Water conservancy project drainage device
Through its modular filtration structure and rapid installation mechanism, the system solves the problems of low filtration accuracy and cumbersome maintenance in existing water conservancy engineering drainage devices, achieving efficient impurity interception and convenient maintenance operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-31
AI Technical Summary
Existing drainage filtration devices in water conservancy projects have low filtration accuracy, making it difficult to effectively intercept impurities of different sizes. Furthermore, the cleaning or replacement process is cumbersome and consumes a lot of time and manpower.
The filter adopts a modular filter structure design, including coarse filter, medium filter and fine filter. It uses a locking mechanism of sliding groove and slide bar, spring, plug rod and positioning hole to realize quick installation and disassembly of the filter mechanism. The filter is connected to the top plate by nuts and mounting screws.
It achieves step-by-step filtration of impurities of different sizes, improves filtration efficiency, simplifies the cleaning and replacement process, reduces maintenance difficulty and time costs, and adapts to the needs of various application scenarios.
Smart Images

Figure CN224063636U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a drainage device for water conservancy engineering. Background Technology
[0002] In water conservancy projects, drainage filtration devices are widely used. Their main function is to intercept impurities in the water, protect downstream equipment, and ensure water quality. However, existing drainage filtration technologies have several shortcomings. First, traditional filtration devices typically employ a single filter layer design, making it difficult to effectively intercept impurities of different sizes, resulting in low filtration accuracy and failing to meet the demands of demanding applications. Second, once the filter screen of these devices becomes clogged, cleaning or replacement is extremely cumbersome, often requiring disassembly of the entire device, consuming significant time and manpower. Therefore, we propose a drainage device for water conservancy projects. Utility Model Content
[0003] The main purpose of this utility model is to provide a drainage device for water conservancy projects, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A drainage device for a water conservancy project includes a filter box. An inlet pipe communicating with the interior of the filter box is located at the upper left end, and an outlet pipe communicating with the interior of the filter box is located at the lower right end. The upper end of the filter box is open. Two locking blocks are integrally formed on both the left and right sides of the upper end of the filter box. Two positioning holes are provided at the opposite ends of the two locking blocks located on the same side. Two sliding strips are integrally formed at both the front and rear ends of the filter box. A detachable filtration mechanism is installed inside the filter box.
[0006] The filtration mechanism includes an installation component, which is fixedly connected to two locking blocks on both sides. A handle is fixedly connected to the middle of the upper end of the installation component. A coarse filter, a medium filter, and a fine filter are detachably installed on the lower end of the installation component from left to right, and the coarse filter, the medium filter, and the fine filter are all located inside the filter box.
[0007] Preferably, the mounting component includes a top plate, and side plates are integrally formed at both the front and rear ends of the top plate. Each of the two side plates has two sliding grooves adapted to the sliding strips, and the two side plates are slidably connected to the front and rear ends of the filter box through the sliding grooves.
[0008] By adopting the above technical solution, the sliding groove on the side plate cooperates with the sliding strip on the filter box to improve the positioning accuracy of the top plate, prevent displacement, and improve stability.
[0009] Preferably, the top plate has slots at both the left and right ends for use with the card blocks, and two connecting slots are opened on the left and right sides of the top plate, with the two connecting slots located between two card slots on the same side. The upper wall of the connecting slot has a guide groove that penetrates the top of the top plate.
[0010] By adopting the above technical solution: the design of the guide groove allows the tie rod to slide smoothly in the guide groove, thereby enabling the moving block to move smoothly in the connecting groove and improving the overall structural compactness.
[0011] Preferably, a movable block is slidably connected in the connecting groove. Two springs are fixedly connected to one end of the movable block, and the ends of the springs away from the movable block are fixedly connected to the inner wall of the connecting groove. Two insert rods are fixedly connected to the ends of the movable block away from the springs. Both insert rods penetrate the inner wall of the connecting groove and are engaged in the positioning hole. A pull rod is fixedly connected to the upper end of the movable block, and the pull rod is slidably connected in the guide groove.
[0012] By adopting the above technical solution, using the cooperation of the slide groove and slide bar, as well as the locking mechanism of the spring, the insertion rod and the positioning hole, the overall quick installation and disassembly of the filter mechanism is realized. This design avoids the problem of traditional filter devices requiring complicated tools or steps, enabling users to complete the cleaning or replacement of the filter mechanism in a short time.
[0013] Preferably, the coarse filter element includes a filter frame, the front and rear ends of which are respectively fitted to the front and rear inner walls of the filter box, and the lower end of the filter frame is fitted to the lower inner wall of the filter box. A filter screen is embedded in the filter frame, and two mounting screws are fixedly installed at the upper end of the filter frame. Both mounting screws penetrate the top plate and are threaded with nuts.
[0014] By adopting the above technical solution, this simple mechanical connection method ensures the stability of the filter installation and facilitates quick disassembly, greatly reducing maintenance difficulty and time costs.
[0015] Preferably, the structures of the intermediate filter element and the fine filter element are the same as those of the coarse filter element, and the connection methods of the intermediate filter element and the fine filter element to the top plate are the same as those of the coarse filter element to the top plate.
[0016] By adopting the above technical solution: the filter screen in the coarse filter element can effectively intercept larger impurities and suspended solids, the filter screen in the medium filter element has a smaller pore size than the coarse filter element, and is used to further remove smaller particles and impurities, while the filter screen in the fine filter element has the smallest pore size, and can intercept tiny particles and suspended solids, thereby achieving a higher precision filtration effect.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. By detachably installing coarse, medium, and fine filter elements at the lower end of the top plate, a modular filtration structure design is achieved. This not only allows for step-by-step filtration of impurities of different sizes, improving filtration efficiency, but also facilitates user replacement of specific filter elements according to actual needs. Furthermore, the coarse, medium, and fine filter elements are all connected to the top plate using nuts and mounting screws. This simple mechanical connection method ensures the stability of the filter element installation and also facilitates quick disassembly, greatly reducing maintenance difficulty and time costs.
[0019] 2. Through the design of the mounting components, utilizing the cooperation of sliding grooves and slide bars, as well as the locking mechanism of springs, insertion rods, and positioning holes, the entire filter mechanism can be quickly installed and disassembled. This design avoids the operational problems of traditional filter devices that require complex tools or procedures, allowing users to complete the cleaning or replacement of the filter mechanism in a short time. In addition, the addition of a handle further enhances the ease of operation, making the entire device more user-friendly and adaptable to the needs of various usage scenarios. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a drainage device for water conservancy projects according to the present invention;
[0021] Figure 2 This is a schematic diagram of the composition structure of a drainage device for water conservancy projects according to the present invention;
[0022] Figure 3 This is a schematic diagram of the installation component of a drainage device for water conservancy projects according to the present invention;
[0023] Figure 4 This is a schematic diagram of the coarse filter element of a drainage device for water conservancy projects according to this utility model.
[0024] In the diagram: 1. Filter box; 2. Inlet pipe; 3. Outlet pipe; 4. Filter mechanism; 5. Mounting parts; 51. Top plate; 52. Side plate; 53. Slide groove; 54. Slot; 55. Connecting groove; 56. Guide groove; 57. Moving block; 58. Spring; 59. Insert rod; 60. Pull rod; 6. Handle; 7. Coarse filter element; 71. Filter frame; 72. Filter screen; 73. Mounting screw; 74. Nut; 8. Medium filter element; 9. Fine filter element; 11. Locking block; 12. Positioning hole; 13. Slide bar. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Please see Figure 1-4 This utility model provides a technical solution:
[0029] A drainage device for a water conservancy project includes a filter box 1. An inlet pipe 2 communicating with the interior of the filter box 1 is provided at the upper left end of the filter box 1, and an outlet pipe 3 communicating with the interior of the filter box 1 is provided at the lower right end of the filter box 1. The upper end of the filter box 1 is an open structure. Two locking blocks 11 are integrally formed on both the left and right sides of the upper end of the filter box 1. Two positioning holes 12 are provided at the opposite ends of the two locking blocks 11 on the same side. Two sliding strips 13 are integrally formed at both the front and rear ends of the filter box 1. A filter mechanism 4 is detachably installed inside the filter box 1.
