CN109505978A - A kind of compensation interior swollen plugging mechanism of radial compliance - Google Patents
A kind of compensation interior swollen plugging mechanism of radial compliance Download PDFInfo
- Publication number
- CN109505978A CN109505978A CN201811636489.6A CN201811636489A CN109505978A CN 109505978 A CN109505978 A CN 109505978A CN 201811636489 A CN201811636489 A CN 201811636489A CN 109505978 A CN109505978 A CN 109505978A
- Authority
- CN
- China
- Prior art keywords
- interior
- swollen
- compensation
- interior swollen
- connecting plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 20
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000008961 swelling Effects 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/068—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing swelling under working conditions
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Valves (AREA)
Abstract
A kind of compensation interior swollen plugging mechanism of radial compliance, including cylinder, the piston rod of the cylinder are connected with a connecting plate；The connecting plate lower part is equipped with several compensation holes being circularly and evenly distributed；The connecting plate lower part is equipped with an air feeding in center hole, and air feeding in center hole is enclosed in interior by compensation hole；Swollen pedestal in one has been bolted in the connecting plate；The interior swollen pedestal is equipped with several screw holes corresponding with compensation hole site, and the spiral shell body end of bolt passes through compensation hole and is bolted in corresponding screw hole；A spring is arranged with outside the spiral shell body of the bolt, both ends of the spring is contacted at respectively on connecting plate and interior swollen pedestal, and the head of bolt is stuck on the left of connecting plate on side wall.The compensation interior swollen plugging mechanism of radial compliance of the invention can make itself have certain flexibility, to realize radial compensation, even if deviation occurs in the position of inner hole of workpiece, also can be fast and accurately inserted into inner hole of workpiece by the effect of compensation guiding.
Description
Technical field
The present invention relates to a kind of plugging mechanism, especially a kind of compensation interior swollen plugging mechanism of radial compliance.
Background technique
Plugging mechanism is a kind of device for Work piece sealing detection, and in practical applications, the inner hole of workpiece is due to setting
The factors such as meter, processing, assembly will cause position deviation, and plugging mechanism is caused not to be inserted into inner hole of workpiece fast and accurately,
It influences to block efficiency, when serious, leakproofness when resulting even in closure is unable to get guarantee, influences actually detected quality, deposits
In certain detection hidden danger.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of compensation interior swollen plugging mechanisms of radial compliance, it can make certainly
Body has certain flexibility, to realize radial compensation, even if deviation occurs in the position of inner hole of workpiece, can also be led by compensation
To effect be fast and accurately inserted into inner hole of workpiece.
The present invention solves the technical solution that above-mentioned technical problem uses are as follows:
The present invention discloses a kind of compensation interior swollen plugging mechanism of radial compliance, including cylinder, it is characterised in that: the work of the cylinder
Stopper rod is connected with a connecting plate；The connecting plate lower part is equipped with several compensation holes being circularly and evenly distributed；Under the connecting plate
Portion is equipped with an air feeding in center hole, and air feeding in center hole is enclosed in interior by compensation hole；The connecting plate has been bolted swollen in one
Pedestal；The interior swollen pedestal is equipped with several screw holes corresponding with compensation hole site, and the spiral shell body end of bolt passes through compensation hole
And it is bolted in corresponding screw hole；Be arranged with a spring outside the spiral shell body of the bolt, both ends of the spring contact at respectively connecting plate with
On interior swollen pedestal, the head of bolt is stuck on the left of connecting plate on side wall；The spiral shell body diameter of the bolt is less than compensation bore dia, spiral shell
There is compensation gap between the spiral shell body outer wall and compensation hole inner wall of bolt；The interior swollen chassis left side side wall center is equipped with an air inlet pipe
Road, interior swollen base right side side wall center are equipped with the bolt apertures to connect with air inlet pipeline；The bolt apertures are bolted with swelling shaft in one
Pipe, interior swelling shaft pipe right end are bolted with a locking cap；It is arranged with swollen valve body in one outside the interior swollen pedestal, is arranged with outside interior swelling shaft pipe
Swollen ejector sleeve in one, interior swollen valve body right side fit with interior swollen ejector sleeve left side；It is equipped between the interior swollen ejector sleeve and locking cap
Swollen plug in one, interior swollen plug are rubber material；The interior swollen valve body can drive interior swollen ejector sleeve to move to right internal swollen plug and be squeezed
Pressure.
