A defect elimination auxiliary device for spillway concrete

Abstract

This utility model discloses an auxiliary device for concrete defect elimination in spillways, belonging to the field of concrete defect elimination technology in hydropower stations. This utility model, by installing fixed pulley assemblies at both ends of the cantilevered support rod and simultaneously suspending baskets on both sides, offers the following advantages compared to traditional cantilever construction baskets: First, it eliminates the need for additional counterweights, balancing safety and economy. The symmetrical force distribution of the baskets on both sides balances the overturning force, eliminating the need for additional counterweights in traditional cantilever devices, reducing costs and simplifying the structure. Second, it improves efficiency through bidirectional construction, significantly shortening the cycle time. Defect elimination can be carried out simultaneously on both sides, avoiding waiting time for single-sided operations, directly improving construction efficiency and shortening the cycle. Third, compared to scaffolding-type work platforms, installation and dismantling time is shorter, operation is convenient, and significantly saves manpower and time costs. Furthermore, the length of this auxiliary device can be flexibly adjusted according to the wall width, adapting to various wall width scenarios.

Description

Technical Field

[0001] This utility model belongs to the field of concrete defect elimination technology in hydropower stations, and specifically relates to an auxiliary device for concrete defect elimination in spillways. Background Technology

[0002] The spillway of a certain hydroelectric power station is arranged in three sections on the right bank, consisting of an intake channel section, a weir gate section, a spillway section, and a sluice gate section, with a total length of 570.6m. The slope of the floor, central partition wall, and side walls in the steep section of the spillway is 1:2. The central partition wall is 11.2m high and 3.05m wide. The two side walls are 11.2m high and 1.5m wide at the top. After the spillway pouring is completed, the side walls and central partition wall require wall finishing work. Due to the height of the cavity, high-altitude work equipment is needed to complete the finishing work. Generally, suspended platforms or scaffolding can be used to build the work platform.

[0003] However, the installation platform width of traditional suspended scaffolding installation requires at least 4-6 meters, while the width of the central partition wall and side walls of the spillway is 3.05 meters and 1.5 meters respectively, making it difficult to meet the width requirements of the traditional suspended scaffolding installation platform. Furthermore, the cantilevered device of the construction suspended scaffolding cannot be installed at the top due to the limitations of the width and slope of the central partition wall and side walls, thus making it impossible to use conventional construction suspended scaffolding for concrete defect elimination. Additionally, scaffolding needs to be erected layer by layer, resulting in high erection costs.

[0004] In summary, existing aerial work platforms suffer from drawbacks such as high cost and inconvenience in installation. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an auxiliary device for concrete defect elimination in spillways, which addresses the shortcomings of the prior art. The device has a novel and reasonable design, simple structure, low cost, and is easy to install and move.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An auxiliary device for defect elimination in spillway concrete includes a cantilevered support rod, and the cantilevered support rod is also equipped with a traveling component, a locking component, and a fixed pulley component for suspending the basket;

[0008] The walking assembly includes a walking control box and two walking wheels. The walking wheels are fixed at both ends of the cantilever support rod. The walking control box is connected to the two walking wheels through a walking control line and is used to control the movement of the cantilever support rod.

[0009] The locking assembly includes a locking control box and two locking plates. The locking plates are inserted through the cantilevered support rod and located outside the traveling wheel. The locking control box is connected to the two locking plates through a locking control line. The locking control box controls the locking plates to move inward or outward to lock the cantilevered support rod to the wall.

[0010] The fixed pulley assembly includes a fixed frame and a fixed pulley. The fixed pulley is slidably mounted on the fixed frame, which is fixed to the cantilever support rod and located outside the locking plate.

[0011] Furthermore, the walking wheels are Leylo triangular wheels, and anti-slip tires are fixed to the outside of the Leylo triangular wheels.

[0012] Furthermore, an anti-slip pad layer is provided inside the locking plate.

[0013] Furthermore, multiple sets of reinforcing bars are embedded and fixed in the wall. By welding U-shaped round steel bars to the reinforcing bars and cantilevered support rods, the cantilevered support rods are locked to the wall. The round steel bars are welded to both ends of the cantilevered support rods, and each set of reinforcing bars consists of two parallel reinforcing bars.

