Drainage cut-off device

Abstract

The invention provides a drainage intercepting device, which relates to the technical field of water resource management, and comprises a culvert box, an intercepting mechanism, a chain scraper conveyor, a bucket and a transfer mechanism, the closure mechanism is mounted in the culvert box; a through opening is formed in the top of the culvert box, mounting plates are mounted on the two sides of the top of the through opening, the chain plate conveyor is mounted between the two mounting plates, the top end of the chain plate conveyor extends out of the culvert box, the chain plate conveyor blocks a channel of the culvert box, one side of the chain plate conveyor faces water, and the other side of the chain plate conveyor faces water. The multiple buckets are installed on chain plates of the chain plate conveyor respectively. And the transferring mechanism is used for transferring and receiving the solids excavated by the excavator bucket. The chain scraper conveyor drives the excavator buckets on the chain scraper conveyor to dig solid pollutants in water flow on the upstream side and then convey the solid pollutants to the downstream side, the transfer mechanism receives the solids falling from the excavator buckets, concentrated collection of the solids is completed, unified cleaning of the solid pollutants is facilitated, and the problem that the solids of a traditional drainage facility are scattered and difficult to clean is solved.

Description

Technical Field

[0001] This invention relates to the field of water resource management technology, specifically to a drainage interception device. Background Technology

[0002] With the continuous advancement of urbanization, urban drainage systems are undertaking increasingly heavy tasks in water flow regulation and water environment protection. Especially against the backdrop of frequent extreme weather events such as rainstorms and heavy rainfall, the operational efficiency and environmental adaptability of drainage systems have become key considerations in municipal infrastructure construction. Traditional drainage facilities, as the core carriers of urban water discharge, mainly include weirs, gate wells, drainage pipe networks, and simple interception structures. Their design focuses on water transport and basic interception functions, making it difficult to meet the diverse needs of current ecological drainage.

[0003] Existing traditional drainage facilities generally lack effective solid-liquid separation mechanisms. Solid pollutants such as dead branches, leaves, and plastic bags carried by urban surface runoff and natural precipitation are directly discharged into rivers and ditches through drainage facilities. These solid pollutants tend to accumulate in river shallows, ditch bends, and at the inlets and outlets of water conservancy facilities, causing narrowing and siltation of water flow channels, significantly reducing flood control and drainage capacity, and exacerbating the risk of urban flooding under extreme weather conditions. Furthermore, the long-term soaking and decay of organic solids such as dead branches and fallen leaves consumes dissolved oxygen in the water, produces odors and harmful pollutants, leading to water quality deterioration and damaging aquatic habitats and ecological balance.

[0004] Therefore, there is an urgent need to propose a drainage interception device to achieve efficient separation of water flow and solid pollutants, reduce damage to rivers and ditches, and improve the ecological benefits and overall operational reliability of the drainage system. Summary of the Invention

[0005] In view of the shortcomings of existing technologies, this invention proposes a drainage interception device to solve the problem that current traditional drainage devices cannot separate solid pollutants such as dead branches and leaves from the discharged water flow.

[0006] The objective of this invention is achieved through the following technical solution: The present invention provides a drainage interception device, comprising a culvert box, an interception mechanism, a chain conveyor, a bucket, and a transfer mechanism; The interception mechanism is installed inside the culvert box to block or divert water flow; The culvert box has an opening at one top, and mounting plates are installed on both sides of the top of the opening. The chain conveyor is installed between the two mounting plates and extends out of the culvert box at its top. The chain conveyor blocks the passage of the culvert box, with one side facing the water and the other side facing away from the water. The multiple buckets are respectively installed on each chain plate of the chain conveyor; The transfer mechanism is used to transfer and receive solid materials excavated by the bucket.

[0007] Furthermore, the flow-stopping mechanism includes a hydraulic cylinder and a flow-stopping plate. The top end of the flow-stopping plate is hinged to the inner top wall of the culvert box, one end of the hydraulic cylinder is hinged to the inner top wall of the culvert box, and the other end is hinged to the flow-stopping plate.

[0008] Furthermore, the transfer mechanism includes an inclined platform and a collection bin. The chain conveyor is inclined so that its top is biased towards the backwater side. The collection bin is installed on one side of the culvert box. The inclined platform is installed on the top of the culvert box and located below the backwater side of the chain conveyor. The lower end of the inclined platform extends above the collection bin.

