CN205559888U - Two -way non return seepage alarm control valve - Google Patents
Two -way non return seepage alarm control valve Download PDFInfo
- Publication number
- CN205559888U CN205559888U CN201620266899.6U CN201620266899U CN205559888U CN 205559888 U CN205559888 U CN 205559888U CN 201620266899 U CN201620266899 U CN 201620266899U CN 205559888 U CN205559888 U CN 205559888U
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- China
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- valve
- valve body
- piston
- pressing plate
- alarm control
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- Withdrawn - After Issue
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Check Valves (AREA)
Abstract
The utility model discloses a two -way non return seepage alarm control valve, including valve body, feed liquor pipe and drain pipe, be equipped with the valve pocket that runs through the valve body in the valve body, both ends all are equipped with the case about the valve body, and both ends all are equipped with the end cover about the valve body, the case includes the piston, and hinge joint in the valve pocket has a piston axle, and the epaxial cover of piston is equipped with the clamp plate, and the outside of clamp plate all is equipped with interior valve gap, valve clack clamp plate and valve clack in proper order, and the equal butt of valve clack clamp plate and valve clack is on the valve body, and the epaxial cover of piston between valve clack clamp plate and the piston is equipped with the spring, and the spring runs through interior valve gap and valve clack clamp plate, and the other end of piston axle is connected with lock nut through threaded connection's mode. The beneficial effect of the utility model: can prevent liquid convection current and seepage, simultaneously still possess compact structure, it has, and the leakproofness is good, simple structure, small, light in weight, loss of pressure are little, longe -lived, easy operation, use and easy maintenance and can the volume production a bit, application range is extensive moreover.
Description
Technical field
This utility model relates to valve technology field, particularly relates to a kind of dual check leakage alarm control valve.
Background technology
The fire-fighting principle of aqueous film-forming foam extinguishing agent is dependent under foam and moisture film dual function reaching purpose of putting out a fire.Owing to the fluoro-carbon surface active punishment in AFFF fire extinguishing punishment and hydrocarbon surfactant act on jointly, water membrane is formed on the surface of flammable liquid, and have good mobility, foam can extend rapidly on liquid level, under the common effect of moisture film, isolation air, makes fire suffocate, thus prevents 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 control valve 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 the most not yet proposed.
Utility model content
The purpose of this utility model is to provide dual check leakage alarm control valve, to overcome currently available technology above shortcomings.
For realizing above-mentioned technical purpose, the technical solution of the utility model is achieved in that
A kind of dual check leakage alarm control valve, including valve body, the valve pocket running through valve body it is provided with 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 connects piston shaft, and the other end of described piston shaft extends to outside described valve body, the pressing plate matched with connected piston it is arranged with on described piston shaft, 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, it is arranged with spring on described piston shaft between described flap pressing plate and described piston, 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 connects 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, all it is fastenedly connected by screw between described piston shaft and piston, and this piston shaft one end is fastened in piston.
Further, if the end cap of the end cap of described valve body left end and described valve body right-hand member is fastenedly connected by bolt stem 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 receiving chamber suitable with described interior valve gap appearance profile.
Further, described flap is provided with the flap pressing plate receiving 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.
The beneficial effects of the utility model: by using two spools and the opening and closing utilizing spring to carry out valve, so that this utility model 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 with volume production a little, and range is extensive.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation according to the dual check leakage alarm control valve described in this utility model embodiment；
Fig. 2 is the schematic diagram according to the dual check leakage alarm control valve described in this utility model embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art are obtained, broadly fall into the scope of this utility model protection.
nullAs shown in Figure 1，A kind of dual check leakage alarm control valve described in this utility model embodiment，Including valve body 1，The valve pocket 2 running through valve body it is provided with 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；nullDescribed spool 5 includes the piston 7 being arranged in described valve body 1 valve pocket 2，Piston 7 in described valve pocket 2 connects piston shaft 8，And the other end of described piston shaft 8 extends in the described end cap 6 of same side，The pressing plate 9 matched with connected piston 7 it is arranged with on described piston shaft 8，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，It is arranged with spring 13 on described piston shaft 8 between described flap pressing plate 11 and described piston 7，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 connects 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 prevents the liquid that described feed tube 3 enters toward one end seepage being provided with interior valve gap 10.
It is equipped with O type packing ring (not shown) between described pressing plate 9 with corresponding described interior valve gap 10.All it is fastenedly connected by 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.
If the end cap 6 of the end cap 6 of described valve body 1 left end and described valve body 1 right-hand member is fastenedly connected by bolt stem 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 is more preferable.
Described flap pressing plate 11 is provided with the interior valve gap suitable with described interior valve gap 10 appearance profile and accommodates chamber (not shown), prevents 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 accommodates chamber (not shown), prevents 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.
Understand technique scheme of the present utility model for convenience, below by way of in specifically used mode, technique scheme of the present utility model 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, by means of technique scheme of the present utility model, by using two spools 5 and utilizing spring 13 to carry out the opening and closing of valve, so that this utility model 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 with volume production a little, and range is extensive.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (10)
1. a dual check leakage alarm control valve, including valve body, the valve pocket running through valve body it is provided with 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 connects piston shaft, and the other end of described piston shaft extends to outside described valve body, the pressing plate matched with connected piston it is arranged with on described piston shaft, 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, it is arranged with spring on described piston shaft between described flap pressing plate and described piston, 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 connects locking nut, described locking nut is connected on the step of end cap inwall of same side near the side of described flap.
Dual check leakage alarm control valve the most according to claim 1, 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.
Dual check leakage alarm control valve the most according to claim 2, it is characterised in that the circumference of described piston is provided with O type leakage-proof ring.
Dual check leakage alarm control valve the most according to claim 3, it is characterised in that be equipped with O type packing ring between described pressing plate with corresponding described interior valve gap.
Dual check leakage alarm control valve the most according to claim 4, it is characterised in that be all fastenedly connected by screw between described piston shaft and piston, and this piston shaft one end is fastened in piston.
Dual check leakage alarm control valve the most according to claim 5, it is characterized in that, if the end cap of the end cap of described valve body left end and described valve body right-hand member is fastenedly connected by bolt stem between the two, additionally, be provided with the Flange joint portion installing described bolt on end cap.
Dual check leakage alarm control valve the most according to claim 6, 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 accommodates chamber.
Dual check leakage alarm control valve the most according to claim 7, it is characterised in that described flap is provided with the flap pressing plate suitable with described flap pressing plate appearance profile and accommodates chamber.
Dual check leakage alarm control valve the most according to claim 8, it is characterised in that described valve body is provided with the steam vent being connected with valve pocket.
Dual check leakage alarm control valve the most according to claim 9, it is characterised in that described end cap is hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620266899.6U CN205559888U (en) | 2016-03-31 | 2016-03-31 | Two -way non return seepage alarm control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620266899.6U CN205559888U (en) | 2016-03-31 | 2016-03-31 | Two -way non return seepage alarm control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205559888U true CN205559888U (en) | 2016-09-07 |
Family
ID=56813627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620266899.6U Withdrawn - After Issue CN205559888U (en) | 2016-03-31 | 2016-03-31 | Two -way non return seepage alarm control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205559888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673893A (en) * | 2016-03-31 | 2016-06-15 | 上海金盾消防安全设备有限公司 | Bidirectional non-return leakage alarm control valve |
-
2016
- 2016-03-31 CN CN201620266899.6U patent/CN205559888U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673893A (en) * | 2016-03-31 | 2016-06-15 | 上海金盾消防安全设备有限公司 | Bidirectional non-return leakage alarm control valve |
| CN105673893B (en) * | 2016-03-31 | 2019-02-12 | 上海金盾消防安全设备有限公司 | Dual check leakage alarm control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160907 Effective date of abandoning: 20190212 |
|
| AV01 | Patent right actively abandoned |