[0014] Furthermore, the cantilever support rod is made of steel pipe with an outer diameter of 114mm and a wall thickness of 4mm, the dowel bar is made of dowel bar with an outer diameter of 20mm, and the round steel is made of round steel with an outer diameter of 12mm.

[0015] Furthermore, the travel control box and the locking control box are symmetrically fixed on both sides of the center of the cantilever support rod.

[0016] Furthermore, the fixing frame and the cantilever support rod are fixed by welding.

[0017] This utility model has the following advantages compared with the prior art:

[0018] This invention, by installing fixed pulley assemblies at both ends of the cantilevered support rod and suspending baskets on both sides simultaneously, offers the following advantages compared to traditional construction basket cantilever devices: First, it eliminates the need for additional counterweights, balancing safety and economy. The symmetrical force distribution of the baskets on both sides balances the overturning force, eliminating the need for additional counterweights in traditional cantilever devices, reducing costs and simplifying the structure. Second, it improves efficiency through bidirectional construction, significantly shortening the cycle time. Defect removal work can be carried out simultaneously on both sides, avoiding waiting time for single-sided operations, directly improving construction efficiency and shortening the cycle. Third, compared to scaffolding-style work platforms, installation and dismantling time is shorter, operation is convenient, and significantly saves labor and time costs. Furthermore, the length of the defect removal auxiliary device can be flexibly adjusted according to the wall width, adapting to various wall width scenarios; the walking component enables the device to move independently, reducing the investment of construction personnel and equipment, further reducing labor costs; and the locking component allows for quick fixation of the cantilevered support rod, facilitating workers to quickly enter the working state.

[0019] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of an embodiment of the spillway concrete defect elimination auxiliary device of this utility model;

[0021] Figure 2 This is a schematic diagram of the cantilevered support rod structure of an embodiment of the spillway concrete defect elimination auxiliary device of this utility model;

[0022] Figure 3 This is a schematic diagram of the fixed pulley assembly structure of an embodiment of the spillway concrete defect elimination auxiliary device of this utility model;

[0023] Figure 4 This is a schematic diagram of the locking component structure of an embodiment of the spillway concrete defect elimination auxiliary device of this utility model;

[0024] Figure 5 This is a schematic diagram of the walking component structure of an embodiment of the spillway concrete defect elimination auxiliary device of this utility model.

[0025] Figure 6 This is a schematic diagram of the secondary fixing structure of an embodiment of the spillway concrete defect elimination auxiliary device of this utility model;

[0026] Figure 7 This is a schematic diagram of the existing technology structure;

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Cantilever support rod; 2. Fixed pulley assembly; 3. Locking plate; 4. Traveling wheels;

[0029] 5. Travel control cable; 6. Travel control box; 7. Locking control cable; 8. Locking control box;

[0030] 9. Fixing frame; 10. Fixed pulley; 11. Anti-slip pad; 12. Inserting rib; 13. Round steel;

[0031] 14. Steel wire rope; 15. Suspended platform. Detailed Implementation

[0032] Example of a concrete defect elimination auxiliary device for spillway:

[0033] Traditional suspended platform installation requires a platform width of at least 4-6 meters, such as... Figure 7 As shown, relying on the bottom foundation support, the suspended basket 15 is attached using a triangular cantilever structure, with a counterweight on the right side for balance, to achieve suspended operation. The width of the bottom foundation support is 5.45m. It can be seen that due to the limitations of this triangular cantilever structure, the installation platform width of the traditional suspended basket 15 installation needs to be at least 4 to 6m.

[0034] For a certain hydroelectric power station spillway, the width of the partition wall is 3.05m and the top width of the side wall is 1.5m. Neither of the two walls can meet the installation width of the traditional suspended basket 15 structure. Therefore, this utility model provides the following suspended basket 15 suspension structure.

