CN112064778A

CN112064778A - Sewage pipes shutoff desilting equipment

Info

Publication number: CN112064778A
Application number: CN202011013948.2A
Authority: CN
Inventors: 张酷
Original assignee: Shanghai Meiqin Knitting Co ltd
Current assignee: Shanghai Meiqin Knitting Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2020-12-11

Abstract

The invention relates to the technical field of sewage discharge, in particular to a sewage pipeline plugging and dredging device which comprises a plugging device and a dredging device, wherein the plugging device comprises a plugging body, a plugging cavity is arranged in the plugging body, a plugging shaft extending rightwards is rotatably arranged between the left end wall and the right end wall of the plugging cavity, a splined hole with a rightwards opening is formed in the right end wall of the plugging shaft, the plugging shaft can drive a plugging device in the plugging body to plug a pipeline by rotating, a clamping rod extending rightwards is fixedly arranged on the right end wall of the plugging body, the sewage pipeline plugging and dredging device is simple in structure and convenient to operate, the dredging device automatically performs dredging on the bottom of the pipeline after plugging on the upstream of the pipeline by the plugging device, the influence of flowing sewage on dredging is prevented, the plugging device can be automatically retracted after the dredging device is cleaned, and the device moves at the position with the largest radius of the pipeline, the stability is improved and the forward slip can be effectively prevented.

Description

Sewage pipes shutoff desilting equipment

Technical Field

The invention relates to the technical field of sewage discharge, in particular to a sewage pipeline plugging and dredging device.

Background

Accumulation of long-term use's sewage pipes bottom silt causes former pipe diameter to diminish, influences the emission of sewage, consequently need regularly clean the inner wall of sewage pipes to guarantee the unobstructed of sewage pipes blowdown, adopt the robot to wash it in order to reduce personnel's intensity of labour, and the sewage that flows in the pipeline can influence the effect of decontaminating of robot, and a large amount of sewage make the robot action obstructed easily, consequently, it improves above-mentioned problem to be necessary to design sewage pipes shutoff desilting equipment.

Disclosure of Invention

The invention aims to provide sewage pipeline plugging and dredging equipment which can overcome the defects in the prior art, so that the practicability of the equipment is improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a sewage pipeline plugging and dredging device, which comprises plugging equipment and dredging equipment, wherein the plugging equipment comprises a plugging body, a plugging cavity is arranged in the plugging body, a plugging shaft extending rightwards is rotatably arranged between the left end wall and the right end wall of the plugging cavity, a splined hole with a rightwards opening is arranged on the right end wall of the plugging shaft, the plugging shaft can drive a plugging device in the plugging body to plug a pipeline by rotating, a clamping rod extending rightwards is fixedly arranged on the right end wall of the plugging body, a clamping groove with a downwards opening is arranged on the lower end wall of the clamping rod, the dredging equipment comprises a dredging machine body, a switching cavity is arranged in the dredging machine body, a sliding tooth cavity is arranged on the left side of the switching cavity in the dredging machine body, a gear cavity is arranged on the left side of the sliding tooth cavity in the dredging machine body, a sliding pin cavity is arranged on the left side of the gear cavity, a spline shaft extending leftwards and rightwards is rotatably arranged between the left end wall and the right end wall of the gear cavity, a spline meshed with the spline hole is fixedly arranged at the left end of the spline shaft, a first gear is fixedly arranged in the spline shaft and positioned in the gear cavity, a first rotating shaft extending leftwards and rightwards is rotatably arranged between the switching cavity and the sliding tooth cavity, the first rotating shaft is connected with the spline shaft by a ratchet mechanism, a second gear is fixedly arranged in the sliding tooth cavity and positioned at the first rotating shaft, a gear shaft extending leftwards is rotatably arranged on the right end wall of the gear cavity, a third gear meshed with the first gear is fixedly arranged on the gear shaft, a first threaded hole penetrating leftwards and rightwards is arranged in the gear shaft, a first threaded rod meshed with the first threaded hole and extending leftwards is rotatably arranged in the first threaded hole, and a fourth gear meshed with the second gear is fixedly arranged at the right end of the, a clamping rod cavity with a leftward opening is arranged above the sliding pin cavity, the clamping rod can freely slide in the clamping rod cavity, a sliding pin capable of being meshed with the clamping groove is arranged between the sliding pin cavity and the clamping rod cavity in an up-and-down sliding mode, the lower end wall of the sliding pin is connected with the lower end wall of the sliding pin cavity through a sliding pin spring, a wedge block capable of being abutted to the threaded rod is fixedly arranged on the right end wall of the sliding pin, a worm gear cavity is arranged on the right side of the switching cavity in the desilting machine body, a worm shaft extending left and right is rotatably arranged between the worm gear cavity and the switching cavity, a worm is fixedly arranged in the worm gear cavity, the worm can drive advancing devices positioned on the front side and the rear side of the desilting machine body to drive the desilting equipment to move through forward and backward transmission, supporting devices for controlling the expanding amount of the advancing devices are symmetrically arranged on the two sides of the desilting machine body to horizontally support the equipment at the maximum pipeline radius, the switching chamber right-hand member wall is fixedly provided with the motor, the motor is connected with the motor shaft to power left, the motor shaft can drive through the switching device upwards transmission first pivot with the worm axle rotates in proper order, desilting machine body below is provided with desilting mechanism and washes the silt at the bottom of the pipeline clean, be provided with in the desilting machine body and be used for controlling the switching system of cylinder.

Further, the plugging device comprises four sliding sheet cavities and five sliding sheet cavities, wherein the four sliding sheet cavities and the five sliding sheet cavities are arranged on the left side and the right side of an outer circumference array of the plugging cavity in a staggered mode, the sliding sheet cavities and the plugging bodies rotate to form second threaded rods which extend radially, a plugging shaft is located in the plugging cavity and fixedly provided with a left plugging bevel gear and a right plugging bevel gear, the second threaded rods are located in the plugging bodies and fixedly provided with screw bevel gears meshed with the plugging bevel gears, sliding sheets are arranged in the sliding sheet cavities in a radial sliding mode, screw cavities are arranged in the sliding sheets, the screw cavities are close to the end wall of the center of the array and provided with second threaded holes meshed with the second threaded rods, and rubber pads.

Further, ratchet mechanism includes the ratchet of fixed setting in the first pivot, the inner endwall central symmetry of integral key shaft distributes and has four ratchet spouts, the free slip of ratchet spout internal diameter is provided with the ratchet slide bar, the ratchet slide bar keep away from the axle center terminal surface with the ratchet spout is kept away from the axle center terminal surface and is used ratchet spring to connect, the ratchet slide bar be close to the axle center terminal surface fixed be provided with the smooth ball of ratchet butt.

Furthermore, the advancing device comprises a fan-shaped advancing cavity which is formed by symmetrically communicating a worm gear cavity with a worm rod cavity in a front-back mode and is communicated with the worm gear cavity in a front-back mode, a worm gear shaft is rotatably arranged between the upper end wall and the lower end wall of the advancing cavity, a worm gear meshed with the worm is fixedly arranged on the worm gear shaft, a first belt wheel is fixedly arranged on the worm gear shaft and positioned below the worm gear, an advancing support frame is fixedly arranged on the worm gear shaft, a wheel shaft is rotatably arranged at the end, away from the symmetrical center, of the advancing support frame, wheels are fixedly arranged on the wheel shaft, a second belt wheel is arranged on the wheel shaft and positioned below the wheels, the second belt wheel is connected with the first belt wheel through a belt, an auxiliary support frame is rotatably arranged on the left side of the advancing support.

Further, strutting arrangement includes the cylinder supporting rack that the symmetry set up around desilting fuselage outer end wall left side, it is provided with the support cylinder to slide around on the cylinder supporting rack, the support cylinder power is connected with the support piston rod right, the support piston rod right-hand member fixed be provided with the articulated support connecting rod of supplementary supporting rack, the support connecting rod right-hand member with the supporting rack that gos forward articulates.

