CN105241613B - A kind of self expansion airtight fixture - Google Patents
A kind of self expansion airtight fixture Download PDFInfo
- Publication number
- CN105241613B CN105241613B CN201510694488.7A CN201510694488A CN105241613B CN 105241613 B CN105241613 B CN 105241613B CN 201510694488 A CN201510694488 A CN 201510694488A CN 105241613 B CN105241613 B CN 105241613B
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- plunger
- main body
- pressing plate
- pipe
- mouth
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Abstract
The invention discloses a kind of self expansion airtight fixture, including clamp, the main body being arranged in caliper jaw, it is characterized in that the jaw front end of clamp sets bayonet socket, tested pipeline pressing plate installing space is left between main body and bayonet socket, two plunger chambers are set in main body, the tested pipeline pressing plate installing space of plunger chamber opening direction, plunger is set in the plunger chamber, plunger can move reciprocatingly in chamber, plunger is inner to set plunger spring between plunger chamber, main body is stretched out in plunger outer end, sealing is formed outside plunger, the plunger inner space connection of two plunger chambers in the main body.The advantage of the invention is that automatic-sealed can be realized, the process velocity of product is improved, ensures the uniformity of Product checking, while avoids the industrial accident in production from occurring.
Description
Technical field
The present invention relates to the detection field of various pipeline leakages, specifically a kind of pipeline, which utilizes, detects medium（Gas）
Pressure makes connection frock produce the self expansion airtight fixture sealed.
Background technology
The manufacturing enterprise of pipeline is not reliable to the joint of the leak detection connecting pipeline of axial seal mat structure at present
Scheme, mainly by the tool structure of complexity, force external force, connection position produces sealing after being squeezed, many disadvantages so be present
End, such as：1. product by external force it is excessive and deform so failure, influence product quality；2. because mechanism is excessively multiple during Product processing
It is miscellaneous, assembly difficulty increase, thus production efficiency is not high；3. people's security reliability is poor during Product processing.
The content of the invention
It is an object of the present invention to provide a kind of self expansion airtight fixture, realizes to utilize and detects medium（Mainly gas
Body）Pressure, promote plunger to compress sealing gasket, realize the natural sealing at connection position, simplify mounting means, improve processing speed
Degree, ensure that product is not influenceed by caused by strong external force.
To achieve these goals, the technical scheme is that：A kind of self expansion airtight fixture, including clamp, set
Main body in caliper jaw, it is characterised in that the jaw front end of clamp sets bayonet socket, and measured tube is left between main body and bayonet socket
Road pressing plate installing space, main body is interior to set two plunger chambers, and the plunger chamber opening installs sky towards tested pipeline pressing plate
Between, plunger is set in the plunger chamber, and plunger can be moved reciprocatingly in chamber, and plunger is inner to be set between plunger chamber
Main body is stretched out in plunger spring, plunger outer end, forms sealing outside plunger, the plunger inner space of two plunger chambers in the main body
Connection.
The plunger outer end sets depressed part, and through hole is set in the plunger, and the through hole prolongs from the depressed part
Plunger the inner is extended, is tested the mouth of pipe that pipeline pressing plate is provided with two protrusions, one of mouth of pipe connects air inlet pipe, another pipe
Mouth connection escape pipe, the mouth of pipe of described two protrusions set sealing gasket outside, and the mouth of pipe of described two protrusions stretches into the depression of plunger
In portion, and connected with the through hole in the plunger, the plunger outer end contacts with the sealing gasket outside the protrusion mouth of pipe.
In assembling stage, clamp front end bayonet socket is opened, by the protrusion mouth of pipe on the tested pipeline pressing plate in plunger extension edge
Pressing plate is inserted in, is tested pressing plate and plunger contact, overcomes the active force of plunger spring so that plunger is moved up, and pressing plate is pushed into clamp
In bayonet socket, clamp are restored and closed, locked frock and pressing plate.
In airtight test phase, the gas entered from air inlet pipe enters plunger inner space, the pressure and spring force one
Rise and thrust is produced to plunger base, acted on eventually through plunger on the sealing gasket of pressing plate, the deformation of sealing gasket is produced, in air pressure
Reach the sealing that the position is produced after test pressure.
The operating method of the self expansion airtight fixture, it is characterised in that the operating method includes assembling stage and airtight survey
In the examination stage, in assembling stage, clamp front end bayonet socket is opened, by the protrusion mouth of pipe on the tested pipeline pressing plate in plunger extension edge
Pressing plate is inserted in, the tested convex outlet spout peripheral hardware of pipeline pressing plate puts sealing gasket, and plunger front end contacts with the sealing gasket, overcomes plunger
The active force of spring so that plunger is moved up, and pressing plate is pushed into clamp bayonet socket, restores closure, locked frock and pressing plate；
In airtight test phase, gas is passed through and is arranged in plunger by the protrusion mouth of pipe on tested pipeline pressing plate
Through hole enters plunger chamber, and gas pressure and plunger spring elastic force one react on plunger the inner, by plunger by this active force
On the sealing gasket for passing to plunger front end, sealing gasket is deformed, when gas pressure reaches detection pressure, the deformation of sealing gasket
It is enough between sealing clamp and chamber, you can carry out leak detection work.
The present invention is by pressure caused by the examined gas of frock itself, automatically generating to the close of pipeline detection needs
Envelope, raising Product checking effect is reached and has simplified the internal structure of an organization, cost-effective purpose.The advantage of the invention is that it can realize automatic
Sealing, improves the process velocity of product, ensures the uniformity of Product checking, while avoids the industrial accident in production from occurring.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the action schematic diagram of the present invention.
Embodiment
As illustrated, a kind of self expansion airtight fixture, including clamp 6, the main body 1 being arranged in caliper jaw, its feature
It is the jaw end set bayonet socket 2 of clamp, leaves tested pipeline pressing plate installing space 3 between main body 1 and bayonet socket 2, in main body 1
Two plunger chambers are set, and towards tested pipeline pressing plate installing space 3, the plunger chamber is interior to be set the plunger chamber opening
Plunger 4, plunger 4 can move reciprocatingly in chamber, setting plunger spring 5 between the inner of plunger 4 and plunger chamber, outside plunger 4
Main body 1 is stretched out at end, and the overcoat O-ring 7 of plunger 4, which is formed, to be sealed, and the inner space of plunger 4 of two plunger chambers connects in the main body 1
It is logical, and be connected with air inlet pipe.
The outer end of plunger 4 sets depressed part, and through hole 8 is set in the plunger 4, and the through hole 8 is from the depression
Portion extends to plunger the inner, is tested the mouth of pipe 10 that pipeline pressing plate 9 is provided with two protrusions, and one of mouth of pipe connects air inlet pipe,
Another mouth of pipe connects escape pipe, and sealing gasket 11, the mouth of pipe 10 of described two protrusions are set outside the mouth of pipe 10 of described two protrusions
Stretch into the depressed part of plunger, and connected with the through hole 8 in the plunger, the outer end of plunger 4 and the sealing outside the protrusion mouth of pipe
Pad 11 contacts.
According to a particular embodiment of the invention, the upper end of main body 1 sets a projection, described raised provided with two fixed branch
Consign hole and two clamp spring base holes, for connection clamp 6 and clamp spring 13, the clamp include being arranged on 1 liang of main body
Two calipers of side, main body 1 are connected by the pin 12 in fixed bearing pin-and-hole with being arranged on the clamp caliper of the both sides of main body 1, and
Clamp spring 13 is set between main body 1 and clamp caliper.
According to a particular embodiment of the invention, the middle part of the clamp is rotatablely connected with main body 1, and the end of clamp 8 is provided with
Bayonet socket 2, for locked pipeline pressing plate, the root of clamp is then used to hold and operate folding.
According to a particular embodiment of the invention, the inside of main body 1 loads plunger 4, and plunger 4 is inner to be lined between plunger chamber
Plunger spring 5, plunger 2 puts O-ring 7 outside, and is matched with plunger chamber internal diameter, forms sealing, and main body 1 is stretched out in the outer end of plunger 4.
Because plunger is active, O-ring is installed additional on the outside of plunger in the design, to keep the sealing of chamber, so that inspection
Survey the stabilization of air pressure.
According to a particular embodiment of the invention, the outer diameter of the plunger is less than inner diameter, is formed in plunger side
Limited step, the front end of main body 1 install the cover plate 14 being engaged with the limited step additional, to cover main body 1, form conducting chamber
Room, cover plate 14 are connected provided with flat mouth screw with main body.
Acted on by plunger spring and capping, plunger is upper under non-detection state, and clamp normality position is then to be locked
Position.
When being detected without pipeline, clamp 6 are acted on by the elastic force of clamp spring 13, and automatic closure, plunger 4 is by the bullet of plunger spring 5
Power acts on, limited step top to cover plate 14, and fore-end stretches out cover plate 14.
The self expansion airtight fixture is being matched somebody with somebody using process packing and is being inflated two processes, and assembling stage, hand pinches the rear portion of clamp 6,
Its pin connection is rotated, opens the front end bayonet socket of clamp 6, plunger extension is inserted in along the protrusion mouth of pipe on tested pipeline pressing plate
Pressing plate so that the protrusion mouth of pipe enters plunger depressed part, then overcomes the active force of plunger spring 5 so that plunger 4 moves up, will
Pressing plate is pushed into the bayonet socket of clamp 6, restores closure, locked frock and pressing plate.
In airtight test phase, gas enters from air inlet pipe, and passes through the protrusion mouth of pipe being tested on pipeline pressing plate successively, sets
Put the through hole in plunger and enter plunger chamber, O-ring 7 closed chamber, gas pressure and the elastic force one of plunger spring 5 act as
For the back of plunger 2, and this active force passed on the sealing gasket of the front end of plunger 4, sealing gasket is deformed, and works as gas pressure
When reaching detection pressure, the deformation of sealing gasket is enough between sealing clamp and chamber, you can carries out leak detection work.
According to a particular embodiment of the invention, product pressing plate is in duplex interface structure, and the action in right side position and left side is complete
It is complete consistent, it is not repeated to describe.
Claims (3)
1. a kind of self expansion airtight fixture, including clamp, the main body being arranged in caliper jaw, it is characterised in that the jaw of clamp
Front end sets bayonet socket, and tested pipeline pressing plate installing space is left between main body and bayonet socket, two plunger chambers, institute are set in main body
Plunger chamber opening is stated towards tested pipeline pressing plate installing space, the plunger chamber is interior to set plunger, and plunger can in chamber
Move reciprocatingly, plunger is inner to set plunger spring between plunger chamber, and plunger outer end is stretched out main body, formed outside plunger close
To seal, the plunger inner space connection of two plunger chambers, the plunger outer end set depressed part in the main body, and in the post
Interior setting through hole is filled in, the through hole extends to plunger the inner from the depressed part, is tested what pipeline pressing plate protruded provided with two
The mouth of pipe, one of mouth of pipe connect air inlet pipe, another mouth of pipe connection escape pipe, and the mouth of pipe of described two protrusions sets sealing outside
Pad, the mouth of pipe of described two protrusions is stretched into the depressed part of plunger, and is connected with the through hole in the plunger, the plunger outer end
Contacted with the sealing gasket outside the protrusion mouth of pipe.
2. self expansion airtight fixture according to claim 1, it is characterised in that：The outer diameter of the plunger is less than the inner
Diameter, limited step is formed in plunger side, the front end of main body installs the cover plate being engaged with the limited step additional, to cover master
Body, cover plate are connected provided with flat mouth screw with main body.
3. self expansion airtight fixture according to claim 1, it is characterised in that it is gentle that its operating method includes assembling stage
The density test stage；
In assembling stage, clamp front end bayonet socket is opened, by the protrusion mouthpiece cover on the tested pipeline pressing plate in plunger extension edge
Enter pressing plate, the tested convex outlet spout peripheral hardware of pipeline pressing plate puts sealing gasket, and plunger front end contacts with the sealing gasket, overcomes plunger bullet
The active force of spring so that plunger is moved up, and pressing plate is pushed into clamp bayonet socket, restores closure, locked frock and pressing plate；
In airtight test phase, gas passes through the through hole being arranged in plunger by the protrusion mouth of pipe on tested pipeline pressing plate
Into plunger chamber, gas pressure and plunger spring elastic force one react on plunger the inner, are transmitted this active force by plunger
On sealing gasket to plunger front end, sealing gasket is deformed, and when gas pressure reaches detection pressure, the deformation of sealing gasket is enough
Between sealing clamp and chamber, you can carry out leak detection work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510694488.7A CN105241613B (en) | 2015-10-23 | 2015-10-23 | A kind of self expansion airtight fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510694488.7A CN105241613B (en) | 2015-10-23 | 2015-10-23 | A kind of self expansion airtight fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105241613A CN105241613A (en) | 2016-01-13 |
| CN105241613B true CN105241613B (en) | 2017-11-28 |
Family
ID=55039337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510694488.7A Active CN105241613B (en) | 2015-10-23 | 2015-10-23 | A kind of self expansion airtight fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105241613B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107263356A (en) * | 2017-07-03 | 2017-10-20 | 博耐尔汽车电气系统有限公司 | A kind of heat exchanger leak detection fixture and its application method |
| CN108709692B (en) * | 2018-07-27 | 2024-04-12 | 威海邦德散热系统股份有限公司 | A aerating device for pipeline gas tightness detects |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19739845C1 (en) * | 1997-09-11 | 1999-02-11 | Kraewer Hans Peter | Gas supply line testing device |
| US8151628B1 (en) * | 2008-06-12 | 2012-04-10 | Airmo, Inc. | Hydrostatic test tool and method of use |
| CN101650250B (en) * | 2009-09-02 | 2011-07-20 | 上海理工大学 | Hot water pressure test leak-detecting device of heat exchanger |
| CN202886063U (en) * | 2012-06-28 | 2013-04-17 | 双威欣龙(安徽)液压有限公司 | Cleaning and testing device for multi-station hydraulic flexible pipe assembly |
| CN102829920B (en) * | 2012-08-21 | 2015-04-15 | 芜湖通和汽车管路系统有限公司 | Pipe fitting leakage sealing and detecting device |
| CN102996955A (en) * | 2012-12-07 | 2013-03-27 | 天津鹏翎胶管股份有限公司 | Rapid connector for gas tight test |
| CN103216696A (en) * | 2013-04-12 | 2013-07-24 | 柳州力通车用空调有限公司 | Air tightness detection clamp |
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2015
- 2015-10-23 CN CN201510694488.7A patent/CN105241613B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105241613A (en) | 2016-01-13 |
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| CB02 | Change of applicant information |
Address after: 201204 Shanghai city Pudong New Area Lianxi Road No. 1188 Applicant after: Shanghai automobile air conditioner fittings Limited by Share Ltd Address before: 201204 Shanghai city Pudong New Area Lianxi Road No. 1188 Applicant before: Shanghai Automobile Air-Conditioner Accessory Co., Ltd. |
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