JP2018033689A - Vacuum cleaner dust collector - Google Patents

Abstract

Disclosed is a dust collecting device for a vacuum cleaner that suppresses the rising of dust and facilitates maintenance. A dust collection container having an upper opening and a bottom, a cup cover unit covering the upper opening of the dust collection container, and an inner cylinder unit provided on the lower surface of the cup cover unit, The cylinder unit includes an inner cylinder part that is detachably attached to the lower surface of the cup cover unit, and a compression mechanism part that is detachably attached to a lower end part of the inner cylinder part, and the compression mechanism part includes: It has a compression part which can move to the up-and-down direction, and projects from the lower end part of the inner cylinder part below, and an elastic member which can urge the compression part toward the bottom part of the dust collection container, Vacuum cleaner dust collector. [Selection] Figure 4

Description

  The present invention relates to a dust collector of a vacuum cleaner, and more particularly to a dust collector of a cyclone type vacuum cleaner.

  In Patent Document 1, a dust collecting container, an inner cylinder and a partition member arranged inside the dust collecting container, a filter holding part that is detachably fitted into an upper opening of the dust collecting container, and a filter holding part are attached and detached. There has been proposed an electric vacuum cleaner including a cyclone type dust collecting device having a cover portion that can be covered.

The dust collecting device will be described in detail. The dust collecting container is formed in a bottomed cylindrical shape having a circular cross section with an opening surface on the upper surface, and an airflow inlet is provided on the peripheral surface.
The filter holding part seals the upper opening of the dust collecting container and holds the filter therein.

  The inner cylinder is formed in a cylindrical frame shape, is arranged coaxially with the dust collecting container, opens an airflow inlet to the outer peripheral surface, and is provided with a mesh member at the inlet. Further, a locking groove that is recessed toward the inside in the radial direction is formed in the lower portion of the outer peripheral surface of the inner cylinder. The inner cylinder is fixed to the lower surface of the filter holding portion by welding, bonding, or the like so as to protrude from the lower surface of the filter holding portion toward the lower dust collecting container.

  The partition member has a disk part having a center hole, a cylindrical part extending vertically from the periphery of the disk part, and a protruding part extending downward from the periphery of the center hole on the lower surface of the disk part. An air flow path is formed between the inner surface of the dust collecting container and the upper part in the dust collecting container is a swirl air passage and the lower part is a dust collecting space. Further, the partition member includes a cleaning part that slides along the outer peripheral surface of the inner cylinder in proximity to the outer peripheral surface of the inner cylinder and slides on the outer peripheral surface of the inner cylinder when removing the partition member from the inner cylinder. It has a plurality of support columns extending upward from the upper surface, and a plurality of upwardly projecting claw portions provided on the inner side of the support columns on the upper surface of the disk portion.

  In this state of use, the dust collector is configured such that the inner cylinder is inserted into the space surrounded by the cleaning portion of the partition member and each support column, and each claw portion of the partition member is locked in the locking groove of the inner cylinder. Thus, the partition member is attached to the inner cylinder. Moreover, when the filter holding part is fitted into the upper opening of the dust collecting container, the lower end of the protruding part of the partition member is supported on the bottom surface of the dust collecting container.

In the dust collector of Patent Document 1, disposal and maintenance of dust such as hair and yarn waste collected inside and dust such as dust can be performed as follows.
First, the filter holding part together with the cover part is removed from the dust collecting container. Then, since the partition member is taken out from the inside of the dust collecting container together with the inner cylinder fixed to the filter holding portion, if the dust collecting container is turned upside down, the dust accumulated inside can be dropped into the trash can and discarded. .
Next, at the time of maintenance, since the claw part is detached from the locking groove by pulling the partition member with respect to the inner cylinder, the partition member can be pulled out from the inner cylinder and separated. Can be washed separately.

Japanese Patent No. 5095852

In the case of the dust collector of Patent Document 1, since fine dust in the dust falling from the dust collecting container to the trash box and in the dust after the falling easily scatters out of the trash box, the user can prevent the fine dust from flying up as much as possible. It was necessary to drop the dust from a low position.
Furthermore, during maintenance, the inner cylinder is fixed to the filter holding member and cannot be separated. Therefore, the user must clean the inner cylinder cleanly in every corner while holding the large filter holding member. There was a problem that it was difficult.

  This invention is made | formed in view of such a subject, and it aims at providing the dust collector of the vacuum cleaner which suppresses the rise of dust and is easy to maintain.

Thus, according to the present invention, a dust collecting container having an upper opening and a bottom, a cup cover unit covering the upper opening of the dust collecting container, and an inner cylinder unit provided on the lower surface of the cup cover unit are provided. Prepared,
The inner cylinder unit has an inner cylinder part detachably attached to the lower surface of the cup cover unit, and a compression mechanism part detachably attached to a lower end part of the inner cylinder part,
The compression mechanism portion is movable in the vertical direction and protrudes downward from the lower end portion of the inner cylinder portion; and an elastic member capable of urging the compression portion toward the bottom portion of the dust collecting container. A dust collector for a vacuum cleaner is provided.

ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to compress the dust collected in the dust collecting container by the compression part, and to discharge the compressed dust from the dust collecting container. Thereby, the rising of the fine dust in the dust falling to the trash box and after falling can be suppressed.
Furthermore, since the inner cylinder unit can be detached from the cup cover unit and the inner cylinder unit can be separated into the inner cylinder part and the compression mechanism part, the inner cylinder and the compression mechanism part can be cleaned individually and cleanly.
That is, according to the present invention, it is possible to provide a dust collector for a vacuum cleaner that facilitates disposal and maintenance of dust.

