Check valve function detection mechanism used in train

Abstract

The utility model relates to a function detection mechanism for a check valve used in a train, and belongs to the technical field of rail transit. According to the technical scheme, a gas path sealing mounting plate (1) is provided with vent holes matched with a gas nozzle (3), a gas pipe I (4) and a gas pipe II (5), and the gas nozzle (3), the gas pipe I (4) and the gas pipe II (5) are matched with a check valve (11); a cylinder barrel of the air cylinder (7) is fixed to the air cylinder support (6), the air cylinder support (6) is fixed to the air path sealing installation plate (1), a cylinder rod of the air cylinder (7) is in driving connection with the first pressing plate (9), the two ends of the first pressing plate (9) are connected with the pull rods (8) respectively, the two pull rods (8) penetrate through the air path sealing installation plate (1) and then are connected with the second pressing plate (10), and the second pressing plate (10) is matched with the check valve (11). Functional verification can be provided for the overhauled check valve, normal functions of the check valve are guaranteed, and normal operation of a train loaded with the check valve is guaranteed.

Description

Technical Field

[0001] This utility model relates to a function testing mechanism for a check valve used inside a train, belonging to the field of rail transit technology. Background Technology

[0002] With the continuous development of my country's railways, railways have become a popular and important means of transportation. In the current train air circuit, the air circuit control box is a key component, mainly used in the passenger car air brake system. It contains ball valves, check valves, pipelines, and other parts. Among them, the functional testing of the check valve is particularly important, as improper maintenance can affect the safety of train operation. Utility Model Content

[0003] The purpose of this invention is to provide a function testing mechanism for check valves used inside trains. This mechanism can verify the function of check valves after maintenance, ensure that the check valves function normally, and ensure that the train runs normally after installation.

[0004] The technical solution of this utility model is:

[0005] A check valve function testing mechanism for train interiors includes an air circuit sealing mounting plate, a clamping mechanism, an air nozzle, an air pipe one, and an air pipe two. The air circuit sealing mounting plate has vent holes that mate with the air nozzle, air pipe one, and air pipe two. The air nozzle, air pipe one, and air pipe two mate with the check valve. The clamping mechanism includes a cylinder bracket, a cylinder, a pull rod, a pressure plate one, and a pressure plate two. The cylinder barrel is fixed on the cylinder bracket, which is fixed on the air circuit sealing mounting plate. The cylinder rod is driven to the pressure plate one. Both ends of the pressure plate one are connected to a pull rod, and the two pull rods pass through the air circuit sealing mounting plate and are connected to the pressure plate two. The pressure plate two mates with the check valve.

[0006] Furthermore, the cylinder bracket is fixed on one side of the air circuit sealing mounting plate, and the check valve is fixed on the other side of the air circuit sealing mounting plate.

[0007] Furthermore, the check valve is fixed to the other side of the gas circuit sealing mounting plate by a check valve positioning seat.

[0008] Furthermore, the cylinder bracket has a U-shaped structure.

[0009] Furthermore, the first pressure plate and the second pressure plate are arranged in parallel on both sides of the gas passage sealing mounting plate.

[0010] The beneficial effects of this utility model are: safe and reliable structure, low cost, solving the problem of verifying the function of the check valve in the air circuit control box, ensuring the normal function of the air circuit control box, and enabling the safe operation of the train. Attached Figure Description

[0011] Figure 1This is the front view of the present utility model;

[0012] Figure 2 This is the left view of the present invention;

[0013] Figure 3 This is a top view of the present invention;

[0014] In the diagram: 1. Gas circuit sealing mounting plate; 2. Pressure clamping mechanism; 3. Air nozzle; 4. Air pipe one; 5. Air pipe two; 6. Cylinder bracket; 7. Cylinder; 8. Tie rod; 9. Pressure plate one; 10. Pressure plate two; 11. Check valve; 12. Check valve positioning seat. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] See attached document Figure 1 , 2 3. A function testing mechanism for a check valve used inside a train, comprising an air circuit sealing mounting plate 1, a clamping mechanism 2, an air nozzle 3, an air pipe 4, and an air pipe 5. The air circuit sealing mounting plate 1 has vent holes that cooperate with the air nozzle 3, the air pipe 4, and the air pipe 5. The air nozzle 3, the air pipe 4, and the air pipe 5 cooperate with the check valve 11. The clamping mechanism 2 comprises a cylinder bracket 6, a cylinder 7, a pull rod 8, a pressure plate 9, and a pressure plate 10. The cylinder barrel of the cylinder 7 is fixed on the cylinder bracket 6, and the cylinder bracket 6 is fixed on the air circuit sealing mounting plate 1. The cylinder rod of the cylinder 7 is drivenly connected to the pressure plate 9. Both ends of the pressure plate 9 are connected to a pull rod 8. The two pull rods 8 pass through the air circuit sealing mounting plate 1 and are connected to the pressure plate 10. The pressure plate 10 cooperates with the check valve 11.

[0017] In this embodiment, refer to the appendix Figure 1 , 2 3. The testing mechanism includes an air circuit sealing mounting plate 1, a clamping mechanism 2, an air nozzle 3, an air pipe 4, and an air pipe 5. The clamping mechanism 2 includes a cylinder bracket 6, a cylinder 7, a pull rod 8, a pressure plate 9, a pressure plate 10, a check valve 11, and a check valve positioning seat 12. The check valve 11 is fixed to one side of the air circuit sealing mounting plate 1 via the check valve positioning seat 12. The cylinder bracket 6 has a U-shaped structure and is fixed to the other side of the air circuit sealing mounting plate 1. The air circuit sealing mounting plate 1 has vent holes for installing the air nozzle 3, air pipe 4, and air pipe 5, facilitating quick connection with the check valve 11. The pressure plates 9 and 10 are arranged parallel to each other on both sides of the air circuit sealing mounting plate 1. Inflating air pipes 4 and 5 and using the pressure sensor values ​​connected to air pipes 4 and 5 allows for functional verification of the overhauled check valve 11, ensuring successful installation.

[0018] When testing the function of the check valve inside the train, first close the check valve 11 and inflate air pipe 4. If there is no pressure change in the pressure sensor connected to air pipe 5 within 120 seconds, then open the check valve 11 and continue to inflate air pipe 4 until the pressure of the pressure sensor connected to air pipe 5 is the same as the air source. Then close the check valve 11. If there is no change in the pressure sensor connected to air pipe 5 within 120 seconds, it proves that the check valve 11 is functioning normally.

Claims

1. A train car check valve function detection mechanism characterized by: The utility model relates to a kind of air path sealing installation plate (1), press card mechanism (2), air nozzle (3), air pipe one (4) and air pipe two (5), the air path sealing installation plate (1) is opened with the air hole that is cooperated with air nozzle (3), air pipe one (4) and air pipe two (5), air nozzle (3), air pipe one (4) and air pipe two (5) are cooperated with check valve (11);The press card mechanism (2) includes cylinder bracket (6), cylinder (7), pull rod (8), pressing plate one (9) and pressing plate two (10), the cylinder barrel of cylinder (7) is fixed on cylinder bracket (6), cylinder bracket (6) is fixed on air path sealing installation plate (1), the cylinder rod of cylinder (7) is driven connection with pressing plate one (9), the both ends of pressing plate one (9) are respectively connected with a pull rod (8), two pull rod (8) respectively after passing through air path sealing installation plate (1) with pressing plate two (10) are connected, pressing plate two (10) is cooperated with check valve (11).

2. The check valve function detection mechanism for a train according to claim 1, characterized by: The cylinder bracket (6) is fixed on one side of air path sealing installation plate (1), and the check valve (11) is fixed on the other side of air path sealing installation plate (1).

3. The check valve function detection mechanism for a train according to claim 2, characterized by: The check valve (11) is fixed on the other side of air path sealing installation plate (1) by check valve positioning seat (12).

4. The check valve function detection mechanism for a train according to claim 1 or 2, characterized by: The cylinder bracket (6) is U-shaped structure.

5. The check valve function detection mechanism for a train according to claim 1, characterized by: The pressing plate one (9) and pressing plate two (10) are arranged in parallel on both sides of air path sealing installation plate (1).

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