A new type of dredging device for urban water supply and drainage

Abstract

The present invention relates to the technical field of dredging devices, and discloses a novel dredging device for urban water supply and drainage, comprising a water supply and drainage pipe, wherein a braking mechanism is movably connected to the middle part of the inner cavity of the water supply and drainage pipe, a first cleaning mechanism is fixedly installed on one side of the braking mechanism, a second cleaning mechanism is fixedly installed on the other side of the braking mechanism, a first feeding mechanism is fixedly installed on the side of the first cleaning mechanism away from the braking mechanism, and a second feeding mechanism is fixedly installed on the side of the second cleaning mechanism away from the braking mechanism; the present invention is facilitated by providing a braking mechanism and a first cleaning mechanism, so that the high-speed screw rotates at high speed after being started by a brake motor, and drives the low-speed screw to rotate after being decelerated by a planetary reducer, and the first cleaning mechanism and the second cleaning mechanism are driven to rotate by the high-speed screw and the low-speed screw respectively, and the first cleaning mechanism and the second cleaning mechanism generate a power difference due to the different rotation speeds while desilting the inner wall of the pipeline, thereby obtaining driving force.

Description

Technical Field

[0001] The present invention relates to the technical field of dredging devices, and more particularly to a novel dredging device for urban water supply and drainage. Background Art

[0002] At present, most of the urban water supply and drainage equipment are dredged with high-pressure water or stirring rods. After dredging by this method, some silt still remains on the inner wall of the pipe. Over time, it will cause certain corrosion to the drainage pipe, thereby reducing the quality of water supply and drainage, and also affecting the service life of the water supply and drainage pipe. Therefore, a water supply and drainage dredging device is used for dredging.

[0003] An existing water supply and drainage dredging device comprises a water inlet pipe and a movable box, in which a motor is installed, and the central axis servo rotation is driven by the motor to enable four sets of cleaning brushes to clean the inner wall of the drain pipe. During the brushing process, the pressure pump flushes the safety material to the inner wall, thereby improving the cleaning effect of the inner wall. At the same time, through the driving device, the screw and the screw sleeve jointly complete the impact of the blocked material, thereby achieving the purpose of dredging the urban water supply and drainage pipes. At the same time, it can also clean and maintain the pipes, reduce the possibility of dirt on the inner wall of the water supply and drainage pipes, reduce the erosion of dirt on the pipes, and extend the service life of the pipes. However, the pressure pump in the mobile box is transported to the vicinity of the four cleaning mechanisms through the branched delivery pipes. Due to the limited length of the delivery pipes, this will limit the range of rotation of the motor, otherwise the delivery pipes will be broken. Since the motor rotating at a small angle cannot provide a strong driving force, it is difficult for the equipment to move on the inner wall of the pipe with silt.

[0004] In addition, the safety material is sprayed onto the inner wall of the pipe, which has a certain position deviation from the cleaning part of the brush, thereby failing to maximize the utilization of the safety material.

[0005] Therefore, a new type of urban water supply and drainage dredging device is in urgent need of. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a novel dredging device for urban water supply and drainage to solve the problems existing in the above-mentioned background technology.

[0007] The present invention provides the following technical solution: a novel dredging device for urban water supply and drainage, comprising a water supply and drainage pipe, a braking mechanism movably connected to the middle portion of the inner cavity of the water supply and drainage pipe, a first cleaning mechanism fixedly mounted on one side of the braking mechanism, a second cleaning mechanism fixedly mounted on the other side of the braking mechanism, a first feeding mechanism fixedly mounted on the side of the first cleaning mechanism away from the braking mechanism, a second feeding mechanism fixedly mounted on the side of the second cleaning mechanism away from the braking mechanism, a first driving mechanism connected to the first cleaning mechanism movably sleeved on the surfaces of the braking mechanism and the first feeding mechanism, and a second driving mechanism connected to the second cleaning mechanism movably sleeved on the surface of the second feeding mechanism;

[0008] The braking mechanism includes a protection box, a brake motor is fixedly mounted on one side of the inner wall of the protection box, the output shaft of the brake motor is fixedly sleeved with a first wheel disc, the surface of the first wheel disc is transmission-connected with the second wheel disc via a crawler belt, a high-speed screw is fixedly sleeved on the side of the second wheel disc close to the first cleaning mechanism, a planetary reducer is fixedly mounted on the side of the second wheel disc close to the second cleaning mechanism, a low-speed screw is fixedly mounted on the side of the planetary reducer away from the second wheel disc, and screw sleeves that are threadedly engaged with the high-speed screw and the low-speed screw are fixedly sleeved on both sides of the protection box;

[0009] The first cleaning mechanism includes a central axis, four electric push rods arranged in a circumferential manner are fixedly mounted around the central axis, and a scrubbing assembly is fixedly mounted on the movable ends of the four electric push rods away from the central axis. A liquid collecting pipe is fixedly connected to the side of the central axis away from the braking mechanism, and infusion tubes connected to the four scrubbing assemblies are fixedly connected around the liquid collecting pipe. A connecting pipe is movably sleeved on the side of the liquid collecting pipe away from the central axis.

[0010] The first feeding mechanism includes a barrel, one side of the barrel is fixedly connected to a pressure pump, one side of the pressure pump is fixedly connected to a thick infusion tube, and the other side of the barrel is fixedly connected to a feeding tube.

[0011] Preferably, the planetary reducer includes a planetary carrier, a sun gear is provided at the center of the planetary carrier, an input shaft is fixedly sleeved on the side of the sun gear close to the second wheel disc, and the input shaft is fixedly sleeved on the second wheel disc at one end away from the sun gear, and three planetary gears arranged in a circle are meshed around the surface of the sun gear, and the outer sides of the three planetary gears are meshed with the inner wall of the planetary carrier, and the three planetary gears are fixedly connected to the chassis through a fixed shaft on the side away from the second wheel disc, and an output shaft is fixedly sleeved on the middle of the chassis, and the output shaft is fixedly sleeved on the low-speed screw at one end away from the chassis.

[0012] Preferably, the outer wall of the planetary reducer is fixedly connected to the inner wall of the protective box, the high-speed screw and the low-speed screw are fixedly installed on both sides of the second wheel disc, and the second wheel disc, the high-speed screw and the low-speed screw are arranged at the central axis position in the inner cavity of the water supply and drainage pipe.

[0013] Preferably, the first driving mechanism includes a first fixed ring and a second fixed ring, the inner sides of the first fixed ring and the second fixed ring are movably connected to the middle of the outer surface of the protection box and the barrel respectively, and four first telescopic rods and second telescopic rods arranged in a circle are fixedly installed around the first fixed ring and the second fixed ring respectively, and the movable ends of the four first telescopic rods and the second telescopic rods close to the inner wall of the water supply and drainage pipe are fixedly installed with universal wheels, and the movable ends of the four first telescopic rods and the second telescopic rods are fixedly sleeved with a cross bar connected to the electric push rod.

[0014] Preferably, the scrubbing assembly is composed of a brush plate and a sponge brush, a plurality of branch tubes are provided inside the brush plate, and the top ends of the branch tubes are connected to the roots of the sponge brush at the top of the brush plate.

[0015] Preferably, both ends of the connecting tube are movably connected to the liquid collecting tube and the thick infusion tube respectively.

[0016] Preferably, the surface of the cross bar is movably connected to the infusion tube, the middle of the cross bar is fixedly connected to the movable end of the electric push rod, and the two ends of the cross bar are respectively fixedly connected to the movable ends of the first telescopic rod and the second telescopic rod.

[0017] Preferably, the braking mechanism, the first cleaning mechanism, the first feeding mechanism, the second cleaning mechanism, the second feeding mechanism, the first driving mechanism and the second driving mechanism are the components of the dredging device, and the composition structure and connection method of the second cleaning mechanism and the second feeding mechanism are exactly the same as the composition structure and connection method of the first cleaning mechanism and the first feeding mechanism. The distinguishing feature is that the safety materials in the second cleaning mechanism and the first cleaning mechanism are a cleaning agent and a rust removal protective agent, and the composition structure and connection method of the second driving mechanism are the same as the structure of the 1 / 2 part of the first driving mechanism located between the first cleaning mechanism and the first feeding mechanism.

[0018] Technical effects and advantages of the present invention:

[0019] 1. The present invention is provided with a braking mechanism and a first cleaning mechanism, which is conducive to driving the first wheel disc fixedly sleeved therewith to rotate at high speed through the output shaft of the brake motor, and then the first wheel disc drives the second wheel disc to rotate at high speed through the crawler belt, and then the second wheel disc drives the high-speed screw fixedly connected to one side of it to rotate at high speed. At the same time, the other side of the second wheel disc drives the low-speed screw to rotate after being decelerated by the planetary reducer, and the first cleaning mechanism and the second cleaning mechanism are respectively driven to rotate by the high-speed screw and the low-speed screw. While the first cleaning mechanism and the second cleaning mechanism are silting and maintaining the inner wall of the pipeline, the different rotation speeds of the first cleaning mechanism and the second cleaning mechanism generate a power difference on both sides thereof, thereby obtaining a driving force from the high-speed side to the low-speed side, thereby making the device move forward.

[0020] 2. The present invention is provided with a first cleaning mechanism and a first feeding mechanism, which is conducive to conveying the cleaning agent in the barrel to the collecting pipe through the thick infusion pipe and the connecting pipe under the pressurization action of the pressure pump, and then conveying it to the washing component through the thin infusion pipe, and then overflowing on the side of the washing component close to the inner wall of the pipeline, wetting the root of the brush in the washing component, thereby achieving an efficient cleaning effect. Among them, the setting of the connecting pipe makes the first feeding mechanism not change its static state as the first cleaning mechanism rotates, which not only maintains the rotation of the first cleaning mechanism, but also does not affect the delivery of the cleaning agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention.

[0023] Figure 3 This is a schematic structural diagram of the first driving mechanism of the present invention.

[0024] Figure 4 It is a schematic structural diagram of the braking mechanism of the present invention.

[0025] Figure 5 It is a structural schematic diagram of a partial side of the braking mechanism of the present invention.

[0026] Figure 6 It is a schematic diagram of the other side structure of the braking mechanism of the present invention.

[0027] Figure 7 This is a schematic structural diagram of the first cleaning mechanism of the present invention.

[0028] Figure 8 It is a schematic diagram of the structure A of the present invention.

[0029] The accompanying drawings are marked as follows: 1. water supply and drainage pipe; 2. brake mechanism; 201. protection box; 202. brake motor; 203. first wheel disc; 204. second wheel disc; 205. crawler; 206. planetary reducer; 2061. planetary carrier; 2062. sun gear; 2063. input shaft; 2064. planetary gear; 2065. chassis; 2066. fixed shaft; 2067. output shaft; 207. high-speed screw; 208. low-speed screw; 209. screw sleeve; 3. first cleaning mechanism; 301. center Shaft; 302, electric push rod; 303, washing assembly; 304, collecting pipe; 305, infusion tube; 306, connecting pipe; 4, first feeding mechanism; 401, material barrel; 402, pressure pump; 403, infusion tube; 404, feeding tube; 5, second cleaning mechanism; 6, second feeding mechanism; 7, first driving mechanism; 701, first fixing ring; 702, second fixing ring; 703, first telescopic rod; 704, second telescopic rod; 705, cross bar; 706, universal wheel; 8, second driving mechanism. DETAILED DESCRIPTION

[0030] The technical solutions of the present invention will be described clearly and completely below in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The novel urban water supply and drainage dredging device involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Reference Figure 1-2 The present invention provides a novel dredging device for urban water supply and drainage, comprising a water supply and drainage pipe 1, a braking mechanism 2 being movably connected to the middle part of the inner cavity of the water supply and drainage pipe 1, a first cleaning mechanism 3 being fixedly installed on one side of the braking mechanism 2, a second cleaning mechanism 5 being fixedly installed on the other side of the braking mechanism 2, a first feeding mechanism 4 being fixedly installed on the side of the first cleaning mechanism 3 away from the braking mechanism 2, a second feeding mechanism 6 being fixedly installed on the side of the second cleaning mechanism 5 away from the braking mechanism 2, a first driving mechanism 7 connected to the first cleaning mechanism 3 being movably sleeved on the surfaces of the braking mechanism 2 and the first feeding mechanism 4, and a second driving mechanism 8 connected to the second cleaning mechanism 5 being movably sleeved on the surface of the second feeding mechanism 6.

[0032] In this embodiment, it should be specifically explained that the braking mechanism 2, the first cleaning mechanism 3, the first feeding mechanism 4, the second cleaning mechanism 5, the second feeding mechanism 6, the first driving mechanism 7 and the second driving mechanism 8 are the components of the dredging device. The composition structure and connection method of the second cleaning mechanism 5 and the second feeding mechanism 6 are exactly the same as the composition structure and connection method of the first cleaning mechanism 3 and the first feeding mechanism 4. The distinguishing feature is the safety material in the second cleaning mechanism 5 and the first cleaning mechanism 3. The former is a cleaning agent and the latter is a rust removal protective agent. The composition structure and connection method of the second driving mechanism 8 are the same as the structure of the 1 / 2 part of the first driving mechanism 7 located between the first cleaning mechanism 3 and the first feeding mechanism 4.

[0033] Reference Figure 3-6 The braking mechanism 2 includes a protective box 201, a brake motor 202 is fixedly mounted on one side of the inner wall of the protective box 201, the output shaft of the brake motor 202 is fixedly sleeved with a first wheel disc 203, the surface of the first wheel disc 203 is transmission-connected with the second wheel disc 204 through a crawler belt 205, a high-speed screw 207 is fixedly sleeved on the side of the second wheel disc 204 close to the first cleaning mechanism 3, a planetary reducer 206 is fixedly mounted on the side of the second wheel disc 204 close to the second cleaning mechanism 5, a low-speed screw 208 is fixedly mounted on the side of the planetary reducer 206 away from the second wheel disc 204, and screw sleeves 209 that are threadedly engaged with the high-speed screw 207 and the low-speed screw 208 are fixedly sleeved on both sides of the protective box 201;

[0034] The planetary reducer 206 includes a planetary carrier 2061, and a sun gear 2062 is provided at the center of the planetary carrier 2061. The side of the sun gear 2062 close to the second wheel disc 204 is fixedly sleeved with a rotation-in shaft 2063, and the end of the rotation-in shaft 2063 away from the sun gear 2062 is fixedly sleeved with the second wheel disc 204. Three planetary gears 2064 arranged in a circle are meshed around the surface of the sun gear 2062. The outer sides of the three planetary gears 2064 are meshed with the inner wall of the planetary carrier 2061. The side of the three planetary gears 2064 away from the second wheel disc 204 is fixedly connected to the chassis 2065 through a fixed shaft 2066. The middle part of the chassis 2065 is fixedly sleeved with a rotation-out shaft 2067, and the end of the rotation-out shaft 2067 away from the chassis 2065 is fixedly sleeved with the low-speed screw 208.

[0035] In this embodiment, it should be specifically noted that the outer wall of the planetary reducer 206 is fixedly connected to the inner wall of the protection box 201, so that the planetary gear 2064 can rotate along the inner wall of the planetary carrier 2061 while the planetary carrier 2061 remains stable;

[0036] The setting of the screw sleeve 209 increases the sealing performance of the protection box 201, preventing external mud and dirty water from entering the inner cavity of the protection box 201;

[0037] The high-speed screw 207 and the low-speed screw 208 are fixedly mounted on both sides of the second wheel disc 204 respectively, and the second wheel disc 204, the high-speed screw 207 and the low-speed screw 208 are arranged at the central axis position in the inner cavity of the water supply and drainage pipe 1. The high-speed rotation of the second wheel disc 204 is converted into low-speed rotation through the planetary reducer 206, so that the high-speed screw 207 maintains high-speed operation, while the low-speed screw 208 maintains relatively low-speed operation, and then the high-speed screw 207 and the low-speed screw 208 respectively drive the first cleaning mechanism 3 and the second cleaning mechanism 5 to produce different speeds, and generate a power difference on both sides of the inner cavity of the water supply and drainage pipe 1 to obtain a driving force from the high-speed side to the low-speed side, thereby making the device move forward.

[0038] Reference Figure 4 and Figure 7 and Figure 8 The first cleaning mechanism 3 includes a central axis 301, and four electric push rods 302 arranged in a circle are fixedly installed around the central axis 301. The movable ends of the four electric push rods 302 away from the central axis 301 are fixedly installed with cleaning components 303. A liquid collecting pipe 304 is fixedly connected to the side of the central axis 301 away from the braking mechanism 2. The liquid collecting pipe 304 is fixedly connected to the periphery of the liquid collecting pipe 304 with infusion tubes 305 connected to the four cleaning components 303 in sequence. A connecting pipe 306 is movably sleeved on the side of the liquid collecting pipe 304 away from the central axis 301.

[0039] The first loading mechanism 4 includes a barrel 401, a pressure pump 402 is fixedly connected to one side of the barrel 401, a thick infusion tube 403 is fixedly connected to one side of the pressure pump 402, and a feeding tube 404 is fixedly connected to the other side of the barrel 401;

[0040] The first driving mechanism 7 includes a first fixed ring 701 and a second fixed ring 702. The inner sides of the first fixed ring 701 and the second fixed ring 702 are movably connected to the middle of the outer surface of the protection box 201 and the material barrel 401 respectively. Four first telescopic rods 703 and second telescopic rods 704 arranged in a circle are fixedly installed around the first fixed ring 701 and the second fixed ring 702. The movable ends of the four first telescopic rods 703 and the second telescopic rods 704 close to the inner wall of the water supply and drainage pipe 1 are fixedly installed with universal wheels 706. The movable ends of the four first telescopic rods 703 and the second telescopic rods 704 are fixedly sleeved with a cross bar 705 connected to the electric push rod 302.

[0041] In this embodiment, it should be specifically explained that the scrubbing assembly 303 is composed of a brush plate and a sponge brush. A plurality of branch pipes are provided inside the brush plate, and the top ends of the branch pipes are connected to the roots of the sponge brushes at the top of the brush plate, thereby increasing the efficiency of cleaning.

[0042] The two ends of the connecting tube 306 are movably connected to the liquid collecting tube 304 and the thick liquid infusion tube 403. The arrangement of the connecting tube 306 prevents the first feeding mechanism 4 from changing its static state as the first cleaning mechanism 3 rotates, thereby maintaining the rotation of the first cleaning mechanism 3 and not affecting the delivery of the cleaning agent.

[0043] The surface of the cross bar 705 is movably connected to the infusion tube 305, the middle part of the cross bar 705 is fixedly connected to the movable end of the electric push rod 302, and the two ends of the cross bar 705 are respectively fixedly connected to the movable ends of the first telescopic rod 703 and the second telescopic rod 704, so that the first telescopic rod 703 and the second telescopic rod 704 are driven to rise and fall synchronously through the lifting and lowering of the electric push rod 302.

[0044] Working principle of the present invention:

[0045] First, place the device in the water supply and drainage pipe to be dredged, further turn on the four electric push rods 302 installed around the central axis 301, and adjust the movable ends of the four electric push rods 302 to the inner wall of the water supply and drainage pipe 1. At the same time, when the movable ends of the four electric push rods 302 are lifted outward, the movable ends of the four electric push rods 302 drive the cross bars 705 fixedly connected thereto to move close to the inner wall of the water supply and drainage pipe 1, and then the two ends of the four cross bars 705 arranged in a circle drive the first telescopic rods 703 and the second telescopic rods 704 fixedly connected thereto to move close to the inner wall of the water supply and drainage pipe 1, and then the universal wheels 706 installed at the bottom of the four groups of first telescopic rods 703 and second telescopic rods 704 are in close contact with the inner wall of the water supply and drainage pipe 1;

[0046] Furthermore, the brake motor 202 is turned on, and the output shaft of the brake motor 202 drives the first wheel disc 203 fixedly sleeved therewith to rotate at high speed. The first wheel disc 203 drives the second wheel disc 204 to rotate at high speed through the crawler belt 205. Then, one side of the second wheel disc 204 drives the high-speed screw 207 fixedly sleeved therewith to rotate at high speed. The other side of the second wheel disc 204 drives the planetary reducer 206 fixedly mounted therewith to reduce speed, and then the planetary reducer 206 drives the low-speed screw 208 fixedly mounted therewith to rotate.

[0047] The working principle of the planetary reducer 206 is as follows: the second wheel disc 204 is connected to the input shaft 2063, and the second wheel disc 204 drives the input shaft 2063 and the sun gear 2062 fixedly connected to the input shaft 2063 to rotate, and the sun gear 2062 drives the three planetary gears 2064 meshed with it to rotate, and the three input shafts 2063 rotate along the inner wall of the planet carrier 2061 meshed with it, and the three input shafts 2063 respectively drive the chassis 2065 to rotate through the three fixed shafts 2066, and the chassis 2065 is output through the output shaft 2067 fixedly connected to it, and drives the low-speed screw 208 fixedly connected to it to rotate, thereby converting the high-speed rotation from the second wheel disc 204 into low-speed rotation;

[0048] Furthermore, the high-speed screw 207 drives the first cleaning mechanism 3 fixedly sleeved therewith to rotate at a high speed, and the low-speed screw 208 drives the second cleaning mechanism 5 fixedly sleeved therewith to rotate, so that the first cleaning mechanism 3 and the second cleaning mechanism 5 desilt and clean the inner wall of the pipe during the rotation process. At the same time, due to the difference in rotation speed of the first cleaning mechanism 3 and the second cleaning mechanism 5, a power difference is generated on both sides of the inner cavity of the water supply and drainage pipe 1, thereby obtaining a driving force pushing from the high-speed side to the low-speed side, wherein the first driving mechanism 7 rotates synchronously along the surfaces of the braking mechanism 2 and the first feeding mechanism 4 as the first cleaning mechanism 3 rotates at a high speed, and the second driving mechanism 8 rotates synchronously along the surface of the second feeding mechanism 6 as the second cleaning mechanism 5 rotates at a low speed, wherein the high-speed screw 207 and the low-speed screw 208 rotate in the same direction, and then the first driving mechanism 7 and the second driving mechanism 8 rotate in the same direction and the rotation speed of the first driving mechanism 7 is greater than that of the second driving mechanism 8, thereby the equipment obtains a forward braking force;

[0049] Furthermore, under the boosting action of the pressure pump 402, the cleaning agent in the barrel 401 is transported to the collecting pipe 304 in sequence through the pressure pump 402, the thick infusion pipe 403, and the connecting pipe 306, and then transported to the washing component 303 through the thin infusion pipe 305 fixedly connected to the collecting pipe 304, and then overflows on the side of the washing component 303 close to the inner wall of the pipeline, and wets the root of the brush in the washing component 303, thereby achieving an efficient cleaning effect. Among them, the setting of the connecting pipe 306 makes the first feeding mechanism 4 not change its static state as the first cleaning mechanism 3 rotates, which not only maintains the rotation of the first cleaning mechanism 3, but also does not affect the delivery of the cleaning agent.

[0050] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0051] Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict.

[0052] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel urban water supply and drainage dredging device, comprising a water supply and drainage pipe (1), characterized in that: A braking mechanism (2) is movably connected to the middle of the inner cavity of the water supply and drainage pipe (1); a first cleaning mechanism (3) is fixedly installed on one side of the braking mechanism (2); a second cleaning mechanism (5) is fixedly installed on the other side of the braking mechanism (2); a first feeding mechanism (4) is fixedly installed on the side of the first cleaning mechanism (3) away from the braking mechanism (2); a second feeding mechanism (6) is fixedly installed on the side of the second cleaning mechanism (5) away from the braking mechanism (2); a first driving mechanism (7) connected to the first cleaning mechanism (3) is movably sleeved on the surfaces of the braking mechanism (2) and the first feeding mechanism (4); a second driving mechanism (8) connected to the second cleaning mechanism (5) is movably sleeved on the surface of the second feeding mechanism (6); The braking mechanism (2) comprises a protection box (201), a brake motor (202) is fixedly mounted on one side of the inner wall of the protection box (201), an output shaft of the brake motor (202) is fixedly sleeved with a first wheel disc (203), a surface of the first wheel disc (203) is transmission-connected with a second wheel disc (204) via a crawler belt (205), a high-speed screw (207) is fixedly sleeved on a side of the second wheel disc (204) close to the first cleaning mechanism (3), a planetary reducer (206) is fixedly mounted on a side of the second wheel disc (204) close to the second cleaning mechanism (5), a low-speed screw (208) is fixedly mounted on a side of the planetary reducer (206) away from the second wheel disc (204), and screw sleeves (209) are fixedly sleeved on both sides of the protection box (201) and are threadedly engaged with the high-speed screw (207) and the low-speed screw (208); The first cleaning mechanism (3) comprises a central axis (301), four electric push rods (302) arranged in a circumferential manner are fixedly mounted around the central axis (301), and a scrubbing assembly (303) is fixedly mounted on the movable ends of the four electric push rods (302) away from the central axis (301), a liquid collecting pipe (304) is fixedly connected to the side of the central axis (301) away from the braking mechanism (2), and transfusion tubes (305) connected to the four scrubbing assemblies (303) are fixedly connected to the sides of the liquid collecting pipe (304), and a connecting pipe (306) is movably sleeved on the side of the liquid collecting pipe (304) away from the central axis (301); The first loading mechanism (4) comprises a material barrel (401), a pressure pump (402) is fixedly sleeved on one side of the material barrel (401), a thick infusion tube (403) is fixedly sleeved on one side of the pressure pump (402), and a feeding tube (404) is fixedly connected on the other side of the material barrel (401).

2. A novel urban water supply and drainage dredging device according to claim 1, characterized in that: The planetary reducer (206) includes a planet carrier (2061), a sun gear (2062) is provided at the center of the planet carrier (2061), a rotating shaft (2063) is fixedly sleeved on the side of the sun gear (2062) close to the second wheel disc (204), and the rotating shaft (2063) is fixedly sleeved on the end away from the sun gear (2062) and the second wheel disc (204), and three planetary gears arranged in a circumferential manner are meshed around the surface of the sun gear (2062). The outer sides of the three planetary gears (2064) are meshed with the inner wall of the planetary carrier (2061); the three planetary gears (2064) are fixedly connected to the chassis (2065) via a fixed shaft (2066) on a side away from the second wheel disc (204); a rotating shaft (2067) is fixedly sleeved in the middle of the chassis (2065); and the rotating shaft (2067) is fixedly sleeved on one end away from the chassis (2065) with a low-speed screw (208).

3. A novel urban water supply and drainage dredging device according to claim 1, characterized in that: The outer wall of the planetary reducer (206) is fixedly connected to the inner wall of the protection box (201), and the high-speed screw (207) and the low-speed screw (208) are respectively fixedly mounted on both sides of the second wheel disc (204), and the second wheel disc (204), the high-speed screw (207) and the low-speed screw (208) are arranged at the central axis position in the inner cavity of the water supply and drainage pipe (1).

4. A novel urban water supply and drainage dredging device according to claim 1, characterized in that: The first driving mechanism (7) comprises a first fixing ring (701) and a second fixing ring (702), the inner sides of the first fixing ring (701) and the second fixing ring (702) are respectively movably connected to the middle of the outer surface of the protection box (201) and the material barrel (401), four first telescopic rods (703) and second telescopic rods (704) arranged in a circumference are fixedly installed around the first fixing ring (701) and the second fixing ring (702), and the movable ends of the four first telescopic rods (703) and the second telescopic rods (704) close to the inner wall of the water supply and drainage pipe (1) are fixedly installed with universal wheels (706), and the movable ends of the four first telescopic rods (703) and the second telescopic rods (704) are fixedly sleeved with a cross bar (705) connected to the electric push rod (302).

5. A novel urban water supply and drainage dredging device according to claim 1, characterized in that: The scrubbing assembly (303) is composed of a brush plate and a sponge brush. A plurality of branch pipes are provided inside the brush plate, and the top ends of the branch pipes are connected to the roots of the sponge brushes on the top of the brush plate.

6. A novel urban water supply and drainage dredging device according to claim 1, characterized in that: The two ends of the connecting tube (306) are respectively movably connected to the liquid collecting tube (304) and the infusion thick tube (403).

7. A novel urban water supply and drainage dredging device according to claim 4, characterized in that: The surface of the cross bar (705) is movably connected to the infusion tube (305), the middle part of the cross bar (705) is fixedly connected to the movable end of the electric push rod (302), and the two ends of the cross bar (705) are respectively fixedly connected to the movable ends of the first telescopic rod (703) and the second telescopic rod (704).

8. The novel urban water supply and drainage dredging device according to claim 4 is characterized in that: The braking mechanism (2), the first cleaning mechanism (3), the first feeding mechanism (4), the second cleaning mechanism (5), the second feeding mechanism (6), the first driving mechanism (7) and the second driving mechanism (8) are components of the dredging device. The components and connection methods of the second cleaning mechanism (5) and the second feeding mechanism (6) are exactly the same as those of the first cleaning mechanism (3) and the first feeding mechanism (4). The difference lies in that the safety materials in the second cleaning mechanism (5) and the first cleaning mechanism (3) are cleaning agents and rust-removing protective agents, respectively. The components and connection methods of the second driving mechanism (8) are the same as those of the 1 / 2 portion of the first driving mechanism (7) located between the first cleaning mechanism (3) and the first feeding mechanism (4).

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