CN205401852U - One -level pressure relief device for rebreather - Google Patents
One -level pressure relief device for rebreather Download PDFInfo
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- CN205401852U CN205401852U CN201620209960.3U CN201620209960U CN205401852U CN 205401852 U CN205401852 U CN 205401852U CN 201620209960 U CN201620209960 U CN 201620209960U CN 205401852 U CN205401852 U CN 205401852U
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- rebreather
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Abstract
The utility model provides an one -level pressure relief device for rebreather, include the main valve body with set up on the main valve body be used for the high -pressure gas decompression the relief pressure valve, be used for to the gas filled inflation valve of the high pressurized air source of input, be used for guaranteeing that input pressure is at the relief valve of operating pressure within range, the manometer that is used for showing input gas pressure, be used for controlling the gas circuit stop valve of opening / closing, the joint of giving vent to anger, be equipped with on the main valve body main inlet channel and link to each other with main inlet channel aerify passageway, escape way, by passageway, pressure detection passageway, air outlet channel, the inflation valve is adorned in aerifing the passageway, the relief valve is adorned in escape way, the stop valve is adorned in ending the passageway, the passageway in pressure detection is adorned to the manometer, give vent to anger to connect and adorn in air outlet channel. The utility model discloses can be used to the one -level decompression and the closing control of rebreather, have advantages such as integrated level height, structure are small and exquisite, convenient to use, safe and reliable.
Description
Technical field
This utility model relates to a kind of rebreather one-level decompressor, belongs to emergency survival technical field.
Background technology
Rebreather can meet short time besoin de respirer during underwater emergency lifesaving, gain time for personnel escapes such as the helicopter that falls into the sea, amphibious armor vehicle, naval vessels, when being solve to fall into the sea (water) accident, effective lifesaving appliance of sea rescue, can greatly reduce the injures and deaths when falling into the sea (water) accident.One-level pressure relief valve is the pass key control parts of rebreather, its effect is to be reduced to about applicable low-pressure gas by gas cylinder inner high voltage gas, its stability and safety directly affect rebreather supply stability, safety and comfortableness, and the effect in respiratory organ air supply system is most important under water.Existing rebreather stop valve is with air relief valve for separate design, and volume is big, weight is high and comfort is poor, requires that higher its portability of occasion is very poor especially for volume and weight.
Summary of the invention
Goal of the invention of the present utility model is in that to overcome the above-mentioned deficiency of prior art to provide the one-level decompressor that a kind of integrated level is high, volume is little, meets the requirement of rebreather one-level decompression.
The technical solution of the utility model is: include a main valve body and be arranged on main valve body the air relief valve for high pressure air reducing, for charge valve inflate to input high-pressure air source, for ensure input pressure relief valve in working pressure range, for show input gas pressure Pressure gauge, for control gas circuit open/closedown stop valve, air outlet adapter；Described main valve body is provided with main inlet channel and the filling channel being connected with main inlet channel, escape way, cut-off passage, pressure sensing channel, outlet passageway；Described charge valve is loaded on filling channel；Relief valve is loaded on escape way；Stop valve is loaded on cut-off passage；Pressure gauge is loaded on pressure sensing channel；Air outlet adapter is loaded on outlet passageway.
The described air relief valve air relief valve valve rod that to include being loaded in main valve body for linear motion, the relief spring being loaded between main valve body and air relief valve valve rod.Described air relief valve adopts available Throttle Principle to be stable low-pressure gas by high pressure air reducing.
Flap that described stop valve includes being loaded in main valve body, the switching knob being in transmission connection through stop valve valve rod and flap, opening and closing for showing stop valve opened/closed state identify.Described stop valve adopts sealing surface mode to seal, and drives flap to move along valve seat centrage by knob and valve rod, to realize the closure or openness of valve.
Described charge valve is retroaction check valve; utilize internal high-pressure gas to realize the one-way sealing of inflation spool, including the charge valve valve body being connected with main valve body, be loaded on inflating spool, be loaded on the gas-filled valve protective cover of charge valve valve body outer end between charge valve valve body and main valve body.
Relief valve adopts positive arch rupture disk, rupture disk explosion earial drainage after this utility model porch gas pressure exceedes safe pressure.
Described Pressure gauge is Bourdon tube pressure gauge, is used for showing the pressure of gas in connected gas cylinder.
Described air outlet adapter is But rotary joint, gas output after utilizing two ends seal form to reduce pressure, and air outlet adapter can realize 360 ° and rotate to facilitate use.
The parts such as main valve body and air relief valve, stop valve, charge valve, air inlet and gas outlet in described one-level decompressor mainly adopt resistant material to make, and carry out surface treatment to improve its anti-seawater corrosion ability.
Compared with prior art, this utility model integrated level is higher, compact conformation, volume and weight are less, substantially increases portability and the comfort of equipment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the B-B sectional view of Fig. 1.
Fig. 5 is the structural representation of opening and closing mark.
Detailed description of the invention
In Fig. 1, Fig. 2, this utility model is made up of parts such as air relief valve (A3), stop valve (A6), charge valve (A1), relief valve (A5), Pressure gauge (A2) and air outlet adapters (A4), and all parts are fully integrated one.
In Fig. 3, Fig. 4, Fig. 5, main valve body (1) is provided with main inlet channel (26) the filling channel (27) being connected with main inlet channel set gradually, escape way (25), cut-off passage (21), pressure sensing channel (5), outlet passageway (16)；Charge valve (A1) is loaded on filling channel (29)；Relief valve (A5) is loaded on escape way (25)；Stop valve (A6) is loaded on cut-off passage (21)；Pressure gauge (A2) is loaded on pressure sensing channel (5)；Air outlet adapter (A4) is loaded on outlet passageway (16).
Air relief valve (A3) is connected with high-pressure air source by input interface screw thread (A7), the opening and closing of gas circuit are controlled by stop valve (A6), gases at high pressure are by after air relief valve (A3) decompression, exported by air outlet adapter (A4), relief valve (A5) ensures that input pressure is in working pressure range simultaneously, Pressure gauge (A2) shows the pressure of input gas, can pass through charge valve (A1) and inflate to input high-pressure air source (gas cylinder or pressure vessel).
It is internal for linear motion that air relief valve (A3) adopts piston reducing valve, air relief valve valve rod (6) to be arranged on main valve body (1), realizes the sealing with main valve body (1) and bonnet (8) by O；Relief spring (7) is arranged between main valve body (1) and valve rod (6).After stop valve is opened, gases at high pressure are by throttle orifice (22) decompression between main valve body (1) and valve rod (6), when exporting (23) pressure and increasing, the pressure acting on valve rod (6) upper surface increases, and valve rod (6) moves down, and throttle hole area reduces, outlet pressure reduces, with should outlet pressure reduce time, make outlet pressure increase by regulating, so that outlet pressure is stably at set outlet pressure.
Stop valve (A6) realizes the on-off control of gases at high pressure gas circuit by flap (12), and stop valve switching knob (15) is by square groove A(28) it is connected with valve rod (13), and utilize locking spring (19) and nut (20) fixing and locking；Valve seat (14) is connected with main valve body (1) by screw thread, utilizes O to realize sealing；Valve rod (13) is by square groove B(24) it is connected with flap (12), utilize black box (17) to realize the sealing with valve seat (14)；Red opening and closing mark (18) is connected with valve seat (14) by screw thread, and by four square groove C(29) coordinate with switching knob (15).Revolving stop valve switching knob (15) counterclockwise, valve rod (13) rotates, valve rod (13) is by square groove C(29) coordinate drive flap (12) turn to make it for linear motion to the right along valve seat (14), realize the unlatching of stop valve, Simultaneous Switching knob (15) is by square groove C(29) drive opening and closing mark (18) to rotate around valve seat (14) and for linear motion to the right observe red mark to the line of rabbet joint that cannot pass through switching knob (15), for pointing out now stop valve to be in opening；The stop valve switching knob (15) that in like manner turns clockwise realizes the Guan Bi of stop valve, and red opening and closing mark (18) blocks the line of rabbet joint of switching knob (15) completely to point out now stop valve to be in closure state.
Charge valve (A1) is retroaction check valve, and charge valve valve body (3) is connected with main valve body (1) by screw thread, and adopts O to seal；Inflation spool (2) is arranged between charge valve valve body (3) and main valve body (1), and is realized the one-way sealing of charge valve by O；Gas-filled valve protective cover (4) adopts with charge valve valve body (3) threadeds to prevent dust or greasy dirt under non-inflated state from entering inflation inlet.During inflation, high-pressure air source is connected with charge valve valve body (3) by input interface screw thread (A7), inflation spool (2) left gas pressure is higher than right side, inflation spool (2) moves to right, and gas is by inflating the spool (2) the entrance main valve body in gap with charge valve valve body (3) to input gas end source of the gas inflation；When stopping inflation, inflation spool (2) Top right gas pressure is higher than left side, and inflation spool (2) moves to left, and prevents gas from leaking by the sealing of O realization inflation spool (2) with inflation valve body (3).
Relief valve (A5) adopts positive arch rupture disk, is made up of nickel alloy material, and its burst pressure is 30MPa ~ 33MPa, its relieving capacity >=1000L/min.
Pressure gauge (A2) adopts Bourdon tube pressure gauge, is connected with main valve body (1) by screw thread, and adopts O to seal, and its shell adopts HPb59-1 ledrite material to make, and panel adopts transparent plastic matter.Manometric range is 0～30MPa, and minimum scale unit is 2MPa, and precision is 2.5 grades.
Air outlet adapter (A4) adopts But rotary joint, and anchor tip (11) is connected with main valve body (1) by screw thread, and adopts O to seal；Swivel joint (10) adopts both sides O sealing means to realize the sealing with anchor tip (11), and adjusts the distance between main valve body (1) by sleeve (9), it is prevented that interfere with relief valve when swivel joint (10) rotates.
Claims (7)
1. a rebreather one-level decompressor, it is characterised in that: include a main valve body (1) and be arranged on main valve body (1) for high pressure air reducing air relief valve (A3), for input high-pressure air source inflation charge valve (A1), for ensure input pressure relief valve (A5) in working pressure range, for show input gas pressure Pressure gauge (A2), for control gas circuit open/close stop valve (A6), air outlet adapter (A4)；Described main valve body (1) is provided with main inlet channel (26) and the filling channel (27) being connected with main inlet channel, escape way (25), cut-off passage (21), pressure sensing channel (5), outlet passageway (16)；Described charge valve (A1) is loaded on filling channel (29)；Relief valve (A5) is loaded on escape way (25)；Stop valve (A6) is loaded on cut-off passage (21)；Pressure gauge (A2) is loaded on pressure sensing channel (5)；Air outlet adapter (A4) is loaded on outlet passageway (16).
2. rebreather one-level decompressor according to claim 1, it is characterised in that: the relief spring (7) that described air relief valve (A3) includes being loaded on air relief valve valve rod (6) for linear motion in main valve body (1), is loaded between main valve body (1) and air relief valve valve rod (6).
3. rebreather one-level decompressor according to claim 1, it is characterised in that: flap (12) that described stop valve (A6) includes being loaded in main valve body (1), the switching knob (15) being in transmission connection through stop valve valve rod (13) and flap (12), for showing opening and closing mark (18) of stop valve opened/closed state.
4. rebreather one-level decompressor according to claim 1; it is characterized in that: described charge valve (A1) is retroaction check valve, including the charge valve valve body (3) being connected with main valve body (1), the inflation spool (2) being loaded between charge valve valve body (3) and main valve body (1), the gas-filled valve protective cover (4) that is loaded on charge valve valve body (3) outer end.
5. rebreather one-level decompressor according to claim 1, it is characterised in that: relief valve (A5) adopts positive arch rupture disk.
6. rebreather one-level decompressor according to claim 1, it is characterised in that: described Pressure gauge (A2) is Bourdon tube pressure gauge.
7. rebreather one-level decompressor according to claim 1, it is characterised in that: described air outlet adapter (A4) is But rotary joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620209960.3U CN205401852U (en) | 2016-03-18 | 2016-03-18 | One -level pressure relief device for rebreather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620209960.3U CN205401852U (en) | 2016-03-18 | 2016-03-18 | One -level pressure relief device for rebreather |
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| Publication Number | Publication Date |
|---|---|
| CN205401852U true CN205401852U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620209960.3U Active CN205401852U (en) | 2016-03-18 | 2016-03-18 | One -level pressure relief device for rebreather |
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| CN (1) | CN205401852U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022923A (en) * | 2019-12-30 | 2020-04-17 | 深圳市绿航星际太空科技研究院 | Bottleneck valves of hydrogen cylinder |
| CN115899341A (en) * | 2023-02-27 | 2023-04-04 | 新乡市华航航空液压设备有限公司 | Novel take automatic function of breathing in absolute pressure relief pressure valve |
-
2016
- 2016-03-18 CN CN201620209960.3U patent/CN205401852U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022923A (en) * | 2019-12-30 | 2020-04-17 | 深圳市绿航星际太空科技研究院 | Bottleneck valves of hydrogen cylinder |
| CN115899341A (en) * | 2023-02-27 | 2023-04-04 | 新乡市华航航空液压设备有限公司 | Novel take automatic function of breathing in absolute pressure relief pressure valve |
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