CN108317315A - It is flared connecting positioning sleeve, connecting pipe and pipe fitting connecting method - Google Patents
It is flared connecting positioning sleeve, connecting pipe and pipe fitting connecting method Download PDFInfo
- Publication number
- CN108317315A CN108317315A CN201810260764.2A CN201810260764A CN108317315A CN 108317315 A CN108317315 A CN 108317315A CN 201810260764 A CN201810260764 A CN 201810260764A CN 108317315 A CN108317315 A CN 108317315A
- Authority
- CN
- China
- Prior art keywords
- positioning sleeve
- wall
- tubing
- flaring
- ontology
- 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
- 238000000034 method Methods 0.000 title claims abstract description 16
- 210000003205 muscle Anatomy 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 14
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000006049 ring expansion reaction Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000243 solution Substances 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
- F16L13/16—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling the pipe joint consisting of overlapping extremities having mutually co-operating collars
- F16L13/165—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling the pipe joint consisting of overlapping extremities having mutually co-operating collars the pipe or collar being deformed by an axially movable sleeve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The invention discloses a kind of flaring connecting positioning sleeve, connecting pipe and pipe fitting connecting methods, the flaring connecting positioning sleeve includes set ontology, the inner wall of the set ontology with the outer wall of tubing for matching, the outer wall of the set ontology with the inner wall of memory ring for matching, the inner wall of the first end of the set ontology is equipped with interior detent, it is described set ontology first end outer wall be equipped with it is anti-tripping, it is described set ontology second end outer wall be equipped with outer detent.The flaring connecting positioning sleeve, connecting pipe and pipe fitting connecting method can solve the problems, such as the displacement of memory ring when flaring connection, improve the quality stability of memory ring, reduce production cost.
Description
Technical field
The present invention relates to a kind of technical field of pipeline connection more particularly to flaring connecting positioning sleeve, connecting pipe and pipes
Part connection method.
Background technology
In technical field of pipeline connection, it is widely used that a kind of flared type from the connecting pipe that closes up.Such connecting tube
Part is made of tubing, pipe fitting and memory ring, and memory ring possesses the ability to bounce back to full size after being expanded.Carry out pipe fitting company
When connecing, mode of operation is that first memory is located on the connecting pin of tubing, and connecting pin and the note of tubing are then made using expander
Recall ring expansion, then the insertion end of pipe fitting is put into inside tubing, is kept for the 5-10 seconds time of this position, wait for the connecting pin of tubing
Connection can be completed after the completion of being shunk with memory ring.In general, memory ring must have locking function, otherwise when the connecting pin of tubing
When being extended, memory ring can slip from the connecting pin of tubing.
Traditional, memory ring generally uses PEX-a materials.PEX-a material memory capabilities are preferable, but the note of PEX-a materials
The processing technology for recalling ring is extrusion molding pipe, is then cut into the annulus of appropriate length, then punching press stop on an end face wherein
Structure processes chocking construction in annulus endoporus material removal, both processing method quality stability are poor, and cost is higher.
Invention content
Based on this, it is necessary to provide a kind of flaring connecting positioning sleeve, connecting pipe and pipe fitting connecting method, which connects
The displacement of memory ring when flaring connection can be solved the problems, such as by connecing positioning sleeve, connecting pipe and pipe fitting connecting method, improve memory
The quality stability of ring reduces production cost.
Its technical solution is as follows：
A kind of flaring connecting positioning sleeve, including set ontology, the inner wall of the set ontology with the outer wall of tubing for matching, institute
The outer wall of set ontology is stated for being matched with the inner wall of memory ring, the inner wall of the first end of the set ontology is equipped with interior detent,
It is described set ontology first end outer wall be equipped with it is anti-tripping, it is described set ontology second end outer wall be equipped with outer detent.
Above-mentioned flaring connecting positioning sleeve can be used for flared type from closing in connecting pipe, and being set to memory ring when use should
Cover ontology outer wall on, then by set ontology be sheathed at the connecting pin of tubing, and make set ontology first end be located at tubing
At the port of connecting pin, when carrying out flaring connection, the connecting pin of tubing is extended, and larger taper is will produce at connecting pin, by
It is equipped with interior detent in the first end of set ontology, interior detent makes the flaring connecting positioning sleeve remain to the connection for being fixed on tubing
End, and cover ontology first end be equipped with it is anti-tripping, second end be equipped with outer detent so that memory ring expansion when remain to be fixed on
It covers on ontology, can effectively solve the problem that memory ring as a result, the problem of being flared shift, and without specially in the enterprising whereabouts of memory ring
Dynamic processing, improves the quality stability of memory ring, reduces production cost.
Further, it is described set ontology inner wall be equipped with fixing muscle, the fixing muscle with it is described set ontology axis it
Between shortest distance a be less than pipe fitting reverse hook teeth maximum gauge b.
Further, the fixing muscle is a plurality of, and a plurality of fixing muscle is spaced apart around the axis of the set ontology
On the inner wall of the set ontology.
Further, on the outer wall of the set ontology drag reduction slot is being equipped with the fixing muscle corresponding section.
Further, the interior detent, outer detent and it is at least one of anti-tripping be annular projection structure.
Further, the inside of the second end of the set ontology is rounding corner structure.
Further, which is PE materials or plastic material.
Further, which uses injection molding.
A kind of connecting pipe, including pipe fitting, memory ring, tubing and the flaring connecting positioning sleeve, the flaring
Connecting positioning sleeve is used to be set in the outside of the connecting pin of the tubing, and the memory ring is used to be set in the outer of the set ontology
Side, and the memory ring be located at it is described anti-tripping the outer detent between, the pipe fitting be used for be inserted into the tubing
Connecting pin.
Above-mentioned connecting pipe, including above-mentioned flaring connecting positioning sleeve have the technology effect of above-mentioned flaring connecting positioning sleeve
Fruit can effectively solve the problem that memory ring the problem of being flared shift, improve the quality stability of memory ring, reduce production cost.
A kind of pipe fitting connecting method is included the following steps using the flaring connecting positioning sleeve：
Memory ring is sheathed on the outer wall of ontology so that memory ring be located at it is described it is anti-tripping with the outer detent it
Between, it will be on the outer wall that the connecting pin that ontology is sheathed on tubing be covered；
The connecting pin for expanding tubing makes the connecting pin of tubing generate widened taper, covers the interior stop of the second end of ontology
It is dynamic to tip whereabouts in, makes the flaring connecting positioning sleeve remain to be fixed at the connecting pin of tubing, is flared the first end of connecting positioning sleeve
Outer detent to memory ring carry out stop so that memory ring expansion when be fixed on set ontology on；
The insertion end of pipe fitting is put into inside tubing, the connecting pin of tubing and memory ring shrink and complete connection.
Above-mentioned pipe fitting connecting method can effectively solve the problem that memory ring the problem of being flared shift, improves the matter of memory ring
Stability is measured, production cost is reduced.
Description of the drawings
Fig. 1 is that the connecting pipe described in one embodiment of the invention completes the structural schematic diagram after connection；
Fig. 2 is the structural schematic diagram before the connecting pin flaring of the tubing described in one embodiment of the invention；
Fig. 3 is the structural schematic diagram after the connecting pin flaring of the tubing described in one embodiment of the invention；
Fig. 4 is the structural schematic diagram of the flaring connecting positioning sleeve described in one embodiment of the invention；
Fig. 5 is the front view of the flaring connecting positioning sleeve described in one embodiment of the invention；
Fig. 6 is the side view of the flaring connecting positioning sleeve described in one embodiment of the invention；
Fig. 7 is the structural schematic diagram that the flaring connecting positioning sleeve described in one embodiment of the invention is mounted on pipe fitting；
Fig. 8 is the flow diagram of the pipe fitting connecting method described in another embodiment of the present invention.
Reference sign：
100, pipe fitting, 110, reverse hook teeth, 200, memory ring, 300, tubing, 400, flaring connecting positioning sleeve, 410, set this
Body, 420, interior detent, 430, anti-tripping, 440, outer detent, 450, fixing muscle, 460, drag reduction slot, 470, rounded corner.
Specific implementation mode
To facilitate the understanding of the present invention, below with reference to relevant drawings to invention is more fully described.In attached drawing
Give the better embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element "upper",
There is no intermediary elements.Term as used herein " vertically ", " horizontal ", "left", "right" and similar statement are
For illustrative purposes, it is not offered as being unique embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant Listed Items.Term as used herein " first ", " second " etc. are used herein
In differentiation object, but these objects should not be limited by these terms.
As shown in Figure 1, Figure 2, Figure 3 shows, an embodiment provides a kind of connecting pipe, including pipe fitting 100, memory ring 200, pipe
Material 300 and flaring connecting positioning sleeve 400.
