CN205824302U - A kind of fire-fighting drain valve - Google Patents
A kind of fire-fighting drain valve Download PDFInfo
- Publication number
- CN205824302U CN205824302U CN201620704195.2U CN201620704195U CN205824302U CN 205824302 U CN205824302 U CN 205824302U CN 201620704195 U CN201620704195 U CN 201620704195U CN 205824302 U CN205824302 U CN 205824302U
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- CN
- China
- Prior art keywords
- fire
- drain valve
- water pipeline
- diaphragm
- cavity
- 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.)
- Expired - Fee Related
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a kind of fire-fighting drain valve, aiming to provide one, to have installation cost low, control accurate advantage fire-fighting drain valve, its drip irrigation device is, the valve body side of fire-fighting drain valve and fire water pipeline communication, opposite side is in communication with the outside, diaphragm cavity it is provided with in valve body, diaphragm switch is slidably connected between diaphragm cavity and fire water pipeline, valve body is provided with regulating and controlling mechanism, regulating and controlling mechanism is divided into regulation portion, first regulating tube and the second regulating tube, first regulating tube is at fire water pipeline, loop is constituted between regulation portion and extraneous passage, second regulating tube connection regulation portion and diaphragm cavity, this fire-fighting drain valve switchs according to hydraulic pressure autogenous control, reach the purpose of opening and closing fire-fighting drain valve, regulation and control are accurately, and installation cost and use cost are relatively low.
Description
Technical field
This utility model relates to fire plant field, particularly to a kind of fire-fighting drain valve.
Background technology
Drain valve is a kind of valve installed in tubing, and its Main Function is the safety of protection pipeline, works as hydraulic pressure
Auto-drainage time excessive, to alleviate the pressure of pipeline.
Hydraulic pressure in fire protection pipeline is the biggest, when carrying out fire rescue, by suction pump by river or from other water sources
Extraction fire demand water, then is sprayed against rescuing by fire hydrant, and rescue closes fire hydrant after terminating, in fire protection pipeline
Hydraulic pressure still exceed sluicing line, now drain valve is opened, and reduces hydraulic pressure for fire protection pipeline, alleviates its pressure.
Currently used fire-fighting drain valve is usually and installs hydraulic pressure sensing device in valve additional, then passes through pressure sensor device
The switch of feedack regulation and control drain valve, although so monitoring is more accurate, but installs and relatively costly, and cost of use is relatively
High.
Utility model content
The purpose of this utility model is to provide a kind of fire-fighting drain valve, and it is low that it has installation cost, controls accurate advantage.
Above-mentioned technical purpose of the present utility model has the technical scheme that
A kind of fire-fighting drain valve, including valve body, described valve body side and fire water pipeline communication, opposite side connects with extraneous
Logical, it is provided with diaphragm cavity in valve body, between diaphragm cavity and fire water pipeline, slidably connects diaphragm switch, valve body is provided with regulation and control machine
Structure, regulating and controlling mechanism is divided into regulation portion, the first regulating tube and the second regulating tube, the first regulating tube fire water pipeline, regulation portion and
Loop, the second regulating tube connection regulation portion and diaphragm cavity is constituted between extraneous passage.
Being arranged such, when the current in fire water pipeline are relatively big, during hydraulic pressure overpressure line, the water in fire water pipeline will
Diaphragm switch backs down, and the water in fire protection pipeline just can flow out from extraneous passage, reaches to lead off the purpose of hydraulic pressure, works as fire water
When hydraulic pressure in pipeline tends towards stability, under the gravity of diaphragm switch self and the effect of the second regulation and control inner pipe water pressure, barrier film is opened
Closing and fall after rise, again reach to close the purpose of fire-fighting drain valve, the structure that so can make fire-fighting drain valve is easier, and installation makes
Lower with cost, and the Guan Bi of pressure release and switch is carried out by hydraulic pressure, it is the most accurate to regulate and control.
Arrange further: described fire water pipeline is inclined upwardly setting, and angle of inclination is 60 °.
Being arranged such, fire water pipeline is inclined upwardly to arrange and the hydraulic pressure in fire extinguisher canvas hose road can be made more stable, and
Fire water can be increased and back down pressure required during diaphragm switch, thus promote the basis pressure required for fire-fighting drain valve pressure release
Power, fire water pipeline tilts to also result in the inclination of diaphragm cavity and diaphragm switch simultaneously, increases the dynamics of the closedown of diaphragm switch, enters
One step improves the pressure of foundation required for fire-fighting drain valve pressure release.
Arrange further: fire water pipeline tilts one end and connects with diaphragm cavity, and diaphragm switch one end is positioned at diaphragm cavity, separately
One end is positioned on fire water pipeline.
It is arranged such, when hydraulic pressure height in fire water pipeline, just diaphragm switch can be backed down automatically, thus reach pressure release
Purpose.
Arrange further: described diaphragm switch includes taking over a business, the connecting rod with chassis is taken over a business in chassis, connection, takes over a business to be positioned at
In diaphragm cavity, chassis is placed on fire water pipeline, and connecting rod is located in the interconnecting part on diaphragm cavity.
It is arranged such, the taking over a business and diaphragm cavity can be stuck in as spacing diaphragm switch is by top waterborne when of plate-like
In, it is to avoid diaphragm switch justice is above pushed up always and is caused the abrasion of diaphragm cavity inwall, and chassis can going out whole fire water pipeline
The mouth of a river is all blocked, and when preventing properly functioning, water therefrom spills, and wastes resource, and connecting rod can allow connecting rod in being located in interconnecting part
Free, up and down, thus reaching hydraulic pressure height is the purpose leading pressure off.
Arrange further: the diameter of described second regulating tube is the 1/2 of the first regulating tube diameter.
It is arranged such, owing to diaphragm switch is back promoted by the auxiliary that functions as of the second regulating tube, thus closes and disappear
Anti-drain valve, reaches properly functioning purpose, therefore the diameter of the second regulating tube have only to be the first regulating tube diameter 1/2 just
Can achieve the goal.
Arrange further: described diaphragm cavity is divided into cavity and chamber lid, and cavity is bolted with chamber lid.
Being arranged such, it is relatively stable connected mode that bolt connects, and with bolts cavity and chamber lid is connected to
One piece can be by fixing for diaphragm cavity the most firm, it is ensured that the stability during work of fire-fighting drain valve, cavity and the second tune
Keyholed back plate connects, and is arranged such and can increase its sealing.
As preferably, described fire water pipeline is provided with Pressure gauge.
Being arranged such, Pressure gauge can help the operator's real-time monitoring to fire-fighting drain valve, to ensure that fire-fighting sluices
The normal work of valve, in order to avoid fire-fighting drain valve goes wrong and can not cause the delay of rescue work by on-call maintenance.
In sum, this utility model has the advantages that
This fire-fighting drain valve switchs according to hydraulic pressure autogenous control, reaches the purpose of opening and closing fire-fighting drain valve, and regulation and control are accurate,
And installation cost and use cost are relatively low.
Accompanying drawing explanation
Fig. 1 is the embodiment 1 structural representation when closing；
Fig. 2 is the embodiment 1 schematic diagram when opening.
In figure, 1, valve body；2, fire water pipeline；3, extraneous passage；11, diaphragm cavity；12, diaphragm switch；13, regulation and control machine
Structure；111, cavity；112, chamber lid；121, top cover；122, connecting rod；123, bottom；131, regulation portion；132, the first regulating tube；
133, the second regulating tube.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Embodiment 1: a kind of fire-fighting drain valve, as it is shown in figure 1, the left side of fire-fighting drain valve is cylindrical fire water pipeline
2, upwarp on the right side of fire water pipeline 2, the angle upwarped is 60 °, and the top of fire water pipeline 2 is diaphragm cavity 11, and diaphragm cavity 11 is whole
Body is also cylindric, and the angle of inclination of diaphragm cavity 11 is identical with the angle of inclination on the right side of fire water pipeline 2, the right side of diaphragm cavity 11
Being extraneous passage 3, extraneous passage 3, fire water pipeline 2 and diaphragm cavity 11 are simultaneously at intermediate connection.
As it is shown in figure 1, diaphragm cavity 11 is divided into two parts, bottom is cavity 111, cavity 111 substantially cylindrical, top
Portion is chamber lid 112, and chamber lid 112 is coniform, together with chamber lid 112 is bolted with the left and right sides of cavity 111.
As it is shown in figure 1, diaphragm cavity 11 bosom position is communicated with portion, interconnecting part is wholely set with cavity 111, connection
Being provided with a through hole in the middle of portion, be provided with diaphragm switch 12 in through hole, the centre of diaphragm switch 12 is cylindrical connecting rod
122, connecting rod 122 is located in through hole, and can free sliding, the lower section of connecting rod 122 connects the chassis having lid, the end
Dish rides over the mouth of pipe of fire water pipeline 2, the fire water in fire water pipeline 2 is intercepted outside, and connecting rod 122 is connected above dish
The top cover 121 of shape, is also integrally formed with diaphragm seal in the middle of top cover 121, and diaphragm seal is circular, and is bolted at cavity
Between 111 and chamber lid 112.
The top of diaphragm cavity 11 is the regulation portion 131 in regulating and controlling mechanism 13, and regulation portion 131 is by left side and the first of right side
Being linked to be loop between regulating tube 132 and fire water pipeline 2 and external pipe, the second regulating tube 133 is passed through in the bottom in regulation portion 131
Connect with diaphragm cavity 11.
Seeing Fig. 1 and Fig. 2, when pressure stability in fire water passage, the chassis of diaphragm switch 12 rides over fire extinguisher canvas hose
On the through hole in road 2, not having water in extraneous passage 3, when pressure buildup in fire water pipeline 2, barrier film takes on a new look related close
Sealer is backed down, and current flow away in extraneous passage 3, after leading off, under the effect of self gravitation and the second regulating tube 133 every
Membrane switch 12 falls after rise, reaches normal operating conditions, and such fire-fighting drain valve simple in construction, cost of installation and use is the lowest
Honest and clean.
The above embodiments are only that it is not to restriction of the present utility model, ability to explanation of the present utility model
The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (7)
1. a fire-fighting drain valve, including valve body (1), it is characterised in that: described valve body (1) side is with fire water pipeline (2) even
Logical, opposite side is in communication with the outside, and is provided with diaphragm cavity (11) in valve body (1), slides between diaphragm cavity (11) and fire water pipeline (2)
Connect have diaphragm switch (12), valve body (1) to be provided with regulating and controlling mechanism (13), regulating and controlling mechanism (13) be divided into regulation portion (131), first
Regulating tube (132) and the second regulating tube (133), the first regulating tube is at fire water pipeline (2), regulation portion (131) and extraneous passage
(3) loop, the second regulating tube (133) connection regulation portion (131) and diaphragm cavity (11) are constituted between.
Fire-fighting drain valve the most according to claim 1, it is characterised in that: described fire water pipeline (2) is inclined upwardly setting,
Angle of inclination is 60 °.
Fire-fighting drain valve the most according to claim 2, it is characterised in that: fire water pipeline (2) tilts one end and diaphragm cavity
(11) connection, diaphragm switch (12) one end is positioned at diaphragm cavity (11), and the other end is positioned on fire water pipeline (2).
Fire-fighting drain valve the most according to claim 1, it is characterised in that: described diaphragm switch (12) includes taking over a business, chassis,
Connecting to take over a business the connecting rod (122) with chassis, take over a business to be positioned at diaphragm cavity (11), chassis is placed on fire water pipeline (2), connects
Bar (122) is located in the interconnecting part on diaphragm cavity (11).
Fire-fighting drain valve the most according to claim 4, it is characterised in that: the diameter of described second regulating tube (133) is
The 1/2 of one regulating tube (132) diameter.
Fire-fighting drain valve the most according to claim 1, it is characterised in that: described diaphragm cavity (11) be divided into cavity (111) and
Chamber lid (112), cavity (111) is bolted with chamber lid (112).
Fire-fighting drain valve the most according to claim 6, it is characterised in that: described fire water pipeline (2) is provided with Pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620704195.2U CN205824302U (en) | 2016-07-05 | 2016-07-05 | A kind of fire-fighting drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620704195.2U CN205824302U (en) | 2016-07-05 | 2016-07-05 | A kind of fire-fighting drain valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205824302U true CN205824302U (en) | 2016-12-21 |
Family
ID=57564293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620704195.2U Expired - Fee Related CN205824302U (en) | 2016-07-05 | 2016-07-05 | A kind of fire-fighting drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205824302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476284A (en) * | 2017-09-26 | 2017-12-15 | 中国科学院武汉岩土力学研究所 | Underground water pressure limiting backflow device and underground water pressure limiting recharge system |
-
2016
- 2016-07-05 CN CN201620704195.2U patent/CN205824302U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476284A (en) * | 2017-09-26 | 2017-12-15 | 中国科学院武汉岩土力学研究所 | Underground water pressure limiting backflow device and underground water pressure limiting recharge system |
| CN107476284B (en) * | 2017-09-26 | 2023-05-09 | 中国科学院武汉岩土力学研究所 | Groundwater pressure limiting recharging device and groundwater pressure limiting recharging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20180705 |