CN219071652U - High-low pressure oxygen output structure and breathing machine - Google Patents
High-low pressure oxygen output structure and breathing machine Download PDFInfo
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- CN219071652U CN219071652U CN202223529994.5U CN202223529994U CN219071652U CN 219071652 U CN219071652 U CN 219071652U CN 202223529994 U CN202223529994 U CN 202223529994U CN 219071652 U CN219071652 U CN 219071652U
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000001301 oxygen Substances 0.000 title claims abstract description 75
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 75
- 230000029058 respiratory gaseous exchange Effects 0.000 title description 13
- 230000000903 blocking effect Effects 0.000 claims abstract description 88
- 238000007789 sealing Methods 0.000 claims description 28
- 239000007789 gas Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000003814 drug Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 208000004756 Respiratory Insufficiency Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of medical appliances, and particularly relates to a high-low pressure oxygen output structure and a respirator. The high-low pressure oxygen output structure comprises an elastic piece, a sliding rod and a mounting block provided with an air passage hole group, wherein the air passage hole group comprises a first inner hole, a first air passage, a second inner hole, a second air passage and a third inner hole which are sequentially communicated; the mounting block is also provided with a low-pressure air inlet hole communicated with the first inner hole, a high-pressure air inlet hole communicated with the third inner hole and an air outlet hole communicated with the second inner hole and/or the second air passage; the sliding rod is provided with a first blocking part and a second blocking part which are distributed at intervals; the sliding rod is slidably arranged in the air passage hole group, and the opposite ends of the elastic piece are respectively abutted with the sliding rod and the inner wall of the first inner hole. In the utility model, the high-low pressure oxygen output structure does not need to be provided with an electric device, so that the safety of the high-low pressure oxygen output structure is ensured; the high-low pressure oxygen output structure is simple in structure and low in manufacturing cost.
Description
Technical Field
The utility model belongs to the technical field of medical appliances, and particularly relates to a high-low pressure oxygen output structure and a respirator.
Background
In modern clinical medicine, a ventilator is used as an effective means capable of artificially replacing, controlling or changing the autonomous ventilation function, and is widely used in respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, respiratory support treatment and emergency resuscitation, and has a very important position in the field of modern medicine.
In order to improve the applicability and the commonality of the breathing machine, the breathing machine can be provided with a low-pressure oxygen cylinder and a high-pressure oxygen cylinder, the low-pressure oxygen cylinder can provide low-pressure oxygen for the breathing machine, and the high-pressure oxygen cylinder can provide high-pressure oxygen for the breathing machine. The low-pressure oxygen bottle and the high-pressure oxygen bottle are respectively communicated with the gas circuit module of the breathing machine through the high-pressure connector and the low-pressure connector, and the high-pressure connector and the low-pressure connector can only work one at a time, so that the existing high-pressure connector and low-pressure connector are usually connected with the gas circuit module through a three-way valve, the three-way valve is usually an electromagnetic valve, and the three-way valve works in an aerobic environment and has great potential safety hazards. In addition, the existing three-way valve has the defects of complex structure, large volume and the like.
Disclosure of Invention
The utility model provides a high-low pressure oxygen output structure and a breathing machine, aiming at the technical problem that the high-low pressure interface and the low pressure interface in the prior art are communicated with a gas circuit module of the breathing machine through a three-way valve, and the high-low pressure oxygen output structure and the breathing machine have great potential safety hazards.
In view of the above technical problems, the embodiments of the present utility model provide a high-low pressure oxygen output structure, which includes an elastic member, a sliding rod, and a mounting block provided with an air passage hole group, where the air passage hole group includes a first inner hole, a first air passage, a second inner hole, a second air passage, and a third inner hole that are sequentially communicated; the mounting block is also provided with a low-pressure air inlet hole communicated with the first inner hole, a high-pressure air inlet hole communicated with the third inner hole and an air outlet hole communicated with the second inner hole and/or the second air passage;
the sliding rod is provided with a first blocking part and a second blocking part which are distributed at intervals; the sliding rod is slidably arranged in the air passage hole group, and the opposite ends of the elastic piece are respectively abutted against the sliding rod and the inner wall of the first inner hole;
the first blocking portion slides between the first inner bore and the first air passage, and the second blocking portion slides between the second air passage and the third inner bore.
