KR20100009168U - The Cover of Wiring Duct - Google Patents

Abstract

The present invention relates to a wiring duct and a wiring duct cover in which the wiring duct main body and the wiring duct cover are not easily separated by an externally applied pressure.

According to the present invention, the wiring duct body and the wiring duct cover are separated from each other by the pressure applied from the outside while the wiring duct body and the wiring duct cover are combined, or the wiring duct cover is not recessed into the wiring duct body. Wires and cables accommodated in the is not damaged, there is an effect that can be used safely by the user.

Wiring duct, wiring duct cover, safety inspection, cover separation, departure prevention, depression

Description

Wiring Ducts and Wiring Duct Covers {The Cover of Wiring Duct}

The present invention relates to a wiring duct cover and a wiring duct in which the wiring duct main body and the wiring duct cover are not easily separated by an externally applied pressure.

When laying wires or cables such as telephone cables, wires, computer-related cables, data cables, speaker cables, etc., which are installed inside the building, make sure that the cables or wires are not exposed to the outside and to enhance the aesthetics of the entire space. Ducts are being used.

For the wiring duct used for this purpose, the inventor of the present invention proposed the Republic of Korea Utility Model Registration No. 171332 [wiring duct] and 171330 [wiring duct cover].

The Republic of Korea Utility Model No. 171332 relates to a wide wiring duct designed to accommodate a wide variety of wiring devices, to eliminate the gap caused by the size difference between the wiring duct body and the wiring device, and from the wiring duct body The wiring duct cover can be easily removed. This will be described with reference to FIGS. 1 and 2.

As shown in FIG. 1, the inner extension portion 22 extends horizontally inwardly by a predetermined distance from the upper ends of both side surfaces of the wiring duct main body 20 so that the wiring mechanism and the wiring at the time of fixing the wiring mechanism (not shown). The gap between the duct main body 20 is covered, and the inner extension part 22 is vertically bent in the inward direction of the wiring duct main body 20 to create the support groove 26, and the end is formed by bending in the horizontal direction again. The engaging projection 24 is formed in the.

The wiring duct cover 10 includes an insertion hole 12 inserted into the support groove 26 of the wiring duct main body 20, and a cover protrusion 14 elastically engaged with the coupling protrusion 24 of the wiring duct main body 20. The cover protrusion 140 of the wiring duct cover 10 is engaged with and fitted to the coupling protrusion 24 of the wiring duct body 20.

The wiring duct cover 10 is inserted into the wiring duct main body 20 by covering the wiring duct cover 10 with the upper surface of the wiring duct main body 20 so as to be superimposed, and then applying a constant force to the wiring duct cover 10. When applied, the cover protrusion 14 formed on the wiring duct cover 10 is pressed into the coupling protrusion 24 of the wiring duct body 20, and the insertion hole 12 of the wiring duct cover 10 is connected to the wiring duct body. The wiring duct cover 10 is inserted into the support groove 26 of the 20 and is coupled to the wiring duct body 20.

A method of separating the wiring duct body 20 and the wiring duct cover 10 coupled as described above is shown in FIG. 2. In the gap between the wiring duct cover 10 and the inner extension part 22, an opener (op) such as a plastic flat plate made of a material having a weaker strength than that of the inner extension part 22 is inserted and pushed or pressed in the direction of the arrow. According to the principle, the wiring duct cover 10 can be easily separated from the wiring duct body 20.

However, this conventional technology has a problem in that the wiring duct cover is easily separated from the wiring duct body without a rattling or an opener by a gap to facilitate the separation.

In addition, the prior art of the configuration as described above in the state in which the bottom surface of the wiring duct is fixed to the wall (1), the wiring duct main body 20 and the wiring duct cover 10 is coupled, When the lump 2 is put on the upper surface of the upper side of the wiring duct main body 20 and the pressure (the force generated by lifting a heavy object) is applied, the wiring duct cover 10 is bent and bounced off. There is a problem of separation from the duct body 20. In particular, this problem causes failure of the bending test during the safety test.

