CN106439354B - A kind of pipe fitting of good airproof performance - Google Patents

A kind of pipe fitting of good airproof performance Download PDF

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Publication number
CN106439354B
CN106439354B CN201611181617.3A CN201611181617A CN106439354B CN 106439354 B CN106439354 B CN 106439354B CN 201611181617 A CN201611181617 A CN 201611181617A CN 106439354 B CN106439354 B CN 106439354B
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China
Prior art keywords
diameter
connector sleeve
bushing
circular
conical
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CN201611181617.3A
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Chinese (zh)
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CN106439354A (en
Inventor
张宣沛
吕鲸鱼
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 Xinchang Huajia Guocai Plastic Co Ltd
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Zhejiang Xinchang Huajia Guocai Plastic Co Ltd
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Application filed by Zhejiang Xinchang Huajia Guocai Plastic Co Ltd filed Critical Zhejiang Xinchang Huajia Guocai Plastic Co Ltd
Priority to CN201611181617.3A priority Critical patent/CN106439354B/en
Publication of CN106439354A publication Critical patent/CN106439354A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/04Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with a swivel nut or collar engaging the pipe

Abstract

The invention discloses a kind of pipe fittings of good airproof performance, including tube body and two sealing fixed mechanisms, the both ends of the tube body are equipped with sealing fixed mechanism, the sealing fixed mechanism includes connector sleeve, bushing, circular slot, circular body, several elastic arms, several fixed teeth, several notches, fasten upper shield and circular cone shape sealing ring, the both ends of the tube body are equipped with connector sleeve, the inner wall of the connecting pin of the connector sleeve and tube body is formed with conical portion, circular cone shape sealing ring is equipped in the conical portion, the rear portion of the inner wall of the connector sleeve is equipped with circular slot, the circular body matched is equipped in the annular shape slot, the inner wall of the annular shape body is evenly distributed with elastic arm, the rear end of the elastic arm is equipped with fixed tooth, the bushing on the rear end of circular cone shape sealing ring is contradicted equipped with front end in the connector sleeve, the lining Be distributed on the front end of set with the one-to-one notch of elastic arm, compared with prior art, can good airproof performance, and long service life is easy to connect.

