CN115289116A

CN115289116A - Anti-loosening mechanism, hoop device and foot rest

Info

Publication number: CN115289116A
Application number: CN202210614435.XA
Authority: CN
Inventors: 陆炜
Original assignee: Shenzhen Maxiaolu Technology Co ltd
Current assignee: Shenzhen Maxiaolu Technology Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-11-04

Abstract

The application provides a locking mechanism, use staple bolt device of this locking mechanism and use foot rest of this staple bolt device, the foot rest includes first pipe, can wear to locate the second pipe in the first pipe, can overlap the first external member of locating the second pipe, and the staple bolt device, the staple bolt device includes locking mechanism and locking mechanism, the trepanning has been seted up to the hoop spare, the one end of hoop spare is equipped with first flange, the other end is equipped with the second flange, and have the first opening that is linked together with the trepanning between first flange and the second flange, first hole, second hole and third hole are located on the first flange, the second flange is equipped with the fourth hole, locking mechanism includes hoop spare, first fastener and second fastener, the hoop spare is equipped with first hole, second hole and third hole that communicate with first hole, first fastener is equipped with the fixed column and locates the locking cap of fixed column one end, the lateral wall of locking cap is equipped with a plurality of recesses, the second fastener is located arbitrary towards the one end of locking cap in the recess for first fastener rotates or can't take out from the first hole.

Description

Anti-loosening mechanism, hoop device and foot rest

Technical Field

The application relates to the field of photographic equipment, in particular to a locking mechanism, a hoop device and a foot rest.

Background

In the prior art, a tripod of a camera is usually connected by a plurality of pipe sleeves to form a telescopic tripod structure, two adjacent pipe sleeves are usually connected and locked by a hoop, the hoop is connected with a handle through a bolt, and the hoop is tightened by rotating the handle. However, after the anchor ear is used for many times, the bolt is easy to loosen, and the bolt and the handle can fall off from the anchor ear for a long time, so that the two sections of pipe sleeves cannot be locked. Therefore, the existing anchor ear needs to be improved.

Disclosure of Invention

In order to solve the above problems, the present application provides a locking mechanism, a hoop device using the locking mechanism, and a foot stool using the hoop device.

The application is realized by the following technical scheme:

the application provides a locking mechanism, including hoop spare, first fastener and second fastener, hoop spare be equipped with first hole, with second hole and third hole that first hole communicates, the second hole with first hole site is on same axis, the axis of third hole with the axis of first hole is crossing, first fastener is equipped with the fixed column and locates the locking cap of fixed column one end, the fixed column can stretch into in the second hole, so as to incite somebody to action the locking cap is located in the first hole, the lateral wall of locking cap is equipped with a plurality of recesses, the second fastener can stretch into and be fixed in the third hole, just the second fastener orientation arbitrary is located to the one end of locking cap in the recess, in order to prevent first fastener breaks away from first hole.

Furthermore, the second fastener is provided with any convex part corresponding to the groove, the central axis of the third hole is vertically arranged on the central axis of the first hole, so that the second fastener is vertically arranged on the first fastener, and the convex part is clamped in the groove.

Further, the fixing cap is cylindrical.

Further, the side wall of the fixing cap is attached to the inner side wall of the hoop member in the first hole.

The application provides a staple bolt device, including locking mechanism and locking mechanism, the trepanning has been seted up to hoop spare, hoop spare's one end is equipped with first flange, and the other end is equipped with the second flange, just first flange with have between the second flange with the first opening that the trepanning is linked together, first hole the second hole reaches the third hole is located on the first flange, the second flange is equipped with the fourth hole, first fastener detachably wears to locate in proper order first hole the second hole the fourth hole and with locking mechanism fastening connection, locking mechanism is used for locking hoop spare, in order to incite somebody to action first opening reduces, simultaneously the trepanning reduces.

