JPS5829380Y2 - drain hose - Google Patents

Description

[Detailed description of the invention] This invention is a drain hose, more specifically, a drain hose that connects to the drain port of the drain receiver installed in the indoor unit of a separate type air conditioner and drains the drain stored in the drain receiver to the outside. Regarding.

The drain stored in the drain receiver is cooled,
Therefore, if a normal hose is used to drain this drain outside, water droplets will condense on the outer circumference of the hose.
These water droplets drip onto the interior of the room and the walls through which the hose is inserted, staining these interiors and walls.

Therefore, in the past, a heat insulating structure was used as the drain hose to prevent dew condensation on the outer periphery of the hose.

By the way, some drain hoses with a heat-insulating structure have a flexible hose body covered with a heat-insulating cover, but in this type of hose, the insertion port of the hose body is smaller in diameter than the main body. Therefore, a gap is created between this insertion port and the cover.

When piping the drain hose, the insertion port of the hose body is connected to the drain port of the drain receptacle, and the cover is connected to the wall of the drain receptacle. The cover is often bent near the insertion port, so that the inner side in the bending direction is contracted and the outer side in the bending direction is stretched, so that the cover and the drain receptacle are stretched between the wall part and the cover on the outside in the bending direction. Therefore, there was a problem in that dew condensed and water droplets formed in the gap between the insertion port and the cover.

The present invention solves the above problem by interposing a flexible collar between the outlet of the hose body and the cover, thereby preventing dew condensation from occurring without creating a gap between the two. The primary purpose is to prevent this from happening.

A second purpose is to form a large number of uneven stripes on at least the outer peripheral surface of the cover so that the drain hose can be bent at a steep angle, and even if bent at a steep angle, it will not wrinkle. To provide a drain hose that has a good appearance and is free from cracks.

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, H indicates a drain hose, which is formed from a hose body 1 and a heat insulating cover 2.

The hose main body 1 is integrally formed with a cylindrical insertion port 1b having a smaller diameter than the bellows portion 1a on one side of the bellows portion 1a which has a heat-insulating wave shape, and this insertion port 1b is used for separate cooling. It is connected by inserting it into the drain port d of the drain receiver D installed inside the indoor unit of the machine.

The cover 2 is formed into a cylindrical shape using a heat insulating material such as sponge, and has a large number of uneven stripes 2a having a rectangular cross section on its outer circumferential wall, and a large number of uneven stripes 2b having a corrugated cross section on its inner circumferential wall. is formed.

Each uneven portion of the uneven strip 2b is formed to be located opposite to each uneven portion of the uneven strip 2a provided on the outer peripheral wall.

Then, the cover 2 is inserted and supported on the outer periphery of the main body 1, with its inner circumferential uneven strip 2b being engaged with the bellows portion 1a of the main body 1.

A highly flexible cylindrical collar 3 made of rubber or plastic is press-fitted between the insertion port 1b of the main body 1 and the cover 2.

In this case, the collar 3 is attached to the insertion port 1b of the main body 1 and the cover 2, or is interposed in a non-adhesive state.

The cover 2 is placed so as to project slightly outward from the ends of the insertion port 1b and the collar 3, and when attached to the drain receiver D, the end of the cover 2 is placed on the wall of the drain receiver D. It is made so that it comes into contact with and compresses it.

As explained above, the drain hose of the present invention has a highly flexible collar interposed between the insertion port of the hose main body and the heat insulation cover that is fitted around the outer periphery of the main body, and Therefore, even if the drain hose is bent at a steep angle near the insertion port, an opening will not be created between the two as in the past. This made it possible to reliably prevent dew condensation.

Further, in the present invention, since a large number of uneven stripes are formed on at least the outer peripheral surface of the cover, the drain hose can be bent at a steep angle, which is very convenient for piping the hose. Even when bent at a steep angle, the outer periphery of the cover does not wrinkle and has a good appearance, and furthermore, the outer periphery of the cover does not become cracked and the insulation effect is not impaired.

[Brief explanation of drawings]

The drawing is a partially cutaway front view of the drain hose of the present invention. 1 is the hose body, 1b is the insertion port, 2 is the insulation cover, 2a
is an uneven strip, 3 is a collar, D is a drain receiver, and d is a drain port.

Claims (1)

[Scope of utility model registration request] A cylindrical heat insulating cover having a large number of uneven stripes on at least the outer wall is inserted around the outer periphery of a drain hose body having an outlet for insertion into the drain outlet of the drain receiver, and a cylindrical heat insulating cover having a plurality of uneven stripes on at least the outer wall is inserted into the outer circumference of the drain hose body. A drain hose characterized by a highly flexible collar interposed between the cover and the cover.