CN112228339B - Vortex pressure pump for medical breathing machine - Google Patents
Vortex pressure pump for medical breathing machine Download PDFInfo
- Publication number
- CN112228339B CN112228339B CN202011168218.XA CN202011168218A CN112228339B CN 112228339 B CN112228339 B CN 112228339B CN 202011168218 A CN202011168218 A CN 202011168218A CN 112228339 B CN112228339 B CN 112228339B
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- pressure pump
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- oil
- pressure
- fixed
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- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 239000007921 spray Substances 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 238000005461 lubrication Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 39
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 52
- 239000007789 gas Substances 0.000 description 41
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 19
- 239000001301 oxygen Substances 0.000 description 19
- 229910052760 oxygen Inorganic materials 0.000 description 19
- 239000010687 lubricating oil Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 206010036790 Productive cough Diseases 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000003802 sputum Anatomy 0.000 description 3
- 208000024794 sputum Diseases 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 230000029142 excretion Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- 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. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0057—Pumps therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a vortex type pressure pump for a medical breathing machine, which comprises a pressure pump shell, wherein a compression assembly and a sealing assembly are arranged in the pressure pump shell, the pressure pump shell is connected with a lubrication assembly through the compression assembly, a gas input port is fixed on the outer peripheral surface of the pressure pump shell, the compression assembly comprises a main shaft, a bearing is fixed on the outer peripheral surface of one end of the main shaft, the lubrication assembly comprises an oil cavity and an oil spraying cavity, a spray head is fixed on the inner wall of the oil spraying cavity, the spray head is connected with the bottom end of the oil cavity through a capillary tube, the sealing assembly comprises a high-pressure gas channel, two ends of the high-pressure gas channel are respectively connected with a gas output port and a sealing cavity, the sealing cavity is arranged on the inner wall of the gas input port, and a push ring and a sealing ring are sequentially clamped in the sealing cavity. The invention can effectively utilize residual high-pressure gas, reduce noise when the vortex pressure pump works and improve efficiency.
Description
Technical Field
The invention mainly relates to the technical field of pressure pumps, in particular to a vortex pressure pump for a medical breathing machine.
Background
At present, the medical breathing machine is widely applied to clinical medicine, and is a device capable of replacing, controlling or changing normal physiological breathing of a human body and reducing breathing power consumption, and the medical breathing machine often needs a pressure pump to convey oxygen.
According to the backup pad that patent document provided of application number CN201620606003.4, the top of electric telescopic handle is provided with negative pressure generating device, the oxygen jar is installed to negative pressure generating device's top, the top of oxygen jar is provided with controlling means, controlling means's right side is provided with control button, negative pressure generating device's left side fixedly connected with negative pressure pipeline, negative pressure pipeline's mid-mounting has the switching-over valve, oxygen jar's left side fixedly connected with oxygen pipeline, oxygen pipeline's left end is provided with the respirator, respirator's right side below fixed mounting is at the surface of regulating plate, the below left side of regulating plate is provided with the sputum aspirator, the regulating block sets up on the right side of regulating plate. The medical respirator with the sputum excretion function has the advantages of reasonable structural design, simple operation, wide application range and the like, can effectively relieve the pain of patients, and can be widely popularized and used.
However, the medical ventilator has any defect, for example, although the ventilator has a sputum excretion function, the pressure pump in the medical ventilator often cannot process the excessive high-pressure gas generated by the pressure pump, so that the pressure pump has high noise and high power consumption in use.
Disclosure of Invention
The invention mainly provides a vortex pressure pump for a medical breathing machine, which is used for solving the technical problems in the background technology.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a vortex formula force pump for medical breathing machine, includes the force pump shell, the inside of force pump shell is equipped with compression subassembly and seal assembly, the force pump shell is connected with lubrication assembly through compression subassembly, the outer peripheral face of force pump shell is fixed with the gas input port, force pump shell one side radial planar axis department is fixed with the gas delivery outlet, compression subassembly is including the main shaft, the one end outer peripheral face of main shaft is fixed with the bearing, the main shaft pass through the bearing with the casing of force pump shell rotates to be connected, lubrication assembly is including oil pocket and oil spray chamber, oil pocket and oil spray chamber all set up in on the inside casing of force pump shell, the inner wall of oil spray chamber is fixed with the shower nozzle, the shower nozzle pass through the capillary with the bottom of oil pocket is connected, the shower nozzle is located directly over the bearing, seal assembly is including high-pressure gas passageway, high-pressure gas passageway set up in the force pump shell is close to the one end of quiet turbine disc, the both ends of high-pressure gas passageway are connected with gas delivery outlet and seal chamber respectively, seal chamber inner wall joint seal ring has the seal ring to set up in proper order.
Further, a convex ring is integrally formed on one side surface of the push ring, close to the sealing ring, of the die, a slope is arranged on the inner ring surface of the convex ring, and the slope is 30-45 degrees in inclination.
Further, the inner cavity of the oil cavity is communicated with a high-pressure conveying pipe, the high-pressure conveying pipe is fixed on the outer wall surface of the pressure pump shell, and one end, away from the oil cavity, of the high-pressure conveying pipe is connected with the gas outlet.
Further, a high-pressure air release valve is fixed on the outer peripheral surface of the pressure pump shell, and one end of the high-pressure air release valve, which is close to the oil cavity, is communicated with the oil cavity.
Further, a liquid return cavity is arranged right below the bearing, and the liquid return cavity is arranged on the shell of the pressure pump shell.
Further, the cross section of the liquid return cavity is circular, a drainage slope is arranged on the bottom end surface of the liquid return cavity, and the inclination of the drainage slope is 30-45 degrees.
Further, a one-way valve is fixed on the inner wall of one end of the liquid return cavity, which is close to the oil cavity, and the liquid return cavity is communicated with the oil cavity through the one-way valve.
Further, an air pressure type liquid switch valve is fixed in the liquid return cavity, and the liquid return cavity is connected with the capillary tube through the air pressure type liquid switch valve.
Further, an oil delivery port is fixed on the outer peripheral surface of the pressure pump shell, and an inner cavity of the oil delivery port is communicated with the inside of the oil cavity.
Further, one end of the bearing far away from the bearing is fixed with a movable turbine disc, the movable turbine disc is coupled with a static turbine disc, and the static turbine disc is fixed on the inner wall of the pressure pump shell.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the invention can effectively utilize the surplus high-pressure gas of the pressure pump, reduce the gap between the gas input port and the gas transmission pipe of the oxygen tank, and improve the tightness of the pump body, and specifically comprises the following steps: because the gas outlet is communicated with the high-pressure gas channel, the high-pressure gas channel is communicated with the sealing cavity on the inner wall of the gas inlet, and the push ring in the sealing cavity extrudes the sealing ring which is abutted with the push ring under the help of high-pressure gas to enable the push ring to be close to the oxygen tank gas pipe, so that a gap between the gas inlet and the oxygen tank gas pipe is reduced, and leakage or pollution is prevented.
Secondly, the invention can effectively utilize the surplus high-pressure gas of the pressure pump, assist the pressurization of the oil cavity, and improve the self-lubricating capability of the pressure pump, and specifically comprises the following steps: because the gas output port is used for pressurizing the inside of the oil cavity through the high-pressure conveying pipe, after the pneumatic liquid switch valve in the oil cavity is opened, the spray head in the oil injection chamber guides hydraulic oil in the oil cavity to be sprayed onto the main shaft bearing rotating at a high speed by means of pressure difference for lubrication.
The invention will be explained in detail below with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of the internal structure of the pressure pump housing of the present invention;
FIG. 4 is a schematic view of the structure of the push ring and the convex ring of the present invention;
FIG. 5 is an enlarged view of the structure of the area A in FIG. 3;
FIG. 6 is an enlarged view of the structure of region B in FIG. 3;
fig. 7 is a schematic view of the internal structure of the liquid return chamber of the present invention.
In the figure: 1. a pressure pump housing; 11. a gas inlet; 12. a gas outlet; 2. a compression assembly; 21. a main shaft; 22. an orbiting turbine disk; 23. a stationary turbine disk; 24. a bearing; 3. a lubrication assembly; 31. a high pressure delivery tube; 32. an oil chamber; 321. a high pressure air release valve; 322. an oil delivery port; 323. pneumatic liquid switch valve; 33. an oil spraying chamber; 34. a spray head; 341. a capillary tube; 35. a liquid return cavity; 351. drainage slope; 352. a one-way valve; 4. a seal assembly; 41. a high pressure gas passage; 42. sealing the cavity; 43. a push ring; 431. a convex ring; 44. and (3) a sealing ring.
Detailed Description
In order that the invention may be more fully understood, a more particular description of the invention will be rendered by reference to the appended drawings, in which several embodiments of the invention are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the invention.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly connected to one of ordinary skill in the art to which this invention belongs, and the knowledge of terms used in the description of this invention herein for the purpose of describing particular embodiments is not intended to limit the invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-7, a scroll pressure pump for a medical ventilator includes a pressure pump housing 1, a compression assembly 2 and a sealing assembly 4 are disposed in the pressure pump housing 1, the pressure pump housing 1 is connected with a lubrication assembly 3 through the compression assembly 2, a gas input port 11 is fixed on an outer circumferential surface of the pressure pump housing 1, a gas output port 12 is fixed on a central axis of a radial plane of one side of the pressure pump housing 1, the compression assembly 2 includes a main shaft 21, a bearing 24 is fixed on an outer circumferential surface of one end of the main shaft 21, the main shaft 21 is rotatably connected with a housing of the pressure pump housing 1 through the bearing 24, the lubrication assembly 3 includes an oil cavity 32 and an oil injection chamber 33, the oil cavity 32 and the oil injection chamber 33 are both opened on an inner housing of the pressure pump housing 1, an inner wall of the oil injection chamber 33 is fixed with a spray head 34, the spray head 34 is connected with a bottom end of the oil cavity 32 through a capillary tube, the spray head 34 is located vertically above the bearing 24, the sealing assembly 4 includes a high-pressure body channel 41, the high-pressure body channel is opened near the high-pressure pump housing 41 and the inner wall 42 is sequentially connected with the gas input port 42 and the sealing ring 42, and the sealing ring 42 are sequentially opened near the high-pressure pump channel 41 and the inner wall 42 are sequentially connected with the high-pressure pump channel 42.
Specifically, referring to fig. 2 and 3, an end of the bearing 24 away from the bearing 24 is fixed with an movable turbine disc 22, the movable turbine disc 22 is coupled with a static turbine disc 23, and the static turbine disc 23 is fixed on the inner wall of the pressure pump housing 1, so that the lubrication assembly 3 can compress oxygen from an oxygen tank through the movable turbine disc 22 and the static turbine disc 23 which are coupled with each other, and the oxygen is convenient to be transported.
Specifically, referring to fig. 3, a pneumatic liquid switch valve 323 is fixed inside the oil chamber 32, and the oil chamber 32 is connected to the capillary tube 341 through the pneumatic liquid switch valve 323, so that the oil chamber 32 controls the opening and closing of the nozzle 34 connected to the capillary tube 341 through the pneumatic liquid switch valve 323 in the oil chamber 32.
Specifically, referring to fig. 3, the inner cavity of the oil cavity 32 is connected to a high-pressure delivery pipe 31, the high-pressure delivery pipe 31 is fixed to the outer wall surface of the pressure pump housing 1, one end of the high-pressure delivery pipe 31, which is far away from the oil cavity 32, is connected to the gas outlet 12, so that the gas outlet 12 can pressurize the interior of the oil cavity 32 through the high-pressure delivery pipe 31, the spray head 34 sprays lubricating oil more forcefully, the influence of the lubricating oil sprayed by the spray head 34 due to the air flow generated by the bearing 24 rotating at a high speed is prevented, the lubricating oil cannot be injected into the interior of the bearing 24, a high-pressure air release valve 321 is fixed on the outer peripheral surface of the pressure pump housing 1, one end of the high-pressure air release valve 321, which is close to the oil cavity 32, is communicated with the oil cavity 32, and the medium exceeding a safety value can be discharged by the high-pressure air release valve 321 communicated with the inner cavity 32, so that the safety of the pressure inside the oil cavity 32 is ensured.
Specifically, referring to fig. 4 and 5, a convex ring 431 is integrally formed on a surface of the push ring 43, which is close to the sealing ring 44, through a mold, and a slope is provided on an inner ring surface of the convex ring 431, wherein the slope of the slope is 30 ° to 45 °, so that when the convex ring 431 pushes the sealing ring 44 under the driving of the push ring 43, the slope of 30 ° to 45 ° is provided on the convex ring 431, so that the sealing ring 44 slides on the slope when being pressed, thereby pressing the sealing ring 44 to gradually gather toward a central axis of a radial plane of the sealing ring 44, that is, gathering an oxygen gas pipe passing through the sealing ring 44, and the sealing cavity 42 is opened on an inner wall of the gas outlet 12 due to the sealing ring 44 being clamped inside the sealing cavity 42, so that a gap between the oxygen gas pipe and the gas outlet 12 is reduced and tightness is improved due to the elastic material of the sealing ring 44.
Specifically, referring to fig. 7, a liquid return cavity 35 is disposed directly under the bearing 24, the liquid return cavity 35 is disposed on the casing of the pressure pump casing 1, so that the lubricant dropped on the bearing 24 flows into the oil cavity 32 communicated with the liquid return cavity 35 along the liquid return cavity 35 directly under the bearing, the cross section of the liquid return cavity 35 is circular, a drainage slope 351 is disposed on the bottom surface of the liquid return cavity 35, the gradient of the drainage slope 351 is 30 ° to 45 °, so that the lubricant temporarily stored in the liquid return cavity 35 can flow into the oil cavity 32 along the drainage slope 351 with the gradient of 30 ° to 45 ° at the bottom of the liquid return cavity 35, a one-way valve 352 is fixed on an inner wall of one end of the liquid return cavity 35 close to the oil cavity 32, and the liquid return cavity 35 is communicated with the oil cavity 32 through the one-way valve 352, so that the lubricant in the liquid return cavity 32 flows back into the liquid return cavity 35 through the upper one-way valve 352, and the storage of the liquid return cavity 35 is prevented.
Specifically, referring to fig. 7, an oil delivery port 322 is fixed on the outer peripheral surface of the pressure pump casing 1, and an inner cavity of the oil delivery port 322 is communicated with the interior of the oil cavity 32, so that the oil cavity 32 can be replenished with lubricating oil through the oil delivery port 322 communicated with the inner cavity.
The specific operation mode of the invention is as follows:
when the pressure pump is used for conveying oxygen in the oxygen tank into the main body of the breathing machine, a user firstly starts a motor connected with the main shaft 21, when the main shaft 21 rotates under the drive of the motor, the main shaft 21 drives the movable turbine disc 22 to eccentrically rotate, so that the oxygen in the oxygen tank is sucked from the gas input port 11 fixed on the pressure pump shell 1, the movable turbine disc 22 is mutually coupled with the fixed turbine disc 23 in the pressure pump shell 1, so that the oxygen in the oxygen tank is compressed and is discharged from the gas output port 12 of the pressure pump shell 1 by means of pressure difference, in the process, the gas output port 12 is communicated with the high-pressure gas channel 41, and the high-pressure gas channel 41 is communicated with the sealing cavity 42 on the inner wall of the gas input port 11, so that the pushing ring 43 in the sealing cavity 42 extrudes the sealing ring 44 abutted against the sealing ring 44 to be close to the gas input pipe under the assistance of high-pressure gas, thereby reducing gaps between the gas input port 11 and the oxygen tank pipe and preventing leakage or pollution;
at the same time, the gas output port 12 pressurizes the inside of the oil chamber 32 through the high-pressure delivery pipe 31, so that the air pressure type liquid switching valve 323 in the oil chamber 32 is opened, and the nozzle 34 in the oil injection chamber 33 guides the hydraulic oil in the oil chamber 32 to be injected onto the bearing 24 of the main shaft 21 rotating at a high speed by means of the pressure difference to lubricate.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the embodiments described above, but is intended to be within the scope of the invention, as long as such insubstantial modifications are made by the method concepts and technical solutions of the invention, or the concepts and technical solutions of the invention are applied directly to other occasions without any modifications.
Claims (10)
1. The vortex type pressure pump for the medical breathing machine comprises a pressure pump shell (1) and is characterized in that a compression assembly (2) and a sealing assembly (4) are arranged in the pressure pump shell (1), the pressure pump shell (1) is connected with a lubrication assembly (3) through the compression assembly (2), a gas input port (11) is fixed on the peripheral surface of the pressure pump shell (1), and a gas output port (12) is fixed at the central axis of a radial plane at one side of the pressure pump shell (1);
the compression assembly (2) comprises a main shaft (21), a bearing (24) is fixed on the outer peripheral surface of one end of the main shaft (21), and the main shaft (21) is rotationally connected with the shell of the pressure pump shell (1) through the bearing (24);
the lubricating assembly (3) comprises an oil cavity (32) and an oil injection chamber (33), the oil cavity (32) and the oil injection chamber (33) are both arranged on an inner shell of the pressure pump shell (1), a spray head (34) is fixed on the inner wall of the oil injection chamber (33), the spray head (34) is connected with the bottom end of the oil cavity (32) through a capillary tube (341), and the spray head (34) is positioned right above the bearing (24);
the sealing assembly (4) comprises a high-pressure gas channel (41), the high-pressure gas channel (41) is arranged at one end, close to the static turbine disc (23), of the pressure pump shell (1), two ends of the high-pressure gas channel (41) are respectively connected with a gas output port (12) and a sealing cavity (42), the sealing cavity (42) is arranged on the inner wall of the gas input port (11), and a push ring (43) and a sealing ring (44) are sequentially clamped inside the sealing cavity (42).
2. The vortex pressure pump for the medical ventilator according to claim 1, wherein a convex ring (431) is integrally formed on one side surface of the push ring (43) close to the sealing ring (44) through a die, a slope is arranged on the inner ring surface of the convex ring (431), and the slope is 30-45 degrees in inclination.
3. A scroll pressure pump for a medical ventilator according to claim 1, wherein the inner cavity of the oil chamber (32) is in communication with a high pressure delivery tube (31), the high pressure delivery tube (31) being fixed to the outer wall surface of the pressure pump housing (1), the end of the high pressure delivery tube (31) remote from the oil chamber (32) being connected to the gas outlet (12).
4. The scroll pressure pump for a medical ventilator according to claim 1, wherein a high-pressure relief valve (321) is fixed to the outer peripheral surface of the pressure pump housing (1), and an end of the high-pressure relief valve (321) close to the oil chamber (32) is communicated with the oil chamber (32).
5. The vortex pressure pump for a medical ventilator according to claim 1, characterized in that a liquid return cavity (35) is arranged right under the bearing (24), and the liquid return cavity (35) is arranged on the shell of the pressure pump shell (1).
6. The vortex pressure pump for a medical ventilator according to claim 5, characterized in that the cross section of the liquid return cavity (35) is circular, the bottom end surface of the liquid return cavity (35) is provided with a drainage slope (351), and the inclination of the drainage slope (351) is 30-45 °.
7. The vortex pressure pump for a medical ventilator according to claim 6, wherein a one-way valve (352) is fixed on an inner wall of the liquid return chamber (35) near one end of the oil chamber (32), and the liquid return chamber (35) is communicated with the oil chamber (32) through the one-way valve (352).
8. The scroll pressure pump for a medical ventilator according to claim 6, wherein a pneumatic liquid switching valve (323) is fixed inside the oil chamber (32), and the oil chamber (32) is connected to the capillary tube (341) through the pneumatic liquid switching valve (323).
9. The scroll pressure pump for a medical ventilator according to claim 1, wherein an oil delivery port (322) is fixed to an outer peripheral surface of the pressure pump housing (1), and an inner cavity of the oil delivery port (322) is communicated with an inside of the oil chamber (32).
10. A scroll pressure pump for a medical ventilator according to claim 1, characterized in that an orbiting scroll (22) is fixed to the end of the bearing (24) remote from the bearing (24), the orbiting scroll (22) being coupled to a stationary scroll (23), the stationary scroll (23) being fixed to the inner wall of the pressure pump housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011168218.XA CN112228339B (en) | 2020-10-27 | 2020-10-27 | Vortex pressure pump for medical breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011168218.XA CN112228339B (en) | 2020-10-27 | 2020-10-27 | Vortex pressure pump for medical breathing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112228339A CN112228339A (en) | 2021-01-15 |
| CN112228339B true CN112228339B (en) | 2024-02-23 |
Family
ID=74109092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011168218.XA Active CN112228339B (en) | 2020-10-27 | 2020-10-27 | Vortex pressure pump for medical breathing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112228339B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5545021A (en) * | 1993-12-21 | 1996-08-13 | Matsushita Electric Industrial Co., Ltd. | Hermetically sealed rotary compressor having an oil supply capillary passage |
| JP2000110751A (en) * | 1998-10-01 | 2000-04-18 | Sanyo Electric Co Ltd | Oil supply mechanism for scroll type compressor |
| JP2003120556A (en) * | 2001-10-19 | 2003-04-23 | Fujitsu General Ltd | Scroll compressor |
| CN103047147A (en) * | 2013-01-04 | 2013-04-17 | 西安交通大学 | Oil circuit structure of oil-injection scroll compressor |
| CN106286306A (en) * | 2015-05-27 | 2017-01-04 | 珠海格力电器股份有限公司 | Horizontal sliding vane compressor and air conditioner |
| CN206988117U (en) * | 2017-06-15 | 2018-02-09 | 比亚迪股份有限公司 | Compressor |
| CN209012053U (en) * | 2018-08-21 | 2019-06-21 | 盾安环境技术有限公司 | Screw compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5206891B2 (en) * | 2011-03-29 | 2013-06-12 | ダイキン工業株式会社 | Scroll compressor |
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| US5545021A (en) * | 1993-12-21 | 1996-08-13 | Matsushita Electric Industrial Co., Ltd. | Hermetically sealed rotary compressor having an oil supply capillary passage |
| JP2000110751A (en) * | 1998-10-01 | 2000-04-18 | Sanyo Electric Co Ltd | Oil supply mechanism for scroll type compressor |
| JP2003120556A (en) * | 2001-10-19 | 2003-04-23 | Fujitsu General Ltd | Scroll compressor |
| CN103047147A (en) * | 2013-01-04 | 2013-04-17 | 西安交通大学 | Oil circuit structure of oil-injection scroll compressor |
| CN106286306A (en) * | 2015-05-27 | 2017-01-04 | 珠海格力电器股份有限公司 | Horizontal sliding vane compressor and air conditioner |
| CN206988117U (en) * | 2017-06-15 | 2018-02-09 | 比亚迪股份有限公司 | Compressor |
| CN209012053U (en) * | 2018-08-21 | 2019-06-21 | 盾安环境技术有限公司 | Screw compressor |
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| CN112228339A (en) | 2021-01-15 |
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