CN2632421Y - Flow-control safety structure of gas valve - Google Patents
Flow-control safety structure of gas valve Download PDFInfo
- Publication number
- CN2632421Y CN2632421Y CN 03267558 CN03267558U CN2632421Y CN 2632421 Y CN2632421 Y CN 2632421Y CN 03267558 CN03267558 CN 03267558 CN 03267558 U CN03267558 U CN 03267558U CN 2632421 Y CN2632421 Y CN 2632421Y
- Authority
- CN
- China
- Prior art keywords
- gas
- central
- cylindrical shell
- sleeve
- plug
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a fuel gas valve flow control safety mechanism which comprises a valve body, an inlet channel mounted in the valve body, an outlet channel and a conical cavity, in the conical cavity is provided with a cone valve core, on the cone valve core is provided with a guiding hole, in the inlet channel is provided with a canister body, a sleeve body, a replacement sleeve, a central plug and two replacement springs, the sleeve body and the canister body are connected together, the center of the canister body is shaped with a central canister, the sleeve body is shaped with a central ring, the central plug comprises a central pole and a plug body, both sides of the central pole pass through the central ring and the central canister separately, the canister body wall is provided with a gas throat, the first replacement spring is pushed in the radial direction muscle of the plug body and the canister body, the replacement sleeve is mounted in another end of the canister body, the replacement sleeve is shaped with a mandrel along the axis line through the radial direction muscle, one end of the mandrel extends into the conical cavity, another of the mandrel extends into the central pole, the second replacement spring is pushed between the radial direction muscle of the canister body and the radial direction muscle of the replacement sleeve. The structure of the utility model is simple, and the control is flexible and reliable.
Description
(1) technical field
The utility model relates to a kind of safeguard construction of gas valve, especially a kind of gas valve flow control safeguard construction.
(2) background technique
Existing gas valve only has the function of manual break-make combustion gas, leaks gas, can't close no safety protection function when flow is excessive automatically at combustion gas tool or pipeline.
(3) summary of the invention
The purpose of this utility model is to provide a kind of gas valve flow control safeguard construction that can close automatically when flow is excessive.
The purpose of this utility model is realized by following technological scheme.
A kind of gas valve flow control safeguard construction, comprise a valve body, be provided with a gas-entered passageway in the valve body, one outlet passageway and a conical cavity, be embedded with a taper valve core in the conical cavity, offer guide hole on the taper valve core with gas-entered passageway and outlet passageway conducting, it is characterized in that: be provided with a cylindrical shell in the gas-entered passageway, one body, one reseting sleeve, one central plug and two Returnning springs, the cylindrical shell plug is in gas-entered passageway and near conical cavity, body is positioned at the outer end of cylindrical shell and is connected together with barrel jacket, cylindrical shell central authorities are formed with central tube by radial rib, body outer end central authorities are formed with center ring by radial rib, central plug is made of newel and the cock body that is positioned at the newel stage casing, the newel two ends are slidably passed center ring and central tube respectively, cylinder inboard wall has a gas larynx, cock body inwardly slides with central plug and blocks the gas larynx, first Returnning spring is enclosed within on the newel and squeezes between the radial rib of cock body and cylindrical shell, the reseting sleeve slip be positioned at the cylindrical shell the other end, the reseting sleeve outer wall is provided with directional post, barrel wall is provided with directional post corresponding, axial guide groove, directional post is positioned at guide groove, reseting sleeve is formed with push rod along axis by radial rib, push rod one end stretches to conical cavity to enter guide hole or to offset with taper valve core, when push rod and taper valve core offset, the push rod the other end stretches to newel, extrapolated with the central plug that will block the gas larynx, second Returnning spring squeezes between the radial rib of the radial rib of cylindrical shell and reseting sleeve.
During normal air feed, gas valve is opened, and the guide hole of taper valve core is with gas-entered passageway and outlet passageway conducting.Be subjected to the elastic force effect of Returnning spring, the cock body of central plug is close to center ring away from the gas larynx, and push rod one end stretches into guide hole.Air-flow successively through the interval of the radial rib of body, the interval of the radial rib of the interval of the radial rib of gas larynx, cylindrical shell, reseting sleeve, enter outlet passageway through guide hole again, reach the purpose of normal air feed.When gas flow was excessive, air-flow strengthened the thrust of central plug, was setting flow, and the thrust of air-flow overcomes the elastic force of Returnning spring, and central plug is inwardly passed, and final cock body is blocked the gas larynx, and combustion gas can't enter guide hole and outlet passageway.And the inner side of cock body does not have air pressure, combustion gas with central plug tightly be pressed on gas larynx place.After this, the rotation conic spool is closed gas valve, and the outer wall of taper valve core is pushed push rod to newel, thereby the cock body of central plug is pushed away the gas larynx, and cock body both sides air pressure equates that central plug resets under the promotion of Returnning spring, so that following subnormal air feed.
The purpose of this utility model can also further realize by following technical measures.
For preventing gas leakage, be provided with seal ring between cylindrical shell and the gas-entered passageway.
The utility model is simple and reasonable, at the gas leakage of combustion gas tool or pipeline, automatic self-closing gas when flow is excessive, reaches the purpose of safety protection, and can automatically reset, and reaches the purpose of normal air feed again, the control flexibility and reliability, easy to operate automatically, very practical.
(4) description of drawings
Fig. 1 is the structural representation of the utility model at normal air feed state;
Fig. 2 is the structural representation of the utility model in the excessive automatic guard mode of flow;
Fig. 3 is the utility model structural representation in off position;
Fig. 4 is the structural representation of central plug 9;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the left view of body 7 among Fig. 1;
Fig. 7 is the right elevation of Fig. 1 middle cylinder body 6;
Fig. 8 is the right elevation of reseting sleeve 8 among Fig. 1.
