CN103182135B - Volatilizer interface device - Google Patents
Volatilizer interface device Download PDFInfo
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- CN103182135B CN103182135B CN201110456976.6A CN201110456976A CN103182135B CN 103182135 B CN103182135 B CN 103182135B CN 201110456976 A CN201110456976 A CN 201110456976A CN 103182135 B CN103182135 B CN 103182135B
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Abstract
The present invention discloses a kind of Volatilizer interface device, comprise valve body, valve gap, core assembly, valve gap is arranged on valve body top, core assembly is arranged between valve body and valve gap, core assembly comprises gland, upper spring, valve rod, lower spring, sealing gasket, valve inner has air inlet cavity, for the cavity of supplying gas to anesthetic machine gas transmission, valve gap inside has gas passage, and gas passage is oppositely arranged with cavity of supplying gas, sealing gasket is positioned between the two, when the import of sealing gasket upwards shutoff gas passage, air inlet cavity forms path with cavity of supplying gas, realize gas and be delivered to anesthetic machine, when the import of cavity is supplied gas in the downward shutoff of sealing gasket, air inlet cavity and gas passage form path, realize gas and outwards export from valve gap.Contrast prior art, this Volatilizer interface device has that structure is simple, air-tightness good, work time vapour lock little, compact advantage.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of volatile device for anesthesia apparatus interface arrangement.
Background technology
Anesthesia respirator is hospital when performing the operation, and to the important medical apparatus and instruments that patient anaesthetizes sb. generally, its major function is carried out inhalation anesthetic, oxygen supply for patient and provides auxiliary or control to breathe; Anesthesia volatillizer is the important composition parts on anesthetic machine, and it provides stable by anesthetic machine to patient, concentration anaesthetizes mist accurately.
Anesthesia respirator is connected by Volatilizer interface device with anesthesia volatillizer.Therefore Volatilizer interface device is the vitals of anesthetic machine, its quality directly will affect the change of anesthesia machine system pressure, because it is directly connected with volatillizer, so its air-tightness is most important, if its air-tightness is bad, anesthetis will be caused to leak, anesthetis leaks and is not only a kind of waste, especially the one of operative doctor is anaesthetized, very big to the security implication of the quality of performing the operation and patient, there is use safety hidden danger, and the defect that when existing volatile device for anesthesia apparatus interface arrangement exists complex structure, poor air-tightness, work, vapour lock is large.
Summary of the invention
The object of the invention is to solve the problem of the defect such as vapour lock when existing volatile device for anesthesia apparatus interface arrangement exists complex structure, poor air-tightness, work is large, a kind of Volatilizer interface device is provided, it has, and structure is simple, air-tightness good, work time vapour lock little, compact advantage.
The object of the invention is to be achieved through the following technical solutions:
A kind of Volatilizer interface device, the valve gap comprising valve body and connect with it, also comprise the core assembly be arranged between valve body and valve gap, there is in valve body air inlet cavity, also there is the cavity of supplying gas to anesthetic machine gas transmission, described valve gap inside has gas passage, described core assembly comprises sealing gasket, described in supply gas cavity and gas passage be oppositely arranged, and described sealing gasket is arranged between the two, when sealing gasket upwards the import of shutoff gas passage time, described air inlet cavity and cavity of supplying gas form path; When cavity import is supplied gas in the downward shutoff of sealing gasket, described air inlet cavity and gas passage form path.
Further, described valve body top has two cannelures successively, be respectively the first cannelure and the second cannelure, described first cannelure inwall has female thread, described second annular groove bottom has the first boss, and the second annular groove bottom communicates with described cavity of supplying gas, described second cannelure side communicates with air inlet cavity, and the outer end of air inlet cavity is provided with the 3rd cannelure.
Further, described valve gap adopts hollow structure, to make its inside, there is gas passage, there is bottom described valve gap the second boss, inwardly there is projection at top, middle part arranges external screw thread, for the valve body that is threaded, is positioned at described externally threaded upper and lower both sides, ring cutting has the first groove and the second groove respectively in described valve gap periphery.
Further, described core assembly also comprises the gland, upper spring, valve rod, the lower spring that are connected successively up and down, and described sealing gasket to be arranged on valve rod and to contact with lower spring.
Further, described 3rd cannelure has outwards been threaded air inlet pipe joint.
Further, described gland top setting table terrace, bottom centre position upwards extends and has the first installing hole, and described valve stem top center has the second installing hole to downward-extension, and middle part has sealing gasket mounting groove;
Described upper spring one end is placed in the first installing hole, the other end is placed in the second installing hole, and described sealing gasket interference fit is arranged in sealing gasket mounting groove, and described lower spring is set in the periphery of stem lower portion, and make the lower surface of lower spring upper-end contact sealing gasket, realize the assembling of core assembly.
Further, to supply gas described in lower spring in described core assembly is placed in cavity, and end in contact is supplied gas cavity bottom under making lower spring, all sealing member is installed in described first groove and the second groove, described gland is placed in valve gap, and spacing by valve gap internal projection, and described valve gap screws in the first cannelure, make step surface hold out against projection, sealing gasket upper surface contacts the second boss, realize the assembling of Volatilizer interface device.
Preferably, described valve stem top has the first end face, its section can be triangle or tetragon or hexagon, the second installing hole is had to downward-extension at top center, there is in the middle part of described valve rod the second end face that sealing gasket is spacing, and the second end face top is tapered, the bottom being close to described second end face has sealing gasket mounting groove on described valve rod.
Preferably, described gland entirety is cylindrical, at its peripheral evenly rip cutting four straight flange, and leave circular arc guide part in the center of straight flange, the external diameter of described gland is less than the internal diameter of valve gap, and to make to form gap between gland and valve gap, and gland can move up and down in valve gap inside.
Preferably, described sealing gasket is rubber gasket or polytetrafluoroethylene sealing gasket, and the external diameter of sealing gasket is all greater than gas passage, the internal diameter of cavity of supplying gas.
Beneficial effect of the present invention is: 1, by having the first groove and the second groove on valve gap, and be separately installed with sealing member, sealing member wherein in the first groove ensure that the air-tightness between valve gap and volatillizer, and the sealing member in the second groove ensure that the air-tightness between valve gap and valve body;
2, between valve gap and valve body, between air inlet pipe joint and valve body, all adopt the thread connecting mode being easy to assemble, facilitate dismounting;
3, core assembly is made up of gland, upper spring, valve rod, lower spring and sealing gasket, and concentrate be arranged between valve body and valve gap, reduce the volume of Volatilizer interface device;
4, sealing gasket interference fit is arranged on valve rod, ensure that sealing gasket can not loosen in motor process, ensure that reliability during its work;
5, gland periphery arranges circular arc guide part, gland can be made to move in valve gap more steadily, reliably, the peripheral rip cutting straight flange of gland, makes to form gas circuit between valve gap and gland;
6, during specific works, when gland is not stressed press down time, anesthetic gases enters air inlet cavity from air inlet pipe joint, and then flow in the second cannelure, sealing gasket upwards withstands the second boss under the elastic force effect of lower spring, the i.e. shutoff import of gas passage, anesthetic gases can only enter cavity of supplying gas, and then flow to anesthetic machine; When gland is stressed press down time, under upper spring force effect, press down valve rod and sealing gasket, make sealing gasket overcome lower spring elastic force, move down and withstand the first boss, the i.e. shutoff import of cavity of supplying gas, anesthetic gases can only flow to valve gap outside from the gap between valve gap and gland, and enters volatillizer, because gland can movement smoothly in valve gap, and stroke long enough, operationally vapour lock is very little to make Volatilizer interface device.
Contrast prior art, this Volatilizer interface device has that structure is simple, air-tightness good, work time vapour lock little, compact advantage.
Accompanying drawing explanation
According to drawings and embodiments the present invention is described in further detail below.
Fig. 1 is the perspective view of Volatilizer interface device of the present invention;
Fig. 2 is for the A-A shown in Fig. 1 is to cross-sectional schematic;
Fig. 3 is the cross-sectional schematic of the valve body shown in Fig. 2;
Fig. 4 is the schematic perspective view of the valve gap shown in Fig. 2;
Fig. 5 is the cross-sectional schematic of the valve gap shown in Fig. 2;
Fig. 6 is the schematic perspective view of the valve rod shown in Fig. 2;
Fig. 7 is the cross-sectional schematic of the valve rod shown in Fig. 2;
Fig. 8 is the schematic perspective view of the gland shown in Fig. 2;
Fig. 9 is the cross-sectional schematic of the gland shown in Fig. 2.
In figure:
1, valve body; 11, air inlet cavity; 12, to supply gas cavity; 13, the first cannelure; 14, the second cannelure; 15, the 3rd cannelure; 16, the first boss;
2, valve gap; 21, gas passage; 22, the first groove; 23, the second groove; 24, protruding; 25, the second boss;
3, core assembly; 31, gland; 32, upper spring; 33, valve rod; 34, lower spring; 35, sealing gasket;
311, the first installing hole; 312, guide part; 313, step surface;
331, the first end face; 332, the second end face; 333, the second installing hole; 334, sealing gasket mounting groove;
4, pipe joint; 5, sealing member; 6, escape pipe joint.
Detailed description of the invention
As shown in Fig. 1 ~ 2, in the present embodiment, Volatilizer interface device of the present invention, comprise valve body 1, valve gap 2, core assembly 3, valve gap 2 is arranged on valve body 1 top, core assembly 3 is arranged between valve body 1 and valve gap 2, core assembly 3 comprises gland 31, upper spring 32, valve rod 33, lower spring 34, sealing gasket 35, valve body 1 inside has air inlet cavity 11, for the cavity 12 of supplying gas to anesthetic machine gas transmission, valve gap 2 inside has gas passage 21, and gas passage 21 is oppositely arranged with cavity 12 of supplying gas, sealing gasket 35 is positioned between the two, when the import of sealing gasket 35 upwards shutoff gas passage 21, air inlet cavity 11 forms path with cavity 12 of supplying gas, realize gas and be delivered to anesthetic machine, when the import of cavity 12 is supplied gas in sealing gasket 35 shutoff downwards, air inlet cavity 11 and gas passage 21 form path, realize gas and outwards export from valve gap 2.
As shown in Figure 1, when Volatilizer interface device of the present invention connects volatillizer, namely two valve gaps 2 all mount volatillizer, it is inner that gas enters valve body 1 from pipe joint 4, volatillizer is entered again from first valve gap 2, then again enter valve body from volatillizer through second valve gap 2, finally export from escape pipe joint 6.Wherein valve gap top peripheral is designed to hexagonal structure, its Main Function facilitates the assembling between itself and valve body, and each volatile device for anesthesia apparatus interface arrangement can mount one or more volatillizer (each volatillizer needs to match with two valve gaps simultaneously) simultaneously.
As shown in Figure 3, give a kind of embodiment of concrete valve body, valve body 1 top has two cannelures successively, be respectively the first cannelure 13 and the second cannelure 14, first cannelure 13 inwall has female thread, there is bottom the second cannelure 14 first boss 16, and communicate with cavity 12 of supplying gas bottom the second cannelure 14, second cannelure 14 side communicates with air inlet cavity 11, and is provided with the 3rd cannelure the 15, three cannelure 15 inwall in the outer end of air inlet cavity 11 and has female thread; The female thread of the first cannelure 13 is used for the valve gap 2 that is threaded, the female thread of the 3rd cannelure 15 is used for the air inlet pipe joint 4 that is threaded, first boss 16 is corresponding with the import of cavity 12 of supplying gas, realize the import of cavity 12 of supplying gas outwards to draw, the closedown of cavity 12 of being more convenient for realizing supplying gas or unlatching.
