CN211749304U

CN211749304U - Dust removal air duct structure of dust collector

Info

Publication number: CN211749304U
Application number: CN202020072763.8U
Authority: CN
Inventors: 刘应发; 黄文�
Original assignee: Guangdong Lesheng Intelligent Technology Co ltd
Current assignee: Guangdong Lesheng Intelligent Technology Co ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-10-27
Anticipated expiration: 2030-01-14

Abstract

The utility model provides a dust removal air channel structure of a dust collector, which comprises a primary cyclone cylinder, wherein the primary cyclone cylinder comprises an upper cylinder body and a lower cylinder body, the lower cylinder body is provided with a primary separation inlet, the upper cylinder body is provided with a primary separation outlet, the primary separation inlet is communicated with the primary separation outlet, and the upper end of the upper cylinder body is provided with a sealing cover; a plurality of second grade separator drums, it is a plurality of the second grade separator drum arrange along circumference on the bottom plate of last barrel, every outer wall between the second grade separator drum and last barrel outer wall are formed with the second grade separation region, and two adjacent second grade separator drums extend and are formed with the second grade separation entry between the outermost end, the dust exhaust mouth has been seted up to the second grade separation region position in last barrel bottom plate department. The utility model discloses second grade dust removal effect is good, and difficult deposition causes the jam.

Description

Dust removal air duct structure of dust collector

Technical Field

The utility model relates to a dust catcher technical field especially relates to a dust removal wind channel structure of dust catcher.

Background

The dust collector is a cleaning electric appliance which utilizes a motor to drive a blade to rotate at a high speed, generates air negative pressure in a sealed shell, sucks dust into a dust cup, and discharges the air filtered by the dust cup at a high speed. The dust cup for filtering is a main component of the dust collector, and in order to better separate impurities such as dust and the like from air, the existing dust collector mostly adopts a cyclone dust cup for secondary separation. Air containing impurities enters the first-stage separator along the tangential direction and rotates from top to bottom, and in the rotating process, large particles and heavier impurities are larger than the air in density and lose inertia to fall into a lower dust collecting cavity to be separated from the air after colliding with the inner wall of the first-stage separator due to larger centrifugal force; the fine impurities and air enter the second-stage separator, fine dust collides with the inner wall of the second-stage separator, loses inertia and falls into a dust collecting cavity below to be separated from the air, and the clean air passes through the filtering component and is discharged into the atmosphere.

On the product of dust collector, the multi-cone cyclone separation technology is mostly adopted at present to reduce the suction loss. In order to reduce the overall height of the cyclone separator and thus reduce the waste of dirt cup volume, a secondary cyclone is usually integrated into the primary cyclone, but this results in undesirable primary separation and room for improvement.

There is a need for a novel dust removal structure that can solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a dust removal wind channel structure of dust catcher through carrying out the technological transformation to current dust catcher dirt box, has solved the not high problem of current dust removal separator dust collection efficiency.

In order to solve the technical problem, the utility model discloses specifically adopt following technical scheme:

a dust removal air channel structure of a dust collector comprises a primary cyclone, wherein the primary cyclone comprises an upper barrel and a lower barrel, the lower barrel is provided with a primary separation inlet, the upper barrel is provided with a primary separation outlet, the primary separation inlet is communicated with the primary separation outlet, and the upper end of the upper barrel is provided with a sealing cover; a plurality of second grade separator drums, it is a plurality of the second grade separator drum arrange along circumference on the bottom plate of last barrel, every outer wall between the second grade separator drum and last barrel outer wall are formed with the second grade separation region, and two adjacent second grade separator drums extend and are formed with the second grade separation entry between the outermost end, the dust exhaust mouth has been seted up to the second grade separation region position in last barrel bottom plate department.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model is suitable for a place in the dirt cup of dust catcher, the air current takes the dust to get into the whirlwind that can form the whirlwind that climbs in the one-level whirlwind section of thick bamboo after in the one-level whirlwind section of thick bamboo, because dust density is great than the air, it drops dirt cup bottom under self action of gravity, realizes dirt gas separation.

The utility model discloses it encircles and is provided with a plurality of second grade separation section of thick bamboos to be had a rich in one-level separation export air-out direction on the last barrel of one-level whirlwind section of thick bamboo, and the air current that carries the dust circles round and gets into the second grade separation region along the section of thick bamboo wall of second grade separation section of thick bamboo, is slowed down by last barrel outer wall restriction for the dust falls down along the dust exhaust mouth that last barrel outer wall set up to second grade separation region bottom under the dead weight, gets into in the dirt cup of barrel below, and the second grade dust removal effect is good, and difficult.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the installation of the closure cap of the present invention;

FIG. 3 is a top view of the upper cylinder of the present invention;

FIG. 4 is a perspective view of the upper cylinder of the present invention;

fig. 5 is a bottom view of the upper cylinder body of the present invention;

fig. 6 is a schematic perspective view of the bottom surface of the upper cylinder of the present invention.

Description of reference numerals: the device comprises a primary cyclone cylinder 1, an upper cylinder 11, a primary separation outlet 111, a bottom plate 112, a lower cylinder 12, a primary separation inlet 121, a groove 122, a sealing cover 13, a mounting frame 131, a mounting cylinder 132, a secondary separation cylinder 14, a guide baffle 141, a secondary separation area 15, a secondary separation inlet 16, a dust exhaust port 17 and an isolation cylinder 18.

Detailed Description

The following detailed description of the present invention will be made with reference to the accompanying drawings and examples.

