JPH0122614Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a dishwasher, and its purpose is to avoid direct connection between the drain hose and the drain pipe by providing a drop-in structure at the end of the drain hose when draining water. It is.

In most cases, conventional dishwashers drain water to the sink in the sink or to a drain pipe under the floor. In particular, mobile type dishwashers drain water to the sink in the sink, while stationary type dishwashers drain water to the sink in the sink. Usually, the water is drained into a pipe. In most cases, the drain hose on the dishwasher side is directly connected to the drain pipe under the floor, but in this case there was a risk of sewage flowing back into the dishwasher.

The present invention eliminates the above-mentioned drawbacks of the conventional technology, and embodiments thereof will be described below. In the figure, 1 is a main body of the dishwasher, 2 is a washing tank, and 3 is a pump device that integrally includes a pump for circulating washing water and a pump for draining water. 4 is a lower cleaning nozzle, 5
The upper washing nozzle sprays washing water and uses the spraying force to rotate. 6 is the lower tableware basket,
6' is an upper tableware basket. 7 is a drainage hose, 8
is a drainage pipe that rises below the floor.

FIG. 2 shows details of the connecting portion between the drain hose 7 and the drain pipe 8, and an L-shaped connecting pipe 9 is fixed to the tip of the drain hose 7. The lower end side of this connecting pipe 9 has a plurality of slits 9a in the length direction, and is deformable in the radial direction, and the portion without the slits 9a has a protrusion 10a for preventing slippage. A claw portion 10 having a shape is integrally molded. and connecting pipe 9
The lower end side is the inner pipe 11 of the air vent pipe 11.
b Rotatably inserted into the inner surface.

Also, at the upper end of the drainage pipe 8 rising from below, an air bleed pipe 11 with a double pipe structure is provided.
are screwed together via packing 12.
The air vent pipe 11 has an outer pipe 11a and an inner pipe 11b connected by a radial rib 13, and the upper part between the pipes 11a and 11b is open to the atmosphere. and inner pipe 1
The lower end side of the connecting pipe 9 is inserted into the inner pipe 11b, and the projection 10a is attached to the lower end surface of the inner pipe 11b.
is locked.

A deodorizing cover 14 is provided above the air vent pipe 11.

In the above configuration, when draining, the contaminated water used for cleaning flows from the drain hose 7 to the connecting pipe 9,
Through the inner pipe 11b of the air vent pipe 11,
It flows out into the drain pipe 8.

Here, conventionally, the drain hose and the drain pipe are often directly connected. This does not pose any problem under normal usage conditions, but if the drain pipe becomes clogged somewhere, drainage becomes impossible. Although this is not so much of a problem from a sanitary perspective, there is a possibility that sewage from other routes flows back into the dishwasher, and if the sewage gets on the dishes, it becomes a very hygienic problem.

However, according to the present invention, a water drop structure is provided at the end of the drain hose on the side of the dishwasher body to release air, so even if the drain pipe becomes clogged and sewage flows back from another route, the air will not flow out. Sewage does not flow out onto the floor at the outlet pipe and enter the dishwasher, causing no sanitary problems, and its practical value is extremely high.

In addition, since the air bleed pipe can rotate around the connection pipe, the air bleed pipe can be screwed onto a fixed drainage pipe even when the drain hose is connected to the connection pipe, making pipe installation very easy. In addition, the connecting pipe has a simple structure in which it is rotatably inserted into the inner surface of the air vent pipe from the upper part, thereby preventing water from flowing out from the rotating connecting part.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a dishwasher according to an embodiment of the present invention, and FIG. 2 is a sectional view showing a drop-in structure at the distal end of a drain hose. 2...Cleaning tank, 7...Drainage hose, 9...Connection pipe, 11...Air vent pipe, 11a, 11
b...Outer/inner pipe.

Claims (1)

[Scope of utility model registration request] For dishwashers that circulate water using a washing pump to perform washing and drain the washing water outside the machine using a drain pump, a connecting pipe is fixed to the outside end of the drain hose, and the drain pipe is raised from under the floor. , a dishwasher comprising an outer pipe of an air bleed pipe having a double pipe structure, which is threadedly connected, and a draining mechanism is provided by rotatably inserting the connecting pipe into the inner surface of the inner pipe of the air bleed pipe from above. Machine.