Air treatment equipment

Abstract

The utility model relates to air treatment equipment. The air treatment equipment comprises a main body, a driving assembly, a transmission assembly and a cleaning assembly. The main body is provided with an air inlet and a filter screen communicated with the air inlet, and the driving assembly is arranged on the main body. The transmission assembly is arranged on the main body and is connected with the driving assembly; the cleaning assembly is in threaded transmission with the transmission assembly and can be driven by the transmission assembly to move relative to the filter screen.

Description

[0001] This application claims priority to Chinese Patent Application No. 202422851138.4, filed with the Chinese Patent Office on November 21, 2024, entitled "Air Purifier", the entire contents of which are incorporated herein by reference.

[0002] This application claims priority to Chinese Patent Application No. 202422858968.X, filed on November 21, 2024, entitled "Air Purifier", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of air purification technology, and in particular to an air handling device. Background Technology

[0004] With the acceleration of industrialization and the continuous advancement of urbanization, air pollution has become an increasingly serious problem, and the decline in air quality has become a global public health concern. Air handling units, as important devices for improving indoor air quality, have been widely used. However, during use, the filters of air handling units easily accumulate large amounts of dirt, leading to blockages and consequently affecting the overall purification efficiency of the equipment.

[0005] The information disclosed above in the background art of this application is only used to understand the background of the concept of this application, and may contain information that does not constitute prior art. Utility Model Content

[0006] Therefore, it is necessary to provide an air handling device to address the above problems.

[0007] This application provides an air handling device, comprising:

[0008] The main body is equipped with an air inlet and a filter screen connected to the air inlet;

[0009] The driving component is located in the main body;

[0010] A transmission assembly is located in the main body and connected to the drive assembly.

[0011] The cleaning component is threadedly driven by the transmission component and can move relative to the filter screen under the drive of the transmission component.

[0012] The aforementioned air handling equipment offers at least the following beneficial effects: The drive and transmission components of the air handling equipment work closely together to provide power. The threaded transmission design between the cleaning component and the transmission component converts rotational motion into linear motion. Driving the cleaning component via threaded transmission provides higher precision, enabling the cleaning component to maintain a stable speed and direction during transmission, reducing the possibility of slippage or deviation. The precision of the threaded transmission allows the cleaning component to move in minute steps, achieving a more comprehensive and uniform cleaning of the filter. This allows the cleaning component to move smoothly and precisely along the filter surface under the drive of the transmission component. This design not only improves the stability and reliability of the cleaning process but also effectively reduces the problems of uneven cleaning and filter damage that may occur during manual cleaning. Through an automated cleaning mechanism, the user's maintenance needs are reduced, improving ease of use and user experience. It ensures the filter maintains good ventilation at all times, reducing the possibility of clogging due to dust and particulate matter accumulation, thereby contributing to improved air handling equipment purification efficiency.

[0013] In some embodiments, the transmission assembly includes a transmission rod fixed to the main body and a worm gear and a nut sleeve sequentially sleeved on the transmission rod. The outer circumferential surface of the worm gear is threadedly connected to the inner circumferential surface of the nut sleeve. The worm gear can rotate within the nut sleeve under the drive of the transmission rod, thereby driving the cleaning assembly to move relative to the filter screen. The transmission rod is fixed to the main body and provides rotational power through a drive assembly. When the transmission rod rotates, it drives the worm gear sleeved on it to rotate synchronously. The worm gear and the nut sleeve are threadedly connected, a design that allows the rotation of the worm gear to be converted into sliding motion along the axial direction of the transmission rod. When the rotation of the worm gear within the nut sleeve is converted into linear sliding along the axial direction of the transmission rod, it also synchronously drives the cleaning assembly to perform smooth and precise movement on the surface of the filter screen, thereby achieving efficient cleaning of the filter screen.

[0014] In some embodiments, the transmission assembly further includes a linkage. A limiting groove extending axially along the transmission rod is provided on the nut sleeve. One end of the linkage is connected to the cleaning component, and the other end extends into the nut sleeve through the limiting groove. The limiting groove on the nut sleeve provides a channel for the connection between the linkage and the worm gear inside the nut sleeve. One end of the linkage extends into the nut sleeve through the limiting groove and engages with both ends of the worm gear, while the other end is firmly connected to the cleaning component. When the rotation of the worm gear within the nut sleeve is converted into linear sliding along the axial direction of the transmission rod, it synchronously drives the linkage and its connected cleaning component.

[0015] In some embodiments, the drive assembly is connected to the transmission rod and is used to drive the transmission rod to rotate. The transmission rod can drive the worm to rotate within the nut sleeve. When the worm rotates within the nut sleeve, it can slide along the axial direction of the transmission rod and drive the linkage and the cleaning assembly connected to the linkage to clean the filter screen.

[0016] In some embodiments, the transmission assembly further includes a flexible member disposed on the nut sleeve. The flexible member at least partially covers the limiting groove. The flexible member elastically abuts against the linkage member, and the linkage member can compress the flexible member to produce elastic deformation when sliding along the limiting groove. The flexible member elastically abuts against the linkage member, and when the linkage member slides along the limiting groove, it can compress the flexible member to produce elastic deformation, meaning the flexible member does not obstruct the sliding of the linkage member within the limiting groove. Simultaneously, the flexible member covering the limiting groove effectively prevents external contaminants from entering the nut sleeve, thereby maintaining a clean environment between the nut sleeve and the worm gear, improving the smoothness of the transmission process, and providing additional cushioning and shock absorption effects, thus improving the stability and durability of the system.

[0017] In some embodiments, the worm gear is hollow and forms a limiting hole. The worm gear is sleeved on the transmission rod through the limiting hole, and the worm gear can slide along the axial direction of the transmission rod. The limiting hole is non-circular. The worm gear is designed as a hollow structure with a limiting hole, and is sleeved on the transmission rod through this limiting hole. The limiting hole allows the worm gear to slide in the axial direction of the transmission rod, and at the same time improves its stability in the circumferential direction of the transmission rod, so that the worm gear can rotate with the transmission rod. This synchronous rotation allows the rotational motion of the worm gear to be effectively converted into linear sliding along the axial direction of the transmission rod, thereby driving the linkage and cleaning components to perform a smooth and precise cleaning motion on the filter screen.

[0018] In some embodiments, the transmission assembly includes a transmission rod rotatably mounted on the main body. The transmission rod is a screw, and the cleaning assembly has a threaded hole. The cleaning assembly is sleeved on the transmission rod through the threaded hole and threadedly driven by the transmission rod. The cleaning assembly can move relative to the filter screen along the axial direction of the transmission rod under the action of the transmission rod. The transmission assembly is designed to include a rotatable transmission rod, which is a screw, and the cleaning assembly has a threaded hole that matches the transmission rod, so that the cleaning assembly can be connected to the transmission rod through threaded drive. When the transmission rod rotates, the cleaning assembly moves along the axial direction of the transmission rod under the action of the thread. This design allows the cleaning assembly to perform effective linear movement under the action of the transmission rod, thereby performing a cleaning operation relative to the filter screen.

[0019] In some embodiments, the screw includes a screw body, on which an external thread structure is provided, the external thread structure being configured as a trapezoidal thread.

[0020] In some embodiments, the screw body is provided with reinforcing ribs along the axial direction on its periphery, and the screw is integrally injection molded; or, the axial cross-section of the screw body is circular, and the screw also includes a support rod located at least inside the screw body, at least the screw body is injection molded and wrapped around the outside of the support rod, and the support rod is a metal part.

[0021] In some embodiments, the drive assembly includes a drive element, a drive gear connected to the drive element, and a transmission gear driven by the drive gear. The transmission rod has a transmission end, and the transmission gear is driven by the transmission end to drive the rotation of the transmission rod. The drive assembly consists of a drive element, a drive gear, and a transmission gear. The drive element can be a motor or other type of power device, transmitting power to the transmission gear via the drive gear. The transmission gear is further connected to the transmission end of the transmission rod, thereby achieving rotational drive of the transmission rod. This design effectively transmits the power of the drive element to the transmission rod through a gear transmission system, enabling the transmission rod to rotate stably and efficiently. This structure not only improves the efficiency of the transmission system but also makes the operation of the entire device more precise and reliable.

[0022] In some embodiments, either the transmission end or the transmission gear has a limiting protrusion, and the other has a limiting recess that matches the limiting protrusion. The limiting protrusion is inserted into the limiting recess to connect the transmission end and the transmission gear. A limiting structure is designed to achieve a reliable connection between the transmission end and the transmission gear. Specifically, one component of the transmission end and the transmission gear has a limiting protrusion, while the other component has a matching limiting recess. By inserting the limiting protrusion into the limiting recess, a stable connection between the two can be achieved. This limiting structure design helps ensure precise alignment between the transmission end and the transmission gear, reducing the possibility of slippage or misalignment during transmission, thereby improving the stability and reliability of the transmission system. Furthermore, this design facilitates installation and disassembly, making maintenance and component replacement more convenient. This limiting structure is commonly used in mechanical transmission systems requiring high precision and high reliability, ensuring consistent performance during operation.

[0023] In some embodiments, the limiting protrusion includes multiple limiting ribs, which are radially distributed outward from the center of the transmission rod. The limiting protrusion at the transmission end is designed with multiple limiting ribs, which are radially distributed outward from the center of the transmission rod and can adopt different shapes to adapt to specific application requirements.

[0024] In some embodiments, a second guide ramp is provided on each opposite side of the edge of any limiting rib, and a third guide ramp adapted to the second guide ramp is provided on the limiting recess. The third guide ramp is used to abut against the second guide ramp and guide the limiting rib into the limiting recess. To further optimize the connection performance of the limiting structure, the cooperation between the second guide ramp and the third guide ramp is designed. Specifically, a second guide ramp is provided on both sides of the edge of any limiting rib, and a third guide ramp adapted to the second guide ramp is provided on the corresponding limiting recess. The purpose of this design is to achieve smooth insertion and docking of the limiting rib through the interaction of the second guide ramp and the third guide ramp. When the limiting rib approaches the limiting recess, the second guide ramp contacts the third guide ramp and guides the limiting rib into the limiting recess, facilitating the engagement between the limiting rib and the limiting recess. This design not only improves the accuracy and convenience of component assembly, but also reduces wear or damage caused by improper operation. The introduction of this guiding structure makes the assembly process smoother and more efficient, especially in applications that require frequent disassembly and assembly, significantly improving operational convenience and overall system reliability.

[0025] In some embodiments, the inner wall of the limiting recess is provided with a plurality of first guide ribs spaced apart circumferentially, and the ends of the first guide ribs are provided with first guide ramps. The first guide ramps are inclined along the circumferential direction of the limiting recess towards the bottom wall of the limiting recess, and a first limiting groove is formed between two adjacent first guide ribs. The periphery of the limiting protrusion is provided with a plurality of second guide ribs spaced apart, and the ends of the second guide ribs facing the bottom wall of the limiting recess are provided with first guide ramps. The first guide ramps are adapted to the first guide ramps to guide the second guide ribs to slide into the first limiting groove. The side of the first guide ribs facing the center of the limiting recess is provided with a second guide ramp. The second guide ramps are inclined from the opening of the limiting recess to the bottom wall towards the center of the limiting recess, and the plurality of second guide ramps enclose a second limiting groove. The limiting protrusion includes a limiting boss located in the middle, and the second guide ribs are distributed on the periphery of the limiting boss. The limiting boss is accommodated in the second limiting groove. At least a portion of the limiting boss is configured as a frustum structure, and the small-diameter end of the frustum structure is close to the bottom wall of the limiting recess.

[0026] In some embodiments, the transmission assembly also includes a dust cover, with the screw passing through the dust cover and connected to the transmission gear. A clearance channel is provided on the side of the dust cover away from the filter screen, and the threaded hole is fitted onto the screw through the clearance channel. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0028] Figure 1 This is a schematic diagram of an air handling device provided in one embodiment of this application.

[0029] Figure 2 This is a perspective sectional view of an air handling device provided in one embodiment of this application.

[0030] Figure 3 For this application Figure 2 A schematic diagram of a structure in the embodiment where the front cover is separated from the main body.

[0031] Figure 4 This is a schematic diagram of the structure of a front cover, cleaning component, and filter screen provided in one embodiment of this application.

[0032] Figure 5 This is a partial cross-sectional view of a drive assembly, transmission assembly, and cleaning assembly provided in one embodiment of this application.

[0033] Figure 6 This is a partial exploded view of a drive assembly, transmission assembly, and cleaning assembly provided in one embodiment of this application.

[0034] Figure 7 This is a partial three-dimensional view of a component such as a nut sleeve and a limiting slide groove provided in one embodiment of this application.

[0035] Figure 8 This is a partial exploded view of a transmission rod and transmission gear provided in one embodiment of this application.

[0036] Figure 9 This is a partial cross-sectional view of a drive assembly, transmission assembly, etc., provided in one embodiment of this application.

[0037] Figure 10 This is a partial exploded view of a drive assembly, transmission assembly, and cleaning assembly, etc., provided in one embodiment of this application.

[0038] Figure 11 This is a schematic diagram of a transmission gear provided in one embodiment of this application.

[0039] Figure 12 This is a partial structural schematic diagram of a transmission rod provided in one embodiment of this application.

[0040] Figure 13 This is another partial structural diagram of a drive assembly, transmission assembly, etc., provided in one embodiment of this application.

[0041] Figure 14 This is another structural schematic diagram of a transmission gear provided in one embodiment of this application.

[0042] Figure 15This is a partial structural diagram of a screw provided in one embodiment of this application.

[0043] Figure 16 It shows Figure 15 A partial structural schematic diagram of the screw in the embodiment shown from another perspective.

[0044] Figure 17 This is a partial structural diagram of a screw provided in another embodiment of this application.

[0045] Figure 18 It shows Figure 17 A partial structural schematic diagram of the screw from another perspective in the embodiment shown.

[0046] Figure 19 This is a partial structural diagram of a dust cover, screw, etc., provided in one embodiment of this application.

[0047] Figure 20 This is a partial structural diagram of a dust cover, screw, cleaning assembly, etc., provided in one embodiment of this application.

[0048] Figure 21 This is a schematic diagram of a cleaning component provided in one embodiment of this application.

[0049] Figure 22 This is another structural schematic diagram of a cleaning component provided in one embodiment of this application.

[0050] Figure 23 for Figure 22 A partially enlarged schematic diagram of point A in the illustrated embodiment.

[0051] Figure label:

[0052] 10. Air handling unit; 100. Main body; 110. Front cover; 120. Outer shell; 130. Air inlet; 140. Filter screen; 150. Collection box; 200. Drive assembly; 210. Drive component; 220. Drive gear; 230. Transmission gear; 231. Limiting recess; 2311. Third guide ramp; 2312. First guide rib; 2313. First guide ramp; 2314. First limiting groove; 2315. First stop; 2316. Second guide ramp; 2317. Second limiting groove; 240. Transition gear; 300. Transmission assembly; 310. Linkage component; 320. Transmission rod; 3201. Screw; 3202. Screw body; 3203. External thread structure; 3204. Support rod; 3205. Trapezoidal thread; 321. Transmission end; 322. 3221. Limiting protrusion; 3222. Limiting rib; 3223. Second guide slope; 3224. Second guide rib; 3225. Second stop; 3226. Limiting boss; 3227. Frustum structure; 330. Worm gear; 331. Limiting hole; 340. Nut sleeve; 341. First sub-sleeve; 342. Second sub-sleeve; 343. Limiting groove; 350. Flexible component; 360. Bearing; 370. Dust cover; 371. Clearance channel; 400. Cleaning component; 410. Threaded hole; 420. Comb tooth component; 421. First cleaning tooth; 422. Arc structure; 423. Second cleaning tooth; 430. Fixing bracket; 440. Pressing structure; 441. Pressing plate; 442. Connecting plate; 443. Support plate; 450. Connecting screw. Detailed Implementation

[0053] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0054] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 In some embodiments, this application provides an air handling device 10, which may include, but is not limited to, air purifiers, air conditioners, humidifiers, etc. This application uses an air purifier as an example for description. The air handling device 10 includes a main body 100, a drive assembly 200, a transmission assembly 300, and a cleaning assembly 400. The main body 100 is provided with an air inlet 130 and a filter 140 communicating with the air inlet 130. The drive assembly 200 is disposed on the main body 100. Figure 5 and Figure 10As shown, the transmission component 300 is located on the main body 100 and connected to the drive component 200; the cleaning component 400 is threadedly driven by the transmission component 300 and can move relative to the filter screen 140 under the drive of the transmission component 300 to clean the filter screen 140.

