CN107883101A - A kind of electric smelting bypasses saddle type - Google Patents
A kind of electric smelting bypasses saddle type Download PDFInfo
- Publication number
- CN107883101A CN107883101A CN201711080424.3A CN201711080424A CN107883101A CN 107883101 A CN107883101 A CN 107883101A CN 201711080424 A CN201711080424 A CN 201711080424A CN 107883101 A CN107883101 A CN 107883101A
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- China
- Prior art keywords
- pipe fitting
- straight
- saddle type
- knife bar
- cutter head
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Classifications
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- 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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
- F16L41/082—Non-disconnectible joints, e.g. soldered, adhesive or caulked joints
- F16L41/084—Soldered joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of electric smelting to bypass saddle type, it is related to electric melting pipe fittings field, including saddle type main body, the straight-through pipe fitting stood in saddle type main body, bypass pipe fitting, the sealed end cap, the tool rest in straight-through pipe fitting and the boring cutter on tool rest located at straight-through pipe port being laterally located on straight-through pipe fitting, the first co-axial sleeve joint hole is offered on tool rest；The boring cutter includes knife bar and big cutter head, the knife bar and the first sleeve joint hole match socket, big cutter head is fixed on knife bar lower end and is coaxially disposed with knife bar, straight-through tube intracavity on the upside of bypass pipe fitting interface is to put knife cavity, straight-through tube intracavity on the downside of bypass pipe fitting interface is test cavity, a rotatory sealing plug is provided with the test cavity, the second co-axial sleeve joint hole is offered on the knife bar, a torsion bar is provided with second sleeve joint hole.For the present invention in order to solve the above problems, proposition is a kind of to carry sealing property test function and easy to operate electric smelting bypass saddle type.
Description
Technical field
The present invention relates to electric melting pipe fittings field, more particularly to a kind of electric smelting bypass saddle type.
Background technology
Polyethylene tube because its environmental protection, corrosion resistance is strong the advantages that, be used in extensively in buried pipeline engineering.
In steel gas pipe underground work, it is sometimes desirable to which the connecting bypass pipe on gas pipeline, traditional method are that first gas pipeline is carried out
Stop the supple of gas or steam, cut off gas pipeline, a three-way connection is installed, then bypass pipe fitting is connected on three-way connection, but stop the supple of gas or steam for
Buried pipeline Effects on Engineering scope is big, and economic loss is more；With the improvement of technology, the way of present main flow is to use a kind of nothing
The electric smelting bypass saddle type that need to be stopped the supple of gas or steam, referring to following patent：Patent name is " electric-melting saddle-shaped three-way pipe fitting for being used for buried pipeline ",
Authorization Notice No. is CN201688069U, and authorized announcement date is on December 29th, 2010, and it includes：The collet of bottom, top
Saddle type main body, the boring device in saddle type main body, and the sealing device located at saddle type main body upper end, the boring device
Including bore cutter.It, first with the pipeline external surface welding in use, is reused interior by the heating wire on saddle type body inner surface
Bypass pipe is drawn in the perforate on pipeline of the boring device in portion.Above-mentioned electric-melting saddle-shaped is drawn bypass pipe to the pipeline in use and brought
Greatly facilitate, still, its with after pipeline external surface welding, the sealing of weld is difficult to ensure, if welding is unqualified
Leak, it will cause greatly potential safety hazard and loss.Therefore, electric-melting saddle-shaped after pipeline external surface welding with being required for
Tested by sealing property, and current electric-melting saddle-shaped does not carry sealing property test function, need to such as be set by external testing
Standby, operation is more inconvenient.
The content of the invention
The present invention proposes a kind of carry by sealing property test function and easy to operate electric smelting to solve the above problems
Logical saddle type.
