CN202884329U - Gas hose coupler - Google Patents

Gas hose coupler Download PDF

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Publication number
CN202884329U
CN202884329U CN 201220555203 CN201220555203U CN202884329U CN 202884329 U CN202884329 U CN 202884329U CN 201220555203 CN201220555203 CN 201220555203 CN 201220555203 U CN201220555203 U CN 201220555203U CN 202884329 U CN202884329 U CN 202884329U
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CN
China
Prior art keywords
gas
stuffing box
box gland
conical surface
abduction
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Expired - Fee Related
Application number
CN 201220555203
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Chinese (zh)
Inventor
阮迪荣
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Individual
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Individual
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Priority to CN 201220555203 priority Critical patent/CN202884329U/en
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Publication of CN202884329U publication Critical patent/CN202884329U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model belongs to the technical filed of gas pipelines, and discloses a gas hose coupler. The gas hose coupler comprises a hose connector, an outer threaded sleeve, an inner threaded sleeve, and a sealing sleeve. The gas hose coupler is characterized in that the rear side face of an adduction boss arranged on the inner side of the front end of the inner threaded sleeve and/or the front side face of an abduction flange arranged at the front end of the hose connector are/is conical surfaces/a conical surface. The rear portion of the sealing sleeve is assembled inside the hose connector and is closely matched with the hose connector. A place of the front end and/or a place of the rear end of the front portion of the sealing sleeve correspond/corresponds to the rear side face of the adduction boss and/or the front side face of the abduction flange are/is provided conical surfaces or a conical surface which are/is matched with the corresponding conical surfaces or the corresponding conical surface. Through the designing of the rear structure of the sealing sleeve which is assembled in the hose connector and closely matched with the hose connector, the gas hose coupler significantly improves sealing reliability. In addition, through the designing of a conical surface structure, the stress to the sealing sleeve is effectively reduced, the elasticity of the gas hose coupler is protected conveniently, and the durability of the gas hose coupler is improved.

Description

A kind of flexible pipe for gas joint
Technical field
The utility model belongs to the gas pipeline joint technical field, relates to the pipe coupling technology that connects source of the gas and gas cooker, specifically a kind of joint of the flexible pipe for gas for connecting source of the gas and gas cooker.
Background technique
Gas cooker has become the indispensable cooker of modern city family.Combustion gas because of its cleaning, convenient, heat conversion is high, lower-price characteristic, by people are liked.But the harm of the threat to life such as the blast that gas leakage may cause, poisoning and health does not allow people to ignore equally.This sealing to gas pipeline especially pipeline junction is had higher requirement.
Generally speaking, pipeline gas house lead in end can dispose a standardized gas joint (being commonly called as the pagoda joint), and the gas cooker suction port can dispose this standardized gas joint too.When gas cooker is installed, the gas joint of described kitchen range end is connected by one section gas hose (being generally called the gas range connecting tube) with the gas joint of source of the gas end gets final product.
Usually, for the ease of the dismounting gas cooker, meeting is respectively assembled a hose coupling at the two ends of the gas hose of the gas joint of the gas joint that is used for connection kitchen range end and source of the gas end, be respectively applied to be connected with the gentle source gas joint of kitchen range end gas joint, common a kind of described hose coupling comprise tubular hose connection, be sleeved on inner screw sheath and the seal ring of the internal thread that outer surface is provided with externally threaded external thread sleeve, internal surface is provided with to be cooperated with the outside thread of external thread sleeve on the hose connection.Wherein said hose connection rear end is connected with gas hose, front end is provided with the convex edge of abduction radially, described convex edge maximum diameter is greater than the internal diameter of described external thread sleeve, described inner screw sheath rear end by screw-internal thread fit at the external thread sleeve front end, front inner wall is provided with the boss that inwardly receive in the footpath, and described seal ring is arranged between described convex edge and the boss.When this hose coupling is connected with gas joint, at first gas joint is inserted hose coupling from front end, then rotate inner screw sheath or external thread sleeve, make the boss on the inner screw sheath close to the convex edge on the hose connection, under both squeezing actions, the seal ring that is positioned between the two deforms, and the seal ring inner ring compresses to the gas joint outer wall, realizes sealing.
Its shortcoming is, one, sealing surface is little, and sealing surface only limits to front side, the abduction convex edge surface of contact of seal ring inner ring and gas joint outer wall surface of contact and seal ring rear side and hose connection front end, and sealing effect is unreliable.Two, extruded type (rubber material is pressed against the combustion gas interface outer wall) distortion realization sealing occurs in seal ring under the effect of axial compression power, seal ring need bear huge unnecessary axial pressure, rubber material is damaged easily and follows the string by excess compression, reduces the seal ring life-span.Three, between seal ring and the side convex edge, front and back impacting force much larger than and the outer wall of gas source connector or kitchen range end connector between impacting force.For reaching certain tightness, need use very that great strength screws inner screw sheath, all bring certain difficulty for assembling and dismounting.
In addition, in the existing sealing configuration, seal ring adopts Dingqing's glue material, and tolerance is poor, and is aging easily, affects the seal ring life-span.Need frequent, brought trouble to the user, and increased potential safety hazard.
Summary of the invention
For the above-mentioned problems in the prior art, the utility model improves gas kitchen pipe joint, namely is convenient to install to reach, and seals again reliable technique effect.
For achieving the above object, the technological scheme that the utility model adopts is: a kind of flexible pipe for gas joint comprises hose connection, is sleeved on inner screw sheath and a stuffing box gland of the internal thread that outer surface is provided with externally threaded external thread sleeve, internal surface is provided with to be cooperated with the outside thread of external thread sleeve on the hose connection.Wherein said hose connection rear end is connected with flexible pipe for gas, front end is provided with an abduction convex edge, the maximum diameter of described abduction convex edge is greater than the internal diameter of described external thread sleeve, and at the external thread sleeve front end, inner screw sheath front end inboard is provided with interior receipts boss by screw-internal thread fit in described inner screw sheath rear end.The inboard at least part of surface of described stuffing box gland and gas joint outer surface interference fit.
It is characterized in that, the leading flank of the trailing flank of the interior receipts boss of described inner screw sheath front end inboard and/or the abduction convex edge of hose connection front end is the conical surface, described stuffing box gland rear portion is assemblied in hose connection inside, at least part of surface of stuffing box gland rear outside and hose connection inwall interference fit; The position of receiving the leading flank of the trailing flank of boss and/or abduction convex edge in the front end of stuffing box gland front portion and/or the rear end correspondence be provided with the conical surface of corresponding cone match.
