Central air conditioner air outlet pipeline cleaning device

By introducing an electric telescopic rod and a mixing blade into the central air conditioning duct cleaning device, the synergistic effect of the rotation of the cleaning plate and the spraying of cleaning fluid is achieved, solving the problem of poor cleaning effect in the existing technology and improving cleaning efficiency and effect.

CN224372346UActive Publication Date: 2026-06-19SHENZHEN HUAHEXING ELECTROMECHANICAL ENVIRONMENTAL PROTECTION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN HUAHEXING ELECTROMECHANICAL ENVIRONMENTAL PROTECTION CO LTD
Filing Date
2025-07-01
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing central air conditioning duct cleaning devices lack efficient cleaning structures during use, resulting in residual impurities and poor cleaning performance.

Method used

A central air conditioning duct cleaning device was designed. It uses an electric telescopic rod to drive the cleaning plate to swing and rotate inside the duct, and mixes the cleaning liquid with a mixing blade. Combined with the spray nozzle, the cleaning liquid is sprayed, and multiple structures work together to improve the cleaning effect.

Benefits of technology

It achieves efficient cleaning in both horizontal and oscillating states, ensuring no oil residue remains and improving cleaning efficiency and effectiveness.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224372346U_ABST
    Figure CN224372346U_ABST
Patent Text Reader

Abstract

This utility model discloses a central air conditioning duct cleaning device, belonging to the field of duct cleaning technology. It includes a housing, a placement plate fixedly connected to the bottom of the housing, a support plate fixedly connected to the bottom of the housing, and an electric telescopic rod fixedly connected inside the support plate. A docking shaft is fixedly connected to the output end of the electric telescopic rod, and a fixing plate is movably disposed on the surface of the docking shaft. A cleaning plate is fixedly connected to the end of the fixing plate. In use, the duct to be cleaned is placed on the placement plate, and then the electric telescopic rod is activated, causing the electric telescopic rod to move the docking shaft, the fixing plate, and the cleaning plate. At this time, the cleaning plate and the fixing plate swing and rotate around the docking shaft under the action of the push block and auxiliary block. The cleaning plate not only moves horizontally but also swings and cleans, resulting in better cleaning effect, higher work efficiency, and no oil residue.
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Description

Technical Field

[0001] This utility model relates to the field of air outlet duct cleaning technology, specifically a central air conditioning air outlet duct cleaning device. Background Technology

[0002] Central air conditioning is a type of air conditioning that centrally processes air to provide a comfortable indoor environment for large spaces or multiple rooms. The air outlet ducts of a central air conditioning system are an important component. During the production process of the air outlet ducts, oil stains and other impurities may remain. At this time, it is necessary to use an air outlet duct cleaning device to clean the air outlet ducts. If the cleaning is not efficient, impurities will still remain. In order to overcome this defect, prior art 1 (Chinese patent application with application number 202120809993.2 and application date of 2021-04-20) provides a duct cleaning device for central air conditioning. During use, it can conveniently and quickly remove the dirt adhering to the inner wall of the duct to ensure the cleanliness of the duct surface and avoid affecting the normal operation of the air conditioning.

[0003] During the cleaning process, if the cleaning plate simply moves, the cleaning effect will be insufficient. The device in the above application does not have a highly efficient cleaning structure for the cleaning plate, resulting in impurities remaining and a poor cleaning effect. Utility Model Content

[0004] The purpose of this utility model is to provide a central air conditioning duct cleaning device to solve the problem mentioned in the background art that, during use, there are still impurities remaining and the cleaning effect is poor because the device does not have a highly efficient cleaning structure with a cleaning plate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a central air conditioning duct cleaning device, comprising a housing, a placement plate fixedly connected to the bottom of the housing, a support plate fixedly connected to the bottom of the housing, and an electric telescopic rod fixedly connected inside the support plate; a docking shaft fixedly connected to the output end of the electric telescopic rod, a fixing plate movably disposed on the surface of the docking shaft, and a cleaning plate fixedly connected to the end of the fixing plate; a material box fixedly connected to the bottom of the housing, a connecting shaft rotatably disposed inside the material box, and a mixing blade fixedly connected to the surface of the connecting shaft; a force-bearing plate movably disposed inside the material box, and a through hole opened on the surface of the force-bearing plate.

[0006] Preferably, a long pin is fixedly connected to the inner wall of the outer shell, and a push block is fixedly connected to the upper surface of the long pin, and the push blocks are evenly distributed on the surface of the long pin; a connecting plate is fixedly connected to the inner wall of the cleaning plate.

[0007] Preferably, an auxiliary block is fixedly connected to the lower surface of the connecting plate, and the surfaces of the auxiliary block and the push block are both arc-shaped structures. A limit block is fixedly connected to the surface of the docking shaft, and a limit groove is formed inside the fixing plate.

[0008] Preferably, a water pump is fixedly connected to the inner wall of the material box, and the output end of the water pump is connected to the cleaning plate through an external hose. The surface of the cleaning plate is provided with a brush, and the surface of the cleaning plate is provided with nozzles at equal angles.

[0009] Preferably, a traction rope is fixedly connected to the surface of the docking shaft, and the other side of the traction rope is wound and fixedly connected to the surface of the connecting shaft, and the mixing blades are evenly distributed on the surface of the connecting shaft.

[0010] Preferably, a circular plate is fixedly connected to the surface of the connecting shaft, and an external block is fixedly connected to the surface of the circular plate, with the external blocks symmetrically distributed on both sides of the circular plate. A limit rod is fixedly connected to the inner wall of the material box.

[0011] Preferably, the force-bearing plate is sleeved and connected to the surface of the limiting rod, and a connecting spring is fixedly connected to the surface of the force-bearing plate. The other side of the connecting spring is fixedly connected to the inner wall of the material box, and the through holes are evenly distributed on the surface of the force-bearing plate.

[0012] Preferably, a torsion spring is fixedly connected to the surface of the connecting shaft, and the other side of the torsion spring is fixedly connected to the inner wall of the material box.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the central air conditioning duct cleaning device adopts a novel structural design, the specific details of which are as follows:

[0014] (1) In the process of using the central air conditioning duct cleaning device, the duct to be cleaned is placed on the placement plate, and then the electric telescopic rod is started, so that the electric telescopic rod drives the docking shaft, the fixed plate and the cleaning plate to move. At this time, the cleaning plate and the fixed plate swing and rotate around the docking shaft under the action of the push block and the auxiliary block. At this time, the cleaning plate not only moves in the horizontal direction, but is also in the swing cleaning state, which has a better cleaning effect, high work efficiency and no oil stains remain.

[0015] Furthermore, the push blocks are evenly distributed on the surface of the long pin, which increases the frequency of the cleaning plate's oscillation, thereby improving the cleaning effect of the cleaning plate and increasing work efficiency.

[0016] (2) In the process of moving the docking shaft, the docking shaft drives the connecting shaft to rotate inside the material box through the traction rope. At this time, the connecting shaft stirs the cleaning liquid through the mixing blade, which facilitates the mixing of the cleaning liquids. The pump inside the material box inputs the cleaning liquid into the cleaning plate. The cleaning plate sprays the cleaning liquid through the nozzle, which improves the cleaning effect.

[0017] Furthermore, when the connecting shaft rotates, it will drive the circular plate and the outer block to rotate synchronously. At this time, the outer block will intermittently push the force plate, and then the force plate will reciprocate linearly in the horizontal direction under the action of the thrust, the limit rod and the connecting spring. At this time, the force plate stirs the cleaning liquid through the through hole, which plays an auxiliary role in mixing the material and optimizes the cleaning effect of the cleaning liquid.

[0018] (3) When the connecting shaft rotates, the central air conditioning duct cleaning device will stretch the torsion spring. When the docking shaft moves back, the connecting shaft will rotate under the action of the torsion spring. At this time, the connecting shaft will rewind the traction rope, which is convenient for the next use of the traction rope. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the connection structure between the outer shell and the placement plate of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the electric telescopic rod and the docking shaft of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure of the connecting plate and auxiliary block of this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the connection structure between the connecting shaft and the hybrid blade of this utility model;

[0024] Figure 6 This is a schematic diagram of the material box structure in cross-section of this utility model;

[0025] Figure 7 This utility model Figure 6 Enlarged structural diagram at point B.

[0026] In the diagram: 1. Outer shell; 2. Placement plate; 3. Electric telescopic rod; 4. Support plate; 5. Connecting shaft; 6. Fixing plate; 7. Cleaning plate; 8. Long pin; 9. Material box; 10. Connecting plate; 11. Auxiliary block; 12. Push block; 13. Nozzle; 14. Traction rope; 15. Limiting block; 16. Limiting groove; 17. Connecting shaft; 18. Mixing blade; 19. Limiting rod; 20. Force plate; 21. Connecting spring; 22. Through hole; 23. Circular plate; 24. External connecting block; 25. Torsion spring. Detailed Implementation

[0027] 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.

[0028] This utility model provides the following technical solution: a central air conditioning outlet duct cleaning device.

[0029] Example 1: By using the long pin 8, push block 12, and auxiliary block 11, the cleaning plate 7 can be kept in a swinging state during linear movement, thus optimizing the cleaning effect. Figures 1-4 As shown, the device includes a housing 1, a placement plate 2 fixedly connected to the bottom of the housing 1, a support plate 4 fixedly connected to the bottom of the housing 1, and an electric telescopic rod 3 fixedly connected inside the support plate 4; a docking shaft 5 fixedly connected to the output end of the electric telescopic rod 3, a fixing plate 6 movably disposed on the surface of the docking shaft 5, and a cleaning plate 7 fixedly connected to the end of the fixing plate 6; a long pin 8 fixedly connected to the inner wall of the housing 1, a push block 12 fixedly connected to the upper surface of the long pin 8, and the push blocks 12 are evenly distributed on the surface of the long pin 8; and a connecting plate 10 fixedly connected to the inner wall of the cleaning plate 7.

[0030] An auxiliary block 11 is fixedly connected to the lower surface of the connecting plate 10, and the surfaces of the auxiliary block 11 and the push block 12 are both arc-shaped. A limit block 15 is fixedly connected to the surface of the docking shaft 5. A limit groove 16 is opened inside the fixing plate 6. A water pump is fixedly connected to the inner wall of the material box 9, and the output end of the water pump is connected to the cleaning plate 7 through an external hose. A brush is provided on the surface of the cleaning plate 7, and nozzles 13 are provided at equal angles on the surface of the cleaning plate 7.

[0031] like Figure 1 and Figure 2As shown, during use, the pipe to be cleaned is placed on the placement plate 2. Then, the electric telescopic rod 3 on the surface of the support plate 4 is activated, causing the electric telescopic rod 3 to drive the docking shaft 5, the fixing plate 6, and the cleaning plate 7 to move into the pipe. At this time, the connecting plate 10 on the surface of the cleaning plate 7 moves synchronously, and the auxiliary block 11 on the lower surface of the connecting plate 10 is pushed by the push block 12 on the upper surface of the long pin 8. At this time, the connecting plate 10 and the cleaning plate 7 rotate around the docking shaft 5 under the action of the thrust, and the limiting block 15 and the limiting groove 16 make the rotation of the cleaning plate 7 more stable (e.g., Figure 4 As shown), when the pusher 12 stops pushing the auxiliary block 11, the cleaning plate 7 and the connecting plate 10 rotate under their own gravity, repeating the above process. The cleaning plate 7 and the fixing plate 6 swing and rotate around the docking shaft 5. At this time, the cleaning plate 7 not only moves in the horizontal direction, but is also in a swing cleaning state, which has a better cleaning effect, high work efficiency, and does not leave oil stains.

[0032] Example 2: Unlike Example 1, the mixing blade 18 and the force plate 20 are designed to achieve multi-directional mixing of the cleaning fluid, facilitating optimal cleaning performance. Figures 5-7 As shown, a material box 9 is fixedly connected to the bottom of the outer shell 1, and a connecting shaft 17 is rotatably arranged inside the material box 9, and a mixing blade 18 is fixedly connected to the surface of the connecting shaft 17; a force plate 20 is movably arranged inside the material box 9, and a through hole 22 is opened on the surface of the force plate 20; a traction rope 14 is fixedly connected to the surface of the docking shaft 5, and the other side of the traction rope 14 is wound and fixedly connected to the surface of the connecting shaft 17; the mixing blades 18 are evenly distributed on the surface of the connecting shaft 17.

[0033] A circular plate 23 is fixedly connected to the surface of the connecting shaft 17, and an external block 24 is fixedly connected to the surface of the circular plate 23. The external blocks 24 are symmetrically distributed on both sides of the circular plate 23. A limit rod 19 is fixedly connected to the inner wall of the material box 9. A force plate 20 is sleeved on the surface of the limit rod 19, and a connecting spring 21 is fixedly connected to the surface of the force plate 20. The other side of the connecting spring 21 is fixedly connected to the inner wall of the material box 9. Through holes 22 are evenly distributed on the surface of the force plate 20.

[0034] Combination Figure 3 and Figure 5It can be seen that during the movement of the docking shaft 5, the docking shaft 5 drives the connecting shaft 17 to rotate inside the material box 9 via the traction rope 14. At this time, the connecting shaft 17 stirs the cleaning liquid through the mixing blade 18, which facilitates the mixing of the cleaning liquids. Meanwhile, the pump inside the material box 9 inputs the cleaning liquid into the cleaning plate 7. The cleaning plate 7 sprays the cleaning liquid through the nozzle 13, which improves the cleaning effect. When the connecting shaft 17 rotates, it will drive the circular plate 23 and the outer block 24 to rotate synchronously. At this time, the outer block 24 will intermittently push the force plate 20. When the force plate 20 is pushed, it moves in the direction of squeezing the connecting spring 21. When the force plate 20 is not pushed, it moves back under the action of the limit rod 19 and the connecting spring 21 (e.g., Figure 5 and Figure 6 As shown in the figure, the force plate 20 then reciprocates in a linear motion in the horizontal direction. At this time, the force plate 20 stirs the cleaning liquid through the through hole 22, which plays an auxiliary role in mixing the materials and optimizes the cleaning effect of the cleaning liquid.

[0035] Example 3: Unlike Example 2, the torsion spring 25 allows the traction rope 14 to be quickly wound up, such as... Figure 7 As shown, a torsion spring 25 is fixedly connected to the surface of the connecting shaft 17, and the other side of the torsion spring 25 is fixedly connected to the inner wall of the material box 9.

[0036] When the connecting shaft 17 rotates, it stretches the torsion spring 25. When the docking shaft 5 moves back, the connecting shaft 17 rotates under the action of the torsion spring 25. At this time, the connecting shaft 17 will rewind the traction rope 14 for the next use of the traction rope 14.

[0037] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A central air conditioning duct cleaning device, comprising a housing (1), wherein a placement plate (2) is fixedly connected to the bottom of the housing (1), and a support plate (4) is fixedly connected to the bottom of the housing (1), and an electric telescopic rod (3) is fixedly connected inside the support plate (4). Its features are: The output end of the electric telescopic rod (3) is fixedly connected to a docking shaft (5), and a fixing plate (6) is movably provided on the surface of the docking shaft (5), and a cleaning plate (7) is fixedly connected to the end of the fixing plate (6). The bottom of the outer shell (1) is fixedly connected to a material box (9), and a connecting shaft (17) is rotatably provided inside the material box (9), and a mixing blade (18) is fixedly connected to the surface of the connecting shaft (17); The material box (9) is equipped with a force plate (20) inside, and the surface of the force plate (20) is provided with through holes (22).

2. The central air conditioning duct cleaning device according to claim 1, characterized in that: A long pin (8) is fixedly connected to the inner wall of the outer shell (1), and a push block (12) is fixedly connected to the upper surface of the long pin (8). The push blocks (12) are evenly distributed on the surface of the long pin (8). A connecting plate (10) is fixedly connected to the inner wall of the cleaning plate (7).

3. The central air conditioning duct cleaning device according to claim 2, characterized in that: An auxiliary block (11) is fixedly connected to the lower surface of the connecting plate (10), and the surfaces of the auxiliary block (11) and the push block (12) are both arc-shaped structures. A limit block (15) is fixedly connected to the surface of the docking shaft (5), and a limit groove (16) is opened inside the fixing plate (6).

4. The central air conditioning outlet duct cleaning device according to claim 1, characterized in that: A water pump is fixedly connected to the inner wall of the material box (9), and the output end of the water pump is connected to the cleaning plate (7) through an external hose. The surface of the cleaning plate (7) is provided with a brush, and the surface of the cleaning plate (7) is provided with nozzles (13) at equal angles.

5. The central air conditioning outlet duct cleaning device according to claim 1, characterized in that: The surface of the docking shaft (5) is fixedly connected to a traction rope (14), and the other side of the traction rope (14) is wrapped and fixedly connected to the surface of the connecting shaft (17). The mixing blades (18) are evenly distributed on the surface of the connecting shaft (17).

6. The central air conditioning outlet duct cleaning device according to claim 1, characterized in that: A circular plate (23) is fixedly connected to the surface of the connecting shaft (17), and an external block (24) is fixedly connected to the surface of the circular plate (23). The external blocks (24) are symmetrically distributed on both sides of the circular plate (23). A limit rod (19) is fixedly connected to the inner wall of the material box (9).

7. The central air conditioning outlet duct cleaning device according to claim 6, characterized in that: The limiting rod (19) is sleeved with the force plate (20), and the force plate (20) is fixedly connected with the connecting spring (21). The other side of the connecting spring (21) is fixedly connected to the inner wall of the material box (9). The through holes (22) are evenly distributed on the surface of the force plate (20).

8. The central air conditioning outlet duct cleaning device according to claim 1, characterized in that: A torsion spring (25) is fixedly connected to the surface of the connecting shaft (17), and the other side of the torsion spring (25) is fixedly connected to the inner wall of the material box (9).