CN105675233B - A kind of automatic-sealed performance test apparatus of welding three-way connection - Google Patents
A kind of automatic-sealed performance test apparatus of welding three-way connection Download PDFInfo
- Publication number
- CN105675233B CN105675233B CN201610191081.7A CN201610191081A CN105675233B CN 105675233 B CN105675233 B CN 105675233B CN 201610191081 A CN201610191081 A CN 201610191081A CN 105675233 B CN105675233 B CN 105675233B
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- cylinder
- end cap
- way connection
- end cover
- supervisor
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- 238000003466 welding Methods 0.000 title claims abstract description 14
- 238000011056 performance test Methods 0.000 title claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 85
- 238000012360 testing method Methods 0.000 claims abstract description 43
- 238000000429 assembly Methods 0.000 claims description 28
- 230000000712 assembly Effects 0.000 claims description 28
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2853—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipe joints or seals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of automatic-sealed performance test apparatus of welding three-way connection, it is related to sealing performance testing machine field, including a base, the delivery device of detent mechanism of the described base provided with a three-way connection, a sealing performance testing machine structure and sealing performance testing machine structure.The present invention is blocked to solve big model three-way connection using exit, internal cavities are larger, the problem of baroceptor is not easy to judge micro- leakage, propose a kind of sealing property test equipment stretch into inside three-way connection, reduce test cavity, improving baroceptor sensitivity.
Description
Technical field
The present invention relates to the automatic-sealed performance in sealing performance testing machine field, more particularly to a kind of welding three-way connection to survey
Try equipment.
Background technology
Three-way connection is commonly used in main pipeline and wanted at branched pipe, for medium shunt as pipe fitting, conduit coupling.Work
Industry is formed with the branch mouth pipe of PE (polyethylene) three-way connection typically by pipe fitting welding, and weld may be because of welding temperature
The reasons such as degree, docking out-of-flatness, there is leakage situation, and three-way connection leakage is concentrated in weld.And it is as combustion gas
The important conduit coupling of pipe network, appearance leakage have larger potential safety hazard, therefore are required before using using compressed gas as Jie
Matter carries out experiments of sealing performance.
At present, three-way connection carries out experiments of sealing performance generally use bubble method and baroceptor monitoring method, using gas
Pressure sensor monitors method, often three outlets of three-way connection is blocked, internal cavities are pressurized to pressurize after preset value, pass through
Baroceptor monitoring air pressure inside change, judges whether air pressure reduces in cavity, and whether threeway leaks.But some three are connected
Head volume is larger, if only blocked in three exits of three-way connection, internal cavities can be larger, and minute leakage is to internal gas
The influence of pressure is smaller, and baroceptor is easily judged by accident.
The content of the invention
The present invention is blocked to solve big model three-way connection using exit, and internal cavities are larger, and baroceptor is not
The problem of easily judging micro- leakage, propose that one kind stretches into inside three-way connection, reduces test cavity, improves baroceptor sensitivity
Sealing property test equipment.
