KR101970595B1 - Non―bolt type cable tray of one―touch assebly - Google Patents

Abstract

A cable tray according to an embodiment includes a plurality of side rails, and includes, as a means for connecting the side rails, an inner fastening portion coupled to the inside of the side rail and an outer fastening portion coupled to the outside of the side rail. The inner fastening portion includes an inner body, and a plurality of connectors formed to protrude on the inner body. The outer fastening portion includes a first fastening link and a second fastening link fastened to be able to rotate. The first fastening link and the second fastening link respectively include overlapping bodies in which fixing holes are formed, and fastening extension portions which are formed to extend from the overlapping bodies. The fastening extension portions of the first and second fastening links are formed in a shape capable of being inserted into the connector. When the distance between the fastening extension portions increases, the coupling between the fastening extension portions and the connectors is performed. When the distance between the fastening extension portions decreases, the decoupling between the fastening extension portions and the connectors is performed. Thus, the time required for coupling cable trays is significantly reduced.

Description

[0001] The present invention relates to a non-bolt type cable tray of one-touch assembly type,

The present invention relates to an apparatus for coupling a cable tray, and more particularly, to a coupling apparatus capable of remarkably reducing the time required for coupling the cable trays while strengthening the connection of the cable trays.

Generally, a cable is installed inside a ceiling, a floor, or a wall to supply power or fluid to an offshore structure such as a factory or a plant or an offshore structure such as a ship.

The cable tray is a wire conduit made of metal or the like to support a plurality of cables arranged on the ceiling, the floor, and the like.

The cable tray connects a plurality of tray units with a connecting device such as a joint, with a tray unit having a predetermined length as a unit. However, in such a bolt type cable tray connecting apparatuses, a pair of tray units have a structure in which a cover plate is attached to an adjacent end portion and a hole is pierced and connected by bolts. In order to withstand the load of the cable tray, . Therefore, when a large building is constructed, a large number of cable trays are connected, which makes it difficult to tighten a plurality of bolts in a narrow space.

(Patent Document 1) KR10-1587590 B

Patent Document 1 discloses a structure using a connector which is in close contact with an inner surface of a side rail so that a grid link protrudes through a side rail serving as a tray unit and a lock bar formed so as to be vertically fit into a grid link protruding from the connector have.

That is, in this structure, the plurality of side rails are fixed by the side rails extending in the transverse direction and the lock bars fastened to the connector in the direction perpendicular to the longitudinal direction of the side rails.

However, since the lock bar is fastened in the direction perpendicular to the direction in which the side rails extend, the fastening force / fastening force in the longitudinal direction of the side rail (cable tray) and in the direction perpendicular thereto is concentrated, There is a problem that the coupling force is deteriorated with respect to the direction not perpendicular to the direction or the direction of rotation.

It is an object of the present invention to provide a cable tray capable of improving the strength while reducing the assembly time and construction time of a conventional cable tray.

The cable tray according to the present embodiment includes a plurality of side rails and means for connecting the side rails, and includes an inner fastening portion coupled to the inside of the side rail and an external fastening portion coupled to the outside of the side rail, Wherein the fastening portion includes an inner body and a plurality of connectors formed to protrude on the inner body, wherein the outer fastening portion includes a first fastening link and a second fastening link fastened to be rotatable, Each of the two fastening links includes an overlapping body formed with a fixing hole and a fastening extension formed to extend from the overlapping body, and fastening extensions of the first fastening link and the second fastening link can be inserted into the connector And the distance between the fastening projections is increased, The combination of the connector comprises, combined with the extended fastening the fastening extensions by that which is closer spacing between the portions and the connector is released.

According to the cable tray of the present invention, since the inner fastening portion and the outer fastening portion can be joined by a simple operation, there is an advantage that the cable tray assembly and the construction time are remarkably reduced.

Further, in the present invention, since the fastening link of the outer fastening portion is engaged with the connector of the inner fastening portion by rotation, and the fastening link and the connectors can be installed in various directions and angles, It has a merit that the durability which can be tolerated even if it occurs in the direction of the direction is greatly improved.

1 is a view showing a state in which a coupling means is fastened to a cable tray of the present invention.
2 is a view for explaining the engagement relationship between the inner fastening portion and the side rail according to the present invention.
3 is a view showing a detailed configuration of an outer fastening portion of the present invention.
4 is a view showing a case where the fastening is released when the outer fastening portion of the present invention is fastened to the outer peripheral surface of the side rail.
FIG. 5 is a view showing a process of inserting and fixing the outer fastening part into the connector inside the cable tray according to the present embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix " means " and " part " for constituent elements used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

1 is a view showing a state in which a coupling means is fastened to a cable tray of the present invention.

1, the cable tray of the present embodiment includes a plurality of side rails 1, 2, 3, and 4, an inner coupling portion 100 as a means for connecting the side rails, and an outer coupling portion 200 .

The inner fastening part 100 is disposed on the inner circumferential surface of the side rail and the outer fastening part 200 is disposed on the outer circumferential surface of the side rail and is exposed through the hole formed in the side rail. Connector. That is, through the coupling between the inner fastening part 100 and the outer fastening part 200, the adjacent side rails are connected and coupled.

These structures can be made of hot-dip galvanized steel sheets or stainless steel materials. In the high-humidity environment of the building, the cross-sectional areas of the parts should be excellent in corrosion resistance. For this purpose, zinc, magnesium, and aluminum Alloy-coated steel sheet.

Since the length and the route of cables installed in a space such as a building or a tunnel are not constant, the cable tray is produced by being divided into unit members having a predetermined size such as a plurality of side rails 1, 2, 3, , The unit members are connected to each other according to the length or route of the cable.

The cable tray must be made to have a rigidity that can withstand the load of the cable above all. If the entire cable tray is made in the form of a flat plate, not only a large amount of material is consumed in making the cable tray, It is difficult to adhere to the ceiling, which is undesirable. Accordingly, in the present invention, both side walls of the cable tray are formed of a plurality of side rails (1, 2, 3, 4) in the form of a rectangular plate, and the bottoms of the cable trays are spaced apart from each other by a predetermined distance, And a rung 10 for connection.

The inner fastening part 100 and the outer fastening part 200 for interconnecting the plurality of side rails according to the present invention will be described in detail with reference to the drawings. In particular, the present invention is characterized in that, when the outer fastening portion is coupled to the connector of the inner fastening portion, the operator can easily engage the fastening portions by simply lowering the body which is the center portion of the outer fastening portion.

FIG. 2 is a view for explaining a coupling relation between an inner fastening part and a side rail according to the present invention, and FIG. 3 is a view showing a detailed configuration of an outer fastening part of the present invention.

Hereinafter, a structure for joining the first side rail 1 and the second side rail 2 shown in FIG. 1 using the inner fastening portion and the external fastening portion will be described in detail. The third side rail 3 And the fourth side rail 4 may be combined in the same manner.

2 and 3, at least one insertion hole 11, 12, 13 is formed in each of the side rails 1, 2. The number, formation position and size of these insertion holes are formed so as to be equally symmetrical to the first side rail 1 and the second side rail 2. In the field where the cable tray is assembled, since a plurality of side rails are manufactured by using the equipment for bending a steel sheet or forming a hole in a steel sheet, the size and number of the holes to be formed, And the like are formed to be equal to each other.

On the inner side surfaces of the first and second side rails 1 and 2, an inner fastening portion 100 of the present invention is formed.

In a state where the ends of the first side rail 1 and the second side rail 2 are in contact with each other, a part of the inside fastening portion 100 is in contact with the inner side surface of the first side rail 1, And is disposed so as to be in contact with the inner side surface of the second side rail 2.

More precisely, the connector fastening portion 100 is provided with a connector through-hole 11 formed in the first side rail 1 and a connector through-hole 21 formed in the second side rail 2, The inner fastening portion 100 is positioned such that the connector 111 and the second connector 112 pass through.

The spacing of at least one pair of connectors formed in the inner fastening portion 100 should be designed as a distance between the connector through holes when the side rails are disposed adjacent to each other.

The inner fastening part 100 includes an inner body 102 having a folded surface 110 when the body is formed and a connector formed to protrude from the inner body 102 by a predetermined height to pass through the through hole of the side rail 111, 112).

Particularly, the connectors 111 and 112 have a height allowing a part of the outer fastening part 200 to pass through the connector through holes 11 and 21 of the side rail. That is, the connector is protruded by a predetermined thickness from the inner body 102 so that the connector is spaced from the half of the outer body so that the fastening extension portions 211 and 221 (see FIG. 3) Pipe (half-pipe) shape.

That is, the ends of the respective connectors are formed so as to be in contact with the inner body 102, and a portion except the portion contacting the inner body 102 is spaced apart from the surface of the inner body 102 by a predetermined distance, Thereby forming a space into which the member of the first embodiment can be inserted.

4 is a view showing a case where the fastening is released when the outer fastening portion of the present invention is fastened to the outer peripheral surface of the side rail.

3, the outer fastening part 200 of the embodiment is formed of a pair of fastening link parts 210 and 220 having symmetrical shapes, And is inserted and coupled to the connectors 111 and 112 of the inner fastening portion using the rotation of the fastening link portion and the repulsive force of the rotation thereof.

In detail, the first fastening link 210 and the second fastening link 220 are formed in a mirror symmetrical shape and each have an overlapping body 212 and 222 formed with fixing holes 213, And extension portions 211 and 221.

A fixing hole 213 through which the engaging member 250 can pass is formed in the overlapping body 212 of the first fastening link 210 and the overlapping body 222 of the second fastening link 220.

The fastening extension portions 211 and 221 of the fastening links 210 and 220 are fixed inside the connectors 111 and 112 because the fastening protrusions 231 and 232 protruded from the surface of the fastening protrusions 211 and 221 by the predetermined thickness are inserted into the connectors 111 and 112, And tightly fixed to the projections 111a and 112a. That is, the connectors 111 and 112 formed in the inner fastening portion 100 are formed with the inner pressing projections 111a and 112a protruding toward the inner body 102, and the fastening extension portions 211 and 221 of the outer fastening portions are formed The engaging projections 231 and 232 are closely contacted and fixed by the inner pressing projections 111a and 112a. Therefore, when the fastening extension portions 211 and 221 are completely inserted, their positions are fixed by close contact and pressing between the fastening protrusions and the inner pressing protrusions.

In another embodiment, the spaced angles between the respective fastening links (fastening extensions) may be designed to be maintained through an elastic member, such as a spring, between the overlapping body and the fastening member 250. For example, as shown in FIG. 4, when the distance or angle between the first fastening extension portion 211 and the second fastening extension portion 221 is inserted into the connector of the inner fastening portion 100, That is, the elastic member may be configured such that the fastening extensions are kept at the maximum angle. The elastic member may be a spring formed in the fixing hole 213 and the engaging member 250 which serve as rotation centers of the first and second fastening links 210 and 220, The fastening links of the fastening portion 200 have a tendency to return to a specific position.

The first fastening extension part 211 of the outer fastening part 200 and the second fastening extension part 211 of the second fastening part 200 are inserted into and fixed to the connectors 111 and 1112 of the inner fastening part 100, The extension portion 221 is held in position by the elastic member inside the overlapping body and is prevented from rotating around the engagement member 250. [

4, when the outer fastening part 200 is inserted into and coupled to the connector of the inner fastening part 100, as shown in FIG. 4, the overlapping of the first fastening links 210 The operation protrusion 214 protruding and formed on the body 212 may be pushed upward.

That is, when the outer fastening part 200 is moved with a force larger than an elastic force to maintain the distance between the first fastening extension part 211 and the second fastening extension part 221, the first fastening extension part 211 And the second fastening extension 221 are rotated in a direction approaching each other, the coupling between the outer fastening part and the inner fastening part can be released.

On the other hand, in order that the fastening extension portions 211 and 221 of the fastening links are inserted into the connectors 111 and 112 of the fastening portion 100, The locking protrusions 231 and 232 can be formed. The degree of protrusion of the locking protrusions 231 and 232 is determined in consideration of the thickness of the locking protrusions 211 and 221 and the height of the connectors 111 and 112. The protrusions 231 and 232 are formed on the connectors 111 and 112, The inner pressing protrusions 111a and 112a make the locking protrusions 231 and 232 more closely contact with each other.

The connectors 111 and 112 of the inner fastening part 100 are passed through the connector through holes 11 and 21 of the side rail and then are fastened to the outside through the space formed by the projected shape of the connectors 111 and 112 The fastening protrusions 211 and 221 of the unit 200 are positioned and the fastening protrusions 211 and 221 are inserted into the connectors 111 and 112 as the fastening protrusions are spaced apart when the fastening protrusions 211 and 221 are pressed downward. do.

The manipulation protrusion 214 protruding to a predetermined thickness is formed on the superimposing body 212 of the first fastening link 210 so that the operator can easily operate the rotation of the fastening extensions 211 and 221. Therefore, the operator can press the operation protrusion 214 downward or push up the operation protrusion 214 to easily operate the rotation of the lock extension parts 211 and 221. [

FIG. 5 is a view showing a process of inserting and fixing the outer fastening part into the connector inside the cable tray according to the present embodiment.

The connectors 111 and 112 are formed on the inner body 102 of the inner fastening portion 100 of the present embodiment such that the connectors 111 and 112 are spaced apart from the inner body 102 by a predetermined height and a plurality of guide protrusions 121 and 122 are formed.

For example, the four guide projections may be formed at positions symmetrical to each other, vertically, horizontally, and horizontally, and may be formed of semicircular protrusions as shown or may be formed of protrusions of a circle or an ellipse.

Even if the guide protrusions 121, 122, 123, and 124 have a semicircular or circular shape, the bent portions are directed to positions where the engaging extension portions 211 and 221 of the outer engaging portion are in contact with each other.

Since the guide protrusions are formed at symmetrical positions, it is necessary to closely contact the inner fastening portions 100 with respect to the upper and lower sides of the inner fastening portions none.

5, the first and third guide protrusions 121 and 123 disposed on the upper side are referred to as upper guide protrusions, and the second and fourth guide protrusions 122 and 124 disposed on the relatively lower side are referred to as a lower guide, It is called a projection.

The guide protrusions 121 and 123 come into contact with the engaging extensions of the outer engaging portion while the engaging extended portions are engaged with the inner side of the connectors 111 and 112 ≪ / RTI >

In order to prevent the user from excessively pushing the outer coupling part 200 downwardly, the lower guide projections 122 and 124 are inserted into the connectors 111 and 112, respectively, when the coupling extension parts of the outer coupling part 200 are inserted into the connectors 111 and 112, And the rest of the movement is restricted.

Therefore, the four guide protrusions are disposed symmetrically with respect to each other in the upper, lower, left, and right directions to easily engage the inner fastening portions with the side rails, serve as guides when the fastening extension portions of the outer fastening portions are inserted into the connector, And restricts excessive underside movement of the vehicle.

Therefore, the operator can press the outer fastening portion downward to insert the fastening extension portion into the connector until it comes into contact with the lower guide projection, so that the work is also advantageous.

As described above, in the case of the present invention, the inner fastening portion and the outer fastening portion can be easily fixed and coupled, and in particular, the side rails can be easily connected by the fastening links configured to constitute the outer fastening portion .

100: Inner fastening portion
102: Body
110: Bending face
111, 112: connector
200: outer fastening part
210, 210: first and second fastening links
211, 221: first and second fastening extension parts
212, 222: first and second overlapping bodies
213: Fixing hole
214: Operation protrusion
231, 232:

Claims (5)

A plurality of side rails,
And means for connecting the side rails, wherein the means for connecting the side rails includes an inner fastening portion coupled to the inside of the side rail, and an external fastening portion coupled to the outside of the side rail,
Wherein the inner fastening portion includes an inner body, a plurality of connectors formed to protrude from the inner body, and a guide protrusion formed to protrude from the inner body to have a bent surface,
Wherein the outer fastening portion includes a first fastening link and a second fastening link that are coupled to be rotatable,
Wherein each of the first fastening link and the second fastening link includes an overlapping body formed with a fixing hole and a fastening extension formed to extend from the overlapping body,
Wherein the fastening extension portions of the first and second fastening links have a shape that can be inserted into the connector,
The coupling protrusions are engaged with the connector by a distance between the coupling protrusions, and the distance between the coupling protrusions is reduced, so that the coupling between the coupling protrusions and the connector is released And,
Wherein the first fastening link includes a first overlapping body and a first fastening extension,
The second fastening link including a second overlapping body and a second fastening extension,
Wherein the first superposed body and the second superposed body are each provided with a fixing hole and the first and second superposed bodies are coupled by a coupling member coupled to the fixing hole. The method according to claim 1,
Wherein the first overlapping body is coupled to the second overlapping body and an operation protrusion formed on the upper surface of the first overlapping body to protrude by a predetermined thickness to allow the outer fastening portion to be operated downward or upward, Volt-free cable tray. 3. The method of claim 2,
Wherein the engaging protrusion is formed on the upper surface of the first fastening extension of the first fastening link and the upper surface of the second fastening extension of the second fastening link so as to protrude from the inner circumferential surface of the connector by a predetermined thickness. Bolted cable tray. The method according to claim 1,
Wherein the guide protrusions are formed on the inner body, and each of the guide protrusions is formed at a position symmetrical to the left or right or up and down direction.
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