CN210179145U - Anti-shearing force locking piece for steel-plastic adapter - Google Patents
Anti-shearing force locking piece for steel-plastic adapter Download PDFInfo
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- CN210179145U CN210179145U CN201920893219.7U CN201920893219U CN210179145U CN 210179145 U CN210179145 U CN 210179145U CN 201920893219 U CN201920893219 U CN 201920893219U CN 210179145 U CN210179145 U CN 210179145U
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Abstract
The utility model discloses a steel is moulded conversion connector and is used anti-shear force retaining member, including hollow circular cylinder's retaining member main part, the lateral wall of retaining member main part inboard is provided with the horse's mouth tooth, for anticreep tooth, the retaining member main part wraps up steel and moulds the conversion interface and prolongs the plastic tubing that wraps up partly and extend out from steel and moulds the conversion interface, the length of retaining member main part is steel and moulds conversion interface length plus 20 ~ 100 millimeters extension length; a wedge-shaped notch is formed in the inner side of one end port, far away from the steel-plastic conversion interface, of the locking piece main body. The utility model discloses anti-shear capacity is strong, can effectual solution prior art exist because of the torn defect of pipeline kneck that the inhomogeneous settlement of soil caused.
Description
Technical Field
The utility model belongs to the technical field of tubular product, concretely relates to steel is moulded crossover sub and is used anti-shear force retaining member.
Background
At gas pipeline construction field, change the junction in order to make steel to mould and can more firm connect, often adopt the retaining member to lock the processing to the junction, present processing mode generally with the plastic pipe capping to the steel pipe on, set up or do not set up the horse muzzle tooth on the position of cup jointing of steel pipe, then sheathe the retaining member in the position of cup jointing, the inside horse muzzle tooth that is provided with of retaining member to prevent the interface slippage. However, in the above arrangement, when the soil layer at the steel-plastic conversion interface of the pipeline is unevenly settled, especially when one side of the plastic pipe is severely settled, the pipeline interface is easily misplaced and cracked to be damaged, so that the normal operation of an urban gas supply system is influenced, or because the pipeline is broken, gas is directly discharged from the pipeline, so that resources are wasted, and potential danger is also generated.
Therefore, the technical personnel in the field need to solve the problem that the steel-plastic conversion joint of the gas pipeline is cracked due to the uneven settlement of the soil layer when the gas pipeline encounters.
Disclosure of Invention
The utility model discloses the technical problem that will solve is: the utility model provides a steel is moulded anti-shear force retaining member for crossover sub has solved the defect that pipeline kneck is torn that causes because of the differential settlement of soil that prior art exists, and anti-shear capacity is strong.
In order to solve the technical problem, the technical scheme of the utility model is that:
an anti-shearing force locking member for a steel-plastic conversion joint comprises a hollow cylindrical locking member main body, wherein the side wall of the inner side of the locking member main body is provided with a jaw tooth (one-way tooth) which is an anti-disengaging tooth, the locking member main body wraps a steel-plastic conversion joint and extends and wraps a part of a plastic pipe extending out of the steel-plastic conversion joint, and the length of the locking member main body is the sum of the length of the steel-plastic conversion joint and the extension length of 20-100 mm; a wedge-shaped notch is formed in the inner side of one end port, far away from the steel-plastic conversion interface, of the locking piece main body.
Preferably, one end of the locking piece main body is provided with a thick-end locking piece, and the inner diameter of the thick-end locking piece is matched with the outer diameter of the plastic pipe at the steel-plastic conversion interface; the other end is provided with a thin end locking piece, and the inner diameter of the thin end locking piece is matched with the outer diameter of the plastic pipe outside the steel-plastic conversion interface; the thick end locking piece and the thin end locking piece are connected through an arc-shaped pipeline.
Furthermore, the length of the thick end locking piece is matched with the length of a plastic pipe at the steel-plastic conversion interface; the length of the thin end locking piece is 20-100 mm.
Preferably, the locking piece main body is a stainless steel locking piece main body.
Preferably, the inner wall, the outer wall and the inner and outer walls of the locking piece main body are all provided with an anticorrosive coating.
Further, the anticorrosive coating is a 3PE anticorrosive coating, an FBE anticorrosive coating or a polyurea anticorrosive coating.
Preferably, the wall thickness of the locking piece main body is 3-8 mm.
Since the technical scheme is used, the beneficial effects of the utility model are that:
the utility model discloses a retaining member is outside wrapping up steel and plastic conversion kneck, still wraps up a section of plastic tubing outside steel and plastic conversion kneck through extension length (if extension position has great gap then carry out the undergauge processing), can prevent effectively that the shearing force because of the near soil of this department sinks and brings oppresses the plastic tubing, makes the plastic tubing sink, thereby makes steel and plastic conversion kneck produce to tear and lead to defects such as gas leakage; in addition, the wedge-shaped notch arranged on the inner side of the port of the thin end locking piece can enable the sinking plastic pipe to generate a certain inclination, and the plastic pipe cannot be cut by the right-angle port, so that the plastic pipe is cracked, and the risk of air leakage is avoided.
In a word, the utility model discloses anti shear capacity is strong, can the tearing defect of pipeline kneck that causes because of soil differential settlement that effectual solution prior art exists.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
in the figure, 1-steel pipe; 2-plastic pipe; 3-a locking member body; 4-horse teeth; 5-wedge-shaped incision; 6-a butt locking piece; 7-thin end locking piece.
