CN203517089U - Connecting piece for steel pipe and plastic pipe - Google Patents
Connecting piece for steel pipe and plastic pipe Download PDFInfo
- Publication number
- CN203517089U CN203517089U CN201320631416.4U CN201320631416U CN203517089U CN 203517089 U CN203517089 U CN 203517089U CN 201320631416 U CN201320631416 U CN 201320631416U CN 203517089 U CN203517089 U CN 203517089U
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- CN
- China
- Prior art keywords
- plastic
- pipe
- steel pipe
- steel
- plastic pipe
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- 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.)
- Expired - Fee Related
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 60
- 239000004033 plastic Substances 0.000 title claims abstract description 60
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 49
- 239000010959 steel Substances 0.000 title claims abstract description 49
- 238000007789 sealing Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a connecting piece for a steel pipe and a plastic pipe. The connecting piece for the steel pipe and the plastic pipe is characterized by comprising the plastic pipe fitting and the steel pipe with threads, wherein the plastic pipe fitting is provided with a connector, one end of the steel pipe with threads is arranged inside the connector, reverse teeth are respectively formed at the outer side of the connecting end of the steel pipe with threads and the inner side of the connector of the plastic pipe fitting, the plastic pipe fitting and the steel pipe with threads are in reverse tooth triangle structure connection, and a taper sleeve is arranged at the connecting position. Through the combination of a certain number of reverse teeth and a plastic part, the effect of connection and sealing is achieved. Due to the fact that plastic materials will expand to different extents when being influenced by the external environment, tiny intervals exist between the plastic materials and metal. Pressure is applied to the plastic pipe fitting through the taper sleeve, interference fit is generated between the plastic pipe fitting and the taper sleeve, the plastic materials do not expand in a certain range, and therefore the purpose of air-tight connection and sealing is achieved.
Description
Technical field
The utility model relates to a kind of link, is specifically that a kind of steel is moulded tubular union.
Background technique
In plastic pipe and metallic conduit connection procedure, conventionally use steel to mould link excessive, yet often there is leak case in joint, affects the normal use of tubing.
The patent No. is that 201020260624.4 model utility discloses a kind of steel-plastic pipe connecting member, comprise steel bushing, one end of described steel bushing is provided with internal thread, the internal thread of described steel bushing is connected cooperation with the outside thread of steel pipe end flange, the other end of described steel bushing is provided with interior convex edge, and the interior convex edge of described steel bushing coordinates with the outer convex edge of moulding pipe end flange.
The patent No. is that 200620104281.6 model utility discloses a kind of steel-plastic composite pressure pipe connector, it is by attachment cap and connecting body mix proportion, described attachment cap is socketed on the bulge loop of steel-plastic composite pressure pipe, one end of the connecting body of hollow is docked and is harmonious with steel-plastic composite pressure pipe port, and the other end of the connecting body of hollow docks and is harmonious with another steel-plastic composite pressure pipe port; Described attachment cap selects respectively screw cap type or flange-type link to connect steel-plastic composite pressure pipe according to its nozzle diameter.
The patent No. is that the model utility of 200820167813.X discloses a kind of steel-plastic composite pipe connection structure and link, described link comprises that outer is cast steel, internal layer is the steel-plastic composite pipe fitting main body of plastics, the tubular expansion fastener of seal ring and T, the straight length of the tubular expansion fastener of described T inserts and is swollen solid in steel-plastic composite pipe, circle face covers on steel-plastic composite pipe interface end face, described steel-plastic composite pipe fitting main body consists of pipe joint and hole enlargement joining part, hole enlargement joining part inner peripheral surface is provided with the internal thread matching with the outside thread of steel-plastic composite pipe end, described seal washer is arranged between the bottom boss and the tubular expansion fastener circle of the T face of steel-plastic composite pipe end in steel-plastic composite pipe fitting main body hole enlargement joining part.
As can be seen here, the application that steel is moulded tubular union is more and more extensive, and many fields kind all needs to relate to, and still, very troublesome of situation about revealing often appears in joint, and the quality of sealing effect can affect performance and the life-span of pipe fitting.
Model utility content
The purpose of this utility model is to provide a kind of steel to mould tubular union at this, and a kind of transition connector element of registering one's residence before dress table applicable to combustion gas makes plastic materials do not expanded and reach the gastight object of connection sealing at particular range.
The utility model is to realize like this, construct a kind of steel and mould tubular union, a kind of transition connector element of registering one's residence before dress table applicable to combustion gas, it is characterized in that: comprise plastic pipe and band silk steel pipe, plastic pipe has connecting head, is with one end of silk steel pipe to be placed in connecting head, on the connecting end outside of described band silk steel pipe and plastic pipe connecting head inner side, is all formed with pawl, and form pawl three-legged structure between the two and connect, and joint arranges tapered sleeve.
Mainly by adding pressure injection, make plastic pipe one-body molded with band silk steel pipe, because the fed sheet of a media of this product is gas, the structure of molecule of gas is more active than fluid molecule.Pawl by some is combined with working of plastics, reaches connection sealing effect; Because plastic materials is being subject to the impact of external environment, can be subject to expansion in various degree, and and between metal, produces fine clearance.By tapered sleeve, from a side of plastic pipe, pressurize, produce between plastic pipe and tapered sleeve and produce interference fit, make plastic materials do not expanded and reach the gastight object of connection sealing at particular range.
Secondly, plastic pipe and band silk steel pipe pawl three-legged structure partly, the pawl on band silk steel pipe is consistent with plastic pipe direction.More effectively prevent that working of plastics and band silk steel pipe from producing a gap and coming off.
According to steel described in the utility model, mould tubular union, it is characterized in that: the other end of band silk steel pipe is threaded.Such benefit is: band silk steel pipe one end thread, main purpose is to be directly threaded connection, the welding procedure before reducing.
The utility model has the advantage of: steel described in the utility model is moulded tubular union, after the plastic pipe of product and band silk steel pipe integrated through injection molding, by tapered sleeve, pressurize better to reach sealing effect; Product structure is simple, be easy to install; Convenient transportation, saving cost, now large-scale production.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram
Fig. 2 is the utility model generalized section
Fig. 3 is the utility model tapered sleeve schematic diagram
Fig. 4 is the utility model plastic pipe schematic diagram
Fig. 5 is the utility model band silk steel pipe schematic diagram
Wherein: 1, plastic pipe, 1a, connecting head, 2, a band silk steel pipe, 2a, screw thread, 3, tapered sleeve.
Embodiment
Below in conjunction with accompanying drawing, 1-5 is elaborated to the utility model, technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1-2, a kind of steel is moulded tubular union, comprise plastic pipe 1 and band silk steel pipe 2, plastic pipe 1 has connecting head 1a, one end of band silk steel pipe 2 is placed in connecting head 1a, on the connecting end outside of described band silk steel pipe 2 and plastic pipe 1 connecting head 1a inner side, be all formed with pawl, and form the connection of pawl three-legged structure between the two, and joint arranges tapered sleeve 3.
Mainly by adding pressure injection, make plastic pipe one-body molded with band silk steel pipe, because the fed sheet of a media of this product is gas, the structure of molecule of gas is more active than fluid molecule.Pawl by some is combined with working of plastics, reaches connection sealing effect; Because plastic materials is being subject to the impact of external environment, can be subject to expansion in various degree, and and between metal, produces fine clearance.By tapered sleeve, from a side of plastic pipe, pressurize, produce between plastic pipe and tapered sleeve and produce interference fit, make plastic materials do not expanded and reach the gastight object of connection sealing at particular range.
Secondly, plastic pipe and band silk steel pipe pawl three-legged structure partly, the pawl on band silk steel pipe is consistent with plastic pipe direction.More effectively prevent that working of plastics and band silk steel pipe from producing a gap and coming off;
In the utility model, the threaded 2a of the other end of band silk steel pipe 2; Band silk steel pipe one end thread, main purpose is to be directly threaded connection, the welding procedure before reducing.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To these embodiments' multiple modification, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (2)
1. a steel is moulded tubular union, it is characterized in that: comprise plastic pipe (1) and band silk steel pipe (2), plastic pipe (1) has connecting head (1a), one end of band silk steel pipe (2) is placed in connecting head (1a), on the connecting end outside of described band silk steel pipe (2) and plastic pipe (1) connecting head (1a) inner side, be all formed with pawl, and form pawl three-legged structure between the two and connect, and joint arranges tapered sleeve (3).
2. steel is moulded tubular union according to claim 1, it is characterized in that: the other end threaded (2a) of band silk steel pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320631416.4U CN203517089U (en) | 2013-10-14 | 2013-10-14 | Connecting piece for steel pipe and plastic pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320631416.4U CN203517089U (en) | 2013-10-14 | 2013-10-14 | Connecting piece for steel pipe and plastic pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203517089U true CN203517089U (en) | 2014-04-02 |
Family
ID=50376020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320631416.4U Expired - Fee Related CN203517089U (en) | 2013-10-14 | 2013-10-14 | Connecting piece for steel pipe and plastic pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203517089U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235539A (en) * | 2014-09-02 | 2014-12-24 | 山东亨圆铜业有限公司 | Pawl type socket connection copper pipe |
| CN112393051A (en) * | 2020-11-16 | 2021-02-23 | 天长市云联管道有限公司 | Connecting and sealing mechanism for steel plastic pipe and plastic pipe |
-
2013
- 2013-10-14 CN CN201320631416.4U patent/CN203517089U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235539A (en) * | 2014-09-02 | 2014-12-24 | 山东亨圆铜业有限公司 | Pawl type socket connection copper pipe |
| CN112393051A (en) * | 2020-11-16 | 2021-02-23 | 天长市云联管道有限公司 | Connecting and sealing mechanism for steel plastic pipe and plastic pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Connecting piece for steel pipe and plastic pipe Effective date of registration: 20160722 Granted publication date: 20140402 Pledgee: Agricultural Bank of China Limited by Share Ltd. Chengdu Jinniu branch Pledgor: CHENGDU SANHUAN METAL PRODUCT Co.,Ltd. Registration number: 2016510000034 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220208 Granted publication date: 20140402 Pledgee: Agricultural Bank of China Limited by Share Ltd. Chengdu Jinniu branch Pledgor: CHENGDU SANHUAN METAL PRODUCT Co.,Ltd. Registration number: 2016510000034 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |