CN220002674U - Breathing machine air-vent valve and breathing machine - Google Patents
Breathing machine air-vent valve and breathing machine Download PDFInfo
- Publication number
- CN220002674U CN220002674U CN202321574291.6U CN202321574291U CN220002674U CN 220002674 U CN220002674 U CN 220002674U CN 202321574291 U CN202321574291 U CN 202321574291U CN 220002674 U CN220002674 U CN 220002674U
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- pressure regulating
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- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 32
- 230000001105 regulatory effect Effects 0.000 claims abstract description 34
- 238000009434 installation Methods 0.000 claims abstract description 32
- 230000000903 blocking effect Effects 0.000 claims abstract description 24
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000008358 core component Substances 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000004202 respiratory function Effects 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 equipment, and particularly relates to a pressure regulating valve of a breathing machine and the breathing machine. The pressure regulating valve of the breathing machine comprises a valve seat, a valve core, an elastic piece and a regulating piece, wherein the valve seat is provided with a mounting space, an air inlet hole, an air outlet hole and a through hole which are all communicated with the mounting space, and the valve core is provided with an air passage; the valve core is slidably arranged in the installation space, the installation space is divided into a first space and a second space by the valve core, and a blocking part for conducting or blocking an outlet of the air inlet hole is arranged on the valve core; the first space is communicated with the second space through an air passage, and the second space is communicated with the air outlet hole; the adjusting piece is arranged in the through hole, one end of the adjusting piece stretches into the first space and is in butt joint with the elastic piece, and the adjusting piece is used for adjusting the compression amount of the elastic piece; one end of the elastic piece, which is far away from the adjusting piece, and the valve core component. The pressure regulating valve of the breathing machine has the advantages of simple structure, low manufacturing cost and convenient operation.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, and particularly relates to a pressure regulating valve of a breathing machine and the breathing machine.
Background
The breathing machine is a medical instrument which can replace, control or change normal physiological breathing of people, strengthen the ventilation of the lung, improve the respiratory function, lighten the consumption of breathing work and save the heart reserve capacity. The ventilator usually needs to be provided with a pressure reducing valve, and the pressure reducing valve can be used for reducing the pressure of high-pressure gas input from the front end of the ventilator so that the pressure of the gas output by the ventilator is in a proper range.
In the prior art, although some respirators also use pressure reducing valves with adjustable pressure reducing amplitude, the existing pressure reducing valves also have the problems of complex structure, inconvenient adjustment and the like.
Disclosure of Invention
The utility model solves the technical problems of complex structure and inconvenient adjustment of a pressure reducing valve of a breathing machine in the prior art, and provides a pressure regulating valve of the breathing machine and the breathing machine.
In view of the above problems, the pressure regulating valve of the breathing machine provided by the embodiment of the utility model comprises a valve seat, a valve core, an elastic piece and a regulating piece, wherein the valve seat is provided with a mounting space, an air inlet hole, an air outlet hole and a through hole which are all communicated with the mounting space, and the valve core is provided with an air passage;
the valve core is slidably arranged in the installation space, the installation space is divided into a first space and a second space by the valve core, and a blocking part for conducting or blocking an outlet of the air inlet hole is arranged on the valve core; the first space is communicated with the second space through the air passage, and the second space is communicated with the air outlet hole;
the adjusting piece is arranged in the through hole, one end of the adjusting piece stretches into the first space and is in abutting connection with the elastic piece, and the adjusting piece is used for adjusting the compression amount of the elastic piece; one end of the elastic piece, which is far away from the adjusting piece, is connected with the valve core assembly.
Optionally, the adjusting piece comprises an annular base plate and an adjusting rod provided with external threads, the inner wall of the through hole is provided with internal threads, and the adjusting rod is installed in the through hole through the internal threads and the external threads which are in threaded connection; the annular base plate is installed in the first space, and two opposite ends of the annular base plate are respectively abutted with one ends of the adjusting rod and the elastic piece, which are far away from the valve core.
Optionally, a first annular groove is further formed in the inner wall of the first space, which is far away from one end of the second space, and the through hole is communicated with the first annular groove; the annular backing plate is slidably mounted in the first annular groove, and one end, away from the valve core, of the elastic piece extends into the first annular groove and abuts against the annular backing plate.
Optionally, a convex column is arranged on the inner wall of the installation space, the first space comprises an inner hole arranged on the convex column and an outer hole arranged between the convex column and the inner wall of the installation space, the air inlet hole is communicated with the inner hole, the inner hole is communicated with the second space through the air passage, and the first annular groove is arranged between the outer wall of the convex column and the inner wall of the outer hole; one end of the valve core, which is far away from the second space, is inserted into the inner hole in a transmission way.
Optionally, the valve core comprises a first valve core and a second valve core connected with the first valve core, and the outer diameter of the first valve core is smaller than that of the second valve core;
the second valve core is slidably installed in the installation space, and the second valve core is used for dividing the installation space into the first space and the second space; one end of the first valve core, which is far away from the second valve core, stretches into the inner hole, and the plugging part is arranged at one end of the first valve core, which is far away from the second valve core.
Optionally, a second annular groove and a third annular groove are formed in the valve core at intervals respectively, and the pressure regulating valve of the breathing machine further comprises a first sealing ring sleeved in the second annular groove and a second sealing ring sleeved in the third annular groove; the first sealing ring is used for isolating the inner hole from the outer hole, and the second sealing ring is used for isolating the outer hole from the second space.
Optionally, a protruding sleeve extending towards the first space is arranged at the edge of the outlet of the air inlet hole, and the plugging part plugs or conducts the inlet between the air inlet hole and the first space through the protruding sleeve.
Optionally, the elastic element is a spring.
Optionally, the pressure regulating valve of the breathing machine further comprises an air inlet connector arranged on the valve seat, and the air inlet connector is communicated with the inlet of the air inlet hole.
The utility model further provides a breathing machine, which comprises the breathing machine pressure regulating valve.
The high-pressure gas is input into the air inlet, the high-pressure gas in the air inlet drives the valve core to move towards one end far away from the air inlet in the installation space, the blocking part on the valve core is far away from the outlet of the air inlet, the high-pressure gas in the air inlet is sequentially input into the second space through the first space and the air passage, and the high-pressure gas in the second space is output through the air outlet. Wherein the high pressure gas in the first space will have a downward pressure on the valve core, while the elastic member also has a downward pressure on the valve core, and the high pressure gas in the second space has an upward pressure on the valve core, and in order to ensure that the valve core is balanced in the installation space, the pressure of the gas in the second space on the valve core is equal to the sum of the pressure of the elastic member on the valve core and the pressure of the gas in the first space on the valve core, and the pressure of the gas output from the gas outlet is equal to the total pressure of the gas in the second space of the input gas minus the pressure on the valve core.
In the utility model, the adjusting piece can adjust the compression amount of the elastic piece, namely, the pressure of the elastic piece on the valve core can be adjusted, so that the pressure effect of adjusting the gas output by the gas outlet hole is achieved. The pressure regulating valve of the breathing machine has the advantages of simple structure, low manufacturing cost and convenient regulation.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a pressure regulating valve of a ventilator according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a pressure regulating valve of a ventilator according to one embodiment of the present utility model;
fig. 3 is a cross-sectional view of a valve element of a pressure regulating valve of a breathing machine according to an embodiment of the present utility model.
Reference numerals in the specification are as follows:
1. a valve seat; 11. an installation space; 111. a first space; 1111. an inner bore; 1112. an outer aperture; 112. a second space; 113. a first annular groove; 114. a convex column; 12. an air inlet hole; 13. an air outlet hole; 14. a protruding sleeve; 2. a valve core; 21. an airway; 22. a blocking part; 23. a first valve core; 24. a second valve core; 3. an elastic member; 4. an adjusting member; 41. an annular backing plate; 42. an adjusting rod; 5. a first seal ring; 6. a second seal ring; 7. an air inlet 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 and 2, an embodiment of the present utility model provides a pressure regulating valve of a breathing machine, which includes a valve seat 1, a valve core 2, an elastic member 3 and an adjusting member 4, wherein a mounting space 11, an air inlet hole 12, an air outlet hole 13 and a through hole which are all communicated with the mounting space 11 are provided on the valve seat 1, and an air passage 21 is provided on the valve core 2; it is understood that the air inlet hole 12 communicates with the upper portion of the installation space 11, the air outlet hole 13 communicates with the lower portion of the installation space 11, and the elastic member 3 includes, but is not limited to, a spring, a leaf spring, etc.
The valve core 2 is slidably installed in the installation space 11, the installation space 11 is divided into a first space 111 and a second space 112 by the valve core 2, and a blocking part 22 for conducting or blocking the outlet of the air inlet hole 12 is arranged on the valve core 2; the first space 111 is communicated with the second space 112 through the air passage 21, and the second space 112 is communicated with the air outlet hole 13; as will be appreciated, the first space 111 and the second space 112 are not directly connected, and the blocking portion 22 is disposed on top of the valve element 2; when the blocking part 22 is abutted against the inner wall of the outlet of the air inlet hole 12, the air inlet hole 12 is not communicated with the first space 111; when the blocking portion 22 is away from the inner wall of the outlet of the air intake hole 12, the air intake hole 12 communicates with the first space 111.
The adjusting piece 4 is installed in the through hole, one end of the adjusting piece 4 extends into the first space 111 and abuts against the elastic piece 3, and the adjusting piece 4 is used for adjusting the compression amount of the elastic piece 3 (that is, the adjusting piece 4 is used for adjusting the pretightening force of the elastic piece 3 and the valve core 2); the end of the elastic element 3, which is far away from the adjusting element 4, is assembled with the valve core 2. It will be appreciated that the adjusting member 4 includes, but is not limited to, a linear motor, a pneumatic cylinder, a hydraulic cylinder, a screw, etc., and the function of adjusting the compression amount of the elastic member 3 is achieved by adjusting the extension amount of the adjusting member 4 into the first space 111.
Specifically, the high-pressure gas is input into the air inlet hole 12, the high-pressure gas in the air inlet hole 12 drives the valve core 2 to move in the installation space 11 towards one end far away from the air inlet hole 12, the blocking part 22 on the valve core 2 is far away from the outlet of the air inlet hole 12, the high-pressure gas in the air inlet hole 12 is input into the second space 112 through the first space 111 and the air passage 21 in sequence, and the high-pressure gas in the second space 112 is output through the air outlet hole 13. Wherein the high pressure gas in the first space 111 will have a downward pressure on the valve core 2, while the elastic member 3 will also have a downward pressure on the valve core 2, and the high pressure gas in the second space 112 will have an upward pressure on the valve core 2, and in order to ensure that the valve core 2 is balanced in the installation space 11, the pressure of the gas in the second space 112 on the valve core 2 is equal to the sum of the pressure of the elastic member 3 on the valve core 2 and the pressure of the gas in the first space 111 on the valve core 2, and the pressure of the gas output from the gas outlet hole 13 is equal to the total pressure of the gas in the second space 112 of the input gas minus the pressure on the valve core 2.
In the utility model, the adjusting member 4 can adjust the compression amount of the elastic member 3, that is, can adjust the pressure of the elastic member 3 on the valve core 2, thereby achieving the effect of adjusting the pressure of the gas output from the gas outlet hole 13. The pressure regulating valve of the breathing machine has the advantages of simple structure, low manufacturing cost and convenient regulation.
In one embodiment, as shown in fig. 2, the adjusting member 4 includes an annular pad 41 and an adjusting rod 42 provided with external threads, an internal thread is provided on an inner wall of the through hole, and the adjusting rod 42 is installed in the through hole through the internal thread and the external thread which are connected by threads; the annular cushion plate 41 is installed in the first space 111, and opposite ends of the annular cushion plate 41 are respectively abutted against the adjusting rod 42 and one end of the elastic member 3 away from the valve core 2. It will be appreciated that the annular pad 41 is mounted on top of the elastic member 3, one end of the adjusting rod 42 is located outside the mounting space 11, and the other end of the adjusting rod 42 extends into the mounting space 11 through the through hole.
Specifically, by rotating the adjustment lever 42 to adjust the depth of the adjustment lever 42 extending into the first space 111, the adjustment lever 42 adjusts the compression amount of the elastic member 3 through the annular pad. In this embodiment, the adjusting member 4 has a simple structure and low manufacturing cost.
In an embodiment, as shown in fig. 2, a first annular groove 113 is further disposed on an inner wall of the first space 111 at an end far from the second space 112, and the through hole is communicated with the first annular groove 113; the annular backing plate 41 is slidably mounted in the first annular groove 113, and one end of the elastic member 3, which is far away from the valve core 2, extends into the first annular groove 113 and abuts against the annular backing plate 41. As will be appreciated, the first annular groove 113 is provided on the top wall of the first space 111, and the annular shim plate 41 is slidably sleeved on the inner wall of the first annular groove 113. In this embodiment, the annular shim plate 41 slides in the first annular groove 113, thereby ensuring the stability of the movement of the annular shim plate 41 in the first space 111.
In one embodiment, as shown in fig. 2, a boss 114 is disposed on an inner wall of the installation space 11, the first space 111 includes an inner hole 1111 disposed on the boss 114 and an outer hole 1112 disposed between the boss 114 and the inner wall of the installation space 11, the air inlet hole 12 communicates with the inner hole 1111, the inner hole communicates with the second space 112 through the hole 21, and the first annular groove 113 is disposed between an outer wall of the boss 114 and an inner wall of the outer hole 1112; the end of the valve core 2 far away from the second space 112 is inserted into the inner hole 1111 in a driving manner. As will be appreciated, the annular pad 41 is slidably engaged with the boss 114, and the boss 114 is disposed on the top wall of the outer hole 1112 and extends downward; the upper part of the valve core 2 is inserted into the inner hole 1111 of the boss 114, and the inner hole 1111 and the outer hole 1112 are isolated from each other; the inner hole 1111 communicates with the air passage 21 through a gap between the boss 114 and the inner wall of the inner hole 1111.
In an embodiment, as shown in fig. 2 and 3, the valve core 2 includes a first valve core 23 and a second valve core 24 connected to the first valve core 23, and an outer diameter of the first valve core 23 is smaller than an outer diameter of the second valve core 24; it will be appreciated that the first valve core 23 and the second valve core 24 are integrally formed as a structural member, and the air passage 21 is provided on the first valve core 23 and the second valve core 24.
The second spool 24 is slidably installed in the installation space 11, and the second spool 24 serves to partition the installation space 11 into the first space 111 and the second space 112; the end of the first valve core 23 away from the second valve core 24 extends into the inner hole 1111, and the blocking portion 22 is disposed at the end of the first valve core 23 away from the second valve core 24. As can be appreciated, the first valve element 23 may block the outlet of the bore 1111, and the first valve element 23 may slide within the bore 1111; the second valve body 24 is abutted against the inner wall of the installation space 11, so that the second valve body 24 can partition the installation space 11 into a first space 111 and a second space 112. In this embodiment, the valve core 2 has a simple structure and low manufacturing cost.
In an embodiment, as shown in fig. 2 and fig. 3, the valve core 2 is provided with a second annular groove and a third annular groove which are spaced apart from each other, and the pressure regulating valve of the breathing machine further comprises a first sealing ring 5 sleeved in the second annular groove and a second sealing ring 6 sleeved in the third annular groove; the first seal ring 5 is used for blocking the inner hole 1111 and the outer hole 1112, and the second seal ring 6 is used for blocking the outer hole 1112 and the second space 112. As can be appreciated, the first annular groove 113 is disposed on the first valve core 23, the second annular groove is disposed on the second valve core 24, and the first seal ring 5 abuts against the inner wall of the inner hole 1111, so that the first seal ring 5 can ensure insulation between the inner hole 1111 and the outer hole 1112; the second sealing ring 6 abuts against the inner wall of the installation space 11, so that the second sealing ring 6 can ensure tightness between the first space 111 and the second space 112.
In an embodiment, as shown in fig. 1, a protruding sleeve 14 extending toward the first space 111 (i.e., the inner hole 1111) is provided at an outlet edge of the air intake hole 12, and the blocking portion 22 blocks or communicates an inlet between the air intake hole 12 and the first space 111 through the protruding sleeve 14. As can be appreciated, when the blocking portion 22 abuts against the protruding sleeve 14, the blocking portion 22 can block the outlet of the air inlet hole 12, so as to ensure the tightness of the blocking portion 22 for blocking the outlet of the air inlet hole 12; when the blocking portion 22 is away from the protruding sleeve 14, the air outlet hole 13 communicates with the inner hole 1111.
In one embodiment, as shown in fig. 1, the pressure regulating valve of the breathing machine further comprises an air inlet joint 7 mounted on the valve seat 1, and the air inlet joint 7 is communicated with the inlet of the air inlet hole 12. It will be appreciated that the inlet fitting 7 facilitates external plumbing to the inlet aperture 12.
The utility model further provides a breathing machine, which comprises the breathing machine pressure regulating valve.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The utility model provides a breathing machine air-vent valve which characterized in that includes disk seat, case, elastic component and regulating part, be equipped with installation space and all communicate the inlet port, venthole and the through-hole of installation space on the disk seat, be equipped with the air flue on the case;
the valve core is slidably arranged in the installation space, the installation space is divided into a first space and a second space by the valve core, and a blocking part for conducting or blocking an outlet of the air inlet hole is arranged on the valve core; the first space is communicated with the second space through the air passage, and the second space is communicated with the air outlet hole;
the adjusting piece is arranged in the through hole, one end of the adjusting piece stretches into the first space and is in abutting connection with the elastic piece, and the adjusting piece is used for adjusting the compression amount of the elastic piece; one end of the elastic piece, which is far away from the adjusting piece, is connected with the valve core assembly.
2. The pressure regulating valve of a breathing machine according to claim 1, wherein the regulating member comprises an annular backing plate and a regulating rod provided with external threads, an internal thread is provided on the inner wall of the through hole, and the regulating rod is installed in the through hole through the internal thread and the external thread which are connected by threads; the annular base plate is installed in the first space, and two opposite ends of the annular base plate are respectively abutted with one ends of the adjusting rod and the elastic piece, which are far away from the valve core.
3. The pressure regulating valve of a respirator according to claim 2, wherein a first annular groove is further formed in an inner wall of the first space at one end far from the second space, and the through hole is communicated with the first annular groove; the annular backing plate is slidably mounted in the first annular groove, and one end, away from the valve core, of the elastic piece extends into the first annular groove and abuts against the annular backing plate.
4. The pressure regulating valve of claim 3, wherein a boss is provided on an inner wall of the installation space, the first space includes an inner hole provided on the boss and an outer hole provided between the boss and the inner wall of the installation space, the air inlet hole communicates with the inner hole, the inner hole communicates with the second space through the air passage, and the first annular groove is provided between an outer wall of the boss and an inner wall of the outer hole; one end of the valve core, which is far away from the second space, is inserted into the inner hole in a transmission way.
5. The pressure regulating valve of a ventilator of claim 4, wherein said spool comprises a first spool and a second spool connected to said first spool, said first spool having an outer diameter less than an outer diameter of said second spool;
the second valve core is slidably installed in the installation space, and the second valve core is used for dividing the installation space into the first space and the second space; one end of the first valve core, which is far away from the second valve core, stretches into the inner hole, and the plugging part is arranged at one end of the first valve core, which is far away from the second valve core.
6. The pressure regulating valve of claim 4, wherein the valve core is provided with a second annular groove and a third annular groove which are spaced apart from each other, and the pressure regulating valve of the breathing machine further comprises a first sealing ring sleeved in the second annular groove and a second sealing ring sleeved in the third annular groove; the first sealing ring is used for isolating the inner hole from the outer hole, and the second sealing ring is used for isolating the outer hole from the second space.
7. The pressure regulating valve according to any one of claims 1 to 6, wherein a protruding sleeve extending toward the first space is provided at an outlet edge of the air intake hole, and the blocking portion blocks or communicates an inlet between the air intake hole and the first space through the protruding sleeve.
8. The pressure regulating valve according to any one of claims 1 to 6, wherein said elastic member is a spring.
9. The ventilator pressure regulating valve of any of the preceding claims 1-6 further comprising an air inlet fitting mounted to the valve seat, the air inlet fitting communicating with the inlet of the air inlet orifice.
10. A ventilator comprising a ventilator pressure regulating valve as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321574291.6U CN220002674U (en) | 2023-06-16 | 2023-06-16 | Breathing machine air-vent valve and breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321574291.6U CN220002674U (en) | 2023-06-16 | 2023-06-16 | Breathing machine air-vent valve and breathing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220002674U true CN220002674U (en) | 2023-11-14 |
Family
ID=88672506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321574291.6U Active CN220002674U (en) | 2023-06-16 | 2023-06-16 | Breathing machine air-vent valve and breathing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220002674U (en) |
-
2023
- 2023-06-16 CN CN202321574291.6U patent/CN220002674U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000, Building 1, 101, Evergrande Fashion Huigu Building, Fulong Road, Shanghenglang Community, Dalang Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Security Medical Technology Co.,Ltd. Country or region after: China Address before: A1302, Shenzhen national engineering laboratory building, No.20, Gaoxin South 7th Road, high tech Zone community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen Security Medical Technology Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |