Air tightness detection device for valve processing

Abstract

The utility model relates to the technical field of air tightness detection devices, and particularly discloses an air tightness detection device for valve processing, which comprises a bottom plate, a detection mechanism for detecting a valve is arranged on the upper surface of the bottom plate, and an air-drying mechanism for air-drying the valve is arranged on one side of the upper surface of the bottom plate. The valves are placed in the placing grooves of the placing plates one by one, the output ends of the electric telescopic rods drive the second clamping plates to move, the first clamping plates and the second clamping plates are used for clamping the two ends of the valves, the valves are sealed through the sealing rubber strips, and the telescopic ends of the electric push rods drive the valves to stretch into water in the detection box. The air pump is started for inflation, whether bubbles exist near the valves or not is observed through the transparent glass, a plurality of valves can be detected at a time, and the detection efficiency of the valves is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of airtightness testing devices, specifically an airtightness testing device for valve processing. Background Technology

[0002] Air tightness testing during valve manufacturing is a core step in ensuring valve quality. It uses specialized equipment to check for gas leaks at the valve's sealing points under simulated operating pressure conditions. Testing methods include the pressure drop method, which involves pressurizing the valve and monitoring the pressure drop; and the bubble method, which involves immersing the valve in liquid and observing for bubbles. Accurate air tightness testing ensures stable valve operation in various scenarios, preventing safety accidents and equipment failures caused by leaks, and significantly improving the reliability and safety of valve use.

[0003] Patent publication number CN222087258U discloses a valve testing device for pipeline valve processing, including a testing box filled with clean water on the inside. An air pump and an air pressure monitor are respectively installed on both sides of the testing box. Connecting pipes are fixedly connected to the ends of the air pump and the air pressure monitor, and the valve body to be tested is screwed between the two sets of connecting pipes.

[0004] To address the issue that after prolonged use, gaps may widen due to water pressure, leading to poor airtightness, and the limited effectiveness of water as an airtightness test, existing technologies use gas injection as a detection method. This allows for accurate airtightness testing by observing whether bubbles emerge. Furthermore, the inclusion of an air pump and pressure monitor enables airtightness testing of the valve body under varying internal pressures through continuous pressurization, ensuring accurate results. However, this approach suffers from limitations such as the inability to test multiple valves simultaneously and the inability to quickly dry valves after testing, resulting in low testing efficiency and increased susceptibility to rust and corrosion. Therefore, we propose an airtightness testing device for valve processing. Utility Model Content

[0005] The purpose of this invention is to provide an airtightness testing device for valve processing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an airtightness testing device for valve processing, comprising: a base plate, wherein a testing mechanism for testing valves is provided on the upper surface of the base plate, and a drying mechanism for air-drying valves is provided on one side of the upper surface of the base plate;

[0007] The testing mechanism includes a testing box, transparent glass, a support frame, an air pump, a hose, an electric push rod, a rotating device, a placement plate, a first clamping plate, a sealing strip, a second clamping plate, a connecting pipe, and an electric telescopic rod. The lower surface of the testing box is fixedly connected to the upper surface of the base plate. The transparent glass is located on the side wall of the testing box. The bottom end of the support frame is fixedly connected to the upper surface of the base plate. The surface of the support frame is fixedly connected to the surface of the air pump. The air pump's air delivery end is fixedly connected to one end of the hose.

[0008] One end of the electric push rod is fixedly connected to the surface of the support frame. The rotating device is located at the telescopic end of the electric push rod and is located on one side of the placement plate. The bottom end of the first clamping plate is fixedly connected to the surface of the placement plate. The surface of the first clamping plate is provided with a snap-fit ​​hole, and the sealing strip is located in the snap-fit ​​hole of the first clamping plate.

[0009] The bottom end of the second clamping plate is slidably connected to the surface of the placement plate. The surface of the second clamping plate is provided with a snap-fit ​​hole. The sealing strip is placed in the snap-fit ​​hole of the second clamping plate. The exhaust end of the connecting pipe is fixedly connected to the snap-fit ​​hole on the surface of the first clamping plate. The air inlet end of the connecting pipe is fixedly connected to the other end of the hose. The telescopic end of the electric telescopic rod is fixedly connected to the surface of the second clamping plate. One end of the electric telescopic rod is fixedly connected to the surface of the first clamping plate.

[0010] The rotating device includes a snap-fit ​​block, a snap-fit ​​groove, a column, and a rubber strip. The upper surface of the snap-fit ​​block is fixedly connected to the telescopic end of the electric push rod. The snap-fit ​​groove is formed on the inner surface of the snap-fit ​​block. The surface of the column is fixedly connected to the inner surface of the snap-fit ​​block. The surface of the rubber strip is fixedly connected to the surface of the column. The surface of the rubber strip is movably connected to the surface of the snap-fit ​​groove. One end of the column is fixedly connected to one side of the placement plate.

[0011] The air-drying mechanism includes a fixed frame, heating wire, support rod, and blower, with the lower end of the fixed frame fixedly connected to the upper surface of the base plate.

[0012] The surface of the heating wire is fixedly connected to the surface of the fixing frame, the bottom end of the support rod is fixedly connected to the upper surface of the base plate, and the top end of the support rod is fixedly connected to the surface of the blower.

[0013] This utility model has at least the following beneficial effects:

[0014] 1. By placing the valves one by one into the placement slots of the placement plate, the output end of the electric telescopic rod drives the second clamping plate to move, and the first and second clamping plates clamp both ends of the valve. The valve is sealed with a sealing strip, and the extension end of the electric push rod drives the valve into the water of the test box. The air pump is started to inflate the valve, and the presence of air bubbles can be observed through the transparent glass. Multiple valves can be tested at the same time, improving the valve testing efficiency.

[0015] 2. After the valve is tested, the position of the rubber strip is changed by rotating the column, so that the valve is parallel to the water surface and can quickly control the water. The valve is heated by an electric heating wire and the warm air is blown onto the valve by a blower to further accelerate the drying speed of the valve and effectively prevent the valve from rusting after testing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the testing mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the testing mechanism of this utility model from another perspective;

[0019] Figure 4 This is a schematic diagram of the rotating device structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the air-drying mechanism of this utility model.

[0021] In the diagram: 1. Base plate; 2. Detection mechanism; 21. Detection box; 22. Transparent glass; 23. Support frame; 24. Air pump; 25. Hose; 26. Electric push rod; 27. Rotating device; 28. Placement plate; 29. ​​First clamping plate; 201. Sealing strip; 202. Second clamping plate; 203. Connecting pipe; 204. Electric telescopic rod; 271. Snap-fit ​​block; 272. Snap-fit ​​groove; 273. Column; 274. Rubber strip; 3. Drying mechanism; 31. Fixing frame; 32. Heating wire; 33. Support rod; 34. Blower. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 An airtightness testing device for valve processing includes a base plate 1. A testing mechanism 2 for testing valves is provided on the upper surface of the base plate 1. A drying mechanism 3 for air-drying valves is provided on one side of the upper surface of the base plate 1. The testing mechanism 2 includes a testing box 21, a transparent glass 22, a support frame 23, an air pump 24, a hose 25, an electric push rod 26, a rotating device 27, a placement plate 28, a first clamping plate 29, a sealing strip 201, a second clamping plate 202, a connecting pipe 203, and an electric telescopic rod 204. The lower surface of the testing box 21 is fixedly connected to the upper surface of the base plate 1. The transparent glass 22 is located on the side wall of the testing box 21. The bottom end of the support frame 23 is fixedly connected to the upper surface of the base plate 1, and the surface of the support frame 23 is fixedly connected to the surface of the air pump 24. The air supply end of the air pump 24 is fixedly connected to one end of the hose 25. By using the air pump 24 to inflate the valve, the airtightness can be easily observed through the transparent glass 22.

