KR20220083311A - 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 surrounding the upper surface of a transformer upper plate, a lower frame surrounding the lower surface of the transformer upper plate and having a body perforated to form a fixing device insertion hole, and the upper frame and the lower part A support frame including a side frame connecting both ends of the frame. A transformer safety device including a support installed by being coupled to the upper frame at one end and a fixing device for pressing the upper plate through the fixing device insertion hole to fix the support frame to the transformer upper plate to provide.

Description

Transformer safety device and its installation method

The present invention relates to a transformer safety device for power of 154 kV or more and an installation method thereof, and more particularly, to a transformer safety device and an installation method thereof that can prevent a fall of an operator in the process of high-place work of a transformer for power of 154 kV or more. 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 because a lot of work at heights performed at a position of 2 m or more occurs due to the nature of the industry.

Therefore, when working at height, a safety device such as a pedestal is placed in the work area for the safety of the worker, and a safety rope is installed on the safety device so that the worker can perform the work while being caught on the safety rope.

Safety hooks fastened to safety ropes to prevent workers from falling must be worn at all times when working at height to prevent death or injury of workers from fatal fall accidents. have an obligation to do

However, if there is no separate safety ring fixing device on the upper part of the transformer for power over 154kV, and when working by fixing the safety ring on the power equipment such as the transformer bushing insulator as shown in FIG. Equipment may be damaged, which may lead to delays in work.

In order to solve this problem, a temporary rope is installed on the upper part of the pole transformer and a safety ring is fixed, but safety is not verified, so it does not provide sufficient protection in case of a safety accident.

Korean Utility Model Publication No. 20-0492251

The present invention was created to improve the problems of the prior art as described above, and it is coupled to the upper part of the 154kV or higher power transformer, and the 154kV or higher power transformer safety that can fasten the worker's safety loop without damaging the power equipment An object of the present invention is to provide an apparatus and a method for installing the same.

In order to achieve the above object, the transformer safety device according to the present invention includes an upper frame that surrounds the upper surface of the transformer upper plate, a lower frame that surrounds the lower surface of the transformer upper plate and the body is 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 installed; and a fixing device for pressing 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 provided with a support insertion groove on one side so that one side of the support body is inserted, and a bolt insertion hole formed on the other side for inserting a bolt; a support adapter inserted into the other side of the support body; and a safety ring rotatably coupled to the outer circumference of the support adapter.

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

The safety ring may include a rotating ring that surrounds an outer diameter of the support adapter so as to be rotatable along the circumference of the support adapter and includes an extension portion protruding from a side thereof; and a fixing ring connected through the extension part so that the hook ring is insertable.

The support body may have a support thread formed along the circumference of one end thereof, and the support insertion groove may have a screw thread formed therein so as to be coupled to the support screw thread.

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

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

The fixing bolt is 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 transformer upper plate.

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

The anti-loosening bolt may include an anti-loosening bolt body; and an anti-loosening pressure plate provided at the end of the anti-loosening bolt body to press the lower frame.

In addition, in order to achieve the object as described above, the installation method of the transformer safety device according to the present invention includes 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 the fixing device passes through the fixing device insertion hole formed in the lower frame to press the transformer upper plate.

The fixing device may include a fixing bolt which is rotated by a work tool to press the transformer upper plate.

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

In addition, the installation method of the transformer safety device according to the present invention may further include;

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

As described above, according to the transformer safety device and its installation method according to the present invention, it provides a transformer safety device that can connect the worker's safety ring to the upper part of the 154kV or higher power transformer, which is difficult to work in, so that the accident caused by the worker's fall can contribute to prevention.

In addition, a transformer safety device can be easily installed on a 154kV or higher power transformer, saving installation time and cost, and multiple workers can work simultaneously on the 154kV or higher power transformer.

1 is a photograph of installing a rope so as to bind a worker's safety ring to a conventional 154kV or higher power transformer.
2 is a photograph of a state in which a worker's safety ring is installed on a transformer bushing insulator in a conventional 154kV or higher power transformer.
3 is a photograph showing a state in which the transformer safety device according to an embodiment of the present invention is coupled to the transformer upper plate.
4 is a photograph of a state in which an operator's hook ring 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 illustrating 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 the transformer safety device according to an embodiment of the present invention viewed from the bottom.
8 is an enlarged cross-sectional view of the front end of the support in the 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 have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be construed to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

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

The term “and/or” may include a 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 between. can be understood On the other hand, when an element is referred to as being “directly connected” or “directly connected” to another element, it may be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression may include the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, and one or more other features It may be understood that the existence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded in advance.

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 this invention belongs. Terms such as those defined in a commonly used dictionary 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, it is 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 more clear explanation.

1 is a picture of a rope installed so as to bind a worker's hook ring 2 in a conventional 154kV or higher power transformer, but there is a problem in that it cannot provide sufficient safety in case of an actual fall.

In addition, Figure 2 is a conventional 154kV or higher power transformer hook hook (2) coupled to the insulator, which is a component of the transformer, but in this case, if a safety accident occurs, strong force is applied to the insulator, etc. It takes cost and time.

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

In detail, since the hook ring 2 of the operator can be coupled to the support 120 included in the transformer safety device as shown in FIG. 4, the operator can work stably in a power transformer of 154 kV or more, and the operator or manager is anxious to solve

5, in the transformer safety device according to an embodiment of the present invention, the upper frame 111 surrounding the upper surface of the transformer upper plate 1, the upper frame 111 surrounding the lower surface of the transformer upper plate 1, and the main body is perforated. A support frame 110 including a lower frame 112 having a fixing device insertion hole 112a formed therein and a side frame 113 connecting both ends of the upper frame 111 and the lower frame 112, one end is The transformer upper plate (1) passes through the fixing device insertion hole (112a) to fix the support 120 and the support frame (110) coupled to the upper frame (111) to the transformer upper plate (1). Includes a fixing device 130 for pressing.

3, the support frame 110 is a plate-shaped upper frame 111 surrounding the upper surface of the transformer upper plate 1 coupled to the upper portion of the 154kV or more power transformer, the upper frame 111 ) and the lower frame 112, the upper frame 111 and the lower frame 112 surrounding the lower surface of the transformer upper plate 1 opposite to the lower frame 112 in which the body is perforated and the fixing device insertion hole 112a is formed. A U-shape is formed as a whole so as to surround the outer surface of the transformer upper plate 1, including the side frames 113 that are respectively connected thereto.

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. The fixing force of the upper frame 111 is improved.

When the fixing force of the upper frame 111 is improved, the number of hook rings 2 of the workers that can be fixed to the support 120 increases, so that the number of workers who can work at the same time increases, so that 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 respectively connected to the upper frame 111 and the lower frame 112 at an acute angle, a right angle, or an obtuse angle, and most preferably, the upper part of the transformer is formed with a right angle. The upper frame 111 and the lower frame 112 may be vertically connected to each other 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 on which a dense oxide film is formed on the surface.

Since the upper frame 111 is drilled at a plurality of positions to form a fixing device insertion hole 111a, the fixing device 130 penetrates the fixing device insertion hole 112a to insert the transformer upper plate 1 into the upper frame 111. Since it is pressurized, the support frame 110 is prevented from being separated from the transformer upper plate 1 .

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

The support 120 is installed so that one end is coupled to the upper frame 111 to stand up, so that the hook ring 2 of the operator may be defective.

In detail, the support 120 is provided with a support body 121 of a hollow tube shape, a support insertion groove 122b 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 periphery of the support adapter 123 are provided. It is vertically erected with the upper frame 111 of the support frame 110 including the ring 124 so that the hook ring 2 of the operator can be coupled thereto.

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

The support body 121 is formed such that the diameter or width becomes narrower as it moves away from the support frame 110 in the axial direction, so that hook rings 2 of various sizes can be coupled to the support body 121 .

