A tail water maintenance platform

Abstract

The utility model relates to the technical field of the overhaul platform, concretely relates to a tail water overhaul platform, including two roof beams, still including the first panel and the second panel of a plurality of first panel of installing on roof beam, a plurality of first panel is connected with two roof beams through first buckle spare respectively, a plurality of second panel is connected with two roof beams through second buckle spare respectively, still detachable connection has a plurality of third panel in the both sides of first panel and second panel. It is used for solving the technical problem of the heavy weight of traditional steel structure overhaul platform, the difficulty of carrying and installing, needing many people to cooperate, and being limited by tail water overhaul hole size, the assembly is difficult to pass through smoothly, the labor intensity of installation and dismounting process is high.

Description

Technical Field

[0001] This utility model relates to the technical field of maintenance platforms, specifically to a tailwater maintenance platform. Background Technology

[0002] The tailrace maintenance platform is a key facility in hydropower stations used for inspecting and maintaining the tailrace section of the turbine-generator unit. The tailrace is the water flow discharged after the turbine has performed its work; its internal structure is complex, requiring personnel to enter the tailrace pipe or tailrace tunnel for inspection and maintenance. Due to the confined space and humid environment of the tailrace area, maintenance personnel often need to work suspended in mid-air; therefore, a stable and safe maintenance platform must be constructed.

[0003] Currently, hydropower stations often lack dedicated maintenance platforms when conducting tailrace maintenance. Workers typically use temporary structures, assembling work platforms from loose components such as steel pipes and wooden planks. However, such temporary platforms are structurally unstable, and the environment inside the tailrace pipe is slippery, making them prone to slipping or collapse, resulting in poor safety. In addition, traditional steel structure maintenance platforms are heavy, difficult to transport and install, require multiple people to work together, and are limited by the size of the tailrace inspection hole, making it difficult for components to pass through smoothly. The installation and dismantling process is labor-intensive. Utility Model Content

[0004] The purpose of this utility model is to provide a tailrace maintenance platform to solve the technical problems of traditional steel structure maintenance platforms, which are heavy, difficult to transport and install, require multiple people to cooperate, and are limited by the size of the tailrace maintenance hole, making it difficult for components to pass smoothly, and the high labor intensity of the installation and disassembly process.

[0005] This utility model is achieved through the following technical solution:

[0006] A tailrace maintenance platform includes two main beams, and several first panels and several second panels mounted on the main beams. The first panels are connected to the two main beams via first fasteners, and the second panels are connected to the two main beams via second fasteners. Several third panels are detachably connected to both sides of the first and second panels. This application addresses the technical problems of traditional steel structure maintenance platforms, such as heavy weight, difficulty in transportation and installation, the need for multiple personnel, limitations in the size of the tailrace inspection hole, difficulty in smoothly passing components, and high labor intensity during installation and disassembly.

[0007] Furthermore, the first fastener includes a first mounting hole at both ends of the first panel, at least one fixing rod is detachably installed in the first mounting hole, a compression spring is sleeved on the fixing rod, and a first mating plate is movably passed through the outer wall of the fixing rod. The end of the compression spring is flexibly connected to the first mating plate, and the first mating plate is mated with the main beam.

[0008] Furthermore, the second fastener includes second mounting holes at both ends of the second panel, and a second mating plate that mates with the main beam is detachably installed in the second mounting holes.

[0009] Furthermore, a mounting base is provided on the second mating plate, and a support component is disposed within the mounting base. The support component is used to support several third panels.

[0010] Furthermore, the first mating plate includes a fixed plate and an inclined plate, with a first groove formed between the fixed plate and the inclined plate, into which a portion of the main beam is embedded. The first mating plate consists of a fixed plate and an inclined plate, forming a first groove at a specific angle between them. During installation, the operator can apply external force to push the first mating plate, moving it along the fixed rod until the first groove tightly engages with the corresponding part of the main beam. Due to the elasticity of the compression spring, the first mating plate is continuously subjected to inward pressure, thereby enhancing its clamping effect with the main beam and preventing loosening or detachment. This design not only improves the reliability of the connection but also allows for fine-tuning during installation to adapt to different working conditions.

