A water stop device capable of automatic lifting

Abstract

This invention relates to the field of flood control equipment, specifically to an automatically lifting and lowering water-stopping device. It includes a ground foundation, a float slidably mounted vertically on the wall of a strip groove a, a water-stopping plate vertically mounted on the float and inserted into the strip groove b, a counterweight mounted at the bottom of the float via a connecting rope, an air chamber located on the side of the counterweight, a water inlet and a through hole a on the ground foundation, and an inflation / deflation assembly for inflating or deflating the air chamber. The assembly inflates the air chamber when the water level is higher than the top of the through hole a, and deflates the air chamber when the water level is lower than the through hole a. The buoyancy of the float is less than the weight of the counterweight. When the air chamber is inflated, the buoyancy of the float plus the buoyancy of the air chamber is greater than the weight of the counterweight. In this invention, the water-stopping mechanism only activates when the water level rises to a certain height, minimizing the impact on passage. Furthermore, when the water level drops, the air chamber deflates, and the water-stopping plate quickly retracts, facilitating rapid passage after the water level decreases.

Description

Technical Field

[0001] This invention relates to the field of flood control equipment, and more particularly to an automatically lifting and lowering water-stopping device. Background Technology

[0002] Automatically lifting water-stopping devices are devices that can automatically rise and fall to block water flow. When the water level rises, the waterproof structure automatically rises, and together with some sealing mechanisms, it can automatically achieve the water-blocking effect without human control, and can play a very good flood prevention role in the first place.

[0003] Chinese patent CN218597068U discloses an automatically rising and lowering water-stopping structure. When encountering floods or rising water levels, the water-stopping wall of the structure will automatically rise under the action of buoyancy to block the flood, thereby achieving the purpose of flood prevention and protecting people's lives and property. When the water level drops, the water-stopping wall will also drop with the water level, so as not to affect the other functions of the ground foundation of the water-stopping structure.

[0004] However, the publicly available solutions have the following shortcomings: Many entrance-level water-stop structures need to automatically rise to stop water flow during periods of rising water or heavy rainfall. However, to ensure proper passage, the water-stop structure needs to be lowered promptly after the water recedes to restore passage. The publicly available solutions only allow the water-stop structure to fully retract when the water level drops to a certain level (below the water passage), preventing immediate restoration of passage (when the water level is between the foundation top and the water passage, the water-stop wall will still partially rise, preventing complete restoration of passage). Furthermore, existing technologies typically require manual drainage or the design of automatic drainage systems. Both manual and automatic drainage systems require manual operation, which can easily disrupt passage due to delayed operation. Summary of the Invention

[0005] The purpose of this invention is to address the problem in the prior art that water-stopping devices cannot retract in time after the water recedes, requiring manual drainage to lower them below ground level, and to propose an automatically lifting water-stopping device.

[0006] On one hand, the present invention proposes an automatically lifting water-stopping device, including a ground foundation, the outer side of which is the water-facing surface, and strip grooves b and a connected from top to bottom on the ground foundation, wherein the horizontal cross-section of strip groove a is larger than that of strip groove b; it also includes a float plate slidably mounted on the wall of strip groove a in the vertical direction, a water-stopping plate vertically mounted on the float plate and inserted into strip groove b, a counterweight block mounted at the bottom of the float plate by a connecting rope, an air chamber mounted on the side of the counterweight block, a water inlet hole and a through hole a mounted on the ground foundation, and an air-inflating or deflation assembly for inflating or deflating the air chamber;

[0007] The counterweight contacts the bottom of the strip groove a; both the water inlet and the through hole a are inclined, with the top of both forming an opening on the water-facing surface and the bottom communicating with the top of the strip groove a; the air filling and deflation assembly inflates the air chamber when the water level is higher than the top of the through hole a, and deflates the air in the air chamber when the water level is lower than the through hole a. When the strip groove a is filled with water, the buoyancy of the float is less than the weight of the counterweight; when the air chamber is inflated, the buoyancy of the float plus the buoyancy of the air chamber is greater than the weight of the counterweight.

[0008] Preferably, multiple guide posts are arranged around the counterweight, and vertical guide holes a are provided on the guide posts. Multiple guide rods a are vertically arranged at the bottom of the strip groove a, and the guide rods a pass through the guide holes a.

[0009] Preferably, a sealing ring is provided on the upper surface edge of the float plate, and when the float plate floats to the top of the strip groove a, the sealing ring makes sealing contact with the top of the strip groove a.

[0010] Preferably, multiple guide holes b are vertically arranged on the floating plate, and multiple guide rods b with a 90-degree bend are arranged on the wall of the strip groove a, with the vertical section of the guide rod b passing through the guide hole b.

[0011] Preferably, the inflation / deflation assembly includes a piston that is slidably disposed in the through hole a, a fixed plate that is sealed at the bottom of the through hole a, a hose that connects the fixed plate and the air chamber, and springs that are connected to the fixed plate and the piston at both ends respectively; multiple sets of inflation / deflation assemblies are provided; when the water level is higher than the top of the through hole a, the piston moves down, the spring is compressed, the gas between the piston and the fixed plate is forced into the air chamber, and the counterweight and the float rise upward.

[0012] Preferably, the inflation / deflation assembly includes a piston that is slidably disposed within the through hole a, a fixed plate that is sealed at the bottom of the through hole a, a hose that connects the fixed plate and the air chamber, a movable plate disposed at the bottom of the piston, a fixed rod disposed on the wall of the through hole a, and a coil spring sleeved on the fixed rod; one end of the coil spring is connected to the fixed rod, and the other end of the coil spring is connected to the movable plate; multiple sets of the inflation / deflation assembly are provided; when the water level is higher than the top of the through hole a, the piston and the movable plate move downward, the coil spring twists, the gas between the piston and the fixed plate is forced into the air chamber, and the counterweight and the float rise upward.

[0013] Preferably, a filter plate a is provided on the water-facing surface, the filter plate a blocks the water inlet of the water inlet hole, and a through hole b is provided on the filter plate a, with the through hole b opposite to the through hole a.

[0014] Preferably, when the water-stopping device is applied to an automatic water-stopping scenario on a road surface, it further includes a filter plate b that is inclined downwards and installed on the top of the ground foundation and connected to the road surface at the bottom, and multiple support plates that are installed on the road surface and connected to the filter plate b at the top.

[0015] On the other hand, the present invention proposes a water-stopping method for an automatically lifting and lowering water-stopping device, comprising the following steps:

[0016] S1. When the ground foundation is laid on both sides of the water body and applied to road surface water stop, filter plate b and support plate also need to be installed.

[0017] S2. When the water level rises above the through hole a, water enters the strip groove a and strip groove b through the water inlet hole. At the same time, the water enters the through hole a and applies pressure to the piston through the pressure of the water, causing the piston to move downward. This forces the gas between the piston and the fixed plate into the gas chamber, while the spring is compressed or the coil spring is twisted to store energy.

[0018] S3, the buoyancy of the float and the air chamber together causes the counterweight to float up, and the waterstop plate extends out of the strip groove b to achieve water stop;

[0019] S4. After the water level drops below the through hole a, the spring and coil spring release energy, the piston moves upward to extract the gas in the air chamber, and under the action of the counterweight, it pulls the float and waterstop plate downward. The waterstop plate retracts back into the ground foundation, enabling rapid passage.

[0020] Compared with existing technologies, the present invention has the following beneficial technical effects: By setting up an air inflation / deflation component, the air chamber can be inflated when the water level is higher than through hole a. Then, the counterweight is lifted by the air chamber and the float plate to achieve water stop. The water stop is only activated when the water level rises to a certain height, minimizing the impact of obstructing passage. When the water level drops below through hole a, the air chamber deflates, and the counterweight pulls the float plate and water stop plate to retract quickly. The water stop action of the water stop plate can be automatically released without draining the water in the strip grooves a and b, thereby facilitating rapid passage after the water level drops. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;

[0022] Figure 2 for Figure 1 A cross-sectional view of the ground foundation;

[0023] Figure 3 for Figure 2 A schematic diagram of the structure without filter plate a;

[0024] Figure 4 for Figure 3 A cross-sectional view of the ground foundation;

[0025] Figure 5 This is a schematic diagram of the structure of Embodiment 4 of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of Embodiment 5 of the present invention;

[0027] Reference numerals in the attached diagram: 1. Ground foundation; 2. Water-facing surface; 3. Strip groove a; 4. Strip groove b; 5. Counterweight block; 6. Guide column; 7. Guide rod a; 8. Connecting rope; 9. Float plate; 10. Sealing ring; 11. Guide rod b; 12. Waterstop plate; 13. Air chamber; 14. Water inlet hole; 15. Through hole a; 16. Piston; 17. Fixing plate; 18. Hose; 19. Spring; 20. Moving plate; 21. Fixing rod; 22. Coil spring; 23. Filter plate a; 24. Through hole b; 25. Road surface; 26. Filter plate b; 27. Support plate. Detailed Implementation

[0028] Example 1, such as Figures 1-2 As shown, the present invention proposes an automatically lifting water-stopping device, including a ground foundation 1, the outer side of the ground foundation 1 being the water-facing surface 2, and strip grooves b4 and a3 connected from top to bottom on the ground foundation 1, the horizontal cross-section of strip groove a3 being larger than the horizontal cross-section of strip groove b4; it also includes a float plate 9 slidably disposed on the wall of strip groove a3 in the vertical direction, a water-stopping plate 12 vertically disposed on the float plate 9 and inserted into strip groove b4, a counterweight block 5 disposed at the bottom of the float plate 9 by a connecting rope 8, an air chamber 13 disposed on the side of the counterweight block 5, a water inlet hole 14 and a through hole a15 disposed on the ground foundation 1, and an air inflation or deflation assembly for inflating or deflation of the air chamber 13;

[0029] The counterweight 5 is in contact with the bottom of the strip groove a3; the water inlet hole 14 and the through hole a15 are both inclined, and the top of the water inlet hole 14 and the through hole a15 are both open on the water-facing surface 2, and the bottom of both are connected to the top of the strip groove a3; the air filling and defilling component fills the air chamber 13 when the water level is higher than the top of the through hole a15, and discharges the air in the air chamber 13 when the water level is lower than the through hole a15. When the strip groove a3 is filled with water, the buoyancy of the float 9 is less than the weight of the counterweight 5. When the air chamber 13 is filled with air, the buoyancy of the float 9 plus the buoyancy of the air chamber 13 is greater than the weight of the counterweight 5.

[0030] Working principle: The ground foundation 1 is placed on both sides of the water body. When the water level rises above the through hole a15, water enters the strip grooves a3 and b4 through the inlet hole 14. At the same time, the air chamber 13 is inflated by the air inflation / deflation assembly. Under the combined buoyancy of the float 9 and the air chamber 13, the counterweight 5 floats up, and the waterstop plate 12 extends out of the strip groove b4 to stop the water. When the water level drops below the through hole a15, the air inflation / deflation assembly extracts the gas from the air chamber 13. Under the gravity of the counterweight 5, the float 9 and the waterstop plate 12 move down, and the waterstop plate 12 retracts back into the ground foundation 1, achieving rapid retraction of the waterstop plate 12 and thus enabling rapid passage.

[0031] In this embodiment, by setting up an air inflation / deflation assembly, the air chamber 13 can be inflated when the water level is higher than the through hole a15. Then, the counterweight 5 is lifted by the air chamber 13 and the float 9 to achieve water stop. The water stop is activated only when the water level rises to a certain height. When the water level drops below the through hole a15, the air chamber 13 deflates, and the counterweight 5 pulls the float 9 and the water stop plate 12 to retract quickly. The water stop action of the water stop plate 12 can be automatically released without draining the water in the strip grooves a3 and b4, thus facilitating rapid passage after the water level drops.

[0032] Example 2, as follows Figure 2 As shown, the present invention proposes an automatically lifting and lowering water-stopping device. Compared with Embodiment 1, the counterweight 5 has multiple guide posts 6 arranged around its perimeter, with vertical guide holes a on the guide posts 6. Multiple guide rods a7 are vertically arranged at the bottom of the strip groove a3, and the guide rods a7 pass through the guide holes a. A filter plate a23 is arranged on the water-facing surface 2, blocking the water inlet of the water inlet hole 14. A through hole b24 is provided on the filter plate a23, which is opposite to the through hole a15. The guide rods a7 ensure the vertical lifting and lowering of the counterweight 5, improving stability.

[0033] like Figure 4 As shown, a sealing ring 10 is further provided on the edge of the upper surface of the float plate 9. When the float plate 9 floats to the top of the strip groove a3, the sealing ring 10 makes sealing contact with the top of the strip groove a3. Multiple guide holes b are vertically provided on the float plate 9, and multiple guide rods b11 bent at ninety degrees are provided on the wall of the strip groove a3. The vertical sections of the guide rods b11 pass through the guide holes b. When the float plate 9 floats to its highest position, it achieves a seal by contacting the top of the strip groove a3 with the sealing ring 10, preventing water from flowing into the water-stopping area through the strip groove b4. The horizontal section of the guide rod b11 is used to limit the lowest point position of the float plate 9, and the vertical section of the guide rod b11 is used to limit the vertical rise and fall of the float plate 9, improving the stability of the float plate 9's rise and fall.

[0034] Example 3, as follows Figure 3 and Figure 4 As shown, the present invention proposes an automatically lifting water-stopping device. Compared with Embodiment 1, the air-inflation assembly includes a piston 16 that is slidably disposed in the through hole a15, a fixed plate 17 that is sealed at the bottom of the through hole a15, a hose 18 that connects the fixed plate 17 and the air chamber 13, and a spring 19 whose two ends are respectively connected to the fixed plate 17 and the piston 16; multiple sets of air-inflation assemblies are provided; when the water level is higher than the top of the through hole a15, the piston 16 moves down, the spring 19 is compressed, the gas between the piston 16 and the fixed plate 17 is forced into the air chamber 13, and the counterweight 5 and the float 9 rise upward.

[0035] In this embodiment, when the water level rises above the through hole a15, water enters the strip grooves a3 and b4 through the inlet hole 14. Simultaneously, the water entering through hole a15 exerts pressure on piston 16, causing it to move downwards. This forces the gas between piston 16 and fixed plate 17 into air chamber 13. At the same time, spring 19 stores energy under pressure. The buoyancy of float plate 9 and air chamber 13 together causes counterweight 5 to float upwards, and waterstop plate 12 extends out of strip groove b4 to stop the water flow. When the water level drops below the through hole a15, spring 19 releases energy, piston 16 moves upwards to extract gas from air chamber 13, and the weight of counterweight 5 pulls float plate 9 and waterstop plate 12 downwards. Waterstop plate 12 retracts back into the ground foundation 1, enabling rapid passage without the need for manual drainage or an automated drainage system. The installation is simple and allows for rapid retraction of waterstop plate 12, thus facilitating passage.

[0036] Example 4, as follows Figure 5 As shown, the present invention proposes an automatically lifting and lowering water-stopping device. Compared with Embodiment 1, the air-filling and deflation assembly includes a piston 16 that is slidably disposed in the through hole a15, a fixed plate 17 that is sealed at the bottom of the through hole a15, a hose 18 that connects the fixed plate 17 and the air chamber 13, a movable plate 20 disposed at the bottom of the piston 16, a fixed rod 21 disposed on the wall of the through hole a15, and a coil spring 22 sleeved on the fixed rod 21; one end of the coil spring 22 is connected to the fixed rod 21, and the other end of the coil spring 22 is connected to the movable plate 20; multiple sets of air-filling and deflation assemblies are provided; when the water level is higher than the top of the through hole a15, the piston 16 and the movable plate 20 move downward, the coil spring 22 twists, the gas between the piston 16 and the fixed plate 17 is forced into the air chamber 13, and the counterweight 5 and the float 9 rise upward.

