Folding pedal and bicycle

Abstract

The utility model relates to the technical field of bicycles, and particularly discloses a folding pedal and a bicycle, the folding pedal comprises a crank, a connecting piece, a limiting mechanism and a pedal; one end of the crank is used for being connected with a bicycle, the other end of the crank is provided with a connecting column, a limiting hole is formed in the connecting column, and the axis of the limiting hole is perpendicular to the axis of the connecting column. The connecting piece comprises a connecting pipe and a guide pipe which are communicated with each other, and the connecting column is rotatably sleeved with the connecting pipe; the pedal is provided with a connecting rod, the connecting rod is coaxially installed in the guide pipe, the connecting rod can slide in the axial direction of the guide pipe, the pedal can have a supporting state and a folding state by pulling the connecting rod, when the pedal is in the supporting state, the end of the connecting rod is inserted into the limiting hole of the connecting column to limit rotation of the connecting pipe, and when the pedal is in the folding state, the end of the connecting rod is inserted into the limiting hole of the connecting column to limit rotation of the connecting pipe. The end part of the connecting rod is accommodated in the guide pipe so as to release the rotation limitation on the connecting pipe; the limiting mechanism is installed on the guide pipe, and the axial displacement of the connecting rod in the guide pipe can be limited through a limiting assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bicycle, especially a folding bicycle part. BACKGROUND

[0002] As a common means of transport, the pedal structure is an important part of the bicycle, which provides power for the bicycle through the pedal to drive the wheel to rotate, and then realizes the riding of the bicycle. In order to facilitate storage, folding bicycles appear on the market, and how to fold the pedal becomes a problem. Therefore, a kind of driving system and bicycle with the patent authorization announcement number CN219192467U is disclosed, which specifically discloses the connection mode of special-shaped connecting hole and special-shaped rod between pedal and crank, and then the limiting locking is carried out through elastic sheet. The above structure is relatively complex, which is not conducive to promotion. UTILITY MODEL CONTENTS

[0003] Therefore, the utility model provides a kind of folding pedal and bicycle, to solve the technical problem that the structure of folding pedal in prior art is complex and not conducive to promotion.

[0004] To achieve one or part or all of the above purposes or other purposes, the utility model provides a kind of folding pedal, including: crank, connecting piece, limiting mechanism and pedal;

[0005] One end of the crank is used to connect the bicycle, the other end of the crank is provided with connecting column, and limiting hole is arranged on the connecting column;

[0006] The connecting piece includes connecting pipe and guide pipe in communication, one end of the guide pipe is fixed to the side wall of the connecting pipe, and the connecting pipe is rotatably sleeved on the connecting column;

[0007] The pedal is provided with connecting rod, the connecting rod is coaxially installed in the guide pipe, and the connecting rod can slide along the axial direction of the guide pipe, and pulling the connecting rod can make the pedal have supporting state and folding state, when pedal is in supporting state, the end of connecting rod is inserted into the limiting hole of connecting column to limit the rotation of connecting pipe, when pedal is in folding state, the end of connecting rod is stored in the guide pipe to release the rotation of connecting pipe;

[0008] The limiting mechanism is installed on the guide pipe, and the axial displacement of the connecting rod in the guide pipe can be limited by the limiting assembly.

[0009] Preferably, the side wall of the connecting column is provided with locking plane, and the end of the connecting rod can be attached to the locking plane.

[0010] Preferably, the locking plane and the end of the connecting rod are provided with magnets that can be attracted to each other.

[0011] Preferably, the limiting mechanism comprises a ball, a sleeve, a reset spring and a fixing ring; the fixing ring is coaxially installed at one end of the guide pipe away from the connecting pipe; a mounting through hole is arranged on the pipe wall of the guide pipe;

[0012] The reset spring is sleeved on the outer wall of the guide pipe, one end of the reset spring abuts against the fixing ring, and the other end of the reset spring is used for connecting the sleeve;

[0013] The sleeve is slidably sleeved on the guide pipe, and the inner wall of the sleeve is provided with a ring step for abutting against the reset spring; the inner wall of the sleeve is further provided with an avoiding groove; sliding the sleeve can make the avoiding groove of the sleeve connect the mounting through hole;

[0014] The outer wall of the connecting rod is provided with a limiting groove; pulling the connecting rod can make the limiting groove connect the mounting through hole;

[0015] The ball is installed in the mounting through hole, and the diameter of the ball is greater than the thickness of the pipe wall of the guide pipe; the ball has a locking position and an unlocking position; when the ball is in the locking position, the inner side of the ball is embedded in the limiting groove, and the outer side of the ball abuts against the inner wall of the sleeve; when the ball is in the unlocking position, the inner side of the ball abuts against the outer wall of the connecting rod, and the outer side of the ball is embedded in the avoiding groove.

[0016] Preferably, the limiting mechanism further comprises a limiting pin; the outer wall of the connecting rod is provided with a guide groove extending along the axial direction of the connecting rod; the limiting pin is inserted into the pipe wall of the guide pipe, and the inner end of the limiting pin is inserted into the guide groove.

[0017] Preferably, the length of the guide groove is greater than or equal to the diameter of the connecting pipe.

[0018] Preferably, the sleeve is provided with a guide hole; the guide hole is arranged in a strip shape and extends along the axial direction of the sleeve; the outer end of the limiting pin is inserted into the guide hole.

[0019] Preferably, the ball, the mounting through hole and the limiting groove are each provided with a plurality of corresponding ones; the avoiding groove is an annular groove structure arranged on the inner wall of the sleeve; the limiting pin, the guide hole and the guide groove are each provided with a plurality of corresponding ones.

[0020] Preferably, the limiting mechanism further comprises a pipe sleeve; the pipe sleeve is threadedly connected to the outer wall of the sleeve.

[0021] A bicycle comprising the folding pedal described above.

[0022] The embodiment of the utility model is implemented, and the following beneficial effects are achieved:

[0023] After the folding pedal is adopted, the embodiment sets a rotatable connecting piece between the pedal and the crank, so that the pedal has a stable supporting state for providing power and a folding state for being folded with the bicycle frame, and the connecting piece, the limiting mechanism for limiting the axial sliding of the connecting rod and the connecting rod for axially sliding in the guide pipe improve the structural stability of the pedal in the use position and the convenience of quickly turning the pedal when the pedal needs to be stored; the folding pedal sets simple limiting holes on the crank and connecting rods matched with the limiting holes, and the crank and the connecting rods are connected through the connecting piece, so that the simple limiting holes, the connecting rods and the connecting piece greatly simplify the structure of the folding pedal for supporting and folding, facilitate the manufacturer to produce and process the parts of the folding pedal, thereby reducing the production cost and facilitating the popularization of the folding pedal. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Among them:

[0026] Figure 1 The overall structure of the folding pedal according to the present application Figure 1 ;

[0027] Figure 2 The overall structure of the folding pedal according to the present application Figure 2 ;

[0028] Figure 3 The overall structure of the folding pedal according to the present application

[0029] Figure 4 The overall structure of the folding pedal according to the present application Figure 1 ;

[0030] Figure 2 The overall structure of the folding pedal according to the present application Figure 6 ;

[0031] Figure 7 The overall structure of the folding pedal according to the present application

[0032] Figure 8 The overall structure of the folding pedal according to the present application

[0033] Figures 1-8The utility model provides a folding pedal's sleeve's structural schematic view.

[0034] Reference: 1 crank, 10 connecting column, 101 limit hole, 102 locking plane, 2 connecting piece, 20 connecting pipe, 21 guide pipe, 210 installation through hole, 3 limit mechanism, 30 ball, 31 sleeve, 310 avoidance slot, 311 ring step, 312 guide hole, 32 fixed ring, 33 return spring, 34 limit pin, 35 pipe sleeve, 4 pedal, 40 connecting rod, 401 limit recess, 402 guide slot, 6 magnet. DETAILED DESCRIPTION

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs; the terms used in the specification of the application are only for the purpose of describing the specific embodiments, and are not intended to limit the utility model; the terms "include" and "have" and their any variations in the specification and claims of the utility model and the above-mentioned drawing description are intended to cover the non-exclusive inclusion; the terms "first", "second" and the like in the specification and claims of the utility model or the above-mentioned drawing are used to distinguish different objects, and are not used to describe a particular order.

[0036] In the present text, the reference to "embodiments" means that the specific features, structures or characteristics described in conjunction with the embodiments can be included in at least one embodiment of the utility model. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0037] In order to make the person skilled in the art better understand the utility model scheme, the technical scheme in the utility model embodiment will be described clearly and completely in conjunction with the drawings below.

[0038] As Figure 3 shown, the utility model provides an embodiment.

[0039] The utility model discloses a folding pedal, comprising: crank 1, connecting piece 2, limiting mechanism 3 and pedal 4, one end of crank 1 is used for connecting bicycle, the other end of crank 1 is equipped with connecting column 10, and the connecting column 10 is equipped with limiting hole 101, and the axis of limiting hole 101 is perpendicular with the axis of connecting column 10, connecting piece 2 includes the connecting pipe 20 and guide pipe 21 of interpenetration, one end of guide pipe 21 is fixed in the lateral wall of connecting pipe 20, and the other end is used for connecting pedal 4, and connecting pipe 20 rotatable sleeve is installed on connecting column 10, pedal 4 is equipped with connecting rod 40, and connecting rod 40 is coaxially installed in guide pipe 21, and connecting rod 40 can slide along the axial direction of guide pipe 21, and pulling connecting rod 40 can make pedal 4 have support state and folding state, when pedal 4 is in support state, the end of connecting rod 40 is inserted into the limiting hole 101 of connecting column 10, and is used for limiting the rotation of connecting pipe 20, when pedal 4 is in folding state, the end of connecting rod 40 is housed in guide pipe 21, and the rotation restriction of connecting pipe 20 is cancelled, limiting mechanism 3 is installed on guide pipe 21, and the axial displacement of connecting rod 40 in guide pipe 21 can be limited through limiting component.

[0040] Specifically, the connecting column 10 is coaxially arranged at the end of the crank 1, so that the pedal 4 can be in the same plane with the crank 1 after being turned over, thereby facilitating storage; the connecting piece 2 is in a T-shaped structure as a whole, which is a common tee structure, simple in structure and low in production and processing cost, wherein the connecting pipe 20 is used for being connected with the connecting column 10, when the connecting pipe 20 is sleeved on the connecting column 10, the connecting pipe 20 is connected with the connecting column 10 through a cover plate and a bolt, so that the connecting pipe 20 cannot be separated from the connecting column 10, and the guide pipe 21 can be turned over around the axis of the connecting pipe 20 as the rotation center; the connecting rod 40 of the pedal 4 is in a detachable rod structure, specifically, one end of the connecting rod 40 is fixed with the center position of the pedal 4 through a bolt, the other end of the connecting rod 40 is inserted into the guide pipe 21, and the connecting rod 40 is coaxially and slidingly connected in the guide pipe 21, so that the end of the connecting rod 40 can be inserted into the limiting hole 101 of the connecting column 10 or separated from the limiting hole 101 and stored in the guide pipe 21, thereby making the pedal 4 be in a supporting state or a folding state respectively, in the supporting state, the pedal 4 is crossed with the crank 1, the relative rotation of the connecting pipe 20 on the connecting column 10 is limited, so that the pedal 4 can form stable support for the user's instep, at this time, the user can drive the crank 1 to rotate together by treading the pedal 4, thereby providing power for the bicycle; in the folding state, the pedal 4 is stored in the guide pipe 21, the connecting pipe 20 is not limited in the radial direction by the connecting rod 40, and can rotate around the limiting column 10, at this time, the user can turn over the pedal 4 to the position close to the bicycle frame, thereby facilitating storage or carrying; it can be seen that, by arranging the limiting hole 101 on the crank 1 and connecting the connecting rod 40, and then connecting the crank 1 and the connecting rod 40 through the connecting piece 2, the shapes of the limiting hole 101 and the connecting rod 40 in the embodiment can be circular or square in cross section, which is simple, and manufacturers can design according to actual needs, thereby greatly simplifying the structure of the folding pedal for supporting and folding, and reducing the production cost.

[0041] In the embodiment, the outer diameter of the connecting rod 40 is slightly smaller than the inner diameter of the limiting hole 101, so as to improve the stability of the connecting rod 40 inserted into the limiting hole 101, and the opening of the limiting hole 101 close to the guide pipe 21 is chamfered, so as to facilitate the insertion of the connecting rod 40 into the limiting hole 101. In the embodiment, the limiting mechanism 3 is installed at the guide pipe 21 and connected with the connecting rod 40, so that the connecting rod 40 is in the position of being inserted into the limiting hole 101 in the normal state, when storage or carrying is needed, the axial limitation of the connecting rod 40 on the guide pipe 21 is removed by operating the limiting mechanism 3, so that the connecting rod 40 can slide away from the limiting hole 101, thereby turning over the pedal 4 for storage.

[0042] In general, the embodiment sets the rotatable connecting piece 2 between the pedal 4 and the crank 1, so that the pedal 4 has a stable supporting state for providing power and a folding state for being folded to be attached to the bicycle frame, and further sets the connecting rod 40 axially sliding in the guide pipe 21 and the limiting mechanism 3 limiting the axial sliding of the connecting rod 40, so as to improve the structural stability of the pedal 4 in the use position and the convenience of quickly turning over the pedal 4 when the pedal 4 needs to be stored. The folding pedal is provided with the simple limiting hole 101 on the crank 1 and the connecting rod 40 matched with the limiting hole 101, and further sets the connecting piece 2 to connect the crank 1 and the connecting rod 40, so that the simple limiting hole 101, the connecting rod 40 and the connecting piece 2 greatly simplify the structure of the folding pedal for supporting and folding, facilitate the manufacturer to produce and process the parts of the folding pedal, and further reduce the production cost and facilitate the popularization of the folding pedal.

[0043] In order to prevent the connecting pipe 20 and the connecting column 10 from being easily rotated by external force when the pedal 4 is in the storage position, the side wall of the connecting column 10 is provided with the locking plane 102, and the end of the connecting rod 40 can be attached to the locking plane 102. The locking plane 102 can be selected to be arranged at different positions on the side wall of the connecting column 10 according to the specific vehicle type. For example, when the locking plane 102 is parallel to the axis of the limiting hole 101, the connecting rod 40 is perpendicular to the ground when the connecting rod 40 is attached to the locking plane 102. In other embodiments, the locking plane 102 can also have an angle with the axis of the limiting hole 101, which will not be described here. The locking plane 102 of the embodiment is provided with two locking planes 102, which are symmetrically arranged. When the end of the connecting rod 40 is stored in the guide pipe 21 and the pedal 4 is turned over upward or downward, the pedal 4 can be attached to the frame upward or downward. During this process, the end of the connecting rod 40 is always in contact with the outer wall of the connecting column 10. When the connecting rod 40 is perpendicular to the locking plane 102, the end of the connecting rod 40 is attached to the locking plane 102, so that the end of the connecting rod 40 is in line contact with the connecting column 10. At this time, the connecting pipe 20 cannot be easily rotated due to the limitation of the connecting rod 40 and the locking plane 102. When the pedal 4 needs to be used for riding a bicycle, the user only needs to turn the pedal 4 outward to drive the connecting pipe 20 to rotate until the end of the connecting rod 40 is inserted into the limiting hole 101 when the connecting rod 40 is in the same axis as the limiting hole 101. In order to further improve the stability of the pedal 4 in the storage position, the locking plane 102 and the end of the connecting rod 40 are provided with magnets 6 that can be attracted to each other. Through the attraction of the magnets 6, the stability of the connection between the two is further improved.

[0044] This invention uses a limiting mechanism 3 to limit the axial sliding of the connecting rod 40, so that the carbon plate 4 can be stably in a supported or folded state, thereby improving the structural stability of the folding pedal. The limiting mechanism 3 is a limiting screw, specifically, a threaded hole is opened in the side wall of the guide tube 21, and multiple insertion holes are opened in the side wall of the connecting rod 40. By inserting the limiting screw into different insertion holes, the end of the connecting rod 40 is in different positions. In this embodiment, the limiting mechanism 3 adopts the method shown in the attached figure. Figure 5 - Appendix Figure 3 The structure shown limits the movement of link 40, as detailed below:

[0045] The limiting mechanism 3 includes a ball bearing 30, a sleeve 31, and a retaining ring 32. The retaining ring 32 is coaxially mounted on the end of the guide tube 21. The guide tube 21 has a mounting through hole 210 on its wall, and the connecting rod 40 has a limiting groove 401 on its outer wall. The limiting groove 401 can connect to the mounting through hole 210. The sleeve 31 is slidably fitted onto the guide tube 21, and the end of the sleeve 31 can abut against the retaining ring 32. The inner wall of the sleeve 31 has a relief groove 310, and sliding the sleeve 31 allows the sleeve 31 to... The clearance groove 310 is connected to the mounting through hole 210; the ball 30 is installed in the mounting through hole 210, and the diameter of the ball 30 is greater than the wall thickness of the guide tube 21; the ball 30 has a locked position and an unlocked position. When the ball 30 is in the locked position, the inner side of the ball 30 is embedded in the limiting groove 401, and the outer side of the ball 30 abuts against the inner wall of the sleeve 31; when the ball 30 is in the unlocked position, the inner side of the ball 30 abuts against the outer wall of the connecting rod 40, and the outer side of the ball 30 is embedded in the clearance groove 310.

[0046] Specifically, the two balls 30 are symmetrically arranged to improve the connection stability, the avoiding groove 310 is an annular groove structure arranged on the inner wall of the sleeve 31, so that the ball 30 can be stably embedded into the avoiding groove 310 when moving outward, when the pedal 4 is in the supporting state, the end of the connecting rod 40 is inserted into the limiting hole 101, and the limiting groove 401 on the connecting rod 40 is aligned with the mounting hole 210, at this time, the inner side of the ball 30 is embedded into the limiting groove 401, and the outer side of the ball 30 is limited by the inner wall of the sleeve 31 and cannot move outward, so that the ball 30 limits the axial displacement of the connecting rod 40 on the guide pipe 21, and the user cannot pull or push the pull rod at this time; correspondingly, the avoiding groove 310 of the sleeve 31 is away from the fixed ring 32, and at this time the ball 30 is between the avoiding groove 310 and the fixed ring 32, when it is needed to convert the pedal 4 from the supporting state to the folding state, the axial displacement limitation on the connecting rod 40 is specifically released, the user slides the sleeve 31 to the direction of the fixed ring 32, so that the avoiding groove 310 is connected to the mounting hole 210, at this time, the ball 30 is not limited by the inner wall of the sleeve 31, the user pulls the connecting rod 40 by force, the outer wall of the connecting rod 40 forces the ball 30 to embed into the avoiding groove 310 outward, and the connecting rod 40 can slide away from the limiting hole 101 without being limited by the ball 30; in the embodiment, the inner wall of the sleeve 31 and the outer wall of the guide pipe 21 are attached, the outer wall of the connecting rod 40 and the inner wall of the guide pipe 21 are attached, the sum of the wall thickness of the guide pipe 21 and the groove depth of the avoiding groove 310 is equal to the sum of the wall thickness of the guide pipe 21 and the groove depth of the limiting groove 401, and is equal to the diameter of the ball 30, so as to improve the stability of the ball 30 in the mounting hole 210 and the stable limitation on the connecting rod 40; it should be noted that the groove of the limiting groove 401 is rounded to facilitate the ball 30 to slide into or out of the limiting groove 401.