To achieve these goals, the present invention uses following technical scheme：A kind of electric smelting bypasses saddle type, including saddle type master
Body, the inner surface of the saddle type main body are provided with the first heating wire, and the outer surface of saddle type main body is provided with two the first terminals
Son, two the first binding posts electrically connect with the first heating wire both ends respectively；Also include stand in saddle type main body straight-through pipe fitting,
Laterally it is located at the bypass pipe fitting on straight-through pipe fitting, the sealed end cap located at straight-through pipe port, the tool rest in straight-through pipe fitting
And the boring cutter on tool rest, the tool rest and straight-through pipe fitting are provided with the to be fixedly connected, between tool rest and straight-through pipe fitting
One sealing ring, the first co-axial sleeve joint hole is offered on tool rest；The boring cutter includes knife bar and big cutter head, the knife bar
Match socket with the first sleeve joint hole, the second sealing ring is provided between knife bar and the first sleeve joint hole, the big cutter head is endless knife
Head, big cutter head are fixed on knife bar lower end and are coaxially disposed with knife bar, pass through screw thread between big cutter head outer wall and straight-through pipe fitting inner wall
Connection；Straight-through tube intracavity on the upside of bypass pipe fitting interface is straight-through on the downside of bypass pipe fitting interface to put knife cavity
Tube intracavity is test cavity, is provided with a rotatory sealing plug in the test cavity, is set on the periphery of the rotatory sealing plug
There is thread segment, the thread segment coordinates with test cavity inner wall screw thread, and the 3rd is additionally provided with the periphery of the rotatory sealing plug
Sealing ring, the 3rd sealing ring coordinate with test cavity inner wall sealing；Co-axial second set is offered on the knife bar
Connect hole, a torsion bar is provided with second sleeve joint hole, be provided with the 4th sealing ring between the torsion bar and the second sleeve joint hole, under torsion bar
Hold and be provided with the polygonal socket that can coordinate with the grafting of polygon connection-peg beyond the Great Wall for a polygon connection-peg, the rotatory sealing.
Preferably, the boring cutter also includes a small bit tool, the small bit tool is also annular cutter head, and small bit tool is positioned at big
It is coaxially disposed below cutter head and with big cutter head, small bit tool external diameter is less than big head outer diameter.
Preferably, the upper end of the knife bar is provided with interior hexagonal jack, the upper end of the torsion bar also is provided with interior hexagonal jack.
Preferably, the sealed end cap inwall is circumferentially with the second heating wire, sealed end cap outer wall is provided with two second
Binding post, two the second binding posts electrically connect with the second heating wire both ends respectively.
Preferably, open up a peep hole on sealed end cap outer wall corresponding to the second electric heating absorption filament-coiling area.
Therefore, the present invention has the advantages that：1st, sealing performance testing machine structure is carried, treats that electric-melting saddle-shaped is molten with pipeline
Solution finishes, and can carry out weld sealing property detection；2nd, surveyed using double-pole header structure, downside small bit tool for auxiliary seal performance
Examination；3rd, it is compact-sized, easy to operate, without match somebody with somebody sealing property equipment outside, raising pipeline engineering installation effectiveness.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of saddle type main body in the present invention, straight-through pipe fitting and bypass pipe fitting.
Fig. 3 is the structural representation of tool rest in the present invention.
Fig. 4 is the structural representation of boring cutter in the present invention.
Fig. 5 is the structural representation of rotatory sealing plug in the present invention.
Fig. 6 is the structural representation of torsion bar in the present invention.
Fig. 7 is the structural representation of sealed end cap in the present invention.
Fig. 8 is the structural representation of use state of the present invention.
Fig. 9 is the enlarged diagram at A in Fig. 8.
1：Saddle type main body；101：First heating wire；2：Straight-through pipe fitting；201：Put knife cavity；202：Test cavity；3：Bypass
Pipe fitting；4：Sealed end cap；401：Second heating wire；402：Second binding post；403：Peep hole；5：Tool rest；501：First set
Connect hole；502：First sealing ring；6：Boring cutter；601：Knife bar；602：Big cutter head；603：Small bit tool；604：Second sleeve joint hole；
605：Second sealing ring；7：Rotatory sealing plug；701：Thread segment；702：3rd sealing ring；703：Polygonal socket；8：Torsion bar；
801：Polygon connection-peg；802：4th sealing ring；9：Interior hexagonal jack；10：Gas pipeline with pressure；11：Saddle type collet.
Embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
A kind of electric smelting bypasses saddle type, referring to Fig. 1 to Fig. 9, including saddle type main body 1, is set on the inner surface of the saddle type main body 1
Have the first heating wire 101, the first heating wire 101 be used for the tube wall welding of gas pipeline 10 with pressure, on the outer surface of saddle type main body 1
Provided with two the first binding posts, two the first binding posts electrically connect with the both ends of the first heating wire 101 respectively；Also include standing on
Straight-through pipe fitting 2, transverse direction in saddle type main body 1 are located at the bypass pipe fitting 3 on straight-through pipe fitting 2, the sealing located at the straight-through port of pipe fitting 2
Cap 4, the tool rest 5 in straight-through pipe fitting 2 and the boring cutter 6 on tool rest 5 are held, the tool rest 5 and straight-through pipe fitting 2 are solid
Fixed connection, is provided with the first sealing ring 502 between tool rest 5 and straight-through pipe fitting 2, the first sealing ring 502 is used to further ensure tool rest 5
Do not revealed between straight-through pipe fitting 2, the first co-axial sleeve joint hole 501 is offered on tool rest 5；The boring cutter 6 includes knife
Bar 601, big cutter head 602 and small bit tool 603, the sleeve joint hole 501 of knife bar 601 and first match socket, knife bar 601 and first
Be provided with the second sealing ring 605 between sleeve joint hole 501, the second sealing ring 605 be used to ensureing the sleeve joint hole 501 of knife bar 601 and first it
Between do not reveal, the upper end of knife bar 601 is provided with interior hexagonal jack 9, and interior hexagonal jack 9 is used to dock spanner rotation boring cutter 6.It is described
Big cutter head 602 and small bit tool 603 are annular cutter head, and big cutter head 602 and small bit tool 603 are each attached to the lower end of knife bar 601 and three
Person is coaxially disposed, and small bit tool 603 is less than the big external diameter of cutter head 602 positioned at the big lower section of cutter head 602, the external diameter of small bit tool 603.The machete
It is connected through a screw thread between first 602 outer wall and straight-through pipe fitting 2 inwall, big cutter head 602 can revolve along the screw thread on the straight-through inwall of pipe fitting 2
Turn lifting.
To put knife cavity 201, the tool rest 5, which is located at, puts knife sky for the inner chamber of straight-through pipe fitting 2 on the upside of the interface of bypass pipe fitting 3
In chamber 201, the inner chamber of straight-through pipe fitting 2 on the downside of the interface of bypass pipe fitting 3 is test cavity 202, is set in the test cavity 202
There is a rotatory sealing plug 7, the periphery of the rotatory sealing plug 7 is provided with thread segment 701, and the thread segment 701 is empty with test
The inner thread of chamber 202 coordinates, and rotatory sealing plug 7 can be along the test inner thread rotation and lifting of cavity 202, the rotatory sealing plug
The 3rd sealing ring 702 is additionally provided with 7 periphery, the 3rd sealing ring 702 coordinates with test cavity 202 inner wall sealing, protected
Hinder and do not revealed between the 3rd sealing ring 702 and test cavity 202.The second co-axial socket is offered on the knife bar 601
Hole 604, second sleeve joint hole 604 is interior to be provided with a torsion bar 8, and the 4th sealing is provided between the sleeve joint hole 604 of torsion bar 8 and second
Circle 802, the 4th sealing ring 802, which is used to ensure, not to be revealed between the sleeve joint hole 604 of torsion bar 8 and second, and the upper end of torsion bar 8 is provided with interior hexagonal
Jack 9, interior hexagonal jack 9 are used to dock inner hexagon spanner rotation torsion bar 8, and the lower end of torsion bar 8 is a polygon connection-peg 801, institute
State rotatory sealing plug 7 and be provided with the polygonal socket 703 that can coordinate with the grafting of polygon connection-peg 801.
The inwall of sealed end cap 4 is circumferentially with the second heating wire 401, and the second heating wire 401 is used for frit seal end cap 4
Inwall and the straight-through port outer wall of pipe fitting 2, the outer wall of sealed end cap 4 are provided with two the second binding posts 402, two the second binding posts
402 electrically connect with the both ends of the second heating wire 401 respectively, corresponding to the wrapping wire area of the second heating wire 401 on the outer wall of sealed end cap 4
A peep hole 403 is opened up, peep hole 403 is used to observe the welding feelings between the inwall of sealed end cap 4 and the port outer wall of straight-through pipe fitting 2
Condition.Whole sealed end cap 4 is used to block the straight-through upper port of pipe fitting 2, it is ensured that electric smelting bypass saddle type docks with gas pipeline 10 with pressure,
After perforate, it will not also be leaked to for a long time using gas in pipe or liquid from tool rest 5 or the gap location of boring cutter 6 outside pipe.
