JPH02140126A - Dish washer - Google Patents

Abstract

PURPOSE:To improve workability to put-in and out dishes and to satisfactorily spray washing water to the dishes in a housing basket by housing a reflecting and diffusing means in a guide cylinder so as to be protruded upward, ejecting a part of the washing water to the reflecting and diffusing means and moving the reflecting and diffusing means upward by ejecting pressure. CONSTITUTION:The washing water ejected from an ejecting beam nozzle 19a hits a reflecting and diffusing means 30 and pushes up the reflecting and diffusing means 30. Then, the means 30 is protruded from a guide cylinder 22 and a ring body 31 is engaged to an inner directional flange 22b of the guide cylinder 22, stopped and held. Ejecting water flow ejected from the ejecting beam nozzle 19a with the spreading angle of theta collides a recessed body 35 in the lower direction of the reflecting and diffusing means 30, a recessed body 34 in a center and further a recessed body 33 in an upper direction. Then, the water flow is reflected and diffused to an oblique lower direction and goes to reflected and diffused water flow, which wholly hits dishes 21 from an upper direction. Then, the dishes 21 are washed. On the other hand, ejecting water flow to be ejected from an ejecting nozzle 19b hits the dishes 21 from a lower direction and washes the dishes 21. Then, an ejecting pipe 19 is turned in one direction by reaction and the water flow wholly hits the dishes 21.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dishwasher, and in particular, a dishwasher is provided with a fountain pipe equipped with a spray nozzle that sprays washing water upward at the bottom of a washing chamber. The present invention also relates to a dishwasher in which a storage basket for storing dishes is provided above the fountain pipe.

[Prior art]

Various types of dishwashers of this type have been proposed in the past, and one type of dishwasher is to have a pivotable fountain pipe located below the storage basket, and to place the fountain pipe close to the center of rotation of the fountain pipe. A reflective diffuser plate (for example, Utility Model Publication No. 50-105266
(as shown in Japanese Utility Model Publication No. 18628) or a reflective diffuser plate fixed to a storage basket (for example, as shown in Japanese Utility Model Publication No. 18628/1983), the reflected and diffused water flow and the water jetted out from the fountain pipe are reflected and diffused. There is a dishwasher that uses a jet of water to wash dishes in the storage rack.

[Problem to be solved by the invention]

By the way, in a dishwasher in which a reflection diffuser plate is arranged on the upper inner wall of the washing chamber (for example, the one shown in Utility Model Application Publication No. 105266/1983), the distance from the jet beam nozzle to the reflection diffuser plate is relatively small. A large pump is required as a cleaning pump to inject cleaning water from the long jet beam nozzle to the reflective diffuser plate, and the cleaning water from the jet beam nozzle collides with the reflective diffuser plate, causing damage to the upper inner wall of the cleaning chamber. It vibrates, which can cause a lot of noise. Furthermore, the reflective and diffuser plate becomes a hindrance, making it difficult to put in large dishes, and making it impossible to effectively utilize the upper space of the washing chamber.

On the other hand, in a dishwasher with a reflective diffuser fixed to the storage basket (for example, Utility Model Publication No. 18628/1983), if the reflective diffuser is installed at a low position, the reflective diffuser will be difficult to remove when taking dishes into and out of the storage basket. Although it does not get in the way, the washing water from the injection beam nozzle cannot be sprayed well on the dishes in the storage room, and conversely, if the reflective diffuser plate is installed at a high position, the washing water from the injection beam nozzle cannot be sprayed properly on the dishes in the storage room. However, the reflective diffuser plate gets in the way when taking the tableware into and out of the store.
There is a problem in that the tableware hits the reflection-diffusion plate during this operation, damaging the reflection-diffusion plate and the tableware.

The present invention was made to address the various problems described above, and effectively utilizes the limited volume in the washing chamber, improves the workability of loading and unloading dishes, and reduces the amount of washing water from the spray beam nozzle. The purpose of the present invention is to provide a dishwasher that can effectively spray the dishes stored in the company and that can be manufactured at a low cost.

[Means to solve the problem]

In order to achieve the above object, in the dishwasher according to the present invention, a fountain pipe equipped with a spray nozzle that sprays washing water upward is provided at the bottom of the washing chamber, and the dishes are placed above the fountain pipe. In a dishwasher equipped with a storage basket for storing, a guide tube of a predetermined height is erected on the storage basket,
A reflection and diffusion means for reflecting and diffusing the cleaning water is housed in this guide cylinder so as to be able to project upwardly, and a part of the cleaning water jetted from the injection nozzle is injected into the reflection and diffusion means, and the jetting pressure causes the reflection and diffusion to be reflected. The diffusion means was configured to move upward to a predetermined position.

[Function and effect of the invention]

In the dishwasher according to the present invention, when washing water is not jetted from the spray nozzle, the reflection and diffusion means is housed in the guide cylinder, so the reflection and diffusion means does not get in the way when putting in and taking out dishes, making the work easier. can be done.

In addition, when washing water is sprayed from the spray nozzle when washing dishes, a portion of the water is sprayed onto the reflection and diffusion means, and the spray pressure causes the reflection and diffusion means to move upward to a predetermined position. It is possible to effectively spray the dishes in the storage space from above, and the reflected and diffused water flow and the jet water flow jetted upward from the spray nozzle allow the dishes in the storage space to be accurately and efficiently washed from both above and below. .

Further, in the dishwasher according to the present invention, since the storage basket is provided with a guide tube and a reflection/diffusion means,
The structure is simple, there is no need to increase the size of the cleaning pump, and it can be manufactured at low cost, the cleaning chamber can be used effectively, and maintenance can be easily performed.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 schematically shows a dishwasher according to the present invention, in which a washing chamber 12 is formed inside an outer frame 11, and this washing chamber 12 has a front opening door 13.
It is said that it can be opened and closed. Further, a washing water tank 14 and a washing pump 15 are arranged below the washing chamber 12, and the washing water in the washing water tank 14 is sucked and pressurized by the washing pump 15 during the washing process of the dishwasher. The liquid is then discharged into a discharge pipe 16. Note that the washing water is supplied from the outside through a water supply pipe 17 (opened and closed by a solenoid valve 18) arranged at the upper part of the washing chamber 12 at the start of the washing process of the dishwasher, and When the process is completed, it is discharged to the outside through a drain pipe (not shown).

A fountain pipe 19 is rotatably attached to the upper end of the discharge pipe 16, and above the fountain pipe 19, one injection beam nozzle 19a and a large number of injection nozzles 19b are provided. The spray beam nozzle 19a is provided at the center of rotation and sprays a portion of the cleaning water pumped into the fountain pipe 19 upward. Each injection nozzle 19b is
They are provided on both sides of the jet beam nozzle 19a, and jet out part of the cleaning water forced into the fountain pipe 19 upwards, and the reaction force causes the fountain pipe 19 to pivot in one direction.

The storage capacity 20 is arranged above the fountain pipe 19 and can accommodate a required amount of tableware 21. As shown in detail in FIGS. 3 to 5, this storage capacity 20 is a net frame body formed of thin wires with an upward opening, and has a bottom portion 20a and a peripheral rising portion 20b. A pair of large and small annular frames 20C and 20d are provided in the center of 20a,
Using these annular frames 20c and 20d, the reflection and diffusion means 3
A guide tube 22 for accommodating 0 is attached by a port 23 and a nut 24 (see FIG. 1).

As shown in FIGS. 1 to 3 and 7, the guide tube 22 has a cylindrical portion 22a with an inner diameter of D6 at a predetermined height (approximately the same height as the peripheral rising portion 20b of the storage capacity 20). It is composed of an inward flange 22b formed at the upper end of this cylindrical portion 22a and having an inner diameter of D4, and an outward flange 22c formed at the lower end of the cylindrical portion 22a, and a bolt insertion hole 22d is provided in the outward flange 22C. It is being

As shown in FIGS. 1, 2, and 6, the reflection/diffusion means 30 is composed of a ring body 31, a pair of support columns 32, and three concave bodies 33, 34, and 35. . The ring body 31 has an outer diameter D5 that is smaller than the inner diameter D6 of the cylindrical portion 22a of the guide tube 22 and a larger diameter D5 than the inner diameter D4 of the inward flange 22b of the guide tube 22, and has an inner diameter smaller than the inner diameter D4 of the inward flange 22b of the guide tube 22. D3, and can come into contact with the inward flange 22b of the guide tube 22 and a portion 20e of the bottom 20a of the storage capacity 20.

Each strut 32 is fixed at its lower end to the inner periphery of the ring body 31 and supports a concave body 33, 34, 35. The upper concave body 33 is a disk having an outer diameter D3, and is fixed to the upper ends of both supports 32 with the concave surface facing downward. The central concave body 34 is a disk with an outer diameter D3, and is fixed to both supports 32 below the upper concave body 33 with the concave surface facing downward, and a hole 34a with a hole diameter D1 is provided in the center. There is. The lower concave body 35 is a disk with an outer diameter D3, and is fixed to both supports 32 below the central concave body 34 with the concave surface facing downward. A hole 35a having a hole diameter D2 is provided. In this embodiment, when the reflection and diffusion means 30 is housed in the guide tube 22, the upper end of the reflection and diffusion means 30 protrudes slightly. is the best.

In the dishwasher of this embodiment configured as described above, when the door 13 is opened and the tableware 21 is stored in the storage capacity 20, or when the tableware 21 in the storage capacity 20 is taken out,
As shown in FIG.
The reflection and diffusion means 30 does not get in the way when putting in and taking out the
This work can be done easily. In addition, storage capacity 20
Since the guide ItJ 22 and the reflection/diffusion means 30 are provided in the cleaning pump, the structure is simple, there is no need to increase the size of the cleaning pump 15, and the cleaning pump 15 can be manufactured at low cost, and the cleaning chamber 12 can be used effectively. Also, maintenance can be easily performed.

In addition, in this dishwasher, the storage capacity 20 includes 2 dishes.
1 is set and operation is started, the solenoid valve 18 is opened for a predetermined period of time at the start of the cleaning process, and the cleaning water is supplied to the supply pipe 1.
The required amount is supplied from 7, and the cleaning pump 1 is supplied during the cleaning process.
5 operates the pump, and the cleaning water in the cleaning tank 14 is jetted upward from the jet beam nozzle 19a and the jet nozzle 19b of the jet pipe 19 via the discharge pipe 16, as shown in FIG.

The cleaning water jetted from the jet beam nozzle 19a hits the reflection and diffusion means 30, and the pressure caused by the jet stream pushes up the reflection and diffusion means 30. For this reason, the reflection diffusion means 3
0 protrudes from the guide tube 22 as shown in FIG. 2, and is stopped and held by the ring body 31 engaging with the inward flange 22b of the guide tube 22. Therefore, a part of the water jet ejected from the jet beam nozzle 19a with a spread of θ, as shown by the dashed line in FIG. A part of the jet water flow that has passed through the hole 35a of the concave body 35 collides with the central concave body 34 and is reflected and diffused diagonally downward, and the jet water flow that has passed through the hole 34a of the concave body 34 is further reflected and diffused. The water collides with the upper concave body 33 and is reflected and diffused diagonally downward, becoming a reflected and diffused water flow that evenly hits the entire tableware 21 from above, washing the tableware 21. On the other hand, the water jet ejected from the jet nozzle 19b hits the tableware 21 from below and cleans the tableware 21, and as a reaction causes the water fountain pipe 19 to rotate in one direction, it evenly hits the whole tableware 21. As a result, the tableware 2 in the storage basket 20
1 are all cleaned accurately and efficiently from both the top and bottom.

Thus, when the washing of the tableware 21 is completed, the washing pump 1
5 stops and the fountain pipe 19 stops, and the reflecting/diffusing means 30 falls due to its own weight and is automatically accommodated in the guide tube 22.

[Modified example]

In the above embodiment, the reflection and diffusion means 30 provided with three concave bodies 33, 34, and 35 was used as the reflection and diffusion means housed in the guide tube 22, but in carrying out the present invention, the reflection and diffusion means 30 having three concave bodies 33, 34, and It is possible to make changes such as using a flat plate instead or increasing or decreasing the number of concave bodies. Further, in the above embodiment, the present invention was applied to a dishwasher in which the fountain pipe disposed at the bottom of the washing chamber 12 rotates, but the present invention is also applicable to a type of dishwasher in which the fountain pipe does not rotate. It is possible to implement it. Furthermore, in the above embodiment, one reflective diffusion means 30 is provided in the center of the storage basket 20, and the injection beam nozzle 19a is correspondingly provided. In response to this, a plurality of reflecting and diffusing means are arranged on the same circumference so that the water jet from the jet beam nozzle hits each of these reflecting and diffusing means, and the water fountain pipe turns due to its reaction. (In this case, it is also possible to implement one of the injection nozzles 19a of the above embodiment as an injection beam nozzle).

[Brief explanation of the drawing]

Fig. 1 is a vertical side view showing an embodiment of the dishwasher according to the present invention, Fig. 2 is an explanatory diagram of the same operation, and Fig. 3 shows the storage basket shown in Fig. 1 and the guide tube assembled thereto. FIG. 4 is a perspective view showing only the storage basket; FIG. 5 is an enlarged perspective view of the same portion; FIG. 6 is an enlarged perspective view of the reflection and diffusion means;
FIG. 7 is an enlarged perspective view of the guide tube. Explanation of symbols 12...Cleaning room, 19...Fountain pipe, 19a...
- Spray nozzle, 19b... Spray beam nozzle (spray nozzle), 20... Storage basket, 21... Tableware, 22...
- Guide tube, 30...Reflection and diffusion means.

Claims (1)

[Claims] A dishwasher in which a fountain pipe equipped with a spray nozzle that sprays washing water upward is disposed at the bottom of the washing chamber, and a storage basket for storing dishes is disposed above the fountain pipe. A guide cylinder of a predetermined height is installed in the guide cylinder, and a reflection and diffusion means for reflecting and diffusing the cleaning water is accommodated in the guide cylinder so as to be able to protrude upwards. A dishwasher characterized in that the reflection/diffusion means is configured to be moved upward to a predetermined position by the spray pressure.