Ventilator

Abstract

The present application relates to the technical field of medical equipment, and in particular to a ventilator, which includes a ventilator and a humidifier, which are arranged side by side and interconnected with each other, the ventilator includes a ventilator shell and a pumping mechanism arranged in the ventilator shell, the pumping mechanism includes a pumping shell, a pumping inner shell arranged in the pumping shell, and a pumping assembly arranged in the pumping inner shell, the pumping shell is provided with a pumping port assembly passing through the ventilator shell and connected to the outside of the ventilator shell, a silencer channel connecting the pumping shell and the pumping inner shell is provided between the pumping shell and the pumping inner shell, and the pumping inner shell is provided with an air supply port assembly passing through the pumping shell and the ventilator shell and connected to the humidifier. The present application has the following effects: the silencer channel is used to reduce the airflow noise and the working noise of the pumping assembly, so as to reduce the noise hazard of the ventilator when it is working.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment, and in particular to a ventilator. Background Art

[0002] A ventilator is a medical device for treating sleep apnea. For patients with sleep apnea (i.e., those who snore severely), breathing stops for a long time during sleep, the oxygen content in the blood decreases, and the body is in a state of hypoxia, which causes the patient to have shallow sleep and poor sleep quality. Over time, this can cause a series of serious physiological diseases to the patient's body.

[0003] The ventilator in the related art usually includes two components: a respirator and a humidifier. The respirator and the humidifier are arranged side by side and interconnected. The respirator is used as the active air pumping device of the respirator. The respirator actively pumps the airflow into the humidifier; the humidifier is filled with clean water, and the humidifier is used to "humidify" the airflow pumped into the respirator to enhance the humidity of the airflow, and then provide it for the user to breathe. The air pumping function of the respirator often relies on a micro motor fixed in the respirator and a fan blade mechanism driven by the micro motor. The micro motor drives the fan blade to rotate so that the airflow in the respirator flows in the direction close to the humidifier, and at the same time forms a negative pressure in the respirator, so that the airflow enters the respirator under the action of the pressure difference.

[0004] With respect to the above-mentioned related technologies, the inventor believes that when the ventilator is working, it is easy to generate noise hazards including but not limited to the working noise of the micro motor and the flow noise of the airflow, which affects the user's sleep quality. Summary of the invention

[0005] In order to reduce the noise hazard of a ventilator during use, the present application provides a ventilator.

[0006] The present application provides a ventilator that adopts the following technical solution:

[0007] A respirator comprises a respirator and a humidifier, wherein the respirator and the humidifier are arranged side by side and are interconnected, wherein the respirator comprises a respirator shell and an air pumping mechanism arranged in the respirator shell, wherein the air pumping mechanism comprises an air pumping shell, an air pumping inner shell arranged in the air pumping shell, and an air pumping assembly arranged in the air pumping inner shell, wherein the air pumping shell is provided with an air pumping port assembly passing through the respirator shell and connected to the outside of the respirator shell, wherein a silencer passage connecting the air pumping shell and the air pumping inner shell is provided between the air pumping shell and the air pumping inner shell, and wherein the air pumping inner shell is provided with an air supply port assembly passing through the air pumping shell and the respirator shell and connected to the humidifier.

[0008] By adopting the above technical scheme, air is pumped through the air pump assembly to form a negative pressure in the air pump mechanism, and the air flow enters the air pump outer shell through the vent assembly, then enters the air pump inner shell through the silencer channel, and then enters the humidifier through the air supply port assembly, and is humidified by the clean water stored in the humidifier for the user to breathe; the silencer channel is used to reduce the air flow noise and the working noise of the air pump assembly, so as to reduce the noise hazard of the ventilator when it is working.

[0009] Optionally, a flexible sealing seat is provided in the middle portion of the pump air outer shell, and the flexible sealing seat divides the internal space of the pump air outer shell into an upper air cavity and a lower air cavity. The flexible sealing seat is provided with a fixed recess along the direction close to the lower air cavity. The pump air inner shell is snap-fitted and fixed in the fixed recess and is located in the upper air cavity. The silencer channel includes a spiral channel provided in the lower air cavity and tangent to the air flow direction of the pump air port assembly, a vertical channel connecting the spiral channel and the upper air cavity, and an arcuate channel provided between the fixed recess and the pump air inner shell and connected to the upper air cavity and the internal space of the pump air inner shell. The fixed recess is located between the pump air port assembly and the spiral channel.

[0010] By adopting the above technical scheme, the airflow entering from the pump air port assembly flows into the lower air cavity, and enters the upper air cavity through the spiral channel and the vertical channel in turn. When the airflow enters the spiral channel, the flexible sealing seat forms a buffer for the airflow to preliminarily reduce the noise generated by the airflow, and then enters the pump air inner shell through the arc channel, and finally flows into the humidification box through the air supply port assembly. The silencer channel formed by the spiral channel, the vertical channel and the arc channel extends the flow path of the airflow, increases the energy consumption of the airflow, and thus further reduces the flow noise of the airflow.

[0011] Optionally, a protruding head is provided at one end of the pump air inner shell away from the flexible sealing seat, and an embedding groove is provided at one side of the pump air outer shell close to the protruding head, and the protruding head is embedded in the embedding groove.

[0012] By adopting the above technical solution, the raised head cooperates with the embedding groove to form a limit, thereby enhancing the stability of the pump air inner shell on the flexible sealing seat; when the pump air component in the pump air inner shell works and causes the pump air inner shell to vibrate, the flexible sealing seat can buffer the vibration of the pump air inner shell to reduce the working noise of the pump air component.

[0013] Optionally, an elastic pressing portion is fixed to the bottom of the embedding groove, the elastic pressing portion abuts against the raised head, and the pump air outer shell presses and fixes the pump air inner shell on the flexible sealing seat through the elastic pressing portion.

[0014] By adopting the above technical scheme, the pump air outer shell presses and fixes the pump air inner shell on the flexible sealing seat through the elastic pressing part. The elastic pressing part further improves the connection effect between the pump air inner shell and the flexible sealing seat, so that the pump air inner shell is not easy to shake, thereby making the flexible sealing seat have a better shock-absorbing effect on the pump air inner shell, thereby further reducing the working noise of the pump air assembly.

[0015] Optionally, the pump air outer shell is provided with a guide channel at the air flow outlet of the vertical channel, one end of the guide channel is communicated with the vertical channel, and the other end of the guide channel extends in a direction close to the pump air inner shell.

[0016] By adopting the above technical solution, the guide channel is used to guide the airflow entering the upper air cavity along the vertical channel, so that the airflow entering the upper air cavity is smoother during circulation, thereby reducing airflow noise.

[0017] Optionally, a reverse channel is provided at one end of the pump air inner shell close to the flexible sealing seat, and the reverse channel extends in a direction close to the end of the pump air inner shell away from the flexible sealing seat, and the pump air micropore is provided at the airflow outlet of the reverse channel.

[0018] By adopting the above technical solution, the reverse channel is used to guide the airflow so that the airflow flows more smoothly, thereby reducing the generation of airflow noise.

[0019] Optionally, the pump air casing includes an upper shell body and a lower shell body that are arranged in a matched manner, the flexible sealing seat is arranged at the fixed connection between the upper shell body and the lower shell body, the flexible sealing seat is provided with a ring edge on the side close to the lower shell body, and the lower shell body is provided with a recessed groove for the ring edge to be clamped and fixed.

[0020] By adopting the above technical solution, the ring edge is embedded in the groove to fix the flexible sealing seat on the lower shell body, so that the flexible sealing seat can buffer the airflow entering from the pump air port assembly and the vibration of the pump air inner shell; and the fixed connection between the flexible sealing seat and the lower shell body can form a good seal.

