A high-efficiency water-stopping movable hydraulic dam

Abstract

The present invention discloses an efficient water-stopping movable hydraulic dam, comprising a base, a dam body movably mounted on the base via a hinge, and a hydraulic mechanism for driving the dam body to rotate. The dam body hinge is wrapped with an elastic sleeve, the top edge of the elastic sleeve is sealed with the dam body, and the bottom edge of the elastic sleeve is sealed with the base. Both end faces of the dam body are provided with mounting grooves, and rubber strips are movably arranged in the mounting grooves. Several support rods are connected to the inner side of the rubber strips, and springs are sleeved on the support rods for pushing the support rods and the rubber strips toward the outside of the mounting grooves, so that the rubber strips are tightly fitted to the objects on both sides of the dam body, achieving water-stopping in the gaps between the end faces of the dam body and the objects on both sides. The hydraulic dam can seal the hinges through the elastic sleeves and tightly fit the rubber strips to the objects on both sides of the dam body, thereby improving the overall water-stopping effect. Moreover, as the amount of water intercepted by the dam body increases, the tightness of the rubber strips fitting the objects on both sides can be automatically increased, thereby avoiding water seepage in the gaps due to increased water pressure.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic dams, and in particular to a high-efficiency water-stopping movable hydraulic dam. Background Art

[0002] A hydraulic dam is a type of dam with many advantages. It uses a row of hydraulic cylinders to support the rotatable dam surface to achieve the purpose of water retention and dam lowering for flood control. It is generally used in small and medium-sized rivers or reservoirs. Compared with traditional dams, it has low construction costs, a reliable dam structure with a long service life, a strong flood discharge capacity, and a high degree of automation.

[0003] Because hydraulic dams are movable, their water-stopping properties are poor, and leaks often occur at locations such as the dam's end faces and the hinged connections at the bottom. This is especially true between the dam's end faces and the objects on either side (such as river bank retaining walls). Because there's no fixed connection, and the objects are typically concrete structures with a less-than-smooth surface, a gap remains between them to prevent the dam's rotation from becoming obstructed. This gap can lead to water leaks. Summary of the Invention

[0004] The object of the present invention is to provide a high-efficiency water-stopping movable hydraulic dam, which solves the problem of poor water-stopping performance of existing hydraulic dams.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A high-efficiency water-stopping movable hydraulic dam includes a base, a dam body movably mounted on the base via a hinge, and a hydraulic mechanism for driving the dam body to rotate. The upstream side of the hinge of the dam body is wrapped with an elastic sleeve, the top edge of the elastic sleeve is sealed with the dam body, and the bottom edge of the elastic sleeve is sealed with the base. Both end faces of the dam body are provided with mounting grooves, and rubber strips are movably arranged in the mounting grooves. The inner side of the rubber strips is connected to a plurality of support rods, and springs are sleeved on the support rods for pushing the support rods and the rubber strips toward the outside of the mounting grooves, so that the rubber strips are closely fitted to the objects on both sides of the dam body, thereby achieving water-stopping in the gaps between the end faces of the dam body and the objects on both sides.

[0007] A further improvement is that the installation groove and the rubber strip extend from the bottom of the dam body end surface to the top of the dam body end surface.

[0008] A further improvement is that a water pressure plate is movably installed on the upstream side of the dam body through a number of guide rods, a gap is left between the water pressure plate and the dam body, and the edges of the water pressure plate are flexibly sealed with the dam body through rubber rings, a transmission rod is provided on the inner side of the water pressure plate, and a gear is provided inside the dam body, the gear is meshed with the transmission rod and one of the support rods, and the water pressure plate pushes the transmission rod inward under the action of water pressure, the transmission rod drives the gear to rotate, and the gear pushes the support rod and the rubber strip outward, so that the tightness of the rubber strip against the objects on both sides of the dam body increases with the increase of water pressure.

[0009] A further improvement is that a groove for the movement of the guide rod and the transmission rod is opened on the dam body.

[0010] A further improvement is that the hydraulic mechanism includes a hydraulic cylinder and a first connecting arm and a second connecting arm hinged to each other, the first connecting arm is hinged to the dam body, the second connecting arm is hinged to the base, the bottom end of the hydraulic cylinder is hinged to the base, and the top end of the hydraulic cylinder is hinged to the middle position of the first connecting arm.

[0011] A further improvement is that the first connecting arm is hinged to the downstream side of the dam body through a rotating shaft, and a driving disc is connected to one end of the rotating shaft, a plurality of protrusions are evenly distributed on the driving disc along the circumferential direction, and a driving cylinder is provided at the end of the support rod meshing with the gear, and the driving cylinder is provided with a center hole and a plurality of column holes distributed along the circumferential direction on the cylinder wall facing the end of the rotating shaft, the driving disc is movably extended into the driving cylinder through the center hole and maintains a gap with the cylinder wall of the driving cylinder facing the end of the rotating shaft, and the protrusions are extended into the column holes one by one and maintain a gap with the hole wall of the column holes;

[0012] When the hydraulic mechanism extends and retracts to drive the dam body to rotate, the rotating shaft rotates and drives the driving disk to rotate synchronously. The boss on the driving disk slides out of the column hole and squeezes the driving cylinder to move a certain distance. The driving cylinder pulls the support rod and the rubber strip into the installation groove for a certain distance, so that the rubber strip is separated from the objects on both sides of the dam body.

[0013] A further improvement is that the protrusions and the column holes are both truncated cone-shaped, and the number of each is three or six.

[0014] The beneficial effects of the present invention are as follows: the hydraulic dam can seal the hinges through the elastic sleeve, and the rubber strips can fit tightly with the objects on both sides of the dam body, thereby improving the overall water-stopping effect; and as the amount of water intercepted by the dam body increases, the tightness of the fit between the rubber strips and the objects on both sides can be automatically increased, thereby avoiding the phenomenon of water seepage through gaps due to increased water pressure; in addition, during the rotation of the dam body, the rubber strips can be automatically retracted and separated from the objects on both sides, thereby reducing the rotational resistance and avoiding excessive wear on the rubber strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the hydraulic dam;

[0016] Figure 2 This is a schematic diagram of the end structure of the hydraulic dam;

[0017] Figure 3 This is a structural diagram of the upstream side of the dam;

[0018] Figure 4 This is a structural diagram of the hydraulic plate driving the rubber strip to fit the objects on both sides;

[0019] Figure 5 This is a schematic diagram of the structure in which the driving mechanism extends and retracts to drive the rubber strip away from the objects on both sides;

[0020] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0021] Figure 7 It is a structural diagram of the driving mechanism;

[0022] Figure 8 Schematic diagram of a drive disc with different numbers of bosses;

[0023] In the figure: 1. Base; 2. Dam body; 3. Hydraulic mechanism; 301. Hydraulic cylinder; 302. First connecting arm; 303. Second connecting arm; 4. Elastic sleeve; 5. Mounting groove; 6. Rubber strip; 7. Support rod; 8. Spring; 9. Guide rod; 10. Water pressure plate; 11. Rubber ring; 12. Transmission rod; 13. Gear; 14. Rotating shaft; 15. Drive disc; 16. Boss; 17. Drive cylinder; 18. Center hole; 19. Column hole. DETAILED DESCRIPTION

[0024] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0025] Example 1

[0026] Combine Figure 1-4As shown, a high-efficiency water-stopping movable hydraulic dam includes a base 1, a dam body 2 movably mounted on the base 1 through a hinge, and a hydraulic mechanism 3 for driving the dam body 2 to rotate. The upstream side of the hinge of the dam body 2 is wrapped with an elastic sleeve 4, the top edge of the elastic sleeve 4 is sealed with the dam body 2, and the bottom edge of the elastic sleeve 4 is sealed with the base 1. The elastic sleeve 4 can elastically expand and contract as the dam body 2 rotates, always ensuring the sealing and water-stopping effect at the hinge; both end faces of the dam body 2 are provided with mounting grooves 5, and rubber strips 6 are movably arranged in the mounting grooves 5. Several support rods 7 are connected to the inner side of the rubber strips 6, and springs 8 are provided on the support rods 7 to push the support rods 7 and the rubber strips 6 toward the outside of the mounting grooves 5, so that the rubber strips 6 are closely fitted to the objects on both sides of the dam body 2, thereby achieving water-stopping in the gaps between the end faces of the dam body 2 and the objects on both sides.

[0027] In this embodiment, the mounting groove 5 and the rubber strip 6 extend from the bottom of the end surface of the dam body 2 to the top of the end surface of the dam body 2 , so that the rubber strip 6 can seal the entire end surface of the dam body 2 .

[0028] In this embodiment, a water pressure plate 10 is movably installed on the upstream side of the dam body 2 through a plurality of guide rods 9. A gap is left between the water pressure plate 10 and the dam body 2, and the edges of the water pressure plate 10 are flexibly sealed with the dam body 2 through rubber rings 11. In this way, the water intercepted by the dam body 2 will generate a water pressure force on the water pressure plate 10, driving the water pressure plate 10 toward the dam body 2. A transmission rod 12 is provided on the inner side of the water pressure plate 10, and a gear 13 is provided inside the dam body 2. The gear 13 is meshed with the transmission rod 12 and one of the support rods 7. Under the action of water pressure, the water pressure plate 10 pushes the transmission rod 12 inward, and the transmission rod 12 drives the gear 13 to rotate. The gear 13 pushes the support rod 7 and the rubber strip 6 outward, so that the tightness of the rubber strip 6 against the objects on both sides of the dam body 2 increases with the increase of water pressure. Because when the amount of water in the water body increases, the water pressure on the rubber strip 6 becomes greater and greater, and water leakage is likely to occur at the gap. Under the design of this embodiment, the increase in water volume causes the area of ​​the water body immersed in the water pressure plate 10 to increase accordingly, and the force acting on the water pressure plate 10 also increases accordingly, thereby promoting the rubber strip 6 to adhere to the objects on both sides of the dam body 2 more tightly, thereby avoiding water leakage.

[0029] Preferably, a groove for the movement of the guide rod 9 and the transmission rod 12 is provided on the dam body 2, thereby improving the stability of the movement of the guide rod 9 and the transmission rod 12.

[0030] Example 2

[0031] Recombination Figure 4-8As shown, a high-efficiency water-stopping movable hydraulic dam is further provided based on the structure of Example 1: the hydraulic mechanism 3 includes a hydraulic cylinder 301 and a first connecting arm 302 and a second connecting arm 303 that are hinged to each other. The first connecting arm 302 is hinged to the dam body 2, the second connecting arm 303 is hinged to the base 1, the bottom end of the hydraulic cylinder 301 is hinged to the base 1, and the top end of the hydraulic cylinder 301 is hinged to the middle position of the first connecting arm 302. The extension and retraction of the hydraulic cylinder 301 will change the angle between the first connecting arm 302 and the second connecting arm 303 and the overall support height, thereby achieving the rotation of the dam body 2. In addition, during the rotation of the dam body 2, the angle between the first connecting arm 302 and the dam body 2 and the angle between the second connecting arm 303 and the base 1 will also change adaptively.

[0032] In addition, the first connecting arm 302 is hinged to the downstream side of the dam body 2 through the rotating shaft 14, and a drive disc 15 is connected to one end of the rotating shaft 14. The drive disc 15 has a plurality of bosses 16 evenly distributed along the circumferential direction. The end of the support rod 7 engaged with the gear 13 is provided with a drive cylinder 17. The drive cylinder 17 has a center hole 18 and a plurality of column holes 19 distributed along the circumferential direction on the cylinder wall facing the end of the rotating shaft 14. The drive disc 15 movably extends into the drive cylinder 17 through the center hole 18 and maintains a gap with the cylinder wall of the drive cylinder 17 facing the rotating shaft 14. The bosses 16 extend into the column holes 19 one by one and maintain a gap with the hole walls of the column holes 19.

[0033] When the hydraulic mechanism 3 is extended and retracted to drive the dam body 2 to rotate, the rotating shaft 14 rotates and drives the driving disk 15 to rotate synchronously. The boss 16 on the driving disk 15 slides out of the column hole 19 and squeezes the driving cylinder 17 to move a certain distance. The driving cylinder 17 pulls the support rod 7 and the rubber strip 6 into the installation groove 5 for a certain distance, so that the rubber strip 6 is separated from the objects on both sides of the dam body 2.

[0034] In this embodiment, the dam body 2 can be driven to rotate in multiple different states by controlling the extension and contraction of the hydraulic mechanism 3, thereby achieving the regulation of water storage or flood discharge. During the process of the hydraulic mechanism 3 extending and contracting to drive the dam body 2 to rotate, the rotating shaft 14 rotates and drives the drive disc 15 to rotate synchronously. The boss 16 on the drive disc 15 slides out of the column hole 19 and squeezes the drive cylinder 17 to move a certain distance. The drive cylinder 17 pulls the support rod 7 and the rubber strip 6 into the installation groove 5 for a certain distance, so that the rubber strip 6 is separated from the objects on both sides of the dam body 2. This can reduce the rotation resistance of the dam body 2 and avoid excessive wear on the rubber strip 6. After the dam body 2 rotates to the specified state, the boss 16 on the drive disc 15 will slide back into the column hole 19, so that the drive cylinder 17 and the support rod 7 move out of the installation groove 5 under the drive of the spring 8 and the water pressure plate 10, so that the rubber strip 6 is again in contact with the objects on both sides of the dam body 2. The purpose of maintaining a gap between the drive disc 15 and the wall of the drive cylinder 17, and between the boss 16 and the wall of the column hole 19, is that after the rubber strip 6 is in contact with the objects on both sides of the dam body 2, the water pressure plate 10 can still move toward the dam body 2 when the water pressure increases, and drive the drive cylinder 17, the support rod 7, and the rubber strip 6 to move outward, thereby increasing the tightness of the contact.

[0035] In this embodiment, the boss 16 and the column hole 19 are both truncated cone-shaped to facilitate relative sliding. The number of bosses 16 and column holes 19 is three or six, and this number corresponds to the expansion and contraction of the hydraulic mechanism 3. For example, if it is only necessary to control the dam body 2 to be fully laid down or fully raised, it is necessary to control the expansion and contraction of the hydraulic mechanism 3 so that the dam body 2 can switch between the two states. If the rotation angle range of the rotation shaft 14 each time is 120° (determined by the structure and measured in advance), then only three bosses 16 and column holes 19 need to be provided, that is, Figure 8 In the right side structure, the three bosses 16 and the post holes 19 slide in or out synchronously, and all slide out during the rotation switching state, and all slide in after the rotation switching is completed. If it is necessary to add a semi-falling state to the dam body 2, the rotation angle range of the rotation shaft 14 is 60 degrees each time, then six bosses 16 and post holes 19 need to be provided, that is, Figure 8 The left side structure in the middle can slide out and in synchronously during and after each rotation and switching process.

[0036] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A high-efficiency water-stopping movable hydraulic dam, comprising a base (1), a dam body (2) movably mounted on the base (1) via a hinge, and a hydraulic mechanism (3) for driving the dam body (2) to rotate, characterized in that: The upstream side of the hinge of the dam body (2) is wrapped with an elastic sleeve (4), the top edge of the elastic sleeve (4) is sealed with the dam body (2), and the bottom edge of the elastic sleeve (4) is sealed with the base (1). The end faces of both ends of the dam body (2) are provided with mounting grooves (5), and a rubber strip (6) is movably arranged in the mounting groove (5). The inner side of the rubber strip (6) is connected to a plurality of support rods (7), and a spring (8) is sleeved on the support rod (7) for pushing the support rod (7) and the rubber strip (6) to move toward the outside of the mounting groove (5), so that the rubber strip (6) is closely attached to the objects on both sides of the dam body (2), thereby achieving water stopping at the gap between the end face of the dam body (2) and the objects on both sides; A water pressure plate (10) is movably mounted on the upstream side of the dam body (2) via a plurality of guide rods (9). A gap is left between the water pressure plate (10) and the dam body (2), and the edges of the water pressure plate (10) are flexibly sealed and connected to the dam body (2) via rubber rings (11). A transmission rod (12) is provided on the inner side of the water pressure plate (10), and a gear (13) is provided inside the dam body (2). The gear (13) is meshed and connected with the transmission rod (12) and one of the support rods (7). Under the action of water pressure, the water pressure plate (10) pushes the transmission rod (12) to move inward, and the transmission rod (12) drives the gear (13) to rotate. The gear (13) pushes the support rod (7) and the rubber strip (6) to move outward, so that the degree of tightness with which the rubber strip (6) fits the objects on both sides of the dam body (2) increases as the water pressure increases.

2. The high-efficiency water-stopping movable hydraulic dam according to claim 1, characterized in that: The installation groove (5) and the rubber strip (6) extend from the bottom of the end surface of the dam body (2) to the top of the end surface of the dam body (2).

3. The high-efficiency water-stopping movable hydraulic dam according to claim 1, characterized in that: The dam body (2) is provided with a groove for the movement of the guide rod (9) and the transmission rod (12).

4. The high-efficiency water-stopping movable hydraulic dam according to claim 1, characterized in that: The hydraulic mechanism (3) comprises a hydraulic cylinder (301) and a first connecting arm (302) and a second connecting arm (303) that are hinged to each other, wherein the first connecting arm (302) is hinged to the dam body (2), and the second connecting arm (303) is hinged to the base (1). The bottom end of the hydraulic cylinder (301) is hinged to the base (1), and the top end of the hydraulic cylinder (301) is hinged to the middle position of the first connecting arm (302).

5. The high-efficiency water-stopping movable hydraulic dam according to claim 4, characterized in that: The first connecting arm (302) is hinged to the downstream side of the dam body (2) through the rotating shaft (14), and a driving disc (15) is connected to one end of the rotating shaft (14), and a plurality of convex columns (16) are evenly distributed on the driving disc (15) along the circumferential direction. The end of the support rod (7) meshing with the gear (13) is provided with a driving cylinder (17), and the driving cylinder (17) is provided with a center hole (18) and a plurality of column holes (19) distributed along the circumferential direction on the cylinder wall facing the end of the rotating shaft (14). The driving disc (15) is movably extended into the driving cylinder (17) through the center hole (18) and maintains a gap with the cylinder wall of the driving cylinder (17) facing the end of the rotating shaft (14). The convex columns (16) are extended into the column holes (19) one by one and maintain a gap with the hole wall of the column hole (19); When the hydraulic mechanism (3) is extended and retracted to drive the dam body (2) to rotate, the rotating shaft (14) rotates and drives the driving disc (15) to rotate synchronously, the boss (16) on the driving disc (15) slides out of the column hole (19) and squeezes the driving cylinder (17) to move a certain distance, and the driving cylinder (17) pulls the support rod (7) and the rubber strip (6) to move a certain distance into the installation groove (5), so that the rubber strip (6) is separated from the objects on both sides of the dam body (2).

6. The high-efficiency water-stopping movable hydraulic dam according to claim 5, characterized in that: The protruding columns (16) and the column holes (19) are both truncated cone-shaped, and are three or six in number.

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