Electric Cable Tray

Abstract

The present invention relates to an electrical cable tray for multi-unit housing that can improve the convenience of installation and maintenance by partitioning electrical cables by type and improve the assembly of trays connected in the longitudinal direction. The present invention relates to an electrical cable tray for multi-unit housing, which is fixed to a ceiling structure by stud bolts and comprises a base slat supporting electrical cable wiring and side slats vertically connected to both ends of the base slat. The invention comprises a plurality of coupling slots formed in a matrix arrangement on the base slat, a cable holder selectively hook-coupled to the plurality of coupling slots to partition electrical cables wired on the base slat while extending and retracting vertically, and a link frame connecting the trays connected to each other in the front and rear directions. The link frame comprises a horizontal support lath supporting the bottom surface of the base slats of the trays connected to each other, a vertical support lath vertically connected to both ends of the horizontal support lath to support the outer surface of the side slats on both sides, and a link lath horizontally connected to the top of the vertical support laths on both sides to connect the tops of the side slats.

Description

Technology Field

[0001] The present invention relates to an electric cable tray for multi-unit housing, and more specifically, to an electric cable tray for multi-unit housing that can improve the convenience of installation and maintenance by partitioning electric cables by type and improve the assembly of trays connected in the longitudinal direction. Background Technology

[0002] Generally, when constructing various buildings or houses, numerous electrical cables are routed above or below ground to ensure a stable supply of electricity to the interior. If these above-ground electrical cables are left unattended, it not only spoils the aesthetics but can also lead to damage to the cables.

[0003] Therefore, various electrical cables are guided by piping such as trays, ducts, or pipes, and are safely protected from moisture or humidity inside the building.

[0004] The tray supporting these electrical cables is formed with a cross-section roughly shaped like a '┗┛' and is fixed to structures such as ceilings with stud bolts.

[0005] Also, since the length of an electrical cable tray is limited, the connecting ends of the tray are connected using various materials to support long electrical cable wiring.

[0006] However, conventionally, in order to connect trays, the connecting ends of the trays had to be supported with '┗' or '┛' shaped angles and then fixed by bolting or riveting using power tools, which resulted in poor workability.

[0007] Furthermore, for the convenience of installation or maintenance, it is desirable for electrical cables to be neatly arranged in compartments according to their type or purpose. However, conventionally, cables were simply bundled and aligned using cable ties, which caused them to twist into multiple strands within the tray, making it difficult to maintain alignment and thus presenting difficulties in installation or maintenance work. Prior art literature

[0008] (0001) Republic of Korea Registered Patent No. 10-2091184 (Registration Date: March 13, 2020) (0001) Republic of Korea Registered Patent No. 10-2361497 (Registration Date: February 7, 2022) The problem to be solved

[0009] The present invention has been devised to solve the aforementioned conventional problems, and the objective of the present invention is to provide an electrical cable tray for multi-unit housing that can improve the convenience of installation and maintenance by partitioning and aligning electrical cables by type, and improve the assembly of trays connected in the longitudinal direction. means of solving the problem

[0010] To achieve the above objective, the present invention relates to an electrical cable tray for multi-unit housing, which is fixed to a ceiling structure by stud bolts and comprises a base slat supporting electrical cable wiring and side slats vertically connected to both ends of the base slat, wherein the tray comprises a plurality of coupling slots formed in a matrix arrangement on the base slat, a cable holder selectively hook-coupled to the plurality of coupling slots to partition electrical cables wired on the base slat while extending and contracting vertically, and a link frame connecting the trays connected to each other in the front and rear directions, wherein the link frame comprises a horizontal support slat supporting the bottom surface of the base slat of the trays connected to each other, a vertical support slat vertically connected to both ends of the horizontal support slat supporting the outer surface of the side slats on both sides, and a link slat horizontally connected to the top of the vertical support slats on both sides connecting the tops of the side slats.

[0011] The above cable holder may include a pair of elastic expansion pieces that are hook-coupled to both the left and right sides of the inner surface of the coupling slot and form a partition space that partitions the electric cable while elastically expanding and contracting up and down, and a cover plate that connects the upper ends of the pair of elastic expansion pieces to finish the upper part of the partition space.