[0030] In this embodiment, the filter mechanism 4 includes a mounting component 5, which is fixedly connected to two locking blocks 11 on both sides. A handle 6 is fixedly connected to the middle of the upper end of the mounting component 5. A coarse filter element 7, a medium filter element 8, and a fine filter element 9 are detachably installed on the lower end of the mounting component 5 from left to right, and the coarse filter element 7, the medium filter element 8, and the fine filter element 9 are all located inside the filter box 1. The mounting component 5 includes a top plate 51, and side plates 52 are integrally formed at both the front and rear ends of the top plate 51. Two sliding grooves 53 adapted to the sliding strips 13 are opened on each of the two side plates 52. The two side plates 52 are slidably connected to the front and rear ends of the filter box 1 through the sliding grooves 53. The left and right ends of the top plate 51 are provided with locking blocks 11 for use. The top plate 51 has two connecting slots 54 on the left and right sides, and the two connecting slots 55 are located between the two slots 54 on the same side. The upper wall of the connecting slot 55 has a guide groove 56 that penetrates the top of the top plate 51. A moving block 57 is slidably connected in the connecting slot 55. Two springs 58 are fixedly connected to one end of the moving block 57, and the end of the springs 58 away from the moving block 57 is fixedly connected to the inner wall of the connecting slot 55. Two insert rods 59 are fixedly connected to the end of the moving block 57 away from the springs 58. Both insert rods 59 penetrate the inner wall of the connecting slot 55 and are engaged in the positioning hole 12. A pull rod 60 is fixedly connected to the upper end of the moving block 57, and the pull rod 60 is slidably connected in the guide groove 56.
[0031] Through the above scheme, by utilizing the cooperation of the slide groove 53 and the slide bar 13, as well as the locking mechanism of the spring 58, the insertion rod 59 and the positioning hole 12, the overall quick installation and disassembly of the filter mechanism 4 is realized. This design avoids the problem of traditional filter devices requiring complex tools or steps, enabling users to complete the cleaning or replacement of the filter mechanism 4 in a short time.
[0032] In this embodiment, the coarse filter element 7 includes a filter frame 71. The front and rear ends of the filter frame 71 are respectively attached to the front and rear inner walls of the filter box 1, and the lower end of the filter frame 71 is attached to the lower inner wall of the filter box 1. A filter screen 72 is embedded in the filter frame 71. Two mounting screws 73 are fixedly installed on the upper end of the filter frame 71. Both mounting screws 73 penetrate the top plate 51 and are threadedly connected to nuts 74. The structures of the medium filter element 8 and the fine filter element 9 are the same as those of the coarse filter element 7, and the connection methods of the medium filter element 8 and the fine filter element 9 to the top plate 51 are the same as those of the coarse filter element 7 to the top plate 51.
[0033] The above solution achieves a modular filtration structure by detachably installing coarse filter element 7, medium filter element 8, and fine filter element 9 at the lower end of the top plate 51. This not only enables step-by-step filtration of impurities of different sizes, improving filtration efficiency, but also allows users to easily replace specific filter elements according to their actual needs. Furthermore, the coarse filter element 7, medium filter element 8, and fine filter element 9 are all connected to the top plate 51 using nuts 74 and mounting screws 73. This simple mechanical connection method ensures the stability of the filter element installation and facilitates quick disassembly, significantly reducing maintenance difficulty and time costs.
[0034] It should be noted that this utility model is a drainage device for water conservancy projects. In the process of use, firstly, water flows into the filter box 1 through the inlet pipe 2. Since the inlet pipe 2 is set at the upper left end of the filter box 1, the water flows in from a high place and can make full use of gravity to make the water flow naturally to the bottom of the filter box 1. After the water flows into the filter box 1, it first passes through the coarse filter element 7. The filter frame 71 in the coarse filter element 7 is inlaid with a filter screen 72, which can effectively intercept larger impurities and suspended solids. The design of the filter frame 71 ensures that its front, rear, and lower ends fit tightly against the inner wall of the filter box 1, ensuring that the water flow can only be filtered through the filter screen 72. After coarse filtration, the water flow continues to the middle filter element 8, which is also composed of a filter frame 71 and a filter screen 72, but the pore size of its filter screen 72 is smaller than that of the coarse filter element 7, which is used to further remove smaller particles and impurities. Subsequently, the water flow enters the fine filter element 9, where the filter screen 72 has the smallest pore size, which can intercept tiny particles and suspended solids, thereby achieving a higher precision filtration effect. After three stages of filtration, the clean