CN109953684B

CN109953684B - Hand-held type cleaning device

Info

Publication number: CN109953684B
Application number: CN201810759421.0A
Authority: CN
Inventors: 王旭宁
Original assignee: Sharkninja Hong Kong Co Ltd
Current assignee: Sharkninja Hong Kong Co Ltd
Priority date: 2018-07-11
Filing date: 2018-07-11
Publication date: 2021-11-30
Anticipated expiration: 2038-07-11
Also published as: CN109953684A

Abstract

The invention provides a handheld cleaning device which comprises an airflow inlet, a dust-air separation unit and an airflow generation unit, wherein the dust-air separation unit comprises a cyclone separation part, the cyclone separation part is provided with a plurality of cyclone separators, and the outer wall part area of each cyclone separator is provided with a flexible supporting piece. The vibration generated by the cyclone separator mainly used for separating dirty air in the cleaning device can be effectively reduced, meanwhile, the matching of the cyclone separator and the air tightness among various cavities and channels for separating and conveying dirty air and clean air can be guaranteed, the use experience of a user is improved, and the stability of a product is ensured.

Description

Hand-held type cleaning device

Technical Field

The invention relates to a handheld cleaning device, and belongs to the field of dust collectors.

Background

At present, various types of cleaning devices are commonly used in daily life, and common cleaning devices in the market, such as handheld dust collectors, are more and more familiar to consumers, and due to the advantages of portability and good controllability, the cleaning devices become the mainstream choice for consumers when selecting household dust collectors.

The handheld dust collector generally adopts a cyclone separator (called a cyclone separator for short) to separate and screen out impurities and dust particles in dirty air in a cyclone separation mode; an airflow generating unit such as an electric fan is adopted to provide negative pressure as a power unit for driving dirty air to flow; then auxiliary units such as a dirty air inlet pipeline, a motor front filtering unit, an energy supply unit such as an energy storage battery, a motor rear filtering unit, a connecting structure for communicating or connecting all the units, a handle for providing a holding structure and the like are added.

In order to pursue higher separation efficiency and improve cleaning effect, the product structure is often improved from two aspects, namely, on one hand, the working power of the airflow generating unit is improved, and further, the airflow speed is improved, so that the impurities and dust particles in the dirty air are driven to be finally accommodated in a desired dust collecting bin or dust collecting cover along the inner wall of the cyclone separator in a spiral manner by larger centrifugal force; on the other hand, the structure or arrangement mode of the cyclone separators is changed, so that impurities and dust in dirty air are more easily separated and collected, for example, in some products, the cyclone separators which are communicated in parallel and have smaller volume are adopted, the dirty air is divided into the cyclone separators in parallel to be separated, although the air volume of dirty air flowing in the cyclone separators is reduced, the dirty air can obtain higher linear velocity due to the reduction of the volume of the cyclone separators, the centrifugal force can also be increased, and the separation effect is improved; and, in order to facilitate the collection, the cyclone separator with small volume is arranged to have a truncated cone-shaped structure, and the ash outlet is arranged at one end of the truncated cone-shaped contraction, so as to drive the impurities and dust in the dirty air to move to the end of the contraction along a spiral track, and due to the contraction of the radial dimension, the linear velocity of the cyclone separator is gradually increased, and finally the impurities and dust in the dirty air are ejected from the ash outlet at a very high velocity.

Indeed, a relatively ideal cleaning effect can be obtained by the design concept, but the handheld cleaning device is generally limited by increasing the power of the airflow generating unit and inevitably increasing the volume and weight of the airflow generating unit due to pursuit of convenience, and in order to ensure a certain cruising ability, the energy supply unit, such as the specification of an energy storage battery, needs to be correspondingly increased, so that the overall occupied space and weight of the device are increased. The above-described detachers also have disadvantages, and most importantly, they generate large vibration and noise, which will affect the use experience and stability of the device if no proper measures are taken.

The device disclosed in chinese patent application CN 105030148A forms a structure supported by pressing against each other by grouping and arranging the cyclone devices in two layers, and is provided with a cyclone device support structure to support the lower part of each cyclone device, so as to form a support for keeping the cyclone devices stable and reducing the vibration caused by the air flow impact. However, the above-mentioned support structure does not provide a sufficiently satisfactory stable support effect, and in particular, the structure constituting the above-mentioned support is a spinner, and the support structures of the spinner may come into frictional contact with each other due to the amplitude of the vibration.

Therefore, the handheld cleaning device provided by the prior art still has a need to be improved for reducing the vibration generated by the airflow impact in the process of cleaning and purifying the dirty air by the cyclone separation of the cyclone separator.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a handheld cleaning device which can effectively reduce the vibration generated by a cyclone separator mainly used for separating dirty air in the cleaning device, and can ensure the air tightness among various cavities and channels which are matched with the cyclone separator to realize cyclone separation and convey the dirty air and clean air, thereby improving the use experience of users and ensuring the stability of products.

The invention adopts the following technical scheme to realize the purpose:

the utility model provides a hand-held type cleaning device, includes air current entry, dirt gas separation unit, air current generating unit and battery cell, dirt gas separation unit includes whirlwind separation portion, whirlwind separation portion is equipped with a plurality of ware of separating soon, wherein, it is equipped with flexible support piece to revolve a ware outer wall part region.

In a preferred embodiment, at least the flexible support supporting adjacent detachers is integrally formed.

In a preferred embodiment, the cyclone comprises a first cyclone group and a second cyclone group which are arranged in parallel around an axis, wherein the ash outlet of the first cyclone group is positioned in a first height area, the ash outlet of the second cyclone group is positioned in a second height area, and the second height area is positioned at the upper part of the first height area; the flexible support comprises a first support group for supporting the first cyclone group and a second support group for supporting the second cyclone group, and the second support group is higher than the first support group in height; the flexible supporting piece comprises a through hole for penetrating or wrapping the ash outlet of the cyclone separator and a side wall for supporting the outer wall of the cyclone separator.

In a preferred embodiment, the device further comprises a bracket for fixing the flexible support, and at least partial areas of the side walls of the flexible support are fixedly connected with the bracket.

In a preferred embodiment, every two flexible supports of the first support group and one flexible support of the second support group form a small group, and the flexible supports of the small groups are integrally formed.

In a preferred embodiment, the dust collector further comprises a dust collection cover for collecting dust discharged from the dust outlet of each cyclone, the upper end of the dust collection cover is combined with the bracket, a first sealing member is arranged at the combination part of the bracket and the dust collection cover, and the first sealing member and the flexible support member are integrally formed.

In a preferred embodiment, the dust-gas separation unit is provided with a motor front filter chamber, the lower part of the motor front filter chamber is formed by a motor front filter cover, the motor front filter cover is at least partially arranged inside the dust collection cover, the upper end of the motor front filter cover is combined with the upper part of the motor front filter chamber, the combining part is provided with a second sealing piece, and the second sealing piece and the flexible support piece are integrally formed.

In a preferred embodiment, the flexible support, the first sealing member and the second sealing member are molded and/or cast and/or injection molded in a low temperature curing manner after the dust cage and the bracket are formed.

In a preferred embodiment, a separating bin surrounding the dust cage is further included, said separating bin having an upper opening in the same height area as the upper end of the dust cage.

In a preferred embodiment, the separation chamber has a lower opening and a lower end cover closing the lower opening, and the lower end of the dust collection cover is flexibly connected with the lower end cover.

Through the implementation mode of the device, the overall shock absorption performance and the noise reduction performance of the device are improved in a flexible supporting mode, meanwhile, the air tightness between different functional cavities is guaranteed to be achieved to a certain extent, the structure is compact, the forming process and the assembling process are simplified, and meanwhile, the reliability of the equipment connecting structure is also improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is an exploded view of a dust separating unit of a hand-held cleaning device according to an embodiment of the present invention;

FIG. 2 is a schematic view of the support structure of the spin-off unit of the hand-held cleaning device and the filter housing integrated with the motor according to an embodiment of the present invention;

FIG. 3 is a schematic view of a dust cage of a hand-held cleaning device according to an embodiment of the present invention;

FIG. 4 is a schematic view of a cylindrical cover of a hand-held cleaning device according to an embodiment of the present invention;

FIG. 5 is a schematic view of a lip member disposed in cooperation with a cylindrical cap in a hand-held cleaning device according to one embodiment of the present invention;

FIG. 6 is a schematic diagram of the arrangement of the upper portion of the front filter chamber of the motor in conjunction with the second cyclone set in the hand-held cleaning device described in one embodiment of the present invention;

FIG. 7 is a schematic view of the construction of the separation chamber of the hand-held cleaning appliance described in one embodiment of the invention showing the sealing surfaces in sealing contact with the cyclone section and the cylindrical shroud;

FIG. 8 is a schematic view of a portion of the cyclonic separating section of a hand-held cleaning apparatus shown in an embodiment of the invention in combination with a cylindrical shroud, showing sealing surfaces in sealing contact with the separation chamber;

FIG. 9 is a schematic view of a buffer chamber of a hand-held cleaning device according to an embodiment of the present invention;

FIG. 10 is a schematic view of the top wall of the buffer chamber of the hand-held cleaning device according to one embodiment of the present invention;

FIG. 11 is a schematic view showing the combination of the cylindrical cover and the lip member in the hand-held cleaning device according to the embodiment of the present invention;

fig. 12 is a schematic view illustrating an overall structure of a handheld cleaning device according to an embodiment of the invention.

Detailed Description

In order to more clearly explain the overall concept of the invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

Of course, in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Moreover, the drawings are only used for illustrating the shapes, structures, position relations and the like of the structures, and the achievable shapes, structures and position relations of the devices in the technical schemes described in the embodiments of the invention do not completely follow the scale relations or the structure change widths and the like illustrated in the drawings.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The air flow path is arranged in the handheld cleaning device, the cross section and the direction of the air flow path are changed greatly, in order to ensure the cleaning effect, the air flow needs to maintain enough linear velocity, the highly flowing air flow changes direction continuously and changes flow velocity continuously along with the change of the cross section of the air flow path, and therefore, the generated impact and friction can cause the wall of the limited air flow path, the cavities and the components of the wall for providing the limited air flow path to vibrate, and therefore, the relative displacement between the cavities and the components can be caused, and larger noise can be generated, so that the vibration needs to be reduced and controlled.

In the hand-held cleaning device, the cyclone separation part for removing impurities and dust in dirty air in a cyclone separation mode is most prone to vibration, particularly the cyclone separation part is provided with a plurality of parallelly communicated cyclone separators with small volume, and each cyclone separator comprises the cyclone separator which is inevitably subjected to large vibration, so that the vibration of the cyclone separator is relieved and buffered mainly through a vibration reduction structure which is reasonably arranged.

The handheld cleaning device mainly comprises an airflow inlet, a dust-air separation unit and an airflow generation unit, wherein dirty air is driven by the airflow generation unit to enter the dust generator unit from the airflow inlet to be subjected to dust-air separation cleaning treatment, and then enters the airflow generation unit after the treatment, and is discharged from an air outlet of the airflow generation unit to return to the outside in a clean air state, so that the purpose of cleaning is achieved.

Referring to fig. 12, an overall structure of a handheld cleaning device implemented in an embodiment is illustrated, where the left side of the device is an airflow inlet, the right side of the device is a main machine portion provided with an airflow generating unit, and the middle of the device is a dust-air separating unit. The "main unit" refers to a set of components on which the driving function of the handheld cleaning device is mounted or integrated, and as shown in the figure, the main unit further includes a handle mounted on the main unit or held at an extension of the main unit, and an energy supply unit mounted on the main unit for driving the airflow generation unit to generate negative pressure airflow. Of course, the main frame further includes a support frame or a support housing for supporting or accommodating the above-mentioned various components, and for mounting the extended related components.

In addition, not shown in the drawings, the handheld cleaning device often further includes some auxiliary components, for example, the above-mentioned handheld cleaning device can directly clean the surface to be cleaned through the gas inlet, and can also be externally connected with auxiliary components such as a connecting pipe, a hose and a cleaning suction head which are arbitrarily connected with the gas inlet to form an extension, and the technical improvements provided by the embodiments of the present invention do not concern or relate to the externally connected auxiliary components connected with the gas inlet, and do not make technical improvements on the gas flow generating unit itself.

When the handheld cleaning device is used, a user can lift the handheld cleaning device by holding the handle, then the air inlet faces to a position to be cleaned, then the air flow generating unit can be started, negative pressure can be generated inside the dust-air separating unit after the air flow generating device is started, external dirty air can be sucked into the dust-air separating unit through the air inlet at the moment and is separated in a cyclone separation mode, and impurities and dust in the dirty air are separated in an expected mode and collected in the set chamber. Through the process, the dust collection and cleaning operation of the handheld cleaning device is realized.

In the main technical improvement of the present invention, referring to fig. 1, the dust-gas separating unit is illustrated in an embodiment by referring to fig. 1, and these components are assembled along the direction indicated by the lines in the figure to form the dust-gas separating unit, and the shape of the assembled dust-gas separating unit can refer to the structural shape of the middle part of the handheld cleaning device illustrated in fig. 12.

In fig. 1, the dust and gas separating unit includes a cyclone separating portion 600, the cyclone separating portion 600 is provided with a plurality of cyclones with smaller volume and connected in parallel, a partial structure shown in fig. 6 and separated from the cyclone separating portion 600 is shown, the general shape and arrangement of the plurality of cyclones 6101 are shown in the figure, a contraction end (an upward end of the cyclones in the figure) of the cyclones 6101 is an ash outlet, and the other end is a clean air outlet and a tangential air inlet (not shown), in conjunction with fig. 1, a flexible support member is provided in an outer wall partial region of each cyclone 6101, specifically, after the cyclone separating portion 600 is assembled with the front motor filter housing 500, each cyclone will be supported by a flexible support member attached to the front motor filter housing 500, and referring to fig. 2, in the support structure 800, the flexible support member 810 is provided corresponding to a position of the cyclone.

The flexible supporting members 810 are arranged on part of the side wall of each cyclone 6101 in a targeted manner, so that the flexible supporting of the cyclone is realized, and for the handheld cleaning device adopting a plurality of layers of cyclones arranged in parallel for improving the cyclone separation effect, the flexible supporting members for realizing the buffering and damping functions are arranged on the outer wall of the cyclone, so that the flexible supporting members not only have the function of reducing the vibration amplitude of the cyclone and keeping the structure stable, but also can reduce the noise caused by the air flow impact. And moreover, flexible supporting pieces are arranged between the rotating-off devices and the supporting structure in a filling mode, so that a buffering effect is exerted among the functional units, rigid friction or contact is avoided, and the firmness and the stability of the functional units are improved.

In addition, the flexible supporting piece is arranged between the rotating-off devices in a filling mode, the assembling precision requirement is reduced, the allowable matching deviation among all the functional units is within a larger range, the rotating-off devices which are arranged in groups, in an inner layer and an outer layer are determined to have a relatively complex structure inside the cyclone separation part, the manufacturing difficulty and the assembling difficulty of each part are required to be reduced as much as possible, partial support is realized in a flexible mode, in the assembling process, the flexible part can be temporarily subjected to elastic deformation, the parts can be allowed to be structured together through a less-strict installation path, and then the elastically-deformed part is subjected to rebound filling, so that stable positioning can be realized, which is an advantage that a rigid structure does not have.

In addition, in a preferred embodiment, the part of the side wall is located close to the ash outlet of the cyclone, specifically, the distance between the position where the flexible support is contacted and the ash outlet is not more than 50mm, the support position is limited at the position, the position near the ash outlet of the cyclone is the highest in impact strength of the airflow due to the conical structure of the cyclone, the transmission of the impact is avoided through the buffering of the flexible support structure, the resistance to the vibration of the cyclone caused by the impact of the airflow is also formed through the flexible support, the amplitude of the vibration is reduced, and the noise generated by the vibration is reduced. In addition, flexible supports differ from rigid supports, which limit the vibration of the swing-out device, allowing the force of the impact to be transmitted to the support structure, requiring a greater rigidity of the support structure and a correspondingly greater size, which otherwise might be difficult to maintain in a stable manner. In addition, the cyclone has the outer wall of the revolving body, and under the condition that some need keep the gas tightness, it is difficult to set up a sealing device, and sets up the flexible support structure to complete annular, then can have sealed effect simultaneously in the support. Therefore, the area for supporting the cyclone device by the flexible supporting structure is arranged at the position close to the ash outlet, so that the vibration generated by the cyclone device can be effectively buffered, the stability can be kept, and the air tightness of the device can be improved.

Referring to fig. 6 again, the flexible supporting members 810 supporting at least the adjacent detachers are integrally formed, the adjacent detachers are connected to form a modular structure by the flexible supporting structure 810, vibration of a part of the detachers can be offset by each other, and the flexible supporting members 810 have certain shapes, but are easy to deform due to flexibility. The figure shows that the flexible supporting elements for supporting three adjacent detachers are integrally formed, namely the flexible supporting element for supporting two detachers arranged at the outer layer and the flexible supporting element for supporting one detacher arranged at the inner layer. In other embodiments, the flexible supporting members supporting two or more than three adjacent detachers may be integrally formed, and the above-mentioned functions may also be performed, depending on the arrangement of the detachers.

As a preferred implementation of the above embodiment, correspondingly, the arrangement of all the cyclones is: the cyclone dust collector comprises a first cyclone group and a second cyclone group which are arranged in parallel around an axis, wherein an ash outlet of the first cyclone group is positioned in a first height area, an ash outlet of the second cyclone group is positioned in a second height area, and the second height area is positioned at the upper part of the first height area; and the flexible support correspondingly comprises a first support group for supporting the first cyclone group and a second support group for supporting the second cyclone group, and the second support group is higher than the first support group; referring to fig. 2, in the drawing, the flexible supporting members 810 are divided into two groups, wherein the upper five groups are the second supporting groups, the lower ten groups are the first supporting groups, and the flexible supporting members in each two adjacent first supporting groups are connected with the flexible supporting members in one second supporting group.

The embodiment illustrated in the drawings provides in particular the shape and arrangement of the flexible support structure, for each cyclone, the portion of the side wall of the ash outlet or close to the ash outlet is surrounded or surrounded by the flexible support, and a portion of the side wall of the flexible support is actually squeezed between a portion of adjacent cyclones, thereby providing both a cushioning and supporting function, in particular the side wall of the flexible support in the second support group, while supporting the cyclones in the first and second cyclone groups by flexible contact, increasing the compactness of the arrangement inside the apparatus.

As can be seen, each flexible support includes a through hole 860 for passing through or wrapping around the skimmer ash outlet, and a sidewall 870 for supporting the outer wall of the skimmer. This is an exemplary arrangement, the ash outlet through the through hole 860 primarily ensures air tightness, while the side wall 870 supporting the outer wall of the cyclone mainly plays a role in damping vibration. In the illustrated construction, the through holes 860 may be formed at an upper end of the side walls 870, the dust outlets may extend through the through holes 860, and the passages formed by the side walls may extend through the dust outlets, such that the airflow may impinge on the flexible side walls 870 when exiting from the dust outlets, thereby reducing the amplitude of the vibration and also reducing the noise. In other embodiments, the through hole may be formed at the lower end of the sidewall to enhance the reliability of the flexible support, or the through hole may be formed at the middle portion of the sidewall.

In addition, fig. 6 schematically illustrates the configuration and arrangement of the second cyclone group (upside down), each cyclone 6101 in the second cyclone group is connected and fixed by a frame, the first cyclone group includes a greater number of cyclones, each cyclone is also connected and fixed by a frame, in some embodiments, the frame in the first cyclone group forms a partial enclosure of the cyclone separation part, i.e. is directly exposed to the outside, and a partial outer wall of the cyclone of the second cyclone group also forms a partial enclosure of the cyclone separation part, i.e. is directly exposed to the outside.

In order to optimize the structure of the flexible supporting member and make it perform more effective buffering, vibration damping and supporting functions, referring to fig. 2, as a preferred implementation manner of the above embodiment, a bracket 840 for fixing the flexible supporting member 810 is further provided, as shown, at least a partial region of the side wall 870 of the flexible supporting member 810 is fixedly connected with the bracket 860. The support 860 is configured to have a greater stiffness than the flexible support 810, for example, the flexible support may be formed of thermoplastic elastomer, TPU, silicone rubber, natural rubber, or other low temperature cured elastomer, while the support is formed of a rigid plastic (e.g., ABS), and the support may be configured to have a strip-like structure, which provides both rigidity and elasticity.

More preferably, the flexible supporting member 810 is integrally connected to the bracket 840 by an adhesion or encapsulation process, the bracket 840 is fixedly connected to the front filter housing 500 of the motor or directly integrally formed (by a mold injection) with the outer wall of the front filter housing 500 of the motor, the bracket 840 is configured to be a skeleton-like structure, the supporting flexible supporting member 810 has a relatively stable shape, so that the through hole 860 formed by the flexible supporting member maintains a substantially determined shape, and the supporting flexible supporting member can automatically recover to the original shape after being deformed due to the shape of the supporting flexible supporting member. Moreover, the arrangement of the flexible support piece and the connecting piece can prevent the flexible support piece from being lost during assembly or maintenance and disassembly, and can also prevent the flexible support piece from contacting with other irrelevant interfaces as much as possible during the assembly or disassembly, thereby avoiding unexpected frictional contact and pollution and keeping the stability and cleanness of the flexible support piece.

As mentioned above, preferably, every two flexible supporting members of the first supporting group and one flexible supporting member of the second supporting group form a small group, and the flexible supporting members of each small group are integrally formed; in other possible embodiments, other combinations may be adopted, and one or more flexible supporting members in the first supporting group and one or more flexible supporting members in the second supporting group may form an integrally formed group, which is related to the arrangement of the rotating-separating devices to some extent.

Preferably, the flexible supports in each subset are not only integrally formed but also cooperate with the frame to form an airtight structure so that air flow can only pass between the subsets, as shown in fig. 2, thereby forming air flow passages 850 between adjacent subsets, the air flow passages 850 being configured to have substantially equal shapes and cross sections so that air flow can be divided evenly, and cooperate with the air flow passages 850 to flow in the air flow channels so that dirty air can enter the cyclones more evenly. In addition, the vibration generated by each cyclone is mutually transmitted by a part of the vibration through the flexible supporting piece by matching with the uniform and opposite arrangement of the circumferences of the cyclones, and the parts of the vibration are mutually offset in an opposite impact manner, so that the integral vibration amplitude is reduced.

In addition, referring to fig. 3, the embodiment of the present invention further provides a dust cage 400 for collecting dust discharged from the dust outlet of each cyclone, the dust cage 400 having a chamber 410 defined by the outer wall of the dust cage for collecting dust, an upper end 420 of which is correspondingly combined with the aforementioned bracket 840, referring to fig. 2, a first sealing member 820 is provided at the combining portion of the bracket 840 and the dust cage 400 (corresponding to the position and shape of the upper end 420), and the first sealing member 820 is integrally formed with the flexible support member 810, and the first sealing member 820 and the flexible support member 810 have the same material and substantially the same forming process, are integrally connected with the bracket and are reinforced by the rigidity of the bracket. Since there is also airflow inside the chamber 410 and the dust outlets of the cyclones eject dust at a high velocity, the airflow impact in the chamber 410 also causes vibration, which may be mainly noisy due to the relatively large size of the dust cage 400, and therefore, the addition of the flexible structure at the upper end 420 provides a cushioning effect and reduces noise. Further, the air tightness of the joint portion between the holder 840 and the dust cover 400 can be ensured. In addition, first sealing member 820 and flexible support member 810 integrated into one piece have constituted the support system, all attach to support 840, exert holistic cushioning effect, have shown in the figure, and the composition surface shape of combining the position is more complicated by the arrangement mode of cyclone, and the structure of integral type is favorable to guaranteeing more definite shape, when the equipment, can reduce the work degree of difficulty, and has concurrently and prevent losing, anti-pollution advantage.

Furthermore, as a common configuration of the handheld cleaning device, a pre-motor filter is often provided to protect the motor in the airflow generating unit, and in one embodiment, the dust-air separating unit is provided with a pre-motor filter chamber to accommodate the pre-motor filter core 700.

Referring to fig. 1, 2 and 6, in detail, the lower portion of the motor front filter chamber is formed by a motor front filter cover 500, the motor front filter cover 500 is at least partially disposed inside the dust collection cover 400, the upper end of the motor front filter cover and the upper portion 610 of the motor front filter chamber are combined with the lower end 6102 of the upper portion 610, a second sealing member 830 is disposed corresponding to the combination portion, and the second sealing member 830 and the flexible supporting member 810 are integrally formed. The second sealing member 830 is formed, constructed and operative as described above with reference to the first sealing member, and it is apparent that the integral structure is more advantageous for forming and assembling. In combination with the above embodiments, the flexible support 810, the first sealing member 820 and the second sealing member 830 can form an integrated buffer sealing structure, and the buffer sealing structure can function as a whole.

Furthermore, it can be seen that the outer wall 510 of the pre-motor filter housing 500 defines two chambers, one being a first chamber for accommodating the pre-motor filter core 700, the other being a second chamber communicated with the first chamber and serving as a filtered air passage, and correspondingly, the upper portion 610 also defines two chambers, one being a third chamber 6104 defined by the pre-motor filter outer wall 6103 and accommodating the pre-motor filter core 700 together with the first chamber, and the other being a fourth chamber 6106 defined by the air outlet passage outer wall 6105 and serving as a filtered air passage together with the second chamber, and directly communicating with the air outlet 6107 as shown in the fourth chamber, and air will flow from the air outlet 6107 into the air inlet (not shown) of the air flow generating unit.

As described in the foregoing embodiments, in order to exert the buffering, vibration damping and sealing functions, the flexible supporting member needs to have good ductility and elasticity, materials suitable for the flexible supporting member have been described above, and in order to reliably combine the flexible supporting member with the bracket and also simplify the molding process, the flexible supporting member, the first sealing member and the second sealing member are preferably molded and/or die-cast and/or injection-molded in a low-temperature curing manner after the dust hood and the bracket are molded, a desired shape is directly obtained by secondary molding, the molding of the flexible supporting structure and the combination with the bracket as a framework and the outside of the dust hood are realized through one process, and compared with the connection after the respective molding, the connection is more convenient, the requirement for assembling precision is also reduced, and the difficulty of assembly is reduced. Meanwhile, the requirements on the shape and the size precision of the flexible supporting structure are relatively low, the dust collection cover and the bracket can be allowed to select larger tolerance in the forming process, and the manufacturing cost of the die is reduced. Of course, in another embodiment, the flexible supporting member, the first sealing member and the second sealing member may be integrally formed by molding, and then connected to the dust collection cover and the bracket by, for example, bonding, but such an implementation may require more process equipment.

In addition, the supporting structure 800 is formed in the front filter cover of the motor instead of being directly formed in the dust collection cover for receiving the dust outlet of the cyclone separator, so that the forming difficulty of each part can be simplified and uniformized, and compared with the method that the supporting structure is formed in the upper opening of the dust collection cover, the supporting structure is arranged in the front filter cover of the motor and then is combined with the upper end of the dust collection cover through assembly, or the supporting structure is manufactured independently and then is combined with the dust collection cover and the front filter cover of the motor, the forming complexity and the die development and manufacturing cost of the dust collection cover can be reduced.

Furthermore, the two sets of cyclones are arranged about an axis and the dust outlet of each cyclone injects a dust laden air stream into the dust hood at a small acute angle to the downward direction of the axis, thereby causing an air stream impact against the dust hood, which also generates vibrations and vibration-induced noise.

In a preferred embodiment, referring to fig. 1, 3 and 7, in the hand-held cleaning device, a separation chamber 100 surrounding a dust collection cover has an upper opening located at the same height as the upper end of the dust collection cover, and when assembled, the cylindrical cover 200, the lip member 300, the dust collection cover 400, the motor front filter cover 500, the cyclone 600, and the motor front filter core 700 are assembled into a single body and then are loaded into the separation chamber 100 from the upper opening. The separating bin 100 further has a lower opening for removing the dirt primarily separated in the separating bin, and a lower end cover for closing the lower opening, and after the parts formed as a whole are inserted into the separating bin, the lower end 460 of the dust collecting cover 400 is flexibly connected with the lower end cover through a flexible connecting end 470. As a preferred implementation, the flexible connecting end 470 has an opening, and the lower end cover forms a boss corresponding to and closing the opening, and closes the fluid communication between the lower end opening of the dust collection cover 400 and the outside or the interior of the separation chamber while being flexibly connected. Therefore, another flexible fixed supporting position is formed at the lower end of the dust collection cover 400, the flexible supporting part is matched to play a role of buffering and damping, a structure similar to a cantilever at a relative vibration generating position is avoided, the integral vibration amplitude is reduced, and adverse contact and noise generated by the vibration are eliminated.

Referring again to fig. 1, in the cyclone separation structure with a plurality of parallel cyclone separators disposed in the cyclone separation portion 600, it is necessary to arrange and homogenize the airflow before the airflow enters the cyclone separators, and to reduce the impact of the airflow with the inner wall of the airflow channel before the airflow enters the cyclone separators during the process, so as to avoid that some dust particles carried by the dirty air are separated before entering the cyclone separators and attached or collected at a position outside the dust collection cover, which is obviously not expected by the manufacturers and users. In addition, because the cylindrical cover has the function of primary filtration, the filtered air flow also needs to flow into the cyclone separator through a channel with good air tightness.

In addition, the cylindrical cover provides a passage for air flow, which is also a necessary passage for air flow before entering the cyclone separator, the side wall of the cylindrical cover is inevitably impacted by the air flow, and the side wall of the cylindrical cover also needs to keep a stable shape, namely has considerable rigidity, and the rigidity is required to be increased, so that the cylindrical cover is often designed from a structure, such as the thickness of the cylindrical cover is increased or a reinforcing rib structure for supporting is added; or the handheld cleaning device is designed from the aspect of materials, for example, the handheld cleaning device is made of materials with strong rigidity, obviously, the design of the two aspects conflicts with the pursuit of lightweight of the handheld cleaning device, the handheld cleaning device mainly realizes the cleaning treatment of dirty air through driving airflow, the change of the flow field environment is likely to bring unpredictable influence, the random addition of reinforcing ribs is obviously inappropriate, and the addition of the reinforcing ribs can also form parts easy to attach or deposit dust.

To provide a buffer chamber that meets the aforementioned needs, the structures of the parts defining the buffer chamber need to be reasonably optimized and defined, so in another embodiment, in combination with fig. 12, 7 and 1, the handheld cleaning device is also configured to include an airflow inlet 110, a dust-air separation unit and an airflow generating unit, and the airflow generating unit is configured to drive dirty air to flow through the dust-air separation unit via the airflow inlet for cleaning and then to be discharged via the exhaust port of the airflow generating unit.

Wherein, according to fig. 1, the dust-gas separation unit comprises: a separation bin 100 for performing a first-stage separation of dirty air, a cyclone separation part 600 including a plurality of cyclones for performing a second-stage separation of dirty air; a cylindrical cover 200 surrounded by the separation bin; a dust collection cover 400 surrounded by the cylindrical cover 200;

with reference to fig. 9, the dirty air enters the inlets of the plurality of cyclones via the annular buffer chamber S after the primary separation; as illustrated, the outer annular wall S4 of the buffer chamber S is defined by the side wall of the cylindrical cage 200, specifically the inner side wall of the cylindrical cage, which is perforated with holes, e.g., uniformly distributed filter holes, through which the air flow in the separation chamber enters the buffer chamber S, and further, the lower region of the inner annular wall S2 of the buffer chamber S is defined by the outer wall of the dust cage 400, the lower part of the cylindrical cage 200 is provided with a lip 300 turned inward relative thereto, and the bottom wall of the buffer chamber S is defined by the upper surface of the lip 300.

The inner annular wall of the buffer chamber is limited by the outer wall of the dust collection cover in an integral structure, so that the combination part of the inner annular wall and other parts is reduced, the smooth contact between the airflow and the inner annular wall of the buffer chamber can be realized, and the possibility of dust attaching to the inner annular wall of the buffer chamber is reduced. The inward-folded lip piece simultaneously achieves the purposes of rigid reinforcement of the cylindrical cover and sealing of the buffer chamber, reduces the complexity of the overall structure, is beneficial to achieving light weight of the device, reduces a protruding or recessed structure relative to the whole in a modeling structure, reduces the complexity of a molding process, and also reduces the development cost of a mold for manufacturing.

In addition, according to the structure of the cyclone separation part in the cleaning device, the air outlets of the plurality of cyclone separators are communicated in parallel to a motor front filter chamber partially surrounded by the dust collection cover, and the dirty air is filtered and separated or subjected to three-stage separation in the motor front filter chamber through a motor front filter core body; the gas after the three-stage separation enters the gas flow generation unit through the gas outlet channel; the partial inner ring wall of the buffer chamber is specifically the upper area of the inner ring wall, and is defined by the outer wall of the front filter chamber of the motor and the outer wall of the air outlet channel, and the partial top wall is defined by the partial outer walls of the plurality of cyclone devices, referring to fig. 10, the gray area in the figure is the partial inner ring wall and the top wall of the buffer chamber.

In addition, referring to the foregoing embodiment, the outer wall of the motor front filtering chamber, specifically, the outer wall of the motor front filtering cover serving as the lower portion of the motor front filtering chamber, is formed with a supporting structure for supporting the cyclone separator, and the sub-units and the relationship included therein may refer to the foregoing embodiment, which is not described herein again. It should be noted that, referring to fig. 2 and 3, a lower passage 430 is formed at the upper end of the dust cage 400, for example, an outer wall of the upper end of the dust cage 400 is formed by being inwardly contracted to form a manifold structure for uniformly distributing the air flow in the buffer chamber as the lower passage.

The bracket 820 in the support structure 800 cooperates with the pre-motor filter housing 500 to form an upper channel 850, corresponding to the extension of the support structure 800 formed with the aforementioned manifold structure. When assembled, the upper channel 850 and the lower channel 430 are in abutting contact to form an airflow path that communicates between the lower and upper portions of the buffer chamber, the lower region of the inner annular wall being located at the lower portion of the buffer chamber and the lower region of the inner annular wall being located at the upper portion of the buffer chamber.

Referring to fig. 4 and 11, the sidewall of the cylindrical cap 200 includes an upper sidewall 210, a middle sidewall 230 and a lower sidewall 240, the hole is disposed in the middle sidewall 230, and the middle sidewall 230 and the lower sidewall 240 have a uniform or approximately uniform inner diameter. This provides a reliable sealing contact surface, and the middle and lower side walls are as free as possible from radial dimension edges, in order to avoid undesirable sealing effects due to misalignment of the sealing contact.

Referring to fig. 5 and 11, the lip 300 includes a first ring portion 340 that conforms to the inner surface of the lower sidewall 240 or the inner surfaces of the middle and

lower sidewalls

230, 240 simultaneously; a second ring part 330 extending upwards and inwards from the first ring part 340 and attached to the outer wall of the dust cage, and a guide surface 350 is formed at the joint of the first ring part 340 and the second ring part 330 for the sake of assembly manufacturability, wherein the guide surface 350 substantially forms a chamfer result or a fillet structure.

More specifically, the cylindrical cover 200 and/or the lip member 300 are both configured to have elasticity, and the first ring portion 340 forms an interference fit with the inner surface of the lower sidewall 240 or the inner surfaces of the middle sidewall 240 and the lower sidewall 230, and the assembly illustrated in fig. 11 is performed through a dimensional tolerance fit, so that the cumbersome connecting pieces are reduced, and the rigidity can be mutually enhanced after the two flexible bodies are connected into a whole, thereby obtaining a non-deformable assembly structure. To further enhance the reliability, it is conceivable to provide a smooth protrusion at the junction of the middle sidewall and the lower sidewall of the cylindrical cover, and to define the lip member so as to fit within a certain range with the inner surface of the lower sidewall of the cylindrical cover, for example, to fit with the inner surface of the lower sidewall while fitting with the inner surface of the sidewall in a part, or to fit with only the inner surface of the lower sidewall.

In addition, the second ring part has a limiting protrusion 320 according to the requirement of assembly, and the specific form of the protrusion 320 is, for example, a ring edge folded downwards again. The outer wall of the dust hood 400 is formed with a snap (not shown) corresponding to the protrusion, and the protrusion 320 and the snap can form a detachable snap connection. Therefore, the lip edge part is matched with the inner wall of the cylindrical cover to form sealing through surface contact, and is integrated with the dust collection cover through the buckling structure to form integrated sealing, and the closed airflow enters a channel below a gap between the cylindrical cover and the dust collection cover from the inside of the separation bin, namely the bottom wall of the buffer cavity channel is formed.

In addition, referring to fig. 3, the portion of the dust collection cover 400 located below the position where the second ring portion is attached is tapered inward. Specifically, the second ring portion fits against the middle section 440 of the dust cage 400, and the inwardly converging tapered section 450 connects the lower end 460 of the dust cage to the middle section 440. With reference to fig. 9, after the dust hood 400 and the lip member 300 are combined with the cylindrical hood 200, the reducing section 460 and the lower end 460 protrude from the lower opening of the cylindrical hood 200, and then extend into the lower portion of the inner chamber of the separation bin after the separation bin is assembled, and generally, the dirty air is first-stage separated in the separation bin, for example, the dirty air is separated into first-stage clean air and first-stage dirt, and the separated first-stage dirt is collected at the lower portion of the separation bin, that is, the dirt collection area, and the space of the dirt collection area is increased as much as possible on the premise that the lower end of the dust hood can be supported by the contraction middle discontinuity 440 and the lower end 460. And the lip edge part is matched to form a baffle structure for preventing dirt from rising, so that the upward dissipation of the primary dirt at the lower part of the separation bin can be prevented.

Referring again to fig. 1, after the dust-air separation unit is composed of the parts, the separation bin is used as a cavity for the primary separation and a support structure for the other parts, and a collection and accommodation area for accommodating the primarily separated dirt is provided, so that there is a need for frequent opening to remove the dirt.

In other embodiments, the sealing structure of the separation chamber is improved and optimized, and the core lies in that the static sealing and the dynamic sealing of the separation chamber and the outside are established through a cylindrical cover, and the assembly is communicated with the expected cavity or the outside under the working state relative to the separation chamber by configuring the sealing element of the separation chamber and the size structure of the cylindrical cover.

Specifically, referring to fig. 1, 7 and 8, the handheld cleaning device shown in the drawings comprises: an airflow inlet 110, a dust-air separation unit, and an airflow generating unit (not shown, refer to the description above with reference to fig. 12), the airflow generating unit being configured to drive dirty air to flow through the dust-air separation unit from the airflow inlet 110 for cleaning and then to be exhausted through an exhaust port of the airflow generating unit;

and the dust-gas separation unit comprises: the cyclone separation device comprises a separation bin 100 and a cyclone separation component partially positioned in the separation bin 100, and at least a cyclone separation part 600, a motor front filter cover 500 and a dust collection cover 400 which are combined with the cyclone separation component shown in figure 1;

the cyclonic separating assembly is movable relative to the separation bin 100 between a first position in which the cyclonic separating assembly is in contact with the separation bin and a second position in which the cyclonic separating assembly is out of contact with the separation bin;

a cylindrical shroud 200 surrounded by the separation bins 100 and connected to the cyclonic separation assembly, with reference to figure 5, the upper end 210 of the cylindrical shroud 200 having an inverted frusto-conical section 2101 and a radially constricted section 220;

still including locating cyclone separation subassembly and the last seal assembly of separating bin contact site, this last seal assembly is used for realizing the inside external sealed with of separating bin, and in this embodiment, this last seal assembly uniquely includes: a ring-shaped seal 140, for example, having a sheet-shaped cross section, disposed at the upper opening of the separation chamber 100; in the first position the ring seal 140 forms a seal with the outside inside the separation cartridge 100 at the outer wall of the frusto-conical section 2101 and/or the radially constricted section 220.

Therefore, multiple sealing is realized by the additionally arranged cylindrical cover and the sealing of the upper opening of the separation bin, and the sealing is reliable, so that the reliability of the integral sealing assembly is improved. The radial contraction section changes the radial dimension of the cylindrical cover, increases the rigidity of the cylindrical cover, and extends the contact sealing surface at the upper end to enhance the sealing reliability.

In addition, the upper seal assembly further comprises: the sealing structure 620 formed at the cyclone part 600 specifically includes:

an annular sealing surface 621 formed on the cyclone assembly, which annular sealing surface 621 forms a seal with the upper mouth edge 150 of the separation chamber 100 in the first position;

an annular sealing strip 622 is arranged on the cyclone separation assembly, and in the first position, the annular sealing strip 622 and the sealing groove 160 arranged at the upper opening of the separation bin form a seal between the inside of the separation bin 100 and the outside.

Further, as shown in fig. 4, the lower end (i.e., the lower sidewall 240) of the cylindrical cap 200 has an imperforate extension; in a second possible position, the annular seal 140 forms a seal between the interior of the separation bin 100 and the environment in the extended section when the cyclonic separating assembly and the cylindrical shroud are separated to some extent.

The cylindrical cap also includes a perforated section (i.e., medial sidewall 230) disposed in the middle thereof, which is connected to the frustoconical section 2101 by a radially constricted section 220.

The separation bin 100 includes a first-stage ash discharge port (at the lower end, not shown) for fluidly connecting the interior of the separation bin with the outside, and an openable lower end cover disposed at the first-stage ash discharge port;

the dust cage 400 surrounded by the cylindrical housing 200 in the cyclonic separating apparatus comprises a secondary dust discharge opening which fluidly connects the interior of the dust cage 400 with the interior of the separation chamber 100 and/or the environment, referred to as the flexible connection end 470 at the lower end in fig. 3.

The working mode of the ash discharge port is as follows: in the first position, the dust-collecting cover 400 is partially or wholly arranged in the separation chamber 100 and is sealed by the flexible connecting end 470, so that the separation chamber 100 is in fluid communication with the outside only through the airflow inlet 110; the lower end cover is closed and simultaneously seals the first-stage ash discharge port and the second-stage ash discharge port;

in the second position, the dust collection cover 400 is partially separated from the separation chamber 100, and the interior of the dust collection cover 400 is communicated with the interior of the separation chamber 100 through the secondary dust discharge port.

Therefore, the openings of the dust hood and the separation bin can be simultaneously closed by the lower end cover, and the dust hood can be firstly communicated with the separation bin when the lower end cover closes the separation bin; specifically, two relative positions are limited, firstly, the dirt separated in the second stage enters the lower part of the separation bin, then the lower end cover is opened, and the dirt is discharged together, so that the fine dust in the dust collection cover can be discharged for a longer time, and the dust in the dust collection cover can be fully discharged.

In addition, optionally, the cyclone separating assembly also has a third position relative to the separating bin, and in the third position, the dust collection cover drives a driving connecting piece (not shown) to open the lower end cover through the communicating structure, so that the interior of the separating bin is communicated with the outside through the primary dust outlet.

In addition, the gap (which can be understood as the buffer chamber in the previous embodiment) formed between the cylindrical cover 200 and the dust collection cover 400 also needs to be sealed from the interior of the separation chamber, in the following form: the lower end 240 of the cylindrical housing 400 is provided with an inwardly turned 300 lip member, the lip member 300 being in sealing contact with the outer wall of the dust cage 400. Set up lip edge spare through installing the mouth again, cooperation tube-shape cover realizes dynamic seal, avoids switching position in-process again, has the dust to escape to the top from the below, does not pass through abundant cleanness, causes external pollution.

The structure and other features of the lip member can be referred to the previous embodiments, in particular, in this embodiment, the lower end 240 of the cylindrical cover 200 is a structure allowing elastic deformation, and the lip member 300 is also a structure allowing elastic deformation, and referring to fig. 11, when the lip member 300 is inserted into the cylindrical cover 200 along the arrow direction, and fits the inner wall of the lower end 240 or is integrally formed with the lower end, the variation range of the elastic deformation is reduced, and the rigidity of the combined structure is increased. For realizing the sealing, the sealing connecting part is limited on the upper wall part of the cylindrical cover, and the lower end of the sealing cover and the dust collection cover are limited to be sealed through the lip edge structure, so that the cylindrical cover has the functions of sealing the lower opening of the buffer chamber and sealing the upper opening of the separation bin and the outside, and the compactness of the structure is improved. The rigidity of the cylindrical cover is increased through the lip edge part, so that the vibration amplitude and deformation of the cylindrical cover under impact are reduced, the noise is reduced, and meanwhile, the sealing failure caused by local deformation of the structure is avoided.

In addition, the structure can also realize dynamic sealing, in particular, the separation assembly keeps sealing at the annular sealing part between the separation chamber and the outside all the time in the process of moving from the first position to the second position.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a hand-held type cleaning device, includes airflow inlet, dirt gas separation unit, airflow generation unit and battery cell, dirt gas separation unit includes whirlwind separation portion, whirlwind separation portion is equipped with a plurality of ware of separating from soon, its characterized in that: a flexible supporting part is arranged in the partial area of the outer wall of the cyclone device, and the flexible supporting part is of a complete annular structure;

the dust collecting cover is used for collecting dust discharged from the dust outlet of each cyclone, and the flexible supporting piece is arranged at a position close to the dust outlet;

the cyclone separation part is provided with a motor front filtering chamber, the lower end of the motor front filtering chamber is formed by a motor front filtering cover, and at least part of the motor front filtering cover is arranged in the dust collection cover;

the filter housing further comprises a bracket for fixing the flexible support element, and the flexible support element and the bracket are attached to the outside of the filter housing in front of the motor.

2. The hand-held cleaning device of claim 1, wherein: at least part of the flexible supporting parts of the adjacent rotating-separating devices are integrally formed.

3. The hand-held cleaning device of claim 2, wherein: the cyclone separator comprises a first cyclone group and a second cyclone group which are arranged in parallel around an axis, wherein an ash outlet of the first cyclone group is positioned in a first height area, an ash outlet of the second cyclone group is positioned in a second height area, and the second height area is positioned at the upper part of the first height area; the flexible support comprises a first support group for supporting the first cyclone group and a second support group for supporting the second cyclone group, and the second support group is higher than the first support group in height.

4. The hand-held cleaning device of claim 3, wherein: at least partial region of the side wall of the flexible support is fixedly connected with the bracket.

5. The hand-held cleaning device of claim 3 or 4, wherein: the flexible supporting parts of every two first supporting groups and the flexible supporting parts of every second supporting group form a small group, and the flexible supporting parts of the small groups are integrally formed.

6. The hand-held cleaning device of claim 4, wherein: the upper end of the dust hood is combined with the bracket, a first sealing piece is arranged at the combining part of the bracket and the dust hood, and the first sealing piece and the flexible supporting piece are integrally formed.

7. The hand-held cleaning device of claim 6, wherein: the upper part of the front filter cover of the motor is combined with the upper part of the front filter chamber of the motor, a second sealing piece is arranged at the combining part, and the second sealing piece and the flexible supporting piece are integrally formed.

8. The hand-held cleaning device according to claim 7, wherein the flexible support, the first sealing member and the second sealing member are molded and/or cast and/or injection molded in a low temperature curing manner after the dust cage and the bracket are formed.

9. The hand-held cleaning apparatus according to claim 7, further comprising a separation bin surrounding the dust cage, the separation bin having an upper opening in the same height area as the upper end of the dust cage.

10. The hand-held cleaning device according to claim 9, wherein the separation chamber has a lower opening and a lower end cap closing the lower opening, and the lower end of the dust collection cover is flexibly connected with the lower end cap.