KR102686022B1 - Dishwasher with elevating structure - Google Patents

Abstract

The present invention relates to a dishwasher having a lifting and lowering structure. More specifically, the present invention relates to a dishwasher having a lifting and lowering structure, and more specifically, to a dishwasher having a structure in which the washing net containing the dishes rises and lowers, so that the user can place or retrieve the dishes without bending down. It relates to a dishwasher equipped with a lifting and lowering structure.
According to an embodiment of the present invention, a washing room (1) having a predetermined space sealed from the outside; A plurality of nozzles (2) provided on the inner peripheral surface of the washing chamber (1); a washing net (3) formed in a size smaller than the size of the washing chamber (1) to be accommodated within the washing chamber (1) and having a space therein for accommodating predetermined dishes; An upper cover (4) fixed to the upper part of the washing net (3) and provided to open and close the upper part of the washing chamber (1); An external cover (5) accommodating the washing chamber (1); A plurality of ball screws (6) fixed to the outside of the washing chamber (1); A screw shaft (7) connected to the ball screw (6); And a motor (not shown) fixed to the lower part of the upper cover 4 and rotating the screw shaft 7; the upper cover 4 is raised or lowered by rotation of the motor, thereby causing the upper cover ( Provided is a dishwasher having a lifting and lowering structure in which the washing net (3) fixed to 4) operates to raise or lower.

Description

Dishwasher with elevating structure}

The present invention relates to a dishwasher having a lifting and lowering structure. More specifically, the present invention relates to a dishwasher having a lifting and lowering structure, and more specifically, to a dishwasher having a structure in which the washing net containing the dishes rises and lowers, so that the user can place or retrieve the dishes without bending down. It relates to a dishwasher equipped with a lifting and lowering structure.

In general, a dishwasher is a device that automatically washes various dishes and dries them after washing. It is a dishwasher that uses ultrasonic waves, a spray type that sprays water to wash dishes, or a combination of the ultrasonic waves and the spray type. It can be divided into:

The spray dishwasher sprays high-temperature, high-pressure water to remove foreign substances from dishes using friction. It sprays washing water mixed with detergent and water from various directions, and then sprays rinsing water to rinse the detergent from the dishes. It has a structure.

An ultrasonic dishwasher removes foreign substances from dishes by generating ultrasonic vibrations in water, and has a structure that can easily clean foreign substances from the surfaces of dishes and agricultural products.

However, when conventional dishwashers are installed on the indoor floor, users have to bend down to place or retrieve dishes, so there are limitations such as back pain when using the dishwasher for a long period of time.

Domestic Patent No. 10-2313446 discloses “an ultrasonic dishwasher with a lifting function for the dish mounting portion.” Referring to FIG. 1 of the patent document, the dishwashers according to the prior art are installed with their bodies spaced apart from the floor by a predetermined height, and the overall height increases when the dish mounting portion is raised, making installation/use/maintenance easier. There was great difficulty in doing so.

The problem to be solved by the present invention is to improve the limitations of the conventional dishwasher as described above, by providing a device that allows the height of the dish mounting portion (washing net) to be adjusted while preventing the total height of the dishwasher from being higher than the height of a person. The aim is to provide a dishwasher with a lifting and lowering structure that can be miniaturized.

In order to improve the limitations of the conventional dishwasher as described above, the present invention includes a washing room having a predetermined space sealed from the outside; A plurality of nozzles provided on the inner peripheral surface of the washing chamber; a washing net formed in a size smaller than the size of the washing room to be accommodated inside the washing room, and having a space inside to accommodate predetermined dishes; An upper cover fixed to the upper part of the washing net and provided to open and close the upper part of the washing room; An external cover accommodating the washing chamber; a plurality of ball screws fixed to the outside of the washing chamber; A screw shaft connected to the ball screw; And a motor fixed to the lower part of the upper cover and rotating the screw shaft; including, the upper cover is raised or lowered by rotation of the motor, thereby operating to raise or lower the washing net fixed to the upper cover. A dishwasher equipped with a structure is provided.

In addition, the washing net includes: an external wire net with an open front and a predetermined mesh shape on the sides, back, and bottom; A plurality of rollers provided on the inner side of the external wire mesh; A rail connected to the roller and capable of horizontal movement through the front of the external wire mesh; And an inner wire mesh in which the rails are coupled to both ends to enable horizontal movement through the front of the outer wire mesh, and a predetermined concave surface is formed to accommodate predetermined dishes therein, wherein the internal wire mesh has a plurality of ends. It can be provided with

And, a lower packing provided along the upper circumferential surface of the washing chamber; and an upper packing disposed at a lower part of the upper cover to correspond to the lower packing, wherein the lower packing has a groove bent in a 'U' shape, and the upper packing has a 'T' shape. It can be configured to have a protrusion bent as such that the washing chamber is sealed from the outside when the upper cover is lowered to the bottom by engaging the protrusion of the upper packing with the groove of the lower packing.

In addition, a first drain hole formed at the bottom center of the washing chamber to discharge water to the outside; a discharge guide portion at a lower end of the washing chamber formed with a predetermined gradient from the outside toward the first drain hole; a second drain hole formed in the outer cover to correspond to the first drain hole at a lower position of the first drain hole; and a drain pipe extending from the first drain hole through the second drain hole to an external drain.

In addition, the nozzles are: arranged in a plurality of layers so that the nozzle layers radially arranged along the inner peripheral surface of the side wall of the washing room intersect each other, and the nozzle layer located at the top of the side wall is directed downward at a predetermined angle to face the center of the washing room. The nozzle layer located at the bottom of the side wall is arranged to face downward at a predetermined angle toward the center of the washing room, and the nozzle layer located on layers other than the top of the side wall and the bottom of the side wall is placed to face horizontally. It can further include a plurality of ultrasonic generators disposed on the bottom of the washing chamber, and can wash dishes accommodated in the washing net through water spray and ultrasonic generation.

According to an embodiment of the present invention, the height of the dish mounting portion (washing net) can be adjusted and the device can be miniaturized so that the total height of the dishwasher is not higher than the height of a person.

Figure 1 is a view showing the front of a dishwasher equipped with a lifting and lowering structure according to an embodiment of the present invention.
Figure 2 is a view showing the side of a dishwasher equipped with a lifting and lowering structure according to an embodiment of the present invention.

Hereinafter, various embodiments of this document are described with reference to the attached drawings. However, this is not intended to limit the technology described in this document to specific embodiments, and should be understood to include various modifications, equivalents, and/or alternatives to the embodiments of this document. . In connection with the description of the drawings, similar reference numbers may be used for similar components.

In this document, expressions such as "comprises" or "may include" refer to the presence of the corresponding feature (e.g., a numerical value, function, operation, or component, etc.) and do not exclude the presence of additional features. No.

In this document, expressions such as “A or B,” “at least one of A or/and B,” or “one or more of A or/and B” may include all possible combinations of the items listed together. . For example, “A or B,” “at least one of A and B,” or “at least one of A or B” includes (1) at least one A, (2) at least one B, or (3) it may refer to all cases including both at least one A and at least one B.

Expressions such as “first,” “second,” “first,” or “second,” used in this document can modify various components regardless of order and/or importance, and refer to one component. It is only used to distinguish from other components and does not limit the components. For example, a first user device and a second user device may represent different user devices regardless of order or importance. For example, a first component may be renamed a second component without departing from the scope of rights described in this document, and similarly, the second component may also be renamed to the first component.

A component (e.g., a first component) is “operatively or communicatively coupled with/to” or “connected to” another component (e.g., a second component). When "connected to" is mentioned, it should be understood that any component may be directly connected to the other component or may be connected through another component (eg, a third component).

Terms used in this document are merely used to describe specific embodiments and may not be intended to limit the scope of other embodiments. Singular expressions may include plural expressions, unless the context clearly dictates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the technical field described in this document. Among the terms used in this document, terms defined in general dictionaries may be interpreted to have the same or similar meaning as the meaning they have in the context of related technology, and unless clearly defined in this document, have an ideal or excessively formal meaning. It is not interpreted as In some cases, even terms defined in this document cannot be interpreted to exclude embodiments of this document.

Of course, various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims of the present invention, and these modifications do not reflect the technical idea or the technical spirit of the present invention. It should not be understood in isolation from the perspective.

The terms "top, bottom, front, side, rear, bottom, top, bottom, side wall, bottom", etc. used in the description of the invention are defined based on the drawings, and the shape and location of each component are limited by these terms. That is not the case.

According to an embodiment of the present invention, a washing room (1) having a predetermined space sealed from the outside; A plurality of nozzles (2) provided on the inner peripheral surface of the washing chamber (1); a washing net (3) formed to be smaller than the size of the washing chamber (1) to be accommodated within the washing chamber (1), and having a space therein for accommodating predetermined dishes; An upper cover (4) fixed to the upper part of the washing net (3) and provided to open and close the upper part of the washing chamber (1); An external cover (5) accommodating the washing chamber (1); A plurality of ball screws (6) fixed to the outside of the washing chamber (1); A screw shaft (7) connected to the ball screw (6); And a motor (not shown) fixed to the lower part of the upper cover 4 and rotating the screw shaft 7; the upper cover 4 is raised or lowered by rotation of the motor, thereby causing the upper cover ( Provided is a dishwasher having a lifting and lowering structure in which the washing net (3) fixed to 4) operates to raise or lower.

The washing chamber (1) can be fixed to the external cover (5). The outer cover 5 may be provided with a piping for supplying washing water or/and a cleaning agent to the nozzle 2 and a cleaning agent tank for storing the cleaning agent.

The user can operate the dishwasher by placing dishes on the washing net 3 while the washing net 3 is raised, and then lowering the washing net 3 (top cover 4) again.

The operation of the dishwasher (water spraying operation from the nozzle 2) is performed when a predetermined additional load (additional load due to dishes compared to the load of the original washing net 3) is detected on the washing net 3, and the upper cover ( When 4) is in close contact with the outer cover 5 (or/and the washing chamber 1), water can be automatically sprayed without any additional operation to provide user convenience.

When the user sets the dishwasher to a water saving mode, even if the top cover 4 is lowered, the dishwasher can be controlled to spray water only by operating a separate wash start button.

The space between the outer cover (5) and the washing chamber (1) may be filled with a certain soundproofing material to prevent noise and vibration caused by cleaning, and the washing chamber (1) heated by steam during steam cleaning. A predetermined insulating material may be filled to maintain the temperature.

The ball screw (6) can be fixedly coupled to the upper outside of the washing chamber (1), and the screw shaft (7) connected to the ball screw (6) rotates according to the rotation of the motor coupled to the bottom of the upper cover (4). As it rises and falls, the upper cover (4) coupled to the top rises and falls. At this time, the washing net 3 coupled to the lower part (bottom) of the upper cover 4 rises and lowers together with the upper cover 4, and this allows the washing net 3 to be raised and lowered.

It is preferable that one or more pairs of the ballscrews 6 are provided at both ends of the washing room 1 so that they can receive the load (output of the motor) symmetrically left and right. Through this, even when a lot of dishes are placed and the weight becomes heavy, the washing net (3) can be raised and lowered with a small amount of power, and it prevents clogging/breakdown due to imbalance between the washing net (3) and screw shaft (7). You can.

In addition, the washing net 3 includes: an external wire net 8 whose front is open and whose sides, backs, and bottoms are configured in a predetermined mesh shape; A plurality of rollers (9) provided on the inner side of the external wire mesh (8); A rail (10) connected to the roller (9) to enable horizontal movement through the front of the external wire mesh (8); And an inner wire mesh (11) in which the rails (10) are coupled at both ends so as to be horizontally movable through the front of the outer wire mesh (8) and has a predetermined concave surface to accommodate certain dishes therein. However, the internal wire mesh 11 may be provided in multiple stages.

The washing net 3 may have a wire mesh formed on the side and rear so that the upper end is coupled to the upper cover 4, and is woven neatly so that the water sprayed from the nozzle 2 does not collide to form a large hole. It is desirable to configure

The external wire mesh 8 can accommodate a plurality of internal wire meshes 11 connected in the form of a drawer. The received inner wire mesh (11) is connected to the outer wire mesh (8) through the roller (9) and rail (10), so that the user can draw the inner wire mesh (11) while the washing net (3) is raised. It is desirable that no wire mesh is formed on the front of the external wire mesh (8).

The inner wire mesh 11 is preferably configured to have a front, back, side, and bottom surface with an open top surface to prevent dishes, etc. from falling over, and has protrusions protruding upward between the bottom surfaces. It is possible to provide a stand on which a plate can be formed.

And, a lower packing provided along the upper circumferential surface of the washing chamber (1); and an upper packing disposed at the lower part of the upper cover 4 to correspond to the lower packing, wherein the lower packing has a groove bent in a 'U' shape, and the upper packing has: 'T It is provided with a protrusion bent in the shape of a 'shape, and the protrusion of the upper packing is coupled to the groove of the lower packing, so that the washing chamber 1 can be sealed from the outside when the upper cover 4 is lowered to the bottom.

The upper packing and lower packing may be made of a certain rubber material.

Since the upper packing and lower packing are formed in a T-shape and a U-shape, respectively, a predetermined sealed (watertight) structure can be formed even if the upper cover 4 is not completely adhered to the outer comer/washing chamber 1.

In the above description, the 'U' shape means a shape in which both ends protrude and the central part is depressed, and does not mean only a shape that is geometrically/physically identical to the 'U' shape. Additionally, the 'T' shape refers to a shape in which the central part protrudes and both ends have a lower height than the central part, and does not only mean a shape that is geometrically/physically identical to the 'T' shape.

In addition, a first drain hole formed at the bottom center of the washing chamber 1 to discharge water to the outside; a discharge guide portion formed at a predetermined gradient at the bottom of the washing chamber (1) from the outside toward the first drain hole; a second drain hole formed in the outer cover (5) to correspond to the first drain hole at a lower position of the first drain hole; and a drain pipe 13 extending from the first drain hole through the second drain hole to an external drain.

Through the above structure, water, detergent, foreign substances, etc. sprayed inside the washing chamber (1) can be discharged through the drain without leaking into the outside of the washing chamber (1) (inside the outer cover (5)).

