JPH03237962A - Dish-washing machine - Google Patents

Abstract

PURPOSE:To improve the working efficiency for assembly and repair, by a method wherein a pump unit part for which a washing pump part and a drain pump part are joined with each other is supported on a frame part through an elastic body in order to be shifted at least in the direction of one way. CONSTITUTION:A suction part 19 for a washing pump part 18 is connected to a washing receptacle 15 through an O-ring 27, with capscrews 28. A discharge opening part 20 has a female screw part 29, and both a sealing member 30 and the washing receptacle 15 are held between a nozzle bearing part 17 and the discharge opening part 20. For a drain pump part 22, a cylindrical projection 31 is formed and fitted to a rear wall of a frame part 25 through a rubber-made bushing 32. When a pump part is take out, a lower cover 26 is removed, and both the capscrews 28 and the nozzle bearing part 17 are loosened and removed, and the washing pump part 18 is pulled on the side of a worker. In this way, the projection 31 on the drain pump part 22 is disconnected from the frame part 25 and a unit part consisting of the washing pump part 18, so that the drain pump part 22 and a water quantity-detecting part 24 can be taken out.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a dishwasher for general household use that is easy to repair and assemble.

BACKGROUND OF THE INVENTION Conventionally, this type of dishwasher has been constructed as shown in FIG. In Fig. 3, 1 is a washing tank that stores tableware 2 and stores washing water at the bottom, 3 is a washing pump that draws up the washing water and sprays it onto the tableware from a washing nozzle 4, and 5 supports the dishwasher. 6 is a discharge pump that is fixed to the underframe 5 using a downward screw and discharges the cleaning water in the cleaning tank 1.

Reference numeral 7 denotes a pressure-type water amount detection section fixed to the rear part of the underframe 6 and detects the amount of washing water accumulated in the washing tank 1. The washing pump 3 has a nozzle bearing section 8 that supports the washing nozzle 4 at its discharge port. It is provided with a D threaded portion 9 to be screwed together, and is supported with the cleaning tank 1 sandwiched therebetween via a sealing member. An opening 10 was provided at the bottom of the casing and the underframe 5, and this opening 10 was fixed by a bottom plate 11 with a downward screw.

Problems to be Solved by the Invention In such a conventional configuration, if the washing pump 3 or the drain pump 6 breaks down, due to the nature of the dishwasher product, fish bones, toothpicks, etc.

It is extremely rare for foreign objects such as pieces of tableware or rubber bands to get caught, or even to get stuck. When attempting to repair this, the dishwasher was turned upside down and the bottom plate 11 of the underframe 5
It was necessary to take out the cleaning pump 3 or the drain pump 6 by removing the pump. In particular, as shown in FIG. 4, the proportion of dishwashers 13 built into system kitchens 12 is increasing, as shown in FIG. in this case,
- It is necessary to pull out the entire dishwasher 13 from the system kitchen 12. However, the repair work was very costly, as it required connecting the water supply and drainage pipes, opening the lid 14 of the dishwasher 13, and removing a stopper (not shown) to prevent it from tipping over when a load was applied. It had become. Also, from a safety perspective, some dishwashers have a frame 6
Some aircraft have a function that detects water leaking inside the aircraft and shuts off the water supply. In this case, since it is not possible to provide an opening of 1° in the underframe 6, there was a problem that repair would be difficult if the water leak detection function of the conventional structure 11 was provided.

Furthermore, from the viewpoint of ease of assembly, since the bottom plate 11 and the drainage pump 6 are screwed from the bottom of the underframe 5,
During the assembly process, there are two steps to turn the product upside down.
The problem was that it took a long time to assemble, and at the same time it was a huge waste of equipment, which also caused an increase in the price of a dishwasher.

The present invention solves these problems by allowing repair of the washing pump and drain pump from the front of the dishwasher, and also eliminates the work of mounting the washing pump and drain pump from the top of the frame during assembly. The primary purpose of this is to significantly improve assembly workability.

The second purpose of the present invention is to save space by allowing the cleaning pump to be pulled out from the front even if the distance between the underframe and the bottom of the cleaning tank is narrow, and to reduce the amount of cleaning water stored in the cleaning tank. The third objective is to improve the repair workability of the water amount detection section that detects the amount of water.

Means for Solving the Problems In order to achieve the first object, the present invention has a cleaning pump section and a drain pump section connected together to form a pump unit section, and the pump unit section is moved in at least one direction. is supported by the underframe via an elastic body so that it can be moved. Further, in order to achieve the second object (a), a female threaded portion is provided for screwing together the discharge portion of the cleaning pump portion and the nozzle bearing portion that supports the cleaning nozzle through the cleaning tank. Furthermore, in order to achieve the third object, a water amount detection section for detecting the amount of washing water stored in the washing tank is attached to the pump unit section.

Function: With this configuration, the washing pump, drain pump, and water amount detection section are connected to each other to form a pump unit section, which is supported by the frame section so as to be movable in the front-rear direction of the dishwasher.
By unfastening the cleaning tank from the pump unit, the pump unit can be taken out of the dishwasher through a small space below the front of the dishwasher. Moreover, after the pump unit part is fixed to the underframe part, the cleaning tank can be mounted and then the washing tank and the pump unit part can be fixed.

