KR101284389B1 - Electric vacuum cleaner - Google Patents

Abstract

An electric vacuum cleaner which has a vacuum cleaner main body with good followability corresponding to the operation of a dust collecting hose, and which can suppress the fall of the suction force by the curvature of a dust collecting hose is proposed. The electric vacuum cleaner 1 includes a base portion 17, an elevation pivot support portion 18 provided on the base portion 17, a main body portion 19 pivotally supported by the elevation pivot support portion 18, and a main body portion. A connecting pipe 33 having a central axis along a plane orthogonal to the pivot axis x of 19, and a dust separation dust collecting part 26 accommodated in the main body 19 and connected to the connecting pipe 33 in communication with each other. And an electric blower 27 housed in the main body 19 and connected to the dust separation dust collector 26, and a connection pipe 33, and connected to the dust separation dust collector 26. And a dust collector hose 3.

Description

Electric vacuum cleaner {ELECTRIC VACUUM CLEANER}

This invention relates to the electric vacuum cleaner which can suppress the fall of the suction force by the curvature of a dust collecting hose.

A conventional canister type electric vacuum cleaner includes a vacuum cleaner body in which an electric blower for generating negative pressure is accommodated, a flexible dust collecting hose connected to the vacuum cleaner body, and a handle operating tube connected to the dust collecting hose. In a conventional electric vacuum cleaner, when a user pulls a handle operation tube, a vacuum cleaner main body runs.

The vacuum cleaner main body of the conventional electric vacuum cleaner is provided with the front wheel comprised by the caster at the bottom face, and a pair of rear wheel provided in the side surface. Moreover, the vacuum cleaner main body has the connection port to which the dust collecting hose was connected in the front direction of the advancing direction.

As another example, the vacuum cleaner main body of the conventional electric vacuum cleaner includes a pair of wheels having an area larger than the projection thereof, and has a connection port to which a dust collecting hose is connected to the front surface of the traveling direction (for example, , Patent Document 1).

Japanese Patent Publication No. 2003-190052

The conventional electric vacuum cleaner has the connection port fixedly opened in front of the advancing direction of a vacuum cleaner main body. Therefore, when the dust collecting hose is handled without the movement of the vacuum cleaner body, the dust collecting hose is likely to be bent. For example, on a substantially horizontal cleaning surface such as a bottom surface, the dust collecting hose moves up and down in accordance with the front-rear operation of the floor suction fitting. Moreover, on the substantially vertical to-be-cleaned surface, such as a wall surface, a dust collecting hose will face a perpendicular upward direction. Such movement of the dust collecting hose is absorbed by the curvature of the dust collecting hose with respect to the connection port fixed to the vacuum cleaner main body. At this time, the suction performance of the vacuum cleaner decreases due to the bending of the dust collecting hose. In addition, when the dust collecting hose is closed by bending, excessive load is applied to the electric blower.

In addition, the direction of the vacuum cleaner main body is variously changed with the cleaning operation of the electric vacuum cleaner. However, the conventional electric vacuum cleaner has a problem that the vacuum cleaner main body falls sideways or overturns depending on the direction in which the dust collecting hose is pulled.

In addition, when the dust collecting hose is pulled and the direction of the vacuum cleaner main body is suddenly changed, the front part of the vacuum cleaner main body momentarily floats, and the caster provided on the bottom surface of the vacuum cleaner main body hits the surface to be cleaned, and abnormal noise is generated. Offensive to the user of the vacuum cleaner.

On the other hand, the electric vacuum cleaner described in patent document 1 respond | corresponds to the tension force transmitted from a dust collecting hose to a vacuum cleaner main body, and intends to follow a vacuum cleaner main body. However, the electric vacuum cleaner of patent document 1 has the translational movement of the vacuum cleaner main body along the surface to be cleaned by the dust collection hose being pulled, the pivoting movement of the vacuum cleaner main body by the vertical movement of the dust collecting hose, and the horizontal movement of the dust collecting hose. It is difficult to achieve both the rotational movement of the vacuum cleaner body and the suppression of the curvature of the dust collecting hose by the pair of wheels provided on the main body side and the center of gravity of the vacuum cleaner body. For example, when the vacuum cleaner main body is to be pulled by pulling the dust collecting hose, the vacuum cleaner main body is turned while turning either contact point of the pair of wheels as the pivot axis. Therefore, the dust collecting hose is excessively curved, and the suction performance of the electric vacuum cleaner is lowered.

The present invention proposes an electric vacuum cleaner which has a vacuum cleaner main body with good followability in correspondence with the operation of the dust collecting hose, and which can suppress the reduction of the suction force due to the curvature of the dust collecting hose.

In order to solve the above problems, the electric vacuum cleaner according to the present invention includes a base, an elevation pivot support provided on the base, a main body pivotally supported on the elevation pivot support, and a pivot shaft of the main body. A connection pipe having a central axis along a plane perpendicular to the cross section; a dust separation dust collector accommodated in the main body portion and connected to the connection tube; and an electric transmission housed in the main body portion and connected to the dust separation dust collector. And a blower and a flexible dust collecting hose connected to the connecting pipe and connected to the dust separation dust collecting unit.

According to the present invention, it is possible to propose an electric vacuum cleaner having a vacuum cleaner main body having good followability in correspondence with the operation of the dust collecting hose, and capable of suppressing the reduction of the suction force due to the bending of the dust collecting hose.

1 is a perspective view showing the appearance of an electric vacuum cleaner according to an embodiment of the present invention.
2 is a front view of a vacuum cleaner body of the electric vacuum cleaner according to the embodiment of the present invention.
3 is a plan view of a vacuum cleaner body of the electric vacuum cleaner according to the embodiment of the present invention.
4 is a side view of the vacuum cleaner body of the electric vacuum cleaner according to the embodiment of the present invention.
5 is a cross-sectional view showing the vacuum cleaner body of the electric vacuum cleaner according to the embodiment of the present invention.
6 is a cross-sectional view of another example showing the vacuum cleaner body of the electric vacuum cleaner according to the embodiment of the present invention.

EMBODIMENT OF THE INVENTION Embodiment of the electric blower which concerns on this invention is described with reference to FIGS.

1 is a perspective view showing an appearance of an electric vacuum cleaner according to an embodiment of the present invention.

2 is a front view of the vacuum cleaner main body of the electric vacuum cleaner according to the embodiment of the present invention.

3 is a plan view of the vacuum cleaner body of the electric vacuum cleaner according to the embodiment of the present invention.

4 is a side view of the vacuum cleaner body of the electric vacuum cleaner according to the embodiment of the present invention.

1 to 4, the electric vacuum cleaner 1 according to the present embodiment includes a vacuum cleaner main body 2, a dust collecting hose 3, a handle operating tube 4, and a gripper ( 5), the operation part 6, the extension pipe 7, and the suction port 8 are included.

The vacuum cleaner main body 2 includes the connection port 2a. One end of the dust collecting hose 3 is detachably connected to the connection port 2a.

The vacuum cleaner main body 2 has a base 17 placed on the surface to be cleaned F, an elevation pivot support 18 provided on the base 17, and a pivot axis x of the elevation pivot support 18. A main body 19 that is pivotally supported (in the direction of the solid arrow Rx in FIGS. 1 and 4) is supported.

The base 17 includes a base body 21 placed on the surface to be cleaned F, a turning base 22 supported on the base body 21 so as to be rotatable, and a secondary that supplies electric power to the body 19. And a battery 23.

At least three casters 24 (wheels) are provided on the bottom of the base body 21. When the caster 24 puts the vacuum cleaner main body 2 on a substantially horizontal cleaning surface F, the orthographic projection position of the center of gravity of the vacuum cleaner main body 2 with respect to the cleaning surface F, Polygons having the casters 24 as vertices, for example, when there are three casters 24, are arranged to be located inside the triangle. Specifically, the casters 24 are disposed at substantially equal intervals in the vicinity of the outer circumference of the bottom of the base body 21. Therefore, the vacuum cleaner main body 2 enables the stable turning operation | movement and the traveling operation | movement on the surface to be cleaned F by the caster 24.

The pivot base part 22 is supported so that pivoting (solid line arrow Rz direction in FIGS. 1 and 3) is possible around the pivot axis z of the base body 21. The pivot shaft z is arrange | positioned in the normal direction of the surface to be cleaned when the vacuum cleaner main body 2 is placed on the surface to be cleaned. Specifically, the pivot shaft z becomes substantially vertical when the vacuum cleaner main body 2 is placed on the surface to be cleaned F, such as a substantially horizontal floor. The pivot base 22 has an elevation pivot support 18.

The secondary battery 23 is housed in the base 17. Specifically, the secondary battery 23 is disposed around the main body 19. Moreover, you may arrange | position so that the secondary battery 23 may surround the whole periphery of the main-body part 19, and may arrange | position so that only the side of the main-body part 19 of the elevation pivot support part 18 vicinity may be enclosed. In addition, the secondary battery 23 may be accommodated in either of the base body 21 and the pivot base portion 22.

The elevation pivot support 18 pivotally supports the main body 19 about the pivot axis x. The pivot shaft x is substantially parallel to the surface to be cleaned when the vacuum cleaner main body 2 is placed on the surface to be cleaned F, such as a substantially horizontal floor.

The main body portion 19 is approximately parallel in one direction to a substantially parallel state in the other direction with respect to the cleaning surface F, which is the surface on which the base 17 is placed, by the elevation pivot support portion 18. It is pivotally supported and is supported by the pivot base 22 so as to be able to pivot 360 ° around the normal of the surface to be cleaned. The main body 19 and the pivot base 22 are supported by the base body 21 so as to be able to pivot integrally. The main body 19 includes a dust separation dust collector 26 and an electric blower 27. In addition, the main body 19 has a main body handle 28 (main body holding part) and a main body exhaust port (not shown) through which exhausts from the electric blower 27 are discharged.

The main body 19 has a connection port 2a to which a dust collecting hose 3 is connected. When the dust collecting hose 3 is pulled and the vacuum cleaner main body 2 is pulled, the main body 19 is dust-collected by appropriately moving up and down with respect to the surface to be cleaned F which is the surface on which the base 17 is placed. Curvature of the hose 3 can be suppressed. Specifically, as shown in FIG. 4, the main body 19 moves up and down as appropriate, following the attraction of the dust collecting hose 3. For example, when the dust collecting hose 3 is pulled in one direction substantially horizontal to the surface to be cleaned, the main body 19 causes the connector 2a to follow the one direction that is substantially horizontal (solid line arrow in FIG. 4). A). In addition, when the dust collecting hose 3 is pulled substantially perpendicularly to the surface to be cleaned, the main body 19 causes the connection port 2a to follow substantially upward (followed by solid arrow B in FIG. 4). Moreover, when the dust collecting hose 3 is pulled in the other direction which is substantially horizontal with respect to the to-be-cleaned surface, the main-body part 19 makes the connection port 2a follow the other direction which is substantially horizontal (solid line arrow in FIG. 4). C). Moreover, the main body part 19 changes the direction of the connection port 2a suitably in accordance with the pull of the dust collecting hose 3 in the range which can be pivoted. Thereby, the curvature of the dust collecting hose 3 accompanying the pulling of the vacuum cleaner main body 2 is suppressed by the electric vacuum cleaner 1, and the fall of the suction performance by the curvature of the dust collecting hose 3 can be suppressed. Can be.

The vacuum cleaner main body 2 is provided with the click mechanism 30 (coupling separation mechanism). The click mechanism 30 is provided with the locking hook 30a formed in the elevation pivot support part 18, and the locking recessed part formed in the main-body part 19. As shown in FIG. The click mechanism 30 can temporarily fix the main body 19 to a predetermined lowered or raised angle by the locking hooks 30a and the locking recesses 30b that can be separated from each other. It is configured. The click mechanism 30 temporarily fixes the pivotable main body 19 at an appropriate pivot position when the catching hook 30a and the catching recess 30b are caught with each other. Specifically, when the click mechanism 30 places the vacuum cleaner main body 2 on the surface to be cleaned F such as a substantially horizontal floor or the like, the main body 19 is placed in a state in which the connector 2a is vertically upward. Can be configured to temporarily freeze.

The dust collecting hose 3 is flexible and is formed in an elongate substantially cylindrical shape which can be bent. One end of the dust collecting hose 3 is detachably connected to the connection port 2a. The dust collecting hose 3 is connected in communication with the inside of the vacuum cleaner main body 2.

One end of the handle operating tube 4 is provided at the other end of the dust collecting hose 3. The handle operating pipe 4 is connected to communicate with the inside of the vacuum cleaner main body 2 via the dust collecting hose 3.

The holding part 5 is a user of the electric vacuum cleaner 1 to hold and operate the electric vacuum cleaner 1. The grip part 5 protrudes to the other end of the handle operation tube 4, and is formed by bending toward one end of the handle operation tube 4 in which the dust collecting hose 3 is installed.

The operation part 6 is provided in the holding part 5. The user of the electric vacuum cleaner 1 can operate the operation unit 6 to set the electric vacuum cleaner 1 in a plurality of driving modes. The operation unit 6 includes an off switch 6a for stopping the operation of the electric vacuum cleaner 1 and a start switch 6b for starting the operation of the electric vacuum cleaner 1.

The extension pipe 7 is formed in the elongate substantially cylindrical shape which can be extended | stretched. The extension pipe | tube 7 is comprised by telescopic structure by overlapping several cylindrical body. One end of the extension pipe 7 is detachably connected to the other end of the handle operation pipe 4. The extension pipe 7 is connected in communication with the inside of the vacuum cleaner main body 2 via the handle operation pipe 4 and the dust collecting hose 3.

The suction port 8 is detachably connected to one end of the extension pipe 7. The suction port 8 is connected in communication with the inside of the vacuum cleaner main body 2 via the extension pipe 7, the handle operation pipe 4, and the dust collecting hose 3. The suction port 8 has a suction port (not shown). The suction port is opposed to the surface to be cleaned when the suction port 8 is placed on the surface to be cleaned F, such as the bottom surface.

When the start switch 6b of the operation part 6 is pressed, the electric vacuum cleaner 1 operates so that the electric blower 27 may start operation and a negative pressure may act on the dust separation dust collector 26. This negative pressure acts on the suction port 8 from the connection port 2a via the dust collecting hose 3, the handle operation pipe 4, and the extension pipe 7. Then, the electric vacuum cleaner 1 cleans | cleans the to-be-cleaned surface F by inhaling the dust stored in the to-be-cleaned surface F with the air from the inlet of the inlet body 8 with air. The dust-containing air sucked into the inlet port 8 is separated into air and dust by the dust separation dust collecting unit 26 accommodated in the vacuum cleaner main body 2. The separated dust is collected in the dust separation dust collector 26. On the other hand, the separated air passes through the electric blower 27 and is discharged to the outside of the vacuum cleaner main body 2 from the main body exhaust port.

5 is a cross-sectional view showing the vacuum cleaner body of the electric vacuum cleaner according to the embodiment of the present invention.

As shown in FIG. 5, the vacuum cleaner body 2 of the electric vacuum cleaner 1 includes a base 17, an elevation pivot support part 18, and a body part 19.

The base 17 includes a base body 21 and a pivot base 22.

The caster 24 of the base body 21 is rotatably supported by the caster shaft 32 provided on the bottom surface of the base body 21. The pivot axis Rc of each caster shaft 32 is substantially perpendicular to the surface to be cleaned F which is the surface on which the base 17 is placed and the caster 24 is in contact with each other. Each caster shaft 32 is configured parallel to each other. The pivot shaft Rc of the caster shaft 32 does not intersect the axle 24a of the caster 24, and is in the twisted position with each other.

The main body 19 includes a connecting pipe 33 having a connection port 2a of the vacuum cleaner main body 2, a dust separating dust collecting part 26 connected in communication with the connecting pipe 33, and a dust separating dust collecting part 26. ) And an electric blower (27) connected in communication with each other.

The opening end of the connection pipe 33 is the connection port 2a of the vacuum cleaner main body 2. As for the connection pipe 33, the central axis c is arrange | positioned in either direction along the plane (for example, cross section of FIG. 5) orthogonal to the pivot axis x. More specifically, the connecting pipe 33 is opened along the surface whose center axis c is orthogonal to the pivot axis x, and in the direction away from the pivot axis x. , At the position furthest from the pivot axis x.

Moreover, the main-body part 19 is equipped with main-body handles 28a and 28b (main body holding part and 2nd main body holding part) arrange | positioned axially symmetric with respect to the pivot axis x. The main body handle 28a is provided so that the main body 19 can be gripped at a pivot position where the main body 19 is substantially parallel in one direction with respect to the surface to be cleaned F which is the surface on which the base 17 is placed. On the other hand, the main body handle 28b is provided so that it can be grasped in the pivot position which the main-body part 19 is substantially parallel to the other direction with respect to the cleaning surface F which is the surface on which the base 17 is placed. The vacuum cleaner main body 2 can be transported by the main body handles 28a and 28b even if the main body 19 is oriented in any pivoting direction. The main body handles 28a and 28b improve the carryability of the vacuum cleaner body 2.

Hereinafter, the cleaning operation of the electric vacuum cleaner 1 according to the present embodiment will be described.

The user of the vacuum cleaner 1 first connects the dust collecting hose 3 to the connection port 2a of the vacuum cleaner main body 2. Next, the user of the electric vacuum cleaner 1 connects the extension tube 7 to the handle operation tube 4. Next, the user of the electric vacuum cleaner 1 connects the suction port 8 to the extension pipe 7.

Next, the user of the electric vacuum cleaner 1 holds the suction port 8 on the cleaning surface F such as the floor surface, and grips the holding portion 5 to operate the start switch 6b. Then, the electric blower 27 operates according to the operation mode set by the start switch 6b.

Next, the user of the electric vacuum cleaner 1 moves the handle operation tube 4 and the extension tube 7 while holding the holding part 5 to drive the suction port 8.

At this time, for example, when the user of the electric vacuum cleaner 1 repeatedly moves the grip portion 5 back and forth to clean the surface to be cleaned, the handle operating tube 4, the extension tube 7, and the suction port ( 8) reciprocate back and forth. According to this operation, the main body 19 of the vacuum cleaner body 2 follows the curvature of the dust collecting hose 3 and pivots around the pivot axis x of the elevation pivot support 18. The same applies to the case where the user of the electric vacuum cleaner 1 cleans the wall by repeatedly moving the holding part 5 up and down.

In addition, when the user of the electric vacuum cleaner 1 suddenly changes the moving direction and pulls the holding part 5, the vacuum cleaner main body 2 is a dust collecting hose by the turning base part 22 or the caster 24. Follow the curvature of 3) and make a pivoting motion around the pivot axis z.

Moreover, when the user of the electric vacuum cleaner 1 pulls the holding part 5 to move the place to be cleaned, the vacuum cleaner main body 2 is an elevation pivot support part 18, the turning base part 22, and the caster ( By 24), the curvature of the dust collecting hose 3 is followed, the vertical movement and the turning movement are carried out, and the to-be-cleaned surface F runs.

Therefore, the vacuum cleaner main body 2 is operated by the elevation pivot support part 18, the turning base part 22, and the caster 24, and the movement of the main body part 19 is operated by the user of the electric vacuum cleaner 1. The curvature of the dust collecting hose 3 is suppressed by making it follow the curvature of the accompanying dust collecting hose 3. In addition, the vacuum cleaner main body 2 can be directed toward the connection port 2a of the main body 19 in the direction in which the tensile force transmitted from the dust collecting hose 3 acts. By suppressing the curvature of the dust collecting hose 3, the fall of the suction performance of the vacuum cleaner 1 accompanying the curvature of the dust collecting hose 3 is also suppressed.

On the other hand, the dust on the surface to be cleaned F is sucked into the suction port of the suction port 8 together with the air. The dust-containing air sucked into the inlet port 8 passes through the extension tube 7, the handle operating tube 4, and the dust collecting hose 3 in this order, and then connects the connection port 2a of the vacuum cleaner body 2. Through this, it is sucked into the inside of the vacuum cleaner main body 2.

The dust containing air sucked in the inside of the vacuum cleaner main body 2 is guided to the dust separation dust collector 26. Here, dust containing air is isolate | separated into air and dust by the dust separation dust collecting part 26. The separated dust is collected by the dust separation dust collector 26. On the other hand, the separated air is taken in by the electric blower 27, passes while cooling the electric blower 27, and is exhausted to the outside of the vacuum cleaner main body 2 from the main body exhaust port.

6 is a cross-sectional view of another example showing the vacuum cleaner body of the electric vacuum cleaner according to the embodiment of the present invention.

As shown in FIG. 6, the vacuum cleaner body 2A of the electric vacuum cleaner 1 includes a base 17A, an elevation pivot support part 18, and a body part 19.

The base 17A includes a base body 21A and a swing base 22.

The base body 21A includes a cord reel 35. The cord reel 35 is accommodated in the base body 21A. The axis of rotation of the cord reel 35 is arranged in accordance with the axis of rotation of the pivot table 22. The power cord 36 is wound around the cord reel 35. The power cord 36 supplies electric power to the electric blower 27 of the main body 19. A power plug 37 is formed at the free end of the power cord 36.

In the vacuum cleaner main body 2A configured as described above, the power cord 36 is vacuumed by the pivoting motion and the pivoting motion of the main body 19 regardless of the state of the base main body 21A on which the power cord 36 is installed. It is prevented from being wound or wound around the cleaner body 2A.

According to the electric vacuum cleaner 1 which concerns on this embodiment, the dust collection hose accompanying operation by the user of the electric vacuum cleaner 1 is carried out by the elevation pivot support part 18, the turning base part 22, and the caster 24. FIG. By following the movement of the main body 19 to the movement of (3), the curvature of the dust collecting hose 3 can be suppressed. Thereby, the electric vacuum cleaner 1 can suppress the fall of the suction performance by the curvature of the dust collecting hose 3. In addition, the electric vacuum cleaner 1 can also avoid the bending of the dust collecting hose 3.

Moreover, according to the electric vacuum cleaner 1 which concerns on this embodiment, it is accompanied by operation by the user of the electric vacuum cleaner 1 by the elevation pivot support part 18, the turning base part 22, and the caster 24. FIG. By following the movement of the main body 19 to the movement of the dust collecting hose 3, the main body 19 can be directed in the direction in which the tensile force transmitted from the dust collecting hose 3 acts. As a result, the vacuum cleaner main body 2 receives the tensile force transmitted from the dust collecting hose 3 while maintaining a stable posture. Therefore, the vacuum cleaner main body 2 can perform a smooth translation movement, a turning movement, and a pivot movement, without falling to the side or overturning. Therefore, even if the direction of the vacuum cleaner main body 2 is changed abruptly, the caster 24 of the vacuum cleaner main body 2 does not collide with the surface to be cleaned F, and abnormal noise does not occur and electric No discomfort is given to the user of the vacuum cleaner 1.

