Air tightness inspection inflation valve tool

Abstract

The utility model relates to an air tightness inspection structure, in particular to an air tightness inspection inflation valve tool. An air tightness inspection inflation valve tool comprises a base, the outer side of the base is sleeved with a rubber ring, and the top end of the base is sequentially connected with a high-pressure inflation ball valve and a quick-plug air head from near to far through a pipeline; according to the inflation valve tool, a top core inflation and deflation device and a detection interface of an original inflation valve are combined into a whole, the thickness of the base is reduced, the overall height of the inflation valve tool is reduced, when the inflation valve tool is used, the opening force on an exhaust valve protection cover is reduced, the phenomenon that the edge of the exhaust valve protection cover is unglued is avoided, and the service life of the inflation valve tool is prolonged. And the repair rate and the rejection rate of the positive pressure clothes are reduced. Meanwhile, due to the fact that the high-pressure inflation ball valve and the quick connector are used, inflation operation can be completed quickly, the airtightness testing time is shortened, and the airtightness testing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to an air tightness testing structure, in particular to an air tightness testing inflation valve tool. Background Art

[0002] The positive pressure suit has a fully enclosed, airtight structure. To ensure its airtightness, each set of the suit must be tested for airtightness. The test method is based on the provisions of Appendix A of GB / T 24539-2009. The specific operation method is as follows: remove an exhaust valve on the back of the positive pressure suit, install the inflation valve tooling, and inflate the positive pressure suit to 1.0 kPa. The pressure drop within 4 minutes must not exceed 200 Pa to pass the test.

[0003] The existing inflation valve tooling is a split pagoda structure, consisting of a top core inflation and deflation device, a pressure measuring interface, a rubber ring and the original base. Figure 1 As shown. When using the inflation valve, you need to first remove the exhaust valve on the back of the positive pressure suit and install the inflation valve at the exhaust valve opening, where the original base 5 is located on the inside of the positive pressure suit, and the other components are located between the outer surface of the positive pressure suit and the exhaust valve protective cover. Since the height of the inflation valve tooling inside the exhaust valve protective cover is relatively high, the edge of the exhaust valve protective cover is stretched too much, causing the edge to come apart. After the inflation valve is installed at the exhaust valve opening of the positive pressure suit, connect the rubber tube of the U-tube differential pressure gauge to the pressure measuring interface, connect the inflation pump to the top core inflation and deflation interface, and turn on the inflation pump to inflate. Since the inflation valve's inflation and deflation interface is a top core design, the speed of inflation and deflation is slow, resulting in a longer operation time for the airtightness test and lower efficiency for the airtightness test, which is not conducive to the mass production of positive pressure suits. Summary of the Invention

[0004] The utility model provides an airtight inspection inflation valve tool to solve the technical problems that the original inflation valve tool is easy to stretch the edge of the exhaust valve protection cover of the positive pressure suit, the inflation and deflation operation time is long during use, and the airtight inspection efficiency is low.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an airtight inspection inflation valve tooling, including a base, a rubber ring is sleeved on the outer side of the base, and the top of the base is connected to a high-pressure inflation ball valve and a quick-connect air head in sequence from near to far through a pipeline.

[0006] Furthermore, the model of the high-pressure inflation ball valve is Q347F-1500LB, Pneuton-3000PSI‌, HGZQ341H-6000LB‌ or KHP-5000PSIG‌.

[0007] Furthermore, the quick-connect gas head is a ferrule-to-pagoda connector.

[0008] Furthermore, the overall height of the airtight inspection inflation valve tooling is 2.8 cm.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] The utility model improves the original inflation and deflation port and pressure measuring port, integrates them into one, and adds a high-pressure inflation ball valve and a quick-plug air connector, shortening the inflation time from the original 5.13 minutes to 1.05 minutes, making the inflation and deflation operations more convenient and quick, and improving the efficiency of airtightness testing; at the same time, the overall height of the inflation valve is reduced. When the positive pressure suit is used, the height of the inflation valve in the protective cover is reduced from the original 6 cm to 2.8 cm, which can reduce the force of opening the protective cover and avoid damaging the appearance of the protective cover.

[0011] Using this inflation valve to perform airtightness testing on positive pressure suits can reduce the return rate of positive pressure suits from 100% to 0, and the scrap rate from 5% to 0, thereby improving the production efficiency of positive pressure suits and meeting the requirements of airtightness testing during mass production of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the original inflation valve tooling structure.

[0013] Figure 2 This is a schematic diagram of the structure of the airtight inspection inflation valve tooling of the utility model.

[0014] The following are marked in the figure:

[0015] 1-base, 2-rubber ring, 3-high-pressure inflation ball valve, 4-quick-connector, 5-original base, 6-top core inflation and deflation device, 7-pressure measuring interface. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to specific embodiments. Example

[0017] like Figure 2 As shown, an airtight inspection inflation valve tool includes a base 1, a rubber ring 2 is provided on the outer side of the base 1, and the top of the base 1 is connected to a high-pressure inflation ball valve 3 and a quick-connect air head 4 in sequence from near to far through pipelines. A vent is provided on the base 1. The structure of the base 1 is the same as that of the original base 5, but the size is different.

[0018] Furthermore, the model of the high-pressure inflation ball valve 3 is Q347F-1500LB, Pneuton-3000PSI‌, HGZQ341H-6000LB‌ or KHP-5000PSIG‌.

[0019] Furthermore, the quick-connect gas head 4 is a ferrule-to-pagoda connector.

[0020] Furthermore, the overall height of the airtight inspection inflation valve tooling is 2.8 cm.

[0021] Working process: When using the inflation valve tooling of the utility model, the base 1 is located inside the positive pressure suit, and the other components are located between the outer surface of the positive pressure suit and the exhaust valve protective cover. The air pump is connected to the quick-connect air connector 4. After passing through the high-pressure inflation ball valve 3, the inflation time is reduced from the original 5.13 minutes to 1.05 minutes, and the inflation operation can be completed quickly. After inflation is completed, the knob of the high-pressure inflation ball valve 3 is closed, and the quick-connect air connector 4 is connected to the U-tube differential pressure gauge to perform an airtightness test. The operation is convenient and quick, shortening the time of airtightness testing and improving the efficiency of airtightness testing of the positive pressure suit.

[0022] This new inflation valve fixture integrates the original inflation valve's top core inflation and deflation device and detection interface into one unit. The thickness of the base is reduced, reducing the overall height of the inflation valve fixture. When installed in a positive pressure suit, the force required to open the exhaust valve protective cover is reduced, preventing the exhaust valve protective cover from debonding at the edge, thereby reducing the suit's repair and scrap rates. It also offers the advantages of an attractive appearance and convenient and quick operation.

[0023] The inflation valve tooling of the utility model is added with a high-pressure inflation ball valve and a quick-plug air head, which can achieve the effect of rapid inflation, shorten the airtightness test time, and improve the airtightness test efficiency. At the same time, the inflation valve has a simple appearance and structure and a low overall height. It does not damage the appearance of the product when used, reduces the return rate and scrap rate of positive pressure clothing, and is suitable for the mass production of positive pressure clothing.

[0024] The utility model of the inflation valve tool can be applied to the inflation and deflation operations of positive pressure and negative pressure products. When used for the airtightness test of a certain positive pressure suit, the inflation time of the airtightness test is shortened from the original 5.13 minutes to 1.05 minutes, thereby improving the efficiency of the airtightness test. The daily inspection volume of the positive pressure suit is increased from 60 sets / day to 100 sets / day, shortening the inspection cycle of the positive pressure suit, and can complete the airtightness test quickly and efficiently. At the same time, the inflation valve reduces the overall height. During use, it avoids the phenomenon of the edge of the positive pressure suit exhaust valve protective cover coming apart. The original repair rate generated in the airtightness test of the positive pressure suit is reduced from 100% to 0, and the scrap rate is reduced from 5% to 0, saving the production cost of the positive pressure suit and improving production efficiency.

[0025] This utility model reduces the repair and scrap rate of positive pressure suits and improves the efficiency of airtightness testing. It can improve the production efficiency of positive pressure suits and reduce production costs during mass production. It is widely applicable to airtightness testing or inflation and deflation operations of various airtight positive pressure suits and other positive and negative pressure products.

Claims

1. An airtight inspection inflation valve tool, characterized in that: The base (1) comprises a base, the outer side of which is provided with a rubber ring (2), and the top of the base (1) is connected to a high-pressure inflation ball valve (3) and a quick-connect air head (4) in sequence from near to far via a pipeline.

2. The airtight inspection and inflation valve tool according to claim 1, characterized in that: The model of the high-pressure inflation ball valve (3) is Q347F-1500LB, HGZQ341H-6000LB‌ or KHP-5000PSIG‌.

3. The airtightness inspection and inflation valve tool according to claim 1, characterized in that: The quick-connect gas head (4) is a ferrule-to-pagoda connector.

4. The airtightness inspection and inflation valve tool according to claim 1, characterized in that: The overall height of the airtight inspection inflation valve tooling is 2.8 cm.

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