To achieve these goals, the present invention uses following technical scheme：A kind of automatic-sealed of welding three-way connection
Energy test equipment, including a base, described base are provided with the detent mechanism of a three-way connection, a sealing property test
The delivery device of mechanism and sealing performance testing machine structure；
Described detent mechanism is a laterally disposed cylinder, the internal diameter of cylinder and supervisor's external diameter of three-way connection
Match somebody with somebody, offer the branch mouth pipe locating slot of a three-way connection on cylinder side wall along cylindrical direction, described branch mouth pipe locating slot is past
End face of cylinder is extended to away from delivery device one end；
Described delivery device includes limiting plate, supporting plate, sliding track mechanism and supporting plate drive mechanism, described slide rail machine
Structure is set along cylindrical direction, and described limiting plate both sides are positioned on the sliding block of sliding track mechanism, are vertically arranged with cylinder, limiting plate
Supporting plate is fixed with towards cylinder side, opposite side is connected with supporting plate drive mechanism, and supporting plate is pushed away by supporting plate drive mechanism
Cylinder interior can be extended by sending, and described supporting plate is provided with sealing performance testing machine structure；
Described sealing performance testing machine structure comprises at least upper end cap assemblies, lower end cap assemblies, pressure ring assembly and end cap and driven
Motivation structure；Described upper end cap assemblies are divided into upper end cover and connecting shaft, and described upper end cover and connecting shaft are all in cylinder and central shaft
Line overlaps, and is in " T " font along central axis section view；Described lower end cap assemblies be followed successively by from top to bottom bottom end cover, connecting portion, with
And supervisor's inner wall sealing block, bottom end cover are the cylinder with the external diameter such as upper end cover, bottom end cover lower surface passes through connecting portion and supervisor
The upper surface of inner wall sealing block is connected, and supervisor's inner wall sealing block is in integrally cylinder, and upper surface is to be responsible for inwall with threeway to match
Cambered surface, and bottom end cover with supervisor inner wall sealing block central axis overlap, be in I-shaped along central axis section view；Described master
At least one test gas channels are additionally provided with inside pipe wall sealing block；Described lower end cap assemblies along central axis run through be provided with
The through hole of the connecting shaft matching of upper end cap assemblies, connecting shaft pass through the central through hole of lower end cap assemblies from top to bottom, and are connected with one piece
Plate is fixed, and lower end cap assemblies are slideably limited between upper end cover and connecting plate；Described upper end cover and bottom end cover opposite face
On be designed with oblique outer edge, two oblique outer edges form the spacing extruding groove of sealing ring, and branch mouth Guan Mi is provided with spacing extruding groove
Seal；An annular sealing ring locating slot is offered around central axis on the upper surface of described supervisor's inner wall sealing block,
Supervisor's inner wall sealing circle is provided with sealing ring locating slot；Described supervisor's inner wall sealing block outer sheath is provided with pressure ring assembly, described
Pressure ring assembly on the downside of upside-down mounting there are some plugs to play bolt, fill in and beat bolt-through connecting plate and fixed with pressure ring assembly, connecting plate and plug
Beat bolt between be slidably connected, the plug between connecting plate and pressure ring assembly, which is beaten, is arranged with spring on bolt；Described bottom end cover group
Part is connected by some connecting rods through connecting plate with end cap drive mechanism, and end cap drive mechanism is positioned at the supporting plate of delivery device
On.
Preferably, described pressure ring assembly upper surface is to be responsible for the cambered surface that matches of inwall with threeway, in not test mode,
Pressure ring assembly upper surface is higher than supervisor's inner wall sealing block upper surface.
Preferably, the lower surface of described supporting plate is the cambered surface matched with threeway supervisor's inwall.
Preferably, the oblique outer edge on described upper end cover and bottom end cover opposite face is all 45 ° of chamfering.
Preferably, described supporting plate drive mechanism and end cap drive mechanism is all cylinder.
Therefore, the present invention has the advantages that：1st, test cavity can be reduced, improves measuring accuracy；2nd, automate
Running, testing efficiency are high；3rd, structure linkage is strong, low manufacture cost.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of another angle of the present invention.
Fig. 3 is the structural representation of sealing performance testing machine structure of the present invention.
Fig. 4 is the structural representation of another angle of sealing performance testing machine structure of the present invention.
Fig. 5 is the front view of sealing performance testing machine structure of the present invention.
Fig. 6 is the sectional view before sealing performance testing machine structure use of the present invention.
Fig. 7 is sectional view when sealing performance testing machine structure of the present invention uses.
Fig. 8 is the structural representation before use of the present invention.
Fig. 9 is the structural representation during use of the present invention.
Figure 10 is another structural representation during use of the present invention.
1：Base；2：Detent mechanism；201：Cylinder；202：Branch mouth pipe locating slot；3：Sealing performance testing machine structure；301：On
End-cap assembly；302：Lower end cap assemblies；303：Pressure ring assembly；304：End cap drive mechanism；305：It is responsible for inner wall sealing block；306：
Connecting plate；307：Upper end cover；308：Branch mouth seal of tube circle；309：Bottom end cover；310：Connecting shaft；311：It is responsible for inner wall sealing circle；
312：Spring；313：Plug plays bolt；314：Connecting rod；4：Delivery device；401：Sliding track mechanism；402：Supporting plate drive mechanism；
403：Limiting plate；404：Supporting plate；5：Three-way connection；501：Branch mouth pipe；6：Test gas channels；7：Sealing cavity；8：Welding
Place.
Embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
A kind of automatic-sealed performance test apparatus of welding three-way connection, as shown in Figure 1 and Figure 2, including a flat base
1, described base 1 is provided with detent mechanism 2, sealing performance testing machine structures 3 and sealings for a three-way connection 5
The delivery device 4 of energy mechanism for testing 3.Detent mechanism 2 is used for the placement and positioning of three-way connection 5, and sealing performance testing machine structure 3 is used
Sealing is sealed and is tested in stretching into three-way connection 5, delivery device 4 is used to sealing performance testing machine structure 3 delivering to three
The inside of pass joint 5 determines position.
Described detent mechanism 2 is a laterally disposed cylinder 201, the internal diameter of cylinder 201 and the supervisor of three-way connection 5
External diameter matches, and the side wall top side of cylinder 201 offers the branch mouth pipe locating slot 202 of a three-way connection 5 along the direction of cylinder 201,
Described branch mouth pipe locating slot 202 extends to the end face of cylinder 201 from the centre position of cylinder 201 toward away from the one end of delivery device 4, props up
The width of mouth pipe locating slot 202 matches with the external diameter of branch mouth pipe 501.
Described delivery device 4 includes limiting plate 403, supporting plate 404, sliding track mechanism 401 and supporting plate drive mechanism
402, described sliding track mechanism 401 is Liang Gen polished rods mechanism, is set along the direction of cylinder 201, the positioning of the described both sides of limiting plate 403
On the sliding block of sliding track mechanism 401, it is vertically arranged with cylinder 201, limiting plate 403 is fixed with supporting plate towards the side of cylinder 201
404, opposite side is connected with supporting plate drive mechanism 402, and described supporting plate drive mechanism 402 is cylinder, and supporting plate 404 passes through
The push of supporting plate drive mechanism 402 can be extended inside cylinder 201, and the described lower surface of supporting plate 404 is to be responsible for inwall with threeway
The cambered surface of matching, inwall veneer can be responsible for threeway and slid, supporting plate 404 is provided with sealing performance testing machine structure 3.
Described sealing performance testing machine structure 3 comprises at least upper end cap assemblies 301, lower end cap assemblies 302, pressure ring assembly
303 and end cap drive mechanism 304, as shown in Fig. 3 to Fig. 7.
Described upper end cap assemblies 301 divide for upper end cover 307 and connecting shaft 310, and described upper end cover 307 and connecting shaft 310 are all
Overlapped in cylinder and central axis, be in " T " font along central axis section view.
Described lower end cap assemblies 302 are followed successively by bottom end cover 309, connecting portion and supervisor's inner wall sealing block from top to bottom
305, bottom end cover 309 is the cylinder with the grade external diameter of upper end cover 307, and the lower surface of bottom end cover 309 passes through connecting portion and supervisor's inwall
The upper surface of sealing block 305 is connected, and overall supervisor's inner wall sealing block 305 is in cylinder, and upper surface is to be responsible for inwall with threeway
The cambered surface matched somebody with somebody, and bottom end cover 309 overlaps with supervisor's central axis of inner wall sealing block 305, is in I-shaped along central axis section view；
Two test gas channels 6 are additionally provided with described supervisor's inner wall sealing block 305, can be used in inflating, deflate, the gas with outside
Path test system is connected.
Described lower end cap assemblies 302 run through logical provided with what is matched with the connecting shaft 310 of upper end cap assemblies 301 along central axis
Hole, connecting shaft 310 pass through the central through hole of lower end cap assemblies 302 from top to bottom, and are fixed with one piece of connecting plate 306, bottom end cover group
Part 302 is slideably limited between upper end cover 307 and connecting plate 306.
The oblique outer edge of chamfering at 45 ° is designed with described upper end cover 307 and the opposite face of bottom end cover 309, two tiltedly outer
Edge forms the spacing extruding groove of sealing ring, is provided with branch mouth seal of tube circle 308 in spacing extruding groove, therefore, upper end cover 307 is with
It is in separation trend between end cap 309, the downside of lower end cap assemblies 302 is bonded with connecting plate 306；Described supervisor's inner wall sealing block
An annular sealing ring locating slot is offered around central axis on 305 upper surface, supervisor is provided with sealing ring locating slot
Inner wall sealing circle 311.
The described outer sheath of supervisor's inner wall sealing block 305 is provided with pressure ring assembly 303, the described upper surface of pressure ring assembly 303
For the cambered surface matched with threeway supervisor's inwall, in not test mode, the upper surface of pressure ring assembly 303 is higher than supervisor's inner wall sealing block
305 upper surfaces, the downside upside-down mounting of pressure ring assembly 303 have four plugs to play bolt 313, and plug plays bolt 313 and runs through connecting plate 306 and pressure ring
Component 303 is fixed, and connecting plate 306 and plug are beaten between bolt 313 and be slidably connected, the plug between connecting plate 306 and pressure ring assembly 303
Beat on bolt 313 and be arranged with the spring 312 compressed.
Described lower end cap assemblies 302 are connected by four connecting rods 314 through connecting plate 306 with end cap drive mechanism 304,
Described end cap drive mechanism 304 is twin shaft cylinder, and the cylinder body of cylinder is positioned in the supporting plate 404 of delivery device 4.
During test, referring to Fig. 6 to Figure 10, first three-way connection 5 is entered in cylinder 201 from the sidesway of branch mouth pipe locating slot 202, propped up
Mouth pipe is moved to innermost end positioning along branch mouth pipe locating slot 202；Supporting plate drive mechanism 402 pushes limiting plate 403 and moved, indirectly
Push supporting plate 404 and sealing performance testing machine structure 3 from the other end of cylinder 201 to enter in threeway supervisor, when limiting plate 403 is justified
Cylinder 201 stops, stops movement, and sealing performance testing machine structure 3 is just moved to the positive downside of branch mouth pipe.Start end cap drive mechanism
304, end cap drive mechanism 304 promotes all parts of connecting plate 306 and the upside of connecting plate 306 to be moved toward branch mouth pipe orifice direction,
Upper end cover 307 and bottom end cover 309 first stretch into branch mouth pipe orifice, and end cap drive mechanism 304 continues to push, when on pressure ring assembly 303
Rise to and be bonded with the supervisor's inwall of three-way connection 5, stop moving up, due to having compression spring between pressure ring assembly 303 and connecting plate 306
312 connections, are fixedly connected, upper end cover 307 also stops moving up again between connecting plate 306 and upper end cap assemblies 301；Bottom end cover 309
Continue to move up, extrude branch mouth seal of tube circle 308 with upper end cover 307, branch mouth seal of tube circle 308 is expanded, and is bonded with branch mouth inside pipe wall
Sealing, if processing is accurate, now, supervisor's inner wall sealing circle 311 of the upper surface of supervisor's inner wall sealing block 305 also just with threeway
The inwall of joint 5 is bonded crush seal；If being machined with deviation, upper end cover 307 and bottom end cover 309 have been bonded or can not squeezed again
Companding branch mouth seal of tube circle 308, supervisor's inner wall sealing circle 311 are not bonded also with the inwall of three-way connection 5, then end cap drive mechanism
304 be may proceed to push, and now, another is moved up for bottom end cover 309 and upper end cover 307, and connecting plate 306 also will be shifted up compression and pressure ring
Spring 312 between component 303, until the supervisor's inner wall sealing circle 311 and three-way connection of the upper surface of supervisor's inner wall sealing block 305
5 inwalls are bonded crush seal.When branch mouth seal of tube circle 308 and branch mouth inside pipe wall gluing, sealing, supervisor's inner wall sealing circle 311 and three
The inwall gluing, sealing of pass joint 5, just forms a sealing cavity 7 between two sealing rings, and the weld 8 of three-way connection 5
It is exactly on this wall of sealing cavity 7, so, just can tests gas channels by two be responsible on inner wall sealing block 305
6, toward the interior pressurization of sealing cavity 7, pressure release, experiments of sealing performance is carried out to weld 8.
Claims (5)
1. a kind of automatic-sealed performance test apparatus of welding three-way connection, including a base（1）, it is characterised in that：Described
Base（1）It is provided with a three-way connection（5）Detent mechanism（2）, a sealing performance testing machine structure（3）And sealing
Can mechanism for testing（3）Delivery device（4）；
Described detent mechanism（2）For a laterally disposed cylinder（201）, cylinder（201）Internal diameter and three-way connection（5）'s
It is responsible for external diameter matching, cylinder（201）Along cylinder in side wall（201）Direction offers a three-way connection（5）Branch mouth pipe positioning
Groove（202）, described branch mouth pipe locating slot（202）Toward away from delivery device（4）One end extends to cylinder（201）End face；
Described delivery device（4）Including limiting plate（403）, supporting plate（404）, sliding track mechanism（401）With supporting plate driving machine
Structure（402）, described sliding track mechanism（401）Along cylinder（201）Direction is set, described limiting plate（403）Both sides are positioned at cunning
Rail mechanism（401）Sliding block on, with cylinder（201）It is vertically arranged, limiting plate（403）Towards cylinder（201）Side is fixed with support
Plate（404）, opposite side and supporting plate drive mechanism（402）It is connected, supporting plate（404）Pass through supporting plate drive mechanism（402）Push away
Cylinder can be extended by sending（201）Inside, described supporting plate（404）It is provided with sealing performance testing machine structure（3）；
Described sealing performance testing machine structure（3）Including at least upper end cap assemblies（301）, lower end cap assemblies（302）, pressure ring assembly
（303）With end cap drive mechanism（304）；Described upper end cap assemblies（301）It is divided into upper end cover（307）And connecting shaft（310）, it is described
Upper end cover（307）And connecting shaft（310）All overlapped in cylinder and central axis, be in " T " font along central axis section view；It is described
Lower end cap assemblies（302）Bottom end cover is followed successively by from top to bottom（309）, connecting portion and supervisor inner wall sealing block（305）, under
End cap（309）For with upper end cover（307）Deng the cylinder of external diameter, bottom end cover（309）Lower surface passes through connecting portion and supervisor's inwall
Sealing block（305）Upper surface be connected, be responsible for inner wall sealing block（305）Overall be in cylinder, and upper surface is in being responsible for threeway
The cambered surface of wall matching, and bottom end cover（309）With being responsible for inner wall sealing block（305）Central axis overlaps, and is in along central axis section view
I-shaped；Described supervisor's inner wall sealing block（305）On be additionally provided with least one test gas channels（6）；Described lower end
Cap assemblies（302）Run through along central axis and be provided with and upper end cap assemblies（301）Connecting shaft（310）The through hole of matching, connecting shaft（310）
Lower end cap assemblies are passed through from top to bottom（302）Central through hole, and with one piece of connecting plate（306）It is fixed, lower end cap assemblies（302）
Slideably it is limited in upper end cover（307）And connecting plate（306）Between；Described upper end cover（307）And bottom end cover（309）Relatively
Oblique outer edge is designed with face, two oblique outer edges form the spacing extruding groove of sealing ring, branch mouth pipe is provided with spacing extruding groove
Sealing ring（308）；Described supervisor's inner wall sealing block（305）Upper surface on around central axis offer one it is annular close
Seal locating slot, sealing ring locating slot is interior to be provided with supervisor's inner wall sealing circle（311）；Described supervisor's inner wall sealing block（305）Outside
Side is arranged with pressure ring assembly（303）, described pressure ring assembly（303）Downside upside-down mounting has some plugs to play bolt（313）, fill in and play bolt
（313）Through connecting plate（306）With pressure ring assembly（303）It is fixed, connecting plate（306）Bolt is played with plug（313）Between slide connect
Connect, connecting plate（306）And pressure ring assembly（303）Between plug play bolt（313）On be arranged with spring（312）；Described lower end
Cap assemblies（302）Pass through some connecting rods（314）Through connecting plate（306）With end cap drive mechanism（304）It is connected, end cap driving machine
Structure（304）It is positioned at delivery device（4）Supporting plate（404）On.