It is a perspective view which shows the cleaner body in the vacuum cleaner which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the internal structure of the cleaner main body shown by FIG. It is a perspective view which shows the drive device single-piece | unit of the cleaner body shown by FIG. It is sectional drawing which shows the internal structure of the dust collector which concerns on Embodiment 1. FIG. It is a perspective view which shows the state which open | released the bottom cover of the dust collector which concerns on Embodiment 1. FIG. It is sectional drawing which shows the internal structure of the dust collector shown by FIG. It is a perspective view which shows the dust container of the dust collector which concerns on Embodiment 1. FIG. It is a perspective view which shows the assembly of the cup cover unit and inner cylinder unit of the dust collector which concerns on Embodiment 1. FIG. (A) is the top view which looked at the assembly of the 2nd centrifuge unit and the inner cylinder unit from the upper side, (B) is a CC sectional view taken on the line of (A). It is a perspective view which shows the decomposition | disassembly state of the 2nd centrifugal separation unit in the dust collector which concerns on Embodiment 1, and an inner cylinder unit. It is sectional drawing which shows the internal structure of the 2nd centrifuge unit of the decomposition | disassembly state shown by FIG. 10, and an inner cylinder unit. It is the perspective view which looked at the inner cylinder part from the downward direction. It is the perspective view which looked at the compression mechanism part from the upper part. (A) is sectional drawing which shows the connection state of an inner cylinder part and a compression mechanism part, (B) is sectional drawing which shows the separable state of an inner cylinder part and a compression mechanism part. It is sectional drawing which shows the internal structure of the dust collector which concerns on Embodiment 2. FIG. It is a fragmentary sectional view which shows the internal structure of the dust collector which concerns on Embodiment 3.

(Embodiment 1)
1 is a perspective view showing a vacuum cleaner main body in a vacuum cleaner according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view showing an internal structure of the vacuum cleaner main body shown in FIG. 1, and FIG. It is a perspective view which shows the drive device single-piece | unit of the cleaner body shown by FIG. 4 is a cross-sectional view showing the internal structure of the dust collector according to the first embodiment, and FIG. 5 is a perspective view showing a state in which the bottom cover of the dust collector according to the first embodiment is opened.

  A vacuum cleaner according to Embodiment 1 of the present invention includes a vacuum cleaner main body 1 shown in FIGS. 1 and 2, a flexible hose (not shown) connected to the vacuum cleaner main body 1, an operation handle, an extension pipe, and a suction port. It has a structure with a body.

  As shown in FIGS. 1 to 5, the cleaner body 1 includes a cyclone dust collector 100 and a drive device 200 having a pair of left and right wheels 200 a, a front wheel 200 b, and a rear wheel 200 c. Here, let the dust collector 100 side in the drive device 200 be a front side, and let the opposite side to the front side be a rear side.

<About the drive unit>
The driving device 200 includes a connection part 201 and a handle 200d provided at the front part of the casing constituting the appearance, an external exhaust port 202 provided at the rear part of the casing for discharging the internal air to the outside, And an electric blower 203 provided inside the housing.
Further, the driving device 200 is provided with a mounting portion 205 that accommodates the dust collecting device 100 in the front and is detachably mounted thereon, and the connecting portion 201 that is connected to the flexible hose is provided as described above. It is provided so as to protrude forward from the portion 205.
The mounting portion 205 is formed in a bottomed cylindrical shape having a window portion on the outer peripheral surface and slightly inclined rearwardly, and a protruding portion 206 protruding obliquely upward is provided at the center portion of the bottom surface. It has been.

Further, the driving device 200 is provided with an intake port 204 on the opposite side of the mounting portion 205 to the connection portion 201, a seal member 204 a is provided around the intake port 204, and a locking recess at a position near the upper side of the intake port 204. 204b is provided.
The vacuum cleaner main body 1 is configured such that when the dust collector 100 is attached to the drive device 200, the connecting portion 201 communicates with an inlet 113 of the dust collector 100 described later, and the intake port 204 has a dust collector. It is configured to communicate with the outlet 134 of the apparatus 100.

  The electric blower 203 has a blower fan for performing intake air and a blower drive motor that rotationally drives the blower fan. The drive device 200 incorporates a control device (not shown) that controls the electric vacuum cleaner in an integrated manner. The control device includes a control unit such as a CPU, a RAM, and a ROM. Specifically, in the control device, the CPU executes various processes according to a control program stored in the ROM.

  In the electric vacuum cleaner according to the present embodiment, when the electric blower 203 built in the cleaner main body 1 is operated, intake is performed from a suction port body (not shown). And the air containing the dust attracted | sucked from the suction inlet body is introduce | transduced into the inflow port 113 of the dust collector 100 from the connection part 201, as shown in FIG. The air sucked in the dust collector 100 is sucked from the air inlet 204 of the driving device 200 in a state where the dust is centrifuged and the dust is removed. The air taken in from the intake port 204 passes through an exhaust path Y indicated by an arrow and is discharged to the outside from an external exhaust port 202 provided at the rear portion of the driving device 200. Note that the exhaust path Y passes through the electric blower 203, collects metal powder or dust generated from the electric blower 203 by the filter 208, and passes through the control device. Therefore, the control device is cooled by the air flowing through the exhaust path Y.

<About the dust collector>
6 is a cross-sectional view showing the internal structure of the dust collecting apparatus shown in FIG. 5, FIG. 7 is a perspective view showing a dust collecting container of the dust collecting apparatus according to Embodiment 1, and FIG. It is a perspective view which shows the assembly of the cup cover unit and inner cylinder unit of the dust collector which concerns.

  As shown in FIGS. 4 to 8, the dust collector 100 includes a dust collection container 110 having an upper opening 111 a and a bottom, a cup cover unit 120 that covers the upper opening of the dust collection container 110, and a cup cover unit 120. And an inner cylinder unit 130 provided on the lower surface of the. Here, the dust collecting container 110 side is the lower side, and the opposite side is the upper side.

[Dust collection container]
The dust collecting container 110 includes a cylindrical container body 111 having the upper opening 111a and the lower opening 111b, and a bottom lid 112 as a bottom portion that covers the lower opening 111b of the container body 111 so as to be openable and closable.

The container body 111 is divided into a first dust collection chamber 111A disposed on the center side and a second dust collection chamber 111B disposed around the first dust collection chamber 111A. An inner cylinder unit 130 described later is arranged in the first dust collection chamber 111A to form a first centrifugal separation unit, and a plurality of second centrifugal separation units 121 in the cup cover unit 120 described later are arranged in the second dust collection chamber 111B. A second centrifuge body 121b having a small centrifuge body 121b ₁ is arranged.

  The second dust collection chamber 111B is disposed at two opposing positions on the outer peripheral portion of the first dust collection chamber 111A, and the inner side wall of each second dust collection chamber 111B includes the outer peripheral surface of the first dust collection chamber 111A. It is configured as follows. Since the pair of second dust collection chambers 111B are provided on the outer periphery of the first dust collection chamber 111A, the container main body 111 can be easily washed with water, and maintenance is facilitated.

Further, the container body 111 is provided with the inflow port 113 on the outer peripheral wall of the first dust collection chamber 111A not surrounded by the pair of second dust collection chambers 111B, and dust sucked from a suction port body (not shown). The air containing the air flows through the inlet 113 into the first dust collecting chamber 111A.
Further, an outer seal member 114 that is in close contact with the inner surface of the outer periphery of the closed bottom lid 112 is provided on the outer periphery of the lower end of the container body 111.

The bottom cover 112 is formed in a shape corresponding to the outer periphery of the lower end of the container body 111, and the inner surface of the bottom cover 112 is a circle that can be in close contact with the lower end of the cylindrical outer peripheral wall 111Aa that constitutes the first dust collection chamber 111A. An annular inner seal member 115 is provided.
Further, the bottom lid 112 is provided with a conical cylindrical raised portion 112a at the center of the circle of the inner seal member 115, and a cylindrical link pin 116 is slidably attached to the raised portion 112a.

As shown in FIG. 4, the inside of the raised portion 112a is hollow, and the proximal end portion of the link pin 116 having the outer flange 116a is accommodated in the raised portion 112a, and the distal end portion of the link pin 116 is It is exposed to the outside of the raised portion 112a.
Since the link pin 116 has the outer flange 116a at the base end, the movable range of the distal end portion of the link pin 116 is within the range in which the outer flange 116a can move in the vertical direction with respect to the bottom lid 112 in the raised portion 112a. Is limited to.
In addition, a hole 112a ₁ having an inner diameter smaller than the outer diameter of the outer flange 116a of the link pin 116 is formed at the lower end of the raised portion 112a, and the protruding portion of the driving device 200 is formed in the hole 112a _1. 206 can be inserted.

  The bottom cover 112 is attached to the outer periphery of the lower end of the container body 111 via a hinge part 110P. In addition, a lower lock portion 110R1 is provided on the opposite side of the lower end outer peripheral portion of the container body 111 from the hinge portion 110P, and a locking portion 111R is provided on the opposite side of the outer peripheral surface of the container body 111 from the hinge portion 110P. The lower lock portion 110R1 is detachably engaged with the engagement portion 111R, thereby closing the lower opening 111b of the container body 111 so that the bottom lid 112 can be opened and closed.

[Cup cover unit]
FIG. 9A is a plan view of the assembly of the second centrifuge unit and the inner cylinder unit viewed from above, and FIG. 9B is a cross-sectional view taken along the line CC of FIG. 10 is a perspective view showing a disassembled state of the second centrifuge unit and the inner cylinder unit in the dust collector according to Embodiment 1, and FIG. 11 is a disassembled second centrifuge unit shown in FIG. It is sectional drawing which shows the internal structure of an inner cylinder unit.

  As shown in FIGS. 4 to 11, the cup cover unit 120 is detachable from the second centrifuge unit 121 detachably fitted in the upper opening 111 a of the dust collecting container 110 and the upper part of the second centrifuge unit 121. And an upper cover 122 covering the surface.

  The second centrifuge unit 121 includes a lid 121a that is detachably fitted into the upper opening 111a of the dust collecting container 110, and a pair of second centrifuges 121b that are suspended from the lower surface of the lid 121a.

The lid 121a is a hollow body having a flat upper wall 121ax, a lower wall 121ay, and a peripheral wall 121az, and is formed in a shape corresponding to the upper opening 111a of the dust collecting container 110.
A lock part 121R is provided on a part of the peripheral wall 121az of the lid 121a so as to be detachably locked with a part of the outer peripheral part of the upper cover 122. Further, on the opposite side of the peripheral wall 121az of the lid 121a from the lock portion 121R, a pivoting portion 121P that connects the lid 121a and the upper cover 122 in a swingable manner is provided.

