A multi-stage sand collection and automatic dredging device for slope runoff
By using high-frequency impact and a spiral agitator to break up and remove silt from the outside of the transmission pipeline, the problem of silt sticking to the inner wall of the pipeline was solved, achieving efficient, stable and low-consumption operation of the dredging process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN DEYU CONSTR CO LTD
- Filing Date
- 2025-08-30
- Publication Date
- 2026-07-21
AI Technical Summary
Existing technologies cannot effectively prevent sludge from adhering to the inner wall of transmission pipelines, leading to blockage problems.
An anti-adhesion component is used, including a motor driving a striking block to strike the outside of the transmission pipe at high frequency, combined with spring reset, to break the adhesion between the sludge and the inner wall of the pipe; at the same time, a spiral disperser is used to break up and transport the sludge to ensure smooth transmission.
It effectively prevents sludge from sticking and clogging inside the pipe, improves dredging efficiency and device stability, and has the advantages of dynamic vibration anti-sticking, low consumption and high efficiency, intelligent adaptation and long-term maintenance.
Smart Images
Figure CN224531785U_ABST
Abstract
Description
Technical Field
[0001] This application relates to dredging devices, and more particularly to a multi-stage sediment collection and automatic dredging device for slope runoff. Background Technology
[0002] The multi-stage sedimentation and automatic dredging device for slope runoff is a treatment device that intercepts runoff sediment through a combination of multi-stage sedimentation tanks and uses automated machinery for regular dredging. It is mainly used in soil and water conservation, ecological management and municipal water conservancy projects to intercept sediment, purify water quality and protect downstream facilities. It has the advantages of high efficiency sedimentation, automatic dredging, strong terrain adaptability, dual ecological and economic benefits and intelligent low maintenance.
[0003] A search revealed Chinese Patent Publication No. CN222782121U, which discloses a dredging device for water conservancy projects. The device includes a mounting shell, a servo motor, a connecting frame, a spiral conveyor plate, a collection chamber, a conduit, and a mud pump. The servo motor is mounted on the upper part of the mounting shell, and the spiral conveyor plate is fixedly connected to the output shaft of the servo motor. The spiral conveyor plate rotates within the mounting shell. The connecting frame is fixedly connected to the bottom of the mounting shell. A conduit is connected to the upper right side of the mounting shell, and the mud pump is mounted in the middle of the conduit. The device also includes a stirring paddle, which is fixedly connected to the output shaft of the servo motor and located below the spiral conveyor plate. The servo motor's output shaft drives the stirring paddle to rotate, thereby breaking up the silt and facilitating its discharge, preventing silt blockage of the conduit.
[0004] The aforementioned patent specification mentions that "the output shaft of the servo motor drives the agitator to rotate, thereby breaking up the sludge and facilitating its discharge, thus preventing sludge from clogging the conduit." While the patent can break up the sludge, the sludge itself is sticky, making it impossible to prevent it from adhering to the inside of the transmission pipe. Therefore, a multi-stage sediment collection and automatic sludge removal device for slope runoff is proposed to solve this problem. Utility Model Content
[0005] The purpose of this application is to provide a multi-stage sediment collection and automatic dredging device for slope runoff, which aims to improve the problem of unavoidable silt sticking to the inner wall of the pipe.
[0006] The multi-stage sediment collection and automatic dredging device for slope runoff provided in this application adopts the following technical solution: it includes an outer shell, a transmission mechanism is fixedly connected to the top of the outer shell, a transmission pipe is fixedly connected to the outer side of the outer shell, a docking mechanism is slidably connected to the end of the transmission pipe away from the outer shell, a moving mechanism is fixedly connected to the outer side of the outer shell, and a limiting mechanism is fixedly connected to the outer side of the transmission pipe. The limiting mechanism includes a limiting shell, one end of which is fixedly connected to the outside of the transmission pipe, and a sliding block is slidably connected inside the limiting shell, and an anti-sticking component is fixedly connected inside the sliding block.
[0007] The above technical solution works as follows: When dredging is required, the outer shell is transported to the designated location by the moving mechanism, and the external pipeline is quickly connected by the docking mechanism. After the transmission mechanism is started, the sludge in the sedimentation tank is transported to the transmission pipeline. At this time, the limiting mechanism plays a role. The motor in the anti-adhesion component drives the sliding block to slide back and forth in the limiting shell, which in turn drives the striking block to strike the outside of the transmission pipeline at high frequency. The vibration generated by the striking is transmitted to the inside of the pipeline, which breaks the adhesion between the sludge and the inner wall of the pipeline, preventing the sludge from sticking and blocking. At the same time, the sliding block is reset by the spring after the striking, ready for the next striking, continuously ensuring the smooth flow of the transmission pipeline and ensuring the smooth discharge of sludge.
[0008] Preferably, the anti-sticking component includes a second motor, the outer side of which is fixedly connected to the sliding block, and a knocking block is fixedly connected to the driving end of the second motor. By adopting the above technical solution: During dredging, the moving mechanism transports the device to the designated location, and the docking mechanism completes the pipeline connection. During the conveying process of the dredged material, the motor of the limiting mechanism drives the sliding block to slide within the limiting shell, causing the striking block to strike the outside of the conveying pipeline at high frequency. The vibration breaks the adhesion between the dredged material and the inner wall, and the spring resets the sliding block, continuously preventing adhesion and ensuring smooth discharge of the dredged material.
[0009] Preferably, the transmission mechanism includes a motor, the drive end of the motor is fixedly connected to a auger transmission, and the bottom of the auger transmission is fixedly connected to a spiral separator. By adopting the above technical solution: during dredging, motor one is started, which drives the auger to rotate, and at the same time drives the bottom spiral disperser to operate synchronously. The spiral disperser first breaks up and disperses the deposited silt to avoid caking; the auger then uses the pushing force of the spiral blades to transport the dispersed silt from the shell to the transmission pipeline, realizing continuous operation from crushing to transmission and improving dredging efficiency.
[0010] Preferably, the docking mechanism includes a first limiting ring, the outer side of which is slidably connected to the outer side of the transmission pipe, a connecting block is fixedly connected to the outer side of the first limiting ring, and the other end of the connecting block is fixedly connected to the outer side of the second limiting ring. By adopting the above technical solution: during dredging operations, push the first limiting ring along the transmission pipeline to the docking position, align the second limiting ring with the connecting block, rotate the first limiting ring to fit with the second limiting ring, and use the connecting block to fix the relative positions of the two, forming a ring-shaped clamp on the pipeline interface, quickly completing the sealed docking of the transmission pipeline and the external pipeline, creating a passage for dredging and transportation, which is convenient to operate and has strong sealing performance.
[0011] Preferably, the second limiting ring has two placement slots inside, and the first limiting ring has two placement slots inside; By adopting the above technical solution: during dredging operations, the first limiting ring is pushed to slide along the transmission pipeline to the docking position, and the two ends of the external pipeline are respectively embedded into the placement grooves of the second limiting ring and the first limiting ring. The placement grooves of the two rings form multi-point positioning for the pipeline. The first limiting ring is rotated to fit with the second limiting ring. After being fixed by the connecting block, the inner wall of the placement groove fits tightly with the outer wall of the pipeline, further enhancing the stability and sealing of the docking, preventing dredging leakage, and ensuring efficient and smooth transportation.
[0012] Preferably, a connecting plate is fixedly connected to the outer side of the first limiting ring, and the bottom of the first limiting ring is slidably connected to the top of the second limiting ring; By adopting the above technical solution: during dredging and docking, the first limiting ring is slid off the top of the second limiting ring to expose the interface area. The pipe is then placed into the placement groove at the top of the second limiting ring, and the first limiting ring is pushed back to its original position so that its bottom fits against the top of the second limiting ring. The pipe is then fixed with bolts through the outer connecting plate to form an upper and lower circling structure. This design utilizes sliding fit and bolt fastening to achieve quick alignment and sealing of the pipe interface. The operation is simple and the connection is firm, ensuring no leakage during the dredging and transportation process.
[0013] Preferably, a spring is fixedly connected to the outer side of the sliding block, and the other end of the spring is fixedly connected to the outer side of the transmission pipe; By adopting the above technical solution: during dredging, the motor drives the striking block to impact the outside of the transmission pipeline. The impact force causes the sliding block to move backward and compress the spring. After the striking block leaves the pipeline, the spring releases its elastic potential energy and pulls the sliding block back to its original position, forming a reciprocating motion. Through buffering and reset, the spring not only avoids the striking block from damaging the pipeline by hard collision, but also ensures a stable striking frequency. The continuous use of vibration prevents sludge from sticking together, thereby improving transmission efficiency and equipment lifespan.
[0014] Preferably, the moving mechanism includes a fixed ring, the inner side of which is fixedly connected to the outer side of the housing, and three brackets are fixedly connected to the outer side of the fixed ring. A sliding rod is fixedly connected to the bottom of each of the three brackets, and a frame is fixedly connected to the end of the sliding rod away from the bracket. By adopting the above technical solution: during dredging operations, the device adjusts its position through a moving mechanism. The fixing ring secures three supports to the outside of the outer shell, and the sliding rod at the bottom of the support can slide flexibly within the frame, allowing the device to adapt to different slope angles. When the outer shell is pushed, the frame contacts the ground to form support, and the sliding rod slides within the support to buffer ground bumps, ensuring that the device moves smoothly and quickly reaches the working area such as the sedimentation tank, thus improving the dredging response efficiency.
[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. In this utility model, by using a limiting shell in conjunction with a sliding block, and the sliding block in conjunction with a second motor, the second motor drives a striking block, thereby preventing sludge from sticking inside the transmission pipeline. With the advantages of dynamic vibration breaking adhesion, high efficiency and low consumption, intelligent adaptation and long-term maintenance, it provides reliable technical support for the stable operation of the slope runoff dredging device under complex terrain and working conditions.
[0016] 2. In this utility model, by using a first limiting ring to connect to a connecting block, a second limiting ring to connect to a second limiting ring, and a connecting plate to connect to the connecting plate, the pipeline of the transmission pipeline can be connected, which facilitates the external transmission of sludge. It has the advantages of efficient installation, reliable sealing, low cost, strong terrain adaptability and convenient maintenance, and provides key technical support for the flexible deployment and stable operation of slope runoff dredging devices in complex scenarios. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of a multi-stage sediment collection and automatic dredging device for slope runoff proposed in this utility model. Figure 2 This is a schematic diagram of a spiral disperser for a multi-stage sediment collection and automatic dredging device for slope runoff proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle; Explanation of reference numerals in the attached drawings: 1. Outer shell; 2. Transmission mechanism; 21. Motor 1; 22. Auger transmission; 23. Spiral disperser; 3. Transmission pipe; 4. Docking mechanism; 41. Restriction ring 1; 42. Connecting plate; 43. Placement slot; 44. Connecting block; 45. Restriction ring 2; 5. Moving mechanism; 51. Fixed ring; 52. Bracket; 53. Sliding rod; 54. Frame; 6. Restriction mechanism; 61. Restriction shell; 62. Sliding block; 63. Anti-stick component; 631. Motor 2; 632. Striking block; 64. Spring. Detailed Implementation
[0018] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail below.
[0019] A multi-stage sediment collection and automatic dredging device for slope runoff, referring to Figures 1 to 3The device includes an outer shell 1, which serves as the main body, providing installation support and protection for the internal mechanisms and ensuring overall structural stability. A transmission mechanism 2 is fixedly connected to the top of the outer shell 1. This mechanism, driven by power, breaks up the sludge in the sedimentation tank and transports it to the next component, achieving efficient transfer from the sludge accumulation point to the conveying channel. A transmission pipe 3 is fixedly connected to the outside of the outer shell 1, serving as the sludge transport path. This pipe continuously discharges the sludge processed by the transmission mechanism 2, ensuring the continuity of the dredging process. A docking mechanism 4 is slidably connected to the end of the transmission pipe 3 away from the outer shell 1. Through a flexible sliding and locking design, it can quickly and accurately seal with external pipes, reducing manual operation time and improving the response speed of dredging operations. A moving mechanism 5 is fixedly connected to the outside of the outer shell 1. Through a sliding support structure, this allows the device to move easily between different slopes or work points, adapting to the dredging needs of complex terrains and enhancing the device's environmental adaptability. A limiting mechanism 6 is fixedly connected to the outside of the transmission pipe 3. This mechanism uses a mechanical structure to limit the components... The motion trajectory ensures the accuracy and stability of the anti-adhesion operation. The limiting mechanism 6 includes a limiting shell 61, which provides a linear motion track for the parts and avoids deviation in the motion direction from affecting the anti-adhesion effect. One end of the limiting shell 61 is fixedly connected to the outside of the transmission pipe 3. It is driven by power to slide back and forth inside the limiting shell 61, which drives the anti-adhesion component 63 to periodically act on the transmission pipe 3. A sliding block 62 is slidably connected inside the limiting shell 61. Its other end is connected to the outside of the transmission pipe 3. It absorbs and releases energy through elastic deformation and quickly resets after the sliding block 62 completes the knocking, ensuring the high frequency and continuity of the anti-adhesion operation. A spring 64 is fixedly connected to the outside of the sliding block 62. The other end of the spring 64 is fixedly connected to the outside of the transmission pipe 3. The anti-adhesion component 63 is fixedly connected inside the sliding block 62. It generates a knocking action through power and acts on the outside of the transmission pipe 3. It uses vibration to destroy the adhesion between the sludge and the inner wall of the pipe, prevents the sludge from sticking and blocking, ensures unobstructed transmission, and improves sludge removal efficiency and device reliability. Specifically, the multi-stage sediment collection and automatic dredging device for slope runoff achieves efficient dredging through the coordinated operation of various mechanisms. The outer shell 1 serves as the main body, providing support and protection for the internal mechanisms. The moving mechanism 5, through a fixed ring 51, a bracket 52, a sliding rod 53, and a frame 54, allows the device to flexibly adapt to complex terrain and move to the work site. The docking mechanism 4, using a first limiting ring 41, a second limiting ring 45, and a connecting plate 42, achieves rapid and sealed docking with the external pipeline. The transmission mechanism 2, driven by a first motor 21, drives the auger conveyor 22 and the spiral disperser 23 to first break up the sludge and then transport it to the transmission pipeline 3. During transmission, the limiting mechanism 6 plays a role; the second motor 631 drives the sliding block 62 to slide back and forth within the limiting shell 61, causing the striking block 632 to strike the outside of the transmission pipeline 3 at high frequency. A spring 64 assists the sliding block 62 in resetting, and continuous vibration breaks down the adhesion of the sludge, preventing pipeline blockage and ensuring the sludge is smoothly discharged through the transmission pipeline 3, thus efficiently completing the entire dredging process.
[0020] The anti-adhesion component 63 includes a second motor 631, which is fixedly connected to the outer side of the sliding block 62. As a power source, it is fixed to the outer side of the sliding block 62 to provide a stable driving force for the tapping action, ensuring the continuous operation of the anti-adhesion function. The driving end of the second motor 631 is fixedly connected to the tapping block 632. By tapping the outer side of the transmission pipe 3 at high frequency, the vibration is transmitted to the inside of the pipe, effectively destroying the adhesion between the sludge and the pipe wall, preventing the sludge from sticking and accumulating, ensuring the smooth flow of the transmission pipe 3, and improving the stability and efficiency of the dredging operation.
[0021] Specifically, the working principle of the anti-adhesion component 63 is as follows: the second motor 631 is fixed on the outside of the sliding block 62, and serves as a power source to provide stable driving force for the knocking action. The knocking block 632 at its driving end knocks the outside of the transmission pipe 3 at a high frequency under the drive of the second motor 631. The vibration is transmitted to the inside of the pipe, which breaks the adhesion between the sludge and the pipe wall and prevents adhesion and accumulation. At the same time, the spring 64 on the outside of the sliding block 62 assists in its reset through elastic deformation, ensuring that the knocking action is carried out continuously at a high frequency, ensuring that the transmission pipe 3 is unobstructed, and improving the stability and efficiency of the sludge removal operation.
[0022] The transmission mechanism 2 includes a motor 21, which serves as the core power source to provide kinetic energy for the transmission operation. Through stable operation, it drives the subsequent components to work together, ensuring the power supply for the dredging process. The drive end of the motor 21 is fixedly connected to a auger transmission 22 to realize the directional transfer of sludge and ensure the continuity of the transmission process. The bottom of the auger transmission 22 is fixedly connected to a spiral disperser 23, which uses a spiral structure to break up the deposited and compacted sludge into a loose state, making it easier for subsequent transportation and avoiding blockage problems caused by sludge clumping, thereby improving the efficiency and smoothness of the dredging operation.
[0023] Specifically, motor 21 serves as the core power source, driving the auger conveyor 22 and the spiral disperser 23 to work together through stable operation. The spiral disperser 23 rotates synchronously with the auger conveyor 22, and its spiral structure breaks up the deposited and compacted sludge into a loose state, preventing clumping and blockage. The auger conveyor 22, driven by motor 21, generates a spiral pushing force, continuously transporting the broken sludge from inside the outer shell 1 to the transmission pipeline 3, realizing the directional transfer of sludge, ensuring the continuity of power supply and transmission in the dredging process, and improving operational efficiency and smoothness.
[0024] Reference Figure 2 and Figure 3 The docking mechanism 4 includes a first limiting ring 41, the bottom of which slides with the other parts, allowing the docking opening to open and close through relative sliding, facilitating pipe insertion and improving operational flexibility. The bottom of the first limiting ring 41 is slidably connected to the top of the second limiting ring 45. A connecting plate 42 is fixedly connected to the outside of the first limiting ring 41, and is bolted to the second limiting ring 45. When the two are in contact, the connecting plate 42 can be locked with fasteners, forming a circumferential seal on the pipe interface, ensuring sealing and stability after docking. The inside of the first limiting ring 41 has two placement grooves 43, the shape of which is adapted to the outer diameter of the pipe. The inserted pipe can be accurately positioned through the placement grooves 43, preventing displacement during docking and ensuring... To ensure the accuracy of the pipeline connection, the outer side of the limiting ring 41 is slidably connected to the outer side of the transmission pipeline 3, and can move along the axial direction of the transmission pipeline 3 to facilitate adjustment of the docking position and adapt to the distance requirements of different installation scenarios. The outer side of the limiting ring 41 is fixedly connected to the connecting block 44. Through the rigid connection of the connecting block 44, the limiting ring 41 and the limiting ring 45 form a linkage structure to ensure that the two move synchronously during the docking process and improve docking efficiency. The other end of the connecting block 44 is fixedly connected to the outer side of the limiting ring 45. The limiting ring 45 has two placement grooves 43 inside. Through the circumferential effect of the double ring placement grooves 43, the stability of the pipeline connection is enhanced, and loosening or leakage occurs during the sludge removal process. Specifically, the bottom of the first limiting ring 41 and the top of the second limiting ring 45 slide together, and the relatively sliding opening facilitates pipe insertion. The connecting plate 42 on the outside of the first limiting ring 41 and the second limiting ring 45 are locked with bolts, forming a ring-shaped seal when they fit together, ensuring the sealing and stability of the connection. The placement grooves 43 inside both rings are adapted to the outer diameter of the pipe, achieving precise positioning during insertion and avoiding displacement. The first limiting ring 41 can slide along the axis of the transmission pipe 3 to adjust the connection position to adapt to different installation distances. The connecting block 44 rigidly connects the first limiting ring 41 and the second limiting ring 45, forming a linkage structure to ensure synchronous action during connection. The double ring placement grooves 43 together clamp the pipe, and the ring-shaped action enhances the connection stability, preventing loosening or leakage during sludge removal and transmission, achieving fast, accurate, and sealed pipe connection, and improving the efficiency of sludge removal preparation.
[0025] The moving mechanism 5 includes a fixed ring 51, the inner side of which is fixedly connected to the outer side of the outer shell 1, forming the basic connection structure for the movement of the device. This provides a stable support base for the entire device, ensuring the integrity of each component during movement. The inner side of the fixed ring 51 is fixedly connected to the outer side of the outer shell 1. The triangularly distributed brackets 52 increase the support points between the device and the ground, improving the balance and stability during movement and adapting to different terrain slope environments. Three brackets 52 are fixedly connected to the outer side of the fixed ring 51. The bottom of each of the three brackets 52 is fixedly connected to a sliding rod 53, which can slide flexibly within the bracket 52. When the device moves on uneven ground, the sliding rod 53 buffers the ground bumps by telescoping, reducing device vibration and ensuring the safety of the internal mechanism. The end of the sliding rod 53 away from the bracket 52 is fixedly connected to a frame 54, which serves as the direct contact component between the device and the ground, providing support and guidance during movement. The operator can move the entire device by pushing the frame 54, enabling the device to easily reach different sedimentation tank locations and improving the mobility of dredging operations. Specifically, the mobile mechanism 5 achieves flexible movement of the device through the coordinated operation of its various components. The inner side of the fixed ring 51 is fixedly connected to the outer shell 1, forming a mobile base structure to ensure the integrity and stability of each component when the device moves. The three triangularly distributed supports 52 on its outer side increase the support points with the ground and enhance the balance of movement in different slope environments. The sliding rod 53 at the bottom of the support 52 can be flexibly extended and retracted. When moving on uneven ground, it reduces the vibration of the device by buffering the ground bumps and protects the internal mechanism. The frame 54, as the component in direct contact with the ground, provides support and plays a guiding role. The operator can push the frame 54 to move the entire device, enabling the device to quickly reach different work points and greatly improving the mobility and environmental adaptability of dredging operations.
