KR102317578B1 - Rung for the Prefabricated cable tray and the cable tray containg the rung - Google Patents

Abstract

The present invention relates to a rung for a prefabricated cable tray and a prefabricated cable tray including the same, and more particularly, to a rung for a prefabricated cable tray used as a component for manufacturing a cable tray for organizing and guiding various cables, and such a prefabricated type It relates to a prefabricated cable tray manufactured using a rung for a cable tray.
According to a preferred embodiment of the present invention, a rung for a cable tray is a rung for a prefabricated cable tray that connects crossbars spaced apart at regular intervals with each other, comprising: a hollow rectangular pole-shaped body; a diaphragm which is respectively inserted into the front and rear of the body; and a bending groove formed in the body to correspond to the cut-out groove of the diaphragm after the diaphragm is inserted into the body to prevent movement of the diaphragm.
A prefabricated cable tray according to a preferred embodiment of the present invention includes a crossbar spaced apart at regular intervals; a plurality of rungs positioned at a lower end between the cross bars to connect the cross bars; and one or more screws for fastening the rung and the crosspiece.

Description

Rung for the Prefabricated cable tray and the cable tray containg the rung

The present invention relates to a rung for a prefabricated cable tray and a prefabricated cable tray including the same, and more particularly, to a rung for a prefabricated cable tray used as a component for manufacturing a cable tray for organizing and guiding various cables, and such a prefabricated type It relates to a prefabricated cable tray manufactured using a rung for a cable tray.

In the construction of houses, buildings, factories, etc., various electric wires required for buildings are usually installed and wired on the inside of the ceiling or floor or on the back side. use. That is, the cable tray will be referred to as a guide structure made of metal used to organize and guide cables.

However, once the cable tray is constructed, the electrical wiring facility must be perfect from the initial stage of construction because it is cumbersome to repair its defects. If the cable tray is corroded or damaged, the tray may fall to the floor or the electric wire may be hit, resulting in an accident such as disconnection or short circuit.

Typically, the cable tray is composed of a pair of side frames (cable tray main body) having a certain length and positioned on the left and right, respectively, and a crossbar (rung, hanger) coupled with a predetermined interval between the side frames, The coupling method of the side frame and the crossbar is variously adopted, such as a welding method, a screw method, and a fitting method.

In the case of the welding method, since the material is metal, it has a heavy weight and must go through a cumbersome process such as hot-dip galvanizing in consideration of their corrosiveness. There are problems in that it is difficult to separate and assemble, and it is difficult to recycle. There was a disadvantage that the strength was weak and warpage could occur due to welding.

Registered Utility Model Registration No. 20-0428604 (Registered on Oct. 4, 2006)

The problem to be solved by the present invention is to solve the above problems, and it is possible to reduce the unit cost of the product by using a material that is inexpensive and does not require plating, and to improve the productivity of the product by simplifying the manufacturing process of the product. It is to provide a rung for a prefabricated cable tray that can be assembled and a prefabricated cable tray including the same.

Another object of the present invention is to provide a prefabricated cable tray with excellent recyclability that can be easily separated when the cable tray is damaged or separated as needed, and the separated cable tray can be reused.

Objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

In order to achieve the above object, the present invention provides a rung for a cable tray according to a preferred embodiment of the present invention as a rung for a prefabricated cable tray that connects crossbars spaced apart at regular intervals to each other, and a hollow body is formed in the shape of a square column. ; a diaphragm which is respectively inserted into the front and rear of the body; and a bending groove formed in the body to correspond to the cut-out groove of the blocking plate after the blocking plate is inserted into the body to prevent movement of the blocking plate.

According to a preferred embodiment, the diaphragm has a 'C'-shaped cross-section having a flat surface and a right angle surface on both sides, one or more holes are formed in the center of the flat surface, and a cutout is formed in the upper or lower portion, , The cut-out groove is formed in the upper or lower portion of the right-angled surface on both sides.

A prefabricated cable tray according to a preferred embodiment of the present invention includes a crossbar spaced apart at regular intervals; a plurality of rungs positioned at a lower end between the cross bars to connect the cross bars; and one or more screws for fastening the rung and the crosspiece.

