CN208619786U - A kind of breathing pressure reducing valve - Google Patents
A kind of breathing pressure reducing valve Download PDFInfo
- Publication number
- CN208619786U CN208619786U CN201821308083.0U CN201821308083U CN208619786U CN 208619786 U CN208619786 U CN 208619786U CN 201821308083 U CN201821308083 U CN 201821308083U CN 208619786 U CN208619786 U CN 208619786U
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- CN
- China
- Prior art keywords
- pressure
- reducing valve
- pressure reducing
- pressure chamber
- breathing
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of breathing pressure reducing valves, rotation hand wheel is set on the outer wall of the pressure-air input port of pressure reducing valve casing by collar nut, clamp nut is provided between collar nut front end and pressure-air input port, the front end of clamp nut is embedded to be cased with sealing rubber ring, sealing fixing bolt is provided in pressure reducing valve casing, the high-pressure chamber of sealing fixing bolt is connected with pressure-air input port, the upper outer of high-pressure chamber is provided with middle pressure chamber body, high-pressure chamber inner upper is provided with first piston, the top of first piston body is provided with adjusting bolt, high-pressure chamber, second piston body is provided between middle pressure chamber body, second piston body passes through the relief spring being positioned above and is arranged in middle pressure chamber body, the side of middle pressure chamber body is provided with outlet passageway and is connected with middle pressure output port, outlet Safety valve body is connected on channel.The utility model breaks down when pressure reducing valve, and safety valve body can automatically turn on discouraged, raising security performance.
Description
Technical field
The utility model relates to air respiratorresuscitator component technology fields, and in particular to a kind of breathing pressure reducing valve.
Background technique
Pressure reducing valve is breathed, is applied in air respiratorresuscitator, effect is to reduce to high pressure gas in gas cylinder in 5-9bar
It calms the anger body, then is transported in breathing mask by middle pressure pipe and is used for user of service's eupnea, be the key that air respiratorresuscitator
Component.Currently, breathing pressure reducing valve on the market, is inside not provided with safety valve structure, when breathing pressure reducing valve loses to pressure-air
Depressurization when (such as relief spring damage or diaphragm, valve damage), pressure-air, can be to using without depressurizing directly output
Personnel damage.Moreover, breathing pressure reducing valve casing, under long-term moist environment, get rusty easily corrosion, influences using the longevity
Life.Finally, the pressure-air input port leakproofness of breathing pressure reducing valve is bad, it is easy to appear gas leak phenomenon, influences breathing decompression
The using effect of valve.
Utility model content
The purpose of the utility model is to overcome the problems of existing breathing pressure reducing valves.The breathing of the utility model subtracts
Pressure valve increases safety valve body, and when pressure reducing valve breaks down, safety valve body can automatically turn on discouraged, raising security performance, and high
Air input mouth good seal performance is pressed, and is provided with nickel coating, corrosion resistance can be increased, prolonged the service life, structure is new
Grain husk, it is convenient to realize, has a good application prospect.
In order to achieve the above object, the technical scheme adopted by the utility model is
A kind of breathing pressure reducing valve, including rotation hand wheel, pressure reducing valve casing and safety valve body,
The rotation hand wheel is set on the outer wall of the pressure-air input port of pressure reducing valve casing, institute by collar nut
It states and is provided with clamp nut between collar nut front end and pressure-air input port, the front end of the clamp nut is embedded
Sealing rubber ring is cased with,
Sealing fixing bolt is provided in the pressure reducing valve casing, the high-pressure chamber and high pressure of the sealing fixing bolt are empty
Gas input port is connected, and the upper outer of the high-pressure chamber is provided with middle pressure chamber body, and the high-pressure chamber inner upper is set
It is equipped with first piston body, the top of the first piston body is provided with adjusting bolt, sets between the high-pressure chamber, middle pressure chamber body
It is equipped with second piston body, is provided with relief spring above the second piston body,
The first piston body moves up under the promotion of pressure-air, and there are gap, high pressure gas between second piston body
Body enters middle pressure chamber body after going out decompression in this gap, and the side of medium pressure cavity is provided with outlet passageway and middle pressure exports
Port is connected, and safety valve body is connected on the outlet passageway, and the safety valve body, middle pressure output port are arranged in parallel, and
Extend pressure reducing valve casing in the outlet end of the two.
A kind of breathing pressure reducing valve above-mentioned, the outer wall of the rotation hand wheel are provided with the arc groove being spacedly distributed, institute
Arc groove is stated convenient for hand-held.
A kind of breathing pressure reducing valve above-mentioned is provided with outlet side gasket in medium pressure output port.
A kind of breathing pressure reducing valve above-mentioned, the surface of the pressure reducing valve casing is provided with nickel coating.
A kind of breathing pressure reducing valve above-mentioned is provided with rubber nut cap, the serum cap cap above the adjusting bolt
Close the sealing on pressure reducing valve casing, for middle pressure chamber body.
A kind of breathing pressure reducing valve above-mentioned is additionally provided with high-voltage output end in pressure reducing valve casing below the safety valve body
Mouthful, the High voltage output port is parallel to safety valve body setting, and one end of the High voltage output port is connected with high-pressure chamber,
High voltage output gasket is provided in the High voltage output port.
A kind of breathing pressure reducing valve above-mentioned is provided with the first filter screen in the pressure-air input port.
The beneficial effects of the utility model are: the breathing pressure reducing valve of the utility model, increases safety valve body, works as pressure reducing valve
It breaking down, safety valve body can automatically turn on discouraged, raising security performance, and pressure-air input port good seal performance, and
It is provided with nickel coating, corrosion resistance can be increased, prolonged the service life, structure novel, it is convenient to realize, before having good application
Scape.
Detailed description of the invention
Fig. 1 is the left front sectional view of the breathing pressure reducing valve of the utility model；
Fig. 2 is the right lateral side cross-sectional view of the breathing pressure reducing valve of the utility model；
Fig. 3 is the structure chart of the breathing pressure reducing valve of the utility model.
Attached meaning marked in the figure is as follows:
1: rotation hand wheel；101: arc groove；2: pressure reducing valve casing；3: safety valve body；4: collar nut；5: compressing spiral shell
It is female；6: sealing rubber ring；7: sealing fixing bolt；701: high-pressure chamber；702: middle pressure chamber body；703: first piston body；704:
Adjust bolt；705: second piston body；706: relief spring；8: pressure-air input port；9: outlet passageway；10: middle pressure is defeated
Exit port；11: the first filter screens；12: rubber nut cap；13: outlet side gasket；14: High voltage output port；15: High voltage output
Gasket.
Specific embodiment
Below in conjunction with Figure of description, the utility model is further described.
As shown in Figure 1, Figure 2 and Figure 3, the breathing pressure reducing valve of the utility model, including rotation hand wheel 1,2 and of pressure reducing valve casing
Safety valve body 3,
The rotation hand wheel 1 by collar nut 4 be set on pressure reducing valve casing 2 pressure-air input port 8 it is outer
Wall is provided with clamp nut 5 between 4 front end of collar nut and pressure-air input port 8, the clamp nut 5
Front end is embedded to be cased with sealing rubber ring 6,
Be provided in the pressure reducing valve casing 2 sealing fixing bolt 7, it is described sealing fixing bolt 7 high-pressure chamber 701 with
Pressure-air input port 8 is connected, and the upper outer of the high-pressure chamber 701 is provided with middle pressure chamber body 702, the high pressure chest
701 inner upper of body is provided with first piston body 703, and the top of the first piston body 703, which is provided with, adjusts bolt 704, institute
It states and is provided with second piston body 705 between high-pressure chamber 701, middle pressure chamber body 702, the top setting of the second piston body 705
There is relief spring 706, the first piston body 703 moves up under the promotion of pressure-air, exists between second piston body 705
Gap, high pressure gas enter middle pressure chamber body 702 after going out decompression in this gap, and the side of medium pressure cavity 702 is provided with
Outlet passageway 9 is connected with middle pressure output port 10, is connected with safety valve body 3 on the outlet passageway 9, the safety valve body 3,
Middle pressure output port 10 is arranged in parallel, and pressure reducing valve casing 2 is extended in the outlet end of the two.
Preferably, the outer wall of the rotation hand wheel 1 is provided with the arc groove 101 being spacedly distributed, the arc groove
101 convenient for hand-held, convenient for being turned on or off for rotation rotation hand wheel adjustment pressure-air input port 8.
Preferably, be provided with outlet side gasket 13 in medium pressure output port 10, in guarantee pressure output port 10 with
The leakproofness that pressure reducing valve casing 2 connects.
Preferably, the surface of the pressure reducing valve casing 2 is provided with nickel coating, can increase the anticorrosive of pressure reducing valve casing 2
Property, corrosion is prevented, guarantees the service life of pressure reducing valve casing 2.
Preferably, the top for adjusting bolt 704 is provided with rubber nut cap 12, and the lid of rubber nut cap 12, which closes, to depressurize
On valve chest 2, for the sealing of middle pressure chamber body 702, sealing effect is good, can also remove 12 periodic cleaning middle pressure chamber of rubber nut cap
Body 702 and high-pressure chamber 701 guarantee clean degree.
Preferably, High voltage output port 14, the height are additionally provided in the pressure reducing valve casing 2 of 3 lower section of safety valve body
Pressure output port 14 is parallel to the setting of safety valve body 3, and one end of the High voltage output port 14 is connected with high-pressure chamber 701,
It is provided with High voltage output gasket 15 in the High voltage output port 14, guarantees that High voltage output port 14 and pressure reducing valve casing 2 connect
The sealing at place is connect, High voltage output port 14 is opened as needed when can be, for the output of pressure-air, is suitable for
Special occasions, capable of emitting alarm remind user.
Preferably, it is provided with the first filter screen 11 in the pressure-air input port 8, guarantees gas from the output end of gas
Body enters the cleannes of high-pressure chamber 701.
The breathing pressure reducing valve of the utility model, working principle are as follows: when pressure reducing valve loses the depressurization to pressure-air
When (such as relief spring damage or diaphragm, valve damage), pressure-air is without depressurizing directly output, to avoid damage resulting from
Evil, the setting safety valve body of the utility model, under normal circumstances, when thorax chamber pressure is not more than 8.5bar, safety valve body is in
Closed state, when sealing fixing bolt breaks down, when thorax chamber pressure reaches 10bar-12 bar, safety valve body can be automatically turned on
Lose heart, effectively prevents the injury to user of service.Under normal operating conditions, when pressure-air enters the height in pressure reducing valve casing
When pressing cavity, pressure is directly acted on first piston body, moves up first piston body, is adjusted on bolt until being scheduled on.
At this point, high pressure gas is depressurized into gap herein is crossed, after decompression there are certain gap between first piston body and second piston body
Gas flow in middle pressure chamber body, directly act on second piston body, move up second piston body, and compress decompression bullet
Spring reaches balance.If the gas pressure after decompression is excessive or too small, moved up and down, and driven first day by adjusting bolt
Piston body is up and down to change the gap pressure regulation between second piston body.
In conclusion the breathing pressure reducing valve of the utility model, increases safety valve body, when pressure reducing valve failure, safety
Valve body can automatically turn on discouraged, raising security performance, and pressure-air input port good seal performance, and be provided with nickel coating,
Corrosion resistance can be increased, prolonged the service life, structure novel, it is convenient to realize, has a good application prospect.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention.The utility model requires protection scope
It is defined by the appending claims and its equivalent thereof.
Claims (7)
1. a kind of breathing pressure reducing valve, it is characterised in that: including rotation hand wheel (1), pressure reducing valve casing (2) and safety valve body (3),
The rotation hand wheel (1) is set on the pressure-air input port (8) of pressure reducing valve casing (2) by collar nut (4)
Outer wall, be provided with clamp nut (5), the pressure between collar nut (4) front end and pressure-air input port (8)
The front end of tight nut (5) is embedded to be cased with sealing rubber ring (6),
It has been equipped with sealing fixing bolt (7) on the pressure reducing valve casing (2), the sealing fixing bolt (7) will depressurize valve casing
High-pressure chamber (701) are formed in body (2), the high-pressure chamber (701) is connected with pressure-air input port (8), the height
The upper outer of pressure cavity (701) is provided with middle pressure chamber body (702), and high-pressure chamber (701) inner upper is provided with first
Piston body (703), the top of the first piston body (703) be provided with adjust bolt (704), the high-pressure chamber (701), in
It is provided with second piston body (705) between pressure cavity (702), is provided with relief spring above the second piston body (705)
(706),
The first piston body (703) moves up under the promotion of pressure-air, there are gap between second piston body (705),
High pressure gas enters middle pressure chamber body (702) after going out decompression in this gap, and the side of medium pressure cavity (702) is provided with out
Gas channel (9) is connected with middle pressure output port (10), is connected with safety valve body (3), the safety on the outlet passageway (9)
Valve body (3), middle pressure output port (10) are arranged in parallel, and pressure reducing valve casing (2) are extended in the outlet end of the two.
2. a kind of breathing pressure reducing valve according to claim 1, it is characterised in that: the outer wall of the rotation hand wheel (1) is arranged
There is the arc groove (101) being spacedly distributed, the arc groove (101) is convenient for hand-held.
3. a kind of breathing pressure reducing valve according to claim 1, it is characterised in that: setting in medium pressure output port (10)
There are outlet side gasket (13).
4. a kind of breathing pressure reducing valve according to claim 1, it is characterised in that: the surface of the pressure reducing valve casing (2) is set
It is equipped with nickel coating.
5. a kind of breathing pressure reducing valve according to claim 1, it is characterised in that: set above the adjusting bolt (704)
It is equipped with rubber nut cap (12), rubber nut cap (12) lid closes on pressure reducing valve casing (2).
6. a kind of breathing pressure reducing valve according to claim 1, it is characterised in that: the decompression below the safety valve body (3)
It is additionally provided with High voltage output port (14) in valve chest (2), the High voltage output port (14) is parallel to safety valve body (3) and sets
It sets, one end of the High voltage output port (14) is connected with high-pressure chamber (701), setting in the High voltage output port (14)
There are High voltage output gasket (15).
7. a kind of breathing pressure reducing valve according to claim 1, it is characterised in that: in the pressure-air input port (8)
It is provided with the first filter screen (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821308083.0U CN208619786U (en) | 2018-08-14 | 2018-08-14 | A kind of breathing pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821308083.0U CN208619786U (en) | 2018-08-14 | 2018-08-14 | A kind of breathing pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208619786U true CN208619786U (en) | 2019-03-19 |
Family
ID=65716748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821308083.0U Withdrawn - After Issue CN208619786U (en) | 2018-08-14 | 2018-08-14 | A kind of breathing pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208619786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758040A (en) * | 2018-08-14 | 2018-11-06 | 江苏华燕船舶装备有限公司 | A kind of breathing pressure reducing valve |
-
2018
- 2018-08-14 CN CN201821308083.0U patent/CN208619786U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758040A (en) * | 2018-08-14 | 2018-11-06 | 江苏华燕船舶装备有限公司 | A kind of breathing pressure reducing valve |
| CN108758040B (en) * | 2018-08-14 | 2023-08-15 | 江苏华燕船舶装备有限公司 | Respiration pressure reducing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190319 Effective date of abandoning: 20230815 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190319 Effective date of abandoning: 20230815 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |