KR100338126B1 - pump for tableware-syringe - Google Patents

Abstract

The present invention relates to a dishwasher pump that performs both the injection and drainage of water with a single motor. More specifically, since the installation direction of the pump is not limited, it is easy to assemble the pump, and the pressure in the drain pipe is restarted because the pressure is equal to atmospheric pressure. When the ball falls easily from the drainage packing, it prevents the idling of the fan during the initial injection to spray water in a short time, and to prevent the ball from being drained by elastically and tightly adhered to the drain hole in the washing stroke.

According to the present invention, the housing 41 in which the fan 40 is accommodated, the motor 42 driving the fan 40 in both directions, the supply pipe 43 and the drain pipe 44 respectively connected to the supply port and the drain port of the housing 41 are provided. , A ball 45 embedded in the housing 41 to selectively close the supply port and the drain port, a suction pipe 47 connected to the suction port of the cover 46, and between the fan 40 and the ball 45 in the housing 41. In the water flow guide 48 is installed in the supply packing 49 is installed between the supply port and the drain port of the housing 41, the supply packing 49 is supported by the ball 45 to drain the packing of the drain port It is configured to include a spring (51) in close contact with the 50, the atmospheric pressure hose (52) (53) in communication with the upper portion of the drain pipe (44) and the cover (46).

Description

Pump for dishwasher {pump for tableware-syringe}

The present invention relates to a dishwasher, and more particularly, to a pump for a dishwasher, which can perform both the injection of the water for dishwashing and the drainage of water after washing using one motor.

In general, the dishwasher is to wash the dishes automatically by spraying the washing water to the dish using a pump, such a dishwasher is stored in the drip tray (2) the water supplied to the water supply pipe (1) as shown in FIG. The washing water is supplied to the upper and lower rotary bodies 5 and 6 via the supply pipe 4 by the pump 3 connected to the drip tray 2, respectively, and the upper rotary body 5 and the lower part are sprayed. On the upper side of the rotating body 6, upper and lower shelves 7 and 8 on which tableware is placed are respectively provided, and the upper and lower rotating bodies 5 and 6 have a plurality of injection holes provided on the upper surface thereof. Wash the dishes while spraying the washing water through.

Water sprayed through the upper and lower rotary bodies (5) and (6) is recovered to the drip tray (2) and circulated back to the upper and lower rotary bodies (5) 6 to repeatedly perform the washing stroke, and dish washing is completed. When the pump 3 is driven in the opposite direction, the water in the drip tray 2 is discharged to the outside through the drain pipe (9).

Meanwhile, conventionally, the water in the drip tray 2 is sprayed by supplying it to the upper and lower rotating bodies 5 and 6, and after completion of washing, the water in the drip tray 2 is discharged to the outside through the drain pipe 9. Although pumps (supply pumps and drainage pumps) were used, respectively, when two pumps are used, the structure of the dishwasher is complicated and the volume is unnecessarily large. Recently, a single motor can perform both water injection and water drainage. Spray and drain pumps were provided.

In the conventional dishwasher pump 3 for spraying and draining water with one motor, as shown in FIGS. 2 and 3A and 3B, a supply port and a drain port are connected to both sides of the supply pipe 4 and the drain pipe 9. The housing 30, the fan 31 mounted on the housing 30, the motor 32 for driving the fan 31 in both directions, the built-in housing 30 moves along the water flow to selectively supply and drain Installed between the ball 33 and the ball 33 in the housing 30, the suction tube 35 connected to the suction port of the cover 34, the cover 34 covering the housing 30, and the housing 30. The water flow guide 36, which is provided at the inlet of the supply port and the drain port of the housing 30, drainage packing 37, 38 is composed of.

Referring to the operation of the conventional dishwasher pump configured as described above are as follows.

First, during the washing stroke, the motor 31 is driven so that the fan 31 is rotated in the clockwise direction. As shown in FIG. 3A, the fan 31 forms a stream of water in a clockwise direction, and the ball 33 drains along the stream of water. Since it moves to the side and closes the drain packing 38 provided in the drain, the supply pipe 4 is opened and the drain pipe 9 is closed by this. Accordingly, the water in the drip tray 2 is sucked into the housing 30 through the suction pipe 35, and the sucked water is supplied to the upper and lower rotary bodies 5 and 6 through the supply pipe 4 and sprayed into the tableware. do.

Next, when the cleaning is completed, the fan 31 is driven to rotate in the counterclockwise direction, so as shown in FIG. 3B, the fan 31 forms a stream of water in a counterclockwise direction. By moving to the supply port side along to close the supply packing 37 installed in the supply port, thereby the supply pipe 4 is closed and the drain pipe 9 is opened. Accordingly, the water in the drip tray 2 is sucked into the housing 30 through the suction pipe 35, and the sucked water is discharged to the outside through the drain pipe 9.

The pump 3 operated as described above is supplied (sprayed) and drained of the washing water with one pump by a motor 32 rotatable in both directions and a ball 33 operated according to the water flow direction in the housing 30. As a result, the number and size of dishwasher parts can be reduced, and the cost of dishwasher can be reduced.

However, such a conventional dishwasher pump 3 has the following structural problems.

First, the installation direction of the pump (3) is limited because the ball 33 is to be installed to selectively close the supply pipe (4) and the drain pipe (9), respectively, as shown in Figure 3a, 3b There was a problem that was not easy to assemble,

Second, when the drainage is completed at the time of drainage, the ball 33 closes the inlet of the drain hole with a strong force due to the lack of water, that is, the pressure in the drain pipe 9 due to the large air pressure sucked in and the inertia force of the drained water is reduced to the housing 30. Less than the pressure in the), and because of this, the suction force in the drain pipe (9) is large, there is a problem that the ball 33 does not easily fall off the drainage packing 38 when restarting,

Third, since the air in the housing 30 is not structurally discharged to the outside, pumping is not performed well until the water is sucked into the housing 30 at a predetermined level during the initial washing stroke, so that only the fan 31 is idling fast. There was a problem that can not spray water in time,

Fourth, since the ball 33 is moved to the drain only by the water flow during the washing stroke to close the drain pipe 9, at this time, the ball 33 is not tightly adhered to the drain packing 38, the water is drained during the washing administration There was.

The object of the present invention is to invent the conventional drawback as described above, since the installation direction of the pump is not limited, it is easy to assemble the pump, the pressure in the drain pipe is the same as the atmospheric pressure, the ball is easy in drain packing when restarting Falling, to prevent the idling of the fan during the initial injection to spray the water in a quick time, and to provide a dishwasher pump to prevent the drainage by elastically tightly adhered to the ball in the drain during the cleaning administration.

In order to achieve the above object, the present invention provides a supply packing between the supply port and the drain port of the housing, the ball is configured to selectively close the drain packing and supply packing, the ball on one side of the supply packing is flexible to the drain packing Springs to be in close contact with each other, and atmospheric pressure hoses are installed on the drain pipe and the cover, respectively.

1 is a schematic view of a dishwasher.

Figure 2 is a partially cutaway side view showing the structure of a conventional pump.

Figure 3a, 3b is a front view showing the structure and operation of the conventional pump.

Figure 4 is a partially cutaway side view showing the structure of the present invention.

Figures 5a, 5b is a front view showing the structure and operation of the present invention.

<Code Description of Main Parts of Drawing>

40: fan 41: housing

42: motor 43: supply pipe

44: drain pipe 45: ball

46: cover 47: suction pipe

48: Water flow guide 49: Supply packing

50: drainage packing 51: spring

52,53: Atmospheric pressure hose

Hereinafter, the technical configuration of the present invention according to the accompanying drawings in detail.

As shown in FIG. 4 and FIGS. 5A and 5B, the pump for a dishwasher of the present invention includes a housing 41 in which the fan 40 is accommodated, a motor 42 driving the fan 40 in both directions, and a housing 41. Supply pipe 43 and drain pipe 44 connected to the supply port and the drain of the respectively, the ball 45 is built in the housing 41, the suction pipe connected to the suction port of the cover (46) to selectively close the supply port and the drain ( 47), the water supply guide 48 provided between the fan 40 and the ball 45 in the housing 41, the supply packing 49 is provided between the supply port and the drain port of the housing 41, A spring 51 which is supported by the supply packing 49 and closely contacts the ball 45 to the drain packing 50 of the drain hole, and an atmospheric pressure hose 52 installed in communication with the upper part of the drain pipe 44 and the cover 46. The configuration, including the 53, is characterized by its technical configuration.

Here, the supply pipe 43 is connected to the upper and lower rotary bodies for injecting water, the suction pipe 47 is connected to the drip tray.

If described in detail according to the accompanying drawings the overall operating relationship of the present invention configured as follows.

First, since the fan 40 is driven to rotate in the clockwise direction during the washing stroke, the fan 40 forms water flow in the clockwise direction as shown in FIG. 5A, and the ball 45 is the spring 51. Due to the elasticity and water flow of the close contact with the drainage packing 50 installed in the drain, thereby the supply pipe 43 is opened and the drain pipe 44 is closed. Accordingly, the water in the drip tray is sucked into the housing 41 through the suction pipe 47, and the sucked water is supplied to the upper and lower rotating bodies through the supply pipe 43 and sprayed into the tableware.

Air in the housing 41 is discharged to the outside through the atmospheric pressure hose 53 installed in the cover 46 during the washing stroke.

Next, when the washing is completed, the fan 40 is driven to rotate in the counterclockwise direction, so as shown in FIG. 5B, the fan 40 forms a stream of water in a counterclockwise direction, in which the ball 45 flows. By moving the spring 51 to the supply packing 49 side while closing the supply packing 49, thereby closing the supply pipe 43 and the drain pipe 44 is opened. Accordingly, the water in the drip tray is sucked into the housing 41 through the suction pipe 47, and the sucked water is discharged to the outside through the drain pipe 44.

During or after the drainage stroke, the pressure in the drain pipe 44 is maintained at the same pressure as the atmospheric pressure by the atmospheric pressure hose 52 installed in the drain pipe 44.

Therefore, the present invention, as shown in Figures 5a, 5b, because the ball 45 receiving the elasticity of the spring 51 selectively closes the supply pipe 43 and the drain pipe 44, respectively, the structural installation of the pump Since the direction is not limited, pump assembly is easier than in the prior art.

In addition, in the present invention, since the pressure in the drain pipe 44 is the same as the atmospheric pressure by the atmospheric pressure hose 52 installed on the drain pipe 44, that is, the pressure in the drain pipe 44 and the housing 41 is the same, so that the drain pipe 44 Since the suction force of the very small compared to the conventional ball 45 is easily dropped from the drainage packing (50).

In the present invention, since the air in the housing 41 is discharged to the outside by the atmospheric pressure hose 53 installed on the upper portion of the cover 46, that is, the air in the housing 41 is discharged to the atmospheric pressure hose 53 during the initial washing stroke. While the water is sucked up to the highest water level in a short time, the fan 40 can be reduced to idle as much as possible to inject water in a short time.

In addition, in the present invention, since the ball 45 is elastically tightly adhered to the drainage packing 50 by the spring 51 to close the drain pipe 44, the water is not drained during the washing stroke.

As described above, the present invention is easy to assemble the pump because the installation direction of the pump is not structurally limited, the pressure in the drain pipe is the same as the atmospheric pressure, the ball falls easily from the drainage packing when restarting, to prevent the idling of the fan during the initial injection Water can be sprayed at a quick time, and the spring is a very useful invention that can prevent the draining during the washing stroke because the spring is elastically in close contact with the drain hole.

Claims (1)

A housing 41 in which the fan 40 is accommodated, a motor 42 driving the fan 40 in both directions, a supply pipe 43 and a drain pipe 44 connected to the supply port and the drain port of the housing 41, respectively, and the housing ( 41 is installed between the ball 45 and the fan 45 in the housing 41, the suction pipe 47 connected to the suction port of the cover 46, the ball 45 to selectively close the supply and drain holes In the water flow guide 48, the supply packing 49 is installed between the supply port and the drain port of the housing 41, the supply packing 49 is supported by the ball 45 to the drain packing 50 of the drain port And a spring (51) to be in close contact with the drain pipe (44) and an atmospheric pressure hose (52) (53) communicating with the upper portion of the cover (46).