Efficient breathing machine

Abstract

The invention discloses an efficient breathing machine, belongs to the field of auxiliary breathing equipment, and solves the technical problem that various gases cannot be efficiently mixed in the prior art. The efficient breathing machine comprises a shell, a purification shell is arranged in the shell, and an air inlet of the purification shell is communicated with a first air inlet; the air outlet of the purification shell is connected to the airflow mixing mechanism, the air outlet end of the oxygen generation mechanism is also connected to the airflow mixing mechanism, the air outlet end of the airflow mixing mechanism is connected with an air outlet cavity, the air outlet end of the air outlet cavity is provided with a humidification mixing mechanism, the humidification mixing mechanism comprises an air mixing disc, and the air mixing disc is provided with an air inlet pipe and side air inlet holes; an auxiliary mixing cavity communicated with the gas inlet pipe is formed in the gas mixing disc, and a main mixing cavity is formed in the gas mixing disc. The cross-sectional area of the tail end of the auxiliary mixing cavity is smaller than that of the end, close to the air inlet pipe, of the auxiliary mixing cavity, the flow speed of airflow moving to the tail end of the auxiliary mixing cavity is increased, the airflow enters the main mixing cavity through the communicating holes, and the mixing efficiency of water vapor, oxygen and air is improved.

Description

Technical Field

[0001] The present invention relates to the field of assisted breathing devices, and particularly to an efficient ventilator. Background Art

[0002] With the continuous development of medical technology, ventilators are increasingly widely used in clinical treatment. Traditional ventilators are mainly connected to patients through breathing masks to provide assisted breathing support. However, existing ventilators have certain limitations in function.

[0003] In terms of gas mixing, existing ventilators often have the problem of uneven mixing during the mixing of different gases. This may result in unstable gas components inhaled by patients, affecting the treatment effect. At the same time, for treatment scenarios that require specific gas ratios, uneven mixing may not meet medical requirements.

[0004] For example, the sterilization device and ventilator disclosed in CN 221490869 U. In the technical solution disclosed therein, medical oxygen can be introduced into the first intake passage, and air can be introduced into the second intake passage. The oxygen in the first intake passage and the air in the second intake passage can enter the mixing passage for mixing, and finally the mixed gas is output from the outlet passage of the sterilization device and the ventilator. It only relies on the mixing passage to mix air and oxygen and cannot achieve sufficient mixing of the two gases. Summary of the Invention

[0005] The present invention provides an efficient ventilator to solve the technical problem that the prior art cannot efficiently achieve the mixing of multiple gases.

[0006] The technical solution of the present invention is as follows: An efficient ventilator includes a housing. A purification housing is provided inside the housing. A first air inlet is provided at the front end of the housing. An air treatment device is provided inside the purification housing. The air inlet of the purification housing is communicated with the first air inlet. An air inlet fan is installed on the first air inlet. The air outlet of the purification housing is connected to an air flow mixing mechanism. An oxygen generation mechanism is also provided inside the housing. The air outlet end of the oxygen generation mechanism is also connected to the air flow mixing mechanism. The air outlet end of the air flow mixing mechanism is connected to an air outlet cavity. The air outlet cavity is connected to the air outlet end of a humidifier. A humidifying and mixing mechanism is installed at the air outlet end of the air outlet cavity. The humidifying and mixing mechanism includes a mixing air disc. An air inlet pipe and side air inlet holes located outside the air inlet pipe are provided on the front surface of the mixing air disc. A secondary mixing cavity communicated with the air inlet pipe is provided inside the mixing air disc. A main mixing cavity located between the secondary mixing cavities is also provided inside the mixing air disc. A communication hole is provided between the secondary mixing cavity and the main mixing cavity. The secondary mixing cavity extends along the diameter direction of the mixing air disc. The cross-sectional area of the end of the secondary mixing cavity is smaller than the cross-sectional area of the end of the secondary mixing cavity adjacent to the air inlet pipe. The main mixing cavity is connected to an air outlet air pump.

[0007] As a preferred technical solution, the side air inlet holes are strip-shaped and extend along the diameter direction of the mixing air disc.

[0008] As a preferred technical solution, the side air inlet holes are opened on a convex rib. A convex rib cavity communicated with the side air inlet holes is provided inside the convex rib. The convex rib cavity is communicated with the main mixing cavity. A guiding surface is provided on the side surface of the convex rib. The height of one of the adjacent convex ribs is higher than the height of the other convex rib.

[0009] As a preferred technical solution, a guiding partition plate is provided inside the main mixing cavity. The guiding partition plate divides the main mixing cavity into a lower cavity and an upper cavity. The first end of the guiding partition plate is fixed at the end of the lower cavity. The second end of the guiding partition plate extends from the end of the main mixing cavity towards the air inlet pipe. An air vent hole is provided between the second end of the guiding partition plate and the cavity wall of the main mixing cavity. The air vent hole communicates the upper cavity and the lower cavity. An air guiding hole is provided at the end of the lower cavity. The air guiding hole is connected to the air outlet air pump. The upper cavity is connected to the communication hole.

[0010] As a preferred technical solution, the air flow mixing mechanism includes a cylindrical housing. The air inlet end of the cylindrical housing is connected to the air outlet end of the oxygen generating mechanism. A baffle plate is fixedly installed inside the cylindrical housing. A plurality of strip-shaped holes extending vertically are formed in the baffle plate. A flat air outlet pipe with a closed end and extending towards the air mixing disc is installed on each of the strip-shaped holes. The opening of the flat air outlet pipe is communicated with the oxygen generating mechanism. Each of the flat air outlet pipes is parallel to each other and is located inside the cylindrical housing. A gap is provided between adjacent flat air outlet pipes. A second air inlet communicated with the air outlet end of the air treatment device is provided on the cylindrical wall of the cylindrical housing. The gap is communicated with the second air inlet. A plurality of partition plates located in the gap are provided between adjacent flat air outlet pipes. The partition plates divide the gap into a plurality of channels. The partition plates include a first partition plate, a second partition plate, a third partition plate, and a fourth partition plate arranged in sequence. The fourth partition plate is adjacent to the second air inlet, and the first partition plate is away from the second air inlet. The first partition plate abuts tightly against the baffle plate. A first gap is provided between the second partition plate and the baffle plate. A second gap is provided between the third partition plate and the baffle plate. A third gap is provided between the fourth partition plate and the baffle plate. The length of the third gap is greater than the length of the second gap, and the length of the second gap is greater than the length of the first gap. A side air outlet is provided on one side of the flat air outlet pipe adjacent to the channel. A channel adjusting mechanism for adjusting the depth of each channel is further included.

[0011] As a preferred technical solution, the channel adjusting mechanism includes an adjusting plate. An elastic sealing sheet is provided between the end of the adjusting plate and the corresponding partition plate. An up and down movement driving mechanism is provided between the adjusting plate and the housing.

[0012] As a preferred technical solution, a plurality of inner partition plates are fixedly installed inside the flat air outlet pipe. The inner partition plates are parallel to the partition plates. The inner partition plates divide the inner cavity of the flat air outlet pipe into a plurality of inner channels. An inner channel adjusting mechanism for adjusting the depth of the inner channel is provided in the inner channel.

[0013] As a preferred technical solution, the inner channel adjusting mechanism includes movable partitions corresponding to each of the inner channels one by one. The movable partitions are parallel to the inner partitions. A partition elastic sealing sheet is provided between the end of the movable partition and the corresponding inner partition. A first rack is fixedly installed on the movable partition. An inner guiding groove is provided on the inner wall of the air outlet flat pipe. The first rack is movably installed in the inner guiding groove. An installation through hole communicating with the inner guiding groove is provided on the pipe wall of the air outlet flat pipe. An intermediate gear cooperating with the first rack is rotatably installed in the installation through hole. An outer guiding groove communicating with the installation through hole is provided on the outer wall of the air outlet flat pipe. A second rack is movably installed in the outer guiding groove. The second rack also meshes with the intermediate gear. Both the first rack and the second rack extend vertically. The adjusting plate is fixedly installed on the second rack.

[0014] Due to the adoption of the above technical solution, the air inlet pipe is located in the middle of the air mixing disc, and the side air inlet holes are located outside the air inlet pipe. When the air flow moves towards the air mixing disc, the air flow on the outside enters the main mixing chamber through the side air inlet holes, and the air flow in the middle enters the auxiliary mixing chamber from the air inlet pipe. Since the auxiliary mixing chamber and the main mixing chamber communicate with each other, the mixing of the middle air flow and the outside air flow is realized, effectively improving the mixing efficiency of water vapor, oxygen and air. The cross-sectional area of the end of the auxiliary mixing chamber is smaller than the cross-sectional area of the end of the auxiliary mixing chamber adjacent to the air inlet pipe. The air flow moving to the end of the auxiliary mixing chamber increases in flow velocity and enters the main mixing chamber through the communication hole, further improving the mixing efficiency of water vapor, oxygen and air. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an embodiment of the present invention; Figure 2 is a schematic structural diagram of the air mixing disc in an embodiment of the present invention; Figure 3 is Figure 1 a cross-sectional view of; Figure 4 is a cross-sectional view of the convex rib in an embodiment of the present invention; Figure 5 is a schematic structural diagram of the air flow mixing mechanism in an embodiment of the present invention; Figure 6 is Figure 5 a schematic view in the A direction in; Figure 7 is Figure 5 a C-C cross-sectional view in; Figure 8 is Figure 7 a partial enlarged view at I in.

[0016] In the figure: 1. Outer shell, 2. Purification housing, 3. Inlet air fan, 4. Airflow mixing mechanism, 5. Outlet air cavity, 6. Gas mixing plate, 7. Inlet pipe, 8. Communication hole, 9. Secondary mixing cavity, 10. Main mixing cavity, 11. Side air inlet hole, 12. Convex rib, 13. Convex rib cavity, 14. Flow guiding surface, 15. Channel, 16. Cylindrical housing, 17. Air baffle, 18. Side air outlet, 19. Flat air outlet pipe, 20. Gap, 21. First partition board, 22. Second partition board, 23. Third partition board, 24. Fourth partition board, 25. First gap, 26. Second gap, 27. Third gap, 28. Adjusting plate, 29. Elastic sealing sheet, 30. Inner partition board, 31. Inner channel, 32. Movable partition board, 33. First rack, 34. Inner guiding groove, 35. Upper cavity, 36. Partition board elastic sealing sheet, 37. Intermediate gear, 38. Outer guiding groove, 39. Second rack, 40. Lower cavity, 41. Ventilation hole, 42. Air guiding hole, 43. Oxygen generation mechanism, 44. Humidifier, 45. Outlet air pump, 46. Humidification ventilation hole, 47. Second air inlet, 48. Strip-shaped hole, 49. Communication cavity, 50. Flow guiding partition board. Detailed implementation manner

[0017] As Figures 1 to 4As shown in the figure, an efficient ventilator includes a housing 1. Inside the housing 1, there is a purification housing 2. A first air inlet is provided at the front end of the housing 1. An air treatment device is provided inside the purification housing 2. The air inlet of the purification housing 2 is in communication with the first air inlet. An air inlet fan 3 is installed on the first air inlet. The air outlet of the purification housing 2 is connected to an air flow mixing mechanism 4. An oxygen generation mechanism 43 is also provided inside the housing 1. The air outlet end of the oxygen generation mechanism 43 is also connected to the air flow mixing mechanism 4. The air outlet end of the air flow mixing mechanism 4 is connected to an air outlet cavity 5. The air outlet cavity 5 is connected to the air outlet end of a humidifier 44. In this embodiment, a humidification ventilation hole 46 is provided on the air outlet cavity. The humidifier 44 is in communication with the air outlet cavity 5 through the humidification ventilation hole. A humidification and mixing mechanism is installed at the air outlet end of the air outlet cavity 5. The humidification and mixing mechanism includes a mixing disc 6. The front surface of the mixing disc 6 is provided with an air inlet pipe 7 and side air inlet holes 11 located outside the air inlet pipe. An auxiliary mixing cavity 9 in communication with the air inlet pipe 7 is provided inside the mixing disc 6. A main mixing cavity 10 is also provided inside the mixing disc 6 between the auxiliary mixing cavities 9. A communication hole 8 is provided between the auxiliary mixing cavity 9 and the main mixing cavity 10. The auxiliary mixing cavity 9 extends along the diameter direction of the mixing disc 6. The cross-sectional area of the end of the auxiliary mixing cavity 9 is smaller than the cross-sectional area of the end of the auxiliary mixing cavity 9 adjacent to the air inlet pipe 7. The main mixing cavity 10 is connected to an air outlet air pump 45. The air inlet pipe 7 is located in the middle of the mixing disc 6, and the side air inlet holes 8 are located outside the air inlet pipe 7. In this way, when the air flow moves towards the mixing disc 6, the air flow located outside enters the main mixing cavity 10 through the side air inlet holes 8, and the air flow located in the middle enters the auxiliary mixing cavity 9 from the air inlet pipe 7. Since the auxiliary mixing cavity 9 and the main mixing cavity 10 are in communication with each other, the mixing of the middle air flow and the outside air flow is realized, effectively improving the mixing efficiency of water vapor, oxygen and air. The cross-sectional area of the end of the auxiliary mixing cavity 9 is smaller than the cross-sectional area of the end of the auxiliary mixing cavity 9 adjacent to the air inlet pipe 7. The air flow velocity of the air flow moving to the end of the auxiliary mixing cavity 9 increases, and enters the main mixing cavity 10 through the communication hole 8, further improving the mixing efficiency of water vapor, oxygen and air. The air treatment device is used to purify air, and the humidifier is used to atomize sterile water to achieve humidification. The air treatment device, the humidifier, and the oxygen generation mechanism can adopt existing technologies, and their specific structures will not be elaborated here.

[0018] As Figure 2 、 Figure 3 shown, the side air inlet holes 11 are strip-shaped and extend along the diameter direction of the mixing disc 6.

[0019] As Figure 2 、 Figure 4As shown, the side air inlet holes 11 are formed in the convex ribs 12. A convex rib cavity 13 communicating with the side air inlet holes 11 is provided in the convex ribs 12. The convex rib cavity 13 communicates with the main mixing cavity 10. A flow guiding surface 14 is provided on the side surface of the convex ribs 12. The height of one of the adjacent convex ribs 12 is higher than that of the other convex rib 12. When the air flow moves towards the mixing disk 6, under the action of the flow guiding surface 14, part of the air flow that does not enter the side air inlet holes 11 moves towards both sides. Since the height of one of the adjacent convex ribs 12 is higher than that of the other convex rib 12, this part of the air flow can enter the side air inlet holes 11 on the adjacent lower convex rib, so that on the basis of realizing the mixing of the middle air flow and the outer air flow, the mixing of the outer air flow and the outer air flow is realized.

[0020] As Figure 4 As the case may be, a flow guiding partition 50 is provided in the main mixing cavity. The flow guiding partition 50 divides the main mixing cavity into a lower cavity 40 and an upper cavity 35. The first end of the flow guiding partition 50 is fixed at the end of the lower cavity 40. The second end of the flow guiding partition 50 extends from the end of the main mixing cavity 10 towards the direction of the intake pipe 7. An air vent 41 is provided between the second end of the flow guiding partition 50 and the cavity wall of the main mixing cavity 10. The air vent 41 communicates the upper cavity 35 and the lower cavity 40. An air guiding hole 42 is provided at the end of the lower cavity 40. The air guiding hole 42 is connected to the air outlet air pump 45. The upper cavity 35 is connected to the communication hole 8. The cross-sectional area of the end of the auxiliary mixing cavity 9 is smaller than the cross-sectional area of the end of the auxiliary mixing cavity 9 adjacent to the intake pipe 7. The flow velocity of the air flow moving to the end of the auxiliary mixing cavity increases. After entering the upper cavity 40 through the communication hole 8, it pushes the air flow entering from the side air inlet holes 11 towards the air vent 41, and then enters the air guiding hole 42. In this process, the air flow entering from the auxiliary mixing cavity and the air flow entering from the side air inlet holes 11 are efficiently mixed.

[0021] As Figures 5 - 8As shown, the air flow mixing mechanism 4 includes a cylindrical housing 16. The air inlet end of the cylindrical housing 16 is connected to the air outlet end of the oxygen generating mechanism 43. A baffle plate 17 is fixedly installed inside the cylindrical housing. A plurality of strip-shaped holes 48 extending vertically are formed in the baffle plate 17. An air outlet flat tube 19 with a closed end and extending towards the air mixing plate is installed on each of the strip-shaped holes 48. The opening of the air outlet flat tube 19 is communicated with the oxygen generating mechanism 43. The air outlet flat tubes 19 are parallel to each other and are located inside the cylindrical housing 16. A gap 20 is provided between adjacent air outlet flat tubes 19. A second air inlet 47 communicated with the air outlet end of the air treatment device is provided on the cylindrical wall of the cylindrical housing 16. The gap 20 is communicated with the second air inlet 47. A plurality of partition plates located in the gap 20 are provided between adjacent air outlet flat tubes 19. The partition plates divide the gap 20 into a plurality of channels 15. The partition plates include a first partition plate 21, a second partition plate 22, a third partition plate 23, and a fourth partition plate 24 arranged in sequence. The fourth partition plate 24 is adjacent to the second air inlet 47, and the first partition plate 21 is away from the second air inlet 47. The first partition plate 21 abuts against the baffle plate 17. A first gap 25 is provided between the second partition plate 22 and the baffle plate 17. A second gap 26 is provided between the third partition plate 23 and the baffle plate 17. A third gap 27 is provided between the fourth partition plate 24 and the baffle plate 17. The length of the third gap 27 is greater than the length of the second gap 26, and the length of the second gap 26 is greater than the length of the first gap 25. A side air outlet 18 is provided on one side of the air outlet flat tube 19 adjacent to the channel 15. It also includes a channel adjustment mechanism for adjusting the depth of each channel 15. The oxygen output by the oxygen generating mechanism 43 enters the air outlet flat tube 19 and is discharged from the side air outlet 18. The air entering from the first air inlet 4 is blown into the first gap 25, the second gap 26, and the third gap 27 by the air flow entering from the second air inlet 47 after being processed by the air treatment device, and then enters each of the channels 15, where it converges with the oxygen air flow discharged from the side air outlet 18, making the mixing of the two air flows more uniform and effectively improving the mixing efficiency of the two air flows. In this embodiment, a communication cavity 49 is provided inside the housing between the opening of the air outlet flat tube 19 and the air outlet end of the oxygen generating mechanism 43. The oxygen generated by the oxygen generating mechanism 43 enters the communication cavity 49 and then enters the air outlet flat tube 19.

[0022] As Figure 5As shown, the channel adjusting mechanism includes an adjusting plate 28. An elastic sealing sheet 29 is provided between the end of the adjusting plate 28 and the corresponding partition plate. A vertical movement driving mechanism is provided between the adjusting plate 28 and the housing 1. During the ascending or descending process of the adjusting plate 28, the elastic sealing sheet 29 keeps the space between the adjusting plate 28 and the end of the partition plate sealed, preventing air flow from entering the space between the adjusting plate 28 and the partition plate.

[0023] The vertical movement driving mechanism includes a driving motor fixedly installed on the partition plate. An eccentric wheel is fixedly installed on the output shaft of the driving motor, and the eccentric wheel abuts against the lower surface of the adjusting plate 28. The driving motor and the eccentric wheel are not shown in the figure.

[0024] As Figure 7 and Figure 8 As shown, a plurality of inner partition plates 30 are fixedly installed in the air outlet flat pipe 19. The inner partition plates 30 are parallel to the partition plate. The inner partition plates 30 divide the inner cavity of the air outlet flat pipe 19 into a plurality of inner channels 31. An inner channel adjusting mechanism for adjusting the depth of the inner channel 31 is provided in the inner channel 31. By means of the inner channel adjusting mechanism, the depth of the inner channel 31 can be changed, thereby changing the air flow velocity in the inner channel 31.

[0025] As Figure 8As shown, the inner channel adjusting mechanism includes movable partitions 32 corresponding to each of the inner channels 31 one by one. The movable partitions 32 are parallel to the inner partition 30. A partition elastic sealing sheet 36 is provided between the end of the movable partition 32 and the corresponding inner partition 30. A first rack 33 is fixedly installed on the movable partition 32. An inner guiding groove 34 is provided on the inner wall of the air outlet flat pipe 19, and the first rack 33 is movably installed in the inner guiding groove 34. An installation through hole communicating with the inner guiding groove 34 is provided on the pipe wall of the air outlet flat pipe 19, and an intermediate gear 37 cooperating with the first rack 33 is rotatably installed in the installation through hole. An outer guiding groove 38 communicating with the installation through hole is provided on the outer wall of the air outlet flat pipe 19, and a second rack 39 is movably installed in the outer guiding groove 38. The second rack 39 also meshes with the intermediate gear 37. Both the first rack 33 and the second rack 39 extend vertically, and the adjusting plate 28 is fixedly installed on the second rack 39. Due to the arrangement of the first rack 33, the second rack 39 and the intermediate gear 37, when the adjusting plate 28 moves upward under the action of the up and down movement driving mechanism, the second rack 39 moves upward and the first rack 33 moves downward, so that the movable partition 32 can move downward. In this way, when the depth of the inner channel 31 becomes larger, the depth of the channel 15 becomes smaller. At this time, the air flow velocity in the inner channel 31 becomes smaller, and the gas flow velocity in the channel 15 becomes larger. In this way, the gas in the inner channel 31 is not easily mixed into the gas in the channel 15 from the side air outlet 18. When the depth of the inner channel 31 becomes smaller, the depth of the channel 15 becomes larger. At this time, the air flow velocity in the inner channel 31 becomes larger, and the gas flow velocity in the channel 15 becomes smaller, so that the gas in the inner channel 31 is more easily mixed into the channel 15 from the side air outlet 18. In this way, with the flow of the air flow and the up and down movement of the adjusting plate 28, the two gases are fully mixed in the flow direction.

[0026] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A high-efficiency ventilator, characterized in that: The invention comprises a shell (1), wherein a purification shell (2) is arranged inside the shell (1), a first air inlet is arranged at the front end of the shell (1), an air treatment device is arranged inside the purification shell (2), the air inlet of the purification shell (2) is communicated with the first air inlet, an air inlet fan (3) is installed on the first air inlet, the air outlet of the purification shell (2) is connected to an air flow mixing mechanism (4), an oxygen generating mechanism (43) is also arranged inside the shell (1), the air outlet end of the oxygen generating mechanism (43) is also connected to the air flow mixing mechanism (4), the air outlet end of the air flow mixing mechanism (4) is connected to an air outlet cavity (5), the air outlet cavity (5) is connected to the air outlet end of a humidifier (44), and the air outlet end of the air outlet cavity (5) is installed with a humidifier mixing machine The humidification and mixing mechanism comprises an air mixing disk (6), an air inlet pipe (7) and a side air inlet hole (11) located outside the air inlet pipe (7) are provided on the front of the air mixing disk (6), a secondary mixing chamber (9) connected to the air inlet pipe (7) is provided inside the air mixing disk (6), a main mixing chamber (10) located between the secondary mixing chambers (9) is further provided inside the air mixing disk (6), a connecting hole (8) is provided between the secondary mixing chamber (9) and the main mixing chamber (10), the secondary mixing chamber (9) extends along the diameter direction of the air mixing disk (6), the cross-sectional area of ​​the end of the secondary mixing chamber (9) is smaller than the cross-sectional area of ​​one end of the secondary mixing chamber (9) adjacent to the air inlet pipe (7), and the main mixing chamber (10) is connected to an air outlet pump (45).

2. The high-efficiency ventilator according to claim 1, characterized in that: The side air inlet holes (11) are strip-shaped and extend along the diameter direction of the mixing disk (6).

3. The high-efficiency ventilator as claimed in claim 2, characterized in that: The side air inlet hole (11) is formed on the convex rib (12); a convex rib cavity (13) communicating with the side air inlet hole (11) is provided in the convex rib (12); the convex rib cavity (13) is communicated with the main mixing chamber (10); a flow guide surface (14) is provided on a side surface of the convex rib (12); and the height of one of two adjacent convex ribs (12) is higher than the height of the other convex rib (12).

4. The high-efficiency ventilator as claimed in claim 3, characterized in that: A guide baffle (50) is provided in the main mixing chamber, the guide baffle (50) dividing the main mixing chamber into a lower chamber (40) and an upper chamber (35), a first end of the guide baffle (50) is fixed to the end of the lower chamber (40), a second end of the guide baffle (50) extends from the end of the main mixing chamber (10) toward the air inlet pipe (7), an air vent (41) is provided between the second end of the guide baffle (50) and the cavity wall of the main mixing chamber (10), the air vent (41) connecting the upper chamber (35) and the lower chamber (40), an air guide hole (42) is provided at the end of the lower chamber (40), the air guide hole (42) is connected to the air outlet pump (45), and the upper chamber (35) is connected to the connecting hole (8).

5. The high-efficiency ventilator as claimed in claim 3, characterized in that: The air flow mixing mechanism (4) comprises a cylindrical shell (16), the air inlet end of the cylindrical shell (16) being connected to the air outlet end of the oxygen generating mechanism (43), an air baffle plate (17) being fixedly mounted in the cylindrical shell (16), the air baffle plate (17) being provided with a plurality of strip holes (48) extending up and down, each of the strip holes (48) being provided with an air outlet flat pipe (19) having a closed end and extending toward the mixing plate (6), the opening of the air outlet flat pipe (19) being in contact with the oxygen generating mechanism (43), The air generating mechanism (43) is connected to the air handling device, the respective air outlet flat tubes (19) are parallel to each other and are located in the cylindrical shell (16), gaps (20) are provided between adjacent air outlet flat tubes (19), a second air inlet (47) connected to the air outlet end of the air handling device is provided on the cylindrical wall of the cylindrical shell (16), the gap (20) and the second air inlet (47) are connected to each other, a plurality of partitions located in the gaps (20) are provided between adjacent air outlet flat tubes (19), the partitions separate the gaps The air baffle (17) is divided into a plurality of channels (15) by a gap (20), the baffle comprising a first baffle (21), a second baffle (22), a third baffle (23) and a fourth baffle (24) which are arranged in sequence, the fourth baffle (24) being adjacent to the second air inlet (47), the first baffle (21) being away from the second air inlet (47), the first baffle (21) being pressed tightly against the air baffle (17), a first gap (25) being provided between the second baffle (22) and the air baffle (17), the third baffle (23) and the fourth baffle (24) being adjacent to the second air inlet (47), the first baffle (21) being away from the second air inlet (47), the first baffle (21) being pressed tightly against the air baffle (17), the first gap (25) being provided between the second baffle (22) and the air baffle (17), the third baffle (23) and the fourth baffle (24) being adjacent to the second air inlet (47), the first baffle (21) being away from the second air inlet (47), A second gap (26) is provided between the partition plate (23) and the air baffle plate (17), a third gap (27) is provided between the fourth partition plate (24) and the air baffle plate (17), the length of the third gap (27) is greater than the length of the second gap (26), and the length of the second gap (26) is greater than the length of the first gap (25); a side air outlet (18) is provided on a side of the air outlet flat pipe (19) adjacent to the channel (15); and a channel adjustment mechanism for adjusting the depth of each channel (15) is also included.

6. The high-efficiency ventilator as claimed in claim 5, characterized in that: The channel adjustment mechanism comprises an adjustment plate (28), an elastic sealing sheet (29) is provided between the end of the adjustment plate (28) and the corresponding partition plate, and an up-and-down moving drive mechanism is provided between the adjustment plate (28) and the housing (1).

7. The high-efficiency ventilator according to claim 6, characterized in that: A plurality of inner partitions (30) are fixedly installed in the air outlet flat tube (19), the inner partitions (30) are parallel to the partitions, the inner partitions (30) divide the inner cavity of the air outlet flat tube (19) into a plurality of inner channels (31), and an inner channel adjustment mechanism for adjusting the depth of the inner channel (31) is provided in the inner channel (31).

8. The high-efficiency ventilator as claimed in claim 7, characterized in that: The inner channel adjustment mechanism comprises a movable baffle (32) corresponding to each inner channel (31) one by one, the movable baffle (32) being parallel to the inner baffle (30), a baffle elastic sealing sheet (36) being provided between the end of the movable baffle (32) and the corresponding inner baffle (30), a first rack (33) being fixedly mounted on the movable baffle (32), an inner guide groove (34) being provided on the inner wall of the air outlet flat tube (19), the first rack (33) being movably mounted in the inner guide groove (34), and a first rack (33) being fixedly mounted on the inner wall of the air outlet flat tube (19). A mounting through hole is provided which is connected to the inner guide groove (34), and an intermediate gear (37) which cooperates with the first rack (33) is rotatably installed in the mounting through hole. An outer guide groove (38) which is connected to the mounting through hole is provided on the outer wall of the air outlet flat tube (19), and a second rack (39) is movably installed in the outer guide groove (38). The second rack (39) and the intermediate gear (37) are also meshed with each other. The first rack (33) and the second rack (39) both extend up and down, and the adjustment plate (28) is fixedly installed on the second rack (39).

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