CN108952794A - A kind of mine gas drainage pipeline - Google Patents
A kind of mine gas drainage pipeline Download PDFInfo
- Publication number
- CN108952794A CN108952794A CN201810772946.8A CN201810772946A CN108952794A CN 108952794 A CN108952794 A CN 108952794A CN 201810772946 A CN201810772946 A CN 201810772946A CN 108952794 A CN108952794 A CN 108952794A
- Authority
- CN
- China
- Prior art keywords
- block
- connector
- pipeline
- connecting tube
- axis
- 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.)
- Pending
Links
- 239000000565 sealant Substances 0.000 claims description 9
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002421 anti-septic effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses a kind of mine gas drainage pipelines, including two pipeline bodies and connecting tube, two pipeline body screw threads are socketed in connecting tube, the junction of two pipeline bodies is equipped with connector, the connector screw thread is socketed in connecting tube, the connector is equipped with arc groove, multiple adjusting blocks are inserted in the arc groove, one end of the adjusting block is threadedly coupled with pipeline body, the side of the arc groove is equipped with sliding rail, sliding block is connected in the sliding rail, the sliding block is fixedly connected with adjusting block, pulley is rotatably connected on the sliding block, the pulley is slidably connected with sliding rail.Operation of the present invention is simple, pass through the mutual cooperation of pipeline body, connecting tube, connector and adjusting block, pipeline realizes mutual connection from internal, it can effectively avoid since pipeline junction inner wall is excessively thin, or simple two pipeline threads connection is unstable, it avoids falling off between two pipelines, so that gas is revealed.
Description
Technical field
The present invention relates to coal mine technical field of operation more particularly to a kind of mine gas drainage pipelines.
Background technique
Coal bed methane extraction pipe has following several pipelines: polyethylene pipe, polyvinyl chloride pipe, common steel tube, leaching modeling at present
Plastic-coated steel is wanted though its corrosion-resistant anti-flammability of polyethylene, polyvinyl chloride and antistatic property are extremely difficult to require even if reaching
It asks also because its additive excessively influences pipe workpiece quality, ordinary steel is then because of heavier-weight, and installation production has biggish inconvenience, now
Generally it will use coating spiral corrugated steel pipes, coating spiral corrugated steel pipes weight ratio common steel tube is light, and physique structure is fixed, ring
Rigidity, anti-suction strength are high, and inside and outside special PE coating protects internal steel pipe non-corrosive, and corrosion-resistant, antistatic property is strong, collide friction
No-spark, flame retardant property is good, but steel modeling bound fraction is very mature since domestic technique is not yet, between steel pipe and steel pipe
Junction is easy to appear the situation being not connected firmly, and simple thread connecting mode is easy since threaded connection place pressure is excessive,
And inner wall of the pipe leads to thread failure, to pipeline junction delamination or leak source phenomenon occur, gas is caused to convey than relatively thin
Leakage.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, such as: connecting between existing steel pipe is all
It is realized, is easy since inner wall of the pipe is relatively thin and pressure considerations lead to thread failure by way of single threaded connection, and mentioned
A kind of mine gas drainage pipeline out.
To achieve the goals above, present invention employs following technical solutions:
A kind of mine gas drainage pipeline, including two pipeline bodies and connecting tube, two pipeline body thread bush
It connects in connecting tube, the junction of two pipeline bodies is equipped with connector, and the connector screw thread is socketed in connecting tube
On, the connector is equipped with arc groove, is inserted with multiple adjusting blocks, one end of the adjusting block and pipeline in the arc groove
Ontology is threadedly coupled, and the side of the arc groove is equipped with sliding rail, and sliding block is connected in the sliding rail, and the sliding block and adjusting block are solid
It is fixed to connect, it is rotatably connected to pulley on the sliding block, the pulley is slidably connected with sliding rail, and the connector includes a pair of of arc
The both ends of body, two arc bodies are clamped respectively, and the junction of two arc bodies is equipped with fixed mechanism, the fixed machine
Structure includes the second fixed block and the first fixed block, one end of first fixed block and the second fixed block with connector is fixed connects
Connect, the second fixing axle be inserted in second fixed block, be inserted with connector sleeve in first fixed block, the connector sleeve with
Bindiny mechanism is equipped between second fixing axle.
