Gas-water double-detection leakage detection equipment

Abstract

The utility model discloses a gas-water double-detection leakage detection device which comprises a box body and a control system, and a water tank, a gas distribution cabinet and a power distribution box are arranged in the box body. And the control system comprises a PLC (Programmable Logic Controller) and a manual switch button. A gas source processing assembly is arranged in the gas distribution cabinet. A detection plate is arranged in a hollow part above the box body, and a workpiece clamp, an air cylinder, an external detection sensor, an air and water inlet mechanism and an air and water outlet mechanism are installed on the detection plate. The plugging head is detachably installed on the air and water outlet mechanism, the internal detection sensor is installed in the air and water outlet mechanism, the detection plate is connected with the connection adjusting component, and the connection adjusting component is installed on the box body through the guide column. The device has the beneficial effects that the automation degree is high, the judgment is accurate, the positioning is quick, the detection is quick, the sensitivity is high, and the detection accuracy and reliability are ensured. In addition, the equipment can accurately judge the position of a leakage point, so that the subsequent repairing work is supported.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a gas-water double leak detection device. Background Art

[0002] In the field of electric vehicles, the airtightness and waterproof performance detection of engine casings and other components are important links to ensure product quality and reliability. Among them, the electric module casing with circuits installed inside has higher requirements for airtightness and waterproof performance. However, traditional detection methods rely on visual inspection or airtightness testing after assembly of the assembly. This method has slow detection efficiency and cannot accurately identify and eliminate potential leakage risks before the casing is assembled, resulting in increased costs caused by later maintenance and scrapping. In addition, for the waterproof performance detection of the casing and the water channel cover plate, the current method is to observe whether there is liquid seepage after injecting liquid and pressurizing. However, due to the large volume, dark color, and complex internal structure of the engine casing, it is difficult for operators to accurately judge whether there is water seepage, resulting in low leak detection accuracy. Summary of the Utility Model

[0003] (1) Problems to be Solved

[0004] The technical problem to be solved by the utility model is to provide a gas-water double leak detection device according to the current situation of the prior art.

[0005] (2) Technical Solutions

[0006] The utility model is realized by the following technical solutions: The utility model discloses a gas-water double leak detection device, which includes a box body, a control system. Inside the box body, there are a water tank, a gas distribution cabinet and a distribution box. The control system includes a PLC controller and a manual switch button; inside the gas distribution cabinet, there is a gas source treatment component. In the hollow part above the box body, there is a detection board. On the detection board, there are workpiece jigs, cylinders, external detection sensors, air inlet and water inlet mechanisms and air outlet and water outlet mechanisms. The plugging head is installed on the air inlet and water inlet mechanism in a detachable manner, and an internal detection sensor is installed inside the air inlet and water inlet mechanism. The detection board is connected with a connection adjustment component, and the connection adjustment component is installed on the box body through a guide post.

[0007] By adopting the above technical solutions, the workpiece to be tested is installed on the detection board, fixed by the workpiece jig and then cooperated with the plugging head to be installed inside the device. The device is started through the manual switch button to automatically detect the airtightness of the placed workpiece and whether there is liquid leakage.

[0008] Furthermore, a dust-proof cover and an opening and closing plate are installed above the box body. Foot seats are installed at the bottom of the box body and are connected with water inlet and outlet pipes, and water inlet and outlet valves are arranged on the water inlet and outlet pipes.

[0009] By adopting the above technical solutions, the dust cover and the opening / closing plate play a role in providing sealing protection for this equipment. Through the inlet / outlet water pipes and the inlet / outlet water valves, water for detecting liquid leakage can be provided for the liquid leakage detection function and stored in the water tank.

[0010] Furthermore, an air storage tank is installed at the non-hollowed part of the top of the box body.

[0011] By adopting the above technical solutions, the air storage tank provides gases for the air source treatment components for sealing tests and cylinders.

[0012] Furthermore, a runner is installed on the connection and adjustment component; the runner is used to raise or lower the horizontal height of the detection plate.

[0013] By adopting the above technical solutions, the runner is arranged on the connection and adjustment component, enabling the detection plate to move up and down through the runner, which facilitates the user to install the workpiece on the detection plate.

[0014] Furthermore, the air source treatment components include a hand slide valve, an air filter, a pressure reducing valve, and an oil mist lubricator.

[0015] By adopting the above technical solutions, the air filter, the pressure reducing valve, and the oil mist lubricator are used to purify, filter, and reduce the pressure of the gases from the air storage tank to meet the requirements for gases in airtight performance tests. The hand slide valve facilitates manual control of the intake air.

[0016] Furthermore, a touch screen and operation buttons are set outside the PLC controller.

[0017] By adopting the above technical solutions, the automation, remote control, and parameter customization settings of the test process can be realized through the PLC controller, the touch screen, and the operation buttons, improving the efficiency and flexibility of the test work; it can also enhance the stability and reliability of the system, ensuring the accuracy and reliability of the test results.

[0018] Furthermore, a processing software, an air detection spot check program, and a liquid detection spot check program are installed inside the PLC controller.

[0019] By adopting the above technical solutions, with the programmatic setting of air-liquid sealing tests, the qualification rate of the test workpieces can be intelligently controlled through the PLC controller. Unqualified test workpieces will be prompted in the PLC controller and cannot enter other test and completion links.

[0020] (III) Beneficial effects

[0021] The utility model realizes the intelligent air-liquid tightness detection of the workpiece shell through a PLC controller, a workpiece fixture, an external detection sensor and an internal detection sensor. It has the advantages of high automation degree, accurate judgment, fast positioning, and fast detection, which can improve the detection speed in machining production, accelerate the overall production speed, and can adapt to shells of different shapes by simply disassembling and replacing the plug head, with a wide application range. At the same time, this equipment can accurately judge the position of the leakage point, thus supporting subsequent repair work; it has high sensitivity, ensuring the accuracy and reliability of the detection. Brief Description of the Drawings

[0022] Figure 1 Fig. 6 is a three-dimensional structure diagram (1) of a gas-water double leakage detection device described in the utility model;

[0023] Figure 2 Fig. 10 is another three-dimensional structure diagram (2) of a gas-water double leakage detection device described in the utility model;

[0024] The reference signs are explained as follows:

[0025] 1. Box body; 2. Control system; 3. Water tank; 4. Gas distribution cabinet; 5. Distribution box; 6. PLC controller; 7. Manual switch button; 8. Air source treatment component; 9. Detection board; 10. Workpiece fixture; 11. Cylinder; 12. External detection sensor; 13. Air inlet and water inlet mechanism; 14. Air outlet and water outlet mechanism; 15. Plug head; 16. Internal detection sensor; 17. Connection adjustment component; 18. Guide post; 19. Dust cover; 20. Opening and closing plate; 21. Foot seat; 22. Inlet and outlet water pipe; 23. Inlet and outlet water valve; 24. Air storage tank; 25. Runner; 26. Hand slide valve; 27. Air filter; 28. Pressure reducing valve; 29. Oil mist lubricator; 30. Touch screen; 31. Operation button. Detailed Description of the Preferred Embodiment

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] The accompanying drawings constituting a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0028] In the description of the present application, it should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] Please refer to Figure 1 - Figure 2 , the present utility model provides a technical solution: a gas-water double leak detection device, including a box body, a control system. A water tank, a gas distribution cabinet and a power distribution box are arranged inside the box body. The control system includes a PLC controller and a manual switch button; a gas source treatment component is arranged inside the gas distribution cabinet. A detection plate is arranged in the hollow part above the box body. A workpiece fixture, a cylinder, an external detection sensor, an air inlet and water inlet mechanism and an air outlet and water outlet mechanism are installed on the detection plate. The plugging head is installed on the air inlet and water inlet mechanism in a detachable manner, and an internal detection sensor is installed inside the air inlet and water inlet mechanism. The detection plate is connected to a connection adjustment component, and the connection adjustment component is installed on the box body through a guide post.

[0030] Adopting the above technical solution, the workpiece to be tested is installed on the detection plate, fixed by the workpiece fixture and then cooperated with the plugging head and installed inside the device. The device is started through the manual switch button, and then the machine is controlled through the control system; the touch screen sets the sealing element life monitoring and alarm functions and displays the plugging positions used by each sealing element; after selecting a good program, the device automatically detects the air tightness of the placed workpiece and whether there is liquid leakage.

[0031] Preferably, a dust-proof cover and an opening and closing plate are installed above the box body. The dust-proof cover and the opening and closing plate play a role in providing sealing protection for the device.

[0032] Preferably, feet are installed at the bottom of the box body and are connected with an inlet and outlet water pipe, and an inlet and outlet water valve is arranged on the inlet and outlet water pipe. Through the inlet and outlet water pipe and the inlet and outlet water valve, the detection water for the liquid leakage detection function can be provided and stored in the water tank.

[0033] Preferably, an air storage tank is installed at the non-hollow part at the top of the box body. The air storage tank provides gas for the gas source treatment component for sealing test and for the cylinder.

[0034] Preferably, a runner is installed on the connection adjustment component, and the runner is used to raise or lower the horizontal height of the detection plate. The runner is arranged on the connection adjustment component, so that the detection plate can move up and down through the runner, which is convenient for the user to install the workpiece on the detection plate.

[0035] Preferably, the gas source treatment component includes a hand slide valve, an air filter, a pressure reducing valve and an oil mist separator. The air filter, the pressure reducing valve and the oil mist separator are used to purify, filter and reduce the pressure of the gas from the air storage tank to meet the requirements for the gas in the air tightness test. The hand slide valve is convenient for manual control of the air inlet.

[0036] Preferably, a touch screen and operation buttons are provided outside the PLC controller. The automation, remote control, and parameter customization of the test process are realized through the PLC controller, touch screen, and operation buttons, improving the efficiency and flexibility of the test work; it can also enhance the stability and reliability of the system, ensuring the accuracy and reliability of the test results.

[0037] Preferably, a processing software air inspection spot-check program and a liquid inspection spot-check program are installed inside the PLC controller. With the programmatic setting of the air-liquid tightness test, the qualified rate of the test workpiece can be intelligently controlled through the PLC controller. Unqualified test workpieces will be prompted in the PLC controller and cannot enter other test and completion links.

[0038] Through simple operations by the staff, this embodiment can automatically complete the double-detection function of the internal air-liquid tightness of workpieces (such as shells and water channel covers), which is simple, convenient, and low-cost. It improves the detection efficiency of the tightness of the produced workpieces, avoids defective workpieces from flowing into the next production or sales process, and ensures the quality of the products produced. The working process of this equipment is as follows: When detecting the gas tightness and detecting a workpiece cavity, the air inlet and liquid inlet mechanism intakes air through the plug head and discharges air through another path. The air outlet and water outlet mechanism realizes the determination of the actual detection pressure through the internal detection sensor and the external detection sensor. When detecting the liquid tightness and detecting a workpiece cavity, the air inlet and liquid inlet mechanism intakes water through the plug head and discharges water through another path. The air outlet and water outlet mechanism realizes the determination of the actual liquid leakage condition through the internal detection sensor and the external detection sensor. The operation process is as follows: 1. The staff places the workpiece to be tested (such as water channel cover, cavity, shell, etc.) on the positioning fixture. 2. The staff holds the barcode reader to read the code. 3. The equipment is started through the manual switch button. 4. The product is fixed and sealed through the cylinder. 5. The equipment automatically conducts the detection: inflating, balancing, and detecting. 6. If the detection is OK, it is automatically marked. 7. The fixation and sealing of the product are released. 8. The staff takes out the workpiece to be tested.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gas and water double leak detection device, characterized in that: It includes a box body and a control system. Inside the box body, there is a water tank, a gas distribution cabinet and a power distribution box; the control system includes a PLC controller and a manual switch button; inside the gas distribution cabinet, there is a gas source treatment component; in the hollow part above the box body, there is a detection board; on the detection board, there are workpiece jigs, cylinders, external detection sensors, air inlet and water inlet mechanisms and air outlet and water outlet mechanisms; the plugging head is installed on the air inlet and water inlet mechanism in a detachable manner, and an internal detection sensor is installed inside the air inlet and water inlet mechanism; the detection board is connected to a connection adjustment component, and the connection adjustment component is installed on the box body through a guide post.

2. The air-water double leak detection device according to claim 1, characterized in that: Above the box body, there is a dust-proof cover and an opening and closing plate installed.

3. The air-water double leak detection device according to claim 1, characterized in that: At the bottom of the box body, there are feet installed and connected with inlet and outlet water pipes.

4. The air and water dual leak detection device according to claim 3, wherein: On the inlet and outlet water pipes, there are inlet and outlet water valves provided.

5. The air-water dual-detection leak detection device according to claim 1, characterized in that: On the non-hollowed part at the top of the box body, there is an air storage tank installed.

6. The air-water dual leak detection device according to claim 1, characterized in that: The connection adjustment component is installed with a runner; the runner is used to raise or lower the horizontal height of the detection board.

7. The air-water dual leak detection device according to claim 1, characterized in that: The gas source treatment component includes a hand slide valve, an air filter, a pressure reducing valve and an oil mist lubricator.

8. The air-water dual detection leak device according to claim 1, characterized in that: Outside the PLC controller, there is a touch screen and operation buttons provided.

9. The air-water dual leak detection device according to claim 8, characterized in that: Inside the PLC controller, there are installed a processing software gas detection inspection program and a liquid detection inspection program.

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