A kind of 2. automatic-sealed performance test apparatus of welding three-way connection according to claim 1, it is characterised in that：Institute
The pressure ring assembly stated（303）Upper surface is the cambered surface matched with threeway supervisor's inwall, in not test mode, pressure ring assembly（303）
Upper surface is higher than supervisor's inner wall sealing block（305）Upper surface.
A kind of 3. automatic-sealed performance test apparatus of welding three-way connection according to claim 1, it is characterised in that：Institute
The supporting plate stated（404）Lower surface be to be responsible for the cambered surface that matches of inwall with threeway.
A kind of 4. automatic-sealed performance test apparatus of welding three-way connection according to claim 1, it is characterised in that：Institute
The upper end cover stated（307）And bottom end cover（309）Oblique outer edge on opposite face is all 45 ° of chamfering.
A kind of 5. automatic-sealed performance test of welding three-way connection according to any claim in Claims 1-4
Equipment, it is characterised in that：Described supporting plate drive mechanism（402）With end cap drive mechanism（304）All it is cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610191081.7A CN105675233B (en) | 2016-03-30 | 2016-03-30 | A kind of automatic-sealed performance test apparatus of welding three-way connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610191081.7A CN105675233B (en) | 2016-03-30 | 2016-03-30 | A kind of automatic-sealed performance test apparatus of welding three-way connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105675233A CN105675233A (en) | 2016-06-15 |
| CN105675233B true CN105675233B (en) | 2017-12-19 |
Family
ID=56224718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610191081.7A Expired - Fee Related CN105675233B (en) | 2016-03-30 | 2016-03-30 | A kind of automatic-sealed performance test apparatus of welding three-way connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105675233B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5076095A (en) * | 1990-05-25 | 1991-12-31 | Erhardt Rick D | Plumbing leak testing apparatus |
| FR2681124A1 (en) * | 1991-09-06 | 1993-03-12 | Oster Jean Pierre | Device for detecting leaks in buried structures for storing or conveying sulphuric acid by pipeline |
| JP3344046B2 (en) * | 1993-12-22 | 2002-11-11 | 豊田合成株式会社 | Leak amount detection device |
| US7207384B2 (en) * | 2004-03-12 | 2007-04-24 | Stinger Wellhead Protection, Inc. | Wellhead and control stack pressure test plug tool |
| CN203287165U (en) * | 2013-06-08 | 2013-11-13 | 泰州市汇恒制冷设备有限公司 | Leakage detection device for three-way |
| CN204575253U (en) * | 2015-03-12 | 2015-08-19 | 浙江波士特机械有限公司 | Joint air tightness test automatic connector |
| CN204964123U (en) * | 2015-07-24 | 2016-01-13 | 杭州欣卓科技有限公司 | PE tee bend test machine |
| CN205426450U (en) * | 2016-03-30 | 2016-08-03 | 王国良 | Butt fusion three way connection's self sealing capability test equipment |
-
2016
- 2016-03-30 CN CN201610191081.7A patent/CN105675233B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105675233A (en) | 2016-06-15 |
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Effective date of registration: 20181213 Address after: 214500 No. 23 Dajue North Road, Xieqiao Town, Jingjiang City, Taizhou City, Jiangsu Province Patentee after: Jingjiang Nanzheng Machinery Technology Co., Ltd. Address before: 311835 2 unit 12, hardware town, Dian Kou Town, Zhuji, Shaoxing, Zhejiang Patentee before: Wang Guoliang |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171219 Termination date: 20190330 |