The Republic of Korea Utility Model No. 171330 relates to a narrow wiring duct designed narrow, when the pressure applied to one side of the wiring duct cover from the wiring duct cover is inserted into the wiring duct body more than necessary, or press the center part In this case, the wiring duct cover is proposed to solve the problem of completely entering the inside of the wiring duct body.

As shown in FIG. 4, both side surfaces 62 of the wiring duct main body 60 have a coupling portion 68 and a recess 64 coupled to the cover protrusion 56 of the wiring duct cover 50, and a rolling prevention jaw. 66 is formed. The surface of the wiring duct cover 50 in which the coupling portion 68 is in contact with the wiring duct cover 50 has a diameter of about 45 ° to facilitate the coupling of the wiring duct cover 50 and the wiring duct body 60. It is composed of photo slopes.

Both end portions of the wiring duct cover 50 are provided with a cover separation preventing insertion hole 52 to secure the wiring duct cover 50 to the wiring duct main body 60.

In the coupling between the wiring duct main body 60 and the wiring duct cover 50, an insertion opening 52 for preventing cover separation is inserted into the groove 64 of the wiring duct main body 60, and the sliding prevention jaw 60 is removed from the cover. It is inserted into the prevention insertion groove (54).

However, this prior art, as shown in Figure 5, when performing the impact test of the safety test test to drop a ball of a certain weight at a height above a certain distance of the upper portion of the wiring duct cover 50, the coupling The inclined inclined surface of the part 68 and the wiring duct cover 50 slides into the wiring duct main body 60, and the wiring duct cover 50 inclines to one side and the wiring duct main body 60 It still has a problem that the side of the protrudes outward.

The present invention is to solve the above problems, in the case of a wide wiring duct, the wiring duct main body and the wiring duct cover double bit by using the short projection and the long projection of the wiring duct cover and the semicircle of the wiring duct cover An object of the present invention is to provide a wiring duct cover in which the groove portion and the semicircular protrusion portion of the wiring duct body come into contact with each other without a gap to prevent the wiring duct cover from being separated from the wiring duct body due to externally applied pressure.

In addition, in the case of narrow narrow wiring duct, the circular protrusion is provided in the wiring duct cover and the circular protrusion of the wiring duct body is wrapped and inserted into the circular groove so as to be coupled to the circular duct. It is an object of the present invention to provide a wiring duct cover which does not push into the interior of the wiring duct body by dispersing it.

In order to achieve the above object, the present invention provides an inner extension portion in which upper ends of both side surfaces of the wiring duct main body in which the lower portion and both sides are closed for accommodating an electric wire, etc., extend horizontally inward, and an end portion of the inner extension portion is directed downward. A wiring duct body including a coupling protrusion formed vertically bent and horizontally bent, a semicircular protrusion projecting from the inner extension portion and a connection portion of the coupling protrusion, and a support groove formed by the semicircular protrusion and the coupling protrusion; ,

A semicircular groove coupled to an upper portion of the wiring duct main body and having a plate shape, and having both end portions of the plate dug inward to engage and engage with the semicircular protrusion, and a short protrusion protruding from the semicircular groove and inserted into the support groove; Consists of a wiring duct cover protruding perpendicularly to the inner side of the short protrusion and including a long protrusion engaged with the coupling protrusion,

Since the semi-circular protrusion and the semi-circular groove portion is engaged with each other and relates to a wiring duct strengthening the coupling force of the wiring duct body and the wiring duct cover.

An end portion of the coupling protrusion of the wiring duct body may include a coupling protrusion end projecting upward to facilitate coupling with the long protrusion of the wiring duct cover.

In addition, end portions of the short protrusions and the long protrusions of the wiring duct cover may have a circular cross section.

