Adjustable water conservancy retaining dam
By designing an adjustable water conservancy water barrier dam, using control valves and water barriers to adjust the dam height, and dispersing the water pressure through the support components, the problem that existing water conservancy water barrier dams are difficult to block floods at low water levels, and the stable operation of water conservancy projects and flood prevention and control are achieved.
Patent Information
- Application Number
- CN202422161232.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The existing water conservancy dams are difficult to effectively block upstream water when the water level is lower than the dam height, resulting in flood threats in downstream areas.
An adjustable water conservancy water barrier dam is designed. By setting up a control valve, a first water barrier, a second water barrier and a third water barrier, the height of the dam can be adjusted according to actual needs, and the water pressure is dispersed by the support component to ensure that the dam remains stable under complex working conditions.
It has achieved the adjustment of the dam height according to different water level requirements, ensure the normal operation of water conservancy projects, and increase the reservoir's flood storage capacity during the flood season, effectively block flood storage, and reduce flood control pressure in downstream areas.
Smart Images
Figure CN222961980U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of water conservancy and hydropower engineering, and specifically relates to an adjustable water conservancy dam. Background Art
[0002] A water conservancy dam, also known as a water retaining dam or a dam, is an artificial building structure used to block, control or manage water flow for purposes such as flood control, water storage, power generation, water supply, irrigation, etc. The main function of a water conservancy dam is to store, regulate, utilize and protect water resources by blocking or controlling water flow, so it is often applied in fields such as agricultural irrigation, fishery, ship locks, seawater tide protection, urban river landscape, engineering and hydropower stations.
[0003] In the prior art, engineers determine parameters such as the type, height, width, and crest elevation of the dam according to conditions such as terrain, geology, and hydrology, and then carry out work such as formwork installation, steel bar binding, and concrete pouring according to the design requirements. After the pouring is completed, regular inspections and acceptance are also required to ensure that it meets the design requirements and relevant standards.
[0004] During long-term use and observation, it is found that during the process of using a water conservancy dam for flood control, when the height of the dam is lower than the water level, it will be difficult for the dam to block the upstream water flow, resulting in a situation where the downstream area is threatened by floods.
[0005] Therefore, the utility model provides an adjustable water conservancy dam. Summary of the Utility Model
[0006] In order to make up for the deficiencies of the prior art and solve at least one problem proposed in the background art, an adjustable water conservancy dam is proposed.
[0007] The technical solution adopted by the present utility model to solve its technical problems is as follows: An adjustable water conservancy retaining dam of the present utility model includes a dam foundation; a dam body is fixedly connected to the middle of the side wall of the dam foundation; a groove is formed in the top side wall of the dam body; the grooves are multiple and are arranged regularly in a linear array on the top of the dam body; the inner side wall of the bottom of the groove is rotatably connected to a first support rod; a torsion spring is arranged between the groove and the first support rod; the other end of the first support rod is rotatably connected to the dam body; a fixed seat is fixedly connected to the middle of the side wall of the dam body; the fixed seats are a pair and are symmetrically arranged on both sides of the dam body; a control valve is fixedly connected to the middle of the side wall of the fixed seat; the output end of the control valve is fixedly connected to a first water retaining plate; the first water retaining plate slides inside the fixed seat; a second water retaining plate is slidably connected to the inner side wall of the bottom of the first water retaining plate; a third water retaining plate is slidably connected to the inner side wall of the bottom of the second water retaining plate; a limiting component is formed in the top side wall of the dam body; the third water retaining plate slides inside the limiting component; a plurality of support components are fixedly connected to the top side wall of the dam foundation; the other ends of the support components are respectively arranged on the side walls of the first water retaining plate, the second water retaining plate and the third water retaining plate; By setting the control valve, the first water retaining plate, the second water retaining plate and the third water retaining plate in this step, the height of the dam can be adjusted according to actual needs, so as to adapt to different water level requirements, ensure the normal operation of the water conservancy project, and in the flood season, by adjusting the height of the dam, the flood storage capacity of the reservoir can be increased, effectively intercepting floods and reducing the flood control pressure in the downstream area.
