Water level sensing automatic height changing dam flood control structure

Abstract

The invention discloses a water level sensing automatic height changing dam flood control structure, which belongs to the technical field of water conservancy projects and mine tailing ponds and comprises a side slope, foundation piles vertically poured in the side slope and a dike mounted at the tops of the foundation piles. The protection plate is vertically and slidably arranged at the bottom of the inner side of the dike, and the protection plate is located below the water surface in the initial state, so that protection can be formed between the dike and the side slope, scouring of river water to the side slope is reduced, and the stability of the dike is ensured; and a lifting mechanism consisting of a wire coil, a motor, a speed reducer, a sling, a first rotating roller, a second rotating roller and a liquid level switch is matched for use, so that after flood reaches a set height, the starting of the lifting mechanism can be automatically controlled, the protection plate is lifted at a fixed height and does not shake along with the rising of the liquid level, and the protection stability is improved; and in addition, after the liquid level is lower than the set height, the protection plate can be automatically released through the lifting mechanism, and the practicability is higher.

Description

Technical Field

[0001] The invention relates to a flood control structure, in particular to a water level sensing automatically variable height dam flood control structure, belonging to the technical field of water conservancy engineering and mine tailings ponds. Background Art

[0002] In the prior art, an automatic lifting flood control structure is disclosed in the invention with application number 202010110928.0. In order to solve the problem that the construction of flood retaining walls lacks adjustability and cannot meet the requirements of ensuring flood control effects while avoiding affecting urban landscapes and citizens' affinity for water, an automatic lifting flood control structure is used. Since the flood control pipe is connected to the river, when the water level is low and the water level does not exceed the water level set by the flood control pipe, the automatic lifting flood control structure will not start; when the water level is high, the water flow in the river enters the flood control pipe and flows to the bottom of the lifting frame. The lifting frame gradually rises under the action of buoyancy, prompting the other end of the retaining wall body to swing upward, thereby increasing the height of the embankment, achieving the interception height of the river, and realizing flood control. At this time, the automatic lifting flood control structure is automatically started; when the water level in the river drops again, the water level drops, and the lifting frame automatically drops as the water level drops, and the other end of the retaining wall body automatically returns to the surface of the embankment; the automatic flood control of urban rivers is met, thereby realizing automatic lifting and adjustable automatic flood control of urban rivers.

[0003] Similar to the above application, there are still some shortcomings:

[0004] The retaining wall body is in an active connection state under the support of the support frame. Although the protection height can be automatically controlled according to the water level, if the wind and waves on the water surface are large, the retaining wall body will swing, affecting the fit between adjacent devices and causing flood outflow. At the same time, when the retaining wall body is impacted by the water flow, it will exert a moving horizontal force on the support frame, causing the deformation of the support frame, affecting the support and up and down sliding effects of the support frame. In addition, after the retaining wall body is raised, the poor sealing between it and the embankment will also cause water leakage.

[0005] Therefore, a water level sensing and automatically variable height dam flood control structure is designed to optimize the above problems. Summary of the invention

[0006] The main purpose of the present invention is to provide a water level sensing automatically variable height dam flood control structure, by vertically slidingly setting a protective plate at the bottom of the inner side of the dam, and the initial state of the protective plate is below the water surface, which can form a protection between the dam and the slope, reduce the scouring of the slope by the river water, and ensure the stability of the dam, and then cooperate with the lifting mechanism composed of a wire coil, a motor, a reducer, a sling, a first roller, a second roller and a liquid level switch for use, so that after the flood reaches the set height, the lifting mechanism can be automatically controlled to start, and the protective plate can be lifted to a fixed height without shaking as the liquid level rises, thereby improving the stability of the protection. In addition, after the liquid level is lower than the set height, the lifting mechanism can be used to automatically release the protective plate, which is more practical. By fixing a top block on the back of the protective plate, and then cooperating with the transmission assembly composed of a first slide groove, a slider, a return spring, a first rack and a gear, when the protective plate rises to the highest point, The rotation of the shaft rod is automatically controlled, and the top rod at the end of the shaft rod is automatically attached to the outer surface of the protective plate, so as to provide external support and reinforcement for the protective plate, thereby improving the stability of the protective plate. In addition, the transmission assembly is used in conjunction with the sealing strip and the second rack inside the second slide groove. During the rotation of the top rod, the gear controls the second rack to drive the sealing strip to move horizontally, so as to seal the protective plate and the levee at the same time, thereby effectively preventing flood leakage. A support block is provided for horizontal sliding on the inner side of the levee, and a telescopic mechanism composed of the second floating plate, the hinged seat, the connecting rod and the positioning block inside the transmission bin is cooperated with. The support block can be automatically pushed out after the liquid level rises, and the support block is attached to the bottom of the protective plate. In the process of flood prevention, the protective plate is simultaneously subjected to the upward traction force applied by the sling from its bottom, the resistance provided to its bottom by the inner side of the levee, the supporting force provided by the top rod at its top and the support formed by the support block at its bottom, thereby improving the stability of the protective plate and improving the flood prevention effect.

[0007] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0008] A water level sensing automatically variable height dam flood control structure comprises a slope, foundation piles vertically cast inside the slope and a levee installed on top of the foundation piles, a protective plate is vertically slidably arranged at the bottom inside the levee, and the protective plate shields the connection between the foundation piles, the slope and the levee, a self-lifting mechanism for controlling the vertical movement of the protective plate is arranged inside the levee, an upper reinforcement mechanism for supporting the outer side of the protective plate is arranged at the top of the outer side of the levee, a sealing mechanism for blocking the gap between the levee and the protective plate is arranged at the top of the inner side of the levee along the length direction, and a lower supporting mechanism for limiting the position of the protective plate is slidably arranged below the sealing mechanism.

[0009] Preferably: a storage groove for limiting the bottom of the protective plate is provided inside the slope, grooves are provided at the tops of both sides of the storage groove along the length direction, and a first floating plate is hingedly installed at the inner top of the groove on the side of the storage groove away from the embankment.

[0010] Preferably, the top of the first floating board is an inclined surface, and the bottom end of the inclined surface is located on the side away from the dike.

[0011] Preferably, the self-lifting mechanism includes an installation groove, a wire reel, a motor, a speed reducer, a sling, a first roller, a first vertical groove, a second roller, a fixed seat, and a water level induction switch assembly. The installation grooves are symmetrically opened at both ends of the outside of the dike. A wire reel is rotatably installed between both ends of the dike. The wire reel passes through the inside of the installation groove. A motor is installed at one end of the dike. The output end of the motor is installed with a speed reducer. The output end of the speed reducer is connected to the end of the wire reel. Slings are wound and installed at both ends of the wire reel. The inner top of the installation groove is rotatably installed with first rollers. The slings pass over the tops of the first rollers. First vertical grooves are vertically opened at both ends of the inside of the dike. Second rollers are rotatably installed at the tops of the first vertical grooves. The bottom ends of the first vertical grooves extend into the storage tank. The slings extend into the first vertical grooves and are attached to the tops of the second rollers. Fixed seats are fixed at both ends of the inside of the protective plate. The fixed seats are located at the inner bottom of the first vertical grooves. The bottom ends of the slings are fixedly connected to the fixed seats. A water level induction switch assembly for controlling the start of the motor is provided inside the dike.

[0012] Preferably, the water level induction switch assembly includes a through groove and a liquid level switch. A through groove is opened at the middle position of the inside of the dike. The shape of the through groove is in the shape of a "匚". Both ends of the through groove are respectively located at the top and bottom of the dike. And filters are provided at the ends of the through groove. A liquid level switch electrically connected to the motor is installed at the inner bottom of the through groove.

[0013] Preferably, the upper reinforcement mechanism includes a shaft rod, a gear, and a transmission component. The shaft rod is rotatably installed at the middle position of the top of the outside of the dike. Top rods are fixed at both ends of the shaft rod. A transmission component for the rotation of the shaft rod is provided at the inner top of the dike.

[0014] Preferably, the transmission component includes a top block, a second vertical groove, a first sliding groove, a slider, a return spring, a first rack, and a gear. The top block is fixed at the middle position of the inner bottom of the protective plate. The second vertical groove is vertically opened at the middle position of the inside of the dike. And the second vertical groove extends into the storage tank. A first sliding groove is opened at the top end of the inner side of the second vertical groove. A slider is horizontally slidably installed inside the first sliding groove. The shape of the slider is trapezoidal. And the inclined surface on the slider faces downward and is located inside the second vertical groove. A return spring is installed between the end of the slider and the inner end of the return spring. A first rack is fixed at the inner end of the slider. And the first rack is slidably connected to the dike. A gear is fixed at the middle position of the shaft rod. The bottom of the gear meshes with the first rack.

[0015] Preferably: the sealing mechanism includes a second slide groove, a sealing strip and a second rack, the second slide groove is opened at the top of the inner side of the embankment along the length direction of the embankment, a sealing strip is slidably installed inside the second slide groove, a second rack meshing with the top of the gear is fixed on the inner side edge of the sealing strip, and the second rack is slidably connected to the embankment.

[0016] Preferably: the lower supporting mechanism includes a support block and a telescopic assembly, the support block is slidably arranged on the inner side of the embankment, the support block is located below the highest lifting position of the protective plate, and the top of the support block and the bottom end of the highest lifting position of the protective plate are located on the same horizontal plane, and a telescopic assembly for controlling the horizontal sliding of the support block is provided inside the embankment.

[0017] Preferably: the telescopic assembly includes a transmission bin, a second floating plate, a hinged seat, a connecting rod and a positioning block. The transmission bin is opened inside the embankment, and the transmission bin is communicated with the through groove. A second floating plate is horizontally arranged inside the transmission bin, a hinged seat is installed on the top of the second floating plate, and connecting rods are symmetrically hingedly installed at both ends of the hinged seat. The two sets of connecting rods are respectively hinged to the end of the transmission bin and the end of the support block, and a positioning block that fits the top of the connecting rod is vertically fixed to the inner end of the support block.

[0018] The beneficial effects of the present invention are:

[0019] The present invention provides a water level sensing automatic height variable dike flood control structure. A protective plate is vertically slidably arranged at the bottom of the inner side of the dike, and the protective plate is initially located below the water surface, so as to form protection between the dike and the slope, reduce the scouring of the slope by the river water, and ensure the stability of the dike. The structure is used in conjunction with a lifting mechanism composed of a wire coil, a motor, a reducer, a sling, a first roller, a second roller, and a liquid level switch. When the flood reaches a set height, the lifting mechanism can be automatically controlled to start, and the protective plate can be lifted to a fixed height without shaking as the liquid level rises, thereby improving the stability of the protection. In addition, when the liquid level is lower than the set height, the lifting mechanism can be used to automatically release the protective plate, so that the structure is more practical.

[0020] By fixing a top block on the back of the protective plate, and then cooperating with a transmission assembly consisting of a first slide groove, a slider, a return spring, a first rack and a gear, the rotation of the shaft rod can be automatically controlled when the protective plate rises to the highest point, and then the top rod at the end of the shaft rod is automatically attached to the outer surface of the protective plate, and the protective plate is externally supported and reinforced, thereby improving the stability of the protective plate. In addition, the transmission assembly is used in conjunction with the sealing strip inside the second slide groove and the second rack. During the rotation of the top rod, the gear controls the second rack to drive the sealing strip to translate, which can simultaneously seal the protective plate and the embankment, effectively preventing flood leakage;

[0021] By setting a support block for horizontal sliding on the inner side of the levee, and cooperating with the telescopic mechanism composed of the second floating plate, hinged seat, connecting rod and positioning block inside the transmission bin, the support block can be automatically pushed out after the liquid level rises, and the support block fits the bottom of the protective plate. During the flood prevention process, the protective plate is simultaneously subjected to the upward traction force applied by the sling from its bottom, the resistance provided by the inner side of the levee to its bottom, the supporting force provided by the top rod at its top, and the support formed by the support block at its bottom, thereby improving the stability of the protective plate and achieving better flood prevention effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a diagram of the initial flood protection state of a preferred embodiment of a water level sensing automatically variable height dam flood protection structure of the present invention;

