JPH0246867Y2 - - Google Patents

Description

[Detailed explanation of the idea] (b) Industrial application fields The present invention relates to a water injection device for a washing tub.

(b) Prior art There is a water filling box that has a long and narrow water filling chamber above the washing tub to inject water into the upper and lower parts of the washing tub and the dewatering tank, and this is disclosed in Japanese Utility Model Application Publication No. 58-5686. show. This conventional example will be explained based on FIGS. 2, 3, and 4. 1 has a pulsator 2 on the bottom.
A water injection box 3 is arranged at the upper rear part of the washing tub, and a lower injection channel 5 having a water spout 4 at the lower part is vertically provided on the inner wall.

Here, the water filling box 3 is an oblong-shaped integrally molded product made of resin, and has an upper water filling chamber 6 and a lower water filling chamber 7 which are arranged in two rows in front and back, each independent, and which pours water into a washing tub (not shown). a water supply chamber 9 in which a water supply faucet (not shown) is selectively directed to these three chambers 6, 7, and 8; The waste water discharge chamber 10 is arranged adjacent to the waste water discharge chamber 10. Further, the lower water injection chamber 7 has a semi-cylindrical water injection tube 11 as its terminal end so as to face in the vertical direction, and the lower end opening of the water injection tube 11 is communicated with the lower water injection channel 5.

The upper water injection chamber 6 has a horizontal rectangular upper water injection port 1 on the bottom.
2 is bored, and is partitioned off by a partition wall 13 a little to the left of the center, including the upper water inlet 12.
When water is supplied, water first enters the shortage water inlet 12' on the right side of the upper water inlet 12 and is injected from there, which is then displayed, but this alone indicates that the amount of water is insufficient.
When water crosses the partition wall 13 and is simultaneously injected from the proper amount water inlet 12'' on the left side of the upper water inlet 12, the appropriate amount of water is injected from above the washing tub 1.
This also indicates the appropriate amount.

The waste water discharge chamber 10 has a waste water outlet 14 at the lower front.
and the above-mentioned partition wall 1 between the upper water injection chamber 6 and the upper water injection chamber 6.
It is partitioned by an overflow wall 15 slightly higher than 3, and furthermore, an overflow hole 16 is formed to communicate with the lower water injection chamber 7. Then, the amount of water supplied to the upper and lower water injection chambers 6 and 7 is too large, and the excess water flows into the overflow wall 15 and the overflow hole 1.
When the excess water overflows from 6, the excess water is drained to the waste water outlet 1.
4 to notify that there is an excess water supply.

In such a conventional example, when the water supply faucet is directed toward the upper water injection chamber 6, the water hits the partition wall 13 that intersects perpendicularly from the front, and some of the water directly flows into the wall 13 here.
In other words, the amount of water injected may be displayed incorrectly or the insulation of electrical parts may deteriorate.Therefore, in the conventional example, as shown in the diagram, The upper water injection chamber 6 is gently and long downwardly inclined, and the water injection port 12 part is stepped down to weaken the force of the water, and two steps of deceleration ribs 17, 17 are provided on the upstream side of the partition wall 13. However, in this case, the water pouring box 3 becomes bulky, that is, becomes large, and obstructs the washing operation in the upper direction of the washing tub 1.Furthermore, in order to sufficiently reduce the speed, it is necessary to dispose a sponge-like rectifying member upstream. Ta.

(c) Purpose of the invention The purpose of the invention is to rectify water with a simple structure and thereby downsize the water pouring box.

(d) Structure of the invention The water injection device for a washing machine according to the invention is a water injection device in which a water injection box having a horizontally elongated water injection chamber is disposed above the washing tub, and a water injection port in case of insufficient water is provided at the front lower part of the water injection chamber. and a water inlet for proper amount are arranged side by side on the left and right, and this water inlet room includes a partition wall surrounding both water inlets, a partition wall that is higher than this partition wall and partitions between the two water inlets, and the water inlet from this partition wall. An outer wall extending diagonally to surround the proper amount water injection port is installed up to one side wall of the chamber, and water is supplied between the rear wall and the outer wall of the water injection chamber toward the other side wall of the water injection chamber on one side of the water injection chamber. A water inlet is provided, and a notch is further provided in a portion of the partition wall surrounding the water inlet in case of shortage to lower the height of the partition wall. In other words, the supplied water flows along the outer wall toward the other side wall, but since the outer wall has a shape that expands toward the other side wall, it diffuses while flowing to the other side wall, reducing the flow velocity, and then reaches the other side wall. do. Therefore, the amount of scattered water is small, and since it is far from the water inlet when the amount is adequate, it does not immediately flow into this water inlet, but rather flows into the nearby water inlet when there is a shortage over the partition wall. Therefore, it is less likely that the correct amount of water will flow down the water inlet from the initial stage of water supply, resulting in an erroneous display. When the amount of water supplied increases, the water level in the water injection chamber rises, the water exceeds the outer wall, is stored between the outer wall and the compartment wall, and then flows down from the water injection port when the amount is appropriate. In this way, the arrangement of the water inlet, the water inlet for insufficient water inlet, and the water inlet for proper amount, as well as the diagonally extending outer wall, makes it possible to rectify the flow of water, making the water inlet chamber relatively flat and downsizing. Can be done.

(E) Embodiment To explain based on FIG. 1, 20 is a water pouring box fixed to the upper rear part of the washing tub as in the conventional example.
It is a one-piece molded product made of resin in an oblong shape, and has an upper water injection chamber 21 and a lower water injection chamber 22 in the front and back in the horizontal direction, and a rinse water injection part for injecting water into a dewatering tank (not shown) on the outside of one side wall 23. (not shown)
are installed consecutively. Reference numeral 24 denotes a boundary wall erected to divide both water injection chambers 21 and 22 into front and rear parts with a horizontally long straight line.The upper end of the boundary wall is formed into a step shape, with the lower part facing the other side wall 25. Water injection chamber 21, 22
are communicated. Reference numeral 26 denotes a cylindrical water injection tube provided on the other side wall 25 as the terminal part of the lower water injection chamber 22, and is arranged in the vertical direction so that the lower end opening communicates with the lower injection channel (not shown) of the washing tub. The lower water injection chamber 22 is communicated with the side wall. Note that 27 is a rib that weakens the force of the water and deflects the water toward the upper water injection chamber 21, and is erected at the most downstream position of the lower water injection chamber 22.

Reference numerals 28 and 29 denote a water inlet for insufficient water and a water inlet for proper amount, which are provided in the shape of a horizontally long slit at the bottom of the upper water inlet chamber 21 near the front, and are arranged side by side on the same straight line. 3
0 is a partition wall that partitions both the water inlets 28 and 29 from the front wall 31, and 32 is a partition wall that is higher than the partition wall 30 and separates both the water inlets 28 and 29, and is erected in the upper water inlet chamber 21, respectively. be.

Reference numeral 33 denotes an outer wall that is connected to the partition wall 32 and extends to the rear of one side wall 23 while being partially curved toward the rear.The outer wall 33 is erected in the upper water injection chamber 21, and the water injection port 29 is connected to the upper water injection chamber 21 when the water is poured properly. It is enclosed including the partition wall 30.
This outer wall 33 protrudes near one side wall 23 to approximately the same height as the water pouring box 20. 34 is its protruding outer wall.

Reference numeral 35 denotes a water supply port located above one side wall 23, which can be switched between supplying water onto the boundary wall 24 along this wall toward the other side wall 25 and supplying water to the dehydration tank side by the user's operation. .

In addition, 36 is a partition wall 30 surrounding the water injection port 28 in case of shortage.
This is a cutout that lowers the portion near the other side wall 25.

With this configuration, the upper water injection chamber 21 forms a passage that gradually becomes wider from one side wall 23 to the other side wall 25. Therefore, when water is supplied from the water supply port 35, the supplied water is first divided into the upper and lower water injection chambers 21 and 22, and the water flowing through the lower water injection chamber 22 is distributed between the ribs 2 and 22.
After being deenergized by step 7, the water enters the water injection tube 26, and thereafter water is poured from the lower part of the washing tub. Further, after the power is deenergized, the water is diverted to the upper water injection chamber 21 as well.

On the other hand, the water flowing through the upper water injection chamber 21 is diffused while flowing along the outer wall 33 to reduce the flow velocity, and then reaches the other side wall 25. Therefore, the amount of water scattered is small, and hardly reaches the water inlet 29 at the proper amount near one side. The water returned from the other side wall 25 crosses the partition wall 30 from the notch 36 side, and flows through the water inlet 28 in case of shortage.
flowing down from The water flows down from the notch 36 side with a width. On the other hand, if the amount of water supplied is appropriate, the water exceeds the outer wall 33, is once stored between the outer wall 33 and the partition wall 30, becomes still water, and then flows over the partition wall 30 and flows down from the spout 29 at the appropriate amount. This flowing water has a width similar to the spout 28 in case of shortage, and when the amount is appropriate, it becomes wide and indicates the appropriate amount. The protruding outer wall 34 prevents water that comes out from the water supply port 35 and splashes against the boundary wall 24 from directly entering the outer wall 33. Moreover, since the boundary wall 24 is shaped like a step, it is possible to prevent the supply water from scattering.

If the upper and lower water injection chambers 21 and 22 are independent without communicating with each other, when the amount of water supplied becomes very small, the amount of water injected into the upper part will decrease or disappear due to the presence of the partition wall 30. Therefore, in this embodiment, in order to ensure the upper water supply amount when the water supply amount is small, the lower water injection chamber 2
The water of No. 2 is divided into the upper water injection chamber 21, and the ribs 27 help the water to flow into the upper water injection chamber 21 in a larger amount. In addition, originally it would be sufficient to divide the water supply amount into upper and lower portions depending on the arrangement of the water supply ports 35. However, in this case, when an appropriate amount of water is supplied, the force of water in the upper water injection chamber 21 becomes too strong, and the amount of splashed water increases.

When the amount of water supply increases extremely, the water level in the upper water injection chamber 21 rises significantly, and water is discharged from a waste water discharge port (not shown) installed at a suitable location on the front wall 31 to detect excessive water supply. teach.

In this manner, in this embodiment, water is injected into the washing tub from both the upper and lower sides at the same time, so that the force of water in the upper water injecting chamber 21 is suppressed from the beginning.

(f) Effects of the invention Since the present invention can achieve rectification and deceleration of the supplied water with a simple configuration, it is possible to downsize the water injection box. Therefore, the space above the washing tub can be secured, making it easier to do the washing work.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of the device of the present invention, Fig. 2 is a schematic explanatory diagram showing the installation state of a conventional water injection device, Fig. 3 is a plan view, and Fig. 4 is a front view. . 20... Water filling box, 21... Upper water filling chamber (water filling chamber), 23... One side wall, 25... Other side wall, 28...
...Water injection port when there is insufficient water, 29...Water injection port when the amount is adequate, 30...
...Division wall, 32...Partition wall, 33...Outer wall, 35
...Water supply port.

Claims (1)

[Scope of utility model registration request] In a water filling device that has a water filling box with a horizontally long water filling chamber above the washing tank, a water filling port for insufficient water and a water filling port for proper amount are placed side by side on the left and right at the front lower part of the water filling chamber, and inside this water filling chamber. includes a partition wall surrounding both water inlets, a partition wall higher than the partition wall and separating the two water inlets, and a partition wall extending diagonally from the partition wall to one side wall of the water injection chamber so as to surround the proper amount water inlet. A water supply port is provided on one side of the water injection chamber for supplying water between the rear wall of the water injection chamber and the outer wall toward the other side wall of the water injection chamber, and furthermore, when there is a shortage in the partition wall, A water injection device for a washing machine, characterized in that a notch is provided in a portion surrounding a water injection port to reduce the height of a partition wall.