JP2783862B2 - washing machine - Google Patents

Description

The present invention relates to a washing machine, and more particularly to a washing machine having a drainage mechanism at the bottom of a washing tank.

(B) Conventional technology As a conventional technology, for example, Japanese Utility Model Application Laid-Open No. 54-95175 discloses a washing tank having a drain opening at the bottom, and an inverted tank having an upper opening in contact with the drain opening and a lower end opened outside the main body. A conical drain joint pipe is provided, a drain pipe is connected to the lower end opening, and the lower end opening abuts on the inverted conical portion of the joint pipe via a seal member to lift the overflow pipe closing the lower end opening of the joint pipe. There is disclosed a dishwasher which is erected as possible, lifts the overflow pipe to release the blockage, and drains washing water in a washing tank from a drain joint pipe.

(C) Problems to be Solved by the Invention In such a conventional technique, at present, the dirty washing water drained from the joint pipe is directly drained to the drain pit through the drain pipe. The oil contained clogged the piping and caused environmental pollution.

The present invention has been made in view of the above problems, and provides a cleaning machine having a grease wrap that removes oil contained in cleaning water, prevents clogging of pipes, and prevents contamination of drainage.

(D) Means for Solving the Problems In order to solve the above problems, the present invention provides a cleaning machine comprising: a cleaning tank having a drain port below a cleaning chamber; and a drain plug provided at the drain port. A washing machine in which a grease trap for collecting washing water drained from the drain port and guiding the washing water to a drain pipe is provided at a lower portion of the main body so as to be able to be drawn out of the main body.

(E) Function The present invention can recover the oil contained in the washing water by the action of the grease trap, and can prevent oil clogging in the drainage pipe and contamination of the drainage, and of course, the grease trap can be attached to the main body. Since it is built in, it is unnecessary to bury grease traps on the floor. Moreover, since the grease trap can be pulled out from the main body, the collected oil can be periodically cleaned.

(F) Example An example of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional front view showing the internal structure of the washing machine of the present invention, FIG. 2 is a front view of the washing machine of the present invention, and FIG. A front door (3) for opening and closing the cleaning chamber (2) is rotatably mounted on a front surface of the cleaning chamber (2) formed in a compartment, and a double door is provided on a lower front surface of the main body (1). Type door (4) and right-hand door (5) next to it
Is equipped. A support rail (8) on which a left rack (6) and a right rack (7) for accommodating the object to be cleaned (5) are arranged in a lower part of the cleaning chamber (2).

Thus, an upper left washing nozzle (9) is provided at the upper left of the washing chamber (2) corresponding to the upper part of the left rack (6), and the washing chamber corresponding to the lower part of the left rack (6). At the lower left of (2), a lower left washing nozzle (10) is provided,
An upper right cleaning nozzle (11) is provided in the upper right part of the cleaning chamber (2) corresponding to the upper part of the right rack (7), and the cleaning chamber (2) corresponding to the lower part of the right rack (7). The lower right washing nozzle (12) is provided at the lower right. Similarly to the cleaning nozzles (9) to (12), an upper left rinse nozzle (13), a lower left rinse nozzle (14), an upper right rinse nozzle (15), and a lower right rinse nozzle (16) are provided.

A washing tank (18) whose upper surface is covered with a detachable filter (17) is formed under the main body (1) below the washing chamber (2), and one side of the washing tank (18) is formed. Is connected to a left washing pump (19) for the left and right washing nozzles (9) and (10). The other side of the washing tank (18) is connected to a right and left washing nozzle (11) and (12). The right cleaning pump (20) is connected. (21) is an overflow pipe fitted with a rubber seal packing (22) as a drain plug at the lower end. Normally, a drainage fitting pipe (23) with the packing (22) fixed to the bottom of the washing tank (18) The seal packing (22) closes the drain port (24) by lifting the handle (25) connected to the upper end of the overflow pipe (21). The washing water in the washing tank (18) can be drained.

On the other hand, each of the rinse nozzles (13) to (16) is connected to a booster (25) mounted on a top plate (2A) of the cleaning chamber (2) via a rinse pump (26). The booster (25) is of a hot water storage type, includes an electric heater (27) and a temperature sensing element (28) for controlling the same, and a pressure sensor (30) for controlling a hot water supply solenoid valve (29) by water pressure. It has.

Thus, an inlet (31) and an outlet (32) are formed in the top plate of the cleaning chamber (2). This inlet (31) and outlet (3
2) is communicated by a storage case (33). Inside the case (33), a water-cooled heat exchanger (34) is provided on the suction port (31) side, and the air outlet (32) Electric fan (3
5) is arranged. Cooling water piping for heat exchanger (34) (34
In A), the inlet side is connected to a water pipe via a water supply solenoid valve (36). An exhaust port (37) is formed on the surface (33A) of the storage case (33) facing the heat exchanger (34) on the suction port (31) side. The exhaust port (37) is covered at its upper end by an opening / closing plate (39) attached to the outer surface of the storage case (33) via a hinge (38), and is openably closed. The opening / closing plate (39) is normally held in a hanging position for closing the exhaust port (37), and when the pressure in the cleaning chamber (2) rises abnormally, it turns outward to open the exhaust port (37). It is configured as follows.