Detailed Description
The invention is further explained below with reference to the drawings and examples.
Example one：
As shown in fig. 1, the shearing force resistant locking member for the steel-plastic conversion joint comprises a hollow cylindrical locking member main body, wherein the side wall of the inner side of the locking member main body is provided with a jaw 4, a steel-plastic conversion interface is connected in a manner that a plastic pipe 2 is sleeved on a steel pipe 1, and the pipe diameter of the plastic pipe at the interface is the same as that of the whole plastic pipe; the locking piece main body 3 wraps the steel-plastic conversion interface and extends to wrap a part of the plastic pipe 2 extending out of the steel-plastic conversion interface, and the length of the locking piece main body 3 is the length of the steel-plastic conversion interface plus the extension length of 20-100 mm; a wedge-shaped notch 5 is arranged on the inner side of one end port of the locking piece main body 3 far away from the steel-plastic conversion interface.
Example two：
As shown in fig. 2, the shear force resisting locking member for the steel-plastic conversion joint comprises a hollow cylindrical locking member main body 3, wherein the side wall of the inner side of the locking member main body 3 is provided with a jaw 4, a steel-plastic conversion interface is connected in a way that a plastic pipe 2 is sleeved on a steel pipe 1, the plastic pipe at the interface is subjected to reaming treatment, and the pipe diameter of the plastic pipe is larger than that of the plastic pipe extending from the interface; one end of the locking piece main body 3 is provided with a thick end locking piece 6, and the inner diameter of the thick end locking piece 6 is matched with the outer diameter of the plastic pipe 2 at the steel-plastic conversion interface; the other end is provided with a thin end locking piece 7, and the inner diameter of the thin end locking piece 7 is matched with the outer diameter of the plastic pipe 2 outside the steel-plastic conversion interface; the thick end locking piece 6 and the thin end locking piece 7 are connected through an arc-shaped pipeline (not shown); a wedge-shaped notch 5 is arranged on the inner side of one end port of the locking piece main body 3 far away from the steel-plastic conversion interface.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Claims (7)
1. The utility model provides a steel is moulded crossover sub with anti shear force retaining member which characterized in that: the plastic pipe locking piece comprises a hollow cylindrical locking piece main body, wherein the side wall of the inner side of the locking piece main body is provided with a horse-mouth tooth, the locking piece main body wraps a steel-plastic conversion interface and extends and wraps a part of a plastic pipe extending out of the steel-plastic conversion interface, and the length of the locking piece main body is the sum of the length of the steel-plastic conversion interface and the extension length of 20-100 mm; a wedge-shaped notch is formed in the inner side of one end port, far away from the steel-plastic conversion interface, of the locking piece main body.
2. The shear force resistant retaining member for a steel-plastic crossover joint of claim 1, wherein: one end of the locking piece main body is provided with a thick-end locking piece, and the inner diameter of the thick-end locking piece is matched with the outer diameter of a plastic pipe at the steel-plastic conversion interface; the other end is provided with a thin end locking piece, and the inner diameter of the thin end locking piece is matched with the outer diameter of the plastic pipe outside the steel-plastic conversion interface; thick end retaining member and thin end retaining member are connected through circular-arc pipeline between.
3. The shear force resistant retaining member for a steel-plastic crossover joint of claim 2, wherein: the length of the thick end locking piece is matched with the length of a plastic pipe at the steel-plastic conversion interface; the length of tip retaining member is 20 ~ 100 millimeters.
4. The shear force resisting locking member for the steel-plastic conversion joint according to any one of claims 1 to 2, wherein: the retaining member main part is stainless steel retaining member main part.
5. The shear force resisting locking member for the steel-plastic conversion joint according to any one of claims 1 to 2, wherein: and anticorrosive coatings are arranged between the inner wall, the outer wall and the inner and outer walls of the locking piece main body.
6. The shear force resistant retaining member for a steel-plastic crossover joint of claim 5, wherein: the anticorrosive coating is a 3PE anticorrosive coating, an FBE anticorrosive coating or a polyurea anticorrosive coating.
7. The shear force resisting locking member for the steel-plastic conversion joint according to any one of claims 1 to 2, wherein: the wall thickness of retaining member main part is 3 ~ 8 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893219.7U CN210179145U (en) | 2019-06-10 | 2019-06-10 | Anti-shearing force locking piece for steel-plastic adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893219.7U CN210179145U (en) | 2019-06-10 | 2019-06-10 | Anti-shearing force locking piece for steel-plastic adapter |
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| Publication Number | Publication Date |
|---|---|
| CN210179145U true CN210179145U (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920893219.7U Active CN210179145U (en) | 2019-06-10 | 2019-06-10 | Anti-shearing force locking piece for steel-plastic adapter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790984A (en) * | 2021-09-10 | 2021-12-14 | 英业达科技有限公司 | Test fixture for testing buffer material |
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2019
- 2019-06-10 CN CN201920893219.7U patent/CN210179145U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790984A (en) * | 2021-09-10 | 2021-12-14 | 英业达科技有限公司 | Test fixture for testing buffer material |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200813 Address after: No. 5151, Yingqian street, high tech Zone, Weifang City, Shandong Province Patentee after: WEIFANG JOINTS TECHNOLOGY Co.,Ltd. Address before: 261205 No. 5151 Sakura Road, hi tech Zone, Shandong, Weifang Patentee before: SHANDONG ZHONGSHI PIPELINE TECHNOLOGY Co.,Ltd. |