[0021] Optionally, an arc-shaped protrusion is provided on a side of the flexible sealing seat close to the upper shell body, and the arc-shaped protrusion abuts against the upper shell body.

[0022] By adopting the above technical solution, the arc-shaped protrusion generates elastic deformation under the compression of the upper shell to enhance the air tightness of the fixed connection between the upper shell body and the lower shell body, thereby making it difficult for the air flow to leak from the pump air shell.

[0023] Optionally, the air supply port assembly includes a shell body tube fixed on the pump air inner shell and tangent to the air flow direction of the pump air inner shell, a connecting pipe arranged at the end of the shell body tube away from the pump air inner shell, and an elastic joint connecting the shell body tube and the connecting pipe, and a rectifier assembly is provided in the connecting pipe.

[0024] By adopting the above technical solution, the rectifying assembly is used to rectify the airflow flowing to the connecting pipe, so that the irregular flow of the airflow is changed into a regular flow of the airflow, thereby further reducing the airflow noise.

[0025] Optionally, the fairing assembly includes a front fairing and a rear fairing which are arranged in sequence along the airflow direction of the connecting pipe, and the front fairing and the rear fairing are both provided with fairing channels, and the number of fairing channels of the rear fairing is greater than the number of fairing channels of the front fairing.

[0026] By adopting the above technical solution, the rectifying effects of the front rectifying parts and the rear rectifying parts are gradually strengthened, so that the airflow in the connecting pipe can achieve a more regular flow, thereby achieving a better noise reduction effect of the rectifying assembly.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. By setting up a silencer channel, the silencer channel is used to reduce the airflow noise and the working noise of the pump gas component to reduce the noise hazard of the ventilator when it is working;

[0029] 2. By setting up a rectifying component, the irregular airflow is transformed into a regular airflow, thereby further reducing the airflow noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the ventilator in the embodiment of the present application;

[0031] Figure 2 It is a schematic diagram of the structure of the respirator in the embodiment of the present application;

[0032] Figure 3 is a structural schematic diagram of the air pumping mechanism in the embodiment of the present application;

[0033] Figure 4 is a longitudinal cross-sectional view of the air pumping mechanism in the embodiment of the present application;

[0034] Figure 5 yes Figure 4 Enlarged view of part A in the middle;

[0035] Figure 6 is a schematic structural diagram of a flexible sealing seat in an embodiment of the present application;

[0036] Figure 7 is a transverse cross-sectional view of the air pump mechanism at the spiral channel in the embodiment of the present application;

[0037] Figure 8 yes Figure 4 Enlarged view of middle part B;

[0038] Fig. 9 yes Figure 4 Enlarged view of the middle C part;

[0039] Fig.10 is a longitudinal cross-sectional view of the pump gas assembly in the embodiment of the present application;

[0040] Fig.11 is a transverse cross-sectional view of the air pump mechanism at the air supply port assembly in the embodiment of the present application;

[0041] Fig.12 yes Fig.11 Enlarged view of part D in the middle.

[0042] Description of reference numerals: 1. Respirator housing; 2. Pump housing; 21. Upper housing; 211. Guide channel; 212. Embossed groove; 213. Elastic pressing portion; 22. Lower housing; 221. Sinking groove; 222. Partition plate; 2221. Sealing groove; 223. Spiral channel; 224. Column tube; 225. Vertical channel; 3. Pump inner housing; 31. Reverse channel; 32. Partition plate; 321. Pump micropore; 33. Raised head; 34. Inner spiral groove; 4. Pump assembly; 41. Pump air fan blades; 42, micro motor; 5, flexible sealing seat; 51, ring edge; 511, sealing part; 52, arc-shaped protrusion; 53, fixed depression; 54, sunken groove; 541, arc-shaped channel; 6, upper air cavity; 7, lower air cavity; 8, pump air inlet assembly; 81, pump air pipeline; 82, pump air port; 83, air filter; 9, air supply inlet assembly; 91, shell body tube; 92, connecting pipe; 93, elastic joint; 94, rectification assembly; 941, front rectification component; 942, rear rectification component. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-12 This application is described in further detail.

