JPH0415028A - Tableware washing machine - Google Patents

Abstract

PURPOSE:To detect the water leak due to the rise of the water level in a cleaning tank and detect the leak of water due to other reasons by forming the bottom plate of a base frame arranged on the outer periphery of a body bottom part into nearly recessed form and installing a water detecting means inside. CONSTITUTION:A bottom plate 18 is formed into nearly recessed form, having the outer periphery projecting upwardly, and fixed on a base frame 16 from the below. When the water level in a cleaning tank 14 becomes abnormally high because of the trouble of a water level detector 17 or a water supply device 20, and water overflows from the cleaning tank 14, the overflowing water is collected on the bottom plate 18, as the bottom plate 18 has a recessed structure having the outer periphery projecting upwardly. Since a water detecting means 19 is installed inside the bottom plate 18, the water which leaks from the bottom plate 18 can be detected. Accordingly, the operation stop and the information of abnormally can be disposed of by a controller 21 on the basis of the signals.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a dishwasher having water detection means at the bottom of the main body.

BACKGROUND OF THE INVENTION A schematic structure of a conventional dishwasher will be described with reference to FIG. A washing tank 2 is arranged inside the main body 1 of the dishwasher, and the washing water in the washing tank 2 is sucked in from the drain hole 5 by a washing pump 4 rotated by a motor 3, and the upper and lower parts are washed. It is sent under pressure to Nosurire 6. The washing water vigorously jetted from the washing nozzle 6 collides with the tableware 8 arranged in an orderly manner on the upper and lower heels 7 to perform washing. 9 is a control device provided in s1o, and 11 is a water level detection device for detecting the water level in the cleaning tank 2. Washing water is supplied into the washing tank 2 by a water supply device 13 connected to a pipe 12, the water level is detected by a water level detection device 11, and water is supplied at a set water level 1. If the water level in the washing tank 2 becomes abnormally high during operation and reaches a preset abnormal water level, and the water level detection device 11 detects this, the control device 9 will stop the operation of the dishwasher and drain the water. A pump (not shown) is operated and an abnormality is notified.

Problems to be Solved by the Invention However, with such a conventional structure, an abnormal water level in the cleaning tank 2 can be detected, but water leaking from the cleaning tank 2, cleaning pump 4, piping 12, etc., for example, cannot be detected. It had the problem ζ that it could not be detected. The present invention solves the above-mentioned problems, and an object of the present invention is to provide a dishwasher that can detect water leaking out of the washing tank.

Means for Solving the Problems In order to achieve the above object, the present invention has a bottom plate that covers the bottom of the underframe disposed on the outer periphery of the bottom of the main body, and has a substantially concave shape, and a water detection means is provided inside the bottom plate. It is something that

Function: With the above-described configuration, the dishwasher of the present invention can receive water leaking out of the washing tank with the substantially concave bottom plate, so that water leakage abnormalities can be detected by the water detection means provided inside the bottom plate. It is something.

EXAMPLE Hereinafter, an example of the present invention will be explained based on FIGS. 1 and 2. Note that the basic structure of the dishwasher is the same as the conventional one, so the explanation thereof will be omitted. In the figure, 14 is the main body 1
A cleaning tank provided in the cleaning tank 5, an underframe forming the bottom outer periphery of the 16-piece main body 16, and a water level detection device 17 for detecting the water level in the cleaning tank 14.

The bottom plate 18 is provided in a substantially concave shape with its outer periphery projecting upward, and is fixed to the underframe 16 from below. Reference numeral 19 denotes water detection means provided inside the bottom plate 18, such as a tJ type or a float type Nuinochi.

With the above configuration, even if the water level in the cleaning tank 14 becomes abnormally high and overflows from the cleaning tank 14 due to a failure of the water level detection device 17 or the water supply device 20, the bottom plate 18
has a substantially concave structure with its outer periphery protruding upward, so overflowing water accumulates on the bottom plate 18.

Since a water detection means 19 is provided inside the bottom plate 18, it is possible to detect leaked water, and based on the signal, the control device 21 can take actions such as stopping operation or notifying abnormalities. It becomes possible to take appropriate measures.

Furthermore, even if water leaks other than the rise in the water level in the cleaning tank 14, for example, if water leaks from the cleaning tank 14, the cleaning pump 22, or the piping 23, the bottom plate 18
Since water accumulates on the top, the water detection means 19 can detect this.

Since the bottom plate 18 has a substantially concave shape with its outer periphery projecting upward and is configured to collect leaked water, the water detection means 19 detects water leakage, and the control device 21 controls the operation of the dishwasher. If water leaks outside the dishwasher when it is discontinued, there is no problem. Further, since the bottom plate 18 is fixed to the underframe 16 from below as a separate part from the main body 16 and can be easily removed, the interior of the main body 16 can be easily repaired.

Effects of the Invention As described above, in the present invention, the bottom plate that covers the bottom of the underframe disposed on the outer periphery of the bottom of the main body is configured to have a substantially concave shape, and a water detection means is provided inside the bottom plate, so that no water can be detected inside the cleaning tank. By collecting water on the bottom plate, it is possible to detect abnormalities such as water leakage due to a rise in the water level or water leakage from other parts. Furthermore, since the structure is such that leaked water is stored in the bottom plate provided in a substantially concave shape, when the water detection means detects a water leak and the operation of the dishwasher is stopped, there is almost no water leakage to the outside of the machine. Furthermore, since the bottom plate can be easily removed from the underframe, the interior of the main body can be easily repaired.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a dishwasher according to an embodiment of the present invention, FIG. 2 is a schematic sectional view of the same structure, and FIG. 3 is a schematic sectional view of a conventional dishwasher. 14...Cleaning tank, 16...Main body, 16
...Underframe, 18...Bottom plate, 19...
...Water detection means. Name of agent: Patent attorney Shigetaka Awano and 1 other person 1to -1I1 5-51 books (--f: 1--1〆6α; 9---Ei Achi 1 cough wash! +1 Makukai wo Koichiμ, <vrthf+-s- yo-1/k month 41 51-・#IjguS, 1 21- Missing item゛5g23-・-#?+Cao i

Claims (1)

[Claims] A washing tank having a washing means, a main body covering the washing tank from the outside and forming an external part, an underframe disposed on the outer periphery of the bottom of the main body, a bottom plate covering the bottom of the underframe, and a water detection means. . A dishwasher, wherein the bottom plate has a substantially concave shape, and the water detection means is provided inside the bottom plate.