CN113520214A

CN113520214A - Hand-held vacuum cleaner

Info

Publication number: CN113520214A
Application number: CN202010284090.7A
Authority: CN
Inventors: 卞庄
Original assignee: Suzhou Chenghe Cleaning Equipment Co Ltd
Current assignee: Suzhou Chenghe Cleaning Equipment Co Ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2021-10-22
Anticipated expiration: 2040-04-13
Also published as: CN113520214B

Abstract

The present invention relates to a hand-held vacuum cleaner comprising: a main body including a handle portion, a dust-containing air inlet, a clean air outlet, and an air flow path extending between the dust-containing air inlet and the clean air outlet, the main body having a suction motor and a rechargeable battery pack mounted thereon; the cyclone separation assembly comprises an outer wall fixedly arranged with the main machine body, a cyclone separation chamber and a dust collection chamber formed inside the outer wall, and the cyclone separation chamber is positioned on the airflow path; the filter screen is arranged in the cyclone separation chamber, and air can flow out of the cyclone separation chamber by passing through the filter screen; and the motor upstream filter is positioned at the downstream of the cyclone separation assembly, a slot is formed in the main machine body and extends to part of the outer contour surface of the main machine body, and the motor upstream filter is configured to be detachably assembled in the slot. After the handheld vacuum cleaner is used, the dust on the filter at the upstream of the motor can be easily cleaned, and the handheld vacuum cleaner is more convenient to use.

Description

Hand-held vacuum cleaner

Technical Field

The present invention relates to a hand-held vacuum cleaner.

Background

Hand-held vacuum cleaners with cyclonic separators are widely used because they do not require the replacement of filter bag consumables. The vacuum cleaner has a disadvantage in use that the dust in the cyclone separator needs to be cleaned each time after the vacuum cleaner is used. The existing garbage cleaning mode is realized by manually opening a bottom cover at the bottom of the cyclone separator. This kind of scheme not only leads to the hand of making dirty easily when actual operation, and the inside cyclone dust of cyclone is difficult clean up moreover, and user experience is poor.

Disclosure of Invention

In order to solve the above technical problems, it is an object of the present invention to provide a hand-held vacuum cleaner which can facilitate dust cleaning.

In order to achieve the purpose of the invention, the invention adopts the following technical scheme: a hand-held vacuum cleaner comprising:

a main body including a handle portion, a dust-containing air inlet, a clean air outlet, and an air flow path extending between the dust-containing air inlet and the clean air outlet, the main body having a suction motor and a rechargeable battery pack mounted thereon;

the cyclone separation assembly comprises an outer wall fixedly arranged with the main machine body, a cyclone separation chamber and a dust collection chamber formed inside the outer wall, and the cyclone separation chamber is positioned on the airflow path;

the filter screen is fixedly arranged in the cyclone separation chamber, and air can flow out of the cyclone separation chamber through passing through the filter screen;

a motor upstream filter located downstream of the cyclonic separation assembly, the main body having a slot extending to a portion of the outer contoured surface of the main body, the motor upstream filter being configured to removably fit within the slot.

In the above technical solution, preferably, the filter upstream of the motor includes a filter element and a support body for positioning the filter element, and the support body defines a filter element installation cavity.

In the above technical solution, preferably, the support body includes an outer cover, and the outer cover forms a part of an outer contour surface of the hand-held vacuum cleaner when the filter upstream of the motor is mounted in the insertion groove.

In the above technical solution, preferably, a lock mechanism capable of being unlocked is provided between the support body and the main body.

In the above technical solution, preferably, the main body has a motor housing for mounting the suction motor, and the slot is located between the motor housing and the outer wall.

In the above technical solution, preferably, the outer wall includes a bottom wall portion, the outer wall has a center line passing through the bottom wall portion, and the filter upstream of the motor can be inserted into the insertion slot in a direction perpendicular to the center line.

In the above technical solution, preferably, a surface cleaning body is disposed in the cyclone separation chamber, and the surface cleaning body is driven by a motor to move at least along the outer wall surface of the filter screen.

In the above technical solution, preferably, the main body includes a motor installation chamber, the motor is installed in the motor installation chamber, and the motor installation chamber is located inside the slot.

In the above technical solution, preferably, the main body is provided with a control key capable of triggering the motor to operate. Further preferably, the control key is mounted adjacent to the handle portion so that a user can operate the control key with a palm thumb or an index finger holding the handle portion.

After the handheld vacuum cleaner is used, the dust on the filter at the upstream of the motor can be easily cleaned, and the handheld vacuum cleaner is more convenient to use.

Drawings

FIG. 1 is a perspective view of a hand-held vacuum cleaner according to an embodiment of the present invention, with a bottom wall portion in a closed position;

figure 2 is a cross-sectional view through the outer wall centre line X of the hand-held vacuum cleaner of figure 1;

FIG. 3 is a partial view of the portion of the cyclone separator assembly of FIG. 2;

FIG. 4 is an exploded view of a surface cleaning body provided in accordance with an embodiment of the present invention;

FIG. 5 is a perspective view of a bottom wall portion provided in accordance with an embodiment of the present invention;

FIG. 6 is an enlarged schematic view of FIG. 3 at A;

FIG. 7 is an enlarged schematic view of FIG. 3 at B;

figure 8 is an exploded view of a hand-held vacuum cleaner according to an embodiment of the present invention;

FIG. 9 is a first block diagram illustrating the transmission between the components and the motor of the cyclonic separation assembly according to an embodiment of the present invention;

FIG. 10 is a second embodiment of a transmission arrangement between the components of the cyclonic separation assembly and the motor according to the present invention;

FIG. 11 is a schematic illustration of a filter provided in accordance with an embodiment of the present invention with an upstream motor removed from a main body;

FIG. 12 is an exploded view of an upstream filter of an electric motor provided in accordance with an embodiment of the present invention;

fig. 13 is a schematic view of the handheld vacuum cleaner of fig. 2 with a bottom wall portion in an open position.

Detailed Description

Fig. 1 illustrates a hand-held vacuum cleaner 100 according to an embodiment of the present invention, which may be used to vacuum various surfaces, including floor surfaces, and the like, and to which the cleaner 100 may be attached various cleaning tools, and the like, to clean the surface.

For purposes of description in relation to the drawings, the terms "upper", "lower", "right", "left", "rear", "front", "vertical", "horizontal", "inner", "outer" and derivatives thereof shall relate to the invention as oriented in fig. 1 from the perspective of a user holding the hand-held vacuum cleaner 100 during normal cleaning, which defines the handle portion 12 at the rear of the entire hand-held vacuum cleaner 100 and the air inlet duct 11 at the front of the entire hand-held vacuum cleaner 100. It is to be understood, however, that the invention may assume various alternative orientations, except where expressly specified to the contrary.

As shown in fig. 1, the hand-held vacuum cleaner 100 includes a main body 1, a rechargeable battery pack 2 mounted below the rear of the main body 1, a suction motor 3 (see fig. 2) mounted above and behind the main body 1, and a dust separating and collecting apparatus located at the front side of the suction motor 3. The dust collecting and separating apparatus of this embodiment comprises a cyclone assembly 4, and the cyclone assembly 4 can separate solid waste in a dust-containing gas flow by centrifugal separation and store the solid waste in a dust collecting chamber. The handheld vacuum cleaner 100 of this example can also be supported securely on a table by the rechargeable battery pack 2.

The main body 1 has a tilted handle portion 12, a support diagonal rib portion 13 on the front side of the handle portion 12, a dust-laden air flow inlet 14, a clean air outlet, and an air flow path extending between the dust-laden air flow inlet 14 and the clean air outlet. The main body 1 has a substantially horizontally disposed air inlet duct 11, and a dust-laden air stream inlet 14 is located at the forward-most end of the air inlet duct 11. The cyclonic separating apparatus 4 is fixedly supported above the air inlet duct 11. The support raked portion 13 is located between the cyclonic separator assembly 4 and the rechargeable battery pack 2. The handle portion 12 is located on the rear side of the support raked portion 13, and a user can grip the handle portion 12 with a hand to perform maneuvering of the cleaner 100. Support oblique muscle portion 13 except playing the effect of firm dust catcher, when the user of needs lifts up the dust catcher and cleans the surface of eminence, can also play the effect of auxiliary handle, specifically do: the user can respectively hold the inclined rib part 13 and the handle part 12 by two hands to lift or hold the dust collector 100, so that the operation is more flexible and labor-saving.

