CN204403655U - A kind of plastic pipe linkage structure - Google Patents
A kind of plastic pipe linkage structure Download PDFInfo
- Publication number
- CN204403655U CN204403655U CN201420670345.3U CN201420670345U CN204403655U CN 204403655 U CN204403655 U CN 204403655U CN 201420670345 U CN201420670345 U CN 201420670345U CN 204403655 U CN204403655 U CN 204403655U
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- Prior art keywords
- pipe
- pipe fitting
- groove
- seal ring
- fitting
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Abstract
The utility model discloses a kind of plastic pipe linkage structure, belong to technical field of pipeline connection, comprise pipe fitting and pipe, described pipe one end is connected with pipe fitting, be provided with exterior seal ring and inner seal ring between described pipe fitting and the junction surface of pipe, the surface of contact of pipe fitting with pipe is provided with groove structure and the protruding structure corresponding with groove structure clearly.The technical program by arranging groove structure at pipe fitting inner wall, and arranges protruding structure at tube outer wall, is coordinated when pipe fitting is connected with pipe by groove structure with protruding structure, and without the need to assistant tool, reaches the effect of convenient installation; By arranging inner seal ring and exterior seal ring respectively between pipe fitting and pipe junction surface, inside and outside dual seals, and reaches good sealing effect.
Description
Technical field
The utility model belongs to technical field of pipeline connection, relates to the pipeline exchanging structure in hot-water heating facility, especially relates to a kind of plastic pipe linkage structure.
Background technique
At present, plastics (PP-R) the pipe fitting kind in hot-water heating market has a lot, and general rigid pipeline on the corner needs to be transferred by two-way pipe fitting, then needs to be transferred by pipelines such as threeways at pipe branch place.Under normal circumstances, metal two-way, tee pipe fitting jointing diameter can be greater than the pipe nozzle diameter that need connect, and both are threaded connection, but plastic pipe and pipe due to processibility poor, should not adopt and be threaded.Along with people improve gradually to the quality requirement of industrial products, there is the equal tee possessing the plurality of advantages such as beautiful shape, surfacing is smooth, lightweight, texture is good; For improve further pipeline form structure, reduce the resistance that flows in the duct of liquid, the further structure having occurred two equal pipe sub-connections and equal tee and equal pipe sub-connection, this structure is connected by special hot melting equipment usually when connecting, by heating and melting while of two pipes and pipe fitting to a certain extent, insert one or two connection for bbreather pipe two ends simultaneously, can connection be completed.The advantage of this connection is, pipe fitting and pipe joint solid and reliable, can bear hydraulic pressure considerably beyond usage requirement and NBS requirement, and sealing effect being better, not easily there is water leakage phenomenon in joint.
But the deficiency of hot melting plastic pipe fitting and equal pipe sub-connection is, on the one hand, need to be assisted by special device, it is very inconvenient to operate, and particularly when high-altitude installation or narrow space are installed, installment work will become comparatively difficulty; On the other hand, also need by pipe joint when two equal pipes connect, make form structure relatively too fat to move; In addition, due to the process requirements of hot melt, simultaneously for ensureing that pipe fitting joint is firm, thicker pipe thickness need be ensured, make the materials of pipe fitting more, adding cost of production.
Model utility content
In order to solve the problem, the utility model provides a kind of plastic pipe linkage structure, reaches installation easy to connect, good seal, reduced outline, reduces the effect of tube material consumption.
The utility model is achieved by following technical solution.
A kind of plastic pipe linkage structure, comprise pipe fitting and pipe, described pipe one end is connected with pipe fitting, is provided with exterior seal ring and inner seal ring between described pipe fitting and the junction surface of pipe, and the surface of contact of pipe fitting with pipe is provided with groove structure and the protruding structure corresponding with groove structure clearly.
Described pipe fitting outer wall is provided with rib; Described rib radial direction extends, and is uniformly distributed along tube wall circumference.
Between the pipe outer step end face of described inner seal ring step end face and pipe in the pipe fitting of pipe fitting; Described exterior seal ring is between the pipe fitting joint end end face and the pipe coupling end end face of pipe of pipe fitting; Described pipe fitting joint end is greater than tube outer diameter, and described pipe coupling end external profile diameter is greater than tube outer diameter.
Described groove structure is dovetail groove A, along the distribution of pipe fitting inner wall circumference; Described groove structure is arc groove B, along the distribution of pipe fitting inner wall circumference; Described protruding structure is the swallow-tail form buckle A corresponding with groove A, along the distribution of tube outer wall circumference; Described protruding structure is the arc buckle B corresponding with groove B, along the distribution of tube outer wall circumference.
The beneficial effects of the utility model are:
A kind of plastic pipe linkage structure described in the utility model, by arranging groove structure at pipe fitting inner wall, and protruding structure being set at tube outer wall, being coordinated with protruding structure by groove structure when pipe fitting is connected with pipe, and without the need to assistant tool, reach the effect of convenient installation; By arranging inner seal ring and exterior seal ring respectively between pipe fitting and pipe junction surface, inside and outside dual seals, and avoids liquid to leak out in pipeline, also avoids the outer liquid of pipeline to infiltrate in pipeline from pipe joint, reaches good sealing effect; The hydraulic shock often born due to pipe fitting place and pressure maximum, therefore for meeting pipe fitting requirement of strength, being provided with bead structures at pipe fitting outer wall, while ensureing pipe fitting intensity, decreasing material consumption during formation of tubes; In addition, for ensureing the requirement of strength of pipe fitting joint end and pipe coupling end, carried out thickening design to two tip sides, a joint only connecting sewing after pipe fitting is connected with pipe, profile is simple, attractive in appearance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is non-dismountable formula pipe joint structure schematic diagram in the utility model;
Fig. 3 is non-dismountable formula pipe joint package assembly schematic diagram in the utility model;
Fig. 4 is detachable pipe joint structure schematic diagram in the utility model;
Fig. 5 is detachable pipe joint package assembly schematic diagram in the utility model
Fig. 6 is the structural representation of pipe fitting in the utility model;
Fig. 7 is the sectional view at pipe fitting A-A place in the utility model.
In figure: 1-pipe fitting, 101-seal groove, step in 102-pipe fitting, 103-pipe fitting joint end, 2-pipe, 201-pipe outer step, 202-pipe coupling end, 3-exterior seal ring, 4-inner seal ring, 5-groove structure, 501-groove A, 502-groove B, 6-protruding structure, 601-buckle A, 602-buckle B, 7-rib.
Embodiment
The technical solution of the utility model is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Fig. 1 ~ 7, a kind of plastic pipe linkage structure described in the utility model, comprise pipe fitting 1 and pipe 2, described pipe 1 and pipe 2 are equal pipe, pipe 2 one end is connected with pipe fitting 1, be provided with exterior seal ring 3 and inner seal ring 4 between described pipe fitting 1 and the junction surface of pipe 2, the surface of contact of pipe fitting 1 with pipe 2 is provided with groove structure 5 and the protruding structure 6 corresponding with groove structure 5 clearly.
Described pipe fitting 1 outer wall is provided with rib 7, and described rib 7 radial direction extends, and be uniformly distributed along tube wall circumference, pipe fitting 1 and rib 7 are integrated, one-body molded during manufacture.
Between pipe outer step 201 end face of described inner seal ring 4 step 102 end face and pipe 2 in the pipe fitting of pipe fitting 1, inner seal ring 4 is rubber parts, and thickness is slightly larger than the gap between both ends of the surface; Described exterior seal ring 3 is between pipe fitting joint end 103 end face and pipe coupling end 202 end face of pipe 2 of pipe fitting 1, and be arranged in seal groove 101 corresponding in both ends of the surface, exterior seal ring 3 is rubber parts, is O RunddichtringO.
Described groove structure 5 is dovetail groove A501, along the distribution of pipe fitting 1 inwall circumference; Described protruding structure 6 is the swallow-tail form buckle A601 corresponding with groove A501, along the distribution of pipe 2 outer wall circumference.When groove A501 and buckle A601 combine install time, the connection between pipe fitting 1 and pipe 2 is non-removable, connects the pipeline larger with fluid pressure be connected for the pipeline seldom dismantled.
Described groove structure 5 is arc groove B502, along the distribution of pipe fitting 1 inwall circumference; Described protruding structure 6 is the arc buckle B602 corresponding with groove B502, along the distribution of pipe 2 outer wall circumference.When groove B502 and buckle B602 combine install time, the connection between pipe fitting 1 and pipe 2 is dismountable, connects the pipeline less with fluid pressure be connected for needing the pipeline of normal dismounting.
For ensureing the tube wall strength of pipe fitting 1 joint, design pipe fitting joint end 103 is greater than pipe fitting 1 external diameter, is a plane of inclination seamlessly transitted; For making pipe fitting 1 and pipe 2 joint beautiful shape, pipe coupling end 202 external profile diameter being designed to the structure identical with pipe fitting joint end 103, being namely greater than pipe 2 external diameter, to ensure that pipe fitting 1 and pipe 2 joint seamlessly transit, only can see a connecting sewing.
Embodiment one
When pipe fitting 1 is connected with pipe 2, as Fig. 2, shown in Fig. 3, first inner seal ring 4 to be kept flat in pipe fitting on step 102 end face, exterior seal ring 3 is installed in the seal groove 101 of pipe fitting 1 simultaneously, by in step 102 in parallel for pipe outer step 201 inserting pipe elements, when buckle A601 plane of inclination contacts with pipe fitting joint end 103 inner edge, enforce pipe 2, utilize the good feature of plastic materials toughness, pipe fitting joint end 103 expands, pipe outer step 201 end shrinks, buckle A601 enters in groove A501, realize clamping, simultaneously pipe outer step 201 end face coordinates with step in pipe fitting 102 end face and is compressed by inner seal ring 4, the seal groove 101 of pipe fitting joint end 103 and pipe coupling end 202 coordinates and is compressed by exterior seal ring 3, seal respectively inside and outside realization.In the present embodiment, pipe fitting 1 is connected rear non-dismountable with pipe 2, once dismounting, pipe fitting 1 and pipe 2 joint will be made to damage, and cannot repair.
Embodiment two
When pipe fitting 1 is connected with pipe 2, as Fig. 4, shown in Fig. 5, first inner seal ring 4 to be kept flat in pipe fitting on step 102 end face, exterior seal ring 3 is installed in the seal groove 101 of pipe fitting 1 simultaneously, by in step 102 in parallel for pipe outer step 201 inserting pipe elements, when buckle B602 arc shaped surface contacts with pipe fitting joint end 103 inner edge, enforce pipe 2, utilize the good feature of plastic materials toughness, pipe fitting joint end 103 expands, pipe outer step 201 end shrinks, buckle B602 enters in groove B502, realize clamping, simultaneously pipe outer step 201 end face coordinates with step in pipe fitting 102 end face and is compressed by inner seal ring 4, the seal groove 101 of pipe fitting joint end 103 and pipe coupling end 202 coordinates and is compressed by exterior seal ring 3, seal respectively inside and outside realization.In the present embodiment, pipe fitting 1 is connected rear dismantled and assembled with pipe 2, dismounting can cause pipe fitting 1 and pipe 2 joint normal wear, the ability causing pipe coupling place to bear liquid in pipe pressure reduces by long-time repeated disassembled and assembled, sealing effect also will decline gradually simultaneously, may wear to and to a certain degree need to change this section of pipe fitting 1 and pipe 2.
Claims (10)
1. a plastic pipe linkage structure, comprise pipe fitting (1) and pipe (2), described pipe (2) one end is connected with pipe fitting (1), it is characterized in that: between the junction surface of described pipe fitting (1) and pipe (2), be provided with exterior seal ring (3) and inner seal ring (4), pipe fitting (1) with the surface of contact of pipe (2) is provided with clearly groove structure (5) and the protruding structure (6) corresponding with groove structure (5).
2. a kind of plastic pipe linkage structure according to claim 1, is characterized in that: described pipe fitting (1) outer wall is provided with rib (7).
3. a kind of plastic pipe linkage structure according to claim 1, is characterized in that: described inner seal ring (4) is positioned between pipe fitting step (102) end face of pipe fitting (1) and pipe outer step (201) end face of pipe (2).
4. a kind of plastic pipe linkage structure according to claim 1, is characterized in that: described exterior seal ring (3) is positioned between pipe fitting joint end (103) end face of pipe fitting (1) and pipe coupling end (202) end face of pipe (2).
5. a kind of plastic pipe linkage structure according to claim 2, is characterized in that: described rib (7) radial direction extends, and is uniformly distributed along tube wall circumference.
6. a kind of plastic pipe linkage structure according to claim 1, is characterized in that: described groove structure (5) is dovetail groove A (501), along the distribution of pipe fitting (1) inwall circumference.
7. a kind of plastic pipe linkage structure according to claim 1, is characterized in that: described groove structure (5) is arc groove B (502), along the distribution of pipe fitting (1) inwall circumference.
8. a kind of plastic pipe linkage structure according to claim 1, it is characterized in that: described protruding structure (6) is the swallow-tail form buckle A (601) corresponding with groove A (501), along the distribution of pipe (2) outer wall circumference.
9. a kind of plastic pipe linkage structure according to claim 1, it is characterized in that: described protruding structure (6) is the arc buckle B (602) corresponding with groove B (502), along the distribution of pipe (2) outer wall circumference.
10. a kind of plastic pipe linkage structure according to claim 3, it is characterized in that: described pipe fitting joint end (103) is greater than pipe fitting (1) external diameter, described pipe coupling end (202) external profile diameter is greater than pipe (2) external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420670345.3U CN204403655U (en) | 2014-11-11 | 2014-11-11 | A kind of plastic pipe linkage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420670345.3U CN204403655U (en) | 2014-11-11 | 2014-11-11 | A kind of plastic pipe linkage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204403655U true CN204403655U (en) | 2015-06-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420670345.3U Expired - Fee Related CN204403655U (en) | 2014-11-11 | 2014-11-11 | A kind of plastic pipe linkage structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204403655U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252038A (en) * | 2018-03-06 | 2018-07-06 | 青岛海尔洗衣机有限公司 | A kind of pipe connecting structure and washing machine |
| CN108644431A (en) * | 2018-07-03 | 2018-10-12 | 中山市荣星电器燃具有限公司 | Quick snap method with the check-valves for connecing fastener soon and hose of discharging fume |
| CN111102412A (en) * | 2020-01-16 | 2020-05-05 | 兖矿集团有限公司 | Quick connector |
-
2014
- 2014-11-11 CN CN201420670345.3U patent/CN204403655U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252038A (en) * | 2018-03-06 | 2018-07-06 | 青岛海尔洗衣机有限公司 | A kind of pipe connecting structure and washing machine |
| CN108644431A (en) * | 2018-07-03 | 2018-10-12 | 中山市荣星电器燃具有限公司 | Quick snap method with the check-valves for connecing fastener soon and hose of discharging fume |
| CN111102412A (en) * | 2020-01-16 | 2020-05-05 | 兖矿集团有限公司 | Quick 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: 20150617 Termination date: 20151111 |
|
| EXPY | Termination of patent right or utility model |