UVC air purification device for central air conditioning system

Abstract

The invention relates to the technical field of air purification devices, in particular to a UVC air purification device for a central air conditioning system, which comprises a purifier body, a purification structure, a mounting structure, a scraping structure, a driving structure and an adjusting structure, by arranging the adjusting structure, safety accidents caused by falling of the purifier body can be avoided, the safety is improved, meanwhile, the whole purifier body does not need to be detached from the pipeline, the operation flexibility of replacing the filtering assembly is improved, the mounting box and the frame are convenient to disassemble and assemble by arranging the mounting structure, and the practicability is high. Meanwhile, the safety during disassembly and assembly is improved, air can be continuously purified through the purification structure, harmful gas can be adsorbed, and the situation that the ultraviolet transmittance of the ultraviolet lamp tube is weakened and the sterilization and disinfection effect is reduced due to the fact that dust adheres to the ultraviolet lamp tube is avoided through the scraping structure; and meanwhile, the scraping structure is matched with the driving structure for use, so that the cleaned dust can be prevented from being sucked out again due to airflow and adhered to the ultraviolet lamp tube and the first filter screen.

Description

Technical Field

[0001] The invention relates to the technical field of air purification devices, in particular to a UVC air purification device for a central air conditioning system. Background Art

[0002] The UVC air purifier is installed in the ventilation duct of the central air conditioner, and purifies the air with the help of the air circulation of the air conditioner. The central air conditioner is responsible for adjusting the temperature and humidity, and the UVC purifier is responsible for sterilization and removing particulate matter. The functions of the two complement each other to purify the air and jointly improve the air quality.

[0003] However, since the air flow in the ventilation ducts of the central air-conditioning system will carry a large amount of dust and other particles, these dusts are easy to adhere to the surface of the UVC ultraviolet lamp. As the dust continues to accumulate, the ultraviolet transmittance of the UVC ultraviolet lamp will be weakened, reducing its sterilization and disinfection effect. In some large central air-conditioning systems, the purifier is large in size and heavy in weight. When replacing it, the entire equipment needs to be removed from the pipeline to replace components such as the filter. If the purifier falls during the dismantling process, it will not only damage the equipment itself, but may also injure the operator and cause a safety accident. Although UVC ultraviolet rays can kill microorganisms in the air to a certain extent, the ultraviolet rays have a very limited effect on removing pollutants such as some volatile organic compounds and odorous gases. These pollutants will still remain in the air, causing unpleasant odors in the indoor air and endangering human health. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a UVC air purification device for a central air-conditioning system.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a UVC air purification device for a central air conditioning system, comprising a purifier body, a purification structure installed on the purifier body, a scraping structure installed between the purification structure and the purifier body, and an adjustment structure installed on the purifier body; The purification structure comprises four ultraviolet lamps installed on the purifier body and a connecting frame installed on the purifier body, a mounting box is installed on the connecting frame, a plurality of frames are installed in the mounting box, a first filter is installed on the frame, activated carbon is installed on the mounting box, the scraping structure comprises a screw rod rotatably connected to the purifier body and an adjusting block threadedly connected to the screw rod, four scraping rings are fixedly connected to the adjusting block, and the four scraping rings are respectively slidably connected to the four ultraviolet lamps, a collecting frame is installed on the purifier body, a plurality of connecting shafts are rotatably connected to the collecting frame, a baffle is fixedly connected to the connecting shaft, a gear is fixedly connected to the connecting shaft, a roller is rotatably connected to the adjusting block through a rotating shaft, and a second filter is installed at the bottom of the collecting frame; The collecting frame is provided with a driving structure, which includes a guide frame fixedly connected to the collecting frame and a driving block slidably connected to the guide frame, the driving block is in a trapezoidal structure, the roller and the driving block rollingly cooperate, the driving block is fixedly connected with a guide block, the guide block is slidably connected to the guide frame, a second tension spring is fixedly connected between the guide block and the guide frame, a rack is slidably connected in the collecting frame, the gear is meshed with the rack, and a fixing rod is fixedly connected between the rack and the driving block.

[0006] Specifically, a through slot is provided on the installation box, a motor is installed in the purifier body, and the screw rod is fixedly connected to the output shaft of the motor.

[0007] Specifically, a connecting rod is fixedly connected to the purifier body, the collection frame is slidably connected to the connecting rod, a second knob is threadedly connected to the collection frame, the second knob abuts against the connecting rod, a fixing plate is fixedly connected to the bottom of the collection frame, and a fan is installed on the fixing plate.

[0008] Specifically, the installation box is installed on the frame via an installation structure, and the installation structure includes a mounting plate slidably connected to the connection frame and a connection block fixedly connected to the mounting plate, and the mounting plate is engaged with the installation box.

[0009] Specifically, a guide rod is fixedly connected to the connecting frame, and the connecting block is slidably connected to the guide rod.

[0010] Specifically, a first knob is threadedly connected to the mounting plate, a slot is provided on the connecting frame, an end of the first knob is plugged into the slot, and a first tension spring is fixedly connected between the connecting block and the connecting frame.

[0011] Specifically, the adjustment structure includes a slide rod fixedly connected to the rear of the purifier body and a slide rail slidably connected to the slide rod, a guide column is fixedly connected to the slide rail, and the slide rod is slidably connected to the guide column.

[0012] Specifically, a limiting rod is slidably connected inside the sliding rod, and two limiting grooves are provided on the guide column, and the limiting rod is engaged with one of the limiting grooves.

[0013] Specifically, a pressing block is fixedly connected to the limiting rod, and the pressing block is slidably connected to the sliding rod.

[0014] Specifically, the cross section of the limiting rod is an "L"-shaped structure, and a spring is fixedly connected between the limiting rod and the sliding rod.

[0015] The beneficial effects of the present invention are: (1) The UVC air purification device for a central air conditioning system described in the present invention has an adjustment structure on the purifier body. The setting of the adjustment structure can prevent the purifier body from falling and causing safety accidents, thereby improving safety. At the same time, there is no need to remove the entire purifier body from the pipeline, thereby improving the operational flexibility of replacing the filter component.

[0016] (2) In the UVC air purification device for a central air conditioning system described in the present invention, the installation box and the frame are installed via an installation structure. The installation structure facilitates the disassembly and assembly between the installation box and the frame, while improving the safety during disassembly and assembly.

[0017] (3) The UVC air purification device for a central air conditioning system described in the present invention has a purification structure on the purifier body, a scraping structure between the purification structure and the purifier body, and a driving structure on the collection frame. The purification structure is arranged to facilitate the cooperation between the purifier body and the central air conditioner during the air circulation process, thereby achieving continuous purification of the indoor air, and can absorb the debris and odor produced after the microorganisms are killed, as well as harmful gases produced by the metabolism of the microorganisms. The scraping structure is arranged to facilitate scraping the dust on the ultraviolet lamp tube, thereby preventing the dust from adhering to the ultraviolet lamp tube, thereby weakening the ultraviolet transmittance of the ultraviolet lamp tube and reducing its sterilization and disinfection effect. At the same time, the scraping structure is used in conjunction with the driving structure to prevent the cleaned dust from being sucked out of the collection frame again due to airflow and adhering to the ultraviolet lamp tube and the first filter net. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a UVC air purification device for a central air conditioning system provided by the present invention; Figure 2 It is a schematic diagram of the connection structure between the mounting plate and the connection frame of the present invention; Figure 3 It is a schematic diagram of the connection structure between the collection frame and the purifier body of the present invention; Figure 4 for Figure 3 An enlarged schematic diagram of the structure of section A is shown; Figure 5 for Figure 3 An enlarged schematic diagram of the structure of part B is shown; Figure 6 It is a schematic diagram of the connection structure between the baffle and the connecting shaft of the present invention; Figure 7 for Figure 6 An enlarged schematic diagram of the C-section structure is shown; Figure 8 It is a schematic diagram of the connection structure between the guide block and the guide frame of the present invention; Fig. 9 It is a schematic diagram of the connection structure between the slide bar and the slide rail of the present invention; Fig.10 for Fig. 9 An enlarged schematic diagram of the D-section structure is shown; Fig.11 for Fig. 9 An enlarged schematic diagram of the E-section structure is shown.

[0020] In the figure: 1. Purifier body; 2. Purification structure; 201. UV lamp; 202. Connection frame; 203. Mounting box; 204. Frame; 205. First filter; 206. Activated carbon; 207. Through slot; 3. Mounting structure; 301. Mounting plate; 302. Connection block; 303. Guide rod; 304. First knob; 305. Slot; 306. First tension spring; 4. Scraping structure; 401. Screw rod; 402. Adjustment block; 403. Scraping ring; 404. Motor; 405. Roller; 406. Collector Frame; 407, second filter; 408, connecting shaft; 409, baffle; 410, gear; 411, fixing plate; 412, fan; 413, connecting rod; 414, second knob; 5, driving structure; 501, guide frame; 502, driving block; 503, guide block; 504, second tension spring; 505, fixing rod; 506, rack; 6, adjusting structure; 601, sliding rod; 602, sliding rail; 603, guide column; 604, limiting rod; 605, limiting groove; 606, spring; 607, pressing block. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, a UVC air purification device for a central air conditioning system described in the present invention includes a purifier body 1, a purification structure 2 installed on the purifier body 1, a scraping structure 4 installed between the purification structure 2 and the purifier body 1, and an adjustment structure 6 installed on the purifier body 1; the purification structure 2 includes four ultraviolet lamps 201 installed on the purifier body 1 and a connecting frame 202 installed on the purifier body 1, a mounting box 203 is installed in the connecting frame 202, a plurality of frames 204 are installed in the mounting box 203, a first filter 205 is installed on the frame 204, and activated carbon 206 is installed on the mounting box 203, the scraping structure 4 includes a screw rod 401 rotatably connected to the purifier body 1 and an adjustment block 402 threadedly connected to the screw rod 401, four scraping rings 403 are fixedly connected to the adjustment block 402, and the four scraping rings 403 are respectively slidably connected to the four ultraviolet lamps 201, and a collecting frame 406 is installed on the purifier body 1. The collecting frame 406 is rotatably connected to a plurality of connecting shafts 408, the connecting shaft 408 is fixedly connected to a baffle 409, the connecting shaft 408 is fixedly connected to a gear 410, the adjusting block 402 is rotatably connected to a roller 405 via a rotating shaft, and a second filter screen 407 is installed at the bottom of the collecting frame 406; the collecting frame 406 is provided with a driving structure 5, the driving structure 5 includes a guide frame 501 fixedly connected to the collecting frame 406 and a driving mechanism 502 slidably connected to the guide frame 501. The movable block 502 has a trapezoidal structure, the roller 405 and the driving block 502 are in rolling cooperation, the driving block 502 is fixedly connected with a guide block 503, the guide block 503 is slidably connected with the guide frame 501, a second tension spring 504 is fixedly connected between the guide block 503 and the guide frame 501, a rack 506 is slidably connected in the collecting frame 406, the gear 410 is meshed with the rack 506, and a fixing rod 505 is fixedly connected between the rack 506 and the driving block 502.

[0023] Specifically, Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, the installation box 203 is provided with a through slot 207, a motor 404 is installed in the purifier body 1, the screw rod 401 is fixedly connected to the output shaft of the motor 404, a connecting rod 413 is fixedly connected to the purifier body 1, the collection frame 406 is slidably connected to the connecting rod 413, a second knob 414 is threadedly connected to the collection frame 406, the second knob 414 is in conflict with the connecting rod 413, a fixing plate 411 is fixedly connected to the bottom of the collection frame 406, a fan 412 is installed on the fixing plate 411, when purifying the air, the central air conditioner drives the air to circulate in the building through the driving assembly, and the purifier body 1 uses the air circulation power of the central air conditioner to allow the air to enter the purification group in the purifier body 1 When the air passes through the ultraviolet lamp 201, the ultraviolet light of a specific wavelength is emitted by the ultraviolet lamp 201 to destroy the DNA or RNA structure of the microorganisms to sterilize and disinfect, and at the same time, it can assist in decomposing some organic pollutants, and then the particles and microorganisms are filtered through the first filter 205, and then the harmful gases are adsorbed by the activated carbon 206. Finally, the return air equipment of the central air conditioner brings the purified air back to the air conditioning system for the next cycle. The purifier body 1 and the central air conditioner cooperate with each other in the air circulation process to achieve continuous purification of the indoor air. The activated carbon 206 can be used to adsorb the debris and odor produced after the microorganisms are killed, as well as the harmful gases produced by the metabolism of the microorganisms, so as to improve the air quality. When the central air conditioner is not running, The dust on the ultraviolet lamp 201 is scraped off by starting the motor 404. When the output shaft of the motor 404 rotates, it drives the screw rod 401 to rotate. When the screw rod 401 rotates, the screw thread drives the adjusting block 402 to move. When the adjusting block 402 moves, it drives the four scraping rings 403 to slide on the ultraviolet lamp 201. When sliding, the dust on the ultraviolet lamp 201 is scraped off to prevent the dust from adhering to the ultraviolet lamp 201, which will weaken the ultraviolet transmittance of the ultraviolet lamp 201 and reduce its sterilization effect. At the same time, when the roller 405 is no longer in contact with the driving block 502, the guide block 503 will drive the driving block 502 to move toward the slide rail 602 under the action of the second tension spring 504, and the driving block 502 will drive the fixed rod 505 to move, so that the fixed rod 505 drives the rack 506 The rack 506 moves and drives the multiple gears 410 to rotate. When the gear 410 rotates, it drives the connecting shaft 408 to rotate. When the connecting shaft 408 rotates, it drives the baffle 409 to rotate to a vertical state. At this time, the cleaned dust will fall into the collection frame 406. At the same time, the fan 412 on the fixed plate 411 can be started to generate airflow, so that the dust can better fall into the second filter 407 on the collection frame 406. At the same time, when the adjustment block 402 gradually returns to the initial position, the roller 405 will cooperate with the inclined surface of the driving block 502 to roll, so that the driving block 502 drives the rack 506 to slide, so that the baffle 409 rotates to a horizontal state, so as to prevent the cleaned dust from being sucked out again due to the airflow and adhering to the ultraviolet lamp 201 and the first filter 205.When the collection frame 406 needs to be disassembled, the second knob 414 only needs to be rotated so that the second knob 414 is no longer pressed against the connecting rod 413, and then the collection frame 406 can be disassembled by sliding the connecting rod 413 off.

[0024] Specifically, Figure 2 and Figure 4 The mounting box 203 and the frame 204 are mounted via a mounting structure 3, wherein the mounting structure 3 comprises a mounting plate 301 slidably connected to the connecting frame 202 and a connecting block 302 fixedly connected to the mounting plate 301, the mounting plate 301 is engaged with the mounting box 203, a guide rod 303 is fixedly connected to the connecting frame 202, the connecting block 302 is slidably connected to the guide rod 303, a first knob 304 is threadedly connected to the mounting plate 301, a slot 305 is provided on the connecting frame 202, an end of the first knob 304 is plugged into the slot 305, a first tension spring 306 is fixedly connected between the connecting block 302 and the connecting frame 202, and when replaced, the first knob 304 can be rotated, and when the first knob 304 is rotated, it is threadedly matched with the mounting plate 301 and is no longer plugged into the slot 305. The connecting block 302 drives the mounting plate 301 to move downward under the action of the first tension spring 306, and the connecting block 302 will slide with the guide rod 303. The setting of the guide rod 303 makes the connecting block 302 move more smoothly. When the mounting plate 301 slides downward until it is no longer engaged with the mounting box 203, due to the setting of the connecting frame 202, the mounting box 203 is engaged with the connecting frame 202, and the mounting box 203 will not fall from the connecting frame 202. The operator can pull the mounting box 203 through the through slot 207 to make the mounting box 203 and the connecting frame 202 slip off, and then remove the mounting box 203 to replace the first filter screen 205 and the activated carbon 206. After replacement, it is only necessary to press the mounting plate 301 upward to engage with the mounting box 203, and then plug the first knob 304 into the slot 305 to complete the replacement of the first filter screen 205 and the activated carbon 206.

[0025] Specifically, Figure 1 , Figure 2 , Figure 3 , Fig. 9 , Fig.10 and Fig.11As shown, the adjustment structure 6 includes a slide bar 601 fixedly connected to the rear of the purifier body 1 and a slide rail 602 slidably connected to the slide bar 601, a guide column 603 is fixedly connected to the slide rail 602, the slide bar 601 is slidably connected to the guide column 603, a limit rod 604 is slidably connected in the slide bar 601, two limit grooves 605 are provided on the guide column 603, the limit rod 604 is engaged with one of the limit grooves 605, a pressing block 607 is fixedly connected to the limit rod 604, the pressing block 607 is slidably connected to the slide bar 601, the cross-section of the limit rod 604 is an "L"-shaped structure, and a spring 606 is fixedly connected between the limit rod 604 and the slide bar 601. When the purifier body 1 needs to be removed from the pipeline for replacement, since the slide rail 602 is installed in the pipeline of the central air-conditioning system, the pressing block 607 can be pressed, and the pressing block 607 slides with When the limit rod 604 slides, the spring 606 contracts so that the limit rod 604 is no longer engaged with the limit groove 605. At this time, the purifier body 1 can be pulled outward by pressing the block 607. When the purifier body 1 moves, the sliding rod 601 is driven to slide between the sliding rail 602 and the guide column 603. When sliding to a certain position, the limit rod 604 will be engaged with another limit groove 605 under the action of the spring 606. The engagement of the limit rod 604 with the guide column 603 facilitates the fixing of the sliding sliding rod 601 to avoid the purifier body 1 from falling and causing safety accidents, thereby improving safety. At the same time, the sliding rod 601 cooperates with the sliding rail 602 and the guide column 603 to facilitate the connection frame 202 and the installation box 203 to slide out of the central air-conditioning pipeline to replace the first filter screen 205 and the activated carbon 206. When replacing, there is no need to remove the entire purifier body 1 from the pipeline, thereby improving the operational flexibility during replacement.

[0026] When the present invention is in use, when it is necessary to remove the purifier body 1 from the pipeline for replacement, since the slide rail 602 is installed in the pipeline of the central air-conditioning system, the pressing block 607 can be pressed, and the pressing block 607 slides to drive the limit rod 604 to slide. When the limit rod 604 slides, the spring 606 contracts, so that the limit rod 604 is no longer engaged with the limit groove 605. At this time, the purifier body 1 can be pulled outward by the pressing block 607. When the purifier body 1 moves, the slide rod 601 slides between the slide rail 602 and the guide column 603. When it slides to a certain position, the limit rod 604 is locked. 04 will be engaged with another limiting groove 605 under the action of spring 606, and the limiting rod 604 is engaged with the guide column 603, so as to fix the sliding slide rod 601, avoid the purifier body 1 from falling and causing safety accidents, thereby improving safety. At the same time, the slide rod 601 cooperates with the slide rail 602 and the guide column 603, so as to make it easy for the connection frame 202 and the installation box 203 to slide out of the central air-conditioning pipeline to replace the first filter screen 205 and the activated carbon 206. When replacing, there is no need to disassemble the entire purifier body 1 from the pipeline, thereby improving the operational flexibility during replacement; When replacing, the first knob 304 can be rotated, and the first knob 304 is engaged with the thread of the mounting plate 301 when it is rotated, and is no longer plugged into the slot 305. At this time, the connecting block 302 drives the mounting plate 301 to move downward under the action of the first tension spring 306, and the connecting block 302 will slide with the guide rod 303. The setting of the guide rod 303 makes the movement of the connecting block 302 more stable. When the mounting plate 301 slides downward until it is no longer engaged with the mounting box 203, at this time, due to the setting of the connecting frame 202, the mounting box 203 The installation box 203 is engaged with the connection frame 202, and the installation box 203 will not fall off the connection frame 202. The operator can pull the installation box 203 through the through slot 207 to make the installation box 203 and the connection frame 202 slip off, and then remove the installation box 203 to replace the first filter screen 205 and the activated carbon 206. After replacement, it is only necessary to press the installation plate 301 upwards to engage with the installation box 203, and then plug the first knob 304 into the slot 305 to complete the replacement of the first filter screen 205 and the activated carbon 206. When purifying the air, the central air conditioner drives the air to circulate in the building through the driving component. The purifier body 1 uses the air circulation power of the central air conditioner to allow the air to enter the purification component in the purifier body 1. When the air passes through the ultraviolet lamp 201, the ultraviolet lamp 201 emits ultraviolet rays of a specific wavelength to destroy the DNA or RNA structure of microorganisms to sterilize and disinfect. At the same time, it can assist in decomposing some organic pollutants, and then the particles and microorganisms are filtered through the first filter 205, and then the harmful gases are adsorbed by the activated carbon 206. Finally, the return air equipment of the central air conditioner brings the purified air back to the air conditioning system for the next cycle. The air is purified by the purifier body 1 and the central air conditioner in the air. During the circulation process, they cooperate with each other to achieve continuous purification of indoor air, and the activated carbon 206 can absorb the debris and odor produced after the microorganisms are killed, as well as harmful gases produced by the metabolism of microorganisms, so as to improve the air quality. When the central air conditioner is not running, the dust on the ultraviolet lamp 201 can be scraped off by starting the motor 404. When the output shaft of the motor 404 rotates, it drives the screw rod 401 to rotate. When the screw rod 401 rotates, the thread drives the adjusting block 402 to move. When the adjusting block 402 moves, it drives four scraping rings 403 to slide on the ultraviolet lamp 201. When sliding, the dust on the ultraviolet lamp 201 is scraped off to prevent the dust from adhering to the ultraviolet lamp 201. The ultraviolet transmittance of the ultraviolet lamp 201 is weakened, reducing its sterilization effect. At the same time, when the roller 405 is no longer in contact with the driving block 502, the guide block 503 will drive the driving block 502 to move toward the slide rail 602 under the action of the second tension spring 504, and the driving block 502 will drive the fixing rod 505 to move, so that the fixing rod 505 drives the rack 506 to move, and the rack 506 drives the multiple gears 410 to rotate when the gear 410 rotates. When the gear 410 rotates, it drives the connecting shaft 408 to rotate. When the connecting shaft 408 rotates, it drives the baffle 409 to rotate to a vertical state. At this time, the cleaned dust will fall into the collection frame 406. At the same time, the fan 412 on the fixed plate 411 can be started to generate The airflow can make the dust fall better into the second filter 407 on the collection frame 406. At the same time, when the adjustment block 402 gradually returns to the initial position, the roller 405 will cooperate with the inclined rolling of the driving block 502, so that the driving block 502 drives the rack 506 to slide, and the baffle 409 rotates to a horizontal state, thereby preventing the cleaned dust from being sucked out again due to the airflow and adhering to the ultraviolet lamp 201 and the first filter 205. When the collection frame 406 needs to be disassembled, it is only necessary to turn the second knob 414 so that the second knob 414 is no longer pressed against the connecting rod 413, and then the collection frame 406 can be disassembled by sliding the collection frame 406 and the connecting rod 413 off.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and range of equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A UVC air purification device for a central air conditioning system, characterized in that: It comprises a purifier body (1), a purification structure (2) installed on the purifier body (1), a scraping structure (4) installed between the purification structure (2) and the purifier body (1), and an adjustment structure (6) installed on the purifier body (1); The purification structure (2) comprises four ultraviolet lamp tubes (201) mounted on the purifier body (1) and a connection frame (202) mounted on the purifier body (1); a mounting box (203) is mounted in the connection frame (202); a plurality of frames (204) are mounted in the mounting box (203); a first filter screen (205) is mounted on the frame (204); activated carbon (206) is mounted on the mounting box (203); and the scraping structure (4) comprises a screw rod (401) rotatably connected to the purifier body (1) and an adjustment block (206) threadedly connected to the screw rod (401). 402), four scraping rings (403) are fixedly connected to the adjustment block (402), the four scraping rings (403) are slidably connected to four ultraviolet lamp tubes (201) respectively, a collecting frame (406) is installed on the purifier body (1), a plurality of connecting shafts (408) are rotatably connected to the collecting frame (406), a baffle (409) is fixedly connected to the connecting shaft (408), a gear (410) is fixedly connected to the connecting shaft (408), a roller (405) is rotatably connected to the adjustment block (402) via a rotating shaft, and a second filter (407) is installed at the bottom of the collecting frame (406); The collecting frame (406) is provided with a driving structure (5), the driving structure (5) comprising a guide frame (501) fixedly connected to the collecting frame (406) and a driving block (502) slidably connected to the guide frame (501), the driving block (502) being of a trapezoidal structure, the roller (405) and the driving block (502) being in rolling cooperation, the driving block (502) being fixedly connected with a guide block (503), the guide block (503) being slidably connected to the guide frame (501), a second tension spring (504) being fixedly connected between the guide block (503) and the guide frame (501), a rack (506) being slidably connected inside the collecting frame (406), the gear (410) being meshed with the rack (506), and a fixing rod (505) being fixedly connected between the rack (506) and the driving block (502).