In the lid 121a, an outer seal member 123 that can be in close contact with the outer periphery of the upper end of the container main body 111 is provided on the outer periphery of the lower wall 121ay, and the upper cover 122 of the upper wall 121ax is described later. An upper seal member 125 that can be in close contact with the lower end portion of the lower wall portion 122a is provided.
In addition, a concave flow hole 121a ₁ that opens downward is formed at the center of the lower surface of the lid part 121a, and the outer peripheral wall 111Aa of the first dust collection chamber 111A of the container body 111 is formed around the flow hole 121a ₁ . An inner seal member 124 that can be in close contact with the upper end (see FIG. 4) is provided.

Also, a plurality of arc-shaped (a pair in this embodiment) upper locking grooves 121a ₁₁ are provided on the lower surface of the cup cover unit 120, specifically, on the peripheral wall forming the flow hole 121a ₁ . The plurality of upper locking grooves 121a ₁₁ are locking portions for detachably attaching an inner cylinder unit 130, which will be described later, to the lid part 121a, and stopper protrusions that prevent the inner cylinder unit 130 from rotating on one end side in the circumferential direction thereof. A portion 121a ₁₂ is provided.

Further, a plurality of (eight in this embodiment) short cylindrical outflow portions 121a ₂ communicating with the pair of second centrifugal separators 121b are connected to the lid portion 121a from the upper wall 121ax to the lower wall 121ay. It penetrates and is formed in the up-down direction.
Second centrifugal separator 121b is small centrifugal separator 121b of a plurality of long cylindrical provided vertically through the bottom wall 121ay from the lower surface of the upper wall 121ax of the lid 121a so as to surround the respective outlet portion 121a ₂ a _1, a connecting wall portion 121b ₂ for connecting a plurality of small centrifugal separator 121b ₁ together form, an inflow hole 121b ₃ provided in the vicinity of the outlet portion 121a ₂ of each small centrifuge body 121b _1.

In the case of this embodiment, each small centrifugal separator 121b ₁ is gradually reduced in diameter toward the lower side, and the lower end opening 121b ₁₁ is opened at the lower surface of the connecting wall 121b ₂ . Further, as viewed in a plan view, the connecting wall portion 121b ₂ of the second centrifugal separator 121b is formed in an arc shape and is provided in a pair on the left and right. Further, each second centrifugal separator 121b juxtaposed four small centrifugal separator 121b _1, respectively, outlet portion 121a ₂ is arranged at the position of the small centrifugal separator 121b _1. Further, the lower end opening 121b ₁₁ of each small centrifuge body 121b ₁ is eccentric forward or backward on the same circumference with respect to each outlet portion 121a _2.

According to the second centrifuge unit 121 configured as described above, air containing fine dust flowing into the flow hole 121a ₁ from the inner cylinder unit 130 described later passes through each of the small centrifuges through the plurality of inflow holes 121b _3. flows into the separator 121b _1, fine dust in the small centrifugal separator 121b within ₁ is centrifuged from the air falls into the second dust collecting chamber 111B of the dust collecting container 110, fine dust is removed The air flows out into the cup cover unit 120 through the outflow portions 121a ₂ .

As shown in FIGS. 2 to 5, the upper cover 122 includes a lower wall portion 122a that covers the second centrifuge unit 121, an intermediate wall portion 122b that covers the lower wall portion 122a, and an upper wall portion that covers the intermediate wall portion 122b. 122c, a lock release handle 122d pivotably attached to the front portion of the upper wall portion 122c, and a lock provided between the upper wall portion 122c and the intermediate wall portion 122b and interlocking with the lock release handle 122d And a mechanism portion 122e.
In the upper cover 122, an air passage is formed between the lower wall portion 122 a and the second centrifuge unit 121, and a rear portion of the lower wall portion 122 a is opened to serve as the discharge port 134.

Locking mechanism 122e includes a locking claw 122e ₁ for locking recess 204b and detachably locking the mounting portion 205 of the drive unit 200, a link section 122e ₂ in conjunction with a lock release handle 122d, the link portion 122e and a biasing member 122e ₃ for elastically biasing the locking claws 122e ₁ to the engagement recess 204b side to _two.

When the user pulls out the dust collecting device 100 from the drive device 200, the lock mechanism portion 122e pulls the lock release handle 122d so that the urging member 122e ₃ and the locking claw 122e ₁ are pulled forward together with the link portion 122e _2. The locking claw 122e ₁ is configured to be detached from the locking recess 204b.

[Inner cylinder unit]
FIG. 12 is a perspective view of the inner cylinder portion viewed from below, and FIG. 13 is a perspective view of the compression mechanism portion viewed from above. 14A is a cross-sectional view showing a connected state of the inner cylinder part and the compression mechanism part, and FIG. 14B is a cross-sectional view showing a separable state of the inner cylinder part and the compression mechanism part.

  As shown in FIGS. 8 to 14B, the inner cylinder unit 130 is detachably attached to the inner cylinder portion 131 detachably attached to the lower surface of the cup cover unit 120 and the lower end portion of the inner cylinder portion 131. And a compression mechanism portion 132.

The inner cylinder portion 131 is a cylindrical frame body having a plurality of vertical slits 131a, and the outer peripheral surface thereof is covered with a mesh member (not shown).
The inner cylinder portion 131 is provided on the outer peripheral surface of the upper end portion of the annular shape, and can be engaged with and disengaged from a plurality of (a pair in this embodiment) upper locking grooves 121a ₁₁ of the second centrifuge unit 121 of the cup cover unit 120. A plurality of upper locking pieces 131b to be locked and a plurality of lower locking grooves 132c ₃₁ to be described later (a pair in the present embodiment) provided on the lower surface of the annular lower end portion of the compression mechanism portion 132 are detachable. A plurality of lower locking pieces 131c to be locked. The upper locking pieces 131b, also in the lower locking groove 132c ₃₁ and lower locking pieces 131c, the upper locking groove 121a ₁₁ similar stopper convex portion 121a ₁₂ (see FIG. 11) is provided.

  The compression mechanism part 132 can move in the vertical direction, and can urge the compression part 132a projecting downward from the lower end part of the inner cylinder part 131, and the bottom part 112 as the bottom part of the dust collecting container 110. Elastic member 132b and a partition part 132c provided above the compression part 132a so as to be close to the outer peripheral part of the inner cylinder part 131. For example, a coil spring is used as the elastic member 132b.

The partition part 132c is provided at the lower end part of the frame part 132c ₁ so as to be inserted into the inner cylinder part 131 and the cylindrical frame part 132c ₁ arranged close to the outer peripheral part of the inner cylinder part 131. And a cylindrical first shaft portion 132c ₂ provided continuously.
In more detail, the partition portion 132c includes a coupling portion 132c ₃ from the upper outer peripheral surface of the first shaft portion 132c ₂ covers the outer circumferential surface of the frame portion 132c ₁ of the lower portion and the first shaft portion 132c ₂ by connecting, And a cylindrical portion 132c ₄ suspended from the lower end portion of the frame portion 132c ₁ . A plurality of (in this embodiment, a pair) lower locking grooves 132c ₃₁ are provided on the upper surface of the lower end of the connecting portion 132c ₃ . Incidentally, the upper end opening of the first shaft portion 132c ₂ is closed by a cap 132c ₂₁ having a hole.

Compression unit 132a includes a compressor body 132a ₁ which projects from the lower end of the inner cylindrical portion 131 downward, the compression section body 132a ₁ to be inserted slidably in the partition portion first shaft portion 132c ₂ of 132c And a second shaft portion 132a ₂ connected to the upper surface.
More specifically, the compression portion main body 132a ₁ includes a large diameter cylindrical portion 132a ₁₁ through which the cylindrical portion 132c ₄ of the partition portion 132c is slidably inserted, a lower end portion of the large diameter cylindrical portion 132a ₁₁ and a second shaft portion 132a _2. with the door and the connecting portion 132a ₁₂ for connecting the second shaft portion 132a ₂ outer shaft 132a ₁₃ provided continuously to the upper surface of the connecting portion 132a ₁₂ to surround the.

As shown in FIGS. 4, 8, and 10, the central portion of the coupling portion 132 a ₁₂ in the compression portion main body 132 a ₁ has a concave portion that opens downward, and a flat annular lower surface around the concave portion. A plurality of small protrusions 132a ₁₂₁ are formed on the surface. The compression unit main body 132a ₁ having these protrusions 132a ₁₂₁ has a function of moving downward in the dust collecting container 110 to compress the dust toward the bottom lid 112 and a function of collecting the dust. This will be described in detail later.

In the assembled state of the compressed portion 132a and the elastic member 132b and the partition portion 132c is a separate component, in the first shaft portion 132c ₂ and connecting portion 132c in the _third partition portion 132c, the second shaft portion of the compression section 132a 132a ₂ and the outer shaft portion 132a ₁₃ are inserted. Further, the first shaft portion 132c ₂ and the connecting portion 132c ₃ of the partition portion 132c, a cylindrical space surrounded by the second shaft portion 132a ₂ and the outer shaft 132a ₁₃ of the compression unit 132a, as the elastic member 132b The coil spring is housed.

In the compression mechanism portion 132 configured as described above, the elastic member 132b biases the compression portion 132a and the partition portion 132c in the direction of separating them from each other, and therefore the compression mechanism portion 132 extends in a free state. . In addition, since a pair of protrusions 132c ₂₁ and 132a ₂₁ for retaining are provided on the inner peripheral surface of the first shaft portion 132c ₂ and the upper end portion of the second shaft portion 132a ₂ , respectively, the compression portion 132a and the partition portion are provided. There is no unexpected separation from 132c.

By inserting and rotating the inner cylinder part 131 into the partition part 132c of the compression mechanism part 130, as shown in FIG. 14A, the pair of lower locking pieces 131c of the inner cylinder part 131 become the partition part 132c. The inner cylinder unit 130 is assembled by engaging with the pair of lower locking grooves 132c ₃₁ . Further, if the operation reverse to this is performed, as shown in FIG. 14B, the pair of lower locking pieces 131c of the inner cylinder part 131 is detached from the pair of lower locking grooves 132c ₃₁ of the partition part 132c. Therefore, the inner cylinder 131 can be removed from the compression mechanism portion 130.

The upper locking pieces 131b of the inner cylinder portion 131 of the inner cylinder unit 130 to engage with the upper locking groove 121a ₁₁ of the cup cover unit 120 assembled assembly A (see FIG. 8) is mounted on the dust collection container 110 Thus, the dust collector 100 is configured. Then, as shown in FIG. 2, the dust collector 100 is mounted on the mounting portion 205 of the driving device 200. Then, the protruding portion 206 of the placing portion 205 is inserted into the hole 112a ₁ (see FIG. 4) of the bottom lid 112 of the dust collecting container 110 to push up the link pin 116. And the link pin 116 pushes up the compression part 132a of the compression mechanism part 132 in the inner cylinder unit 130 against the downward biasing force of the elastic member 132b. Thereby, the dust collection space S is formed under the compression part 132a in the dust collection container 110 (refer FIG. 2).

