KR102489583B1 - Safety device for transformer and install method thereof - Google Patents

Abstract

The present invention relates to a transformer safety device and a method for installing the same, an upper frame covering the upper surface of a transformer upper plate, a lower frame surrounding the lower surface of the transformer upper plate and having a fixing device insertion hole formed by punching a main body, and the upper frame and the lower frame A support frame including side frames connecting both ends of the frame. A transformer safety device including a support having one end coupled to the upper frame and a fixing device that presses the upper plate through the fixing device insertion hole to fix the support frame to the transformer upper plate, and a method for installing the same to provide.

Description

Transformer safety device and its installation method {SAFETY DEVICE FOR TRANSFORMER AND INSTALL METHOD THEREOF}

The present invention relates to a safety device for a power transformer of 154kV or more and a method for installing the same, and more particularly, to a safety device for a transformer for preventing a worker from falling in the process of working at a height of a power transformer of 154kV or more and a method for installing the same it's about

In general, in the course of electrical work, construction process, and shipbuilding-plant construction operation, there is a high risk of safety accidents due to the nature of the industry, where work is performed at a height of 2m or more.

Therefore, when working at height, for the safety of workers, safety devices such as pedestals are placed in the work area, and safety ropes are installed on the safety devices so that workers can perform work while moving while hanging on the safety ropes.

In order to prevent workers from falling, safety rings fastened to safety ropes must be worn at all times when working at heights to prevent death or injury to workers from fatal falls. has an obligation to do

However, when working by fixing the safety ring to power facilities such as transformer bushing insulators as shown in FIG. Equipment may be damaged, which may lead to delays in work.

In order to solve this problem, temporary ropes, etc. are installed on the upper part of the pole-type transformer and safety rings are fixed, but safety is not verified, so it does not provide sufficient protection in case of safety accidents.

Korea Registered Utility Model Publication No. 20-0492251

The present invention was created to improve the conventional problems as described above, and is coupled to the upper part of the 154kV or higher power transformer to secure the safety of the operator's safety ring without damaging the power equipment. Its purpose is to provide a device and its installation method.

In order to achieve the above object, the transformer safety device according to the present invention includes an upper frame covering the upper surface of the upper plate of the transformer, a lower frame covering the lower surface of the upper plate of the transformer and having a main body perforated to form a fixing device insertion hole, and the upper part A support frame including a side frame connecting both ends of the frame and the lower frame; a support having one end coupled to the upper frame; and a fixing device that presses the transformer top plate through the fixing device insertion hole to fix the support frame to the transformer top plate.

The support is a hollow tube-shaped support body; a support connecting member having a support insertion groove on one side to insert one side of the support body and a bolt insertion hole formed on the other side to insert a bolt; a support adapter inserted into the other side of the support body; It may include; and a safety ring rotatably coupled along the outer circumference of the support adapter.

The safety rings may be formed in plurality by being spaced apart from each other at predetermined intervals so that a plurality of hook rings can be coupled at the same time.

The safety ring surrounds the outer diameter of the support adapter so as to be rotatable along the circumference of the support adapter, and includes a rotating ring including an extension protruding from a side portion; and a fastening ring connected through the extension portion so that the hook ring can be inserted.

A support screw thread may be formed along a circumference of one end of the support body, and a screw thread may be formed on the inside of the support insert groove to be coupled with the support screw wire.

The side frame may be vertically connected to the upper frame and the lower frame to surround the upper plate of the transformer.

The fixing device may include a fixing bolt passing through the fixing device insertion hole and pressing the upper plate of the transformer.

The fixing bolt has a fixing bolt body formed in a polygonal shape on the outside; and a pressure plate provided at an end of the fixing bolt body to press the upper plate of the transformer.

The fixing device is coupled to the outer side of the fixing bolt, the pressing flange is formed at regular intervals along the circumference through the pressing flange; and an anti-loosening bolt that presses the lower frame through the pressure flange through-hole to prevent the fixing bolt from being loosened by reverse rotation.

The anti-loosening bolt is a anti-loosening bolt body; and an anti-loosening pressure plate provided at an end of the anti-loosening bolt body so as to press the lower frame.

In addition, in order to achieve the above object, a method for installing a transformer safety device according to the present invention includes a support frame insertion step of inserting a support frame including an upper frame, a lower frame, and a side frame so as to surround the upper plate of the transformer; A support installation step of fastening one end of the support to the upper frame; and a fixing device coupling step in which a fixing device penetrates the fixing device insertion hole formed in the lower frame and presses the upper plate of the transformer.

The fixing device may include a fixing bolt that is rotated by a work tool and presses the upper plate of the transformer.

The fixing device may include a pressure flange coupled to the outside of the fixing bolt and formed with pressure flange through-holes at regular intervals along the circumference.

In addition, the installation method of the transformer safety device according to the present invention may further include an anti-loosening bolt insertion step of inserting the anti-loosening bolt through the pressure flange through-hole to prevent the fixing bolt from rotating backward.

The support installation step may include a support body fastening step of fastening the support body to the upper frame; After the support body fastening step is performed, a safety ring insertion step of inserting a safety ring into the support adapter; and an adapter insertion step of inserting the support adapter into the support body together with the safety ring.

As described above, according to the transformer safety device and its installation method according to the present invention, a transformer safety device that can connect a worker's safety ring to the top of a power transformer of 154 kV or more in difficult working conditions is provided, resulting in a disaster caused by a worker's fall. can contribute to prevention.

In addition, it is possible to easily install a transformer safety device on a power transformer of 154kV or higher, reducing installation time and cost, and multiple workers can work simultaneously on top of a power transformer of 154kV or higher.

1 is a photograph of a rope installed to bind a worker's safety ring to a conventional power transformer of 154 kV or more.
Figure 2 is a photograph taken of a worker's safety ring installed in a transformer bushing insulator in a conventional power transformer of 154 kV or more.
3 is a photograph showing a state in which a transformer safety device according to an embodiment of the present invention is coupled to a transformer top plate.
4 is a photograph taken of a state in which the operator's hook hook is fastened to the transformer safety device according to an embodiment of the present invention.
5 is a cross-sectional view showing a transformer safety device according to an embodiment of the present invention.
6 is an enlarged cross-sectional view of a support frame and a fixing device in a transformer safety device according to an embodiment of the present invention.
7 is a bottom view of a transformer safety device according to an embodiment of the present invention viewed from the bottom.
8 is a cross-sectional view showing an enlarged front end of a support in a transformer safety device according to an embodiment of the present invention.
9 is a flowchart illustrating a method of installing a transformer safety device according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be construed as including all changes, equivalents, or substitutes included in the spirit and technical scope of the present invention.

In describing the present invention, terms such as first and second may be used to describe various components, but the components may not be limited by the terms. These terms are only for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention.

The term "and/or" may include any combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected or connected to the other component, but other components may exist in the middle. can be understood On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it may be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions may include plural expressions unless the context clearly dictates otherwise.

In this application, terms such as "comprise" or "having" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features It may be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries may be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, interpreted in an ideal or excessively formal meaning. It may not be.

In addition, the following embodiments are provided to more completely explain to those with average knowledge in the art, and the shapes and sizes of elements in the drawings may be exaggerated for clearer explanation.

Figure 1 discloses a picture of installing a rope to bind the hook ring 2 of the operator in a power transformer of 154 kV or more in the prior art, but there is a problem in that it cannot provide sufficient safety in case of an actual fall.

In addition, FIG. 2 combines the hook ring 2 of a worker of a power transformer of 154 kV or more in the prior art with an insulator, which is a component of the transformer, but in this case, in the event of a safety accident, there is a risk of damage due to strong force applied to the insulator, etc. Replacement of parts It costs money and takes time.

On the other hand, referring to FIG. 3, when the transformer safety device according to the embodiment of the present invention is coupled to the transformer top plate (1) covering the top of a power transformer of 154 kV or more, the hook ring (2) of the operator working on the top of the transformer can be combined to prevent damage to the main body of the transformer and at the same time to prevent safety accidents of workers.

In detail, since the operator's hook hook (2) can be coupled to the support 120 included in the transformer safety device as shown in FIG. solve

Referring to FIG. 5, the transformer safety device according to an embodiment of the present invention includes an upper frame 111 surrounding the upper surface of the transformer upper plate 1, a lower surface of the transformer upper plate 1, and a main body with a hole. A support frame 110 including a lower frame 112 having a fixing device insertion hole 112a formed thereon and a side frame 113 connecting both ends of the upper frame 111 and the lower frame 112, one end of which is The support 120 coupled to the upper frame 111 and the support frame 110 are inserted into the transformer upper plate 1 through the fixing device insertion hole 112a to fix the support frame 110 to the transformer upper plate 1. It includes a fixing device 130 for pressing.

Referring to FIG. 3, the support frame 110 includes a plate-shaped upper frame 111 surrounding the upper surface of a transformer upper plate 1 coupled to an upper portion of a 154 kV or higher power transformer, and the upper frame 111 ) Wraps around the bottom surface of the transformer upper plate 1 opposite to the lower frame 112 in which the main body is perforated and a fixing device insertion hole 112a is formed, at both ends of the upper frame 111 and the lower frame 112 Including the side frames 113 connected to each other, the shape of a U is formed as a whole to surround the outer surface of the transformer upper plate 1.

The length of the upper frame 111 is longer than the length of the lower frame 112 so that the contact area between the upper frame 111 and the transformer upper plate 1 increases, so that the transformer upper plate 1 The fixing force of the upper frame 111 is improved.

When the fixing power of the upper frame 111 is improved, the number of hook hooks 2 of workers that can be fixed to the support 120 increases, so that the number of workers who can work simultaneously increases, so there is no need to additionally install a transformer safety device. The number of workers can be flexibly adjusted.

Both ends of the side frame 113 may be connected to the upper frame 111 and the lower frame 112 at an angle of any one of an acute angle, a right angle, and an obtuse angle, and most preferably, the upper portion of the transformer has a corner formed at a right angle. It may be vertically connected to the upper frame 111 and the lower frame 112 so as to surround the plate 1 .

The support frame 110 may be formed to include any one or more of chromium, aluminum, titanium, and stainless steel having excellent corrosion resistance, and most preferably, it is preferable to use aluminum having a dense oxide film formed on its surface.

Since the upper frame 111 is perforated at a plurality of locations to form fixing device insertion holes 111a, the fixing device 130 penetrates the fixing device insertion holes 112a to secure the transformer upper plate 1. Since the pressure is applied, the support frame 110 is prevented from being separated from the upper plate 1 of the transformer.

In addition, since a female thread is formed inside the fixing device insertion hole 112a, the male thread formed on the outside of the fixing device 130 is engaged with the female thread and rotates to move toward the upper frame 111 so as to move toward the transformer transformer. Press the upper plate (1).

The support 120 is installed so that one end is coupled to the upper frame 111 and erected so that the operator's hook ring 2 may be defective.

In detail, the support 120 has a support body 121 having a hollow tube shape, a support insertion groove 122b is provided on one side so that one side of the support body 121 is inserted, and a bolt 10 is inserted on the other side. A support connecting member 122 having a bolt insertion hole 122c formed thereon, a support adapter 123 inserted into the other side of the support body 121, and a safety coupled rotatably along the outer circumference of the support adapter 123. Including the ring 124, the upper frame 111 of the support frame 110 is erected vertically and the operator's hook ring 2 can be coupled.

The support body 121 includes a support pipe 121a made of metal including aluminum, chromium, titanium, and stainless steel having a hollow inside and excellent corrosion resistance and high strength through which the center is penetrated. .

The support body 121 is formed to have a narrower diameter or width as it moves away from the support frame 110 along the axial direction, and hook rings 2 of various sizes may be coupled to the support body 121 .

In addition, the support body 121 is formed to have a narrower diameter or width as it moves away from the support frame 110 along the axial direction, so that it can withstand impact from the outside.

The support connection member 122 is provided with a support connection body 122a and a support insertion groove 122b formed by being recessed from one side of the support connection body 122a so that the support body 121 can be rotated and inserted. And, a plurality of bolt insertion holes 122c are formed by being recessed along the circumference of the other side surface of the support connection body 122a so that the bolt 10 is inserted.

The support body 121 has a support screw line 121b formed along the circumference of one end, and a screw thread is formed on the inner side of the support insertion groove 122a to be coupled with the support screw line 121b and fastened to each other.

In addition, since the safety rings 124 are spaced apart at predetermined intervals so that several workers can use them at the same time and are rotatable along the outer circumference of the support 120, a plurality of hook rings 2 of the operator can be simultaneously coupled. can

The safety ring 124 surrounds the outer diameter of the support adapter 123 so as to be rotatable along the outer circumference of the support adapter 123, and includes a rotating ring 124a including an extension protruding from the side and the hook ring ( 2) includes a fastening ring 124b connected through the extension so that it can be inserted.

One side of the fastening ring 124b is opened, and a coupling device that can be coupled to each other is formed at the end of the open side, and after the operator's hook ring 2 is coupled, the coupling device rotates to fix the one side. Since it is formed to be closed, the speed at which the operator's hook ring 2 is fastened is improved, and the hook ring 2 is prevented from being separated.

The detailed structure of the coupling device is a conventionally known technology, and even if it is omitted, a person skilled in the art can practice the invention with reference to the drawings, so the detailed structure is omitted.

The center of the safety ring 124 is perforated to detect a collision between the rotating rings 124a rotating along the circumference of the support adapter 123 and coupled to the support adapter 123, and a plurality of the rotating rings 124a. ) and further includes an anti-collision plate 124c disposed between them.

In addition, the safety ring 124 further includes ring spacer members 124d disposed between the plurality of rotation rings 124a so as to be spaced apart from each other.

In addition, the fixing device 130 includes a fixing bolt 131 that presses the transformer upper plate 1 through the fixing device insertion hole 112a.

In detail, the fixing bolt 131 passes through the fixing device insertion hole 112a of the lower frame 112 and moves toward the upper frame 111, and presses in contact with the upper plate 1 of the transformer. The support frame 110 is fixed to the upper plate 1 of the transformer.

The fixing bolt 131 includes a fixing bolt body 131a formed in a polygonal shape on the outside so that a work tool can be inserted, and a pressing plate provided at an end of the fixing bolt body 131a to press the transformer upper plate 1 ( 131b).

The fixing bolt body (131a) is formed in a circular shape or polygonal shape on the outside so that the worker can rotate the fixing bolt body (131a) by inserting the work tool may correspond to the work tool.

The pressing plate 131b is provided at an end of the fixing bolt body 131a, and the width of the main body is formed to be larger than the width of the fixing bolt body 131a so as to press the transformer upper plate 1, so that the transformer upper plate (1) and the contact surface is increased.

In addition, since the pressing plate 131b is formed concavely in a direction toward the upper frame 111, the pressing force for pressing the upper plate 1 of the transformer is concentrated at both ends, thereby preventing the fixing bolt 131 and the upper part of the transformer. The fastening force of the plate 1 is improved.

The fixing device 130 is coupled to the outside of the fixing bolt 131, and the pressing flange 132 formed with the pressing flange through-holes 132b at regular intervals along the circumference, the fixing bolt 131 reversely rotates An anti-loosening bolt 133 for pressing the lower frame 112 through the pressure flange through-hole 132b to prevent loosening may be further included.

The anti-loosening bolt 133 is an anti-loosening bolt body (133a). It includes an anti-loosening pressing plate 133b provided at an end of the anti-loosening bolt body 133a so as to press the lower frame 112.

The anti-loosening bolt body (133a) may have a circular or polygonal outer side, and a plurality of protrusions are additionally formed along the outer circumference to increase frictional force with a working tool or operator.

The anti-loosening pressing plate 133b is provided at the end of the anti-loosening bolt body 133a, and presses the lower frame 112 to prevent the fixing bolt 131 from rotating backward so that the width of the main body is adjusted to the anti-loosening bolt body 133a. It is formed larger than the width of the anti-bolt body 133a to increase the contact surface with the lower frame 112.

A method for installing a transformer safety device according to another embodiment of the present invention to install the above transformer safety device on the transformer upper plate (1) includes an upper frame 111 and a lower frame 112 to surround the transformer upper plate 1 , Support frame insertion step of inserting the support frame 110 including the side frame 113 (S10), support installation step of fastening one end of the support 120 to the upper frame 111 (S20). A fixing device coupling step (S30) of pressurizing the transformer upper plate 1 by passing the fixing device 130 through the fixing device insertion hole 112s formed in the lower frame 112 is included.

The fixing device 130 includes a fixing bolt 131 for pressurizing the upper plate 1 of the transformer by inserting and rotating a work tool. It is fixed to the top plate of the transformer (1) to prevent it from coming off.

The fixing device 130 is coupled to the outside of the fixing bolt 131, and includes a pressing flange 132 having pressurizing flange through-holes 112a formed at regular intervals along the circumference, and an anti-loosening bolt 133 is added. combined with

In addition, the installation method of the transformer safety device according to another embodiment of the present invention is to prevent the fixing bolt 131 from rotating backward by inserting a loosening prevention bolt through the pressurized flange through hole 132b. A bolt insertion step (S40) is further included.

In the anti-loosening bolt insertion step (S40), the anti-loosening bolt 133 is inserted through the pressure flange through-holes 132b arranged at predetermined intervals along the circumference of the pressure flange 132, and the anti-loosening bolt 133 is inserted. The bolt 133 moves toward the lower frame 112 and presses the lower frame 112 .

Therefore, since the reverse rotation of the pressing flange 132 coupled to the fixing bolt 131 is prevented, the support frame 110 is connected to the transformer top plate 1 due to the reverse rotation of the fixing bolt 131. escape from is prevented.

In addition, in the support installation step (S20), after the support body fastening step (S21) of fastening the support body 121 to the upper frame 111 and the support body fastening step (S21) are performed, the safety ring 124 ) into the support adapter 123, including a safety ring insertion step (S22) and an adapter insertion step (S23) of inserting the support adapter 123 into the support body 121 together with the safety ring 124. do.

In the support body fastening step (S21), a thread is formed on the outside of the end of the support body 121 in the form of a hollow tube and inserted into the support insertion groove 122b of the support connection member 122 equipped with a corresponding thread. The support connection member 122 is provided with a bolt insertion hole 122b so that the bolt 10 penetrating the upper frame 111 is inserted to fasten the support 120 to the support frame 110 .

In the safety ring insertion step (S22), a safety ring 124 including a circular rotation ring 124a and a fastening ring 124b vertically connected to the rotation ring 124a is inserted into the support adapter 123, This is the bonding stage.

In detail, in the safety ring insertion step (S22), the end of the bolt-shaped support adapter 123 passes through the opening of the rotation ring 124a so that the rotation ring 124a is installed around the outer circumference of the support adapter 123. It is coupled so that it can rotate along.

In the adapter insertion step (S23), the end of the support adapter 123 to which the safety ring 124 is coupled is rotated and inserted into the hollow of the support body 121 to be fixed.

A thread is formed on the outside of the support adapter 123, and is fixed by being mutually coupled with a thread formed to correspond to the inside of the hollow of the support body 121.

Although the present invention has been described in detail through specific examples, this is for explaining the present invention in detail, the present invention is not limited thereto, and the present invention is within the technical spirit of the present invention. It is clear that modification or improvement is possible by the person.

All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific protection scope of the present invention will be clarified by the appended claims.

1: Transformer top plate
2 : hook hook
10 : Bolt
110: support frame
111: upper frame
112: lower frame
112a: fixture insertion hole
113: side frame
120: support
121: support body
121a: support pipe
121b: support screw
122: support connecting member
122a: support connection body
122b: support insertion groove
122c: bolt insertion hole
123: support adapter
124: safety ring
124a: rotation ring
124b: fastening ring
124c: anti-collision plate
124d: ring spacing member
130: fixture
131: fixing bolt
131a: fixing bolt body
131b: pressure plate
132: pressurized flange
132a: pressurized flange body
132b: pressurized flange through hole
133: anti-loosening bolt
133a: anti-loosening bolt body
133b: anti-loosening screw wire
133c: anti-loosening plate

Claims (15)

A support frame including an upper frame surrounding the upper surface of the transformer upper plate, a lower frame surrounding the lower surface of the transformer upper plate and having a main body through which a fixing device insertion hole is formed, and a side frame connecting both ends of the upper frame and the lower frame;
a support having one end coupled to the upper frame; and
a fixing device that presses the transformer top plate through the fixing device insertion hole to fix the support frame to the top plate of the transformer;
including,
The fixing device is
a fixing bolt passing through the fixing device insertion hole and pressing the upper plate of the transformer;
A pressure flange coupled to the outside of the fixing bolt and formed with pressure flange through-holes at regular intervals along the circumference; and
an anti-loosening bolt that presses the lower frame through the pressure flange through-hole to prevent the fixing bolt from being loosened by reverse rotation;
A transformer safety device including a.
The method of claim 1,
the support,
A hollow tube-shaped support body;
a support connecting member having a support insertion groove on one side to insert one side of the support body and a bolt insertion hole formed on the other side to insert a bolt;
a support adapter inserted into the other side of the support body; and
A safety ring rotatably coupled along the outer circumference of the support adapter;
A transformer safety device comprising a.
The method of claim 2,
The safety ring,
A transformer safety device, characterized in that formed in a plurality of hook rings spaced apart from each other at a predetermined interval so that a plurality of hook rings can be coupled at the same time.
The method of claim 3,
The safety ring,
a rotating ring surrounding the outer diameter of the support adapter so as to be rotatable along the circumference of the support adapter and including an extension protruding from a side portion; and
a fastening ring connected through the extension portion so that the hook ring can be inserted;
Transformer safety device comprising a.
The method of claim 2,
The support body,
A support screw is formed along the circumference of one end,
The support insertion groove,
A transformer safety device, characterized in that a screw is formed on the inside to be coupled with the support screw.
The method of claim 1,
The side frame,
A transformer safety device, characterized in that vertically connected to the upper frame and the lower frame, respectively, so as to surround the transformer upper plate.
delete The method of claim 1,
The fixing bolt,
A fixing bolt body having an outer polygonal shape; and
a pressure plate provided at an end of the fixing bolt body to press the upper plate of the transformer;
Transformer safety device comprising a.
delete The method of claim 1,
The loosening prevention bolt,
anti-loosening bolt body; and
an anti-loosening pressure plate provided at an end of the anti-loosening bolt body to press the lower frame;
Transformer safety device comprising a.
A support frame inserting step of inserting a support frame including an upper frame, a lower frame, and a side frame to surround the transformer upper plate;
A support installation step of fastening one end of the support to the upper frame; and
A fixing device coupling step in which a fixing device passes through a fixing device insertion hole formed in the lower frame and presses the upper plate of the transformer;
including,
The fixing device is
a fixing bolt that is rotated by a working tool and presses the upper plate of the transformer; and
A pressure flange coupled to the outside of the fixing bolt and formed with pressure flange through-holes at regular intervals along the circumference;
Installation method of a transformer safety device comprising a.
delete delete The method of claim 11,
Anti-loosening bolt insertion step of inserting an anti-loosening bolt through the pressure flange through-hole to prevent reverse rotation of the fixing bolt;
Installation method of the transformer safety device, characterized in that it further comprises.
The method of claim 11,
In the step of installing the support,
A support body fastening step of fastening the support body to the upper frame;
After the support body fastening step is performed, a safety ring insertion step of inserting a safety ring into the support adapter; and
an adapter insertion step of inserting the support adapter into the support body together with the safety ring;
Installation method of a transformer safety device comprising a.

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