Optionally, the inner diameter of the first air passage is larger than the inner diameter of the first inner hole, the inner diameter of the first air passage is larger than the inner diameter of the second inner hole, and the outer diameter of the first plugging part is smaller than the inner diameter of the first air passage;
the inner diameter of the second air passage is larger than that of the second inner hole, the inner diameter of the second air passage is larger than that of the third inner hole, and the outer diameter of the second plugging part is smaller than that of the second air passage.
Optionally, the inner diameter of the first inner hole, the inner diameter of the second inner hole and the inner diameter of the third inner hole are all equal; the inner diameter of the first air passage is equal to the inner diameter of the second air passage.
Optionally, a third blocking part is arranged on the sliding rod, and the first blocking part is positioned between the third blocking part and the second blocking part; the third plugging part is slidably mounted in the first inner hole and is used for plugging the first inner hole.
Optionally, a third protruding part, a first protruding part and a second protruding part which are sequentially and alternately distributed are arranged on the sliding rod, a first annular groove is arranged on the first protruding part, a second annular groove is arranged on the second protruding part, and a third annular groove is arranged on the third protruding part;
the first blocking part is a first sealing ring arranged in the first annular groove, the second blocking part is a second sealing ring arranged in the second annular groove, and the third blocking part is a third sealing ring arranged in the third annular groove.
Optionally, the mounting block is further provided with a mounting port communicated with the third inner hole, the high-low pressure oxygen output structure further comprises a safety valve mounted on the mounting block, and an inlet of the safety valve is communicated with the mounting port; the safety valve is used for releasing pressure of the third inner hole when the gas pressure of the third inner hole is larger than the preset pressure.
Optionally, the mounting block comprises a sealing cover and a block body, and the air passage hole group, the high-pressure air inlet hole, the low-pressure air inlet hole and the air outlet hole are all arranged on the block body; the sealing cover is mounted on the block body and is used for sealing the first inner hole; opposite ends of the elastic piece are respectively abutted against the sealing cover and the sliding rod.
Optionally, the sliding rod is further provided with a plug hole, and one end of the elastic piece, which is far away from the sealing cover, is plugged into the plug hole.
Optionally, the high-low pressure oxygen output structure further comprises a high-pressure air inlet joint, a low-pressure air inlet joint and an air outlet joint; the high-pressure air inlet connector is arranged in the high-pressure air inlet hole, the low-pressure air inlet connector is arranged in the low-pressure air inlet hole, and the air outlet connector is arranged in the air outlet hole.
The utility model also provides a breathing machine comprising the high-low pressure oxygen output structure.
In the utility model, when low-pressure oxygen is input into the low-pressure air inlet hole, the thrust of the low-pressure oxygen to the sliding rod is not so much as to compress the elastic piece, at the moment, the first blocking part is positioned in the first air passage, and the low-pressure air inlet hole is communicated with the air outlet hole through the first inner hole, the first air passage and the second inner hole in sequence; the second blocking part is positioned in the second air passage, and blocks a third inner hole between the second air passage and the high-pressure air inlet hole, and at the moment, the high-pressure air inlet hole is not communicated with the air outlet hole.
Specifically, when high-pressure oxygen is input into the high-pressure air inlet hole, the thrust of the high-pressure oxygen in the third inner hole to the second blocking part drives the sliding rod to slide in the air passage hole group and compress the elastic piece until the first blocking part slides into the first inner hole between the low-pressure air inlet hole and the first air passage, and the second blocking part slides into the second air passage; at this time, the high-pressure air inlet hole is communicated with the air outlet hole through the second air passage and the second inner hole, and the low-pressure air inlet hole is not communicated with the air outlet hole.
When the high-pressure air inlet hole stops inputting high-pressure oxygen, the elastic force of the elastic piece drives the sliding rod to slide in the air passage hole group until the first blocking part is positioned in the first air passage, and the second blocking part is positioned in a third inner hole between the second air passage and the high-pressure air inlet hole.
According to the utility model, according to the difference of the air pressure of the oxygen input by the low-pressure air inlet hole and the high-pressure air inlet hole, the sliding rod drives the first blocking part and the second blocking part on the sliding rod to slide in the air passage hole group, so that the high-pressure oxygen output structure can automatically realize the functions of outputting high-pressure oxygen and outputting low-pressure oxygen, an electric device is not required, and the safety of the high-pressure oxygen output structure and the low-pressure oxygen output structure are ensured. The high-low pressure oxygen output structure is simple in structure and low in manufacturing cost.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a high-low pressure oxygen output structure according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a low pressure delivery of a high and low pressure oxygen delivery structure according to one embodiment of the present utility model;
FIG. 3 is a cross-sectional view of a high-pressure gas delivery structure according to an embodiment of the present utility model;
FIG. 4 is a cross-sectional view of a mounting block for a high and low pressure oxygen delivery structure according to one embodiment of the present utility model;
FIG. 5 is a schematic view of a sliding rod of a high-low pressure oxygen output structure according to an embodiment of the present utility model.
