JPH0634783Y2 - Dishwasher Detergent Supply Device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is mounted on a dishwasher, and automatically sucks detergent from a resin tank and sends it to the dishwasher according to the operation of the dishwasher. The present invention relates to a detergent supply device that can be used.

(Prior art and its problems) Conventionally, as a device for supplying detergent to a dishwasher, a detergent tank 41 is installed in the washing tank 3 as shown in FIG. 3, and the detergent is stirred and dissolved therein. Nozzle that blows out hot water
Those with 40 have been proposed.

In this apparatus, first, a powder detergent is put into the quantitative detergent tank 41, hot water is jetted from the nozzle 40 in accordance with the operation of the dishwasher, and the necessary amount of overflow is supplied while stirring and dissolving the hot water, which is supplied to the wash water tank 3. It was Since the amount of detergent that can be added to this device is limited, in actual use the dishwasher must be stopped and replenished with detergent if the detergent runs out even when the dishwasher is in operation. It was annoying. In addition, there is a drawback that the detergent is often solidified to block the nozzle 40 and hot water is not jetted out. What was devised to solve this drawback is the detergent supply device of Japanese Patent Application No. 59-54665 filed by the present applicant. As shown in FIG. 4, this apparatus stores liquid detergent in a detergent tank 42, and pumps an appropriate amount of detergent to the washing water tank 3 by a pump 43 as needed during the washing process of the dishwasher. Although the above-mentioned drawbacks have been improved by this device, since the detergent tank 42 has a limited capacity, if the detergent runs out during the washing operation, the washing operation is interrupted and the upper lid (not shown) of the dishwasher body is opened. It is troublesome to open the cover 44 and remove the cover 44 to replenish the detergent tank 42 with the detergent.

Furthermore, as a device for solving the above-mentioned problems,
The one shown in the figure has been proposed. This device can automatically supply a required amount of detergent from the detergent container 45 placed on the floor to the dishwasher 1 by the pump 46 also placed separately, but has the following drawbacks.

Since the dishwasher 1, the pump 46, and the detergent container 45 are separately installed, the support of the suction hose 47 of the detergent is unstable, and it is troublesome to suck up the entire amount of the detergent in the detergent container 45.
Further, during the work, the suction hose 47 may be accidentally removed from the detergent container 45.

When the detergent container 45 is emptied and the suction hose 47 is transferred to another detergent container, the detergent slightly flows from the end of the suction hose 47 and soils the floor.

The pump 46 used in this device is generally a tube pump, but the tube used in the pump does not have sufficient durability, so that it has the trouble of having to replace it regularly.

(Means for Solving Problems) The present invention has been proposed in view of the above points, and an object thereof is to automatically remove a detergent from a resin tank according to the operation of the dishwasher, This is to supply detergent to the dishwasher, and the pump and detergent can be easily and securely attached to the resin tank, and the pump can be transferred to another resin tank cleanly and even more durable. The purpose of the present invention is to provide a detergent supply device having sufficient properties.

That is, in order to achieve the above-mentioned object, the present invention includes a dishwasher main body having a washing tank and a washing water tank for supplying washing water to the washing tank, and a transparent or semi-transparent device installed outside the dishwasher main body. A dish tank made of a transparent material, comprising a resin tank having means for supplying detergent to the cleaning tank, and a check valve provided in a detergent supply path from the resin tank to the cleaning tank The main point is the machine's detergent supply device.

(Operation) The present invention comprises a dishwasher body, a resin tank having a transparent or translucent material installed outside the dishwasher body, having a means for supplying detergent to the washing tank, and a non-return. Since it is composed of a valve, the detergent is automatically supplied to the dishwasher from the resin tank containing the detergent according to the operation of the dishwasher. The installation is simple and reliable, and when transferring to another resin tank, the check valve works so that the amount of dripping detergent is extremely small and clean. Furthermore, it has sufficient durability.

Further, since the resin tank containing the detergent is translucent or transparent, the consumption of the detergent can be visually confirmed from the outside.

