CN208252858U - gas self-closing valve - Google Patents
gas self-closing valve Download PDFInfo
- Publication number
- CN208252858U CN208252858U CN201820699644.8U CN201820699644U CN208252858U CN 208252858 U CN208252858 U CN 208252858U CN 201820699644 U CN201820699644 U CN 201820699644U CN 208252858 U CN208252858 U CN 208252858U
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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.)
- Withdrawn - After Issue
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- 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
Abstract
The utility model 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 touching of the bottom magnetic suction on valve rod and with mounting cylinder, knob is socketed on the outer wall of mounting cylinder, valve stem end is fixedly 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 outer 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.The technical effect that structure is simple, small in size and safe and reliable is just realized in this way, to cancel ball valve use, is economized on resources and is improved installation effectiveness.
Description
Technical field
The utility model relates to a kind of valve of gas pipeline, and in particular to a kind of gas self-closing valve.
Background technique
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 layer 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 layer cavity, and the gas outlet of the valve body is connected to lower layer's cavity, the skin
The edge part of film passes through to be pressed against on the valve body on described, and the magnetic for being attracted epithelium is provided with around the valve port of the valve body
Iron, the epithelium inside are embedded with the first metal 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 layer cavity and be placed under lower layer's cavity
Sealing-plug, the upper sealing-plug and the lower sealing-plug are located at the two 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, fixes with the core bar lower end
Second metal plate of connection, the lower sealing-plug are fixedly connected on the upper surface of second metal plate, the core bar by up to
Under sequentially pass through the upper sealing-plug and the lower sealing-plug, the second metal sleeve-board on the guide and limit bar and can on
Lower slider is provided with the pre-compressed spring being resisted against on second metal plate on the inside of the lower cover.
Its working principle is that: when the gas pipeline damage connecting with gas outlet is revealed, it is in under-voltage condition.This is at present
The air pressure of layer cavity reduces, the bullet of the intracorporal air pressure of upper chamber and magnet to the sum of magnetic force of the first metal plate greater than pre-compressed spring
The sum of power and the air pressure of lower layer's cavity, 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 gas pressure and the elastic force of pre-compressed spring of middle layer cavity are greater than upper layer
Gas pressure in cavity, the intracorporal air pressure of upper chamber and magnet are less than the elastic force of pre-compressed spring to the sum of magnetic force of the first metal plate
The sum of with lower layer cavity air pressure, epithelium compression is moved upwards, and lower sealing-plug blocks valve port, and valve is closed at this time.
Structure is complicated for the pipe gas self-closing valve of above structure, in pressure abnormity, cannot fully automated closing valve, make
The danger of pipeline persistently exists, therefore in use, ball valve is also needed to configure 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.
Summary of the invention
To solve the above problems, the purpose of this utility model is to provide a kind of structures, simple, small in size and safety can
The gas self-closing valve leaned on.
To achieve the above object, the utility model provides following technical solution: a kind of gas self-closing valve, including valve body,
Upper cover, valve rod, diaphragm, upper sealing-plug and lower sealing-plug, the side of the valve body are inlet pipe connection, and the other side is outlet company
Adapter tube, is equipped with the valve chamber of cylindrical shape in the valve body, and the upper end of the valve chamber is equipped with valve port, the side of the inlet pipe connection
It is communicated with the side of the valve chamber, the valve chamber is communicated by valve port with the outlet connecting tube, the edge of the diaphragm
Portion is compressed by the upper cover, and sealing-plug and lower sealing-plug are equipped on the valve rod, and the valve port is arranged on described
Interval location between sealing-plug and lower sealing-plug, the upper cover upper end are equipped with cylindric and upward opening mounting cylinder,
The valve rod is passed through from the mounting cylinder, and magnet ring is equipped in the mounting cylinder, and the magnet ring is fixedly attached to described
Bottom magnetic suction touching on valve rod and with the mounting cylinder, is socketed with knob, the valve rod on the outer wall of the mounting cylinder
End is fixedly installed with end cap, and the first central axis hole corresponding with the end cap, the end cap are equipped on the knob
In cylindrical shape and it is movable be arranged in first central axis hole, the end cap outer peripheral surface configures elastic ring, the elasticity
Circle and 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 bullet by valve rod
Property circle leave the first central axis hole, the returning place force of elastic ring is greater than the sum of magnetic force and screen resilience of diaphragm of magnet ring.
Lockable mechanism is equipped between installation drum outer wall and the knob, the lockable mechanism includes 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 outer peripheral surface arc along the locked groove extended on the outer wall of the mounting cylinder, sets 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 greater 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 utility model, in normal barometric pressure, combustion gas overcomes the magnetic attraction of magnet ring and the elastic force of diaphragm
It pushes sealing-plug open and flows to outlet connecting tube from valve port, when under-voltage, magnet ring magnetic lives the bottom of mounting cylinder, and valve rod pushes at this time
Upper sealing-plug blocks valve port, and when superpressure, air pressure overcomes the friction of the first central axis hole on magnetic, diaphragm and elastic ring and knob
Power pushes valve rod to move upwards, until end cap and knob are detached from, so that the clogging valve port of lower sealing-plug, when not in use, on knob
Spacing block set fine jade into the locked groove on installation drum outer wall, end cap and fill in knob at this time, in use, spacing block set turns to
The vertical groove location of locked groove side, at this point, knob and can be up and down with valve rod, just realize in this way structure it is simple, it is small in size,
The technical effect that safe and reliable and included locking is closed economizes on resources to cancel ball valve use and improves installation effectiveness.
The utility model is further described with reference to the accompanying drawings and detailed description.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of specific embodiment of the present invention；
Fig. 2 is the enlarged drawing of A in Fig. 1；
Fig. 3 is the perspective view of upper cover in specific embodiment of the present invention；
Fig. 4 is the perspective view of knob in specific embodiment of the present invention.
Specific embodiment
The utility model is specifically described below by embodiment, is served only for carrying out the utility model further
Illustrate, should not be understood as the restriction to scope of protection of the utility model.
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
Film 4, upper sealing-plug 5 and lower sealing-plug 6, the side of valve body 1 are 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 the lower end of valve rod 3 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 touching on valve rod 3 and with mounting cylinder 21, knob 8,3 end of valve rod are socketed on the outer wall of mounting cylinder 21
Portion is fixedly 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 outer peripheral surface of end cap configuration elastic ring 10, in the elastic ring 10 and the first central axis hole 81
Wall friction contact, 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 81,10 elasticity of elastic ring struts so that outer diameter is greater than the internal diameter of the first central axis hole 81, the return of elastic ring 10 at this time
Power (i.e. elastic ring 10 be connected to the first central axis hole 81 frictional force) is greater than the sum of magnetic force and screen resilience of diaphragm 4 of magnet ring 7, peace
Lockable mechanism 15 is additionally provided 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 outer 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 greater than
The height of locked groove 211, locked groove 211 and vertical channel 212 are formed for the movable stop zone 213 of spacing block set 821.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 utility model, in normal barometric pressure, combustion gas overcomes the magnetic attraction of magnet ring 7 and the bullet of diaphragm 4
It pushes out 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,
Valve rod 3 pushes upper sealing-plug 5 to block valve port 131 at this time, and when superpressure, air pressure overcomes magnetic, diaphragm 4 and elastic ring 10 and knob
The frictional force of first central axis hole 81 on 8 pushes valve rod 3 to move upwards, until end cap 9 and knob 8 are detached from, so that lower sealing-plug 6
Clogging 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 made
Used time, 821 fine jade of spacing block set on knob 8 end cap 9 and fill in knob 8 at this time into the locked groove 211 on 21 outer wall of mounting cylinder
It is interior, 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 on valve rod 3
Lower activity just realizes the technical effect that structure is simple, small in size, safe and reliable and included locking is closed, to take in this way
The ball valve that disappears 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 pass through valve port with it is described
Outlet connecting tube communicate, the edge part of the diaphragm is compressed by the upper cover, is equipped with sealing-plug 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: 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 touches 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 fixedly installed with end cap, sets 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 outer 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 greater than
The sum of magnetic force and the screen resilience of diaphragm of magnet ring.
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 greater 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 |
|---|---|---|---|
| CN201820699644.8U CN208252858U (en) | 2018-05-11 | 2018-05-11 | gas self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820699644.8U CN208252858U (en) | 2018-05-11 | 2018-05-11 | gas self-closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208252858U true CN208252858U (en) | 2018-12-18 |
Family
ID=64635234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820699644.8U Withdrawn - After Issue CN208252858U (en) | 2018-05-11 | 2018-05-11 | gas self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208252858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518509A (en) * | 2018-05-11 | 2018-09-11 | 瑞安市佳安燃气具配套有限公司 | gas self-closing valve |
-
2018
- 2018-05-11 CN CN201820699644.8U patent/CN208252858U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518509A (en) * | 2018-05-11 | 2018-09-11 | 瑞安市佳安燃气具配套有限公司 | gas self-closing valve |
| CN108518509B (en) * | 2018-05-11 | 2023-08-08 | 浙江佳安燃气安全科技有限公司 | Gas self-closing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325200 Jinqiao Industrial Zone, Tao Zhen Town, Wenzhou, Zhejiang, Ruian Patentee after: Zhejiang Jiaan Gas Safety Technology Co.,Ltd. Address before: 325200 Jinqiao Industrial Zone, Tao Zhen Town, Wenzhou, Zhejiang, Ruian Patentee before: RUIAN JIA AN GAS STOVES CO.,LTD. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181218 Effective date of abandoning: 20230808 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181218 Effective date of abandoning: 20230808 |