KR200451493Y1

KR200451493Y1 - cable tray

Info

Publication number: KR200451493Y1
Application number: KR2020100008237U
Authority: KR
Inventors: 김영구
Original assignee: 합동전기공업(주)
Priority date: 2010-08-06
Filing date: 2010-08-06
Publication date: 2010-12-17

Abstract

The present invention relates to a prefabricated cable tray, an embodiment of the present invention is a plurality of side bands arranged side by side, a plurality of rungs lying between the adjacent side bars, coupling fixing portion for fixing the side bars and the rung And on the surface facing the end of the rung and the side stand is provided with a position specifying portion for positioning the rung relative to the side stand so that the side stand and the rung is fixed at a specific position through the coupling fixing portion, It has the effect of increasing the assembly convenience of the cable tray.

Description

Cable tray {cabletray}

The present invention relates to a prefabricated cable tray.

In buildings where piping equipment such as pipes and electrical distribution equipment such as electric wires are installed, cable trays are used to stably install the cables forming the piping equipment or power distribution equipment.

In general, the cable tray is manufactured in a substantially ladder shape by fixing a pair of opposing side posts and a plurality of rungs connecting both side posts. The cable is placed inside the concave inside of the cable tray, and in most buildings, the cable tray is suspended from the ceiling.

The cable tray is provided as a pre-assembled in a predetermined unit length, or used to be assembled to the required length in the field, conventionally, welding is mainly used in the manufacture of the cable tray, in recent years, the length adjustment of the cable tray in the construction site is The assembly method using the screw is widely used.

The conventional rung and side stand prefabricated coupling method forms a plurality of through holes at regular intervals on the side stand, and forms a through hole at both ends of the rung, and after the operator matches the through hole of the rung with the side hole, This is how you fix it. At this time, since the worker must engage the screw in the state of holding the assembly position of the rung to match the through hole of the rung and the side of the side of the rung each time, the assembly work is very cumbersome, the assembly of the rung has a disadvantage that can not be made quickly.

In order to overcome these disadvantages, the invention has been proposed to insert a structure to ensure the ease of coupling between the rung and the side stand, or to remove only the screw and only the assembly, but they are complex structures or require new components Because of this, there is a dismissal leading to an increase in manufacturing costs.

Embodiment of the present invention has an object to improve the assembly performance of the cable tray.

Specifically, the object of the present invention is to enable the operator to easily hold the fixed position of the rung relative to the side bar without any extra effort.

It also has the purpose of increasing the engagement force between the rung and the side bands.

It is also an object to ensure that the rung is stably positioned in place for fastening the rung and the side stand.

In addition, it has the purpose to facilitate the handling of the rung, and to prevent safety accidents.

One embodiment of the present invention, a plurality of side stand spaced side by side, a plurality of rungs lying between the adjacent side stand, coupling fixing portion for fixing the side stand and the rung and the end and the side of the rung On the side facing the stand, it is to include a position specific portion for determining the position of the rung relative to the side stand so that the side stand and the rung is fixed at a specific position through the coupling fixing portion.

In addition, the position specific portion may include a seating groove formed in the side stand, and a protrusion provided at the end of the rung and placed in the seating groove.

In addition, the coupling fixing portion may include a screw hole formed at the end of the rung, a through hole formed in the side stand to match the center of the screw hole, and a screw coupled to the through hole and the screw hole.

In addition, the screw hole is formed in the first bent portion that is bent inwardly after one surface of the rung is cut, the protrusion end of the second bent portion bent toward the end of the rung at the end of the first bent portion Can be formed on.

Further, the lower surface of the side surface is horizontally bent to form a gentle curved surface facing each other, the seating groove is formed on the gentle curved surface, the end of the projection is to be located inside the end of the rung Can be.

In addition, the rung is made of a polygonal steel, the lower surface of the rung can be placed on the lower surface of the horizontal side.

According to the present invention, the assembling operator of the cable tray can easily hold the position where the rung and the side stand are coupled, so that the assembly of the cable tray can be easily performed quickly.

In addition, since the screw hole is formed in the first bent portion such as the cantilever beam, the elastic deformation of the first bent portion is possible when the screw is tightened, so that the assembled cable tray can be strongly resistant to vibration and torsion.

In addition, since the rung is made of a polygonal shape steel, the rung can be placed more stably on the side table.

Furthermore, by forming a seating groove in the curved surface section of the lower side of the side table, it is not necessary to protrude the rung from the end of the rung to the outside, and thus damage to the protrusion or other work safety that may occur when handling the rung. It also has the effect of preventing accidents.

1 is a perspective view schematically showing an embodiment of the present invention.
Figure 2 is an exploded perspective view showing the main part of the present invention.
Figure 3 is a cross-sectional view of the present invention shown in FIG.
Figure 4 is a cross-sectional view of the present invention shown in FIG.

Hereinafter, with reference to the drawings will be described the configuration, function and operation of the cable tray according to an embodiment of the present invention.

As shown in FIG. 1, the cable tray 1 according to the embodiment of the present invention includes a side stand 10 and a rung 20. At this time, the side stand 10 is arranged side by side spaced apart, parallel to each other. As shown in the figure, the side bands may consist of a pair or a plurality of three or more. In addition, the rung 20 is a plurality of spaced apart on the side table 10 facing both ends thereof is fixed through the coupling fixing portion (30).

At this time, the coupling fixing portion 30 may be made of a screw coupling method as described below, in addition to the variously known rung and side stand fixing such as riveting, welding, bonding or fitting using an auxiliary structure It may be done in a manner.

The specific position of the rung fixed through the coupling fixing unit may be variable according to a user's selection. For example, the spacing of the rungs may be set to be wider or narrower according to the user's selection, and the distance from the neighboring rungs may also vary according to the user's selection. Also, as shown, the rung is generally fixed at the bottom of the side stand, but may be fixed higher and fixed at the center height of the side stand.

In the present invention, so that the assembly operator can easily grasp the specific position where the rung 20 is fixed, the rung 20 is placed in a fixed position of the side stand 10, the rung 20 is a rung 20 And it is characterized in that provided on the side stand (10).

Specifically, the position specific government allows the worker who assembles the side posts and the rung to be easily placed in the position (specific position) where the rung is to be fixed. This eliminates the hassle of choosing a location. This position specification may be made of a specific shape structure formed at the end of the rung, and a corresponding structure coupled with the structure of the rung end formed at the fixed position of the side stand. The specific shape of the rung and the corresponding structure of the side surface corresponding thereto may be a structure of a protrusion and a groove as described below, and may have various shapes such as a recessed shape of the side surface in which the end of the rung is accommodated.

Referring to Figures 2 to 4, in a specific embodiment, the position specific portion 40 is provided with a seating groove 41 formed in the side stand 10, the end of the rung 20 is provided with the seating groove ( 41 may be included projections (42). At this time, the seating groove 41 is formed in the side table 10 so that the projections 42 of the rung 20 are inserted or at least spanned.

In this case, since the seating groove 41 is formed in the side stand 10 in consideration of the fixing position of the rung 20 in advance, the worker is seated in the protrusion 42 provided at the end of the rung 20 ( 41) it is possible to place the rung 20 in a specific position where the rung 20 is to be fixed simply by placing it in place.

On the other hand, in a specific embodiment of the coupling fixing portion, the coupling fixing portion 30, the screw hole 31 formed at the end of the rung 20, and the center of the screw hole 31 and the side stand ( 10 may include a through hole 32 formed in the through hole 32 and a screw 33 coupled to the through hole 32 and the screw hole 31.

At this time, the screw hole 31 of the rung 20 is formed to be substantially vertical at the end of the rung 20 to be interviewed with the side stand 10, as shown is one side of the rung 20 is cut inside The first bent portion 21 bent to form a hole may be formed. Or it may be made by forming a hollow corresponding to the screw hole inside the rung to be extruded.

In an embodiment of the present invention, one side is cut in a substantially 'c' shape at the end of the rung 20 made of C-shaped steel and then screwed into the first bent portion 21 bent inwardly 31 ), And the protrusion 42 is provided at the end of the second bent portion 22 which is bent again from the lower end of the first bent portion 21 toward the end of the rung.

In this case, since the rung having screw holes and protrusions can be manufactured through pressing, manufacturing is relatively simpler than other conventional technologies using a separate connector member at the end of the rung, and the manufacturing cost is reduced. Has

In addition, the screw hole 31 formed in the first bent portion 21, since the first bent portion 21 is a cantilever, even if the operator tightens the screw with a rather excessive force, the first bent portion is elastically deformed and not easily broken. Will be done. In this way, the first cable is elastically deformed so as to be close to the side stand, and the assembled cable tray is tightened with screws even when the vibration or torsion is transmitted to the cable tray by the vibration of the cable during or after the installation of the assembled cable tray. This is not easy to loosen to increase the assembly strength of the cable tray.

In addition, the rung is coupled to the two sides of the side stand and the top and bottom by the mounting groove and the projection together with the screw, it also has the effect of increasing the fixed strength.

On the other hand, as shown in Figures 1 to 3, the lower surface 13 of the side table 10 can be bent horizontally to form a smooth curved surface in a direction facing each other. Of course, as shown, the upper portion 11 of the side stand 10 may also be horizontally bent like the lower surface to increase the structural strength of the side stand 10. In this case, the seating groove 41 may be formed on the smooth curved surface 14 of the vertical surface 12 and the horizontal lower surface 13.

In this case, as shown in Figure 3, the seating groove 41 is provided in the rung 20, as it moves closer to the end of the rung 20 than the through hole 32 of the side table 10 The protrusion 42 may be located inside the end of the rung or at the same position as the end.

That is, when the end of the rung 20 is in contact with the inner side of the side stand 10, the projection located inside the end of the rung in the seating groove 41 located closer to the rung 20 than the inner side of the side stand 10 ( 42) can be spread over. As a result, the projections do not protrude to the outside at the end of the rung, thus preventing the breakage of the projections when storing or carrying a plurality of rungs at the work site, and the operator does not protrude from the end of the rung. It is possible to prevent the risk of injury from projections.

Furthermore, the rung 20 is made of a polygonal steel, and the bottom surface 23 of the rung may be placed on the lower surface 13 of the horizontal side stand 10. The rungs may be semi-circular, triangular, etc. polygonal steel having a plane to be placed on the lower surface 13, and may be made of C-shaped steel as shown for ease of manufacture.

In this case, the lower surface 23 forming the plane under the rung 20 may be supported more stably while being applied to the lower surface 13 of the side table 10 that is horizontally bent.

Hereinafter will be described the action of the cable tray according to an embodiment of the present invention.

In a state in which both sides of the side stand 10 is horizontally faced by the operator, the rung 20 is both ends on the horizontal lower surface (13). The worker places the projection 42 of the rung 20 in the seating groove 41. As a result, the center of the screw hole 31 of the rung 20 and the through hole 32 of the side stand 10 coincide with each other, so that the rung is naturally set in a position to be fixed. Afterwards, the operator can firmly fix the rung to the side stand by tightening the screw 33 coupled to the through hole 32 and the screw hole 31.

1: cable tray
10: side stand
11: upper surface 12: vertical surface 13: lower surface 14: curved surface
20: rung
21: first bend 22: second bend 23: the lower surface
30: consolidation
31: screw hole 32: through hole 33: screw
40: location specific government
41: seating groove 42: projection

Claims

A plurality of side stand spaced side by side,
A plurality of rungs lying between the neighboring side bars,
Coupling fixing part for fixing the side stand and the rung and
On the surface facing the end of the rung and the side stand, and includes a position specific position for determining the position of the rung relative to the side stand so that the side stand and the rung is fixed at a specific position through the coupling fixing portion,
Above location specific government
A seating groove formed in the side stand;
It is provided at the end of the rung includes a projection which is placed in the seating groove,
The lower surface of the side table is horizontally bent to form a smooth curved surface facing each other, the seating groove is formed on the smooth curved surface, the end of the protrusion is located in the cable tray located inside the end of the rung .

delete

In claim 1,
The combination fixing part
The cable tray includes a screw hole formed at the end of the rung, a through hole formed in the side stand to be centered with the screw hole, and a screw coupled to the through hole and the screw hole.

4. The method of claim 3,
The screw hole is formed in the first bent portion that is bent inwardly after one side of the rung is cut,
The protrusion is formed at the end of the second bent portion bent toward the end of the rung from the end of the first bent portion.

delete

In claim 1,
The rung is made of a polygonal steel, the lower surface of the rung is laid on the lower surface of the horizontal side of the cable tray.