CN204099654U - A kind of gas ratio valve - Google Patents
A kind of gas ratio valve Download PDFInfo
- Publication number
- CN204099654U CN204099654U CN201420523494.7U CN201420523494U CN204099654U CN 204099654 U CN204099654 U CN 204099654U CN 201420523494 U CN201420523494 U CN 201420523494U CN 204099654 U CN204099654 U CN 204099654U
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- spool
- fusiformis
- valve
- external axle
- 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.)
- Expired - Fee Related
Links
- 239000007789 gas Substances 0.000 description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a kind of gas ratio valve, comprise the valve body being provided with valve pocket, steam outlet pipe joint and 2 suction tude joints, the shaft axis internal axle sleeve on the same line and external axle sleeve that are communicated with 2 suction tude joints is respectively provided with in valve pocket, suction port on internal axle sleeve and external axle sleeve in valve pocket in position in opposite directions, fusiformis spool is provided with between internal axle sleeve and external axle sleeve, suction port on the conical surface body at these fusiformis spool two ends and internal axle sleeve and external axle sleeve can form conical surface seal, the inner end of fusiformis spool is connected with the Returnning spring be located in internal axle sleeve, the outer end of fusiformis spool is provided with the adjusting knob being threaded connection and being fixed in external axle sleeve.The utility model improves gas inlet amount ratio precision, efficiently solves the problem when needing to be not closed completely when closing one of them air inlet.
Description
Technical field
The utility model relates to medical breathing machine equipment technical field, is a kind of gas ratio valve specifically.
Background technique
The breathing gas that medical breathing machine is supplied to patient is formed by air and oxygen mix, and these the two kinds of gases deriving from air and oxygen source need to reoffer to respiratory machine after empty oxygen mixer mixes.Gas ratio valve is a critical piece of sky oxygen mixer, can pass through the air inflow of adjustment air and oxygen, to realize providing the breathing gas meeting sky oxygen proportion requirement.By sky in Proportional valve, oxygen suction port place, existing Proportional valve is generally respectively provided with that taper valve core formed can the air inlet switch of conical surface seal, two taper valve cores in opposite directions straight line connect, with arrange with the spring at taper valve core two ends and adjust knob and match, adjust the air inflow scale of air and oxygen.Usually there is empty oxygen aeration ratio and control inaccurate problem in the Proportional valve of this structure, and, when needs provide single gas, also there is the situation that another kind of air leakage enters.
Summary of the invention
The purpose of this utility model is for current Problems existing, provides a kind of gas ratio valve.
Main cause that inaccurate and air inlet is not closed completely is that the cone seal of axle sleeve and spool is rigid seal to cause the empty oxygen aeration ratio of existing gas ratio valve to control, when two relative axle sleeves or spool shaft axis not on the same line time, the problems referred to above will be there are, even if the shaft axis of two axle sleeves can on same shaft axis, it is identical that two spool size dimensions also make, and the problem that also can exist owing to installing makes two spools shaft axis in use not on the same line.The method solved is the concentricity of the shaft axis simultaneously improving two relative axle sleeves or spool.
Based on above-mentioned thinking, the utility model provides a kind of gas ratio valve, comprise the valve body being provided with valve pocket, steam outlet pipe joint and 2 suction tude joints, described suction tude joint and steam outlet pipe jiont treatment are on described valve body and be connected by valve pocket, the shaft axis internal axle sleeve on the same line and external axle sleeve that are communicated with 2 suction tude joints is respectively provided with in described valve pocket, suction port on described internal axle sleeve and external axle sleeve in described valve pocket in position in opposite directions, fusiformis spool is provided with between described internal axle sleeve and external axle sleeve, suction port on the conical surface body at these fusiformis spool two ends and internal axle sleeve and external axle sleeve can form conical surface seal, the inner end of fusiformis spool is connected with the Returnning spring be located in described internal axle sleeve, the outer end of fusiformis spool is provided with the adjusting knob being threaded connection and being fixed in external axle sleeve, described fusiformis spool can be advanced to move vertically by knob adjusting knob.
Further, described external axle sleeve is fixed on described valve body by tightening nut, is easy for installation and removal; The surface of contact of described external axle sleeve and described valve body is provided with seal ring, prevents air inlet from leaking gas from external axle sleeve.
In respiratory machine air feed process, when occurring to carry out warning when wherein a kind of gas source feed is not enough and directly ventilate by being connected individual event, the utility model also can be provided with the passage with the connection individual event connection for breather pipe of steam outlet pipe fittings in described valve body, just separately need not establish the pipeline connecting individual event connection for breather pipe again.
The utility model has following outstanding beneficial effect:
Original 2 spools are made into one-piece type spool by gas ratio valve of the present utility model, be easy to the high concentricity of the shaft axis realizing 2 spools, improve gas inlet amount ratio precision, efficiently solving the problem when needing to be not closed completely when closing one of them air inlet.
Accompanying drawing explanation
Fig. 1 is the sectional view of the structural representation of gas ratio valve of the present utility model;
Fig. 2 is the structural representation of fusiformis spool in the utility model gas ratio valve;
Fig. 3 is the utility model gas ratio valve perspective view;
Fig. 4 is sectional view and the side view of the structural representation of existing gas ratio valve;
Fig. 5 is the side view of gas ratio valve in Fig. 1;
Fig. 6 is the side view of gas ratio valve in Fig. 4;
In figure, 1-valve body, 2-steam outlet pipe joint, 3-spool, 4-external axle sleeve, 5-adjusting knob, 6-tightening nut, 7-seal ring, 8-valve pocket, 9-internal axle sleeve, 10-suction tude joint, 11-Returnning spring, 12-connects the passage of individual event connection for breather pipe, 13-fusiformis spool, the conical surface body at two ends on 14-fusiformis spool.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
embodiment:
See Fig. 1, Fig. 5 and Fig. 3, a kind of gas ratio valve, comprise the valve body 1 being provided with valve pocket 8, steam outlet pipe joint 2 and 2 suction tude joints 10, suction tude joint 10 and steam outlet pipe joint 2 to be arranged on valve body 1 and to be connected by valve pocket 8, the shaft axis internal axle sleeve 9 on the same line and external axle sleeve 4 that are communicated with 2 suction tude joints 10 is respectively provided with in valve pocket 8, suction port on internal axle sleeve 9 and external axle sleeve 4 in valve pocket 8 in position in opposite directions, fusiformis spool 13 is provided with between internal axle sleeve 9 and external axle sleeve 4, see Fig. 2, the conical surface body 14 at these fusiformis spool 13 two ends can form conical surface seal with the suction port on internal axle sleeve 9 and external axle sleeve 4, internal axle sleeve 9 is arranged in valve pocket 8, external axle sleeve 4 is fixed on valve body 1 by tightening nut 6, external axle sleeve 4 is provided with seal ring 7 with the surface of contact of valve body 1, the inner end of fusiformis spool 13 is connected with the Returnning spring 11 be located in internal axle sleeve 9, the outer end of fusiformis spool 13 is provided with the adjusting knob 5 being threaded connection and being fixed in external axle sleeve 4, fusiformis spool 13 can be advanced to move vertically by knob adjusting knob 5, when screwing adjusting knob 5, Returnning spring 11 is have compressed by fusiformis spool 13, fusiformis spool 13 is moved inward, changes the ratio of the air inflow of 2 suction tude, when outwards unscrewing adjusting knob 5, the elastic force of Returnning spring 11 promotes the outwards movement of fusiformis spool 13, the passage 12 of the connection individual event connection for breather pipe be communicated with steam outlet pipe joint 2 is also provided with in valve body 1.
See Fig. 4 and Fig. 6, compared with original gas ratio valve, gas ratio valve of the present utility model does not do very large change to original structure, just original 2 spools 3 are made into one-piece type spool 13, requiring under the prerequisite that the shaft axis of internal axle sleeve 9 and external axle sleeve 4 is coaxial, effectively ensure that the axis concentricity of fusiformis spool 13 two ends conical surface body 14, but effectively improve gas inlet amount ratio precision, solving the problem when needing to be not closed completely when closing one of them air inlet.
Be more than preferred embodiment of the present utility model, all changes done according to technical solutions of the utility model, when the function produced does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.
Claims (3)
1. a gas ratio valve, comprise the valve body (1) being provided with valve pocket (8), steam outlet pipe joint (2) and 2 suction tude joints (10), described suction tude joint (10) and steam outlet pipe joint (2) are arranged on described valve body (1), and be connected by valve pocket (8), the shaft axis internal axle sleeve on the same line (9) and external axle sleeve (4) that are communicated with 2 suction tude joints (10) is respectively provided with in described valve pocket (8), suction port on described internal axle sleeve (9) and external axle sleeve (4) in described valve pocket (8) in position in opposite directions, it is characterized in that, fusiformis spool (13) is provided with between described internal axle sleeve (9) and external axle sleeve (4), the conical surface body (14) at these fusiformis spool (13) two ends can form conical surface seal with the suction port on internal axle sleeve (9) and external axle sleeve (4), the inner end of fusiformis spool (13) is connected with the Returnning spring (11) be located in described internal axle sleeve (9), the outer end of fusiformis spool (13) is provided with the adjusting knob (5) being threaded connection and being fixed in external axle sleeve (4), described fusiformis spool (13) can be advanced to move vertically by knob adjusting knob (5).
2. gas ratio valve according to claim 1, is characterized in that, described external axle sleeve (4) is fixed on described valve body (1) by tightening nut (6), and described external axle sleeve (4) is provided with seal ring (7) with the surface of contact of described valve body (1).
3. gas ratio valve according to claim 1, is characterized in that, is also provided with the passage (12) of the connection individual event connection for breather pipe be communicated with steam outlet pipe joint (2) in described valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420523494.7U CN204099654U (en) | 2014-09-12 | 2014-09-12 | A kind of gas ratio valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420523494.7U CN204099654U (en) | 2014-09-12 | 2014-09-12 | A kind of gas ratio valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204099654U true CN204099654U (en) | 2015-01-14 |
Family
ID=52268084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420523494.7U Expired - Fee Related CN204099654U (en) | 2014-09-12 | 2014-09-12 | A kind of gas ratio valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204099654U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984455A (en) * | 2015-08-10 | 2015-10-21 | 陈思 | High-precision medical air and oxygen mixer |
| CN106015147A (en) * | 2016-07-28 | 2016-10-12 | 安徽环球传动科技有限公司 | Shuttle valve with middle position unloading function and braking system for hydraulic motor drive |
-
2014
- 2014-09-12 CN CN201420523494.7U patent/CN204099654U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984455A (en) * | 2015-08-10 | 2015-10-21 | 陈思 | High-precision medical air and oxygen mixer |
| CN106015147A (en) * | 2016-07-28 | 2016-10-12 | 安徽环球传动科技有限公司 | Shuttle valve with middle position unloading function and braking system for hydraulic motor drive |
| CN106015147B (en) * | 2016-07-28 | 2017-12-15 | 安徽环球传动科技有限公司 | A kind of shuttle valve with middle position unloading function and fluid motor-driven brakes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104295816B (en) | Intake pipe | |
| CN204099654U (en) | A kind of gas ratio valve | |
| CN206206859U (en) | A kind of quick-change type check valve-type water pipe head | |
| CN105697906B (en) | Valve adaptor connection component | |
| CN203836426U (en) | Stainless steel liner movable connector pipe fitting | |
| CN203948849U (en) | A kind of Novel water separator | |
| CN204025701U (en) | Adjustable-pressure bypass valve | |
| CN202493818U (en) | Loose joint type flow limiting device | |
| CN204147374U (en) | A kind of atomising device | |
| CN203926803U (en) | A kind of dual control electromagnetic gas proportioning valve | |
| CN208552760U (en) | Ventilator multipurpose joint | |
| CN206943525U (en) | A kind of gas self-closing valve | |
| CN205013094U (en) | Fore -set formula quick -operation joint | |
| CN102797924A (en) | Quick dual-connector device | |
| CN205402046U (en) | Novel valve member | |
| CN204922143U (en) | Loose flange connects civilian dress formula voltage regulator | |
| CN204429121U (en) | For the connection device of gas-liquid mixed instrument | |
| CN205013400U (en) | Pneumatic pumping unit | |
| CN204328083U (en) | A kind of ampoule bottle baking apparatus and Gas mixing valve thereof | |
| CN207673896U (en) | A kind of air source junction box connector | |
| CN204147774U (en) | Liquid flow mixing device | |
| CN107281600A (en) | A kind of adjustable gas compression formula atomizer gas outlet of flow | |
| CN204253981U (en) | A kind of water valve | |
| CN204201475U (en) | A kind of medical oxygen cylinder | |
| CN206468962U (en) | A kind of four-way connection |
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: 20150114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |