KR200323020Y1 - A Connector Coupling - Google Patents

Abstract

The present invention relates to a coupling that connects a wiring tube to an indoor wiring junction box where several wiring tubes are combined to branch wires so that wiring work such as electricity and telephone lines can be easily performed during wall concrete pouring work. The present invention relates to a connector coupling having a support wall for preventing the wiring from being disconnected from the junction box due to excessive movement.

The present invention for this purpose, in the coupling for coupling the joint pipe and the wiring pipe coupled to the interconnection box for indoor wiring, several barbs are formed on the inner circumferential surface, protruding in the inlet direction of the wiring pipe and the stepped end formed with an inclined surface at the end An additional feature is formed.

Description

Connector Coupling with Support Wall {A Connector Coupling}

The present invention relates to a coupling for connecting a wiring tube to an indoor wiring junction box where several wiring tubes are coupled to branch the wires so that wiring work such as electricity and telephone lines can be easily performed during wall concrete pouring. The present invention relates to a connector coupling having a support wall formed to prevent the wiring pipe from being detached from the junction box due to external shocks and frequent movements.

During construction work, the junction box for indoor wiring is installed on the wall so that the lighting lamps installed on the ceiling and the wall and the electric wires supplying power to the outlets can be easily wired.

3 illustrates such a conventional indoor wiring junction box, in which several joint pipes 20 are coupled to the junction box 10, and cleanly arranges the wires connected to various wall attachments while protecting the wires from the external environment. The wiring tube 40 is fixedly coupled by the coupling 30.

Coupling 30 is screwed to the fitting pipe 20 is firmly fixed, the wiring pipe 40 is fixedly coupled to the fitting pipe 20 by the coupling (30). Coupling of the wiring conduit 40 and the coupling 30 is made by engaging the pleats 41 formed on the outer circumferential surface of the wiring conduit 40 with the barb 31 protruding from the inner circumferential surface of the coupling 30. This is a structure for the wiring tube 40 to be quickly and simply coupled to the coupling 30, the wiring tube 40 once fitted inside the coupling 30 does not fall unless a large external force is applied.

On the other hand, at the construction site, many laborers work at the same time, and sometimes they inadvertently work on them. At this time, the junction box for indoor wiring is not an exception. In the case of the junction box for indoor wiring, the wiring pipe 40 is widely installed on the ceiling, the floor, and the wall, so that other workers cannot step on it or touch it with other work equipment. .

In general, the junction box 10 is firmly fixed to the attachment surface by a separate fastening bolt and there is no problem. However, the situation is different when the wiring of the electric wire is not formed only in a straight shape but also in a curved shape or when the wiring pipe 40 is bent inadvertently by an operator as mentioned above.

That is, when the wiring tube 40 is bent, the corrugation 41 of the wiring tube 40 to which the wiring tube 40 and the coupling 30 are coupled is narrowed, which causes the barb 31 fitted into the corrugation 41. ), The wiring tube 40 is separated from the coupling 30. As a result, the worker had to rework the wiring work already completed.

The present invention has been devised in view of the above problems, and the support wall which prevents the bending of the wiring pipe and the coupling from the coupling part by the external force as much as possible to prevent the wiring pipe from being separated from the coupling while being bent by the external force. It is an object to provide a formed connector coupling.

1 is an exploded perspective view according to an embodiment of the present invention

2 is a cross-sectional view of the use state according to an embodiment of the present invention

Figure 3 is a cross-sectional view of the use state of the prior art

<Description of Symbols for Major Parts of Drawings>

10: junction box 11: coupling hole

12: opening 13: fixing piece

15, 16: fastener

20: joint pipe 21: circular protrusion

30 coupling 31 barb

35: support

40: wiring tube 41: corrugation

50: blocking member 52, 53: screw portion

The present invention for achieving the above object is in the coupling for coupling the joint pipe and the wiring pipe coupled to the interconnection box for indoor wiring, several barbs are formed on the inner circumferential surface and protruding in the inlet direction of the wiring pipe and having an inclined surface at the end Characterized in that the support is formed with a stepped step.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view according to an embodiment of the present invention, one side of the polygonal junction box 10 is open, the coupling hole 11 at a predetermined interval on the side of the opening 12 ) Is formed.

On the outer circumferential surface of the open portion 12, a fixing piece 13 having a fastening hole 15 is protruded so as to be fixed to the wall by means of a fastening means such as a bolt, and the inner circumferential surface is separated by an open portion 12. The fastening hole 16 is formed to be coupled to the external device.

The coupling hole 11 is coupled to the joint pipe 20 in accordance with the direction of the wire is arranged, or the blocking member 50 for closing the coupling hole 11 is coupled so that foreign matter does not flow into the junction box 10 is coupled. .

On the other hand, one side outer peripheral surface of the joint pipe 20 and the blocking member 50 is formed with a screw portion 52 is screwed with the screw portion 53 formed on the inner peripheral surface of the coupling hole (11).

On the outer circumferential surface of the opposite side of the joint pipe 20 in which the screw portion 52 is formed, a thread is formed so that the coupling 30 to be described later is coupled, and a circular protrusion 21 (see FIG. 2) is formed on the inner circumferential surface. The circular protrusion 21 is for preventing the wiring pipe 40 coupled to the joint pipe 20 from being drawn deeper than necessary to occupy the space of the junction box, and the inner circumferential surface thereof has an outer diameter of the wiring pipe 40 (see FIG. 2). It must be made smaller.

The coupling 30 screwed to the joint pipe 20 has a thread formed on one inner circumferential surface, and several barbs 31 (see FIG. 2) protruding inclined toward the thread are formed in the middle portion of the inner circumferential surface where the thread ends. It is arranged along the main surface at regular intervals, and the supporting portion 35 extending straight in the axial direction is formed in the other direction where the barb 31 is formed.

In addition, the end portion of the support 35 is formed with a stepped step 36 having an inclined surface in both directions. The step 36 has a slight protrusion so that the wiring tube 40 can be easily moved in and out, and the wiring tube 40 is in close contact with the end of the coupling 30.

2 is a cross-sectional view showing a state of use according to an embodiment of the present invention, the junction box 10 is coupled to the joint pipe 20 and the blocking member 50, the coupling pipe 20 is coupled to the coupling ( The wiring tube 40 is coupled via 30. The wiring pipe 40 connected to the fitting pipe 20 has a pleat 41 protruding at a predetermined interval on the outer circumferential surface thereof, and is made of soft plastic so that the wiring work can be freely performed.

On the other hand, the wiring tube 40, when coupled to the coupling 30 in the same direction as the barb 31 formed on the inner circumferential surface of the coupling 30 is easily introduced, but when drawn out, formed on the outer circumferential surface of the wiring tube 40 Since the corrugation 41 is caught by the barb 31, the coupling 30 is not separated from the fitting pipe 20 unless the coupling 30 is separated from the fitting pipe 20.

In addition, the coupling part 30 is formed in the direction in which the wiring tube 40 is coupled to the support portion 35 is formed when the wiring tube 40 is moved by the external pressure, the starting point to be folded unlike the conventional barb 31 ) Is not the place where the end of the base 35, the coupling state of the corrugated 41 of the wiring tube 40 and the barb 31 of the coupling 30 is less affected by external forces.

Therefore, as in the conventional design, as the wiring tube 40 is bent, the phenomenon in which the wiring tube 40 is separated from the coupling 30 is less likely to occur.

As described above, according to the present invention, the connection between the wiring pipe and the junction box can be easily and firmly made, thereby reducing the hassle of having to redo the wiring work due to inadvertent work accidents, thereby reducing work speed and labor costs. It works.

Claims (1)

In the coupling for coupling the joint pipe and the joint pipe connected to the junction box for indoor wiring, A connector coupling with a supporting wall, characterized in that a plurality of barbs are formed on the inner circumferential surface, protrude in the inlet direction of the wiring tube, and a support portion is formed with a stepped portion having an inclined surface at the end thereof.