Reference numerals in the specification are as follows:
1. an elastic member; 2. a slide bar; 21. a first blocking portion; 22. a second blocking portion; 23. a third blocking portion; 24. a first projection; 25. a second projection; 26. a third projection; 27. a plug hole; 3. a mounting block; 31. an airway aperture set; 311. a first bore; 312. a first airway; 313. a second bore; 314. a second airway; 315. a third bore; 32. a low pressure air inlet hole; 33. high-pressure air inlet holes; 34. an air outlet hole; 35. a cover; 36. a block; 37. a mounting port; 4. a safety valve; 5. a high pressure air inlet joint; 6. a low pressure air inlet joint; 7. and an air outlet joint.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It is to be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "middle", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.
As shown in fig. 1 to 5, the high-low pressure oxygen output structure provided by an embodiment of the present utility model includes an elastic member 1, a sliding rod 2, and a mounting block 3 provided with an air passage hole group 31, where the air passage hole group 31 includes a first inner hole 311, a first air passage 312, a second inner hole 313, a second air passage 314, and a third inner hole 315 that are sequentially communicated; the mounting block 3 is further provided with a low-pressure air inlet hole 32 communicated with the first inner hole 311, a high-pressure air inlet hole 33 communicated with the third inner hole 315, and an air outlet hole 34 communicated with the second inner hole 313 and/or the second air passage 314; it will be appreciated that the elastic member 1 includes, but is not limited to, a spring, a leaf spring, etc., and the air outlet hole 34 is located between the high pressure air inlet hole 33 and the low pressure air inlet hole 32.
The sliding rod 2 is provided with a first blocking part 21 and a second blocking part 22 which are distributed at intervals; the sliding rod 2 is slidably mounted in the air passage hole group 31, and two opposite ends of the elastic piece 1 are respectively abutted against the sliding rod 2 and the inner wall of the first inner hole 311; it will be appreciated that the first blocking portion 21 and the second blocking portion 22 each protrude above the slide bar 2.
The first blocking portion 21 slides between the first inner hole 311 and the first air passage 312, and the second blocking portion 22 slides between the second air passage 314 and the third inner hole 315. As can be appreciated, when the first blocking portion 21 slides into the first inner bore 311, the first blocking portion 21 may block the first inner bore 311 between the low pressure gas inlet hole 32 and the gas outlet hole 34; when the first blocking part 21 slides into the first air passage 312, a gap is formed between the outer wall of the first blocking part 21 and the inner wall of the first air passage 312, and the first inner hole 311 is communicated with the air outlet hole 34 through the first air passage 312; when the second blocking portion 22 slides into the third inner hole 315, the second blocking portion 22 blocks the third inner hole 315 between the second air passage 314 and the high-pressure air inlet hole 33; when the second blocking portion 22 slides into the second air passage 314, a gap is formed between the outer wall of the second blocking portion 22 and the inner wall of the second air passage 314, and the high-pressure air inlet hole 33 is communicated with the air outlet hole 34 through the third inner hole 315 and the second air passage 314.
Specifically, when the low-pressure oxygen is input into the low-pressure air inlet 32, the thrust of the low-pressure oxygen to the sliding rod 2 does not compress the elastic member 1, at this time, the first blocking portion 21 is located in the first air passage 312, and the low-pressure air inlet 32 is sequentially communicated with the air outlet 34 through the first inner hole 311, the first air passage 312 and the second inner hole 313; the second blocking portion 22 is located in the second air passage 314, and the second blocking portion 22 blocks a third inner hole 315 between the second air passage 314 and the high-pressure air inlet hole 33, and at this time, the high-pressure air inlet hole 33 is not communicated with the air outlet hole 34.
