CN201255287Y - Plastic pipe joint - Google Patents
Plastic pipe joint Download PDFInfo
- Publication number
- CN201255287Y CN201255287Y CNU200820122707XU CN200820122707U CN201255287Y CN 201255287 Y CN201255287 Y CN 201255287Y CN U200820122707X U CNU200820122707X U CN U200820122707XU CN 200820122707 U CN200820122707 U CN 200820122707U CN 201255287 Y CN201255287 Y CN 201255287Y
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- CN
- China
- Prior art keywords
- pipe
- outer sleeve
- interior edge
- seal ring
- pipe fitting
- 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.)
- Expired - Fee Related
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Abstract
The embodiment of the utility model discloses a plastic pipe joint, which comprises an outer sleeve, an embedded pipe and a seal ring; wherein, the embedded pipe is a threaded plastic pipe and is embedded and fixed in one end of the outer sleeve; one end of the embedded pipe embedded in the outer sleeve is provided with at least one anti-rotation projection; the embedded pipe is provided with a retaining groove; and the seal ring is arranged between the embedded pipe and the outer sleeve. The pipe joint has a simple structure and can be conveniently fabricated, and compared with the metal-embedded pipe joint, the valuable metal is saved, so the cost is reduced. Moreover, since the anti-rotation projections and the retaining groove are arranged on the embedded pipe, the tightness between the embedded pipe and the outer sleeve of the pipe joint is perfectly guaranteed, and therefore the service life of the pipe joint is prolonged. The arrangement of the seal ring also perfectly resolves the problem that after the conventional pipe joint is used for a period of time, fluid can leak out between the embedded pipe and the outer sleeve.
Description
Technical field
The utility model relates to a kind of pipe fitting joint, relates in particular to a kind of pipe fitting joint that is used for the molding and forming of plastics class pipe fitting.
Background technique
Along with popularizing that plastic tube is used, cupric mold insert pipe fitting or other metal inserted piece pipe fitting are generally as the pipe joint of plastic tube, it uses also more and more, when existing cupric mold insert pipe fitting joint or other metal inserted piece pipe fitting joint carry out secondary (or more than) molding and forming, its product material cost height, manufacture cost height, though some can once-through, physical strength does not reach designing requirement, can't satisfy the needs of application yet.And, metalwork of inlaying in this metal inserted piece pipe fitting in the use and outer plastic pipe fitting are often because of sealing the bad escape of liquid that in use causes, also contact not firmly with outer tube, cause both to deviate from loosening relatively or metalwork, make the pipe fitting joint inefficacy because of interior metal inlaying part.
The model utility content
The utility model mode of execution provides a kind of plastic pipe joint, and the mode by molding and forming forms that outer sleeve is nested with interior edge pipe firmly, the pipe joint of good seal, and its low cost of manufacture, long service life.
The purpose of this utility model is achieved through the following technical solutions:
The utility model mode of execution provides a kind of pipe fitting joint, and this pipe fitting joint comprises:
Outer sleeve, interior edge pipe and seal ring, the edge pipe is screwed plastic pipe in described, interior edge pipe embeds and is fixed in outer sleeve one end, the interior edge Guan Yiduan that embeds outer sleeve is provided with at least one anti-rotation projection, interior edge pipe is provided with locking trough, between described interior edge pipe and the outer sleeve seal ring is set.
Described seal ring is arranged between the interior edge pipe outer wall and outer sleeve inner wall of tight contact by the annular groove on the interior edge pipe outer wall.
Described seal ring is soft seal ring.
Described locking trough is at least one.
In being arranged on, screw thread in described on the edge pipe on the inner tube wall of edge pipe, perhaps is arranged on the pipe outer wall of interior edge pipe projection.
Described outer sleeve outside is provided with and screws a plurality of projections that grip usefulness.
The other end of described outer sleeve is the straight length that is used to connect plastic tube.
An end tube wall of inlaying in described in the pipe embedding outer sleeve is provided with a plurality of anti-rotation projections, inlays on the tube wall of Guan Yiduan in a plurality of anti-rotation projections are evenly distributed on.
Described each anti-rotation projection is trapezoidal-structure.
