Tail water maintenance platform with high safety

Abstract

The invention provides a tail water maintenance platform with high safety. The tail water maintenance platform comprises a main beam body, a first secondary beam is fixedly installed on the outer side of the main beam body, a second secondary beam is fixedly installed on the outer side of the main beam body, and a third secondary beam is fixedly installed on the outer side of the main beam body. According to the tail water maintenance platform with high safety, the high-strength aluminum alloy material is adopted, so that the tail water maintenance platform has the remarkable characteristics of corrosion resistance, high strength, high precision, light weight, good component interchangeability and universality, excellent product quality and the like, the service life is greatly prolonged, the rod piece is ensured to have enough rigidity, strength and toughness, and the manufacturability is good; meanwhile, the product passes testing and mass production and application, safety can be guaranteed, a hook type pull rod, a butterfly nut rotating connector only needing to be pulled by hand, a building connection mode at any angle and a disassembly and assembly structure of a trundle moving locking device are adopted, all parts can be rapidly unfolded, combined, disassembled, assembled and transported, and the parts do not occupy space after being disassembled and stacked. And the structure stability is good, and the practicability is high.

Description

Technical Field

[0001] This invention relates to the technical field of tailwater maintenance platforms, and in particular to a highly safe tailwater maintenance platform. Background Technology

[0002] With the broad development prospects of my country's hydropower turbine and auxiliary equipment industry, the number of equipment requiring routine maintenance in various hydropower stations is also increasing. The tailrace is the water discharged from the turbines of a hydropower station. During the maintenance of the turbine generators in the tailrace, a suspended platform needs to be erected so that maintenance personnel can stand on it to perform the work. The tailrace pipe, located below the runner, is a major flow-passing component, guiding the water flow in and out of the runner. The tailrace pipe of a hydropower station consists of a tailrace cone, elbow pipe, and diffuser section. It has a large space and considerable height. When maintenance personnel inspect the equipment above the runner in the tailrace, a maintenance platform needs to be erected. Therefore, a highly safe tailrace maintenance platform is particularly needed.

[0003] However, existing tailrace maintenance platforms are typically assembled from steel frames, which are complex in structure. This increases the workload during installation and disassembly. The standing panels are secured with bolts, making them inconvenient to disassemble and adjust, hindering rapid assembly and disassembly. Working in confined spaces is inherently dangerous, and scaffolding installation takes a considerable amount of time. Furthermore, scaffolding can become loose during use, and issues such as insufficient light inside the tailrace pipe can be difficult to detect, leading to safety hazards. Conventional tailrace maintenance platforms are usually assembled from steel frames, which are complex in structure, heavy, and prone to rust. The labor intensity required for accessing inspection holes and for installation and disassembly is high, making them extremely inconvenient. Safety during installation and disassembly inside the tailrace pipe is difficult to guarantee, and the complex operation and assembly process result in low safety. Summary of the Invention

[0004] The purpose of this invention is to provide a highly safe tailwater maintenance platform to address the problems mentioned in the background art. Existing tailwater maintenance platforms, typically assembled from steel frames, have complex structures that increase operational burden during installation and disassembly. The reliance on bolts for reinforcement between the standing plates makes them inconvenient to adjust, hindering rapid assembly and disassembly. Furthermore, working in confined spaces inherently carries risks, scaffolding installation is time-consuming, and scaffolding may become loose, posing safety hazards. Insufficient light within the tailwater pipe also makes these issues difficult to detect. Conventional tailwater maintenance platforms, usually assembled from steel frames, are complex, heavy, prone to rust, and require significant labor for access through inspection holes and installation / disassembly. They are also difficult to install and disassemble within the tailwater pipe, making safety uncertain, complex to operate, and difficult to assemble, resulting in low safety.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-safety tailrace maintenance platform, comprising a main beam body, a secondary beam one fixedly installed on the outer side of the main beam body, a secondary beam two fixedly installed on the outer side of the main beam body, a secondary beam three fixedly installed on the outer side of the main beam body, a locking block fixedly installed at the end of the secondary beam two away from the main beam body, an extension pressure rod provided on the outer side of the main beam body, a main beam connecting rod fixedly installed on the outer side of the main beam body, a door frame fixedly installed on the outer side of the door frame, a footboard one provided on the outer side of the footboard one, a small platform fixedly installed on the top of the footboard one, and installation rollers provided inside the small platform. A middle step is fixedly installed on the top of the beam body. A U-shaped pin is fixedly installed on the outer side of the middle step. A secondary beam step is fixedly installed on the outer side of the U-shaped pin. An adjustable leg is provided on the top of the middle step. A frame body is fixedly installed on the top of the adjustable leg. A diagonal tie rod is fixedly installed inside the frame body. A footboard is fixedly installed on the outer side of the frame body. A guardrail frame is fixedly installed on the top of the footboard. A guardrail body is provided inside the guardrail frame. A second step is fixedly installed on the top of the guardrail body. A horizontal tie rod is fixedly installed inside the frame body. A platform body is provided at the bottom of the middle step. An insertion hole is opened on the outer side of the platform body.

