Cleaning device for incrustation in heating and ventilation pipeline

By designing a motor-driven turntable and linkage structure to rotate the descaling brush, combined with a positioning device and electric tracks, fully automatic scale removal of HVAC pipes is achieved, solving the problems of insufficient applicability and automation of existing devices, and improving cleaning efficiency and safety.

CN224168240UActive Publication Date: 2026-04-28SUZHOU BELL WUYOU TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU BELL WUYOU TECHNOLOGY CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing HVAC duct cleaning devices are not suitable for pipes of various diameters and cannot achieve fully automatic cleaning, and require hand-held operation.

Method used

A scale removal device for HVAC pipes was designed. It uses a motor-driven turntable and linkage structure to drive the descaling brush to rotate. Through positioning devices, rollers, electric tracks and other components, it can achieve close contact and fully automatic cleaning of pipes of different diameters. The electric track movement is controlled by a remote control.

Benefits of technology

It enables highly efficient and fully automated cleaning of pipes of different diameters, improving the comprehensiveness and safety of cleaning and reducing the need for manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of pipeline incrustation cleaning, and discloses a heating and ventilation pipeline interior incrustation cleaning device which comprises a middle column, a motor fixedly installed on the middle column, a rotating disc fixedly installed at the output end of the motor, and a first sliding ring, a second sliding ring and a third sliding ring which are sleeved on the middle column. A plurality of first mounting seats are arranged between the first sliding ring and the rotating disc, the two sides of each first mounting seat are rotationally connected with first connecting rods through hinges, the first connecting rod on one side is rotationally connected with the rotating disc through a hinge, and the first connecting rod on the other side is rotationally connected with the first sliding ring through a hinge; and a plurality of second mounting seats are arranged between the second sliding ring and the third sliding ring, the two sides of each second mounting seat are rotationally connected with second connecting rods through hinges correspondingly, through the device, the interiors of pipelines with different diameters can be conveniently cleaned, and the device has the beneficial effects of being efficient and comprehensive in cleaning during cleaning.
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Description

Technical Field

[0001] This utility model belongs to the field of pipe scale removal technology, specifically relating to a device for cleaning scale inside HVAC pipes. Background Technology

[0002] After prolonged use, HVAC pipes accumulate a significant amount of scale. Scale has poor thermal conductivity, which worsens heat transfer on heated surfaces. Due to thermal expansion and contraction and uneven stress, this greatly increases the risk of HVAC pipes bursting or even exploding. Therefore, HVAC pipes typically require annual maintenance and cleaning. Existing pipe descaling devices have generally abandoned manual cleaning with brushes and other tools. Instead, they use a rotating motor to drive a descaling brush to clean the inside of the pipe. However, this still requires handheld operation to ensure the descaling brush is in close contact with the pipe's inner wall and gradually remove the scale. This method is not suitable for pipes of various diameters and cannot achieve fully automatic cleaning. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a device for cleaning scale inside HVAC pipes to solve the problems mentioned in the background art.

[0004] The technical solution adopted by this device for cleaning scale inside HVAC pipes to solve its technical problems is as follows:

[0005] A device for cleaning scale inside HVAC ducts is provided, comprising a central column, on which a motor is fixedly installed, and a turntable is fixedly installed at the output end of the motor. A first slip ring, a second slip ring, and a third slip ring are mounted on the central column. Several first mounting seats are provided between the first slip ring and the turntable. The two sides of the first mounting seats are respectively connected to the first connecting rods via hinges. One side of the first connecting rod is rotatably connected to the turntable via a hinge, and the other side of the first connecting rod is rotatably connected to the first slip ring via a hinge. Several second mounting seats are provided between the second slip ring and the third slip ring. The two sides of the second mounting seats are respectively connected to the second connecting rods via hinges. One side of the second connecting rod is rotatably connected to the second slip ring via a hinge, and the other side of the second connecting rod is rotatably connected to the third slip ring via a hinge. The first slip ring and the second slip ring are rotatably connected via bearings. A positioning device is fixedly installed on the third slip ring. A descaling brush is fixedly installed on the first mounting seats, and a moving component is fixedly installed on the second mounting seats.

[0006] Furthermore, the positioning device includes a collar fixedly installed on the third slip ring, with several screw holes on the collar for threaded installation of the first positioning bolt.

[0007] Furthermore, the actuating component includes a roller mounted on a second mounting base via a pivot.

[0008] Furthermore, a countersunk hole is formed at the end of the central column, and a sliding rod is installed in the countersunk hole. A screw hole is formed on the outer periphery of the central column and a second positioning bolt is threaded on it.

[0009] Furthermore, a handle is fixedly installed on the slide rod.

[0010] Furthermore, the motion component includes an electric track fixedly mounted on a second mounting base.

[0011] Furthermore, it also includes a remote control; the electric tracks are equipped with a wireless receiver and a controller, respectively.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides an example of a scale removal device for the interior of HVAC pipes. In use, after opening the positioning device, the third slip ring is moved to make each descaling brush and roller adhere to the inner wall of the pipe. After fixing the positioning device, the motor can be started. The motor, turntable, and first connecting rod drive the first mounting base and descaling brush to rotate, thereby cleaning the inside of the pipe. This device can conveniently clean the inside of pipes of different diameters and has the characteristics of high efficiency and thorough cleaning.

[0014] 2. In this utility model example, a scale removal device for the inside of a heating and ventilation pipe can be conveniently fixed and limited by a collar by tightening the first positioning bolt.

[0015] 3. The present invention provides a device for cleaning scale inside HVAC pipes, which uses rollers to facilitate the movement of the device.

[0016] 4. The HVAC pipe internal scale cleaning device of this utility model can be extended by means of a sliding rod, which can increase the cleaning length of the HVAC pipe.

[0017] 5. The present invention provides a device for cleaning scale inside HVAC pipes, which allows the central column to be easily moved by pushing a handle.

[0018] 6. The present invention provides a scale removal device for the interior of HVAC pipes, which can be easily controlled to move back and forth inside the HVAC pipes via an electric track.

[0019] 7. The scale removal device inside HVAC pipes according to this utility model example can be controlled synchronously by a remote control and a wireless receiver to move the electric track. Attached Figure Description

[0020] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0023] Figure 3 This is a structural schematic diagram of Embodiment 3 of this utility model.

[0024] In the diagram: 1. Center column; 2. Motor; 3. Turntable; 4. First slip ring; 5. Second slip ring; 6. Third slip ring; 7. First mounting base; 8. First connecting rod; 9. Second mounting base; 10. Second connecting rod; 11. Descaling brush; 12. Collar; 13. First positioning bolt; 14. Roller; 15. Slide rod; 16. Second positioning bolt; 17. Handle; 18. Electric track. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Example 1:

[0028] like Figure 1 As shown, this embodiment provides a scale removal device for internal HVAC pipes, including a central column 1. A motor 2 is fixedly installed on the central column 1, and a turntable 3 is fixedly installed at the output end of the motor 2. A first slip ring 4, a second slip ring 5, and a third slip ring 6 are mounted on the central column 1. Several first mounting seats 7 are provided between the first slip ring 4 and the turntable 3. The two sides of the first mounting seats 7 are respectively connected to the first connecting rods 8 by hinges. One side of the first connecting rod 8 is connected to the turntable 3 by a hinge, and the other side of the first connecting rod 8 is connected to the first slip ring 4 by a hinge. Several second mounting seats 9 are provided between the second slip ring 5 and the third slip ring 6. The two sides of the second mounting seats 9 are respectively connected to the second connecting rods 10 by hinges. One side of the second connecting rod 10 is connected to the second slip ring 5 by a hinge, and the other side of the second connecting rod 10 is connected to the third slip ring 6 by a hinge. The first slip ring 4 and the second slip ring 5 are rotatably connected by bearings. A positioning device is fixedly installed on the third slip ring 6. A descaling brush 11 is fixedly installed on the first mounting seats 7, and a moving component is fixedly installed on the second mounting seats 9.

[0029] In this embodiment, the positioning device includes a collar 12 fixedly installed on the third slip ring 6, and the collar 12 has several screw holes and a first positioning bolt 13 is threadedly installed on it.

[0030] In this embodiment, the action component includes a roller 14 that is rotatably mounted on a second mounting base 9 via a pivot.

[0031] In use, loosen the first positioning bolt 13, move the third slip ring 6 to make each descaling brush 11 and roller 14 fit tightly against the inner wall of the pipe, and after tightening the first positioning bolt 13, start the motor 2. The motor 2, turntable 3 and first connecting rod 8 drive the first mounting base 7 and descaling brush 11 to rotate and clean the inside of the pipe. This device can conveniently clean the inside of pipes of different diameters and has the characteristics of high efficiency and thorough cleaning.

[0032] like Figure 2 As shown, this embodiment provides a scale removal device for the interior of HVAC pipes. Its structure is roughly the same as that of Embodiment 1. The difference is that in this embodiment, a countersunk hole is opened at the end of the central column 1, and a sliding rod 15 is installed in the countersunk hole. A screw hole is opened on the outer periphery of the central column 1 and a second positioning bolt 16 is threadedly installed.

[0033] In this embodiment, a handle 17 is fixedly installed on the slide bar 15.

[0034] When it is necessary to clean to a deeper location, loosen the second positioning bolt 16 to pull the slide rod 15 outward. After adjusting the extension length of the slide rod 15 according to the required length, tighten the second positioning bolt 16 to clean to a deeper location.

[0035] like Figure 3 As shown, this embodiment provides a scale removal device for the interior of HVAC pipes. Its structure is roughly the same as that of Embodiment 1. The difference is that in this embodiment, the moving component includes an electric track 18 fixedly installed on the second mounting base 9.

[0036] In this embodiment, a remote control is also included. The electric track 18 is equipped with a wireless receiver and a controller. Specifically, in this embodiment, the controller is an L298N motor drive module set on the Arduino motherboard, and the wireless receiver is an HC-05 Bluetooth module set on the Arduino motherboard. The output motors of the electric track 18 are respectively connected to the output ports of the L298N motor drive module. The remote control receives the instructions sent by the remote control through the Bluetooth module, and then controls the L298N motor drive module according to the instructions, thereby controlling the operating status of the electric track 18.

[0037] In use, loosen the first positioning bolt 13, move the third slip ring 6 to make each descaling brush 11 and electric track 18 fit tightly against the inner wall of the pipe, and after tightening the first positioning bolt 13, the motor 2 can be started. The motor 2, turntable 3 and first connecting rod 8 drive the first mounting base 7 and descaling brush 11 to rotate to clean the inside of the pipe. At the same time, the electric track 18 can be controlled by the remote control, which makes it convenient for the descaling brush 11 to perform fully automatic cleaning of the deep parts of the pipe.

[0038] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0039] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this utility model, the other technical features will not be described in detail here.

Claims

1. A device for cleaning scale inside HVAC pipes, comprising a central column (1), characterized in that, A motor (2) is fixedly installed on the central column (1), and a turntable (3) is fixedly installed on the output end of the motor (2). A first slip ring (4), a second slip ring (5), and a third slip ring (6) are fitted on the central column (1). Several first mounting seats (7) are provided between the first slip ring (4) and the turntable (3). The two sides of the first mounting seats (7) are respectively connected to the first connecting rods (8) by hinges. The first connecting rod (8) on one side is connected to the turntable (3) by hinges, and the first connecting rod (8) on the other side is connected to the first slip ring (4) by hinges. The second slip ring (5) and the first sliding ring (6) are connected to the turntable (3) by hinges. Several second mounting seats (9) are provided between the third slip ring (6). The two sides of the second mounting seat (9) are respectively connected to the second connecting rod (10) by hinges. The second connecting rod (10) on one side is connected to the second slip ring (5) by hinges, and the second connecting rod (10) on the other side is connected to the third slip ring (6) by hinges. The first slip ring (4) and the second slip ring (5) are connected by bearings. A positioning device is fixedly installed on the third slip ring (6). A descaling brush (11) is fixedly installed on the first mounting seat (7). An action component is fixedly installed on the second mounting seat (9).

2. The scale removal device for internal heating and ventilation pipes according to claim 1, characterized in that, The positioning device includes a collar (12) fixedly installed on the third slip ring (6), with several screw holes opened on the collar (12) and the first positioning bolt (13) threadedly installed.

3. The scale removal device for internal heating and ventilation pipes according to claim 1, characterized in that, The said actuating component includes a roller (14) mounted on a second mounting base (9) via a pivot.

4. The device for cleaning scale inside HVAC pipes according to claim 1, characterized in that, A countersunk hole is opened at the end of the central column (1), and a slide rod (15) is installed in the countersunk hole. A screw hole is opened on the outer periphery of the central column (1) and a second positioning bolt (16) is threaded on it.

5. The scale removal device for internal heating and ventilation pipes according to claim 4, characterized in that, A handle (17) is fixedly installed on the slide bar (15).

6. The scale removal device for internal heating and ventilation pipes according to claim 1, characterized in that, The movement component includes an electric track (18) fixedly mounted on a second mounting base (9).

7. A scale removal device for internal heating and ventilation pipes according to claim 6, characterized in that, It also includes a remote control, with a wireless receiver and controller respectively installed inside the electric track (18).