Heating and ventilation treatment device with air purification function

Abstract

The invention provides a heating and ventilation treatment device with an air purification function, and relates to the technical field of heating and ventilation air conditioning systems. Comprising a treatment box unit, the treatment box unit comprises a purification filter box, the bottom of the purification filter box is fixedly connected with a collection box, the upper portion of one side of the purification filter box communicates with an air outlet pipe, and the lower portion of one side of the purification filter box communicates with an air inlet pipe; a frame body is fixedly connected into the purification filter box, and two filter screens are symmetrically and fixedly connected to the frame body in a penetrating manner; a cleaning unit, a covering unit and a reverse blowing unit are mounted on the treatment box unit; according to the device, the electric cylinder of the driving component serves as a power source, the driving frame is driven by the electric cylinder to do linear movement, the air outlet pipe and the air inlet pipe are blocked by the valve component, meanwhile, the blocking plate is opened to relieve blocking of the dust inlet, and then the dust cleaning component conducts mechanical dust cleaning on the filter screen; and the linkage action of high-pressure back flushing of the back flushing unit on the filter screen is achieved, manual step-by-step operation is not needed, and the operation convenience of dust removal operation is improved.

Description

Technical Field

[0001] This invention relates to the technical field of heating, ventilation and air conditioning systems, and more particularly to a heating, ventilation and air conditioning treatment device with air purification function. Background Technology

[0002] As the core equipment for controlling the indoor environment of buildings, heating, ventilation, and air conditioning systems are widely used in various places such as residential buildings, commercial buildings, and industrial plants. In addition to regulating indoor temperature and humidity, air purification is also an important part of modern HVAC systems and is key to ensuring indoor air quality. In the air purification module of HVAC systems, the filter is the core purification component. Through the physical interception of the filter, it can effectively filter particulate matter, dust and other impurities in the air, preventing pollutants from entering the room with the airflow, and playing an irreplaceable role in creating a clean indoor air environment.

[0003] Currently, the filters in HVAC systems with air purification functions are typically installed directly inside the internal cavity of the device, in a relatively concealed location. They are usually fixed to the internal structure using clips or bolts. The filters are confined within the enclosed space, making it difficult for staff to quickly remove them for cleaning and maintenance. Because disassembling and cleaning the filters is cumbersome, time-consuming, and labor-intensive, staff often find it difficult to clean them regularly. Over time, a large amount of dust and impurities accumulate on the filter surface, clogging the pores and significantly reducing airflow efficiency, thus affecting ventilation and degrading the performance of the HVAC system. Therefore, it is necessary to provide an HVAC system with air purification functions to solve these technical problems. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a heating and ventilation treatment device with air purification function.

[0005] The present invention provides a heating and ventilation treatment device with air purification function, including a treatment box unit, the treatment box unit including a purification filter box, a collection box fixedly connected to the bottom of the purification filter box, an air outlet pipe connected to the upper part of one side of the purification filter box, and an air inlet pipe connected to the lower part of one side of the purification filter box.

[0006] The purification filter box is fixedly connected to a frame, and two filter screens are symmetrically and fixedly connected through the frame.

[0007] The processing box unit is equipped with a cleaning unit, a cover unit, and a backflushing unit;

[0008] The cleaning unit is used to clean the lower surface of the filter screen, and the air outlet and air inlet pipes are sealed before cleaning.

[0009] The cover unit is used to connect the purification filter box and the collection box during dust removal, so that the dust generated during dust removal falls into the collection box for collection.

[0010] The back-blowing unit is used to back-blow the filter screen while the cleaning unit is cleaning the dust, thereby enhancing the dust cleaning effect.

[0011] Preferably, the cleaning unit includes a drive component, a dust removal component, and a valve component; the drive component includes a mounting frame, which is fixedly connected to the outer wall of the purification filter box, an electric cylinder is fixedly mounted on the mounting frame, one end of the electric cylinder is fixedly connected to a drive frame, a rack is fixedly connected to the side wall of the drive frame, a T-shaped slide bar is fixedly connected to the top of the drive frame, a T-shaped slide groove adapted to the T-shaped slide bar is opened at the bottom of the mounting frame, the T-shaped slide bar is slidably disposed in the T-shaped slide groove, and a horizontal guide groove and an oblique guide groove are provided through the drive frame, one end of the horizontal guide groove is connected to the top end of the oblique guide groove.

[0012] Preferably, the dust removal component includes an installation channel that extends horizontally through the frame. A dust removal brush is located at the bottom of the frame, with its upper surface adhering to the lower surface of the filter screen. A vertical shaft is rotatably connected within the installation channel, with a first bevel gear fixedly connected to its top end. The bottom end of the vertical shaft passes through the frame and is fixedly connected to the top of the dust removal brush. A horizontal rotating shaft is located within the installation channel, with both ends extending outwards through the purification filter box. A spur gear is fixedly connected to one end of the horizontal rotating shaft, meshing with a rack. A second bevel gear is fixedly fitted onto the outer side of the horizontal rotating shaft, meshing with the first bevel gear. A fixing strip is fixedly connected to the outer wall of the purification filter box, with a disc fixedly connected to one end of the fixing strip. A coil spring is located on the inner side of the disc, with one end fixedly connected to the inner wall of the disc and the other end fixedly connected to the outer wall of the horizontal rotating shaft.

[0013] Preferably, the valve component includes a valve plate mounting cavity, which is located inside the purification filter box and connected to both the air outlet pipe and the air inlet pipe. A circular valve plate is rotatably connected to the valve plate mounting cavity. A horizontal rotating pipe is fixedly connected to the center of the circular valve plate. The horizontal rotating pipe is movably sleeved on the outside of the horizontal rotating shaft. One end of the horizontal rotating pipe extends through the purification filter box and is fixedly sleeved with a first connecting strip. A first eccentric wheel is rotatably connected to the end of the first connecting strip away from the first bevel gear. The first eccentric wheel is slidably disposed inside the bottom end of the inclined guide groove, and both the horizontal guide groove and the inclined guide groove are adapted to the first eccentric wheel. Two symmetrically arranged connecting holes are transversely opened through the circular valve plate. One of the connecting holes corresponds to the inlet end of the air outlet pipe, and the other connecting hole corresponds to the outlet end of the air inlet pipe.