When installing and using, the face of weld of gas pipeline 10 with pressure is first cleaned out, and carries out dehumidification treatments, uniformly, entirely
The oxide layer of tubing face of weld to be welded is scraped off to face, thickness is 0.1 ~ 0.2mm, with absolute alcohol wiped clean solder side.Again
The saddle type main body 1 of electric-melting saddle-shaped is erected on gas pipeline 10 with pressure, a saddle type is installed in the downside of gas pipeline 10 with pressure again
Collet 11, respectively it is bolted between the both sides of saddle type main body 1 and the both sides of saddle type collet 11, it is ensured that the downside melting welding of saddle type main body 1
Face and the surface profiles of gas pipeline 10 with pressure, as shown in Figure 8.Bypass saddle type and fix completion, using electro-fusion welding machine to saddle type main body 1
Two the first binding posts on outer surface are powered, and carry out the electric fusion welding between saddle type main body 1 and gas pipeline with pressure 10.Weldering
Will maintain the original state sufficiently cool, cool time >=30 minute after the completion of connecing.After cooling, positioned at the downside of rotatory sealing plug 7
Test cavity 202 between the tube wall of gas pipeline 10 with pressure is in a sealing cavity.The inner hexagon spanner of adaptation is looked for insert torsion bar 8
The interior hexagonal jack 9 of upper end, pushes whole torsion bar 8, it is ensured that on the polygon connection-peg 801 and rotatory sealing plug 7 of the lower end of torsion bar 8
Polygonal socket 703 plug together, then rotate torsion bar 8, the rotation of torsion bar 8 can drive the rotation of rotatory sealing plug 7 to move down, compression rotation
Turning the test cavity 202 between the downside of sealing-plug 7 and the tube wall of gas pipeline with pressure 10, air pressure can raise in the test cavity 202,
It is set to be internally formed a testing high voltage.Can be by adjusting the backspin displacement of rotatory sealing plug 7, to adjust the survey in sealing cavity
Try atmospheric pressure value.By national standard or company standard, after pressurize certain time, the interior hexagonal for removing the interior hexagonal jack 9 of the upper end of torsion bar 8 is pulled
Hand, change and the inner hexagon spanner that hexagonal jack 9 is adapted in the upper end of knife bar 601, swivel knife carrier 601, under whole boring cutter 6 rotates
Move, small bit tool 603 first contacts with rotatory sealing plug 7 and cuts through rotatory sealing plug 7, and operating personnel can be by bypass pipe fitting 3
When hole judges that small bit tool 603 cuts through rotatory sealing plug 7 to observe, the downside of rotatory sealing plug 7 and the tube wall of gas pipeline 10 with pressure it
Between test cavity 202 in whether have high pressure draught leakage.If so, the downside melting welding face of explanation saddle type main body 1 and combustion gas with pressure
Pad No leakage between the tube wall of pipeline 10, welding are qualified；If not provided, the downside melting welding face of explanation saddle type main body 1 with it is with pressure
There is leakage in the pad between the tube wall of gas pipeline 10, welding is unqualified, need to dismantle welding again.If welding is qualified, behaviour
Making personnel then can be at the port of bypass pipe fitting 3 to connecting the required pipeline shunted.Treat that bypass pipe fitting 3 has docked with the pipeline shunted
To finish, continue rotation and move down boring cutter 6, small bit tool 603 can then cut through the tube wall of gas pipeline 10 with pressure in succession with big cutter head 602, this
When, gas pipeline 10 with pressure connects with bypass pipe fitting 3.After treating perforate, the revolution of boring cutter 6 is risen to and put in knife cavity 201
Initial position, it is ensured that the opening clear on gas pipeline 10 with pressure.Finally, sealed end is connected in the upper end set of straight-through pipe fitting 2
Cap 4, be powered using electro-fusion welding machine to two the second binding posts 402 on the outer wall of sealed end cap 4, carry out sealed end cap 4 with it is straight
Electric fusion welding between way pipe fitting 2, observed by peep hole 403 between the inwall of sealed end cap 4 and the port outer wall of straight-through pipe fitting 2
Welding situation, treat that welding, cooling finish the installation process completion of i.e. whole electric smelting bypass saddle type.
Claims (5)
1. a kind of electric smelting bypasses saddle type, including saddle type main body（1）, the saddle type main body（1）Inner surface be provided with the first electric heating
Silk（101）, saddle type main body（1）Outer surface be provided with two the first binding posts, two the first binding posts are respectively with first
Heating wire（101）Both ends electrically connect；Also include standing on saddle type main body（1）On straight-through pipe fitting（2）, laterally be located at straight-through pipe fitting
（2）On bypass pipe fitting（3）, located at straight-through pipe fitting（2）The sealed end cap of port（4）, located at straight-through pipe fitting（2）Interior tool rest
（5）And located at tool rest（5）On boring cutter（6）, the tool rest（5）With straight-through pipe fitting（2）To be fixedly connected, tool rest（5）With
Straight-through pipe fitting（2）Between be provided with the first sealing ring（502）, tool rest（5）On offer the first co-axial sleeve joint hole（501）；
The boring cutter（6）Including knife bar（601）With big cutter head（602）, the knife bar（601）With the first sleeve joint hole（501）Match
Socket, knife bar（601）With the first sleeve joint hole（501）Between be provided with the second sealing ring（605）, the big cutter head（602）For annular
Cutter head, big cutter head（602）It is fixed on knife bar（601）Lower end and and knife bar（601）It is coaxially disposed, big cutter head（602）Outer wall with it is straight
Way pipe fitting（2）It is connected through a screw thread between inwall, it is characterised in that：Positioned at bypass pipe fitting（3）Straight-through pipe fitting on the upside of interface（2）
Inner chamber is to put knife cavity（201）, positioned at bypass pipe fitting（3）Straight-through pipe fitting on the downside of interface（2）Inner chamber is test cavity（202）,
The test cavity（202）Inside it is provided with a rotatory sealing plug（7）, the rotatory sealing plug（7）Periphery be provided with thread segment
（701）, the thread segment（701）With testing cavity（202）Inner thread coordinates, the rotatory sealing plug（7）Periphery on
It is additionally provided with the 3rd sealing ring（702）, the 3rd sealing ring（702）With testing cavity（202）Inner wall sealing coordinates；The knife bar
（601）On offer the second co-axial sleeve joint hole（604）, second sleeve joint hole（604）Inside it is provided with a torsion bar（8）, institute
State torsion bar（8）With the second sleeve joint hole（604）Between be provided with the 4th sealing ring（802）, torsion bar（8）Lower end is a polygon connection-peg
（801）, the rotatory sealing plug（7）Being provided with can be with polygon connection-peg（801）The polygonal socket that grafting coordinates（703）.
A kind of 2. electric smelting bypass saddle type according to claim 1, it is characterised in that：The boring cutter（6）It is small also to include one
Cutter head（603）, the small bit tool（603）Also it is annular cutter head, small bit tool（603）Positioned at big cutter head（602）Lower section and and machete
Head（602）It is coaxially disposed, small bit tool（603）External diameter is less than big cutter head（602）External diameter.
A kind of 3. electric smelting bypass saddle type according to claim 1, it is characterised in that：The knife bar（601）Upper end be provided with
Interior hexagonal jack（9）, the torsion bar（8）Upper end also be provided with interior hexagonal jack（9）.
A kind of 4. electric smelting bypass saddle type according to claim 1, it is characterised in that：The sealed end cap（4）Inwall is circumferential
Provided with the second heating wire（401）, sealed end cap（4）Outer wall is provided with two the second binding posts（402）, two the second binding posts
（402）Respectively with the second heating wire（401）Both ends electrically connect.
