JP3192185B2 - Rainproof joint box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power line, a telephone line, and the like from outside, which are led into the ground through a support, led out from the ground, and drawn indoors to draw a power line, a telephone line, and the like outside a building. The present invention relates to a rainproof joint box installed on a wall.

[0002]

2. Description of the Related Art This type of rainproof joint box is
The outer shell is composed of a body and a cover, and the body is installed on the outer wall surface through a waterproof packing, and the cover is covered on the front of the body. In addition, a terminal block for relaying an external electric wire indoors is provided on the body.

[0003]

In such a conventional example, when the cover is covered on the body, the rear end of the cover is in contact with the front side of the flange on the side of the body.
Even if the packing for waterproofing is provided on the back of the body, there is a possibility that when rain falls, water droplets may flow around the back of the body and infiltrate into the rainwater into the body.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has been made in consideration of the above-mentioned circumstances. In the event of rain, a rainproof joint box is provided for preventing a water drop from rotating on the back of the body to further enhance the rainproof effect. Is provided.

[0005]

According to the present invention, a power supply line, a telephone line, and the like from the outside are drawn into the ground through a support, and are led out from the ground to draw a power supply line, a telephone line, and the like indoors. Knock doors through which a conduit is inserted and a back plate fixed to the outer wall and provided with a terminal block for relaying wires from the outside to the room
A body composed of a bottom plate with an out portion formed thereon, a cover detachably mounted on the front surface of the body, and a waterproof packing interposed between the back surface and the wall surface of the body, UTO covering the outer surface of the body at the inner surface of the cover
Both the front surface of the terminal block, not covering the side surfaces and upper surface, is obtained by projecting the rear end portion of the cover from the back of the body.

[0006]

When the rain falls, water drops hit the rear end of the cover projecting from the back of the body, preventing the water drops from turning inside the body, and the prevention effect can be further enhanced. .

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of the rainproof joint box of the present invention. The body 1 made of an insulating material is formed in a substantially L-shape, and includes a back plate 2 and a bottom plate 3. At the end of the back plate 2 of the body 1, a plurality of mounting holes 4 for screw insertion for mounting on the outer wall surface are formed.

An electric wire insertion hole 5 is formed between the mounting holes 4, and a rectangular electric wire insertion hole 6 is formed at the center side. At one end of the central portion of the back plate 2 is formed a terminal block mounting portion 8 on which a terminal block 7 for 100 V / 200 V to which a power supply line from the outside is connected. At the other end of the central portion of the back plate 2, a terminal block mounting portion 10 for arranging a terminal block 9 for weak electricity such as a telephone line is formed.

The terminal block 7 is attached to the terminal block mounting section 8 with a tapping screw 11, and a rib 12 is formed around the terminal block 7 to prevent water from entering the terminal block 7. In addition, the terminal block 9 is also attached to the terminal block mounting portion 1 with a tapping screw 13.
A rib 14 is provided around the terminal block 9 to prevent water from entering the terminal block 9. Body 1 backboard 2
Side walls 15 are integrally provided with the bottom plate 3 on the upper side and both sides of the base plate 3 to prevent water from entering. Narrow flanges 16 are formed on both sides of the back plate 2, and grooves 17 are formed on the outer surface of the side wall 15 by ribs 18 formed vertically. In the middle of the rib 18, the notch 1
9 are formed.

The bottom plate 3 of the body 1 is formed with three knockout portions 20 through which a conduit tube erected from underground is inserted. The tip of a driver is inserted into the center of the circular knockout portion 20. A slit 21 is formed. In the center of the body 1, an insulating separator 22 for separating the terminal block 7 for the power supply line and the terminal block 9 for the weak electric current is arranged, and the end of the separator 22 is inserted and supported. A groove 23 to be formed is formed inside the side wall 15. A rubber packing 24 having a rectangular frame shape is mounted on the back surface of the body 1, and water enters the back surface of the body 1 with the packing 24.

A cover 25 which is mounted on the front surface of the body 1 and is made of an insulating material has an opening on the back surface and the bottom surface. A notch 19 formed in the side wall 15 of the body 1 is formed inside the side plate 26 of the cover 25. A plurality of fixing ribs 27 that are inserted and locked with the grooves 17 are formed. A hole 28 is formed in the lower portion of the front surface of the cover 25, and a mounting screw 30 having a spring 29 inserted therein is inserted from the front surface, and a fastener 31 for retaining is attached to a tip of the mounting screw 30.

Next, a case where the cover 25 is mounted on the body 1 will be described. The cover 25 is slightly shifted upward at the front of the body 1 installed on the wall surface, and the positions of the fixing rib 27 of the cover 25 and the notch 19 of the body 1 are aligned. Then, when the cover 25 is pushed toward the body 1,
The fixing rib 27 is inserted through the notch 19, the cover 25 is slid downward, and the fixing rib 27 is inserted and locked in the groove 17 of the body 1, whereby the rib 18 of the body 1 and the fixing rib 27 of the cover 25 are connected. At the same position, the cover 25 is fixed to the body 1. Then, the cover 25 is fixed to the body 1 by pushing the mounting screw 30 against the spring force of the spring 29 and screwing it into the screw hole of the body 1.

When the cover 25 is to be removed from the body 1, the mounting screw 30 is removed, and then the cover 25 is slid slightly upward so that the fixing rib 27 and the notch 19 are aligned. When pulled, the cover 25 can be easily removed from the body 1. Here, the amount by which the cover 25 is slid is only the amount by which the fixing rib 27 is fitted to the notch 19, and therefore, even if there is an obstacle 32 immediately above the body 1, the amount of slide of the cover 25 is small. The cover 25 can be easily attached and detached.

Next, a case where the cover 25 is temporarily fixed to the body 1 will be described. As shown in FIG. 1, ribs 36 are formed at upper ends on both sides of the body 1.
A rib 38 having a concave portion 37 engaging with 6 is formed at a lower portion of the inner surface of the cover 25. The surface of the projection 39 above the rib 38 is curved so that the rib 36 can easily get over the rib 36.

Now, from the state where the cover 25 is completely covered with respect to the body 1, the cover 25 is slid upward while the fixing rib 27 of the cover 25 is slid into the groove 17 of the body 1. When the cover 25 reaches the upper end of the body 1, the protrusion 39 of the rib 38 of the cover 25 rides over the rib 36 of the body 1, and the concave portion 37 of the rib 38 and the rib 36 engage with each other.

The cover 25 is moved to the body 1
Is temporarily fixed to the body 1 with its front surface exposed. Here, when the cover 25 is mounted on the body 1, as shown in FIG.
Since the rear end of the cover 5 is formed so as to protrude, even if it rains, the water droplet does not hit the rear end of the cover 25 and is prevented from turning into the body 1, so that the prevention effect can be further enhanced.

[0017]

As described above, according to the present invention, a power supply line, a telephone line, and the like from the outside are drawn into the ground through a support, drawn out from the ground, and drawn indoors to draw a power supply line, a telephone line, and the like. In the rainproof joint box installed on the outer wall of
Knockout for inserting a conduit and a back plate that is fixed to the outer wall surface and has a terminal block that relays external wires to the indoors
A body constituted by a bottom plate having a portion formed thereon, a cover removably provided on the front surface of the body, and a waterproof packing interposed between the back surface and the wall surface of the body. UTO co covering the outer surface of the body at the inner surface of the cover
The front of the terminal block, not covering the side and top surfaces, since it is one obtained by projecting the rear end portion of the cover from the rear of the body, when it rained, the rear end portion of the cover which projects from the rear face of the body Water droplets are prevented from hitting the inside of the body due to the water droplets, and the effect of preventing the water droplets can be further enhanced. Also, pass the power line through the knockout
And pull it into the rainproof joint box
Side can be connected to the terminal block, this connection part,
When covered with covers on the front, side and top
The bottom side is covered with a bottom plate to prevent the connection
It has excellent rain resistance, and it has a rain-proof joint box.
Remove the cover with the
Remote connection work can be performed, and the tangential part
Easy connection work despite improvement
be able to.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an entire joint box according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the above.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Body 2 Back plate 3 Bottom plate 7 Terminal block 9 Terminal block 20 Knockout part 24 Packing 25 Cover

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model 63-172217 (JP, U) Japanese Utility Model 2-141980 (JP, U) Japanese Utility Model 63-47581 (JP, U) Japanese Utility Model Sho 60- 117584 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 13/52

Claims (1)

(57) [Claims] 1. A power supply line, a telephone line, and the like from the outside are drawn into the ground via a support, drawn out from the ground, a power supply line, a telephone line, and the like are drawn indoors, and a protection device installed on the outer wall surface of the building is provided. In the rain-shaped joint box, a back plate fixed to the outer wall and provided with a terminal block that relays external lines
With the bottom plate on which the knockout part through which the wire tube is inserted is formed
A body configured, a cover removably provided on the front of the body, and a waterproof packing interposed between the back surface and the wall surface of the body. Utotomoni terminal block on the front covering the outer surface, side surfaces and
Upper surface has covered, Rainproof joint box, characterized in that is protruded to the rear end portion of the cover from the back of the body.