JP2010155173A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner which can prevent the decrease in dust-collecting power. <P>SOLUTION: This vacuum cleaner (1), which separates dusts in sucked air by gyrating sucked air in a cylindrical dust collecting container, includes the dust collecting container (17) whose one end is open, a holder (11) which covers the opening of the dust collecting container and holds the dust collecting container detachably, an inner cylinder (30) which is placed in the dust collecting container and has an effluent hole (30b) for emitting air from the dust collecting container, and a filter (12) which is placed in the holder and collects dusts in the air lead from the inner cylinder. The inner cylinder, on one end, forms a slanted surface (30a) which faces the filter and whose diameter is extended and, on the other end, is opened (30d) and is extended to the bottom of the dust collecting container. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner provided with a cyclone dust collecting device that separates dust by swirling intake air in a cylindrical dust collecting container.

  A conventional vacuum cleaner provided with a cyclone dust collector is disclosed in Patent Document 1. In this vacuum cleaner, intake air generated by driving the electric blower of the main body passes through the cyclone dust collector and is guided to the main body. The cyclone dust collecting apparatus includes a detachable dust collecting container, and the intake air rotates inside the dust collecting container to separate the dust by centrifugal force. An inner cylinder is coaxially arranged in the dust collection container, and air from which dust has been removed flows out of the dust collection container through an outlet provided in the inner cylinder.

  An inner cylinder filter that collects dust that could not be separated by centrifugal force is provided at the outlet of the inner cylinder. On the inner surface side of the inner cylinder filter, a turbine that is rotated by an air flow is provided integrally with the inner cylinder filter. Further, a dust hitting member that contacts the outer surface of the inner cylinder filter is fixed to the inner cylinder. The turbine and the inner cylinder filter are rotated by the airflow flowing through the outlet, and the dust hitting member slides with the inner cylinder filter. Thereby, the dust collected by the inner cylinder filter is removed, and clogging of the inner cylinder filter can be prevented.

JP-A-2004-249068 (pages 4 to 6, FIG. 2)

  However, according to the above conventional vacuum cleaner, if thread-like dust such as lint and hair adheres to the inner cylinder filter and gets entangled with the dust hitting member, the rotation of the inner cylinder filter is hindered and dust cannot be removed. For this reason, there is a problem that the inner cylinder filter is clogged, the air volume is reduced, and the dust collecting power is reduced.

  An object of this invention is to provide the vacuum cleaner which can prevent the fall of dust collection power.

In order to achieve the above object, the present invention provides a vacuum cleaner that separates dust in the intake air by swirling the intake air in a cylindrical dust collecting container.
The dust collection container having one end opened, a holding unit that covers the opening of the dust collection container and detachably holds the dust collection container, and is disposed in the dust collection container and from within the dust collection container An inner cylinder having an outlet through which air flows out, and a filter that is arranged in the holding portion and that collects dust in the air guided from the inner cylinder,
The vacuum cleaner according to claim 1, wherein one end side of the inner cylinder is opposed to the filter and receives a dust dropped from the filter, and the other end side is opened to extend to a bottom surface of the dust collecting container.

  Further, in the vacuum cleaner having the above-described configuration according to the present invention, one end side of the inner cylinder has a diameter larger than the lower surface of the filter so that the surface that receives the dust that has fallen from the filter is guided to the lower part. It is characterized by having an inclined surface.

  Moreover, the vacuum cleaner having the above-described configuration according to the present invention is characterized in that a filter dust removing unit that contacts the filter and removes dust collected by the filter is provided.

  According to the above configuration, dust collection is started by driving the electric vacuum cleaner, and the air flowing into the cyclone dust collecting portion arranged in the intake path swirls in the dust collecting container and is separated by the centrifugal force. . The air from which the dust has been separated flows out of the dust collecting container through the outlet of the inner cylinder. Dust that could not be removed by swirling of the air flowing through the inner cylinder is collected by a filter. The air that has passed through the filter is exhausted from the holding member. Moreover, the dust collected by the filter is removed by the filter dust removing unit.

  Moreover, the vacuum cleaner of the said structure of this invention WHEREIN: The said inner cylinder has the inclined surface which expanded the diameter largely at the one end side facing the said filter, It is characterized by the above-mentioned. According to this configuration, the dust removed by the filter dust removing unit coming into contact with the filter slides down the inclined surface.

  The vacuum cleaner having the above-described configuration according to the present invention is characterized in that an inner cylinder filter that is disposed at the outlet and collects dust is provided. According to this configuration, the air flowing out from the dust collecting container through the outlet is collected by the inner cylinder filter.

  Furthermore, the present invention is characterized in that, in the vacuum cleaner having the above-described configuration, the lower end on the other end side of the inner cylinder is formed extending to the bottom surface of the dust collecting container, and the lower end of the inner cylinder is opened. According to this configuration, the dust that has fallen from the filter by the filter dust removing unit falls in the inner cylinder and accumulates on the bottom surface of the dust collecting container. Further, when the inner cylinder filter is provided on the peripheral surface of the inner cylinder, the dust that has fallen from the inner cylinder filter by the inner cylinder filter dust removing unit falls in the inner cylinder and accumulates on the bottom surface of the dust collecting container.

  In the vacuum cleaner having the above-described configuration according to the present invention, the dust collecting container is detachable in a state where the inner cylinder and the holding unit are integrated. According to this configuration, the dust collecting container is detached from the holding unit integral with the inner cylinder, and the dust separated by the swirling airflow and the dust dropped from the filter are discarded.

  Further, in the vacuum cleaner having the above-described configuration according to the present invention, the inner cylinder may have an inclined surface that decreases in diameter as it goes downward, and dust that has fallen from the inner cylinder filter slides down the inclined surface. Accumulate in a dust container.

  In the electric vacuum cleaner having the above-described configuration according to the present invention, a seal member is provided for sealing between the lower end of the inner cylinder and the bottom surface of the dust collecting container. According to this configuration, the seal member prevents the air in the dust collecting container from flowing out from the lower end of the inner cylinder.

  According to the present invention, since the filter is provided in the holding portion, it is possible to easily collect dust that could not be separated by turning.

  Further, according to the present invention, since the lower end of the inner cylinder is opened, the dust dropped from the filter can be accumulated in the dust collecting container and easily discarded by detaching the dust collecting container. Further, since the inner cylinder extends to the bottom surface, it is possible to prevent the air in the dust collecting container from flowing out from the lower end of the inner cylinder, and to prevent the dust that has fallen off from the filter from reattaching.

  Accordingly, it is possible to prevent a decrease in the air volume due to the dust that has fallen off the filter being reattached to the filter.

  Further, in the present invention, if the one end side of the inner cylinder is an inclined surface with a large diameter, dust that has fallen from the filter can be easily dropped to the lower part of the inner cylinder.

  Further, according to the present invention, if an inner cylinder filter is provided at the outlet, dust of air flowing out from the dust collecting container can be collected more reliably.

  Further, according to the present invention, since the dust collecting container is made detachable in a state where the inner cylinder and the holding part are integrated, the dust dropped from the filter can be easily discarded.

  Further, according to the present invention, by providing a sealing member that seals between the lower end of the inner cylinder and the bottom surface of the dust collecting container, it is possible to more reliably prevent the air in the dust collecting container from flowing out from the lower end of the inner cylinder. can do.

Schematic which shows the vacuum cleaner of 1st Embodiment of this invention. Side surface sectional drawing which shows the cyclone dust collection part of the vacuum cleaner of 1st Embodiment of this invention. Side surface sectional drawing which shows the drive mechanism of the filter of the cyclone dust collection part of the vacuum cleaner of 1st Embodiment of this invention. Side surface sectional drawing which shows the cyclone dust collection part of the vacuum cleaner of 2nd Embodiment of this invention. Side surface sectional drawing which shows the cyclone dust collection part of the vacuum cleaner of 3rd Embodiment of this invention. AA sectional drawing of FIG. Side surface sectional drawing which shows the principal part of the cyclone dust collection part of the vacuum cleaner of 4th Embodiment of this invention. Side surface sectional drawing which shows the cyclone dust collection part of the vacuum cleaner of 5th Embodiment of this invention. Front sectional drawing which shows the cyclone dust collection part of the vacuum cleaner of 5th Embodiment of this invention. The upper surface sectional view showing the cyclone dust collection part of the vacuum cleaner of a 5th embodiment of the present invention.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic view showing the vacuum cleaner of the first embodiment. A connection pipe 3 is connected to a suction port body 4 having a suction port (not shown) facing the floor surface F. A cyclone dust collecting portion 5 is connected to the connection pipe 3. The cyclone dust collecting unit 5 communicates with the electric vacuum cleaner main body 1 having the electric blower 1 a through the connecting member 10 and the suction hose 2. Further, a handle 10a is formed by bending a part of the connecting member 10 and gripped by the user.

