Mechanism for detecting function of electromagnetic valve used in railway passenger car

Abstract

The utility model relates to a function detection mechanism for an electromagnetic valve used in a railway passenger car, and belongs to the technical field of rail transit. According to the technical scheme, a pressing and clamping mechanism (5) is arranged between a second pressing plate (4) and the left side of a gas path sealing mounting plate (1), and a to-be-detected electromagnetic valve (2) is arranged between a first pressing plate (3) and the right side of the gas path sealing mounting plate (1); a second air pipe (9), a third air pipe (10) and a first air pipe (11) are arranged at the positions, corresponding to the to-be-detected electromagnetic valve, of the air path sealing mounting plate, one ends of the third air pipe and the first air pipe are communicated with a left cavity and a right cavity of the electromagnetic valve respectively, and the other ends of the third air pipe and the first air pipe are connected with a first pressure transmitter (14) and a second pressure transmitter (15) respectively; the second air pipe is communicated with the air inlet chamber of the to-be-detected solenoid valve and the air pump. The device has the advantages of being safe and reliable in structure and low in cost, verifying the electrical action function and the air tightness function of the solenoid valve after maintenance, guaranteeing the normal function of the solenoid valve, and guaranteeing the normal operation of a train after loading.

Description

Technical Field

[0001] This utility model relates to a detection mechanism for the function of an in-vehicle solenoid valve in a rail passenger car, belonging to the field of rail transit technology. Background Technology

[0002] With the continuous development of my country's railways, rail passenger cars have become a popular and important means of transportation. Currently, in train pneumatic control devices, the solenoid valve is a key component. Its on / off function and airtightness testing are particularly important, affecting the normal operation of the train braking system. For example, the solenoid valve is a core component of the braking device, controlling vehicle braking and release. The performance of the solenoid valve directly affects the braking effect of the train, therefore, it requires regular maintenance and functional testing after maintenance. If the solenoid valve leaks, causing malfunction, it seriously affects railway traffic safety. Utility Model Content

[0003] The purpose of this utility model is to provide a testing mechanism for the function of solenoid valves used in railway passenger cars, which verifies the electrical operation function and airtightness function of the solenoid valves after maintenance, ensures that the solenoid valves function normally, ensures that the train runs normally after installation, and solves the above-mentioned technical problems existing in the prior art.

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

[0005] A testing mechanism for the function of an in-vehicle solenoid valve in a rail passenger car includes an air circuit sealing mounting plate, a first pressure plate, a second pressure plate, a clamping mechanism, a pull rod, a second air pipe, a third air pipe, and a first air pipe. The pull rod passes vertically through the air circuit sealing mounting plate. The second pressure plate and the first pressure plate are respectively located at the left and right ends of the pull rod. A clamping mechanism is located between the second pressure plate and the left side of the air circuit sealing mounting plate, and the solenoid valve to be tested is located between the first pressure plate and the right side of the air circuit sealing mounting plate. The clamping mechanism includes a cylinder and a cylinder bracket. The cylinder bracket is fixed on the left side of the air circuit sealing mounting plate, the cylinder body is mounted on the cylinder bracket, and the cylinder rod is connected to the second pressure plate. The air circuit sealing mounting plate has the second air pipe, the third air pipe, and the first air pipe at the position corresponding to the solenoid valve to be tested. One end of the third air pipe and the first air pipe are connected to the left and right chambers of the solenoid valve, respectively, and the other end is connected to the first pressure transmitter and the second pressure transmitter, respectively. The second air pipe connects the air inlet chamber of the solenoid valve to be tested to the air pump. Place the solenoid valve to be tested on the right side of the air circuit sealing mounting plate. Press the pressure plate two with the clamping mechanism, and tighten the pressure plate one with the pull rod to press and seal the solenoid valve to be tested on the right side of the air circuit sealing mounting plate. Ensure the solenoid valve coil is properly connected. Inflate the solenoid valve through the air pipe two, and then control the solenoid valve coil to engage and disengage, thereby controlling the on / off state of the solenoid valve. Read the values ​​from pressure transmitter one and pressure transmitter two to perform solenoid valve circuit testing, open circuit testing, and valve body airtightness testing.

[0006] The right side of the gas path sealing mounting plate is equipped with a solenoid valve sealing gasket, and the solenoid valve to be tested is fastened on the solenoid valve sealing gasket.

[0007] The right side of the gas path sealing mounting plate is provided with a solenoid valve positioning pin. The solenoid valve positioning pin matches the mounting hole on the solenoid valve to position the solenoid valve and is used for the installation of the solenoid valve and solenoid valve gasket, ensuring that the solenoid valve and solenoid valve gasket are installed in the correct position and that a seal is guaranteed.

[0008] The air passage sealing mounting plate is provided with three vent holes corresponding to the left and right chambers and the air inlet chamber of the solenoid valve. The three vent holes are used to install air pipe three, air pipe one and air pipe two respectively, so as to facilitate quick connection with the solenoid valve.

[0009] The left and right ends of the pull rod are respectively connected to pressure plate two and pressure plate one by bolts.

[0010] The positive effects of this utility model are: safe and reliable structure, low cost, verification of the electrical action function and airtightness function of the solenoid valve after maintenance, ensuring the normal function of the solenoid valve, and ensuring the normal operation of the train after installation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

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

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

[0014] In the diagram: 1. Air circuit sealing mounting plate; 2. Solenoid valve; 3. Pressure plate one; 4. Pressure plate two; 5. Clamping mechanism; 6. Pull rod; 7. Cylinder; 8. Cylinder bracket; 9. Air pipe two; 10. Air pipe three; 11. Solenoid valve sealing gasket; 12. Solenoid valve positioning pin; 13. Pressure transmitter one; 14. Pressure transmitter two; 15. Detailed Implementation

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

[0016] A detection mechanism for the function of a solenoid valve used in a rail passenger car includes an air circuit sealing mounting plate 1, a pressure plate 3, a pressure plate 4, a clamping mechanism 5, a pull rod 6, a second air pipe 9, a third air pipe 10, and a first air pipe 11. The pull rod 6 passes vertically through the air circuit sealing mounting plate 1. Pressure plates 4 and 3 are respectively installed at the left and right ends of the pull rod 6. The clamping mechanism 5 is located between pressure plate 4 and the left side of the air circuit sealing mounting plate 1, and the solenoid valve 2 to be tested is located between pressure plate 3 and the right side of the air circuit sealing mounting plate 1. The clamping mechanism 5 includes a cylinder 7 and a... The cylinder bracket 8 is fixed on the left side of the air circuit sealing mounting plate 1. The cylinder body of the cylinder 7 is mounted on the cylinder bracket 8, and the cylinder rod of the cylinder 7 is connected to the pressure plate 4. The air circuit sealing mounting plate 1 is provided with air pipe 9, air pipe 10 and air pipe 11 corresponding to the position of the solenoid valve 2 to be tested. One end of air pipe 10 and air pipe 11 are respectively connected to the left and right chambers of the solenoid valve 2, and the other end is respectively connected to pressure transmitter 14 and pressure transmitter 25. Air pipe 9 connects the air inlet chamber of the solenoid valve 2 to be tested and the air pump. The solenoid valve 2 to be tested is placed on the right side of the air circuit sealing mounting plate 1. The pressure plate 4 is pressed by the clamping mechanism 5, and the pressure plate 3 is tightened by the pull rod 6 to press and seal the solenoid valve 2 to the right side of the air circuit sealing mounting plate 1. The solenoid valve coil is properly connected. The solenoid valve 2 is inflated through the air pipe 9. Then, the solenoid valve coil is controlled to engage and disengage, thereby controlling the on and off of the solenoid valve. The values ​​of the pressure transmitter 14 and the pressure transmitter 25 are read to realize the solenoid valve's circuit test, open circuit test, and valve body airtightness test.

[0017] The right side of the gas path sealing mounting plate 1 is provided with a solenoid valve sealing gasket 12, and the solenoid valve 2 to be tested is fastened on the solenoid valve sealing gasket 12.

[0018] The right side of the gas passage sealing mounting plate 1 is provided with a solenoid valve positioning pin 13. The solenoid valve positioning pin 13 matches the mounting hole on the solenoid valve 2 to position the solenoid valve 2. It is used for the installation of the solenoid valve and the solenoid valve gasket to ensure that the solenoid valve and the solenoid valve gasket are installed in the correct position and to ensure a seal.

[0019] The air passage sealing mounting plate 1 is provided with three vent holes corresponding to the left and right chambers and the air inlet chamber of the solenoid valve 2. The three vent holes are used to install air pipe 3 10, air pipe 11 and air pipe 2 9 respectively, so as to facilitate quick connection with the solenoid valve 2.

[0020] The left and right ends of the pull rod 6 are respectively connected to the pressure plate 4 and the pressure plate 3 by bolts.

[0021] Both pressure transmitter one and pressure transmitter two are connected to a computer, enabling the computer to autonomously collect test data and generate test reports, thus meeting the quality requirements for airtightness testing of solenoid valves before installation.

[0022] In one embodiment, a detection mechanism for the function of a solenoid valve used in a rail passenger car includes a clamping mechanism 5 and an air circuit sealing mounting plate 1 arranged at the front and rear. The cylinder bracket 8 is used to fix the cylinder 7 on the air circuit sealing mounting plate 1, and the cylinder 7 provides power to the clamping mechanism 5; the pull rod 6, the first pressure plate 3, and the second pressure plate 4 are used to clamp the solenoid valve 2 and the solenoid valve sealing gasket 12 tightly against the air circuit sealing mounting plate 1 using the cylinder 7, ensuring a fixed seal.

[0023] The solenoid valve positioning pin 13 is used for the installation of solenoid valve 2 and solenoid valve gasket 12. The solenoid valve positioning pin 13 is fastened to the gas circuit sealing mounting plate 1 by threads, passes through the positioning hole of solenoid valve gasket 12 and the bolt mounting hole of solenoid valve 2, and ensures that solenoid valve 2 and solenoid valve gasket 12 are installed in the correct position and ensure sealing.

[0024] See attached document Figure 1 , 2 3. The solenoid valve 2 is fixed on the air circuit sealing mounting plate 1 by the clamping mechanism 5. The solenoid valve 2 is matched with the solenoid valve sealing gasket 12 and the solenoid valve positioning pin 13 on the air circuit sealing mounting plate 1. After the solenoid valve coil is properly connected, the solenoid valve 2 is inflated through the second air pipe 9 to control the coil of the solenoid valve 2 to engage and disengage, thereby controlling the on and off of the solenoid valve. The pressure values ​​of the pressure transmitter 14 connected to the third air pipe 10 and the pressure transmitter 2 15 connected to the first air pipe 11 are read to realize the solenoid valve passage test, open circuit test and valve body airtightness test, to ensure smooth installation.

Claims

1. A detection mechanism for the function of a solenoid valve used inside a rail passenger car, characterized in that: The system includes a gas path sealing mounting plate (1), pressure plate one (3), pressure plate two (4), a clamping mechanism (5), a pull rod (6), a second air pipe (9), a third air pipe (10), and a first air pipe (11). The pull rod (6) passes vertically through the gas path sealing mounting plate (1). Pressure plate two (4) and pressure plate one (3) are respectively installed at the left and right ends of the pull rod (6). A clamping mechanism (5) is provided between pressure plate two (4) and the left side of the gas path sealing mounting plate (1). A solenoid valve (2) to be tested is provided between pressure plate one (3) and the right side of the gas path sealing mounting plate (1). The clamping mechanism (5) includes a cylinder (7) and a cylinder bracket (8). The cylinder bracket (8) is fixed on the left side of the air circuit sealing mounting plate (1). The cylinder body of the cylinder (7) is set on the cylinder bracket (8). The cylinder rod of the cylinder (7) is connected to the pressure plate two (4). The air circuit sealing mounting plate (1) is provided with air pipe two (9), air pipe three (10) and air pipe one (11) corresponding to the position of the solenoid valve (2) to be tested. One end of air pipe three (10) and air pipe one (11) are respectively connected to the left and right chambers of the solenoid valve (2), and the other end is respectively connected to pressure transmitter one (14) and pressure transmitter two (15). Air pipe two (9) is connected to the air inlet chamber of the solenoid valve (2) to be tested and the air pump.

2. The detection mechanism for the function of a solenoid valve used inside a rail passenger car according to claim 1, characterized in that: The gas path sealing mounting plate (1) has a solenoid valve sealing gasket (12) on the right side, and the solenoid valve (2) to be tested is attached to the solenoid valve sealing gasket (12).

3. A detection mechanism for the function of a solenoid valve used inside a rail passenger car according to claim 1 or 2, characterized in that: The gas passage sealing mounting plate (1) is provided with a solenoid valve positioning pin (13) on the right side, and the solenoid valve positioning pin (13) matches the mounting hole on the solenoid valve (2).

4. A detection mechanism for the function of a solenoid valve used inside a rail passenger car according to claim 1 or 2, characterized in that: The air passage sealing mounting plate (1) is provided with three vent holes corresponding to the left and right chambers and the air inlet chamber of the solenoid valve (2). The three vent holes are used to install the air pipe three (10), air pipe one (11) and air pipe two (9), respectively.

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