Interceptable and fishable drainage facility
By introducing a spindle-shaped sedimentation tank and interception cage structure into the drainage system, combined with a pulley elevator, the problem of drainage ditch blockage in aggregate plants was solved, achieving efficient dredging and smooth system operation, and reducing the difficulty and cost of manual cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI CONCH DESIGN & RES INST OF BUILDING MATERIALS CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-28
AI Technical Summary
During the production process at aggregate plants, materials such as mud, sand, and gravel are spilled into drainage ditches during transportation, causing blockages. Existing dredging methods are inefficient and cannot effectively remove the blockages, thus affecting the smooth operation of the drainage system.
Design a drainage system that includes a spindle-shaped sedimentation tank and an interception cage. The interception cage consists of an outer cage and an inner liner. The outer cage is hollow with an open top to face the water, while the inner liner is open on the vertical sides and has an open top. Combined with a pulley lifter, the inner liner can be lifted and cleaned with minimal effort.
It effectively settles silt, reduces drainage system blockage, improves dredging efficiency, and reduces the risk of water accumulation caused by blockage. It has a simple structure, is easy to operate, adapts to various sites, and has a concealed and beautiful appearance.
Smart Images

Figure CN224565385U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering construction technology, specifically to a drainage facility that can intercept and retrieve wastewater. Background Technology
[0002] Aggregate plant production involves multiple stages, including raw material mining, crushing and screening, shaping and sand making, as well as storage and shipping. Strict control over process flow, equipment management, and safety and environmental protection requirements is essential. However, during aggregate plant operations, spillage of aggregates and powders during material transportation and truck transport is unavoidable. When cleaning roads within the plant, this aggregate and sediment can flow into roadside drainage ditches. Over time, the sediment and gravel solidify at the bottom of the ditches, reducing their effective flow height and easily causing blockages. Furthermore, the drainage ditches along branch roads within the plant area are often designed to be narrow, making it impossible to use large machinery for dredging. Manual dredging is labor-intensive and time-consuming, with a cleaning speed far slower than the rate of sediment accumulation, resulting in extremely low dredging efficiency for the plant's drainage ditches. Utility Model Content
[0003] The purpose of this invention is to overcome the problem that existing ordinary drainage systems are not capable of clearing silt, gravel, and debris, which easily leads to drainage blockage. This invention provides a drainage facility that can intercept and retrieve silt. This drainage facility has a simple structure and is easy to operate. It can effectively settle and filter silt and floating objects, improve silt removal efficiency, reduce the probability of drainage system blockage, and greatly reduce the possibility of upstream flooding caused by drainage system blockage.
[0004] To achieve the above objectives, this utility model provides a drainage facility capable of intercepting and retrieving sediment. This facility includes a spindle-shaped sedimentation tank installed on a drainage channel. An interception cage is installed inside the sedimentation tank. The interception cage includes an outer cage installed within the sedimentation tank and an inner liner placed inside the outer cage. The outer cage is open around its sides and bottom, open at the top, and has a notch on the side facing the water flow direction. The inner liner is open on the side perpendicular to the water flow direction, closed on the side and bottom parallel to the water flow direction, and open at the top. A support frame is erected above the sedimentation tank, and a pulley lifter is installed on the support frame. The pulley lifter is configured to lift the inner liner from inside the outer cage.
[0005] Preferably, the inner liner has a conical bottom with a hollowed-out design.
[0006] Preferably, a water flow baffle is formed inward at the edge of the notch.
[0007] Preferably, the pulley lifter includes a fixed pulley and a movable pulley that cooperate with each other, and a hook installed on the movable pulley, with a lifting hole formed on the inner liner that can cooperate with the hook to lift objects.
[0008] Preferably, the hanging holes are a pair and symmetrically arranged on the top of the inner liner.
[0009] Preferably, there are multiple sets of both fixed pulleys and movable pulleys.
[0010] Preferably, the bottom of the support frame is provided with locking pulleys.
[0011] Preferably, the support frame is provided with a rope loop, through which the pull rope wound on the pulley lifter passes and is tied to the rope loop.
[0012] Preferably, the end of the pull rope is provided with a stop.
[0013] Preferably, a layer of concrete is laid on the inner wall of the sedimentation tank.
[0014] The above technical solution creates a spindle-shaped sedimentation tank in the drainage channel. An interception cage, comprising an outer cage and an inner liner, is installed within the sedimentation tank. The outer cage is open on all four sides and bottom, with an open top and a notch on the side facing the water flow. The inner liner is open on the side perpendicular to the water flow, closed on the side and bottom parallel to the water flow, and open on the top. When rainwater enters the sedimentation tank from the upstream ditch, the interception cage slows down and settles the carried silt. The filtered liquid then enters the effluent area after passing through the interception cage, effectively removing silt and other solid particles. Simultaneously, a support frame is erected above the sedimentation tank, equipped with a pulley lifter. This pulley system connects the inner liner of the interception cage to the labor-saving pulley device. Once a certain amount of silt accumulates in the interception cage, only the inner liner needs to be lifted by the labor-saving pulley system for periodic cleaning, thus maintaining the smooth flow of the drainage system. Attached Figure Description
[0015] Figure 1 This is a structural schematic diagram of a drainage facility that can be intercepted and retrieved according to one embodiment of the present invention;
[0016] Figure 2 yes Figure 1 Cross-sectional view of section AA;
[0017] Figure 3 yes Figure 1 Cross-sectional view of section BB;
[0018] Figure 4 This is a schematic diagram of the interception cage of a drainage facility that can be intercepted and retrieved according to one embodiment of the present invention.
[0019] Explanation of reference numerals in the attached figures
[0020] 1-Sedimentation tank, 2-Concrete layer, 3-Support frame, 4-Pulley lifter, 5-Interception cage, 51-Outer cage, 52-Inner liner, 53-Conical bottom, 54-Water flow baffle, 55-Lifting hole. Detailed Implementation
[0021] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0022] In this utility model, unless otherwise stated, directional words such as "top," "bottom," "around," "upper," "lower," "inner," and "outer" contained in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the terminology.
[0023] See Figures 1 to 4 This utility model provides a drainage facility capable of intercepting and retrieving wastewater. The drainage facility includes a spindle-shaped sedimentation tank 1 installed on a drainage channel. The sedimentation tank 1 is equipped with an interception cage 5. The interception cage 5 includes an outer cage 51 installed in the sedimentation tank 1 and an inner liner 52 placed inside the outer cage 51. The outer cage 51 is hollow around its sides and bottom, open at the top, and has a notch on the side facing the water flow direction. The inner liner 52 is open on the side perpendicular to the water flow direction, closed on the side and bottom parallel to the water flow direction, and open at the top. A support frame 3 is installed above the sedimentation tank 1, and a pulley lifter 4 is installed on the support frame 3. The pulley lifter 4 is configured to lift the inner liner 52 from inside the outer cage 51.
[0024] According to the above technical solution, a spindle-shaped sedimentation tank 1 is formed in the drainage channel. An intercepting cage 5 is installed inside the sedimentation tank 1. The intercepting cage 5 includes an outer cage and an inner liner 52. The outer cage is open on all four sides and bottom, open at the top, and has a notch on the side facing the water flow direction. The inner liner 52 is open on the side perpendicular to the water flow direction, closed on the side and bottom parallel to the water flow direction, and open at the top. Thus, when rainwater enters the sedimentation tank 1 from the upstream ditch, the intercepting cage 5 slows down and settles the carried silt. The filtered liquid enters the effluent area after passing through the intercepting cage 5, effectively removing silt and other solid particles. Simultaneously, a support frame 3 is erected above the sedimentation tank 1, and a pulley lifter 4 is installed on the support frame 3. This connects the inner liner 52 of the intercepting cage 5 to the labor-saving pulley device. After a certain amount of silt accumulates in the intercepting cage 5, only the labor-saving pulley system is needed to lift the inner liner 52 of the intercepting cage 5 for periodic cleaning, thus maintaining the smooth flow of the drainage system.
[0025] In this embodiment, in order to allow sand and gravel to collect at the bottom of the inner liner 52 for easy cleaning or emptying after lifting, preferably, a conical bottom 53 is formed inside the inner liner 52, and the conical bottom 53 is hollowed out.
[0026] In this embodiment, a water flow baffle 54 is preferably formed inward at the edge of the notch. This baffle 54 promotes flocculation and sedimentation by changing the water flow direction and increasing turbulence, making suspended particles (such as sludge) more likely to collide and aggregate, thus accelerating sedimentation. The baffle 54 also prevents sludge accumulation, guides water flow to flush the bottom of the tank, avoids sludge deposition and compaction, and facilitates subsequent cleaning. Furthermore, the baffle 54 saves energy and optimizes the water flow path.
[0027] In this embodiment, in order to facilitate manual operation of the drainage facility that can intercept and retrieve water, the pulley lifter 4 preferably includes a fixed pulley and a movable pulley that cooperate with each other, and a hook installed on the movable pulley. The inner liner 52 has a lifting hole 55 that can cooperate with the hook to lift objects.
[0028] Furthermore, in order to ensure that the inner liner 52 remains stable during the lifting process and does not sway and spill out the debris inside, it is preferable that the lifting holes 55 are a pair and symmetrically arranged on the top of the inner liner 52.
[0029] In this embodiment, to save manual effort when using the drainage facility that can intercept and retrieve water, it is preferable that there are multiple sets of both the fixed and movable pulleys. By cooperating with multiple sets of fixed and movable pulleys, the force required to manually pull the rope to lift the inner tank 52 is greatly reduced, saving time and effort.
