JPS6037116Y2 - washing machine with dehydrator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a washing machine with a dehydrator, and more particularly to the structure of a check valve that prevents drainage from a washing tub from entering a dewatering tank.

Generally, this type of washing machine with a dehydrator is constructed as shown in FIG.

That is, 1 is a main body of a washing machine with a dehydrator (hereinafter referred to as the main body), and within this main body 1, a washing tub 2 and a dewatering tank 3 are arranged side by side.

Reference numeral 4 denotes a rotatable pulsator disposed at the inner bottom of the washing tub 2, and the power of a motor 5 is transmitted to the pulsator 4 via a motor pulley 6, a belt 7, and a pulley 8.

Reference numeral 9 denotes a rotatable dehydration tank disposed within the dehydration receiving tank 3, and the power of a motor 10 is transmitted to this dehydration tank 9 via a coupling 11.

12 is a drain port provided at the bottom of the washing tub 2;
2 is equipped with a drainage filter 13.

Reference numeral 14 denotes a water overflow port provided on the upper side wall of the washing tub 2. A water overflow hose 15 is connected to the water overflow port 14, and this water overflow hose 15 is connected to a drain hose (not shown) connected to the drain port 12. ), and also communicates with a drain port 16 provided at the bottom of the dewatering tank 3, which are further led to an external drain hose 17.

In this way, the drainage system path on the washing tub 2 side and the drainage system path on the dewatering tank 3 side are in communication, so for example, when draining the washing tub 2 side, it is possible to forget to turn down the external discharge hose 17.
Alternatively, if the external discharge hose 17 straddles a step such as a threshold, drainage from the washing tub 2 will enter the dewatering tank 3 due to the outflow resistance.

In order to prevent this, conventionally a check valve 18 has been attached to the drain port 16 of the dewatering tank 3 as shown in FIG.

However, since the conventional check valve 18 has a rubber bottom, defects are likely to occur due to dimensional accuracy problems, and although it is difficult to tell at first due to irregularities in the vulcanization conditions during molding, During this time, the check valve 18 absorbs water and swells, resulting in some production difficulties, such as malfunction.

The present invention employs a check valve 21 as shown in FIG. 3 in order to solve the above-mentioned conventional problems.

That is, this check valve 21 is provided with a mounting portion 22 at one end for connecting to the drain port 16 of the dewatering tank 3, and a hinge portion 23.
A hollow valve portion 24 is provided at the other end via the valve portion 24, and a water sealing protrusion 25 is provided above the valve portion 24, and these are integrally molded from polypropylene.

As described above, in the present invention, since the check valve 21 is molded from polypropylene, its dimensional stability is far superior to that of rubber, and the action of the hinge portion 23 allows for extremely smooth operation. can be set.

In addition, polypropylene has recently been developed as a soft material with various hardnesses, so its bending rigidity is 500 to 5000 kg.
It is also possible to arbitrarily select a width of /crl.

Furthermore, since polypropylene does not absorb ice and swell, it is possible to provide a durable and high-quality check valve.

In addition, especially in this invention, since the valve part of the check valve is hollow,
Drainage from the washing tub generates buoyancy, and the valve portion reliably closes the drain port.

Therefore, the check valve function can be further enhanced.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing a general washing machine with a dehydrator, Fig. 2 is a sectional view showing the mounting part of a conventional check valve, and Fig. 3 is a sectional view of a check valve showing an embodiment of the present invention. It is a diagram. 2...Washing tub, 3...Dehydration tank, 4.
- Curved pulsator, 9... Dehydration tank, 16 - Curved drain port, 21... Check valve, 22... Mounting part, 23... Hinge Part, 24...Bend part.

Claims (1)

[Scope of utility model registration request] A washing tub equipped with a rotatable pulsator on the inner bottom, a dehydration receiving tank with a rotatable dehydration tank inside, and a dehydration receiving tank that is attached to the drain port of the dehydration receiving tank, and the waste water from the washing tub enters the dehydration receiving tank. and a check valve that prevents the water from leaking, the check valve having an attachment part to a drain port at one end,
A washing machine with a dehydrator, characterized in that a hollow valve part is provided at the other end via a hinge part, and the bottom part is made of polypropylene.