A brake pedal mounting mechanism
By using the anti-loosening mechanism's plug-in block and plug-in slot in conjunction with the ring's limiting design, the problem of motorcycle brake pedal connection mechanism loosening due to vibration is solved, realizing automatic locking and unlocking of the nut, ensuring connection stability and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING CANZHIHUI MACHINERY MANUFACTURING CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-06-30
AI Technical Summary
The existing motorcycle brake pedal connection mechanism is prone to loosening under vibration, leading to nut connection failure and affecting braking accuracy and safety.
An anti-loosening mechanism is adopted, which uses a plug-in block and a plug-in slot to cooperate with the ring limit design to prevent the nut from loosening due to vibration. Automatic locking and unlocking are achieved by using telescopic plug-in components and pulling components.
It effectively prevents nuts from loosening due to vibration, ensuring stable connection, convenient operation, stable structure, and long-term reliability.
Smart Images

Figure CN224427707U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of brake pedal technology, and specifically relates to a brake pedal mounting mechanism. Background Technology
[0002] The brake pedal is one of the most frequently used components of a motorcycle, and its installation quality directly determines the reliability of braking and long-term safety. In existing technologies, such as the motorcycle brake pedal connection mechanism described in patent application number "CN204587200U," the fit between the flanged bushing and the mounting hole, along with the use of a fixing nut, results in extremely small clearances in the brake pedal connection mechanism. This ensures precise positioning of the brake pedal, and tightening the fixing nut after prolonged use prevents loosening. This eliminates the drawback of existing brake pedal connection mechanisms where a large gap between the cotter pin and the mounting hole in the frame causes axial movement of the brake pedal after assembly, leading to torque loss when braking force is transmitted to the brake, affecting braking accuracy, and thus adversely impacting driving safety.
[0003] However, the connection between the nut and the shaft lacks a loosening mechanism. When subjected to continuous vibrations from the motorcycle, the connection area experiences periodic, minute displacements or vibrations. This movement can cause a momentary decrease in the contact force between the threads, or even temporary separation, breaking the locking mechanism maintained by friction. Over time, this minute "slippage" accumulates, eventually causing the nut to loosen and affecting the connection and fixation of the brake pedal. Therefore, improvements are needed. Utility Model Content
[0004] The purpose of this utility model is to provide a brake pedal mounting mechanism that, during use, uses the anti-loosening mechanism's plug-in block to cooperate with the plug-in groove, combined with the ring's limiting design, to effectively prevent the nut from loosening due to vibration and avoid connection failure.
[0005] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows:
[0006] A brake pedal mounting mechanism, comprising
[0007] The frame, with mounting bushings installed on it;
[0008] The pedal body has a sleeve installed on the rear left side and a through hole that matches the position of the sleeve on the front left side of the pedal body.
[0009] A rotating shaft, one end of which passes through a sleeve and is fixedly connected to the assembly bushing by a nut;
[0010] The anti-loosening mechanism is located between the nut and the assembly bushing and is used to lock the nut in place.
[0011] As a preferred technical solution, the anti-loosening mechanism includes an assembly table, which is fixedly installed at the rear end of the assembly bushing. An assembly groove is provided on the rear side of the assembly table, and a connecting groove communicating with the inside of the assembly bushing is provided on the inner wall of the front side of the assembly groove. Several limiting grooves are provided around the rear side of the assembly table. A ring is slidably assembled inside the assembly groove. A circular assembly groove is provided on the rear side of the ring. Several limiting blocks are fixedly installed around the circumference of the ring and are slidably connected to the several limiting grooves. A nut is rotatably assembled on the rear side of the ring. Several insertion grooves are provided around the inner side of the circular assembly groove. An annular assembly block is fixedly installed on the front side of the nut. An assembly groove is provided around the annular assembly block. A telescopic insertion component is provided inside the assembly groove. The telescopic insertion component is connected to one of the insertion grooves.
[0012] As a preferred technical solution, the telescopic plug-in assembly includes a plug-in block, which is slidably assembled inside the assembly groove. The plug-in block has an inclined surface on the side facing the tightening direction of the nut. A spring is fixedly installed at the bottom of the plug-in block, one end of the spring is fixedly connected to the inner wall of the bottom side of the assembly groove, and the top of the plug-in block extends into one of the plug-in grooves.
[0013] A displacement groove is provided on the rear side of the nut, and a pulling component is provided inside the displacement groove. The plug block is connected to the pulling component by a steel wire rope.