water finally flows out of the filter box 1 through the outlet pipe 3. Since the outlet pipe 3 is located at the lower right end of the filter box 1, it can ensure that the water flow is completely discharged and avoids residue. Furthermore, when cleaning the filter mechanism 4 is required, the operator can squeeze the pull rod 60 on the same side to make the pull rod 60 slide in the guide groove 56. Since the pull rod 60 is fixedly connected to the moving block 57, the moving block 57 will move accordingly. As the moving block 57 moves, the spring 58 on it is compressed, and at the same time, the insertion rod 59 is withdrawn from the positioning hole 12, thereby releasing the fixed connection between the mounting part 5 and the filter box 1. At this time, the operator can grab the handle 6 and take out the entire filter mechanism 4 along the filter box 1, so that the coarse filter element 7, the medium filter element 8 and the fine filter element 9 can be cleaned and maintained. The nuts 74 on the coarse filter element 7, the medium filter element 8 and the fine filter element 9 can be unscrewed respectively, and the mounting screws 73 can be removed, so that each filter frame 71 can be easily disassembled and replaced for easy maintenance.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A hydraulic engineering drainage device comprising a filter box (1), characterized in that: The left upper end of the filter box (1) is provided with a water inlet pipe (2) communicated with the inside of the filter box (1), the right lower end of the filter box (1) is provided with a water outlet pipe (3) communicated with the inside of the filter box (1), the upper end of the filter box (1) is of open structure, the upper end of the filter box (1) is integrally formed with two clamping blocks (11) on the left and right sides, the opposite ends of the two clamping blocks (11) on the same side are provided with two positioning holes (12), the front and rear ends of the filter box (1) are integrally formed with two sliding strips (13), and the filter mechanism (4) is detachably installed in the filter box (1). The filter mechanism (4) comprises a mounting piece (5), the mounting piece (5) is fixedly connected with the two clamping blocks (11) on the left and right sides, the upper end of the mounting piece (5) is fixedly connected with a handle (6), and the lower end of the mounting piece (5) is detachably installed with a coarse filter (7), a medium filter (8) and a fine filter (9) from left to right on one side, and the coarse filter (7), the medium filter (8) and the fine filter (9) are located in the filter box (1).
2. The drainage device for hydraulic engineering according to claim 1, characterized in that: The mounting piece (5) comprises a top plate (51), the front and rear ends of the top plate (51) are integrally formed with side plates (52), two sliding grooves (53) matched with the sliding strips (13) are formed in the two side plates (52), and the two side plates (52) are slidably connected to the front and rear ends of the filter box (1) through the sliding grooves (53).
3. The drainage device for hydraulic engineering according to claim 2, characterized in that: The left and right ends of the top plate (51) are provided with clamping grooves (54) matched with the clamping blocks (11), the left and right parts of the top plate (51) are provided with two connecting grooves (55), and the two connecting grooves (55) are located between the two clamping grooves (54) on the same side, and the upper groove wall of the connecting groove (55) is provided with a guide groove (56) penetrating through the top of the top plate (51).
4. The drainage device for hydraulic engineering according to claim 3, characterized in that: A moving block (57) is slidably connected in the connecting groove (55), one end of the moving block (57) is fixedly connected with two springs (58), one end of the spring (58) away from the moving block (57) is fixedly connected with the inner wall of the connecting groove (55), one end of the moving block (57) away from the spring (58) is fixedly connected with two insertion rods (59), the two insertion rods (59) penetrate through the inner wall of the connecting groove (55) and are clamped in the positioning hole (12), and the upper end of the moving block (57) is fixedly connected with a pull rod (60), and the pull rod (60) is slidably connected in the guide groove (56).
5. The water conservancy drainage device according to claim 1, characterized in that: The coarse filter (7) comprises a filter frame (71), the front and rear ends of the filter frame (71) are respectively attached to the front and rear inner walls of the filter box (1), and the lower end of the filter frame (71) is attached to the lower inner wall of the filter box (1), the filter frame (71) is inlaid with a filter screen (72), and the upper end of the filter frame (71) is fixedly installed with two installation screws (73), and the two installation screws (73) penetrate through the top plate (51) and are threadedly connected with nuts (74).
6. The water conservancy drainage device according to claim 1, characterized in that: The structure of the medium filter (8) and the fine filter (9) is the same as that of the coarse filter (7), and the connection mode of the medium filter (8) and the fine filter (9) with the top plate (51) is the same as that of the coarse filter (7) with the top plate (51).