[0012] The above elastic stretchable piece may further include a coupling hook provided to be hook-coupled to both sides of the inner surface of the coupling slot and a detent provided to be coupled to the upper inner surface of the coupling slot.

[0013] A pair of fastening pieces are protruded from the outer surface of the end of the mutually connected side slats to form a vertical fastening groove, and pinholes are formed on the front and rear of the link lath to pass vertically through the fastening groove of the side slats, and a fastening pin pen passing through the pinhole of the link lath is fastened to the fastening groove of the side slats to fasten the mutually connected front and rear trays. Effects of the invention

[0014] According to the present invention implemented by the above-described solution, electrical cables are partitioned and aligned by type by a cable holder coupled to the coupling slot of a tray, thereby improving the convenience of installation and maintenance.

[0015] In addition, according to the present invention implemented by the above-described solution, trays connected to each other by a link frame and a fastening pin are firmly fastened, thereby having the effect of improving assemblability. Brief explanation of the drawing

[0016] FIG. 1 is a plan view showing a tray according to an embodiment of the present invention. FIG. 2 is a perspective view showing the disassembled state of a tray and a link frame according to an embodiment of the present invention. Figure 3 is a cross-sectional view along line AA of Figure 1. Figure 4 is an enlarged view of section 'B' of Figure 2. FIG. 5 is an operational diagram showing the operating state of the cable holder in FIG. 2. Specific details for implementing the invention

[0017] In order to fully understand the present invention, preferred embodiments of the present invention will be described below with reference to the attached drawings.

[0018] Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited to the embodiments described in detail below. These embodiments are provided to more fully explain the present invention to those with average knowledge in the art.

[0019] Accordingly, it should be noted that the shapes of components depicted in the drawings may be exaggerated to emphasize clearer explanations, and that identical members may be shown with the same reference numeral in each drawing.

[0020] In addition, detailed descriptions of known functions and configurations that are deemed to unnecessarily obscure the essence of the invention may be omitted.

[0021] An electric cable tray for a multi-unit dwelling according to an embodiment of the present invention comprises a tray (100) fixed to a ceiling structure, a link frame (200) connecting trays (100) connected in the front and rear directions, and a cable holder (300) that divides and aligns electric cables (10) wired to the tray (100).

[0022] As shown in FIG. 1, the tray (100) is formed in a roughly '┗┛' cross-sectional shape, including a horizontal base slat (110) and side slats (120) vertically connected to both ends of the base slat (110).

[0023] The tray (100) can be formed by bending a single thin, flat metal plate to integrally form the base slat (110) and the side slat (120).

[0024] The tray (100) is fixed to the ceiling structure by stud bolts vertically connected to both the left and right sides of the base slat (110).

[0025] Referring to FIG. 1, a plurality of coupling slots (111) are formed in the base slat (110) to form a matrix arrangement. Here, the matrix arrangement is defined as a form in which the coupling slots (111) are arranged at predetermined intervals along the front-rear and left-right directions of the base slat (110). Optionally, the coupling slots (111) may be formed alternately in the center and on both the left and right sides within the matrix arrangement, as shown in FIG. 3. The coupling slots (111) may be formed in a long rectangular shape in the width direction of the base slat (110).

[0026] And, as shown in FIG. 1, a pair of fastening pieces (122) are protruded from the outer surface of the ends of the left and right side slats (120) that are connected front and back to form a vertical fastening groove (121). The pair of fastening pieces (122) can be formed by a process in which the portion near the end of the side slat (120) is sheared to cut into a shape of approximately ']' or '[', and then bent to protrude obliquely toward the outer surface of the side slat (120) as shown in FIG. 3. In this way, a fastening groove (121) is formed vertically between the pair of fastening pieces (122) protruding toward the outer surface of the end of the side slat (120).

[0027] The link frame (200) functions to connect the front and rear trays (100) that are connected to each other.

[0028] Referring to FIG. 1, the link frame (200) includes a horizontal support lath (210) that supports the bottom surface of the base slats (110) of the mutually connected trays (100), a vertical support lath (220) that is vertically connected to both ends of the horizontal support lath (210) to support the outer surface of both side slats (120), and a link lath (230) that is horizontally connected to the top of both vertical support laths (220) to connect the top of the side slats (120).

[0029] The link frame (200) can be formed by bending a single thin, flat metal plate to integrally form a horizontal support frame (210), a vertical support frame (220), and a link frame (230).

[0030] Pin holes (231) are formed at the front and rear of both linklass (230) to pass vertically through the fastening grooves (121) of the tray (100), and fastening pins (400) are connected. The fastening grooves (121) are formed in an elongated front-rear direction at the edge of the linklass (230) that is close to the vertical supportlass (220).

[0031] The cable holder (300) is hook-coupled to each of the multiple coupling slots (111) and extends and retracts vertically to partition and align the electrical cable (10) wired to the base slat (110).

[0032] The cable holder (300) includes a pair of left and right elastic extension pieces (310) that are hook-coupled to the inner left and right sides of the coupling slot (111) and form a partition space (320) that partitions the electric cable (10) while elastically extending up and down, and a cover plate (330) that connects the upper ends of the pair of elastic extension pieces (310) to finish the upper part of the partition space (320).

[0033] The elastic expansion piece (310) is made of a synthetic resin material having a predetermined elasticity. Referring to FIGS. 1 and 2, a pair of elastic expansion pieces (310) form a left-right symmetrical structure. Referring to FIG. 4, a coupling hook (311) is provided at the bottom of the elastic expansion piece (310) and hook-coupled to the inner surfaces of both sides of the coupling slot (111). A detent (312) is provided at the bottom of the elastic expansion piece (310) to be coupled to the upper surfaces of both sides of the coupling slot (111) to prevent the hook-coupled coupling hook (311) from being separated.

[0034] In addition, a first folding line (313) and a second folding line (314) are formed at a predetermined interval on the elastic expansion piece (310). For example, when the length of the elastic expansion piece (310) is divided into three equal parts, the first folding line (313) may be formed at a point close to the cover plate (330), and the second folding line (314) may be formed at a point close to the coupling hook (311). Optionally, the first folding line (313) may be formed to support both the left and right sides of the bottom surface of the cover plate (330). To elaborate, if both sides of the bottom surface of the cover plate (330) are supported by the first folding line (313), the cover plate (330) may be prevented from detaching into the coupling slot (111) when the cover plate (330) is pressed toward the base slat (110).

[0035] Additionally, the elastic stretchable piece (310) is formed to a predetermined length so that when it is stretched upward, it forms a partition space (320) that partitions a plurality of electric cables (10) between a pair of elastic stretchable pieces (310).

[0036] The cover plate (330) is formed in the shape of a flat rectangular plate and connects the upper ends of a pair of elastic expansion pieces (310). The cover plate (330) serves the function of finishing the upper end of the partition space (320) formed between the pair of elastic expansion pieces (310) and the function of expanding the pair of elastic expansion pieces (310) vertically. The cover plate (330) is formed to have a predetermined width so that both sides of its lower surface are supported at the first folding line (313) of the elastic expansion piece (310).

[0037] When the cable holder (300) is pressed while holding the cover plate (330) with the hand and aligning the coupling hook (311) with the inner surfaces of both sides of the coupling slot (111), the inner surfaces of both sides of the coupling slot (111) are fitted between the coupling hook (311) and the detent (312) as shown in FIG. 4 and coupled.

[0038] In this way, when the cable holder (300) coupled to the coupling slot (111) of the base slat (110) is pulled upward by holding the cover plate (330) with one's hand, the first folding line (313) and the second folding line (314) are elastically unfolded and expanded as shown in FIG. 5, thereby forming a large partition space (320), so that a plurality of electrical cables (10) wired to the base slat (110) can be inserted and partitioned.

[0039] The fastening pin (400) passes through the pin hole (231) of the link lath (230) and is fastened to the fastening groove (121) of the side slat (120) to function to fasten the front and rear trays (100) that are connected to each other.

[0040] Referring to FIG. 1, the fastening pin (400) is formed in the shape of a vertically long and flat metal piece. The top of the fastening pin (400) is provided with a pin head (410) that is bent inward by a bending process and hooked onto the upper surface of the link lath (230). The pin head (410) can be grasped by hand to easily connect or disconnect the fastening pin (400) to or from the pin hole (231).

[0041] The operation of the embodiment of the present invention configured as described above will be explained in detail with reference to the attached drawings as follows.

[0042] First, the rear end of the tray (100) positioned at the front is fitted and connected to the front end of the link frame (200), and the front end of the tray (100) positioned at the rear is fitted and connected to the rear end of the link frame (200).

[0043] At this time, the connection position is adjusted so that the pinhole (231) of the link frame (200) passes vertically through the fastening groove (121) of the front and rear tray (100).

[0044] Afterwards, the connecting pin (400) is connected to the pin hole (231) of the link frame (200) and pressed, and then connected to the connecting groove (121) of the tray (100).

[0045] Then, the two trays (100) connected front and back are fastened together as shown in FIG. 3.

[0046] Next, a cable holder (300) is connected to a connecting slot (111) of a tray (100), taking into account the number, type, and section of the electric cables (10).

[0047] Next, when the cover plate (330) of the cable holder (300) coupled to the coupling slot (111) is grasped by hand and pulled upward, the elastic expansion piece (310) expands and a partition space (320) is formed larger.

[0048] Next, when an electric cable (10) of the same type is inserted into the partition space (320) of the cable holder (300), it is wired neatly in a partitioned state within the partition space (320) as shown in FIG. 3, so that it is aligned without getting tangled or twisted with other types of electric cables (10).

[0049] According to the embodiment of the present invention described above, the electrical cables (10) are partitioned and aligned by type by the cable holder (300) coupled to the coupling slot (111) of the tray (100), thereby providing an advantage of improving the convenience of installation and maintenance.

[0050] In addition, according to the embodiment of the present invention described above, the tray (100) connected to each other by the link frame (200) and the fastening pin (400) is firmly fastened, so there is an advantage in that assembly can be improved.

[0051] The embodiments of the present invention described above are merely illustrative, and those skilled in the art will readily understand that various modifications and equivalent alternative embodiments are possible therefrom.

[0052] Therefore, it can be well understood that the present invention is not limited only to the forms mentioned in the detailed description above.

[0053] Accordingly, the true scope of technical protection of the present invention should be determined by the technical concept of the appended claims, and the present invention should be understood to include all variations, equivalents, and substitutions within the scope of the technical concept defined by the appended claims. Explanation of the symbols

[0054] 100 : Tray 110 : Bass slat 120 : Side slat 200 : Link frame 300 : Cable holder 310 : Elastic stretch piece 330 : Cover plate 400 : Fastening pin

Claims

Claim 1 An electric cable tray for multi-unit housing, which is fixed to a ceiling structure with stud bolts and comprises a base slat supporting electric cable wiring and side slats vertically connected to both ends of the base slat, wherein the tray comprises a plurality of coupling slots formed in a matrix arrangement on the base slat, a cable holder selectively hook-coupled to the plurality of coupling slots to partition electric cables wired on the base slat while extending and contracting vertically, and a link frame for connecting the trays connected to each other in the front and rear directions, wherein the link frame comprises a horizontal support slat supporting the bottom surface of the base slat of the trays connected to each other, a vertical support slat vertically connected to both ends of the horizontal support slat to support the outer surface of the side slats on both sides, and a link slat horizontally connected to the top of the vertical support slats on both sides to connect the top of the side slats, and wherein the cable holder comprises a pair of elastic expansion pieces hook-coupled to both left and right sides of the inner surface of the coupling slot to form a partition space that partitions the electric cable while elastically extending and contracting vertically, and the upper end of the pair of elastic expansion pieces connected to the upper part of the partition space An electrical cable tray for multi-unit housing characterized by including a finishing cover plate. Claim 2 delete Claim 3 An electrical cable tray for multi-unit housing according to claim 1, characterized in that the elastic expansion piece further comprises a coupling hook provided to be hook-coupled to both sides of the inner surface of the coupling slot and a detent provided to be coupled to the upper inner surface of the coupling slot. Claim 4 An electrical cable tray for multi-unit housing according to claim 1, wherein a pair of fastening pieces protrude to form a vertical fastening groove on the outer surface of the end of the mutually connected side slats, pinholes are formed on the front and rear of the link lath to pass vertically through the fastening groove of the side slats, and a fastening pin pen passing through the pinhole of the link lath is fastened to the fastening groove of the side slats to fasten the front and rear trays mutually connected.

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