Adjusting plate and self-tightening regulating device using adjusting plate

Abstract

The application relates to the field of locking members, in particular to an adjusting sheet and a self-tightening adjusting device applying the adjusting sheet, which comprises a sheet body, one side of the sheet body is connected with an embedded block, the other side of the sheet body is provided with a limiting groove for embedding the embedded block, and the sheet body can fill the gap between a brake rail and a brake unit. In the application, the embedded block and the limiting groove are arranged, the volume of the thinned brake rail is filled, the stability of the interval between the brake rail and the brake unit is guaranteed, the contact position of the train wheel rim and the brake rail is constant, the lateral force change is avoided, the train braking distance is constant, and thus the safety of train driving is improved.

Description

Technical Field

[0001] This application relates to the field of locking components, and more particularly to an adjusting plate and a self-tightening adjusting device using the adjusting plate. Background Technology

[0002] Reference Figure 1 Braking rail 7 is a braking mechanism installed on both sides of the rail. Braking rail 7 is fixed to the ground by braking unit 8.

[0003] When in use, the brake rail 7 rolls in contact with the train wheel hub. The brake rail 7 will wear down due to the friction between it and the train wheel hub. When the surface of the rail is worn thin, the gap between the surface of the brake rail 7 and the brake unit 8 becomes larger. Usually, multiple iron plates are set to fill the gap between the brake rail 7 and the brake unit 8. However, adjacent iron plates may separate due to the vibration generated when the train passes by. The contact position between the train wheel flange and the brake rail 7 changes, causing changes in lateral force, which leads to an increase in the actual braking distance of the train, thereby increasing the risk of train operation. Utility Model Content

[0004] To address the problem of adjacent iron plates separating due to vibrations generated when a train passes by, this application provides an adjusting plate and a self-tightening adjusting device using the adjusting plate.

[0005] This application provides an adjustment plate and a self-tightening adjustment device using the adjustment plate, which adopts the following technical solution: An adjustment plate includes a plate body, with an insert connected to one side of the plate body and a limiting groove for the insert to be inserted on the other side of the plate body. The plate body is capable of filling the gap between the brake rail and the brake unit.

[0006] By adopting the above technical solution, when the surface of the brake rail is worn thin due to friction with the train wheel hub, the distance between the brake rail and the brake unit increases, causing the plate to embed between the brake rail and the brake unit. The insert on the plate is embedded in the limiting groove on the adjacent plate, and the outer peripheral surface of the insert abuts against the inner wall of the limiting groove to form a positioning. The brake unit and the brake rail clamp the two sides of the plate to form a fixation, filling the volume of the brake rail that has been worn thin. This makes it less likely for adjacent iron plates to detach due to vibrations generated when the train passes, ensuring the stability of the distance between the brake rail and the brake unit, keeping the contact position between the train wheel flange and the brake rail constant, avoiding changes in lateral force, ensuring a constant train braking distance, and thus improving the safety of train operation.

[0007] Optionally, the limiting groove extends through both sides of the sheet body in the thickness direction, one end of the insert is connected to the inner wall of the limiting groove, and the other end of the insert protrudes from the surface of the sheet body.

[0008] By adopting the above technical solution, the thickness of the pad is selected according to the distance between the brake rail and the brake unit, so that the thickness of multiple pads is adapted to the distance between the brake rail and the brake unit. Multiple pads are stacked in sequence, and the inserts on the pads are embedded in the limiting grooves on the adjacent pads. The outer peripheral surface of the inserts abuts against the inner wall of the limiting groove to form a limit, thereby realizing the synchronous limiting of multiple pads. This allows the pads to adapt to different distances between the brake rail and the brake unit, thereby improving the versatility of the adjustment pads.

[0009] Optionally, two inserts are provided, with one end of each insert connected to the inner wall of both sides of the limiting groove along its length, and the other ends of the two inserts facing each other and protruding from the end face of the plate.

[0010] By adopting the above technical solution, one end of each of the two inserts is connected to the inner wall of both sides of the limiting groove along its length. The other ends of the two inserts face each other and protrude from the end face of the piece. The protruding ends of the inserts are embedded in the limiting groove, and the surface of the inserts abuts against the inner wall of the limiting groove to form a limit, thereby increasing the contact area between the inserts and the inner wall of the limiting groove and thus improving the limiting stability between adjacent pieces.

[0011] Optionally, two inserts are provided, with one end of each insert connected to the inner wall of both sides of the limiting groove in the width direction, and the other ends of the two inserts facing each other and protruding from the end face of the plate.

