CN206830900U - Current stabilization gas cylinder pressure-reducing valve - Google Patents
Current stabilization gas cylinder pressure-reducing valve Download PDFInfo
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- CN206830900U CN206830900U CN201720612104.7U CN201720612104U CN206830900U CN 206830900 U CN206830900 U CN 206830900U CN 201720612104 U CN201720612104 U CN 201720612104U CN 206830900 U CN206830900 U CN 206830900U
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Abstract
The utility model discloses a kind of current stabilization gas cylinder pressure-reducing valve, including valve seat and loaded on the piston seat on valve seat, relief piston is provided between valve seat and piston seat, pressure spring is supported between relief piston and valve seat, valve rod is provided with piston seat, low-pressure connector is also associated with piston seat, low pressure air flue is provided with the low-pressure connector, safe valve element is housed on the piston seat, safety valve spring is supported with safe valve element；Flow-rate adjustment bolt is provided with the low-pressure connector, the position of the Flow-rate adjustment bolt is corresponding with low pressure air flue, the piston bar portion position of the relief piston is provided with piston and sealed, alarm air flue is provided with valve seat, the alarm air flue leads to alarm whistle, and alarm air flue is located at the top sealed under piston.The gas cylinder pressure-reducing valve not only has atmosphere gas leak protection function and gas supply regulation function, and can stablize gas supply flow and pressure, easy to operate, using comfortable.
Description
Technical field
It the utility model is related to the compressed air bottle of personal protection air respiratorresuscitator, more particularly to respirator compression empty bottle
Depressurize and flow to the gas cylinder pressure-reducing valve of respirator protecting mask, the valve has decompression and switch gas circuit effect concurrently.
Background technology
Air respiratorresuscitator is to provide that fire, dust, the personnel of harmful poisonous gas work on the spot and survivor use
People's respiratory protection equipment.Air respiratorresuscitator is equipped with a portable small portable compressed air bottle, in the compressed gas cylinder
Storage has high pressure air of the pressure for 21Mpa or so, and pressure-air during use in gas cylinder depressurizes through the pressure-reducing valve on gas cylinder
In the head-shield for transferring to protection head by appendix afterwards so that user can breathe fresh air, in above-mentioned air supply system
Gas cylinder pressure-reducing valve is one of its critical component.
Gas cylinder pressure-reducing valve is mostly to be balanced each other by the gas pressure and spring force that act on relief piston to control at present
Overflow effect processed, to reach decompression purpose.But because the compressed air bottle actually most of the time of air respiratorresuscitator is all located
In off working state, therefore compressed air in gas cylinder is always through seepage at leisure between high pressure air flue and the pressure regulation block of piston end
In decompression air cavity above to piston, and elapse, should be at originally above the piston of low-pressure state in decompression air cavity over time
Air pressure is gradually risen to high pressure conditions, the even up to air pressure in compressed air bottle, and this pressure is sufficient so that gas cylinder
The valve body and valve seat of pressure-reducing valve burst apart, and this not only causes the damage even total waster of gas cylinder pressure-reducing valve, causes equipment and personnel
Security incident, and this damage can cause compressed air fast leak in gas cylinder, make to use air in the case of emergency escape
The survivor of respirator is supplied without air, and high risks are caused to personal safety.It is different under escape and normal operating condition
User and different labor intensity its air consumption have obvious difference, and the air demand and supply of existing air respiratorresuscitator
Pressure is that homeostasis is constant, and air demand and supply gas pressure can not be adjusted, and can form serious discomfort during use, directly affect use
The operation and operation of person, also brings along potential safety hazard.Existing gas cylinder pressure-reducing valve is not provided with low-pressure alarming device, or provided with low
Press warning device its gas circuit design unreasonable, make low pressure alarming accurate not in time, increase the insecurity of user.
Utility model content
For the above-mentioned deficiency present in prior art, technical problem to be solved in the utility model is to provide a kind of tool
There is the gentle adjustment of normality leak protection, using more safe and reliable current stabilization gas cylinder pressure-reducing valve.
In order to solve the above problems, current stabilization gas cylinder pressure-reducing valve of the present utility model, including valve seat and loaded on valve seat
Piston seat, relief piston is provided between valve seat and piston seat, pressure spring, piston are supported between relief piston and valve seat
Valve rod is provided with seat, low-pressure connector is also associated with piston seat, low pressure air flue is provided with the low-pressure connector, in the work
Safe valve element is housed on obturating plug, safety valve spring is supported with safe valve element；Flow-rate adjustment is provided with the low-pressure connector
Bolt, the position of the Flow-rate adjustment bolt is corresponding with low pressure air flue, and the piston bar portion position of the relief piston, which is provided with, lives
Plug is lower to be sealed, and is provided with alarm air flue on valve seat, and the alarm air flue leads to alarm whistle, alarm air flue be located under piston seal it is upper
Side.
In said structure, due to being equipped with safe valve element on piston seat, and safety valve spring is supported with safe valve element,
Safe valve element and safety valve spring constitute gas circuit safety valve, in the case of respirator gas cylinder is in the non-normality used, once
Pressure-air in gas cylinder leaks to relief chamber above piston, and when raising its air pressure, the peace to be interlinked with the decompression air cavity
Full valve core is acted by jack-up, makes the gases at high pressure release in relief chamber, and the gas cylinder pressure-reducing valve that this is not only protected is not by high pressure gas
Body bursts apart and damaged, and highly desirable protects gas cylinder safely, safe to use and personal safety.Again due in low-pressure connector
Low pressure duct position on be provided with Flow-rate adjustment bolt, this structure allows user according to its own situation and work
Intensity and adjust the air demand to air-supply mask, both ensure that comfort, enhance safety in utilization again.Due also in valve
Alarm air flue is provided with seat, the alarm gas passage, so in the close completion of gas cylinder mesohigh compressed air, leads to alarm whistle
It is automatically switched on to the gas circuit of mouthpiece, mouthpiece ring is alarmed, reminds compressed air in user's gas cylinder to be finished, so as to protect
Protect the security of user.It is compact-sized reasonable that gas cylinder pressure-reducing valve of the present utility model also has, safe and convenient to use.
Further embodiment of the present utility model, the front end of the safe valve element seal equipped with safety valve, safety valve bullet
Spring is loaded on the rear end of safe valve element, and the front end chamber of safe valve element is connected with the relief chamber above the piston pan portion of relief piston
It is logical.It is simple and reasonable, action accurately and reliably, can in time to piston above relief chamber gases at high pressure progress release.
Further embodiment of the present utility model, the Flow-rate adjustment bolt are fastened in low-pressure connector, and the flow is adjusted
Low pressure air flue is stretched in the front end of section bolt.It is simple in construction, it can easily carry out the regulation of gas supply flow.
Preferred embodiment of the present utility model, it is provided with and lives between the piston plate portion position of the relief piston and piston seat
Seal beyond the Great Wall, the pressure spring is supported in the pressure spring chamber of valve seat, and alarm air flue leads to alarm through the pressure spring chamber
The whistle.Low pressure alarming can accurately be carried out.
Preferred embodiment of the present utility model, the piston bar portion lower end of the relief piston is equipped with pressure regulation block, in pressure regulation
The core position of piston is provided with relief passage, and pressure regulation block is located at the upper port of high pressure air flue on valve seat.The structure, which can be realized, to be subtracted
The stabilization function of the high pressure of pressure valve.
Further embodiment of the present utility model, valve rod spring is provided between the valve rod upper end and valve rod base,
The valve rod base is installed on piston seat by plate seat, and cocker is inserted with plate between plate seat and valve rod base.The structure can
Realize that the quick of high pressure air bottle opens or closes, be more suitable for promptly using.
Preferred embodiment of the present utility model, equipped with inflation valve body on the valve seat, in the filling channel of inflation valve body
It is provided with inflation valve element.The alarm whistle is installed on valve seat, and airway tube, the airway tube and high pressure gas are housed in the lower end of valve seat
Road is connected.High-pressure safety valve and pressure gauge are housed on the valve seat.The inflation, display and low pressure alarming of respirator are facilitated,
It is used conveniently and safely.
Brief description of the drawings
The utility model current stabilization gas cylinder pressure-reducing valve is described further with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of main structure diagram of embodiment of the utility model current stabilization gas cylinder pressure-reducing valve；
Fig. 2 is the overlooking the structure diagram of Fig. 1 illustrated embodiments.
In figure, 1-airway tube, 2-valve seat, 3-valve base sealing, 4-inflation valve element, 5-inflation valve body, 6-charge valve
Core seals, sealing, 11-piston seat, 12-safety on 7-alarm air flue, 8-pressure spring, 9-relief piston, 10-piston
Valve sealing, 13-safe valve element, 14-safety valve spring, 15-safe bonnet, 16-plate, 17-plate seat, 18-valve rod
Seat, 19-valve rod spring, 20-valve rod, 21-low pressure air flue, 22-Flow-rate adjustment bolt, 23-Flow-rate adjustment sealing, 24-
Sealing under low-pressure connector, 25-relief passage, 26-pressure spring chamber, 27-piston, 28-pressure regulation block, 29-high pressure air flue,
30-alarm whistle, 31-high-pressure safety valve, 32-pressure gauge.
Embodiment
Current stabilization gas cylinder pressure-reducing valve as shown in Figure 1, the lower end of valve seat 2 of the gas cylinder pressure-reducing valve is for being fastened to gas cylinder mouth
Threaded portion, twist-on has the conduit 1 stretched into gas cylinder at the top of the lower end of valve seat 2, and the root position in above-mentioned threaded portion is cased with valve
Seat sealing 3.High pressure air flue 29 is provided with along its axle center in the center of valve seat 2, the lower end of the high pressure air flue 29 is led to through conduit 1
In gas cylinder.
Piston seat 11 has been connected through a screw thread on valve seat 2, has been provided with the chamber that valve seat 2 and piston seat 11 are formed
Relief piston 9, the " T " shape structure in section of the relief piston 9, its top are piston pan portion, and bottom is then piston bar portion.Pressure regulation
The piston pan portion of piston 9 is actively placed in the corresponding chamber of piston seat 11 by sealing 10 on piston, the piston of relief piston 9
Bar portion, the base position of valve seat 2 is actively stretched into, be provided with and live between the pole socket of the valve seat 2 and the piston bar portion of relief piston 9
Plug is lower to seal 27, and sealing 27 under the piston is set on piston bar portion.Top is equipped with pressure regulation block under the bar portion of relief piston 9
28, pressure regulation block 28 is located at the upper end oral area of high pressure air flue 29, in the bar core position of relief piston 9, provided with relief passage 25, decompression
Passage 25 leads to high voltage block 28 and the binding site of high pressure air flue 29.The alarm gas being radially arranged is provided with the pole socket wall of valve seat 2
Road 7.Under normal condition, alarm air flue 7 is located at the top of sealing 27 under piston, only when gas cylinder air pressure is relatively low, relief piston 9
Move up, sealing 27 can move to the top of alarm air flue 7 under piston thereon therewith.Relief piston 9 and piston plate portion below and
High pressure spring 8 is provided between valve seat 2, pressure spring 8 is supported in the pressure spring chamber 26 of valve seat 2, and alarm air flue 7 is through pressure regulation bullet
Spring chamber 26 leads to alarm whistle 30, and the alarm whistle 30 is fixedly connected on valve seat 2.
Safe valve element 13 is housed on piston seat 11, the front end of safe valve element 13 is hermetically supported by safety valve sealing 12
In in the safe valve opening of piston seat 11, being provided with safety spring 14 between the rear end of safe valve element 13 and safe bonnet 15, peace is fixed
The passage for leading to air is provided with loaded on the safe bonnet 15 on piston seat 11.The front end chamber of safe valve element 13 is lived with pressure regulation
The relief chamber above 9 piston pan portions is filled in be connected.
The valve rod 20 of activity is provided with piston seat 11, valve rod spring is provided between the upper end of valve rod 20 and valve rod base 18
19, the valve rod base 18 is installed on piston seat 11 by plate seat 17, and card insertion has plate between the plate seat 17 and valve rod base 18
16.As long as in use, pulling open plate 16, valve rod 20 moves up in the presence of valve rod spring 19, and cause relief passage 25 with it is low
Calm the anger and 21 connect and start to supply.By lower valve rod 20 and plate 16 is inserted, valve rod 20 blocks relief passage 25 and low pressure gas
Road 21, stop supply so as to close bottle valve.
Low-pressure connector 24 is installed on piston seat 11, the low-pressure connector 24 is provided with the low pressure air flue for being used for outwards supplying
21.By Flow-rate adjustment sealing 23, hermetically twist-on has Flow-rate adjustment bolt 22, Flow-rate adjustment bolt 22 in low-pressure connector 24
Front end stretch to low pressure air flue 21, regulation Flow-rate adjustment bolt 22 can change the supply sectional area of low pressure air flue 21, so as to reach
To the effect of adjustment gas supply flow and supply gas pressure.
High-pressure safety valve 31 and pressure gauge 32, high-pressure safety valve 31 and pressure are also separately installed with valve seat 2 as shown in Figure 2
Power table 32 is connected with high pressure air flue 29.High-pressure safety valve 31 is made up of breaker bolt and blowout disk, and pressure gauge 32 is used for
Show compressed air pressure in gas cylinder.
Claims (9)
1. a kind of current stabilization gas cylinder pressure-reducing valve, including valve seat（2）And loaded on valve seat（2）On piston seat（11）, valve seat（2）With work
Obturating plug（11）Between be provided with relief piston（9）, in relief piston（9）With valve seat（2）Between be supported with pressure spring（8）, it is living
Obturating plug（11）On be provided with valve rod（20）, in piston seat（11）On be also associated with low-pressure connector（24）, the low-pressure connector（24）On
It is provided with low pressure air flue（21）, it is characterised in that：In the piston seat（11）It is upper that safe valve element is housed（13）, safe valve element（13）
On be supported with safety valve spring（14）；In the low-pressure connector（24）On be provided with Flow-rate adjustment bolt（22）, the Flow-rate adjustment
Bolt（22）Position and low pressure air flue（21）It is corresponding, the relief piston（9）Piston bar portion position be provided with piston under
Sealing（27）, in valve seat（2）It is provided with alarm air flue（7）, the alarm air flue（7）Lead to alarm whistle（30）, air flue of alarming（7）Position
Sealed under piston（27）Top.
2. current stabilization gas cylinder pressure-reducing valve according to claim 1, it is characterised in that：The safe valve element（13）Front end be equipped with
Safety valve seals（12）, safety valve spring（14）Loaded on safe valve element（13）Rear end, safe valve element（13）Front end chamber with
Relief piston（9）Piston pan portion above relief chamber be connected.
3. current stabilization gas cylinder pressure-reducing valve according to claim 1, it is characterised in that：The Flow-rate adjustment bolt（22）It is fastened to
Low-pressure connector（24）On, the Flow-rate adjustment bolt（22）Front end stretch to low pressure air flue（21）.
4. current stabilization gas cylinder pressure-reducing valve according to claim 1, it is characterised in that：The relief piston（9）Piston pan portion
Position and piston seat（11）Between be provided with piston on seal（10）, the pressure spring（8）It is supported on valve seat（2）Pressure spring
Chamber（26）In, air flue of alarming（7）Through the pressure spring chamber（26）Lead to alarm whistle（30）.
5. the current stabilization gas cylinder pressure-reducing valve according to any one of claim 1-4, it is characterised in that：The relief piston（9）
Piston bar portion lower end pressure regulation block is housed（28）, in relief piston（9）Core position be provided with relief passage（25）, pressure regulation block
（28）Positioned at valve seat（2）Upper high pressure air flue（29）Upper port.
6. the current stabilization gas cylinder pressure-reducing valve according to any one of claim 1-4, it is characterised in that：The valve rod（20）On
End and valve rod base（18）Between be provided with valve rod spring（19）, the valve rod base（18）Pass through plate seat（17）It is installed on piston seat
（11）On, in plate seat（17）And valve rod base（18）Between cocker be inserted with plate（16）.
7. the current stabilization gas cylinder pressure-reducing valve according to any one of claim 1-4, it is characterised in that：The valve seat（2）Upper dress
There is inflation valve body（5）, in inflation valve body（5）Filling channel be provided with inflation valve element（4）.
8. current stabilization gas cylinder pressure-reducing valve according to claim 1, it is characterised in that：The alarm whistle（30）It is installed on valve seat
（2）On, in valve seat（2）Lower end airway tube is housed（1）, the airway tube（1）With high pressure air flue（29）It is connected.
9. current stabilization gas cylinder pressure-reducing valve according to claim 1, it is characterised in that：The valve seat（2）It is upper that high-voltage safety is housed
Valve（31）And pressure gauge（32）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720612104.7U CN206830900U (en) | 2017-05-29 | 2017-05-29 | Current stabilization gas cylinder pressure-reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720612104.7U CN206830900U (en) | 2017-05-29 | 2017-05-29 | Current stabilization gas cylinder pressure-reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206830900U true CN206830900U (en) | 2018-01-02 |
Family
ID=60772703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720612104.7U Active CN206830900U (en) | 2017-05-29 | 2017-05-29 | Current stabilization gas cylinder pressure-reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206830900U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758037A (en) * | 2018-08-14 | 2018-11-06 | 江苏华燕船舶装备有限公司 | A kind of breathing combination valve |
| CN109058539A (en) * | 2018-09-04 | 2018-12-21 | 杨小军 | A kind of air bottle for life saving structure of relief pressure valve |
| CN110566717A (en) * | 2019-09-10 | 2019-12-13 | 赵国栋 | gas pressure reducing valve capable of realizing alarm function through ringing |
| CN110701353A (en) * | 2019-09-12 | 2020-01-17 | 凯迈（洛阳）气源有限公司 | Oxygen supply pressure reducing valve for parachuting |
-
2017
- 2017-05-29 CN CN201720612104.7U patent/CN206830900U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758037A (en) * | 2018-08-14 | 2018-11-06 | 江苏华燕船舶装备有限公司 | A kind of breathing combination valve |
| CN109058539A (en) * | 2018-09-04 | 2018-12-21 | 杨小军 | A kind of air bottle for life saving structure of relief pressure valve |
| CN109058539B (en) * | 2018-09-04 | 2024-03-12 | 杨小军 | Relief valve structure of lifesaving gas cylinder |
| CN110566717A (en) * | 2019-09-10 | 2019-12-13 | 赵国栋 | gas pressure reducing valve capable of realizing alarm function through ringing |
| CN110701353A (en) * | 2019-09-12 | 2020-01-17 | 凯迈（洛阳）气源有限公司 | Oxygen supply pressure reducing valve for parachuting |
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