A repair device for high-flow overflow dam

Abstract

The present application discloses a repair device for a high-flow-rate overflow dam, which relates to the technical field of water conservancy project maintenance. The device comprises a main frame, a stabilizing component for fixing the main frame to the overflow dam is provided on the main frame, a lifting frame is slidably provided on the main frame, a water-retaining cofferdam is fixedly provided on the lifting frame, a driving member for driving the lifting frame to slide is provided on the main frame, the bottom wall of the water-retaining cofferdam is inclined and is used to be close to the water-facing surface of the overflow dam; a flow-blocking frame is slidably provided on the lifting frame, an elastic sealing gasket is fixedly provided on the flow-blocking frame, and the elastic sealing gasket is used to close the gap between the water-retaining cofferdam and the overflow dam, and a limiting member for preventing the flow-blocking frame from sliding is provided on the lifting frame. The overflow dam repair device of the present application can be stably fixed on the overflow dam in a high water flow environment, and enables the overflow dam to repair damaged parts on the overflow dam while maintaining normal operation, thereby ensuring the efficiency and speed of the repair operation.

Description

Technical Field

[0001] The present application relates to the technical field of water conservancy project maintenance, and in particular to a repair device for a high-flow-rate overflow dam. Background Art

[0002] During the construction and maintenance of water conservancy projects, overflow dams, as flood discharge facilities, play a vital role in ensuring the rational allocation of water resources and preventing and controlling floods. However, prolonged water erosion can cause localized wear and even damage to the overflow dam's surface, compromising its overall safety performance. To ensure the safe and stable operation of overflow dams, timely and effective repair of damaged areas has become a crucial step in water conservancy project construction and maintenance.

[0003] Traditional spillway repair technologies usually adopt the methods of temporary cofferdam diversion, manual removal of damaged concrete layers and re-casting. Although these technologies can solve the problem of spillway damage to a certain extent, they still face many challenges in actual operation. Especially under high water flow conditions, the construction of temporary cofferdams is difficult and inefficient. The overall repair cycle is too long and cannot effectively respond to emergency repair tasks in sudden situations. Therefore, there is an urgent need to develop an efficient and fast repair technology to replace existing repair methods. Summary of the Invention

[0004] In response to the problems existing in the prior art, the present application provides a repair device for a high-flow-rate overflow dam.

[0005] This application provides a high-flow overflow dam repair device, which adopts the following technical solution:

[0006] A repair device for a high-flow-rate overflow dam comprises a main frame, the main frame being provided with a stabilizing component for fixing the main frame to the overflow dam, a lifting frame being slidably provided on the main frame, a water-retaining cofferdam being fixedly provided on the lifting frame, a driving member being provided on the main frame for driving the lifting frame to slide, the bottom wall of the water-retaining cofferdam being inclined and used to be in close contact with the water-facing surface of the overflow dam; a flow-blocking frame being slidably provided on the lifting frame, an elastic sealing gasket being fixedly provided on the flow-blocking frame, and the elastic sealing gasket being used to close a gap between the water-retaining cofferdam and the overflow dam, and a limiting member being provided on the lifting frame for preventing the flow-blocking frame from sliding.

[0007] Optionally, the stabilizing component includes a first clamping plate fixedly set on the main frame, a second clamping plate slidably set on the main frame, and a fixing member for preventing the second clamping plate from sliding, and a clamping area is formed between the first clamping plate and the second clamping plate for clamping on the top of the overflow dam.

[0008] Optionally, the fixing member includes a tension screw, which is fixed on the first clamping plate and slidably penetrates the second clamping plate, and a nut is threadedly connected to the tension screw.

[0009] Optionally, the end surfaces of the first and second splints that are close to each other are both provided with anti-slip grooves.

[0010] Optionally, the driving member includes a transmission screw, which is rotatably arranged on the main frame and is threadably engaged with the lifting frame.

[0011] Optionally, the limiting member includes a limiting screw, which is rotatably arranged on the lifting frame, and the limiting screw is threadably engaged with the baffle frame.

[0012] Optionally, the elastic sealing pad is detachably arranged on the baffle frame.

[0013] Optionally, sealing grooves are provided on both sides of the baffle frame, an expansion airbag is placed in the sealing groove, the expansion airbag is connected to an air intake pipe, and a valve is provided on the air intake pipe.

[0014] Optionally, a buffer rack is slidably provided on the main frame, a guide plate is fixedly provided on the buffer rack, and an elastic member for driving the guide plate to slide away from the main frame is provided on the main frame.

[0015] Optionally, the guide plate is arc-shaped, and the guide plate gradually approaches the main frame from the middle to both sides.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. The repair device for the high-flow overflow dam can be stably fixed on the overflow dam in a high water flow environment, and enables the overflow dam to repair damaged parts on the overflow dam while maintaining normal operation, thereby ensuring the efficiency and speed of the repair work. Specifically, the main frame is fixed to the broken part of the overflow dam by a stabilizing component to prevent the device from shifting or falling off due to the impact of water flow; the design of the lifting frame and the water retaining cofferdam allows the device to be adjusted in height according to the specific conditions of different locations, and the broken part of the overflow dam can be enclosed in the water retaining cofferdam for repair; and the inclined bottom wall design of the water retaining cofferdam helps to better fit the water-facing surface of the overflow dam, and the elastic sealing gasket can tightly fit the gap between the water retaining cofferdam and the overflow dam, improving the waterproof effect and ensuring the safety and stability of the entire repair process.

[0018] 2. This application opens sealing grooves on both sides of the baffle frame and places expansion airbags in the sealing grooves. By opening the valve on the intake pipe and using air pumps, air pumps and other equipment to inflate the intake pipe, the expansion airbags can effectively fill the gap between the water retaining cofferdam and the overflow dam after inflation, preventing water leakage and further enhancing the water retaining effect.

[0019] 3. This application arranges a buffer frame by sliding on the main frame, and arranges a guide plate on the buffer frame. At the same time, elastic parts are used to provide a certain supporting force for the guide plate. The guide plate withstands the impact of upstream water flow, and the elastic parts buffer and offset the impact force of the water flow, thereby improving the stability of the device and the ability to resist water flow impact, and avoiding the impact force of the water flow directly acting on the water retaining cofferdam, causing damage to the water retaining cofferdam. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the installation structure of an embodiment of the present application;

[0021] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0022] Figure 3 yes Figure 2 Enlarged view of section A;

[0023] Figure 4 is a structural cross-sectional view of an embodiment of the present application;

[0024] Figure 5 yes Figure 4 Magnified view of part B;

[0025] Figure 6 yes Figure 2 Magnified view of section C.

[0026] Explanation of the accompanying drawings: 1. Main frame; 11. First splint; 12. Second splint; 13. Tension screw; 14. Transmission screw; 15. Elastic member; 2. Lifting frame; 21. Water retaining weir; 22. Flow blocking frame; 221. Sealing groove; 222. Inflatable airbag; 223. Inlet pipe; 224. Valve; 23. Limiting screw; 24. Elastic sealing pad; 3. Buffer frame; 31. Guide plate; 32. Guide column; 321. Anti-slip block. DETAILED DESCRIPTION

[0027] The following will be combined with the Figure 1 -Attached Figure 6The technical solutions in the embodiments of the present invention are clearly and completely described. The described embodiments are only possible technical implementations of the present invention and do not constitute a complete set of implementations. Those skilled in the art can combine the embodiments of the present invention to derive other embodiments without inventive work, and such embodiments are also within the scope of protection of the present invention.

[0028] The inventors of this application have discovered that conventional overflow dam repair technology cannot efficiently complete repair work under high water flow conditions, especially due to the low efficiency of temporary cofferdam construction and excessively long repair cycles. Therefore, this application provides a high-flow overflow dam repair device to achieve efficient and rapid repair of overflow dams under high water flow conditions, mainly using the following solutions:

[0029] The present application discloses a device for repairing a high-flow overflow dam. Figure 1 , including a main frame 1, a lifting frame 2 slidingly arranged on the main frame 1, and a water retaining cofferdam 21 fixedly arranged on the lifting frame 2. The main frame 1 is provided with a stabilizing component for fixing the main frame 1 on the overflow dam; the main frame 1 is fixed to the broken part of the overflow dam by the stabilizing component to prevent the device from shifting or falling off due to the impact of water flow. The design of the lifting frame 2 and the water retaining cofferdam 21 allows the device to be height-adjusted according to the specific conditions of different positions, thereby enclosing the broken part of the overflow dam within the water retaining cofferdam 21, so that the overflow dam can maintain normal operation while repairing the damaged part of the overflow dam.

[0030] Reference Figure 2 There are two groups of stabilizing components, which are arranged on both sides of the main frame 1. The stabilizing components include a first plywood 11, a second plywood 12 and a fixing part. The first plywood 11 and the second plywood 12 are both made of stainless steel. The first plywood 11 is fixed on the main frame 1, and the second plywood 12 is slidably arranged on the main frame 1 in a direction perpendicular to the first plywood 11. The first plywood 11 is parallel to the second plywood 12, and a clamping interval is formed between the first plywood 11 and the second plywood 12. The end surfaces of the first plywood 11 and the second plywood 12 that are close to each other are provided with anti-slip grooves.

[0031] Reference Figure 2 The fixing part is used to prevent the second clamping plate 12 from sliding, so that the first clamping plate 11 and the second clamping plate 12 are firmly clamped on the top of the overflow dam. The fixing part includes a tension screw 13. There are two tension screws 13 and both are fixed on the first clamping plate 11. The length directions of the two tension screws 13 are parallel, and the two tension screws 13 are slidably passed through the second clamping plate 12. Nuts are threadedly connected to the two tension screws 13.

[0032] Reference Figure 2A plurality of guide blocks are fixedly provided on the side walls of the lifting frame 2, and a guide groove for the guide blocks to slide is provided on the main frame 1. A driving member for driving the lifting frame 2 to slide is provided on the main frame 1. The driving member includes a transmission screw 14. There are two transmission screws 14 and they are respectively arranged on both sides of the main frame 1. The length of the two transmission screws 14 is vertical. The two transmission screws 14 are both rotatably provided on the main frame 1 and are both threadedly engaged with the lifting frame 2. By simultaneously rotating the transmission screws 14 on both sides of the main frame 1, the lifting frame 2 can be driven up and down.

[0033] Reference Figure 2 、 3 A buffer frame 3 is also slidably provided on the main frame 1, and a guide plate 31 is fixedly provided on the buffer frame 3. The guide plate 31 is arranged on the side of the water retaining cofferdam 21 away from the main frame 1. The guide plate 31 is arc-shaped, and the guide plate 31 gradually approaches the main frame 1 from the middle to the two sides. The material of the guide plate 31 is corrosion-resistant aluminum alloy with a thickness of 5 mm. The surface is coated to improve corrosion resistance; guide columns 32 are fixedly provided on both sides of the buffer frame 3, and the guide columns 32 are slidably penetrated on the main frame 1. The end surface of the guide column 32 away from the buffer frame 3 is fixed with an anti-slip block 321.

[0034] Reference Figure 3 The main frame 1 is provided with an elastic member 15 for driving the guide plate 31 to slide away from the main frame 1. The elastic member 15 includes a compression spring, which is sleeved on the guide column 32, and the two ends of the compression spring are respectively in contact with the main frame 1 and the buffer frame 3; the buffer frame 3 is slidably arranged on the main frame 1, and the guide plate 31 is arranged on the buffer frame 3. At the same time, the compression spring provides a certain supporting force for the guide plate 31, and the guide plate 31 is subjected to the impact of the upstream water flow, and the compression spring is used to buffer and offset the impact force of the water flow, thereby improving the stability of the device and the ability to resist the impact of the water flow, and avoiding the impact force of the water flow directly acting on the water retaining cofferdam 21, causing damage to the water retaining cofferdam 21.

[0035] Reference Figure 2 、 4 The water retaining cofferdam 21 adopts an inclined bottom wall design, which can be customized according to the specific angle of the water-facing surface, so that the bottom of the water retaining cofferdam 21 is close to the water-facing surface of the overflow dam. The material of the water retaining cofferdam 21 can be high-strength stainless steel or aluminum alloy to ensure structural stability and corrosion resistance; the specific shape of the water retaining cofferdam 21 can be trapezoidal or rectangular, which can be customized according to the specific conditions of different water-facing surfaces.

[0036] Reference Figure 4In order to prevent water from entering the interior of the water retaining cofferdam 21 when the overflow dam is repaired, a flow retaining frame 22 is slidably provided on the lifting frame 2 and located inside the water retaining cofferdam 21. A plurality of guide rods are fixedly provided on the flow retaining frame 22, and each guide rod is slidably penetrated on the lifting frame 2. A limiting member for preventing the flow retaining frame 22 from sliding is provided on the lifting frame 2. The limiting member includes a limiting screw 23, which is rotatably provided on the lifting frame 2, and the length direction of the limiting screw 23 is parallel to the length direction of the guide rod, and the limiting screw 23 is threadedly engaged with the flow retaining frame 22.

[0037] Reference Figure 4 、 5 An elastic sealing pad 24 is provided at the bottom of the baffle frame 22. In the present embodiment, the elastic sealing pad 24 is made of EPDM rubber and is fixed to the baffle frame 22 by screws. In other embodiments, the elastic sealing pad 24 can be replaced with a silicone rubber pad or other highly elastic material. After the water retaining cofferdam 21 is installed, the baffle frame 22 is driven downward, squeezing the elastic sealing pad 24 so that the elastic sealing pad 24 can fit tightly into the gap between the water retaining cofferdam 21 and the overflow dam, thereby improving the waterproofing effect. Furthermore, because the elastic sealing pad 24 is fixed to the baffle frame 22 by screws, it can be removably installed on the baffle frame 22, facilitating maintenance or replacement of the elastic sealing pad 24.

[0038] Reference Figure 6 Seal grooves 221 are provided on both sides of the baffle frame 22. Inflatable airbags 222 are placed in the seal grooves 221. The inflatable airbags 222 are connected to an air inlet pipe 223, which is provided with a valve 224. After the water retaining cofferdam 21 is installed, the valve 224 on the air inlet pipe 223 is opened, and air is inflated into the air inlet pipe 223 using an air pump or other equipment. After inflation, the inflatable airbags 222 can effectively fill the gap between the water retaining cofferdam 21 and the overflow dam, preventing water leakage and further enhancing the water retaining effect. After the inflatable airbags 222 are fully inflated, the valve 224 is closed to prevent gas from leaking out of the inflatable airbags 222.

[0039] The implementation principle of the repair device for a high-flow-rate overflow dam in an embodiment of the present application is as follows: when repairing the overflow dam, the main frame 1 is fixed to the broken part on the overflow dam by a stabilizing component to prevent the device from shifting or falling off due to the impact of water flow; by driving the lifting frame 2 downward, the bottom of the water retaining cofferdam 21 is made close to the water-facing surface of the overflow dam, thereby enclosing the broken part of the overflow dam within the water retaining cofferdam 21, and then, the flow retaining frame 22 is driven downward to squeeze the elastic sealing gasket 24 at the bottom through the flow retaining frame 22, so that the elastic sealing gasket 24 can fit tightly into the gap between the water retaining cofferdam 21 and the overflow dam. The valves 224 on the air inlet pipes 223 on both sides of the baffle frame 22 are then opened, and air is inflated into the air inlet pipes 223 using an air pump or other equipment. After inflation, the inflatable airbags 222 can effectively fill the gap between the water retaining cofferdam 21 and the overflow dam. Afterwards, the valves 224 are closed to prevent gas from escaping from the inflatable airbags 222. At this point, the damaged portion of the overflow dam can be repaired. This high-flow rate overflow dam repair device can be stably fixed to the overflow dam in a high water flow environment, allowing the overflow dam to maintain normal operation while repairing the damaged portion of the overflow dam, thereby ensuring the efficiency and speed of the repair operation.

[0040] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A repair device for a high-velocity overflow dam, characterized by: The invention comprises a main frame (1), wherein a stabilizing component for fixing the main frame (1) on the overflow dam is provided on the main frame (1), a lifting frame (2) is slidably provided on the main frame (1), a water retaining cofferdam (21) is fixedly provided on the lifting frame (2), a driving member for driving the lifting frame (2) to slide is provided on the main frame (1), the bottom wall of the water retaining cofferdam (21) is inclined and is used to be close to the water-facing surface of the overflow dam; a flow retaining frame (22) is slidably provided on the lifting frame (2), an elastic sealing gasket (24) is fixedly provided on the flow retaining frame (22), and the elastic sealing gasket (24) is used to close the gap between the water retaining cofferdam (21) and the overflow dam, and a limiting member for preventing the flow retaining frame (22) from sliding is provided on the lifting frame (2); The stabilizing assembly comprises a first clamping plate (11) fixedly arranged on the main frame (1), a second clamping plate (12) slidably arranged on the main frame (1), and a fixing member for preventing the second clamping plate (12) from sliding; a clamping area is formed between the first clamping plate (11) and the second clamping plate (12) for clamping on the top of the overflow dam; The fixing member includes a tension screw (13), the tension screw (13) is fixed on the first clamping plate (11), and the tension screw (13) is slidably arranged on the second clamping plate (12), and a nut is threadedly connected to the tension screw (13); Both sides of the baffle frame (22) are provided with sealing grooves (221), an expansion airbag (222) is placed in the sealing groove (221), the expansion airbag (222) is connected to an air intake pipe (223), and a valve (224) is provided on the air intake pipe (223); A buffer frame (3) is slidably provided on the main frame (1), a guide plate (31) is fixedly provided on the buffer frame (3), and an elastic member (15) is provided on the main frame (1) for driving the guide plate (31) to slide in a direction away from the main frame (1); The guide plate (31) is arc-shaped, and the guide plate (31) gradually approaches the main frame (1) from the middle to the two sides.

2. The high-velocity overflow dam repair device according to claim 1, characterized in that: The end surfaces of the first clamping plate (11) and the second clamping plate (12) that are close to each other are both provided with anti-slip grooves.

3. The high-velocity overflow dam repair device according to claim 1, characterized in that: The driving member comprises a transmission screw (14), the transmission screw (14) is rotatably arranged on the main frame (1), and the transmission screw (14) is threadably matched with the lifting frame (2).

4. The high-velocity overflow dam repair device according to claim 1, characterized in that: The limiting member comprises a limiting screw (23), the limiting screw (23) is rotatably arranged on the lifting frame (2), and the limiting screw (23) is threadably matched with the flow blocking frame (22).

5. The high-velocity overflow dam repair device according to claim 1, characterized in that: The elastic sealing pad (24) is detachably arranged on the flow blocking frame (22).

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