CN115054793B - Oxygen supply device and oxygen supply system for respirator - Google Patents
Oxygen supply device and oxygen supply system for respirator Download PDFInfo
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- CN115054793B CN115054793B CN202210461248.2A CN202210461248A CN115054793B CN 115054793 B CN115054793 B CN 115054793B CN 202210461248 A CN202210461248 A CN 202210461248A CN 115054793 B CN115054793 B CN 115054793B
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- chamber
- connecting end
- automatic air
- accommodating
- oxygen supply
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 239000001301 oxygen Substances 0.000 title claims abstract description 41
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 239000007789 gas Substances 0.000 claims abstract description 20
- 230000007423 decrease Effects 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 claims description 7
- 230000008602 contraction Effects 0.000 abstract description 4
- 230000001502 supplementing effect Effects 0.000 description 33
- 239000012528 membrane Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000004308 accommodation Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
- A61M16/207—Membrane valves with pneumatic amplification stage, i.e. having master and slave membranes
Landscapes
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
本申请涉及一种呼吸器的供氧装置和供氧系统，包括与自动补气件连通的连通管，连通管的另一端穿过密封盖并与第一腔室连通，自动补气件具有第一连接端和第二连接端，第一连接端与第二腔室连通，第二连接端与外界供氧设备连接，当第二腔室内的气体减少时，弹性膜片组件远离密封盖运动，以使自动补气件的第一连接端与第二连接端之间连通，当第二腔室内的气体增加到预设压力时，弹性膜片组件靠近密封盖运动，第一腔室内压力增大，以使自动补气件的第一连接端与第二连接端之间的连通关闭，从而实现了供气的开启和关闭均比较灵敏，可靠性较高，而且储气腔膨胀收缩过程中也不容易失去位置，更不会出现整个装置失效的问题。
The present application relates to an oxygen supply device and an oxygen supply system for a respirator, comprising a connecting pipe connected to an automatic air supply component, the other end of the connecting pipe passes through a sealing cover and is connected to a first chamber, the automatic air supply component has a first connecting end and a second connecting end, the first connecting end is connected to the second chamber, and the second connecting end is connected to an external oxygen supply device, when the gas in the second chamber decreases, the elastic diaphragm assembly moves away from the sealing cover to enable the first connecting end and the second connecting end of the automatic air supply component to be connected, when the gas in the second chamber increases to a preset pressure, the elastic diaphragm assembly moves close to the sealing cover, the pressure in the first chamber increases, so that the connection between the first connecting end and the second connecting end of the automatic air supply component is closed, thereby achieving sensitive opening and closing of the air supply, high reliability, and the air storage chamber is not easy to lose its position during expansion and contraction, and the problem of failure of the entire device will not occur.
Description
Technical Field
The application relates to the field of oxygen supply equipment, in particular to an oxygen supply device of a respirator and an oxygen supply system comprising the oxygen supply device of the respirator.
Background
At present, an automatic air supplementing device for a respirator mainly comprises an air bag, a positive pressure plate, a positive pressure spring, a fixed plate, an automatic supplementing valve and a limit, wherein when oxygen is consumed during use, the pressure in the air bag is reduced, the positive pressure plate moves downwards under the action of the positive pressure spring to gradually shrink the air bag, when the positive pressure plate touches a rocker of the automatic supplementing valve, the rocker of the automatic supplementing valve is inclined at an angle to enable the valve to be opened, and automatic supplementing and air charging are realized, wherein the limit device is used for preventing the whole air supplementing device from being invalid due to the fact that the positive pressure plate loses position. However, the automatic supply valve is arranged in the air bag, and the inclined opening mode of the rocker is insufficient in air supply, so that the rocker is easy to bend and deform to cause insensitive opening valve and poor reliability, and the position of the positive pressure plate is easily lost in the expansion and contraction process of the air bag, so that the whole air supply device is invalid.
Disclosure of Invention
The application provides an oxygen supply device and an oxygen supply system of a respirator, which aim to solve the problems that an automatic supply valve is arranged in an air bag, and the air supply is insufficient in a rocker inclined opening mode, so that the rocker is easy to bend and deform to cause insensitive opening valve and poor reliability, and a positive pressing plate is easy to lose position in the expansion and contraction process of the air bag, so that the whole air supply device is invalid.
In order to solve the technical problems described above or at least partially solve the technical problems described above, a first aspect of the present application provides an oxygen supply device for a respirator, comprising an air storage chamber, an elastic membrane assembly, a sealing cover and an automatic air supplementing assembly;
The sealing cover is covered on the gas storage cavity, and the elastic membrane component is arranged in the gas storage cavity and divides the space between the gas storage cavity and the sealing cover into a first cavity and a second cavity;
The automatic air supplementing assembly comprises an automatic air supplementing piece and a communicating pipe communicated with the automatic air supplementing piece, the other end of the communicating pipe penetrates through the sealing cover and is communicated with the first cavity, the automatic air supplementing piece is provided with a first connecting end and a second connecting end, the first connecting end is communicated with the second cavity, the second connecting end is connected with external oxygen supply equipment, when the gas in the second cavity is reduced, the elastic membrane assembly moves away from the sealing cover, so that the first connecting end of the automatic air supplementing piece is communicated with the second connecting end, when the gas in the second cavity is increased to a preset pressure, the elastic membrane assembly moves close to the sealing cover, and the pressure in the first cavity is increased, so that the communication between the first connecting end and the second connecting end of the automatic air supplementing piece is closed.
Optionally, the automatic air supplementing piece comprises a shell, a first valve cover, a valve core, a piston and a connecting rod;
The shell is provided with a first accommodating cavity, the first valve cover is provided with a second accommodating cavity, and the first connecting end and the second connecting end are communicated with the first accommodating cavity;
The first valve cover is arranged on the shell, the valve core is arranged in the first accommodating cavity, and the outer side wall of the valve core is abutted with the inner side wall of the first accommodating cavity;
the valve core is connected with one end of the connecting rod, the other end of the connecting rod is connected with the piston, the piston is arranged in the second accommodating cavity, the second accommodating cavity is communicated with the communicating pipe, so that the piston reciprocates in the second accommodating cavity, the connecting rod drives the valve core to reciprocate in the first accommodating cavity, and the first connecting end and the second connecting end are communicated or closed with the first accommodating cavity.
Optionally, a channel pipe is arranged on the shell, the channel pipe faces the first accommodating cavity, and the connecting rod extends into the first accommodating cavity along the channel pipe and is connected with the valve core.
Optionally, the automatic air supplementing piece further comprises a first spring and a second spring, a first accommodating groove and a second accommodating groove are formed in the valve core at intervals, the first accommodating groove is communicated with the second accommodating groove, the first accommodating groove is communicated with the first accommodating cavity, a part of the first spring is sleeved on the outer side wall of the channel pipe, the other part of the first spring stretches into the first accommodating groove, the second spring is arranged in the second accommodating groove, and the connecting rod sequentially penetrates through the first spring and the second spring to be connected to the bottom of the second accommodating groove.
Optionally, the automatic air supplementing piece further comprises a plug, the plug is arranged on the second accommodating groove in a sealing mode, the plug is located at the bottom of the valve core, the connecting rod is connected with the plug, and the connecting rod drives the plug to reciprocate, so that the plug drives the valve core to reciprocate in the first accommodating cavity.
Optionally, the automatic air supplementing piece further comprises a first sealing piece, wherein the first sealing piece is arranged on the outer side wall of the valve core, and the first sealing piece is close to the ports of the first connecting end and the second connecting end.
Optionally, the automatic air supplementing piece further comprises a second valve cover, the second valve cover is arranged on the first valve cover, a connecting hole is formed in the second valve cover, and the communicating pipe is communicated with the connecting hole.
