Seepage prevention and water-stopping structures used in water conservancy and hydropower projects
By combining the base layer, embankment, bottom slab, drainage device and dredging device, the high-pressure water flow is used to impact the silt and lift it away from the nozzle, which solves the problem of difficult silt accumulation in water conservancy and hydropower projects and improves the quality of the anti-seepage and water-stopping structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 宁夏水务集团清水河城乡供水有限公司
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-30
AI Technical Summary
Existing water conservancy and hydropower engineering seepage prevention and water-stopping structures are difficult to clean due to silt accumulation, affecting their quality of use. Traditional designs have not fully considered the need for silt removal.
The system employs a combination of base layer, embankment, bottom slab, drainage device, and dredging device. It utilizes high-pressure water flow to impact the silt and uses electric push rods and hydraulic cylinders to drive the nozzles to lift them off the water surface, thus preventing blockage.
It improves dredging performance, prevents long-term silt accumulation, maintains the seepage prevention and water-stopping effect of the structure, facilitates cleaning, and reduces the impact of silt on use.
Smart Images

Figure CN224431363U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy and hydropower engineering technology, specifically to a seepage prevention and water-stopping structure used in water conservancy and hydropower engineering. Background Technology
[0002] Hydraulic and hydropower engineering is an engineering technology field that comprehensively applies knowledge from disciplines such as hydraulic engineering, hydrology, mechanics, and electrical engineering. It takes water resource development and utilization as its core and takes into account objectives such as flood control, power generation, irrigation, water supply, navigation, and ecological protection. In hydraulic and hydropower engineering, seepage prevention and water-stopping structures are key components to ensure the long-term stability and safe operation of structures. They are mainly used to prevent water seepage, reduce leakage losses, control uplift pressure, and avoid seepage damage.
[0003] For existing seepage prevention and water-stopping structures used in water conservancy and hydropower projects, a large amount of silt will accumulate near the structure due to the flow of water. The long-term accumulation of silt will affect the quality of the seepage prevention and water-stopping of the structure. Traditional seepage prevention structures (such as concrete panels and geomembranes) have not fully considered the need for silt removal in their design, making it difficult to effectively clean up the silt after accumulation, which inconveniences people to use. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a seepage-proof and water-stopping structure for water conservancy and hydropower projects. It solves the problem that existing seepage-proof and water-stopping structures used in water conservancy and hydropower projects tend to accumulate large amounts of silt near the structure due to water flow. The long-term accumulation of silt affects the quality of the seepage-proof and water-stopping structure. Traditional seepage-proof structures (such as concrete panels and geomembranes) are not designed with sufficient consideration for silt removal needs, making it difficult to effectively clean up the silt after accumulation, thus causing inconvenience to users.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a seepage-proof and water-stopping structure for water conservancy and hydropower projects, comprising a base layer, a dam fixedly connected to one side of the top of the base layer, a seepage-proof wall fixedly connected to one side of the dam, and a dredging device installed above the base layer. The dredging device comprises: a pump body fixedly connected to one side of the top of the dam; a first connecting pipe connected to the input end of the pump body, with its outer wall penetrating above the seepage-proof wall; a second connecting pipe connected to the output end of the pump body; a spray pipe fitted onto the lower part of the outer wall of the second connecting pipe; and two electric push rods fixedly connected to the top sides of the spray pipe. The electric push rods drive the spray pipe to move upward along the second connecting pipe, lifting the spray pipe off the water surface.
[0006] Preferably, the top of the impermeable wall has an arc-shaped structure.
[0007] Preferably, a groove is fixedly connected to the top of the base layer, and a bottom plate is fixedly connected to the inner wall of the groove. The bottom and outer wall of the bottom plate are respectively fixedly connected to the top of the base layer and the lower part of the outer wall of the dam.
[0008] Preferably, a drainage device is provided above the base layer. The drainage device includes: a frame, fixedly connected to the inner wall of the dam and fixedly connected to the top of the base plate, the outer wall of the frame being fixedly connected to the top of two electric push rods; a gate, fitted to the inner wall of the frame and fitted to the top of the base plate; a hydraulic cylinder, fixedly connected to the inner wall of the frame, with its output end fixedly connected to the top of the gate; and two insert rods, both fixedly connected to the top of the gate and fitted to the inner wall of the frame. The hydraulic cylinder drives the gate to move along the inner wall of the frame, and the insert rods move along the inner wall of the frame.
[0009] Preferably, both of the inserts have circular cross-sections.
[0010] Beneficial effects
[0011] This utility model provides a seepage-proof and water-stopping structure for use in water conservancy and hydropower projects. It has the following beneficial effects: This seepage-proof and water-stopping structure for water conservancy and hydropower projects, through the cooperation of a base layer, dam, bottom slab, drainage device, and dredging device, utilizes high-pressure water flow to impact silt, thereby improving the overall dredging performance and preventing long-term silt accumulation that could affect the overall quality of use. Furthermore, when dredging is not being carried out, the nozzle can be raised above the water surface to prevent silt blockage, thus facilitating operation by workers. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 for Figure 1 Structural diagram of the base plate, dam, and nozzle;
[0014] Figure 3 for Figure 1 Schematic diagram of the structure of the electric actuator, pump body and anti-seepage wall;
[0015] Figure 4 for Figure 1 A schematic diagram of the structure of the central gate, the second connecting pipe, and the dam.
[0016] In the diagram: 1. Base layer; 2. Dredging device; 21. Pump body; 22. First connecting pipe; 23. Second connecting pipe; 24. Spray pipe; 25. Electric push rod; 3. Drainage device; 31. Frame; 32. Gate; 33. Hydraulic cylinder; 34. Insert rod; 4. Dam; 5. Anti-seepage wall; 6. Groove; 7. Base plate. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.
[0019] For existing seepage prevention and water-stopping structures used in water conservancy and hydropower projects, due to the flow of water, a large amount of silt will accumulate near the structure. The long-term accumulation of silt will affect the seepage prevention and water-stopping quality of the structure. Traditional seepage prevention structures (such as concrete panels and geomembranes) have not fully considered the silt removal needs in their design, making it difficult to effectively clean up the silt after accumulation, which inconveniences people to use.
[0020] In view of this, the present invention provides a seepage prevention and water-stopping structure for water conservancy and hydropower projects. Through the cooperation of the base layer, dam, bottom plate, drainage device and dredging device, high-pressure water flow is used to impact the silt, thereby improving the overall dredging performance and avoiding the long-term accumulation of silt, which would affect the overall quality of use. When dredging is not being carried out, the nozzle can be raised off the water surface to prevent the nozzle from being blocked by silt, thus facilitating the use by the staff.
[0021] Example 1: By Figure 1 , 2 As can be seen from points 3 and 4, the seepage prevention and water-stopping structure used in water conservancy and hydropower projects includes a base layer 1. A dam 4 is fixedly connected to one side of the top of the base layer 1, and a seepage prevention wall 5 is fixedly connected to one side of the dam 4. A dredging device 2 is installed above the base layer 1. The dredging device 2 includes: a pump body 21, fixedly connected to one side of the top of the dam 4; a first connecting pipe 22, connected to the input end of the pump body 21, and its outer wall penetrates the top of the seepage prevention wall 5; a second connecting pipe 23, connected to the output end of the pump body 21; a spray pipe 24, sleeved on the lower part of the outer wall of the second connecting pipe 23; and two electric push rods 25, fixedly connected to the top two sides of the spray pipe 24. The electric push rods 25 drive the spray pipe 24 to move upward along the second connecting pipe 23, lifting the spray pipe 24 away from the water surface.
[0022] In the specific implementation process, it is worth noting that there are no restrictions on the models of the pump body 21 and the electric push rod 25, as long as they meet the usage requirements. It should be noted that when using them, waterproof and dustproof protection measures should be taken for the pump body 21 and the electric push rod 25. The specific implementation method is not limited and can be selected according to the actual usage situation, subject to meeting the technical features of this case. The pump body 21 can be drawn out through the first connecting pipe 22, and then transported to the inside of the nozzle 24 through the second connecting pipe 23. Finally, it is sprayed out after being pressurized in order to agitate the sludge. The electric push rod 25 can drive the nozzle 24 to move along the outer wall of the second connecting pipe 23 so as to better treat the sludge.
[0023] Furthermore, the upper part of the seepage barrier 5 has an arc-shaped structure;
[0024] In the specific implementation process, it is worth noting that the arc-shaped seepage barrier wall 5 can block the water flow;
[0025] Furthermore, a groove 6 is fixedly connected to the top of the base layer 1, and a base plate 7 is fixedly connected to the inner wall of the groove 6. The bottom and outer wall of the base plate 7 are respectively fixedly connected to the top of the base layer 1 and the lower part of the outer wall of the dam 4.
[0026] In the specific implementation process, it is worth noting that the silt can settle inside the groove 6, and can also be guided during drainage so that the silt can be discharged better.
[0027] Furthermore, a drainage device 3 is provided above the base layer 1. The drainage device 3 includes: a frame 31, which is fixedly connected to the inner wall of the dam 4 and fixedly connected to the top of the base plate 7. The outer wall of the frame 31 is fixedly connected to the top of two electric push rods 25; a gate 32, which is attached to the inner wall of the frame 31 and attached to the top of the base plate 7; a hydraulic cylinder 33, which is fixedly connected to the inner wall of the frame 31 and whose output end is fixedly connected to the top of the gate 32; and two insertion rods 34, both of which are fixedly connected to the top of the gate 32 and attached to the inner wall of the frame 31. The hydraulic cylinder 33 drives the gate 32 to move along the inner wall of the frame 31, and the insertion rods 34 move along the inner wall of the frame 31.
[0028] In the specific implementation process, it is worth noting that the model of hydraulic cylinder 33 is not limited, as long as it meets the usage requirements. It should be noted that when using it, waterproof and dustproof protection measures should be taken for hydraulic cylinder 33. The specific implementation method is not limited and can be selected according to the actual usage situation, in accordance with the technical features of this case. Hydraulic cylinder 33 can drive gate 32 to move along the inner wall of frame 31, thereby realizing the discharge of water.
[0029] Furthermore, the cross-sections of both insertion rods 34 are circular;
[0030] In the specific implementation process, it is worth noting that the circular design of the insertion rod 34 can move better along the inner wall of the frame 31;
[0031] Specifically, when using this seepage-proof and water-stopping structure in water conservancy and hydropower projects, when drainage and dredging are carried out, the hydraulic cylinder 33 is opened, and the hydraulic cylinder 33 can drive the gate 32 to move along the inner wall of the frame 31, at which time the gate can be opened to release water and dredge the silt.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A seepage-proof and water-stopping structure for use in water conservancy and hydropower projects, comprising a base layer (1), characterized in that: A dam (4) is fixedly connected to one side of the top of the base layer (1), and a seepage prevention wall (5) is fixedly connected to one side of the dam (4). A dredging device (2) is installed above the base layer (1), and the dredging device (2) includes: The pump body (21) is fixedly connected to one side of the top of the dam (4); The first connecting pipe (22) is connected to the input end of the pump body (21), and its outer wall penetrates the top of the seepage-proof wall (5); The second connecting pipe (23) is connected to the output end of the pump body (21); The nozzle (24) is fitted onto the lower outer wall of the second connecting pipe (23); Two electric push rods (25) are provided and fixedly connected to the top two sides of the nozzle (24); The electric push rod (25) drives the nozzle (24) to move upward along the second connecting pipe (23), lifting the nozzle (24) off the water surface.
2. The seepage prevention and water-stopping structure for water conservancy and hydropower projects according to claim 1, characterized in that: The top of the seepage barrier (5) has an arc-shaped structure.
3. The seepage prevention and water-stopping structure for water conservancy and hydropower projects according to claim 1, characterized in that: The top of the base layer (1) is fixedly connected to a groove (6), and the inner wall of the groove (6) is fixedly connected to a bottom plate (7). The bottom and outer wall of the bottom plate (7) are respectively fixedly connected to the top of the base layer (1) and the lower part of the outer wall of the dam (4).
4. The seepage prevention and water-stopping structure for water conservancy and hydropower projects according to claim 3, characterized in that: A drainage device (3) is provided above the base layer (1), and the drainage device (3) includes: The frame (31) is fixedly connected to the inner wall of the dam (4) and to the top of the bottom plate (7). The outer wall of the frame (31) is fixedly connected to the top of the two electric push rods (25). The gate (32) is attached to the inner wall of the frame (31) and to the top of the base plate (7); The hydraulic cylinder (33) is fixedly connected to the inner wall of the frame (31), and its output end is fixedly connected to the top of the gate (32); Two insertion rods (34) are provided, both of which are fixedly connected to the top of the gate (32) and are attached to the inner wall of the frame (31); The hydraulic cylinder (33) drives the gate (32) to move along the inner wall of the frame (31), and the insertion rod (34) moves along the inner wall of the frame (31).
5. The seepage prevention and water-stopping structure for water conservancy and hydropower projects according to claim 4, characterized in that: Both of the aforementioned inserts (34) have circular cross-sections.