Further, locking mechanism include the connecting axle and with the connecting axle rotates the retaining member of connecting, the outer wall of retaining member is equipped with convex surface and plane, first fastener detachably wears to locate in proper order the first hole the second hole the fourth hole and with the connecting axle fastening connection, the retaining member connecting axle rotates relatively, with the convex surface or the plane butt in the second flange deviates from the one side of first flange, the convex surface butt in during the second flange, first opening reduces, simultaneously the trepanning reduces, the plane butt in during the second flange, first opening enlarges, simultaneously the trepanning enlarges.

Furthermore, the hoop device further comprises an elastic piece, wherein the elastic piece is arranged in the first opening, one end of the elastic piece is abutted to the first flange, the other end of the elastic piece is abutted to the second flange, the first fastener is detachably arranged in the first hole, the second hole, the elastic piece and the fourth hole in a penetrating mode in sequence, the elastic piece is fixedly connected with the connecting shaft, the plane is abutted to the second flange, the elastic piece drives the first opening to be enlarged, and meanwhile, the trepanning is enlarged.

Furthermore, the hoop device further comprises a rubber layer, a fixed groove is formed in one side, away from the first flange, of the second flange, the rubber layer is clamped in the fixed groove, and the convex surface or the plane abuts against the rubber layer.

Furthermore, one end of the hoop member is provided with a third flange, the other end of the hoop member is provided with a fourth flange, a second opening communicated with the trepanning is formed between the third flange and the fourth flange, the hoop device further comprises a third fastener and a female member, the third fastener penetrates through the third flange and the fourth flange and is tightly connected with the female member so as to reduce the second opening, and meanwhile, the hoop member is close to the trepanning of the third flange or the fourth flange and is reduced.

The application provides a staple bolt device, the foot rest includes first pipe, can wear to locate second pipe in the first pipe, can overlap and locate the first external member of second pipe and staple bolt device, the external diameter of first external member with the external diameter of first pipe equals, hoop cover is located first external member with first pipe, in order to incite somebody to action first pipe with second pipe fastening connection.

The beneficial effect of this application: the second pipe of the foot rest extends into the first pipe, the first sleeve is sleeved on the second pipe, and the hoop device is sleeved on the first sleeve and the first pipe. The one end that the fixed column of first fastener deviates from the locking cap wears to locate first hole, second hole, fourth hole in proper order and with locking mechanism fastening connection, and the staple bolt device passes through locking mechanism with first pipe and second pipe fastening connection or swing joint. The second fastener stretches into and is fixed in the third hole, and the recess of first fastener is located towards the one end of locking cap to the second fastener for first fastener is unable to rotate or is taken out from the first downthehole, thereby prevents that first fastener is not hard up, has avoided first fastener and locking mechanism to drop from the staple bolt device.

Drawings

FIG. 1 is an overall view of a horse of the present invention;

FIG. 2 is a connection diagram of the first pipe, the second pipe and the hoop device according to the present invention;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a view of the connection between the hoop apparatus and the first sleeve of the present invention;

FIG. 5 is an exploded view of FIG. 4;

FIG. 6 is an exploded view of the hoop apparatus of the present invention;

FIG. 7 is an exploded view in the other direction of FIG. 6;

FIG. 8 is an overall view of the hoop apparatus of the present invention, wherein the convex surface of the locking member abuts against the second flange;

FIG. 9 is an overall view of the hoop apparatus of the present invention, wherein the flat surface of the locking member abuts against the second flange;

fig. 10 is an overall view of the hoop device of the present invention.

The reference numerals in the figures are explained below:

1. a foot rest; 10. a first tube; 20. a second tube; 30. a first kit; 310. a convex strip; 320. an open slot; 40. a hoop device; 400. a locking mechanism; 410. a hoop member; 411. a first flange; 4111. a first hole; 4112. a second hole; 4113. a third aperture; 412. a second flange; 4121. fixing grooves; 4122. a fourth aperture; 414. a third flange; 415. a fourth flange; 416. Trepanning; 417. a first opening; 418. a second opening; 419. a third opening; 420. a first fastener; 421. a fixing cap; 4211. a groove; 422. fixing a column; 430. a second fastener; 431. a convex portion; 440. a locking mechanism; 441. a connecting shaft; 442. a locking member; 4421. a convex surface; 4422. a plane; 450. an elastic member; 460. a rubber layer; 470. a third fastener; 480. a female member.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, wherein the same or similar reference numerals refer to the same or similar elements or elements with the same or similar functions throughout. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the present embodiment are only used to explain the relative position relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions referred to as "first", "second", etc. in this application are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 10, the present application provides a foot rest 1, which can adjust the length of the foot rest 1, wherein the foot rest 1 includes a first tube 10, a second tube 20 capable of passing through the first tube 10, a first sleeve 30 capable of being sleeved on the second tube 20, and a hoop device 40. In one embodiment, the outer diameter of the first sleeve 30 is equal to the outer diameter of the first pipe 10, and when the first sleeve 30 is sleeved on the second pipe 20, the first sleeve 30 is parallel to the outer wall of the first pipe 10, so that the hoop device 40 can be conveniently disposed on the first sleeve 30 and the first pipe 10. Specifically, the second tube 20 extends into the first tube 10, the first sleeve 30 is sleeved on the second tube 20, the first sleeve 30 abuts against the first tube 10, and the hoop device 40 is sleeved on the first sleeve 30 and the first tube 10, so as to connect the first tube 10 and the second tube 20.

In one embodiment, the telescopic tube further comprises a third tube (not labeled) capable of being inserted into the second tube 20, and a second sleeve (not labeled) capable of being sleeved on the third tube, wherein the outer diameter of the second sleeve is equal to the outer diameter of the second tube 20, when the second sleeve is sleeved on the third tube, the first sleeve 30 is parallel to the outer wall of the first tube 10, so that the hoop device 40 can be conveniently arranged on the second sleeve and the second tube 20, and the second tube 20 and the third tube can be connected. The third tube and the second tube 20 are connected in the same manner as the second tube 20 and the first tube 10, and thus, a detailed description thereof will be omitted.

Referring to fig. 2 to 4 and 10, further, the present application provides a hoop apparatus 40 for fixedly or movably connecting a first pipe 10 and a second pipe 20, the hoop apparatus 40 includes a lock mechanism 400 provided by the present application, the lock mechanism 400 includes a hoop member 410, a first fastening member 420, and a second fastening member 430, the hoop member 410 is provided with a first hole 4111, a second hole 4112 and a third hole 4113 communicated with the first hole 4111, the second hole 4112 and the first hole 4111 are located on the same central axis, the diameter of the first hole 4111 is larger than that of the second hole 4112, the central axis of the third hole 4113 intersects the central axis of the first hole 4111, the first fastening member 420 is provided with a fixing post 422 and a fixing cap 421 provided at one end of the fixing post 422, a sidewall of the fixing cap 421 is provided with a plurality of grooves 4211, and the second fastening member 430 is provided with a protrusion 431 corresponding to the grooves 4211. In this embodiment, please refer to fig. 10, the first fastening member 420 is a bolt, the central axis of the third hole 4113 intersects the central axis of the first hole 4111, the diameter of the first hole 4111 is larger than the diameter of the second hole 4112, the diameter of the fixing cap 421 is larger than the diameter of the fixing post 422, the fixing post 422 of the first fastening member 420 can be disposed in the second hole 4112, the fixing cap 421 is disposed in the first hole 4111, the second fastening member 430 is a bolt, and the protrusion 431 of the second fastening member 430 is clamped in the groove 4211 of the fixing cap 421, so that the first fastening member 420 cannot rotate or move. Specifically, the central axis of third hole 4113 intersects the central axis of first hole 4111, one end of a fixing column 422 of first fastener 420, which deviates from fixing cap 421, sequentially passes through first hole 4111 and second hole 4112, so that fixing cap 421 is disposed in first hole 4111, one end of second fastener 430, which is provided with a protrusion 431, extends into third hole 4113, and second fastener 430 is in threaded connection with third hole 4113, so that protrusion 431 extends into groove 4211, protrusion 431 of second fastener 430 corresponds to groove 4211 of fixing cap 421, so that first fastener 420 cannot rotate or be taken out of first hole 4111, and therefore first fastener 420 is prevented from loosening and falling off from hoop member 410.

In other embodiments, to better prevent the first fastening member 420 from falling off the band member 410, the first fastening member 420 is threaded into the second hole 4112 to more firmly fix the first fastening member 420 to the band member 410, thereby better securing the first fastening member 420 to the band member 410 and preventing the first fastening member 420 from falling off the band member 410.

Referring to fig. 10, further, in order to more firmly clamp the protrusion 431 of the second fastening member 430 in the groove 4211 of the first fastening member 420, the central axis of the third hole 4113 is perpendicular to the central axis of the first hole 4111. In this embodiment, the fixing post 422 of the first fastening member 420 sequentially passes through the first hole 4111 and the second hole 4112, and the second fastening member 430 is threadedly connected to the third hole 4113 to vertically mount the second fastening member 430 on the first fastening member 420, so that the protrusion 431 of the second fastening member 430 is more firmly clamped in the groove 4211 of the first fastening member 420, and the first fastening member 420 cannot rotate or move, and thus the first fastening member 420 is better mounted on the hoop member 410, and the first fastening member 420 is prevented from loosening and falling off the hoop member 410.

In other embodiments, the central axis of the second hole 4112 is inclined to the central axis of the first hole 4111, the fixing post 422 of the first fastening member 420 sequentially passes through the first hole 4111 and the second hole 4112, the second fastening member 430 is threadedly coupled to the third hole 4113, and the protrusion 431 of the second fastening member 430 is captured in the groove 4211 of the first fastening member 420.

Referring to fig. 10, further, in order to more firmly locate the protrusion 431 of the second fastening member 430 in the groove 4211 of the first fastening member 420, the fixing cap 421 is cylindrical. In this embodiment, the fixing cap 421 is cylindrical, a plurality of grooves 4211 are formed on a sidewall of the fixing cap 421 along a circumferential direction of the fixing cap 421, and a central axis of the second fastening member 430 is perpendicular to the central axis of the fixing cap 421, so that the protrusions 431 of the second fastening member 430 are more firmly clamped in the grooves 4211 of the first fastening member 420.

Referring to fig. 4 and 10, further, in order to more easily clamp the protrusion 431 of the second fastening member 430 in the groove 4211 of the second fastening member 430, the sidewall of the fixing cap 421 fits on the inner sidewall of the hoop member 410 in the first hole 4111. In this embodiment, after the fastening member is screwed into the third hole 4113, the first fastening member 420 and the second fastening member 430 can be rotated simultaneously, and at this time, a plurality of grooves 4211 are formed on the side wall of the fixing cap 421, so that the protrusions 431 of the second fastening member 430 can be more easily caught in the grooves 4211 of the second fastening member 430.

Referring to fig. 2 to 6, in order to better connect or movably connect the first pipe 10 and the second pipe 20, the hoop device 40 further includes a locking mechanism 440, the hoop member 410 defines a sleeve hole 416, one end of the hoop member 410 defines a first flange 411, the other end of the hoop member 410 defines a second flange 412, a first opening 417 communicating with the sleeve hole 416 is formed between the first flange 411 and the second flange 412, the first hole 4111, the second hole 4112 and the third hole 4113 are formed in the first flange 411, and the second flange 412 defines a fourth hole 4122. In this embodiment, the second pipe 20 extends into the first pipe 10, the first sleeve 30 is sleeved on the second pipe 20, the first sleeve 30 moves to a joint between the first pipe 10 and the second pipe 20, the hoop member 410 is sleeved on the joint between the first pipe 10 and the first sleeve 30, the first fastening member 420 is sequentially inserted into the first hole 4111, the second hole 4112, and the fourth hole 4122 and is tightly connected with the locking mechanism 440, the second fastening member 430 is threadedly connected with the third hole 4113, the protrusion 431 of the second fastening member 430 is disposed in the groove 4211, and the locking mechanism 440 is configured to lock the hoop member 410 to reduce the first opening 417 and reduce the sleeve hole 416 of the hoop member 410, so as to tightly connect the first pipe 10 and the second pipe 20.

Referring to fig. 6 to 9, further, in order to better lock the hoop member 410 by the locking mechanism 440, the locking mechanism 440 includes a connecting shaft 441 and a locking member 442 rotatably connected to the connecting shaft 441, an outer wall of the locking member 442 is provided with a convex surface 4421 and a flat surface 4422, the first fastening member 420 is detachably disposed through the first hole 4111, the second hole 4112 and the fourth hole 4122 in sequence and is threadedly connected to the connecting shaft 441, and the locking member 442 can rotate relative to the connecting shaft 441 to abut the convex surface 4421 or the flat surface 4422 against a surface of the second flange 412 facing away from the first flange 411. In this embodiment, when the convex surface 4421 abuts against the second flange 412, the first opening 417 is reduced and the sleeve hole 416 is reduced, and when the plane 4422 abuts against the second flange 412, the first opening 417 is enlarged and the sleeve hole 416 is enlarged.

Referring to fig. 7 and 9, in order to better enlarge the sleeve hole 416, the hoop device 40 further includes an elastic member 450, the elastic member 450 is disposed in the first opening 417, and one end of the elastic member 450 abuts against the first flange 411, and the other end abuts against the second flange 412. In this embodiment, the first fastening member 420 is sequentially inserted into the first hole 4111, the second hole 4112, the elastic member 450, and the fourth hole 4122 and is threadedly connected to the connecting shaft 441, when the plane 4422 abuts against the second flange 412, the elastic member 450 drives the first opening 417 to expand, and the sleeve hole 416 expands, so that the second tube 20 moves relative to the first tube 10 to elongate or shorten the foot rest 1.

Referring to fig. 7 and 9, further, in order to prolong the service life of the hoop member 410, the hoop device 40 further includes a rubber layer 460, a fixing groove 4121 is formed on a surface of the second flange 412 facing away from the first flange 411, and the rubber layer 460 is clamped in the fixing groove 4121. In this embodiment, the convex surface 4421 or the flat surface 4422 of the locking member 442 abuts against the rubber layer 460, so as to prevent the locking member 442 from directly abutting against the second flange 412 of the hoop member 410 for friction, thereby prolonging the life of the hoop member 410 and protecting the appearance of the hoop member 410.

Referring to fig. 5 and 6, in order to better fit the hoop member 410 on the first pipe 10 and the second pipe 20, one end of the hoop member 410 is provided with a third flange 414, the other end is provided with a fourth flange 415, and a second opening 418 communicating with the sleeve hole 416 is formed between the third flange 414 and the fourth flange 415, and the hoop device 40 further includes a third fastening member 470 and a female member 480. In this embodiment, the third fastening member 470 is a bolt, the female member 480 is a nut, and the third fastening member 470 is inserted through the third flange 414 and the fourth flange 415 and is threadedly coupled with the female member 480 to reduce the second opening 418, and simultaneously reduce the sleeve hole 416 of the hoop member 410 near the third flange 414 or the fourth flange 415.

Referring to fig. 4 and 5, further, in order to clamp the first sleeve 30 in the sleeve hole 416 of the hoop member 410, the first sleeve 30 is provided with a protruding strip 310 on an outer wall facing the first pipe 10, the hoop member 410 is provided with a third opening 419, the third opening 419 is located between the first flange 411 and the third flange 414, the third opening 419 is also located between the second flange 412 and the fourth flange 415, the first sleeve 30 is arranged in the sleeve hole 416, and the protruding strip 310 is arranged in the third opening 419 to clamp the first sleeve 30 in the sleeve hole 416 of the hoop member 410.

Referring to fig. 2 and 5, further, in order to tightly attach the first sleeve 30 to the second tube 20, so that the second tube 20 cannot move relative to the first sleeve 30, the first sleeve 30 is provided with a plurality of open grooves 320. In the present embodiment, the first sleeve 30 is clamped in the sleeve hole 416 of the hoop member 410, when the sleeve hole 416 of the hoop member 410 is reduced, the first sleeve 30 is pressed by the hoop member 410 on the inner wall of the sleeve hole 416, and the opening grooves 320 make the first sleeve 30 abut inwards and tightly fit with the second tube 20, so that the second tube 20 cannot move relative to the first sleeve 30.

Referring to fig. 1 to 10, in the specific implementation process of the present application, the second pipe 20 extends into the first pipe 10, the first sleeve 30 is sleeved on the second pipe 20, the first sleeve 30 abuts against the first pipe 10, the first sleeve 30 and the first pipe 10 pass through the trepanning 416 of the hoop 410, one end of the first sleeve 30 abuts against one end of the first pipe 10, the protruding strip 310 of the first sleeve 30 is disposed in the third opening 419 of the hoop 410, so that the first sleeve 30 is clamped in the trepanning 416 of the hoop 410, the first pipe 10 is disposed in the trepanning 416 at the third flange 414 and the fourth flange 415 of the hoop 410, the third fastener 470 is disposed in the third flange 414 and the fourth flange 415 and is in threaded connection with the female 480, the third fastener 470 is in threaded connection with the female 480, the third flange 414 and the fourth flange 415 move in opposite directions, so that the second opening 418 is reduced, and the hoop 410 is close to the trepanning 416 of the third flange 414 or the fourth flange 415, so as to reduce the first sleeve 10 and connect the first pipe 410. The first sleeve 30 is located in the sleeve hole 416 at the first flange 411 and the second flange 412 of the hoop member 410, the first fastening member 420 sequentially passes through the first hole 4111, the second hole 4112, the resilient member 450, the fourth hole 4122, the rubber layer 460 and is threadedly connected to the connecting shaft 441, the second fastening member 430 is threadedly connected to the third hole 4113, and the protrusion 431 of the second fastening member 430 extends into any one of the grooves 4211 of the first fastening member 420 in the fixing cap 421, so that the first fastening member 420 cannot be rotated or removed from the first hole 4111, thereby firmly fixing the first fastening member 420 to the hoop member 410. When the convex surface 4421 of the locking member 442 abuts against the second flange 412, the first flange 411 and the second flange 412 move in opposite directions to reduce the first opening 417, and at the same time, the collar 410 is reduced close to the first flange 411 or the second flange 412, so that the first sleeve 30 and the collar 410 are tightly connected, the first sleeve 30 is pressed by the collar 410, so that the first sleeve 30 and the second tube 20 are tightly attached, the second tube 20 cannot move relative to the first sleeve 30, at this time, the second tube 20 cannot move relative to the first tube 10, and the first tube 10 and the second tube 20 of the stand 1 are tightly connected. When the plane 4422 of the locking member 442 abuts against the second flange 412, the elastic member 450 urges the first flange 411 and the second flange 412 to move in opposite directions, so as to expand the first opening 417 and simultaneously expand the hoop member 410 close to the sleeve hole 416 of the first flange 411 or the second flange 412, and at this time, the second tube 20 can move relative to the first sleeve 30, and the second tube 20 can move relative to the first tube 10, so as to lengthen or shorten the foot rest 1.

By arranging the protrusion 431 of the second fastening member 430 in any one of the grooves 4211 of the fixing cap 421, the first fastening member 420 is not loosened whether the hoop member 410 is pressed by the locking member 442 multiple times or the elastic member 450 forces the first flange 411 and the second flange 412 to move in opposite directions multiple times, thereby preventing the first fastening member 420 from falling off the hoop member 410.

Of course, the present application may have other embodiments, and based on the embodiments, those skilled in the art may obtain other embodiments without any creative effort, and all of them fall within the protection scope of the present application.