Optionally, the elastic membrane assembly includes a peripheral frame, an elastic sheet, and a plurality of supports;
the frame is enclosed and arranged on the periphery of the elastic sheet, the supporting pieces are arranged on the elastic sheet in a staggered mode, and the tail ends of the supporting pieces are connected with the frame.
Optionally, a plurality of third connection ends are arranged on the air storage cavity, the third connection ends are communicated with the second cavity, and the third connection ends are supplied to the target object through air.
In a second aspect the application provides an oxygen supply system comprising an oxygen supply device for a respirator as claimed in any one of the preceding claims.
The automatic air supplementing component comprises an automatic air supplementing component and a communicating pipe communicated with the automatic air supplementing component, the other end of the communicating pipe penetrates through the sealing cover and is communicated with the first cavity, the automatic air supplementing component is provided with a first connecting end and a second connecting end, the first connecting end is communicated with the second cavity, the second connecting end is connected with external oxygen supply equipment, when the air in the second cavity is reduced, the elastic membrane component moves away from the sealing cover so that the first connecting end of the automatic air supplementing component is communicated with the second connecting end, when the air in the second cavity is increased to a preset pressure, the elastic membrane component moves close to the sealing cover, the pressure in the first cavity is increased, so that the communication between the first connecting end and the second connecting end of the automatic air supplementing component is closed, the opening and the closing of air supply are sensitive, the reliability is high, and the whole device is not easy to lose position in the expansion process of the air storage cavity.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic view of an oxygen supply device for a respirator according to an embodiment of the present application;
FIG. 2 is another angular schematic view of an oxygen supply device for a respirator according to an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view taken along the B-B direction as shown in FIG. 1;
Fig. 4 is a schematic view of specific parts of an oxygen supply device of a respirator according to an embodiment of the present application.
The following are the names and labels of the main components of the present application:
A gas storage chamber 10, a first chamber 11, a second chamber 12;
The elastic membrane assembly 20, the surrounding frame 21, the elastic sheet 22, the supporting piece 23 and the third connecting end 24;
a sealing cover 30;
the automatic air supplementing assembly 40, the automatic air supplementing member 41, the communication pipe 42, the housing 440, the first valve cover 401, the valve core 44, the piston 45, the connecting rod 46, the first accommodating chamber 411, the second accommodating chamber 421, the passage pipe 431, the first spring 47, the second spring 48, the first accommodating groove 441, the second accommodating groove 442, the plug 49, the first sealing member 50, the second valve cover 402, the connecting hole 412, the first connecting end 43-1, the second connecting end 43-2, and the vent 4110.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As shown in FIG. 1, the first aspect provides an oxygen supply device of a respirator, comprising an air storage cavity 10, an elastic membrane assembly 20, a sealing cover 30 and an automatic air supply assembly 40, wherein the sealing cover 30 is arranged on the air storage cavity 10, the elastic membrane assembly 20 is arranged in the air storage cavity 10 and divides the space between the air storage cavity 10 and the sealing cover 30 into a first cavity 11 and a second cavity 12, the automatic air supply assembly 40 comprises an automatic air supply piece 41 and a communicating pipe 42 communicated with the automatic air supply piece 41, the other end of the communicating pipe 42 passes through the sealing cover 30 and is communicated with the first cavity 11, the automatic air supply piece 41 is provided with a first connecting end 43-1 and a second connecting end 44, the first connecting end 43-1 is communicated with the second cavity 12, the second connecting end 43-2 is connected with an external oxygen supply device, when the air in the second cavity 12 is reduced, the elastic membrane assembly 20 moves away from the sealing cover 30, so that the pressure between the first connecting end 43-1 of the automatic air supply piece 41 and the second cavity 11 is increased when the pressure in the first connecting end 43-1 is connected with the second cavity 11, and the pressure in the first connecting end 43-2 is increased. Therefore, the opening and closing of the air supply are sensitive, the reliability is high, the position of the air storage cavity 10 is not easy to lose in the expansion and contraction process, and the problem of failure of the whole device is avoided. Alternatively, the gas storage chamber 10 may be a case structure made of a hard material.
Alternatively, when the pressure in the second chamber 12 decreases due to oxygen consumption in the second chamber 12, the elastic membrane assembly 20 expands downward, i.e., the elastic membrane assembly 20 moves away from the sealing cover 30, such that the volume of the first chamber 11 increases, the pressure in the first chamber 11 decreases, the automatic air supplementing assembly 40 is triggered to open such that the first connecting end 43-1 and the second connecting end 43-2 are communicated and oxygen is supplemented into the second chamber 12, and when oxygen is continuously supplemented into the second chamber 12, such that the pressure in the second chamber 12 increases, the elastic membrane assembly 20 compresses upward, i.e., the elastic membrane assembly 20 moves close to the sealing cover 30, the volume of the first chamber 11 decreases, the automatic air supplementing assembly 40 is triggered to close such that the first connecting end 43-1 and the second connecting end 43-2 cannot be communicated and oxygen is stopped from being supplemented into the second chamber 12. The cyclic reciprocation realizes automatic air supplement, and maintains the oxygen pressure of the second chamber 12 to be always in a positive pressure state.
Optionally, the automatic air supplementing member 41 includes a housing 440, a first valve cover 401, a valve core 44, a piston 45 and a connecting rod 46, wherein the housing 440 has a first accommodating cavity 411, the first valve cover 401 has a second accommodating cavity 421, the first connecting end 43-1 and the second connecting end 43-2 are both communicated with the first accommodating cavity 411, the first valve cover 401 is disposed on the housing 440, the valve core 44 is disposed in the first accommodating cavity 411, an outer side wall of the valve core 44 abuts against an inner side wall of the first accommodating cavity 411, the valve core 44 is connected with one end of the connecting rod 46, the other end of the connecting rod 46 is connected with the piston 45, the piston 45 is disposed in the second accommodating cavity 421, and the second accommodating cavity is communicated with the communicating pipe 42, so that the piston 45 reciprocates in the second accommodating cavity 421, and the connecting rod 46 drives the valve core 44 to reciprocate in the first accommodating cavity 411, and the first connecting end 43-1 and the second accommodating cavity 411 are closed or the first connecting end 43-2 are communicated with each other.
It should be noted that, when the elastic membrane assembly 20 expands downward, the pressure in the first chamber 11 decreases to generate a suction force, the suction force can make the piston 45 move upward in the second accommodating chamber 421, the piston 45 drives the connecting rod 46 to move upward, and the connecting rod 46 drives the valve core 44 to move upward in the first accommodating chamber 411, so that the valve core 44 generates a gap in the first accommodating chamber 411, and the gap can enable the first connection end 43-1 and the second connection end 43-2 to communicate, so that gas is led into the second chamber 12, when the elastic membrane assembly 20 compresses upward, the pressure in the first chamber 11 increases to generate a thrust force, the thrust force can make the piston 45 move downward in the second accommodating chamber 421, the piston 45 drives the connecting rod 46 to move downward, and the connecting rod 46 drives the valve core 44 to move downward in the first accommodating chamber 411, so that the valve core 44 resets in the first accommodating chamber 411, and the gap generated by the previous ascent of the valve core 44 is filled, so that the first connection end 43-1 and the second connection end 43-2 are not communicated, and the gas is blocked from the second chamber 12.
Optionally, a channel pipe 431 is disposed on the housing 440, the channel pipe 431 faces the first accommodating cavity 411, and the connecting rod 46 extends into the first accommodating cavity 411 along the channel pipe 431 and is connected to the valve core 44. Specifically, the channel pipe 431 can make the connecting rod 46 stably extend into the first accommodating cavity 411, and the housing 440 is further provided with a vent hole 4110, the vent hole 4110 is spaced from the channel pipe 431, and the vent hole 4110 is communicated with the first accommodating cavity 411, so that the first accommodating cavity 411 and the second accommodating cavity 421 are ventilated, which is the same as the outside atmosphere, to reduce the resistance of the valve core 44 during movement, improve the sensitivity of the valve core 44, that is, realize the reciprocating movement of the piston 45 in the second accommodating cavity 421, and make the connecting rod 46 drive the valve core 44 to reciprocate in the first accommodating cavity 411.
In one embodiment, the automatic air supplementing member 41 further includes a first spring 47 and a second spring 48, a first accommodating groove 441 and a second accommodating groove 442 are disposed on the valve core 44 at intervals, the first accommodating groove 441 is communicated with the second accommodating groove 442, the first accommodating groove 441 is communicated with the first accommodating cavity 411, a part of the first spring 47 is sleeved on an outer side wall of the channel pipe 431, another part of the first spring 47 extends into the first accommodating groove 441, the second spring 48 is disposed in the second accommodating groove 442, and the connecting rod 46 sequentially penetrates through the first spring 47 and the second spring 48 to be connected to the bottom of the second accommodating groove 442. Optionally, the automatic air supplementing member 41 further includes a plug 49, the plug 49 is sealingly disposed on the second accommodating groove 442, the plug 49 is located at the bottom of the valve core 44, the connecting rod 46 is connected with the plug 49, and the connecting rod 46 reciprocates to drive the plug 49, so that the plug 49 drives the valve core 44 to reciprocate in the first accommodating cavity 411.
Optionally, the plug 49 has a certain elastic force, when the connecting rod 46 receives an upward tensile force, the connecting rod 46 drives the valve core 44 to perform an upward movement in the first accommodating cavity 411, the plug 49 overcomes the resistance of the second spring 48, until the plug 49 contacts with the boss in the second accommodating groove 442, the valve core 44 is driven to continuously move upward against the resistance of the first return spring 47, at this time, the valve core 44 generates a space in the first accommodating cavity 411, and the space enables the first connecting end 43-1 and the second connecting end 43-2 to be communicated, i.e. the automatic air supplementing assembly 40 is opened and supplements air into the second cavity 12. Therefore, the second spring 48 can play a role of buffering, preventing small pressure fluctuation from frequently opening communication between the first connection terminal 43-1 and the second connection terminal 43-2, and causing instability of the device. Along with the air supply, the elastic membrane assembly 20 is compressed upwards, so that the vacuum degree in the first chamber 11 is reduced, the tension of the connecting rod 46 is reduced, the valve core 44 is abutted against the bottom of the first accommodating cavity 411 under the action of the first spring 47, the plug 49 is abutted against the bottom of the first accommodating cavity 411 under the action of the second spring 48, and at this time, the first connecting end 43-1 and the second connecting end 43-2 are completely disconnected, that is, the automatic air supply assembly 40 is closed and stops introducing air into the second chamber 12.
In one embodiment, the automatic air supply 41 further includes a first seal 50, the first seal 50 is disposed on the outer sidewall of the valve core 44, and the first seal 50 is adjacent to the ports of the first connection end 43-1 and the second connection end 43-2. Specifically, the first seal 50 ensures that the first and second connection ends 43-1 and 43-2 are not air-tight.
In one embodiment, the automatic air supplementing member 41 further includes a second valve cover 402, the second valve cover 402 is disposed on the first valve cover 401, a connection hole 412 is disposed on the second valve cover 402, and the communicating pipe 42 is in communication with the connection hole 412. Specifically, when the volume in the first chamber 11 increases, a negative pressure is generated, so that a tensile force is transmitted from the first chamber 11 to the connection hole 412, and a tensile force of the connection hole 412 is transmitted to the second accommodation chamber 421, so that the piston 45 moves upward in the second accommodation chamber 421, and when the volume in the first chamber 11 decreases, a pushing force is generated, so that a pushing force is transmitted from the first chamber 11 to the connection hole 412, and a pushing force of the connection hole 412 is transmitted to the second accommodation chamber 421, so that the piston 45 moves downward in the second accommodation chamber 421.
In one embodiment, the elastic membrane assembly 20 includes a surrounding frame 21, an elastic sheet 22, and a plurality of supporting members 23, wherein the surrounding frame 21 surrounds the periphery of the elastic sheet 22, the plurality of supporting members 23 are alternately disposed on the elastic sheet 22, and the ends of the plurality of supporting members 23 are connected with the surrounding frame 21. Alternatively, the elastic sheet 22 may have a curved shape or a planar shape, and in particular, may have a curved surface, and the elastic sheet 22 has a restoring force and is always in a compressed state so as to maintain the positive pressure of the gas in the lower second chamber 12.
Optionally, a plurality of third connection ends 24 are provided on the gas storage cavity 10, the plurality of third connection ends 24 are in communication with the second chamber 12, and the plurality of third connection ends 24 are supplied to the target object through gas.
In a second aspect the application provides an oxygen supply system comprising an oxygen supply device for a respirator as claimed in any one of the preceding claims. Optionally, the automatic replenishment assembly 20 of the oxygen supply system of the present application has a simple structure and high operational reliability, and the automatic replenishment assembly 20 is disposed outside the second chamber 12, so as to facilitate maintenance of the automatic replenishment assembly 20, and ensure stable and reliable replenishment of the second chamber 12. The automatic replenishment assembly 20 is controlled by the vacuum degree in the first chamber 11, so that the opening sensitivity is high, and the stable and reliable replenishment of the second chamber 12 is ensured. The automatic replenishment assembly 20 is opened by axial movement of the valve spool 44 to achieve a high flow replenishment gas supply to rapidly fill the second chamber 12 with gas. The whole oxygen supply system has compact structure and saves space.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210461248.2A CN115054793B (en) | 2022-04-28 | 2022-04-28 | Oxygen supply device and oxygen supply system for respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210461248.2A CN115054793B (en) | 2022-04-28 | 2022-04-28 | Oxygen supply device and oxygen supply system for respirator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115054793A CN115054793A (en) | 2022-09-16 |
| CN115054793B true CN115054793B (en) | 2025-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210461248.2A Active CN115054793B (en) | 2022-04-28 | 2022-04-28 | Oxygen supply device and oxygen supply system for respirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115054793B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5070872A (en) * | 1989-10-17 | 1991-12-10 | Dragerwerk Aktiengesellschaft | Metering device for a lung-demand valve |
| CN206120891U (en) * | 2016-07-20 | 2017-04-26 | 蔡小奇 | Sputum excretion machine and breathing machine system thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1430383A (en) * | 1972-03-23 | 1976-03-31 | Normalair Garrett Ltd | Gas delivery regulators |
| US10315002B2 (en) * | 2015-03-24 | 2019-06-11 | Ventec Life Systems, Inc. | Ventilator with integrated oxygen production |
| CN205626768U (en) * | 2016-04-22 | 2016-10-12 | 重庆华渝电气集团有限公司 | Isolated formula positive -pressure oxygen respirator's automatic supply device |
| CN211925381U (en) * | 2020-03-18 | 2020-11-13 | 无锡金都机械装备有限公司 | Integrated integrated oxygen supply valve |
-
2022
- 2022-04-28 CN CN202210461248.2A patent/CN115054793B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5070872A (en) * | 1989-10-17 | 1991-12-10 | Dragerwerk Aktiengesellschaft | Metering device for a lung-demand valve |
| CN206120891U (en) * | 2016-07-20 | 2017-04-26 | 蔡小奇 | Sputum excretion machine and breathing machine system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115054793A (en) | 2022-09-16 |
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