Treadmill Capable Of Reducing Column Tipping Probability

Description

FIELD OF THE INVENTION

The invention relates to the field of treadmills, and in particular to a treadmill capable of reducing the column tipping probability.

BACKGROUND OF THE INVENTION

The treadmill is a common fitness equipment in homes and gyms. It is the simplest type of home fitness equipment today and the best choice for home fitness equipment.

A Chinese patent with announcement number CN216222762U discloses a folding treadmill, including a treadmill body, column hingedly arranged on both sides of the treadmill body, and a locking structure arranged between the column and the treadmill body to limit the rotation of the column relative to the treadmill body. The locking structure includes a rotating shaft that is rotatably arranged on the treadmill body and passes through the column at both ends, a fixing plate that is concentrically fixed with the rotating shaft on both sides of the treadmill body, a movable plate that is concentrically fixed with the rotating shaft on the column, and a limiting component that limits the rotation of the movable plate relative to the fixing plate. The limitation or release of the limiting structure is controlled by the movable plate approaching or moving away from the fixed plate, a control mechanism for controlling the movable plate to synchronously approach or move away from the fixing plate is arranged between the rotating shaft and the column, the limiting component includes a first gear surface arranged on one side of the fixing plate close to the main body and a second gear surface arranged on one side of the movable plate close to the treadmill body, the second gear surface is meshed with or separated from the first gear surface, the rotating shaft can rotate and slide relative to the treadmill body; the control mechanism includes a limiting block arranged at one end of the rotating shaft, a mounting block arranged at the other end of the rotating shaft, and a driving component arranged between the mounting block and the column close to the mounting block is provided for increasing or decreasing the spacing between the mounting block and the column; the driving component includes a fixing block arranged on the side of the column close to the mounting block, a protrusion arranged on the side of the fixing block away from the column, a pressing block arranged on the side of the mounting block close to the fixing block and matched with the protrusion, and a guiding block arranged on the mounting block and matched with the pressing block; one side of the guide block close to the fixing block is arranged in an inclined surface along the circumferential direction of the rotating shaft, and the distance from the mounting block gradually decreases from the side close to the mounting block to the side away from the mounting block, the maximum distance between the inclined surface and the mounting block is equal to the height of the pressing block. During the rotation of the mounting block, the protrusion is pressed and slidably matched with the inclined surface.

In the above structure, when the mounting block on the rotating shaft rotates until the inclined surface thereon abuts against the protrusion on the fixing block of the column, the second gear surface arranged on the movable gear plate can be separated from the first gear surface on the fixing gear plate, thereby the column can rotate at this time. When people is running on the treadmill, vibration will be generated, and the vibration on the treadmill will also act on the mounting block at the bottom of the column, causing the deflection of the mounting block. If the mounting block deflects when people run on the treadmill, the inclined surface on the mounting block will abut against the protrusion on the fixing block. At this time, the column will flip downward due to gravity, thereby increasing the probability of danger when people exercise on the treadmill.

SUMMARY OF THE DISCLOSURE

The present invention aims at the disadvantage of the prior arts that when people is running on the treadmill, vibrations are generated, and the vibrations on the treadmill will also act on the mounting block at the bottom of the column, further causing the deflection of the mounting block. If the mounting block deflects when people run on the treadmill, the inclined surface on the mounting block will abut against the protrusion on the fixing block. At this time, the column will flip downward due to gravity, thereby increasing the probability of danger when people exercise on the treadmill.

In order to solve the above-mentioned problems, the present invention is provided by the following technical solutions:

A treadmill capable of reducing column tipping probability comprises a treadmill body, a rotatable column provided on both sides of the treadmill body via a rotating shaft, and a locking component for limiting the rotation of the column relative to the treadmill body, wherein the locking component comprises a fixing gear plate fixed to the treadmill body and a movable gear plate which can approach or move away from the fixing gear plate and is respectively provided on the opposite sides of the treadmill body and the column, the rotating shaft is rotatably inserted into the central hole of the fixing gear plate and the movable gear plate, a driving component which rotates forward and reversely synchronously with the rotating shaft is fixed to the end of the rotating shaft away from the treadmill body, the driving component can drive the movable gear plate to approach or move away from the fixing gear plate along with the forward and reverse rotation, a damping component for increasing the rotation resistance of the rotating shaft is arranged between the rotating shaft and the movable gear plate, the damping component comprises a pressing member elastically and telescopically arranged on the inner wall of the central hole of the movable gear plate, and an abutment plane which can be abutted by the pressing member is arranged on the outer wall of the rotating shaft.

By adopting the above technical solution, when the column is erected on both sides of the treadmill body, the pressing member arranged on the inner wall of the central hole of the movable gear plate can be telescopically abutted against the abutment plane on the rotating shaft, the rotation damping of the rotating shaft will become larger, and the rotation probability of the driving component driven by rotating shaft will be reduced, so that the probability of the mutually meshed fixing gear plate and the movable gear plate being separated from each other is reduced, thereby reducing the column tipping probability due to the vibration generated by people running on the treadmill.

Preferably, the pressing member comprises an accommodating hole arranged on the inner wall of the central hole of the movable gear plate, a ball telescopically arranged on the accommodating hole, and an elastic member that drives the ball to elastically press against the abutment plane.

By adopting the above technical solution, the aforementioned ball can abut against the surface of the rotating shaft inserted into the central hole of the movable gear plate when it is installed in the accommodating hole. When the ball abuts against the abutment plane on the rotating shaft, the ball will be pushed by the elastic member and partially extend out of the accommodating hole and press against the abutment plane on the rotating shaft, at this time, the rotation damping of the rotating shaft will increase, thereby reducing the column tipping probability due to the vibration generated by people running on the treadmill.

Preferably, the accommodating hole passes through the outer wall of the movable gear plate, one end of the accommodating hole close to the outer wall of the movable gear plate is provided with a pressing member that presses against the elastic member and the ball.

By adopting the above technical solution, the accommodating hole is arranged to pass through the outer wall of the movable gear plate, so that the ball and the pressing member can be easily installed in the accommodating hole.

Preferably, the accommodating hole is provided as a threaded through hole, and the pressing member is an push bolt that matched with the threaded through hole.

By adopting the above technical solution, the push bolt can be provided to block the end of the accommodating hole close to the outer wall of the movable gear plate when the elastic member and the ball are installed in the accommodating hole. At the same time, the push bolt can also squeeze the elastic member installed in the accommodating hole after it is screwed into the accommodating hole, so that the elastic member is in a state where the ball is ejected to partially extend out of the accommodating hole after the ball retracts.

Preferably, a blocking component for preventing the ball detaching from the accommodating hole is provided at one end of the accommodating hole close to the rotating shaft.

Preferably, the blocking component includes a blocking ring protruding from one end of the accommodating hole close to the rotating shaft, and the ball partially passes through the blocking ring and abuts against the abutment plane.

By adopting the above technical solution, the blocking ring can block the ball when the ball is installed in the accommodating hole, so that the ball can only partially extend out of the blocking ring and abut against the splicing plane on the rotating shaft, thereby facilitating the installation of the ball.

Preferably, the threaded section is provided on the end of the rotating shaft away from the driving component, the threaded section is threadedly engaged with a locking nut after passes through the fixing gear plate 4, and the locking nut is provided with an anti-drop component for limiting the rotation of the locking nut relative to the threaded section.

By adopting the above technical solution, the locking nut is screwed into the threaded section of the rotating shaft away from the driving component at one end, which can reduce the probability of the rotating shaft dropping out of the fixing gear plate and the movable gear plate, in addition, the anti-drop component arranged on the locking nut can reduce the probability of the locking nut coming out of the threaded section on the rotating shaft, thereby further reducing the probability of the rotating shaft dropping out of the fixing gear plate and the movable gear plate.

Preferably, the anti-drop component comprises a threaded hole vertically opened on the outer wall of the locking nut and a pressure bolt cooperating with the threaded hole and abutting against the threaded section.

By adopting the above technical solution, the pressure bolt can be screwed into the threaded hole on the locking nut after the locking nut is screwed into the threaded section on the rotating shaft, thereby applying pressure to the threaded section of the rotating shaft and reducing the probability of the locking nut rotating relative to the threaded section.

Preferably, the driving component includes a driving handle located at an end of the movable gear plate away from the fixing gear plate and fixedly connected to the rotating shaft, a pressing inclined surface and a pressing block are arranged on the opposite side of the driving handle and the movable gear plate respectively and are in a mutually abutting state, a pressing plane is provided at one end of the pressing inclined surface to press against the pressing block when the movable gear plate and the fixing gear plate are meshed.

By adopting the above technical solution, when the driving handle is rotated until the pressing inclined surface thereon abuts against the pressing block on the movable gear plate, the pressing block can slide on the pressing inclined surface, the movable gear plate can be separated from the fixing gear plate, and the column can be rotated; when the driving handle is rotated until the pressing plane thereon abuts against the pressing block on the movable gear plate, the pressing block will press against the pressing inclined surface, and the movable gear plate will be meshed with the fixing gear plate, and the column is fixed without rotation.

Preferably, the elastic member is a spring.

By adopting the above technical solution, the spring can be arranged to drive the balls to partially extend out of the accommodating hole and abut against the abutment plane of the rotating shaft when the balls on the splicing plane on the rotating shaft face each other.

The present invention has a significant beneficial effect by adopting the above technical solution: the pressing member arranged on the inner wall of the central hole of the movable gear plate can be telescopically abutted against the abutment plane on the rotating shaft when the column is erected on both sides of the treadmill body, at this time, the rotation damping of the rotating shaft will become larger, and the rotation probability of the driving component driven by rotating shaft will be reduced, so that the probability of the mutually meshed fixing gear plate and the movable gear plate being separated from each other is reduced, thereby reducing the column tipping probability due to the vibration generated by people running on the treadmill.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an axonometric view of a treadmill capable of reducing column tipping probability in the present embodiment.

FIG. 2 is a disassembled view of the driving handle and the column in this embodiment.

FIG. 3 is an enlarged view of point A in FIG. 2.

FIG. 4 is an exploded view of the locking component, the driving component, and the anti-drop component in this embodiment.

FIG. 5 is an enlarged view of point B in FIG. 4.

FIG. 6 is a front view of the locking component, the driving component, and the anti-drop component in this embodiment.

FIG. 7 is a cross-sectional view of point C-C in FIG. 6.

FIG. 8 is an exploded view of the damping component and the movable gear plate in this embodiment.

FIG. 9 is an enlarged view of point D in FIG. 8.

FIG. 10 is an exploded view of the damping component and the movable gear plate in this embodiment.

FIG. 11 is an axonometric view of the driving handle in this embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Other features, objects and advantages of the present invention will be more clearly and completely by the detailed description of the non-limiting embodiments with reference to the attached drawings (FIG. 1 to FIG. 11).

In one aspect, a treadmill capable of reducing column tipping probability, with reference to FIGS. 1 to 4, comprises a treadmill body 1, a rotatable column 2 provided on both sides of the treadmill body 1 via a rotating shaft 5, and a locking component for limiting the rotation of the column 2 relative to the treadmill body 1, wherein the locking component comprises a fixing gear plate 4 fixed to the treadmill body 1 and a movable gear plate 3 which can approach or move away from the fixing gear plate 4 and is respectively provided on the opposite sides of the treadmill body 1 and the column 2, the rotating shaft 5 is rotatably inserted into the central hole 6 of the fixing gear plate 4 and the movable gear plate 3, a driving component which rotates forward or reversely synchronously with the rotating shaft 5 is fixed to the end of the rotating shaft 5 away from the treadmill body 1, the driving component can drive the movable gear plate 3 to approach or move away from the fixing gear plate 4 along with the forward or reverse rotation, with reference to FIGS. 4 and 11, the driving component includes a driving handle 18 located at one end of the movable gear plate 3 away from the fixing gear plate 4 and fixedly connected to the rotating shaft 5, a pressing inclined surface 16 and a pressing block 19 are arranged on the opposite side of the driving handle 18 and the movable gear plate 3 respectively and are in a mutually abutting state, a pressing plane 17 is arranged at one end of the pressing inclined surface 16 to press against the pressing block 19 when the movable gear plate 3 and the fixing gear plate 4 are meshed, a damping component is arranged between the rotating shaft 5 and the movable gear plate 3 to increase the rotation resistance of the rotating shaft 5, and the damping component includes a pressing member elastically and telescopically arranged on the inner wall of the central hole 6 of the movable gear plate 3, and an abutment plane 15 which can be abutted by the pressing member is arranged on the outer wall of the rotating shaft 5.

Referring to FIGS. 6 to 10, the pressing member includes an accommodating hole 8 provided on the inner wall of the central hole 6 of the movable gear plate 3, a ball 7 telescopically arranged on the accommodating hole 8, and an elastic member that drives the ball 7 to elastically press against the abutment plane 15. The elastic member is a spring 9, the accommodating hole 8 passes through the outer wall of the movable gear plate 3, one end of the accommodating hole 8 close to the outer wall of the movable gear plate 3 is provided with a pressing member that presses against the elastic member and the ball 7, the accommodating hole 8 is provided as a threaded through hole, and the pressing member is an push bolt 10 matched with the threaded through hole. The end of the accommodating hole 8 close to the rotating shaft 5 is provided with a blocking component that prevent the ball 7 detaching from the accommodating hole 8, the blocking component includes a blocking ring 11 protruding from the accommodating hole 8 close to the rotating shaft 5, the ball 7 partially passes through the blocking ring 11 and abuts against the abutment plane 15.

Referring to FIGS. 4 and 5, a threaded section 14 is provided on the end of the rotating shaft 5 away from the driving component, the threaded section 14 is threadedly engaged with a locking nut 12 after passing through the fixing gear plate 4, the locking nut 12 is provided with an anti-drop component for limiting the rotation of the locking nut 12 relative to the threaded section 14, the anti-drop component includes a threaded hole 20 vertically opened on the outer wall of the locking nut 12 and a pressure bolt 13 that cooperates with the threaded hole 20 and abuts against the threaded section 14.

Specifically, the usage process of the column is: when the rotating of column 2 is needed, firstly rotate the driving handle 18 so as to drive the rotating shaft 5 to rotate, when the driving handle 18 rotates, the pressing block 19 on the movable gear plate 3 will gradually move from the pressing plane 17 on the driving handle 18 to the pressing inclined surface 16, then when the pressing block 19 abuts against the pressing inclined surface 16, the movable gear plate 3 can be separated from the fixing gear plate 4, the column 2 can be rotated relative to the treadmill body 1 and stand upright on both sides of the treadmill body 1, at the same time, the rotating shaft 5 will squeeze the ball 7 in the movable gear plate 3 to partially retract it into the accommodating hole 8, and the ball 7 will squeeze the spring 9 to shrink at this time; when the column 2 is rotated and upright on both sides of the treadmill body 1, the driving handle 18 can be rotated again at this time, then the driving handle 18 is rotated until the pressing plane 17 thereon abuts against the pressing block 19 on the movable gear plate 3, the movable gear plate 3 will approach and meshed with the fixing gear plate 4, the rotating shaft 5 will also be driven by the driving handle 18 to rotate until the abutment plane 15 thereon is opposite to the ball 7, at this time, the contracted spring 9 will recover to eject part of the ball 7 out of the accommodating hole 8 and abut on the splicing plane, thereby increasing the rotation damping of the rotating shaft 5. In this way, the position of the column 2 will be limited, and the tipping probability of the column 2 due to the vibration generated by people on the treadmill body 1 will be reduced.

Hereinafter, embodiments of the present invention has been described in detail with reference to the accompanying drawings. While the description above refers to the particular embodiments of the present invention, it will be understood that many modifications may be made without departing from the spirit thereof. Any equivalent replacement or modification would fall within the protection scope of the present invention.