Air tightness detection device for realizing polymorphism

Abstract

The utility model relates to the technical field of air tightness detection, in particular to an air tightness detection device capable of realizing polymorphism, which comprises a frame, and the frame is provided with a positive pressure detection mechanism, a vacuum detection mechanism and a water tightness detection mechanism which are used for detecting the air tightness of a workpiece. The positive pressure detection mechanism comprises a positive pressure detection port formed in the frame, a gas tank arranged in the frame and communicated with the positive pressure detection port, and a compression pump arranged in the frame and used for introducing compressed gas into the gas tank; the beneficial effects are that positive pressure detection, vacuum detection and water tightness detection of a workpiece are realized, combination of multiple functions, namely polymorphism, is realized, and in the positive pressure detection and the vacuum detection, the pressure is adjusted and stabilized through a pressure adjusting valve and a pressure transmitter, so that the detection precision is improved, and the detection precision is improved. And positive pressure detection and vacuum detection can be conveniently carried out on the workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of airtightness detection, and particularly relates to an airtightness detection device for realizing polymorphism. Background Technique

[0002] In the field of modern industrial manufacturing, material inspection is an indispensable key link to ensure the quality of instrument products. With the progress of technology and the rapid development of the manufacturing industry, the airtightness requirements for various workpiece materials are becoming increasingly strict. For workpieces such as needles, tubes, and tanks, due to their specific application environments and functional requirements, airtightness detection has become one of the important criteria for evaluating their quality. Airtightness detection not only concerns the functionality and safety of products, but also directly affects the service life and market competitiveness of products.

[0003] At present, the main airtightness detection methods mainly include three main methods: positive pressure detection, vacuum detection, and water tightness detection. Positive pressure detection judges the airtightness by filling a certain pressure of gas into the workpiece to be tested and observing whether the gas leaks; on the contrary, vacuum detection forms a vacuum state by pumping out the gas inside the workpiece and observing whether the external gas seeps in; while water tightness detection uses water as a medium and judges its sealing performance by checking whether the workpiece leaks water. These methods have their own advantages and disadvantages and are suitable for different detection scenarios and requirements.

[0004] However, the existing airtightness detection devices generally have the problem of single function. Most detection devices can only provide one of the above three detection methods, lacking flexibility and versatility. This results in that in actual applications, enterprises need to be equipped with multiple detection devices according to different workpiece types and detection requirements, which not only increases the equipment cost but also reduces the detection efficiency.

[0005] Therefore, an airtightness detection device for realizing polymorphism is needed to overcome the occurrence of the above problems. Content of the Utility Model

[0006] In order to solve the above problems, the embodiment of the utility model provides an airtightness detection device for realizing polymorphism, achieving the purpose of solving the problems proposed in the background technique.

[0007] The embodiment of the utility model specifically adopts the following technical solutions to achieve the above purpose: an airtightness detection device for realizing polymorphism, including a frame, and a positive pressure detection mechanism, a vacuum detection mechanism, and a water tightness detection mechanism for detecting the airtightness of workpieces are arranged on the frame;

[0008] The positive pressure detection mechanism includes a positive pressure detection port arranged on the frame, an air tank arranged inside the frame and communicated with the positive pressure detection port, and a compression pump arranged inside the frame for introducing compressed gas into the air tank;

[0009] The vacuum detection mechanism includes a vacuum detection port provided on the frame, a vacuum tank provided inside the frame and communicating with the vacuum detection port, and a vacuum pump provided inside the frame for creating a negative pressure environment inside the vacuum tank.

[0010] A pressure regulating valve and a pressure transmitter are provided between the positive pressure detection port and the air tank, and between the vacuum detection port and the vacuum tank.

[0011] As a further improvement of the above technical solution:

[0012] The watertightness detection mechanism includes a watertightness detection port provided on the frame, a water storage bucket provided inside the frame and communicating with the watertightness detection port, and a micro water pump provided inside the frame for pumping the water contained in the water storage bucket into the watertightness detection port.

[0013] An on-off pressure gauge is provided on the frame. The on-off pressure gauge controls the start and stop of the compression pump according to the internal pressure of the air tank, and can control the start and stop of the vacuum pump according to the internal pressure of the vacuum tank.

[0014] A control panel is provided inside the frame. The control panel is communicatively connected to a PLC controller, and the PLC controller is communicatively connected to a relay.

[0015] The beneficial effects of the embodiments of the present utility model are as follows:

[0016] When performing positive pressure detection, connect the workpiece to the positive pressure detection port, and then start the compression pump. The compression pump can then press air into the air tank. Subsequently, the pressure transmitter is used to detect the pressing value of the compression pump on the air tank, that is, to monitor the internal pressure of the air tank. Finally, the pressure regulating valve is used to stabilize the pressure at the positive pressure detection port, that is, to stabilize the pressure inside the workpiece, so as to achieve positive pressure detection of the workpiece.

[0017] When performing vacuum detection, connect the workpiece to the vacuum detection port, and then start the vacuum pump. The vacuum pump extracts the inside of the vacuum tank into a negative pressure state or a vacuum state. The pressure transmitter is used to detect the extraction amount of the vacuum pump on the vacuum tank, so as to monitor the internal pressure of the vacuum tank. Finally, the pressure regulating valve is used to stabilize the pressure at the vacuum detection port, that is, to stabilize the pressure inside the workpiece, so as to achieve vacuum detection of the workpiece.

[0018] When performing watertightness detection, connect the workpiece to the watertightness detection port, and then start the micro water pump. The micro water pump pumps the water inside the water storage bucket into the watertightness detection port, and then into the workpiece. According to the detection requirements, it is judged whether there is water seepage in the workpiece material to be tested, or the leakage position is judged through the water seepage position, so as to achieve watertightness detection of the workpiece.

[0019] That is, the present application realizes the positive pressure detection, vacuum detection and water tightness detection of the workpiece, realizes the combination of multiple functions and polymorphism. In the present application, both the positive pressure detection and the vacuum detection adjust and stabilize the pressure through the pressure regulating valve and the pressure transmitter, which is convenient for the positive pressure detection and the vacuum detection of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the present utility model.

[0021] In the figure: 1. Frame; 2. Positive pressure detection mechanism; 21. Positive pressure detection port; 22. Air tank; 23. Compression pump; 3. Vacuum detection mechanism; 31. Vacuum detection port; 32. Vacuum tank; 33. Vacuum pump; 4. Water tightness detection mechanism; 41. Water tightness detection port; 42. Water storage bucket; 43. Micro water pump; 5. Pressure regulating valve; 6. Pressure transmitter; 7. Control panel; 8. PLC controller; 9. Relay; 10. Start-stop pressure gauge. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0023] See Figure 1 , an air tightness detection device realizing polymorphism disclosed in an embodiment of the present utility model includes a frame 1, and a positive pressure detection mechanism 2, a vacuum detection mechanism 3 and a water tightness detection mechanism 4 for detecting the air tightness of the workpiece are arranged on the frame 1;

[0024] The positive pressure detection mechanism 2 includes a positive pressure detection port 21 arranged on the frame 1, an air tank 22 arranged inside the frame 1 and communicated with the positive pressure detection port 21, and a compression pump 23 arranged inside the frame 1 for introducing compressed gas into the air tank 22;

[0025] The vacuum detection mechanism 3 includes a vacuum detection port 31 arranged on the frame 1, a vacuum tank 32 arranged inside the frame 1 and communicated with the vacuum detection port 31, and a vacuum pump 33 arranged inside the frame 1 for creating a negative pressure environment inside the vacuum tank 32;

[0026] A pressure regulating valve 5 and a pressure transmitter 6 are arranged between the positive pressure detection port 21 and the air tank 22, and between the vacuum detection port 31 and the vacuum tank 32;

[0027] When performing positive pressure detection, connect the workpiece to the positive pressure detection port 21, then start the compression pump 23. The compression pump 23 can then press air into the inside of the air tank 22. Subsequently, use the pressure transmitter 6 to detect the pressing value of the compression pump 23 on the air tank 22, that is, monitor the internal pressure of the air tank 22. Finally, use the pressure regulating valve 5 to stabilize the pressure of the positive pressure detection port 21, that is, stabilize the internal pressure of the workpiece, so as to achieve positive pressure detection of the workpiece;

[0028] When performing vacuum detection, connect the workpiece to the vacuum detection port 31, then start the vacuum pump 33. Use the vacuum pump 33 to extract the inside of the vacuum tank 32 into a negative pressure state or a vacuum state. Use the pressure transmitter 6 to detect the extraction amount of the vacuum pump 33 on the vacuum tank 32, so as to monitor the internal pressure of the vacuum tank 32. Finally, use the pressure regulating valve 5 to stabilize the pressure of the vacuum detection port 31, that is, stabilize the internal pressure of the workpiece, so as to achieve vacuum detection of the workpiece;

[0029] The watertightness detection mechanism 4 includes a watertightness detection port 41 provided on the frame 1, a water storage bucket 42 provided inside the frame 1 and communicated with the watertightness detection port 41, and a micro water pump 43 provided inside the frame 1 for pumping the water filled in the water storage bucket 42 into the watertightness detection port 41;

[0030] When performing watertightness detection, connect the workpiece to the watertightness detection port 41, then start the micro water pump 43. The micro water pump 43 pumps the water inside the water storage bucket 42 into the watertightness detection port 41, and then into the workpiece. According to the detection requirements, judge whether there is water seepage in the material of the workpiece to be detected, or judge the air leakage position through the water seepage position, so as to achieve watertightness detection of the workpiece;

[0031] That is, this application realizes positive pressure detection, vacuum detection and watertightness detection of the workpiece, realizes the combination of multiple functions and polymorphism. In this application, both positive pressure detection and vacuum detection use the pressure regulating valve 5 and the pressure transmitter 6 to adjust and stabilize the pressure, which is convenient for positive pressure detection and vacuum detection of the workpiece.

[0032] As a further description of this application:

[0033] An on-off pressure gauge 10 is provided on the frame 1. The on-off pressure gauge 10 controls the start and stop of the compression pump 23 according to the internal pressure of the air tank 22, and can control the start and stop of the vacuum pump 33 according to the internal pressure of the vacuum tank 32; By setting the start and stop range of the on-off pressure gauge 10, it can be realized that the pump automatically shuts down after reaching a certain pressure value, and the pump automatically starts after dropping to a certain pressure value.

[0034] As a further description of this application:

[0035] Inside the frame 1, a control panel 7 is provided. The control panel 7 is communicatively connected to a PLC controller 8, and the PLC controller 8 is communicatively connected to a relay 9. The pressure range of the start-stop pressure gauge 10 is adjusted through the control panel 7. The relay 9 is connected to the compression pump 23 and the vacuum pump 33. The start and stop of the compression pump 23 and the vacuum pump 33 are controlled by controlling the relay 9 through the PLC controller 8.

[0036] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0037] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0038] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article, or device / equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in these processes, articles, or devices / equipment.

[0039] So far, the technical solution of the present utility model has been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. An airtightness detection device for implementing polymorphism, characterized in that, It includes a frame (1), and a positive pressure detection mechanism (2), a vacuum detection mechanism (3) and a water tightness detection mechanism (4) for detecting the air tightness of the workpiece are arranged on the frame (1). The positive pressure detection mechanism (2) includes a positive pressure detection port (21) arranged on the frame (1), an air tank (22) arranged inside the frame (1) and communicated with the positive pressure detection port (21), and a compression pump (23) arranged inside the frame (1) for introducing compressed gas into the air tank (22). The vacuum detection mechanism (3) includes a vacuum detection port (31) arranged on the frame (1), a vacuum tank (32) arranged inside the frame (1) and communicated with the vacuum detection port (31), and a vacuum pump (33) arranged inside the frame (1) for creating a negative pressure environment inside the vacuum tank (32). A pressure regulating valve (5) and a pressure transmitter (6) are arranged between the positive pressure detection port (21) and the air tank (22), and between the vacuum detection port (31) and the vacuum tank (32).

2. The airtightness detection device for implementing polymorphism according to claim 1, characterized in that, The water tightness detection mechanism (4) includes a water tightness detection port (41) arranged on the frame (1), a water storage bucket (42) arranged inside the frame (1) and communicated with the water tightness detection port (41), and a micro water pump (43) arranged inside the frame (1) for pumping the water contained in the water storage bucket (42) into the water tightness detection port (41).

3. The airtightness detection device for implementing polymorphism according to claim 1, characterized in that, A start-stop pressure gauge (10) is arranged on the frame (1), and the start-stop pressure gauge (10) controls the start and stop of the compression pump (23) according to the internal pressure of the air tank (22) and can control the start and stop of the vacuum pump (33) according to the internal pressure of the vacuum tank (32).

4. The airtightness detection device for implementing polymorphism according to claim 1, characterized in that, A control panel (7) is arranged inside the frame (1), the control panel (7) is communicatively connected to a PLC controller (8), and the PLC controller (8) is communicatively connected to a relay (9).

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