[0023] Figure 2 It is a perspective view of a preferred embodiment of a water level sensing automatically variable height dam flood control structure in an elevated flood protection state of the present invention;

[0024] Figure 3 It is a structural diagram of the back of the protective plate of a preferred embodiment of a water level sensing automatically variable height dam flood control structure of the present invention;

[0025] Figure 4 It is a structural diagram of the back side of a levee of a preferred embodiment of a water level sensing automatically variable height levee flood control structure of the present invention;

[0026] Figure 5 It is a cross-sectional view of the middle of a dike of a preferred embodiment of a water level sensing automatically variable height dike flood control structure of the present invention;

[0027] Figure 6 This is a preferred embodiment of a water level sensing automatically variable height dam flood control structure of the present invention. Figure 5 Enlarged view of point A in the middle;

[0028] Figure 7 It is a cross-sectional view of the end of a dike of a preferred embodiment of a water level sensing automatically variable height dike flood control structure of the present invention;

[0029] Figure 8 This is a preferred embodiment of a water level sensing automatically variable height dam flood control structure of the present invention. Figure 7 Enlarged view of point B in the middle.

[0030] In the figure: 1, slope; 2, foundation pile; 3, embankment; 4, protective plate; 5, self-lifting mechanism; 6, upper reinforcement mechanism; 7, lower support mechanism; 8, sealing mechanism; 9, storage groove; 10, groove; 11, first floating plate; 12, mounting groove; 13, wire coil; 14, motor; 15, reducer; 16, sling; 17, first roller; 18, first vertical groove; 19, second roller; 20, fixed seat; 21, through groove; 22, liquid level switch; 23, top block; 24, second vertical groove; 25, first slide; 26, slider; 27, return spring; 28, first rack; 29, shaft; 30, gear; 31, top rod; 32, second slide; 33, sealing strip; 34, second rack; 35, support block; 36, transmission bin; 37, second floating plate; 38, hinged seat; 39, connecting rod; 40, positioning block. DETAILED DESCRIPTION

[0031] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0032] like Figure 1-Figure 8 As shown, this embodiment provides a water level sensing automatically variable height dam flood control structure, including a slope 1, foundation piles 2 vertically cast inside the slope 1, and a levee 3 installed on the top of the foundation piles 2, a protective plate 4 is vertically slidably provided at the bottom of the inner side of the levee 3, and the protective plate 4 shields the connection between the foundation piles 2 and the slope 1 and the levee 3, a self-lifting mechanism 5 for controlling the vertical movement of the protective plate 4 is provided inside the levee 3, an upper reinforcement mechanism 6 for supporting the outer side of the protective plate 4 is provided at the top of the outer side of the levee 3, a sealing mechanism 8 for blocking the gap between the levee 3 and the protective plate 4 is provided at the top of the inner side of the levee 3 along the length direction, and a lower support mechanism 7 for limiting the position of the protective plate 4 is slidably provided below the sealing mechanism 8.

[0033] General working principle: During the use of the levee 3, when the flood water level is lower than the levee 3 and the starting height is set, the protective plate 4 is always located at the bottom of the river and blocks the connection between the slope 1 and the levee 3 to reduce the scouring of the slope 1 by the river water. When the flood water level is higher than the starting height, the self-lifting mechanism 5 will start to control the vertical upward movement of the protective plate 4 to increase the height of the flood control, and after the protective plate 4 moves to the highest point, it is positioned. At the same time, the upper reinforcement mechanism 6 is used to support the outer side of the protective plate 4, and the lower support mechanism 7 is used to support the bottom of the protective plate 4. In addition, a sealing mechanism 8 is used to improve the sealing effect between the levee 3 and the protective plate 4 to avoid leakage of floods.

[0034] In this embodiment, a storage groove 9 is provided inside the slope 1 to limit the bottom of the protective plate 4, and grooves 10 are provided at the tops of both sides of the storage groove 9 along the length direction. A first floating plate 11 is hingedly installed at the inner top of the groove 10 on the side of the storage groove 9 away from the embankment 3.

[0035] Local working principle: the protective plate 4 is always located inside the storage tank 9, and the first floating plate 11 is squeezed into the inside of the groove 10 to be hidden. When the protective plate 4 rises, the first floating plate 11 will flip over, and the other end will be stuck in the inside of another groove 10, forming a protection at the top of the storage tank 9 to prevent impurities in the water from falling into the storage tank 9. If the protective plate 4 is reset, the gravity of the protective plate 4 can be used to press the first floating plate 11 into the inside of the groove 10 to be hidden.

[0036] In this embodiment, the top of the first floating plate 11 is an inclined surface, and the bottom end of the inclined surface is located at a side away from the embankment 3 .

[0037] Partial working principle: The inclined surface on the top of the first floating plate 11 enables the impurities to slide down after falling onto the top of the first floating plate 11 .

[0038] In this embodiment, the self-lifting mechanism 5 includes a mounting groove 12, a wire coil 13, a motor 14, a reducer 15, a sling 16, a first roller 17, a first vertical groove 18, a second roller 19, a fixing seat 20 and a water level sensing switch assembly. The mounting groove 12 is symmetrically opened at both ends of the outer side of the levee 3, and the wire coil 13 is rotatably installed between the two ends of the levee 3. The wire coil 13 passes through the inside of the mounting groove 12. A motor 14 is installed at one end of the levee 3, and a reducer 15 is installed at the output end of the motor 14. The output end of the reducer 15 is connected to the end of the wire coil 13. The two ends of the wire coil 13 are both wound with a sling 16. A first roller 17 is rotatably installed at the inner top, and the sling 16 passes through the top of the first roller 17. First vertical grooves 18 are vertically opened at both ends of the inner side of the levee 3, and a second roller 19 is rotatably installed at the top of the first vertical groove 18. The bottom end of the first vertical groove 18 extends to the inside of the storage groove 9, and the sling 16 extends to the inside of the first vertical groove 18 and fits on the top of the second roller 19. Fixed seats 20 are fixed at both ends of the inner side of the protective plate 4. The fixed seat 20 is located at the inner bottom of the first vertical groove 18. The bottom end of the sling 16 is fixedly connected to the fixed seat 20. A water level sensing switch component for controlling the start of the motor 14 is provided inside the levee 3.

[0039] Local working principle: After the flood level reaches a certain height, the water level induction switch assembly will automatically control the start of the motor 14. The motor 14 drives the wire reel 13 to rotate, winding up the sling 16. The bottom end of the sling 16 is fixed to the fixed seat 20 at the bottom of the back of the protection plate 4. Therefore, the protection plate 4 is lifted upward. Since the fixed seat 20 is located in the first vertical groove 18, the protection plate 4 can move vertically. The protection plate 4 is lifted to the top of the dike 3 and limited. Then flood control operations are carried out. If the water level drops, the water level induction switch assembly will control the start of the motor 14 again to release the sling 16 and reset the protection plate 4.

[0040] In this embodiment, the water level induction switch assembly includes a through groove 21 and a liquid level switch 22. A through groove 21 is opened at the middle position inside the dike 3. The shape of the through groove 21 is in the shape of a "匚". The two ends of the through groove 21 are respectively located at the top and bottom of the dike 3, and filters are provided at the ends of the through groove 21. A liquid level switch 22 electrically connected to the motor 14 is installed at the inner bottom of the through groove 21.

[0041] Local working principle: When the liquid level rises, water will enter from the bottom of the through groove 21. When the liquid level is higher than the position where the liquid level switch 22 is located, the floating ball will trigger the liquid level switch 22 to control the motor 14 to rotate forward to wind up the sling 16 by a fixed length. When the liquid level is lower than the position where the liquid level switch 22 is located, it will control the motor 14 to rotate in reverse to release the sling 16 by a fixed length.

[0042] In this embodiment, the upper reinforcement mechanism 6 includes a shaft rod 29, a gear 30 and a transmission assembly. The shaft rod 29 is rotatably installed at the middle position at the top outside the dike 3. Top rods 31 are fixed to both ends of the shaft rod 29. A transmission assembly for the rotation of the shaft rod 29 is provided at the inner top of the dike 3.

[0043] Local working principle: During the process of the protection plate 4 rising to the topmost position, at this time the transmission assembly will control the rotation of the shaft rod 29, and the top rod 31 at the end of the shaft rod 29 will be attached to the outside of the protection plate 4 to support the top of the protection plate 4.

[0044] In this embodiment, the transmission assembly includes a top block 23, a second vertical groove 24, a first slide groove 25, a slider 26, a return spring 27, a first rack 28 and a gear 30. The top block 23 is fixed at the middle position of the inner bottom of the protective plate 4. The second vertical groove 24 is vertically opened at the middle position of the inner side of the levee 3, and the second vertical groove 24 extends to the inside of the storage groove 9. The top of the inner side of the second vertical groove 24 is provided with a first slide groove 25. A slider 26 is horizontally slidably installed inside the first slide groove 25. The shape of the slider 26 is trapezoidal, and the inclined surface on the slider 26 faces downward and is located inside the second vertical groove 24. A return spring 27 is installed between the end of the slider 26 and the inner end of the return spring 27. The inner end of the slider 26 is fixed with a first rack 28, and the first rack 28 is slidably connected to the levee 3. A gear 30 is fixed at the middle position of the shaft 29, and the bottom of the gear 30 is meshed with the first rack 28.

[0045] Local working principle: during the rising process of the protective plate 4, the top block 23 will be driven to move upward inside the second vertical groove 24. When the top block 23 contacts the slider 26, the slider 26 will be squeezed toward the inside of the first slide groove 25. At the same time, the first rack 28 will move horizontally. The movement of the first rack 28 drives the gear 30 to rotate clockwise. The gear 30 is installed on the shaft 29. Therefore, the rotation of the shaft 29 is controlled by transmission, and the top rod 31 at the end of the shaft 29 is fitted with the outer side of the protective plate 4.

[0046] In this embodiment, the sealing mechanism 8 includes a second slide groove 32, a sealing strip 33 and a second rack 34. The second slide groove 32 is opened at the top of the inner side of the embankment 3 along the length direction of the embankment 3. The sealing strip 33 is slidably installed inside the second slide groove 32. The inner side edge of the sealing strip 33 is fixed with a second rack 34 that meshes with the top of the gear 30, and the second rack 34 is slidably connected to the embankment 3.

[0047] Local working principle: During the rotation of the gear 30, the second rack 34 will be controlled to move toward the protective plate 4 at the same time. The second rack 34 will push the sealing strip 33 out from the inside of the second slide groove 32, and the end of the sealing strip 33 will fit tightly against the protective plate 4 to increase the sealing effect between the protective plate 4 and the embankment 3.

[0048] In this embodiment, the lower support mechanism 7 includes a support block 35 and a telescopic assembly. The support block 35 is slidably arranged on the inner side of the embankment 3. The support block 35 is located below the highest lifting position of the protective plate 4, and the top of the support block 35 and the bottom end of the highest lifting position of the protective plate 4 are located on the same horizontal plane. A telescopic assembly for controlling the horizontal sliding of the support block 35 is provided inside the embankment 3.

[0049] Local working principle: After the protective plate 4 rises to the highest position, if the liquid level of the flood continues to rise, the telescopic assembly is used to control the support block 35 to slide out from the inside of the embankment 3 and fit to the bottom of the protective plate 4 to support the bottom of the protective plate 4.

[0050] In this embodiment, the telescopic assembly includes a transmission bin 36, a second floating plate 37, an articulated seat 38, a connecting rod 39 and a positioning block 40. The transmission bin 36 is opened inside the embankment 3, and the transmission bin 36 is connected to the through groove 21. The second floating plate 37 is horizontally arranged inside the transmission bin 36, and an articulated seat 38 is installed on the top of the second floating plate 37. Connecting rods 39 are symmetrically hingedly installed at both ends of the articulated seat 38. The two sets of connecting rods 39 are respectively hinged to the ends of the transmission bin 36 and the ends of the support block 35. The inner end of the support block 35 is vertically fixed with a positioning block 40 that fits with the top of the connecting rod 39.

[0051] Local working principle: When the liquid level of the flood rises and enters the transmission chamber 36, the upward movement of the second floating plate 37 will be controlled. The upward movement of the second floating plate 37 will expand the two connecting rods 39 outward. The maximum expansion angle of the connecting rod 39 is 180°. As the connecting rod 39 expands, the support block 35 will be pushed out. If the flood level is lower than the transmission chamber 36, the flood will not cause a large impact force on the protective plate 4 at this time. Therefore, there is no need to use the support block 35 to reinforce the protective plate 4. When the water level drops, the second floating plate 37 automatically moves down, and the connecting rod 39 can be used to pull the support block 35 back to the inside of the levee 3 for reset, so as to prevent the protective plate 4 from being reset smoothly.

[0052] The above description is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which belong to the protection scope of the present invention.

Claims

1. A water level sensing automatically variable height dam flood control structure, comprising a slope (1), a foundation pile (2) vertically cast inside the slope (1), and a levee (3) installed on top of the foundation pile (2), characterized in that: A protective plate (4) is vertically slidably arranged at the bottom inside the dike (3), and the protective plate (4) shields the connection between the foundation pile (2) and the slope (1) and the dike (3). An automatic lifting mechanism (5) for controlling the vertical movement of the protective plate (4) is arranged inside the dike (3). An upper reinforcement mechanism (6) for supporting the outer side surface of the protective plate (4) is arranged at the top outside the dike (3). A sealing mechanism (8) for sealing the gap between the dike (3) and the protective plate (4) is arranged along the length direction at the top inside the dike (3). A lower support mechanism (7) for limiting the protective plate (4) is slidably arranged below the sealing mechanism (8).

2. A water level sensing automatically variable height dam flood control structure according to claim 1, characterized in that: A storage groove (9) for limiting the bottom of the protective plate (4) is arranged inside the slope (1). Grooves (10) are opened along the length direction at the tops on both sides of the storage groove (9). A first floating plate (11) is hingedly installed at the inner top of the groove (10) on the side of the storage groove (9) away from the dike (3).

3. A water level sensing automatically variable height dam flood control structure according to claim 2, characterized in that: The top of the first floating plate (11) is beveled, and the bottom end of the bevel is located on the side away from the dike (3).

4. The water level sensing automatically variable height dam flood control structure according to claim 3 is characterized by: The automatic lifting mechanism (5) includes an installation groove (12), a wire reel (13), a motor (14), a speed reducer (15), a suspension cable (16), a first roller (17), a first vertical groove (18), a second roller (19), a fixed seat (20) and a water level induction switch assembly. The installation grooves (12) are symmetrically opened at both ends outside the dike (3). A wire reel (13) is rotatably installed between the two ends of the dike (3). The wire reel (13) passes through the inside of the installation groove (12). A motor (14) is installed at one end of the dike (3). The output end of the motor (14) is installed with a speed reducer (15). The output end of the speed reducer (15) is connected to the end of the wire reel (13). Suspension cables (16) are wound and installed at both ends of the wire reel (13). First rollers (17) are rotatably installed at the inner tops of the installation grooves (12). The suspension cables (16) pass over the tops of the first rollers (17). First vertical grooves (18) are vertically opened at both ends inside the dike (3). Second rollers (19) are rotatably installed at the tops of the first vertical grooves (18). The bottom ends of the first vertical grooves (18) extend into the storage groove (9). The suspension cables (16) extend into the first vertical grooves (18) and are attached to the tops of the second rollers (19). Fixed seats (20) are fixed at both ends inside the protective plate (4). The fixed seats (20) are located at the inner bottoms of the first vertical grooves (18). The bottom ends of the suspension cables (16) are fixedly connected to the fixed seats (20). A water level induction switch assembly for controlling the start of the motor (14) is arranged inside the dike (3).

5. The water level sensing automatically variable height dam flood control structure according to claim 4 is characterized by: The water level induction switch assembly includes a through groove (21) and a liquid level switch (22). A through groove (21) is opened at the middle position inside the dike (3). The shape of the through groove (21) is in a U shape. The two ends of the through groove (21) are respectively located at the top and bottom of the dike (3), and filters are arranged at the ends of the through groove (21). A liquid level switch (22) electrically connected to the motor (14) is installed at the inner bottom of the through groove (21).

6. The water level sensing automatically variable height dam flood control structure according to claim 5, characterized in that: The upper reinforcement mechanism (6) comprises a shaft (29), a gear (30) and a transmission assembly. The shaft (29) is rotatably mounted at the middle position of the outer top of the embankment (3). Both ends of the shaft (29) are fixed with top rods (31). The inner top of the embankment (3) is provided with a transmission assembly for rotating the shaft (29).

7. The water level sensing automatically variable height dam flood control structure according to claim 6, characterized in that: The transmission assembly comprises a top block (23), a second vertical slot (24), a first slide slot (25), a slider (26), a return spring (27), a first rack (28) and a gear (30), wherein the top block (23) is fixed at the middle position of the bottom of the inner side of the protection plate (4), the second vertical slot (24) is vertically opened at the middle position of the inner side of the embankment (3), and the second vertical slot (24) extends to the inside of the storage slot (9), the top end of the inner side of the second vertical slot (24) is provided with a first slide slot (25), and the inner side of the first slide slot (25) is horizontally opened. A slider (26) is slidably installed, the slider (26) is in a trapezoidal shape, and the inclined surface on the slider (26) faces downward and is located inside the second vertical groove (24). A return spring (27) is installed between the end of the slider (26) and the inner end of the return spring (27). A first rack (28) is fixed to the inner end of the slider (26), and the first rack (28) is slidably connected to the embankment (3). A gear (30) is fixed at the middle position of the shaft rod (29), and the bottom of the gear (30) is meshed with the first rack (28).

8. The water level sensing automatically variable height dam flood control structure according to claim 7, characterized in that: The sealing mechanism (8) comprises a second slide groove (32), a sealing strip (33) and a second rack (34); the second slide groove (32) is opened at the top of the inner side of the embankment (3) along the length direction of the embankment (3); a sealing strip (33) is slidably installed inside the second slide groove (32); a second rack (34) meshing with the top of the gear (30) is fixed to the inner side edge of the sealing strip (33); and the second rack (34) is slidably connected to the embankment (3).

9. A water level sensing automatically variable height dam flood control structure according to any one of claims 5 to 8, characterized in that: The lower support mechanism (7) comprises a support block (35) and a telescopic assembly. The support block (35) is slidably arranged on the inner side of the embankment (3). The support block (35) is located below the highest lifting position of the protective plate (4), and the top of the support block (35) and the bottom end of the highest lifting position of the protective plate (4) are located on the same horizontal plane. The interior of the embankment (3) is provided with a telescopic assembly for controlling the horizontal sliding of the support block (35).

10. A water level sensing automatically variable height dam flood control structure according to claim 9, characterized in that: The telescopic assembly comprises a transmission bin (36), a second floating plate (37), an articulated seat (38), a connecting rod (39) and a positioning block (40). The transmission bin (36) is opened inside the dike (3), and the transmission bin (36) is connected to the through groove (21). A second floating plate (37) is horizontally arranged inside the transmission bin (36). A hinged seat (38) is installed on the top of the second floating plate (37). Connecting rods (39) are symmetrically articulated at both ends of the articulated seat (38). Two groups of connecting rods (39) are respectively articulated to the ends of the transmission bin (36) and the ends of the support block (35). A positioning block (40) that fits the top of the connecting rod (39) is vertically fixed to the inner end of the support block (35).

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