[0012] By adopting the above technical solution, the ends of the two inserts are connected one-to-one to the inner walls on both sides of the limiting groove in the width direction. When multiple pieces are stacked, the surface of the insert protruding from the piece guides the end of the insert to be embedded in the limiting groove, and a deformation gap is left between the two inserts, so that the workers can use a hammer to knock the piece into the groove, thereby further improving the installation efficiency of the adjustment piece.

[0013] Secondly, this application provides a self-tightening adjustment device using an adjustment plate, which adopts the following technical solution: A self-tightening adjustment device using an adjustment plate includes a clamping plate and an adjustment plate. The clamping plate has a groove on its surface for inserting a block. The surface of the block abuts against the inner wall of the groove and confines the plate to the clamping plate. When the clamping plate and the plate are inserted between the brake rail and the brake unit, the surfaces of the brake unit and the brake rail correspond one-to-one to clamp the plate surface and the clamping plate surface to form a fixed structure.

[0014] By adopting the above technical solution, when the distance between the brake rail and the brake unit increases, the surface of the brake pad is driven to fit against the surface of the clamping plate, the insert is embedded in the groove, the surface of the insert abuts against the inner wall of the groove and confines the brake pad on the clamping plate, the clamping plate and the brake pad are driven to embed between the brake rail and the brake unit, the surface of the brake unit and the surface of the brake rail correspond one-to-one to clamp the surface of the brake pad and the surface of the clamping plate to form a fixed structure, fill the volume of the brake rail that has been worn thin, ensure the stability of the distance between the brake rail and the brake unit, keep the contact position between the train wheel flange and the brake rail constant, avoid changes in lateral force, ensure a constant train braking distance, and thus improve the safety of train operation.

[0015] Optionally, one end of the card plate is connected to a limiting strip, the surface of which can abut against the bottom of the brake rail to form a limit; the surface of the limiting strip facing the bottom of the brake rail is provided with a guide surface, the guide surface is arc-shaped, and the guide surface guides the surface of the limiting strip to abut against the bottom of the brake rail.

[0016] By adopting the above technical solution, when the clamping plate is embedded between the brake rail and the brake unit, the surface of the limiting strip abuts against the bottom of the brake rail to form a limit, eliminating the need for tightening with bolts, further improving the maintenance efficiency of the brake rail and shortening the maintenance cycle of the brake rail; at the same time, when the clamping plate is embedded between the brake rail and the brake unit, the guide surface guides the surface of the limiting strip to abut against the bottom of the brake rail, reducing wear between the limiting strip and the brake rail, thereby ensuring the clamping force between the surface of the limiting strip and the surface of the brake rail.

[0017] Optionally, each end of the card plate is connected to a positioning plate, and the surfaces of the two positioning plates facing each other can abut against the two ends of the piece to form a positioning.

[0018] By adopting the above technical solution, when multiple sheets are stacked sequentially on the card plate, the surfaces of the two positioning plates that face each other correspond to the two ends of the sheets to form a positioning, making it less likely for the sheets to shift when stacked, thereby improving the stability of stacking multiple sheets.

[0019] Optionally, each end face of the sheet facing the positioning plate is connected to an abutment block. When the sheet surface is in contact with the card plate surface and the bottom surface of the abutment block abuts the top surface of the positioning plate, the insert is embedded in the groove to form a limit.

[0020] By adopting the above technical solution, the operator drives the piece to be embedded in the gap between the two positioning plates. When the surface of the piece is in contact with the surface of the card plate and the bottom surface of the abutting block is in contact with the top surface of the positioning plate, the insert is embedded in the groove. The surface of the insert abuts against the inner wall of the groove to form a limit, and the top surface of the positioning plate abuts against the bottom surface of the abutting block to form a support, making it difficult for the piece to shift, thereby further improving the limiting stability between the piece and the positioning plate.

[0021] Optionally, the card plate has an induction cavity on its top surface and the sheet has an adjustment cavity on its top surface. When the insert is embedded in the slot, the induction cavity and the adjustment cavity are connected, and the bottom wall of the induction cavity is flush with the bottom wall of the adjustment cavity.

[0022] By adopting the above technical solution, when the plate surface is attached to the card plate surface and the slot is embedded in the slot, the initiation cavity and the adjustment cavity are connected, and the bottom wall of the initiation cavity is flush with the bottom wall of the adjustment cavity. This allows the operator to directly judge the embedding status of the insert in the slot based on the flushness of the bottom wall of the initiation cavity and the bottom wall of the adjustment cavity, thereby further improving the assembly efficiency of the self-tightening adjustment device.

[0023] Optionally, the end of the limiting strip away from the card plate is connected to a retaining plate, and the surface of the retaining plate can press against the surface of the brake rail to form a limit.

[0024] By adopting the above technical solution, when the surface of the limiting strip abuts against the bottom of the brake rail to form a limiting position, and the surface of the clamping plate abuts against the surface of the brake rail to form a limiting position, the contact area between the clamping plate and the brake rail is increased, thereby improving the clamping force between the clamping plate and the brake rail.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The setting of the insert and limiting groove fills the volume of the brake rail that has been worn thin, ensures the stability of the distance between the brake rail and the brake unit, keeps the contact position between the train wheel flange and the brake rail constant, avoids changes in lateral force, ensures a constant train braking distance, and thus improves the safety of train operation. 2. The setting of the limit strip: the surface of the limit strip abuts against the bottom of the brake rail to form a limit, eliminating the need for tightening with bolts, further improving the maintenance efficiency of the brake rail and shortening the maintenance cycle of the brake rail; 3. The guide surface is designed so that the surface of the guide limit strip is pressed against the bottom of the brake rail, reducing wear between the limit strip and the brake rail, thereby ensuring the clamping force between the surface of the limit strip and the surface of the brake rail. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the brake rail and brake unit in the existing technology.

[0027] Figure 2 This is a schematic diagram of the overall structure of the adjustment piece in Embodiment 1 of this application.

[0028] Figure 3 This is a schematic diagram of the overall structure of the adjustment piece in Embodiment 2 of this application.

[0029] Figure 4 This is a schematic diagram of the overall structure of the adjustment piece in Embodiment 3 of this application.

[0030] Figure 5This is a schematic diagram of the overall structure of the self-tightening adjustment device using the adjustment plate in Embodiment 1 of this application.

[0031] Figure 6 This is an exploded view of the self-tightening adjustment device using the adjustment plate in Embodiment 1 of this application.

[0032] Figure 7 This is a schematic diagram of the overall structure of the clamping plate in the self-tightening adjustment device using the adjustment plate in Embodiment 2 of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Clamping plate; 11. Slot; 12. Revelation cavity; 2. Plate; 21. Limiting slot; 22. Adjustment cavity; 3. Limiting strip; 31. Guide surface; 4. Insert; 5. Positioning plate; 6. Abutting block; 7. Braking rail; 8. Braking unit; 9. Pressing plate; 91. Buffer surface. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 2-7 This application will be described in further detail.

[0035] This application discloses an adjustment piece.

[0036] Example 1 Reference Figure 2 The adjustment piece includes a piece body 2. The number of pieces body 2 can be one, two or more. In this embodiment, the number of pieces body 2 is multiple. A limiting groove 21 is formed on the surface of the piece body 2. The limiting groove 21 extends through both sides of the piece body 2 along the thickness direction. An insert 4 is integrally formed and fixed on the inner wall of the limiting groove 21. The end of the insert 4 protruding from the surface of the piece body 2 can be embedded into the limiting groove 21 of the adjacent piece body 2 to achieve the initial positioning between the adjacent pieces body 2.

[0037] The implementation principle of the self-tightening adjustment device in Embodiment 1 of this application is as follows: During installation, the number of plates is selected according to the distance between the brake rail 7 and the brake unit 8, so that the thickness of multiple plates 2 is adapted to the distance between the brake rail 7 and the brake unit 8. Multiple plates 2 are stacked in sequence, and the inserts 4 on the plates 2 are embedded in the limiting grooves 21 on the adjacent plates 2. The outer peripheral surface of the inserts 4 abuts against the inner wall of the limiting grooves 21 to form a limit, thereby realizing the synchronous limiting of multiple plates 2. The plates 2 are driven to be embedded between the brake rail 7 and the brake unit 8. The brake unit 8 and the brake rail 7 clamp the two sides of the plates 2 to form a fixed position, fill the volume of the brake rail 7 that has been worn thin, ensure the stability of the distance between the brake rail 7 and the brake unit 8, keep the contact position between the train wheel flange and the brake rail 7 constant, avoid changes in lateral force, ensure a constant train braking distance, and thus improve the safety of train operation.

[0038] Example 2 Reference Figure 3The difference between Embodiment 2 and Embodiment 1 is that there are two inserts 4. One end of each insert 4 is fixed to the inner wall of the two sides of the limiting groove 21 along the length direction. The other ends of the two inserts 4 face each other and protrude from the end face of the sheet 2. When multiple sheets 2 are stacked in sequence, the inserts 4 are embedded in the limiting groove 21 on the adjacent sheets 2, and the end faces of the two adjacent inserts 4 abut against each other, increasing the contact area between the two adjacent sheets 2, thereby further improving the limiting stability between the adjacent sheets 2.

[0039] The implementation principle of the self-tightening adjustment device in Embodiment 2 of this application is as follows: when multiple pieces 2 are stacked in sequence, the insert 4 is embedded in the limiting groove 21 on the adjacent pieces 2, and the end faces between two adjacent inserts 4 abut against each other, increasing the contact area between two adjacent pieces 2, thereby further improving the limiting stability between adjacent pieces 2.

[0040] Example 3 Reference Figure 4 The difference between Embodiment 3 and Embodiment 1 is that there are two inserts 4. One end of each insert 4 is integrally formed and fixed on the inner walls of both sides of the limiting groove 21 in the width direction. The other ends of the two inserts 4 face each other and protrude from the end face of the sheet 2.

[0041] The implementation principle of the self-tightening adjustment device in Embodiment 3 of this application is as follows: when the surface of the plate 2 is attached to the plate 1, the insert 4 protrudes from the surface of the plate 2 and the end of the guide insert 4 is embedded in the groove 11, and a deformation gap is left between the two inserts 4, so that the workers can use a hammer to knock the plate 2 into place, thereby further improving the installation efficiency of the self-tightening adjustment device.

[0042] This application also discloses a self-tightening adjustment device using an adjustment plate.

[0043] Example 1 Reference Figure 5 and Figure 6 The self-tightening adjustment device using the adjustment plate includes a clamping plate 1 and an adjustment plate. One end of the clamping plate 1 along its length is integrally formed and fixed with a limiting strip 3. The end face of the limiting strip 3 facing the clamping plate 1 is provided with a guide surface 31. The guide surface 31 is arc-shaped and can guide the limiting strip 3 to engage with the bottom of the brake rail 7. The surface of the limiting strip 3 with the guide surface 31 can press against the bottom of the brake rail 7 to form a limit.

[0044] Reference Figure 5 and Figure 6The card plate 1 has a groove 11 for inserting the insert 4. The groove 11 extends through both sides of the card plate 1 along the depth direction. When the surface of the piece 2 is attached to the surface of the card plate 1, the groove 11 connects to the limiting groove 21, and the end of the insert 4 is inserted into the groove 11. The surface of the insert 4 abuts against the inner wall of the groove 11 to form a limiting, thereby achieving the initial limiting of the piece 2 on the surface of the card plate 1.

[0045] Reference Figure 5 and Figure 6 Positioning plates 5 are integrally formed and fixed at both ends of the width direction of the card plate 1. The surfaces of the two positioning plates 5 facing each other can abut against the two ends of the sheet body 2 to form a positioning, so that multiple sheets 2 are not easily offset when stacked on the surface of the card plate 1, thereby improving the positioning stability of the sheet body 2 on the surface of the card plate 1.

[0046] Reference Figure 5 and Figure 6 During installation of the self-tightening adjustment device, the number of plates is selected according to the distance between the brake rail 7 and the brake unit 8, so that the thickness of the clamping plate 1 and the multiple plates 2 are matched with the distance between the brake rail 7 and the brake unit 8. The multiple plates 2 are stacked in sequence, and the inserts 4 on the plates 2 are embedded into the limiting grooves 21 on the adjacent plates 2. The outer peripheral surface of the insert 4 abuts against the inner wall of the limiting groove 21 to form a limit, thereby achieving synchronous limiting of the multiple plates 2. At the same time, the multiple plates 2 are placed on the plate surface of the clamping plate 1, and the inserts 4 on the plates 2 that abut against the plate surface of the clamping plate 1 are embedded into the grooves 11. The surface of the insert 4 abuts against the inner wall of the groove 11 to form a limit, thereby achieving the initial positioning between the clamping plate 1 and the multiple plates 2, driving the clamping plate 1 and the plates 2 to be embedded between the brake rail 7 and the brake unit 8. The guide surface 31 guides the limiting strip 3 to be embedded into the bottom of the brake rail 7, limiting... The surface of the limiting strip 3 abuts against the bottom of the brake rail 7 to form a limiting position, achieving initial limiting of the clamping plate 1 and the brake rail 7. Furthermore, the surfaces of the brake unit 8 and the brake rail 7 correspond one-to-one, clamping the surfaces of the plate 2 and the clamping plate 1 to form a fixed position, filling the volume of the brake rail 7 that has been worn thin, ensuring the stability of the distance between the brake rail 7 and the brake unit 8, keeping the contact position between the train wheel flange and the brake rail 7 constant, avoiding changes in lateral force, ensuring a constant train braking distance, and thus improving driving safety. Simultaneously, the surface of the limiting strip 3 abuts against the bottom of the brake rail 7 to form a limiting position, eliminating the need for bolt tightening, further improving the maintenance efficiency of the brake rail 7, shortening the maintenance cycle of the brake rail 7, and enabling the clamping plate 1 and the plate 2 to adapt to different distances between the brake rail 7 and the brake unit 8, thereby improving the versatility of the self-tightening adjustment device.

[0047] Reference Figure 5 and Figure 6The surface of the sheet 2 facing the top surface of the positioning plate 5 is integrally formed and fixed with an abutment block 6. When the surface of the sheet 2 is in contact with the surface of the card plate 1 and the bottom surface of the abutment block 6 abuts the top surface of the positioning plate 5, the guide block 4 is embedded in the groove 11. The surface of the block 4 abuts the inner wall of the groove 11 to form a limit, which further improves the installation efficiency between the sheet 2 and the card plate 1.

[0048] Reference Figure 5 and Figure 6 The top surface of the card plate 1 has an induction cavity 12, which extends through both sides of the card plate 1 along the thickness direction. The top surface of the plate body 2 has an adjustment cavity 22, which extends through both sides of the plate body 2 along the thickness direction. When the insert 4 is embedded in the groove 11, the induction cavity 12 connects to the adjustment cavity 22, and the bottom wall of the induction cavity 12 is flush with the bottom wall of the adjustment cavity 22. This allows the operator to directly judge the embedding status of the insert 4 in the groove 11 based on the flushness between the bottom wall of the induction cavity 12 and the bottom wall of the adjustment cavity 22, thereby further improving the installation efficiency of the self-tightening adjustment device.

[0049] The implementation principle of a self-tightening adjustment device using adjustment plates in Embodiment 1 of this application is as follows: During installation, the number of plates 2 is selected according to the distance between the brake rail 7 and the brake unit 8, so that the thickness of the clamping plate 1 and the multiple plates 2 are matched with the distance between the brake rail 7 and the brake unit 8. The multiple plates 2 are stacked sequentially, and the inserts 4 on the plates 2 are embedded into the limiting grooves 21 on the adjacent plates 2. The outer peripheral surface of the insert 4 abuts against the inner wall of the limiting groove 21 to form a limit, thereby achieving synchronous limiting of the multiple plates 2. At the same time, the multiple plates 2 are placed on the plate surface of the clamping plate 1, and the inserts 4 on the plates 2 that abut against the plate surface of the clamping plate 1 are embedded into the grooves 11. The surface of the insert 4 abuts against the inner wall of the groove 11 to form a limit, thereby achieving the initial positioning between the clamping plate 1 and the multiple plates 2, driving the clamping plate 1 and the plates 2 to be embedded between the brake rail 7 and the brake unit 8. The guide surface 31 The guide limiting strip 3 is embedded in the bottom of the brake rail, and the surface of the limiting strip 3 abuts against the bottom of the brake rail 7 to form a limit, realizing the initial limit between the clamping plate 1 and the brake rail 7. The surfaces of the brake unit 8 and the brake rail 7 correspond one-to-one to clamp the surfaces of the plate body 2 and the clamping plate 1 to form a fixed structure, filling the volume of the brake rail 7 that has been worn thin, ensuring the stability of the distance between the brake rail 7 and the brake unit 8, keeping the contact position between the train wheel flange and the brake rail 7 constant, avoiding changes in lateral force, ensuring a constant train braking distance, and thus improving the safety of train operation. At the same time, the surface of the limiting strip 3 abuts against the bottom of the brake rail 7 to form a limit, eliminating the need for bolt tightening, further improving the maintenance efficiency of the brake rail 7, shortening the maintenance cycle of the brake rail 7, and enabling the clamping plate 1 and the plate body 2 to adapt to different distances between the brake rail 7 and the brake unit 8, thereby improving the versatility of the self-tightening adjustment device.

[0050] Example 2 The difference between Example 2 and Example 1 is that, referring to Figure 7 The end of the limiting strip 3 away from the clamping plate 1 is integrally formed and fixed with a clamping plate 9. The surface of the clamping plate 9 can press against the surface of the brake rail 7 to form a limit. The end of the clamping plate 9 near the limiting strip 3 is provided with a buffer surface 91. The buffer surface 91 is arc-shaped. When the surface of the limiting strip 3 presses against the bottom of the brake rail 7 to form a limit, and the surface of the clamping plate 9 presses against the surface of the brake rail 7 to form a limit, the contact area between the clamping plate 1 and the brake rail 7 is increased, thereby improving the clamping force between the clamping plate 1 and the brake rail 7.

[0051] The implementation principle of a self-tightening adjustment device using an adjustment plate in Embodiment 2 of this application is as follows: when the surface of the limiting strip 3 abuts against the bottom of the brake rail 7 to form a limit, and the surface of the clamping plate 9 abuts against the surface of the brake rail 7 to form a limit, the contact area between the clamping plate 1 and the brake rail 7 is increased, thereby increasing the clamping force between the clamping plate 1 and the brake rail 7.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustment piece, characterized in that: Includes a plate (2), one side of which is connected to an insert (4), and the other side of which is provided with a limiting groove (21) for the insert (4) to be inserted. The plate (2) can fill the gap between the brake rail (7) and the brake unit (8).

2. The adjustment piece according to claim 1, characterized in that: The limiting groove (21) penetrates both sides of the sheet body (2) in the thickness direction. One end of the insert (4) is connected to the inner wall of the limiting groove (21), and the other end of the insert (4) protrudes from the surface of the sheet body (2).

3. The adjustment piece according to claim 2, characterized in that: Two inserts (4) are provided. One end of each insert (4) is connected to the inner wall of both sides of the limiting groove (21) along the length direction. The other ends of the two inserts (4) face each other and protrude from the end face of the plate (2).

4. The adjustment piece according to claim 2, characterized in that: Two inserts (4) are provided. One end of each insert (4) is connected to the inner wall of the two sides of the limiting groove (21) in the width direction. The other ends of the two inserts (4) face each other and protrude from the end face of the plate (2).

5. A self-tightening adjustment device using adjusting plates, characterized in that: The device includes a clamping plate (1) and an adjustment piece as described in any one of claims 1-4. The clamping plate (1) has a groove (11) on its surface for inserting a block (4). The surface of the block (4) abuts against the inner wall of the groove (11) and limits the piece (2) to the clamping plate (1). When the clamping plate (1) and the piece (2) are inserted between the brake rail (7) and the brake unit (8), the surface of the brake unit (8) and the surface of the brake rail (7) clamp the surface of the piece (2) and the surface of the clamping plate (1) in a one-to-one correspondence to form a fixed structure.

6. The self-tightening adjustment device using an adjustment plate according to claim 5, characterized in that: One end of the card plate (1) is connected to a limiting strip (3), and the surface of the limiting strip (3) can abut against the bottom of the brake rail (7) to form a limit; the surface of the limiting strip (3) facing the bottom of the brake rail (7) is provided with a guide surface (31), the guide surface (31) is arc-shaped, and the guide surface (31) guides the surface of the limiting strip (3) to abut against the bottom of the brake rail (7).

7. The self-tightening adjustment device using an adjustment plate according to claim 5, characterized in that: The card plate (1) is connected to positioning plates (5) at both ends, and the surfaces of the two positioning plates (5) facing each other can abut against the two ends of the sheet body (2) to form a positioning.

8. The self-tightening adjustment device using an adjustment plate according to claim 7, characterized in that: Each end face of the sheet (2) facing the positioning plate (5) is connected to an abutment block (6). When the sheet (2) is attached to the plate (1) and the bottom surface of the abutment block (6) is attached to the top surface of the positioning plate (5), the insert (4) is embedded in the groove (11) to form a limit.

9. The self-tightening adjustment device using an adjustment plate according to claim 8, characterized in that: The card plate (1) has an opening cavity (12) on its top surface and an adjustment cavity (22) on its top surface. When the insert (4) is embedded in the slot (11), the opening cavity (12) and the adjustment cavity (22) are connected, and the bottom wall of the opening cavity (12) is flush with the bottom wall of the adjustment cavity (22).

10. The self-tightening adjustment device using an adjustment plate according to claim 6, characterized in that: The end of the limiting strip (3) away from the card plate (1) is connected to a pressing plate (9), and the surface of the pressing plate (9) can press against the surface of the brake rail (7) to form a limit.

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