Intelligent dust purification treatment device for smart home

Abstract

This invention relates to the technical field of civilian indoor air purifiers, and proposes a smart home dust purification device, including a housing, a filter cartridge rotatably disposed within the housing, inclined blades fixedly connected to the inner wall of the filter cartridge, and a backflush pipe assembly for connecting to a backflush air source. Several inclined blades are evenly distributed along the inner wall of the filter cartridge. Each backflush pipe in the backflush pipe assembly has a backflush nozzle at its end furthest from the backflush air source, used to blow out a strip-shaped airflow. Multiple backflush nozzles are staggered vertically and aligned with the inclined blades to drive the filter cartridge to rotate. The beneficial effects of this invention are: the staggered distribution of multiple backflush nozzles aligned with different heights of the inclined blades allows the backflush airflow to simultaneously impact the blades at each height, generating a tangential torque that drives the filter cartridge to rotate. The rotation of the filter cartridge causes the strip-shaped airflow to sequentially sweep across the entire circumference of the inner wall. Combined with the full vertical coverage by the staggered backflush nozzles, this achieves the goal of improving the uniformity and thoroughness of filter cartridge cleaning.

Description

Technical Field

[0001] This invention relates to the technical field of civilian indoor air purifiers, specifically to a smart home dust purification device. Background Technology

[0002] With increasing public awareness of indoor air quality and the rapid development of smart home technology, smart air purifiers have become an important part of modern homes. Especially during renovations of existing homes, processes such as wall sanding, tile cutting, and carpentry generate large amounts of cement dust, plaster dust, sawdust, and paint aerosols. Indoor dust concentrations can reach tens of thousands of micrograms per cubic meter, far exceeding normal healthy environments. Prolonged exposure to high concentrations of dust can easily lead to respiratory diseases such as pneumoconiosis and allergic rhinitis. Furthermore, the dust from renovations adheres to furniture and appliances, causing environmental pollution and making cleaning difficult. Therefore, using dust purification devices to efficiently purify indoor air during renovations is crucial for protecting the health of construction workers and maintaining environmental cleanliness.

[0003] Existing air purifiers use filters to intercept dust particles in the air. Over time, a large amount of dust accumulates on the filter surface, leading to decreased filtration efficiency, increased air resistance, and higher energy consumption. Therefore, regular cleaning of the filter is necessary. To reduce the frequency of manual cleaning, some air purifiers are equipped with self-cleaning functions. One common one is reverse pulse cleaning technology, which uses compressed air to blow outwards from the inside of the filter in a short burst, using high-pressure airflow to dislodge the dust adhering to the filter surface.

[0004] However, reverse pulse jets typically use single-point or limited-point jet pipes. After the compressed gas is ejected from the nozzle, it diffuses axially along the inside of the filter element. As the gas pressure decreases rapidly with increasing distance, the filter element area near the nozzle receives a greater impact and has a better cleaning effect, while the filter element area far from the nozzle receives a significantly weaker airflow impact, resulting in serious dust residue and poor overall cleaning uniformity. After repeated use, local dust accumulation areas will still form on the filter element surface, affecting purification efficiency and service life. Therefore, a new technical solution is needed to solve the above technical problems. Summary of the Invention

[0005] This application proposes a dust purification device for smart homes. Multiple back-blowing nozzles are staggered vertically and aligned with different heights of inclined blades. The back-blowing airflow simultaneously impacts the blades at each height, generating a tangential torque that drives the filter cartridge to rotate. The rotation of the filter cartridge causes strip-shaped airflow to sweep across the entire inner circumference of the filter cartridge in sequence. Combined with the staggered back-blowing nozzles providing full vertical coverage, this achieves the goal of improving the uniformity and thoroughness of filter cartridge cleaning.

[0006] Therefore, this application provides a dust purification device for smart homes, including a housing, a filter cartridge rotatably disposed within the housing, inclined blades fixedly connected to the inner wall of the filter cartridge, and a backflush pipe assembly for connecting to a backflush air source. The inclined blades are arranged in a plurality of manners, which are evenly distributed along the inner wall of the filter cartridge. The backflush pipe assembly includes a plurality of backflush pipes, each of which is provided with a backflush nozzle for blowing out a strip-shaped airflow at the end away from the backflush air source. The plurality of backflush nozzles are staggered along the vertical direction, and each backflush nozzle is aligned with the inclined blades to drive the filter cartridge to rotate.

[0007] By adopting the above technical solution: multiple back-blowing nozzles of the back-blowing tube assembly are staggered vertically, which can be aligned with the inclined blades at different heights on the inner wall of the filter cartridge. When the back-blowing airflow is ejected from the back-blowing nozzle, the strip-shaped airflow simultaneously impacts different heights of the inclined blades, generating a tangential torque to drive the filter cartridge to rotate as a whole. Since the filter cartridge rotates continuously during the back-blowing process, the strip-shaped airflow ejected from each back-blowing nozzle can sequentially sweep the entire circumference of the inner wall of the filter cartridge. At the same time, the multiple staggered back-blowing nozzles form a full coverage in the vertical direction, thereby overcoming the uneven cleaning defects caused by the rapid axial decay of gas pressure from a single nozzle and the weak impact force at the far end in the existing reverse pulse cleaning technology. The rotation of the filter cartridge makes the contact time between the back-blowing airflow and each area of ​​the inner wall of the filter cartridge tend to be uniform, completely solving the problem of dust residue at the far end, and achieving the goal of improving the uniformity and thoroughness of filter cartridge cleaning.

[0008] Preferably, an installation device for mounting the filter cartridge is provided between the bottom end of the filter cartridge and the housing. The installation device includes an installation plate disposed inside the housing and an installation rod disposed between the installation plate and the housing. The installation plate is used to place the filter cartridge, and the two ends of the installation rod are fixedly connected to the installation plate and the housing, respectively.

[0009] By adopting the above technical solution, the mounting device consisting of the mounting plate and the mounting rod provides a stable bottom support for the filter cartridge, ensuring that the filter cartridge maintains coaxiality during rotation and avoiding airflow leakage or uneven wear of the filter cartridge due to shaking. The mounting device works in conjunction with the backflush pipe assembly that drives the filter cartridge, laying a structural foundation for the smooth rotation of the filter cartridge.

[0010] Preferably, a rotating disk is provided between the mounting plate and the filter cartridge, a rotating shaft is fixedly connected to the mounting plate, the rotating disk is rotatably connected to the rotating shaft, and a plug-in block is provided on the rotating disk. The plug-in block is plugged into the filter cartridge to fix the filter cartridge to the rotating disk.

[0011] By adopting the above technical solution: the rotating disk is rotatably connected to the mounting plate via a rotating shaft, and the filter cartridge is fixed to the rotating disk via a plug-in block, thus realizing a detachable rotating connection between the filter cartridge and the mounting plate; when the backflushing airflow drives the filter cartridge to rotate, the filter cartridge drives the rotating disk to rotate around the rotating shaft together, and the bearing cooperation between the rotating shaft and the rotating disk significantly reduces the rotational friction resistance; the plug-in structure facilitates the quick disassembly and maintenance of the filter cartridge, and forms a smooth mechanical transmission chain with the pneumatic rotation drive, ensuring the flexibility and reliability of the filter cartridge rotation.

[0012] Preferably, a striking unit is provided between the rotating disk and the mounting plate. The striking unit includes a fixed ring sleeved on the outside of the rotating disk, a wedge block fixedly connected to the rotating disk, a sliding block slidably connected to the fixed ring, a striking rod fixedly connected to the sliding block, and a striking head fixedly connected to the striking rod away from the sliding block. The wedge block is used to push the sliding block to slide within the fixed ring. A reset component is provided between the sliding block and the fixed ring to push the sliding block to slide towards the rotating disk. The reset component and the wedge block work together to make the sliding block reciprocate so as to drive the striking head to strike the filter cartridge through the striking rod.

[0013] By adopting the above technical solution: the tapping unit uses the rotational motion of the filter cartridge itself as a power source. When the back-blowing airflow drives the filter cartridge to rotate, the filter cartridge drives the rotating disk to rotate synchronously. The wedge block on the rotating disk rotates with it and periodically pushes the sliding block to slide outward in the fixed ring. The sliding block is quickly reset under the action of the reset component, and the tapping rod drives the tapping head to tap the filter cartridge. This design does not require an additional power source. It only uses the mechanical energy of the filter cartridge rotation to generate periodic tapping vibration and back-blowing airflow to form a dual cleaning linkage: the back-blowing airflow is responsible for blowing away the dust on the filter cartridge, and the tapping vibration is responsible for shaking off the cake-shaped dust attached to the outer wall. The two are carried out synchronously and reinforce each other, which significantly improves the dust removal effect.

[0014] Preferably, the reset assembly includes a guide groove for guiding the sliding trajectory of the sliding block, a guide block fixedly connected to the sliding block, and an elastic element disposed between the sliding block and the fixed ring. The guide groove is opened at the top of the mounting plate, the guide block is located in the guide groove and is slidably connected to the guide groove, and the two ends of the elastic element are fixedly connected to the sliding block and the fixed ring, respectively.

[0015] By adopting the above technical solution: the cooperation between the guide groove and the guide block limits the precise sliding trajectory of the sliding block, and the elastic element provides a stable reset force, ensuring that the sliding block can be quickly and accurately reset after being pushed by the wedge block; the reset component works together with the wedge block to make the tapping frequency and the filter cartridge rotation speed have a strict linear relationship, avoiding tapping loss or unstable tapping force due to untimely reset, and improving the reliability and consistency of the linkage tapping.

[0016] Preferably, the end of the sliding block near the rotating disk is configured as a hemispherical shape.

[0017] By adopting the above technical solution, the end of the sliding block near the rotating disk is set to be hemispherical, which significantly reduces the contact area and frictional resistance between the sliding block and the wedge block, making the process of the wedge block pushing the sliding block smoother and more efficient, reducing mechanical wear and energy loss, and further improving the stability of the striking frequency and the service life of the device.

[0018] Preferably, the top of the housing is provided with a top cover, and the top cover is provided with an outlet pipe that extends into the housing for discharging the filtered gas. One end of the outlet pipe is provided with a rotating sealing assembly between it and the filter cartridge. The end of the backflush pipe assembly away from the backflush gas source passes through the side wall of the outlet pipe and enters the filter cartridge along the outlet pipe.

[0019] By adopting the above technical solution: the air outlet pipe inside the top cover provides an independent discharge channel for the purified gas, and the backflush pipe assembly passes through the pipe wall of the air outlet pipe and enters the interior of the filter cartridge, realizing the structural separation of the backflush air path and the filter cartridge during rotation; the rotating sealing assembly ensures the airtightness between the filter cartridge and the air outlet pipe when rotating, preventing unpurified air from short-circuiting into the air outlet pipe through the rotation gap; this structure works in conjunction with the filter cartridge rotation design to ensure the correct gas flow direction in normal purification mode and to provide an independent delivery channel for the backflush airflow in self-cleaning mode.

[0020] Preferably, the rotary sealing assembly includes a sealing plate fixedly connected to the air outlet pipe and a sealing ring rotatably connected to the air outlet pipe. The sealing plate abuts against the top of the filter cartridge, and the sealing ring is sleeved on the outside of the air outlet pipe and inserted into the filter cartridge.

[0021] By adopting the above technical solution: the sealing plate abuts against the top end face of the filter cartridge to form the first axial seal; the sealing ring is sleeved on the outer wall of the outlet pipe and rotates and seals with the outlet pipe; the sealing ring is inserted and fixed to the top of the filter cartridge and rotates synchronously with the filter cartridge to form the second radial dynamic seal. The double sealing structure effectively blocks gas leakage that may occur due to the rotation gap of the filter cartridge; and works in conjunction with the rotating sealing assembly to ensure that the purified airflow and the backflushing airflow will not crossflow or leak under the conditions of high-speed rotation of the filter cartridge and high-pressure impact of backflushing, thereby improving the sealing reliability and energy utilization efficiency of the device.

[0022] Preferably, the bottom of the housing is provided with a dust collection box for collecting dust, which is threadedly connected to the housing. The side wall of the housing is provided with a waste discharge pipe for discharging backflush airflow and an air intake pipe for drawing in air. The backflush pipe assembly, air intake pipe, waste discharge pipe and air outlet pipe are all equipped with solenoid valves. A treatment device for treating waste gas is provided at the waste discharge pipe. The treatment device includes a treatment box fixedly connected to the waste discharge pipe, a treatment liquid disposed inside the treatment box, a filter cotton disposed above the liquid surface of the treatment liquid, and a treatment pipe fixedly connected to the treatment box. The end of the waste discharge pipe away from the housing is inserted into the treatment box and located below the liquid surface of the treatment liquid. The waste discharge pipe is fixedly connected to the housing. The filter cotton is used to filter the air passing through the treatment liquid, and the treatment pipe is used to discharge the air passing through the filter cotton from the treatment box.

[0023] By adopting the above technical solution: the dust collection box is used to collect the dust that falls off during the self-cleaning process, and the threaded connection makes it easy to disassemble and clean; the exhaust pipe introduces the dust-laden exhaust gas into the treatment box. When the exhaust gas passes through the treatment liquid, the dust is washed and settled, and then further filtered by the filter cotton before being discharged through the treatment pipe, thus achieving the harmless treatment of the desorbed dust; this treatment device, together with the back-blowing cleaning and knocking unit, forms a complete dust treatment closed loop. After the back-blowing cleaning and knocking unit shakes the dust off the filter cartridge, the dust-laden gas is forced by the airflow to the exhaust pipe and filtered through the liquid bath, completely avoiding the impact of secondary dust re-entrainment on the indoor environment.

[0024] Preferably, the system also includes a differential pressure sensor for detecting the pressure difference between the inside and outside of the filter cartridge and a controller. The differential pressure sensor is connected to the controller, which controls the opening and closing of multiple solenoid valves and the fan installed inside the housing. When the differential pressure sensor detects that the pressure difference between the inside and outside of the filter cartridge exceeds a preset threshold, the controller sequentially shuts down the fan, closes the solenoid valves of the inlet pipe and outlet pipe, and opens the solenoid valves of the backflush pipe assembly and the waste discharge pipe. After self-cleaning is completed, the controller sequentially closes the solenoid valves of the backflush pipe assembly and the waste discharge pipe, opens the solenoid valves of the inlet pipe and the outlet pipe, and turns on the fan.

[0025] By adopting the above technical solution: the differential pressure sensor monitors the pressure difference inside and outside the filter cartridge in real time. When the pressure difference exceeds the set threshold, the controller automatically executes the self-cleaning sequence: first, the fan and inlet / outlet air channels are shut off to prevent short circuit of the backflushing airflow; then, the solenoid valves of the backflushing pipe assembly and waste discharge pipe are opened to start backflushing and dust treatment; after cleaning, each valve and fan are restored in sequence. This automated control logic organically integrates the entire processing device into an intelligent system, realizing fully automatic closed-loop self-cleaning of detection, isolation, backflushing driven rotation, linkage knocking, dust treatment, and restoration, without manual intervention, significantly improving the ease of use and environmental adaptability of smart home devices.