On the one hand, such scheme stretches in the hose connection and the stuffing box gland rear structure that matches with the hose connection inwall by design, has greatly increased the sealing surface between pipe joint and kitchen range end connector or gas source connector, has improved highlightedly sealing reliability.On the other hand, this scheme design conical surface convex edge structure cooperates conical surface seal cover end-face structure, and when screwing inner screw sheath, conical surface convex edge can produce the effect component that points to the axle center at stuffing box gland.This effect component directly promotes stuffing box gland and compresses kitchen range end connector or gas source connector, and stuffing box gland is stressed little and distortion is slight, is conducive to its protection elasticity, increases its serviceability.The 3rd, the structural design of conical surface convex edge makes inner screw sheath and hose connection to the stuffing box gland active force, directly produce an effect component (radial component) that points to the gas joint outer surface, be that inner screw sheath, hose connection directly point to gas joint to a part (radial component) in the active force of stuffing box gland, this component directly pushes stuffing box gland and compresses gas joint outer surface realization sealing.Extruded to the inside with seal ring inner ring in the prior art and produce the pressure of gas joint is realized that sealing compares, inner screw sheath only needs that stuffing box gland is produced very little power, and (radial component is enough to press seal and gets final product, and in the prior art, need the crush seal circle to make it distortion).
In the pipe joint described in the utility model, any one is the conical surface in the leading flank of the trailing flank of the interior receipts boss of described inner screw sheath front end inboard and the abduction convex edge of hose connection front end, with the cone match at corresponding position on the stuffing box gland, can substantially reach above-mentioned technique effect.Obviously, both are the conical surface, and its effect is optimum.
In technique scheme, the effect of each conical surface is stuffing box gland is produced radially pushing force, so the tapering of the conical surface has certain influence to effect.Tapering is less, and radial component is larger, and conical surface produce an effect is more obvious.Tapering is larger, and radial component is less, and conical surface produce an effect is less.
As improvement, described stuffing box gland rear inside is provided with the conical surface.When gas joint Inserting Tube joint, the stuffing box gland rear inside conical surface matches with the conical surface of gas joint front end, has equally seal action.
As improvement, described stuffing box gland external rear face can be along circumferentially arranging at least one circular fin, and circular fin can make pipe joint of the present utility model further joint line sealing on the basis of face sealing, reaches better sealing effect.
As improvement, the position of the corresponding described abduction of described external thread sleeve front end convex edge and the trailing flank of abduction convex edge should cooperatively interact and be advisable.The abduction convex edge that is conducive to hose connection is stressed evenly, can effectively avoid the convex edge distortion.
The improvement that such scheme all carries out the sealing configuration of pipe joint on the structure, in addition, the utility model is also for the existing shortcoming of existing Dingqing's glue material seal ring, a kind of scheme by the alternative Nitrile Rubber of the better tetrafluoro glue of tolerance is proposed, from material, stuffing box gland is made further improvement.On this further improved basis, the reliability of pipe joint further improves, and has removed the trouble of user's frequent seal ring from.
Description of drawings
Fig. 1 is standardized gas joint cross-sectional view;
Fig. 2 is inner screw sheath cross-sectional view described in the utility model;
Fig. 3 is external thread sleeve described in the utility model and hose connection composite structure generalized section;
Fig. 4 is stuffing box gland cross-sectional view described in the utility model;
Fig. 5 is pipe joint described in the utility model and gas joint linkage structure generalized section;
Fig. 6 is pipe joint described in the utility model and gas joint linkage structure decomposing schematic representation.
Embodiment
Further specify the specific implementation of the technical solution of the utility model below in conjunction with accompanying drawing.
With reference to Fig. 1, this figure is depicted as the structure of standard piece gas joint 1, and as seen, its tail end outer side surface is provided with a conical surface 2 among the figure.
With reference to Fig. 2-4, the novel described pipe joint of this reality is comprised of inner screw sheath 3, hose connection 9, external thread sleeve 10, stuffing box gland 18.Described inner screw sheath inwall is provided with internal thread 6, and described inner screw sheath front end is provided with interior receipts boss 5 structures, and the trailing flank 4 of described boss 5 is the conical surface.Described external thread sleeve 10 is sleeved on the hose connection 9, and its outer surface is provided with outside thread 8, and described outside thread 8 matches with internal thread 6.Described hose connection 9 rear ends (when the utility model is described pipe joint, take near the direction of fuel tube as after, be front away from the direction of fuel tube) connect bellows 11, front end is provided with an abduction convex edge 7, leading flank 19 and the trailing flank of described convex edge 7 are the conical surface.The trailing flank of described convex edge 7 and the corresponding cooperation of described external thread sleeve front-end face.Described stuffing box gland 18 can be divided in two parts on structure consists of, and inner aperture, front and rear part is identical, and its middle front part 13 external diameters are large than rear portion 15, and anterior 13 rear and front end respectively has a conical surface 12,14.Rear portion 15 outer surfaces are interval with two fins 16, and rear portion 15 rear inside are provided with the conical surface 17.
With reference to Fig. 5, when described stuffing box gland and inner screw sheath 3, hose connection 9, external thread sleeve 10 and gas joint were assembled together, stuffing box gland rear portion 15 was stretched in the hose connection, outer surface and hose connection 9 inwall drive fits.The anterior rear end of the stuffing box gland conical surface 14 cooperates with hose connection convex edge leading flank, and the front end conical surface 12 cooperates with inner screw sheath boss 5 trailing flanks.The afterbody conical surface 2 of described gas joint 1 matches with the stuffing box gland rear inside conical surface.
What should be noted that is, more than exemplifying embodiment only is a kind of concrete manifestation form of the present utility model, and the related technology contents of the utility model never only limits to this.Under the guidance of technical solutions of the utility model, any specific embodiment of other that can make all should be within the utility model protection domain.。

