CN214760861U - Vacuum cleaner - Google Patents

Abstract

The utility model discloses a vacuum cleaner, it has dirty air inlet, clean air outlet and set up the separator in dirty air inlet to clean air outlet's air flow path, separator has longitudinal axis and follows the foul collector of longitudinal axis setting, higher level's whirlwind separating unit and subordinate's whirlwind separating unit, dirty air inlet sets up the region between higher level's whirlwind separating unit and subordinate's whirlwind separating unit, and communicate to higher level's whirlwind separating unit through the gyration passageway, so that dirty air gets into higher level's whirlwind separating unit's separation chamber through gyration passageway gyration downwards. According to the invention, the dirty air inlet is rotated downwards through the rotating channel to enter the separating cavity of the upper-level cyclone separating unit, so that a sufficient rotating path can be formed before dirty air is separated, and the first-level separation efficiency is higher; meanwhile, the particles separated out in the first stage can be pushed to the end part of the separation cavity more quickly by rotating downwards; the end part side of the separation cavity does not need to be additionally provided with an air inlet cylinder, and the dust collection space can be further increased.

Description

Vacuum cleaner

Technical Field

The utility model relates to a dust catcher technical field has especially related to a vacuum cleaner.

Background

Cleaning appliances such as vacuum cleaners having a cyclonic separator are known in the art. In general, cyclonic vacuum cleaners, in which dirt-and dust-laden air enters a first cyclonic separator via a tangential inlet, dirt is separated by centrifugal force in a re-collection chamber and cleaner air passes out of the collection chamber into a second cyclonic separator, separate finer particles of dirt and dust than the first cyclonic separator. The handheld cleaning equipment disclosed in the Chinese invention patent (publication number: CN101489457B, published: 2012-06-27) adopts a two-stage cyclone separation cleaning mode, but a dirty air inlet of the handheld cleaning equipment directly enters a separation cavity on the side wall of a first cyclone separator body in a tangential direction, and a convoluted path before separation is very short, so that the first-stage separation effect is poor; also, as disclosed in the chinese invention patent (publication No. CN105030148A, published as 2015-11-11), a two-stage cyclone separation cleaning method is adopted, and although the dirty air inlet is disposed inside the annular separation chamber and internally tangent-rotated into the separation chamber, the problem of poor first-stage separation effect due to a short swirling path after the dirty air tangentially enters from the sidewall is solved to some extent, but the swirling path is still insufficient due to the structural design of the air inlet disposed in the annular separation chamber, and the first-stage separation effect is still to be improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides a vacuum cleaner.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

a vacuum cleaner having a dirty air inlet, a clean air outlet and a separating apparatus disposed in an air flow path from the dirty air inlet to the clean air outlet, the separating apparatus having a longitudinal axis and a dirt collector, an upper cyclonic separating unit and a lower cyclonic separating unit disposed along the longitudinal axis, the dirty air inlet being disposed in an area between the upper and lower cyclonic separating units and being connected to the upper cyclonic separating unit via a return duct so that dirty air is returned downwardly via the return duct into a separating chamber of the upper cyclonic separating unit.

As a preferred embodiment of the vacuum cleaner provided by the present invention, the lead of the revolving channel is set to at least 1 lead, approximately 1 lead or more than 1/2 lead.

As a preferred embodiment of the vacuum cleaner provided in the present invention, the communication passage of the upper cyclone unit and the lower cyclone unit passes through the revolving passage.

As a preferred embodiment of the vacuum cleaner provided in the present invention, an end of the separation chamber on a side away from the lower cyclone unit is provided with a dust collection cover for opening or closing the end.

As a preferred embodiment of the vacuum cleaner provided by the present invention, a separating cylinder is disposed in the separating chamber, and is disposed along the longitudinal axis; the separation cylinder is provided with holes, so that dirty air entering through the rotary channel in a downward rotary mode can conveniently pass through the holes, and part of clean air after cyclone separation in the separation cavity passes through the holes.

As a preferred embodiment of the vacuum cleaner provided in the present invention, the dust collecting case of the separation chamber is detachably connected to the lower stage cyclone unit body.

As a preferred embodiment of the vacuum cleaner provided by the present invention, the lower stage cyclone unit comprises a plurality of cyclones arranged about the longitudinal axis; the lower stage cyclone separating unit further includes a dust collecting tube for collecting fine dust separated by the plurality of cyclone separators.

As a preferred embodiment of the vacuum cleaner provided by the present invention, the dust collecting tube passes through the communication passage to extend to an end of the separation chamber.

As a preferred embodiment of the vacuum cleaner provided by the present invention, a dust collecting sub-cylinder on the dust collecting cylinder between the separating cylinder and the end portion is configured to be detachable.

As a preferred embodiment of the vacuum cleaner provided by the present invention, the dirty air inlet is connected to an air inlet drum which is located outside the separation chamber and in parallel with the longitudinal axis.

The utility model discloses following beneficial effect has:

the utility model discloses set up dirty air inlet in the region between higher level whirlwind separation unit and the subordinate whirlwind separation unit, and communicate to higher level whirlwind separation unit through the gyration passageway to make dirty air pass through the gyration passageway is gyration downwards and is got into the separation chamber of higher level whirlwind separation unit, such structural design, the region between higher level whirlwind separation unit and subordinate whirlwind separation unit has sufficient space to set up gyration passageway in order to have sufficient route of circling round before letting dirty air separation, and the gyration stroke is longer promptly, lets the air current produce a more efficient gyration effect, and the gyration air current speed of formation is higher, and the effect of dust separation is better, and then makes first order separation efficiency higher; meanwhile, when the dirty air rotates downwards from the top through the rotary channel, the particles separated in the first stage can be pushed to the end part of the separation cavity more quickly by rotating downwards; the end part side of the separation cavity does not need to be additionally provided with an air inlet cylinder, the structure is simplified and easy to manufacture, and the dust collecting space can be further increased.

Drawings

FIG. 1 is a schematic view of the vacuum cleaner in one state;

FIG. 2 is a schematic view of the vacuum cleaner in another state;

FIG. 3 is a partial cross-sectional view of the state of FIG. 2;

FIG. 4 is a schematic view showing the construction of the dust collecting case in the state of FIG. 1;

FIG. 5 is an exploded view of the rotary drum with rotary channel of the present invention;

FIG. 6 is a schematic structural view of a detachable component of the present invention;

FIG. 7 is a schematic view of the vacuum cleaner with an air inlet tube and a detachable part;

FIG. 8 is an exploded view of FIG. 7;

fig. 9 is a schematic structural view of the vacuum cleaner with a handle according to the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a vacuum cleaner having a dirty air inlet 1, a clean air outlet 2, and a separating apparatus 3 disposed in an air flow path from the dirty air inlet 1 to the clean air outlet 2. The separating apparatus 3 has a longitudinal axis 31 and a dirt collector 32, an upper stage cyclone separating unit 33 and a lower stage cyclone separating unit 34 arranged along the longitudinal axis 31, and further the dirty air inlet 1 is arranged in the region between the upper stage cyclone separating unit 33 and the lower stage cyclone separating unit 34, i.e. the dirty air inlet 1 is arranged above the upper stage cyclone separating unit 33 and communicates via a return channel 351 into the upper stage cyclone separating unit 33, so that dirty air is returned via the return channel 351 downwardly into the separating chamber 331 of the upper stage cyclone separating unit 33.

In a specific implementation, as shown in fig. 3 to 5, the revolving channel 351 is disposed in an annular chamber 352 of the revolving drum 35, the revolving channel 351 has a revolving channel inlet 353 disposed at an upper portion of the annular chamber 352 and communicating with the dirty air inlet 1, and a revolving channel outlet 354 disposed at a lower portion of the annular chamber 352 and communicating with the separation chamber 331; the revolving channel inlet 353, the revolving channel 351 and the revolving channel outlet 354 define a revolving path of the intake air, i.e., the dirty air enters from the revolving channel inlet 353, revolves out through the revolving channel 351, and enters the separation chamber 331 for cyclone separation from the revolving outlet 354. The rotary channel 351 is arranged in the rotary drum 35, so that alignment assembly and structure simplification are facilitated; and the utility model discloses utilize the connection region of superior cyclone unit and subordinate cyclone unit ingeniously, through addding the rotary drum that has gyration passageway 351, the rapid Assembly location of not only being convenient for rotary drum passageway 351, moreover because break away from in separator during this gyration passageway 351 design, gyration passageway 351 carries out independent design based on the rotary drum promptly, provides bigger degree of freedom for rotary drum passageway 351's design, like gyration channel structure, the number of turns, gyration down spin angle etc. to further promote gyration air velocity and improve first order separation efficiency. Further, a cavity cover 355 is disposed above the annular cavity 352, and is configured to cover the rotary cylinder 35 to seal the rotary channel in the annular cavity 352, and preferably, the cavity cover 355 is further provided with a wind guide pipe 356, one end of the wind guide pipe 356 is communicated with the rotary channel inlet 353, and the other end of the wind guide pipe 356 is communicated with the dirty air inlet 1.

Further, the lead of the rotational channel 351 is set to at least 1 lead, approximately 1 lead, or above 1/2 leads, wherein approximately 1 lead may be understood as slightly less than 1 lead, such as 4/5 lead, or slightly greater than 1 lead, such as 6/5 lead; by adopting the design, a sufficient swirl path is obtained under the condition of fully utilizing the area space between the upper stage cyclone separation unit 33 and the lower stage cyclone separation unit 34, and the first stage cyclone separation effect is more favorable.

The utility model discloses set up dirty air inlet 1 the region between higher level cyclone unit 33 and the subordinate's cyclone unit 34, and communicate to higher level cyclone unit 33 through gyration passageway 351, so that dirty air passes through gyration passageway 351 gyration gets into the separation chamber 331 of higher level cyclone unit 33, structural design so region between higher level cyclone unit 33 and the subordinate's cyclone unit 34 has sufficient space to set up gyration passageway 351 to can have sufficient route of circling round before letting dirty air separation, the gyration stroke is longer promptly, and the gyration air velocity of formation is higher, and dust separation's effect is better, makes first order separation efficiency higher.

The more the revolution turns of the revolution channel 351, the longer the guide air duct, the better the effect of airflow revolution, if the revolution turns are less than 1/2 turns, most of the airflow is released into the separation cavity without forming revolution in time, the airflow without forming revolution can block the free revolution of the revolution part, the revolution rate of the whole airflow is disturbed, and the revolution rate of the airflow is reduced; meanwhile, when the dirty air rotates through the rotary channel 351 from the top, the number of turns of the rotary channel is overlapped, the rotary channel forms a spiral angle with a downward angle along the direction of the longitudinal axis 31 circle by circle, the airflow with fixed rotary flow aspect breaks out a component velocity parallel to the longitudinal axis 31 on the spiral angle, and the component velocity has the capability of pushing the particles separated from the first stage to the end part of the separation cavity 331 more quickly; the end side of the separation chamber 331 does not need to additionally provide the air inlet drum 11, the structure is simplified and easy to manufacture, and the dust collecting space can be further increased. The utility model discloses the people still try to be with dirty air inlet 1 sets up separation chamber 331 is close to foul collector 32 one side, then the gyration top spin gets into in the separation chamber 331, but the space that has not only occupied foul collector 32 of so design is unfavorable for long-time album of dirt, and the collecting path that the structural part of gyration top spin lies in the granule dust of first order cyclone moreover is unfavorable for collection efficiency, can't be fast with the granule dust propelling movement of separating extremely foul collector 32 and influence separation quality promptly.

As shown in fig. 3, 4 and 8, the upper stage cyclone separating unit 33 comprises a separating chamber 331 for performing the first stage cyclone separation and a separating drum 332 arranged in the separating chamber 331, the separating chamber 331 has a longitudinal axis 31 which also defines the longitudinal axis 31 of the separating apparatus 3, and preferably, the separating chamber 331 is arranged coaxially with the separating drum 332. Wherein the separating chamber 331 includes a hollow dust collecting housing 333, and an end portion of the separating chamber 331 on a side away from the lower stage cyclone unit is provided with a dust collecting cover 334 for opening or closing the end portion, it is understood that the dust collecting cover 334 is connected to one end portion of the dust collecting housing 333, and an area enclosed by the end portion of the dust collecting housing 333 and the dust collecting cover 334 forms a collector of separated particulate dust, i.e., the dirt collector 32. The dust collection cover 334 is closed or opened with respect to the dust collection housing 333, and the opening and closing of the dust collection cover 334 may be achieved by an opening and closing cover mechanism. Specifically, the opening and closing cover mechanism includes a rotating shaft 3341, a closing member and an opening member, one side of the dust collection cover 334 is connected to the end of the dust collection housing 333 via the rotating shaft 3341, and the closing member is used for locking the dust collection cover 334 to maintain a state of closing the dust collection housing 333, that is, a closed state of collecting dirt, when the dust collection cover 334 is rotated to cover and close the end of the dust collection housing 333; the opening part serves to release the end of the dust collection cover 334 away from the dust collection housing 333 to open the dust collection housing 333, i.e., in an open state for cleaning dirt.

In this embodiment, the closing member and the opening member are integrated into one lever type opening and closing member 335, which is preferably, but not limited to, disposed outside the end of the dust collection housing 333. As shown in fig. 4, the opening and closing member 335 includes a lever 3352 coupled to the dust collecting housing 333 via a rotation shaft 3351, a catch 3353 provided at one end of the lever 3352, and a return elastic member 3354 provided between the other end of the lever 3352 and the dust collecting housing 333, and preferably, a door opening button 3355 is formed at the other end of the lever 3352 for easy recognition and quick pressing. In a specific implementation, the dust collecting cover 334 is manually rotated to abut against the hook 3353, so as to push the hook 3353 to the end of the dust collecting shell 333, and the hook 3353 hooks the dust collecting cover 334 to be in a locked and closed state due to the return action of the return elastic member 3354; when the dust cover 334 is to be opened, the open button 3355 at the other end of the lever 3352 is pressed, and the lever 3352 causes the hook 3353 to be opened to release the dust cover 334 to be opened.

Further, the separation cylinder 332 is provided with holes for allowing the dirty air which is introduced by the revolving channel 351 to revolve, and the whole airflow after the first stage cyclone separation in the separation chamber 331 passes through the holes.

When the outlet 354 of the revolving channel is disposed at the same height as the separation cylinder 332 or at the upper part of the separation cylinder 332, the space at the upper part of the separation cylinder becomes a dead space which is not used, the space for the first stage dirt collecting space becomes small, and the receiving space is affected, so that it is preferable that the outlet 354 of the revolving channel is disposed above the separation cylinder 332. Moreover, the separation cylinder 332 of the present embodiment is an integrated 360 ° air outlet design without an air inlet, so as to avoid the interference of the inlet and outlet air flows and increase the separation throughput.

As shown in fig. 3, the lower stage cyclone unit 34 is communicated with the upper stage cyclone unit 33 through a communication passage 36, that is, a part of the clean air separated by the upper stage cyclone unit 33 enters the lower stage cyclone unit 34 through the communication passage 36 for the second stage separation. Further, the lower stage cyclone unit 34 includes a body 341 and a plurality of cyclones 342 provided on the body 341, the plurality of cyclones 342 being provided around the longitudinal axis 31; as shown in fig. 3 and 8, the lower stage cyclone unit 34 further includes a dust collecting container 343 for collecting fine dust separated by the plurality of cyclones 342. One end of the dust collecting tube 343 is disposed at the dust discharge port 3421 of the plurality of cyclone 342, and the other end thereof extends through the communication passage 36 to the end of the separating chamber 331 to abut against the dust collecting cover 334 in a closed state. The area between the outside of the dust collecting cylinder 343 and the inside of the rotary cylinder 35 and the area between the outside of the dust collecting cylinder 343 and the inside of the separating cylinder 332 define the communication passage 36, so that the structure is more compact.

Further, the dust collecting housing 333 of the separating chamber 331 is detachably connected to the main body 341 of the lower stage cyclone separating unit 34, and generally, the dust inside can be dumped by opening the dust collecting cover 334 conventionally, but some residue still exists, and as the working time of the vacuum cleaner increases, the more residue is accumulated, and then the dust collecting housing 333 can be detached for complete cleaning through the detachable structure design. The detachable connection can be a snap-in connection structure, a screw-in connection structure, a snap-in connection structure and the like. In this embodiment, taking the snap-in connection structure as an example, as shown in fig. 6 to 9, a detaching member 336 is disposed outside the dust collecting housing 333, a retractable catching member 3361 is disposed on the detaching member 336, and when the dust collecting housing 333 is mounted in place, the catching member 3361 extends to catch into the catch groove to fix the dust collecting housing 333; when the dust collecting housing 333 is to be removed, the retaining switch 3362 is pressed to move the retaining member 3361 out of the slot, so that the dust collecting housing 333 can be removed.

Furthermore, as shown in fig. 8, the dust collecting sub-cylinder 3431 on the dust collecting cylinder 343 between the separating cylinder 332 and the end is detachable, so that the dust collecting sub-cylinder 3431 is convenient to detach and clean completely, the excessive dust accumulation on the cylinder wall of the dust collecting cylinder 343 is avoided, the whole dust collecting cylinder 343 is not required to be detached, and the influence of frequently detaching and attaching the dust collecting cylinder 343 on the sealing performance of the dust collector is reduced.

Further, as shown in fig. 7-9, the dirty air inlet 1 is connected to a wind inlet drum 11, which is located outside the separation chamber 331 and is arranged parallel to the longitudinal axis 31. The detaching part 336 is a U-shaped detaching part, and the U-shaped hollow part of the detaching part is convenient to penetrate through the air inlet cylinder 11. The air inlet barrel 11 is provided with a clamping groove facing the buckling piece, so that the dust collection shell 333 can be fixed conveniently.

Further, as shown in fig. 9, the vacuum cleaner further includes a handheld portion 4 and an air outlet cylinder 5, preferably but not limited to, the handheld portion 4 is a pistol-type handle, one end of which is connected to the air inlet cylinder 11, and the other end of which is connected to the air outlet cylinder 5; the air outlet cylinder 5 is pressed on the lower stage cyclone separation unit 34 and is used for communicating with the clean air outlet 2 to collect and guide out the clean air.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship 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 referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," "connected," and the like are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims (10)

1. A vacuum cleaner having a dirty air inlet (1), a clean air outlet (2) and separating apparatus (3) disposed in an air flow path from the dirty air inlet (1) to the clean air outlet (2), the separating apparatus (3) having a longitudinal axis (31) and a dirt collector (32) disposed along the longitudinal axis (31), an upper stage cyclonic separation unit (33) and a lower stage cyclonic separation unit (34), characterised in that the dirty air inlet (1) is disposed in an area between the upper stage cyclonic separation unit (33) and the lower stage cyclonic separation unit (34) and is connected to the upper stage cyclonic separation unit (33) via a turnaround channel (351) to cause dirty air to be turned downwardly via the turnaround channel (351) into a separation chamber (331) of the upper stage cyclonic separation unit (33).

2. The vacuum cleaner of claim 1, wherein the lead of the swivel channel (351) is set at least 1 lead, approximately 1 lead, or above 1/2 lead.

3. The vacuum cleaner as claimed in claim 1, wherein a communication passage (36) of the upper stage cyclone separating unit (33) and the lower stage cyclone separating unit (34) passes through the revolving passage (351).

4. The vacuum cleaner as claimed in claim 1, wherein an end of the separating chamber (331) at a side away from the lower stage cyclone separating unit is provided with a dust collection cover (334) for opening or closing the end.

5. A vacuum cleaner as claimed in claim 1, characterized in that a separating cylinder (332) is arranged in the separating chamber (331), which cylinder is arranged along the longitudinal axis (31); the separating cylinder (332) is perforated with holes for allowing dirty air entering through the revolving channel (351) to revolve downward, and part of clean air after cyclone separation in the separating chamber (331) passes through the holes.

6. The vacuum cleaner as claimed in claim 1, wherein the dust collection housing (333) of the separation chamber (331) is detachably coupled to the body (341) of the lower stage cyclone separating unit (34).

7. A vacuum cleaner as claimed in claim 3, wherein the inferior cyclonic separating unit (34) comprises a plurality of cyclonic separators (342) arranged about the longitudinal axis (31); the lower stage cyclone unit (34) further includes a dust collecting cylinder (343) for collecting fine dust separated by the plurality of cyclones (342).

8. The vacuum cleaner as claimed in claim 7, wherein the dust collecting barrel (343) extends through the communication passage (36) to an end of the separation chamber (331).

9. The vacuum cleaner as claimed in claim 7, wherein a dust collecting sub-cylinder (3431) on the dust collecting cylinder (343) between the separating cylinder (332) and the end is provided to be detachable.

10. A vacuum cleaner as claimed in claim 1, wherein an air inlet drum (11) is connected to the dirty air inlet (1), located outside the separation chamber (331) and arranged parallel to the longitudinal axis (31).

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