Pull-type cleaning device for interior of pipeline

By designing an airbag and float block system with balanced air supply and exhaust control, the problem of airbags being unable to pass through narrow sections of pipes was solved, enabling convenient pipe cleaning and reducing control costs.

CN223988846UActive Publication Date: 2026-03-13JIANGXI SHENGJIE MUNICIPAL ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-22
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing technologies suffer from the problem that airbags cannot pass through narrow sections of the tube and are prone to tangling.

Method used

An internal traction cleaning device for pipelines was designed. By controlling the air supply and exhaust balance of the airbag, the airbag moves closely to the inner wall of the pipeline and contracts when it encounters narrow spaces. Combined with a floating block and an electromagnet to assist in passing through narrow spaces, the floating block is moved by the electromagnet adsorption plate and the adsorption plate.

Benefits of technology

This allows airbags to pass through narrow sections of the pipe, reducing the control costs of the cleaning device, facilitating pipe cleaning, and preventing airbags from being lost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a traction type cleaning device for the interior of a pipeline, and relates to the field of pipeline cleaning. The traction type cleaning device for the interior of the pipeline comprises a cleaning head, the cleaning head comprises an air bag and a cleaning piece fixedly attached to the outer surface of the air bag, the inlet end of the air bag is connected with and penetrates through a connecting block, and an exhaust hole used for exhausting is formed in the outer surface of the connecting block; according to the traction type cleaning device for the interior of the pipeline, air is continuously supplied to the air bag in the cleaning head, so that the air bag can be kept in an expansion state, the air bag is exhausted through the exhaust hole, and when the air passes through a valve element of the valve, the air bag is prevented from being blocked. The air supply amount of the air supply mechanism is reduced, so that the air displacement of the air bag is larger than the air supply amount, the air bag is shrunk to reduce the size, the cleaning device can pass through the narrow position of the pipeline, the control cost of the cleaning device can be reduced through the arrangement, and the pipeline is convenient to clean.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline cleaning technology, specifically to a pipeline internal traction cleaning device. Background Technology

[0002] Because the fluid flowing through the pipe may contain impurities that adhere to the inner wall of the pipe, the pipe needs to be cleaned regularly.

[0003] Chinese invention patent application CN217963931U discloses a soft robot for pipe cleaning, including a cleaning hose and an airbag anchor located on the outside of the cleaning hose. A winch is fixedly installed inside the cleaning hose, and a rigid rope is fixed between the winch drum and the airbag anchor. An air supply hose, which is fixedly connected to the airbag anchor, moves through the cleaning hose. A cleaning fluid pipe is also fixedly connected to the cleaning hose. A nozzle is opened on the side wall of the cleaning hose, and a pipe brush is fixedly connected to the outer wall of the cleaning hose. This technical solution is easy to assemble and operate, and the pipe cleaning process is simple and efficient. The airbag anchor is used to position the robot inside the pipe, and the rigid rope is wound by the winch to pull the cleaning hose, which can easily overcome the obstruction of pipe bends, making it easy for the cleaning hose to reach the inside of the pipe. It is suitable for cleaning various household pipes. However, the airbag in this technical solution cannot pass through narrow parts of the pipe after inflation, and needs to be deflated and then inflated to pass through. In addition, there are many pipes connected to the airbag in this technical solution, which are prone to tangling. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an internal traction cleaning device for pipelines, which solves the problem in the prior art that airbags are not convenient to pass through narrow sections of pipelines.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipe internal traction cleaning device, comprising a cleaning head, the cleaning head including an air bladder and a cleaning plate fixedly attached to the outer surface of the air bladder, the inlet end of the air bladder being connected to and passing through a connecting block, the outer surface of the connecting block having an exhaust hole for venting, the end of the connecting block away from the air bladder being fixedly installed with a threaded connecting pipe communicating with the air bladder, the outer surface of the threaded connecting pipe being threadedly connected to a connector, the connector including a relatively rotatable connecting ring, the end of the connecting ring away from the threaded connecting pipe being fixedly installed with an air supply pipe, the outer surface of the air supply pipe being reinforced to prevent traction breakage.

[0007] Furthermore, the connectors are located at both ends of the air supply pipe, and the connectors are fixedly connected to the corresponding connecting parts by a hanging rope.

[0008] Furthermore, the outer surface of the connecting block is provided with an oblique blowing hole that is inclined toward the airbag side, and a gathering ring is provided between the oblique blowing hole and the exhaust hole on the connecting block.

[0009] Furthermore, a floating block is provided on the side of the air supply pipe away from the cleaning head, and a threaded post is fixedly installed on the end of the floating block near the cleaning head, with the connector threaded onto the outer surface of the threaded post.

[0010] Furthermore, the outer surface of the floating block is inlaid with annularly distributed balls, and four sets of electromagnets are symmetrically arranged in annular distribution on the outer surface of the floating block. A camera is installed at the end of the floating block away from the cleaning head. A controller for controlling the operation of the electromagnets is installed inside the floating block. An adsorption plate that attracts the electromagnets when they are energized is installed on the outer surface of the floating block. The adsorption plate is located on the outside of the pipe.

[0011] Furthermore, a buzzer for emitting sound to locate itself within the pipe is fixedly installed on the outer surface of the floating block.

[0012] Furthermore, the width of the adsorption plate is smaller than the gap between two adjacent sets of electromagnets, and a handle is fixedly installed on the outer surface of the adsorption plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This internal traction-type cleaning device continuously supplies air to the airbag in the cleaning head, keeping the airbag in an inflated state. Air is then expelled through the exhaust port. When the air supply and exhaust volume are balanced, the airbag adheres tightly to the inner wall of the pipe. The traction air supply pipe moves the airbag within the pipe, thus cleaning it. When the pipe diameter decreases or the valve core is activated, the air supply is reduced, causing the airbag to exhaust more than it supplies, resulting in airbag contraction and reduced volume. This allows the airbag to pass through narrow sections of the pipe. This design reduces the control cost of the cleaning device and facilitates pipe cleaning.

[0015] 2. The internal traction cleaning device for this pipeline uses a floating block inserted into the pipeline inspection port. The air supply pipe is continuously extended into the pipeline through the inspection port. The floating block is moved by the pressure of the air supply pipe. When it encounters a valve or the floating block cannot move on its own, an electromagnet is activated. The float and the suction plate attract each other, allowing the floating block to stick tightly to one side of the inner wall of the pipeline. As the suction plate moves, it drives the floating block to move, allowing the floating block to be removed from the inspection port at the other end. This design helps the air supply pipe pass through the pipeline. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cleaning head connection of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection of the floating block of this utility model;

[0019] Figure 4 This is a schematic diagram of the gas supply pipe connection of this utility model.

[0020] The components are as follows: 1. Cleaning head; 2. Cleaning plate; 3. Connecting block; 4. Exhaust port; 5. Threaded connecting pipe; 6. Connecting head; 7. Connecting ring; 8. Air supply pipe; 9. Hanging rope; 10. Gathering ring plate; 11. Floating block; 12. Threaded column; 13. Ball bearing; 14. Electromagnet; 15. Camera; 16. Controller; 17. Adsorption plate; 18. Buzzer; 19. Handle; 20. Angled blow hole; 21. Airbag. Detailed Implementation

[0021] 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.

[0022] See Figure 1-4 A pipe internal traction cleaning device includes a cleaning head 1, which includes an air bladder 21 and a cleaning plate 2 fixedly attached to the outer surface of the air bladder 21. A connecting block 3 is connected to and passes through the inlet end of the air bladder 21. An exhaust hole 4 for venting is formed on the outer surface of the connecting block 3. A threaded connecting pipe 5 communicating with the air bladder 21 is fixedly installed at the end of the connecting block 3 away from the air bladder 21. A connecting head 6 is threadedly connected to the outer surface of the threaded connecting pipe 5. The connecting head 6 includes a relatively rotatable connecting ring 7. An air supply pipe 8 is fixedly installed at the end of the connecting ring 7 away from the threaded connecting pipe 5. The air supply pipe 8 connects to an existing air supply mechanism unit, and the cleaning head 1 is continuously vented. The airbag 21 is supplied with air to keep it inflated, and air is expelled through the exhaust port 4. When the air supply and exhaust volume of the air supply unit are balanced, the airbag 21 can adhere tightly to the inner wall of the pipe. The airbag 21 is moved in the pipe by the traction air supply pipe 8 to clean the pipe. When the pipe diameter decreases or the valve core is activated, the air supply volume of the air supply mechanism is reduced so that the exhaust volume of the airbag 21 is greater than the air supply volume, which causes the airbag 21 to shrink and reduce its volume, so that it can pass through narrow parts of the pipe. This design can reduce the control cost of the cleaning device and facilitate the cleaning of the pipe.

[0023] Connector 6 is located at both ends of air supply pipe 8. Connector 6 is fixedly connected to the corresponding connecting part by hanging rope 9. This setting can ensure that the connector 6 will not separate from the device after it falls off the screw connection part, thus preventing the air bag 21 from falling into the pipe.

[0024] The outer surface of the connecting block 3 is provided with an inclined blowing hole 20 that is inclined towards the airbag 21. A gathering ring plate 10 is provided between the inclined blowing hole 20 and the exhaust hole 4. By providing the inclined blowing hole 20, the attached material scraped off the pipe can be blown out to avoid accumulation with the airbag 21.

[0025] A float block 11 is provided on the side of the air supply pipe 8 away from the cleaning head 1. A threaded post 12 is fixedly installed on the end of the float block 11 near the cleaning head 1. The connector 6 is threaded to the outer surface of the threaded post 12. By setting the float block 11 to flow with the fluid in the pipe, the air supply pipe 8 is continuously fed into the pipe, thereby enabling the air supply pipe 8 to pass through the pipe.

[0026] The outer surface of the floating block 11 is inlaid with annularly distributed ball bearings 13. Four sets of electromagnets 14 are symmetrically arranged in annular distribution on the outer surface of the floating block 11. A camera 15 is installed at the end of the floating block 11 away from the cleaning head 1. A controller 16 is installed inside the floating block 11 to control the operation of the electromagnets 14. The controller 16 is wirelessly connected to the outer end of the pipe. The controller 16 is activated by sending a signal through the outer end. An adsorption plate 17 is installed on the outer surface of the floating block 11 to attract the electromagnets 14 when they are energized. The adsorption plate 17 is located outside the pipe. When there is no fluid in the pipe, the air supply pipe 8 is sent into the pipe while the electromagnets 14 are controlled to work. The floating block 11 can be moved by sliding the adsorption plate 17 to guide the air supply pipe 8 through the pipe.

[0027] A buzzer 18 for emitting sound to locate the float block 11 is fixedly installed on the outer surface of the float block 11. The position of the float block 11 in the pipe can be found by setting the buzzer 18. The power supply for the buzzer 18 can be a battery installed in the float block 11, or a wire can be installed to move together with the air supply pipe 8.

[0028] The width of the adsorption plate 17 is smaller than the gap between two adjacent sets of electromagnets 14. A handle 19 is fixedly installed on the outer surface of the adsorption plate 17, which makes it easier to move the adsorption plate 17.

[0029] In use, the float block 11 is inserted into the inspection port of the pipeline, and the air supply pipe 8 is continuously extended into the pipeline through the inspection port. The pressure of the air supply pipe 8 causes the float block 11 to move. When encountering a valve, or when the float block 11 cannot move on its own, the electromagnet 14 is activated, and the adsorption plate 17 and the float block 11 attract each other, allowing the float block 11 to adhere tightly to one side of the inner wall of the pipeline. As the adsorption plate 17 moves, it drives the float block 11 to move, thus allowing the float block 11 to be removed from the inspection port at the other end. This pulls the air supply pipe 8 through the pipeline, and after separating the air supply pipe 8 from the float block 11, it is connected to the air supply device. The other end of the air supply pipe 8 is connected to the cleaning head 1, which is placed in the pipeline. Inside the pipe, the airbag 21 is inflated to keep it in an expanded state, and the airbag 21 is vented through the vent hole 4. When the air supply and venting volume of the air supply unit are balanced, the airbag 21 can adhere tightly to the inner wall of the pipe. The airbag 21 is moved in the pipe by the traction air supply pipe 8 to clean the pipe. When the pipe diameter decreases or the valve core is activated, the air supply volume of the air supply mechanism is reduced so that the venting volume of the airbag 21 is greater than the supply volume, which causes the airbag 21 to shrink and reduce its volume, thus allowing it to pass through narrow parts of the pipe. This design reduces the control cost of the cleaning device and facilitates pipe cleaning.

[0030] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pipeline internal tractor cleaning device comprising a cleaning head (1), characterised in that: The cleaning head (1) includes the air bag (21) and the cleaning sheet (2) fixedly attached to the outer surface of the air bag (21), the inlet end of the air bag (21) is connected and penetrates the connecting block (3), the outer surface of the connecting block (3) is provided with the exhaust hole (4) for exhausting air, and the end of the connecting block (3) away from the air bag (21) is fixedly installed with the threaded connecting pipe (5) communicated with the air bag (21). The outer surface of the threaded connecting pipe (5) is threadedly connected with the connecting head (6), the connecting head (6) includes the connecting ring (7) capable of relatively rotating, and the end of the connecting ring (7) away from the threaded connecting pipe (5) is fixedly installed with the air supply pipe (8).

2. A pipeline internal tractor cleaning apparatus according to claim 1, wherein: The connecting head (6) is arranged at both ends of the air supply pipe (8), and the connecting head (6) and the corresponding connecting part are fixedly connected through the hanging rope (9).

3. A pipeline internal tractor cleaning apparatus as claimed in claim 2, wherein: The outer surface of the connecting block (3) is provided with the inclined blowing hole (20) inclined to the side of the air bag (21), and the connecting block (3) is provided with the folding ring piece (10) between the inclined blowing hole (20) and the exhaust hole (4).

4. A pipeline internal tractor cleaning apparatus according to any one of claims 1 to 3, wherein: The side of the air supply pipe (8) away from the cleaning head (1) is provided with the floating block (11), the end of the floating block (11) close to the cleaning head (1) is fixedly installed with the threaded column (12), and the connecting head (6) is threadedly connected to the outer surface of the threaded column (12).

5. A pipeline internal tractor cleaning apparatus as claimed in claim 4, wherein: The outer surface of the floating block (11) is inlaid with the annularly distributed rolling balls (13), the outer surface of the floating block (11) is annularly distributed with four groups of electromagnets (14) symmetrically arranged, the end of the floating block (11) away from the cleaning head (1) is provided with the camera (15), the inside of the floating block (11) is provided with the controller (16) for controlling the work of the electromagnets (14), the outer surface of the floating block (11) is provided with the adsorption plate (17) attracted to each other when the electromagnets (14) are powered, and the adsorption plate (17) is located on the outside of the pipeline.

6. A pipe interior tractor cleaning device according to claim 5, characterized in that: The outer surface of the floating block (11) is fixedly installed with the buzzer (18) for emitting sound to position in the pipeline.

7. A pipe interior tractor cleaning device according to claim 6, characterized in that: The width of the adsorption plate (17) is less than the gap between the adjacent two groups of electromagnets (14), and the outer surface of the adsorption plate (17) is fixedly installed with the handle (19).

Citation Information

Patent Citations

  • Pipeline cleaning soft robot

    CN217963931U