JPH0616588Y2 - Dishwasher - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Use) The present invention relates to a dishwasher and the like, and more particularly to a dishwasher for washing various types of dishes such as large, small and light dishes.

(Prior Art) Conventionally, the above-mentioned washing machine for dishes and the like has been disclosed in, for example, SAIKAI 57-6
It is disclosed in Japanese Patent No. 7662. In the dishwasher disclosed in this publication, when washing small and light dishes that may be blown off by high-pressure jet water from the jet nozzle, the dishes are suppressed by a predetermined dishholding It was prevented from being damaged by the scattering of.

The dishwasher disclosed in Japanese Utility Model Laid-Open No. 57-87654 is provided with upper and lower jetting bodies and upper and lower two-stage dish baskets, and both jetting bodies are connected by a connecting pipe through an opening / closing valve. If there are many items to be washed, store the dishes in the upper and lower two-stage dish baskets and open the on-off valve to wash them. If there are few items to be washed, store the dishes only in the lower dish basket and close the on-off valve. It is in the state and washed. As a result, especially when the amount of the object to be cleaned is small, the cleaning power of the lower jet body is increased to shorten the cleaning time and improve the cleaning efficiency.

(Problems to be solved by the invention) However, in the former dishwasher, when cleaning large and small objects to be cleaned at the same time, it is not enough to suppress small objects, and damage due to scattering of small objects may occur. Not enough to prevent. In addition, when drying after washing, dripping water was left behind by holding down the dishes to prevent the drying.

The latter dishwasher does not prevent the dishes from scattering by opening and closing the valve, and especially when the valve is closed, the washing power is further increased compared to when it is opened and the dishes are damaged due to scattering. Is a problem.

The object of the present invention is to solve the above problems by adjusting the amount of water supplied from the cleaning pump to each injection nozzle when cleaning a large and heavy object to be cleaned and then a small and light object to be cleaned. As a result, it is an object of the present invention to provide a dishwasher or the like washing machine capable of preventing scattering of objects to be washed such as dishes due to the pressure of water jetted from the jet nozzle.

(Means for Solving the Problems) In solving the above problems, the present invention stores and holds an object to be cleaned such as tableware at a predetermined position, and supplies a predetermined amount of water to supply water from below and above the object to be cleaned. A cleaning tank having a lower cleaning spray nozzle for spraying and an upper cleaning spray nozzle, and a tank for storing a predetermined amount of water at the bottom, and a cleaning pump for pumping the water supplied to the tank and discharging it from a discharge port. And a washing machine for dishes, etc., which has a branch portion at an intermediate portion and a discharge pipe of the washing pump and a supply pipe connected to each of the spray nozzles, in which the spray nozzle for cleaning lower than the branch portion of the supply pipe A flow control valve was installed in the. In this case, it is desirable that the valve can be operated by a lever provided on the front wall of the cleaning tank.