<About the operation of the vacuum cleaner>
The operation of the vacuum cleaner according to this embodiment will be described below. As shown in FIG. 2, first, when the vacuum cleaner is operated, the control device of the driving device 200 operates the electric blower 203 and sucks air from a suction port (not shown). It flows into the cleaner main body 1 through the flexible hose through the connecting portion 201 connected to the flexible hose.

  The dust-containing air that has flowed into the cleaner body 1 flows into the dust collector 100. The dust-containing air that has flowed into the inlet 113 of the dust collector 100 passes through the cup cover unit 120 via the separation path X indicated by the arrow in FIG. Are sucked into the electric blower 203.

In the dust collector 100, the upper part acts as the first centrifugal separation part S ₁ (cyclone part) with the upper surface of the compression part 132a as a boundary. That is, in the dust collector 100, the first centrifugal separation portion S ₁ is a swirling air passage constituted by the inner side surface of the first dust collection chamber 111 </ b> A in the dust collection container 110 and the outer peripheral surface of the inner cylinder portion 131. The inlet 113 is open in the tangential direction of the swirling air duct in which the first centrifugation portion S ₁ is to configure. Therefore, the dust-containing air that has flowed in through the inflow port 113 swirls in the swirl air passage formed by the first centrifugal separator S ₁ as in the separation path X of FIG. The dust is centrifuged.

Of the dust that has been centrifuged in the first centrifugally separating part S _1, relatively large coarse dust (first dust) by the action of centrifugal force, the inner surface of the first dust collecting chamber 111A of the dust container 110 It falls along and is accumulated in the dust collection space S below the compression part 132a. At this time, dust and fibrous dust come into contact with the plurality of protrusions 132a ₁₂₁ provided on the lower surface of the compression portion 132a to be collected as a lump.

The air from which the coarse dust has been separated passes through the inner cylinder portion 131 (see the separation path X in FIG. 2). At this time, relatively small fine dust not separated by the first centrifugal separator unit S ₁ (second dust), together with the air stream rises through the slit 123b and not shown mesh member of the inner cylindrical portion 131 .

On the other hand, coarse dust is filtered by a mesh member as a filter. The air that has passed through the inner cylinder part 131 flows into the second centrifuge unit 121 of the cup cover unit 120. As shown in FIG. 11, in the second centrifugal separation unit 121, the inflow hole 121b ₃ into which the dust-containing air flows is an air swirl channel formed between the small centrifugal separator 121b ₁ and the outflow portion 121a _2. It opens in the tangential direction of (second centrifuge part S ₂ ). Therefore, the dust-containing air flowing in from the inflow hole 121b ₃ turns along the inner peripheral surface of the small centrifugal separator 121b ₁ .

Second centrifugation section S ₂ is smaller turning radius of the dust-containing air than turning radius of the first centrifugal separator unit S _1, and the turning speed is greater than the rotation speed of the first centrifugal separator unit S ₁ Designed to be Thus, the dust-containing air passing through the first centrifugal separator unit S _1, less dust than crude dust separated by the first centrifugal separator unit S _1, namely separating fine dust in the second centrifugal separator unit S ₂ can do. Therefore, by turning the air in the second centrifugal separator unit S _2, fine dust of the dust-containing air (second dust) is centrifuged, and falls along the inner circumferential surface of the small centrifugal separator 121b ₁ enters the bottom opening 121b ₁₁ to the second dust collecting chamber 111B, finally, is accumulated on the bottom cover 112 in the second dust collecting chamber 111B.

The fine dust air (second dust) is separated, a second centrifugal separation unit 121 and the upper through the tubular outlet portion 121a ₂ provided in the center portion of the second centrifugal separator unit S ₂ It is discharged into the space between the cover 122 (see the separation path X in FIG. 2) and flows into the driving device 200 from the intake port 204. Then, it is discharged to the outside through the exhaust path Y.

<Maintenance of dust collector>
When the dust in the dust collecting container 110 is discarded after the cleaning is completed, the user can remove the dust collecting device 100 from the driving device 200 by lifting the lock release handle 122d. At this time, the dust collection container 110 is lifted from the placement unit 205 of the driving device 200, so that the protrusion 206 of the placement unit 205 comes out of the raised portion 112 a of the dust collection container 110. Thereby, in the compression mechanism part 132 in the dust collecting container 110, the compression part 132a moves downward by the urging force of the elastic member 132b, and the dust accumulated as a lump under the compression part 132a is collected in the compression part 132a. Compress (see FIG. 4).

  By providing such a compression mechanism part 132, as shown in FIG. 5 and FIG. 6, when the user opens the bottom cover 112, the user can discard the massive dust in a compressed state. Therefore, the dust in the dust collecting container 1110 can be efficiently discarded, and it becomes difficult for the fine dust to rise when dropping into the trash box and after dropping.

Thereafter, the dust collector 100 can be disassembled and washed with water as follows.
First, the assembly A (see FIG. 8) of the cup cover unit 120 and the inner cylinder unit 130 is removed from the dust collecting container 110. At this time, the assembly A is separated by releasing the upper lock portion 110R2 (see FIG. 7) provided on the dust collecting container 110 side.
The cup cover unit 120 can be easily separated into the second centrifuge unit 121 and the upper cover 122.

The cup cover unit 120 and the inner cylinder unit 130 of the assembly A can be separated as follows.
By rotating integrally with the inner cylindrical portion 131 and the compression mechanism unit 132 with respect to the cup cover unit 120, leaving the upper locking pieces 131b of the inner cylinder portion 131 from the upper locking groove 121a ₁₁ of the cup cover unit 120 Thus, the entire inner cylinder unit 130 can be removed. Then, by rotating the inner cylinder part 131 and the compression mechanism part 132 relatively, the lower locking piece 131c of the inner cylinder part 131 is detached from the lower locking groove 132c ₃₁ of the compression mechanism part 132, and the inner cylinder. The part 131 and the compression mechanism part 132 can be separated.

Alternatively, by rotating only the compression mechanism unit 132 with respect to the cup cover unit 120, the lower locking groove 132c ₃₁ compression mechanism portion is detached from the lower locking piece 131c of the compression mechanism 132 of the inner cylindrical portion 131 Only 132 can be removed. And the inner cylinder part 131 can be removed by rotating the inner cylinder part 131 with respect to the cup cover unit 120.

  When separating the inner cylinder part 131 and the compression mechanism part 132, the inner cylinder part 131 is pulled out from the partition part 132c of the compression mechanism part 132, so that fibrous dust wound around the partition part 132c is removed from the periphery of the inner cylinder part 131. Is done. Further, the fibrous dust wound around the partition portion 132c can be easily removed by unraveling with a finger or cutting with scissors.

Thus, since it can isolate | separate into the dust collecting container 110, the upper cover 122, the 2nd centrifugation unit 121, the inner cylinder part 131, and the compression mechanism part 132, they can be separately washed with water cleanly. In particular, since fine dust adheres to the mesh member of the inner cylinder part 131, the inner cylinder part 131 can be easily and neatly cleaned by separating the inner cylinder part 131 into a single body. Further, since the second centrifugal separation unit 121 also inner cylindrical portion 131 is removed, to scrubbing facilitates a brush or the like every corner through channels 121a _1, etc. of the inner and middle of the pair of second centrifugal separator 121b (See FIGS. 7, 8, and 10).

(Embodiment 2)
FIG. 15 is a cross-sectional view showing the internal structure of the dust collector according to the second embodiment. In FIG. 15, the same elements as those in FIG. 4 are denoted by the same reference numerals.
Although the dust collector 100 (refer FIG. 4) provided with the dust container 110 which has the bottom cover 112 which can be opened and closed was illustrated in Embodiment 1, this invention is not limited to this.
For example, like the dust collector 1100 of Embodiment 2 shown in FIG. 15, the bottom 1120 of the dust collection container 1110 may be fixed to the container body 111 by adhesion or fusion. In the second embodiment, other configurations are substantially the same as those in the first embodiment.

The dust collector 1100 of the second embodiment also has the same effect as that of the first embodiment, that is, the effect of suppressing the rise of fine dust due to dust compression and facilitating maintenance.
In the case of the second embodiment, when discarding the dust accumulated in the dust collection container 1110, after removing the assembly A (see FIG. 8) of the cup cover unit 120 and the inner cylinder unit 130 from the dust collection container 1110, The dust collection container 1110 is turned upside down and dust is discharged to the outside from the openings of the first and second dust collection chambers 111A and 111B.

(Embodiment 3)
FIG. 16 is a partial cross-sectional view showing the internal structure of the dust collector according to the third embodiment. In FIG. 16, the same elements as those in FIG. 4 are denoted by the same reference numerals.
In the first embodiment, the multi-cyclone type dust collecting apparatus 100 (see FIG. 4) including the first centrifuge unit S ₁ and the second centrifuge unit S ₂ is illustrated, but the present invention is limited to this. is not.

  For example, a single cyclone system in which the second centrifugal separator is omitted may be used like the dust collector 2100 of the third embodiment shown in FIG. In this case, as the cup cover unit 2120 that covers the dust collection container 2110 and its upper opening so as to be openable and closable, a combination of a filter holding part having a filter described in Patent Document 1 and a cover part that covers it detachably is combined. Can be adopted. In the third embodiment, other configurations are generally the same as those in the first embodiment.

The dust collector 2100 of the third embodiment also has the same effect as that of the first embodiment, that is, the effect of suppressing the rise of fine dust due to dust compression and facilitating maintenance.
In the case of the third embodiment, as in the second embodiment, when the dust accumulated in the dust collecting container 2110 is discarded, the assembly B (see FIG. 8) of the cup cover unit 2120 and the inner cylinder unit 130 is collected. After removal from the dust container 1100, the dust collection container 2110 is turned upside down and dust is discharged outside through the opening.

(Embodiment 4)
The dust collector (not shown) of the fourth embodiment is configured such that the bottom of the dust container 2110 in the dust collector 2100 of the third embodiment shown in FIG. 16 can be opened and closed. Even if it does in this way, the effect similar to Embodiment 1 can be acquired.

(Summary)
The dust collector of the vacuum cleaner of the present invention includes a dust collection container having an upper opening and a bottom, a cup cover unit that covers the upper opening of the dust collection container, and an inner surface provided on the lower surface of the cup cover unit. A cylinder unit,
The inner cylinder unit has an inner cylinder part detachably attached to the lower surface of the cup cover unit, and a compression mechanism part detachably attached to a lower end part of the inner cylinder part,
The compression mechanism portion is movable in the vertical direction and protrudes downward from the lower end portion of the inner cylinder portion; and an elastic member capable of urging the compression portion toward the bottom portion of the dust collecting container. It is what has.

The dust collector of the vacuum cleaner of this invention may be comprised as follows, and may be combined suitably.
(1) The compression mechanism part may further include a partition part provided above the compression part so as to be close to the outer peripheral part of the inner cylinder part.
According to this configuration, since fibrous waste such as hair and lint wraps around the partition portion, it is possible to suppress winding of the fibrous waste around the inner tube portion, and the inner tube portion is easily and quickly cleaned. be able to.

(2) The partition portion includes a frame portion disposed in the vicinity of the outer peripheral portion of the inner cylinder portion, and a cylinder continuously provided at the lower end portion of the frame portion so as to be inserted into the inner cylinder portion. A first shaft portion having a shape,
The compression portion is continuously provided on the compression portion main body so as to be slidably inserted into the compression shaft main body protruding downward from the lower end portion of the inner cylinder portion and the first shaft portion of the partition portion. A second shaft portion,
The elastic member may be provided on an outer peripheral portion of the first and second shaft portions and urged in a direction in which the partition portion and the compression portion are separated from each other.
According to this configuration, the entire compression mechanism portion can be shortened by moving the compression portion toward the partition portion against the urging force of the elastic member.

(3) The cup cover unit has an upper locking groove provided on the lower surface thereof,
The partition portion has a lower locking groove provided at a lower end portion of the first shaft portion,
The inner cylinder portion is provided at an upper end portion thereof, and an upper locking piece that is detachably engaged with the upper locking groove, and an inner cylinder portion that is provided at a lower end portion of the inner cylindrical portion and is detachably engaged with the lower locking groove. You may have a lower locking piece to stop.
According to this structure, a cup cover unit, an inner cylinder part, and a compression mechanism part can be isolate | separated separately easily and rapidly.

(4) The dust collecting container may include a link pin that is movable in a vertical direction with respect to the bottom portion and attached so as to be in contact with the compression portion of the compression mechanism portion.

In addition, according to the present invention, the electric blower having the dust collector of (4) and a mounting portion for detachably mounting the dust collector and generating an air flow in the dust collector And a driving device having
The vacuum cleaner which has a protrusion part which pushes up the compression part by pushing up the link pin in the state where the dust collecting container is placed may be provided.

  According to this vacuum cleaner, by attaching the dust collecting device to the mounting portion of the driving device, the protruding portion on the mounting portion automatically pushes up the compression portion via the link pin, whereby the dust collecting container A dust collection space is formed below the inner compression portion. Then, by removing the dust collecting container from the driving device after the cleaning is completed, the compressing portion is lowered by the elastic member and the dust accumulated in the dust collecting space is compressed.

  The disclosed embodiments should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

110, 1110, 2110 Dust collection container 120 Cup cover unit 130 Inner cylinder unit 131 Inner cylinder part 132 Compression mechanism part 132a Compression part 132b Elastic member 100, 1100, 2100 Dust collector 132c Partition part 132c ₁ Frame part 132c ₂ First shaft Part 132a ₁ compression part main body 132a ₂ second shaft part 121a ₁₁ upper locking groove 132c ₃₁ lower locking groove 131b upper locking piece 131c lower locking piece 116 link pin 205 mounting part 203 electric blower 200 driving device 206 projecting part

Claims (6)

A dust collecting container having an upper opening and a bottom, a cup cover unit covering the upper opening of the dust collecting container, and an inner cylinder unit provided on the lower surface of the cup cover unit,
The inner cylinder unit has an inner cylinder part detachably attached to the lower surface of the cup cover unit, and a compression mechanism part detachably attached to a lower end part of the inner cylinder part,
The compression mechanism portion is movable in the vertical direction and protrudes downward from the lower end portion of the inner cylinder portion; and an elastic member capable of urging the compression portion toward the bottom portion of the dust collecting container. A dust collector for a vacuum cleaner, characterized by comprising:   The dust collector according to claim 1, wherein the compression mechanism portion further includes a partition portion provided above the compression portion so as to be close to an outer peripheral portion of the inner cylinder portion. The partition portion includes a frame portion disposed in proximity to the outer peripheral portion of the inner cylinder portion, and a cylindrical first portion continuously provided at a lower end portion of the frame portion so as to be inserted into the inner cylinder portion. 1 shaft part,
The compression portion is continuously provided on the compression portion main body so as to be slidably inserted into the compression shaft main body protruding downward from the lower end portion of the inner cylinder portion and the first shaft portion of the partition portion. A second shaft portion,
The dust collector according to claim 2, wherein the elastic member is provided on an outer peripheral portion of the first and second shaft portions and biases the partition portion and the compression portion in a direction in which they are separated from each other. The cup cover unit has an upper locking groove provided on the lower surface thereof,
The partition portion has a lower locking groove provided at a lower end portion of the first shaft portion,
The inner cylinder portion is provided at an upper end portion thereof, and an upper locking piece that is detachably engaged with the upper locking groove, and an inner cylinder portion that is provided at a lower end portion of the inner cylindrical portion and is detachably engaged with the lower locking groove. The dust collector according to claim 3, further comprising a lower locking piece that stops.   5. The dust collection container according to claim 1, further comprising a link pin that is movable in a direction perpendicular to the bottom portion and attached to be able to contact the compression portion of the compression mechanism portion. Dust collector. A dust collecting device according to claim 5, and a drive device having a mounting portion on which the dust collecting device is detachably mounted and an electric blower that generates a flow of air in the dust collecting device. ,
The placement unit is a vacuum cleaner having a protrusion that pushes up the compression unit by pushing up the link pin in a state where the dust collecting container is placed.

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