CN108518509A - gas self-closing valve - Google Patents
gas self-closing valve Download PDFInfo
- Publication number
- CN108518509A CN108518509A CN201810447285.1A CN201810447285A CN108518509A CN 108518509 A CN108518509 A CN 108518509A CN 201810447285 A CN201810447285 A CN 201810447285A CN 108518509 A CN108518509 A CN 108518509A
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- CN
- China
- Prior art keywords
- valve
- plug
- sealing
- knob
- mounting cylinder
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a kind of gas self-closing valves, including valve body, upper cover, valve rod, diaphragm, upper sealing-plug and lower sealing-plug, valve chamber is equipped in valve body, the upper end of the valve chamber is equipped with valve port, the edge part of diaphragm is compressed by upper cover, sealing-plug and lower sealing-plug are installed on valve rod, the interval location between upper sealing-plug and lower sealing-plug is arranged in valve port, upper cover upper end is equipped with mounting cylinder, magnet ring is fixedly attached to the bottom magnetic suction on valve rod and with mounting cylinder and touches, it is socketed with knob on the outer wall of mounting cylinder, valve stem end is installed with end cap, the first central axis hole is equipped on knob, end cap is in cylindrical shape and movable setting is in the first central axis hole, end cap peripheral surface configures elastic ring, the elastic ring and the first central axis hole inner wall CONTACT WITH FRICTION, it installs and is equipped with lockable mechanism between drum outer wall and knob.Simple in structure, small and safe and reliable technique effect is just realized in this way, is used to cancel ball valve, is economized on resources and improve installation effectiveness.
Description
Technical field
The present invention relates to a kind of valve of gas pipeline, and in particular to a kind of gas self-closing valve.
Background technology
Pipe gas self-closing valve is installed on low-pressure fuel gas system pipeline, when there is under-voltage, superpressure in gas supply conduit pressure,
Device that simultaneously must be manually opened can be automatically closed in not electricity consumption or other external impetus.
The patent of 207145695 U of Chinese invention patent Authorization Notice No. CN discloses a kind of pipe gas self-closing valve,
Including valve body, upper cover, lower cover, core bar, epithelium, sealing-plug, upper layer cavity, the skin are constituted between the upper cover and the epithelium
Middle level cavity is constituted between film and the valve port of the valve body, and lower layer's cavity is constituted between the lower cover and the valve port of the valve body,
The air inlet of the valve body is connected to the middle level cavity, and the gas outlet of the valve body is connected to lower layer's cavity, the skin
The edge part of film is provided with the magnetic for being attracted epithelium by being pressed against on the valve body on described around the valve port of the valve body
Iron, the epithelium inside are embedded with the first metallic plate, and it is gentle that the upper cover is equipped with the air gauge being connected to the upper layer cavity
Mouth；There are two the sealing-plugs, and is respectively to be placed in the upper sealing-plug of the middle level cavity and be placed under lower layer's cavity
Sealing-plug, the upper sealing-plug and the lower sealing-plug are located at the both sides up and down of the valve port, and the upper sealing-plug is fixed
It is connected to the lower surface of the epithelium；Lower layer's cavity is provided with vertical guide and limit bar, is fixed with the core bar lower end
Second metallic plate of connection, the lower sealing-plug are fixedly connected on the upper surface of second metallic plate, the core bar by up to
Under sequentially pass through the upper sealing-plug and the lower sealing-plug, second metallic plate be sleeved on the guide and limit bar and can on
Lower slider is provided with the pre-compressed spring being resisted against on second metallic plate on the inside of the lower cover.
Its operation principle is：When the gas pipeline damage being connect with gas outlet is revealed, it is in under-voltage condition.This is at present
The air pressure of layer cavity reduces, and the sum of the air pressure in upper chamber body and the magnetic force of the first metallic plate of magnet pair are more than the bullet of pre-compressed spring
The sum of power and lower layer's cavity air pressure, epithelium compression move downward, and upper sealing-plug blocks valve port, and valve is closed at this time；Work as air inlet
The air pressure of mouth increases suddenly, is in superpressure state, and the sum of the gas pressure of middle level cavity and the elastic force of pre-compressed spring are more than upper layer
Gas pressure in cavity, the sum of air pressure in upper chamber body and the magnetic force of the first metallic plate of magnet pair are less than the elastic force of pre-compressed spring
The sum of with lower layer cavity air pressure, epithelium compression moves upwards, and lower sealing-plug blocks valve port, and valve is closed at this time.
The pipe gas self-closing valve of above structure is complicated, in pressure abnormity, cannot fully automated closing valve, make
The danger of pipeline persistently exists, therefore also need to configuration ball valve in use, on outlet pipe, not using usually or
When person's pressure abnormity, ball valve is turned off manually, avoids the occurrence of safety accident, thus brings volume big, use and installation are more
Cumbersome problem.
Invention content
To solve the above problems, the purpose of the present invention is to provide a kind of simple in structure, small and safe and reliable
Gas self-closing valve.
To achieve the above object, the present invention provides following technical solutions：A kind of gas self-closing valve, including valve body, upper cover,
The side of valve rod, diaphragm, upper sealing-plug and lower sealing-plug, the valve body is inlet pipe connection, and the other side is outlet connecting tube,
The valve chamber of cylindrical shape is equipped in the valve body, the upper end of the valve chamber is equipped with valve port, the side of the inlet pipe connection and institute
The side for stating valve chamber communicates, and the valve chamber is communicated by valve port with the outlet connecting tube, and the edge part of the diaphragm is logical
It crosses the upper cover to compress, sealing-plug and lower sealing-plug is installed on the valve rod, the valve port is arranged in the upper sealing
Interval location between plug and lower sealing-plug, the upper cover upper end is equipped with cylindric and upward opening mounting cylinder, described
Valve rod passed through from the mounting cylinder, magnet ring is equipped in the mounting cylinder, the magnet ring is fixedly attached to the valve rod
It is upper and tactile with the bottom magnetic suction of the mounting cylinder, knob, the valve stem end are socketed on the outer wall of the mounting cylinder
It is installed with end cap, the first central axis hole corresponding with the end cap is equipped on the knob, the end cap is in circle
Bar shape and it is movable be arranged in first central axis hole, the end cap peripheral surface configure elastic ring, the elastic ring with
The first central axis hole inner wall CONTACT WITH FRICTION, when the lower sealing-plug is in upper limit position, end cap ejection is made elastic ring by valve rod
The first central axis hole is left, the returning place force of elastic ring is more than the sum of the screen resilience of the magnetic force and diaphragm of magnet ring.
Lockable mechanism is equipped between installation drum outer wall and the knob, the lockable mechanism is included in described
Knob is equipped with the second central axis hole corresponding with the installation drum outer wall, and the second central axis hole inner wall is equipped with limit convex
Block is equipped with along mounting cylinder peripheral surface arc along the locked groove extended on the outer wall of the mounting cylinder, is set in the side of the locked groove
There is a vertical channel to connect with the locked groove, the height of the vertical channel is more than the height of the locked groove, the locked groove and described hangs down
Straight trough, which is formed, supplies the movable stop zone of the spacing block set.
The spacing block set is blocky in triangle.
This structure of the present invention, in normal barometric pressure, combustion gas overcomes the magnetic attraction of magnet ring and the elastic force of diaphragm to push open
Upper sealing-plug flows to outlet connecting tube from valve port, and when under-voltage, magnet ring magnetic lives the bottom of mounting cylinder, and valve rod pushes upper close at this time
Blocking blocks valve port, and when superpressure, air pressure overcomes magnetic, diaphragm and elastic ring to be pushed away with the frictional force of the first central axis hole on knob
Ovable valve stem moves upwards, until end cap is detached from knob so that the lower clogging valve port of sealing-plug, when not in use, the limit on knob
Position convex block fine jade end cap and is filled in knob, into the locked groove on installation drum outer wall in use, spacing block set turns to locked groove at this time
The vertical groove location of side, at this point, knob and can be up and down with valve rod, just realizes simple in structure, small, safe in this way
The technique effect that reliable and included locking is closed uses to cancel ball valve, economizes on resources and improve installation effectiveness.
The invention will be further described with reference to the accompanying drawings and detailed description.
Description of the drawings
Fig. 1 is the structural schematic diagram of the specific embodiment of the invention；
Fig. 2 is the enlarged drawing of A in Fig. 1；
Fig. 3 is the stereogram of upper cover in the specific embodiment of the invention；
Fig. 4 is the stereogram of knob in the specific embodiment of the invention.
Specific implementation mode
The present invention is specifically described below by embodiment, is served only for that invention is further explained, no
It can be interpreted as limiting the scope of the present invention.
As shown in Fig. 1-Fig. 4, present embodiment discloses a kind of gas self-closing valve, including valve body 1, upper cover 2, valve rod 3, every
The side of film 4, upper sealing-plug 5 and lower sealing-plug 6, valve body 1 is inlet pipe connection 11, and the other side is outlet connecting tube 12,
The valve chamber 13 of cylindrical shape is equipped in valve body 1, the upper end of the valve chamber 13 is equipped with valve port 131, the side of inlet pipe connection 11 and valve
The side of chamber 13 communicates, and valve chamber 13 is communicated by valve port 131 with outlet connecting tube 12, and the edge part of diaphragm 4 is pressed in by upper cover 2
On valve body 1, sealing-plug 5 and lower sealing-plug 6 be installed on valve rod 3, the setting of valve port 131 upper sealing-plug 5 and lower sealing-plug 6 it
Between interval location, lower sealing-plug 6 be mounted on valve rod 3 lower end and be arranged in valve chamber 13,2 upper end of upper cover be equipped with cylinder
The mounting cylinder 21 of shape and upward opening, valve rod 3 are passed through from the mounting cylinder 21, and magnet ring 7 is equipped in mounting cylinder 21, and magnet ring 7 is fixed
It is socketed in the bottom magnetic suction on valve rod 3 and with mounting cylinder 21 to touch, knob 8,3 end of valve rod is socketed on the outer wall of mounting cylinder 21
Portion is installed with end cap 9, on knob 8 be equipped with first central axis hole 81 corresponding with end cap 9, end cap 9 in cylindrical shape simultaneously
Movable setting is in the first central axis hole 81,9 peripheral surface of end cap configuration elastic ring 10, in the elastic ring 10 and the first central axis hole 81
Wall friction contacts, and when lower sealing-plug 6 be in upper limit position, the ejection disengaging knob 8 of end cap 9 is made elastic ring 10 leave the by valve rod 3
One central axis hole 81, at this time 10 elasticity of elastic ring strut so that outer diameter be more than the first central axis hole 81 internal diameter, the return of elastic ring 10
Power（I.e. elastic ring 10 is connected to the frictional force of the first central axis hole 81）More than the magnetic force of magnet ring 7 and the sum of the screen resilience of diaphragm 4, peace
It is additionally provided with lockable mechanism 15 between 21 outer wall of fitted tube and knob 8.
Lockable mechanism 15 includes that the second central axis hole 82 corresponding with 21 outer wall of mounting cylinder is equipped on knob 8, in second
82 inner wall of axis hole is equipped with spacing block set 821, is equipped on the outer wall of mounting cylinder 21 along 21 peripheral surface arc of mounting cylinder along extension
Locked groove 211, be equipped with the vertical channel 212 that connects with the locked groove 211 in the side of locked groove 211, the height of vertical channel 212 is more than
The height of locked groove 211, locked groove 211 and vertical channel 212 are formed for 821 movable stop zone 213 of spacing block set.Such design
When the valve body 1 can make 8 turn of knob when not in use, make 821 fine jade of spacing block set into locked groove 211, in this way but knob 8 cannot edge
Valve rod 3 move up and down, play the role of it is identical with ball valve, need in use, by knob 8 spacing block set 821 rotation to hang down
In straight trough 212, knob 8 is thus unlocked, knob 8 can be up and down along vertical channel 212.
Spacing block set 821 is blocky in triangle.Such setting but knob 8 it is more convenient be mounted on the outer of mounting cylinder 21
On wall, the convenience of installation is improved.
This structure of the present invention, in normal barometric pressure, combustion gas overcomes the magnetic attraction of magnet ring 7 and the elastic force of diaphragm 4 to push away
It opens sealing-plug 5 and flows to outlet connecting tube 12 from valve port 131, when under-voltage, 7 magnetic of magnet ring lives the bottom of mounting cylinder 21, at this time
Valve rod 3 pushes upper sealing-plug 5 to block valve port 131, when superpressure, air pressure overcome magnetic, diaphragm 4 and elastic ring 10 on knob 8
The frictional force of first central axis hole 81 pushes valve rod 3 to move upwards, until end cap 9 is detached from knob 8 so that lower sealing-plug 6 blocks
Firmly valve port 131, valve are closed, and safety effect is played, and end cap 9 is pressed into knob 8 manually after danger excludes, is not used
When, 821 fine jade of spacing block set on knob 8 end cap 9 and is filled in knob 8 at this time into the locked groove 211 on 21 outer wall of mounting cylinder,
In use, spacing block set 821 turns to 212 position of vertical channel of 211 side of locked groove, at this point, knob 8 and can be with about 3 valve rod
Activity just realizes the technique effect that simple in structure, small, safe and reliable and included locking is closed, to cancel in this way
Ball valve uses, and economizes on resources and improves installation effectiveness.
Claims (3)
1. a kind of gas self-closing valve, including valve body, upper cover, valve rod, diaphragm, upper sealing-plug and lower sealing-plug, the valve body
Side is inlet pipe connection, and the other side is outlet connecting tube, is equipped with the valve chamber of cylindrical shape in the valve body, the valve chamber it is upper
End is equipped with valve port, and the side of the inlet pipe connection communicates with the side of the valve chamber, the valve chamber by valve port with it is described
Outlet connecting tube communicate, the edge part of the diaphragm is compressed by the upper cover, and sealing-plug is equipped on the valve rod
With lower sealing-plug, the interval location between the upper sealing-plug and lower sealing-plug is arranged in the valve port, it is characterised in that：It is described
Upper cover upper end be equipped with cylindric and upward opening mounting cylinder, the valve rod is passed through from the mounting cylinder, the peace
Magnet ring is equipped in fitted tube, the magnet ring is fixedly attached on the valve rod and is touched with the bottom magnetic suction of the mounting cylinder,
Knob is socketed on the outer wall of the mounting cylinder, the valve stem end is installed with end cap, is set on the knob
There is the first central axis hole corresponding with the end cap, the end cap is in cylindrical shape and movable is arranged in described first
In axis hole, the end cap peripheral surface configures elastic ring, the elastic ring and the first central axis hole inner wall CONTACT WITH FRICTION, under described
When sealing-plug is in upper limit position, end cap ejection is made elastic ring leave the first central axis hole by valve rod, and the returning place force of elastic ring is more than
The sum of the magnetic force of magnet ring and the screen resilience of diaphragm.
