Pipeline inner wall cleaning device

Abstract

The utility model relates to the technical field of water supply pipelines, in particular to a pipeline inner wall cleaning device which comprises a motor, the motor is connected with a first rotating shaft through an air slip ring, the rear end of the first rotating shaft is in threaded connection with a second rotating shaft, and an air channel A and a liquid channel are horizontally arranged in the first rotating shaft and the second rotating shaft respectively. The two ends of the second rotating shaft are sleeved with rolling brush wheels in a matched mode respectively, two air bag wheels are arranged on the second rotating shaft body on the opposite inner sides of the two rolling brush wheels at intervals, and air bag layers on the outer rings of the two air bag wheels communicate with an air channel A through air channels B. A plurality of liquid channels are horizontally arranged in the second rotating shaft body on the outer side of the air channel A. The liquid channels communicate with liquid outlet holes in the side wall of the second rotating shaft. The liquid outlet hole and the liquid channel are jointly used for conveying cleaning liquid to an inner cavity of the pipeline; according to the device, the efficient and synergistic effect of physical-chemical combined cleaning is achieved, and the precise cleaning effect is good.

Description

Technical Field

[0001] This utility model relates to the field of water supply pipeline technology, and in particular to a pipe inner wall cleaning device. Background Technology

[0002] Water supply pipes are affected by factors such as temperature, water flow, pH value, and microorganisms. Over time, scale, rust, biofilm, and sediment will accumulate on the inner walls of the pipes. If they are not cleaned for a long time, they will block the water supply pipes and even affect the safety of the water supply.

[0003] Water supply pipelines are currently mainly flushed with high-pressure water. High-pressure water can only effectively flush away sediment and other deposits, but it is difficult to remove stubborn scale or biofilm. At the same time, the pressure needs to be strictly controlled, as overpressure may damage the pipeline. Alternatively, chemical cleaning agents can be used. Generally, diluted cleaning agents are flowed into the pipeline to flush it. However, since it is not possible to accurately soak areas with stubborn scale, a large amount of acid and alkali cleaning agents are required, and the cleaning effect is generally average.

[0004] Therefore, this application provides a pipe inner wall cleaning device to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to provide a pipe inner wall cleaning device to solve the problems that existing devices cannot accurately clean stubborn scale or biofilm.

[0006] To solve the above-mentioned technical problems, this utility model provides a pipe inner wall cleaning device, including a motor, which is connected to a first rotating shaft via an air slide. A second rotating shaft is screwed to the rear end of the first rotating shaft. An air passage A and a liquid passage are horizontally arranged inside the first and second rotating shafts, respectively. Roller brushes are adapted to be installed at both ends of the second rotating shaft. Two airbag wheels are arranged at intervals on the inner side of the two roller brushes on the body of the second rotating shaft. The airbag layers of the outer rings of the two airbag wheels are connected to air passage A through air passage B. Several liquid passages are horizontally arranged inside the body of the second rotating shaft on the outer side of air passage A. The liquid passages are connected to the liquid outlet holes on the side wall of the second rotating shaft. The liquid outlet holes and liquid passages are used together to deliver the cleaning fluid into the inner cavity of the pipe.

[0007] A further improvement of the present invention is that the airbag wheel also includes a solid wheel integrally mounted on the second rotating shaft body, and an inflatable airbag layer is provided on the outside of the solid wheel.

[0008] A further improvement of this utility model is that: several air passages B are radially arranged inside the solid wheel body, and the air passages B are vertically connected to the air passage A on the second rotating shaft body.

[0009] A further improvement of the present invention is that: several liquid outlet holes are vertically opened on the side wall of the second rotating shaft between the two airbag wheels, and the bottom end of the liquid outlet holes is connected to the liquid channel.

[0010] A further improvement of the present invention is that the roller brush wheel also includes a central turntable, two arc-shaped scrapers integrally formed on the outer arc wall of the turntable, and several brush teeth are provided between the arc-shaped scrapers on the outer wall of the turntable.

[0011] A further improvement of this utility model is that the arc-shaped scraper is made of rigid material and the brush teeth are made of flexible material.

[0012] A further improvement of this utility model is that the distance between the top ends of the two arc-shaped scrapers is equal to the inner diameter of the pipe, and the length of the brush teeth is greater than the radial height of the arc-shaped scrapers.

[0013] A further improvement to the technical solution of this utility model is that the distance between the two airbag wheels is 5~20cm.

[0014] A further improvement of this utility model is that the airbag layer is made of an elastic material, and the airbag layer can be inflated to a height of 5~10mm.

[0015] A further improvement of the present invention is that the length of the first rotating shaft is 5-10m, and the air passage A and liquid passage of the first and second rotating shafts are interconnected.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] 1. The present invention provides a pipe inner wall cleaning device. By setting an air bladder on the roller brush shaft, it can achieve a highly efficient and synergistic effect of physical and chemical combined cleaning. The roller brush achieves preliminary physical cleaning through rotational friction. The air bladder isolates specific pipe sections. After the air bladder is sealed, the injected cleaning agent can soften stubborn dirt (such as scale and biofilm), so that the cleaning agent can be concentrated on the heavily polluted area, avoiding waste of the agent and enhancing the local cleaning intensity. The efficiency is significantly improved when the roller brush is used for secondary cleaning.

[0018] 2. The present invention provides a pipe inner wall cleaning device, wherein the inflation pressure of the airbag can be dynamically adjusted according to the pipe diameter (e.g., within a range of 0.2-0.8 MPa), and can completely adhere to the inner wall of the pipe to form a closed cavity, effectively reducing the diffusion of cleaning agent and reducing the amount of cleaning agent used by 30%-50% (compared to the traditional soaking method), while shortening the reaction time.

[0019] 3. The present invention provides a pipe inner wall cleaning device. The roller brush improves the cleaning effect by setting a rigid scraper and flexible brush teeth. The scraper, made of high-hardness material, can efficiently remove stubborn scale, calcified deposits or coke. The flexible brush teeth conform to the pipe wall through elastic deformation, sweeping away debris on the inner wall of the pipe and achieving a good cleaning effect. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A schematic diagram of a pipe inner wall cleaning device;

[0022] Figure 2 This is an exploded view of the cleaning device in Figure 1;

[0023] Figure 3 for Figure 1 A cross-sectional view of the brush wheel in the image;

[0024] Figure 4 This is a partial enlarged sectional view of the connection between the first and second rotating shafts.

[0025] Figure 5 This is a cross-sectional view of the airbag wheel;

[0026] Figure 6 This is a sectional view of the second rotating shaft;

[0027] Figure 7 This is a schematic diagram of the roller brush wheel.

[0028] Reference numerals in the attached diagram: 1. Motor; 2. Air slip ring; 3. First rotating shaft; 4. Second rotating shaft; 41. Air passage A; 42. Liquid passage; 43. Liquid outlet; 5. Roller brush wheel; 51. Turntable; 52. Arc-shaped scraper; 53. Brush teeth; 6. Airbag wheel; 61. Solid wheel; 62. Airbag layer; 63. Air passage B; 7. Pipeline. Detailed Implementation

[0029] 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.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The present invention will be further explained below with reference to specific embodiments.

[0033] like Figures 1-7As shown, this embodiment provides a pipe inner wall cleaning device, including a motor 1. The motor 1 is connected to a first rotating shaft 3 via a slip ring 2. A second rotating shaft 4 is screwed to the rear end of the first rotating shaft 3. An air passage A41 and a liquid passage 42 are horizontally arranged inside the first rotating shaft 3 and the second rotating shaft 4, respectively. Roller brush wheels 5 are adapted to be installed at both ends of the second rotating shaft 4. Two airbag wheels 6 are arranged at intervals on the body of the second rotating shaft 4 on the relatively inner sides of the two roller brush wheels 5. The airbag layers 62 of the outer rings of the two airbag wheels 6 are connected to the air passages B63, respectively. A ventilation channel A41 has several liquid channels 42 horizontally arranged on its outer side within the body of the second rotating shaft 4. The liquid channels 42 connect to the liquid outlet 43 on the side wall of the second rotating shaft 4. The liquid outlet 43 and the liquid channels 42 together are used to deliver the cleaning fluid into the inner cavity of the pipeline 7. Specifically, the front end of the first rotating shaft 3 is fitted with the end of a slip ring 2. The slip ring 2 is a commercially available product, and its structure and working principle will not be described in detail here. The rear end of the first rotating shaft 3 is screwed to the second rotating shaft 4. The ventilation channel A41 and the liquid channels 42 within the first rotating shaft 3... 2. Align the air passage A41 and liquid passage 42 that pass through the second rotating shaft 4 respectively. The second rotating shaft 4 drives the two roller brush wheels 5 to rotate under the action of motor 1. The roller brush wheels 5 continuously scrape and clean the dirt on the inner wall of the pipe 7. The cleaning effect of the top roller brush wheel 5 is judged by the camera probe (not shown in the figure) inside the body of the front airbag wheel 6. If there is dirt that is difficult to clean and the cleaning effect is not good, the roller brush wheel 5 stops moving forward and rotating. Gas is injected through the air inlet of the air slip ring 2. The gas passes through air passage A41 and liquid passage 42. 1. Air passage B63 enters the airbag layer 62 of the outer ring of airbag wheel 6. The airbag layer 62 expands outward evenly until it completely adheres to the inner wall of pipe 7. The two airbag wheels 6 form a closed cavity in pipe 7. Then, cleaning fluid is injected through the liquid inlet of air slip ring 2. The cleaning fluid flows through liquid passage 42 and liquid outlet 43 into the closed cavity of pipe 7 to fully soak the inner wall of this section of pipe 7, fully reacting and dissolving stubborn scale or biofilm. Then, the roller brush wheel 5 is used to roll and clean, improving the cleaning effect and efficiency of the inner wall of pipe 7.

[0034] like Figure 1 , Figure 3 , Figure 5As shown, in this embodiment, the airbag wheel 6 also includes a solid wheel 61 integrally mounted on the body of the second rotating shaft 4. An inflatable airbag layer 62 is provided on the outer side of the solid wheel 61. Several air passages B63 are radially arranged inside the body of the solid wheel 61, and the air passages B63 are vertically connected to the air passages A41 on the body of the second rotating shaft 4. The distance between the two airbag wheels 6 is 5~20cm. The airbag layer 62 is made of elastic material, and the airbag layer 62 can be expanded to a height of 5~10mm. Specifically, the airbag layer 62 is made of corrosion-resistant fluororubber material. The distance between the two airbag wheels 6 is 10cm. Three air passages B63 are radially arranged inside the body of the solid wheel 61. When inflated, the elastic airbag layer 62 completely abuts against the inner wall of the pipe 7, achieving the effect of isolation and sealing. The inner wall of this section of the pipe 7 can be soaked with cleaning agent in a targeted manner, so that the cleaning agent is concentrated on the heavily soiled area, avoiding waste of cleaning agent and enhancing the local cleaning intensity. The efficiency is significantly improved when cleaning with a secondary roller brush.

[0035] like Figure 2 , Figure 5 , Figure 6 As shown, in this embodiment, several liquid outlet holes 43 are vertically opened on the side wall of the second rotating shaft 4 between the two airbag wheels 6, and the bottom end of the liquid outlet holes 43 is connected to the liquid channel 42; specifically, an air channel A41 parallel to the axial direction is opened at the center of the second rotating shaft 4, and three liquid channels 42 parallel to the axial direction are evenly arranged on the outer periphery of the air channel A41. The liquid channels 42 are connected to the liquid outlet holes 43 arranged perpendicular to the axial direction of the second rotating shaft 4, which facilitates the rapid injection of cleaning agent.

[0036] like Figure 2 , Figure 4 , Figure 7 As shown, in this embodiment, the roller brush wheel 5 also includes a central turntable 51, two arc-shaped scrapers 52 integrally formed on the outer arc wall of the turntable 51, and a plurality of brush teeth 53 arranged between the arc-shaped scrapers 52 on the outer wall of the turntable 51; the arc-shaped scrapers 52 are made of rigid material, and the brush teeth 53 are made of flexible material; the distance between the top ends of the two arc-shaped scrapers 52 is equal to the inner diameter of the pipe 7, and the length of the brush teeth 53 is greater than the radial height of the arc-shaped scrapers 52; specifically, the roller brush wheel 5 is keyed to both ends of the second rotating shaft 4, which facilitates the disassembly and replacement of the worn roller brush wheel 5. The two arc-shaped scrapers 52 are symmetrical about the center of the turntable 51. The arc-shaped scrapers 52 are made of a certain strength corrosion-resistant plastic material. The outer ends of the two arc-shaped scrapers 52 abut against the inner wall of the pipe 7. The roller brush wheel 5 is driven to rotate by the second rotating shaft 4, so that the arc-shaped scrapers 52 can efficiently remove scale, calcified deposits or coking, etc. The flexible brush teeth 53 conform to the pipe wall through elastic deformation, sweeping away debris on the inner wall of the pipe 7, achieving a good cleaning effect.

[0037] like Figures 1-4As shown, in this embodiment, the length of the first rotating shaft 3 is 5~10m, and the air passage A41 and liquid passage 42 of the first rotating shaft 3 and the second rotating shaft 4 are interconnected. Specifically, the length of the first rotating shaft 3 can be customized according to actual needs, and several first rotating shafts 3 can be connected in series to achieve cleaning of the inner wall of a longer pipe 7.

[0038] This utility model provides a working principle for a pipe inner wall cleaning device: During use, the operator inserts the front-end roller brush 5 into the pipe 7, then starts the motor 1. The motor, through the air slip ring 2 and the first rotating shaft 3, drives the second rotating shaft 4 to rotate, thereby causing the two roller brushes 5 to rotate and clean the inner wall of the pipe 7. Simultaneously, the motor 1 support is manually pushed forward slowly. During the cleaning process, the condition of the dirt on the inner wall of the pipe 7 can be observed through a camera probe (not shown in the figure) inside the front-end airbag wheel 6. If there is stubborn dirt and the cleaning effect is poor, the roller brushes 5 stop moving forward and rotating. Gas is injected through the air inlet of the air slip ring 2. The gas enters the air bladder layer 62 of the outer ring of the air bladder wheel 6 through air passage A41 and air passage B63. The air bladder layer 62 expands outward evenly until it completely adheres to the inner wall of the pipe 7. The two air bladder wheels 6 form a closed cavity in the pipe 7. Then, cleaning fluid is injected through the liquid inlet of the air slip ring 2. The cleaning fluid flows into the closed cavity of the pipe 7 through liquid passage 42 and liquid outlet 43 to fully soak the inner wall of this section of the pipe 7, fully reacting and dissolving stubborn scale or biofilm. Then, the roller brush wheel 5 is used to roll and clean, improving the cleaning effect and efficiency of the inner wall of the pipe 7.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pipeline inner wall cleaning device, characterized by, The device includes a motor (1), which is connected to a first rotating shaft (3) via a slip ring (2). The rear end of the first rotating shaft (3) is screwed to a second rotating shaft (4). Air passages A (41) and liquid passages (42) are horizontally arranged inside the first rotating shaft (3) and the second rotating shaft (4), respectively. Roller brushes (5) are fitted to both ends of the second rotating shaft (4). Two airbag wheels (6) are spaced apart on the inner side of the two roller brushes (5) on the body of the second rotating shaft (4). The airbag layer (62) on the outer ring of the two airbag wheels (6) is connected to air passages A (41) via air passages B (63). Several liquid passages (42) are horizontally arranged inside the body of the second rotating shaft (4) on the outer side of air passages A (41). The liquid passages (42) are connected to the liquid outlet (43) on the side wall of the second rotating shaft (4). The liquid outlet (43) and the liquid passages (42) are used together to deliver the cleaning liquid to the inner cavity of the pipeline (7).

2. The in-pipe wall cleaning device of claim 1, wherein, The airbag wheel (6) also includes a solid wheel (61) integrally mounted on the body of the second rotating shaft (4), and an inflatable airbag layer (62) is provided on the outside of the solid wheel (61).

3. A pipeline inner wall cleaning device according to claim 2, wherein, Several air passages B (63) are radially arranged inside the solid wheel (61) body, and the air passages B (63) are vertically connected to the air passage A (41) on the body of the second rotating shaft (4).

4. The in-duct wall cleaning device of claim 2, wherein, Several liquid outlet holes (43) are vertically opened on the side wall of the second rotating shaft (4) between the two airbag wheels (6), and the bottom end of the liquid outlet holes (43) is connected to the liquid channel (42).

5. The in-duct wall cleaning device of claim 1, wherein, The roller brush wheel (5) also includes a central turntable (51), two arc-shaped scrapers (52) integrally formed on the outer arc wall of the turntable (51), and several brush teeth (53) are set between the arc-shaped scrapers (52) on the outer wall of the turntable (51).

6. A pipeline inner wall cleaning device according to claim 5, wherein, The arc-shaped scraper (52) is made of rigid material, and the brush teeth (53) are made of flexible material.

7. A pipeline inner wall cleaning device according to claim 6, wherein, The distance between the top ends of the two arc-shaped scrapers (52) is equal to the inner diameter of the pipe (7), and the length of the brush teeth (53) is greater than the radial height of the arc-shaped scrapers (52).

8. The in-duct wall cleaning device of claim 2, wherein, The distance between the two airbag wheels (6) is 5~20cm.

9. The in-duct wall cleaning device of claim 2, wherein, The airbag layer (62) is made of elastic material and can be inflated to a height of 5~10mm.

10. The in-duct wall cleaning device of claim 1, wherein, The length of the first rotating shaft (3) is 5~10m, and the air passage A (41) and liquid passage (42) of the first rotating shaft (3) and the second rotating shaft (4) are interconnected.

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