An upcomer cleaning device

Abstract

The utility model provides a kind of ascending pipe cleaning device, belong to coke oven equipment technical field, technical scheme is, a kind of ascending pipe cleaning device, including connecting rod, the one end of connecting rod is fixed with the box of inside hollow, connecting shaft and driving mechanism are equipped in box, the output end of driving mechanism is connected with connecting shaft transmission, driving mechanism can drive connecting shaft rotation, the one end of connecting shaft passes through the lateral wall of box and is coaxially fixed connection with cleaning wheel, the outer periphery of cleaning wheel is uniformly spaced and is provided with tine along its circumferential direction.The utility model has the beneficial effect that, rotating is driven by driving mechanism and cleaning wheel, the tine on cleaning wheel can rotate cutting cleaning to the hard carbon deposit of ascending pipe inner wall, effectively cope with the problem that stubborn carbon deposit is difficult to remove, so the device can efficiently remove ascending pipe inner wall carbon deposit.

Description

Technical Field

[0001] This utility model belongs to the technical field of coke oven equipment, specifically relating to a riser pipe cleaning device. Background Technology

[0002] During the coking process in a coke oven, a large amount of raw coal gas is generated. This raw coal gas needs to enter the gas collecting pipe through the riser pipe, and finally be discharged from the carbonization chamber. The riser pipe not only plays a crucial role in discharging coke oven gas, but also maintains stable pressure in the carbonization chamber, which is essential for ensuring normal coke oven production. However, during the daily operation of the coke oven, impurities such as ash, carbon deposits, and tar generated during the coking process continuously adhere to the inner wall of the riser pipe. Over time, this accumulation leads to a reduction in the diameter of the riser pipe, obstructing the flow of coal gas and preventing it from being smoothly introduced into the gas collecting pipe.

[0003] As shown in the patent publication number CN103820133B, the core of the existing cleaning device includes a smudge cleaning rod and a rotating cleaning brush. The lower end of the smudge cleaning rod is equipped with a smudge cleaning head, which is made of steel bars and has a ring structure. It needs to be inserted into the tube for operation. The rotating cleaning brush is equipped with a cleaning brush head with a cylindrical structure. The bristles of the brush head are mostly made of brown bristles or steel wire. The cleaning brush is also equipped with a hand-press, hand-crank, or foot-pedal drive device, which drives the brush head to rotate to clean the dirt inside the tube.

[0004] However, the circular steel bar cleaning head of the ash removal rod in this device has limited structural strength and scraping ability, and can only remove loose ash from the inner surface of the pipe; for stubborn and hard carbon deposits that have formed on the inner wall of the riser pipe over a long period of time, the cleaning head cannot effectively cut into and peel them off, ultimately resulting in incomplete cleaning. Utility Model Content

[0005] This invention addresses the problem that existing devices are unable to effectively remove carbon deposits from the inner wall of riser pipes by providing a riser pipe cleaning device that can effectively remove carbon deposits from the inner wall of riser pipes.

[0006] To solve the above problems, the technical solution adopted by this utility model is a riser pipe cleaning device, including a connecting rod, one end of which is fixed to a hollow box, a connecting shaft and a driving mechanism are provided inside the box, the output end of the driving mechanism is connected to the connecting shaft for transmission, the driving mechanism can drive the connecting shaft to rotate, one end of the connecting shaft passes through the side wall of the box and is coaxially fixedly connected to the cleaning wheel, and the outer circumferential surface of the cleaning wheel is provided with sharp teeth at even intervals along its circumference.

[0007] In this technical solution, one end of the connecting rod is fixed to a hollow housing. The housing contains a connecting shaft and a drive mechanism. The output end of the drive mechanism is connected to the connecting shaft to drive its rotation. One end of the connecting shaft passes through the side wall of the housing and is coaxially fixed to a cleaning wheel. The outer circumferential surface of the cleaning wheel is evenly spaced with sharp teeth. In use, after the device is inserted into the riser pipe, the drive mechanism rotates the cleaning wheel. The sharp teeth on the cleaning wheel can rotate and cut away the hard carbon deposits adhering to the inner wall of the riser pipe, effectively addressing the problem of stubborn carbon deposits being difficult to remove. Therefore, this device can efficiently remove carbon deposits from the inner wall of the riser pipe.