In addition, the present invention is a circular projection provided on the upper end of both sides of the wiring duct main body and the lower side and both sides closed to accommodate the wire, support projections protruding from the inner side below the circular projections, and below the support projection A wiring duct body including an insertion groove provided therein;

It is coupled to the upper portion of the wiring duct body and has the shape of a plate, both end portions are bent vertically, the bent end is a second cover protrusion which is inserted into the insertion groove, and the support protrusion above the second cover protrusion And a cover groove into which the cover groove is inserted, a first cover protrusion coupled between the support protrusion and the circular protrusion and provided on an upper portion of the cover groove, and a circular groove dug inwardly so as to contact the circular protrusion following the first cover protrusion. Consists of wiring duct cover,

It relates to a wiring duct so that the wiring duct cover is not easily separated from the wiring duct body by dispersing the force applied from the outside by the combination of the circular groove and the circular protrusion.

The wiring duct cover may include a fixture insertion protrusion which protrudes perpendicularly to the lower surface of the wiring duct cover and has an end portion bent horizontally to fit the wiring fixture fixture.

In addition, the wiring duct cover that is coupled to the upper side of the wiring duct main body is closed and both sides to accommodate the electric wire, etc. has a plate shape and both ends are vertically bent, the end is provided in the insertion groove of the wiring duct main body A second cover protrusion to be inserted, a cover groove into which a support protrusion of the wiring duct body is inserted above the second cover protrusion, and a support protrusion of the wiring duct body and a circular protrusion at both upper ends thereof, And a first cover protrusion provided and a circular groove dug inwardly so as to be in contact with the circular protrusion subsequent to the first cover protrusion.

According to the present invention having the above-described configuration, the wiring duct cover of the wide wiring duct is coupled to the wiring duct main body with a short bit and a long projection by double biting, and the semicircular groove portion is joined to the semicircular protrusion of the wiring duct main body without any gap. Therefore, there is an effect that the wiring duct cover is bent out of the wiring duct main body so as not to be separated even from externally applied pressure.

In addition, the wiring duct cover of the narrow narrow wiring duct is provided with a circular groove for inserting and coupling to surround the circular protrusions at both upper ends of the wiring duct main body, thereby distributing the external pressure applied to the wiring duct cover to provide a wiring duct cover. There is an effect that it is not pushed into the wiring duct body.

The wiring duct cover of the present invention is combined with the wiring duct main body without any gap, so that the shape of the wiring duct is not deformed by the pressure applied from the outside and the wiring duct cover and the wiring duct main body are not easily separated. The risk of damage to the cables is small and the safety is effective.

Hereinafter, with reference to the embodiment shown in the accompanying drawings, the subject innovation described as follows. In the following description, the shape of the wiring duct cover and the state in which the wiring duct cover and the wiring duct main body are coupled will be described.

6 to 8 are views illustrating a wiring duct cover and a wiring duct body of a wide wiring duct designed according to the present invention.

FIG. 6 is a cross-sectional view of the wiring duct main body and the wiring duct cover of the wide wiring duct.

The wide wiring duct of the present invention is composed of a wiring duct main body 200 and a wiring duct cover 100. The wiring duct main body 200 includes an inner extension part 202, a coupling protrusion 204, a coupling protrusion end 204a, a support groove 206, and a portion that is coupled to the wiring duct cover 100. It is configured to include a semi-circular protrusion 210.

The inner extension part 202 is formed by horizontally extending both sides of the wiring duct main body 200 to the inside of the wiring duct main body 200, and an inner extension part which is not connected to both sides of the wiring duct main body 200 ( An end portion of the wire 202 is bent vertically toward the bottom of the wiring duct main body 200 and then bent horizontally to form a coupling protrusion 204.

An end portion not connected to the inner extension portion 202 of the coupling protrusion 204 protrudes in a hook shape in a direction opposite to the bottom surface of the wiring duct to form the coupling protrusion end 204a.

The semicircular protrusion 210 is formed at a portion in which the inner extension part 202 is bent vertically toward the bottom of the wiring duct main body 200, and is coupled to the semicircular groove 110 of the wiring duct cover 100 in contact with each other. do. The lower end of the semi-circular protrusion 210 is engaged with the end of the short projection 102 of the wiring duct cover 100.

