CN106764150B - Snap ring locking type pipeline connecting assemble - Google Patents
Snap ring locking type pipeline connecting assemble Download PDFInfo
- Publication number
- CN106764150B CN106764150B CN201710189565.2A CN201710189565A CN106764150B CN 106764150 B CN106764150 B CN 106764150B CN 201710189565 A CN201710189565 A CN 201710189565A CN 106764150 B CN106764150 B CN 106764150B
- Authority
- CN
- China
- Prior art keywords
- pipeline
- pipe fitting
- snap ring
- pressing sleeve
- sealing ring
- 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.)
- Active
Links
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/007—Joints with sleeve or socket clamped by a wedging action
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention discloses a kind of snap ring locking type pipeline connecting assembles, have the acting pipe locking mechanism being made of pressing sleeve and locking member, and pressing sleeve is located at through hole section equipped with horn-like tapered configuration, and locking member is made of snap ring and plumbing chase；Connection component further includes the casting die of an adjusting sealing ring compression ratio, and by thread helix, axial movement applies pressure to sealing ring in pipe fitting covers.The present invention stops the determination position of structure and groove in conjunction with top, had both realized the locking of pipeline, and also ensured the accurate of Pipe installing size, and without other removal tool specials, that is, detachable pipeline by using the structure of pressing sleeve cooperation pipe fitting set；In addition, casting die can be screwed by being cleverly provided with using space in pipe fitting set, for adjusting the compression ratio of sealing ring, and then ensure seal for pipe joints.Cleverly structure designs entire scheme, the pipeline connection technology of having overturned current snap ring locking type, has especially broken bottleneck of traditional locking mode in large diameter pipeline connection, and further expansion snap ring is locked at the advantage in pipeline connection technology, practicability is extremely strong, and market prospects are very wide.
Description
Technical field
The invention belongs to Quick joinker for pipeline technical fields, relate generally to the fast quick access of snap ring locking type pipeline of inserted mode
Head and component, are applicable to the quick connection of the pipelines such as stainless steel tube.
Background technique
The fast sealing of pipeline connects, the connection etc. of stainless steel waterpipe, and all there are many kinds to solve in reality is used
Scheme.How to ensure pipeline connection have good leakproofness and enough pulling capacities, while also to have connect well it is convenient
Property, it is that pipeline connects key technical problem to be solved.
There is the scheme that acting pipe locking is carried out using snap ring and the conical surface in the prior art, such as: Chinese patent Authorization Notice No. is
The improved directly-pushing connecting pipe joint patent of invention and China Patent Publication No. of 103062549 A of CN is CN101614308A
A kind of directly-pushing connecting pipe joint, both disclose using tubing groove and snap ring cooperation tapered configuration realize pipeline drawing when it is self-locking
Technical solution.But all there is some can not be ignored during practice in these prior arts, in which:
(1) installation question of snap ring.Snap ring, which must be caught in tubing groove, can just play the role of axial lock, and existing
In the mechanism of technology, snap ring is to have to be initially charged in the horn mouth of pipe fitting set open end, cannot be filled in again on tubing in advance
In pipe fitting set.Because snap ring has elasticity, before not being inserted in pipeline, the interior diameter of snap ring is less than tubular outer diameter and pipeline
The bottom diameter of groove, snap ring will also be by first merging pipe fitting sets；It also is exactly this reason, after snap ring is in pipe fitting set, because of loudspeaker
The specific structure of mouth (tapered configuration), when so that pipeline being not inserted into snap ring, activity space of the snap ring in pipe fitting set becomes larger, this is just
It allows pipeline to be difficult fast and accurately to be directed at snap ring, sometimes results in snap ring in pipeline insertion pipe fitting set, withstood on pipeline opening card
Extremely.This problem can insert examination and solve for small-bore pipeline by being repeated several times, but for bigbore pipeline,
Snap ring is almost unvanquishable problem with accurate smooth dock of pipeline, because of the pipeline that bore is big, horn mouth size is big, and
Since the depth of large diameter pipeline connection request groove is big, the natural shrinking state size of snap ring and the outer diameter difference of pipeline
Just very greatly, and the activity space in pipe fitting set is also bigger, and which results in the sets that snap ring can not be successfully in pipe fitting set
Into on the pipeline of insertion.
(2) Pipe installing size precise positioning problem.Pipe installing is to the valve or various equipment and pipeline on pipeline
The status requirement accurately size Control of bending and branch；What this pipe connecting structure of the prior art increased in pipeline internal pressure
The position that will cause between adjacent channel connection in the process increases, and finally results in the various device locations offset on pipeline, this
Be there are the problem of.
(3) the problem of pipeline dismounts.When pipeline connection error or maintenance needs are removed, some structures need special work
Tool, which inwardly pushes up back ball or ball bracket, could extract pipeline, and some is not removable, needs destructive dismounting.
In addition, in the prior art, the sealing means of pipeline connection are all and the sealing rings by the way of elastic seal ring
Compression ratio determine sealing performance, the too big difficulty for being particularly easy to cause pipeline insertion sealing ring again of compression ratio；In addition, steel pipe
Size is manufactured not very precisely with pipe fitting set and sealing ring three, this just inevitably causes certain positions may be because of dimensional discrepancy
And tightness is reduced, and especially in the connection of bigbore pipeline, this phenomenon especially severe；In addition, the compression ratio of sealing ring
Also it is adjusted without structure appropriate, is unfavorable for the convenient maintenance of seal for pipe joints performance, this is also that the innovation is focused on solving
The problem of.
Summary of the invention
In view of the above-mentioned problems, the present invention is intended to provide a kind of convenient for snap ring installation and convenient for pipeline disassembly, moreover it is possible to precisely
Determine the pipeline connecting assemble of pipe fitting installation site；The present invention also provides a kind of convenient pipelines for adjusting sealing ring compression ratio
Connection component changes the repair mode of the sealing problem occurred in pipeline use process.
To realize the technical purpose, the scheme of the invention is: a kind of snap ring locking type pipeline connecting assemble is used for pipeline enclosure
Connection, including pipeline, pipe fitting set, sealing ring and acting pipe locking mechanism, pipe fitting is cased with the open end for pipeline insertion, sealing ring
It is built in pipe fitting set, it is characterised in that: the pipe fitting set is located at open end outer wall and is equipped with the first connection screw thread, and pipe fitting set is internal
Stop the top that pipeline continues into equipped with top and stops structure；The acting pipe locking mechanism includes a pressing sleeve and a locking member；The pressing sleeve
One end be opening, the other end has the through-hole that passes through for pipeline, and the inner wall that pressing sleeve is located at open section is equipped with second and couples screw thread,
Pressing sleeve is located at through hole section equipped with horn-like tapered configuration, and the major diameter of the tapered configuration is towards open side, and path is towards through-hole side；
Second connection thread helix, which screws in the first connection screw thread, to be made pressing sleeve be bolted in pipe fitting to put on；The locking member is located on pipeline and encapsulates
In in pressing sleeve, which is made of snap ring and plumbing chase, and the snap ring is fastened on plumbing chase, and the pipeline is recessed
Slot is the circle deep gouge being surrounded on pipeline outer wall；The size of the most path of the tapered configuration of pressing sleeve should be less than snap ring and be located at groove
When maximum outside diameter size, the position of the plumbing chase is far from sealing ring, in sealing ring without phase when snap ring is stuck in plumbing chase
Interreaction force；When pipeline puts on pressing sleeve, plumbing chase card upper snap ring is inserted into pipe fitting set, across the sealing being built in pipe fitting set
After circle is until push up only structure, pressing sleeve spiral puts on to pipe fitting set direction in pipe fitting and axially elapses, and snap ring is by the taper knot in pressing sleeve
Structure squeezes and then by acting pipe locking in pressing sleeve.
It is improved as further, the connection component further includes the casting die of an adjusting sealing ring compression ratio, the casting die
It is equipped with the rigid sleeve being set on pipeline that third couples screw thread for an outer surface, the top of the casting die is equipped with rotation force
Structure；The inner wall that pipe fitting set is located at open end is equipped with the 4th connection screw thread, and the casting die passes through third connection screw thread and the
Four connection thread helix finally apply pressure to sealing ring in moving axially to sealing ring in pipe fitting set；The casting die and it is stuck in pipeline
Snap ring on groove is without interaction force.
Scheme more preferably is also built-in with the smooth gasket of an annulus between the sealing ring and casting die.
Scheme more preferably, the 4th connection screw thread and the first connection screw thread are primary by roller-compaction mode
It takes shape on pipe fitting set opening end wall.
The invention has the advantages that stopping structure by using the structure of pressing sleeve cooperation pipe fitting set in conjunction with top and pipeline being recessed
The determination position of slot had both realized the locking of pipeline axial movement, also ensured the accurate of Pipe installing size, and unscrewing pressing sleeve is
Detachable pipeline is without by other removal tool specials；It can in addition, being cleverly provided with using space in pipe fitting set
Casting die is screwed, for adjusting the degree that is extruded of sealing ring, and then ensures seal for pipe joints, can be disassembled in pipe leakage
The compression ratio that casting die increases sealing ring, pipe-repairing leak are further tightened after pipe fitting set.Cleverly structure designs entire scheme,
The pipeline connection technology for having overturned current snap ring locking type has especially broken traditional locking mode in large diameter pipeline connection
Bottleneck, further expansion snap ring are locked at the advantage in pipeline connection technology, and practicability is extremely strong, market prospects are very wide.
Detailed description of the invention
Fig. 1 is that pipeline is inserted into schematic cross-sectional view when pipe fitting covers in embodiment one；
Fig. 2 is the perspective view of the explosion of pipeline and each component in embodiment one；
Fig. 3 is that pipeline is inserted into schematic cross-sectional view when pipe fitting covers in embodiment two；
Fig. 4 is the perspective view of the explosion of pipeline and each component in embodiment two；
Fig. 5 is that the pipe fitting of embodiment two in the present invention covers longitudinal sectional view；
Fig. 6 is pressing sleeve longitudinal sectional view of the invention；
Fig. 7 is the main view of casting die in the present invention；
Fig. 8 be Fig. 7 A-A to cross-sectional view.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is further explained.In the following detailed description, only pass through explanation
Mode describes certain exemplary embodiments of the invention.Undoubtedly, those skilled in the art will recognize,
In the case where without departing from the spirit and scope of the present invention, described embodiment can be repaired with a variety of different modes
Just.Therefore, attached drawing and description are regarded as illustrative in nature, and are not intended to limit the scope of the claims.
A kind of snap ring locking type pipeline connecting assemble according to the present invention is the connection for pipeline enclosure, the pipeline
It can be stainless steel waterpipe, be also possible to other tubing with the same function.Group as shown in Figure 1,2,3, 4, of the invention
Part includes pipe fitting set 5, sealing ring 7 and acting pipe locking mechanism, and pipe fitting set 5 has the open end being inserted into for pipeline 1, flexible close
The slot position 52 inside pipe fitting set is arranged in seal 7, for the sealing between pipeline 1 and pipe fitting set 5, it is ensured that water-tight.In reality
During border uses, pipe fitting set 5, which can be to lead directly to, is also possible to elbow, usually includes the two-way adapter tube of two open ends, certainly,
It can be the multi-pass adapter tube with multiple open ends, this belongs to protection scope of the present invention, and specific open end quantity can root
It is designed according to actual demand by those skilled in the art.
(the only corresponding pipe fitting set of specific embodiment two of diagram, pipe fitting puts on built-in sealing ring and top is stopped as shown in Figure 5
Structure etc. can design as the case may be), pipe fitting set of the invention is different from the prior art, the open end of the pipe fitting set 5
Outer wall is equipped with the first connection screw thread 53, and the inside of pipe fitting set 5 stops the top that pipeline continues into equipped with top and stops structure 51, which can
To be the protrusion for being located at pipe fitting set inner wall, the purpose is to not allow pipeline to continue to move axially, because if pipeline 1 is not stopped by top,
Pipeline 1 can be moved with the passage of pressing sleeve 2, and snap ring 3 will be unable to locking pipe 1.
Acting pipe locking mechanism in the present invention includes a pressing sleeve 2 and a locking member；One end of the pressing sleeve 2 is opening, separately
One end has the through-hole passed through for pipeline, as shown in FIG. 6, this passes through the pressing sleeve convenient for pipeline.Pressing sleeve 2 is located at the interior of open section
Wall is equipped with the second connection screw thread 22, and pressing sleeve 2 is located at through hole section equipped with horn-like tapered configuration 21, the major diameter of the tapered configuration 21
(i.e. maximum caliber) towards open side, for path (i.e. lowest calibre) towards through-hole side, the angle of specific tapered configuration can basis
Specific structure is designed and adjusts；The second connection rotation of screw thread spiral shell 22, which screws in the first connection screw thread 53, makes pressing sleeve be bolted in pipe fitting
It puts on.
Locking member in the present invention may be provided on pipeline and be packaged in pressing sleeve, and the locking member is recessed by snap ring 3 and pipeline
Slot 11 is constituted, and the snap ring 3 can be fastened on plumbing chase 11.In a particular embodiment, the cross section of snap ring 3 be it is round (when
So it is also possible to other shapes), the plumbing chase 11 is to be surrounded on the circle deep gouge that cross section on pipeline outer wall is circular arc (to sink
The cross section of slot is also possible to other shapes)；The size of 21 small-and-middle diameter of tapered configuration should be less than when snap ring is located at groove most
Big outer diameter is skidded off from the through-hole of pressing sleeve with preventing snap ring；Far from sealing ring 7, snap ring is stuck in pipe for the position of plumbing chase 11
In sealing ring 7 without interaction force when road groove, the advantage of doing so is that sealing ring will not be damaged；When pipeline 1 puts on pressing sleeve 2,
After 11 card upper snap ring 3 of plumbing chase is inserted into pipe fitting set 5 until pushing up only structure, 2 spiral of pressing sleeve elapses forward on pipe fitting set 5,
Snap ring 3 is squeezed by the tapered configuration 21 in pressing sleeve and then by acting pipe locking in pressing sleeve.Stop because pipeline is pushed up, the position of groove
Be again it is determining, so pipeline be connected to pipe fitting set size be determining, and be different from need in the prior art outer tube drawing road by
Pressure and caused by pipeline and pipe fitting set size it is uncertain.
For the present invention also according to pipe fitting above-mentioned set and pressing sleeve structure, innovative devises a kind of adjusting sealing ring compression ratio
Casting die 4, as shown in FIG. 7 and 8, which is that outer surface is equipped with third to couple being set in for screw thread 42 rigid on pipeline
Property sleeve, the top of the casting die 4 is equipped with rotation force application structure 41, and this structure can be the structure of interior hexagonal etc, as long as
It is able to achieve using the tool of such as spanner etc and screws the casting die；It is corresponding, it is located at the inner wall of open end in pipe fitting set 5
Equipped with the 4th connection screw thread 54, the casting die 4 couples screw thread by third and couples thread helix in axial in pipe fitting set with the 4th
It is moved at sealing ring 3, finally applies pressure to sealing ring 3, the size of extruding force can be thus adjusted by rotary pressing member, in turn
Adjust the tightness degree of sealing ring extrusion pipe outer wall and pipe fitting set inner wall.Fig. 3 and Fig. 4 is exactly specific embodiments of the present invention
Two, the casting die 4 has just been embedded in the embodiment.
In order to prevent casting die in rotary course to the damage of sealing ring, in the best mode for carrying out the invention, sealing ring 7 and casting die
The smooth gasket 6 of an annulus is also built-in between 4.
Based on the considerations of manufacturing cost and the compactedness of structure, the 4th connection screw thread and the first connection screw thread
It is to be covered on opening end wall by the one-pass molding of roller-compaction mode in pipe fitting.
The above shows and describes the basic principle, main features and advantages of the invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (3)
1. a kind of snap ring locking type pipeline connecting assemble, for the connection of pipeline enclosure, including pipeline, pipe fitting set, sealing ring and pipe
Road retaining mechanism, pipe fitting are cased with the open end for pipeline insertion, and sealing ring is built in pipe fitting set, it is characterised in that:
The pipe fitting set is located at open end outer wall and is equipped with the first connection screw thread, and what pipeline continued into stopped in the internal top that is equipped with of pipe fitting set
Stop structure in top；
The acting pipe locking mechanism includes a pressing sleeve and a locking member；
One end of the pressing sleeve is opening, and the other end has the through-hole passed through for pipeline, and the inner wall that pressing sleeve is located at open section is equipped with
Second connection screw thread, pressing sleeve are located at through hole section equipped with horn-like tapered configuration, and the major diameter of the tapered configuration is small towards open side
Diameter is towards through-hole side；Second connection thread helix, which screws in the first connection screw thread, to be made pressing sleeve be bolted in pipe fitting to put on；
The locking member is located on pipeline and is packaged in pressing sleeve, which is made of snap ring and plumbing chase, the card
Ring is fastened on plumbing chase, and the plumbing chase is the circle deep gouge being surrounded on pipeline outer wall；The tapered configuration of pressing sleeve
The size of most path should be less than maximum outside diameter size when snap ring is located at groove, the position of the plumbing chase far from sealing ring,
When snap ring is stuck in plumbing chase and sealing ring is without interaction force；
When pipeline puts on pressing sleeve, plumbing chase card upper snap ring is inserted into pipe fitting set, straight across the sealing ring being built in pipe fitting set
After stopping structure to top, pressing sleeve spiral puts on to pipe fitting set direction in pipe fitting and axially elapses, and snap ring is squeezed by the tapered configuration in pressing sleeve
It is pressed into and by acting pipe locking in pressing sleeve；
The connection component further includes the casting die of an adjusting sealing ring compression ratio, which is that an outer surface is equipped with third connection spiral shell
The rigid sleeve of line being set on pipeline, the top of the casting die are equipped with rotation force application structure；The pipe fitting set is located at opening
The inner wall at end is equipped with the 4th connection screw thread, and the casting die couples screw thread by third and couples thread helix in pipe fitting set with the 4th
Sealing ring is moved axially to, finally applies pressure to sealing ring；The casting die and the snap ring being stuck on plumbing chase are without interaction force.
