Safety auxiliary device for fan foundation construction

Abstract

The utility model discloses fan foundation construction safety auxiliary device, including the foundation pit below recessing in horizontal ground and the fan foundation fixed in the foundation pit still include two groups of safety rope support frame opposite setting on horizontal ground, and two groups of safety rope support frame are connected with the safety rope that hangs in the air above fan foundation, a plurality of lock catch can be slidably arranged on safety rope. The utility model discloses two groups of safety rope support frame will safety rope be drawn tight and fixed and make safety rope hang in the air above fan foundation, and the construction personnel can be connected with the safety belt through the lock catch on safety rope to play the effect of safety protection, the utility model discloses simple structure, need not change the self structure of fan foundation, therefore can not influence the normal construction of fan foundation, and because safety rope hangs in the air above the construction personnel, will not cause the hindrance to the movement and construction operation of construction personnel, guarantees the normal operation of construction work while providing good protection effect for construction personnel.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine construction technology, and in particular to a safety auxiliary device for wind turbine foundation construction. Background Technology

[0002] As wind power is one of the most important renewable energy sources, a large number of wind power plants have been developed and constructed. In the construction of wind farms, safety devices are crucial to ensuring the safety of construction workers and equipment; for example, when installing the upper anchor plates of the wind turbine foundation, it is essential to equip construction workers with safety protective devices.

[0003] For example, the invention patent application with publication number CN120739364A discloses a protective frame for anchor plate installation on a wind turbine foundation. Its technical solution includes multiple sets of safety protective frames set on the top of the upper anchor plate, a central protective net set on the safety protective frame for protecting the holes in the upper anchor plate, a movable suspension part set on the outer wall of the safety protective frame and corresponding to each safety protective frame, and an edge protection part rotatably set on the outer wall of the safety protective frame for protecting the edge of the upper anchor plate. The edge protection part also includes a storage cylinder and a safety net set at the end of a rotating rod. The rotating rod is provided with a limiting member and a snap-fit ​​member for limiting the safety net. The safety net combination between adjacent safety protective frames is in the shape of a ring and is set around the upper anchor plate. In this invention, the vertical rods on the safety protection frame are installed on the upper anchor plate and anchor column. A horizontal bar is installed between two vertical rods using a locking mechanism, providing stable support for multiple vertical rods. A central safety net is then installed on the horizontal rod to prevent workers from falling through the central hole in the upper anchor plate. Safety belts are then attached via a movable suspension part on the safety protection frame, avoiding the need to change the attachment position during movement and improving construction efficiency. Finally, the safety net is rolled up via a rotating support part on the safety protection frame to prevent construction tools from falling from heights and avoid safety hazards. While this invention provides protection for workers installing the upper anchor plate, the overall structure of the safety protection frame is complex and requires extensive additional construction work on the wind turbine foundation. After the upper anchor plate construction is completed, the safety protection frame must be disassembled before subsequent wind turbine foundation construction can proceed, which is detrimental to improving construction efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a wind turbine foundation construction safety auxiliary device with a simple structure that does not affect the construction cycle of the wind turbine foundation.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a safety auxiliary device for wind turbine foundation construction, including a foundation pit recessed below the horizontal ground and a wind turbine foundation fixed in the foundation pit, and also including two sets of safety rope support frames set opposite to each other on the horizontal ground, with a safety rope suspended above the wind turbine foundation connected between the two sets of safety rope support frames, and multiple locks slidably set on the safety rope.

[0006] As an improvement to the above solution, it also includes a reinforcement component located outside the safety rope support frame. The two ends of the safety rope are fixedly connected to the two reinforcement components respectively, and the part of the safety rope near the reinforcement component is supported on the top of the safety rope support frame.

[0007] As an improvement to the above solution: the reinforcement is a concrete anchor block cast on a horizontal ground, and the two ends of the safety rope are respectively anchored to two concrete anchor blocks.

[0008] As an improvement to the above solution: the reinforcement component is a prefabricated counterweight, and the two ends of the safety rope are respectively fixedly connected to two prefabricated counterweights.

