REMOVABLE TELESCOPIC EDGE PROTECTION SYSTEM FOR CONSTRUCTION

Description

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to Chinese Patent Application No. 202410975671.3, filed on Jul. 19, 2024, which is hereby incorporated by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the field of construction safety protection, and in particular, to a removable telescopic edge protection system for construction.

BACKGROUND

In existing construction of an open storey of a high-rise building, in order to prevent a building worker from falling from a high altitude and being injured, prevent objects from falling from a high position and prevent fragments blown to a partition from injuring a person below it, a safety edge protection system is generally used and generally includes a plurality of telescopic edge protection posts, and the safety edge protection system is supported between a floor and a ceiling at an edge of the open storey after being mounted to form an entire-surface protective structure, and has the advantages of convenient disassembly and assembly, a good protection effect, or the like.

In the existing telescopic edge protection post, in order to assist a locking mechanism in fixing an outer tube and an inner tube, numerous orifices are required to be formed in the inner tube from top to bottom and configured to receive a wedge-shaped lock pin in the locking mechanism, the formation of the numerous orifices damages structural integrity of an end wall of the inner tube and influences structural firmness of the inner tube, and in order to ensure firm stability of the telescopic edge protection post during use, a wall thickness of the inner tube has to be increased, which increases a material loss of the inner tube to increase a manufacturing cost, and greatly increases an overall weight of the telescopic edge protection post to improve carrying difficulty thereof and result in inconvenient use.

To this end, a removable telescopic edge protection system for construction is proposed to solve some of the problems in the conventional art described above.

SUMMARY

An aspect of the present disclosure is to provide a removable telescopic edge protection system for construction, so as to overcome the defects that in a telescopic edge protection post in the conventional art, due to formation of orifices, structural strength of an inner tube is influenced, and structural stability of the inner tube has to be enhanced by increasing a wall thickness during processing, such that a manufacturing cost is increased, an overall weight is increased, and use convenience is influenced.

The present disclosure provides a removable telescopic edge protection system for construction includes a plurality of telescopic edge protection posts, wherein each telescopic edge protection post includes an outer tube, an inner tube is slidably inserted into the outer tube, orifices uniformly distributed from top to bottom are formed in left and right end walls of the inner tube, metal materials at the orifices are bent towards an inner side of the inner tube to form metal sheets, metal sheets on a left side are fixedly connected in pairs with the metal sheets on a right side, a locking mechanism matched with the left orifice is mounted on an outer end wall of a top of the outer tube, a floor attachment end is mounted at a bottom of the outer tube, and a ceiling attachment end is mounted at a top of the inner tube.

In some embodiments, a first round hole is formed in an end wall of the top of the outer tube, a second round hole corresponding to the first round hole is formed in an end wall of the bottom of the inner tube, a reed is fixedly mounted on an inner side of the bottom of the inner tube, and an inserted pin movably inserted into the second round hole is fixedly mounted on the reed.

In some embodiments, the locking mechanism includes a lock pin housing perpendicularly fixed on a left end wall of the outer tube, a wedge-shaped lock pin extending to an inner side of the outer tube is slidably inserted into the lock pin housing, a stop nut is screwed to an outer end of the lock pin housing, a first spring elastically supported between the wedge-shaped lock pin and the stop nut is placed in the lock pin housing, a wedge pin parallel to the outer tube is movably inserted in the lock pin housing and the wedge-shaped lock pin together, an upper end of the wedge pin is of an outwards-inclined structure, a cylinder pin arranged above the lock pin housing is fixedly mounted on the left end wall of the outer tube, a first tension spring is hooked between the cylinder pin and the upper end of the wedge pin, a pull ring is inserted at a lower end of the wedge pin, and a first protective cover covers a part from the lock pin housing to the cylinder pin.

In some embodiments, the floor attachment end includes a nut fixedly mounted on an inner side of the bottom of the outer tube, a threaded rod vertically arranged on a central axis of the outer tube is screwed in the nut, and a bottom cup is fixedly mounted at a bottom of the threaded rod.

In some embodiments, the ceiling attachment end includes a collar arranged on an inner side of the top of the inner tube, the collar is tightly mounted in the inner tube through a bolt, a shaft rod vertically arranged on a central axis of the inner tube is slidably inserted in the collar, a top cup is mounted at a top of the shaft rod, a stop block slidably mounted in the inner tube is fixedly connected to the shaft rod, the shaft rod is movably sleeved with a second spring, and the second spring is fixedly connected between the collar and the stop block.

In some embodiments, the top cup is rotatably mounted at the top of the shaft rod.

In some embodiments, an indicator arranged between the top cup and the stop block is fixedly mounted on the shaft rod, an outer surface of the indicator is yellow, and a light-reflecting label is pasted on the outer surface of the indicator.

In some embodiments, a limiting sheet is fixedly mounted in the bottom cup, the bottom cup and the top cup are both of bowl-shaped structures with recessed middle positions, and edge positions of the bottom cup and the top cup and a bottom of the limiting sheet are all of blade-shaped structures.

In some embodiments, a rope pulling mechanism matched with the right orifice is mounted on the outer end wall of the top of the outer tube, the rope pulling mechanism includes a shaft bracket fixedly mounted on a right end wall of the outer tube, a rotating disc is rotatably mounted in the shaft bracket, a winding wheel coaxially arranged with the rotating disc is fixedly mounted on a back of the rotating disc, a steel wire rope is wound on the winding wheel, a hook with a lock is fixedly connected to an outer end of the steel wire rope, a plurality of teeth matched with the right orifice are distributed on a cylindrical surface of the rotating disc, the teeth are slidably connected with the rotating disc along a radius of the rotating disc, a limiting column arranged in a middle of the plurality of teeth is fixedly mounted in the rotating disc, the limiting column is slidably sleeved with a pushing block, a part of the pushing block inserted in the rotating disc is of a circular table-shaped structure, a second tension spring is fixedly connected between the teeth and the limiting column, a U-shaped groove corresponding to the second tension spring is formed in the pushing block, a longitudinal fixed shaft is fixedly mounted at an axis of the rotating disc, a handle arranged on an outer side of the shaft bracket is fixedly mounted at one end of a front surface of the fixed shaft, the fixed shaft is rotatably sleeved with a screw cylinder arranged on an inner side of the shaft bracket, the screw cylinder is screwed to the pushing block, a toggling disc is fixedly mounted at an end of the screw cylinder away from the pushing block, a second protective cover covers the shaft bracket, and a hanging hole extending to a left side of the outer tube is fixedly mounted on the second protective cover.

In some embodiments, a planar spring is mounted on a back of the winding wheel, an inner end of the planar spring is fixedly connected with the winding wheel, and an outer end of the planar spring is fixedly connected with the shaft bracket.

Compared with the conventional art, the present disclosure has the following beneficial effects:

• • in the present disclosure, the orifices arranged from top to bottom are formed in the left and right end walls of the inner tube by punching, the metal materials originally existing at corresponding positions of the orifices are bent to the inner side of the inner tube by punching, the metal sheets on a left side are fixedly connected in pairs with the metal sheets on a right side, such that structural firmness of the inner tube can be enhanced, structural stability of the inner tube can be effectively ensured without greatly increasing the wall thickness of the inner tube, the increase of the overall weight of the telescopic edge protection post caused by the increase of the wall thickness of the inner tube is favorably avoided, carrying and using convenience of the telescopic edge protection post can be effectively improved, a material loss in a manufacturing process of the device is favorably reduced, resources are conveniently saved, a cost is reduced, and an efficiency is improved.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings described herein are used to provide further understanding of the present disclosure and form part of the present application, and schematic embodiments of the present disclosure and the description thereof are used to explain the present disclosure and do not constitute improper definition of the present disclosure. In the drawings:

FIG. 1 is a perspective view of a telescopic edge protection post in the present disclosure in a retracted state;

FIG. 2 is a perspective view of the telescopic edge protection post in the present disclosure in an extended state;

FIG. 3 is a perspective view after a first protective cover is removed in the present disclosure;

FIG. 4 is a perspective view of a floor attachment end in the present disclosure;

FIG. 5 is a perspective view of a ceiling attachment end in the present disclosure;

FIG. 6 is a side sectional view of a bottom of an inner tube in the present disclosure;

FIG. 7 is a perspective view after the telescopic edge protection post is provided with a rope pulling mechanism in the present disclosure;

FIG. 8 is a front sectional view of the structure of FIG. 7 in the present disclosure;

FIG. 9 is an enlarged view at A in FIG. 8 in the present disclosure;

FIG. 10 is a perspective view after a second protective cover is removed in the present disclosure;

FIG. 11 is a perspective view of an internal structure of a shaft bracket in the present disclosure from a rear perspective;

FIG. 12 is a top sectional view of the rope pulling mechanism in the present disclosure; and

FIG. 13 is a perspective view of the rope pulling mechanism in the present disclosure in actual use.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The technical solutions in the embodiments of the present disclosure are clearly and completely described with reference to the accompanying drawings in the embodiments of the present disclosure, and apparently, the described embodiments are not all but only a part of the embodiments of the present disclosure.

