Periodic dredging device for sewage drainage

Abstract

The invention relates to the technical field of sewage pipeline treatment equipment, in particular to a regular dredging device for sewage drainage, which comprises a moving vehicle, a liftable mounting box is mounted on the moving vehicle, a sizing mechanism is arranged on the mounting box, the sizing mechanism comprises a driving assembly and four groups of deflection assemblies, and the driving assembly is connected with the deflection assemblies. Each set of deflection assembly comprises a telescopic part, when the driving assembly acts, the four sets of deflection assemblies deflect relative to the mounting box, and the telescopic parts can be driven to stretch out and draw back, so that the telescopic parts can be attached to the inner walls of sewage pipelines with different diameters; the scraping assembly comprises a mounting disc detachably connected with the mounting box, multiple sets of extension pieces are arranged on the mounting disc at equal intervals in the circumferential direction of the mounting disc, when the mounting disc is connected with the mounting box, any one set of extension pieces is connected with any one set of telescopic pieces, and when the telescopic pieces act, the multiple sets of extension pieces can be driven to synchronously slide relative to the mounting disc; and the extension piece is attached to the inner wall of the sewage pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of sewage pipe processing equipment, in particular to a regular dredging device for sewage drainage. Background Art

[0002] As an important part of urban infrastructure, sewage pipes can maintain public health and environmental sanitation, effectively collect, treat and discharge sewage and waste discharged from urban life, curb garbage and sewage from polluting soil and groundwater, and maintain public environment and sanitation.

[0003] During long-term use, various debris and sediments will accumulate in the sewage pipes. If they are not cleaned in time, these substances will gradually clog the pipes, causing the sewage to be unable to be discharged normally. Through regular dredging, these debris and sediments can be removed to keep the pipes unobstructed. When dealing with public drainage pipes, high-pressure water guns or sludge suction machines are usually used for sewage cleaning and unblocking operations. However, the use of high-pressure water guns wastes water resources, and the sludge suction machine works too slowly. Regardless of which of the above methods is used, when dredging the pipes, the sludge attached to the inner wall of the pipe cannot be removed very effectively. In the subsequent sewage discharge process, the suspended matter in the sewage will combine with the sludge on the inner wall of the pipe again, causing the sludge on the inner wall of the sewage pipe to accumulate thicker and thicker, which will cause the flow diameter of the sewage pipe to become smaller and smaller, reducing the efficiency of sewage discharge, and the sludge attached to the inside of the pipe can easily cause the pipe to be more easily blocked. Summary of the invention

[0004] The object of the present invention is to provide a regular dredging device for sewage drainage to solve the problems raised in the above-mentioned background technology.

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

[0006] A regular dredging device for sewage drainage, comprising: a mobile vehicle, a liftable installation box is installed on the mobile vehicle, a sizing mechanism is arranged on the installation box, the sizing mechanism comprises a driving assembly and a deflection assembly, the deflection assembly is provided with four groups, each group of the deflection assembly comprises a telescopic member, when the driving assembly is actuated, the four groups of the deflection assembly are deflected relative to the installation box, and the telescopic member can be driven to telescope, so that the telescopic member can fit with the inner wall of the sewage pipe with different diameters;

[0007] The scraping assembly includes a mounting plate detachably connected to the mounting box, and a plurality of groups of extension members are equidistantly arranged along the circumferential direction of the mounting plate. When the mounting plate is connected to the mounting box, any group of the extension members is connected to any group of the telescopic members. When the telescopic members are actuated, they can drive the plurality of groups of extension members to slide synchronously relative to the mounting plate, so that the extension members fit the inner wall of the sewage pipe.

[0008] The periodic dredging device for sewage drainage as described above: the driving assembly includes a turntable rotatably mounted on the mounting box, four sets of driving gears rotatably mounted on the turntable, and the driving gears are meshed with the gear ring rotatably mounted on the turntable.

[0009] The periodic dredging device for sewage drainage as described above: the deflection assembly includes a deflection cylinder rotatably mounted on the turntable, a driven gear rotatably mounted on the deflection cylinder, the driven gear meshes with an arc-shaped tooth plate fixedly arranged on the turntable, and a telescopic structure is also arranged on the deflection cylinder, the telescopic structure is connected to the telescopic part, when the deflection cylinder rotates, the driven gear cooperates with the arc-shaped tooth plate, and can drive the telescopic part to slide relative to the deflection cylinder.

[0010] The periodic dredging device for sewage drainage as described above: the telescopic member comprises a telescopic rod slidably arranged in the deflection cylinder, and a pulley is rotatably mounted on one end of the telescopic rod away from the driven gear.

[0011] The periodic dredging device for sewage drainage as described above: the telescopic structure includes a pulley rotatably mounted on the deflection cylinder, and two groups of pulleys are arranged along the length direction of the deflection cylinder. A belt is arranged between the two groups of pulleys, and one end of the belt is fixedly connected to the telescopic rod through a connecting piece, and one group of the pulleys is connected to a linkage wheel rotatably mounted on the deflection cylinder through a linkage belt, and the linkage wheel is coaxial with the driven gear.

[0012] The periodic dredging device for sewage drainage as described above: the plug-in sleeve is coaxially fixedly arranged on the mounting plate, the plug-in sleeve is adapted to the docking rod coaxially fixedly arranged on the rotating plate, and the mounting plate is provided with a plurality of groups of plug-in tubes equidistantly arranged along its circumferential direction, and the extension piece is slidably arranged in each group of the plug-in tubes.

[0013] The periodic dredging device for sewage drainage as described above: the extension member includes an extension rod slidably arranged in the plug-in cylinder, and a scraper is fixedly arranged at one end of the extension rod away from the mounting plate.

[0014] The periodic dredging device for sewage drainage as described above: the plug-in sleeve is also slidably provided with a sleeve ring, and the sleeve ring is provided with multiple groups of hinged rods equidistantly along its circumferential direction, and the end of the hinged rod away from the sleeve ring is connected to the extension rod.

[0015] The periodic dredging device for sewage drainage as described above: a slide rail is fixedly arranged on any group of extension rods, a protruding column is slidably arranged in the slide rail, and the protruding column is fixedly connected to any group of the telescopic rods.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By setting a sizing mechanism and a scraping assembly, and utilizing the cooperation between a driving assembly and a deflection assembly, the four groups of deflection cylinders can be driven to perform directional deflection. When the deflection cylinder deflects, the telescopic structure arranged on the deflection cylinder cooperates with the arc-shaped toothed plate fixedly arranged on the turntable to drive the telescopic rod to extend outward. At the same time, the extension rod of the scraping assembly will synchronously approach the inner wall of the pipe. In the process of extending the telescopic rod, the axis of the installation box driven by the cylinder to be lifted and lowered in the vertical direction of the space can gradually remain coaxial with the axis of the sewage pipe. After the pulleys at the ends of the four groups of telescopic rods are in contact with the sewage pipe, the axis of the installation box remains coaxial with the axis of the sewage pipe. At the same time, the scraper blade fits the inner wall of the sewage pipe. After the scraper blade fits the inner wall of the pipe, the first motor is started, and the turntable that continuously rotates in the same direction can drive the scraper blade to desilt the inner wall of the pipe.

[0018] Compared with the traditional working method of using high-pressure water guns or sludge suction machines, the above method is more effective in removing sludge from the inner wall of the pipe, can perform dredging operations on the walls of sewage pipes of different diameters, has relatively high adaptability and practical performance, and has a faster dredging speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a regular dredging device for sewage drainage.

[0020] Figure 2 This is a structural schematic diagram of the connection between the scraping component and the sizing mechanism in the periodic dredging device for sewage drainage.

[0021] Figure 3 This is a schematic diagram of the structure inside the installation box in the regular dredging device for sewage drainage.

[0022] Figure 4 This is a schematic diagram of the structure of the sizing mechanism in the periodic dredging device for sewage drainage.

[0023] Figure 5 This is a schematic diagram of the structure of the drive components in the periodic dredging device for sewage drainage.

[0024] Figure 6 A schematic diagram of the structure of one set of deflection components in a periodic dredging device for sewage drainage.

[0025] Figure 7 A schematic diagram of the structure of another set of deflection components in the periodic dredging device for sewage drainage.

[0026] Figure 8 Schematic diagram of the structure of the scraping component in the periodic dredging device for sewage drainage.

[0027] Fig. 9This is a structural diagram of the connection between the extension piece and the mounting plate in the periodic dredging device for sewage drainage.

[0028] In the figure: 1, mobile car; 2, installation box; 3, extension rod; 301, connecting block; 4, scraper; 5, plug-in cylinder; 501, through groove; 6, first motor; 7, installation plate; 701, plug-in sleeve; 8, deflection cylinder; 801, slide groove; 9, telescopic rod; 10, longitudinal member; 11, cylinder; 12, drive rod; 13, turntable; 1301, docking rod; 1302, protrusion; 14, pulley; 15, slide rail; 16, gear ring; 17, protruding column; 18, driving gear; 19, arc-shaped gear plate; 20, driven gear; 21, connecting member; 22, pulley; 23, belt; 24, linkage wheel; 25, sleeve ring; 26, hinged rod; 27, second motor. DETAILED DESCRIPTION

[0029] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0030] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0031] In addition, in order to better illustrate the present application, numerous specific details are provided in the specific embodiments below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, and elements well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0032] See also Figure 1-Figure 9 In an embodiment of the present invention, a regular dredging device for sewage drainage includes:

[0033] A mobile vehicle 1, wherein a liftable installation box 2 is installed on the mobile vehicle 1, and a sizing mechanism is provided on the installation box 2, wherein the sizing mechanism includes a driving component and a deflection component, wherein four groups of the deflection components are provided, and each group of the deflection components includes a telescopic member, and when the driving component is actuated, the four groups of the deflection components are deflected relative to the installation box 2, and the telescopic member can be driven to telescope, so that the telescopic member can fit the inner wall of the sewage pipe with different diameters;

[0034] See also Figure 1 , Figure 2A longitudinal member 10 is fixedly provided on the chassis of the mobile vehicle 1, and the installation box 2 is inserted in the longitudinal member 10, and a cylinder 11 is fixedly provided on the chassis of the mobile vehicle 1, and the telescopic end of the cylinder 11 is fixedly connected to the installation box 2. In actual use, the mobile vehicle 1 is moved into the sewage pipe, and the sizing mechanism is driven to operate according to the diameter of the sewage pipe. When the sizing mechanism operates, the cylinder 11 also operates, and can push the installation box 2 to rise and fall in the vertical direction of the space until the diameter of the sizing mechanism is the same as the diameter of the sewage pipe. The sizing mechanism and the cylinder 11 stop operating. At this time, the installation box 2 is coaxial with the sewage pipe to facilitate subsequent pipeline cleaning work.

[0035] The driving assembly includes a turntable 13 rotatably mounted on the mounting box 2, and four sets of driving gears 18 are rotatably mounted on the turntable 13, and the driving gears 18 are meshed with a gear ring 16 rotatably mounted on the turntable 13;

[0036] For details, please refer to Figure 3 A driving rod 12 is coaxially fixed on the turntable 13, and the driving rod 12 is coaxially fixed to the output shaft of the first motor 6 fixed on the mounting box 2. When the first motor 6 is started, the output shaft of the first motor 6 can drive the turntable 13 to rotate continuously in the same direction, and then drive the four groups of deflection assemblies to rotate in the sewage pipe, thereby performing dredging operations on the inner wall of the sewage pipe.

[0037] The deflection assembly includes a deflection cylinder 8 rotatably mounted on the rotating disk 13, a driven gear 20 rotatably mounted on the deflection cylinder 8, the driven gear 20 meshes with an arc-shaped toothed plate 19 fixedly mounted on the rotating disk 13, and a telescopic structure is also provided on the deflection cylinder 8, the telescopic structure is connected to the telescopic member, and when the deflection cylinder 8 rotates, the driven gear 20 cooperates with the arc-shaped toothed plate 19 to drive the telescopic member to slide relative to the deflection cylinder 8;

[0038] Preferably, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 The inner wall and the outer wall of the gear ring 16 are both provided with a toothed structure, and the toothed structure is meshed with the driving gear 18, and the driving gear 18 is as shown in FIG. Figure 5As shown, they are arranged at intervals on the inner and outer sides of the gear ring 16, wherein the driving gear 18 arranged on the inner side of the gear ring 16 is connected to the rotating shaft of the deflection cylinder 8 through a linkage belt, and the driving gear 18 arranged on the outer side of the gear ring 16 is directly coaxially fixed to the rotating shaft of the deflection cylinder 8, and any one of the above-mentioned driving gears 18 is coaxially fixed to the output shaft of the second motor 27 fixedly arranged on the rotating disk 13 (in the present invention, the output shaft of the second motor 27 is coaxially fixed to any one of the driving gears 18 on the outer side of the gear ring 16);

[0039] When the mobile vehicle 1 moves into the sewage pipe, the second motor 27 is started, and the output shaft of the second motor 27 can drive the driving gear 18 to rotate counterclockwise (combined with the Figure 5 ), at this time, the driving gear 18 can force the gear ring 16 to rotate clockwise. At this time, the clockwise rotating gear ring 16 can drive the driving gear 18 arranged on the inner side of the gear ring 16 to rotate clockwise, and at the same time force the remaining set of driving gears 18 on the outer side of the gear ring 16 to rotate counterclockwise. During the rotation, the driven gear 20 and the arc-shaped toothed plate 19 enter into a meshing transmission state, which can drive the telescopic structure to move, and then drive the telescopic part to slide relative to the deflection cylinder 8, so that the telescopic part can fit the closure of the sewage pipe, thereby facilitating the subsequent cleaning of the inner wall of the pipe.

[0040] The telescopic member comprises a telescopic rod 9 slidably disposed in the deflection cylinder 8, and a pulley 14 is rotatably mounted on one end of the telescopic rod 9 away from the driven gear 20;

[0041] In particular, a position sensor (not shown in the figure) is provided on the pulley 14, and the sensor can detect the position of the pulley 14. When the four sets of pulleys 14 are in contact with the inner wall of the sewage pipe, the position sensor can send a stop signal to the second motor 27 to facilitate subsequent dredging operations.

[0042] The telescopic structure includes a pulley 22 rotatably mounted on the deflection cylinder 8, and two groups of pulleys 22 are arranged along the length direction of the deflection cylinder 8. A belt 23 is arranged between the two groups of pulleys 22, and one end of the belt 23 is fixedly connected to the telescopic rod 9 through a connecting piece 21, and one group of the pulleys 22 is connected to a linkage wheel 24 rotatably mounted on the deflection cylinder 8 through a linkage belt, and the linkage wheel 24 is coaxial with the driven gear 20. It should be supplemented that the radius of the linkage wheel 24 is a multiple of the radius of the pulley 22, so that when the linkage wheel 24 rotates, it can drive the pulley 22 to rotate a certain angle, and then drive the upper end of the belt 23 to move a moving distance, so that it can normally drive the telescopic rod 9 to extend outward a certain distance;

[0043] See also Figure 6 , Figure 7The deflection cylinder 8 is provided with a slide groove 801, the axis of the arc-shaped tooth plate 19 is coaxial with the axis of the deflection cylinder 8, the connecting member 21 is slidably arranged in the slide groove 801, and is fixedly connected to the upper end of the belt 23. In particular, when the telescopic rod 9 contacts the inner wall of the sewage pipe, it can also play a certain supporting and stabilizing role. In order to enable the telescopic rod 9 to support the pipe normally and stably, the maximum rotation angle of the deflection cylinder 8 should be set at ninety degrees, so the circular angle corresponding to the arc-shaped tooth plate 19 is ninety degrees;

[0044] In the initial state, the above four groups of deflection cylinders 8 are all kept vertical to the horizontal ground. At this time, the telescopic rod 9 is immersed in the deflection cylinder 8, and the mobile vehicle 1 can close and clean the sewage pipe with the smallest diameter. When the diameter of the sewage pipe is larger, the second motor 27 is started. Then, under the drive of the driving component, the deflection cylinder 8 is directional deflected. During the deflection process, the driven gear 20 rotates in a directional manner under the cooperation of the arc-shaped tooth plate 19. Then, the rotating driven gear 20 can drive the pulley 22 to rotate continuously in the same direction under the cooperation of the linkage wheel 24 and the linkage belt. Then, the rotating pulley 22 can drive the belt 23 to rotate continuously in the same direction. During this process, the connecting piece 21 fixedly connected to the upstream end of the belt 23 can drive the telescopic rod 9 to extend toward the outside of the deflection cylinder 8. During the extension process, The cylinder 11 can move synchronously to raise the axis of the installation box 2 until the pulleys 14 at the ends of the four sets of telescopic rods 9 are in contact with the inner wall of the sewage pipe. The sensor arranged on the pulley 14 will send a stop signal to the second motor 27 to drive the second motor 27 to stop working. At this time, the axis of the installation box 2 is coaxial with the sewage pipe, and the four sets of pulleys 14 are in contact with the inner wall of the sewage pipe. Subsequently, when the mobile vehicle 1 moves, the pulley 14 can slide in contact with the inner wall of the sewage pipe, and cooperate with the scraping component detachably installed on the installation box 2. The mobile vehicle 1 can scrape off the sticky materials on the inner wall of the sewage pipe. By regularly using the mobile vehicle 1 to perform the cleaning operation of the inner wall of the pipe, the sewage flow diameter of the pipe will not be blocked due to the long-term accumulation of sludge, thereby maintaining the normal use of the sewage pipe.

[0045] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 , Fig. 9 , a regular dredging device for sewage drainage, further comprising a scraping assembly, the scraping assembly comprising a mounting plate 7 detachably connected to the mounting box 2, the mounting plate 7 being provided with a plurality of groups of extension members equidistantly arranged along its circumferential direction, when the mounting plate 7 is connected to the mounting box 2, any group of the extension members is connected to any group of the telescopic members, and when the telescopic members are in motion, the plurality of groups of the extension members can be driven to synchronously slide relative to the mounting plate 7, so that the extension members are fitted to the inner wall of the sewage pipe;

[0046] The mounting plate 7 is coaxially fixed with a plug-in sleeve 701, which is adapted to a docking rod 1301 coaxially fixed with a plug-in sleeve 701 on the rotating plate 13, and the mounting plate 7 is equidistantly provided with a plurality of groups of plug-in sleeves 5 along its circumferential direction, and each group of the plug-in sleeves 5 is slidably provided with the extension piece;

[0047] The extension member comprises an extension rod 3 slidably disposed in the plug-in tube 5, and a scraper 4 is fixedly disposed at one end of the extension rod 3 away from the mounting plate 7;

[0048] The plug-in sleeve 701 is also slidably provided with a sleeve ring 25, and the sleeve ring 25 is provided with a plurality of sets of hinged rods 26 at equal intervals along its circumferential direction, and one end of the hinged rod 26 away from the sleeve ring 25 is connected to the extension rod 3;

[0049] For details, please refer to Figure 8 , Fig. 9 The above-mentioned plug-in tubes 5 and extension rods 3 are equidistantly arranged in six groups along the circumferential direction of the mounting plate 7. A through groove 501 is provided on each group of the plug-in tubes 5. A connecting block 301 fixedly connected to the extension rod 3 is slidably arranged in the through groove 501. The connecting block 301 is connected to the sleeve ring 25 through a hinge rod 26. Under the connection action of the fixed-length hinge rod 26, the distance between the sleeve ring 25 and the mounting plate 7 is changed, so that the extension rod 3 can be driven to slide relative to the plug-in tube 5, so that the scraper 4 can be suitable for cleaning operations of sewage pipes with different diameters.

[0050] A slide rail 15 is fixedly arranged on any one group of extension rods 3. In particular, the axis of the slide rail 15 is coaxial with the axis of the installation box 2. The radius of the slide rail 15 is the distance between the protruding column 17 and the axis of the installation box 2 in the initial state. A protruding column 17 is slidably arranged in the slide rail 15. The protruding column 17 is fixedly connected to any one group of the telescopic rods 9.

[0051] Preferably, see Figure 4 , Figure 8 , Fig. 9, the above-mentioned docking rod 1301 is fixedly provided with a protrusion 1302, and the plug-in sleeve 701 is provided with a plug-in groove adapted to the docking rod 1301. Before the mobile vehicle 1 performs dredging operations, the four groups of deflection tubes 8 remain in the initial state. At this time, the sleeve ring 25 is away from the mounting plate 7, and the extension rod 3 is immersed in the plug-in tube 5. When the mounting plate 7 and the turntable 13 are fixedly connected by the plug-in sleeve 701 and the docking rod 1301, the slide rail 15 can just be combined with the protruding column 17. At this time, the protruding column 17 is located at the end of the travel of the slide rail 15. Subsequently, the mounting plate 7 and the turntable 13 are fixed by bolts. Combined with the above, when the telescopic rod 9 is driven by the driving assembly to deflect relatively When the cylinder 8 slides, the protruding column 17 can slide in the slide rail 15. During the sliding process, the protruding column 17 that slides synchronously with the telescopic rod 9 squeezes the inner wall of the slide rail 15, which can force the extension rod 3 to extend outward until the pulley 14 fits the inner wall of the sewage pipe, and the scraper 4 can also fit the inner wall of the sewage pipe at the same time. Then, the first motor 6 is started, and the first motor 6 can drive the turntable 13 to rotate continuously in the same direction. The turntable 13 drives the scraper 4 to rotate, and the inner wall of the sewage pipe can be desilted. At this time, the mobile vehicle 1 is driven to move forward to scrape the silt from the inner wall of the entire sewage pipe, so as to prevent clogging in the sewage pipe.

[0052] In combination with the above, with the cooperation between the scraping assembly and the sizing mechanism, the mobile vehicle 1 can perform sludge scraping operations on the inner walls of sewage pipes of different diameters, and the dredging speed is fast and the dredging effect is good.

[0053] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0054] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A regular dredging device for sewage drainage, characterized in that: include: A mobile vehicle (1), wherein a liftable installation box (2) is installed on the mobile vehicle (1), and a sizing mechanism is arranged on the installation box (2), wherein the sizing mechanism comprises a driving component and a deflection component, wherein the deflection components are arranged in four groups, and each group of the deflection components comprises a telescopic member, and when the driving component is actuated, the four groups of the deflection components are deflected relative to the installation box (2), and the telescopic member can be driven to telescope, so that the telescopic member can fit the inner wall of a sewage pipe of different diameters; A scraping assembly, the scraping assembly comprising a mounting plate (7) detachably connected to the mounting box (2), the mounting plate (7) being provided with a plurality of groups of extension members equidistantly arranged along its circumferential direction, and when the mounting plate (7) is connected to the mounting box (2), any group of the extension members is connected to any group of the telescopic members, and when the telescopic members are actuated, they can drive the plurality of groups of the extension members to slide synchronously relative to the mounting plate (7), so that the extension members fit the inner wall of the sewage pipe.

2. A regular dredging device for sewage drainage according to claim 1, characterized in that: The driving assembly comprises a turntable (13) rotatably mounted on the mounting box (2), four sets of driving gears (18) rotatably mounted on the turntable (13), and the driving gears (18) mesh with a gear ring (16) rotatably mounted on the turntable (13).

3. A regular dredging device for sewage drainage according to claim 2, characterized in that: The deflection assembly comprises a deflection cylinder (8) rotatably mounted on the rotating disk (13); a driven gear (20) is rotatably mounted on the deflection cylinder (8); the driven gear (20) is meshed with an arc-shaped toothed plate (19) fixedly mounted on the rotating disk (13); and a telescopic structure is also arranged on the deflection cylinder (8); the telescopic structure is connected to the telescopic member; when the deflection cylinder (8) rotates, the driven gear (20) cooperates with the arc-shaped toothed plate (19) to drive the telescopic member to slide relative to the deflection cylinder (8).

4. A regular dredging device for sewage drainage according to claim 3, characterized in that: The telescopic member comprises a telescopic rod (9) slidably arranged in the deflection cylinder (8), and a pulley (14) is rotatably mounted on one end of the telescopic rod (9) away from the driven gear (20).

5. A regular dredging device for sewage drainage according to claim 4, characterized in that: The telescopic structure comprises a pulley (22) rotatably mounted on the deflection cylinder (8), two groups of the pulleys (22) are arranged along the length direction of the deflection cylinder (8), a belt (23) is arranged between the two groups of the pulleys (22), one end of the belt (23) is fixedly connected to the telescopic rod (9) through a connecting piece (21), and one group of the pulleys (22) is connected to a linkage wheel (24) rotatably mounted on the deflection cylinder (8) through a linkage belt, and the linkage wheel (24) is coaxial with the driven gear (20).

6. A regular dredging device for sewage drainage according to claim 4, characterized in that: A plug-in sleeve (701) is coaxially fixedly arranged on the mounting plate (7), and the plug-in sleeve (701) is adapted to a docking rod (1301) coaxially fixedly arranged on the rotating plate (13). The mounting plate (7) is provided with a plurality of groups of plug-in sleeves (5) equidistantly arranged along its circumferential direction, and the extension piece is slidably arranged in each group of the plug-in sleeves (5).

7. A regular dredging device for sewage drainage according to claim 6, characterized in that: The extension member comprises an extension rod (3) slidably arranged in the plug-in cylinder (5), and a scraper (4) is fixedly arranged at one end of the extension rod (3) away from the mounting plate (7).

8. A regular dredging device for sewage drainage according to claim 7, characterized in that: The plug-in sleeve (701) is also slidably provided with a sleeve ring (25), and the sleeve ring (25) is provided with multiple groups of hinged rods (26) equidistantly along its circumferential direction, and one end of the hinged rod (26) away from the sleeve ring (25) is connected to the extension rod (3).

9. A regular dredging device for sewage drainage according to claim 6, characterized in that: A slide rail (15) is fixedly arranged on any one group of extension rods (3), a protruding column (17) is slidably arranged inside the slide rail (15), and the protruding column (17) is fixedly connected to any one group of telescopic rods (9).

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