KR960010943B1 - Water operating apparatus of washing or rinsing machines for crockery - Google Patents

Abstract

The apparatus simplifies the structure by forming a water supplying path, an inverse U shaped water drainage path and a siphon prevention structure within one molded member in the dish washing machine. The apparatus comprises: a molded member(12) , installed at a tub(2) and integrating in fusion a lower plate(12a) and an upper plate(12b); the water supplying path(14) including an water inlet(13) for flowing washing water into the molded member(12); a water supplying hole(15) formed on the lower plate(12a); the inverse U shaped water drainage path(18) including a water drainage entrance(17) and exit(17); an air supplying hole(19) formed on the upper part of the molded member(12); an air supplying path(20) guiding the air toward the water drainage path(18).

Description

Dishwasher, Drainage

1 is a perspective view of main parts of a washing machine equipped with a conventional device.

2 is an enlarged view showing the drainage structure of the conventional apparatus.

Figure 3 is a front view showing a partial cut away the mold member constituting the apparatus of the present invention.

Figure 4 is a side view showing a mold member constituting the apparatus of the present invention.

5 is a cross-sectional view taken along the line B-B in FIG.

6 is a cross-sectional view taken along the line C-C of FIG.

FIG. 7 is an enlarged view of portion A of FIG.

8 is an exploded perspective view showing a portion A of FIG.

* Explanation of symbols for the main parts of the drawings

1: body 2: tub

6: water supply valve 6: water supply hose

7: drain pump 8: drain pump

9: drain hose 12: mold member

12a: lower plate 12b: upper plate

13: water supply port 14: water supply passage

15: water supply hole 16: water inlet

17: water supply outlet 18: drainage passage

19: air supply hole 20: air supply passage

21: Union 22: Concave groove

23: opening and closing plate 24: protrusion

25: hole

The present invention relates to a supply and drainage device of a dishwasher, and more particularly, to simplify the structure and to reduce production costs and to improve productivity.

In general, the dishwasher is a device for automatically cleaning various dishes, the main body (1) forming an outer case, the tub (2) forming an inner case and the inside of the tub to slide in and out along the rail (3) A shelf (4) installed to support various vessels, a door (5) rotatably installed in front of the main body (1) to open and close the inside of the tub (2), and the main body (1) and the tub (2) is provided between the water supply and drainage for watering when washing and draining when the washing is completed, and the water is installed in the tub (2) when the washing water supplied to the bowl supported by the shelf It is largely composed of an injection nozzle (not shown) for injection.

The water supply and drainage device of the dishwasher configured as described above has a water supply valve 6 mounted on the tub so as to be located between the main body 1 and the tub 2, one end of which is connected to the water supply valve and the other end of the tub 2 Connected to the water supply hose (7) for guiding the water for washing into the tub (2) when the water supply valve (6) is opened, and pumping water in the tub (2) by receiving power when selecting drainage. A drain pump (8), an inverted U-shaped drain hose (9) connected to the drain pump to guide the water pumped by the drain pump (8) to the outside, and a peak portion of the drain hose It is connected to the connector 10 is composed of an air supply hose 11 for guiding the air in the air to enter the drain hose (9) when water supply.

Referring to the operation of the conventional class, drainage configured as described above with the overall operation of the dishwasher as follows.

The water supply valve 6 constituting the water supply and drainage system and the water cock are connected with a connecting hose (not shown), and the door 5 is opened to open the inside of the tub 2, and then the shelf 4 installed inside the tub. Pulling the shelf is guided along the rail 3 and sliding forward.

In this manner, after supporting the various dishes to be washed on the shelf while the shelf 4 is moved forward, the shelf 4 is pushed again to slide the shelf backward and close the open door 5. Closing the inside of the tub (2) and then select the wash button to wash the bowl.

That is, when the user selects the washing button, the water supply valve 6 is opened according to the control signal of the controller, so that the washing water is guided through the water supply hose 7 to enter the tub 2 and the washing water entered into the tub. Since it is sprayed through the spray nozzle, the vessel supported on the shelf 4 is washed by the sprayed water.

When the washing of the bowl is completed by the above-described action, the water supply valve 6 is closed by the control signal of the controller and the drain pump 8 is supplied with power to operate the washing which is collected inside the tub 2. The pumping water and the pumped water is guided to the inverted U-shaped drain hose (9) and exits to the outside, the cleaning process is completed.

On the other hand, when the washing process is completed, the drain pump (8) is stopped by receiving the control signal from the controller, and the water supply valve (6) is opened again. Atmospheric air is supplied through a supply supply hose 11 connected to the highest point of the drain hose 9 as a connector 10, and the supplied air remains at the highest point of the drain hose and causes a siphon phenomenon. This prevents the water supply from draining immediately.

If the air is supplied to the highest point of the drain hose (9) during water supply, the siphon phenomenon occurs according to the shape of the drain hose, so that the water to be supplied is immediately drained, so if the drain hose (9) is reversed U It is thought that it is not necessary to make the shape of a magnet, but even in this case, the water supplied immediately drains, so as described above, the drain hose 9 must be inverted U shape to supply air to the highest point of the drain hose. It is most preferable to supply so that a siphon phenomenon does not occur. Therefore, the water supply and drainage hoses of the conventional dishwasher are separately made of a water supply hose and a drainage hose, and a drainage lake is directly formed in an inverted U shape to prevent a siphon phenomenon during water supply. Since the supply hose is connected as a connector, as the structure is complicated, the assembly work is inconvenient, resulting in an increase in production cost and a drop in productivity.

In addition, there is a problem that water leakage occurs between the drain hose and the air supply hose connected as a contactor due to climatic conditions or the temperature and composition of the drained water during long-term use. In order to solve the above problems, the present invention provides a water supply passage for guiding water to be supplied in one mold, a drain passage for guiding water to be drained, and a structure to prevent a siphon phenomenon during water supply, thereby simplifying the structure. The purpose is to reduce the production cost and improve productivity as well as to prevent failure due to leakage even if used for a long time.

According to the present invention for achieving the above object is a mold member which is mounted to the tub so as to be located between the main body and the tub, the lower plate and the upper plate is integrally formed by fusion, and formed in the mold member and the water supply hose according to the opening of the water supply valve. A water supply passage having a water supply port for introducing the cleaning water guided through the mold member, and formed in the lower plate constituting the mold member so that the water for cleaning introduced into the mold member through the water supply passage enters the tub. An inverted U-shape having a water inlet and a drain inlet and a drain outlet to allow the water used in the mold member to be guided through the drain hose according to the operation of the drain pump to enter and exit the mold member. It is formed on the drain passage and the upper end of the mold member, even if the atmospheric air is supplied into the mold member An air supply hole formed in the mold member to guide the air supplied through the air supply hole toward the drain passage, and an air supply passage at the end of the drain passage of the air supply passage. The air supply and drainage device of the dishwasher is provided by the passage opening and closing means for supplying the air guided through the drainage passage and preventing the water supply when supplied.

Hereinafter, the present invention will be described in more detail with reference to FIGS. 3 to 8 of the accompanying drawings.

FIG. 3 is a front view showing a part of the mold member constituting the present invention, and FIG. 4 is a side view showing the mold member constituting the present invention. FIG. 5 is a cross-sectional view taken along line BB of FIG. 3 and FIG. CC line sectional drawing, FIG. 7 is an enlarged view which shows the part A of FIG. 3, and FIG. 8 is an exploded perspective view which shows the part A of FIG. 3, The same structure as the conventional structure demonstrated in the structure of this invention is represented on the drawing. It will be omitted in advance that only the conventional symbols in the description of the components are omitted.

According to the present invention, a mold member 12 having a lower plate 12a and an upper plate 12b integrated by fusion is mounted on the tub 2 so as to be located between the main body 1 and the tub 2, and the mold member A water supply passage 14 having a water supply port 13 is formed at 12 so that the cleaning water guided through the water supply hose 7 is introduced into the mold member 12 as the water supply valve 6 is opened. In addition, the lower plate 12a constituting the mold member forms a water supply hole 15 in communication with the water supply passage 14, and the washing water introduced into the mold member 12 through the water supply passage 14 is tub ( 12) the mold member 12 is formed in the inverted U-shaped drain passage having a drain inlet 16 and the drain outlet 17 to form a drain according to the operation of the drain pump (8) Water used for washing guided through the hose (9) enters the mold member (12) and then exits again, and the mold member (12) An air supply hole 19 is formed at the upper end to allow air in the air to be supplied into the mold member 12 through the air supply hole, and an air supply passage 20 is formed in the mold member to form an air supply hole ( The air supplied through 19 is guided to the drain passage 18 which is guided to the air supply passage 20, and a passage opening and closing means is provided at the end of the inner passage 18 of the air supply passage 20 to drain the water. When opening and closing the passage means to close the air supply passage 20 to open when water supply.

In the above passage opening and closing means is coupled to the combined end 21 and the end of the drain passage 18 in the air supply passage 20, and formed on the lower surface of the combination to provide the air supply passage 20 and the drain passage (18) Communicating with each other The concave inlet groove 22 and the water to be guided to the drain passage (18) when drained into the air supply passage 20 through the concave inlet groove 22 is installed rotatably on one side of the combination (21) The concave groove 22 is closed so as not to be closed, and when the water is supplied, the concave groove 22 is opened so that the air guided to the air supply path 20 enters the drain passage 18 through the concave groove 22. It consists of the opening-and-closing board 23 which makes it possible.

In addition, a protrusion 24 is formed in the lower plate 12a constituting the mold member 12 to couple the coupling 21 constituting the passage opening and closing means to the drain passage 18, and the hole 25 is formed in the coupling 21. To form the assembly 21 is pressed into the protrusion 24 through the hole (25).

Referring to the operation, effects of the present invention configured as described above in detail.

In the related art, as described above, the water supply valve 6 and the tap cock are connected to a connecting hose (not shown), and then, after supporting various dishes to be cleaned on the shelf 4 in the tub 2, the washing button is selected. The bowl is washed.

That is, when the user selects the washing button, the water supply valve 6 is opened according to the control signal of the controller, so that the washing water is guided through the water supply hose 7 to form the mold member 12 together with the upper plate 12b. The water for washing into the mold member 12 through the water supply port 13 of the lower plate 12a is continuously guided through the water supply passage 14 and the water supply hole 15 formed in the mold member. Washing water entering the tub (2) into the tub to wash the vessel supported on the shelf (4) to be sprayed through the spray nozzle.

When the washing of the bowl is completed by the above-described action, the water supply valve 6 is closed by the control signal of the controller and the drain pump 8 is supplied with power to act as the washing in the tub 2. The pumped water is introduced into the mold member 12 through the drain inlet 16 of the lower plate 12a which is guided to the drain hose 9 and forms the mold member 12 together with the upper plate 12b. Water that was used for washing and entering into the mold member is continuously guided through the inverted U-shaped drain passage 18 formed in the mold member 12 to be discharged to the outside through the drain outlet 17. Is done.

In the above-described operation, the opening and closing plate 23 constituting the passage opening and closing means immediately before the drainage pump 8 is operated to drain the water used for cleaning is shown in the solid line in FIG. When opening the concave groove (22) formed in the form of water) and the drainage is started, the opening and closing plate 23 is rotated counterclockwise in the drawing about the hinge axis by the pressure of the water guided to the drain passage (18) The inlet groove 22 that was opened is closed as shown by the dashed-dotted line of FIG. 7, which allows a portion of the drained water to enter the air supply passage 20 through the inlet groove 22 formed in the assembly 21 as little as possible. The inlet groove 22 The purpose is to allow a portion of the drained water to enter the air supply passage 20 less through the inlet groove.

On the other hand, when the washing process is completed, the drainage pump 8 is stopped and the water supply valve 6 is opened again by receiving the control signal of the controller, and the rinsing process is started as the water is supplied as described above. Since the opening and closing plate 23 closing the recess 22 formed in the assembly 21 is rotated again around the hinge axis by its own weight, the recess 22 is opened as shown by the solid line of FIG. 7. do.

In this way, when the water supply process is started again to rinse in the state in which the inlet groove 22 formed in the assembly 21 is opened, the air is supplied through the air supply hole 19 formed at the upper end of the mold member 12. Since the outside air guided by 20 passes through the concave groove 22 and enters the highest point portion of the drain passage 18 having an inverted U shape, the siphon phenomenon is prevented during water supply.

Actions not described in the present invention below are considered to be understandable with reference to the conventional action descriptions described above.

Therefore, in the present invention, the water supply passage for guiding the water supply and the reverse U-shaped drain passage for guiding the drainage and the structure for preventing the siphon phenomenon are all provided in one mold member so that the structure is simple and the production cost is reduced and the productivity is reduced. This has the effect of improving the quality of the water does not occur because the water drainage does not occur according to various environmental conditions during long-term use.

Claims (4)

A mold member 12 mounted to the tub so as to be positioned between the main body 1 and the tub 2, wherein the lower plate 12a and the upper plate 12b are integrally formed by fusion; 6) the water supply passage 14 having a water supply port 13 to allow the cleaning water guided through the water supply hose 7 to flow into the mold member 12, and the mold member 12. It is formed in the lower plate (12a) constituting the water supply hole (15) for the washing water introduced into the mold member 12 through the water supply passage 14 into the tub (2) and the mold member 12 The water inlet 16 and the drain outlet 17 are formed so that the water used for the cleaning which is guided through the drain hose 9 according to the operation of the drain pump 8 enters the mold member 12 and then exits again. And an inverted U-shaped drainage passage 18 having a) and an upper end of the mold member 12, An air supply passage 20 for supplying air and an air supply passage 20 formed in the mold member 12 to guide air supplied through the air supply hole 19 toward the drain passage 18. And, it is provided at the end of the drain passage (18) side of the air supply passage to ensure that the air guided through the air supply passage (20) is supplied to the drain passage (18) at the time of drainage and not supplied at the time of water supply Supply and drainage of the dishwasher, characterized in that the passage opening and closing means. The method of claim 1, wherein the passage opening and closing means is coupled to the end portion 21 coupled to the end of the drain passage 18 in the air supply passage 20, and formed on the lower surface of the combination air supply passage 20 and the drain passage Concave inlet groove (22) for communicating with each other and the water to be guided to the drain passage (18) during drainage is installed rotatably on one side of the combination 21, the air supply path through the inlet groove (22) Closing the inlet groove 22 to prevent entering into the (20) and the water guided to the air supply path (20) during the water supply to enter the drain passage (18) through the inlet groove (22) Supply and drainage of the dishwasher consisting of opening and closing plate 23 to open the mouth groove (22). According to claim 1, wherein the recessed groove 22 formed in the assembly 21 Drainage and drainage of dishwashers formed in the form of The method of claim 1 or 2, wherein the protrusions (24) are formed on the lower plate (12a) forming the mold member (12), and a hole (25) is formed in the assembly (21) for designing passage opening and closing means. Supplying and draining the dishwasher of the 21 to be coupled to the air supply passageway 20 by pressing the projection (24) through the hole (25).