KR100979809B1 - Fall prevention device for steel tower work - Google Patents

Abstract

Fall prevention device for working steel tower of the present invention and the guide rail is installed on the steel tower; A trolley connected to the worker and slid to the guide rail and fixed to the guide rail when the worker falls to prevent the fall of the worker; A left / right body provided with a locking part that is slid or separated from each other on both sides of the width direction of the guide rail when being variable; It is installed on the left / right body is connected to the worker, and in close contact with the guide rail when the worker includes a fixing portion for limiting the sliding of the left / right body.

According to the present invention, since the trolley is separated or combined at any position of the guide rail installed in the steel tower, the operator can easily move the trolley to the guide rail close to the working position and work. In addition, as in the prior art, there is no need to interconnect a plurality of guide rails installed in the steel tower, and the position design of the guide rails installed in the steel tower is not necessary because the direction of the turning means that can change the direction of the connection portion It is easy to install.

Pylon, work, crash, prevent, gap, variable, separation

Description

FALL PROTECT APPARATUS FOR WORKING ON IRON TOWER}

The present invention relates to a fall prevention device for working on a steel tower, and more particularly to a fall prevention device for working on a steel tower that can prevent the fall of the worker working on the steel tower.

In general, a fall prevention device for working on a steel tower is a device that can prevent a worker from falling in consideration of dangerous situations such as when installing and maintaining a steel tower.

Such a prior art of the fall prevention device for steel tower work is a vertical fall prevention device disclosed in the Republic of Korea Patent Publication No. 2004-0101142.

Vertical fall prevention device according to the prior art is a rigid guide rail installed on the outside of the steel tower, the four wheels are mounted on both sides of the lower end of the trolley sliding on the guide rail, hinged to the trim formed in the center of the trolley rotational operation It includes a 'L' shaped fixture that is in close contact with or spaced from the bottom of the seam guide rail, and a spring positioned on the slit to support the fixture so that the fixture is always spaced from the bottom of the guide rail by elastic force. .

In addition, the fastener is provided with a fastener for fastening the life rope to be connected to a safety belt worn by the operator or a safety jacket on one side.

As such, the vertical fall prevention device of the prior art configured to fasten the life-saving rope connected to the safety belt worn by the operator or the safety jacket to the fastener of the fixture.

The worker then climbs to the top of the pylon while sliding the trolley onto the guide rails. During climbing, if a worker falls from the tower, the fixture connected to the life rope is rotated by the worker's own weight. Rotation of the fixture closes one side of the guide rail to the bottom of the guide rail, thereby limiting the sliding of the trolley. Therefore, the worker is suspended by the life rope on the trolley fixed to the guide rail, thereby preventing the fall.

However, the vertical fall prevention device of the prior art has a problem that the trolley sliding to the guide rail is not separated from the guide rail except for both ends of the guide rail.

Therefore, in order for the worker to work at a position that is out of the proper distance from the guide rail, the length of the life rope had to be increased. However, when the worker falls during the work, the worker falls down by the length of the extended life rope, so there is a limit to increasing the length of the life rope.

Therefore, many guide rails must be installed in various places and interconnected for smooth operation of the tower. In addition, the connection portion of the plurality of guide rails required a separate direction change means for turning the trolley so that the trolley can be slid and redirected without being separated from the guide rail.

This is a very complicated and inconvenient problem to install the guide rail in the pylon.

The present invention is to solve the problems of the prior art, an object of the present invention is to provide a fall prevention device for working the pylon detachable or combined trolley at any position of the guide rail installed in the tower.

Fall prevention device for working the pylon of the present invention for achieving the above object is a guide rail which is installed in the pylon; A trolley connected to the worker and slid to the guide rail and fixed to the guide rail when the worker falls to prevent the fall of the worker; A left / right body provided with a locking part that is slid or separated from each other on both sides of the width direction of the guide rail when being variable; It is installed on the left / right body is connected to the worker, and in close contact with the guide rail when the worker includes a fixing portion for limiting the sliding of the left / right body.

The spacing control unit is installed to penetrate the left / right body in the transverse direction, the left and right body is the spacing bar sliding; And a main body binding means for coupling or separating the left / right main body sliding to the gap bar to the gap bar.

The main body binding means has a non-circular cross section of the spacing bar, and a binding groove is formed in the circumferential direction on an outer surface thereof, and is rotatably installed on the left / right main body by being fitted to the spacing bar through a fitting hole. When positioned in the groove, it is provided with a binding port for locking or releasing the binding groove to control the sliding of the left / right body by the rotation operation, the fitting hole is in the cross-sectional shape of the spacer bar so that the spacer bar is fitted It is formed in a corresponding shape.

The fixing part is installed to penetrate the left / right body in the transverse direction, the center bar to which the left / right body is slid; It is fitted to the center bar rotatably installed and connected to the worker, and includes a fastener that is in close contact or spaced apart from the surface of the guide rail when rotated.

The first elastic member is further provided on the left / right body so that the binding sphere is rotated by an elastic force to support the binding sphere.

The fastener is provided with a pair, and the pair of fasteners are further provided on the center bar to be in close contact with the left and right body by elastic force, respectively, and further provided with a second elastic member supporting the pair of fasteners.

In addition, one side of the fastener is formed with a sliding groove for sliding both sides of the guide rail in the width direction is introduced, the other side is installed through the fastener and the outer diameter is extended at both ends to prevent the fixture from sliding off A guide bar equipped with a release prevention device is provided.

On the other hand, rotatably installed in the guide bar is further provided with a connecting ring connected to the worker.

The present invention has the advantage that the operator can easily move the trolley to the guide rail close to the working position because the trolley is separated or combined at any position of the guide rail installed in the steel tower.

In addition, as in the prior art, there is no need to interconnect a plurality of guide rails installed in the steel tower, and the position design of the guide rails installed in the steel tower is not necessary because the direction of the turning means that can change the direction of the connection portion It is easy to install.

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

Fall prevention device for a steel working according to the present embodiment is composed of a guide rail and a trolley detachable or combined at any position of the guide rail while being connected to the operator and slid in a state caught on the guide rail.

The guide rail is composed of a vertical guide rail installed in the vertical part of the steel tower, and a horizontal guide rail installed in the horizontal part.

1 and 2 are attached to the structure of the guide rail and the trolley of the fall prevention device for working the steel tower in this embodiment.

Referring to FIGS. 1 and 2, the guide rail 100 according to the present embodiment uses 'H' type or 'T' type steel.

The trolley 200 is installed on the left and right main body 220 and 230 and the left and right main body 220 and 230 coupled to each other so that the interval is variable by the gap adjusting unit 210, and is connected to the worker and is downward due to the fall of the worker. When the force is applied to the guide rail 100 is made of a fixing part 240 in close contact with the left / right body 220, 230 to limit the sliding.

In addition, when the distance is changed by the gap adjusting part 210 on the opposing surfaces of the left and right main bodies 220 and 230, each of the guide rails 100 is slid to the guide rail 100 by being caught on both sides in the width direction of the guide rail 100, Alternatively, a locking part 250 separated from both sides in the width direction of the guide rail 100 is provided.

The catching part 250 uses a roller which is rolled on the guide rail.

The gap adjusting unit 210 includes a gap bar 211 penetrating the left / right main body 220 and 230 in the horizontal direction, and a left / right main body 220 and 230 sliding into the gap bar 211 and sliding of the gap bar 211. It consists of a body binding means 212 for fixing or separating at any position.

Space bar 211 is provided with a pair on the top of the left / right body (220,230).

One side of the spacer bar 211 is fixed to the left main body 220. On the other side, the right main body 230 is slidably coupled.

The spacing bar 211 is divided into a slip part 211a, which is a part in which the right main body 230 slides, and an non-slip part 211b that does not slide. The slip portion 211a has a non-circular cross section. At the boundary between the slip portion 211a and the non-slip portion 211b, a binding groove 212a of a predetermined depth is formed in the circumferential direction.

The main body binding means 212 is composed of a binding hole 212b fitted to the slip portion 211a and rotatably installed in the binding groove 212a. The binding hole 212b has a fitting hole 212c into which the slip part 211a is fitted.

The binding port 212b is fitted to the slip portion 211a after the right main body 230 is fitted to the slip portion 211a of the spacer bar 211, and is installed in close contact with the right main body 230.

The fitting hole 212c is formed in a shape corresponding to the cross-sectional shape of the slip portion 211a. And, when the binding sphere 212b is located in the binding groove 212a, the binding groove 212a is designed so that the binding sphere 212b is rotatable.

Thus, when the binding port 212b is rotated at the position of the binding groove 212a, the fitting hole 212c coincides or is inconsistent with the cross-sectional shape of the slip portion 211a. And when the fitting hole 212c matches the cross-sectional shape of the slip part 211a, the binding hole 212b slides to the slip part 211a. Therefore, it is controlled that the binding port 212b slides to the slip portion 211a, and eventually the sliding of the right main body 230 is controlled.

On the other hand, in order to prevent the binding port 212b installed while being fitted to the slip portion 211a from being separated from the slip portion 211a, the right main body (2b) is in close contact with the side surface of the right main body 230. A binding cover 212d coupled to 230 is provided. A central portion of the binding hole cover 212d is formed so that the slip portion 211a is fitted therethrough.

A first elastic member 212e is provided on the right main body 230 to support the binding port 212b so that the binding port 212b is rotated by an elastic force. A spring is used as the first elastic member 212e.

The fixing part 240 includes a center bar 241 installed to penetrate the left and right main bodies 220 and 230 in the horizontal direction, and a fastener 242 fitted to the center bar 241 to be rotated and connected to an operator.

The center bar 241 is located between the pair of spacer bars 211.

And, one side of the center bar 241 is fixed to the left main body 220, the other side is coupled to the right main body 230 is sliding.

The fixture 242 is installed so that the center bar 241 is fitted to the center portion to be rotated. And a pair of fasteners 242 are provided. The second elastic member 243 is provided at the center bar 241 so that the pair of fasteners 242 are in close contact with the left and right main bodies 220 and 230 by elastic force. As the second elastic member 243, a circular spring in which repulsive force is generated is used.

On the other hand, one side of the fastener 242 is formed with a sliding groove 242a through which both sides in the width direction of the guide rail 100 is introduced, and is installed through the pair of fasteners 242 on the other side of the fastener 242. Guide bar 244 is provided. The pair of fasteners 242 are slidably installed in the guide bar 244.

Both ends of the guide bar 244 are provided with a departure prevention opening 245 having an outer diameter extended. Thus, the fixture 242 is prevented from being separated from the guide bar 244.

On the other hand, the length of the guide bar 244 is formed within the range that the right main body 230 is not deviated from the spacer bar 211 and the center bar 241 by sliding.

One side is inserted into the guide bar 244 is provided with a connecting ring 246 rotatably installed. The connecting ring 246 is connected to the life rope connected to the safety belt worn by the operator or the safety jacket.

A third elastic member 247 supporting the link ring 246 is installed on the guide bar 244 so that the link ring 246 is rotated by the elastic force. The spring spring is used as the third elastic member 247.

Hereinafter, the operation and effects of the present embodiment configured as described above will be described.

Referring to FIG. 3, in order to separate the trolley 200 from the guide rail 100, the binding hole 212b is first rotated. At this time, the fitting hole 212c of the binding hole 212b is made to match the cross-sectional shape of the slip portion 211a of the spacer bar 211.

Referring to FIG. 4, when the fitting hole 212c of the binding hole 212b coincides with the cross-sectional shape of the slip portion 211a of the spacer bar 211, the right main body 230 slips on the spacer bar 211. It slides in the part 211a. Therefore, the interval between the left and right main body 220, 230 is widened. At this time, the locking portions 250 of the left and right main bodies 220 and 230 hanging on the guide rail 100 are spaced apart from the guide rail 100. And the trolley 200 can be separated from the guide rail 100.

On the other hand, in order to couple the separated trolley 200 to the guide rail 100, the process of separating the trolley 200 from the guide rail 100 may be performed in reverse.

That is, referring to FIG. 5, in a state in which the guide rail 100 is inserted between the left and right main bodies 220 and 230 having widened intervals, the engaging portion 250 of the left and right main bodies 220 and 230 is guide rail 100. The right main body 230 is slid on the spacer bar 211 so as to be caught.

In the binding hole 212b, the fitting hole 212c is located in the slip part 211a of the spacer bar 211 and is in a slidable state. Therefore, sliding of the right main body 230 is possible.

When the binding sphere 212b slides on the slip portion 211a of the spacer bar 211 by sliding the right main body 230, the binding sphere 212b is positioned in the binding groove 212a of the spacer bar 211. 1 The binding port 212b is rotated by the elastic member 212e.

As shown in FIG. 6, when the binding hole 212b is rotated, the fitting hole 212c does not coincide with the cross-sectional shape of the slip part 211a. Therefore, the binding port 212b is caught in the binding groove 212a. Thus, the sliding of the right main body 230 is limited, the left / right main body 220, 230 is fixed while maintaining a constant interval.

On the other hand, when the operator falls down during the operation while the trolly 200 is coupled to the guide rails 100, the downward force is applied to the guide bar 244 of the fixture 242 due to the operator's fall. 242 is rotated.

When the fixture 242 is rotated, the inner surface of the sliding groove 242a of the fixture 242 is in close contact with the guide rail 100, the trolley 200 is fixed to the guide rail 100. This prevents the worker from falling.

Various embodiments of the present invention described above should not be construed as limiting the technical spirit of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention, as will be apparent to those skilled in the art.

1 is an exploded view showing an embodiment of a trolly of the fall prevention apparatus for working with a steel tower according to the present invention,

2 is a perspective view showing an embodiment of a trolley of the embodiment of FIG.

FIG. 3 is a view illustrating an example in which the binding hole of the trolley, which is the embodiment of FIG. 1, is rotated to match the cross-sectional shape of the slip portion of the spacer bar;

4 is a view illustrating an example in which an interval of a trolley according to the embodiment of FIG. 1 is extended;

5 is a view showing an example in which the binding hole of the trolley, which is the embodiment of FIG. 1, is in the original position and the fitting hole of the binding hole is inconsistent with the cross-sectional shape of the slip portion of the spacer bar;

FIG. 6 is a view illustrating an example in which a distance between trollys according to the embodiment of FIG. 1 is reduced; FIG.

<Description of Symbols for Main Parts of Drawings>

100: guide rail 200: trolley

210: spacing adjusting unit 211: spacing bar

212: body binding means 220, 230: left / right body

240: fixing part 250: locking part

Claims (5)

delete A guide rail installed on the pylon; And a trolley connected to the worker and slid to the guide rail and fixed to the guide rail when the worker falls to prevent the worker from falling. The trolly A left / right body which is coupled to each other to be variablely spaced by a space adjusting unit, and has locking portions that are respectively slid or separated by both sides of the guide rail when the space is varied; Is installed on the left / right body is connected to the worker, and in close contact with the guide rail when the worker includes a fixing portion for limiting the sliding of the left / right body, The gap adjusting unit A spacing bar installed to penetrate the left / right body in a lateral direction and sliding the left / right body; Falling prevention device for a pylon operation comprising a body binding means for coupling or separating the left / right body sliding to the spacing bar to the spacing bar. 3. The method of claim 2, The main body binding means The cross section of the spacing bar is formed in a non-circular shape, the binding groove is formed in the circumferential direction on the outer surface, Is inserted into the spacing bar through a fitting hole so as to be rotatably installed in the left / right body, when positioned in the binding groove, is locked or released to the binding groove by a rotation operation to control the sliding of the left / right body. With a fastener, The fitting hole is a fall prevention device for a pylon operation, characterized in that formed in a shape corresponding to the cross-sectional shape of the spacing bar so that the spacing bar is fitted. The method of claim 3, wherein The fixing part A center bar installed to penetrate the left / right body in a lateral direction and sliding the left / right body; Falling prevention device for a pylon work, characterized in that it is fitted to the center bar rotatably installed and connected to the operator, the fixture is in close contact or spaced apart from the surface of the guide rail during the rotation. The method of claim 4, wherein It is further provided with a first elastic member installed on the left / right body so that the binding sphere is rotated by the elastic force to support the binding sphere, The fixture is provided with a pair, The pair of fasteners are further provided on the center bar to be in close contact with each of the left and right body by the elastic force is further provided with a second elastic member for supporting the pair of fasteners, One side of the fixture is formed with a sliding groove for sliding both sides of the guide rail in the width direction is introduced, the other side is installed through the fixture and the separation of the outer diameter is extended on both ends to prevent the fixture from sliding off There is a guide bar equipped with a globe, Falling prevention device for a pylon operation, characterized in that the rotatable to the guide bar is further provided with a connecting ring connected to the worker.

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