Lift overfall device and method of operation

Abstract

The application relates to the technical field of water falling equipment, and particularly discloses a lifting water falling device and an operating method, which comprises a water falling retaining wall, a buoyancy piece, a buoyancy slide rail, a buoyancy control piece and a concrete retaining wall. The concrete retaining wall is in a ladder structure, and the inner parts of at least two steps of the ladder structure are respectively formed into containing cavities. The top of each containing cavity is provided with a strip-shaped through groove. The buoyancy slide rail is installed on the inner side wall of the containing cavity. The buoyancy piece is arranged in the containing cavity and is slidingly arranged on the buoyancy slide rail. The bottom of the water falling retaining wall is connected with the buoyancy piece, and the top of the water falling retaining wall extends out of the containing cavity through the strip-shaped through groove. The buoyancy control piece is used for adjusting the buoyancy of the buoyancy piece, the water falling retaining wall is lifted and lowered according to the buoyancy of the buoyancy piece, and the water falling retaining wall is switched between the water retaining wall and the water falling wall through lifting and lowering. The application can realize dynamic adjustment of water falling, water retaining and water falling height.

Description

Technical Field

[0001] This invention relates to the field of drop shower equipment technology, specifically to a lifting drop shower device and its operating method. Background Technology

[0002] In urban waterways and natural water systems, multi-level cascading retaining walls are often installed to meet drainage and water storage needs. Existing cascading retaining walls are fixed structures, meaning their height is constant and they are static. Their cascading or water-blocking effect is based on the water volume and level of the site. When the water level is higher than the top of the cascading retaining wall, the cascading retaining wall produces a cascading effect; when the water level is lower than the top of the cascading retaining wall, the cascading retaining wall produces a water-blocking effect.

[0003] However, due to differences in rainfall and the summer flood season, traditional cascading retaining walls lack dynamic adjustment capabilities, making them prone to natural disasters such as flooding in some areas; most river systems are wide and the cascading heights are high, resulting in significant noise that greatly affects residents' nighttime rest; traditional cascading retaining walls are simple in form and monotonous in design, which can easily lead to aesthetic fatigue and lack of visual appeal. Summary of the Invention

[0004] The purpose of this invention is to provide a lifting and lowering water drop device and its operation method to achieve dynamic adjustment of the water drop, water blocking, and water drop height; and to solve the problems of local flooding and excessive noise caused by the lack of dynamic adjustment capability of traditional water drop retaining walls.

[0005] This invention is achieved through the following technical solution:

[0006] A lifting drop device includes a drop wall, a buoyancy component, a buoyancy slide rail, a buoyancy control component, and a concrete retaining wall;

[0007] The concrete retaining wall has a stepped structure, and at least two steps in the stepped structure form receiving cavities. The top of the receiving cavity is provided with a strip-shaped through groove.

[0008] The buoyancy rail is installed on the inner wall of the receiving cavity;

[0009] The buoyancy component is disposed within the receiving cavity and is slidably mounted on the buoyancy rail;

[0010] The bottom of the drop wall is connected to the buoyancy component, and the top extends out of the receiving cavity through the strip groove;

[0011] The buoyancy control component is used to adjust the magnitude of the buoyancy force on the buoyancy component, and to realize the raising and lowering of the waterfall barrier according to the magnitude of the buoyancy force on the buoyancy component, thereby switching the waterfall barrier between a water barrier and a waterfall barrier through raising and lowering.

[0012] The buoyancy rail described in this invention allows the buoyancy component to move vertically without horizontal swaying under buoyancy, ensuring that the drop wall only moves vertically (rising or falling).

[0013] The present invention achieves the raising and lowering of the cascading retaining wall not by conventional electric lifting, but by buoyancy lifting. Buoyancy lifting not only allows for dynamic adjustment of the height of the cascading retaining wall according to the height changes of the internal buoyancy components, but also better adapts to the application environment of the cascading retaining wall.

[0014] Because the cascading retaining wall of this invention can rise and fall under the action of buoyancy, the cascading retaining wall can switch between a retaining wall and a cascading wall by rising and falling. When the water level of the river or water system rises due to rainfall, the cascading retaining wall can be lowered to drain water in multiple stages. When water storage is required, under normal rainfall, the height of the cascading device can be raised at night to prevent cascading and to separate the water into multiple still water surfaces, thereby reducing the impact of cascading noise on the normal rest of nearby residents.

[0015] In summary, because the cascading retaining wall of the present invention can rise and fall under the action of buoyancy, the height of the cascading retaining wall can be dynamically adjusted according to the height change of the internal buoyancy components, realizing the dynamic adjustment of the cascading and blocking effect and the height of the cascading device; it solves the problems of local flooding and large cascading noise caused by the lack of dynamic adjustment capability of traditional cascading retaining walls.

[0016] Furthermore, each receiving cavity is equipped with multiple rows of cascading baffles, with the side walls of two adjacent cascading baffles in close contact. Each cascading baffle corresponds to a buoyancy component, and each buoyancy component corresponds to a buoyancy rail. Each cascading baffle can independently rise and fall.

[0017] If each cascade uses a single drop wall to dynamically adjust the drop, blocking, and height of the cascade device through buoyancy-driven raising and lowering, the following issues arise: Firstly, the drop wall is relatively heavy, requiring increased buoyancy to raise and lower it, increasing the difficulty of buoyancy control. Furthermore, the processing and transportation of larger drop walls present challenges. Secondly, drop walls at the same level cannot provide multiple water-dividing effects; they must either raise to block water or lower to drop water.

[0018] Instead of using a single cascading baffle within the containment cavity, this invention employs a row of relatively small cascading baffles. Firstly, because each baffle can rise and fall independently, and the weight of a single baffle is reduced, the buoyancy requirement for its rise is relatively lower, facilitating buoyancy control of the baffle's movement and reducing the difficulty of buoyancy control. Simultaneously, the size of the baffles is also reduced, making processing and transportation easier. Secondly, it allows for control of the rise and fall of different baffles, controlling the combination of different cascading baffles to achieve various water-blocking heights and diverse water-dividing effects.

[0019] Furthermore, the cavity is equipped with multiple baffles, which divide the cavity into multiple chambers. Each chamber is equipped with a drop wall and a buoyancy control component.

[0020] Furthermore, the buoyancy control component is a water supply and drainage pipe; the water supply and drainage pipe is used to introduce or export water or buoyancy filler into the receiving cavity to realize the rising and falling of the drop wall.

[0021] Buoyancy filler is an existing technology that can be obtained commercially; it is a liquid buoyancy filler.

[0022] Furthermore, a limiting device is provided inside the accommodating cavity, which is used to realize the multi-stage rising height of the cascading retaining wall.

[0023] Furthermore, the receiving cavity is provided with water-stop steel plates on both inner side walls in the direction of the water drop, and the water-stop steel plates are coated with waterproof paint, which is used to fill the gap between the water drop retaining wall and the inner wall of the receiving cavity.

[0024] Waterproof coatings and water-stop steel plates can prevent water from naturally seeping into the containment cavity inside the concrete retaining wall.

[0025] Furthermore, one sidewall of the strip-shaped channel is a stepped vertical surface.

[0026] Furthermore, the width of the strip-shaped channel is smaller than the width of the receiving cavity, while the width of the buoyancy element is greater than the width of the strip-shaped channel.

[0027] Furthermore, the cascading retaining wall is made of lightweight, high-strength composite materials.

[0028] High-strength composite materials include aerospace composite materials, titanium alloys, or metal matrix composite materials. The materials used for drop walls can be commercially available.

[0029] The operation method of the above-mentioned lifting and falling water device includes the following steps:

[0030] S1. When water needs to be blocked, the buoyancy of the buoyancy component is increased by the buoyancy control component, so that the top of the waterfall barrier wall is higher than the water surface of the upper level pool. At this time, the waterfall barrier wall acts as a water barrier wall to prevent water from the upper level pool from entering the lower level pool.

[0031] S2. When water blocking is not required, the buoyancy of the buoyancy component is reduced by the buoyancy control component, so that the top of the drop wall is level with the water surface of the upper level pool. At this time, the drop wall acts as a drop wall, allowing the water from the upper level pool to enter the lower level pool.

[0032] In this invention, the cascading retaining wall is vertically arranged, the upper water pool adjacent to the cascading retaining wall is the upper-level water pool, and the upper and lower water pools adjacent to the cascading retaining wall are the lower-level water pools.

[0033] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0034] 1. This invention controls the raising and lowering of the cascading retaining wall by buoyancy, separating multiple water surfaces and reducing the risk of flash floods caused by rainfall in a short period of time, thus reducing flood disasters; at night, by raising the height of the cascading retaining wall, the raising and lowering cascading device does not produce water droplets, separating multiple calm water surfaces and reducing the impact of cascading noise on the normal rest of nearby residents.

[0035] 2. In this invention, each receiving cavity is equipped with multiple rows of cascading baffles. Compared to setting one cascading baffle in one receiving cavity, this greatly reduces the weight of the cascading baffles and makes it easier to control the rise and fall of the cascading baffles through buoyancy. This reduces the difficulty of buoyancy control for raising and lowering. Furthermore, the rise and fall of each cascading baffle can be controlled independently. By controlling the combination of raising and lowering of the cascading devices, various water-blocking effects can be achieved, resulting in various water-dividing and cascading effects, ensuring the best viewing experience. Attached Figure Description

[0036] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0037] Figure 1 This is an isometric structural diagram of the lifting and falling water system of the present invention in the falling water state;

[0038] Figure 2 This is an overall isometric structural diagram of the lifting and lowering drop system of the present invention in the state of water distribution and drop;

[0039] Figure 3 This is an isometric structural diagram of the lifting and dropping water system of the present invention in the water-blocking state;

[0040] Figure 4 This is a cross-sectional schematic diagram of the present invention in a cascading state;

[0041] Figure 5 This is a cross-sectional view of the present invention in its water-blocking state. Figure 1 ;

[0042] Figure 6 This is a cross-sectional view of the present invention in its water-blocking state. Figure 2 ;

[0043] Figure 7 This is a detailed drawing of the connection between the buoyancy component and the slide rail in this invention.

[0044] The attached diagram shows the markings and corresponding component names:

[0045] 1-Waterfall retaining wall, 11-Waterfall wall, 12-Water barrier wall, 2-Buoyancy component, 3-Buoyancy slide rail, 4-Limiting device, 5-Water supply and drainage pipe, 6-Concrete retaining wall, 7-Waterproof coating, 8-Waterstop steel plate, 9-Water, a-Water surface, b-Pool bottom, c-Waterfall direction. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0047] Example 1:

[0048] like Figures 1-7 As shown, a lifting drop device includes a drop wall 1, a buoyancy component 2, a buoyancy slide rail 3, a buoyancy control component, and a concrete retaining wall 6.

[0049] The concrete retaining wall 6 has a stepped structure, with at least two steps forming a receiving cavity inside. The top of the receiving cavity is provided with a strip-shaped through groove. Each step forms a pool, and when water from the upper pool falls to the lower pool, a waterfall effect is created.

[0050] The buoyancy rail 3 is installed on the inner wall of the cavity to ensure that the drop wall 1 rises and falls stably in the vertical direction.

[0051] The buoyancy component 2 is housed within the receiving cavity and slidably mounted on the buoyancy rail 3. The connection method between the buoyancy component 2 and the buoyancy rail 3 is not limited, as long as it allows the buoyancy component 2 to rise and fall on the buoyancy rail 3. For example... Figure 7 As shown, the buoyancy component 2 and the buoyancy slide rail 3 preferably adopt a concave connection to ensure the overall safety performance. The concave connection can be understood as the horizontal cross section of the buoyancy slide rail 3 being a U-shaped groove, and the two side walls of the U-shaped groove extending inward along the horizontal to form a baffle. The two vertical symmetrical side walls of the buoyancy component 2 are provided with slots so that the baffle can be embedded in the slots.

[0052] The bottom of the drop wall 1 is connected to the buoyancy component 2, and the top extends through the strip groove into the receiving cavity; when the drop wall 1 rises to block water, the drop wall 1 acts as a water barrier 12; when the drop wall 1 falls to achieve a drop, the drop wall 1 acts as a drop wall 11.

[0053] The buoyancy control component is used to adjust the buoyancy of the buoyancy component 2. The buoyancy of the buoyancy component 2 is used to raise and lower the water drop wall 1. The water drop wall 1 is switched between the water barrier wall 12 and the water drop wall 11 by raising and lowering.

[0054] In one specific implementation, the buoyancy control component is a water supply and drainage pipe 5. The water supply and drainage pipe 5 is used to introduce or discharge water 9 or buoyancy packing (liquid buoyancy packing) into the receiving cavity, thereby raising and lowering the drop wall 1. When water 9 is introduced into the receiving cavity through the water supply and drainage pipe 5, the buoyancy component 2 is adjusted to rise, and the height of the rise of the buoyancy component 2 increases with the rise of the water level in the receiving cavity. When it is necessary to lower the drop wall 1, the water 9 in the receiving cavity can be discharged through the water supply and drainage pipe 5.

[0055] As the buoyancy component 2 rises, the drop wall 1 rises to form the water barrier 12. If it needs to be restored to the drop wall 11, the internal water needs to be drained through the water supply and drainage pipe 5. After the buoyancy component 2 loses buoyancy, it will descend, and the water barrier 12 will descend to the bottom to form the drop wall.

[0056] The drop retaining wall 1 is preferably made of lightweight, high-strength composite material.

[0057] The design parameters for the drop wall 1 and the buoyancy component 2 can be selected based on the following design equations:

[0058] ρ1xD1xH1+ρ2xD2xH2=ρ liquid xWxH2

[0059] Where ρ1 is the density of the material of the drop wall 1, in kg / m³. 3 D1 is the overall thickness of the material of the drop wall 1, in meters; H1 is the height of the drop wall 1, in meters; ρ2 is the density of the material of the buoyancy component 2, in kilograms per cubic meter of water. 3 D2 is the overall thickness of the buoyancy component 2 material, in meters (m); H2 is the height of the buoyancy component 2, in meters (m); ρliquid is the density of water or buoyancy filler 9, in kilograms per cubic meter of water. 3 W represents the width of buoyancy component 2, in meters. The above design equations are used to select appropriate materials, width, and height to meet the design requirements.

[0060] In a preferred embodiment, a limiting device 4 is installed within the accommodating cavity. This limiting device 4 is used to achieve multi-level rising heights of the cascading retaining wall 1. The number of levels of the limiting device 4 can be determined according to actual conditions, and the limiting method can be adjusted accordingly. Specifically, the limiting device 4 is a telescopic rod. When not in use, the telescopic rod is placed inside the concrete retaining wall 6. When the limiting device 4 is needed, it is adjusted according to the rising height, extending one end of the corresponding level of the limiting device 4 so that it is positioned above the buoyancy member 2. A contact sensor is installed at the end of the telescopic rod positioned above the buoyancy member 2. The contact sensor is electrically connected to the controller, and the valve on the water supply and drainage pipe 5 is also electrically connected to the controller. When the buoyancy member 2 rises to contact the contact sensor, it sends a signal back to the controller, which then controls the valve on the water supply and drainage pipe 5 to close, stopping water intake. This achieves control of the rising height of the buoyancy member 2 using the limiting device 4.

[0061] In a preferred embodiment, one sidewall of the strip channel is a stepped vertical surface; such as... Figures 4-6 As shown, the distance between one side of the strip-shaped through groove and the vertical surface of the stepped structure is zero.

[0062] In a preferred embodiment, the width of the strip groove is smaller than the width of the receiving cavity, and the width of the buoyancy member 2 is larger than the width of the strip groove.

[0063] Specifically, to prevent water from naturally seeping into the receiving cavity within the concrete retaining wall 6, water-stop steel plates 8 are installed on both inner walls of the receiving cavity in the direction of the waterfall. Water-stop steel plates 8 are coated with a waterproof coating 7, which can be either JS waterproof coating or acrylic waterproof coating, both commercially available. The waterproof coating 7 is used to fill the gap between the waterfall retaining wall 1 and the inner wall of the receiving cavity. Preferably, the tops of the waterproof coating 7 on both sides of the waterfall retaining wall 1 are flush with the bottoms of the upper and lower water tanks, respectively. The upper and lower water tanks are relative, with the upper tank being a tank with a relatively higher water level. In the attached diagram, a represents the water level, b represents the bottom of the tank, and c represents the direction of the waterfall.

[0064] In this embodiment, at least two steps in the stepped structure each form an internal receiving cavity; that is, all steps may be equipped with a cascading retaining wall 1, or only some steps may be equipped with a cascading retaining wall 1. For example, as... Figures 1-3 As shown, the concrete retaining wall 6 has 4 steps, which are referred to as the first step, the second step, the third step, and the fourth step from bottom to top. Water drop retaining walls 1 can be set on the first step, the second step, and the third step, or on the first step and the third step, or on the first step and the second step.

[0065] The operation method of the lifting and dropping water device described in this embodiment includes the following steps:

[0066] S1. When water needs to be blocked, water 9 is introduced into the receiving cavity through the water supply and drainage pipe 5. The buoyancy component 2 rises under the action of buoyancy, so that the drop wall 1 rises to the top of the drop wall 1 above the water surface of the upper level pool. At this time, the drop wall 1 acts as a water barrier 12 to prevent the water from the upper level pool from entering the lower level pool.

[0067] S2. When water blocking is not required, the water 9 in the receiving cavity is discharged through the water supply and drainage pipe 5, so that the drop wall 1 drops down to the top of the drop wall 1 being level with the water surface of the upper level water tank. At this time, the drop wall 1 acts as a drop wall 11, allowing the water from the upper level water tank to enter the lower level water tank.

[0068] The drop wall 1 in this embodiment can rise and fall under the action of buoyancy. The height of the drop wall 1 can be dynamically adjusted according to the height change of the internal buoyancy component 2, realizing the dynamic adjustment of the drop and blocking effect and the drop height of the lifting drop device; it solves the problem of local flooding and large drop noise caused by the lack of dynamic adjustment capability of traditional drop walls.

[0069] In theory, each pool needs to hold a certain amount of water when this embodiment is used.

[0070] Example 2:

[0071] like Figures 1-7 As shown, this embodiment is based on embodiment 1. Each receiving cavity is provided with multiple rows of cascading baffles 1. The side walls of two adjacent cascading baffles 1 are in close contact. The cascading baffles 1 correspond one-to-one with the buoyancy components 2, and the buoyancy components 2 correspond one-to-one with the buoyancy slide rails 3. Each cascading baffle 1 can independently perform rising and falling operations.

[0072] In one specific implementation, the containment cavity is provided with multiple partitions, which divide the containment cavity into multiple containment chambers. Each containment chamber is provided with a drop wall 1 and a drain pipe 5. By dividing the containment cavity into multiple containment chambers, the drop wall 1 can rise and fall independently.

[0073] The width of each drop wall 1 in each receiving cavity can be the same or different, preferably the same. When the width of each drop wall 1 is the same and the size of each receiving cavity is the same, it is easy to control the height of all drop walls 1 to rise in the same way. The height of each drop wall 1 can be achieved by directly injecting the same amount of water 9 into each receiving cavity.

[0074] In this embodiment, each receiving cavity is provided with multiple rows of cascading baffles 1. Compared with one cascading baffle 1 in one receiving cavity, the weight of the cascading baffle 1 is greatly reduced, and it is easier to control the rise and fall of the cascading baffle 1 by buoyancy, thus reducing the difficulty of buoyancy control for raising and lowering.

[0075] Furthermore, the rise and fall of each waterfall barrier 1 can be controlled independently. By controlling the lifting and lowering combination of the waterfall devices, various water-blocking effects can be achieved, resulting in a variety of water-dividing and waterfall effects, ensuring the best viewing experience.

[0076] like Figure 1 As shown, by controlling the descent of all the drop walls 1 to form drop walls 11, the water can be cascaded from one level to the next.

[0077] like Figure 2 As shown, by controlling the partial cascading retaining wall 1 to descend to form cascading wall 11 and the partial cascading retaining wall 1 to rise to form retaining wall 12, the water can be partially cascaded from one level to the next.

[0078] like Figure 3 As shown, by controlling the rise of all the drop walls 1 to form a water-retaining wall 12, the reservoir capacity is increased, thereby reducing the pressure of rising water levels at each level of the river channel in the short term:

[0079] The relationship between the increase in reservoir capacity (also known as regulating capacity, V) after the rise of the cascade retaining wall 1 and the rise height can be calculated using the following reservoir capacity formula:

[0080] V=L1W1H1+L2W2H2+L3W3H3+……+LnWnHn

[0081] Where V represents storage capacity (also known as regulating storage capacity), the unit is m. 3 L1 is the average length of the first-level river channel in meters; W1 is the average width of the first-level river channel in meters; H1 is the rise height of the first-level cascade retaining wall in meters; L2 is the average length of the second-level river channel in meters; W2 is the average width of the second-level river channel in meters; H2 is the rise height of the second-level cascade retaining wall in meters; L3 is the average length of the third-level river channel in meters; W3 is the average width of the third-level river channel in meters; H3 is the rise height of the third-level cascade retaining wall in meters; Ln is the average length of the nth-level river channel in meters; Wn is the average width of the nth-level river channel in meters; Hn is the rise height of the nth-level cascade retaining wall in meters.

[0082] The increase in river channel storage capacity is equivalent to the increase in inflow. The flood control efficiency of the drop structure can be calculated using the peak flow reduction rate, which can be determined based on the following equation:

[0083] γ = (Qin - Qout) / Qinx 100%

[0084] Wherein, γ refers to the peak flow reduction rate; Qin refers to the inflow rate, in m³. 3 Qout indicates the outflow rate, in milliseconds (m³). 3 .

[0085] If the inflow is greater than the outflow, meaning the reservoir is storing water or reducing flood peaks, γ is greater than zero; the greater the amount of flood peak reduced, the greater the value of γ.

[0086] If the reservoir flow rate equals the outflow rate, meaning the reservoir is not functioning, then γ equals zero.

[0087] If the inflow is less than the outflow, meaning the reservoir is releasing water, γ is less than zero; the larger the discharge, the larger the absolute value of γ.

[0088] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0089] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the disclosed technical content. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

Claims

1. A lifting and dropping water device, characterized in that, It includes a drop wall (1), a buoyancy component (2), a buoyancy slide rail (3), a buoyancy control component, and a concrete retaining wall (6); The concrete retaining wall (6) has a stepped structure, and at least two steps in the stepped structure form accommodating cavities. The top of the accommodating cavities is provided with strip-shaped through grooves. The buoyancy slide rail (3) is installed on the inner wall of the receiving cavity; The buoyancy component (2) is disposed in the receiving cavity and is slidably disposed on the buoyancy slide rail (3); The bottom of the drop wall (1) is connected to the buoyancy member (2), and the top extends out of the receiving cavity through the strip groove; The buoyancy control component is used to adjust the buoyancy of the buoyancy component (2), and to realize the rise and fall of the drop wall (1) according to the buoyancy of the buoyancy component (2), and to realize the switching of the drop wall (1) between the water barrier (12) and the drop wall (11) through the rise and fall; Each cavity is equipped with multiple rows of drop walls (1), the side walls of two adjacent drop walls (1) are in close contact, the drop walls (1) correspond one-to-one with the buoyancy components (2), the buoyancy components (2) correspond one-to-one with the buoyancy slide rails (3), and each drop wall (1) can independently perform rising and falling operations. The cavity is provided with multiple partitions, which divide the cavity into multiple chambers. Each chamber is provided with a drop wall (1) and a buoyancy control component. The buoyancy control component is a water supply and drainage pipe (5), which is used to introduce or export buoyancy filler into the receiving cavity to realize the rise and fall of the drop wall (1).

2. The lifting and dropping water device according to claim 1, characterized in that, The cavity is provided with a limiting device (4), which is used to realize the multi-stage rising height of the waterfall retaining wall (1).

3. The lifting and dropping water device according to claim 1, characterized in that, The receiving cavity is provided with water-stop steel plates (8) on both inner side walls in the direction of the water drop, and the water-stop steel plates (8) are provided with waterproof coating (7). The waterproof coating (7) is used to fill the gap between the water drop retaining wall (1) and the inner wall of the receiving cavity.

4. The lifting and dropping water device according to claim 1, characterized in that, One sidewall of the strip-shaped channel is a vertical surface with a stepped structure.

5. A lifting and dropping water device according to claim 1, characterized in that, The width of the strip groove is less than the width of the receiving cavity, and the width of the buoyancy member (2) is greater than the width of the strip groove.

6. A lifting and dropping water device according to any one of claims 1-5, characterized in that, The drop wall (1) is made of lightweight, high-strength composite material.

7. The operating method of the lifting and dropping device as described in any one of claims 1-6, characterized in that, Includes the following steps: S1. When it is necessary to block water, the buoyancy of the buoyancy component (2) is increased by the buoyancy control component, so that the drop wall (1) rises to the top of the drop wall (1) above the water surface of the upper level pool. At this time, the drop wall (1) acts as a water barrier (12) to block the water from the upper level pool from entering the lower level pool. S2. When water blocking is not required, the buoyancy of the buoyancy component (2) is reduced by the buoyancy control component, so that the drop wall (1) drops down to the top of the drop wall (1) and is level with the water surface of the upper level pool. At this time, the drop wall (1) acts as a drop wall (11) to allow the water of the upper level pool to enter the lower level pool.

Images