A kind of 5. electric smelting bypass saddle type according to claim 4, it is characterised in that：Second heating wire（401）Wrapping wire
Sealed end cap corresponding to area（4）A peep hole is opened up on outer wall（403）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080424.3A CN107883101B (en) | 2017-11-06 | 2017-11-06 | Electric smelting bypass saddle shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080424.3A CN107883101B (en) | 2017-11-06 | 2017-11-06 | Electric smelting bypass saddle shape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107883101A true CN107883101A (en) | 2018-04-06 |
| CN107883101B CN107883101B (en) | 2023-07-14 |
Family
ID=61779007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711080424.3A Active CN107883101B (en) | 2017-11-06 | 2017-11-06 | Electric smelting bypass saddle shape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107883101B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538843A (en) * | 2019-01-08 | 2019-03-29 | 邹凯 | It is a kind of can branch natural gas line |
| CN109611632A (en) * | 2019-01-22 | 2019-04-12 | 济南市公明新技术开发有限公司 | A kind of pipeline with pressure aperture attachment device and construction technology |
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| JP2010210084A (en) * | 2009-02-12 | 2010-09-24 | Sekisui Chem Co Ltd | Saddle type branch joint |
| CN103672269A (en) * | 2013-12-11 | 2014-03-26 | 河北一塑管道制造有限责任公司 | Saddle-type bypass pressure tapping connecting device for delivery pipe |
| CN203979743U (en) * | 2014-07-04 | 2014-12-03 | 邢梓杉 | Plastic conveying and plastic drilling under pressure of pipeline electric-melting saddle-shaped bypass |
| CN104405991A (en) * | 2014-10-20 | 2015-03-11 | 邢梓杉 | Saddle-shaped punching device for plastic conveying pipeline and punching method thereof |
| CN104819356A (en) * | 2015-03-23 | 2015-08-05 | 浙江庆发管业科技有限公司 | Valve-carried PE hot melting saddle type bypass and mounting process |
| CN205208027U (en) * | 2015-12-21 | 2016-05-04 | 宁波恒元精工管阀科技有限公司 | Prevent back pressure saddle -type |
| CN205745845U (en) * | 2016-05-17 | 2016-11-30 | 南京斯凯汽车设备制造有限责任公司 | A kind of engine pipelines fast plugging device |
| CN207514468U (en) * | 2017-11-06 | 2018-06-19 | 宁波市宇华电器有限公司 | A kind of electric smelting bypasses saddle type |
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2017
- 2017-11-06 CN CN201711080424.3A patent/CN107883101B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010210084A (en) * | 2009-02-12 | 2010-09-24 | Sekisui Chem Co Ltd | Saddle type branch joint |
| CN103672269A (en) * | 2013-12-11 | 2014-03-26 | 河北一塑管道制造有限责任公司 | Saddle-type bypass pressure tapping connecting device for delivery pipe |
| CN203979743U (en) * | 2014-07-04 | 2014-12-03 | 邢梓杉 | Plastic conveying and plastic drilling under pressure of pipeline electric-melting saddle-shaped bypass |
| CN104405991A (en) * | 2014-10-20 | 2015-03-11 | 邢梓杉 | Saddle-shaped punching device for plastic conveying pipeline and punching method thereof |
| CN104819356A (en) * | 2015-03-23 | 2015-08-05 | 浙江庆发管业科技有限公司 | Valve-carried PE hot melting saddle type bypass and mounting process |
| CN205208027U (en) * | 2015-12-21 | 2016-05-04 | 宁波恒元精工管阀科技有限公司 | Prevent back pressure saddle -type |
| CN205745845U (en) * | 2016-05-17 | 2016-11-30 | 南京斯凯汽车设备制造有限责任公司 | A kind of engine pipelines fast plugging device |
| CN207514468U (en) * | 2017-11-06 | 2018-06-19 | 宁波市宇华电器有限公司 | A kind of electric smelting bypasses saddle type |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538843A (en) * | 2019-01-08 | 2019-03-29 | 邹凯 | It is a kind of can branch natural gas line |
| CN109538843B (en) * | 2019-01-08 | 2020-12-25 | 湖北钟格塑料管有限公司 | Branching natural gas pipeline |
| CN109611632A (en) * | 2019-01-22 | 2019-04-12 | 济南市公明新技术开发有限公司 | A kind of pipeline with pressure aperture attachment device and construction technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107883101B (en) | 2023-07-14 |
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Address after: 315414 No. 71, West Road, Hemudu Town, Yuyao City, Ningbo City, Zhejiang Province Applicant after: Ningbo Yuhua Industrial Co.,Ltd. Address before: 315414 No. 71, West Road, Hemudu Town, Yuyao City, Ningbo City, Zhejiang Province Applicant before: NINGBO YUHUA ELECTRIC APPLIANCE Co.,Ltd. |
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