CN106224645A - The collector pipe structure conveniently transported and bury underground - Google Patents
The collector pipe structure conveniently transported and bury underground Download PDFInfo
- Publication number
- CN106224645A CN106224645A CN201610755650.6A CN201610755650A CN106224645A CN 106224645 A CN106224645 A CN 106224645A CN 201610755650 A CN201610755650 A CN 201610755650A CN 106224645 A CN106224645 A CN 106224645A
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- CN
- China
- Prior art keywords
- collector pipe
- fixed seat
- lower fixed
- transported
- hole
- 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.)
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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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/01—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets for supporting or guiding the pipes, cables or protective tubing, between relatively movable points, e.g. movable channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
-
- 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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
- F16L3/20—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
- F16L3/205—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs
- F16L3/2056—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs the axis of at least one spring being oblique or perpendicular to the direction of the movement of the pipe
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewage (AREA)
Abstract
nullThe invention discloses the collector pipe structure that the convenience of collector pipe technical field is transported and buried underground，Including collector pipe，The two ends, left and right, top of described collector pipe are provided with upper fixed seat，The left wall top of the fixed seat of left end and the You Bi top of the fixed seat of right-hand member are provided with lifting plate，The outer wall of described lifting plate is vertically provided with hole for hoist，The present invention setting by upper fixed seat，The top enabling collector pipe is fixed，Ensure that collector pipe will not slide，By lifting the setting of plate，Facilitate the lifting of collector pipe，Ensure the installation effectiveness of collector pipe，By the setting of hole for hoist，Facilitate the fixing of suspension hook，Ensure safety when collector pipe moves，By the setting of lower fixed seat，The bottom enabling collector pipe is fixed，Ensure that collector pipe will not slide，By the setting of elastic component，Ensure that collector pipe will not be moved，Ensure safety during lifting.
Description
Technical field
The present invention relates to collector pipe technical field, be specially the collector pipe structure conveniently transported and bury underground.
Background technology
Existing collector pipe is usually ganoid body, and smooth body easily slides, in transportation, due to
The effect of external force can produce rolling, the most smooth outer surface to transportation also creates many inconvenience, smooth outside
Surface is not easily found the strong point and impetus, during machinery or a dead lift, and bad stress, such as Chinese patent Shen
Please number be 201420424099.3 1 kinds of fixing devices facilitating large-scale pipeline to transport, particular content be: one facilitates Large Tube
The fixing device of road transport, including carrying platform, curved splint and split bolt；The both upper ends thereof of described carrying platform is provided with many
Installation is prolonged limit, and described installation is prolonged the length direction distribution of edge carrying platform and is arranged, and the every pair of installation is prolonged on limit articulated a pair
Curved splint, two curved splint specular are arranged, and the bottom of this curved splint is to prolong, with installing, the articulated section that limit is hinged,
The central panel body arc of curved splint matches with the pipe shaft arc of pipeline, and the upper end of described curved splint is provided with sealed groove,
It is strained and fixed by split bolt between the sealed groove of two curved splints, designs ingenious, eliminate substantial amounts of manpower and materials, improve
Work efficiency, easy to use, it is worthy to be popularized, although this fixing device facilitating large-scale pipeline to transport eliminates substantial amounts of people
Power material resources, improve work efficiency, easy to use, but the most single at the top of carrying platform and the junction of curved splint
Thin, it is susceptible to fracture and causes a serious accident, it is impossible to ensure the safety of workman, there is no hanging apparatus simultaneously, be unfavorable for pipeline
Lifting, therefore, the collector pipe structure that design is conveniently transported and buried underground.
Summary of the invention
It is an object of the invention to provide the collector pipe structure conveniently transported and bury underground, to solve above-mentioned background technology carries
Although go out eliminates substantial amounts of manpower and materials, improve work efficiency, easy to use, but at the top of carrying platform and arc
The junction of clevis plate is the thinest, is susceptible to fracture and causes a serious accident, it is impossible to ensures the safety of workman, does not has simultaneously
Hanging apparatus, the problem being unfavorable for the lifting of pipeline.
