CN116269031A

CN116269031A - Handheld dust collector

Info

Publication number: CN116269031A
Application number: CN202310094954.2A
Authority: CN
Inventors: 蒋策; 石琳; 高钊
Original assignee: Dreame Technology Suzhou Co ltd
Current assignee: Dreame Technology Suzhou Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2023-06-23
Also published as: CN111481100A; CN116115109A

Abstract

The application discloses handheld dust catcher includes: the suction unit is provided with an air outlet end; a dust-gas separation unit detachably connected to one end of the suction unit and coaxially disposed; the handle is connected with the other end of the suction unit and is coaxially arranged, and the interior of the handle is hollow to form a hollow cavity; a power supply unit detachably provided in the hollow cavity of the handle; the air outlet filtering unit is detachably arranged on the outer side of the suction unit along the axial direction of the handle; the air outlet filtering unit is arranged at the air outlet end and is coaxial with the suction unit. Through the mode, the handheld dust collector can simplify the operation steps of dust removal, and the use experience of a user is improved; the filtering effect on the air outlet end can be improved; the influence of the duration of the power supply unit on the use of the user can be reduced, and the holding effect of the user during use is improved.

Description

Handheld dust collector

The application is a divisional application of Chinese invention patent with the application number of 202010378202.5, the application date of 2020, 05 and 07, and the name of a handheld dust collector.

Technical Field

The application relates to the technical field of cleaning devices, in particular to a handheld dust collector.

Background

The hand-held dust collector is usually self-powered, compact in size and convenient to carry and use, and is a household cleaning product between a common household dust collector and a portable dust collector. The existing handheld dust collector has the following defects: 1) The air outlet HEPA is not arranged, and the air exhausted from the air outlet end cannot be effectively filtered; 2) The dust cup is tedious to assemble and disassemble and easy to make mistakes, a user needs to spend great effort to separate the dust cup from a suction unit with a fan, the user needs to hold the dust cup with one hand and lift the cover body of the dust cup with the other hand in the ash pouring process, and the two hands are extremely easy to be stained with a large amount of dust and inconvenient to use; 3) The battery cannot be taken out from the interior of the suction unit after being installed, so that when the electric quantity of the battery is exhausted, the handheld dust collector cannot continue to perform cleaning operation, and can only wait until the battery is fully charged, thereby limiting the use of a user; 4) The handle of the hand-held cleaner also has the problem of poor holding effect.

Therefore, it is necessary to study a hand-held cleaner.

Disclosure of Invention

Aiming at the defects in the technology, the application provides the handheld dust collector, which can simplify the operation steps of ash removal and improve the use experience of users; the filtering effect on the air outlet end can be improved; the influence of the duration of the power supply unit on the use of the user can be reduced, and the holding effect of the user during use is improved.

In order to solve the technical problems, the technical scheme adopted by the application is as follows:

a hand-held cleaner comprising: the suction unit is provided with an air outlet end; a dust-gas separation unit detachably connected to one end of the suction unit and coaxially disposed; a handle connected with the other end of the suction unit and coaxially arranged, wherein the interior of the handle is hollow to form a hollow cavity; a power supply unit detachably provided to the hollow cavity of the handle; and an air-out filter unit detachably provided outside the suction unit in an axial direction of the handle; the air outlet filtering unit is arranged at the air outlet end and is coaxial with the suction unit.

Preferably, the suction unit comprises an outer shell in the air, wherein a first cylindrical section and a second cylindrical section which are adjacently arranged are formed on the outer shell in the axial direction of the outer shell, the outer diameter of the second cylindrical section is smaller than that of the first cylindrical section, the outer diameter of the handle is smaller than that of the second cylindrical section, so that the air outlet filter unit can be sleeved on the second cylindrical section from the side of the handle along the axial direction of the handle, and the air outlet end is arranged on the second cylindrical section; a first shaft shoulder is formed at the joint of the first cylindrical section and the second cylindrical section, and a second shaft shoulder is formed at the joint of the second cylindrical section and the handle; the circumference wall surface of the second cylindrical section is provided with a plurality of first air outlet holes which are internally and externally communicated so as to form the air outlet end capable of radially discharging air.

Preferably, the air outlet filtering unit comprises an air outlet sea kerchief sleeved on the second cylindrical section and a sea kerchief protection shell covered on the periphery of the air outlet sea kerchief, wherein the sea kerchief protection shell is detachably connected with the shell to form a circumferential annular space for accommodating the air outlet sea kerchief; the HEPA protective housing is further provided with a second air outlet corresponding to the first air outlet, wherein the first air outlet and the second air outlet are respectively positioned on the inner side and the outer side of the air outlet HEPA.

Preferably, the power supply unit is detachably arranged in the handle along the axial direction of the handle; the handle comprises a handle body with a hollow inside, and a connecting port is arranged on the handle body and is configured to put the power supply unit into the handle body or take the power supply unit out of the handle body.

Preferably, the power supply unit comprises a battery pack arranged in the hollow cavity of the handle body after being installed, an end cover connected with the battery pack and detachably connected with the handle body, and a charging electrode arranged on the battery pack; the end cover is positioned at the connecting port and forms a complete column body with the handle body.

Preferably, the end cover is provided with a first connecting structure, the handle body is provided with a second connecting structure, and the end cover is detachably connected to the handle body through configuration between the first connecting structure and the second connecting structure.

Preferably, the dust-gas separation unit includes a dust cup in communication with the suction unit and a dust cup cover pivotally connected to the dust cup for opening and closing the dust cup; the dust-gas separation unit and the suction unit are provided with a push button sliding chute structure, and the push button sliding chute structure is configured to enable the dust cup to be in sliding connection with the suction unit in the axial direction of the push button sliding chute structure, so that the dust cup cover and the dust cup and the suction unit can be synchronously unlocked.

Preferably, the cross section of the handle on a plane perpendicular to the axial direction of the handle is arranged in a circular arc runway shape; the arc runway comprises a pair of arc edges and a pair of straight edges, wherein the arc edges and the straight edges can be arranged in a surrounding mode to form a closed ring, and the arc edges are symmetrically arranged on two opposite sides of the straight edges; the radius of the arc edge is r, the length of the straight line edge is L, and the r and the L satisfy the following conditions: r > l.

Preferably, the side wall of the handle is also provided with a button and a through hole; the circular arc runway-shaped structure comprises a handle, a button, a through hole and a button, wherein the circular arc runway-shaped structure is provided with a long shaft and a short shaft, the long shaft forms a long shaft area of the handle, the short shaft forms a short shaft area of the handle, the button is arranged on one side of the long shaft area, and the through hole is arranged on the other side of the long shaft area.

Preferably, the sum of the lengths of the suction unit and the dust-gas separation unit in the axial direction is the length of the body of the handheld dust collector, wherein the ratio of the length of the body to the length of the handle is 1.4-1.6.

Compared with the prior art, the application has the beneficial effects that:

the application provides a handheld dust catcher, its air-out filter unit sets up in the outside of sucking unit along the axial detachably of handle, can improve the filter effect to the air-out end, and air-out filter unit has easy dismounting's advantage. Further, the push button sliding groove structure can enable the dust cup to be in sliding connection with the suction unit in the axial direction of the push button sliding groove structure, so that synchronous unlocking is achieved between the dust cup cover and the dust cup and between the dust cup and the suction unit, when dust is dumped, a user only needs to operate the push button to push the dust-air separation unit to move away from the suction unit, the dust cup can be enabled to pivot and be opened, the operation steps of ash removal are simplified, and the use experience of the user is improved. Still further, through with detachable connection between power supply unit and the handle to reduced the influence that power supply unit's continuation of journey used the user, had convenient to use's advantage.

Drawings

FIG. 1 is a schematic view of a hand-held cleaner of the present application;

FIG. 2 is an exploded view of the hand-held cleaner of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the hand-held cleaner of FIG. 1 in one direction;

FIG. 4 is a schematic view of the enlarged partial structure of circle A in FIG. 3;

FIG. 5 is a schematic diagram illustrating the cooperation between the first hook and the stopper in FIG. 4;

FIG. 6 is a schematic diagram of the assembly of the air outlet filter unit and the suction unit of the present application;

FIG. 7 is a schematic view of a partially enlarged structure in circle B of FIG. 6;

fig. 8 is a schematic structural view of the protective case of the hepa in fig. 6;

FIG. 9 is an exploded view of the handle of the present application;

fig. 10 is an exploded schematic view of the power supply unit in the present application;

figure 11 is a schematic cross-sectional view of the handle body of the present application,

FIG. 12 is an exploded schematic view of the end cap of the present application;

FIG. 13 is a schematic cross-sectional view of an end cap of the present application;

figure 14 is a schematic view of the hand-held cleaner of the present application in the direction of the end of the handle.

Description of the embodiments

The present application is described in further detail below with reference to the drawings to enable one skilled in the art to practice the same. If there is a description of "first," "second," etc. in an embodiment of the present application, the description of "first," "second," etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In the description of the present application, it should also be noted that, unless specified and limited otherwise, the terms "disposed" and "connected" are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art in the specific context.

In addition, if the meaning of "and/or" appears in this application, three parallel schemes are included, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme that a and B satisfy simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.

At present, a hand-held cleaner is a cleaning device commonly used in households or public places, and the working principle of the hand-held cleaner is that a fan is utilized to generate negative air pressure in a sealed shell, and dust-containing air is sucked under the action of the pressure difference. The existing handheld dust collector has the following defects: 1) Because no air outlet HEPA is arranged, the air exhausted from the air outlet end cannot be effectively filtered; 2) The dust cup is tedious to assemble and disassemble and easy to make mistakes, a user needs to spend great effort to separate the dust cup from a suction unit with a fan, the user needs to hold the dust cup with one hand and lift the cover body of the dust cup with the other hand in the ash pouring process, and the two hands are extremely easy to be stained with a large amount of dust and inconvenient to use; 3) The battery cannot be taken out from the interior of the suction unit after being installed, so that when the electric quantity of the battery is exhausted, the handheld dust collector cannot continue to perform cleaning operation, and can only wait until the battery is fully charged, thereby limiting the use of a user; 4) The handle of the hand-held cleaner also has the problem of poor holding effect.

