A desilting mechanism for hard and soft siltation in pipelines

Abstract

The invention relates to the technical field of silt clearing equipment, and discloses a silt clearing mechanism for hard and soft silt blockages in pipelines, comprising a drill spindle, wherein the drill spindle is connected to one end of a double-head synchronous pulley through a transmission device I, and the drill spindle is also provided with a wheel-shaped diameter-changing device whose diameter can be increased or decreased, and the wheel-shaped diameter-changing device is used to drive a brush, and the wheel-shaped diameter-changing device is connected to the other end of the double-head synchronous pulley through a transmission device II, and the transmission device II is sleeved on the wheel-shaped diameter-changing device and the double-head synchronous pulley; when the drill spindle encounters relatively hard garbage, the speed of the drill spindle is slowed down, and the wheel-shaped diameter-changing device can reduce the diameter, so that in the same time, the number of revolutions of the wheel-shaped diameter-changing device is greater than the number of revolutions of the double-head synchronous pulley, thereby ensuring that the frequency of rotation of the brush will not be reduced; by using concentrated bacterial liquid in combination with the drill spindle, both hard garbage and soft garbage can be cleaned.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline desilting equipment, and in particular to a desilting mechanism for removing hard and soft siltation in a pipeline. Background Art

[0002] The urban underground pipeline system bears important responsibilities for flood control, drainage and sewage discharge in the entire urban life and production. In recent years, the frequent rainstorms in major provinces and cities have also been a huge test for the underground pipeline projects in the municipal engineering construction in various cities. Usually, in the construction of public infrastructure, in order to facilitate the discharge of rainwater and sewage, it is completed by a complex drainage pipeline system laid underground. During long-term use, foreign objects will clog the underground drainage pipelines.

[0003] The patent with application number CN201921494966.X discloses a pipeline dredging robot with a replaceable dredging head, which connects the bristles 21 coaxially with the drill bit. When the drill bit drills through the blocked foreign objects, the bristles 21 clean the silt attached to the inner wall of the pipe.

[0004] However, the following problems exist in the actual use of the device. Since there are gravel and relatively hard solid garbage (such as decoration garbage) in the drainage pipe, when the drill bit drills these relatively hard garbage, in order to prevent the drill bit from being damaged, the drill bit speed will be reduced and the drilling will be performed slowly. After the drill bit reduces the speed, the bristles 21 will also reduce the speed accordingly. However, the low-speed bristles 21 cannot effectively clean the inner wall of the drainage pipe, causing the dirt to continue to adhere to the inner wall of the pipe. In the long run, the dirt will continue to thicken, corrode the pipe, and affect the drainage of the pipe. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a dredging mechanism for removing hard and soft blockages in a pipeline.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A desilting mechanism for hard and soft siltation in a pipeline, comprising a drill spindle, the drill spindle being connected to one end of a double-headed synchronous pulley through a transmission device I, the drill spindle being also provided with a wheel-shaped diameter reducing device whose diameter can be increased or decreased, the wheel-shaped diameter reducing device being used to drive a brush, the wheel-shaped diameter reducing device being connected to the other end of the double-headed synchronous pulley through a transmission device II, and the transmission device II being sleeved on the wheel-shaped diameter reducing device and the double-headed synchronous pulley;

[0008] It also includes an adjusting device meshed with the transmission device II. When the diameter of the wheel-shaped diameter-changing device changes, the adjusting device moves back and forth along the direction of the wheel-shaped diameter-changing device, or the adjusting device moves back and forth along the direction of the double-head synchronous pulley.

[0009] The wheel-shaped diameter-changing device comprises a plurality of telescopic electric cylinders and pinions, a bearing seat is fixedly mounted on the output end of the telescopic electric cylinder, a rotating shaft is coaxially connected to the pinion, and the rotating shaft is rotatably connected to the bearing seat;

[0010] The telescopic electric cylinders are evenly distributed on the circumferential surface of one end of the double-headed hollow rotating shaft. The double-headed hollow rotating shaft is coaxially connected with the main shaft protection shell through a turntable bearing. The drill main shaft passes through the main shaft protection shell and is connected with a drill.

[0011] The transmission device II is a toothed belt, which is meshed with a pinion and a double-head synchronous pulley.

[0012] The adjusting device is an adjusting gear, which is rotatably connected to one end of the carrier plate, and the other end of the carrier plate is fixedly mounted on the linear slide rail.

[0013] The other end of the double-headed hollow rotating shaft is coaxially connected with a rotating disk, on which a brush is installed, and a brush zoom mechanism is also installed between the brush and the rotating disk.

[0014] A rotating frame is arranged on the rotating arm, and the brush comprises a brush barrel, a rotating shaft, and bristles. The brush barrel is movably connected to the rotating frame via rotating shafts installed at both ends. A liquid storage sponge for storing concentrated bacterial liquid is arranged in the brush barrel, and one end of the bristles covers the surface of the brush barrel, and the other end is inserted into the liquid storage sponge.

[0015] The brush zoom mechanism comprises rotating arms evenly distributed on the circumference of the rotating disk, the rotating arms have an arc-shaped cross section, one end of the rotating arms is connected to the brush, and the other end is rotatably connected to the rotating disk through a bearing;

[0016] The bearing is also provided with a torsion spring, one end of which abuts against the inner side of the rotating arm, and the other end of which abuts against the rotating disk.

[0017] The rotating arm is provided with a wire pulling hole, one end of the wire pulling hole passes through the rotating arm, and a plurality of stop beads are fixedly installed on the wire pulling hole. The diameter of the stop beads is larger than the diameter of the wire pulling hole, and the stop beads respectively abut against the inner side and outer side of the rotating arm.

[0018] The other end of the pulling wire is wound on an electric wire taking-up drum, and the electric wire taking-up drum is installed on the circumferential surface of the rotating disk.

[0019] The utility model also comprises a machine body, wherein the top and both sides of the machine body are both provided with adjustable self-propelled mechanisms.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the equipment of the present invention, the drill spindle is connected to one end of the double-headed synchronous pulley through the transmission device I, and the other end of the double-headed synchronous pulley is connected to the wheel-shaped diameter-changing device through the transmission device II, and the wheel-shaped diameter-changing device is used to drive the brush to rotate; when the drill spindle encounters relatively hard garbage, the rotation speed of the drill spindle is slowed down, and the wheel-shaped diameter-changing device can reduce the diameter. At the same time, the adjustment device moves in a direction away from the wheel-shaped diameter-changing device or away from the double-headed synchronous pulley, which plays a role in tightening the transmission device II. Since the wheel-shaped diameter-changing device reduces the diameter, the number of revolutions of the wheel-shaped diameter-changing device is greater than the number of revolutions of the double-headed synchronous pulley in the same time, which ensures that the frequency of rotation of the brush will not decrease, and the inner wall of the drainage pipe can be effectively cleaned.

[0022] 2. In the device of the present invention, the brush zoom mechanism can drive the brush to move toward or away from the rotating disk by retracting and releasing the pull wire and the stop bead, so that the length of the brush can be suitable for pipes of different diameters.

[0023] 3. In the device of the present invention, the concentrated bacterial liquid is used in conjunction with the drill spindle, which can not only clean up hard garbage, but also clean up soft garbage. Moreover, the concentrated bacterial liquid can also flow into the entire underground drainage network with the water flow to desilt the entire underground drainage network. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The schematic diagram of the structure of a desilting mechanism for removing hard and soft siltation in a pipeline is shown in FIG1.

[0025] Figure 2 It is a structural schematic diagram II of a dredging mechanism for hard and soft blockages in pipelines.

[0026] Figure 3 Schematic diagram of the structure of the brush.

[0027] Figure 4 It is a structural schematic diagram I of a double-head synchronous pulley and a wheel-shaped diameter-changing device.

[0028] Figure 5 It is a structural schematic diagram of the wheel-shaped diameter-changing device.

[0029] Figure 6 It is the structural schematic diagram II of the double-head synchronous pulley and the wheel-shaped diameter reducing device.

[0030] In the accompanying drawings: drill spindle 1, double-headed synchronous pulley 2, wheel-shaped diameter reducing device 3, telescopic electric cylinder 31, pinion 32, bearing seat 33, rotating shaft 34, brush 4, double-headed hollow rotating shaft 5, spindle protection shell 6, toothed belt 7, adjusting gear 8, carrier plate 9, rotating disk 10, rotating arm 11, electric wire take-up reel 12, machine body 13, transmission gear 14, transmission belt 15, self-propelled crawler vehicle 16, adjusting arm 17, driving electric cylinder 18, rotating frame 19, brush cylinder 20, bristles 21, liquid storage sponge 22. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] A desilting mechanism for hard and soft siltation in a pipeline, comprising a drill spindle 1, the drill spindle 1 being connected to one end of a double-headed synchronous pulley 2 through a transmission device I, the transmission device I comprising a transmission gear 14, the transmission gear 14 being coaxial with the drill spindle 1 and fixedly sleeved on the drill spindle 1, the transmission gear 14 being connected to one end of the double-headed synchronous pulley 2 through a transmission belt 15; the drill spindle 1 is also sleeved with a wheel-shaped diameter reducing device 3 whose diameter can be increased or decreased, the wheel-shaped diameter reducing device 3 being used to drive a brush 4, the wheel-shaped diameter reducing device 3 being connected to the other end of the double-headed synchronous pulley 2 through a transmission device II, the transmission device II being sleeved on the wheel-shaped diameter reducing device 3 and connected to the double-headed synchronous pulley 2, the transmission device II being a toothed belt 7;

[0035] The transmission method of this design is that the drill spindle 1 drives the transmission gear 14, the transmission gear 14 drives the connecting head at one end of the double-headed synchronous pulley 2 through the transmission belt 15, the connecting head at the other end of the double-headed synchronous pulley 2 drives the wheel-shaped diameter reducing device 3 through the toothed belt 7, and the wheel-shaped diameter reducing device 3 drives the brush 4.

[0036] When the diameter of the wheel-shaped diameter-changing device 3 increases or decreases, it is necessary to synchronously adjust the length of the toothed belt 7 wrapped around the wheel-shaped diameter-changing device 3, so an adjustment device meshing with the toothed belt 7 is also designed;

[0037] When the diameter of the wheel-shaped diameter-changing device 3 changes, the adjusting device moves back and forth in the direction of the wheel-shaped diameter-changing device 3, or the adjusting device moves back and forth in the direction of the double-head synchronous pulley 2;

[0038] It is possible to increase the length of the toothed belt 7 looped around the wheel surface of the wheel-shaped diameter reducing device 3 , or to reduce the length of the toothed belt 7 looped around the wheel surface of the wheel-shaped diameter reducing device 3 .

[0039] Specifically, the wheel-shaped diameter-changing device 3 includes a plurality of telescopic electric cylinders 31 and pinions 32. A bearing seat 33 is fixedly mounted on the output end of the telescopic electric cylinder 31. The pinion 32 is coaxially connected with a rotating shaft 34. The rotating shaft 34 is rotatably connected to the bearing seat 33. In this embodiment, four groups of wheel-shaped diameter-changing devices 3 are designed, and each group of wheel-shaped diameter-changing devices 3 uses a telescopic electric cylinder 31 that can be synchronously extended and retracted.

[0040] Specifically, the telescopic electric cylinder 31 is evenly distributed on the circumferential surface of one end of the double-headed hollow rotating shaft 5, the double-headed hollow rotating shaft 5 is coaxially connected to the spindle protection shell 6 through a turntable bearing, the drill spindle 1 passes through the spindle protection shell 6 and is connected to the drill, and the toothed belt 7 is meshed with the pinion 32 and the double-headed synchronous pulley 2;

[0041] Specifically, a plurality of fixed support rods are welded to the outer wall of the spindle protection shell 6, and the other ends of the fixed support rods are welded to the body 13 to achieve stability of the spindle protection shell 6;

[0042] Specifically, the double-headed hollow shaft 5 is fixedly connected to the outer ring of the turntable bearing, and the main shaft protection shell 6 is fixedly connected to the inner ring of the turntable bearing;

[0043] When the drill spindle 1 is drilling harder garbage, in order to prevent the drill bit from being damaged, the drill bit's rotation speed will be reduced and the drilling will be performed slowly. Therefore, when the rotation speed of the drill spindle 1 decreases, the output ends of the telescopic electric cylinders 31 of the four sets of wheel-shaped reducers 3 will shrink synchronously, driving the pinion 32 to move in the direction close to the double-headed hollow shaft 5. Since the pinion 32 engages the toothed belt 7, the diameter of the wheel-shaped reducer 3 is reduced. Then, in the same time, the number of revolutions of the wheel-shaped reducer 3 is greater than the number of revolutions of the double-headed synchronous pulley 2, which ensures that the frequency of the brush rotation will not decrease, and the inner wall of the drainage pipe can be effectively cleaned.

[0044] Specifically, when the pinion 32 moves in the direction close to the double-ended hollow shaft 5, since the wheel-shaped diameter reducing device 3 becomes smaller, the toothed belt 7 needs to be tightened to prevent the toothed belt 7 from falling off the pinion 32. Therefore, at the same time, the adjustment device needs to move in the direction away from the wheel-shaped diameter reducing device 3 or away from the double-ended synchronous pulley 2, so as to ensure the tension of the toothed belt 7, the double-ended synchronous pulley 2, and the wheel-shaped diameter reducing device 3.

[0045] Specifically, the adjusting device is an adjusting gear 8, which is rotatably connected to one end of a carrier plate 9, and the other end of the carrier plate 9 is fixedly mounted on a moving platform of a linear slide rail. The linear slide rail is a prior art, which utilizes a motor to drive a ball screw to rotate. When the ball screw rotates, it drives the screw nut to move along the screw, and the moving platform is fixedly connected to the screw nut.

[0046] Specifically, the other end of the double-headed hollow shaft 5 is coaxially connected to a rotating disk 10 , and a brush 4 is installed on the rotating disk 10 .

[0047] Furthermore, considering that the diameters of the sewer pipes are not exactly the same, the brush 4 needs to be extended or shortened for different pipe diameters to achieve the fit between the brush 4 and the inner wall of the sewer pipe.

[0048] A brush zoom mechanism is also installed between the brush 4 and the rotating disk 10;

[0049] Specifically, the brush zoom mechanism includes rotating arms 11 evenly distributed on the circumference of the rotating disk 10, and the cross section of the rotating arms 11 is an arc-shaped structure. This design allows the rotating arms 11 to fit on the circumference of the rotating disk 10 when not in use, thereby reducing the space occupied by the device and facilitating the device to enter a narrow sewer;

[0050] One end of the rotating arm 11 is connected to the brush 4, and the other end is rotatably connected to the rotating disk 10 through a bearing;

[0051] Specifically, the bearing is also provided with a torsion spring, one end of which contacts the inner side of the rotating arm 11, and the other end of which contacts the rotating disk 10; this design allows the brush 4 to elastically contact the inner wall of the pipe, thereby preventing the brush 4 from rigidly contacting the inner wall of the pipe when the brush 4 is too long, thereby causing damage to the brush 4 or the rotating arm 11;

[0052] Specifically, the rotating arm 11 is provided with a wire hole, one end of the wire passes through the rotating arm 11 through the wire hole, and a plurality of stop beads are fixedly mounted on the wire, the diameter of the stop beads is larger than the diameter of the wire hole, and the stop beads respectively abut against the inner side and the outer side of the rotating arm 11;

[0053] When the pull wire is not tightened, the rotating arm 11 is affected by the torsion spring and will not fit onto the rotating disk 10. The distance from the brush 4 on the top of the rotating arm 11 to the rotating disk 10 is the cleaning range of the brush 4. When the pull wire is tightened, the rotating arm 11 is affected by the blocking beads, and the inner side of the rotating arm 11 moves toward the rotating disk 10. During the movement of the rotating arm 11, the pull wire between the adjacent rotating arms 11 is pulled. Similarly, the adjacent rotating arms 11 are also affected by the blocking beads and move toward the rotating disk 10. This reduces the cleaning range of the brush 4 and allows cleaning of relatively narrow pipes.

[0054] Specifically, the other end of the pulling wire is wound on an electric wire take-up drum 12, and the electric wire take-up drum 12 is installed on the circumferential surface of the rotating disk 10; when the rotating arm 11 needs to be retracted or released, the electric wire take-up drum 12 only needs to rotate forward or reverse.

[0055] Furthermore, after the pipeline is cleaned, there is still a part of the silt garbage scraped off by the brush 4 and the debris garbage broken by the drill spindle 1 in the pipeline. These garbage are in the pipeline and are not easy to be transported to the outside of the pipeline. Moreover, after cleaning by this equipment, the inner wall of the pipeline will gradually adhere to new silt garbage. In order to facilitate the removal of silt garbage and debris garbage broken by the drill spindle 1 in the pipeline, in this embodiment, a concentrated bacterial liquid for pipe network desilting treatment is introduced;

[0056] After the bacterial liquid enters the pipeline network, it will be activated and grow rapidly, promoting the development of microbial flora in the pipeline network. After the bacterial liquid combines with the microorganisms in the pipeline, a biofilm is formed on the surface. According to the transmission of oxygen, it is divided into: aerobic zone, anaerobic zone, and anaerobic zone; in the aerobic zone, oxygen is used as an electron acceptor to decompose organic pollutants. In the micro-aerobic zone, nitrate is used as an electron acceptor to convert nitrate into nitrogen gas to achieve denitrification. In the anaerobic zone, carbohydrates are used as electron acceptors to decompose organic pollutants through fermentation reactions. The concentrated bacterial liquid uses Yingpai concentrated bacterial liquid.

[0057] Please refer to Figure 3 Specifically, a rotating frame is provided on the rotating arm 11, and the brush 4 includes a brush barrel 20, a rotating shaft, and bristles 21. The brush barrel 20 is movably connected to the rotating frame through rotating shafts installed at both ends. A liquid storage sponge 22 for storing concentrated bacterial liquid is provided in the brush barrel 20. One end of the bristles 21 covers the surface of the brush barrel 20, and the other end is inserted into the liquid storage sponge 22. When cleaning the garbage attached to the inner wall of the pipe, the liquid injection port on the brush barrel 20 is opened, and the concentrated bacterial liquid is injected into the liquid storage sponge 22. When the bristles 21 are cleaning the garbage on the inner wall of the pipe, due to the rotation The arm 11 continuously drives the brush barrel 20 to rotate. Under the action of centrifugal force, the concentrated bacterial liquid in the brush barrel 20 enters the bristles 21 from the liquid storage sponge 22. Since the bristles 21 rotate along the inner wall of the entire annular pipe, the bacterial liquid can also be applied to the annular inner wall of the entire pipe to clean up the garbage remaining on the inner wall of the pipe. When the equipment completes the drilling, the equipment is recovered from the pipe, and then the pipe drain port is opened to continue draining. The sewage in the pipe brings the concentrated bacterial liquid to the entire underground drainage pipe network along the underground pipe network, and the clogging garbage of the entire underground drainage pipe network is biologically desilted.

[0058] The advantage of this design is that by using concentrated bacterial liquid in conjunction with the drill spindle 1, both hard and soft garbage can be cleaned, and the concentrated bacterial liquid can also flow into the entire underground drainage network with the water flow to desilt the entire underground drainage network.

[0059] Furthermore, considering that after adjusting the cleaning range of the brush 4, it is also necessary to adjust the distance from the rotating disk 10 to the bottom of the pipe to provide a corresponding rotation space for the rotation of the rotating arm 11;

[0060] Therefore, adjustable self-propelled mechanisms are installed on the top and both sides of the body 13;

[0061] Specifically, the adjustable self-propelled mechanism includes a self-propelled crawler 16 and an adjusting arm 17, one end of the adjusting arm 17 is rotatably connected to the machine body 13, and the other end is rotatably connected to the self-propelled crawler 16, and the side of the adjusting arm 17 facing the machine body 13 is rotatably connected to a driving device;

[0062] Specifically, the driving device is a driving electric cylinder 18, the mounting end of the driving electric cylinder 18 is rotatably mounted on a rotating seat, the output end of the driving electric cylinder 18 is fixedly connected to a rotating shaft, both ends of the rotating shaft are rotatably connected to a rotating frame 19, and the other end of the rotating frame 19 is fixedly connected to the adjusting arm 17;

[0063] Specifically, the machine body 13 and the self-propelled crawler vehicle 16 are both provided with a plurality of rotating seats, the adjusting arm 17 is fixedly connected to the rotating arm shaft, the driving electric cylinder 18 is fixedly connected to the electric cylinder shaft, and the rotating arm shaft, the electric cylinder shaft and the rotating seat are rotatably connected;

[0064] In this embodiment, the driving electric cylinders 18 used in the three adjustable self-propelled mechanisms are all synchronous electric cylinders. When the driving electric cylinders 18 extend, they push the adjusting arms 17, and the adjusting arms 17 drive the self-propelled crawler vehicles 16 to move away from the machine body 13 until the three self-propelled crawler vehicles 16 contact the inner wall of the pipeline, so as to cope with pipelines of different diameters.

[0065] Specifically, the machine body 13 can also be made into a cylindrical structure, and the three adjustable self-propelled mechanisms are evenly distributed on the circumferential surface of the machine body 13. Even if the machine body 13 turns over in the pipeline, it will not affect the movement and use of the device.

[0066] In addition, the three self-propelled tracked vehicles 16 are three independent driving mechanisms. When one of the self-propelled tracked vehicles 16 fails, the other two tracked vehicles 16 can continue to drive the machine body 13 forward.

[0067] Working principle:

[0068] After entering the pipeline, the driving electric cylinder 18 is started, the output end of the driving electric cylinder 18 extends, pushing the adjustment arm 17, and the adjustment arm 17 drives the self-propelled crawler 16 to move in a direction away from the machine body 13 until the three self-propelled crawlers 16 contact the inner wall of the pipeline, and the driving electric cylinder 18 stops extending;

[0069] At this time, the electric wire take-up drum 12 is started, and the wire is released during the rotation process. The rotating arm 11 is acted upon by the torsion spring and moves in a direction away from the rotating disk 10 until the brush 4 on the top of the rotating arm 11 contacts the inner wall of the pipe, and the electric wire take-up drum 12 stops rotating.

[0070] At this time, the self-propelled crawler 16 starts, driving the body 13 to move along the direction of the blockage in the pipeline. After reaching the blockage point, the drill spindle 1 is started to drill the blockage point. When the drill spindle 1 drills the harder garbage, in order to prevent the drill from being damaged, the motor connected to the drill spindle 1 reduces the speed of the drill and drills slowly.

[0071] When the speed of the drill spindle 1 decreases, the output ends of the telescopic electric cylinders 31 of the four groups of wheel-shaped diameter-changing devices 3 shrink synchronously, driving the pinion 32 to move in the direction close to the double-headed hollow shaft 5, so as to reduce the diameter of the wheel-shaped diameter-changing device 3; at the same time, the adjusting device moves in the direction away from the wheel-shaped diameter-changing device 3 or away from the double-headed synchronous pulley 2, so as to ensure the tension of the toothed belt 7, the double-headed synchronous pulley 2 and the wheel-shaped diameter-changing device 3; within the same time, the number of revolutions of the wheel-shaped diameter-changing device 3 is greater than the number of revolutions of the double-headed synchronous pulley 2, which ensures that the frequency of the brush rotation will not decrease, and the inner wall of the drainage pipe can be effectively cleaned;

[0072] When the bristles 21 are cleaning the garbage on the inner wall of the pipe, the rotating arm 11 continuously drives the brush barrel 20 to rotate, and the concentrated bacterial liquid in the brush barrel 20 enters the bristles 21 from the liquid storage sponge 22 under the action of centrifugal force. Since the bristles 21 rotate along the inner wall of the entire annular pipe, the bacterial liquid can also be applied to the annular inner wall of the entire pipe to clean up the garbage remaining on the inner wall of the pipe. When the equipment completes the drilling, the equipment is recovered from the pipe, and then the pipe drain port is opened to continue draining. The sewage in the pipe brings the concentrated bacterial liquid to the entire underground drainage pipe network along the underground pipe network, and the clogged garbage in the entire underground drainage pipe network is biologically desilted.

[0073] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by the present invention should belong to the patent scope covered by the present invention.

Claims

1. A desilting mechanism for hard and soft siltation in a pipeline, characterized in that: The drill bit main shaft (1) is connected to one end of a double-headed synchronous belt pulley (2) via a transmission device I, and the drill bit main shaft (1) is also provided with a wheel-shaped diameter-changing device (3) whose diameter can be increased or decreased, and the wheel-shaped diameter-changing device (3) is used to drive a brush (4), and the wheel-shaped diameter-changing device (3) is connected to the other end of the double-headed synchronous belt pulley (2) via a transmission device II, and the transmission device II is sleeved on the wheel-shaped diameter-changing device (3) and the double-headed synchronous belt pulley (2); It also includes an adjusting device meshing with the transmission device II, and when the diameter of the wheel-shaped diameter-changing device (3) changes, the adjusting device moves back and forth in the direction of the wheel-shaped diameter-changing device (3), or the adjusting device moves back and forth in the direction of the double-head synchronous pulley (2); The wheel-shaped diameter-changing device (3) comprises a plurality of telescopic electric cylinders (31) and pinions (32); a bearing seat (33) is fixedly mounted on the output end of the telescopic electric cylinder (31); a rotating shaft (34) is coaxially connected to the pinion (32); and the rotating shaft (34) is rotatably connected to the bearing seat (33); The telescopic electric cylinders (31) are evenly distributed on the circumferential surface of one end of the double-headed hollow rotating shaft (5); the double-headed hollow rotating shaft (5) is coaxially connected to the spindle protection shell (6) via a turntable bearing; the drill spindle (1) passes through the spindle protection shell (6) and is connected to the drill bit; The transmission device II is a toothed belt (7), and the toothed belt (7) is meshed with a pinion (32) and a double-head synchronous pulley (2); The other end of the double-ended hollow rotating shaft (5) is coaxially connected to a rotating disk (10), a brush (4) is mounted on the rotating disk (10), and a brush zoom mechanism is also mounted between the brush (4) and the rotating disk (10); The brush zoom mechanism comprises rotating arms (11) evenly distributed on the circumferential surface of the rotating disk (10); the cross section of the rotating arms (11) is an arc-shaped structure.

2. A desilting mechanism for hard and soft siltation in a pipeline according to claim 1, characterized in that: The adjusting device is an adjusting gear (8), the adjusting gear (8) is rotatably connected to one end of a carrier plate (9), and the other end of the carrier plate (9) is fixedly mounted on a linear slide rail.

3. A desilting mechanism for hard and soft siltation in a pipeline according to claim 2, characterized in that: The rotating arm (11) is provided with a rotating frame, and the brush (4) comprises a brush barrel (20), a rotating shaft, and bristles (21). The brush barrel (20) is movably connected to the rotating frame via the rotating shaft. A liquid storage sponge (22) for storing concentrated bacterial liquid is provided in the brush barrel (20), and one end of the bristles (21) covers the surface of the brush barrel (20), and the other end is inserted into the liquid storage sponge (22).

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