Claims

1. A loosening prevention mechanism, comprising:

the hoop is provided with a first hole, a second hole and a third hole, the second hole is communicated with the first hole, the second hole and the first hole are positioned on the same central axis, and the central axis of the third hole is intersected with the central axis of the first hole;

the first fastener is provided with a fixing column and a fixing cap arranged at one end of the fixing column, the fixing column can extend into the second hole so as to arrange the fixing cap in the first hole, and the side wall of the fixing cap is provided with a plurality of grooves;

and the second fastening piece can extend into and be fixed in the third hole, and one end of the second fastening piece facing the fixing cap is arranged in any one groove so as to prevent the first fastening piece from being separated from the first hole.

2. The anti-loosening mechanism according to claim 1, wherein the second fastening member is provided with a convex portion corresponding to any one of the grooves, and the central axis of the third hole is perpendicular to the central axis of the first hole, so that the second fastening member is perpendicular to the first fastening member, and the convex portion is clamped in the groove.

3. The anti-loosening mechanism of claim 1 or 2, wherein the fixing cap is cylindrical.

4. The anti-loosening mechanism of claim 3, wherein the sidewall of the retaining cap fits over the inner sidewall of the hoop member in the first bore.

5. A hoop device, comprising a locking mechanism and the anti-loose mechanism as claimed in any one of claims 1 to 4, wherein the hoop member is provided with a trepan, one end of the hoop member is provided with a first flange, the other end of the hoop member is provided with a second flange, and a first opening communicated with the trepan is arranged between the first flange and the second flange;

the first hole, the second hole, and the third hole are disposed on the first flange;

the second flange is provided with a fourth hole;

the first fastener is detachably arranged in the first hole, the second hole and the fourth hole in a penetrating mode in sequence and is fixedly connected with the locking mechanism, the locking mechanism is used for locking the hoop piece, so that the first opening is reduced, and meanwhile the trepanning is reduced.

6. The hoop device as claimed in claim 5, wherein the locking mechanism includes a connecting shaft and a locking member rotatably connected to the connecting shaft, and an outer wall of the locking member is provided with a convex surface and a flat surface;

the first fastener is detachably arranged in the first hole, the second hole and the fourth hole in a penetrating mode in sequence and is fixedly connected with the connecting shaft;

the locking piece can rotate relative to the connecting shaft so as to enable the convex surface or the plane to abut against one surface, away from the first flange, of the second flange;

when the convex surface abuts against the second flange, the first opening is reduced, the trepan boring is reduced, and when the plane abuts against the second flange, the first opening is enlarged, and the trepan boring is enlarged.

7. The hoop device as claimed in claim 6, further comprising an elastic member, wherein the elastic member is disposed in the first opening, and one end of the elastic member abuts against the first flange and the other end abuts against the second flange;

the first fastener is detachably arranged in the first hole, the second hole, the elastic piece and the fourth hole in a penetrating mode in sequence and is fixedly connected with the connecting shaft;

when the plane abuts against the second flange, the elastic piece drives the first opening to expand, and meanwhile, the trepanning hole expands.

8. The hoop device as claimed in claim 6, wherein the hoop device further comprises a rubber layer, a fixing groove is formed in one side of the second flange, which is away from the first flange, and the rubber layer is clamped in the fixing groove;

wherein the convex surface or the plane is abutted against the rubber layer.

9. The hoop apparatus as claimed in claim 5, wherein the hoop member has a third flange at one end and a fourth flange at the other end, and a second opening communicating with the trepan is provided between the third flange and the fourth flange, the hoop apparatus further comprises a third fastener and a female member;

the third fastener penetrates through the third flange and the fourth flange and is tightly connected with the female part so as to reduce the second opening, and meanwhile, the trepanning of the hoop close to the third flange or the fourth flange is reduced.

10. A foot rest, wherein the foot rest comprises a first pipe, a second pipe capable of being penetrated in the first pipe, a first sleeve capable of being sleeved on the second pipe, and the hoop device as claimed in any one of claims 5 to 8;

the outer diameter of the first sleeve is equal to the outer diameter of the first tube;

the hoop is sleeved on the first sleeve and the first pipe so as to tightly connect the first pipe and the second pipe.