Hydraulic dam with sand discharge structure
By designing the sand discharge cylinder and expandable extension dam structure in the hydraulic dam, the problems of water leakage and water storage depth caused by dam sand deposition are solved, and flexible adjustment of automatic sand discharge and water storage depth is achieved, ensuring that The normal operation and water storage effect of hydraulic dams.
Patent Information
- Application Number
- CN202110923006.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-08-12
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2041-08-12
AI Technical Summary
During the use of existing dams, sand and stone deposition may cause water leakage and rotation difficulties. The fixed size flip door dam cannot meet the needs of areas with large changes in precipitation, resulting in unadjustable water storage depth, affecting flood control and water storage. Effect.
A hydraulic dam with a sand discharge structure was designed, and automatic sand discharge is realized by regularly opening the sand discharge holes of the sand discharge tube. The water storage depth is changed by using the expandable or closed extension dam, and the water stops effectively when the movable dam rotates. Prevent debris from entering and ensure normal operation.
It has achieved the saving of water flow, preventing water leakage and debris from entering, ensuring the normal rotation of the hydraulic dam, and improving the water storage depth through an adjustable extension dam, adapting to different precipitation conditions, and avoiding waste of water resources and flood disasters.
Smart Images
Figure CN113463567B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of water conservancy facility construction, and more specifically to a hydraulic dam with a sand discharge structure. Background Art
[0002] A dam is a water retaining structure that intercepts the flow of water in rivers and canals to raise the water level or regulate the flow. It is used for flood control, water supply, irrigation, hydroelectric power generation, and improved navigation. Commonly used dams include rubber dams, sluice gates, and flap gate dams.
[0003] As time goes by, a lot of sand and gravel will be deposited on the water-facing surface of the dam. The sluice gate removes sand by raising the gate, and the flap gate dam removes sand by lying down on the dam surface. Both the sluice gate and the flap gate dam waste a lot of water. The rubber dam is made of rubber material. When there is too much sand and gravel, it is not easy to rotate and it is difficult to remove sand. If the sand is not removed thoroughly, it may cause water leakage at the bottom of the rubber dam.
[0004] Due to the limitation of its material, rubber dam has poor impact resistance, is easily scratched by sharp objects, and the dam body is easy to burst; although the dam is strong and durable, its construction period is long and the cost is high; the flap gate dam is prefabricated, the construction period is relatively short, and the material is strong, so it has been the most widely used in recent years. However, there is a very big disadvantage of the flap gate dam, which will leak when it rotates. Leakage will affect the water storage effect. The biggest problem is that the flap gate dam may not rotate normally due to the intrusion of debris. In actual application, it is found that the flap gate dam with fixed size cannot meet the use needs, especially in areas with large precipitation or unstable precipitation. For example, once the precipitation suddenly increases, the water storage depth of the flap gate dam with fixed height size cannot be changed. After exceeding the height of the flap gate dam, water leaks from the top of the dam, which cannot play a role in flood control and cannot store water to the maximum extent, resulting in water resource waste and flood disasters. Summary of the invention
[0005] In order to solve the above problems, the present invention provides a hydraulic dam with a sand discharge structure, which realizes automatic sand discharge by regularly opening the sand discharge holes of the sand discharge cylinder, saves water flow, and changes the water storage depth of the hydraulic dam by using an expandable or closable extension dam. When the movable dam rotates, it can effectively stop water and prevent debris from entering the bottom of the movable dam, thereby ensuring the normal operation of the hydraulic dam.
[0006] According to one aspect of the present invention, a hydraulic dam with a sand discharge structure is provided, which includes a dam foundation and a movable dam, the dam foundation is fixed with a base, the bottom of the movable dam is provided with a rotating shaft, the rotating shaft can be rotatably connected to the base, the dam foundation is provided with a water stop assembly, the water stop assembly is located on the water facing side of the movable dam, the water stop assembly includes a water stop rubber skin, a support frame and a bracket, the water stop rubber skin is U-shaped, the support frame is installed at the opening of the U-shaped water stop rubber skin, the bracket is located at the bottom of the water stop rubber skin, and the bracket is fixedly connected to the water stop rubber skin and the support frame, the bracket is fixed to the dam foundation, the water stop rubber skin abuts against the outer wall of the rotating shaft, the back water surface of the movable dam is provided with a sand discharge cylinder, the sand discharge cylinder has a sand discharge hole, the movable dam is provided with a sand collecting hole connected to the sand discharge hole, the position of the sand collecting hole is higher than the position of the water stop assembly, the end of the sand discharge cylinder away from the sand collecting hole is provided with a cover body, and a driving assembly is provided between the cover body and the sand discharge cylinder to drive the cover body to open or close. Therefore, during the rotation of the rotating shaft, the water-stop component can prevent water from leaking from the rotating part or prevent debris from entering the connection between the rotating shaft and the base to affect the rotation of the movable dam. The U-shaped water-stop rubber skin structure is relatively special, and the front end of the water-stop rubber skin is kept in an open state through the support frame, so that the outer wall of the water-stop rubber skin can fit closely with the rotating shaft as much as possible, thereby improving the water-stopping effect; the driving component drives the cover body to open or close. When the cover body is opened, the deposited sand and gravel enter the sand discharge hole of the sand discharge tube through the sand collecting hole, and then enter the back water surface of the movable dam. Sand discharge can be achieved without the movable dam lying down, thereby saving water flow. Moreover, since the outer wall of the U-shaped water-stop rubber skin fits closely with the rotating shaft, sand and gravel can also be prevented from entering between the water-stop rubber skin and the movable dam, thereby ensuring the normal rotation of the movable dam.
[0007] In some embodiments, the driving assembly includes a first hydraulic cylinder, a first connecting rod, a second connecting rod and a third connecting rod, the first connecting rod is fixed to the outer wall of the sand discharge tube, the two ends of the third connecting rod are respectively hinged to the cover body and one end of the first connecting rod, the two ends of the first hydraulic cylinder are respectively hinged to the first connecting rod and the second connecting rod, and the other end of the second connecting rod is connected to the cover body. Thus, the first hydraulic cylinder, the first connecting rod, the second connecting rod and the third connecting rod form a quadrilateral mechanism, when the first hydraulic cylinder retracts, the second connecting rod is driven to rotate upward, the second connecting rod drives the cover body to rotate toward the side away from the sand discharge tube, the third connecting rod and the bottom of the first hydraulic cylinder will also rotate relative to the first connecting rod, the cover body opens and disengages from the sand discharge tube, the sand collecting hole, the sand discharge hole and the back surface of the movable dam are connected, and sand discharge is realized; when the first hydraulic cylinder is extended, the cover body rotates toward the side close to the sand discharge tube, and finally the cover body is closed.
[0008] In some embodiments, the cover body is provided with two first connecting rods, two third connecting rods, and one second connecting rod, the two first connecting rods are symmetrically arranged relative to the first hydraulic cylinder, a fourth connecting rod is arranged between the two first connecting rods, the first hydraulic cylinder, the fourth connecting rod and the two first connecting rods are hinged by a first pin, the two first connecting rods are respectively hinged to the two third connecting rods by a second pin, and the third connecting rod is aligned with the fourth connecting rod. Thus, when the first hydraulic cylinder drives the cover body, the fourth connecting rod can play a supporting role, and the symmetrical design of the first connecting rod and the third connecting rod can also improve the operating stability of the first hydraulic cylinder.
[0009] In some embodiments, a gap is formed after the support frame and the waterproof rubber skin are assembled, and a hollow rubber hose is arranged in the gap. Therefore, the hollow rubber hose can support the waterproof rubber skin from the inner side of the waterproof rubber skin, which can increase the elasticity of the waterproof rubber skin and make the outer wall of the waterproof rubber skin more effectively against the outer wall of the rotating shaft, greatly improving the waterproof effect.
[0010] In some embodiments, the support frame and the bracket are both made of channel steel. Therefore, the channel steel is grooved steel, the upper and lower walls of the support frame can firmly support the opening of the waterproof rubber skin, and the upper wall of the bracket and the lower wall of the support frame can stably clamp the edge of the waterproof rubber skin. This installation method can reduce the probability of the waterproof rubber skin being damaged, and when the waterproof rubber skin is aged, it is also very convenient to disassemble and replace.
