Five-station steel cylinder valve air tightness water detection machine

Abstract

The invention relates to the field of steel cylinder valve airtightness, in particular to a five-station steel cylinder valve airtightness water inspection machine which comprises five water inspection bins, a fixing assembly and a stamping assembly, the fixing assembly and the stamping assembly are located in the water inspection bins, the fixing assembly comprises a fixing plate and two clamping plates, the two clamping plates are oppositely arranged, one end of each clamping plate extends into the fixing plate, and the other end of each clamping plate extends into the stamping assembly. A steel cylinder valve is pressed to the position between the two clamping plates from the position above the two clamping plates, the steel cylinder valve is tightly clamped under clamping of the curved surfaces of the two clamping plates, the two clamping plates freely slide on the fixing plate, the steel cylinder valve clamping device can adapt to steel cylinder valves of different sizes, sealing assemblies on the two sides of the steel cylinder valve can be moved, and the sealing assemblies can be conveniently clamped. The third sealing plug, the second sealing plug and the first sealing plug make contact with the two sides of the steel cylinder valve in sequence, the two sides of the steel cylinder valve are sealed through the sealing assemblies, the air pressure pipe is used for stamping the interior of the steel cylinder valve, finally, the steel cylinder valve sinks into the water detection bin to be detected, and the sealing assemblies can adapt to steel cylinder valves of different sizes.

Description

Technical Field

[0001] The invention relates to an airtight water inspection device, in particular to a 5-station steel cylinder valve airtight water inspection device, belonging to the field of steel cylinder valve airtightness. Background Art

[0002] The cylinder valve is a device installed on the cylinder to control the inflow and outflow of gas. By opening or closing the outflow of gas in the cylinder, it can achieve precise control of the gas supply and has the effect of controlling the gas circulation. At the same time, the cylinder valve has a flow regulation function, which can adjust the gas outflow speed and flow rate as needed to achieve the purpose of regulating the flow rate.

[0003] With the development of modern industry, the quality and reliability requirements of cylinder valve products are getting higher and higher. Good air tightness is required to ensure its normal operation and safety performance. As consumers pay more attention to product quality, companies also pay more attention to product air tightness testing to enhance product competitiveness and market reputation. The existing cylinder valve air tightness testing methods include pressure drop method, bubble method, etc. The pressure drop method is to fill a certain pressure of gas into a sealed container, and after a period of time, observe the pressure drop to determine whether there is a leak. The bubble method is to fill a certain pressure of gas into a sealed container, and then put the tested piece into the liquid to see if there are bubbles.

[0004] Although both the pressure drop method and the bubble method can perform corresponding tests on the air tightness of cylinder valves, the pressure drop method takes a long time to test, which is not convenient for assembly line production. The existing water inspection machines that use the bubble method for testing only perform one-to-one tests on cylinder valves, and the existing water inspection machines can only detect cylinder valves of matching sizes. When the size of the produced cylinder valves changes, the water inspection machines cannot perform corresponding fixation and testing, which greatly increases production costs.

[0005] Therefore, it is urgent to improve the cylinder valve air tightness water testing machine to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide a 5-station cylinder valve air-tightness water inspection machine, which can press the cylinder valve from above two clamping plates to between the two clamping plates, so that the cylinder valve can be tightly clamped between the two clamping plates under the clamping of the two clamping plate curved surfaces, and the two clamping plates can slide freely on the fixed plate so that the two clamping plates can adapt to cylinder valves of different sizes, and then move the sealing components on both sides of the cylinder valve so that the sealing plug three and the sealing plug two and the sealing plug one contact with the two sides of the cylinder valve in turn, so that the sealing component seals the two sides of the cylinder valve, and then use the air pressure tube to punch into the interior of the cylinder valve, and finally sink the cylinder valve into the water inspection chamber for water inspection, and the sealing component can adapt to cylinder valves of different sizes.

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention include: A 5-station cylinder valve air tightness water inspection machine, comprising 5 water inspection chambers, a fixing assembly located inside the water inspection chambers, and a stamping assembly, wherein the fixing assembly comprises a fixing plate and two clamping plates, the two clamping plates are arranged opposite to each other, and one end of the clamping plate extends into the inside of the fixing plate, the clamping plate is slidably connected to the fixing plate, and the opposite side of the two clamping plates is a curved surface, so as to facilitate clamping of the cylinder valve; The stamping assembly includes a sealing assembly and an air pressure tube, the air pressure tube runs through the sealing assembly, the sealing assembly includes a sealing plug 1, a sealing plug 2 and a sealing plug 3, the sealing plug 1 has a truncated cone shape, and one end of the sealing plug 1 extends to the interior of the sealing plug 2, the sealing plug 1 is slidably connected to the sealing plug 2, one end of the sealing plug 2 extends to the interior of the sealing plug 3, and the sealing plug 2 is slidably connected to the sealing plug 3, and the sealing plug 1, the sealing plug 2 and the sealing plug 3 are conveniently sealed at both ends of cylinder valves of different sizes through the sealing plug 1, the sealing plug 2 and the sealing plug 3.

[0008] Preferably, a plurality of sliding grooves are provided on opposite sides of the two clamping plates, a connecting rod 1 is fixedly connected inside the sliding groove, a connecting rod 2 is slidably connected to the opposite side of the connecting rod 1, and a tension spring is provided between the two opposite connecting rods 1, and both ends of the connecting rod 2 are slidably connected to the sliding grooves.

[0009] Preferably, a plurality of fixing rods are fixedly connected inside the fixing plate, the plurality of fixing rods all pass through the two clamping plates, and the two clamping plates are slidably connected to the plurality of fixing rods.

[0010] Preferably, a first resistance spring is provided between the first sealing plug and the second sealing plug, and a second resistance spring is provided between the second sealing plug and the third sealing plug.

[0011] Preferably, an L-shaped bracket is fixedly connected to one side of the sealing plug three, a bidirectional threaded rod is commonly threadedly connected between the two L-shaped brackets, and the two L-shaped brackets are fixedly connected to the air pressure pipe.

[0012] Preferably, a micro waterproof motor is fixedly connected to one side of the fixing plate, and an output end of the micro waterproof motor is connected to the bidirectional threaded rod.

[0013] Preferably, one end of one of the air pressure tubes is connected to a pressure gauge, the other air pressure tube is connected to a air pressure ring, and a control valve is connected at the connection between the air pressure tube and the air pressure ring.

[0014] Preferably, a movable plate is fixedly connected to one side of the fixed plate, and a plurality of the movable plates are commonly connected to a circular disk, and the circular disk is located directly above a plurality of water inspection chambers.

[0015] Preferably, an electric telescopic rod is provided between the plurality of water inspection chambers, and an output end of the electric telescopic rod is fixedly connected to the lower bottom surface of the disc.

[0016] Preferably, an air pressure pump is fixedly connected to the upper surface of the disc, and an output end of the air pressure pump is communicated with the air pressure ring.

[0017] The present invention has at least the following beneficial effects: The cylinder valve can be pressed from above the two clamping plates to between the two clamping plates. The cylinder valve can be tightly clamped between the two clamping plates under the clamping of the two clamping plate curved surfaces. The two clamping plates are used to slide freely on the fixed plate so that the two clamping plates can adapt to cylinder valves of different sizes. Then the sealing components on both sides of the cylinder valve are moved so that the sealing plug three, the sealing plug two and the sealing plug one contact with the two sides of the cylinder valve in turn, so that the sealing component seals the two sides of the cylinder valve. Then the air pressure tube is used to punch the inside of the cylinder valve. Finally, the cylinder valve is sunk into the water inspection bin for water inspection. The sealing component can adapt to cylinder valves of different sizes.

[0018] Through multiple fixing rods, the two clamping plates can slide on the upper surface of the fixing plate while remaining stable. At the same time, the movement of the two clamping plates will drive the connecting rod 1 to move synchronously. Under the action of multiple tension springs, the two connecting rods 1 always maintain a force of moving towards each other, making it easier for the two clamping plates to clamp the cylinder valve.

[0019] One end of one of the air pressure tubes is connected to a pressure gauge, through which the gas pressure inside the air pressure tube can be visually observed, so that the air pressure inside the cylinder valve can be understood in real time, and the air tightness of the cylinder valve under different pressures can be observed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 An isometric schematic diagram provided for the present invention; Figure 2 The present invention provides Figure 1 A is a schematic diagram of the structure that is enlarged separately; Figure 3 A schematic top view provided by the present invention; Figure 4 A schematic diagram of the enlarged structure of some components provided by the present invention; Figure 5A partial cross-sectional schematic diagram provided by the present invention; Figure 6 The present invention provides Figure 5 The structural diagram at B is enlarged separately; Figure 7 This is a schematic diagram of a separate enlarged structure of a fixing component provided by the present invention; Figure 8 The present invention provides Figure 7 Schematic cross-section; Fig. 9 This is a schematic diagram of the enlarged structure of the stamping assembly provided by the present invention.

[0021] In the figure, 101, water inspection chamber; 102, fixing assembly; 103, stamping assembly; 104, fixing plate; 105, clamping plate; 106, sealing assembly; 107, air pressure tube; 108, sealing plug one; 109, sealing plug two; 110, sealing plug three; 201, sliding groove; 202, connecting rod one; 203, connecting rod two; 204, tension spring; 301, fixing rod; 401, resistance spring one; 402, resistance spring two; 501, L-shaped bracket; 502, two-way threaded rod; 601, micro waterproof motor; 701, pressure gauge; 702, air pressure ring; 703, control valve; 801, moving plate; 802, disc; 901, electric telescopic rod; 1001, air compressor. DETAILED DESCRIPTION

