CN211231698U - Gas circuit conversion valve group - Google Patents
Gas circuit conversion valve group Download PDFInfo
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- CN211231698U CN211231698U CN201922412930.9U CN201922412930U CN211231698U CN 211231698 U CN211231698 U CN 211231698U CN 201922412930 U CN201922412930 U CN 201922412930U CN 211231698 U CN211231698 U CN 211231698U
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Abstract
The utility model relates to the technical field of medical instruments, in particular to a gas circuit switching valve group, which consists of a compression screw, a friction reducing disc, a spring pressing sheet, a spring, a control valve sheet, a control valve seat and a sealing gasket; the bottom of the control valve seat is provided with a sealing gasket, the control valve seat is provided with a control valve plate, a spring pressing sheet and an antifriction disc, and a compression screw is sequentially inserted through the antifriction disc, the spring pressing sheet, the spring, the control valve plate, the control valve seat and the sealing gasket and fixed on the valve body; the switching and the on-off of the gas circuit are realized by switching the valve after fresh gas is directly introduced into the anesthesia evaporation device, the switching requirement of each gas circuit of the anesthesia evaporation device in different states is met, the product safety is improved by replacing an opening mode of a complex multi-connecting-rod structure, and the problem of release of accumulated and increased pressure of the anesthesia gas in the product transportation or storage state is solved.
Description
Technical Field
The utility model relates to a medical instrument can be used to the vaporization evaporation plant technical field who inhales the anesthetic, concretely relates to gas circuit switching valves.
Background
The anesthetic vaporizer which is widely used in clinical practice is generally divided into a fresh gas passage, an anesthetic gas passage, and a mixed gas passage. However, at present, a bypass valve passage is opened by basically adopting a multi-link mechanism to realize that fresh gas enters the anesthetic evaporation device while the dial is opened.
Disclosure of Invention
An object of the utility model is to prior art's defect and not enough, provide a gas circuit conversion valves.
The utility model relates to a gas circuit switching valve group, which consists of a compression screw, a friction reducing disc, a spring pressing sheet, a spring, a control valve plate, a control valve seat and a sealing gasket; the bottom of the control valve seat is provided with a sealing gasket, the control valve seat is provided with a control valve plate, a spring pressing sheet and an antifriction disc, and a compression screw is sequentially inserted through the antifriction disc, the spring pressing sheet, the spring, the control valve plate, the control valve seat and the sealing gasket and fixed on the valve body.
Furthermore, the compression screw consists of a front boss, a middle boss, a rear boss and a large flat head which are sequentially connected, the central axes of the front boss, the middle boss, the rear boss and the large flat head are positioned on the same straight line, an external thread is arranged on the front boss, and an inner hexagonal sinking platform is arranged on the outer side surface of the large flat head; and the external thread part on the boss at the front part of the compression screw is screwed in the valve body.
Furthermore, the spring pressing sheet comprises a circular ring table, a central round hole is formed in the center of the circular ring table, a first cylindrical pin is arranged on one side of the top surface of the circular ring table, and a second cylindrical pin and a third cylindrical pin are arranged on the other two sides of the bottom surface of the circular ring table.
Further, the control valve plate comprises a barrel sleeve, a base ring platform protruding outwards is arranged at the bottom end of the barrel sleeve, a first special-shaped sinking groove and a second special-shaped sinking groove are correspondingly formed in two sides of the bottom surface of the base ring platform, a central round hole is formed in the middle of the bottom of the base ring platform, and a first U-shaped groove and a second U-shaped groove are correspondingly formed in two sides of the top surface of the barrel sleeve respectively.
Furthermore, the control valve seat comprises a circular valve seat, and the upper end face of the circular valve seat is provided with a first fan-shaped annular sunken groove, a second fan-shaped annular sunken groove, a third fan-shaped annular sunken groove, a fourth fan-shaped annular sunken groove, a first C-shaped groove, a second C-shaped groove, a central stepped hole and a U-shaped shallow groove according to a certain angle; the bottom surface of the circular valve seat is distributed with a U-shaped sinking groove III, an E-shaped sinking groove I, an E-shaped sinking groove II, a D-shaped sinking groove I and a D-shaped sinking groove II; wherein: two sides of the E-shaped sinking groove I are respectively communicated with the fan-shaped sinking groove I and the fan-shaped sinking groove IV, two sides of the E-shaped sinking groove II are respectively communicated with the fan-shaped sinking groove II and the fan-shaped sinking groove III, the D-shaped sinking groove I is communicated with the C-shaped groove II, and the D-shaped sinking groove II is communicated with the C-shaped groove I.
Further, sealed the pad including circular gasket, the surperficial middle part of this circular gasket is provided with central round hole, and central round hole evenly is provided with circular port one, circular port two, circular port three, circular port four all around, and this circular gasket one side is provided with U type breach.
After the structure is adopted, the utility model discloses beneficial effect does: a gas circuit conversion valves, it adopts and directly introduces conversion, the break-make that realizes the gas circuit through the valve switching behind the anesthesia evaporation plant with fresh gas, solves each gas circuit of anesthesia evaporation plant switching demand under different states, replaces the open mode of complicated many connecting rod structures to promote the product security, anesthesia gas pressure piles up the release problem that rises when solving product transportation or storage state.
[ description of the drawings ]
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, do not constitute a limitation of the invention, and in which:
fig. 1 is a schematic diagram of an explosion three-dimensional structure in one direction of the present invention;
fig. 2 is a schematic diagram of the explosion three-dimensional structure in another direction of the present invention;
fig. 3 is a cross-sectional view of the present invention mounted on a valve body;
FIG. 4 is a schematic structural view of a spring plate of the present invention;
fig. 5 is a schematic structural view of the control valve plate in the top view direction according to the present invention;
fig. 6 is a schematic structural view of the control valve plate in the bottom view direction;
fig. 7 is a schematic structural view of the control valve seat of the present invention in a top view;
fig. 8 is a schematic structural view of the control valve seat of the present invention in a bottom view;
fig. 9 is a schematic structural view of the gasket of the present invention;
fig. 10 is a partial structural schematic view of the valve body of the present invention;
description of reference numerals:
the anti-wear valve comprises a compression screw-1, an anti-wear sheet-2, a spring pressing sheet-3, a spring-4, a control valve sheet-5, a control valve seat-6, a sealing gasket-7 and a valve body-8.
[ detailed description ] embodiments
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and the description are only for the purpose of explanation, but not for the purpose of limitation.
As shown in fig. 1-3, the gas circuit switching valve set according to the present embodiment is composed of a compression screw 1, an anti-wear plate 2, a spring pressing plate 3, a spring 4, a control valve plate 5, a control valve seat 6, and a sealing gasket 7; the bottom of control valve seat 6 is installed sealed 7, installs control valve block 5, spring 4, spring preforming 3, antifriction piece 2 on the control valve seat 6, uses housing screw 1 to alternate antifriction piece 2, spring preforming 3, spring 4, control valve block 5, control valve seat 6, sealed 7 of packing in proper order and fixes on valve body 8.
Furthermore, the compression screw 1 consists of a front boss, a middle boss, a rear boss and a large flat head which are sequentially connected, the central axes of the front boss, the middle boss, the rear boss and the large flat head are positioned on the same straight line, an external thread is arranged on the front boss, and an inner hexagonal sinking platform is arranged on the outer side surface of the large flat head; the external thread part on the front boss of the compression screw 1 is screwed in the valve body 8.
Further, as shown in fig. 4, the spring pressing plate 3 includes a circular ring table, a central circular hole 31 is formed in the center of the circular ring table, a first cylindrical pin 32 is arranged on one side of the top surface of the circular ring table, and a second cylindrical pin 33 and a third cylindrical pin 34 are arranged on the other two sides of the bottom surface of the circular ring table.
Further, as shown in fig. 5-6, the control valve plate 5 includes a sleeve, a base ring platform protruding outward is disposed at the bottom end of the sleeve, a first special-shaped sink groove 51 and a second special-shaped sink groove 52 are correspondingly disposed on two sides of the bottom surface of the base ring platform, a central circular hole 53 is disposed in the middle of the bottom of the base ring platform, and a first U-shaped groove 54 and a second U-shaped groove 55 are correspondingly disposed on two sides of the top surface of the sleeve.
Further, as shown in fig. 7 to 8, the control valve seat 6 includes a circular valve seat, and the upper end surface of the circular valve seat is angularly distributed with a first fan-shaped annular sunken groove 601, a second fan-shaped annular sunken groove 602, a third fan-shaped annular sunken groove 605, a fourth fan-shaped annular sunken groove 606, a first C-shaped groove 603, a second C-shaped groove 604, a central stepped hole 607, and a shallow U-shaped groove 608; the bottom surface of the circular valve seat is distributed with a U-shaped sinking groove three 609, an E-shaped sinking groove one 610, an E-shaped sinking groove two 612, a D-shaped sinking groove one 611 and a D-shaped sinking groove two 613; wherein: two sides of the E-shaped first sinking groove 610 are respectively communicated with the first fan-shaped sinking groove 601 and the fourth fan-shaped sinking groove 606, two sides of the E-shaped second sinking groove 612 are respectively communicated with the second fan-shaped sinking groove 602 and the third fan-shaped sinking groove 605, the D-shaped first sinking groove 611 is communicated with the second C-shaped groove 604, and the second D-shaped sinking groove 613 is communicated with the first C-shaped groove 603.
Further, as shown in fig. 9, the sealing gasket 7 includes a circular gasket, a central circular hole is formed in the middle of the surface of the circular gasket, a first circular hole 72, a second circular hole 73, a third circular hole 74 and a fourth circular hole 75 are uniformly formed around the central circular hole, and a U-shaped notch 71 is formed in one side of the circular gasket.
The working principle of the utility model is as follows:
in the design, as shown in fig. 10, a fresh gas inlet 81, a mixed gas outlet 82, a mixed gas inlet 83 and a fresh gas outlet 84 are arranged on the periphery of the top surface of the valve body 8, a limiting hole 85 is arranged on the outer side of the fresh gas outlet 84, and a central hole 86 is arranged in the middle of the top surface of the valve body 8; wherein: the lower part of the central hole 86 is a threaded hole; the fresh gas inlet 81 is an external fresh gas inlet, the mixed gas outlet 82 is a gas path hole for leading mixed gas to the anesthesia machine, the mixed gas inlet 83 is a gas path outlet of the mixing cavity, and the fresh gas outlet 84 is an inlet for leading fresh gas into the mixing cavity. The compression screw 1 of the design is screwed into a central hole 86 in the valve body 8 by using the external thread on the boss at the front part of the compression screw (the lower part of the central hole 86 is a threaded hole).
In the design, the compression screw 1 penetrates through the friction reducing piece 2, the central hole 31 of the spring pressing piece 3, the spring 4, the central hole 53 of the control valve plate 5, the central hole 607 of the control valve seat 6 and the central hole of the sealing gasket 7 and then enters the central hole 86 of the valve body 8, and the threaded end is fixed. Since the lower portion of the central hole 86 is a threaded hole, the screw connection can be realized. Wherein: a cylindrical pin is arranged at the position of the limiting hole 85 of the valve body 8, the cylindrical pin protrudes out of the surface, the U-shaped notch 71 of the sealing gasket 7 is clamped at the cylindrical pin, and the U-shaped sunk groove three 609 of the control valve seat 6 is clamped at the cylindrical pin; the second cylindrical pin 34 on the spring pressing sheet 3 corresponds to the first U-shaped groove 54 of the control valve plate 5, and the second cylindrical pin 33 corresponds to the second U-shaped groove 55 of the control valve plate 5.
When the design is used, when a dial of the anesthetic evaporation device is opened, the cylindrical pin 32 is driven to rotate around the compression screw 1, and at the moment, the air passage holes of the first fan-shaped annular sinking groove 601 and the third fan-shaped annular sinking groove 605 are closed; the flow direction sequence of the gas is that the external fresh gas enters the mixing chamber after entering the E-shaped sinking groove II 612, the fan-shaped sinking groove II 602, the special-shaped sinking groove I51, the C-shaped groove I603, the D-shaped sinking groove II 613 and the fresh gas outlet 84 in sequence through the fresh gas inlet 81, and the mixed gas flows out of the mixing chamber and enters the anesthesia machine gas path after passing through the mixed gas inlet 83 and then sequentially flowing through the E-shaped sinking groove I610, the fan-shaped sinking groove IV 606, the special-shaped sinking groove II 52, the C-shaped groove II 604, the D-shaped sinking groove I611 and the mixed gas outlet 82 in sequence through the mixed gas inlet 83.
When the dial is closed, the cylindrical pin 31 is driven to rotate around the compression screw 1 to return to the original position, and at the moment, the second fan-shaped annular sinking groove 602 and the fourth fan-shaped annular sinking groove 606 are closed; the mixed gas passes through the mixed gas inlet 83, the E-shaped first sinking groove 610, the fan-shaped annular first sinking groove 601, the special-shaped first sinking groove 51, the C-shaped first groove 603, the D-shaped second sinking groove 613 and the fresh gas outlet 84 in sequence and then is communicated with the inside; the fresh gas enters the gas path of the anesthesia machine through the fresh gas inlet 81 after passing through the E-shaped sinking groove II 612, the fan-shaped sinking groove III 605, the special-shaped sinking groove II 52, the C-shaped groove II 604, the D-shaped sinking groove I611 and the mixed gas outlet 82 in sequence, and at the moment, the fresh gas directly flows out after passing through only part of the gas path of the anesthesia evaporation device.
When the dial rotates clockwise from the zero position to the T position (transportation mode), the combined gas passes through the mixed gas inlet 83, the E-shaped first sunken groove 610, the fan-shaped first annular sunken groove 601, the special-shaped first sunken groove 51 and the U-shaped shallow groove 608 in sequence and then is communicated with the atmosphere, and the anesthetic gas in the evaporation device is released to the atmosphere through the U-shaped shallow groove 608, so that the pressure accumulation effect in the anesthetic evaporation device is reduced.
The utility model has the advantages as follows: the multiple air paths of the anesthesia evaporation device can be combined and switched as required, the structure is simplified, the bypass valve passage is prevented from being opened by adopting a complex multi-link mechanism, the product failure rate is reduced, and the use safety is improved; meanwhile, the pressure of the gas accumulated in the anesthetic vaporizer can be released by switching to a transportation position in a transportation or storage state. The communication, closing and switching functions are realized among the four gas paths by controlling the rotation of the angle of the valve; the pressure release function in the evaporation device is realized by the matching of the U-shaped groove and the angular rotation of the valve; the valve group is compressed through a spring to meet the requirement of air tightness; the control valve plate rotates around the center by positioning the angle cylindrical pin and the center shaft; the control valve is rotated at a large angle by the short-distance movement of the cylindrical pin in the corresponding groove in the dial.
A gas circuit conversion valves, it adopts and directly introduces conversion, the break-make that realizes the gas circuit through the valve switching behind the anesthesia evaporation plant with fresh gas, solves each gas circuit of anesthesia evaporation plant switching demand under different states, replaces the open mode of complicated many connecting rod structures to promote the product security, anesthesia gas pressure piles up the release problem that rises when solving product transportation or storage state.
The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.
Claims (6)
1. The utility model provides a gas circuit switching valves which characterized in that: the device consists of a compression screw, a friction reducing plate, a spring pressing plate, a spring, a control valve plate, a control valve seat and a sealing gasket; the bottom of the control valve seat is provided with a sealing gasket, the control valve seat is provided with a control valve plate, a spring pressing sheet and an antifriction disc, and a compression screw is sequentially inserted through the antifriction disc, the spring pressing sheet, the spring, the control valve plate, the control valve seat and the sealing gasket and fixed on the valve body.
2. The air passage switching valve set as claimed in claim 1, wherein: the compression screw consists of a front boss, a middle boss, a rear boss and a large flat head which are sequentially connected, the central axes of the front boss, the middle boss, the rear boss and the large flat head are positioned on the same straight line, an external thread is arranged on the front boss, and an inner hexagonal sinking platform is arranged on the outer side surface of the large flat head; and the external thread part on the boss at the front part of the compression screw is screwed in the valve body.
3. The air passage switching valve set as claimed in claim 1, wherein: the spring pressing sheet comprises a circular ring table, a central round hole is formed in the center of the circular ring table, a first cylindrical pin is arranged on one side of the top surface of the circular ring table, and a second cylindrical pin and a third cylindrical pin are arranged on the other two sides of the bottom surface of the circular ring table.
4. The air passage switching valve set as claimed in claim 1, wherein: the control valve block comprises a barrel sleeve, a base ring platform protruding outwards is arranged at the bottom end of the barrel sleeve, a first special-shaped sinking groove and a second special-shaped sinking groove are correspondingly arranged on two sides of the bottom surface of the base ring platform, a central round hole is formed in the middle of the bottom of the base ring platform, and a first U-shaped groove and a second U-shaped groove are correspondingly arranged on two sides of the top surface of the barrel sleeve respectively.
5. The air passage switching valve set as claimed in claim 1, wherein: the control valve seat comprises a circular valve seat, and the upper end face of the circular valve seat is provided with a first fan-shaped annular sunken groove, a second fan-shaped annular sunken groove, a third fan-shaped annular sunken groove, a fourth fan-shaped annular sunken groove, a first C-shaped groove, a second C-shaped groove, a central step hole and a shallow U-shaped groove at certain angles; the bottom surface of the circular valve seat is distributed with a U-shaped sinking groove III, an E-shaped sinking groove I, an E-shaped sinking groove II, a D-shaped sinking groove I and a D-shaped sinking groove II; wherein: two sides of the E-shaped sinking groove I are respectively communicated with the fan-shaped sinking groove I and the fan-shaped sinking groove IV, two sides of the E-shaped sinking groove II are respectively communicated with the fan-shaped sinking groove II and the fan-shaped sinking groove III, the D-shaped sinking groove I is communicated with the C-shaped groove II, and the D-shaped sinking groove II is communicated with the C-shaped groove I.
6. The air passage switching valve set as claimed in claim 1, wherein: the sealing gasket comprises a circular gasket, a central round hole is formed in the middle of the surface of the circular gasket, a first round hole, a second round hole, a third round hole and a fourth round hole are uniformly formed in the periphery of the central round hole, and a U-shaped notch is formed in one side of the circular gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922412930.9U CN211231698U (en) | 2019-12-29 | 2019-12-29 | Gas circuit conversion valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922412930.9U CN211231698U (en) | 2019-12-29 | 2019-12-29 | Gas circuit conversion valve group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211231698U true CN211231698U (en) | 2020-08-11 |
Family
ID=71923731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922412930.9U Active CN211231698U (en) | 2019-12-29 | 2019-12-29 | Gas circuit conversion valve group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211231698U (en) |
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2019
- 2019-12-29 CN CN201922412930.9U patent/CN211231698U/en active Active
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