Pedal assembly

Abstract

This invention provides a pedal assembly including a base, a pedal, a connecting shaft, and a locking assembly. The base is mounted on a bicycle frame, and the first end of the connecting shaft is detachably mounted on the base. The pedal has a mounting hole, and the second end of the connecting shaft passes through and extends out of the mounting hole. The locking assembly is mounted on the second end of the connecting shaft to mount the pedal on the connecting shaft and abut against the base. A first protrusion is provided in the mounting hole near the base, and a second protrusion is provided on the end face of the base facing the pedal. The second protrusion has at least one clearance groove, and the first protrusion is inserted into the clearance groove, which improves the connection strength between the base and the pedal, effectively prevents loosening caused by riding impact, and improves the overall connection reliability of the pedal.

Description

Technical Field

[0001] This invention belongs to the field of foot pedal technology, and particularly relates to a foot pedal assembly. Background Technology

[0002] Footrests are a common component on motorcycles, mainly used to place the rider's feet. Existing footrests typically include a base, a connecting shaft, a pedal, and a locking assembly. The base is detachably mounted on the frame. The first end of the connecting shaft is fixed to the base. The pedal has a mounting hole. The second end of the connecting shaft passes through and extends out of the mounting hole of the pedal. The locking assembly is installed on the second end of the connecting shaft to connect the pedal to the base via the connecting shaft.

[0003] However, when the base and pedal are connected by a connecting shaft alone, the base and pedal are prone to displacement or even detachment when the pedal is impacted by the rider's feet or ground obstacles during riding, resulting in poor reliability of the connection between the base and pedal. Summary of the Invention

[0004] The purpose of this invention is to provide a foot pedal assembly to solve the problem of poor reliability in the connection between the base and the foot pedal in the prior art.

[0005] To achieve this objective, the present invention adopts the following technical solution: This invention provides a foot pedal assembly, which includes a base, a pedal, a connecting shaft, and a locking assembly, wherein: The base is mounted on the frame, and the first end of the connecting shaft is detachably mounted on the base. The pedal has a mounting hole, and the second end of the connecting shaft passes through and extends out of the mounting hole. A locking assembly is mounted on the second end of the connecting shaft to mount the pedal on the connecting shaft and abut against the base. A first protrusion is provided at one end of the mounting hole near the base, and a second protrusion is provided on the end face of the base facing the pedal. The second protrusion has at least one clearance groove, and the first protrusion is inserted into the clearance groove.

[0006] Optionally, the foot pedal assembly also includes at least one elastomer, the first protrusion includes at least one first protrusion, each first protrusion corresponds to a relief groove, the mounting hole is provided with a stepped hole at one end near the base, the first protrusion is provided on the stepped surface, and at least one first limiting groove is provided on the side wall of the first protrusion. The second protrusion includes at least one second protrusion, and at least one second limiting groove is provided on the side wall of the second protrusion near the limiting groove. The second protrusion is inserted into the stepped hole to form at least one receiving cavity through the cooperation of the first limiting groove and the second limiting groove. The receiving cavity extends in the horizontal direction, and each receiving cavity corresponds to an elastic body. The elastic body extends in the horizontal direction and is inserted into the corresponding receiving cavity with clearance fit. When the rider steps on the pedal, the elastic body can deform under force, so that the pedal rotates at a certain angle relative to the connecting shaft, thereby making the sole of the rider's foot fit in contact with the pedal surface when changing riding posture.

[0007] Optionally, four elastomers are provided, and two first protrusions are symmetrically arranged on the step surface of the stepped hole, and two first limiting grooves are symmetrically arranged on both sides of the first protrusions along the circumferential direction. The base has a cylindrical section extending toward the pedal, with a central hole through the cylindrical section along the axial direction. There are two second protrusions, which are symmetrically arranged on the end face of the cylindrical section near the pedal, forming two clearance grooves between them. Two second limiting grooves are symmetrically arranged on both sides of the second protrusions along the circumferential direction. After the pedal is installed in place, the two first protrusions are inserted into the corresponding clearance grooves. Each first limiting groove and an adjacent second limiting groove combine to form a receiving cavity, thereby forming four receiving cavities evenly distributed along the circumferential direction. The elastic body is placed in the corresponding receiving cavity.