2. snap ring locking type pipeline connecting assemble according to claim 1, which is characterized in that the sealing ring and casting die it
Between be also built-in with the smooth gasket of an annulus.
3. snap ring locking type pipeline connecting assemble according to claim 1 or 2, which is characterized in that the 4th connection spiral shell
Line and the first connection screw thread are to be covered on opening end wall by the one-pass molding of roller-compaction mode in pipe fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710189565.2A CN106764150B (en) | 2017-03-27 | 2017-03-27 | Snap ring locking type pipeline connecting assemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710189565.2A CN106764150B (en) | 2017-03-27 | 2017-03-27 | Snap ring locking type pipeline connecting assemble |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106764150A CN106764150A (en) | 2017-05-31 |
| CN106764150B true CN106764150B (en) | 2019-02-26 |
Family
ID=58966463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710189565.2A Active CN106764150B (en) | 2017-03-27 | 2017-03-27 | Snap ring locking type pipeline connecting assemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106764150B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255194B (en) * | 2017-08-01 | 2023-04-28 | 广州宝捷不锈钢管业有限公司 | Stainless steel pipe full thin wall non-casting connection structure |
| CN109185577A (en) * | 2018-09-30 | 2019-01-11 | 厦门中井科技有限公司 | Interior card clamp-press type assembling pipe joint |
| WO2021046670A1 (en) * | 2019-09-09 | 2021-03-18 | 浙江海亮股份有限公司 | Snap-fitting connecting pipe, snap-fitting composite pipe, and production method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4886304A (en) * | 1987-02-18 | 1989-12-12 | Victaulic Company Of America | Abrasive grip pipe coupling |
| US9604404B2 (en) * | 2003-05-29 | 2017-03-28 | Orbit Irrigation Products, Inc. | Conduit coupling apparatus and method |
| CN201180875Y (en) * | 2008-02-18 | 2009-01-14 | 吴百海 | Detachable connecting pipe fitting |
| CN202719311U (en) * | 2012-06-01 | 2013-02-06 | 东莞市利连结管道有限公司 | Direct push connection pipe joint and direct push connection pipe joint structure |
| CN106090479A (en) * | 2015-11-06 | 2016-11-09 | 苏光彬 | Metallic conduit snap ring-type attachment structure and preparation method thereof |
| CN206637145U (en) * | 2017-03-27 | 2017-11-14 | 戴爱清 | A kind of new snap ring locking type pipeline connecting assemble |
-
2017
- 2017-03-27 CN CN201710189565.2A patent/CN106764150B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106764150A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8240715B2 (en) | Connection structure of tubular connection member and joint member | |
| CN106764150B (en) | Snap ring locking type pipeline connecting assemble | |
| US3689110A (en) | Fluid line coupling | |
| CN209524188U (en) | A kind of flared fitting | |
| US8020899B2 (en) | PVC pipe coupling | |
| CN106322008A (en) | Pipe fitting | |
| CN106813027B (en) | Ball locking type conduit coupling | |
| CN206637145U (en) | A kind of new snap ring locking type pipeline connecting assemble | |
| CN206637148U (en) | A kind of new pattern rolling ball locking type conduit coupling | |
| CN112412385A (en) | Clamping locking type oil casing pipe leaking stoppage sealer | |
| CN104455815A (en) | Tapered sealing pipe connector for excavator | |
| CA2489548A1 (en) | Coupling of drill anchors | |
| CN100535498C (en) | Tube jointing structure with locking bar | |
| AU629935B2 (en) | Pipe connector with treaded seal in nonthreaded cavity | |
| KR200482592Y1 (en) | PB Pipe Connection Socket Device of Faucet | |
| CN204284716U (en) | A kind of excavator cone sealing pipe joint | |
| CN209164851U (en) | A kind of quick coupling | |
| CN208107432U (en) | A kind of adapter substitute for on-site rush repair of glass reinforced plastic pipeline | |
| CN218152939U (en) | Ready-package pipe joint | |
| CN205716106U (en) | Air-brake coupling hose and hydraulic brake line | |
| CN217272724U (en) | PVC pipe joint connecting device | |
| KR102188307B1 (en) | One touch assembly structure for plastic pipe with easy-assembly | |
| CN213576133U (en) | Three-way joint | |
| CN219241372U (en) | Pipe sleeve for grouting steel pipe column | |
| CN104120991A (en) | Well mouth ball injector |
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 |