CN205042023U - Take pressure relief device fire coupling stifle - Google Patents
Take pressure relief device fire coupling stifle Download PDFInfo
- Publication number
- CN205042023U CN205042023U CN201520737209.6U CN201520737209U CN205042023U CN 205042023 U CN205042023 U CN 205042023U CN 201520737209 U CN201520737209 U CN 201520737209U CN 205042023 U CN205042023 U CN 205042023U
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- CN
- China
- Prior art keywords
- stifle
- pressure relief
- relief device
- cavity
- fire coupling
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- 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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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a take pressure relief device fire coupling stifle, including the stifle body, stifle body inner wall is provided with an annular recess, sealed rubber ring is installed to the recess, stifle body inner wall middle part indent is formed with a cavity, the cavity upper end is provided with the pressure release hole of accessing to stifle body up end, install pressure relief device in the cavity, this stifle is through being provided with pressure relief device, make when using the fire hydrant to open the stifle, can be through pressure relief device earlier with the high -pressure gas of stifle the inside and water by pressure release hole discharge, thereby it causes unnecessary to hurt to operating personnel to prevent that the high -pressure gas of stifle the inside from popping out with water, the safety in utilization of this stifle has effectively been improved.
Description
Technical field
The utility model relates to a kind of fire-fighting equipment, particularly relates to a kind of band pressure relief device fire coupling stifle.
Background technology
Fire hydrant is the critical facility ensureing fire brigade's fire extinguishing disaster relief, is mainly the water source that fire fighting vehicle provides sufficient, avoids because water shortage causes putting out a fire.Fire hydrant is generally placed in numerous public places such as street, residential quarter, shopping centre, industrial area, for fire-fighting provides stable water source guarantee.When not using, stifle shutoff is generally used in fire hydrant end, prevents fire hydrant inside damaged.The stifle of traditional structure when usually using inside often can have the gas and water that fire hydrant leaks; when through after a period of time; inside stifle, pressure can be very large; when needs use fire hydrant and open stifle; gases at high pressure inside stifle and water may eject and damage operating personnel, and safety in utilization is low.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of band pressure relief device fire coupling stifle, and it has and can carry out the high feature of pressure release, security to stifle.
The technical scheme that the utility model adopts is mainly: a kind of band pressure relief device fire coupling stifle, comprise stifle body, described stifle inner body wall is provided with an annular groove, described annular groove is provided with O-ring seal, in the middle part of stifle inner body wall, indent is formed with a cavity, described cavity upper end is provided with the relief hole leading to stifle body upper surface, is provided with pressure relief device in cavity.
As the improvement of technique scheme, described pressure relief device comprises a spool and connects the elastic parts of spool, and described spool stretches out in stifle body upper surface through relief hole.
As the further improvement of technique scheme, described elastic parts comprises a spring, and described spring top is connected with valve seal cushion rubber, and spring bottom end is limited in cavity by jump ring.
Further, described spool end is provided with draw ring hole, and described draw ring hole is equipped with draw ring.
Further, described stifle body lower end is socketed with adapter sleeve, and described adapter sleeve outer wall is provided with non-skid rubber ring.
Further, described adapter sleeve is provided with for the pawl seat in mating connection with external lug claw.
The beneficial effects of the utility model are:
One band pressure relief device fire coupling stifle of the present utility model, comprise stifle body, stifle inner body wall is provided with an annular groove, annular groove is provided with O-ring seal, in the middle part of stifle inner body wall, indent is formed with a cavity, cavity upper end is provided with the relief hole leading to stifle body upper surface, in cavity, pressure relief device is installed, this stifle is by being provided with pressure relief device, make when using fire hydrant to need to open stifle, first the gases at high pressure inside stifle and water can be discharged by relief hole by pressure relief device, thus prevent the gases at high pressure inside stifle and water ejection from causing unnecessary injury to operating personnel, effectively improve the safety in utilization of this stifle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to Fig. 1, a preferred embodiment of the present utility model, a kind of band pressure relief device fire coupling stifle, comprise stifle body 1, stifle body 1 is preferably by metal or integrally mouldedly to make, ensure the stability under loading of its structure, stifle body 1 inwall is provided with an annular groove 10, annular groove 10 is provided with O-ring seal 11, make to seal between stifle and fire hydrant by O-ring seal 11, gas leakage is avoided to leak, in the middle part of stifle body 1 inwall, indent is formed with a cavity, cavity upper end is provided with the relief hole 12 leading to stifle body 1 upper surface, pressure relief device 2 is installed in cavity, this stifle is by being provided with pressure relief device 2, make when using fire hydrant to need to open stifle, first the gases at high pressure inside stifle and water can be discharged by relief hole 12 by pressure relief device 2, thus prevent the gases at high pressure inside stifle and water ejection from causing unnecessary injury to operating personnel, effectively improve the safety in utilization of this stifle.
In the utility model, described pressure relief device 2 comprises a spool 21 and connects the elastic parts of spool 21, described spool 21 stretches out in stifle body 1 upper surface through relief hole 12, operating personnel are made to open from stifle external control pressure relief device 2 or to close by spool 21, described elastic parts comprises a spring 22, spring 22 is preferably turriform spring, described spring 22 top is connected with valve seal cushion rubber 23, spring 22 bottom is limited in cavity by jump ring 24, valve seal cushion rubber 23 is headed on by spring 22 and is sealed by relief hole 12, valve seal cushion rubber 23 upper end connects spool 21, spool 21 end is provided with draw ring hole 210, draw ring hole 210 is equipped with draw ring 211, spool 21 can be pulled by draw ring 211 by operating personnel easily, valve seal cushion rubber 23 below spool 21 is tilted thus the gases at high pressure inside stifle and water can be ejected by relief hole 12, thus stifle can be opened safely.
Described stifle body 1 lower end is socketed with adapter sleeve 3, adapter sleeve 3 outer wall is provided with non-skid rubber ring 4, and when avoiding operating personnel to operate, adapter sleeve 3 easily drops, and improves the convenience of use, adapter sleeve 3 is fast clamp type interface, and when being connected with external lug, dismounting is efficient and convenient.Concrete, adapter sleeve 3 is provided with for the pawl seat 31 in mating connection with external lug claw 32, after stifle engages with female, the male coupling that are provided with closed clamp type buckle pawl, can not Automatic-falling by stifle during External Force Acting, thus ensure the reliability of fire attack work.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, as long as the technical scheme realizing the utility model object with basic same approach all belongs within protection domain of the present utility model.
Claims (6)
1. a band pressure relief device fire coupling stifle, it is characterized in that: comprise stifle body (1), described stifle body (1) inwall is provided with an annular groove (10), described annular groove (10) is provided with O-ring seal (11), in the middle part of stifle body (1) inwall, indent is formed with a cavity, described cavity upper end is provided with the relief hole (12) leading to stifle body (1) upper surface, is provided with pressure relief device (2) in cavity.
2. one band pressure relief device fire coupling stifle according to claim 1, it is characterized in that: described pressure relief device (2) comprises a spool (21) and connects the elastic parts of spool (21), and described spool (21) stretches out in stifle body (1) upper surface through relief hole (12).
3. one band pressure relief device fire coupling stifle according to claim 2, it is characterized in that: described elastic parts comprises a spring (22), described spring (22) top is connected with valve seal cushion rubber (23), and spring (22) bottom is limited in cavity by jump ring (24).
4. one band pressure relief device fire coupling stifle according to claim 2, it is characterized in that: described spool (21) end is provided with draw ring hole (210), described draw ring hole (210) is equipped with draw ring (211).
5. one band pressure relief device fire coupling stifle according to claim 1, is characterized in that: described stifle body (1) lower end is socketed with adapter sleeve (3), and described adapter sleeve (3) outer wall is provided with non-skid rubber ring (4).
6. one band pressure relief device fire coupling stifle according to claim 5, is characterized in that: described adapter sleeve (3) is provided with for the pawl seat (31) in mating connection with external lug claw (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520737209.6U CN205042023U (en) | 2015-09-21 | 2015-09-21 | Take pressure relief device fire coupling stifle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520737209.6U CN205042023U (en) | 2015-09-21 | 2015-09-21 | Take pressure relief device fire coupling stifle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205042023U true CN205042023U (en) | 2016-02-24 |
Family
ID=55335642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520737209.6U Active CN205042023U (en) | 2015-09-21 | 2015-09-21 | Take pressure relief device fire coupling stifle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205042023U (en) |
-
2015
- 2015-09-21 CN CN201520737209.6U patent/CN205042023U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |