KR101436333B1 - Earthquake Resistant Type Cable Tray System - Google Patents

Abstract

The present invention relates to an earthquake resistant cable tray system. The earthquake resistant cable tray system includes a cable tray; a cable tray support member having a pair of vertical members fixed at a roof of a building to be vertically disposed, and a horizontal member to support the cable tray while being coupled with the pair of vertical members; an earthquake resistant device including a first hinge part rotatably coupled with the horizontal member, a connector inclined to the vertical member at a predetermined angle and rotatably coupled with the horizontal member through the first hinge part, and a second hinge part including a side rotatably coupled with the connector and an opposite side fixed to the roof. The cable tray includes a body having a bottom surface and a lateral side made of a nonflammable material on which the cable is positioned and a section having a 90 degrees-rotated ′��prime; shape; and a bottom connection bar to connect the bodies to each other in a longitudinal direction and having a section of a 90 degrees-rotated ′��prime; shape and formed therein with horizontal direction grooves facing each other. Bottom surfaces of the connected bodies are inserted into the grooves of the bottom connection bar, respectively.

Description

Earthquake Resistant Type Cable Tray System

The present invention relates to a seismic cable tray system.

Generally, in tunnels, factories, and offshore structures, large and small diameter cables are arranged along the ceiling, floor, and wall to supply power or fluid. The cables thus placed should not be aesthetically pleasing to the passengers. Therefore, a cable tray is used to support and fix the cable in an organized state.

The cable tray is a support made of a non-combustible or metallic material for supporting the cable. The cable tray is composed of a pair of side rails having a predetermined length and constituting left and right side surfaces, and a transverse connecting member connecting the side rails in the transverse direction.

Here, when the side rails and the ends of the transverse connecting members are connected to each other, they are directly fixed by welding or the like, and joining structures are used for convenience of assembly and disassembly.

When an earthquake or an impact occurs at a place where the cable tray is installed, the cable tray may be severed from the ceiling (RF), and the cable tray may be detached or damaged from the lateral member.

If the cable tray is not firmly fixed to the cable tray support member by the vibration, the cable may be cut or damaged, and electrical damage may occur.

Korea Patent No. 10-0689873 (public announcement date: March 12, 2007) Korean Registered Utility Model No. 20-0456881 (Notice: November 24, 2011) Korean Public Patent No. 2012-0030224 (Published on March 28, 2012) Korean Registered Patent No. 10-1326806 (Notification date: Nov. 20, 2013)

The present invention relates to an anti-seize cable tray system capable of protecting a cable tray from earthquake or strong impact so as to solve problems as in the prior art, and also to protect a cable tray from a secondary danger due to breakage of a cable tray support member The purpose is to provide.

According to an embodiment of the present invention, a cable tray; A cable tray supporting member including a pair of vertical members fixed in a ceiling of the building and arranged in a vertical direction and a horizontal member horizontally coupled to the pair of vertical members to support the cable tray; A first hinge portion rotatably coupled to the transverse member, a connecting portion that is inclined at a predetermined angle with the vertical member and is rotatably coupled to the transverse member through the first hinge portion, And a second hinge portion to which the other end of the cable tray is coupled and the other end of which is fixed to the ceiling, wherein the bottom surface and side surface of the cable tray are formed of a piece of non- And a bottom connection bar having a transverse groove formed in a 'ㅐ' shape in which the body and the body are connected to each other in the longitudinal direction and are rotated by 90 ° in a cross direction, And the bottom surface is fitted into the groove of the bottom connecting bar, respectively.

The bottom connecting bar may be formed by pressing a piece of the incombustible material sheet so as to have a cross-section of?

And a tubular rung disposed across the bottom surface of the body and having both ends coupled to the sides of the body.

The cross section of one side of the rung may have a 'C' shape.

The body or the bottom connecting bar may be made of a metal plate.

According to another embodiment of the present invention, there is provided a cable tray comprising: a cable tray; a pair of vertical members fixed to the ceiling of the building and disposed in a vertical direction; a horizontal member coupled to the pair of vertical members in a horizontal direction, A first hinge portion rotatably coupled to the transverse member, a connecting portion that is inclined at a predetermined angle with the vertical member and is rotatably coupled to the transverse member through the first hinge portion, And a second hinge portion having one side rotatably coupled to the connection portion and the other side fixed to the ceiling, wherein the cable tray includes a side rail having a pair of side rails, Like horizontal connecting members arranged at predetermined intervals between the side rails of the side rails, Wherein the elastic member includes a connecting portion for connecting the inner side surface of the side rail and a connecting portion for connecting the connecting portion and the connecting portion in a folding manner, Provides a linear cable tray system.

The connecting portion may be configured to be folded inward or outward with a double hinge structure.

Wherein the side rails are each formed with a through hole at a predetermined diameter, the horizontal connecting members are connected to both ends of the rung, and each of the side rails is connected to both ends thereof and has a corrugated end portion in which the longitudinal wave is repeatedly formed in the pipe shape, A through hole having a shape corresponding to the outer shape of the corrugated end portion is formed, one side of which has a waveguide end portion inserted therein and the other side of which is in contact with the side rail, and a through hole in the side rail, And a coupling hole into which the coupling member is coupled may be formed at the corrugated end of the rung.

According to the vibration-proof cable tray system according to the embodiment of the present invention, since the cable tray support member can be elastically supported to absorb vibrations in various directions, the cable tray can be perfectly protected from earthquake or strong impact.

In addition, since the cable tray is supported while reinforcing the cable tray support member, it is possible to protect the cable tray from secondary danger due to breakage of the cable tray support member.

In addition, according to an embodiment of the present invention, there is an effect that the installed cable tray is not loosened due to external vibration including an earthquake, thereby enhancing safety.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a state in which a dustproof cable tray system according to an embodiment of the present invention is installed;
2 is a perspective view of a seismic resistant cable tray system according to an embodiment of the present invention,
Figure 3 is a front view of the seismic cable tray system of Figure 2;
FIG. 4 is a perspective view showing a cable tray support member having the earthquake-proof apparatus of FIG. 2,
5 is a perspective view of a punched cable tray according to another embodiment of the present invention,
FIG. 6 is an exploded perspective view of the punched cable tray shown in FIG. 5,
FIG. 7 is a perspective view from the inside after cutting the punched cable tray shown in FIG. 5,
FIG. 8 is a perspective view showing another embodiment of the connection portion of the punched cable tray shown in FIG. 5;
FIG. 9 is a perspective view showing a rung applied to a punching cable tray according to another embodiment of the present invention, FIG.
FIG. 10 is a partially exploded perspective view showing the punching cable tray of FIG. 5 and the rung of FIG. 9,
11 is an exploded perspective view showing a ladder type cable tray according to another embodiment of the present invention,
FIG. 12 is a perspective view showing a transverse connecting member of the cable tray of FIG. 11;
Fig. 13 is a perspective view showing a connecting hole for coupling the side rail and the transverse connecting member of Fig. 11,
14 is an exploded perspective view showing a ladder-type cable tray according to another embodiment of the present invention, and Fig.
15 is a perspective view showing a telescopic connection part applied to the ladder type cable tray of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In the description of the present embodiment, the cable tray may mean a structure used to support and protect cables when wiring cable power, control, communication, and instrumentation cables used in connection with wiring such as a power line. For example, the cable tray may be a rigid structure consisting of a unit or unit of units made of metal or a non-combustible material and associated accessories such as ladders, punching, ventilation channel, bottom sealing or the like As shown in FIG.

A seismic cable tray system according to an embodiment of the present invention may be provided with a seismic device on a cable tray support member or may form one set with a support member.

1 is a use state diagram of a seismic cable tray system of the present invention. As shown, the seismic cable tray system includes a cable tray CT, support members a and b, and an earthquake-proof device c. The earthquake-proof device (c) can be used by being mounted on the cable tray support members (a, b). The cable tray support members a and b have a transverse member a to which the cable tray CT is fixed and a pair of vertical members b capable of hanging the transverse member a to the ceiling.

At least one of the seismic resistance devices c may be provided on at least one side edge of the transverse member a. In this embodiment, a pair of seismic resistant devices c are provided at both side edges of the transverse member a. At this time, the earthquake-proof apparatus (c) is installed so as to connect the horizontal member (a) and the ceiling at a predetermined angle (?) With the vertical member (b). Since the vibration isolation device c of this embodiment having such a structure can support the cable tray support members a and b to absorb vibrations in various directions, the cable tray CT can maintain the installed height h Can be fully protected from earthquakes and strong impacts. In addition, since the seismic resistance device c supports the cable tray CT while reinforcing the cable tray support member b, the cable tray CT is prevented from a secondary danger due to the breakage of the cable tray support members a and b Can be protected.

In the embodiment of the present invention, a ladder type cable tray composed of a side rail and a plurality of transverse connecting members may be used as a cable tray CT, or a punched cable tray in which a side surface and a bottom surface are made of one piece of non- .

FIG. 2 is a perspective view of a cable tray system equipped with an earthquake-proof apparatus according to a first embodiment of the present invention, FIG. 3 is a cross-sectional view of the cable tray system of FIG. 2, It is the straining of the supporting member. The seismic cable tray system of the illustrated embodiment includes a cable tray seismic device (not shown) that is additionally installed in the cable tray 300 and the cable tray support member 100 and the cable tray support member, or in one set with the cable tray support member 200). The earthquake-proof apparatus 200 can be used by being mounted on the cable tray support member 100. [ The cable tray supporting member 100 includes a transverse member 110 to which the cable tray 300 is fixed and a pair of vertical members 120 to which the transverse member can be suspended from the ceiling. Although the ladder-type cable tray 300 is shown in Figs. 2 and 3, this is for convenience of explanation, and a punched cable tray to be described later can also be applied.

2 and 3 show the seismic isolation device 200 connected to the left end of the transverse member 110, the seismic isolation device 200 may be disposed on one side or both sides of the opposite ends as shown . The first and second hinge parts 230 and 230 may be disposed on the left and right sides of the transverse member 110. The support member 100 may include a first hinge part 210, ) And the ceiling. The first hinge unit 210 includes a pair of hinge members 211 rotatably coupled to each other by a hinge shaft 212 and is rotatably coupled to the horizontal member 110. The first hinge part 210 may be mounted to protrude from upper surfaces of both side edges of the cross member 110. The hinge member 211 located at one side of the first hinge unit 210 is fixed to the transverse member 110 by the fixing members 222 and 223 and the hinge member 211 located at the other side is fixed to the fastening member 221 The connection part 220 can be coupled to the connecting part 220. The first hinge unit 210 can elastically support the transverse member 110 and the connection unit 220 so that the connection unit 220 can rotate with respect to the transverse member 110 when vibration occurs. The connection unit 220 is rotatably coupled to the transverse member 110 so as to be inclined at a predetermined angle with the vertical member 120 through the first hinge unit 210. The connection unit 220 has a predetermined length to connect the first hinge unit 210 and the second hinge unit 230, which are spaced apart from each other. One side of the second hinge part 230 is rotatably coupled to the connection part 220, and the other side is fixed to the ceiling. The second hinge portion 230 may be installed on the ceiling at a position spaced apart from the outside of the vertical member. One side of the second hinge part 230 is rotatably coupled to the connection part 220, and the other side is fixed to the ceiling. The second hinge portion 230 may be installed on the ceiling at a position spaced apart from the outside of the vertical member.

The earthquake-proof apparatus 200 may be mounted on at least one edge of the lateral member 110a. Figures 2 and 3 illustrate an embodiment in which three are mounted. For example, a plurality of the seismic equipments 200 may be arranged in a pair in which the hinge axis is arranged in a direction parallel to the transverse member and in a direction in which the hinge axis intersects the transverse member. When a plurality of earthquake-proof devices 200 are installed on one side of the transverse member 110a such that the hinge axes are different from each other, the cable tray supporting member 100 is more stably supported . At this time, the plurality of the seismic equipments 200 may be mounted on the other side of the transverse member 110a.

The shape of the horizontal member 110a, the vertical members 120a and 120b and the connecting portion 220 of the cable tray supporting member 100 may be modified to have a shape different from that of the above embodiment .

As described above, according to the seismic apparatus of the cable tray support member according to the embodiment of the present invention, since the cable tray support member is elastically supported to absorb vibrations in various directions, the cable tray can be perfectly protected from earthquake or strong impact. In addition, since the cable tray is supported while reinforcing the cable tray support member, it is possible to protect the cable tray from secondary danger due to breakage of the cable tray support member.

5 to 8 are perspective views showing punching cable trays among cable trays provided in the dustproof cable tray system of FIG. FIG. 5 is a perspective view of a punching cable tray, FIG. 6 is an exploded perspective view of FIG. 5, and FIG. 7 is a perspective view of a punching cable tray 400 cut in a longitudinal direction.

As shown, the punched cable tray 400 is formed from a piece of non-ferrous material on the bottom and side where the cable is placed. The punched cable tray 400 includes a body 410, a bottom connecting bar 420 and a side connecting portion 430 for connecting the body 410 in the longitudinal direction. The body 410 is formed in a 'C' shape having a 90 ° section rotated by forming and punching a non-flammable steel sheet or a coated steel sheet. The bottom connection bar 420 is coupled to the bottom portion 411 of the body 410 to longitudinally connect the body 410 and the body 410. The bottom connecting bar 420 is formed in a shape of 'ㅐ' having a cross section rotated by 90 °, and the lateral grooves 421 are formed facing each other. The bottom connection bar 420 is formed of a non-combustible material and the bottom surface 411 of the connecting bodies 410 is fitted into the groove portion 421 of the bottom connection bar 420, respectively. The side connection portion 430 has a corresponding size and shape so as to surround and engage the side surface 412 of the body 410. The side connection portion 430 is disposed between the outer end portion and the end portion of the side surface 412 of the body 410. Inside the side surface 412, a support member 440, which supports the lateral and longitudinal sides of the side surface in the form of a knot, is joined by a fastening member such as a bolt and a nut.

When the body 410 is formed of a metal plate, the cross section of the body 410 may be formed to be sharp. If it does not contain separate protective measures, the cross section of the body may damage the cable or interfere with the pulling of the cable. The bottom connecting bar 420 configured as described above can protect the cable from the sharp end because the end surface of the bottom surface 411 of the body 410 is inserted into the groove portion 421 of the connecting bar 420.

8 is a perspective view illustrating a bottom connecting bar 410 according to another embodiment. As shown in FIG. 8, the bottom connecting bar 410 of the cable tray is formed so that a single incombustible sheet is' And may be formed by pressing it from the top so as to have a shape of "ㅐ" rotated by 90 ° in cross section. When the bottom connecting bar 410 is used as in the embodiment of FIG. 8, the end of the groove portion 421 located on the bottom surface 411 is also formed as a curved line, not a cross section of a metal or the like, . 8, it is possible to absorb shocks due to vibrations because the left and right sides can be freely moved upward and downward, respectively. It is also easier and easier to assemble and the top surface of the cable makes cable installation more convenient.

9 and 10 are perspective views illustrating a cable tray according to a third embodiment of the present invention in which a rung 500 is added across the bottom surface 411 between opposing sides 412 of a punched cable tray Respectively. The rungs 500 are formed at the ends thereof with fastening portions 510 formed with fastening holes 511 for engagement with the side surfaces 412 of the body 410, respectively. The rung 500 is included on the cable tray 400 to function to bind the cables. The rung 500 is disposed across the bottom surface 411 of the cable tray 400 and is shaped like a pipe with both ends coupled to the side surfaces 412 of the cable tray 400 respectively.

It is preferable that the rung 500 is formed in a pipe shape having a length corresponding to the distance between the facing side surfaces and being cut in the longitudinal direction with a 'C' shape. Like fastening portions 510 capable of coming into contact with the side surfaces 412 in the direction opposite to the incision are respectively formed at upper and lower ends of the rung 500. A fastening hole 511 is formed in the fastening part 510. A bolt, a flat head screw, a round head screw, or the like may be used to penetrate the fastening hole 511 and may include a washer or the like.

FIGS. 11 to 13 illustrate a cable tray according to a fourth embodiment of the present invention, which is applied to a stepped cable tray 300. FIG. Fig. 11 is an exploded perspective view of a cable tray including a transverse connecting member having a corrugated end according to the present invention, Fig. 12 is a perspective view showing a transverse connecting member having corrugated ends, and Fig. Fig.

As shown in the figure, the cable tray 300 includes a pair of side rails 310, a pair of side rails 310, and a transverse connecting member 320 having a corrugated end, And a coupling 330 for coupling to the corrugation end. The transverse connecting member 320 includes a pipe-shaped body 324 and a corrugated end portion 321 connected to both ends of the body 324 and having a pipe shape in which a longitudinal wave is repeatedly formed. The connecting hole 330 is formed with a through hole 334 having a shape corresponding to the outer shape of the corrugated end 321 of the transverse connecting member 320 and one side of the corrugated end of the transverse connecting member 320 321 are inserted and engaged with each other and the other side is in contact with the side rail 310. The fastening member 340 passes through the through hole 311 of the side rail 310 and is fastened to the transverse connecting member 320. A coupling hole 323 through which the coupling member 340 is coupled is formed at the corrugated end portion 321 of the transverse coupling member 320. Reference numeral 321-1 denotes a convex portion of the corrugated end portion, and 321-2 denotes a concave portion.

The corrugated end portion 321 is formed to be smaller in diameter than the body 324 of the transverse connecting member 320 and the body 324 and the corrugated end portion 321 of the transverse connecting member 320 are connected to each other 322, respectively. The connection hole 330 is formed in the same shape as the circumference of the body 324 and the surface of the connection member 330 coupled to the transverse connection member 320 is formed in a shape corresponding to the connection portion 322, . The fastening hole 323 is formed by gathering the wave of the wave-like end portion 321. The fastening member 340 is formed of a bolt, and the fastening hole 323 is formed with a thread corresponding to the bolt. The transverse connecting member 320 may be formed of a metal material, and the transverse connecting member may be press-formed.

The surface 334 of the connection part 330 where both ends of the coupling hole 354 are formed is coupled to the connection part 322 of the transverse connection member 320 as shown in FIG. It is preferable that the side 351 is formed in a corresponding shape and the side 353 on which the side rail 310 contacts is vertically formed like the side rail 310 as shown in FIG. The fastening member 340 passes through the through hole 311 of the side rail 310 and is fastened to the fastening hole 325 formed at the corrugated end portion 321 of the transverse connecting member 320. When the fastening member 340 is formed of a bolt, a thread corresponding to the bolt is formed in the fastening hole 325.

An assembling structure of the cable tray according to the present invention will be described with reference to FIGS. 9 to 11. FIG. First, the connecting member 350 is coupled to both the corrugated end portions 210 of the transverse connecting member 320. The corrugated end portion 321 of the transverse connecting member 320 is inserted into the engaging hole 354 toward the transverse connecting member contact surface 353 while the surface of the connecting member 350 is well divided. The horizontal connecting member 320 is connected to both ends of the connecting member 350 at a position where the through hole 311 of the side rail 310 is formed and the connecting member 340 is inserted into the through hole 311 And is engaged with the fastening hole 325 of the transverse connecting member 320. [ So that the horizontal connecting member 320 can be coupled to the side rail 310 through the fastening. Since the wave shapes are brought into contact with each other through the connecting member 300 made of elastic material, they easily absorb the vibration, so that it is possible to prevent the disassembly of the cable tray due to the vibration by absorbing the earthquake or sea vibration.

14 and 15 show a cable tray according to a fifth embodiment of the present invention. That is, the illustrated embodiment is a cable tray system in which a ladder-type cable tray is extended in the longitudinal direction using a telescopic link. FIG. 14 is a perspective view showing a telescopic connecting part 600 used for extending the length of a cable tray, and FIG. 15 is a perspective view showing a telescopic connecting part 600 connecting the side rails 310 of the cable tray in the longitudinal direction Fig.

As shown in the drawing, the telescopic connecting part 600 includes a coupling part 610 coupled to the side rail 310, and a coupling part 620 coupling the coupling part 610 and the coupling part 610 in a foldable manner. The engaging portion 610 is formed on the inner side or the outer side of the end portion of the side rail 310 to have a shape and size corresponding to the portion to be engaged. The connecting portion 620 may be configured to be folded inward or outward in a double hinge structure so that the angle of the hinge can be adjusted by changing the distance between the side rails 310 when the distance between the side rails 310 is reduced or decreased. Therefore, even if the length of the side rail 310 is changed due to vibration, temperature change, or the like, the cable tray itself can be adapted to the change of the angle of the connecting portion without being broken or damaged. That is, when the cable tray 300 is connected to the cable tray 300 in the longitudinal direction, the telescopic connecting part 600 is capable of responding to the expansion and contraction according to changes in the external temperature.

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 falling within the scope of the same shall be construed as falling within the scope of the present invention.

Claims (8)

cable tray;
A cable tray supporting member including a pair of vertical members fixed in a ceiling of the building and arranged in a vertical direction and a horizontal member horizontally coupled to the pair of vertical members to support the cable tray;
A first hinge portion rotatably coupled to the transverse member, a connecting portion that is inclined at a predetermined angle with the vertical member and is rotatably coupled to the transverse member through the first hinge portion, And a second hinge portion coupled to the first hinge portion and the other end fixed to the ceiling,
The cable tray includes:
Two or more bodies having a bottom surface and a side on which the cable is placed and formed of a piece of non-combustible material and having a "
And a bottom connection bar connecting the two or more bodies to each other in the longitudinal direction, the bottom connection bars being coupled to the longitudinal ends of the body and having transverse grooves facing each other in a '
The bottom surfaces of the two or more bodies connected to each other are respectively fitted into the groove portions of the bottom connecting bars,
Wherein the bottom connecting bar is formed by pressing a piece of incombustible material sheet so as to have a cross-section of '?' And having a top shape rotated 90 ° in cross section. delete The method according to claim 1,
Further comprising a tubular rung disposed across the bottom surface of the body and having opposite ends coupled to the sides of the body, respectively. The method of claim 3,
Wherein the rung has a C-shaped cross-section at one side. The method according to claim 1,
Wherein the body or the bottom connection bar is made of a metal plate. cable tray;
A cable tray supporting member including a pair of vertical members fixed in a ceiling of the building and arranged in a vertical direction and a horizontal member horizontally coupled to the pair of vertical members to support the cable tray;
A first hinge portion rotatably coupled to the transverse member, a connecting portion that is inclined at a predetermined angle with the vertical member and is rotatably coupled to the transverse member through the first hinge portion, And a second hinge portion coupled to the first hinge portion and the other end fixed to the ceiling,
The cable tray includes:
A pair of side rails, a pipe-shaped transverse connecting member disposed at a predetermined interval between the pair of side rails, and a stretchable connecting portion extending the side rails in the longitudinal direction between the side rails ,
Wherein the expandable connection portion includes a coupling portion coupled to the inner side surface of the side rail and a coupling portion connecting the coupling portion and the coupling portion in a foldable manner,
Wherein the connection portion is configured to be folded inward or outward with a double hinge structure. delete The method according to claim 6,
Each of the side rails is formed with a through hole at a predetermined diameter,
Wherein the horizontal connecting member is connected to both ends of the runner and connected to both ends of the runner, the runner including a corrugated end portion in which a longitudinal wave is repeatedly formed in the pipe shape, a through hole having a shape corresponding to an outer shape of the corrugated end portion of the rung And a fastening member that is fastened to the rung including the through hole of the side rail and the fastening member that is fastened to the rung, And a fastening hole to which the fastening member is coupled is formed at an end thereof.

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