An angle-adaptive wind power foundation high-altitude work safety belt tying device and a construction method thereof

Abstract

The application discloses an angle-adaptive wind power foundation high-altitude operation safety belt tying device and a construction method thereof, and belongs to the field of safety protection devices for high-altitude operation. The device comprises a center support, a base and a fixing device. The base is composed of a cross-shaped fixing part arranged in an anchor plate on a wind power foundation and an adjustable part connected with the fixing part, and the adjustable part is fixed to the upper anchor plate through a U-shaped clamp at the other end. The center support comprises a stand, a support arm and an inclined support, and the support arm is provided with lifting rings at two ends. The length of the adjustable part can be slidably adjusted by pressing an adjusting button on the adjustable part, so that the device can be adapted to upper anchor plates with different diameters and the quick installation and angle adaptation are realized. The device solves the problems of instability, frequent adjustment and low efficiency of a conventional safety belt tying point, provides stable and reliable high-altitude operation safety protection with strong adjustability, has a stable structure, is convenient to install, and significantly improves construction safety and efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of safety equipment for wind power foundation construction, and in particular, it relates to an angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations and its construction method. Background Technology

[0002] Reinforcement binding for wind turbine foundations is a crucial component of wind turbine structural construction. This work often involves working at heights, making the use of safety harnesses a vital safety measure. Traditional methods for securing safety harnesses include installing anchor rings around the reinforcing bars to create a horizontal lifeline, using G-clamps, or erecting scaffolding poles. However, the unique structure of wind turbine foundations makes it impossible to establish a horizontal lifeline during the reinforcement construction phase. Even if scaffolding is erected outside the foundation to create a horizontal lifeline, the excessive deflection in the middle would not comply with the regulations for high-hanging, low-use safety harnesses. Furthermore, there are no reliable fixing points for G-clamps at high points on the work surface, and this method requires frequent disassembly and relocation to adapt to frequent changes in the work area during wind turbine foundation reinforcement construction, posing a certain degree of danger. Summary of the Invention

[0003] The purpose of this invention is to provide an angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations and its construction method, in order to solve the technical problems of unstable safety belt fastening points, frequent adjustments, and low construction efficiency in traditional technologies.

[0004] To achieve the above objectives, the present invention adopts the following technical solution.

[0005] An angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations includes a central support, a base, and a fixing device. An annular upper anchor plate is installed on the top of the wind power foundation. The base includes a fixed portion and an adjustable portion. The fixed portion has a cross-shaped structure and is located inside the upper anchor plate, with a gap between the end of the fixed portion and the upper anchor plate. The adjustable portion connects the fixed portion and the upper anchor plate, with one end adjustablely connected to the fixed portion and the other end connected to the upper anchor plate via the fixing device. The central support is installed at the top center of the fixed portion and includes a support arm, a column, and diagonal braces. The column is connected to the fixed portion. The support arm is located on top of the column and forms a T-shape with the column. Lifting rings are installed at the bottom and near both ends of the support arm. The diagonal braces support the column between the column and the support arms on both sides of the column.

[0006] Preferably, the fixed part is welded from a rectangular cross-section tube, and pre-drilled holes are provided at intervals near each end of the fixed part; the adjustable part is made of a rectangular cross-section tube, and an adjustment button is provided on the side wall of one end of the adjustable part; the end of the adjustable part with the adjustment button is inserted into the fixed part, and the adjustment button extends into the corresponding pre-drilled hole.

[0007] Preferably, the adjustable part is provided with a first ear plate at the end outside the fixed part; the fixing device includes a U-shaped clamp and a fastening bolt; a connecting short rod is provided on the back of the U-shaped clamp; a second ear plate is provided at the end of the connecting short rod; the second ear plate is connected to the first ear plate by the fastening bolt; the U-shaped clamp is clamped on the upper anchor plate, and a tightening bolt is provided on the bottom plate of the U-shaped clamp; the tightening bolt passes through the bottom plate of the U-shaped clamp, and the upper end of the tightening bolt abuts against the bottom surface of the upper anchor plate.

[0008] Preferably, the U-shaped clamp has an anti-slip rubber pad layer on its inner side.

[0009] Preferably, the lifting rings at both ends of the support arm are installed at a height 1.2-1.5m higher than the working surface.

[0010] Preferably, the adjustable stroke of the adjustable part is 0.8-1.5m.

[0011] Preferably, the base is provided with a foldable support leg at its bottom; the foldable support leg is inserted into the ground or anchored in the foundation structure after being unfolded, so as to improve the stability of the device in strong wind environment.

[0012] Preferably, the adjustment button includes a spring, a telescopic rod, and a pressing cap; the adjustable part is provided with a blind hole; the spring is installed in the blind hole; the telescopic rod is inserted into the spring, and when the spring is in its natural state, the outer end of the telescopic rod extends beyond the blind hole; limit rods are provided on both sides of the telescopic rod near the outer end; the pressing cap is installed on the outer end of the telescopic rod.

[0013] A construction method for an angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations includes the following steps.

[0014] Step 1, Positioning and welding of the fixing part: Place the cross-shaped fixing part horizontally inside the upper anchor plate, ensuring that the distance between its end and the inner wall of the upper anchor plate is uniform.

[0015] Step 2: Press the adjustment button to make the telescopic rod snap into the reserved hole, insert one end of the adjustable part into the end of the fixed part, and complete the initial length adjustment.

[0016] Step 3: Connect the fixing device to the upper anchor plate.

[0017] Step 4, Assembly of the support arm and column: Weld the column vertically to the top center of the fixed part, ensuring that the verticality deviation of the column is ≤1°; Weld the diagonal braces symmetrically to the column and the two sides of the support arm to form a stable triangular structure.

[0018] Step 5, Positioning and welding of the lifting ring: Weld the lifting ring to the end of the support arm.

[0019] Step 6: Press the adjustment button to release the telescopic rod, slide the adjustable part to the target length, and release the button to lock it.

[0020] Step 7: Connect the fixing device to the adjustable part.

[0021] Step 8, Load and Safety Test: Suspend simulated load test to test the bearing capacity of the lifting ring, observe that the support arm has no deformation and the welding points have no cracks, and the construction is now complete.

[0022] Compared with the prior art, the present invention has the following features and beneficial effects.

[0023] 1. This invention uses a combination structure of a cross-shaped base and an adjustable part, combined with a U-shaped clamp and a tightening bolt to firmly fix it to the upper anchor plate, effectively avoiding the problems of excessive deflection in the middle of the traditional lifeline or unstable fixing point; at the same time, the central support adopts a triangular diagonal brace structure, which enhances the overall rigidity and anti-overturning ability; in addition, this invention welds a lifting ring at the front end of the boom as a safety belt attachment point, which is firm and reliable as a whole and complies with the regulations of high hanging and low use of safety belts, so that the safety belt can play a real role in construction.

[0024] 2. The adjustable part of this invention adopts a spring-button telescopic structure, which can quickly adjust the length to adapt to anchor plates on wind turbine foundations of different diameters. This device can be flexibly adjusted according to changes in the work site, without the need for frequent disassembly and relocation, thus improving construction adaptability and efficiency. Furthermore, all components of this invention can be prefabricated in advance and assembled on-site, requiring no extensive preparatory work, simplifying implementation and saving construction time.

[0025] 3. This invention uses a welded lifting ring at the front end of the central support boom as the safety belt attachment point, ensuring overall sturdiness and reliability. It complies with the regulations for high-mounted, low-use safety belts, allowing them to effectively function during construction. Furthermore, once the safety rope is attached, it requires no frequent adjustments due to changes in the work surface, simplifying its use. All components can be prefabricated and assembled on-site. Extensive pre-construction work is unnecessary, making implementation convenient and saving time.

[0026] 4. The device of the present invention adopts a modular design. The main structure is connected by welding and bolts, which makes on-site assembly simple and quick. The main body of the device uses conventional steel and standard parts, resulting in low manufacturing cost, good durability, and the ability to be disassembled and reused multiple times for different wind power foundation projects. It has good economic benefits and promotional value.

