Connector airtightness detection tool

Abstract

The utility model provides a connector airtightness detection tool, which comprises a connector detection box, a circular sealing plate and a pressure display meter, the front surface of the connector detection box is provided with a sealing feeding hole connected with the circular sealing plate, the back surface of the circular sealing plate is provided with an inflatable sealing ring, an inflation hole of the inflatable sealing ring is provided with an inflation hose, and the inflation hose is connected with the pressure display meter. An inflation external pipe is arranged at one end of the inflation hose, and an inflation sealing head is arranged at one end of the inflation external pipe; the inflatable sealing ring is installed on the back face of the circular sealing plate, the inflation hose is installed at the inflation hole of the inflatable sealing ring, the inflation external connection pipe is arranged at one end of the inflation hose, and the inflation sealing head is arranged at one end of the inflation external connection pipe. The inflatable sealing ring is bulged to be better attached to the edge of the sealing feeding hole, the sealing effect is improved through the annular sealing edge, the air leakage phenomenon existing in a closed space is reduced, detection errors are avoided, and the detection precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection jigs and relates to an airtight detection jig for connectors. Background Art

[0002] The air tightness testing technology uses equal amounts of air intake, pressure stabilization, testing, and then detecting changes in gas pressure and volume. The precision tester system undergoes a series of sampling, calculation, and analysis to derive its leakage rate, leakage value, etc., and makes a judgment on the air tightness performance of the product being tested based on these data. A certain volume of gas at a certain pressure is introduced into the closed workpiece cavity, and the pressure is stabilized for a period of time. The compressed air supply of the component is then disconnected, and the pressure change is measured after a predetermined measurement time. If there is a leak, the sensing pressure will drop, and a jig is required during the test process. For example, patent number CN202320096745.7 discloses an air tightness detection jig, which belongs to the field of air tightness testing technology. This solution can introduce a certain volume of gas at a certain pressure into the closed first chamber, and stabilize the pressure for a period of time. The compressed air supply of the component is then disconnected, and the pressure change is measured after a predetermined measurement time. Alternatively, you can introduce gas at a certain pressure into the sealed first chamber, and simultaneously introduce gas at the same pressure into the second chamber. Wait for a while and observe the pressure in the second chamber and the workpiece, as well as the slight pressure difference on the differential pressure sensor caused by leakage.

[0003] The above-disclosed solution has the disadvantage that the connection between the gland and the base is not well sealed, which results in air leakage in the enclosed space and affects the detection accuracy. Therefore, we design a connector airtightness detection fixture. Summary of the Invention

[0004] The purpose of the present utility model is to provide a connector airtightness detection jig to solve the problems raised in the above background technology.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a connector airtightness detection jig, comprising a connector detection box, a circular sealing plate and a pressure display gauge, wherein the front of the connector detection box is provided with a sealing feeding hole connected to the circular sealing plate, the back of the circular sealing plate is provided with an inflatable sealing ring, an inflatable hose is provided at the inflatable hole of the inflatable sealing ring, one end of the inflatable hose is provided with an inflatable external pipe, and one end of the inflatable external pipe is provided with an inflatable sealing head;

[0006] An air intake connecting pipe is installed at the bottom of one side of the connector detection box, and a quick connection joint is provided at one end of the air intake connecting pipe. A start-stop control button is installed at the top of one side of the connector detection box, and an air release control valve is installed at the top of the connector detection box.

[0007] In the above-mentioned connector airtightness detection fixture, a connector clamping sleeve is installed in the middle of the back side of the circular sealing plate, a sealing mounting sleeve is provided inside the connector clamping sleeve, and two limit bayonets distributed at right angles are provided inside the sealing mounting sleeve.

[0008] In the above-mentioned connector airtightness detection jig, a sealing ring connected to the sealing cavity of the connector detection box is installed at the end of the sealing installation sleeve.

[0009] In the above-mentioned connector airtightness detection fixture, a pressure gauge mounting block is provided at the corner of the front of the connector detection box, the pressure display gauge is assembled at the pressure gauge mounting block and the measuring end of the pressure display gauge corresponds to the sealed cavity of the connector detection box.

[0010] In the above-mentioned connector airtightness detection jig, a hollow handle is installed in the middle of the front side of the circular sealing plate, and the external inflation tube is located inside the hollow handle.

[0011] In the above-mentioned connector airtightness detection jig, an annular sealing edge is provided at the outer edge of the inflatable sealing ring.

[0012] Compared with the prior art, the advantages of the connector airtight detection fixture of the present invention are as follows: by installing an inflatable sealing ring on the back of the circular sealing plate, an inflatable hose is installed at the inflation hole of the inflatable sealing ring, an inflation external pipe is provided at one end of the inflation hose, and an inflatable sealing head is provided at one end of the inflation external pipe, the inflatable sealing ring can be inflated and better fit with the edge of the sealing feeding hole by introducing a compressed air source, and the annular sealing edge is used to increase the sealing effect, reduce the leakage in the enclosed space, avoid detection errors, and improve detection accuracy; by installing a connector clamping sleeve in the middle of the back of the circular sealing plate, a sealing mounting sleeve is provided inside the connector clamping sleeve, and two limit bayonets distributed at right angles are provided inside the sealing mounting sleeve, the connector can be better installed, the sealing of the connection is increased, and the detection credibility is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a three-dimensional structural diagram of a connector airtightness detection fixture.

[0014] Figure 2 The utility model is a three-dimensional structural diagram of a circular sealing plate of a connector airtightness detection fixture.

[0015] Figure 3 The utility model is a three-dimensional structural diagram of a connector clamping sleeve of a connector airtightness detection jig.

[0016] In the figure, 1. Connector detection box; 2. Circular sealing plate; 3. Hollow handle; 4. Pressure gauge mounting block; 5. Pressure display gauge; 6. Deflation control valve; 7. Start / stop control button; 8. Inlet connecting pipe; 9. Quick connect connector; 10. Annular sealing edge; 11. Inflating external pipe; 12. Inflating sealing head; 13. Inflating hose; 14. Connector clamping sleeve; 15. Inflatable sealing ring; 16. Sealing ring; 17. Limiting bayonet; 18. Sealing mounting sleeve. DETAILED DESCRIPTION

[0017] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0018] like Figure 1 、 Figure 2 and Figure 3 As shown, the utility model is a connector airtightness detection fixture;

[0019] Embodiment: It includes a connector detection box 1, a circular sealing plate 2 and a pressure display gauge 5. The front of the connector detection box 1 is provided with a sealing feeding hole connected to the circular sealing plate 2, and the back of the circular sealing plate 2 is installed with an inflatable sealing ring 15. An inflatable hose 13 is installed at the inflation hole of the inflatable sealing ring 15, and an inflatable external tube 11 is provided at one end of the inflatable hose 13. An inflatable sealing head 12 is provided at one end of the inflatable external tube 11; an annular sealing edge 10 is provided at the outer edge of the inflatable sealing ring 15.

[0020] On the basis of Example 1, in order to facilitate the air source: an air intake connecting pipe 8 is installed at the bottom of one side of the connector detection box 1, a quick connection joint 9 is provided at one end of the air intake connecting pipe 8, a start-stop control button 7 is installed at the top of one side of the connector detection box 1, and an air release control valve 6 is installed at the top of the connector detection box 1.

[0021] In this embodiment, in order to better connect the connector, make the connector firmly connected to the circular sealing plate 2, and at the same time form a closed space with the detection cavity of the connector detection box 1, a connector clamping sleeve 14 is installed in the middle of the back side of the circular sealing plate 2, and a sealing mounting sleeve 18 is provided inside the connector clamping sleeve 14, and two limiting bayonet marks 17 distributed at right angles are provided inside the sealing mounting sleeve 18; the end of the sealing mounting sleeve 18 is installed with a sealing ring 16 connected to the sealing cavity of the connector detection box 1.

[0022] In this embodiment, in order to facilitate the intuitive observation and recording of the pressure value changes of the connector detection box 1, a pressure gauge mounting block 4 is provided at the corner of the front of the connector detection box 1, and the pressure display gauge 5 is assembled at the pressure gauge mounting block 4 and the measuring end of the pressure display gauge 5 corresponds to the sealed cavity of the connector detection box 1.

[0023] In this embodiment, in order to better open and close the circular sealing plate 2 , a hollow handle 3 is installed in the middle of the front side of the circular sealing plate 2 , and the external inflation tube 11 is located inside the hollow handle 3 .

[0024] Working principle: Open the circular sealing plate 2 through the hollow handle 3, and install the connector into the inside of the connector clamping sleeve 14. The sealing installation sleeve 18 inside the connector clamping sleeve 14 is specially customized according to the shape of the connector to ensure that the contact gap is minimized after connection. Then the circular sealing plate 2 is docked to the sealing feeding hole of the connector detection box 1, and the air source is connected through the inflatable sealing head 12, so that the inflatable sealing ring 15 is inflated to better fit the edge of the sealing feeding hole, and the annular sealing edge 10 is used to increase the sealing effect, reduce the leakage in the enclosed space, avoid detection errors, and improve detection accuracy.

[0025] Matters not described in detail in this specification constitute prior art known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art to which the present invention relates may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A connector airtightness detection jig, comprising a connector detection box (1), a circular sealing plate (2) and a pressure display gauge (5), characterized in that: The front of the connector detection box (1) is provided with a sealing feeding hole connected to the circular sealing plate (2); the back of the circular sealing plate (2) is provided with an inflatable sealing ring (15); an inflatable hose (13) is provided at the inflation hole of the inflatable sealing ring (15); one end of the inflatable hose (13) is provided with an inflatable external pipe (11); and one end of the inflatable external pipe (11) is provided with an inflatable sealing head (12); An air intake connection pipe (8) is installed at the bottom of one side of the connector detection box (1), and a quick connection joint (9) is provided at one end of the air intake connection pipe (8). A start / stop control button (7) is installed at the top of one side of the connector detection box (1), and an air release control valve (6) is installed at the top of the connector detection box (1).

2. A connector airtightness detection jig according to claim 1, characterized in that: A connector clamping sleeve (14) is installed in the middle of the back side of the circular sealing plate (2), a sealing installation sleeve (18) is provided inside the connector clamping sleeve (14), and two limiting bayonets (17) distributed at right angles are provided inside the sealing installation sleeve (18).

3. A connector airtightness detection jig according to claim 2, characterized in that: A sealing ring (16) connected to the sealing cavity of the connector detection box (1) is installed at the end of the sealing installation sleeve (18).

4. The connector airtightness detection jig according to claim 1, characterized in that: A pressure gauge mounting block (4) is provided at a corner of the front face of the connector detection box (1), the pressure display gauge (5) is assembled at the pressure gauge mounting block (4), and a measuring end of the pressure display gauge (5) corresponds to the sealed cavity of the connector detection box (1).

5. The connector airtightness detection jig according to claim 1, characterized in that: A hollow handle (3) is installed in the middle of the front of the circular sealing plate (2), and the inflation external pipe (11) is located inside the hollow handle (3).

6. The connector airtightness detection jig according to claim 1, characterized in that: An annular sealing edge (10) is provided at the outer edge of the inflatable sealing ring (15).

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