A pipeline maintenance device

Abstract

The application discloses a pipeline maintenance device, which comprises a cylinder placed in a pipeline, a rotating shaft rotatingly arranged in the cylinder and a connecting port arranged on an end wall of the cylinder, the connecting port is connected with a suction dredger in the outside world, and the pipeline maintenance device further comprises a walking mechanism arranged on an outer wall of the cylinder and used for driving the cylinder to move in the pipeline, a cleaning mechanism arranged on the rotating shaft and used for removing mud blocks on an inner wall of the pipeline, a crushing mechanism arranged on the rotating shaft and used for crushing the removed mud blocks, and an opening and closing mechanism arranged in the cylinder and used for allowing the suction dredger to suck in small mud blocks after crushing in the cylinder in an open state.

Description

Technical Field

[0001] This invention relates to the field of pipelines, and more specifically to a pipeline maintenance device. Background Technology

[0002] Municipal drainage and sewage pipes are a crucial part of urban construction. Their unobstructed flow directly impacts people's daily lives. Whether it's domestic wastewater or industrial wastewater, the inner walls of drainage and sewage pipes accumulate dirt and grime after a period of use. If not cleaned promptly or thoroughly, this can cause blockages, preventing the timely discharge of sewage and leading to foul odors. In severe cases, it can even cause urban flooding during periods of heavy rainfall. Therefore, regular cleaning and maintenance of the pipe's inner walls are essential.

[0003] In existing technologies, the size of the maintenance device is fixed, which cannot clean and maintain pipes of different diameters, making it difficult to carry out maintenance work smoothly. In addition, when collecting mud clumps cleaned from the inner wall of the pipe using a mud suction machine, if the mud clumps are too large, they can easily cause blockage of the suction pipe, which is not conducive to the subsequent collection of mud clumps. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a pipeline maintenance device.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A pipeline maintenance device includes a cylinder placed inside a pipeline, a rotating shaft rotatably disposed inside the cylinder, and a connection port disposed on the end wall of the cylinder, the connection port being connected to a sludge suction machine in the outside, and further includes:

[0007] A traveling mechanism is provided on the outer wall of the cylinder to drive the cylinder to move inside the pipe;

[0008] A cleaning mechanism, located on the rotating shaft, is used to remove mud from the inner wall of the pipe;

[0009] A crushing mechanism, mounted on the rotating shaft, is used to crush the cleaned mud blocks;

[0010] An opening and closing mechanism is located inside the cylinder, which allows the sludge suction machine to suck in small pieces of pulverized mud inside the cylinder when the cylinder is open.

[0011] Preferably, the walking mechanism includes:

[0012] Four sets of walking wheels, two in each set, with the walking wheels in contact with the inner wall of the pipe;

[0013] The first lead screw is connected to the walking wheel;

[0014] The sleeve is threadedly connected to the first lead screw;

[0015] A limiting rod is connected between each set of two first lead screws to restrict the rotation of the first lead screws when the sleeve rotates;

[0016] The first drive assembly is used to drive the sleeve to rotate, thereby causing the first lead screw to move.

[0017] Preferably, the first driving component includes:

[0018] A drive wheel is located on the outer wall of the cylinder, and a first motor is connected to the bottom end of the drive wheel to drive the drive wheel to rotate;

[0019] A transmission belt is slidably disposed on the drive pulley and on two of the sleeves, so as to drive the two sleeves to rotate when the drive pulley rotates;

[0020] The first gear is sleeved on the sleeve and rotates synchronously with the sleeve;

[0021] Two second gears are rotatably mounted on the outer wall of the cylinder and mesh with the first gears to drive all the first gears to rotate synchronously.

[0022] Preferably, the cleaning mechanism includes:

[0023] Two sets of drill bits, each set containing multiple drill bits, are used to drill through the mud on the inner wall of the pipe.

[0024] Two scrapers are used to scrape off mud from the inner wall of the pipe, and a connecting plate for mounting the drill bit is connected to the scrapers;

[0025] The second drive assembly is used to drive the drill bit and the scraper to move.

[0026] Preferably, the second driving component includes:

[0027] A fixed seat is fitted onto the rotating shaft;

[0028] Connector, which is connected to the scraper;

[0029] A driving component, located within the fixed base, is used to drive the connecting component to move linearly, thereby causing the scraper and the drill bit to move linearly.

[0030] Preferably, the driving element includes:

[0031] Two second lead screws are rotatably connected to the fixed base;

[0032] Two third gears are fitted into the middle of the second lead screw;

[0033] The fourth gear meshes with the two third gears, and a second motor is provided at the bottom of the fourth gear to drive the fourth gear to rotate.

[0034] Preferably, the connector includes:

[0035] Two sets of inclined plates, each set consisting of two plates, are connected to both sides of the scraper respectively;

[0036] The movable plate is connected at one end to the inclined plate and at the other end to the second lead screw.

[0037] The fixed base is provided with two symmetrical limiting grooves to limit the movement of the scraper.

[0038] Preferably, the crushing mechanism includes a plurality of crushing blades that rotate and are evenly distributed on the rotating shaft, wherein one of the crushing blades has a protrusion on the side away from the scraper.

[0039] Preferably, the opening and closing mechanism includes:

[0040] A rotating plate is rotatably mounted inside the cylinder.

[0041] A fixed shaft, the upper end of which is connected to the inner wall of the cylinder;

[0042] The swing bar is hinged to the rotating plate and rotatably connected to the fixed shaft. When the protrusion rotates with the crushing blade, it contacts the swing bar and pushes the swing bar to rotate around the fixed shaft as the central axis, thereby driving the rotating plate to rotate in the cylinder to the open state.

[0043] A reset component is used to restore the turntable to the closed state.

[0044] Preferably, the reset element includes:

[0045] A connecting post is attached to the upper end of the swing bar, and the connecting post is sleeved on the bottom end of the fixed shaft and rotatably connected to the fixed shaft.

[0046] A torsion spring is sleeved on the connecting post, with one end connected to the connecting post and the other end connected to the fixed shaft.

[0047] Compared with the prior art, the beneficial effects of the present invention are:

[0048] 1. The present invention, by setting up a walking mechanism, enables all sleeves to rotate synchronously. At this time, the first lead screw moves linearly, changing the distance between the walking wheel and the outer wall of the sleeve to adapt to cleaning and maintaining pipes of different diameters.

[0049] 2. This invention, by setting up a cleaning mechanism, changes the distance between the scraper and the drill bit and the outer wall of the cylinder to adapt to cleaning and maintaining pipes of different diameters; the design of the inclined plate, the moving plate and the limiting groove makes the displacement adjustment of the scraper and the drill bit more stable while rotating;

[0050] 3. This invention incorporates a crushing mechanism, where crushing blades crush the cleaned mud lumps, facilitating the subsequent suction of small mud lumps by a mud suction machine.

[0051] 4. By setting up an opening and closing mechanism, the rotating plate is in the open state. Since the increase in the gap between the rotating plate and the inner wall of the cylinder is limited, the sludge suction machine can suck up and collect the crushed small mud pieces, avoiding large mud pieces from entering the suction pipe and causing blockage. The rotating design of the rotating plate also makes it less likely for mud pieces to cause blockage when passing through the gap between the rotating plate and the inner wall of the cylinder. Attached Figure Description

[0052] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0053] Figure 1 This is one of the overall structural schematic diagrams of the present invention;

[0054] Figure 2 This is a front view of the present invention;

[0055] Figure 3 This is a schematic diagram of the structure of the cylinder, the walking mechanism, and the opening and closing mechanism in this invention;

[0056] Figure 4 This is a schematic diagram of the cleaning mechanism and the crushing mechanism in this invention;

[0057] Figure 5 This is a partial structural diagram of the cleaning mechanism in this invention;

[0058] Figure 6 This is a schematic diagram of the opening and closing mechanism in this invention;

[0059] Figure 7 This is a cross-sectional view of the cleaning mechanism in this invention;

[0060] Figure 8 This is a diagram showing the state of the oscillating bar being pushed by the protrusion in this invention.

[0061] Figure 9 The second schematic diagram shows the overall structure of the present invention.

[0062] In the picture:

[0063] 1. Cylinder body;

[0064] 2. Traveling mechanism; 201. Traveling wheel; 202. First lead screw; 203. Sleeve; 204. Limiting rod; 205. Transmission belt; 206. First gear; 207. Second gear; 208. Drive wheel;

[0065] 3. Cleaning mechanism; 301. Fixed base; 302. Scraper; 303. Connecting plate; 304. Drill bit; 305. Inclined plate; 306. Moving plate; 307. Second lead screw; 308. Third gear; 309. Limiting groove; 310. Fourth gear;

[0066] 4. Crushing mechanism; 401. Crushing blade; 402. Protrusion;

[0067] 5. Opening and closing mechanism; 501. Rotating plate; 502. Swing bar; 503. Connecting column; 504. Fixed shaft; 505. Torsion spring;

[0068] 6. Mounting column; 7. Rotating shaft; 8. Protective box; 9. Connection port. Detailed Implementation

[0069] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0070] Please see Figure 1-9 A pipeline maintenance device includes a cylinder 1 placed inside a pipeline, a rotating shaft 7 rotatably disposed inside the cylinder 1, and a connection port 9 disposed on the end wall of the cylinder 1, the connection port 9 being connected to a sludge suction machine in the outside, and further includes:

[0071] The traveling mechanism 2 is located on the outer wall of the cylinder 1 and drives the cylinder 1 to move inside the pipe;

[0072] The cleaning mechanism 3, located on the rotating shaft 7, is used to remove mud from the inner wall of the pipe.

[0073] The crushing mechanism 4 is mounted on the rotating shaft 7 and is used to crush the cleaned mud blocks.

[0074] The opening and closing mechanism 5 is located inside the cylinder 1. When in the open state, it allows the sludge suction machine to suck in the small mud blocks that have been crushed inside the cylinder 1.

[0075] With this design, a mounting column 6 is fixedly connected to the inner wall of the cylinder 1, and a rotating shaft 7 passes through the mounting column 6 and is rotatably connected to the mounting column 6 and the rotating shaft 7. A protective box 8 is fixedly connected to the mounting column 6, and a drive motor that drives the rotating shaft 7 to rotate is placed inside the protective box 8. The output shaft of the drive motor is fixedly connected to the rotating shaft 7 through a coupling. The sludge suction machine is equipped with a sludge suction pipe, which is connected to the connection port 9. The sludge suction machine sucks in mud blocks from inside the cylinder 1.

[0076] With this design, the cylinder 1 is placed parallel inside the pipe, and the traveling mechanism 2 drives the cylinder 1 to move inside the pipe. Driven by the rotating shaft 7, the cleaning mechanism 3 removes the mud from the inner wall of the pipe, and the crushing mechanism 4 crushes the cleaned mud. When the opening and closing mechanism 5 is in the open state, the mud suction machine sucks in and collects the mud inside the cylinder 1 through the connection port 9. In addition, the opening size of the opening and closing mechanism 5 is limited to ensure that only small mud pieces that have been crushed are sucked in, avoiding the suction pipe on the mud suction machine from sucking in too large mud pieces and causing blockage.

[0077] In one embodiment, the walking mechanism 2 includes:

[0078] Four sets of traveling wheels 201, with two wheels in each set, and the traveling wheels 201 are in contact with the inner wall of the pipe;

[0079] The first lead screw 202 is connected to the traveling wheel 201;

[0080] Sleeve 203 is threadedly connected to the first lead screw 202;

[0081] The limiting rod 204 is connected between the two first lead screws 202 in each group, and restricts the rotation of the first lead screw 202 when the sleeve 203 rotates;

[0082] The first drive assembly is used to drive the sleeve 203 to rotate, thereby driving the first lead screw 202 to move.

[0083] With this design, the first lead screw 202 is connected to the traveling wheel 201 by bolts, and the limiting rod 204 is fixedly connected between the two first lead screws 202.

[0084] In one embodiment, the first driving component includes:

[0085] The drive wheel 208 is located on the outer wall of the cylinder 1, and the bottom end of the drive wheel 208 is connected to a first motor to drive the drive wheel 208 to rotate.

[0086] The transmission belt 205 is slidably disposed on the drive wheel 208 and on two of the sleeves 203, so as to drive the two sleeves 203 to rotate when the drive wheel 208 rotates;

[0087] The first gear 206 is sleeved on the sleeve 203 and rotates synchronously with the sleeve 203;

[0088] Two second gears 207 are rotatably mounted on the outer wall of the cylinder 1 and mesh with the first gear 206 to drive all the first gears 206 to rotate synchronously.

[0089] With this design, the first motor is fixedly installed on the outer wall of the cylinder 1, and the output shaft of the first motor is fixedly connected to the drive wheel 208 through a coupling.

[0090] With this design, the first motor drives the drive wheel 208 to rotate, which in turn drives the transmission belt 205 to rotate. The two sleeves 203 rotate synchronously, and the first gear 206 and the second gear 207 also rotate, so that all the sleeves 203 rotate synchronously. At this time, the first lead screw 202 moves linearly, changing the distance between the traveling wheel 201 and the outer wall of the cylinder 1 to adapt to cleaning and maintaining pipes of different diameters.

[0091] In one embodiment, the cleaning mechanism 3 includes:

[0092] Two sets of 304 drill bits, each set containing multiple 304 drill bits, are used to drill through the mud on the inner wall of the pipe.

[0093] Two scrapers 302 are used to scrape off mud from the inner wall of the pipe. A connecting plate 303 for mounting a drill bit 304 is connected to the scraper 302.

[0094] The second drive assembly is used to drive the drill bit 304 and scraper 302 to move.

[0095] With this design, one end of the connecting plate 303 is fixedly connected to the drill bit 304, and the other end is fixedly connected to the scraper 302.

[0096] In one embodiment, the second driving component includes:

[0097] The fixed seat 301 is sleeved on the rotating shaft 7;

[0098] Connector, which connects to scraper 302;

[0099] The driving component, located within the fixed base 301, is used to drive the connecting component to move linearly, thereby causing the scraper 302 and the drill bit 304 to move linearly.

[0100] In one embodiment, the driving element includes:

[0101] Two second lead screws 307 are rotatably connected to the fixed base 301;

[0102] Two third gears 308 are sleeved in the middle of the second lead screw 307;

[0103] The fourth gear 310 meshes with two third gears 308, and a second motor is provided at the bottom of the fourth gear 310 to drive the fourth gear 310 to rotate.

[0104] With this design, the third gear 308 is fixedly connected to the second lead screw 307, and the fourth gear 310 is rotatably connected to the fixed base 301; the second motor is fixedly installed on the fixed base 301, and the output shaft of the second motor is fixedly connected to the fourth gear 310 through a coupling.

[0105] In one embodiment, the connector includes:

[0106] Two sets of inclined plates 305, each set consisting of two plates, are connected to both sides of the scraper 302 respectively;

[0107] The movable plate 306 is connected at one end to the inclined plate 305 and at the other end to the second lead screw 307.

[0108] The fixed base 301 is provided with two symmetrical limiting grooves 309 to limit the movement of the scraper 302.

[0109] With this design, the second motor drives the fourth gear 310 to rotate, which in turn drives the two third gears 308 to rotate, thereby driving the two second lead screws 307 to rotate. The moving plate 306 moves linearly, and the inclined plate 305 also moves linearly, causing the scraper 302 to move linearly, and also causing the drill bit 304 to move linearly. This changes the distance between the scraper 302 and the drill bit 304 and the outer wall of the cylinder 1 to adapt to cleaning and maintaining pipes of different diameters. The design of the inclined plate 305, the moving plate 306, and the limiting groove 309 makes it more stable to adjust the displacement of the scraper 302 and the drill bit 304 while they are rotating.

[0110] In one embodiment, the crushing mechanism 4 includes a plurality of crushing blades 401 that rotate and are evenly distributed on the rotating shaft 7, wherein one of the crushing blades 401 has a protrusion 402 on the side away from the scraper 302.

[0111] With this design, the crushing blade 401 is fixedly connected to the rotating shaft 7, and the protrusion 402 is fixedly connected to one of the crushing blades 401. When the rotating shaft 7 drives the crushing blade 401 to rotate, the protrusion 402 also rotates. The crushing blade 401 crushes the cleaned mud lumps, making it easier for the subsequent mud suction machine to suck up and collect the small mud lumps.

[0112] In one embodiment, the opening / closing mechanism 5 includes:

[0113] Rotating plate 501 is rotatably mounted inside cylinder 1;

[0114] Fixed shaft 504, the upper end of which is connected to the inner wall of cylinder 1;

[0115] The swing bar 502 is hinged to the rotating plate 501 and rotatably connected to the fixed shaft 504. When the protrusion 402 rotates with the crushing blade 401, it contacts the swing bar 502 and pushes the swing bar 502 to rotate around the fixed shaft 504 as the central axis, thereby driving the rotating plate 501 to rotate inside the cylinder 1 to the open state.

[0116] The reset component is used to restore the turntable 501 to the closed state.

[0117] With this design, the upper end of the fixed shaft 504 is fixedly connected to the inner wall of the cylinder 1; the diameter of the rotating plate 501 is slightly smaller than the inner diameter of the cylinder 1, which facilitates the rotation of the rotating plate 501; in addition, the hinge point between the rotating plate 501 and the swing bar 502 is avoided to be located on the vertical central axis of the rotating plate 501, which facilitates the subsequent pushing of the rotating plate 501 by the swing bar 502.

[0118] In one embodiment, the reset element includes:

[0119] The connecting post 503 is connected to the upper end of the swing bar 502. The connecting post 503 is sleeved on the bottom end of the fixed shaft 504 and is rotatably connected to the fixed shaft 504.

[0120] A torsion spring 505 is sleeved on a connecting post 503, with one end connected to the connecting post 503 and the other end connected to a fixed shaft 504.

[0121] With this design, the connecting post 503 is fixedly connected to the upper end of the swing bar 502; one end of the torsion spring 505 is fixedly connected to the connecting post 503, and the other end is fixedly connected to the fixed shaft 504.

[0122] With this design, when the protrusion 402 rotates, it pushes the swing bar 502 to rotate around the fixed shaft 504 as the central axis. The swing bar 502 drives the rotating plate 501 to rotate slightly inside the cylinder 1, increasing the gap between the rotating plate 501 and the inner wall of the cylinder 1. At this time, the rotating plate 501 is in the open state. Since the increase in the gap between the rotating plate 501 and the inner wall of the cylinder 1 is limited, the sludge suction machine can suck up and collect the crushed small mud pieces, preventing large mud pieces from entering the suction pipe and causing blockage. The torsion spring 505 returns the rotating plate 501 to the closed state. The rotation design of the rotating plate 501 also makes it less likely for mud pieces to cause blockage when passing through the gap between the rotating plate 501 and the inner wall of the cylinder 1.

[0123] Working principle: During use, the cylinder 1 is placed parallel inside the pipe. The traveling mechanism 2 drives the cylinder 1 to move inside the pipe. Driven by the rotating shaft 7, the cleaning mechanism 3 removes the mud from the inner wall of the pipe, and the crushing mechanism 4 crushes the cleaned mud. When the opening and closing mechanism 5 is in the open state, the mud suction machine sucks in and collects the mud inside the cylinder 1 through the connection port 9. In addition, the opening size of the opening and closing mechanism 5 is limited to ensure that only small mud pieces that have been crushed are sucked in, avoiding the suction pipe on the mud suction machine from sucking in too large mud pieces and causing blockage.

[0124] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0125] Furthermore, if the embodiments of this invention involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where A and B are simultaneously satisfied. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention. It is obvious to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that this invention can be implemented in other specific forms without departing from the spirit or basic characteristics of this invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within the invention.

Claims

1. A pipeline maintenance device, characterized in that, The system includes a cylinder (1) placed inside a pipe, a rotating shaft (7) rotatably disposed inside the cylinder (1), and a connection port (9) disposed on the end wall of the cylinder (1), the connection port (9) being connected to a sludge suction machine in the outside, and further includes: The walking mechanism (2) is located on the outer wall of the cylinder (1) and drives the cylinder (1) to move inside the pipe; The cleaning mechanism (3) is located on the rotating shaft (7) and is used to remove mud from the inner wall of the pipe; A crushing mechanism (4) is provided on the rotating shaft (7) and is used to crush the cleaned mud blocks; An opening and closing mechanism (5) is provided inside the cylinder (1). When in the open state, the mud suction machine sucks in the small mud blocks that have been crushed inside the cylinder (1). The walking mechanism (2) includes: Four sets of walking wheels (201), two in each set, the walking wheels (201) are in contact with the inner wall of the pipe; The first lead screw (202) is connected to the walking wheel (201); The sleeve (203) is threadedly connected to the first lead screw (202); A limiting rod (204) is connected between each set of two first lead screws (202) to restrict the rotation of the first lead screws (202) when the sleeve (203) rotates; The first drive assembly is used to drive the sleeve (203) to rotate, thereby driving the first lead screw (202) to move; The cleaning mechanism (3) includes: Two sets of drill bits (304), each set of drill bits (304) is provided in multiple quantities, for drilling mud blocks on the inner wall of the pipe; Two scrapers (302) are used to scrape off mud from the inner wall of the pipe, and a connecting plate (303) for mounting the drill bit (304) is connected to the scrapers (302). The second drive assembly is used to drive the drill bit (304) and the scraper (302) to move; The crushing mechanism (4) includes a plurality of crushing blades (401) that rotate and are evenly distributed on the rotating shaft (7), wherein one of the crushing blades (401) has a protrusion (402) on the side away from the scraper (302). The opening and closing mechanism (5) includes: A rotating plate (501) is rotatably disposed inside the cylinder (1); A fixed shaft (504) is connected at its upper end to the inner wall of the cylinder (1); The swing bar (502) is hinged to the rotating plate (501) and rotatably connected to the fixed shaft (504). When the protrusion (402) rotates with the crushing blade (401), it contacts the swing bar (502) and pushes the swing bar (502) to rotate around the fixed shaft (504) as the central axis, thereby driving the rotating plate (501) to rotate to the open state inside the cylinder (1). A reset component is used to restore the turntable (501) to the closed state; The reset component includes: A connecting post (503) is connected to the upper end of the swing bar (502). The connecting post (503) is sleeved on the bottom end of the fixed shaft (504) and is rotatably connected to the fixed shaft (504). A torsion spring (505) is sleeved on the connecting post (503), with one end connected to the connecting post (503) and the other end connected to the fixed shaft (504).

2. The pipeline maintenance device according to claim 1, characterized in that, The first driving component includes: A drive wheel (208) is provided on the outer wall of the cylinder (1), and a first motor is connected to the bottom end of the drive wheel (208) to drive the drive wheel (208) to rotate; A transmission belt (205) is slidably disposed on the drive wheel (208) and slidably disposed on two of the sleeves (203) so as to drive the two sleeves (203) to rotate when the drive wheel (208) rotates; The first gear (206) is sleeved on the sleeve (203) and rotates synchronously with the sleeve (203); Two second gears (207) are rotatably mounted on the outer wall of the cylinder (1) and mesh with the first gear (206) to drive all the first gears (206) to rotate synchronously.

3. The pipeline maintenance device according to claim 1, characterized in that, The second driving component includes: A fixed seat (301) is sleeved on the rotating shaft (7); A connector is attached to the scraper (302); A driving component, located within the fixed base (301), is used to drive the connecting component to move linearly, thereby causing the scraper (302) and the drill bit (304) to move linearly.

4. The pipeline maintenance device according to claim 3, characterized in that, The driving component includes: Two second lead screws (307) are rotatably connected to the fixed base (301); Two third gears (308) are sleeved in the middle of the second lead screw (307); The fourth gear (310) meshes with the two third gears (308), and the bottom end of the fourth gear (310) is provided with a second motor to drive the fourth gear (310) to rotate.

5. The pipeline maintenance device according to claim 4, characterized in that, The connector includes: Two sets of inclined plates (305), each set consisting of two plates, are respectively connected to both sides of the scraper (302); The movable plate (306) is connected at one end to the inclined plate (305) and at the other end to the second lead screw (307); The fixed base (301) is provided with two symmetrical limiting grooves (309) to limit the movement of the scraper (302).

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