JPS591644Y2 - vacuum cleaner - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for discharging water that has entered the main body of a water-absorbing vacuum cleaner.

A water-absorbing type vacuum cleaner uses a conventional bypass-type electric blower that blows the dust-collecting airflow from the air intake port of the electric blower to the outer circumference of the fan case, and uses a float to sense the water level and shut off water absorption. Intrusion of water into the main unit is unavoidable, as water may be delayed, water may be sucked in as droplets due to the main unit's vibration, or water may flow into the main unit when the main unit falls over.

At this time, water may accumulate in the main body, causing problems such as metal parts such as the electric blower and screws rusting, and the accumulated water rotting and producing a bad odor.

The present invention eliminates the above-mentioned drawbacks of the conventional art, and embodiments thereof will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a vacuum cleaner body with a built-in electric blower 2, which is composed of two parts: an upper body 3 and a lower body 4.

Reference numeral 5 denotes a cooling fan installed behind the electric blower 2, which uses a centrifugal fan capable of controlling the pressure in order to obtain the pressure of the cooling air.

It is attached to the shaft 6 of the electric blower 2 via a spacer 7, a washer 8, and a washer 9, and is tightened with a bolt 10.

Reference numeral 11 denotes an electric blower cover A forming a cooling passage, which is paired with the electric blower cover B1□ and tightened with screws to form a cooling passage.

The electric blower 2 is attached to the electric blower 2 by tightening with screws via the packing A13.

14 is a packing B, which is supported between the field core 16 of the electric blower 2 and the electric blower cover 11, 12 in order to flow cooling air to the electric blower winding 15.

17 is an electric blower exhaust port provided in the fan case 18 of the electric blower 2.

A front support rubber 19 supports the front of the fan case 18 of the electric blower 2.

To fix the electric blower 2, the front part is supported by the lower body 4 via the support rubber 19, and the rear part is supported by the electric blower cover All,
The intake port 20 and exhaust port 21 of the electric blower cover B1° are held and fixed between the upper body 3 and the lower body 4.

Reference numeral 22 denotes a main body intake port provided integrally with the lower main body 4, and 23 indicates a filter support rib provided radially at the lower part of the lower main body 4, which prevents the filter 24 from coming into close contact with the lower main body 4 and opens the air passage. is formed.

Reference numeral 25 denotes a filter support screwed into the screw hole 4a provided at the bottom of the main body 4, which reinforces the filter support rib 23 and improves stability when only the main body 1 is placed on the floor. .

A drainage hole 4b is formed at the bottom of the screw hole 4a.

26 is a float that closes the main body intake port 22, and when water is sucked in, the water level is sensed by buoyancy, and water is prevented from being sucked into the electric blower 2.

The float 26 is attached by supporting the periphery of the float 26 with several filter support ribs 23, and supporting the lower part with a filter support 25.

Reference numeral 27 denotes a bag gasket made of an elastic material such as rubber, which is provided around the outer periphery of the filter 24 and is sandwiched between the dust collection box 28 and the lower main body 4 to keep the dust collection box 28 airtight.

Reference numeral 29 denotes a bag packing support, which is used to keep the shape of the packing 27 constant and to facilitate attachment and detachment of the filter 24.

30 is a dust collection box intake port formed integrally with the dust collection box 28;
1 is an intake guide provided corresponding to the dust collection box intake port 30;
This prevents suction matter such as dust and sewage from directly hitting the filter 28.

32 is a main body exhaust port formed integrally with the upper main body 3.

33 is a switch, 34 is a handle, and 35 is a cord stored in a cord storage section 36 provided around the entire circumference of the main body 1.

37 is a buckle provided on the dust collection box 28, which connects the main body 1 and the dust collection box 28.
It is for locking.

38 is a moving roller, and 39 is a caster roller.

In the above configuration, when the switch 33 is turned on, the electric blower 2
When the engine is operated, dust, sewage, etc. flow into the dust collection box 28 from the dust collection box intake port 30, are directed downward by the air intake guide 31, and coarse dust and sewage are accumulated in the dust collection box 28.

The airflow containing fine dust passes through the filter 24 and is filtered, and only air passes through the main body water intake port 22 between the filter support ribs 23, is sucked into the electric blower 2, and is exhausted from the main body through the exhaust port 17 of the fin case 18. It is exhausted to the outside air through the port 32.

At the same time, cooling air flows from the outside air into the intake port 20 through the cooling passage formed by the electric blower cover All and B1□, passes through the cooling fan 5, passes through the motor winding section, and passes through the fan case. The air is exhausted from the rear of the cooling passage 18 to the outside air through the cooling passage exhaust port 21.

Also, when sewage or the like is sucked in, the filter 24 is soaked in the sewage and the water is sucked up to the entire surface of the filter 24 by capillary action, and since the airflow passes through this, the water becomes mist and is sucked into the main body. If water accumulates inside the main body or if vibrations are applied while the main body 1 is in operation, water may turn into droplets and be sucked into the main body.

At this time, there is a screw hole 4a in the lower part of the front support rubber 19 on the lower part of the main body 4, and water will accumulate there, but since a drainage hole 4b is formed in the lower part, the water will drain away from this hole. The dust does not fall from the hole 4b into the dust collection box 28 and accumulate.
It can prevent metal parts from rusting due to water accumulation and bad odors from rotting sewage.

Furthermore, since this part is at the same pressure as the intake side, there is no performance deterioration such as exhaust leakage.

Note that the front support rubber 19 supporting the electric blower 2
From the viewpoint of vibration absorption function, it is preferable to provide a space 19a as shown in FIG. 6, and in this case, a column 19C that fits into the screw hole 4a is provided, and a water hole 19b that communicates with the drain hole 4b is provided. Space 19 a Water passage hole 1
Water can be drained from the drain hole 4b through the drain hole 9b.

The pillar 19C also has the effect of preventing the electric blower from rotating twice.

However, in this case, the space 19a is on the exhaust side of the electric blower 2, and some air will leak to the intake side, so a normally open check valve 19d is provided to prevent this.

This check valve 19d is closed by exhaust pressure during operation, but opens when operation is stopped to allow drainage.

As described above, according to the present invention, since water does not accumulate inside the main body, it is possible to reduce the occurrence of rust on metal parts, and also to prevent the occurrence of bad odors due to rotting sewage.

Furthermore, since the water is led to the dust collection box, no special work is required to dispose of the water, which greatly improves usability.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a vacuum cleaner showing an embodiment of the present invention;
Figure 2 is a front sectional view of the vacuum cleaner, Figure 3 is a side sectional view of the vacuum cleaner, Figure 4 is an exploded perspective view of the electric blower, and Figure 5 is an exploded perspective view of the electric blower.
The figure is an enlarged sectional view of the main part, and FIG. 6 is an enlarged sectional view of the main part in another embodiment. 1...Vacuum cleaner body, 2...Electric blower, 4...Support plate (bottom of main body), 4b...
Drain hole, 24...Filter 28...
Dust collection box.

Claims (1)

[Scope of utility model registration request] The vacuum cleaner body has a built-in electric blower, a dust collection box detachably connected to the lower part of the vacuum cleaner body, and a filter, and a support plate supporting the lower part of the electric blower has a dust collection box inside. A vacuum cleaner with a drainage hole that communicates with the drain hole.