Description

A kind of pipe fitting of good airproof performance
[technical field]
The present invention relates to the technical field of pipe fitting, especially a kind of technical field of the pipe fitting of good airproof performance.
[background technique]
It usually requires to be attached by conduit coupling between pipeline, for avoiding having showing for leakage between pipeline As needing to wind sealant tape in junction when, the installation of existing conduit coupling mostly, carry out the close of riser tubing connector Effect is sealed, however will receive corrosion after sealing joint strip long-time use, directly affects the sealing effect of conduit coupling.
[summary of the invention]
The object of the invention is to solve the problems of the prior art, a kind of pipe fitting of good airproof performance, Neng Goumi are proposed Envelope property is good, and long service life, easy to connect.
To achieve the above object, the invention proposes a kind of pipe fittings of good airproof performance, including tube body and two sealings are admittedly Determine mechanism, the both ends of the tube body are equipped with sealing fixed mechanism, and the sealing fixed mechanism includes connector sleeve, bushing, annulus Shape slot, circular body, several elastic arms, several fixed teeth, several notches, fastening upper shield and circular cone shape sealing ring, the tube body Both ends be equipped with connector sleeve, the inner wall of the connecting pin of the connector sleeve and tube body is formed with conical portion, the conical portion The interior circular cone shape sealing ring equipped with outer wall fitting conical portion, the rear portion of the inner wall of the connector sleeve is equipped with circular slot, described The circular body matched is equipped in circular slot, the inner wall of the annular shape body is evenly distributed with elastic arm, the elastic arm Rear end be equipped with fixed tooth, contradict the bushing on the rear end of circular cone shape sealing ring equipped with front end in the connector sleeve, it is described Be distributed on the front end of bushing with the one-to-one notch of elastic arm, the rear end of the notch, which is equipped with, makes the rear end of elastic arm in The guide part that the heart is drawn close, the rear end of the connector sleeve are equipped with the fastening upper shield being threadedly coupled, and the rear end of the bushing is contradicted tight Gu in the rear inside of upper shield, the internal diameter of the circular cone shape sealing ring is slightly smaller than the outer diameter for the pvc pipe to be connected, the circular cone The rear end chamfering of the through-hole of shape sealing ring is formed with taper introduction part, and the big end outer diameter of the circular cone shape sealing ring is less than cone The outside diameter in portion, the end diameter of the circular cone shape sealing ring are greater than the end diameter of conical portion.
Preferably, the point diameter of the conical portion is less than the outer diameter for the pvc pipe to be connected.
Preferably, the tapered face of front edge chamfering of the bushing, the outer diameter of the bushing and the internal diameter of connector sleeve Equal, the internal diameter of the bushing is equal with the outer diameter for the pvc pipe to be connected.
Preferably, the internal diameter of the annular shape body is equal with the internal diameter of connector sleeve.
Preferably, the upper end of the elastic arm is the inclined-plane that the front is high and the back is low.
Beneficial effects of the present invention: in the use of the present invention, one end of pvc pipe to be inserted into and wear from the rear end of fastening upper shield Bushing and circular cone shape sealing ring are crossed until the insertion end of pvc pipe by the front end of conical portion is stopped that insertion cannot be further continued for, Then upper shield is fastened in rotation, fastening upper shield drives bushing to be done into connector sleeve into movement, and bushing pushes circular cone shape sealing ring It travelling forward, the outer wall of circular cone shape sealing ring is made to be close to conical portion, the inner wall of circular cone shape sealing ring is close to the outer wall of pvc pipe, When the rear end of elastic arm enters guide part, the rear end of elastic arm is drawn close under the action of guide part to center, elastic arm band Dynamic fixed tooth is pierced into the outer wall of pvc pipe, realizes the fixation to pvc pipe, compared with prior art, can good airproof performance, and make It is long with the service life, it is easy to connect.
Feature and advantage of the invention will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is a kind of structural schematic diagram of the pipe fitting of good airproof performance of the present invention.
In figure: 1- tube body, 2- seal fixed mechanism, 3-PVC pipe, 21- connector sleeve, 22- bushing, 23- annular shape slot, 24- The fixed tooth of circular body, 25- elastic arm, 26-, 27- notch, 28- fasten upper shield, 29- conical portion, 210- guide part, 211- Circular cone shape sealing ring, 212- taper introduction part.
[specific embodiment]
Refering to fig. 1, a kind of pipe fitting of good airproof performance of the present invention, including tube body 1 and two sealing fixed mechanisms 2, it is described The both ends of tube body 1 are equipped with sealing fixed mechanism 2, and the sealing fixed mechanism 2 includes connector sleeve 21, bushing 22, circular slot 23, circular body 24, several elastic arms 25, several fixed teeth 26, several notches 27, fastening upper shield 28 and circular cone shape sealing ring 211, the both ends of the tube body 1 are equipped with connector sleeve 21, and the connector sleeve 21 and the inner wall of the connecting pin of tube body 1 are formed with circular cone Shape portion 29, the interior circular cone shape sealing ring 211 equipped with outer wall fitting conical portion 29 of conical portion 29, the connector sleeve 21 The rear portion of inner wall is equipped with circular slot 23, and the circular body 24 matched, the annular shape body are equipped in the annular shape slot 23 24 inner wall is evenly distributed with elastic arm 25, and the rear end of the elastic arm 25 is equipped with fixed tooth 26, sets in the connector sleeve 21 There is front end to contradict bushing 22 on the rear end of circular cone shape sealing ring 211, is distributed on the front end of the bushing 22 and elastic arm 25 one-to-one notches 27, the rear end of the notch 27 are equipped with the guide part 210 for drawing close the rear end of elastic arm 25 to center, The rear end of the connector sleeve 21 is equipped with the fastening upper shield 28 being threadedly coupled, and the rear end of the bushing 22 is contradicted in fastening upper shield 28 In rear inside, the point diameter of the conical portion 29 is less than the outer diameter for the pvc pipe 3 to be connected, the cone sealing The internal diameter of circle 211 is slightly smaller than the outer diameter for the pvc pipe 3 to be connected, the rear end chamfering shape of the through-hole of the circular cone shape sealing ring 211 At there is taper introduction part 212, the big end outer diameter of the circular cone shape sealing ring 211 is less than the outside diameter of conical portion 29, described The end diameter of circular cone shape sealing ring 211 is greater than the end diameter of conical portion 29, the front edge chamfering of the bushing 22 at The outer diameter of tapered surface, the bushing 22 is equal with the internal diameter of connector sleeve 21, the internal diameter of the bushing 22 and the pvc pipe to be connect 3 outer diameter is equal, and the internal diameter of the annular shape body 24 is equal with the internal diameter of connector sleeve 21, and the upper end of the elastic arm 25 is preceding height Low inclined-plane afterwards.
The course of work of the present invention:
A kind of pipe fitting of good airproof performance of the present invention during the work time, by one end of pvc pipe 3 after fastening upper shield 28 End is inserted through bushing 22 and circular cone shape sealing ring 211 until the insertion end of pvc pipe 3 is stopped not by the front end of conical portion 29 Until capable of being further continued for insertion, upper shield 28 then is fastened in rotation, fastening upper shield 28 drives bushing 22 to do entrance into connector sleeve 21 Movement, bushing 22 push circular cone shape sealing ring 211 to travel forward, and the outer wall of circular cone shape sealing ring 211 is made to be close to conical portion 29, The inner wall of circular cone shape sealing ring 211 is close to the outer wall of pvc pipe 3, when the rear end of elastic arm 25 enters guide part 210, elasticity The rear end of arm 25 is drawn close under the action of guide part 210 to center, and elastic arm 25 drives the outer wall of the fixed piercing of tooth 26 pvc pipe 3, Realize fixation to pvc pipe 3, compared with prior art, can good airproof performance, and long service life is easy to connect.
Above-described embodiment is the description of the invention, is not limitation of the invention, after any pair of simple transformation of the present invention Scheme all belong to the scope of protection of the present invention.

Claims (5)

1. a kind of pipe fitting of good airproof performance, it is characterised in that: including tube body (1) and two sealing fixed mechanisms (2), the pipe The both ends of body (1) be equipped with sealing fixed mechanism (2), the sealing fixed mechanism (2) include connector sleeve (21), bushing (22), Circular slot (23), circular body (24), several elastic arms (25), several fixed teeth (26), several notches (27), fastening upper shield (28) it is equipped with connector sleeve (21) with circular cone shape sealing ring (211), the both ends of the tube body (1), the connector sleeve (21) and pipe The inner wall of the connecting pin of body (1) is formed with conical portion (29), and outer wall is equipped in the conical portion (29) and is bonded conical portion (29) circular cone shape sealing ring (211), the rear portion of the inner wall of the connector sleeve (21) are equipped with circular slot (23), the annular shape The circular body (24) matched is equipped in slot (23), the inner wall of the annular shape body (24) is evenly distributed with elastic arm (25), The rear end of the elastic arm (25) is equipped with fixed tooth (26), and front end is equipped in the connector sleeve (21) and is contradicted in cone sealing The bushing (22) on the rear end of (211) is enclosed, is distributed on the front end of the bushing (22) and is lacked correspondingly with elastic arm (25) Mouth (27), the rear end of the notch (27) are equipped with the guide part (210) for drawing close the rear end of elastic arm (25) to center, the company The rear end of female connector (21) is equipped with the fastening upper shield (28) being threadedly coupled, and the rear end of the bushing (22) is contradicted in fastening upper shield (28) Rear inside on, the internal diameter of the circular cone shape sealing ring (211) is slightly smaller than the outer diameter of the pvc pipe to be connected (3), the circle The rear end chamfering of the through-hole of conical seal ring (211) is formed with taper introduction part (212), the circular cone shape sealing ring (211) Big end outer diameter is less than the outside diameter of conical portion (29), and the end diameter of the circular cone shape sealing ring (211) is greater than cone The end diameter in portion (29).
2. a kind of pipe fitting of good airproof performance as described in claim 1, it is characterised in that: the front end of the conical portion (29) Diameter is less than the outer diameter of the pvc pipe to be connected (3).
3. a kind of pipe fitting of good airproof performance as described in claim 1, it is characterised in that: the front edge of the bushing (22) The outer diameter in the tapered face of chamfering, the bushing (22) is equal with the internal diameter of connector sleeve (21), the internal diameter of the bushing (22) and institute The outer diameter of the pvc pipe to be connected (3) is equal.
4. a kind of pipe fitting of good airproof performance as described in claim 1, it is characterised in that: the internal diameter of the annular shape body (24) It is equal with the internal diameter of connector sleeve (21).
5. a kind of pipe fitting of good airproof performance according to any one of claims 1 to 4, it is characterised in that: the elastic arm (25) upper end is the inclined-plane that the front is high and the back is low.
CN201611181617.3A 2016-12-20 2016-12-20 A kind of pipe fitting of good airproof performance Active CN106439354B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611181617.3A CN106439354B (en) 2016-12-20 2016-12-20 A kind of pipe fitting of good airproof performance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611181617.3A CN106439354B (en) 2016-12-20 2016-12-20 A kind of pipe fitting of good airproof performance

Publications (2)

Publication Number Publication Date
CN106439354A CN106439354A (en) 2017-02-22
CN106439354B true CN106439354B (en) 2019-10-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611181617.3A Active CN106439354B (en) 2016-12-20 2016-12-20 A kind of pipe fitting of good airproof performance

Country Status (1)

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CN (1) CN106439354B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB811384A (en) * 1956-08-16 1959-04-02 High Pressure Components Ltd Improvements in or relating to pipe joints or pipe couplings
EP0224188B1 (en) * 1985-11-28 1989-11-02 Mitsui & Co., Ltd. A seal joint structure
WO1995003508A1 (en) * 1993-07-20 1995-02-02 Philmac Pty. Ltd. Coupling for outer surface engagement of polymeric pipe
IL125370D0 (en) * 1997-08-23 1999-03-12 Friatec Ag Plug-in coupler
CN2371422Y (en) * 1998-11-10 2000-03-29 诸暨市枫叶钢塑管业有限公司 Large diameter pipe joint
GB2349929A (en) * 1999-05-14 2000-11-15 Hepworth Building Prod Pipe fitting

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