KR20060136111A - Dish washer - Google Patents

Abstract

The present invention relates to a dishwasher, and more particularly, to a dishwasher having an injection hole to which a strong rotational force is added to the water sprayed and expanded in the spraying range.

 It is an object of the present invention to provide a dishwasher in which washing water is widely sprayed in the washing chamber and the nozzle is provided with a strong force applied to the washing water.

In order to achieve the above object, a dishwasher according to the present invention includes a main body, a washing chamber provided inside the main body, a rotating nozzle provided with a propeller in a nozzle hole so as to rotate by water flow provided in the washing chamber, and the rotating nozzle. It characterized in that it comprises a coupling member for supporting to be rotatable.

Description

Dishwasher {Dish washer}

       1 is a side cross-sectional view showing the structure of a dish washer according to the present invention.

       Figure 2 is an exploded perspective view showing a fixed structure of the rotating nozzle and the coupling member.

       3 is a plan view of a nozzle bar showing a state in which a rotating nozzle and a coupling member are installed.

       4 is a cross-sectional view showing the internal structure of the rotating nozzle and the coupling member in FIG.

* Description of symbols on the main parts of the drawings *

       10: main body, 11: washing chamber,

       16: circulation pump, 23: coupling member,

       24: rotating nozzle, 25: nozzle bar,

       30: door,

The present invention relates to a dishwasher, and more particularly, to a dishwasher having an injection hole to which a strong rotational force is added to the water sprayed and expanded in the spraying range.

In general, the dishwasher strongly injects the washing water in which the detergent is dissolved in the dish to remove the food attached to the dish using the kinetic energy of the washing water sprayed along with the surfactant activity. Device.

The dishwasher includes a main body having a washing chamber formed therein and a door that is rotatably installed on a front surface of the main body to open and close the washing chamber. In addition, the dishwasher includes a dish basket installed in the washing chamber for storing the dishes, a spray nozzle for spraying the washing water together with the detergent into the washing chamber, and a circulating pump for supplying the high pressure washing water to the spray nozzle.

A plurality of spray nozzles for spraying the washing water are provided at a predetermined interval on a nozzle bar that rotates with respect to the central axis, and the spray nozzles consist of spray holes penetrating the inside and outside of the nozzle bar.

Such dishwashers generally include a soaking process for soaking food in water and a washing process in which a full-scale washing is performed, and it takes considerable time to perform all washing processes.

Therefore, as an index for evaluating the performance of the dishwasher, the washing time together with the washing rate is an important factor, and the washing rate and the washing time depend on the water pressure and the spray angle of the sprayed water.

The conventional dishwasher rotates the nozzle bar in which the injection hole is installed in order to change the direction of the washing water sprayed from the spray hole and to add rotational force to the washing water.

However, when viewed based on the injection hole, the washing water is sprayed only in one direction, and there is no structure for guiding the spraying direction of the washing water to be changed separately. If the washing water does not reach evenly inside, there is a disadvantage that the washing rate is lowered and the washing time is also longer.

In order to solve this problem, it is an object of the present invention to provide a dishwasher in which washing water is widely sprayed in the washing chamber and a nozzle is provided with a strong rotational force to the washing water.

In order to achieve this object, the dishwasher includes a main body; A washing chamber provided inside the main body; A nozzle nozzle rotatably provided in the washing chamber and having a flow path formed therein, and a propeller formed in the nozzle hole so as to rotate by water flow provided in the nozzle bar; And a coupling member for rotatably supporting the rotating nozzle.

In addition, a stepped portion is formed on an outer diameter portion of the rotating nozzle, and the coupling member is provided with an inner diameter portion having an inner diameter smaller than the stepped portion, wherein the stepped portion is supported by the inner diameter portion to be rotatable.

In addition, a vertical injection hole penetrating the inside and the outside of the nozzle hole is provided at the center of the nozzle hole.

In addition, the engaging member is provided with a latching jaw, the washing chamber is provided with a flow path is formed therein is provided a mounting hole penetrating the inside and the outside at a predetermined position, the nozzle bar is provided with a coupling hole around the installation hole, Rotating nozzle is characterized in that installed on the nozzle bar by the coupling member.