[0026] The working principle and beneficial effects of this application are as follows: 1. By setting up a backflush pipe assembly and inclined blades, the multiple backflush nozzles of the backflush pipe assembly are staggered vertically, which can be aligned with the inclined blades at different heights on the inner wall of the filter cartridge. When the backflush airflow is ejected from the backflush nozzles, the strip-shaped airflow simultaneously impacts different heights of the inclined blades, generating a tangential torque that drives the entire filter cartridge to rotate. As the filter cartridge rotates continuously during the backflush process, the strip-shaped airflow ejected from each backflush nozzle can sequentially sweep the entire circumference of the inner wall of the filter cartridge. At the same time, the multiple staggered backflush nozzles form a full coverage in the vertical direction, thereby overcoming the uneven cleaning defects caused by the rapid axial decay of gas pressure from a single nozzle and the weak impact force at the far end in the existing reverse pulse cleaning technology. The rotation of the filter cartridge makes the contact time between the backflush airflow and each area of ​​the inner wall of the filter cartridge tend to be uniform, completely solving the problem of dust residue at the far end, and achieving the goal of improving the uniformity and thoroughness of filter cartridge cleaning.

[0027] 2. By setting up a rotating disk and a tapping unit, the tapping unit uses the rotational motion of the filter cartridge itself as a power source. When the back-blowing airflow drives the filter cartridge to rotate, the filter cartridge drives the rotating disk to rotate synchronously. The wedge-shaped block on the rotating disk rotates with it and periodically pushes the sliding block to slide outward in the fixed ring. The sliding block is quickly reset under the action of the reset component, and the tapping rod drives the tapping head to tap the filter cartridge. This design does not require an additional power source. It only uses the mechanical energy of the filter cartridge rotation to generate periodic tapping vibration and form a dual cleaning linkage with the back-blowing airflow: the back-blowing airflow is responsible for blowing away the dust on the filter cartridge, and the tapping vibration is responsible for shaking off the cake-shaped dust attached to the outer wall. The two are carried out synchronously and reinforce each other, which significantly improves the dust removal effect.

[0028] 3. By setting up a waste discharge pipe and treatment device, the waste discharge pipe guides the dust-laden exhaust gas into the treatment box. When the exhaust gas passes through the treatment liquid, the dust is washed and settled. After further filtration by the filter cotton, it is discharged through the treatment pipe, achieving the harmless treatment of desorbed dust. This treatment device, together with the back-flushing cleaning and knocking unit, forms a complete dust treatment closed loop. After the back-flushing cleaning and knocking unit shakes the dust off the filter cartridge, the dust-laden gas is forced by the airflow to the waste discharge pipe and filtered by the treatment liquid and filter cotton, completely avoiding the impact of secondary dust re-entrainment on the indoor environment. Attached Figure Description

[0029] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] Figure 1 This is a schematic diagram of the structure of a dust purification device for smart homes according to this application; Figure 2 This is a schematic diagram of the internal structure of the dust purification and treatment device of this application; Figure 3 This is a schematic diagram of the backflush tube assembly and inclined blades of this application; Figure 4This application shows a structural schematic diagram of the inclined blade arrangement; Figure 5 This application shows a schematic diagram of the structure of the reset component; Figure 6 This is a schematic diagram of the internal structure of the processing device of this application.

[0031] The technical features in the attached drawings are labeled as follows: 1. Housing; 11. Top cover; 12. Dust collection box; 13. Inlet pipe; 14. Waste discharge pipe; 15. Outlet pipe; 2. Filter cartridge; 3. Inclined blades; 4. Backflush pipe assembly; 5. Mounting device; 51. Mounting plate; 511. Rotating shaft; 52. Mounting rod; 6. Rotating disk; 62. Insertion block; 7. Tapping unit; 71. Fixing ring; 72. Wedge block; 73. Sliding block; 74. Tapping rod; 75. Tapping head; 8. Reset assembly; 81. Guide groove; 82. Guide block; 83. Elastic element; 9. Rotary sealing assembly; 91. Sealing plate; 92. Sealing ring; 10. Treatment device; 101. Treatment box; 102. Filter cotton; 103. Treatment pipe. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1-2 As shown, this embodiment provides a smart home dust purification device, including a housing 1, a filter cartridge 2 rotatably disposed within the housing 1, an inclined blade 3 fixedly connected to the inner wall of the filter cartridge 2, and a backflush pipe assembly 4 for connecting to a backflush air source. The housing 1 has a vertically arranged cylindrical structure. An air inlet pipe 13 for drawing in gas is provided on the side wall of the housing 1, and a waste discharge pipe 14 for discharging backflush airflow is provided on the other side wall of the housing 1. An internal thread is provided at the bottom end of the housing 1 for threaded connection to a dust collection box 12. A top cover 11 is detachably installed at the top end of the housing 1. A silicone rubber sealing ring is provided between the top cover 11 and the housing 1. An air outlet pipe 15 is provided inside the top cover 11, extending into the housing 1 for discharging filtered gas. In this embodiment, the housing 1 is integrally injection molded from ABS engineering plastic. The inner diameter of the air inlet pipe 13 is preferably 50 mm, and a 50-mesh stainless steel coarse filter screen is installed at the air inlet. The inner diameter of the waste discharge pipe 14 is preferably 25 mm, and the air outlet pipe 15 is preferably a round pipe with an inner diameter of 45 mm.

[0034] To enable the filter cartridge 2 to be compatible with the technical solution of this application, this application discloses a filter cartridge 2. The filter wall of the filter cartridge 2 adopts an inner and outer composite folded structure. The filter wall includes an inner support skeleton and a multi-layer folded filter medium covering the outer side of the inner support skeleton. The inner support skeleton is a cylindrical stainless steel galvanized perforated mesh with a wall thickness of 0.8 mm and a porosity greater than 40%. The multi-layer filter medium, from the outside to the inside, consists of: a coarse filter layer made of polyester fiber nonwoven fabric with a folding depth of 3-8 mm; a medium filter layer made of meltblown nonwoven fabric with a folding depth of 10-20 mm; and a high-efficiency filter layer made of PTFE membrane filter material, which forms a HEPA filter layer with a folding depth of 15-25 mm through a multi-layer folding process. The total depth of the filter wall is 25-40 mm. Each filter layer is hot-pressed and bonded to the inner support skeleton to form a self-supporting integral cylindrical structure. In the self-cleaning mode, it can withstand the impact of backflush airflow and the rotational vibration of the filter cartridge 2 without delamination or deformation.

[0035] like Figures 3-4 As shown, the inner wall of the filter cartridge 2 is integrally injection molded with several inclined blades 3. The several inclined blades 3 are evenly distributed along the circumference of the inner wall of the filter cartridge 2. Each inclined blade 3 extends along the axial direction of the filter cartridge 2. The inclined blades 3 are integrally injection molded with the same ABS material as the filter cartridge 2 to ensure connection strength and dimensional accuracy.

[0036] like Figures 3-4 As shown, the backflush pipe assembly 4 includes multiple backflush pipes, each made of stainless steel. One end of each backflush pipe is connected to a backflush air source. A normally closed solenoid valve is installed on the backflush pipe. The other end of each backflush pipe is inserted into the side wall of the outlet pipe 15 and extends along the outlet pipe 15 into the interior of the filter cartridge 2. Each backflush pipe has a backflush nozzle at its end for blowing out a strip-shaped airflow. The backflush nozzle has a flat nozzle structure with a rectangular cross-section at the outlet. The airflow direction of the backflush nozzle is 15°-4° relative to the radial direction of the filter cartridge 2. A tangential deflection angle of 5°; the backflush nozzles of multiple backflush pipes are staggered in vertical height, and each backflush nozzle is aligned with the inclined blade 3 at the corresponding height; in this embodiment, the backflush air source can preferably be a miniature oil-free air compressor, and the backflush pipe group 4 is preferably provided with three backflush pipes, wherein the backflush nozzle of the first backflush pipe is located in the upper part of the hollow channel of the filter cartridge 2, the backflush nozzle of the second backflush pipe is located in the middle part of the hollow channel of the filter cartridge 2, and the backflush nozzle of the third backflush pipe is located in the lower part of the hollow channel of the filter cartridge 2.

[0037] like Figures 2-3As shown, a rotating sealing assembly 9 is provided between the lower end of the air outlet pipe 15 and the filter cartridge 2. The rotating sealing assembly 9 includes a sealing plate 91 fixedly connected to the air outlet pipe 15 and a sealing ring 92 that rotates and seals with the air outlet pipe 15. The sealing plate 91 is an annular stainless steel plate. The sealing plate 91 is fixedly connected to the lower end of the air outlet pipe 15. The lower end face of the sealing plate 91 abuts against the end face of the upper end cap of the filter cartridge 2 to form an axial seal on the end face. The sealing ring 92 is made of polytetrafluoroethylene. The sealing ring 92 is sleeved on the outer wall of the air outlet pipe 15 and rotates and seals with the air outlet pipe 15. A double-lip sealing ring is embedded in the inner wall of the sealing ring 92. The sealing ring 92 is inserted and fixed to the top end of the filter cartridge 2 and rotates synchronously with the filter cartridge 2.

[0038] like Figures 2-3 As shown, an installation device 5 for installing the filter cartridge 2 is provided between the bottom end of the filter cartridge 2 and the housing 1. The installation device 5 includes an installation plate 51 disposed inside the housing 1 and an installation rod 52 disposed between the installation plate 51 and the housing 1. The installation plate 51 is used to place the filter cartridge 2. Several installation rods 52 are provided, each of which is a stainless steel round rod. The two ends of the installation rod 52 are fixedly connected to the installation plate 51 and the housing 1, respectively. In this embodiment, three installation rods 52 are provided and are distributed in an equilateral triangle.

[0039] like Figure 3 and Figure 5 As shown, a rotating disk 6 is provided between the mounting plate 51 and the filter cartridge 2. A rotating shaft 511 is fixedly connected to the center of the mounting plate 51. A shaft hole that mates with the rotating shaft 511 is opened at the center of the rotating disk 6. A deep groove ball bearing is embedded in the shaft hole. The rotating disk 6 is rotatably connected to the rotating shaft 511 through the bearing. A plug-in block 62 is provided on the upper surface of the rotating disk 6. The bottom end of the filter cartridge 2 is plugged into the plug-in block 62. The plug-in block 62 and the filter cartridge 2 are interference-fitted to make the filter cartridge 2 drive the rotating disk 6 to rotate.

[0040] like Figure 3 and Figure 5As shown, a striking unit 7 for dust removal by tapping the filter cartridge 2 is provided between the rotating disk 6 and the mounting plate 51. The striking unit 7 includes a fixing ring 71 sleeved on the outside of the rotating disk 6, a wedge block 72 fixedly connected to the rotating disk 6, a sliding block 73 slidably connected to the fixing ring 71, a striking rod 74 fixedly connected to the sliding block 73, and a striking head 75 fixedly connected to the end of the striking rod 74 away from the sliding block 73. The fixing ring 71 is a stainless steel ring and is fixedly installed on the mounting plate 51. Several wedge blocks 72 are provided, and each wedge block 72 is integrally formed with the outer wall of the rotating disk 6. The sliding block 73 is slidably installed inside the fixing ring 71. The end of the sliding block 73 near the rotating disk 6 is set as a hemispherical shape. The striking rod 74 is a stainless steel round rod. One end of the striking rod 74 is fixedly connected to the sliding block 73, and the other end is fixedly connected to the striking head 75. In this embodiment, the striking head 75 is made of silicone rubber, is hemispherical, has a spherical radius of 5mm, and a hardness of Shore A50.

[0041] like Figure 3 and Figure 5 As shown, a reset assembly 8 is provided between the sliding block 73 and the fixed ring 71 for sliding and resetting the sliding block 73 within the fixed ring 71. The reset assembly 8 includes a guide groove 81 formed at the top of the mounting plate 51, a guide block 82 fixedly connected to the sliding block 73, and an elastic member 83 disposed between the sliding block 73 and the fixed ring 71. The guide groove 81 extends radially along the fixed ring 71. The guide block 82 is fixedly connected to the bottom of the sliding block 73 and is embedded in the guide groove 81 and slides in cooperation with the guide groove 81. One end of the elastic member 83 is fixedly connected to the sliding block 73, and the other end is fixedly connected to the inner wall of the fixed ring 71. In this embodiment, the elastic element 83 is preferably a helical compression spring, which is made of stainless steel wire. In order to improve the service life of the equipment, a dust cover 20 is fixedly connected to the top of the fixing ring 71. The dust cover 20 is sleeved on the outside of the filter cartridge 2 and rotatably connected to the filter cartridge 2. The dust cover 20 is used to reduce dust from entering the groove formed by the mounting plate 51 and the fixing ring 71. It is preferred that the dust cover 20 is set in a conical shape so that the dust knocked off the filter element 2 can enter the dust collection box 12 along the dust cover. In order to facilitate the sliding of the striking rod 74, a through hole is provided on the dust cover 20 to allow the striking rod 74 to slide. A dustproof film is provided in the through hole. The dustproof film is preferably made of plastic. The dustproof film does not affect the sliding of the striking rod 74 and can prevent dust from entering the dust cover through the through hole.

[0042] The top cover 11 of the housing 1 is also equipped with a solenoid valve for opening and closing the air outlet pipe 15. The solenoid valve is located in the upper section of the air outlet pipe 15, above the insertion position of the backflush pipe assembly 4, and is used to close the air outlet pipe 15 in self-cleaning mode. The solenoid valve is an electromagnetically driven flap valve, including a rotatable flap, a micro motor that drives the flap to rotate, and a sealing ring. When the flap is open, it is parallel to the inner wall of the air outlet pipe 15, and when it is closed, it is perpendicular to the inner wall of the air outlet pipe 15.

[0043] like Figure 3 and Figure 6 As shown, a treatment device 10 for treating waste gas is installed at the waste discharge pipe 14. The treatment device 10 includes a treatment box 101 fixedly connected to the waste discharge pipe 14, a treatment liquid disposed inside the treatment box 101, a filter cotton 102 disposed above the liquid surface of the treatment liquid, and a treatment pipe 103 fixedly connected to the treatment box 101. The treatment box 101 is made of transparent acrylic material, and a liquid inlet is provided at the top of the treatment box 101. The end of the waste discharge pipe 14 away from the housing 1 is inserted from the top of the treatment box 101, with the pipe opening located 15mm below the liquid surface of the treatment liquid. A filter screen is provided below the filter cotton 102, and the filter screen is fixed inside the treatment box 101 to support the filter cotton 102. The treatment pipe 103 is fixedly connected to the exhaust port at the top of the treatment box 101. In this embodiment, the treatment liquid is preferably pure water, and the filter cotton 102 is preferably polyurethane sponge, disposed 10mm above the liquid surface of the treatment liquid.

[0044] This device also includes a differential pressure sensor for detecting the pressure difference between the inside and outside of the filter cartridge 2 and a controller. The two pressure-sensing ports of the differential pressure sensor are connected to the inner and outer sides of the filter cartridge 2 via silicone hoses, respectively. The controller is electrically connected to the differential pressure sensor, the solenoid valve of the inlet pipe 13, the solenoid valve of the exhaust pipe 14, the solenoid valve of the backflush pipe group 4, the solenoid valve of the exhaust pipe 15, and the fan drive circuit inside the housing 1. In this embodiment, the fan is preferably a centrifugal fan, which can also be used as the backflush air source for the backflush pipe group. When the differential pressure sensor detects that the pressure difference between the inside and outside of the filter cartridge 2 exceeds the preset threshold of 300Pa, the controller automatically executes a self-cleaning program: first, the fan is turned off, and the solenoid valves of the inlet pipe 13 and the exhaust pipe 15 are closed. After a delay of 0.5 seconds, the solenoid valves of the backflush pipe group 4 and the exhaust pipe 14 are opened. After the backflush air source continuously supplies air for 90 seconds, the self-cleaning is completed. The controller then closes the solenoid valves of the backflush pipe group 4 and the exhaust pipe 14, opens the solenoid valves of the inlet pipe 13 and the exhaust pipe 15, and resumes fan operation.

[0045] The basic principle of this embodiment is as follows: In normal purification mode, the solenoid valves of the air inlet pipe 13 and the air outlet pipe 15 of the fan are opened, and the solenoid valves of the backflush pipe group 4 and the waste discharge pipe 14 are closed. The dust-laden air enters the housing 1 from the air inlet pipe 13, passes through the filter wall from the outside of the filter cartridge 2 and enters the inside of the filter cartridge 2, and is discharged through the air outlet pipe 15. The dust is intercepted on the outer wall of the filter cartridge 2. When the differential pressure sensor detects that the pressure difference between the inside and outside of filter cartridge 2 exceeds the preset threshold of 300Pa, the controller automatically starts the self-cleaning mode: first, the fan is turned off, and the solenoid valves of the inlet pipe 13 and the outlet pipe 15 are closed. Then, the solenoid valves of the backflush pipe assembly 4 and the waste discharge pipe 14 are opened. The backflush air source provides 0.5MPa high-pressure gas, which is sprayed out from multiple staggered backflush nozzles through the backflush pipe assembly 4. The strip-shaped airflow simultaneously impacts multiple parts of the inclined blades 3 on the inner wall of filter cartridge 2, generating a tangential torque to drive the filter cartridge 2 to rotate as a whole. At the same time, the airflow passes through the filter wall and blows the dust off the inner wall. When the filter cartridge 2 rotates, it drives the rotating disk 6 to rotate synchronously. The wedge block 72 on the rotating disk 6 rotates with it and periodically pushes the sliding block 73 to slide outward. The sliding block 73 returns to its original position. Under the action of the spring, it quickly resets and moves closer to the rotating disk 6. The sliding block 73 drives the striking rod 74 to move closer to or away from the filter cartridge 2. The striking rod 74 drives the striking head 75 to strike the outer wall of the filter cartridge 2 at a certain frequency, shaking off the cake-shaped dust adhering to the outer wall. The large dust particles that fall off fall into the dust collection box 12 under the action of gravity. At the same time, the small dust particles are carried by the back-blowing airflow, causing the dust-laden exhaust gas to be introduced into the treatment device 10 through the exhaust pipe 14. After the exhaust gas is washed by the treatment liquid and filtered by the filter cotton 102, it is discharged from the treatment pipe 103, realizing the harmless treatment of dust. After the self-cleaning lasts for 90 seconds, the controller closes the solenoid valves of the back-blowing pipe group 4 and the exhaust pipe 14, opens the solenoid valves of the air inlet pipe 13 and the air outlet pipe 15, restores the operation of the fan, and the device returns to the normal purification mode.

[0046] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dust purification and treatment device for smart homes, characterized in that, The filter includes a housing (1), a filter cartridge (2) rotatably disposed within the housing (1), an inclined blade (3) fixedly connected to the inner wall of the filter cartridge (2), and a backflush pipe assembly (4) for connecting to a backflush air source. The inclined blade (3) is provided in several units, and the several inclined blades (3) are evenly distributed along the inner wall of the filter cartridge (2). The backflush pipe assembly (4) includes several backflush pipes. Each backflush pipe is provided with a backflush nozzle for blowing out a strip-shaped airflow at the end away from the backflush air source. The several backflush nozzles are staggered along the vertical direction, and each backflush nozzle is aligned with the inclined blade (3) to drive the filter cartridge (2) to rotate.

2. The dust purification device for smart homes according to claim 1, characterized in that, An installation device (5) for installing the filter cartridge (2) is provided between the bottom end of the filter cartridge (2) and the housing (1). The installation device (5) includes an installation plate (51) provided inside the housing (1) and an installation rod (52) provided between the installation plate (51) and the housing (1). The installation plate (51) is used to place the filter cartridge (2), and the two ends of the installation rod (52) are fixedly connected to the installation plate (51) and the housing (1) respectively.

3. The dust purification and treatment device for smart homes according to claim 2, characterized in that, A rotating disk (6) is provided between the mounting plate (51) and the filter cartridge (2). A rotating shaft (511) is fixedly connected to the mounting plate (51). The rotating disk (6) is rotatably connected to the rotating shaft (511). A plug-in block (62) is provided on the rotating disk (6). The plug-in block (62) is plugged into the filter cartridge (2) to fix the filter cartridge (2) to the rotating disk (6).

4. A dust purification and treatment device for smart homes according to claim 3, characterized in that, A striking unit (7) is provided between the rotating disk (6) and the mounting plate (51). The striking unit (7) includes a fixing ring (71) sleeved on the outside of the rotating disk (6), a wedge block (72) fixedly connected to the rotating disk (6), a sliding block (73) slidably connected to the fixing ring (71), a striking rod (74) fixedly connected to the sliding block (73), and a striking head (75) fixedly connected to the striking rod (74) away from the sliding block (73). The wedge block (72) is used to push the sliding block (73) to slide inside the fixing ring (71). A reset component (8) is provided between the sliding block (73) and the fixing ring (71) for pushing the sliding block (73) to slide towards the rotating disk (6). The reset component (8) and the wedge block (72) work together to make the sliding block (73) reciprocate to drive the striking head (75) to strike the filter cartridge (2) through the striking rod (74).

5. A dust purification and treatment device for smart homes according to claim 4, characterized in that, The reset assembly (8) includes a guide groove (81) for guiding the sliding trajectory of the sliding block (73), a guide block (82) fixedly connected to the sliding block (73), and an elastic member (83) disposed between the sliding block (73) and the fixing ring (71). The guide groove (81) is opened at the top of the mounting plate (51), the guide block (82) is located in the guide groove (81) and is slidably connected to the guide groove (81), and the two ends of the elastic member (83) are fixedly connected to the sliding block (73) and the fixing ring (71) respectively.

6. A dust purification and treatment device for smart homes according to claim 5, characterized in that, The end of the sliding block (73) near the rotating disk (6) is set to be hemispherical.

7. A dust purification and treatment device for smart homes according to claim 1, characterized in that, The top of the housing (1) is provided with a top cover (11), and the top cover (11) is provided with an outlet pipe (15) that extends into the housing (1) for discharging filtered gas. A rotating sealing assembly (9) is provided between one end of the outlet pipe (15) and the filter cartridge (2). The end of the backflush pipe assembly (4) away from the backflush gas source passes through the side wall of the outlet pipe (15) and enters the filter cartridge (2) along the outlet pipe (15).

8. A dust purification and treatment device for smart homes according to claim 7, characterized in that, The rotating sealing assembly (9) includes a sealing plate (91) fixedly connected to the air outlet pipe (15) and a sealing ring (92) rotatably connected to the air outlet pipe (15). The sealing plate (91) abuts against the top of the filter cartridge (2), and the sealing ring (92) is sleeved on the outside of the air outlet pipe (15) and inserted into the filter cartridge (2).

9. A dust purification and treatment device for smart homes according to claim 1, characterized in that, The bottom end of the housing (1) is provided with a dust collection box (12) for collecting dust. The dust collection box (12) is threadedly connected to the housing (1). The side wall of the housing (1) is provided with a waste discharge pipe (14) for discharging backflush airflow and an air intake pipe (13) for drawing in gas. The backflush pipe assembly (4), air intake pipe (13), waste discharge pipe (14) and air outlet pipe (15) are all provided with solenoid valves. A treatment device (10) for treating waste gas is provided at the waste discharge pipe (14). The treatment device (10) includes a treatment box (14) fixedly connected to the waste discharge pipe (14). 101) The treatment liquid is set inside the treatment box (101), the filter cotton (102) is set above the liquid surface of the treatment liquid, and the treatment pipe (103) is fixedly connected to the treatment box (101). The end of the waste pipe (14) away from the shell (1) is inserted into the treatment box (101) and located below the liquid surface of the treatment liquid. The waste pipe (14) is fixedly connected to the shell (1). The filter cotton (102) is used to filter the air that has passed through the treatment liquid. The treatment pipe (103) is used to discharge the air that has passed through the filter cotton (102) out of the treatment box (101).

10. A dust purification and treatment device for smart homes according to claim 1, characterized in that, It also includes a differential pressure sensor for detecting the pressure difference inside and outside the filter cartridge (2) and a controller. The differential pressure sensor is connected to the controller. The controller is used to control the opening and closing of multiple solenoid valves and the fan installed in the housing (1). When the differential pressure sensor detects that the pressure difference inside and outside the filter cartridge (2) exceeds the preset threshold, the controller sequentially executes to shut down the fan, shut down the solenoid valves of the air inlet pipe (13) and the air outlet pipe (15), and open the solenoid valves of the backflush pipe assembly (4) and the waste discharge pipe (14). After the self-cleaning is completed, the controller sequentially executes to shut down the solenoid valves of the backflush pipe assembly (4) and the waste discharge pipe (14), open the solenoid valves of the air inlet pipe (13) and the air outlet pipe (15), and turn on the fan.

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