(Embodiment) FIGS. 1 (a) to (c) and FIGS. 2 (a) to (c) show an embodiment of the present invention, in which 1 is a dishwasher and box-like cleaning. Tank 2 and wash water tank 3 arranged below it
It has and. 4 is installed on the inner bottom of the cleaning tank 2,
It is a discharge part that discharges detergent. A check valve 5 is connected to the discharge unit 4. A pump 6 is mounted on a resin tank 7 containing a detergent, and a check valve 5 is attached by a hose 8.
It is connected to the.

As shown in FIG. 1B, the discharge part 4 is closed at its upper surface with a cover plate 9a and has a detergent outlet 9b at its lower side surface.
And a hollow cylinder 9 placed on the inner bottom of the washing tank 2 of the dishwasher, and located on the center line of the cylinder 9 and having a discharge port 10a of the detergent on the upper side surface and an upper end. 1 on the lid plate 9a
The bottom plate 2 is fixed by 1 and the lower part penetrates the mounting hole 2b of the bottom plate 2a of the cleaning tank 2 and the flange 10b integrally provided in the middle part.
It is composed of a discharge pipe 10 screwed to a.

Further, the check valve 5 has a stepped portion 12a formed on the outer peripheral portion so as to partially fit in the hollow portion at the lower end of the discharge pipe 10 of the discharge portion 4, as shown in detail in FIG. Then, a small-diameter flow path 12b is formed in the central portion, and a ball receiving portion 12 having a funnel-shaped opening 12c formed in the upper portion of the flow path, and the ball receiving portion 12 is arranged above the ball receiving portion 12.
The ball receiving portion 10 is provided with a ball 13 having a diameter larger than the inner diameter of the channel 12b of the ball receiving portion and having a specific gravity larger than that of the detergent, for example, stainless steel, glass, etc. A connecting hose 8 having an inner diameter slightly smaller than the outer diameters of the discharge pipe 10 and the ball receiving portion 12 is press-fitted onto the outside of the portion 12, and the groove 10c formed on the outer periphery of the lower portion of the discharge pipe 10 is covered. The hose 8 is clamped from the outside by a C-shaped retaining ring 14 and is supported and fixed as a whole.

Further, the pump 6 is a connecting pipe connected to the lower end of the check valve 5 by a hose 8 as shown in FIGS.
A casing 19 in which 15 is integrally provided at an end portion of the upper surface and a suction port 16 is formed substantially in the center of the lower surface, a drive shaft 17 penetrating and rotatably supported at a substantially central portion of the upper surface of the casing 19, and the drive shaft 17
The impeller 18 fixed to the lower end of the casing 19 is rotatably arranged inside the casing 19, and the casing 19 is supported by an integral structure so as to be located on the inner bottom side of the resin tank 7 for detergent, and the drive shaft is disposed inside. A support cylinder 20 in which 17 is arranged substantially on the center line, and the support cylinder 20 is integrally fixed to the lower surface in the vertical direction, and at the same time, the drive shaft 17 is rotatably pierced and rotatably supported, and the hose 8 is pierced. A cap part 21 having a through hole 21a for supporting and integrally fitting a peripheral part 21b formed with a female screw to be screwed into the mouth part of the resin tank 7, and this cap part.
It is fixed to the upper part of 21 by a screw 22, is internally connected to a drive shaft 17 by a coupling 23, and is composed of a chassis 25 to which a motor 24 for rotating and driving the impeller 18 is attached, and a power cord 26 for the motor 24. .

In the dishwasher 1 of FIG. 1 (a), 30 is a lower washing nozzle, 31 is a rinsing nozzle, 32 is a control box, 33 is an operation panel, and 34 is a drain pipe.

To use the detergent supply device of the dishwasher configured as described above, simply attach the pump 6 to the resin tank 7 containing the detergent before operating the dishwasher. For each cleaning cycle, the motor 24 of the pump 6 is rotated for a certain time by the timer setting of the control box, and a certain amount of detergent is passed through the check valve 5 and the discharge part 4 to the cleaning tank 2
Is to be discharged to. The discharged detergent flows into the detergent water tank 3 and maintains the concentration of the detergent in the cleaning water tank 3 at an optimum level.

The above-mentioned cleaning cycle is, for example, one cycle of 60 seconds, and the cleaning water containing the detergent in the cleaning water tank 3 is sprayed onto the dishes through the lower cleaning nozzle 30 for 47 seconds. Next, after resting for 3 seconds, warm water is sprayed from the rinsing nozzle 31 to the tableware for 10 seconds to rinse, thereby completing one cycle.

Since hot water is supplied from the outside at the time of rinsing in this cleaning cycle, the concentration of the detergent in the cleaning water tank 3 is reduced. Therefore, in each cleaning cycle, the pump 6 is used to quantitatively replenish the detergent that is suitable for the thin amount, to maintain the detergent concentration of the cleaning water at an optimum level.

As another supply method, a concentration sensor (not shown) is attached inside the wash water tank 3, and when the concentration in the wash water tank 3 falls below a set value regardless of the wash cycle, the pump 6 is activated to wash the detergent. It can also be replenished.

In any of the above methods, it is only necessary to first set the pump in the resin tank for the detergent, so that the detergent is not replenished until the detergent in the resin tank is used up. In addition, it is easy to replace the resin tank, and at that time, even if the detergent is dropped from the pump, the floor is not polluted in a small amount by the action of the check valve. Also, the amount of detergent consumed inside the resin tank can be visually confirmed from the outside.

Since the pump of this embodiment has a spiral structure using an impeller, it has much higher durability than the conventional tube pump.

(Effect of the Invention) As described above, the present invention is a resin having a dishwasher main body and a transparent or translucent material installed outside the dishwasher main body and having a means for supplying detergent to the washing tank. Since it is composed of a tank and a check valve, the detergent is automatically supplied from the resin tank to the dishwasher in accordance with the operation of the dishwasher simply by setting the detergent first. It has the following effects.

Since the detergent supply means and the resin tank that is the detergent container are attachable, it is possible to suck up almost the entire amount of the detergent inside,
Also, it never happens that the detergent supply means, which is the suction section, is accidentally detached from the resin tank, which is the detergent container.

In addition, when the container becomes empty after the detergent has been used up and the container is transferred to another container, the check valve acts to prevent backflow of the detergent stored in the hose etc. from the suction port of the detergent supply means. The amount of detergent dripping is extremely small and does not stain the floor unlike the conventional method.

Since the resin tank containing the detergent is transparent or translucent, the consumption of the detergent can be visually confirmed from the outside, and the next detergent can be easily replenished.

The resin tank is separate from the dishwasher body,
It is convenient to carry and can be placed out of the way.

If the amount of detergent in the resin tank is low / empty, you can replace the resin tank prepared separately and filled with the detergent beforehand, and the work is easy and quick, and the cleaning efficiency is high. Does not fall. In this case,
Of course, the detergent may be supplied to the original tank.

[Brief description of drawings]

1 (a) to (c) and FIGS. 2 (a) to (c) show an embodiment of the present invention, and FIG. 1 (a) is an overall view of the embodiment,
FIG. 2B is an enlarged cross-sectional view of the discharge part, FIG. 1C is an enlarged cross-sectional view of the check valve, FIG. 2A is a cross-sectional view of a pump that is a means for supplying detergent, and FIG. (B) is a side view in which a part of the pump is also cut out, FIG. 2 (c) is a bottom view of FIG. 2 (a), and FIGS. 3 to 5 show conventional examples. 1 ... Dishwasher, 2 ... Wash tank, 3 ... Wash water tank, 4 ... Discharge part, 5 ... Check valve, 6 ... Pump, 7 ...
… Resin tank, 8… Hose, 9… Cylindrical body, 9a… Lid plate, 9b… Outflow port, 10… Discharge pipe, 10a… Discharge port, 12
...... Ball receiving part, 12b ...... Flow path, 13 ...... Ball, 15 ...... Connection pipe, 16 …… Suction port, 17 …… Drive shaft, 18 …… Impeller, 19
...... Casing, 20 ...... Support tube, 21 ...... Cap section, 21
a: through hole, 21b: peripheral edge, 23: coupling, 24 ...
… Motor, 25… Chassis

Claims (1)

[Scope of utility model registration request] 1. A dishwasher main body having a washing tank and a washing water tank for supplying washing water to the washing tank, and a transparent or translucent material provided outside the dishwasher main body. A detergent supply device for a dishwasher, comprising: a resin tank having means for supplying detergent to the cleaning tank, and a check valve provided in a detergent supply path from the resin tank to the cleaning tank.