CN105971069B - A kind of anti-freezing hydrant - Google Patents
A kind of anti-freezing hydrant Download PDFInfo
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- CN105971069B CN105971069B CN201610517876.2A CN201610517876A CN105971069B CN 105971069 B CN105971069 B CN 105971069B CN 201610517876 A CN201610517876 A CN 201610517876A CN 105971069 B CN105971069 B CN 105971069B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
- E03B9/14—Draining devices for hydrants
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- Hydrology & Water Resources (AREA)
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Abstract
The present invention relates to fire-fighting equipment technical field, more particularly, to a kind of anti-freezing hydrant, including lower valve body and the first valve rod；Lower valve body has lower valve chamber and uuper valve chamber, and uuper valve chamber is connected with lower valve chamber；First valve rod runs through uuper valve chamber and lower valve chamber, and the first valve rod is provided with flap mechanism, for controlling the break-make between lower valve chamber and uuper valve chamber；The inside of first valve rod has along its first axially extending axial drain chamber, the first axial drain chamber and has venturi jet portion, for making the liquid in uuper valve chamber enter the first axial drain chamber.The problem of water that the present invention not only solves in fire hydrant is frozen, completely avoid simultaneously it is existing under unload water anti-freeze type and underground installation anti-freeze type fire hydrant defect and deficiency, improve the reliability that fire hydrant supplies water under cold climate conditions, and the decompression voltage regulation function and collision prevention function of fire hydrant are taken into account, while has had and installs and uses the characteristics of simple and convenient.
Description
Technical field
The present invention relates to fire-fighting equipment technical field, more particularly, to a kind of anti-freezing hydrant.
Background technology
Outdoor fire hydrant is to ensure urban fire control essential part safely, but largely tight in northern China
Cold area such as Inner Mongol the north and Heilongjiangdistrict, because winter temperature is relatively low, fire hydrant is in the product for using or testing in back cavity
The water closure that can freeze can not use, and cause fire fighting supply to be paralysed, cause serious life and property loss.Therefore fire hydrant is antifreeze
Work particularly important.
China's outdoor fire hydrant mainly has two kinds of forms at present, is mounted directly is installed with missile silo formula on the ground.And for two
Kind installation form, it is all to be provided with auto-drainage device built in conventional fire hydrant at outlet valve to solve antifreeze form, when built-in
Ponding after outlet valve is closed in automatic evacuation fire hydrant.The ponding in fire hydrant being mounted directly on the ground then flows directly in advance
It is reinfiltrated into embedded underground cobble hole inside soil；And the ponding in the fire hydrant of missile silo formula installation then flows directly to well
It is interior.
Although the fire hydrant of two kinds of installation forms has automatic drainage emptier, but still have many problems at present.
1st, due to northern China, much regional level of ground water is higher, and ability of swimming anti-freezing hydrant is unloaded under causing to be emptied completely
Ponding, fire hydrant still suffers from the problem of ponding freezes during winter severe cold weather.
2nd, no matter up and down unload ability of swimming and missile silo formula installation anti-freezing hydrant drainage arrangement in underground, key inner product
Water emptying situation can not be seen on the ground, can not be known whether key internal water accumulation empties, be added by freeze-up risk.Separately
It can not be found to waste great lot of water resources in time when fire hydrant valve portion leaks outside.
3rd, no matter on the ground or missile silo formula installation fire hydrant installation when need to build larger Underground well chamber excavation amount
Greatly, and using when fireman need water receiving in well, it is very inconvenient.It is certain that above and below ground mounting means is required to appropriate landfill
The a range of cobble of quantity, construction cost are high, long in time limit.
4th, because many underground installation form Zhong Jing rooms are brick and concrete structure, it is closed more difficult that well arm easily seeps water,
So " summer suffers from cold by water logging winter " is the consistent common fault of missile silo formula fire hydrant.Particularly wind and snow day fire hydrant well head is by heavy snow
Covering is difficult to find to delay the fire fighting time.
Although the 5, also there is many areas to solve the excretion of ponding using steel formula well, cost is at a relatively high, and still face
The problem of facing the steel body corrosion of long-time well room.
In addition, also occur a kind of solution by the external water plug of fire hydrant at present, but the method cost is high, behaviour
Work is relatively miscellaneous, and popularization difficulty is big.
The content of the invention
It is an object of the invention to provide a kind of novel anti-freezing fire hydrant, to solve to exist in existing anti-freezing hydrant design
Disadvantage.
Before outdoor anti-freezing fire hydrant provided by the invention is designed, by being investigated to the many-side of existing market, pass through
Lot of domestic and international related data and national standard are consulted, the opinions and suggestions fed back with reference to user and fire department, determines design
A prominent enhancing antifreeze function, while open light (screw rod transmission), pressure-adjustable (segmentation is opened), voltage stabilizing (increase voltage stabilizing dress
Put), the fire hydrant of the full-featured good appearance such as anticollision (junction adds flexible protection joint).
The invention provides a kind of anti-freezing hydrant, including lower valve body and the first valve rod；
The lower valve body has lower valve chamber and uuper valve chamber, and the uuper valve chamber is connected with the lower valve chamber；
First valve rod runs through the uuper valve chamber and the lower valve chamber, and first valve rod is provided with flap mechanism, uses
Break-make between the control lower valve chamber and the uuper valve chamber；
The inside of first valve rod has along its first axially extending axial drain chamber, the first axial drain chamber
With venturi jet portion, for making the liquid in the uuper valve chamber enter the described first axial drain chamber.
Further, the flap mechanism includes big valve flap and small flap, and the big valve flap and the small flap are located at institute
State in lower valve chamber；The small flap is set on first valve rod, and the small flap can be along the axle of first valve rod
To movement；The big valve flap is set on the upper extension of the small flap, and the big valve flap can be along first valve rod
Axial movement, the end face of the big valve flap is provided with the first inlet opening.
Further, the lower extension of the small flap offers the first osculum, and the circumference of first valve rod opens up
There is the second osculum；Second osculum is connected with the described first axial drain chamber；First osculum with it is described small
The distance between end face of upper extension of flap is no more than second osculum and the suction hole in the venturi jet portion
The distance between.
Further, the bottom of first valve rod is provided with the first limiting section, so that the small flap is always positioned at institute
State on the first valve rod.
Further, the inwall of the uuper valve chamber has limited block, and first valve rod is located in the limited block
In heart hole；First valve rod can move along the axial direction of the lower valve body；Second is additionally provided with first valve rod
Limiting section and the 3rd limiting section, second limiting section and the 3rd limiting section are located at the both sides of the limited block, institute respectively
The top that the second limiting section is located at the limited block is stated, the 3rd limiting section is located at the lower section of the limited block, and described
Three limiting sections are located at the top of the suction hole in the venturi jet portion；Set between second limiting section and the limited block
Second spring, and the second spring is set on first valve rod.
Further, in addition to upper valve body and the second valve rod, the upper valve body are connected with the lower valve body, and it is described on
Valve body is located at the top of the lower valve body；Second valve rod is located in the upper valve body, the bottom of second valve rod with
The top of first valve rod is connected, and the inside of second valve rod has along its second axially extending axial drain chamber,
The second axial drain chamber is connected with the described first axial drain chamber, and the second axial drain chamber is communicated with fast water receiving
Mouth, for the water pipe that runs in；The upper valve body is provided with adjusting screw rod, the top screw thread of the adjusting screw rod and second valve rod
Connection, for driving axis direction of second valve rod along itself to move back and forth.
Further, the upper valve body is connected with the lower valve body by connecting tube；Second valve rod and described the
One valve rod is connected by push rod, and the inside of the push rod has along its 3rd axially extending axial drain chamber, and described second
Axial drain chamber is connected with the described first axial drain chamber by the 3rd axial drain chamber.
Further, in addition to valve base；The valve base is connected with the lower valve body, and the valve base
The lower section of the position lower valve body；The water inlet of the valve base is provided with filter screen.
Further, the upper end of the push rod is connected with the lower end of second valve rod by anticollision coupling joint.
Further, sealing ring, the big valve flap and the lower valve are provided between the big valve flap and the small flap
Sealing ring is provided between the roof of chamber.
Compared with prior art, beneficial effects of the present invention are：
Anti-freezing hydrant provided by the invention, including lower valve body and the first valve rod；Lower valve body has lower valve chamber and uuper valve chamber,
Uuper valve chamber is connected with lower valve chamber；First valve rod runs through uuper valve chamber and lower valve chamber, and the first valve rod is provided with flap mechanism, for controlling
Break-make between lower valve chamber and uuper valve chamber processed；The inside of first valve rod has along its first axially extending axial drain chamber, the
One axial drain chamber has venturi jet portion, for making the liquid in uuper valve chamber enter the first axial drain chamber.In first axle
Venturi jet portion is set to drain chamber, the water accumulated in uuper valve chamber is entered the first axial draining using Venturi effect
Chamber, to realize the ponding in emptying fire hydrant, and the outside for the fire hydrant that ponding is discharged, so as to solve in fire hydrant
Ponding it is frozen the problem of, and with cost it is cheap, simple to operate the characteristics of.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the front view of anti-freezing hydrant provided in an embodiment of the present invention；
Fig. 2 is along the sectional view of line A-A in Fig. 1；
Fig. 3 is the close-up schematic view at B in Fig. 2；
Fig. 4 is the top view of anti-freezing hydrant provided in an embodiment of the present invention；
Fig. 5 is the sectional view of the first valve rod in the embodiment of the present invention；
Fig. 6 is structural representation when anti-freezing hydrant supplies water in the embodiment of the present invention；
Fig. 7 is the close-up schematic view at C in Fig. 6；
Structural representation when Fig. 8 is anti-freezing hydrant emptying ponding in the embodiment of the present invention；
Fig. 9 is the close-up schematic view at D in Fig. 8；
Figure 10 is structural representation when anti-freezing hydrant is closed in the embodiment of the present invention；
Figure 11 is the close-up schematic view at E in Figure 10.
Reference：
101- lower valve bodies；The valve rods of 102- first；103- lower valve chambers；104- uuper valve chambers；
The first axial drain chambers of 108-；109- suction holes；110- jet orifices；111- mix apertures；
112- big valve flaps；The small flaps of 113-；The inlet openings of 114- first；115- sealing rings；
The osculums of 116- first；The osculums of 117- second；The upper extensions of 118-；
119- lower extensions；120- sleeves；The inlet openings of 121- second；The springs of 122- first；
123- limited blocks；The limiting sections of 124- second；The limiting sections of 125- the 3rd；126- upper valve bodies；
The valve rods of 127- second；The second axial drain chambers of 128-；The fast water collecting nozzles of 129-；
130- adjusting screw rods；131- connecting tubes；132- push rods；133- anticollision coupling joints；
134- valve bases；135- filter screens；136-O type circles；137- pentagonal prism structures；
138- drainpipes；139- second springs.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Embodiment
Referring to shown in Fig. 1 to Figure 11, the embodiments of the invention provide a kind of anti-freezing hydrant, including lower valve body and the first valve
Bar 102；Lower valve body has lower valve chamber 103 and uuper valve chamber 104, and uuper valve chamber 104 is connected with lower valve chamber 103；First valve rod 102 passes through
Valve pocket 104 and lower valve chamber 103 are put on, the first valve rod 102 is provided with flap mechanism, for controlling lower valve chamber 103 and uuper valve chamber 104
Between break-make, that is to say, that flap mechanism controls water whether can from lower valve chamber 103 enter uuper valve chamber 104；First valve rod
102 inside has along its first axially extending axial drain chamber 108, the first axial drain chamber 108 and has venturi jet
Portion, for making the liquid in uuper valve chamber 104 enter the first axial drain chamber 108 by using Venturi effect, that is to say, that on
The water accumulated in valve pocket 104 is after the suction hole 109 in venturi jet portion sucks, into the first axial drain chamber 108.Need
It is bright, in the embodiment of the present invention, venturi jet portion can be fabricated to an independent detachable block, that is, make one
Venturi ejector, the detachable block is installed in the first axial drain chamber during use, is so easy to process, and
It is easy to replace and maintain.
The present invention makes uuper valve chamber by setting venturi jet portion in the first axial drain chamber 108 using Venturi effect
The water accumulated in 104 enters the first axial drain chamber 108, to realize the ponding in evacuation and anti-freezing fire hydrant, and by ponding
The outside of the anti-freezing hydrant of discharge, so as to solve the problems, such as that the ponding in fire hydrant is frozen, and there is cost
The characteristics of cheap, simple to operate.
In the embodiment, flap mechanism includes big valve flap 112 and small flap 113, and big valve flap 112 and small flap 113 are located at
In lower valve chamber 103；Small flap 113 is set on the first valve rod 102, and small flap 113 can move along the axial direction of the first valve rod 102
It is dynamic, O-ring is provided between small flap and the first valve rod, wherein O-ring is fixedly mounted on small flap；Big valve flap 112 is arranged
On the upper extension 118 of small flap 113, and big valve flap 112 can along the axial movement of the first valve rod 102, big valve flap 112
End face is provided with the first inlet opening 114.Specifically, the number of the first inlet opening 114 is multiple, multiple first inlet openings 114
It is evenly distributed on using the axle center of big valve flap 112 as on the circle in the center of circle, the number of the first inlet opening 114 can be 4~8；Lower valve
Water in chamber 103 can enter uuper valve chamber 104 from the first inlet opening 114；Big valve flap 112 and the material of small flap 113 are metal,
Metal can be stainless steel, copper or iron.
In the embodiment, sealing ring 115, big valve flap 112 and lower valve chamber are provided between big valve flap 112 and small flap 113
Sealing ring 115 is provided between 103 roof.Specifically, the lower surface of big valve flap 112 offers relative with sealing ring 115
The seal groove answered, sealing ring 115 are fixed on small flap 113, sealing ring 115 and seal groove in a ring, the first inlet opening 114
The distance between axle center of big valve flap 112 be less than big valve flap 112 on seal groove and big valve flap 112 axle center between away from
From after the sealing ring 115 on so small flap 113 enters the seal groove on big valve flap 112, the water in lower valve chamber 103 just can not
Enter uuper valve chamber 104 from the first inlet opening 114.The upper surface fixed seal ring 115 of big valve flap 112, the roof of lower valve chamber 103 are opened
Provided with the corresponding seal groove of the sealing ring 115 of the upper surface with big valve flap 112, the sealing of the upper surface of such big valve flap 112
After circle 115 enters the seal groove of the roofs of lower valve chambers 103, water in lower valve chamber 103 just can not from the upper surface of big valve flap 112 with
Enter uuper valve chamber 104 between the roof of lower valve chamber 103.
In the embodiment, the lower extension 119 of small flap 113 offers the first osculum 116, the week of the first valve rod 102
To offering the second osculum 117；Second osculum 117 is connected with the first axial drain chamber 108；First osculum 116 with
The distance between end face of upper extension 118 of small flap 113 is no more than the second osculum 117 and the water suction in venturi jet portion
The distance between hole 109, wherein, no more than i.e. be less than or equal to.
Specifically, the upper extension 118 of small flap 113 is located at the upper surface of small flap 113, small flap 113 it is downward
Extending portion 119 is located at the lower surface of small flap 113；First osculum 116 is corresponding with the second osculum 117, the first osculum 116
Number it is identical with the number of the second osculum 117, quantity can be 4~8；The aperture of first osculum 116 and second row
When the aperture in water hole 117 is relative, the first osculum 116 is connected with the second osculum 117, and the water in lower valve chamber 103 just can be from
First osculum 116 enters the second osculum 117, and enters venturi jet portion from the second osculum 117, and is penetrated from venturi
The jet orifice 110 in stream portion sprays, and due to Venturi effect, can make suction of the ponding in uuper valve chamber 104 from venturi jet portion
Water hole 109 enters, and the ponding and the water sprayed from jet orifice 110 enter from the mix aperture 111 in venturi jet portion together, finally
Into the first axial drain chamber 108.The axial direction that the axial length of the upper extension 118 of small flap 113 is more than big valve flap 112 is long
Degree, that is, the thickness more than big valve flap 112.The upper extension 118 of small flap 113 is provided with radial direction spacing preiection, so big
Flap 112 will not be separated with the upper extension 118 of small flap 113.
In the embodiment, the bottom of the first valve rod 102 is provided with the first limiting section, so that small flap 113 is always positioned at
On one valve rod 102.
Specifically, the first spring 122 is provided between the first limiting section and small flap 113.Pass through the energy of the first spring 122
Small flap 113 is upspringed and be close to close with big valve flap 112, so that the sealing between small flap 113 and big valve flap 112
Circle 115 combines with seal groove sealing, strengthens sealing function, and by setting the first spring to contribute in evacuation and anti-freezing fire hydrant
Ponding.First limiting section is sleeve 120, and the circumference of sleeve 120 offers the second inlet opening 121；Of second inlet opening 121
Number is multiple, and its quantity is 4~8.The lower extension 119 of small flap 113 can extend into sleeve 120；122 sets of first spring
It is located in the lower extension 119 of the first small flap 113, and the first spring 122 is located at the lower extension 119 and sleeve of the first flap
Between 120 inwall, so when the first spring 122 compresses, water enters fashionable, it is necessary to by the first bullet from the second inlet opening 121
The first osculum 116 that the gap of spring 122 enters in the lower extension 119 of small flap 113, because gap is smaller, so as to increase
Enter the pressure of the water of the first osculum 116, so as to strengthening Venturi effect, the effect of the ponding of draining of anti-freezing hydrant
Fruit is more preferable.
In the embodiment, the inwall of uuper valve chamber 104 has limited block 123, and the first valve rod 102 is located in limited block 123
In centre bore, the first valve rod 102 can move along the axial direction of lower valve body；It is spacing that second is additionally provided with first valve rod 102
The limiting section 125 of portion 124 and the 3rd, the second limiting section 124 and the 3rd limiting section 125 respectively be located at limited block 123 both sides, second
Limiting section 124 is located at the top of limited block 123, and the 3rd limiting section 125 is located at the lower section of limited block 123, and the 3rd limiting section 125
Positioned at the top of the suction hole 109 in venturi jet portion；Second spring is set between second limiting section 124 and limited block 123
139, and second spring 139 is set on the first valve rod 102.
Specifically, the orientation of the motion of the first valve rod 102 can be ensured by limited block 123, decentraction will not occur
Phenomenon；Big valve flap 112 and small flap 113 are located at the lower section of the 3rd limiting section 125；3rd limiting section 125 is penetrated positioned at venturi
The top of the suction hole 109 in stream portion, the suction hole 109 in venturi jet portion can be avoided to enter in the centre bore of limited block 123,
Namely ensure that the suction hole 109 will not be plugged.
In the embodiment, anti-freezing hydrant also includes the valve rod 127 of upper valve body 126 and second, upper valve body 126 and lower valve body phase
Connection, and upper valve body 126 is located at the top of lower valve body, also with regard to saying it is to say, the cavity of upper valve body 126 and the uuper valve chamber of lower valve body
104 are connected；Second valve rod 127 is located in upper valve body 126, that is to say, that the second valve rod 127 is located in upper valve body 126
In cavity, the bottom of the second valve rod 127 is connected with the top of the first valve rod 102, and the inside of the second valve rod 127 has along its axle
To the second axial drain chamber 128 of extension, the second axial drain chamber 128 is connected with the first axial drain chamber 108, and second axially
Drain chamber 128 is communicated with fast water collecting nozzle 129, for the water pipe 138 that runs in, by drainpipe 138 by the ponding in anti-freezing hydrant
It is discharged to given place；Upper valve body 126 is provided with adjusting screw rod 130, and the top screw thread of the valve rod 127 of adjusting screw rod 130 and second connects
Connect, for driving axis direction of second valve rod 127 along itself to move back and forth, that is to say, that the second valve rod 127 is along the second valve rod
127 axis direction moves back and forth.Sealing ring is set between the upper end of the second valve rod and upper valve body, and such upper valve is endoceliac
Water will not be from the gap outflow between the upper end of the second valve rod and upper valve body, it is therefore prevented that leakage.Adjusting screw rod and upper valve body it
Between be provided with sealing ring, can so prevent gap of the rainwater between adjusting screw rod and upper valve body from entering adjusting screw rod and second
The threaded connection part of valve rod, make the raw corrosion of the threaded joints of adjusting screw rod and the second valve rod distribution, get rusty.Upper valve body is set
There is bolt head, connected by bolt head and fire hose；Bolt head is set with upper valve body in inclination angle, and bolt head tilts down, such bolt head
After being connected with fire hose, current smoothly can flow to fire hose from bolt head, prevent fire hose from bending occurs and causes current
Not smooth situation occurs.
Specifically, the top of adjusting screw rod 130 is pentagonal prism structure 137, and the prism structure is rotated by using spanner,
Adjusting screw rod 130 is rotated clockwise or is rotated counterclockwise, pass through the pitch of the screw thread controlled during processing on adjusting screw rod 130,
All numbers of the rotation of adjusting screw rod 130 can be calculated, so that when rotating 130 necessarily all numbers of adjusting screw rod so that the first draining
Hole 116 is just relative with the second osculum 117, them is connected.Adjusting screw rod 130 can only occur to turn on upper valve body 126
It is dynamic, without producing axially opposite motion with upper valve body 126；When adjusting screw rod 130 rotates, the second valve rod 127 can be along certainly
The axis direction of body moves up and down.
In the embodiment, upper valve body 126 is connected with lower valve body by connecting tube 131, that is to say, that passes through connecting tube
131 cause the cavity of upper valve body 126 to be connected with the uuper valve chamber 104 of lower valve body；Second valve rod 127 passes through with the first valve rod 102
Push rod 132 is connected, and the inside of push rod 132 has along its 3rd axially extending axial drain chamber, the second axial drain chamber 128
It is connected with the first axial drain chamber 108 by the 3rd axial drain chamber.
Specifically, the lower end of push rod 132 and the upper end grafting of the first valve rod 102, the upper end of push rod 132 and the second valve rod
127 lower end is connected by anticollision coupling joint 133, and the anticollision coupling joint 133 can be plastic bushing or gum sleeve.Top
Bar and the second valve rod are plugged in plastic bushing or gum sleeve, and when inserting, can be in push rod and the in order to prevent leak
Sealing ring is arranged in advance on two valve rods.Upper valve body 126 is bolted with connecting tube 131, and lower valve body passes through with connecting tube 131
Bolt connection；The junction of the valve rod 127 of push rod 132 and second is by returning the junction of upper valve body 126 and connecting tube 131；In use,
Connecting tube 131 and lower valve body are embedded in underground, and upper valve body 126 is exposed to earth's surface, when external force so that upper valve body 126 and connecting tube
131 separate when, because the upper end of push rod 132 is connected with the lower end of the second valve rod 127 by anticollision coupling joint 133 so that
Obtaining the valve rod 127 of push rod 132 and second can smoothly disconnect, and avoid damaging push rod 132, so as to realize collision prevention function；Work as upper valve body
Collide, when making the valve rod 127 of push rod 132 and second separately, under second spring and the double action of ground water pressure, first
Valve rod 102 remains to make flap mechanism work, i.e. big valve flap and small flap is still in closed mode, that is to say, that lower valve chamber with it is upper
It is off-state between valve pocket, avoids the situation that water is largely lost in and occur.It should be noted that anticollision coupling joint when using
Positioned at surface location.
It should be noted that when the ponding in anti-freezing hydrant refers to that uuper valve chamber 104 disconnects with the phase of lower valve chamber 103, product
The water stayed in the cavity of uuper valve chamber 104, connecting tube 131 and upper valve body 126.
In the embodiment, anti-freezing hydrant also includes valve base 134；Valve base 134 is connected with lower valve body, and valve
The lower section of 134 lower valve bodies of body base, the water inlet of valve base 134 are provided with filter screen 135, can played by filter screen 135
The effect of filtering.
In the embodiment, the operation principle of anti-freezing hydrant is：
1st, fire-fighting normal water supply：
In the embodiment, the direction of rotation of pentagonal prism structure 137 on anti-freezing hydrant：It is to open counterclockwise clockwise to close.
Rotate counterclockwise pentagonal prism structure so that the second valve rod 127 moves downward, so that the first valve rod 102 is downward
Motion, when the 3rd limiting section 125 is in contact with the top of the upper extension 118 of small flap 113, the first valve rod 102 continue to
During lower motion, the second limiting section 124 promotes small flap 113 to move downward, and small flap 113 is separated with big valve flap 112, due under
The pressure of water in valve pocket 103 is larger, and big valve flap 112 will not separate with the roof of lower valve chamber 103, and the water in lower valve chamber 103 is just
Enter uuper valve chamber 104 from the first inlet opening 114, now inflow is smaller, so as to realize the decompression of fire fighting supply；First valve
Bar 102 continues to move downward, and the radial direction spacing preiection of small flap 113 will withstand the upper surface of big valve flap 112, make big valve flap
112 move downward, and the roof of big valve flap 112 and lower valve chamber 103 will separate, and the gap between them gradually increases, water just from
Enter uuper valve chamber 104 between the roof of big valve flap 112 and lower valve chamber 103, so as to realize complete fire fighting supply；Due to big valve flap
Gap between 112 and the roof of lower valve chamber 103 gradually increases, therefore can also realize the decompression of fire fighting supply.
It should be noted that when the pressure needed for the jet equipments such as the very big but used water band of water supply pressure, hydraulic giant is relative
When smaller, spanner can will be utilized to rotate pentagonal prism structure, and it is rotated back into appropriate location from full open position, is made big valve
Valve can be freely movable, and now, the gap that water just can be between big valve flap and the roof of lower valve chamber enters, and and can is from small flap
Enter between big valve flap, the hydraulic pressure between uuper valve chamber and lower valve chamber becomes and can constantly changed：When the water supply pressure in lower valve chamber is big
During hydraulic pressure in uuper valve chamber, big valve flap moves upwards to diminish into water space, when the water supply pressure in lower valve chamber reduces, big valve
Valve moves downward, and enters water space and becomes greatly so as to complete dynamic voltage regulation of voltage regulation process.
It should also be noted that, when flap mechanism fully opens, the second osculum is blocked by the lower extension of small flap,
The suction hole in venturi jet portion is blocked by big valve flap, and such water just can not be penetrated from the second osculum and suction hole into venturi
Stream portion, during so as to prevent water supply, the particulate matter in water enters venturi jet portion, causes the feelings of the blocking in venturi jet portion
Condition occurs.
