CN105736775A - Pipeline fuel gas safe self-closing valve - Google Patents
Pipeline fuel gas safe self-closing valve Download PDFInfo
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- CN105736775A CN105736775A CN201410756294.0A CN201410756294A CN105736775A CN 105736775 A CN105736775 A CN 105736775A CN 201410756294 A CN201410756294 A CN 201410756294A CN 105736775 A CN105736775 A CN 105736775A
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- valve
- valve body
- floating core
- closing valve
- closing
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Abstract
The invention discloses a pipeline fuel gas safe self-closing valve. The pipeline fuel gas safe self-closing valve comprises an upper cover and a valve body, wherein the valve body is provided with a gas inlet end and a gas outlet end and integrally connected with a cut-off valve used for opening or closing the gas outlet end; an upper chamber, a lower chamber and a valve opening are formed in the valve body; the lower chamber is connected with the gas inlet end; an isolation piece is arranged in the upper chamber, the lower portion of the isolation piece is connected with a floating core rod, and the upper portion of the isolation piece is provided with a permanent magnet; the floating core rod is provided with a closing ring; an annular groove is formed in the valve body and located on the outer side of the valve opening; a sealing ring which is used for being matched with the closing ring to seal the valve opening is arranged in the annular groove; a film is arranged in the upper chamber and located above the isolation piece; the upper portion of the film is connected with a pulling rod, the upper end of the pulling rod penetrates out of the valve body, and the lower end of the pulling rod penetrates through the film to be matched with the permanent magnet. As the cut-off valve is additionally arranged on the pipeline fuel gas safe self-closing valve, the self-closing valve can be closed rapidly. The cut-off valve and the valve body are connected integrally, so that the trouble of assembling is saved, and the sealing performance is improved.
Description
Technical field
The present invention relates to a kind of self-closing valve, particularly relate to a kind of pipeline gas self-closing valve.
Background technology
In actual life, people use a lot of burnt gas valve, but its structure is complicated, installation difficulty, cost is high, and response speed is slow, and closure effect is not good, poor reliability, easily cause potential safety hazard, simultaneously when gas pipeline superpressure supply and hypotony occurs, stop the supple of gas or steam or connects being automatically switched off of uncontrollable valve when the flexible pipe of gas appliance leaks air suddenly, cause gas leakage, very easily initiation fire, blast, the accident such as poisoning, bring very big danger to user.The pipeline gas self-closing valve adopted at present, when closing valve, response action is slower, it would be highly desirable to improve.Further, existing pipeline gas self-closing valve is when needs are closed, it is impossible to realize quick closedown.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency of the prior art, it is provided that a kind of pipeline gas self-closing valve.This pipeline gas self-closing valve is by setting up the stop valve for opening or closing described outlet side, it is possible to this self-closing valve of quick closedown, and described stop valve is connected with valve body formula, eliminates the trouble of assembling, improves sealing.
nullFor achieving the above object，The technical solution used in the present invention is: pipeline gas self-closing valve，It is characterized in that: include upper cover and valve body，Described valve body is provided with inlet end and outlet side，Described valve body is connected with the stop valve for opening or closing described outlet side，Upper chamber and lower chambers it is provided with and for connecting the valve port of described upper chamber and lower chambers in described valve body，Described lower chambers is connected with inlet end，The passage for connecting described upper chamber and the port of export it is provided with in described valve body，It is provided with shaping piece in described upper chamber，Described shaping piece be connected below floating core bar，The upper end of described floating core bar is be slidably matched through shaping piece and with described shaping piece，Described shaping piece be provided above being fixed on the permanent magnet of floating core bar upper end，On described floating core bar and be positioned at the closed-loop being arranged below for blocking described valve port of described shaping piece，In described valve body and be positioned at the outside of valve port and offer cannelure，The sealing ring for matching to block described valve port with described closed-loop it is provided with in described cannelure，In described upper chamber and be positioned at described shaping piece be provided above epithelium，Described epithelium be connected above pull bar，The upper end of described pull bar passes valve body，The lower end of described pull bar is through epithelium and coordinates with described permanent magnet magnetic.
Above-mentioned pipeline gas self-closing valve, it is characterised in that: described stop valve is ball valve.
Above-mentioned pipeline gas self-closing valve, it is characterised in that: being cased with spring on described floating core bar, the upper end of described spring is connected with shaping piece, and the lower end of described spring is fixed on floating core bar.
Above-mentioned pipeline gas self-closing valve, it is characterised in that: on described epithelium and be positioned at the arcuate structure that the position inside its outer rim is concave downward.
Above-mentioned pipeline gas self-closing valve, it is characterised in that: described bottom chamber is provided with the guide cylinder coordinating to guide described floating core bar to move up and down with described floating core bar lower slide.
Above-mentioned pipeline gas self-closing valve, it is characterised in that: it is provided with the first cylinder for fixing described shaping piece one end in described upper chamber and for fixing the second cylinder of the described shaping piece other end.
Above-mentioned pipeline gas self-closing valve, it is characterised in that: described pull bar passes the part of valve body and is provided with the handle conveniently pulling described pull bar.
Above-mentioned pipeline gas self-closing valve, it is characterised in that: described pull bar is fabricated from iron.
Above-mentioned pipeline gas self-closing valve, it is characterised in that: described floating core bar is made of aluminum.
Above-mentioned pipeline gas self-closing valve, it is characterised in that: described floating core bar is integrally formed formula structure with closed-loop.
The present invention compared with prior art has the advantage that
1, the present invention by arranging spring on floating core bar, it is possible to when the input pressure of combustion gas is more than the upper limit of the service pressure set, floating core bar is under the effect of spring-return power, and fast downlink, thus driving closed-loop to be closed by valve port.
2, on epithelium of the present invention and be positioned at the arcuate structure that the position inside its outer rim is concave downward, by the design of this arcuate structure, it is possible to make epithelium drive upper core bar to have enough range abilities when moving up.
3, briquetting lower surface of the present invention is provided with the annular outer corresponding with annular seal groove, can realize, by arranging annular outer, the sealing that sealing ring is good, it is achieved upper cavity and lower chamber are better isolated.
4, the present invention to realize cost low, result of use is good, it is simple to promote the use of.
In sum, present configuration is simple, and novel in design reasonable, functional reliability is high, and long service life, result of use is good, it is simple to promote the use of.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Description of reference numerals:
1 upper cover；2 valve bodies；3 inlet ends；
4 first cylinders；5 sealing rings；6 lower chambers；
7 guide cylinders；8 valve ports；9 closed-loops；
10 passages；11 outlet sides；12 floating core bars；
13 second cylinders；14 shaping pieces；15 permanent magnets；
16 pull bars；17 handles；18 springs；
19 epitheliums；19-1 arcuate structure；20 upper chamber；
21 stop valves.
Detailed description of the invention
nullA kind of pipeline gas self-closing valve as shown in Figure 1，Including upper cover 1 and valve body 2，Described valve body 2 is provided with inlet end 3 and outlet side 11，Described valve body 2 is connected with the stop valve 21 for opening or closing described outlet side 11，Upper chamber 20 and lower chambers 6 it is provided with and for connecting the valve port 8 of described upper chamber 20 and lower chambers 6 in described valve body 2，Described lower chambers 6 is connected with inlet end 3，The passage 10 for connecting described upper chamber 20 and the port of export 11 it is provided with in described valve body 2，It is provided with shaping piece 14 in described upper chamber 20，Described shaping piece 14 be connected below floating core bar 12，The upper end of described floating core bar 12 is be slidably matched through shaping piece 14 and with described shaping piece 14，Described shaping piece 14 be provided above being fixed on the permanent magnet 15 of floating core bar 12 upper end，On described floating core bar 12 and be positioned at the closed-loop 9 being arranged below for blocking described valve port 8 of described shaping piece 14，In described valve body 2 and be positioned at the outside of valve port 8 and offer cannelure，The sealing ring 5 for matching to block described valve port 8 with described closed-loop 9 it is provided with in described cannelure，In described upper chamber 20 and be positioned at described shaping piece 14 be provided above epithelium 19，Described epithelium 19 be connected above pull bar 16，The upper end of described pull bar 16 passes valve body 2，The lower end of described pull bar 16 is through epithelium 19 and coordinates with described permanent magnet 15 magnetic.In the present embodiment, it is preferred that way is, described stop valve 21 is ball valve.