[0011] Furthermore, the second mating plate includes a first connecting plate, a second connecting plate, and a third connecting plate. The second connecting plate is perpendicularly connected to the first connecting plate, and the third connecting plate is connected to the second connecting plate. The third connecting plate is parallel to the first connecting plate, and the first connecting plate, the second connecting plate, and the third connecting plate form a second slot. The main beam is partially embedded in the second slot.

[0012] Furthermore, the mounting base includes a mounting platform and a diagonal brace platform. The support assembly includes a first support rod and a second support rod. The first support rod is located inside the mounting platform, and the second support rod is located inside the diagonal brace platform. At least two third panels are connected to the keel, and the third panels have through holes. The first support rod is connected to the keel via steel cables passing through the through holes. The reason for setting up the diagonal brace platform in this application is that the weight of the third panels borne by the keel is transferred to the first support rod (vertically) via steel cables, while the diagonal brace platform transmits part of the load obliquely to the main beam via the second support rod, avoiding stress concentration caused by the vertical support rod being subjected to force alone.

[0013] Furthermore, a ground light is also installed in the second mounting hole. It provides low-glare, high-coverage work lighting, avoiding the blind spots caused by traditional handheld lights, and is especially suitable for nighttime or deep-hole maintenance scenarios.

[0014] Furthermore, spotlights are installed on the first support rod. This allows for a multi-level lighting system to be formed together with the ground lights in the second mounting hole, ensuring lighting needs under different working conditions.

[0015] Furthermore, a safety barrier is installed on the third panel.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0017] 1. This application solves the technical problems of traditional steel structure maintenance platforms being heavy, difficult to transport and install, requiring multiple people to cooperate, and limited by the size of the tailwater maintenance hole, making it difficult for components to pass smoothly, and the high labor intensity of the installation and disassembly process by detachably connecting the first panel, the second panel and the third panel on the main beam.

[0018] 2. The first fastener provided in this application has a compression spring inside. Through the elastic action of the compression spring, the first mating plate will be continuously subjected to inward pressure, thereby enhancing its clamping effect with the main beam and preventing loosening or falling off. This design not only improves the reliability of the connection, but also allows for fine-tuning during installation to adapt to different working conditions.

[0019] 3. This application provides a second fastener and a mounting base on the second fastener, with a support component inside the mounting base. The support component is used to connect the third panel, so that the second fastener does not only serve a connecting function. The support component on the second fastener can form a flexible tension structure according to the steel cable passing through the through hole and connecting with the keel. The length of the steel cable can be finely adjusted to adapt to the installation angle of different panels. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model;

[0022] Figure 2 This is a top view of the assembly of the first panel, the second panel, and the third panel of this utility model;

[0023] Figure 3 This is a structural diagram of the first fastener assembly of this utility model;

[0024] Figure 4 This is a structural diagram of the second fastener assembly of this utility model;

[0025] Figure 5 For the present utility model Figure 3 Enlarged view of part A in the image;

[0026] Figure 6 This is an exploded view of the first fastener of this utility model;

[0027] Figure 7 For the present utility model Figure 4 The three-dimensional diagram of part B in the image.

[0028] The attached diagram shows the markings and corresponding component names:

[0029] 1-Main beam; 2-First panel; 3-Second panel; 4-Third panel; 5-First mounting hole; 6-Fixing rod; 7-Compression spring; 8-Second mounting hole; 9-Fixing plate; 10-Inclined plate; 11-First slot; 12-First connecting plate; 13-Second connecting plate; 14-Third connecting plate; 15-Second slot; 16-Mounting platform; 17-Inclined brace platform; 18-First support rod; 19-Second support rod; 20-Keel; 21-Through hole; 22-Steel cable; 23-Ground light; 24-Spotlight; 25-Safety fence. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0031] Example 1:

[0032] like Figure 1 As shown, a tailrace maintenance platform includes two main beams 1, and several first panels 2 and several second panels 3 installed on the main beams 1. The several first panels 2 are respectively connected to the two main beams 1 by first fasteners, and the several second panels 3 are respectively connected to the two main beams 1 by second fasteners. Several third panels 4 are detachably connected to both sides of the first panels 2 and the second panels 3.

[0033] It should be noted that a safety barrier is installed on the third panel 4.

[0034] The specific working principle of Example 1:

[0035] Traditional steel structure maintenance platforms suffer from the following technical problems: First, the overall structural weight is too large, requiring multiple people to work together during handling and installation, resulting in low construction efficiency; second, due to the size limitation of the tailrace inspection hole, the integral platform components cannot pass smoothly, causing great inconvenience to transportation and installation; third, the installation and dismantling processes are labor-intensive and limited by the working space, making it difficult to guarantee construction safety. To address these problems, this application innovatively adopts a modular and detachable design.

[0036] This application includes a first panel 2, a second panel 3, a third panel 4, a main beam 1, and other detachable components.

[0037] First, workers only need to transport the corresponding panels and main beam 1 to the destination for installation. During this transportation phase, each component can be transported independently, and their individual dimensions have been optimized to ensure they can pass smoothly through the tailrace inspection hole size restrictions. Workers only need to transport the panel components and main beam 1 to their respective installation locations, greatly reducing transportation difficulty.

[0038] Secondly, after installing the two main beams 1, the first panel 2 and the second panel 3 are laid sequentially on the main beams 1. The main beams 1 serve as the primary load-bearing structure of the entire platform. The laying order of the first panel 2 and the second panel 3 is not fixed and can be done alternately, significantly improving construction flexibility. Subsequently, a detachable connection is made using the first and second snap-fit ​​fasteners, or a bolt connection can be used. This application prioritizes snap-fit ​​connections for quick installation. After installing the first panel 2 and the second panel 3, the third panel 4 is detachably connected to both ends of the first panel 2 and the second panel 3, preferably a rotating detachable connection. The structure in Embodiment 1 of this application solves the technical problems of traditional steel structure maintenance platforms: heavy weight, difficult handling and installation, requiring multiple people, limited by the size of the tailrace inspection hole, difficulty in smoothly passing components, and high labor intensity during installation and disassembly.

[0039] Example 2:

[0040] The first fastener includes a first mounting hole 5 at both ends of the first panel 2. At least one fixing rod 6 is detachably installed in the first mounting hole 5. A compression spring 7 is sleeved on the fixing rod 6. A first mating plate is movably passed through the outer wall of the fixing rod 6. The end of the compression spring 7 is flexibly connected to the first mating plate, and the first mating plate is mated with the main beam 1.

[0041] It should be noted that the first mating plate includes a fixed plate 9 and an inclined plate 10, and a first slot 11 is formed between the fixed plate 9 and the inclined plate 10, and the main beam 1 is partially embedded in the first slot 11.

[0042] The specific working principle of Example 2:

[0043] In this application, the main beam 1 is a channel steel, and the cross-section of the main beam 1 is I-shaped, such as... Figure 1 , 2As shown in Figures 3, 5, and 6, a fixing rod 6, preferably two fixing rods 6, is bolted into the first mounting hole 5. Each fixing rod 6 is fitted with a compression spring 7. One end of the compression spring 7 is fixed to the fixing rod 6, and the other end is connected to a first mating plate. The first mating plate is movably inserted through the fixing rod 6, meaning it can move axially along the fixing rod 6. The operator moves the first mating plate until it engages and locks with the main beam 1. The first mating plate consists of a fixing plate 9 and an inclined plate 10, forming a first groove 11 at a specific angle between them. During installation, the operator can apply external force to push the first mating plate, moving it along the fixing rod 6 until the first groove 11 tightly engages with the corresponding part of the main beam 1. Due to the elasticity of the compression spring 7, the first mating plate continuously experiences inward pressure, thereby enhancing its locking effect with the main beam 1 and preventing loosening or detachment. This design not only improves the reliability of the connection but also allows for fine-tuning during installation to adapt to different working conditions.

[0044] Example 3:

[0045] The second fastener includes a second mounting hole 8 at both ends of the second panel 3, and a second mating plate that mates with the main beam 1 is detachably installed in the second mounting hole 8.

[0046] It should be noted that a mounting base is provided on the second mating plate, and a support component is provided inside the mounting base. The support component is used to support several third panels 4.

[0047] It should be noted that the second mating plate includes a first connecting plate 12, a second connecting plate 13, and a third connecting plate 14. The second connecting plate 13 is vertically connected to the first connecting plate 12, and the third connecting plate 14 is connected to the second connecting plate 13. The third connecting plate 14 is parallel to the first connecting plate 12. The first connecting plate 12, the second connecting plate 13, and the third connecting plate 14 form a second slot 15, and the main beam 1 is partially embedded in the second slot 15.

[0048] It should be noted that the mounting base includes a mounting platform 16 and a diagonal brace platform 17. The support assembly includes a first support rod 18 and a second support rod 19. The first support rod 18 is located inside the mounting platform 16, and the second support rod 19 is located inside the diagonal brace platform 17. At least two third panels 4 are connected to the keel 20. The third panel 4 has through holes 21. The first support rod 18 is connected to the keel 20 through the through holes 21 via steel cables 22. The reason for setting the diagonal brace platform 17 in this application is that the weight of the third panel 4 borne by the keel 20 is transferred to the first support rod 18 (vertically) via the steel cables 22, while the diagonal brace platform 17 transmits part of the load obliquely to the main beam 1 via the second support rod 19, avoiding stress concentration caused by the vertical support rod being subjected to force alone.

[0049] It should be noted that a ground light 23 is also installed in the second mounting hole 8. It can provide low glare and high coverage work lighting, avoiding the shadow blind spots caused by traditional handheld lights, and is especially suitable for nighttime or deep hole maintenance scenarios.

[0050] It should be noted that a spotlight 24 is installed on the first support rod 18. This allows it to form a multi-level lighting system with the ground light 23 in the second mounting hole 8, ensuring lighting needs under different working conditions.

[0051] The specific working principle of Example 3:

[0052] like Figure 4 and Figure 7 As shown, this application considers that the third panel 4 is a detachable connection. In order to meet the limitations of the tailrace size, since the tailrace size is mostly circular, after several third panels 4 are connected with the first panel 2 and the second panel 3, the overall shape after unfolding matches the contour of the tailrace inner wall, that is, it can be circular. Therefore, the lengths of several third panels 4 on the same side are not the same, such as... Figure 2 As shown, however, due to the different sizes, if the third panel 4 is not accurately positioned during installation (e.g., the shorter third panel 4 is mistakenly placed in a wider area), the panel may not effectively contact the inner wall of the tailrace, or even flip downwards due to gravity, disrupting the overall levelness. In this case, a ring-shaped support needs to be installed on the inner wall of the tailrace for the third panel 4 to temporarily rest on, ensuring all panels are initially positioned before final fixing. Alternatively, the third panel 4 can use a flip-up hinge structure, with mechanical limits to automatically lock it after unfolding, preventing accidental sagging. However, under long-term load, the hinge may loosen due to fatigue, thus requiring additional support structures.

[0053] Therefore, this application sets a second mating plate, which is composed of a first connecting plate 12, a second connecting plate 13, and a third connecting plate 14, as shown in the figure. It can be seen that the first connecting plate 12, the second connecting plate 13, and the third connecting plate 14 form a second slot 15. The second slot 15 is also connected to the main beam 1 in a partially embedded manner. The second mating plate is equipped with a mounting seat, which is installed on the first connecting plate 12. As mentioned above, the mounting seat includes a mounting platform 16 and a diagonal brace platform 17. The support components include a first support rod 18 and a second support rod 19. The first support rod 18 is located in the mounting platform 16, and the second support rod 19 is located in the diagonal brace platform 17. At least two third panels 4 are connected to the keel 20. The third panel 4 has a through hole 21. The first support rod 18 is connected to the keel 20 through the through hole 21 by a steel cable 22. The first support rod 18 of this application is connected to the keel 20 via a steel cable 22 passing through the through hole 21. The keel 20 only connects to a few of the third panels 4; the remaining third panels 4 do not all need to be connected to the keel 20, but the keel 20 provides load-bearing capacity. The remaining third panels 4 are then overlapped onto the keel 20, thus providing support for each third panel 4. Furthermore, the steel cable 22, passing through the through hole 21 and connecting to the keel 20, forms a flexible tension structure. The length of the steel cable 22 can be finely adjusted to adapt to different panel installation angles. Even if individual panel connections fail, the steel cable 22 system can still distribute the load through the keel 20, preventing collapse. The through hole 21 on the third panel 4 also reduces the weight of the third panel 4, facilitating transportation.

[0054] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tailrace access platform comprising two main beams (1), characterised in that, It also includes several first panels (2) and several second panels (3) installed on the main beam (1). The several first panels (2) are connected to the two main beams (1) respectively through first fasteners, and the several second panels (3) are connected to the two main beams (1) respectively through second fasteners. Several third panels (4) are also detachably connected to both sides of the first panels (2) and the second panels (3).

2. A tailrace access platform according to claim 1, wherein, The first fastener includes a first mounting hole (5) at both ends of the first panel (2). At least one fixing rod (6) is detachably installed in the first mounting hole (5). A compression spring (7) is sleeved on the fixing rod (6). A first mating plate is also movably passed through the outer wall of the fixing rod (6). The end of the compression spring (7) is flexibly connected to the first mating plate, and the first mating plate is mated with the main beam (1).

3. The tailrace access platform of claim 1, wherein, The second fastener includes a second mounting hole (8) at both ends of the second panel (3), and a second mating plate that mates with the main beam (1) is detachably installed in the second mounting hole (8).

4. A tailrace access platform according to claim 3, wherein, The second mating plate is provided with a mounting base, and the support component is provided in the mounting base. The support component is used to support several third panels (4).

5. The tailrace access platform of claim 2, wherein, The first mating plate includes a fixed plate (9) and an inclined plate (10), and a first slot (11) is formed between the fixed plate (9) and the inclined plate (10), and the main beam (1) is partially embedded in the first slot (11).

6. A tailrace access platform according to claim 4, wherein, The second mating plate includes a first connecting plate (12), a second connecting plate (13) and a third connecting plate (14). The second connecting plate (13) is vertically connected to the first connecting plate (12). The third connecting plate (14) is connected to the second connecting plate (13) and is parallel to the first connecting plate (12). The first connecting plate (12), the second connecting plate (13) and the third connecting plate (14) form a second slot (15). The main beam (1) is partially embedded in the second slot (15).

7. The tailrace access platform of claim 4, wherein, The mounting base includes a mounting platform (16) and a bracing platform (17). The support assembly includes a first support rod (18) and a second support rod (19). The first support rod (18) is located inside the mounting platform (16), and the second support rod (19) is located inside the bracing platform (17). At least two third panels (4) are connected to a keel (20). The third panel (4) has a through hole (21). The first support rod (18) is connected to the keel (20) by passing through the through hole (21) with a steel cable (22).

8. The tailrace access platform of claim 3, wherein, A ground lamp (23) is also installed in the second mounting hole (8).

9. The tailrace access platform of claim 7, wherein, A spotlight (24) is installed on the first support rod (18).

10. The tailrace access platform of claim 1, wherein, A safety barrier is installed on the third panel (4).

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