The technological scheme that is provided by above-mentioned the utility model mode of execution as can be seen, the utility model mode of execution is fixed in the outer sleeve by interior edge pipe is embedded, and anti-rotation projection and locking trough are set at the interior edge Guan Yiduan that embeds, guaranteed that pipe joint is in screwing process, not can because of screw power make in edge pipe relatively rotate with outer sleeve or interior edge pipe withdraws from the pipe joint that causes and lost efficacy, guaranteed the quality of pipe joint.And between interior edge pipe and outer sleeve, seal ring is set, the fine situation of having avoided to occur between interior edge pipe and the outer sleeve escape of liquid.This pipe fitting joint is simple in structure, can adopt the mode of molding and forming to manufacture easily, and cost is low, and sturdy and durable.Compare the pipe joint of metal inlaying and saved a large amount of precious metals, have the characteristics of energy-saving and environmental protection.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the structural representation of the utility model embodiment's interior mold insert;
Fig. 3 is another embodiment's of the utility model a structural representation;
Fig. 4 is the schematic representation of another embodiment's of the utility model interior mold insert;
Fig. 5 is preparation process's flow chart of pipe joint among the utility model embodiment;
Fig. 6 is each articles injection-moulded schematic representation of cloudy formula pipe joint among the utility model embodiment;
Fig. 7 is each articles injection-moulded schematic representation of the utility model embodiment middle-jiao yang, function of the spleen and stomach formula pipe joint.
Embodiment
The utility model mode of execution provides a kind of plastic pipe joint, the all-plastic pipe joint that it is made for the injection moulding mode, its concrete structure comprises: outer sleeve, interior edge pipe and seal ring, edge pipe and outer sleeve are plastic tube in described, be threaded on the interior edge pipe, be fixed in outer sleeve one end with edge Guan Yiduan embedding in the injection moulding mode, the interior edge Guan Yiduan that embeds outer sleeve is provided with at least one anti-rotation projection, between interior edge pipe and outer sleeve seal ring is set.This pipe fitting joint is simple in structure, the saving metal, low, the preparation method of cost, and sturdy and durable, can not leak.
For ease of understanding, particular content of the present utility model is described further below in conjunction with accompanying drawing and specific embodiment.
Embodiment one
Present embodiment provides a kind of plastic pipe joint, is the pipe joint of all-plastic material, can be used for the connection of plastic pipe, and shown in Fig. 1～4, this plastic pipe joint specifically comprises:
On the outer wall of interior edge pipe 3, also be provided with the locking trough 5 of annular, a locking trough can be set, also a plurality of locking troughs can be set, in the injection moulding fixation procedure, the annular protrusion that forms on outer sleeve 1 inwall just in time is embedded in the described locking trough 5, and the interior edge pipe 3 that this structure can prevent the pipe joint after fixed-type and outer sleeve 1 are under the effect of longitudinal pulling force, and both relatively move, pipe fitting joint is damaged, played of the effect of interior edge pipe 3 from outer sleeve 1 interior retaining.
In described, also be provided with the seal ring 2 of anti-leak between edge pipe 3 and the outer sleeve 1, seal ring 2 can be the soft seal ring that adopts the flexible material preparation, as rubber ring, flexible glue circle etc., sealing circle 2 is managed the interior edge that annular groove 31 on 3 outer walls is arranged on tight contact by interior edge and is managed between 3 outer walls and outer sleeve 1 inwall, this structure not only makes seal ring 2 play good seal action, can be because of in the injection molding process yet, because of interior edge pipe 3 contacts tension with outer sleeve 1, seal ring 2 is squeezed bad, cause the pipe fitting joint seal failure after the moulding.
In the reality, above-mentioned interior edge pipe 3 can be divided into the pipe fitting joint of two kinds of forms of yin, yang, the form of similar bolts and nuts, and what screw thread 4 was set on the inner tube wall of interior edge pipe 3 is cloudy formula pipe fitting joint, sees Fig. 2; Manage the positive formula pipe fitting joint that is that screw thread 4 is set on the pipe outer wall of 3 projections at interior edge, see Fig. 4.
In above-mentioned pipe fitting joint, in outer sleeve 1 outside standing have screw a plurality of projections that grip usefulness, grip easily when use screws pipe joint to make things convenient for the user.
The other end that above-mentioned outer sleeve 1 is corresponding with embedding interior edge Guan Yiduan is a straight length, and this straight length can be used for connecting plastic tube, is connected with plastic tube as modes such as available thermoplastics.
When above-mentioned pipe fitting joint is carried out injection moulding and prepares, can adopt following method, as shown in Figure 5, be specially:
The material of once-through (moulding in advance) is processed into the specification of the interior edge pipe that design drawing provides with injection moulding or other processing method, use pre-set localization method, after edge pipe A is provided with seal ring C in one-time formed, place the appropriate location of quadric injection mould shaping die, make it reach the position effect of quadric injection mould moulding, carry out the quadric injection mould moulding, the product after the quadric injection mould moulding is tested, comprising: detect outward appearance, seepage and assembling test etc.Wherein, the material of (the interior edge pipe of moulding in advance) molding and forming should be selected thermosets for the first time, its heat is melted the heat that temperature is higher than the outer sleeve material of quadric injection mould moulding and is melted temperature more than at least 10 ℃, can select the heat of edge tube material in the molding and forming for the first time to melt temperature in the reality is higher than quadric injection mould moulding outer sleeve material heat and melts 10～70 ℃ of temperature, the very little material of distortion when preferably being chosen in the secondary heating moulding is in order to avoid the machining accuracy of the pipe joint product that influence finally makes.
Shown in Fig. 6,7, interior edge pipe A shown in the figure is a single injection-molded, outer sleeve B is the quadric injection mould moulding, edge was managed on the A in seal ring C was arranged on behind interior edge pipe A single injection-molded, the interior edge pipe A that is provided with seal ring C is positioned on the quadric injection mould shaping die, through the quadric injection mould moulding, form outer sleeve B in interior edge pipe A outside, seal ring C then is arranged between the interior edge pipe A and outer sleeve B of all-plastic pipe joint of last formation.
In sum, the utility model embodiment provides passes through the pipe fitting joint that the injection moulding mode forms the pipe fitting joint of all-plastic, the pipe joint of metal inlaying has been saved precious metal in not only comparing, reduced cost, and on interior edge pipe, anti-rotation projection and locking trough are set, the interior edge pipe of pipe joint and the tightness between the outer sleeve have well been guaranteed, increased the life-span of pipe joint, by the seal ring that is provided with, also well solved conventional pipe joint use after a period of time in the problem of escape of liquid between edge pipe and the outer sleeve.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (9)
1, a kind of plastic pipe joint is characterized in that, this pipe fitting joint comprises:
Outer sleeve (1), interior edge pipe (3) and seal ring (2), edge pipe (3) is for being threaded the plastic pipe of (4) in described, interior edge pipe (3) embeds and is fixed in outer sleeve (1) one end, interior edge pipe (3) one ends that embed outer sleeve (1) are provided with at least one anti-rotation projection (32), interior edge pipe (3) is provided with locking trough (5), and described interior edge is managed between (3) and the outer sleeve (1) seal ring (2) is set.
2, pipe fitting joint according to claim 1 is characterized in that, described seal ring (2) is arranged between interior edge pipe (3) outer wall and outer sleeve (1) inwall of tight contact by the annular groove (31) on interior edge pipe (3) outer wall.
3, pipe fitting joint according to claim 1 and 2 is characterized in that, described seal ring (2) is soft seal ring.
4, pipe fitting joint according to claim 1 is characterized in that, described locking trough is at least one.
According to claim 1 or 2 or 4 described pipe fitting joints, it is characterized in that 5, the screw thread (4) on the described interior edge pipe (3) is arranged on interior edge and manages on the inner tube wall of (3), edge is managed on the pipe outer wall of (3) projection in perhaps being arranged on.
6, pipe fitting joint according to claim 1 is characterized in that, described outer sleeve (1) outside is provided with and screws a plurality of projections that grip usefulness.
7, pipe fitting joint according to claim 1 is characterized in that, the other end of described outer sleeve (1) is the straight length that is used to connect plastic tube.
8, pipe fitting joint according to claim 1 is characterized in that, the end tube wall that described interior edge pipe (3) embeds in the outer sleeves (1) is provided with a plurality of anti-rotation projections, and a plurality of anti-rotation projections are evenly distributed on the tube wall of interior edge Guan Yiduan.
According to claim 1 or 8 described pipe fitting joints, it is characterized in that 9, described each anti-rotation projection is trapezoidal-structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820122707XU CN201255287Y (en) | 2008-09-22 | 2008-09-22 | Plastic pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820122707XU CN201255287Y (en) | 2008-09-22 | 2008-09-22 | Plastic pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201255287Y true CN201255287Y (en) | 2009-06-10 |
Family
ID=40738605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820122707XU Expired - Fee Related CN201255287Y (en) | 2008-09-22 | 2008-09-22 | Plastic pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201255287Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335186A (en) * | 2013-06-28 | 2013-10-02 | 无锡麻德克斯精机有限公司 | Three-way connector |
| CN103867819A (en) * | 2012-12-12 | 2014-06-18 | 上海龙胜实业有限公司 | Nonmetallic inserting part for water supply and drainage pipe fitting |
| CN103867821A (en) * | 2012-12-12 | 2014-06-18 | 上海龙胜实业有限公司 | Sealing structure for water supply and drainage pipe fitting |
-
2008
- 2008-09-22 CN CNU200820122707XU patent/CN201255287Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867819A (en) * | 2012-12-12 | 2014-06-18 | 上海龙胜实业有限公司 | Nonmetallic inserting part for water supply and drainage pipe fitting |
| CN103867821A (en) * | 2012-12-12 | 2014-06-18 | 上海龙胜实业有限公司 | Sealing structure for water supply and drainage pipe fitting |
| CN103335186A (en) * | 2013-06-28 | 2013-10-02 | 无锡麻德克斯精机有限公司 | Three-way connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20150922 |
|
| EXPY | Termination of patent right or utility model |