KR19990012461U - Drainage filter for washing machine - Google Patents

Abstract

The present invention relates to a drainage filter for a washing machine, and in particular, a packing that expands outwardly by tightening a handle of a screw to fix the filter network from being detached from the housing is more firmly contacted with the housing to prevent the filter network from being separated from the filter housing. It relates to a drainage filter for a washing machine.

This invention devises a drainage filter for a washing machine consisting of a filter net 21 in which a handle 22 is screwed into a housing 20 and a handle fixing portion 21a on one side, in which an inlet and an outlet are formed and serve as a flow space of water. In the above, the engaging groove 20a is formed in an annular shape along the inner circumferential surface wall of the filter net insertion hole of the housing 20, and the locking feather 23a is formed at one end of the packing 23. The packing 23 is prevented from being separated from the filtering net 21, and the outer periphery of the packing 23 extended outwardly is pressed into the locking groove 20a so that the filtering net 21 is removed from the filter housing 20. It is not to escape.

Description

Drainage filter for washing machine

The present invention relates to a drainage filter for a washing machine, and in particular, a packing that is secured to extend outwards by screwing a handle to prevent the filter network from being separated from the housing is more firmly contacted with the housing to prevent the filter network from being separated from the filter housing. It relates to a drainage filter for a washing machine.

In general, the washing machine has a vortex type, a stirring type, a drum type according to the washing method, but generally used for home use is a vortex type, in particular, a tank type fully automatic washing machine. An example of a fully automatic vortex washing machine is schematically shown in FIG. 1 as a longitudinal sectional view.

As shown, the washing machine includes a water tank 1 for accommodating water, and inside the water tank 1 there is a washing tank 2 for dehydration from laundry and a pulsator for forming water flow in the water. It is rotatably installed. In addition, a reduction gear assembly 5 for transmitting driving force to the washing tank 2 and the pulsator 3 is installed at the center of the bottom surface of the water storage tank 1, and is driven at a position biased from the center of the bottom surface of the water storage tank 1. The motor 4 is provided.

In addition, a drainage hole for discharging water in the reservoir 1 is formed at the bottom of the reservoir 1, and a drain pump 7 for forcibly discharging the water discharged from the drainage hole to the outside of the trauma is provided in the drainage hose 8. It is connected to the drain hole, and between the drain hole and the drain pump 7 is provided with a drain filter (6) for filtering the foreign matter contained in the water.

In the drainage structure configured as described above, the drainage filter 6 is configured by installing the filtering net 11 in the housing 10, the handle fixing part that the handle 12 is screwed on one side of the filtering net 11 11a is formed and the filter net 11 is inserted into the housing 10 while the packing 13 is inserted into the outer circumferential surface of the handle fixing part 11a, and then the handle 12 is compressed by compressing the packing 13. The outer circumferential surface of the packing 13 is brought into close contact with the inner circumferential surface of the housing so that the filtering net 11 is fixed in the housing 10.

However, as described above, the filtering net 11 fixed by attachment between the packing 13 and the housing 10 has a weak coupling force between the packing 13 and the housing 10, so that the water pressure is increased, and thus the filter net 11 is located at one side of the filtering net 11. When water pressure is applied to the formed waterproof plate 11b, there is a problem that the filter network 11 is separated from the housing 10 without being able to withstand the water pressure.

Accordingly, an object of the present invention is to solve the above-mentioned defects, and to form a catching collar caught on a part of the filtering net at one end of the packing, and to form a catching groove on a part of the filter housing, as well as the coupling between the packing and the filtering net. It is to provide a drainage filter for a washing machine that improves the binding force to prevent the filtering network from being separated from the housing.

A feature of the present invention for achieving the above object, in the inlet and outlet port is formed in the drainer filter for washing machine consisting of a filter network screwed to the handle housing and the handle fixing part of one side, which serves as a flow space of water, A locking groove formed in an annular shape on an inner circumferential wall of the filter net insertion hole of the housing; Is inserted into the outer circumferential surface of the handle fixing part, the catching collar caught on the waterproof plate formed on one side of the filtering net on one side is formed in a ring shape and is expanded outward as the handle is screwed to the handle fixing part is tightened. Its outer circumferential surface is in a drainage filter for a washing machine comprising a packing that is pressed into a locking recess of a housing.

Hereinafter, a more preferred embodiment of the drainage washing machine for a washing machine according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a longitudinal sectional view schematically showing a one-wash washing machine,

Figure 2a is a cross-sectional view of a state in which the drainage filter of the conventional washing machine is inserted into the housing,

Figure 2b is a cross-sectional view of the conventional drainage filter of the washing machine fixed in the housing,

Figure 3a is a cross-sectional view of the drainer of the washing machine is inserted into the housing according to the present invention,

Figure 3b is a cross-sectional view of the drainage filter of the washing machine according to the present invention is fixed in the housing.

〈Description of the symbols for the main parts of the drawings〉

6 ... drain filter 7 ... drain pump

8 ... drain hose 10,20 ... housing

20a ... hook groove 11,21 ... filter net

11a, 21a ... Handle Fixing 11b, 21b ... Waterproof Plate

12,22 ... handle 13,23 ... packing

23a ... hanger

Figure 3a is a cross-sectional view of a state in which the drainage filter of the washing machine according to the present invention is inserted into the housing, Figure 3b is a cross-sectional view of the state of the drainage rotor of the washing machine fixed in the housing.

As shown, the drainage filter for a washing machine according to the present invention is inserted into the packing 23 and the filter net of the housing 23 is formed with a locking collar (23a) is caught on the waterproof plate 21b of the filter net 21 at one end A locking groove 20a is formed in an annular shape along the inner circumferential surface of the cavity.

The filter net 21 is formed such that a plurality of water holes are formed on the plate surface so that water passes through and only the foreign substances are caught on the plate surface, and one side end is fixed to support the filter net 21 in the filter housing 20. The structure is formed. The fixing structure is formed of a screw thread formed on the inner circumferential surface and a waterproof plate 21b formed in a disc shape between the handle fixing portion 21a and the filter net 21 portion and the handle fixing portion 21a into which the packing 23 is inserted into the outer circumferential surface. It consists of. In addition, an engaging groove 20a is formed in an annular shape along an inner circumferential surface of the filter net insertion opening side of the housing 20 that accommodates the filter net 21.

The catching recess 20a is a portion into which a part of the outer circumferential surface of the packing 23 is press-fitted, which protrudes to form a locking protrusion, so that the outer circumferential surface of the packing 23 is caught so that the filter net 21 is separated from the housing 20. It can be easily understood by those who work in the field to which the subject innovation belongs because it can be prevented to be carried out by the protrusions.

The packing 23 has an inner circumferential surface portion which is opened in a hollow annular ring shape having an inner surface thereof is inserted into the outer circumferential surface of the handle fixing portion 21a of the filtration net 21, and one end portion is formed with a locking feather 23a. The packing 23 is prevented from being separated from the filter net 21 by being caught by the waterproof plate 21b formed in a disc shape between the 21 and the handle fixing part 21a.

The packing 23 is compressed laterally by tightening the handle 22 and extended outward.

The drainage filter configured as described above holds the packing 23 to fix the housing 20 to a part of the washing machine and to fix the fixing feather 23b to the waterproof plate 21b formed at one side of the filter net 21. After the insertion into the outer circumferential surface of the government portion 21a, the filter net 21 is inserted into the housing 20.

As described above, after the filter net 21 is inserted into the housing 20, the handle 22 is screwed into the handle fixing portion 21a to tighten the packing 23 sufficiently. As described above, when the handle 22 is sufficiently tightened, the packing 23 is extended outward and the outer circumferential surface of the packing 23 is pressed into the locking groove 20a formed in the inner circumferential surface of the housing 20 to filter the filter net 21. This housing 20 will not be separated.

According to the present invention as described above, the catching 23 is formed on one side of the packing 23 is caught on the waterproof plate 21b formed on one side of the filtering net 21, the packing 23 is separated from the filtering net 21 Since the outer circumferential surface of the packing 23 is press-fitted to the locking recess 20a formed on the inner circumferential surface of the housing 20, the filter net 21 is firmly fixed in the housing 20.

Claims (1)

In the water drainer of the washing machine consisting of a filter 20 is formed in the inlet and outlet, and the handle 20 is screwed to the housing 20 and the handle fixing portion 21a on one side, which serves as a flow space of water, A locking groove 20a formed in an annular shape on an inner circumferential surface wall of the filter net insertion hole of the housing 20; Is inserted into the outer circumferential surface of the handle fixing portion (21a), the locking feather (23a) is caught in a ring shape formed on one side of the filter plate 21 on one side of the filter net 21 is formed in a ring shape, the handle fixing portion (21a) The draining rotor for a washing machine comprising a packing 23 which is extended outward as the handle 22 is screwed to the tightening and the outer circumferential surface is pressed into the locking groove (20a) of the housing (20).