[0027] 5. This invention effectively solves the problems of unstable safety belt anchoring points, frequent adjustments, and low construction efficiency in high-altitude operations of wind power foundation rebar tying, and has significant safety, adaptability, and economy. Attached Figure Description

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] Figure 1 This is a schematic diagram of the structure of the angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations according to the present invention.

[0030] Figure 2 This is a schematic diagram of the central support structure in this invention.

[0031] Figure 3 This is a structural diagram of the fixed and adjustable parts of the base in this invention.

[0032] Figure 4 This is a schematic diagram of the connection structure between the base and the wind power foundation in this invention.

[0033] Figure 5 This is a schematic diagram of the adjustment button in this invention.

[0034] Reference numerals: 1 - Central support, 1.1 - Support arm, 1.2 - Column, 1.3 - Diagonal brace, 2 - Base, 2.1 - Fixed part, 2.2 - Adjustable part, 3 - Fixing device, 3.1 - U-shaped clamp, 3.2 - Tightening bolt, 4 - Wind power foundation, 5 - Upper anchor plate, 6 - Lifting ring, 7 - First end plate, 8 - Reserved hole, 9 - Adjustment button, 9.1 - Spring, 9.2 - Telescopic rod, 9.3 - Press cap, 10 - First ear plate, 11 - Connecting short rod, 12 - Second ear plate, 13 - Fastening bolt, 14 - Anti-slip rubber pad, 15 - Foldable support leg, 16 - Blind hole, 17 - Limiting rod, 18 - Second end plate, 19 - Annular limiting plate. Detailed Implementation

[0035] like Figure 1-5As shown, this angle-adaptive safety belt fastening device for high-altitude operations on wind turbine foundations includes a central support 1, a base 2, and a fixing device 3. An annular upper anchor plate 5 is installed on the top of the wind turbine foundation 4. The base 2 includes a fixed part 2.1 and an adjustable part 2.2. The fixed part 2.1 has a cross-shaped structure and is located inside the upper anchor plate 5, with a gap between the end of the fixed part 2.1 and the upper anchor plate 5. The adjustable part 2.2 connects the fixed part 2.1 and the upper anchor plate 5, and one end of the adjustable part 2.2 is tunably connected to the fixed part 2.1. The other end of .2 is connected to the upper anchor plate 5 via a fixing device 3; the central support 1 is installed at the top center of the fixed part 2.1, including a support arm 1.1, a column 1.2 and a diagonal brace 1.3; the column 1.2 is connected to the fixed part 2.1; the support arm 1.1 is set at the top of the column 1.2 and forms a T-shaped structure with the column 1.2; lifting rings 6 are respectively set at the bottom of the support arm 1.1 and at both ends; the lifting rings 6 are welded to the ends of the support arm 1.1, and the diagonal brace 1.3 is supported between the column 1.2 and the support arms 1.1 on both sides of the column.

[0036] In this embodiment, the fixed part 2.1 is welded from a rectangular cross-section tube, and pre-drilled holes 8 are provided at intervals near each end of the fixed part 2.1; the adjustable part 2.2 is welded from a rectangular cross-section tube, and an adjustment button 9 is provided on one side wall of the adjustable part 2.2, and a first end plate 7 is provided at the other end of the adjustable part 2.2; the end of the adjustable part 2.2 with the adjustment button 9 is inserted into the fixed part 2.1, and the adjustment button 9 extends into the corresponding pre-drilled hole 8.

[0037] In this embodiment, the adjustable part 2.2 is provided with a first ear plate 10 at its end outside the fixed part 2.1; the first ear plate 10 is connected to the first end plate 7; the fixing device 3 includes a U-shaped clamp 3.1 and a fastening bolt 13; a connecting short rod 11 is provided on the back of the U-shaped clamp 3.1, and the connecting short rod 11 is made of rectangular tube; a second end plate 18 is provided at the end of the connecting short rod 11; a second ear plate 12 is provided on the second end plate 18; the second ear plate 12 is connected to the first ear plate 10 by the fastening bolt 13; the U-shaped clamp 3.1 is clamped on the upper anchor plate 5, and a tightening bolt 3.2 is provided on the bottom plate of the U-shaped clamp 3.1; the tightening bolt 3.2 passes through the bottom plate of the U-shaped clamp 3.1, and the upper end of the tightening bolt 3.2 abuts against the bottom surface of the upper anchor plate 5.

