CN109386240A - A kind of tubing nipple structure - Google Patents
A kind of tubing nipple structure Download PDFInfo
- Publication number
- CN109386240A CN109386240A CN201811396362.1A CN201811396362A CN109386240A CN 109386240 A CN109386240 A CN 109386240A CN 201811396362 A CN201811396362 A CN 201811396362A CN 109386240 A CN109386240 A CN 109386240A
- Authority
- CN
- China
- Prior art keywords
- reinforcing bar
- stratum reticulare
- supervisor
- cover
- colloid layer
- 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
- 210000002445 nipple Anatomy 0.000 title claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 42
- 239000000084 colloidal system Substances 0.000 claims abstract description 33
- 238000007373 indentation Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/02—Layer formed of wires, e.g. mesh
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
- B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D59/00—Plugs, sleeves, caps, or like rigid or semi-rigid elements for protecting parts of articles or for bundling articles, e.g. protectors for screw-threads, end caps for tubes or for bundling rod-shaped articles
- B65D59/06—Caps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/103—Metal fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2597/00—Tubular articles, e.g. hoses, pipes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The present invention relates to a kind of tubing nipple structures, include supervisor, cover and lid, the shape of the supervisor is cylindrical structure, the supervisor includes outer colloid layer, reinforcing bar stratum reticulare, spring and interior colloid layer, the reinforcing bar stratum reticulare is located inside the outer colloid layer, the connection of the two viscosity, the spring is located at the inner surface of the reinforcing bar stratum reticulare, the two is mutually close to, it is welded and fixed with the reinforcing bar stratum reticulare, the interior colloid layer is located at the inside of the reinforcing bar stratum reticulare, and it is connected respectively with the reinforcing bar stratum reticulare and the spring, wherein, the outer colloid layer, the developed surface of reinforcing bar stratum reticulare and interior colloid layer is rectangular parallelepiped structure, the cover is located at the both ends of the supervisor, the two is connected through a screw thread, the lid includes to be connect by screw thread with the cover, the lid includes bottom plate and side wall, the side wall is located at the side of the bottom plate, The side wall is equipped with multiple concave indentations, and compared with the existing technology, which stablizes, convenient transportation, securely and reliably.
Description
Technical field
The present invention relates to a kind of machinery field, in particular to a kind of tubing nipple structure.
Background technique
With the development of industry, petroleum industry is developed rapidly, and during oil exploitation, is often applied to stone
Tubing nipple component, petroleum pipeline pipe nipple component are common a kind of accessories in petroleum pipeline connection, and petroleum pipeline pipe nipple component is one
Section short oil pipe, it is effective for connecting long oil, in use, since oil pipe internal pressure is big, it is frequently encountered pipe nipple cracking,
Occur oil leakage phenomenon, cause security risk, influence oil exploitation, while during transporting petroleum pipeline pipe nipple, due to the external world
Contact, it is easy to cause petroleum pipeline pipe nipple both ends to occur damaged.
Therefore, a kind of tubing nipple structure how is provided, which stablizes, convenient transportation, securely and reliably.
Summary of the invention
The purpose of the invention is to provide a kind of tubing nipple structure, which stablizes, and convenient transportation safely may be used
It leans on.
In order to solve the above technical problems, embodiments of the present invention provide a kind of tubing nipple structure, include supervisor, position
Cover on the supervisor, the lid positioned at the cover side, wherein the shape of the supervisor is cylindrical structure, and
Lead to structure in, the supervisor includes outer colloid layer, reinforcing bar stratum reticulare, spring and interior colloid layer, and the reinforcing bar stratum reticulare is located at described
Inside outer colloid layer, the two viscosity connection, the spring is located at the inner surface of the reinforcing bar stratum reticulare, and the two is mutually close to, with institute
Reinforcing bar stratum reticulare is stated to be welded and fixed, the interior colloid layer is located at the inside of the reinforcing bar stratum reticulare, and respectively with the reinforcing bar stratum reticulare and
The spring is connected, wherein the developed surface of the outer colloid layer, reinforcing bar stratum reticulare and interior colloid layer is rectangular parallelepiped structure, the cover
Body is located at the both ends of the supervisor, and the two is connected through a screw thread, and the lid includes to be connect by screw thread with the cover, described
Lid includes bottom plate and side wall, and the side wall is located at the side of the bottom plate, and one end of the separate supervisor, on the side wall
Equipped with multiple concave indentations.