In addition, the support body 121 is formed to be narrowed in diameter or width as it moves away from the support frame 110 in the axial direction to withstand an impact from the outside.

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

The support body 121 has a support screw line 121b formed along the circumference of one end thereof, and the support insertion groove 122a is coupled with the support screw line 121b.

In addition, since the safety ring 124 is spaced at a predetermined interval so that several workers can use it at the same time and is rotatable along the outer periphery of the support 120, the hook ring 2 of the operator can be simultaneously coupled in plurality. 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 and the hook ring ( 2) includes a fastening ring (124b) connected through the extension to be insertable.

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 opened one side, and after the hook ring 2 of the operator is coupled, the coupling device rotates to separate 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.

Even if the detailed structure of the coupling device is omitted in the prior art, a person skilled in the art can practice the invention with reference to the drawings, and thus the detailed structure is omitted.

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

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

In addition, the fixing device 130 includes a fixing bolt 131 for pressing the transformer upper plate 1 through the fixing device insertion hole (112a).

In detail, the fixing bolt 131 penetrates the fixing device insertion hole 112a of the lower frame 112 and moves toward the upper frame 111 and comes into contact with the transformer upper plate 1 and pressurizes it. The support frame 110 is fixed to the transformer upper plate 1 .

The fixing bolt 131 is 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 the 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 and a polygonal shape so that an operator can rotate the fixing bolt body 131a by inserting a work tool to correspond to the working tool.

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

In addition, the pressure plate 131b is concave in the direction toward the upper frame 111, so that the pressing force for pressing the transformer upper plate 1 is concentrated at both ends, 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, the pressing flange 132 in which the pressing flange through-holes 132b are formed at regular intervals along the circumference, and the fixing bolt 131 is rotated in reverse. It may further include an anti-loosening bolt 133 for pressing the lower frame 112 through the pressure flange through-hole (132b) to prevent loosening.

The anti-loosening bolt 133 is an anti-loosening bolt body (133a). and an anti-loosening pressure plate 133b provided at the end of the anti-loosening bolt body 133a 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 periphery to increase the frictional force with the work tool or the operator.

The anti-loosening pressing plate 133b is provided at the distal end of the anti-loosening bolt body 133a, and the width of the body is widened to prevent the fixing bolt 131 from rotating in reverse by pressing the lower frame 112. It is formed larger than the width of the preventive bolt body (133a) to increase the contact surface with the lower frame (112).

The installation method of the transformer safety device according to another embodiment of the present invention to install the transformer safety device on the transformer upper plate (1) is the upper frame 111, the lower frame 112 to surround the transformer upper plate (1). , a support frame inserting step of inserting the support frame 110 including the side frame 113 (S10), and a support installation step of fastening one end of the support 120 to the upper frame 111 (S20). and a fixing device coupling step (S30) in which the fixing device 130 penetrates the fixing device insertion hole 112s formed in the lower frame 112 to press the transformer upper plate 1 .

The fixing device 130 includes a fixing bolt 131 for pressing the transformer upper plate 1 through which a work tool is inserted and rotated. It is fixed to the transformer upper plate (1) to prevent it from being separated.

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

In addition, in the method of installing the transformer safety device according to another embodiment of the present invention, the loosening prevention bolt is inserted through the pressure flange through hole 132b to prevent the fixing bolt 131 from rotating in reverse. It further includes a bolt insertion step (S40).

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

Therefore, since the pressure flange 132 coupled to the fixing bolt 131 is prevented from rotating in reverse, the support frame 110 due to the reverse rotation of the fixing bolt 131 is the transformer upper plate (1). escape is prevented.

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

In the support body fastening step (S21), a screw line is formed on the outer side of the distal end of the support body 121 in the form of a hollow tube and is inserted into the support insertion groove 122b of the support connection member 122 having a corresponding screw line, and the The support connecting 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 .

The safety ring inserting step (S22) is performed by inserting a safety ring 124 including a circular rotating ring 124a and a fastening ring 124b vertically connected to the rotating ring 124a into the support adapter 123. This is the bonding step.

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 formed around the outer circumference of the support adapter 123. coupled to rotate along the

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

A screw line is formed on the outside of the support adapter 123 , and is fixed to each other by coupling with the screw line formed to correspond to the hollow inner side of the support body 121 .

Although the present invention has been described in detail through specific examples, it is intended to describe the present invention in detail, and the present invention is not limited thereto. It is clear that the transformation 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 scope of protection of the present invention will be made clear by the appended claims.

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

Claims (15)

A support frame comprising an upper frame surrounding the upper surface of the transformer upper plate, a lower frame in which a main body is perforated and a fixing device insertion hole is formed, and a side frame connecting both ends of the upper frame and the lower frame surrounding the lower surface of the transformer upper plate;
a support having one end coupled to the upper frame and installed; and
a fixing device for pressing the transformer top plate through the fixing device insertion hole to fix the support frame to the transformer top plate;
Transformer safety device including
The method according to claim 1,
The support is
Hollow tube-shaped support body;
a support connecting member provided with a support insertion groove on one side so that one side of the support body is inserted, and a bolt insertion hole formed on the other side for inserting a bolt;
a support adapter inserted into the other side of the support body; and
a safety ring rotatably coupled along an outer circumference of the support adapter;
Transformer safety device comprising a.
3. The method according to claim 2,
The safety ring is
A transformer safety device, characterized in that the plurality of hook rings are formed in plurality, each spaced apart from each other at a predetermined interval so that they can be coupled at the same time.
4. The method according to claim 3,
The safety ring is
a rotation 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 part protruding from the side; and
a fixing ring connected through the extension part so that the hook ring can be inserted;
Transformer safety device comprising a.
3. The method according to claim 2,
The support body,
A support screw line is formed along the circumference of one end,
The support insertion groove,
Transformer safety device, characterized in that the screw is formed on the inside so as to be coupled to the support screw.
The method according to claim 1,
The side frame is
Transformer safety device, characterized in that it is vertically connected to the upper frame and the lower frame so as to surround the transformer upper plate.
The method according to claim 1,
The fixing device is
a fixing bolt for pressing the transformer upper plate through the fixing device insertion hole;
Transformer safety device comprising a.
8. The method of claim 7,
The fixing bolt is
A fixing bolt body formed in a polygonal shape outside; and
a pressure plate provided at an end of the fixing bolt body to press the transformer upper plate;
Transformer safety device comprising a.
8. The method of claim 7,
The fixing device is
a pressure flange coupled to the outside of the fixing bolt and having pressure flange through-holes formed at regular intervals along the circumference; and
an anti-loosening bolt for pressing the lower frame through the pressurizing flange through-hole to prevent the fixing bolt from being loosened by reverse rotation;
Transformer safety device further comprising a.
10. The method of claim 9,
The anti-loosening 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 insertion 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 the fixing device penetrates the fixing device insertion hole formed in the lower frame and presses the transformer upper plate;
A method of installing a transformer safety device comprising a.
12. The method of claim 11,
The fixing device is
a fixing bolt which is rotated by a work tool and pressurizes the upper plate of the transformer;
A method of installing a transformer safety device comprising a.
13. The method of claim 12,
The fixing device is
a pressure flange coupled to the outside of the fixing bolt and having pressure flange through-holes formed at regular intervals along the circumference;
A method of installing a transformer safety device comprising a.
14. The method of claim 13,
a loosening prevention bolt insertion step of inserting a loosening prevention bolt through the pressure flange through-hole to prevent the fixing bolt from rotating in reverse;
Installation method of the transformer safety device, characterized in that it further comprises.
12. The method of claim 11,
The support installation step is,
a support body fastening step of fastening the support body to the upper frame;
a safety ring insertion step of inserting the safety ring into the support adapter after the support body fastening step is performed; and
an adapter insertion step of inserting the support adapter together with the safety ring into the support body;
A method of installing a transformer safety device comprising a.

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