[0047] In order to avoid the disengagement of the connecting rod 40 from the guide pipe 21 and limit the circumferential rotation of the connecting rod 40, the limiting mechanism 3 of the embodiment further comprises a limiting pin 34, the outer wall of the connecting rod 40 is provided with a guide groove 402 extending along the axial direction of the connecting rod 40, the limiting pin 34 is inserted into the pipe wall of the guide pipe 21, and the inner end of the limiting pin 34 is inserted into the guide groove 402. Specifically, the length of the guide groove 402 is greater than or equal to the depth of the limiting hole 101, so as to ensure that the end of the connecting rod 40 can be completely disengaged from the limiting hole 101, so that when the user cannot pull the connecting rod 40 outward, it means that the connecting pipe 20 can rotate relative to the connecting column 10. At the same time, the two sides of the limiting pin 34 are attached to the two side walls of the guide groove 402, so as to limit the circumferential rotation of the connecting rod 40, and further ensure that the limiting recess 401 and the mounting through hole 210 are in the same plane, so that the ball 30 can be accurately embedded into the limiting recess 401 when the connecting rod 40 slides. Correspondingly, in order to limit the circumferential rotation of the sleeve 31 and ensure that the ball 30 can be accurately embedded into the avoiding groove 310, the sleeve 31 is also provided with a guide hole 312, the guide hole 312 is strip-shaped and extends along the axial direction of the sleeve 31, and the outer end of the limiting pin 34 is inserted into the guide hole 312. In the embodiment, the limiting pin 34, the guide hole 312 and the guide groove 402 are all provided with two, and the two limiting pins 34 are symmetrically arranged, so as to improve the structural stability of the folding pedal.

[0048] Referring to the accompanying drawings Figure 4 , the accompanying drawings Figure 8 and the accompanying drawings ​, the inner wall of the sleeve 31 is provided with a ring step 311, the reset spring 33 is sleeved on the guide pipe 21, and one end of the reset spring 33 abuts against the ring step 311, and the other end of the reset spring 33 abuts against the fixed ring 32. Specifically, the sleeve 31 forms a mounting cavity of the reset spring 33 at an end away from the avoiding groove 310, and the cavity bottom forms the ring step 311, so that the end of the reset spring 33 is connected. When the sleeve 31 slides away from the connecting pipe 20, the reset spring 33 can be compressed. After the user pulls the connecting rod 40, the sleeve 31 can be released. At this time, the sleeve 31 is still unable to reset and continuously compresses the reset spring 33 due to the limitation of the ball 30; when the end of the connecting rod 40 is reinserted into the limiting hole 101, the outer wall of the connecting rod 40 no longer limits the ball 30, and the limiting groove 401 is aligned with the mounting hole 210, the sleeve 31 slides to the connecting pipe 20 under the action of the reset spring 33, and the inner side of the ball 30 is embedded in the limiting groove 401, at this time, the sleeve 31 resets and limits the ball 30 on the inner wall of the sleeve 31, so that the connecting rod 40 cannot be axially displaced, and the stability of the folding pedal is improved. In other words, the user only needs to briefly slide the sleeve 31 with one hand, and pull the connecting rod 40 with the other hand, so that the end of the connecting rod 40 is separated from the limiting hole 101, and then the pedal 4 is turned to the storage position close to the bicycle frame. Conversely, the connecting rod 40 can be locked by the ball 30 by pushing the connecting rod 40 in the direction of the limiting hole 101.

[0049] In order to further improve the structural stability of the folding pedal, the limiting mechanism 3 further comprises a pipe sleeve 35, the pipe sleeve 35 is threadedly connected to the outer wall of the sleeve 31, and the pipe sleeve 35 is sleeved to make the limiting pin 34 and other structures not exposed on the surface of the structure, avoid the limiting pin 34 from falling off during use, improve the structural stability, and the pipe sleeve 35 is threadedly connected to the sleeve 31, so that the user can hold the pipe sleeve 35 to drive the sleeve 31 to axially slide on the guide pipe 21. The outer wall of the pipe sleeve 35 and the sleeve 31 is also provided with an anti-skid line design, which facilitates the user to operate the sleeve 31 to slide.

[0050] In other embodiments, a bicycle is also provided, which comprises the folding pedal described above.

[0051] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or equivalently replace some of the technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A folding foot pedal, characterized in that, include: Crank, connecting parts, limit mechanism and pedal; One end of the crank is used to connect to the bicycle, and the other end of the crank is provided with a connecting post, and the connecting post is provided with a limiting hole; The connector includes a connecting pipe and a guide pipe that are interconnected. One end of the guide pipe is fixed to the side wall of the connecting pipe, and the connecting pipe is rotatably fitted onto the connecting post. The pedal is equipped with a connecting rod, which is coaxially installed inside the guide tube and can slide along the axial direction of the guide tube. Pulling the connecting rod can make the pedal have a supported state and a folded state. When the pedal is in the supported state, the end of the connecting rod is inserted into the limiting hole of the connecting column to restrict the rotation of the connecting tube. When the pedal is in the folded state, the end of the connecting rod is retracted into the guide tube to release the restriction on the rotation of the connecting tube. The limiting mechanism is installed on the guide tube, and the axial displacement of the connecting rod in the guide tube can be limited by the limiting component.

2. The folding foot pedal according to claim 1, characterized in that, The outer wall of the connecting column is provided with a locking plane, and the end of the connecting rod can be attached to the locking plane.

3. The folding foot pedal according to claim 2, characterized in that, The locking plane and the end of the connecting rod are provided with magnets that can attract each other.

4. The folding foot pedal according to claim 2, characterized in that, The limiting mechanism includes a ball bearing, a sleeve, a return spring, and a retaining ring; the retaining ring is coaxially mounted on the end of the guide tube away from the connecting tube; the guide tube has a mounting through hole on its wall. The reset spring is fitted onto the outer wall of the guide tube, with one end of the reset spring abutting against the fixing ring and the other end of the reset spring used to connect to the sleeve. The sleeve is slidably fitted onto the guide tube, and the inner wall of the sleeve is provided with an annular step for the return spring to abut against it; the inner wall of the sleeve is also provided with a relief groove, and sliding the sleeve can make the relief groove of the sleeve connect with the mounting through hole. The outer wall of the connecting rod is provided with a limiting groove, and pulling the connecting rod can cause the limiting groove to connect with the mounting through hole; The ball bearing is installed in the mounting through hole, and the diameter of the ball bearing is greater than the wall thickness of the guide tube. The ball bearing has a locked position and an unlocked position. When the ball bearing is in the locked position, the inner side of the ball bearing is embedded in the limiting groove, and the outer side of the ball bearing abuts against the inner wall of the sleeve. When the ball bearing is in the unlocked position, the inner side of the ball bearing abuts against the outer wall of the connecting rod, and the outer side of the ball bearing is embedded in the clearance groove.

5. The folding foot pedal according to claim 4, characterized in that, The limiting mechanism also includes a limiting pin. The outer wall of the connecting rod is provided with a guide groove, which extends along the axial direction of the connecting rod. The limiting pin is inserted into the wall of the guide tube, and the inner end of the limiting pin is inserted into the guide groove.

6. The folding foot pedal according to claim 5, characterized in that, The length of the guide groove is greater than or equal to the diameter of the connecting pipe.

7. The folding foot pedal according to claim 5, characterized in that, The sleeve is provided with a guide hole, which is arranged in a strip shape and extends along the axial direction of the sleeve. The outer end of the limiting pin is inserted into the guide hole.

8. The folding foot pedal according to claim 7, characterized in that, The ball bearing, the mounting through hole, and the limiting groove are each provided in multiple quantities, and the clearance groove is an annular groove structure formed on the inner wall of the sleeve; the limiting pin, the guide hole, and the guide groove are each provided in multiple quantities.

9. The folding foot pedal according to claim 5, characterized in that, The limiting mechanism also includes a sleeve, which is threadedly connected to the outer wall of the sleeve.

10. A bicycle, characterized in that, Including the folding pedal as described in any one of claims 1-9.

Images