In the illustrated embodiment, the suction motor 3 is mounted within a motor housing 15 (see figure 2) of the main body 1 and is in fluid communication with the cyclonic separating assembly 4. The suction motor 3 is located downstream of the cyclonic separating assembly 4 and the clean air outlet is located downstream of the suction motor 3. By means of the suction force of the suction motor 3, the external dust-containing air flow can be continuously sucked into the cyclone separation assembly 4 from the dust-containing air flow inlet 14 at the front end of the air inlet pipe 11 for gas-solid separation.

As shown in fig. 2 and 3, the cyclonic separating apparatus 4 comprises a cylindrical outer wall 41, the outer wall 41 lying transversely above the air inlet duct 11. The outer wall 41 includes a circumferential side wall portion and a bottom wall portion 413, and the outer wall 41 has a center line X passing through the bottom wall portion 413. In this example, the circumferential side wall portion is divided into a front section and a rear section by function, the front section is a front circumferential side wall 411, the rear section is a rear circumferential side wall 412, and the bottom wall portion 413 is located at the front side of the front circumferential side wall 411; wherein the rear circumferential side wall 412 defines the cyclone chamber 42 inwardly, and the front circumferential side wall 411 and the bottom wall portion 413 together define the dust collecting chamber 43 for collecting the dust separated from the cyclone chamber 42. The dust collecting chamber 43 in this embodiment is located in front of the cyclone chamber 42, and both chambers are penetrated in the front-back direction, and the rotation axis of the cyclone chamber 42 is along the direction of the center line X. The cyclone chamber 42 and the dust collecting chamber 43 are effectively partitioned in the front-rear direction by a dust blocking skirt 55. The cyclonic separating chamber 42 has an inlet 421 located in the rear circumferential side wall 412. The dust collected in the dust collecting chamber 43 is collected from the dust-containing gas stream that has entered the cyclone chamber 42 through the gas inlet 421. The air inlet pipe 11, the air inlet 421 are structured to promote a spiral swirling flow from the air inlet 421 into the cyclone chamber 42.

The bottom wall portion 413 is located at the foremost end of the outer wall 41, and the bottom wall portion 413 is hinged to the front end portion of the front circumferential side wall 411 of the outer wall 41 such that the bottom wall portion 413 is movable between the closed position and the open position. Dust collection chamber 43 is covered when bottom wall portion 413 is in the closed position and is capable of discharging the dust accumulated in dust collection chamber 43 to the outside when bottom wall portion 413 is in the open position.

The filter screen 5 is arranged in the cyclonic separating chamber 42. The filter screen 5 is cylindrical and extends in the same direction as the center line X of the cyclone chamber 42. The filter screen 5 includes a first end 51, a second end 52, and a mesh portion 53 interposed between the first end 51 and the second end 52. The second end portion 52 is closer to the bottom wall portion 413 than the first end portion 51. For the embodiment shown in the figures, the second end 52 is forward and the first end 51 is rearward with the mesh portion 53 therebetween. The mesh portion 53 is provided with a plurality of meshes. These mesh openings provide an air outlet from the cyclonic separating chamber 42. The interior of the filter screen 5 has an exhaust passage 54 connected to the air outlet, through which exhaust passage 54 the air flowing out of the air outlet can continue downstream of the cyclone chamber 42. In this embodiment, the dust-blocking skirt 55 is tapered, and the dust-blocking skirt 55 is fixed to the second end 52 of the filter screen 5 and extends along the outer periphery of the second end 52. The mesh part 53 of the filter net 5 may be a metal filter net or an injection molded part with meshes. The mesh holes of the mesh part 53 may be circular holes, square holes or narrow strip-shaped holes.

And a dust cleaning member 6 for cleaning the dust falling in the dust collecting chamber 43. The ash removing member 6 of this example includes an ash pushing part 61 which is provided in the dust collecting chamber 43 and is movable along the center line X, that is, the ash pushing part 61 is movable back and forth along the center line X. During the movement, the dust pushing portion 61 is realized to have a storage position (position shown in fig. 3) close to the second end portion 52 of the filter net 5 and inside the dust blocking skirt 55 and an operating position (position shown in fig. 13) close to the bottom wall portion 413 and away from the dust blocking skirt 55. When the dust pushing portion 61 moves from the storage position to the working position, that is, moves in a direction toward the bottom wall portion 413, the dust pushing portion 61 performs pushing the dust dropped into the dust collecting chamber 43 toward the bottom wall portion 413 or pushing the dust out of the dust collecting chamber 43.

In this example, the dust pushing portion 61 includes a disk-shaped substrate 611 at the center and a flexible deformation portion 612 arranged around the substrate 611. The flexible deformation portion 612 of this example includes a plurality of tufts of bristles distributed along an umbrella-shaped surface. In other embodiments, the flexible deformation portion may be an annular wiper strip. The substrate 611 is integrally provided with a protruding pillar 613 extending outward on a side surface 6111 away from the bottom wall portion 413, and the protruding pillar 613 extends into the exhaust channel 54. The flexible deformation portion 612 includes an inner end portion 6121 and an outer end portion 6122 opposite to the inner end portion 6121. Wherein the inner end portion 6121 is connected to the substrate 611. When the dust pushing portion 61 is in the storage position, the flexible deformation portion 612 can be folded inside the dust blocking skirt 55 and has a folded radial profile. When the dust pushing portion 61 is at the working position, the flexible deformation portion 612 is located at the front side of the dust blocking skirt 55, and in this state, the outer end portion 6122 of the flexible deformation portion 612 contacts the inner wall surface 4110 of the front circumferential side wall 411 when the dust pushing portion 61 is at the working position; the ash pushing portion 61 has a diverging radial profile. In other embodiments, the radial profiles may also be arranged as parallel profiles.

When the dust pushing portion 61 in this example pushes along the center line X and in the direction of the bottom wall portion 413, the base plate 611 can push the dust in the middle of the dust collecting chamber 43 in the direction of the bottom wall portion 413, and the flexible deformation portion 612 can push the inner wall surface 4110 close to the front circumferential side wall 411 and the dust adhered to the inner wall surface 4110 of the front circumferential side wall 411 in the direction of the bottom wall portion 413; on one hand, the garbage in the dust collection chamber 43 can be compressed into a cluster, so that the loose garbage is effectively prevented from spreading around the air after being discharged from the dust collection chamber 43; on the other hand, base plate 611 serves to assist dust to flow out of dust collecting chamber 43, and flexible deformation portion 612 serves to wipe dust. This push away grey portion 61 can make the user in with the rubbish discharge process in the dust collecting chamber 43, realize realizing simultaneously that the dust clearance is realized to the internal face 4110 of dust collecting chamber 43, need not the user and carries out the secondary to outer wall inside and clean.

The surface cleaning body 7 is installed in the cyclone chamber 42 for cleaning the wall surface in the cyclone chamber 42. The surface cleaning body 7 is annular and arranged at the periphery of the filter screen 5. As shown in fig. 4, the surface cleaning body 7 includes a ring-shaped base 71, an inner cleaning head 72 and an outer cleaning head 73 at both inner and outer ends of the ring-shaped base 71. The surface cleaning body 7 is movable within the cyclonic separating chamber 42 along the centre line X between a first position (as shown in figures 2 and 3) and a second position (as shown in figure 13); during movement from the first position and the second position, the inner cleaning head 72 and the outer cleaning head 73 simultaneously contact the outer surface 50 of the filter screen 5 and the inner wall surface 4120 of the rear circumferential sidewall 412 of the outer wall 41, respectively. The inner and outer cleaning heads 72, 73 may be of flexible wiper strip, sponge or brush construction.

In this example, the inner cleaning head 72 and the outer cleaning head 73 of the surface cleaning body 7 respectively contact the outer surface 50 of the filter net 5 and the inner wall surface 4120 of the rear circumferential side wall 412 of the outer wall 41 during the movement of the surface cleaning body 7, which can wipe off the dust adhering to the outer surface 50 of the filter net 5 and the inner wall surface 4120 of the rear circumferential side wall 412 of the outer wall 41, which can not only avoid the problem of reduced dust separation efficiency due to clogging of the mesh of the filter net 5, but also can keep the effective volume of the cyclone chamber as one as long as possible by wiping off the dust adhering to the inner wall surface of the outer wall and the outer surface of the filter net.

As shown in fig. 5, the bottom wall portion 413 includes a disk-shaped bottom wall body 4131, an ear portion 4132 located at one side of the bottom wall body 4131, and a hook portion 4133 located at the other side of the bottom wall body 4131. The ears 4132 have a first attachment end 41321 and a second attachment end 41322. The hook portion 4133 is provided with a third attachment end 41331, and in this example, the hook portion 4133 is designed to have a certain amount of deformation.

As shown in fig. 6, the first attachment end 41321 of the ear portion 4132 is hinged to the front circumferential side wall 411 of the outer wall 41 by a first pivot 4134. The second attachment end 41322 of the ear 4132 is hingedly connected to the post 84, as discussed below, by a second pivot 4135. The front circumferential side wall 411 of the outer wall 41 is provided with a protrusion 4114 at a corresponding position.

As shown in fig. 7, the third attachment end 41331 of the hook portion 4133 is locked to the outer wall 41 by the protrusion 4114 on the front circumferential side wall of the outer wall 41 when the bottom wall portion 413 is in the closed position. And when the bottom wall portion 413 is in the open position, the hook portion 4133 will be released from the front circumferential side wall of the outer wall 41.

The motor 8 is installed in a motor installation chamber 16 separated from and at the rear side of the cyclone chamber 42. The motor 8 is simultaneously in transmission connection with the bottom wall portion 413, the dust pushing portion 61 and the surface cleaning body 7 to realize the driving actions of the three. By starting the motor 8, the interior of the cyclone chamber 42 and the dust collecting chamber 43 can be cleaned. The outer contoured surface of the main body 1 is provided with a control (not shown) which triggers the operation of the motor 8, and which is preferably mounted adjacent the handle portion 12 so that it can be operated by a user using the thumb or index finger of the hand holding the handle portion 12.

As shown in fig. 8, transmission mechanisms including a gear 81, a first rack 82, a second rack 83, a link 84 having a sliding groove 841 at the rear, a cover 44 and a cover 45 are provided between the motor 8 and the bottom wall portion 413, the dust pushing portion 61 and the surface cleaning body 7. A rod 85 is integrally provided at the rear of the second rack 83, and a pair of rods 86 extending in a direction parallel to the center line X are provided at both ends of the rod 85. In this example, the second rack 83, the lever 85, and the lever 86 are integrally formed as an integral component. The lever 86 has a pair of projections 861, and the moving member 87 is provided on the front side of the projections 861. A push rod 88 is provided on the front side of the moving member 87.

As shown in fig. 9 to 10, the gear 81 is fixed to the output shaft of the motor 8, the first rack 82 and the second rack 83 are engaged with the left and right teeth of the gear 81, respectively, the front portion of the first rack 82 is slidably mounted in the sliding groove 841 at the rear portion of the link 84 by a pin 822, and the front portion of the link 84 and the second connection end 4322 are hinged together by a second pivot 435. The first rack 82 and the link 84 are located outside the outer wall 41 and are shielded by a cover 44 disposed outside the outer wall 41. The front part of the second rack 83 is located in the exhaust passage 54 inside the filter screen 5 and fixed with the dust pushing part 61 by the convex pillar 613. The tip end of the rod 86 is fixed to the annular base 71 of the surface cleaning body 7. The forward end of rod 88 is adjacent to a protrusion 4114 on outer wall 41. The push rod 88 is located outside the outer wall 41 and has a cover 45 disposed outside the outer wall 41. The cover 44 and the cover 45 are on opposite sides of the circumferential side wall portion of the outer wall 41, respectively.

In this embodiment, the sliding groove 841 enables the first rack 82 to perform a section of idle stroke relative to the connecting rod 84, the section of idle stroke enables the dust pushing portion 61 and the surface cleaning body 7 to move in advance during the movement of the bottom wall portion 413, the dust pushing portion 61 and the surface cleaning body 7, after a section of idle stroke, for example, half of the total stroke, the push rod 88 moves again, and finally the push rod 84 moves again, so that when the dust pushing portion 61 and the surface cleaning body 7 move to the maximum stroke, the bottom wall portion 413 just completes the switching from the closed position to the open position. During the resetting of these components, the bottom wall portion 413, the dust pushing portion 61 and the surface cleaning body 7 are moved in the reverse order.

In other embodiments, a transmission manner different from the above-described transmission mechanism structure may be adopted as long as the movement of the bottom wall portion 413, the dust pushing portion 61, and the surface cleaning body 7 can be triggered.

Continuing with fig. 1, the main body 1 is provided with an upstream motor filter 9 located upstream of the suction motor 3, downstream of the cyclonic separation chamber 42. The motor upstream filter 9 can re-filter the air flowing out from the opening of the filter screen 5, and the re-filtered intake air is sucked into the suction motor 3.

As shown in fig. 11, in order to facilitate the removal and installation of the upstream filter 9 of the motor, the top of the main body 1 is provided with a slot 17 between the rear circumferential side wall 412 of the outer wall 41 and the motor housing 115, and the mouth of the slot 17 extends to the outer contour surface of the top of the main body 1. In this example, the slot 17 is vertically opposed to the motor installation chamber 16, that is, the slot 17 is located outside the motor installation chamber 16. The upstream motor filter 9 is configured to be removably fitted into the slot 17. The insertion direction of the upstream filter 9 of the motor in this example is the direction perpendicular to the center line X, i.e., from top to bottom.

As shown in fig. 8, 11 and 12, the upstream filter 9 of the motor includes a filter element 91 (e.g., a hepa filter, a filter sponge, etc.) and a support 92 for mounting the filter element 91 in the insertion groove 17. The support body 92 internally defines a cartridge installation chamber in which the cartridge 91 is housed when the upstream motor filter 9 is installed in the slot 17. The support body 92 further comprises a cover 922, the cover 922 closing the mouth of the slot 17 and being secured to the top part of the main body 1 when the filter 9 is mounted in the slot 17 upstream of the motor, the cover 922 also forming part of the outer contour of the vacuum cleaner. In order to facilitate the user to assemble the upstream filter 9 of the motor, a locking mechanism 93 capable of unlocking is provided between the support body 92 and the main body 1. When the filter cartridge 91 in the upstream motor filter 9 needs to be cleaned, the locking mechanism 93 is unlocked and the upstream motor filter 9 is pulled out from the slot 17. In this example, in order to make the structure compact, one of the parts of the transmission mechanism, the moving member 87, is mounted on the supporting body 92 and located inside the outer cover 922, and the moving member 87 can move up and down relative to the supporting body 92.

In other embodiments, the filter element may be a single piece, i.e. the filter element is integrated with the support body, and the filter element is configured to be detachable from and installable in the slot.

As shown in fig. 13, when the user drives the motor 8 to rotate in the first direction by operating the control key, the first rack 82 moves backward with the rotation of the gear 81, and the front portion of the first rack 82 slides in the slide groove 841 while the link 84 does not move. Meanwhile, the second rack 83 moves forwards along with the rotation of the gear 81, the second rack 83 simultaneously drives the dust pushing part 61 and the surface cleaning body 7 to move forwards, the dust pushing part 61 compresses and solidifies the garbage in the dust collecting chamber 43 towards the bottom wall part 413 and simultaneously cleans the inner wall surface 4110 of the front circumferential side wall 411 of the outer wall 41, and the inner cleaning head 72 and the outer cleaning head 73 of the surface cleaning body 7 respectively clean the outer surface 511 of the filter screen 5 and the inner wall surface 4120 of the rear circumferential side wall 412 of the outer wall 41 by contacting the outer surface 50 of the filter screen 5 and the inner wall surface 4120 of the rear circumferential side wall 412 of the outer wall 41; at this time, in the moving process of the second rack 83, the moving member 87 will be also driven to move forward, the moving member 87 will then push the push rod 88 to move forward, the push rod 88 further realizes that the third end 41331 of the forward push hook 4133 is disengaged from the protrusion 4114, and the bottom wall portion 413 realizes to be unlocked; when the second rack 82 cannot slide in the sliding groove 841, the second rack 82 pulls the link 84 to move backward, and the ear 4132 of the bottom wall part 413 is triggered to rotate around the first pivot 4134 and the second pivot 4135, so that the bottom wall part 413 is switched from the closed position to the open position, and the garbage in the dust collecting chamber 43 is pushed out by the dust pushing part 61.

In contrast, when the user drives the motor 8 to rotate around the second direction opposite to the first direction by operating the control key, the first rack 82 will move forward along with the rotation of the gear 81 and push the link 84 to move forward, the forward movement of the link 84 will trigger the bottom wall portion 413 to rotate around the first pivot 4134 and the second pivot 4135 simultaneously and in the direction opposite to the aforementioned direction, along with the rotation of the bottom wall portion 413, the third connecting end 41331 of the hook 433 will rotate to the boss 4114 and be locked by the boss 4114, the third end 4331 will push the moving member 87 backward and further push the moving member 87 to reset by the third connecting end 41331, and the bottom wall portion 413 enters the closed position; at the same time, the second rack 83 will bring the dust pushing portion 61 and the surface cleaning body 7 back.

In other embodiments, it is also possible to arrange no surface cleaning bodies in the cyclonic separating chamber, or to arrange surface cleaning bodies with only inner cleaning heads or only outer cleaning heads. The bottom wall portion may also be manually opened and/or manually closed. The dust pushing part can be moved manually by an external user. The ash pushing portion may be configured in other ways that facilitate pushing the waste towards the bottom wall portion.

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 hand-held vacuum cleaner, comprising:

the main machine body (1) comprises a handle part (12), a dust-containing air inlet (14), a clean air outlet and an air flow path extending between the dust-containing air inlet (14) and the clean air outlet, wherein a suction motor (3) and a rechargeable battery pack (2) are installed on the main machine body (1);

the cyclone separation assembly (4) comprises an outer wall (41) fixedly arranged with the main body (1), a cyclone separation chamber (42) and a dust collection chamber (43) formed inside the outer wall (41), wherein the cyclone separation chamber (42) is positioned on the airflow path;

the filter screen (5), the said filter screen (5) is fixed and set up in the said cyclone chamber (42), the air can flow out from the said cyclone chamber (42) through passing the said filter screen (5);

a motor upstream filter (9) located downstream of the cyclonic separation assembly (4), the main body (1) having a socket (17) formed therein, the socket (17) extending over a portion of the outer peripheral surface of the main body (1), the motor upstream filter (9) being configured to removably fit within the socket (17).

2. The hand-held vacuum cleaner according to claim 1, wherein the upstream motor filter (9) comprises a filter cartridge (91) and a support body (92) for positioning the filter cartridge (91), the support body (92) defining a filter cartridge mounting cavity (921).

3. The hand-held vacuum cleaner according to claim 2, wherein the support body (92) comprises an outer cover (922), the outer cover (922) forming part of the outer contoured surface of the hand-held vacuum cleaner when the upstream motor filter (9) is mounted in the socket (17).

4. The hand-held vacuum cleaner according to claim 1, characterized in that an unlockable locking mechanism (93) is provided between the supporting body (92) and the main body (1).

5. The hand-held vacuum cleaner according to claim 1, wherein the main body (1) has a motor housing (15) for mounting the suction motor (3), and the slot (17) is located between the motor housing (15) and the outer wall (41).

6. The hand-held vacuum cleaner according to claim 1, wherein the outer wall (41) comprises a bottom wall portion (413), the outer wall (41) having a centre line through the bottom wall portion (413), the upstream motor filter (9) being insertable into the slot (17) in a direction perpendicular to the centre line.

7. A hand-held vacuum cleaner according to claim 1, wherein the cyclonic separating chamber (42) is provided with surface cleaning bodies (7), the surface cleaning bodies (7) being driven by a motor (8) to effect movement at least along the outer surface (50) of the filter screen (5).

8. The hand-held vacuum cleaner according to claim 7, wherein the main body (1) comprises a motor mounting chamber (16), the motor (8) being mounted in the motor mounting chamber (16), the motor mounting chamber (16) being located inside the slot (17).

9. The hand-held vacuum cleaner according to claim 7, wherein the main body (1) is provided with a control key capable of triggering the operation of the motor (8).

10. The hand-held vacuum cleaner of claim 9, wherein the control is mounted adjacent the handle portion (12) such that a user may operate the control with a palm thumb or forefinger holding the handle portion (12).