JPH03268731A - Tableware washing machine - Google Patents

Abstract

PURPOSE:To accumulate washing water to a necessary water level, and also, to attain the reparation by drawing out a pump from the front by constituting a trap passage by providing a short cylinder part on the drain pipe of a drain pump discharge side, joining its upper end to a hole provided on a washing tank, and also, providing a cap covering its hole. CONSTITUTION:The drain pipe 8 of the discharge side of the drain pump 5 is drawn out horizontally, and on a part thereof, a short cylinder part 14 whose upper face is opened is provided and its upper end is joined through packing 17 to a hole provided on the bottom face of a washing tank 15. In the inside of the short cylinder part 14, a trap piece 20a is provided projectingly so as to partition the upstream and the downstream. To the hole provided on the bottom face, a cap 16 is attached through the packing 17, and in the inside, an auxiliary trap piece 20b joined to said trap piece 20a is provided, its auxiliary trap piece 20b is provided so as to become higher than the water level of a washing liquid 21 accumulated at the time of washing, and also, an opening port 22 is provided on a position being higher than its water level. Also, the trap passage is constituted of the short cylinder part 14 and the cap 16. In a drain process, the washing liquid 21 gets over the trap piece 20b and is drained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a dishwasher equipped with a pump for draining wash water.

BACKGROUND OF THE INVENTION In recent years, dishwashers built into sinks in system kitchens and the like have been widely used.

Conventionally, the drainage device of this type of dishwasher generally had a structure as shown in FIG.

The configuration will be described below with reference to the drawings.

As shown in the figure, tableware 2 is stored in a washing tank 1, and washing water accumulated at the bottom is pumped up by a washing pump 3 and sprayed onto the tableware through a washing nozzle 4 to wash the tableware. A drain pump 5 is attached to the rear of the motor 6 of the cleaning pump section 3, and is configured to discharge the cleaning water in the cleaning tank 1 to the outside of the machine.

By the way, when cleaning, it is necessary to store cleaning water at a constant level in the cleaning tank 1, and if the discharge hose 8 is pulled out horizontally, the cleaning water in the cleaning tank 1 will flow out, making it impossible to perform the required cleaning. Become. For this reason, the drainage outlet 8 connected to the discharge lower of the drainage pump section 5 is raised to a position higher than the inner bottom of the cleaning tank 1 on the back side of the sputum cleaning tank 1, and is placed at the inner bottom of the cleaning tank. Wash water is collected therein, and after the drain hose 8 is raised, it is pulled out to the front of the dishwasher. 12 in the diagram is the frame that supports the dishwasher.
Reference numeral 13 denotes a bottom plate which is attached to the lower part of the underframe 12.

Furthermore, the raised part of the drain port 8 is connected in the middle to an auxiliary drain port 10 having a through hole 9 that communicates with the inside of the cleaning tank 1 at the back of the cleaning tank 1. The cleaning water stored in the tank 1 is prevented from flowing out through the drain hose 8.

Problems to be Solved by the Invention In the drainage device used in such conventional dishwashers, fish bones, toothpicks, pieces of tableware, nine rubber bands, etc. are mixed in the washing water, so the waste water filter 11 is However, if the leftover filter 11 is not properly installed, the washing pump section 3 and drain pump section 5
Situations such as getting caught or clogged inside the cleaning tank 1 occur extremely frequently.
It is not possible to pull out the drain pump 5 with the drain hose 8 connected horizontally to the front, so pull out the dishwasher from the system kitchen, turn it over, and remove the bottom plate 13 of the underframe 12 (step 7 to remove the drain port 8). After removing it, it was necessary to take out the cleaning pump section 3 and the drain pump section 7.

The present invention solves the above problems, and aims to provide a drain device for a dishwasher that can be easily repaired by pulling out the washing pump and drain pump to the front of the dishwasher even when the dishwasher is installed in a system kitchen. .

Means for Solving the Problems In order to achieve the above object, the present invention provides a first means for solving the problems, including a cleaning tank, a cleaning pump and a drain pump disposed at the bottom of the cleaning tank, and a drain pump discharge side. A short cylindrical part with an open top surface is provided on a part of the drain pipe that is large and leads out in the horizontal direction, a trap piece is provided protruding from the short cylindrical part, and the upper end of the short cylindrical part is connected to the bottom of the cleaning tank. Connect this hole from below and install a cap so as to cover the hole made in the bottom from the inside of the cleaning tank. An auxiliary trap piece is arranged at a position higher than the highest water level of the washing water, and a trap flow path is constituted by the short cylinder part and the cap.
As a means to solve this problem, a suction port having a leftover filter is integrally molded on the side of a short tube, and the short tube and suction port are removably connected to a hole at the bottom of the cleaning tank. This is what I did.

