Pedal Installation Assembly Fastening Device

Abstract

The present invention relates to the technical field of pedal installation, specifically a fastening device for a pedal installation assembly. An opening slot that fits the outer wall of the screw tube is provided on the insertion plate. The insertion plate is located between the stepped column and the elliptical block. A side plate frame located outside the folding wing plate is provided on the cross beam frame. A dislocation member that is inserted and matched with the extending long slot is provided on the side plate frame. A locking bolt is threadedly inserted into the screw tube, and the other end of the locking bolt is inserted into the screw hole. A traction assembly for pulling the cross beam frame is provided on the mounting plate. The beneficial effects are as follows: By setting the cooperation of the folding wing plate and the insertion screw sleeve, the connection length between the locking bolt and the mounting plate is increased, and the fastening strength is improved. At the same time, the traction of the traction assembly causes the folding wing plate to undergo elastic deformation, and while deforming, the purpose of fixing the circumferential angle and longitudinal sliding position of the locking screw sleeve is achieved, thereby improving the strength of the fastening connection and avoiding loosening of the connection position under impact.

Description

Technical Field

[0001] The present invention relates to the technical field of pedal installation, specifically a fastening device for a pedal installation assembly. Background Art

[0002] Multiple sets of pedals are installed on an automobile. Therefore, during installation, the pedals are usually placed on a pedal frame assembly, and then the assembly is fixed to the vehicle body through connecting parts such as bolts. In the prior art, holes are usually directly drilled in the pedal installation assembly, and then corresponding holes are drilled on the vehicle body. During installation, the installation holes are accurately aligned, and then fixed installation is achieved through bolts inserted into the holes.

[0003] Existing patent: CN202320269481.0, a novel pedal unlocking device, is arranged on a fixing plate for placing a pedal, and includes a base, a transmission device, and a triggering device. The base is arranged on the fixing plate, the transmission device is arranged on the base and is movably connected to the base. A latch is arranged on one side of the transmission device close to the pedal, and one end of the transmission device provided with the latch can move close to or away from the pedal. The triggering device is arranged on the base and is movably connected to the base. The triggering device contacts the transmission device. Triggering the triggering device can drive one end of the transmission device provided with the latch away from the pedal, unlocking the pedal, and the triggering device and the transmission device can automatically reset, locking the pedal automatically.

[0004] However, whether it is a fastening structure such as a latch or a bolt, the connection position is to drill a hole on one side of the pedal assembly and correspond to the screw hole of the mounting seat. Therefore, the connection length between the connecting part and the pedal assembly is only the thickness of the drilled hole of the pedal assembly, and the connecting side of the pedal assembly is mostly a thin plate structure. Thus, due to the limitation of the drilling depth, the connection length between the connecting part and the pedal is short. The solution is mostly to set a screw sleeve, but the existing screw sleeve will increase the connection gap between the pedal assembly and the mounting seat, and the screw sleeve itself also needs to be fixed additionally, resulting in a reduction in connection strength. Under the impact of multiple pedal uses, it is extremely easy to cause the screw sleeve to fall off. Summary of the Invention

[0005] The purpose of the present invention is to provide a fastening device for a pedal installation assembly to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] The fastening device for a pedal installation assembly includes a mounting plate and a mounting seat. Multiple sets of mounting hole assemblies are arranged on the mounting plate in a Z-shaped distribution, and screw holes corresponding to the mounting hole assemblies one by one are arranged on the mounting seat.

[0008] On the inner side of the port of the screw hole, there is an extension slot extending vertically. The mounting hole assembly includes a first stepped hole and a through hole. On the side wall of the mounting plate, there are multiple groups of folding wing plates, which correspond to the mounting hole assembly one by one, and the folding wing plates extend by folding 180 degrees. The first stepped hole is provided on the mounting plate. One end of the through hole communicates with the first stepped hole, and the other end of the through hole penetrates through the folding wing plate. A locking sleeve is inserted into the first stepped hole. On the locking sleeve, there is a screw tube extending along the through hole, and on the outer wall of the middle section of the screw tube, a stepped column and an elliptical block are arranged at intervals. The maximum outer diameter of the elliptical block is equal to the inner diameter of the through hole. There is a gap between the folding wing plate and the mounting plate. The interval between the stepped column and the elliptical block is opposite to the gap between the folding wing plate and the mounting plate. A cross beam frame is slidably inserted between a pair of symmetrically distributed folding wing plates. At both ends of the cross beam frame, there are insertion plates slidably inserted into the gap between the folding wing plate and the mounting plate. On the insertion plate, there is an opening slot that fits the outer wall of the screw tube. The insertion plate is located between the stepped column and the elliptical block. On the cross beam frame, there is a side plate frame located outside the folding wing plate. On the side plate frame, there is a misaligned part that cooperates with the extension slot for insertion. A locking bolt is threadedly inserted into the screw tube, and the other end of the locking bolt is inserted into the screw hole. On the mounting plate, there is a traction assembly for pulling the cross beam frame.

[0009] Preferably, on the end face of the mounting plate away from the folding wing plate, there is a controller. At the lower end of the controller, there is a pedal, and on the controller, there is a connector for electrical connection.

[0010] Preferably, the traction assembly includes a pull-through hole, a through hole, a pull-through bolt, and an adjusting nut. A through hole is provided at the middle position of the cross beam frame. On the mounting plate, there is a pull-through hole that coincides with the through hole. The pull-through bolt is inserted into the pull-through hole and the through hole, and the nut at one end of the pull-through bolt presses against the outer port of the through hole. At the other end of the pull-through bolt, an adjusting nut is rotatably installed by threading. The adjusting nut presses against the side wall of the mounting plate, and the threaded rotation of the adjusting nut pulls the cross beam frame closer to the side wall of the mounting plate.

[0011] Preferably, the locking sleeve presses against the stepped surface of the first stepped hole. In the locking sleeve, there is a second stepped hole. One end of the second stepped hole communicates with the screw tube. Between the locking sleeve and the screw tube, there is a stepped column. The stepped column is located in the inner hole of the first stepped hole, and the outer diameter of the stepped column is larger than the inner diameter of the screw tube. The end nut of the locking bolt presses against the stepped surface of the second stepped hole.

[0012] Preferably, the interval width between the stepped column and the elliptical block is larger than the thickness of the insertion plate. On the outer wall of the stepped column close to the elliptical block, there is a toothed ring, which is composed of multiple groups of teeth distributed in a circumferential array. The end faces of the multiple groups of teeth are processed by rounding. On the outer wall of the insertion plate close to the stepped column, there is an annular tooth groove that cooperates with the teeth. Through the traction of the traction assembly, the toothed ring is pressed against the annular tooth groove.

[0013] Preferably, the outer diameter of the elliptical block is greater than the outer diameter of the screw tube, and the outer diameter of the screw tube is equal to the width of the opening slot. By rotating the locking sleeve, the elliptical block is misaligned and pressed on the insertion plate, and one end of the opening slot is provided with an opening penetrating the insertion plate.

[0014] Preferably, a plurality of groups of positioning holes distributed in a circumferential array are arranged on the stepped surface of the first stepped hole, positioning columns that are matched and inserted with the positioning holes are arranged on the locking sleeve, and the length of the positioning column is less than one-third of the distance that the traction assembly tractions the cross beam frame to move towards the mounting plate.

[0015] Preferably, the misalignment member includes a convex tube and an extension plate. A stud is arranged on the cross beam frame, one end of the side plate frame is fixed by a mounting bolt inserted on the stud, the other end of the side plate frame is provided with a convex tube that coincides with the through hole, the inner diameter of the convex tube is equal to the outer diameter of the screw tube, an extension plate is arranged on the arc outer wall of the convex tube, and the extension plate is inserted into the extended long slot, and the width of the extended long slot is greater than the thickness of the extension plate.

[0016] Preferably, the extension plate is arranged on the arc outer wall near the outer port of the convex tube, and a clearance slot adapted to the thickness between the extended long slot and the outer wall of the mounting seat is arranged between the extension plate and the side plate frame.

[0017] Preferably, the folding flap is made of an elastic plate material. One end of the folding flap is fixed to the side wall of the mounting plate, the folding position between the folding flap and the mounting plate is connected by a three-quarter round tube, and the end faces of the folding flap and the mounting plate are parallel to each other.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] By setting the cooperation of the folding flap and the insertion sleeve, the present invention increases the connection length between the locking bolt and the mounting plate, improves the fastening strength, and at the same time uses the traction of the traction assembly to cause elastic deformation of the folding flap, and achieves the purpose of fixing the circumferential angle and longitudinal sliding position of the locking sleeve while deforming, thereby improving the strength of the fastening connection and avoiding loosening of the connection position under impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic three-dimensional structure diagram of the pedal installation assembly of the present invention;

[0021] Figure 2 is a schematic three-dimensional structure diagram of the present invention;

[0022] Figure 3 is a schematic rear three-dimensional structure diagram of the present invention;

[0023] Figure 4 is a schematic three-dimensional structure diagram of the cross beam frame of the present invention inserted and installed on the folding flap;

[0024] Figure 5 Schematic diagram of the end cross-section of the present invention;

[0025] Figure 6 Schematic three-dimensional structure diagram of the folding flap of the present invention mounted on the mounting plate;

[0026] Figure 7 Schematic three-dimensional structure diagram of the locking sleeve of the present invention;

[0027] Figure 8 Schematic three-dimensional structure diagram of the locking sleeve and the crossbeam frame of the present invention;

[0028] Figure 9 Schematic front three-dimensional structure diagram of the crossbeam frame of the present invention;

[0029] Figure 10 Schematic rear three-dimensional structure diagram of the crossbeam frame of the present invention;

[0030] Figure 11 Schematic top-down three-dimensional structure diagram of the crossbeam frame of the present invention;

[0031] Figure 12 Schematic three-dimensional structure diagram of the locking sleeve of the present invention

[0032] Figure 13 Rear view of the present invention;

[0033] Figure 14 is Figure 13 Schematic diagram of the A-A cross-section in;

[0034] Figure 15 is Figure 14 Enlarged view of the structure at A in.

[0035] In the figure: 1. Mounting plate; 2. Folding flap; 3. Controller; 4. Pedal; 5. First stepped hole; 6. Positioning hole; 7. Opposing hole; 8. Through hole; 9. Opposing bolt; 10. Adjusting nut; 11. Locking sleeve; 12. Joint; 13. Locking bolt; 14. Second stepped hole; 15. Crossbeam frame; 16. Side plate frame; 17. Mounting bolt; 18. Convex tube; 19. Extension plate; 20. Through hole; 21. Stud; 22. Insertion plate; 23. Positioning post; 24. Stepped post; 25. Gear ring; 26. Oval block; 27. Screw tube; 28. Annular tooth groove; 29. Clearance groove; 30. Mounting seat; 31. Screw hole; 32. Extension long slot; 33. Open slot. Detailed implementation mode

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0037] Please refer to Figures 1 to 15 , the present invention provides a technical solution:

[0038] As Figures 1 to 4 shown, the pedal mounting assembly fastening device includes a mounting plate 1 and a mounting seat 30. A plurality of mounting hole assemblies distributed in a Z-shape are provided on the mounting plate 1. Screw holes 31 corresponding to the mounting hole assemblies one by one are provided on the mounting seat 30. A controller 3 is provided on the end face of the mounting plate 1 away from the folding wing plate 2. A pedal 4 is provided at the lower end of the controller 3. A connector 12 electrically connected is provided on the controller 3.

[0039] Among them, the controller 3 can be set as a control device such as a brake or an accelerator. By setting the mounting hole assemblies to correspond to the screw holes 31, the mounting plate 1 is fixed on the mounting seat 30.

[0040] As Figure 6 shown, a vertically extending elongated slot 32 is provided inside the port of the screw hole 31. The mounting hole assembly includes a first stepped hole 5 and a through hole 8. A plurality of folding wing plates 2 are provided on the side wall of the mounting plate 1. The folding wing plates 2 correspond to the mounting hole assemblies one by one, and the folding wing plates 2 extend by 180 degrees in a folded manner.

[0041] By setting the folding wing plates 2, the thickness of the mounting plate 1 is increased, and thus the length of the connection between the locking bolt 13 and the mounting plate 1 is increased.

[0042] As Figure 5 , 7 , 12 shown, the first stepped hole 5 is provided on the mounting plate 1. One end of the through hole 8 communicates with the first stepped hole 5. The other end of the through hole 8 penetrates the folding wing plate 2. A locking sleeve 11 is inserted into the first stepped hole 5. A screw tube 27 extending along the through hole 8 is provided on the locking sleeve 11. A stepped column 24 and an elliptical block 26 are spaced apart on the outer wall of the middle section of the screw tube 27. The maximum outer diameter of the elliptical block 26 is equal to the inner diameter of the through hole 8. A gap is left between the folding wing plate 2 and the mounting plate 1. The gap between the stepped column 24 and the elliptical block 26 faces the gap between the folding wing plate 2 and the mounting plate 1.

[0043] By setting the stepped column 24 and the elliptical block 26, an interval is formed in the middle section of the screw tube 27, facilitating the insertion of the insertion plate 22.

[0044] As Figure 10 ,11 As shown, a crossbeam frame 15 is slidably inserted between a pair of folding wing plates 2 symmetrically distributed. Plug plates 22 are arranged at both ends of the crossbeam frame 15 and are slidably inserted into the gap between the folding wing plates 2 and the mounting plate 1. An opening slot 33 that fits against the outer wall of the screw tube 27 is arranged on the plug plate 22. The plug plate 22 is located between the stepped column 24 and the elliptical block 26.

[0045] The insertion of the plug plate 22 is realized by setting the opening slot 33. Furthermore, the spaced outer walls of the middle section of the screw tube 27 are clamped by using the opening slot 33, thus forming a vertical connection between the plug plate 22 and the screw tube 27.

[0046] As Figures 8 to 11 shown, a side plate frame 16 is arranged on the crossbeam frame 15 and is located outside the folding wing plates 2. A misalignment member that is fitted and inserted with the extension long slot 32 is arranged on the side plate frame 16. The misalignment member includes a convex tube 18 and an extension plate 19. A stud 21 is arranged on the crossbeam frame 15. One end of the side plate frame 16 is fixed by a mounting bolt 17 inserted on the stud 21. The other end of the side plate frame 16 is provided with a convex tube 18 that coincides with the through hole 8. The inner diameter of the convex tube 18 is equal to the outer diameter of the screw tube 27. An extension plate 19 is arranged on the arc outer wall of the convex tube 18. The extension plate 19 is inserted into the extension long slot 32. The width of the extension long slot 32 is greater than the thickness of the extension plate 19. The extension plate 19 is arranged on the arc outer wall near the outer port of the convex tube 18. A clearance slot 29 that adapts to the thickness between the extension long slot 32 and the outer wall of the mounting seat 30 is arranged between the extension plate 19 and the side plate frame 16.

[0047] Through the cooperation of the stud 21 and the mounting bolt 17, the fixed installation of the side plate frame 16 is realized. The folding wing plates 2 are clamped by using the side plate frame 16 and the crossbeam frame 15. The vertical misalignment limitation between the side plate frame 16 and the screw hole 31 is formed by inserting the extension plate 19 into the extension long slot 32, realizing lateral support. When the pedal 4 is under pressure or reset, it has a downward pressing or upward impact on the installation position of the mounting plate 1. The bearing area is increased by the extension plate 19 to prevent the locking bolt 13 from loosening in the screw hole 31, and it is used to buffer the impact when the pedal 4 is under pressure and reset.

[0048] As Figures 13 to 15As shown, a locking bolt 13 is threadedly inserted into the solenoid 27, and the other end of the locking bolt 13 is inserted into the screw hole 31. A traction assembly for the pulling crossbeam frame 15 is provided on the mounting plate 1. The traction assembly includes a pulling hole 7, a through hole 20, a pulling bolt 9, and an adjusting nut 10. A through hole 20 is provided at the middle position of the crossbeam frame 15, and a pulling hole 7 coinciding with the through hole 20 is provided on the mounting plate 1. The pulling bolt 9 is inserted into the pulling hole 7 and the through hole 20, and the nut at one end of the pulling bolt 9 is pressed against the outer port of the through hole 20. The other end of the pulling bolt 9 is rotatably mounted with a thread on the adjusting nut 10, and the adjusting nut 10 is pressed against the side wall of the mounting plate 1. The threaded rotation of the adjusting nut 10 pulls the crossbeam frame 15 closer to the side wall of the mounting plate 1.

[0049] The traction of the crossbeam frame 15 is realized by setting the traction assembly. During the adjustment process, by the threaded rotation of the adjusting nut 10 on the pulling bolt 9, the crossbeam frame 15 is pulled to slide towards the mounting plate 1 side, so that the crossbeam frame 15 is tightly pressed against the stepped column 24. At the same time, due to the clamping action on the folding wing plate 2, the folding wing plate 2 is synchronously driven to elastically deform and tilt towards the mounting plate 1 side, so that the folding wing plate 2, the mounting plate 1, the locking sleeve 11, and the crossbeam frame 15 are mutually attached and fixed, avoiding the occurrence of gaps causing subsequent connection looseness.

[0050] Working principle: First, insert the locking sleeve 11 into the through hole 8, and then insert the crossbeam frame 15 along the gap between the folding wing plate 2 and the mounting plate 1, so that the opening slot 33 of the insertion plate 22 is inserted between the stepped column 24 and the elliptical block 26. Then rotate the locking sleeve 11 to misalign the elliptical block 26 with the opening slot 33, realizing the insertion limit of the locking sleeve 11 and preventing the locking sleeve 11 from falling off.

[0051] Then install the side plate frame 16 on the outside of the crossbeam frame 15, and use the cooperation of the pulling bolt 9 and the adjusting nut 10 to realize the limit installation of the crossbeam 15 on the mounting plate 1. By rotating the mounting bolt 17 on the stud 21, the side plate frame 16 is tightly pressed against the outer wall of the folding wing plate 2. Using the adjusting nut 10 to pull the crossbeam frame 15, the crossbeam frame 15 slides towards the mounting plate 1 side. Due to the cooperation of the insertion plate 22 and the side plate frame 16, the clamping action on the folding wing plate 2 is realized, and the folding wing plate 2 is synchronously driven to elastically deform and tilt towards the mounting plate 1 side, so that the folding wing plate 2, the mounting plate 1, the locking sleeve 11, and the crossbeam frame 15 are mutually attached and fixed, avoiding the occurrence of gaps causing subsequent connection looseness, achieving the purpose of tightly locking the locking sleeve 11 and preventing it from falling off.

[0052] Insert the extension plate 19 into the extension long groove 32, and fix the mounting plate 1 on the screw hole 31 of the mounting seat 30 through the locking bolt 13. During the installation process, use the folding wing plate 2 to increase the thickness of the mounting plate 1, thereby increasing the length of the connection between the locking bolt 13 and the mounting plate 1, improving the fastening strength. At the same time, use the traction of the traction component to cause the folding wing plate to elastically deform, and achieve the purpose of fixing the circumferential angle and longitudinal sliding position of the locking sleeve during deformation, thereby improving the strength of the fastening connection and avoiding loosening of the connection position under impact.

[0053] Embodiment 2: As Figure 2 、 6 shown, on the basis of Embodiment 1, in order to further improve the fixing strength of the axial rotation of the locking sleeve 11, the locking sleeve 11 is pressed on the stepped surface of the first stepped hole 5. A second stepped hole 14 is provided in the locking sleeve 11. One end of the second stepped hole 14 is communicated with the screw tube 27. A stepped column 24 is provided between the locking sleeve 11 and the screw tube 27. The stepped column 24 is located in the inner hole of the first stepped hole 5, and the outer diameter of the stepped column 24 is greater than the inner diameter of the screw tube 27. The end nut of the locking bolt 13 is pressed on the stepped surface of the second stepped hole 14.

[0054] By setting the structure of the stepped hole, the limit installation of the locking sleeve 11 and the locking bolt 13 is realized.

[0055] As Figure 10 、 12 shown, the spacing width between the stepped column 24 and the elliptical block 26 is greater than the thickness of the insertion plate 22. A toothed ring 25 is provided on the outer wall of the stepped column 24 close to the elliptical block 26. The toothed ring 25 is composed of multiple groups of teeth distributed in a circumferential array. The end faces of the multiple groups of teeth are processed by rounding. An annular tooth groove 28 matching the teeth is provided on the outer wall of the insertion plate 22 close to the stepped column 24. The toothed ring 25 is pressed into the annular tooth groove 28 by the traction of the traction component.

[0056] By setting the cooperation between the toothed ring 25 and the annular tooth groove 28, the frictional force of the axial rotation is increased. When the traction component drives the insertion plate 22 to move towards the stepped column 24, the toothed ring 25 is stuck in the annular tooth groove 28 to form an axial misalignment, thereby increasing the friction and avoiding axial deflection. At the same time, through the rounding treatment, the stability of the cooperation and insertion between the toothed ring 25 and the annular tooth groove 28 is ensured.

[0057] As Figure 6 、 7, as shown in Fig. 12, the outer diameter of the elliptical block 26 is greater than the outer diameter of the screw tube 27, and the outer diameter of the screw tube 27 is equal to the width of the open slot 33. By rotating the locking sleeve 11, the elliptical block 26 is misaligned and pressed on the insertion plate 22. One end of the open slot 33 is provided with an opening penetrating the insertion plate 22. On the stepped surface of the first stepped hole 5, multiple groups of positioning holes 6 are arranged in a circumferential array. The locking sleeve 11 is provided with positioning posts 23 that are inserted and matched with the positioning holes 6. The length of the positioning posts 23 is less than one-third of the distance that the traction assembly pulls the crossbeam frame 15 towards the mounting plate 1.

[0058] By setting the insertion of the positioning posts 23 into the positioning holes 6, the axial position of the locking sleeve 11 is further fixed. By limiting its length, the folding flap 2 can be elastically deformed under manual traction, and then the insertion and installation of the positioning posts 23 into the positioning holes 6 can be realized, making its relative movement independent of the rotation of the elliptical block 26 without mutual interference. That is, when it is necessary to adjust the rotational misalignment of the elliptical block 26, the positioning posts 23 can be disengaged from the positioning holes 6 by slightly deforming the folding flap 2 through extrusion, and then the rotational misalignment can be realized. After the adjustment is completed, the folding flap 2 automatically resets, and the positioning posts 23 are re-inserted into the positioning holes 6.

[0059] As Figure 6 , 7 , as shown in Fig. 8, the folding flap 2 is made of an elastic plate. One end of the folding flap 2 is fixed to the side wall of the mounting plate 1. The folding position between the folding flap 2 and the mounting plate 1 is connected by a three-quarter round tube. The end faces of the folding flap 2 and the mounting plate 1 are parallel to each other.

[0060] By setting a three-quarter round tube to connect the bending position between the folding flap 2 and the mounting plate 1, the amplitude of elastic deformation is increased, avoiding the fracture of the connection position due to the elastic deformation caused by the traction assembly.

[0061] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pedal mounting assembly fastening device, comprising a mounting plate (1) and a mounting seat (30), wherein the mounting plate (1) is provided with a plurality of mounting hole assemblies distributed in a Z shape, and the mounting seat (30) is provided with screw holes (31) corresponding to the mounting hole assemblies one by one, characterized in that: A vertically extending elongated slot (32) is provided on the inner side of the end of the screw hole (31); the mounting hole assembly comprises a first stepped hole (5) and a through hole (8); a plurality of groups of folding wing plates (2) are provided on the side wall of the mounting plate (1); the folding wing plates (2) correspond to the mounting hole assemblies one by one, and the folding wing plates (2) are folded and extended at 180 degrees; the first stepped hole (5) is provided on the mounting plate (1); one end of the through hole (8) is connected to the first stepped hole (5); The other end of the through hole (8) passes through the folded wing plate (2), a locking screw sleeve (11) is inserted into the first stepped hole (5), a screw tube (27) extending along the through hole (8) is arranged on the locking screw sleeve (11), and a stepped column (24) and an elliptical block (26) are arranged on the outer wall of the middle section of the screw tube (27), the maximum outer diameter of the elliptical block (26) is equal to the inner diameter of the through hole (8), and a gap is left between the folded wing plate (2) and the mounting plate (1). The gap between the step column (24) and the elliptical block (26) is opposite to the gap between the folding wing plate (2) and the mounting plate (1), and a crossbeam frame (15) is slidably inserted between the pair of symmetrically distributed folding wing plates (2). Both ends of the crossbeam frame (15) are provided with plug plates (22) slidably inserted in the gap between the folding wing plate (2) and the mounting plate (1). The plug plate (22) is provided with an open slot (33) that fits the outer wall of the screw tube (27). (22) is located between the step column (24) and the elliptical block (26), the cross beam frame (15) is provided with a side plate frame (16) located outside the folded wing plate (2), the side plate frame (16) is provided with a dislocation piece that cooperates with the extended long groove (32), a locking bolt (13) is threadedly inserted in the screw tube (27), and the other end of the locking bolt (13) is inserted in the screw hole (31), and a traction component for pulling the cross beam frame (15) is provided on the mounting plate (1); The traction assembly comprises a tension hole (7), a through hole (20), a tension bolt (9) and an adjusting nut (10); the through hole (20) is provided at a middle position of the crossbeam frame (15); the mounting plate (1) is provided with a tension hole (7) that coincides with the through hole (20); the tension bolt (9) is inserted into the tension hole (7) and the through hole (20); a nut at one end of the tension bolt (9) is pressed onto an outer end of the through hole (20); and the adjusting nut (10) is threadedly mounted on the other end of the tension bolt (9). The adjusting nut (10) is pressed onto the side wall of the mounting plate (1), and the thread of the adjusting nut (10) rotates the traction beam frame (15) toward the side wall of the mounting plate (1); a plurality of groups of positioning holes (6) distributed in a circumferential array are provided on the stepped surface of the first stepped hole (5), and a positioning column (23) is provided on the locking screw sleeve (11) to be plugged into and matched with the positioning hole (6), and the length of the positioning column (23) is less than one third of the moving distance of the traction assembly traction beam frame (15) toward the mounting plate (1).

2. The pedal mounting assembly fastening device according to claim 1, characterized in that: A controller (3) is arranged on the end surface of the mounting plate (1) away from the folding wing plate (2), a pedal (4) is arranged at the lower end of the controller (3), and a connector (12) for electrical connection is arranged on the controller (3).

3. The pedal mounting assembly fastening device according to claim 2, characterized in that: The locking screw sleeve (11) is pressed onto the stepped surface of the first stepped hole (5); a second stepped hole (14) is provided in the locking screw sleeve (11); one end of the second stepped hole (14) is communicated with the screw tube (27); a stepped column (24) is provided between the locking screw sleeve (11) and the screw tube (27); the stepped column (24) is located in the inner hole of the first stepped hole (5); and the outer diameter of the stepped column (24) is greater than the inner diameter of the screw tube (27); and the end nut of the locking bolt (13) is pressed onto the stepped surface of the second stepped hole (14).

4. The pedal mounting assembly fastening device according to claim 3, characterized in that: The width of the interval between the step column (24) and the elliptical block (26) is greater than the thickness of the insert plate (22); a gear ring (25) is provided on the outer wall of the step column (24) on one side close to the elliptical block (26); the gear ring (25) is composed of a plurality of groups of teeth distributed in a circumferential array; the end faces of the plurality of groups of teeth are rounded; an annular tooth groove (28) cooperating with the teeth is provided on the outer wall of the insert plate (22) on one side close to the step column (24); the gear ring (25) is pressed into the annular tooth groove (28) by the traction of the traction assembly.

5. The pedal mounting assembly fastening device according to claim 4, characterized in that: The outer diameter of the elliptical block (26) is greater than the outer diameter of the screw tube (27), and the outer diameter of the screw tube (27) is equal to the width of the opening slot (33). The elliptical block (26) is displaced and pressed onto the plug plate (22) by rotating the locking screw sleeve (11), and one end of the opening slot (33) is provided with an opening penetrating the plug plate (22).

6. The pedal mounting assembly fastening device according to claim 1, characterized in that: The dislocation member comprises a convex tube (18) and an extension plate (19), a stud (21) is provided on the crossbeam frame (15), one end of the side plate frame (16) is fixed by a mounting bolt (17) inserted into the stud (21), the other end of the side plate frame (16) is provided with a convex tube (18) overlapping with the through hole (8), the inner diameter of the convex tube (18) is equal to the outer diameter of the screw tube (27), an extension plate (19) is provided on the arc outer wall of the convex tube (18), the extension plate (19) is inserted into the extension slot (32), and the width of the extension slot (32) is greater than the thickness of the extension plate (19).

7. The pedal mounting assembly fastening device according to claim 6, characterized in that: The extension plate (19) is arranged on the arc outer wall close to the outer end of the convex tube (18), and a gap groove (29) is arranged between the extension plate (19) and the side plate frame (16) to match the thickness between the extension slot (32) and the outer wall of the mounting seat (30).

8. The pedal mounting assembly fastening device according to claim 1, characterized in that: The foldable wing plate (2) is configured as an elastic plate, one end of the foldable wing plate (2) is fixed to the side wall of the mounting plate (1), the foldable position between the foldable wing plate (2) and the mounting plate (1) is connected via a three-quarter circular tube, and the end faces of the foldable wing plate (2) and the mounting plate (1) are parallel to each other.

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