[0008] Preferably, the support component includes a channel; the channels are multiple and are respectively formed in the side walls of the first water retaining plate, the second water retaining plate and the third water retaining plate; a plurality of fixing plates are fixedly connected to the top side wall of the dam foundation; the fixing plates are arranged corresponding to the channels; a second support rod is rotatably connected to the fixing plate; a torsion spring is arranged between the fixing plate and the second support rod; the other end of the second support rod is rotatably connected to a roller; the roller slides inside the channel; By setting the channel, the fixing plate, the second support rod and the roller in this step, the first water retaining plate, the second water retaining plate and the third water retaining plate can be supported, dispersing the water pressure and other loads borne by the first water retaining plate, the second water retaining plate and the third water retaining plate, ensuring the overall stability of the dam under complex working conditions, and this setting can reduce the deformation and displacement of the first water retaining plate, the second water retaining plate and the third water retaining plate during long-term use, maintaining their original shape and size, making them more stable under flood impact, and at the same time, the movable support component can adaptively adjust its support strength and angle, effectively dispersing the impact force of the water flow on the dam and ensuring the stability of the dam under various working conditions.
[0009] Preferably, a notch is provided in the middle of the side wall of the fixed seat; a limiting block is fixedly connected to the middle of the side wall of the third water baffle; the notch and the limiting block are correspondingly arranged; a waterproof cloth is fixedly connected to the middle of the side wall of the limiting block; the other end of the waterproof cloth is fixedly connected to the notch; the waterproof cloth slides inside the notch; the waterproof cloth is made of an elastic material. By setting the notch, the limiting block and the waterproof cloth, this step can effectively prevent the direct scouring of the water flow on the surfaces of the first water baffle, the second water baffle and the third water baffle, reduce the erosion and damage caused by the water flow scouring, protect the stability and safety of the dam, and after the waterproof cloth is laid on the surface of the dam, it can increase the overall bearing capacity and stability of the dam, making it more durable.
[0010] Preferably, a fixing block is fixedly connected to the middle of the side wall of the fixed seat; a plurality of brushes are fixedly connected to the middle of the side wall of the fixing block; the brushes are arranged in sliding fit with the waterproof cloth. By setting the fixing block and the brushes, this step can remove impurities such as sediment, algae, and microorganisms attached to the surface of the waterproof cloth, keep the waterproof cloth clean, reduce the leakage problem caused by excessive attachments on the surface of the waterproof cloth, ensure the safe operation of the dam, and the long-term accumulation of impurities such as sediment on the surface of the waterproof cloth will increase the friction between the waterproof cloth and the water flow and accelerate its wear. Sweeping with the brushes can reduce this wear, thereby prolonging the service life of the waterproof cloth.
[0011] Preferably, the limiting component includes a plurality of tracks; the tracks are provided at the top of the dam foundation; a plurality of movable blocks are fixedly connected to the bottom side wall of the third water baffle; the movable blocks and the tracks are correspondingly arranged; the movable blocks slide inside the tracks. By setting the tracks and the movable blocks, this step can keep the third water baffle stable during the moving process, and further keep the first water baffle and the second water baffle running stably, reduce the risk of the dam shaking and tilting, and this setting can prevent the first water baffle, the second water baffle and the third water baffle from shifting during the moving process, improving the reliability of the dam.
[0012] Preferably, an elastic capsule is fixedly connected to the inner side wall of the bottom of the track; the elastic capsule is elastically arranged. By setting the elastic capsule, this step can form a lubricating film on the surface of the track, reduce the frictional resistance between the track and the movable block, and ensure the smooth sliding between the track and the movable block.
[0013] Preferably, a fixing rod is provided in the middle of the side wall of the second support rod; the other end of the fixing rod is provided at the top of the dam foundation. By setting the fixing rod between the second support rod and the dam foundation, this step can disperse and reduce the load pressure of the overall structure, and enhance the anti-overturning performance of the second support rod.
[0014] The beneficial effects of the present utility model are as follows:
[0015] 1. An adjustable water conservancy water retaining dam according to the present utility model can adjust the height of the dam according to actual needs by setting a control valve, a first water retaining plate, a second water retaining plate and a third water retaining plate, so as to adapt to different water level requirements, ensure the normal operation of the water conservancy project, and in the flood season, by adjusting the height of the dam, the flood storage capacity of the reservoir can be increased, effectively intercepting floods and reducing the flood control pressure in the downstream area.
