KR100915369B1 - Expansible and contractible connecting structure of cable tray - Google Patents

Abstract

An expansible and contractible connecting structure of a cable tray is provided to facilitate an assembly process by exposing a coupling part of a tray and a movable connection member through a penetration hole. A transfer guide member is arranged in a connection base(100) in the longitudinal direction. A cover(109) is arranged in an upper part of the connection base for preventing the inflow of foreign materials. A pair of movable connection members(130) are arranged to face both sides of the connection base. The pair of movable connection members are movably connected to the transfer guide member. A tray(160) is combined in each movable connection member. The tray includes a plurality of frames and a plurality of hangers. Each hanger is connected between frames in a longitudinal direction. The connection base and the tray are electrically connected through a ground jumper(108).

Description

Cable tray telescopic structure {EXPANSIBLE AND CONTRACTIBLE CONNECTING STRUCTURE OF CABLE TRAY}

The present invention relates to a connection structure of a cable tray, and more particularly, the coupling position of the tray is changed according to the load generated or applied to the wired cable to damage the cable due to expansion and contraction of the cable due to temperature changes, earthquake occurrence, etc. It relates to a flexible connection structure of the cable tray that can prevent.

Generally, large and small diameter cables are arranged along ceilings, floors, or walls for power supply or fluid supply in various building facilities such as factories, ships, and offshore structures. Cable trays are installed and piped for prevention.

1 is a perspective view showing a conventional cable tray.

As shown in the drawing, a conventional cable tray has a tray 1 in which a plurality of hangers 1b are connected between a pair of side frames 1a spaced apart from left and right by a predetermined distance, and a connection connecting the tray 1 in the longitudinal direction. It consists of the member 2.

As shown in the drawing, a plurality of trays 1 coupled by the connecting member 2 are fixedly installed on a ceiling, a floor, a wall, or the like, and a cable is wired inside the upper part of the tray 1 to hanger 1b with a cable tie. ), And the cable wiring work is performed.

By the way, the conventional cable tray is made of a fixed structure that couples the two trays 1 to each other by fastening the connecting members 2 with bolts or the like at the joints of the two trays 1, so that the temperature changes after the tray construction. Therefore, when the cable is stretched or contracted, a strong tensile load is applied to the cable due to binding to the fixed tray, thereby causing the cable to be broken or the tied cable tie to be broken, thereby causing a poor wiring state.

In addition, in order to prevent damage of structures due to earthquakes, the demand for seismic design is being strengthened in various buildings and facilities. The conventional cable tray structure has a fixed tray structure when an earthquake occurs and a tensile force is applied to the cable. There is a high possibility that the cable breaks or is damaged, so that the requirements for the seismic design cannot be met.

The present invention is to solve the problems as described above, it is possible to prevent the damage of the cable due to temperature changes, earthquake, etc. by changing the coupling position between the trays in accordance with the expansion and extension of the cable and the load applied from the outside. It is an object to provide a flexible connection structure of a cable tray.

The present invention for achieving the above object, the connection base provided with a transfer guide member along the longitudinal direction; A movable connection member disposed on both sides of the connection base so as to face each other and movably coupled to the transfer guide member; And a tray having a plurality of frames coupled to a longitudinally outwardly facing portion of the movable connecting member and a plurality of hangers for transversely connecting the frames to bind the cables. do.

In the tray connection structure of the present invention, the connection base is provided with sidewalls on both sides in the width direction of the bottom portion horizontally arranged so that the movable connection member is inserted into an inner space formed by the bottom portion and the sidewall portion, and the sidewall It may be made of a structure in which the transfer guide member is installed in the portion.

The transfer guide member may have a guide rail bent or curved so that an upper surface thereof is convex at an upper end thereof, and a rail coupling part may be provided on both sides of the movable connection member so as to be movable on an upper portion of the guide rail. .

In addition, the connection base is preferably provided with a connecting guide portion extending in the longitudinal direction at both ends of the side wall portion, the coupling portion of the movable connecting member and the tray is inserted into the connection guide portion to be movable.

In this case, the connection guide portion is more preferably formed with a through-hole so that the coupling portion of the movable connection member and the tray is exposed to the outside.

In addition, the coupling portion of the movable connecting member and the tray may be fastened by bolts and nuts, and the bolt or nut may be configured to protrude outward through the through hole to limit the moving range of the movable connecting member and the tray.

It is preferable that the support member supporting the bottom surface of the movable connection member to be movable along the longitudinal direction is provided on the bottom surface of the connection base.

The support member may be formed in the shape of a bar having a pointed upper wedge or inverted V-shaped cross section.

The connection base is preferably provided with a cable mounting bar that is connected between both side wall portions so as to be spaced apart from the bottom portion and removed after cable wiring.

And, it may be configured to further include a spacer disposed on the bottom of the connection base spaced apart the installation interval of the movable connection member on both sides and provided with a handle portion protruding upward to facilitate the removal after wiring.

According to the present invention as described above, by allowing each tray is coupled to the movable connection member so as to be movable in the longitudinal direction and the vertical direction, when the cable is stretched due to temperature changes, the cable is caused by an external force due to an earthquake or the like. In the case of being pulled or pushed, the tray is naturally moved according to the load generated or applied to the cable, thereby preventing damage and breakage of the cable.

In addition, by allowing the coupling portion of the movable connection member and the tray to be exposed to the outside through the through hole, it is possible to perform the assembly work more easily, and to allow the bolt or nut which is a fastening means of the coupling portion to protrude through the through hole, By limiting excessive movement of the movable connecting member and the tray there is an effect that can prevent the departure.

In addition, it is possible to easily adjust the installation interval of the movable connecting member on both sides through the use of spacers, and to allow the wires to be precisely laid using the cable retaining bar, to facilitate the wiring work and cable due to excessive margin There is an effect that can prevent the damage of the cable due to waste and insufficient margin.

1 is a perspective view showing a conventional cable tray.

Figure 2 is a perspective view showing an embodiment of the stretchable connection structure of the cable tray according to the present invention assembled.

FIG. 3 is a perspective view showing the stretchable connection structure of the cable tray of the present invention shown in FIG. 2 in a partially disassembled state.

4 is a cross-sectional view taken along the line AA ′ of FIG. 2.

<Description of the reference numerals for the main parts of the drawings>

10 cable 100 connection base

110: transfer guide member 111: guide rail

120: connection guide portion 121: through hole

130: movable connecting member 140: spacer

151: support member 152: cable support bar

154 bolt 160 tray

161: frame 163: hanger

The objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 and 3 are perspective views showing an embodiment of the stretchable connection structure of the cable tray according to the present invention in an assembled and disassembled state, respectively, and FIG. 4 is a cross-sectional view showing the connection structure of the cable tray.

As shown in the cable tray connection structure of the present invention, a pair of movable connecting members 130 in the longitudinal both sides of the connection base 100 is movably coupled in the longitudinal direction, each movable connecting member 130 The tray 160 is coupled to the structure. The upper portion of the connection base 100 is covered with a cover 109 for preventing the inflow of foreign substances such as dust, and the connection base 100 and the tray 160 are connected to each other through the ground jumper 108. .

The connection base 100, the movable connection member 130, and the tray 160 may be formed by processing materials of various materials such as synthetic resin or metal in various ways, but in the present embodiment, a predetermined thickness (about 1 to 2 mm) is used. The structure formed by bending the metal plate of) is illustrated.

The connection base 100 is movable to support the movable connecting member 130 connected to both sides, the side wall portion 102 is provided on both sides in the width direction of the bottom portion 101 arranged horizontally, each side wall portion Connection guide portions 120 are provided at both ends of the longitudinal direction of 102. The inner side surfaces of both side wall portions 102 of the connection base 100 which are opposed to each other are provided with a conveyance guide member 110 arranged in the longitudinal direction.

The bottom surface 101 of the connection base 100 supports the bottom surface of the movable connection member 130 to smoothly move the bottom portion 101 and the movable connection member 130 of the connection base 100. A plurality of support members 151 are installed in the longitudinal direction to prevent the bottom portion 131 from sagging downward. The support member 151 preferably has an area of the upper end contacted with the movable connection member 130 to be as small as possible so as to reduce frictional resistance when the movable connection member 130 is moved. An example of a bar shape having an inverted V-shaped cross-sectional shape sharply bent is illustrated.

The reinforcing bent part 103 is bent inwardly to increase the bending strength at the upper end of the side wall part 102 of the connection base 100, and is spaced apart from the bottom part 101 of the side wall part 102. A plurality of coupling holes 104 into which the cable placement bar 152 is inserted are formed at a portion of the height.

The cable support bar 152 is to give a flexible margin by bending the wiring path of the cable 10 during construction, the coupling hole formed so as to face each other on both side wall portion 102 when wiring the cable 10 And fixed by a nut or the like, and are removed after the wiring of the cable 10 is completed.

The transfer guide member 110 is provided with a guide rail 111 along the longitudinal direction at the upper end to support the movable connecting member 130 to be movable. As illustrated, in the case of a structure in which the metal plate is bent, the guide rail 111 is also formed by bending the upper end of the transfer guide member 110. The guide rail 111 preferably has a contact area with the movable connecting member 130 as small as possible in order to reduce frictional resistance when the movable connecting member 130 is moved. In the illustrated embodiment, the guide rail 111 has a convex curved top. It was illustrated that it was formed to be bent.

The lower end of the transfer guide member 110 is provided with a coupling support portion 112 bent outwardly along the longitudinal direction. The coupling support part 112 is welded to the bottom part 131 of the connection base 100 to provide a fixing force, and an outer end thereof protrudes outward from the guide rail 111 so that the guide rail 111 is connected. To be spaced apart from the side wall portion 102 of the base 100.

The connection guide portion 120 is formed to extend in the longitudinal direction from the side wall portion 102 of the connection base 100, the upper coupling guide portion 122 is bent inwardly in the form of a channel at the upper end, the lower end inward The bent lower coupling guide 123 is provided. In addition, the connection guide portion 120 is formed with a through-hole 121 facing the side so that the coupling portion of the movable connecting member 130 and the tray 160 is exposed to the outside.

The movable connection member 130 is movably coupled to the inside of the connection base 100 so that the positions of the two trays 160 coupled to each other can be changed, the horizontal portion of the bottom portion 131 Side walls 135 are provided on both sides, and longitudinal ends of the side walls 135 are provided with fastening portions 133 extending outwardly.

The upper sidewall portion 135 of the movable connection member 130 is provided with a rail coupling portion 132 that is bent outwardly in a channel form to be movable on the guide rail 111 of the transfer guide member 110. .

The fastening part 133 is coupled to the tray 160 in a state of being inserted into the connection guide part 120. In the illustrated embodiment, a plurality of bolt holes 134 are formed in the fastening part 133. As illustrated, the fastening part 133 and the tray 160 are coupled to each other by the bolt 153 and the nut 154. In this case, the fastening part 133 is installed to be exposed to the through hole 121 to facilitate the fastening operation of the bolt 153 and the nut 154, and the bolt 153 or nut 154 protruding outward. Is preferably caught in the through-hole 121, the movable connection member 130 and the tray 160 can be prevented from being separated from the connection base 100.

The tray 160 has a conventional structure in which a pair or more frames 161 are connected in parallel and connected by a plurality of lateral hangers 163, and the fastening is performed at a longitudinal end of the frame 161. A plurality of bolt holes 134 are formed at a position corresponding to the portion 133 and are fastened to the movable connection member 130 by the bolt 153 and the nut 154 as described above.

The cable tray connection structure of the present invention configured as described above is installed to face the pair of movable connection members 130 inside the connection base 100, and fasten the tray 160 to each movable connection member 130. When the assembly is completed, the cable 10 is wired inside the movable connection member 130 and the tray 160, and then the cable 10 is installed by binding to the hanger 163 of the tray 160. .

In this case, the spacer 140 may be positioned between the two movable connecting members 130 to secure a space that may move in the direction in which the both movable connecting members 130 are close to each other. After the wiring operation is completed, the spacer 140 is removed, and a handle portion 142 bent to protrude upward on both sides is provided, so that the spacer 140 may be easily removed. In addition, the central portion between the two handle portion 142 is formed so as to be spaced apart from the bottom portion 101 of the connection base 100 by a predetermined interval is configured so that the support member 151 can pass through the lower side.

When the assembly of the tray is completed as described above, when the cable 10 is stretched or contracted due to temperature change, when the cable 10 is pulled or pushed by an external force due to an earthquake or the like, each tray 160 is operated. Since it is made of a structure coupled to the longitudinal and vertical movement with the connecting member 130, the tray 160 is naturally moved in accordance with the load generated or applied to the cable 10 to damage the cable 10 and Breakage can be prevented.

In addition, since the coupling portion of the movable connection member 130 and the tray 160 is exposed to the outside through the through hole 121, the assembling operation can be performed more easily, and the bolt 153 or nut which is a fastening means of the coupling portion can be performed. 154 may protrude through the through hole 121 to limit the excessive movement of the movable connection member 130 and the tray 160 to prevent the departure.

In addition, through the use of the spacer 140 can be easily adjusted the installation interval of the movable connecting member 130 on both sides, by using the cable bracket bar 152 can accurately give a margin to the wiring of the cable (10). Thereby, it is possible to facilitate the wiring work and to prevent the damage of the cable 10 due to waste of the cable 10 due to excessive margin and the lack of margin.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

Claims (10)

A connection base provided with a transfer guide member along a longitudinal direction; A movable connection member disposed on both sides of the connection base so as to face each other and movably coupled to the transfer guide member; And And a tray having a plurality of frames coupled to the longitudinally outwardly facing portion of the movable connecting member and a plurality of trays transversely connected between the frames to bind the cables. The method of claim 1, The connection base may include sidewalls provided at both sides of the horizontal portion of the bottom portion horizontally disposed so that the movable connection member is inserted into an inner space formed by the bottom portion and the sidewall portion, and the transfer guide member is installed on the sidewall portion. Flexible connection structure of cable tray. The method of claim 2, The transfer guide member is provided with a guide rail bent or bent so that the upper surface is convex on the upper end, and the cable coupling, characterized in that the rail coupling portion is provided on the upper side of the guide rail to be movable in the width direction both sides of the movable connection member Flexible connection structure of the tray. The method of claim 1, The connecting base has a connecting guide portion extending in the longitudinal direction at both ends of the side wall portion, and the coupling portion of the movable connecting member and the tray is inserted into the connection guide portion movable stretchable connection structure of the cable tray, characterized in that . The method of claim 4, wherein The connection guide portion of the cable tray, characterized in that the through-hole is formed so that the coupling portion of the movable connection member and the tray exposed to the outside. The method of claim 5, The coupling part of the movable connecting member and the tray is fastened by a bolt and a nut, and the bolt or nut is projected outward through the through hole to limit the movement range of the movable connecting member and the tray Ceremony connection structure. The method according to any one of claims 1 to 6, And a support member supporting a bottom surface of the movable connecting member in a longitudinal direction on an upper surface of a bottom portion of the connection base. The method of claim 7, wherein The support member is a stretchable connecting structure of the cable tray, characterized in that the upper bar is made of a bar shape having a wedge-shaped or inverted V-shaped cross-sectional shape. The method according to any one of claims 1 to 6, The connection base is a flexible connection structure of the cable tray, characterized in that the cable installed bar is installed between the side wall portion and the side wall portion spaced apart from the predetermined interval and removed after the cable wiring. The method according to any one of claims 1 to 6, And a spacer disposed at the bottom of the connection base, the spacer having a handle portion protruding upward to space the installation intervals of both movable connection members and to be easily removed after the wiring operation.