JPH0638316A - Waterproof mechanism for switchboard - Google Patents

Abstract

PURPOSE:To prevent water from standing by providing an inclining drainage guide part for the groove of trough protruding from the end of frame of switchboard. CONSTITUTION:Rain water intrudes through a gap between the frame 1 and door 6 of switchboard as shown by an arrow G and stands at the upper part of a drainage guide 4a disposed at the groove part of trough protruding from the frame 1. Since the drainage guide 4a has central part higher than the opposite ends and inclining against a horizontal plane, intruded rain water does not stand on the drainage guide 4a but flows down along a folded part 3 and discharged downward from the opposite ends of the frame 1. This mechanism prevents rain water from standing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof mechanism for a switchboard installed outdoors.

[0002]

2. Description of the Related Art FIG. 8 shows an example of a conventional switchboard, and is a perspective view with a door open, and FIG. 9 is an enlarged sectional view taken along the line CC of FIG. In the figure, 1 is a frame,
Reference numeral 2 denotes a gutter-shaped protrusion provided on the door side of the frame 1 to prevent rainwater from entering, 3 a bent portion at the tip thereof, 5 a packing attached to the outer surface of the bent portion 3, 6 Is a door mounted to be freely opened and closed by a hinge on one side of the frame 1, and 7 is a locking device for fixing the door 6 to the frame 1.

Next, the operation will be described. Normally, the door 6 is fixed to the frame 1 by a locking device 7. In case of rain, rainwater enters in the direction of the arrow G through the gap between the frame and the door in FIG. 9, but the rainwater is blocked by the groove portion formed by the gutter-shaped projection 2 provided at the tip of the frame 1. , It never enters the board.

[0004]

Since the conventional waterproofing mechanism of the switchboard is constructed as described above, the rainwater that has invaded the grooved portion formed by the gutter-shaped projections provided at the tip of the frame. Since it remains inside, it was necessary to remove rainwater accumulated in this ditch after precipitation. In addition, if the rainwater accumulated in this groove is left after the rain, it may cause rusting or paint loss, and eventually cause water intrusion, which prevents the waterproof function from being achieved. There was a point.

The present invention has been made in order to solve the above problems, and prevents rainwater from invading, and after rainwater collects rainwater in a groove formed by a projecting portion at the tip of the frame. Aim to get no waterproof mechanism.

[0006]

A waterproofing mechanism for a switchboard according to the present invention has a gutter-shaped groove provided at a tip of a frame for preventing rainwater from entering through a gap between the frame 1 and a door 6. The slanted drainage guide is formed.

[0007]

The waterproof mechanism of the switchboard according to the present invention drains rainwater by the inclined drainage guide portion provided on the gutter-shaped projection so as not to collect rainwater.

[0008]

EXAMPLES Example 1. Embodiment 1 of the present invention will be described below with reference to the drawings. 1 to 3, 1 is a frame, 2 is a gutter-shaped protrusion provided at the tip of the frame 1,
Reference numeral 3 is a bent portion at the tip of this protrusion, and 4a is formed on the bottom surface of the grooved portion formed by the gutter-shaped protrusions 2. It is a drainage guide that is inclined with respect to. The other configurations are the same as those of the above conventional example.

Next, the operation will be described. The switchboard shown in FIG. 1 is used by being fixed to the frame 1 by the locking device 7 with the door 6 closed. When it rains, rainwater enters through the gap between the frame 1 and the door 6 as shown by the arrow G in FIG.
The invading rainwater collects on the upper part of the drainage guide 4 provided in the groove-shaped portion of the gutter-shaped protrusion 2 of the frame 1. However, as shown in FIG. 2, the central portion of the drainage guide 4 is higher than both ends and is inclined with respect to the horizontal plane. Therefore, the invading rainwater does not collect on the drainage guide 4 and flows down along the bent portion 3 to form a frame. It will be drained from both ends to the bottom.

Embodiment 2. In the first embodiment described above, the drainage guide 4a having a central portion higher than both ends is described. However, as shown in FIG. 4, one of the end portions has an inclined drainage guide higher than the other. Even if 4b is provided, the same effect as in the above embodiment can be obtained.

Embodiment 3. Further, in the above-described first embodiment, the case where the drainage guide 4a having the central portion higher than both ends is provided has been described. However, as shown in FIG. 5, the gutter-shaped protrusion 2 provided at the end of the frame 1 and the bent portion thereof are provided. By forming the portion 3 in the board width direction so that the central portion is higher than both ends and the groove portion formed by the frame, the protruding portion, and the bent portion is inclined with respect to the horizontal plane, the same effect as that of the above embodiment can be obtained. Play.

Embodiment 4. Further, as shown in FIG. 6, a gutter-shaped protruding portion 2 provided at an end portion of the frame 1 and a bent portion 3 thereof.
In the board width direction, one end is made lower or higher than the other end with respect to the horizontal plane, and the groove formed by the frame 1, the protrusion 2 and the bent portion 3 is provided with an inclination with respect to the horizontal plane. The same effect as the embodiment is obtained.

In the above embodiment, the packing 5 is attached to the tip of the bent portion 3, but this packing 5
May be attached to the inside of the door 6.

[0014]

As described above, according to the present invention, since the inflowing water discharge guide having the groove shape which is inclined with respect to the horizontal plane is provided inside the gap between the frame and the door portion, the rainwater collects inside the switchboard. Without this, there is an effect that drainage can be performed smoothly and labor saving for maintenance and inspection can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a cross-sectional view showing a second embodiment of the present invention and corresponds to FIG.

FIG. 5 is a perspective view showing a third embodiment of the present invention.

FIG. 6 is a perspective view showing a fourth embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a fifth embodiment of the present invention and corresponds to FIG.

FIG. 8 is a perspective view showing a waterproof structure of a conventional switchboard.

9 is a cross-sectional view taken along line CC of FIG.

[Explanation of symbols]

 1 frame 2 gutter-shaped protruding portion 3 bent portions 4a, 4b drainage guide 5 packing 6 door 7 locking device

Claims (2)

[Claims] 1. A main body frame of a switchboard, and a door pivotally attached to one side of the frame so as to be openable and closable, a gutter-shaped protrusion provided at a door-side end of the frame, and a tip of the protrusion. In a grooved part constituted by a bent part, and a packing interposed between the bent part and the door surface,
A waterproofing mechanism for a switchboard, wherein a central portion is formed higher than both ends and a drainage guide portion inclined with respect to a horizontal plane is provided at a bottom portion of the groove portion of the trough-like protrusion. 2. A main body frame of a switchboard, and a door pivotally attached to one side of the frame so as to be openable and closable, and a gutter-shaped protrusion provided at a front end of the frame on the door side, and a tip of the protrusion. In a grooved part constituted by a bent part, and a packing interposed between the bent part and the door surface,
A waterproof mechanism for a switchboard, wherein one end of the trough-shaped projection is formed higher than the other end at the bottom of the groove-shaped projection, and a drainage guide portion inclined with respect to a horizontal plane is provided.