The dishwasher can be assembled by stacking the parts without turning it upside down.

Embodiment FIG. 1 is a sectional view of a dishwasher according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the pump unit showing a state in which the pump unit section is removed. The external view when the dishwasher is installed in the system kitchen is the same as Fig. 4.

In FIGS. 1 and 2, reference numeral 16 indicates a washing tank for storing tableware, and 16 indicates a washing nozzle rotatably supported in the center of the washing tank 16, which sprays washing water toward the tableware. A nozzle bearing part 18 supports the cleaning nozzles 1 and 6; a cleaning pump part 18 supports the cleaning tank 15, the suction part 19, and the discharge port 20 and sends cleaning water to the cleaning nozzle 16;
21 is a motor that is supported by the cleaning pump unit 18 and serves as its driving source; 22 is a drain pump unit that is attached to the rear of the motor 21 via a support fitting 23 and drains the cleaning water in the cleaning tank 16; 24 is a motor Water amount detection unit attached to the rear of 21,
Reference numeral 25 represents a frame portion that supports the entire dishwasher, and reference numeral 26 represents a lower lid that is removably provided below the front surface of the dishwasher. The suction section 19 of the cleaning pump section 18 is fixed to the cleaning tank 15 with a screw 28 via a circle 27, and the discharge port 2o has a female threaded section 29 (dotted line) and is connected to a sill member 30 by the nozzle bearing section 17. It is supported with the cleaning tank 15 sandwiched therebetween. Further, the drain pump section 22 is provided with a cylindrical protrusion 31 which is inserted into the rear wall of the frame section 25 via a rubber bush 32. The water amount detection section 24 detects water pressure using a diaphragm through a trap section 33 (dotted line) and a hose 34 (dotted line) provided in the suction section 19 of the cleaning pump section 18 to determine the water amount. .

The operation of the above configuration will be explained. If a malfunction occurs such as a malfunction of the water amount detection section 24 due to foreign matter getting stuck in the washing pump section 18 or the drain pump section 22, first - remove the lower cover 26 from the front of the dishwasher 13; Next, loosen and remove the screws 28 and nozzle bearing part 17 from the cleaning tank 16, and pull the cleaning pump part 18 toward you while supporting it with your hand. The attached unit parts of the cleaning pump part 18, the drain pump part 22, and the water amount detection part 24 can be taken out together. inside,
When installing the unit, the work can be done extremely easily by performing the reverse operation to that described above.

As for the method of assembling the case, when placing the unit formed by the cleaning pump section 18, the drainage pump section 22, and the water amount detection section 24 on the underframe section 25, the suction section 1 of the cleaning pump section 18 is assembled.
If a support jig 35 (-dotted chain line) is used below 9, positioning can be easily performed with the protrusion 31 of the drainage pump section 22, and the cleaning tank 15 can be placed and fixed after performing work such as piping connection. This eliminates the need to turn the dishwasher upside down.

Effects of the Invention As described above, according to the present invention, the cleaning pump part, the drain pump part, and the water amount detection part are connected to form a unit, and this unit is attached to the underframe part so that it has a degree of freedom in at least one direction. By supporting the dishwasher through an elastic body, it can be installed and removed very easily from the small space below the front of the dishwasher, which greatly improves repair work. In particular, built-in type systems called built-in kitchens are extremely effective because they are difficult to put in and take out. The present invention is also indispensable in the case where the five-frame frame is designed to collect water and a safety function for detecting water leakage inside the machine is provided. Furthermore, according to the present invention, it is possible to assemble the parts by stacking them one after another on one frame, and there is no need to turn the parts upside down, thereby improving work efficiency.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a dishwasher showing an embodiment of the present invention;
Figure 2 is a cross-sectional view showing the pump unit removed, Figure 3 is a cross-sectional view of a conventional dishwasher, and Figure 4 is a perspective view of the dishwasher installed in a system kitchen. It is. 17...Nozzle bearing part, 18...Cleaning pump part.

Claims (3)

[Claims] (1) A washing tank that stores tableware, a washing nozzle that is rotatably supported in the center of the washing tank and that spouts washing water toward the tableware, and a washing nozzle that directs the washing water stored in the washing tank to the washing nozzle. The washing pump part includes a washing pump part for feeding, a drainage pump part for discharging washing water from the washing tank to the outside of the machine, and a frame part located at the bottom of the dishwasher and supporting the entire machine body, the washing pump part and the drainage pump part. a dishwasher, the pump unit being supported by the underframe via an elastic body so as to be movable in at least one direction. (2) The dishwasher according to claim 1, wherein the discharge port of the washing pump section is provided with a female threaded section that is threadedly engaged with a nozzle bearing section that supports the washing nozzle through the washing tank. (3) The dishwasher according to claim 1, further comprising a water amount detection section that detects the amount of washing water stored in the washing tank and is attached to the pump unit section.