[0014] Preferably, the closing unit includes a transmission component and a cover plate component; the transmission component includes a sliding sleeve, which is fixedly connected to the outer wall of the purification filter box, and a lifting frame is vertically slidably connected through the sliding sleeve. Two oblique guide elongated holes are symmetrically opened on both sides of the lower part of the lifting frame, and a horizontal elongated hole is opened through the upper part of the lifting frame. A second connecting strip is fixedly sleeved on the outer side of the horizontal rotating tube, and a second eccentric wheel is rotatably connected to the end of the second connecting strip away from the horizontal rotating tube. The second eccentric wheel is slidably disposed in the horizontal elongated hole, and the horizontal elongated hole is adapted to the second eccentric wheel.

[0015] Preferably, the cover plate component includes sealing plates, two of which are symmetrically arranged. A flip shaft is fixedly connected to one side of each of the two sealing plates. The flip shaft is rotatably connected inside the collection box, and one end of the flip shaft extends out of the collection box and is fixedly connected to a connecting rod. A third eccentric wheel is rotatably connected to the end of the connecting rod away from the flip shaft. The third eccentric wheel corresponds to and is adapted to the oblique guide elongated hole. The third eccentric wheel is slidably arranged in the corresponding oblique guide elongated hole. Two ash inlets are symmetrically opened on the top of the collection box. The two ash inlets are corresponding to the two sealing plates. The sealing plates cover the ash inlets and form a seal.

[0016] Preferably, the backflushing unit includes a reciprocating backflushing component and a one-way valve component; the reciprocating backflushing component includes an outer cylinder, which is fixedly connected to the other side of the purification filter box. A piston is slidably connected to the inner side of the outer cylinder. A hinge rod is hinged to the middle of one side of the piston. A horizontal sliding rod is symmetrically fixedly connected to one side of the piston. Several horizontal sliding rods are provided and are slidably connected to the outer cylinder. A vertical rotating rod is rotatably connected to the outer side of the outer cylinder. A protrusion is fixedly connected to the top of the vertical rotating rod. An eccentric column is fixedly connected to one end of the protrusion. The end of the hinge rod away from the piston is rotatably sleeved on the outside of the eccentric column. A worm gear is fixedly connected to the bottom end of the vertical rotating rod. A worm is fixedly connected to the other end of the horizontal rotating shaft. The worm meshes with the worm gear.

[0017] Preferably, the one-way valve component includes a fixing block fixedly connected to the other side of the piston. A vent is provided through the piston, with two symmetrically arranged vents. A protruding edge is provided inside each vent, and a one-way plate is provided inside each vent. A pin is fixedly connected to one side of the one-way plate, and both ends of the pin are rotatably connected to the inner wall of the vent. One side of the one-way plate is in contact with the protruding edge, and a spring plate is provided on the other side of the one-way plate. One end of the spring plate is fixedly connected to the other side of the one-way plate, and the other end of the spring plate is fixedly connected to the side wall of the fixing block. A second dust filter is fixedly installed on the inner side of the protruding edge.

[0018] Preferably, the top of the collection box has a through-hole for mounting, and a first dust filter is fixedly installed in the mounting hole.

[0019] Preferably, the centerline of the transverse guide groove is parallel to the length direction of the rack.

[0020] Compared with related technologies, the HVAC treatment device with air purification function provided by the present invention has the following beneficial effects:

[0021] 1. During dust removal, the dust removal brush of the dust removal component in the cleaning unit adheres to the lower surface of the filter screen and rotates synchronously with the vertical axis, mechanically brushing away dust from the lower surface of the filter screen. Simultaneously, the worm gear of the reciprocating back-blowing component drives the worm wheel to rotate the vertical rotating rod, which in turn drives the piston to slide reciprocally in the outer cylinder via the eccentric column and hinged rod. This, combined with the opening and closing of the one-way plate of the one-way valve component, creates a high-pressure back-blowing airflow that reverses the dust flow from the filter screen. This dual dust removal method improves the removal effect of dust adhering to the filter screen, effectively reducing the impact of dust clogging on the air purification and ventilation effects of the device. This reduces the number of times personnel need to disassemble and clean the filter screen, ensuring the filtration effect of the filter screen and thus guaranteeing the ventilation effect of the HVAC system.

[0022] 2. During dust removal, the sealing plate of the cover unit rotates around the flipping shaft to separate from the ash inlet of the collection box, connecting the purification filter box and the collection box. The dust falling off during dust removal falls into the collection box under gravity through the ash inlet for centralized collection, preventing dust from accumulating inside the purification filter box. The circular valve plate of the valve component can seal the air outlet and air inlet pipes to prevent dust from escaping from the air inlet pipe during dust removal, and at the same time prevent high-pressure airflow from leaking out of the air outlet and air inlet pipes during backflushing. During normal ventilation, the sealing plate tightly covers the ash inlet to prevent airflow from leaking from the ash inlet in the purification filter box, ensuring the ventilation effect of the device.