[0038] In this embodiment, the U-shaped clamp 3.1 has an anti-slip rubber pad layer 14 on its inner side.

[0039] In this embodiment, the lifting rings 6 at both ends of the support arm 1.1 are installed at a height 1.2-1.5m higher than the working surface.

[0040] In this embodiment, the adjustment stroke of the adjustable part 2.2 is 0.8-1.5m.

[0041] In this embodiment, the bottom of the base 2 is provided with a foldable support leg 15; after the foldable support leg 15 is unfolded, it is inserted into the ground or anchored in the foundation structure to improve the stability of the device in strong wind environment.

[0042] In this embodiment, the adjustment button 9 includes a spring 9.1, a telescopic rod 9.2, and a pressing cap 9.3; a blind hole 16 is provided on the adjustable part 2.2; the spring 9.1 is installed in the blind hole 16; the telescopic rod 9.2 is inserted into the spring 9.1, and when the spring 9.1 is in its natural state, the outer end of the telescopic rod 9.2 extends beyond the blind hole 16; limit rods 17 are provided on both sides of the telescopic rod 9.2 near its outer end; the limit rods 17 are inserted between adjacent spring coils of the spring 9.1, and the limit rods 17 are horizontally L-shaped to prevent the telescopic rod 9.2 from moving too much relative to the spring 9.1 when pressed; the pressing cap 9.3 is installed on the outer end of the telescopic rod 9.2; an annular limiting plate 19 is provided on the opposite side of the inner wall of the blind hole 16, at the opening of the blind hole; the annular limiting plate 19 prevents the telescopic rod 9.2 from slipping.

[0043] In this embodiment, the support arm 1.1 is made of Φ48.3×3.2 steel pipe, the column 1.2 is made of Φ100×5 steel pipe, and the diagonal brace 1.3 is made of Φ25-32 steel bar; the lifting ring 6 is made of round steel; the fixed part 2.1 is made of 250×250×10mm rectangular tube; the adjustable part 2.2 is made of 200×200×10mm rectangular tube; the first ear plate 10, the second ear plate 12, and the connecting plate are made of 10-20mm thick steel plate; the crossbeam and the U-shaped clamp are made of 10-20mm steel plate bent.

[0044] The construction method for this angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations includes the following steps.

[0045] Step 1, Positioning and welding of the fixing part: Place the cross-shaped fixing part horizontally inside the upper anchor plate 5, ensuring that the distance between its end and the inner wall of the upper anchor plate 5 is uniform.

[0046] Step 2: Press the adjustment button 9 to engage the telescopic rod with the pre-drilled hole, and insert one end of the adjustable part 2.2 into the end of the fixed part 2.1 to complete the initial length adjustment.

[0047] Step 3: Connect the fixing device 3 to the upper anchor plate 5; connect the outer end of the adjustable part 2.2 to the upper anchor plate 5 through the U-shaped clamp 3.1: clamp the U-shaped clamp 3.1 on the edge of the upper anchor plate 5, with the inner anti-slip rubber pad tightly attached to the surface of the upper anchor plate 5; tighten the top bolt 3.2 so that the bottom plate of the U-shaped clamp 3.1 fits against the bottom surface of the upper anchor plate 5; unfold the base 2, which is equipped with a foldable support leg 15, insert it into the ground or anchor it in the foundation structure embedded parts to improve stability in strong wind environments.

[0048] Step 4, Assembly of the support arm 1.1 and the column 1.2: Weld the column vertically to the top center of the fixed part, ensuring that the verticality deviation of the column is ≤1°; The support arm and the column are T-shaped welded, and the diagonal brace 1.3 is symmetrically welded to both sides of the column and the arm to form a stable triangular structure.

[0049] Step 5, Positioning and welding of lifting ring 6: Weld lifting ring 6 at the end of the support boom 1.1, ensuring that the center of the lifting ring is 1.2-1.5m above the working surface. After welding, grind the weld to eliminate stress concentration.

[0050] Step 6, Angle Adaptive Adjustment: Press the adjustment button 9 to release the telescopic rod 9.2, slide the adjustable part to the target length of 0.8-1.5m, and release the button to complete the locking; ensure that the lifting ring is always directly above the operator by using the clamping angle of the U-shaped clamp 3.1 and the upper anchor plate 5.

[0051] Step 7: Connect the fixing device 3 to the adjustable part 2.2, and connect the first ear plate 10 and the second ear plate 12 by fastening bolt 13.

[0052] Step 8, Load and Safety Test: Suspend simulated load test to test the bearing capacity of the lifting ring, observe that the support boom 1.1 has no deformation and the welding points have no cracks, and the construction is now complete.

[0053] Before construction in step one, prepare for the installation of the equipment, including material and tool inspection and safety pre-assessment.

[0054] Among them, material and tool inspection: verify the integrity of the device components, including the central support 1, base 2 and fixing device 3, etc., confirm that the elasticity of the adjustment button 9 is normal and the reserved hole is not deformed; prepare welding equipment, torque wrench, level and other tools, and ensure that the surface of the anchor plate 5 on the wind power foundation is clean and free of rust.

[0055] Safety pre-assessment: Based on the working surface height of ≥2 meters and wind conditions, confirm that the installation height of the lifting ring meets the principle of "high hanging and low use"; check whether the adjustment range is suitable for the diameter of the wind power foundation.

[0056] The structure consists of a central support 1, a base 2, and a fixing device 3. The central support 1 has a lifting ring 6 welded to the end of its upper arm 1.1 for securing the safety rope; the column 1.2 is welded to the base 2; the base 2 is connected to the fixing device 3 using fastening bolts 13; and the fixing device 3 is fixed to the upper anchor plate 5 of the wind turbine foundation using U-shaped clamps 3.1 and tightening bolts 3.2.

[0057] The upper end of the column 1.2 is welded to the middle of the support arm 1.1, and a diagonal brace 1.3 is welded between the support arm 1.1 and the column 1.2 to strengthen the central support structure. A lifting ring 6 is welded to the end of the support arm 1.1; the bottom of the column 1.2 is welded to the base 2.

[0058] The above embodiments are not exhaustive examples of specific implementation methods, and other embodiments are also possible. The purpose of the above embodiments is to illustrate the present invention, rather than to limit the scope of protection of the present invention. All applications derived from simple variations of the present invention fall within the scope of protection of the present invention.

Claims

1. An angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations, characterized in that: It includes a central support (1), a base (2), and a fixing device (3); an annular upper anchor plate (5) is provided on the top of the wind turbine foundation (4); the base (2) includes a fixed part (2.1) and an adjustable part (2.2); the fixed part (2.1) has a cross-shaped structure and is set inside the upper anchor plate (5), and there is a gap between the end of the fixed part (2.1) and the upper anchor plate (5); the adjustable part (2.2) is connected between the fixed part (2.1) and the upper anchor plate (5), and one end of the adjustable part (2.2) is adjustablely connected to the fixed part (2.1), and the adjustable part (2.2) has... The other end is connected to the upper anchor plate (5) via a fixing device (3); the central support (1) is installed at the top middle of the fixed part (2.1) and includes a support arm (1.1), a column (1.2) and a diagonal brace (1.3); the column (1.2) is connected to the fixed part (2.1); the support arm (1.1) is set at the top of the column (1.2) and forms a T-shaped structure with the column (1.2); a lifting ring (6) is set at the bottom of the support arm (1.1) and at both ends; the diagonal brace (1.3) is supported between the column (1.2) and the support arms (1.1) on both sides of the column.

2. The angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations according to claim 1, characterized in that: The fixed part (2.1) is welded from a rectangular cross-section tube, and a reserved hole (8) is provided at intervals near each end of the fixed part (2.1); the adjustable part (2.2) is made of a rectangular cross-section tube, and an adjustment button (9) is provided on one side wall of the adjustable part (2.2); the end of the adjustable part (2.2) with the adjustment button (9) is inserted into the fixed part (2.1), and the adjustment button (9) extends into the corresponding reserved hole (8).

3. The angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations according to claim 1, characterized in that: The adjustable part (2.2) is provided with a first ear plate (10) at the end outside the fixed part (2.1); the fixing device (3) includes a U-shaped clamp (3.1) and a fastening bolt (13); a connecting short rod (11) is provided on the back of the U-shaped clamp (3.1); a second ear plate (12) is provided at the end of the connecting short rod (11); the second ear plate (12) is connected to the first ear plate (10) by the fastening bolt (13); the U-shaped clamp (3.1) is clamped on the upper anchor plate (5), and a tightening bolt (3.2) is provided on the bottom plate of the U-shaped clamp (3.1); the tightening bolt (3.2) passes through the bottom plate of the U-shaped clamp (3.1), and the upper end of the tightening bolt (3.2) abuts against the bottom surface of the upper anchor plate (5).

4. The angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations according to claim 3, characterized in that: The U-shaped clamp (3.1) has an anti-slip rubber pad (14) on its inner side.

5. The angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations according to claim 1, characterized in that: The lifting rings (6) at both ends of the support arm (1.1) are installed at a height 1.2-1.5m higher than the working surface.

6. The angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations according to claim 1, characterized in that: The adjustable part (2.2) has an adjustment stroke of 0.8-1.5m.

7. The angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations according to claim 1, characterized in that: The base (2) is provided with a foldable support leg (15) at its bottom; the foldable support leg (15) can be inserted into the ground or anchored in the foundation structure after being unfolded, so as to improve the stability of the device in strong wind environment.

8. The angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations according to claim 2, characterized in that: The adjustment button (9) includes a spring (9.1), a telescopic rod (9.2), and a pressing cap (9.3); a blind hole (16) is provided on the adjustable part (2.2); the spring (9.1) is installed in the blind hole (16); the telescopic rod (9.2) is inserted into the spring (9.1), and when the spring (9.1) is in its natural state, the outer end of the telescopic rod (9.2) extends beyond the blind hole (16); limit rods (17) are provided on both sides of the telescopic rod (9.2) near the outer end; the pressing cap (9.3) is installed on the outer end of the telescopic rod (9.2).

9. A construction method for an angle-adaptive safety belt fastening device for high-altitude operations on wind power foundations as described in any one of claims 1-8, characterized in that, The steps include the following: Step 1, Positioning and welding of the fixing part (2.1): Place the cross-shaped fixing part horizontally inside the upper anchor plate (5) to ensure that the distance between its end and the inner wall of the upper anchor plate (5) is uniform; Step 2: Press the adjustment button (9) to make the telescopic rod (9.2) snap into the reserved hole (8), insert one end of the adjustable part (2.2) into the end of the fixed part (2.1) to complete the initial length adjustment; Step 3: Connect the fixing device (3) to the upper anchor plate (5); Step 4, Assembly of the support arm (1.1) and the column (1.2): Weld the column (1.2) vertically to the top center of the fixed part (2.1) to ensure that the verticality deviation of the column (1.2) is ≤1°; Weld the diagonal brace (1.3) symmetrically to the column (2.1) and the support arm (1.1) to form a triangular stable structure; Step 5, Positioning and welding of the lifting ring (6): Weld the lifting ring (6) to the end of the support arm (1.1); Step 6: Press the adjustment button (9) to release the telescopic rod (9.2), slide the adjustable part (2.2) to the target length, and release the button to complete the locking. Step 7: Connect the fixing device (3) to the adjustable part (2.2); Step 8, Load and Safety Test: Suspend simulated load test to test the bearing capacity of the lifting ring, observe that the support arm has no deformation and the welding points have no cracks, and the construction is now complete.

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