A multi-layer sealed automobile side pedal support structure and installation method thereof

Abstract

The present invention relates to the technical field of automobile side pedal support structure, and in particular to a multi-layer sealed automobile side pedal support structure and an installation method thereof, comprising a support assembly, a fastener and a side pedal, wherein one end of the support assembly is fixedly connected to the fastener, and one end of the fastener is fixedly connected to the side pedal; the side pedal comprises a pedal, one side of the pedal is fixedly connected to a limiting plate, one side of the limiting plate is fixedly connected to a limiting block, limiting grooves are provided on both sides of the pedal, installation grooves are provided on both sides of the pedal, one side of the pedal is fixedly connected to a cleaning device, the cleaning device comprises a fixing rod, a fixing piece is fixedly connected to the inner side of the fixing rod, one side of the fixing rod is fixedly connected to an elastic sheet, the elastic sheet comprises an elastic sheet main body, and cleaning pads are fixedly connected to both sides of the elastic sheet main body. In the present invention, the cleaning device provided can effectively clean dust and dirt on the side pedal during the extension and retraction process, and reduce dust entry, prevent passengers from slipping when getting on the vehicle, and reduce the risk of passengers falling.

Description

Technical Field

[0001] The invention relates to the technical field of automobile side pedal support structures, in particular to a multi-layer sealed automobile side pedal support structure and a mounting method thereof. Background Art

[0002] The multi-layer sealed automobile side pedal support structure is a vehicle accessory that aims to provide a side pedal system with reasonable structure, easy installation and sufficient strength. This structure usually includes components such as the pedal body, pedal bracket, support seat, limit plate, slider, guide groove, and possible multi-layer design to enhance its stability and durability.

[0003] The steps for using the multi-layer sealed automobile side pedal support structure are as follows: first, make sure that the pedal is aligned with the reserved hole or fixing point of the vehicle threshold; second, fix the pedal bracket to the vehicle threshold with bolts or special fasteners; then, adjust the pedal to a suitable position to ensure that the pedal is parallel and stable to the vehicle body; then, check whether all connecting parts are firm and not loose; finally, conduct an actual stepping test to ensure that the pedal has good load-bearing performance and no abnormal sound or shaking, and regularly check and maintain the pedal connection parts to keep them clean and extend their service life;

[0004] The side pedals are the only way for passengers to get on and off the bus. When driving in muddy, slippery or dusty conditions, the side pedals are frequently used and directly contact the outside environment, so the surface of the side pedals is easily contaminated with dirt. At the same time, the land surface is slippery in rainy and snowy weather, which increases the inconvenience of getting on and off the bus. Passengers may step on the side pedals more frequently, which increases the accumulation of dirt, resulting in reduced grip of the side pedals, making it easy for passengers to slip when getting on the bus, increasing the risk of passengers falling;

[0005] Therefore, in order to solve the above problems, a multi-layer sealed automobile side pedal support structure and an installation method thereof are proposed. Summary of the invention

[0006] The object of the present invention is to provide a multi-layer sealed automobile side pedal support structure and an installation method thereof, so as to solve the problem mentioned in the above background technology that rainy and snowy weather increases the inconvenience when getting on and off the vehicle, and passengers may step on the side pedals more frequently, thereby increasing the accumulation of dirt, resulting in reduced grip of the side pedals, making it easy for passengers to slip when getting on the vehicle, and increasing the risk of passengers falling.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A multi-layer sealed automobile side pedal support structure and an installation method thereof, comprising a support assembly, a fastener and a side pedal, wherein one end of the support assembly is fixedly connected to the fastener, and one end of the fastener is fixedly connected to the side pedal; the side pedal comprises a pedal, one side of the pedal is fixedly connected to a limiting plate, one side of the limiting plate is fixedly connected to a limiting block, limiting grooves are provided on both sides of the pedal, mounting grooves are provided on both sides of the pedal, one side of the pedal is fixedly connected to a cleaning device, the cleaning device comprises a fixing rod, a fixing piece is fixedly connected to the inner side of the fixing rod, one side of the fixing rod is fixedly connected to an elastic sheet, the elastic sheet comprises an elastic sheet body, and both sides of the elastic sheet body A cleaning pad is fixedly connected, and a cleaning hole is provided on one side of the cleaning pad; a telescopic device is slidably connected to the inner side of the limiting groove, and the telescopic device includes a telescopic plate, sliders are fixedly connected on both sides of the telescopic plate, an anti-slip strip is fixedly connected to the upper end of the telescopic plate, mounting blocks are fixedly connected on both sides of the telescopic plate, a sliding groove is provided on the inner side of the telescopic plate, a guide block is slidably connected to the inner side of the sliding groove, a guide hole is provided on the inner side of the guide block, a guide column is slidably connected to the inner side of the guide hole, guide assemblies are fixedly connected to both ends of the guide column, a guide rod is fixedly connected to one side of the guide block, a spring is fixedly connected to the outer side of the telescopic plate, and a stopper is fixedly connected to one end of the guide rod.

[0009] As a further optimization of the present invention, there are a plurality of anti-slip strips, which are evenly and equidistantly distributed on the upper end of the telescopic plate, the vertical cross-section of the anti-slip strip is semicircular, and the anti-slip strips are parallel to each other.

[0010] As a further optimization of the present invention, there are several limit blocks, the anti-slip strips are evenly and equidistantly distributed on one side of the limit plate, the cross-section of the limit plate is triangular, the anti-slip strips are parallel to each other, and the height of the anti-slip strips is equal to the height of the limit plate.

[0011] As a further optimization of the present invention, there are two limit grooves and two sliders, the two limit grooves are symmetrically arranged on the inner side of the pedal, the two sliders are symmetrically arranged on one side of the telescopic plate, and the limit grooves and the sliders correspond to each other.

[0012] As a further optimization of the present invention, there are two mounting blocks and two mounting grooves, the two mounting blocks are symmetrically arranged on one side of the telescopic plate, the mounting blocks are symmetrically arranged on one side of the pedal, and the mounting blocks and the mounting grooves correspond to each other.

[0013] As a further optimization of the present invention, the guide rod and the guide assembly are both slidably connected to the inner side of the telescopic plate, the other end of the spring is fixedly connected to one side of the stop block, the stop block is arranged between the limit blocks, and the cross-section of the stop block is a triangle.

[0014] As a further optimization of the present invention, there are a plurality of elastic sheets, the fixing member passes through the elastic sheet and is fixedly connected to one side of the pedal, the elastic sheets are evenly and equidistantly distributed on the inner side of the fixing rod, and the elastic sheets are parallel to each other.

[0015] As a further optimization of the present invention, two cleaning pads are provided, the cleaning pads are symmetrically arranged on the outside of the elastic sheet body, the cleaning pads are arranged at one end of the elastic sheet body, and the cleaning pads are parallel to each other.

[0016] As a further optimization of the present invention, there are a plurality of cleaning holes, the vertical cross-section of the cleaning holes is hexagonal, the cleaning holes are evenly and equidistantly distributed on one side of the cleaning pad, and the cleaning holes are parallel to each other.

[0017] S1: Before starting the installation, find the reserved holes on the vehicle threshold. These holes are used to fix the support assembly through fasteners. When installing, do not tighten the fasteners first to facilitate adjustment. Align the side pedal with the support assembly and put it in place, then tighten the fasteners connecting the side pedal and the support assembly. Make sure that the side pedal is installed flat without obvious gaps, and adjust the position of the support assembly.

[0018] S2: After installation, check all fasteners and connection points to ensure they are secure, test the load-bearing capacity of the side step to ensure safety, pay attention to details during installation, such as avoiding scratches on the paint, and ensure that all parts are properly installed in place. Finally, check the installation effect again to ensure that the side step is secure and coordinated with the body;

[0019] S3: When in use, you need to press the guide assembly first, and the guide assembly will drive the guide column to move. According to the trajectory of the guide hole, the movement of the guide column will drive the guide block to move, and at the same time drive the guide rod and the stopper to move, and squeeze the spring at the same time. When the stopper moves a certain distance, it will be separated from the limit blocks. At the same time, you need to manually buckle the mounting blocks set at both ends of the telescopic plate and pull them out. When you pull out the required distance, you will be separated from the pressure on the guide assembly, and the telescopic force of the set spring will insert the guide block between the limit plates to achieve the limit effect;

[0020] S4: When the telescopic plate needs to be retracted, the above steps need to be repeated to push the telescopic plate to the inside of the side pedal and limit it. When the telescopic plate is retracted, the cleaning device provided can effectively clean the dust and dirt on the surface of the telescopic plate, enhance the grip of the telescopic plate 41, and effectively reduce the maintenance cost. When the telescopic plate is fully closed, the cleaning device provided can effectively reduce the entry of dust and effectively keep it clean.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, the length of the side pedal can be adjusted according to actual needs through the telescopic device, which meets the use requirements of different passengers and scenes and improves the practical effect. The cleaning device can effectively clean dust and dirt during the telescopic process, reduce maintenance costs and keep it clean, reduce dust entry, and improve the functionality and durability of the side pedal as a whole, bringing better use experience to users;

[0023] 2. In the present invention, the anti-skid strips can provide effective anti-skid effect for passengers to step on, enhance the grip, and greatly improve the safety of use. Secondly, it is convenient to clean dust and is conducive to daily maintenance. At the same time, the anti-skid strips are arranged in parallel with each other, making the appearance more neat and beautiful.

[0024] 3. In the present invention, the guide block is provided to cooperate with the guide column through the guide hole, so that the telescopic action is more stable and smooth, ensuring the stability of the telescopic plate during use. The guide rod is connected to the stopper, and under the action of the spring, the telescopic plate can be effectively limited to ensure that the telescopic plate can maintain a stable position in different states;

[0025] 4. In the present invention, the cleaning pad provided can effectively clean the dust and dirt on the surface of the telescopic plate, keep the telescopic plate clean, enhance its grip, and provide passengers with a safer stepping experience. Secondly, the hexagonal cleaning holes evenly and equidistantly distributed on the cleaning pad have a stable structure and can be evenly stressed in all directions, making the cleaning pad more sturdy and durable during use. During the extension and retraction process of the telescopic plate, the cleaning pad always plays a cleaning role, reducing maintenance costs, while reducing dust entry and keeping the inside of the side pedal clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall structure of the side pedal of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the telescopic device of the present invention;

[0029] Figure 4 It is a schematic diagram of the overall structure of the telescopic device of the present invention;

[0030] Figure 5 This is a schematic diagram of the installation position structure of the limit block of the present invention;

[0031] Figure 6 It is a schematic diagram of the cross-sectional structure of the telescopic plate of the present invention;

[0032] Figure 7 It is a schematic diagram of the overall structure of the cleaning device of the present invention;

[0033] Figure 8 It is a schematic diagram of the overall structure of the elastic sheet of the present invention.

[0034] In the figure: 1. Support assembly;

[0035] 2. Fasteners;

[0036] 3. Side pedal; 31. Pedal; 32. Limiting plate; 33. Limiting block; 34. Limiting slot; 35. Mounting slot; 36. Cleaning device; 361. Fixing rod; 362. Fixing piece; 363. Elastic sheet; 3631. Elastic sheet body; 3632. Cleaning pad; 3633. Cleaning hole;

[0037] 4. Telescopic device; 41. Telescopic plate; 42. Sliding block; 43. Anti-slip strip; 44. Mounting block; 45. Slide groove; 46. Guide assembly; 47. Guide column; 48. Guide block; 49. Guide hole; 410. Guide rod; 411. Spring; 412. Stop block. DETAILED DESCRIPTION

[0038] See also Figure 1-8 , the present invention provides a technical solution:

[0039] A multi-layer sealed automobile side pedal support structure and an installation method thereof, comprising a support assembly 1, a fastener 2 and a side pedal 3, wherein one end of the support assembly 1 is fixedly connected to the fastener 2, and one end of the fastener 2 is fixedly connected to the side pedal 3; the side pedal 3 comprises a pedal 31, one side of the pedal 31 is fixedly connected to a limiting plate 32, one side of the limiting plate 32 is fixedly connected to a limiting block 33, limiting grooves 34 are provided on both sides of the pedal 31, mounting grooves 35 are provided on both sides of the pedal 31, one side of the pedal 31 is fixedly connected to a cleaning device 36, the cleaning device 36 comprises a fixing rod 361, a fixing piece 362 is fixedly connected to the inner side of the fixing rod 361, an elastic sheet 363 is fixedly connected to one side of the fixing rod 361, and the elastic sheet 363 comprises an elastic sheet body 3631, and the elastic sheet body 3631 is fixedly connected to the two sides of the elastic sheet body 3631. A cleaning pad 3632 is connected, and a cleaning hole 3633 is provided on one side of the cleaning pad 3632; a telescopic device 4 is slidably connected to the inner side of the limiting groove 34, and the telescopic device 4 includes a telescopic plate 41, sliders 42 are fixedly connected to the two sides of the telescopic plate 41, an anti-slip strip 43 is fixedly connected to the upper end of the telescopic plate 41, and mounting blocks 44 are fixedly connected to the two sides of the telescopic plate 41, a sliding groove 45 is provided on the inner side of the telescopic plate 41, and a guide block 48 is slidably connected to the inner side of the sliding groove 45, a guide hole 49 is provided on the inner side of the guide block 48, and a guide column 47 is slidably connected to the inner side of the guide hole 49, and guide assemblies 46 are fixedly connected to both ends of the guide column 47, a guide rod 410 is fixedly connected to one side of the guide block 48, a spring 411 is fixedly connected to the outer side of the telescopic plate 41, and a stopper 412 is fixedly connected to one end of the guide rod 410.

[0040] A plurality of anti-skid strips 43 are provided, and the anti-skid strips 43 are evenly and equidistantly distributed on the upper end of the telescopic plate 41. The shape of the vertical section of the anti-skid strips 43 is semicircular, and the anti-skid strips 43 are parallel to each other. The anti-skid strips 43 can effectively prevent slipping and enhance the grip of passengers when stepping on the ground. The anti-skid strips 43 provided in this way can facilitate dust cleaning; a plurality of limit blocks 33 are provided, and the anti-skid strips 43 are evenly and equidistantly distributed on one side of the limit plate 32. The shape of the cross section of the limit plate 32 is triangular, and the anti-skid strips 43 are parallel to each other. The height of the anti-skid strips 43 is equal to the height of the limit plate 32. The limit blocks 33 provided can effectively limit the telescopic plate 41 The position can effectively adjust the required length, which is convenient for passengers to use; there are two limit grooves 34 and sliders 42, the two limit grooves 34 are symmetrically arranged on the inner side of the pedal 31, and the two sliders 42 are symmetrically arranged on one side of the telescopic plate 41. The limit grooves 34 and the sliders 42 correspond to each other. Such an arrangement can effectively ensure that the overall structure is more reasonable; there are two mounting blocks 44 and mounting grooves 35, the two mounting blocks 44 are symmetrically arranged on one side of the telescopic plate 41, and the mounting blocks 44 are symmetrically arranged on one side of the pedal 31. The mounting blocks 44 and the mounting grooves 35 correspond to each other, and the mounting blocks 44 can effectively install the telescopic plate 41;

[0041] The guide rod 410 and the guide assembly 46 are both slidably connected to the inner side of the telescopic plate 41, and the other end of the spring 411 is fixedly connected to one side of the block 412. The block 412 is arranged between the limit blocks 33, and the cross section of the block 412 is triangular. Such an arrangement can make the overall structure more reasonable and facilitate the effective limitation of the telescopic plate 41; a plurality of elastic sheets 363 are arranged, and the fixing member 362 passes through the elastic sheet 363 and is fixedly connected to one side of the pedal 31. The elastic sheets 363 are evenly and equidistantly distributed on the inner side of the fixing rod 361. The elastic sheets 363 arranged parallel to each other can be when the telescopic plate 41 is fully closed. The cleaning device 36 arranged can effectively reduce the entry of dust and effectively keep it clean; the cleaning pad 3632 is arranged There are two cleaning pads 3632, which are symmetrically arranged on the outside of the elastic sheet body 3631. The cleaning pads 3632 are arranged at one end of the elastic sheet body 3631. The cleaning pads 3632 are parallel to each other. The arranged cleaning pads 3632 effectively clean the dust and dirt on the surface of the telescopic plate 41, and enhance the grip of the telescopic plate 41; there are a number of cleaning holes 3633, and the shape of the vertical section of the cleaning hole 3633 is hexagonal. The cleaning holes 3633 are evenly and equidistantly distributed on one side of the cleaning pad 3632, and the cleaning holes 3633 are parallel to each other. The cleaning holes 3633 are arranged in a hexagonal structure, which can make the structure more stable, can evenly distribute the force in all directions, and can make the hexagonal cleaning holes 3633 more sturdy and durable during use.

[0042] Before starting the installation, find the reserved holes on the vehicle door sill. These holes are used to fix the support assembly 1 through the fasteners 2. When installing, do not tighten the fasteners 2 first to facilitate adjustment. Align the side pedal 3 with the support assembly 1 and put it in place. Then tighten the fasteners 2 connecting the side pedal 3 and the support assembly 1. Make sure that the side pedal 3 is installed flat without obvious gaps, and adjust the position of the support assembly 1. After completing the installation, check whether all fasteners 2 and connection points are firm, test the load-bearing capacity of the side pedal 3 to ensure safety, pay attention to details during the installation process, such as avoiding scratches on the car paint, and ensure that all parts are correctly installed in place. Finally, check the installation effect again to ensure that the side pedal 3 is stable and coordinated with the car body. When using it, you need to press the guide assembly 46 first, and the guide assembly 46 will drive the guide column 47 to move. According to the trajectory of the guide hole 49, the movement of the guide column 47 will also drive the guide block 48 to move. , and at the same time drive the guide rod 410 and the stopper 412 to move, and at the same time squeeze the spring 411. When the stopper 412 moves a certain distance, it will be out of the limit block 33. At the same time, it is necessary to manually buckle the mounting blocks 44 set at both ends of the telescopic plate 41 and pull it out. When it is pulled out the required distance, it will be out of the pressure on the guide assembly 46, and the telescopic force of the set spring 411 will insert the guide block 48 between the limit plates 32 to achieve the limiting effect; when the telescopic plate 41 needs to be retracted, it is necessary to repeat the above steps, push the telescopic plate 41 into the inner side of the side pedal 3 and limit it. When the telescopic plate 41 is retracted, the cleaning device 36 set can effectively clean the dust and dirt on the surface of the telescopic plate 41, enhance the grip of the telescopic plate 41, and effectively reduce the maintenance cost. When the telescopic plate 41 is fully closed, the cleaning device 36 set can effectively reduce the entry of dust and effectively keep it clean.

[0043] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A multi-layer sealed automobile side pedal support structure, comprising a support assembly (1), a fastener (2) and a side pedal (3), characterized in that: One end of the support assembly (1) is fixedly connected to a fastener (2), and one end of the fastener (2) is fixedly connected to a side pedal (3); The side pedal (3) comprises a pedal (31), one side of the pedal (31) is fixedly connected to a limiting plate (32), one side of the limiting plate (32) is fixedly connected to a limiting block (33), both sides of the pedal (31) are provided with limiting grooves (34), both sides of the pedal (31) are provided with mounting grooves (35), one side of the pedal (31) is fixedly connected to a cleaning device (36), the cleaning device (36) comprises a fixing rod (361), the inner side of the fixing rod (361) is fixedly connected to a fixing member (362), one side of the fixing rod (361) is fixedly connected to an elastic sheet (363), the elastic sheet (363) comprises an elastic sheet body (3631), both sides of the elastic sheet body (3631) are fixedly connected to cleaning pads (3632), and one side of the cleaning pad (3632) is provided with a cleaning hole (3633); A telescopic device (4) is slidably connected to the inner side of the limiting groove (34), and the telescopic device (4) comprises a telescopic plate (41), sliders (42) are fixedly connected to both sides of the telescopic plate (41), an anti-slip strip (43) is fixedly connected to the upper end of the telescopic plate (41), mounting blocks (44) are fixedly connected to both sides of the telescopic plate (41), a sliding groove (45) is provided on the inner side of the telescopic plate (41), a guide block (48) is slidably connected to the inner side of the sliding groove (45), a guide hole (49) is provided on the inner side of the guide block (48), a guide column (47) is slidably connected to the inner side of the guide hole (49), guide assemblies (46) are fixedly connected to both ends of the guide column (47), a guide rod (410) is fixedly connected to one side of the guide block (48), a spring (411) is fixedly connected to the outer side of the telescopic plate (41), and a stopper (412) is fixedly connected to one end of the guide rod (410); A plurality of the limit blocks (33) are provided, the anti-slip strips (43) are evenly and equidistantly distributed on one side of the limit plate (32), the cross-section of the limit plate (32) is in the shape of a triangle, the anti-slip strips (43) are parallel to each other, and the height of the anti-slip strips (43) is equal to the height of the limit plate (32); Two of the limit grooves (34) and two of the slide blocks (42) are provided, the two limit grooves (34) are symmetrically arranged on the inner side of the pedal (31), the two slide blocks (42) are symmetrically arranged on one side of the telescopic plate (41), and the limit grooves (34) and the slide blocks (42) correspond to each other; Two of the mounting blocks (44) and the mounting grooves (35) are provided, the two mounting blocks (44) are symmetrically arranged on one side of the telescopic plate (41), the mounting blocks (44) are symmetrically arranged on one side of the pedal (31), and the mounting blocks (44) and the mounting grooves (35) correspond to each other; The guide rod (410) and the guide assembly (46) are both slidably connected to the inner side of the telescopic plate (41); the other end of the spring (411) is fixedly connected to one side of a stopper (412); the stopper (412) is arranged between the limit blocks (33); and the cross section of the stopper (412) is triangular; A plurality of elastic sheets (363) are provided, and the fixing member (362) passes through the elastic sheets (363) and is fixedly connected to one side of the pedal (31). The elastic sheets (363) are evenly and equidistantly distributed on the inner side of the fixing rod (361), and the elastic sheets (363) are parallel to each other.

2. The multi-layer sealed automobile side pedal support structure according to claim 1, characterized in that: A plurality of anti-slip strips (43) are provided, and the anti-slip strips (43) are evenly and equidistantly distributed on the upper end of the telescopic plate (41). The vertical cross-section of the anti-slip strip (43) is semicircular, and the anti-slip strips (43) are parallel to each other.

3. The multi-layer sealed automobile side pedal support structure according to claim 1, characterized in that: Two cleaning pads (3632) are provided. The cleaning pads (3632) are symmetrically arranged on the outside of the elastic sheet body (3631). The cleaning pads (3632) are arranged at one end of the elastic sheet body (3631). The cleaning pads (3632) are parallel to each other.

4. The multi-layer sealed automobile side pedal support structure according to claim 1, characterized in that: A plurality of cleaning holes (3633) are provided, and the shape of the vertical section of the cleaning hole (3633) is a hexagon. The cleaning holes (3633) are evenly and equidistantly distributed on one side of the cleaning pad (3632), and the cleaning holes (3633) are parallel to each other.

5. A method for installing a multi-layer sealed automobile side pedal support structure according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1: Before starting the installation, find the reserved holes on the door sill of the vehicle. These holes are used to fix the support assembly (1) through the fasteners (2). When installing, do not tighten the fasteners (2) first to facilitate adjustment. Align the side pedal (3) with the support assembly (1) and put it in place. Then tighten the fasteners (2) connecting the side pedal (3) and the support assembly (1). Ensure that the side pedal (3) is installed flat without obvious gaps, and adjust the position of the support assembly (1); S2: After installation, check whether all fasteners (2) and connection points are secure, test the load-bearing capacity of the side step (3) to ensure safety, pay attention to details during installation, ensure that all parts are properly installed, and finally check the installation effect again to ensure that the side step (3) is stable and coordinated with the body of the car; S3: When in use, it is necessary to first press the guide component (46), and the guide component (46) will drive the guide column (47) to move. According to the trajectory of the guide hole (49), the movement of the guide column (47) will drive the guide block (48) to move, and at the same time drive the guide rod (410) and the stopper (412) to move, and at the same time squeeze the spring (411). When the stopper (412) moves a certain distance, it will be separated from the limit blocks (33). At the same time, it is necessary to manually buckle the mounting blocks (44) set at both ends of the telescopic plate (41) and pull them out. When the required distance is pulled out, the pressure on the guide component (46) will be separated, and the telescopic force of the set spring (411) will insert the guide block (48) between the limit plates (32) to achieve the limit effect; S4: When the telescopic plate (41) needs to be retracted, the above steps need to be repeated to push the telescopic plate (41) into the inner side of the side pedal (3) and limit the position. When the telescopic plate (41) is retracted, the cleaning device (36) can effectively clean the dust and dirt on the surface of the telescopic plate (41), thereby enhancing the grip of the telescopic plate (41) and effectively reducing the maintenance cost. When the telescopic plate (41) is completely closed, the cleaning device (36) can effectively reduce the entry of dust and effectively keep it clean.

Images