CN112932321B

CN112932321B - Vacuum cleaner with a vacuum cleaner head

Info

Publication number: CN112932321B
Application number: CN201911265320.9A
Authority: CN
Inventors: 卞庄
Original assignee: Suzhou Chenghe Cleaning Equipment Co Ltd
Current assignee: Suzhou Chenghe Cleaning Equipment Co Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2022-04-26
Anticipated expiration: 2039-12-11
Also published as: CN112932321A

Abstract

The present invention relates to a vacuum cleaner comprising: the vacuum cleaner comprises a cleaner main body and a cleaning head, wherein the cleaner main body comprises a deformable rack and a portable surface cleaning unit, the portable surface cleaning unit comprises a dust barrel and a dust collection motor, the deformable rack comprises an air circulation conduit and a handle rod, the portable surface cleaning unit is fixedly arranged on the air circulation conduit, the vacuum cleaner has two working states, in the first working state, the deformable rack is in an unfolded state, the first end part of the air circulation conduit is connected with the cleaning head and is in air flow communication, the second end part of the air circulation conduit is connected with the first part of the handle rod, dust-containing air flow enters the dust barrel through the cleaning head and the air circulation conduit, and the gravity center of the vacuum cleaner is positioned below the handle rod; in a second operating condition, the first end of the air flow conduit is spaced from the cleaning head, the deformable frame is in a collapsed condition, the first end of the air flow conduit is closed, the dusty air stream enters the dirt cup via the second end of the air flow conduit, and the center of gravity of the vacuum cleaner is located above the handle bar.

Description

Vacuum cleaner with a vacuum cleaner head

Technical Field

The invention belongs to the technical field of cleaning equipment, and particularly relates to a vacuum cleaner.

Background

In the prior art, a handheld dust collector is favored by people due to the advantages of portability and flexibility, when a user uses the handheld dust collector to perform cleaning operation in a small area range, such as dust collection operation on the bottom of a sofa, the bottom of a tea table, the dead corners of a wall body, the interior of an automobile and the like, the user often attaches a cleaning accessory to the handheld dust collector to complete the dust collection operation, for example, attaches a section of air circulation conduit to the handheld dust collector, and then installs a cleaning head at the other end of the air circulation conduit, so that the handheld dust collector can be used for performing dust collection operation on indoor ground to be cleaned; it is also possible to attach a suction stub or a flat nozzle for suction work elsewhere above the floor, for example a spider web on the ceiling or the like.

In the above structure, the vacuum cleaner generally includes a cleaning accessory such as a cleaning head, a cleaner main body and a handle lever, the cleaner main body generally includes a fluid path, a dust bucket, a dust collection motor and a battery pack, the fluid path, the dust bucket and the dust collection motor are sequentially communicated with each other by air flow, during operation, the dust collection motor provides negative pressure suction force for dust and air to enter the fluid path, the dust and air are sucked into the dust bucket through the fluid path on the cleaner main body, the dust is left in the dust bucket, and clean air is discharged to the external environment through an air outlet of the dust collection motor. The dust barrel usually comprises a dust cup and an air-dust separation component arranged in the dust cup, and because the dust collection motor accounts for most of the weight of the main machine of the dust collector, most of the weight needs to be borne when a user performs cleaning operation on the ground by adopting the handheld vacuum cleaner, namely the gravity center of the dust collector is higher and is close to the wrist of the user, and the wrist of the user is easy to fatigue.

Disclosure of Invention

In order to solve the above technical problems, an object of the present invention is to provide a vacuum cleaner which is more convenient and labor-saving to operate.

In order to achieve the purpose of the invention, the invention adopts the following technical scheme: a vacuum cleaner comprises a vacuum cleaner body, a vacuum chamber,

a cleaning head having a dirty air suction opening for moving across a surface to be cleaned and cleaning;

a deformable frame including an air flow conduit removably mounted on said cleaning head and a handle bar movably mounted on said air flow conduit;

a portable surface cleaning unit comprising a dirt cup and a suction motor, the portable surface cleaning unit being mounted on the deformable housing and the air circulation conduit forming part of a fluid path from a surface to be cleaned to the portable surface cleaning unit;

said vacuum cleaner having two modes of operation, in a first mode of operation said cleaner head is mounted on said deformable frame and a stream of dirty air is passed into the portable surface cleaning unit via said cleaner head and an air flow conduit, said handle bar being connected to said air flow conduit at a first location whereby forces exerted on said handle bar are transferred to said cleaner head; in a second mode of operation, the cleaning head is separated from the deformable frame, the handle bar is supported in a second position on the air flow conduit, and a dusty air stream is directed into the portable surface cleaning unit from one end of the air flow conduit.

In the above solution, preferably, the portable surface cleaning unit is mounted on the air circulation duct.

In the above technical solution, preferably, in the first operation mode, the center of gravity of the vacuum cleaner is located below the handle bar; in the second mode of operation, the vacuum cleaner has a centre of gravity located above the handle bar.

In the above technical solution, preferably, the air flow conduit has a first end and a second end respectively communicating with the fluid path, the handle bar further includes a grip portion, the first portion and the grip portion are respectively located at two sides of the second portion, and in a first operation mode, the first end is connected to the cleaning head, the second end is closed, and the first portion of the handle bar is closer to the air flow conduit than the grip portion.

In the above technical solution, preferably, the first portion of the handle lever is rotatably connected to the second end of the air flow conduit, and in the second operation mode, the first end is separated from the cleaning head, the second portion of the handle lever is connected to the air flow conduit, and the dust-containing air flow enters the portable surface cleaning unit through the second end of the air flow conduit, and the first end of the air flow conduit is closed.

In the above technical solution, preferably, the first portion of the handle bar is detachably connected to the second end of the air flow conduit, and in the second operation mode, the first end is separated from the cleaning head, the second portion of the handle bar is connected to the air flow conduit, and the dust-containing air flow enters the portable surface cleaning unit through the first end of the air flow conduit, and the second end of the air flow conduit is closed.

In the above aspect, the air flow duct preferably further includes a shut-off member capable of closing the first end portion or the second end portion.

In the first working mode, the central lines of the air circulation duct and the second part of the handle rod are at least partially overlapped or parallel; in a second working mode, the included angle between the air circulation conduit and the central line of the second part of the handle rod is less than or equal to 5 degrees.

In the above technical solution, preferably, a mechanism is provided between the air flow conduit and the handle bar to enable the air flow conduit and the handle bar to be firmly combined.

In the above technical solution, preferably, a battery pack for supplying power to the portable surface cleaning unit is further disposed on the handle bar.

According to the invention, the air circulation conduit and the handle rod are connected in a deformable combined manner, so that the gravity center of the vacuum cleaner can be adjusted along with the change of the working mode, and a user can obtain more comfortable and labor-saving operation experience.

Drawings

FIG. 1 is a schematic view showing a vacuum cleaner in a first operation mode according to embodiment 1;

FIG. 2 is a schematic view showing a structure of connecting an air-circulation duct and a handle bar in embodiment 1;

FIG. 3 is a schematic view of the air flow direction of the vacuum cleaner in the second operation mode in accordance with embodiment 1;

FIG. 4 is the schematic view of the vacuum cleaner in the second operation mode shown in FIG. 1, wherein the user holds the handle bar to operate the vacuum cleaner for cleaning an elevated area;

FIG. 5 is a schematic view showing the construction of the vacuum cleaner in the first operation mode according to embodiment 2;

FIG. 6 is a schematic view showing a structure of connection between an air-circulation duct and a handle bar in embodiment 2;

FIG. 7 is a schematic view of the air flow direction of the vacuum cleaner in the second operation mode in accordance with embodiment 2;

FIG. 8 is the schematic view of the vacuum cleaner of embodiment 2 in the second operation mode, wherein the user holds the handle bar to operate the vacuum cleaner for cleaning high places

Wherein: wherein: 10. a transformable frame; 100. a cleaner main body; 11. a portable surface cleaning unit; 12. a handle bar; 200. a cleaning head; 14. a dust barrel; 15. a dust collection motor; 16. a fluid path; 17. a first end portion; 121. a first region; 122. a second region; 123. a grip portion; 19. an air circulation duct; 22. a second end portion; 23. and (4) cutting off the part.

Detailed Description

For the purpose of illustrating the technical content, the constructional features, the achieved objects and the effects of the invention in detail, reference will be made to the following detailed description of the embodiments in conjunction with the accompanying drawings. Wherein, the upper, lower, front and rear positional relationships described in embodiment 1 correspond to the respective positional relationships shown in fig. 1, respectively; the upper, lower, front, and rear positional relationships described in embodiment 2 correspond to the respective positional relationships shown in fig. 5, respectively.

Example 1

As shown in fig. 1, the vacuum cleaner includes a hand-held cleaner body 100 and a cleaner head 200 attached to the cleaner body 100. The lower part of the cleaner head 200 has a dirty air suction opening from which a dirty airflow enters the cleaner body 100.

As shown in fig. 2, the cleaner body 100 includes a transformable frame 10 and a portable surface cleaning unit 11, and the transformable frame 10 is transformable by unfolding and folding so as to assume different frame configurations. The portable surface cleaning unit 11 includes a dirt cup 14 and a suction motor 15, as well as a battery pack and the like, while the transformable frame 10 includes an air flow conduit 19 and a handle bar 12, the air flow conduit 19 being hollow inside and forming part of a fluid path 16 communicating the cleaning head 200 to the dirt cup 14. The dust tub 14 and the dust suction motor 15 are fixed to the air ventilation duct 19. The air flow conduit 19 has a first end 17 and a second end 22 disposed opposite to each other and an air inlet port therebetween, which is in constant air flow communication with the dirt cup 14.

The handle bar 12 includes a first portion 121, a second portion 122 and a holding portion 123, the second portion 122 is a support main portion of the handle bar 12 and has an elongated rod shape, and the first portion 121 and the holding portion 123 are respectively located at two ends of the second portion 122. A mechanism for firmly combining the handle bar 12 and the air flow conduit 19 is disposed between the handle bar 12 and the air flow conduit 19, for example, a clamping block capable of being clamped on the outer side of the air flow conduit 19 or the handle bar 12 is designed on the handle bar 12 or the air flow conduit 19. In addition, for a hand-held vacuum cleaner, a battery pack is included and is provided on the handle bar 12.

In embodiment 1, the second end 22 of the air flow conduit 19 is pivotally connected to the handle lever 12 via the first portion 121. The change in the relative position between the air flow conduit 19 and the handle bar 12 constitutes a change in the transformable frame 10 between the expanded and collapsed positions.

The vacuum cleaner has two modes of operation, in a first mode of operation, as shown in figure 1, in which the deformable frame 10 is in a deployed condition, the cleaner head 200 is mounted on the deformable frame 10 with the air flow conduit 19 substantially in line with the second portion 122, a stream of dirty air is passed through the cleaner head 200, the air flow conduit 19 and into the portable surface cleaning unit, the handle bar 12 is attached to the air flow conduit 19 at a first portion 121 so as to transfer forces exerted on the handle bar 12 to the cleaner head 200, and the second end 22 of the air flow conduit 19 is open so that the first portion 121 closes the central aperture of the second end 22 only when it is attached to the handle bar 12.

Fig. 2 shows the process of changing the transformable frame 10 from the unfolded state to the folded state.

In a second mode of operation, as shown in figures 3 and 4, the cleaner head 200 is separated from the deformable housing 10, the deformable housing 10 is in a folded condition, the handle bar 12 is supported in a second position beneath the air flow conduit 19 and the portable surface cleaning unit 11, the air flow conduit 19 is substantially parallel to and interlocked with the second position 122, the dirty air flow is directed into the portable surface cleaning unit 11 from the second end 22 of the air flow conduit 19, and the first end 17 of the air flow conduit 19 is provided with the cut-off 23.