A support groove 206 in which the short protrusion 102 of the wiring duct cover 100 is positioned is formed in the inner space formed by the semi-circular protrusion 210 and the coupling protrusion end 204a.

The inner extension part 202, the coupling protrusion 204, the coupling protrusion end 204a, the support groove 206, and the semicircular protrusion 210 are provided on both side surfaces of the wiring duct body 200.

The wiring duct cover 100 coupled to the wiring duct main body 200 having the above configuration has a short protrusion 102, a long protrusion 104, and a semicircular groove at a portion that is coupled to the wiring duct main body 200. And 110.

The wiring duct cover 100 is coupled to an open upper portion of the wiring duct body 200 and has a plate shape.

The short protrusion 102 is formed by bending both ends of the wiring duct cover 100 in an oblique direction about 45 ° downward, and configured to have a circular cross section at an end portion thereof.

The bent end of the wiring duct cover 100 and the portion where the short protrusion 102 is connected are provided with a semicircular semicircular groove portion 110 which is dug inwardly. The semicircular groove 110 is formed to be in contact with the semicircular protrusion 210 of the wiring duct main body 200 when the wiring duct cover 100 is coupled to the wiring duct main body 200.

The long protrusion 104 is vertically projected toward the bottom of the wiring duct main body 200 and is formed longer than the short protrusion 102 where the long protrusion 104 enters inward from the short protrusion 102. The end of the cross section is configured to have a circle shape.

The coupling protrusion end 204a of the wiring duct body 200 is inserted into the groove formed between the short protrusion 102 and the long protrusion 104, and the long protrusion 104 of the coupling protrusion end 204a is inserted into the groove formed between the short protrusion 102 and the long protrusion 104. Engaged in engagement with the outer side.

FIG. 7 is a perspective view showing an enlarged portion of the wiring duct main body and the wiring duct cover of the wide wiring duct, in which the circle shown in FIG. 6 is enlarged.

The semicircular protrusion 210 of the wiring duct main body 200 is formed to protrude in a semicircular shape at a portion where the inner extension 202 is bent vertically, and the semicircular groove 110 of the wiring duct cover 100 is formed. ) Is formed to form a groove in the shape of a semi-circle so as to engage with the semi-circular protrusion (210).

A short protrusion 102 having a cross-sectional shape is formed below the semi-circular groove 110, and an end of the short protrusion 102 is coupled to the bottom of the semi-circular protrusion 210 in abutted manner. .

The semicircular groove 110 and the semicircular protrusion 210 are coupled to each other, so that the wiring duct main body 200 and the wiring duct cover 100 are coupled to each other, and then the coupling duct body 200 and the wiring duct cover 100 are coupled to each other. There is no gap. In addition, the short protrusion 102 is coupled to the lower side of the semi-circular protrusions 210 in contact, thereby strengthening the coupling force.

Therefore, the coupling of the semicircular groove 110 and the semicircular protrusion 210 and the coupling of the short protrusion 102 to the wiring duct main body (in addition to the coupling of the long protrusion 104 and the coupling protrusion 204) is further described. Since 200 and the wiring duct cover 100 are configured to be coupled, the bonding force is more firmly maintained so that the wiring duct cover 100 is not easily separated from the wiring duct body 200.

FIG. 8 illustrates the direction in which the force applied from the upper portion of the wiring duct cover and the force that the wiring duct body tries to maintain the shape elastically when the wiring duct main body and the wiring duct cover of the wide wiring duct are coupled. The figure shown.

The wide wiring duct having the configuration described above is coupled to the semicircular groove portion 110 and the short protrusion 102 on one side of the wiring duct cover 100 in contact with the semicircular protrusion portion 210, and the coupling protrusion 204 is shortened. Inserted between the projection 102 and the long projection 104, the long projection 104 is engaged to the outer surface of the engaging projection end 204a,

Applying a force to the mating opposite side of the wiring duct cover 100 so that the opposite long projection and the end of the engaging projection is pushed down so that the long projection is located below the end of the engaging projection, the side of the wiring duct main body 200 Opened outward and the force acts inwardly to the elasticity, the long projection is engaged by the end of the engaging projection, and the short projection and the short projection engaging portion, the semicircular groove portion and the semicircular projection portion are in contact with each other.

