Electrical Cable Alignment Device for Construction Cable Trays

Abstract

The present invention relates to an electrical cable alignment device for a cable tray for construction, comprising: a triangular cross-section tooth-shaped projection (64) formed on both inclined surfaces of a wedge portion (63) to enter and catch between spacers (50); and a moving lever (70) which is connected to a cable binding slider (60) at one end and bends the portion to be pulled out so as to bypass the lower part of the cable support channel (20) in the width direction and approach the outer surface of the cable support channel (20).

Description

Technology Field

[0001] The present invention relates to an electrical cable alignment device for a construction cable tray, and more specifically, to an electrical cable alignment device for a construction cable tray used to maintain a constant spacing of electrical cables laid by the cable tray and to bind them. Background Technology

[0002] Electric cables for supplying power to each floor of a building are laid using cable trays installed along the ceiling, floor, and walls. Electric cables laid using cable trays are particularly advantageous for maintenance, repair, and inspection.

[0003] A general cable tray is illustrated in the attached drawings, FIGS. 1 and 2. As illustrated therein, a rung (15) is installed to cross between the side rails (16) and (17) that constitute the cable tray (10). A support bar (14) is installed horizontally using nuts (13a) and (13b) that are connected to the bottom of hanger bolts (11) and (12) installed on the ceiling, and the cable tray (10) is supported using the support bar (14).

[0004] As shown in FIG. 2, an electric cable (18) is laid in a cable tray (10), and then the electric cable (18) is secured to a rung (15) using a binding band (19) so that the electric cable (18) cannot move. The binding band (19) must be secured diagonally at the intersection of the electric cable (18) and the rung (15), and as a result, a problem occurs in which the electric cable (18) bends in one direction due to the binding band (19).

[0005] In this way, when the binding band (19) is fixed in a diagonal direction, the binding band (19) cannot adhere to the insulation sheath of the electric cable (18), and the corners of the binding band (19) dig into the insulation sheath of the electric cable (18), and cracks occur in the insulation sheath of the electric cable (18). Prior art literature

[0006] Korean Registered Patent No. 10-1094743 (Published Dec. 16, 2011) Korean Registered Patent No. 10-1216994 (Published Jan. 2, 2013) Korean Registered Patent No. 10-1402169 (Published June 3, 2014) The problem to be solved

[0007] The present invention was made to solve the above-mentioned problems, and its purpose is to provide an electrical cable alignment device for a construction cable tray that can align the spacing of electrical cables installed in the cable tray at a constant level and can perform the binding work of electrical cables quickly and conveniently. means of solving the problem

[0008] delete

[0009] An electrical cable alignment device for a construction cable tray to achieve the objective of the present invention comprises: a pair of cable support channels positioned parallel to each other with a gap between them, crossing between the side rails of the cable tray; an upper catch and a lower catch formed vertically at the ends of the upper and lower plates of the cable support channels and oriented toward each other; an opening formed between the upper catch and the lower catch, respectively, and positioned between the cable support channels; a guide rail installed at the lower corner where the lower plate of the cable support channel meets the lower catch; a V-groove formed along the longitudinal direction on the upper surface of the guide rail; a spacing angle installed to be in close contact with the inner surface of the vertical wall between the upper plate of the cable support channel and the vertical wall; a rail stopper extending horizontally from the bottom of the spacing angle toward the bottom plate and in close contact with the side of the guide rail; alignment pins formed parallel to each other with a gap along the longitudinal direction of a joining plate formed on the upper part of the spacing angle; and unilateral open slots formed between the alignment pins. A spacer having a portion of its upper part inserted into a slot and welded, and maintaining a constant distance from each other by means of an alignment pin; an inverted V-groove formed in a trapezoidal shape at the bottom of the spacer; a cable binding slider with a semicircular cross section that crosses between cable support channels through an opening and is bound together with an electrical cable by a cable binding band; a pair of roller supports formed at both ends of the cable binding slider and positioned between the spacer and the guide rail; rolling rollers each installed at the bottom of the roller supports and rolling along a regular V-groove formed in the guide rail; a wedge portion with a trapezoidal cross section each formed at the top of the roller supports, which rises due to the binding force from the cable binding band and is coupled in a wedge shape to the inverted V-groove; wherein, a triangular cross-section tooth projection formed on both inclined surfaces of the wedge portion to enter and catch between the spacers; and a moving lever having one end coupled to the cable binding slider and the portion to be pulled out bending to bypass the lower part of the cable support channel in the width direction and approach the outer surface of the cable support channel.Includes.;