(5) embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Consult shown in the accompanying drawing 1-8, a kind of gas valve flow control safeguard construction, comprise a valve body 1, be provided with a gas-entered passageway 2 in the valve body 1, one outlet passageway 3 and a conical cavity, be embedded with a taper valve core 4 in the conical cavity, offer guide hole 5 on the taper valve core 4 with gas-entered passageway 2 and outlet passageway 3 conductings, be provided with a cylindrical shell 6 in the gas-entered passageway 2, one body 7, one reseting sleeve 8, one central plug 9 and two Returnning springs 10, cylindrical shell 6 is filled in gas-entered passageway 2 and close conical cavity, body 7 is positioned at the outer end of cylindrical shell 6 and connects together with cylindrical shell 6, cylindrical shell 6 central authorities are formed with central tube 12 by radial rib 11, body 7 outer end central authorities are formed with center ring 14 by radial rib 13, central plug 9 is made of newel 15 and the cock body 16 that is positioned at newel 15 stage casings, newel 15 two ends are slidably passed center ring 14 and central tube 12 respectively, cylindrical shell 6 inwalls have a gas larynx 17, cock body 16 inwardly slides with central plug 9 and blocks gas larynx 17 (as Fig. 2), first Returnning spring 10 is enclosed within on the newel 15 and squeezes between the radial rib 11 of cock body 16 and cylindrical shell 6, reseting sleeve 8 slips be positioned at cylindrical shell 6 the other ends, reseting sleeve 8 outer walls are provided with directional post 18, cylindrical shell 6 walls are provided with directional post 18 corresponding, axial guide groove 19, directional post 18 is positioned at guide groove 19, reseting sleeve 8 is formed with push rod 21 along axis by radial rib 20, push rod 21 1 ends stretch to conical cavity with enter guide hole 5 (as Fig. 1) or with taper valve core 4 offset (as Fig. 3), when push rod 21 and taper valve core 4 offset, push rod 21 the other ends stretch to newel 15, extrapolated with the central plug 16 that will block gas larynx 17, second Returnning spring 10 squeezes between the radial rib 20 of the radial rib 11 of cylindrical shell 6 and reseting sleeve 8.Be provided with seal ring 22 between cylindrical shell 6 and the gas-entered passageway 2.
Claims (2)
1, a kind of gas valve flow control safeguard construction, comprise a valve body, be provided with a gas-entered passageway in the valve body, one outlet passageway and a conical cavity, be embedded with a taper valve core in the conical cavity, offer guide hole on the taper valve core with gas-entered passageway and outlet passageway conducting, it is characterized in that: be provided with a cylindrical shell in the gas-entered passageway, one body, one reseting sleeve, one central plug and two Returnning springs, the cylindrical shell plug is in gas-entered passageway and near conical cavity, body is positioned at the outer end of cylindrical shell and is connected together with barrel jacket, cylindrical shell central authorities are formed with central tube by radial rib, body outer end central authorities are formed with center ring by radial rib, central plug is made of newel and the cock body that is positioned at the newel stage casing, the newel two ends are slidably passed center ring and central tube respectively, cylinder inboard wall has a gas larynx, cock body inwardly slides with central plug and blocks the gas larynx, first Returnning spring is enclosed within on the newel and squeezes between the radial rib of cock body and cylindrical shell, the reseting sleeve slip be positioned at the cylindrical shell the other end, the reseting sleeve outer wall is provided with directional post, barrel wall is provided with directional post corresponding, axial guide groove, directional post is positioned at guide groove, reseting sleeve is formed with push rod along axis by radial rib, push rod one end stretches to conical cavity to enter guide hole or to offset with taper valve core, when push rod and taper valve core offset, the push rod the other end stretches to newel, extrapolated with the central plug that will block the gas larynx, second Returnning spring squeezes between the radial rib of the radial rib of cylindrical shell and reseting sleeve.
2, gas valve flow control safeguard construction according to claim 1 is characterized in that: be provided with seal ring between cylindrical shell and the gas-entered passageway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03267558 CN2632421Y (en) | 2003-07-10 | 2003-07-10 | Flow-control safety structure of gas valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03267558 CN2632421Y (en) | 2003-07-10 | 2003-07-10 | Flow-control safety structure of gas valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2632421Y true CN2632421Y (en) | 2004-08-11 |
Family
ID=34298873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03267558 Expired - Fee Related CN2632421Y (en) | 2003-07-10 | 2003-07-10 | Flow-control safety structure of gas valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2632421Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886712A (en) * | 2010-07-09 | 2010-11-17 | 宣文昊 | Gas valve capable of automatically opening and closing |
| CN111998110A (en) * | 2020-07-17 | 2020-11-27 | 成都飞机工业（集团）有限责任公司 | Compressed air over-speed automatic air-cut-off device |
-
2003
- 2003-07-10 CN CN 03267558 patent/CN2632421Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886712A (en) * | 2010-07-09 | 2010-11-17 | 宣文昊 | Gas valve capable of automatically opening and closing |
| CN101886712B (en) * | 2010-07-09 | 2013-04-17 | 宣沛言 | Gas valve capable of automatically opening and closing |
| CN111998110A (en) * | 2020-07-17 | 2020-11-27 | 成都飞机工业（集团）有限责任公司 | Compressed air over-speed automatic air-cut-off device |
| CN111998110B (en) * | 2020-07-17 | 2022-05-10 | 成都飞机工业（集团）有限责任公司 | Compressed air over-speed automatic air-cut-off device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |