Air intake assembly for a ventilation therapy device and ventilation therapy device

Abstract

This utility model relates to the field of ventilation therapy, and discloses an air intake assembly for a ventilation therapy device and the ventilation therapy device itself. The air intake assembly is detachably connected to the air intake side of the ventilation therapy device. The air intake assembly contains an air intake component with at least one air intake channel, which is configured as a curved path to extend the airflow path. The air intake assembly provided by this utility model, on the one hand, allows the air intake assembly with the air intake channel to be removed from the ventilation therapy device for easy cleaning and replacement; on the other hand, the curved path of the air intake channel extends the gas flow path, and the airflow can be refracted and reflected during contact and collision with the inner wall surface of the curved air intake channel, thereby achieving the purpose of stabilizing airflow and reducing noise.

Description

Technical Field

[0001] This utility model relates to the field of ventilation therapy, and more specifically to an air intake component for a ventilation therapy device and a ventilation therapy device including the air intake component. Background Technology

[0002] In modern clinical medicine, ventilation therapy equipment (such as ventilators) is widely used as an effective means to replace spontaneous ventilation in patients with respiratory failure, anesthetic respiratory management during major surgery, respiratory support therapy, and emergency resuscitation.

[0003] To improve user experience, existing ventilators typically employ various airway configurations to ensure stable airflow. However, most airways on the market are non-removable, making timely cleaning impossible. A contaminated airway can cause secondary harm to patients, posing a safety risk to those using ventilators long-term. Utility Model Content

[0004] The purpose of this invention is to overcome the problem that the airway in existing ventilation therapy equipment cannot be cleaned or replaced.

[0005] To achieve the above objectives, the present invention provides an air intake assembly for a ventilation therapy device. The air intake assembly is detachably connected to the air intake side of the ventilation therapy device. The air intake assembly has an air intake component, which has at least one air intake channel. The air intake channel is configured as a curved path to extend the airflow path.

[0006] In some embodiments, the air intake assembly further includes a mounting component connected to the air intake side of the ventilation therapy device, and the air intake component is connected to the mounting component.

[0007] In some embodiments, the mounting component is detachably connected to the ventilation therapy device.

[0008] In some embodiments, the air intake component is detachably connected to the mounting component.

[0009] In some embodiments, the mounting component includes a sleeve, and the air intake component includes a conduit inserted within the sleeve, the interior of the conduit defining the air intake passage.

[0010] In some embodiments, the air inlet of the air inlet channel is connected to the air inlet of the main unit of the ventilation therapy device, and the air outlet of the air inlet channel is connected to the air inlet of the fan in the ventilation therapy device.

[0011] In some embodiments, the air intake component includes a conduit, the interior of which defines a plurality of air intake passages.

[0012] In some embodiments, the axial ends of the pipeline are respectively formed into an air inlet end face and an air outlet end face, the air inlet of the air inlet channel is located on the air inlet end face, and the air outlet of the air inlet channel is located on the air outlet end face.

[0013] In some embodiments, the intake assembly further includes a pull ring for pulling the conduit out of the sleeve.

[0014] In some embodiments, the air inlet end of the pipeline is provided with a mounting hole for installing the pull ring, wherein: the outer end face of the pull ring does not protrude beyond the corresponding end faces of the sleeve and the pipeline, and the pull ring is provided with an opening to form a force-applying part; or

[0015] The outer end face of the pull ring protrudes from the corresponding end face of the sleeve and the pipeline, and the outer edge of the pull ring forms a force-applying part.

[0016] In some embodiments, the air intake component includes a plurality of the pipes, each of the pipes defining an air intake passage.

[0017] In some embodiments, the air inlet end of each of the pipes is provided with an edge protruding from the corresponding end face of the sleeve and the pipe, the edge being formed as a force-applying portion for pulling the pipe out of the sleeve.

[0018] In some embodiments, an annular sealing flange is formed protruding on the outer peripheral surface of the pipeline, and the sealing flange seals between the outer peripheral surface of the pipeline and the inner peripheral surface of the sleeve.

[0019] In some embodiments, the sleeve and the pipeline are detachably connected by a connecting structure.

[0020] In some embodiments, the mounting component further includes an end plate disposed at the air outlet end of the sleeve, the end plate having an air vent communicating with the air inlet channel, the inner peripheral surface of the air vent forming an abutment surface for the air outlet end of the pipeline to abut against, and the connection structure being disposed between the abutment surface and the air outlet end of the pipeline.

[0021] In some embodiments, the connection structure includes a magnetic ring and a plurality of magnetic points spaced circumferentially along the magnetic ring, the magnetic ring being disposed on one of the abutment surface and the air outlet end of the pipeline, and the plurality of magnetic points being disposed on the other of the abutment surface and the air outlet end of the pipeline.

[0022] In some embodiments, the air intake assembly further includes a sealing ring, and the outer peripheral surface of the sleeve is provided with a mounting groove for mounting the sealing ring.

[0023] Another aspect of this utility model provides a ventilation therapy device, including a main unit, wherein a fan and an air intake component for ventilation therapy as described above are provided inside the main unit, and the air intake component is located downstream of the air inlet of the main unit and upstream of the fan.

[0024] The air intake component provided by the above solution of this utility model has the following advantages: on the one hand, the air intake component with the air intake channel can be removed from the ventilation therapy device, making it easy to clean and replace; on the other hand, the curved path of the air intake channel can extend the flow path of the gas, and the airflow can be refracted and reflected during the contact and collision with the inner wall surface of the curved air intake channel, thereby achieving the purpose of stabilizing the flow and reducing noise.

[0025] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0026] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0027] Figure 1 This is a perspective view of one embodiment of the air intake component in this utility model;

[0028] Figure 2 yes Figure 1 Left view of the center air intake assembly;

[0029] Figure 3 yes Figure 1 Right view of the center air intake assembly;

[0030] Figure 4 yes Figure 1 Front view of the center air intake assembly;

[0031] Figure 5 yes Figure 1 Exploded view of the center air intake assembly;

[0032] Figure 6 yes Figure 1 A cross-sectional view of the middle air intake assembly, wherein the air intake component is not installed within the mounting component;

[0033] Figure 7 yes Figure 1 A three-dimensional view of the components being installed.

[0034] Figure 8 yes Figure 1Another perspective view of the components being installed in the middle;

[0035] Figure 9 yes Figure 1 3D view of the central air intake component;

[0036] Figure 10 yes Figure 1 Another perspective view of the central air intake component;

[0037] Figure 11 yes Figure 10 Exploded view of the central air intake component;

[0038] Figure 12 yes Figure 11 Cross-sectional view of the central air intake component;

[0039] Figure 13 This is a cross-sectional view of the main unit of the ventilation therapy device in this utility model;

[0040] Figure 14 yes Figure 13 A schematic diagram showing the intake components being removed from the mounting components.

[0041] Explanation of reference numerals in the attached figures

[0042] 10-Inlet assembly, 11-Mounting component, 111-Sleeve, 112-End plate, 113-Ventilation port, 114-Mounting plate, 115-Mounting groove, 116-First detection channel, 116a-First detection gas inlet, 117-Second detection channel, 117a-Second detection gas inlet, 118-Detection port, 12-Inlet component, 121-Inlet channel, 122-Pipeline, 123-Inlet, 124-Outlet, 125-Inlet end face, 126-Outlet end face, 127-Mounting hole, 128-Sealing flange, 129-Annular groove, 13-Pull ring, 131-Opening, 14-Magnetic ring, 15-Magnetic point, 16-Sealing ring, 20-Main unit, 21-Fan, 22-Main unit inlet, 23-Main unit outlet, 24-Flow detection component. Detailed Implementation

[0043] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this utility model by way of example, but should not be used to limit the scope of this utility model. This utility model can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0044] These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0045] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0046] Furthermore, the terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0047] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0048] All terms used in this invention have the same meaning as understood by one of ordinary skill in the art to which this invention pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0049] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0050] This utility model provides an air intake component for a ventilation therapy device, see [link to related information] Figures 1-6 The air intake assembly 10 is detachably installed on the air intake side of the ventilation therapy device. The air intake assembly 10 has an air intake component 12, which has at least one air intake channel 121. The air intake channel 121 is configured as a curved path to extend the airflow path.

[0051] The air intake assembly 10 provided by the above-described solution of this utility model has two advantages. First, the air intake assembly 10 with the air intake channel 121 can be removed from the ventilation therapy device, making it easy to clean and replace, thereby improving the user's breathing safety. Second, the curved path of the air intake channel 121 can extend the gas flow path. The airflow can be refracted and reflected during the contact and collision with the inner wall surface of the curved air intake channel 121. Especially in portable or compact ventilation therapy devices, since the length of the air intake component 12 is limited, the curved trajectory of the air intake channel 121 can better achieve the purpose of stabilizing flow and reducing noise under the spatial constraints in the horizontal direction.

[0052] As described above, the air intake assembly 10 includes a mounting component 11 and an air intake component 12. The mounting component 11 is used to install the air intake assembly 10 on the air intake side of the ventilation therapy device, and the air intake component 12 is connected to the mounting component 11.

[0053] In the above, to achieve the detachable connection of the air intake assembly 10 to the ventilation therapy device, the air intake assembly 10 can be completely detached from the ventilation therapy device, or some parts of the air intake assembly 10 can be detached from the ventilation therapy device.

[0054] Specifically, the mounting component 11 is detachably connected to the ventilation therapy device, and the air intake component 12 is detachably connected to the mounting component 11. In this case, the air intake assembly 10 can be removed from the ventilation therapy device as a whole, while the air intake component 12 can be removed from the mounting component 11.

[0055] The mounting component 11 can also be detachably connected to the ventilation therapy device, while the air intake component 12 is fixedly connected to the mounting component 11.

[0056] Alternatively, the mounting component 11 can be fixed to the ventilation therapy device, while the air intake component 12 is detachably connected to the mounting component 11. In this case, only the air intake component 12 can be removed from the ventilation therapy device.

[0057] In the above description, the air inlet 123 of the air inlet channel 121 (i.e., one end port of the air inlet channel 121) is used to connect with the air inlet 22 of the main unit of the ventilation therapy device, and the air outlet 124 of the air inlet channel 121 (i.e., the other end port of the air inlet channel 121) is used to connect with the air inlet of the fan 21 in the ventilation therapy device. That is to say, the air inlet channel 121 is located between the air inlet 22 of the main unit and the air inlet of the fan 21, and is connected to both of them respectively (see Figure 13 The air intake component 12 can be removed and installed from the main unit's air intake port 22.

[0058] In this utility model, see Figure 9 and Figure 10 The air inlet 123 and air outlet 124 of the air intake channel 121 are preferably circular. In other embodiments, the air inlet 123 and air outlet 124 can also be elliptical, polygonal or other shapes.

[0059] In this invention, preferably, the intake channel 121 is constructed as a spiral extending around the central axis of the intake component 12 (specifically, around the pipe 122, which will be described below). Specifically, the intake channel 121 can be a regular spiral shape (e.g., the same pitch and the same spiral radius), such as a cylindrical spiral; the intake channel 121 can also be an irregular spiral shape (e.g., different pitches and / or different spiral radii), such as a conical spiral. Preferably, the intake channel 121 is a cylindrical spiral, and the spiral angle of the intake channel 121 is preferably greater than or equal to 45°, for example, 45°, 90°, or 180°.

[0060] In other embodiments, the shape of the air intake channel 121 can also be configured as an S-shaped, palindrome-shaped, or other curved structure, or even an irregular curved structure. In this invention, the purpose of configuring the shape of the air intake channel 121 as curved is to extend the flow path of the airflow in the air intake channel 121. In the curved flow path, the airflow can be refracted and reflected during contact and collision with the inner wall surface of the curved air intake channel 121, thereby achieving the purpose of stabilizing the flow and reducing noise.

[0061] When installing the aforementioned air intake assembly 10 into the ventilation therapy device, see Figure 13The gas entering from the main air inlet 22 of the ventilation therapy device will enter the air intake channel 121 through the air inlet 123. It will then flow smoothly and steadily along a relatively long path through the air intake channel 121, and finally flow out through the air outlet 124 of the air intake channel 121 before entering the fan 21. In addition, the noise generated by the operation of the fan 21 will enter the air intake channel 121 in the opposite direction and collide with the inner wall of the air intake channel 121. At this time, the refracted and reflected noise generated by the fan will be absorbed by the inner wall, thereby isolating the noise and preventing the noise from being output to the outside through the ventilation components.

[0062] The air intake assembly provided by this utility model guides and extends the airflow path by setting a curved air intake channel 121 within the air intake component. This achieves the effect of extending the airflow path through three-dimensional folding within a small space, and also blocks fan noise transmission, thus achieving stable airflow and noise reduction. The air intake assembly of this utility model has a simple structure and high stability, optimizing the impact of fan noise on the overall noise level of the device, reducing product costs, and improving the user experience. This air intake assembly is particularly suitable for ventilation and therapy devices, especially those with a small main unit size.

[0063] In this invention, the cross-sectional area of ​​the air intake channel 121 can be set to remain constant or vary. Preferably, the cross-sectional area of ​​the air intake channel 121 is set to gradually decrease from the air inlet 123 to the air outlet 124. This funnel-shaped air passage structure can facilitate the absorption of fan noise by the inner wall of the air passage, improving the noise reduction effect. In addition, it is also beneficial for the air intake component to be demolded during the manufacturing process.

[0064] In this invention, in order to further ensure the smooth flow of air through the intake channel, the inner wall surface of the intake component used to define the intake channel 121 can be made smooth.

[0065] In this invention, when the air intake component has multiple air intake channels 121, the rotation direction or angle of the multiple air intake channels 121 can be the same or different. To ensure that the air intake component has a small volume and that the airflow between the air intake channels 121 does not cause disturbance or interference, it is preferable that all multiple air intake channels 121 have the same rotation direction and angle, for example, a regular, uniform spiral structure. See [link to related document]. Figure 9 and Figure 10 Multiple air intake channels 121 can be arranged at intervals along the circumferential direction. To ensure the uniformity of the air intake channel cutting, the spacing between the air inlets 123 of adjacent air intake channels 121 is equal, and the spacing between the air outlets 124 of adjacent air intake channels 121 is equal. This also avoids turbulence. Of course, in other embodiments, the multiple air intake channels 121 can also be arranged in layers radially outward from the center of the air intake component.

[0066] The purpose of providing multiple air intake channels 121 in the air intake component 12 is to allow the airflow at the intake end of the air intake component 12 to be dispersed into the air intake component 12 through multiple air intake channels 121. Airflow rectification and noise reduction processes occur within these multiple air intake channels 121, resulting in superior flow stabilization and noise reduction effects. Therefore, in the relatively confined space of a ventilation therapy device, an air intake component with multiple air intake channels offers better performance than one with a single air intake channel. Furthermore, while achieving the same flow stabilization and noise reduction objectives, the axial length of an air intake component with multiple air intake channels can be shorter than that of a single air intake channel, thus further reducing the overall size of the device while achieving the same effect, demonstrating significant application value.

[0067] In this invention, the mounting component 11 and the air intake component 12 can have any suitable structure. Preferably, the mounting component 11 includes a sleeve 111, and the air intake component 12 includes a pipe 122 inserted into the sleeve 111, the interior of the pipe 122 defining an air intake passage 121.

[0068] In some embodiments, the air intake component 12 may include a conduit 122, the interior of which defines a plurality of air intake passages 121. In this embodiment, a single passage is formed inside the sleeve 111 for mounting the conduit 122.

[0069] In the above embodiments, see Figures 9-12 The axial ends of the pipe 122 form an inlet end face 125 and an outlet end face 126, respectively. The inlet 123 of the inlet channel 121 is located on the inlet end face 125, and the outlet 124 of the inlet channel 121 is located on the outlet end face 126. Preferably, as follows... Figures 9-12 As shown, the intake end face 125 is formed as a spherical surface concave towards the middle of the duct 122 (i.e., towards the interior of the duct), and the outlet end face 126 is formed as a spherical surface concave towards the middle of the vent duct 122 (i.e., towards the interior of the duct). This creates notches at the intake end face 125 and the outlet end face 126, which can also be called a spherical-notch structure. The intake notch formed at the intake end face 125 can smoothly integrate the airflow before it enters the intake channel, allowing it to enter the intake channel smoothly. The airflow output from the intake channel is further integrated through the outlet notch, thus achieving better flow stability.

[0070] In the above embodiments, in order to facilitate the disassembly and assembly of the pipe 122, the air intake assembly 10 may also include a pull ring 13 for pulling the pipe 122 out of the sleeve 111.

[0071] The pull ring 13 can be installed on the pipe 122 in any manner. For example... Figure 12As shown, a mounting hole 127 for installing the pull ring 13 can be provided at the air inlet end of the pipe 122. Specifically, the mounting hole 127 can be located at the center of the air inlet end face 125.

[0072] Furthermore, to facilitate gripping the pull ring 13 for applying force, in some embodiments, the outer end face of the pull ring 13 may not protrude beyond the corresponding end faces of the sleeve 111 and the pipe 122, and an opening 131 may be provided on the pull ring 13 to form a force-applying portion (see [reference]). Figure 9 In use, the user can insert their finger into the opening 131 to apply force. In other embodiments, the outer end face of the pull ring 13 can protrude beyond the corresponding end faces of the sleeve 111 and the pipe 122, and the outer edge of the pull ring 13 forms a force-applying part.

[0073] In other embodiments, the air intake component 12 may also include multiple pipes 122, each pipe 122 defining an air intake passage 121 inside. In this embodiment, each pipe 122 can be individually removed from the mounting component for cleaning. In this embodiment, the sleeve 111 may have a single channel inside for installing multiple pipes 122; or the sleeve 111 may have multiple channels inside for installing multiple pipes 122 one-to-one.

[0074] In the above embodiment, in order to facilitate the disassembly and assembly of the pipe 122, an edge protruding from the corresponding end face of the sleeve 111 and the pipe 122 can be provided at the air inlet end of each pipe 122. This edge is formed as a force-applying part for pulling the pipe 122 out of the sleeve 111.

[0075] In this utility model, such as Figure 9 and Figure 10 As shown, in order to improve the sealing performance between the pipe 122 and the sleeve 111, an annular sealing flange 128 can be formed protruding on the outer circumferential surface of the pipe 122. The sealing flange 128 seals between the outer circumferential surface of the pipe 122 and the inner circumferential surface of the sleeve 111. There can be multiple sealing flanges 128, and the multiple sealing flanges 128 can be arranged at intervals along the axial direction of the pipe 122.

[0076] In this invention, to improve the reliability of the assembly of the sleeve 111 and the pipe 122, the sleeve 111 and the pipe 122 can also be detachably connected by a connecting structure. The connecting structure can provide secondary fixation after the pipe 122 is inserted into the sleeve 111, while preventing the pipe 122 from accidentally coming out of the sleeve 111.

[0077] In the above description, the connection structure can take any suitable form, such as a snap-fit ​​structure. The connection structure can also be located at any suitable position between the sleeve 111 and the pipe 122. Specifically, in some embodiments, see [link to relevant documentation]. Figures 7-8The mounting component 11 may further include an end plate 112 disposed at the outlet end of the sleeve 111. The end plate 112 has an air vent 113 communicating with the air inlet channel 121. The inner circumferential surface of the air vent 113 forms an abutment surface for the outlet end of the pipe 122 to abut against. The abutment surface can axially limit the outlet end of the pipe 122 (i.e., restrict the pipe 122 from continuing to move in the airflow direction). In this embodiment, the connecting structure can be disposed between the abutment surface and the outlet end of the pipe 122 to axially limit the inlet end of the pipe 122 (i.e., restrict the pipe 122 from continuing to move in the direction opposite to the airflow direction).

[0078] Specifically, the connection structure may include a magnetic ring 14 and a plurality of magnetic points 15 spaced circumferentially along the magnetic ring 14. The magnetic ring 14 is disposed on one of the contact surface and the air outlet end of the pipe 122, and the plurality of magnetic points 15 are disposed on the other of the contact surface and the air outlet end of the pipe 122. For example Figure 6 As shown, multiple magnetic dots 15 are fixedly arranged (e.g., by heat fusion) around the vent 113 on the contact surface at intervals, and a magnetic ring 14 is disposed at the outlet end of the pipe 122. Further, as... Figures 10-12 As shown, the outlet end of the pipeline 122 may be provided with an annular groove 129, and the magnetic ring 14 is fixedly embedded (e.g., by heat fusion) in the annular groove 129.

[0079] In this invention, to improve the sealing performance of the air intake assembly 10 when installed in a ventilation therapy device, the air intake assembly 10 may further include a sealing ring 16, and a mounting groove 115 for mounting the sealing ring 16 may be provided on the outer peripheral surface of the sleeve 111. Specifically, as shown... Figures 1-8 As shown, two mounting plates 114 are provided at intervals on the outer peripheral surface of the sleeve 111 near the air inlet end, and a mounting groove 115 is formed between the mounting plates 114. The sealing ring 16 is embedded in the mounting groove 115.

[0080] In this invention, the air intake assembly 10 may also include a detection channel for detecting the pressure difference between the two ends of the pipeline 122.

[0081] Specifically, see Figures 1-8The detection channel can be located on the radial side of the sleeve 111 and extend along the axial direction of the sleeve 111. A first detection gas inlet 116a and a second detection gas inlet 117a are respectively provided at both ends of the sleeve 111. The detection channel includes a first detection channel 116 communicating with the first detection gas inlet 116a and a second detection channel 117 communicating with the second detection gas inlet 117a. Detection ports 118 are respectively provided on the first detection channel 116 and the second detection channel 117. It should be noted that the first detection channel 116 and the second detection channel 117 are not connected. The first detection channel 116 is connected to the airflow at the inlet end face 125, and the second detection channel 117 is connected to the airflow at the outlet end face 126. By measuring the gas pressure in the first detection channel 116 and the second detection channel 117 from the two detection ports 118, the pressure difference between the inlet and outlet ends of the intake component can be obtained.

[0082] In this invention, the pipe 122 can be made of hard rubber material or soft rubber material.

[0083] In another aspect, this utility model provides a ventilation therapy device, including a main unit 20. A fan 21 and an air intake assembly 10 are disposed within the main unit 20. The air intake assembly 10 is located downstream of the main unit's air inlet 22 and upstream of the fan 21, meaning that the air intake assembly 10 is positioned within the main unit between the main unit's air inlet 22 and the fan. It should be noted that the main unit's air inlet 22 referred to in this utility model is the air inlet of the ventilation therapy device, through which the ventilation therapy device communicates with the external airflow.

[0084] See Figures 13-14 The intake assembly 10 can be snapped into the main unit via the end plate 112.

[0085] See Figures 13-14 No noise reduction box needs to be installed inside the main unit 20. That is, the fan 21 is installed inside the main unit 20 without a noise reduction box, thus greatly reducing the size of the main unit. Simultaneously, the air intake component of this invention achieves noise reduction and improved airflow stability even with a smaller main unit size, thus possessing good application value and providing a better way to meet the needs of miniaturization and portability of ventilation therapy equipment. The main unit 20 has a main unit air inlet 22 and a main unit air outlet 23. Gas enters the main unit through the main unit air inlet 22, then flows sequentially through the air intake component 10 and the fan 21 before being discharged from the main unit air outlet 23. A flow detection component 24 can also be installed inside the main unit 20. This flow detection component 24 is located at two detection ports 118 of the ventilation component to detect the flow rate, thereby obtaining the pressure difference across the air intake component.

[0086] Reference Figures 13-14When the air intake channel needs to be replaced or cleaned, the user can pull the pipe 122 out of the sleeve 111 using the pull ring 13, and then insert it back into the sleeve 111 after cleaning. Finally, it can be locked in place using magnetic attraction. In this way, pipes 122 with different air intake cross-sections and spiral degrees can be provided to meet the needs of different users (the air intake cross-section of the pipe can be appropriately reduced when the user has high noise requirements, and the air intake cross-section of the pipe can be appropriately increased when the user has high flow requirements).

[0087] The ventilation therapy equipment may be a ventilator or an oxygen therapy device, etc.

[0088] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0089] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the different embodiments can be combined in any way.

Claims

1. An air intake assembly for a ventilation therapy device, characterized in that, The air intake assembly (10) is detachably connected to the air intake side of the ventilation therapy device. The air intake assembly (10) is provided with an air intake component (12). The air intake component (12) has at least one air intake channel (121), which is configured as a curved path to extend the airflow path.

2. The air intake assembly for a ventilation therapy device according to claim 1, characterized in that, The air intake assembly (10) further includes a mounting component (11) connected to the air intake side of the ventilation therapy device, and the air intake component (12) connected to the mounting component (11).

3. The air intake assembly for a ventilation therapy device according to claim 2, characterized in that, The mounting component (11) is detachably connected to the ventilation therapy device; and / or The air intake component (12) is detachably connected to the mounting component (11).

4. The air intake assembly for a ventilation therapy device according to claim 3, characterized in that, The mounting component (11) includes a sleeve (111), and the air intake component (12) includes a conduit (122) inserted into the sleeve (111), the interior of the conduit (122) defining the air intake passage (121); and / or The air inlet (123) of the air inlet channel (121) is connected to the air inlet (22) of the main unit of the ventilation therapy device, and the air outlet (124) of the air inlet channel (121) is connected to the air inlet of the fan (21) in the ventilation therapy device.

5. The air intake assembly for a ventilation therapy device according to claim 4, characterized in that, The air intake component (12) includes a conduit (122) and the interior of the conduit (122) defines a plurality of air intake passages (121).

6. The air intake assembly for a ventilation therapy device according to claim 5, characterized in that, The axial ends of the pipeline (122) are respectively formed with an air inlet end face (125) and an air outlet end face (126). The air inlet (123) of the air inlet channel (121) is located on the air inlet end face (125), and the air outlet (124) of the air inlet channel (121) is located on the air outlet end face (126); and / or The intake assembly (10) also includes a pull ring (13) for pulling the pipe (122) out of the sleeve (111).

7. The air intake assembly for a ventilation therapy device according to claim 6, characterized in that, The air inlet end of the pipeline (122) is provided with a mounting hole (127) for installing the pull ring (13), wherein: The outer end face of the pull ring (13) does not protrude beyond the corresponding end faces of the sleeve (111) and the pipeline (122), and the pull ring (13) is provided with an opening (131) to form a force-applying part; or The outer end face of the pull ring (13) protrudes from the corresponding end faces of the sleeve (111) and the pipeline (122), and the outer edge of the pull ring (13) forms a force-applying part.

8. The air intake assembly for a ventilation therapy device according to claim 4, characterized in that, The air intake component (12) includes a plurality of the pipes (122), each of the pipes (122) defining an air intake passage (121).

9. The air intake assembly for a ventilation therapy device according to claim 8, characterized in that, Each of the pipes (122) has an air inlet end with an edge protruding from the corresponding end face of the sleeve (111) and the pipe (122), the edge being formed as a force-applying part for pulling the pipe (122) out of the sleeve (111).

10. The air intake assembly for a ventilation therapy device according to claim 4, characterized in that, A ring-shaped sealing flange (128) is formed protruding on the outer peripheral surface of the pipe (122), and the sealing flange (128) seals between the outer peripheral surface of the pipe (122) and the inner peripheral surface of the sleeve (111); and / or The sleeve (111) and the pipeline (122) are detachably connected by a connecting structure.

11. The air intake assembly for a ventilation therapy device according to claim 10, characterized in that, The mounting component (11) further includes an end plate (112) disposed at the air outlet end of the sleeve (111). The end plate (112) is provided with an air inlet (113) communicating with the air inlet channel (121). The inner peripheral surface of the air inlet (113) forms an abutment surface for the air outlet end of the pipeline (122) to abut. The connection structure is disposed between the abutment surface and the air outlet end of the pipeline (122).

12. The air intake assembly for a ventilation therapy device according to claim 11, characterized in that, The connection structure includes a magnetic ring (14) and a plurality of magnetic points (15) spaced circumferentially along the magnetic ring (14). The magnetic ring (14) is disposed on one of the contact surface and the air outlet end of the pipeline (122), and the plurality of magnetic points (15) are disposed on the other of the contact surface and the air outlet end of the pipeline (122).

13. The air intake assembly for a ventilation therapy device according to any one of claims 4-12, characterized in that, The air intake assembly (10) also includes a sealing ring (16), and the outer peripheral surface of the sleeve (111) is provided with an installation groove (115) for installing the sealing ring (16).

14. A ventilation therapy device, characterized in that, Includes a main unit (20), wherein a fan (21) and an air intake assembly for a ventilation therapy device according to any one of claims 1-13 are provided in the main unit (20), and the air intake assembly (10) is disposed downstream of the air intake (22) of the main unit and upstream of the fan (21).

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