Function The function of the first problem-solving means of the present invention described above is that a trap waterway composed of a short cylindrical portion and a cap in the drainage channel protrudes into the cleaning tank, and the cleaning liquid is stored in the cleaning tank at a required water level. Since there is no drainage port that stands up at the rear of the cleaning tank, repairs can be made by pulling out the drainage pump, etc. to the front. In addition, the second problem-solving means of the present invention works by integrally molding the suction port with the leftover filter and the short cylindrical portion for creating the lap waterway,
Both can be attached to and removed from the cleaning tank, so not only can you pull them out to the front for M repairs, but you can also easily remove the component parts! :67 becomes.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIG. In this embodiment: T, the same components as described above are given the same reference numerals, and the explanation thereof will be omitted. A characteristic feature of this embodiment is the drainage section of the drainage pump 5. As shown in the figure, a drain pump 5 is disposed at the bottom of the cleaning tank 15, and a drain pipe 8 on the discharge side of the drain pump 5 is drawn out horizontally. A part of this drain pipe 8 is provided with a short cylindrical part 14 whose top surface is open, and the upper end of the short cylindrical part 14 is connected to the cleaning tank 1.
It is connected to a hole provided in the bottom surface of 5 with a gasket 17 interposed therebetween. There is a J-flow inside the short cylindrical portion 14.

A trap piece 20a is provided protrudingly to partition the downstream side. A cap 16 is attached to cover a hole provided in the bottom surface of the cleaning tank 15 to which the upper end of the short cylindrical portion 14 is joined. This cap 16 is attached to a gasket 17 on the bottom of the cleaning tank 15.
It has an auxiliary trap piece 20b inside which is joined to the tiger/tub piece 20a, and the auxiliary trap piece 20b is made to be higher than the water level of the cleaning liquid 21 that collects during cleaning. , an opening 22 is provided at a position higher than the water level. The short cylindrical portion 14 and the cap 16 constitute a trap flow path.

The opening 22 has a small diameter to the extent that there is no problem even if the water is discharged during drainage. In the draining process, the cleaning liquid 21 is drained over the trap piece 20b, through the drain hose 18, and into the drain port of the sink.

FIG. 2 shows an embodiment related to the means for solving the second problem of the present invention, and the difference between this embodiment and the means for solving the first problem is that it has a leftover filter 26. The suction part 27 is integrally molded on the side of the short cylindrical part 14 of the drain pipe 8.

To explain the operation in the above configuration, when water is supplied to the cleaning tank 15 prior to cleaning, when a predetermined amount of water accumulates in the cleaning tank 15, the drain pump 5 and one side of the cap 16 are also filled with water, and the water level increases. A predetermined water level is secured by the auxiliary trap 20b, and cleaning is performed by the cleaning pump 3. Then, the cleaning pump 3 is operated to drain the water in the cleaning tank 15. Normally, when washing dishes, washing and draining are repeated, but if water accumulates in the drain path during draining, it will flow over the auxiliary trap piece 20b to the drain due to the siphon phenomenon, but the open port 22 prevents this phenomenon. I'm here. If foreign matter such as fish bones gets clogged in the drain pump 5 during washing, when removing it, press M at the front of the dishwasher.
23, remove the drain hose 18 from the drain pipe, and then remove the cap 16, the cleaning nozzle bearing part 24, and the suction port 25 from inside the cleaning tank 15. Short tube part 14
．． The drain pump 5 and drain hose 18) can be taken out to the front.

As described above, according to the drain device for a dishwasher according to the embodiment of the present invention, a short cylindrical portion is provided in a part of the drain pipe, and the cap 15 of the trap piece, which cooperates with the short cylindrical portion to form the trap flow path, is cleaned. Since the height of the trap piece 2ob is higher than the highest water level of the cleaning water, the trap piece 2ob is installed in the cleaning tank 15.
There is no need to provide a drainage hose on the rear surface, and repairs can be made by pulling out the pump section on the front surface.In addition, the suction section 27 with the waste filter 26 and the short cylindrical section 14 are integrally molded, and the cap 16 Since it is removable from inside the cleaning tank, it can be pulled out to the front for repairs, and
This allows the components to be simplified.

Effects of the Invention As is clear from the above description of the embodiments, according to the present invention, the drain pipe on the discharge side of the drainage pump is provided with a short cylindrical portion, the upper end of which is joined to a hole provided in the cleaning tank, and the cleaning A cap is provided to cover the hole in the tank, a trap piece and an auxiliary trap piece are provided inside the short cylinder part and the cap, and the height of the auxiliary trap piece is higher than the highest water level of the washing water. In addition, cleaning water can be stored at a required level in the cleaning tank, and repairs can be carried out by pulling out the pump section from the front, improving workability during repairs.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view of a dishwasher showing an embodiment of the present invention, Fig. 2 is a sectional view of main parts of a dishwasher showing a second embodiment of the invention, and Fig. 3 is a dishwasher showing a conventional example. FIG. 3... Washing pump, 3... Drain pump, 14... Short cylinder part, 15... Washing tank,
16... Cap, 20a... Trap piece, 20b... Auxiliary trap piece.

Claims (2)

[Claims] (1) A cleaning tank, a cleaning pump and a drainage pump disposed at the bottom of the cleaning tank, and a short section with an open top on a part of the drainage pipe leading out in the horizontal direction on the discharge side of the drainage pump. A cylindrical portion is provided, the upper end of the short cylindrical portion is joined from below to a hole provided in the bottom of the cleaning tank, a cap is provided to cover the hole provided in the bottom from the inside of the cleaning tank, and the short cylindrical portion and A trap piece and an auxiliary trap piece are provided inside the cap, and the short tube part and the cap constitute a trap flow path, and the height of the auxiliary trap piece inside the cap is placed at a position higher than the highest water level of the washing water. dishwasher. (2) The dishwasher according to claim 1, wherein a suction port having a leftover filter is integrally molded on the side of the short cylindrical portion.