Furthermore, the switching device comprises a switching cylinder fixedly arranged on the right end wall of the switching cavity, a switching piston rod is arranged on the switching cylinder in a left power mode, an intermediate shaft is arranged at the left end of the switching piston rod in a rotating mode, an intermediate bevel gear is fixedly arranged at the left end of the intermediate shaft, a first bevel gear capable of being meshed with the intermediate bevel gear is fixedly arranged on the motor shaft, a second bevel gear capable of being meshed with the intermediate bevel gear is fixedly arranged at the left end of the motor shaft, a third bevel gear capable of being meshed with the intermediate bevel gear is fixedly arranged at the right end of the first shaft, and a fourth bevel gear capable of being meshed with the intermediate bevel gear is fixedly arranged at the.

Furthermore, the dredging mechanism comprises a dredging rod which is fixedly arranged below the dredging machine body and extends downwards, a water hose is fixedly arranged at the lower end of the dredging rod, a filter screen is communicated with the other end of the water hose, and the upper end of the water hose is connected with a water pump and then connected to a water spray head fixed on the right end wall of the dredging rod.

Furthermore, the switch system comprises a first switch which is positioned on the left end wall of the dredging machine body and can be abutted against the right end wall of the blocking body, and second switches which can be abutted against the fourth gear are symmetrically arranged on the left end wall and the right end wall of the sliding tooth cavity.

The invention has the beneficial effects that: the dredging equipment for blocking the sewage pipeline, provided by the invention, has a simple structure and is convenient to operate, the dredging equipment automatically carries out dredging on the bottom of the pipeline after the blocking equipment blocks the upstream of the pipeline, the influence of flowing sewage on dredging is prevented, the blocking equipment can be automatically withdrawn after the dredging is finished, the blocking equipment moves at the position with the largest radius of the pipeline, and the advancing and slipping can be effectively prevented while the stability is improved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the whole structure of the sewage pipeline plugging and dredging device.

Fig. 2 is a schematic view of the structure a-a in fig. 1.

FIG. 3 is a schematic diagram of B-B in FIG. 1.

Fig. 4 is an enlarged schematic view of the structure C in fig. 1.

Fig. 5 is a schematic view of the structure in the direction D in fig. 2.

Detailed Description

The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The sewage pipeline plugging and dredging device comprises a plugging device 100 and a dredging device 101, wherein the plugging device 100 comprises a plugging body 6, a plugging cavity 15 is arranged in the plugging body 6, a plugging shaft 5 extending rightwards is arranged between the left end wall and the right end wall of the plugging cavity 15 in a rotating manner, a splined hole 16 with a right opening is formed in the right end wall of the plugging shaft 5, the plugging shaft 5 rotates to drive a plugging device 200 positioned in the plugging body 6 to plug a pipeline, a clamping rod 20 extending rightwards is fixedly arranged on the right end wall of the plugging body 6, a clamping groove 19 with a downward opening is formed in the lower end wall of the clamping rod 20, the dredging device 101 comprises a dredging machine body 99, a switching cavity 40 is arranged in the dredging machine body 99, a sliding tooth cavity 98 is arranged on the left side of the switching cavity 40 in the dredging machine body 99, a gear cavity 97 is arranged on the left side of the sliding tooth cavity 98 in the dredging machine body 99, the dredging machine body 99 is internally provided with a sliding pin cavity 23 on the left side of a gear cavity 97, a spline shaft 18 extending leftwards and rightwards is rotatably arranged between the left end wall and the right end wall of the gear cavity 97, a spline 17 meshed with the spline hole 16 is fixedly arranged at the left end of the spline shaft 18, the spline shaft 18 is fixedly arranged in the gear cavity 97 and is provided with a first gear 47, a first rotating shaft 45 extending leftwards and rightwards is rotatably arranged between a switching cavity 40 and the sliding gear cavity 98, the first rotating shaft 45 is connected with the spline shaft 18 by using a ratchet mechanism 300, the first rotating shaft 45 is fixedly arranged in the sliding gear cavity 98 and is provided with a second gear 46, the right end wall of the gear cavity 97 is rotatably provided with a gear shaft 26 extending leftwards, a third gear 25 meshed with the first gear 47 is fixedly arranged on the gear shaft 26, and a first threaded hole 96 penetrating leftwards and rightwards is arranged, a first threaded rod 24 which is engaged with the first threaded hole 96 and extends left and right is rotatably arranged in the first threaded hole 96, a fourth gear 28 engaged with the second gear 46 is fixedly arranged at the right end of the first threaded rod 24, a clamping rod cavity 95 with a leftward opening is arranged above the sliding pin cavity 23, the clamping rod 20 can freely slide in the clamping rod cavity 95, a sliding pin 21 which can be engaged with the clamping groove 19 is vertically arranged between the sliding pin cavity 23 and the clamping rod cavity 95 in a sliding manner, the lower end wall of the sliding pin 21 is connected with the lower end wall of the sliding pin cavity 23 by using a sliding pin spring 94, a wedge block 22 which can be abutted against the threaded rod 24 is fixedly arranged on the right end wall of the sliding pin 21, a worm gear cavity 33 is arranged at the right side of the switching cavity 40 in the desilting machine body 99, a shaft 32 which extends left and right is rotatably arranged between the worm gear cavity 33 and the switching cavity 40, the worm shaft 32 is positioned in the worm gear cavity 33, a worm 34 is fixedly arranged in the worm gear cavity 33, the worm 34 is driven forwards and backwards to drive advancing devices 400 positioned at the front side and the rear side of the dredging machine body 99 to drive the dredging equipment 101 to move, supporting devices 500 for controlling the unfolding amount of the advancing devices 400 are symmetrically arranged at the two sides of the dredging machine body 99 to horizontally support the equipment at the position with the largest radius of a pipeline, a motor 36 is fixedly arranged on the right end wall of the switching cavity 40, the motor 36 is connected with a motor shaft 37 in a leftward power mode, the motor shaft 37 can drive the first rotating shaft 45 and the worm shaft 32 to rotate successively through the upward transmission of the switching device 600, a dredging mechanism 700 is arranged below the dredging machine body 99 to clean sludge at the bottom of the pipeline, and a switch system 800 for controlling the switching cylinder 35 is arranged in the dredging machine body 99.

Beneficially, the plugging device 200 includes four and five sliding sheet cavities 4 with outward openings, which are arranged in a staggered manner from left to right, of an outer circumferential array of the plugging cavity 15, a second threaded rod 12 extending in the radial direction is rotatably arranged between the sliding sheet cavity 4 and the plugging body 6, the plugging shaft 5 is located in the plugging cavity 15 and fixedly provided with a left plugging bevel gear 14 and a right plugging bevel gear 14, the second threaded rod 12 is located in the plugging body 6 and fixedly provided with a screw bevel gear 13 engaged with the plugging bevel gear 14, a sliding sheet 8 is arranged in the sliding sheet cavity 4 in a radial sliding manner, a screw cavity 9 is arranged in the sliding sheet 8, a second threaded hole 11 engaged with the second threaded rod 12 is arranged on the end wall of the screw cavity 9 close to the center of the array, and a rubber pad 7 is fixedly arranged on the sliding sheet 8 far.

Advantageously, the ratchet mechanism 300 includes a ratchet 63 fixedly disposed on the first rotating shaft 45, four ratchet sliding grooves 64 are symmetrically distributed on the center of the inner end wall of the spline shaft 18, a ratchet sliding rod 66 is freely and radially disposed in each ratchet sliding groove 64, a ratchet spring 65 is used for connecting the end surface of the ratchet sliding rod 66 far away from the shaft center with the end surface of the ratchet sliding groove 64 far away from the shaft center, and a sliding ball 62 abutting against the ratchet 63 is fixedly disposed on the end surface of the ratchet sliding rod 66 close to the shaft center.

Advantageously, the advancing device 400 comprises a fan-shaped advancing cavity 3 which is arranged by the front and the back symmetrical connection of the worm cavity 33 and is penetrated in the front and the back, a worm gear shaft 52 is rotatably arranged between the upper end wall and the lower end wall of the advancing cavity 3, a worm gear 53 meshed with the worm 34 is fixedly arranged on the worm gear shaft 52, a first belt wheel 60 is fixedly arranged on the worm wheel shaft 52 at the lower side of the worm wheel 53, a forward supporting frame 54 is fixedly arranged on the worm wheel shaft 52, the advancing support frame 54 is provided with a wheel shaft 58 far away from the symmetrical center end in a rotating way, wheels 57 are fixedly arranged on the wheel shaft 58, a second belt wheel 59 is arranged on the wheel shaft 58 below the wheel 57, the second belt wheel 59 is connected with the first belt wheel 60 by a belt 56, an auxiliary supporting frame 68 is rotatably arranged on the dredging machine body 99 at the left side of the advancing supporting frame 54, and an auxiliary wheel 2 is rotatably arranged on the auxiliary supporting frame 68.

Beneficially, the supporting device 500 includes a cylinder supporting frame 72 symmetrically arranged in front and back on the left side of the outer end wall of the dredging machine body 99, a supporting cylinder 70 is slidably arranged on the cylinder supporting frame 72 in front and back, a supporting piston rod 69 is dynamically connected to the right side of the supporting cylinder 70, a supporting link 67 hinged to the auxiliary supporting frame 68 is fixedly arranged at the right end of the supporting piston rod 69, and the right end of the supporting link 67 is hinged to the advancing supporting frame 54.

Advantageously, the switching device 600 includes a switching cylinder 35 fixedly disposed on the right end wall of the switching chamber 40, the switching cylinder 35 is provided with a switching piston rod 41 for driving the switching piston rod 35 to the left, an intermediate shaft 42 is rotatably disposed on the left end of the switching piston rod 41, an intermediate bevel gear 44 is fixedly disposed on the left end of the intermediate shaft 42, a first bevel gear 39 capable of meshing with the intermediate bevel gear 44 is fixedly disposed on the motor shaft 37, a second bevel gear 43 capable of meshing with the intermediate bevel gear 44 is fixedly disposed on the left end of the motor shaft 37, a third bevel gear 30 capable of meshing with the intermediate bevel gear 44 is fixedly disposed on the right end of the first rotating shaft 45, and a fourth bevel gear 31 capable of meshing with the intermediate bevel gear 44 is fixedly disposed on the left end.

Advantageously, the dredging mechanism 700 comprises a dredging rod 38 which is fixedly arranged below the dredging machine body 99 and extends downwards, a water hose 50 is fixedly arranged at the lower end of the dredging rod 38, the other end of the water hose 50 is communicated with a filter screen 49, and the upper end of the water hose 50 is connected with a water pump and then connected to a water spraying head 48 fixed on the right end wall of the dredging rod 38.

Advantageously, the switch system 800 comprises a first switch 51 located at the left end wall of the dredging machine body 99 and capable of abutting against the right end wall of the blocking body 6, and the left and right end walls of the sliding gear cavity 98 are symmetrically provided with a second switch 29 capable of abutting against the fourth gear 28.

The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.

The use steps of the sewage pipeline plugging and dredging device are described in detail in the following with reference to fig. 1 to 5:

initial state of the device: the clamping rod 20 is located in the clamping rod cavity 95, the sliding pin 21 is meshed with the clamping groove 19 to fixedly connect the plugging device 100 to the dredging device 101, and the sliding piece 8 is located at the end closest to the center of the array.

The working process of the distribution equipment comprises the following steps: the apparatus is placed into the sewerage pipe to be desilted and the support cylinder 70 is actuated to move the support piston rod 69 to the right, thereby moving the auxiliary bearing bracket 68 and the advancing bearing bracket 54 away from the centre of symmetry and causing the apparatus to be supported horizontally at the maximum radius of the pipe.

Plugging and dredging working process: starting the switching cylinder 35 to drive the switching piston rod 41 to move leftward, so as to drive the intermediate bevel gear 44 to move leftward to engage with the third bevel gear 30 and the second bevel gear 43, starting the motor 36 to drive the motor shaft 37 to rotate forward, so as to drive the third bevel gear 30 to rotate forward, so as to drive the first rotating shaft 45 and the spline shaft 18 to rotate synchronously, so as to drive the third gear 25 and the fourth gear 28 to rotate synchronously, so that the spline shaft 18 drives the blocking shaft 5 to rotate forward, so as to drive the blocking bevel gear 14 to rotate, so as to drive the second threaded rod 12 to rotate, so as to drive the sliding blade 8 to move away from the center of the array, when the rubber pad 7 abuts against the inner wall of the pipeline, the rubber pad deforms to cling to the inner wall of the pipeline, so as to prevent water leakage, and when the sliding blade 8 is restricted from moving, the, thereby causing the gear shaft 26 to stop rotating and the fourth gear 28 to rotate with the threaded rod 24, causing the fourth gear 28 to rotate with the threaded rod 24 and simultaneously moving leftward to move the wedge block 22 and move the slide pin 21 downward to disengage from the slot 19 and the fourth gear 28 to abut against the second switch 29 on the left to move the switching piston rod 41 to return to the right, causing the intermediate bevel gear 44 to engage with the first bevel gear 39 and the fourth bevel gear 31 and thereby rotate the worm shaft 32 and thereby rotate the worm 34 and thereby rotate the worm wheel 53 and thereby rotate the first pulley 60 and thereby rotate the second pulley 59 and thereby rotate the wheel 57 and further rotate the dredging device 101 to advance for dredging, and simultaneously activating the dredging mechanism 700 for dredging, after dredging is finished, the motor 36 is started to rotate reversely to drive the dredging equipment 101 to retreat to the first switch 51 and the right end wall of the plugging body 6, the switching piston rod 41 is triggered to move leftwards to drive the first rotating shaft 45 to rotate reversely to drive the plugging equipment 100 to reset, after the plugging equipment 100 is reset, a high water head flushes sludge downstream, the supporting cylinder 70 is started to drive the supporting piston rod 69 to move rightwards to take out the equipment after resetting, and the actions are repeated to finish the dredging process of plugging the sewage discharge pipeline.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. Sewage pipes shutoff desilting equipment, including shutoff equipment and desilting equipment, its characterized in that: the plugging device comprises a plugging body, a plugging cavity is arranged in the plugging body, a plugging shaft extending rightwards is arranged between the left end wall and the right end wall of the plugging cavity in a rotating manner, a right end wall of the plugging shaft is provided with a spline hole with a right opening, the plugging shaft can rotate to drive a plugging device positioned in the plugging body to plug a pipeline, a clamping rod extending rightwards is fixedly arranged on the right end wall of the plugging body, a clamping groove with a downward opening is arranged on the lower end wall of the clamping rod, the dredging device comprises a dredging machine body, a switching cavity is arranged in the dredging machine body, a sliding tooth cavity is arranged on the left side of the switching cavity in the dredging machine body, a gear cavity is arranged on the left side of the sliding tooth cavity in the dredging machine body, a sliding pin cavity is arranged on the left side of the gear cavity in the dredging machine body, and a spline shaft extending leftwards, a spline meshed with the spline hole is fixedly arranged at the left end of the spline shaft, a first gear is fixedly arranged in the gear cavity of the spline shaft, a first rotating shaft extending leftwards and rightwards is rotatably arranged between the switching cavity and the sliding tooth cavity, the first rotating shaft is connected with the spline shaft by a ratchet mechanism, a second gear is fixedly arranged in the sliding tooth cavity of the first rotating shaft, a gear shaft extending leftwards is rotatably arranged on the right end wall of the gear cavity, a third gear meshed with the first gear is fixedly arranged on the gear shaft, a first threaded hole communicated leftwards and rightwards is arranged in the gear shaft, a first threaded rod meshed with the first threaded hole and extending leftwards and rightwards is rotatably arranged in the first threaded hole, a fourth gear meshed with the second gear is fixedly arranged at the right end of the first threaded rod, a clamping rod cavity with a left opening is arranged above the sliding pin cavity, the dredging machine is characterized in that the clamping rod can freely slide in the clamping rod cavity, a sliding pin capable of being meshed with the clamping groove is arranged between the sliding pin cavity and the clamping rod cavity in a vertically sliding mode, a sliding pin spring is connected between the lower end wall of the sliding pin cavity and the lower end wall of the sliding pin cavity, a wedge block capable of being abutted to the threaded rod is fixedly arranged on the right end wall of the sliding pin, a worm gear cavity is arranged on the right side of the switching cavity in the dredging machine body, a worm shaft extending left and right is rotatably arranged between the worm gear cavity and the switching cavity, a worm is fixedly arranged in the worm gear cavity, the worm can drive advancing devices positioned on the front side and the rear side of the dredging machine body to drive the dredging machine body to move, supporting devices for controlling the expanding amount of the advancing devices are symmetrically arranged on the two sides of the dredging machine body to horizontally support the equipment at the maximum radius position of a pipeline, the switching chamber right-hand member wall is fixedly provided with the motor, the motor is connected with the motor shaft to power left, the motor shaft can drive through the switching device upwards transmission first pivot with the worm axle rotates in proper order, desilting machine body below is provided with desilting mechanism and washes the silt at the bottom of the pipeline clean, be provided with in the desilting machine body and be used for controlling the switching system of cylinder.

2. A sewage pipe plugging and dredging apparatus as claimed in claim 1, wherein: the plugging device comprises four sliding sheet cavities and five sliding sheet cavities, wherein the four sliding sheet cavities and the five sliding sheet cavities are arranged on the left side and the right side of an outer circumference array of the plugging cavity in a staggered mode, the sliding sheet cavities are provided with radially extending second threaded rods in a rotating mode between plugging bodies, a plugging shaft is located two plugging bevel gears which are fixedly arranged in the plugging cavity in a left-right mode, the second threaded rods are located in the plugging bodies, the screw bevel gears are fixedly arranged in the plugging bodies and meshed with the plugging bevel gears, sliding sheets are radially arranged in the sliding sheet cavities in a sliding mode, screw rod cavities are arranged in the sliding sheets and close to the end wall of the center of the array and are provided with second threaded holes meshed with the.

3. A sewage pipe plugging and dredging apparatus as claimed in claim 1, wherein: the advancing device comprises a fan-shaped advancing cavity which is formed by symmetrically communicating a worm gear cavity with a worm rod cavity in a front-back mode and is communicated with the worm gear cavity in a front-back mode, a worm gear shaft is arranged between the upper end wall and the lower end wall of the advancing cavity in a rotating mode, a worm gear meshed with the worm is fixedly arranged on the worm gear shaft, a first belt wheel is fixedly arranged on the worm gear shaft and positioned on the lower side of the worm gear, an advancing support frame is fixedly arranged on the worm gear shaft, the end, far away from the symmetrical center, of the advancing support frame is rotatably provided with a wheel shaft, wheels are fixedly arranged on the wheel shaft, a second belt wheel is arranged on the wheel shaft and positioned below the wheels, the second belt wheel is connected with the first belt wheel through a belt, an auxiliary support frame.

4. A sewage pipe plugging and dredging apparatus as claimed in claim 1, wherein: the strutting arrangement includes the cylinder supporting rack that the symmetry set up around the outer end wall left side of desilting fuselage, it is provided with the support cylinder to slide around on the cylinder supporting rack, the support cylinder has the support piston rod to power connection right, the support piston rod right-hand member fixed be provided with supplementary supporting rack articulated support link, the support link right-hand member with the supporting rack that advances is articulated.

5. A sewage pipe plugging and dredging apparatus as claimed in claim 1, wherein: the switching device comprises a switching cylinder fixedly arranged on the right end wall of the switching cavity, a switching piston rod is arranged on the switching cylinder in a left power mode, a middle shaft is arranged at the left end of the switching piston rod in a rotating mode, a middle bevel gear is fixedly arranged at the left end of the middle shaft, a first bevel gear capable of being meshed with the middle bevel gear is fixedly arranged on a motor shaft, a second bevel gear capable of being meshed with the middle bevel gear is fixedly arranged at the left end of the motor shaft, a third bevel gear capable of being meshed with the middle bevel gear is fixedly arranged at the right end of the first shaft, and a fourth bevel gear capable of being meshed with the middle bevel gear is fixedly arranged.

6. A sewage pipe plugging and dredging apparatus as claimed in claim 1, wherein: the dredging mechanism comprises a dredging rod which is fixedly arranged below the dredging machine body and extends downwards, a water hose is fixedly arranged at the lower end of the dredging rod, a filter screen is communicated with the other end of the water hose, and the upper end of the water hose is connected with a water pump and then is connected to a water spray head fixed on the right end wall of the dredging rod.

7. A sewage pipe plugging and dredging apparatus as claimed in claim 1, wherein: the switch system comprises a first switch which is positioned on the left end wall of the dredging machine body and can be abutted against the right end wall of the blocking body, and second switches which can be abutted against the fourth gear are symmetrically arranged on the left end wall and the right end wall of the sliding tooth cavity.