[0010] The present invention includes a T-shaped support formed vertically from the upper surface of a cable binding slider toward the lower part of an electrical cable; and a handle knob formed at the top of the T-shaped support for gripping and handling by hand when moving the cable binding slider. Effects of the invention

[0011] As described above, the present invention is configured such that the wedge portion (63) formed on the upper part of the roller support (61) is coupled in a wedge shape to the inverted V-groove (51) of the spacer (50) by the upward force generated when the electric cable (13) and the cable binding slider (60) are bound using the cable binding band (12), thereby having the effect of preventing left-right shaking of the cable binding slider (60).

[0012] Since the wedge portion (63) is configured to be in close contact with the inverted V-groove (51) and the tooth projection (64) enters and gets caught between the spacers (50), there is an effect of stopping the cable binding slider (60) from moving in the longitudinal direction of the cable support channel (20).

[0013] The rail stopper (41) formed on the spacing angle (40) has the effect of allowing the position of the guide rail (30) to be conveniently determined.

[0014] The spacer (50) is configured to be inserted into the slot (44) formed in the spacing angle (40) and joined, and the spacer (50) can be installed by aligning the spacing of the spacer (50) evenly using the alignment pin (43), thus making the assembly of the spacer (50) convenient.

[0015] The rolling roller (62) rolling in the V-groove (31) formed in the guide rail (30) has the effect of guiding the cable binding slider (60) and the roller support (61) in a straight line and preventing derailment.

[0016] Since the moving lever (70) connected to the cable binding slider (60) is pulled out to the outside, the cable binding slider (60) and the roller support (61) can be moved conveniently.

[0017] Since the handle knob (66) is exposed between the cable support channels (20) before laying the electric cable (13), there is also the convenience of being able to hold the handle knob (66) with one's hand and move the cable binding slider (60) in advance to position it. Brief explanation of the drawing

[0018] FIG. 1 is a bottom perspective view showing a typical cable tray. FIG. 2 is a plan view showing an electrical cable secured by a binding band in a typical cable tray. FIG. 3 is an exploded perspective view showing the main parts of the present invention. FIG. 4 is an exploded perspective view of FIG. 3 seen from below. FIG. 5 is an enlarged exploded perspective view showing a cable binding slider, a rolling roller, and a moving lever according to the present invention. FIG. 6 is an enlarged exploded perspective view showing a cable support channel, guide rail, and spacing angle according to the present invention. FIG. 7 is an enlarged exploded perspective view showing a spacing angle and a spacer according to the present invention. FIG. 8 is an enlarged cross-sectional perspective view of the main part of the present invention. FIG. 9 is an enlarged cross-sectional view showing a state in which a cable binding slider according to the present invention can descend by its own weight and move along a guide rail. FIG. 10 is an enlarged cross-sectional view showing that the cable binding slider according to the present invention is raised by the tensile force of the cable binding band, and the tooth projection enters and gets caught between the spacers. FIG. 11 is a cross-sectional view along line A-A' of FIG. 10. FIG. 12 is a perspective view showing a cable tray according to the present invention. FIG. 13 is a cross-sectional view showing a cable tray according to the present invention. Specific details for implementing the invention

[0019] Embodiments according to the present invention will be described in detail below with reference to the attached drawings, FIGS. 3 to 13.

[0020] The present invention comprises a pair of cable support channels (20) positioned parallel to each other with a gap between them, crossing between the side rails (11) of a cable tray (10); an upper catch (23) and a lower catch (24) formed vertically at the ends of the upper plate (21) and bottom plate (22) of the cable support channels (20) and formed to face each other; and an opening (25) formed between the upper catch (23) and the lower catch (24) and positioned between the cable support channels (20).

[0021] The cable support channel (20) can be formed by roller forming and bending using a steel plate of a certain thickness. Both ends of the cable support channel (20) can be welded to the inner surface of the side rail (11).

[0022] The upper catch (23) and the lower catch (24) are formed integrally with the cable support channel (20). The upper and lower width of the opening (25) is formed to be greater than the thickness of the cable binding slider (60) below.

[0023] As illustrated in FIGS. 9 to 13, the cable support channel (20) serves to support the electric cable (13). In particular, as illustrated in FIG. 10, when the electric cable (13) is bound by the cable binding band (12), the left and right sides of the electric cable (13) can be evenly supported by a pair of cable support channels (20) located on the left and right sides of the cable binding band (12).

[0024] The present invention includes a guide rail (30) installed at the lower corner where the bottom plate (22) of the cable support channel (20) meets the lower catch (24); and a V-groove (31) formed along the longitudinal direction on the upper surface of the guide rail (30).

[0025] The guide rail (30) can be molded using metal or plastic as the material. The V-groove (31) formed on the upper surface of the guide rail (30) can be formed with an inverted trapezoidal cross-section. The V-groove (31) can be formed to correspond to the cross-sectional shape of the outer surface of the rolling roller (62) below.

[0026] The guide rail (30) can be installed by adhering it to the corner of the bottom plate (22) and the lower catch (24) of the cable support channel (20).

[0027] The present invention includes a spacing angle (40) installed to be in close contact with the inner surface of the upper plate (21) of the cable support channel (20) and the vertical wall (26); and a rail stopper (41) extending horizontally from the bottom of the spacing angle (40) toward the bottom plate (22) and in close contact with the side of the guide rail (30).

[0028] The spacing angle (40) can be formed using a steel plate of a certain thickness. The spacing angle (40) can be attached to the inner surface of the cable support channel (20). The rail stopper (41) can be formed to be parallel to the lower catch (24), and a guide rail (30) is installed by inserting it between the lower catch (24) and the rail stopper (41).

[0029] The present invention includes alignment pins (43) formed in parallel with spacing along the length direction of a joining plate (42) formed on the upper part of a spacing angle (40); and unilaterally open slots (44) formed between the alignment pins (43).

[0030] As shown in FIGS. 6 and 7, notch-shaped slots (44) can be punched at regular intervals in the bonding plate (42) so that alignment pins (43) are formed between the slots (44).

[0031] The alignment pin (43) serves to maintain a constant spacing of the spacers (50). The slot (44) can be formed with a width that matches the thickness of the spacers (50).

[0032] The present invention includes a spacer (50) that is welded by inserting a portion of its upper part into a slot (44) and maintains a constant distance from each other by means of an alignment pin (43); and an inverted V-groove (51) formed in a trapezoidal shape at the bottom of the spacer (50).

[0033] When the electric cable (13) is connected with the cable connecting band (12), the cable connecting slider (60) and the roller support (61) rise, and at this time, the following tooth-shaped projections (64) are inserted and caught between the spacers (50).

[0034] When the tooth-shaped projection (64) enters and gets caught between the spacers (50), the cable binding slider (60) is unable to move in the longitudinal direction of the cable support channel (20). The inverted V-groove (51) formed at the bottom center of the spacer (50) can be formed to correspond to the cross-sectional shape of the wedge portion (63) below.

[0035] After inserting the top of the spacer (50) into the slot (44) formed in the spacing angle (40), the spacer (50) can be joined to the spacing angle (40) by brazing welding or bonding.

[0036] The present invention includes a cable binding slider (60) having a semicircular cross section that crosses between cable support channels (20) through an opening (25) and is bound together with an electric cable (13) by a cable binding band (12); and a pair of roller support members (61) formed at both ends of the cable binding slider (60) and positioned between a spacer (50) and a guide rail (30).

[0037] The cable binding slider (60) and the roller support (61) can be integrally formed by precision casting or injection molding using metal or plastic as the material. As shown in FIG. 11, the cable binding slider (60) is formed with a semicircular cross-section that is convex toward the bottom.

[0038] When the cable binding slider (60) moves along the longitudinal direction of the cable support channel (20), the roller support (61) moves together with the cable binding slider (60) between the spacer (50) and the guide rail (30). When the cable binding slider (60) is raised by the cable binding band (12), the roller support (61) also rises together with the cable binding slider (60).

[0039] The present invention includes a rolling roller (62) that rolls along a regular V-groove (31) formed in a guide rail (30) and is installed at the bottom of a roller support (61); and a wedge portion (63) with a trapezoidal cross section that is formed at the top of a roller support (61), rises due to the binding force of a cable binding band (12), and is coupled in a wedge shape to an inverted V-groove (51).

[0040] An annular projection with a trapezoidal cross-section can be formed on the outer surface of the rolling roller (62). The outer edge of the annular projection formed on the rolling roller (62) can be formed to match the inner angle of the regular V-groove (31).

[0041] The wedge portion (63) is formed in a shape corresponding to the inverted V-groove (51) formed in the spacer (50). As shown in FIG. 5, a clevis groove (67) can be formed at the bottom of the roller support (61) so that a rolling roller (62) can enter and rotate freely.

[0042] A roller shaft (69) can be formed at the center of both ends of the rolling roller (62). The roller shafts (69) can be formed by protruding in opposite directions so that their centers coincide. As another example, the roller shaft (69) can be constructed as a separate metal pin and installed by pressing it into the center of the rolling roller (62).

[0043] An open hole (68) can be formed at the bottom of the roller support (61) to support the roller shaft (69) by inserting the roller shaft (69) in a direction perpendicular to the shaft. A V-shaped chamfer can be formed at the inner corner of the open hole (68) to facilitate the entry of the roller shaft (69).

[0044] The present invention includes a triangular cross-section tooth-shaped projection (64) formed on both inclined surfaces of a wedge portion (63) to enter and catch between spacers (50); and a moving lever (70) which is connected to a cable binding slider (60) at one end and bends the portion to be pulled out so as to bypass the lower part of the cable support channel (20) in the width direction and approach the outer surface of the cable support channel (20).

[0045] The tooth protrusions (64) can be formed at regular intervals along the length direction of the wedge portion (63). The spacing of the tooth protrusions (64) is formed at the same interval as the spacing of the spacers (50). The moving lever (70) can be formed by bending steel wire, for example, into a U-shape.

[0046] One end of the moving lever (70) can be installed by pressing it into a press-fit hole (60h) formed on the bottom surface of the cable binding slider (60). When pressing one end of the moving lever (70) into the press-fit hole (60h), if adhesive is injected into the press-fit hole (60h), the moving lever (70) can be prevented from coming off.

[0047] The present invention includes a T-shaped support (65) formed vertically toward the lower part of an electric cable (13) on the upper surface of a cable binding slider (60); and a handle knob (66) formed on the upper end of the T-shaped support (65) for holding and handling by hand when moving the cable binding slider (60).

[0048] The T-shaped support (65) can be formed vertically upward from the upper surface of the cable binding slider (60). A concave semicircular groove (not shown) can be formed on the front rear surface of the handle knob (66). This semicircular groove serves to prevent slipping when gripping the handle knob (66).

[0049] As shown in FIG. 10, when the cable binding slider (60) rises, the T-shaped support (65) rises together with the cable binding slider (60), and when the wedge portion (63) stops in close contact with the inverted V-groove (51), the upper surface of the T-shaped support (65) can be formed to form a gap with the lower part of the electric cable (13).

[0050] The assembly of the cable binding slider (60), roller support (61), rolling roller (62), moving lever (70), T-shaped support (65), and handle knob (66) is installed in advance on the inside of the cable support channel (20) before welding both ends of the cable support channel (20) to the side rail (11).

[0051] The operation according to the present invention will be described in detail below with reference to the attached drawings.

[0052] After aligning the spacing between the electric cables (13) laid in the cable tray (10) evenly, hold the moving lever (70) with your hand and move it along the length of the cable support channel (20) to position it directly below the electric cables (13).

[0053] When force is transmitted from the moving lever (70) to the cable binding slider (60), the cable binding slider (60) and the roller support (61) move along the moving lever (70), and the rolling roller (62) installed on the roller support (61) rolls along the regular V-groove (31) formed in the guide rail (30). At this time, the cable binding slider (60) and the roller support (61) are guided in a straight line by the rolling roller (62) rolling along the regular V-groove (31) formed in the guide rail (30).

[0054] As shown in FIGS. 11 and 13, the moving lever (70) is positioned directly below the electric cable (13), and then the cable binding band (12) is inserted between the cable support channels (20) to bind the cable binding slider (60) and the electric cable (13) by wrapping the cable binding band (12) around them. Then, as shown in FIG. 10, the cable binding slider (60) and the roller support (61) rise.

[0055] At this time, the tooth projection (64) enters and gets caught between the spacers (50), and the wedge portion (63) adheres in a wedge shape to the inverted V-groove (51) formed in the spacers (50). Due to the tooth projection (64) that enters and gets caught between the spacers (50), the roller support (61) and the cable binding slider (60) are prevented from moving in the longitudinal direction of the cable support channel (20), and the electric cable (13) connected to the stationary cable binding slider (60) continuously maintains an aligned state. Explanation of the symbols

[0056] 10 : Cable tray 11 : Side rail 12 : Cable binding band 13 : Electrical cable 20 : Cable support channel 21 : Top plate 22 : Bottom plate 23 : Upper catch tab 24 : Lower stopper 25 : Opening 26 : Vertical wall 30 : Guide rail 31 : Fixed V-home 40 : Spacing angle 41 : Rail stopper 42 : Connecting plate 43: Alignment pin 44: Slot 50 : Spacer 51 : Inverted V-groove 60: Cable binding slider 61: Roller support 62 : Roller 63 : Wedge 64: Tooth-shaped process 65: T-shaped support 66 : Handle knob 70 : Moving lever

Claims

Claim 1 delete Claim 2 A pair of cable support channels (20) positioned parallel to each other with a gap between them, crossing between the side rails (11) of the cable tray (10); an upper catch (23) and a lower catch (24) formed vertically at the ends of the upper plate (21) and bottom plate (22) of the cable support channels (20) and formed to face each other; an opening (25) formed between the upper catch (23) and the lower catch (24) respectively and positioned between the cable support channels (20); a guide rail (30) installed at the lower corner where the bottom plate (22) of the cable support channels (20) and the lower catch (24) meet; a V-groove (31) formed along the length direction on the upper surface of the guide rail (30); a spacing angle (40) installed to be in close contact with the inner surface of the upper plate (21) of the cable support channels (20) and the vertical wall (26); the spacing A rail stopper (41) extending horizontally from the bottom of the angle (40) toward the bottom plate (22) and adhering to the side of the guide rail (30); alignment pins (43) formed in parallel with spacing along the length direction of the joining plate (42) formed on the upper part of the spacing angle (40); and one-sided open slots (44) formed between the alignment pins (43). A spacer (50) that maintains a constant distance from each other by means of an alignment pin (43) and has a portion of its upper part inserted into the slot (44) and welded; an inverted V-groove (51) formed in a trapezoidal shape at the bottom of the spacer (50); a cable binding slider (60) with a semicircular cross section that crosses between the cable support channels (20) through the opening (25) and is bound together with the electric cable (13) by means of a cable binding band (12); a pair of roller supports (61) formed at both ends of the cable binding slider (60) and positioned between the spacer (50) and the guide rail (30); and rolling rollers (62) each installed at the bottom of the roller supports (61) and rolling along the regular V-groove (31) formed in the guide rail (30).An electrical cable alignment device for a construction cable tray comprising: a wedge portion (63) having a trapezoidal cross section formed on the upper end of the roller support (61) and rising by the binding force of the cable binding band (12) to be coupled in a wedge shape to the inverted V-groove (51); wherein the device comprises: a tooth-shaped projection (64) having a triangular cross section formed on both inclined surfaces of the wedge portion (63) to enter and catch between the spacers (50); and a moving lever (70) having one end coupled to the cable binding slider (60) and the portion to be pulled out bending to bypass the lower part of the cable support channel (20) in the width direction and approach the outer surface of the cable support channel (20). Claim 3 An electrical cable alignment device for a construction cable tray, characterized in that, in paragraph 2, it includes: a T-shaped support (65) formed vertically toward the lower part of the electrical cable (13) from the upper surface of the cable binding slider (60); and a handle knob (66) formed at the top of the T-shaped support (65) for holding and handling by hand when moving the cable binding slider (60).

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