Claims (5)

1. flexible pipe for gas joint comprises hose connection, is sleeved on inner screw sheath and a stuffing box gland of the internal thread that outer surface is provided with externally threaded external thread sleeve, internal surface is provided with to be cooperated with the outside thread of external thread sleeve on the hose connection; Wherein said hose connection rear end is connected with flexible pipe for gas, front end is provided with an abduction convex edge, the maximum diameter of described abduction convex edge is greater than the internal diameter of described external thread sleeve, and at the external thread sleeve front end, inner screw sheath front end inboard is provided with interior receipts boss by screw-internal thread fit in described inner screw sheath rear end; The inboard at least part of surface of described stuffing box gland and gas joint outer surface interference fit; It is characterized in that, the leading flank of the trailing flank of the interior receipts boss of described inner screw sheath front end inboard and/or the abduction convex edge of hose connection front end is the conical surface, described stuffing box gland rear portion is assemblied in the hose connection, at least part of surface of stuffing box gland rear outside and hose connection inwall interference fit; The position of receiving the leading flank of the trailing flank of boss and/or abduction convex edge in the front end of stuffing box gland front portion and/or the rear end correspondence be provided with the conical surface of corresponding cone match.
2. a kind of flexible pipe for gas joint according to claim 1 is characterized in that, described stuffing box gland rear inside is provided with the conical surface that matches with the conical surface of gas joint front end.
3. a kind of flexible pipe for gas joint according to claim 1 is characterized in that, described stuffing box gland external rear face is along at least one circular fin circumferentially is set.
4. a kind of flexible pipe for gas joint according to claim 1 is characterized in that, the position of the corresponding described abduction of described external thread sleeve front end convex edge cooperates with the trailing flank of abduction convex edge.
5. each described a kind of flexible pipe for gas joint is characterized in that according to claim 1-4, and described stuffing box gland adopts the tetrafluoro glue material to process.
CN 201220555203 2012-10-25 2012-10-25 Gas hose coupler Expired - Fee Related CN202884329U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220555203 CN202884329U (en) 2012-10-25 2012-10-25 Gas hose coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220555203 CN202884329U (en) 2012-10-25 2012-10-25 Gas hose coupler

Publications (1)

Publication Number Publication Date
CN202884329U true CN202884329U (en) 2013-04-17

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Application Number Title Priority Date Filing Date
CN 201220555203 Expired - Fee Related CN202884329U (en) 2012-10-25 2012-10-25 Gas hose coupler

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CN (1) CN202884329U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103807468A (en) * 2014-02-27 2014-05-21 丹阳市飞轮气体阀门有限公司 Low-temperature safety valve air seal
CN106820530A (en) * 2016-12-30 2017-06-13 重庆鹏旭新能源有限公司 A kind of water heater integration formula shampoo trap
CN107504304A (en) * 2017-09-01 2017-12-22 全球能源互联网研究院 A kind of change current valve module FEP hose joint assemblies
CN110397804A (en) * 2019-07-11 2019-11-01 浙江工贸职业技术学院 A kind of combustion gas pipe connecting device
CN112361103A (en) * 2020-11-26 2021-02-12 胥宥希 Soft and hard pipeline connection structure for high-pressure gas transmission

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103807468A (en) * 2014-02-27 2014-05-21 丹阳市飞轮气体阀门有限公司 Low-temperature safety valve air seal
CN106820530A (en) * 2016-12-30 2017-06-13 重庆鹏旭新能源有限公司 A kind of water heater integration formula shampoo trap
CN107504304A (en) * 2017-09-01 2017-12-22 全球能源互联网研究院 A kind of change current valve module FEP hose joint assemblies
CN110397804A (en) * 2019-07-11 2019-11-01 浙江工贸职业技术学院 A kind of combustion gas pipe connecting device
CN112361103A (en) * 2020-11-26 2021-02-12 胥宥希 Soft and hard pipeline connection structure for high-pressure gas transmission
CN112361103B (en) * 2020-11-26 2022-10-25 江苏萤谷信息科技有限公司 Soft and hard pipeline connection structure for high-pressure gas transmission

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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: 20130417

Termination date: 20151025

EXPY Termination of patent right or utility model