For achieving the above object, the present invention provides following technical scheme: the collector pipe structure conveniently transported and bury underground, including
Collector pipe, the two ends, left and right, top of described collector pipe are provided with upper fixed seat, the left wall top of the fixed seat of left end and
The You Bi top of the fixed seat of right-hand member is provided with lifting plate, and the outer wall of described lifting plate is vertically provided with hole for hoist, institute
State the two ends, left and right, bottom of collector pipe to be provided with lower fixed seat, the inner chamber of fixed seat and the inner chamber of lower fixed seat and be all provided with
It is equipped with elastic component, the outer wall of fixed seat and the outer wall of lower fixed seat and is provided with connecting bolt, described connecting bolt
Top and bottom are provided with clamp nut, the bottom of fixed seat and the bottom of lower fixed seat and all offer groove, institute
The inner chamber stating groove is provided with cushion pad, and the top of fixed seat offers draw-in groove, about the bottom of described lower fixed seat
Two ends are provided with screw rod, and the bottom of described screw rod is provided with universal wheel, and the top of described collector pipe arranges trickle gully-hole, institute
The top stating trickle gully-hole is provided with fine and closely woven filtering meshes.
Preferably, described cushion pad is rubber blanket, and the top of described cushion pad is provided with anticorrosion layer, and described anticorrosion layer is ring
Oxygen erosion shield, the top of described anticorrosion layer is provided with wearing layer, and described wearing layer is polyurethane wear resistant coating.
Preferably, the structure of described groove is circular arc, and the radius of described groove is identical with the radius of collector pipe.
Preferably, the quantity of described lifting plate is four groups, and the structure lifting plate described in four groups is identical.
Preferably, fixed seat and lower fixed seat are " convex " shape structure.
Preferably, the width of described draw-in groove and the width of universal wheel are identical.
Preferably, the bottom of described lower fixed seat offers the hole matched with screw rod, and the inner chamber in hole is provided with interior spiral shell
Stricture of vagina.
Compared with prior art, the invention has the beneficial effects as follows: the present invention setting by upper fixed seat, make collector pipe
Top can be fixed, it is ensured that collector pipe will not slide, and by lifting the setting of plate, facilitates the lifting of collector pipe, it is ensured that
The installation effectiveness of collector pipe, by the setting of hole for hoist, facilitates the fixing of suspension hook, it is ensured that safety when collector pipe moves, logical
Cross the setting of lower fixed seat, enable the bottom of collector pipe to be fixed, it is ensured that collector pipe will not slide, by elastic component
Arrange, it is ensured that collector pipe will not be moved, it is ensured that safety during lifting, by the setting of connecting bolt, make upper fixed seat and
Lower fixed seat links together, it is ensured that the stationarity of collector pipe, by the setting of clamp nut, makes upper fixed seat and lower fixed seat
It is completely embedded, it is ensured that collector pipe will not slide, by the setting of groove, makes upper fixed seat and lower fixed seat with collector pipe more
The laminating added, it is ensured that the stability of collector pipe, by the setting of cushion pad, reduces upper fixed seat and lower fixed seat to collector pipe
Extruding, it is ensured that collector pipe will not deform, by the setting of anticorrosion layer, improves the corrosion resistance of cushion pad, passes through wearing layer
Setting, improve cushion pad wearability, cost-effective, by the setting of draw-in groove, enable universal wheel to be fixed, it is ensured that collection
The water pipe stability when transport, by the setting of screw rod, makes the collector pipe level height when burying underground to regulate, convenient collection
The docking of water pipe and burying, by the setting of universal wheel, makes the mobility of collector pipe increase, facilitates the carrying of collector pipe, pass through
The setting of trickle gully-hole, enables collector pipe to be collected water resource by trickle gully-hole, by fine and closely woven filtering meshes
Arrange, make the water in entrance collector pipe be filtered, prevent impurity from blocking trickle gully-hole, it is ensured that effective work of trickle gully-hole
Make.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Fig. 2 is upper fixed seat structural representation of the present invention；
Fig. 3 is lower fixed seat structural representation of the present invention；
Fig. 4 is A portion of the present invention enlarged drawing；
Fig. 5 is B portion of the present invention enlarged drawing.
In figure: 1 collector pipe, 2 upper fixed seats, 3 lifting plates, 4 holes for hoist, 5 lower fixed seats, 6 elastic components, 7 connecting bolts, 8
Clamp nut, 9 grooves, 10 cushion pads, 101 anticorrosion layers, 102 wearing layers, 11 draw-in grooves, 12 screw rods, 13 universal wheels, 14 trickle catchment
Hole, 15 fine and closely woven filtering meshes.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Referring to Fig. 1-5, the present invention provides a kind of technical scheme: the collector pipe structure conveniently transported and bury underground, including collection
Water pipe 1, the two ends, left and right, top of described collector pipe 1 are provided with upper fixed seat 2, the left wall top of the fixed seat of left end 2
The You Bi top of seat 2 fixed with right-hand member is provided with lifting plate 3, and the outer wall of described lifting plate 3 is vertically provided with lifting
Hole 4, the two ends, left and right, bottom of described collector pipe 1 are provided with lower fixed seat 5, the inner chamber of fixed seat 2 and lower fixed seat 5
Inner chamber be provided with elastic component 6, the outer wall of fixed seat 2 and the outer wall of lower fixed seat 5 and be provided with connecting bolt 7,
The top of described connecting bolt 7 and bottom are provided with clamp nut 8, the bottom of fixed seat 2 and the end of lower fixed seat 5
Portion all offers groove 9, and the inner chamber of described groove 9 is provided with cushion pad 10, and the top of fixed seat 2 offers draw-in groove
11, the two ends, left and right, bottom of described lower fixed seat 5 are provided with screw rod 12, and the bottom of described screw rod 12 is provided with universal wheel 13,
The top of described collector pipe 1 arranges trickle gully-hole 14, and the top of described trickle gully-hole 14 is provided with fine and closely woven filtering meshes 15.
Wherein, described cushion pad 10 is rubber blanket, and the top of described cushion pad 10 is provided with anticorrosion layer 101, described anti-corrosion
Layer 101 is epoxy anticorrosion erosion resisting coating, and the top of described anticorrosion layer 101 is provided with wearing layer 102, and described wearing layer 102 is poly-ammonia
Ester wear-resistant coating, improves corrosion resistance and the wearability of cushion pad 10, and cost-effective, the structure of described groove 9 is circular arc, institute
The radius stating groove 9 is identical with the radius of collector pipe 1, makes upper fixed seat 2 and lower fixed seat 5 more fit with collector pipe 1, protects
The stability of card collector pipe 1, the quantity of described lifting plate 3 is four groups, and the structure lifting plate 3 described in four groups is identical, conveniently catchments
The lifting of pipe 1, it is ensured that the installation effectiveness of collector pipe 1, fixed seat 2 and lower fixed seat 5 are " convex " shape structure, it is ensured that collection
The stability of water pipe 1, the width of described draw-in groove 11 is identical with the width of universal wheel 13, makes universal wheel 13 to be fixed, and protects
The card collector pipe 1 stability when transport, the bottom of described lower fixed seat 5 offers the hole matched with screw rod 12, and hole
Inner chamber is provided with female thread, makes the collector pipe 1 level height when burying underground to regulate, facilitates the docking of collector pipe 1 and bury,
Ensure that the installation of collector pipe 1 is accurate.
Operation principle: the present invention by arranging upper fixed seat 2 at the top of collector pipe 1, enable the top of collector pipe 1 by
Fixing, it is ensured that collector pipe 1 will not slide, by arranging lifting plate 3 at the sidewall of upper fixed seat 2, facilitate hanging of collector pipe 1
Dress, it is ensured that the installation effectiveness of collector pipe 1, by the vertically arranged hole for hoist of outer wall 4 at lifting plate 3, facilitates the fixing of suspension hook, protects
Safety when card collector pipe 1 moves, by arranging lower fixed seat 5 in the bottom of collector pipe 1, enables the bottom of collector pipe 1
Fixed, it is ensured that collector pipe 1 will not slide, by the setting of elastic component 6, it is ensured that collector pipe 1 will not be moved, it is ensured that
Safety during lifting, by arranging connecting bolt 7 at the outer wall of upper fixed seat 2 and lower fixed seat 5, makes upper fixed seat 2 and lower solid
Reservation 5 links together, it is ensured that the stationarity of collector pipe 1, by arranging clamp nut 8 at the top of connecting bolt 7 and bottom,
Upper fixed seat 2 and lower fixed seat 5 is made to be completely embedded, it is ensured that collector pipe 1 will not slide, by the bottom at upper fixed seat 2
Offer groove 9 with the top of lower fixed seat 5, make upper fixed seat 2 and lower fixed seat 5 more fit with collector pipe 1, it is ensured that to catchment
The stability of pipe 1, by arranging cushion pad 10 at the inner chamber of groove 9, reduces upper fixed seat 2 and lower fixed seat 5 to collector pipe 1
Extruding, it is ensured that collector pipe 1 will not deform, by arranging anticorrosion layer 101 at the top of cushion pad 10, improves cushion pad 10
Corrosion resistance, by arranging wearing layer 102 at the top of anticorrosion layer 101, improves the wearability of cushion pad 10, cost-effective, logical
Cross and draw-in groove 11 be set at the top of upper fixed seat 2, make universal wheel 13 to be fixed, it is ensured that collector pipe 1 transport time steady
Qualitative, by arranging screw rod 12 in the bottom of lower fixed seat 5, make the collector pipe 1 level height when burying underground to regulate, convenient
The docking of collector pipe 1 and burying, by arranging universal wheel 13 in the bottom of screw rod 12, makes the mobility of collector pipe 1 increase, convenient
The carrying of collector pipe 1, by arranging trickle gully-hole 14 at the top of collector pipe 1, makes collector pipe 1 can pass through trickle gully-hole
14 are collected water resource, by arranging fine and closely woven filtering meshes 15 at the top of trickle gully-hole 14, make in entrance collector pipe 1
Water is filtered, and prevents impurity from blocking trickle gully-hole 14, it is ensured that effective work of trickle gully-hole 14.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and these embodiments can be carried out multiple change without departing from the principles and spirit of the present invention, revise, replace
And modification, the scope of the present invention be defined by the appended.
Claims (7)
- The collector pipe structure the most conveniently transported and bury underground, including collector pipe (1), it is characterised in that: the top of described collector pipe (1) Two ends, left and right are provided with upper fixed seat (2), the left wall top of the fixed seat of left end (2) and the fixed seat of right-hand member (2) You Bi top is provided with lifting plate (3), and the outer wall of described lifting plate (3) is vertically provided with hole for hoist (4), described collection The two ends, left and right, bottom of water pipe (1) are provided with lower fixed seat (5), the inner chamber of fixed seat (2) and lower fixed seat (5) Inner chamber is provided with elastic component (6), and the outer wall of fixed seat (2) and the outer wall of lower fixed seat (5) are provided with connection spiral shell Bolt (7), the top of described connecting bolt (7) and bottom be provided with clamp nut (8), the bottom of fixed seat (2) and The bottom of lower fixed seat (5) all offers groove (9), and the inner chamber of described groove (9) is provided with cushion pad (10), fixed The top of seat (2) offers draw-in groove (11), and the two ends, left and right, bottom of described lower fixed seat (5) are provided with screw rod (12), described The bottom of screw rod (12) is provided with universal wheel (13), and the top of described collector pipe (1) arranges trickle gully-hole (14), described trickle The top of gully-hole (14) is provided with fine and closely woven filtering meshes (15).
- The collector pipe structure that convenience the most according to claim 1 is transported and buried underground, it is characterised in that: described cushion pad (10) For rubber blanket, the top of described cushion pad (10) is provided with anticorrosion layer (101), and described anticorrosion layer (101) is that epoxy anticorrosion is coated with Layer, the top of described anticorrosion layer (101) is provided with wearing layer (102), and described wearing layer (102) is polyurethane wear resistant coating.
- The collector pipe structure that convenience the most according to claim 1 is transported and buried underground, it is characterised in that: described groove (9) Structure is circular arc, and the radius of described groove (9) is identical with the radius of collector pipe (1).
- The collector pipe structure that convenience the most according to claim 1 is transported and buried underground, it is characterised in that: described lifting plate (3) Quantity be four groups, described in four groups lift plate (3) structure identical.
- The collector pipe structure that convenience the most according to claim 1 is transported and buried underground, it is characterised in that: fixed seat And lower fixed seat (5) is " convex " shape structure (2).
- The collector pipe structure that convenience the most according to claim 1 is transported and buried underground, it is characterised in that: described draw-in groove (11) Width is identical with the width of universal wheel (13).
- The collector pipe structure that convenience the most according to claim 1 is transported and buried underground, it is characterised in that: described lower fixed seat (5) bottom offers the hole matched with screw rod (12), and the inner chamber in hole is provided with female thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610755650.6A CN106224645B (en) | 2016-08-30 | 2016-08-30 | Convenience in transport and inbuilt collector pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610755650.6A CN106224645B (en) | 2016-08-30 | 2016-08-30 | Convenience in transport and inbuilt collector pipe structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106224645A true CN106224645A (en) | 2016-12-14 |
| CN106224645B CN106224645B (en) | 2018-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610755650.6A Active CN106224645B (en) | 2016-08-30 | 2016-08-30 | Convenience in transport and inbuilt collector pipe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106224645B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654747A (en) * | 2017-09-05 | 2018-02-02 | 煌盛集团重庆管业有限公司 | A kind of plastic composite pipe of high intensity crack resistence |
| CN108612934A (en) * | 2018-05-17 | 2018-10-02 | 付杰 | A kind of central gas supply pipeline for cities and towns natural gas |
| CN114671338A (en) * | 2022-05-27 | 2022-06-28 | 徐州市全球通精密钢管有限公司 | Pipe hoist for precise slender steel pipe |
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| DE3247102A1 (en) * | 1982-12-20 | 1984-06-20 | Franz Josef Ing.(grad.) 5451 Horhausen Becker | Transporting element for long goods |
| CN201651550U (en) * | 2010-04-20 | 2010-11-24 | 辽宁大金重工股份有限公司 | Welding cable bracket of pipe tower type wind power generating tower frame |
| DE102009042854A1 (en) * | 2009-09-24 | 2011-03-31 | Pfenning Elektroanlagen Gmbh | Straddle carrier for use in container terminals and for general transport tasks |
| WO2011076238A1 (en) * | 2009-12-23 | 2011-06-30 | Powerwind Gmbh | Adjustable transport feet |
| CN202625655U (en) * | 2012-05-15 | 2012-12-26 | 北京万桥兴业机械有限公司 | Tower tube transporter |
| CN204077740U (en) * | 2014-07-30 | 2015-01-07 | 江西天丰建设集团塑钢科技有限公司 | A kind of anchor fitting facilitating large-scale pipeline to transport |
-
2016
- 2016-08-30 CN CN201610755650.6A patent/CN106224645B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3247102A1 (en) * | 1982-12-20 | 1984-06-20 | Franz Josef Ing.(grad.) 5451 Horhausen Becker | Transporting element for long goods |
| DE102009042854A1 (en) * | 2009-09-24 | 2011-03-31 | Pfenning Elektroanlagen Gmbh | Straddle carrier for use in container terminals and for general transport tasks |
| WO2011076238A1 (en) * | 2009-12-23 | 2011-06-30 | Powerwind Gmbh | Adjustable transport feet |
| CN201651550U (en) * | 2010-04-20 | 2010-11-24 | 辽宁大金重工股份有限公司 | Welding cable bracket of pipe tower type wind power generating tower frame |
| CN202625655U (en) * | 2012-05-15 | 2012-12-26 | 北京万桥兴业机械有限公司 | Tower tube transporter |
| CN204077740U (en) * | 2014-07-30 | 2015-01-07 | 江西天丰建设集团塑钢科技有限公司 | A kind of anchor fitting facilitating large-scale pipeline to transport |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654747A (en) * | 2017-09-05 | 2018-02-02 | 煌盛集团重庆管业有限公司 | A kind of plastic composite pipe of high intensity crack resistence |
| CN107654747B (en) * | 2017-09-05 | 2023-08-25 | 河南金铨塑业有限公司 | High-strength cracking-resistant plastic composite pipe |
| CN108612934A (en) * | 2018-05-17 | 2018-10-02 | 付杰 | A kind of central gas supply pipeline for cities and towns natural gas |
| CN114671338A (en) * | 2022-05-27 | 2022-06-28 | 徐州市全球通精密钢管有限公司 | Pipe hoist for precise slender steel pipe |
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| Publication number | Publication date |
|---|---|
| CN106224645B (en) | 2018-11-06 |
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