2. A UVC air purification device for a central air conditioning system according to claim 1, characterized in that: The installation box (203) is provided with a through slot (207), a motor (404) is installed in the purifier body (1), and the screw rod (401) is fixedly connected to the output shaft of the motor (404).

3. A UVC air purification device for a central air conditioning system according to claim 2, characterized in that: A connecting rod (413) is fixedly connected to the purifier body (1); the collection frame (406) is slidably connected to the connecting rod (413); a second knob (414) is threadedly connected to the collection frame (406); the second knob (414) abuts against the connecting rod (413); a fixing plate (411) is fixedly connected to the bottom of the collection frame (406); and a fan (412) is mounted on the fixing plate (411).

4. A UVC air purification device for a central air conditioning system according to claim 3, characterized in that: The installation box (203) and the frame (204) are installed via an installation structure (3), wherein the installation structure (3) comprises a mounting plate (301) slidably connected to the connection frame (202) and a connection block (302) fixedly connected to the mounting plate (301), and the mounting plate (301) is engaged with the installation box (203).

5. A UVC air purification device for a central air conditioning system according to claim 4, characterized in that: A guide rod (303) is fixedly connected to the connection frame (202), and the connection block (302) is slidably connected to the guide rod (303).

6. A UVC air purification device for a central air conditioning system according to claim 5, characterized in that: A first knob (304) is threadedly connected to the mounting plate (301), a slot (305) is provided on the connecting frame (202), an end of the first knob (304) is plugged into the slot (305), and a first tension spring (306) is fixedly connected between the connecting block (302) and the connecting frame (202).

7. A UVC air purification device for a central air conditioning system according to claim 1, characterized in that: The adjustment structure (6) comprises a sliding rod (601) fixedly connected to the rear of the purifier body (1) and a sliding rail (602) slidably connected to the sliding rod (601); a guide column (603) is fixedly connected to the sliding rail (602); and the sliding rod (601) is slidably connected to the guide column (603).

8. A UVC air purification device for a central air conditioning system according to claim 7, characterized in that: A limiting rod (604) is slidably connected inside the sliding rod (601), and two limiting grooves (605) are provided on the guide column (603), and the limiting rod (604) is engaged with one of the limiting grooves (605).

9. A UVC air purification device for a central air conditioning system according to claim 8, characterized in that: A pressing block (607) is fixedly connected to the limiting rod (604), and the pressing block (607) is slidably connected to the sliding rod (601).

10. A UVC air purification device for a central air conditioning system according to claim 9, characterized in that: The cross section of the limiting rod (604) is in an "L"-shaped structure, and a spring (606) is fixedly connected between the limiting rod (604) and the sliding rod (601).

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