CN105498136A - Pressure stabilizing fire hydrant - Google Patents
Pressure stabilizing fire hydrant Download PDFInfo
- Publication number
- CN105498136A CN105498136A CN201510969334.4A CN201510969334A CN105498136A CN 105498136 A CN105498136 A CN 105498136A CN 201510969334 A CN201510969334 A CN 201510969334A CN 105498136 A CN105498136 A CN 105498136A
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- CN
- China
- Prior art keywords
- valve
- valve body
- choke block
- fire hydrant
- connecting rod
- Prior art date
- 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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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/20—Hydrants, e.g. wall-hoses, wall units, plug-in cabinets
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The application discloses a pressure stabilizing fire hydrant which comprises a valve body and a moving pressure stabilizing part. The valve body is provided with a water inlet part and a water outlet part. The inside diameter of the valve body at the water inlet part is reduced in the water inlet direction. The moving pressure stabilizing part is provided with a connecting rod, a throttle plate and elastic recovery devices. The connecting rod is arranged in the water inlet part in the water inlet direction. The throttle plate is connected with the connecting rod in a sliding manner. A first waterway is formed between the throttle plate and the inner wall of the valve body. The elastic recovery device is used for providing a recovery force for the throttle plate. The pressure stabilizing fire hydrant at least has the following beneficial effects that the throttling area of the first waterway formed between the throttle plate and the inner wall of the valve body changes with the sliding of the throttle plate; and when the water pressure becomes higher, the throttle plate is pushed to move, and the throttling area of the first waterway is reduced, but when the water pressure becomes lower, the elastic recovery device pushes the throttle plate to slide, and the throttling area of the first waterway is increased so as to meet the requirement that outlet water pressure is constant.
Description
Technical field
The disclosure relates generally to fire-fighting equipment, is specifically related to fire hydrant, particularly relates to and-regulated fire hydrant.
Background technology
Indoor fire hydrant be pipe network in house to delivery of water, be with valvular interface, can be used as the indoor fixed fire protection system such as factory, warehouse, skyscraper, public building, boats and ships, usually be arranged in fire hydrant box, support the use with the equipment such as fire hose and hydraulic giant.In use, the water outlet pressure of fire hydrant is too little, then can miss the best opportunity of fire suppression, cause irretrievable loss; If the water outlet pressure of fire hydrant is too large, very strong recoil strength will be formed to the fire fighter of hand-held fire-fighting lance, during fire fighter one man operation, there is very large potential safety hazard, therefore usually need many people cooperation to operate.
Because fire has sudden and urgent usually, in order to ensure that indoor fire hydrant can normally use in scene of fire, indoor fire hydrant has water and keeps certain hydraulic pressure between water inlet and delivery port to need the moment to ensure.
Summary of the invention
In view of above-mentioned defect of the prior art or deficiency, expect to provide a kind of and-regulated fire hydrant, comprising: valve body, have water entering section and outlet part, the valve block internal diameter at described water entering section place reduces along water inlet direction; Mobile voltage stabilizing part, there is connecting rod, choke block and elastic recovery device, described connecting rod is arranged in described water entering section along described water inlet direction, described choke block and described connecting rod are slidably connected, and described choke block and described valve interior wall form the first water channel, described elastic recovery device provides restoring force for described choke block.
And-regulated fire hydrant in the present invention, at least there is beneficial effect: the orifice size that choke block and valve interior wall form the first water channel changes along with the slip of choke block, hydraulic pressure becomes the large choke block that promotes and moves, first water channel orifice size reduces, and hydraulic pressure diminishes, elasticity and return mechanism promote choke block and slide, and the first water channel orifice size becomes large, thus it is constant to meet water outlet pressure.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, the other features, objects and advantages of the application will become more obvious:
Fig. 1 is the overall structure schematic diagram of and-regulated fire hydrant of the present invention;
Fig. 2 is the I place partial enlarged drawing of Fig. 1;
Fig. 3 is the schematic top plan view of choke block in and-regulated fire hydrant of the present invention;
Fig. 4 is that the master of choke block in and-regulated fire hydrant of the present invention looks sectional view;
Fig. 5 is the structural representation of valve rod in and-regulated fire hydrant of the present invention;
Fig. 6 is and-regulated fire hydrant pressure measxurement figure of the present invention.
Drawing reference numeral: 1-handwheel; 2-rotary valve pipe; 3-Pressure gauge; 4-valve rod; 5-valve gap cover; 6-flap; 7-valve seat; 9-fire hose coupling; 10-valve rod buckle; 12-buckle extension; 13-elastic recovery device; 14 fixators; 15-choke block; 16-valve stem nut; 17-handwheel locking cap; 18-valve gap; 19-valve bonnet seal part; 20-valve rod sealing member; 21-valve rod valve clack sealing ring; 24-connecting rod; The inwall of 25-water entering section place valve body; 26-extension; 151-opening; 152-connecting hole; 153-lug boss; 401-groove structure; 402-groove through hole; 403-hollow parts.
Detailed description of the invention
Below in conjunction with drawings and Examples, the application is described in further detail.Be understandable that, specific embodiment described herein is only for explaining related invention, but not the restriction to this invention.It also should be noted that, for convenience of description, illustrate only in accompanying drawing and invent relevant part.
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the application in detail in conjunction with the embodiments.
The present invention discloses a kind of and-regulated fire hydrant, comprise valve body see Fig. 1 and Fig. 2 and be arranged on the mobile voltage stabilizing part in valve body, wherein valve body has outlet part and water entering section, obvious water entering section supplies water to flow into, outlet part is that water is flowed out, and the valve block internal diameter at water entering section place reduces, namely on water inlet direction A as shown in Figure 1 along water inlet direction, the inwall 25 of water entering section place valve body is reduction, and the form of being somebody's turn to do " reduction " can have various ways; Can be such as the even reduction in Fig. 1 shown in B in one embodiment, and can be as reducing with the form of step surface in Fig. 1 shown in C in another kind of embodiment; Certainly also adopt the mode of several " reduction ", the mode of these " reductions " only illustrates as embodiment simultaneously.It should be noted that above-mentioned water inlet direction A can not regard as unique direction, can skew be there is in use, the direction of its indication is direction roughly, thinking that the trend in this direction is upwards, namely can be as shown by arrow A straight up, also can be in an inclined manner upwards.
Continue see Fig. 1 and Fig. 2, above-mentioned mobile voltage stabilizing part comprises connecting rod 24, choke block 15 and elastic recovery device 13, connecting rod 24 is arranged in water entering section along water inlet direction, choke block 15 and connecting rod 24 are slidably connected, choke block 15 can be slided along water inlet direction in water entering section, elastic recovery device 13 provides restoring force for choke block 15, and choke block 15 and valve interior wall form the first water channel.
Conveniently understand, illustrate during to use, during use, current flow out from water entering section inflow valve body from outlet part, the water jet propulsion choke block 15 of water entering section moves, namely hydraulic pressure makes choke block 15 move along connecting rod 24, and because water entering section inwall reduces on water inlet direction, the therefore orifice size of the first water channel that formed of choke block 15 and valve interior wall, understands and change along with the motion of choke block 15.Now the distance that moves up in water inlet side of the larger choke block of hydraulic pressure 15 is larger, and the orifice size of the first water channel will be less; The distance that the less choke block of hydraulic pressure 15 moves up in water inlet side is less, and the orifice size of the first water channel will be larger.Certainly, in hydraulic pressure process from large to small, elastic recovery device 13 provides restoring force for choke block, makes it become large direction to the first water channel orifice size and moves.Optionally, this elastic recovery device 13 can be spring.In one embodiment, connecting rod 24 can be arranged at valve body, and elastic recovery device is arranged between described choke block and described valve body.Such as can arrange radial bars in the water entering section of valve body, what connecting rod 24 was vertical is arranged on radial bars.
In the optional embodiment of one, also include valve rod 4 and flap 6, wherein valve rod 4 through valve body movably, and and airtight between valve body, flap 6, is sheathed on outside valve rod 4 hermetically, and conducting or closed current flow into outlet part from water entering section.This valve rod 4 and flap 6 constitute " switch " of and-regulated fire hydrant of the present invention, and such as flap 6 can be driven to move by the rotation of valve body, conducting water entering section and outlet part, namely open and-regulated fire hydrant, makes it work; Otherwise, close water entering section and outlet part, then close and-regulated fire hydrant.In one embodiment, the one end in the first bar portion is provided with the handwheel 1 of regulating valve stem 4 rotation, and handwheel 1 is arranged on the top of the valve rod exposed from valve body by handwheel locking cap 17, to realize above-mentioned functions.
Certainly, valve seat 7 can also be had in the application, be arranged at bottom flap 6, and it is protruding, in valve body can with there is extension 26, this extension 26 extends radially along valve interior wall, and flap 6 can be pressed on lug boss, and can be mutually airtight with extension 26, such as sealing gasket is set bottom valve seat 7.
In order to the connection of flap and valve rod is tight, after sheathed flap, arrange valve rod buckle 10 in the bottom of the valve rod exposed from flap, generally this valve rod opening is arranged on bottom scheme and prevents flap from coming off.Valve rod buckle 10 has through hole, is set on valve rod, is positioned at below flap.
In the optional embodiment of one, above-mentioned connecting rod is arranged at valve rod bottom, and elastic recovery device is arranged between choke block and described valve rod.
Valve body is provided with valve stem nut 16, the corresponding position of valve rod has external screw thread, and external screw thread coordinates with valve stem nut 16, valve rod is rotated in a body, because be threaded engagement, be that valve rod moves up and down with flap in a body, thus realize the function of above-mentioned " switch ".
Water entering section or connecting rod are provided with the positioner to choke block, to prevent choke block by the unconfined promotion of larger hydraulic pressure.As shown in Figure 2, above-mentioned extension, can also as this positioner except for coordinating with valve seat.Certainly, choke block can not because of with stretch out contact after just block current completely, specifically can see the explanation of choke block structure below.
See Fig. 3 and Fig. 4, choke block is disc, and center has the connecting hole 152 be slidably connected with connecting rod, in choke block periphery, is formed and is equally spacedly formed with multiple opening 151.Certainly, this opening 151 just can ensure can not because of with stretch out contact after just block current completely.In the optional embodiment of one, connecting hole 152 place that choke block and connecting rod are slidably connected, form lug boss 153 around described connecting hole, described elastic recovery device is spring, and one end of spring is sheathed on outside lug boss 153.The other end of spring can be clasped with above-mentioned valve rod, concrete, and above-mentioned valve rod buckle also can have the through hole edge along being sheathed on valve rod, and the buckle extension 12 extended along valve rod direction, the spring other end can be set in this buckle extension 12.Buckle extension 12 secures spring, and simultaneously the pretightning force of spring also fastens valve rod buckle and the sheathed strong degree of valve rod, improves its crystallized ability to flap.
In order to make choke block and connecting rod stable connection, have fixator 14, this fixator 14 can be nut, is tightened in from the connecting rod that choke block stretches out.
The following describes the structure such as valve rod, valve gap 18, see Fig. 5, the valve body of the fire hydrant that the present invention is above-mentioned has valve gap 18, the through valve gap 18 of valve rod; Valve gap 18 has the valve gap through hole (not shown) for being communicated with Pressure gauge 3, and valve gap has valve gap cover 5, and valve gap cover 5 forms the inwall of described valve gap, described valve gap cover 5 has the valve gap cover through hole 501 being communicated with described valve gap through hole; Valve rod comprises the first bar portion and the second bar portion from top to bottom, and the second bar portion is hollow-core construction; The outer wall of valve rod is formed closure gasket groove structure 401, there is in groove structure 401 the groove through hole 402 be communicated with the hollow-core construction in the second bar portion.Hollow parts 403 and the groove through hole in the second bar portion form valve rod water channel, certainly work as valve rod and move, the cell wall of annular groove and the hollow-core construction in the second bar portion to time corresponding then valve rod water channel close.
Above-mentioned valve gap and valve body can be integrative-structures, also can be Split type structures, for during Split type structure in order to ensure seal, valve bonnet seal part 19 is set between valve gap and valve body.
Particularly, valve gap overlaps 5 and coaxial is arranged in valve gap, logical structure during valve gap and valve gap cover 5 have respectively, as shown in the figure, the outside of valve gap offers Pressure gauge hole, hole is provided with Pressure gauge with Pressure gauge, valve gap cover 5 offers the valve gap be communicated with Pressure gauge hole and overlaps through hole 501, with mineralization pressure table water channel between valve gap cover through hole and Pressure gauge hole.Pressure gauge can be but is not limited to dial type Pressure gauge or digital pressure gauge etc.Valve gap cover through hole can lower than Pressure gauge hole, or valve gap cover through hole can be concordant with Pressure gauge hole etc.Also for ease of guarantee airtight, between valve rod and valve gap overlap, valve rod sealing member 20 is set.Certainly, between flap and valve rod, also valve rod valve clack sealing ring 21 to be set.
In figure unmarked go out Pressure gauge hole outside valve gap, but the position in this Pressure gauge hole can be found out from the position of Pressure gauge 3 and valve gap cover through hole 501.
When above-mentioned valve flap seals water entering section and outlet part, the hollow parts 403 in the second bar portion of valve rod is communicated with groove through hole, and now Pressure gauge can show static hydraulic pressure; When above-mentioned valve flap seals water entering section and outlet part, what Pressure gauge showed is dynamic water-pressure.
Optionally, fire hydrant also comprises base and fire hose coupling 9 (hereinafter referred to as interface 9); Base is all fixedly connected with described valve body is dismountable with described fire hose coupling 9, and described base is connected to outside described water entering section, and described fire hose coupling is connected to outside described outlet part; Described valve body and described base junction are provided with the first sealing ring; Described valve body and described fire hose coupling 9 junction are provided with the second sealing ring.Above-mentioned fire hose coupling can form the outer wall of outlet part, and it can be outwardly, and can rotate along Pivot Point Center relative to valve body, to facilitate installation water-band.Rotate can arrange rotary valve pipe 2 between interface and valve body to realize above-mentioned fire hose coupling eye Pivot Point Center, rotary valve pipe 2 is tubulose, and one end of tubulose and valve body are rotatable to be airtightly connected, and the other end stretches out be connected airtight with interface.
Preferably, the long 150-180mm of above-mentioned valve rod, annular groove wall thickness 1.5-2.5mm outstanding in groove structure, the width of annular groove is at 2.5-3.5mm.The external diameter that valve rod is maximum, namely the maximum outside diameter at annular groove wall place is 19-23mm; The inner diameter of water entering section is 70-75mm to the maximum, and along with the reduction along water inlet direction internal diameter, inner diameter is minimum is 48-52mm, and the minimum diameter mentioned here refers to water entering section place, and is not used in other structures such as representing extension; The coverage that choke block slides is 50-75mm, and coverage refers to the distance that can change the first water channel orifice size.
Lower list 1 shows the fire hydrant of the application and the detection comparing table of prior art fire hydrant water outlet hydraulic pressure:
As can be seen from Table 1, the pressure reduction that substantially all may realize influent pressure and water outlet pressure at the fire hydrant of low-pressure area the application and prior art is lower, water outlet pressure can not be too small, and therefrom nip and higher-pressure region just can significantly be found out, the fire hydrant water outlet pressure of prior art obviously increases, and voltage regulation result is not obvious.Voltage stabilizing pressure voltage stabilizing bolt of the present invention:
During low pressure intake pressure 0.03-0.1MPa, pressure loss 0.01-0.02MPa; During pressure 0.1-0.2MPa, pressure loss 0.02-0.03MPa; Time hydraulic pressure is low, pressure reduction is little, ensures extinguishing effect.
In when compressing into water pressure 0.2-0.40MPa, pressure guarantees 0.22.-0.33MPa; This section of pressure is fire extinguishing optimum pressure, ensures extinguishing effect.
During high-pressure water inlet pressure 0.4-0.8MPa, 0.25-0.35MPa ensures the best hydraulic pressure of fire extinguishing, improves effect.
Ministry of Public Security National Standard of the People's Republic of China GB3445-2005 specifies, intake pressure guarantees discharge pressure 0.25-0.35MPa at 0.4-0.8MPa.
Be hydrant pressure survey map of the present invention see Fig. 6.
Table 1
More than describe and be only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art are to be understood that, invention scope involved in the application, be not limited to the technical scheme of the particular combination of above-mentioned technical characteristic, also should be encompassed in when not departing from described inventive concept simultaneously, be undertaken being combined by above-mentioned technical characteristic or its equivalent feature and other technical scheme of being formed.The technical characteristic that such as, disclosed in above-mentioned feature and the application (but being not limited to) has similar functions is replaced mutually and the technical scheme formed.
Claims (8)
1. an and-regulated fire hydrant, is characterized in that, comprising:
Valve body, has water entering section and outlet part, and the valve block internal diameter at described water entering section place reduces along water inlet direction;
Mobile voltage stabilizing part, there is connecting rod, choke block and elastic recovery device, described connecting rod is arranged in described water entering section along described water inlet direction, described choke block and described connecting rod are slidably connected, and described choke block and described valve interior wall form the first water channel, described elastic recovery device provides restoring force for described choke block.
2. and-regulated fire hydrant according to claim 1, is characterized in that, also comprises:
Valve rod, movably through described valve body, and and airtight between described valve body;
Flap, is sheathed on outside described valve rod hermetically, and conducting or closed current flow into outlet part from water entering section;
Described connecting rod is arranged at described valve rod bottom, states elastic recovery device and is arranged between described choke block and described valve rod; Or,
Described connecting rod is arranged at described valve body, and described elastic recovery device is arranged between described choke block and described valve body.
3. and-regulated fire hydrant according to claim 1 and 2, is characterized in that,
In described water entering section, be formed with the positioner that described choke block is located, or, described connecting rod is formed the positioner of locating described choke block.
4. and-regulated fire hydrant according to claim 1, is characterized in that,
Described choke block is disc, and center has the connecting hole be slidably connected with described connecting rod, in described choke block periphery, is formed and is equally spacedly formed with multiple opening.
5. and-regulated fire hydrant according to claim 1, is characterized in that,
Described choke block has the connecting hole be slidably connected with described connecting rod, forms lug boss around described connecting hole;
Described elastic recovery device is spring, is sheathed on outside described lug boss.
6. and-regulated fire hydrant according to claim 2, is characterized in that,
Described valve body has valve gap, the through described valve gap of described valve rod;
Described valve gap has for being communicated with manometric valve gap through hole, and described valve gap has valve gap cover, and described valve gap cover forms the inwall of described valve gap, and described valve gap puts the valve gap cover through hole having and be communicated with described valve gap through hole;
Described valve rod comprises the first bar portion and the second bar portion from top to bottom, and described second bar portion is hollow-core construction;
The outer wall of described valve rod is formed closure gasket groove structure, there is in described groove structure the groove through hole be communicated with the hollow-core construction in described second bar portion.
7. and-regulated fire hydrant according to claim 2, is characterized in that,
The one end in described first bar portion is exposed from described valve gap, is provided with the handwheel regulating described valve rod to rotate in this one end of exposing.
8. according to claim 1,2, and-regulated fire hydrant described in any one of 4-7, it is characterized in that,
Also comprise base and fire hose coupling;
Described base and described fire hose coupling are all fixedly connected with described valve body is dismountable, and described base is connected to outside described water entering section, and described fire hose coupling is connected to outside described outlet part;
Described valve body and described base junction are provided with the first sealing ring;
Described valve body and described fire hose coupling junction are provided with the second sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510969334.4A CN105498136A (en) | 2015-12-21 | 2015-12-21 | Pressure stabilizing fire hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510969334.4A CN105498136A (en) | 2015-12-21 | 2015-12-21 | Pressure stabilizing fire hydrant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105498136A true CN105498136A (en) | 2016-04-20 |
Family
ID=55706676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510969334.4A Pending CN105498136A (en) | 2015-12-21 | 2015-12-21 | Pressure stabilizing fire hydrant |
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| Country | Link |
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| CN (1) | CN105498136A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107050721A (en) * | 2017-03-29 | 2017-08-18 | 湖南高福星智能科技有限公司 | A kind of fire hydrant of Antivibration leak-proof water |
| CN113236787A (en) * | 2021-04-13 | 2021-08-10 | 杭州宇良科技有限公司 | Horizontal rotary pressure-reducing and pressure-stabilizing fire hydrant and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4284099A (en) * | 1979-04-30 | 1981-08-18 | Rifat Sultan A | Frost-proof fire hydrant |
| CN2440846Y (en) * | 2000-09-11 | 2001-08-01 | 北京海淀普惠机电技术开发公司 | pressure reducing and stabilizing hydraut key |
| CN102921135A (en) * | 2012-06-01 | 2013-02-13 | 江苏龙力神精工科技有限公司 | Pressure adjustment and stabilization type indoor hydrant |
| CN203886084U (en) * | 2014-05-20 | 2014-10-22 | 天广消防股份有限公司 | Novel pressure reducing and stabilizing type indoor fire hydrant |
| CN205516130U (en) * | 2015-12-21 | 2016-08-31 | 江苏龙力神精工科技有限公司 | Steady voltage fire hydrant |
-
2015
- 2015-12-21 CN CN201510969334.4A patent/CN105498136A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4284099A (en) * | 1979-04-30 | 1981-08-18 | Rifat Sultan A | Frost-proof fire hydrant |
| CN2440846Y (en) * | 2000-09-11 | 2001-08-01 | 北京海淀普惠机电技术开发公司 | pressure reducing and stabilizing hydraut key |
| CN102921135A (en) * | 2012-06-01 | 2013-02-13 | 江苏龙力神精工科技有限公司 | Pressure adjustment and stabilization type indoor hydrant |
| CN203886084U (en) * | 2014-05-20 | 2014-10-22 | 天广消防股份有限公司 | Novel pressure reducing and stabilizing type indoor fire hydrant |
| CN205516130U (en) * | 2015-12-21 | 2016-08-31 | 江苏龙力神精工科技有限公司 | Steady voltage fire hydrant |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107050721A (en) * | 2017-03-29 | 2017-08-18 | 湖南高福星智能科技有限公司 | A kind of fire hydrant of Antivibration leak-proof water |
| CN113236787A (en) * | 2021-04-13 | 2021-08-10 | 杭州宇良科技有限公司 | Horizontal rotary pressure-reducing and pressure-stabilizing fire hydrant and using method thereof |
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Application publication date: 20160420 |
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