[0024] Please see Figures 1-5 One end of the electric push rod 26 is fixedly connected to the surface of the support frame 23. The rotating device 27 is located at the telescopic end of the electric push rod 26 and is located on one side of the placement plate 28. The bottom end of the first clamping plate 29 is fixedly connected to the surface of the placement plate 28. The surface of the first clamping plate 29 is provided with snap-fit ​​holes. The sealing strip 201 is located in the snap-fit ​​holes of the first clamping plate 29. The sealing strip 201 can enhance the sealing performance of both ends of the valve after it is fixed.

[0025] Please see Figures 1-5 The bottom end of the second clamping plate 202 is slidably connected to the surface of the placement plate 28. The surface of the second clamping plate 202 is provided with snap-fit ​​holes. The sealing strip 201 is placed in the snap-fit ​​holes of the second clamping plate 202. The exhaust end of the connecting pipe 203 is fixedly connected to the snap-fit ​​holes on the surface of the first clamping plate 29. The air inlet end of the connecting pipe 203 is fixedly connected to the other end of the hose 25. The telescopic end of the electric telescopic rod 204 is fixedly connected to the surface of the second clamping plate 202. One end of the electric telescopic rod 204 is fixedly connected to the surface of the first clamping plate 29. By adjusting the telescopic end of the electric telescopic rod 204, the position between the first clamping plate 29 and the second clamping plate 202 is changed, which facilitates the clamping of multiple valves.

[0026] Please see Figures 1-5The rotating device 27 includes a snap-fit ​​block 271, a snap-fit ​​groove 272, a column 273, and a rubber strip 274. The upper surface of the snap-fit ​​block 271 is fixedly connected to the telescopic end of the electric push rod 26. The snap-fit ​​groove 272 is formed on the inner surface of the snap-fit ​​block 271. The surface of the column 273 is fixedly connected to the inner surface of the snap-fit ​​block 271. The surface of the rubber strip 274 is fixedly connected to the surface of the column 273. The surface of the rubber strip 274 is movably connected to the surface of the snap-fit ​​groove 272. One end of the column 273 is fixedly connected to one side of the placement plate 28. By rotating the column 273, the snap-fit ​​position of the rubber strip 274 changes, so that the valves are parallel to each other and perpendicular to the water surface, which facilitates rapid water control.

[0027] Please see Figures 1-5 The air drying mechanism 3 includes a fixed frame 31, an electric heating wire 32, a support rod 33, and a blower 34. The lower end of the fixed frame 31 is fixedly connected to the upper surface of the base plate 1, and the electric heating wire 32 can be fixed through the fixed frame 31.

[0028] Please see Figures 1-5 The surface of the heating wire 32 is fixedly connected to the surface of the fixing frame 31, the bottom end of the support rod 33 is fixedly connected to the upper surface of the base plate 1, and the top end of the support rod 33 is fixedly connected to the surface of the blower 34. By using the blower 34 to blow air onto the heating wire 32, warm air can be generated to dry the valve, effectively preventing the valve from rusting.

[0029] The working principle of this valve processing airtightness testing device will be explained in detail below:

