Water retaining dam for water conservancy and hydropower engineering

Abstract

The utility model relates to the technical field of retaining dams, and discloses a retaining dam for water conservancy and hydropower engineering, which comprises a dam body, a flood discharge chamber arranged in the middle of the dam body, a water outlet arranged at the bottom of the downstream surface of the dam body, a water inlet arranged at the top of the upstream surface of the dam body, device chambers arranged in the middle of the water inlet, and a device chamber arranged at each water inlet. A flood discharge mechanism capable of adjusting the flood discharge amount is arranged in the device chamber, the gate plate can be prevented from rushing open water flow, single-time flood discharge of the dam can be regulated and controlled, and the situation that the one-time flood discharge amount is too large, and downward flow is affected is prevented. And the upstream face of the dam body is fixedly connected with the cleaning mechanism, garbage floating on the surface of the dam body can be cleaned, and the situation that a water inlet is blocked by the garbage, and flood discharge is affected is prevented. And the design of the anti-skid blocks on the front and back surfaces of the dam body is also convenient for workers to repair and maintain the surface of the dam body.

Description

Technical Field

[0001] The utility model relates to the technical field of water retaining dams, in particular to a water retaining dam used in water conservancy and hydropower projects. Background Art

[0002] The retaining dam is a world-leading movable dam technology used for agricultural irrigation, fisheries, ship locks, seawater tidal barriers, urban river landscapes, engineering, and hydropower stations. The hinged movable dam has a scientific mechanical structure, does not block water, is not afraid of silt accumulation, is not affected by floating objects, has a solid and reliable structure, and has strong flood resistance. It overcomes all the shortcomings of traditional movable dams and has all the advantages of traditional dams.

[0003] According to a water retaining dam for water conservancy and hydropower projects disclosed on the patent website (authorization announcement number: CN215948103U), it is described as "including a dam body, a water inlet is opened in the middle position of the dam body, and the water inlet is symmetrically opened with rotating holes along the center line, bearings are fixedly installed in the rotating holes, and a gate is provided between the rotating holes, and the gate is rotatably connected to the dam body through bearings, and limit blocks are fixedly installed on the left and right sides of the gate. There are multiple limit blocks, and limit grooves are opened between the multiple limit blocks. A gear group is provided in the upper end of the dam body, one end of the gear group is fixedly connected to the gate, and the other end of the gear group is fixedly connected to the motor. There are two motors, and the two motors are respectively arranged on both sides above the dam body. The utility model effectively improves the water blocking effect of the water retaining dam."

[0004] Based on the above content, the applicant believes that the following defects exist: when the device is discharging flood water, all the accumulated water will be released at once. Excessive water flow will cause excessive impact force, thereby causing floods downstream, and the closing method of the gate will cause the dam to burst due to excessive water pressure, which is not conducive to water storage. The vertically designed dam body is also not conducive to the repair and maintenance of the dam body surface. Utility Model Content

[0005] The purpose of the utility model is to provide a water retaining dam for water conservancy and hydropower engineering to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water retaining dam for water conservancy and hydropower engineering, comprising a dam body, a plurality of drainage ports are provided at the bottom of the back surface of the dam body, a plurality of water inlets are provided at intervals at the top of the front surface of the dam body, and a flood discharge chamber connecting the drainage ports and the water inlets is provided in the middle of the dam body;

[0007] A device room is provided at each water inlet, and a flood discharge mechanism with adjustable flood discharge volume is provided inside the device room; the flood after flood discharge enters the flood discharge room and is discharged from the dam body through the drainage port.

[0008] Furthermore, the flood discharge mechanism includes a gate plate, one side of which is slidably connected to the interior of the device room and the other side is fixedly connected to a threaded seat; a motor is provided on the top of the dam body, the output end of the motor is connected to the top of the threaded pipe, and the bottom of the threaded pipe extends downward into the device room and is threadedly connected to the threaded seat.

[0009] Furthermore, guide cylinders fixed on the gate plate are symmetrically arranged on the left and right sides of the threaded seat, and guide rods are slidably connected in the guide cylinders, and the top and bottom ends of the guide rods are fixed to the device chamber.

[0010] Furthermore, a protective seat is provided on the outside of the motor.

[0011] Furthermore, a plurality of anti-sliding blocks are fixedly connected to the water-facing surface and the water-retaining surface of the dam body.

[0012] Furthermore, a cleaning mechanism is fixedly connected to the water-facing surface of the dam body; the cleaning mechanism includes slide rails, which are fixedly connected to the left and right sides of the water-facing surface of the dam body, a salvage net is slidably connected between the slide rails, and steel cables are fixedly connected to the left and right sides of the top of the salvage net.

[0013] Furthermore, slide blocks corresponding to the slide rails are provided at the left and right ends of the salvage net.

[0014] Furthermore, the top of the steel cable is driven by a crane.

[0015] Furthermore, guardrails are fixedly connected to the front and rear sides of the top of the dam body.

[0016] Compared with the prior art, the present invention provides a method having the following beneficial effects:

[0017] 1. Compared with the existing technology, the italic design of the dam body has stronger pressure resistance, and the anti-sliding block design on the front and back sides of the dam body also makes it easier for staff to repair and maintain the surface of the dam body. The up and down opening and closing design of the gate plate can prevent the gate plate from being opened by the water flow, and multiple flood discharge mechanisms can regulate the single flood discharge of the dam to prevent excessive one-time flood discharge from affecting the downstream.

[0018] 2. Compared with the existing technology, the design of the drainage outlet of this device is lower than the water inlet, which can reduce the impact force of the water flow during flood discharge and reduce the water flow rate. A cleaning mechanism is added to the water-facing surface of the dam body to clean up the garbage floating on the surface of the dam body and prevent the garbage from blocking the water inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0020] Figure 1 It is a schematic diagram of the front view of the structure of the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the enlarged side cross-sectional view of the structure at the middle dam body;

[0022] Figure 3 for Figure 1 A schematic diagram of the enlarged structural side view of the middle flood discharge mechanism;

[0023] Figure 4 for Figure 1 Schematic diagram of the enlarged front view of the structure at the cleaning mechanism in the middle.

[0024] In the figure: 1. dam body; 2. flood discharge chamber; 3. drainage outlet; 4. water inlet; 5. device room; 6. anti-sliding block; 7. guardrail; 8. flood discharge mechanism; 81. gate plate; 82. threaded seat; 83. guide rod; 84. threaded pipe; 85. motor; 86. guard seat; 9. cleaning mechanism; 91. slide rail; 92. salvage net; 93. steel cable. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model provides the following technical solutions:

[0028] Example

[0029] See also Figure 1-4 A water retaining dam for water conservancy and hydropower engineering, comprising a dam body 1, a plurality of drainage ports 3 are provided at the bottom of the back surface of the dam body 1, a plurality of water inlets 4 are provided at intervals at the top of the front surface of the dam body 1, and a flood discharge chamber 2 is provided inside the dam body 1 to connect the drainage ports 3 and the water inlets 4;

[0030] A device chamber 5 is provided at each water inlet 4, and a concrete isolation wall is built between the device chambers 5; a flood discharge mechanism 8 with adjustable flood discharge volume is provided inside the device chamber; the flood after flood discharge enters the flood discharge chamber 2 and is discharged from the dam body 1 through the drain port 3.

[0031] The flood discharge mechanism 8 includes a gate plate 81, one side of which is slidably connected to the inside of the device chamber 5 and the other side is fixedly connected to a threaded seat 82; a motor 85 is fixedly connected to the top of a threaded tube 84, and a protective seat 86 is connected to the top of the motor 85; a motor 85 is provided at the top of the dam body, and a protective seat 86 is provided outside the motor 85; the output end of the motor is connected to the top of the threaded tube 84, and the bottom of the threaded tube 84 extends downward into the device chamber and is threadedly connected to the threaded seat 82.

[0032] The left and right sides of the threaded seat 82 are symmetrically provided with guide cylinders fixed on the gate plate 81, and the guide cylinders are slidably connected with guide rods 83. The top and bottom ends of the guide rods 83 are fixed to the device chamber 5.

[0033] The water-facing surface and the water-receiving surface of the dam body 1 are fixedly connected with anti-sliding blocks 6, which are concrete-cast stones. The anti-sliding blocks 6 are protrudingly arranged on the water-facing surface and the water-receiving surface of the dam body 1;

[0034] Guardrails 7 are fixedly connected to the front and rear sides of the top of the dam body 1;

[0035] A cleaning mechanism 9 is fixedly connected to the water-facing surface of the dam body 1; the cleaning mechanism 9 includes a slide rail 91, which is fixedly connected to the left and right sides of the water-facing surface of the dam body 1, a salvage net 92 is slidably connected between the slide rails 91, and steel cables 93 are fixedly connected to the left and right sides of the top of the salvage net 92.

[0036] Slide blocks corresponding to the slide rails 91 are provided at the left and right ends of the salvage net 92, and the steel cable 93 is driven by a crane.

[0037] Furthermore: when discharging flood water, the threaded tube 84 is driven to rotate by the motor 85, and under the connection with the threaded seat 82, the gate plate 81 is driven to rise, so that the water flow can flow into the flood discharge chamber 2 through the water inlet 4, and then under the buffering of the flood discharge chamber 2, the water level is lowered and flows out from the drain outlet 3 to complete the flood discharge. Multiple flood discharge mechanisms 8 can regulate the amount of water flowing through the water inlet 4 to prevent excessive flood discharge from affecting the downstream area. When cleaning the floating garbage on the surface of the dam body 1, the steel cable 93 is pulled by the crane to drive the salvage net 92 to rise along the slide rail 91 to salvage the garbage to prevent the garbage from clogging the water inlet 4.

[0038] In actual operation, when this device is used, the trapezoidal design can enhance the pressure resistance of the bottom of the dam body 1 and store more water. The design of the anti-sliding block 6 on the surface of the dam body 1 provides a fixed point for maintenance staff, which is convenient for maintenance and maintenance of the surface of the dam body 1, and can also provide a gripping point for personnel who accidentally slide down the dam body 1. The drop design of the drain port 3 and the water inlet 4 reduces the outflow height of the water flow and reduces the impact force during flood discharge. When discharging flood water, the threaded pipe 84 is driven to rotate through the protective seat 86, and under the connection of the threaded seat 82, the gate plate 81 is driven to rise, guiding The design of the rod 83 limits the movement of the gate plate 81 and increases the stability of the lifting and lowering. The water flows into the flood discharge chamber 2 through the water inlet 4, and then under the buffering of the flood discharge chamber 2, the water level is lowered and flows out from the drain port 3 to complete the flood discharge. Multiple flood discharge mechanisms 8 can regulate the amount of water flowing through the water inlet 4 to prevent excessive flood discharge from affecting the downstream area. When cleaning the floating garbage on the surface of the dam body 1, the steel cable 93 is pulled by the crane to drive the salvage net 92 to rise along the slide rail 91 to salvage the garbage to prevent the garbage from gathering and blocking the water inlet 4.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A water retaining dam for water conservancy and hydropower engineering, comprising a dam body (1), characterized in that: The bottom of the backwater surface of the dam body (1) is provided with a plurality of drainage ports (3), the top of the frontwater surface of the dam body (1) is provided with a plurality of water inlets (4) at intervals, and the middle of the dam body (1) is provided with a flood discharge chamber (2) communicating with the drainage ports (3) and the water inlets (4); A device chamber (5) is provided at each water inlet (4), and a flood discharge mechanism (8) with an adjustable flood discharge volume is provided inside the device chamber (5); the flood after the flood discharge enters the flood discharge chamber (2) and is discharged from the dam body (1) through the drainage port (3).

2. A water retaining dam for water conservancy and hydropower engineering according to claim 1, characterized in that: The flood discharge mechanism (8) comprises a gate plate (81), one side of the gate plate (81) is slidably connected to the inside of the device chamber (5), and the other side is fixedly connected to a threaded seat (82); a motor (85) is provided on the top of the dam body (1), the output end of the motor (85) is connected to the top of a threaded pipe (84), and the bottom of the threaded pipe (84) extends downward into the device chamber (5) and is threadedly connected to the threaded seat (82).

3. A water retaining dam for water conservancy and hydropower engineering according to claim 2, characterized in that: Guide cylinders fixed on the gate plate (81) are symmetrically arranged on the left and right sides of the threaded seat (82), and guide rods (83) are slidably connected in the guide cylinders. The top and bottom ends of the guide rods (83) are fixed to the device chamber (5).

4. A water retaining dam for water conservancy and hydropower engineering according to claim 2, characterized in that: A protective seat (86) is provided on the outer side of the motor (85).

5. A water retaining dam for water conservancy and hydropower engineering according to claim 1, characterized in that: The water-facing surface and the water-receiving surface of the dam body (1) are fixedly connected with a plurality of anti-sliding blocks (6).

6. A water retaining dam for water conservancy and hydropower engineering according to claim 1, characterized in that: The water-facing surface of the dam body (1) is fixedly connected to a cleaning mechanism (9); the cleaning mechanism (9) comprises a slide rail (91), the slide rail (91) is fixedly connected to the left and right sides of the water-facing surface of the dam body (1), a salvage net (92) is slidably connected between the slide rails (91), and steel cables (93) are fixedly connected to the left and right sides of the top of the salvage net (92).

7. A water retaining dam for water conservancy and hydropower engineering according to claim 6, characterized in that: Slide blocks corresponding to the slide rails (91) are provided at the left and right ends of the fishing net (92).

8. A water retaining dam for water conservancy and hydropower engineering according to claim 7, characterized in that: The top of the steel cable (93) is driven by a crane.

9. A water retaining dam for water conservancy and hydropower engineering according to claim 1, characterized in that: Guardrails (7) are fixedly connected to the front and rear sides of the top of the dam body (1).

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