Repairing device for high-flow-speed overflow dam

Abstract

The invention discloses a repairing device for a high-flow-speed overflow dam, and relates to the technical field of hydraulic engineering maintenance, the repairing device comprises a main frame, a stabilizing assembly used for fixing the main frame on the overflow dam is arranged on the main frame, a lifting frame is slidably arranged on the main frame, and a water retaining cofferdam is fixedly arranged on the lifting frame; a driving part used for driving the lifting frame to slide is arranged on the main frame, and the bottom wall of the water retaining cofferdam is obliquely arranged and used for being tightly attached to the upstream face of the overflow dam; a flow blocking frame is arranged on the lifting frame in a sliding mode, an elastic sealing gasket is fixedly arranged on the flow blocking frame, the elastic sealing gasket is used for sealing a gap between the water blocking cofferdam and the overflow dam, and a limiting piece used for preventing the flow blocking frame from sliding is arranged on the lifting frame. The overflow dam repairing device can be stably fixed to the overflow dam in the high-water-flow environment, the damaged part on the overflow dam can be repaired while the overflow dam can work normally, and therefore the high efficiency and rapidness of repairing operation are guaranteed.

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 an important role in ensuring the rational allocation of water resources and flood prevention. However, long-term water scouring can cause local wear and even damage to the surface of the overflow dam, thus affecting the overall safety performance of the overflow dam. In order to ensure the safe and stable operation of the overflow dam, timely and effective repair of damaged parts of the overflow dam has become an important part of the construction and maintenance of water conservancy projects.

[0003] Traditional spillway repair technologies usually adopt the methods of temporary cofferdam diversion, manual removal of damaged concrete layers and re-pouring. Although these technologies can solve the problem of damaged spillway 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 the efficiency of cofferdam construction is low. 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 the existing repair methods. Summary of the invention

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

[0005] The present application provides a high-velocity overflow dam repair device, which adopts the following technical solution: A repair device for a high-flow-rate overflow dam comprises a main frame, the main frame is provided with a stabilizing component for fixing the main frame on the overflow dam, 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 used to be close to the water-facing surface of the overflow dam; a flow retaining frame is slidably provided on the lifting frame, an elastic sealing pad is fixedly provided on the flow retaining frame, and the elastic sealing pad is used to close a gap between the water retaining cofferdam and the overflow dam, and a limiting member for preventing the flow retaining frame from sliding is provided on the lifting frame.

[0006] Optionally, the stabilizing component includes a first clamping plate fixedly mounted on the main frame, a second clamping plate slidably mounted 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.

[0007] 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.

[0008] Optionally, the end surfaces of the first clamping plate and the second clamping plate that are close to each other are both provided with anti-slip grooves.

[0009] Optionally, the driving member includes a transmission screw, which is rotatably disposed on the main frame and is threadably engaged with the lifting frame.

[0010] Optionally, the limiting member includes a limiting screw, the limiting screw is rotatably disposed on the lifting frame, and the limiting screw is threadably matched with the baffle frame.

[0011] Optionally, the elastic sealing pad is detachably arranged on the baffle frame.

[0012] 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.

[0013] Optionally, a buffer frame is slidably provided on the main frame, a guide plate is fixedly provided on the buffer frame, and an elastic member for driving the guide plate to slide in a direction away from the main frame is provided on the main frame.

[0014] Optionally, the guide plate is arc-shaped, and the guide plate gradually approaches the main frame from the middle to both sides.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. The repair device of 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 the 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 parts on the overflow dam through 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 parts of the overflow dam are enclosed in the water retaining cofferdam for repair; and the inclined design of the bottom wall of the water retaining cofferdam helps to better fit the water-facing surface of the overflow dam, and the elastic sealing gasket can fit tightly into 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.

[0016] 2. The present application opens sealing grooves on both sides of the baffle frame and places inflatable airbags in the sealing grooves. By opening the valve on the air intake pipe and using an air pump, an air inflator and other equipment to inflate the air intake pipe, the inflatable 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.

[0017] 3. The present 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 bears the impact of the upstream water flow, and the elastic parts are 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, causing damage to the water retaining cofferdam. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the installation structure of an embodiment of the present application; Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 3 yes Figure 2 A magnified view of part A; Figure 4 is a structural cross-sectional view of an embodiment of the present application; Figure 5 yes Figure 4 A magnified view of part B; Figure 6 yes Figure 2 Magnified view of section C.

[0019] Explanation of the reference numerals: 1. Main frame; 11. First clamping plate; 12. Second clamping plate; 13. Tension screw; 14. Transmission screw; 15. Elastic member; 2. Lifting frame; 21. Water retaining weir; 22. Flow retaining 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

[0020] The following will be combined with the attached Figure 1 -Attached Figure 6 , the 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, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative work, and these embodiments are also within the scope of protection of the present invention.

[0021] The inventor of this application found that the traditional overflow dam repair technology cannot efficiently complete the repair work under high water flow conditions, especially the temporary cofferdam construction efficiency is low and the repair cycle is too long. To this end, this application provides a high-flow overflow dam repair device to achieve efficient and fast repair of the overflow dam under high water flow conditions, mainly using the following schemes: The present application embodiment discloses a high-velocity overflow dam repair device. Figure 1 , comprising a main frame 1, a lifting frame 2 slidably 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, and 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, so that the broken part of the overflow dam is enclosed in the water retaining cofferdam 21, so that the overflow dam can maintain normal operation while repairing the damaged part of the overflow dam.

[0022] 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 clamping plate 11, a second clamping plate 12 and a fixing member. The first clamping plate 11 and the second clamping plate 12 are both made of stainless steel. The first clamping plate 11 is fixed on the main frame 1, and the second clamping plate 12 is slidably arranged on the main frame 1 in a direction perpendicular to the first clamping plate 11. The first clamping plate 11 is parallel to the second clamping plate 12, and a clamping interval is formed between the first clamping plate 11 and the second clamping plate 12. 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.

[0023] 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. Two tension screws 13 are provided and are both 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 both slidably penetrated on the second clamping plate 12. Nuts are threadedly connected to the two tension screws 13.

[0024] Reference Figure 2 A plurality of guide blocks are fixedly provided on the side wall of the lifting frame 2, 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, and the driving member includes a transmission screw 14. Two transmission screws 14 are provided and 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 matched 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 to move up and down.

[0025] 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. A coating is provided on the surface 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, and an anti-slip block 321 is fixedly provided on the end surface of the guide column 32 away from the buffer frame 3.

[0026] 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 abutted against 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 is used to provide 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.

[0027] 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 selected from 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.

[0028] Reference Figure 4 In 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 arranged on the lifting frame 2 and located inside the water retaining cofferdam 21. A plurality of guide rods are fixedly arranged on the flow retaining frame 22. Each guide rod is slidably arranged on the lifting frame 2. A limiting member for preventing the flow retaining frame 22 from sliding is arranged on the lifting frame 2. The limiting member includes a limiting screw 23. The limiting screw 23 is rotatably arranged on the lifting frame 2, and the length direction of the limiting screw 23 is parallel to the length direction of the guide rod. The limiting screw 23 is threadedly matched with the flow retaining frame 22.

[0029] Reference Figure 4 , 5, an elastic sealing pad 24 is arranged at the bottom of the baffle frame 22. In the embodiment of the present application, the elastic sealing pad 24 is made of EPDM rubber material and is fixed to the baffle frame 22 by screws; in other application embodiments, the elastic sealing pad 24 can be replaced by a silicone rubber pad or other highly elastic material. When the water retaining cofferdam 21 is installed, the baffle frame 22 is driven to slide down and squeeze 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 to improve the waterproof effect. Furthermore, since the elastic sealing pad 24 is fixed to the baffle frame 22 by screws, the elastic sealing pad 24 can be detachably arranged on the baffle frame 22, which is convenient for maintenance or replacement of the elastic sealing pad 24.

[0030] Reference Figure 6 , both sides of the baffle frame 22 are provided with sealing grooves 221, and an inflatable airbag 222 is placed in the sealing grooves 221. The inflatable airbag 222 is connected to an air inlet pipe 223, and a valve 224 is provided on the air inlet pipe 223; when the water retaining cofferdam 21 is installed, the valve 224 on the air inlet pipe 223 is opened, and the air inlet pipe 223 is inflated with an air pump, an air pump and other equipment. After inflation, the inflatable airbag 222 can effectively fill the gap between the water retaining cofferdam 21 and the overflow dam to prevent water leakage and further enhance the water retaining effect. When the inflatable airbag 222 is inflated, the valve 224 is closed to prevent gas from leaking out of the inflatable airbag 222.

[0031] The implementation principle of a 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 to slide down, the bottom of the water retaining cofferdam 21 is made to fit tightly against 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 to slide down, and the elastic sealing pad 24 at the bottom is squeezed by the flow retaining frame 22, so that the elastic sealing pad 24 can fit tightly into the gap between the water retaining cofferdam 21 and the overflow dam. Then, the valves 224 on the air inlet pipes 223 on both sides of the baffle frame 22 are opened respectively, and air is inflated into the air inlet pipes 223 using an air pump, an air pump and other equipment. After inflation, the inflatable airbag 222 can effectively fill the gap between the water retaining cofferdam 21 and the overflow dam. Then, the valve 224 is closed to prevent gas from leaking from the inflatable airbag 222. At this time, the damaged part on the overflow dam can be repaired. The repair device for the high-flow overflow dam can be stably fixed on the overflow dam in a high water flow environment, and the overflow dam can repair the damaged part on the overflow dam while maintaining normal operation, thereby ensuring the efficiency and speed of the repair operation.

[0032] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A repair device for a high-velocity overflow dam, characterized in that: The invention comprises a main frame (1), wherein a stabilizing component for fixing the main frame (1) on an overflow dam is arranged on the main frame (1), a lifting frame (2) is slidably arranged on the main frame (1), a water retaining cofferdam (21) is fixedly arranged on the lifting frame (2), a driving member for driving the lifting frame (2) to slide is arranged on the main frame (1), the bottom wall of the water retaining cofferdam (21) is arranged obliquely and is used to be close to the water-facing surface of the overflow dam; a flow retaining frame (22) is slidably arranged on the lifting frame (2), an elastic sealing pad (24) is fixedly arranged on the flow retaining frame (22), and the elastic sealing pad (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 arranged on the lifting frame (2).

2. The high-velocity overflow dam repair device according to claim 1, characterized in that: The stabilizing component 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, wherein 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.

3. The high-velocity overflow dam repair device according to claim 2, characterized in that: The fixing member comprises 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).

4. The high-velocity overflow dam repair device according to claim 2, 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.

5. 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).

6. 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 baffle frame (22).

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

8. The high-velocity overflow dam repair device according to claim 1, characterized in that: Sealing grooves (221) are provided on both sides of the baffle frame (22), 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).

9. The high-velocity overflow dam repair device according to claim 1, characterized in that: A buffer frame (3) is slidably arranged on the main frame (1), a guide plate (31) is fixedly arranged on the buffer frame (3), and an elastic member (15) is arranged on the main frame (1) for driving the guide plate (31) to slide in a direction away from the main frame (1).

10. A high-velocity overflow dam repair device according to claim 9, characterized in that: 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.

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