JPS5912540Y2 - Insulated box with drainage system - Google Patents

Description

[Detailed description of the invention] The present invention relates to an insulating box body equipped with a drainage device for filling foam insulation material with a drainage device installed between the inner box and the outer box in advance, and the box body is used as a water storage. The purpose is to perform water leakage sealing when dissolving dissolved water and foaming leakage sealing at the same time, and to perform each sealing reliably.

An embodiment of the present invention will be described below based on the drawings.

1 is an opening bored in the bottom recess 2A of the inner box 2, 3 is a drain pipe having a cylindrical drainage passage 3A narrower than the opening 1 and has a brim-like flange 3B at the top, 4 is a drain pipe extending downwardly. It has a tapered protruding cylinder 4A and a flange-like surface 4 at the top.
It is a seal body shaped like B, with its periphery slightly bent downward, and is made of a thin metal plate.

Then, the drain passage 3A of the drain pipe 3 is made to correspond to the opening 1, and the protruding cylinder 4A of the seal body 4 is inserted through the opening 1 and enters the drain passage 3A.

Therefore, the bottom recess 2A is supported by the collar-shaped flange 3B of the drain pipe 3 and the collar-shaped surface 4B of the seal body 4.

In this state, the three parts are jointly fastened together using screws 5 at appropriate locations.

Then, the peripheral bent end 4C of the brim-like surface 4B strongly presses the bottom recess 2A.

Further, the upper opening edge 3C of the drain passage 3A is strongly contacted by the outer surface of the tapered protruding cylinder 4A.

Note that the screw 5 is tightened until the brim-like surface 4B is recessed and comes into contact with the bottom recess 2A.

Furthermore, the drain pipe 3 is passed through the outer box 6 via the seal member 6.

With the drainage device installed between the inner box 2 and outer box 7 as described above, a foamed heat insulating material 8 is filled between both boxes 2 and 7 to construct a water storage box. Ru.

As described above, the present invention is an insulating box body equipped with a drainage device.
The bent end of the brim-shaped surface edge of the seal body applies strong pressure to the bottom recess of the inner box, reliably preventing the leakage of dissolved water from inside the refrigerator, and ensuring that dissolved water flows into the drainage passage through the protruding opening. .

Furthermore, since the protruding opening is located in the bottom recess, the dissolving water can smoothly move from the other bottom surface of the inner box, which is an extremely practical advantage.

Furthermore, since the tapered protruding cylindrical outer surface strongly contacts the opening edge of the upper end of the cylindrical passage of the drain pipe, when filling with foam insulation material, even if the insulation material leaks from the contact area between the brim-shaped flange of the drain pipe and the bottom recess, it will not leak inside the drain pipe. This has the extremely practical advantage of being able to reliably prevent foam leakage.

Furthermore, the present invention has the excellent advantage that by installing a drainage device between the inner box and the outer box, the water leakage sealing of the dissolved water and the foaming leakage sealing can be performed simultaneously and reliably.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the main part of the heat insulating box of the present invention, and FIG. 2 is a sectional view of the seal body. 2... Inner box, 3... Drain pipe, 4... Seal body, 6
... Seal member, 7... Outer box, 8... Foam insulation material.

Claims (1)

[Scope of utility model registration request] In an insulating box body in which a drainage device is installed between the inner box and the outer box and the foam insulation material is filled, an opening is bored in the bottom recess of the inner box, and a cylindrical drainage passage narrower than the opening is formed. A drain pipe with a brim-shaped flange on the upper part, and a seal body with a tapered protruding cylinder formed on the lower part and the peripheral edge of the upper brim-shaped surface slightly bent downward, are provided. By supporting the bottom recess with the brim-like flange of the pipe and the brim-like surface of the seal body and tightening them together, the bent end of the periphery of the brim-like surface applies strong pressure to the bottom recess, and the drainage passage is closed. The upper opening edge is forcibly contacted by the outer surface of the tapered protruding cylinder to extend the protruding cylinder inwardly into the drainage passage, and the drain pipe is passed through the outer box via a sealing member to connect the inner box to the outer box. An insulating box body equipped with a drainage device characterized by filling the space between the boxes with foam insulation material.