[0023] 3. This device uses the electric cylinder of the drive component as the power source. The electric cylinder drives the drive frame to move linearly, so that while the valve component blocks the air outlet and air inlet pipes, the sealing plate opens to release the blockage of the ash inlet. Subsequently, the ash cleaning component mechanically cleans the filter screen, and the back-blowing unit performs high-pressure back-blowing on the filter screen in a coordinated action. No manual step-by-step operation is required, which improves the convenience of the ash cleaning operation. Attached Figure Description

[0024] Figure 1 A schematic diagram of the overall structure of the HVAC treatment device with air purification function provided by the present invention;

[0025] Figure 2 This is another perspective view of the HVAC treatment device with air purification function in this invention;

[0026] Figure 3This is an overall cross-sectional view of the HVAC treatment device with air purification function in this invention;

[0027] Figure 4 This is an enlarged view of point A in this invention;

[0028] Figure 5 This is a schematic diagram of the drive frame structure in this invention;

[0029] Figure 6 This is a schematic diagram of the structure at the vertical axis in this invention;

[0030] Figure 7 This is a schematic diagram of the structure at the horizontal rotation axis in this invention;

[0031] Figure 8 This is a cross-sectional view of the frame in this invention;

[0032] Figure 9 This is a schematic diagram of the structure of the circular valve plate in this invention;

[0033] Figure 10 This is a schematic diagram of the lifting frame structure in this invention;

[0034] Figure 11 This is a schematic diagram of the piston structure in this invention;

[0035] Figure 12 This is a schematic diagram of the one-way plate in this invention;

[0036] Figure 13 This is a cross-sectional view of the collection box in this invention.

[0037] The diagram shows the following markings: 1. Processing unit; 101. Purification filter box; 102. Collection box; 1021. First dust filter; 103. Exhaust duct; 104. Inlet duct; 105. Frame; 106. Filter; 2. Cleaning unit; 21. Drive unit; 211. Mounting bracket; 212. Electric cylinder; 213. Drive frame; 214. T-shaped slide rail; 215. T-shaped slide bar; 216. Horizontal guide groove; 217. 218. Inclined guide groove; 22. Rack; 22. Dust removal component; 221. Installation channel; 222. Horizontal rotating shaft; 223. Vertical shaft; 224. First bevel gear; 225. Second bevel gear; 226. Spur gear; 227. Fixing strip; 228. Disc; 229. Coil spring; 2210. Dust removal brush; 23. Valve component; 231. Valve plate mounting cavity; 232. Circular valve plate; 233. Connecting hole; 234. Horizontal rotating tube; 235. First connecting strip; 236. First eccentric wheel; 3. Covering unit; 31. Transmission component; 311. Lifting frame; 312. Slanted guide elongated hole; 313. Horizontal elongated hole; 314. Second connecting strip; 315. Second eccentric wheel; 316. Sliding sleeve; 32. Cover plate component; 321. Sealing plate; 322. Tilting shaft; 323. Connecting rod; 324. Third eccentric wheel; 325. Ash inlet; 4. Backflushing unit; 41. Reciprocating backflushing component; 411. Outer cylinder; 412. Vertical rotating rod; 413. Worm gear; 414. Worm wheel; 415. Protrusion; 416. Eccentric column; 417. Hinge rod; 418. Piston; 419. Horizontal sliding rod; 42. One-way valve component; 421. Fixing block; 422. Vent; 423. Raised edge; 424. One-way plate; 425. Spring plate; 426. Pin; 427. Second dust filter. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] Example 1

[0040] Please refer to the following: Figures 1 to 9A heating, ventilation, and air conditioning (HVAC) treatment device with air purification function includes a treatment box unit 1. The treatment box unit 1 includes a purification filter box 101. A collection box 102 is fixedly connected to the bottom of the purification filter box 101. An air outlet pipe 103 is connected to the upper part of one side of the purification filter box 101, and an air inlet pipe 104 is connected to the lower part of one side of the purification filter box 101. A frame 105 is fixedly connected inside the purification filter box 101, and the frame 105 is located between the air outlet pipe 103 and the air inlet pipe 104. Two filter screens 106 are symmetrically and fixedly connected through the frame 105. The lower surface of the filter screen 106 is flush with the lower surface of the frame 105; the processing box unit 1 is equipped with a cleaning unit 2, a covering unit 3 and a back-blowing unit 4; the cleaning unit 2 is used to clean the lower surface of the filter screen 106, and to block the air outlet duct 103 and the air inlet duct 104 before cleaning; the covering unit 3 is used to connect the purification filter box 101 and the collection box 102 during cleaning, so that the dust generated during cleaning falls into the collection box 102 for collection; the back-blowing unit 4 is used to back-blow the filter screen 106 while the cleaning unit 2 is cleaning, to enhance the cleaning effect.

[0041] In the above, the air inlet pipe 104 and the air outlet pipe 103 respectively enable the air to be purified to enter and the purified air to be discharged, forming an orderly airflow channel. The frame 105 provides stable fixed support for the two filters 106, ensuring the structural stability of the filters 106 during airflow and dust removal. The filters 106 can effectively intercept particulate matter and impurities in the air to complete air purification.

[0042] Furthermore, the cleaning unit 2 includes a drive component 21, a dust removal component 22, and a valve component 23. The drive component 21 includes a mounting frame 211, which is fixedly connected to the outer wall of the purification filter box 101. An electric cylinder 212 is fixedly mounted on the mounting frame 211. One end of the electric cylinder 212 is fixedly connected to a drive frame 213. A rack 218 is fixedly connected to the side wall of the drive frame 213. A T-shaped slide bar 215 is fixedly connected to the top of the drive frame 213. A T-shaped groove 214 adapted to the T-shaped slide bar 215 is opened at the bottom of the mounting frame 211. The T-shaped slide bar 215 is slidably disposed in the T-shaped groove 214. A horizontal guide groove 216 and an oblique guide groove 217 are opened through the drive frame 213. One end of the horizontal guide groove 216 is connected to the top end of the oblique guide groove 217. The center line of the horizontal guide groove 216 is parallel to the length direction of the rack 218.

[0043] In the above, the mounting bracket 211 provides a stable mounting base for the electric cylinder 212. The electric cylinder 212 drives the drive frame 213 to move linearly, providing power for the subsequent actions of various components. The sliding cooperation between the T-shaped slide bar 215 and the T-shaped slide groove 214 provides precise guidance for the movement of the drive frame 213 and limits its movement trajectory to prevent deviation and shaking. The rack 218 engages and disengages with the spur gear 226 as the drive frame 213 moves, thereby transmitting the rotational power for dust removal. The horizontal guide groove 216 and the oblique guide groove 217 provide different motion guide paths for the first eccentric wheel 236.

