Impermeable plate for water conservancy project
By installing sunshade films and water retaining components on the anti-seepage boards used in water conservancy projects, the problems of temperature gradient and tensile stress caused by sunlight exposure are solved, ensuring the anti-seepage performance and structural stability of the anti-seepage boards.
Patent Information
- Application Number
- CN202422616044.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Concrete anti-seepage slabs will produce temperature gradients under long-term exposure to sunlight, leading to tensile stress and cracks, affecting the anti-seepage performance and accelerating the carbonization and strength loss of concrete.
An anti-seepage board for water conservancy projects is designed, which is equipped with a sunshade film and a water retaining assembly. The sunshade film is wound and unwound by a torsion spring shaft and automatically adjusts its position as the water level changes. The water retaining assembly moves with the rise and fall of the water level to ensure that the sunshade film always covers the surface of the anti-seepage board.
It effectively avoids the adverse effects of long-term sunlight exposure on the anti-seepage board, maintains the anti-seepage performance, reduces the impact force of water flow, and extends the service life of the anti-seepage board.
Smart Images
Figure CN223343230U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of water conservancy projects, and particularly relates to an anti-seepage plate for water conservancy projects. Background Art
[0002] The dam anti-seepage plate is an important part of the dam anti-seepage system. Concrete is one of the commonly used anti-seepage plate materials. It has high strength and good anti-seepage performance. Due to the characteristics of thermal expansion and contraction of concrete, when sunlight shines on the concrete anti-seepage plate for a long time, its surface temperature will increase significantly. Due to the relatively poor thermal conductivity of concrete, a large temperature gradient will be formed between the surface and the interior. This temperature difference will cause the concrete to expand, while the relatively low temperature part inside limits the expansion of the surface, thereby generating tensile stress. When the tensile stress exceeds the tensile strength of the concrete, cracks will appear. These cracks will become seepage channels, seriously affecting the anti-seepage performance of the anti-seepage plate. At the same time, it will also aggravate the temperature cracks caused by the heat of cement hydration in the early construction stage of the concrete anti-seepage plate. Sunlight exposure will also accelerate the carbonization process of concrete, and ultraviolet rays will decompose the organic components in the concrete, resulting in a decrease in the strength and toughness of the concrete. Therefore, long-term exposure to sunlight will have an adverse effect on the concrete anti-seepage plate. Utility Model Content
[0003] The utility model provides an anti-seepage board for water conservancy projects, which has the characteristic that the surface of the anti-seepage board body can be covered by a sunshade film to prevent the anti-seepage performance of the anti-seepage board body from being reduced due to long-term sunlight exposure.
[0004] The utility model provides the following technical solution: it includes an anti-seepage plate body, characterized in that: a winding bin is provided on the top of the anti-seepage plate body, a torsion spring rotating shaft is provided on the inner side of the winding bin, a sunshade film is provided on the outer side of the torsion spring rotating shaft, a plurality of guide rods are provided on one side of the winding bin, and a water retaining assembly is slidably connected to the plurality of guide rods, the water retaining assembly includes a buoyancy bar and an arc plate, the buoyancy bar is slidably connected to the plurality of guide rods, the arc plate is fixedly connected to the buoyancy bar, and the sunshade film is fixedly connected to the buoyancy bar on the side away from the winding bin.
[0005] Wherein, a through slot is opened on one side of the winding bin, and the sunshade film is slidably connected to the inner side of the through slot.
[0006] Wherein, connecting grooves are provided on both sides of the through groove, and a guide shaft is provided on the inner side of the connecting groove.
[0007] Wherein, the winding bin is fixedly connected to the anti-seepage plate body, and a plurality of the guide rods are parallel to the anti-seepage plate body.
[0008] Wherein, a plurality of fixing blocks are provided on the anti-seepage plate body, and one end of a plurality of the guide rods away from the winding bin is fixedly connected to the fixing blocks.
[0009] Wherein, a plurality of through holes are provided on the buoyancy bar, and the guide rod is located inside the through holes.
[0010] Wherein, the buoyancy bar is parallel to the winding bin, and a plurality of the fixing blocks are parallel to the winding bin.
[0011] The beneficial effects of the present invention are as follows: the surface of the anti-seepage plate body can be covered by the sunshade film, thereby preventing the anti-seepage performance of the anti-seepage plate body from being reduced due to long-term exposure to sunlight, and the water retaining assembly can move with the water level, so that the sunshade film can always cover the part of the anti-seepage plate body located on the water surface, ensuring the effect of blocking sunlight, and at the same time it is also beneficial to reduce the impact force of the water flow, avoiding the adverse effects of the water flow on the water retaining assembly, the sunshade film and the winding bin.
[0012] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0014] Figure 2 This is a side structural diagram of the present utility model;
[0015] Figure 3 This is a schematic cross-sectional view of the winding bin in the present invention;
[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the water retaining assembly in the utility model;
[0017] In the figure: 1. Anti-seepage plate body; 11. Fixed block; 2. Winding bin; 21. Torsion spring shaft; 22. Through groove; 23. Connecting groove; 231. Guide shaft; 24. Guide rod; 3. Sunshade film; 4. Water retaining assembly; 41. Buoyancy bar; 411. Through hole; 42. Arc plate. DETAILED DESCRIPTION
[0018] See also Figure 1-Figure 4The utility model provides the following technical solutions: it includes an anti-seepage plate body 1, which is characterized in that: a winding bin 2 is provided on the top of the anti-seepage plate body 1, a torsion spring shaft 21 is provided on the inner side of the winding bin 2, and a sunshade film 3 is provided on the outer side of the torsion spring shaft 21. A plurality of guide rods 24 are provided on one side of the winding bin 2, and a water retaining assembly 4 is slidably connected to the plurality of guide rods 24. The water retaining assembly 4 includes a buoyancy bar 41 and an arc plate 42. The buoyancy bar 41 is slidably connected to the plurality of guide rods 24, and the arc plate 42 is fixedly connected to the buoyancy bar 41. The side of the sunshade film 3 away from the winding bin 2 is fixedly connected to the buoyancy bar 41.
[0019] In this embodiment: it includes an anti-seepage plate body 1, the anti-seepage plate body 1 is made of concrete, and a winding bin 2 is provided on the top of the anti-seepage plate body 1. The winding bin 2 is located on the outside of the anti-seepage plate body 1, and the winding bin 2 is in a horizontal state. A torsion spring shaft 21 is provided on the inner side of the winding bin 2, and the torsion spring shaft 21 is rotatably connected on the inner side of the winding bin 2. A sunshade film 3 is provided on the outer side of the torsion spring shaft 21. The sunshade film 3 is wrapped on the outer side of the torsion spring shaft 21. The sunshade film 3 can be wound and unwound by the torsion spring shaft 21. When one side of the sunshade film 3 is subjected to tension, the torsion spring shaft 21 will rotate to unwind the sunshade film 3, and when the tension on the torsion spring shaft 21 becomes smaller, the torsion spring shaft 21 will automatically wind up the sunshade film 3. One side of the winding bin 2 is provided with There are several guide rods 24, one end of which is fixedly connected to the winding bin 2, and the distances between the several guide rods 24 are the same, and the several guide rods 24 are parallel to each other. A water-retaining assembly 4 is slidably connected to the several guide rods 24. Through the guidance of the guide rods 24, the water-retaining assembly 4 can only move linearly along the guide rods 24. The water-retaining assembly 4 includes a buoyancy bar 41 and an arc plate 42. The buoyancy bar 41 has a certain buoyancy, but the pulling force of the torsion spring shaft 21 on the sunshade film 3 is less than the gravity of the water-retaining assembly 4. Therefore, the torsion spring shaft 21 will not affect the position of the water-retaining assembly 4. Therefore, the water-retaining assembly 4 will move with the rise and fall of the water level, and at the same time, the torsion spring shaft 21 will reel or unreel the sunshade film 3 with the movement of the water-retaining assembly 4. When the water level of the water retaining assembly 4 drops, the sunshade film 3 will be pulled outward, and the torsion spring shaft 21 will unwind the sunshade film 3. When the water level of the water retaining assembly 4 rises, the excess part of the sunshade film 3 will be rolled up into the inside of the winding bin 2 by the torsion spring shaft 21, which is conducive to ensuring that the sunshade film 3 between the winding bin 2 and the water retaining assembly 4 always remains flat. The sunshade film 3 has light-blocking properties, and the sunshade film 3 can cover the anti-seepage board body 1 below, thereby preventing the long-term exposure to sunlight from causing adverse effects on the anti-seepage board body 1. The buoyancy bar 41 is slidably connected to a number of guide rods 24, and the buoyancy bar 41 can be guided by a number of guide rods 24 to prevent the buoyancy bar 41 from tilting during the movement. When the buoyancy bar 41 moves up and down, the position of the side of the sunshade film 3 away from the winding bin 2 will rise or fall, so that the sunshade film 3 can always cover the anti-seepage board body 1.This helps reduce the impact of sunlight on the anti-seepage board body 1. The sunshade film 3 can cover the surface of the anti-seepage board body 1, preventing the anti-seepage performance of the anti-seepage board body 1 from being reduced due to long-term sunlight exposure. The water retaining assembly 4 can move with the water level, so that the sunshade film 3 can always cover the part of the anti-seepage board body 1 above the water surface, ensuring the shielding effect of sunlight. At the same time, it also helps reduce the impact force of the water flow, avoiding the adverse effects of the water flow on the water retaining assembly 4, the sunshade film 3 and the winding bin 2.
[0020] A through slot 22 is provided on one side of the winding bin 2, and the sunshade film 3 is slidably connected to the inner side of the through slot 22; the sunshade film 3 is located on the inner side of the through slot 22, and when the torsion spring shaft 21 winds or unwinds the sunshade film 3, the sunshade film 3 will slide on the inner side of the through slot 22.
[0021] Connecting grooves 23 are provided on both sides of the through groove 22 , and guide shafts 231 are provided on the inner sides of the connecting grooves 23 ; the sunshade film 3 is located between the two guide shafts 231 , and the rotation of the guide shafts 231 can reduce the friction force on the sunshade film 3 when sliding.
[0022] The winding bin 2 is fixedly connected to the anti-seepage plate body 1 , and several guide rods 24 are parallel to the anti-seepage plate body 1 ; the guide rods 24 have the same inclination angle as the anti-seepage plate body 1 , so the water retaining assembly 4 will move along the inclination angle of the anti-seepage plate body 1 .
[0023] Several fixed blocks 11 are provided on the anti-seepage plate body 1, and several guide rods 24 are fixedly connected to the fixed block 11 at one end away from the winding bin 2; the fixed block 11 is fixedly connected to the anti-seepage plate body 1, and the two ends of the guide rod 24 are fixed by the fixed block 11 and the winding bin 2.
[0024] Several through holes 411 are provided on the buoyancy bar 41, and the guide rod 24 is located on the inner side of the through holes 411; the through holes 411 are arranged equidistantly, and the size of the through holes 411 matches that of the guide rod 24. The buoyancy bar 41 can slide on the outside of the guide rod 24 through the connection between the guide rod 24 and the through holes 411.
[0025] The buoyancy bar 41 is parallel to the winding bin 2, and several fixed blocks 11 are parallel to the winding bin 2; since the buoyancy bar 41 is parallel to the winding bin 2, when the water retaining assembly 4 moves, the side where the sunshade film 3 is connected to the water retaining assembly 4 is also always parallel to the winding bin 2, which is beneficial to ensure the flatness of the sunshade film 3.
[0026] The working principle and use process of the present invention are as follows: when in use, the buoyancy bar 41 has a certain buoyancy, so the water retaining assembly 4 will move with the rise and fall of the water level, and at the same time, the torsion spring shaft 21 will reel or unreel the sunshade film 3 as the water retaining assembly 4 moves. When the water retaining assembly 4 drops as the water level drops, the sunshade film 3 will be pulled outward, and the torsion spring shaft 21 will unreel the sunshade film 3. When the water retaining assembly 4 rises as the water level rises, the excess part of the sunshade film 3 will be reeled to the torsion spring shaft 21. The interior of the winding bin 2 is conducive to ensuring that the sunshade film 3 located between the winding bin 2 and the water retaining assembly 4 always remains flat. The sunshade film 3 has light-shielding properties, and the anti-seepage plate body 1 below can be covered by the sunshade film 3. At the same time, the arc plate 42 will intercept the water flow, so that the water flow will contact the arc plate 42 when flushing upward. The curvature of the arc plate 42 reduces the impact force of the water flow, and at the same time changes the direction of the water flow, so that the water flow flows upward along the direction of the arc plate 42.
Claims
1. An anti-seepage plate for water conservancy projects, comprising an anti-seepage plate body (1), characterized in that: A winding bin (2) is provided on the top of the anti-seepage plate body (1), a torsion spring shaft (21) is provided on the inner side of the winding bin (2), a sunshade film (3) is provided on the outer side of the torsion spring shaft (21), a plurality of guide rods (24) are provided on one side of the winding bin (2), a water retaining assembly (4) is slidably connected to the plurality of guide rods (24), the water retaining assembly (4) includes a buoyancy bar (41) and an arc plate (42), the buoyancy bar (41) is slidably connected to the plurality of guide rods (24), the arc plate (42) is fixedly connected to the buoyancy bar (41), and the sunshade film (3) is fixedly connected to the buoyancy bar (41) on the side away from the winding bin (2).
2. The anti-seepage plate for water conservancy projects according to claim 1, characterized in that: A through slot (22) is provided on one side of the winding bin (2), and the sunshade film (3) is slidably connected to the inner side of the through slot (22).
3. The anti-seepage plate for water conservancy projects according to claim 2, characterized in that: Connecting grooves (23) are provided on both sides of the through groove (22), and a guide shaft (231) is provided on the inner side of the connecting groove (23).
4. The anti-seepage plate for water conservancy projects according to claim 3, characterized in that: The winding bin (2) is fixedly connected to the anti-seepage plate body (1), and a plurality of guide rods (24) are parallel to the anti-seepage plate body (1).
5. The anti-seepage plate for water conservancy projects according to claim 4, characterized in that: A plurality of fixed blocks (11) are provided on the anti-seepage plate body (1), and one end of a plurality of guide rods (24) away from the winding bin (2) is fixedly connected to the fixed blocks (11).
6. The anti-seepage plate for water conservancy projects according to claim 5, characterized in that: The buoyancy strip (41) is provided with a plurality of through holes (411), and the guide rod (24) is located inside the through holes (411).
7. The anti-seepage plate for water conservancy projects according to claim 6, characterized in that: The buoyancy strip (41) is parallel to the winding bin (2), and a plurality of the fixing blocks (11) are parallel to the winding bin (2).