Preferably, the bindiny mechanism includes shifting axle and slotting axis, and the connector sleeve passes through the first fixed block and is plugged in the
On two fixed blocks, one end of the slotting axis is fixedly connected with the second fixing axle, is equipped with card slot in the connector sleeve, the slotting axis and
Shifting axle is plugged in card slot, and the described one end of slotting axis far from the second fixing axle is symmetrically rotatably connected to a pair of of axis, and two
The junction of the axis is socketed with second spring, and the axis and connector sleeve are clamped, and the two sides of the shifting axle are symmetrically fixed
It is connected with spring block, the connector sleeve is equipped with the first spring corresponding with spring block, and the spring block is slidably connected at first
In spring, sliding slot is equipped in first spring, the sliding slot is fixedly connected with spring block, and the lower end of the shifting axle, which is equipped with, to be moved
Motion block.
Preferably, the outside of the connecting tube is equipped with limited block, and the connector is equipped with limit corresponding with limited block
Slot, the limited block and limiting slot are clamped.
Preferably, it is equipped with sealant between the connector and pipeline body, also is provided between two arc bodies close
Sealing, the material of the sealant are antiseptic rubber.
Preferably, the oblique type block in one end of one of them arc body, one end of another arc body be equipped with it is oblique
The corresponding drift slot of type block, the oblique type block and drift slot sliding are clamped.
Preferably, handle, the multiple one end of the adjusting block far from connecting tube are symmetrically arranged on the inner wall of the connecting tube
Connecting shaft is installed by buckle, two adjusting blocks pass through connection axis connection.
Compared with prior art, the beneficial effects of the present invention are: the device is easy to operate, by pipeline body, connecting tube,
The mutual cooperation of connector and adjusting block, pipeline are realized mutual connection from internal, can effectively be avoided due to pipeline junction
Inner wall is excessively thin, or simple two pipeline threads connection is unstable, avoids falling off between two pipelines, so that gas is let out
Dew.
Detailed description of the invention
Fig. 1 is a kind of positive structural schematic diagram of mine gas drainage pipeline proposed by the present invention；
Fig. 2 is a kind of structural schematic diagram of mine gas drainage pipeline side proposed by the present invention；
Fig. 3 is the structural schematic diagram in Fig. 2 at A.
In figure: 1 connector, 2 pipeline bodies, 3 adjusting blocks, 4 connecting tubes, 5 sliding blocks, 6 pulleys, 7 slotting axis, 8 axis, 9 connections
Set, 10 movable blocks, 11 shifting axles, 12 spring blocks, 13 first springs, 14 sliding slots, 15 card slots, 16 first fixed blocks, 17 second are consolidated
Determine block, 18 second fixing axles.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
Referring to Fig.1-3, a kind of mine gas drainage pipeline, including two pipeline bodies 2 and connecting tube 4, two pipeline sheets
2 screw thread of body is socketed in connecting tube 4, and the junction of two pipeline bodies 2 is equipped with connector 1, and 1 screw thread of connector is socketed in company
On adapter tube 4, connector 1 is equipped with arc groove, is inserted with multiple adjusting blocks 3, one end of adjusting block 3 and pipeline body in arc groove
2 are threadedly coupled, and the side of arc groove is equipped with sliding rail, are connected with sliding block 5 in sliding rail, sliding block 5 is fixedly connected with adjusting block 3, sliding block 5
On be rotatably connected to pulley 6, pulley 6 is slidably connected with sliding rail, and connector 1 includes a pair of of arc body, the both ends of two arc bodies
It is clamped respectively, the junction of two arc bodies is equipped with fixed mechanism, and fixed mechanism includes the second fixed block 17 and the first fixed block
16, one end of the first fixed block 16 and the second fixed block 17 is fixedly connected with connector 1, and the outside of connecting tube 4 is equipped with limit
Block, connector 1 are equipped with limiting slot corresponding with limited block, and limited block and limiting slot are clamped, and limited block plays the role of limit,
Maximum range of activities opposite between connector 1 and connecting tube 4 are controlled, are symmetrically arranged with handle, multiple tune on the inner wall of connecting tube 4
The one end of locking nub 3 far from connecting tube 4 is equipped with connecting shaft by buckle, and two adjusting blocks 3 pass through connection by connection axis connection
The each adjusting block 3 of axis connection, so that the sliding of one of adjusting block 3 can drive the sliding of other adjusting blocks 3, connecting tube 4
When installation it can be equipped with sealant between connector 1 and pipeline body 2, also set between two arc bodies by handle
There are sealant, the oblique type block in one end of one of arc body, one end of another arc body is equipped with corresponding oblique with oblique type block
Slot, oblique type block and drift slot sliding are clamped, and the inclined-plane mode that vertical plane connects compared with inclined-plane snap fit is more firm, close
Envelope property is more preferable, and the material of sealant is antiseptic rubber, and sealant plays the role of sealing, and what it is due to the conveying of pipeline body 2 is gas
Body needs to guarantee the good leakproofness of junction, and the second fixing axle 18, the first fixed block 16 are inserted in the second fixed block 17
It is inside inserted with connector sleeve 9, bindiny mechanism is equipped between connector sleeve 9 and the second fixing axle 18, bindiny mechanism includes 11 He of shifting axle
Axis 7 is inserted, connector sleeve 9 passes through the first fixed block 16 and is plugged on the second fixed block 17, and one end and the second fixing axle 18 for inserting axis 7 are solid
Fixed connection, connector sleeve 9 is interior to be equipped with card slot 15, inserts axis 7 and shifting axle 11 is plugged in card slot 15, it is fixed far from second to insert axis 7
One end of axis 18 is symmetrically rotatably connected to a pair of of axis 8, and the junction of two axis 8 is socketed with second spring, axis 8 with connect
9 clamping of set, the two sides of shifting axle 11 are symmetrically fixedly connected with spring block 12, and connector sleeve 9 is equipped with corresponding with spring block 12 the
One spring 13, spring block 12 are slidably connected in the first spring 13, are equipped with sliding slot 14, sliding slot 14 and spring block in the first spring 13
12 are fixedly connected, and the lower end of shifting axle 11 is equipped with movable block 10, when needing to fix the first fixed block 16 and the second fixed block 17
When, connector sleeve 9 is passed through into the first fixed block 16, the slotting axis 7 of 18 one end of the second fixing axle is plugged in card slot 15, two axis
8 connect and fix with connector sleeve 9 under the effect of elasticity, when needing to take out the second fixing axle 18, by pushing shifting axle 11,
One end of shifting axle 11 acts on two axis 8, so that two axis 8 are relatively rotated and are detached from connector sleeve 9, to realize second
The disengaging of fixing axle 18 and connector sleeve 9, wherein the first spring 13 guarantees that shifting axle 11 is not made axis 8 when not by external force
With.
In the present invention, when user uses the device, first 4 screw thread of connecting tube is inserted in one of in pipeline body 2, it will
Connector 1 is socketed in one end of the pipeline body 2, is socketed between connector 1 and connecting tube 4 by another pipeline body 2,
Connection is successively realized, when needing to be dismantled intermediate a certain section, by pushing shifting axle 11, one end of shifting axle 11
Two axis 8 are acted on so that two axis 8 are relatively rotated and are detached from connector sleeve 9, thus realize the second fixing axle 18 with connect
The disengaging of set 9, by mobile adjusting block 3, adjusting block 3 is slided on connector 1 by pulley 6, due to adjusting block 3 and connecting tube
4 are threadedly coupled, so that connecting tube 4 is gradually removed from one of pipeline body 2, by pushing shifting axle 11, shifting axle 11
One end two axis 8 are acted on be detached from so that two axis 8 are relatively rotated with connector sleeve 9, to realize the second fixing axle 18
With the disengaging of connector sleeve 9, connector 1 is divided into two parts, so that two pipeline bodies 2 are mutually disengaged, without
It needs to destroy total.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of mine gas drainage pipeline, including two pipeline bodies (2) and connecting tube (4), two pipeline bodies (2)
Screw thread is socketed on connecting tube (4), which is characterized in that and the junction of two pipeline bodies (2) is equipped with connector (1),
Connector (1) screw thread is socketed on connecting tube (4), and the connector (1) is equipped with arc groove, is plugged in the arc groove
Have multiple adjusting blocks (3), one end of the adjusting block (3) is threadedly coupled with pipeline body (2), and the side of the arc groove is equipped with
Sliding rail is connected with sliding block (5) in the sliding rail, and the sliding block (5) is fixedly connected with adjusting block (3), rotates on the sliding block (5)
It is connected with pulley (6), the pulley (6) is slidably connected with sliding rail, and the connector (1) includes a pair of of arc body, described in two
The both ends of arc body are clamped respectively, and the junction of two arc bodies is equipped with fixed mechanism, and the fixed mechanism includes second
One end of fixed block (17) and the first fixed block (16), first fixed block (16) and the second fixed block (17) is and connector
(1) it is fixedly connected, is inserted with the second fixing axle (18) in second fixed block (17), plugged in first fixed block (16)
Have connector sleeve (9), bindiny mechanism is equipped between the connector sleeve (9) and the second fixing axle (18).
2. a kind of mine gas drainage pipeline according to claim 1, which is characterized in that the bindiny mechanism includes movement
Axis (11) and slotting axis (7), the connector sleeve (9) pass through the first fixed block (16) and are plugged on the second fixed block (17), described to insert
One end of axis (7) is fixedly connected with the second fixing axle (18), is equipped with card slot (15) in the connector sleeve (9), the slotting axis (7) and
Shifting axle (11) is plugged in card slot (15), and the slotting axis (7) is symmetrically rotatablely connected far from the one end of the second fixing axle (18)
Have a pair of of axis (8), the junction of two axis (8) is socketed with second spring, and the axis (8) and connector sleeve (9) are blocked
It connects, the two sides of the shifting axle (11) are symmetrically fixedly connected with spring block (12), and the connector sleeve (9) is equipped with and spring block
(12) corresponding first spring (13), the spring block (12) are slidably connected in the first spring (13), first spring
(13) sliding slot (14) are equipped in, the sliding slot (14) is fixedly connected with spring block (12), and the lower end of the shifting axle (11) is equipped with
Movable block (10).
3. a kind of mine gas drainage pipeline according to claim 1, which is characterized in that the outside of the connecting tube (4)
Equipped with limited block, the connector (1) is equipped with limiting slot corresponding with limited block, and the limited block and limiting slot are clamped.
4. a kind of mine gas drainage pipeline according to claim 1, which is characterized in that the connector (1) and pipeline
It is equipped with sealant between ontology (2), sealant also is provided between two arc bodies, the material of the sealant is anti-corrosion rubber
Glue.
5. a kind of mine gas drainage pipeline according to claim 1, which is characterized in that one of them arc body
One end of the oblique type block in one end, another arc body is equipped with drift slot corresponding with oblique type block, the oblique type block and drift slot
Sliding clamping.
6. a kind of mine gas drainage pipeline according to claim 1, which is characterized in that the inner wall of the connecting tube (4)
On be symmetrically arranged with handle, the one end of multiple adjusting blocks (3) far from connecting tube (4) is equipped with connecting shaft by buckle, two
The adjusting block (3) passes through connection axis connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810772946.8A CN108952794A (en) | 2018-07-14 | 2018-07-14 | A kind of mine gas drainage pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810772946.8A CN108952794A (en) | 2018-07-14 | 2018-07-14 | A kind of mine gas drainage pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108952794A true CN108952794A (en) | 2018-12-07 |
Family
ID=64481145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810772946.8A Pending CN108952794A (en) | 2018-07-14 | 2018-07-14 | A kind of mine gas drainage pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108952794A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9512944B1 (en) * | 2015-05-06 | 2016-12-06 | Mirko Buzdum | Flange clamp with an automatic fail safe |
| CN107893888A (en) * | 2017-12-15 | 2018-04-10 | 吴忠市通惠机械制造有限公司 | A kind of snap joint |
| JP2018059578A (en) * | 2016-10-06 | 2018-04-12 | 株式会社三桂製作所 | Waterproof pipe joint |
| CN207333960U (en) * | 2017-07-28 | 2018-05-08 | 高永强 | A kind of adjustable petroleum pipeline fixed frame |