[0016] 2. An adjustable water conservancy water retaining dam according to the present utility model can support the first water retaining plate, the second water retaining plate and the third water retaining plate by setting a channel, a fixing plate, a second support rod and a roller, dispersing the water pressure and other loads borne by the first water retaining plate, the second water retaining plate and the third water retaining plate, ensuring the overall stability of the dam under complex working conditions, and this setting can reduce the deformation and displacement of the first water retaining plate, the second water retaining plate and the third water retaining plate during long-term use, maintaining their original shape and size, making them more stable under flood impact. At the same time, the movable support assembly can adaptively adjust its support strength and angle, effectively dispersing the impact force of the water flow on the dam and ensuring the stability of the dam under various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The present utility model will be further described below with reference to the accompanying drawings.
[0018] Figure 1 is a perspective view of the present utility model;
[0019] Figure 2 is a schematic diagram of the mating structure of the dam foundation and the dam body in the present utility model;
[0020] Figure 3 is a cross-sectional view of the water retaining plate in the present utility model;
[0021] Figure 4 is a schematic diagram of the mating structure of the water retaining plate and the support rod in the present utility model;
[0022] Figure 5 is Figure 2 a partial enlarged view of part A in
[0023] LEGEND DESCRIPTION:
[0024] 1. Dam foundation; 11. Dam body; 12. Groove; 13. First support rod; 14. Fixed seat; 15. Control valve; 16. First water retaining plate; 17. Second water retaining plate; 18. Third water retaining plate; 2. Channel; 21. Fixing plate; 22. Second support rod; 23. Roller; 3. Notch; 31. Limiting block; 32. Waterproof cloth; 4. Fixed block; 41. Brush; 5. Track; 51. Movable block; 6. Elastic capsule; 7. Fixed rod. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0026] Specific embodiments are given below.
[0027] Such as Figures 1 to 4As shown in the figure, an adjustable water conservancy flood dam according to an embodiment of the present invention includes a dam foundation 1; a dam body 11 is fixedly connected to the middle of the side wall of the dam foundation 1; a groove 12 is opened on the top side wall of the dam body 11; the grooves 12 are multiple and are regularly arranged in a linear array on the top of the dam body 11; a first support rod 13 is rotatably connected to the inner side wall of the bottom of the groove 12; a torsion spring is provided between the groove 12 and the first support rod 13; the other end of the first support rod 13 is rotatably connected to the dam body 11; a fixed seat 14 is fixedly connected to the middle of the side wall of the dam body 11; the fixed seats 14 are a pair and are symmetrically arranged on both sides of the dam body 11; a control valve 15 is fixedly connected to the middle of the side wall of the fixed seat 14; the output end of the control valve 15 is fixedly connected to a first water retaining plate 16; the first water retaining plate 16 slides inside the fixed seat 14; a second water retaining plate 17 is slidably connected to the inner side wall of the bottom of the first water retaining plate 16; a third water retaining plate 18 is slidably connected to the inner side wall of the bottom of the second water retaining plate 17; a limiting component is opened on the top side wall of the dam body 11; the third water retaining plate 18 slides inside the limiting component; a plurality of support components are fixedly connected to the top side wall of the dam foundation 1; the other ends of the support components are respectively arranged on the side walls of the first water retaining plate 16, the second water retaining plate 17 and the third water retaining plate 18; during operation, when a flood warning is received, after the engineering personnel judge the water level height, the control valve 15 is started. At this time, the control valve 15 controls a pair of first water retaining plates 16, second water retaining plates 17 and third water retaining plates 18 to move towards each other. At this time, a pair of third water retaining plates 18 move uniformly on the top of the dam body 11 under the restriction of the limiting component until a pair of third water retaining plates 18 abut against each other, and the control valve 15 is stopped. At this time, the first water retaining plate 16, the second water retaining plate 17 and the third water retaining plate 18 seal the top area of the dam body 11. Subsequently, the engineering personnel adjust the support components to support the first water retaining plate 16, the second water retaining plate 17 and the third water retaining plate 18 from the bottom. At this time, the first water retaining plate 16, the second water retaining plate 17, the third water retaining plate 18 and the dam body 11 form a whole to jointly resist the upcoming flood. This step can adjust the height of the flood dam according to actual needs by setting the control valve 15, the first water retaining plate 16, the second water retaining plate 17 and the third water retaining plate 18, so as to adapt to different water level requirements, ensure the normal operation of the water conservancy project, and in the flood season, by adjusting the height of the flood dam, the flood storage capacity of the reservoir can be increased, the flood can be effectively intercepted, and the flood control pressure on the downstream area can be reduced.
