CN103055461A - Low-torque linkage double-open fire hydrant - Google Patents
Low-torque linkage double-open fire hydrant Download PDFInfo
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- CN103055461A CN103055461A CN2013100139537A CN201310013953A CN103055461A CN 103055461 A CN103055461 A CN 103055461A CN 2013100139537 A CN2013100139537 A CN 2013100139537A CN 201310013953 A CN201310013953 A CN 201310013953A CN 103055461 A CN103055461 A CN 103055461A
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Abstract
The invention discloses a low-torque linkage double-open fire hydrant which comprises a hydrant seat. A hydrant body is arranged on the hydrant seat; a hydrant cover is sealed at the end of the hydrant body; a valve seat is arranged between the hydrant seat and the hydrant body; a valve cavity is formed in the valve seat; a valve core is arranged in the valve cavity; an operating rod penetrates through the hydrant body and the hydrant cover; the valve core comprises a valve plate; a pressure-relief hole is formed in the valve plate and is provided with a pressure-relief valve for blocking the pressure-relief hole; the operating rod is connected with the pressure-relief valve; a linkage limiting device is arranged between the operating rod and the valve plate; when the fire hydrant is opened, an operating screw rod drives the valve plate to move downwards, and because the area of the pressure-relief valve is smaller than that of the valve plate, the pressure-relief valve can be rapidly opened through small opening torque, and thus the pressure in a cavity of the fire hydrant is reduced; and moreover, when the fire hydrant is closed, the valve plate with large area moves upwards, and then the pressure-relief valve is closed, so that the pressure-relief valve is opened or closed in a labor-saving mode, the resonance phenomenon of the internal parts is eliminated, noises are eliminated, and the low-torque linkage double-open fire hydrant is convenient and reliable to use.
Description
Technical field
The present invention relates to a kind of fire hydrant, relate in particular to a kind of low moment of torsion linked double open of being convenient to open and open fire hydrant.
Background technology
At present along with social stability develops rapidly; the Environmental security protection becomes one of earnest major issue of paying close attention to of the common people; wherein fire is particularly attracted attention; the property loss that fire causes is larger; the each place is the element task of further strengthening security against fire for this reason; in the residential quarter, market town, industrial and mining enterprises and public place all supporting installation fire-fighting infrastructure, fire hydrant is one of wherein important facility, for security against fire is laid a good foundation.The structure of fire hydrant commonly used mostly is and comprises bolt seat, valve seat, adapter, outlet pipe and the stopper that connects successively, valve seat is provided with spool, pass adapter, outlet pipe and stopper and be connected the valve rod that connects fire hydrant operating system, the outlet pipe sidewall is provided with water band Connection Block, be connected bolt seat, valve seat and the adapter of fire hydrant underground during installation and connect water supply line by bolt seat, open by fire hydrant operating system control spool during use the water of water supply line is drawn use.Because fire hydrant can bear the hydraulic pressure of some strength in the process of opening or closing, therefore to open moment excessive because hydraulic pressure Da Yi causes in the operation engineering, open relatively effort, especially when closing, current suddenly can make inner body be subjected to water impact to cause serious covibration in, the fire hydrant bolt chamber large because of hydraulic pressure, can produce larger noise simultaneously, be unfavorable for guaranteeing the safe handling of fire hydrant.
After fire hydrant uses in addition, can have a part of remaining water in its bolt chamber, because fire hydrant is in the state of closing sealing fully under obsolete state, so this part remaining water can not discharge or evaporate in time.If the remaining water of use in winter can not be discharged fast, then can in fire hydrant bolt chamber, produce the phenomenon of freezing, because volume can expand behind the water freezing, can produce certain expansionary force to the key of fire hydrant, the fire hydrant bursting by freezing is damaged, had a strong impact on reusing of fire hydrant.And if present fire hydrant hits because of mistake or mistake is bumped when causing inner components impaired, needs fire hydrant is out checked repairing from mine working, causes maintenance inconvenient.
Summary of the invention
Technical problem to be solved by this invention provide a kind of simple to operate, noise is little, the low moment of torsion linked double open of labor-saving opening opens fire hydrant.
For solving the problems of the technologies described above, technical scheme of the present invention is: low moment of torsion linked double open opens fire hydrant, comprise bolt seat, on the described bolt seat key is installed, described key end portion encloses has stopper, be provided with valve seat between described bolt seat and the described key, be provided with valve pocket in the described valve seat, be provided with spool in the described valve pocket, pass described key and stopper and be provided with action bars, described spool comprises the valve plate for the described valve pocket of shutoff, described valve plate is provided with relief hole, described relief hole place is provided with the relief valve for the described relief hole of shutoff, and described action bars connects described relief valve, is provided with the interlock stopping means between described action bars and the described valve plate.
As preferred technical scheme, but described relief valve comprises the pressure release valve plate of the described relief hole of capping, and the area of described pressure release valve plate is less than described valve plate area, and described pressure release valve plate is provided with the connecting rod that passes described relief hole, and described connecting rod is connected by pitman pin with described action bars.
As preferred technical scheme, described interlock stopping means comprises the stopper slot that described valve plate is provided with, and described pitman pin is constrained in the described stopper slot and can slides up and down along described stopper slot.
As preferred technical scheme, described pitman pin sliding stroke is less than 10mm.
As preferred technical scheme, the area of described relief hole is the sixth to four/of described valve plate area.
As preferred technical scheme, described key comprises to be taken over and outlet pipe, and described bolt seat, valve seat, adapter, outlet pipe and stopper are by flange successively detachable being fixedly connected with.
As preferred technical scheme, described action bars comprises the operation screw rod with described stopper threaded engagement, described operation screw rod is connected with upper connecting rod by connecting pin, and described upper connecting rod is connected with lower connecting rod by connecting pin, and described lower connecting rod connects described connecting rod by pitman pin.
As preferred technical scheme, be threaded connection the guide holder that is arranged with tubulose in the described valve pocket, described valve pocket inner surface and described guide holder outer surface are tightly connected, described valve plate external diameter greater than described guide holder internal diameter less than the internal diameter of described valve pocket; Described valve plate is provided with the tube chamber that passes described guide holder and the guiding rib that cooperates with described guide holder.
As preferred technical scheme, be provided with the relief port that is communicated with described valve pocket with the mating surface of described guide holder on the described guiding rib, described valve seat sidewall is provided with and passes described guide holder and be communicated with valve pocket and the earial drainage water channel corresponding with described relief port, and slipper seal contacts between described guide holder and the described guiding rib.
As to improvement of the technical scheme, be provided with hollow screw plug in the described earial drainage water channel.
Owing to having adopted technique scheme, low moment of torsion linked double open opens fire hydrant, comprise bolt seat, on the described bolt seat key is installed, described key end portion encloses has stopper, be provided with valve seat between described bolt seat and the described key, be provided with valve pocket in the described valve seat, be provided with spool in the described valve pocket, pass described key and stopper and be provided with action bars, described spool comprises the valve plate for the described valve pocket of shutoff, described valve plate is provided with relief hole, described relief hole place is provided with the relief valve for the described relief hole of shutoff, and described action bars connects described relief valve, is provided with the interlock stopping means between described action bars and the described valve plate; The invention has the beneficial effects as follows: when opening fire hydrant, the operation screw rod drives valve plate and moves down, because the area of relief valve less than the area of valve plate, therefore needs less unlatching moment to open fast, the fire hydrant cavity pressure is reduced; And when closing fire hydrant, because the area of valve plate is large, valve plate at first moves up, and relief valve cuts out subsequently, opens or close laborsaving, has eliminated the covibration of inner components, has eliminated simultaneously noise, uses light reliably.
