CN105673893A - Bidirectional non-return leakage alarm control valve - Google Patents
Bidirectional non-return leakage alarm control valve Download PDFInfo
- Publication number
- CN105673893A CN105673893A CN201610197470.0A CN201610197470A CN105673893A CN 105673893 A CN105673893 A CN 105673893A CN 201610197470 A CN201610197470 A CN 201610197470A CN 105673893 A CN105673893 A CN 105673893A
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- CN
- China
- Prior art keywords
- valve
- valve body
- piston
- leakage alarm
- pressing plate
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a bidirectional non-return leakage alarm control valve which comprises a valve body, a liquid inlet pipe and a liquid outlet pipe. A valve cavity penetrating the valve body is formed in the valve body. Valve elements are arranged at the left end and the right end of the valve body, and end covers are arranged at the left end and the right end of the valve body. Each valve element comprises a piston, the position, in the valve cavity, of each piston is connected with a piston shaft, and each piston shaft is sleeved with a press plate. An inner valve deck, a valve clack press plate and a valve clack are sequentially arranged on the outer side of each press plate. The valve clack press plates and the valve clacks are connected to the valve body in an abutting manner. The position, between the corresponding valve clack press plate and the corresponding piston, of each piston shaft is sleeved with a spring. Each spring penetrates the corresponding inner valve deck and the corresponding valve clack press plate. The other end of each piston shaft is in threaded connection with a lock nut. The bidirectional non-return leakage alarm control valve has the beneficial effects that liquid convection and leakage can be avoided; meanwhile, the bidirectional non-return leakage alarm control valve is compact in structure, good in sealing performance, simple in structure, small in size, light, small in pressure loss, long in service life, easy to operate, convenient to use and maintain and capable of achieving mass production; and the application range is wide.
Description
Technical field
The present invention relates to valve technology field, particularly relate to a kind of dual check leakage alarm and control valve.
Background technology
The fire-fighting principle of aqueous film-forming foam extinguishing agent is dependent under foam and moisture film dual function to reach fire extinguishing purpose. Due to the fluoro-carbon surface active punishment in AFFF fire extinguishing punishment and hydrocarbon surfactant combined effect, water membrane is formed on the surface of flammable liquid, and have good mobility, foam can extend rapidly on liquid level, under the combined effect of moisture film, isolation air, makes fire suffocate, thus preventing burning. AFFF fire extinguishing system is mainly by casing, foam solution container, proportioner, flexible pipe, spray gun, control valve and leading truck composition. Foam solution is with water after proportioner mixes, and directly alignment burning things which may cause a fire disaster sprays, very convenient. But the situation of liquid convection and seepage easily occurs in the valve that controls used in AFFF fire extinguishing system, and then can cause fire extinguishing procedure occurs certain danger.
For the problem in correlation technique, effective solution is not yet proposed at present.
Summary of the invention
It is an object of the invention to provide dual check leakage alarm and control valve, to overcome currently available technology above shortcomings.
For realizing above-mentioned technical purpose, the technical scheme is that and be achieved in that:
A kind of dual check leakage alarm controls valve, including valve body, the valve pocket of valve body it is provided with through in described valve body, described valve body is provided with feed tube and drain pipe, described feed tube carries out conducting by described valve pocket and described drain pipe and forms fluid path passage, two ends, described valve body left and right are provided with two identical spools of structure, and the two ends, left and right of described valve body are equipped with the end cap being located on spool, described spool includes the piston being arranged in described valve body valve pocket, piston in described valve pocket is connected to piston shaft, and the other end of described piston shaft extends to outside described valve body, described piston shaft is arranged with the pressing plate matched with connected piston, the outside of described pressing plate is all sequentially provided with interior valve gap, flap pressing plate and flap, wherein, described flap pressing plate and flap are all connected on described valve body, described piston shaft between described flap pressing plate and described piston is arranged with spring, described spring runs through described interior valve gap and flap pressing plate, the mode that the other end of described piston shaft is threaded connection is connected to locking nut, described locking nut is connected on the step of end cap inwall of same side near the side of described flap.
Further, described feed tube and drain pipe are positioned on the same section of described valve body, and this section is positioned at the middle part of described valve body, wherein, when valve is closed, two described pistons block the fluid path passage between described feed tube and described drain pipe, and when valve is in opening, described spring drives described piston to open the fluid path passage between described feed tube and described drain pipe.
Further, the circumference of described piston is provided with O type leakage-proof ring.
Further, it is equipped with O type packing ring between described pressing plate with corresponding described interior valve gap.
Further, it is fastenedly connected each through screw between described piston shaft and piston, and this piston shaft one end is fastened in piston.
Further, the end cap of described valve body left end and the end cap of described valve body right-hand member are fastenedly connected by some bolts between the two, additionally, be provided with the Flange joint portion installing described bolt on end cap.
Further, described flap pressing plate is provided with the interior valve gap accommodation chamber suitable with described interior valve gap appearance profile.
Further, described flap is provided with the flap pressing plate accommodation chamber suitable with described flap pressing plate appearance profile.
Further, described valve body is provided with the steam vent being connected with valve pocket.
Further, described end cap is hollow structure.
Beneficial effects of the present invention: by adopting two spools and the opening and closing utilizing spring to carry out valve, so that the present invention is prevented from liquid convection and seepage in use, it is also equipped with compact conformation simultaneously, it has good airproof performance, simple in construction, volume is little, lightweight, the pressure loss is little, life-span length, simple to operate, convenient maintenance and can volume production a little, and use in extensive range.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The dual check leakage alarm that Fig. 1 is described according to embodiments of the present invention controls the structural representation of valve;
The dual check leakage alarm that Fig. 2 is described according to embodiments of the present invention controls the schematic diagram of valve.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art obtain, broadly fall into the scope of protection of the invention.
As shown in Figure 1, a kind of dual check leakage alarm described in the embodiment of the present invention controls valve, including valve body 1, the valve pocket 2 of valve body it is provided with through in described valve body 1, described valve body 1 is provided with feed tube 3 and drain pipe 4, described feed tube 3 and drain pipe 4 are positioned on the same section of described valve body 1, and this section is positioned at the middle part of described valve body 1, described feed tube 3 carries out conducting by described valve pocket 2 and described drain pipe 4 and forms fluid path passage, described valve body about 1 two ends are provided with two identical spools of structure 5, and two spools 5 are to be arranged in described valve pocket 2 with the middle part section of described valve body 1 for the plane of symmetry, when valve is closed, two described valve bodies 1 block the fluid path passage between described feed tube 3 and described drain pipe 4, the two ends, left and right of described valve body 1 are equipped with the end cap 6 being located on spool 5, in addition, described end cap 6 is all fastened on described valve body 1, described spool 5 includes the piston 7 being arranged in described valve body 1 valve pocket 2, piston 7 in described valve pocket 2 is connected to piston shaft 8, and the other end of described piston shaft 8 extends in the described end cap 6 of same side, described piston shaft 8 is arranged with the pressing plate 9 matched with connected piston 7, the outside of described pressing plate 9 is all sequentially provided with interior valve gap 10, flap pressing plate 11 and flap 12, wherein, described flap pressing plate 11 and flap 12 are all connected on described valve body 1, described piston shaft 8 between described flap pressing plate 11 and described piston 7 is arranged with spring 13, described spring 13 runs through described interior valve gap 10 and flap pressing plate 11, and two ends are connected on described flap pressing plate 11 and described piston 7 respectively, the mode that the other end of described piston shaft 8 is threaded connection is connected to locking nut 14, described locking nut 14 is connected on the step of end cap 6 inwall of same side near the side of described flap 12.
The circumference of described piston 7 is provided with O type leakage-proof ring (not shown) so that the periphery of described piston 7 is more tight with the laminating of described valve pocket 2, thus preventing the past one end seepage being provided with interior valve gap 10 of liquid that described feed tube 3 enters.
It is equipped with O type packing ring (not shown) between described pressing plate 9 with corresponding described interior valve gap 10. It is fastenedly connected each through screw 14 between described piston shaft 8 and piston 7, and this piston shaft 8 one end is fastened in piston 7. Described end cap 6 is in hollow structure.
The end cap 6 of described valve body 1 left end and the end cap 6 of described valve body 1 right-hand member are fastenedly connected by some bolts 15 between the two, in addition, end cap 6 is provided with the Flange joint portion 16 installing described bolt 15, connects end cap 6 by Flange joint portion 16 so that control valve stability in use better.
Described flap pressing plate 11 is provided with the interior valve gap suitable with described interior valve gap 10 appearance profile and holds chamber (not shown), it is prevented that described interior valve gap 10 double swerve in the course of the work.
Described flap 12 is provided with the flap pressing plate suitable with described flap pressing plate 11 appearance profile and holds chamber (not shown), it is prevented that described flap pressing plate 11 double swerve in the course of the work.
As in figure 2 it is shown, described valve body 1 is provided with described steam vent 17, described feed tube 3 and described drain pipe 4, facilitate described piston 7 opening movement.
In order to conveniently understand the technique scheme of the present invention, below by way of in specifically used mode, the technique scheme of the present invention is described in detail.
When specifically used, when liquid enters in the valve pocket 2 of described valve body 1 from described feed tube 3, it is arranged in the middle part of described valve body 1 the described piston 7 of section part under fluid pressure effect, promote the described spring 13 connecting described piston 7, the fluid path passage blocked between described feed tube 3 and described drain pipe 4 is opened, liquid can arrive described drain pipe 4 from described feed tube 3, when needs closing control valve, described feed tube 3 stops feed liquor, described drain pipe 4 discharges remaining liq, described spring 13 recovers normal condition, and then make described piston 7 block the fluid path passage between described feed tube 3 and described drain pipe 4.
In sum, technique scheme by means of the present invention, by adopting two spools 5 and utilizing spring 13 to carry out the opening and closing of valve, so that the present invention is prevented from liquid convection and seepage in use, it is also equipped with compact conformation simultaneously, it has good airproof performance, simple in construction, volume is little, lightweight, the pressure loss is little, life-span length, simple to operate, convenient maintenance and can volume production a little, and use in extensive range.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. a dual check leakage alarm controls valve, including valve body, the valve pocket of valve body it is provided with through in described valve body, described valve body is provided with feed tube and drain pipe, described feed tube carries out conducting by described valve pocket and described drain pipe and forms fluid path passage, it is characterized in that, two ends, described valve body left and right are provided with two identical spools of structure, and the two ends, left and right of described valve body are equipped with the end cap being located on spool, described spool includes the piston being arranged in described valve body valve pocket, piston in described valve pocket is connected to piston shaft, and the other end of described piston shaft extends to outside described valve body, described piston shaft is arranged with the pressing plate matched with connected piston, the outside of described pressing plate is all sequentially provided with interior valve gap, flap pressing plate and flap, wherein, described flap pressing plate and flap are all connected on described valve body, described piston shaft between described flap pressing plate and described piston is arranged with spring, described spring runs through described interior valve gap and flap pressing plate, the mode that the other end of described piston shaft is threaded connection is connected to locking nut, described locking nut is connected on the step of end cap inwall of same side near the side of described flap.
2. dual check leakage alarm according to claim 1 controls valve, it is characterized in that, described feed tube and drain pipe are positioned on the same section of described valve body, and this section is positioned at the middle part of described valve body, wherein, when valve is closed, two described pistons block the fluid path passage between described feed tube and described drain pipe, when valve is in opening, described spring drives described piston to open the fluid path passage between described feed tube and described drain pipe.
3. dual check leakage alarm according to claim 2 controls valve, it is characterised in that the circumference of described piston is provided with O type leakage-proof ring.
4. dual check leakage alarm according to claim 3 controls valve, it is characterised in that be equipped with O type packing ring between described pressing plate with corresponding described interior valve gap.
5. dual check leakage alarm according to claim 4 controls valve, it is characterised in that be fastenedly connected each through screw between described piston shaft and piston, and this piston shaft one end is fastened in piston.
6. dual check leakage alarm according to claim 5 controls valve, it is characterized in that, the end cap of described valve body left end and the end cap of described valve body right-hand member are fastenedly connected by some bolts between the two, additionally, be provided with the Flange joint portion installing described bolt on end cap.
7. dual check leakage alarm according to claim 6 controls valve, it is characterised in that described flap pressing plate is provided with the interior valve gap suitable with described interior valve gap appearance profile and holds chamber.
8. dual check leakage alarm according to claim 7 controls valve, it is characterised in that described flap is provided with the flap pressing plate suitable with described flap pressing plate appearance profile and holds chamber.
9. dual check leakage alarm according to claim 8 controls valve, it is characterised in that described valve body is provided with the steam vent being connected with valve pocket.
10. dual check leakage alarm according to claim 9 controls valve, it is characterised in that described end cap is hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197470.0A CN105673893B (en) | 2016-03-31 | 2016-03-31 | Dual check leakage alarm control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197470.0A CN105673893B (en) | 2016-03-31 | 2016-03-31 | Dual check leakage alarm control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105673893A true CN105673893A (en) | 2016-06-15 |
| CN105673893B CN105673893B (en) | 2019-02-12 |
Family
ID=56224843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610197470.0A Active CN105673893B (en) | 2016-03-31 | 2016-03-31 | Dual check leakage alarm control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105673893B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027330A (en) * | 2018-10-10 | 2018-12-18 | 上海高中压阀门股份有限公司 | Shut off control valve and its application method |
| CN117823651A (en) * | 2024-03-01 | 2024-04-05 | 山东东阀制冷科技有限公司 | Anti-leakage two-step opening electromagnetic valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2101797U (en) * | 1991-01-15 | 1992-04-15 | 深圳深明技术开发公司 | Pneumatic stop valve with dual-cover plate |
| CN1322905A (en) * | 2000-05-08 | 2001-11-21 | 帕森斯及惠特莫尔有限公司 | Two-way check valve using for hydraulic system |
| US20020029812A1 (en) * | 2000-09-01 | 2002-03-14 | Akihisa Hotta | Bi- directional pilot type electromagnetic valves |
| CN102518862A (en) * | 2011-12-28 | 2012-06-27 | 江南工业集团有限公司 | Double two-way stop air-operated cylinder valve |
| CN103591344A (en) * | 2013-11-28 | 2014-02-19 | 天津市国威给排水设备制造有限公司 | Two-way controllable non-return valve |
| CN203488193U (en) * | 2013-08-14 | 2014-03-19 | 深圳市神拓机电设备有限公司 | Hydraulic control check valve |
| CN205559888U (en) * | 2016-03-31 | 2016-09-07 | 上海金盾消防安全设备有限公司 | Two -way non return seepage alarm control valve |
-
2016
- 2016-03-31 CN CN201610197470.0A patent/CN105673893B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2101797U (en) * | 1991-01-15 | 1992-04-15 | 深圳深明技术开发公司 | Pneumatic stop valve with dual-cover plate |
| CN1322905A (en) * | 2000-05-08 | 2001-11-21 | 帕森斯及惠特莫尔有限公司 | Two-way check valve using for hydraulic system |
| US20020029812A1 (en) * | 2000-09-01 | 2002-03-14 | Akihisa Hotta | Bi- directional pilot type electromagnetic valves |
| CN102518862A (en) * | 2011-12-28 | 2012-06-27 | 江南工业集团有限公司 | Double two-way stop air-operated cylinder valve |
| CN203488193U (en) * | 2013-08-14 | 2014-03-19 | 深圳市神拓机电设备有限公司 | Hydraulic control check valve |
| CN103591344A (en) * | 2013-11-28 | 2014-02-19 | 天津市国威给排水设备制造有限公司 | Two-way controllable non-return valve |
| CN205559888U (en) * | 2016-03-31 | 2016-09-07 | 上海金盾消防安全设备有限公司 | Two -way non return seepage alarm control valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027330A (en) * | 2018-10-10 | 2018-12-18 | 上海高中压阀门股份有限公司 | Shut off control valve and its application method |
| CN109027330B (en) * | 2018-10-10 | 2024-03-15 | 上海高中压阀门股份有限公司 | Shut-off control valve and method of use |
| CN117823651A (en) * | 2024-03-01 | 2024-04-05 | 山东东阀制冷科技有限公司 | Anti-leakage two-step opening electromagnetic valve |
| CN117823651B (en) * | 2024-03-01 | 2024-05-17 | 山东东阀制冷科技有限公司 | Anti-leakage two-step opening electromagnetic valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105673893B (en) | 2019-02-12 |
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Effective date of registration: 20200616 Address after: 201306 Building 8, No. 88, Wansong Road, Lingang xinpian District, free trade Experimental Zone, Pudong New Area, Shanghai Patentee after: SHANGHAI JINDUN FIRE-FIGHTING INTELLIGENCE SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 201318 prosperous industrial zone, Zhou Pu town, Shanghai, Pudong New Area Patentee before: SHANGHAI JINDUN FIRE-FIGHTING SECURITY EQUIPMENT Co.,Ltd. |
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