As shown in Figures 4 and 5, give a kind of embodiment of concrete valve gap, valve gap 2 adopts hollow structure, to make its inside have gas passage 21, has the second boss 25 bottom valve gap 2, top inwardly has protruding 24, middle part arranges external screw thread, for the valve body 1 that is threaded, is positioned at externally threaded upper and lower both sides, ring cutting has the first groove 22 and the second groove 23 respectively in valve gap 2 periphery, and the first groove 22 is positioned at externally threaded root, in the first groove 22, second groove 23, be provided with sealing member 5; The gas passage 21 of valve gap 2 can realize gas to enter volatillizer thus, and the second boss 25 is corresponding with the import of gas passage 21, realizes the import of gas passage 21 outwards to draw, and is more convenient for realizing closedown or the unlatching of gas passage 21; Externally threaded downside arranges the second groove 23, and sealing member 5 is within it set, when valve gap 2 is screwed into after on valve body 1, the sealing member 5 that second groove 23 inside is arranged ensure that the air-tightness between valve gap and valve body, and the sealing member 5 that the first groove 22 inside is arranged ensure that the air-tightness between valve gap and volatillizer.
As shown in figs. 6-7, give a kind of embodiment of concrete valve rod, valve rod 33 top has the first end face 331, its section is tetragon, also can be processed as triangle or hexagon, have the second installing hole 333 at top center to downward-extension, there is in the middle part of valve rod 33 the second end face 332 that sealing gasket is spacing, and the second end face 332 top is tapered, the bottom being close to the second end face 332 has sealing gasket mounting groove 334 on valve rod 33; Second installing hole 333 is for installing spring 32, and sealing gasket mounting groove 334 is for installing sealing gasket 35, and the second end face 332 is for controlling the position of sealing gasket 35.
As shown in Fig. 8 ~ 9, give a kind of embodiment of concrete gland, gland 31 is overall cylindrical, at its peripheral evenly rip cutting four straight flange, and leave circular arc guide part 312 in the center of straight flange, gland 31 top setting table terrace 313, bottom centre position upwards extends and has the first installing hole 311; The external diameter of gland 31 is less than the internal diameter of valve gap 2, to make to form gap between gland 31 and valve gap 2, described straight flange also can make to form gas circuit between valve gap and gland, gas namely from then on gas circuit outwards export, and gland 31 can move up and down in valve gap 2 inside, it is more steady, reliable that guide part 312 can make it move; Step surface 313 can play position-limiting action, prevents gland 31 from skidding off valve gap 2.
Sealing gasket 35 is rubber gasket, also can be polytetrafluoroethylene sealing gasket, or the sealing gasket of other macromolecular materials, and the external diameter of sealing gasket 35 is all greater than gas passage, the internal diameter of cavity of supplying gas, and sealing member 5 is preferably O RunddichtringO.
Above-described valve body, valve gap, valve rod, gland are preferred structure, but its structure is not limited thereto, and also can have other versions.
The assembling process of above-mentioned preferred Volatilizer interface device: the prepackage 1) first carrying out core assembly 3, upper spring 32 one end is placed in the first installing hole 311, the other end is placed in the second installing hole 333, realize the connection of gland 31 and valve rod 33, 2) sealing gasket 35 interference fit is arranged in sealing gasket mounting groove 334, adopt interference fit mounting means, sealing gasket 35 can be ensured again in motor process, all the time can not loosen, 3) lower spring 34 is enclosed within the bottom of valve rod 33, and the upper end of lower spring 34 is contacted with sealing gasket 35 lower surface, so far core assembly 3 is assembled complete, 4) core assembly 3 assembled is placed in valve body 1, the lower end of lower spring 34 is made to hold out against in the bottom of supplying gas cavity 12, 5) in the first groove 22 and the second groove 23, sealing member 5 is all installed, 6) valve gap 2 that alignd by gland 31 is inner, by compressing downwards, lower spring 32, 34, valve gap 2 is tightened on valve body 1, hold out against on protruding 24 to make step surface 313, sealing gasket 35 upper surface holds out against on the second boss 25, 7) air inlet pipe joint 4 is screwed in the outer end of the 3rd cannelure 15.Only give the component mounting method of Volatilizer interface device air inlet side herein, the parts of its side of giving vent to anger take this installation method too.
When access failure volatillizer, gland 31 is not stressed to be pressed down, sealing gasket 35 upwards withstands the second boss 25 under the elastic force effect of lower spring 34, the i.e. shutoff import of gas passage 21, gas enters air inlet cavity 11 from air inlet pipe joint 4, and then flow in the second cannelure 14, gas can only enter cavity 12 of supplying gas, then flows to anesthetic machine downstream by Volatilizer interface device pipeline and joint (not shown).
When two valve gaps all mount volatillizer, the gland 31 of valve gap 2 inside is all simultaneously stressed to be pressed down, under the effect of upper spring 32 elastic force, press down valve rod 33 and sealing gasket 35, sealing gasket 35 is made to overcome lower spring elastic force, move down and withstand the first boss 16, the i.e. shutoff import of cavity 12 of supplying gas, gas can only from the outside flowing to valve gap 2 between valve gap 2 and gland 31, enter volatillizer, and exported by volatillizer and again enter valve body, and then flow to anesthetic machine downstream by Volatilizer interface device pipeline and joint (not shown).
Claims (10)
1. a Volatilizer interface device, the valve gap (2) comprising valve body (1) and connect with it, it is characterized in that: also comprise the core assembly (3) be arranged between valve body (1) and valve gap (2), there is in valve body (1) air inlet cavity (11), also there is the cavity of supplying gas (12) to anesthetic machine gas transmission, described valve gap (2) inside has gas passage (21), described core assembly (3) comprises sealing gasket (35), described cavity of supplying gas (12) and gas passage (21) are oppositely arranged, and described sealing gasket (35) is arranged between the two, when sealing gasket (35) upwards shutoff gas passage (21) import time, described air inlet cavity (11) forms path with cavity (12) of supplying gas, when cavity (12) import is supplied gas in sealing gasket (35) shutoff downwards, described air inlet cavity (11) and gas passage (21) form path.
2. Volatilizer interface device according to claim 1, it is characterized in that: described valve body (1) top has two cannelures successively, be respectively the first cannelure (13) and the second cannelure (14), described first cannelure (13) inwall has female thread, described second cannelure (14) bottom has the first boss (16), and the second cannelure (14) bottom communicates with described cavity of supplying gas (12), described second cannelure (14) side communicates with air inlet cavity (11), and the outer end of air inlet cavity (11) is provided with the 3rd cannelure (15).
3. Volatilizer interface device according to claim 1, it is characterized in that: described valve gap (2) adopts hollow structure, to make its inside, there is gas passage (21), described valve gap (2) bottom has the second boss (25), top inwardly has projection (24), middle part arranges external screw thread, for the valve body that is threaded, be positioned at described externally threaded upper and lower both sides, ring cutting has the first groove (22) and the second groove (23) respectively in described valve gap (2) periphery.
4. Volatilizer interface device according to claim 3, it is characterized in that: described core assembly (3) also comprises the gland (31), upper spring (32), valve rod (33), the lower spring (34) that are connected successively up and down, and described sealing gasket (35) to be arranged on valve rod (33) upper and contact with lower spring (34).
5. Volatilizer interface device according to claim 2, is characterized in that: described 3rd cannelure (15) has outwards been threaded air inlet pipe joint (4).
6. Volatilizer interface device according to claim 4, it is characterized in that: described gland (31) top setting table terrace (313), bottom centre position upwards extends and has the first installing hole (311), described valve rod (33) top center has the second installing hole (333) to downward-extension, and middle part has sealing gasket mounting groove (334);
Described upper spring (32) one end is placed in the first installing hole (311), the other end is placed in the second installing hole (333), described sealing gasket (35) interference fit is arranged in sealing gasket mounting groove (334), described lower spring (34) is set in the periphery of valve rod (33) bottom, and make the lower surface of lower spring (34) upper-end contact sealing gasket (35), realize the assembling of core assembly (3).
