CN101718362A - Control valve core with function of automatically cutting off gas with excess flow - Google Patents
Control valve core with function of automatically cutting off gas with excess flow Download PDFInfo
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- CN101718362A CN101718362A CN200910220228A CN200910220228A CN101718362A CN 101718362 A CN101718362 A CN 101718362A CN 200910220228 A CN200910220228 A CN 200910220228A CN 200910220228 A CN200910220228 A CN 200910220228A CN 101718362 A CN101718362 A CN 101718362A
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- umbrella
- gas
- valve body
- umbrella rod
- fuel gas
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Abstract
The invention relates to a control valve core with function of automatically cutting off gas with excess flow and belongs to an accessory of a fuel gas valve. The control valve core can be embedded into a common fuel gas valve and a magnetic fuel gas valve and is used for automatically cutting off gas source when leakage of fuel gas occurs. The control valve core comprises a valve body with a fuel gas inlet and a fuel gas outlet; the inner wall of the fuel gas outlet of the valve body is provided with an annular boss; the inside of the valve body is provided with an umbrella rod bracket and an umbrella rod; the umbrella rod bracket is of a cylindrical shape; one side of the umbrella rod bracket is an open end; the other side of the umbrella rod bracket is a closed end; a round hole is formed in the closed end; the open end is arranged on the annular boss; the umbrella rod runs through the round hole of the umbrella rod bracket; the umbrella rod end outside the umbrella rod bracket is provided with a spring baffle plate; the umbrella rod end inside the umbrella rod bracket is an umbrella-shaped umbrella head; the outside of the umbrella rod between the umbrella rod bracket and the spring baffle plate is provided with a spring; the lower part of the fuel gas outlet of the valve body is provided with a magnetic ring clamp groove of which the inside is provided with a magnetic ring and the lower end is provided with a through hole; and the polarity of the magnetic ring is the same with that of a switch of the magnetic fuel gas valve.
Description
Technical field:
The invention belongs to the accessory of gas valve, particularly relate to a kind of control spool with function of automatically cutting off gas with excess flow.This control spool can be embedded in general gas valve and the magnetic gas valve, is used for cutting off automatically when gas leakage takes place source of the gas.
Background technique:
General gas valve and magnetic gas valve are the matching partss in gas appliance and the fuel gas pipeline, and family uses natural gas, coal gas, liquid gas etc. more and more at present; In use, occur the combustion gas hose aging sometimes and come off, gas leakage takes place; Close, cut off source of the gas serious accidents such as gas poisoning, fire, blast will take place as untimely, bring serious harm for the people's life, property.Nearly hundred of serious accidents such as the gas poisoning that China takes place because of gas leakage every year, fire, blast have caused great loss for the people's life, property.And existing in the market gas valve does not have the inflow-rate of water turbine protective function, though some gas valves have the gas leakage alarm device, but existing gas leakage alarm device can only point out people to take emergent accordingly protective measures in the mode of alarm equipment alarm the information of gas leakage, can not immediately, automatically stop the leakage of combustion gas; Thereby, be difficult to guarantee that the combustion gas user's is safe in utilization.
Summary of the invention:
Do not have the inflow-rate of water turbine protective function at existing gas valve; can not stop the leakage of combustion gas automatically; be difficult to guarantee combustion gas user's problem safe in utilization, the invention provides a kind of control spool with function of automatically cutting off gas with excess flow that can when gas leakage, cut off source of the gas automatically.
To achieve these goals, the present invention adopts following technological scheme, a kind of control spool with function of automatically cutting off gas with excess flow, comprise valve body with fuel gas inlet and gas outlet, the inwall of the gas outlet of valve body is provided with annular boss, and the outer wall of the gas outlet of valve body is provided with outside thread; Be provided with umbrella shaft bar and umbrella bar in valve body, described umbrella shaft bar is cylindric, and the one side is an opening end, and opposite side is a closed end, is provided with circular hole in the center of its closed end, and its opening end is arranged on the annular boss of valve body; Described umbrella bar is by the circular hole of umbrella shaft bar, and the outer umbrella rod end of umbrella shaft bar has spring stop, and the umbrella rod end in the umbrella shaft bar is a umbrella shape umbrella head, and the umbrella bar between umbrella shaft bar and spring stop is outside equipped with spring; Be provided with inside and have the magnet ring draw-in groove that magnet ring, lower end have through hole below the gas outlet of valve body, described magnet ring is provided with the baffle plate with through hole, and magnet ring is made by magnetic material, and its polarity is identical with the polarity of the switch of magnetic gas valve.
For control spool of the present invention can better be resetted, be provided with projection at the head of described umbrella shape umbrella head.
For the gas outlet that makes umbrella shape umbrella head and valve body better seals, the inwall of described annular boss is interior inclined-plane.
Working principle of the present invention:
Air-flow in fuel gas pipeline is in normal state following time, and combustion gas provides combustion gas by slit and the gas valve that the present invention controls the spool periphery for gas cooker etc.; In case the air-flow in the fuel gas pipeline has surpassed the pressure state when coming off (be sebific duct) of control valve in-core spring, after the umbrella bar of control valve in-core will overcome the resistance of spring, by the gas outlet sealing of umbrella shape umbrella head and valve body, thus the cut-out air-flow.When the air pressure in the fuel gas pipeline returns to safe condition, close the magnetic gas valve; At this moment, move on the switch of magnetic gas valve, because magnet ring is made by magnetic material, its polarity is identical with the polarity of the switch of magnetic gas valve, and the principle according to the magnetic opposite sex is repelled moves upward after magnet ring is stressed, and the umbrella shape umbrella crown of control spool is risen.At this moment, control spool of the present invention recovers normal working state, and combustion gas is normally passed through.
Beneficial effect of the present invention:
Control spool of the present invention can cut off source of the gas automatically when gas leakage takes place, thereby has improved the Security that combustion gas is used greatly; Avoided generation because of serious accidents such as gas poisoning that gas leakage causes, fire, blasts.In addition, through evidence, when gas leakage took place, control spool of the present invention can absolutely cut off source of the gas, reliability height.
Description of drawings:
Fig. 1 is the structural representation of control spool of the present invention;
Fig. 2 is the structural representation of the present invention when being in normal opening state;
Fig. 3 is the structural representation of the present invention when being in inflow-rate of water turbine and cutting off the source of the gas state;
Fig. 4 is the structural representation of the present invention when being in reset mode;
Among the figure, 1, the magnet ring draw-in groove, 2, through hole, 3, magnet ring, 4, annular boss, 5, outside thread, 6, gas outlet, 7, the umbrella shaft bar, 8, circular hole, 9, the umbrella bar, 10, spring, 11, valve body, 12, projection, 13, umbrella shape umbrella head, 14, spring stop, 15, fuel gas inlet, 16, the air outlet, 17, the magnetic gas valve, 18, switch, 19, internal thread, 20, suction port.
Embodiment:
The present invention is described further below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of control spool with function of automatically cutting off gas with excess flow, comprise the valve body 11 with fuel gas inlet 15 and gas outlet 6, the inwall at gas outlet 6 places of valve body 11 is provided with annular boss 4, and the outer wall at gas outlet 6 places of valve body 11 is provided with outside thread 5; Be provided with umbrella shaft bar 7 and umbrella bar 9 in valve body 11, described umbrella shaft bar 7 is cylindric, and the one side is an opening end, and opposite side is a closed end, is provided with circular hole 8 in the center of its closed end, and its opening end is arranged on the annular boss 4 of valve body 11; Described umbrella bar 9 is by the circular hole 8 of umbrella shaft bar 7, and umbrella shaft bar 7 outer umbrella bar 9 ends have spring stop 14, and umbrella bar 9 ends in the umbrella shaft bar 7 are umbrella shape umbrella head 13, and the umbrella bar 9 between umbrella shaft bar 7 and spring stop 14 is outside equipped with spring 10; Below the gas outlet 6 of valve body 11, be provided with inside and have the magnet ring draw-in groove 1 that magnet ring 3, lower end have through hole 2, described magnet ring 3 is provided with the baffle plate with through hole, magnet ring 3 is made by magnetic material, and its polarity is identical with the polarity of the switch 18 of magnetic gas valve 17.
For control spool of the present invention can better be resetted, be provided with projection 12 at the head of described umbrella shape umbrella head 13.
For the umbrella shape umbrella head 13 and the gas outlet 6 of valve body 11 are better sealed, the inwall of described annular boss 4 is interior inclined-plane.
During use, control spool of the present invention is embedded in the magnetic gas valve 17 by the internal thread 19 at magnetic gas valve 17 suction ports 20 places, the outside thread 5 of control spool of the present invention.
As shown in Figure 2, the air-flow in fuel gas pipeline is in normal state following time, and control spool of the present invention is in normal opening state.At this moment, the switch 18 of magnetic gas valve 17 is opened downwards, and the umbrella shape umbrella head 13 of control spool leaves the gas outlet 6 of valve body 11; Combustion gas enters valve body 11 from the suction port 20 of magnetic gas valve 17, and the through hole 2 of slit, magnet ring 3 and the magnet ring draw-in groove 1 through controlling spool valve body 11 inner peripherys passes through successively, flows to the air outlet 16 of magnetic gas valve 17.
