CN2614693Y - Adjustable quantitative fast self-compensating combined valve - Google Patents
Adjustable quantitative fast self-compensating combined valve Download PDFInfo
- Publication number
- CN2614693Y CN2614693Y CN 03217208 CN03217208U CN2614693Y CN 2614693 Y CN2614693 Y CN 2614693Y CN 03217208 CN03217208 CN 03217208 CN 03217208 U CN03217208 U CN 03217208U CN 2614693 Y CN2614693 Y CN 2614693Y
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- valve
- quantitative
- valve body
- self
- mending
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Abstract
The utility model belongs to technical field of lifesaving equipments, in particular to an adjustable quantitative self-compensating oxygen supply apparatus in a closed-circuit oxygen supply system of a positive pressure oxygen respirator used by rescue personnel, comprising a quantitative valve body portion and a self-compensating valve body portion, the utility model is characterized in that a quantitative valve rod in the quantitative valve body of the quantitative valve body portion is fixed with a screw block, a spring and a quantitative valve block, the quantitative valve is installed on the quantitative valve block, a piston is installed in a cylinder, upper end of the piston is fixed with a butterfly spring, a regulating screw rod and a screw blind nut which are installed on the quantitative valve body, a self-compensating valve rod, a self-compensating valve and a spring of the self-compensating valve body portion, a self-compensating valve block and a top bar are installed on the lower end of the self-compensating valve body, the piston is provided with a current-limiting eyelet, the current-limiting eyelet, the screw rod, the screw blind nut and the butterfly spring are fixed by a holding nut after pressure regulation, comparing with the prior arts, the utility model has reasonable design structure, can self-compensate directly and quickly, has high sensibility and long operating life and can be used as a new pattern adjustable quantitative quickly self-compensating combination valve used for positive pressure oxygen respirators.
Description
Technical field
This utility model belongs to the lifesaving appliance technical field, and the interior adjustable quantitative of closed circuit oxygen system that is specifically related to a kind of positive pressure oxygen respirator of rescue personnel's use is mended apparatus of oxygen supply certainly.
Background technology
The positive pressure oxygen respirator that public mine rescue and chemical defence are used is a kind of closed circuit respiratory circulatory system that is hedged off from the outer world, and the time wears the protective device of use for people operation or rescue in the toxic and harmful environment.Should be quantitatively-quantitatively be to become from what mend apparatus of oxygen supply along with the variation of storage pressure, the flow of dosing hole diminishes gradually until stopping up fully in the life-time service simultaneously, in addition, rubber seal in the air tube is pressed off in high pressure exists slow phenomenon when opening, cause oxygenating to lag behind and deficiency, make automatic oxygenating can not in time fully cause the not enough and acceleration human-body fatigue of oxygenating.
Summary of the invention
This utility model has solved the quantitative oxygen supply instability of existing positive pressure oxygen respirator, automatically oxygenating can not be in time technical problem fully, a kind of no matter storage pressure height is provided, and still the adjustable quantitative that service time, length can both be stablized oxygen supply and oxygenating is automatically mended combination valve fast certainly.
This utility model is to realize like this, adjustable quantitative is fast from mending composite set, include the proportional valve body portion and mend the valve body part certainly, it is stifled to it is characterized in that screw plug, spring and proportional valve are housed on the intravital quantitative valve rod of proportional valve of proportional valve body portion, quantitative valve is contained in proportional valve and blocks up, piston is contained in the cylinder barrel, butterfly spring, adjusting screw(rod), screw-in blind nut are equipped with in the upper end of piston, and be installed on the quantitative valve body, from the valve rod of benefit certainly of mending the valve body part, mend valve, spring certainly, mend the stifled and push rod of valve certainly and be contained in from the lower end of mending valve body.
Piston is provided with the current limliting aperture, carries out being fixed by locknut after pressure is regulated with screw rod, screw-in blind nut and butterfly spring.The stifled air channel that is provided with of proportional valve described in the utility model, the air channel that the firm gas stream after quantitative valve can being opened blocks up by proportional valve flows to the piston restriction aperture, realizes quantitative oxygen supply.
Described in the utility modelly be connected with push rod from mending valve rod.
Described in the utility model from mending the stifled oxygenating air flue that is provided with of valve.
This utility model is that high pressure oxygen is depressurized to 1.9aMpa/cm through air relief valve
2Enter combinaing valve body by the oxygen supply pipe after the force value, finish blood pressure lowering for the second time and constant throttling, flow out from the combinaing valve body top, supply with adjustable constant-flow oxygen to breathing the storehouse, the oxygen that enters combinaing valve body also can make diaphragm displacement by positive pressing spring, opens fast and controls oxygenating from mending valve automatically to breathing the storehouse.
It is reasonable that this utility model compared with prior art has project organization, can be directly fast from mending; Highly sensitive, long service life is that a kind of new type of adjustable of positive pressure oxygen respirator that is used for is quantitatively fast from mending combination valve.
Description of drawings
Fig. 1 mends the structure chart of combination valve fast certainly for adjustable quantitative
Fig. 2 is for mending the main cutaway view of valve stifled (17) certainly
Fig. 3 is the left view of Fig. 2
Fig. 4 is the main cutaway view of piston (6)
Fig. 5 is the left view of Fig. 4
Fig. 6 is the main cutaway view of proportional valve stifled (8)
Fig. 7 is the left view of Fig. 6
Among the figure; The stifled quantitative valve rod 11-of the 9-quantitative valve 10-spring 12-screw plug 13-of the quantitative valve body 8-of 1-adjusting screw(rod) 2-nut 3-blind nut 4-butterfly spring 5-O RunddichtringO 6-piston 7-proportional valve is from mending valve body 14-from mending valve rod 15-from mending valve 16-spring 17-from mending the stifled 18-push rod 19-current limliting aperture 20,21 of valve, 22-oxygenating air flue 23-passage 24-air channel
The specific embodiment
With reference to the accompanying drawings embodiment is further described, present embodiment is to be used for illustrating of the present utility model, rather than this utility model is carried out any restriction.
Adjustable quantitative is fast from mending composite set, include the proportional valve body portion and mend the valve body part certainly, it is characterized in that on the quantitative valve rod 10 in the quantitative valve body 7 of proportional valve body portion screw plug 12, spring 11 and proportional valve stifled 8 being housed, quantitative valve 9 is contained on the proportional valve stifled 8, piston 6 is contained in the cylinder barrel, the upper end of piston 6 is equipped with butterfly spring 4, adjusting screw(rod) 1, is screwed in blind nut 3, and be installed on the quantitative valve body 7, from the valve rod of benefit certainly 14 of mending the valve body part, mend valve 15, spring 16 certainly, mend valve stifled 17 and push rod 18 certainly and be contained in from the lower end of mending valve body 13.Piston 6 is provided with current limliting aperture 19, carries out being fixed by locknut after pressure is regulated with screw rod, screw-in blind nut and butterfly spring.During work, open the oxygen cylinder switch, high pressure oxygen is pressed 1.9aMpa/cm in being depressurized to by air relief valve
2After, enter combination valve through pneumatic line.Because the thrust that the adjusting position of adjusting screw(rod) 1 in blind nut 3 forms to piston 6 butterfly spring 4, piston displacement, quantitative valve rod 10 is pushed away quantitative valve 9, this moment, oxygen entered screw plug 12 from mending valve body certainly, passage 23 and air channel 24 through quantitative valve rod 10 peripheries, quantitative valve 9 gaps and proportional valve stifled 8 flow to piston 6 bottoms, enter piston top by current limliting aperture 19 and go out to enter to breathe the storehouse through blind nut 3 orifice flows again.In the flow of oxygen process, because interior pressure of the elastic force of butterfly spring and piston and spring 11 elastic force have been set up an equilibrium point with pressing of quantitative valve rod 10, the oxygen of current limliting aperture 19 has been stablized constant current at this moment.Adjusting screw(rod) 1 just can obtain the constant current oxygen of different flow, and this structure is carried out the secondary blood pressure lowering in respiratory organ makes stability of flow reliably and not stop up.
When the rescue personnel carries out muscle power work by force, this moment is the air feed deficiency quantitatively, oxygen uptakes form and breathe storehouse internal pressure decline in a large number, and the membrane combination promotion is upwards opened from mending valve rod 14 and rapid in mending through oxygenating air flue 20,21,22 from the oxygen channel of mending in the valve 15 from mending push rod 18 under the effect of positive pressing spring.
Claims (5)
1, a kind of adjustable quantitative is fast from mending combination valve, include the proportional valve body portion and mend the valve body part certainly, it is characterized in that on the quantitative valve rod (10) in the quantitative valve body (7) of proportional valve body portion screw plug (12) being housed, spring (11), with proportional valve stifled (8), quantitative valve (9) is contained on the proportional valve stifled (8), piston (6) is contained in the cylinder barrel, butterfly spring (4) is equipped with in the upper end of piston (6), adjusting screw(rod) (1), screw in blind nut (3), and be installed on the quantitative valve body (7), from the valve rod of benefit certainly (14) of mending the valve body part, from mending valve (15), spring (16) is mended valve stifled (17) and push rod (18) certainly and is contained in from the lower end of mending valve body (13).
2, adjustable quantitative according to claim 1 from mending combination valve, is characterized in that described piston (6) is provided with current limliting aperture (19) fast.
3, adjustable quantitative according to claim 1 is characterized in that fast from mending composite set described proportional valve stifled (8) is provided with passage (23) and air channel (24).
4, adjustable quantitative according to claim 1 is fast from mending combination valve, it is characterized in that describedly being connected with push rod (18) from mending valve rod (14).
5, adjustable quantitative according to claim 1 is characterized in that fast from mending combination valve the described valve stifled (17) of mending certainly is provided with oxygenating air flue (20), (21), (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03217208 CN2614693Y (en) | 2003-05-09 | 2003-05-09 | Adjustable quantitative fast self-compensating combined valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03217208 CN2614693Y (en) | 2003-05-09 | 2003-05-09 | Adjustable quantitative fast self-compensating combined valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2614693Y true CN2614693Y (en) | 2004-05-12 |
Family
ID=34243382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03217208 Expired - Lifetime CN2614693Y (en) | 2003-05-09 | 2003-05-09 | Adjustable quantitative fast self-compensating combined valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2614693Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101884822A (en) * | 2010-07-23 | 2010-11-17 | 上海力申科学仪器有限公司 | Exhalation valve of breathing machine |
| CN103157163A (en) * | 2011-12-19 | 2013-06-19 | 杭州新颖氧舱有限公司 | Piston type hand and t-branch pipe integrated breathing adjuster |
-
2003
- 2003-05-09 CN CN 03217208 patent/CN2614693Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101884822A (en) * | 2010-07-23 | 2010-11-17 | 上海力申科学仪器有限公司 | Exhalation valve of breathing machine |
| CN103157163A (en) * | 2011-12-19 | 2013-06-19 | 杭州新颖氧舱有限公司 | Piston type hand and t-branch pipe integrated breathing adjuster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130509 Granted publication date: 20040512 |