Fastening device for pedal mounting assembly

Abstract

The invention relates to the technical field of pedal installation, in particular to a pedal installation assembly fastening device, an inserting plate is provided with an opening inserting groove attached to the outer wall of a solenoid, the inserting plate is located between a step column and an oval block, a cross beam frame is provided with a side plate frame located on the outer side of a turnover wing plate, and the side plate frame is provided with a dislocation piece matched and connected with an extending long groove in an inserted mode. The cross beam frame has the beneficial effects that the turnover wing plates are matched with the insertion screw sleeves, so that the connecting length between the locking bolts and the mounting plate is increased, the fastening strength is improved, and the cross beam frame is not prone to falling off, so that the cross beam frame is not prone to falling off, and the service life of the cross beam frame is prolonged. And meanwhile, the turnover wing plate is elastically deformed through traction of the traction assembly, and the purpose of fixing the circumferential angle and the longitudinal sliding position of the locking screw sleeve is achieved while deformation is conducted, so that the strength of fastening connection is improved, and looseness of the connection position caused by impact is avoided.

Description

Technical Field

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

[0002] A car is equipped with multiple sets of pedals. Therefore, when installing, the pedals are usually placed on a pedal frame assembly, and then the assembly is fixed to the car body by bolts and other connecting parts. In the prior art, holes are usually drilled directly on the pedal mounting assembly, and then matching holes are opened on the car body. During installation, the mounting holes are precisely aligned, and then fixed installation is achieved by inserting bolts in the holes.

[0003] Existing patent: CN202320269481.0 A new type of pedal unlocking device is arranged on a fixed plate on which the pedal is placed, and includes a base, a transmission device and a trigger device. The base is arranged on the fixed plate, and the transmission device is arranged on the base and is movably connected to the base. A bayonet is provided on the side of the transmission device close to the pedal, and the end of the transmission device provided with the bayonet can move closer to or away from the pedal. The trigger device is arranged on the base and is movably connected to the base. The trigger device contacts the transmission device. Triggering the trigger device can drive the end of the transmission device provided with the bayonet away from the pedal, thereby unlocking the pedal, and the trigger device and the transmission device can automatically reset to automatically lock the pedal.

[0004] However, no matter whether it is a fastening structure such as a bayonet or a bolt, the connection position is a hole opened on one side of the pedal assembly and corresponds to the screw hole of the mounting seat. Therefore, the connection length between the connecting piece and the pedal assembly is only determined by the thickness of the hole of the pedal assembly. The connecting side of the pedal assembly is mostly a thin plate structure. Therefore, due to the limitation of the hole depth, the connection length between the connecting piece and the pedal is relatively 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 additional fixation, which reduces the connection strength. Under the impact of multiple pedal uses, it is very easy to cause the screw sleeve to fall off. Summary of the invention

[0005] The object of the present invention is to provide a pedal mounting assembly fastening device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: The pedal mounting assembly fastening device comprises a mounting plate and a mounting seat, wherein the mounting plate is provided with a plurality of mounting hole assemblies distributed in a Z shape, and the mounting seat is provided with screw holes corresponding to the mounting hole assemblies one by one. A vertically extending extended slot is arranged on the inner side of the port of the screw hole, the mounting hole assembly includes a first stepped hole and a through hole, a plurality of groups of folding wing plates are arranged on the side wall of the mounting plate, the folding wing plates correspond to the mounting hole assemblies one by one, and the folding wing plates are folded and extended by 180 degrees, the first stepped hole is arranged on the mounting plate, one end of the through hole is connected to the first stepped hole, and the other end of the through hole passes through the folding wing plate, a locking screw sleeve is inserted in the first stepped hole, a screw tube extending along the through hole is arranged on the locking screw sleeve, and stepped columns and elliptical blocks are arranged at intervals on the outer wall of the middle section of the screw tube, the maximum outer diameter of the elliptical block is equal to the inner diameter of the through hole, and the folding wing plate is connected to the mounting plate. A gap is left between the mounting plates, and the interval between the step column and the elliptical block is opposite to the gap between the folding wing plate and the mounting plate, and a crossbeam frame is slidably inserted between a pair of symmetrically distributed folding wing plates, and plug plates slidably inserted in the gap between the folding wing plate and the mounting plate are provided at both ends of the crossbeam frame, and an opening slot that fits the outer wall of the screw tube is provided on the plug plate, and the plug plate is located between the step column and the elliptical block. A side plate frame located outside the folding wing plate is provided on the crossbeam frame, and a dislocation piece that cooperates with the extended long groove is provided on the side plate frame, a locking bolt is threadedly inserted in the screw tube, and the other end of the locking bolt is inserted in the screw hole, and a traction component for pulling the crossbeam frame is provided on the mounting plate.

[0007] Preferably, a controller is provided on an end surface of the mounting plate away from the folding wing plate, a pedal is provided at the lower end of the controller, and a connector for electrical connection is provided on the controller.

[0008] Preferably, the traction assembly includes a tensioning hole, a through hole, a tensioning bolt and an adjusting nut. A through hole is provided in the middle position of the crossbeam frame, and a tensioning hole overlapping with the through hole is provided on the mounting plate. The tensioning bolt is inserted into the tensioning hole and the through hole, and a nut at one end of the tensioning bolt is pressed onto an outer port of the through hole, and an adjusting nut is threadedly installed on the other end of the tensioning bolt, and the adjusting nut is pressed onto the side wall of the mounting plate, and the threaded rotation of the adjusting nut pulls the crossbeam frame closer to the side wall of the mounting plate.

[0009] Preferably, the locking screw sleeve is pressed on the step surface of the first step hole, a second step hole is provided in the locking screw sleeve, one end of the second step hole is connected to the screw tube, a step column is provided between the locking screw sleeve and the screw tube, the step column is located in the inner hole of the first step hole, and the outer diameter of the step column is larger than the inner diameter of the screw tube, and the end nut of the locking bolt is pressed on the step surface of the second step hole.

[0010] Preferably, the interval width between the stepped column and the elliptical block is greater than the thickness of the insert plate, a gear ring is provided on the outer wall of the stepped column on the side close to the elliptical block, the gear ring is composed of a plurality of groups of teeth distributed in a circular array, the end faces of the plurality of groups of teeth are rounded, an annular tooth groove cooperating with the teeth is provided on the outer wall of the insert plate on the side close to the stepped column, and the gear ring is pressed into the annular tooth groove by the traction of the traction assembly.

[0011] Preferably, the outer diameter of the elliptical block is larger than that of the screw tube, and the outer diameter of the screw tube is equal to the width of the open slot. The elliptical block is offset and pressed onto the plug plate by rotating the locking screw sleeve, and an opening penetrating the plug plate is provided at one end of the open slot.

[0012] Preferably, a plurality of groups of positioning holes distributed in a circular array are arranged on the stepped surface of the first stepped hole, and a positioning column which cooperates with the positioning hole is arranged on the locking screw sleeve, and the length of the positioning column is less than one third of the moving distance of the traction assembly traction beam frame toward the mounting plate.

[0013] Preferably, the dislocation part includes a convex tube and an extension plate, a stud is provided on the crossbeam frame, one end of the side plate frame is fixed by a mounting bolt inserted on the stud, and 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, and an extension plate is provided on the arc outer wall of the convex tube, the extension plate is inserted in the extension long groove, and the width of the extension long groove is greater than the thickness of the extension plate.

[0014] Preferably, the extension plate is arranged on the arc outer wall close to the outer end of the convex tube, and a gap groove adapted to the thickness between the extension slot and the outer wall of the mounting seat is arranged between the extension plate and the side plate frame.

[0015] Preferably, the folding wing plate is configured as an elastic plate, one end of the folding wing plate is fixed to the side wall of the mounting plate, the folding position between the folding wing plate and the mounting plate is connected by a three-quarter circular tube, and the end faces of the folding wing plate and the mounting plate are parallel to each other.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention increases the connection length between the locking bolt and the mounting plate and improves the fastening strength by arranging the cooperation of the folding wing plate and the plug-in screw sleeve. At the same time, the folding wing plate is elastically deformed by the traction of the traction assembly, and the purpose of fixing the circumferential angle and the longitudinal sliding position of the locking screw sleeve is achieved during the deformation, thereby improving the strength of the fastening connection and avoiding loosening of the connection position under impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the pedal installation assembly of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the rear three-dimensional structure of the present invention; Figure 4 It is a schematic diagram of a three-dimensional structure in which a crossbeam frame of the present invention is plugged and installed on a folded wing plate; Figure 5 It is a schematic diagram of the end section of the present invention; Figure 6 It is a schematic diagram of a three-dimensional structure in which the folding wing plate of the present invention is installed on a mounting plate; Figure 7 It is a schematic diagram of the three-dimensional structure of the locking screw sleeve installation of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the locking screw sleeve and the crossbeam frame installation of the present invention; Fig. 9 It is a schematic diagram of the forward three-dimensional structure of the crossbeam frame of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the rear side of the crossbeam frame of the present invention; Fig.11 It is a top view of the three-dimensional structure of the crossbeam frame of the present invention; Fig.12 The three-dimensional structure diagram of the locking screw sleeve of the present invention is shown in FIG. Fig.13 It is a rear view of the present invention; Fig.14 for Fig.13 Schematic diagram of the middle AA section; Fig.15 for Fig.14 A magnified view of the structure in the middle.

[0018] In the figure: 1. mounting plate; 2. folding wing plate; 3. controller; 4. pedal; 5. first stepped hole; 6. positioning hole; 7. tension hole; 8. through hole; 9. tension bolt; 10. adjusting nut; 11. locking screw 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. plug plate; 23. positioning column; 24. stepped column; 25. gear ring; 26. elliptical block; 27. screw tube; 28. annular tooth groove; 29. ​​clearance groove; 30. mounting seat; 31. screw hole; 32. extended long groove; 33. opening slot. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figures 1 to 15 , the present invention provides a technical solution: like Figures 1 to 4As shown, the pedal mounting assembly fastening device includes a mounting plate 1 and a mounting seat 30, the mounting plate 1 is provided with a plurality of groups of mounting hole assemblies distributed in a Z shape, the mounting seat 30 is provided with screw holes 31 corresponding to the mounting hole assemblies one by one, 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, and the controller 3 is provided with a connector 12 for electrical connection.

[0021] The controller 3 can be configured as a control device such as a brake or accelerator, and the mounting plate 1 can be fixed on the mounting seat 30 by configuring the mounting hole assembly to correspond to the screw hole 31 .

[0022] like Figure 6 As shown, a vertically extending elongated groove 32 is provided on the inner side of the port of the screw hole 31, the mounting hole assembly includes a first stepped hole 5 and a through hole 8, and 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 180 degrees.

[0023] The thickness of the mounting plate 1 is increased by providing the folding wing plate 2 , thereby increasing the length of the connection between the locking bolt 13 and the mounting plate 1 .

[0024] like Figure 5 , 7 As shown in 12, 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, and the other end of the through hole 8 passes through the folding wing plate 2, and a locking screw sleeve 11 is inserted in the first stepped hole 5, and a screw tube 27 extending along the through hole 8 is provided on the locking screw sleeve 11, and the outer wall of the middle section of the screw tube 27 is provided with stepped columns 24 and elliptical blocks 26 at intervals, and 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 folding wing plate 2 and the mounting plate 1, and the gap between the stepped column 24 and the elliptical block 26 is opposite to the gap between the folding wing plate 2 and the mounting plate 1.

[0025] By providing the stepped column 24 and the elliptical block 26 , a gap is formed in the middle section of the spiral tube 27 , which facilitates the insertion of the plug-in board 22 .

[0026] like Fig.10 , 11 As shown, a crossbeam frame 15 is slidably inserted between a pair of symmetrically distributed folding wing plates 2, and plug plates 22 are provided at both ends of the crossbeam frame 15 to be slidably inserted in the gap between the folding wing plates 2 and the mounting plate 1. The plug plates 22 are provided with open slots 33 that fit with the outer wall of the screw tube 27, and the plug plates 22 are located between the stepped columns 24 and the elliptical blocks 26.

[0027] The plug-in of the plug-in board 22 is realized by providing the open slot 33 , and the open slot 33 is further used to clamp the spaced outer wall of the middle section of the spiral tube 27 , thereby forming a vertical connection between the plug-in board 22 and the spiral tube 27 .

[0028] like Figures 8 to 11 As shown, the cross beam frame 15 is provided with a side plate frame 16 located on the outside of the folded wing plate 2, and the side plate frame 16 is provided with a dislocation piece that cooperates with the extended long slot 32, and the dislocation piece includes a convex tube 18 and an extension plate 19. The cross beam frame 15 is provided with a stud 21, and one end of the side plate frame 16 is fixed by a mounting bolt 17 inserted on the stud 21, and the other end of the side plate frame 16 is provided with a convex tube 18 that coincides with the through hole 8, and the inner diameter of the convex tube 18 is equal to the outer diameter of the screw tube 27, and an extension plate 19 is provided on the arc outer wall of the convex tube 18, and the extension plate 19 is inserted in the extended long slot 32, and the width of the extended long slot 32 is greater than the thickness of the extension plate 19, and the extension plate 19 is arranged on the arc outer wall near the outer end of the convex tube 18, and a gap groove 29 that adapts to the thickness between the extended long slot 32 and the outer wall of the mounting seat 30 is provided between the extension plate 19 and the side plate frame 16.

[0029] The side panel frame 16 is fixedly installed by the cooperation of the stud 21 and the mounting bolt 17, and the side panel frame 16 and the cross beam frame 15 are used to clamp the folding wing plate 2. The extension plate 19 is inserted into the extension slot 32 to form a vertical misalignment limit between the side panel frame 16 and the screw hole 31, thereby realizing lateral support. However, when the pedal 4 is under pressure or reset, the installation position of the mounting plate 1 is pressed down or impacted upward. The extension plate 19 is used to increase the pressure-bearing area to prevent the locking bolt 13 from loosening in the screw hole 31, thereby cushioning the impact of the pedal 4 when under pressure and reset.

[0030] like Figures 13 to 15 As shown, 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. A traction component of the tension beam frame 15 is provided on the mounting plate 1, and the traction component includes a tension hole 7, a through hole 20, a tension bolt 9 and an adjusting nut 10. A through hole 20 is provided in the middle position of the beam frame 15, and a tension hole 7 coincident with the through hole 20 is provided on the mounting plate 1. The tension bolt 9 is inserted in the tension hole 7 and the through hole 20, and the nut at one end of the tension bolt 9 is pressed on the outer port of the through hole 20. The other end of the tension bolt 9 is threadedly installed with an adjusting nut 10, and the adjusting nut 10 is pressed on the side wall of the mounting plate 1. The threaded rotation of the adjusting nut 10 pulls the beam frame 15 closer to the side wall of the mounting plate 1.

[0031] The crossbeam frame 15 is pulled by setting a traction component. During the adjustment process, the nut 10 is adjusted to rotate on the thread of the tension bolt 9, so that the crossbeam frame 15 is pulled to slide to the side of the mounting plate 1, so that the crossbeam frame 15 is tightly pressed on the step column 24. At the same time, due to the clamping effect on the folding wing plate 2, the folding wing plate 2 is synchronously driven to elastically deform and tilt to the side of the mounting plate 1, so that the folding wing plate 2, the mounting plate 1, the locking screw sleeve 11 and the crossbeam frame 15 are fitted and fixed to each other to avoid gaps that may cause subsequent loose connections.

[0032] Working principle: first, insert the locking screw sleeve 11 into the through hole 8, and then insert the crossbeam frame 15 along the gap between the folded wing plate 2 and the mounting plate 1, so that the opening slot 33 of the plug-in plate 22 is inserted between the stepped column 24 and the elliptical block 26, and then rotate the locking screw sleeve 11 so that the elliptical block 26 and the opening slot 33 are misaligned, thereby realizing the insertion limitation of the locking screw sleeve 11 and preventing the locking screw sleeve 11 from falling off.

[0033] Then, the side panel frame 16 is installed on the outer side of the crossbeam frame 15, and the cooperation of the tension bolts 9 and the adjusting nuts 10 is used to realize the limited installation of the crossbeam 15 on the mounting plate 1. The side panel frame 16 is tightly pressed on the outer wall of the folding wing plate 2 by rotating the mounting bolts 17 on the studs 21. The adjusting nuts 10 are used to pull the crossbeam frame 15 so that the crossbeam frame 15 slides toward the side of the mounting plate 1. Due to the cooperation of the plug plate 22 and the side panel frame 16, the folding wing plate 2 is clamped, and the folding wing plate 2 is synchronously driven to elastically deform and tilt to the side of the mounting plate 1, so that the folding wing plate 2, the mounting plate 1, the locking screw sleeve 11 and the crossbeam frame 15 are fitted and fixed to each other to avoid gaps that may cause subsequent loosening of the connection, thereby achieving the purpose of tightening the locking screw sleeve 11 and preventing it from falling off.

[0034] The extension plate 19 is inserted into the extension slot 32, and the mounting plate 1 is fixed to the screw hole 31 of the mounting seat 30 by the locking bolt 13. During the installation process, the folding wing plate 2 is used 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, thereby improving the fastening strength. At the same time, the folding wing plate is elastically deformed by the traction of the traction component, and the purpose of fixing the circumferential angle and longitudinal sliding position of the locking screw sleeve is achieved while deforming, thereby improving the strength of the fastening connection and avoiding loosening of the connection position under impact.

[0035] Example 2: Figure 2 , 6As shown, on the basis of Example 1, in order to further improve the axial rotation fixing strength of the locking screw sleeve 11, the locking screw sleeve 11 is pressed on the step surface of the first step hole 5, and a second step hole 14 is provided in the locking screw sleeve 11. One end of the second step hole 14 is connected to the screw tube 27, and a step column 24 is provided between the locking screw sleeve 11 and the screw tube 27. The step column 24 is located in the inner hole of the first step hole 5, and the outer diameter of the step column 24 is larger than the inner diameter of the screw tube 27. The end nut of the locking bolt 13 is pressed on the step surface of the second step hole 14.

[0036] By providing the structure of the stepped hole, the locking nut sleeve 11 and the locking bolt 13 can be installed in a limited position.

[0037] like Fig.10 , 12 The spacing width between the stepped 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 stepped 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 circular array, and 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 the side close to the stepped column 24. The gear ring 25 is pressed into the annular tooth groove 28 by the traction of the traction assembly.

[0038] By setting the matching of the ring gear 25 and the annular tooth groove 28, the friction force of axial rotation is increased. When the traction component drives the plug plate 22 to move toward the side of the step column 24, the ring gear 25 is stuck in the annular tooth groove 28 to form axial dislocation, thereby increasing friction and avoiding axial deflection. At the same time, the rounded corners are processed to ensure the stability of the matching and plug-in of the ring gear 25 and the annular tooth groove 28.

[0039] like Figure 6 , 7 As shown in 12, the outer diameter of the elliptical block 26 is larger 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. The elliptical block 26 is offset and pressed on the plug plate 22 by rotating the locking screw sleeve 11. One end of the open slot 33 is provided with an opening that passes through the plug plate 22. A plurality of groups of positioning holes 6 distributed in a circular array are provided on the stepped surface of the first stepped hole 5. A positioning column 23 that cooperates with the positioning hole 6 is provided on the locking screw sleeve 11. The length of the positioning column 23 is less than one-third of the moving distance of the traction assembly traction beam frame 15 to the mounting plate 1.

[0040] By setting the insertion of the positioning column 23 in the positioning hole 6, the axial position of the locking screw sleeve 11 is further fixed, and by limiting its length, it can realize the elastic deformation of the folding wing plate 2 under human traction, and then realize the insertion and installation of the positioning column 23 in the positioning hole 6, so that it can maintain independent relative movement with 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 column 23 can be disengaged from the positioning hole 6 by squeezing the folding wing plate 2 to deform slightly, thereby realizing the rotational misalignment. After the adjustment is completed, the folding wing plate 2 is automatically reset, and the positioning column 23 is reinserted into the positioning hole 6.

[0041] like Figure 6 , 7 As shown in , 8, 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 folding position between the foldable wing plate 2 and the mounting plate 1 is connected by 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.

[0042] By setting a three-quarter circular tube to connect the bending position between the folding wing plate 2 and the mounting plate 1, the amplitude of elastic deformation is increased, thereby avoiding the breakage of the connection position due to the elastic deformation caused by the traction component.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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).

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 1, characterized in that: The traction assembly comprises a tension hole (7), a through hole (20), a tension bolt (9) and an adjusting nut (10); a through hole (20) is provided at a middle position of the cross beam frame (15); a tension hole (7) overlapping with the through hole (20) is provided on the mounting plate (1); 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); an adjusting nut (10) is threadedly installed on the other end of the tension bolt (9); the adjusting nut (10) is pressed onto a side wall of the mounting plate (1); the thread of the adjusting nut (10) is rotated to pull the cross beam frame (15) closer to the side wall of the mounting plate (1).

4. The pedal mounting assembly fastening device according to claim 3, 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).

5. The pedal mounting assembly fastening device according to claim 4, 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.

6. The pedal mounting assembly fastening device according to claim 5, 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).

7. The pedal mounting assembly fastening device according to claim 4, characterized in that: A plurality of groups of positioning holes (6) distributed in a circumferential array are arranged on the stepped surface of the first stepped hole (5), and a positioning column (23) is arranged on the locking screw sleeve (11) to be plugged into and matched with the positioning holes (6), wherein the length of the positioning column (23) is less than one third of the distance that the traction beam frame (15) of the traction assembly moves toward the mounting plate (1).

8. 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).

9. The pedal mounting assembly fastening device according to claim 8, 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).

10. 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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