[0022] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] like Figure 1-Figure 9As shown, the 5-station cylinder valve air tightness water inspection machine provided in this embodiment includes 5 water inspection chambers 101, a fixing assembly 102 and a stamping assembly 103 located inside the water inspection chamber 101. The 5 water inspection chambers 101 are convenient for simultaneously inspecting 5 cylinder valves. The fixing assembly 102 is used to fix and clamp the cylinder valves. The stamping assembly 103 stamps the inside of the cylinder valves to facilitate subsequent water inspection of the air tightness of the cylinder valves. The fixing assembly 102 includes a fixing plate 104 and two clamping plates 105. The two clamping plates 105 are mutually The two clamping plates 105 are arranged in pairs, and one end of the clamping plate 105 extends into the interior of the fixed plate 104. The clamping plate 105 is slidably connected to the fixed plate 104. The opposite side of the two clamping plates 105 is a curved surface, which is convenient for clamping the cylinder valve. The opposite side of the two clamping plates 105 is a curved surface, which is convenient for adapting to cylinder valves of different sizes, so that cylinder valves of different sizes can be clamped by the two clamping plates 105. The two clamping plates 105 slide freely on the fixed plate 104, and cylinder valves of different sizes are placed between the two clamping plates 105. Further, such as Figure 1-Figure 9 As shown, a plurality of sliding grooves 201 are provided on opposite sides of the two clamping plates 105, and a connecting rod 1 202 is fixedly connected inside the sliding groove 201, and a connecting rod 203 is slidably connected to the opposite side of the connecting rod 1 202, and the two connecting rods 1 202 can be simultaneously retracted inside the connecting rod 203, so that the distance between the two clamping plates 105 is shortened, and a tension spring 204 is provided between the two opposite connecting rods 1 202, and under the tension of the tension spring 204, the two clamping plates 105 always maintain relative forces, which is convenient for clamping the cylinder valve, and the two ends of the connecting rod 203 are slidably connected to the sliding groove 201, so that when the two clamping plates 105 move relative to each other, the two ends of the connecting rod 203 can move into the sliding groove 201, so that the distance between the two clamping plates 105 is shortened; Further, if Figure 1-Figure 9 As shown, the fixing plate 104 is internally fixedly connected with a plurality of fixing rods 301, and the plurality of fixing rods 301 all penetrate the two clamping plates 105, and the two clamping plates 105 are slidably connected with the plurality of fixing rods 301. The plurality of fixing rods 301 ensure that the two clamping plates 105 always remain stable when sliding on the fixing plate 104, so as to facilitate the clamping of the cylinder valve by the clamping plate 105; Among them, Figure 1-Figure 9As shown, the stamping component 103 includes a sealing component 106 and an air pressure tube 107. The stamping component 103 includes two groups of sealing components 106. The sealing components 106 are used to seal both sides of the cylinder valve. The air pressure tube 107 runs through the sealing component 106. Then, under the action of the air pressure tube 107, the high-pressure gas is rushed into the cylinder valve, so as to facilitate the water test of the air tightness of the cylinder valve. The sealing component 106 includes a sealing plug 108, a sealing plug 2 109 and a sealing plug 3 110. The shape of the sealing plug 108 is a truncated cone. The diameter of one end of the sealing plug 108 is smaller than the diameter of the other end. When encountering a smaller cylinder valve, the two sides of the cylinder valve can be sealed under the action of the sealing plug 108 to prevent gas leakage from both sides of the cylinder valve, so as to facilitate the water test of the air tightness of the cylinder valve. One end of the sealing plug 108 extends to the inside of the sealing plug 2 109. The sealing plug 109 is a sealing plug 110. 08 is slidably connected with the sealing plug 2 109, one end of the sealing plug 2 109 extends into the inside of the sealing plug 3 110, and the sealing plug 2 109 is slidably connected with the sealing plug 3 110. The sealing plug 1 108, the sealing plug 2 109 and the sealing plug 3 110 are convenient for sealing the two ends of cylinder valves of different sizes. The outer sides of the sealing plug 3 110 and the sealing plug 2 109 are both arc-shaped, which is convenient for sealing the side of the cylinder valve. The sealing plug 3 110 is pushed to make one end of the sealing plug 2 109 slide inside the sealing plug 3 110, so that the sealing plug 3 110 pushes the sealing plug 2 109, so that one end of the sealing plug 1 108 slides inside the sealing plug 2 109, so that the sealing plug 2 109 pushes the sealing plug 1 108 to move, so that the sealing plug 1 108, the sealing plug 2 109 and the sealing plug 3 110 successively conflict with the side of the cylinder valve, which is convenient for adapting to cylinder valves of different sizes; Further, such as Figure 1-Figure 9 As shown, a resistance spring 1 401 is provided between the sealing plug 108 and the sealing plug 2 109, and the resistance spring 1 401 is used to tightly connect the sealing plug 108 and the sealing plug 2 109 together, and at the same time, when the sealing plug 2 109 and the sealing plug 1 108 conflict with each other, the resistance spring 1 401 can play a buffering role, and a resistance spring 2 402 is provided between the sealing plug 2 109 and the sealing plug 3 110, and the resistance spring 2 402 is used to tightly connect the sealing plug 2 and the sealing plug 3 110 together, and at the same time, when the sealing plug 3 110 and the sealing plug 2 109 conflict with each other, the resistance spring 2 402 can play a buffering role; Going further, Figure 1-Figure 9As shown, one side of the sealing plug 3 110 is fixedly connected with an L-shaped bracket 501, and the sealing plug 3 110 is driven to move by the L-shaped bracket 501. A bidirectional threaded rod 502 is commonly threadedly connected between the two L-shaped brackets 501. By rotating the bidirectional threaded rod 502, the two L-shaped brackets 501 can move toward each other and can also move in the opposite direction. The two L-shaped brackets 501 are fixedly connected to the air pressure tube 107, and the movement of the L-shaped bracket 501 will drive the air pressure tube 107 to move synchronously. Furthermore, if Figure 1-Figure 9 As shown, a micro waterproof motor 601 is fixedly connected to one side of the fixing plate 104, and the micro waterproof motor 601 can work effectively underwater. The output end of the micro waterproof motor 601 is connected to the bidirectional threaded rod 502, and the micro waterproof motor 601 is used to drive the bidirectional threaded rod 502 to rotate; Among them, Figure 1-Figure 9 As shown, a movable plate 801 is fixedly connected to one side of the fixed plate 104, and a plurality of the movable plates 801 are commonly connected to a disc 802, and the disc 802 is located directly above the plurality of water inspection chambers 101. By moving the disc 802 upward or downward, the plurality of movable plates 801 are driven to move up and down, so that the plurality of fixed plates 104 drive the fixed assembly 102 and the cylinder valve to move in the water inspection chamber 101, thereby achieving the purpose of water inspection of the air tightness of the cylinder valve; Further, such as Figure 1-Figure 9 As shown, an electric telescopic rod 901 is provided between the plurality of water inspection chambers 101 , and the output end of the electric telescopic rod 901 is fixedly connected to the lower bottom surface of the disc 802 , so that the electric telescopic rod 901 is convenient for driving the disc 802 to move up and down.