[0044] Furthermore, the dust removal component 22 includes an installation channel 221, which is horizontally opened through the frame 105. A dust removal brush 2210 is provided at the bottom of the frame 105. The length of the dust removal brush 2210 is sufficient to cover two filter screens 106. The upper surface of the dust removal brush 2210 is in contact with the lower surface of the filter screen 106. A vertical shaft 223 is rotatably connected inside the installation channel 221, and the vertical shaft 223 is rotatably connected to the frame 105 through a sealed bearing. The vertical shaft 223 is perpendicular to the frame 105. A first bevel gear 224 is fixedly connected to the top of the vertical shaft 223. The bottom end of the vertical shaft 223 passes through the frame 105 and is fixedly connected to the top of the dust removal brush 2210. A horizontal rotating shaft 222 is provided inside the installation channel 221. Both ends of 2 extend outward through the purification filter box 101, and the horizontal rotating shaft 222 is rotatably connected to the purification filter box 101 through a sealed bearing. One end of the horizontal rotating shaft 222 is fixedly connected to a spur gear 226, which meshes with the rack 218 when in contact. A second bevel gear 225 is fixedly sleeved on the outer side of the horizontal rotating shaft 222, which meshes with the first bevel gear 224. A fixing strip 227 is fixedly connected to the outer wall of the purification filter box 101. One end of the fixing strip 227 is fixedly connected to a disc 228. A coil spring 229 is provided on the inner side of the disc 228. One end of the coil spring 229 is fixedly connected to the inner wall of the disc 228, and the other end of the coil spring 229 is fixedly connected to the outer wall of the horizontal rotating shaft 222.

[0045] In the above description, the close contact between the cleaning brush 2210 and the lower surface of the filter screen 106 enables effective brushing of dust accumulation on the lower surface of the filter screen 106 through rotation. The meshing of the first bevel gear 224 and the second bevel gear 225 realizes the conversion of the horizontal rotation of the horizontal shaft 222 to the vertical rotation of the vertical shaft 223, adapting to the dust cleaning requirements of the cleaning brush 2210. The meshing of the spur gear 226 and the rack 218 can convert the linear power of the drive frame 213 into the rotational power of the horizontal shaft 222. The fixing bar 227 and the disc 228 provide stable installation support for the coil spring 229. The coil spring 229 completes elastic energy storage as the horizontal shaft 222 rotates, and completely releases elastic potential energy after the rack 218 disengages from the spur gear 226, so that the horizontal shaft 222 does not easily rotate when it is in the reset position.

[0046] Furthermore, the valve component 23 includes a valve plate mounting cavity 231, which is located inside the purification filter box 101 and is connected to both the air outlet pipe 103 and the air inlet pipe 104. A circular valve plate 232 is rotatably connected to the valve plate mounting cavity 231. A horizontal rotating pipe 234 is fixedly connected to the center of the circular valve plate 232. The horizontal rotating pipe 234 is movably sleeved on the outside of the horizontal rotating shaft 222. One end of the horizontal rotating pipe 234 passes through the purification filter box 101, extends to the outside, and is fixedly sleeved with a first connecting strip 2. 35. The first connecting bar 235 is rotatably connected to the end away from the first bevel gear 224 with a first eccentric wheel 236. The first eccentric wheel 236 is slidably disposed on the inner side of the bottom end of the inclined guide groove 217, and both the horizontal guide groove 216 and the inclined guide groove 217 are adapted to the first eccentric wheel 236. Two symmetrically arranged connecting holes 233 are opened horizontally through the circular valve plate 232. One connecting hole 233 corresponds to the inlet end of the air outlet pipe 103, and the other connecting hole 233 corresponds to the outlet end of the air inlet pipe 104.

[0047] In the above description, valve component 23 achieves sealing of the outlet pipe 103 and inlet pipe 104 before dust removal. Valve plate mounting cavity 231 provides adaptation space for the rotation and sealing of circular valve plate 232. The sealing and rotational engagement of circular valve plate 232 allows it to achieve the correspondence or misalignment of the connecting hole 233 with the outlet pipe 103 and inlet pipe 104 through its own rotation, thereby realizing the on / off control of the airflow channel. Horizontal rotating pipe 234 is movably sleeved on the outside of horizontal rotating shaft 222, ensuring that it can rotate with the movement of the first eccentric wheel 236. At the same time, it will not affect the independent rotation of the horizontal rotating shaft 222. The first connecting strip 235 realizes the power transmission between the horizontal rotating tube 234 and the first eccentric wheel 236, converting the linear movement of the drive frame 213 into the rotational power of the horizontal rotating tube 234. The matching sliding of the first eccentric wheel 236 with the inclined guide groove 217 and the horizontal guide groove 216 can realize the step-by-step rotation and positioning of the circular valve plate 232. When the two connecting holes 233 correspond to the air outlet pipe 103 and the air inlet pipe 104, the smooth passage of airflow during normal ventilation is guaranteed.

[0048] Example 2

[0049] For further details, please refer to [link / reference]. Figures 1 to 10Based on Embodiment 1, the cover unit 3 includes a transmission component 31 and a cover plate component 32. The transmission component 31 includes a sliding sleeve 316, which is fixedly connected to the outer wall of the purification filter box 101. A lifting frame 311 is vertically slidably connected through the sliding sleeve 316. Two oblique guide holes 312 are symmetrically opened on both sides of the lower part of the lifting frame 311. The two oblique guide holes 312 are symmetrically arranged in an "eight" shape. A horizontal elongated hole 313 is opened through the upper part of the lifting frame 311. A second connecting strip 314 is fixedly sleeved on the outer side of the horizontal rotating tube 234. A second eccentric wheel 315 is rotatably connected to the end of the second connecting strip 314 away from the horizontal rotating tube 234. The second eccentric wheel 315 is slidably arranged in the horizontal elongated hole 313, and the horizontal elongated hole 313 is adapted to the second eccentric wheel 315.

[0050] In the above, the sliding sleeve 316 provides a stable guide for the vertical sliding of the lifting frame 311, the second eccentric wheel 315 slides in the horizontal elongated hole 313 on the lifting frame 311, converting the rotational power of the horizontal rotating tube 234 into the vertical lifting power of the lifting frame 311, and the oblique guide elongated hole 312 prepares for the subsequent power transmission with the cover plate component 32.

[0051] Furthermore, the cover plate component 32 includes a sealing plate 321. Two sealing plates 321 are symmetrically arranged. A flip shaft 322 is fixedly connected to one side of each sealing plate 321. The flip shaft 322 is rotatably connected inside the collection box 102. One end of the flip shaft 322 extends out of the collection box 102 and is fixedly connected to a connecting rod 323. The end of the connecting rod 323 away from the flip shaft 322 is rotatably connected to a third eccentric wheel 324. The third eccentric wheel 324 corresponds to and is adapted to the oblique guide elongated hole 312. The third eccentric wheel 324 is slidably arranged in the corresponding oblique guide elongated hole 312. Two ash inlets 325 are symmetrically opened on the top of the collection box 102. The two ash inlets 325 are corresponding to the two sealing plates 321. The size of the sealing plate 321 is larger than the size of the ash inlet 325. The sealing plate 321 covers the ash inlet 325 and forms a seal. A sealing strip is fixedly installed at the top edge of the sealing plate 321.

[0052] In the above description, the cover plate component 32 controls the opening and closing of the ash inlet 325 between the purification filter box 101 and the collection box 102. Two sealing plates 321 are correspondingly set with the two ash inlets 325, enabling the sealing and opening of the ash inlets 325. The rotating shaft 322 provides stable support for the rotation of the sealing plates 321, ensuring their rotational flexibility. The connecting rod 323 transmits power between the rotating shaft 322 and the third eccentric wheel 324, causing the lifting frame 311 to move vertically. The force is converted into the rotational power of the sealing plate 321. The size of the sealing plate 321 is larger than that of the ash inlet 325. Together with the sealing strip on the top edge, it ensures the sealing effect of the ash inlet 325, preventing the airflow in the purification filter box 101 from leaking from the ash inlet 325 during normal ventilation, thus ensuring the ventilation and purification efficiency of the device. When cleaning the ash, the sealing plate 321 rotates to open the ash inlet 325, allowing the dust that falls off during cleaning to fall smoothly into the collection box 102 under the action of gravity, thus achieving centralized collection of dust.

[0053] Example 3

[0054] For further details, please refer to [link / reference]. Figures 1 to 13 Based on Embodiment 2, the backflushing unit 4 includes a reciprocating backflushing component 41 and a one-way valve component 42. The reciprocating backflushing component 41 includes an outer cylinder 411, which is fixedly connected to the other side of the purification filter box 101. A piston 418 is slidably connected to the inner side of the outer cylinder 411. A hinge rod 417 is hinged to the middle of one side of the piston 418. A horizontal slide rod 419 is symmetrically fixedly connected to one side of the piston 418. Several horizontal slide rods 419 are provided and are slidably connected to the outer cylinder 411. On the outside of the outer cylinder 411, a vertical rotating rod 412 is rotatably connected. A protrusion 415 is fixedly connected to the top of the vertical rotating rod 412. An eccentric column 416 is fixedly connected to one end of the protrusion 415. The end of the hinge rod 417 away from the piston 418 is rotatably sleeved on the outside of the eccentric column 416. A worm gear 414 is fixedly connected to the bottom of the vertical rotating rod 412. A worm 413 is fixedly connected to the other end of the horizontal rotating shaft 222. The worm 413 meshes with the worm gear 414. An opening is provided at the end of the outer cylinder 411 away from the purification filter box 101.

[0055] In the above, the reciprocating back-blowing component 41 can provide the filter screen 106 with the airflow power for reverse blowing. The meshing of the worm 413 and the worm wheel 414 realizes the conversion of the horizontal rotation of the horizontal rotating shaft 222 to the vertical rotation of the vertical rotating rod 412. Moreover, the transmission of the worm 413 and the worm wheel 414 has a self-locking characteristic. When the horizontal rotating shaft 222 does not rotate, the piston 418 will not move arbitrarily. The opening at the end of the outer cylinder 411 away from the purification filter box 101 provides a channel for the entry of outside air, realizing the continuous supply of back-blowing airflow.

[0056] Furthermore, the one-way valve component 42 includes a fixing block 421, which is fixedly connected to the other side of the piston 418. A vent 422 is provided through the piston 418. Two vents 422 are symmetrically arranged. A protruding edge 423 is provided inside the vent 422. A one-way plate 424 is provided inside the vent 422. A pin 426 is fixedly connected to one side of the one-way plate 424. Both ends of the pin 426 are rotatably connected to the inner wall of the vent 422. One side of the plate 424 is fitted with the convex edge 423, and a sealing strip is embedded in the contact surface between the one-way plate 424 and the convex edge 423 to improve the sealing performance between the one-way plate 424 and the convex edge 423. A spring plate 425 is provided on the other side of the one-way plate 424. One end of the spring plate 425 is fixedly connected to the other side of the one-way plate 424, and the other end of the spring plate 425 is fixedly connected to the side wall of the fixing block 421. A second dust filter 427 is fixedly installed on the inner side of the convex edge 423.

[0057] In the above, the one-way valve component 42 enables one-way airflow within the outer cylinder 411, the fixing block 421 provides stable mounting support for the spring plate 425, ensuring its effective elastic function, the two symmetrically arranged vents 422 improve the efficiency of air intake and exhaust, ensuring the airflow during the reciprocating motion of the piston 418, the convex edge 423 provides a support surface for the sealing fit of the one-way plate 424, the pin 426 provides flexible support for the rotation of the one-way plate 424, and the sealing strip at the contact surface between the one-way plate 424 and the convex edge 423 significantly improves the one-way sealing effect, ensuring the piston 418 flows into the purification filter box. When 101 moves to one side, the air inside the outer cylinder 411 can be effectively compressed to form a high-pressure backflush airflow, which backflushs the filter screen 106. The spring plate 425 can provide a continuous elastic force for the reset of the one-way plate 424, ensuring that when the piston 418 moves away from the purification filter box 101, the one-way plate 424 can smoothly overcome the elastic force and open, allowing outside air to quickly enter the outer cylinder 411 through the vent 422, preparing for the next backflush air supply and realizing the continuous generation of backflush airflow. A second dust filter 427 is set to prevent dust and impurities from being carried in when outside air enters through the vent 422.

[0058] Furthermore, the top of the collection box 102 has a through-hole for mounting, and a first dust filter 1021 is fixedly installed in the mounting hole. A sealing door is installed on one side of the collection box 102. One side of the sealing door is rotatably connected to the outer wall of the collection box 102 by a quick-release hinge. A press-type buckle locking structure is provided between the other side of the sealing door and the collection box 102, so as to facilitate opening and fixing the sealing door. A collection drawer is provided on the lower inner side of the collection box 102. The dust can be emptied by taking out the collection drawer.

[0059] In the above, the first dust filter 1021 can block the dust collected in the collection box 102 and prevent the dust from escaping back into the purification filter box 101 under the action of the airflow inside the device, causing secondary pollution.

[0060] Furthermore, the electric cylinder 212 is electrically connected to an external control switch via a wire, and the operation of the electric cylinder 212 is controlled by the external control switch.

[0061] The working principle of the HVAC treatment device with air purification function provided by this invention is as follows:

[0062] During the normal air supply phase, the air to be purified enters the air inlet pipe 104 through the external pipe and then enters the purification filter box 101 through the air inlet pipe 104. The airflow flows upward to the frame 105 and is filtered by the filter screen 106. Particulate matter and impurities in the air are intercepted by the filter screen 106, completing the air purification. The purified air continues to flow upward and is discharged to the indoor air outlet through the air outlet pipe 103, realizing the air purification and ventilation of the HVAC system.

[0063] During this process, the two connecting holes 233 on the circular valve plate 232 in the valve component 23 correspond to the inlet end of the air outlet pipe 103 and the outlet end of the air inlet pipe 104, respectively, to ensure normal airflow; the two sealing plates 321 in the cover plate component 32 tightly cover the two ash inlets 325 on the top of the collection box 102, forming a seal for the ash inlets 325.

[0064] When a large amount of dust accumulates on the lower surface of filter screen 106 and cleaning is required, cleaning unit 2, covering unit 3, and backflushing unit 4 work together in the following manner:

[0065] When the electric cylinder 212 of the drive component 21 is activated, the telescopic end of the electric cylinder 212 retracts, causing the drive frame 213 to slide linearly along the T-shaped slide groove 214 at the bottom of the mounting frame 211. The T-shaped slide bar 215 at the top of the drive frame 213 slides synchronously within the T-shaped slide groove 214, providing guidance and limiting for the movement of the drive frame 213. During the movement of the drive frame 213, the first eccentric wheel 236 on the inner side of the bottom end of its inclined guide groove 217 moves under the guidance of the groove body, and drives the first connecting bar 235 to rotate the horizontal rotating tube 234. The horizontal rotating tube 234 drives the circular valve plate 232 to rotate in a sealed manner within the valve plate mounting cavity 231, so that the two connecting holes 233 on the circular valve plate 232 are misaligned with the corresponding positions of the air outlet pipe 103 and the air inlet pipe 104, thereby achieving a seal and blockage of the air outlet pipe 103 and the air inlet pipe 104, preventing dust from escaping from the air outlet pipe 103 and the air inlet pipe 104 during the dust removal process.

[0066] When the circular valve plate 232 blocks the air outlet pipe 103 and the air inlet pipe 104, the first eccentric wheel 236 enters the horizontal guide groove 216 from the oblique guide groove 217, and the circular valve plate 232 stops rotating.

[0067] As the horizontal rotating tube 234 rotates, the second connecting strip 314 on its outer side rotates synchronously. The second eccentric wheel 315 at the end of the second connecting strip 314 moves in the horizontal elongated hole 313 at the top of the lifting frame 311 and drives the lifting frame 311 to slide upward in the sliding sleeve 316. The sliding sleeve 316 provides guidance for the vertical movement of the lifting frame 311. During the movement of the lifting frame 311, the oblique guide elongated holes 312 on both sides of its lower part drive the connecting rod 323 to rotate through the internal third eccentric wheel 324. The connecting rod 323 drives the flipping shaft 322 to rotate on the collection box 102. The flipping shaft 322 drives the sealing plate 321 to rotate around the flipping shaft 322, so that the sealing plate 321 and the ash inlet 325 at the top of the collection box 102 are separated from each other, opening the ash inlet 325 between the purification filter box 101 and the collection box 102, preparing for dust collection.

[0068] After the two connecting holes 233 on the circular valve plate 232 are misaligned with the corresponding positions of the air outlet pipe 103 and the air inlet pipe 104, the rack 218 and the spur gear 226 at one end of the horizontal rotating shaft 222 come into contact and mesh with each other. The rack 218 moves with the drive frame 213, driving the spur gear 226 to rotate. The spur gear 226 drives the horizontal rotating shaft 222 to rotate. When the horizontal rotating shaft 222 rotates, the second bevel gear 225 on its outer side and the first bevel gear 225 at the top of the vertical shaft 223... 24 mesh with each other, driving the first bevel gear 224 to rotate, which in turn drives the vertical shaft 223 to rotate the cleaning brush 2210. The upper surface of the cleaning brush 2210 is in close contact with the lower surface of the filter screen 106. By rotating, the dust on the lower surface of the filter screen 106 is mechanically brushed away, achieving the initial cleaning of the filter screen. At the same time, when the horizontal rotating shaft 222 rotates, it will twist the coil spring 229 inside the disc 228. The coil spring 229 completes energy storage as the horizontal rotating shaft 222 rotates.

[0069] While the horizontal rotating shaft 222 rotates, the worm 413 at its other end meshes with the worm wheel 414 at the bottom of the vertical rotating rod 412, causing the worm wheel 414 to rotate, which in turn causes the vertical rotating rod 412 to rotate. The protrusion 415 at the top of the vertical rotating rod 412 rotates synchronously with it. The eccentric column 416 at the end of the protrusion 415 drives the hinge rod 417 to reciprocate. The hinge rod 417 drives the piston 418 to reciprocate in a sealed manner inside the outer cylinder 411. The horizontal sliding rod 419 on one side of the piston 418 slides synchronously on the outer cylinder 411, providing guidance for the reciprocating motion of the piston 418.

[0070] During the reciprocating sliding of piston 418, the one-way valve component 42 on its other side works in coordination. When piston 418 moves towards the purification filter box 101, the one-way plate 424 in the vent 422 rotates around the pin 426 under air pressure and fits tightly against the convex edge 423. The contact surface between the one-way plate 424 and the convex edge 423 is sealed by a sealing strip. Piston 418 forces the air in the outer cylinder 411 into the purification filter box 101, forming a high-pressure backflush airflow that cleans the filter screen 1. The surface of filter 106 is back-blown to blow off some of the dust attached to the filter screen 106. This, combined with the mechanical cleaning of the cleaning brush 2210, enhances the cleaning effect. When the piston 418 moves away from the purification filter box 101, the air pressure pushes the one-way plate 424 to overcome the elastic force of the spring plate 425 and rotate around the pin 426, causing the vent 422 to open. Outside air enters the outer cylinder 411 through the opening and the vent 422, preparing for the next back-blowing air supply.

[0071] Dust removed by mechanical brushing by cleaning brush 2210 and back-blowing by high-pressure airflow from back-blowing unit 4 falls into the collection box 102 through the dust inlet 325 opened at the top of the collection box 102 under the action of gravity, realizing the centralized collection of dust and preventing dust from accumulating inside the purification filter box 101.

[0072] Then, the telescopic end of the electric cylinder 212 is extended and reset, driving the drive frame 213 to slide in the opposite direction along the T-shaped slide groove 214 back to the initial position. During the reset process, when the first eccentric wheel 236 is still moving within the horizontal guide groove 216, the cleaning brush 2210 rotates in the opposite direction to continue cleaning the lower surface of the filter screen 106. Meanwhile, the piston 418 reciprocates to continue back-blowing the filter screen 106 until the first eccentric wheel 236 enters the oblique guide groove 217 from the horizontal guide groove 216. At this point, the rack 218 disengages from the spur gear 226. As the spring 229 is released, its elastic potential energy is fully released, the horizontal rotating shaft 222 stops rotating, the dust removal action stops, the dust removal brush 2210 and piston 418 are reset to their initial positions, and then the first eccentric wheel 236 moves from the top to the bottom of the inclined guide groove 217 until the sealing plate 321 covers the dust inlet 325 again and seals it; the circular valve plate 232 is reset, so that the two connecting holes 233 correspond to the air outlet pipe 103 and the air inlet pipe 104 respectively, and the entire device returns to the normal air purification and ventilation working state, waiting for the next dust removal operation command.

[0073] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A heating, ventilation, and air conditioning (HVAC) treatment device with air purification function, characterized in that, The system includes a processing box unit (1), which includes a purification filter box (101). A collection box (102) is fixedly connected to the bottom of the purification filter box (101). An air outlet pipe (103) is connected to the upper part of one side of the purification filter box (101), and an air inlet pipe (104) is connected to the lower part of one side of the purification filter box (101). A frame (105) is fixedly connected inside the purification filter box (101), and two filter screens (106) are symmetrically and fixedly connected through the frame (105). The processing box unit (1) is equipped with a cleaning unit (2), a cover unit (3) and a backflushing unit (4); The cleaning unit (2) is used to clean the lower surface of the filter screen (106), and to block the air outlet pipe (103) and air inlet pipe (104) before cleaning. The cover unit (3) is used to connect the purification filter box (101) and the collection box (102) during dust removal, so that the dust generated during dust removal falls into the collection box (102) for collection. The back-blowing unit (4) is used to back-blow the filter screen (106) while the cleaning unit (2) is cleaning the dust, thereby enhancing the dust cleaning effect.

2. The HVAC treatment device with air purification function according to claim 1, characterized in that, The cleaning unit (2) includes a drive component (21), a dust removal component (22), and a valve component (23); the drive component (21) includes a mounting bracket (211), which is fixedly connected to the outer wall of the purification filter box (101). An electric cylinder (212) is fixedly mounted on the mounting bracket (211), and a drive frame (213) is fixedly connected to one end of the electric cylinder (212). A rack is fixedly connected to the side wall of the drive frame (213). 218), a T-shaped slide bar (215) is fixedly connected to the top of the drive frame (213), and a T-shaped slide groove (214) adapted to the T-shaped slide bar (215) is opened at the bottom of the mounting frame (211). The T-shaped slide bar (215) is slidably disposed in the T-shaped slide groove (214). A horizontal guide groove (216) and an oblique guide groove (217) are opened through the drive frame (213). One end of the horizontal guide groove (216) is connected to the top end of the oblique guide groove (217).

3. A heating and ventilation system with air purification function according to claim 2, characterized in that, The dust removal component (22) includes an installation channel (221) that extends horizontally through the frame (105). A dust removal brush (2210) is provided at the bottom of the frame (105), with its upper surface in contact with the lower surface of the filter screen (106). A vertical shaft (223) is rotatably connected within the installation channel (221), with a first bevel gear (224) fixedly connected to its top end. The bottom end of the vertical shaft (223) passes through the frame (105) and is fixedly connected to the top of the dust removal brush (2210). A horizontal rotating shaft (222) is provided within the installation channel (221), with both ends of the horizontal rotating shaft (222) passing through the purification filter box (101) and extending out to... Externally, a spur gear (226) is fixedly connected to one end of the horizontal rotating shaft (222). The spur gear (226) meshes with the rack (218) when in contact. A second bevel gear (225) is fixedly sleeved on the outer side of the horizontal rotating shaft (222). The second bevel gear (225) meshes with the first bevel gear (224). A fixing strip (227) is fixedly connected to the outer wall of the purification filter box (101). A disc (228) is fixedly connected to one end of the fixing strip (227). A coil spring (229) is provided on the inner side of the disc (228). One end of the coil spring (229) is fixedly connected to the inner wall of the disc (228), and the other end of the coil spring (229) is fixedly connected to the outer wall of the horizontal rotating shaft (222).

