Pressure detection instrument for air pressure switch of motor train unit

Abstract

The utility model relates to the technical field of motor train unit air pressure switch pressure detection, in particular to a motor train unit air pressure switch pressure detection instrument which comprises a detector body, a USB interface is installed at the bottom end of the detector body, and a display screen is fixedly installed on the front face of the detector body. The right side of the top end of the detector body is fixedly provided with an air pressure sensor interface and a state sensor interface, a second wire is inserted into the air pressure sensor interface, one end of the second wire is fixedly connected with an air pressure sensor, one end of the air pressure sensor is fixedly connected with a connector, and a first wire is inserted into the state sensor interface. According to the pressure detection instrument for the air pressure switch of the motor train unit, the detection instrument can monitor the pressure change and state of the air pressure switch in real time and visually display the pressure change and state through the display screen, so that an operator can know the working condition of the air pressure switch in time, problems can be quickly found and solved, and the safety and reliability of the motor train unit are improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure detection technology for pneumatic switches in high-speed trains, specifically a pressure detection instrument for pneumatic switches in high-speed trains. Background Technology

[0002] The air pressure switch is a core control component that enables functions such as monitoring the total air pressure of the EMU braking system, braking control, and automatic opening and locking of the headgear. The accuracy of its action value directly affects the safety and reliability of EMU operation.

[0003] Traditional manual testing methods are not only inefficient, but also susceptible to human error, leading to inaccurate results. To ensure the reliability and accuracy of pneumatic switches and improve testing efficiency and accuracy, we propose a pressure testing instrument for pneumatic switches in high-speed trains. Utility Model Content

[0004] The purpose of this invention is to provide a pressure detection instrument for the air pressure switch of a high-speed train to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pressure detection instrument for a train's air pressure switch includes a detector body. A USB interface is installed at the bottom of the detector body, and a display screen is fixedly installed on the front of the detector body. An air pressure sensor interface and a status sensor interface are fixedly installed on the top right side of the detector body. A second wire is plugged into the air pressure sensor interface, and one end of the second wire is fixedly connected to an air pressure sensor. One end of the air pressure sensor is fixedly connected to a connector. A first wire is plugged into the status sensor interface, and one end of the first wire is fixedly connected to a mounting plate. An air pressure switch status sensor is fixedly installed at the center of one side surface of the mounting plate. A protective component is also fixedly installed on the top of the detector body to cover the air pressure sensor interface and the status sensor interface. A switch is installed on the top left side of the detector body.

[0007] Preferably, both the other end of wire one and wire two are equipped with connectors.

[0008] Preferably, a hexagonal block is fixedly installed on the outer surface of the pressure sensor, and an external thread is fixedly installed on the outer surface of the connector.

[0009] Preferably, multiple suction cups are fixedly mounted on the surface of the mounting plate, and the suction cups are evenly arranged around the pneumatic switch status sensor.

[0010] Preferably, the protection assembly includes two symmetrically arranged protective shells. A slider is fixedly installed on the side of each protective shell near the detector body. Two grooves are formed on the surface of the detector body. A slide rod is fixedly installed inside each groove. The sliders extend into the grooves and are slidably mounted on the slide rods. Two wire grooves are formed between the two protective shells, which are respectively matched with wire one and wire two. Matching magnetic blocks are also fixedly installed on the opposite sides of the two protective shells.

[0011] Preferably, elastic pads are fixedly installed on the inner wall of the wire groove to fix wire one and wire two.

[0012] Compared with the prior art, this utility model provides a pressure detection instrument for the air pressure switch of a high-speed train, which has the following beneficial effects:

[0013] 1. The pressure testing instrument for the air pressure switch of this EMU uses high-precision air pressure sensors and status sensors, which can accurately measure the pressure value and status information of the air pressure switch, ensuring the accuracy of the test results. Compared with traditional manual testing methods, it greatly improves the testing accuracy.

[0014] 2. The pressure detection instrument for the pneumatic switch of this EMU can monitor the pressure changes and status of the pneumatic switch in real time and display them intuitively on the screen. This allows operators to understand the working status of the pneumatic switch in a timely manner, facilitates the rapid detection and resolution of problems, and improves the safety and reliability of the EMU. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model from another angle;

[0017] Figure 3 This is a schematic diagram of the protective component of this utility model when it is opened;

[0018] Figure 4 This is a schematic diagram of the protective component structure of this utility model.

[0019] In the diagram: 1. Detector body; 2. USB interface; 3. Display screen; 4. Barometric pressure sensor interface; 5. Status sensor interface; 6. Protective shell; 7. Switch; 8. Slide groove; 9. Slide rod; 10. Slider; 11. Magnetic block; 12. Wire groove; 13. Wire 1; 14. Mounting plate; 15. Suction cup; 16. Barometric pressure switch status sensor; 17. Wire 2; 18. Barometric pressure sensor; 19. Connector. Detailed Implementation

[0020] Please see Figure 1-4A pressure detection instrument for a train's air pressure switch includes a detector body 1. A USB interface 2 is installed at the bottom of the detector body 1. A display screen 3 is fixedly installed on the front of the detector body 1. An air pressure sensor interface 4 and a status sensor interface 5 are fixedly installed on the top right side of the detector body 1. A second wire 17 is plugged into the air pressure sensor interface 4. One end of the second wire 17 is fixedly connected to an air pressure sensor 18. One end of the air pressure sensor 18 is fixedly connected to a connector 19. A first wire 13 is plugged into the status sensor interface 5. One end of the first wire 13 is fixedly connected to a mounting plate 14. An air pressure switch status sensor 16 is fixedly installed at the center of one side surface of the mounting plate 14. A protective component is also fixedly installed on the top of the detector body 1, covering the air pressure sensor interface 4 and the status sensor interface 5. A switch 7 is installed on the top left side of the detector body 1.

[0021] The pressure switch status sensor 16 is a precision photoelectric sensor that determines the status of the pressure switch by emitting light onto the red contact in the middle of the pressure switch.

[0022] Press switch 7 to start the detection instrument. The pressure sensor 18 detects the pressure value at the pressure switch in real time and transmits the signal to the detector body 1. At the same time, the pressure switch status sensor 16 monitors the on / off status of the pressure switch and determines whether the pressure switch is operating normally under the set pressure. This information is transmitted to the detector body 1 through wire 13 and wire 17.

[0023] The processing chip inside the detector body 1 processes and analyzes the collected pressure data and status signals. The display screen 3 displays the current pressure value and status information of the air pressure switch in real time, including whether it is operating normally and whether there is a fault. Operators can adjust and maintain the air pressure switch according to the information on the display screen.

[0024] Both wire 13 and wire 2 17 have connectors installed at their other ends to facilitate connecting the wires to the detector's interface.

[0025] Furthermore, a hexagonal block is fixedly installed on the outer surface of the pressure sensor 18, and an external thread is fixedly installed on the outer surface of the connector 19. By rotating the hexagonal block, the connector 19 can be easily rotated and installed on the pressure pipeline through the external thread.

[0026] The mounting plate 14 has multiple suction cups 15 fixedly mounted on its surface. The suction cups 15 are evenly arranged around the air pressure switch status sensor 16. The mounting plate 14 is attached to the glass cover surface outside the air pressure switch by the suction cups 15. The air pressure switch status sensor 16 is aligned with the air pressure switch and is used to detect the status of the air pressure switch.

[0027] See Figure 3 and 4The protective assembly includes two symmetrically arranged protective shells 6. A slider 10 is fixedly installed on the side of each protective shell 6 near the detector body 1. Two grooves 8 are opened on the surface of the detector body 1. A slide rod 9 is fixedly installed inside each groove 8. The sliders 10 extend into the grooves 8 and slide on the slide rods 9. Two wire grooves 12 are opened between the two protective shells 6, which are matched with wire 13 and wire 2 17 respectively. Matching magnetic blocks 11 are also fixedly installed on the opposite side of the two protective shells 6 to close the two protective shells 6. The protective shells 6 are attracted and fixed together by the magnetic blocks 11, which facilitates the limiting and fixing of the wires and prevents the wire joints from loosening between the detector body 1 and the detector body 1, thus affecting the normal operation of the device.

[0028] Furthermore, elastic pads are fixedly installed on the inner wall of the wire groove 12 to fix wire one 13 and wire two 17, and to prevent wire one 13 and wire two 17 from sliding and affecting the normal operation of the device.

[0029] Working principle: The pressure detection instrument for the air pressure switch of the EMU connects the air pressure sensor 18 to the air pressure pipeline of the EMU air pressure switch through the connector 19 to ensure a tight and leak-free connection. The mounting plate 14 is attached to the glass cover surface outside the air pressure switch through the suction cup 15. The air pressure switch status sensor 16 is aligned with the position of the air pressure switch to detect the status of the air pressure switch.

[0030] Then, the pressure sensor 18 and the pressure switch status sensor 16 are connected to the detector body 1 via wires. The two protective shells 6 are closed to facilitate the limiting and fixing of the wires, preventing the wire joints from loosening and affecting the normal operation of the device. Then, the switch 7 is pressed to start the detection instrument. The pressure sensor 18 detects the pressure value at the pressure switch in real time and transmits the signal to the detector body 1. At the same time, the pressure switch status sensor 16 monitors the on / off state of the pressure switch and determines whether the pressure switch is operating normally under the set pressure. This information is transmitted to the detector body 1 via wire 13 and wire 17.

[0031] The processing chip inside the detector body 1 processes and analyzes the collected pressure data and status signals. The display screen 3 displays the current pressure value and status information of the air pressure switch in real time, including whether it is operating normally and whether there is a fault. Operators can adjust and maintain the air pressure switch according to the information on the display screen.

[0032] The testing instrument can be connected to external devices (such as computers) via USB interface 2, and the test data can be transferred to the external devices for further analysis and storage, which facilitates subsequent data management and maintenance.

Claims

1. A pressure detection instrument for EMU air pressure switch, comprising a detector main body (1), characterized in that: The detector body (1) is equipped with a USB interface (2) at the bottom. The detector body (1) is equipped with a display screen (3) on the front. The detector body (1) is equipped with a pressure sensor interface (4) and a status sensor interface (5) on the top right side. A second wire (17) is plugged into the pressure sensor interface (4). A pressure sensor (18) is fixedly connected to one end of the second wire (17). A connector (19) is fixedly connected to one end of the pressure sensor (18). A first wire (13) is plugged into the status sensor interface (5). A mounting plate (14) is fixedly connected to one end of the first wire (13). A pressure switch status sensor (16) is fixedly installed at the center of one side surface of the mounting plate (14). A protective component is also fixedly installed on the top of the detector body (1) to cover the pressure sensor interface (4) and the status sensor interface (5). A switch (7) is installed on the top left side of the detector body (1).

2. The pressure detecting instrument of the EMU air pressure switch according to claim 1, characterized in that: Both the other end of the first conductor (13) and the second conductor (17) are equipped with connectors.

3. The pressure detecting instrument of the EMU air pressure switch according to claim 1, characterized in that: A hexagonal block is fixedly installed on the outer surface of the pressure sensor (18), and an external thread is fixedly installed on the outer surface of the connector (19).

4. The pressure detecting instrument of the EMU air pressure switch according to claim 1, characterized in that: Multiple suction cups (15) are fixedly mounted on the surface of the mounting plate (14), and the suction cups (15) are evenly arranged around the air pressure switch status sensor (16).

5. The pressure detecting instrument of the EMU air pressure switch according to claim 1, characterized in that: The protective assembly includes two symmetrically arranged protective shells (6). Each protective shell (6) has a slider (10) fixedly installed on the side near the detector body (1). The detector body (1) has two grooves (8) on its surface. Each groove (8) has a slide rod (9) fixedly installed inside it. The sliders (10) extend into the grooves (8) and slide on the slide rods (9). Two wire grooves (12) are opened between the two protective shells (6), which are matched with wire one (13) and wire two (17) respectively. Matching magnetic blocks (11) are also fixedly installed on the opposite side of the two protective shells (6).

6. The pressure detecting instrument of the EMU air pressure switch according to claim 5, characterized in that: The inner wall of each wire groove (12) is fixedly equipped with an elastic pad for fixing wire one (13) and wire two (17).

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