[0006] Preferably, the main beam body has two identical beams, which are symmetrically distributed about the vertical center line of the main beam connecting rod, and the two main beam bodies are fixedly connected by the main beam connecting rod.

[0007] Preferably, each of the secondary beams 1, 2, and 3 has four identical beams, with each pair of secondary beams 1, 2, and 3 located outside the main beam body, and each pair of secondary beams 1, 2, and 3 are symmetrically distributed about the vertical center line of the main beam connecting rod.

[0008] Preferably, the secondary beams one, two, and three are arranged sequentially from the center of the main beam body to the left and right, and the lengths of the secondary beams one, two, and three are arranged in descending order.

[0009] Preferably, the door frame is fixedly installed to the small platform, and the mounting roller is fixedly installed to the small platform via a rotating roller, wherein the mounting roller and the rotating roller are rotatably installed.

[0010] Preferably, the intermediate pedal is fixedly connected to the secondary beam pedal by a U-shaped pin, and the combination of the intermediate pedal, the U-shaped pin and the secondary beam pedal forms a platform.

[0011] Preferably, the adjustable legs are provided with four identical legs, and the four adjustable legs are diagonally distributed about the vertical center line of the frame body.

[0012] Preferably, there are two identical diagonal tie rods and horizontal tie rods, and the vertical cross-section of the footboard is in the shape of a staircase.

[0013] Preferably, there are multiple identical card blocks and sockets, and the multiple card blocks and sockets are compatible with each other.

[0014] Preferably, the diameter of the first-layer platform formed by the combination of the middle pedal, U-shaped pin and secondary beam pedal is 4570mm, and the diameter of the second-layer platform formed by the combination of the adjustable legs, frame body, diagonal tie rod, footboard, guardrail frame, guardrail body, second pedal and horizontal tie rod is 1800mm*860mm*1800mm.

[0015] Compared with existing technologies, the beneficial effects of this invention are as follows: This highly safe tailwater maintenance platform, made of high-strength aluminum alloy, possesses significant advantages such as corrosion resistance, high strength, high precision, light weight, good component interchangeability and versatility, and superior product quality, greatly extending its service life. Furthermore, the use of aluminum alloy tubing and aluminum alloy casting joints ensures that the mechanical properties of the components are sufficient, guaranteeing adequate rigidity, strength, and toughness. It also offers good processability and high strength. The high-strength aluminum alloy material has strong corrosion resistance and does not rust. The product has passed testing and mass production applications, ensuring safety. It employs a hook-type pull rod, a wing nut swivel joint requiring only manual operation, and an arbitrary angle connection method. The detachable structure of the caster movement locking device allows all components to be quickly assembled, disassembled, and transported. After disassembly, it is space-saving and has excellent structural stability, effectively preventing platform swaying or tilting during maintenance. This allows maintenance personnel to focus more on their work, reducing distractions due to safety concerns and improving work efficiency. High-quality materials and advanced manufacturing processes give the platform a long service life, reducing replacement frequency and maintenance costs. It can adapt to different tailwater environments, maintaining good performance and safety in humid, corrosive, high-temperature, and low-temperature conditions, thus improving the platform's environmental adaptability and practicality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the main beam and secondary beam combination structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the small platform and roller structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the installation structure of the main beam and the small platform of the present invention;

[0020] Figure 5 This is a schematic diagram of the installation structure of the middle pedal of the present invention;

[0021] Figure 6 This is a schematic diagram of the single-layer platform structure of the present invention;

[0022] Figure 7 This is a schematic diagram of the two-layer platform structure of the present invention. Figure 1 ;

[0023] Figure 8 This is a schematic diagram of the two-layer platform structure of the present invention. Figure 2 .