[0044] The present application embodiment discloses a ventilator. Figure 1 , the ventilator includes a respirator and a humidifier.

[0045] The respirator and the humidifier are arranged side by side and are interconnected. The respirator is used to actively pump airflow and supply the airflow to the humidifier; the humidifier stores clean water, and when the airflow passes through the humidifier, the water content in the airflow increases, the airflow is humidified, and the humidified airflow is led out of the humidifier for the user to breathe.

[0046] Reference Figure 2The respirator includes a respirator housing 1 and a pumping mechanism. The respirator housing 1 is used as an outer protective structure, and the pumping mechanism is fixed in the respirator housing 1, and the pumping mechanism is used to supply airflow into the humidifier. The respirator housing 1 is provided with a control panel and control buttons, etc., so that the user can set the working parameters of the respirator.

[0047] Reference Figure 3 and Figure 4 The air pumping mechanism includes an air pumping outer shell 2, an air pumping inner shell 3 and an air pumping assembly 4. The air pumping outer shell 2 includes an upper shell body 21 and a lower shell body 22 that are arranged in a matched manner. The lower shell body 22 is fixedly connected to the respirator outer shell 1. The two can be fixed by snap-fitting or by bolts. The lower shell body 22 has openings at both ends, and the end of the lower shell body 22 away from the upper shell body 21 is closed by the respirator outer shell 1. The end of the upper shell body 21 close to the lower shell body 22 is open and the end away from the lower shell body 22 is closed.

[0048] A flexible sealing seat 5 is provided at the fixed connection between the upper shell body 21 and the lower shell body 22. The flexible sealing seat 5 can be made of a flexible material such as composite rubber, and the flexible sealing seat 5 divides the internal space of the pump housing 2 into an upper air cavity 6 and a lower air cavity 7.

[0049] Reference Figure 4 and Figure 5 The outer edge of the flexible sealing seat 5 close to the lower shell 22 is fixed with an annular edge 51, which is formed by the outer edge of the flexible sealing seat 5 extending in the direction close to the lower shell 22. A sink groove 221 is provided at one end of the lower shell 22 close to the upper shell 21, and the annular edge 51 is embedded in the sink groove 221 to achieve the fixation of the flexible sealing seat 5 on the lower shell 22, and the fixed connection between the flexible sealing seat 5 and the lower shell 22 can form a good seal.

[0050] An arc-shaped protrusion 52 is fixed on one side of the flexible sealing seat 5 close to the upper shell body 21. The arc-shaped protrusion 52 is formed by the flexible sealing seat 5 extending in the direction close to the upper shell body 21. The arc-shaped protrusion 52 abuts against the end of the upper shell body 21, and the arc-shaped protrusion 52 generates elastic deformation under the compression of the upper shell body 21 to enhance the air tightness of the fixed connection between the upper shell body 21 and the lower shell body 22, so that the air flow is not easy to leak from the pump air housing 2.

[0051] Reference Figure 4 and Figure 6A fixed recess 53 is provided in the middle of the flexible sealing seat 5, and the fixed recess 53 is formed by the flexible sealing seat 5 extending in the direction close to the lower air cavity 7. The horizontal cross section of the fixed recess 53 is circular. A sunken groove 54 is provided on the side wall of the fixed recess 53, and a plurality of sunken grooves 54 are provided at equal intervals along the circumference of the flexible sealing seat 5, and the plurality of sunken grooves 54 are interconnected in the middle of the flexible sealing seat 5. This embodiment is described by taking three sunken grooves 54 as an example. The sunken groove 54 is formed by the side wall of the fixed recess 53 further extending in the direction close to the lower air cavity 7, and the sunken groove 54 is arranged in an arc direction.

[0052] Reference Figure 4 and Figure 7 A pump air inlet assembly 8 is fixed on the lower shell body 22. The pump air inlet assembly 8 passes through the respirator shell 1 and is connected to the outside of the respirator shell 1. The pump air inlet assembly 8 includes a pump air pipeline 81 and a pump air port 82. The pump air pipeline 81 is in a square tube shape. The pump air pipeline 81 is fixedly connected to the lower shell body 22 and communicates with the lower air cavity 7.

[0053] The pump air port 82 is in the shape of a circular tube and is fixed to one end of the pump air pipeline 81 away from the lower shell 22. When the respirator pumps air into the air, the air enters the lower air cavity 7 from the pump air port assembly 8. An air filter 83 is clamped and fixed on the pump air port 82, and the air filter 83 is used to filter the air entering the lower air cavity 7 to improve the cleanliness of the air.

[0054] The lower shell body 22 is fixed with a partition 222, and the partition 222 and the shell wall of the lower shell body 22 enclose a spiral channel 223. The spiral channel 223 is located at the outer edge of the lower shell body 22, and the spiral channel 223 is arranged in the lower air cavity 7. The spiral channel 223 is tangent to the air flow direction of the pump air port assembly 8, and the air flow entering the lower air cavity 7 through the pump air port assembly 8 flows along the extension direction of the spiral channel 223.

[0055] The fixed recess 53 of the flexible sealing seat 5 is located between the pump air port assembly 8 and the spiral channel 223. When the airflow passes through the pump air port assembly 8 and enters the lower air cavity 7, the flexible sealing seat 5 can use its own elasticity to buffer the airflow to preliminarily reduce the noise generated by the airflow.

[0056] Reference Figure 4 The lower shell body 22 is fixed with a column tube 224 at the airflow outlet of the spiral channel 223. The cross section of the column tube 224 is in the shape of a waist-shaped hole, one end of the column tube 224 extends into the spiral channel 223, and the other end of the column tube 224 extends in a direction close to the upper shell body 21. The internal space of the column tube 224 forms a vertical channel 225, and the vertical channel 225 is connected between the spiral channel 223 and the upper air cavity 6. The airflow entering the spiral channel 223 can enter the upper air cavity 6 through the vertical channel 225.

[0057] Reference Figure 4 good Figure 8 The ring edge 51 is fixed with a sealing portion 511 located on one side of the inner side of the ring edge 51 at a position corresponding to the spiral channel 223, and the partition plate 222 is provided with a sealing groove 2221 for the sealing portion 511 to be embedded. The sealing portion 511 cooperates with the sealing groove 2221 to enhance the sealing effect of the flexible sealing seat 5 and the lower shell body 22 at the airflow outlet of the spiral channel 223.

[0058] Reference Figure 4 The upper shell body 21 is provided with a guide channel 211 at the airflow outlet of the vertical channel 225. The guide channel 211 is formed by the shell wall of the upper shell body 21 at the corresponding position of the vertical channel 225 extending in a direction away from the lower shell body 22, and one end of the guide channel 211 is connected to the vertical channel 225, and the other end of the guide channel 211 extends horizontally in a direction close to the pump air inner shell 3. The guide channel 211 is used to guide the airflow entering the upper air cavity 6 along the vertical channel 225, so that the airflow entering the upper air cavity 6 is smoother during circulation, thereby reducing airflow noise.

[0059] The pump air inner shell 3 is a rotating body with a vertical axis. One end of the pump air inner shell 3 close to the flexible sealing seat 5 is clamped and fixed in the fixed recess 53. The shell wall of the pump air inner shell 3 and the groove wall of the recessed groove 54 enclose an arcuate channel 541, which is used to connect the upper air cavity 6 and the internal space of the pump air inner shell 3. The flexible sealing seat 5 can further buffer the airflow when the airflow passes through the arcuate channel 541, thereby further reducing the airflow noise.

[0060] The spiral channel 223, the vertical channel 225 and the arcuate channel 541 can also jointly constitute a silencer channel. The airflow in the lower air cavity 7 enters the upper air cavity 6 along the spiral channel 223 and the vertical channel 225 in turn, and then enters the pump air inner shell 3 through the arcuate channel 541, which extends the path of the airflow and increases the energy consumption of the airflow, thereby achieving the purpose of weakening the airflow noise.

[0061] Reference Figure 4 and Fig. 9 A reverse channel 31 is provided at one end of the pump gas inner shell 3 close to the flexible sealing seat 5. The reverse channel 31 is formed by the pump gas inner shell 3 extending in a direction close to the end of the pump gas inner shell 3 away from the flexible sealing seat 5, and the side wall of the reverse channel 31 is arranged along the arc direction. The pump gas inner shell 3 is provided with a partition plate 32 at the air flow outlet of the reverse channel 31. The partition plate 32 is circular, and the partition plate 32 is evenly distributed with pump gas micropores 321 connecting the arc channel 541 and the internal space of the pump gas inner shell 3. After the airflow passes through the arc channel 541, it enters the internal space of the pump gas inner shell 3 through the reverse channel 31 and the pump gas micropores 321 in turn. The reverse channel 31 is used to guide the airflow to make the circulation of the airflow smoother, thereby reducing the generation of airflow noise.

[0062] Reference Figure 4 and Fig.10 The end of the pump gas inner shell 3 away from the flexible sealing seat 5 is provided with a protruding head 33, and the side of the upper shell body 21 close to the protruding head 33 is provided with an embedding groove 212, which is formed by the closed end of the upper shell body 21 extending in a direction away from the lower shell body 22. The protruding head 33 is embedded in the embedding groove 212, and the protruding head 33 and the embedding groove 212 cooperate to form a limit, thereby enhancing the stability of the pump gas inner shell 3 on the flexible sealing seat 5.

[0063] An elastic pressing portion 213 is provided at the bottom of the embedding groove 212. The elastic pressing portion 213 can also be made of a composite rubber material. The elastic pressing portion 213 is disc-shaped and is embedded in the bottom of the embedding groove 212. The elastic pressing portion 213 abuts against the raised head 33, and the upper shell body 21 presses and fixes the pump gas inner shell 3 on the flexible sealing seat 5 through the elastic pressing portion 213. When the elastic pressing portion 213 is pressurized, it can be elastically deformed. The elastic pressing portion 213 is used to further improve the connection effect between the pump gas inner shell 3 and the flexible sealing seat 5, so that the pump gas inner shell 3 is not easy to shake.

[0064] The pump air assembly 4 is fixed in the pump air inner shell 3, and the pump air assembly 4 includes pump air blades 41 arranged in sequence along the air flow direction in the pump air inner shell 3 and a micro motor 42 driving the pump air blades 41 to rotate, and the micro motor 42 is fixed on the inner bottom wall of the raised head 33. When the micro motor 42 drives the pump air blades 41 to rotate, the air flow in the respirator can be circulated.

[0065] Reference Fig.11 , an air supply port assembly 9 is provided on the pump air inner shell 3. The air supply port assembly 9 passes through the pump air outer shell 2 and the respirator outer shell 1, and the air supply port assembly 9 is used to connect the pump air inner shell 3 and the humidifier. The air supply port assembly 9 includes a shell body tube 91, a connecting tube 92 and an elastic joint 93. The shell body tube 91 is connected to the pump air inner shell 3, and the shell body tube 91 is fixedly connected to the pump air inner shell 3. The shell body tube 91 is tangent to the air flow direction of the pump air inner shell 3, and the inner wall of the pump air inner shell 3 is correspondingly provided with an inner spiral groove 34, so that the air flow in the upper air cavity 6 can enter the shell body tube 91 more smoothly.

[0066] The connecting pipe 92 is arranged at one end of the shell body tube 91 away from the pump gas inner shell 3, and the connecting pipe 92 is coaxially arranged with the shell body tube 91. The end of the connecting pipe 92 away from the shell body tube 91 is used to communicate with the humidifier. The connecting pipe 92 and the shell body tube 91 are connected through an elastic joint 93. The middle part of the elastic joint 93 is in the shape of a circular tube, and the two ends of the elastic joint 93 are in the shape of a cone tube, and the large end of the end of the elastic joint 93 is the end away from the middle of the elastic joint 93, and the small end of the end of the elastic joint 93 is the end close to the middle of the elastic joint 93. The connecting pipe 92 and the end of the shell body tube 91 close to the elastic joint 93 are both plugged and fixed with the elastic joint 93. The airflow in the pump gas inner shell 3 passes through the connecting pipe 92, the elastic joint 93 and the connecting pipe 92 in sequence and circulates into the humidification box.

[0067] Reference Fig.11 and Fig.12 A rectifying assembly 94 is fixed in the connecting pipe 92, and the rectifying assembly 94 is used to rectify the airflow flowing to the connecting pipe 92, so that the irregular flow of the airflow is changed into a regular flow of the airflow, thereby further reducing the airflow noise.

[0068] The rectifying assembly 94 includes a front rectifying piece 941 and a rear rectifying piece 942, and the front rectifying piece 941 and the rear rectifying piece 942 are sequentially arranged along the airflow direction of the connecting pipe 92. The front rectifying piece 941 and the rear rectifying piece 942 are both provided with rectifying channels, and the number of rectifying channels of the rear rectifying piece 942 is greater than the number of rectifying channels of the front rectifying piece 941. The gradual strengthening of the rectifying effect of the front rectifying piece 941 and the rear rectifying piece 942 can make the airflow in the connecting pipe 92 flow more regularly, thereby making the noise reduction effect of the rectifying assembly 94 better.

[0069] The implementation principle of a ventilator in the embodiment of the present application is as follows: when using the ventilator, the user first sets the working parameters of the ventilator through the control panel and the control button, and then drives the pump air fan blade 41 to rotate through the micro motor 42, so that a negative pressure is formed in the pump air mechanism. At this time, the airflow outside the ventilator enters the lower air cavity 7 through the air filter 83, the pump air port 82 and the pump air pipeline 81 in turn, and is buffered by the end of the flexible sealing seat 5 close to the lower shell body 22, and then flows to the vertical channel 225 through the spiral channel 223; after the airflow passes through the vertical channel 225, it reaches the upper air cavity 6 under the guiding effect of the guide channel 211; the airflow in the upper air cavity 6 enters the pump air inner shell 3 through the arc channel 541 and the reverse channel 31 in turn; the spiral channel 223, the vertical channel 225 and the arc channel 541 constitute a silencer channel, which extends the airflow flow path and weakens the flow noise of the airflow. The airflow in the pump air inner shell 3 is then circulated to the humidification box through the shell body tube 91, the elastic joint 93 and the connecting pipe 92. Clean water is added to the humidification box, and the water content of the airflow increases after the humidification, and the humidified airflow is led out for the user to breathe.

[0070] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A ventilator, characterized in that: The invention comprises a respirator and a humidifier, wherein the respirator and the humidifier are arranged side by side and are interconnected. The respirator comprises a respirator shell (1) and an air pumping mechanism arranged in the respirator shell (1). The air pumping mechanism comprises an air pumping shell (2), an air pumping inner shell (3) arranged in the air pumping shell (2), and an air pumping assembly (4) arranged in the air pumping inner shell (3). The air pumping shell (2) is provided with an air pumping port assembly (8) passing through the respirator shell (1) and communicating with the outside of the respirator shell (1). A silencer passage connecting the air pumping shell (2) and the air pumping inner shell (3) is provided between the air pumping shell (2) and the air pumping inner shell (3). The air pumping inner shell (3) is provided with an air supply port assembly (9) passing through the air pumping shell (2) and the respirator shell (1) and communicating with the humidifier. A flexible sealing seat (5) is provided in the middle of the pump air housing (2), and the flexible sealing seat (5) divides the internal space of the pump air housing (2) into an upper air cavity (6) and a lower air cavity (7). The flexible sealing seat (5) is provided with a fixing recess (53) in a direction close to the lower air cavity (7). The pump air inner housing (3) is fixed in the fixing recess (53) and is located in the upper air cavity (6). The muffler channel comprises a spiral channel (223) provided in the lower air cavity (7) and tangent to the air flow direction of the pump air port assembly (8), a vertical channel (225) connecting the spiral channel (223) and the upper air cavity (6), and an arcuate channel (541) provided between the fixing recess (53) and the pump air inner housing (3) and connecting the upper air cavity (6) and the internal space of the pump air inner housing (3). The fixing recess (53) is located between the pump air port assembly (8) and the spiral channel (223). The air supply port assembly (9) comprises a shell body tube (91) fixed on the pump air inner shell (3) and tangent to the air flow direction of the pump air inner shell (3), a connecting pipe (92) provided at one end of the shell body tube (91) away from the pump air inner shell (3), and an elastic joint (93) connecting the shell body tube (91) and the connecting pipe (92), wherein a rectifying assembly (94) is provided in the connecting pipe (92).

2. The ventilator according to claim 1, characterized in that: A protruding head (33) is provided at one end of the pump air inner shell (3) away from the flexible sealing seat (5), and an embedding groove (212) is provided at one side of the pump air outer shell (2) close to the protruding head (33), and the protruding head (33) is embedded in the embedding groove (212).

3. The ventilator according to claim 2, characterized in that: An elastic pressing portion (213) is fixed to the bottom of the embedding groove (212), the elastic pressing portion (213) abuts against the raised head (33), and the pump air outer shell (2) presses and fixes the pump air inner shell (3) on the flexible sealing seat (5) via the elastic pressing portion (213).

4. The ventilator according to claim 1, characterized in that: The pump air outer shell (2) is provided with a guide channel (211) at the air flow outlet of the vertical channel (225); one end of the guide channel (211) is in communication with the vertical channel (225), and the other end of the guide channel (211) extends in a direction close to the pump air inner shell (3).

5. The ventilator according to claim 1, characterized in that: A reverse channel (31) is provided at one end of the pump air inner shell (3) close to the flexible sealing seat (5), and the reverse channel (31) extends in a direction close to one end of the pump air inner shell (3) away from the flexible sealing seat (5), and the pump air micropore (321) is provided at the air flow outlet of the reverse channel (31).

6. The ventilator according to claim 2, characterized in that: The pump housing (2) comprises an upper shell body (21) and a lower shell body (22) which are arranged in a matched manner. The flexible sealing seat (5) is arranged at a fixed connection between the upper shell body (21) and the lower shell body (22). A ring edge (51) is provided on a side of the flexible sealing seat (5) close to the lower shell body (22). The lower shell body (22) is provided with a recessed groove (221) for the ring edge (51) to be clamped and fixed.

7. The ventilator according to claim 6, characterized in that: A curved protrusion (52) is provided on one side of the flexible sealing seat (5) close to the upper shell body (21), and the curved protrusion (52) is in contact with the upper shell body (21).

8. The ventilator according to claim 1, characterized in that: The rectification assembly (94) comprises a front rectification piece (941) and a rear rectification piece (942) which are arranged in sequence along the airflow direction of the connecting pipe (92); the front rectification piece (941) and the rear rectification piece (942) are both provided with rectification channels; the number of rectification channels of the rear rectification piece (942) is greater than the number of rectification channels of the front rectification piece (941).

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