Further, according to the electric vacuum cleaner 1 according to the present embodiment, the translational movement is performed by the caster 24, the pivoting movement is made by the caster 24 and the pivoting base 22, and the pivoting movement is an elevation pivot support part. Since each is independently performed by 18, the vacuum cleaner main body 2 by turning and pivoting the vacuum cleaner main body 2 corresponding to the curvature of the dust collecting hose 3, and the dust collecting hose 3 are attracted. It is very light and smooth operation of the translational movement.

Further, according to the electric vacuum cleaner 1 according to the present embodiment, since the weight of the main body 19 can be made as light as possible by storing the secondary battery 23 in the base 17, the lightness of the pivoting motion is improved. There is no damage.

Moreover, according to the electric vacuum cleaner 1 which concerns on this embodiment, the turning base part 22 and the main body part 19 are rotated by accommodating the power cord 36 and the cord reel 35 in 21 A of base bodies. During the movement, the power cord 36 is prevented from being wound or wound around the vacuum cleaner body 2.

Moreover, according to the electric vacuum cleaner 1 which concerns on this embodiment, since main-body handles 28a and 28b are provided in the main-body part 19, the portability of the main-body part 19 can be ensured enough.

Therefore, according to the electric vacuum cleaner 1 which concerns on this embodiment, the vacuum cleaner main body 2 with good followability is provided in correspondence with the operation | movement of the dust collecting hose 3, and the suction force by the curvature of the dust collecting hose 3 is provided. Can be suppressed.

1: electric vacuum cleaner
2, 2A: vacuum cleaner body
2a: splice
3: dust collecting hose
4: handle operator
5: grip
6: control panel
6a: off switch
6b: start switch
7: extension tube
8: suction port
17, 17A: donation
18: Elevation pivot support
19: main body
21, 21 A: base body
22: turning loan
23: secondary battery
24: caster
24a: axle
26: dust separation dust collector
27: electric blower
28: body handle
30: click mechanism
30a: hook
30b: locking recess
32: caster shaft
33: connector
35: cord reel
36: power cord
37: power plug

Claims (10)

Base unit,
An elevation pivot support installed at the base;
A main body pivotably supported by the elevation pivot support;
A connecting tube having a central axis along a plane orthogonal to the pivot axis of the main body portion;
A dust separation dust collecting unit accommodated in the main body and connected to the connection pipe;
An electric blower accommodated in the main body and connected in communication with the dust separation dust collecting unit,
A flexible dust collecting hose connected to the connecting pipe and connected to the dust separation dust collecting unit,
Is installed on the base and includes at least one of a secondary battery and a power cord for supplying power to the electric blower,
The base includes a base body and a pivot base supported by the base body so as to be pivotable and having the elevation pivot support portion,
An electric vacuum cleaner, wherein the main body portion is rotatably supported by the pivot stand. The method of claim 1,
The base has at least three wheels. The method of claim 2,
And the wheels are pivotally provided about a pivot axis perpendicular to the plane with which the wheels are in contact, the axle of the wheel and the pivot axis being in a skewed position. delete 4. The method according to any one of claims 1 to 3,
The secondary battery is accommodated in the base, and provided in a position surrounding the body portion. The method of claim 1,
The power cord is provided to the base body. 4. The method according to any one of claims 1 to 3,
The main body part is pivotally supported from a state parallel to one surface to a state parallel to the opposite direction with respect to a surface on which the base is placed. 4. The method according to any one of claims 1 to 3,
Further comprising a coupling separation mechanism,
The said coupling separating mechanism can fix the said main-body part when the center axis of the said connection pipe is directed to the normal direction of the surface on which the said base is placed. 4. The method according to any one of claims 1 to 3,
And a body gripping portion capable of gripping at a pivot position where the body portion is parallel in one direction with respect to the surface on which the base is placed. 10. The method of claim 9,
And a second body gripping portion that is grippable at a pivot position parallel to the direction opposite to the one direction, with respect to the surface on which the base is placed.

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