In the first mode of operation, the centre of gravity of the vacuum cleaner is located below the handle bar 12, in particular below half the height of the air circulation duct 19, so that most of the power of the portable surface cleaning unit 11 is transferred through the cleaning head, the weight of the user's hand-held part is small, the user can perform the cleaning operation on the floor to be cleaned by simply holding the handle bar 12, and the operation experience is more comfortable.

In a second mode of operation, as shown in connection with figure 4, in which the vacuum cleaner is primarily intended to be held in the hand, or to clean an upper area above the floor, such as an indoor ceiling or the like, the user may effect a deformation of the housing by turning the air flow duct 19 upwards around its first portion 121 with the handle bar 12. At this time, the gravity center of the vacuum cleaner is located above the handle bar 12, and the distance from the handle bar 12 to the gravity center of the portable surface cleaning unit 11 is the closest, which enables the handle bar 12 to have a balanced supporting effect, and the point of application of force of the user is closer to the gravity center of the surface cleaning unit 11, so that a more flexible operation experience can be obtained.

The cleaning head 200 is normally provided with a roller brush and is driven by a roller brush motor, and the first and second ends of the air circulation duct should be provided with electrical terminals, respectively, in order to ensure that the vacuum cleaner can supply power to the roller brush motor in both the first and second modes of operation when the battery pack is provided on the handle bar 12. In some other embodiments of the invention, the vacuum cleaner may also be mains powered, or the battery pack may be secured to the air flow conduit 19 together with the dirt cup and suction motor.

Example 2

To simplify the description, embodiment 2 differs from embodiment 1 in that, in contrast to embodiment 1, in embodiment 2 the air flow duct 19 is detachably connected to the handle bar 12, the portable surface cleaning unit is permanently connected to the air flow duct, and in both the first and second operating modes, the same end of the air flow duct 19 is fed.

As shown in fig. 5, the cleaner body 100 includes an air flow duct 19 to which the dust bucket 14 and the dust suction motor 15 are fixed. The front section of the air circulation duct is hollow, the rear section is solid or closed by the second end 22, and the fluid path 16 passes through the hollow section of the air circulation duct and then passes through the air circulation duct to extend into the dust bucket 14. In the first mode of operation, the first end 17 of the air flow conduit is connected to the cleaner head 200 and the second end 22 is connected to the handle bar 12. The dusty air current passes through cleaning head, circulation of air pipe, dirt bucket and dust absorption motor in proper order, and at this moment, the flexible frame is in under the expansion state, is 180 degrees contained angles between the second position of circulation of air pipe and handle pole. In a second mode of operation, as shown in figure 7, the transformable frame is in a collapsed position with the air flow conduit 19 detached from the cleaning head 200 and secured to the second portion 122 of the handle bar 12, and figure 6 is a transition from figure 5 to the intermediate position of figure 7, with the transformable frame air flow conduit and handle bar detached and secured again as shown in figure 7. At this time, the dust-containing air flow enters the air circulation duct from the first end portion 17, and is discharged after passing through the dust bucket and the dust-collecting motor in sequence, and the second end portion 22 of the air circulation duct is always closed. The detachable connection between the air flow duct 19 and the second portion 122 may be a snap connection, for example, a snap on the front and upper portion of the handle 12, and a snap groove corresponding to the snap on the corresponding portion of the air flow duct.

In the two embodiments, the connection mode between the air circulation duct of the dust collector and the handle rod is set to be rotary connection or multi-position detachable connection through the deformable frame, so that when a user carries out dust collection operation in a first working state, the gravity center of the vacuum dust collector is lower, and the labor is saved; and when the user carries out the dust absorption operation under the second operating condition, portable surface cleaning unit's focus is in the top of handlebar pole, therefore the flexible operation can satisfy user's multiple demand, and the operation is also more comfortable simultaneously.

In other embodiments, it is also possible that the centre of gravity of the vacuum cleaner is located above the air flow duct 19 in the first mode of operation and below the handle bar 12 in the second mode of operation.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A vacuum cleaner characterized by: it includes:

a cleaning head (200) having a dirty air suction opening for moving across a surface to be cleaned and cleaning;

a deformable frame (10) deformable between an expanded and a collapsed position and comprising an air flow conduit (19) and a handle bar (12) movably mounted on said air flow conduit (19), said air flow conduit (19) being removably mounted on said cleaning head (200) and having oppositely disposed first and second ends (17, 22) and an air intake interface between said first and second ends (17, 22), said handle bar (12) comprising a first portion (121), a second portion (122) and a grip portion (123), said first portion (121) and said grip portion (123) being located on opposite sides of said second portion (122), said second portion (122) being in the form of an elongated rod; in the deployed state of the transformable frame (10), the second end (22) of the air flow conduit (19) is in contact with the first portion (121), the air flow conduit (19) being substantially aligned with the second portion (122); -in the folded condition of said transformable frame (10), the second end (22) of said air circulation duct (19) is detached from said first portion (121), said air circulation duct (19) being substantially parallel and interlocked with said second portion (122);

a portable surface cleaning unit (11) comprising a dirt cup (14) and a suction motor (15), the portable surface cleaning unit (11) being mounted on an air circulation duct (19) of the transformable frame (10), the dirt cup (14) being in air flow communication with the air inlet interface, and the air circulation duct (19) forming part of a fluid path (16) from a surface to be cleaned to the portable surface cleaning unit (11), the first end (17) and second end (22) being in communication with the fluid path (16), respectively;

the vacuum cleaner has two working modes: in a first mode of operation, said cleaning head (200) is mounted on said deformable frame (10) and connected to said first end portion (17), said second end (22) being closed and said transformable frame (10) being in said expanded state, the handle lever (12) is connected to the air flow duct (19) at the first point (121), so as to transmit the force applied on the handle lever (12) to the cleaning head (200), the first part (121) of the handle bar (12) is closer to the air circulation duct (19) than the holding part (123), said portable surface cleaning unit (11) being located below said handle bar (12), a dusty airflow entering said portable surface cleaning unit (11) via said cleaning head (200), a first end (17) of an air circulation duct (19); in a second mode of operation, the cleaning head (200) is detached from the transformable frame (10), the transformable frame (10) is in the collapsed state, the handle bar (12) is supported and mounted on the air flow conduit (19) at the second location (122), the handle bar (12) is positioned below the air flow conduit (19) and the portable surface cleaning unit (11), the first end (17) of the air flow conduit (19) is closed, and a dusty air stream is directed into the portable surface cleaning unit (11) by the second end (22) of the air flow conduit (19).

2. The vacuum cleaner of claim 1, wherein: in a first mode of operation, the centre of gravity of the vacuum cleaner is located below the handle bar (12); in the second mode of operation, the vacuum cleaner has a centre of gravity located above the handle bar (12).

3. The vacuum cleaner of claim 1, wherein: the first part (121) of the handle lever (12) is detachably connected with the second end (22) of the air circulation duct (19).

4. The vacuum cleaner of claim 1, wherein: the air flow duct (19) also has a cut-off (23) that can be closed off at the first end (17) or the second end (22).

5. The vacuum cleaner of claim 1, wherein: in the first working mode, the central lines of the air circulation duct (19) and the second part (122) of the handle bar (12) are at least partially coincident or parallel; in the second working mode, the included angle between the air circulation duct (19) and the central line of the second part (122) of the handle bar (12) is less than or equal to 5 degrees.

6. The vacuum cleaner of claim 1, wherein: a mechanism which can enable the air circulation conduit (19) and the handle bar (12) to be firmly combined is arranged between the air circulation conduit and the handle bar.

7. The vacuum cleaner of claim 1, wherein: the handle bar (12) is also provided with a battery pack for supplying power to the portable surface cleaning unit (11).