[0009] Furthermore, the bucket includes a back plate, side plates, and a bottom plate. The back plate is installed on the surface of the chain conveyor and side plates are installed on both sides. Each back plate and chain conveyor has a second drain outlet. The bottom plate is located on the bottom side of the back plate and installed between the two side plates. The top surface of the bottom plate is provided with a receiving groove, and the receiving groove has a first drain outlet. When the bucket is located on the water-facing side of the chain conveyor, the top surface of the bottom plate will face upward.

[0010] Furthermore, the base plate is slidably mounted between the two side plates in a direction close to or away from the back plate. An elastic element is connected between the base plate and the side plates to provide an elastic force that pulls the base plate toward the back plate. Side levers are respectively provided on both sides of the bottom of the base plate. Wave track bars are respectively provided on the inner sides of the two mounting plates. The wave track bars are located on the water-facing side of the chain conveyor and are parallel to the water-facing side. When any of the buckets passes through the water-facing side, the side lever on the bucket can abut against the top surface of the path passing through the wave track bars.

[0011] Furthermore, a gap-blocking strip is installed on the front side of the back plate, and the gap-blocking strip abuts against the top surface of the bottom plate.

[0012] Furthermore, it also includes a gripping mechanism and a driving component. Each gripping mechanism is installed in each bucket. The gripping mechanism includes a rotating rod and a rack. The two ends of the rotating rod are rotatably connected to two side plates respectively. Multiple claws are evenly distributed on the rotating rod. A gear is installed on the rotating rod. The rack slides through the back plate and meshes with the gear. The driving component is connected to the rack of each gripping mechanism. When the bucket is located on the water-facing side of the chain conveyor, the driving component can drive the rack to move to drive the claws to rotate and approach the back plate. When the bucket is located on the back side, the driving component can drive the rack to move in the opposite direction to drive the claws to rotate and approach the bottom plate.

[0013] Furthermore, a connecting plate is installed at one end of the rack located inside the chain conveyor, and a sliding pin is installed on the connecting plate. The driving component includes a base plate, which is located inside the chain conveyor and fixedly connected to the mounting plate. A closed-loop track groove is formed on the base plate along the conveying trajectory of the chain conveyor. The closed-loop track groove allows each sliding pin to slide. The closed-loop track groove includes a first track section and a second track section. The first track section is located on the water-facing side of the chain conveyor, and the second track section is located on the water-repellent side. The distance from the first track section to the chain plate is different from the distance from the second track section to the chain plate. The first track section and the second track section are connected end to end and the connection is smoothly transitioned.

[0014] Furthermore, it also includes a cleaning mechanism, which includes an air cylinder and an exhaust pipe. Multiple exhaust pipes are installed at the bottom of the receiving trough, and each exhaust pipe has an exhaust port. The air cylinder is installed on the back of the back plate. One end of the air cylinder is connected to the exhaust pipe through a hose, and the other end is fitted with a piston rod, which is connected to the connecting plate on the bucket.

[0015] Furthermore, a first one-way valve is installed at the connection between the exhaust pipe and the air cylinder, which only allows gas to exit the air cylinder, and a second one-way valve is installed on the air cylinder, which only allows gas to enter the air cylinder.

[0016] As can be seen from the above technical solution, the present invention provides a drainage interception device: 1. After the chain conveyor starts, it runs in the preset direction, driving the bucket on it to dig out solid pollutants in the water flow on the water-facing side and then transport them to the back water side. The transfer mechanism receives the solids falling from the bucket, completing the centralized collection of solids. The centralized receiving method of the collection bin facilitates the unified cleaning and subsequent disposal of solid pollutants, avoids secondary pollution of solids, improves the operation and maintenance convenience of the device, and solves the problem of scattered and difficult-to-clean solids in traditional drainage facilities. 2. When the bucket moves to the water-facing side with the chain conveyor, the side lever abuts against the corrugated track. As the chain conveyor moves, the side lever moves along the high-frequency undulating trajectory of the corrugated track, causing the bottom plate to slide back and forth quickly against the tension of the elastic element, forming continuous vibration. This vibration can promptly shake off solid particles attached to the first and second drain outlets, preventing solids from accumulating and clogging the drain outlets, ensuring that the drain outlets are always unobstructed. Unobstructed drain outlets allow water in the receiving trough to drain quickly, and the vibration can also assist the water flow, further improving drainage efficiency. 3. When the bucket is located on the water-facing side of the chain conveyor, the drive unit drives the rack to move, which in turn drives the rotating rod to rotate, causing the hook to rotate to a position close to the back plate. This allows the solid material to be clamped between the hook and the back plate. As the bucket moves upward with the chain conveyor and gradually leaves the water flow, the hook remains in a clamping state, firmly fixing the solid material in the receiving trough. This prevents the solid material from falling into the water due to water erosion. Furthermore, when the bucket passes through the corrugated track and the bottom plate vibrates at high frequency, the clamping action of the hook can counteract the vibration, preventing the solid material from falling off due to vibration. This helps improve the solid-liquid separation efficiency and ensures that the solid material in the bucket is stably retained. 4. When the connecting plate moves the rack, it can synchronously drive the piston rod to reciprocate inside the air cylinder. When the bucket transitions from the back water side to the front water side, the piston rod is pulled to allow the air cylinder to draw in external gas to prepare for purging. When the bucket transitions from the front water side to the back water side, the piston rod is driven by the connecting plate to compress the gas in the air cylinder, causing the gas to be ejected through the exhaust port on the exhaust pipe. This purifies the small solids remaining attached to the bottom of the receiving tank, blowing the remaining solids away from the bucket. The blown-away solids fall onto the inclined platform below. No additional power source is required, achieving automatic cleaning of the bucket, preventing residual solids from returning to the discharged water flow, and preventing the leakage outlet from clogging. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the main structural schematic diagram of the present invention; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a three-dimensional structural diagram of the chain conveyor in this invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the bucket in this invention. Figure 1 ; Figure 6 This is a schematic diagram of the three-dimensional structure of the bucket in this invention. Figure 2 ; Figure 7 This is a cross-sectional view of the side view of the bucket structure in this invention; Figure label: Culvert box 1, opening 11, mounting plate 12, corrugated track 121, guide section 1211; Flow control mechanism 2, hydraulic cylinder 21, flow control plate 22; Chain conveyor 3; Bucket 4, back plate 41, second drain outlet 411, gap strip 412, side plate 42, elastic element 421, slide groove 422, first support block 423, bottom plate 43, receiving groove 431, first drain outlet 432, side lever 433, slide bar 434, second support block 435. Transfer mechanism 5, inclined platform 51, collection bin 52; The gripping mechanism 6, rotating rod 61, hook 611, gear 612, rack 62, connecting plate 63, and sliding pin 631; Drive unit 7, substrate 71, closed-loop track groove 711, first track section 7111, second track section 7112; Cleaning mechanism 8, air cylinder 81, piston column 811, hose 812, first check valve 813, second check valve 814, exhaust pipe 82, exhaust port 821. Detailed Implementation

[0019] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0020] like Figure 1-7 As shown, this embodiment provides a drainage interception device, including a culvert box 1, an interception mechanism 2, a chain conveyor 3, a bucket 4, and a transfer mechanism 5.

[0021] The culvert box 1 serves as the core installation carrier, and its dimensions can be adapted to the actual drainage channel specifications to ensure seamless integration with the existing drainage system.

[0022] The interception mechanism 2 is installed inside the culvert box 1 to block or divert water flow.

[0023] Specifically, the interception mechanism 2 includes a hydraulic cylinder 21 and an interception plate 22. The top of the interception plate 22 is hinged to the inner top wall of the culvert box 1. The size of the interception plate 22 is adapted to the width of the internal channel of the culvert box 1 to ensure that the water flow channel can be completely blocked when closed. One end of the hydraulic cylinder 21 is hinged to the inner top wall of the culvert box 1, and the other end is hinged to the interception plate 22. When encountering extreme weather such as heavy rain and needing rapid drainage, the hydraulic cylinder 21 is controlled to fully open the interception plate 22 to ensure that the water flows quickly through the culvert box 1 and avoids urban flooding. When it is necessary to stop drainage or completely intercept the flow, the hydraulic cylinder 21 is controlled to close the interception plate 22 to block the water flow.

[0024] It is important to note that a control box can be installed on the ground, housing the control system and hydraulic station to control the hydraulic cylinder 21, reducing manual intervention and improving the system's response speed and reliability. The control box can be powered by solar panels, reducing dependence on external power and lowering energy costs.

[0025] A passage 11 is provided on the top of the culvert box 1. Mounting plates 12 are installed on both sides of the top of the passage 11. The chain conveyor 3 is installed between the two mounting plates 12 and its top protrudes outside the culvert box 1. The size of the passage 11 matches that of the chain conveyor 3. The chain conveyor 3 blocks the passage of the culvert box 1, with one side facing the water (towards the direction of the incoming water flow) and the other side facing away from the water (away from the direction of the incoming water flow). The side of the chain conveyor 3 facing the water is the water-facing side, and the side facing away from the water is the water-repelling side.

[0026] Multiple buckets 4 are installed on each chain plate of the chain conveyor 3 to ensure comprehensive coverage and interception of solid objects in the water flow channel.

[0027] Specifically, the bucket 4 includes a back plate 41, side plates 42, and a bottom plate 43. The back plate 41 is installed on the surface of the chain plate of the chain conveyor 3, and side plates 42 are installed on both sides. Each back plate 41 and the chain plate of the chain conveyor 3 has a second drain outlet 411 to form a through drainage channel. The bottom plate 43 is located on the bottom side of the back plate 41 and is installed between the two side plates 42. The top surface of the bottom plate 43 is provided with a receiving groove 431 for containing solid pollutants, and the receiving groove 431 has a first drain outlet 432. The first drain outlet 432 and the second drain outlet 411 can ensure that water can be discharged in time when the bucket 4 digs up solids. When the bucket 4 is located on the water-facing side of the chain conveyor 3, the top surface of the bottom plate 43 will face upward to receive solids. When the bucket 4 moves to the water-facing side with the chain conveyor 3, the top surface of the bottom plate 43 faces upwards, and the receiving groove 431 faces the direction of the incoming water flow. When the water flow carries solid materials through the bucket 4, the solid materials are intercepted and fall into the receiving groove 431. The water flow is then quickly discharged through the first drain port 432 and the second drain port 411. The bucket 4, carrying solid materials, moves with the chain conveyor 3 to the back-water side until it is transported to the top, completing the solid material transfer. The first drain port 432 and the second drain port 411 achieve instant solid-liquid separation during the digging process, reducing the load on the bucket 4, lowering the operating energy consumption of the chain conveyor 3, and preventing the water flow from carrying solid materials backflow, thus improving the solid material interception efficiency and solving the problems of poor drainage and excessive load in traditional bucket-type structures.

[0028] like Figure 2 and Figure 3As shown, preferably, the bottom of the water flow channel of the culvert box 1 is provided with a recessed area, the bottom end of the chain conveyor 3 is recessed into the recessed area, and the recessed area is arc-shaped, which is adapted to the movement trajectory of the outermost end of the bucket 4. When the bucket 4 is in the recessed area, it can be adjacent to the inner wall of the recessed area. Furthermore, the interval between two adjacent buckets 4 should be controlled within the arc-shaped path length of the recessed area, so that when one bucket 4 leaves the recessed area, the next bucket 4 can enter the recessed area, avoiding gaps that would cause solid materials to flow away.

[0029] The transfer mechanism 5 is used to transfer and receive the solid material excavated by the bucket 4, ensuring that the solid material can be transferred and received smoothly.

[0030] Specifically, the transfer mechanism 5 includes an inclined platform 51 and a collection bin 52. The chain conveyor 3 is inclined so that its top is biased towards the backwater side. Its lower end is located in the water flow channel inside the culvert box 1, and its upper end passes through the opening 11 and extends out of the culvert box 1 and is biased towards the backwater side, ensuring that the bucket 4 can dig solids from the water and smoothly transport them upward. The collection bin 52 is installed on one side of the culvert box 1, and the inclined platform 51 is installed on the top of the culvert box 1 and located below the backwater side of the chain conveyor 3. The lower end of the inclined platform 51 extends above the collection bin 52, ensuring that solids can fall accurately into the collection bin 52. When the chain conveyor 3 moves the bucket 4 to the top, the bucket 4 flips as the chain conveyor 3 runs. The solid material inside the bucket slides off the bucket 4 under the action of gravity onto the inclined platform 51. The solid material slides along the inclined surface of the inclined platform 51 and finally falls into the collection bin 52 below. When the solid material in the collection bin 52 accumulates to a certain amount, the solid material in the collection bin 52 can be removed and processed uniformly.

[0031] The culvert box 1 serves as the foundation for the water flow and the various components, receiving water from the drainage channel. Through the opening and closing of the intercepting mechanism 2, it can block the water flow for interception operations or guide the water flow for normal drainage, depending on actual needs. After the chain conveyor 3 starts, it runs in a preset direction, driving the bucket 4 on it to dig out solid pollutants from the water flow on the upstream side and then transport them to the downstream side. The transfer mechanism 5 receives the solids falling from the bucket 4, completing the centralized collection of solids. The centralized collection method of the collection bin 52 facilitates the unified cleaning and subsequent disposal of solid pollutants, avoids secondary pollution from solids, improves the convenience of operation and maintenance of the device, and solves the problem of scattered and difficult-to-clean solids in traditional drainage facilities.

[0032] This invention solves the problem of traditional drainage facilities lacking an effective overall design for solid-liquid separation. The baffle-type installation of the chain conveyor 3 achieves full coverage of the water flow channel, preventing side leakage of solid pollutants. The linkage between the bucket 4 and the chain conveyor 3 enables continuous excavation of solid materials, while the transfer mechanism 5 completes centralized collection, forming a complete "interception-excavation-transfer" operation process. This comprehensively avoids the problems of siltation and water quality deterioration caused by the direct discharge of solid pollutants into natural water bodies.

[0033] In one embodiment, the base plate 43 is slidably mounted between two side plates 42 in a direction close to or away from the back plate 41. An elastic element 421 is connected between the base plate 43 and the side plates 42. The elastic element 421 may be a spring to provide an elastic force to pull the base plate 43 toward the back plate 41, ensuring that the base plate 43 can return to a state close to the back plate 41 when no external force is applied. Side levers 433 are respectively provided on both sides of the bottom of the base plate 43. Wave track bars 121 are respectively provided on the inner side of the two mounting plates 12. The wave track bars 121 are located on the water-facing side of the chain conveyor 3 and are parallel to the water-facing side. When any bucket 4 passes through the water-facing side, the side lever 433 on the bucket 4 can abut against the top surface of the path passing through the wave track bars 121. When the bucket 4 moves to the water-facing side with the chain conveyor 3, the side lever 433 abuts against the corrugated track 121. As the chain conveyor 3 moves, the side lever 433 moves along the high-frequency undulating trajectory of the corrugated track 121, causing the bottom plate 43 to slide back and forth rapidly against the tension of the elastic element 421, forming continuous vibration. This vibration can promptly shake off solid particles attached to the first drain 432 and the second drain 411, preventing solids from accumulating and clogging the drains, ensuring that the drains remain unobstructed. The unobstructed drains allow water in the receiving trough 431 to drain quickly, and the vibration also assists the water flow, further improving drainage efficiency. When the bucket 4 leaves the water-facing side, the side lever 433 disengages from the corrugated track 121, and the bottom plate 43 quickly resets under the tension of the elastic element 421, restoring the receiving trough 431 to its normal receiving state.

[0034] Specifically, both side plates 42 have grooves 422 on their inner sides, and the bottom plate 43 has sliders 434 on both sides that are adapted to the grooves 422. When the side lever 433 drives the bottom plate 43 to vibrate by high-frequency reciprocating sliding, the sliders 434 slide synchronously along the grooves 422, providing precise guidance and stable support for the vibration movement of the bottom plate 43, ensuring that the bottom plate 43 reciprocates in a preset direction.

[0035] Specifically, each of the two side plates 42 has a first support block 423 on its bottom side, and the bottom of the base plate 43 has a second support block 435 on each side. An elastic element 421 connects the second support block 435 to the corresponding first support block 423. The first support block 423 and the second support block 435 provide stable mounting support points for the elastic element 421, ensuring that the elastic force can be transmitted evenly and accurately to the base plate 43, so that the reciprocating frequency of the base plate 43 is consistent and the vibration effect is stable.

[0036] Preferably, both ends of the corrugated track 121 are provided with guide sections 1211 extending in the direction of the chain conveyor 3. When the bucket 4 is about to pass the corrugated track 121, the side lever 433 first contacts the guide section 1211 at one end of the corrugated track 121. Under the gentle guiding action of the guide section 1211, the side lever 433 smoothly slides into the undulating part of the main body of the corrugated track 121, realizing a smooth transition from the vibration state of the bottom plate 43.

[0037] Preferably, a gap-blocking strip 412 is installed on the front of the back plate 41, and the gap-blocking strip 412 abuts against the top surface of the bottom plate 43. During the high-frequency vibration anti-clogging and drainage process of the bottom plate 43, the gap-blocking strip 412 always abuts against the top surface of the bottom plate 43 to prevent fine solid objects such as mud, sand, and broken leaves from leaking out from the gap between the back plate 41 and the bottom plate 43.

[0038] In one embodiment, the device further includes a gripping mechanism 6 and a driving member 7. One gripping mechanism 6 is provided in each bucket 4. The gripping mechanism 6 includes a rotating rod 61 and a rack 62. The two ends of the rotating rod 61 are rotatably connected to two side plates 42 respectively. Multiple claws 611 are evenly distributed on the rotating rod 61. A gear 612 is provided on the rotating rod 61. The rack 62 slides through the back plate 41 and meshes with the gear 612. The driving member 7 is connected to the rack 62 of each gripping mechanism 6. When the bucket 4 is located on the water-facing side of the chain conveyor 3, the driving member 7 can drive the rack 62 to move to drive the claws 611 to rotate and approach the back plate 41. When the bucket 4 is located on the back side, the driving member 7 can drive the rack 62 to move in the opposite direction to drive the claws 611 to rotate and approach the bottom plate 43. When the bucket 4 is located on the water-facing side of the chain conveyor 3, the drive unit 7 drives the rack 62 to move, which in turn drives the rotating rod 61 to rotate through the gear 612. This causes the hook 611 to rotate to a position close to the back plate 41, so that the solid material is clamped between the hook 611 and the back plate 41. As the bucket 4 moves upward with the chain conveyor 3 and gradually leaves the water flow, the hook 611 remains in a clamping state, firmly fixing the solid material in the receiving groove 431. This prevents the solid material from falling into the water due to water erosion. Furthermore, when the bucket 4 passes through the wave track 121 and the bottom plate 43 vibrates at high frequency, the clamping action of the hook 611 can counteract the vibration effect, preventing the solid material from falling off due to vibration. This is beneficial to improving the solid-liquid separation efficiency and ensuring that the solid material in the bucket 4 is stably retained. When the bucket 4 moves to the backwater side of the chain conveyor 3 to prepare to transfer the solid, the drive unit 7 drives the rack 62 to move again, causing the hook 611 to release, and the solid will fall onto the inclined platform 51 under the action of gravity.

[0039] Specifically, a connecting plate 63 is installed at one end of the rack 62 located inside the chain conveyor 3. A sliding pin 631 is installed on the connecting plate 63. The drive component 7 includes a base plate 71, which is located inside the chain conveyor 3 and fixedly connected to the mounting plate 12. A closed-loop track groove 711 is formed on the base plate 71 along the conveying trajectory of the chain conveyor 3. The closed-loop track groove 711 allows each sliding pin 631 to slide. The closed-loop track groove 711 includes a first track section 7111 and a second track section 7112. The first track section 7111 is located inside the chain conveyor 3. On the water-facing side of the chain conveyor 3, the second track section 7112 is located on the back side. The distance from the first track section 7111 to the chain plate is different from the distance from the second track section 7112 to the chain plate. The first track section 7111 is adapted to the clamping state when the hook 611 is close to the back plate 41, and the second track section 7112 is adapted to the loosening state when the hook 611 is close to the bottom plate 43. The first track section 7111 and the second track section 7112 are connected end to end and the connection is smoothly transitioned to adapt to the transition between the clamping and loosening states of the hook 611. When the bucket 4 moves to the water-facing side with the chain conveyor 3, the sliding pin 631 on the connecting plate 63 slides along the first track section 7111 of the closed-loop track groove 711, driving the rack 62 to move in a preset direction, thereby driving the hook 611 to approach the back plate 41 and clamp the solid object; when the bucket 4 moves away from the water-facing side to the back-water side, the sliding pin 631 slides through the transition section of the closed-loop track groove 711 to the second track section 7112, driving the rack 62 to move in the opposite direction, causing the hook 611 to switch to the released state; when the sliding pin 631 returns to the first track section 7111 along the other transition section of the closed-loop track groove 711, the next cycle of operation begins. By utilizing the running trajectory of the chain conveyor 3 itself, the movement of the hook 611 can be controlled without an additional independent power source, allowing the hook 611 to adapt to the state of clamping on the water-facing side and releasing on the back-water side.

[0040] Preferably, there are two substrates 71, which are symmetrically arranged at intervals. Each sliding pin 631 is located between the two substrates 71, and both ends of the sliding pin 631 are slidably connected to two closed-loop track grooves 711. The symmetrically arranged substrates 71 and closed-loop track grooves 711 provide bidirectional support and guidance for the sliding pins 631, ensuring that the sliding pins 631 are subjected to balanced forces during sliding, avoiding tilting, jamming or falling off, and improving the operational stability and reliability of the drive component 7.

[0041] Preferably, gears 612 are installed at both ends of the rotating rod 61, each gear 612 meshing with a rack 62, and the rack 62 is in contact with the inner side of the corresponding side plate 42. The ends of both racks 62 pass through the back plate 41 and are connected to the connecting plate 63. The two racks 62 drive the rotating rod 61 to rotate smoothly through the gears 612 at both ends, so that the force on both ends of the rotating rod 61 is balanced, avoiding the skewing, jamming or uneven wear of the rotating rod 61 caused by unilateral transmission, ensuring that the hook 611 rotates smoothly and the clamping force is uniform, and can reliably fix solid objects with large volume or irregular shape.

[0042] Preferably, the rotating rod 61 is parallel to the back plate 41 and there is a gap between them. When the hook 611 rotates to the clamping state, the gap between the rotating rod 61 and the back plate 41 can form a certain clamping space between the hook 611 and the back plate 41, thereby increasing the clamping capacity of the solid object.

[0043] Furthermore, the side of the hook 611 near the back plate 41 is concave in an arc shape. When the hook 611 clamps a solid object, it forms a wrapping clamp, which enhances the fixing effect on the solid object. Especially for round or irregularly shaped solid objects, it can effectively prevent them from sliding off.

[0044] In one embodiment, a cleaning mechanism 8 is also included. The cleaning mechanism 8 includes an air cylinder 81 and an exhaust pipe 82. Multiple exhaust pipes 82 are installed at the bottom of the receiving groove 431. Each exhaust pipe 82 has an exhaust port 821. The air cylinder 81 is installed on the back of the back plate 41. One end of the air cylinder 81 is connected to the exhaust pipe 82, and the other end is provided with a piston rod 811. The piston rod 811 is connected to the connecting plate 63 on the bucket 4. When the connecting plate 63 moves the rack 62, it can synchronously drive the piston rod 811 to reciprocate in the air cylinder 81. When the bucket 4 transitions from the back water side to the front water side, the piston rod 811 is pulled out to allow the air cylinder 81 to draw in external gas to prepare for purging. When the bucket transitions from the front water side to the back water side, the piston rod 811 is driven by the connecting plate 63 to compress the gas in the air cylinder 81, so that the gas is sprayed out through the exhaust port 821 on the exhaust pipe 82 to purge the small solids attached to the bottom of the receiving groove 431. The residual solids are blown away from the bucket 4, and the blown-away solids fall onto the inclined platform 51 below. Without the need for an additional power source, the bucket 4 is automatically cleaned, preventing residual solids from returning to the discharged water flow and preventing the leakage outlet from being blocked.

[0045] It should be noted that a first one-way valve 813 is installed at the connection between the exhaust pipe 82 and the air cylinder 81. The first one-way valve 813 only allows gas to be discharged from the air cylinder 81. A second one-way valve 814 is installed on the air cylinder 81. The second one-way valve 814 only allows gas to enter the air cylinder 81. Thus, when the air cylinder 81 is drawing in air, solid matter in the receiving groove 431 can be prevented from entering the air cylinder 81.

[0046] Preferably, each exhaust pipe 82 is arranged at a uniform interval, and both ends of the exhaust pipe 82 extend to both sides of the receiving groove 431 to ensure that every part of the receiving groove 431 can be blown and covered.

[0047] Furthermore, the exhaust pipe 82 is provided with multiple exhaust ports 821, and the exhaust ports 821 are distributed on both sides of the exhaust pipe 82 close to the bottom of the receiving groove 431. Gas can be sprayed from both sides of the exhaust pipe 82 to the bottom of the receiving groove 431, forming a bidirectional airflow, which generates a uniform purging force on the solid matter remaining at the bottom of the groove and the impurities around the leak.

[0048] It should be noted that the exhaust pipe 82 and the air cylinder 81 are connected by a hose 812. The length of the hose 812 is longer than the distance between the exhaust pipe 82 and the air cylinder 81. This allows for sufficient space to move when the base plate 43 vibrates back and forth, preventing the hose 812 from being pulled and broken.

[0049] Preferably, multiple air cylinders 81 are installed, with each exhaust pipe 82 connected to one air cylinder 81, and the piston column 811 of each air cylinder 81 is connected to the connecting plate 63. The arrangement of multiple air cylinders 81 increases the total air supply pressure and gas flow of the cleaning mechanism 8, ensuring that each exhaust pipe 82 receives sufficient gas, enhancing the purging force, and providing better cleaning effect, especially for stubborn residual solids.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A drainage interception device, characterized in that, Includes culvert boxes, interception mechanisms, chain conveyors, buckets, and transfer mechanisms; The interception mechanism is installed inside the culvert box to block or divert water flow; The culvert box has an opening at one top, and mounting plates are installed on both sides of the top of the opening. The chain conveyor is installed between the two mounting plates and extends out of the culvert box at its top. The chain conveyor blocks the passage of the culvert box, with one side facing the water and the other side facing away from the water. The multiple buckets are respectively installed on each chain plate of the chain conveyor; The bucket includes a back plate, side plates, and a bottom plate. The back plate is installed on the surface of the chain conveyor and side plates are installed on both sides. Each back plate and chain conveyor has a second drain outlet. The bottom plate is located on the bottom side of the back plate and installed between the two side plates. The top surface of the bottom plate is provided with a receiving groove and a first drain outlet. When the bucket is located on the water-facing side of the chain conveyor, the top surface of the bottom plate will face upward. The transfer mechanism is used to transfer and receive solid materials excavated by the bucket; It also includes a gripping mechanism and a drive unit. Each gripping mechanism is provided in each bucket. The gripping mechanism includes a rotating rod and a rack. The two ends of the rotating rod are rotatably connected to two side plates respectively. Multiple claws are evenly distributed on the rotating rod. A gear is provided on the rotating rod. The rack slides through the back plate and meshes with the gear. The drive unit is connected to the rack of each gripping mechanism. When the bucket is located on the water-facing side of the chain conveyor, the drive unit can drive the rack to move to drive the claws to rotate and approach the back plate. When the bucket is located on the back side, the drive unit can drive the rack to move in the opposite direction to drive the claws to rotate and approach the bottom plate. A connecting plate is installed at one end of the rack located inside the chain conveyor. A sliding pin is installed on the connecting plate. The driving component includes a base plate, which is located inside the chain conveyor and fixedly connected to the mounting plate. A closed-loop track groove is formed on the base plate along the conveying trajectory of the chain conveyor. The closed-loop track groove allows each sliding pin to slide. The closed-loop track groove includes a first track section and a second track section. The first track section is located on the water-facing side of the chain conveyor, and the second track section is located on the water-repellent side. The distance from the first track section to the chain plate is different from the distance from the second track section to the chain plate. The first track section and the second track section are connected end to end and the connection is smoothly transitioned.

2. The drainage interception device according to claim 1, characterized in that, The flow-stopping mechanism includes a hydraulic cylinder and a flow-stopping plate. The top end of the flow-stopping plate is hinged to the inner top wall of the culvert box. One end of the hydraulic cylinder is hinged to the inner top wall of the culvert box, and the other end is hinged to the flow-stopping plate.

3. The drainage interception device according to claim 1, characterized in that, The transfer mechanism includes an inclined platform and a collection bin. The chain conveyor is inclined so that its top is biased towards the backwater side. The collection bin is installed on one side of the culvert box. The inclined platform is installed on the top of the culvert box and located below the backwater side of the chain conveyor. The lower end of the inclined platform extends above the collection bin.

4. A drainage interception device according to claim 1, characterized in that, The base plate is slidably mounted between the two side plates in a direction close to or away from the back plate. An elastic element is connected between the base plate and the side plates to provide an elastic force that pulls the base plate toward the back plate. Side levers are respectively provided on both sides of the bottom of the base plate. Wave track bars are respectively provided on the inner sides of the two mounting plates. The wave track bars are located on the water-facing side of the chain conveyor and are parallel to the water-facing side. When any of the buckets passes through the water-facing side, the side lever on the bucket can abut against the top surface of the path passing through the wave track bar.

5. A drainage interception device according to claim 4, characterized in that, A gap-blocking strip is installed on the front of the back plate, and the gap-blocking strip abuts against the top surface of the bottom plate.

6. A drainage interception device according to claim 1, characterized in that, It also includes a cleaning mechanism, which includes an air cylinder and an exhaust pipe. Multiple exhaust pipes are installed at the bottom of the receiving trough, and each exhaust pipe has an exhaust port. The air cylinder is installed on the back of the back plate. One end of the air cylinder is connected to the exhaust pipe through a hose, and the other end is fitted with a piston rod. The piston rod is connected to the connecting plate on the bucket.

7. A drainage interception device according to claim 6, characterized in that, A first one-way valve is installed at the connection between the exhaust pipe and the air cylinder. The first one-way valve only allows gas to exit the air cylinder. A second one-way valve is installed on the air cylinder. The second one-way valve only allows gas to enter the air cylinder.

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