[0011] In some embodiments, an extension dam is hinged on the upper part of the movable dam, and a second hydraulic cylinder is provided between the extension dam and the movable dam. The second hydraulic cylinder drives the extension dam to rotate relative to the movable dam to realize the expansion or closing of the extension dam. When the extension dam is expanded, the extension dam extends toward the side away from the movable dam, and when the extension dam is closed, the extension dam is folded on the back surface of the movable dam. Therefore, when the water storage depth needs to be increased, the second hydraulic cylinder acts on the extension dam, and the extension dam rotates relative to the movable dam and then expands. The extension dam extends upward along the rising direction of the movable dam, thereby increasing the water storage depth of the hydraulic dam. The expansion and closing are realized by rotating the extension dam, changing the water storage depth of the hydraulic dam, and avoiding the hidden dangers caused by the sudden increase in precipitation.
[0012] In some embodiments, the back surface of the movable dam is provided with a plurality of ribs, the extension dam is provided with a plurality of clamps, the clamps are located on both sides of the ribs and are hinged by short pins, the extension dam is provided with connecting plates, the connecting plates and the clamps are connected by a first long pin, the upper end of the second hydraulic cylinder is hinged with the first long pin, the lower end of the second hydraulic cylinder is hinged with a second long pin, and the second long pin is connected to the ribs. Thus, the hinge of the clamp and the ribs, the retractable second hydraulic cylinder, the first long pin and the second long pin at both ends of the second hydraulic cylinder form a connecting rod mechanism, when the extension dam needs to rotate relative to the movable dam, the upper end of the second hydraulic cylinder is retracted, driving the first long pin to move, the clamps rotate relative to the ribs, and the extension dam rotates relative to the movable dam, completing the expansion or closing of the extension dam.
[0013] In some embodiments, the dam base is provided with a receiving groove, and a supporting platform is provided on one side of the receiving groove. When the movable dam is rotated relative to the base to be closed, the extension dam is folded on the back surface of the movable dam, and the top of the movable dam is placed on the supporting platform. Therefore, when the movable dam is not used or is transported after being manufactured, the extension dam can be folded into the movable dam and the movable dam can be folded into the receiving groove. The tops of the folded movable dam and the extension dam can be supported on the supporting platform, which is convenient for transportation and also helps to protect the hydraulic mechanism of the movable dam and the second hydraulic cylinder of the extension dam.
[0014] The advantages of the present invention are as follows: the cover body and the extension dam of the present invention both adopt hydraulic cylinders to ensure the stable operation of the hydraulic dam, and the positions of the sand discharge tube and the water-stopping assembly are reasonable. Through the openable or closed cover body, the deposited sand and gravel enter the sand discharge hole of the sand discharge tube through the sand collecting hole and then enter the back water surface of the movable dam. Sand discharge can be achieved without the movable dam lying down, and because the outer wall of the U-shaped water-stopping rubber skin is tightly fitted with the rotating shaft, sand and gravel can be prevented from entering between the water-stopping rubber skin and the movable dam; the U-shaped water-stopping rubber skin is installed through the support frame and bracket of the channel steel structure, and a hollow rubber hose is assembled in the U-shaped water-stopping rubber skin, so that the outer wall of the water-stopping rubber skin is tightly fitted with the rotating shaft, which can prevent debris from affecting the rotation of the movable dam and effectively realize the water stopping at the bottom of the movable dam, and the water-stopping rubber skin is convenient for later maintenance and disassembly; the combined structure of the extension dam and the movable dam is ingenious, and through the expandable or closed extension dam, the overall height size of the hydraulic dam is changed, the water storage depth of the hydraulic dam is increased, and the hidden dangers caused by emergencies are avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of an embodiment of a hydraulic dam with a sand discharge structure of the present invention, in which the extension dam is in an unfolded state and the cover of the sand discharge cylinder is in an open state;
[0016] Figure 2 yes Figure 1 Rear view of
[0017] Figure 3 yes Figure 1Side view of
[0018] Figure 4 It is a schematic diagram of the structure of a hydraulic dam with a sand discharge structure in a closed state;
[0019] Figure 5 It is a structural schematic diagram of an embodiment of a hydraulic dam with a sand discharge structure of the present invention, and the extension dam is in a closed state at this time;
[0020] Figure 6 It is a structural schematic diagram of the water stop assembly;
[0021] Figure 7 Schematic diagram of the structure of the sand discharge tube, the cover body and the driving assembly, in which the first pin and the second pin are not shown;
[0022] Figure 8 It is a structural schematic diagram of the connection between the sand discharge cylinder, the cover body and the driving assembly;
[0023] Fig. 9 yes Figure 8 Side view of
[0024] Fig.10 It is a structural schematic diagram when the cover body and the sand discharge tube are in a closed state. DETAILED DESCRIPTION
[0025] The present invention will be further described below in conjunction with specific implementation modes.
[0026] like Figures 1 to 4 As shown, a hydraulic dam with a sand discharge structure according to an embodiment of the present invention comprises a dam foundation 100 and a movable dam 1. The dam foundation 100 is cast with concrete, and a base 101 is fixed to the dam foundation 100 by pre-embedding. A rotating shaft 10 is fixed to the bottom of the movable dam 1, and the rotating shaft 10 is rotatably connected to the base 101. A hydraulic mechanism 102 is installed on the base 101 and is hinged to the rotating shaft 10 and the movable dam 1, so that the rotating shaft 10 drives the movable dam 1 to rotate. A water stop assembly 4 is fixedly installed on the dam foundation 100, and the water stop assembly 4 is located on the side of the water-facing surface 11 of the movable dam 1. A sand discharge barrel 5 is fixedly installed on the back surface 12 of the movable dam 1 by screws, and the number of the sand discharge barrel 5 can be adjusted according to the length of the movable dam 1. Each sand discharge tube 5 has a sand discharge hole 50 at its center, and a sand collecting hole 110 connected to the sand discharge hole 50 is provided on the movable dam 1. The position of the sand collecting hole 110 is higher than that of the water stop assembly 4. A cover body 51 is connected to one end of the sand discharge tube 5 away from the sand collecting hole 110, and a driving assembly is provided between the cover body 51 and the sand discharge tube 5, and the cover body 51 is driven to open or close by the driving assembly.
[0027] like Figure 3 and 6As shown, the water-stop assembly 4 specifically includes a water-stop rubber skin 41, a support frame 42 and a bracket 43. The support frame 42 and the bracket 43 are both made of long channel steel, the cross-section of the water-stop rubber skin 41 is U-shaped, and the length of the water-stop rubber skin 41 is consistent with the support frame 42 and the bracket 43. The bracket 43 is fixed to the dam foundation 100 by screws or pre-embedded methods, and the support frame 42 is installed at the opening of the U-shaped water-stop rubber skin 41. After the support frame 42 and the water-stop rubber skin 41 are assembled, a gap is formed, and a hollow rubber hose is arranged in the gap. The water-stop rubber skin 41 is located above the bracket 43, and the bracket 43 is locked and fixedly connected with the water-stop rubber skin 41 and the support frame 42 by screws and nuts (not shown in the figure), and the installed water-stop rubber skin 41 abuts against the outer wall of the rotating shaft 10.
[0028] During the rotation of the shaft 10, the water-stop assembly 4 can prevent water from leaking from the rotation point or prevent debris from entering the connection between the shaft 10 and the base 101 to affect the rotation of the movable dam 1. The U-shaped water-stop rubber skin 41 has a special structure, and the front end of the water-stop rubber skin 41 is kept in an open state through the support frame 42, so that the outer wall of the water-stop rubber skin 41 can be tightly fitted with the shaft 10 as much as possible, thereby improving the water-stopping effect. The cover 51 is driven to open or close by the driving assembly. When the cover 51 is opened, the deposited sand and gravel enter the sand discharge hole 50 of the sand discharge tube 5 through the sand collection hole 110, and then enter the back surface 12 of the movable dam 1. Sand discharge can be achieved without the movable dam 1 lying down, which saves the flow of water. In addition, since the outer wall of the U-shaped water-stop rubber skin 41 is tightly fitted with the outer wall of the shaft 10, sand and gravel can also be prevented from entering between the water-stop rubber skin 41 and the movable dam 1, thereby ensuring the normal rotation of the movable dam 1.
[0029] like Figures 7 to 10 As shown, the driving assembly of each sand discharge cylinder 5 includes a first hydraulic cylinder 52, a first connecting rod 53, a second connecting rod 54 and a third connecting rod 55. Each driving assembly has two first connecting rods 53, two third connecting rods 55 and one second connecting rod 54. The two first connecting rods 53 are symmetrically arranged relative to the first hydraulic cylinder 52, and a fourth connecting rod 56 is arranged between the two first connecting rods 53. The positions of the third connecting rod 55 and the fourth connecting rod 56 are aligned. The specific installation structure of the driving assembly: the first connecting rod 53 and the fourth connecting rod 56 are fixed to the outer wall of the sand discharge cylinder 5 by welding, and the cylinder end of the first hydraulic cylinder 52, the fourth connecting rod 56 and one end of the two first connecting rods 53 are hinged by the first pin 57. One end of the third connecting rod 55 is welded to the cover body 51, and the other end of the third connecting rod 55 is hinged to the other end of the first connecting rod 53 by the second pin 58. The telescopic end of the first hydraulic cylinder 52 is hinged to one end of the second connecting rod 54, and the other end of the second connecting rod 54 is welded and fixed to the cover body 51.
[0030] The first hydraulic cylinder 52, the first connecting rod 53, the second connecting rod 54 and the third connecting rod 55 form a quadrilateral mechanism. When the first hydraulic cylinder 52 retracts, it drives the second connecting rod 54 to rotate upward, and the second connecting rod 54 drives the cover body 51 to rotate toward the side away from the sand discharge tube 5. The third connecting rod 55 and the bottom of the first hydraulic cylinder 52 will also rotate relative to the first connecting rod 53, and the cover body 51 opens and disengages from the sand discharge tube 5. The sand collecting hole 110, the sand discharge hole 50 and the back water surface 12 of the movable dam 1 are connected to achieve sand discharge. When the first hydraulic cylinder 52 is extended, the cover body 51 rotates toward the side close to the sand discharge tube 5, and finally the cover body 51 is closed. In the process of the first hydraulic cylinder 52 driving the cover body 51, the fourth connecting rod 56 can play a supporting role. The symmetrical design of the first connecting rod 53 and the third connecting rod 55 can also improve the operating stability of the first hydraulic cylinder 52.
[0031] The channel steel used in the support frame 42 and the bracket 43 is groove steel. The upper and lower walls of the support frame 42 can firmly support the opening of the waterproof rubber skin 41. The upper wall of the bracket 43 and the lower wall of the support frame 42 can stably clamp the edge of the waterproof rubber skin 41. This installation method can reduce the probability of the waterproof rubber skin 41 being damaged, and when the waterproof rubber skin 41 ages, it is also very convenient to disassemble and replace. The hollow rubber hose can support the waterproof rubber skin 41 from the inner side of the waterproof rubber skin 41, which can increase the elasticity of the waterproof rubber skin 41, so that the outer wall of the waterproof rubber skin 41 can more effectively resist the outer wall of the rotating shaft 10, greatly improving the waterproof effect.
[0032] like Figures 1 to 5 As shown, the upper part of the movable dam 1 is hinged with an extension dam 2, and a second hydraulic cylinder 3 is installed between the extension dam 2 and the movable dam 1. The second hydraulic cylinder 3 drives the extension dam 2 to rotate relative to the movable dam 1 to realize the expansion or closing of the extension dam 2. When the extension dam 2 is expanded, the extension dam 2 extends toward the side away from the movable dam 1. When the extension dam 2 is closed, the extension dam 2 is folded on the back surface 12 of the movable dam 1. When the water storage depth needs to be increased, the second hydraulic cylinder 3 acts on the extension dam 2, and the extension dam 2 rotates relative to the movable dam 1 and then expands. The extension dam 2 extends upward along the rising direction of the movable dam 1, thereby increasing the water storage depth of the hydraulic dam. The expansion and closing are realized by rotating the extension dam 2, which changes the water storage depth of the hydraulic dam and avoids the hidden dangers caused by the sudden increase in precipitation.
[0033] like Figure 2 and 5As shown, the back surface 12 of the movable dam 1 is welded with a plurality of ribs 13, and the extension dam 2 is welded with a plurality of clamps 21, each of which has a clamp 21 on both sides, and the rib 13 is hinged with the clamps 21 on both sides thereof through short pins 24. The extension dam 2 is welded with a plurality of connecting plates 22, and the connecting plates 22 are connected with the clamps 21 through a first long pin 25. The telescopic end at the upper end of the second hydraulic cylinder 3 is hinged with the first long pin 25, and the cylinder end at the lower end of the second hydraulic cylinder 3 is hinged with a second long pin 26, and both ends of the second long pin 26 are fixedly connected to the rib 13. Therefore, the hinge between the clamp plate 21 and the rib plate 13, the retractable second hydraulic cylinder 3, the first long pin 25 and the second long pin 26 at both ends of the second hydraulic cylinder 3 form a connecting rod mechanism. When the extension dam 2 needs to rotate relative to the movable dam 1, the upper end of the second hydraulic cylinder 3 is retracted to drive the first long pin 25 to move, and the clamp plate 21 rotates relative to the rib plate 13, thereby realizing the rotation of the extension dam 2 relative to the movable dam 1, thereby completing the expansion or closing of the extension dam 2.
[0034] like Figure 3 As shown, in this embodiment, the extension dam 2 includes a front dam surface 201, a top dam surface 202 and a rear dam surface 203 which are bent and formed in sequence, and the top dam surface 202 is inclined. Side panels 23 are welded on both sides of the extension dam 2, and the side panels 23 are hinged to both sides of the movable dam 1 through short pins 24. The panel part of the extension dam 2 is formed by bending in one piece, and the front dam surface 201, the top dam surface 202 and the rear dam surface 203 are formed by bending in one piece. The clamping plate 21, the connecting plate 22, the side panel 23 and the panel part of the extension dam 2 are fixed by welding. The process is very simple and the production and processing are convenient. In order to facilitate installation and batch processing, the clamping plate 21 and the connecting plate 22 can adopt the same structure, as long as the installation space of the short pin 24 and the first long pin 25 is reserved. The short pin 24 of the articulated side panel 23 and the movable dam 1 is on the same installation axis as the short pin 24 of the articulated clamping plate 21 and the rib plate 13, ensuring the smooth rotation of the extension dam 2.
[0035] like Figure 4 As shown, the dam foundation 100 has a large receiving groove 103, which is mainly used to receive the base 101 and the hydraulic mechanism 102 that drives the movable dam 1. A step-shaped supporting platform 104 is set on one side of the receiving groove 103. When the movable dam 1 rotates relative to the base 101 to close, the extension dam 2 is folded on the back surface 12 of the movable dam 1, and the top of the movable dam 1 is placed on the supporting platform 104. When the movable dam 1 is not used or is transported after being manufactured, the extension dam 2 can be folded into the movable dam 1, and the movable dam 1 can be folded into the receiving groove 103. The top of the folded movable dam 1 and the extension dam 2 can be supported on the supporting platform 104, which is convenient for transportation and also conducive to protecting the hydraulic mechanism 102 of the movable dam 1 and the second hydraulic cylinder 3 of the extension dam 2.
[0036] The cover body 51, the extension dam 2, and the movable dam 1 of the present invention all use hydraulic cylinders as power elements to ensure the stable operation of the hydraulic dam. The sand discharge tube 5 and the water-stop assembly 4 are reasonably positioned. Through the cover body 51 that can be opened or closed, the deposited sand and gravel enter the sand discharge hole 50 of the sand discharge tube 5 through the sand collecting hole 110, and then enter the back water surface 12 of the movable dam 1. Sand discharge can be achieved without the movable dam 1 lying down, and because the outer wall of the U-shaped water-stop rubber skin 41 fits tightly with the rotating shaft 10, sand and gravel can also be prevented from entering between the water-stop rubber skin 41 and the movable dam 1. The U-shaped water-stop rubber skin 41 is installed through the support frame 42 and the bracket 43 of the channel steel structure, and a hollow rubber hose is assembled in the U-shaped water-stop rubber skin 41, so that the outer wall of the water-stop rubber skin 41 fits tightly with the rotating shaft 10, which can prevent debris from affecting the rotation of the movable dam 1 and effectively achieve water stopping at the bottom of the movable dam 1. The water-stop rubber skin 41 is convenient for later maintenance and disassembly. The combined structure of the extendable dam 2 and the movable dam 1 is ingenious. Through the extendable or closed extendable dam 2, the overall height of the hydraulic dam is changed, the water storage depth of the hydraulic dam is increased, and hidden dangers caused by emergencies are avoided.
[0037] The above are only some embodiments of the present invention. It should be pointed out that for ordinary technicians in this field, other modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.
Claims
1. A hydraulic dam with a sand discharge structure, comprising a dam foundation (100) and a movable dam (1), wherein the dam foundation (100) is fixed with a base (101), a rotating shaft (10) is provided at the bottom of the movable dam (1), the rotating shaft (10) is rotatably connected to the base (101), a hydraulic mechanism (102) is installed on the base (101), the hydraulic mechanism (102) is hingedly connected to the rotating shaft (10) and the movable dam (1), so that the rotating shaft (10) drives the movable dam (1) to rotate, and the characteristics are: The dam foundation (100) is provided with a water-stop component (4), the water-stop component (4) being located on the water-facing surface (11) side of the movable dam (1), the water-stop component (4) comprising a water-stop rubber skin (41), a support frame (42) and a bracket (43), the water-stop rubber skin (41) being U-shaped, the support frame (42) being installed at the opening of the U-shaped water-stop rubber skin (41), the bracket (43) being located at the bottom of the water-stop rubber skin (41), and the bracket (43) being fixedly connected to the water-stop rubber skin (41) and the support frame (42), and the bracket (43) being fixed to the dam foundation (100). 100), the waterproof rubber skin (41) is in contact with the outer wall of the rotating shaft (10), the back surface (12) of the movable dam (1) is provided with a sand discharge tube (5), the sand discharge tube has a sand discharge hole (50), the movable dam (1) is provided with a sand collection hole (110) connected to the sand discharge hole (50), the position of the sand collection hole (110) is higher than the position of the waterproof component (4), the end of the sand discharge tube (5) away from the sand collection hole (110) is provided with a cover body (51), and a driving component is provided between the cover body (51) and the sand discharge tube (5) to drive the cover body (51) to open or close; The upper part of the movable dam (1) is hingedly connected to an extension dam (2); a second hydraulic cylinder (3) is provided between the extension dam (2) and the movable dam (1); the second hydraulic cylinder (3) drives the extension dam (2) to rotate relative to the movable dam (1) to achieve the expansion or closure of the extension dam (2); when the extension dam (2) is expanded, the extension dam (2) extends toward a side away from the movable dam (1); when the extension dam (2) is closed, the extension dam (2) is folded onto the back water surface (12) of the movable dam (1); The back surface (12) of the movable dam (1) is provided with a plurality of ribs (13), the extension dam (2) is provided with a plurality of clamps (21), the clamps (21) are located on both sides of the ribs (13) and are hinged via short pins (24), the extension dam (2) is provided with a connecting plate (22), the connecting plate (22) and the clamps (21) are connected via a first long pin (25), the upper end of the second hydraulic cylinder (3) is hinged to the first long pin (25), the lower end of the second hydraulic cylinder (3) is hinged to a second long pin (26), and the second long pin (26) is connected to the ribs (13).
2. The hydraulic dam with a sand discharge structure according to claim 1, characterized in that: The driving assembly comprises a first hydraulic cylinder (52), a first connecting rod (53), a second connecting rod (54) and a third connecting rod (55); the first connecting rod (53) is fixed to the outer wall of the sand discharge barrel (5); two ends of the third connecting rod (55) are respectively hinged to the cover body (51) and one end of the first connecting rod (53); two ends of the first hydraulic cylinder (52) are respectively hinged to the first connecting rod (53) and the second connecting rod (54); the other end of the second connecting rod (54) is connected to the cover body (51).
3. The hydraulic dam with a sand discharge structure according to claim 2, characterized in that: The cover body (51) is provided with two first connecting rods (53), two third connecting rods (55), and a second connecting rod (54); the two first connecting rods (53) are symmetrically arranged relative to the first hydraulic cylinder (52); a fourth connecting rod (56) is arranged between the two first connecting rods (53); the first hydraulic cylinder (52), the fourth connecting rod (56), and the two first connecting rods (53) are hingedly connected by a first pin (57); the two first connecting rods (53) are respectively hingedly connected to the two third connecting rods (55) by a second pin (58); and the third connecting rod (55) is aligned with the fourth connecting rod (56).
4. The hydraulic dam with a sand discharge structure according to claim 3, characterized in that: The support frame (42) and the waterproof rubber skin (41) are assembled to form a gap (40), and a hollow rubber hose (44) is arranged in the gap (40).
5. The hydraulic dam with a sand discharge structure according to claim 4, characterized in that: The support frame (42) and the bracket (43) are both made of channel steel.
6. The hydraulic dam with a sand discharge structure according to claim 1, characterized in that: The dam foundation (100) is provided with a receiving groove (103), and a supporting platform (104) is provided on one side of the receiving groove (103); when the movable dam (1) is rotated relative to the base (101) to be closed, the extension dam (2) is folded on the back surface of the movable dam (1), and the top end of the movable dam (1) is placed on the supporting platform (104).