[0055] The aforementioned air handling unit 10 offers at least the following advantages: the drive component 200 and transmission component 300 of the air handling unit 10 work closely together and provide power. The threaded transmission design between the cleaning component 400 and the transmission component 300 converts rotational motion into linear motion. Driving the cleaning component 400 via threaded transmission provides higher precision, enabling the cleaning component 400 to maintain a stable speed and direction during transmission, reducing the possibility of slippage or deviation. The precision of the threaded transmission allows the cleaning component 400 to move in minute steps, achieving a more comprehensive and uniform cleaning of the filter 140. This allows the cleaning component 400 to move smoothly and precisely along the surface of the filter 140 under the drive of the transmission component 300. This design not only improves the stability and reliability of the cleaning process but also effectively reduces the problems of uneven cleaning and filter damage that may occur during manual cleaning. The automated cleaning mechanism reduces the user's maintenance needs, improves ease of use and user experience, and ensures that the filter 140 always maintains good ventilation, reducing clogging caused by dust and particulate matter accumulation, thereby helping to improve the purification efficiency of the air handling unit 10.

[0056] Please see Figure 5 and Figure 6 In some embodiments, the transmission assembly 300 includes a transmission rod 320 fixed to the main body 100, and a worm gear 330 and a nut sleeve 340 sequentially sleeved on the transmission rod 320. The outer circumferential surface of the worm gear 330 is threadedly connected to the inner circumferential surface of the nut sleeve 340. The transmission rod 320 is fixed to the main body 100 and is provided with rotational power by the drive assembly 200. When the transmission rod 320 rotates, it drives the worm gear 330 sleeved on it to rotate synchronously. The worm gear 330 and the nut sleeve 340 are threadedly connected, a design that allows the rotation of the worm gear 330 to be converted into sliding motion along the axial direction of the transmission rod 320.

[0057] Specifically, such as Figure 5 and Figure 6As shown, the transmission assembly 300 also includes a linkage 310. The nut sleeve 340 is provided with a limiting groove 343 extending axially along the transmission rod 320. One end of the linkage 310 is connected to the cleaning assembly 400, and the other end of the linkage 310 extends from the limiting groove 343 into the nut sleeve 340 and is engaged at both ends of the worm gear 330. The drive assembly 200 is connected to the transmission rod 320 and is used to drive the transmission rod 320 to rotate. The transmission rod 320 can synchronously drive the worm gear 330 to rotate synchronously within the nut sleeve 340. When the worm gear 330 rotates within the nut sleeve 340, it can slide axially along the transmission rod 320 and synchronously drive the linkage 310 and the cleaning assembly 400 connected to the linkage 310 to clean the filter screen 140. The limiting groove 343 on the nut sleeve 340 provides a channel for the connection between the linkage 310 and the worm gear 330 inside the nut sleeve 340. One end of the linkage 310 extends into the nut sleeve 340 through the limiting groove 343 and engages with both ends of the worm gear 330. The other end of the linkage 310 is firmly connected to the cleaning component 400. When the rotation of the worm gear 330 inside the nut sleeve 340 is converted into linear sliding along the axial direction of the transmission rod 320, it also synchronously drives the linkage 310 and its connected cleaning component 400. This structural design allows the cleaning component 400 to move smoothly and precisely on the surface of the filter screen 140, thereby achieving efficient cleaning of the filter screen 140.

[0058] Specifically, such as Figure 5 As shown, in some embodiments, the worm 330 is hollow and forms a limiting hole 331. The worm 330 is sleeved on the transmission rod 320 through the limiting hole 331. The worm 330 can slide along the axial direction of the transmission rod 320. The wall of the limiting hole 331 abuts against the outer peripheral surface of the transmission rod 320 to restrict the relative rotation of the worm 330 and the transmission rod 320 in the circumferential direction, so that the worm 330 can rotate synchronously with the transmission rod 320. The worm gear 330 is designed as a hollow structure and forms a limiting hole 331, which is sleeved on the transmission rod 320. The limiting hole 331 allows the worm gear 330 to slide in the axial direction of the transmission rod 320, and at the same time improves its stability in the circumferential direction of the transmission rod 320, so that the worm gear 330 can rotate with the transmission rod 320. This synchronous rotation allows the rotational motion of the worm gear 330 to be effectively converted into linear sliding along the axial direction of the transmission rod 320, thereby driving the linkage 310 and the cleaning assembly 400 to perform a smooth and precise cleaning motion on the filter screen 140.

[0059] More specifically, in some embodiments, the cross-sectional profile of the transmission rod 320 is non-circular, and the limiting hole 331 is adapted to the transmission rod 320, that is, the limiting hole 331 is also set to be non-circular. This design prevents circumferential rotation between the worm 330 and the transmission rod 320, allowing the worm 330 to rotate synchronously with the transmission rod 320, while still allowing the worm 330 to slide freely along the axial direction of the transmission rod 320, so that the rotational motion of the worm 330 can be effectively converted into linear sliding along the axial direction of the transmission rod 320. For example, as... Figure 5 and Figure 8 As shown, in some embodiments, the transmission rod 320 is a transmission rod 320 with a rectangular cross-sectional profile, and the limiting hole 331 is adapted to the transmission rod 320.

[0060] Specifically, such as Figure 7 As shown, in some embodiments, the nut sleeve 340 includes a first sub-sleeve 341 and a second sub-sleeve 342 connected to the first sub-sleeve 341. The first sub-sleeve 341 and the second sub-sleeve 342 wrap around the outer circumferential surface of the worm 330 and are threadedly connected to the worm 330. A limiting groove 343 is formed between the first sub-sleeve 341 and the second sub-sleeve 342. This structural design makes it easier to install the nut sleeve 340 around the worm 330. The nut sleeve 340 can be considered as being formed by the first sub-sleeve 341 and the second sub-sleeve 342. The inner circumferential surfaces of the first sub-sleeve 341 and the second sub-sleeve 342 can also be provided with threaded structures adapted to the worm 330, so that the worm 330 can be threadedly connected to the first sub-sleeve 341 and the second sub-sleeve 342, thereby allowing the worm 330 to rotate and move within the internal space enclosed by the first sub-sleeve 341 and the second sub-sleeve 342.

[0061] More specifically, such as Figure 5As shown, in some embodiments, the transmission assembly 300 further includes a flexible member 350 disposed on the nut sleeve 340. The flexible member 350 at least partially obstructs the limiting groove 343. The flexible member 350 elastically abuts against the linkage member 310, and the linkage member 310 can compress the flexible member 350 to produce elastic deformation when sliding along the limiting groove 343. The flexible member 350 may include, but is not limited to, soft rubber. Commonly used soft rubber materials include TPE (thermoplastic elastomer), TPR (thermoplastic rubber), and TPU (thermoplastic polyurethane). These materials have excellent elasticity and wear resistance, making them suitable for use in components that require frequent movement and deformation. The flexible member 350 can be installed through various processes, such as bonding, integral injection molding, secondary injection molding, or snap-fit ​​connection. The flexible component 350 elastically abuts against the linkage component 310. When the linkage component 310 slides along the limiting groove 343, it can compress the flexible component 350 to produce elastic deformation, meaning the flexible component 350 does not obstruct the sliding of the linkage component 310 within the limiting groove 343. Simultaneously, the flexible component 350 shields the limiting groove 343, effectively preventing external contaminants from entering the nut sleeve 340, thus maintaining a clean environment between the nut sleeve 340 and the worm gear 330, improving the smoothness of the transmission process, and providing additional cushioning and shock absorption, thereby enhancing the system's stability and durability. Furthermore, the nut sleeve 340 can be made of nylon, a material that is not only grease-resistant but also suitable for one-piece injection molding. This material choice helps lubricant adhere to the worm gear 330, resulting in smoother sliding, reduced friction and wear, and improved overall system efficiency and service life.

[0062] Specifically, such as Figure 6 As shown, in some embodiments, the transmission assembly 300 further includes a bearing 360 embedded in the nut sleeve 340, and the bearing 360 is sleeved on the transmission rod 320. The bearing 360 may include, but is not limited to, a ball bearing 360. By embedding the bearing 360 in the nut sleeve 340 and sleeved on the transmission rod 320, the friction of the transmission rod 320 during rotation can be reduced, and precise support and guidance of the transmission rod 320 can be achieved. This effectively prevents the transmission rod 320 from wobbling during rotation and improves the stability and accuracy of the transmission motion.

[0063] Please see Figure 9 and Figure 10In some embodiments, the transmission assembly 300 includes a transmission rod 320 rotatably mounted on the main body 100. The transmission rod 320 is a screw. The cleaning assembly 400 has a threaded hole 410. The cleaning assembly 400 is sleeved on the transmission rod 320 through the threaded hole 410 and threadedly driven by the transmission rod 320. Under the drive of the transmission rod 320, the cleaning assembly 400 can move relative to the filter screen 140 along the axial direction of the transmission rod 320 and clean the filter screen 140. The transmission assembly 300 is designed to include a rotatable transmission rod 320, which is a screw. The cleaning assembly 400 has a threaded hole 410 that matches the transmission rod 320, so that the cleaning assembly 400 can be connected to the transmission rod 320 through threaded drive. When the transmission rod 320 rotates, the cleaning assembly 400 moves along the axial direction of the transmission rod 320 under the action of the thread. This design allows the cleaning assembly 400 to effectively perform linear movement under the drive of the transmission rod 320, thereby performing a cleaning operation relative to the filter screen 140.

[0064] Please see Figure 5 , Figure 9 , Figure 10 , Figure 13 In some embodiments, the drive assembly 200 includes a drive element 210, a drive gear 220 connected to the drive element 210, and a transmission gear 230 driven by the drive gear 220. The transmission rod 320 has a transmission end 321, and the transmission gear 230 is driven by the transmission end 321 to drive the rotation of the transmission rod 320. The drive assembly 200 consists of the drive element 210, the drive gear 220, and the transmission gear 230. The drive element 210 can be a motor or other type of power device, which transmits power to the transmission gear 230 through the drive gear 220. The transmission gear 230 is further connected to the transmission end 321 of the transmission rod 320, thereby realizing the rotational drive of the transmission rod 320. This design effectively transmits the power of the drive element 210 to the transmission rod 320 through the gear transmission system, enabling the transmission rod 320 to rotate stably and efficiently. This structure not only improves the efficiency of the transmission system but also makes the operation of the entire device more precise and reliable.

[0065] Specifically, such as Figure 5 , Figure 9 , Figure 10 and Figure 13As shown, in some embodiments, the drive assembly 200 further includes at least one intermediate gear 240 that is transmissionally connected between the drive gear 220 and the transmission gear 230. Thus, the power of the drive member 210 is transmitted to the transmission rod 320 via the drive gear 220, intermediate gear 240, and transmission gear 230, thereby driving the transmission rod 320 to rotate, such as driving the screw 3201 to rotate. The arrangement of the drive gear 220, intermediate gear 240, and transmission gear 230 can achieve speed regulation. For example, by reasonably setting the number of teeth on the drive gear 220, intermediate gear 240, and transmission gear 230, the transmission ratio can be reasonably set, allowing the screw 3201 to run smoothly at a suitable speed, thereby improving the smooth operation of the cleaning assembly 400.

[0066] More specifically, taking the drive gear 220 with 27 teeth, the transition gear 240 with 17 teeth, and the transmission gear 230 with 17 teeth, and the transmission ratio of 27 / 17 as an example, if the speed of the drive component 210 is 8 rpm, then the speed of the screw 3201 is 12.78 rpm. This achieves the purpose of increasing speed and enables the cleaning component 400 to operate smoothly.

[0067] Specifically, the driving component 210 can be a motor, which can rotate in both directions. This allows the driving component 210 to drive the screw 3201 to rotate in both directions via the drive gear 220, transition gear 240, and transmission gear 230. This, in turn, causes the cleaning component 400 to reciprocate axially relative to the screw 3201. The axis of the screw 3201 can be parallel to the height direction of the filter screen 140, such as being parallel to the vertical direction. Thus, the rotation of the screw 3201 allows the cleaning component 400 to move up and down along the height direction of the filter screen 140, achieving the purpose of reciprocating cleaning of the filter screen 140. (See also...) Figure 15 , Figure 16 , Figure 17 and Figure 18 In some embodiments, the screw 3201 includes a screw body 3202, on which an external thread structure 3203 is provided. That is, the threaded hole 410 on the cleaning component 400 is sleeved on the outside of the screw body 3202, and the threaded hole 410 and the external thread structure 3203 on the screw body 3202 are threadedly connected. Thus, the screw 3201 rotates under the drive of the drive component 200, so that the screw 3201 and the threaded hole 410 on the cleaning component 400 can move relative to each other, so that the cleaning component 400 can reciprocate along the axial direction of the screw 3201.

[0068] Among them, the external thread structure 3203 is configured as a trapezoidal thread 3205. The trapezoidal thread 3205 has the advantages of high transmission accuracy, strong load-bearing capacity, firm fastening, easy processing, good centering and processability, which is conducive to improving the smooth operation of the cleaning component 400. Moreover, the processing cost is low, making it suitable for widespread application.

[0069] Since the pitch of the trapezoidal thread 3205 has a significant impact on its transmission performance, self-locking performance, and machining difficulty, in this embodiment, by reasonably setting the pitch of the trapezoidal thread 3205, such as a pitch of 7mm to 9mm, the transmission accuracy and self-locking performance of the external thread structure 3203 can be improved, and the machining difficulty of the external thread structure 3203 can be reduced. Specifically, the pitch of the trapezoidal thread 3205 can be any length of 7mm, 8mm, 9mm, or 7mm to 9mm.

[0070] Please see Figure 15 and Figure 16 The screw body 3202 has reinforcing ribs arranged axially along its periphery. The screw 3201 is integrally injection molded. The reinforcing ribs reduce the possibility of bending of the screw 3201 due to injection shrinkage caused by excessive material thickness during processing. This improves the molding quality of the screw 3201 and allows the runout tolerance during screw rotation to be controlled within a suitable range. This reduces the possibility of excessive runout during screw rotation leading to excessive oscillation of the cleaning component 400, potentially causing it to jam. This improves the smoothness of the cleaning component 400's movement and enhances the cleaning effect. Furthermore, the integral injection molding of the screw 3201 facilitates processing, is easy to produce, and has lower processing costs, which contributes to improved performance of the screw 3201. Specifically, there can be multiple reinforcing ribs, which can be spaced out on the periphery of the screw body 3202. For example, the reinforcing ribs can be arranged in pairs on the periphery of the screw body 3202, such as one pair, two pairs, or three pairs. Specifically, two pairs of reinforcing ribs are arranged on the periphery of the screw body 3202. In this case, the axial cross-section of the screw body 3202 is in a "+" shape. This shape can reduce the possibility of the screw 3201 bending due to injection shrinkage caused by excessive material thickness during processing, thus improving the molding quality of the screw 3201. It is understood that three, five, or other numbers of reinforcing ribs can also be spaced out on the periphery of the screw body 3202.

[0071] Please see Figure 17 and Figure 18The screw body 3202 has a circular axial cross-section. The screw 3201 also includes a support rod 3204 located at least inside the screw body 3202, with the screw body 3202 injection-molded around the support rod 3204. The support rod 3204 reduces the bending of the screw 3201 after molding. If the support rod 3204 has high hardness and strength, the screw 3201 is less prone to bending, which helps improve the molding quality of the screw 3201. This allows the runout tolerance of the screw 3201 during rotation to be controlled within a suitable range, reducing the possibility of excessive runout of the cleaning component 400, which could lead to jamming, and thus improving the smoothness of the cleaning component 400's movement and the cleaning effect.

[0072] The support rod 3204 is made of metal. The metal material of the support rod 3204 provides greater hardness and strength, which helps reduce the likelihood of bending of the formed screw 3201, improves the forming quality of the screw 3201, further reduces the runout tolerance of the screw 3201 during rotation, and enhances the operational stability of the cleaning component 400. Specifically, the support rod 3204 can be made of steel bars, etc.

[0073] The support rod 3204 has a diameter of 3mm to 5mm, and the screw body 3202 has a diameter of 8mm to 10mm. By appropriately setting the diameters of the support rod 3204 and the screw body 3202, the formed screw 3201 has good strength and is not easily bent. At the same time, by appropriately setting the diameter of the screw body 3202, the machining difficulty of the external thread structure 3203 on the screw body 3202 can be reduced, making the machining of the entire screw 3201 easier. Specifically, the diameter of the support rod 3204 can be any size from 3mm, 4mm, 5mm, or 3mm to 5mm; the diameter of the screw body 3202 can be any size from 8mm, 9mm, 10mm, or 8mm to 10mm.

[0074] Furthermore, such as Figure 17 and Figure 18 The screw 3201 also includes a transmission end 321 connected to the screw body 3202. The transmission end 321 is connected to the transmission gear 230. The support rod 3204 can also be located inside the transmission end 321. That is, the support rod 3204 is located inside the screw body 3202 and the transmission end 321. For example, the support rod 3204 can penetrate the entire screw 3201. This can further improve the molding quality of the screw 3201 and reduce the possibility of bending of the molded screw 3201. It is understood that in some possible embodiments, the support rod 3204 can be located inside the screw body 3202.

[0075] Specifically, such as Figure 8 , Figure 11 and Figure 12 In some embodiments, either the transmission end 321 or the transmission gear 230 is provided with a limiting protrusion 322, and the other of the transmission end 321 and the transmission gear 230 is provided with a limiting recess 231 that matches the limiting protrusion 322. The limiting protrusion 322 is inserted into the limiting recess 231 to achieve the connection between the transmission end 321 and the transmission gear 230. A limiting structure is designed to achieve a reliable connection between the transmission end 321 and the transmission gear 230. Specifically, one component of the transmission end 321 and the transmission gear 230 is provided with a limiting protrusion 322, while the other component is provided with a matching limiting recess 231. By inserting the limiting protrusion 322 into the limiting recess 231, a stable connection between the two can be achieved. This limiting structure design helps to ensure precise alignment between the transmission end 321 and the transmission gear 230, preventing slippage or misalignment during transmission, thereby improving the stability and reliability of the transmission system. Furthermore, this design facilitates installation and disassembly, making maintenance and component replacement more convenient. This type of limiting structure is commonly used in mechanical transmission systems requiring high precision and reliability, ensuring consistent performance throughout operation.

[0076] More specifically, such as Figure 11 and Figure 12 As shown, in some embodiments, the limiting protrusion 322 includes a plurality of limiting ribs 3221, which are radially distributed outward from the center of the transmission rod 320. The limiting protrusion 322 of the transmission end 321 is designed as a plurality of limiting ribs 3221, which are radially distributed outward from the center of the transmission rod 320 and can adopt different shapes to adapt to specific application requirements. For example, the limiting ribs 3221 can be designed as X-shaped or Y-shaped (each rib is at a 120-degree angle to the others).

[0077] More specifically, such as Figure 11 and Figure 12As shown, in some embodiments, a second guide slope 3222 is provided on each opposite side of the edge of any limiting rib 3221, and a third guide slope 2311 adapted to the second guide slope 3222 is provided on the limiting recess 231. The third guide slope 2311 is used to abut against the second guide slope 3222 to guide the limiting rib 3221 into the limiting recess 231. To further optimize the connection performance of the limiting structure, the cooperation between the second guide slope 3222 and the third guide slope 2311 is designed. Specifically, a second guide slope 3222 is provided on both sides of the edge of any limiting rib 3221, and a third guide slope 2311 adapted to the corresponding limiting recess 231 is provided. The purpose of this design is to achieve smooth insertion and docking of the limiting rib 3221 through the interaction of the second guide slope 3222 and the third guide slope 2311. When the limiting rib 3221 approaches the limiting recess 231, the second guide ramp 3222 contacts the third guide ramp 2311 and guides the limiting rib 3221 into the limiting recess 231, facilitating the engagement between the limiting rib 3221 and the limiting recess 231. This design not only improves the accuracy and convenience of component assembly but also reduces wear or damage caused by improper operation. The introduction of this guiding structure makes the assembly process smoother and more efficient, especially in applications requiring frequent disassembly and assembly, significantly improving operational convenience and overall system reliability.

[0078] Please see Figure 13 , Figure 14 , Figure 15 The inner wall of the limiting recess 231 is provided with a plurality of first guide ribs 2312 spaced circumferentially. The ends of the first guide ribs 2312 are provided with first guide ramps 2313. This can be understood as the first guide rib 2312 having a first guide ramp 2313 near the opening of the limiting recess 231. The first guide ramp 2313 is inclined along the circumference of the limiting recess 231 towards the bottom wall of the limiting recess 231. A first limiting groove 2314 is formed between two adjacent first guide ribs 2312. Please refer to [link / reference]. Figure 16 and Figure 17The peripheral side of the limiting protrusion 322 is provided with a plurality of second guide ribs 3223 at intervals. The end of the second guide rib 3223 facing the bottom wall of the limiting recess 231 is provided with a first guide slope 3224. The first guide slope 2313 is adapted to the first guide slope 3224 to guide the second guide rib 3223 to slide into the first limiting groove 2314. Therefore, the first guide ramp 2313 and the first guide slope 3224 work together to effectively guide the second guide rib 3223 into the first limiting groove 2314. By cooperating with multiple second guide ribs 3223 and the first limiting groove 2314, such as when the second guide rib 3223 is inserted into the first limiting groove 2314, a stable connection can be achieved between the transmission end 321 of the transmission rod 320 and the transmission gear 230. This allows the transmission rod 320 and the transmission gear 230 to couple into position at different locations, facilitating the installation and disassembly of the transmission end 321 and the transmission gear 230, making maintenance and component replacement more convenient. Simultaneously, this limiting structure design helps improve the docking accuracy between the transmission end 321 and the transmission gear 230, reducing the possibility of slippage or misalignment during transmission, thereby improving the stability and reliability of the transmission system.

[0079] More specifically, the number of first guide ribs 2312 is 3 to 5, such as 3, 4, or 5. Figure 14 As shown, there are four first guide ribs 2312. By reasonably setting the number of first guide ribs 2312, the limiting recess 231 has a good limiting function, and at the same time, it can reduce the difficulty of processing the limiting recess 231 and save manufacturing costs.

[0080] Since the second guide rib 3223 and the two adjacent first guide ribs 2312 form a first limiting groove 2314, by reasonably setting the number of second guide ribs 3223, the limiting protrusion 322 can have a good limiting function. At the same time, it can reduce the difficulty of processing the limiting protrusion 322 and save manufacturing costs.

[0081] More specifically, the slope of the first guide ramp 2313 is 35° to 55°, such as 35°, 40°, 45°, 50°, 55°, or any angle between 35° and 55°. It can be understood that the sum of the inclination angle of the first guide ramp 3224 and the slope of the first guide ramp 2313 can be 90°, so that the two cooperate to provide good guidance for the assembly of the limiting recess 231 and the limiting protrusion 322. This allows the first guide ramp 2313 and the first guide ramp 3224 to guide the transmission rod 320 and the transmission gear 230 at different positions, enabling them to couple into place at different locations. Specifically, as... Figure 14As shown, the slope of the first guide ramp 2313 is 45°.

[0082] More specifically, such as Figure 14 As shown, a first retaining edge 2315 is provided at the end of the bottom wall of the first guide ramp 2313 away from the limiting recess 231. It can be understood that the width of the first retaining edge 2315 is relatively narrow. The first retaining edge 2315 is set vertically or inclined towards the direction of the first guide ramp 2313. Thus, when the second guide rib 3223 is inserted into the first limiting groove 2314, the first retaining edge 2315, which is set vertically or inclined towards the direction of the first guide ramp 2313, can provide a certain support and limiting effect on the second guide rib 3223, reducing the possibility of the second guide rib 3223 moving or jumping around the screw 3201 circumferentially relative to the first limiting groove 2314. This is beneficial to improving the reliability and stability of the connection between the limiting recess 231 and the limiting protrusion 322, and improving the smoothness of the rotation of the screw 3201.

[0083] More specifically, such as Figure 16 As shown, a second stop 3225 is provided at the end of the first guide slope 3224 near the bottom wall of the limiting recess 231. The second stop 3225 is vertically arranged or inclined towards the direction of the first guide slope. It can be understood that the width of the second stop 3225 is relatively narrow, and the second stop 3225 is vertically arranged or inclined towards the direction of the first guide slope 3224. Since the first guide rib 2312 is located between two adjacent second guide ribs 3223 after the second guide rib 3223 is inserted into the first limiting groove 2314, the second stop 3225, which is vertically arranged or inclined towards the direction of the first guide slope 3224, can provide a certain degree of support and limiting effect for the first guide rib 2312, reducing the possibility of the first guide rib 2312 moving or jumping around in the circumference of the screw 3201 relative to the second guide rib 3223. This is beneficial to improving the reliability and stability of the connection between the limiting recess 231 and the limiting protrusion 322, and improving the smoothness of the rotation of the screw 3201.

