Multi-Pull-Rod Roman Umbrella

Description

RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202421889530.1 filed on Aug. 6, 2024, to Chinese Patent Application No. 202420516306.1 filed on Mar. 16, 2024, and to Chinese Patent Application No. 202423098305.9 filed on Dec. 13, 2024.

The above applications and all patents, patent applications, articles, books, specifications, other publications, documents, and things referenced herein are hereby incorporated herein in their entirety for all purposes. To the extent of any inconsistency or conflict in the definition or use of a term between any of the incorporated publications, documents, or things and the text of the present document, the definition or use of the term in the present document shall prevail.

TECHNICAL FIELD

The present disclosure belongs to the technical field of Roman umbrellas, and relates to a multi-pull-rod Roman umbrella.

BACKGROUND

Roman umbrellas are usually used for outdoor activities or placed outside shops, and are usually used for shading sunlight and rain. In high wind weather, umbrella surfaces of the Roman umbrellas will bear a large wind force, so that windproof performance of umbrella frames is required to be relatively high. In an existing Roman umbrella structure using multiple pull rods, stability and a windproof effect of an umbrella frame are improved through the arrangement of the multiple pull rods.

An existing patent literature, such as Chinese patent literature [Publication Number: CN220369608U], disclose a multi-pull-rod assembly structure for a sunshade parasol, including a stand column, a diagonal rod, and at least two pull rods. One end of each pull rod is connected with a top end of the stand column, one end of the diagonal rod is connected with the stand column, and the other end of each pull rod is connected with the diagonal rod. The multi-pull-rod assembly structure further includes a stand column transition sleeve sleeving the top end of the stand column and a diagonal rod transition sleeve sleeving the diagonal rod. The stand column transition sleeve has a top plate and side plates connected with two sides of the top plate and vertically downward. All the pull rods are sequentially disposed on side edges of the side plates and connected by screws. The diagonal rod transition sleeve has two vertically-disposed connecting plates, and all the pull rods are sequentially disposed on side edges of the connecting plates and connected by screws.

By sleeving the top end of the stand column with the stand column transition sleeve and connecting top ends of the multiple pull rods to the side plates of the stand column transition sleeve, the above structure achieves a connection between the pull rods and the stand column. However, in the high wind weather, due to the fact that the stand column and the pull rods are only connected through the stand column transition sleeve and the screws, there will be shaking between the stand column transition sleeve and the stand column in the case of large wind force, resulting in lower windproof performance of the Roman umbrella.

SUMMARY

An objective of the present disclosure is to provide a multi-pull-rod Roman umbrella for the above problems in the prior art. The technical problem to be solved by the present disclosure is how to solve a problem of poor windproof performance of an existing Roman umbrella.

The objective of the present disclosure can be achieved through the following technical solutions:

• • a Roman umbrella includes a fixed rod, a diagonal rod, and at least two pull rods, lower ends of the at least two pull rods are all hinged in a middle of the diagonal rod, wherein the Roman umbrella further includes a clamping seat with a U-shaped cross section formed by extending two side wings to the same side on the basis of a tubular member, upper ends of the at least two pull rods are hinged to the clamping seat, and the fixed rod is clamped between the two side wings of the clamping seat, fits and abuts against an inner side of the clamping seat, and then is fixedly connected with the clamping seat through a fastener.

The clamping seat is the clamping seat with the U-shaped cross section formed by extending the two side wings to the same side on the basis of the tubular member. A structural strength of the tubular member is high, and the upper ends of the pull rods are hinged to the clamping seat, resulting in stable connection and good windproof performance. Due to the U-shaped cross section of the clamping seat, an opening is formed in an outer end of the clamping seat, and the fixed rod is clamped between the two side wings of the clamping seat from the opening, fits and abuts against the inner side of the clamping seat, and is fixedly connected with the clamping seat through the fastener. The connection between the fixed rod and the clamping seat is achieved by first clamping the fixed rod between the two side wings of the clamping seat, and making the fixed rod fit and abut against the inner side of the clamping seat to achieve positioning of the fixed rod and the clamping seat, and then achieve fixed connection through the fastener after positioning. Stability of the connection between the clamping seat and the fixed rod is improved by the half-surrounded structure positioning. The connection between the fixed rod and the clamping seat is at the side wings. Although the strength at the side wings is the lowest in the entire structure of the clamping seat, by partially embedding the fixed rod and tightly plugging the side wings of the clamping seat with the fixed rod, the structural strength after the connection at the side wings is improved, thereby making the strength of the clamping seat higher after the clamping seat is connected with the fixed rod. In this way, in high wind weather, through the tubular member structure with the side wings on the clamping seat, the installation and fixation of a plurality of points between the clamping seat and the fixed rod, and the arrangement of the high-strength clamping seat, the stability of the connection between the pull rods and the fixed rod is improved, and the windproof performance of the Roman umbrella is improved.

The above fixed rod may be a stand column independently disposed on a ground base or a profile fixed on a wall, so that the Roman umbrella can be disposed and used independently or used as a wall-mounted Roman umbrella, thereby improving practicality of the Roman umbrella.

In one embodiment of the above Roman umbrella, the inner side of the clamping seat has a protruding planar abutment surface, the fixed rod has a flat support wall, and the abutment surface fits and abuts against the support wall.

The abutment surface is disposed in a protruding manner, so that the inner side of the clamping seat has a protruding structure, which increases the structural strength of the clamping seat at the abutment surface and improves stability of fitting and abutting of the clamping seat and the fixed rod. The abutment surface is planar, the support wall is also flat, and thus a fitting area is larger during mutual abutting, which further improves the stability of the installation and connection between the fixed rod and the clamping seat, and improves the windproof performance of the Roman umbrella.

In one embodiment of the above Roman umbrella, the inner side of the clamping seat has arc-shaped limiting surfaces located on two sides of the abutment surface respectively, the fixed rod has limiting portions disposed in a vertical direction and located on two sides of the support wall respectively, the two limiting portions are spaced apart, and outer side walls of the two limiting portions fit and abut against the two limiting surfaces in a one-to-one correspondence manner.

Through the fitting and abutting of the limiting surfaces and the limiting portions and an arc-shaped surface design, a fitting and abutting area between the clamping seat and the fixed rod is increased, so that the positioning of the fixed rod and the clamping seat is more stable, and the windproof performance of the Roman umbrella is improved.

In one embodiment of the above Roman umbrella, outer ends of the two limiting portions are disposed close to each other.

The two limiting portions form a shape similar to an arch bridge, which has an effect of enhancing the wind resistance performance and is less prone to deformation than a straight plate. The abutting stability of the limiting portions and the abutment surface is improved, which is beneficial for improving the windproof performance of the Roman umbrella.

In one embodiment of the above Roman umbrella, the clamping seat includes a hollow tubular installation portion, the installation portion internally has a plurality of plate-shaped reinforcing walls parallel to each other, the upper ends of the at least two pull rods are hinged to the installation portion, and the reinforcing walls are all disposed parallel to the at least two pull rods.

By disposing the hollow tubular installation portion and having the plurality of reinforcing walls in the installation portion, structural strength of the installation portion is improved while achieving lightweight design, and hinging stability of the pull rods is improved. Through parallel arrangement, the structural strength of the installation portion in a front-and-rear direction is increased. When encountering the high wind weather, the pull rods are prone to swaying back and forth along the installation portion. Therefore, by increasing the structural strength of the clamping seat in this direction, the stability of the connection between the installation portion and the pull rods is improved, and the windproof effect of the Roman umbrella is improved.

In one embodiment of the above Roman umbrella, a first needle roller bearing is disposed between each of the at least two pull rods and the installation portion.

By disposing the first needle roller bearings, although a surface contact is changed to multiple line contacts, when wind force is large, the pull rods are affected by the wind force and are prone to displacement in the front-and-rear direction. Needle rollers on the first needle roller bearings can swing in the front-and-rear direction to buffer the displacement of the pull rods, so that the connection between the pull rods and the installation portion is always kept stable, and there will be no extrusion caused by the pull rods on the installation portion after the displacement, thus ensuring the stability of the connection between the pull rods and the installation portion, as well as ensuring the stability of the swing of the pull rods in a process of closing and opening the umbrella.

In one embodiment of the Roman umbrella, a connecting sleeve is clamped in the middle of the diagonal rod, the at least two pull rods are provided, in a quantity of two, the two of the at least two pull rods are respectively located on two sides of the connecting sleeve and hinged to the diagonal rod through another fastener, counter bores are formed in two side walls of the connecting sleeve, each of the counter bores is internally provided with a second needle roller bearing, as well as a first support gasket and a second support gasket which are located on two sides of the second needle roller bearing, and the first support gasket in each of the counter bores abuts against a side wall of corresponding one of the at least two pull rods.

The first support gaskets enable the contact between the connecting sleeve and the pull rods to be surface contact, and through the cooperation of the two surface contacts, the connection at the two ends of the pull rods is limited while also ensuring smooth swing of the diagonal rod, thereby achieving the objective of improving the windproof performance.

In one embodiment of the above Roman umbrella, the connecting sleeve is in a U shape, and the connecting sleeve is clamped upward in the middle of the diagonal rod.

The shape setting of the connecting sleeve enables a lower side of the diagonal rod to be wrapped during connection, and the pull rods always have pulling force to pull the diagonal rod upwards, thereby improving the stability of the connection between the diagonal rod and the pull rods.

In one embodiment of the above Roman umbrella, an handle shell is slidably connected to the fixed rod, a lower end of the diagonal rod is hinged to the handle shell through a hinge bolt and a nut, installation counterbores are formed in two side walls of the handle shell, each of the installation counterbores is internally provided with a third needle roller bearing and third support gaskets located on two sides of the third needle roller bearings, and the third needle roller bearing and the corresponding third support gaskets are compressed in corresponding one of the installation counterbores through the hinge bolt and the nut.

Such arrangement enables the diagonal rod to be stably connected with the fixed rod through the handle shell, and increases the contact area through the third support gaskets, so that the diagonal rod and the handle shell are also in surface contact, increasing the stability at the connection and improving the wind resistance performance.

In one embodiment of the above Roman umbrella, each of left and right sides of the fixed rod is provided with the clamping seat, the diagonal rod, and the at least two pull rods.

In different usage environments, umbrella frames may be connected to the left and right sides of the fixed rod by clamping the clamping seats on the left and right sides of the fixed rod, increasing a usage area of the Roman umbrella and improving practical performance of the Roman umbrella.

In one embodiment of the above Roman umbrella, an upper umbrella disc is connected to an upper end of the diagonal rod, a connecting rod is further connected to the middle of the diagonal rod, a lower umbrella disc is connected to a lower end of the connecting rod, an upper end of the lower umbrella disc has an insertion rod, the insertion rod is in a rod shape with a polygonal cross section, an insertion sleeve is fixed to a lower end of the upper umbrella disc, an inner hole of the insertion sleeve is a polygonal hole that is matched with the insertion rod, and the insertion rod is capable of being inserted into the inner hole of the insertion sleeve.

When opening the umbrella, the lower umbrella disc gradually gets close to the upper umbrella disc and the insertion rod is inserted into the insertion sleeve to form a circumferential fixation, thereby achieving circumferential positioning of the upper umbrella disc and the lower umbrella disc. In the high wind weather, there will be no circumferential shaking between the upper umbrella disc and the lower umbrella disc, thus the windproof performance of the entire umbrella frame is improved. Moreover, because edges of the insertion rod are disposed in a length direction of the insertion rod, the overall strength of the insertion rod is high, which not only plays a limiting role during the large wind force, but also enhances the strength of the insertion rod, thereby further improving the windproof performance.

In one embodiment of the above Roman umbrella, the edges of the insertion rod are all disposed slantly outward from top to bottom.

Such arrangement allows the insertion rod to be inserted into the insertion sleeve more smoothly and quickly, and better achieves upward positioning after insertion, thereby further improving the convenience and stability of umbrella opening.

In one embodiment of the above Roman umbrella, an upper end of the insertion sleeve has an annular limiting stop edge, and the upper end of the insertion rod is capable of abutting against the limiting stop edge.

The arrangement of the limiting stop edge can not only improve the stability of the connection between the insertion rod and the insertion sleeve, but also enhance the structural strength of the insertion sleeve itself.

In one embodiment of the above Roman umbrella, a roughly H-shaped connecting seat is connected between the diagonal rod and the connecting rod, the connecting seat includes a connecting block, two upper connecting plates formed by protruding upwards at an upper end of the connecting block, and two lower connecting plates formed by protruding downwards at a lower end of the connecting block, the diagonal rod is embedded between the two upper connecting plates and fixedly connected with the upper connecting plates, and the connecting rod is embedded between the two lower connecting plates and hinged to the lower connecting plates.

The H-shaped connecting seat is stable in structure, so that the connection between the diagonal rod and the connecting rod is stable, thereby improving the windproof performance of the Roman umbrella.

In one embodiment of the above Roman umbrella, a Y-shaped installation seat is fixed to the upper end of the diagonal rod, the upper umbrella disc has a downwardly-disposed connecting tube, and the connecting tube is embedded between two fork arms of the installation seat and hinged to the fork arms.

The Y-shaped installation seat is stable in structure, so that the connection between the upper umbrella disc and the installation seat is stable, thereby improving the windproof performance of the Roman umbrella.

Compared with the prior art, this Roman umbrella has the following advantages: due to the fact that the clamping seat is the structure formed by extending the two side wings to the same side on the basis of the tubular member, the structural strength of the tubular member is high, the upper ends of the pull rods are hinged to the clamping seat, the connection is stable, and the windproof is good. The fixed rod is clamped between the two side wings of the clamping seat, and fits and abuts against the inner side of the clamping seat. By partially embedding the fixed rod, the side wings of the clamping seat are plugged tightly with the fixed rod, which improves the structural strength of the side wings after connection. In this way, in the high wind weather, through the tubular member structure with the side wings on the clamping seat, the installation and positioning structure of the plurality of points between the clamping seat and the fixed rod, and the arrangement of the high-strength clamping seat, the stability of the connection between the pull rods and the fixed rod is improved, and the windproof performance of the Roman umbrella is improved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a stereoscopic structure in Embodiment I of this Roman umbrella.

FIG. 2 is a partial enlarged view of a position A in FIG. 1.

FIG. 3 is a disassembled view of a pull rod, a clamping seat, and a diagonal rod in Embodiment I of this Roman umbrella.

FIG. 4 is a schematic structural diagram after partial assembly of a clamping seat in Embodiment I of this Roman umbrella.

FIG. 5 is an exploded view of a connecting sleeve, a second needle roller bearing, a third bolt and the like in Embodiment I of this Roman umbrella.

FIG. 6 is a partial exploded view of an handle shell in Embodiment I of this Roman umbrella.

FIG. 7 is a partial enlarged view of a position B in FIG. 1.

FIG. 8 is a section view of FIG. 7.

FIG. 9 is a stereoscopic view of a lower umbrella disc and an insertion sleeve during disassembly in Embodiment I of this Roman umbrella.

FIG. 10 is a partial enlarged view of a position C in FIG. 1.

FIG. 11 is a partial exploded view of a connecting seat in Embodiment I of this Roman umbrella.

FIG. 12 is a stereoscopic view of an upper umbrella disc and an installation seat during hinge in Embodiment I of this Roman umbrella.

FIG. 13 is a stereoscopic view of an installation seat in Embodiment I of this Roman umbrella.

DETAILED DESCRIPTION

Set forth below are specific embodiments of the present disclosure and a further description of the technical solutions of the present disclosure in conjunction with the accompanying drawings, but the present disclosure is not limited to these embodiments.

Embodiment I

As shown in FIG. 1, a Roman umbrella includes a fixed rod 6, a diagonal rod 1, an umbrella skeleton 10, and two pull rods 2. A clamping seat 3 is fixed to an upper end of the fixed rod 6, upper ends of the pull rods 2 are both hinged to the clamping seat 3, a connecting sleeve 7 and a connecting seat 12 are fixed to a middle of the diagonal rod 1, and lower ends of the pull rods 2 are both hinged to the connecting sleeve 7. A lower end of the diagonal rod 1 is connected to the fixed rod 6 through an handle shell 8, and an upper end of the diagonal rod 1 is connected with the umbrella skeleton 10 through an installation seat 11. The umbrella skeleton 10 includes an upper umbrella disc 101 and a lower umbrella disc 102, the installation seat 11 is hinged to the upper umbrella disc 101, and a plurality of long ribs 106 disposed sequentially in a circumferential direction are further hinged to the upper umbrella disc 101. A middle rod 105 is fixed to the upper umbrella disc 101, and an insertion sleeve 104 sleeves and is fixed to a lower end of the middle rod 105. An upper end of the lower umbrella disc 102 has a protruding insertion rod 1021, the insertion rod 1021 is in a rod shape with a polygonal cross section, the cross section of the insertion rod 1021 may be hexagonal or pentagonal. etc., and the insertion rod 1021 is inserted into the insertion sleeve 104 and fixed in the circumferential direction. A plurality of short ribs 107 arranged sequentially in the circumferential direction are hinged to the lower umbrella disc 102, the short ribs 107 are disposed in one-to-one correspondence to the long ribs 106, and upper ends of the short ribs 107 are hinged to middles of the long ribs 106. A connecting rod 103 is further hinged to the lower umbrella disc 102, and an upper end of the connecting rod 103 is hinged to the connecting seat 12. The upper end of the upper umbrella disc 101 is further provided with a top umbrella rib 108, and umbrella cloth is installed on the long ribs 106 and the top umbrella rib 108 respectively so as to form a double-layer umbrella.

As shown in FIG. 2, the clamping seat 3 is a member with a U-shaped cross section formed by extending two side wings 35 to the same side on the basis of a tubular member, and the fixed rod 6 is clamped between the two side wings 35 of the clamping seat 3, fits and abuts against an inner side of the clamping seat 3, and then is fixedly connected with the clamping seat 3 through a fastener 4.

As shown in FIG. 2 and FIG. 4, the inner side of the clamping seat 3 is of a structure where the middle part protrudes into a space between the two side wings 35, the inner side of the clamping seat 3 has a protruding planar abutment surface 31, the fixed rod 6 has a flat support wall 61, and the abutment surface 31 fits and abuts against the support wall 61. The inner side of the clamping seat 3 has arc-shaped limiting surfaces 32 located on two sides of the abutment surface 31, the fixed rod 6 has limiting portions 62 disposed in a vertical direction and located on two sides of the support wall 61, the two limiting portions 62 are spaced apart, outer side walls of the limiting portions 62 fit and abut against the two limiting surfaces 32, and outer ends of the two limiting portions 62 are disposed close to each other.

As shown in FIG. 2 and FIG. 4, a closed end of the clamping seat 3 is a hollow tubular installation portion 33, the installation portion 33 internally has a plurality of plate-shaped reinforcing walls 34 parallel to each other, the upper ends of the pull rods 2 are hinged to the installation portion 33, the reinforcing walls 34 are all disposed parallel to the pull rods 2, and first needle roller bearings 5 are disposed between the pull rods 2 and the installation portion 33. The pull rods 2 and the clamping seat 3 are hinged through a first bolt 13 and a first nut 14. The first bolt 13 penetrates through a first pull rod, one of the first needle roller bearings 5, a first side wall of the installation portion 33, the reinforcing walls 34, a second side wall of the installation portion 33, the other first needle roller bearing 5, and a second pull rod, and then is in threaded connection with the first nut 14. The first nut 14 is tightened to stabilize a connection between the pull rods 2 and the clamping seat 3. A distance between the two side wings 35 of the clamping seat 3 is greater than a distance between the first side wall and the second side wall of the installation portion 33, that is, the two side wings 35 of the clamping seat 3 protrude outward from the first side wall and the second side wall of the installation portion 33, which can improve the structural strength of the clamping seat 3. The fastener 4 consists of a second bolt and a second nut. The second bolt penetrates through a first side wing, a first side wall of the fixed rod 6, a second side wall of the fixed rod 6, and a second side wing, and then is in threaded connection with the second nut. The second nut is tightened to stabilize a connection between the fixed rod 6 and the clamping seat 3. There are two fasteners 4 arranged vertically to improve the stability of the connection between the fixed rod 6 and the clamping seat 3.

As shown in FIG. 1, FIG. 3, and FIG. 5, the connecting sleeve 7 is in a U shape, and the connecting sleeve 7 is clamped upward in the middle of the diagonal rod 1. The two pull rods 2 are respectively located on two sides of the connecting sleeve 7 and are hinged to the diagonal rod 1 through a third bolt 15 and a third nut 16. Counter bores 71 are formed in two side walls of the connecting sleeve 7, the counter bores 71 are internally provided with second needle roller bearings 52, as well as first support gaskets 51 and second support gaskets 53 which are located on two sides of the second needle roller bearings 52, and the first support gaskets 51 abut against the side walls of the corresponding pull rods 2.

As shown in FIG. 1, FIG. 3 and FIG. 6, the handle shell 8 is slidably connected to the fixed rod 6, a lower end of the diagonal rod 1 is hinged to the handle shell 8 through a hinge bolt 9 and a nut 91, installation counterbores 81 are formed in two side walls of the handle shell 8, the installation counterbores 81 are internally provided with third needle roller bearings 54 and third support gaskets 55 located on two sides of the third needle roller bearings 54, and the corresponding third needle roller bearings 54 and third support gaskets 55 are compressed in the installation counterbores 81 through the hinge bolt 9 and the nut 91.

As shown in FIG. 7, FIG. 8, and FIG. 9, an inner hole of the insertion sleeve 104 is a polygonal hole that is in clearance fit with the insertion rod 1021, and the inner hole of the insertion sleeve 104 is a hexagonal hole or a pentagonal hole. The insertion rod 1021 is capable of being inserted into the inner hole of the insertion sleeve 104 and fixed in the circumferential direction. Edges of the insertion rod 1021 are all disposed slantly outward from top to bottom. An upper end of the insertion sleeve 104 has an annular limiting stop edge 1041, and the upper end of the insertion rod 1021 is capable of abutting against the limiting stop edge 1041. The lower end of the middle rod 105 has a conical plug 1051 that gradually decreases from top to bottom, a central hole 1022 is formed in an upper end surface of the insertion rod 1021, and the plug 1051 is capable of being inserted into the central hole 1022. The arrangement of the plug 1051 has a guiding and positioning function, which facilitates the insertion of the insertion rod 1021 into the insertion sleeve 104.

As shown in FIG. 10 and FIG. 11, the connecting seat 12 is roughly in an H shape, and the connecting seat 12 includes a connecting block 121, two upper connecting plates 122 formed by protruding upwards at an upper end of the connecting block 121, and two lower connecting plates 123 formed by protruding downwards at a lower end of the connecting block 121. A distance between the two upper connecting plates 122 is greater than a distance between the two lower connecting plates 123. The diagonal rod 1 is embedded between the two upper connecting plates 122 and is fixedly connected with the two upper connecting plates 122 through rivets, and the connecting rod 103 is embedded between the two lower connecting plates 123 and forms a hinge. Outer side surfaces of the lower connecting plates 123 are both provided with counter bores, and the counter bores are internally provided with fourth needle roller bearings 56 and fourth support gaskets 57 located on two sides of the fourth needle roller bearings 56. A fourth bolt 17 penetrates through a first upper connecting plate, the fourth needle roller bearing 56 and the fourth support gaskets 57 on the first upper connecting plate, the connecting rod 103, a second upper connecting plate, and the fourth needle roller bearing 56 and the fourth support gaskets 57 on the second upper connecting plate, and then is in threaded connection with a fourth nut 18. The connecting rod 103 is hinged to the connecting seat 12 through the fourth bolt 17 and the fourth nut 18.

As shown in FIG. 12 and FIG. 13, the lower end of the upper umbrella disc 101 has a protruding connecting tube 1011, the connecting seat 12 is hinged to the connecting tube 1011, and an outer side surface of the connecting tube 1011 is a hexagonal prism surface. An outer side of the middle rod 105 is sleeved with the connecting tube 1011. The installation seat 11 is in a Y shape, the connecting tube 1011 is embedded between two fork arms 111 of the installation seat 11 and hinged to the fork arms 111, and an end handle 112 of the installation seat 11 is inserted into the upper end of the diagonal rod 1 and fixed. Outer side surfaces of the fork arms 111 are both provided with counter bores, and the counter bores are both internally provided with needle roller bearings and support gaskets located on two sides of the needle roller bearings. A bolt penetrates through a first fork arm, the needle roller bearing and the support gaskets on the first fork arm, the connecting tube 1011, a second fork arm, and the needle roller bearing and the support gaskets on the second fork arm, and then is in threaded connection with a nut. The installation seat 11 is hinged to the connecting tube 1011 through the bolt and the nut. The end handle 112 of the installation seat 11 at an end wall close to one end of the connecting tube 1011 has a cavity.

In addition, the fixed rod 6 may be a stand column independently disposed on a ground base or a profile fixed on a wall, so that the Roman umbrella can be disposed and used independently or used as a wall-mounted Roman umbrella, thereby improving practicality of the Roman umbrella.

Embodiment II

A structure in Embodiment I, except for the fixed rod 6, is referred to as an umbrella frame. The content of this embodiment is basically the same as that of Embodiment I, with the difference being that: left and right sides of the fixed rod 6 are both provided with the above umbrella frames. In different usage environments, by connecting the umbrella frames to the left and right sides of the fixed rod, a usage area of the Roman umbrella is increased, and practical performance of the Roman umbrella is improved.

The specific embodiments described herein are merely illustrative of the spirit of the present disclosure. A person skilled in the art to which the present disclosure pertains can make various modifications, additions, or similar substitutions to the specific embodiments described, without departing from the spirit and scope of the present disclosure defined by the appended claims.

REFERENCED PARTS

1. Diagonal rod; 2. Pull rod; 3. Clamping seat; 31. Abutment surface; 32. Limiting surface; 33. Installation portion; 34. Reinforcing wall; 35. Side wing; 4. Fastener; 5. First needle roller bearing; 51. First support gasket; 52. Second needle roller bearing; 53. Second support gasket; 54. Third needle roller bearing; 55. Third support gasket; 56. Fourth needle roller bearing; 57. Fourth support gasket; 6. Fixed rod; 61. Support wall; 62. Limiting portion; 7. Connecting sleeve; 71. Counter bore; 8. Handle shell; 81. Installation counterbore; 9. Hinge bolt; 91. Nut; 10. Umbrella skeleton; 101. Upper umbrella disc; 1011. Connecting tube; 102. Lower umbrella disc; 1021. Insertion rod; 1022. Central hole; 103. Connecting rod; 104. Insertion sleeve; 1041. Limiting stop edge; 105. Middle rod; 1051. Plug; 106. Long rib; 107. Short rib; 108. Top umbrella rib; 11. Installation seat; 111. Fork arm; 112. End handle; 12. Connecting seat; 121. Connecting block; 122. Upper connecting plate; 123. Lower connecting plate; 13. First bolt; 14. First nut; 15. Third bolt; 16. Third nut; 17. Fourth bolt; and 18. Fourth nut.