| CN207378328U (en) * | 2017-10-12 | 2018-05-18 | 浙江中尔阀门有限公司 | A kind of multifunctional water heating pipe fitting |
| DE102016223308A1 (en) * | 2016-11-24 | 2018-05-24 | Contitech Mgw Gmbh | plug-in coupling |
| CN207406922U (en) * | 2017-11-15 | 2018-05-25 | 丁通 | A kind of automobile using stainless steel enhancing pad |
| CN207569352U (en) * | 2017-11-14 | 2018-07-03 | 成都淦耀科技有限公司 | A kind of petroleum gas industrial flexible composite high pressure pipeline |
| CN108278445A (en) * | 2017-12-06 | 2018-07-13 | 天津蚂蚁科技有限公司 | A kind of installation fixed equipment for thermal insulation material |
-
2018
- 2018-07-14 CN CN201810772946.8A patent/CN108952794A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9512944B1 (en) * | 2015-05-06 | 2016-12-06 | Mirko Buzdum | Flange clamp with an automatic fail safe |
| JP2018059578A (en) * | 2016-10-06 | 2018-04-12 | 株式会社三桂製作所 | Waterproof pipe joint |
| DE102016223308A1 (en) * | 2016-11-24 | 2018-05-24 | Contitech Mgw Gmbh | plug-in coupling |
| CN207333960U (en) * | 2017-07-28 | 2018-05-08 | 高永强 | A kind of adjustable petroleum pipeline fixed frame |
| CN207378328U (en) * | 2017-10-12 | 2018-05-18 | 浙江中尔阀门有限公司 | A kind of multifunctional water heating pipe fitting |
| CN207569352U (en) * | 2017-11-14 | 2018-07-03 | 成都淦耀科技有限公司 | A kind of petroleum gas industrial flexible composite high pressure pipeline |
| CN207406922U (en) * | 2017-11-15 | 2018-05-25 | 丁通 | A kind of automobile using stainless steel enhancing pad |
| CN108278445A (en) * | 2017-12-06 | 2018-07-13 | 天津蚂蚁科技有限公司 | A kind of installation fixed equipment for thermal insulation material |
| CN107893888A (en) * | 2017-12-15 | 2018-04-10 | 吴忠市通惠机械制造有限公司 | A kind of snap joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209557802U (en) | Dual-pipe clamp | |
| CN209385894U (en) | A kind of combined type elbow pressure balanced compensator | |
| CN108952794A (en) | A kind of mine gas drainage pipeline | |
| CN207406944U (en) | It is a kind of to dismount easily combustion gas pipe fitting | |
| CN201243181Y (en) | Connector | |
| CN203963366U (en) | Full external pressure straight-tube pressure balanced compensator | |
| CN205136895U (en) | Drain pipe expansion joint | |
| CN203963368U (en) | The inside and outside straight-tube pressure balanced compensator of pressing | |
| CN206189745U (en) | Housing construction steel bar connection structure | |
| CN208735088U (en) | A kind of tee tube for reinforcing fastening | |
| CN204213558U (en) | Buckled heat-insulating pipe joint | |
| CN209164839U (en) | A kind of copper pipe connector of high reliablity | |
| CN208365015U (en) | A kind of novel double flange limit expansion joints | |
| CN201621346U (en) | Two-piece type press-fitting ball valve | |
| CN209569427U (en) | A kind of dust collection pipe fitting | |
| CN205606040U (en) | Formula play faucet structure is inhaled to magnetism for water purifier | |
| CN202914953U (en) | Saddle-shaped sample joint and interface device | |
| CN219120061U (en) | But quick connect's person in charge tee bend | |
| CN215294055U (en) | Bamboo joint type plastic corrugated pipe | |
| CN203442392U (en) | Tee pipe coupling with inner threaded bushing | |
| CN211649401U (en) | Multi-channel steel pipe and joint thereof | |
| CN217108663U (en) | Double-ball compensation joint | |
| CN205117919U (en) | Nonrust steel pipe and stainless steel pipe assembly | |
| CN208253022U (en) | A kind of binary channel metal bellows | |
| CN219221580U (en) | Hydraulic pipe rotary joint |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181207 |
|
| WD01 | Invention patent application deemed withdrawn after publication |