[0084] like Figure 14 A second guide ramp 2316 is provided on the side of the first guide rib 2312 facing the center of the limiting recess 231. The second guide ramp 2316 is inclined towards the center of the limiting recess 231 from the opening of the limiting recess 231 to the bottom wall. Multiple second guide ramps 2316 together form a second limiting groove 2317. That is, the second limiting groove 2317 is conical, and the bottom dimension of the second limiting groove 2317 is relatively small. Figure 16As shown, the limiting protrusion 322 includes a limiting boss 3226 located in the middle, and second guide ribs 3223 distributed around the periphery of the limiting boss 3226. The limiting boss 3226 is accommodated in a second limiting groove 2317. At least a portion of the limiting boss 3226 is configured as a frustum structure 3227, with the small-diameter end of the frustum structure 3227 close to the bottom wall of the limiting recess 231. Thus, the frustum structure 3227 on the limiting boss 3226 cooperates with the conical second limiting groove 2317 of the limiting recess 231, ensuring that the limiting recess 231 and the limiting protrusion 322 are centered when coupled. This reduces the runout tolerance of the screw 3201 during rotation, improves the smoothness of the screw 3201's rotation, and helps improve the operational stability of the cleaning assembly 400.

[0085] like Figure 19 As shown, the transmission assembly 300 also includes a dust cover 370. The screw 3201 passes through the dust cover 370 and is connected to the transmission gear 230. The dust cover 370 has a clearance channel 371 on the side away from the filter screen 140. The threaded hole 410 is sleeved on the screw 3201 through the clearance channel 371 and moves relative to the screw 3201 along the clearance channel 371.

[0086] The drive end 321 of the screw 3201 can be located outside the dust cover 370, allowing the drive end 321 of the screw 3201 to connect smoothly and conveniently with the transmission gear 230, thereby enabling the rotation of the transmission gear 230 to drive the screw 3201 to rotate. The threaded hole 410 of the cleaning component 400 is connected to the screw 3201 inside the dust cover 370 through the clearance channel 371, so as to realize the threaded transmission connection between the cleaning component 400 and the screw 3201, so that the rotation of the screw 3201 can drive the cleaning component 400 to move along the axial direction of the screw 3201 within the clearance channel 371. The dust cover 370 reduces the possibility of hair and other dirt getting stuck in the threaded structure. For example, the external thread structure 3203 of the screw 3201 is located inside the dust cover 370, and the threaded hole 410 of the cleaning component 400 is threadedly connected to the external thread structure 3203 through the clearance channel 371. Thus, the dust cover 370 reduces the possibility of hair and other dirt getting stuck between the external thread structure 3203 and the threaded hole 410, which could cause the threaded structure to rotate unevenly or make it difficult to clean hair and dirt. This improves the smoothness of the movement of the cleaning component 400, simplifies the hair cleaning operation, improves the reliability of equipment operation, and helps to improve user satisfaction.

[0087] The avoidance channel 371 is located on the side of the dust cover 370 away from the filter screen 140, which can reduce the possibility of hair and other dirt entering between the screw 3201 and the threaded hole 410 through the avoidance channel 371. At the same time, it provides installation space for the threaded connection between the threaded hole 410 of the cleaning component 400 and the screw 3201, and provides movement space for the cleaning component 400 to move along the axial direction of the screw 3201, making the avoidance channel 371 more versatile.

[0088] Please see Figure 21 and Figure 22 In some embodiments, the cleaning assembly 400 includes a mounting bracket 430 and a comb-like component 420. The mounting bracket 430 is threadedly driven to the transmission assembly 300, and the comb-like component 420 removes dirt from the filter screen 140 by interfering with it. Specifically, a threaded hole 410 is provided on the mounting bracket 430, and the entire cleaning assembly 400 is threadedly connected to the transmission assembly 300 via the threaded hole 410 on the mounting bracket 430, allowing the cleaning assembly 400 to move relative to the filter screen 140 along the transmission rod 320. During the relative movement of the cleaning component 400 and the filter 140, the comb teeth 420 interfere with the filter 140, such as by contacting the filter 140. This allows the comb teeth 420 to clean the filter 140 during its movement relative to the filter 140, removing at least some of the dirt. This achieves self-cleaning of the filter 140, resulting in higher cleanliness and improved ventilation. It also reduces clogging caused by dust and particulate matter accumulation, thereby increasing the purification efficiency of the air handling unit 10. Furthermore, compared to manual cleaning of the filter 140, this design simplifies the user's manual cleaning process, improves the cleaning experience, reduces maintenance needs, and enhances ease of use and user experience.

[0089] like Figure 3As shown, in some embodiments, a collection box 150 is provided below the filter screen 140, and the comb tooth 420 is configured to clean the dirt on the filter screen 140 and collect the dirt into the collection box 150. After the comb tooth 420 scrapes away the dirt from the filter screen 140, the dirt will fall and collect in the collection box 150 located below the filter screen 140 under the influence of gravity. Simultaneously, as the comb tooth 420 moves towards the collection box 150, the dirt gradually accumulates and is eventually collected in the collection box 150, thus achieving centralized collection of dirt during the cleaning process of the cleaning component 400 on the filter screen 140. This prevents secondary contamination and ensures that the cleaning component 400 remains clean, enabling the equipment to operate continuously and efficiently. Furthermore, the collection box 150 facilitates centralized processing of dirt, making it more convenient for users to clean the collected dirt; they only need to empty the collection box 150 periodically, making operation convenient.

[0090] In the above embodiments, such as Figure 22 As shown, the comb component 420 is provided with a plurality of first cleaning teeth 421 that can abut against the filter screen 140. The first cleaning teeth 421 are used to abut against the filter screen 140 to scrape off dirt on the filter screen 140. The scraping action of the first cleaning teeth 421 helps to improve the cleaning efficiency and cleaning effect of the cleaning component 400 on the filter screen 140, further improving the cleanliness of the filter screen 140. At the same time, the arrangement of the first cleaning teeth 421 can reduce the possibility of the comb component 420 itself being entangled by hair. If the first cleaning teeth 421 are arranged in rows, the risk of hair and other fine dirt getting entangled between the teeth can be reduced during the cleaning process. This reduces the possibility of performance degradation or equipment failure that may be caused by the first cleaning teeth 421 being entangled, so that the equipment can still maintain a high efficiency of filtration and cleaning effect after long-term operation, providing users with a more reliable and low-maintenance user experience.

[0091] Furthermore, such as Figure 23As shown, the tip of the first cleaning tooth 421 is set as an arc structure 422, that is, the first cleaning tooth 421 is an arc tooth structure. This design makes the outer edge of the entire first cleaning tooth 421 a relatively smooth curved surface structure, which can reduce the possibility of the sharp corner structure of the outer edge of the first cleaning tooth 421 scratching the user and improve the user's safety. At the same time, setting the tip of the first cleaning tooth 421 as an arc structure 422 allows the tip of the arc structure 422 to penetrate deeper into the interior of hair clumps and other accumulated dirt, effectively scraping away hair and other dirt, improving the cleaning effect of dirt, and thus improving the cleanliness of the filter screen 140. Meanwhile, this design allows the first cleaning tooth 421 to contact the filter screen 140 through the arc structure 422. That is, the outer edge of the first cleaning tooth 421 contacting the filter screen 140 can be a relatively smooth curved surface. This reduces the possibility of the outer edge of the first cleaning tooth 421 scratching or abrading the filter screen 140 due to sharp corners, thus reducing wear on the filter screen 140 and extending its service life. Overall, this design, while improving the cleaning effect of the first cleaning tooth 421, also prevents scratching hands and abrasion of the filter screen, enhancing user safety and extending the service life of the filter screen 140.

[0092] In some embodiments, the comb member 420 is further provided with a second cleaning tooth 423. The second cleaning tooth 423 faces a portion of the transmission component 300. The second cleaning tooth 423 can scrape away clumps of dirt and other debris near the portion of the transmission component 300 opposite to the second cleaning tooth 423, reducing the problem of clumps of dirt and other debris affecting the smoothness of the power connection between the transmission component and the fixed frame 430. For example, if the second cleaning tooth 423 faces a portion of the transmission rod 320, the second cleaning tooth 423 can reduce the phenomenon of clumps of dirt and other debris causing blockage or jamming of the threaded transmission connection between the transmission rod 320 and the fixed frame 430. This allows the transmission component 300 and the fixed frame 430 to have a smooth and reliable power connection, enabling the cleaning component 400 to move smoothly relative to the filter screen 140. This reduces the performance degradation or equipment failure that may be caused by contamination and blockage of the transmission component 300 and the fixed frame 430, allowing the equipment to continue operating smoothly after long-term operation and reducing maintenance frequency. It maintains efficient filtration and cleaning effects. Overall, this design provides users with a more reliable and low-maintenance user experience.

[0093] In some embodiments, the air handling unit 10 has an air inlet 130 on its main body 100, and a filter 140 is connected to the air inlet 130. The air inlet 130 is located at the center of the filter 140, so most of the hair and other dirt filtered by the filter 140 will be concentrated in the middle of the filter 140. The fixing frame 430 of the cleaning component 400 is located in the middle of the filter 140, which results in more hair and other dirt near the fixing frame 430. A large amount of hair and other dirt enters the connection structure between the fixing frame 430 and the transmission component 300, which may cause some parts of the power component to rotate unevenly and the cleaning component 400 to not operate smoothly relative to the filter 140. If the transmission assembly 300 includes a transmission rod 320, such as a screw 3201, that is threadedly driven to the comb tooth 420, hair or other dirt in the clearance space 416 may become entangled on the transmission rod 320 or the screw 3201, causing the threaded connection between the screw 3201 and the comb tooth 420 to become jammed, preventing the comb tooth 420 from operating smoothly. Therefore, by providing a second cleaning tooth 415 along the thickness direction of the filter screen 140 on the side of the comb tooth 420 facing a portion of the transmission rod 320 (e.g., the side of the comb tooth 420 facing a portion of the screw 3201), the second cleaning tooth 415 scrapes away clumps of hair or other dirt located around the transmission rod 320 or the screw 3201, allowing for a smooth power connection between the screw 3201 and the fixing frame 430, thus enabling the cleaning assembly 400 to move smoothly relative to the filter screen 140. This automated cleaning method reduces the need for manual intervention, lowers maintenance complexity, and provides users with a more convenient user experience.

[0094] The second cleaning teeth 415 are arranged perpendicular to the arrangement direction of the first cleaning teeth 411. For example, the first cleaning teeth 411 can be understood as being arranged in a horizontal row along the width direction of the filter screen 140, while the second cleaning teeth 415 can be understood as being arranged in a vertical row along the thickness direction of the filter screen 140. This ensures that the second cleaning teeth 415 do not obstruct reliable contact between the first cleaning teeth 411 and the filter screen 140. Simultaneously, the second cleaning teeth 415 have a good scraping effect on lint and other dirt within the clearance space 416.

[0095] Furthermore, such as Figure 20 and Figure 21 As shown, the tooth height direction of the first cleaning tooth 411 can be aligned with... Figure 20 and Figure 21The Z-direction is parallel, such as the tooth height direction of the first cleaning tooth 411 being parallel to the height direction of the filter screen 140, and the arrangement direction of the first cleaning tooth 411 being parallel to the width direction of the filter screen 140. In this way, when the first cleaning tooth 411 contacts the filter screen 140, under the drive of the power component, the comb member 420 moves downward along the height direction of the filter screen 140, and the dirt on the filter screen 140 can be scraped off by the first cleaning tooth 411.

[0096] Furthermore, Figure 20 and Figure 21 As shown, the tooth height direction of the second cleaning tooth 415 is parallel to... Figure 20 and Figure 21 The X-direction is parallel, such as the tooth height direction of the second cleaning tooth 415 being parallel to the width direction of the filter screen 140. This can also be understood as the tooth height direction of the second cleaning tooth 415 being perpendicular to the movement direction of the comb member 420 relative to the filter screen 140, and the arrangement direction of the second cleaning tooth 415 being parallel to the height direction of the filter screen 140. Thus, during the process of the comb member 420 moving up and down relative to the filter screen 140 along its height direction, the second cleaning tooth 415 can smoothly scrape away some of the dirt around the transmission component 300, enabling a smooth power connection between the transmission component 300 and the fixed frame 430, allowing the cleaning component 400 to move smoothly relative to the filter screen 140.

[0097] In some embodiments, such as Figure 21 and Figure 22 As shown, a pressing structure 440 is provided on the side of the comb tooth 420 facing the collection box 150. The pressing structure 440 compresses the dirt inside the collection box 150, increasing the capacity utilization of the collection box 150. This allows it to hold more dirt without increasing its volume, extending the emptying cycle of the collection box 150 and reducing the frequency of maintenance for users. Simultaneously, the pressing structure 440 reduces the loose accumulation of dirt inside the collection box 150, ensuring it is compacted and reduced, decreasing the possibility of dirt scattering when emptying the collection box 150 and further reducing secondary pollution.

[0098] In the above embodiments, such as Figure 21 and Figure 22As shown, by setting the pressing structure 440 as a cavity structure, the cavity structure can increase the contact area between the pressing structure 440 and the dirt in the collection box 150, thereby increasing the compression of the dirt in the collection box 150. This is beneficial to further increase the capacity utilization of the collection box 150, allowing it to hold more dirt without increasing the volume of the collection box 150. At the same time, it allows the dirt in the collection box 150 to be further compressed, effectively reducing the phenomenon of loose accumulation of dirt in the dust box, reducing the possibility of dirt scattering when emptying the collection box 150, further reducing secondary pollution of dirt, reducing the frequency of users emptying the collection box 150, and improving the user experience of emptying the collection box 150.

[0099] like Figure 21 , Figure 22 As shown, in some embodiments, the cavity structure includes a pressure plate 441 located at the bottom end, which is parallel to or inclined to the bottom wall of the collection box 150. Since the bottom end of the pressure structure 440 preferentially and directly contacts the dirt in the collection box 150, by setting the pressure plate 441 parallel to or inclined to the bottom wall of the collection box 150, the projected area of ​​the pressure plate 441 on the plane where the bottom wall of the collection box 150 is located is larger, which increases the contact area between the pressure structure 440 and the dirt in the collection box 150. This can improve the compression of dirt in the collection box 150, which is beneficial to further increase the capacity utilization of the collection box 150, so that more dirt can be accommodated without increasing the volume of the collection box 150.

[0100] It is understood that the cleaning teeth 421 and the pressing structure 440 are located on the same side of the comb teeth 420, that is, the cleaning teeth 421 are located on the side of the comb teeth 420 closer to the collection box 150. In some embodiments, the pressing plate 441 is located below the cleaning teeth 421, so that when the cleaning assembly 400 moves towards the collection box 150, the pressing plate 441 will extend into the collection box 150 in advance, compressing the dirt in the collection box 150 in advance, increasing the capacity utilization of the collection box 150, and providing a space for the cleaning teeth 421 located behind the pressing plate 441 to continue moving towards the collection box 150 and scrape off the dirt. This allows the collection box 150 to hold more dirt and reduces the possibility of dirt overflowing from the collection box 150, so that the space inside the collection box 150 can be effectively utilized, further improving the capacity utilization of the collection box 150, reducing the frequency of users emptying the collection box 150, and making maintenance easier.

[0101] In some embodiments, such as Figure 22As shown, the cavity structure also includes a connecting plate 442 bent and disposed with the pressure plate 441. The first end of the connecting plate 442 is connected to the pressure plate 441, and the second end of the connecting plate 442 is located above the cleaning teeth 421. By bending the connecting plate 442 and the pressure plate 441, the pressure structure 440 can form a cavity structure, allowing the pressure plate 441 to have a larger contact area with the dirt in the collection box 150. By positioning the second end of the connecting plate 442 above the cleaning teeth 421, the pressure structure 440 and the cleaning teeth 421 will not interfere with each other, such as preventing the pressure structure 440 from clogging the cleaning teeth 421, thus ensuring that the cleaning teeth 421 have good cleaning and anti-tangling effects.

[0102] In some embodiments, such as Figure 21 and Figure 22 As shown, the cavity structure also includes support plates 443 located on both sides of the connecting plate 442, which connect the pressure plate 441 and the connecting plate 442. The support plates 443 improve the reliability and stability of the connection between the connecting plate 442 and the pressure plate 441, enhance the strength of the pressure structure 440, and enable the pressure plate 441 to have good ability to squeeze out dirt and be less prone to damage, thus extending the service life of the pressure structure 440 and improving the overall service life of the cleaning assembly 400.

[0103] The cavity structure has an opening on the side away from the filter screen 140. Because the opening is positioned away from the filter screen 140, it reduces the likelihood of dirt on the filter screen 140 falling onto the pressure plate 441, thus improving the cleanliness of the pressure structure 440. This allows dirt on the filter screen 140 to fall more concentratedly into the collection box 150, reducing the possibility of secondary contamination. Simultaneously, the opening reduces the material required for the cavity structure, contributing to cost savings.