Embodiment of the present invention in terms of existing technologies, since the tubing nipple structure is by being responsible for, cover and lid
Composition, lid and cover are located at the both ends of the supervisor, during transport, play the role of protection supervisor, wherein by institute
Supervisor is stated to be located in the outer colloid layer by outer colloid layer, reinforcing bar stratum reticulare, spring and interior colloid layer composition, the reinforcing bar stratum reticulare
Portion, the connection of the two viscosity, the spring are located at the inner surface of the reinforcing bar stratum reticulare, and the two is mutually close to, with the reinforcing bar stratum reticulare
Be welded and fixed, the interior colloid layer is located at the inside of the reinforcing bar stratum reticulare, and respectively with the reinforcing bar stratum reticulare and the spring phase
Even, it is connected to each other close, enhancing supervisor's intensity is played the role of in stable structure, reinforcing bar stratum reticulare increase, simultaneously because spring can be with
The toughness for increasing supervisor, can reduce the pressure of supervisor, securely and reliably.
Further, the bottom plate and the side wall are integrally formed, or are mutually indepedent component.
Further, when the bottom plate and the side wall are mutually indepedent component, the two is welded to connect, due to the bottom
When plate and the side wall are mutually indepedent component, the two is welded to connect, and guarantees that the two is completely embedded, so that the two connection is more firm
Gu the two is avoided to generate displacement.
Further, according to actual needs, the quantity of the concave indentation is two.
Further, the cover is made of polyethylene material, effectively anti-since the cover is made of polyethylene material
Sealing vapour enters cover, and then vapour corrosion is avoided to be responsible for.
Further, the cover and the lid junction are additionally provided with sealing ring, due to the cover and the lid
Junction is additionally provided with sealing ring, increases the cover and the lid airtightness, prevents impurity from entering inside cover.
Detailed description of the invention
Following appended attached drawing is part of specification of the invention, depicts example embodiments of the present invention, institute
Attached drawing is used to illustrate the principle of the present invention together with the description of specification.
Fig. 1 is the structural schematic diagram of tubing nipple structure of the present invention；
Fig. 2 is the schematic cross-section that the present invention is responsible for；
Fig. 3 is the perspective view of cover of the present invention；
Fig. 4 is the perspective view of lid of the present invention.
Description of symbols
1 11 outer colloid layers of supervisor
12 reinforcing bar stratum reticulare, 13 spring
2 cover of colloid layer in 14
3 lid, 31 bottom plate
32 side wall, 321 concave indentation
4 sealing rings
Specific embodiment
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will with attached drawing and in detail
Narration clearly illustrates the spirit of disclosed content, and any skilled artisan is understanding the content of present invention
After embodiment, when the technology that can be taught by the content of present invention, it is changed and modifies, without departing from the essence of the content of present invention
Mind and range.
The illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but not as a limitation of the invention.
In addition, in the drawings and embodiments the use of element/component of same or like label is for representing same or like portion
Point.
About " first " used herein, " second " ... etc., not especially censure the meaning of order or cis-position,
It is non-to limit the present invention, only for distinguish with same technique term description element or operation.
About direction term used herein, such as: upper and lower, left and right, front or rear etc. are only the sides with reference to attached drawing
To.Therefore, the direction term used is intended to be illustrative and not intended to limit this creation.
It is open term, i.e., about "comprising" used herein, " comprising ", " having ", " containing " etc.
Mean including but not limited to.
About it is used herein " and/or ", including any of the things or all combination.
About term used herein " substantially ", " about " etc., to modify it is any can be with the quantity or mistake of microvariations
Difference, but this slight variations or error can't change its essence.In general, microvariations that such term is modified or error
Range in some embodiments can be 20%, in some embodiments can be 10%, can be in some embodiments 5% or its
His numerical value.It will be understood by those skilled in the art that the aforementioned numerical value referred to can be adjusted according to actual demand, it is not limited thereto.
It is certain to describe the word of the application by lower or discuss in the other places of this specification, to provide art technology
Personnel's guidance additional in relation to the description of the present application.
Shown in a kind of tubing nipple structure in the present invention, such as Fig. 1, Fig. 2, Fig. 3 and Fig. 4, which includes master
Pipe 1, the cover 2 on supervisor 1, the lid 3 positioned at 2 side of cover, wherein the shape for being responsible for 1 is cylindrical structure, and is
In lead to structure, supervisor 1 includes outer colloid layer 11, reinforcing bar stratum reticulare 12, spring 13 and interior colloid layer 14, and reinforcing bar stratum reticulare 12 is located at outer glue
Inside body layer 11, the two viscosity connection, spring 13 is located at the inner surface of reinforcing bar stratum reticulare 12, and the two is mutually close to, with reinforcing bar stratum reticulare
12 are welded and fixed, and interior colloid layer 14 is located at the inside of reinforcing bar stratum reticulare 12, and is connected respectively with reinforcing bar stratum reticulare 12 and spring 13,
In, outer colloid layer 11, the developed surface of reinforcing bar stratum reticulare 12 and interior colloid layer 14 is rectangular parallelepiped structure, and cover 2 is located at the two of supervisor 1
End, the two are connected through a screw thread, and lid 3 includes to be connect by screw thread with cover 2, and lid 3 includes bottom plate 31 and side wall 32, side wall
32 are located at the side of bottom plate 31, and one end far from supervisor 1, and side wall 32 is equipped with multiple concave indentations 321.
Through the above it is seen that the tubing nipple structure, since the tubing nipple structure is by supervisor 1,2 He of cover
Lid 3 forms, and lid 3 and cover 2 are positioned at the both ends of supervisor 1, during transport, plays the role of protection supervisor 1, wherein
Since supervisor 1 is made of outer colloid layer 11, reinforcing bar stratum reticulare 12, spring 13 and interior colloid layer 14, reinforcing bar stratum reticulare 12 is located at outer colloid
Inside layer 11, the two viscosity connection, spring 13 is located at the inner surface of reinforcing bar stratum reticulare 12, and the two is mutually close to, with reinforcing bar stratum reticulare 12
It is welded and fixed, interior colloid layer 14 is located at the inside of reinforcing bar stratum reticulare 12, and is connected respectively with reinforcing bar stratum reticulare 12 and spring 13, connects each other
Close, stable structure is connect, enhancing 1 intensity of supervisor is played the role of in the increase of reinforcing bar stratum reticulare 12, simultaneously because spring 3 can increase master
The toughness of pipe 1 can reduce the pressure of supervisor, securely and reliably.
In the present embodiment, when bottom plate 31 and side wall 32 are mutually indepedent component, the two is welded to connect, due to bottom plate 31
With side wall 32 be mutually indepedent component when, the two be welded to connect, guarantee both be completely embedded so that the two connection it is stronger,
Both avoid generating displacement, and in actual application, in order to enable both bottom plate 31 and side wall 32 connect it is even closer, by
Bottom plate 31 is designed to be integrally formed with side wall 32.
It may be noted that rotating side wall 32 for convenience, concave indentation 321 is equipped on side wall 32, according to reality
It needs, the quantity of concave indentation 321 is two.
Particularly, cover 2 is made of polyethylene material, since cover 2 is made of polyethylene material, effectively prevent steam into
Enter cover 2, and then vapour corrosion is avoided to be responsible for 1.
Specifically, cover 2 and 3 junction of lid are additionally provided with sealing ring 4, since cover 2 and 3 junction of lid are additionally provided with
Sealing ring 4 increases cover 2 and 3 airtightness of lid, prevents impurity from entering inside cover 2.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention,
And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (6)
1. a kind of tubing nipple structure, it is characterised in that: comprising supervisor, the cover on the supervisor is located at the cover
The lid of side, wherein the shape of the supervisor is cylindrical structure, and leads to structure in being, the supervisor includes outer colloid layer,
Reinforcing bar stratum reticulare, spring and interior colloid layer, the reinforcing bar stratum reticulare are located inside the outer colloid layer, the connection of the two viscosity, the bullet
Spring is located at the inner surface of the reinforcing bar stratum reticulare, and the two is mutually close to, is welded and fixed with the reinforcing bar stratum reticulare, the interior colloid layer position
It is connected in the inside of the reinforcing bar stratum reticulare, and respectively with the reinforcing bar stratum reticulare and the spring, wherein the outer colloid layer, steel
The developed surface of rib net layer and interior colloid layer is rectangular parallelepiped structure, and the cover is located at the both ends of the supervisor, and the two passes through screw thread
Connection, the lid include to be connect by screw thread with the cover, and the lid includes bottom plate and side wall, and the side wall is located at institute
The side of bottom plate, and one end far from the supervisor are stated, the side wall is equipped with N number of concave indentation, and wherein N is oneself greater than 1
So number.
2. tubing nipple structure according to claim 1, it is characterised in that: the bottom plate and the side wall are integrally formed,
It or is mutually indepedent component.
3. tubing nipple structure according to claim 2, it is characterised in that: when the bottom plate and the side wall are mutually solely
When vertical component, the two is welded to connect.
4. tubing nipple structure according to claim 1, it is characterised in that: the quantity of the concave indentation is two.
5. tubing nipple structure according to claim 1, it is characterised in that: the cover is made of polyethylene material.
6. tubing nipple structure according to claim 1, it is characterised in that: the cover is also set with the lid junction
There is sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811396362.1A CN109386240A (en) | 2018-11-22 | 2018-11-22 | A kind of tubing nipple structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811396362.1A CN109386240A (en) | 2018-11-22 | 2018-11-22 | A kind of tubing nipple structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109386240A true CN109386240A (en) | 2019-02-26 |
Family
ID=65429577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811396362.1A Pending CN109386240A (en) | 2018-11-22 | 2018-11-22 | A kind of tubing nipple structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109386240A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05296371A (en) * | 1992-04-22 | 1993-11-09 | Toyoda Gosei Co Ltd | Reinforcing hose |
| CN2392059Y (en) * | 1999-05-23 | 2000-08-16 | 王明 | High strength and high pressure hose |
| CN103672218A (en) * | 2013-12-23 | 2014-03-26 | 苏州市依星橡塑有限公司 | Novel rubber pipe |
| CN203921576U (en) * | 2014-05-21 | 2014-11-05 | 天津钢管集团股份有限公司 | Hangnail sealed type casing tube screw thread protectors |
| CN105649582A (en) * | 2014-11-10 | 2016-06-08 | 何光辉 | Sand-and-stone-prevention sieve pipe for mine |
| CN105756606A (en) * | 2016-03-09 | 2016-07-13 | 苏州华冲精密机械有限公司 | Blowout preventer shell |
| CN206539788U (en) * | 2017-02-15 | 2017-10-03 | 江西汇丰管业有限公司 | The special lower resistance HDPE winding reinforcing pipes of sewage discharge |
| CN207112137U (en) * | 2017-06-29 | 2018-03-16 | 东莞市松乔电子有限公司 | A kind of strong silicone tube of steadiness |
| CN207906625U (en) * | 2018-01-11 | 2018-09-25 | 诸暨市中承机械科技有限公司 | A kind of hydraulic oil pipe easy to use |
| CN108724848A (en) * | 2018-06-05 | 2018-11-02 | 盱眙新都科技发展有限公司 | A kind of Agricultural Water irrigation delivery pipe protection sleeve pipe |
| CN210798863U (en) * | 2018-11-22 | 2020-06-19 | 大庆宏远华星科技有限公司 | Oil pipe nipple structure |
-
2018
- 2018-11-22 CN CN201811396362.1A patent/CN109386240A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05296371A (en) * | 1992-04-22 | 1993-11-09 | Toyoda Gosei Co Ltd | Reinforcing hose |
| CN2392059Y (en) * | 1999-05-23 | 2000-08-16 | 王明 | High strength and high pressure hose |
| CN103672218A (en) * | 2013-12-23 | 2014-03-26 | 苏州市依星橡塑有限公司 | Novel rubber pipe |
| CN203921576U (en) * | 2014-05-21 | 2014-11-05 | 天津钢管集团股份有限公司 | Hangnail sealed type casing tube screw thread protectors |
| CN105649582A (en) * | 2014-11-10 | 2016-06-08 | 何光辉 | Sand-and-stone-prevention sieve pipe for mine |
| CN105756606A (en) * | 2016-03-09 | 2016-07-13 | 苏州华冲精密机械有限公司 | Blowout preventer shell |
| CN206539788U (en) * | 2017-02-15 | 2017-10-03 | 江西汇丰管业有限公司 | The special lower resistance HDPE winding reinforcing pipes of sewage discharge |
| CN207112137U (en) * | 2017-06-29 | 2018-03-16 | 东莞市松乔电子有限公司 | A kind of strong silicone tube of steadiness |
| CN207906625U (en) * | 2018-01-11 | 2018-09-25 | 诸暨市中承机械科技有限公司 | A kind of hydraulic oil pipe easy to use |
| CN108724848A (en) * | 2018-06-05 | 2018-11-02 | 盱眙新都科技发展有限公司 | A kind of Agricultural Water irrigation delivery pipe protection sleeve pipe |
| CN210798863U (en) * | 2018-11-22 | 2020-06-19 | 大庆宏远华星科技有限公司 | Oil pipe nipple structure |
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