First embodiment: the present embodiment provides a removable telescopic edge protection system for construction, and referring to FIG. 1 to FIG. 6, specifically, the removable telescopic edge protection system includes a plurality of telescopic edge protection posts erected side by side, wherein each telescopic edge protection post includes an outer tube 1, an inner tube 101 is slidably inserted in the outer tube 1, orifices 102 uniformly distributed from top to bottom are formed in left and right end walls of the inner tube 101 by punching, metal materials at the orifices 102 are punched to form metal sheets 103 bent towards an inner side of the inner tube 101, the corresponding metal sheets 103 on left and right sides are fixedly connected in a spot welding processing mode, a locking mechanism 2 matched with the left orifice 102 is mounted on an outer end wall of a top of the outer tube 1, the locking mechanism 2 includes a lock pin housing 201 perpendicularly fixed on a left end wall of the outer tube 1, a wedge-shaped lock pin 202 extending to an inner side of the outer tube 1 is slidably inserted into the lock pin housing 201, a stop nut 203 is screwed to an outer end of the lock pin housing 201, a first spring 204 elastically supported between the wedge-shaped lock pin 202 and the stop nut 203 is placed in the lock pin housing 201, a wedge pin 205 parallel to the outer tube 1 is movably inserted in the lock pin housing 201 and the wedge-shaped lock pin 202 together, an upper end of the wedge pin 205 is of an outwards-inclined structure, a cylinder pin 206 arranged above the lock pin housing 201 is fixedly mounted on the left end wall of the outer tube 1, a first tension spring 207 is hooked between the cylinder pin 206 and the upper end of the wedge pin 205, a pull ring 208 is inserted at a lower end of the wedge pin 205, a first protective cover 209 covers a part from the lock pin housing 201 to the cylinder pin 206, a floor attachment end 3 is mounted at a bottom of the outer tube 1, the floor attachment end 3 includes a nut 301 fixedly mounted on an inner side of the bottom of the outer tube 1, a threaded rod 302 vertically arranged on a central axis of the outer tube 1 is screwed in the nut 301, a bottom cup 303 is fixedly mounted at a bottom of the threaded rod 302, and a ceiling attachment end 4 is mounted at a top of the inner tube 101.

In use of the device, due to the elastic support of the first spring 204, the wedge-shaped lock pin 202 maintains a tendency to move to the inner side of the outer tube 1, and when the orifice 102 is aligned with the wedge-shaped lock pin 202, the wedge-shaped lock pin 202 is inserted into the orifice 102 under the elastic support of the first spring 204, and the bottom of the end of the wedge-shaped lock pin 202 inserted into the orifice 102 is of an inclined structure, such that when sliding upwards in the outer tube 1 and extending out, the inner tube 101 is guided by the inclined structure of the bottom of the end of the wedge-shaped lock pin 202, and after mutual pressing, the wedge-shaped lock pin 202 can overcome the elastic support of the first spring 204 to retract into the lock pin housing 201 and withdraw from the orifice 102, and after the inner tube 101 is pulled upwards, the inner tube 101 can smoothly slide upwards in the outer tube 1 and extend out; the top of the end of the wedge-shaped lock pin 202 inserted into the orifice 102 is of a flat structure, such that when sliding downwards in the outer tube 1, the inner tube 101 is blocked by the inserted connection of the wedge-shaped lock pin 202 and the orifice 102, and in an unlocked state of the locking mechanism 2, the inner tube 101 cannot be retracted down into the outer tube 1.

When a worker carries out construction on an open storey of a high-rise building, the device can be used for safety protection, the worker erects the telescopic edge protection post on a floor of the storey to allow the floor attachment end 3 at the bottom of the outer tube 1 to be supported on the floor, and then pulls the inner tube 101 upwards to allow the ceiling attachment end 4 at the top of the inner tube 101 to be supported on a ceiling, and allow the bottom cup 303 at the bottom of the threaded rod 302 to be tightly clamped to the floor, the worker then holds and rotates the outer tube 1, the nut 301 in the bottom of the outer tube 1 and the threaded rod 302 rotate relatively under driving of the rotation, and the threaded rod 302 moves downwards in the nut 301 under driving of meshing of threads to gradually increase a distance between the bottom cup 303 and the outer tube 1, such that the device can be firmly supported between the floor and the ceiling of the open storey of the high-rise building; the plurality of telescopic edge protection posts are sequentially arranged at an edge of the open storey according to the above operation to form an entire-surface protective structure, the worker can be favorably prevented from falling from a high altitude and being injured, high-altitude object falling can be favorably avoided, and the worker can flexibly set a distance between every two adjacent telescopic edge protection posts according to an actual construction condition, so as to flexibly adjust a protective density of the device.

When the device is required to be dismantled after the construction is finished, the worker only needs to pull the pull ring 208 to apply a force downwards to overcome the upward elastic pulling of the wedge pin 205 by the first tension spring 207, the wedge pin 205 moves downwards, and the inclined structure at the upper end of the wedge pin 205 enters an inner side of the wedge-shaped lock pin 202 to apply leftward pushing to the wedge-shaped lock pin 202, such that the wedge-shaped lock pin 202 moves leftwards and withdraws from the orifice 102; after blocking of the wedge-shaped lock pin 202 is eliminated, the inner tube 101 slides downwards and retracts into the outer tube 1 under the action of gravity, which is favorable for improving convenience of disassembling and recycling of the device; when the worker releases the pulling of the pull ring 208, a downward pulling force applied to the wedge pin 205 disappears, the wedge pin 205 is pulled to move upwards to be reset under resetting resilience of the first tension spring 207, and the inclined structure on the wedge pin 205 moves upwards and then retracts out of the inner side of the wedge-shaped lock pin 202, such that the elastic support of the first spring 204 can push the wedge-shaped lock pin 202 to move into the orifice 102 again, thus guaranteeing stability of locking of a position of the inner tube 101 by the locking mechanism 2 after an external force disappears.

In use of the device, the orifices 102 are formed by punching, the plurality of orifices 102 arranged from top to bottom are formed in the left and right end walls of the inner tube 101 by punching, the metal materials originally existing at positions corresponding to the orifices 102 are bent to the inner side of the inner tube 101 under the action of the punching, and ends of the corresponding metal sheets 103 on the left and right sides are mutually attached, and fixed by spot welding, such that after the orifices 102 are formed by punching, the remaining metal sheet 103 can form a firmly connected structure inside the inner tube 101, structural firmness of the inner tube 101 is enhanced inside the inner tube 101, and in this structure, structural stability of the inner tube 101 can be effectively ensured without greatly increasing a wall thickness of the inner tube 101, an increase of an overall weight of the telescopic edge protection post caused by the increase of the wall thickness of the inner tube 101 is favorably avoided, carrying and using convenience of the telescopic edge protection post can be effectively improved, and a manufacturing cost of the device can be effectively reduced.

In a specific implementation process, as shown in FIG. 1 and FIG. 6, a first round hole 104 is formed in an end wall of the top of the outer tube 1, a second round hole 105 corresponding to the first round hole 104 is formed in an end wall of the bottom of the inner tube 101, a reed 106 is fixedly mounted on an inner side of the bottom of the inner tube 1, and an inserted pin 107 movably inserted into the second round hole 105 is fixedly mounted on the reed 106; when the device is used, the reed 106 provides an elastic support force for the inserted pin 107, the inserted pin 107 has a length greater than a total wall thickness of the outer tube 1 and the inner tube 101, and when the inner tube 101 slides upwards to cause the bottom of the inner tube 101 to slide to the top of the outer tube 1, the second round hole 105 formed in the end wall of the bottom of the inner tube 101 can be aligned with the first round hole 104 formed in the end wall of the top of the outer tube 1, and under the elastic support of the reed 106, the inserted pin 107 is inserted into the first round hole 104 to limit the position of the inner tube 101, and block further movement of the inner tube 101, so as to achieve the purpose of preventing the inner tube 101 from dropping, such that the risk of high-altitude object falling caused by an improper operation can be avoided during high-altitude operations to better protect safety of workers on a lower storey of a construction site; when the inner tube 101 is required to be retracted downwards, the worker only needs to press the inserted pin 107 to allow the inserted pin to overcome the elastic support of the reed 106 to withdraw from the first round hole 104, and the inner tube 101 can be driven to be retracted downwards into the outer tube 1, such that the operation is convenient.

In the specific implementation process, as shown in FIG. 5, the ceiling attachment end 4 includes a collar 401 arranged on an inner side of the top of the inner tube 101, the collar 401 is tightly mounted in the inner tube 101 through a bolt, a shaft rod 402 vertically arranged on a central axis of the inner tube 101 is slidably inserted in the collar 401, a top cup 403 is mounted at a top of the shaft rod 402, the top cup 403 is rotatably mounted at the top of the shaft rod 402, a stop block 404 slidably mounted in the inner tube 101 is fixedly connected to the shaft rod 402, the shaft rod 402 is movably sleeved with a second spring 405, the second spring 405 is fixedly connected between the collar 401 and the stop block 404, an indicator 406 arranged between the top cup 403 and the stop block 404 is fixedly mounted on the shaft rod 402, an outer surface of the indicator 406 is yellow, and a light-reflecting label is pasted on the outer surface of the indicator 406.

In use of the device, the shaft rod 402 is mounted in the inner tube 101 through the collar 401 and can move relative to the inner tube 101, and when the telescopic edge protection post is erected on the floor, the top cup 403 is tightly attached to the ceiling of the storey, and when the worker rotates the outer tube 1, the distance between the inner tube 101 and the bottom cup 303 is continuously increased through screwing between the nut 301 and the threaded rod 302, and since the bottom cup 303 is tightly attached to the floor, and the top cup 403 is tightly attached to the ceiling, under the interaction, the shaft rod 402 is continuously moved towards the inner tube 101 to finally compress the second spring 405 elastically supported between the collar 401 and the stop block 404, the distance between the top cup 403 and the inner tube 101 is gradually shortened, and the elastic support of the second spring 405 is used for tensioning and adjusting when the device is mounted and used, thus further improving stability of the device in mounting and use; the collar 401 is firmly mounted at the top of the inner tube 101 through the bolt, such that the ceiling attachment end 4 can be dismantled from the top of the inner tube 101 during maintenance, which is favorable for improving convenience of maintenance, disassembly and replacement of the ceiling attachment end 4 to a certain extent; the threaded rod 302 is a double-start threaded rod with a lead being twice a pitch and can tighten the second spring 405 faster during rotation.

In use of the device, the shaft rod 402 is rotatably connected with the top cup 403, such that when the outer tube 1 is held and rotated by the worker, the top cup 403 can rotate relative to the inner tube 101, and the rotation applied by the worker to the outer tube 1 does not act on the top cup 403, which is favorable for ensuring stability of biting of the top cup 403 on the ceiling.

The indicator 406 is fixedly mounted on the shaft rod 402 and arranged between the top cup 403 and the stop block 404, the indicator 406 is normally exposed outside the inner tube 101, and when the device is vertically mounted between the floor and the ceiling of the open storey of the high-rise building, and the second spring 405 in the ceiling attachment end 4 is under a sufficient load with continuous rotation of the outer tube 1 by the worker, the indicator 406 mounted on the shaft rod 402 is retracted into the inner tube 101, and at this point, the worker cannot observe the indicator 406; the worker can know a tensioning state of the ceiling attachment end 4 according to a position state of the indicator 406, and when the indicator 406 is completely hidden in the inner tube 101, it is indicated that the ceiling attachment end 4 is completely tensioned, and conversely, if the indicator 406 is not completely shielded, the worker needs to continue to rotate the outer tube 1 until the indicator 406 is completely shielded by the inner tube 101; through the setting of the indicator 406, the worker can know an actual mounting condition of the telescopic edge protection post conveniently and clearly, the condition that mounting is not in place is avoided, and safety and convenience of the device in actual use are improved to a certain extent; the ceiling attachment end 4 is arranged at the top of the inner tube 101, such that the worker can more conveniently observe the indicator 406; the indicator 406 may be more striking by setting the outer surface of the indicator 406 yellow and providing the light-reflecting label, which is favorable for guaranteeing accuracy of position observation of the indicator 406 by the worker.

In the specific implementation process, as shown in FIG. 4 and FIG. 5, a limiting sheet 304 is fixedly mounted in the bottom cup 303, the bottom cup 303 and the top cup 403 are both of bowl-shaped structures with recessed middle positions, and edge positions of the bottom cup 303 and the top cup 403 and a bottom of the limiting sheet 304 are all of blade-shaped structures; when the device is used, the bottom cup 303 and the top cup 403 are of the cup-shaped structures with the recessed middle positions, such that the bottom cup 303 and the top cup 403 can be buckled on the floor and the ceiling respectively; the edge positions of the bottom cup 303 and the top cup 403 are of the blade-shaped structures, such that in a mounting process, the bottom cup 303 and the top cup 403 can be embedded into the floor and the ceiling more easily, which is favorable for improving firm stability of the device after mounting; meanwhile, the limiting sheet 304 is fixedly mounted in the bottom cup 303, such that when the bottom cup 303 is embedded into the floor, the bottom cup 303 can be prevented from rotating relative to the floor when the outer tube 1 is rotated by the worker, which is favorable for guaranteeing the stability of the device in actual use.

Second embodiment: as shown in FIG. 1 to FIG. 13, the present embodiment further includes the following content on the basis of the first embodiment: a rope pulling mechanism 5 matched with the right orifice 102 is mounted on the outer end wall of the top of the outer tube 1, the rope pulling mechanism 5 includes a shaft bracket 501 fixedly mounted on a right end wall of the outer tube 1, a rotating disc 502 is rotatably mounted in the shaft bracket 501, a winding wheel 503 coaxially arranged with the rotating disc is fixedly mounted on a back of the rotating disc 502, a steel wire rope 504 is wound on the winding wheel 503, a hook 505 with a lock is fixedly connected to an outer end of the steel wire rope 504, a planar spring 506 is mounted on a back of the winding wheel 503, an inner end of the planar spring 506 is fixedly connected with the winding wheel 503, an outer end of the planar spring 506 is fixedly connected with the shaft bracket 501, a plurality of teeth 507 matched with the right orifice 102 are distributed on a cylindrical surface of the rotating disc 502, the teeth 507 are slidably connected with the rotating disc 502 along a radius of the rotating disc 502, a limiting column 508 arranged in a middle of the plurality of teeth 507 is fixedly mounted in the rotating disc 502, the limiting column 508 is slidably sleeved with a pushing block 509, a part of the pushing block 509 inserted in the rotating disc 502 is of a circular table-shaped structure, a second tension spring 510 is fixedly connected between the teeth 507 and the limiting column 508, a U-shaped groove corresponding to the second tension spring 510 is formed in the pushing block 509, a longitudinal fixed shaft 511 is fixedly mounted at an axis of the rotating disc 502, a handle 512 arranged on an outer side of the shaft bracket 501 is fixedly mounted at one end of a front surface of the fixed shaft 511, the fixed shaft 511 is rotatably sleeved with a screw cylinder 513 arranged on an inner side of the shaft bracket 501, the screw cylinder 513 is screwed to the pushing block 509, a toggling disc 514 is fixedly mounted at an end of the screw cylinder 513 away from the pushing block 509, a second protective cover 515 covers the shaft bracket 501, and a hanging hole 516 extending to a left side of the outer tube 1 is fixedly mounted on the second protective cover 515.

When the plurality of telescopic edge protection posts are used in an associated mode to form the entire-surface protective fence structure, the worker can pull and guide the steel wire rope 504 on one device out, and hook the hook 505 with a lock to the hanging hole 516 on the other device, so as to form a transverse connecting structure between every two adjacent telescopic edge protection posts, such that the plurality of telescopic edge protection posts are connected substantially when being arranged, and a protection performance achieved when the telescopic edge protection posts form the entire-surface protective fence structure can be further improved under mutual cooperation.

In the mounting process, when the device is firmly erected between the floor and the ceiling, the worker holds the handle 512 to limit rotation of the fixed shaft 511, such that the rotating disc 502 is temporarily kept in a non-rotatable state; the worker then toggles the toggling disc 514 to drive the screw cylinder 513 to rotate, and since the pushing block 509 sleeves the limiting column 508, and an inner side size of the pushing block 509 is matched with an outer side size of the limiting column 508, only axial sliding can be generated between the pushing block 509 and the limiting column 508, radial rotation cannot be generated, and in the rotation process, the pushing block 509 is driven to move towards the exterior of the rotating disc 502 along the screw cylinder 513 by means of meshing of threads, and since a part of the pushing block 509 inserted into the rotating disc 502 is of a circular table-shaped structure, as the circular table-shaped structure gradually withdraws outwards, degrees of outward support of the plural teeth 507 by the pushing block 509 are gradually weakened, the plurality of teeth 507 move towards a central axis of the rotating disc 502 under elastic pulling of the second tension spring 510 and gradually retract into the rotating disc 502, and at this point, the teeth 507 are no longer meshed with the right orifice 102, and after the worker loosens the handle 512, the rotating disc 502 can normally rotate, and then, the worker pulls the steel wire rope 504 outwards and hooks the hook 505 with a lock connected with the outer end of the steel wire rope 504 onto the hanging hole 516 on the other telescopic edge protection post, so as to realize the connection between the two telescopic edge protection posts; when the steel wire rope 504 is pulled outwards, the winding wheel 503 is driven to rotate clockwise, and then, the rotating disc 502 is driven to rotate clockwise.

In the process that the steel wire rope 504 is continuously pulled outwards, the planar spring 506 connected between the winding wheel 503 and the shaft bracket 501 is gradually tightened, and after the hook 505 with a lock is hooked on the hanging hole 516 of the other telescopic edge protection post, the worker releases the pulling of the steel wire rope 504, and under elastic resilience of the planar spring 506, the winding wheel 503 is driven to rotate reversely to wind the redundant steel wire rope 504 on the winding wheel 503 again, such that the steel wire rope 504 is tightly connected between the two telescopic edge protection posts; by arranging the planar spring 506 between the shaft bracket 501 and the winding wheel 503, when the steel wire rope 504 is pulled outwards, the planar spring 506 can be tightened for force accumulation, and after the external force disappears, the steel wire rope 504 can be automatically wound on the winding wheel 503 again, which is favorable for improving convenience of the device in the use process.

After the steel wire rope 504 is tightly connected between the two telescopic edge protection posts, the worker holds the handle 512 again to limit the rotation of the rotating disc 502, and then reversely toggles the toggling disc 514 to allow the pushing block 509 to enter the rotating disc 502 again, and in the process that the pushing block 509 enters the rotating disc 502 again, a side end wall of the circular table-shaped structure on the pushing block 509 supports the plurality of teeth 507 to move the teeth 507 away from the central axis of the rotating disc 502, and finally, the outwards sliding teeth 507 can be meshed with the right orifice 102, and then, the worker releases the handle 512 to complete the mounting of the telescopic edge protection posts; in actual use of the device, the entire-surface protective fence structure formed by the association of the plurality of telescopic edge protection posts is erected at the edge of the open storey of the high-rise building to protect and block people and objects in the storey, and when the outer tube 1, the inner tube 101 or the steel wire rope 504 is subjected to an outward acting force, under the interaction, the steel wire rope 504 is relatively pulled outwards, and in the process that the steel wire rope 504 is pulled outwards, the rotating disc 502 is driven to rotate clockwise, and under an influence of meshing of the teeth 507 mounted on the outer side of the rotating disc 502 and the right orifice 102, the inner tube 101 can be driven to move upwards in the outer tube 1, and since an upper end and a lower end of the telescopic edge protection post are respectively and firmly supported between the ceiling and the floor, the inner tube 101 cannot move upwards continuously, such that the outward acting force can further enhance the firmness of the support of the device between the ceiling and the floor, which is favorable for improving protection safety and stability of the device for high-rise construction.

Specifically, the present disclosure has the following working principle and operation method.

The worker erects the telescopic edge protection post on the floor, and slides the inner tube 1 upwards to allow the inner tube 101 to extend upwards from the outer tube 1, and under the elastic support of the first spring 204, the wedge-shaped lock pin 202 is inserted into the left orifice 102 to restrain the inner tube 101 from retracting downwards into the outer tube 1, the bottom cup 303 in the floor attachment end 3 is supported on the floor, the top cup 403 in the ceiling attachment end 4 is supported on the ceiling, and then, the worker rotates the outer tube 1 to drive the nut 301 and the threaded rod 302 to rotate relatively, such that the distance between the outer tube 1 and the bottom cup 303 is increased gradually, and tightness of embedding of the bottom cup 303 on the floor and embedding of the top cup 403 on the ceiling is improved; during the continuous rotation, the distance between the top cup 403 and the inner tube 101 is reduced gradually to hide the indicator 406 in the inner tube 101, which reminds the worker that the second spring 405 is tensioned in place; the mounting of the plurality of telescopic edge protection posts is completed gradually according to the above operations, and after the plurality of telescopic edge protection posts are erected, the worker holds the handle 512 and toggles the toggling disc 514 to rotate to drive the pushing block 509 to withdraw from the rotating disc 502, such that the teeth 507 retract towards the interior of the rotating disc 502, the teeth 507 are not meshed with the right orifice 102 again, and the rotating disc 502 can rotate freely; the worker pulls the steel wire rope 504 outwards and hangs the hook 505 with a lock on the hanging hole 516 on the other telescopic edge protection post, the steel wire rope 504 is tightly connected between the two telescopic edge protection posts under the elastic resilience of the planar spring 506, and then, the worker holds the handle 512 and reversely toggles the toggling disc 514 to move the teeth 507 outwards to be meshed with the right orifice 102 again, the above operations are repeated to complete hooking of the plurality of hooks 505 with a lock, and finally, the entire-surface protective structure is formed at the edge of the open storey of the high-rise building.

Following are the technical effects of some embodiments in this disclosure:

• • 1. the first round hole is formed in the end wall of the top of the outer tube, the second round hole corresponding to the first round hole is formed in the end wall of the bottom of the inner tube, the inserted pin is inserted into the second round hole, and by virtue of elastic support of the reed, when the inner tube moves upwards to be about to slide off the outer tube, the inserted pin can be inserted into the second round hole and the first round hole to limit further movement of the inner tube, thus effectively avoiding the risk of high-altitude object falling caused by the slipping of the inner tube due to an improper operation in a use process, and improving use safety of the device to a certain extent;
  • 2. the ceiling attachment end is mounted at the top of the inner tube, and during mounting, a distance between the top cup and the inner tube is gradually shortened due to relative rotation of the nut and the threaded rod, such that the second spring is continuously compressed, and the telescopic edge protection post is tensioned and adjusted by elastic support of the second spring; meanwhile, the bottom cup and the top cup are both of the bowl-shaped structures, and the edge positions thereof are of the blade-shaped structures, such that the bottom cup and the top cup can be better embedded into a floor and a ceiling under continuous pressing, thus further improving stability of the device during mounting and use;
  • 3. the indicator is mounted between the top cup and the stop block and exposed outside the inner tube in a normal state, the indicator is hidden in the inner tube after the ceiling attachment end is completely tensioned, and a tensioning state of the ceiling attachment end is indicated by the indicator, such that a worker can conveniently and clearly know an actual mounting condition of the telescopic edge protection post, and the condition that mounting is not in place is avoided; meanwhile, the indicator may be more striking by setting the outer surface of the indicator yellow and providing the light-reflecting label, which is favorable for guaranteeing accuracy of position observation of the indicator by the worker;
  • 4. the rope pulling mechanism is mounted on the outer end wall of the top of the outer tube, and the steel wire rope is pulled out and then connected to the hanging hole in another telescopic edge protection post through the hook with a lock, such that two telescopic edge protection posts can be directly associated, a plurality of telescopic edge protection posts are substantially connected when being arranged, and a protection performance achieved when the telescopic edge protection posts form an entire-surface protective fence structure can be further improved under mutual cooperation; and
  • 5. a meshing state of the teeth and the right orifice is switched by adjusting a position of the pushing block, the teeth are not meshed with the right orifice during mounting, the steel wire rope can be normally pulled, and after the mounting is finished, the teeth are meshed with the orifice, and the pull of the steel wire rope can drive the rotating disc to rotate to apply an upward driving acting force to the inner tube, such that when the device is subjected to an outward acting force, firmness of support of the telescopic edge protection post between the floor and the ceiling can be further enhanced, which is favorable for greatly improving protection safety and stability of the device for high-rise construction.

The foregoing descriptions are merely desired embodiments of the present disclosure, but are not intended to limit the protection scope of the present disclosure. Any equivalent replacement or variation of the technical solution of the present disclosure and the inventive concept thereof by a person skilled in the art within the technical scope disclosed in the present disclosure shall fall within the protection scope of the present disclosure.