By the way, a grease trap (41) that collects the washing water drained from the drain port (24) and guides it to the drain pipe (40) is provided at the lower part of the main body (1) so as to be able to be drawn out of the main body (1). Has been established. More specifically, referring to FIGS. 4 and 5, the grease trap (41) has an opening / closing lid (42) on the upper surface, and has three partition plates (43) for forming traps inside. It has a box-shaped collection container (44) and four casters (45) attached to the lower outside corner of the container (44). A collection port is provided at the front of the opening / closing lid (42). (46) is open, and an overflow pipe (47) protrudes laterally on the upper part of the container (44). The overflow pipe (47) is connected to the overflow pipe via an O-ring (48). A tool (49) is rotatably connected.

At the lower end of the drainage fitting pipe (23), a drainage fitting (5
0) is screwed so that it can move up and down. On the other hand, the outlet of the connector (49) which is perpendicular to the connection side with the overflow pipe (47) is inserted into the open end of the drain pipe (40), and in this state, the drain port (24) and the recovery port ( 46) are facing each other, and by lowering the drainage fitting (50), the fitting (50)
Enters into the collection port (46), and the movement of the guip strap (41) is prevented. This allows the drain (2
4) When the tank is opened, the washing tank (18) → drain (2)
4) → The drainage path of grease trap (41) → drainage pipe (40) will be formed.

Next, the operation of the present invention will be described with reference to the time chart of FIG. First, the cleaning object (5) stored in the racks (6) and (7) is set in the cleaning chamber (2), and then the door (3) is closed to start the cleaning process. , (20) are operated, and the cleaning water stored in the cleaning tank (18) is pumped to each of the cleaning nozzles (9) to (12), and is jetted to the object to be cleaned (5). The cleaning water after the jet cleaning passes through the filter (17), falls into the cleaning tank (18), and performs a cleaning operation in which the cleaning water is circulated again through the cleaning nozzles (9) to (12). When such a cleaning operation is performed for a predetermined time,
The cleaning pumps (19) and (20) stop and the cleaning operation ends.

Thereafter, after a rest time of several seconds, the rinsing pump (26) is operated, and the high-temperature rinsing water in the booster (25) is pumped to each of the rinsing nozzles (13) to (16), and is supplied to the cleaning object (5). Inject and rinse. When such a rinsing operation is performed for a predetermined time, the rinsing pump (26) stops and the rinsing operation ends.

When the rinsing operation is completed, the electric fan (35)
Is operated, and the water supply solenoid valve (36) is opened. Then, the high-temperature steam trapped in the washing room (2) by the above-mentioned rinsing operation is supplied from the suction port (31) to the storage case (3).
3) After being sucked into the heat exchanger (34) and passing through the heat exchanger (34), it is dehumidified and cooled, and then discharged from the outlet (32) to the washing chamber (2).
Circulating dehumidifying cooling operation is performed. As the dehumidifying cooling operation proceeds, the water vapor in the cleaning chamber (2) becomes air having a low humidity near normal temperature.

When the dehumidifying / cooling operation is performed for a predetermined time, the electric fan (35) is stopped, and the water supply solenoid valve (36) is closed, thus completing one cycle of operation from washing to dehumidifying / cooling.

The above-described cycle operation is repeatedly performed, and when one day's cleaning operation is completed, draining operation of dirty cleaning water in the cleaning tank (18) is performed. First, lift the handle (25) and lift the overflow pipe (21) and seal packing (2
2) is raised, and the drain port (24) is opened as shown in FIG. Then, the dirty washing water in the washing tank (18) is collected by the grease trap (41) through the drain port (24) as shown by the dotted line in FIG. It flows out of the overflow pipe (47) and is drained through the overflow connector (49) and further through the drain pipe (40).

Thus, the oil contained in the washing water is removed while passing through the grease trap (41), as shown by the dashed line in FIG. 5, and the outflow to the drainage pipe (40) is prevented as much as possible. Will be.

Thus, the oil removed by the grease trap (41) is periodically cleaned and collected. This operation is performed by opening the double door (4) at the lower front of the main body (1) and screwing the drainage connector (50) into the joint pipe (23) as shown in FIG. In this state, hold the handle (51) and slightly pull the grease strap (41) forward to remove the overflow connector (49) from the drainage pipe (40), and then rotate the overflow connector (49). Turn the exit upward. By doing so, when the grease trap (41) is pulled out of the main body (1), the internal wastewater does not flow out.

The grease trap (41) pulled out of the main body (1) removes the open / close lid (42) on the upper surface, treats the collected sewage, and cleans the inside. The cleaned grease strap (41) is returned into the main body (1) again and set as described above.

(G) Effect of the Invention As described above, the present invention incorporates the grease wrap in the main body, so that the work of embedding the grease lap on the floor surface becomes unnecessary, and the grease lap can be pulled out of the main body. Therefore, the collected oil can be easily cleaned, and the function of the grease trap can be maintained for a long time.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view of the washing machine of the present invention, FIG. 2 is also a front view, FIG. 3 is a side view, FIG. 4 is a partially cutaway side view of essential parts, and FIG. FIG. 6 is a side view for explaining how to pull out the grease trap, and FIG. 7 is a timing chart for explaining the cycle operation of the washing machine. (1) Body, (18) Cleaning tank, (22) Seal packing, (24) Drain outlet, (40) Drain piping, (41) Grease trap.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A47L 15/42 E03F 5/16

Claims (1)

(57) [Claims] 1. A washing machine comprising a washing tank having a drain port below a washing chamber and a drain plug provided at the drain port, wherein washing water drained from the drain port is provided at a lower portion of a main body. A washing machine characterized in that a grease trap that is collected and guided to a drainage pipe is disposed so as to be able to be pulled out of the main body.