As shown in Figure 3, when the air-flow in the fuel gas pipeline had surpassed the pressure state (being that sebific duct comes off) of control valve in-core spring 10, the control spool was in inflow-rate of water turbine and cuts off the source of the gas state.At this moment, the switch 18 of magnetic gas valve 17 is opened downwards, and air-flow is in the inflow-rate of water turbine state, and the pressurized gas in the valve body 11 push up gas outlet 6 to valve body 11 with umbrella shape umbrella head 13, source of the gas is cut off, thereby reach the effect that inflow-rate of water turbine cuts off automatically.
As shown in Figure 4, when magnetic gas valve 17 was closed, control spool of the present invention was in reset mode, recovered the state that air communication is crossed.At this moment, magnet ring 3 is subjected to the active force of magnetic gas valve 17 switches 18 homopolar-repulsions to be pushed to the suction port 20 of magnetic gas valve 17, and magnet ring 3 withstands the projection 12 of umbrella shape umbrella head 13, and with umbrella shape umbrella head 13 jack-up, forces umbrella bar 9 to reset, and normally passes through thereby recover combustion gas.
Claims (3)
1. control spool with function of automatically cutting off gas with excess flow, it is characterized in that comprising valve body with fuel gas inlet and gas outlet, the inwall of the gas outlet of valve body is provided with annular boss, and the outer wall of the gas outlet of valve body is provided with outside thread; Be provided with umbrella shaft bar and umbrella bar in valve body, described umbrella shaft bar is cylindric, and the one side is an opening end, and opposite side is a closed end, is provided with circular hole in the center of its closed end, and its opening end is arranged on the annular boss of valve body; Described umbrella bar is by the circular hole of umbrella shaft bar, and the outer umbrella rod end of umbrella shaft bar has spring stop, and the umbrella rod end in the umbrella shaft bar is a umbrella shape umbrella head, and the umbrella bar between umbrella shaft bar and spring stop is outside equipped with spring; Be provided with inside and have the magnet ring draw-in groove that magnet ring, lower end have through hole below the gas outlet of valve body, described magnet ring is provided with the baffle plate with through hole, and magnet ring is made by magnetic material, and its polarity is identical with the polarity of the switch of magnetic gas valve.
2. a kind of control spool with function of automatically cutting off gas with excess flow according to claim 1 is characterized in that being provided with projection at the head of described umbrella shape umbrella head.
3. a kind of control spool with function of automatically cutting off gas with excess flow according to claim 1, the inwall that it is characterized in that described annular boss is interior inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910220228A CN101718362A (en) | 2009-11-27 | 2009-11-27 | Control valve core with function of automatically cutting off gas with excess flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910220228A CN101718362A (en) | 2009-11-27 | 2009-11-27 | Control valve core with function of automatically cutting off gas with excess flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101718362A true CN101718362A (en) | 2010-06-02 |
Family
ID=42432974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910220228A Pending CN101718362A (en) | 2009-11-27 | 2009-11-27 | Control valve core with function of automatically cutting off gas with excess flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101718362A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963253A (en) * | 2010-11-05 | 2011-02-02 | 廖新桃 | Push-type multifunctional overflow-preventing fuel gas safety valve |
| CN102121540A (en) * | 2010-12-09 | 2011-07-13 | 廖新桃 | Self-closing fireproof valve for gas fire protection |
| CN107061826A (en) * | 2017-06-13 | 2017-08-18 | 邹启榆 | A kind of gas self-closing valve |
| CN109000033A (en) * | 2018-10-12 | 2018-12-14 | 温州联安物联网科技有限公司 | A kind of automatic fuel gas cutting off device |
-
2009
- 2009-11-27 CN CN200910220228A patent/CN101718362A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963253A (en) * | 2010-11-05 | 2011-02-02 | 廖新桃 | Push-type multifunctional overflow-preventing fuel gas safety valve |
| CN101963253B (en) * | 2010-11-05 | 2013-07-10 | 廖新桃 | Push-type multifunctional overflow-preventing fuel gas safety valve |
| CN102121540A (en) * | 2010-12-09 | 2011-07-13 | 廖新桃 | Self-closing fireproof valve for gas fire protection |
| CN107061826A (en) * | 2017-06-13 | 2017-08-18 | 邹启榆 | A kind of gas self-closing valve |
| CN109000033A (en) * | 2018-10-12 | 2018-12-14 | 温州联安物联网科技有限公司 | A kind of automatic fuel gas cutting off device |
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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 |
Open date: 20100602 |