Water pipe inner wall cleaning device and method

Abstract

The invention discloses a water pipe inner wall cleaning device, and belongs to the technical field of water pipe cleaning. A water pipe inner wall cleaning device comprises a base and further comprises a pipe winding roller rotationally connected to the base, and a first pipeline is wound around the pipe winding roller; the second pipeline is fixedly connected to the output end of the first pipeline, a mounting block is rotationally connected to the second pipeline, a jet head is fixedly connected to the side wall of the mounting block, the jet head is obliquely arranged on the side wall of the jet head, and a pressure control valve is arranged on the jet head; the air bag is slidably connected to the first pipeline, and one end of the air bag is fixedly connected with the mounting block; air is injected into the air bag to expand the air bag, so that the scraping plate is attached to the inner wall of the water pipe, the scraping plate abuts against the inner wall of the water pipe through expansion of the air bag, the inner walls of the water pipes with different inner diameters can be cleaned conveniently, the cleaning head does not need to be replaced, the cleaning efficiency is improved, and the cleaning cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of water pipe cleaning, and particularly relates to a device and method for cleaning the inner wall of a water pipe. Background Art

[0002] During the long-term use of water pipes, dirt and sediments on the inner wall of the water pipes may affect water quality, and even breed bacteria and other harmful microorganisms. Moreover, the dirt and sediments on the inner wall of the pipes may cause pipe corrosion and wear. Cleaning the inner wall of the water pipes can improve the hygiene and quality of the water supply, extend the service life of the pipes, and reduce maintenance costs. Therefore, it is necessary to frequently clean the inner wall of the water pipes.

[0003] Existing cleaning devices generally only apply to pipes of specific sizes or shapes and cannot flexibly meet the cleaning requirements of different pipes. When cleaning pipes of different sizes, although the cleaning head can be used to clean pipes of different sizes, it increases the cost of cleaning the inner wall of the water pipes, and it takes a certain amount of time to replace different cleaning heads, reducing the overall efficiency of cleaning the inner wall of the water pipes. In order to facilitate the cleaning of the inner walls of water pipes of different sizes and reduce the cleaning cost, a device and method for cleaning the inner wall of a water pipe are designed herein. Summary of the Invention

[0004] The present invention is proposed to solve the problem that the existing pipe cleaning device cannot flexibly clean pipes of different sizes, and provides a device and method for cleaning the inner wall of a water pipe.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for cleaning the inner wall of a water pipe, including a base, and further including: a pipe winding roller rotatably connected to the base, on which a first pipe is wound; a second pipe fixedly connected to the output end of the first pipe, on which an installation block is rotatably connected, a jet head is fixedly connected to the side wall of the installation block, the jet head is inclined on the side wall of the jet head, and a pressure control valve is arranged on the jet head; an airbag slidably connected to the first pipe, one end of the airbag is fixedly connected to the installation block, the other end of the airbag is fixedly connected to a sealing rotating ring, and the sealing rotating ring is slidably connected to the first pipe; an air hole communicating with the inner cavity of the airbag is formed on the first pipe; a scraping plate fixedly connected to the outer wall of the airbag; a driving part arranged on the base for driving the airbag to rotate and move.

[0007] Preferably, it further includes a centrifugal rod fixedly connected to the inner wall of the airbag.

[0008] To facilitate the driving of the airbag to rotate, preferably, the driving part includes a mounting box fixedly connected to the base. A piston cylinder is fixedly connected inside the mounting box. A piston plate is slidably connected inside the piston cylinder. A crank is rotatably connected to the piston plate. It also includes a motor fixedly connected inside the mounting box. The output end of the motor is fixedly connected to a driving shaft. A crankshaft is fixedly connected to the driving shaft. The crank is rotatably connected to the crankshaft. The input end of the piston cylinder is fixedly connected to an air inlet pipe extending outside the mounting box. A jet pipe is fixedly connected inside the mounting box. The jet opening of the jet pipe faces the motor. The output ends of multiple groups of piston cylinders are all connected to the jet pipe. A three-way control valve fixedly connected to the top of the mounting box and communicating with the mounting box. The first output end of the three-way control valve is fixedly connected to a third pipe. The output end of the third pipe is fixedly connected to a rotary joint. An air cavity is formed in the pipe winding roller. The output end of the rotary joint is fixedly connected to the pipe winding roller and communicates with the air cavity.

[0009] To facilitate the collection of the first pipe, preferably, it further includes a reciprocating lead screw rotatably connected to the base. A mounting seat is slidably connected to the base. The mounting seat is threadedly connected to the reciprocating lead screw. A limiting ring is fixedly connected to the top of the mounting seat. The first pipe passes through the limiting ring.

[0010] To further facilitate the collection of the first pipe, a second impeller box is fixedly connected to the side wall of the base. The reciprocating lead screw extends into the second impeller box and is fixedly connected to a second impeller blade.

[0011] To facilitate the cleaning of the first pipe, preferably, a diversion cavity is formed in the limiting ring. An exhaust groove communicating with the diversion cavity is formed on the limiting ring. The exhaust groove faces the outer wall of the first pipe. The diversion cavity is connected to the exhaust end of the second impeller box through a corrugated expansion pipe.

[0012] To further facilitate the collection of the first pipe, a first impeller box is fixedly connected to the side wall of the base. A transmission shaft is fixedly connected to the side wall of the pipe winding roller. The transmission shaft is rotatably connected to the base. The transmission shaft extends into the first impeller box and is fixedly connected to a first impeller blade. The input end of the first impeller box is fixedly connected to the second output end of the three-way control valve through a fourth pipe. The exhaust end of the first impeller box is connected to the intake end of the second impeller box through a fifth pipe.

[0013] Preferably, a flow channel for the air flow to pass through is left between the first impeller blade and the inner wall of the first impeller box. And a second resistance ring is fixedly connected to the transmission shaft. A first resistance ring is fixedly connected to the base. The second resistance ring and the first resistance ring are rotatably connected.

[0014] Preferably, a pull rod is fixedly connected to the side wall of the base, and a universal locking wheel is fixedly connected to the bottom of the base.

[0015] A pipe cleaning method includes the following steps:

[0016] Step 1: Adjust the exhaust pressure of the pressure control valve according to different water pipes;

[0017] Step 2: Insert the airbag into the water pipe to be cleaned, start the motor to supply air to the airbag, and make the airbag expand until the air flow reaches the threshold value of the pressure control valve and then sprays out from the jet head. The gas sprayed out from the jet head drives the airbag to rotate and move forward, and drives the scraper to clean the inner wall of the water pipe;

[0018] Step 3: Manually hold the first pipe, cooperate with the high-pressure air flow sprayed out from the jet head, and under the restriction of the first resistance ring and the second resistance ring, release the first pipe at a constant speed;

[0019] Step 4: Adjust the gas flow path through the three-way control valve, so that the driving part stops supplying air to the inside of the airbag and starts supplying air to the inside of the impeller box, wind up the first pipe, and take out the airbag from the inside of the water pipe.

[0020] Compared with the prior art, the present invention provides a water pipe inner wall cleaning device, which has the following beneficial effects:

[0021] 1. For this water pipe inner wall cleaning device, by injecting air into the airbag, the airbag expands, so that the scraper is attached to the inner wall of the water pipe. The airbag expansion makes the scraper abut against the inner wall of the water pipe, so as to facilitate the cleaning of the inner walls of water pipes with different inner diameters without replacing the cleaning head, thereby improving the cleaning efficiency and reducing the cleaning cost;

[0022] 2. For this water pipe inner wall cleaning device, the high-pressure air flow that drives the rotation and movement of the airbag blows towards the inner wall of the water pipe, and performs high-pressure flushing on the inner wall of the water pipe, making stains such as biofilms, water scales, and sediments adsorbed on the inner wall of the water pipe become loose, reducing the difficulty of scraping by the scraper;

[0023] 3. For this water pipe inner wall cleaning device, the exhausted air flow passes through the middle of multiple inclined scrapers, thereby further driving the rotation of the airbag and the scraper, further utilizing the kinetic energy of the air flow, and when the air flow is exhausted, flushing the side wall of the scraper, cleaning the stains on the scraper that are cleaned from the inner wall of the water pipe and adsorbed on the scraper, and avoiding the accumulation of too much stains on the scraper and reducing the cleaning efficiency of the scraper for the water pipe. Description of the Drawings

[0024] Figure 1 is a schematic three-dimensional structure of a water pipe inner wall cleaning device proposed by the present invention Figure 1 ;

[0025] Figure 2 Schematic diagram of the three-dimensional structure of a water pipe inner wall cleaning device proposed by the present invention Figure 2 ;

[0026] Figure 3 Schematic diagram of the three-dimensional structure of a water pipe inner wall cleaning device proposed by the present invention Figure 3 ;

[0027] Figure 4 A water pipe inner wall cleaning device proposed by the present invention Figure 3 Schematic diagram of the structure of part A in the device;

[0028] Figure 5 Right cross-sectional view of a water pipe inner wall cleaning device proposed by the present invention;

[0029] Figure 6 Schematic diagram of the structure of the pipe winding roller of a water pipe inner wall cleaning device proposed by the present invention;

[0030] Figure 7 Schematic diagram of the structure of the driving part of a water pipe inner wall cleaning device proposed by the present invention;

[0031] Figure 8 Schematic diagram of the three-dimensional structure of the airbag of a water pipe inner wall cleaning device proposed by the present invention;

[0032] Figure 9 Schematic diagram of the three-dimensional cross-section of the airbag of a water pipe inner wall cleaning device proposed by the present invention;

[0033] Figure 10 Schematic diagram of the structure of the limiting ring of a water pipe inner wall cleaning device proposed by the present invention;

[0034] Figure 11 Schematic diagram of the structure of the resistance ring of a water pipe inner wall cleaning device proposed by the present invention.

[0035] In the figure: 1. Base; 2. Pipe winding roller; 3. First pipe; 4. Second pipe; 5. Installation block; 6. Jet head; 7. Airbag; 8. Centrifugal rod; 9. Scraper; 10. Air hole; 11. Sealing rotary ring; 12. Air cavity; 13. Rotary joint; 14. Transmission shaft; 15. Installation box; 16. Motor; 17. Driving shaft; 18. Crankshaft; 19. Piston cylinder; 20. Jet pipe; 21. Intake pipe; 22. Three-way control valve; 23. Third pipe; 24. First impeller box; 25. Fourth pipe; 26. First impeller blade; 27. Reciprocating lead screw; 28. Installation seat; 29. Limiting ring; 30. Diverging cavity; 31. Exhaust groove; 32. Second impeller box; 33. Second impeller blade; 34. Fifth pipe; 35. Corrugated expansion pipe; 36. Piston plate; 37. Crank; 38. First resistance ring; 39. Second resistance ring; 40. Pull rod; 41. Universal locking wheel. Detailed implementation manners

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0037] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0038] Embodiment:

[0039] Referring to Figures 1-11 , a water pipe inner wall cleaning device, including a base 1, further including: a pipe winding roller 2 rotatably connected to the base 1, with a first pipe 3 wound around the pipe winding roller 2; a second pipe 4 fixedly connected to the output end of the first pipe 3, with a mounting block 5 rotatably connected to the second pipe 4, a jet head 6 fixedly connected to the side wall of the mounting block 5, the jet head 6 being inclined on the side wall of the jet head 6, and a pressure control valve being provided on the jet head 6; an airbag 7 slidably connected to the first pipe 3, one end of the airbag 7 being fixedly connected to the mounting block 5, the other end of the airbag 7 being fixedly connected to a sealing rotary ring 11, the sealing rotary ring 11 being slidably connected to the first pipe 3; a pore 10 opened on the first pipe 3 and communicating with the inner cavity of the airbag 7; a scraping plate 9 fixedly connected to the outer wall of the airbag 7; a driving part provided on the base 1 for driving the airbag 7 to rotate and move.

[0040] Insert the airbag 7 into the water pipe, then hold the first pipe 3 by hand, and start the driving part. The driving part supplies air into the first pipe 3. The air flow enters the inside of the airbag 7 through the pore 10. Under the action of the pressure control valve, the air pressure inside the airbag 7 increases, causing the airbag 7 to expand. The expansion of the airbag 7 makes the scraping plate 9 adhere to the inner wall of the water pipe. When the airbag 7 expands and the air pressure inside the airbag 7 reaches the preset threshold of the pressure control valve, high-pressure gas is ejected from the jet head 6, spraying the air flow towards the airbag 7 and onto the inner wall of the water pipe around the airbag 7. Under the reaction force, the airbag 7 rotates and moves towards the inside of the water pipe. During this process, the airbag 7 drives the scraping plate 9 to scrape the inside of the water pipe, thereby cleaning the inner wall of the water pipe.

[0041] In summary, during the cleaning process of the device, on the one hand, air is injected into the airbag 7 to expand the airbag 7, so that the scraper 9 is attached to the inner wall of the water pipe. The airbag 7 makes the scraper 9 abut against the inner wall of the water pipe, facilitating the cleaning of the inner walls of water pipes with different inner diameters.

[0042] On the other hand, the high-pressure air flow that drives the rotation and movement of the airbag 7 blows towards the inner wall of the water pipe, performing high-pressure flushing on the inner wall of the water pipe, making stains such as biofilms, water scales, and sediments adsorbed on the inner wall of the water pipe become loose, reducing the difficulty of scraping by the scraper 9.

[0043] On yet another hand, the exhausted air flow passes through the middle of multiple inclined scrapers 9, further driving the rotation of the airbag 7 and the scraper 9, making further use of the kinetic energy of the air flow. When the air flow is exhausted, it flushes the side wall of the scraper 9, cleaning the stains that are cleaned off from the inner wall of the water pipe and adsorbed on the scraper 9, preventing excessive accumulation of stains on the scraper 9 from reducing the cleaning efficiency of the scraper 9 for the water pipe.

[0044] Refer to Figure 9 , it also includes a centrifugal rod 8, and the centrifugal rod 8 is fixedly connected to the inner wall of the airbag 7.

[0045] By fixing the centrifugal rod 8 on the partial inner wall of the airbag 7, the weight of a partial position of the airbag 7 is made greater than that of other parts, so that the airbag 7 generates a centrifugal force during rotation. Using this centrifugal force, the scraper 9 is more closely attached to the inner wall of the water pipe, improving the effective contact between the scraper 9 and the inner wall of the water pipe, and thus enhancing the cleaning effect on the inner wall of the water pipe.

[0046] Refer to Figure 2 、 Figure 6 and Figure 7, the driving part includes an installation box 15 fixedly connected to the base 1. A piston cylinder 19 is fixedly connected inside the installation box 15. A one-way valve for introducing air into the piston cylinder 19 is provided at the input end of the piston cylinder 19, and a one-way valve for the gas inside the piston cylinder 19 to flow out is provided at the output end of the piston cylinder 19. A piston plate 36 is slidably connected inside the piston cylinder 19, and a crank 37 is rotatably connected to the piston plate 36; It also includes a motor 16 fixedly connected inside the installation box 15. The output end of the motor 16 is fixedly connected with a driving shaft 17, and a crankshaft 18 is fixedly connected to the driving shaft 17. The crank 37 is rotatably connected to the crankshaft 18; The input end of the piston cylinder 19 is fixedly connected with an air inlet pipe 21 extending outside the installation box 15. A jet pipe 20 is fixedly connected inside the installation box 15. The jet orifice of the jet pipe 20 faces the motor 16. The output ends of multiple groups of piston cylinders 19 are all connected to the jet pipe 20; A three-way control valve 22 fixedly connected to the top of the installation box 15 and communicating with the installation box 15. The first output end of the three-way control valve 22 is fixedly connected with a third pipe 23. The output end of the third pipe 23 is fixedly connected with a rotary joint 13. An air cavity 12 is formed in the winding roller 2. The output end of the rotary joint 13 is fixedly connected to the winding roller 2 and communicates with the air cavity 12.

[0047] During the use process, start the motor 16. The motor 16 makes the driving shaft 17 rotate. The driving shaft 17 drives the crankshaft 18 to rotate. The crankshaft 18 drives the piston plate 36 to reciprocate inside the piston cylinder 19 through the crank 37, thereby sucking external air into the piston cylinder 19 and sending the air inside the piston cylinder 19 into the jet pipe 20, blowing towards the motor 16 through the jet pipe 20, absorbing the heat dissipated when the motor 16 works, dissipating heat from the motor 16, protecting the motor 16, preventing the motor 16 from overheating and being damaged during long-term use. Then, the airflow mixed with the heat dissipated by the motor 16 is discharged into the air cavity 12 through the third pipe 23 and the rotary joint 13, and enters the first pipe 3 through the air cavity 12, passes through the first pipe 3 into the airbag 7, and finally sprays towards the inner wall of the water pipe.

[0048] Furthermore, an electric heater is arranged inside the air cavity 12. The warm airflow mixed with the heat dissipated by the motor 16 is further heated by the electric heater to form a hot airflow. The hot airflow is used to clean the inner wall of the water pipe, which helps to dissolve some solids, oils or dirt on the inner wall of the water pipe, improving the cleaning effect. It should be noted that the electric heater only needs to be started when cleaning the inner wall of the pipe containing dissolved substances such as oils. Compared with using chemical agents to clean oils and the like, this device uses heating in cooperation with the scraper 9, reducing the generation of sewage polluting the environment and improving the environmental protection effect.

[0049] On the other hand, it should be noted that while the device dissipates heat from the motor 16 to protect the motor 16, it also utilizes the heat dissipated by the motor 16 to preheat the external low-temperature air, thereby saving the energy consumption required for the electric heater to heat the air and improving the energy utilization rate.

[0050] Referring to Figures 2-5 , it further includes a reciprocating screw rod 27 rotatably connected to the base 1. A mounting seat 28 is slidably connected to the base 1. The mounting seat 28 is threadedly connected to the reciprocating screw rod 27. A limiting ring 29 is fixedly connected to the top of the mounting seat 28. The first pipe 3 passes through the limiting ring 29. A second impeller box 32 is fixedly connected to the side wall of the base 1. The reciprocating screw rod 27 extends into the second impeller box 32 and is fixedly connected with a second impeller blade 33. A first impeller box 24 is fixedly connected to the side wall of the base 1. A transmission shaft 14 is fixedly connected to the side wall of the pipe winding roller 2. The transmission shaft 14 is rotatably connected to the base 1. The transmission shaft 14 extends into the first impeller box 24 and is fixedly connected with a first impeller blade 26. The input end of the first impeller box 24 is fixedly connected to the second output end of the three-way control valve 22 through a fourth pipe 25. The exhaust end of the first impeller box 24 is connected to the intake end of the second impeller box 32 through a fifth pipe 34.

[0051] After the cleaning is completed, the three-way control valve 22 is used to control the air flow inside the installation box 15 to enter the fourth pipe 25, and then enter the first impeller box 24 and spray onto the first impeller blade 26 to drive the transmission shaft 14 to rotate, thereby driving the pipe winding roller 2 to rotate. Then the air flow enters the second impeller box 32, and the second impeller box 32 drives the second impeller blade 33 to rotate. The second impeller blade 33 drives the reciprocating screw rod 27 to rotate. On the one hand, the rotation of the pipe winding roller 2 winds up the first pipe 3, thereby taking out the airbag 7 from the water pipe. On the other hand, during the process of taking out the airbag 7, the airbag 7 cooperates with the scraper 9 to push out the dirt cleaned from the inner wall of the water pipe, further improving the cleaning effect inside the water pipe. On the other hand, the reciprocating screw rod 27 drives the limiting ring 29 to reciprocate through the mounting seat 28 to guide the first pipe 3, so that the first pipe 3 is stored more neatly.

[0052] Referring to Figures 3-5 and Figure 10 , a diversion chamber 30 is formed inside the limiting ring 29. An exhaust groove 31 communicating with the diversion chamber 30 is formed on the limiting ring 29. The exhaust groove 31 faces the outer wall of the first pipe 3. The diversion chamber 30 is connected to the exhaust end of the second impeller box 32 through a corrugated expansion pipe 35.

[0053] The air flow discharged from the second impeller box 32 is discharged into the diversion chamber 30 through the corrugated expansion pipe 35 for diversion, and then discharged to the outer wall of the first pipe 3 through the diversion chamber 30 to clean the outer wall of the first pipe 3, thereby prolonging the service life of the pipe.

[0054] Refer to Figure 11 , there is a flow path for air flow left between the first impeller blade 26 and the inner wall of the first impeller box 24, and a second resistance ring 39 is fixedly connected to the transmission shaft 14, and a first resistance ring 38 is fixedly connected to the base 1. The second resistance ring 39 is rotationally connected to the first resistance ring 38, and the first resistance ring 38 is rotationally connected to the second resistance ring 39.

[0055] The frictional force between the first resistance ring 38 and the second resistance ring 39 can limit the rotational speed of the transmission shaft 14. On the one hand, it limits the speed of winding and unwinding the pipeline around the pipe roller 2, prevents the airbag 7 from moving rapidly under high-pressure air flow, and improves the safety of the movement of the airbag 7.

[0056] Refer to Figure 1 , a pull rod 40 is fixedly connected to the side wall of the base 1, and a universal locking wheel 41 is fixedly connected to the bottom of the base 1.

[0057] Through the cooperation of the pull rod 40 and the universal locking wheel 41, it is convenient to move the device.

[0058] A pipeline cleaning method includes the following steps:

[0059] Step 1: Adjust the exhaust pressure of the pressure control valve according to different water pipes;

[0060] Step 2: Insert the airbag 7 into the water pipe to be cleaned, start the motor 16 to supply air to the airbag 7, make the airbag 7 expand, until the air flow reaches the threshold value of the pressure control valve and then sprays out from the jet head 6. The gas sprayed out from the jet head 6 drives the airbag 7 to rotate and move forward, and drives the scraper 9 to clean the inner wall of the water pipe;

[0061] Step 3: Manually hold the first pipeline 3, cooperate with the high-pressure air flow sprayed out from the jet head 6, and under the limitation of the first resistance ring 38 and the second resistance ring 39, unwind the first pipeline 3 at a constant speed;

[0062] Step 4: Adjust the gas flow path through the three-way control valve 22, so that the driving part stops supplying air to the inside of the airbag 7, starts to supply air to the inside of the impeller box, winds up the first pipeline 3, and takes out the airbag 7 from the inside of the water pipe.

[0063] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A water pipe inner wall cleaning device, comprising a base (1), characterized in that, Further comprising: A pipe winding roller (2) rotatably connected to the base (1), with a first pipe (3) wound around the pipe winding roller (2); A second pipe (4) fixedly connected to the output end of the first pipe (3), an installation block (5) rotatably connected to the second pipe (4), a jet head (6) fixedly connected to the side wall of the installation block (5), the jet head (6) being inclined on the side wall of the jet head (6), and a pressure control valve being provided on the jet head (6); An airbag (7) slidably connected to the first pipe (3), one end of the airbag (7) being fixedly connected to the installation block (5), the other end of the airbag (7) being fixedly connected to a sealing swivel (11), and the sealing swivel (11) being slidably connected to the first pipe (3); An air hole (10) communicating with the inner cavity of the airbag (7) is provided on the first pipe (3); A scraping plate (9) fixedly connected to the outer wall of the airbag (7); A driving part provided on the base (1) for driving the airbag (7) to rotate and move.

2. The inner wall cleaning device for a water pipe according to claim 1, characterized in that, Further comprising a centrifugal rod (8) fixedly connected to the inner wall of the airbag (7).

3. The inner wall cleaning device of a water pipe according to claim 1, characterized in that, The driving part includes an installation box (15) fixedly connected to the base (1), a piston cylinder (19) fixedly connected inside the installation box (15), a piston plate (36) slidably connected inside the piston cylinder (19), and a crank (37) rotatably connected to the piston plate (36); Further comprising a motor (16) fixedly connected inside the installation box (15), a driving shaft (17) fixedly connected to the output end of the motor (16), a crankshaft (18) fixedly connected to the driving shaft (17), and the crank (37) being rotatably connected to the crankshaft (18); The input end of the piston cylinder (19) is fixedly connected to an air inlet pipe (21) extending outside the installation box (15), a jet pipe (20) is fixedly connected inside the installation box (15), the jet port of the jet pipe (20) faces the motor (16), and the output ends of multiple groups of the piston cylinders (19) are all connected to the jet pipe (20); A three-way control valve (22) fixedly connected to the top of the installation box (15) and communicating with the installation box (15), a first output end of the three-way control valve (22) is fixedly connected to a third pipe (23), the output end of the third pipe (23) is fixedly connected to a rotary joint (13), an air cavity (12) is provided on the pipe winding roller (2), and the output end of the rotary joint (13) is fixedly connected to the pipe winding roller (2) and communicates with the air cavity (12).

4. The inner wall cleaning device of a water pipe according to claim 3, wherein, Further comprising a reciprocating lead screw (27) rotatably connected to the base (1), an installation seat (28) slidably connected to the base (1), the installation seat (28) being threadedly connected to the reciprocating lead screw (27), a limiting ring (29) fixedly connected to the top of the installation seat (28), and the first pipe (3) passing through the limiting ring (29).

5. The inner wall cleaning device for a water pipe according to claim 4, characterized in that, A second impeller box (32) is fixedly connected to the side wall of the base (1), and the reciprocating lead screw (27) extends into the second impeller box (32) and is fixedly connected to a second impeller blade (33).

6. The inner wall cleaning device of a water pipe according to claim 5, characterized in that, A flow splitting chamber (30) is formed inside the limiting ring (29). An exhaust groove (31) communicating with the flow splitting chamber (30) is formed on the limiting ring (29). The exhaust groove (31) faces the outer wall of the first pipe (3). The flow splitting chamber (30) is connected to the exhaust end of the second impeller box (32) through a corrugated expansion pipe (35).

7. A water pipe inner wall cleaning device according to claim 5, characterized in that A first impeller box (24) is fixedly connected to the side wall of the base (1). A transmission shaft (14) is fixedly connected to the side wall of the pipe winding roller (2). The transmission shaft (14) is rotationally connected to the base (1). The transmission shaft (14) extends into the first impeller box (24) and is fixedly connected to a first impeller blade (26). The input end of the first impeller box (24) is fixedly connected to the second output end of a three-way control valve (22) through a fourth pipe (25). The exhaust end of the first impeller box (24) is connected to the intake end of the second impeller box (32) through a fifth pipe (34).

8. The inner wall cleaning device of a water pipe according to claim 7, characterized in that A flow passage for air flow is left between the first impeller blade (26) and the inner wall of the first impeller box (24). A second resistance ring (39) is fixedly connected to the transmission shaft (14). A first resistance ring (38) is fixedly connected to the base (1). The second resistance ring (39) and the first resistance ring (38) are rotationally connected to each other.

9. The inner wall cleaning device for a water pipe according to claim 6, wherein A pull rod (40) is fixedly connected to the side wall of the base (1). A universal locking wheel (41) is fixedly connected to the bottom of the base (1).

10. A pipeline cleaning method, which uses a water pipe inner wall cleaning device according to any one of claims 1-9, characterized in that, It includes the following steps: Step 1: Adjust the exhaust pressure of the pressure control valve according to different water pipes. Step 2: Insert the airbag (7) into the water pipe to be cleaned, and start the motor (16) to supply air to the airbag (7) to make the airbag (7) expand. Until the air flow reaches the threshold of the pressure control valve and then sprays out from the jet head (6). The gas sprayed out from the jet head (6) drives the airbag (7) to rotate and move forward, and drives the scraper (9) to clean the inner wall of the water pipe. Step 3: Manually hold the first pipe (3), cooperate with the high-pressure air flow sprayed out from the jet head (6), and under the limitation of the first resistance ring (38) and the second resistance ring (39), pay out the first pipe (3) at a uniform speed. Step 4: Adjust the gas flow path through the three-way control valve (22) to stop supplying gas to the inside of the airbag (7) by the driving part and start supplying gas to the inside of the impeller box to wind up the first pipe (3) and take out the airbag (7) from the inside of the water pipe.

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