KR101942023B1 - Column steel ladder structure using detachable clamp - Google Patents

Abstract

The present invention relates to a column steel ladder structure using a detachable clamp, including an H-shaped column including a pair of separated flanges and a web connecting the pair of flanges; and a plurality of clamps spaced apart from the H-shaped column at regular intervals to form a ladder. The clamp includes a pair of coupling portions respectively and detachably coupled to the flanges; and a connecting portion connecting the coupling portions to each other. The connecting portion includes a pair of connecting bars respectively coupled to the coupling portions, having screws in opposite directions on the outer surfaces, and arranged on a straight line and a connecting tube in which a screw hole is formed so that the connecting bars are inserted and screw-coupled and which adjusts the gap between the connecting bars as a result of rotation. According to the present invention, welding that may deteriorate the fatigue stability of the H-shaped column can be omitted, and thus stability is ensured with respect to structural fatigue and brittle fracture. Accordingly, the stability and durability of the entire structure can be built to the same as design values. In addition, a ladder can be formed through simple attachment, and thus anyone can install the latter with safety.

Description

[0001] The present invention relates to a column ladder structure using a detachable clamp,

The present invention relates to a column steel ladder structure using a detachable clamp, and more particularly, to a technique for forming a ladder by coupling a detachable clamp to an H-type column.

Generally, at the construction site, steel beams and beams are installed with a plurality of H beams. In such a working environment, reinforcing bars are welded to the steel column to facilitate the worker.

Korean Patent No. 10-1744095 entitled "Jig for re-installation of ladder of H-beam steel" (see Figs. 4A to 4B) is disclosed in the above-mentioned technique. This prior art has a first plate and a second plate which are in perpendicular contact with the upper surface of the web of the H-shaped steel and the first flange inner surface of the H-shaped steel; A connecting portion connecting the first plate and the second plate to define an interval therebetween; And an outer side surface of the first plate is hooked to a horizontal connecting bar of a ladder material welded and fixed to the H-shaped steel, and the receiving plate of the second plate is connected to the H- And a horizontal connection bar of a ladder material to be welded to be fixed to the ladder is welded while the horizontal connection bar of the ladder is welded. It is an object of the present invention to provide a jig for re-installation of a ladder of H-shaped steel which is remarkably increased.

However, in the above-mentioned prior art, there is a problem that the fatigue stability of the H-shaped steel can be lowered by directly welding the ladder made of the steel material to the web of the H-shaped steel, and the fatigue stability of the H- It is possible to construct a structure having stability and durability that is not based on the design value of the ladder, and there is a problem that fire may occur when the ladder is welded to the H-shaped steel.

Therefore, it is required to develop a ladder installation method capable of forming a ladder quickly and easily, and further ensuring the stability and durability of a building by easily providing a ladder to the H-shaped steel without welding.

Patent 1: Korean Patent No. 10-1744095

In order to solve the above problems, the present invention is characterized in that a pair of engaging portions detachably attachable to each of a pair of flanges of an H-type column is coupled, a pair of connecting bars are provided on each of the pair of engaging portions, The columnar steel ladder structure using the removable clamp which can easily form the ladder by detachment and attachment and does not deteriorate the fatigue stability of the H-shaped column can be obtained by connecting the interconnecting bars through the H- .

A column steel ladder structure using a removable clamp according to an example of the present invention includes: an H-shaped column including a pair of spaced apart flanges and a web connecting the pair of flanges; And a plurality of clamps spaced apart from the H-shaped pillars at regular intervals to form a ladder, wherein the clamp comprises: a pair of engaging portions detachably coupled to the pair of flanges; And a connecting portion connecting the pair of connecting portions to each other, wherein the connecting portion includes a pair of connecting bars coupled to the pair of connecting portions, And a connection pipe for allowing the pair of connection bars to be spaced from each other when the pair of connection bars are inserted and screwed into the connection hole.

The engaging portion may include a first member having a groove formed therein so as to be in contact with an inner surface and a side surface of the flange, a tooth formed on one side thereof and inserted into the first member for sliding movement, A second member provided on an inner side of the first member and engaged with the teeth of the second member so as to be engaged with the outer surface of the flange as the one side is slidably moved, And an adjusting screw for slidably moving the sliding member.

Further, it may further comprise a rubber pad provided on a surface of the first member which is in contact with the inner surface of the flange and / or a surface of the second member which is in contact with the outer surface of the flange.

The length of the pair of connection bars may be different from each other, and the connection pipe may be installed adjacent to one of the pair of coupling parts.

The apparatus may further include a cover coupled to the one side coupling portion, which is disposed adjacent to the coupling tube, and covers the coupling tube.

Further, the cover may be hinged to the one-side coupling portion.

The lid may be slidably coupled to the one side coupling portion.

The lid may be a flat plate.

Further, the cover may be characterized by being of a letter type or a letter type.

The cover may be arc-shaped.

Through the present invention, since the welding that reduces the fatigue stability of the H-shaped column can be omitted, stability against the fatigue and brittle fracture of the structure is ensured, so that the stability and durability of the entire structure can be made the same as the design value.

Further, since the ladder can be formed only by simple attachment, anyone can safely install the ladder.

In addition, by simply removing and recovering after completion of the construction of the building, the recovery operation is simple, and the clamp is not damaged during the recovery operation, so that it can be recycled at other sites in the future.

FIG. 1A is a perspective view illustrating a column steel ladder structure using a removable clamp according to an example of the present invention. FIG.
1B is a perspective view showing a clamp according to an example of the present invention.
1C is a perspective view showing a state in which the clamp of FIG.
FIGS. 2A to 2D illustrate an embodiment in which the connecting bars are formed to have different lengths so that the connecting pipe is disposed close to the one connecting part, and the U-shaped lid is arranged on the connecting part to be hinged and slidingly coupled to the connecting part. .
Figs. 3A to 3C are views showing an embodiment in which the cover of Fig. 2 is installed in an arc shape.
4 is a drawing of the prior art.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In the drawings, like reference numerals are used to refer to like elements throughout the drawings, even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, May be "connected "," coupled "or" connected ".

1 to 3, the structure of a column steel ladder using a detachable clamp according to an example of the present invention will be described in detail.

A column steel ladder structure using a removable clamp according to an example of the present invention includes an H-shaped column (12) including a pair of spaced apart flanges (12) and a web (14) connecting the pair of flanges 10); And clamps 20 spaced at a predetermined distance from the H-pillars 10 to form a ladder, wherein the clamp 20 is detachably coupled to each of the pair of flanges 12, A pair of engaging portions 22; And a connecting portion (24) connecting the pair of connecting portions (22), wherein the connecting portion (24) is coupled to each of the pair of connecting portions (22) A pair of connecting bars 242 disposed in a straight line and a screw hole in which the pair of connecting bars 242 are inserted and screwed into the inside are formed and the pair of connecting bars 242 (Not shown).

The present invention can be replaced with a method of forming a ladder by welding reinforcing bars or the like to a steel column at a construction site where an H-beam is used as a steel column.

The column steel ladder structure using the detachable clamp of the present invention can be formed by vertically installed H-shaped pillars 10 and clamps 20 spaced apart from each other at regular intervals in the H-shaped pillars 10 .

The H-pillar 10 may be a conventional H-shaped steel formed by a pair of spaced apart flanges 12 and a web 14 connecting the pair of flanges 12.

The H-shaped column 10 may be provided with a clamp 20. The clamp 20 may be installed on the H-type column 10 so as to be vertically spaced apart from each other. Clamps 20 are spaced apart from the H-pillars 10 at regular intervals and can be used as a ladder for workers to climb up and down on a building construction site.

The clamp 20 of the present embodiment includes a pair of coupling portions 22 and a coupling portion 24 and the coupling portion 24 may include a pair of coupling bars 242 and a coupling pipe 246.

The engaging portion 22 can be detachably coupled to the flange 12 of the H-shaped column 10. The engaging portion 22 may include a first member 222, a second member 224, and an adjusting screw 226.

The first member 222 of the engaging portion 22 may be disposed in contact with the inner surface and the side surface of the flange 12. That is, the first member 222 may be formed with a groove to be installed so as to be in contact with the inner surface and the side surface of the flange 12. The inner surface of the flange 12 refers to the side on which the pair of flanges 12 face each other, and the outer surface refers to the opposite surface. The side surface of the flange 12 refers to the outer surface and the peripheral surface in contact with the inner surface.

The second member 224 of the engaging portion 22 can be slidably engaged with the first member 222. [ In other words, one side of the second member 224 may be coupled such that teeth are formed and inserted into the first member 222 and slidably moved. Further, the other side of the second member 224 protrudes outward from the one side and moves together with the one side to be close to or away from the outer surface of the flange 12. That is, the first member 222 may be formed with a substantially circular coupling groove that is cut to one side so that the second member 224 can be slidingly coupled. One side of the circular shape of the second member 224 may be inserted into the coupling groove to be slidably coupled, and the other side may protrude outward through the incised portion.

The adjusting screw 226 of the engaging portion 22 may be provided on the inner side of the first member 222. The adjustment screw 226 is threaded around and is screwed into the teeth of the second member 224. Accordingly, as the adjusting screw 226 rotates, the second member 224 slides and the other side of the second member 224 contacts or falls off the flange 12.

And rubber pads provided on the surface of the first member 222 that is in contact with the inner surface of the flange 12 or / and the surface of the second member 224 that is in contact with the outer surface of the flange 12. That is, a rubber pad may be provided on the surface of the first member 222 that is in contact with the inner surface of the flange 12, or a rubber pad may be provided on the surface of the second member 224 that is in contact with the outer surface of the flange 12, Pad. The rubber pad increases the frictional force between the engaging portion 22 and the flange 12 and can be firmly engaged.

The clamp 20 includes a connecting portion 24 that interconnects a pair of connecting portions 22 which may include a pair of connecting bars 242 and a connecting pipe 246 .

One side of each of the pair of connection bars 242 may be connected to each of the pair of engagement portions 22 and arranged in a straight line. The other side of each of the pair of connection bars 242 may be arranged facing each other with screws formed in opposite directions. Accordingly, one side may be coupled to the coupling portion 22, and the other side may be coupled to each other by a coupling tube 246 described later. The connecting bar 242 may be a steel bar, a steel pipe or the like, but it is desirable that the connecting bar 242 has a rigidity such that it can be used for a ladder used by an operator.

The pair of connecting bars 242 can be coupled by the connecting pipe 246 and can be spaced from each other. The connection pipe 246 may be formed with a screw hole so that a pair of connection bars 242 can be inserted and engaged. That is, the connection pipe 246 has a hollow shape and a screw in the opposite direction is formed on the inner side so that the pair of connection bars 242 can be coupled with each other, and the distance between the connection bars 242 can be adjusted.

The pair of connection bars 242 may have the same length or may have different lengths. When the lengths of the connecting bars 242 are different from each other, the connecting pipe 246 may be installed close to the one connecting part 22, i.e., the one flange 12. In this case, it is possible to prevent a problem that the foot of the worker moving up and down the ladder is not obstructed and the foot is unlocked by being stepped on.

When the connection pipe 246 is installed close to the one coupling part 22, the cover 30 can be coupled to the one coupling part 22. The lid 30 may be coupled to the hinge 32 or may be slidingly coupled to the engaging portion 22. That is, after the lid 30 is rotated or opened by sliding, the connection pipe 246 may be rotated to adjust and cover the lid. The connection tube 246 may be covered by the lid 30 to prevent unexpected unwinding and increase stability.

The lid 30 can be formed in various shapes. First, the lid 30 may be formed as a flat flat plate and cover only the upper side of the connection pipe 246. Also, the lid 30 may be formed in a square shape. In this case, the LR type can be installed so as to cover the upper side and the outer side so that the connecting pipe 246 is not rotated by the foot of a person climbing up and down the ladder. Or the flat plate may be formed in a U shape to cover both the inside and the outside of the connection pipe 246 as well as the top side. In addition, the flat plate may be formed in a shape similar to arc shape, that is, The lid 30 can prevent the connection pipe 246 from being loosened by the operator's uplift, thereby increasing the structural stability of the ladder.

The lid 30 can cover the connection pipe 246 or the like to prevent rotation of the connection pipe 246 and at the same time prevent the inflow of foreign matter into the connection pipe 246, thereby improving usability.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all the constituent elements may be constituted or operated selectively in combination with one or more. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: H-pillars
12: Flange
14: web
20: Clamp
22:
222: first member
224: second member
226: Adjusting screw
24: Connection
242: Connection bar
246: Connector
30: Cover
32: Hinge

Claims (10)

delete An H-shaped column including a pair of spaced apart flanges and a web connecting the pair of flanges; And
And clamps spaced apart from the H-pillars at regular intervals to form a ladder,
The clamp
A pair of engaging portions detachably coupled to each of the pair of flanges; And
And a connecting portion interconnecting the pair of coupling portions,
The connecting portion
A pair of connecting bars each of which is coupled to each of the pair of connecting portions and formed on the outer surface in a direction opposite to the direction of the connecting bars and which is disposed on a straight line, And a connection pipe for adjusting the spacing of the pair of connection bars,
The engaging portion may include a first member having a groove formed thereon so as to be in contact with an inner surface and a side surface of the flange, a tooth formed on one side thereof and inserted into the first member to be slidably moved, A second member which is provided on the inner side of the first member and is screwed to engage with the teeth of the second member so that the second member is slidably engaged with the flange, Wherein the adjustable screw comprises an adjustable screw to move the ladder structure.
The method of claim 2,
Further comprising a rubber pad provided on a surface of the first member which is in contact with the inner surface of the flange and / or a surface of the second member which is in contact with the outer surface of the flange.
delete An H-shaped column including a pair of spaced apart flanges and a web connecting the pair of flanges; And
And clamps spaced apart from the H-pillars at regular intervals to form a ladder,
The clamp
A pair of engaging portions detachably coupled to each of the pair of flanges; And
And a connecting portion interconnecting the pair of coupling portions,
The connecting portion
A pair of connecting bars each of which is coupled to each of the pair of connecting portions and formed on the outer surface in a direction opposite to the direction of the connecting bars and which is disposed on a straight line, And a connection pipe for adjusting the spacing of the pair of connection bars,
The length of the pair of connection bars may be different from each other, the connection pipe may be installed close to one of the pair of coupling parts,
Further comprising a cover coupled to the one-side coupling part and closely covering the coupling tube, the coupling tube being disposed adjacent to the one coupling part.
The method of claim 5,
Wherein the lid is hingedly coupled to the one coupling. ≪ RTI ID = 0.0 > 1 < / RTI >
The method of claim 5,
And the lid is slidably coupled to the one-side coupling part.
The method of claim 5,
Wherein the lid is a flat plate.
The method of claim 5,
Wherein the lid is of the L-shaped or U-shaped.
The method of claim 5,
Wherein the lid is arc-shaped. ≪ RTI ID = 0.0 > 11. < / RTI >

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