7. Volatilizer interface device according to claim 4, it is characterized in that: cavity (12) of supplying gas described in the lower spring (34) in described core assembly (3) is placed in, and under making lower spring (34) end in contact supply gas cavity (12) bottom, in described first groove (22) and the second groove (23), sealing member (5) is all installed, described gland (31) is placed in valve gap (2), and it is spacing by valve gap (2) internal projection (24), described valve gap (2) screws in the first cannelure (13), step surface (313) is made to hold out against projection (24), sealing gasket (35) upper surface contacts the second boss (25).
8. according to the arbitrary described Volatilizer interface device of claim 4 or 6, it is characterized in that: described valve rod (33) top has the first end face (331), its section can be triangle or tetragon or hexagon, the second installing hole (333) is had to downward-extension at top center, described valve rod (33) middle part has spacing the second end face (332) of sealing gasket, and the second end face (332) top is tapered, the bottom being close to described second end face (332) has sealing gasket mounting groove (334) on described valve rod (33).
9. according to the arbitrary described Volatilizer interface device of claim 6 or 7, it is characterized in that: described gland (31) is overall cylindrical, at its peripheral evenly rip cutting four straight flange, and leave circular arc guide part (312) in the center of straight flange, the external diameter of described gland (31) is less than the internal diameter of valve gap (2), to make to form gap between gland (31) and valve gap (2), and gland (31) can move up and down in valve gap (2) inside.
10. according to the arbitrary described Volatilizer interface device of claim 4 or 6 or 7, it is characterized in that: described sealing gasket (35) is rubber gasket or polytetrafluoroethylene sealing gasket, and the external diameter of sealing gasket (35) is all greater than gas passage, the internal diameter of cavity of supplying gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110456976.6A CN103182135B (en) | 2011-12-30 | 2011-12-30 | Volatilizer interface device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110456976.6A CN103182135B (en) | 2011-12-30 | 2011-12-30 | Volatilizer interface device |
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| CN103182135A CN103182135A (en) | 2013-07-03 |
| CN103182135B true CN103182135B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110456976.6A Active CN103182135B (en) | 2011-12-30 | 2011-12-30 | Volatilizer interface device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246489B (en) * | 2017-02-09 | 2024-06-25 | 常州中进医疗器材有限公司 | Electromagnetic valve |
| CN115177831A (en) * | 2021-12-29 | 2022-10-14 | 北京航天长峰股份有限公司 | Mechanical control manual conversion sealing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2146903A (en) * | 1983-09-12 | 1985-05-01 | Boc Group Plc | Anaesthetic vaporiser |
| US5687777A (en) * | 1996-03-11 | 1997-11-18 | Ohmeda Inc. | Anesthetic agent filler valve |
| CN101940809A (en) * | 2009-07-06 | 2011-01-12 | 北京谊安医疗系统股份有限公司 | Anesthesia apparatus and ventilation mode changing device thereof |
| CN202010354U (en) * | 2011-01-31 | 2011-10-19 | 北京谊安医疗系统股份有限公司 | Two-position three-way valve |
| CN202015376U (en) * | 2011-03-21 | 2011-10-26 | 崔伟 | Medical air distribution system |
-
2011
- 2011-12-30 CN CN201110456976.6A patent/CN103182135B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2146903A (en) * | 1983-09-12 | 1985-05-01 | Boc Group Plc | Anaesthetic vaporiser |
| US5687777A (en) * | 1996-03-11 | 1997-11-18 | Ohmeda Inc. | Anesthetic agent filler valve |
| CN101940809A (en) * | 2009-07-06 | 2011-01-12 | 北京谊安医疗系统股份有限公司 | Anesthesia apparatus and ventilation mode changing device thereof |
| CN202010354U (en) * | 2011-01-31 | 2011-10-19 | 北京谊安医疗系统股份有限公司 | Two-position three-way valve |
| CN202015376U (en) * | 2011-03-21 | 2011-10-26 | 崔伟 | Medical air distribution system |
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| CN103182135A (en) | 2013-07-03 |
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