CN218074784U - Dust collecting device of handheld dust collector - Google Patents

Abstract

The utility model aims at providing a dust collecting device of hand-held type dust catcher, including dirt cup and dirt gas separator, be the dust collection chamber between dirt cup and the dirt gas separator, dirt cup bottom portion through the intake pipe with dirt gas separator intercommunication, it has a plurality of filtration holes, its characterized in that to distribute on the dirt gas separator: the dust collecting cavity is internally provided with a cyclone structure, the cyclone structure comprises a body arranged at a dust outlet of the dust-gas separator and a spiral guide structure arranged on the outer edge of the body, the dust outlet of the dust-gas separator extends to the bottom of the dust cup, the guide structure divides the dust collecting cavity into an upper cavity and a lower cavity, and the upper cavity and the lower cavity are communicated through the guide structure to form a dust sinking channel. Through the improvement of structure, cut off the dust collecting chamber, avoided anti-ash phenomenon, reduce the cleanness or the change to the filter screen ware, promote user experience.

Description

Dust collecting device of handheld dust collector

Technical Field

The utility model relates to a hand-held type dust catcher especially relates to a dust collecting device of hand-held type dust catcher.

Background

Most of dust collectors on the market at present adopt a cyclone structure to filter dust, the operating principle of the cyclone type dust filtering collector is that an impeller is driven by a motor to rotate at a high speed to discharge air in a sealed shell of the dust collector, dust and air in an air inlet are sucked together by pressure difference, the dust is pressed to the bottom of a dust cup of the dust collector under the action of centrifugal force, and the air is discharged after filtering.

However, the conventional vacuum cleaner has low efficiency in terms of dust collection and separation efficiency, and cannot perform an effective bottom-sinking function for inflow dust, and the dust can follow the continuous rotation of the cyclone, so that it is difficult to stably collect the dust and the like, thereby causing low dust collection efficiency. For this reason, the separator that has the deflector has appeared, like chinese utility model 201520362486.3 discloses "a dust collecting device for dust catcher and have its dust catcher", wherein, be equipped with in the dirt cup along the circumference spiral downwardly extending of dirt cup is used for guiding the guide structure that contains the dirt air current to flow down, guide structure is wind-guiding protruding muscle or wind-guiding recess, and this guide structure can lead to containing the dirt air current (especially wherein dust) for dust etc. that get into in the collection dirt intracavity can be piled up in the bottom in dust collecting cavity fast, thereby improves collection dirt efficiency.

As described above, although the guide structure guides the dust-containing airflow, because the whole dust collecting cavity is a cavity which is through from top to bottom, the disturbed airflow inevitably lifts the dust below, i.e. the so-called dust-reflecting phenomenon, especially in the handheld dust collector which is small in size and limited in the inner cavity, because the axial distance of the dust collecting cavity is small, the pressed dust is close to the air outlet, the dust-reflecting phenomenon is particularly serious, thereby directly affecting the filtering effect, easily blocking the filtering net, needing to be cleaned frequently or replacing the filtering net, and the user experience is not good.

Disclosure of Invention

The utility model aims at providing a dust collecting device of hand-held type dust catcher through the improvement of structure, has cut off the dust collecting chamber, avoids anti-grey phenomenon, reduces the cleanness or the change to the filter screen ware, promotes user experience.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a dust collecting device of hand-held type dust catcher, includes dirt cup and dirt gas separator, be the dust collection chamber between dirt cup and the dirt gas separator, dirt cup bottom through the intake pipe with dirt gas separator intercommunication, it has a plurality of filtration pores to distribute on the dirt gas separator, the dust collection intracavity is provided with a cyclone structure, this cyclone structure including set up in the body in dirt gas separator dust exit to and set up in the spiral guide structure of body outer fringe, from dirt gas separator dust exit to the extension of dirt cup bottom is arranged, guide structure will the dust collection chamber is separated for last cavity and lower cavity two parts, go up the cavity and form the dust passageway that sinks through guide structure intercommunication between the cavity down.

In the technical scheme, the body is of a hollow sleeve structure and is sleeved outside the air inlet pipe, and the upper end face of the body is fixedly inserted into the bottom of the dust-gas separator.

In the above technical scheme, the guide structure extends outwards from the outer edge surface of the body to the inner wall of the dust cup, and the outer end surface of the spiral sheet structure is matched with the inner wall of the dust cup.

Among the above-mentioned technical scheme, dirt gas separator includes the separation cavity with the intake pipe intercommunication to and be used for the filterable filter core of air current, evenly arranged on the chamber wall of separation cavity the gas filtration hole, be exhaust passage between separation cavity and the dirt cup inner wall, the exit of this passageway is provided with the filter core, from the gas filtration hole discharge gas flow through to the external world discharge behind the filter core.

In the technical scheme, a notch is formed in a dust outlet of the dust-gas separator, a slot is formed in the side wall of the notch, a dust blocking sheet corresponding to the notch is arranged on the body, a protrusion matched with the slot is formed in the side edge of the dust blocking sheet, and the dust blocking sheet and the slot are connected in a clamping manner; the front end of the air inlet pipe is abutted to the lower side of the dust blocking sheet, and the arc-shaped inner wall of the dust blocking sheet is matched with the pipe wall of the air inlet pipe.

The technical scheme is that a positioning groove is formed in the bottom end face of the dust-gas separator, a positioning column matched with the positioning groove is arranged on the connecting end face of the body and the dust-gas separator, and the positioning column and the positioning groove are matched to form radial positioning.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1. the utility model discloses set up the whirlwind structure on the intake pipe, the dusty air current that discharges from the export of dust and gas separator passes through the whirlwind structure, gets into the dust collecting cavity, and the guide structure in the whirlwind structure divides the dust collecting cavity into upper and lower cavity, and only the guide structure between the two is the only passageway (the outer fringe face of guide structure cooperates with the dirt cup inner wall), thereby avoid falling into the dust and gas separation efficiency and effect of dust collecting cavity bottom to be sucked back into the dust and gas separator once more, alleviate, slow down the filter orifice blocking phenomenon;

2. the body of the cyclone structure is of a sleeve structure, and is in plug-in fit with the positioning groove in the dust-gas separator through the positioning column on the end face, so that the assembly and disassembly are convenient; a dust blocking sheet is arranged on a notch at a dust outlet of the dust-gas separator, and the side wall of the dust blocking sheet is matched with the slot on the wall of the notch, so that the combination stability of the cyclone structure and the dust-gas separator is improved on one hand, and the dust return phenomenon that part of dust enters the air channel of the guide structure is blocked on the other hand, and the dust separation effect is further improved;

3. the guide structure of the spiral piece structure divides the dust collection cavity into an upper cavity and a lower cavity, the relatively independent guide channel becomes a one-way air channel, the upper cavity and the lower cavity separate dust return falling into the bottom of the dust cup, the blockage of a filter element or a filter screen is reduced, the frequency of replacing the filter material is reduced, the use cost of consumable materials of the dust collector is reduced, and meanwhile, the cleaning effect is better;

4. the utility model discloses simple structure easily realizes.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is a schematic view of an exploded structure of a cyclone structure and a dust-gas separator according to an embodiment of the present invention;

FIG. 3 is a schematic view of the combined structure of FIG. 2;

fig. 4 is a schematic half-section view of the first embodiment of the present invention.

Wherein: 1. a dust cup; 2. a dust-gas separator; 3. a dust collection chamber; 4. an air inlet pipe; 5. an air inlet end; 6. an air outlet end; 7. air filtering holes; 8. a cyclone structure; 9. a body; 10. a spiral guide structure; 11. an upper cavity; 12. a lower cavity; 13. a positioning column; 14. positioning a groove; 15. a notch; 16. a slot; 17. a dust-blocking sheet; 18. a separation chamber; 19. a filter element; 20. exhaust passage

Detailed Description

The invention will be further described with reference to the following drawings and examples:

referring to fig. 1-4, a dust collecting device of a handheld vacuum cleaner comprises a dust cup 1 and a dust-gas separator 2, a dust collecting cavity 3 is arranged between the dust cup 1 and the dust-gas separator 2, an air inlet pipe 4 is divided into an air inlet end 5 and an air outlet end 6, the air inlet end 5 extends out of the bottom of the dust cup 1, and the air outlet end 6 of the air inlet pipe 4 is close to the upper end surface of the dust-gas separator 2. The bottom of the dust cup 1 is communicated with the dust-gas separator 2 through an air inlet pipe 4, air and dust form cyclone through air negative pressure, the cyclone is sucked from an air inlet end 5 of the air inlet pipe 4, and the cyclone rises to an air outlet end 6 of the air inlet pipe 4 and then reaches the inside of the dust-gas separator 2.

A plurality of air filtering holes 7 are distributed on the dust-gas separator 2. The air is discharged through the filtering air holes 7. Be provided with a cyclone structure 8 in the dust collecting cavity 3, this cyclone structure 8 including set up in body 9 in 2 dust exit of dust and gas separator to and set up in the spiral guide structure 10 of body 9 outer fringe, cyclone structure 8 from 2 dust exit of dust and gas separator to the extension of dirt cup 1 bottom is arranged, spiral guide structure 10 will the dust collecting cavity is separated for last cavity 11 and lower cavity 12 two parts, goes up cavity 11 and is close to the end 6 of giving vent to anger of intake pipe 4, and lower cavity 12 is close to the inlet end 5 of intake pipe 4, go up cavity 11 and lower cavity 12 between communicate through spiral guide structure 10, form dust and sink the passageway.

Referring to FIGS. 2-3: the body 9 is of a hollow sleeve structure and is sleeved outside the air inlet pipe 4, a positioning column 13 is arranged on the connecting end face of the body 9 and the dust-gas separator 2, a positioning groove 14 matched with the positioning column 13 is arranged on the bottom end face of the dust-gas separator 2, and the positioning column 13 and the positioning groove 14 are matched to form radial positioning. The upper end of the body 9 and the bottom end surface of the dust-gas separator 2 are fixed in an inserting way after being radially positioned. A gap 15 is formed at a dust outlet of the dust-gas separator 2, and after dust and air are separated through the dust-gas separator 2, airflow with dust is discharged from the outlet of the dust-gas separator 2 and thrown into the bottom of the dust cup 1 along the spiral guide structure 10. The side wall of the gap 15 is provided with a slot 16, and the body 9 is provided with a dust blocking sheet 17 corresponding to the gap 15 to prevent dust at the outlet from overflowing. The side edge of the dust blocking sheet 17 is provided with a bulge matched with the slot 16, and the dust blocking sheet 17 is connected with the side wall of the dust-gas separator 2 in a card inserting connection mode; the air outlet end 6 of the air inlet pipe 4 is abutted to the lower side of the dust blocking sheet 17, and the arc-shaped inner wall of the dust blocking sheet 17 is matched with the pipe wall of the air inlet pipe 4 to form part of the air inlet pipe 4.

Referring to fig. 4: spiral guide structure 10 certainly outwards extend to on the outer fringe face of body 9 the dirt cup 1 inner wall, and spiral guide structure 10's outer terminal surface with the cooperation of dirt cup 1 inner wall is divided into two cavities with dirt cup 1. The dust-gas separator 2 comprises a separation chamber 18 communicated with the gas outlet end 6 of the gas inlet pipe 4 and a filter element 19 for filtering gas flow, the gas filtering holes 7 are uniformly distributed on the wall of the separation chamber 18, an exhaust passage 20 is arranged between the separation chamber 18 and the inner wall of the dust cup 1, the filter element 19 is arranged at the outlet of the exhaust passage 20, and gas flowing out of the gas filtering holes 7 flows through the filter element 19 and then is discharged to the outside.

Claims (6)

1. The utility model provides a dust collecting device of hand-held type dust catcher, includes dirt cup and dirt gas separator, be the dust collecting cavity between dirt cup and the dirt gas separator, dirt cup bottom through the intake pipe with dirt gas separator intercommunication, it has a plurality of filtration holes to distribute on the dirt gas separator, its characterized in that: the dust collecting cavity is internally provided with a cyclone structure, the cyclone structure comprises a body arranged at a dust outlet of the dust-gas separator and a spiral guide structure arranged on the outer edge of the body, the dust outlet of the dust-gas separator extends to the bottom of the dust cup, the guide structure divides the dust collecting cavity into an upper cavity and a lower cavity, and the upper cavity and the lower cavity are communicated through the guide structure to form a dust sinking channel.

2. The dust collecting apparatus of a hand-held cleaner according to claim 1, wherein: the body is of a hollow sleeve structure and is sleeved outside the air inlet pipe, and the upper end face of the body is fixedly inserted with the bottom of the dust-gas separator.

3. The dust collecting apparatus of a hand-held cleaner according to claim 1, wherein: the guide structure extends outwards to the inner wall of the dust cup from the outer edge surface of the body, and the outer end surface of the spiral sheet structure is matched with the inner wall of the dust cup.

4. The dust collecting apparatus of a hand-held cleaner according to claim 1, wherein: the dust and gas separator comprises a separation chamber communicated with the air inlet pipe and a filter element for filtering air flow, wherein the air filtering holes are uniformly arranged on the wall of the separation chamber, an exhaust passage is arranged between the separation chamber and the inner wall of the dust cup, and the outlet of the passage is provided with the filter element, so that exhaust air from the air filtering holes flows through the filter element and then is discharged to the outside.

5. The dust collecting apparatus of a hand-held cleaner as claimed in claim 1, wherein: a notch is formed in a dust outlet of the dust-gas separator, a slot is formed in the side wall of the notch, a dust blocking piece corresponding to the notch is arranged on the body, a protrusion matched with the slot is arranged on the side edge of the dust blocking piece, and the dust blocking piece and the slot are connected in a clamping manner; the front end of the air inlet pipe is abutted against the lower side of the dust blocking sheet, and the arc-shaped inner wall of the dust blocking sheet is matched with the pipe wall of the air inlet pipe.

6. The dust collecting apparatus of a hand-held cleaner according to claim 5, wherein: the bottom end face of the dust-gas separator is provided with a positioning groove, the connecting end face of the body and the dust-gas separator is provided with a positioning column matched with the positioning groove, and the positioning column and the positioning groove are matched to form radial positioning.

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