2. gas self-closing valve according to claim 1, it is characterised in that：Between installation drum outer wall and the knob
Equipped with lockable mechanism, the lockable mechanism includes being equipped with and the installation drum outer wall corresponding second on the knob
Central axis hole, the second central axis hole inner wall are equipped with spacing block set, are equipped with outside mounting cylinder on the outer wall of the mounting cylinder
Circumferential surface arc is equipped with the vertical channel to connect with the locked groove in the side of the locked groove along the locked groove extended, the vertical channel
Height is more than the height of the locked groove, and the locked groove and the vertical channel, which are formed, supplies the movable stop zone of the spacing block set.
3. gas self-closing valve according to claim 2, it is characterised in that：The spacing block set is blocky in triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810447285.1A CN108518509B (en) | 2018-05-11 | 2018-05-11 | Gas self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810447285.1A CN108518509B (en) | 2018-05-11 | 2018-05-11 | Gas self-closing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108518509A true CN108518509A (en) | 2018-09-11 |
| CN108518509B CN108518509B (en) | 2023-08-08 |
Family
ID=63430502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810447285.1A Active CN108518509B (en) | 2018-05-11 | 2018-05-11 | Gas self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108518509B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283427A (en) * | 2020-10-30 | 2021-01-29 | 浙江理工大学 | Gas self-closing valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1270744A (en) * | 1969-03-03 | 1972-04-12 | Gurtner Sa | Improvements in and relating to pressure-reducing valves |
| CN101225899A (en) * | 2008-02-22 | 2008-07-23 | 刘波 | Multifunctional self-closing valve |
| CN201180833Y (en) * | 2008-02-19 | 2009-01-14 | 刘波 | Self-closing valve |
| CN205226500U (en) * | 2015-11-10 | 2016-05-11 | 乐山山鹰燃气输配控制技术有限公司 | Built -in sphericity fire atmospheric pressure difference self -closing valve |
| CN206478260U (en) * | 2017-02-16 | 2017-09-08 | 常景泓 | A kind of gas self-closing safety valve |
| CN207145695U (en) * | 2017-07-21 | 2018-03-27 | 四川维尔法交通科技有限公司 | Pipe gas self-closing valve |
| CN208252858U (en) * | 2018-05-11 | 2018-12-18 | 瑞安市佳安燃气具配套有限公司 | gas self-closing valve |
-
2018
- 2018-05-11 CN CN201810447285.1A patent/CN108518509B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1270744A (en) * | 1969-03-03 | 1972-04-12 | Gurtner Sa | Improvements in and relating to pressure-reducing valves |
| CN201180833Y (en) * | 2008-02-19 | 2009-01-14 | 刘波 | Self-closing valve |
| CN101225899A (en) * | 2008-02-22 | 2008-07-23 | 刘波 | Multifunctional self-closing valve |
| CN205226500U (en) * | 2015-11-10 | 2016-05-11 | 乐山山鹰燃气输配控制技术有限公司 | Built -in sphericity fire atmospheric pressure difference self -closing valve |
| CN206478260U (en) * | 2017-02-16 | 2017-09-08 | 常景泓 | A kind of gas self-closing safety valve |
| CN207145695U (en) * | 2017-07-21 | 2018-03-27 | 四川维尔法交通科技有限公司 | Pipe gas self-closing valve |
| CN208252858U (en) * | 2018-05-11 | 2018-12-18 | 瑞安市佳安燃气具配套有限公司 | gas self-closing valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283427A (en) * | 2020-10-30 | 2021-01-29 | 浙江理工大学 | Gas self-closing valve |
| CN112283427B (en) * | 2020-10-30 | 2022-06-17 | 浙江理工大学 | Gas self-closing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108518509B (en) | 2023-08-08 |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 325200 Jinqiao Industrial Zone, Tao Zhen Town, Wenzhou, Zhejiang, Ruian Applicant after: Zhejiang Jiaan Gas Safety Technology Co.,Ltd. Address before: 325200 Jinqiao Industrial Zone, Tao Zhen Town, Wenzhou, Zhejiang, Ruian Applicant before: RUIAN JIA AN GAS STOVES CO.,LTD. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |