CN220837064U

CN220837064U - Dredging device for water supply and drainage pipeline

Info

Publication number: CN220837064U
Application number: CN202321515774.9U
Authority: CN
Inventors: 龙巧仙; 赵畅; 李云
Original assignee: Yunnan Chengyuan Engineering Construction Co ltd
Current assignee: Yunnan Chengyuan Engineering Construction Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2024-04-26
Anticipated expiration: 2033-06-14

Abstract

The utility model discloses a dredging device for a water supply and drainage pipeline, which comprises a trolley and a first fixed shaft, wherein the first fixed shaft is arranged at the central position inside the trolley, three groups of equidistant first fixed plates are sleeved on the surface of the first fixed shaft, three groups of equidistant first hydraulic cylinders are sleeved on the surface of the first fixed shaft on one side of the first fixed plate, first push rods are arranged at the top ends of the first hydraulic cylinders, three groups of equidistant second fixed plates are sleeved on the surface of the first fixed shaft on one side of the first hydraulic cylinder, and three groups of equidistant third fixed plates are sleeved on the surface of the first fixed shaft, which is close to the second fixed plates. The utility model not only realizes the reciprocating movement crushing operation of the water supply and drainage pipeline dredging device on the water drainage pipeline, facilitates the up-down rotation angle adjustment crushing operation, facilitates the close-type cleaning of the inner wall of the water drainage pipeline, but also increases the application range of the equipment and improves the stability of the water supply and drainage pipeline dredging device during operation.

Description

Dredging device for water supply and drainage pipeline

Technical Field

The utility model relates to the technical field of pipeline dredging, in particular to a dredging device for a water supply and drainage pipeline.

Background

The water supply and drainage pipeline generally refers to a pipeline of a municipal water supply and drainage system, a municipal water supply and drainage pipeline and a building water supply and drainage pipeline, wherein the water supply and drainage pipeline is a pipeline for supplying domestic production water for residents and factories and mines transportation enterprises, and many impurities and garbage can be generated in the water supply and drainage process, so that the water supply and drainage pipeline is blocked, and the dredging cost is high.

The dredging device for the water supply and drainage pipelines comprises four corners of the inner walls of the front side and the rear side of a box body, rotating motors a are fixedly arranged at the four corners of the front side and the rear side of the box body respectively, motor shafts of eight rotating motors a penetrate through the four corners of the front side and the rear side of the box body respectively, rotating wheels are fixedly arranged at shaft heads, a plurality of anti-skid blocks are fixedly arranged on outer rings of the eight rotating wheels, and a rotating motor b is fixedly arranged at the middle end of the inner wall of the left side of the box body;

The utility model realizes that the box body is convenient to start the eight rotating motors a and b, and then the box body is put into a pipeline or a closestool, so that the box body is driven by the rotating wheel to move towards the lower side of the pipeline until the drill bit contacts with a blockage to dredge the blockage, but the problem that the traditional pipeline dredging device is not beneficial to reciprocating movement crushing operation of the drainage pipeline, vertical rotation type angle adjustment crushing operation is carried out, the inner wall of the drainage pipeline is cleaned closely, and the use range of equipment and the stability during operation are affected is not solved.

Disclosure of utility model

The utility model aims to provide a dredging device for a water supply and drainage pipeline, which solves the problems that the prior art is inconvenient to carry out reciprocating movement crushing operation on the drainage pipeline, carries out vertical rotation angle adjustment crushing operation, and carries out close cleaning on the inner wall of the drainage pipeline, thereby influencing the application range of equipment and the stability of the dredging device for the water supply and drainage pipeline.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the dredging device for the water supply and drainage pipeline comprises a trolley and a first fixed shaft, wherein the first fixed shaft is arranged at the central position inside the trolley, three groups of equidistant first fixed plates are sleeved on the surface of the first fixed shaft, three groups of equidistant first hydraulic cylinders are sleeved on the surface of the first fixed shaft on one side of the first fixed plate, first push rods are arranged at the top ends of the first hydraulic cylinders, three groups of equidistant second fixed plates are sleeved on the surface of the first fixed shaft on one side of the first hydraulic cylinder, three groups of equidistant third fixed plates are sleeved on one side of the surface of the first fixed shaft, which is close to the second fixed plates, second slide rails are arranged on one side of the third fixed plates, second bayonet locks are arranged on the outer walls of the second slide rails, three groups of equidistant fourth hydraulic cylinders are arranged on the outer walls of the first fixed shafts on one side of the second slide rails, the top end of the fourth hydraulic cylinder is provided with a third push rod, the top end of the third push rod is provided with a fixed disc, the surface of the third push rod below the fixed disc is sleeved with a shaft sleeve, one end of the shaft sleeve extends to the surface of the second slide rail, the shaft sleeve is in sliding connection with the second slide rail, the side wall of the trolley on one side of the first fixed shaft is provided with a fourth fixed plate, the outer wall of the fourth fixed plate is provided with a second shaft connector, the outer wall of the fourth fixed plate on one side of the second shaft connector is provided with a second supporting block, the fourth fixed plate is movably connected with the second supporting block through the second shaft connector, one end of the second supporting block, far away from the trolley, is provided with a fixed barrel, the central position of the inside of the fixed barrel is provided with the third hydraulic cylinder, the outer wall of the fourth fixed plate on two sides of the fixed barrel is provided with a first supporting block, the first support block is close to the one end of fourth fixed plate and installs first spindle connector, the second pneumatic cylinder is installed to one side that fourth fixed plate was kept away from to the one end of first support block, the second push rod is installed to the bottom of second pneumatic cylinder, the third spindle connector is installed to the bottom of second push rod, and the second push rod passes through third spindle connector and fixed bucket swing joint, install first slide rail on the inner wall of fixed bucket, the first slider of surface mounting of first slide rail, the stopper is installed to the bottom of fixed bucket one side, the inside of first slider is equipped with first bayonet lock, and first slider and first slide rail sliding connection, the second motor is installed to the bottom of first slider, the second fixed axle is installed to the output of second motor, the crushing head is installed to the one end that the second motor was kept away from to the second fixed axle.

Preferably, a fixing piece is installed at the top end of the first push rod, and a fixing thorn is installed at the top end of the fixing piece.

Preferably, the top of the fixed disk is provided with a supporting frame, and the supporting frame is fixedly connected with the fixed disk.

Preferably, the surface of the support frame is provided with a first motor, the output end of the first motor is provided with a wheel support shaft, and one end of the wheel support shaft far away from the first motor is provided with a travelling wheel.

Preferably, a remote controller is installed on the outer wall of the trolley, an electric wire is installed on the outer wall of the trolley on one side of the remote controller, and the output end of the remote controller is electrically connected with the input ends of the first hydraulic cylinder, the fourth hydraulic cylinder, the second hydraulic cylinder, the first motor, the second motor and the third hydraulic cylinder.

Preferably, a fourth push rod is installed at the output end of the third hydraulic cylinder, and one end, far away from the third hydraulic cylinder, of the fourth push rod is fixedly connected with the second motor.

Compared with the prior art, the utility model has the beneficial effects that: the water supply and drainage pipeline dredging device not only realizes the reciprocating movement crushing operation of the water supply and drainage pipeline dredging device on the drainage pipeline, facilitates the vertical rotation type angle adjustment crushing operation, facilitates the close-type cleaning of the inner wall of the drainage pipeline, but also increases the application range of equipment and improves the stability of the water supply and drainage pipeline dredging device during operation;

(1) The second motor drives the second fixed shaft to rotate, the second fixed shaft drives the crushing head to rotate, the crushing head is used for crushing sludge, household garbage, solid particles and other substances in the drainage pipeline, the remote controller receives an instruction to open the third hydraulic cylinder, the third hydraulic cylinder reciprocates, the third hydraulic cylinder drives the fourth push rod to reciprocate, the fourth push rod drives the second motor, the second fixed shaft and the crushing head to synchronously reciprocate to perform reciprocating crushing operation, the second hydraulic cylinder drives the second push rod to move, the second push rod drives the fixed barrel to rotate through the third shaft connector, the fixed barrel drives the second support block to synchronously rotate, the second support block rotates with the second shaft connector as a shaft to drive the crushing head to rotate, and the up-down rotation type angle adjustment crushing operation is performed, so that the reciprocating movement crushing operation of the drainage pipeline dredging device is realized, the up-down rotation type angle adjustment crushing operation is facilitated, the working range of the pipeline dredging device is increased, and the inner wall of the pipeline is conveniently cleaned in a close mode;

(2) The wheel supporting shaft is driven by the first motor to rotate, the travelling wheel is driven by the wheel supporting shaft to rotate, the third push rod is driven by the fourth hydraulic cylinder to move under the support of the supporting frame and the fixed disc, the supporting frame and the travelling wheel are driven by the third push rod to move, the distance between the three groups of travelling wheels is adjusted, so that the travelling wheel is convenient to adapt to the movement of pipelines with different diameters, the convenient adjustment type travelling movement of the dredging device of the water supply and drainage pipeline in the drainage pipeline is realized, the cleaning of pipelines with different diameters is convenient, and the application range of equipment is increased;

(3) The first push rod is driven to move through the first hydraulic cylinder, the fixing piece is driven by the first push rod to move synchronously with the fixed thorns, when cleaning operation is carried out, the fixed thorns are contacted with the inner wall of the drainage pipeline, so that the stability of equipment is improved, stable driving support during operation of the dredging device of the water supply and drainage pipeline is realized, movement and shaking of the equipment during cleaning are prevented, and the stability during operation of the dredging device of the water supply and drainage pipeline is improved.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic view of a bottom cross-sectional structure of the present utility model;

FIG. 3 is a schematic side sectional view of the present utility model;

Fig. 4 is an enlarged schematic view of the structure of fig. 1a in cross section according to the present utility model.

In the figure: 1. a trolley; 2. a first fixed shaft; 3. an electric wire; 4. a remote controller; 5. a first fixing plate; 6. a first push rod; 7. a fixing piece; 8. fixing thorns; 9. a first hydraulic cylinder; 10. a second fixing plate; 11. a third fixing plate; 12. a walking wheel; 13. a first motor; 14. a support frame; 15. a fixed plate; 16. a first coupling; 17. a first support block; 18. a second hydraulic cylinder; 19. a limiting block; 20. a second fixed shaft; 21. a crushing head; 22. a second motor; 23. a third hydraulic cylinder; 24. a second shaft coupler; 25. a fourth fixing plate; 26. a second push rod; 27. a third coupler; 28. a fixed barrel; 29. a first slide rail; 30. a first bayonet; 31. a first slider; 32. a second bayonet lock; 33. a second slide rail; 34. a fourth hydraulic cylinder; 35. a third push rod; 36. a shaft sleeve; 37. a second support block; 38. a fourth push rod; 39. and a wheel supporting shaft.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the dredging device for the water supply and drainage pipelines comprises a trolley 1 and a first fixed shaft 2, wherein the first fixed shaft 2 is arranged at the central position inside the trolley 1, three groups of equidistant first fixed plates 5 are sleeved on the surface of the first fixed shaft 2, three groups of equidistant first hydraulic cylinders 9 are sleeved on the surface of the first fixed shaft 2 at one side of the first fixed plates 5, and the first hydraulic cylinders 9 play a role in power driving;

The top end of the first hydraulic cylinder 9 is provided with a first push rod 6, three groups of equidistant second fixing plates 10 are sleeved on the surface of a first fixing shaft 2 at one side of the first hydraulic cylinder 9, three groups of equidistant third fixing plates 11 are sleeved on one side of the surface of the first fixing shaft 2, which is close to the second fixing plates 10, a second sliding rail 33 is arranged at one side of each third fixing plate 11, second clamping pins 32 are arranged on the outer wall of each second sliding rail 33, and three groups of equidistant fourth hydraulic cylinders 34 are arranged on the outer wall of the first fixing shaft 2 at one side of each second sliding rail 33;

The fourth hydraulic cylinder 34 plays a role in power driving, the top end of the fourth hydraulic cylinder 34 is provided with a third push rod 35, the top end of the third push rod 35 is provided with a fixed disc 15, the surface of the third push rod 35 below the fixed disc 15 is sleeved with a shaft sleeve 36, one end of the shaft sleeve 36 extends to the surface of the second sliding rail 33, the shaft sleeve 36 is in sliding connection with the second sliding rail 33, the side wall of the trolley 1 on one side of the first fixed shaft 2 is provided with a fourth fixed plate 25, the outer wall of the fourth fixed plate 25 is provided with a second shaft connector 24, the outer wall of the fourth fixed plate 25 on one side of the second shaft connector 24 is provided with a second supporting block 37, the fourth fixed plate 25 is movably connected with the second supporting block 37 through the second shaft connector 24, one end of the second supporting block 37 away from the trolley 1 is provided with a fixed barrel 28, the central position inside the fixed barrel 28 is provided with a third hydraulic cylinder 23, and the third hydraulic cylinder 23 plays a role in power driving;

The outer walls of the fourth fixing plates 25 on two sides of the fixed barrel 28 are provided with first supporting blocks 17, one ends of the first supporting blocks 17, which are close to the fourth fixing plates 25, are provided with first shaft connectors 16, one sides, which are far away from the fourth fixing plates 25, of the first supporting blocks 17 are provided with second hydraulic cylinders 18, the second hydraulic cylinders 18 play a role in power driving, the bottom ends of the second hydraulic cylinders 18 are provided with second push rods 26, the bottom ends of the second push rods 26 are provided with third shaft connectors 27, the second push rods 26 are movably connected with the fixed barrel 28 through the third shaft connectors 27, the inner walls of the fixed barrel 28 are provided with first slide rails 29, the surfaces of the first slide rails 29 are provided with first slide blocks 31, the bottom ends of one sides of the fixed barrel 28 are provided with limiting blocks 19, the inside of the first slide blocks 31 are provided with first bayonet pins 30, the first slide blocks 31 are in sliding connection with the first slide rails 29, the bottom ends of the first slide blocks 31 are provided with second motors 22, the second motors 22 play a role in power driving, the output ends of the second motors 22 are provided with second fixed shafts 20, and the output ends of the second motors 22 are provided with crushing heads 21, and the second fixed shafts 20 are far away from the second fixed shafts 22;

the second motor 22 is opened by receiving an instruction through the remote controller 4, the second motor 22 plays a role of power driving, the second fixed shaft 20 is driven to rotate by the second motor 22, the crushing head 21 is driven to rotate by the second fixed shaft 20, substances such as sludge, household garbage and solid particles in the drainage pipeline are crushed by the first fixed shaft 21, the remote controller 4 receives the instruction to open the third hydraulic cylinder 23, the third hydraulic cylinder 23 plays a role of power driving, the third hydraulic cylinder 23 reciprocates, the fourth push rod 38 is driven to reciprocate by the third hydraulic cylinder 23, the fourth push rod 38 drives the second motor 22, the second fixed shaft 20 and the crushing head 21 to synchronously reciprocate, the crushing effect is improved, the first slide block 31 is driven to synchronously move on the surface of the first slide rail 29 when the second motor 22 reciprocates, the second slide block 31 slides on the surface of the first slide rail 29 to be supported, the second hydraulic cylinder 18 is driven to reciprocate by the second push rod 18 when the first support block 17 receives the instruction, the second push rod 26 is driven to reciprocate by the second hydraulic cylinder 18, the second push rod 26 is driven to synchronously reciprocate by the second fixed shaft 27, the crushing barrel 28 is driven to rotate by the second support block 28, the second push rod 26 is driven to rotate in a certain angle, and the crushing barrel 37 is driven to rotate in a certain angle, and the crushing barrel is adjusted to rotate, and the crushing barrel is convenient to rotate, and the crushing barrel is driven to rotate, and the crushing barrel is in a fixed and the crushing barrel is rotated to rotate, and the crushing barrel is in a fixed angle to rotate, and the crushing barrel is in a fixed barrel, and the crushing barrel is in the rotation to rotate and a rotary barrel;

the top end of the first push rod 6 is provided with a fixing sheet 7, the top end of the fixing sheet 7 is provided with a fixing thorn 8, the top end of a fixing disc 15 is provided with a supporting frame 14, the supporting frame 14 is fixedly connected with the fixing disc 15, the surface of the supporting frame 14 is provided with a first motor 13, the output end of the first motor 13 is provided with a wheel supporting shaft 39, and one end of the wheel supporting shaft 39 far away from the first motor 13 is provided with a travelling wheel 12;

The outer wall of the trolley 1 is provided with a remote controller 4, the outer wall of the trolley 1 at one side of the remote controller 4 is provided with an electric wire 3, the output end of the remote controller 4 is electrically connected with the input ends of the first hydraulic cylinder 9, the fourth hydraulic cylinder 34, the second hydraulic cylinder 18, the first motor 13, the second motor 22 and the third hydraulic cylinder 23, the output end of the third hydraulic cylinder 23 is provided with a fourth push rod 38, and one end of the fourth push rod 38, which is far away from the third hydraulic cylinder 23, is fixedly connected with the second motor 22;

The remote controller 4 receives the instruction to open three groups of first motors 13, the first motors 13 drive the wheel supporting shafts 39 to rotate, the wheel supporting shafts 39 drive the travelling wheels 12 to rotate, the remote controller 4 receives the instruction to open three groups of fourth hydraulic cylinders 34 under the support of the supporting frame 14 and the fixed disc 15, the fourth hydraulic cylinders 34 drive the third push rods 35 to move, the third push rods 35 drive the fixed disc 15, the supporting frame 14 and the travelling wheels 12 to move, the spacing of the three groups of travelling wheels 12 is adjusted, so that the travelling wheels 12 can be conveniently moved in the drainage pipeline, the convenient adjustment type travelling movement of the dredging device of the drainage pipeline in the drainage pipeline is realized, the cleaning of pipelines adapting to different diameter types is facilitated, and the application range of equipment is increased;

The three groups of first hydraulic cylinders 9 are opened by receiving instructions through the remote controller 4, the first push rod 6 is driven to move by the first hydraulic cylinders 9, the fixing piece 7 and the fixing thorns 8 are driven to move synchronously by the first push rod 6, when cleaning operation is carried out, the fixing thorns 8 are in contact with the inner wall of the drainage pipeline, so that the stability of equipment is improved, stable driving support during operation of the dredging device of the water supply and drainage pipeline is realized, equipment is prevented from moving and shaking during cleaning, and the stability during operation of the dredging device of the water supply and drainage pipeline is improved.

Working principle: when in use, the second motor 22 is firstly turned on by receiving an instruction from the remote controller 4, the second fixed shaft 20 is driven to rotate by the second motor 22, the crushing head 21 is driven to rotate by the second fixed shaft 20, the crushing head 21 crushes sludge, household garbage, solid particles and other substances in the drainage pipeline, the third hydraulic cylinder 23 is turned on by receiving an instruction from the remote controller 4, the third hydraulic cylinder 23 reciprocates, the fourth push rod 38 is driven by the third hydraulic cylinder 23 to reciprocate, the second motor 22, the second fixed shaft 20 and the crushing head 21 are driven by the fourth push rod 38 to synchronously reciprocate, the crushing effect is improved, the first slide block 31 is driven to synchronously move when the second motor 22 reciprocates, the first slide block 31 slides on the surface of the first slide rail 29 to carry out sliding support, the remote controller 4 receives an instruction to open the second hydraulic cylinder 18, the second hydraulic cylinder 18 drives the second push rod 26 to move under the support of the first supporting block 17 to the second hydraulic cylinder 18, the second push rod 26 drives the fixed barrel 28 to rotate through the third coupler 27, the fixed barrel 28 drives the second supporting block 37 to synchronously rotate, the second supporting block 37 rotates around the second coupler 24 to drive the crushing head 21 to rotate so as to perform up-down rotation angle adjustment crushing operation, then the remote controller 4 receives the instruction to open three groups of first motors 13, the first motors 13 drive the wheel supporting shafts 39 to rotate, the wheel supporting shafts 39 drive the travelling wheels 12 to rotate, the remote controller 4 receives the instruction to open three groups of fourth hydraulic cylinders 34 under the support of the support frame 14 and the fixed disc 15, the fourth hydraulic cylinders 34 drive the third push rod 35 to move, the fixed disc 15 is driven by the third push rod 35, the support frame 14 and the travelling wheel 12 move to adjust the interval of three groups of travelling wheels 12, so that the travelling wheels 12 are convenient to adapt to the pipeline movement with different diameters, the travelling wheels 12 are convenient to move inside the drainage pipeline, the remote controller 4 receives instructions to open three groups of first hydraulic cylinders 9, the first hydraulic cylinders 9 drive the first push rods 6 to move, the first push rods 6 drive the fixing sheets 7 and the fixing thorns 8 to synchronously move, and when cleaning operation is carried out, the fixing thorns 8 are in contact with the inner wall of the drainage pipeline, so that the stability of equipment is improved.

Claims

1. The utility model provides a water supply and drainage pipeline pull throughs, includes dolly (1) and first fixed axle (2), its characterized in that: the center position inside the trolley (1) is provided with a first fixing shaft (2), three groups of equidistant first fixing plates (5) are sleeved on the surface of the first fixing shaft (2), three groups of equidistant first hydraulic cylinders (9) are sleeved on the surface of the first fixing shaft (2) on one side of the first fixing plates (5), first push rods (6) are all installed at the top ends of the first hydraulic cylinders (9), three groups of equidistant second fixing plates (10) are sleeved on the surface of the first fixing shaft (2) on one side of the first hydraulic cylinders (9), three groups of equidistant third fixing plates (11) are sleeved on one side, close to the second fixing plates (10), of the third fixing plates (11), second sliding rails (33) are installed on one side of the third fixing plates (11), second clamping pins (32) are installed on the outer walls of the first fixing shafts (2) on one side of the second sliding rails (33), three groups of equidistant second fixing plates (10) are installed on the outer walls of the first fixing shafts (2), four groups of equidistant third fixing plates (34) are installed on the outer walls of the first fixing shafts (2), the top ends of the third sliding shafts (35) are installed on the surfaces of the third sliding shafts (35), the top ends of the third push rods (35) are installed on the surfaces of the third fixing plates (35), and the shaft sleeve (36) is in sliding connection with the second sliding rail (33), a fourth fixing plate (25) is arranged on the side wall of the trolley (1) at one side of the first fixing shaft (2), a second shaft connector (24) is arranged on the outer wall of the fourth fixing plate (25), a second supporting block (37) is arranged on the outer wall of the fourth fixing plate (25) at one side of the second shaft connector (24), the fourth fixing plate (25) is movably connected with the second supporting block (37) through the second shaft connector (24), a fixing barrel (28) is arranged at one end, far away from the trolley (1), of the second supporting block (37), a third hydraulic cylinder (23) is arranged at the central position inside the fixing barrel (28), a first supporting block (17) is arranged on the outer wall of the fourth fixing plate (25) at two sides of the fixing barrel (28), a first shaft connector (16) is arranged at one end, close to the fourth fixing plate (25), of the first supporting block (17), a second pushing rod (26) is arranged at one end, far away from the fourth fixing plate (25), of the second supporting block (17), a second pushing rod (26) is arranged at one end, of the second supporting rod (26) through the second hydraulic cylinder (26), a pushing rod (26) is arranged at the end, and the second pushing rod (26) is movably connected with the second hydraulic rod (26), install first slide rail (29) on the inner wall of fixed bucket (28), first slider (31) that surface mounting of first slide rail (29) was installed, stopper (19) are installed to the bottom of fixed bucket (28) one side, the inside of first slider (31) is equipped with first bayonet lock (30), and first slider (31) and first slide rail (29) sliding connection, second motor (22) are installed to the bottom of first slider (31), second fixed axle (20) are installed to the output of second motor (22), broken head (21) are installed to the one end that second fixed axle (20) kept away from second motor (22).

2. The water supply and drainage pipeline dredging device according to claim 1, wherein: the top of the first push rod (6) is provided with a fixing piece (7), and the top of the fixing piece (7) is provided with a fixing thorn (8).

3. The water supply and drainage pipeline dredging device according to claim 1, wherein: the top of fixed disk (15) all installs support frame (14), support frame (14) and fixed disk (15) fixed connection.

4. A water supply and drainage pipeline pull throughs according to claim 3, characterized in that: the surface of the supporting frame (14) is provided with a first motor (13), the output end of the first motor (13) is provided with a wheel supporting shaft (39), and one end of the wheel supporting shaft (39) far away from the first motor (13) is provided with a travelling wheel (12).

5. The water supply and drainage pipeline dredging device according to claim 1, wherein: install remote controller (4) on the outer wall of dolly (1), install electric wire (3) on the outer wall of dolly (1) of one side of remote controller (4), the output and the input electric connection of first pneumatic cylinder (9), fourth pneumatic cylinder (34), second pneumatic cylinder (18), first motor (13), second motor (22), third pneumatic cylinder (23) of remote controller (4).

6. The water supply and drainage pipeline dredging device according to claim 1, wherein: and a fourth push rod (38) is arranged at the output end of the third hydraulic cylinder (23), and one end, far away from the third hydraulic cylinder (23), of the fourth push rod (38) is fixedly connected with the second motor (22).