[0009] As an improvement to the above solution: the safety rope support frame includes a bottom frame, a middle frame, a top frame, and columns. The bottom frame, middle frame, and top frame are all horizontally arranged rectangular frame structures and are arranged sequentially from bottom to top with multiple vertically arranged columns. The bottom frame and middle frame are fixedly connected to the columns. The upper part of the columns is provided with multiple adjustment holes arranged at intervals along their height direction. The top frame is detachably connected to the columns by bolts that are compatible with the adjustment holes. The top frame provides support for the safety rope.

[0010] As an improvement to the above solution: the safety rope support frame further includes a diagonal brace and an extension. The extension is fixedly connected to the bottom frame and extends horizontally toward the pit. The diagonal brace is fixedly connected between the upper part of the column and the extension.

[0011] As an improvement to the above solution: the bottom frame is fixed to the horizontal ground by nuts and pre-embedded screws fixed in the horizontal ground.

[0012] As an improvement to the above solution, it also includes a limiting groove set on the top frame. The limiting groove extends horizontally from the end of the top frame near the reinforcement to the end near the foundation pit. The limiting groove has openings at both ends, through which the safety rope passes. The openings at both ends of the limiting groove have downward-extending slopes.

[0013] The beneficial effects of this utility model are as follows: This utility model installs two sets of safety rope support frames around the foundation pit where the wind turbine foundation is located. The safety ropes are tightened and fixed by these two sets of support frames, suspending them above the wind turbine foundation. Construction workers can connect the safety ropes to safety belts via buckles for safety protection. This utility model has a simple structure and does not require altering the original structure of the wind turbine foundation, thus not affecting the normal construction of the foundation. Furthermore, since the safety ropes are suspended above the construction workers, they do not obstruct their movement or operations, providing good protection while ensuring the normal progress of construction work. Attached Figure Description

[0014] Figure 1 This is a front view of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a structural diagram of the safety rope support frame.

[0015] The markings in the diagram are as follows: 100-Horizontal ground, 200-Foundation pit, 300-Wind turbine foundation, 400-Safety rope support frame, 410-Bottom frame, 420-Middle frame, 430-Top frame, 440-Column, 450-Diagonal brace, 460-Extension, 500-Safety rope, 600-Locking buckle, 700-Reinforcement component. Detailed Implementation

[0016] To facilitate understanding of this utility model, the following description, in conjunction with the accompanying drawings, will provide further details.

[0017] In the description of this utility model, it should be noted that the terms "front", "rear", "left", "right", "up", "down", "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of description and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] like Figure 1 and Figure 2As shown, the wind turbine foundation construction safety auxiliary device disclosed in this utility model uses two sets of safety rope support frames 400 to support and fix the safety rope 500, allowing the safety rope 500 to suspend above the wind turbine foundation 300. Construction workers hook their safety belts onto the buckles 600, thus forming a reliable suspension support. The construction position is adjusted by sliding the buckles 600 on the safety rope 500, preventing workers from accidentally falling during movement or construction operations. In the event of an accident, this utility model can also limit the fall radius. When a worker falls, the safety rope 500 can immediately absorb force, controlling the fall distance to a small range and reducing the impact force, thereby reducing the risk of injury. When workers are performing high-altitude operations on the wind turbine foundation 300, the safety rope 500 and buckles 600 provide continuous protection as the workers move, ensuring the workers are in a safe state throughout the entire construction process.

[0019] Specifically, such as Figure 1 and Figure 2 As shown, this utility model sets a safety rope support frame 400 on a horizontal ground 100, while the wind turbine foundation 300 is set in a pit 200 recessed below the horizontal ground 100. That is, the safety rope support frame 400 is set on the periphery of the pit 200 and higher than the wind turbine foundation 300. Two sets of safety rope support frames 400 are arranged opposite each other, and at least one safety rope 500 is connected between the two sets of safety rope support frames 400. The safety rope 500 is supported by the safety rope support frame 400, so that the safety rope 500 is suspended above the wind turbine foundation 300. Multiple locking buckles 600 are installed on each safety rope 500; the safety rope 500 is tightened by a tensioner. This utility model uses a safety rope support frame 400 to support the safety rope 500, suspending the safety rope 500 above the wind turbine foundation 300 as a safety protection facility for construction workers. The technical solution of this utility model does not require changing the structure of the wind turbine foundation 300 itself, and the construction of the wind turbine foundation 300 can be carried out according to the established plan without affecting the normal construction cycle of the wind turbine foundation 300. Moreover, it is convenient for construction workers to operate. They only need to connect the safety rope on their body to the buckle 600. The safety rope 500 and the buckle 600 provide safety protection for the construction workers from above without hindering their movements or obstructing their view, thus not affecting their construction work.

[0020] Safety rope 500 uses high-strength steel strand and is regularly maintained. For daily maintenance, clean safety rope 500 with a neutral detergent and avoid using corrosive solvents such as gasoline and alcohol. Apply lubricant to the buckle 600 regularly to prevent rust and check whether it can slide smoothly along safety rope 500. If the steel strand of safety rope 500 has broken strands, a diameter reduction of more than 10%, a diameter reduction of more than 7% due to wear, or pitting, rust peeling, large area of ​​oxide layer, cage-like distortion, wavy deformation, kinking, or flattening, it must be scrapped immediately and replaced with new steel strand.

[0021] Safety rope 500 can be directly fixed to safety rope support frame 400, or as... Figure 1 and Figure 2 As shown, reinforcement members 700 are added to secure the safety rope 500. The reinforcement members 700 are located on the outside of the safety rope support frame 400, and each end of the safety rope 500 is fixedly connected to one of the two reinforcement members 700. The safety rope 500 passes through the top of the safety rope support frame 400, so that the portion of the safety rope 500 near the reinforcement members 700 is supported on the top of the safety rope support frame 400. The two reinforcement members 700 tighten the safety rope 500 from both ends, and then the two sets of safety rope support frames 400 push the safety rope 500 upwards to form support, thus tightening the safety rope 500. The reinforcement component 700 can be implemented in various ways. For example, the reinforcement component 700 can be a concrete anchor block directly poured on the horizontal ground 100, and the two ends of the safety rope 500 can be anchored to the two concrete anchor blocks respectively. Another example is that the reinforcement component 700 can be a prefabricated counterweight component on the construction site, such as waste stone, steel and other materials, and the two ends of the safety rope 500 can be fixedly connected to the two prefabricated counterweight components respectively, which can realize the use of local materials to reduce construction costs.

[0022] Specifically, such as Figure 3As shown, the safety rope support frame 400 used in this utility model is a multi-layer frame structure, including a bottom frame 410, a middle frame 420, a top frame 430, and columns 440. The bottom frame 410, middle frame 420, and top frame 430 all adopt a rectangular frame structure. Multiple columns 440 are vertically fixed to the horizontal ground 100. The bottom frame 410, middle frame 420, and top frame 430 are then arranged sequentially from bottom to top at intervals and fixedly connected to the columns 440 to form a multi-layer frame structure. Furthermore, the number of middle frames 420 can be further increased according to actual construction needs. The bottom frame 410, middle frame 420, top frame 430, and columns 440 all adopt a steel structure to improve the overall strength and stability of the safety rope support frame 400. To adjust the suspension height of the safety rope 500, this invention features an adjustable top frame 430, while the bottom frame 410 and middle frame 420 are directly welded to the column 440. Multiple adjustment holes are provided on the upper part of the column 440, evenly spaced along the height of the column 400. Corresponding connection holes are provided on the top frame 430. Bolts passing through the adjustment holes and connection holes connect and fix the top frame 430 to the column 440. Since the top frame 430 directly supports the safety rope 500, the suspension height of the safety rope 500 can be adjusted by adjusting the installation height of the top frame 430 on the column 440.

[0023] Furthermore, such as Figure 3 As shown, to improve the stability of the safety rope support frame 400, this invention adds a diagonal brace 450 and an extension 460 to the safety rope support frame 400. The extension 460 is fixedly connected to the bottom frame 410 and extends horizontally toward the pit 200. The diagonal brace 450 is fixedly connected between the upper part of the column 440 and the extension 460. The diagonal brace 450 supports and reinforces the part of the safety rope support frame 400 near the pit 200, and corresponds to the reinforcement 700 located on the outside of the safety rope support frame 400, so that the forces on the inner and outer sides of the safety rope support frame 400 are more balanced. The extension 460 and the diagonal brace 450 are made of the same steel material as the safety rope support frame 400. The diagonal brace 450 can be directly welded and fixed to the safety rope support frame 400 and the extension 460. The extension 460 can be welded and fixed to the bottom frame 410, or it can be integrated with the bottom frame 410. The bottom frame 410 is fixed to the horizontal ground 100 by nuts and pre-embedded screws fixed in the horizontal ground 100, which not only improves the overall stability of the safety rope support frame 400, but also facilitates the assembly and disassembly of the safety rope support frame 400.

[0024] Furthermore, to further ensure the stability of the safety rope 500 under stress and prevent it from shifting, this invention provides a limiting component on the top frame 430 to limit the safety rope 500. Specifically, the limiting component can be a limiting groove, extending horizontally from the end of the top frame 430 near the reinforcing member 700 towards the end near the pit 200. The limiting groove has openings at both ends, through which the safety rope 500 passes, thus limiting its movement and preventing it from shifting. When using a limiting groove, downward-extending slopes can also be provided at the openings at both ends to reduce friction between the safety rope 500 and the openings, thus reducing wear on the safety rope 500. Alternatively, the limiting component can be a snap-on type, where multiple snaps fixed to the top frame 430 securely fasten the safety rope 500.

Claims

1. A safety auxiliary device for wind turbine foundation construction, comprising a foundation pit (200) recessed below a horizontal ground level (100) and a wind turbine foundation (300) fixed within the foundation pit (200), characterized in that: It also includes two sets of safety rope support frames (400) set opposite each other on the horizontal ground (100), and a safety rope (500) suspended above the wind turbine foundation (300) is connected between the two sets of safety rope support frames (400). Multiple buckles (600) are slidably set on the safety rope (500).

2. The wind turbine foundation construction safety auxiliary device as described in claim 1, characterized in that: It also includes a reinforcement member (700) located outside the safety rope support frame (400), with the two ends of the safety rope (500) fixedly connected to the two reinforcement members (700) respectively, and the part of the safety rope (500) near the reinforcement member (700) supported on the top of the safety rope support frame (400).

3. The wind turbine foundation construction safety auxiliary device as described in claim 2, characterized in that: The reinforcement component (700) is a concrete anchor block poured on a horizontal ground (100), and the two ends of the safety rope (500) are respectively anchored to the two concrete anchor blocks.

4. The wind turbine foundation construction safety auxiliary device as described in claim 2, characterized in that: The reinforcing component (700) is a finished counterweight, and the two ends of the safety rope (500) are fixedly connected to the two finished counterweights respectively.

5. The wind turbine foundation construction safety auxiliary device as described in claim 2, characterized in that: The safety rope support frame (400) includes a bottom frame (410), a middle frame (420), a top frame (430), and a column (440). The bottom frame (410), the middle frame (420), and the top frame (430) are all horizontally arranged rectangular frame structures and are arranged sequentially from bottom to top by multiple vertically arranged columns (440). The bottom frame (410) and the middle frame (420) are fixedly connected to the columns (440). The upper part of the column (440) is provided with multiple adjustment holes arranged at intervals along its height direction. The top frame (430) is detachably connected to the column (440) by bolts that are compatible with the adjustment holes. The top frame (430) provides support for the safety rope (500).

6. The wind turbine foundation construction safety auxiliary device as described in claim 5, characterized in that: The safety rope support frame (400) also includes a diagonal brace (450) and an extension (460). The extension (460) is fixedly connected to the bottom frame (410) and extends horizontally toward the pit (200). The diagonal brace (450) is fixedly connected between the upper part of the column (440) and the extension (460).

7. The wind turbine foundation construction safety auxiliary device as described in claim 5, characterized in that: The bottom frame (410) is fixed to the horizontal ground (100) by nuts and pre-embedded screws fixed in the horizontal ground (100).

8. The wind turbine foundation construction safety auxiliary device as described in claim 5, characterized in that: It also includes a limiting groove set on the top frame (430), which extends horizontally from one end of the top frame (430) near the reinforcement (700) toward the end near the pit (200), with openings at both ends of the limiting groove, through which a safety rope (500) passes, and with downward-extending slopes at the openings at both ends of the limiting groove.

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