Dust removal mechanism for air pipe of central air conditioner

By using a motor to drive the cleaning plate to slide back and forth in the central air conditioning duct, and using nozzles to wash the filter screen, the problem of insufficient airflow affecting dust removal is solved, achieving efficient dust removal and wastewater reuse.

CN224261871UActive Publication Date: 2026-05-19GUANGZHOU HONGBO MECHANICAL & ELECTRICAL ENG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU HONGBO MECHANICAL & ELECTRICAL ENG CO LTD
Filing Date
2025-06-11
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing central air conditioning duct dust removal devices affect airflow when the air drives the scraper to rotate, and the dust removal effect is poor when the wind force is low, making it difficult to keep the filter screen unobstructed.

Method used

A second motor drives a reciprocating screw to rotate, causing the cleaning plate to slide back and forth on the slide bar. The filter screen is washed through the nozzle, and the wastewater and impurities after washing are collected in the collection box to prevent dust and impurities from accumulating.

Benefits of technology

It effectively maintains unobstructed ventilation in the air ducts, improves dust removal efficiency, and facilitates the collection and reuse of wastewater and impurities.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224261871U_ABST
    Figure CN224261871U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of air pipe dust removal, and discloses a central air conditioner air pipe dust removal mechanism which comprises an air pipe body, a filter screen is fixedly connected to the inner wall of the air pipe body, an electric push rod is fixedly connected to the top end of the air pipe body, and the driving end of the electric push rod is fixedly connected with a connecting base. A cleaning roller is rotatably connected to the inner wall of the connecting base, a first motor is fixedly connected to the inner wall of the right end of the connecting base, the right end of the cleaning roller is fixedly connected to the driving end of the first motor, a sliding rod is fixedly connected to the inner wall of the left end of the air pipe body, and a flushing assembly is arranged on the outer wall of the sliding rod. According to the dust removal device, the filter screen is washed through the spray head at the front end of the cleaning plate, dust and impurities cleaned by the cleaning roller are washed away, sewage and impurities after washing flow into the collecting box through the collecting tank, the dust and the impurities can be effectively prevented from being accumulated on the surface of the filter screen, normal ventilation of the air pipe is guaranteed, and meanwhile the dust removal effect is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of duct dust removal technology, and in particular to a dust removal mechanism for central air conditioning ducts. Background Technology

[0002] Central air conditioning is a device that provides temperature regulation for a large area through centralized cooling or heating. It is widely used in residential, commercial and industrial fields. The air transported by central air conditioning ducts contains a lot of solid impurities. When this air is delivered indoors, the indoor air quality will be greatly reduced. Currently, staff usually use filters to filter out these solid impurities.

[0003] A search revealed a dust removal device for central air conditioning ducts (publication number CN215637683U), comprising a duct body, a filter, a cleaning component, and a collection component. The filter and cleaning component are both installed inside the duct body, with the surface of the cleaning component in contact with the filter. The collection component is installed at the lower end of the duct body, and its upper end communicates with the duct body. The collection component is positioned directly below the cleaning component. This invention utilizes a cleaning component where, as air passes over a scraper, the scraper obstructs its movement. When the air pressure on the scraper exceeds its resistance, the air can push the scraper to rotate, allowing some air to pass normally through the filter. The filter then filters out solid impurities from the air. Simultaneously, the scraper drives a first rotating rod to rotate, which in turn drives other scrapers to rotate, scraping off solid impurities adhering to the filter surface as the scrapers pass through, thus keeping the filter unobstructed.

[0004] Based on the aforementioned patent, by setting up a cleaning component, when air passes through the scraper, the scraper blocks the air's advance. When the air pressure on the scraper exceeds the scraper's resistance, the air can push the scraper to rotate, allowing some air to pass normally through the filter. The filter then filters out solid impurities mixed in with the air. At the same time, the scraper drives the first rotating rod to rotate, which in turn drives the other scrapers to rotate. As the scrapers pass through the filter, they scrape off the solid impurities adhering to the filter surface, keeping the filter unobstructed and eliminating the need for manual cleaning by personnel. However, driving the scraper to rotate by air not only affects the normal air circulation of the air conditioner, but also makes it difficult for the scraper to rotate when the wind force is low, resulting in poor dust removal effect.

[0005] In response to this technical problem, this application proposes a dust removal mechanism for central air conditioning ducts. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dust removal mechanism for central air conditioning ducts. By activating a second motor, a reciprocating screw rotates, causing a cleaning plate to slide back and forth on a sliding rod. A nozzle at the front of the cleaning plate washes the filter screen, removing dust and impurities removed by the cleaning roller. The resulting wastewater and impurities flow into a collection box through a collection trough, effectively preventing dust and impurities from accumulating on the filter screen surface, ensuring normal ventilation of the duct, and improving dust removal efficiency.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A dust removal mechanism for central air conditioning ducts includes a duct body, a filter screen fixedly connected to the inner wall of the duct body, an electric push rod fixedly connected to the top of the duct body, a connecting seat fixedly connected to the drive end of the electric push rod, a cleaning roller rotatably connected to the inner wall of the connecting seat, a first motor fixedly connected to the inner wall of the right end of the connecting seat, the right end of the cleaning roller fixedly connected to the drive end of the first motor, a slide rod fixedly connected to the inner wall of the left end of the duct body, a rinsing assembly provided on the outer wall of the slide rod, a collection box fixedly connected to the bottom of the duct body, the duct body and the collection box communicating through a collection groove, and a collection assembly provided on the inner wall of the collection box.

[0009] Furthermore, the rear end of the cleaning roller is connected to the front end of the filter screen.

[0010] Furthermore, the flushing assembly includes a cleaning plate slidably connected to the outer wall of the slide rod, and a reciprocating screw is rotatably connected to the inner wall of the right end of the air duct body. The inner wall of the right end of the cleaning plate is sleeved on the outer wall of the reciprocating screw.

[0011] Furthermore, the front end of the cleaning plate is provided with multiple nozzles, and the filter screen corresponds to the nozzles.

[0012] Furthermore, a second motor is fixedly connected to the right side of the top end of the duct body, and the top end of the reciprocating screw is fixedly connected to the drive end of the second motor.

[0013] Furthermore, a connecting pipe is fixedly connected to the inner wall of the rear side of the top of the air duct body, a water inlet pipe is fixedly connected to the top of the connecting pipe, a water supply hose is fixedly connected to the bottom of the connecting pipe, and the other end of the water supply hose is fixedly connected to the top of the cleaning plate.

[0014] Furthermore, the collection assembly includes a drawer slidably connected to the inner wall of the collection box, and a handle is fixedly connected to the left end of the drawer.

[0015] Furthermore, a filter plate is fixedly connected to the inner wall of the drawer, and a drain valve is fixedly connected to the bottom left side of the drawer.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, by starting the second motor, the second motor drives the reciprocating screw to rotate, and the reciprocating screw drives the cleaning plate to slide back and forth on the slide bar. The nozzle at the front end of the cleaning plate washes the filter screen, cleaning the dust and impurities cleaned by the cleaning roller. The wastewater and impurities after washing flow into the collection box through the collection trough, which can effectively prevent dust and impurities from accumulating on the surface of the filter screen, ensure the normal ventilation of the air duct, and improve the dust removal effect.

[0018] 2. In this utility model, when it is necessary to clean the sewage and impurities in the collection box, open the drain valve to discharge the sewage and impurities, then pull out the drawer and clean the drawer and filter plate, which facilitates the reuse of the cleaned water. Attached Figure Description

[0019] Figure 1 This is a perspective view of a central air conditioning duct dust removal mechanism proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the duct body in a central air conditioning duct dust removal mechanism proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the cleaning plate in a central air conditioning duct dust removal mechanism proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of the cleaning roller in a central air conditioning duct dust removal mechanism proposed in this utility model.

[0023] Figure 5 This is a schematic diagram of the drawer structure in a central air conditioning duct dust removal mechanism proposed in this utility model.

[0024] Legend:

[0025] 1. Duct body; 2. Filter screen; 3. Electric push rod; 4. Connecting seat; 5. First motor; 6. Cleaning roller; 7. Slide rod; 8. Cleaning plate; 9. Reciprocating screw; 10. Second motor; 11. Connecting pipe; 12. Water inlet pipe; 13. Water supply hose; 14. Collection box; 15. Collection trough; 16. Drawer; 17. Filter plate; 18. Handle; 19. Drain valve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a central air conditioning duct dust removal mechanism, comprising a duct body 1, a filter screen 2 fixedly connected to the inner wall of the duct body 1, an electric push rod 3 fixedly connected to the top of the duct body 1, a connecting seat 4 fixedly connected to the drive end of the electric push rod 3, a cleaning roller 6 rotatably connected to the inner wall of the connecting seat 4, a first motor 5 fixedly connected to the inner wall of the right end of the connecting seat 4, the right end of the cleaning roller 6 fixedly connected to the drive end of the first motor 5, the rear end of the cleaning roller 6 connected to the front end of the filter screen 2, a sliding rod 7 fixedly connected to the inner wall of the left end of the duct body 1, and a cleaning plate 8 slidably connected to the outer wall of the sliding rod 7. A reciprocating screw 9 is rotatably connected to the inner wall of the right end of the duct body 1. The inner wall of the right end of the cleaning plate 8 is sleeved on the outer wall of the reciprocating screw 9. Multiple nozzles are provided at the front end of the cleaning plate 8. The filter screen 2 corresponds to the nozzles. A second motor 10 is fixedly connected to the right side of the top end of the duct body 1. The top end of the reciprocating screw 9 is fixedly connected to the drive end of the second motor 10. A connecting pipe 11 is fixedly connected to the inner wall of the rear side of the top end of the duct body 1. A water inlet pipe 12 is fixedly connected to the top end of the connecting pipe 11. A water supply hose 13 is fixedly connected to the bottom end of the connecting pipe 11. The other end of the water supply hose 13 is fixedly connected to the top end of the cleaning plate 8.

[0028] Specifically, during the dust removal operation of the central air conditioning ducts, the electric push rod 3 is activated first. The electric push rod 3 pushes the connecting seat 4 downward, thereby causing the cleaning roller 6 to descend and contact the filter screen 2. Subsequently, the first motor 5 is started, which drives the cleaning roller 6 to rotate, cleaning the surface of the filter screen 2 and removing the dust and impurities attached to the surface. After cleaning, clean water is injected into the connecting pipe 11 through the water inlet pipe 12. The clean water flows into the cleaning plate 8 through the water supply hose 13, and then the second motor 10 is started. The operation of the second motor 10 drives the reciprocating screw 9 to rotate, and the inner wall of the cleaning plate 8 is provided with a pattern that matches the reciprocating screw 9, enabling the reciprocating screw 9 to drive the cleaning plate 8 to slide up and down on the slide rod 7. The nozzle at the front end of the cleaning plate 8 rinses the filter screen 2, ensuring that the dust and impurities removed by the cleaning roller 6 are thoroughly rinsed away. Finally, the rinsed wastewater and impurities flow into the collection box 14 through the collection trough 15.

[0029] Reference Figure 1 , Figure 2 and Figure 5A collection box 14 is fixedly connected to the bottom of the duct body 1. The duct body 1 and the collection box 14 are connected through a collection groove 15. A drawer 16 is slidably connected to the inner wall of the collection box 14. A handle 18 is fixedly connected to the left end of the drawer 16. A filter plate 17 is fixedly connected to the inner wall of the drawer 16. A drain valve 19 is fixedly connected to the bottom left side of the drawer 16.

[0030] Specifically, drawer 16 is located inside collection tank 14 and is specifically designed to collect wastewater and impurities. Filter plate 17, also located inside drawer 16, effectively intercepts impurities in the wastewater, preventing them from clogging drain valve 19. When it is necessary to empty the wastewater and impurities from collection tank 14, simply open drain valve 19 to discharge the wastewater and impurities, then pull out drawer 16 for cleaning; filter plate 17 should also be cleaned at the same time. In this way, the treated water can be reused, which is both convenient and efficient.

[0031] Working principle: When it is necessary to clean the dust from the central air conditioning duct, first turn off the central air conditioning, then start the electric push rod 3. The electric push rod 3 pushes the connecting seat 4 to move downward, which in turn drives the cleaning roller 6 to move downward and contact the outside of the filter screen 2. At this time, start the first motor 5. The first motor 5 drives the cleaning roller 6 to rotate. The cleaning roller 6 cleans the surface of the filter screen 2 and removes the dust and impurities attached to the surface of the filter screen 2.

[0032] Then, clean water is injected into the connecting pipe 11 through the water inlet pipe 12. The clean water enters the cleaning plate 8 through the water supply hose 13. The second motor 10 is started, and the second motor 10 drives the reciprocating screw 9 to rotate. The inner wall of the cleaning plate 8 is provided with a pattern that matches the reciprocating screw 9, so that the reciprocating screw 9 drives the cleaning plate 8 to slide up and down the slide bar 7. The nozzle at the front end of the cleaning plate 8 washes the filter screen 2, and washes away the dust and impurities cleaned by the cleaning roller 6. The wastewater and impurities after washing flow into the collection box 14 through the collection tank 15.

[0033] The drawer 16 inside the collection box 14 is used to collect sewage and impurities. The filter plate 17 inside the drawer 16 can filter out impurities in the sewage to prevent them from clogging the drain valve 19. When it is necessary to clean the sewage and impurities in the collection box 14, open the drain valve 19 to discharge the sewage and impurities, and then pull out the drawer 16 to clean the drawer 16 and the filter plate 17, so that the cleaned water can be reused.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust removal mechanism for central air conditioning ducts, characterized in that: The system includes a duct body (1), a filter screen (2) fixedly connected to the inner wall of the duct body (1), an electric push rod (3) fixedly connected to the top of the duct body (1), a connecting seat (4) fixedly connected to the driving end of the electric push rod (3), a cleaning roller (6) rotatably connected to the inner wall of the connecting seat (4), a first motor (5) fixedly connected to the inner wall of the right end of the connecting seat (4), the right end of the cleaning roller (6) fixedly connected to the driving end of the first motor (5), a slide rod (7) fixedly connected to the inner wall of the left end of the duct body (1), a rinsing assembly provided on the outer wall of the slide rod (7), a collection box (14) fixedly connected to the bottom of the duct body (1), the duct body (1) and the collection box (14) are connected through a collection groove (15), and a collection assembly is provided on the inner wall of the collection box (14).

2. The dust removal mechanism for central air conditioning ducts according to claim 1, characterized in that: The rear end of the cleaning roller (6) is connected to the front end of the filter screen (2).

3. The dust removal mechanism for central air conditioning ducts according to claim 1, characterized in that: The flushing assembly includes a cleaning plate (8) slidably connected to the outer wall of the slide bar (7), and a reciprocating screw (9) is rotatably connected to the inner wall of the right end of the air duct body (1). The inner wall of the right end of the cleaning plate (8) is sleeved on the outer wall of the reciprocating screw (9).

4. A dust removal mechanism for central air conditioning ducts according to claim 3, characterized in that: The front end of the cleaning plate (8) is provided with multiple nozzles, and the filter (2) corresponds to the nozzles.

5. A dust removal mechanism for central air conditioning ducts according to claim 4, characterized in that: The top right side of the duct body (1) is fixedly connected to a second motor (10), and the top end of the reciprocating screw (9) is fixedly connected to the drive end of the second motor (10).

6. A dust removal mechanism for central air conditioning ducts according to claim 3, characterized in that: A connecting pipe (11) is fixedly connected to the inner wall of the rear side of the top of the air duct body (1). A water inlet pipe (12) is fixedly connected to the top of the connecting pipe (11). A water supply hose (13) is fixedly connected to the bottom of the connecting pipe (11). The other end of the water supply hose (13) is fixedly connected to the top of the cleaning plate (8).

7. A dust removal mechanism for central air conditioning ducts according to claim 1, characterized in that: The collection assembly includes a drawer (16) that is slidably connected to the inner wall of the collection box (14), and a handle (18) is fixedly connected to the left end of the drawer (16).

8. A dust removal mechanism for central air conditioning ducts according to claim 7, characterized in that: A filter plate (17) is fixedly connected to the inner wall of the drawer (16), and a drain valve (19) is fixedly connected to the bottom left side of the drawer (16).