Auxiliary limiting tool for block valve of motor train unit

Abstract

The utility model discloses an auxiliary limiting tool for a block valve of a motor train unit, which belongs to the technical field of limiting tools and comprises a device body and a fixing column, the fixing column is fixedly mounted on one side of the device body, a supporting plate is fixedly mounted on the fixing column, a pipeline is arranged below the device body, and a valve is arranged above the pipeline. A connecting assembly used for being connected with a valve is arranged on one side of the device body, and a positioning assembly used for positioning the valve is arranged on the device body. According to the leg stretching device for training, rapid mounting and dismounting of a tool are achieved through cooperation of the springs and the tenons, when the leg stretching device needs to be mounted, the bolts are firstly unscrewed, the lifting handles are pulled, the lifting handles drive the drawing columns, the drawing columns drive the tenons to move and drive the springs at the same time, then the grooves are aligned with the valves, the lifting handles are loosened, and then the bolts are screwed off; at the moment, the spring drives the tenon to enter the hole, the bolt is screwed, and the bolt enters the threaded hole, so that quick mounting and dismounting can be achieved, the maintenance time is shortened, and the maintenance efficiency is improved.

Description

Technical Field

[0001] This utility model specifically relates to an auxiliary limiting fixture for a high-speed train shut-off valve, belonging to the field of limiting fixture technology. Background Technology

[0002] In the operation and maintenance of high-speed trains, the shut-off valve is an important component to ensure the normal operation of the train braking system. As a device used in conjunction with the shut-off valve, the efficiency and convenience of its installation and disassembly have a significant impact on the maintenance of high-speed trains.

[0003] Patent document CN116352634B discloses a limiting fixture for assembling a new energy vehicle frame. "This invention discloses a limiting fixture for assembling a new energy vehicle frame, relating to the field of automotive frame manufacturing technology. It includes a clamping mechanism, a positioning mechanism, and a support plate. The clamping mechanism includes a double-headed cylinder, which is fixedly connected to the center of the support plate on the ground. Both output ends of the double-headed cylinder are fixedly connected to mounting seats. This invention rotates a rotating disk, causing the rotating disk to drive the positive and negative threaded screws inside the positioning shell to rotate. The positive and negative threaded screws respectively drive two threaded seats to move towards each other, thereby causing the threaded seats to drive the two rotating rods above to clamp inward, thus lifting the limiting component upward, achieving the effect of lifting the crossbeam. Reverse rotation of the rotating disk causes the threaded seats to drive the two rotating rods above to open outward, achieving the effect of lowering the crossbeam. This achieves rapid adjustment of the height position of the welding crossbeam, improving the efficiency of welding positioning."

[0004] However, the aforementioned new energy vehicle frame assembly limiting fixture mainly considers the effect of lowering the crossbeam, thereby achieving rapid adjustment of the height position of the welding crossbeam and improving the efficiency of welding positioning. It does not take into account the problem of inconvenience when installing the fixture. Therefore, it is necessary to study an auxiliary limiting fixture for the EMU shut-off valve, which can be quickly installed and disassembled, reducing maintenance time and improving maintenance efficiency. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing an auxiliary limiting tool for the shut-off valve of a high-speed train, so as to achieve rapid installation and disassembly.

[0006] An auxiliary limiting fixture for a cut-off valve of a high-speed train includes a device body and a fixing column. The fixing column is fixedly installed on one side of the device body, and a support plate is fixedly installed on the fixing column and fixedly connected to the device body. A pipeline is provided below the device body, and a valve is provided above the pipeline. A switch is fixedly installed on one side of the valve. A connecting component for connecting the valve is provided on one side of the device body, and a positioning component for positioning the valve is provided on the device body.

[0007] Furthermore, the connecting assembly includes a pull-out column, a handle, a tenon, a fixing plate, a first spring, and a hole. A pull-out column is provided on one side of the device body, and a handle is fixedly installed at one end of the pull-out column. The pull-out column extends into the interior of the device body. A fixing plate is fixedly installed on the pull-out column and is located inside the device body. A first spring is arranged around the pull-out column, and one end of the first spring is fixedly connected to the fixing plate, while the other end is fixedly connected to the inner wall of the device body. A tenon is fixedly installed at one end of the fixing plate.

[0008] Furthermore, the positioning component includes a threaded hole and a bolt. The threaded hole is provided above the valve, and the bolt is provided above the device body, with the bolt threadedly connected to the threaded hole.

[0009] Furthermore, a second spring is fixedly connected to one end of the device body, and a damping plate is fixedly installed at the other end of the second spring, with one end of the device body passing through the damping plate.

[0010] Furthermore, a damping column is installed inside the damping plate, and one end of the damping column passes through the interior of the second spring and is fixedly connected to the device body.

[0011] Furthermore, a connecting column is provided on the pipeline, a support frame is fixedly connected to the connecting column, and a carriage panel is fixedly connected to one side of the support frame.

[0012] Furthermore, a groove is provided at the bottom of the device body, and the valve is located in the groove.

[0013] Beneficial effects:

[0014] 1. This utility model enables the rapid installation and disassembly of an auxiliary limiting fixture for a shut-off valve by using a No. 1 spring and a tenon. When installation is required, first loosen the bolts, then pull the handle. The handle drives the pull column, which in turn moves the fixing plate and the tenon, simultaneously causing the No. 1 spring to compress. Align the groove with the valve, and once the valve is inside the groove, release the handle. The No. 1 spring will then release, causing the tenon to enter the hole. Finally, tighten the bolts, which will enter the threaded hole, thus securing the valve. This not only allows for rapid installation and disassembly, reducing maintenance time, but also improves maintenance efficiency.

[0015] 2. This utility model reduces vibration by installing a second spring damping column. When vibration occurs, the high-frequency vibration will vibrate the damping plate. The combination of the second spring and the damping column absorbs the impact energy brought by the vibration, thereby effectively reducing vibration, preventing tooling from loosening or displacement, ensuring the stability of the limit function, reducing tooling wear, and improving safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 for Figure 1 Enlarged schematic diagram of structure A in the middle;

[0018] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the spring damping column structure of this utility model.

[0020] In the diagram: 1. Device body; 2. Support plate; 3. Fixing column; 4. Connecting column; 5. Pipeline; 6. Carriage body; 7. Damping column; 8. Support frame; 9. Valve; 10. Pull-out column; 11. Handle; 12. Bolt; 13. Tenon; 14. Threaded hole; 15. Switch; 16. Groove; 17. Fixing plate; 18. Hole; 19. Spring No. 1; 20. Damping plate; 21. Spring No. 2. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4As shown, an auxiliary limiting fixture for a high-speed train shut-off valve includes a device body 1 and a fixing column 3. The fixing column 3 is fixedly installed on one side of the device body 1, and a support plate 2 is fixedly installed on the fixing column 3 and fixedly connected to the device body 1. A pipe 5 is arranged below the device body 1, and a valve 9 is arranged above the pipe 5. A switch 15 is fixedly installed on one side of the valve 9. A connecting assembly for connecting the valve 9 is arranged on one side of the device body 1, and a positioning assembly for positioning the valve 9 is arranged on the device body 1. The connecting assembly includes a pull-out column 10, a handle 11, a tenon 13, and a fixing plate. 17. A first spring 19 and a hole 18 are provided. A pull-out column 10 is provided on one side of the device body 1. A handle 11 is fixedly installed at one end of the pull-out column 10. The pull-out column 10 extends into the interior of the device body 1. A fixing plate 17 is fixedly installed on the pull-out column 10 and is located inside the device body 1. A first spring 19 is arranged around the pull-out column 10. One end of the first spring 19 is fixedly connected to the fixing plate 17, and the other end is fixedly connected to the inner wall of the device body 1. A tenon 13 is fixedly installed at one end of the fixing plate 17. The positioning assembly includes a threaded hole 14 and a bolt 12. The valve 9 A threaded hole 14 is provided above the device body 1, and a bolt 12 is provided above the device body 1, with the bolt 12 threadedly connected to the threaded hole 14. In the operation and maintenance of high-speed trains, the shut-off valve is a crucial component ensuring the normal operation of the train's braking system. The efficiency and convenience of the installation and disassembly of the shut-off valve auxiliary limit fixture, as a device used in conjunction with the shut-off valve, significantly impacts the maintenance of high-speed trains. Traditional shut-off valve auxiliary limit fixtures require multiple steps of adjustment and fixing during installation, and complex connections need to be disassembled one by one during disassembly. Therefore, the auxiliary limit fixture for the shut-off valve is achieved by installing a No. 1 spring 19 and a tenon 13 in conjunction. The limit fixture can be quickly installed and disassembled. When installation is required, first loosen the bolt 12, then pull the handle 11. The handle 11 drives the pull column 10, which in turn moves the fixing plate 17 and the tenon 13, while simultaneously causing the first spring 19 to compress. Then, align the groove 16 with the valve 9. Once the valve 9 is inside the groove 16, release the handle 11. At this point, the first spring 19 springs open, causing the tenon 13 to enter the hole 18. Then, tighten the bolt 12, which will enter the threaded hole 14, thus fixing it in place. This not only allows for quick installation and disassembly, reducing maintenance time, but also improves maintenance efficiency.

[0023] Please see Figure 1 and Figure 4As shown, a second spring 21 is fixedly connected to one end of the device body 1, and a damping plate 20 is fixedly installed at the other end of the second spring 21. One end of the device body 1 passes through the damping plate 20, and a damping column 7 is installed inside the damping plate 20. One end of the damping column 7 passes through the interior of the second spring 21 and is fixedly connected to the device body 1. During the operation of the EMU, the valve 9 and the pipeline 5 will be subjected to high-frequency vibration, which will cause the auxiliary limit fixture of the shut-off valve to be unstable. Therefore, the vibration is reduced by installing the second spring 21 and the damping column 7. When vibration occurs, the high-frequency vibration will vibrate the damping plate 20. The combination of the second spring 21 and the damping column 7 will absorb the impact energy brought by the vibration, thereby effectively reducing the vibration, preventing the fixture from loosening or displacing, ensuring the stability of the limit function, reducing the wear of the fixture, and improving safety.

[0024] Please see Figures 1-3 As shown, a connecting column 4 is provided on the pipeline 5, and a support frame 8 is fixedly connected to the connecting column 4. The support frame 8 plays a supporting role. A carriage panel 6 is fixedly connected to one side of the support frame 8. A groove 16 is provided below the device body 1, and the valve 9 is located in the groove 16. The groove 16 is installed so that the valve 9 can be placed in the groove 16.

[0025] As a technical optimization of this utility model, when installation is required, first unscrew the bolt 12, then pull the handle 11. The handle 11 drives the pull column 10, which in turn moves the fixing plate 17 and the tenon 13, simultaneously causing the first spring 19 to compress. Then, align the groove 16 with the valve 9. When the valve 9 enters the groove 16, release the handle 11. At this time, the first spring 19 springs open, causing the tenon 13 to enter the hole 18. Then, tighten the bolt 12, which will enter the threaded hole 14, thus fixing it in place. This not only allows for quick installation and disassembly, reducing maintenance time, but also improves maintenance efficiency. When vibration occurs, the high-frequency vibration will vibrate the damping plate 20. The second spring 21 and the damping column 7 are combined to absorb the impact energy from the vibration, thereby effectively reducing vibration, preventing tooling from loosening or shifting, ensuring the stability of the limit function, reducing tooling wear, and improving safety.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An auxiliary limiting fixture for a cut-off valve of a high-speed train, comprising a device body (1) and a fixing column (3), characterized in that: A fixing column (3) is fixedly installed on one side of the device body (1), and a support plate (2) is fixedly installed on the fixing column (3). The support plate (2) is fixedly connected to the device body (1). A pipeline (5) is provided below the device body (1), and a valve (9) is provided above the pipeline (5). A switch (15) is fixedly installed on one side of the valve (9). A connecting component for connecting the valve (9) is provided on one side of the device body (1), and a positioning component for positioning the valve (9) is provided on the device body (1).

2. The auxiliary limiting fixture for a high-speed train shut-off valve as described in claim 1, characterized in that: The connecting assembly includes a pull-out column (10), a handle (11), a tenon (13), a fixing plate (17), a first spring (19), and a hole (18). A pull-out column (10) is provided on one side of the device body (1). A handle (11) is fixedly installed at one end of the pull-out column (10). The pull-out column (10) extends through the interior of the device body (1). A fixing plate (17) is fixedly installed on the pull-out column (10) and is located inside the device body (1). A first spring (19) is arranged around the pull-out column (10). One end of the first spring (19) is fixedly connected to the fixing plate (17), and the other end is fixedly connected to the inner wall of the device body (1). A tenon (13) is fixedly installed at one end of the fixing plate (17).

3. The auxiliary limiting fixture for a high-speed train shut-off valve as described in claim 1, characterized in that: The positioning component includes a threaded hole (14) and a bolt (12). The valve (9) is provided with a threaded hole (14) above it, and the device body (1) is provided with a bolt (12) above it. The bolt (12) is threadedly connected to the threaded hole (14).

4. The auxiliary limiting fixture for a high-speed train shut-off valve as described in claim 1, characterized in that: One end of the device body (1) is fixedly connected to a second spring (21), and the other end of the second spring (21) is fixedly installed with a damping plate (20), and one end of the device body (1) passes through the damping plate (20).

5. The auxiliary limiting fixture for a high-speed train shut-off valve as described in claim 4, characterized in that: The damping plate (20) is equipped with a damping column (7), and one end of the damping column (7) passes through the interior of the second spring (21) and is fixedly connected to the device body (1).

6. The auxiliary limiting fixture for a high-speed train shut-off valve as described in claim 1, characterized in that: A connecting column (4) is provided on the pipeline (5), and a support frame (8) is fixedly connected to the connecting column (4). A carriage panel (6) is fixedly connected to one side of the support frame (8).

7. The auxiliary limiting fixture for a high-speed train shut-off valve as described in claim 1, characterized in that: A groove (16) is provided below the device body (1), and the valve (9) is located in the groove (16).

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