Breathing machine

Abstract

The utility model discloses a breathing machine which comprises a machine shell, at least a first installation chamber and a second installation chamber are arranged in the machine shell, the breathing machine further comprises a draught fan installed in the first installation chamber and a water tank detachably installed in the second installation chamber, and a liquid level sensor is installed in the second installation chamber. An air blowing pipe communicated with the interior of the water tank is arranged on the machine shell, the other end of the air blowing pipe extends to the exterior of the machine shell, and a heating plate for heating liquid in the water tank is arranged in the second mounting chamber. The liquid level sensor is mounted in the second mounting chamber, so that the change of the liquid level in the water tank can be detected in real time when the water tank is positioned in the second mounting chamber, and once the water level is too low, power supply and heating to the heating plate can be stopped in time, so that the dry burning phenomenon of the water tank is effectively prevented; by means of the design, potential safety hazards such as fire disasters caused by dry burning are avoided, heating elements of equipment are protected, the overall service life of the breathing machine is prolonged, and the maintenance cost of a user is reduced.

Description

Technical Field

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

[0002] With the increasing prominence of global environmental problems and the continuous fluctuation of air quality in China, chronic respiratory diseases such as obstructive sleep apnea (OSA) and chronic obstructive pulmonary disease (COPD) have become important problems affecting public health.

[0003] As an important means of assisting respiratory treatment, the market of ventilators has thus been significantly expanded. However, some ventilators on the existing market still have many deficiencies in design and function, especially in terms of safety and air filtration efficiency. Specifically, during the humidification and heating process of the ventilator, only a simple water level scale line is used to remind users to add water, lacking an effective dry-burning prevention mechanism, which may lead to dry burning of the water tank, not only affecting the normal service life of the device, but also posing serious safety hazards such as causing fires. Therefore, we provide a ventilator to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a ventilator.

[0005] The purpose of the utility model is realized by the following technical solutions:

[0006] A ventilator, including a casing, the interior of the casing at least has a first installation chamber and a second installation chamber, and also includes a blower installed in the first installation chamber and a water tank detachably installed in the second installation chamber. A liquid level sensor is installed in the second installation chamber. When the water tank is located in the second installation chamber, the liquid level sensor is in close contact with the side wall of the water tank and detects the water level in the water tank. A blow pipe communicating with the inside of the water tank is arranged on the casing, and the other end of the blow pipe extends to the outside of the casing. A heating plate for heating the liquid in the water tank is arranged in the second installation chamber.

[0007] Preferably, when the water tank is located in the second installation chamber, the heating plate is located below the water tank. The water tank includes a left shell and a right shell which are detachably connected. The left shell and the right shell form a containing cavity for storing liquid. An air inlet pipe communicating with the air outlet of the blower and an air outlet pipe communicating with the inlet end of the blow pipe are arranged on the left shell. A water injection port is opened at the top of the right shell, and a cover structure for opening or closing the water injection port is also installed on the left shell.

[0008] Preferably, the cover structure includes a flipping frame rotatably installed on the left shell, and a cover body adapted to the water injection port is integrally arranged on the bottom surface of the end of the flipping frame far from the rotating end.

[0009] Preferably, a heat conduction structure for transferring the heat from the heating plate is detachably installed on the bottom surface of the left housing. The heat conduction structure includes a bottom plate located at the opening of the bottom surface of the left housing. A heat conduction plate adapted to the opening of the bottom surface of the left housing is arranged on the bottom plate. A side plate is integrally arranged on the side surface of the bottom plate. At least one clamping groove is formed on the side surface of the side plate. A clamping block adapted to the number and shape of the clamping grooves is also integrally arranged on the left housing.

[0010] Preferably, a semi-closed flow guiding member adapted to the intake pipe is arranged on the inner wall of the left housing. When in use, the air outlet end of the intake pipe is located in the flow guiding member.

[0011] Preferably, the cross section of the flow guiding member is in a "U" shape.

