An inverted triangle supported mechanical self-locking water retaining dam

Abstract

The present invention relates to an inverted triangular support mechanical self-locking water retaining dam, comprising a dam hinge support and a dam body hinged to the upper end of the dam hinge support. The dam body and the ground are supported by a folding support structure, which is driven by a hydraulic cylinder. The folding support structure comprises a tie rod base fixed to the ground, a lower tie rod hinged to the upper end of the tie rod base, and an upper connecting rod hinged between the lower tie rod and the dam body. The water retaining dam is provided with an inverted triangular self-locking support structure. The self-locking structure eliminates the need for the oil cylinder to be subjected to stress for a long time, reducing the cost of the oil circuit system and the control system. The inverted triangular support method saves installation space. Furthermore, by covering the back water surface of the dam body with a protective plate, the hydraulic cylinder and the folding support structure are protected, greatly improving the service life of components such as the oil cylinder.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic dams, and in particular relates to an inverted triangular supported mechanical self-locking water retaining dam. Background Art

[0002] A hydraulic dam refers to a hydraulic concrete lifting dam, which is a relatively simple movable dam technology in water conservancy technology. It is widely used in agricultural irrigation, fisheries, ship locks, seawater tidal barriers, urban river landscape projects and small hydropower stations. The hydraulic lifting dam is a movable dam that uses the mechanical principles of dump trucks and combines the hydraulic structure of pier dams. It has the dual functions of water retaining and water discharge.

[0003] Most existing hydraulic dams are directly supported by hydraulic cylinders, or similar to the principle of dump trucks, with auxiliary support through hydraulic cylinders and mechanical rods. This support method requires the hydraulic cylinders to maintain continuous pressure, which is not conducive to long-term use under outdoor conditions. There is also no protective structure for the hydraulic cylinder's oil system and control system, which greatly reduces the service life of the hydraulic dam. Summary of the Invention

[0004] The purpose of the present invention is to provide an inverted triangle supported mechanical self-locking water retaining dam in order to solve the above problems.

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

[0006] A mechanical self-locking water retaining dam with an inverted triangle support includes a dam hinge support and a dam body hinged to the upper end of the dam hinge support. The dam body and the ground are supported by a folding support structure, and the folding support structure is driven by a hydraulic cylinder. The folding support structure includes a pull rod base fixed to the ground, a lower pull rod hinged to the upper end of the pull rod base, and an upper connecting rod hinged between the lower pull rod and the dam body. The upper connecting rod is shaped like an obtuse triangle, and the obtuse angle of the upper connecting rod is inclined downward. The cylinder arm of the hydraulic cylinder is hinged to the obtuse angle of the upper connecting rod. A limiting structure is provided at the hinge between the upper connecting rod and the lower connecting rod for limiting the upper connecting rod and the lower connecting rod from continuing to fold downward after being flattened. The limiting structure includes a self-locking block fixed to the end of the upper connecting rod, and an angle edge provided at the end of the lower connecting rod and matching the self-locking block.

[0007] As a further optimization scheme of the present invention, the dam hinge support includes a chassis fixed to the ground, wherein the chassis is fixed to the ground by casting or bolts, and the top of the dam hinge support is provided with a long axis for hingedly connecting the dam body. The dam hinge support is used to be fixed to the ground, and the dam body is raised or lowered by the long axis, so as to facilitate the function of blocking or discharging water.

[0008] As a further optimization solution of the present invention, the dam body is in an arc shape, the convex surface is used to retain water, and the concave surface is provided with mutually staggered reinforcing ribs and beams for increasing the mechanical properties of the dam body.

[0009] As a further optimization solution of the present invention, the side of the dam body is provided with a docking edge for docking with an adjacent water retaining dam.

[0010] As a further optimization solution of the present invention, the butt joint edge is a long strip with a rubber pad on the surface. This arrangement is used to increase the waterproof performance of the contact position of adjacent water retaining dams.

[0011] As a further optimization scheme of the present invention, a foldable protective plate is also provided on the back water surface of the dam body, and the protective plate includes a hinge base fixed to the ground, a lower hinge plate arranged at the upper end of the hinge base, and an upper hinge plate hinged between the top end of the lower hinge plate and the dam body. The hinge plate is used to cover the structure behind the dam body, which can effectively prevent debris from contacting components such as the hydraulic cylinder.

[0012] As a further optimization scheme of the present invention, a limit piece is provided at the hinge of the upper hinge plate and the lower hinge plate to prevent the upper hinge plate and the lower hinge plate from folding toward the dam body. When the dam body descends, the hinge plate folds outward accordingly.

[0013] The beneficial effects of the present invention are:

[0014] The present invention is provided with an inverted triangular self-locking support structure. The self-locking structure makes it unnecessary for the oil cylinder to be subjected to force for a long time, thereby reducing the cost of the oil circuit system and the control system. The inverted triangular support method saves installation space, and then the back water surface of the dam body is covered by the protective plate, so that the hydraulic cylinder and the folding support structure are protected, thereby greatly improving the service life of components such as the oil cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 It is a side schematic view of the present invention;

[0017] Figure 3 is a side view of the present invention after folding;

[0018] Figure 4 This invention Figure 2 A magnified view of the structure of part A;

[0019] In the figure: 11. Dam hinge support; 12. Long axis; 13. Dam body; 14. Butt edge; 15. Crossbeam; 16. Reinforcement rib; 21. Upper connecting rod; 22. Lower tie rod; 23. Tie rod base; 24. Corner edge; 25. Self-locking block; 31. Cylinder base; 32. Hydraulic cylinder; 33. Cylinder arm; 41. Lower hinge plate; 42. Upper hinge plate; 43. Hinge base. DETAILED DESCRIPTION

[0020] 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.

[0021] Example 1

[0022] like Figure 1-4 As shown, an inverted triangular supported mechanical self-locking water retaining dam includes a dam hinge support 11 and a dam body 13 hinged to the upper end of the dam hinge support 11. The dam hinge support 11 includes a chassis fixed to the ground, wherein the chassis is fixed to the ground by casting or bolts, and a long axis 12 for hingedly connecting the dam body 13 is provided at the top of the dam hinge support 11.

[0023] It should be noted that the retaining dam needs to be based on a concrete floor when in use, and multiple retaining dams are used in combination, with the sides of adjacent retaining dams in contact with each other. The gaps at the bottom of the dam body 13 can be sealed with sandbags, or they can be sealed in a stepped manner according to the terrain, or a low-height dam hinge support 11 can be used to make the height of the long axis 12 close to the ground.

[0024] In order to increase the mechanical properties of the dam body 13 and prevent its deformation from causing water leakage, the dam body 13 is in an arc shape, with the convex surface being used to block water and the concave surface being provided with mutually staggered reinforcing ribs 16 and cross beams 15.

[0025] In order to improve the waterproof performance of the adjacent sides of the dam body 13, the sides of the dam body 13 are provided with butt joint edges 14, which are long strips with rubber pads on the surface.

[0026] The dam body 13 and the ground are supported by a folding support structure, which is driven by a hydraulic cylinder 32. The hydraulic cylinder 32 is fixed to the ground near the dam hinge support 11 through a cylinder base 31. The folding support structure folds in the direction away from the dam body 13. The folding support structure includes a pull rod base 23 fixed to the ground, a lower pull rod 22 hinged at the upper end of the pull rod base 23, and an upper connecting rod 21 hinged between the lower pull rod 22 and the dam body 13. The upper connecting rod 21 is shaped like an obtuse triangle, and the obtuse angle of the upper connecting rod 21 is inclined downward toward the dam body 13. When the dam body 13 is raised, the hydraulic cylinder 32 pulls back the cylinder arm 33, so that the folded upper connecting rod 21 and the lower pull rod 22 become straight.

[0027] It should be noted that the hydraulic cylinder 32 only drives the upper connecting rod 21 and the lower pull rod 22 to fold or straighten, and does not support the dam body 13. The position of the hydraulic cylinder 32 needs to meet the following requirements: Figure 3 As shown, after folding, the hinge axis of the upper connecting rod 21 and the lower pull rod 22 must be located below the extension line of the cylinder arm 33. When the cylinder arm 33 retracts, it will drive the upper connecting rod 21 and the lower pull rod 22 to straighten. Figure 2 As shown, after unfolding, the hinge axis between the upper connecting rod 21 and the dam body 13 needs to be located at the left end of the extension line of the cylinder arm 33. Only when the cylinder arm 33 is extended will the upper connecting rod 21 and the lower pull rod 22 be folded.

[0028] In order to achieve self-locking of the upper connecting rod 21 and the lower pull rod 22, a limiting structure is provided at the hinge of the upper connecting rod 21 and the lower pull rod 22 for limiting the upper connecting rod 21 and the lower pull rod 22 from folding obliquely downward. The limiting structure includes a self-locking block 25 fixed to the end of the upper connecting rod 21, and an angle edge 24 matching the self-locking block 25 is provided at the end of the lower pull rod 22. The cylinder arm 33 of the hydraulic cylinder 32 is hinged at an obtuse angle to the upper connecting rod 21. The limiting structure is used to limit the upper connecting rod 21 and the lower pull rod 22 from folding toward the side close to the dam body 13, thereby enabling it to play a supporting role. It should be noted that Yes, the upper connecting rod 21 is shaped like an obtuse triangle, and the cylinder arm 33 is located at the obtuse angle of the obtuse triangle. Therefore, when the upper connecting rod 21 and the lower pull rod 22 form a straight line, the dam body 13 is subjected to force, so that the upper connecting rod 21 and the lower pull rod 22 have a tendency to rotate and fold at the hinge, and the component force of the cylinder arm 33 prevents the upper connecting rod 21 from rotating counterclockwise, that is, there is a tendency between the upper connecting rod 21 and the lower pull rod 22 to bend toward the dam body 13, and this tendency is locked by the self-locking block 25, so that the upper connecting rod 21 and the lower pull rod 22 are subjected to force to support the dam body 13.

[0029] Example 2

[0030] like Figure 2-3As shown, in order to further improve the protection performance of the hydraulic cylinder 32, a foldable protective plate is also provided on the back water surface of the dam body 13. Due to the inverted triangle design of the support structure, the angle between the folding support structure and the ground is larger, so space is left on the back water surface of the dam body 13 to install the protective plate. The protective plate includes a hinge base 43 fixed to the ground, a lower hinge plate 41 arranged at the upper end of the hinge base 43, and an upper hinge plate 42 hinged between the top of the lower hinge plate 41 and the dam body 13. A limiter is provided at the hinge between the upper hinge plate 42 and the lower hinge plate 41 to prevent the upper hinge plate 42 and the lower hinge plate 41 from folding in a direction close to the dam body 13. The inverted triangle self-locking support structure saves installation space, and then the back water surface of the dam body 13 is covered by the protective plate, so that the hydraulic cylinder 32 and the folding support structure are protected, thereby greatly improving the service life.

[0031] 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. An inverted triangular support mechanical self-locking water retaining dam, comprising a dam hinge support (11) and a dam body (13) hinged to the upper end of the dam hinge support (11), wherein the dam body (13) and the ground are supported by a folding support structure, and the folding support structure is driven by a hydraulic cylinder (32), and is characterized in that: The folding support structure includes a pull rod base (23) fixed to the ground, a lower pull rod (22) hinged at the upper end of the pull rod base (23), and an upper connecting rod (21) hinged between the lower pull rod (22) and the dam body (13), the upper connecting rod (21) is in the shape of an obtuse triangle, the obtuse angle of the upper connecting rod (21) is inclined downward, the cylinder arm (33) of the hydraulic cylinder (32) is hinged to the obtuse angle of the upper connecting rod (21), and a limiting structure is provided at the hinge between the upper connecting rod (21) and the lower pull rod (22) for limiting the upper connecting rod (21) and the lower pull rod (22) from continuing to fold downward after being flattened, and the limiting structure includes a self-locking block (25) fixed to the end of the upper connecting rod (21), and an angle edge (24) provided at the end of the lower pull rod (22) and matching the self-locking block (25); The dam hinge support (11) comprises a chassis fixed to the ground, wherein the chassis is fixed to the ground by casting or bolts, and a long axis (12) for hinged connection to the dam body (13) is provided at the top end of the dam hinge support (11); The back surface of the dam body (13) is also provided with a foldable protective plate, which includes a hinge base (43) fixed to the ground, a lower hinge plate (41) provided at the upper end of the hinge base (43), and an upper hinge plate (42) hinged between the top end of the lower hinge plate (41) and the dam body (13).

2. The inverted triangular support mechanical self-locking water retaining dam according to claim 1, characterized in that: The dam body (13) is in the shape of an arc surface, the convex surface is used for retaining water, and the concave surface is provided with mutually staggered reinforcing ribs (16) and cross beams (15).

3. The inverted triangular support mechanical self-locking water retaining dam according to claim 1, characterized in that: The side of the dam body (13) is provided with a butt joint edge (14).

4. The inverted triangular support mechanical self-locking water retaining dam according to claim 3, characterized in that: The butt joint edge (14) is a long strip with a rubber pad on the surface.

5. The inverted triangular support mechanical self-locking water retaining dam according to claim 1, characterized in that: A limiter is provided at the hinged joint between the upper hinge plate (42) and the lower hinge plate (41) to prevent the upper hinge plate (42) and the lower hinge plate (41) from folding in a direction close to the dam body (13).

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