CN204085794U - A kind of gastight joint and apply the stiffening ring leakage testing device of this gastight joint - Google Patents
A kind of gastight joint and apply the stiffening ring leakage testing device of this gastight joint Download PDFInfo
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- CN204085794U CN204085794U CN201420488720.2U CN201420488720U CN204085794U CN 204085794 U CN204085794 U CN 204085794U CN 201420488720 U CN201420488720 U CN 201420488720U CN 204085794 U CN204085794 U CN 204085794U
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- stiffening ring
- gastight joint
- gastight
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Abstract
The utility model discloses a kind of gastight joint and apply the stiffening ring leakage testing device of this gastight joint, gastight joint is provided with the domatic rearward end of class, can carry out attaching easily with plastics software, and its structure is simple, low cost of manufacture.Stiffening ring leakage testing device comprises above-mentioned gastight joint, the first connecting pipe, buffering gas storage cavity, tensimeter, air valve, the second connecting pipe and gas transmission equipment; External thread leading section and the domatic rearward end of class are respectively gas outlet and the air intake opening of gastight joint, the air intake opening of gastight joint is connected with the gas outlet of the second connecting pipe with gas transmission equipment by the first connecting pipe, buffering gas storage cavity, air valve successively, the gas outlet of gastight joint adapts to the instrument connection of tested stiffening ring, namely the external diameter of external thread leading section adapts to the instrument connection aperture of tested stiffening ring, manometric test port is communicated with buffering gas storage cavity, and it has high pressure stability, advantage easy to use.
Description
Technical field
The utility model relates to a kind of gastight joint, and the utility model also relates to a kind of stiffening ring leakage testing device of this gastight joint of application.
Background technology
In pipeline, equipment installation project, the stiffening ring of pipeline, equipment all needs to carry out tightness test.Air compressor machine or the gas cylinder of adopting carried out pressure test leak-detecting more in the past.The major defect that traditional employing air compressor machine carries out testing leak detection is: erecting stage needs the equipment of leak detection and line distribution comparatively wide, utilizes air compressor machine and carry out pressure testing to there will be the bad searching of power supply, and mobile compressor needs the problem such as labor intensive and time.Adopt air compressor machine to hunt leak simultaneously, part aqueous vapor and oil gas can be made to enter position to be checked, build-up of pressure table counting is inaccurate.The pressure used due to equipment, the pressure testing of pipeline strength rehabilitation plate is all very little, adopts air compressor machine pressurization, the bad control of test pressure.Pressurize as adopted gas cylinder and carry out its major defect of pressure test leak-detecting and be, the distributed more widely at the construction field (site) and dispersion in required position to be tested, needs constantly to carry out mobile gas cylinder, needs labor intensive and time, be unfavorable for the control of on-the-spot progress.And adopt gas cylinder to carry out pressurization leakage detection, need each switch gas cylinder to carry out Stress control, troublesome poeration, and wayward pressure.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of gastight joint.
Another technical matters to be solved in the utility model is: provide a kind of stiffening ring leakage testing device applying above-mentioned gastight joint.
Solve the problems of the technologies described above, the technical scheme that the utility model adopts is as follows:
A kind of gastight joint, it is characterized in that: described gastight joint comprises external thread leading section, nut pars intermedia and the domatic rearward end of class, the domatic rearward end of described class stackedly to be formed by the two or more special-shaped right cylinder with evagination arc-shaped circumference face is coaxial, the end face that adjacent two special-shaped right cylinders connect overlaps, each special-shaped cylindrical front end face external diameter is greater than rear end face external diameter, further, described gastight joint is provided with the gas transmission through hole coaxial with described external thread leading section, nut pars intermedia and the domatic rearward end of class.
As a kind of embodiment of the present utility model, described gastight joint is one-body molded.
Apply a stiffening ring leakage testing device for above-mentioned gastight joint, it is characterized in that: described stiffening ring leakage testing device comprises above-mentioned gastight joint, the first connecting pipe, buffering gas storage cavity, tensimeter, air valve, the second connecting pipe and gas transmission equipment; Described external thread leading section and the domatic rearward end of class are respectively gas outlet and the air intake opening of gastight joint, the air intake opening of gastight joint is connected with the gas outlet of the second connecting pipe with gas transmission equipment by the first connecting pipe, buffering gas storage cavity, air valve successively, the gas outlet of described gastight joint adapts to the instrument connection of tested stiffening ring, namely the external diameter of described external thread leading section adapts to the instrument connection aperture of tested stiffening ring, and described manometric test port is communicated with described buffering gas storage cavity.
As a kind of embodiment of the present utility model, described buffering gas storage cavity comprises the first nipple joint, screw thread three-way connector and the second nipple joint; The internal diameter of described screw thread three-way connector is greater than the internal diameter of described first nipple joint and the second nipple joint, the rear end of described first nipple joint and the front end of the second nipple joint are threaded with two openings of screw thread three-way connector respectively, the 3rd opening of described manometric test port connecting thread three-way connector.
As a kind of embodiment of the present utility model, the first described connecting pipe comprises the first plastic flexible pipe and the first gas circuit hose adapter; The front end of described first plastic flexible pipe is connected with the air intake opening of described gastight joint, rear end is connected by the front end of the first gas circuit hose adapter with described first nipple joint.
As a kind of embodiment of the present utility model, the second described connecting pipe comprises the 3rd nipple joint, the second gas circuit hose adapter and the second plastic flexible pipe; The rear end of described second plastic flexible pipe is connected with the gas outlet of described gas transmission equipment, front end is connected by the rear end of the second gas circuit hose adapter with the 3rd nipple joint, and the front end of described 3rd nipple joint is connected by the rear end of described air valve with described second nipple joint.
In order to control flow accurately when less flow, as a kind of embodiment of the present utility model, described air valve is needle valve.
As a kind of embodiment of the present utility model, described gas transmission equipment is foot pump or inflator.
Compared with prior art, the utility model has following beneficial effect:
The first, gastight joint of the present utility model is provided with the domatic rearward end of class, can carry out attaching easily with plastics software, and its structure is simple, low cost of manufacture;
Second, stiffening ring leakage testing device of the present utility model is provided with buffering gas storage cavity, can the air of gas transmission equipment input be cushioned and be stored, so that stable test pressure can be formed to the instrument connection of tested stiffening ring after air valve is closed, and after test pressure, air pressure can be discharged by air valve, therefore, the utility model does not need to carry out controlled pressure by switch gas cylinder and switch air compressor machine, has high pressure stability, advantage easy to use;
3rd, the utility model adopts foot pump or inflator as gas transmission equipment, and it is convenient mobile, does not need external power supply, does not need extra pressure testing gas and landed cost;
4th, method for making of the present utility model is simple, and cost of manufacture is low, can reuse, and demolition, installation, conveniently moving, greatly reduce construction cost, be convenient to apply on a large scale.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the structural representation of gastight joint of the present utility model;
Fig. 2 is the structural representation of stiffening ring leakage testing device of the present utility model.
Embodiment
As shown in Figure 1, gastight joint 2 of the present utility model comprises integrated external thread leading section 201, nut pars intermedia 202 and the domatic rearward end 203 of class, the domatic rearward end of class 203 stackedly to be formed by the two or more special-shaped right cylinder with evagination arc-shaped circumference face is coaxial, the end face that adjacent two special-shaped right cylinders connect overlaps, each special-shaped cylindrical front end face external diameter is greater than rear end face external diameter, thus make the domatic rearward end of class 203 form the large domatic sidewall of class in little front end, rear end, and, gastight joint 2 is provided with and external thread leading section 201, nut pars intermedia 202 and the coaxial gas transmission through hole 2a of the domatic rearward end of class 203.
As shown in Figure 2, stiffening ring leakage testing device, comprises above-mentioned gastight joint 2, first connecting pipe, buffering gas storage cavity, tensimeter 7, air valve 9, second connecting pipe and gas transmission equipment 13.External thread leading section 201 and the domatic rearward end 203 of class are respectively gas outlet and the air intake opening of gastight joint 2, air valve 9 is needle valve, gas transmission equipment 13 is foot pump or inflator, the air intake opening of gastight joint 2 is successively by the first connecting pipe, buffering gas storage cavity, air valve 9 is connected with the gas outlet of the second connecting pipe with gas transmission equipment 13, the gas outlet of gastight joint 2 adapts to tested stiffening ring for testing bubble-tight instrument connection, namely the external diameter of external thread leading section 201 adapts to the instrument connection aperture of tested stiffening ring, the test port of tensimeter 7 is communicated with buffering gas storage cavity.
Buffering gas storage cavity of the present utility model comprises the first nipple joint 5, screw thread three-way connector 6 and the second nipple joint 8; The internal diameter of screw thread three-way connector 6 is greater than the internal diameter of the first nipple joint 5 and the second nipple joint 8, the rear end of the first nipple joint 5 and the front end of the second nipple joint 8 are threaded with two openings of screw thread three-way connector 6 respectively, the 3rd opening of the test port connecting thread three-way connector 6 of tensimeter 7.
First connecting pipe of the present utility model comprises the first plastic flexible pipe 3 and the first gas circuit hose adapter 4; The front end of the first plastic flexible pipe 3 is connected with the air intake opening of gastight joint 2, rear end is connected by the front end of the first gas circuit hose adapter 4 with the first nipple joint 5.
Second connecting pipe of the present utility model comprises the 3rd nipple joint 10, second gas circuit hose adapter 11 and the second plastic flexible pipe 12; The rear end of the second plastic flexible pipe 12 is connected with the gas outlet of gas transmission equipment 13, front end is connected by the rear end of the second gas circuit hose adapter 11 with the 3rd nipple joint 10, and the front end of the 3rd nipple joint 10 is connected by the rear end of air valve 9 with the second nipple joint 8.
When using the stiffening ring of stiffening ring leakage testing device of the present utility model to pipeline or equipment to carry out tightness test, the gas outlet of gastight joint 2 is attached in the instrument connection of tested stiffening ring, in buffering gas storage cavity and the first connecting pipe, pressurization is inflated by the second connecting pipe by gas transmission equipment 13, after tensimeter 7 demonstrates and reaches test pressure in buffering gas storage cavity, close gas check valve 9, stop pressure 5 minutes, check with the instrument connection of gas-development agent to stiffening ring, as No leakage and tensimeter 7 display then represent that stiffening ring is qualified without Pressure Drop.After stiffening ring pressure testing is qualified, opens air valve 9 and can remove after making stiffening ring leakage testing device of the present utility model step-down.
The utility model does not limit to and above-mentioned embodiment; according to foregoing; according to ordinary technical knowledge and the customary means of this area; do not departing under the utility model above-mentioned basic fundamental thought prerequisite; the utility model can also make the equivalent modifications of other various ways, replacement or change, all drops among protection domain of the present utility model.
Claims (8)
1. a gastight joint, it is characterized in that: described gastight joint (2) comprises external thread leading section (201), nut pars intermedia (202) and the domatic rearward end of class (203), the domatic rearward end of described class (203) stackedly to be formed by the two or more special-shaped right cylinder with evagination arc-shaped circumference face is coaxial, the end face that adjacent two special-shaped right cylinders connect overlaps, each special-shaped cylindrical front end face external diameter is greater than rear end face external diameter, and, described gastight joint (2) is provided with and described external thread leading section (201), nut pars intermedia (202) and the coaxial gas transmission through hole (2a) of the domatic rearward end of class (203).
2. gastight joint according to claim 1, is characterized in that: described gastight joint (2) is one-body molded.
3. application rights requires a stiffening ring leakage testing device for gastight joint described in 1 or 2, it is characterized in that: described stiffening ring leakage testing device comprises gastight joint (2) described in claim 1 or 2, the first connecting pipe, buffering gas storage cavity, tensimeter (7), air valve (9), the second connecting pipe and gas transmission equipment (13), described external thread leading section (201) and the domatic rearward end of class (203) are respectively gas outlet and the air intake opening of gastight joint (2), the air intake opening of gastight joint (2) is successively by the first connecting pipe, buffering gas storage cavity, air valve (9) is connected with the gas outlet of the second connecting pipe with gas transmission equipment (13), the gas outlet of described gastight joint (2) adapts to the instrument connection of tested stiffening ring, namely the external diameter of described external thread leading section (201) adapts to the instrument connection aperture of tested stiffening ring, the test port of described tensimeter (7) is communicated with described buffering gas storage cavity.
4. stiffening ring leakage testing device according to claim 3, is characterized in that: described buffering gas storage cavity comprises the first nipple joint (5), screw thread three-way connector (6) and the second nipple joint (8); The internal diameter of described screw thread three-way connector (6) is greater than the internal diameter of described first nipple joint (5) and the second nipple joint (8), the rear end of described first nipple joint (5) and the front end of the second nipple joint (8) are threaded with two openings of screw thread three-way connector (6) respectively, the 3rd opening of the test port connecting thread three-way connector (6) of described tensimeter (7).
5. stiffening ring leakage testing device according to claim 4, is characterized in that: the first described connecting pipe comprises the first plastic flexible pipe (3) and the first gas circuit hose adapter (4); The front end of described first plastic flexible pipe (3) is connected with the air intake opening of described gastight joint (2), rear end is connected by the front end of the first gas circuit hose adapter (4) with described first nipple joint (5).
6. stiffening ring leakage testing device according to claim 5, is characterized in that: the second described connecting pipe comprises the 3rd nipple joint (10), the second gas circuit hose adapter (11) and the second plastic flexible pipe (12); The rear end of described second plastic flexible pipe (12) is connected with the gas outlet of described gas transmission equipment (13), front end is connected by the rear end of the second gas circuit hose adapter (11) with the 3rd nipple joint (10), and the front end of described 3rd nipple joint (10) is connected by the rear end of described air valve (9) with described second nipple joint (8).
7. the stiffening ring leakage testing device according to claim 3 to 6 any one, is characterized in that: described air valve (9) is needle valve.
8. the stiffening ring leakage testing device according to claim 3 to 6 any one, is characterized in that: described gas transmission equipment (13) is foot pump or inflator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488720.2U CN204085794U (en) | 2014-08-27 | 2014-08-27 | A kind of gastight joint and apply the stiffening ring leakage testing device of this gastight joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488720.2U CN204085794U (en) | 2014-08-27 | 2014-08-27 | A kind of gastight joint and apply the stiffening ring leakage testing device of this gastight joint |
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| Publication Number | Publication Date |
|---|---|
| CN204085794U true CN204085794U (en) | 2015-01-07 |
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| CN201420488720.2U Active CN204085794U (en) | 2014-08-27 | 2014-08-27 | A kind of gastight joint and apply the stiffening ring leakage testing device of this gastight joint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107399382A (en) * | 2017-05-31 | 2017-11-28 | 安徽省华启汽车零部件有限公司 | A kind of automobile frame tool for assembling frame |
-
2014
- 2014-08-27 CN CN201420488720.2U patent/CN204085794U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107399382A (en) * | 2017-05-31 | 2017-11-28 | 安徽省华启汽车零部件有限公司 | A kind of automobile frame tool for assembling frame |
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