Specifically, when the high-pressure oxygen is input into the high-pressure air inlet hole 33, the pushing force of the high-pressure oxygen in the third inner hole 315 to the second blocking portion 22 drives the sliding rod 2 to slide in the air passage hole group 31 and compress the elastic member 1 until the first blocking portion 21 slides into the first inner hole 311 between the low-pressure air inlet hole 32 and the first air passage 312, and the second blocking portion 22 slides into the second air passage 314; at this time, the high pressure air inlet hole 33 communicates with the air outlet hole 34 through the second air passage 314 and the second inner hole 313, and the low pressure air inlet hole 32 does not communicate with the air outlet hole 34.
When the high pressure air inlet hole 33 stops inputting high pressure oxygen, the elastic force of the elastic member 1 drives the sliding rod 2 to slide in the air passage hole group 31 until the first blocking portion 21 is located in the first air passage 312, and the second blocking portion 22 is located in the third inner hole 315 between the second air passage 314 and the high pressure air inlet hole 33.
According to the utility model, according to the difference of the air pressure of the oxygen input by the low-pressure air inlet hole 32 and the high-pressure air inlet hole 33, the sliding rod 2 drives the first blocking part 21 and the second blocking part 22 on the sliding rod to slide in the air passage hole group 31, so that the high-pressure oxygen output structure can automatically realize the functions of outputting high-pressure oxygen and outputting low-pressure oxygen, an electric device is not required, and the safety of the high-pressure oxygen output structure is ensured. The high-low pressure oxygen output structure is simple in structure and low in manufacturing cost.
In an embodiment, as shown in fig. 1 to 5, the inner diameter of the first air passage 312 is larger than the inner diameter of the first inner hole 311, and the inner diameter of the first air passage 312 is larger than the inner diameter of the second inner hole 313, and the outer diameter of the first blocking portion 21 is smaller than the inner diameter of the first air passage 312; it will be appreciated that the outer diameter of the first blocking portion 21 is equal to or greater than the inner diameter of the first inner hole 311, and when the first blocking portion 21 slides into the first inner hole 311, the first blocking portion 21 will block the first inner hole 311, and the first blocking portion 21 may slide in the first inner hole 311 under the driving of the air pressure of the high-pressure oxygen. When the first blocking portion 21 is located in the first air passage 312, a gap is formed between the outer wall of the first blocking portion 21 and the inner wall of the first air passage 312, so that the middle gas of the first inner hole 311 can enter the gas outlet hole 34 through the first air passage 312 and the second inner hole 313.
The inner diameter of the second air passage 314 is larger than the inner diameter of the second inner hole 313, the inner diameter of the second air passage 314 is larger than the inner diameter of the third inner hole 315, and the outer diameter of the second blocking portion 22 is smaller than the inner diameter of the second air passage 314. It will be appreciated that the outer diameter of the second blocking portion 22 is equal to or greater than the inner diameter of the third inner hole 315, and when the second blocking portion 22 slides into the third inner hole 315, the second blocking portion 22 blocks the third inner hole 315, and the third blocking portion 23 can slide in the third inner hole 315 under the driving of the air pressure of the high-pressure oxygen. When the second blocking portion 22 is located in the second air passage 314, a gap is formed between the outer wall of the second blocking portion 22 and the inner wall of the second air passage 314, so that the medium gas in the third inner hole 315 can enter the gas outlet hole 34 through the second air passage 314 and the second inner hole 313.
In one embodiment, as shown in fig. 1, the inner diameter of the first inner hole 311, the inner diameter of the second inner hole 313, and the inner diameter of the third inner hole 315 are all equal; the inner diameter of the first air passage 312 is equal to the inner diameter of the second air passage 314. It will be appreciated that the outer diameter of the first occlusion 21 is equal to the outer diameter of the second occlusion 22; in this embodiment, the first air passage 312 and the second air passage 314 are subjected to reaming treatment in one inner hole, so that the difficulty in manufacturing the air passage hole set 31 is reduced, and the manufacturing cost of the high-low pressure oxygen output structure is further reduced.
In an embodiment, as shown in fig. 2 to 5, a third blocking portion 23 is further disposed on the sliding rod 2, and the first blocking portion 21 is located between the third blocking portion 23 and the second blocking portion 22; the third blocking portion 23 is slidably mounted in the first inner hole 311, and the third blocking portion 23 is used for blocking the first inner hole 311. As can be appreciated, the sliding rod 2 is provided with the third blocking portion 23, the first blocking portion 21 and the second blocking portion 22 which are sequentially spaced; the third plugging portion 23 may plug the third inner hole 315, that is, the third plugging portion 23 divides the first inner hole 311 into a first space and a second space, the elastic element 1 is located in the first space, the second space is provided with oxygen, and the design of the third plugging portion 23 prevents the oxygen in the second space from interfering with the elastic element 1, thereby prolonging the service life of the high-low pressure oxygen output structure.
In an embodiment, as shown in fig. 5, the sliding rod 2 is provided with a third protruding portion 26, a first protruding portion 24 and a second protruding portion 25 which are sequentially distributed at intervals, the first protruding portion 24 is provided with a first annular groove, the second protruding portion 25 is provided with a second annular groove, and the third protruding portion 26 is provided with a third annular groove.
The first blocking part 21 is a first sealing ring installed in the first annular groove, the second blocking part 22 is a second sealing ring installed in the second annular groove, and the third blocking part 23 is a third sealing ring installed in the third annular groove. It can be appreciated that the first sealing ring, the second sealing ring and the third sealing ring may be made of silica gel, and have a certain elasticity, so that the first sealing ring and the third sealing ring may also slide in the first inner hole 311 on the premise that the first sealing ring and the third sealing ring seal the first inner hole 311; in addition, on the premise that the second sealing ring seals the third inner hole 315, the third sealing ring can also slide in the third inner hole 315.
In an embodiment, as shown in fig. 3 and fig. 4, the mounting block 3 is further provided with a mounting port 37 communicating with the third inner hole 315, the high-low pressure oxygen output structure further includes a safety valve 4 mounted on the mounting block 3, and an inlet of the safety valve 4 is communicated with the mounting port 37; the relief valve 4 is configured to release the pressure of the third inner hole 315 when the gas pressure of the third inner hole 315 is greater than a preset pressure. It will be appreciated that the structure of the safety valve 4 is a structure well known to those skilled in the art, and the structure of the safety valve 4 will not be described herein. Specifically, when the air pressure of the high-pressure oxygen input from the high-pressure air inlet hole 33 to the third inner hole 315 is greater than the preset air pressure, the safety valve 4 is opened, so that the safety valve 4 can perform pressure relief treatment on the third inner hole 315, thereby ensuring the safety of the high-pressure oxygen output structure and the low-pressure oxygen output structure.
In an embodiment, as shown in fig. 1 to 4, the mounting block 3 includes a cover 35 and a block 36, and the air passage hole group 31, the high pressure air inlet hole 33, the low pressure air inlet hole 32, and the air outlet hole 34 are all disposed on the block 36; the cover 35 is mounted on the block 36, and the cover 35 is used for sealing the first inner hole 311; opposite ends of the elastic member 1 are respectively abutted against the cover 35 and the slide rod 2. As can be appreciated, the air passage hole group 31, the high pressure air inlet hole 33, the low pressure air inlet hole 32 and the air outlet hole 34 are all straight holes, so that the manufacturing difficulty of the mounting block 3 is reduced.
In one embodiment, as shown in fig. 1, the sliding rod 2 is further provided with a plugging hole 27, and an end of the elastic member 1 away from the cover 35 is plugged into the plugging hole 27. It will be appreciated that the insertion hole 27 is provided at one end of the slide bar 2, and the end of the elastic member 1 remote from the cover 35 is inserted into the insertion hole 27, thereby ensuring the stability of the installation of the elastic member 1.
In one embodiment, as shown in fig. 3 and 5, the high-low pressure oxygen output structure further comprises a high-pressure air inlet joint 5, a low-pressure air inlet joint 6 and an air outlet joint 7; the high-pressure air inlet joint 5 is installed in the high-pressure air inlet hole 33, the low-pressure air inlet joint 6 is installed in the low-pressure air inlet hole 32, and the air outlet joint 7 is installed in the air outlet hole 34. As will be appreciated, the high pressure inlet connector 5 communicates with the high pressure inlet aperture 33, the low pressure inlet connector 6 communicates with the low pressure inlet aperture 32, and the outlet connector 7 communicates with the outlet aperture 34; in this embodiment, the design of the high-pressure air inlet connector 5, the low-pressure air inlet connector 6 and the air outlet connector 7 improves the convenience of connecting the high-pressure oxygen output structure with external devices (such as pipelines).
The utility model also provides a breathing machine comprising the high-low pressure oxygen output structure.
The above embodiments of the present utility model are merely examples of the high-low pressure oxygen output structure and the breathing machine, and are not intended to limit the present utility model, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model and the principle of operation should be included in the protection scope of the present utility model.
Claims (10)
1. The high-low pressure oxygen output structure is characterized by comprising an elastic piece, a sliding rod and a mounting block provided with an air passage hole group, wherein the air passage hole group comprises a first inner hole, a first air passage, a second inner hole, a second air passage and a third inner hole which are sequentially communicated; the mounting block is also provided with a low-pressure air inlet hole communicated with the first inner hole, a high-pressure air inlet hole communicated with the third inner hole and an air outlet hole communicated with the second inner hole and/or the second air passage;
the sliding rod is provided with a first blocking part and a second blocking part which are distributed at intervals; the sliding rod is slidably arranged in the air passage hole group, and the opposite ends of the elastic piece are respectively abutted against the sliding rod and the inner wall of the first inner hole;
the first blocking portion slides between the first inner bore and the first air passage, and the second blocking portion slides between the second air passage and the third inner bore.
2. The high-low pressure oxygen output structure according to claim 1, wherein an inner diameter of the first air passage is larger than an inner diameter of the first inner hole, and an inner diameter of the first air passage is larger than an inner diameter of the second inner hole, and an outer diameter of the first blocking portion is smaller than the inner diameter of the first air passage;
the inner diameter of the second air passage is larger than that of the second inner hole, the inner diameter of the second air passage is larger than that of the third inner hole, and the outer diameter of the second plugging part is smaller than that of the second air passage.
3. The high-low pressure oxygen output structure of claim 2, wherein the inner diameter of the first inner bore, the inner diameter of the second inner bore, and the inner diameter of the third inner bore are all equal; the inner diameter of the first air passage is equal to the inner diameter of the second air passage.
4. The high-low pressure oxygen output structure according to claim 1, wherein a third blocking part is further arranged on the sliding rod, and the first blocking part is positioned between the third blocking part and the second blocking part; the third plugging part is slidably mounted in the first inner hole and is used for plugging the first inner hole.
5. The high-low pressure oxygen output structure according to claim 4, wherein the sliding rod is provided with a third protruding part, a first protruding part and a second protruding part which are sequentially distributed at intervals, the first protruding part is provided with a first annular groove, the second protruding part is provided with a second annular groove, and the third protruding part is provided with a third annular groove;
the first blocking part is a first sealing ring arranged in the first annular groove, the second blocking part is a second sealing ring arranged in the second annular groove, and the third blocking part is a third sealing ring arranged in the third annular groove.
6. The high-low pressure oxygen output structure according to claim 1, wherein the mounting block is further provided with a mounting port communicated with the third inner hole, the high-low pressure oxygen output structure further comprises a safety valve mounted on the mounting block, and an inlet of the safety valve is communicated with the mounting port; the safety valve is used for releasing pressure of the third inner hole when the gas pressure of the third inner hole is larger than the preset pressure.
7. The high-low pressure oxygen output structure according to claim 1, wherein the mounting block comprises a cover and a block, and the air passage hole group, the high-pressure air inlet hole, the low-pressure air inlet hole and the air outlet hole are all arranged on the block; the sealing cover is mounted on the block body and is used for sealing the first inner hole; opposite ends of the elastic piece are respectively abutted against the sealing cover and the sliding rod.
8. The structure according to claim 7, wherein the sliding rod is further provided with a plug hole, and one end of the elastic member, which is far away from the sealing cover, is plugged into the plug hole.
9. The high-low pressure oxygen output structure according to claim 1, wherein the high-low pressure oxygen output structure further comprises a high-pressure inlet joint, a low-pressure inlet joint, and an outlet joint; the high-pressure air inlet connector is arranged in the high-pressure air inlet hole, the low-pressure air inlet connector is arranged in the low-pressure air inlet hole, and the air outlet connector is arranged in the air outlet hole.
10. A ventilator comprising a high and low pressure oxygen delivery structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223529994.5U CN219071652U (en) | 2022-12-23 | 2022-12-23 | High-low pressure oxygen output structure and breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223529994.5U CN219071652U (en) | 2022-12-23 | 2022-12-23 | High-low pressure oxygen output structure and breathing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219071652U true CN219071652U (en) | 2023-05-26 |
Family
ID=86405299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223529994.5U Active CN219071652U (en) | 2022-12-23 | 2022-12-23 | High-low pressure oxygen output structure and breathing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219071652U (en) |
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2022
- 2022-12-23 CN CN202223529994.5U patent/CN219071652U/en active Active
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