In the present embodiment, this pipeline gas self-closing valve is by setting up the stop valve 21 for opening or closing described outlet side 11, facilitate when pipeline gas self-closing valve breaks down or other needs situation about closing, can this self-closing valve of quick closedown, and described stop valve 11 and valve body 2 are integrally formed formula structure, eliminate the trouble of assembling, improve sealing.
As it is shown in figure 1, be cased with spring 18 on described floating core bar 12, the upper end of described spring 18 is connected with shaping piece 14, and the lower end of described spring 18 is fixed on floating core bar 12.
In the present embodiment, this pipeline gas self-closing valve uses, when it is in original state, in described upper chamber 20 and lower chambers 6, pressure is zero, epithelium 19 and pull bar 16 in upper chamber 20 are descending under the magneticaction of permanent magnet 15, and closed-loop 9 matches thus being closed by valve port 8 with sealing ring 5, at this moment, upper chamber 20 and lower chambers 6 are mutually isolated, pass through without combustion gas in valve body 2.When normally using, the graduation mark on pull bar 16 to pull bar 16 is pulled to expose, now pull bar 16 drives floating core bar 12 up until being isolated sheet 14 to block up route together with closed-loop 9 under the magneticaction of permanent magnet 15, now valve port 8 is opened, spring 18 is in compressive state, pressure gas enters in valve body 2, and this state is normal operating conditions.When the input pressure of combustion gas is more than the upper limit of service pressure set, epithelium 19 is under the effect of the pressure by up, pull bar 16 is driven to depart from the magneticaction of permanent magnet 15, floating core bar 12 and closed-loop 9 are descending under the effect of gravity and spring 18, valve port 8 is closed, upper chamber 20 and lower chambers 6 are mutually isolated, pass through without combustion gas, be now high pressure closed state in valve body 2.When high pressure closed state; when without External Force Acting; closed-loop 9 and sealing ring 5 fit tightly thus being blocked by valve port 8; closed state will not change; will not the action with manifold pressure change, so that it is guaranteed that upper chamber 20 and lower chambers 6 are in isolation, when so can ensure in room nobody; will not by gas leakage, thus reach protection user safety purpose.After abnormality disappears, it is necessary to during normal operation, pull bar 16 can be returned to graduation mark and expose, proceed the operation of normal operation.When the present invention must have certain pressure to exist in pipeline, it is placed on normal operating conditions manually.When normal operating conditions, when gaseous-pressure is less than the operating pressure set, such as: stop the supple of gas or steam, gaseous-pressure is abnormal, the de-pipe of gas appliance, pipeline are damaged, by descending under epithelium 19 pressure effect, make pull bar 16, floating core bar 12, closed-loop 9 descending under the action of a magnetic field of permanent magnet 15, closed-loop 9 and sealing ring 5 fit tightly thus being blocked by valve port 8, upper chamber 20 and lower chambers 6 are isolated.It it is now low pressure closed mode.
As it is shown in figure 1, be provided with the guide cylinder 7 coordinating to guide described floating core bar 12 to move up and down with described floating core bar 12 lower slide in described lower chambers 6.On described epithelium 19 and be positioned at the arcuate structure 19-1 that the position inside its outer rim is concave downward.
As it is shown in figure 1, be provided with the first cylinder 4 for fixing described shaping piece 14 one end in described upper chamber 20 and for fixing the second cylinder 13 of described shaping piece 14 other end.
As it is shown in figure 1, the part that described pull bar 16 passes valve body 2 is provided with the handle 17 conveniently pulling described pull bar 16.
In the present embodiment, described pull bar 16 is fabricated from iron.Described floating core bar 12 is made of aluminum.Described floating core bar 12 is integrally formed formula structure with closed-loop 9.Described permanent magnet 15 adopts permanent-magnet alloy.
The above; it it is only presently preferred embodiments of the present invention; not the present invention is imposed any restrictions, every any simple modification, change and equivalent structure transformation above example made according to the technology of the present invention essence, all still fall within the protection domain of technical solution of the present invention.
Claims (10)
- null1. pipeline gas self-closing valve，It is characterized in that: include upper cover (1) and valve body (2)，Described valve body (2) is provided with inlet end (3) and outlet side (11)，Described valve body (2) is connected with the stop valve (21) for opening or closing described outlet side (11)，Upper chamber (20) and lower chambers (6) and the valve port (8) being used for connecting described upper chamber (20) and lower chambers (6) it is provided with in described valve body (2)，Described lower chambers (6) is connected with inlet end (3)，The passage (10) for connecting described upper chamber (20) and the port of export (11) it is provided with in described valve body (2)，Shaping piece (14) it is provided with in described upper chamber (20)，Described shaping piece (14) be connected below floating core bar (12)，The upper end of described floating core bar (12) is be slidably matched through shaping piece (14) and with described shaping piece (14)，Described shaping piece (14) be provided above being fixed on the permanent magnet (15) of floating core bar (12) upper end，Described floating core bar (12) is gone up and is positioned at the closed-loop (9) being arranged below for blocking described valve port (8) of described shaping piece (14)，In described valve body (2) and be positioned at the outside of valve port (8) and offer cannelure，The sealing ring (5) for matching to block described valve port (8) with described closed-loop (9) it is provided with in described cannelure，In described upper chamber (20) and be positioned at described shaping piece (14) be provided above epithelium (19)，Described epithelium (19) be connected above pull bar (16)，The upper end of described pull bar (16) passes valve body (2)，The lower end of described pull bar (16) is through epithelium (19) and coordinates with described permanent magnet (15) magnetic.
- 2. pipeline gas self-closing valve according to claim 1, it is characterised in that: described stop valve (21) is ball valve.
- 3. pipeline gas self-closing valve according to claim 1, it is characterized in that: described floating core bar (12) is cased with spring (18), the upper end of described spring (18) is connected with shaping piece (14), and the lower end of described spring (18) is fixed on floating core bar (12).
- 4. pipeline gas self-closing valve according to claim 1, it is characterised in that: described epithelium (19) is upper and is positioned at the arcuate structure (19-1) that the position inside its outer rim is concave downward.
- 5. pipeline gas self-closing valve according to claim 1, it is characterised in that: it is provided with the guide cylinder (7) coordinating to guide described floating core bar (12) to move up and down with described floating core bar (12) lower slide in described lower chambers (6).
- 6. pipeline gas self-closing valve according to claim 1, it is characterised in that: it is provided with the first cylinder (4) for fixing described shaping piece (14) one end in described upper chamber (20) and is used for fixing second cylinder (13) of described shaping piece (14) other end.
- 7. pipeline gas self-closing valve according to claim 1, it is characterised in that: described pull bar (16) passes the part of valve body (2) and is provided with the handle (17) conveniently pulling described pull bar (16).
- 8. pipeline gas self-closing valve according to claim 1, it is characterised in that: described pull bar (16) is fabricated from iron.
- 9. pipeline gas self-closing valve according to claim 1, it is characterised in that: described floating core bar (12) is made of aluminum.
- 10. pipeline gas self-closing valve according to claim 1, it is characterised in that: described floating core bar (12) is integrally formed formula structure with closed-loop (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410756294.0A CN105736775A (en) | 2014-12-10 | 2014-12-10 | Pipeline fuel gas safe self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410756294.0A CN105736775A (en) | 2014-12-10 | 2014-12-10 | Pipeline fuel gas safe self-closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105736775A true CN105736775A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410756294.0A Pending CN105736775A (en) | 2014-12-10 | 2014-12-10 | Pipeline fuel gas safe self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105736775A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448624A (en) * | 2017-08-25 | 2017-12-08 | 西安万泰燃气设备有限公司 | A kind of modified form pipe gas self-closing valve |
| CN107940049A (en) * | 2017-11-24 | 2018-04-20 | 海南广天恒科技发展有限公司 | Multifunctional pipe gas stabilized-pressure valve |
-
2014
- 2014-12-10 CN CN201410756294.0A patent/CN105736775A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448624A (en) * | 2017-08-25 | 2017-12-08 | 西安万泰燃气设备有限公司 | A kind of modified form pipe gas self-closing valve |
| CN107940049A (en) * | 2017-11-24 | 2018-04-20 | 海南广天恒科技发展有限公司 | Multifunctional pipe gas stabilized-pressure valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160706 |
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| WD01 | Invention patent application deemed withdrawn after publication |