JP2019088539A - Vacuum cleaner - Google Patents

Abstract

To provide a vacuum cleaner for reliably preventing a reverse flow of dust.SOLUTION: A dust box unit 1 includes: a dust box 11 having a dust box inlet port 1a near a bottom part and a dust box outlet port 1b on the opposite side; a non-return valve packing material 12 fixed to one of right and left sides of the dust box inlet port 1a so as to clog the dust box inlet port 1a of the dust box 11; a dust storage chamber 13 arranged under the non-return valve packing material 12; a cylindrical dust collection filter 14 arranged in the dust box outlet port 1b; and a filter gasket 15 for fixing the dust collection filter 14 to the dust box 11. The dust storage chamber 13 includes: a flat part 131 extending from the bottom part of the dust box 11; and an inclination part 132 inclined with respect to the flat part 131, and then is formed to be a wedge-shape space.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vacuum cleaner using a dust box unit.

  In general, some conventional manual small-sized vacuum cleaners also have a dust container (corresponding to a dust box) and a dust collection filter (see: Patent Document 1). That is, in a combination of a front cylinder having an air inlet and a rear cylinder having an air exhaust valve and a rubber bag as suction means, a dust container (equivalent to a dust box) is provided in the discharge hole of the front cylinder; A dust collection filter and an air exhaust valve (equivalent to a check valve) are provided between the front cylinder and the rear cylinder. At the time of suction operation, the air exhaust valve opens and suction air flow from the front cylinder to the rear cylinder. At this time, dust is received by the dust collection filter, and dust falling by gravity in front of the dust collection filter is collected in the dust storage container.

Utility model registration 3132978 gazette

  However, in the above-described conventional manual type small vacuum cleaner, when the vacuum cleaner inlet is directed downward after the cleaner is turned off, the check valve is not present between the air inlet and the dust container. There is a problem that the dust accumulated in the dust storage container flows back to the intake port.

  In order to solve the above-described problems, a vacuum cleaner according to the present invention comprises a vacuum cleaner inlet, a vacuum cleaner outlet, and an electric blower fan provided between the vacuum cleaner inlet and the vacuum cleaner outlet. A dust box unit provided between the vacuum cleaner inlet and the electric blower fan, the dust box unit having a dust box inlet near the bottom, and a dust box having a dust box outlet on the opposite side of the dust box inlet; And a check valve packing provided to close the dust box suction port, a dust storage chamber provided between the lower portion of the check valve packing and the bottom of the dust box and protruding to the upstream side of the dust box suction port; And a dust collection filter provided at the exhaust port.

  According to the present invention, even if the dust box unit is inclined or directed downward and the check valve packing is slowly closed, dust collected in the dust box unit naturally enters the dust storage chamber, so that backflow of dust can be reliably prevented.

The embodiment of the vacuum cleaner which concerns on this invention is shown, (A) is an upper side figure, (B) is a side surface side perspective view, (C) is a lower surface side perspective view. It is an II-II line sectional view of (A) of Drawing 1, (A) is a general view, and (B) is an enlarged drawing of a dust box unit part. It is a perspective view explaining the attachment or detachment of the dust box unit of FIG. 1, FIG. It is a disassembled perspective view of the dust box unit of FIG. 1, FIG. It is a perspective view which shows the detail of the dust box unit of FIG. 1, FIG. It is a figure for demonstrating the suction operation of the vacuum cleaner of FIG. 1, FIG. It is a figure for demonstrating the attraction | suction completion | finish operation | movement of the vacuum cleaner of FIG. 1, FIG. It is sectional drawing which shows the example of a change of the dust storage chamber of FIG.

  FIG. 1 shows an embodiment of a vacuum cleaner according to the present invention, wherein (A) is a top view, (B) is a side perspective view, and (C) is a bottom perspective view. 2 is a cross-sectional view taken along the line II-II in FIG. 1A, in which FIG. 2A is an overall view and FIG. 2B is an enlarged view of a dust box unit portion.

  1 and 2, the dust box unit 1 has a dust box 11 having a dust box intake port 1a near the bottom and a dust box exhaust port 1b on the opposite side, and covers the dust box intake port 1a of the dust box 11 so as to close the dust box intake port 1a. Check valve packing 12 fixed to any one side, dust storage chamber 13 provided at the lower part of check valve packing 12, cylindrical dust collection filter 14 provided at dust box exhaust port 1b, and dust collection It comprises a filter gasket 15 for fixing the filter 14 to the dust box 11. The dust box intake port 1 a is provided at the lower portion of the side wall surface of the dust box unit 1 on the vacuum cleaner intake port 4 a side, that is, on the bottom side of the dust box 11. The dust box unit 1 is housed in a housing constituted by the front panel 2a and the back panel 2b, but can be removed from the housing (2a, 2b) by pressing the knob 3. That is, the dust box unit 1 is detachable to the housings (2a, 2b).

  The dust chamber 13 is composed of a flat portion 131 which is an extension of the bottom portion of the dust box 11 and an inclined portion 132 which is inclined with respect to the flat portion 131 to form a bowl-like space. The inclined portion 132 acts so as not to reduce the efficiency of the suction air flow from the dust box inlet 1a.

  The rotary brush 5 surrounded by the brush cover 5a is provided between the dust box inlet 1a and the cleaner inlet 4a, and the brush drive motor 6 of the rotary brush 5 is provided in the vicinity of the rotary brush 5 . Moreover, the headlight part 7 for illuminating the cleaning surface S is provided in the front-end | tip part of the surface panel 2a.

  On the other hand, a fan drive motor 9 of the blower fan 8 is provided in the vicinity of the blower fan 8 and the blower fan 8 between the dust box exhaust port 1b and the cleaner exhaust port 4b. Further, at the rear end of the back panel 2b, a power cord connector 10a and a power switch 10b of a power cord (not shown) connected to the cigarette light are provided.

  FIG. 3 is a perspective view for explaining the attachment and detachment of the dust box unit 1 of FIGS. 1 and 2.

  As shown in FIG. 3, pressing the knob 3 separates the dust box unit 1 from the housings (2a, 2b). Conversely, when the dust box unit 1 is fitted into the housing (2a, 2b), the knob 3 fixes the dust box unit 1. That is, the dust box unit 1 is detachable from the vacuum cleaner.

  FIG. 4 is an exploded perspective view of the dust box unit 1 of FIGS. 1 and 2.

  As shown in FIG. 4, the check valve packing 12 is previously fixed to the dust box 11 by a screw 12a. The dust box intake port 1a is formed in a horizontally long rectangular shape, and the check valve packing 12 is fixed to be attached to the dust box in a horizontally elongated rectangular portion that completely closes the dust box intake port 1a slightly larger than the dust box intake port 1a. It is formed in the shape provided with the part. Further, as shown in detail in FIG. 5, the check valve packing 12 is made of an elastic member such as silicone rubber and fixed to the dust box 11 by a screw 12a at one side fulcrum. In this case, the check valve packing 12 does not close the dust storage chamber 13, but preferably closes a part of the upper portion of the dust storage chamber 13. Thus, when there is no suction air flow F, the check valve packing 12 completely closes the dust box inlet 1a. However, the check valve packing 12 which is an elastic member does not completely adhere to the dust box intake port 1a.

  Next, the operation of the vacuum cleaner of FIG. 1 and FIG. 2 will be described using FIG. 6 and FIG.

  First, when the suction operation is started, the power cord is connected between the power cord connector 10a and the cigarette light of the car, and the brush cover 5 of the vacuum cleaner is cleaned as shown in FIG. Set it on the cleaning surface S. Next, when the power switch 10 b is turned on, the brush drive motor 6 and the fan drive motor 9 are driven to rotate the rotating brush 5 and the blower fan 8. Therefore, as shown in FIG. 6A, the suction air flow F flows in the vacuum cleaner. As a result, as shown in (B) of FIG. 6, the check valve packing 12 fixed at the one-side fulcrum is turned off, and the suction air flow F efficiently flows while turning around the dust collection filter 14 . Thus, the dust captured by each mesh of the dust collection filter 14 falls by gravity and is collected in the dust collecting place P.

  The check valve packing 12 is fixed at one of the left and right one fulcrums, and the upper end and the lower end are not fixed. Therefore, during suction operation, the fixed part is flipped to the dust box exhaust port 1b side and pivots along the sidewall of the dust box 11 An air flow can be generated. Therefore, the dust collection efficiency can be made higher than that fixed by either the upper or the lower.

  Next, to complete the suction operation, the power switch 10b is turned off to stop the rotation of the rotating brush 6 and the blower fan 8. At this time, as shown in FIG. 7A, the vacuum cleaner is usually inclined with respect to the cleaning surface S. As a result, as shown in (A) and (B) of FIG. 7, the backflow dust R accumulated in the dust storage location P and flowing back completely enters the dust storage chamber 13. Even if there is a gap between the check valve packing 12 and the dust storage chamber 13 without completely returning, dust will not be discharged from the dust box intake port 1a, and accordingly, dust will be discharged from the vacuum cleaner intake port 4a. There is nothing to do.

  Finally, the dust box unit 1 is removed by depressing the knob 3 and the dust accumulated in the dust storage location P is discarded. At that time, the dust in the dust storage chamber 13 is also discarded.

  FIG. 8 is a cross-sectional view showing a modification of the dust chamber of FIG.

  In FIG. 8, a trapezoid-shaped dust storage chamber 13 'is provided instead of the wedge-shaped dust storage chamber 13 of FIG. The dust storage chamber 13 'is a flat portion 131' which is an extension of the bottom surface of the dust box 11, a flat portion 132 'at the top of the flat portion 131', and a slope provided at the tip of the flat portions 131 'and 132'. It has a portion 133 'and forms a trapezoidal space. However, the resistance to the suction air flow F increases from the bowl-shaped dust storage chamber 13. Also in this case, the check valve packing 12 blocks a part of the upper portion of the dust storage chamber 13 '.

  The present invention can be applied to any modification of the obvious scope of the above-described embodiment.

  The present invention can be used as a small vacuum cleaner for handy cleaners and car cleaners. In particular, the car cleaner can be miniaturized by using a car battery, for example, via a cigarette lighter, without incorporating a battery.

1: Dust Box Unit 1a: Dust Box Intake Port 1b: Dust Box Exhaust Port 11: Dust Box 12: Check Valve Packing 12a: Screw 13, 13 ': Dust Storage Chamber 14: Dust Collection Filter 15: Filter Gasket 2a: Front Panel 2b: Back Side Panel 3: Knob 4a: Vacuum cleaner inlet 4b: Vacuum cleaner outlet 5: Rotating brush 5a: Brush cover 6: Brush drive motor 7: Headlight 8: Blow fan 9: Fan drive motor 10a: Power switch 10b: Power supply Cord connector F: Suction air flow P: Dust storage location

On the other hand, a fan drive motor 9 of the blower fan 8 is provided in the vicinity of the blower fan 8 and the blower fan 8 between the dust box exhaust port 1b and the cleaner exhaust port 4b. Further, the rear end of the back panel 2b, power cord connector 10a and a power switch 10b of the power cord connected to the cigarette Rett writer (not shown) is provided.

First, when starting the suction operation, the power cord is connected between the power cord connector 10a and car cigarette Rett writer, as shown in FIG. 6 (A), to clean the brush cover 5 of the electric vacuum cleaner Set it on the cleaning surface S. Next, when the power switch 10 b is turned on, the brush drive motor 6 and the fan drive motor 9 are driven to rotate the rotating brush 5 and the blower fan 8. Therefore, as shown in FIG. 6A, the suction air flow F flows in the vacuum cleaner. As a result, as shown in (B) of FIG. 6, the check valve packing 12 fixed at the one-side fulcrum is turned off, and the suction air flow F efficiently flows while turning around the dust collection filter 14 . Thus, the dust captured by each mesh of the dust collection filter 14 falls by gravity and is collected in the dust collecting place P.

Claims (4)

With vacuum cleaner intake,
With a vacuum cleaner exhaust,
An electric blower fan provided between the vacuum cleaner inlet and the vacuum cleaner outlet;
A dust box unit provided between the vacuum cleaner inlet and the electric blower fan;
The dust box unit is
A dust box having a dust box inlet near the bottom and a dust box having a dust box outlet on the opposite side of the dust box inlet;
A check valve packing provided to close the dust box intake port;
A dust storage chamber provided between the lower portion of the check valve packing and the bottom portion of the dust box and protruding to the upstream side of the dust box air inlet;
And a dust collection filter provided at the dust box exhaust port.   The vacuum cleaner according to claim 1, wherein the check valve packing also covers a part of an upper portion of the dust chamber. The vacuum cleaner according to claim 1 or 2, wherein the check valve packing is fixed to one of the left and right sides of the dust box inlet. The dust chamber is
A flat portion which is an extension of the bottom portion of the dust box;
The vacuum cleaner according to any one of claims 1 to 3, further comprising: an inclined portion provided to be inclined with respect to the flat portion, and forming a bowl-like space.

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