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KR-102964434-B1 - High Place Worker Prevention of Falling Portable Safety System and Installation Method thereof

KR102964434B1KR 102964434 B1KR102964434 B1KR 102964434B1KR-102964434-B1

Abstract

The portable safety device (1) for preventing falls of workers at height according to the present invention and the method of installation thereof include a GIS tank installation part (10, 20, 30, 40) which is fixed by being assembled with one or more of the plurality of flange bolts (120) arranged in a circle on the GIS flange (110) of the GIS tank (100), and a height extension post (60) which adjusts the vertical height of the GIS tank installation part (10, 20, 30, 40) and secures the safety of a worker (200) at the top of the GIS tank (100) by having a hook attached thereto. This allows for easy installation and a robust structure by utilizing wrench sockets (80) of various sizes, thereby enabling the prevention of falls of workers at heights on the top of the GIS tank, and also satisfies Article 44 of the Rules on Industrial Safety and Health Standards, which requires "wearing a safety harness and installing a fastening device when working at heights of 2m or more."

Inventors

  • 이종호
  • 이승준
  • 임재신

Assignees

  • 한국전력공사

Dates

Publication Date
20260513
Application Date
20231229

Claims (13)

  1. A GIS tank mounting part that is assembled and fixed with one or more of a plurality of flange bolts arranged in a circle around the perimeter of a GIS flange connecting a GIS tank, and It includes a height extension post that adjusts the vertical height of the GIS tank installation part and secures the safety of a worker at the top of the GIS tank by attaching a hook, The above GIS tank installation part A wrench forming the fixing force with the above flange bolt, A sliding bar wrapping around a portion of the above GIS flange, A support that is vertically erected and into which the height extension post is inserted, A portable safety device for preventing falls of workers at heights, characterized by including a turnbuckle fixed to the support member and the flange bolt.
  2. delete
  3. In claim 1, the wrench A portable safety device for preventing falls of high-altitude workers, characterized by being fastened in the left and right directions of the above-mentioned GIS flange.
  4. In claim 1, the sliding bar and the support A portable safety device for preventing falls by high-altitude workers, characterized by a flange width adjustment block structure that matches the thickness of the GIS flange.
  5. In claim 4, the flange width adjustment block structure is A pair of blocks comprising a moving block of the above sliding bar and a fixed block of the above support facing each other, A width adjustment plate fixed to the upper part of the movable block and passing through a horizontal slot formed on the upper part of the fixed block to reduce the width of the movable block and the fixed block, and A guide rod fixed to the upper part of the movable block above the width adjustment plate and bolted to the support A portable safety device for preventing falls of workers at height, characterized by being composed of
  6. In claim 5, each of the movable block and the fixed block has A vertical slot into which the above wrench is inserted is formed, and A portable safety device for preventing falls by a worker at height, characterized in that the wrench above changes its height position in the vertical slot.
  7. In claim 5, the support and the turnbuckle are It generates fixing force with a triangular arrangement structure, and A portable safety device for preventing falls of high-altitude workers, characterized in that the above triangular arrangement structure is formed by the support body of the above support and two of the above flange bolts.
  8. In claim 7, the turnbuckle is A ring connection portion that is hooked onto a turnbuckle loop of the above-mentioned support body and a bolt connection portion that is hooked onto a flange bolt are formed, and A portable safety device for preventing falls of workers at heights, characterized in that tension adjustment is performed on each of the above-mentioned ring connecting part and the above-mentioned bolt connecting part in the state of the above-mentioned triangular arrangement structure.
  9. In claim 1, the support The height of the above height extension post is maintained with a height fixing bolt, and The above height fixing bolt is A portable safety device for preventing falls of workers at heights, characterized by forming a fixing force through a screw hole drilled in the body of the support at the upper part of the support and a screw fastening.
  10. In claim 9, the height extension post A safety harness fastening hook is provided at the upper end, The above safety belt fastening hook is A portable safety device for preventing falls of workers at heights, characterized by a hook shape protruding from the upper end of a height extension post for hooking a worker's safety belt or safety equipment.
  11. In claim 9 or claim 10, the support is formed of a hollow structure, and A portable safety device for preventing falls of workers at heights, characterized in that the height extension post is shaped to be fitted into the hollow structure.
  12. ◈Claim 12 was waived upon payment of the establishment registration fee.◈ A pair of a first wrench and a second wrench that are assembled and fixed with one or more of the multiple flange bolts arranged in a circle around the perimeter of a GIS flange connecting a GIS tank, A pair of fixed blocks of a support facing each other and a movable block coupled to the above flange bolt, A vertically erected support having the above-mentioned fixed block provided at the bottom. A pair of first and second turnbuckles for fixing the above support, and It is composed of a height extension post that is inserted into the hollow structure of the above-mentioned support and fixed with a height fixing bolt while raising the height of the above-mentioned support, and is equipped with a safety harness fastening hook for hanging a worker's safety harness or a hook of safety equipment. One end of the first turnbuckle is connected to the first turnbuckle ring of the support, and one end of the second turnbuckle is connected to the second turnbuckle ring of the support, and the other ends of the first and second turnbuckles are respectively hooked and fixed to the flange bolts to form a triangular arrangement structure with the support. Portable safety device for preventing falls of workers at height, characterized by the following.
  13. ◈Claim 13 was waived upon payment of the establishment registration fee.◈ A step of adjusting the flange width to align with the GIS flange of the GIS tank by adjusting the distance of the movable block to the fixed block of the support, and adjusting the flange depth by aligning the first wrench of the movable block and the second wrench of the fixed block with the flange bolt of the GIS flange, and then inserting the GIS flange between the movable block and the fixed block; A step of connecting a socket fitted to the flange bolt of the GIS flange to the socket connection part of the first wrench and the second wrench, and fixing it to the flange bolt; A step in which a first turnbuckle and a second turnbuckle, which are hooked onto a first turnbuckle loop and a second turnbuckle loop of the support, are fixed to two of the flange bolts to form a triangular arrangement structure, and the support is erected on the GIS flange; and A step of inserting a height extension post into the hollow structure of the above support to adjust the height, then securing it by tightening a height fixing bolt, and connecting a worker's safety harness or a hook of safety equipment to the safety harness fastening loop of the height extension post. A method for installing a portable safety device for preventing falls of workers at height, characterized by being performed as follows.

Description

Portable Safety System for Preventing Falls by High Place Workers and Installation Method Thereof The present invention relates to a safety device for preventing falls of workers at heights, and more specifically, to a portable safety device for preventing falls of workers at heights utilizing a wrench socket used on the top of a GIS tank and a method for installing the same. In general, since a worker's sudden misstep during work at height can lead to a major safety accident, workers use safety belts, ropes, and safety hooks to prepare for the event of a fall. In particular, Gas Insulated Switchgear (GIS) tanks are cylindrical in shape and installed at a height of about 4 to 5 meters. When working at height on the upper part of the GIS, workers are exposed to the risk of falling due to the small foothold area. Accordingly, in accordance with Article 44 of the Rules on Industrial Safety and Health Standards, which stipulates the "wearing of safety harnesses and installation of fastening devices for work at heights of 2 meters or more," a separate device, such as a suitable member for fastening the worker's safety harness hook, is required. To this end, a fall prevention safety device for workers at height on the GIS is used, consisting of two band-type fixing devices (e.g., ratchet bars), a support, a wire, and two turnbuckles for tension adjustment, to prepare for the event of a fall accident involving the worker during high-altitude work on the GIS. For example, the above-mentioned safety device for preventing falls by a high-altitude worker on top of a GIS is installed by installing a support, and band-type fixing devices (ratchet bars) are wrapped around two locations around the perimeter of the GIS tank and connected with a wire to be used as a set, and the entire length of the wire is used as the working range while adjusting the tension with a turnbuckle. FIG. 1 is a configuration diagram of a portable safety device for preventing falls of workers at height according to the present invention, FIG. 2 shows a state in which a wrench and a sliding bar according to the present invention are fastened to a GIS flange, FIG. 3 is an example of adjusting the flange width to match the thickness of the GIS flange and adjusting the flange depth to match the position of the flange bolt according to the present invention, FIG. 4 shows a state in which the portable safety device for preventing falls of workers at height according to the present invention is used on the upper part of a GIS tank. Embodiments of the present invention will be described in detail below with reference to the attached illustrative drawings. Since these embodiments are merely examples and can be implemented in various different forms by those skilled in the art to which the present invention pertains, the embodiments described herein are not limited to the examples described herein. Referring to FIG. 1, the portable safety device (1) for preventing falls of high-altitude workers includes a GIS tank installation part (10, 20, 30, 40) and a height extension post (60). From this, the above-mentioned portable safety device (1) for preventing workers from falling from heights implements the maximization of versatility by a socket-exchangeable wrench (10), custom installation according to the width/depth of the GIS flange by a sliding bar (20), and securing stability when a worker falls by a turnbuckle (40) that provides additional strength reinforcement against horizontal loads. Specifically, the above GIS tank installation part (10, 20, 30, 40) includes a wrench (10), a sliding bar (20), a support (30), and a turnbuckle (40), and the wrench (10) forms a fixing force on the GIS flange (110) of the GIS tank (100), and for this purpose, it is composed of two first and second wrenches (10-1, 10-2) that are fastened in the left-right direction of the flange thickness of the GIS flange (110) (i.e., the x-axis of the xyz coordinate). For example, each of the first and second wrenches (10-1, 10-2) has a bolt shaft-shaped wrench rod (11) having a predetermined length and a socket connection part (12) of various shapes into which a socket (80) (see FIG. 2) is fitted at the end. Therefore, the first wrench (10-1) and the second wrench (10-2) are each assembled with the sliding bar (20) and the support (30), respectively, so that they can be moved on both the left and right sides of the GIS flange (110) according to the flange thickness. Specifically, the sliding bar (20) and the support (30) form a flange width adjustment block structure (21, 25, 27, 31) that matches the thickness of the GIS flange (110), and the sliding bar (20) is formed in a roughly “L” shape and paired with a fixed block (31), which is a lower component of the support (30), to enable width adjustment for the flange thickness of the GIS flange (110). To this end, the sliding bar (20) is composed of a moving block (21), a width adjustment plate (25), and a guide rod (27). For example,