In order to solve the above-mentioned technical problems, the present application provides a handheld vacuum cleaner, please refer to fig. 1 to 3, fig. 1 is a schematic structural diagram of the handheld vacuum cleaner in the present application, fig. 2 is an exploded structural diagram of the handheld vacuum cleaner in fig. 1, and fig. 3 is a schematic sectional structural diagram of the handheld vacuum cleaner in fig. 1 in one direction. In this application, the hand-held cleaner may include a suction unit 10, a dust-gas separation unit 20, a handle 30, and an air-out filter unit 40, which are coaxially disposed. With continued reference to fig. 1-3 in conjunction with fig. 14, fig. 14 is a schematic view of the structure of the hand-held cleaner in the direction of the end of the handle, and the "coaxial arrangement" in the present application means: the suction unit 10 has a first central axis disposed in the front-rear direction, the dust-gas separation unit 20 has a second central axis disposed in the front-rear direction, the handle 30 has a third central axis disposed in the front-rear direction, the first, second and third central axes are disposed in line, and the common axis is axis Z, i.e., the dust-gas separation unit 20, the suction unit 10 and the handle 30 are disposed in the front-rear direction in the horizontal direction and are located on the same axis.

Specifically, along the axial direction of the suction unit 10, the dust-gas separation unit 20 and the handle 30 are respectively located at opposite ends of the suction unit 10, the dust-gas separation unit 20 is disposed at one end of the suction unit 10 and extends forward from the front end of the suction unit 10, and the handle 30 is disposed at the other end of the suction unit 10 and extends rearward from the rear end of the suction unit 10. The suction unit is used for forming negative pressure so as to suck dust gas; the suction unit 10 includes a blower 12, and the handle 30 penetrates through the air-out filter unit 40, so that the air-out filter unit 40 can be disposed at an air-out end of the suction unit 10, and the air-out filter unit 40 communicates with the dust-gas separation unit 20 and the suction unit 10, so that dust gas can sequentially pass through the dust-gas separation unit 20 and the suction unit 10 after being sucked by the blower 12 of the suction unit 10, and finally be discharged after being filtered by the air-out filter unit 40.

Further, an air inlet HEPA 13 is further arranged at the air inlet of the fan 12, an air outlet filter unit 40 is arranged at the downstream of the air outlet path of the fan 12, the air inlet HEPA 13 is arranged inside the suction unit 10, and the air outlet filter unit 40 is arranged at the outer side of the suction unit 10 and is positioned at the air outlet end of the suction unit 10. The air intake HEPA 13 is mainly used for filtering large foreign matters in dust and gas, such as particles, paper scraps or hair, and blocking the foreign matters in the dust and gas separation unit 20; the air outlet filtering unit 40 can effectively and secondarily purify the air discharged by the fan 12, and can filter most of fine particles in the air discharged by the fan 12, so that the air passing through the dust collector is purified and then discharged, and secondary pollution is reduced.

In one embodiment, the dust-gas separation unit 20 may include a dust cup 21 and a dust cup cover 22, and the dust cup cover 22 is pivotally connected to a cup opening of the dust cup 21; the dust cup cover 22 is provided with an air inlet pipe 221, and the air inlet pipe 221 is used for forming an air suction port of the handheld dust collector. The dust cup 21 is hollow inside and is opened at an end thereof to form a first port 211 at a front end and a second port 212 at a rear end, the first port 211 being a cup opening of the dust cup 21, and the dust cup cover 22 being pivotally connected to the first port 211 to open and close the first port 211; the second port 212 is adapted to cooperate with the suction unit 10 to form a conductive suction circuit.

In an embodiment, sealing rings may be further provided between the dust cup cover 22 and the first port 211 of the dust cup 21 and between the second port 212 of the dust cup 21 and the suction unit 10 to improve the air tightness of the dust-gas separation unit 20.

Further, in view of convenience of users in pouring dust, with continued reference to fig. 2 and 3, in an embodiment, the suction unit 10 is detachably connected to the dust-gas separation unit 20, and the suction unit 10 may be slidably connected to the dust-gas separation unit 20 in its own axial direction. The suction unit 10 may include a housing 11 with a hollow interior and detachably abutting against the second port 212 of the dust cup 21, where a plurality of protruding points 119 distributed along the circumference of the second port 212 are formed at the matching position of the housing 11 and the second port 212, for being in clamping connection with the second port 212, and the fan 12 is disposed in the hollow cavity of the housing 11. A push button chute structure is provided between the housing 11 and the dust cup 21, the push button chute structure being configured such that the dust cup 21 can be slidably connected with the suction unit 10 in its own axial direction to simultaneously unlock between the dust cup cover 22 and the dust cup 21 and between the dust cup 21 and the suction unit 10; of course, the push button chute structure is also used for realizing synchronous locking between the dust cup cover 22 and the dust cup 21, and between the dust cup 21 and the shell 11. When the push button chute structure is in the locked state, the first port 211 cannot be opened by the dust cup cover 22, and the dust cup 21 cannot be separated from the housing 11, in which state the dust-gas separation unit 20 cannot perform the dust-pouring operation; when the push-torsion chute structure is in the unlocked state, the dust cup cover 22 can open the first port 211, and the dust-gas separation unit 10 can slide relative to the suction unit 20.

In one embodiment, the push button chute structure includes a sliding sub-structure that enables the dirt cup 21 to slide in its own axial direction and a catch sub-structure that connects the dirt cup cover 22 and the housing 11. The sliding sub-structure includes a bulge 213 formed on the outer circumferential wall of the dust cup 21 and extending in the axial direction thereof, a cambered surface type guide bar 111 formed on the housing 11 and extending into the bulge 213, and a push button 112 slidably provided on the guide bar 111. The guide bar 111 is provided with a slide groove 1111 extending in the axial direction of the dust cup 21 and engaged with the push button 112, and the push button 112 can slide in the slide groove 1111. The bulge 213 is hollow and is provided with two opposite ends open to form a containing cavity passing through the bulge; the front end of the bulge 213 is flush with the first port 211, and the accommodating cavity of the bulge 213 is independent from the hollow cavity of the dirt cup 21. The bulge 213 is provided with a button hole 2131 for accommodating the button 112, and the button hole 2131 is configured such that when a forward or backward pushing force is applied to the button 112, the button 112 can drive the bulge 213 and thus the dust cup 21 to slide relative to the housing 11, and specifically, the button 112 can drive the dust cup 21 together to move forward or backward along the axial direction thereof, so as to unlock or lock the dust cup 21 and the housing 11.

In one embodiment, the bump 213 is provided with a protruding button structure (shown in the figure), and when the button is pressed to unlock, the bump 213 and the guide bar 111 can slide relatively.

Further, the hook substructure includes a first hook 113 pivotally connected to the front end surface of the guide strip 111 and located in the bulge 213, and a second hook 222 fixedly disposed on the dust cup cover 22 and capable of extending into the accommodating cavity of the bulge 213 and then being engaged with the first hook 113. The guide strip 111 and the second hook 222 can extend into the accommodating cavity from the rear end and the front end, respectively.

Specifically, referring to fig. 4 and fig. 5 in conjunction with fig. 2, fig. 4 is a schematic view of a partial enlarged structure of a circle a in fig. 3, and fig. 5 is a schematic view of the cooperation between the first hook and the stopper 114 in fig. 4. The first hook 113 is pivoted on the front end surface of the guide strip 111 through a pivot base 115, the pivot base 115 is fixedly arranged on the front end surface of the guide strip 111, and a torsion spring capable of resetting the first hook 113 is sleeved on a pivot shaft between the pivot base 115 and the first hook 113. The hook portion of the first hook 113 is provided with a first guiding surface 1131 which is convenient for the second hook 222 to separate when unlocking and a second guiding surface 1132 which is convenient for the second hook 222 to be clamped when locking. The first guiding surface 1131 and the second guiding surface 1132 have acute included angles with the horizontal plane, and the included angles have the following range: 22 ° to 68 °, 25 °, 30 °, 35 °, 40 °, 45 °, 50 °, 55 °, 60 °, and 65 °, may be used to better disengage or engage the first hook 113 and the second hook 222. The second hook 222 is provided with a third guiding surface 2221 and a fourth guiding surface 2222, the third guiding surface 2221 is matched with the first guiding surface 1131, and the fourth guiding surface 2222 is matched with the second guiding surface 1132.

Further, a stop block 114 is fixed on the front end surface of the guide strip 111, and the stop block 114 abuts against one side surface of the first hook 113, on which the hook portion is formed; the stop 114 is used for limiting the clamping position of the first hook 113 so as to facilitate smooth clamping of the first hook 113 and the second hook 222.

Having fully described the push button chute structure above, those skilled in the art will understand the unlocking or locking process as follows:

a, synchronous unlocking process: the push button 112 applies a forward pushing force, the push button 112 drives the dust cup 21 to move forward together, in the process, the dust cup 21 and the shell 11 are unlocked, meanwhile, as one side of the dust cup cover 22 is pivoted with the dust cup 21, the opposite side of the dust cup cover 22 is clamped with the shell 11, the dust cup cover 22 tends to move forward together with the dust cup 21, when the applied pushing force is greater than the elastic torsion restoring force of the torsion spring, the second hook 222 forces the first hook 113 to rotate far away from the second hook 222 side, and therefore the dust cup 21 and the dust cup cover 22 are unlocked, namely, the synchronous unlocking of the dust cup 21 and the dust cup cover 22 and the synchronous unlocking of the dust cup 21 and the shell 11 are realized.

b, synchronous locking process: a backward pushing force is applied to the dust cup cover 22, so that the dust cup cover 22 abuts against the first port 211, the second hook 222 of the dust cup cover 22 extends into the bulge 213 and then is clamped with the first hook 113, in the process, the dust cup 21 is reset to be clamped with the shell 11, and the push button 112 is reset to be in an initial state under the driving of the dust cup 21, so that synchronous locking of the dust cup 21 and the dust cup cover 22 and synchronous locking of the dust cup 21 and the shell 11 are realized. In the whole movement process, the push button 112 and the dust cup 21 are always kept in a clamping state, and the push button 112 drives the dust cup 21 to move when moving; similarly, the push button 112 can be moved when the dust cup 21 is moved.

In this way, when the dust is dumped into the hand-held cleaner, the user only needs to operate the push button 112 to push the dust-air separation unit 20 to move away from the suction unit 10, so that the dust cup cover 22 can pivot and open the dust cup 21, thereby simplifying the operation steps of dust removal and improving the use experience of the user.

Further, it is contemplated that the outlet filter unit 40 may be removed from the suction unit 10 for cleaning after a period of use. For easy disassembly, the air outlet filter unit 40 is detachably provided outside the suction unit 10 in the axial direction of the handle 30, and the air outlet filter unit 40 is provided adjacent to the handle 30 in the axial direction of the handle 30. The suction unit 10 is provided with an air outlet end, and the air outlet filter unit 40 is provided at the air outlet end coaxially with the suction unit 10, and the air outlet filter unit 40 is configured to filter an air flow discharged through the air outlet end. Referring to fig. 6, fig. 6 is an assembly schematic diagram of the air outlet filter unit and the suction unit in the present application. The air-out filtering unit 40 may include an air-out HEPA 41 and a HEPA protecting case 42, wherein the air-out HEPA 41 is sleeved on the outer circumferential wall of the housing 11 and is disposed close to the handle 30. The HEPA protective shell 42 is disposed around the periphery of the outlet HEPA 41 and is detachably connected with the housing 11 of the suction unit 10 to form a circumferential annular space for accommodating the outlet HEPA 41. Therefore, when the air-out HEPA 41 needs to be replaced, the air-out HEPA 41 can be replaced by only detaching the HEPA protecting shell 42 from the suction unit 10, and the air-out HEPA protecting shell has the advantage of convenience in assembly and disassembly.

Specifically, the housing 11 of the suction unit 10 is formed with a first cylindrical section and a second cylindrical section 1171 provided adjacently in the axial direction thereof, wherein the outer diameter of the second cylindrical section 1171 is smaller than that of the first cylindrical section, and the outer diameter of the handle 30 is smaller than that of the second cylindrical section 1171, so that the air-out filter unit 40 can be sleeved onto the second cylindrical section 1171 from the handle 30 side and in the axial direction of the handle 30, and the second cylindrical section 1171 is provided with an air-out end. It will be appreciated that the junction of the first cylindrical section 1171 and the second cylindrical section 1171 defines a first shoulder 116 and the junction of the second cylindrical section 1171 and the handle 30 defines a second shoulder 1161. The second cylindrical section 1171 is sleeved with the air outlet HEPA 41, and the shaft shoulder 116 is used for axially limiting the air outlet HEPA 41. The circumferential wall surface of the second cylindrical section 1171 is provided with a plurality of first air outlet holes 117 which are communicated with each other from inside to outside so as to form an air outlet end capable of radially outputting air; the first air outlet holes 117 are arranged along the radial direction of the suction unit 10, so that the handheld dust collector in the application can radially outlet air, wherein the first air outlet holes 117 are distributed on the circumferential wall surface of the second cylindrical section 1171 in a circular array manner, so that the purpose of uniform air outlet is achieved.

Further, the HEPA protective housing 42 is substantially sleeve-shaped, and includes a cylindrical shell 421 surrounding the periphery of the air-out HEPA 41 and a circular protruding edge 422 formed at the rear end of the cylindrical shell 421 and extending radially along the cylindrical shell 421, wherein an arc guide angle 424 is arranged at the joint between the cylindrical shell 421 and the protruding edge 422, the protruding edge 422 is used for covering the rear end of the air-out HEPA 41, and the front end of the air-out HEPA 41 abuts against the shaft shoulder 116, so that the air-out HEPA 41 can be effectively limited at the periphery of the second cylindrical section.

Further, a plurality of second air outlet holes 4211 are formed in the cylindrical shell 421, the first air outlet holes 117 and the second air outlet holes 4211 are respectively located at the inner side and the outer side of the air outlet HEPA 41, and the plurality of second air outlet holes 4211 and the plurality of air outlet holes 117 are correspondingly arranged, so that the influence of the air outlet HEPA 41 on the air outlet rate is avoided. In appearance, the outer circumference of the cylindrical shell 421 is on the same cylindrical surface as the outer circumference of the first cylindrical section, the inner diameter of the convex edge 422 is equal to the outer diameter of the second cylindrical section, and the convex edge 422 is flush with the rear end of the second cylindrical section 1171. Thus, the HEPA protecting shell 42 and the shell 11 form a complete column body, and have the advantage of attractive appearance.

Further, the HEPA protective shell 42 may be clamped or screwed to the housing 11 of the suction unit 10. When the hpa protective housing 42 is connected with the housing 11 of the suction unit 10 in a clamping manner, the first clamping structure 118 is disposed at the shaft shoulder 116, the second clamping structure 423 matched with the first clamping structure 118 is disposed on the inner wall of the front end of the hpa protective housing 42, and the hpa protective housing 42 is clamped with the housing 11 through the cooperation between the second clamping structure 423 and the first clamping structure 118.

Referring to fig. 7 and 8 in conjunction with fig. 6, fig. 7 is a schematic view of a part of the enlarged structure of the fig. 6B ring, and fig. 8 is a schematic view of the structure of the fig. 6 hpa protective shell. The clamping manner between the hpa protective shell 42 and the shell 11 may be a turnbuckle or a buckle, when the hpa protective shell 42 and the shell 11 are connected by the turnbuckle, the first clamping structure 118 is a first rib in a shape of a straight line, and the second clamping structure 423 is a second rib in a shape of an L and matched with the first rib; when the hepa protection shell 42 is connected with the housing 11 through a buckle, the first clamping structure 118 is a bayonet, and the second clamping structure 423 is a buckle body.

Further, please refer to fig. 9 in conjunction with fig. 1-2, fig. 9 is an exploded view of the handle of the present application. The handle 30 is disposed in a hollow manner, and the handle 30 is disposed at an end of the suction unit 10 away from the dust-gas separation unit 20, and may specifically include a handle body 31 having a hollow interior and two open ends, where the front opening of the handle body 31 is fixedly connected and communicated with the rear end of the housing 11 of the suction unit 10. The handle body 31 is provided with a key 32 for opening and closing the fan 12; the key 32 is disposed near the rear end of the housing 11.

Further, in view of portability of the hand-held cleaner, referring to fig. 9, in an embodiment, the hand-held cleaner may further include a power supply unit 50, the power supply unit 50 being detachably disposed in the hollow cavity of the handle 30 for supplying power to the blower 12 (see fig. 3) located inside the suction unit 10. Therefore, when the user uses the wireless communication device, wireless use can be realized; and because the power supply unit 50 is detachably connected with the handle 30, a user can replace the power supply unit 50 when the power supply unit 50 needs to be charged, so that the problem that the use of the user is influenced due to the problem of the continuous voyage of the power supply unit 50 is reduced.

In an embodiment, please refer to fig. 9 and 10, fig. 10 is an exploded schematic view of the power supply unit in the present application. The power supply unit 50 can be detachably disposed in the handle 30 along the axial direction of the handle 30, and after the power supply unit 50 is mounted to the handle 30, the rear end of the power supply unit 50 is exposed to the outside of the handle 30 and forms a complete column with the handle 30. The handle body 31 is provided with a connection port configured to put the power supply unit 50 into the handle body 31 or take it out of the handle body 31, and in this application, the connection port is a rear end opening of the handle body 31. In this application, the power supply unit 50 may be an independent unit, that is, the whole charging unit 50 is taken out from the hollow cavity of the handle body 31, and may be integrally installed into the hollow cavity of the handle body 31, so as to realize two charging modes of the power supply unit 50, namely, internal charging and external charging. The internal charging means a charging manner when the power supply unit 50 is mounted on the handle body 31; the external charging means a charging mode after the power supply unit 50 is taken out from the handle body 31.

Specifically, the power supply unit 50 may include a battery pack 51 disposed in the hollow cavity of the handle body 31 after the installation, an end cap 52 disposed at the rear end of the battery pack 51 and detachably connected to the rear end of the handle body 31, a circuit board 54 disposed at the front end of the battery pack 51, and a charging electrode 53 detachably disposed on the circuit board 54, where the end cap 52 is disposed at the connection port and forms a complete column with the handle body 31. The charging electrode 53 is arranged on the battery pack 51 through the circuit board 54, the battery pack 51 is electrically connected with the circuit board 54, and the charging electrode 53 is electrically connected with the circuit board 54; the battery pack 51 includes a plurality of batteries 511 and a bracket 512 for wrapping the batteries 511 as a whole, and the bracket 512 is in a hollow shape with a thin shell arranged in two halves. After the power supply unit 50 is mounted to the handle body 31, the end cap 52 of the power supply unit 50 forms a rear end cap of the handle 30, and the circuit board 54 and the charging electrode 53 are both located within the hollow cavity of the handle body 31. The handle body 31 is provided with a through hole 311, and the through hole 311 is used for exposing the charging electrode 53 positioned in the handle body 31 so as to facilitate charging. In this application, the power supply unit 50 is mounted into the handle 30 to form an electrical connection with the key 32, and the charging electrode 53 is exposed to the outside from the through hole 311, so as to facilitate the internal charging of the power supply unit 50. When the power supply unit 50 is taken out from the handle body 31, the power supply unit 50 may externally charge the battery pack 51 through the self-contained charging electrode 53. Therefore, the handheld dust collector in the application can have the characteristics of replaceable power supply unit 50 and internal and external charging, so that the problem that normal use is influenced due to the problem of endurance is greatly avoided.

Further, in order to achieve detachable connection of the power supply unit 50 and the arm 30, a first connection structure is provided on the end cap 52, a second connection structure is provided at the rear end of the handle body 31, and the end cap 52 is detachably connected to the rear end of the handle body 31 through a configuration between the first connection structure and the second connection structure.

Specifically, referring to fig. 12 and 13, fig. 12 is an exploded schematic view of the structure of the end cap in the present application, and fig. 13 is a schematic view of the cross-sectional structure of the end cap in the present application. The first connection structure includes a push-clamping member 55 and a compression spring 56 disposed on the end cover 52, the compression spring 56 is used for providing an elastic restoring force for the push-clamping member 55, and the push-clamping member 55 is telescopically disposed on the end cover 52 through the compression spring 56. The end cap 52 is hollow internally to form a mounting cavity for receiving the push clip 55 and the compression spring 56. The push-clamping member 55 comprises a clamping plate 551 horizontally arranged and a push block 552 formed above the clamping plate 551, the rear end surface of the end cover 52 is provided with a first through hole 521 for exposing the push block 552, and the push block 552 can slide in the first through hole 521.

Further, a first limit post 523 is fixed on the wall of the installation cavity of the end cover 52, a second limit post 553 which is fixedly connected with the clamping plate 551 and is positioned below the push block 552 is further formed on the push block 55, the first limit post 523 and the second limit post 553 are arranged in a collinear manner, one end of the pressure spring 56 is sleeved on the first limit post 523, and the other end of the pressure spring is abutted against the second limit post 553.

Referring to fig. 3 and fig. 13, the second connection structure includes a rib plate 33 fixedly disposed at a rear end opening of the handle body 31 and extending backward into a mounting cavity of the end cover 52, a second through opening 522 capable of extending the rib plate 33 into the mounting cavity of the end cover 52 is disposed on a front end surface of the end cover 52, a socket 331 is disposed on the rib plate 33, the socket 331 is used for being engaged with an end portion of the clamping plate 551, the clamping plate 551 and the socket 331 are disposed in a co-linear manner, and the clamping plate 551 can be inserted into the socket 331.

It will be appreciated that the end cap 52 may be fixedly connected to the battery pack 51 or may be detachably connected to the battery pack. Preferably, the end cover 52 and the battery pack 51 are detachably connected, so that the battery pack has the advantage of convenience in disassembly and assembly.

Having fully described the power supply unit 50 above, one skilled in the art will understand the following operation:

when the power supply unit 50 is disassembled, referring to fig. 3 and referring to fig. 12, the push block 552 is pushed in a transverse direction perpendicular to the axial direction thereof, that is, the push block 552 is pushed in a direction perpendicular to the axial direction thereof, so that the push block 552 slides in the first through hole 521 of the end cover 52, and the clamping plate 551 is driven to withdraw from the socket 331 at the top of the handle body 31, and at the same time, a pulling force along the axial direction thereof is applied to the end cover 52, so as to take out the power supply unit 50 from the handle 30.

When the power supply unit 50 is installed, referring to fig. 3 in combination with fig. 12, the pushing block 552 is pushed along the direction perpendicular to the axial direction thereof, so that the clamping plate 551 is in a state of being retracted into the end cover 52, at this time, the power supply unit 50 is integrally inserted into the handle 30, so that the power supply unit 50 is electrically connected with the key 32, and the charging electrode 53 is exposed to the outside from the through hole 311, and then, the pushing block 552 is released, so that the clamping plate 551 is inserted into the socket 331 under the action of the pressure spring 56, thereby completing the installation of the power supply unit 50.

It should be understood that the present application only exemplifies the implementation manner in which the power supply unit 50 is assembled into the interior of the handle 30 along the axial direction of the handle 30, and in other embodiments, the power supply unit 50 may also be assembled into the interior of the handle 30 along the radial direction of the handle 30, and those skilled in the art may make adjustments according to the actual situation, which is not described herein in detail.

With continued reference to fig. 3, the ratio between the body length M and the handle length N is defined in consideration of the problem of the center of gravity of the hand-held cleaner and the grip feeling in use. First, the length here refers to a distance value in the axial direction; the handle length N refers to the axial distance from the front end to the rear end of the handle 30, and the body length is the sum of the lengths of the suction unit 10 and the dust-gas separation unit 20 in the axial direction, and it should be noted that the axial length of the dust-gas separation unit 20 does not include the axial length of the air inlet pipe 221 connected thereto. In the present application, the ratio of the length M of the machine body to the length N of the handle ranges from 1.4 to 1.6, and 1.45, 1.50 and 1.55 can be taken. Therefore, the gravity center of the handheld dust collector is enabled to be more stable, the handheld dust collector has better holding feel, and the use experience of a user is effectively improved.

Further, referring to fig. 11 in combination with fig. 3, fig. 11 is a schematic cross-sectional structure of the handle body in the present application, in which the cross-sectional shape of the handle body 31 on a plane perpendicular to the axial direction thereof is configured as a circular arc racetrack shape for the convenience of the user to grip and promote the feel.

Specifically, the cross-sectional shape includes a pair of circular arc edges 301 and a pair of straight edges 302, the pair of straight edges 302 are parallel to each other, and the pair of circular arc edges 301 are symmetrically disposed on opposite sides of the pair of straight edges 302. One circular arc edge is connected with one end of the pair of straight edges 302, and the other circular arc edge is connected with the other end of the pair of straight edges to form a closed ring. The radius of the circular arc edge 301 is r, the length of the straight line edge 302 is L, and r and L satisfy the following conditions: r > l. Thereby facilitating the user's grip.

Specifically, the arc racetrack shape has a long axis forming a long axis region of the handle 30 and a short axis forming a short axis region of the handle 30, the key 32 is disposed on one side of the long axis region, and the through hole 311 is disposed on the other side of the long axis region.

In summary, the present application provides a handheld dust collector, which is provided with a push-twist chute structure between a dust-gas separation unit and a suction unit, so as to realize the separation of the two and the synchronous opening and closing of a dust cup, thereby simplifying the operation steps of a user; further, the air outlet filtering unit is arranged at the air outlet end of the suction unit, so that the filtering effect on the air outlet end can be improved; still further, the power supply unit is detachably connected with the handle, so that the influence of the cruising of the power supply unit on the use of a user is reduced; still further, through setting up the handle into circular arc racetrack shape in this application, and set up the proportion of handle and fuselage length to 1.4~1.6 to improved the effect of gripping of user when using, and made the center of handheld dust catcher more steady.

Although embodiments of the present application have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use suitable for the application, and further modifications may be readily made by those skilled in the art, so that the application is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined by the claims and their equivalents.

Claims

1. A hand-held cleaner, comprising:

the suction unit is provided with an air outlet end;

a dust-gas separation unit detachably connected to one end of the suction unit and coaxially disposed; and

the handle is connected with the other end of the suction unit and is coaxially arranged, so that the suction unit, the dust-gas separation unit and the handle are sequentially positioned on the same axis;

the sum of the lengths of the suction unit and the dust-gas separation unit in the axial direction is the length of the body of the handheld dust collector, and the ratio of the length of the body to the length of the handle is 1.4-1.6.

2. The hand-held cleaner of claim 1 wherein the ratio of the length of the body to the length of the handle is in the range of 1.45 to 1.6.

3. The hand-held cleaner of claim 2 wherein the ratio of the length of the body to the length of the handle is in the range of 1.45 to 1.55.

4. A hand-held cleaner according to claim 3, wherein the ratio of the length of the main body to the length of the handle is in the range 1.45 to 1.50.

5. The hand-held cleaner of claim 2 wherein the ratio of the length of the body to the length of the handle is any one of 1.45, 1.50, 1.55.

6. The hand-held cleaner of claim 1 further comprising a power supply unit;

the power supply unit is detachably arranged in the hollow cavity of the handle along the axial direction of the handle.

7. The hand-held cleaner according to claim 6, wherein a through hole is provided in a side wall of the handle body, the through hole being configured such that a charging electrode of the power supply unit located in the handle body is exposed.

8. The hand-held cleaner according to claim 7, wherein the handle is provided with a circular arc racetrack shape in cross-section in a plane perpendicular to the axial direction thereof; the arc runway comprises a pair of arc edges and a pair of straight edges, wherein the arc edges and the straight edges can be arranged in a surrounding mode to form a closed ring, and the arc edges are symmetrically arranged on two opposite sides of the straight edges;

the radius of the arc edge is r, the length of the straight line edge is L, and the r and the L satisfy the following conditions: r > l.

9. The hand-held cleaner of claim 8 wherein the sidewall of the handle is further provided with a key;

the arc runway-shaped handle is provided with a long shaft and a short shaft, the long shaft forms a long shaft area of the handle, the short shaft forms a short shaft area of the handle, the key is arranged on one side of the long shaft area, and the through hole is positioned on the other side of the long shaft area.