Culvert silt removal device and system

By designing a culvert silt removal device, utilizing a support and rope telescopic mechanism and a scraper mechanism, efficient and automated silt removal of narrow culverts is achieved, solving the problem of low silt removal efficiency in narrow culverts. It is suitable for cleaning both narrow and large culverts.

CN224431533UActive Publication Date: 2026-06-30宁夏公路管理中心银川分中心

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
宁夏公路管理中心银川分中心
Filing Date
2025-08-08
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing technologies are insufficient for efficiently cleaning silt from narrow culverts, resulting in low dredging efficiency and high labor intensity.

Method used

A culvert silt cleaning device was designed, including a support mechanism, a rope telescopic mechanism, a drive mechanism, and a scraper mechanism. The height of the rope telescopic mechanism is adjusted by the support mechanism, so that the scraper mechanism can extend into the culvert to scrape out the silt. The device is combined with a tracked vehicle and a hydraulic system to achieve automated cleaning.

Benefits of technology

It improves the dredging efficiency of narrow culverts, reduces labor intensity, is suitable for dredging operations in narrow culverts, and can be extended to the cleaning of larger culverts.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model provides a culvert silt cleaning device and system, relating to the field of cleaning equipment technology. The device includes: a support mechanism, a rope telescopic mechanism, a drive mechanism, and a scraper mechanism. The lower end of the support mechanism is fixed to the ground, and the upper end is fixedly connected to the basic arm of the rope telescopic mechanism. The support mechanism is telescopic, used to adjust the height of the rope telescopic mechanism. The scraper mechanism is height-adjustable and installed on the frontmost telescopic arm of the rope telescopic mechanism. The drive mechanism is located inside the rope telescopic mechanism, used to drive each telescopic arm of the rope telescopic mechanism to extend, allowing the scraper mechanism to extend into the culvert. When the telescopic arms of the rope telescopic mechanism are retracted, the scraper mechanism scrapes out the silt from the culvert. This system is carried by a tracked vehicle, which suspends the culvert silt cleaning device and is equipped with hydraulic power and control devices. It is suitable for silt cleaning operations in narrow culverts, improving the silt cleaning efficiency of narrow culverts.
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Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a culvert silt cleaning device and system. Background Technology

[0002] A culvert is a water passage built beneath the road surface during highway or railway construction to allow water to flow smoothly under the road or railway without obstructing traffic. This structure allows water to flow under the road or railway, serving purposes such as draining floodwaters across natural valleys and depressions, crossing roads of all sizes as an overpass for people, livestock, and even vehicles, or acting as an irrigation canal for farmland. Therefore, culverts play a vital role in urban transportation systems and agricultural production. However, with prolonged use and harsh environmental conditions, culverts accumulate water, silt, branches, garbage, and other materials. Once blocked, this not only affects the culvert's normal drainage function but also hinders the passage of people and vehicles. Therefore, regularly cleaning culverts and removing blockages and debris is crucial for urban transportation and agricultural production.

[0003] However, large mechanical equipment is usually used for dredging of culverts with larger openings. For narrow culverts with smaller openings, such as box-shaped culverts of 1.5m*1.5m or 2m*2m, large dredging equipment cannot enter and dredging cannot be carried out mechanically. At present, dredging work is generally carried out manually, which is not only labor-intensive but also inefficient. Utility Model Content

[0004] In view of this, and to address the above shortcomings, it is necessary to propose a culvert silt removal device and system that is applicable to silt removal operations in narrow culverts and improves the silt removal efficiency of narrow culverts.

[0005] This utility model provides a culvert silt cleaning device, including: a support mechanism, a rope telescopic mechanism, a drive mechanism, and a scraper mechanism; the lower end of the support mechanism is fixed to the ground, and the upper end is fixedly connected to the basic arm of the rope telescopic mechanism, and the support mechanism is telescopic to adjust the height of the rope telescopic mechanism; the scraper mechanism is height-adjustable and installed on the telescopic arm of the foremost section of the rope telescopic mechanism; the drive mechanism is located inside the rope telescopic mechanism and is used to drive each section of the rope telescopic mechanism to extend, so that the scraper mechanism extends into the culvert, and to scrape out the silt in the culvert through the scraper mechanism when each section of the rope telescopic mechanism is retracted.

