CN206487956U - A kind of sealing structure of plastic composite pipe metal connecting pipe fitting - Google Patents

A kind of sealing structure of plastic composite pipe metal connecting pipe fitting Download PDF

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Publication number
CN206487956U
CN206487956U CN201720056780.0U CN201720056780U CN206487956U CN 206487956 U CN206487956 U CN 206487956U CN 201720056780 U CN201720056780 U CN 201720056780U CN 206487956 U CN206487956 U CN 206487956U
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China
Prior art keywords
metal
tube
tail
metal tube
tube tail
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Active
Application number
CN201720056780.0U
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Chinese (zh)
Inventor
侯学辉
陈平
张沙沙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Weixing New Building Materials Co Ltd
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Zhejiang Weixing New Building Materials Co Ltd
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Priority to CN201720056780.0U priority Critical patent/CN206487956U/en
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Abstract

The utility model discloses a kind of sealing structure of plastic composite pipe metal connecting pipe fitting, including the first multiple tube and the second multiple tube, the first multiple tube fit inside sets the first metal tube tail, the first metal sleeve is equipped with the outside of first multiple tube, the second multiple tube fit inside sets the second metal tube tail, the second metal sleeve is equipped with the outside of second multiple tube, the first metal tube tail is equipped with the second metal tube tail, the locking for being used for being connected with each other between the first metal tube tail and the second metal tube tail and cap are provided between the first metal tube tail and the second metal tube tail.The beneficial effects of the utility model are that the first metal tube tail, the second metal tube tail, the first metal sleeve and the second metal sleeve use T-shaped toothing, can effectively strengthen the stability for withholding pipe fitting and plastic composite pipe.

Description

A kind of sealing structure of plastic composite pipe metal connecting pipe fitting
Technical field
The utility model is related to high pressure plastic composite tube interconnection technique field, and in particular to a kind of plastic composite pipe metal The sealing structure of connecting pipe.
Background technology
With plastic composite pipe, this is developed rapidly for several years, and the popularization that develops and produce of plastic composite pipe obtains great Achievement, application field is constantly expanding.Plastic composition pipeline has corrosion resistance, anti-aging, light weight, resistance to water-flow because of it The features such as small, convenient construction, low engineering cost, in occupation of important position in pipeline engineering, form a kind of irresistible Development trend.In industrial circle because operating pressure is higher, common plastic electrofusion pipe fitting has not reached design requirement, just Urgent need wants a kind of pipe fitting that high-pressure composite pipe can be connected, and the mode that can only be withheld at present with metal could solve high pressure and answer Close pipe connectivity problem, but solve being tightly connected between sealing and metal and metal between metal and plastics be only it is most important , how to ensure that metal withholds pipe fitting sealing reliability is to withhold one of core of pipe fitting.
Utility model content
For problems of the prior art, the utility model provides a kind of rational in infrastructure, modeling of good sealing effect Expect the sealing structure of multiple tube metal connecting pipe fitting.
The technical solution of the utility model is as follows:
A kind of sealing structure of plastic composite pipe metal connecting pipe fitting, including the first multiple tube and the second multiple tube, its It is characterised by, the first multiple tube fit inside, which is set, is equipped with the on the outside of the first metal tube tail, first multiple tube One metal sleeve, the second multiple tube fit inside sets and is equipped with the outside of the second metal tube tail, second multiple tube Second metal sleeve, the first metal tube tail is equipped with the second metal tube tail, the first metal tube tail and the second gold medal The locking for being used for being connected with each other between the first metal tube tail and the second metal tube tail and cap are provided between category pipe tail.
A kind of sealing structure of described plastic composite pipe metal connecting pipe fitting, it is characterised in that first metal The right-hand member of pipe tail is provided with first conical surface, and the left end of the second metal tube tail is provided with second conical surface, the taper of first conical surface More than the taper of second conical surface.
A kind of sealing structure of described plastic composite pipe metal connecting pipe fitting, it is characterised in that first conical surface On offer groove, sealing ring is provided with the groove.
A kind of sealing structure of described plastic composite pipe metal connecting pipe fitting, it is characterised in that first metal The outer wall of pipe tail, the inwall of the first metal sleeve, the inwall of the outer wall of the second metal tube tail and the second metal sleeve are equipped with T-shaped Toothing.
The beneficial effects of the utility model are, the first metal tube tail, the second metal tube tail, the first metal sleeve and second Metal sleeve uses T-shaped toothing, can effectively strengthen the stability for withholding pipe fitting and plastic composite pipe;First metal tube tail It is this double with setting sealing ring using the cooperation of first conical surface and second conical surface at the second metal tube tail cooperation and in first conical surface The mode of resealing, improves sealed effect;First metal tube tail and the second metal are caused using the locking and cap of knocking type Connect and more facilitate between pipe tail, no matter and caliber size only needs to hit with a hammer fastening just, saving large-caliber pipe fittings needs Want the trouble of fixture customized.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic enlarged-scale view of the utility model junction;
Fig. 3 is the utility model locking and cap schematic diagram;
In figure:1- the first metal tube tails, the metal sleeves of 2- first, the multiple tubes of 3- first, 4- lockings and cap, the metals of 5- second Sleeve, the multiple tubes of 6- second, 7- the second metal tube tails, 8- screw threads, the conical surfaces of 9- first, 10- sealing rings, 11- grooves, 12- second The conical surface.
Embodiment
The utility model is further described below in conjunction with Figure of description.
As Figure 1-3, a kind of sealing structure of plastic composite pipe metal connecting pipe fitting, including the first metal tube tail 1, First metal sleeve 2, the first multiple tube 3, locking and cap 4, the second metal sleeve 5, the second multiple tube 6, the second metal tube tail 7, Screw thread 8, first conical surface 9, sealing ring 10, the conical surface 12 of groove 11 and second.First metal tube tail 1 is coordinated by T-shaped toothing to be set Put in the inner side of the first multiple tube 3, the first metal sleeve 2 is arranged on the outside of the first multiple tube 3, second by T-shaped toothing Metal tube tail 7 is equipped with the inner side of the second multiple tube 6 by T-shaped toothing, and the second metal sleeve 5 passes through T-shaped toothing The outside of the second multiple tube 6 is arranged on, first conical surface 9 is arranged on the right end position of the first metal tube tail 1, and second conical surface 12 is set The left position in the second metal tube tail 7 is put, groove 11 is arranged on first conical surface 9, and sealing ring 10 is arranged in groove 11, used In the sealing of the first metal tube tail 1 and the second metal tube tail 7.The taper of first conical surface 9 is more than the taper of second conical surface 12, first The conical surface 9 sticks into second conical surface 12 so that the first metal tube tail 1 is fitted close with the second metal tube tail 7, realizes first of sealing;It is close The cooperation of the conical surface 12 of seal 10 and second realizes that second is sealed, and such dual-seal causes the first metal tube tail 1 and the second gold medal Sealing effectiveness is more preferable between belonging to pipe tail 7.
Installation process:First with crimping equipment by the first metal tube tail 1 and the first metal sleeve 2 respectively with the first plastics Multiple tube 3 is fixed, and the second metal tube tail 7 and the second metal sleeve 5 are fixed with the second plastic composite pipe 6 respectively, then with striking Hit type locking and cap 4 link together the right-hand member of the first metal tube tail 1 with the left end of the second metal tube tail 7, hit with a hammer locking, First conical surface 9 is fitted close with second conical surface 12 simultaneously, and sealing ring 10 is fitted close with second conical surface 12, forms two seals.

Claims (4)

1. a kind of sealing structure of plastic composite pipe metal connecting pipe fitting, including the first multiple tube(3)And second multiple tube (6), it is characterised in that first multiple tube(3)Fit inside sets the first metal tube tail(1), first multiple tube(3) Outside is equipped with the first metal sleeve(2), second multiple tube(6)Fit inside sets the second metal tube tail(7), it is described Second multiple tube(6)Outside is equipped with the second metal sleeve(5), the first metal tube tail(1)With the second metal tube tail(7) It is equipped with, the first metal tube tail(1)With the second metal tube tail(7)Between be provided be used for the first metal tube tail(1)With Two metal tube tails(7)Between the locking that is connected with each other and cap(4).
2. a kind of sealing structure of plastic composite pipe metal connecting pipe fitting according to claim 1, it is characterised in that institute State the first metal tube tail(1)Right-hand member be provided with first conical surface(9), the second metal tube tail(7)Left end be provided with second conical surface (12), first conical surface(9)Taper be more than second conical surface(12)Taper.
3. a kind of sealing structure of plastic composite pipe metal connecting pipe fitting according to claim 2, it is characterised in that institute State first conical surface(9)On offer groove(11), the groove(11)It is interior to be provided with sealing ring(10).
4. a kind of sealing structure of plastic composite pipe metal connecting pipe fitting according to claim 1, it is characterised in that institute State the first metal tube tail(1)Outer wall, the first metal sleeve(2)Inwall, the second metal tube tail(7)Outer wall and the second metal Sleeve(5)Inwall be equipped with T-shaped toothing.
CN201720056780.0U 2017-01-18 2017-01-18 A kind of sealing structure of plastic composite pipe metal connecting pipe fitting Active CN206487956U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720056780.0U CN206487956U (en) 2017-01-18 2017-01-18 A kind of sealing structure of plastic composite pipe metal connecting pipe fitting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720056780.0U CN206487956U (en) 2017-01-18 2017-01-18 A kind of sealing structure of plastic composite pipe metal connecting pipe fitting

Publications (1)

Publication Number Publication Date
CN206487956U true CN206487956U (en) 2017-09-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720056780.0U Active CN206487956U (en) 2017-01-18 2017-01-18 A kind of sealing structure of plastic composite pipe metal connecting pipe fitting

Country Status (1)

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CN (1) CN206487956U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108413146A (en) * 2018-03-02 2018-08-17 广东思豪流体技术有限公司 A kind of pipe fitting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108413146A (en) * 2018-03-02 2018-08-17 广东思豪流体技术有限公司 A kind of pipe fitting

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