[0014] As a preferred technical solution, the pulling component includes a driving block, which is slidably assembled inside the displacement groove. One end of the steel wire rope is fixedly connected to the bottom of the plug-in block, and the other end of the steel wire rope extends into the displacement groove and is fixedly connected to the bottom of the driving block. Both sides of the driving block are arc structures. Inside the displacement groove, two circular locking blocks are arranged vertically on both the left and right sides. The driving block is located between the two upper circular locking blocks and the two lower circular locking blocks.
[0015] As a preferred technical solution, an oil reservoir is provided around the shaft.
[0016] The beneficial effects of this utility model are:
[0017] 1. Reliable anti-loosening effect: Through the cooperation of the plug and slot of the anti-loosening mechanism and the limiting design of the ring, the nut can be effectively prevented from loosening due to vibration, thus avoiding connection failure.
[0018] 2. Easy to operate: When tightening the nut, the plug block automatically extends and retracts without obstructing the operation; when loosening, simply press the drive block to release the lock, making the operation simple and effortless;
[0019] 3. Stable structure: Each component achieves its function through precise matching, the assembly is firm, and it can work stably for a long time. Attached Figure Description
[0020] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;
[0023] Figure 3 This is a schematic diagram of the assembly of the rotating shaft, anti-loosening structure, and nut of this utility model. Figure 1 ;
[0024] Figure 4 This is a schematic diagram of the assembly table structure of this utility model;
[0025] Figure 5 This is a schematic diagram of the assembly of the rotating shaft, anti-loosening structure, and nut of this utility model. Figure 2 ;
[0026] Figure 6 This is a schematic diagram of the assembly of the nut and the ring according to this utility model;
[0027] Figure 7 A schematic diagram of the assembly of the nut and telescopic plug-in assembly of this utility model;
[0028] Figure 8 This is a schematic diagram of the assembly of the nut and the annular assembly block of this utility model.
[0029] Figure 9 This is a schematic diagram of the ring structure of this utility model;
[0030] Figure 10 This is a schematic diagram of the telescopic plug-in assembly structure of this utility model.
[0031] Reference numerals in the attached drawings: 1. Frame; 11. Assembly bushing; 2. Pedal body; 21. Sleeve; 3. Shaft; 31. Nut; 4. Anti-loosening mechanism; 41. Assembly table; 42. Assembly groove; 43. Ring; 45. Limiting block; 46. Insertion groove; 47. Annular assembly block; 48. Assembly groove; 5. Insertion block; 51. Inclined surface; 52. Spring; 53. Displacement groove; 54. Wire rope; 55. Circular locking block; 6. Driving block; 7. Oil reservoir. Detailed Implementation
[0032] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0033] like Figure 1-10 As shown, this utility model provides a brake pedal mounting mechanism, including...
[0034] Frame 1, with mounting bushing 11 installed on the frame 1;
[0035] The pedal body 2 has a sleeve 21 installed on the rear left side and a through hole that matches the position of the sleeve 21 on the front left side.
[0036] The rotating shaft 3 has one end passing through the sleeve 21 and the assembly bushing 11, and is fixedly connected to the assembly bushing 11 by the nut 31. The rear side of the rotating shaft 3 is provided with a threaded section that is threaded to the nut 31. After the rotating shaft 3 passes through the sleeve 21 and the assembly bushing 11, the nut 31 can be used to connect with the threaded section of the rotating shaft 3 to complete the fixation of the pedal body 2.
[0037] An anti-loosening mechanism 4 is disposed between the nut 31 and the assembly bushing 11 to lock the nut 31. Specifically, the anti-loosening mechanism 4 includes an assembly platform 41, which is fixedly installed at the rear end of the assembly bushing 11. An assembly circular groove 42 is provided on the rear side of the assembly platform 41. A connecting groove communicating with the interior of the assembly bushing 11 is provided on the inner wall of the front side of the assembly circular groove 42. Several limiting grooves are provided around the rear side of the assembly platform 41. A circular ring 43 is slidably assembled inside the assembly circular groove 42. A circular assembly groove is provided on the rear side of the circular ring 43. Several limiting blocks 45, which are slidably connected to the limiting grooves, are fixedly installed around the circumference of the circular ring 43. The nut 31 is rotatably assembled on the rear side of the circular ring 43. Several insertion grooves 46 are provided around the inner side of the circular assembly groove. An annular assembly block 47 is fixedly installed on the front side of the nut 31. An assembly groove 48 is provided around the circumference of the annular assembly block 47. A telescopic insertion assembly is provided inside the assembly groove 48, and the telescopic insertion assembly is connected to one of the insertion grooves 46.
[0038] In the initial state, when assembling the nut 31, the ring 43 is aligned with the assembly groove 42 and inserted, and several limiting blocks 45 are aligned with several limiting grooves. After insertion, the internal thread section of the nut 31 also abuts against the thread section of the rotating shaft 3. As the nut 31 is rotated and tightened, the nut 31 will continuously push the ring 43 into the assembly groove 42 until the end face of the nut 31 abuts against the end face of the assembly table 41, thus completing the installation and fixing. During this period, the telescopic plug-in assembly will continuously extend and retract until the installation is completed. The telescopic plug-in assembly will then connect with one of the plug-in slots 46. In this way, after the nut 31 is fixed, when vibration causes the nut to loosen, the nut 31 connects with the ring 43 through the telescopic plug-in assembly, while the ring 43 can only slide inside the assembly groove 42 and cannot rotate, thus preventing the nut from loosening. This can prevent the nut 31 from failing to connect.
[0039] The telescopic plug assembly includes a plug block 5, which is slidably mounted inside the assembly groove 48. The plug block 5 has an inclined surface 51 on the side facing the tightening direction of the nut 31. A spring 52 is fixedly installed at the bottom of the plug block 5. One end of the spring 52 is fixedly connected to the inner wall of the bottom side of the assembly groove 48. The top of the plug block 5 extends into one of the plug grooves 46.
[0040] A displacement groove 53 is provided on the rear side of the nut 31. A pulling component is provided inside the displacement groove 53. The plug block 5 is connected to the pulling component through a steel wire rope 54.
[0041] When the nut 31 is tightened, the inclined surface 51 of the plug block 5 facing the tightening direction will contact the edge of the plug groove 46 of the ring 43. Under the action of tightening force, the inclined surface is forced to compress the spring 52 and retract into the assembly groove 48, without hindering the rotation of the nut. After the nut is tightened to the target position, the spring 52 returns to its original position and pushes the top of the plug block 5 into the corresponding plug groove 46, thereby achieving anti-loosening locking of the nut.
[0042] When it is necessary to loosen the nut 31, operate the pulling component in the displacement groove 53, and pull the plug block 5 through the wire rope 54 to overcome the elastic force of the spring 52 and retract it into the assembly groove 48, so that it is disengaged from the plug groove 46. After the lock is released, the nut can be rotated to complete the loosening operation.
[0043] The pulling assembly includes a driving block 6, which is slidably mounted inside the displacement groove 53. One end of the steel wire rope 54 is fixedly connected to the bottom of the plug-in block 5, and the other end of the steel wire rope 54 extends into the displacement groove 53 and is fixedly connected to the bottom of the driving block 6. The left and right sides of the driving block 6 are both arc structures. Inside the displacement groove 53, two circular locking blocks 55 are arranged vertically on both the left and right sides. The driving block 6 is located between the two upper circular locking blocks 55 and the two lower circular locking blocks 55.
[0044] Under normal conditions, the drive block 6 is positioned between the two upper circular locking blocks 55 and the two lower circular locking blocks 55. At this time, the wire rope 54 is in a slack state and does not affect the locking state of the plug-in block 5.
[0045] When it is necessary to release the lock of nut 31, press the drive block 6 upward. The arc structure on its left and right sides will contact the circular locking block 55 and slide relative to it, so that the drive block 6 overcomes the resistance and disengages from the connection with the two circular locking blocks 55 on the upper side.
[0046] During this process, the drive block pulls the plug block 5 through the wire rope 54, causing it to compress the spring 52 and retract into the assembly groove 48, thus disengaging from the plug groove 46. This allows the nut 31 to be rotated normally to disengage from the shaft 3.
[0047] After use, press the loosening block 6 into the space between the two upper circular locking blocks 55 and the two lower circular locking blocks 55. Under the restoring force of the spring 52, the plug block 5 moves upward to return to its initial state. The operation is simple and convenient.
[0048] The rotating shaft 3 is provided with an oil reservoir 7 around its perimeter; the oil reservoir 7 facilitates the storage of lubricating oil.
[0049] The device is used as follows:
[0050] In use, in the initial state, the ring 43 of the anti-loosening mechanism 4 is not fully inserted into the assembly groove 42 of the assembly table 41, and the limiting block 45 is initially aligned with the limiting groove; the driving block 6 is located in the displacement groove 53 between the two upper circular locking blocks 55 and the two lower circular locking blocks 55, and the wire rope 54 is in a slack state.
[0051] During installation, one end of the rotating shaft 3 is passed sequentially through the sleeve 21, through hole, and mounting bushing 11 of the pedal body 2, so that the nut 31 abuts against the threaded section of the rotating shaft 3; the nut 31 is rotated and tightened, pushing the ring 43 into the mounting groove 42, and the limiting block 45 slides along the limiting groove; during the tightening process, the inclined surface 51 of the plug block 5 contacts the edge of the plug groove 46, and the compression spring 52 retracts into the mounting groove 48, without hindering the rotation of the nut; after the end face of the nut 31 abuts against the end face of the mounting table 41, the spring 52 returns to its original position, pushing the top of the plug block 5 into the corresponding plug groove 46, completing the anti-loosening lock and fixing the pedal body 2. This connection is not affected by vibration and prevents the nut 31 from loosening.
[0052] When it is necessary to loosen nut 31, press the drive block 6 upward. Its arc structure slides relative to the circular locking block 55, overcoming the resistance and driving the wire rope 54 to pull the plug block 5, compressing the spring 52 to retract it into the assembly groove 48 and disengage it from the plug groove 46. After unlocking, rotate nut 31 in the opposite direction to disengage it from the threaded section of the rotating shaft 3, and the loosening operation can be completed. The operation is simple and convenient.
[0053] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A brake pedal mounting mechanism, characterized in that: include The frame (1) is equipped with a mounting bushing (11); The pedal body (2) has a sleeve (21) installed on the left rear side and a through hole matching the position of the sleeve (21) on the left front side. A rotating shaft (3) has one end passing through a sleeve (21) and an assembly bushing (11), and is fixedly connected to the assembly bushing (11) by a nut (31); Anti-loosening mechanism (4) is provided between nut (31) and assembly bushing (11) for locking nut (31).
2. The brake pedal mounting mechanism according to claim 1, characterized in that: The anti-loosening mechanism (4) includes an assembly table (41), which is fixedly installed at the rear end of the assembly bushing (11). An assembly circular groove (42) is provided on the rear side of the assembly table (41). A connecting groove communicating with the inside of the assembly bushing (11) is provided on the inner wall of the front side of the assembly circular groove (42). Several limiting grooves are provided around the rear side of the assembly table (41). A circular ring (43) is slidably assembled inside the assembly circular groove (42). A circular assembly groove is provided on the rear side of the circular ring (43). Several limiting blocks (45) are fixedly installed around the circumference of the circular ring (43) and are slidably connected to several limiting grooves. A nut (31) is rotatably assembled on the rear side of the circular ring (43). Several insertion grooves (46) are provided around the inner side of the circular assembly groove. An annular assembly block (47) is fixedly installed on the front side of the nut (31). An assembly groove (48) is provided around the circumference of the annular assembly block (47). A telescopic insertion component is provided inside the assembly groove (48). The telescopic insertion component is connected to one of the insertion grooves (46).
3. The brake pedal mounting mechanism according to claim 2, characterized in that: The telescopic plug assembly includes a plug block (5), which is slidably mounted inside the assembly groove (48). The plug block (5) has an inclined surface (51) on the side facing the tightening direction of the nut (31). A spring (52) is fixedly installed at the bottom of the plug block (5). One end of the spring (52) is fixedly connected to the inner wall of the bottom side of the assembly groove (48). The top of the plug block (5) extends into one of the plug grooves (46). A displacement groove (53) is provided on the rear side of the nut (31), and a pulling component is provided inside the displacement groove (53). The plug block (5) is connected to the pulling component through a steel wire rope (54).
4. The brake pedal mounting mechanism according to claim 1, characterized in that: The pulling assembly includes a drive block (6), which is slidably mounted inside the displacement groove (53). One end of the wire rope (54) is fixedly connected to the bottom of the plug-in block (5), and the other end of the wire rope (54) extends into the displacement groove (53) and is fixedly connected to the bottom of the drive block (6). The left and right sides of the drive block (6) are both arc structures. The left and right sides inside the displacement groove (53) are provided with two circular locking blocks (55) arranged vertically. The drive block (6) is located between the two upper circular locking blocks (55) and the two lower circular locking blocks (55).
5. A brake pedal mounting mechanism according to claim 1, characterized in that: The rotating shaft (3) is provided with an oil storage tank (7) around its periphery.