[0006] Preferably, the driving mechanism is driven by an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0007] Preferably, the support mechanism includes at least one, and each support mechanism includes a fixed base and a first hydraulic cylinder; the bottom end of the fixed base is used to fix it to the ground, the fixed end of the first hydraulic cylinder is fixedly installed on the basic arm of the rope telescopic mechanism, the telescopic end is movably connected to the fixed base through a pin, and the first hydraulic cylinder can rotate along the axial direction of the rope telescopic mechanism with the fixed base as the support point.

[0008] Preferably, the driving mechanism is a second hydraulic cylinder, and the rope telescopic mechanism includes a basic arm and at least two telescopic arms sequentially sleeved in the basic arm; the telescopic end of the second hydraulic cylinder is fixedly installed on the inner wall of the basic arm, and the fixed end is fixedly connected to the inner wall of the first telescopic arm; the second hydraulic cylinder is powered by a pressure pump.

[0009] Preferably, a first pulley and a second pulley are installed at the front and rear ends of the first telescopic arm, respectively. One end of the first rope is fixed to the basic arm, and the other end passes through the first pulley and the second pulley in sequence before being fixed to the basic arm.

[0010] The second telescopic boom is equipped with a third pulley and a fourth pulley at its front and rear ends, respectively. One end of the second rope is fixed to the first telescopic boom, and the other end passes through the third pulley and the fourth pulley in sequence before being fixed to the first telescopic boom.

[0011] The fifth and sixth pulleys are installed at the front and rear ends of the third telescopic boom, respectively. One end of the third rope is fixed to the second telescopic boom, and the other end passes through the fifth and sixth pulleys in sequence before being fixed to the second telescopic boom.

[0012] The front end of the third telescopic arm is provided with a guide arm, one end of which is fixedly connected to the interior of the third telescopic arm, and the other end is fixedly installed with the scraper mechanism.

[0013] Preferably, the basic arm and each telescopic arm are provided with an upper limit block and a lower limit block to prevent collisions between adjacent telescopic arms.

[0014] Preferably, the front guide arm of the rope telescopic mechanism is provided with anti-collision wheels on both sides, and the wheel surface of the anti-collision wheels is perpendicular to the ground.

[0015] Secondly, this utility model provides a culvert silt cleaning system, including: a tracked vehicle, a hydraulic power unit, a hydraulic control unit, an angle adjustment device, and a culvert silt cleaning device as described in any of the first aspects;

[0016] The tail end of the basic arm of the culvert silt cleaning device is rotatably mounted on the tracked vehicle. One end of the angle adjustment device is mounted on the tracked vehicle, and the other end is movably connected to the basic arm of the culvert silt cleaning device to adjust the vertical angle of the front end of the culvert silt cleaning device.

[0017] The hydraulic power unit is mounted on the tracked vehicle and is used to provide power to each hydraulically driven component; the hydraulic control unit is mounted on the tracked vehicle and is used to control each hydraulically driven component.

[0018] Preferably, the angle adjustment device includes: a third hydraulic cylinder and an arc-shaped connecting rod; the fixed end of the third hydraulic cylinder is movably mounted on the tracked vehicle, and the telescopic end is movably connected to the arc-shaped connecting rod; one end of the arc-shaped connecting rod is movably mounted on the basic arm of the culvert sludge cleaning device via a pin, and the other end is movably mounted on the tracked vehicle via a pin.

[0019] Preferably, the tracked vehicle is also equipped with at least one hydraulic outrigger to maintain the balance and stability of the tracked vehicle and prevent it from tipping over due to imbalance of its center of gravity.

[0020] As can be seen from the above technical solution, the culvert silt cleaning device provided in this embodiment of the utility model includes a support mechanism, a rope telescopic mechanism, a drive mechanism, and a scraper mechanism. The lower end of the support mechanism is fixed to the ground, and the upper end is fixedly connected to the basic arm of the rope telescopic mechanism. The support mechanism is telescopic, allowing adjustment of the height of the rope telescopic mechanism. The scraper mechanism is height-adjustable and installed on the telescopic arm at the frontmost section of the rope telescopic mechanism. The drive mechanism is located inside the rope telescopic mechanism, enabling it to drive the telescopic arms of the rope telescopic mechanism to extend and retract, allowing the scraper mechanism to extend into the culvert. When the telescopic arms of the rope telescopic mechanism are retracted, the scraper mechanism scrapes out the silt from the culvert. Therefore, for narrow culverts, this culvert silt cleaning device can be placed at the culvert opening. The height of the rope telescopic mechanism can be adjusted using the support mechanism, and the rope telescopic mechanism can be extended into the culvert from a position near the top. Then, the height of the rope telescopic mechanism can be lowered using the support mechanism, and the rope telescopic mechanism can be retracted, allowing the scraper mechanism at the front end to scrape out the silt from the culvert. The device provided by this solution can simply extend the rope telescopic arm into the culvert to clean up the silt. The height of the rope telescopic mechanism is adjustable, and it is small in size and low in height, making it suitable for silt removal operations in narrow culverts. Compared with manual silt removal, it can greatly improve silt removal efficiency.

[0021] In addition, the culvert silt cleaning system provided in this solution includes a tracked vehicle, a hydraulic power unit, a hydraulic control unit, an angle adjustment device, and the aforementioned culvert silt cleaning device. That is, by installing the culvert silt cleaning device on the tracked vehicle, it is not only convenient to transport and carry the culvert silt cleaning device, but also the system can be used to directly clean silt from relatively large culverts. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a culvert silt removal device provided in an embodiment of the present utility model.

[0023] Figure 2 This is a schematic diagram of a rope telescopic mechanism provided in an embodiment of the present utility model.

[0024] Figure 3 A cross-sectional view of a culvert silt removal device provided in an embodiment of this utility model.

[0025] Figure 4 This is a schematic diagram of a culvert silt removal system provided in an embodiment of the present utility model.

[0026] In the diagram: Support mechanism 10, fixed base 11, first hydraulic cylinder 12, rope telescopic mechanism 20, basic arm 21, first telescopic arm 22, first pulley 221, second pulley 222, first rope 223, second telescopic arm 23, third pulley 231, fourth pulley 232, second rope 233, third telescopic arm 24, fifth pulley 241, sixth pulley 242, third rope 243, front guide arm 25, drive mechanism 30, second hydraulic cylinder 31, scraper mechanism 40, upper limit block 50, lower limit block 60, anti-collision wheel 70, culvert silt cleaning device 100, tracked vehicle 200, hydraulic outrigger 201, hydraulic power unit 300, hydraulic control device 400, angle adjustment device 500, third hydraulic cylinder 501, arc-shaped connecting rod 502. Detailed Implementation

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] See Figure 1-3 This utility model provides a culvert silt cleaning device 100, characterized in that it includes: a support mechanism 10, a rope telescopic mechanism 20, a drive mechanism 30, and a scraper mechanism 40; the lower end of the support mechanism 10 is fixed to the ground, and the upper end is fixedly connected to the basic arm 21 of the rope telescopic mechanism 20, and the support mechanism 10 is telescopic to adjust the height of the rope telescopic mechanism 20; the scraper mechanism 40 is height-adjustable and installed on the telescopic arm of the foremost section of the rope telescopic mechanism 20; the drive mechanism 30 is disposed inside the rope telescopic mechanism 20, and is used to drive each section of the rope telescopic mechanism 20 to extend, so that the scraper mechanism 40 extends into the culvert, and to scrape out the silt in the culvert through the scraper mechanism 40 when the each section of the rope telescopic mechanism 20 is retracted.

[0029] In this embodiment, for narrow culverts, the culvert silt removal device 100 can be placed at the culvert opening. The height of the rope telescopic mechanism 20 is adjusted via the support mechanism 10, and the rope telescopic mechanism 20 is extended into the culvert from a position near the top. Then, the height of the rope telescopic mechanism 20 is lowered via the support mechanism 10, and the rope telescopic mechanism 20 is retracted. Subsequently, the silt inside the culvert is scraped out by the scraper mechanism 40 at the front end. The device provided by this solution can remove silt by extending only the rope telescopic arm into the culvert. Furthermore, the height of the rope telescopic mechanism 20 is adjustable, and its small size and low height make it suitable for silt removal operations in narrow culverts. Compared to manual silt removal, it can greatly improve silt removal efficiency.

[0030] For the drive mechanism 30, electric cylinder drive, pneumatic cylinder drive, and hydraulic cylinder drive can be used. In this solution, hydraulic cylinder drive is preferred, and the hydraulic cylinder can be driven externally by a hydraulic pump.

[0031] In order to enable the culvert silt removal device 100 to be placed on the ground for use, in one embodiment, a height-adjustable support mechanism 10 is considered. Specifically, the support mechanism 10 may include at least one, and each support mechanism 10 includes a fixed base 11 and a first hydraulic cylinder 12; the bottom end of the fixed base 11 is used to fix it to the ground, the fixed end of the first hydraulic cylinder 12 is fixedly installed on the basic arm 21 of the rope telescopic mechanism 20, the telescopic end is movably connected to the fixed base 11 by a pin, and the first hydraulic cylinder 12 can rotate along the axial direction of the rope telescopic mechanism 20 with the fixed base 11 as the support point.

[0032] In this embodiment, during sludge removal operations, the fixed base 11 of the support mechanism 10 is fixed to the ground. When the rope telescopic mechanism 20 extends into the culvert, the height of the rope telescopic mechanism 20 can be adjusted by the first hydraulic cylinder 12 of the support mechanism 10, allowing the telescopic arm of the rope telescopic mechanism 20 to extend inward from the top of the sludge inside the culvert. After extending into place, the height of the rope telescopic mechanism 20 is lowered by the first hydraulic cylinder 12 of the support mechanism 10, causing the scraper of the rope telescopic mechanism 20 to insert into the sludge in the culvert. Furthermore, by retracting the rope telescopic mechanism 20, the sludge inside the culvert can be scraped out.

[0033] For the rope telescopic mechanism 20, existing two-, three-, or four-section rope telescopic mechanisms 20 can be used. Of course, in one embodiment, the driving mechanism is a second hydraulic cylinder 31. The rope telescopic mechanism 20 provided in this solution may include a basic arm 21 and at least two telescopic arms sequentially sleeved within the basic arm 21; the telescopic end of the second hydraulic cylinder 31 is fixedly installed on the inner wall of the basic arm 21, and the fixed end is fixedly connected to the inner wall of the first telescopic arm 22; the second hydraulic cylinder 31 is powered by a pressure pump.

[0034] The first telescopic arm 22 is equipped with a first pulley 221 and a second pulley 222 at its front and rear ends respectively. One end of the first rope row 223 is fixed to the basic arm 21, and the other end passes through the first pulley 221 and the second pulley 222 in sequence before being fixed to the basic arm 21.

[0035] The front and rear ends of the second telescopic boom 23 are respectively equipped with a third pulley 231 and a fourth pulley 232. One end of the second rope row 233 is fixed on the first telescopic boom 22, and the other end passes through the third pulley 231 and the fourth pulley 232 in sequence before being fixed on the first telescopic boom 22.

[0036] The front and rear ends of the third telescopic boom 24 are respectively equipped with the fifth pulley 241 and the sixth pulley 242. One end of the third rope row 243 is fixed on the second telescopic boom 23, and the other end passes through the fifth pulley 241 and the sixth pulley 242 in sequence before being fixed on the second telescopic boom 23.

[0037] The front end of the third telescopic arm 24 is provided with a front guide arm 25. One end of the front guide arm 25 is fixedly connected to the interior of the third telescopic arm 24, and the scraper mechanism 40 is fixedly installed on the other end.

[0038] In this embodiment, the second hydraulic cylinder 31 drives the first telescopic arm 22 to extend and retract, and at the same time, through the coordinated cooperation of each rope row, the telescopic arm sections extend and retract simultaneously.

[0039] Considering that the telescopic booms may swing up and down during extension and retraction due to gravity or other factors, to prevent collisions between adjacent booms and potential damage, upper limit blocks 50 and lower limit blocks 60 are installed on the base boom 21 and each boom section. Specifically, the upper limit block 50 is positioned above the foremost point of the corresponding boom, and the lower limit block 60 is positioned on the inner surface of the foremost point of the corresponding boom. For example, for the base boom 21, the upper limit block 50 is positioned above the extended end of the first boom section 22, with one end extending downwards towards the first boom section 22. This ensures that when the first boom section 22 swings upwards, it first collides with the upper limit block 50, preventing a collision with the upper end of the base boom 21. The lower limit block 60 can be positioned below one end of the first boom section 22, similarly to the upper limit block 50. Alternatively, it can be positioned inside the basic arm 21 so that when the first telescopic arm 22 swings downward, it first collides with the lower limit block 60, avoiding a collision with the lower end of the basic arm 21. It is easy to understand that both the upper limit block 50 and the lower limit block 60 can be made of rubber.

[0040] Furthermore, in practical applications, when the rope telescopic mechanism 20 extends and retracts within the culvert, it may collide with the left and right side walls of the culvert, thereby damaging the telescopic arm. Therefore, in one embodiment, anti-collision wheels 70 are provided on both sides of the front guide arm 25 of the rope telescopic mechanism 20, with the wheel surface of the anti-collision wheels 70 perpendicular to the ground. Thus, when the rope telescopic mechanism 20 extends and retracts inside the culvert, if the direction of the rope telescopic mechanism 20 deviates, causing the front guide arm 25 to collide with the side wall of the culvert, the anti-collision wheels 70 will first contact the side wall of the culvert, thereby preventing the front guide arm 25 from colliding with the inner wall of the culvert. Moreover, the anti-collision wheels 70 can travel along the inner wall of the culvert when in contact with it, thereby guiding the rope telescopic mechanism 20 to extend and retract along the culvert direction.

[0041] Further, see Figure 4 The present invention also provides a culvert silt cleaning system, including: a tracked vehicle 200, a hydraulic power unit 300, a hydraulic control unit 400, an angle adjustment device 500, and a culvert silt cleaning device 100 as described in any of the above embodiments;

[0042] The tail end of the basic arm 21 of the culvert silt cleaning device 100 is rotatably mounted on the tracked vehicle 200. One end of the angle adjustment device 500 is mounted on the tracked vehicle 200, and the other end is movably connected to the basic arm 21 of the culvert silt cleaning device 100 to adjust the vertical angle of the front end of the culvert silt cleaning device 100.

[0043] The hydraulic power unit 300 is mounted on the tracked vehicle 200 and is used to provide power to each hydraulically driven component; the hydraulic control unit 400 is mounted on the tracked vehicle 200 and is used to control each hydraulically driven component.

[0044] In this embodiment, the culvert sludge cleaning device 100 is carried and installed using a tracked vehicle 200. Under normal conditions, the culvert sludge cleaning device 100 can be fixedly mounted on the tracked vehicle 200. For large culverts, the culvert sludge cleaning device 100 can operate directly on the tracked vehicle 200 to perform sludge cleaning operations. For relatively narrow culverts, the culvert sludge cleaning device 100 can be disassembled and placed on the ground using the support mechanism 10, thereby further reducing the equipment height and size, and thus achieving the purpose of sludge cleaning operations in narrow culverts.

[0045] In addition, a hydraulic power unit 300 and a hydraulic control unit 400 can be installed on the tracked vehicle 200 to provide power to each hydraulic cylinder, and at the same time control the operation of each hydraulic cylinder through the hydraulic control unit 400, thereby achieving the purpose of dredging operation.

[0046] To ensure the culvert sludge cleaning device 100 can be angled while mounted on the tracked vehicle 200, thus facilitating sludge cleaning operations, an angle adjustment device 500 is considered. Specifically, in one embodiment, the angle adjustment device 500 may include a third hydraulic cylinder 501 and an arc-shaped connecting rod 502. The fixed end of the third hydraulic cylinder 501 is movably mounted on the tracked vehicle 200, and the telescopic end is movably connected to the arc-shaped connecting rod 502. One end of the arc-shaped connecting rod 502 is movably mounted on the basic arm 21 of the culvert sludge cleaning device 100 via a pin, and the other end is movably mounted on the tracked vehicle 200 via a pin. Thus, extending the third hydraulic cylinder 501 raises the front end of the rope telescopic mechanism 20, and retracting the third hydraulic cylinder 501 lowers the front end of the rope telescopic mechanism 20. Therefore, in actual culvert cleaning operations, the upward or downward movement of the rope telescopic arm can be adjusted according to the specific working conditions.

[0047] Furthermore, to facilitate the installation and disassembly of the culvert sludge cleaning device 100, the angle adjustment device 500 and the culvert sludge cleaning device 100, as well as the tracked vehicle 200 and the culvert sludge cleaning device 100, are detachably connected via pins. During disassembly, the support mechanism 10 can be lowered, and the first hydraulic cylinder 12 can be driven to extend and support the device on the ground, while the second hydraulic cylinder 31 is driven to extend the telescopic arm of the rope telescopic mechanism 20. When the rope telescopic mechanism 20 extends to its first length, the rear end of the rope telescopic mechanism 20 will tilt upwards, and the front end will drop towards the ground, making it easy to disassemble the pins connecting the culvert sludge cleaning device 100 to the tracked vehicle 200 and the angle adjustment device 500. Conversely, when installing the culvert sludge cleaning device 100 on the tracked vehicle 200, the support mechanism 10 can be lifted first, raising the rear end of the rope telescopic mechanism 20, thereby installing the pins and thus achieving the installation of the culvert sludge cleaning device 100.

[0048] In addition, in order to prevent the tracked vehicle 200 from tipping over due to loss of balance when the culvert sludge cleaning device 100 is used on the tracked vehicle 200, it is considered to install hydraulic outriggers 201 around the tracked vehicle 200 to maintain the balance and stability of the tracked vehicle 200.

[0049] The modules or units in the device of this utility model embodiment can be merged, divided, and deleted according to actual needs. The above-disclosed embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Those skilled in the art can understand that implementing all or part of the processes of the above embodiments and making equivalent changes according to the claims of this utility model still fall within the scope of this utility model.

Claims

1. A culvert silt removal device, characterized in that, include: The system comprises a support mechanism, a rope telescopic mechanism, a drive mechanism, and a scraper mechanism. The lower end of the support mechanism is fixed to the ground, and the upper end is fixedly connected to the basic arm of the rope telescopic mechanism. The support mechanism is telescopic, used to adjust the height of the rope telescopic mechanism. The scraper mechanism is height-adjustable and mounted on the foremost telescopic arm of the rope telescopic mechanism. The drive mechanism is located inside the rope telescopic mechanism, used to drive each telescopic arm of the rope telescopic mechanism to extend, allowing the scraper mechanism to extend into the culvert, and to scrape out the silt from the culvert when each telescopic arm of the rope telescopic mechanism retracts.

2. The culvert silt removal device according to claim 1, characterized in that, The driving mechanism is driven by an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

3. The culvert silt removal device according to claim 1, characterized in that, The support mechanism includes at least one, and each support mechanism includes a fixed base and a first hydraulic cylinder; the bottom end of the fixed base is used to fix it to the ground, the fixed end of the first hydraulic cylinder is fixedly installed on the basic arm of the rope telescopic mechanism, the telescopic end is movably connected to the fixed base through a pin, and the first hydraulic cylinder can rotate along the axial direction of the rope telescopic mechanism with the fixed base as the support point.

4. The culvert silt removal device according to claim 2, characterized in that, The driving mechanism is a second hydraulic cylinder, and the rope telescopic mechanism includes a basic arm and at least two telescopic arm sections sequentially sleeved in the basic arm; the telescopic end of the second hydraulic cylinder is fixedly installed on the inner wall of the basic arm, and the fixed end is fixedly connected to the inner wall of the first telescopic arm section; the second hydraulic cylinder is powered by a pressure pump.

5. The culvert silt removal device according to claim 4, characterized in that, The first telescopic boom is equipped with a first pulley and a second pulley at its front and rear ends, respectively. One end of the first rope is fixed to the basic boom, and the other end passes around the first pulley and the second pulley in sequence before being fixed to the basic boom. The second telescopic boom is equipped with a third pulley and a fourth pulley at its front and rear ends, respectively. One end of the second rope is fixed to the first telescopic boom, and the other end passes through the third pulley and the fourth pulley in sequence before being fixed to the first telescopic boom. The fifth and sixth pulleys are installed at the front and rear ends of the third telescopic boom, respectively. One end of the third rope is fixed to the second telescopic boom, and the other end passes through the fifth and sixth pulleys in sequence before being fixed to the second telescopic boom. The front end of the third telescopic arm is provided with a guide arm, one end of which is fixedly connected to the interior of the third telescopic arm, and the other end is fixedly installed with the scraper mechanism.

6. The culvert silt removal device according to claim 5, characterized in that, The basic arm and each telescopic arm section are equipped with upper limit blocks and lower limit blocks to prevent collisions between adjacent telescopic arms.

7. The culvert silt removal device according to claim 5, characterized in that, The front guide arm of the rope telescopic mechanism is equipped with anti-collision wheels on both sides, and the wheel surface of the anti-collision wheels is perpendicular to the ground.

8. A culvert silt removal system, characterized in that, include: Tracked vehicle, hydraulic power unit, hydraulic control unit, angle adjustment device, and culvert silt removal device as described in any one of claims 1-7; The tail end of the basic arm of the culvert silt cleaning device is rotatably mounted on the tracked vehicle. One end of the angle adjustment device is mounted on the tracked vehicle, and the other end is movably connected to the basic arm of the culvert silt cleaning device to adjust the vertical angle of the front end of the culvert silt cleaning device. The hydraulic power unit is mounted on the tracked vehicle and is used to provide power to each hydraulically driven component; the hydraulic control unit is mounted on the tracked vehicle and is used to control each hydraulically driven component.

9. The culvert silt removal system according to claim 8, characterized in that, The angle adjustment device includes a third hydraulic cylinder and an arc-shaped connecting rod; the fixed end of the third hydraulic cylinder is movably mounted on the tracked vehicle, and the telescopic end is movably connected to the arc-shaped connecting rod; one end of the arc-shaped connecting rod is movably mounted on the basic arm of the culvert sludge cleaning device via a pin, and the other end is movably mounted on the tracked vehicle via a pin.

10. The culvert silt removal system according to claim 8, characterized in that, The tracked vehicle is also equipped with at least one hydraulic outrigger to maintain its balance and stability and prevent it from tipping over due to a loss of balance.