CN205331698U

CN205331698U - Gas -supply pipe overflow connects

Info

Publication number: CN205331698U
Application number: CN201521022870.5U
Authority: CN
Inventors: 赵永捷
Original assignee: Chonqing Fuyue Technology Co Ltd
Current assignee: Chonqing Fuyue Technology Co Ltd
Priority date: 2015-12-10
Filing date: 2015-12-10
Publication date: 2016-06-22
Anticipated expiration: 2025-12-10

Abstract

The utility model discloses gas -supply pipe overflow connects is provided with the connector respectively on two terminal surfaces of body, and the connector is cylindrical, and the body is hollow structure, has seted up the through -hole on the connector, and annular draw -in groove has been seted up to through -hole and pipe body inner cavity intercommunication on the connector, set up the pressure port with the pipe body inner cavity intercommunication on the body. Through the connector, can connect the pipeline at its both ends and fix a position. Owing to set up the draw -in groove, can firmly compress tightly ring - shaped rubber pad in the draw -in groove. When using, there be pressure port owing to opening on the body for the inside and outside gas pressure of body is the same, and like this, the pressure in the software will be greater than ambient pressure, makes the ring - shaped rubber pad on the software rely on the gas pressure in the pipeline to compress tightly in the draw -in groove naturally, and can not be because of the live time reduction of build -up of pressure.

Description

Appendix overflow adapter

Technical field

This utility model relates to a kind of conduit coupling, is specifically related to a kind of appendix overflow adapter。

Background technology

Joint generally divides two kinds, adapter of plastic and metal joint, and the production cost of adapter of plastic is relatively low, and processing technology is simple。Metal joint because of complex manufacturing technology, uses material requirements high, and costly, metal joint compares adapter of plastic to be had more excellent pressure price, resistance to elevated temperatures, is the first-selection that uses of the environment of some high requests。

In the course of conveying of fuel gas, in order to ensure safety, it is necessary to the strict prescription controlling joint。Being generally adopted the joint of metal, in security reliability, the person of having shows preferably。At present, joint at pipeline, devise the pressure release collection device of a kind of software, the pressure in gas pipeline can be utilized, the ring-shaped rubber pad that joint is wrapped up firmly is pressed on pipe joint place, make the Bonding pressure change in pressure along with pipeline of joint, have better anticreep performance。But, current pipe joint is all the jointing sealed, and its effect mainly provides sealed environment and the bonding strength ensured between pipeline。Therefore, above-mentioned pressure release collection device is coordinated in use, it is impossible to autonomous filling gas in software, it is difficult to realize the effect of its sealing。

Utility model content

The purpose of this utility model is in that to provide a kind of appendix overflow adapter, it is ensured that the bonding strength between pipeline, it is possible to autonomous sealing to joint fills gas in software, utilize gas pressure to seal。

For reaching above-mentioned purpose, the technical solution of the utility model is: appendix overflow adapter, including cylindrical body, being respectively arranged with union joint on two end faces of described body, described union joint is cylindrical, and described body is hollow structure, described union joint offers through hole, described through hole connects with tube cavity, described union joint offers the draw-in groove of annular, described body offers the pressure port connected with tube cavity。

When adopting technique scheme, pass through union joint, it is possible to the pipeline at its two ends is attached and is positioned。Owing to being provided with draw-in groove, it is possible to ring-shaped rubber pad is firmly pressed in draw-in groove。When deployed, owing to body having pressure port, make the gas pressure inside and outside body identical, so, pressure in software will more than ambient pressure, the ring-shaped rubber pad on software is made to rely on the gas pressure in pipeline to be naturally pressed in draw-in groove, and will not the minimizing of build-up of pressure because of the time of use。Comparing the mode that traditional anchor ear compresses, after life-time service, anchor ear can because aging reason build-up of pressure weakens so that bonding strength declines, and causes the generation of gas leakage。And in this programme because pressure is derived from pipe interior gas, will not along with use environment change build-up of pressure reduction, thus avoiding the generation of traditional gas leak phenomenon。

Further improvement project, the cross sectional shape of described pressure port is oval。

Further improvement project, described pressure port is inclined on body。The pressure port being obliquely installed so that form spiral air flow by the gas of pressure port, it is prevented that directly the body wall of software is caused bigger impact。

Further improvement project, described union joint is one-body molded with body。Integrated union joint and body have bigger structural strength, in use more safe and reliable。

Further improvement project, the diameter of described body is 1.5 times of union joint diameter。

Further improvement project, described pressure port is provided with four, and described four pressure ports are distributed on the middle section of body。It is distributed on middle section, it is possible to be easy to locating and machining, and in use can be positioned as close to the middle part of software, even if breakage occurs software, after repairing, nor affect on use。

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail:

Fig. 1 is the structural representation of this utility model appendix overflow adapter embodiment。

Detailed description of the invention

Accompanying drawing labelling: body 1, union joint 2, draw-in groove 3, pressure port 11。

As it is shown in figure 1, this utility model appendix overflow adapter, including cylindrical body 1, body 1 is hollow hard structure。In two terminations of body 1, being respectively arranged with union joint 2, union joint 2 is also cylindrical, has the draw-in groove 3 of annular on the side face of union joint 2。Draw-in groove 3 is primarily used to the binding groove as gas pipeline junction, it is provided that certain mechanical coupling strength, it is prevented that gas pipeline slips at union joint 2 place。Pipe shaft place at body 2, have the pressure port 11 that the cavity with body 1 connects, by pressure port 11, gas in joint middle tube body 1 can enter into the environment between body 1 and software from pressure port 11, make the gas pressure in whole software identical with the gas pressure in pipeline, and utilize this gas pressure that ring-shaped rubber pad is firmly pressed on pipe joint place。Especially, the shape of pressure port 11 is designed as ellipse, and in the process of pressure port 11 processing, adopt the bore mode of inclination, pressure port 11 is obliquely installed so that form spiral air flow by the gas of pressure port 11, it is prevented that directly the body wall of software to be caused bigger impact。

During use, by the union joint 2 at body 1 two ends, end relative for two gas pipelines is connected with union joint 2, and ring-shaped rubber is encased inside in the draw-in groove 3 on union joint 2, be prevented from the ring-shaped rubber pad axial slip along union joint 2 by draw-in groove 3。Being connected at two ends after fixing, when carrying gas in gas pipeline, the pressure port 11 that gas can pass through on body 1 be threaded in the space between body 1 and software, and fills completely whole space, at the pressure that the inside and outside formation of body 1 is identical。Owing to ring-shaped rubber pad is integrally fixed on software, after being full of gases at high pressure, being firmly pressed on by ring-shaped rubber pad in draw-in groove 3 so that after a long time use in software, ring-shaped rubber pad, without losing its pressure, plays the purpose preventing leakage。

By union joint 2, it is possible to the pipeline at its two ends is attached and positions。Owing to being provided with draw-in groove 3, it is possible to ring-shaped rubber pad is firmly pressed in draw-in groove 3。When deployed, owing to body 1 having pressure port 11, make the gas pressure inside and outside body 1 identical, so, pressure in software will more than ambient pressure, the ring-shaped rubber pad on software is made to rely on the gas pressure in pipeline to be naturally pressed in draw-in groove 3, and will not the minimizing of build-up of pressure because of the time of use。Comparing the mode that traditional anchor ear compresses, after life-time service, anchor ear can because aging reason build-up of pressure weakens so that bonding strength declines, and causes the generation of gas leakage。And in this programme because pressure is derived from pipe interior gas, will not along with use environment change build-up of pressure reduction, thus avoiding the generation of traditional gas leak phenomenon。

Above-described is only preferred implementation of the present utility model; should be understood that; for a person skilled in the art; without departing from the concept of the premise utility; some deformation and improvement can also be made; these also should be considered as protection domain of the present utility model, and these are all without affecting effect and the practical applicability that this utility model is implemented。

Claims

1. appendix overflow adapter, including cylindrical body, two end faces of described body are respectively arranged with union joint, described union joint is cylindrical, and described body is hollow structure, and described union joint offers through hole, described through hole connects with tube cavity, it is characterized in that, described union joint offers the draw-in groove of annular, described body offers the pressure port connected with tube cavity。

2. appendix overflow adapter according to claim 1, is characterized in that, the cross sectional shape of described pressure port is oval。

3. appendix overflow adapter according to claim 1 and 2, is characterized in that, described pressure port is inclined on body。

4. appendix overflow adapter according to claim 1, is characterized in that, described union joint is one-body molded with body。

5. the appendix overflow adapter according to claim 1 or 4, is characterized in that, the diameter of described body is 1.5 times of union joint diameter。

6. appendix overflow adapter according to claim 1, is characterized in that, described pressure port is provided with four, and described four pressure ports are distributed on the middle section of body。