[0008] Optionally, the outer diameter of the cylindrical section is adapted to the diameter of the stepped hole. A sleeve located on the outer edge of the central hole is provided on the end face of the cylindrical section near the pedal. The sleeve extends axially. Two second protrusions are integrally formed on the outer wall of the sleeve. The length of the first protrusion and the sleeve along the axial direction is the same. The first limiting groove, the second limiting groove, the outer wall of the sleeve, and the inner wall of the stepped hole form a receiving cavity.

[0009] Optionally, the locking assembly includes a first nut and an anti-rotation washer. The second end of the connecting shaft is provided with a first external thread section. After the pedal is installed in place, the first external thread section extends out of the mounting hole. The anti-rotation washer is fitted onto the second end of the connecting shaft. The first nut is installed on the first external thread section and locks the anti-rotation washer onto the pedal.

[0010] Optionally, the second end of the connecting shaft is also provided with a limiting section. The limiting section is located at the end of the first external thread section near the base. The outer diameter of the limiting section is larger than the outer diameter of the first external thread section. Multiple snap-fit ​​grooves are provided along the circumferential direction at the outer edge of the end face of the limiting section near the first external thread section. The anti-rotation washer has a through hole in the middle, and multiple limiting blocks are arranged at intervals along the circumference inside the through hole. Each limiting block corresponds to a snap-fit ​​groove. The limiting block and the corresponding snap-fit ​​groove are adapted to each other. When the first nut is installed on the first external thread section and the anti-rotation washer is locked and fixed on the pedal, the limiting block is set in the corresponding snap-fit ​​groove. Thus, the combination of multiple snap-fit ​​grooves and multiple limiting blocks prevents the connecting shaft from rotating and limits the connecting shaft in the axial and radial directions.

[0011] Optionally, the connecting shaft is also provided with a shoulder section, which is connected to the limiting section and the outer diameter of the shoulder section is larger than the outer diameter of the limiting section. The mounting hole also includes a first section hole and a second section hole. The outer diameter of the limiting section is adapted to the diameter of the second section hole, and the outer diameter of the shoulder section is adapted to the diameter of the first section hole. After the pedal is installed in place, the shoulder section is located in the first section hole.

[0012] Optionally, the cross-section of the limiting block can be any of a circle, an arc, or a polygon, and the locking groove can be any of a circle, an arc, or a polygon that is compatible with the limiting block.

[0013] Optionally, both the first and second limiting grooves are circular arc grooves, the accommodating cavity is a cylindrical cavity, and the elastic body is a cylinder.

[0014] Optionally, a through hole is provided on the base, and a second external thread section is provided on the first end of the connecting shaft. The first end of the connecting shaft passes through the through hole and is locked and fixed on the base by a second nut.

[0015] Compared with the prior art, the foot pedal assembly proposed in this invention has the following advantages: 1) The first protrusion on the base is inserted into the limiting groove of the second protrusion on the pedal, which improves the connection strength between the base and the pedal, effectively prevents loosening caused by riding impact, and improves the overall connection reliability of the pedal. 2) The elastomer is inserted into the corresponding receiving cavity and fits with the gap of the receiving cavity to realize the elastic connection between the pedal and the base. It can provide adaptive buffering and shock absorption for the pedal in the circumferential direction during riding, effectively absorbing impact and vibration and improving the reliability of the connection. 3) The pedals rotate to ensure that the rider's feet are always in contact with the pedal surface when adjusting the riding posture, thus ensuring riding safety and comfort. 4) The elastomer provides elasticity when the pedal rotates, which not only allows the pedal to automatically return to its initial state when the rider releases the pedal, but also prevents the first protrusion from making hard contact with the adjacent second protrusion in the circumferential direction, further improving the reliability and safety of the connection between the pedal and the base. 5) The base and pedal are precisely coaxially assembled, reducing assembly gaps and shaking, and further enhancing connection reliability; 6) It achieves multiple limiting of the connecting shaft in the axial, radial and anti-rotation directions, thereby preventing the connecting shaft from shifting under the action of impact force, causing the pedal to loosen, and greatly improving the stability and reliability of the pedal installation. 7) The first and second protrusions cooperate to limit the pedal along the axial direction, ensuring the accuracy of pedal assembly; 8) Multiple elastic bodies are provided, which can form multiple elastic buffer parts on the contact surface between the pedal and the base, thereby improving the adaptive buffering effect of the pedal. Attached Figure Description

[0016] To more clearly illustrate and understand the technical solutions in the embodiments of the present invention, the accompanying drawings used in the background technology and embodiment descriptions of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the foot pedal assembly provided in an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of the foot pedal of the foot pedal assembly provided in an embodiment of the present invention; Figure 3 This is a three-dimensional structural diagram of the base of the foot pedal assembly provided in an embodiment of the present invention; Figure 4 This is a side view of the base of the foot pedal assembly provided in an embodiment of the present invention; Figure 5 This is a cross-sectional view of the foot pedal assembly provided in an embodiment of the present invention; Figure 6 This is a side view of the foot pedal of the foot pedal assembly provided in an embodiment of the present invention; Figure 7 This is a three-dimensional structural diagram of the anti-rotation pad of the foot pedal assembly provided in an embodiment of the present invention; Figure 8 This is a three-dimensional structural diagram of the connecting shaft of the foot pedal assembly provided in an embodiment of the present invention. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more complete description of the invention will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. 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 this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] Please see Figures 1 to 8 As shown in the figure, an embodiment of the present invention provides a pedal assembly, which includes a base 10, a pedal 20, a connecting shaft 30, and a locking assembly 40. The base 10 is mounted on the frame. The first end of the connecting shaft 30 is detachably mounted on the base 10. The pedal 20 has a mounting hole 21. The second end of the connecting shaft 30 passes through and extends out of the mounting hole 21. The locking assembly 40 is mounted on the second end of the connecting shaft 30 to mount the pedal 20 on the connecting shaft 30 and abut against the base 10. A first protrusion 210 is provided in the mounting hole 21 near the end of the base 10. A second protrusion 11 is provided on the end face of the base 10 facing the pedal 20. The second protrusion 11 has at least one clearance groove 110. The first protrusion 210 is inserted into the clearance groove 110.

[0020] Specifically, the pedal 20 is provided with a clearance hole 22 at the part away from the base 10. The mounting hole 21 is connected to the clearance hole 22. The locking component 40 is located in the clearance hole 22, which not only reduces weight, but also protects the locking component 40 by being housed in the clearance hole 22, resulting in a neat appearance.

[0021] Specifically, the pedal 20 is also provided with two weight-reducing holes 23 to reduce the weight of the pedal 20.

[0022] Specifically, the pedal 20 has anti-slip teeth 24 on its surface to increase friction when the rider pedals, prevent slipping, and improve safety.

[0023] When the pedal 20 is installed on the base 10, the first protrusion 210 is inserted into the relief groove 110 of the second protrusion 11. The first protrusion 210 and the second protrusion 11 enhance the connection strength between the base 10 and the pedal 20, effectively preventing the base 10 and the pedal 20 from loosening due to riding impact, and improving the overall connection reliability of the pedal.

[0024] In one embodiment, the foot pedal assembly further includes at least one elastic body 50. The first protrusion 210 includes at least one first protrusion 2100, each first protrusion 2100 corresponding to a relief groove 110. A stepped hole 211 is provided at one end of the mounting hole 21 near the base 10. The first protrusion 2100 is disposed on the stepped surface, and at least one first limiting groove 2101 is provided on the side wall of the first protrusion 2100. The second protrusion 11 includes at least one second protrusion 111, and at least one second limiting groove 1110 is provided on the side wall of the second protrusion 111. Two protrusions 111 are inserted into the stepped hole 211 to form at least one receiving cavity 12 through the cooperation of the first limiting groove 2101 and the second limiting groove 1110. The receiving cavity 12 extends in the horizontal direction, and each receiving cavity 12 corresponds to an elastic body 50. The elastic body 50 extends in the horizontal direction and is inserted into the corresponding receiving cavity 12 with a clearance fit. When the rider steps on the pedal 20, the elastic body 50 can be deformed by force so that the pedal 20 rotates at a certain angle relative to the connecting shaft 30, thereby making the sole of the rider's foot fit against the stepping surface of the pedal 20 when changing the riding posture.

[0025] Specifically, the elastomer 50 is configured as an elastic column, and the elastomer 50 is made of rubber.

[0026] Specifically, in the initial state, the pedal 20 maintains a predetermined angle with the base 10 under the elastic force of the elastic body 50. When the rider steps on the pedal 20, the pedal 20 overcomes the elastic force of the elastic body 50 and rotates relative to the base 10 by a certain angle. When the rider releases the pedal 20, the pedal 20 automatically returns to its original position under the elastic force of the elastic body 50.

[0027] By inserting the elastomer 50 into the corresponding receiving cavity 12 and fitting it with the cavity 12 with a gap, an elastic connection is achieved between the pedal 20 and the base 10. This provides adaptive cushioning and shock absorption for the pedal 20 in the circumferential direction during riding, effectively absorbing impact and vibration and improving the reliability of the connection. The rotation of the pedal 20 ensures that the rider's foot is always in contact with the pedal surface when adjusting the riding posture, ensuring riding safety and comfort. The elastomer 50 provides elasticity when the pedal 20 rotates, preventing the first protrusion 2100 from making hard contact with the adjacent second protrusion 111 in the circumferential direction, further improving the reliability and safety of the connection between the pedal 20 and the base 10, and thus also improving the overall service life of the pedal.

[0028] In one embodiment, four elastic bodies 50 are provided. Two first protrusions 2100 are symmetrically arranged on the stepped surface of the stepped hole 211. Two first limiting grooves 2101 are symmetrically arranged on both sides of the first protrusions 2100 along the circumferential direction. A cylindrical segment 13 extending toward the pedal 20 is provided on the base 10. A central hole 130 is opened through the cylindrical segment 13 along the axial direction. Two second protrusions 111 are provided. The two second protrusions 111 are symmetrically arranged on the end face of the cylindrical segment 13 near the pedal 20. Two clearance grooves 110 are formed between the two second protrusions. Two second limiting grooves 1110 are symmetrically arranged on both sides of the second protrusions 111 along the circumferential direction. After the pedal 20 is installed in place, the two first protrusions 2100 are respectively inserted into the corresponding clearance grooves 110. Each first limiting groove 2101 and an adjacent second limiting groove 1110 combine to form a receiving cavity 12, thereby forming four receiving cavities 12 evenly distributed along the circumferential direction. The elastic body 50 is disposed in the corresponding receiving cavity 12.

[0029] By providing multiple elastic bodies 50, multiple elastic buffer parts can be formed on the contact surface between the pedal 20 and the base 10, thereby improving the adaptive buffering effect of the pedal 20.

[0030] In one embodiment, the outer diameter of the cylindrical segment 13 is adapted to the diameter of the stepped hole 211. A sleeve 14 located on the outer edge of the central hole 130 is provided on the end face of the cylindrical segment 13 near the pedal 20. The sleeve 14 extends axially. Two second protrusions 111 are integrally formed on the outer side wall of the sleeve 14. The first protrusion 2100 has the same axial length as the sleeve 14. The first limiting groove 2101, the second limiting groove 1110, the outer side wall of the sleeve 14, and the inner wall of the stepped hole 211 form a receiving cavity 12.

[0031] The cylindrical section 13 and the stepped hole 211 are used to limit the pedal 20. The first protrusion 2100 and the sleeve 14 are used to limit the pedal 20 on the base 10 along the axis, thereby further improving the stability and reliability of the pedal 20 installation.

[0032] In one embodiment, the locking assembly 40 includes a first nut 41 and an anti-rotation washer 42. The second end of the connecting shaft 30 is provided with a first external thread section 32. After the pedal 20 is installed in place, the first external thread section 32 extends out of the mounting hole 21. The anti-rotation washer 42 is fitted onto the second end of the connecting shaft 30. The first nut 41 is installed on the first external thread section 32 and locks the anti-rotation washer 42 onto the pedal 20.

[0033] Specifically, the first nut 41 is a flange nut. The flange of the flange nut and the contact surface of the anti-rotation washer 42 are provided with anti-slip texture. The anti-rotation washer 42 is pressed and fixed on the connecting shaft 30 and the pedal 20 by the flange surface of the flange nut, which increases the pressing area and further improves the reliability of locking the first nut 41.

[0034] The engagement of the first nut 41 with the first external thread section 32 provides a way to lock and fix the anti-rotation washer 42 using a threaded structure, which is simple in structure and easy to disassemble and assemble.

[0035] In one embodiment, a limiting segment 33 is also provided at the second end of the connecting shaft 30. The limiting segment 33 is located at the end of the first external thread segment 32 near the base 10. The outer diameter of the limiting segment 33 is larger than the outer diameter of the first external thread segment 32. Multiple snap-fit ​​grooves 330 are provided along the circumferential direction at the outer edge of the end face of the limiting segment 33 near the first external thread segment 32. A through hole 420 is provided in the middle of the anti-rotation washer 42. Multiple limiting blocks 421 are spaced apart along the circumferential direction in the through hole 420. Each limiting block 421 corresponds to a snap-fit ​​groove 330. The limiting block 421 is adapted to the corresponding snap-fit ​​groove 330. When the first nut 41 is installed on the first external thread segment 32 and the anti-rotation washer 42 is locked and fixed on the pedal 20, the limiting block 421 is located in the corresponding snap-fit ​​groove 330. Thus, the connecting shaft 30 is prevented from rotating and the connecting shaft 30 is limited in the axial and radial directions by the cooperation of multiple snap-fit ​​grooves 330 and multiple limiting blocks 421.

[0036] By engaging the limiting block 421 on the limiting pad with the snap-fit ​​groove 330 on the connecting shaft 30, multiple limiting functions of the connecting shaft 30 in the axial, radial and anti-rotation directions are achieved, thereby preventing the connecting shaft 30 from shifting under the action of impact force, causing the pedal 20 to loosen, and greatly improving the stability and reliability of the installation of the pedal 20.

[0037] In one embodiment, the connecting shaft 30 is further provided with a shoulder section 34, which is connected to the limiting section 33 and the outer diameter of the shoulder section 34 is larger than the outer diameter of the limiting section 33. The mounting hole 21 also includes a first section hole 25 and a second section hole 26. The outer diameter of the limiting section 33 is adapted to the diameter of the second section hole 26, and the outer diameter of the shoulder section 34 is adapted to the diameter of the first section hole 25. After the pedal 20 is installed in place, the shoulder section 34 is located in the first section hole 25.

[0038] Specifically, the shoulder section 34 is provided with an external hexagonal section 31 at one end near the limiting section 33. The external hexagonal section 31 is used to cooperate with tools to install the second end of the connecting shaft 30.

[0039] Specifically, the tools can be wrenches, pliers, etc.

[0040] Specifically, the shoulder section 34 is connected to the limiting section 33 through the external hexagonal section 31.

[0041] By assembling the shoulder section 34 and the limiting section 33 into the corresponding first section hole 25 and second section hole 26, the connecting shaft 30 is axially positioned, which improves the assembly accuracy and structural rigidity between the connecting shaft 30 and the pedal 20 and reduces loosening gaps.

[0042] In one embodiment, the cross-section of the limiting block 421 is any one of circular, arc-shaped or polygonal, and the snap-fit ​​groove 330 is any one of circular, arc-shaped or polygonal that is adapted to the limiting block 421.

[0043] By setting various shapes for the limit block 421 and the locking groove 330, the matching form of the limit block 421 and the locking groove 330 can be flexibly selected according to the actual working conditions, ensuring the stability and reliability of circumferential limiting.

[0044] In one embodiment, the first limiting groove 2101 and the second limiting groove 1110 are both arc grooves, the accommodating cavity 12 is a cylindrical cavity, and the elastic body 50 is a cylinder.

[0045] By using a cylindrical cavity and a cylindrical elastomer 50, the two are well compatible, the force is evenly distributed, and it is not easy to jam, making it easy to assemble and replace. At the same time, the arc-shaped contact surface can reduce stress concentration and improve the service life of the elastomer 50.

[0046] In one embodiment, a through hole 15 is provided on the base 10, and a second external thread section 35 is provided on the first end of the connecting shaft 30. The first end of the connecting shaft 30 passes through the through hole 15 and is locked and fixed on the base 10 by a second nut 36.

[0047] Specifically, the through hole 15 and the center hole 130 are coaxially arranged.

[0048] Specifically, the through hole 15 is set as an internal hexagonal hole, and the second nut 36 is set as a hexagonal nut that is compatible with the internal hexagonal hole.

[0049] The engagement of the second nut 36 with the second external thread section 35 provides a way to lock and fix the connecting shaft 30 and the base 10 using a threaded structure. The structure is simple and easy to disassemble and assemble.

[0050] The general installation steps for the above-mentioned foot pedal assembly are as follows: S1, insert the first end of the connecting shaft 30 into the through hole 15 and thread it into the second nut 36 in the through hole 15; S2, Place the elastomer 50 into the accommodating cavity 12, pass the second end of the connecting shaft 30 through the mounting hole 21, so that the first protrusion 210 is inserted into the corresponding relief groove 110 on the second protrusion 11, and the second end of the connecting shaft 30 passes through the anti-rotation washer 42. S3, the first nut 41 is threaded onto the first external thread section 32 of the connecting shaft 30 to connect the anti-rotation washer 42, the connecting shaft 30, the pedal 20 and the base 10.

[0051] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above examples. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foot pedal assembly, characterized in that, The foot pedal assembly includes a base, a pedal, a connecting shaft, and a locking assembly, wherein: The base is mounted on the vehicle frame, and the first end of the connecting shaft is detachably mounted on the base. The pedal has a mounting hole, and the second end of the connecting shaft passes through and extends out of the mounting hole. The locking assembly is mounted on the second end of the connecting shaft to mount the pedal on the connecting shaft and abut against the base. A first protrusion is provided at one end of the mounting hole near the base, and a second protrusion is provided on the end face of the base facing the pedal. The second protrusion has at least one clearance groove, and the first protrusion is inserted into the clearance groove.

2. The foot pedal assembly according to claim 1, characterized in that, The foot pedal assembly further includes at least one elastic body, the first protrusion includes at least one first protrusion, each first protrusion corresponds to one of the clearance grooves, the mounting hole is provided with a stepped hole at one end near the base, the first protrusion is provided on the stepped surface, and at least one first limiting groove is provided on the side wall of the first protrusion. The second protrusion includes at least one second protrusion, and at least one second limiting groove is provided on the side wall of the second protrusion near the limiting groove; The second protrusion is inserted into the stepped hole to form at least one receiving cavity through the cooperation of the first limiting groove and the second limiting groove. The receiving cavity extends in the horizontal direction, and each receiving cavity corresponds to one elastic body. The elastic body extends in the horizontal direction and is inserted into the corresponding receiving cavity with clearance fit. When the rider steps on the pedal, the elastic body can deform under force, so that the pedal rotates at a certain angle relative to the connecting shaft, thereby making the rider's foot fit in contact with the pedal surface.

3. The foot pedal assembly according to claim 2, characterized in that, The elastic body is provided in four parts, and two first protrusions are symmetrically arranged on the step surface of the stepped hole. Two first limiting grooves are symmetrically arranged on both sides of the first protrusion along the circumferential direction. The base is provided with a cylindrical segment extending toward the pedal. The cylindrical segment has a central hole extending through it along the axial direction. Two second protrusions are provided, and the two second protrusions are symmetrically arranged on the end face of the cylindrical segment near the pedal. Two clearance grooves are formed between the two second protrusions. Two second limiting grooves are symmetrically arranged on both sides of the second protrusions along the circumferential direction. After the pedal is installed in place, the two first protrusions are respectively inserted into the corresponding clearance grooves. Each first limiting groove and an adjacent second limiting groove combine to form a receiving cavity, thereby forming four receiving cavities evenly distributed along the circumferential direction. The elastic body is disposed in the corresponding receiving cavity.

4. The foot pedal assembly according to claim 3, characterized in that, The outer diameter of the cylindrical segment is adapted to the diameter of the stepped hole. A sleeve located on the outer edge of the central hole is provided on the end face of the cylindrical segment near the pedal. The sleeve extends axially. Two second protrusions are integrally formed on the outer wall of the sleeve. The length of the first protrusion is the same as that of the sleeve along the axial direction. The first limiting groove, the second limiting groove, the outer wall of the sleeve, and the inner wall of the stepped hole form the receiving cavity.

5. The foot pedal assembly according to claim 1, characterized in that, The locking assembly includes a first nut and an anti-rotation washer. The second end of the connecting shaft is provided with a first external thread section. After the pedal is installed in place, the first external thread section extends out of the mounting hole. The anti-rotation washer is fitted onto the second end of the connecting shaft. The first nut is installed on the first external thread section and locks the anti-rotation washer onto the pedal.

6. The foot pedal assembly according to claim 5, characterized in that, The second end of the connecting shaft is also provided with a limiting section. The limiting section is located at the end of the first external thread section near the base. The outer diameter of the limiting section is larger than the outer diameter of the first external thread section. Multiple snap-fit ​​grooves are formed along the circumferential direction at the outer edge of the end face of the limiting section near the first external thread section. The anti-rotation washer has a through hole in the middle, and multiple limiting blocks are spaced apart along the circumferential direction in the through hole. Each limiting block corresponds to a snap-fit ​​groove. The limiting block and the corresponding snap-fit ​​groove are adapted to each other. When the first nut is installed on the first external thread section and the anti-rotation washer is locked and fixed on the pedal, the limiting block is set in the corresponding snap-fit ​​groove. Thus, the combination of multiple snap-fit ​​grooves and multiple limiting blocks prevents the connecting shaft from rotating and limits the connecting shaft in the axial and radial directions.

7. The foot pedal assembly according to claim 6, characterized in that, The connecting shaft is also provided with a shoulder section, which is connected to the limiting section and the outer diameter of the shoulder section is larger than the outer diameter of the limiting section. The mounting hole also includes a first section hole and a second section hole. The outer diameter of the limiting section is adapted to the diameter of the second section hole, and the outer diameter of the shoulder section is adapted to the diameter of the first section hole. After the pedal is installed in place, the shoulder section is located in the first section hole.

8. The foot pedal assembly according to claim 6, characterized in that, The cross-section of the limiting block is any one of circular, arc-shaped, or polygonal, and the snap-fit ​​groove is any one of circular, arc-shaped, or polygonal that is adapted to the limiting block.

9. The foot pedal assembly according to claim 2, characterized in that, Both the first limiting groove and the second limiting groove are arc grooves, the accommodating cavity is a cylindrical cavity, and the elastic body is a cylinder.

10. The foot pedal assembly according to claim 1, characterized in that, The base has a through hole, and the first end of the connecting shaft has a second external thread section. The first end of the connecting shaft passes through the through hole and is locked and fixed to the base by a second nut.

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