CN203886084U - Novel pressure reducing and stabilizing type indoor fire hydrant - Google Patents
Novel pressure reducing and stabilizing type indoor fire hydrant Download PDFInfo
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- CN203886084U CN203886084U CN201420258246.4U CN201420258246U CN203886084U CN 203886084 U CN203886084 U CN 203886084U CN 201420258246 U CN201420258246 U CN 201420258246U CN 203886084 U CN203886084 U CN 203886084U
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- pressure
- fire hydrant
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- indoor fire
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Abstract
The utility model disclosed a novel pressure reducing and stabilizing type indoor fire hydrant. The pressure reducing and stabilizing device of the indoor fire hydrant mainly comprises a locating block, a moving block, a fixed block and a spring, wherein the locating block and the fixed block are arranged side by side in the inside-and-outside direction, the moving block can be movably arranged in the locating block, the moving block is provided with a movable flange, the locating block is provided with a locating flange which is located at the inner side of the movable flange, the spring elastically props against the outer side of the movable flange and the inner side of the fixed block, the fixed block is extended towards the inner side and provided with a check block part, and a flow channel is formed between the check block part and the moving block, can move outwards along with the moving block and has gradually reduced flow section area. By virtue of the novel pressure reducing and stabilizing type indoor fire hydrant, thrust which enables the flow section area to be reduced is from a pressure of a water inlet; the stronger the thrust is, the longer the route of the moving block is, so that the pressure reduction range is wider, and therefore the allowed pressure range of the water inlet is wider. Furthermore, a pressure of a water outlet can always be stabilized in an ideal using range, and compared with the prior art, the novel pressure reducing and stabilizing type indoor fire hydrant has the advantage that the fluctuating value of the pressure of the water outlet is decreased obviously.
Description
Technical field
The utility model relates to fire-fighting equipment technical field, specifically refers to a kind of Novel pressure-reducing voltage regulation type indoor fire hydrant.
Background technology
Indoor fire hydrant is the facility of pipe network in house to delivery of water, is the equipment of the fire fighting supplies such as factory, warehouse, skyscraper, public place and boats and ships.Conventionally be arranged in fire hydrant box, support the use with the equipment such as fire hose, hydraulic giant.In the time having fire alarm, open rapidly fire hydrant box, take out water band, hydraulic giant, water band one end is connected on the fire coupling of fire hydrant, the other end is connected with hydraulic giant, immediately fire hydrant handwheel is pressed to counterclockwise Unscrew, can sprinkling fire.But because of various situation difference, cause the source pressure and the flow that penetrate from general room fire hydrant to be had nothing in common with each other, height changes large, and fire extinguishing personnel are difficult to operation, impact fire extinguishing effect.Therefore, pressure-reduced and-regulated type indoor fire hydrant is just widely used, pressure-reduced and-regulated type indoor fire hydrant refers in valve body or valve body entery and delivery port arranges automatic throttling gear, rely on the energy of medium itself, change the area of holding back of throttling arrangement, water inlet pressure in prescribed limit is reduced to the delivery port pressure of a certain needs, and make delivery port pressure automatically keep stable indoor fire hydrant.
Pressure-reduced and-regulated type indoor fire hydrant on existing market all can only reach I level effect substantially, and water inlet pressure can only allow 0.4MPa～0.8MPa, and voltage regulation performance is good not, and fluctuation range is larger.As provided common a kind of pressure-reduced and-regulated type indoor fire hydrant at present in Fig. 1, its pressure-reduced and-regulated device mainly comprises fixed block 1', movable block 2', latch segment 3' and spring 4'.Operation principle is in the time that water inlet pressure exceedes 0.4MPa, the Water Pressure that flows out delivery port will be greater than the precompression of spring 4' in the power of movable block 2' outer face, promote movable block 2' to fire hydrant inner side (in figure left to) mobile, make movable block 2' block gradually the circulating window 11' of fixed block 1', actual internal area reduces, and hydraulic pressure reduces.But because the water inlet hydraulic pressure of pressure-reduced and-regulated type indoor fire hydrant is larger, delivery port hydraulic pressure is less, thereby it is less to the power of fire hydrant medial movement to promote movable block 2', displacement is shorter, and the scope that can reduce pressure is just narrower, and the authorized pressure scope of water inlet is just less.
Separately, the circulating window 11' of above-mentioned common pressure-reduced and-regulated type indoor fire hydrant is the window that cross section is vertical shape, this structure can not be sensitive the increase along with water inlet hydraulic pressure reduce required actual internal area, because not being the minimizing that is simply linear scale along with the increase of water inlet pressure, actual internal area just can make delivery port pressure stability within the scope of ideal value, so the water pressure fluctuations scope of this pressure-reduced and-regulated type indoor fire hydrant delivery port is larger.
Utility model content
The purpose of this utility model is to provide a kind of Novel pressure-reducing voltage regulation type indoor fire hydrant, can overcome the less problem of authorized pressure scope of water inlet in prior art, can also make further water pressure fluctuations scope obviously reduce compared to existing technology, improving performance stability.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of Novel pressure-reducing voltage regulation type indoor fire hydrant, comprises the pressure-reduced and-regulated device that is located at valve body water side place, and this pressure-reduced and-regulated device mainly comprises locating piece, movable block, fixed block and spring; In described valve body water side with along water outlet direction for direction from the inside to the outside, inside and outside being, described locating piece and fixed block be arranged side by side, described movable block is arranged in described locating piece movably, this movable block is provided with loose flange, and described locating piece is provided with the locating flange that is positioned at described loose flange inner side; Described spring supports in described loose flange outside and described fixed block inner side; Described fixed block extends and is provided with a stopper portions toward inner side, between this stopper portions and described movable block, forms and has one with this movable block little circulation road of mobile flow area gradual change outward.
Described stopper portions is the mushroom head block that an outline is evagination camber line flaring footpath from the inside to the outside.
Between the inwall of the inner of described locating piece and valve body water side, be provided with sealing gasket.
Between described locating piece and movable block, be provided with sealing ring.
Adopt after such scheme, this Novel photo is for the beneficial effect of prior art: when work, press water flows into from indoor fire hydrant water inlet, after pressure-reduced and-regulated device, flows out from delivery port.In the time that pressure exceedes certain value (such as 0.4Mpa), active force movable block being produced through the hydraulic pressure of pressure-reduced and-regulated device, by being greater than the precompression of Compress Spring generation, promotes movable block side shifting outside fire hydrant, and actual internal area reduces.Actual internal area reduces gradually along with the increase gradually of water inlet pressure, and delivery port hydraulic pressure is reduced within the scope of ideal value all the time.Otherwise in the time that water inlet hydraulic pressure decreases, actual internal area increases gradually along with the reduction of water inlet pressure, delivery port hydraulic pressure is stabilized within the scope of ideal value all the time, until water inlet pressure decreased is less than described certain value (such as 0.4Mpa), spring promotes movable block to original initial alignment position.Known, the power that this Novel pressure-reducing voltage regulation type indoor fire hydrant promotion actual internal area reduces is the pressure of water inlet, and thrust is larger, and movable block stroke is larger, and the scope that can reduce pressure is just wider, thereby the authorized pressure scope of water inlet is just wider.
Further, this novel curved line relation of also having specialized in complexity between water inlet pressure and actual internal area, stopper portions is designed to the mushroom head block that an outline is evagination camber line flaring footpath from the inside to the outside, making thus actual internal area is not the change that is simply linear scale along with the rectilinear motion of movable block, but sexually revises along with the variation of water inlet pressure is required sensitive curve.Thus in changeable each water inlet force value, actual internal area neither can change too much, also can not change very little, prevent that delivery port pressure change from obtaining too many or not enough problem, thereby make delivery port pressure all-the-time stable in the desirable scope of application, undulating value obviously reduces compared to existing technology.
Brief description of the drawings
Fig. 1 is the structural representation of existing pressure-reduced and-regulated type indoor fire hydrant;
Fig. 2 is the structural representation of this Novel pressure-reducing voltage regulation type indoor fire hydrant.
Label declaration
Fixed block 1' circulating window 11'
Movable block 2' latch segment 3'
Spring 4'
Locating piece 1 locating flange 11
Fixed block 2 stopper portions 21
Movable block 3 loose flanges 31
Spring 4 circulation roads 5
Sealing gasket 6 sealing rings 7
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this case is described in further detail.
This case relates to a kind of Novel pressure-reducing voltage regulation type indoor fire hydrant, as shown in Figure 2, comprises the pressure-reduced and-regulated device that is located at valve body water side place, and this pressure-reduced and-regulated device mainly comprises locating piece 1, fixed block 2, movable block 3 and spring 4.
In described valve body water side with along water outlet direction (direction of arrow in figure) for direction from the inside to the outside.Inside and outside being, locating piece 1 and fixed block 2 be arranged on side by side in valve body water side.Movable block 3 is arranged in locating piece 1 movably, and this movable block 3 comprises body and is convexly equipped with the loose flange 31 on this body lateral wall.Locating piece 1 is provided with the locating flange 11 that is positioned at loose flange 31 inner sides, spacing to loose flange 31 from inner side by this locating flange 11, with this restraint piece 3 can be toward medial displacement scope.Spring 4 flexibly supports in loose flange 31 outsides and fixed block 2 inner sides.Fixed block 2 extends and is provided with a stopper portions 21 toward inner side, and between this stopper portions 21 and movable block 3, formation has a circulation road 5, and this circulation road 5 is little with mobile its flow area gradual change outward of this movable block 3.Realizing the little frame mode of this gradual change has multiplely, such as the external port of movable block 3 is the bell mouth shape toward outside flaring footpath, in specific embodiment, stopper portions 21 is designed to toward the stopper structure in flaring footpath, outside.
When work, rotation hand wheel is opened flap, and press water flows into from indoor fire hydrant water inlet, after pressure-reduced and-regulated device, flows out from delivery port.In the time that pressure exceedes 0.4MPa, active force movable block 3 being produced through the hydraulic pressure of pressure-reduced and-regulated device is by the precompression that is greater than Compress Spring 4 and produces, promote movable block 3 mobile to fire hydrant outside (right in figure), the actual internal area of circulation road 5 reduces.Along with the increase gradually of water inlet pressure, spring 4 will be thereupon compressed gradually, water pressure pushing movable block 3 is side shifting outside fire hydrant always, and actual internal area is reduced gradually along with the increase gradually of water inlet pressure, and delivery port hydraulic pressure is reduced within the scope of ideal value all the time.Due to spring 4 be increase along with water inlet pressure and compressed gradually, the thrust of Water Pressure on movable block 3 equates with the elastic force of Compress Spring 4 all the time.In the time that water inlet hydraulic pressure decreases, the thrust of Water Pressure on movable block 3 by moment be less than Compress Spring 4 elastic force and cannot pressing spring 4, be subject to the effect of spring force, movable block 3 to fire hydrant inner side (in figure left to) mobile, the actual internal area of circulation road 5 increases, along with the reduction gradually of water inlet pressure, movable block 3 by under the effect of spring force gradually to fire hydrant medial movement, actual internal area increases gradually along with the reduction of water inlet pressure, delivery port hydraulic pressure is stabilized within the scope of ideal value all the time, until water inlet pressure decreased is less than 0.4MPa, spring 4 promotes movable block 3 to original initial alignment position (position as shown in Figure 2).
And this Novel pressure-reducing voltage regulation type indoor fire hydrant can reach II level, water inlet pressure allows to reach 0.4MPa～1.2MPa, delivery port pressure can automatically regulate and be stabilized within the scope of 0.27MPa～0.32MPa, meets the requirement of 0.25MPa～0.35MPa that GB3445-2005 " indoor fire hydrant " standard specifies.
Further, as shown in Figure 2, described stopper portions 21 is the mushroom head block that an outline is evagination camber line flaring footpath from the inside to the outside.The actual internal area that makes thus circulation road 5 is not the change that is simply linear scale along with the rectilinear motion of movable block 3, but sexually revises along with the variation of water inlet pressure is required sensitive curve.Thus in changeable each water inlet force value, actual internal area neither can change too much, also can not change very little, prevent that delivery port pressure change from obtaining too many or not enough problem, thereby make delivery port pressure all-the-time stable in the desirable scope of application, undulating value obviously reduces compared to existing technology.
Preferably, between the inwall of the inner of described locating piece 1 and valve body water side, be provided with sealing gasket 6, strengthen the two sealing with this.In like manner, between locating piece 1 and movable block 3, be provided with sealing ring 7, be provided with seal groove particularly in locating piece 1, sealing ring 7 is O RunddichtringO, and it is interior and inconsistent with movable block 3 that it is embedded in seal groove.The assembling of pressure-reduced and-regulated device is very convenient, first, sealing gasket 6 is positioned in the bottom plane in valve body water side; Afterwards, sealing ring 7 is packed in the seal groove of locating piece 1, then movable block 3 is packed in locating piece 1 by direction as shown; Then, the assembly of locating piece 1 and movable block 3 is packed in valve body, reinstall spring 4, be positioned on the spring locating surface of movable block 3; Finally, fixed block 2 is locked on valve body with instrument, forms complete pressure-reduced and-regulated device.With this, this Novel pressure-reducing stable-pressure device have install and use easy to maintenance, long service life advantage.
Have, it is low that this Novel pressure-reducing voltage regulation type indoor fire hydrant also has production cost again, and parts are simple, and handling ease is easy to assembly, and compatibility is good.The pressure-reduced and-regulated device of common pressure-reduced and-regulated type indoor fire hydrant also need with outside other parts interact just can make fire hydrant normally work (if any the fire coupling of pressure-reduced and-regulated type indoor fire hydrant need be sealed on pressure-reduced and-regulated device), once these need dismounting and change with the damage parts that pressure-reduced and-regulated device matches, the pressure-reduced and-regulated performance that makes fire hydrant is affected, and while replacing, also need to such an extent that notice that the part of changing must be able to coordinate with pressure-reduced and-regulated device, otherwise fire hydrant cannot normally be worked.And the pressure-reduced and-regulated device of this Novel pressure-reducing voltage regulation type indoor fire hydrant is only arranged on valve body, can not produce and interfere with other parts, in the time having damage of components to change, all can not have influence on the performance of pressure-reduced and-regulated device, and other parts the no requirement (NR) of pressure-reduced and-regulated device to outside, can additionally not increase cost.
In addition, this Novel pressure-reducing voltage regulation type indoor fire hydrant can carry out expanded application.This Novel pressure-reducing voltage regulation type indoor fire hydrant has been realized the pressure-reduced and-regulated function of general room fire hydrant, no matter inlet pressure height is different, pipe network internal pressure produces fluctuation and changes, its outlet pressure all can pressure-reduced and-regulated in desirable working pressure value, thereby in engineering design without calculating, when installation, need not debug.And in the time that valve body bottom increases whirligig, also can realize rotating pressure-decreasing voltage regulation type indoor fire hydrant, also two pressure-reduced and-regulated devices can be contained on bivalve twin valve body, the two outlet of composition bivalve pressure-reduced and-regulated type indoor fire hydrant, therefore the utlity model has higher expansion and practicality, market prospects are wide.
The foregoing is only this novel preferred embodiment, all equalizations of doing with this novel claim scope change and modify, and all should belong to the scope of this novel claim.
Claims (4)
1. a Novel pressure-reducing voltage regulation type indoor fire hydrant, comprises the pressure-reduced and-regulated device that is located at valve body water side place, it is characterized in that: this pressure-reduced and-regulated device mainly comprises locating piece, movable block, fixed block and spring; In described valve body water side with along water outlet direction for direction from the inside to the outside, inside and outside being, described locating piece and fixed block be arranged side by side, described movable block is arranged in described locating piece movably, this movable block is provided with loose flange, and described locating piece is provided with the locating flange that is positioned at described loose flange inner side; Described spring supports in described loose flange outside and described fixed block inner side; Described fixed block extends and is provided with a stopper portions toward inner side, between this stopper portions and described movable block, forms and has one with this movable block little circulation road of mobile flow area gradual change outward.
2. a kind of Novel pressure-reducing voltage regulation type indoor fire hydrant as claimed in claim 1, is characterized in that: described stopper portions is the mushroom head block that an outline is evagination camber line flaring footpath from the inside to the outside.
3. a kind of Novel pressure-reducing voltage regulation type indoor fire hydrant as claimed in claim 1, is characterized in that: between the inwall of the inner of described locating piece and valve body water side, be provided with sealing gasket.
4. a kind of Novel pressure-reducing voltage regulation type indoor fire hydrant as claimed in claim 1, is characterized in that: between described locating piece and movable block, be provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420258246.4U CN203886084U (en) | 2014-05-20 | 2014-05-20 | Novel pressure reducing and stabilizing type indoor fire hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420258246.4U CN203886084U (en) | 2014-05-20 | 2014-05-20 | Novel pressure reducing and stabilizing type indoor fire hydrant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203886084U true CN203886084U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420258246.4U Expired - Fee Related CN203886084U (en) | 2014-05-20 | 2014-05-20 | Novel pressure reducing and stabilizing type indoor fire hydrant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203886084U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498136A (en) * | 2015-12-21 | 2016-04-20 | 江苏龙力神精工科技有限公司 | Pressure stabilizing fire hydrant |
| CN108331090A (en) * | 2017-12-21 | 2018-07-27 | 白沙消防设备有限公司 | A kind of multi-functional outdoor fire hydrant |
-
2014
- 2014-05-20 CN CN201420258246.4U patent/CN203886084U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498136A (en) * | 2015-12-21 | 2016-04-20 | 江苏龙力神精工科技有限公司 | Pressure stabilizing fire hydrant |
| CN108331090A (en) * | 2017-12-21 | 2018-07-27 | 白沙消防设备有限公司 | A kind of multi-functional outdoor fire hydrant |
| CN108331090B (en) * | 2017-12-21 | 2023-12-08 | 白沙消防设备有限公司 | Multifunctional outdoor hydrant |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20170520 |
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| CF01 | Termination of patent right due to non-payment of annual fee |