CN208474706U - A kind of stainless steel tube air seal test quick coupling - Google Patents
A kind of stainless steel tube air seal test quick coupling Download PDFInfo
- Publication number
- CN208474706U CN208474706U CN201820960161.9U CN201820960161U CN208474706U CN 208474706 U CN208474706 U CN 208474706U CN 201820960161 U CN201820960161 U CN 201820960161U CN 208474706 U CN208474706 U CN 208474706U
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- joint body
- sealing ring
- stainless steel
- screw thread
- steel tube
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Abstract
The utility model provides a kind of stainless steel tube air seal test quick coupling, it includes the first joint body, the second joint body, first joint body is cylindrical, first joint body one end end is equipped with mounting groove, first joint body other end outer peripheral surface is equipped with installation position, first joint body end is equipped with air-pressure chamber, and the first joint body is equipped with instrument connection；Second joint body is cylindrical, and second joint body one end is equipped with stop collar, and intubation guide groove is equipped at stop collar center；Second joint body other end inner sidewall is equipped with connection screw thread, and connection screw thread is meshed with external screw thread, and sealing ring and water conservancy diversion plug are successively set in the second joint body, and sealing ring end and stop collar inside side walls contradict to form sealing.Using after this programme good seal performance, facilitate the timely pressuring machine pressure release in sealing ring outer.
Description
Technical field
The utility model relates to quick coupling device technical field, a kind of stainless steel tube underwater airtightness testing is referred in particular to
Sealing device.
Background technique
It needs to carry out underwater air-tight test in stainless steel welded pipe manufacturing field, stainless steel welded pipe production process to come pair
Production joint carries out leak detection test.Traditional airtight test machine uses end part seal mode, and both ends sealing ring directly withstands stainless
Steel pipe generates the sealing that pretightning force realizes sealing ring and stainless steel tube end face, test pressure 1.5MPa or less.But in recent years, with
For stainless steel welded pipe in the gradually application of higher-end businesses, market proposes higher test pressure requirement to high-end stainless steel welded pipe,
Test pressure is greater than 2.5MPa.Increase test pressure, takes traditional sealing means, both ends push pipe pressure needs to increase, not only
Sealing ring is easily damaged, and the easy bending of tube capacity, and existing most of high pressure underwater airtightness testing machines take pipe end circumferential seal
Sealing means.But the circumferential seal apparatus structure used on existing market is complicated, need to add bypass gases and circumferentially press to sealing ring
Power, the accuracy of manufacture and higher cost.
Summary of the invention
The purpose of the utility model is to overcome the deficiencies in the prior art, provide it is a kind of using the sealing ring specially designed and
Connector realizes that sealing ring and pipe outer wall carry out self-locking package, realizes the stainless steel tube air seal test quick coupling of the purpose of sealing.
To achieve the above object, technical solution provided by the utility model are as follows: a kind of stainless steel tube air seal test is quick
Connector, it includes the first joint body, the second joint body, and the first joint body is cylindrical, first joint body one end
End is equipped with the mounting groove of indent, and the first joint body other end outer peripheral surface is equipped with stair-stepping installation position, sets on installation position
There is external screw thread, the first joint body end of installation position one end is equipped with the air-pressure chamber of indent, the first connector sheet of air-pressure chamber side
Body is equipped with inside and outside perforative instrument connection, and instrument connection is connect with external testing pipe；Second joint body is cylindrical, the second connector
Ontology one end end forms stop collar to central reduction, is equipped with inner small and outside big tubaeform intubation guide groove at stop collar center,
Intubation smaller one end of guide groove is connect with the second joint body inner cavity, and larger one end is pipeline insert port；Second joint body is another
Inner sidewall is held to be equipped with connection screw thread, connection screw thread is meshed with external screw thread, is successively set with sealing ring in the second joint body
With water conservancy diversion plug, sealing ring end and stop collar inside side walls contradict to form sealing；Sealing ring, water conservancy diversion after suit beyond the Great Wall circumferential surface with
Filling channel is reserved between second joint body internal chamber wall, between water conservancy diversion plug and the first joint body end of air-pressure chamber one end
It is reserved with airflow channel, airflow channel is connect with filling channel；It seals and is equipped with testing tube slot at circle center, at water conservancy diversion plug center
Equipped with diversion trench, testing tube slot one end with intubation guide groove connect, the other end is connect with diversion trench one end, the diversion trench other end and
Air-pressure chamber connection.
The sealing ring makes to be formed using rubber material.
It is inwardly recessed to form extruding slot in the middle part of the sealing ring outer peripheral surface.
The testing tube slot internal diameter is equal to the internal diameter of intubation smaller one end of guide groove, and is greater than the internal diameter of diversion trench.
Utility model has the advantages that one, using the sealing ring of special designing, pass through Computer Simulation technology mould
It is quasi-, the most suitable thickness of design sealing element and outer ring curvature, so that sealing element, when receiving circumferential direction and axial compressive force, deformation is first
Occur to guarantee at middle part without there is gauffer or ripple the seamless applying of sealing ring and steel pipe walls.The sealing element form and lip
Sealing ring principle is similar, but has bigger contact area compared to lip seal circle, guarantees the repeated disassembled and assembled of stainless steel tube test
Sealing performance is still able to maintain having local damage.Two, using the water conservancy diversion plug specially designed, pipe both ends limit had both been can be used as
Position is used, while the diversion trench designed is acted on as sealing element air-flow conducting, facilitates the timely pressuring machine pressure release in sealing ring outer.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Specific embodiment
Below with reference to all attached drawings, the utility model is described in further detail, the preferred embodiment of the utility model are as follows: ginseng
See attached drawing 1, a kind of stainless steel tube air seal test quick coupling described in the present embodiment includes the first joint body 1, second connects
Head ontology 2, the first joint body 1 is cylindrical, and 1 one end end of the first joint body is equipped with the mounting groove of indent, the first connector
1 other end outer peripheral surface of ontology is equipped with stair-stepping installation position, and installation position is equipped with external screw thread, first connector of installation position one end
1 end of ontology is equipped with the air-pressure chamber 3 of indent, and the first joint body 1 of 3 side of air-pressure chamber is equipped with inside and outside perforative instrument connection 4,
Instrument connection 4 is connect with external testing pipe；Second joint body 2 is cylindrical, and 2 one end end of the second joint body is to central reduction
Stop collar is formed, is equipped with inner small and outside big tubaeform intubation guide groove 5 at stop collar center, intubation smaller one end of guide groove 5 and the
The connection of two joint bodies, 2 inner cavity, larger one end are pipeline insert port；Second joint body, 2 other end inner sidewall is equipped with connection
Screw thread, connection screw thread are meshed with external screw thread, and sealing ring 6 and water conservancy diversion plug 7, sealing ring 6 are successively set in the second joint body 2
End and stop collar inside side walls contradict to form sealing, and sealing ring 6 makes to be formed using rubber material, in 6 outer peripheral surface of sealing ring
Portion is inwardly recessed to form extruding slot；It is pre- between 2 internal chamber wall of sealing ring 6,7 outer peripheral surface of water conservancy diversion plug and the second joint body after suit
There are filling channel, airflow channel is reserved between 1 end of the first joint body of 3 one end of water conservancy diversion plug 7 and air-pressure chamber, air-flow is logical
Road is connect with filling channel；At 6 center of sealing ring be equipped with testing tube slot 9,9 internal diameter of testing tube slot be equal to intubation guide groove 5 compared with
The internal diameter of small one end, and be greater than the internal diameter of diversion trench 8, is equipped with diversion trench 8 at 7 center of water conservancy diversion plug, 9 one end of testing tube slot and inserts
Pipe guide groove 5 connects, and the other end is connect with 8 one end of diversion trench, and 8 other end of diversion trench is connect with air-pressure chamber 3.
When it is implemented, stainless steel tube is placed in whole quick coupling, with 7 distance 5mm of water conservancy diversion plug or so.Adjustment first connects
The elastic with stainless steel tube of sealing ring 6 is adjusted in head ontology 1 and the second joint body 2, guarantee that stainless steel tube passes in and out freely
Sealing ring 3, and cannot loosen very much.When pressurization, a part of gas is entered by 7 interstitial hole of water conservancy diversion plug by developmental tube, a part
Gas enters 6 outer ring of sealing ring by water conservancy diversion plug 7.With the addition of gas, into 6 outer ring of sealing ring gas to sealing ring 6
Pressure effect holds sealing ring 6 closely with stainless steel tube to sealing, pressure is bigger, seals.When pressure release, interior gas is managed
Body and 6 outer ring gas of sealing ring are discharged from interface simultaneously, and after pressure loses, sealing ring 6 and stainless steel tube pressuring action disappear, real
Existing pressure release, stainless steel tube can easily be taken out out of connector.This quick coupling device is due to sealing ring 6 and stainless steel tube contact area
It is larger, so that the repeated disassembled and assembled in stainless steel tube test has caused local damage to be also still able to maintain sealing performance.
Advantage of this embodiment is that: one, using the sealing ring of special designing, pass through Computer Simulation technology mould
It is quasi-, the most suitable thickness of design sealing element and outer ring curvature, so that sealing element, when receiving circumferential direction and axial compressive force, deformation is first
Occur to guarantee at middle part without there is gauffer or ripple the seamless applying of sealing ring and steel pipe walls.The sealing element form and lip
Sealing ring principle is similar, but has bigger contact area compared to lip seal circle, guarantees the repeated disassembled and assembled of stainless steel tube test
Sealing performance is still able to maintain having local damage.Two, using the water conservancy diversion plug specially designed, pipe both ends limit had both been can be used as
Position is used, while the diversion trench designed is acted on as sealing element air-flow conducting, facilitates the timely pressuring machine pressure release in sealing ring outer.
The embodiment of the above is only the preferred embodiment of the utility model, and the reality of the utility model is not limited with this
It applies range, therefore all shapes according to the utility model, changes made by principle, should all cover in the protection scope of the utility model
It is interior.
Claims (4)
1. a kind of stainless steel tube air seal test quick coupling, it includes the first joint body (1), the second joint body (2),
Be characterized in that: the first joint body (1) is cylindrical, mounting groove of the first joint body (1) one end end equipped with indent, and first
Joint body (1) other end outer peripheral surface is equipped with stair-stepping installation position, and installation position is equipped with external screw thread, and the of installation position one end
One joint body (1) end is equipped with the air-pressure chamber (3) of indent, and first joint body (1) of air-pressure chamber (3) side is equipped with inside and outside
Perforative instrument connection (4), instrument connection (4) are connect with external testing pipe；Second joint body (2) is cylindrical, the second connector sheet
Body (2) one end end forms stop collar to central reduction, is equipped with inner small and outside big tubaeform intubation guide groove at stop collar center
(5), intubation guide groove (5) smaller one end is connect with the second joint body (2) inner cavity, and larger one end is pipeline insert port；Second connects
Head ontology (2) other end inner sidewall is equipped with connection screw thread, and connection screw thread is meshed with external screw thread, in the second joint body (2)
It is successively set with sealing ring (6) and water conservancy diversion plug (7), sealing ring (6) end and stop collar inside side walls contradict to form sealing；Suit
Filling channel, water conservancy diversion plug are reserved between rear sealing ring (6), water conservancy diversion plug (7) outer peripheral surface and the second joint body (2) internal chamber wall
(7) airflow channel, airflow channel and filling channel are reserved between the first joint body (1) end of air-pressure chamber (3) one end
Connection；Testing tube slot (9) are equipped at sealing ring (6) center, are equipped with diversion trench (8) at water conservancy diversion plug (7) center, testing tube slot
(9) one end is connect with intubation guide groove (5), and the other end is connect with diversion trench (8) one end, diversion trench (8) other end and air-pressure chamber (3)
Connection.
2. a kind of stainless steel tube air seal test quick coupling according to claim 1, it is characterised in that: sealing ring (6) is adopted
It makes to be formed of rubber material.
3. a kind of stainless steel tube air seal test quick coupling according to claim 1, it is characterised in that: sealing ring (6) is outside
All Middle faces are inwardly recessed to form extruding slot.
4. a kind of stainless steel tube air seal test quick coupling according to claim 1, it is characterised in that: testing tube slot
(9) internal diameter is equal to the internal diameter of intubation guide groove (5) smaller one end, and is greater than the internal diameter of diversion trench (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820960161.9U CN208474706U (en) | 2018-06-21 | 2018-06-21 | A kind of stainless steel tube air seal test quick coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820960161.9U CN208474706U (en) | 2018-06-21 | 2018-06-21 | A kind of stainless steel tube air seal test quick coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208474706U true CN208474706U (en) | 2019-02-05 |
Family
ID=65214358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820960161.9U Active CN208474706U (en) | 2018-06-21 | 2018-06-21 | A kind of stainless steel tube air seal test quick coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208474706U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810749A (en) * | 2020-09-15 | 2020-10-23 | 山东龙口油管有限公司 | Automobile oil pipe connecting device |
| CN115978324A (en) * | 2023-03-21 | 2023-04-18 | 江苏三米科思半导体设备有限公司 | Pipeline sealing joint and high-precision XY air floatation movement system and method |
-
2018
- 2018-06-21 CN CN201820960161.9U patent/CN208474706U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810749A (en) * | 2020-09-15 | 2020-10-23 | 山东龙口油管有限公司 | Automobile oil pipe connecting device |
| CN115978324A (en) * | 2023-03-21 | 2023-04-18 | 江苏三米科思半导体设备有限公司 | Pipeline sealing joint and high-precision XY air floatation movement system and method |
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| GR01 | Patent grant |