CN201651628U - Corrugated pipe rapid coupling with leak detection and used for fuel gas - Google Patents

Corrugated pipe rapid coupling with leak detection and used for fuel gas Download PDF

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Publication number
CN201651628U
CN201651628U CN2010201688660U CN201020168866U CN201651628U CN 201651628 U CN201651628 U CN 201651628U CN 2010201688660 U CN2010201688660 U CN 2010201688660U CN 201020168866 U CN201020168866 U CN 201020168866U CN 201651628 U CN201651628 U CN 201651628U
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CN
China
Prior art keywords
corrugated pipe
attaching nut
bellows
leak detection
ring
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
Application number
CN2010201688660U
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Chinese (zh)
Inventor
王靖崇
Original Assignee
王靖崇
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 王靖崇 filed Critical 王靖崇
Priority to CN2010201688660U priority Critical patent/CN201651628U/en
Application granted granted Critical
Publication of CN201651628U publication Critical patent/CN201651628U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a corrugated pipe rapid coupling with leak detection and used for fuel gas, which comprises the corrugated pipe, a fitting body and a coupling nut. One end of the corrugated pipe is penetrated and sheathed in the coupling nut; the coupling nut is connected with the fitting body by threads; a locating ring matched with the inner ring of the coupling nut is arranged at the periphery at wave peak at the inner side of an interface end surface of the corrugated pipe in the coupling nut; a sealing ring is arranged between the interface end surface of the corrugated pipe and the fitting body, and formed by a sealing loop and a locating loop integrally; the interface end surface of the corrugated pipe and the fitting body are sealed by the sealing loop, and the locating loop is inserted in the corrugated pipe. The corrugated pipe rapid coupling with leak detection and used for fuel gas overcomes the defect of poor sealing performance of a common corrugated pipe coupling in the prior art, and has the advantages of simple structure, convenient assembly, strong sealing performance and safe and reliable use; and by the design, after the coupling nut is screwed tightly, the fitting body and the interface end surface of the corrugated pipe can be sealed stably.

Description

Band leak detection function quick joint of corrugated pipe for gas
Technical field
The utility model relates to a kind of band leak detection function quick joint of corrugated pipe for gas.
Background technique
Traditional corrugated pipe for gas joint, its inner seal ring location is inaccurate, easy to be shifted, thereby influences the sealing effect of joint product, and lacks necessary leak detection design in above-mentioned corrugated pipe for gas joint, has comparatively serious potential safety hazard.
Summary of the invention
In order to overcome the relatively poor problem of the sealability of common corrugated pipe connector in the prior art, the utility model provides a kind of band leak detection function quick joint of corrugated pipe for gas, this band leak detection function quick joint of corrugated pipe for gas simple in structure, easy to assembly, sealability is strong, safe and reliable.
The technological scheme that its technical problem that solves the utility model adopts is: comprise bellows, fittings body and attaching nut, bellows one end is set among the attaching nut, the attaching nut is threaded with fittings body, the crest periphery of the interface end face inboard of attaching nut's inner corrugated pipe is provided with the positioning ring that matches with attaching nut's inner ring, between the interface end face of bellows and fittings body, be provided with seal ring, seal ring is made of integrated seal ring and positioning ring, by the seal ring sealing, positioning ring inserts in the bellows between the interface end face of bellows and the fittings body.
Take over control sheath at the bellows overcoat, by the sealing of sealing collar, offer the air guide leak hunting aperture on the attaching nut between the attaching nut of protecting cover and periphery.
Positioning ring is spliced by the semicircular ring of symmetry.
The utility model, can very stably seal between the interface end face of fittings body and bellows after screwing the attaching nut by above-mentioned specific design, has advantage simple in structure, easy to assembly, that sealability is strong, safe and reliable.
Description of drawings
Below in conjunction with drawings and Examples detailed content of the present utility model is described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of positioning ring.
Embodiment
As shown in the figure, the utility model comprises bellows 1, fittings body 2 and attaching nut 3, bellows 1 one ends are set among the attaching nut 3, attaching nut 3 is threaded with fittings body 2, the crest periphery of interface end face 4 inboards of attaching nut's 3 inner corrugated pipes 1 is provided with the positioning ring 5 that matches with attaching nut's 3 inner rings, positioning ring 5 is spliced by the semicircular ring of symmetry, and positioning ring 5 can limit attaching nut 3 position.Be provided with seal ring between the interface end face 4 of bellows 1 and fittings body 2, seal ring is made of integrated seal ring 6 and positioning ring 7, and by seal ring 6 sealings, positioning ring 7 inserts in the bellowss 1 between the interface end face 4 of bellows 1 and the fittings body 2.After seal ring integral body is located by the positioning ring in the insertion bellows 17, basicly stable even the position of seal ring 6 also can be kept under the sealing load that fittings body 2 inserts, strengthened sealing effect.Take over control sheath 8 at bellows 1 overcoat, by 9 sealings of sealing collar, offer air guide leak hunting aperture 10 on the attaching nut 3 between the attaching nut 3 of protecting cover 8 and periphery.If the tube wall of bellows 1 occur to leak, the combustion gas meeting of Guo Louing is discharged from air guide leak hunting aperture 10 along protecting cover 8 inwalls so, and by Equipment Inspection to after give a warning.Above-described embodiment only is that the preferred implementation to the utility model band leak detection function quick joint of corrugated pipe for gas is described; be not that design and scope to model utility limits; under the prerequisite that does not break away from the utility model scheme; various external form modification and improvement that those skilled in the art make the technical solution of the utility model all should fall into the protection domain of the utility model band leak detection function quick joint of corrugated pipe for gas.

Claims (3)

1. be with the leak detection function quick joint of corrugated pipe for gas for one kind, comprise bellows, fittings body and attaching nut, bellows one end is set among the attaching nut, the attaching nut is threaded with fittings body, the crest periphery of the interface end face inboard of attaching nut's inner corrugated pipe is provided with the positioning ring that matches with attaching nut's inner ring, it is characterized in that between the interface end face (4) of bellows (1) and fittings body (2), being provided with seal ring, seal ring is made of integrated seal ring (6) and positioning ring (7), by seal ring (6) sealing, positioning ring (7) inserts in the bellows (1) between the interface end face (4) of bellows (1) and the fittings body (2).
2. band leak detection function quick joint of corrugated pipe for gas according to claim 1, it is characterized in that taking over control sheath (8) at bellows (1) overcoat, by sealing collar (9) sealing, offer air guide leak hunting aperture (10) on the attaching nut (3) between the attaching nut (3) of protecting cover (8) and periphery.
3. band leak detection function quick joint of corrugated pipe for gas according to claim 1 and 2 is characterized in that positioning ring (5) is spliced by the semicircular ring of symmetry.
CN2010201688660U 2010-04-18 2010-04-18 Corrugated pipe rapid coupling with leak detection and used for fuel gas Expired - Fee Related CN201651628U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201688660U CN201651628U (en) 2010-04-18 2010-04-18 Corrugated pipe rapid coupling with leak detection and used for fuel gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201688660U CN201651628U (en) 2010-04-18 2010-04-18 Corrugated pipe rapid coupling with leak detection and used for fuel gas

Publications (1)

Publication Number Publication Date
CN201651628U true CN201651628U (en) 2010-11-24

Family

ID=43116868

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201688660U Expired - Fee Related CN201651628U (en) 2010-04-18 2010-04-18 Corrugated pipe rapid coupling with leak detection and used for fuel gas

Country Status (1)

Country Link
CN (1) CN201651628U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103244773A (en) * 2013-05-17 2013-08-14 林仁国 Quick connector for gas conveying bellows
CN104595726A (en) * 2015-01-19 2015-05-06 傅永财 Natural gas pipeline system having leakage warming function
CN105371109A (en) * 2015-11-18 2016-03-02 无锡市三六九钢管有限公司 Gas-leakage prompt type natural gas pipe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103244773A (en) * 2013-05-17 2013-08-14 林仁国 Quick connector for gas conveying bellows
CN103244773B (en) * 2013-05-17 2014-12-03 林仁国 Quick connector for gas conveying bellows
CN104595726A (en) * 2015-01-19 2015-05-06 傅永财 Natural gas pipeline system having leakage warming function
CN105371109A (en) * 2015-11-18 2016-03-02 无锡市三六九钢管有限公司 Gas-leakage prompt type natural gas pipe

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101124

Termination date: 20110418