[0030] First, water is injected into the test box 21. The valve is placed on the placement plate 28. The two ends of the valve are engaged in the holes of the second clamping plate 202 and the first clamping plate 29 by adjusting the extension end of the electric telescopic rod 204. The valve is sealed with the sealing strip 201. The valve is moved down into the water by the extension end of the electric push rod 26. The air pump 24 is used to inflate the valve. The valve is observed through the transparent glass 22 to check for air bubbles and ensure good air tightness. Multiple valves can be tested at once, improving testing efficiency. After testing, the valve is brought out of the water surface by the extension end of the electric push rod 26. The column 273 is rotated to make the valves parallel and perpendicular to the water surface, effectively accelerating the water control speed of the valves. Then, the heating wire 32 is activated for heating, and the blower 34 blows air. The airflow passes through the heating wire and becomes warm air, which is blown onto the valve to further accelerate the drying speed of the valve and prevent the valve from rusting.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A valve processing airtightness testing device, comprising: The base plate (1) is characterized in that: a detection mechanism (2) for detecting valves is provided on the upper surface of the base plate (1), and a drying mechanism (3) for drying valves is provided on one side of the upper surface of the base plate (1). The testing mechanism (2) includes a testing box (21), a transparent glass (22), a support frame (23), an air pump (24), a hose (25), an electric push rod (26), a rotating device (27), a placement plate (28), a first clamping plate (29), a sealing strip (201), a second clamping plate (202), a connecting pipe (203), and an electric telescopic rod (204). The lower surface of the testing box (21) is fixedly connected to the upper surface of the base plate (1). The transparent glass (22) is located on the side wall of the testing box (21). The bottom end of the support frame (23) is fixedly connected to the upper surface of the base plate (1). The surface of the support frame (23) is fixedly connected to the surface of the air pump (24). The air delivery end of the air pump (24) is fixedly connected to one end of the hose (25).

2. The airtightness testing device for valve processing according to claim 1, characterized in that: One end of the electric push rod (26) is fixedly connected to the surface of the support frame (23). The rotating device (27) is located at the telescopic end of the electric push rod (26). The rotating device (27) is located on one side of the placement plate (28). The bottom end of the first clamping plate (29) is fixedly connected to the surface of the placement plate (28). The surface of the first clamping plate (29) is provided with a snap-fit ​​hole. The sealing strip (201) is located in the snap-fit ​​hole of the first clamping plate (29).

3. The airtightness testing device for valve processing according to claim 2, characterized in that: The bottom end of the second clamping plate (202) is slidably connected to the surface of the placement plate (28). The surface of the second clamping plate (202) is provided with a snap-fit ​​hole. The sealing strip (201) is disposed in the snap-fit ​​hole of the second clamping plate (202). The exhaust end of the connecting pipe (203) is fixedly connected to the snap-fit ​​hole on the surface of the first clamping plate (29). The air inlet end of the connecting pipe (203) is fixedly connected to the other end of the hose (25). The telescopic end of the electric telescopic rod (204) is fixedly connected to the surface of the second clamping plate (202). One end of the electric telescopic rod (204) is fixedly connected to the surface of the first clamping plate (29).

4. The airtightness testing device for valve processing according to claim 3, characterized in that: The rotating device (27) includes a snap-fit ​​block (271), a snap-fit ​​groove (272), a column (273), and a rubber strip (274). The upper surface of the snap-fit ​​block (271) is fixedly connected to the telescopic end of the electric push rod (26). The snap-fit ​​groove (272) is opened on the inner surface of the snap-fit ​​block (271). The surface of the column (273) is fixedly connected to the inner surface of the snap-fit ​​block (271). The surface of the rubber strip (274) is fixedly connected to the surface of the column (273). The surface of the rubber strip (274) is movably connected to the surface of the snap-fit ​​groove (272). One end of the column (273) is fixedly connected to one side of the placement plate (28).

5. The airtightness testing device for valve processing according to claim 1, characterized in that: The air-drying mechanism (3) includes a fixed frame (31), an electric heating wire (32), a support rod (33), and a blower (34). The lower end of the fixed frame (31) is fixedly connected to the upper surface of the base plate (1).

6. The airtightness testing device for valve processing according to claim 5, characterized in that: The surface of the heating wire (32) is fixedly connected to the surface of the fixing frame (31), the bottom end of the support rod (33) is fixedly connected to the upper surface of the base plate (1), and the top end of the support rod (33) is fixedly connected to the surface of the blower (34).

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