CN209213000U - Compensation device in wet alarm valve - Google Patents
Compensation device in wet alarm valve Download PDFInfo
- Publication number
- CN209213000U CN209213000U CN201822170394.1U CN201822170394U CN209213000U CN 209213000 U CN209213000 U CN 209213000U CN 201822170394 U CN201822170394 U CN 201822170394U CN 209213000 U CN209213000 U CN 209213000U
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- China
- Prior art keywords
- flap
- water hole
- compensation device
- locating part
- wet alarm
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Abstract
The utility model discloses compensation device in a kind of wet alarm valve, the water hole for being connected to flap epicoele with flap cavity of resorption is provided in the middle part of flap；Small flap is provided at water hole, small flap is located at intracavitary on flap；Finite place piece is set at water hole, and locating part is located at intracavitary under flap；It is connected between small flap and locating part by rod piece, the gap length between small flap and locating part is greater than the length of water hole, and there is water space between rod piece and water hole.The purpose of this utility model is that: for external compensation structure used by existing wet alarm valve, there is a problem of adjusting compensating flowrate and clear up metering hole extremely inconvenience, a kind of interior compensation device applied to wet alarm valve is provided.The interior compensation device is arranged in valve inner, for traditional external compensation structure, has more preferably performance.
Description
Technical field
The utility model belongs to water spray fire extinguishing system technical field.In particular it relates to a kind of for wet alarm valve
Interior compensation device.
Background technique
Wet alarm valve is that a kind of one kind for only water being allowed unidirectionally to flow into water injection system and being alarmed under regulation flow is unidirectional
Valve.Usually equal (water keeps water before and after flap by the hydraulic balance aperture in guide pipe to hydraulic pressure to wet alarm valve before and after flap
Flatten weighing apparatus).
Currently, traditional wet alarm valve uses external compensation structure, which is by increasing outside wet alarm valve
One compensation conduit is realized, for adjusting the pressure difference of wet alarm valve upper and lower cavity under flap closed state, specific adjust is logical
The size for installing restriction orifice in transformation pipeline is crossed, compensates the control of flow to realize.When need to adjust compensating flowrate or
Cleaning current limliting hole plug need detaching pipelines and replace orifice plate, carry out get up it is extremely inconvenient, this kind of mounting means gradually not by
Installation side and user accept.
Utility model content
The purpose of this utility model is that: for external compensation structure used by existing wet alarm valve, there is adjustment and mend
It repays flow and clears up the extremely inconvenient problem of metering hole, a kind of interior compensation device applied to wet alarm valve is provided.The interior benefit
It repays device to be arranged in valve inner, for traditional external compensation structure, there is more preferably performance.
To achieve the goals above, the technical solution adopted in the utility model are as follows:
Compensation device in a kind of wet alarm valve is provided with the mistake water for being connected to flap epicoele with flap cavity of resorption in the middle part of flap
Hole；Small flap is provided at water hole, small flap is located at intracavitary on flap；Finite place piece is set at water hole, and locating part is located at
It is intracavitary under flap；It is connected between small flap and locating part by rod piece, the gap length between small flap and locating part was greater than
The length in water hole, and there is water space between rod piece and water hole.When pressure difference and sufficient occurs in the upper and lower cavity separated by flap
When overcoming small flap weight, water flow washes small flap open, until end in contact limits under locating part and flap.Water flow through water hole by
Flap cavity of resorption enters flap epicoele, and wet alarm valve starts to compensate.It is small when compensation cavity pressure balance upper and lower to flap
Flap is fallen, and small flap and flap upper-end contact seal, and stops compensation.
Preferably, valve rod is provided on small flap, valve rod is located in water hole, valve rod side wall and water hole inner wall
Clearance fit, and the notch for crossing water is provided on valve rod side wall.Preferably, valve rod notch is with water hole axis
Center is uniformly distributed, and valve rod notch is provided at least three.This programme maintains flap only to move along the axis direction of water hole, has
Conducive to raising sealing performance.
Preferably, the notch for crossing water is provided on locating part.Preferably, locating part notch is with mistake
It is uniformly distributed centered on the axis of water hole, locating part notch is provided at least three.This programme is conducive to improve aqueous energy.
Preferably, the rod piece for connecting small flap and locating part is bolt, and locating part is connected through a screw thread with rod piece.
It is adjusted at a distance from small flap by rotary stopper part, is adjusted the Lift of small flap to reach and is adjusted refill flow
Effect.
Preferably, small flap gasket is provided between small flap and flap.Be conducive to improve small flap and mistake
The leakproofness in water hole.
Preferably, the cavity for buffering hydraulic pressure is provided in the middle part of flap, flap cavity is connected to water hole.It is slow
Impact of the unstable moment hydraulic pressure directly to small flap is rushed, the pressure adjusted between flap epicoele and flap cavity of resorption is more advantageous to
Balance.
Preferably, the side of flap cavity is closed by pressing plate.Making the manufacture difficulty of cavity reduces, reduce manufacture at
This.
Preferably, flap is hinged with valve deck, and valve deck is detachably connected with valve body.Without dismantling whole pipeline, only
After valve deck is dismantled, the i.e. adjustable compensating flowrate of flap is taken out, and convenient for safeguarding.
In conclusion by adopting the above-described technical solution, compared with the prior art, the beneficial effects of the utility model
It is: existing external compensation pipeline is removed, then compensation device is moved to wet alarm valve valve inner by outer pipeline, wet
Novel compensator is set in formula alarm valve internal flap.It can be adjusted by the thread the position of locating part, pipe can not dismantled
Valve deck is only opened on road, and flap is taken out from valve deck and is just adjustable compensating flowrate, reduces the maintenance cost of wet alarm valve.It goes
Fall the pipe fitting of external compensation pipeline, not only simplified alarm valve pipeline, saves partial material cost；Also reduce wet type report
The occupancy volume of alert valve, saves packing cost and transportation cost.The interior compensation device also has structure simple, easy for installation excellent
Point.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wet alarm valve.
Fig. 2 is the side view of wet alarm valve.
Fig. 3 is the A-A cross section view of wet alarm valve.
Fig. 4 is the structural schematic diagram one of valve deck, flap, flap gasket and supplementary device.
Fig. 5 is the structural schematic diagram two of valve deck, flap, flap gasket and supplementary device.
Fig. 6 is the structural schematic diagram one of flap and flap gasket.
Fig. 7 is the structural schematic diagram two of flap and flap gasket.
Fig. 8 is the structural schematic diagram of flap, flap gasket and pressing plate.
Fig. 9 is the structural schematic diagram one of compensation device.
Figure 10 is the structural schematic diagram two of compensation device.
Figure 11 water hole closed state schematic diagram.
Figure 12 water hole open state schematic diagram.
Label corresponding to component in attached drawing: 1- valve body, 2- valve deck, 3- flap, 4- flap epicoele, 5- flap cavity of resorption, 6-
Flap gasket, the small flap of 7-, 8- locating part, 9- rod piece, 10- pressing plate, 11- water hole, 12- flap cavity, 13- valve rod, 14-
Small flap gasket.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
Present embodiment discloses compensation devices in a kind of wet alarm valve, be provided with as Figure 1-10 shows, in the middle part of flap by
The water hole that flap epicoele is connected to flap cavity of resorption；Small flap is provided at water hole, small flap is located at intracavitary on flap；Cross water
Finite place piece is set at hole, and locating part is located at intracavitary under flap；Between small flap and locating part by rod piece connect, small flap with
Gap length between locating part is greater than the length of water hole, and there is water space between rod piece and water hole.
As shown in Fig. 3,11-12, when pressure difference occurs in the upper and lower cavity separated by flap and is enough to overcome small flap weight
When, water flow washes small flap open, until end in contact limits under locating part and flap.Water flows through water hole and enters flap by flap cavity of resorption
Epicoele, wet alarm valve start to compensate.When compensation to flap upper and lower cavity pressure balance, small flap is fallen, small flap with
The sealing of flap upper-end contact, stops compensation.
As shown in Fig. 3,9-10, valve rod is provided on small flap, valve rod is located in water hole, in valve rod side wall and water hole
Wall clearance fit, and the notch for crossing water is provided on valve rod side wall.Valve rod notch is uniformly divided centered on water hole axis
Cloth, valve rod notch are provided at least three.Making valve rod is in that there are three axial convex stupefied rod-shapes for band.
The notch for crossing water is provided with as shown in Fig. 3,9-10, on locating part.Locating part notch is with water hole axis
Center is uniformly distributed, and there are three the settings of locating part notch.Making locating part in center band, there are three the shapes of spoke.
As shown in Fig. 3,9-10, the rod piece for connecting small flap and locating part is that bolt, locating part and rod piece are connected by screw thread
It connects.The distance between locating part can rotate on rod piece, to adjust its position on bolt, and then adjust small flap.
As shown in Fig. 3,9-10, small flap gasket is provided between small flap and flap.The small flap of the present embodiment is close
Packing is made of flexible rubber material.
As shown in Fig. 3,7-8, the cavity for buffering hydraulic pressure is provided in the middle part of flap, flap cavity is connected to water hole.
It is closed by pressing plate the side of flap cavity.Be provided with gasket between flap and valve seat, gasket setting pressing plate and flap it
Between, gasket is fixed on flap by pressing plate.
As shown in Figs. 1-5, flap is hinged with valve deck, and valve deck is detachably connected with valve body.The present embodiment uses bolt and spiral shell
The detachable connection method in hole.
The interior compensation device specifically include that small flap, small flap gasket, locating part and for connect small flap and limit
The rod piece of position part, other associated connectors have flap, gasket, pressing plate etc..
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. compensation device in a kind of wet alarm valve, it is characterised in that: be provided in the middle part of flap by flap epicoele and flap cavity of resorption
The water hole of connection；Small flap is provided at water hole, small flap is located at intracavitary on flap；Finite place piece is set at water hole,
Locating part is located at intracavitary under flap；It is connected between small flap and locating part by rod piece, the gap between small flap and locating part
Length is greater than the length of water hole, and there is water space between rod piece and water hole.
2. compensation device in wet alarm valve according to claim 1, it is characterised in that: it is provided with valve rod on small flap,
Valve rod is located in water hole, valve rod side wall and water hole inner wall clearance fit, and is provided on valve rod side wall for crossing lacking for water
Mouthful.
3. compensation device in wet alarm valve according to claim 2, it is characterised in that: valve rod notch is with water hole axis
Centered on be uniformly distributed, valve rod notch is provided at least three.
4. compensation device in wet alarm valve according to claim 1, it is characterised in that: be provided on locating part for
The notch of water.
5. compensation device in wet alarm valve according to claim 4, it is characterised in that: locating part notch is with water hole axis
It is uniformly distributed centered on line, locating part notch is provided at least three.
6. compensation device in wet alarm valve according to claim 1, it is characterised in that: connect small flap and locating part
Rod piece is bolt, and locating part is connected through a screw thread with rod piece.
7. compensation device in wet alarm valve according to claim 1, it is characterised in that: be arranged between small flap and flap
There is small flap gasket.
8. compensation device in wet alarm valve according to claim 1, it is characterised in that: be provided in the middle part of flap for delaying
The cavity for pressure of washing by water, flap cavity are connected to water hole.
9. compensation device in wet alarm valve according to claim 8, it is characterised in that: the side of flap cavity is by pressing plate
Closing.
10. compensation device in wet alarm valve according to claim 1, it is characterised in that: flap is hinged with valve deck, valve deck
It is detachably connected with valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822170394.1U CN209213000U (en) | 2018-12-24 | 2018-12-24 | Compensation device in wet alarm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822170394.1U CN209213000U (en) | 2018-12-24 | 2018-12-24 | Compensation device in wet alarm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209213000U true CN209213000U (en) | 2019-08-06 |
Family
ID=67465753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822170394.1U Active CN209213000U (en) | 2018-12-24 | 2018-12-24 | Compensation device in wet alarm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209213000U (en) |
-
2018
- 2018-12-24 CN CN201822170394.1U patent/CN209213000U/en active Active
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