[0028] As Figure 1 and Figure 4As shown, the support assembly includes a channel 2; a plurality of the channels 2 are respectively opened on the side walls of the first water baffle 16, the second water baffle 17, and the third water baffle 18; a plurality of fixing plates 21 are fixedly connected to the top side wall of the dam foundation 1; the fixing plates 21 and the channels 2 are arranged corresponding to each other; a second support rod 22 is rotatably connected to the fixing plate 21; a torsion spring is provided between the fixing plate 21 and the second support rod 22; the other end of the second support rod 22 is rotatably connected to a roller 23; the roller 23 slides inside the channel 2; during operation, the engineer adjusts the angles of the plurality of second support rods 22 so that the second support rods 22 drive the rollers 23 to abut against the side walls of the first water baffle 16, the second water baffle 17, and the third water baffle 18. Because a torsion spring is provided between the fixing plate 21 and the second support rod 22, the plurality of rollers 23 will tightly press against the side walls of the first water baffle 16, the second water baffle 17, and the third water baffle 18. When the first water baffle 16, the second water baffle 17, and the third water baffle 18 shake due to the impact force of the flood, the rollers 23 will move up and down inside the channel 2 to help the first water baffle 16, the second water baffle 17, and the third water baffle 18 buffer the impact force of the water flow. By setting the channel 2, the fixing plate 21, the second support rod 22, and the roller 23 in this step, the first water baffle 16, the second water baffle 17, and the third water baffle 18 can be supported, the water pressure and other loads borne by the first water baffle 16, the second water baffle 17, and the third water baffle 18 can be dispersed, ensuring the overall stability of the dam under complex working conditions. Moreover, this setting can reduce the deformation and displacement of the first water baffle 16, the second water baffle 17, and the third water baffle 18 during long-term use, maintain their original shapes and dimensions, make them more stable under flood impact. At the same time, the movable support assembly can adaptively adjust its support strength and angle, effectively dispersing the impact force of the water flow on the dam and ensuring the stability of the dam under various working conditions.
[0029] As Figure 1 , Figure 2 and Figure 3As shown, a notch 3 is formed in the middle of the side wall of the fixed seat 14; a limiting block 31 is fixedly connected to the middle of the side wall of the third water baffle 18; the notch 3 and the limiting block 31 are arranged correspondingly; a waterproof cloth 32 is fixedly connected to the middle of the side wall of the limiting block 31; the other end of the waterproof cloth 32 is fixedly connected to the notch 3; the waterproof cloth 32 slides inside the notch 3; the waterproof cloth 32 is made of an elastic material; during operation, when a pair of third water baffles 18 are abutted against each other, the limiting block 31 fixedly connected to the side wall of the third water baffle 18 will pull the waterproof cloth 32 inside the notch 3, so that the waterproof cloth 32 slides out of the notch 3. When the third water baffle 18 stops moving, the waterproof cloth 32 will be fully unfolded and spread on the surface of the dam. By setting the notch 3, the limiting block 31 and the waterproof cloth 32, this step can effectively prevent the direct scouring of the water flow on the surfaces of the first water baffle 16, the second water baffle 17 and the third water baffle 18, reduce the erosion and damage caused by the water flow scouring, protect the stability and safety of the dam, and after the waterproof cloth 32 is laid on the surface of the dam, it can increase the overall bearing capacity and stability of the dam, making it more durable.
[0030] As Figures 1 to 5 shown, a fixing block 4 is fixedly connected to the middle of the side wall of the fixed seat 14; a plurality of brushes 41 are fixedly connected to the middle of the side wall of the fixing block 4; the brushes 41 and the waterproof cloth 32 are arranged in a sliding fit; during operation, when the third water baffle 18 retracts into the first water baffle 16, the waterproof cloth 32 will synchronously retract into the notch 3. At this time, a plurality of brushes 41 will contact the surface of the waterproof cloth 32 and clean the sediment remaining on the surface of the waterproof cloth 32. By setting the fixing block 4 and the brushes 41, this step can remove impurities such as sediment, algae and microorganisms attached to the surface of the waterproof cloth 32, keep the waterproof cloth clean, reduce the leakage problem caused by too many attachments on the surface of the waterproof cloth 32, ensure the safe operation of the dam, and the long-term accumulation of impurities such as sediment on the surface of the waterproof cloth 32 will increase the friction between the waterproof cloth 32 and the water flow and accelerate its wear. Cleaning with the brushes 41 can reduce this wear, thereby extending the service life of the waterproof cloth 32.
[0031] As Figures 1 to 4As shown, the limiting component includes a plurality of tracks 5; the tracks 5 are opened at the top of the dam foundation 1; a plurality of movable blocks 51 are fixedly connected to the bottom side wall of the third water retaining plate 18; the movable blocks 51 and the tracks 5 are correspondingly arranged; the movable blocks 51 slide inside the tracks 5; during operation, because the movable blocks 51 and the tracks 5 are correspondingly arranged, when the third water retaining plate 18 moves, the third water retaining plate 18 will drive the movable blocks 51 to slide inside the tracks 5. By setting the tracks 5 and the movable blocks 51 in this step, the third water retaining plate 18 can be kept stable during the moving process, so that the first water retaining plate 16 and the second water retaining plate 17 can operate stably, reducing the risks of the dam shaking and tilting, and this setting can prevent the first water retaining plate 16, the second water retaining plate 17 and the third water retaining plate 18 from shifting during the moving process, improving the reliability of the dam.
[0032] As Figures 2 to 4 shown, an elastic capsule 6 is fixedly connected to the inner side wall of the bottom of the track 5; the elastic capsule 6 is elastically arranged; during operation, the engineering staff injects lubricating fluid into the elastic capsule 6. When the movable block 51 drives the third water retaining plate 18 to slide inside the track 5, the elastic capsule 6 will be squeezed, and the lubricating fluid inside the elastic capsule 6 will be smeared between the track 5 and the movable block 51. By setting the elastic capsule 6 in this step, a lubricating film can be formed on the surface of the track 5, reducing the frictional resistance between the track 5 and the movable block 51 and ensuring the smooth sliding between the track 5 and the movable block 51.
[0033] As Figure 1 and Figure 4 shown, a fixed rod 7 is arranged in the middle of the side wall of the second support rod 22; the other end of the fixed rod 7 is arranged at the top of the dam foundation 1; by setting the fixed rod 7 between the second support rod 22 and the dam foundation 1 in this step, the load pressure of the overall structure can be dispersed and reduced, enhancing the anti-overturning performance of the second support rod 22.
[0034] Working principle: When a flood warning is received, the engineering staff determines the water level height and then activates the control valve 15. At this time, the control valve 15 controls a pair of first water retaining plates 16, second water retaining plates 17, and third water retaining plates 18 to move towards each other. At this time, the pair of third water retaining plates 18 move uniformly on the top of the dam body 11 under the restriction of the limiting component until the pair of third water retaining plates 18 abut against each other. Then, the control valve 15 is stopped. At this time, the first water retaining plates 16, second water retaining plates 17, and third water retaining plates 18 seal the top area of the dam body 11. Subsequently, the engineering staff adjusts the support component to support the first water retaining plates 16, second water retaining plates 17, and third water retaining plates 18 from the bottom. At this time, the first water retaining plates 16, second water retaining plates 17, third water retaining plates 18, and the dam body 11 form an integral body to jointly resist the upcoming flood. The engineering staff adjusts the angles of multiple second support rods 22 so that the second support rods 22 with rollers 23 abut against the side walls of the first water retaining plates 16, second water retaining plates 17, and third water retaining plates 18. Because a torsion spring is provided between the fixed plate 21 and the second support rod 22, the multiple rollers 23 will tightly press against the side walls of the first water retaining plates 16, second water retaining plates 17, and third water retaining plates 18. When the first water retaining plates 16, second water retaining plates 17, and third water retaining plates 18 shake due to the impact of the flood, the rollers 23 will move up and down in the chute 2 to help the first water retaining plates 16, second water retaining plates 17, and third water retaining plates 18 buffer the impact of the water flow. When the pair of third water retaining plates 18 abut against each other, the limit blocks 31 fixed on the side walls of the third water retaining plates 18 will pull the waterproof cloth 32 inside the notch 3, so that the waterproof cloth 32 slides out of the notch 3. When the third water retaining plates 18 stop moving, the waterproof cloth 32 will be fully unfolded and spread on the surface of the dam. When the third water retaining plates 18 retract into the first water retaining plates 16, the waterproof cloth 32 will retract into the notch 3 synchronously. At this time, multiple brushes 41 will contact the surface of the waterproof cloth 32 and clean the sediment remaining on the surface of the waterproof cloth 32. Because the movable block 51 and the track 5 are correspondingly arranged, when the third water retaining plates 18 move, the third water retaining plates 18 will drive the movable block 51 to slide inside the track 5. The engineering staff injects lubricating fluid into the elastic capsule 6. When the movable block 51 drives the third water retaining plates 18 to slide inside the track 5, it will squeeze the elastic capsule 6 and smear the lubricating fluid inside the elastic capsule 6 between the track 5 and the movable block 51. By setting the fixing rod 7 between the second support rod 22 and the dam foundation 1, the load pressure of the overall structure can be dispersed and reduced, and the anti-overturning performance of the second support rod 22 can be enhanced.
[0035] The basic principles, main features, and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. An adjustable hydraulic retaining dam, comprising a dam foundation (1); characterized in that: A dam body (11) is fixedly connected to the middle of the side wall of the dam foundation (1); a groove (12) is provided on the top side wall of the dam body (11); the grooves (12) are multiple and are regularly arranged in a linear array on the top of the dam body (11); a first support rod (13) is rotatably connected to the inner side wall of the bottom of the groove (12); a torsion spring is provided between the groove (12) and the first support rod (13); the other end of the first support rod (13) is rotatably connected to the dam body (11); a fixing seat (14) is fixedly connected to the middle of the side wall of the dam body (11); the fixing seats (14) are a pair and are symmetrically arranged on both sides of the dam body (11); a control valve ( 15); the output end of the control valve (15) is fixedly connected to a first water baffle (16); the first water baffle (16) slides inside the fixed seat (14); the bottom inner wall of the first water baffle (16) is slidably connected to a second water baffle (17); the bottom inner wall of the second water baffle (17) is slidably connected to a third water baffle (18); a limit assembly is provided on the top side wall of the dam body (11); the third water baffle (18) slides inside the limit assembly; a plurality of support assemblies are fixedly connected to the top side wall of the dam foundation (1); the other ends of the support assemblies are respectively arranged on the side walls of the first water baffle (16), the second water baffle (17) and the third water baffle (18).
2. The adjustable hydraulic dam according to claim 1, characterized in that: The support assembly comprises a groove (2); the groove (2) is a plurality of grooves which are respectively arranged on the side walls of a first water baffle (16), a second water baffle (17) and a third water baffle (18); a plurality of fixing plates (21) are fixedly connected to the top side walls of the dam foundation (1); the fixing plates (21) and the groove (2) are arranged correspondingly; the fixing plates (21) are rotatably connected to a second support rod (22); a torsion spring is arranged between the fixing plates (21) and the second support rod (22); the other end of the second support rod (22) is rotatably connected to a roller (23); the roller (23) slides inside the groove (2).
3. The adjustable hydraulic dam according to claim 1, characterized in that: A notch (3) is provided in the middle of the side wall of the fixing seat (14); a limiting block (31) is fixedly connected to the middle of the side wall of the third water baffle (18); the notch (3) and the limiting block (31) are arranged correspondingly; a waterproof cloth (32) is fixedly connected to the middle of the side wall of the limiting block (31); the other end of the waterproof cloth (32) is fixedly connected to the notch (3); the waterproof cloth (32) slides inside the notch (3); and the waterproof cloth (32) is made of elastic material.
4. The adjustable hydraulic dam according to claim 3, characterized in that: A fixing block (4) is fixedly connected to the middle of the side wall of the fixing seat (14); a plurality of brushes (41) are fixedly connected to the middle of the side wall of the fixing block (4); and the brushes (41) and the waterproof cloth (32) are arranged in a sliding manner.
5. The adjustable hydraulic dam according to claim 1, characterized in that: The position limiting assembly comprises a plurality of tracks (5); the tracks (5) are provided on the top of the dam foundation (1); a plurality of movable blocks (51) are fixedly connected to the bottom side wall of the third water retaining plate (18); the movable blocks (51) and the tracks (5) are arranged correspondingly; and the movable blocks (51) slide inside the tracks (5).
6. The adjustable hydraulic dam according to claim 5, characterized in that: An elastic bag (6) is fixedly connected to the inner side wall of the bottom of the track (5); the elastic bag (6) is elastically arranged.
7. The adjustable hydraulic dam according to claim 2, characterized in that: A fixing rod (7) is provided in the middle of the side wall of the second support rod (22); the other end of the fixing rod (7) is arranged on the top of the dam foundation (1).