4. The HVAC treatment device with air purification function according to claim 3, characterized in that, The valve component (23) includes a valve plate mounting cavity (231), which is located inside the purification filter box (101) and is connected to both the air outlet pipe (103) and the air inlet pipe (104). A circular valve plate (232) is rotatably connected to the valve plate mounting cavity (231). A horizontal rotating pipe (234) is fixedly connected to the center of the circular valve plate (232). The horizontal rotating pipe (234) is movably sleeved on the outside of the horizontal rotating shaft (222). One end of the horizontal rotating pipe (234) extends through the purification filter box (101) to the outside and is fixedly sleeved with a first connecting strip (23). 5) The first connecting bar (235) is rotatably connected to the end away from the first bevel gear (224) with a first eccentric wheel (236). The first eccentric wheel (236) is slidably disposed on the inner side of the bottom end of the inclined guide groove (217), and both the horizontal guide groove (216) and the inclined guide groove (217) are adapted to the first eccentric wheel (236). Two symmetrically arranged connecting holes (233) are opened horizontally through the circular valve plate (232). One of the connecting holes (233) corresponds to the inlet end of the air outlet pipe (103), and the other connecting hole (233) corresponds to the outlet end of the air inlet pipe (104).

5. A heating and ventilation system with air purification function according to claim 4, characterized in that, The cover unit (3) includes a transmission component (31) and a cover plate component (32); the transmission component (31) includes a sliding sleeve (316), which is fixedly connected to the outer wall of the purification filter box (101). A lifting frame (311) is vertically slidably connected through the sliding sleeve (316). Two oblique guide holes (312) are symmetrically opened on both sides of the lower part of the lifting frame (311). A horizontal long hole (313) is opened through the upper part of the lifting frame (311). A second connecting strip (314) is fixedly sleeved on the outer side of the horizontal rotating tube (234). A second eccentric wheel (315) is rotatably connected to the end of the second connecting strip (314) away from the horizontal rotating tube (234). The second eccentric wheel (315) is slidably arranged in the horizontal long hole (313), and the horizontal long hole (313) is adapted to the second eccentric wheel (315).

6. A heating and ventilation system with air purification function according to claim 5, characterized in that, The cover plate component (32) includes a sealing plate (321), two of which are symmetrically arranged. A rotating shaft (322) is fixedly connected to one side of each of the two sealing plates (321). The rotating shaft (322) is rotatably connected inside the collection box (102), and one end of the rotating shaft (322) extends out of the collection box (102) and is fixedly connected to a connecting rod (323). A third connecting rod (323) is rotatably connected to the end of the connecting rod (323) away from the rotating shaft (322). Eccentric wheel (324), the third eccentric wheel (324) corresponds to and is adapted to the oblique guide long hole (312). The third eccentric wheel (324) is slidably disposed in the corresponding oblique guide long hole (312). The top of the collection box (102) has two symmetrical ash inlets (325). The two ash inlets (325) are corresponding to the two sealing plates (321). The sealing plates (321) cover the ash inlets (325) and form a seal.

7. A heating and ventilation system with air purification function according to claim 3, characterized in that, The backflush unit (4) includes a reciprocating backflush component (41) and a one-way valve component (42); the reciprocating backflush component (41) includes an outer cylinder (411), which is fixedly connected to the other side of the purification filter box (101). A piston (418) is slidably connected to the inner side of the outer cylinder (411). A hinge rod (417) is hinged to the middle of one side of the piston (418). A horizontal slide rod (419) is symmetrically fixedly connected to one side of the piston (418). Several horizontal slide rods (419) are provided, and the horizontal slide rods (419) are slidably connected through the filter box (101). On the outer cylinder (411), a vertical rotating rod (412) is rotatably connected to the outer side of the outer cylinder (411). A protrusion (415) is fixedly connected to the top of the vertical rotating rod (412). An eccentric column (416) is fixedly connected to one end of the protrusion (415). The end of the hinge rod (417) away from the piston (418) is rotatably sleeved on the outside of the eccentric column (416). A worm wheel (414) is fixedly connected to the bottom end of the vertical rotating rod (412). A worm (413) is fixedly connected to the other end of the horizontal rotating shaft (222). The worm (413) meshes with the worm wheel (414).

8. A heating and ventilation system with air purification function according to claim 7, characterized in that, The one-way valve component (42) includes a fixing block (421), which is fixedly connected to the other side of the piston (418). A vent (422) is provided through the piston (418), and two vents (422) are symmetrically arranged. A protruding edge (423) is provided inside each vent (422), and a one-way plate (424) is provided inside each vent (422). A pin (426) is fixedly connected to one side of the one-way plate (424). The two ends of 426) are rotatably connected to the inner wall of the vent (422). One side of the one-way plate (424) is in contact with the convex edge (423). A spring plate (425) is provided on the other side of the one-way plate (424). One end of the spring plate (425) is fixedly connected to the other side of the one-way plate (424). The other end of the spring plate (425) is fixedly connected to the side wall of the fixing block (421). A second dust filter (427) is fixedly installed on the inner side of the convex edge (423).

9. A heating and ventilation system with air purification function according to claim 1, characterized in that, The top of the collection box (102) has a through-hole for installation, and a first dust filter (1021) is fixedly installed in the installation hole.

10. A heating and ventilation system with air purification function according to claim 2, characterized in that, The centerline of the transverse guide groove (216) is parallel to the length direction of the rack (218).

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