[0012] Preferably, an air filter element is detachably installed on the side wall of the casing. The air filter element includes a housing. An initial effect filter screen, a HEPA silver-loaded filter screen, an aldehyde-hunting factor filter screen, a purple crystal aldehyde-removing filter screen, and a photocatalyst filter screen are sequentially and evenly spaced from the air inlet end to the air outlet end inside the housing.

[0013] Preferably, a cover plate with a hollow center is arranged at the air inlet end of the air filter element.

[0014] Preferably, a humidifier is arranged at the air outlet end of the blow pipe.

[0015] The utility model has the following advantages:

[0016] 1. By installing a liquid level sensor in the second installation chamber, when the water tank is located in the second installation chamber, the utility model can detect the change of the liquid level in the water tank in real time. Once the water level is too low, the power supply to the heating plate can be stopped in time to effectively prevent the occurrence of the dry burning phenomenon of the water tank. This design not only avoids safety hazards such as fires caused by dry burning, but also protects the heating element of the equipment, prolongs the overall service life of the ventilator, and reduces the maintenance cost of users.

[0017] 2. The utility model guides the air flow from the intake pipe through the flow guiding member, preventing the air flow from the intake pipe from directly blowing onto the water in the accommodation chamber and splashing the water, and reducing the generation of noise due to the non-splashing of water.

[0018] 3. The ventilator of the utility model installs multiple layers of air filter elements on the side wall of the casing. These filter elements are arranged in sequence and filtered layer by layer, effectively removing pollutants such as dust and harmful gases in the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the whole machine of the utility model.

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model in an exploded state from the first perspective.

[0021] Figure 3 This is a schematic diagram of the overall structure of the utility model in an exploded state from the second perspective.

[0022] Figure 4 This is a schematic diagram of the disassembly and assembly direction of the water tank of the utility model and the open state of the water injection port.

[0023] Figure 5 This is a schematic diagram of the structure of the water tank of the utility model in the assembled state.

[0024] Figure 6 This is a schematic diagram of the exploded state of the water tank of the utility model from the first perspective.

[0025] Figure 7 This is a schematic diagram of the exploded state of the water tank of the utility model from the second perspective.

[0026] Figure 8 This is a schematic diagram of the cross-section of the water tank of the utility model.

[0027] Figure 9 This is a schematic diagram of the internal structure of the air filter of the utility model.

[0028] In the figure, 1. housing; 2. water tank; 21. left housing; 22. right housing; 23. intake pipe; 24. outlet pipe; 25. water injection port; 26. turning frame; 27. cover; 28. guiding member; 29. heat conduction structure; 291. bottom plate; 292. side plate; 293. heat conduction plate; 294. card slot; 295. card block; 3. blower; 4. blowing pipe; 5. liquid level sensor; 6. air filter; 61. outer shell; 62. primary filter screen; 63. HEPA silver-loaded filter screen; 64. aldehyde-hunting factor filter screen; 65. amethyst aldehyde-removing filter screen; 66. photocatalyst filter screen; 7. heating plate; 8. cover plate; 9. humidifier. Detailed implementation manners

[0029] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0030] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] such as Figure 1 — Figure 9 the embodiments shown.

[0032] A ventilator, comprising a housing 1, the interior of the housing 1 having at least a first installation chamber and a second installation chamber, further comprising a blower 3 installed in the first installation chamber and a water tank 2 detachably installed in the second installation chamber. A liquid level sensor 5 is installed in the second installation chamber. When the water tank 2 is located in the second installation chamber, the liquid level sensor 5 is in close contact with the side wall of the water tank 2 and detects the water level in the water tank 2. A blow pipe 4 communicating with the interior of the water tank 2 is provided on the housing 1, and the other end of the blow pipe 4 extends to the outside of the housing 1. A heating plate 7 for heating the liquid in the water tank 2 is provided in the second installation chamber.

[0033] A humidifier 9 is provided at the air outlet end of the blow pipe 4.

[0034] Referring to Figures 1 to 3 as shown, first, the water tank 2 after being filled with water can be installed in the second installation chamber. At this time, the liquid level sensor 5 located in the second installation chamber detects the water level in the water tank 2. This application also includes a corresponding controller. The liquid level sensor 5 sends the detected data to the controller. When the liquid level sensor 5 detects that the water level in the water tank 2 is lower than the preset value, the controller can control the heating plate 7 to cut off the power. After the heating plate 7 cuts off the power, it will not heat, thereby preventing the occurrence of dry burning. Compared with the existing method of observing the water level using a width line, the control method of this ventilator is more intelligent. Correspondingly, scale lines corresponding to the water level can also be provided on the surface of the water tank 2. Whether to set them is not limited here and can be selected according to needs.

[0035] When the ventilator is in use, it can be controlled by a controller according to needs whether to heat the water in the water tank 2, and whether to humidify the air through the humidifier 9 according to needs. Specifically, first, the blower 3 blows external gas into the water tank 2. As the blower 3 continues to deliver air into the water tank 2, the air is blown out through the blow pipe 4. The blow pipe 4 can be connected to the corresponding breathing mask through a hose, an air pipe, etc., so as to be used by the user. The upper airway of the patient is opened and unobstructed by positive pressure gas, improving the sleep quality. If humidification treatment is required, the pneumatic humidifier 9 atomizes the water in the water tank 2, so as to be blown out together with the gas, thereby increasing the humidity of the air and reducing the dryness of the air. If air at a certain temperature is required, the heating plate 7 can be started to heat the water in the water tank 2. After the water in the water tank 2 is heated, the air from the blower 3 will pass through the water tank 2, and to a certain extent, the temperature of the blown air will also change due to the temperature change of the water in the water tank 2, improving the comfort of the user. And by atomizing the water at different temperatures in the water tank 2 through the humidifier 9, the temperature of the air can also be changed during the humidification process.

[0036] When the water tank 2 is located in the second installation chamber, the heating plate 7 is located below the water tank 2. The water tank 2 includes a left shell 21 and a right shell 22 that are detachably connected. The left shell 21 and the right shell 22 form a containing cavity for storing liquid. An air inlet pipe 23 communicating with the air outlet of the blower 3 and an air outlet pipe 24 communicating with the air inlet end of the blow pipe 4 are arranged on the left shell 21. A water injection port 25 is opened at the top of the right shell 22. A cover structure for opening or closing the water injection port 25 is further installed on the left shell 21.

[0037] The cover structure includes a flipping frame 26 rotatably installed on the left shell 21. A cover body 27 adapted to the water injection port 25 is integrally provided on the bottom surface of the end of the flipping frame 26 far from the rotation end.

[0038] Refer to Figures 2 to 7As shown, by rotating the flipping frame 26 to drive the cover body 27 to release the blockage of the water injection port 25, the interior of the accommodation cavity can be filled with water through the water injection port 25; after the water injection is completed, rotate the flipping frame 26 again to drive the cover body 27 to block the water injection port 25, and then install the entire water tank 2 into the second installation chamber to complete the water injection of the water tank 2. In this embodiment, the blower 3 conveys external gas into the accommodation cavity through the air inlet pipe 23 communicated with the outlet, and then conveys the gas into the blowing pipe 4 through the air outlet pipe 24 and discharges it. During this process, if the water in the accommodation cavity is heated, the temperature of the gas discharged from the blowing pipe 4 can be changed. Correspondingly, if the humidifier 9 uses the heated water for atomization humidification, the temperature of the gas discharged from the blowing pipe 4 can also be changed; in this embodiment, a corresponding temperature sensor can also be installed in the second installation chamber to detect the temperature of the water in the accommodation cavity to prevent the temperature from being too high and causing the temperature of the discharged gas to be too high, which may cause harm to the user.

[0039] A heat conduction structure 29 for transferring the heat from the heating plate 7 is detachably installed on the bottom surface of the left housing 21. The heat conduction structure 29 includes a bottom plate 291 located at the opening of the bottom surface of the left housing 21. A heat conduction plate 293 adapted to the opening of the bottom surface of the left housing 21 is provided on the bottom plate 291. A side plate 292 is integrally provided on the side surface of the bottom plate 291, and at least one card slot 294 is opened on the side surface of the side plate 292. A clamping block 295 adapted to the number and shape of the card slots 294 is also integrally provided on the left housing 21.

[0040] Refer to Figure 6 and Figure 7 As shown, first, the convex part on the side of the bottom plate 291 is buckled with the groove at the bottom of the left housing 21, so that the heat conduction plate 293 is combined with the opening of the bottom surface of the left housing 21. Then, the card slot 294 on the side plate 292 is buckled on the clamping block 295 to complete the installation and fixation. The heat from the heating plate 7 is transferred to the water in the accommodation cavity through the heat conduction plate 293; if the ventilator needs to be carried or not used for a long time, the entire water tank 2 can be removed from the second installation chamber, and then the heat conduction structure 29 is separated from the left housing 21. At this time, the water in the accommodation cavity is discharged from the opening at the bottom of the left housing 21 to complete the drainage of the water in the accommodation cavity. Next, the heat conduction structure 29 can be installed and reset, and the entire water tank 2 is installed into the second installation chamber again, so as to facilitate the handling of the entire ventilator.

[0041] A semi-closed flow guiding member 28 adapted to the air inlet pipe 23 is provided on the inner wall of the left housing 21. During use, the air outlet end of the air inlet pipe 23 is located in the flow guiding member 28; the cross section of the flow guiding member 28 is in a "U" shape.

[0042] Refer to Figures 5 to 8As shown, the "U" - shaped opening of the flow - guiding member 28 faces the side of the right housing 22, so that the gas from the intake pipe 23 will not directly act on the water in the accommodation cavity, and thus will not splash water.

[0043] An air filter element 6 is detachably installed on the side wall of the housing 1. The air filter element 6 includes a housing 61. Inside the housing 61, a primary filter screen 62, a HEPA silver - loaded filter screen 63, a hunting aldehyde factor filter screen 64, a purple crystal formaldehyde - removing filter screen 65, and a photocatalyst filter screen 66 are sequentially and evenly spaced from the intake end to the outlet end.

[0044] Refer to Figure 9 As shown, the primary filter screen 62 blocks hairs, catkins, dust, etc. in the air. Then, the HEPA silver - loaded filter screen 63 filters PM2.5, smoke, etc. in the air. The hunting aldehyde factor filter screen 64 filters formaldehyde and harmful gases. The purple crystal formaldehyde - removing filter screen 65 filters formaldehyde and harmful gases again. The photocatalyst filter screen 66 eliminates germs. In order to enable the photocatalyst filter screen 66 to be used normally, a corresponding light source can be set at the position of the photocatalyst filter screen 66. For example, an ultraviolet light can enable the photocatalyst filter screen 66 to use normal light. The specific light is not limited here.

[0045] In this embodiment, the primary filter screen 62 is located at the intake end, and the arrangement order between the HEPA silver - loaded filter screen 63, the hunting aldehyde factor filter screen 64, the purple crystal formaldehyde - removing filter screen 65, and the photocatalyst filter screen 66 can be arranged as needed. The arrangement order here is not limited.

[0046] A cover plate 8 with a central hollow is provided at the intake end of the air filter element 6. Refer to Figure 2 As shown, the central hollow of the cover plate 8 facilitates the entry of external gas into the air filter element 6.

[0047] The working process of the present utility model is as follows: When in use, a water tank 2 filled with water is installed in the second installation chamber of the housing 1. The water level in the water tank 2 is detected by a liquid - level sensor 5. The air filtered by the air filter element 6 from the outside is conveyed into the water tank 2 by a blower 3. As the blower 3 continues to convey air into the water tank 2, the air will be discharged through a blow - off pipe 4. The blow - off pipe 4 is connected to a corresponding face mask through a hose to provide air (oxygen) with positive pressure for the face mask. When it is necessary to change the temperature of the air discharged from the blow - off pipe 4, the heating plate 7 can be started to heat the water in the water tank 2, so that the temperature inside the water tank 2 rises, and then the temperature of the air passing through the water tank 2 will also increase, thus meeting the temperature requirement. When it is necessary to humidify the air discharged from the blow - off pipe 4, the water in the water tank 2 can be atomized by a humidifier 9, thereby increasing the humidity of the air discharged from the blow - off pipe 4 and meeting the user's requirement for air humidity.

[0048] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A ventilator, comprising a housing (1), characterized in that: Inside the casing (1), there are at least a first installation chamber and a second installation chamber. It further includes a blower (3) installed in the first installation chamber and a water tank (2) detachably installed in the second installation chamber. A liquid level sensor (5) is installed in the second installation chamber. When the water tank (2) is located in the second installation chamber, the liquid level sensor (5) is in close contact with the side wall of the water tank (2) and detects the water level in the water tank (2). A blowing pipe (4) communicating with the inside of the water tank (2) is provided on the casing (1), and the other end of the blowing pipe (4) extends to the outside of the casing (1). A heating plate (7) for heating the liquid in the water tank (2) is provided in the second installation chamber.

2. The ventilator according to claim 1, characterized in that: When the water tank (2) is located in the second installation chamber, the heating plate (7) is located below the water tank (2). The water tank (2) includes a left shell (21) and a right shell (22) which are detachably connected. The left shell (21) and the right shell (22) form a containing cavity for storing liquid. An air inlet pipe (23) communicating with the air outlet of the blower (3) and an air outlet pipe (24) communicating with the inlet end of the blowing pipe (4) are provided on the left shell (21). A water injection port (25) is opened at the top of the right shell (22). A cover structure for opening or closing the water injection port (25) is further installed on the left shell (21).

3. The ventilator according to claim 2, wherein: The cover structure includes a flipping frame (26) rotatably installed on the left shell (21). A cover body (27) adapted to the water injection port (25) is integrally provided on the bottom surface of the end of the flipping frame (26) far from the rotating end.

4. The ventilator according to claim 2, characterized in that: A heat conduction structure (29) for transferring the heat from the heating plate (7) is detachably installed on the bottom surface of the left shell (21). The heat conduction structure (29) includes a bottom plate (291) located at the opening of the bottom surface of the left shell (21). A heat conduction plate (293) adapted to the opening of the bottom surface of the left shell (21) is provided on the bottom plate (291). A side plate (292) is integrally provided on the side surface of the bottom plate (291). At least one clamping groove (294) is opened on the side surface of the side plate (292). A clamping block (295) adapted to the number and shape of the clamping grooves (294) is also integrally provided on the left shell (21).

5. The ventilator according to claim 2, wherein: A semi-closed flow guiding member (28) adapted to the air inlet pipe (23) is provided on the inner wall of the left shell (21). During use, the air outlet end of the air inlet pipe (23) is located in the flow guiding member (28).

6. The ventilator according to claim 5, wherein: The cross section of the flow guiding member (28) is in a "U" shape.

7. A ventilator according to claim 1, characterized in that: An air filter element (6) is detachably installed on the side wall of the casing (1). The air filter element (6) includes a housing (61). Inside the housing (61), a primary filter screen (62), a HEPA silver-loaded filter screen (63), a hunting aldehyde factor filter screen (64), a purple crystal aldehyde removal filter screen (65), and a photocatalyst filter screen (66) are sequentially and evenly spaced from the air inlet end to the air outlet end.

8. A ventilator according to claim 7, characterized in that: A cover plate (8) with a central hollow is provided at the air inlet end of the air filter element (6).

9. A ventilator according to claim 1, wherein: A humidifier (9) is provided at the air outlet end of the blowing pipe (4).

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