Bottle valve air tightness testing machine

Abstract

The utility model discloses bottle valve airtightness testing machine belongs to gas cylinder bottle valve airtightness test technical field, including box and water tank assembly, water tank assembly is located the inside of box, the right side of box top is provided with right side cover door, both sides of right side cover door rear side all are provided with hinge, both sides of right side cover door rear side all are through the hinge with the movable joint of box, the bottom of right side cover door is provided with auxiliary support structure, the inside of box is provided with the pressurizing mechanism for water tank assembly pressurization, through setting up box, water tank assembly, right side cover door, hinge, auxiliary support structure and pressurizing mechanism, have solved the existing gas cylinder bottle valve testing machine only to valve carries out 1.2 nominal pressure under the external airtightness test, does not carry out 0.05MPa's low pressure external airtightness test, gas cylinder bottle valve testing machine does not carry out internal airtightness test to valve and the problem that gas cylinder bottle valve testing machine does not have gas source pressurizing device and leads to external gas source test pressure deficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of airtightness test of gas cylinder valves, and particularly relates to an airtightness testing machine for gas cylinder valves. Background Technique

[0002] At present, the test of gas cylinder valves mainly installs the valve on the test device, blocks the air outlet of the valve, opens the valve to any open state, respectively fills 1.2 times of the nominal working pressure from the air inlet of the valve, immerses the valve in water for 1 minute, and checks whether there are bubbles overflowing. If there are bubbles overflowing, repair or scrap it. If there are no bubbles overflowing, it is judged as qualified and can be used continuously.

[0003] The existing gas cylinder valve airtightness testing machines have the following problems in the use process:

[0004] 1. The gas cylinder valve airtightness testing machine only conducts an external airtightness test on the valve under 1.2 nominal pressures, and does not conduct a low-pressure external airtightness test of 0.05 MPa.

[0005] 2. The gas cylinder valve airtightness testing machine does not conduct an internal airtightness test on the valve.

[0006] 3. The gas cylinder valve airtightness testing machine has no air source pressurization device, resulting in insufficient test pressure of the external air source.

[0007] Therefore, a new gas cylinder valve airtightness testing machine is needed. Content of the Utility Model

[0008] In view of the problems existing in the prior art, the utility model provides an airtightness testing machine for gas cylinder valves, which has the advantage of stably testing the airtightness of gas cylinder valves, and solves the problems that the existing gas cylinder valve airtightness testing machines only conduct an external airtightness test on the valve under 1.2 nominal pressures, do not conduct a low-pressure external airtightness test of 0.05 MPa, do not conduct an internal airtightness test on the valve, and have no air source pressurization device resulting in insufficient test pressure of the external air source.

[0009] The utility model is realized as follows. The airtightness testing machine for gas cylinder valves includes a box body and a water tank assembly. The water tank assembly is located inside the box body. A right side cover door is arranged on the right side of the top of the box body. Hinges are arranged on both sides behind the right side cover door. Both sides behind the right side cover door are movably connected to the box body through the hinges. An auxiliary support structure is arranged at the bottom of the right side cover door. A pressurization mechanism for pressurizing the water tank assembly is arranged inside the box body.

[0010] Preferably, the auxiliary support structure includes a gas spring. One end of the gas spring is movably connected to the inner wall of the box body through a first rotating shaft. The other end of the gas spring is movably connected to a bracket through a second rotating shaft. The top of the bracket is fixedly connected to the bottom of the right side cover door.

[0011] As a preferred embodiment of this utility model, the pressurizing mechanism includes an air booster pump, the bottom of which is fixedly connected to the bottom of the inner wall of the tank. A high-pressure hose is fixedly connected to one side of the air booster pump, and a high-pressure needle valve is fixedly connected to the other side of the high-pressure hose. The high-pressure needle valve pressurizes the inside of the water tank assembly through a control switch. A cylinder for raising and lowering the pressurizing component is provided at the bottom of the water tank assembly.

[0012] As a preferred embodiment of this invention, the cylinder is connected to a hand valve for controlling the cylinder at both ends, and a first pressure gauge for monitoring pressure is fixedly connected to one side of the hand valve.

[0013] As a preferred embodiment of this invention, the high-pressure end of the air booster pump is equipped with a shock-resistant high-pressure gauge and an electrical contact pressure gauge for monitoring pressure, and the low-pressure end of the air booster pump is equipped with a low-pressure gauge and a low-pressure precision pressure gauge for monitoring pressure.

[0014] As a preferred embodiment of this utility model, the inside of the right-side cover is provided with a wire mesh for observation and protection, and the top of the water tank assembly is provided with a lighting lamp.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, through the design of a housing, water tank assembly, right-side cover, hinges, auxiliary support structure, and pressurization mechanism, provides a stable containment space for the water tank assembly, protecting it from damage caused by external impacts. The water tank assembly is located inside the housing, resulting in a compact and rational layout that saves space and facilitates the installation and use of the overall equipment. The right-side cover, located on the top right side of the housing, facilitates the operation and maintenance of the water tank assembly and related components inside the housing. When maintenance or water filling is required, simply open the right-side cover; operation is convenient. The rear sides of the right-side cover are connected via hinges... The movable connection of the housing allows for smooth and flexible opening and closing of the right-side cover. The simple and reliable hinge structure ensures the long-term stability of the right-side cover. An auxiliary support structure at the bottom of the right-side cover provides support when it is open, preventing it from suddenly falling due to gravity and ensuring operator safety. It also prevents damage from collisions between the right-side cover and the housing or other components. An internal pressurization mechanism for the water tank assembly allows for pressurization according to actual needs, meeting water pressure requirements under different operating conditions and improving the equipment's flexibility and functionality.

[0017] 2. By setting an auxiliary support structure, this utility model provides stable and flexible support for the cover door during opening and closing. The gas spring provides cushioning and assistance, making it easier and less strenuous to open the cover door. At the same time, it can reduce impact when closing, protecting the cover door and the box structure from damage. This makes the operation of the cover door more convenient and safe, and extends the service life of the equipment.

[0018] 3. This utility model, by setting up a pressurization mechanism, a manual valve, a first pressure gauge, a shock-resistant high-pressure gauge, an electrical contact pressure gauge, a low-pressure gauge, a low-pressure precision pressure gauge, a wire mesh, and a lighting lamp, and by setting up an air booster pump and fixing it to the bottom of the inner wall of the tank, along with a high-pressure hose and a high-pressure needle valve, can achieve stable pressurization of the water tank assembly, improving the efficiency and reliability of pressurization. By setting a cylinder at the bottom of the water tank assembly, with both ends of the cylinder connected to the manual valve and one side of the manual valve fixedly connected to the first pressure gauge, it is possible to easily control the lifting and lowering of the cylinder and monitor the pressure in real time, ensuring the safety and accuracy of the pressurization process. By setting a shock-resistant high-pressure gauge and an electrical contact pressure gauge at the high-pressure end of the air booster pump, and a low-pressure gauge and a low-pressure precision pressure gauge at the low-pressure end, it is possible to comprehensively monitor the pressure at different positions of the booster pump, ensuring the stability of equipment operation. By setting a wire mesh inside the right-side cover, it can serve as an observation and protection mechanism. At the same time, a lighting lamp is set on the top of the water tank assembly to facilitate observation of the internal conditions of the water tank, improving the convenience and safety of use. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram provided by an embodiment of the present utility model;

[0020] Figure 2 This utility model embodiment provides a left sectional view;

[0021] Figure 3 This utility model provides a gas path diagram.

[0022] In the diagram: 1. Tank body; 2. Water tank assembly; 3. Wire mesh; 4. Right side cover; 5. Hinge; 6. Gas spring; 7. First pressure gauge; 8. High-pressure needle valve; 9. Manual valve; 10. Air booster pump; 11. Bracket; 12. Cylinder; 13. High-pressure hose; 14. Shock-resistant high-pressure gauge; 15. Electrical contact pressure gauge; 16. Low-pressure gauge; 17. Low-pressure precision gauge. Detailed Implementation

[0023] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0024] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] like Figures 1 to 3 As shown, the bottle valve airtightness testing machine provided in this embodiment of the utility model includes a housing 1 and a water tank assembly 2. The water tank assembly 2 is located inside the housing 1. A right-side cover door 4 is provided on the right side of the top of the housing 1. Hinges 5 are provided on both sides of the rear side of the right-side cover door 4. Both sides of the rear side of the right-side cover door 4 are movably connected to the housing 1 through the hinges 5. An auxiliary support structure is provided at the bottom of the right-side cover door 4. A pressurizing mechanism for pressurizing the water tank assembly 2 is provided inside the housing 1.

[0026] The auxiliary support structure includes a gas spring 6. One end of the gas spring 6 is movably connected to the inner wall of the housing 1 via a first rotating shaft, and the other end of the gas spring 6 is movably connected to a bracket 11 via a second rotating shaft. The top of the bracket 11 is fixedly connected to the bottom of the right side cover 4.

[0027] The above solution provides stable and flexible support for the door during opening and closing. The gas spring 6 provides cushioning and assistance, making it easier and less strenuous to open the door. At the same time, it can reduce impact when closing, protecting the door and the structure of the housing 1 from damage. This makes the operation of the door more convenient and safe, and extends the service life of the equipment.

[0028] The pressurization mechanism includes an air booster pump 10, the bottom of which is fixedly connected to the bottom of the inner wall of the tank 1. A high-pressure hose 13 is fixedly connected to one side of the air booster pump 10, and a high-pressure needle valve 8 is fixedly connected to the other side of the high-pressure hose 13. The high-pressure needle valve 8 pressurizes the inside of the water tank assembly 2 through a control switch. A cylinder 12 for raising and lowering the pressurization component is provided at the bottom of the water tank assembly 2. A hand valve 9 for controlling the cylinder 12 is connected to both ends of the cylinder 12. A first pressure gauge 7 for monitoring pressure is fixedly connected to one side of the hand valve 9. A shock-resistant high-pressure gauge 14 and an electrical contact pressure gauge 15 for monitoring pressure are provided at the high-pressure end of the air booster pump 10. A low-pressure gauge 16 and a low-pressure precision pressure gauge 17 for monitoring pressure are provided at the low-pressure end of the air booster pump 10. A wire mesh 3 for observation and protection is provided inside the right-side cover 4. A lighting lamp is provided on the top of the water tank assembly 2.

[0029] The above solution involves: By installing an air booster pump 10 and fixing it to the bottom of the inner wall of the tank 1, along with a high-pressure hose 13 and a high-pressure needle valve 8, stable pressurization of the water tank assembly 2 can be achieved, improving pressurization efficiency and reliability. A cylinder 12 is installed at the bottom of the water tank assembly 2, with both ends connected to a hand-operated valve 9. A first pressure gauge 7 is fixedly connected to one side of the hand-operated valve 9, allowing for convenient control of the cylinder 12's lifting and lowering and real-time pressure monitoring, ensuring the safety and accuracy of the pressurization process. A shock-resistant high-pressure gauge 14 and an electrical contact pressure gauge 15 are installed at the high-pressure end of the air booster pump 10, while a low-pressure gauge 16 and a low-pressure precision pressure gauge 17 are installed at the low-pressure end, enabling comprehensive monitoring of the pressure at different locations of the booster pump and ensuring the stability of equipment operation. A wire mesh 3 is installed inside the right-side cover 4 for observation and protection. Additionally, a lighting fixture is installed on the top of the water tank assembly 2 for easy observation of the water tank's interior, enhancing both convenience and safety.