[0104] In some embodiments, such as Figure 21 and Figure 22 As shown, two comb teeth 420 are connected to opposite sides of the fixed frame 430, meaning the fixed frame 430 is located between the two comb teeth 420. Thus, by connecting the fixed frame 430 in the middle to the transmission assembly 300, the two comb teeth 420 can be driven to move relative to the filter screen 140. In other words, by using one drive assembly 200 and transmission assembly 300, which are connected to the fixed frame 430 in the middle, the entire cleaning assembly 400 can be driven to move relative to the filter screen 140. Compared to having two sets of drive assemblies and transmission assemblies 300 connected to the cleaning assembly 400 from opposite sides to drive the entire cleaning assembly 400 relative to the filter screen 140, this simplifies the number of drive assemblies 200 and transmission assemblies 300, saving costs and meeting the design requirements of a compact structure and small size for the air handling equipment 10, making it suitable for widespread application.

[0105] In some embodiments, as shown in the figure, the comb teeth 420 and the fixing frame 430 are separate structures, and the comb teeth 420 and the fixing frame 430 are configured to be detachably connected. This design facilitates the assembly and disassembly of the comb teeth 420 and the fixing frame 430, allowing for individual repair or replacement of the comb teeth 420 and the fixing frame 430, which improves repair efficiency and saves repair costs. Specifically, the comb teeth 420 and the fixing frame 430 can be detachably connected by at least one of the following methods: bolt structure, snap-fit ​​structure, plug-in structure, tenon and mortise structure, and magnetic structure. Figure 21 As shown, the cleaning assembly 400 also includes connecting screws, and each comb tooth 420 is fixed to the mounting bracket 430 by the connecting screws, making assembly and disassembly convenient. The figure shows that the comb tooth 420 and the mounting bracket 430 are connected by connecting screws 450.

[0106] In some embodiments, such as Figure 22 As shown, the comb teeth 420 and the fixing frame 430 are an integral structure, or a single molded structure. This design improves the structural strength and stability of the cleaning assembly 400, eliminates loosening or misalignment problems that may occur due to the connection between multiple independent parts, and simplifies the manufacturing process, reducing assembly steps and time, thus helping to reduce production costs. Furthermore, the integral molded structure reduces potential failure points, improving the durability and reliability of the cleaning assembly 400. Since there are no extra connecting parts, the cleaning assembly 400 can transmit force and motion more efficiently during operation, improving its working efficiency.

[0107] Please see Figure 3 In some embodiments, the main body 100 includes a detachably connected front cover 110 and a housing 120. The housing 120 can be detachably connected to the front cover 110 via snap-fit, threaded connection, interference fit, or other means. The housing 120 and / or the front cover 110 form an air inlet. For example, the front cover 110 and housing 120, when connected, together enclose an air inlet communicating with the filter 140; or, the air inlet is directly opened on the front cover 110; or, the air inlet is directly opened on the housing 120, etc. These are merely illustrative examples and do not indicate or imply that the air inlet can only be arranged in this way. Specifically, the filter 140 is located on the housing 120, the drive assembly 200 is located on the housing 120, and the transmission assembly 300 is located on the front cover 110 and detachably connected to the drive assembly 200. The front cover 110 and housing 120 are detachably connected. The transmission assembly 300 is located on the front cover 110 and detachably connected to the drive assembly 200. This design allows users to easily remove the front cover 110 and the connected transmission assembly 300 and cleaning assembly 400 for easy replacement, cleaning, and maintenance.

[0108] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0109] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

[0110] In the description of this application, the term "multiple" refers to two or more. Unless otherwise expressly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be 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 application according to the specific circumstances.

Claims

1. An air handling device, characterized in that, include: The main body is provided with an air inlet and a filter screen connected to the air inlet; A driving component, wherein the driving component is disposed on the main body; A transmission assembly, which is disposed on the main body and connected to the drive assembly; A cleaning component, which is threadedly driven by the transmission component and is capable of moving relative to the filter screen under the drive of the transmission component.

2. The air handling equipment according to claim 1, characterized in that, The transmission assembly includes a transmission rod fixed to the main body and a worm gear and a nut sleeve sequentially sleeved on the transmission rod. The outer circumferential surface of the worm gear is threadedly connected to the inner circumferential surface of the nut sleeve. The worm gear can rotate within the nut sleeve under the drive of the transmission rod and drive the cleaning assembly to move relative to the filter screen.

3. The air handling equipment according to claim 2, characterized in that, The transmission assembly also includes a linkage component. The nut sleeve is provided with a limiting groove extending along the axial direction of the transmission rod. One end of the linkage component is connected to the cleaning assembly, and the other end of the linkage component extends into the nut sleeve from the limiting groove.

4. The air handling equipment according to claim 3, characterized in that, The drive assembly is connected to the transmission rod and is used to drive the transmission rod to rotate. The transmission rod can drive the worm gear to rotate within the nut sleeve. When the worm gear rotates within the nut sleeve, it can slide along the axial direction of the transmission rod and drive the linkage and the cleaning assembly connected to the linkage to clean the filter screen.

5. The air handling equipment according to claim 3, characterized in that, The transmission assembly also includes a flexible member disposed on the nut sleeve. The flexible member at least partially covers the limiting groove. The flexible member elastically abuts against the linkage member, and the linkage member can compress the flexible member to produce elastic deformation when sliding along the limiting groove.

6. The air handling equipment according to claim 2, characterized in that, The worm gear is hollow to form a limiting hole, and the worm gear is sleeved on the transmission rod through the limiting hole. The limiting hole is non-circular.

7. The air handling equipment according to claim 1, characterized in that, The transmission assembly includes a transmission rod rotatably mounted on the main body. The transmission rod is a screw. The cleaning assembly has a threaded hole. The cleaning assembly is sleeved on the transmission rod through the threaded hole and is threadedly driven by the transmission rod. The cleaning assembly can move relative to the filter screen along the axial direction of the transmission rod under the drive of the transmission rod.

8. The air handling equipment according to claim 7, characterized in that, The screw includes a screw body, and the screw body is provided with an external thread structure, which is configured as a trapezoidal thread. The screw body has reinforcing ribs arranged axially along its periphery, and the screw is integrally injection molded; or, The screw body has a circular axial cross-section. The screw also includes a support rod located at least inside the screw body. The screw body is injection molded around the support rod, and the support rod is made of metal.

9. The air handling apparatus according to any one of claims 2 to 8, characterized in that, The drive assembly includes a drive component, a drive gear connected to the drive component, and a transmission gear connected to the drive gear. The transmission rod has a transmission end, and the transmission gear is connected to the transmission end to drive the rotation of the transmission rod.

10. The air handling equipment according to claim 9, characterized in that, Either the transmission end or the transmission gear is provided with a limiting protrusion, and the other of the transmission end and the transmission gear is provided with a limiting recess that matches the limiting protrusion. The limiting protrusion is inserted into the limiting recess to realize the connection between the transmission end and the transmission gear.

11. The air handling equipment according to claim 10, characterized in that, The inner wall of the limiting recess is provided with a plurality of first guide ribs spaced apart along the circumference. The end of the first guide rib is provided with a first guide slope. The first guide slope is inclined along the circumference of the limiting recess toward the bottom wall of the limiting recess. A first limiting groove is formed between two adjacent first guide ribs. The peripheral side of the limiting protrusion is provided with a plurality of second guide ribs at intervals. The end of the second guide rib facing the bottom wall of the limiting recess is provided with a first guide slope. The first guide slope is adapted to the first guide slope to guide the second guide rib to slide into the first limiting groove. A second guide ramp is provided on the side of the first guide rib facing the center of the limiting recess. The second guide ramp is inclined towards the center of the limiting recess from the opening of the limiting recess to the bottom wall. Multiple second guide ramps together form a second limiting groove. The limiting protrusion includes a limiting boss located in the middle, the second guide rib is distributed around the periphery of the limiting protrusion, the limiting protrusion is accommodated in the second limiting groove, and at least a portion of the limiting protrusion is configured as a frustum structure, with the small-diameter end of the frustum structure close to the bottom wall of the limiting recess.

12. The air handling equipment according to claim 7, characterized in that, The transmission assembly further includes a dust cover, the drive assembly includes a transmission gear, the screw passes through the dust cover and is connected to the transmission gear, and the dust cover has an avoidance channel on the side away from the filter screen, and the threaded hole is sleeved on the screw through the avoidance channel.

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