In addition, both sides of the wiring duct cover 100 can be combined by pressing the same force at the same time and combining them at once.

9 to 11 are views illustrating a wiring duct cover and a wiring duct main body of a narrow wiring duct designed to have a narrow width according to the present invention.

Fig. 9 is a sectional view of the wiring duct main body and the wiring duct cover of the narrow wiring duct.

The narrow wiring duct of the present invention includes a wiring duct body 600 and a wiring duct cover 500. The wiring duct body 600 protrudes from the side surface 602 toward the inside of the wiring duct body 600 under the circular protrusion 608 provided at the upper end portions of both side surfaces 602 and the circular protrusion 608. It is composed of a support protrusion 606 is provided, and the insertion groove 604 provided below the support protrusion 606.

The circular protrusion 608 has a structure in which end portions are directed inwards at upper ends of both side surfaces of the wiring duct main body 600 and has a circular cross section, and the circular groove 510 of the wiring duct cover 500 is formed. And engage in engagement with the.

The support protrusion 606 is formed to protrude horizontally from both side surfaces 602 of the wiring duct main body 600 into the wiring duct main body 600, and is inserted into the cover groove 504 of the wiring duct cover 500. Assists the coupling of the wiring duct main body 600 and the wiring duct cover 500.

The insertion groove 604 is provided below the support protrusion 606, the second cover protrusion 502 of the wiring duct cover 500 is inserted, the wiring duct cover 500 is the wiring duct body 600 It prevents you from leaving.

The wiring duct cover 500 coupled to the wiring duct body 600 having the above configuration includes a second cover protrusion 502, a cover groove 504, a first cover protrusion 506, and a first fixing tool. The insertion groove 508, the first fixture insertion protrusion 509, the circular groove 510, and the second fixture insertion protrusion 512 are configured.

The second cover protrusion 502 is provided at both ends of the wiring duct cover 500 and fixes the wiring duct cover 500 to the wiring duct body 600 to prevent the wiring duct cover 500 from being separated. And, it is inserted into the insertion groove 604 of the wiring duct body 600 and is coupled to the lower side of the support protrusion 606.

The second cover protrusion 502 may be configured to be long to be inserted deep into the insertion groove 604, and may be formed to be short so as to be weakly caught in order to facilitate separation of the wiring duct cover 500 and the wiring duct body 600. It may be.

The cover groove 504 is a groove formed above the second cover protrusion 502 and below the first cover protrusion 506, and the support protrusion 606 of the wiring duct body 600 is inserted therein. do.

The first cover protrusion 506 is inserted between the circular protrusion 608 of the wiring duct main body 600 and the support protrusion 606 to the inner surface of the side surface 602 of the wiring duct main body 600. Combine by contact. In other words, even if a force is applied to the wiring duct cover 500 from the outside by being placed on the upper surface of the support protrusion 606, the wiring duct cover 500 is supported by the support duct body 600. It will not be pushed into the inside of.

The circular groove 510 is provided in the shape of a circle upwards of the first cover protrusion 506 and engages with and engages with the circular protrusion 608 of the wiring duct body 600.

The first fixing tool insertion protrusion 509 is formed to protrude horizontally inward from both sides of the wiring duct cover 500, and a bent portion to which the first cover protrusion 506 and the second cover protrusion 502 are connected. It is provided at the top.

The first fixture insertion groove 508 is formed between the first fixture insertion protrusion 509 and the bent portion, and a wiring mechanism fixture (not shown) for fixing a wiring mechanism (not shown) is fixed.

The second fixing tool insertion protrusion 512 is protruded in the lower direction of the wiring duct main body 600 on the lower side of the wiring duct cover 500 and is provided in the shape of a hook that is bent horizontally inward. The second fixture insertion protrusions 512 are provided one by one with a width wide enough to allow a wiring fixture fixture (not shown) to be inserted therein.