[0035] like Figure 1-6 As shown, the spillway concrete defect elimination auxiliary device includes a cantilevered support rod 1, which is also equipped with a traveling assembly, a locking assembly, and a fixed pulley assembly 2 for suspending the suspended platform 15. The cantilevered support rod 1 is the core component of the entire device, used to install other components on the cantilevered support rod 1, and at the same time, the cantilevered support rod 1 is used to bear the entire load of the construction suspended platform 15.

[0036] The walking assembly includes a walking control box 6 and two walking wheels 4. The walking wheels 4 are fixed to both ends of the cantilever support rod 1. The walking control box 6 is connected to the two walking wheels 4 via walking control lines 5 to control the movement of the cantilever support rod 1. Because the top surface of the spillway wall is mostly sloping, to ensure the stable movement of the cantilever support rod 1, the walking wheels 4 are Reilly triangular wheels, with anti-slip tires fixed to the outside of these Reilly triangular wheels. The walking control box 6 uses a BM24C10-CAN (24V / 100A) controller.

[0037] The locking assembly includes a locking control box 8 and two locking plates 3. The locking plates 3 pass through the cantilevered support rod 1 and are located outside the traveling wheel 4. The locking control box 8 is connected to the two locking plates 3 via a locking control line 7. The locking control box 8 controls the locking plates 3 to move inward or outward, thereby locking the cantilevered support rod 1 to the wall. An anti-slip pad layer 11 is provided inside the locking plates 3. The anti-slip pad layer 11 not only increases the friction between the locking plates 3 and the wall, but also... The locking control box 8 uses a 1212P-2502(90A) controller.

[0038] To facilitate the installation of the fixed pulley 10 on the cantilever support rod 1, the fixed pulley assembly 2 includes a fixed frame 9 and the fixed pulley 10. The fixed pulley 10 is slidably mounted on the fixed frame 9, which is fixed to the cantilever support rod 1 and located outside the locking plate 3. By using the fixed frame 9 as a connector between the fixed pulley 10 and the cantilever support rod 1, it is convenient to connect the fixed pulley 10 to the wire rope 14 of the winch. The suspended platform 15 is raised and lowered by the winch, providing a working platform for workers to carry out defect elimination work. The fixed pulley assembly 2 is used to transfer the load of the construction suspended platform 15 to the cantilever support rod 1.

[0039] To ensure stability and ease of installation, the fixing frame 9 and the cantilevered support rod 1 are fixed by welding.

[0040] In order to achieve secondary fixation between the cantilever support rod 1 and the wall, multiple sets of reinforcing bars 12 are embedded and fixed on the wall. By welding U-shaped round steel bars 13 to the reinforcing bars 12 and the cantilever support rod 1, the cantilever support rod 1 is locked to the wall. The round steel bars 13 are welded to both ends of the cantilever support rod 1. Each set of reinforcing bars 12 consists of two parallel reinforcing bars 12. Figure 6 The cantilever support rod 1 is fixed by four U-shaped round steel bars 13. Generally, two U-shaped round steel bars 13 can also be used to achieve stable fixation of the cantilever support rod 1. The specific number is selected according to the actual needs.

[0041] Preferably, the cantilever support rod 1 is a steel pipe with an outer diameter of 114mm and a wall thickness of 4mm, the insert rod 12 is an insert rod with an outer diameter of 20mm, and the round steel 13 is a round steel with an outer diameter of 12mm.

[0042] To facilitate the movement of other components by the cantilever support rod 1, the aforementioned movement control box 6 and locking control box 8 are symmetrically fixed on both sides of the center of the cantilever support rod 1.

[0043] In use, this utility model involves first embedding the reinforcing bars 12 into the top surface of the wall during wall pouring, ensuring that a portion of the reinforcing bars 12 protrudes for welding with the round steel bars 13. The spillway concrete defect elimination auxiliary device is then placed on the wall. The travel control box 6 controls the travel wheels 4 to rotate, causing the entire device to move back and forth along the length of the wall. Simultaneously, the locking control box 8 controls the locking plate 3 to move outward to release the lock. Once the device reaches the designated position, the locking control box 8 controls the locking plate 3 to move inward. The clamping force of the two locking plates 3 secures the device to the wall. To ensure stability, a U-shaped round steel bar 13 is used to hold the cantilevered support rod 1. The round steel bar 13 and the cantilevered support rod 1, as well as the round steel bar 13 and the reinforcing bars 12, are welded together to achieve secondary fixation of the device. Two suspended baskets 15 are connected to the fixed pulleys 10 on both sides. The winch of the suspended basket 15 controls its lifting and lowering, completing the defect elimination work on both sides of the wall. Both suspended platforms 15 are of the same specification. Since the weight of the platform 15 itself is much greater than the weight of the workers, there is no absolute requirement for the number of workers on either platform 15; that is, there is no absolute requirement for the load capacity of the platform 15. It is only required that both platforms 15 be installed and constructed simultaneously. When the construction of this section is completed, the welding between the round steel 13 and the reinforcing bar 12 is released, the locking control box 8 controls the locking plate 3 to unlock, the platform 15 is disassembled, and the travel control box 6 controls the travel wheels 4 to rotate, moving the device to the next designated position. The above operation is repeated until the device is secured, and then the platform 15 is installed on the fixed pulley 10. When using this device again, it is strictly forbidden to move the platform 15 carrying personnel.

[0044] This device, by setting fixed pulley assemblies 2 at both ends of the cantilever support rod 1 and suspending the basket 15 on both sides simultaneously, not only eliminates the need for additional configurations but also improves construction efficiency. Defect elimination work can be carried out on both sides at the same time, shortening the construction cycle and improving construction efficiency. Compared with scaffolding-type work platforms, this device has a shorter installation time and is easy to assemble and disassemble, greatly saving manpower and time costs.

[0045] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A spillway concrete defect elimination auxiliary device, characterized by: It includes a cantilever support rod (1), and the cantilever support rod (1) is also equipped with a walking component, a locking component, and a fixed pulley assembly (2) for suspending the basket (15). The walking assembly includes a walking control box (6) and two walking wheels (4). The walking wheels (4) are fixed at both ends of the cantilever support rod (1). The walking control box (6) is connected to the two walking wheels (4) through the walking control line (5) to control the movement of the cantilever support rod (1). The locking assembly includes a locking control box (8) and two locking plates (3). The locking plates (3) are inserted through the cantilever support rod (1) and located outside the traveling wheel (4). The locking control box (8) is connected to the two locking plates (3) through the locking control line (7). The locking control box (8) controls the locking plates (3) to move inward or outward so as to lock the cantilever support rod (1) to the wall. The fixed pulley assembly (2) includes a fixed frame (9) and a fixed pulley (10). The fixed pulley (10) is slidably mounted on the fixed frame (9). The fixed frame (9) is fixed to the cantilever support rod (1) and located outside the locking plate (3).

2. A spillway concrete defect elimination aid as defined in claim 1, wherein: The walking wheel (4) is a Leroy triangular wheel, and an anti-slip tire is fixed to the outside of the Leroy triangular wheel.

3. A spillway concrete defect elimination aid as defined in claim 1 wherein: The locking plate (3) is provided with an anti-slip pad layer (11).

4. A spillway concrete defect elimination aid as defined in claim 1 wherein: Multiple sets of reinforcing bars (12) are embedded and fixed on the wall. By welding U-shaped round steel bars (13) to the reinforcing bars (12) and the cantilever support rod (1), the cantilever support rod (1) is locked to the wall. The round steel bars (13) are welded to both ends of the cantilever support rod (1). Each set of reinforcing bars (12) consists of two parallel reinforcing bars (12).

5. A spillway concrete defect elimination aid as defined in claim 4 wherein: The cantilever support rod (1) is made of steel pipe with an outer diameter of 114mm and a wall thickness of 4mm, the reinforcing bar (12) is made of reinforcing bar with an outer diameter of 20mm, and the round steel (13) is made of round steel with an outer diameter of 12mm.

6. A spillway concrete defect elimination aid as defined in claim 1 wherein: The walking control box (6) and the locking control box (8) are symmetrically fixed on both sides of the center of the cantilever support rod (1).

7. A spillway concrete defect elimination aid as defined in claim 1 wherein: The fixed frame (9) and the cantilever support rod (1) are fixed by welding.

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