CN204619108U - A kind of oxygen absorption machine pressure maintaining valve - Google Patents
A kind of oxygen absorption machine pressure maintaining valve Download PDFInfo
- Publication number
- CN204619108U CN204619108U CN201520247159.3U CN201520247159U CN204619108U CN 204619108 U CN204619108 U CN 204619108U CN 201520247159 U CN201520247159 U CN 201520247159U CN 204619108 U CN204619108 U CN 204619108U
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- CN
- China
- Prior art keywords
- valve
- lower casing
- pressure maintaining
- oxygen absorption
- air inlet
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of oxygen absorption machine pressure maintaining valve, by upper shell, valve seat, needle valve, valve rod, air inlet, molecular sieve, corrugated tube, spring, hands handle, fixed screw, lower casing and gas outlet composition, upper shell is connected with the fixed screw of lower casing by right-hand member, upper shell is provided with air inlet, at air inlet 5cm place, molecular sieve is installed, lower casing is provided with gas outlet, handle inserts into the inner from the seam of upper lower casing, withstand spring, spring fitting is in corrugated tube, corrugated tube is arranged on the shell intracavity that lower casing is formed, spring withstands valve rod, valve rod is fixed on the bottom being arranged on valve seat, the top of valve seat is provided with needle valve, the syringe needle position of needle valve is inserted into the tail end of QI KOU, the oxygen absorption machine pressure maintaining valve of this utility model, delicate structure, the design of molecular sieve makes the purity of oxygen greatly improve, prevent entering of foreign gas.
Description
Technical field
This utility model relates to medical instruments field, particularly a kind of oxygen absorption machine pressure maintaining valve.
Background technology
Pressure maintaining valve (having another name called decompression venting valve); air relief valve is that the aperture of the opening and closing element adopted in application valve body is to regulate the flow of medium; the pressure of medium is reduced; simultaneously by the aperture of the effect adjustment opening and closing element of downstream pressure; downstream pressure is kept within the specific limits; when inlet pressure constantly changes; keep outlet pressure in the scope of setting; utensil is produced in protection life thereafter; its advantage comprises: Stress control is reliable and stable; pilot valve, main valve continuous operation, disturbances is continuous, steady, affects little by inlet pressure.Easy to operate, after operating pressure is set up, when upstream pressure or flow variation, main valve regulates automatically, stabilizes downstream pressure.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of delicate structure, and the design of molecular sieve makes the purity of oxygen greatly improve, and prevents the oxygen absorption machine pressure maintaining valve entered of foreign gas, to solve the above-mentioned multinomial defect caused in prior art.
For achieving the above object, this utility model provides following technical scheme: a kind of oxygen absorption machine pressure maintaining valve, by upper shell, valve seat, needle valve, valve rod, air inlet, molecular sieve, corrugated tube, spring, hands handle, fixed screw, lower casing and gas outlet composition, upper shell is connected with the fixed screw of lower casing by right-hand member, upper shell is provided with air inlet, at air inlet 5cm place, molecular sieve is installed, lower casing is provided with gas outlet, handle inserts into the inner from the seam of upper lower casing, withstand spring, spring fitting is in corrugated tube, corrugated tube is arranged on the shell intracavity that lower casing is formed, spring withstands valve rod, valve rod is fixed on the bottom being arranged on valve seat, the top of valve seat is provided with needle valve, the syringe needle position of needle valve is inserted into the tail end of QI KOU.
Preferably, described needle-like valve pocket has silica gel sheath.
Preferably, described handle is designed with 0.5mm unit scale.
Preferably, described air inlet is provided with sealing rubber ring.
Preferably, upper shell is gone out described in and lower casing inwall scribbles polytetrafluorethylecoatings coatings.
The beneficial effect of above technical scheme is adopted to be: needle-like valve pocket has silica gel sheath, and such design makes the seal of needle valve be enhanced, and improves the voltage regulation result of pressure maintaining valve; Handle is designed with 0.5mm unit scale, such design convenient operation person regulates the degree of tightness state of needle valve by handle, thus regulates oxygen flow; Air inlet is provided with sealing rubber ring, and such design is also the voltage regulation result in order to promote pressure maintaining valve, prevents Leakage Gas or miscellaneous QI enters, and causes fluctuation to the air pressure of pressure maintaining valve; Upper shell and lower casing inwall scribble polytetrafluorethylecoatings coatings, and such design shell is completely cut off erosion of steam, extends the service life of venting valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1---upper shell, 2---valve seat, 3---needle valve, 4---valve rod, 5---air inlet, 6---molecular sieve, 7---corrugated tube, 8---spring, 9---handle, 10---fixed screw, 11---lower casing, 12---gas outlet.
Detailed description of the invention
Preferred implementation of the present utility model is described in detail below in conjunction with accompanying drawing.
Fig. 1 shows the detailed description of the invention of a kind of oxygen absorption machine of this utility model pressure maintaining valve: a kind of oxygen absorption machine pressure maintaining valve, by upper shell 1, valve seat 2, needle valve 3, valve rod 4, air inlet 5, molecular sieve 6, corrugated tube 7, spring 8, handle 9, fixed screw 10, lower casing 11 and gas outlet 12 form, upper shell is connected with the fixed screw 10 of 1 lower casing 11 by right-hand member, upper shell 1 and lower casing 11 inwall scribble polytetrafluorethylecoatings coatings, such design shell is completely cut off erosion of steam, extend the service life of venting valve, upper shell 1 is provided with air inlet 5, at the 5cm place of air inlet 5, molecular sieve is installed, lower casing 11 is provided with gas outlet 12, air inlet 5 is provided with sealing rubber ring, such design is also the voltage regulation result in order to promote pressure maintaining valve, prevent Leakage Gas or miscellaneous QI enters, fluctuation is caused to the air pressure of pressure maintaining valve, handle 9 inserts into the inner from the seam of upper lower casing, handle 9 is designed with 0.5mm unit scale, such design convenient operation person regulates the degree of tightness state of needle valve 3 by handle 9, thus adjustment oxygen flow, withstand spring 8, spring 8 is arranged in corrugated tube 7, corrugated tube 7 is arranged on the shell intracavity that lower casing is formed, spring 8 withstands valve rod 4, valve rod 4 is fixed on the bottom being arranged on valve seat 2, the top of valve seat 2 is provided with needle valve 3, the syringe needle position of needle valve 3 is inserted into the tail end of QI KOU 5, needle valve 3 cover has silica gel sheath, such design makes the seal of needle valve be enhanced, improve the voltage regulation result of pressure maintaining valve.
Above-described is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from this utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (5)
1. an oxygen absorption machine pressure maintaining valve, it is characterized in that: by upper shell, valve seat, needle valve, valve rod, air inlet, molecular sieve, corrugated tube, spring, hands handle, fixed screw, lower casing and gas outlet composition, upper shell is connected with the fixed screw of lower casing by right-hand member, upper shell is provided with air inlet, at air inlet 5cm place, molecular sieve is installed, lower casing is provided with gas outlet, handle inserts into the inner from the seam of upper lower casing, withstand spring, spring fitting is in corrugated tube, corrugated tube is arranged on the shell intracavity that lower casing is formed, spring withstands valve rod, valve rod is fixed on the bottom being arranged on valve seat, the top of valve seat is provided with needle valve, the syringe needle position of needle valve is inserted into the tail end of QI KOU.
2. a kind of oxygen absorption machine pressure maintaining valve according to claim 1, is characterized in that: described needle-like valve pocket has silica gel sheath.
3. a kind of oxygen absorption machine pressure maintaining valve according to claim 1, is characterized in that: described handle is designed with 0.5mm unit scale.
4. a kind of oxygen absorption machine pressure maintaining valve according to claim 1, is characterized in that: described air inlet is provided with sealing rubber ring.
5. a kind of oxygen absorption machine pressure maintaining valve according to claim 1, is characterized in that: described upper shell and lower casing inwall scribble polytetrafluorethylecoatings coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520247159.3U CN204619108U (en) | 2015-04-23 | 2015-04-23 | A kind of oxygen absorption machine pressure maintaining valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520247159.3U CN204619108U (en) | 2015-04-23 | 2015-04-23 | A kind of oxygen absorption machine pressure maintaining valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204619108U true CN204619108U (en) | 2015-09-09 |
Family
ID=54038173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520247159.3U Expired - Fee Related CN204619108U (en) | 2015-04-23 | 2015-04-23 | A kind of oxygen absorption machine pressure maintaining valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204619108U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404969A (en) * | 2016-08-31 | 2017-02-15 | 浙江福立分析仪器股份有限公司 | Flow regulation monitoring system for gas chromatograph and application method thereof |
| CN111816895A (en) * | 2020-07-15 | 2020-10-23 | 山东派蒙机电技术有限公司 | Device for keeping pressure stability of hydrogen path of hydrogen fuel cell |
-
2015
- 2015-04-23 CN CN201520247159.3U patent/CN204619108U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404969A (en) * | 2016-08-31 | 2017-02-15 | 浙江福立分析仪器股份有限公司 | Flow regulation monitoring system for gas chromatograph and application method thereof |
| CN111816895A (en) * | 2020-07-15 | 2020-10-23 | 山东派蒙机电技术有限公司 | Device for keeping pressure stability of hydrogen path of hydrogen fuel cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20180423 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |