CN201067392Y - Dish washing machine cleaning apparatus - Google Patents

Abstract

A dishwasher cleaning device of the utility model is based on the existing spray type dishwasher cleaning device. A compressed air intake pipe enters from the lower section of the hollow rotating shaft, extends to the top of the hollow rotating shaft, and is compressed by an air compressor. The passed hollow enters the compressed air inlet pipe through a one-way valve, and then reaches the top of the hollow shaft and is discharged from the small hole of the exhaust head, where it meets the water pressurized by the water pump, generating a large number of air bubbles in the water. The water mixed with a large number of air bubbles is sprayed from the nozzles on the spray arm, forming faster mist-like water droplets that disperse and wash the tableware; The beads scour the dishes more evenly, improving dishwashing results.

Description

A dishwasher cleaning device

technical field

The utility model relates to a washing machine cleaning device.

Background technique

The hollow rotating shaft of the existing dishwasher cleaning device is directly connected with the water pump. Such a cleaning device has the following disadvantages:

1. The water sprayed from the nozzle on the spray arm is columnar water, so the distribution range is not wide enough, and the water sprayed on the tableware is not uniform enough.

2. The speed of the water column sprayed from the nozzle on the spray arm is relatively slow, and the effect of cleaning tableware is relatively poor.

3. The rotational torque of the spray arm is small, and the rotational speed of the spray arm is relatively slow.

Utility model content

The purpose of the utility model is to provide a dishwasher cleaning device with better washing effect, which can overcome the shortcomings of the existing dishwasher cleaning devices.

The utility model dishwasher cleaning device comprises: an inner box of the dishwasher, a pool at the bottom of the inner box, a water pump connected with the pool, a hollow rotating shaft connected to the water pump and extending into the inner box, and mounted on the hollow shaft , The rotatable spray arm extends from the lower section of the hollow shaft and extends to the compressed air intake pipe at the top. The top of the compressed air intake pipe is closed, and there are many small holes near the closed end to form the exhaust head and supply air to the compressed air intake pipe. air compressor.

With the dishwasher cleaning device of this structure, the compressed air expelled by the air compressor is discharged from the small hole of the exhaust head at the top of the compressed air inlet pipe and merged with the water extruded by the water pump. Produces a lot of air bubbles in the water. The water mixed with a large number of air bubbles is sprayed from the trumpet-shaped nozzle on the spray arm. The expansion of the sprayed air bubbles will tear the sprayed water into pieces, that is, mist-like water droplets, and push these mist-like water droplets to rush to the target. Wash the dishes. The speed of these mist-like water droplets, in addition to including the kinetic energy transformed by the pressure of the sprayed water, also includes the kinetic energy of the sprayed bubble expansion to push the mist-like water droplets forward, so the speed of the water droplets is greater than the speed of a water column with the same pressure sprayed alone ; and the sprayed mist water spreads out in a cone shape and is more widely distributed. The spray arm is subjected to the reaction force of the sprayed water, and more comes from the reaction force generated by the expansion of the sprayed air bubbles to push it to rotate faster. The mist water droplets are evenly and quickly sprayed onto the tableware to be cleaned, which improves the washing efficiency.

Description of drawings

Below in conjunction with the accompanying drawings, the utility model dishwasher cleaning device will be further described in detail.

Fig. 1 is a structural schematic diagram of an existing dishwasher cleaning device.

Fig. 2 is a sectional view of a spray arm nozzle of a conventional dishwasher cleaning device.

Fig. 3 is a structural schematic diagram of the dishwasher cleaning device of the present invention.

Fig. 4 is a schematic diagram of the appearance of the air spray head of the compressed air inlet pipe of the dishwasher cleaning device of the present invention.

Fig. 5 is a sectional view of the spray arm nozzle of the dishwasher cleaning device of the present invention.

Detailed ways

As shown in Figure 1, the existing dishwasher cleaning device includes a dishwasher inner box 1, a pool 2, a water pump 3, a hollow shaft 4, and a spray arm 5, and the water pressurized by the water pump 3 passes through the hollow shaft 4 from the spray arm 5. Nozzle 51 sprays (shown in Figure 2), washes tableware.

Fig. 3 shows a structural schematic diagram of the dishwasher cleaning device of the present invention. Including: dishwasher inner box 1, pool 2, water pump 3, hollow shaft 4, spray arm 5, compressed air intake pipe 6, air compressor 7, air electric heater 8, one-way valve 9 and mufflers 10.

The water in the pool 2 li is pressurized into the hollow rotating shaft 4 through the water pump 3 and reaches the top end. Add compressed air through the air compressor 7 and enter the compressed air intake pipe 6 through the check valve 9 and the air electric heater 8, and enter the compressed air intake pipe 6 from the top of the hollow rotating shaft 4 The water sprayed out from the hole merges with the water pumped out by the water pump 3 to generate a large number of air bubbles in the water. The water mixed with a large number of air bubbles is sprayed from the nozzle 52 (shown in FIG. 5 ) of the spray arm 5 to form mist water droplets, rushing towards the tableware to clean the tableware. In order to prevent the water pumped out by the water pump 3 from entering the air compressor 7, a check valve 9 is installed in the compressed air pipeline. In order to reduce the noise produced by the dishwasher, a muffler 10 is installed on the air outlet of the dishwasher inner case 1 .

After the dishwasher finishes washing the tableware, just stop the water pump 3, and then energize the air electric heater 8, so that the heated compressed air is sprayed from the nozzle 52 on the spray arm 5, and the spray arm 5 is under the reaction force of the sprayed air at the same time. Swirls to blow hot air over freshly wet dishes to dry them.

Claims (4)

1. cleaning unit of dish washer, it comprises: the interior case (1) of dish-washing machine, the pond (2) of interior case (1) bottom, the water pump (3) that is connected with pond (2), be connected on the water pump (3), and reach the hollow rotating shaft (4) of interior case (1) the inside, be contained on the hollow rotating shaft (4), rotating spray arm (5), put in from hollow rotating shaft (4) hypomere, and extend to the compressed air inlet pipe (6) of Xiang Duan, give the air compressor machine (7) of compressed air inlet pipe (6) air feed, it is characterized in that: have many apertures to constitute jet thrust (61) near the pipe arm the top closure of described compressed air inlet pipe (6), blind end.

2. according to the described cleaning unit of dish washer of claim 1, it is characterized in that: described hollow rotating shaft (4) compressed air inlet pipe (6) in addition is connected with an air electric heater (8), and then connects a check valve (9), is connected at last on the air compressor machine (7).

3. according to the described cleaning unit of dish washer of claim 1, it is characterized in that: the nozzle (52) on the described spray arm (5) is horn-like outside opening.

4. according to the described cleaning unit of dish washer of claim 1, it is characterized in that: on the exhaust outlet of case (1) muffler (10) is housed in described.

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