CN204358111U - A kind of gas emergency cut-off valve - Google Patents
A kind of gas emergency cut-off valve Download PDFInfo
- Publication number
- CN204358111U CN204358111U CN201420695070.9U CN201420695070U CN204358111U CN 204358111 U CN204358111 U CN 204358111U CN 201420695070 U CN201420695070 U CN 201420695070U CN 204358111 U CN204358111 U CN 204358111U
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- China
- Prior art keywords
- valve
- cut
- opening structure
- rod
- emergency cut
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- Expired - Fee Related
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- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a kind of gas emergency cut-off valve, it comprises valve body, bottom flange, bonnet, housing, valve seat, the valve opening structure being arranged on valve inner and the actuator driving valve opening structure to open and close; Enclosure interior is provided with the trip gear be connected with valve opening structure; Trip gear comprises the box body being arranged on enclosure interior, is movably arranged on the cam in box body by shipping and reselling on another market, and is fixedly mounted on the chain of the large end of cam, and is fixedly mounted on the fixing rod of cam small end; Fixing rod is positioned at immediately below the iron core of actuator.When there is the urgencies such as gas leakage, cut off the electricity supply, the iron core return of actuator, valve opening structure is quick closedown cut-off valve under deadweight, rapid cut-out air-flow, improves the corresponding speed of cut-off valve and the precision of cut-off valve closedown, ensure that the Security with gas.
Description
Technical field
The utility model belongs to gas shut-off valve, is specifically related to a kind of gas emergency cut-off valve.
Background technique
Cut-off valve is the one of actuator in automatic system, is made up of many springs pneumatic diaphragn actuating mechanism or floating piston actuator and modulating valve, receives the signal of regulation meter, the cut-out of Controlling Technology fluids within pipes, connection or switching.What the open type gas emergency cut-off valve major part that current market is commonly used adopted is that actuator drives stem movement to realize the opening and closing of cut-off valve, the iron core of actuator with valve rod all needs several go out some cell bodies realize coordinating, to drive unlatching or the closedown of cut-off valve, after work a period of time, all can there are wearing and tearing in various degree in valve rod and iron core, and the action progress affected when cut-off valve opens and closes and corresponding speed, and the processing of valve rod also unusual inconvenience.
Model utility content
For above-mentioned deficiency of the prior art, the utility model provides a kind of gas emergency cut-off valve, can realize the opening and closing of cut-off valve by actuator and cooperatively interacting of trip gear, improves the closed operation precision of cut-off valve and speed of response.
In order to reach foregoing invention object, the technological scheme that the utility model gas emergency cut-off valve adopts is:
Comprise valve body, bottom flange, bonnet, housing, valve seat, the valve opening structure being arranged on valve inner and the actuator driving valve opening structure to open and close; Enclosure interior is provided with the trip gear be connected with valve opening structure;
Trip gear comprises the box body being arranged on enclosure interior, is movably arranged on the cam in box body by shipping and reselling on another market, and is fixedly mounted on the chain of the large end of cam, and is fixedly mounted on the fixing rod of cam small end; Fixing rod is positioned at immediately below the iron core of actuator.
The beneficial effects of the utility model are: when gas pipeline normally works, and after actuator's energising, its iron core, to the downward power of fixing rod one, is moved upward by the large end of cam, drive valve opening structure to move upward, and when realizing energising, cut-off valve often leaves; When there is the urgencies such as gas leakage, cut off the electricity supply, the iron core return of actuator, valve opening structure is quick closedown cut-off valve under deadweight, rapid cut-out air-flow, improves the corresponding speed of cut-off valve and the precision of cut-off valve closedown, ensure that the Security with gas.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model gas emergency cut-off valve.
Fig. 2 is the structure for amplifying schematic diagram of the sectional view of actuator.
Wherein, 1, housing; 2, actuator; 3, trip gear; 31, cam; 32, box body; 33, fixing rod; 34, chain; 35, ship and resell on another market; 4, bonnet; 5, valve rod casting die; 6, valve rod; 7, spring; 8, valve core of main valve; 9, casting die; 10, valve seat; 11, guide pad; 12, valve body; 13, bottom flange.
Embodiment
Below embodiment of the present utility model is described; so that those skilled in the art understand the utility model; but should be clear; the utility model is not limited to the scope of embodiment; to those skilled in the art; as long as various change to limit and in the spirit and scope of the present utility model determined, these changes are apparent, and all innovation and creation utilizing the utility model to conceive are all at the row of protection in appended claim.
The structural representation of the utility model gas emergency cut-off valve is shown with reference to figure 1, Fig. 1.As shown in Figure 1, the technological scheme that this enforcement adopts is: comprise valve body 12, be mounted by means of screws with bonnet 4 at the upper surface of valve body 12, be mounted by means of screws with bottom flange 13 at the lower surface of valve body 12, be installed with valve seat 10 at the middle part of valve body 12.The valve seat 10 of valve body 12 inside is provided with valve opening structure; The top of bonnet 4 is provided with a housing 1, housing 1 is provided with the actuator's (as shown in Figure 2) 2 driving valve opening structure to open and close.
The trip gear 3 be connected with valve opening structure is installed in housing 1 inside; Trip gear 3 comprises the box body 32 being arranged on housing 1 inside, 35 is movably arranged on cam 31 in box body 32 by shipping and reselling on another market, be fixedly mounted on cam 31 greatly end chain 34 and be fixedly mounted on the fixing rod 33 of cam 31 small end.Wherein, fixing rod 33 is positioned at immediately below the iron core of actuator 2.
This cut-off valve is the valve that valve is closed in power-off, after actuator 2 is energized, by the iron core of actuator 2 to the downward power of fixing rod 33 1, make cam 31 greatly end move upward, being moved upward by chain 34 drives valve opening structure to move upward, and when realizing being energized, cut-off valve often leaves.Be in an emergency down, after actuator 2 power-off, realized the closed of cut-off valve by the gravity sharp downward movement of valve opening structure self, closed corresponding speed is fast.
In an embodiment of the present utility model, one can be installed make valve opening structure close at spring 7 on valve seat 10 between the internal surface of bonnet 4 and valve core of main valve 8.When cut-off valve is in opening state, spring 7 is herein in compressive state and cut-off valve closes rear spring 7 is in nature elongation state completely not yet.When cut-off valve closes, quick closedown under elastic force effect when valve opening structure can recover deformation by himself gravity and spring 7, makes the precision of pass valve events and speed of response be greatly enhanced; After cut-off valve is closed, the power that spring 7 still can give valve core of main valve 8 one downward, thus improve the sealed precision of cut-off valve.
In an embodiment of the present utility model, valve opening structure preferably can comprise valve seat 10, casting die 9, valve core of main valve 8 and valve rod 6; The upper end of valve rod 6 is fixed together through bonnet 4 and chain 34, and its lower end is arranged on valve core of main valve 8; The lower surface of valve core of main valve 8 is provided with the casting die 9 contacted with the valve seat 10 that valve body 12 is installed.The component structural of the valve opening structure of this structure is relatively simple, is convenient to processing, and also relatively simple in cut-off valve assembling process operation.
In an embodiment of the present utility model, valve core of main valve 8 and casting die 9 all offer a mounting groove, at mounting groove internal fixtion, one guide pad 11 is installed.When cut-off valve closes, the lower surface of preferred guide pad 11, like this can when cut-off valve be opened lower than the lower surface of valve seat 10, and still some is positioned at valve seat 10 to guide pad 11, like this to guarantee that valve opening structure is fastened on valve seat 10 exactly, improve the sealing of cut-off valve.
In an emergency situation, move downward along bonnet 4 fast for the ease of valve rod 6, make valve opening structure promptly be fastened on valve seat 10, the diameter of valve rod 6 is arranged to be less than the diameter upper bonnet 4 being used for the through hole that valve rod 6 passes.
Valve rod 6 upper end is provided with a boss, and the diameter of its boss is less than the diameter of boss lower end valve rod, is provided with the valve rod casting die 5 passed valve rod upper end (boss) at the upper surface of bonnet 4.After such setting, after the boss of valve rod 6 moves to herein, valve rod 6 can be stoped to continue to move upward, spring 7 can be avoided to be out of shape by transition pressurized and valve core of main valve 5 occurs hard collision with bonnet 4 and damages.
Although describe in detail embodiment of the present utility model by reference to the accompanying drawings, should not be construed as the restriction of the protection domain to this patent.In the scope described by claims, the various amendment that those skilled in the art can make without creative work and distortion still belong to the protection domain of this patent.
Claims (6)
1. a gas emergency cut-off valve, comprises valve body, bottom flange, bonnet, housing, valve seat, the valve opening structure being arranged on valve inner and the actuator driving valve opening structure to open and close; It is characterized in that: described enclosure interior is provided with the trip gear be connected with valve opening structure;
Described trip gear comprises the box body being arranged on enclosure interior, is movably arranged on the cam in box body by shipping and reselling on another market, and is fixedly mounted on the chain of the large end of described cam, and is fixedly mounted on the fixing rod of described cam small end; Described fixing rod is positioned at immediately below the iron core of described actuator.
2. gas emergency cut-off valve according to claim 1, is characterized in that: described valve opening structure comprises valve seat, casting die, valve core of main valve and valve rod; The upper end of described valve rod is fixed together through described bonnet and described chain, and its lower end is arranged on described valve core of main valve; The lower surface of described valve core of main valve is provided with the casting die contacted with the valve seat that described valve body is installed.
3. gas emergency cut-off valve according to claim 2, is characterized in that: described valve core of main valve and described casting die all offer a mounting groove, is provided with a guide pad at described mounting groove internal fixtion.
4. gas emergency cut-off valve according to claim 2, is characterized in that: be provided with one between the internal surface of described bonnet and described valve core of main valve and close at spring on described valve seat for described opening structure.
5. according to the arbitrary described gas emergency cut-off valve of claim 1-4, it is characterized in that: the diameter of described valve rod is less than the diameter of the through hole that described bonnet passes for valve rod.
6. gas emergency cut-off valve according to claim 5, is characterized in that: the upper surface of described bonnet is provided with the valve rod casting die passed valve rod upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695070.9U CN204358111U (en) | 2014-11-19 | 2014-11-19 | A kind of gas emergency cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695070.9U CN204358111U (en) | 2014-11-19 | 2014-11-19 | A kind of gas emergency cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204358111U true CN204358111U (en) | 2015-05-27 |
Family
ID=53259582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420695070.9U Expired - Fee Related CN204358111U (en) | 2014-11-19 | 2014-11-19 | A kind of gas emergency cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204358111U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135022A (en) * | 2015-09-09 | 2015-12-09 | 江苏英瑞环保科技有限公司 | High-temperature flue gas shut-off valve |
| CN105508708A (en) * | 2016-01-25 | 2016-04-20 | 苏州巨瀚阀门有限公司 | Quick-acting valve |
| CN106122575A (en) * | 2016-07-04 | 2016-11-16 | 河北秦汉电子科技有限公司 | A kind of mechanical electric magnetic-type gas emergency cut-off valve |
| CN107504235A (en) * | 2017-09-07 | 2017-12-22 | 中石化川气东送天然气管道有限公司 | A kind of locker and Gas Stations pressure regulation safety shut-off valves |
| CN109163111A (en) * | 2018-09-19 | 2019-01-08 | 浙江中德自控科技股份有限公司 | A kind of willing fire-type emergency cut-off ball valve |
| CN111379894A (en) * | 2020-04-21 | 2020-07-07 | 浙江中孚流体机械有限公司 | High-temperature steam electromagnetic valve for waste incineration |
| CN112066015A (en) * | 2020-09-25 | 2020-12-11 | 杨新超 | High-pressure stop valve convenient to open and close |
| CN114484301A (en) * | 2022-02-09 | 2022-05-13 | 武汉鼎业环保工程技术有限公司 | Gas detection and leakage stoppage device and method |
-
2014
- 2014-11-19 CN CN201420695070.9U patent/CN204358111U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135022A (en) * | 2015-09-09 | 2015-12-09 | 江苏英瑞环保科技有限公司 | High-temperature flue gas shut-off valve |
| CN105508708A (en) * | 2016-01-25 | 2016-04-20 | 苏州巨瀚阀门有限公司 | Quick-acting valve |
| CN106122575A (en) * | 2016-07-04 | 2016-11-16 | 河北秦汉电子科技有限公司 | A kind of mechanical electric magnetic-type gas emergency cut-off valve |
| CN106122575B (en) * | 2016-07-04 | 2021-03-19 | 河北秦汉电子科技有限公司 | Mechanical electromagnetic type gas emergency cut-off valve |
| CN107504235A (en) * | 2017-09-07 | 2017-12-22 | 中石化川气东送天然气管道有限公司 | A kind of locker and Gas Stations pressure regulation safety shut-off valves |
| CN109163111A (en) * | 2018-09-19 | 2019-01-08 | 浙江中德自控科技股份有限公司 | A kind of willing fire-type emergency cut-off ball valve |
| CN111379894A (en) * | 2020-04-21 | 2020-07-07 | 浙江中孚流体机械有限公司 | High-temperature steam electromagnetic valve for waste incineration |
| CN112066015A (en) * | 2020-09-25 | 2020-12-11 | 杨新超 | High-pressure stop valve convenient to open and close |
| CN114484301A (en) * | 2022-02-09 | 2022-05-13 | 武汉鼎业环保工程技术有限公司 | Gas detection and leakage stoppage device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20151119 |
|
| EXPY | Termination of patent right or utility model |