Description of drawings
The following drawings only is intended to the present invention done and schematically illustrates and explain, not delimit the scope of the invention.Wherein:
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is embodiment of the invention pressure release view;
Fig. 3 is the use view of the embodiment of the invention;
Fig. 4 is the earial drainage view of the embodiment of the invention;
Among the figure: the 1-bolt seat; The 2-key; 21-takes over; The 22-outlet pipe; The 3-stopper; The 4-valve seat; The 5-action bars; 51-operates screw rod; The 52-connecting pin; The 53-upper connecting rod; The 54-lower connecting rod; The 6-valve plate; The 7-relief hole; 8-pressure release valve plate; The 9-connecting rod; The 10-pitman pin; The 11-stopper slot; The 12-guide holder; The 13-guiding rib; The 14-relief port; 15-earial drainage water channel; The hollow screw plug of 16-.
The specific embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention wherein is described.In the accompanying drawings, identical label represents identical or similar assembly or element.
As shown in Figure 1, low moment of torsion linked double open opens fire hydrant, comprise bolt seat 1, on the described bolt seat 1 key 2 is installed, described key 2 end portion encloses have stopper 3, be provided with valve seat 4 between described bolt seat 1 and the described key 2, be provided with valve pocket in the described valve seat 4, be provided with spool in the described valve pocket, pass described key 2 and stopper 3 and be provided with action bars 5, described spool comprises the valve plate 6 for the described valve pocket of shutoff, described valve plate 6 is provided with relief hole 7, and the area of described relief hole 7 is the sixth to four/of described valve plate 6 areas, is five/for the moment of described valve plate 6 areas through the many experiments proof when the area of relief hole 7, and the pressure release effect is best.Described relief hole 7 places are provided with the relief valve for the described relief hole 7 of shutoff, and described action bars 5 connects described relief valve, is provided with the interlock stopping means between described action bars 5 and the described valve plate 6.
But described relief valve comprises the pressure release valve plate 8 of the described relief hole 7 of capping, and the area of described pressure release valve plate 8 is less than described valve plate 6 areas, described pressure release valve plate 8 is provided with the connecting rod 9 that passes described relief hole 7, and described connecting rod 9 is connected by pitman pin 10 with described action bars 5.In order to reach best pressure release effect, the area that makes described pressure release valve plate 8 is 1/4 of described valve plate 6 areas in the present embodiment.Described interlock stopping means comprises the stopper slot 11 that described valve plate 6 is provided with, and described pitman pin 10 is constrained in the described stopper slot 11 and can slides up and down along described stopper slot 11, and described pitman pin 10 sliding strokes are less than 10mm.
Described key 2 comprises adapter 21 and outlet pipe 22, described bolt seat 1, valve seat 4, adapter 21, outlet pipe 22 and stopper 3 are by flange successively detachable being fixedly connected with, bolt seat 1, valve seat 4 and take over 21 be embedded in underground, bolt seat 1 is used for connecting feed pipe, outlet pipe 22 and stopper 3 are positioned at more than the ground, outlet pipe 22 is provided with water band Connection Block, is used for connecting fire hose, uses for fire-fighting.The present embodiment is convenient to dismounting, and namely part can be taken off outlet pipe 22 and stopper 3 by flange is taken apart because mistake is hit, mistake is bumped and occurred damaging or parts such as inner spool need to safeguard the time when being arranged at ground more than, keeps in repair to get final product.Described action bars 5 comprises the operation screw rod 51 with described stopper 3 threaded engagement, described operation screw rod 51 is connected with upper connecting rod 53 by connecting pin 52, described upper connecting rod 53 is connected with lower connecting rod 54 by connecting pin 52, and described lower connecting rod 54 connects described connecting rod 9 by pitman pin 10.When the situation of meeting accident, when suffering that such as the fire hydrant aerial part impact damage or inner body damage, the nut of desirable lower flange, outlet pipe 22 and stopper 3 are removed, utilized special spanner to block connecting pin 52, and rotation can be taken out the inner bodies such as lower connecting rod 54, spool, thereby do not reach and need dig out whole fire hydrant, can finish and change inner body or maintenance task, help to improve maintenance efficiency, and simple to operation.
Such as Fig. 1, Fig. 2 and the opening process schematic diagram that Figure 3 shows that the present embodiment, the present embodiment increases a relief valve in the middle of valve plate 6, when opening fire hydrant, rotary manipulation screw rod 51 drives relief valve and moves down, because relief valve bottom compression area only is 1/4 of valve plate 6 bottom compression areas, can open fast relief valve therefore use less unlatching moment, and the stroke maximum of relief valve only has 10mm, fluid from relief valve through being arrow place among Fig. 2, make the pressure drop in the fire hydrant bolt chamber, and because pressure release is rapid, so other parts of inside, fire hydrant bolt chamber can not produce resonance, and then have eliminated noise.After the fire hydrant pressure release, lower connecting rod 54 drives valve plate 6 by pitman pin 10 and moves down, until open fire hydrant fully; When closing fire hydrant, reverse rotation operation screw rod 51 drives relief valves and moves upward, because valve plate 6 compression areas are larger, valve plate 6 pressurizeds at first move up and close sealing, and the then relief valve 10mm sealing that continues to move up is until close fire hydrant fully.Open and close in the whole process at fire hydrant, noiselessness, and open and close torque is less, and traditional fire hydrant open and close torque is about 300NM, and the fire hydrant open and close torque of this design is easy to operate less than 100NM.
Be threaded connection the guide holder 12 that is arranged with tubulose in the described valve pocket, described valve pocket inner surface and described guide holder 12 outer surfaces are tightly connected, described valve plate 6 external diameters greater than described guide holder 12 internal diameters less than the internal diameter of described valve pocket; Described valve plate 6 is provided with the tube chamber that passes described guide holder 12 and the guiding rib 13 that cooperates with described guide holder 12.Be provided with the relief port 14 that is communicated with described valve pocket with the mating surface of described guide holder 12 on the described guiding rib 13, described valve seat 4 sidewalls are provided with and pass described guide holder 12 and be communicated with valve pockets and the earial drainage water channel 15 corresponding with described relief port 14, and slipper seal contacts between described guide holder 12 and the described guiding rib 13.Shown in the arrow among Fig. 4; after being communicated with earial drainage water channel 15, relief port 14 forms current by pass; to accumulate after fire hydrant is used at the intraluminal remained water discharge of fire hydrant and go out; prevent that fire hydrant from using the icing bursting by freezing phenomenon of rear generation in the winter time; be conducive to protect fire hydrant, make things convenient for it successfully to reuse.
As shown in Figure 1, be provided with hollow screw plug 16 in the described earial drainage water channel 15, be provided with the connecting thread that is used in conjunction with described hollow screw plug 16 in the described earial drainage water channel 15, guiding rib 13 places of valve plate 6 are provided with relief port 14, when fire hydrant was closed, water flowed out by the relief port 14 on the guiding rib 13 in the key, discharged by the earial drainage water channel 15 at hollow screw plug 16 places again, thus, eliminate microthermal climate because of the hidden danger of fire hydrant water bursting by freezing.
As mentioned above, describe particularly embodiments of the invention in the above, but the invention is not restricted to this.It should be appreciated by those skilled in the art, can carry out various modifications, combination, sub-portfolio or replacement according to designing requirement or other factors, and they are in the scope of claims and equivalent thereof.
Claims (10)
1. low moment of torsion linked double open opens fire hydrant, comprise bolt seat, on the described bolt seat key is installed, described key end portion encloses has stopper, be provided with valve seat between described bolt seat and the described key, be provided with valve pocket in the described valve seat, be provided with spool in the described valve pocket, pass described key and stopper and be provided with action bars, it is characterized in that: described spool comprises the valve plate for the described valve pocket of shutoff, and described valve plate is provided with relief hole, and described relief hole place is provided with the relief valve for the described relief hole of shutoff, described action bars connects described relief valve, is provided with the interlock stopping means between described action bars and the described valve plate.
2. low moment of torsion linked double open as claimed in claim 1 opens fire hydrant, it is characterized in that: but described relief valve comprises the pressure release valve plate of the described relief hole of capping, and the area of described pressure release valve plate is less than described valve plate area, described pressure release valve plate is provided with the connecting rod that passes described relief hole, and described connecting rod is connected by pitman pin with described action bars.
3. low moment of torsion linked double open as claimed in claim 2 opens fire hydrant, it is characterized in that: described interlock stopping means comprises the stopper slot that described valve plate is provided with, and described pitman pin is constrained in the described stopper slot and can slides up and down along described stopper slot.
4. low moment of torsion linked double open as claimed in claim 3 opens fire hydrant, it is characterized in that: described pitman pin sliding stroke is less than 10mm.
5. low moment of torsion linked double open as claimed in claim 2 opens fire hydrant, it is characterized in that: the area of described relief hole is the sixth to four/of described valve plate area.
6. open fire hydrant such as claim 2,3,4 or 5 described low moment of torsion linked double opens, it is characterized in that: described key comprises to be taken over and outlet pipe, and described bolt seat, valve seat, adapter, outlet pipe and stopper are by flange successively detachable being fixedly connected with.
7. low moment of torsion linked double open as claimed in claim 6 opens fire hydrant, it is characterized in that: described action bars comprises the operation screw rod with described stopper threaded engagement, described operation screw rod is connected with upper connecting rod by connecting pin, described upper connecting rod is connected with lower connecting rod by connecting pin, and described lower connecting rod connects described connecting rod by pitman pin.
8. low moment of torsion linked double open as claimed in claim 7 opens fire hydrant, it is characterized in that: be threaded connection the guide holder that is arranged with tubulose in the described valve pocket, described valve pocket inner surface and described guide holder outer surface are tightly connected, described valve plate external diameter greater than described guide holder internal diameter less than the internal diameter of described valve pocket; Described valve plate is provided with the tube chamber that passes described guide holder and the guiding rib that cooperates with described guide holder.
9. low moment of torsion linked double open as claimed in claim 8 opens fire hydrant, it is characterized in that: be provided with the relief port that is communicated with described valve pocket with the mating surface of described guide holder on the described guiding rib, described valve seat sidewall is provided with and passes described guide holder and be communicated with valve pocket and the earial drainage water channel corresponding with described relief port, and slipper seal contacts between described guide holder and the described guiding rib.
10. low moment of torsion linked double open as claimed in claim 9 opens fire hydrant, it is characterized in that: be provided with hollow screw plug in the described earial drainage water channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310013953.7A CN103055461B (en) | 2013-01-15 | 2013-01-15 | Low-torque linkage double-open fire hydrant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310013953.7A CN103055461B (en) | 2013-01-15 | 2013-01-15 | Low-torque linkage double-open fire hydrant |
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| Publication Number | Publication Date |
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| CN103055461A true CN103055461A (en) | 2013-04-24 |
| CN103055461B CN103055461B (en) | 2015-02-18 |
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| CN201310013953.7A Active CN103055461B (en) | 2013-01-15 | 2013-01-15 | Low-torque linkage double-open fire hydrant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548452A (en) * | 2015-02-10 | 2015-04-29 | 宁津宝华机械有限公司 | Low-torque self-sealing fire hydrant |
| CN106382369A (en) * | 2015-12-29 | 2017-02-08 | 安徽红星阀门有限公司 | Water supply hydrant |
| CN108159618A (en) * | 2017-12-27 | 2018-06-15 | 陈黎群 | Fire hydrant |
| CN118121887A (en) * | 2024-04-30 | 2024-06-04 | 沪消消防科技有限公司 | Flow-speed-adjustable fire hydrant and flow speed adjusting method thereof |
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| CN203017629U (en) * | 2013-01-15 | 2013-06-26 | 潍坊裕川机械有限公司 | Low-torque linkage dual-opening fire hydrant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548452A (en) * | 2015-02-10 | 2015-04-29 | 宁津宝华机械有限公司 | Low-torque self-sealing fire hydrant |
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| CN118121887A (en) * | 2024-04-30 | 2024-06-04 | 沪消消防科技有限公司 | Flow-speed-adjustable fire hydrant and flow speed adjusting method thereof |
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| Publication number | Publication date |
|---|---|
| CN103055461B (en) | 2015-02-18 |
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