[0024] In the diagram: 1. Main beam body; 2. Secondary beam one; 3. Secondary beam two; 4. Secondary beam three; 5. Clamping block; 6. Extended pressure bar; 7. Main beam connecting rod; 8. Door frame; 9. Step one; 10. Small platform; 11. Mounting roller; 12. Middle step; 13. U-shaped pin; 14. Secondary beam step; 15. Adjustable leg; 16. Frame body; 17. Diagonal tie rod; 18. Footboard; 19. Guardrail frame; 20. Guardrail body; 21. Step two; 22. Horizontal tie rod; 23. Platform body; 24. Insertion hole. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1-8This invention provides a technical solution: a high-safety tailrace maintenance platform, comprising a main beam body 1, a secondary beam 1 2 fixedly installed on the outer side of the main beam body 1, a secondary beam 2 3 fixedly installed on the outer side of the main beam body 1, a secondary beam 3 4 fixedly installed on the outer side of the main beam body 1, a locking block 5 fixedly installed at the end of the secondary beam 2 3 away from the main beam body 1, an extension pressure rod 6 provided on the outer side of the main beam body 1, a main beam connecting rod 7 fixedly installed on the outer side of the main beam body 1, a door frame 8 fixedly installed on the outer side of the door frame 8, a step 1 9 provided on the outer side of the door frame 8, a small platform 10 fixedly installed on the top of the step 1 9, a roller 11 installed inside the small platform 10, and a middle step fixedly installed on the top of the main beam body 1. A U-shaped pin 13 is fixedly installed on the outer side of the middle pedal 12. A secondary beam pedal 14 is fixedly installed on the outer side of the U-shaped pin 13. An adjustable leg 15 is provided on the top of the middle pedal 12. A frame body 16 is fixedly installed on the top of the adjustable leg 15. A diagonal tie rod 17 is fixedly installed inside the frame body 16. A footboard 18 is fixedly installed on the outer side of the frame body 16. A guardrail frame 19 is fixedly installed on the top of the footboard 18. A guardrail body 20 is provided inside the guardrail frame 19. A second pedal 21 is fixedly installed on the top of the guardrail body 20. A horizontal tie rod 22 is fixedly installed inside the frame body 16. A platform body 23 is provided at the bottom of the middle pedal 12. An insertion hole 24 is opened on the outer side of the platform body 23.

[0027] The main beam body 1 has two identical main beam bodies 1, which are symmetrically distributed about the vertical center line of the main beam connecting rod 7. The two main beam bodies 1 are fixedly connected by the main beam connecting rod 7. The use of aluminum alloy tubing and aluminum alloy casting joints ensures that the mechanical performance indicators meet the requirements, thus guaranteeing that the members have sufficient rigidity, strength, toughness, good processability, and high strength.

[0028] Secondary beams 1-2, 2-3, and 3-4 are all provided with four identical beams. Every two secondary beams 1-2, 2-3, and 3-4 are located on the outside of the main beam body 1, and every two secondary beams 1-2, 2-3, and 3-4 are symmetrically distributed about the vertical center line of the main beam connecting rod 7. Through the cooperation between secondary beams 1-2, 2-3, and 3-4, the secondary beam tread 14 can be installed stably, improving the overall stability and practicality.

[0029] Secondary beams 1 (2), 2 (3), and 3 (4) are arranged sequentially from the center of the main beam 1 to the left and right, with their lengths arranged from longest to shortest. By arranging the secondary beams 1 (2), 2 (3), and 3 (4) in descending order of length, the combination of secondary beams 1 (2), 2 (3), and 3 (4) forms a complete circle, creating a platform.

[0030] The door frame 8 is fixedly installed with the small platform 10. The mounting roller 11 is fixedly installed with the small platform 10 via the rotating roller. The mounting roller 11 and the rotating roller are rotatably installed. By setting the small platform 10 and the mounting roller 11, the main beam body 1 can be pushed in more stably, and all components can be quickly unfolded, assembled, disassembled and transported. After disassembly, it does not take up space when stacked. It has good structural stability and can effectively prevent the platform from shaking or tilting during maintenance.

[0031] The intermediate step 12 is fixedly connected to the secondary beam step 14 via a U-shaped pin 13. The combination of the intermediate step 12, U-shaped pin 13, and secondary beam step 14 forms a platform. Through the cooperation between the intermediate step 12, U-shaped pin 13, and secondary beam step 14, the platform can be effectively prevented from shaking or tilting during maintenance, allowing maintenance personnel to focus more on maintenance work, reducing distractions caused by safety concerns, and thus improving work efficiency.

[0032] The adjustable legs 15 are provided with four identical legs, and the four adjustable legs 15 are diagonally distributed about the vertical center line of the frame body 16. By setting the four adjustable legs 15, the second-level platform can be adjusted to change according to the site environment, which improves the overall versatility and increases the applicability of the device.

[0033] Both the diagonal tie rod 17 and the horizontal tie rod 22 are provided in pairs. The vertical cross section of the footboard 18 is in the shape of a staircase. The addition of two diagonal tie rods 17 and horizontal tie rods 22 ensures the stability of the second-floor platform and effectively prevents the platform from swaying or tilting during maintenance. This allows maintenance personnel to focus more on their work and reduces distractions caused by safety concerns, thereby improving work efficiency.

[0034] Multiple identical card blocks 5 and sockets 24 are provided, and multiple card blocks 5 and sockets 24 are compatible, which improves the cooperation between multiple card blocks 5 and sockets 24, making the platform more stable and improving the overall stability.

[0035] The combination of the middle step 12, U-shaped pin 13, and secondary beam step 14 forms a single-layer platform with a diameter of 4570mm. The combination of the adjustable leg 15, frame body 16, diagonal tie rod 17, footboard 18, guardrail frame 19, guardrail body 20, step 21, and horizontal tie rod 22 forms a double-layer platform with a diameter of 1800mm*860mm*1800mm. Through the single-layer and double-layer platforms, it can adapt to different tailwater environments. Whether it is a humid, corrosive, high-temperature, or low-temperature environment, it can maintain good performance and safety, improve the environmental adaptability of the platform, and has high practicality.

[0036] Working principle: During use, the operator uses the rollers 11 to push the main beam body 1 into the opposite mounting hole using the extended pressure rod 6. Then, the operator installs the main beam connecting rods 7 sequentially through the insertion holes 24 to fix the two main beam bodies 1 together. Next, the operator installs the middle step 12 onto the main beam body 1. Then, the secondary beams 1-2, 2-3, and 3-4 are installed sequentially onto the outside of the main beam body 1 through the insertion holes. After the secondary beams 1-2, 2-3, and 3-4 are installed, the operator installs the secondary beam step 14 of the first-level platform onto the secondary beams 1-2, 2-3, and 3-4, and fixes it to the middle step 12 using U-shaped pins 13. Finally, the operator installs the second-level platform, attaching the adjustable legs 15 to the middle step 12, and then... Install the top frame body 16, and simultaneously install the diagonal bracing 17 inside the frame body 16. Install the footboard 18 on the outside of the frame body 16, and then install the guardrail 19 on the top of the footboard 18. Finally, install the horizontal bracing 22 inside the frame body 16. Finally, place the assembled second-level platform on the first-level platform assembled from secondary beams 1-2, 2-3, and 3-4. At this point, all processes are complete. Workers can then classify and package the scaffolding components, wrapping them tightly with plastic air cushion film and company-specific tape. During transportation, the product must be protected from drops, strong impacts, and heavy object compression. The scaffolding should be stored in an indoor warehouse, with components classified and stacked to avoid heavy object compression. Do not store it with corrosive chemicals or other hazardous materials. Once the workers have completed their operations, they can simply reverse the above process to dismantle the entire structure. The operation is simple and convenient.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A high-safety tailrace maintenance platform, comprising a main beam body (1), characterized in that: A secondary beam 1 (2) is fixedly installed on the outer side of the main beam body (1), a secondary beam 2 (3) is fixedly installed on the outer side of the main beam body (1), a secondary beam 3 (4) is fixedly installed on the outer side of the main beam body (1), a locking block (5) is fixedly installed at the end of the secondary beam 2 (3) away from the main beam body (1), an extension pressure rod (6) is provided on the outer side of the main beam body (1), a main beam connecting rod (7) is fixedly installed on the outer side of the main beam body (1), a door frame (8) is fixedly installed on the outer side of the door frame (8), a pedal 1 (9) is provided on the outer side of the pedal 1 (9), a small platform (10) is fixedly installed on the top of the pedal 1 (9), a roller (11) is provided inside the small platform (10), a middle pedal (12) is fixedly installed on the top of the main beam body (1), and a middle pedal (12) is fixedly installed on the outer side of the middle pedal (12). A U-shaped pin (13) is installed, and a secondary beam pedal (14) is fixedly installed on the outside of the U-shaped pin (13). An adjustable leg (15) is provided on the top of the middle pedal (12). A frame body (16) is fixedly installed on the top of the adjustable leg (15). A diagonal tie rod (17) is fixedly installed inside the frame body (16). A footboard (18) is fixedly installed on the outside of the frame body (16). A guardrail frame (19) is fixedly installed on the top of the footboard (18). A guardrail body (20) is provided inside the guardrail frame (19). A second pedal (21) is fixedly installed on the top of the guardrail body (20). A horizontal tie rod (22) is fixedly installed inside the frame body (16). A platform body (23) is provided at the bottom of the middle pedal (12). An insertion hole (24) is opened on the outside of the platform body (23).

2. The tailwater maintenance platform with high safety according to claim 1, characterized in that: The main beam body (1) is provided with two identical main beam bodies (1), which are symmetrically distributed about the vertical center line of the main beam connecting rod (7), and the two main beam bodies (1) are fixedly connected by the main beam connecting rod (7).

3. The tailwater maintenance platform with high safety according to claim 1, characterized in that: The secondary beams 1 (2), 2 (3) and 3 (4) are all provided with four identical beams. Each pair of secondary beams 1 (2), 2 (3) and 3 (4) is located outside the main beam body (1), and each pair of secondary beams 1 (2), 2 (3) and 3 (4) is symmetrically distributed about the vertical center line of the main beam connecting rod (7).

4. The tailrace maintenance platform with high safety according to claim 1, characterized in that: The secondary beams 1 (2), 2 (3) and 3 (4) are arranged sequentially from the center of the main beam body (1) to the left and to the right, and the lengths of the secondary beams 1 (2), 2 (3) and 3 (4) are arranged in descending order.

5. The tailrace maintenance platform with high safety according to claim 1, characterized in that: The door frame (8) is fixedly installed on the small platform (10), and the mounting roller (11) is fixedly installed on the small platform (10) through a rotating roller. The mounting roller (11) and the rotating roller are rotatably installed.

6. The tailrace maintenance platform with high safety according to claim 1, characterized in that: The intermediate pedal (12) is fixedly connected to the secondary beam pedal (14) by a U-shaped pin (13), and the combination of the intermediate pedal (12), the U-shaped pin (13) and the secondary beam pedal (14) forms a platform.

7. The tailwater maintenance platform with high safety according to claim 1, characterized in that: The adjustable legs (15) are provided with four identical legs, and the four adjustable legs (15) are diagonally distributed about the vertical center line of the frame body (16).

8. The tailwater maintenance platform with high safety according to claim 1, characterized in that: The diagonal tie rod (17) and the horizontal tie rod (22) are both provided with two identical ones, and the vertical cross section of the footboard (18) is in the shape of a staircase.

9. The tailrace maintenance platform with high safety according to claim 1, characterized in that: The card block (5) and the socket (24) are provided in multiple identical quantities, and the multiple card blocks (5) and the socket (24) are adapted to each other.

10. A high-safety tailwater maintenance platform according to claim 1, characterized in that: The combination of the middle pedal (12), U-shaped pin (13) and secondary beam pedal (14) forms a platform with a diameter of 4570mm. The combination of the adjustable leg (15), frame body (16), diagonal tie rod (17), footboard (18), guardrail frame (19), guardrail body (20), pedal two (21) and horizontal tie rod (22) forms a platform with a diameter of 1800mm*860mm*1800mm.

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