2nd, the ponding in evacuation and anti-freezing fire hydrant：
When needing to stop fire fighting supply, pentagonal prism structure is rotated clockwise so that the second valve rod 127 moves upwards, from
And make it that the first valve rod 102 moves upwards, due to the effect of the hydraulic pressure in lower valve chamber 103 and the 3rd limiting section 125, works as big valve flap
112 with the roof of lower valve chamber 103 when being in contact, and small flap 113 and big valve flap 112 are still in released state, and now water can also be from
First inlet opening 114 enters uuper valve chamber 104, when the first valve rod 102 continues up, small flap 113 and big valve flap 112
Sealing ring 115 works, and water just can not enter uuper valve chamber 104 from the first inlet opening 114, now just realize stopping for fire fighting supply
Only, ponding just be present in anti-freezing hydrant, be rotated further pentagonal prism structure, after the setting number of turns is turned to, the first osculum 116
Just it is relative with the second osculum 117, the first osculum 116 is connected with the second osculum 117, the water in lower valve chamber 103
Just enter venturi jet portion from through the second inlet opening 121, the first osculum 116, the second osculum 117, and penetrated from venturi
The jet orifice 110 in stream portion sprays, because Venturi effect can make water suction of the ponding in uuper valve chamber 104 from venturi jet portion
Hole 109 enters, and the ponding and the water sprayed from jet orifice 110 enter from the mix aperture 111 in venturi jet portion together, finally enter
Enter the first axial drain chamber 108, finally discharged from the fast water collecting nozzle 129 connected with the second axial drain chamber 128.When fast water collecting nozzle
After the water of 129 rows for a period of time, after operator has found that the water that fast water collecting nozzle 129 comes out substantially carries bubble, then antifreeze disappear is proved
Ponding in fiery bolt has been emptied completely.
In summary, anti-freezing hydrant provided by the invention can prevent ponding from freezing to cause anti-freezing hydrant to be paralysed, and
And there is the characteristics of anticollision, antifreeze, pressure regulation, cost is cheap, installation is simple and direct, easy to use, simple to operate, while keep away completely
Exempted from it is existing under unload water anti-freeze type and underground installation anti-freeze type fire hydrant defect and deficiency, improve the fire that disappears under cold climate conditions
The reliability that bolt supplies water；Wherein adjusting screw rod is threadedly coupled with the top of the second valve rod, make use of screw rod transmission, is easy to implement big
Flap and small flap are separately turned on.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of anti-freezing hydrant, it is characterised in that including lower valve body and the first valve rod；
The lower valve body has lower valve chamber and uuper valve chamber, and the uuper valve chamber is connected with the lower valve chamber；
First valve rod runs through the uuper valve chamber and the lower valve chamber, and first valve rod is provided with flap mechanism, for controlling
Make the break-make between the lower valve chamber and the uuper valve chamber；
The inside of first valve rod has and had along its first axially extending axial drain chamber, the first axial drain chamber
Venturi jet portion, for making the liquid in the uuper valve chamber enter the described first axial drain chamber.
2. anti-freezing hydrant according to claim 1, it is characterised in that the flap mechanism includes big valve flap and small valve
Valve, the big valve flap and the small flap are located in the lower valve chamber；The small flap is set on first valve rod, and institute
Stating small flap can be along the axial movement of first valve rod；The big valve flap is set on the upper extension of the small flap,
And the big valve flap can be provided with the first inlet opening along the axial movement of first valve rod, the end face of the big valve flap.
3. anti-freezing hydrant according to claim 2, it is characterised in that the lower extension of the small flap offers first
Osculum, the circumference of first valve rod offer the second osculum；Second osculum and the described first axial drain chamber
It is connected；The distance between end face of upper extension of first osculum and the small flap is not more than second draining
The distance between the suction hole in hole and the venturi jet portion.
4. anti-freezing hydrant according to claim 2, it is characterised in that the bottom of first valve rod is provided with the first limit
Position portion, so that the small flap is always positioned on first valve rod.
5. according to the anti-freezing hydrant any one of claim 1-4, it is characterised in that the inwall of the uuper valve chamber has
Limited block, first valve rod are located in the centre bore of the limited block；First valve rod can be along the lower valve body
Axial direction moves；The second limiting section and the 3rd limiting section, second limiting section and institute are additionally provided with first valve rod
The both sides that the 3rd limiting section is located at the limited block respectively are stated, second limiting section is located at the top of the limited block, described
3rd limiting section is located at the lower section of the limited block, and the 3rd limiting section is located at the suction hole in the venturi jet portion
Top；Second spring is set between second limiting section and the limited block, and the second spring is set in described first
On valve rod.
