Safety belt and safety line suspension device for transformers

Abstract

The application discloses a safety belt and safety rope suspension device for a transformer, which comprises a U-shaped frame, the upper end of the U-shaped frame is connected with a supporting shaft, at least one pair of hanging rings are rotationally connected to the supporting shaft, and at least one fastening device is arranged at the lower end of the U-shaped frame. The device can be conveniently and firmly fixed at the flange edge of a 35kV transformer platform, and the personal safety of workers working at a high position of the transformer platform is ensured.

Description

Technical Field

[0001] This invention relates to a safety belt hanger for high-altitude power maintenance operations, specifically to a safety belt and safety rope suspension device installed at the edge of a 35kV transformer platform flange. Background Technology

[0002] Transformers are currently the main power equipment in substations. To ensure the safe and stable operation of the power system, maintenance teams conduct multiple maintenance tasks on transformers every year. When performing maintenance work at the flange edge of an outdoor 35kV transformer platform in a substation, the limited space at the top of the transformer and the complex, crisscrossing structure make it difficult to find a suitable load-bearing area to install a safety belt and safety rope suspension bracket. Maintenance personnel often attach safety belts to the equipment frame or mounting base, or use safety belt brackets that do not meet specifications. This violates relevant regulations and poses safety hazards to workers. Due to improper use, safety belts or safety ropes are easily tangled, causing significant personal safety risks to workers at heights. Therefore, to ensure the personal safety of workers at heights in safe production, it is essential to develop a safety belt and safety rope suspension device that is easy to install, secure, reliable, and cost-effective. Summary of the Invention

[0003] To address the problems in the prior art, this invention discloses a safety belt and safety rope suspension device for transformers. This device can be conveniently and securely fixed to the edge of the flange of a 35kV transformer platform, ensuring the personal safety of personnel working at heights on the transformer platform.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: A safety belt and safety rope suspension device for transformers includes a U-shaped frame, a support shaft connected to the upper end of the U-shaped frame, at least a pair of hanging rings rotatably connected to the support shaft, and at least one fastening device provided at the lower end of the U-shaped frame.

[0005] Preferably, the fastening device includes a clamping shaft, which is threadedly connected to the U-shaped frame, and a suction cup is provided at the upper end of the clamping shaft.

[0006] Preferably, the upper end of the clamping shaft protrudes into the interior of the suction cup, and the protruding part connects the clamping shaft to the suction cup by a spring retaining ring.

[0007] Preferably, an anti-loosening nut is provided on the outside of the tightening shaft at the lower end of the U-shaped frame.

[0008] Preferably, a sliding sleeve is fitted around the support shaft, the sliding sleeve is slidably connected to the support shaft in the vertical direction, a temporary positioning device is provided between the sliding sleeve and the support shaft, and the hanging ring is rotatably connected to the sliding sleeve.

[0009] Preferably, the temporary positioning device includes a T-block, and the side of the support shaft is provided with a T-slot for slidingly mounting the T-block, and the T-block is temporarily positioned with screws in the T-slot.

[0010] Preferably, the upper end of the U-shaped frame is connected to a support base, and the support shaft is detachably inserted into the support base.

[0011] Preferably, the support shaft and the support base are fixed to each other by at least two perforated pins.

[0012] The beneficial effects of this invention are as follows: This invention uses a U-shaped frame to securely and reliably temporarily attach the entire device to the edge of the flange of a 35kV transformer platform, and provides a sliding sleeve that can slide up and down along the support shaft. The hanging ring is rotatably installed on the outside of the sliding sleeve, which allows workers at heights to work conveniently while ensuring their personal safety. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the planar structure of the present invention; Figure 5 for Figure 4 Sectional view of AA; Figure 6 for Figure 4 Enlarged view of B in the middle; In the diagram: 1. Flange edge, 2. U-shaped frame, 3. Support base, 4. Support shaft, 5. Support ring, 6. Hanging ring, 7. Sliding sleeve, 8. Handle, 9. Tightening shaft, 10. Suction cup, 11. T-block, 12. Screw, 13. Spring retaining ring, 14. Anti-loosening nut. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0016] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0017] Please see Figure 1-6 This invention discloses a safety belt and safety rope suspension device for transformers. It cleverly utilizes the flat portion of the flange edge 1 of a 35kV transformer platform, designing a U-shaped frame 2 that snaps into the flange edge 1. The U-shaped frame 2 ensures that the safety belt and safety rope suspension device can be fixed at the flange edge 1 of the 35kV transformer platform with maximum force-bearing area. A support base 3 is welded to the upper end of the U-shaped frame 2, with a height greater than 70cm. A support shaft 4 is fixed inside the support base 3 using pins or set screws. The connection and fixation between the support base 3 and the support shaft 4 provides radial support to the lower part of the support shaft 4, offering a large and stable support force capable of withstanding normal working tensile forces and short-term impact tensile forces, while ensuring that the deformation of the connection between the hanging ring 6 and the support shaft 4 meets the specifications. Furthermore, the support shaft 4 and the support base 3 are plug-in structures, temporarily fixed with pins or set screws, and the modular combination facilitates disassembly, assembly, maintenance, and replacement.

[0018] To facilitate quick and easy disassembly and replacement of the U-shaped frame 2, and to ensure that the U-shaped frame 2 of the safety belt and safety rope suspension device can be securely and reliably fixed at the flange edge 1 of the 35kV transformer platform, a fastening device is installed at the bottom of the U-shaped frame 2. This fastening device can be a set installed at the center of the U-shaped frame 2, two sets symmetrically arranged about the center line of the U-shaped frame 2, or three or more sets arranged in a triangular or polygonal pattern at the bottom of the U-shaped frame 2. The fastening device includes a clamping shaft 9, a suction cup 10, and an anti-loosening nut 14. At least two through-hole threaded holes are machined on the base plate of the U-shaped frame 2. The threaded holes are internally connected to a threaded clamping shaft 9 on the outer side. A circumferential retaining ring groove is machined on the upper end of the clamping shaft 9. After the upper end of the clamping shaft 9 is inserted into the bottom of the suction cup 10, the upper end of the clamping shaft 9 protrudes from the inner cavity of the suction cup 10. A spring retaining ring 13 is installed in the retaining ring groove, thus stably and firmly installing the suction cup onto the upper end of the clamping shaft 9 above the base plate of the U-shaped frame 2. Tightening the clamping shaft 9 along the threaded hole in the base plate causes the suction cup 10 to firmly adhere to and press against the lower surface of the transformer flange edge 1 under the upward thrust of the clamping shaft 9, effectively preventing the U-shaped frame 2 from slipping. To prevent the connection between the clamping shaft 9 and the U-shaped frame 2 from loosening, an anti-loosening nut 14 is installed on the outside of the clamping shaft 9 below the base plate. Using this technical solution, the U-shaped frame 2 can be firmly and reliably fixed at the flange edge 1 of the 35kV transformer platform, facilitating work for personnel at height while ensuring their personal safety. To facilitate the operation of the clamping shaft 9, a horizontal handle 8 is installed at the lower end of the clamping shaft 9.

[0019] Because workers move on the transformer during construction, the adjustable length of the safety belt is limited and it is prone to getting tangled on the support shaft 4 during worker movement. Therefore, a sliding sleeve 7 that can slide up and down along the support shaft 4 is installed on the outside of the support shaft 4. A support ring 5 is connected to the outside of the sliding sleeve 7 via a rotating bearing. A hanging ring 6 for attaching the safety rope is installed on the outside of the support ring 5. When the worker walks on the transformer, the installed rope pulls the hanging ring 6, which in turn pulls the support ring 5, allowing it to rotate around the sliding sleeve 7 and the support shaft 4 inside the sliding sleeve 7. This prevents the safety rope from getting tangled on the support shaft and becoming shorter. The sliding sleeve 7 can slide up and down along the support shaft 4, facilitating workers to move a large distance up and down on the transformer during construction. After the sliding sleeve 7 is adjusted to a suitable position, it is fixed to the support shaft 4 using a temporary positioning device. The temporary positioning device includes a T-block 11 and a screw 12 threadedly connected to the T-block. A T-groove is machined on the side of the support shaft 4. The T-block 11 is slidably installed in the T-groove. A through hole is machined in the sleeve 7. The screw 12 passes through the through hole and is threadedly connected to the T-block 11, pressing the sleeve 7 between the screw 12 and the T-block 11, thus fixing the height position.

[0020] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A safety belt and safety rope suspension device for a transformer, characterized in that, It includes a U-shaped frame (2), the upper end of which is connected to a support shaft (4), and at least one pair of hanging rings (6) are rotatably connected to the support shaft (4). At least one fastening device is provided at the lower end of the U-shaped frame (2).

2. The safety belt and safety rope suspension device for a transformer according to claim 1, characterized in that, The fastening device includes a top clamping shaft (9), which is threadedly connected to the U-shaped frame (2), and a suction cup (10) is provided at the upper end of the top clamping shaft (9).

3. A safety belt and safety rope suspension device for a transformer according to claim 2, characterized in that, The upper end of the clamping shaft (9) protrudes into the inside of the suction cup (10), and the protruding part connects the clamping shaft (9) to the suction cup (10) through the spring retaining ring (13).

4. A safety belt and safety rope suspension device for a transformer according to claim 2, characterized in that, An anti-loosening nut (14) is provided on the outside of the tightening shaft (9) at the lower end of the U-shaped frame (2).

5. A safety belt and safety rope suspension device for a transformer according to claim 1, characterized in that, The support shaft (4) is fitted with a sliding sleeve (7), which is slidably connected to the support shaft (4) in the vertical direction. A temporary positioning device is provided between the sliding sleeve (7) and the support shaft (4), and the hanging ring (6) is rotatably connected to the sliding sleeve (7).

6. A safety belt and safety rope suspension device for a transformer according to claim 5, characterized in that, The temporary positioning device includes a T-shaped block (11), and the side of the support shaft (4) is provided with a T-shaped groove for sliding installation of the T-shaped block (11). The T-shaped block (11) is temporarily positioned with the T-shaped groove by screws (12).

7. A safety belt and safety rope suspension device for a transformer according to claim 1, characterized in that, The upper end of the U-shaped frame (2) is connected to a support base (3), and the support shaft (4) is detachably inserted into the support base (3).

8. A safety belt and safety rope suspension device for a transformer according to claim 7, characterized in that, The support shaft (4) and the support base (3) are fixed to each other by at least two perforated pins.

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