The interior swollen pedestal is equipped with the first sliding step to match with interior swollen valve body；It is set on the interior swollen base outer wall
There is an enterprising stomata；First sliding step left side wall face is equipped with the venthole to connect with enterprising stomata, and venthole is right
Stomidium mouth is by interior swollen valve outer wall plug for seal；The interior swelling shaft pipe is externally provided with a position limiting convex ring；The position limiting convex ring with it is interior swollen
Central siphon outer wall is formed with the second sliding step to match with interior swollen ejector sleeve；The interior swollen valve body right end port is equipped with one and limit
The stroke groove that bulge loop matches.
The outer wall that the interior swollen pedestal and interior swollen valve body fit is equipped with several laterally distributed annular grooves；The ring
Matched O-ring is installed in shape slot.
The locking cap outer diameter is greater than interior swollen plug outer diameter.
The beneficial effects of the present invention are:
Compared with prior art, the depositing due to compensation gap using the compensation interior swollen plugging mechanism of the radial compliance of structure of the invention
Bolt can be compensated by way of swing, and the position in the axle center of interior swelling shaft pipe is made to change, and finally be made interior swollen
Central siphon is coaxial with inner hole of workpiece, to complete the effect of flexible blockage, realizes the fast and accurately insertion of interior swollen plug, improves envelope
Stifled efficiency, and then interior swollen ejector sleeve will internally swollen plug be squeezed, and as interior swollen plug is extruded, interior swollen plug outer diameter is not
Disconnected to become larger, interior swollen plug seals inner hole of workpiece, guarantees plugging effect, detects at this time to being sealed property of workpiece, can be effective
Guarantee detection quality.
Detailed description of the invention
Fig. 1 is the sectional view of the compensation interior swollen plugging mechanism of radial compliance of the present invention；
Fig. 2 is the enlarged drawing in the portion A of Fig. 1；
Sectional view when Fig. 3 is swollen closure in the compensation interior swollen plugging mechanism insertion inner hole of workpiece of radial compliance of the present invention carries out；
Fig. 4 is sectional view when the compensation interior swollen plugging mechanism radial compliance of radial compliance of the present invention compensates；
Fig. 5 is the structural schematic diagram of the compensation interior swollen plugging mechanism of radial compliance of the present invention.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
Fig. 1 to Fig. 5 is please referred to, the present invention provides a kind of compensation interior swollen plugging mechanism of radial compliance, including cylinder 1, the gas
The piston rod 101 of cylinder 1 is connected with a connecting plate 2；2 lower part of connecting plate is equipped with several compensation holes 3 being circularly and evenly distributed；
2 lower part of connecting plate is equipped with an air feeding in center hole 4, and air feeding in center hole 4 is enclosed in interior by compensation hole 3；The connecting plate 2 passes through
Bolt 5 is connected with swollen pedestal 6 in one；The interior swollen pedestal 6 is equipped with several screw holes 7 corresponding with 3 position of compensation hole, bolt
5 501 end of spiral shell body passes through compensation hole 3 and is bolted in corresponding screw hole 7；A bullet is arranged with outside the spiral shell body 501 of the bolt 5
Spring 8,8 both ends of spring are contacted at respectively on connecting plate 2 and interior swollen pedestal 6, and the head 502 of bolt 5 is stuck in 2 left side side wall of connecting plate
On；501 diameter of spiral shell body of the bolt 5 is less than 3 diameter of compensation hole, between 3 inner wall of 501 outer wall of spiral shell body and compensation hole of bolt 5
In the presence of compensation gap 9；The interior swollen 6 left side side wall center of pedestal is equipped with an air inlet pipeline 10, interior swollen 6 right sidewall center of pedestal
Equipped with the bolt apertures 11 to connect with air inlet pipeline 10；The bolt apertures 11 are bolted with swelling shaft pipe 12 in one, and interior swelling shaft pipe 12 is right
End is bolted with a locking cap 13；It is arranged with swollen valve body 14 in one outside the interior swollen pedestal 6, is arranged with outside interior swelling shaft pipe 12 swollen in one
Ejector sleeve 15, interior swollen 14 right side of valve body fit with interior swollen 15 left side of ejector sleeve；Between the interior swollen ejector sleeve 15 and locking cap 13
Equipped with swollen plug 16 in one, interior swollen plug 16 is rubber material；The interior swollen valve body 14 can drive interior swollen ejector sleeve 15 to move to right internally
Swollen plug 16 is squeezed.
The interior swollen pedestal 6 is equipped with the first sliding step 17 to match with interior swollen valve body 14；Outside the interior swollen pedestal 6
Wall is equipped with an enterprising stomata 18；First sliding, the 17 left side wall surface of step is equipped with the outlet to connect with enterprising stomata 18
Hole 19,19 right end aperture of venthole is by interior swollen 14 outer wall plug for seal of valve body；The interior swelling shaft pipe 12 is externally provided with a position limiting convex ring
20；The position limiting convex ring 20 is formed with the second sliding step 21 to match with interior swollen ejector sleeve 15 with interior 12 outer wall of swelling shaft pipe；Institute
State the stroke groove 22 that interior 14 right end port of swollen valve body matches equipped with one with position limiting convex ring 20.
The interior swollen pedestal 6 is equipped with several laterally distributed annular grooves 23 with the outer wall that interior swollen valve body 14 fits；
Matched O-ring 24 is installed in the annular groove 23.
The locking cap outer diameter is greater than interior swollen plug outer diameter.
Application method of the invention is as follows:
In actual use, cylinder 1 is then fixed in rack, when needing to detect being sealed property of workpiece, work
Personnel can open cylinder 1, and when cylinder 1 is turned on, the piston rod 101 of cylinder 1 outer can then be pushed up, and connecting plate 2 is therewith towards workpiece
Direction is mobile, and interior 12 right end of swelling shaft pipe can be then inserted directly into interior swollen plug 16 into inner hole of workpiece 25 at this time, even if workpiece
Inner hole 25 there are position deviation, due to compensating the presence in gap 9, bolt 5 can be compensated by way of swing, be made
The position in the axle center of interior swelling shaft pipe 12 changes, and finally makes interior swelling shaft pipe 12 and inner hole of workpiece 25 coaxial, to complete flexibility
The effect of closure realizes the fast and accurately insertion of interior swollen plug 16, improves and block efficiency.
After interior swollen plug 16 is inserted into inner hole of workpiece, staff can be by enterprising 18 air inlet of stomata, and gas is therewith
It enters in venthole 19, as gas constantly enters, the air pressure in venthole 19 then be will increase, and high pressure gas then can be by going out
Internally swollen valve body 14 is pushed the right end of stomata 19, and interior swollen valve body 14 then can carry out the right side along the first sliding step 17 at this time
It moves, the interior swollen valve body 14 that interior swollen ejector sleeve 15 can be then right-shifted by pushes interior 16 direction of swollen plug to, and interior swollen plug 16 swollen is pushed away by interior therewith
Pipe 15 squeezes, and the outer diameter of interior swollen plug 16 constantly starts to become larger, and the leakproofness between interior swollen plug 16 and inner hole of workpiece 25 is continuous
It improves, during swollen valve body 14 moves to right inside, interior swollen valve body 14 the inner wall wall surface and outlet opposite with 19 right end aperture of venthole
19 right end aperture of hole including gap between outer wall wall surface on swollen pedestal 6 constantly become larger, but interior swollen valve body 14 with it is interior swollen
By wall surface gluing, sealing between pedestal 6, there is no need to worry the case where swollen valve body 14 moves to right in gas leakage effect, and position limiting convex ring
20 presence can effectively limit interior swollen valve body 14 and move to right stroke, thus extruding journey of the swollen ejector sleeve 15 to interior swollen plug 16 in limiting
Degree, avoiding interior swollen plug 16 from being extruded excessively causes the case where going wrong, and swollen plug 16 is by working after expansion plugging inside
Personnel can pass sequentially through the included interior road of air feeding in center hole 4, air inlet pipeline 10 and interior swelling shaft pipe 12 and inject a gas into work
In part inner hole 25, the detection of Work piece sealing is completed, in guaranteeing after the closure quality of swollen plug, can effectively ensure that detection matter
Amount.
Interior swollen pedestal 6 is equipped with several laterally distributed annular grooves 23, annular with the outer wall that interior swollen valve body 14 fits
Matched O-ring 24 is installed, the presence of O-ring 24 can further increase interior swollen pedestal 6 and interior swollen valve in slot 23
Leakproofness between body 14 is not in the feelings of gas leakage when swollen valve body 14 is pushed by high pressure gas including guaranteeing to the full extent
Condition.
13 outer diameter of locking cap is greater than interior swollen 16 outer diameter of plug, can guarantee to the full extent under the limitation of locking cap 13 interior
It is expanded when swollen plug 16 is extruded towards outer ring, avoids expanding to side, so that interior swollen plug 16 and inner hole of workpiece be effectively ensured
Leakproofness between 25 guarantees the closure quality of interior swollen plug 16.
Claims (4)
1. a kind of compensation interior swollen plugging mechanism of radial compliance, including cylinder, it is characterised in that: the piston rod of the cylinder connects
There is a connecting plate；The connecting plate lower part is equipped with several compensation holes being circularly and evenly distributed；The connecting plate lower part is equipped with one
Air feeding in center hole, air feeding in center hole are enclosed in interior by compensation hole；Swollen pedestal in one has been bolted in the connecting plate；It is described
Interior swollen pedestal is equipped with several screw holes corresponding with compensation hole site, and the spiral shell body end of bolt passes through compensation hole and is bolted in phase
In the screw hole answered；A spring is arranged with outside the spiral shell body of the bolt, both ends of the spring is contacted at respectively on connecting plate and interior swollen pedestal,
The head of bolt is stuck on the left of connecting plate on side wall；The spiral shell body diameter of the bolt, which is less than, compensates bore dia, outside the spiral shell body of bolt
There is compensation gap between wall and compensation hole inner wall；The interior swollen chassis left side side wall center is equipped with an air inlet pipeline, interior swollen bottom
Seat right sidewall center is equipped with the bolt apertures to connect with air inlet pipeline；The bolt apertures are bolted with swelling shaft pipe in one, interior swelling shaft
Pipe right end is bolted with a locking cap；It is arranged with swollen valve body in one outside the interior swollen pedestal, swollen in one push away is arranged with outside interior swelling shaft pipe
Pipe, interior swollen valve body right side fits with interior swollen ejector sleeve left side；It is equipped between the interior swollen ejector sleeve and locking cap swollen stifled in one
Head, interior swollen plug are rubber material；The interior swollen valve body can drive interior swollen ejector sleeve to move to right internal swollen plug and be squeezed.
2. the compensation interior swollen plugging mechanism of a kind of radial compliance according to claim 1, it is characterised in that: the interior swollen bottom
Seat is equipped with the first sliding step to match with interior swollen valve body；The interior swollen base outer wall is equipped with an enterprising stomata；It is described
First sliding step left side wall face is equipped with the venthole that connects with enterprising stomata, venthole right end aperture by interior swollen valve body outside
Wall plug for seal；The interior swelling shaft pipe is externally provided with a position limiting convex ring；The position limiting convex ring and interior swelling shaft pipe outer wall be formed with it is interior
The second sliding step that swollen ejector sleeve matches；The interior swollen valve body right end port is equipped with a stroke to match with position limiting convex ring
Slot.
3. the compensation interior swollen plugging mechanism of a kind of radial compliance according to claim 1, it is characterised in that: the interior swollen bottom
Seat is equipped with several laterally distributed annular grooves with the outer wall that interior swollen valve body fits；It is equipped in the annular groove and its phase
Matched O-ring.
4. the compensation interior swollen plugging mechanism of a kind of radial compliance according to claim 1, it is characterised in that: the locking cap
Outer diameter is greater than interior swollen plug outer diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811636489.6A CN109505978B (en) | 2018-12-29 | 2018-12-29 | Radial flexible compensation type internal expansion plugging mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811636489.6A CN109505978B (en) | 2018-12-29 | 2018-12-29 | Radial flexible compensation type internal expansion plugging mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109505978A true CN109505978A (en) | 2019-03-22 |
| CN109505978B CN109505978B (en) | 2024-05-03 |
Family
ID=65755771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811636489.6A Active CN109505978B (en) | 2018-12-29 | 2018-12-29 | Radial flexible compensation type internal expansion plugging mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109505978B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926711A (en) * | 2020-02-12 | 2020-03-27 | 南京泰普森自动化设备有限公司 | Plugging device |
| CN112345164A (en) * | 2020-11-03 | 2021-02-09 | 江苏华日圣油气井下工具有限公司 | Novel calibration rubber plug for casing sealing test |
| CN113432807A (en) * | 2021-06-28 | 2021-09-24 | 飞荣达科技(江苏)有限公司 | Universal internal expansion type sealing inspection joint and inspection method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09296871A (en) * | 1996-05-07 | 1997-11-18 | Matsushita Electric Ind Co Ltd | Seal structure and combination faucet device using it |
| CN202938967U (en) * | 2012-12-13 | 2013-05-15 | 上海莲南汽车附件有限公司 | Cylinder internal-expanding seal apparatus |
| CN104006928A (en) * | 2014-04-29 | 2014-08-27 | 雄华机械(苏州)有限公司 | Plug mechanism for testing air impermeability of air cylinder |
| CN104215399A (en) * | 2014-09-23 | 2014-12-17 | 安吉恒盛热能机械有限公司 | Automatic compensating structure for end part sealing of small-diameter straight pipe in air pressure density test |
| CN204175956U (en) * | 2014-10-09 | 2015-02-25 | 上海汽车变速器有限公司 | Internal-expansion type machine plugging mechanism |
| CN209229019U (en) * | 2018-12-29 | 2019-08-09 | 浙江德众汽车零部件制造有限公司 | A kind of compensation interior swollen plugging mechanism of radial compliance |
-
2018
- 2018-12-29 CN CN201811636489.6A patent/CN109505978B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09296871A (en) * | 1996-05-07 | 1997-11-18 | Matsushita Electric Ind Co Ltd | Seal structure and combination faucet device using it |
| CN202938967U (en) * | 2012-12-13 | 2013-05-15 | 上海莲南汽车附件有限公司 | Cylinder internal-expanding seal apparatus |
| CN104006928A (en) * | 2014-04-29 | 2014-08-27 | 雄华机械(苏州)有限公司 | Plug mechanism for testing air impermeability of air cylinder |
| CN104215399A (en) * | 2014-09-23 | 2014-12-17 | 安吉恒盛热能机械有限公司 | Automatic compensating structure for end part sealing of small-diameter straight pipe in air pressure density test |
| CN204175956U (en) * | 2014-10-09 | 2015-02-25 | 上海汽车变速器有限公司 | Internal-expansion type machine plugging mechanism |
| CN209229019U (en) * | 2018-12-29 | 2019-08-09 | 浙江德众汽车零部件制造有限公司 | A kind of compensation interior swollen plugging mechanism of radial compliance |
Non-Patent Citations (1)
| Title |
|---|
| 黄娟;葛便京;张岑;王建明;易良均;: "拖拉机变速箱体油道孔泄漏检测封堵组件设计", 拖拉机与农用运输车, no. 05, pages 56 - 60 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926711A (en) * | 2020-02-12 | 2020-03-27 | 南京泰普森自动化设备有限公司 | Plugging device |
| CN112345164A (en) * | 2020-11-03 | 2021-02-09 | 江苏华日圣油气井下工具有限公司 | Novel calibration rubber plug for casing sealing test |
| CN112345164B (en) * | 2020-11-03 | 2022-12-16 | 江苏华日圣油气井下工具有限公司 | Calibration rubber plug for casing sealing test |
| CN113432807A (en) * | 2021-06-28 | 2021-09-24 | 飞荣达科技(江苏)有限公司 | Universal internal expansion type sealing inspection joint and inspection method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109505978B (en) | 2024-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109505978A (en) | A kind of compensation interior swollen plugging mechanism of radial compliance | |
| CN105675231B (en) | A kind of negative-pressure sealing detection device | |
| CN107166113B (en) | Adaptive underwater oval pipe jointer | |
| CN103672257B (en) | A kind of underground fast hydraulic joint | |
| CN109237195B (en) | Air bag type fluid pipeline plugging device | |
| CN111706734B (en) | Natural gas energy source conveying connecting pipe fitting | |
| AR121089A1 (en) | REUSABLE PIPE INTEGRITY TEST HEAD METHODS AND SYSTEMS | |
| CN107366510A (en) | A kind of down-hole plugging device and actuating oil-pumping unit with pressure, the workover treatment technology of oil pipe | |
| CN209229019U (en) | A kind of compensation interior swollen plugging mechanism of radial compliance | |
| CN111520566A (en) | A interior expanding end cap for pipeline leakproofness detects | |
| CN103090034B (en) | Wedge-caulking parallel sluice valve | |
| CN102418840B (en) | Gas-collecting sleeve | |
| CN217930746U (en) | Gas storage jar leak hunting device | |
| CN213206944U (en) | A interior expanding end cap for pipeline leakproofness detects | |
| CN205716137U (en) | Quick connector | |
| CN205206782U (en) | Oil jacket pipe threaded connection gas leakproofness detects packer | |
| CN208845720U (en) | A kind of novel pipeline sealing structure | |
| CN209164851U (en) | A kind of quick coupling | |
| CN209012412U (en) | One kind being directed to cylindrical shape product plugging device | |
| CN205191049U (en) | Quick connector | |
| CN106194099A (en) | Gas control downhole packer | |
| CN205743820U (en) | A kind of down-hole plugging device | |
| CN107654788B (en) | Shutoff silica gel device | |
| CN201803835U (en) | Diameter changing nipple thread leakage seeker in pipelines | |
| CN113631904A (en) | Watertight test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |