CN1069363C - Device for adding water and/or detergent for autocontrolled drum washer - Google Patents

Abstract

The invention relates to a device for adding water and/or detergent for an automatically controlled drum washing machine. Its inlet pipe is aligned with the peripheral surface of the washing drum. The inside of the washing lever is hollow and has water suction holes and drainage holes leading to the washing drum on the outer contour. In addition, the washing machine has a drum positioning device.

In order to achieve shorter washing time, better washing effect and less detergent consumption, whenever the washing drum positioning device makes the washing drum stop at the inlet of the inlet pipe as accurately as possible on the opposite side of a washing lever, the inlet pipe is always effectively connected. In this way, the incoming water and/or detergent can be directly sprayed onto the clothes in the washing drum through the hole in the lever.

Description

Automatically controlled water and/or detergent filling device for front-loading washing machine

The invention relates to a device for adding water and/or detergent for an automatically controlled drum washing machine, wherein the inlet pipe leading from the detergent adding device to the washing liquid tank is rotatably supported in the washing liquid tank at least close to horizontally On the circumferential surface of the washing drum, the washing drum has at least three washing levers, the inside of the washing levers is empty and the shell side is arranged with water suction holes and drainage holes discharged into the washing drum. Simultaneously, this device is effectively connected with a washing drum positioning device, and the washing drum can be stopped at a predetermined position by this positioning device.

DE-OS 40 37 868 proposes this washing machine. A positioning method and a device for carrying out the method are described therein by means of a front-loading washing machine with side-loading of the cabinet. Although the above-mentioned publication does not describe the detergent flushing device, this detergent flushing device belongs to the common prior art, so it can be directly concluded that the washing machine mentioned in the above-mentioned publication must have this washing machine. agent flushing device; the same applies to the above-mentioned washing lever. This washing lever has such a structure that when it passes through the washing liquid located at the lower part of the washing liquid tank, it takes away part of the washing liquid and discharges it into the inner cavity of the drum through the drain hole at a higher position.

This known detergent flushing device feeds clean water and detergent from below into the washing liquid tank or from the side or from above into the washing drum from the flushing tray. But only a small part of water and detergent directly reach the clothes to be washed through the water leakage holes of the washing drum. Most of the water and detergent first flow into the lower part of the washing liquid tank, and the temporarily undissolved part of the detergent settles on the bottom of the washing liquid tank, and only gradually mixes with water, dissolves and distributes evenly through the rotating motion of the washing drum on clothing. As a result, the chemical action of the detergent on the laundry is delayed.

The task of the present invention is to directly send the water and detergent input into the washing drum to the clothes to be washed in the washing drum, so that the clothes are soaked quickly and the washing agent is directly sent to the clothes as soon as possible.

This task of the present invention is accomplished by an above-mentioned device, and the feature of this device is: when the washing drum positioning device stops the washing drum at the entrance of the washing liquid tank inlet pipe, it is located at the opposite position of a washing lever as accurately as possible. , the device for adding water and/or detergent through the inlet pipe controlled by the washing machine is switched on.

In this way, the clear water from the water pipe or the feed water and detergent circulated in the washing machine through the circulation pipe can directly flow from the inlet of the input pipe to the clothes to be washed in the washing drum through the hole of the driving rod. In this way, the clothes are quickly soaked and chemically react with the detergent, thereby realizing shorter washing time, better washing effect and less detergent consumption.

For the washing machine with loading on the side of the casing, the device of the present invention has special advantages in structure, that is, the stop position of the washing drum just makes the charging hole of the washing drum be positioned at the opposite side of the vertical drum of the washing machine shell, that is, the washing machine's These structural features can realize that at least one driving lever is stopped at the stop position below the inlet of the input pipe.

In an advantageous development of the device according to the invention, the width of the inlet of the feed pipe measured in the direction of rotation of the drum is smaller than the suction hole of the lever, so that the advantage is that the positioning of the washing drum does not have to meet the highest requirements for positional error. Appropriate correspondence can be established between the inlet of the input pipe and the water suction hole of the stop lever.

The device of the present invention can also be improved in structure, that is, the drum can stop at any position corresponding to the input pipe inlet of the driving lever. The advantage of this structure is that when adding fresh water and/or adding detergent, the drum does not need to rotate a full circle to turn the clothes. During a full turn, it is likely that the same clothing section will re-upside down in its original position. That is to say, the washing drum turns to the next position of the three driving levers and only rotates a third of a circle to realize the complete re-pile of the clothing, so other clothing parts are just positioned above the last location. As a result, the soaking of the clothes takes place more thoroughly, more evenly and more quickly and the detergent is applied to the whole clothes.

Certainly device of the present invention is also applicable to the washing machine of charging in front. The present invention will be described in detail below in conjunction with the embodiments shown in the accompanying drawings. Attached is:

Fig. 1 shows a partial side view schematic diagram of the washing machine when the washing drum is in the positioning position;

Figure 2 shows a washing lever cut along its circumferential contour.

Clean water from a pipeline not shown in the figure (controlled by a solenoid valve not shown in the figure) or circulating water from a circulation pipeline not shown in the figure (controlled by a circulating pump not shown in the figure) ) into the detergent flushing pan 1, and the water in which the detergent placed in the flushing pan 1 flows into the outer surface of the washing drum 4 through the corrugated hose 2 and the inlet 8 on the shell side of the washing liquid tank 3. There are three washing levers 5 on the inner side of the surface of the washing drum, and the washing lever 5 has a water suction hole 6 on the shell side. The water drains into the washing drum (the so-called suction paddle).

Assume that the illustrated washing machine has a washing drum positioning device as described above. Parts belonging to this device are not intended to be described in detail here. The inlet 8 of the inlet pipe 2 is arranged on the shell of the washing liquid tank 3 in this way: when the drum 4 is turned to the so-called stop position by the drum positioning device, the cover of the washing drum that can be loaded on the shell side just stops at the clothes vertical Below the barrel 9, the inlet 8 is just opposite to the suction hole 6 of the driving rod 5 at this moment. In this way, the inflowing water and/or detergent can directly drop onto the laundry to be washed in the washing drum 4 through the input pipe 2 and the lever 5 corresponding to the inlet 8 .

If the washing drum is turned to a position where there is a lever 5 on the opposite side of the inlet 8 each time before the water is fed, most of the water and/or detergent to flow in will directly flow to the clothes in the inner cavity of the washing drum . Because there must be errors in this positioning of the washing drum, there may be a positional error of the water suction hole 6 in the driving lever 5 to the inlet 8 of the washing liquid tank 3 . If the clear distance of the inlet 8 measured in the direction of the outer contour is smaller than the clear distance of the suction hole 6, then this error is not harmful. In this way, the inlet 8 can in any case correspond to the suction hole 6, and water and/or detergent can be delivered directly to the laundry to be washed.

If the washing drum 4 has more than one driving rod 5 as described in Figure 4, so that the driving rods are distributed on the inner contour, then the washing drum positioning device can be arranged so that any driving rod 5 of the drum 4 can stop at the input On the opposite position of the inlet 8 of the pipe 2.

Claims (5)

1. Automatically controlled water and/or detergent adding device of drum type washing machine, its input pipe leads from the detergent flushing device to the inlet of the washing liquid tank and is aligned at least nearly horizontally and rotatably supported in the washing liquid tank The shell of the washing drum, the washing drum has at least three washing levers, the levers are hollow and have water suction holes on the side of the shell and drain holes to the inner cavity of the drum, and this device is effectively connected with a so-called washing drum positioning device, Through this positioning device, the washing drum can be stopped at a predetermined position, which is characterized in that as long as the positioning device stops the washing drum (4) to make the inlet (8) of the inlet pipe (2) on the washing liquid tank and a dial When the bar (5) is as accurate as possible relative, the device of adding water and/or detergent controlled by the washing machine through the input pipe (2) is just connected. 2. The device according to claim 1, characterized in that, in the washing machine with loading on the side of the casing, the stop position of the washing drum (4) is that the feeding port of the washing drum is opposite to the vertical drum (9) on the casing of the washing machine. Location. 3. The device according to claim 1 or 2, characterized in that the width of the inlet (8) of the input pipe (2) measured in the direction of rotation of the laundry drum is smaller than the water suction hole (6) of the driving rod (5). 4. The device according to any one of claims 1-2, characterized in that any shift lever (5) of the washing drum (4) can be stopped at a position opposite to the inlet (8) of the inlet pipe (2). 5. The device according to claim 3, characterized in that any lever (5) of the washing drum (4) can stop at a position opposite to the inlet (8) of the input pipe (2).

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