[0030] To allow for flexible adjustment of the lifting position of the pulley lifter 4 according to the specific conditions of the operating area, it is preferable to have a locking pulley at the bottom of the support frame 3. This way, when the position of the support frame 3 needs to be adjusted, simply unlock the locking pulley and manually push or pull to easily move and adjust the position of the support frame 3. After the movement, the locking pulley can be locked again for a stable and efficient lifting operation.
[0031] After manually pulling the pulley lift 4, if the rope is loosened carelessly, it may twist or tangle, making it difficult to retrieve later. In severe cases, this can affect the efficiency of the entire interception and retrieval drainage system. To avoid this, it is preferable to have a rope loop 6 on the support frame 3. The rope wrapped around the pulley lift 4 passes through and is tied to the rope loop 6. When the pulley lift 4 needs to be used, the operator manually unties the rope from the rope loop 6 and pulls it downwards to lift the pulley lift 4. After the operation, the rope is simply passed back through the rope loop 6 and tightened.
[0032] Because the operation is manual, if the operator forgets to tighten the rope or pulls it too much, the rope may easily fall off the rope ring 6. If it falls into the sedimentation tank 1, it will be very inconvenient to retrieve. To prevent this from happening, it is preferable to have a stop at the end of the rope. In this way, even if the rope slides off the rope ring 6, it will not slip off the rope ring 6, making subsequent retrieval convenient, labor-saving, and efficient.
[0033] In addition, in this embodiment, in order to ensure the structural integrity of the sedimentation tank 1, extend its service life, and reduce subsequent maintenance, it is preferable to lay a layer of concrete 2 on the inner wall of the sedimentation tank 1.
[0034] In summary, this interceptable and retrieval-capable drainage system combines the functions of intercepting and lifting debris, effectively reducing the risk of drainage system blockage and significantly lowering the difficulty of cleaning, while also being more environmentally friendly. Furthermore, this interceptable and retrieval-capable drainage system has a simple and flexible structure, effectively adapting to various projects and sites. The main structure is almost entirely underground, making it relatively concealed and aesthetically pleasing. In particular, the interception cage 5 adopts a V-shaped or conical bottom and a separately liftable inner filter basket design, which significantly improves sediment concentration, cleaning thoroughness, and ease of operation. The separate structure design of the outer main frame and the inner filter basket also facilitates inspection and, when necessary, maintenance or component replacement.
[0035] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.
Claims
1. A drainage facility capable of interception and retrieval, characterized in that, The interceptable and salvageable drainage facility includes a spindle-shaped sedimentation tank (1) installed on the drainage channel. The sedimentation tank (1) is equipped with an interception cage (5). The interception cage (5) includes an outer cage (51) installed in the sedimentation tank (1) and an inner liner (52) placed in the outer cage (51). The outer cage (51) is hollowed out on all four sides and bottom, open at the top and with a notch on the side facing the water flow direction. The inner liner (52) is open on the side perpendicular to the water flow direction, closed on the side and bottom parallel to the water flow direction, and open at the top. A support frame (3) is installed above the sedimentation tank (1). A pulley lifter (4) is installed on the support frame (3). The pulley lifter (4) is configured to lift the inner liner (52) from the outer cage (51).
2. The interceptable and retrieval-capable drainage facility according to claim 1, characterized in that, The inner liner (52) has a conical bottom (53) inside, and the conical bottom (53) is hollowed out.
3. The interceptable and retrieval-capable drainage facility according to claim 1, characterized in that, A water flow baffle (54) is formed inward at the edge of the notch.
4. The interceptable and retrieval-capable drainage facility according to claim 1, characterized in that, The pulley lifter (4) includes a fixed pulley and a movable pulley that cooperate with each other, and a hook installed on the movable pulley. The inner liner (52) has a lifting hole (55) that can cooperate with the hook to lift objects.
5. The interceptable and retrieval-capable drainage facility according to claim 4, characterized in that, The hanging holes (55) are a pair and symmetrically arranged on the top of the inner liner (52).
6. The interceptable and retrieval-capable drainage facility according to claim 4, characterized in that, Both the fixed pulleys and the movable pulleys are in multiple sets.
7. The interceptable and retrieval-capable drainage facility according to claim 1, characterized in that, The support frame (3) is equipped with a locking pulley at the bottom.
8. The interceptable and retrieval-capable drainage facility according to claim 1, characterized in that, The support frame (3) is provided with a rope loop (6), and the pull rope wrapped around the pulley lifter (4) passes through and is tied to the rope loop (6).
9. The interceptable and retrieval-capable drainage facility according to claim 8, characterized in that, The end of the pull rope is equipped with a stop.
10. The interceptable and retrieval-capable drainage facility according to claim 1, characterized in that, A layer of concrete (2) is laid on the inner wall of the sedimentation tank (1).