CN103104731A - Gas switching valve with earthquake gas valve function - Google Patents
Gas switching valve with earthquake gas valve function Download PDFInfo
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- CN103104731A CN103104731A CN2013100267906A CN201310026790A CN103104731A CN 103104731 A CN103104731 A CN 103104731A CN 2013100267906 A CN2013100267906 A CN 2013100267906A CN 201310026790 A CN201310026790 A CN 201310026790A CN 103104731 A CN103104731 A CN 103104731A
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- valve
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Abstract
The invention discloses a gas switching valve with an earthquake gas valve function. The gas switching valve with the earthquake gas valve function comprises a valve body, a valve shaft, a handle fixedly connected with the valve shaft and a closed spring which is arranged between the handle and the valve body and is capable of enabling the handle to rotate towards the closed direction, and further comprises a braking element, wherein one end of the braking element is hinged on the valve body, a free end of the braking element is contacted with the outer surface of the handle, friction torque of a contact position is larger than elasticity torque of the closed spring, and the free rotation direction of the braking element is opposite to the closed direction of the handle. The gas switching valve with the earthquake gas valve function has the advantages that the structure is simple, operation is convenient, the earthquake gas valve function is enabled to be achieved conveniently, cost is low, the gas valve is kept in a closed state when an earthquake happens, safety is high, and resetting is easy to achieve.
Description
Technical field
The present invention relates to a kind of gas switch valve, especially relate to the gas switch valve with earthquake gas valve function.
Background technique
Gas switch valve can be realized UNICOM and the shutoff of blast tube, is widely used in gas works.For example, before the domestic gas wares such as family expenses gas cooker, water heater, gas meter, all gas switch valve must be installed.When using combustion gas, need open gas valve; In the installation, maintenance of carrying out gas range, when changing operation, need to close gas switch valve.
Existing domestic gas switch valve uses small ball valve more, only possesses manually opened and the manual-lock function, does not possess the function that automatically shuts down when earthquake.When fairly large earthquake occurs when, if gas switch valve can not autoshutdown, may cause gas leakage, there are initiation fire, blast or poisoning risk.Gas burning system is destroyed in order to reduce because of earthquake, gas leakage occurs and causes the risk of fire, the secondary disaster such as poisoning, is necessary to install additional the earthquake gas valve in gas burning system.
Be provided with special earthquake sensing device in the common gas switch valve with earthquake gas valve function, when experiencing the intensity of earthquake of setting, drive special valve mechanism and close fuel gas pipeline, the effect of automatic-closing valve when realizing earthquake has reduced the risk that gas leakage causes.Be provided with special-purpose valve mechanism, resetting-mechanism in these earthquake sensing devices, need to be arranged on specific mounting point, taken indoor space, for guaranteeing to move when the earthquake, to installing and using, special requirement is arranged, thereby increased the system complexity of gas switch valve, cost also rises a lot, have inconvenience during normal the use, also there is hidden danger in safety reliability.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, safe and reliable gas switch valve with earthquake gas valve function.
Technical solution of the present invention is: a kind of gas switch valve with earthquake gas valve function, comprise valve body, valve shaft, and the handle that connects firmly of valve shaft, be arranged between handle and valve body and make handle towards the spring of closing of closing direction rotation, it comprises that also an end is hinged on the braking member on described valve body, the free end of this braking member contacts with the outer surface of described handle, and the friction torque of contact position is greater than described elastic force moment of closing spring, this braking member to rotate freely direction opposite with the closing direction of described handle.
one end of braking member is hinged on valve body, it is opposite with the closing direction of handle that it rotates freely direction, and the friction torque of its free end and handle outer surface is greater than the elastic force moment of closing spring, when free end contact handle outer surface, can overcome and close the running torque that spring brings, play the effect of brake handle, for example handle is under the elastic force effect of closing spring, keep clockwise rotating the trend of closing, braking member is under the effect of self gravitation, its free end keeps counterclockwise sense of rotation take articulating point as axle, friction torque is greater than elastic force moment, handle is braked, the aperture that the valve maintenance needs, when the needs throttle down, with external force, free end is turned clockwise, frictional force disappears, the braking of handle is disengaged, under the elastic force effect, the handle autoshutdown, when earthquake occurs, free end swings with vibrations, when inertial force is increased to certain value, free end leaves handle surfaces, and frictional force disappears, and handle is under the elastic force effect of closing spring, autoshutdown puts in place, close under the External Force Acting of spring force not having other to overcome, handle is maintained in its closed position, thus the earthquake gas valve effect of autoshutdown when realizing earthquake.
Be provided with handle on the free end of described braking member.Be used for the pull-up free end, brake off realizes that the handle automatic rotation closes.
Be provided with edge and the extension part that described free end opposite direction extends on described braking member, be provided with button on extension part.Press the button, can make the free end counterrotating, thus brake off.
Advantage of the present invention is: simple in structure, easy to operate, conveniently realize earthquake gas valve function, and cost is lower, and during earthquake, gas valve keeps being closed state, and is safe, resets easily.
Description of drawings
Accompanying drawing 1 is the structural representation of the embodiment of the present invention 1;
Accompanying drawing 2 is the structural representation of the embodiment of the present invention 1 when brake off;
Accompanying drawing 3 is the structural representation of the embodiment of the present invention 2;
1, valve body, 2, valve shaft, 3, handle, 4, close spring, 5, braking member, 6, free end, 7, articulating point, 8, extension part, 9, button, 10, handle.
Embodiment
Embodiment 1:
Consult Fig. 1, a kind of gas switch valve with earthquake gas valve function, comprise valve body 1, valve shaft 2, and the handle 3 that connects firmly of valve shaft 2, be arranged between handle 3 and valve body 1 and make handle 3 be hinged on braking member 5 on valve body 1 towards close spring 4 and an end of closing direction rotation, the free end 6 of this braking member 5 contacts with the outer surface of handle 3, and the friction torque of contact position is greater than the elastic force moment of closing spring 4, this braking member 5 to rotate freely direction opposite with the closing direction of handle 3.Be provided with edge and the extension part 8 that free end 6 opposite directions extend on braking member 5, be provided with button 9 on extension part 8.
In the present embodiment, handle 3 is fixedly connected on valve shaft 2, and when handle 3 rotated, valve shaft 2 also can rotate, thereby realizes the switching of valve, therefore was applicable on the gas valves such as ball valve, gate valve.Closing spring 4 and be arranged between valve body 1 and handle 3, can be wind spring or shell fragment, and in the present embodiment, under the elastic force effect of closing spring 4, handle 3 has the trend that turns clockwise and close all the time.Braking member 5 itself has constant weight, and the one end is hinged on valve body 1, and free end 6 under the self gravitation effect, keeps the state that is rotated counterclockwise around articulating point 7 like this.When free end 6 contacted with handle 3 outer surfaces, the friction torque of contact position can realize the braking to handle 3 greater than the elastic force moment of closing spring 4, made it keep fixing aperture.
Consult Fig. 1, when valve opening or increase valve opening, can pull counterclockwise handle 3, overcome and close spring 4 elastic force, handle 3 surfaces make free end 6 swing clockwise take articulating point 7 as axle to the frictional force of the free end 6 of braking member 5, can not form braking to handle 3, handle 3 can turn on any desired location, when stopping pulling handle 3, handle 3 rotates towards closing direction under the elastic force effect of closing spring 4 clockwise, frictional force to free end 6 makes free end 6 counter-clockwise swings, thereby extrusion handle 3 surfaces form braking.So loose one's grip when valve reaches the setting aperture, handle 3 is braked the location after revolution slightly.The maximum opening of valve is by corresponding part restriction on valve body.
During earthquake, free end 6 can swing because vibrations produce, reciprocal inertia force can make its pressure to handle 3 surfaces change, loosen discontinuously the braking to handle 3, handle 3 progressively rotates to closing direction under the effect of closing spring 4, until final plant closure, this moment, handle 3 can remain closed condition, can not be subjected to the impact of braking member 5.
Consult Fig. 2, when usually using, by the button 9 on lower extension 8, free end 6 clockwise rotates take articulating point 7 as axle, loosens the braking to handle 3 for a long time, and handle 3 rotates towards closing direction under the effect of closing spring 4, until till Close All.Loose one's grip if dub the rear horse back of button 9, free end 6 is interrupted the braking of loosening handle 3, and handle 3 is braked after closing direction rotates to an angle, and is positioned at less aperture position.
Can be on the appropriate location of braking member 5, but the electromagnet equal controller of actuation button 9 motions is set, adopt electrical signal to control throttle down, be used for receiving automatic-closing valve after the electrical signal such as fire, gas leakage.
Embodiment 2:
Consult Fig. 3, the gas switch valve that has earthquake gas valve function for another kind, comprise valve body 1, valve shaft 2, and the handle 3 that connects firmly of valve shaft 2, be arranged between handle 3 and valve body 1 and make handle 3 be hinged on braking member 5 on valve body 1 towards close spring 4 and an end of closing direction rotation, the free end 6 of this braking member 5 contacts with the outer surface of handle 3, and the friction torque of contact position is greater than the moment of elasticity of closing spring 4, this braking member 5 to rotate freely direction opposite with the closing direction of handle 3.Be provided with handle 10 on free end 6.By pulling handle 10, make free end 6 leave handle 3 surfaces, brake off.The other technologies feature is identical with embodiment 1, does not repeat them here.
Above-listed detailed description is that this embodiment limits the scope of the claims of the present invention for the illustrating of possible embodiments of the present invention, and the equivalence that all the present invention of disengaging do is implemented or change, all should be contained in the scope of the claims of this case.
Claims (3)
1. gas switch valve with earthquake gas valve function, comprise valve body, valve shaft, and the handle that connects firmly of valve shaft, be arranged between handle and valve body and make handle towards the spring of closing of closing direction rotation, it is characterized in that: it comprises that also an end is hinged on the braking member on described valve body, the free end of this braking member contacts with the outer surface of described handle, and the friction torque of contact position is greater than described elastic force moment of closing spring, this braking member to rotate freely direction opposite with the closing direction of described handle.
2. a kind of gas switch valve with earthquake gas valve function according to claim 1, is characterized in that: be provided with handle on the free end of described braking member.
3. a kind of gas switch valve with earthquake gas valve function according to claim 1 and 2, is characterized in that: be provided with edge and the extension part that described free end opposite direction extends on described braking member, be provided with button on extension part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100267906A CN103104731A (en) | 2013-01-18 | 2013-01-18 | Gas switching valve with earthquake gas valve function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100267906A CN103104731A (en) | 2013-01-18 | 2013-01-18 | Gas switching valve with earthquake gas valve function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103104731A true CN103104731A (en) | 2013-05-15 |
Family
ID=48312820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100267906A Pending CN103104731A (en) | 2013-01-18 | 2013-01-18 | Gas switching valve with earthquake gas valve function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103104731A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615589A (en) * | 2013-12-06 | 2014-03-05 | 潘兆铿 | Ignition channel structure of multichannel step type electric fuel gas regulating valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4542760A (en) * | 1983-09-29 | 1985-09-24 | Edmond Flauiani | Earthquake responsive device for automatically shutting off gas or water or electricity or the like |
| CN2189248Y (en) * | 1993-11-11 | 1995-02-08 | 高培荣 | Low pressure gas pipeline equalising valve |
| CN102155562A (en) * | 2011-04-20 | 2011-08-17 | 宁波佳尔灵气动机械有限公司 | Gas cut-off valve in earthquake |
-
2013
- 2013-01-18 CN CN2013100267906A patent/CN103104731A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4542760A (en) * | 1983-09-29 | 1985-09-24 | Edmond Flauiani | Earthquake responsive device for automatically shutting off gas or water or electricity or the like |
| CN2189248Y (en) * | 1993-11-11 | 1995-02-08 | 高培荣 | Low pressure gas pipeline equalising valve |
| CN102155562A (en) * | 2011-04-20 | 2011-08-17 | 宁波佳尔灵气动机械有限公司 | Gas cut-off valve in earthquake |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615589A (en) * | 2013-12-06 | 2014-03-05 | 潘兆铿 | Ignition channel structure of multichannel step type electric fuel gas regulating valve |
| CN103615589B (en) * | 2013-12-06 | 2016-01-20 | 潘兆铿 | The ignition channel structure of multi-channel stepped electric gas control valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130515 |