Pressure switch testing device and vehicle

Abstract

The utility model discloses a pressure switch testing device and a vehicle, and relates to the vehicle field, the pressure switch testing device is internally provided with a pressure sensor, a controller, a pressure switch motion detection plug and a switch module, the controller is firstly used to control the switch module to be turned on, so that air enters an air pipeline where a pressure switch is located; the state of the pressure switch after air inflow is collected through the pressure switch action detection plug, the pressure of the pressure switch is collected through the pressure sensor, and finally the controller can determine whether the pressure switch breaks down or not in time based on the state of the pressure switch and the pressure of the pressure switch; and timely determining whether the rail vehicle where the pressure switch is located has a fault or not.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a pressure switch testing device and a vehicle. Background Art

[0002] With the development of science and technology, the safety of rail vehicles has become increasingly important. The safety of rail vehicles is related to whether the pressure switch in the air pipeline of the air source system in the rail vehicle is faulty. However, there is no detection device in the existing technology that can stably test whether the pressure switch is faulty, and thus it is impossible to detect whether the rail vehicle has a fault in a timely manner. Utility Model Content

[0003] The purpose of the utility model is to provide a pressure switch testing device and vehicle. This solution first controls the switch module to open through a controller to allow air to enter the air pipe where the pressure switch is located, and collects the status of the pressure switch after air intake through the pressure switch action detection plug and the pressure of the pressure switch through the pressure sensor. Finally, the controller will promptly determine whether the pressure switch has failed based on the status of the pressure switch and the pressure of the pressure switch, and promptly determine whether the rail vehicle where the pressure switch is located has failed.

[0004] In order to solve the above technical problems, the utility model provides a pressure switch testing device, comprising: a pressure sensor, a controller, a pressure switch action detection plug and a switch module;

[0005] The pressure switch action detection plug is connected to the pressure switch and is used to collect the status of the pressure switch;

[0006] The pressure sensor is connected to the pressure switch and is used to collect the pressure of the pressure switch;

[0007] The first end of the switch module is connected to the external air source, and the second end is connected to the air pipeline where the pressure switch is located;

[0008] The controller is respectively connected to the pressure sensor, the pressure switch action detection plug, and the control end of the switch module, and is used to determine whether the pressure switch fails based on the state of the pressure switch and the pressure of the pressure switch.

[0009] Optionally, the switch module is a solenoid valve, the control end of the solenoid valve is connected to the controller, the first end of the solenoid valve is connected to an external air source, and the second end of the solenoid valve is connected to the air pipeline where the pressure switch is located.

[0010] Optionally, the solenoid valve includes:

[0011] a coil connected to the controller and configured to control the closing of a movable contact of a normally open contact and a stationary contact of the normally open contact after receiving an electrical signal transmitted by the controller;

[0012] The movable contact of the normally open contact is connected to the external gas source;

[0013] The static contact of the normally open contact is connected to the air pipeline where the pressure switch is located.

[0014] Optionally, also include:

[0015] An alarm module is connected to the controller and is used to issue a corresponding alarm after the controller determines that the pressure switch has failed based on the state of the pressure switch and the pressure of the pressure switch.

[0016] Optionally, the alarm module is a sound alarm module and / or a display alarm module.

[0017] Optionally, the controller includes:

[0018] A controller body and a wireless communication module, wherein the wireless communication module is wirelessly connected to the terminal.

[0019] Optionally, the controller includes:

[0020] The controller body and the wired communication module are connected to the terminal via wires.

[0021] In order to solve the above technical problems, the present invention also provides a vehicle, comprising: the pressure switch testing device as described above and a vehicle body, wherein the vehicle body is connected to the pressure switch testing device.

[0022] The purpose of the utility model is to provide a pressure switch testing device and a vehicle. The pressure switch testing device is provided with a pressure sensor, a controller, a pressure switch action detection plug and a switch module. The scheme first controls the switch module to open through the controller to allow air to enter the air pipe where the pressure switch is located, and collects the state of the pressure switch after the air intake through the pressure switch action detection plug and the pressure of the pressure switch through the pressure sensor. Finally, the controller will promptly determine whether the pressure switch has a fault based on the state of the pressure switch and the pressure of the pressure switch, and promptly determine whether the rail vehicle where the pressure switch is located has a fault. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 This is a structural diagram of a pressure switch testing device provided by the utility model;

[0025] Figure 2 This is a structural schematic diagram of another pressure switch testing device provided by the utility model. DETAILED DESCRIPTION

[0026] The core of the utility model is to provide a pressure switch testing device and vehicle. This solution first controls the switch module to open through the controller to allow air to enter the air pipe where the pressure switch is located, and collects the status of the pressure switch after air intake through the pressure switch action detection plug and the pressure of the pressure switch through the pressure sensor. Finally, the controller will promptly determine whether the pressure switch has failed based on the status of the pressure switch and the pressure of the pressure switch, and promptly determine whether the rail vehicle where the pressure switch is located has failed.

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Please refer to Figure 1 , Figure 1 This is a structural diagram of a pressure switch testing device provided by the present invention. The pressure switch testing device comprises: a pressure sensor 1, a controller 2, a pressure switch action detection plug 3 and a switch module 4;

[0029] The pressure switch action detection plug 3 is connected to the pressure switch and is used to collect the status of the pressure switch;

[0030] The pressure sensor 1 is connected to the pressure switch and is used to collect the pressure of the pressure switch;

[0031] The first end of the switch module 4 is connected to the external air source, and the second end is connected to the air pipeline where the pressure switch is located;

[0032] The controller 2 is connected to the pressure sensor 1, the pressure switch action detection plug 3, and the control end of the switch module 4 respectively, and is used to determine whether the pressure switch fails based on the state of the pressure switch and the pressure of the pressure switch.

[0033] In the present invention, considering that whether a pressure switch fails is related to the pressure when the pressure switch is actuated, the present application provides a pressure switch testing device, and the pressure switch testing device is provided with a pressure sensor 1, a controller 2, a pressure switch actuation detection plug 3, and a switch module 4. In order to make the pressure switch work in the actuation state, the controller 2 needs to first control the switch module 4 to turn on. Because the switch module 4 is arranged between the external air source and the air pipeline where the pressure switch is located, when the switch module 4 is turned on, air from the external air source will enter the air pipeline where the pressure switch is located. At this time, it is necessary to collect the state of the pressure switch after air intake through the pressure switch actuation detection plug 3. If the state of the pressure switch is in the actuation state, the pressure of the pressure switch can be collected through the pressure sensor 1, and the collected pressure can be compared with the standard pressure to determine whether the pressure switch has failed, and further determine whether the rail vehicle where the pressure switch is located has failed. Similarly, if the state of the pressure switch after air intake collected by the pressure switch actuation detection plug 3 is not in the actuation state, then even if the pressure of the pressure switch collected by the pressure sensor 1 matches the standard pressure, the controller 2 will determine that the pressure switch has failed, and further determine that the rail vehicle where the pressure switch is located has failed.

[0034] It should be noted that if Figure 2 As shown, the pressure switch test device is connected to the rail vehicle air line test point and pressure switch via a pressure sensor 1 and a pressure switch actuation detection plug 3, respectively. A control unit controls the solenoid valve's inflation and deflation, changing the air line pressure. The pressure switch actuation detection plug 3 detects the pressure switch's actuation status. Upon detecting actuation, the control unit detects and records the current pressure value via pressure sensor 1 and sends it to a handheld terminal for comparison with a preset standard value to generate the test result. This enables detection of the pressure switch's actuation pressure. A wireless module is incorporated into the control unit, enabling wireless networking and unified control from a handheld terminal. This demonstrates the testing of pressure switches on multiple rail vehicle trains.

[0035] This embodiment provides a pressure switch testing device, which is provided with a pressure sensor 1, a controller 2, a pressure switch action detection plug 3 and a switch module 4. This solution first controls the switch module 4 to open through the controller 2 to allow air to enter the air pipeline where the pressure switch is located, and collects the state of the pressure switch after air intake through the pressure switch action detection plug 3 and the pressure of the pressure switch through the pressure sensor 1. Finally, the controller 2 will promptly determine whether the pressure switch has failed based on the state of the pressure switch and the pressure of the pressure switch, and promptly determine whether the rail vehicle where the pressure switch is located has failed.

[0036] Based on the above embodiment:

[0037] As an optional embodiment, the switch module 4 is a solenoid valve, the control end of the solenoid valve is connected to the controller 2, the first end of the solenoid valve is connected to the external air source, and the second end of the solenoid valve is connected to the air pipeline where the pressure switch is located.

[0038] In the present invention, considering that the solenoid valve has the characteristics of fast operation, high reliability, long service life, low price, simple structure, easy installation and maintenance, this solution adopts the solenoid valve as the switch module 4, and the controller 2 controls the opening of the solenoid valve to control the air in the external air source to enter the air pipeline where the pressure switch is located, which is convenient for subsequent detection of pressure switch failures.

[0039] As an optional embodiment, the solenoid valve includes:

[0040] The coil is connected to the controller 2 and is used to control the closing of the movable contact of the normally open contact and the static contact of the normally open contact after receiving the electrical signal transmitted by the controller 2;

[0041] The moving contact of the normally open contact is connected to the external gas source;

[0042] The static contact of the normally open contact is connected to the air pipeline where the pressure switch is located.

[0043] In the present invention, the solenoid valve includes a coil and a normally open contact, wherein the controller 2 controls the solenoid valve by transmitting an electrical signal to the coil of the solenoid valve. When the controller 2 transmits an electrical signal to the coil of the solenoid valve, the coil of the solenoid valve is energized and then closes the moving contact of the normally open contact and the static contact of the normally open contact; conversely, if the controller 2 does not transmit an electrical signal to the coil of the solenoid valve, the coil of the solenoid valve is not energized and will not close the moving contact of the normally open contact and the static contact of the normally open contact. The solenoid valve has a simple structure and fast operation, which improves the efficiency of the solution.

[0044] As an optional embodiment, the method further includes:

[0045] The alarm module is connected to the controller 2 and is used to issue a corresponding alarm after the controller 2 determines that the pressure switch has failed based on the state of the pressure switch and the pressure of the pressure switch.

[0046] In the present utility model, an alarm module is also provided in the pressure switch testing device. When the controller 2 determines that the pressure switch has failed based on the state of the pressure switch and the pressure of the pressure switch, an alarm is issued to promptly remind the user that the pressure switch has failed, which is convenient for maintenance personnel to perform maintenance as soon as possible, avoiding failure of the rail vehicle due to long-term failure of the pressure switch, and improving the safety of the solution.

[0047] As an optional embodiment, the alarm module is a sound alarm module and / or a display alarm module.

[0048] In the present invention, the alarm module can adopt a sound alarm module, that is, when the controller 2 determines that the pressure switch has failed based on the state of the pressure switch and the pressure of the pressure switch, a sound alarm is issued; similarly, the alarm module can also adopt a display alarm module, that is, when the controller 2 determines that the pressure switch has failed based on the state of the pressure switch and the pressure of the pressure switch, a display alarm is issued; the alarm module can also adopt a sound alarm module and a display alarm module, that is, when the controller 2 determines that the pressure switch has failed based on the state of the pressure switch and the pressure of the pressure switch, a sound alarm and a display alarm are issued. The user can be more clearly reminded of the failure of the pressure switch at this time by means of sound alarm and / or display alarm.

[0049] As an optional embodiment, the controller 2 includes:

[0050] The controller 2 body and the wireless communication module are wirelessly connected to the terminal.

[0051] In the present invention, considering that the rail vehicles in the prior art usually have a train of 6 to 8 formations, the corresponding pressure switches are numerous and widely distributed. Therefore, considering the actual detection of pressure switches in multiple rail vehicles, selecting a controller 2 that can communicate wirelessly is more convenient for networking multiple wireless controllers 2 to simultaneously detect the pressure switches of multiple rail vehicles. Therefore, this solution also provides a wireless communication module in the controller 2 body, and the wireless communication module is wirelessly connected to the terminal, that is, the pressure switch detection results can be wirelessly transmitted to the terminal, which greatly improves the degree of automation of the solution, eliminates the need for manual labor, improves test efficiency, and greatly reduces test costs.

[0052] It's important to note that pressure switches connected to the air lines of a rail vehicle's braking and ventilation systems are crucial for the vehicle control system to determine whether the pneumatic devices are operating. Testing the operating value of pressure switches is a necessary test during new rail vehicle construction and overhaul. For a train of six to eight cars, the number of pressure switches is large and widely distributed. Testing the operation of these pressure switches is labor-intensive and time-consuming. Therefore, there is a need to improve the automation of pressure switch testing to increase testing efficiency and reduce labor costs.

[0053] It should also be noted that the pressure switch actuation detection plug 3 is connected to the rail vehicle control air line. By controlling the opening and closing of the solenoid valve to change the air pressure in the air line, the actuation pressure value of the vehicle pressure switch is detected and recorded, compared with the preset standard value, and the test results are generated. This utility model can be used to network multiple test devices through a wireless module, enabling simultaneous detection of the actuation values ​​of multiple rail vehicle pressure switches. This utility model has a high degree of automation, reduces the number of test personnel, and improves test efficiency.

[0054] As an optional embodiment, the controller 2 includes:

[0055] The controller 2 body and the wired communication module are connected to the terminal via wires.

[0056] In the present invention, taking into account the stability and transmission speed of data transmission between the controller 2 and the terminal, the controller 2 of this solution includes a controller 2 body and a wired communication module, that is, the controller 2 adopted in this solution is a wired controller 2, which is connected to the terminal by wire through the wired communication module, and then the detection result of the pressure switch is transmitted to the terminal by wire. Because this solution adopts wired transmission technology, it has the characteristics of fast transmission speed, strong stability of data transmission and high security.

[0057] The present invention further provides an embodiment corresponding to a vehicle, comprising: the pressure switch testing device as described above and a vehicle body, wherein the vehicle body is connected to the pressure switch testing device.

[0058] The vehicle provided in this embodiment corresponds to the above-mentioned pressure switch testing device, so it has the same beneficial effects as the above-mentioned pressure switch testing device. Therefore, for the embodiments of the vehicle part, please refer to the description of the embodiments of the pressure switch testing device part, which will not be repeated here.

[0059] It should be noted that, in this specification, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0060] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pressure switch testing device, characterized in that: include: Pressure sensor, controller, pressure switch action detection plug and switch module; The pressure switch action detection plug is connected to the pressure switch and is used to collect the status of the pressure switch; The pressure sensor is connected to the pressure switch and is used to collect the pressure of the pressure switch; The first end of the switch module is connected to the external air source, and the second end is connected to the air pipeline where the pressure switch is located; The controller is respectively connected to the pressure sensor, the pressure switch action detection plug, and the control end of the switch module, and is used to determine whether the pressure switch fails based on the state of the pressure switch and the pressure of the pressure switch.

2. The pressure switch testing device according to claim 1, characterized in that: The switch module is a solenoid valve, a control end of the solenoid valve is connected to the controller, a first end of the solenoid valve is connected to an external air source, and a second end of the solenoid valve is connected to the air pipeline where the pressure switch is located.

3. The pressure switch testing device according to claim 2, characterized in that: The solenoid valve comprises: a coil connected to the controller and configured to control the closing of a movable contact of a normally open contact and a stationary contact of the normally open contact after receiving an electrical signal transmitted by the controller; The movable contact of the normally open contact is connected to the external gas source; The static contact of the normally open contact is connected to the air pipeline where the pressure switch is located.

4. The pressure switch testing device according to claim 1, wherein: Also includes: An alarm module is connected to the controller and is used to issue a corresponding alarm after the controller determines that the pressure switch has failed based on the state of the pressure switch and the pressure of the pressure switch.

5. The pressure switch testing device according to claim 4, characterized in that: The alarm module is a sound alarm module and / or a display alarm module.

6. The pressure switch testing device according to any one of claims 1 to 5, characterized in that: The controller includes: A controller body and a wireless communication module, wherein the wireless communication module is wirelessly connected to the terminal.

7. The pressure switch testing device according to any one of claims 1 to 5, characterized in that: The controller includes: The controller body and the wired communication module are connected to the terminal via wires.

8. A vehicle, characterized in that: include: The pressure switch testing device and vehicle body according to any one of claims 1 to 7, wherein the vehicle body is connected to the pressure switch testing device.

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