[0026] Working principle: When the staff needs to clean the silt, the outer shell 1 can be moved to the position to be cleaned, and the pipe can be connected to the transmission pipe 3. At this time, the bolts inside the connecting plate 42 can be turned out, and the connecting plate 42 can be opened. Then the pipe can be placed into the placement groove 43 inside the second limiting ring 45. Then the first limiting ring 41 is turned back, and the first limiting ring 41 and the second limiting ring 45 are reinforced with bolts, thereby achieving the effect of quick connection of the transmission pipe 3.
[0027] At this point, motor 21 is started to drive the spiral disperser 23 and the auger conveyor 22. The spiral disperser 23 disperses the sludge, and the auger conveyor 22 transports the sludge into the transmission pipe 3. The sludge can then be transported out through the transmission pipe 3. Simultaneously, motor 631 is started to drive the striking block 632, causing it to strike the outside of the transmission pipe 3. When one end of the striking block 632 touches the outside of the transmission pipe 3, the force of motor 631 pushes the sliding block 62 backward, allowing it sufficient distance to rotate past the outside of the transmission pipe 3. When the striking block 632 leaves the outside of the transmission pipe 3, spring 64 pulls the sliding block 62 back to its original position, thus enabling the next strike.
[0028] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.
Claims
1. A multi-stage sediment collection and automatic dredging device for slope runoff, comprising a shell (1), characterized in that, A transmission mechanism (2) is fixedly connected to the top of the outer shell (1), a transmission pipe (3) is fixedly connected to the outside of the outer shell (1), a docking mechanism (4) is slidably connected to the end of the transmission pipe (3) away from the outer shell (1), a moving mechanism (5) is fixedly connected to the outside of the outer shell (1), and a limiting mechanism (6) is fixedly connected to the outside of the transmission pipe (3). The limiting mechanism (6) includes a limiting shell (61), one end of which is fixedly connected to the outside of the transmission pipe (3), and a sliding block (62) is slidably connected inside the limiting shell (61), and an anti-sticking component (63) is fixedly connected inside the sliding block (62).
2. The multi-stage sediment collection and automatic dredging device for slope runoff according to claim 1, characterized in that, The anti-sticking component (63) includes a second motor (631), the outer side of which is fixedly connected to the sliding block (62), and the driving end of the second motor (631) is fixedly connected to a striking block (632).
3. The multi-stage sediment collection and automatic dredging device for slope runoff according to claim 1, characterized in that, The transmission mechanism (2) includes a motor (21), the drive end of which is fixedly connected to a auger transmission (22), and the bottom of the auger transmission (22) is fixedly connected to a spiral scatterer (23).
4. The multi-stage sediment collection and automatic dredging device for slope runoff according to claim 1, characterized in that, The docking mechanism (4) includes a first limiting ring (41), the outer side of the first limiting ring (41) is slidably connected to the outer side of the transmission pipe (3), the outer side of the first limiting ring (41) is fixedly connected to a connecting block (44), and the other end of the connecting block (44) is fixedly connected to the outer side of a second limiting ring (45).
5. The multi-stage sediment collection and automatic dredging device for slope runoff according to claim 4, characterized in that, The second limiting ring (45) has two placement slots (43) inside, and the first limiting ring (41) has two placement slots (43) inside.
6. The multi-stage sediment collection and automatic dredging device for slope runoff according to claim 4, characterized in that, A connecting plate (42) is fixedly connected to the outer side of the first limiting ring (41), and the bottom of the first limiting ring (41) is slidably connected to the top of the second limiting ring (45).
7. The multi-stage sediment collection and automatic dredging device for slope runoff according to claim 1, characterized in that, A spring (64) is fixedly connected to the outside of the sliding block (62), and the other end of the spring (64) is fixedly connected to the outside of the transmission pipe (3).
8. The multi-stage sediment collection and automatic dredging device for slope runoff according to claim 1, characterized in that, The moving mechanism (5) includes a fixed ring (51), the inner side of which is fixedly connected to the outer side of the outer shell (1), and three supports (52) are fixedly connected to the outer side of the fixed ring (51). A sliding rod (53) is fixedly connected to the bottom of each of the three supports (52), and a frame (54) is fixedly connected to the end of the sliding rod (53) away from the support (52).