As shown in Figure 2, Figure 3, Figure 4, the flaring connecting positioning sleeve 400, including set ontology in one of the embodiments,
410.For being matched with the outer wall of tubing 300, the outer wall of the set ontology 410 is used for and memory the inner wall of the set ontology 410
The inner wall of ring 200 matches.The inner wall of the first end of the set ontology 410 is equipped with interior detent 420.The set ontology 410
The outer wall of first end is equipped with anti-tripping 430.The outer wall of the second end of the set ontology 410 is equipped with outer detent 440.
The flaring connecting positioning sleeve 400, can be used for flared type from closing in connecting pipe, as shown in Fig. 2, will when using
Memory ring 200 is set on the outer wall of the set ontology 410, then set ontology 410 is sheathed at the connecting pin of tubing 300, and is made
At the port for the connecting pin that the first end of set ontology 410 is located at tubing 300, as shown in figure 3, when carrying out flaring connection, tubing 300
Connecting pin be extended, larger taper is will produce at connecting pin, due to set ontology 410 first end be equipped with interior detent 420,
Interior detent 420 is so that the flaring connecting positioning sleeve 400 remains to the connecting pin for being fixed on tubing 300, and covers the first of ontology 410
End is equipped with anti-tripping 430, and second end is equipped with outer detent 440 so that memory ring 200 remains to be fixed on set ontology in expansion
On 410, memory ring 200 is can effectively solve the problem that as a result, the problem of being flared shift, and memory ring 200 is remained to using memory work(
Preferably PEX-a materials, guarantee Memorability it can improve memory ring without specially moving processing in 200 enterprising whereabouts of memory ring
200 quality stability reduces production cost.
In the present embodiment, the interior detent 420, outer detent 440 and anti-tripping at least one of 430 are ring-type
Bulge-structure.Using annular projection structure, i.e., interior detent 420, outer detent 440 and/or anti-tripping 430 are along set ontology
410 circumferential direction is arranged around a circle, can be dynamic in the enterprising whereabouts of entire circumferential direction, and stopping effect is good, and the present embodiment
In flaring connecting positioning sleeve 400 can be integrally formed when being manufactured, it is easily manufactured.Optionally, the interior detent 420, outer
Detent 440 and anti-tripping 430 be annular projection structure, the flaring connecting positioning sleeve 400 of the present embodiment to tubing 300 and
The stopping effect of memory ring 200 is good, to the good anti-drop effect of memory ring 200, and it is simple in structure, easily manufactured.
In the present embodiment, as shown in Figure 4, Figure 5, the inner wall of the set ontology 410 is equipped with fixing muscle 450, such as Fig. 6, Fig. 2
Shown, the shortest distance a between the fixing muscle 450 and the axis of the set ontology 410 is less than the reverse hook teeth of pipe fitting 100
110 maximum gauge b.In turn, as shown in fig. 7, the flaring connecting positioning sleeve 400 of the present embodiment may be mounted at pipe before use connects
On first 100, leads to this fixing muscle 450 and the reverse hook teeth 110 of pipe fitting 100 is interference fitted, the flaring connecting positioning sleeve 400 is made to make
With being preceding fixed on pipe fitting 100, and then play the role of in transportational process protecting pipe fitting 100.In addition, can will also remember
Ring 200 is mounted on the flaring connecting positioning sleeve 400, makes flaring connecting positioning sleeve 400 and memory ring 200 solid together before
It is scheduled on pipe fitting 100, pipe fitting 100 is effectively protected in transportational process.
In the present embodiment, the set ontology 410 is cylindrical shape, is matched with 300 shape of common pipe materials.Optionally, described solid
It is a plurality of to determine muscle 450, and a plurality of fixing muscle 450 is distributed in the set ontology 410 around the axis of the set ontology 410
Inner wall on.In this way, flaring connecting positioning sleeve 400 can be reliably fixed on pipe fitting 100.Optionally, a plurality of described solid
Determine muscle 450 to be evenly spaced on the inner wall of the set ontology 410 around the axis of the set ontology 410, good fixing effect,
It is easily manufactured, structure is beautiful.
Further, as shown in Figure 4, Figure 5, it is described set ontology 410 outer wall on 450 corresponding section of the fixing muscle
Equipped with drag reduction slot 460.Using the above structure, since wall thickness of the set ontology 410 at drag reduction slot 460 is relatively thin, and then ontology 410 is covered
There is certain deformation space, when tubing 300 is inserted into the endoporus of set ontology 410 of the flaring connecting positioning sleeve 400, on inner hole wall
Fixing muscle 450 larger resistance will not be generated to tubing 300.Specifically, described to subtract when the fixing muscle 450 is a plurality of
The quantity for hindering slot 460 is identical as the quantity of fixing muscle 450, and position is arranged in a one-to-one correspondence respectively.
In the present embodiment, as shown in Fig. 5, Fig. 2, the inside of the second end of the set ontology 410 is 470 structure of rounded corner,
It is inserted into set ontology 410 convenient for tubing 300.
Optionally, which is PE materials or the preferable plastic material of toughness, and material property is good, just
In manufacture.The flaring connecting positioning sleeve 400 uses injection molding.In turn, dozens of can be gone out with a mould when manufacture production, reduce life
Cost is produced, production efficiency is improved.
As shown in Figure 1, Figure 2, Figure 3 shows, the connecting pipe, the flaring connecting positioning sleeve 400 are described for being set in
The outside of the connecting pin of tubing 300.The memory ring 200 is used to be set in the outside of the set ontology 410, and the memory ring
200 between described anti-tripping 430 and the outer detent 440.The pipe fitting 100 is for being inserted into the tubing 300
Connecting pin.The connecting pipe, including above-mentioned flaring connecting positioning sleeve 400, have the skill of above-mentioned flaring connecting positioning sleeve 400
Art effect can effectively solve the problem that memory ring 200 the problem of being flared shift, improve the quality stability of memory ring 200, reduce
Production cost.In the present embodiment, the pipe fitting 100 has insertion end, has reverse hook teeth 110 in the insertion end of pipe fitting 100.
As shown in figure 8, another embodiment provides a kind of pipe fitting connecting method, using the flaring connecting positioning sleeve 400,
Include the following steps：
S1：As shown in Fig. 2, memory ring 200 is sheathed on the outer wall of ontology 410 so that memory ring 200 is located at described
It, will be on the outer wall that the connecting pin that ontology 410 is sheathed on tubing 300 be covered between anti-tripping 430 and the outer detent 440；
S2：As shown in figure 3, the connecting pin for expanding tubing 300 makes the connecting pin of tubing 300 generate widened taper, set
The interior detent 420 of the second end of ontology 410 carries out stop, and the flaring connecting positioning sleeve 400 is made to remain to be fixed on tubing 300
At connecting pin, the outer detent 440 for being flared the first end of connecting positioning sleeve 400 carries out stop to memory ring 200 so that memory ring
200 are fixed in expansion on set ontology 410；
S3：As shown in Figure 1, the insertion end of pipe fitting 100 is put into inside tubing 300, the connecting pin of tubing 300 and memory
Ring 200, which is shunk, completes connection.
The pipe fitting connecting method can effectively solve the problem that memory ring 200 the problem of being flared shift, improves memory ring
200 quality stability, reduces production cost.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of flaring connecting positioning sleeve, which is characterized in that including covering ontology, the inner wall of the set ontology is for outer with tubing
Wall matches, and for being matched with the inner wall of memory ring, the inner wall of the first end of the set ontology is equipped with the outer wall of the set ontology
Interior detent, the outer wall of the first end of the set ontology are equipped with anti-tripping, and the outer wall of second end of the set ontology is equipped with
Outer detent.
2. flaring connecting positioning sleeve according to claim 1, which is characterized in that the inner wall of the set ontology, which is equipped with, to be fixed
Muscle, the shortest distance a between the fixing muscle and the axis of the set ontology are less than the maximum gauge b of the reverse hook teeth of pipe fitting.
3. flaring connecting positioning sleeve according to claim 2, which is characterized in that the fixing muscle be it is a plurality of, it is a plurality of described
Fixing muscle is on the inner wall that the axis of the set ontology is distributed in the set ontology.
4. flaring connecting positioning sleeve according to claim 2, which is characterized in that it is described set ontology outer wall on it is described
Fixing muscle corresponding section is equipped with drag reduction slot.
5. flaring connecting positioning sleeve according to claim 1, which is characterized in that the interior detent, outer detent and
At least one of anti-tripping is annular projection structure.
6. being flared connecting positioning sleeve according to claim 1-5 any one of them, which is characterized in that the second end of the set ontology
Inside be rounding corner structure.
7. being flared connecting positioning sleeve according to claim 1-5 any one of them, which is characterized in that the flaring connecting positioning sleeve is
PE materials or plastic material.
8. flaring connecting positioning sleeve according to claim 7, which is characterized in that the flaring connecting positioning sleeve is used and is molded into
Type.
9. a kind of connecting pipe, which is characterized in that described in pipe fitting, memory ring, tubing and claim any one of 1-8
Flaring connecting positioning sleeve, it is described flaring connecting positioning sleeve be used for be set in the tubing connecting pin outside, the memory
Ring is used to be set in the outside of the set ontology, and the memory ring is located at described anti-tripping between the outer detent, institute
State connecting pin of the pipe fitting for being inserted into the tubing.
10. a kind of pipe fitting connecting method, which is characterized in that using such as the flaring connection positioning of claim 1-8 any one of them
Set, includes the following steps：
Memory ring is sheathed on the outer wall of ontology so that memory ring be located at it is described anti-tripping between the outer detent,
It will be on the outer wall that the connecting pin that ontology is sheathed on tubing be covered；
The connecting pin for expanding tubing makes the connecting pin of tubing generate widened taper, and the interior stop for covering the second end of ontology is tipped in
Whereabouts are dynamic, and the flaring connecting positioning sleeve is made to remain to be fixed at the connecting pin of tubing, are flared the outer of the first end of connecting positioning sleeve
Detent carries out stop to memory ring so that memory ring is fixed in expansion on set ontology；
The insertion end of pipe fitting is put into inside tubing, the connecting pin of tubing and memory ring shrink and complete connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810260764.2A CN108317315B (en) | 2018-03-27 | 2018-03-27 | Flaring connection positioning sleeve, connection pipe fitting and pipe fitting connection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810260764.2A CN108317315B (en) | 2018-03-27 | 2018-03-27 | Flaring connection positioning sleeve, connection pipe fitting and pipe fitting connection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108317315A true CN108317315A (en) | 2018-07-24 |
| CN108317315B CN108317315B (en) | 2023-12-29 |
Family
ID=62899305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810260764.2A Active CN108317315B (en) | 2018-03-27 | 2018-03-27 | Flaring connection positioning sleeve, connection pipe fitting and pipe fitting connection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108317315B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5228721A (en) * | 1990-06-25 | 1993-07-20 | James Hardie Plumbing & Pipelines Pty. Limited | Pipe fitting |
| JP2004324677A (en) * | 2003-04-22 | 2004-11-18 | Awaji Sangyo Kk | Method and structure for joining metallic member |
| CN104121434A (en) * | 2013-04-25 | 2014-10-29 | 和正丰科技股份有限公司 | Pipe joint for preventing pipe fitting and pipe joint from loosening |
| CN107401647A (en) * | 2017-08-15 | 2017-11-28 | 日丰企业（佛山）有限公司 | Pipe fitting connecting method and attachment structure |
| CN107489831A (en) * | 2017-06-23 | 2017-12-19 | 成都飞机工业（集团）有限责任公司 | A kind of memorial alloy pipe joint |
| US20180066784A1 (en) * | 2016-09-02 | 2018-03-08 | Zurn Industries, Llc | Extruded Cold-Expansion Compression Collar |
| CN208169739U (en) * | 2018-03-27 | 2018-11-30 | 日丰企业（佛山）有限公司 | It is flared connecting positioning sleeve and connecting pipe |
-
2018
- 2018-03-27 CN CN201810260764.2A patent/CN108317315B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5228721A (en) * | 1990-06-25 | 1993-07-20 | James Hardie Plumbing & Pipelines Pty. Limited | Pipe fitting |
| JP2004324677A (en) * | 2003-04-22 | 2004-11-18 | Awaji Sangyo Kk | Method and structure for joining metallic member |
| CN104121434A (en) * | 2013-04-25 | 2014-10-29 | 和正丰科技股份有限公司 | Pipe joint for preventing pipe fitting and pipe joint from loosening |
| US20180066784A1 (en) * | 2016-09-02 | 2018-03-08 | Zurn Industries, Llc | Extruded Cold-Expansion Compression Collar |
| CN107489831A (en) * | 2017-06-23 | 2017-12-19 | 成都飞机工业（集团）有限责任公司 | A kind of memorial alloy pipe joint |
| CN107401647A (en) * | 2017-08-15 | 2017-11-28 | 日丰企业（佛山）有限公司 | Pipe fitting connecting method and attachment structure |
| CN208169739U (en) * | 2018-03-27 | 2018-11-30 | 日丰企业（佛山）有限公司 | It is flared connecting positioning sleeve and connecting pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108317315B (en) | 2023-12-29 |
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