6. according to the anti-freezing hydrant any one of claim 1-4, it is characterised in that also including upper valve body and the second valve
Bar, the upper valve body are connected with the lower valve body, and the upper valve body is located at the top of the lower valve body；Second valve rod
It is located in the upper valve body, the bottom of second valve rod is connected with the top of first valve rod, second valve rod
Inside have along its second axially extending axial drain chamber, the second axial drain chamber and the described first axial drain chamber
It is connected, the second axial drain chamber is communicated with fast water collecting nozzle, for the water pipe that runs in；The upper valve body is provided with regulation spiral shell
Bar, the adjusting screw rod are threadedly coupled with the top of second valve rod, for driving axis of second valve rod along itself
Direction moves back and forth.
7. anti-freezing hydrant according to claim 6, it is characterised in that the upper valve body passes through with the lower valve body to be connected
Pipe is connected；Second valve rod is connected with first valve rod by push rod, and the inside of the push rod has along its axial direction
3rd axial drain chamber of extension, the second axial drain chamber are axially arranged with the described first axial drain chamber by the described 3rd
Water cavity is connected.
8. according to the anti-freezing hydrant any one of claim 1-4, it is characterised in that also including valve base；It is described
Valve base is connected with the lower valve body, and the lower section of the valve base position lower valve body；The valve base enters
The mouth of a river is provided with filter screen.
9. anti-freezing hydrant according to claim 7, it is characterised in that the upper end of the push rod and second valve rod
Lower end is connected by anticollision coupling joint.
10. according to the anti-freezing hydrant any one of claim 2-4, it is characterised in that the big valve flap with it is described small
Sealing ring is provided between flap, sealing ring is provided between the big valve flap and the roof of the lower valve chamber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610517876.2A CN105971069B (en) | 2016-07-01 | 2016-07-01 | A kind of anti-freezing hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610517876.2A CN105971069B (en) | 2016-07-01 | 2016-07-01 | A kind of anti-freezing hydrant |
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| Publication Number | Publication Date |
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| CN105971069A CN105971069A (en) | 2016-09-28 |
| CN105971069B true CN105971069B (en) | 2018-01-23 |
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| CN201610517876.2A Active CN105971069B (en) | 2016-07-01 | 2016-07-01 | A kind of anti-freezing hydrant |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219340A (en) * | 2019-06-20 | 2019-09-10 | 恒盾消防科技有限公司 | A kind of outdoor fire hydrant that anti-freeze type is concealed |
| CN111593789B (en) * | 2020-05-18 | 2021-09-03 | 深圳市广安消防装饰工程有限公司 | Outdoor fire hydrant convenient to sluicing |
| CN112982573B (en) * | 2021-03-09 | 2024-05-24 | 列斯丽(深圳)技术有限公司 | Self-draining fire hydrant structure and fire well comprising same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202416448U (en) * | 2011-11-03 | 2012-09-05 | 埃维柯阀门（安徽）有限公司 | Fire hydrant with drainage device |
| CN105587017A (en) * | 2014-10-24 | 2016-05-18 | 张兴阁 | Aboveground anti-freezing fire hydrant |
| CN205348285U (en) * | 2016-01-18 | 2016-06-29 | 孙占标 | Frostproofing crashproof pressure regulating fire hydrant of ground following formula |
| CN205742375U (en) * | 2016-07-01 | 2016-11-30 | 种炜东 | A kind of anti-freezing hydrant |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9085878B2 (en) * | 2013-11-11 | 2015-07-21 | Merrill Manufacturing Company | Freeze proof sanitary yard hydrant |
| US9234333B2 (en) * | 2014-04-24 | 2016-01-12 | Chih Han KO | Anti-freeze faucet |
-
2016
- 2016-07-01 CN CN201610517876.2A patent/CN105971069B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202416448U (en) * | 2011-11-03 | 2012-09-05 | 埃维柯阀门（安徽）有限公司 | Fire hydrant with drainage device |
| CN105587017A (en) * | 2014-10-24 | 2016-05-18 | 张兴阁 | Aboveground anti-freezing fire hydrant |
| CN205348285U (en) * | 2016-01-18 | 2016-06-29 | 孙占标 | Frostproofing crashproof pressure regulating fire hydrant of ground following formula |
| CN205742375U (en) * | 2016-07-01 | 2016-11-30 | 种炜东 | A kind of anti-freezing hydrant |
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| CN105971069A (en) | 2016-09-28 |
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