A drainage device for hydraulic engineering
By introducing a V-shaped filter table and a clamping structure into the diversion device, combined with the design of clamping posts and return springs, the problem of filter clogging is solved, achieving rapid cleaning and efficient water flow guidance, thus improving the drainage efficiency and safety of water conservancy projects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN SHUITOU LICHENG CONSTRUCTION & DEVELOPMENT CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-12
AI Technical Summary
The filter screen of the existing diversion device is easily clogged under the impact of water flow, resulting in a reduction of the flow cross-section, a longer maintenance cycle, and difficulty in cleaning, which poses a safety hazard.
The filter uses a V-shaped filter table and a V-shaped locking structure, combined with a locking post, a return spring, and a locking rod design, to achieve quick locking and disassembly of the filter components. Impurities are intercepted and collected on the inclined surface, and quick unlocking and complete removal are achieved through the cooperation of the pull rod and the locking hole.
Keeping the filter screen clear reduces maintenance downtime, improves the device's continuous drainage capacity and ease of cleaning, and reduces maintenance frequency.
Smart Images

Figure CN224351150U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy engineering technology, specifically to a diversion and drainage device for water conservancy projects. Background Technology
[0002] A water diversion device in a hydraulic engineering project is a key facility used to guide the direction of water flow, regulate flow, or redistribute water resources. It is commonly used in river regulation, reservoir discharge, farmland irrigation, and urban drainage. It typically consists of an inlet, a diversion channel, gates, an energy dissipation section, and an outlet. By opening and closing the gates or adjusting the angle of the diversion plates, the speed and direction of the water flow are controlled, preventing erosion and improving water conveyance efficiency. Modern water diversion devices often use reinforced concrete or steel structures, combined with automated monitoring systems, to achieve remote regulation and real-time monitoring, ensuring multiple objectives such as flood control safety, stable water supply, and ecological restoration.
[0003] Current filter screens generally employ a flat, fixed structure. Under continuous water flow, impurities such as silt and weeds quickly adhere to and accumulate at the edges of the screen. As the blockage area expands, the flow cross-section decreases sharply, the pump station load increases, and drainage efficiency drops drastically, potentially leading to safety hazards such as upstream water level rise and dike overflow. Furthermore, the filter screen is rigidly fixed to the drainage channel by bolts and pressure plates. Tightening or loosening these bolts in the confined space requires specialized tools and multiple people, making a single cleaning session easily several hours long. Corroded bolts become even more difficult to disassemble, forcing extended maintenance cycles and severely weakening the project's continuous drainage capacity. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a diversion and drainage device for water conservancy projects, including a diversion platform, an inlet platform fixedly connected to the top of the diversion platform, a V-shaped clamping platform fixedly connected to the inner wall of the diversion platform, and a filter component clamped inside the V-shaped clamping platform.
[0005] The filter assembly includes a V-shaped filter table, an extension block fixedly connected to the surface of the V-shaped filter table, a locking hole inside the extension block, a locking post inside the locking hole, a limit sleeve plate fixedly connected to the surface of the locking post, a return spring fixedly connected to the right end of the limit sleeve plate, a locking strip fixedly connected to the surface of the locking post, a locking platform slidably connected to the surface of the locking strip, and a pull rod fixedly connected to the surface of the locking post.
[0006] The above technical solution, by setting up a diversion platform, an inlet platform, a V-shaped clamping platform, and a filter assembly, allows water to enter from the inlet platform and be first intercepted and filtered by the V-shaped filter platform. Impurities slide down the inclined surface and are collected at the bottom. At the same time, the separable structure of the clamping posts and clamping holes enables the filter assembly to be quickly locked and removed as a whole. This keeps the filter screen unobstructed during continuous diversion and significantly shortens maintenance downtime.
[0007] As a further improvement to the above solution, the outer surface of the V-shaped filter table is in contact with the inner wall of the V-shaped card table.
[0008] Through the above technical solution, the outer surface of the V-shaped filter table fits into the inner wall of the V-shaped card plate, so that the filter component remains stable under high pressure water flow, preventing lateral shaking that could lead to seal failure.
[0009] As a further improvement to the above scheme, the number of extension blocks is set to four, and the four extension blocks are evenly distributed on the surface with symmetry about the top center of the V-shaped filter table.
[0010] With the above technical solution, the four extension blocks are symmetrically distributed, so that the clamping force is evenly distributed around the V-shaped filter table, avoiding deformation due to single-point stress and extending the structural life.
[0011] As a further improvement to the above solution, the card post passes through the card hole, and the rear end of the card platform is fixedly connected to the surface of the drainage platform.
[0012] Through the above technical solution, the locking post passes through the locking hole and the locking platform is fixed on the drainage platform, forming a rigid guide channel to ensure that the movement direction of the locking post is always consistent with the axis of the locking hole, thereby improving the locking reliability.
[0013] As a further improvement to the above solution, the right end of the reset spring is fixedly connected to the inner wall of the card table, and the pull rod passes through the front end of the card table.
[0014] With the above technical solution, the right end of the reset spring is fixed to the mounting plate and the pull rod passes through the front end, forming a built-in reset mechanism. External water flow or mud and sand cannot interfere with the spring stroke, ensuring long-term flexible reset.
[0015] As a further improvement to the above solution, the surface of the locking post is provided with a locking hole one, and a locking rod is engaged inside the locking hole one; the surface of the locking post is provided with a locking hole two.
[0016] Through the above technical solution, the first and second locking holes work together with the locking rod to achieve two-level positioning of the locking post, with the first level unlocking and the second level locking. During the disassembly and assembly process, the locking post is always constrained to prevent parts from falling out.
[0017] As a further improvement to the above solution, the diameters of the first and second card holes are the same, and the front end of the card rod penetrates the inner wall of the diversion platform.
[0018] With the above technical solution, the first and second locking holes have the same diameter and the locking rod passes through the flow guide platform. Two-level locking can be completed using a single specification locking rod, which simplifies spare parts management and improves assembly versatility.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] This invention features a V-shaped filter platform and a V-shaped retainer. The inclined V-shaped filter surface allows impurities to first contact and be intercepted when water flows in. Subsequently, the impurities roll off to the bottom due to gravity, avoiding the clogging caused by impurities accumulating at the edges of traditional flat filters. This achieves continuous self-cleaning and reduces the frequency of maintenance.
[0021] This utility model, by setting a locking post, a return spring, a locking rod, and locking holes one and two, allows the V-shaped filter table to be quickly unlocked and lifted as a whole by pulling the locking rod, compressing the return spring to disengage the locking post from the locking hole, and then inserting the locking rod to lock the locking hole two. This achieves the effect of disassembly and assembly without tools, and facilitates on-site cleaning and replacement. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the overall structure of the filter assembly of this utility model;
[0025] Figure 4 This is a schematic diagram of the overall disassembled structure of the filter assembly of this utility model;
[0026] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A.
[0027] In the diagram: 1. Drainage platform; 2. Water inlet platform; 3. V-shaped retaining plate; 4. Filter assembly; 41. V-shaped filter table; 42. Extension block; 43. Retaining hole; 44. Retaining post; 45. Limiting sleeve; 46. Return spring; 47. Retaining strip; 48. Retaining plate; 49. Pull rod; 5. Retaining hole one; 6. Retaining rod; 7. Retaining hole two. Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0029] Example:
[0030] Please combine Figure 1-5 This embodiment of a water conservancy engineering diversion and drainage device includes a diversion platform 1, an inlet platform 2 fixedly connected to the top of the diversion platform 1, a V-shaped clamping platform 3 fixedly connected to the inner wall of the diversion platform 1, and a filter assembly 4 clamped inside the V-shaped clamping platform 3.
[0031] The filter assembly 4 includes a V-shaped filter table 41. An extension block 42 is fixedly connected to the surface of the V-shaped filter table 41. A locking hole 43 is opened inside the extension block 42. A locking post 44 is locked inside the locking hole 43. A limiting sleeve plate 45 is fixedly connected to the surface of the locking post 44. A return spring 46 is fixedly connected to the right end of the limiting sleeve plate 45. A locking strip 47 is fixedly connected to the surface of the locking post 44. A locking platform 48 is slidably connected to the surface of the locking strip 47. A pull rod 49 is fixedly connected to the surface of the locking post 44. Water enters the interior of the V-shaped filter table 41 through the water inlet platform 2. After being filtered by the V-shaped filter table 41, it enters the interior of the diversion platform 1 for diversion. Pulling the pull rod 49 to the right causes the limiting sleeve plate 45 to squeeze the return spring 46, simultaneously causing the front end of the locking post 44 to disengage from the interior of the locking hole 43. Pulling the V-shaped filter table 41 upwards allows it to be removed from the interior of the diversion platform 1, facilitating subsequent cleaning and replacement of the V-shaped filter table 41.
[0032] The outer surface of the V-shaped filter table 41 is in contact with the inner wall of the V-shaped card table 3.
[0033] The number of extension blocks 42 is set to four, and the four extension blocks 42 are evenly distributed on the surface with the top center of the V-shaped filter table 41 symmetrically.
[0034] The locking post 44 passes through the locking hole 43, and the rear end of the locking platform 48 is fixedly connected to the surface of the drainage platform 1.
[0035] The right end of the reset spring 46 is fixedly connected to the inner wall of the card table 48, and the pull rod 49 passes through the front end of the card table 48.
[0036] The surface of the locking post 44 has a locking hole 5, and a locking rod 6 is engaged inside the locking hole 5. The surface of the locking post 44 also has a locking hole 7, and the locking rod 6 limits the position of the locking post 44.
[0037] The diameters of the first 5 and the second 7 are the same, and the front end of the 6 rod penetrates the inner wall of the flow-draining platform 1.
[0038] The implementation principle of the diversion and drainage device for water conservancy projects in this application embodiment is as follows: When diverting and draining water in a water conservancy project, the water source first enters the interior of the V-shaped filter table 41 through the inlet platform 2. After being filtered by the V-shaped filter table 41, the water enters the interior of the diversion platform 1 for diversion. When the water source impacts the interior of the V-shaped filter table 41 through the inlet platform 2, the water source will first contact the inner wall filter surface of the V-shaped filter table 41 because the overall filter surface of the V-shaped filter table 41 is inclined. The impurities inside the water source are filtered by the filter surface and then roll down to the bottom of the inner wall of the V-shaped filter table 41. Unlike conventional filters where the water source passes directly through and the impurities accumulate on the edge of the filter under the continuous impact of the water flow, causing the filter to become clogged.
[0039] Using the locking post 44, pull the locking rod 6 out from the inside of the locking hole 5. Pull the lever 49 to the right, so that the limiting sleeve 45 squeezes the return spring 46, and simultaneously drives the front end of the locking post 44 to disengage from the inside of the locking hole 43. Then, lock the locking rod 6 into the inside of the locking hole 7 and through the inner wall of the flow guide 1, so that the locking post 44 is limited. Pull the V-shaped filter table 41 upward, and the V-shaped filter table 41 can be removed from the inside of the flow guide 1, which is convenient for subsequent cleaning and replacement of the V-shaped filter table 41.
[0040] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A diversion and drainage device for water conservancy projects, characterized in that: Includes a diversion platform (1), the top of which is fixedly connected to a water inlet platform (2), and the inner wall of the diversion platform (1) is fixedly connected to a V-shaped clamping platform (3), and a filter assembly (4) is clamped inside the V-shaped clamping platform (3). The filter assembly (4) includes a V-shaped filter table (41), an extension block (42) is fixedly connected to the surface of the V-shaped filter table (41), a locking hole (43) is opened inside the extension block (42), a locking post (44) is locked inside the locking hole (43), a limiting sleeve plate (45) is fixedly connected to the surface of the locking post (44), a return spring (46) is fixedly connected to the right end of the limiting sleeve plate (45), a locking strip (47) is fixedly connected to the surface of the locking post (44), a locking platform (48) is slidably connected to the surface of the locking strip (47), and a pull rod (49) is fixedly connected to the surface of the locking post (44).
2. The water diversion and drainage device for water conservancy projects according to claim 1, characterized in that: The outer surface of the V-shaped filter table (41) is in contact with the inner wall of the V-shaped card table (3).
3. The diversion and drainage device for water conservancy projects according to claim 1, characterized in that: The number of the extension blocks (42) is set to four, and the four extension blocks (42) are evenly distributed on the surface with the top center of the V-shaped filter table (41) symmetrical.
4. A diversion and drainage device for water conservancy projects according to claim 1, characterized in that: The card post (44) passes through the card hole (43), and the rear end of the card platform (48) is fixedly connected to the surface of the drainage platform (1).
5. A diversion and drainage device for water conservancy projects according to claim 1, characterized in that: The right end of the reset spring (46) is fixedly connected to the inner wall of the card holder (48), and the pull rod (49) passes through the front end of the card holder (48).
6. A diversion and drainage device for water conservancy projects according to claim 1, characterized in that: The surface of the locking post (44) is provided with a locking hole 1 (5), and a locking rod (6) is locked inside the locking hole 1 (5). The surface of the locking post (44) is provided with a locking hole 2 (7).
7. A diversion and drainage device for water conservancy projects according to claim 6, characterized in that: The diameters of the first (5) and the second (7) of the card hole are the same, and the front end of the card rod (6) penetrates the inner wall of the diversion platform (1).