[0030] The working principle of this utility model:

[0031] When in use, the gas cylinder valve airtightness testing machine is set at room temperature. The valve is installed on the testing device, the valve outlet is blocked, and the valve is opened to any open state. The valve inlet is filled with 1.2 times the nominal working pressure and 0.05 MPa respectively to conduct the airtightness test. The valve is immersed in water and observed for 1 minute. There should be no bubbles. The gas cylinder valve airtightness testing machine performs an internal airtightness test on the valve. At room temperature, install the valve on the test apparatus, close the valve, remove the valve outlet seal, and charge the valve with 1.2 times the nominal working pressure and 0.05 MPa pressure respectively through the valve inlet to conduct an airtightness test. Immerse the valve in water and observe for 1 minute; there should be no bubbles. Add a gas booster pump to stabilize the test gas source pressure and ensure that the test pressure meets the requirements. During operation, turn on the light above the water tank assembly 2 and turn on the electrical control valve button of the air booster pump 10 to start the air booster pump 10. When the pressure increases to the set pressure, the pressure sensor of the electric contact pressure gauge 15 triggers a signal, and the air booster pump 10 is electrically controlled to stop working. The valve automatically closes, and the air circuit is in a pressure-holding state. Test the valve. After the test, open the vent valve to release pressure, and the test process ends.

[0032] In summary, this cylinder valve airtightness testing machine, through the coordinated use of the following components—box 1, water tank assembly 2, wire mesh 3, right side cover 4, hinge 5, gas spring 6, first pressure gauge 7, high-pressure needle valve 8, manual valve 9, air booster pump 10, bracket 11, cylinder 12, high-pressure hose 13, shock-resistant high-pressure gauge 14, electrical contact pressure gauge 15, low-pressure pressure gauge 16, and low-pressure precision pressure gauge 17—solves the problems of existing cylinder valve testing machines that only perform external airtightness tests at 1.2 nominal pressure, without performing low-pressure external airtightness tests at 0.05 MPa, without performing internal airtightness tests, and without an air source booster device resulting in insufficient external air source test pressure.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bottle valve air tightness tester, characterized in that: The device includes a housing (1) and a water tank assembly (2). The water tank assembly (2) is located inside the housing (1). A right-side cover door (4) is provided on the right side of the top of the housing (1). Hinges (5) are provided on both sides of the rear side of the right-side cover door (4). Both sides of the rear side of the right-side cover door (4) are movably connected to the housing (1) through the hinges (5). An auxiliary support structure is provided at the bottom of the right-side cover door (4). A pressurization mechanism for pressurizing the water tank assembly (2) is provided inside the housing (1).

2. The bottle valve airtightness testing machine as described in claim 1, characterized in that: The auxiliary support structure includes a gas spring (6), one end of which is movably connected to the inner wall of the box (1) via a first rotating shaft, and the other end of which is movably connected to a bracket (11) via a second rotating shaft. The top of the bracket (11) is fixedly connected to the bottom of the right side cover (4).

3. The bottle valve airtightness testing machine as described in claim 1, characterized in that: The pressurization mechanism includes an air booster pump (10), the bottom of which is fixedly connected to the bottom of the inner wall of the housing (1). A high-pressure hose (13) is fixedly connected to one side of the air booster pump (10), and a high-pressure needle valve (8) is fixedly connected to the other side of the high-pressure hose (13). The high-pressure needle valve (8) pressurizes the inside of the water tank assembly (2) through a control switch. A cylinder (12) for lifting and lowering the pressurization component is provided at the bottom of the water tank assembly (2).

4. The bottle valve airtightness testing machine as described in claim 3, characterized in that: The cylinder (12) is connected to a hand valve (9) for controlling the cylinder (12) at both ends, and a first pressure gauge (7) for monitoring pressure is fixedly connected to one side of the hand valve (9).

5. The bottle valve airtightness testing machine as described in claim 3, characterized in that: The high-pressure end of the air booster pump (10) is equipped with a shock-resistant high-pressure gauge (14) and an electrical contact gauge (15) for monitoring pressure, and the low-pressure end of the air booster pump (10) is equipped with a low-pressure gauge (16) and a low-pressure precision gauge (17) for monitoring pressure.

6. The bottle valve airtightness testing machine as described in claim 1, characterized in that: The inside of the right-side cover (4) is provided with a wire mesh (3) for observation and protection, and the top of the water tank assembly (2) is provided with a lighting lamp.

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