According to a preferred embodiment, the crosspiece includes a flat plate, an upper upper bent plate and a lower lower bent plate, wherein the upper bent plate and the lower bent plate are bent at an angle of 90 degrees to the flat plate, and the upper bent plate The plate is bent at 90 degrees to form a connected secondary bent plate.

According to a preferred embodiment, a screw groove corresponding to the hole of the rung is formed in the flat plate, and a concave groove surrounding the screw groove is formed inward.

As described above, the rung for prefabricated cable tray according to the present invention and the prefabricated cable tray including the same according to the present invention can be made of tin material that does not require plating instead of iron, so the material cost is low and the unit cost of the product can be reduced. Since it can be manufactured without going through complicated processes such as welding, welding, etc., it has the advantage of improving the productivity of the product.

In addition, since the cable tray of the present invention is of a prefabricated type, it can be easily separated when the cable tray is damaged or separated as needed, and has excellent recyclability that can reuse the separated cable tray.

1 is a perspective view of a rung for a prefabricated cable tray, according to a preferred embodiment of the present invention;
2 is an exploded perspective view of a rung for a prefabricated cable tray, according to a preferred embodiment of the present invention;
3 is a perspective view of a straight prefabricated cable tray in which a plurality of rungs for prefabricated cable trays are coupled according to a preferred embodiment of the present invention.
Figure 4 is a partially exploded perspective view of a straight prefabricated cable tray according to a preferred embodiment of the present invention, a partially exploded perspective view of Figure 3;
5 is a perspective view of a right-angled prefabricated cable tray in which a plurality of rungs for prefabricated cable trays are coupled according to another preferred embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims.

Detailed contents for carrying out the present invention will be described in detail with reference to the accompanying drawings below. Regardless of the drawings, like reference numbers refer to like elements, and "and/or" includes each and every combination of one or more of the recited items.

The terminology used herein is for the purpose of describing the embodiments, and is not intended to limit the present invention. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly defined in particular.

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

1 is a perspective view of a rung for a prefabricated cable tray according to a preferred embodiment of the present invention, and FIG. 2 is an exploded perspective view of the rung for a prefabricated cable tray of FIG. 1 .

1 and 2, the rung (10) of the present invention is a component used to manufacture a cable tray for organizing and guiding various cables, and the long crossbars (20, Figs. 3, 4, 5) on both sides Reference) is inserted/fixed between them to fix the crossbar to maintain a certain interval.

The rung 10 of the present invention has a prefabricated structure, and includes a body 12, a diaphragm 14, and a bent groove 12a.

The body 12 has a square pillar shape with a hollow in the center. It goes without saying that the cross section may have a "C" shape or a cylindrical column shape rather than a square pillar, and this will also fall within the scope of the present invention. The body 12 may be made of metal, particularly, tin (GI), which is inexpensive and does not require plating.

The blocking plate 14 is inserted into the front and/or rear of the body, respectively, and blocks the hollow of the body. The diaphragm 14 may also be made of metal and, like the body, may be made of tin (GI) that is inexpensive and does not require plating.

The diaphragm 14 has a substantially 'C'-shaped cross-section having a flat surface and a right angle surface on both sides of the flat surface.

One or more holes 14a are formed in the center of the flat surface (two holes are formed in pairs in the figure). The hole 14a is a part to which a screw is fastened for coupling with the crossbar 20 .

In addition, a cutout 14b is formed in the upper and/or lower portion of the flat surface. The cutout portion 14b is for easy insertion of the diaphragm 14 into the rung body 12 .

A cutout groove (14c) is formed in the upper or lower portion of the right angle surface on both sides of the diaphragm. The cut-out groove (14c) is firmly fixed without falling out of the body due to the bending groove (12a) formed by pressing (or punching) a part of the body after the diaphragm 14 is inserted into the body 12. formed in order to be That is, after inserting the diaphragm into the body, a bending groove 12a is formed in a portion of the body at a position corresponding to the cut-out groove 14c of the diaphragm plate using punching, etc., and the bending groove 12a of the body and The cut-out grooves (14c) of the diaphragm are engaged with each other to firmly fix the diaphragm in the body.

3 is a perspective view of a straight prefabricated cable tray in which a plurality of rungs for prefabricated cable trays are coupled according to a preferred embodiment of the present invention, and FIG. 4 is a partially separated perspective view of FIG. 3 .

3 and 4 , it shows a straight cable tray in which one or more rungs 10 are formed between the straight crossbars 20 . The present invention is a prefabricated cable tray for fastening the rung 10 between the crosspiece and the crosspiece using screws.

The crossbar is made of metal. More preferably, in the present invention, since the rung is not fastened to the crossbar by welding, it can be made of galvanized material (GI) that is inexpensive and does not require plating.

The crossbar 20 includes a flat plate 21 , an upper bent plate 22 , and a lower bent plate 24 .

One or more through-holes are formed in the side surface of the flat plate 21 , which serves as an observation window through which the tray mounted in the cable tray can be visually confirmed.

The upper bent plate 22 bent by 90 degrees on the upper part of the flat plate and the lower bent plate 24 bent by 90 degrees on the lower part of the flat plate protect the operator from being injured by the edge, and at the same time, the cable to be placed inside is bent at the edge. to prevent damage by

The upper bending plate 22 is bent at 90 degrees to form a connected secondary bending plate 23, which is also formed to prevent damage to the cable and injury to the operator.

A screw groove 26 corresponding to the hole 14a of the rung is formed in the flat plate 21 . By fastening the screw 30 through the screw groove 26 of the crosspiece and the hole 14a of the rung, the crosspiece and the rung can be assembled in a prefabricated manner.

A concave groove 25 surrounding the screw groove is formed around the screw groove, which is formed in the inner direction of the crossbar, that is, in the same direction as the upper bent plate 22 and the lower bent plate 24 . This is to minimize the head of the screw fastened to the screw groove collided with by an external object. If the head of the screw collides with an external object, the head may be damaged and the screw may not function properly. In order to prevent this, a concave groove is formed around the screw groove to protect it from protruding to the outside so that it becomes the head of the screw.

Although the embodiments of the present invention have been described with reference to the above and the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can practice the present invention in other specific forms without changing the technical spirit or essential features. You will understand that there is Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

10: rung
12: body
12a: bending groove
14: blocking board
14a: hole
14b: cutout
14c: bending groove
20: crossbar
21: upper bent plate
22: second bending plate
23: lower bending plate
24: concave groove
26: screw groove
30: screw

Claims (7)

In a rung for a prefabricated cable tray that connects crossbars spaced at regular intervals to each other,
A hollow rectangular column-shaped body;
a diaphragm which is respectively inserted into the front and rear of the body; and
After the diaphragm is inserted into the body, a bending groove is formed in the body to correspond to the cut-out groove of the diaphragm to prevent movement of the diaphragm;
The diaphragm has a 'C'-shaped cross-section having a flat surface and a right angle surface on both sides,
One or more holes are formed in the center of the flat surface, and a cutout is formed in the upper or lower portion to form a space spaced apart from the body when inserted into the body to facilitate insertion,
A rung for prefabricated cable trays, characterized in that the cutout grooves are formed on the upper or lower portions of both right angle surfaces. delete rungs spaced at regular intervals;
a plurality of rungs positioned at a lower end between the cross bars to connect the cross bars; and
at least one screw fastening the rung and the crosspiece;
The crossbar includes a flat plate, an upper bent plate of the upper part, and a lower bent plate of the lower part,
The upper bent plate and the lower bent plate are bent at an angle of 90 degrees to the flat plate,
The upper bent plate is bent at 90 degrees to form a connected secondary bent plate,
A screw groove corresponding to the hole of the rung is formed in the flat plate,
A prefabricated cable tray, characterized in that a concave groove surrounding the screw groove is formed in the inner direction, and the head of the screw is inserted into the concave groove when combined with the screw to prevent damage by external objects. delete delete 4. The method of claim 3,
The rung is
A hollow rectangular column-shaped body,
blocking plates respectively inserted into the front and rear of the body;
After the baffle plate is inserted into the body, it is formed in the body to correspond to the cut-out groove of the baffle plate and includes a bending groove to prevent movement of the baffle plate. 7. The method of claim 6,
The diaphragm has a 'C'-shaped cross-section having a flat surface and a right angle surface on both sides,
One or more holes are formed in the center of the flat surface, and a cutout is formed in the upper or lower portion,
The prefabricated cable tray, characterized in that the cut-out groove is formed in the upper or lower portions of the right angle faces on both sides.

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