KR20050059876A - Multipurpose duct to be usable as cable tray, raceway and cable duct and method for manufacturing the same - Google Patents

Abstract

The present invention relates to multipurpose ducts that can be used as cable tray systems, raceway systems, and cable duct systems.

Multi-purpose ducts for forming a cable tray system or a raceway system (cable duct system) for supporting cables by combining straight sections and other parts are bent in a roughly b-shape to form a fastening at both ends of the steel sheet. The upper cover is bent in a c-shape as a whole, and the lower main body is bent in an S-shape to correspond to a fastening portion of the upper cover formed in the upper cover at both ends of the steel plate, and bent in a c-shape again.

Description

MULTIPURPOSE DUCT TO BE USABLE AS CABLE TRAY, RACEWAY AND CABLE DUCT AND METHOD FOR MANUFACTURING THE SAME}

The present invention relates to multipurpose ducts that can be used as cable tray systems, raceway systems, and cable duct systems. In more detail, the present invention has a structure of a multi-purpose duct and a method of manufacturing the multi-purpose duct having a fastening part that can be fastened to the upper cover and the lower body, respectively, constituting a multi-purpose duct compatible with cable tray systems, raceways and cable duct systems. It is about.

Generally, the cable tray system 100 as shown in FIG. 1A is a metal cable tray section and other accessory parts, such as a straight section (1), a straight channel section (2), and a channel horizontal fitting ( 3), vertical elbow (4), horizontal elbow (5), horizontal tee (6), horizontal cross (7), horizontal Y branch (8), reducer (9), joint connector (10), channel connector (11) ), A blended end plate 12, end dropout 13, etc. are brought together to create a structure that supports the wire cable.

Such a cable tray system 100 is generally installed in suspension on a ceiling of a building, and performs a function of supporting wire cables and the like on each floor.

The cable tray system 100 shown in FIG. 1A may be embodied in a ladder shape as shown in FIG. 1B, and the channel type as shown in FIG. 1C on the other hand. Or by trough type or a combination thereof.

FIG. 1B shows the basic straight section 1 constituting the ladder cable tray system 100. In Fig. 1A, the straight section 1 is formed by using a roller forming machine to form a hot coil steel plate, a galvanized steel plate, and a stainless steel plate having a thickness of 1 to 5 mm. The longitudinal axis supporting angle tube 23 is bonded to the horizontal axis supporting angle tube 21 molded by welding by welding or the like. This straight section 1 is connected to the various components described above in order to configure the cable tray system 100 as shown in Fig. 1A. The various components here include straight channel sections (2), channel horizontal fittings (3), vertical elbows (4), horizontal elbows (5), horizontal tees (6), horizontal crosses (7), horizontal Y branches (8), It refers to the reducer 9, the joint connector 10, the channel connector 11, the blend end plate 12, the end dropout 13, etc., and the basic shape is formed in a ladder shape such as a straight section. At the end of the straight section 1, a hole 25 is formed in advance for coupling the bolt nut with other components.

1C shows a basic straight section 1 constituting a trough or ducted cable tray system 100. Trough or ducted cable tray system 100 is formed in the form of a rectangular box-shaped tube, which consists of a top plate 33, the main body tube 31, the clamp 39 as shown in Figure 1c. The body shell 31 has a straight channel section 2, channel horizontal fitting 3, vertical elbow 4, including a side 35 and a top wing 37, as shown in FIG. 1E, 1G or 1H. , Horizontal elbow (5), horizontal tee (6), horizontal cross (7), horizontal Y branch (8), reducer (9), joint connector (10), channel connector (11), blend end plate (12) End dropouts 13 are each formed by bending inwards by 90 °. The shape of the main body tube 31 may be molded in the form of FIG. 1E, FIG. 1G, and FIG. 1H, respectively.

In FIG. 1C, the sizes of the body tube 31 and the top plate 33 are manufactured to exactly match each other upon contact with each other. Since the upper plate 33 is simply placed on the main body tube 31 and is not physically fastened, in order to firmly fix the upper plate 31 and the main body tube 31, a clamp as shown in FIG. 1F is provided. Using 39, it is fixed as shown in FIG. 1B. The clamp 39 is formed in a pair and can be fastened by a fastening mechanism (not shown) such as a bolt nut or the like.

FIG. 2A is a schematic view of the entire raceway (cable duct, hereinafter simply referred to as raceway) system 200, and FIG. 2B illustrates a raceway system (basically constituting such a raceway system 200). An exploded perspective view showing a straight section 250 for 200, and FIG. 2C is a cross-sectional view showing a cut section of the connector 254 for connecting the straight sections 250 and the straight section 250 for the raceway system 200. FIG. to be.

Here, the cable tray system 100 shown in FIG. 1 is a system in which a relatively thick coaxial cable or the like is mostly supported at an invisible part of the ceiling, whereas the cable tray system 100 is installed at a visible part such as a ceiling or a wall of the building of FIG. A relatively thin wire, etc. within 200) and, if necessary, may be combined with an outlet box or lighting fixture in a suitable location.

The raceway system 200 is connected to a junction box (220), a outlet box (230) at a required position, and a lighting fixture (240) installed at a predetermined position at a cable branch or crossing portion. Configure the system.

This raceway system 200 basically consists of a straight section 250 for the raceway system 200 in the shape as shown in FIG. 2B. The straight section 250 for the raceway system 200 consists of a lower body 251, a top cover 251 and a clamp 254.

In FIG. 2B, the lower main body 251 is formed to be able to insert and fix the c-shaped connector 253 by bending the steel plate in a c-shape and bending both ends 255 inward. Therefore, the end portion 255 is bent in a U-shape and a connector described later is inserted. The cover 252 has a shape and size for covering the opening of the lower body 251.

Here, by placing the cover 252 on the lower body 251, the straight section 250 for the raceway system 200 as a whole is made of a trough or square tube shape, the lower body 251 and the cover 252 In order to fasten the), the belt-shaped clamp is folded in a c-shape, and both ends are bent inward 90 degrees inwardly. Of course, clamps of the type as shown in FIG. 1F may also be used.

The straight sections and parts thereof constituting the cable tray system 100 and the raceway system 200 shown in Figs. 1 and 2 are generally made of a galvanized steel sheet (galvanized steel sheet) to prevent corrosion or the like. It is made of hot rolled iron plate or the like and plated later.

As described above, the cable tray system 100 and the raceway system 200

First, the straight section structure of the above-mentioned system is simple and requires unnecessary parts such as clamps, and many of these parts require a lot of time for installation and maintenance. There is this.

Second, since the connector constituting the system is made of a structure having no elastic force, such as in a fastening structure such as a bolt / nut or a raceway system, there is a problem that it takes a long time for installation and maintenance.

Third, since the components constituting the above-described system are sharp, there are many problems in which an operator injuries or damages the cable coating during installation and maintenance work, causing fire.

Fourth, by forming a zinc coated steel sheet or a hot rolled steel sheet by a roller forming machine, not only the appearance is not clean but also there are problems such as environmental pollution due to plating or the like.

It is an object of the present invention to improve the structure of the straight section that can be shared with the cable tray system 100 and the raceway system described above, thereby eliminating unnecessary parts, such as clamps, as well as installation and The purpose is to simplify maintenance.

Another object of the present invention is to facilitate the installation and maintenance by forming a self-locking portion having elastic force in the cover and a portion of the lower body constituting a straight section that can be shared with the cable tray system 100 and the raceway system described above. To provide one cable tray system and a raceway system.

It is still another object of the present invention to manufacture the components constituting the cable tray system and the raceway system in stainless steel, thereby improving the appearance of the product and not causing environmental pollution due to plating or the like. And to provide a raceway system.

It is another object of the present invention to prevent cable damage and safety accidents of workers, and to provide a cable tray system and a raceway system in which the load strength of the cable tray system and the raceway system is improved by 1.5 times or more compared to conventional products. It is to.

A multi-purpose duct for constructing a cable tray system or a raceway system (cable duct system) for supporting a cable by combining a straight section and other components according to an embodiment of the present invention,

An upper cover which is bent in an approximately b-shape to form a fastening portion at both ends of the steel sheet, and is bent again in a c-shape as a whole;

Both ends of the steel plate is bent in an S shape to correspond to the fastening portion of the upper cover formed in the upper cover, and it is made of a lower body bent in a C shape again.

Multi-purpose duct according to an embodiment of the present invention, characterized in that the convex protrusions are formed on both sides of the bottom portion of the lower body.

Multi-purpose duct according to an embodiment of the present invention is characterized in that it is made of a stainless steel sheet, a hot rolled steel sheet, or a zinc coated steel sheet.

A multi-purpose duct for constructing a cable tray system or a raceway system (cable duct system) for supporting a cable by combining a straight section and other components according to an embodiment of the present invention,

An upper cover bent in an approximately b-shape to form a fastening portion at both ends of the steel plate, and bent back to a c-shape as a whole;

A lower main body bent in an S shape so as to correspond to a fastening portion of the upper cover formed in the upper cover at both ends of the steel plate, and bent in a C shape again;

The upper end is caught by the upper opening protrusion of the upper fastening part made of the S-shape of the lower main body, and is formed to almost coincide with the side of the lower main body as a whole, the middle part is in contact with the side of the lower main body 310, and the lower end 333 is connected to the lower main body ( It is caught on the bottom of the 310, and the lower end 333 is made of a connector formed to be caught by the protrusion 315 formed on the bottom surface of the lower body 310 even when sliding under the force.

Method for producing a multi-purpose duct according to an embodiment of the present invention,

Manufacturing a top cover which is bent in an approximately b shape to form fastening portions at both ends of the steel sheet by a roller forming machine, and is bent back to a c shape as a whole;

Manufacturing a lower main body bent in an S shape to correspond to a fastening portion of the upper cover formed on the upper cover at both ends of the steel sheet by a roller forming machine, and then bent in a C shape; and

The upper end is caught by the upper opening protrusion of the upper fastening part made of the S-shape of the lower main body, and is formed to almost coincide with the side of the lower main body as a whole, the middle part is in contact with the side of the lower main body 310, and the lower end 333 is connected to the lower main body ( It is caught on the bottom of the 310, even if the lower end 333 is slipped under the force is made of a step of manufacturing a connector formed to be caught by the protrusion 315 formed on the bottom surface of the lower body (310).

Method for producing a multi-purpose duct according to an embodiment of the present invention,

The connector is used to connect the strat section and the strat section of the multi-purpose duct, or to connect the strat section and other parts.

(Example)

An embodiment of the present invention will be described in detail with reference to FIGS. 3A to 3D.

3A is a perspective view showing the structure of a straight section constituting a cable tray, a raceway, and a multi-purpose duct that can be shared by a cable duct according to an embodiment of the present invention, and FIG. 3B is a basic view of the straight section shown in FIG. 3A. It is an exploded perspective view showing the structure, Figure 3c is a view showing the connection between the straight section shown in Figure 3a and other components, Figure 3d is a cross-sectional view taken along the cut line AA in the Figure shown in Figure 3c. to be.

3A to 3D, which is an embodiment of the present invention, will be described on the premise that they are basic components for constituting the cable tray system and the raceway system (cable duct system) shown in FIGS. 1A and 2A. . Therefore, it is well known that the cable system and the raceway system 200 may be configured by manufacturing various components by applying the structure of the straight section 300 which is a basic component.

The straight section 300, which is a basic configuration of the multi-purpose duct according to the present invention, consists of a lower body 310 and an upper cover 320 as shown in Figure 3a. The lower main body 310 of the straight section 300 is bent in a c-shape, as shown in FIGS. 1b and 2b, and the upper cover 320 is fastened corresponding to the lower main body 310. It is bent in a c-shape in the opposite direction.

The lower main body 310 and the upper cover 320 each form a hot rolled steel sheet, a galvanized steel sheet, and a stainless steel sheet by a roller molding machine (not shown). It is important here that in a roller forming machine, the elongated steel sheet is gradually folded by the forming roller of 18 to 20 stages, so that the roller mold of the roller forming machine is a roller for manufacturing the upper cover 320 in advance as shown in FIG. 3B. It is well known that each of the roller molds for manufacturing the mold and the lower body 310 should be provided.

In the case of manufacturing the lower main body 310, the hot rolled steel sheet, the galvanized steel sheet, or the stainless steel sheet inserted into the roller forming machine (not shown) first bends the upper portion of the upper part of the S-shape first at both corners of the steel sheet, and The circular shape of the lower end of the S-shape is then bent in the opposite direction to form the S-shaped fastening part 313. The side of the lower body 310 is then formed, followed by the bottom surface. The process of forming the lower body 310 is continuously performed by a roller forming machine of 18 to 20 steps.

On the bottom surface of the lower main body 310, protrusions 315 are formed on both sides of the bottom to prevent slippage of the lower end of the connector 330, which will be described later, and increase load strength.

The upper cover 320 is bent in a c-shape in the downward direction, the end of the side of the upper cover 320 is bent in a substantially b-shaped to form a fastening portion 317 of the upper cover 320. The fastening part 317 of the upper cover 320 is fastened and fixed by applying a slight force to the outside of the S-shaped fastening part 313 of the lower main body 310.

Here, it is important that the fastening part 317 of the upper cover 320 and the S-shaped fastening part 313 of the lower main body 310 have a certain degree of elasticity. Because the multi-purpose duct system according to an embodiment of the present invention, as shown in Figure 1a and 2a, the upper cover is fastened to each other rather than simply placed on the lower body, to secure the upper cover and the lower body This is because the clamping means is unnecessary, and the fastening part 3117 of the upper cover 320 and the fastening part 313 of the lower main body 310 are fastened and fixed to each other. Thus, when constituted by a straight section 300 of the type shown in Fig. 3a, it can be seen that a fastening means such as a clamp as in the prior art is unnecessary, and the cable tray system having such a structure or a raceway For systems, the time required for installation and maintenance can be dramatically reduced.

Hereinafter, the connector 330 for coupling between the straight section and the straight section or other components used in the cable tray system and the raceway system will be briefly described with reference to FIG. 3B.

The connector 330 has a rectangular plate shape as a whole. The upper portion 331 of the connector 330 is bent in an S-shape to correspond to the fastening portion 313 of the lower body 310, the side is preferably slightly bent inward to withstand tension or bending force. The lower portion 333 of the connector 330 is formed in a sawtooth shape so as to be easily fastened to the lower body 310.

These multi-purpose ducts form various forms of perforations 335 for the use of screws or bolt nuts for lower body 310 and connector 330 when vibrational locations or need to be more firmly fixed. It is desirable to. In this case, it is easy to drill to the side of the lower body 310 by a drill or other drilling means. However, since it is very difficult to drill the connector and the lower main body 310 at the same time, it is preferable to form a drilling hole in the lower portion of the connector in advance.

Figure 3c is a view showing a fixed connection between the straight section 300 and the straight section 300 to configure a multi-purpose duct system according to the present invention. As shown in FIG. 1, the fitting parts 313 and 317 are formed on the upper cover 320 and the lower body 310 as shown in FIG. 3C, and the horizontal fitting, vertical elbow, horizontal elbow, horizontal tee, horizontal cross, and horizontal Y are shown in FIG. 1. By manufacturing branches, reducers, joint connectors, channel connectors, blend end plates, end dropouts, etc., and connecting these parts using connectors 330, cable tray systems and raceway systems can be easily implemented. .

3D is a cross-sectional view of the connection of the straight section of FIG. 3B taken along the line A-A.

3D, the fastening states of the fastening portions 313 and 317 of the upper cover 320 and the lower main body 310 and the connector 330 can be easily understood. The upper end portion 331 of the connector 330 is caught by the upper opening protrusion 319 of the upper fastening portion 313 made of the S-shape of the lower main body 310, and is formed to almost coincide with the side of the lower main body 310 as a whole. The middle portion of the connector 330 is in contact with the side of the lower body 310, the lower end 333 is caught on the bottom of the lower body 310 and even if the lower end 333 is sliding under the force of the lower body 310 It is formed to be caught by the protrusion 315 formed on the bottom surface.

  The cable tray system or the raceway system having such a structure does not require a component such as a clamp as the fastening portion is formed in the upper cover and the lower body. Therefore, the installation work can be effectively performed because the rapid work is performed during the installation and maintenance of such a cable tray system or raceway system.

(Production method)

Hereinafter, a method of manufacturing a multipurpose duct according to an embodiment of the present invention will be described in detail with reference to FIG. 4.

Inserting a hot rolled steel sheet, a galvanized steel sheet, a stainless steel sheet, or the like into a roller molding machine to form a b-shaped fastening portion 317 at both ends of the steel sheet;

Forming a top cover by bending a steel plate having a b-shaped fastening part 317 formed at both ends thereof in a c-shape,

Inserting a hot rolled steel sheet, a galvanized steel sheet, a stainless steel sheet, or the like into a roll forming machine to form an S-shaped fastening portion 313 at both ends of the opening of the lower body side;

Bending the steel plate having the approximately S-shaped fastening portion 313 formed at both ends thereof in a c-shape to form a lower main body, and

And cutting the lower body and the upper cover into predetermined lengths, respectively.

When configuring a cable tray system or a raceway using the multi-purpose duct according to the embodiment of the present invention, by forming a fastening portion in the lower body and the upper cover constituting the straight section, unnecessary parts, for example, parts such as clamps Not only is it necessary, it is also easy to install and maintain.

In the case of configuring a cable tray system or a raceway using the multi-purpose duct according to the embodiment of the present invention, it is also possible to install and maintain the cover and the self-fastening portion having elastic force in a portion of the lower body, which constitutes a straight section. Easy cable tray system and raceway system can be provided.

In the case of configuring the cable tray system or the raceway using the multi-purpose duct according to the embodiment of the present invention, by manufacturing the components constituting the cable tray system and the raceway system in stainless steel, not only improves the appearance of the product In addition, it is possible to provide a cable tray system and a raceway system that does not cause environmental pollution due to plating or the like.

In the above-described embodiment of the present invention, only the straight section commonly used in the cable tray system or the raceway system (table duct system) has been described, but this is not limited to this, but the cable tray system or the raceway system (table duct) System), for example, straight channel section (2), channel horizontal fitting (3), vertical elbow (4), horizontal elbow (5), horizontal tee (6), horizontal cross (7), horizontal Y It can be easily understood that it is applied to the branch 8, reducer 9, joint connector 10, channel connector 11, blend end plate 12, end dropout 13 and the like.

1A is a diagram showing an overall system configuration of a cable tray system;

FIG. 1B is a ladder shape constituting the cable tray system shown in FIG. 1A

Perspective view schematically showing a straight section,

FIG. 1C is a perspective view schematically showing a trough or trough straight section for implementing the cable tray system shown in FIG. 1A in another form; FIG.

FIG. 1D is a perspective view of the top cover used for the trough straight section shown in FIG. 1C;

1E is a perspective view showing various types of lower bodies used in the trough straight section shown in FIG. 1C;

Figure 1f is a perspective view showing a clamp for fixing the trough straight section shown in Figure 1c,

Figure 2a is a diagram showing the overall system configuration of the raceway system,

Figure 2b is a perspective view schematically showing a straight section constituting the raceway system shown in Figure 2a,

2C is a cross-sectional view of the straight section shown in FIG. 2B taken along the line B-B;

3A is an exploded perspective view illustrating a straight section constituting the multipurpose duct according to an embodiment of the present invention;

Figure 3b is a front view showing the fastening state of the multi-purpose duct shown in Figure 3a,

3C is a perspective view illustratively showing a connector for interconnecting the straight sections of the multipurpose duct shown in FIG. 3A;

3D is a cross-sectional view of the straight section illustrated in FIG. 3C taken along the line A-A.

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

100: cable tray system 200: raceway system

300: multi-purpose duct 313: fastening portion of the lower body

315: protrusion formed on the bottom surface of the lower body

317: fastening portion of the upper cover 310: lower body

320: top cover 330: connector

Claims (9)

In a multi-purpose duct for forming a cable tray system or a raceway system (cable duct system) for supporting a cable by combining a straight section and other parts, An upper cover which is bent in an approximately b-shape to form a fastening portion at both ends of the steel sheet, and is bent again in a c-shape as a whole; Lower body bent in an S shape to correspond to the fastening portion of the upper cover formed on the upper cover at both ends of the steel plate, and then bent in a C shape. Multipurpose duct, characterized in that consisting of. 2. The multipurpose duct of claim 1, wherein convex protrusions are formed on both sides of the bottom portion of the lower body. Wherein said multipurpose duct is made of stainless steel. The multi-purpose duct is characterized in that the multi-purpose duct is made of a hot rolled steel sheet. The multi-purpose duct is characterized in that the multi-purpose duct is made of a galvanized steel sheet. In a multi-purpose duct for forming a cable tray system or a raceway system (cable duct system) for supporting a cable by combining a straight section and other parts, An upper cover bent in an approximately b-shape to form a fastening portion at both ends of the steel plate, and bent back to a c-shape as a whole; A lower main body bent in an S shape so as to correspond to a fastening portion of the upper cover formed in the upper cover at both ends of the steel plate, and bent in a C shape again; The upper end is caught by the upper opening protrusion of the upper fastening part made of the S-shape of the lower main body, and is formed to almost coincide with the side of the lower main body as a whole. The connector is formed on the bottom of the 310, the connector formed to be caught by the protrusion 315 formed on the bottom surface of the lower main body 310 even when the lower end 333 is sliding under the force Multipurpose duct, characterized in that consisting of. In the method for producing a multi-purpose duct for forming a cable tray system or a raceway system (cable duct system) for supporting a cable by combining a straight section and other parts, Manufacturing a top cover which is bent in an approximately b shape to form fastening portions at both ends of the steel sheet by a roller forming machine, and is bent back to a c shape as a whole; Manufacturing a lower main body bent in an S shape to correspond to a fastening portion of the upper cover formed on the upper cover at both ends of the steel sheet by a roller forming machine, and then bent in a C shape; and The upper end is caught by the upper opening protrusion of the upper fastening part made of the S-shape of the lower main body, and is formed to almost coincide with the side of the lower main body as a whole. Manufacturing a connector which is caught on the bottom of the 310 and is caught on the protrusion 315 formed on the bottom surface of the lower main body 310 even when the lower end 333 slides under the force. Method for producing a multi-purpose duct, characterized in that consisting of. 8. The method of claim 7, wherein the connector connects the strut section and the strut section of the multipurpose duct. 8. A method according to claim 7, wherein the connector is used to connect the strut section of the multipurpose duct to another part.