[0037] In this embodiment, when the water level rises above the through hole a15, water enters the strip grooves a3 and b4 through the inlet hole 14. Simultaneously, the water entering through hole a15 exerts pressure on piston 16, causing it to move downwards. This forces the gas between piston 16 and the fixed plate 17 into the air chamber 13. At the same time, the coil spring 22 twists to store energy. The buoyancy of the float plate 9 and the air chamber 13 together causes the counterweight 5 to float upwards, and the waterstop plate 12 extends out of the strip groove b4 to stop the water flow. When the water level drops below the through hole a15, the coil spring 22 releases energy, and piston 16 moves upwards to extract the gas from the air chamber 13. Under the weight of the counterweight 5, the float plate 9 and the waterstop plate 12 move downwards, and the waterstop plate 12 retracts back into the ground foundation 1, enabling rapid passage. This eliminates the need for manual drainage or an automated drainage system, simplifying the installation and allowing for quick retraction of the waterstop plate 12 for passage.

[0038] Example 5, as Figure 6As shown, the water-stopping device proposed in this invention can be automatically raised and lowered. Compared with Embodiment 1, when the water-stopping device is applied to the automatic water-stopping scenario of the road surface, it also includes a road surface 25 that is lower than the top of the through hole a15, a filter plate b26 that is inclined downward and set on the top of the ground foundation 1 and connected to the road surface 25 at the bottom, and a plurality of support plates 27 that are set on the road surface 25 and connected to the filter plate b26 at the top.

[0039] In this embodiment, when floods or heavy rainfall occur and the water on the road surface cannot be drained in time, the water level on the road surface rises above the through hole a15. Water enters the strip groove a3 and strip groove b4 through the water inlet hole 14. At the same time, the water enters the through hole a15 and applies pressure to the piston 16 through the pressure of the water, causing the piston 16 to move downward. This forces the gas between the piston 16 and the fixed plate 17 into the air chamber 13. Meanwhile, the spring 19 is compressed or the coil spring 22 is twisted to store energy. The buoyancy of the float plate 9 and the air chamber 13 together causes the counterweight 5 to float upward. The water-stop plate 12 extends out of the strip groove b4 to stop the water. When the water level drops below the through hole a15, the spring 19 and the coil spring 22 release energy, the piston 16 moves upward to extract the gas in the air chamber 13, and under the gravity of the counterweight 5, the float 9 and the waterstop 12 are pulled down. The waterstop 12 retracts back into the ground foundation 1, enabling rapid passage. No manual auxiliary drainage is required, nor is an automated drainage system. The layout is simple and can quickly achieve the retraction of the waterstop 12, thus enabling passage.

[0040] Example 6: A water-stopping method based on the above-described embodiment of an automatically lifting water-stopping device includes the following steps:

[0041] S1. When the ground foundation 1 is arranged on both sides of the water body and applied to road surface water stop, filter plate b26 and support plate 27 also need to be installed.

[0042] S2. When the water level rises above the through hole a15, water enters the strip groove a3 and strip groove b4 through the water inlet hole 14. At the same time, the water enters the through hole a15 and applies pressure to the piston 16 through the water pressure, causing the piston 16 to move downward. This forces the gas between the piston 16 and the fixed plate 17 into the air chamber 13. Meanwhile, the spring 19 is compressed or the coil spring 22 is twisted to store energy.

[0043] Under the combined buoyancy of S3, float 9 and air chamber 13, the counterweight 5 floats up, and the waterstop plate 12 extends out of the strip groove b4 to achieve water stop;

[0044] S4. After the water level drops below the through hole a15, the spring 19 and the coil spring 22 release energy, the piston 16 moves upward to extract the gas in the air chamber 13, and under the gravity of the counterweight 5, it pulls the float 9 and the waterstop 12 downward. The waterstop 12 retracts back into the ground foundation 1 to achieve rapid passage.

[0045] In this embodiment, by setting up an air inflation / deflation assembly, the air chamber 13 can be inflated when the water level is higher than the through hole a15. Then, the counterweight 5 is lifted by the air chamber 13 and the float 9 to achieve water stop. The water stop is only activated when the water level rises to a certain height, minimizing the impact of obstructing passage. When the water level drops below the through hole a15, the air chamber 13 deflates, and the counterweight 5 pulls the float 9 and the water stop plate 12 to retract quickly. The water stop action of the water stop plate 12 can be automatically released without draining the water in the strip grooves a3 and b4, thus facilitating rapid passage after the water level drops.

[0046] The 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. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An automatically lifting water-stopping device, comprising a ground foundation (1), the outer side of the ground foundation (1) being a water-facing surface (2), and strip grooves b (4) and a (3) being connected from top to bottom on the ground foundation (1), wherein the horizontal cross-section of strip groove a (3) is larger than the horizontal cross-section of strip groove b (4); characterized in that, It also includes a float plate (9) that slides vertically on the wall of the strip groove a (3), a waterstop plate (12) that is vertically set on the float plate (9) and inserted into the strip groove b (4), a counterweight block (5) set at the bottom of the float plate (9) by a connecting rope (8), an air chamber (13) set on the side of the counterweight block (5), a water inlet hole (14) and a through hole a (15) set on the ground foundation (1), and an air filling or deflating assembly for filling or deflating the air chamber (13); The counterweight (5) contacts the bottom of the strip groove a (3); the water inlet hole (14) and the through hole a (15) are both inclined, and the top of the water inlet hole (14) and the through hole a (15) are both formed on the water-facing surface (2), and the bottom of both are connected to the top of the strip groove a (3); the air filling and releasing component fills the air chamber (13) when the water level is higher than the top of the through hole a (15), and releases the air in the air chamber (13) when the water level is lower than the through hole a (15). When the strip groove a (3) is filled with water, the buoyancy of the float plate (9) is less than the weight of the counterweight (5). When the air chamber (13) is filled with air, the buoyancy of the float plate (9) plus the buoyancy of the air chamber (13) is greater than the weight of the counterweight (5). The inflation / deflation assembly includes a piston (16) that is slidably disposed in the through hole a (15), a fixed plate (17) that is sealed at the bottom of the through hole a (15), a hose (18) that connects the fixed plate (17) and the air chamber (13), a movable plate (20) disposed at the bottom of the piston (16), a fixed rod (21) disposed on the wall of the through hole a (15), and a coil spring (22) sleeved on the fixed rod (21); one end of the coil spring (22) is connected to the fixed rod (21), and the other end of the coil spring (22) is connected to the movable plate (20); multiple sets of inflation / deflation assemblies are provided; when the water level is higher than the top of the through hole a (15), the piston (16) and the movable plate (20) move down, the coil spring (22) twists, the gas between the piston (16) and the fixed plate (17) is forced into the air chamber (13), and the counterweight (5) and the float (9) rise upward.

2. The automatically lifting water-stopping device according to claim 1, characterized in that, Multiple guide posts (6) are set around the counterweight (5), and vertical guide holes a are set on the guide posts (6). Multiple guide rods a (7) are set vertically at the bottom of the strip groove a (3), and the guide rods a (7) pass through the guide holes a.

3. The automatically lifting water-stopping device according to claim 1, characterized in that, A sealing ring (10) is provided on the edge of the upper surface of the float plate (9). When the float plate (9) floats up to the top of the strip groove a (3), the sealing ring (10) is in sealing contact with the top of the strip groove a (3).

4. The automatically lifting water-stopping device according to claim 1, characterized in that, Multiple guide holes b are vertically set on the floating plate (9), and multiple guide rods b (11) with ninety degrees bend are set on the wall of the strip groove a (3). The vertical section of the guide rod b (11) passes through the guide hole b.

5. The automatically lifting water-stopping device according to claim 1, characterized in that, A filter plate a (23) is installed on the water-facing surface (2). The filter plate a (23) blocks the water inlet of the water inlet hole (14). A through hole b (24) is installed on the filter plate a (23). The through hole b (24) is opposite to the through hole a (15).

6. The automatically lifting water-stopping device according to claim 1, characterized in that, When the water-stopping device is applied to the automatic water-stopping scenario of the road surface, it also includes the road surface (25) below the top of the through hole a (15), the filter plate b (26) inclined downward and set on the top of the ground foundation (1) and connected to the road surface (25) at the bottom, and multiple support plates (27) set on the road surface (25) and connected to the filter plate b (26) at the top.

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