In addition, the rotary nozzle is characterized in that the injection hole is provided with a gradually increasing radius toward the outside from the nozzle hole to have a predetermined inclination angle with respect to the central axis of the nozzle hole.

Hereinafter, with reference to the accompanying drawings, dishwasher according to a preferred embodiment of the present invention will be described in detail.

1 is a side cross-sectional view showing the structure of a dish washer according to the present invention.

As shown in FIG. 1, the dishwasher according to the present invention includes a main body 10 having a front surface open and a washing chamber formed therein, and a washing chamber open on the front surface of the main body 10 to open and close the washing chamber. 11 is provided with a main body 10 and a door 30 rotatably installed in the vertical direction on the front of the main body 10 to open and close the washing chamber (11).

In addition, the inside of the washing room 11 is provided with the upper and lower tableware baskets 12a and 12b for storing the dishes to be washed, respectively, to spray the washing water to the dishes stored in the baskets 12a and 12b. The fixed spray nozzle 13 is installed in the upper part of the washing chamber 11, and the nozzle bar 25 is installed in the center and the lower part of the washing chamber 11, respectively.

In addition, the rear side of the washing chamber 11 is provided with a water supply pipe 15 in which a water supply control valve 14 is installed to supply the washing water to the inside of the washing chamber 11 at the initial operation.

     In the lower part of the washing chamber 11, a circulation pump 16 is installed to pressurize and supply the washing water toward each of the injection nozzles 13 and 25 in the washing chamber 11, and the lower washing chamber 11 contains the washing water and dirt. A water collecting unit 17 recessed to a predetermined depth is formed, and the water collecting unit 17 is provided with a filter 18 for filtering the washed dirt.

      A suction pipe 19 is connected between the circulation pump 16 and the catchment unit 17 so that the wash water filtered through the filter 18 can be recycled, and the lower part of the catchment unit 17 drains the wash water after the washing operation is finished. The drainage pump 20 and the drainage pipe 21 extending from the drainage pump 20 to the outside of the main body 10 is installed.

       2 to 4 in order to examine the nozzle structure in more detail to spray the washing water, the nozzle bar 25 is rotatable nozzle 24 is formed to rotate by the water flow is rotatable by the coupling member 23 To be installed.

      To this end, a stepped portion 24d is formed at the bottom of the outer diameter portion of the rotary nozzle 24, and the coupling member 23 is provided with an inner diameter portion 23a having an inner diameter smaller than that of the stepped portion 24d. 23a is provided to have a larger inner diameter than the outer diameter portion of the rotary nozzle 24, so that the step 24d is supported by the inner diameter portion 23a, so that the rotary nozzle 24 is rotatable without being separated from the nozzle bar 25. Supported.

      In addition, the rotary nozzle 24 has a propeller 24a integrally provided with the rotary nozzle 24 in the nozzle hole 24c and penetrates the inside of the nozzle hole 24c in the direction of the center axis of the nozzle hole 24c. The vertical injection hole 24b is provided, and the radius gradually increases toward the outside from the nozzle hole 24c to have a predetermined inclination angle with respect to the central axis of the nozzle hole 24c in the outward direction of the nozzle hole 24c. An injection hole 24e is provided.

     Coupling member 23 is a means for installing the rotating nozzle 24 to the nozzle bar 25, the coupling member 23 is provided with a locking step (23b) extending in the lower direction, the nozzle bar (25) An installation hole 25a penetrating the inside and the outside is formed at a predetermined position where the rotary nozzle 24 is to be installed, and a coupling hole 25b corresponding to the locking jaw 23b is formed around the installation hole 25a. do.

       The installation hole 25a corresponds to a flow path for supplying the washing water so that the washing water can be injected from the rotating nozzle 24, and the locking jaw 23b and the coupling hole 25b are coupled to the nozzle bar 25 with the coupling member 23. Hanging structure for fixing the.

      Next, the installation process and the operation process of the rotating nozzle having such a configuration will be described.

       As shown in FIG. 2, in order to install the rotary nozzle 24, the rotary nozzle 24 is disposed at an installation position of the nozzle bar 25 in which the installation hole 25a and the coupling hole 25b are provided, and the coupling member 23. ) Is pressed from the top to the lower direction to surround the outer diameter portion of the rotary nozzle 24, the locking jaw (23b) is inserted into the coupling hole (25b) while being elastically deformed so that the locking jaw (23b) is seated in the coupling hole (25b) It is not randomly separated.

       Looking at the operation of the rotary nozzle 24, the high pressure washing water is supplied to the nozzle bar 25 along the internal passage while the circulation pump 16 is operated, the nozzle of the rotary nozzle 24 installed in the nozzle bar 25 The washing water is sprayed from the hole 24c, and the washing water is vertically sprayed from the vertical spray hole 24b formed at the center of the nozzle hole 24c.

        In addition, when the washing water collides with the propeller 24a installed in the outer diameter direction of the vertical injection hole 24b, the propeller 24a generates a rotational force in the circumferential direction so that the entire rotating nozzle 24 is coupled to the coupling member ( Rotate while being supported by 23).

       At this time, the washing water sprayed while passing through the propeller 24a is guided according to the inclination angle of the propeller 24a and sprayed with the rotational force added in the circumferential direction.

       As such, the reaching distance is determined by the injection hole 24e having a predetermined inclination angle. The washing water sprayed in the vertical direction or through the nozzle hole 24c is injected at a wide angle to increase the inclination angle, but the injection pressure is increased. Rapidly decreasing and decreasing the distance to reach in the form of a straight stream.

      The washing water sprayed from the vertical spray hole 24b is maintained in a straight line to a relatively long distance as compared to the water flow passing through the propeller 24a, and the washing water passing through the propeller 24a is equal to the inclination angle of the injection hole 24e. It spreads over a wide range, and the washing process of dishes is performed by the combined action of these two streams.

      In addition, the rotary nozzle 24 installed in the nozzle bar 25 is evenly sprayed to the tableware by the rotation operation of the nozzle bar 25 in addition to the water flow rotation of the rotary nozzle 24 itself. The position where the rotary nozzle 24 is installed on the nozzle bar 25 is determined in consideration of the injection range according to the inclination angle of the injection hole 24e.

The present invention, as described above, the propeller is installed in the nozzle hole is rotated by the hydraulic pressure of the nozzle itself, the rotational force is added to the water flow itself is discharged.

Accordingly, the spraying range of the washing water can be enlarged according to the inclination angle to the injection hole, and the straight stream through the vertical spray hole performs the complex washing operation together with the rotation flow by the propeller, thereby improving the washing efficiency of the contaminated tableware. It can be effective.

Claims (5)

main body; A washing chamber provided inside the main body; A nozzle bar rotatably provided in the washing chamber and having a flow path formed therein; A rotating nozzle installed in the nozzle bar and having a propeller formed in the nozzle hole to rotate by sprayed water flow; And a coupling member for supporting the rotating nozzle to be rotatable in the nozzle bar. 2. The tableware of claim 1, wherein a stepped portion is formed at an outer diameter portion of the rotating nozzle, and the coupling member has an inner diameter portion having an inner diameter smaller than the stepped portion, and the stepped portion is rotatably supported by the inner diameter portion. syringe. The dishwasher of claim 2, wherein a vertical injection hole penetrating the inside and the outside of the nozzle hole is provided at a center of the nozzle hole. According to claim 3, The engaging member is provided with a latching jaw, The washing chamber is formed in the flow path therein is formed in the installation hole penetrating the inside and outside at a predetermined position and the coupling hole is formed around the installation hole Bar is provided, the rotary nozzle is installed on the nozzle bar by the coupling member.       The dishwasher according to claim 4, wherein the rotary nozzle is provided with a spray hole, the radius of which gradually increases from the nozzle hole toward the outside so as to have a predetermined inclination angle with respect to the central axis of the nozzle hole.

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