JPH07116096A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To provide a vacuum cleaner in which sucked air passes through a wet-type dust collecting part after passing through a dry type dust collecting part, which can prevent the dry type dust collecting part from clogging, and which can enhance the dust collecting efficiency. CONSTITUTION:In a dry type dust collecting part, a spiral ventilating passage part 18 composed of a substantially funnel shaped dust trapping part 16 having an outlet port directed to a dust trapping container 15, and a pipe 17 supported with a center space of the dust tapping part is formed in a passage through which sucked air is led into a water pan 8 in a wet type dust collecting chamber. Since a suction port 13 is deviated from the center axis of the dust trapping part 16, a sucked air stream descents while it is swirled along the inner wall 19 of the trapping part 16, and reaches a suction hole 20 of the pipe 17. In this phase, relatively heavy dust or large dust in the sucked air impinge upon the inner wall 9 under centrifugal force, and are then dropped into the trapping container 15. Further, relatively fine and light dust passes through a spirally ventilating passage part 19 together with the sucked air and reaches the water pan 8 Where it is trapped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner, particularly a wet electric vacuum cleaner, which has improved dust collection efficiency.

[0002]

2. Description of the Related Art Generally, a dry type electric vacuum cleaner which collects dust by a filter such as paper or non-woven fabric is used to pass water that has been sucked into a water pan (water tray). Wet vacuum cleaners that capture dust are known. Unlike the dry type vacuum cleaner, this wet type vacuum cleaner does not cause local filter clogging, and theoretically can collect fine dust.

However, generally, the dust to be collected has different sizes and weights, and a wet type vacuum cleaner which is originally effective for fine dust has a limited amount of water in the water pan. On the other hand, when dust of any form and weight is inhaled, dust, dust, etc. float on the surface of the water in the water pan, sand, soil, etc. settle at the bottom, and general dust floats in the water. And the behavior of water as a dust collecting medium is likely to deteriorate. Moreover, when dust having a relatively large shape is sucked in, the degree of freedom with respect to the movement of water is extremely hindered, and there is a problem that the dust collecting portion is frequently cleaned.

Conventionally, in view of the above points, an electric vacuum cleaner having a filter including a dry dust collecting portion and a wet dust collecting portion so that the air passing through the dry dust collecting portion reaches the wet dust collecting portion. Is known (Japanese Utility Model Publication No. 5-39452, Japanese Utility Model Publication 57-16)
1955 publication). In this vacuum cleaner, a relatively large amount of dust is collected by the dry dust collecting unit, and fine dust that has passed through the dry dust collecting unit is collected by the wet dust collecting unit. It is possible to improve the dust collection efficiency.

[0005]

However, since the filter of the above-mentioned non-woven fabric or the like is used in this dry dust collecting part, it is not solved that the filter is not locally clogged. This invention has no clogging in the dry dust collecting part,
Moreover, it is an object of the present invention to provide an electric vacuum cleaner having high dust collection efficiency.

[0006]

SUMMARY OF THE INVENTION To solve the above problems, an electric vacuum cleaner according to the present invention is an electric vacuum cleaner having an electric blower and a filter provided in a passage of air moved by the blower. Wherein the filter comprises a wet dust collecting section having a water pan and a dry dust collecting section, and air passing through the dry dust collecting section reaches the wet dust collecting section. The dust part is coupled to a spiral ventilation path part that spirally guides air on the way to the wet dust collection part through the passage and a discharge port provided at the bottom of the spiral ventilation part. With a dust container,
Dust or large dust having a relatively high specific gravity contained in the air passing through the dry dust collecting portion collides with the wall surface due to centrifugal force when passing through the spiral ventilation path portion and falls,
The relatively fine and light dust contained in the air passing through the dry dust collecting portion from the discharge port into the dust collecting container passes through the spiral ventilation path portion together with the air, and the wet dust collecting portion. It is characterized in that it reaches the dust part and is picked up here. The water pan and the dust collecting container may be formed of a transparent container and may be detachably attached to the cleaner body.

[0007]

In the vacuum cleaner configured as described above, the intake air containing the sucked dust collects dust having a large specific gravity such as sand or large dust in the dry dust collecting portion, and the dry dust collecting portion is bent. Only relatively fine and light dust that follows the intake air through the ventilation path is struck by the water in the water pan of the wet dust collecting section, passes through and is collected.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a schematic cross-sectional view of a main body of an electric vacuum cleaner according to the present invention. An electric blower 2 is vertically fixed inside a main body case 1 via a vibration-proof elastic material 3, and a shaft on the intake port 4 side A separator (drainer) 6 is detachably provided at the tip of 5 using a fixing cap 7. A water pan (water tray) 8 formed of a transparent resin or the like is detachably attached to the main body case 1 by a clamp 9 above the electric blower 2. This water pan 8
Has an annular water storage part 10 and an intake port 11, and an exhaust port 12 at the center of the inside is open, and by being attached to the main body case 1, it is integrated with the intake port 4 of the electric blower 2. .

A flexible hose 14 connected from a suction port body (not shown) is connected to the intake port 13 of the main body case 1. Between the air intake port 13 and the air intake port 11 of the water pan 8, a substantially funnel-shaped dust catching part with its exit facing a dust catching container 15 formed of a transparent resin similar to that of the water pan 8. 16 and a spiral ventilation passage 18 composed of a pipe 17 supported in the central space of the dust collecting portion
Is provided.

When using this electric vacuum cleaner, the intake air containing the dust sucked from the suction port body (not shown) passes through the universal hose 14 and the spiral ventilation path portion 1 of the main body case 1.
Up to 8. Since the intake hole 13 is displaced from the central axis of the substantially funnel-shaped dust collecting portion 16, the intake air flow descends along the inner wall 19 of the dust collecting portion 16 while drawing a spiral. After that, it reaches the intake hole 20 of the pipe 17 supported at the center thereof. At this time, the relatively heavy dust or large dust in the intake air collides with the inner wall 19 due to the centrifugal force to lose the kinetic energy, and is accumulated in the dust container 15 through the lower outlet. The relatively light dust that follows the intake air flow of the spiral ventilation path portion 18 passes through the intake port 11 of the water pan 8 and is struck against the dust collecting water 21 previously stored in the annular water storage portion 10. Dust is collected by passing through. Both the dust collecting container 15 and the water pan 8 are transparent containers, and the amount of collected dust can be easily confirmed from the outside even during use. Therefore, the collected dust may be discarded if necessary. The flow of intake air is indicated by an arrow (→) in FIG. 1.

Further, reference numeral 22 in FIG. 1 is a screw portion for attaching the lid body 24 to the main body 23 of the water pan 8, and the lid body 24 is rotated by turning a handle 25 fixed to the lid body. The water pan 8 is detached from the main body 23 and the upper portion of the water pan 8 is opened. The fixing cap 7 can be turned by putting a hand through the opening. The pipe 17
Since the vicinity 26 of the intake port 11 is formed of a flexible member, the water pan 8 can be detached above the main body case 1 by removing the separator 6 and the clamp 9.

Reference numeral 27 is a lid attached to the dust collecting container 15, 28 is a hinge, and 29 is a handle of the dust collecting container 15. When removing the dust container 15 from the main body case 1, first, a clamp (not shown) is removed and the lower portion of the dust container 15 in the main body case 1 is rotated downward with the hinge 28 as an axis. . In this state, the dust container 15 is moved downward. At this time, the dust container 1
The lid 27 of No. 5 is adapted to be detached from the vicinity of the discharge port of the dust collecting portion 16 having the substantially funnel shape (or from the dust collecting container 15).

[0013]

Since the present invention is configured as described above, it does not require a filter pack as a consumable item unlike a dry type vacuum cleaner, and also causes local filter clogging. There is no. Therefore, the dust collection efficiency can be improved with a simple configuration while maintaining the characteristics of the conventional wet cleaner, and the frequency of troublesome water pan cleaning can be reduced. By the way, in the dry type dust collecting portion of the present invention, since dust is accumulated in the dust collecting container arranged at a position apart from the intake passage, there is no risk of clogging. The dry dust collecting section alone does not have sufficient dust collecting ability as the electric vacuum cleaner, but when combined with the wet dust collecting section, sufficient dust collecting ability as the electric cleaner can be obtained. Further, since both dust collecting portions are molded of transparent resin or the like and can be detached and attached, it is easy to grasp the amount of dust and clean it.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of the present invention.

[Explanation of symbols]

 1 Main Body Case 2 Electric Blower 3 Anti-Vibration Elastic Material 4 Intake Port 5 Shaft 6 Separator 7 Fixing Cap 8 Water Pan 9 Clamp 10 Annular Water Storage Section 11 Intake Port 12 Exhaust Port 13 Inlet Port 14 Free Hose 15 Dust Container 16 Approximate Rot -Shaped dust collecting part 17 Pipe 18 Spiral ventilation path part 19 Inner wall 20 Air intake hole 21 Dust collecting water 22 Screw part 23 Main body 24 Lid body 25 Handle 27 Lid body 28 Hinge 29 Handle

Claims (2)

[Claims] 1. An electric vacuum cleaner having an electric blower and a filter provided in a passage of air moved by the blower, wherein the filter includes a wet dust collecting section having a water pan, and a dry dust collecting section. And the air that has passed through the dry dust collecting section reaches the wet dust collecting section, wherein the dry dust collecting section removes air on the way to the wet dust collecting section through the passage. It has a spiral ventilation path portion that guides in a spiral shape, and a dust container that is coupled to a discharge port provided at the bottom of the spiral ventilation passage portion, and is included in the air that passes through the dry dust collection portion. The relatively high specific gravity of dust or large dust collides with the wall surface due to centrifugal force when passing through the spiral ventilation path portion and falls,
The relatively fine and light dust contained in the air passing through the dry dust collecting portion from the discharge port into the dust collecting container passes through the spiral ventilation path portion together with the air, and the wet dust collecting portion. An electric vacuum cleaner that reaches the dust part and is picked up here. 2. The electric vacuum cleaner according to claim 1, wherein the water pan and the dust collecting container are transparent containers and are detachably attached to the cleaner body.