  FIG. 2 is a side sectional view showing details of the cyclone dust collecting unit 5. The cyclone dust collecting unit 5 is provided with a holding unit 11 connected to the connection pipe 3 (see FIG. 1) via an intake port (not shown). An exhaust port 11 b connected to the connecting member 10 (see FIG. 1) is provided on the upper portion of the holding portion 11. A dust collecting container 17 is detachably attached to the holding unit 11. The air guided from the intake port to the cyclone dust collecting unit 5 turns in the dust collecting container 17 to separate the dust, and is exhausted from the exhaust port 11b.

  The holding part 11 is divided into an upper member 15 having an exhaust port 11b and a lower member 16 to which a dust collecting container 17 is attached. A seal member 14 seals between the upper member 15 and the lower member 16. The dust collecting container 17 has an upper surface opened and is covered with the holding unit 11. An inner cylinder 30 is attached to the lower surface of the lower member 16 coaxially with the dust collecting container 17. The dust collection container 17 collects dust separated by the swirling airflow, and can be removed from the holding unit 11 and discarded.

  The lower member 16 holds a filter 12 that collects dust. The upper and lower ends of the shaft portion 12 a are rotatably supported by the upper member 15 and the lower member 16 of the filter 12. A gear portion 12 b is formed on the peripheral surface of the filter 12. The gear portion 12 b is connected to the speed reducer 20 through an opening 11 c provided in the lower member 16. The speed reducer 20 is connected to a drive motor 27 (drive unit).

  FIG. 3 is a side sectional view showing details of the drive mechanism of the filter 12. The speed reducer 20 has spur gears 21 and 22. The spur gear 21 is attached to the shaft portion 27 a of the drive motor 27. The spur gear 22 is supported at the top and bottom of the shaft portion 22 a by bearings 25 and 26, and meshes with the spur gear 21 and the gear portion 12 b of the filter 12. Thereby, the filter 12 is decelerated and rotated by the drive of the drive motor 27. The filter 12 holds packings 13 a and 13 b above and below the gear portion 12 b, and seals between the filter 12 and the inner surface of the lower member 16. Thereby, the air volume fall by the air leak from the opening part 11c is prevented.

  In FIG. 2, the holding unit 11 is provided with a filter dust removing unit 18 that contacts the lower surface of the filter 12. The filter dust removing unit 18 is made of a leaf spring-like elastic body, and slides on the filter 12 by the rotation of the filter 12. Thereby, the dust collected by the filter 12 is removed. The filter dust removing unit 18 may be formed in a brush shape.

  The inner cylinder 30 is configured by assembling cylindrical first to fourth cylindrical bodies 31 to 34 arranged in order from above. The upper part of the first cylindrical body 31 is fitted to the lower member 16, and has an inclined surface 30 a that expands the upper end of the inner cylinder 30 larger than the lower surface of the filter 12. The dust D dropped from the filter 12 by the filter dust removing unit 18 slides down the inclined surface 30 a and is guided to the lower part of the inner cylinder 30. Further, a seal member 19 is provided between the first cylindrical body 31 and the dust collecting container 17. The seal member 19 prevents air leakage from the upper end of the dust collecting container 17.

  The second cylindrical body 32 is fitted and attached to the lower portion of the first cylindrical body 31 and is formed to have substantially the same diameter as the inner diameter of the dust collecting container 17. The upper end of the dust collecting container 17 is fitted to the lower member 16 and is fitted to the second cylindrical body 32 below the lower member 16 when mounted. Thereby, the dust container 17 is stably held.

  The 3rd cylindrical body 33 is fitted and attached to the lower part of the 2nd cylindrical body 32, and the outflow port 30b which consists of a some hole is provided in a surrounding surface. The air from which dust has been separated by turning in the dust collecting container 17 flows out of the dust collecting container 17 through the outlet 30b. The air rises in the inner cylinder 30 and is guided to the filter 12 in the holding unit 11.

  Further, the plurality of holes forming the outlet 30b are partitioned by the lattice-like ribs 30c. Thereby, thread-like dust such as lint and hair is entangled with the rib 30c and removed. Therefore, the rib 30c constitutes an outflow preventing member that prevents the thread-like dust from flowing out from the outflow port 30b. The outflow port 30b may be formed by a plurality of small holes provided on the peripheral surface of the third cylindrical body 33, and the outflow prevention member may be formed by the wall surface of the third cylindrical body 33 partitioning each small hole. Moreover, the outflow prevention member may be formed by forming the outflow port 30b in a mesh shape and using a wire rod that partitions the small holes of the mesh.

  The fourth cylindrical body 34 is fitted and attached to the lower portion of the third cylindrical body 33, and is formed to extend to the bottom surface of the dust collecting container 17 by opening the lower end surface 30 d. Thereby, the dust D dropped from the filter 12 by the filter dust removing unit 18 is guided to the bottom surface of the dust collecting container 17. In addition, an inclined surface 30e that is reduced in diameter as it goes downward is provided on the upper portion of the fourth cylindrical body 34. Dust D is easily guided to the bottom surface of the dust collecting container 17 by the inclined surface 30e.

  In the vacuum cleaner 1 having the above configuration, when the electric blower 1a is driven and dust collection is started, intake air is taken in from the suction port of the suction port body 4. The intake air taken in from the suction port body 4 flows into the cyclone dust collecting portion 5 through the connection pipe 3. The intake air swirls within the dust collection container 17 of the cyclone dust collection unit 5, and large dust and dust are separated and removed by centrifugal force. The separated large dust and dust accumulate in the dust collecting container 17 outside the inner cylinder 30.

The air from which the dust has been removed flows out of the dust collecting container 17 through the outlet 30b. At this time, thread-like debris such as lint and hair that could not be removed by swirling is caught by the rib 30c. The air that has flowed out of the dust collecting container 17 contains fine dust that could not be removed by swirling, and is lifted through the inner cylinder 3 and guided to the filter 12. The filter 12 collects fine dust, and clean air is exhausted from the exhaust port 11b. And the clean air guide | induced to the vacuum cleaner main body 1 via the connection member 10 and the suction hose 2 is discharge | released from the vacuum cleaner main body 1 outside.

  When the dust collection ends, the drive motor 27 is driven and the filter 12 rotates. Thereby, the filter dust removal part 18 slides with the lower surface of the filter 12, and the filter 12 is dust-removed. The dust D that has fallen off the filter 12 by dust removal slides down on the inclined surface 30 a and falls in the inner cylinder 30, and accumulates on the bottom surface of the dust collecting container 17 inside the inner cylinder 30.

  When the dust collection container 17 is detached from the holding unit 11, dust accumulated on the outside and inside of the inner cylinder 30 is taken out together with the dust collection container 17 and discarded. At this time, since the inner cylinder 30 is integrated with the holding portion 11, only the dust collecting container 17 can be attached and detached, and the dust D can be easily discarded.

  According to this embodiment, since the filter 12 is provided in the holding part 11, dust that could not be separated by swiveling can be easily collected, and the surface area of the filter 12 can be increased, so that the collecting power can be improved. Moreover, since the drive motor 27 for rotating the filter 12 and the filter dust removing unit 18 are provided, it is possible to remove the dust collected by the filter 12 and prevent clogging.

  In addition, the outflow prevention part formed by the rib 30c prevents the outflow of the thread-like dust from the outflow port 30b. For this reason, thread-like dust does not get entangled with the filter dust removing unit 18 and hinder the rotation of the filter 12, and it is possible to prevent a decrease in the dust collecting force due to clogging. Furthermore, since the filter 12 is rotated by driving the drive motor 27, even if thread-like dust gets entangled with the filter dust removing unit 18, the filter 12 can be rotated by dividing it. When the filter 12 is erected, the filter dust removing unit 18 may be provided on the side surface of the filter 12.

   Further, since the lower end surface 30d of the inner cylinder 30 is opened, the dust D dropped from the filter 12 can be accumulated in the dust collecting container 17 and easily discarded by attaching and detaching the dust collecting container 17. Further, since the inner cylinder 30 extends to the bottom surface of the dust collecting container 17, the air in the dust collecting container 17 is prevented from flowing out from the lower end surface 30 d of the inner cylinder 30, and the dust that has fallen off from the filter 12 reattaches to the filter 12. It is possible to prevent a decrease in air volume due to the operation.

  Further, since the inner cylinder 30 has an inclined surface 30 a whose upper end is larger in diameter than the lower surface of the filter 12, dust that has dropped off from the filter 12 can be easily dropped to the lower part of the inner cylinder 30. Therefore, the reattachment of the dust D that has fallen off from the filter 12 can be further prevented.

  Next, FIG. 4 is side surface sectional drawing which shows the cyclone dust collection part 5 of the vacuum cleaner of 2nd Embodiment. For convenience of explanation, the same parts as those in the first embodiment shown in FIGS. 1 to 3 are given the same reference numerals. In the present embodiment, an inclined surface dust removing portion 28 connected to the shaft portion 12a of the filter 12 is provided. Other parts are the same as those in the first embodiment.

  The inclined surface dust removing portion 28 is formed in a brush shape that comes into contact with the inclined surface 30a, rotates integrally with the filter 12, and slides on the inclined surface 30a. Thereby, the dust deposited on the inclined surface 30a can be removed.

According to the present embodiment, the same effect as that of the first embodiment can be obtained, and the inclined surface 30a is removed by the inclined surface dust removing portion 28, so that dust accumulated on the inclined surface 30a is reattached to the filter 12. It is possible to prevent a decrease in the air volume due to.

  Next, FIG. 5 is a side sectional view showing the cyclone dust collecting part 5 of the electric vacuum cleaner according to the third embodiment. For convenience of explanation, the same parts as those in the first embodiment shown in FIGS. 1 to 3 are given the same reference numerals. In the present embodiment, an inner cylinder filter 35 is provided on the inner surface side of the outlet 30 b of the inner cylinder 30. The inner cylinder filter 35 is connected to the shaft portion 12 a of the filter 12 and rotates integrally with the filter 12. On the outside of the inner cylinder filter 35, an inner cylinder filter dust removing portion 36 that is in contact with the inner cylinder filter 35 is provided. Other parts are the same as those in the first embodiment.

  FIG. 6 is a cross-sectional view taken along the line AA in FIG. Similarly to the first embodiment, the third cylindrical body 33 of the inner cylinder 30 is provided with an outlet 30b (see FIG. 5) including a plurality of holes partitioned by ribs 30b (see FIG. 2) on the peripheral surface. The inner cylinder filter dust removing portion 36 is formed in a brush shape, and a plurality of inner cylinder filter dust removing sections 36 are arranged in the circumferential direction of the third cylindrical body 33.

  The inner cylinder filter 35 is formed in a pleated shape having a substantially star-shaped cross section, and collects air dust flowing out from the outlet 30b. Since the cross-sectional shape of the inner cylinder filter 35 is pleated, the surface area of the inner cylinder filter 35 can be increased and the collecting power can be improved.

  The inner cylinder filter dust removing part 36 abuts on the tip of the pleated inner cylinder filter 35, and the inner cylinder filter 35 intermittently collides with the inner cylinder filter dust removing part 36 by rotation. The dust collected by the inner cylinder filter 35 is removed by the impact at this time, and falls downward from the space B between the pleats of the inner cylinder filter 35. The dust D slides down the inclined surface 30 e of the fourth cylindrical body 34 and is guided to the bottom surface of the dust collecting container 17.

  According to this embodiment, the same effect as that of the first embodiment can be obtained. In addition, since the inner cylinder filter 35 is provided on the inner surface side of the outlet 30b, the dust of the air flowing out from the dust collecting container 17 can be collected more reliably. In addition, since the inner cylinder filter 35 is made rotatable and dust is removed by the inner cylinder filter dust removing unit 36, it is possible to prevent a decrease in air volume due to clogging of the inner cylinder filter 35.

  Further, since the inner cylinder 30 has an inclined surface 30e that decreases in diameter as it goes downward, the dust that has fallen off from the filter 12 and the inner cylinder filter 35 can be easily dropped to the lower part of the inner cylinder 30. Can do. Accordingly, it is possible to prevent a decrease in the air volume due to dust reattaching to the filter 12 and the inner cylinder filter 35.

  Next, FIG. 7 is side surface sectional drawing which shows the principal part of the cyclone dust collection part 5 of the vacuum cleaner of 4th Embodiment. For convenience of explanation, the same parts as those in the third embodiment shown in FIGS. 5 and 6 are given the same reference numerals. In the present embodiment, a seal member 38 that seals between the lower end of the inner cylinder 30 and the bottom surface of the dust collecting container 17 is provided. Other parts are the same as those of the third embodiment.

  According to this embodiment, since the sealing member 38 is provided, it is possible to more reliably prevent the air in the dust collecting container 17 from flowing out from the lower end surface 30d of the inner cylinder 30. In addition, you may provide the sealing member 38 similar to 1st, 2nd embodiment and 5th Embodiment mentioned later.

Next, FIGS. 8, 9, and 10 are a side sectional view, a front sectional view, and a top sectional view showing the cyclone dust collecting portion 5 of the electric vacuum cleaner according to the fifth embodiment. For convenience of explanation, the same parts as those in the third embodiment shown in FIGS. 5 and 6 are given the same reference numerals. In the present embodiment, an inner cylinder filter dust removing portion 39 made of an elastic body is provided instead of the brush-like inner cylinder filter dust removing portion 36 (see FIG. 6). Further, a bypass passage 40 that branches from the air inflow side of the dust collecting container 17 is provided. Other parts are the same as those of the third embodiment.

  The outlet 30 b is composed of a large number of small holes provided in the peripheral wall of the third cylindrical body 33. Thereby, the outflow prevention part which prevents the outflow of a thread-like waste is comprised by the wall surface of the 3rd cylindrical body 33 distribute | arranged between each small hole.

  The inner cylinder filter dust removing portion 39 is made of an elastic body, and a plurality of inner cylinder filter dust removing sections 39 are arranged in the circumferential direction of the third cylindrical body 33. The inner cylinder filter dust remover 39 abuts on the tip of the pleated inner cylinder filter 35, and the inner cylinder filter 35 intermittently collides with the inner cylinder filter dust remover 39 by rotation. The dust collected by the inner cylinder filter 35 by the impact at this time is removed.

  The holding portion 11 is provided with an intake passage 11 a through which intake air flows from the connection pipe 3, and the bypass passage 40 branches from the intake passage 11 a and communicates with the intake side of the filter 12. The air flowing in the tangential direction of the dust collecting container 17 from the connection pipe 3 as shown by the arrow C1 swirls in the dust collecting container 17 as shown by the arrow C2. The air swirling in the dust collecting container 17 and separating the dust flows through the inner cylinder 30 through the outlet 30b as shown by an arrow C3 and is guided to the filter 12.

  The air branched from the intake passage 11a through the opening 40a as shown by the arrow C4 flows through the bypass passage 40 and is guided to the filter 12 as shown by the arrow C5. And it joins with the air which distribute | circulated the inside of the inner cylinder 30, passes the filter 12 as shown by arrow C6, and is exhausted from the exhaust port 11b (refer FIG. 8).

  According to this embodiment, the same effect as that of the third embodiment can be obtained. In addition, since the bypass passage 40 is provided, an air flow without pressure loss due to turning can flow through the bypass passage 40 to prevent a reduction in the air volume. Also, dust in the air flowing through the bypass passage 40 can be collected by the filter 12 to prevent the dust from flowing out. A similar bypass passage 40 may be provided in the first, second, and fourth embodiments. Moreover, you may provide a filter in the opening part 40a.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 2 Suction hose 3 Connection pipe 4 Suction port body 5 Cyclone dust collection part 10 Connection part 11 Holding part 11a Intake passage 11b Exhaust port 12 Filter 17 Dust collection container 18 Filter dust removal part 30 Inner cylinder 30a Inclined surface 30b Outlet 30d Lower end surface 31-34 1st-4th cylindrical body 35 Inner cylinder filter 38 Seal member

Claims (5)

In a vacuum cleaner that separates the dust in the intake air by swirling the intake air in a cylindrical dust collection container,
The dust collecting container having one end opened;
A holding portion that covers the opening of the dust collecting container and detachably holds the dust collecting container;
An inner cylinder that is arranged in the dust collecting container and has an outlet for allowing air to flow out of the dust collecting container;
A filter that is arranged in the holding portion and collects dust in the air guided from the inner cylinder,
The vacuum cleaner according to claim 1, wherein one end side of the inner cylinder is opposed to the filter and receives a dust dropped from the filter, and the other end side is opened to extend to a bottom surface of the dust collecting container.   The one end side of the inner cylinder is characterized in that a surface that receives dust dropped from the filter is an inclined surface that is larger in diameter than the lower surface of the filter so as to guide the dropped dust to the lower part. The electric vacuum cleaner according to 1.   The vacuum cleaner according to claim 1, wherein the inner cylinder is integrated with the holding portion.   The electric vacuum cleaner according to any one of claims 1 to 3, further comprising a filter dust removing unit that contacts the filter and removes dust collected by the filter.   The vacuum cleaner according to any one of claims 1 to 4, further comprising a sealing member that seals between a lower end on the other end side of the inner cylinder and a bottom surface of the dust collecting container.

Images