Meanwhile, since the drain pipe 13, etc. is always fixed to the outer cover 5 regardless of the raising/lowering of the washing net 3, failure or damage due to repeated raising and lowering does not occur.

In addition, the nozzle 2 is arranged in multiple layers so that the nozzle 2 layers radially arranged along the inner peripheral surface of the side wall of the washing chamber 1 intersect each other, and the nozzle 2 layer located at the top of the side wall is It is arranged to face downward at a predetermined angle towards the center of the washing room (1), and the nozzle (2) layer located at the bottom of the side wall is arranged to face downward at a predetermined angle towards the center of the washing room (1). The nozzle layer (2) located on a layer other than the top of the side wall and the bottom of the side wall is arranged to face the horizontal direction, and a plurality of ultrasonic generators (12) are arranged on the bottom of the washing chamber (1). It further includes, Dishes contained in the washing net 3 can be washed by spraying water and generating ultrasonic waves.

Cleaning power can be significantly improved through the arrangement of the nozzle 2 and the ultrasonic generator 12 as described above.

Meanwhile, the nozzle (2) and the ultrasonic generator (12) are always fixed in the washing chamber (1) regardless of the raising/lowering of the washing net (3), so failure or damage due to repeated raising and lowering does not occur. No.

1: Washing room
2: nozzle
3: Washing net
4: Top cover
5: External cover
6: Ball screw
7: screw axis
8: External wire mesh
9: roller
10: rail
11: Internal wire mesh
12: Ultrasonic generator
13: Drain pipe

Claims (5)

a washing room having a predetermined space sealed from the outside;
A plurality of nozzles provided on the inner peripheral surface of the washing chamber;
It is formed in a size smaller than the size of the washing room to be accommodated inside the washing room, has a space inside to accommodate certain dishes, and is neatly woven so that the water sprayed from the nozzle does not collide to form a large hole. net;
An upper cover fixed to the upper part of the washing net and provided to open and close the upper part of the washing room;
An external cover accommodating the washing chamber;
a plurality of ball screws fixed to the outside of the washing chamber;
A screw shaft connected to the ball screw; and
Including a motor fixed to the lower part of the upper cover and rotating the screw shaft,
As the upper cover rises or falls due to the rotation of the motor, the washing net fixed to the upper cover operates to rise or fall,
The washing net is:
An external wire mesh with an open front and a predetermined mesh shape on the sides, back, and bottom;
A plurality of rollers provided on the inner side of the external wire mesh;
A rail connected to the roller and capable of horizontal movement through the front of the external wire mesh; and
The rail is coupled at both ends to enable horizontal movement through the front of the external wire mesh, a predetermined concave surface is formed to accommodate certain dishes therein, and is connected in the form of a drawer to be accommodated in the external wire mesh, and the wire mesh It is provided so that the user can draw it out while the washing net is raised through the front of the external wire mesh that is not formed, and has a front, rear, side and bottom surface to prevent the dish from falling over. A dishwasher with a lifting and lowering structure, including a plurality of internal wire meshes that are configured in an open form and have protrusions protruding upwards between the bottom surfaces to provide a stand for standing dishes. delete In claim 1,
Lower packing provided along the upper peripheral surface of the washing chamber; and
It includes; an upper packing disposed at the lower part of the upper cover to correspond to the lower packing,
The lower packing has: a groove bent in a 'U' shape,
The upper packing: has a protrusion bent in a 'T' shape,
A dishwasher equipped with a lifting and lowering structure configured to seal the washing chamber from the outside when the upper cover is lowered to the bottom by engaging the protrusion of the upper packing with the groove of the lower packing. In claim 1,
a first drain hole formed at the bottom center of the washing chamber to discharge water to the outside;
a discharge inducing portion formed at a lower end of the washing chamber with a predetermined gradient from the outside toward the first drain hole;
a second drain hole formed in the outer cover to correspond to the first drain hole at a lower position of the first drain hole; and
A dishwasher having a lifting and lowering structure, including; a drain pipe extending from the first drain hole through the second drain hole to an external drain hole. In claim 1,
The nozzle is:
Nozzle layers radially arranged along the inner peripheral surface of the side wall of the washing room are arranged in multiple layers so as to intersect each other,
The nozzle layer located at the top of the side wall is arranged to face downward at a predetermined angle toward the center of the washing room,
The nozzle layer located at the bottom of the side wall is arranged to face downward at a predetermined angle toward the center of the washing room.
The nozzle layer located on a layer other than the top of the side wall and the bottom of the side wall is arranged to face the horizontal direction,
Further including a plurality of ultrasonic generators disposed on the bottom of the washing chamber,
A dishwasher equipped with a lifting and lowering structure that washes dishes contained in a washing net through water spray and ultrasonic waves.

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