FIG. 10 is an enlarged perspective view of a portion of the narrow wiring duct in a state in which the wiring duct main body and the wiring duct cover are coupled to each other, and the original view shown in FIG. 9 is enlarged.

The circular groove 510 is configured to engage with the circular protrusion 608 as much as possible, the circular groove 510 is wrapped around the circular protrusion 608 and coupled.

According to the present invention, the first cover protrusion 506 is engaged to the bottom of the circular protrusion 608 and is placed on the upper side of the support protrusion 606, and the second cover protrusion 502 is the insertion groove 604. In addition to the coupling that is inserted into the fastening and fixed to the support protrusion 606,

In addition, the circular groove 510 and the circular protrusion 608 are formed to bond more firmly so that the coupling duct cover 500 is not recessed or inserted into the wiring duct main body 600. .

FIG. 11 is a cross-sectional view illustrating a direction in which a force applied from an upper portion of a wiring duct cover is dispersed in a state in which the wiring duct main body and the wiring duct cover of the narrow wiring duct are coupled.

In the narrow wiring duct having the above configuration, when a force is applied from the upper portion of the wiring duct cover 500 to couple the wiring duct cover 500 to the wiring duct main body 600, the inside of the wiring duct main body 600 is fixed. The lower end of the wiring duct cover 500 is inserted.

The second cover protrusion 502 of the wiring duct cover 500 is inserted into the insertion groove 604 of the wiring duct body 600, and the wiring duct of the wiring duct cover 500 is inserted into the cover groove 504 of the wiring duct cover 500. The support protrusion 606 of the main body 600 is inserted and fixed, and the first cover protrusion 506 of the wiring duct cover 500 is positioned between the support protrusion 606 and the circular protrusion 608. Coupled to the shape placed on top of the support protrusion 606. The circular protrusion 608 engages with and engages with the circular groove 510 of the wiring duct cover 500.

Therefore, when the wiring duct cover 500 is to be removed from the wiring duct body 500, the second cover protrusion 502 is on the support protrusion 606, and the support protrusion 606 is on the first cover. It is a shape which is caught and fixed by the projection 506.

When the narrow wiring duct coupled as described above is subjected to a strong pressure (such as dropping a heavy object such as a steel ball) from the outside of the wiring duct cover 500, the circular groove 510 and the circular protrusion 608 The force is distributed to both lower ends by the coupling structure.

That is, the force applied from the outside is divided into the outside and the inside of the wiring duct main body 600 so that the wiring duct cover 500 is not recessed into the wiring duct main body 600.

Three product recognition grooves L are formed along the longitudinal direction of the upper center portion of the wiring duct cover and both sides of the wiring duct main body, which are the products of the company when the applicant manufactures and sells the product. For easy identification. However, this groove (L) is not intended to limit the technical scope of the present invention, it is intended merely for the purpose of recognizing its products.

As described above by taking the present invention as an example, the present invention is not limited to the above-described example, the rights of the present invention is determined according to the appended claims. In addition, various modifications of the present invention can be carried out by those skilled in the art, but it is obvious that all belong to the scope of the present invention.

1 is a cross-sectional view of a wide wiring duct according to the prior art.

2 is a view illustrating a method of removing a cover from a wide wiring duct body according to the prior art.

3 is a perspective view showing a warpage phenomenon of the wide wiring duct according to the prior art.

4 is a cross-sectional view of a narrow wiring duct according to the prior art.

5 is a view showing a phenomenon in which the wiring duct cover of the narrow wiring duct according to the prior art.

Figure 6 is a cross-sectional view showing a state in which the main body and the cover of the wide wiring duct according to the present invention.

FIG. 7 is an enlarged perspective view of a part of a coupling state of a main body and a cover of the wide wiring duct of FIG. 6.

8 is a view showing the direction of the operating force when the cover and the main body of the wide wiring duct according to the present invention.

9 is a cross-sectional view showing a coupling state of the main body and the cover of the narrow wiring duct according to the present invention.

FIG. 10 is a partially enlarged perspective view of a state in which a main body and a cover of the narrow wiring duct of FIG. 9 are coupled to each other; FIG.

11 is a cross-sectional view illustrating a direction in which pressure is dispersed when a main body and a cover of the narrow wiring duct according to the present invention are coupled and a force is applied from the top of the cover.

<Explanation of symbols for the main parts of the drawings>

10, 100: wiring duct cover 20, 200: wiring duct body

12: insertion hole 14: cover projection

22, 202: inner extension 24, 204: engaging projection

24a, 204a: end portions of the engaging projection 26, 206: support groove

102: short projection 104: long projection

110: semi-circular groove 210: semi-circular protrusion

50, 500: wiring duct cover 60, 600: wiring duct body

52: insertion hole for preventing cover separation 54: insertion groove for preventing cover separation

56: cover protrusion 58: fastener insertion groove

59: first fixing tool insertion protrusion 62: side

64: groove 66: jungle prevention jaw

68: coupling portion 502: second cover protrusion

504: cover groove 506: first cover protrusion

508: first fixture insertion groove 509: first fixture insertion protrusion

512: insertion hole of the second fixture 510: circular groove

Claims (6)

An inner extension portion in which upper ends of both sides of the wiring duct main body in which the lower portion and both sides are closed to accommodate an electric wire is horizontally extended inwardly, and an end portion of the inner extension portion is vertically bent downwardly and then bent horizontally. A wiring duct body including a coupling protrusion, a semicircular protrusion projecting from the inner extension portion and a connecting portion of the coupling protrusion, and a support groove formed by the semicircular protrusion and the coupling protrusion; A semicircular groove having a plate shape, both end portions of the plate are dug inward to engage and engage with the semicircular protrusion, a short protrusion which is subsequently protruded into the support groove and is inserted into the support groove, and is perpendicular to the inside of the short protrusion. Consists of a wiring duct cover that protrudes and comprises a long projection engaging with the coupling projection, Wiring duct characterized in that the coupling between the semicircular protrusion and the semicircular groove portion is coupled to the wiring duct body and the wiring duct cover. The method of claim 1, And an end portion of the coupling protrusion of the wiring duct body including an end portion of the coupling protrusion protruding upward to facilitate coupling with the long protrusion of the wiring duct cover. The method according to claim 1 or 2, Wiring duct, characterized in that the end of the short projection and the long projection has a circular cross section A circular protrusion provided at upper ends of both sides of the wiring duct main body in which the lower side and both sides of the wire are closed to accommodate an electric wire, a support protrusion protruding from the inner side under the circular protrusion, and an insertion groove provided at the bottom of the support protrusion. Wiring duct body to include, It has a plate shape, both end portions are bent vertically and provided at the end, and the second cover protrusion inserted into the insertion groove, the cover groove into which the support protrusion is inserted above the second cover protrusion, the support protrusion and the circular And a wiring duct cover including a first cover protrusion engaged between the protrusions and provided on an upper portion of the cover groove, and a circular groove recessed inward to contact the circular protrusion after the first cover protrusion. Wiring duct, characterized in that for distributing the force applied from the outside by the combination of the circular groove and the circular protrusion. The method of claim 4, wherein And a fixture insertion protrusion protruding perpendicularly to the lower side of the wiring duct cover and having an end portion bent horizontally so that the wiring fixture fixture is fitted. In the wiring duct cover which is coupled to the upper side of the wiring duct body in which the lower side and both sides are closed to accommodate the electric wire, A cover groove having a plate shape, both ends being vertically bent and provided at the end and inserted into the insertion groove of the wiring duct main body, and a cover groove into which the support protrusion of the wiring duct main body is inserted above the second cover protrusion. And a first cover protrusion engaged between the support protrusion of the wiring duct main body and the circular protrusions at both upper ends, and a circular groove recessed inward so as to contact the circular protrusion after the first cover protrusion. Wiring duct cover, characterized in that configured by.

Images