JPH0112696Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial use) This invention applies to strainers for dishwashers.
Specifically, the present invention relates to a strainer used for filtering washing water for washing dishes.

(Prior Art) Various strainers of this type have been provided in the past, but they are generally difficult to attach and detach when cleaning or replacing filter media with limescale or foreign matter attached, and it is difficult to clean or replace the filter media. The disadvantage was that the work efficiency of replacement etc. was poor.

In addition, if the cleaning tank has a structure in which the cleaning water suction port is provided below the liquid level, in other words, if the suction port is installed below the liquid level, when suction is drawn from the suction port via a pump, the top of the suction port This has the disadvantage that a vortex is created and the air is sucked in by the pump along with liquid such as cleaning water, reducing the effectiveness of the pump.

(Effects of the invention) The present invention was proposed in view of the above points, and its purpose is to make it easy to attach and remove the filter medium, and to easily and quickly perform tasks such as cleaning and replacing the filter medium.
Another object of the present invention is to provide a strainer for a dishwasher that has a simple structure and does not reduce the effectiveness of the pump.

(Structure of the idea) The present invention will be explained below with reference to the drawings.

In FIGS. 1 to 3, reference numeral 1 denotes a cleaning tank whose side surface is approximately L-shaped, and support legs 2 are hung from the four corners of the bottom surface of the tank. Further, washing water W containing detergent is stored inside the washing tank 1, and the washing water W is pumped up as described below by a type of pump including a motor 3 fixed to the front plate 1a of the washing tank 1. It is used to wash dishes.

That is, a substantially oval casing 4 is attached to the inner surface of the front plate 1a of the cleaning tank 1 so as to surround the output shaft of the motor 3, and an impeller 5 is mounted inside the casing 4 integrally with the output shaft of the motor 3. installed.

An opening 4a is formed in the casing 4 in front of the impeller 5, and an open free end 6a of a cylindrical cover 6 constituting the strainer according to the present invention is detachably attached to the opening 4a. It is becoming.

The strainer according to the present invention is constructed as shown in FIG. 4 in detail. In the same figure, the cylindrical cover 6 is formed into a substantially cylindrical shape with a bottom, and the end opposite to the free end 6a is attached to the back plate 1 of the cleaning tank 1.
A U-shaped support plate 7 fixed to b is supported by a pivot 8, and the free end 6a is configured to be freely rotatable upward. Here, a coil spring 9 is inserted between the end bottom plate of the cylindrical cover 6 and the support plate 7, and the pivot 8 is engaged in the elongated hole 7a of the support plate 7. Therefore, the cylindrical cover 6 can move slightly in the direction of the back plate 1b while resisting the coil spring 9.

In addition, a cylindrical cover 6 installed in a substantially horizontal direction
A plurality of relatively large-diameter water intake ports 6b are bored along the axial direction and at appropriate intervals on the lower circumferential surface of the cylindrical cover 6. A substantially cylindrical filter medium 10, such as punched metal, having holes formed over the entire surface thereof is inserted. Here, the water inlet 6b is provided on the lower circumferential surface of the cylindrical cover 6 because, for example, if the water inlet is provided on the upper circumferential surface of the cylindrical cover 6, the water level will drop as the cleaning water W decreases. This is to prevent air from being sucked in through the water intake port and reducing the effectiveness of the pump.

Again, in FIGS. 1 to 3, the casing 4 has another opening 4b alongside the opening 4a.
is provided (see Figure 1), and this opening 4
A water supply pipe 11 erected upward is connected to b, and a rotatable cleaning nozzle 12 and the like are arranged at the upper part of this water supply pipe 11, and a strainer, a casing 4, and a water supply pipe 11 are disposed at the top of the water supply pipe 11. The cleaning water W sucked up by a pump consisting of a motor 3, an impeller 5, etc. is injected upward through the pump.

In addition, in FIG. 1, 13 is a box-shaped washing machine main body, and by pulling up the handle 14, this main body 13
moves upward to form a space in which a container containing a rack (not shown) stored above the cleaning tank 1 can be taken in and taken out. Also, 15
indicates a window for internal monitoring.

The strainer according to the present invention sucks the washing water W through the filter medium 10 when washing dishes, and supplies the water from the free end 6a of the cylindrical cover 6 to the water supply pipe 11 through the openings 4a and 4b of the casing 4. The filter medium 10 acts to remove limescale and foreign matter contained in the washing water W. In addition, in order to remove the strainer for cleaning, inspection, replacement, etc. of the filter medium 10, first push the cylindrical cover 6 shown by the solid line in FIG. 4 toward the back plate 1b against the coil spring 9 and move it slightly. and remove the free end 6a from the opening 4a of the casing 4. Thereafter, the cylindrical cover 6 is rotated upward as shown by the imaginary line in FIG. Thereafter, the cylindrical cover 6 is rotated to a horizontal position while being pressed again toward the back plate 1b, the free end 6a and the opening 4a are aligned, and the restoring force of the coil spring 9 engages them. That's fine.

(Effect of the invention) As described above, according to the invention, one end is pivotally supported inside the cleaning tank in which cleaning water is stored, and the other open free end is A cylindrical cover that can be engaged with and communicated with an opening of a casing that surrounds an impeller disposed inside the cleaning tank and that is mounted in a substantially horizontal direction; A water inlet is provided on the lower peripheral surface of the cylindrical cover for sucking in the washing water using a pump, and the cylindrical cover is moved toward the support plate by a spring. Because it can be moved and removed freely, the cylindrical cover or filter medium can be attached and removed with extremely simple operations, and the filter medium can be cleaned and replaced easily and quickly.The structure is also simple and inexpensive to manufacture. It has advantages such as:

In addition, since the suction port is formed on the lower peripheral surface of the cylindrical cover and the suction port does not face the liquid surface, it is possible to prevent air from flowing in from the suction port during suction and reducing the effectiveness of the pump. I can do it.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention. Figure 1 is a front view of a dishwasher to which the present invention is applied, Figure 2 is a side view showing the internal structure of the main parts, and Figure 3 is the same. 4A is a partially cutaway side view of the present invention, FIG. 4B is a plan view of the same, and FIG. 5 is a perspective view of the filter medium. DESCRIPTION OF SYMBOLS 1... Washing tank, 3... Motor, 4... Casing, 4a, 4b... Opening, 5... Impeller, 6... Cylindrical cover, 6a... Free end, 6b
...Water inlet, 7...Support plate, 8...Pivot, 9...
Coil spring, 10...filter medium, W...washing water.

Claims (1)

[Scope of utility model registration request] One end is pivotally supported inside a cleaning tank in which cleaning water is stored via a support plate, and the other open free end surrounds an impeller disposed inside the cleaning tank. A cylindrical cover that can engage and communicate with the opening of the casing and is installed in a substantially horizontal direction, and a removable filter material that is disposed inside the cylindrical cover, and is provided below the cylindrical cover. The tableware is characterized in that a suction port is provided around the periphery for sucking in the washing water using a pump, and the cylindrical cover is moved toward the support plate against a spring to be detachable. Strainer for washing machine.