[0024] Among them, Figure 1-Figure 9 As shown, one end of one of the air pressure tubes 107 is connected to a pressure gauge 701, and the other air pressure tube 107 is commonly connected to an air pressure ring 702, and the connection between the air pressure tube 107 and the air pressure ring 702 is connected to a control valve 703. When the high-pressure gas in the air pressure ring 702 enters the cylinder valve through one of the air pressure tubes 107, the pressure index inside the cylinder valve can be clearly observed by using the pressure gauge 701 on the other air pressure tube 107, which is convenient for intuitively understanding the pressure condition inside the cylinder valve. At the same time, the air tightness of the cylinder valve under different air pressures can be understood through the air pressure, and the control valve 703 can control the air pressure in any air pressure tube 107 individually.

[0025] Further, such as Figure 1-Figure 9As shown, an air pump 1001 is fixedly connected to the upper surface of the disc 802 , and the output end of the air pump 1001 is connected to the air pressure ring 702 . The air pump 1001 is used to compress the gas into high-pressure gas, and then transport the high-pressure gas to the inside of the air pressure ring 702 .

[0026] like Figure 1-Figure 9 As shown, the principle of a 5-station cylinder valve airtightness water inspection machine provided by this embodiment is as follows: by pressing the cylinder valve between the two clamping plates 105, the outer side of the cylinder valve and the inner side of the two clamping plates 105 are made to conflict with each other, and the two clamping plates 105 are pushed to slide on the upper surface of the fixed plate 104. While the two clamping plates 105 slide, the connecting rod 1 202 is pulled to slide inside the connecting rod 2 203, and the tension spring 204 is stretched to deform the tension spring 204. Finally, under the action of the tension spring 204, the two clamping plates 105 clamp the cylinder valve, and the micro waterproof motor 601 is started to drive the bidirectional threaded rod 502 to rotate. Under the action of the bidirectional threaded rod 502, the two L-shaped brackets 501 are driven to move relative to each other. Under the push of the L-shaped bracket 501, the sealing plug 3 110, the sealing plug 2 109 and the sealing plug 1 108 move toward the direction of the cylinder valve, and finally in the L-shaped Pushed by the bracket 501, the sealing plug three 110 is tightly in contact with the sealing plug two 109, and the sealing plug two 109 is tightly in contact with the sealing plug one 108, so that one side of the sealing plug one 108 is tightly in contact with one side of the cylinder valve to form a seal, and then the gas is compressed into high-pressure gas by the air compressor 1001, and then transported to the inside of the air pressure ring 702, and flows into the inside of the cylinder valve through the air pressure pipe 107. The air pressure in the cylinder valve will display the corresponding pressure after passing through the pressure gauge 701, and the disc 802 is driven to move downward by the electric telescopic rod 901, and at the same time, multiple moving plates 801 are driven to move downward. When the moving plate 801 moves, it also drives the fixed plate 104 to move downward, so that the fixed plate 104 moves to the inside of the water inspection chamber 101, so that the cylinder valve as a whole is immersed in the detection liquid inside the water inspection chamber 101, and the high-pressure gas inside the cylinder valve cooperates with the detection liquid to realize water inspection of the air tightness of the cylinder valve.

[0027] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0028] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0029] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A 5-station cylinder valve air tightness water inspection machine, comprising 5 water inspection chambers (101), a fixing assembly (102) located inside the water inspection chambers (101), and a stamping assembly (103), characterized in that: The fixing assembly (102) comprises a fixing plate (104) and two clamping plates (105), the two clamping plates (105) are arranged opposite to each other, one end of the clamping plate (105) extends into the inside of the fixing plate (104), the clamping plate (105) is slidably connected to the fixing plate (104), and the opposite sides of the two clamping plates (105) are curved surfaces, so as to facilitate clamping of the cylinder valve; The stamping assembly (103) includes a sealing assembly (106) and an air pressure tube (107), wherein the air pressure tube (107) passes through the sealing assembly (106), and the sealing assembly (106) includes a sealing plug 1 (108), a sealing plug 2 (109) and a sealing plug 3 (110). The sealing plug 1 (108) is truncated cone-shaped, and one end of the sealing plug 1 (108) extends into the interior of the sealing plug 2 (109). The sealing plug 1 (108) is slidably connected to the sealing plug 2 (109), and one end of the sealing plug 2 (109) extends into the interior of the sealing plug 3 (110). The sealing plug 2 (109) is slidably connected to the sealing plug 3 (110). The sealing plug 1 (108), the sealing plug 2 (109) and the sealing plug 3 (110) facilitate sealing the two ends of cylinder valves of different sizes.

2. A 5-station cylinder valve air tightness water inspection machine according to claim 1, characterized in that: A plurality of sliding grooves (201) are provided on opposite sides of the two clamping plates (105), and a connecting rod 1 (202) is fixedly connected inside the sliding groove (201). A connecting rod 2 (203) is slidably connected to the opposite side of the connecting rod 1 (202), and a tension spring (204) is provided between the two opposite connecting rods 1 (202), and both ends of the connecting rod 2 (203) are slidably connected to the sliding groove (201).

3. A 5-station cylinder valve air tightness water inspection machine according to claim 1, characterized in that: A plurality of fixing rods (301) are fixedly connected inside the fixing plate (104), the plurality of fixing rods (301) all penetrate the two clamping plates (105), and the two clamping plates (105) are slidably connected to the plurality of fixing rods (301).

4. A 5-station cylinder valve air tightness water inspection machine according to claim 1, characterized in that: A first resistance spring (401) is provided between the first sealing plug (108) and the second sealing plug (109), and a second resistance spring (402) is provided between the second sealing plug (109) and the third sealing plug (110).

5. A 5-station cylinder valve air tightness water inspection machine according to claim 1, characterized in that: An L-shaped bracket (501) is fixedly connected to one side of the sealing plug three (110), a bidirectional threaded rod (502) is commonly threadedly connected between the two L-shaped brackets (501), and the two L-shaped brackets (501) are fixedly connected to the air pressure tube (107).

6. A 5-station cylinder valve air tightness water inspection machine according to claim 5, characterized in that: A micro waterproof motor (601) is fixedly connected to one side of the fixing plate (104), and an output end of the micro waterproof motor (601) is connected to the bidirectional threaded rod (502).

7. A 5-station cylinder valve air tightness water inspection machine according to claim 1, characterized in that: One end of one of the air pressure tubes (107) is connected to a pressure gauge (701), and the other air pressure tube (107) is connected to an air pressure ring (702), and a control valve (703) is connected at the connection between the air pressure tube (107) and the air pressure ring (702).

8. A 5-station cylinder valve air tightness water inspection machine according to claim 7, characterized in that: A movable plate (801) is fixedly connected to one side of the fixed plate (104), and a plurality of movable plates (801) are commonly connected to a circular disk (802), and the circular disk (802) is located directly above a plurality of water inspection chambers (101).

9. A 5-station cylinder valve air tightness water inspection machine according to claim 8, characterized in that: An electric telescopic rod (901) is provided between the plurality of water inspection chambers (101), and an output end of the electric telescopic rod (901) is fixedly connected to the bottom surface of the disc (802).

10. A 5-station cylinder valve air tightness water inspection machine according to claim 8, characterized in that: An air pressure pump (1001) is fixedly connected to the upper surface of the disc (802), and an output end of the air pressure pump (1001) is in communication with the air pressure ring (702).

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