(Operation and effect) In the dishwasher having the above-mentioned configuration, when using the dishwasher, a predetermined amount of water and detergent are put in the tank to store and hold the dishwasher or the like at a predetermined position in the washing tank. The drive of the washing pump is started with the open / close lid closed. As a result, the water containing the detergent in the tank is pumped up and supplied to the lower cleaning spray nozzle and the upper cleaning spray nozzle respectively, and the sprayed water from each spray nozzle into the cleaning chamber cleans the objects to be cleaned such as dishes. Be seen. By the way, in the case of cleaning a large and heavy object to be cleaned and then a small and light object to be cleaned, the opening of the flow rate adjusting valve provided on the lower cleaning injection nozzle side of the branch portion of the supply pipe is adjusted. As a result, the amount of water supplied from the cleaning pump to the lower cleaning spray nozzle can be adjusted, and the spray water pressure of the spray nozzle can be freely changed. As a result, inconveniences of scattering and damaging the small or light objects to be cleaned can be avoided. Further, when the injection water pressure of the lower cleaning injection nozzle is reduced by the flow rate adjusting valve, the amount of water supplied to the upper cleaning injection nozzle increases, so that the decrease in cleaning power can be minimized. In addition, when the flow rate adjusting valve can be operated by a lever provided on the front wall of the cleaning tank, the operability of the flow rate adjusting valve is good and can be easily adjusted.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. A dishwasher 10 according to the present invention, the overall structure of which is schematically shown in FIG. 1, is provided with a box-shaped lid 13 on top of a washing tank 11.
It is configured with. The cleaning chamber 11 and the box-shaped lid 13 form a cleaning chamber R. The lid 13 has a handle 1 on the front.
3a is provided, and is arranged so as to be slidable in the vertical direction along the support member 14 provided upright on the left and right ends of the back surface of the washing machine 10.
A tank 12 is provided on a part of a bottom wall 11a of the cleaning bowl 11 so as to project downward, and a filter 20 is detachably attached to the boundary between the two. A cleaning pump 16 is connected to the lower side wall of the tank 12 through a water absorption pipe P ₀ , a supply pipe P1 is connected to the discharge side of the cleaning pump and extends, and the pipe P1 is supplied midway to the supply pipe P2. , P3, respectively, projecting upward through the bottom wall 11a of the cleaning bowl 11, and the pipe P2 is attached to the lower cleaning injection nozzle 15b. Further, the supply pipe P3 is bent at a right angle in the vicinity of the upper wall of the lid 13 and further bent downward at an extension position of the supply pipe P2, and attached to the upper cleaning injection nozzle 15a. A flow rate adjusting valve 17 is inserted in the middle portion of the supply pipe P2. The flow rate adjusting valve 17 is
Cylindrical valve case 16a and valve case 16a with a rod-shaped protrusion at one end at a rotationally symmetrical position in the valve case
A valve body 1 which is fitted to an inner wall and is rotatably fixed to a shaft 16c which extends through the valve case 16a at the other end and is led out of the valve case 16a by a screw or the like.
6b and. The shaft 16c is mounted on the front wall of the cleaning tank 11 with a lever 23 at the tip thereof by means of screws or the like.
Valve body 16 through shaft 16c by the operation of 3
Rotate and adjust the opening of b. A seal member 16d is provided at a portion of the valve body 16b that penetrates the shaft 16c to prevent water leakage. Further, in the present embodiment, the diameter of the valve body 16b is smaller than the inner diameter of the valve case 16a,
The amount of circulating water when the valve is closed (the valve body 16b is in the vertical position with respect to the supply pipe P2) is the valve open (the valve body 1).
6b is a 1/2 to 1/3 of the circulating water amount in the horizontal position with respect to the supply pipe P2).
This is for the purpose of the present invention that the cleaning spray nozzles 15a, 15a
This is because the amount of water supply is increased or decreased, rather than stopping the supply of washing water to b. As a result of adopting such a valve, the load on the valve is reduced, and the valve structure is simple, resulting in failure. It is difficult and the design of the seal part is easy, and it is suitable as a part for a simple dishwasher. However, the above does not impede the use of the completely openable valve, and the valve structure is not limited to the above type. The cleaning spray nozzles 15a and 15b have a large number of spray ports 15c, and when a predetermined amount of water is supplied therein, high-pressure clean water is sprayed from the spray ports 15c into the cleaning chamber R to perform a cleaning operation. . Above the lower cleaning jet nozzle 15b, the object to be cleaned 1 such as tableware
A storage basket 18 for mounting and holding 9 is detachably installed, and the storage basket 18 is put into and taken out of the cleaning tank 11 when the box-shaped lid 13 is moved upward and opened. An overflow pipe 21 is provided in the tank 12 for discharging water that has reached a certain level or higher to the outside of the machine. Further, a drainage port 24 having a drainage valve 24 a for discharging cleaning water and the like out of the tank 12 is provided at the bottom of the tank 12.

A rinsing tank 30 that is supplied with water from a water supply pipe 31 and holds a constant water level by a ball tap 30a attached to the inner wall is installed outside the machine, and a rinsing pump is provided from a lower side wall of the tank via a water absorption pipe P4. Connect to 32. Supply pipe P connected to the discharge side of the pump 32
5 is projected upward through the bottom wall 11a of the washing bowl 11,
In the cleaning chamber R, the supply pipes P6 and P7 are branched and extended upward and downward, respectively, and the box-shaped lid 13 and the cleaning bowl bottom wall 1 are provided.
1a is bent at a right angle toward the center of the cleaning bowl 11 and further bent downward and upward at the center so as to be substantially parallel to and below the cleaning jet nozzle 15a.
Rinsing jet nozzle 3 installed substantially parallel to 5b
Attach to 3a and 33b. The injection nozzles 33a, 33
b has a large number of spray ports 33c, and when a predetermined amount of water is supplied therein, high-pressure rinse water is sprayed from the spray ports 33c into the cleaning chamber R to perform a rinse operation.

It should be noted that the front panel of the cleaning bowl 11 has drive motors 16a, 32 for driving the cleaning pump 16 and the rinse pump 32.
An operation switch 22 (wiring not shown) for supplying electric power to a is provided.

The operation of the dishwasher 10 configured as described above will be described. When used, washing water is supplied into the tank 12 of the washing tank 11 together with a predetermined amount of detergent until a predetermined water level is reached. May be carried out manually from the upper part of the above, or a water supply device may be separately provided on the peripheral wall of the cleaning tank 11), and the object to be cleaned 19 such as dishes is placed in the storage basket 18 as shown in the drawing. The box-shaped lid 13 is closed in the held state. Then, depending on the size of the object to be cleaned 19, the cleaning pump 16 lowers the spray nozzle 15 for lower cleaning.
To adjust the amount of water supplied to a, the lever 23 provided on the front wall of the cleaning tank is operated to adjust the flow rate adjusting valve 17 to a desired opening. The opening of the valve 17 can be adjusted during the cleaning operation, if necessary. Next, when the operation switch 22 is operated to start driving the cleaning pump motor 16a, the cleaning pump 16 sucks the cleaning water through the water absorption pipe P ₀ and supplies the cleaning water to the supply pipes P2 and P3 branched through the supply pipe P1. Discharge cleaning spray nozzles 15a, 15b
Then, the cleaning water is injected into the cleaning chamber R through the ejection port 15c. At this time, since the flow rate adjusting valve 17 is held at a predetermined opening, the amount of water passing through the supply pipe P2 is limited, and as a result, the jet water pressure from the lower cleaning jet nozzle 15b is reduced. On the other hand, the upper cleaning jet nozzle 15a
Is sprayed with higher pressure washing water by the action of the flow rate adjusting valve 17, but the washing power of the combined jet nozzles 15a and 15b is slightly changed by the adjustment of the flow rate adjusting valve 17, so that the reduction amount of the washing power is necessary. It can be compensated by adjusting the washing time accordingly. In this way, since the spray pressure of the lower cleaning spray nozzle 15b is properly adjusted, the object to be cleaned 19 will not be scattered and damaged by the sprayed water, and will be appropriate according to the weight of the object to be cleaned 19. Can be washed.

Thus, after the predetermined cleaning time, the operation switch 22
By this operation, the cleaning pump motor 16a is stopped to end the cleaning process with the detergent, and the rinsing pump motor 32a is activated to shift to the rinsing process. The rinsing pump 32 sucks the clean water in the rinsing tank 30 through the water absorption pipe P4, discharges it to the supply pipes P6 and P7 branched via the supply pipe P5, and sends it to the rinsing nozzles 33a and 33b under pressure. Rinse water is sprayed from the spray port 33c into the cleaning chamber R to rinse the object to be cleaned 19. Then, the rinse water soiled with detergent or the like falls into the tank 12 to raise the water level, but when the water level reaches a certain level, it is discharged to the outside by the overflow pipe 21 provided in the tank, so the water level is kept constant. . After the operation for a predetermined time, the rinsing process is completed by operating the operation switch 22 to stop the rinsing pump motor 32a.

In the above embodiment, the dishwasher in which the washing system and the rinsing system are separated is described, but it is needless to say that the present invention is applied to a dishwashing machine in which washing and rinsing are performed in the same system. You can

[Brief description of drawings]

FIG. 1 is a perspective view showing an outer shape of a dishwasher according to the present invention, FIG. 2 is a schematic sectional view of the dishwasher, and FIG. 3 is a cross section of a flow rate adjusting valve which is a main part of the present invention. It is a figure. Explanation of reference numerals 11 ... Cleaning tank, 12 ... Tank, 15a, 15b ...
Cleaning the injection nozzle, 16 ...... washing pump, 17 ...... flow regulating valve, P ₀ ...... water pipes, P1, P2, P3 ...
… Supply pipe, 23 …… Lever.

Claims (2)

[Scope of utility model registration request] 1. A lower cleaning spray nozzle and an upper cleaning spray nozzle for storing and holding an object to be cleaned such as tableware at a predetermined position and spraying water from below and above the object to be cleaned by supplying a predetermined amount of water. A cleaning tank provided with a tank for storing a predetermined amount of water at the bottom, a cleaning pump for pumping the water supplied to the tank and discharging it from the discharge port, and a cleaning pump having a branch portion in the middle part In a dishwasher or the like having a discharge pipe and a supply pipe connected to each of the jet nozzles, and the like, wherein a flow rate adjusting valve is provided on the lower washing jet nozzle side from the branch portion of the supply pipe. washing machine. 2. The dishwasher according to claim 1, wherein the flow rate adjusting valve is operable by a lever provided on a front wall of the washing tank.