[0008] Furthermore, the drive mechanism includes a meshing worm gear and a worm. A drive shaft is coaxially fixedly mounted on the worm gear, with one end rotatably connected to the inner wall of the housing and the other end fixedly connected to the end of the connecting shaft located inside the housing. One end of the worm is rotatably connected to the inner wall of the housing, and the other end is fixedly connected to the output shaft of the drive motor. The housing of the drive motor is fixedly connected to the housing. The worm gear drive features good stability and the ability to reduce speed and increase torque, providing sufficient torque to the cleaning wheel to ensure that the sharp teeth can effectively cut the stubborn carbon deposits on the inner wall of the riser pipe. At the same time, the fixed connection between the drive motor and the housing ensures the overall installation stability of the drive mechanism, preventing loose parts during cleaning that could cause unstable rotation speed of the cleaning wheel and affect the cleaning effect.

[0009] Furthermore, the other end of the connecting rod is fixedly connected to one end of the extension tube, and the extension tube and the connecting rod are coaxially arranged. The extension tube can extend the overall length of the device, allowing the device to adapt to riser tubes of different lengths, eliminating the need for separate device design for different riser tubes, thus improving the device's versatility. Moreover, the coaxial arrangement of the extension tube and the connecting rod ensures that the cleaning wheel always rotates along the axis inside the riser tube, avoiding uneven contact between the cleaning wheel and the inner wall of the riser tube due to axis misalignment, which could result in incomplete cleaning in certain areas.

[0010] Furthermore, a connecting block is fixed to the other end of the extension tube, and a lifting mechanism is provided on the connecting block. The lifting mechanism can drive the connecting block to move axially along the connecting rod. When the lifting mechanism drives the connecting block to move axially, it can drive the extension tube, connecting rod and cleaning wheel to move synchronously, so that the cleaning wheel can cover different height areas of the inner wall of the riser tube, effectively eliminating cleaning blind spots and ensuring comprehensive cleaning of the inner wall of the riser tube. There is no need for operators to manually adjust the height of the device, simplifying the operation process.

[0011] Furthermore, the lifting mechanism is an electric telescopic rod. The telescopic direction of the electric telescopic rod is the same as the axial direction of the connecting rod. The telescopic end of the electric telescopic rod is fixedly connected to the connecting block, and the cylinder of the electric telescopic rod is fixedly connected to the base. The fact that the telescopic direction of the electric telescopic rod is consistent with the axial direction of the connecting rod allows for precise control of the axial movement distance of the cleaning wheel, avoiding excessive or insufficient movement. Moreover, the electric drive method is more labor-saving than manual adjustment, reducing the operator's workload. Simultaneously, the fixed cylinder to the base and the fixed telescopic end to the connecting block ensure stability during the lifting process, preventing the cleaning wheel from wobbling during movement.

[0012] Furthermore, two handles are symmetrically arranged on the outer circumference of the base. The two symmetrically arranged handles make it easy for the operator to hold the device with both hands, allowing for better control of the device's balance and preventing it from shifting or tipping over during cleaning. This improves the safety and convenience of operation. At the same time, the operator can fine-tune the device's angle using the handles to ensure that the cleaning wheel always maintains a suitable contact state with the inner wall of the riser pipe, thus guaranteeing the cleaning effect.

[0013] Furthermore, a protective sleeve is fitted onto the outer circumference of the handle. The protective sleeve increases the friction between the hand and the handle, preventing the operator from slipping due to sweaty or oily hands, thus improving operational stability. At the same time, the protective sleeve cushions the pressure of the handle on the hand, reducing hand fatigue caused by prolonged gripping and improving the operator's comfort.

[0014] Furthermore, a positioning cylinder is fixed to the end face of the base near the connecting rod. The positioning cylinder is coaxially arranged with the connecting rod, and the end of the positioning cylinder near the connecting rod is open. The inner diameter of the positioning cylinder is the same as the outer diameter of the riser pipe. The matching inner diameter of the positioning cylinder with the outer diameter of the riser pipe allows for precise positioning when the device extends into the riser pipe, ensuring that the cleaning wheel and the riser pipe remain coaxial. This prevents the cleaning wheel from colliding with the inner wall of the riser pipe during rotation, thus avoiding damage to components. It also prevents localized carbon buildup from remaining due to axial misalignment, ensuring the stability and uniformity of the cleaning process.

[0015] As can be seen from the above technical solutions, the beneficial effects of this utility model are as follows: 1. It can efficiently remove stubborn carbon deposits. The cleaning wheel tip can rotate and cut hard carbon deposits. Combined with the speed reduction and torque increase function of worm gear transmission, it provides sufficient torque for cleaning and ensures that stubborn carbon deposits are effectively removed. 2. Highly adaptable and provides comprehensive cleaning. The extension tube can be adapted to riser tubes of different lengths, and the lifting mechanism can drive the cleaning wheels to cover different heights of the inner wall of the tube, eliminating blind spots in cleaning. 3. Convenient, stable and safe operation; the electric telescopic rod saves effort and precisely controls the movement of the cleaning wheels; the symmetrical handles with protective sleeves make them easy to hold and reduce fatigue; the positioning cylinder ensures that the device is coaxial with the riser tube, avoiding component collisions or cleaning deviations. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model; Figure 2 This is a schematic diagram of the internal structure of the box in a specific embodiment of this utility model; Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle.

[0018] In the diagram: 1. Connecting rod; 2. Housing; 3. Connecting shaft; 4. Drive mechanism; 41. Worm gear; 42. Worm; 43. Transmission shaft; 44. Drive motor; 5. Cleaning wheel; 51. Tooth; 6. Extension tube; 61. Connecting block; 7. Electric telescopic rod; 8. Base; 81. Handle; 82. Protective sleeve; 9. Positioning cylinder. Detailed Implementation

[0019] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0020] A riser pipe cleaning device, such as Figure 1 As shown, the device includes a connecting rod 1, a housing 2, a connecting shaft 3, a drive mechanism 4, a cleaning wheel 5, a lifting mechanism, and a base 8. The base 8 serves as the basic support component of the device, used to mount and fix the lifting mechanism and provide an operating grip structure. The lifting mechanism drives the device to move axially to cover different cleaning areas. The connecting rod 1 connects the extension tube 6 to the housing 2, transmitting axial movement. The housing 2 provides an enclosed installation space for the drive mechanism 4, the connecting shaft 3, and the drive motor 44. The drive mechanism 4 provides rotational power to the cleaning wheel 5. The connecting shaft 3 transmits the power from the drive mechanism 4 to the cleaning wheel 5. The cleaning wheel 5 cleans carbon deposits through its outer circumferential teeth 51.

[0021] like Figure 2As shown, specifically, the base 8 is a block-shaped rigid structure, and a lifting mechanism is fixedly connected to the side of the base 8 near the connecting rod 1 by bolts. In this embodiment, the lifting mechanism is specifically an electric telescopic rod 7. The telescopic direction of the electric telescopic rod 7 is consistent with the axial direction of the connecting rod 1. Its cylinder is fixed to the corresponding side of the base 8 by bolts, and the cylinder and the base 8 form a stable whole, ensuring that the electric telescopic rod 7 will not shift its position when it is working.

[0022] The telescopic end of the electric telescopic pole 7 faces away from the base 8 and is fixedly connected to the connecting block 61 by bolts. The connecting block 61 is a block structure, with one side rigidly connected to the telescopic end of the electric telescopic pole 7, and the other side fixed to the extension tube 6 by welding or flange connection. The extension tube 6 is a rigid tubular structure, and its axis is completely coincident with the telescopic direction of the electric telescopic pole 7. Driven by the connecting block 61, the extension tube 6 can move axially synchronously with the telescopic movement of the electric telescopic pole 7; the length of the extension tube 6 can be adjusted according to the specifications of the riser pipe to adapt to different cleaning needs.

[0023] The end of the extension tube 6 furthest from the connecting block 61 is fixedly connected to the connecting rod 1 by welding or bolting. The connecting rod 1 is a rigid rod structure, and its axis is coaxial with the axis of the extension tube 6 to ensure that there is no axial deviation when the extension tube 6 moves the connecting rod 1. The end of the connecting rod 1 furthest from the extension tube 6 is fixedly connected to the housing 2 by welding or bolting. The housing 2 is a hollow, closed shell made of high-strength metal, which can protect the internal components from external impurities and withstand vibrations during the cleaning process.

[0024] like Figure 3 As shown, the hollow cavity of the housing 2 houses a connecting shaft 3, a drive mechanism 4, and a drive motor 44. One end of the connecting shaft 3 is located inside the housing 2, and the other end passes through the side wall of the housing 2 away from the connecting rod 1 and extends to the outside of the housing 2. A sealed bearing is installed at the penetration point between the connecting shaft 3 and the side wall of the housing 2, ensuring that the connecting shaft 3 can rotate freely while preventing lubricating oil leakage or external impurities from entering the housing 2. The part of the connecting shaft 3 extending to the outside of the housing 2 is coaxially and fixedly connected to the cleaning wheel 5, and rigidly fixed by key connection or welding, ensuring that the cleaning wheel 5 rotates synchronously when the connecting shaft 3 rotates. The cleaning wheel 5 is a circular wheel, and its outer circumference is evenly spaced with sharp teeth 51. The sharp teeth 51 are made of wear-resistant alloy material, which can cut and peel off the carbon deposits on the inner wall of the riser pipe when rotating.

[0025] The drive mechanism 4 includes a worm gear 41 and a worm 42 that mesh with each other. The worm gear 41 is coaxially fixed to the drive shaft 43 by a key connection. The drive shaft 43 passes through the worm gear 41 along its axial direction, and the two form a rigid whole. One end of the drive shaft 43 is rotatably connected to the inner wall of the housing 2 by a bearing, and the other end is fixedly connected to the end of the connecting shaft 3 located inside the housing 2 by a coupling, so that the rotational motion of the drive shaft 43 can be transmitted to the connecting shaft 3 through the coupling.

[0026] One end of the worm 42, which meshes with the worm gear 41, is rotatably connected to the inner wall of the housing 2 via a bearing, while the other end is fixedly connected to the output shaft of the drive motor 44 via a coupling. The drive motor 44 is located entirely within the hollow cavity of the housing 2, and its housing is fixed to the inner wall of the housing 2 with bolts to ensure overall stability during operation. When the drive motor 44 starts, the output shaft drives the worm 42 to rotate. The worm 42, through meshing with the worm gear 41, drives the worm gear 41 to rotate. The worm gear 41 drives the transmission shaft 43 to rotate synchronously. The transmission shaft 43 then drives the connecting shaft 3 and the cleaning wheel 5 to rotate via a coupling, thereby achieving the cutting and cleaning of carbon deposits by the sharp teeth 51.

[0027] Two handles 81 are symmetrically fixed to the outer circumference of the base 8. The two handles 81 are connected to the base 8 by welding or bolts, making it convenient for the operator to hold the device with both hands for stability. Each handle 81 is covered with a protective sleeve 82 on its outer circumference. The protective sleeve 82 is made of elastic rubber and has anti-slip texture on the surface, which can increase grip friction and relieve hand fatigue.

[0028] A positioning cylinder 9 is fixed to the end face of the base 8 near the connecting rod 1. The positioning cylinder 9 is connected to the base 8 by welding, and its axis is coaxial with the axis of the connecting rod 1. The end of the positioning cylinder 9 near the connecting rod 1 is open, and the inner diameter of the positioning cylinder 9 matches the outer diameter of the riser pipe. When the device is inserted into the riser pipe, the positioning cylinder 9 can be fitted onto the end of the riser pipe to achieve coaxial positioning, ensuring that the cleaning wheel 5 makes uniform contact with the inner wall of the riser pipe when it rotates, and avoiding incomplete cleaning or damage to components caused by displacement.

[0029] Working process: When cleaning carbon deposits on the inner wall of the riser pipe, the operator first holds the handle 81 on the outer circumference of the base 8 with both hands. The outer circumference of the handle 81 is covered with a protective sleeve 82. The protective sleeve 82 is made of elastic rubber and has anti-slip texture on the surface. This not only increases the friction between the hand and the handle 81, preventing slippage caused by sweat or oil on the hand, but also buffers the squeezing force of the handle 81 on the hand, reducing fatigue caused by holding for a long time, and ensuring that the operator can stably control the entire device.

[0030] Subsequently, the operator aligns the opening end of the positioning cylinder 9 near the connecting rod 1 with the end of the riser pipe to be cleaned. Since the inner diameter of the positioning cylinder 9 matches the outer diameter of the riser pipe, and the axis of the positioning cylinder 9 is coaxial with the axis of the connecting rod 1, after the positioning cylinder 9 is fitted onto the end of the riser pipe, the device and the riser pipe can be accurately coaxially positioned, effectively preventing the cleaning wheel 5 from colliding with the inner wall of the riser pipe due to axis misalignment during the subsequent cleaning process, or the occurrence of local carbon deposits that are not cleaned.

[0031] After positioning is completed, the operator starts the electric telescopic rod 7. Because the cylinder of the electric telescopic rod 7 is fixed to the base 8 near the connecting rod 1 by bolts, and the telescopic end is fixed to the connecting block 61 by bolts, and the telescopic direction of the electric telescopic rod 7 is consistent with the axial direction of the connecting rod 1, after starting, the telescopic end of the electric telescopic rod 7 will extend axially towards the inside of the riser pipe, thereby driving the connecting block 61 fixed to the telescopic end to move synchronously. The side of the connecting block 61 away from the electric telescopic rod 7 is fixedly connected to the extension pipe 6, which in turn is fixedly connected to the connecting rod 1. The end of the connecting rod 1 away from the extension pipe 6 is fixed to the housing 2, which is connected to the connecting shaft 3 and the cleaning wheel 5. Therefore, driven by the connecting block 61, the extension pipe 6, connecting rod 1, housing 2, connecting shaft 3, and cleaning wheel 5 will move synchronously along the axial direction of the riser pipe until the cleaning wheel 5 moves to the initial cleaning position where the carbon deposits on the inner wall of the riser pipe are located.

[0032] Next, the operator starts the drive motor 44 inside the housing 2. The housing of the drive motor 44 is fixed to the inner wall of the housing 2 by bolts, and its output shaft is fixedly connected to one end of the worm 42 by a coupling. After starting, the output shaft of the drive motor 44 will drive the worm 42 to rotate around its own axis. Since the worm 42 and the worm wheel 41 mesh with each other, the rotation of the worm 42 will drive the worm wheel 41 to rotate synchronously. The worm wheel 41 is fixedly connected to the drive shaft 43 coaxially by a key connection. The drive shaft 43 passes through the worm wheel 41 along the axis of the worm wheel 41. Therefore, the rotation of the worm wheel 41 will drive the drive shaft 43 to rotate synchronously. The end of the drive shaft 43 away from the worm wheel 41 is fixedly connected to the end of the connecting shaft 3 located inside the housing 2 by a coupling. Thus, the drive shaft 43 will transmit the rotational power to the connecting shaft 3, causing the connecting shaft 3 to rotate around its own axis.

[0033] One end of the connecting shaft 3, away from the drive shaft 43, extends through the side wall of the housing 2 away from the connecting rod 1 and is coaxially and fixedly connected to the cleaning wheel 5. Therefore, when the connecting shaft 3 rotates, it will drive the cleaning wheel 5 to rotate synchronously. The outer circumferential surface of the cleaning wheel 5 is evenly spaced with sharp teeth 51. The sharp teeth 51 are made of wear-resistant alloy material. During the high-speed rotation of the cleaning wheel 5, the sharp teeth 51 will fully contact the stubborn carbon deposits on the inner wall of the riser pipe and peel off the carbon deposits from the inner wall of the riser pipe by rotational cutting, thereby achieving carbon deposit cleaning.

[0034] During the cleaning process, to ensure that carbon deposits at different heights on the inner wall of the riser pipe are thoroughly cleaned, the operator can control the electric telescopic rod 7 to continuously extend and retract, causing the connecting block 61, extension pipe 6, connecting rod 1, housing 2, and cleaning wheel 5 to move slowly along the axial direction of the riser pipe. Throughout this process, the positioning cylinder 9 remains fitted onto the end of the riser pipe to ensure coaxiality between the device and the riser pipe. The operator further stabilizes the device by holding the handle 81 with both hands, preventing the device from shaking during the rotation and axial movement of the cleaning wheel 5, ensuring that the sharp teeth 51 can evenly apply to the carbon deposits on the inner wall of the riser pipe, thus improving the cleaning effect.

[0035] After all the carbon deposits on the inner wall of the riser pipe have been cleaned, the operator first turns off the drive motor 44 to stop the cleaning wheel 5 from rotating; then controls the telescopic end of the electric telescopic rod 7 to retract in the opposite direction, driving the connecting block 61, extension pipe 6, connecting rod 1, housing 2 and cleaning wheel 5 out of the riser pipe; finally, the positioning cylinder 9 is removed from the end of the riser pipe to complete the cleaning operation of the carbon deposits on the inner wall of the entire riser pipe.

[0036] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows: 1. It can efficiently remove stubborn carbon deposits. The cleaning wheel tip can rotate and cut hard carbon deposits. Combined with the speed reduction and torque increase function of the worm gear drive, it provides sufficient torque for cleaning and ensures that stubborn carbon deposits are effectively removed. 2. Highly adaptable and provides comprehensive cleaning. The extension tube can be adapted to riser tubes of different lengths, and the lifting mechanism can drive the cleaning wheels to cover different heights of the inner wall of the tube, eliminating blind spots in cleaning. 3. Convenient, stable and safe operation; the electric telescopic rod saves effort and precisely controls the movement of the cleaning wheels; the symmetrical handles with protective sleeves make them easy to hold and reduce fatigue; the positioning cylinder ensures that the device is coaxial with the riser tube, avoiding component collisions or cleaning deviations.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A riser pipe cleaning device, comprising a connecting rod (1), characterized in that, One end of the connecting rod (1) is fixed to a hollow box (2). The box (2) is equipped with a connecting shaft (3) and a drive mechanism (4). The output end of the drive mechanism (4) is connected to the connecting shaft (3) for transmission. The drive mechanism (4) can drive the connecting shaft (3) to rotate. One end of the connecting shaft (3) passes through the side wall of the box (2) and is coaxially fixedly connected to the cleaning wheel (5). The outer circumferential surface of the cleaning wheel (5) is evenly spaced with sharp teeth (51) along its circumference.

2. The riser pipe cleaning device according to claim 1, characterized in that, The drive mechanism (4) includes a worm wheel (41) and a worm (42) that mesh with each other. A transmission shaft (43) is coaxially fixed on the worm wheel (41). One end of the transmission shaft (43) is rotatably connected to the inner wall of the housing (2), and the other end is fixedly connected to the end of the connecting shaft (3) located inside the housing (2). One end of the worm (42) is rotatably connected to the inner wall of the housing (2), and the other end is fixedly connected to the output shaft of the drive motor (44). The housing of the drive motor (44) is fixedly connected to the housing (2).

3. The riser pipe cleaning device according to claim 1, characterized in that, The other end of the connecting rod (1) is fixedly connected to one end of the extension tube (6), and the extension tube (6) and the connecting rod (1) are coaxially arranged.

4. The riser pipe cleaning device according to claim 3, characterized in that, The other end of the extension tube (6) is fixed with a connecting block (61), and the connecting block (61) is provided with a lifting mechanism. The lifting mechanism can drive the connecting block (61) to move axially along the connecting rod (1).

5. The riser pipe cleaning device according to claim 4, characterized in that, The lifting mechanism is an electric telescopic rod (7). The telescopic direction of the electric telescopic rod (7) is the same as the axial direction of the connecting rod (1). The telescopic end of the electric telescopic rod (7) is fixedly connected to the connecting block (61). The cylinder of the electric telescopic rod (7) is fixedly connected to the base (8).

6. The riser pipe cleaning device according to claim 5, characterized in that, Two handles (81) are provided symmetrically along the circumference of the outer periphery of the base (8).

7. The riser pipe cleaning device according to claim 6, characterized in that, A protective sleeve (82) is fitted on the outer peripheral surface of the handle (81).

8. The riser pipe cleaning device according to claim 5, characterized in that, A positioning cylinder (9) is fixed on the end face of the base (8) near the connecting rod (1). The positioning cylinder (9) is coaxial with the connecting rod (1). The end of the positioning cylinder (9) near the connecting rod (1) is open, and the inner diameter of the positioning cylinder (9) is the same as the outer diameter of the riser pipe.

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