JPH0321741Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a water supply device for supplying water to a washing tank or a dewatering tank of a washing machine.

[Conventional technology]

Washing machines are equipped with a water supply device to receive water from a water pipe. Such a water supply device does not simply lead water poured out from a water supply hose connected to a water pipe into a washing tank or a dehydration tank;
When high pressure water is supplied from a water pipe,
In order to prevent strong water from directly hitting the items to be washed, the water pressure is weakened and the water pressure is always maintained at a constant level, and it also works to softly supply water into the washing tank and spin-drying tank.

To this end, a filter as a water pressure buffer is loaded into the water supply case, and the high water pressure is weakened by passing the water through the filter. Conventionally, as shown in FIG.
A plurality of fixing plates 22a are protruded from the bottom of the water supply case 22 at appropriate intervals so that the filters 21 are not washed away by water, and the fixing plates 22a are inserted between the filters 21 to fix the filter 21 to the water supply case 22. A water supply pipe 22 was opened above the water supply case 22 and water was supplied from there into the water supply case 22.

[Problem that the invention attempts to solve]

However, in this method, since the water supply pipe 23 is located apart from and above the water supply case 22, the water discharged from the end of the water supply pipe 23 is filtered through the filter 2.
During this time, the water increases in force and becomes high pressure, which hits the filter before it hits the filter 21. As a result, the filter 21 is compressed and deformed, as shown in FIG. 5, and no longer functions as a cushioning material. Then, the water hits the filter 21 that has been deformed in this way, and the water is scattered outside the water supply case 22, making it difficult to supply water smoothly.

Furthermore, since the water supply case 22 has a structure in which a plurality of fixing plates 22a protrude from the bottom, it is difficult to perform inexpensive blow molding, and the manufacturing cost is also high.

The purpose of the present invention is to provide a water supply device that eliminates the disadvantages of the conventional example, prevents deformation of the filter, reliably reduces water pressure, provides smooth water supply, and can be manufactured at low cost.

[Means for solving problems]

In order to achieve the above object, the present invention provides a water supply device for a washing machine in which the outlet side of a water supply pipe is connected to the inlet of a box-shaped water supply case, which has an inlet on the top surface and an outlet on the side. An appropriate number of arrowhead-shaped elongated protrusions with acute-angled tips are provided downward from the lower end of the water supply pipe, and the water supply pipe's outflow side is used as the inlet of a water supply case in which a hydraulic shock absorber is loaded inside. The gist is to connect the projecting piece to the hydraulic shock absorbing material and insert the projecting piece into the hydraulic shock absorbing material.

[Effect]

According to the present invention, by inserting the elongated protrusion between the hydraulic cushioning materials, the outflow side of the water supply pipe opens close to the hydraulic cushioning material, and the water discharged from the outflow side of the water supply pipe end is immediately buffered. Since the water flows into the material, the water pressure does not particularly increase between the end of the water supply pipe and the hydraulic cushioning material, and the hydraulic cushioning material does not deform due to high water pressure. Furthermore, the hydraulic shock absorbing material is fixed within the water supply case by the elongated protruding piece, and will not be pushed out from the outlet on the side of the case by water pressure.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Fig. 1 is an exploded perspective view showing an embodiment of the water supply device for a washing machine according to the present invention, and Fig. 2 is an overall perspective view with a part cut away of a two-tank washing machine equipped with a water supply device. To explain from the overall structure of the two-tank washing machine, the two-tank washing machine has a washing tank 2 and a dewatering tank 3 inside an outer box 1.
In front of the dehydration lid 4 that covers the top surface of the dehydration tank 3, there is provided an operation panel 5 in which a power on/off switch and various select switches for washing, dehydration, etc. are arranged. A top panel 7 is provided at the rear of the water level, on which a knob 6 for changing the water level and the like are provided.

In the figure, 8 indicates a water supply hose connected to a water faucet (not shown).

The water supply device of the present invention is connected to this water supply hose 8, and as shown in FIG. and the outflow side 9b is opened downward. On the outflow side 9b of the water supply pipe 9, an appropriate number of arrowhead-shaped elongated protrusions 11 whose tips are formed with acute angle portions 11a are provided integrally with the lower end of the water supply pipe 9 to protrude downward.

In the figure, 12 indicates a box-shaped water supply case, and this water supply case 12 has an inlet 12a formed on the top surface and an outlet 12b formed on the side, and a filter 13 as a hydraulic shock absorber is installed inside. There is.

On the other hand, a water supply port 7a is provided in the upper panel 7, and a water supply hose 8 is connected thereto via a hose joint 14. Note that 15 in the figure indicates a nut for fixing this hose joint 14 to the upper panel 7.

In this way, when the outflow side 9a of the water supply pipe 19 is fitted into the inlet 12a of the water supply case 12, the elongated protrusion 11 integrally formed here is inserted deeply into the filter 13 in the water supply case 12. Filter 13 is fixed within water supply case 12. In this state, the open end of the outflow side 9b of the water supply pipe 9 is brought close to the filter 13.

The outflow port 12b of the water supply case 12 is connected to the water injection channel 16, and the inflow side 9a of the water supply pipe 9 is connected to the lower surface of the water supply port 7a provided on the top panel 7. In this way, the water supply hose 8, the water supply pipe 9, the water supply case 1
A water supply path will be formed between 2 and the water injection channel 16.

Next, to explain the operation, to pour water into the washing tank or dehydration tank, open the water faucet, and the water will flow through the water supply hose 8 to the hose joint 14 and the water supply port 7.
It enters the inflow side 9a of the water supply pipe 9 through the water supply pipe 9, and when the water supply valve 10 is opened, it is discharged from the outflow side 9b of the water supply pipe 9 into the water supply case 12.

At this time, the open end of the outflow side 9b is connected to the filter 13.
Because of the proximity to the filter 13, water is immediately discharged from the outlet side 9b into the filter 13, and a portion of the water flows along the elongated protrusion 11 directly into the filter 13. Also, inside the filter 13 there is a slender protrusion 1.
1, the filter 13 will not move due to water pressure.

Furthermore, since the water supply case 12 has a closed top surface, even if water with very high pressure is supplied into the water supply case 12, the water will not overflow into the surrounding area.

The water discharged from the water supply pipe 9 into the water supply case 12 passes through the filter 13, where the water pressure is weakened to a constant water pressure, and is discharged into the water injection channel 16, from which the washing tank 2 or the dehydration tank 3 Soft water is poured into the area.

[Effect of idea]

As mentioned above, in the water supply device of the washing machine of the present invention, since the outflow side of the water supply pipe and the filter in the water supply case are brought close to each other, the water pressure does not particularly increase immediately before it flows into the water supply case, and as a result, Since high pressure water does not hit the top of the filter, the filter is prevented from deforming, water does not scatter around, and water can always be poured smoothly and softly, and the filter does not move due to water pressure.

Furthermore, since the filter fixing member is integrally formed on the water supply pipe side, the assembly structure is simple and the water supply case can be manufactured by inexpensive blow molding.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing an embodiment of the water supply device for a washing machine of the present invention, Fig. 2 is an overall perspective view with a part cut away of a two-tank washing machine equipped with a water supply device, and Fig. 3
The figure is a longitudinal sectional front view of a water supply device, and FIGS. 4 and 5 are longitudinal sectional front views showing main parts of a conventional water supply device. 1...Outer box, 2...Washing tank, 3...Dehydration tank,
4...Dehydration lid, 5...Operation panel, 6...Knob for changing water level, 7...Top panel, 7a...Water inlet, 8...Water supply hose, 9...Water supply pipe, 9a...
Inflow side, 9b... Outflow side, 10... Water supply valve, 11
... Elongated protrusion, 11a ... Acute corner, 12 ... Water supply case, 12a ... Inflow port, 12b ... Outflow port,
13...Filter, 14...Hose joint, 15
... Nut, 16 ... Injection channel, 21 ... Filter, 22 ... Water supply case, 22a ... Fixing plate, 2
3... Water supply pipe.

Claims (1)

[Scope of utility model registration request] In a water supply device for a washing machine, in which the outlet side of a water supply pipe is connected to the inlet of a box-shaped water supply case having an inlet on the top surface and an outlet on the side, the water supply case is configured to connect the outlet side of the water supply pipe downward from the lower end of the outlet side of the water supply pipe. A suitable number of elongated arrowhead-shaped protrusions with acute-angled tips are protruded, and the outflow side of this water supply pipe is connected to the inlet of a water supply case that is loaded with a hydraulic cushioning material inside, and the protrusions are used to absorb water pressure. A water supply device for a washing machine characterized by being inserted into a cushioning material.