As shown in fig. 1 to 6, the present embodiment provides a dust removing air duct structure of a vacuum cleaner, including a primary cyclone 1, where the primary cyclone 1 includes an upper cylinder 11 and a lower cylinder 12, the lower cylinder 12 has a primary separation inlet 121, the upper cylinder 11 has a primary separation outlet 111, the primary separation inlet 121 is communicated with the primary separation outlet 111, and a sealing cover 13 is installed at an upper end of the upper cylinder 11; a plurality of second grade separator drums 14, a plurality of second grade separator drums 14 arrange along circumference on the bottom plate 112 of last barrel 11, every outer wall between the second grade separator drum 14 and last barrel 11 outer wall are formed with second grade separation region 15, are formed with second grade separation entry 16 between two adjacent second grade separator drums 14 extend the outermost end, second grade separation region 15 is located last barrel 11 bottom plate 112 department and has seted up dust exhaust 17.

A plurality of secondary separation barrels 14 are arranged on an upper barrel 11 of the primary cyclone barrel 1 in a surrounding mode in the air outlet direction of a primary separation outlet 111, airflow carrying dust circles around to enter a secondary separation area 15 along the barrel wall of the secondary separation barrel 14 and is limited and decelerated by the outer wall of the upper barrel 11, and the dust falls down along the outer wall of the upper barrel 11 to a dust exhaust port 17 formed in the bottom of the secondary separation area 15 under the self-weight effect and enters a dust cup below the upper barrel 11 to be separated secondarily.

Further, in order to facilitate installation and fixation of the upper cylinder 11, a mounting frame 131 extends downward from the closing cover 13, and the upper cylinder 11 is disposed in the mounting frame 131.

Further, in order to increase the effective volume of the dust cup, a plurality of grooves 122 are formed on the peripheral wall of the lower cylinder 12, and the grooves 122 are arranged at intervals along the circumferential direction of the lower cylinder 12. The provision of the grooves 122 also reduces the velocity of the airflow at the primary separation inlet 121, increasing the effectiveness of the airflow in separating dirt from the airflow.

Further, in order to obtain a better dust collecting effect, the grooves 122 are arranged along the axial direction of the lower cylinder 12, and the positions of the grooves 122 correspond to the dust discharge ports 17 of the secondary separation area 15 one by one. The secondarily separated dust can be accumulated in the groove 122, and the volume utilization efficiency of the dust cup is increased.

Further, in order to prevent dust falling from the dust discharge port 17 from scattering around, the bottom plate 112 of the upper cylinder 11 extends downward to form a separation cylinder 18, and the dust discharge port 17 is disposed between the inner wall of the separation cylinder 18 and the outer wall of the upper cylinder 11. After falling from the dust discharge port 17, the dust is limited by the inner wall of the isolation cylinder 18 and the outer wall of the upper cylinder 11, and then falls downwards to the corresponding position of the dust cup, so that the blockage is not easy to cause.

Further, in order to make the air flow direction entering the secondary separation area 15 more consistent and avoid the air flow from being disturbed, the secondary separation cylinder 14 is arranged around the axis of the upper cylinder 11 in a petal-shaped surrounding manner along the air outlet direction of the primary separation outlet 111, and the opening direction of the secondary separation inlet 16 is consistent with the air outlet direction of the primary separation outlet 111. The airflow direction entering the secondary separation inlet 16 from the annular cavity is inconsistent and extremely turbulent, the airflow with different directions passes through the guiding function of the secondary inlet before entering the secondary separation area 15, the airflow direction is changed to be more consistent, and the airflow enters the secondary separation area 15 along the tangential direction of the secondary separation barrel 14, so that the influence on the separation efficiency due to the turbulence after the airflow enters the secondary separation area 15 is avoided.

Further, in order to obtain better secondary dust removal effect, the cross section of the secondary separating cylinder 14 is an irregular flat elliptic section. The second grade separator cylinder 14 that the cross-section is flat ellipse form has better space utilization than the drum, can set up more quantity on last barrel 11 to separate out more second grade separation region 15, obtain better dust removal effect, the cross-section is flat ellipse form 14 outer wall curves of second grade separator cylinder is more soft simultaneously, and the air current is better along 14 outer wall direction effects of second grade separator cylinder.

Further, in order to obtain a better airflow guiding effect, the second-stage separation cylinder 14 is further provided with a guiding baffle 141 at the outer wall of the outermost end extending outwards along the axis of the upper cylinder 11, the guiding baffle 141 is obliquely arranged towards the air outlet direction of the first-stage separation outlet 111, and the guiding baffle 141 and the outer peripheral wall of the adjacent second-stage separation cylinder 14 limit the air inlet direction of the second-stage separation inlet 16 together. The airflow direction entering the secondary separation inlet 16 from the annular cavity is inconsistent and extremely turbulent, and the airflow with different directions passes through the guide baffle 141 at the secondary inlet and the guide effect of the outer wall of the secondary separation barrel 14 before entering the secondary separation area 15, so that the airflow directions are consistent, and the dust removal effect is improved.

Further, in order to prevent dust from accumulating in the secondary separation region 15 between the secondary separation cylinder 14 at the farthest end in the air outlet direction of the primary separation outlet 111 and the preceding secondary separation cylinder 14, the guiding baffle plate 141 is not provided in the secondary separation cylinder 14 at the farthest end in the air outlet direction of the primary separation outlet 111. The airflow is decelerated for multiple times, and the flow velocity is low when the airflow reaches the secondary separation area 15 at the secondary separation barrel 14 at the farthest end, so that the guiding baffle plate 141 is not arranged to further guide and decelerate the airflow, and dust is prevented from being accumulated at the inlet of the secondary separation area 15 directly.

Furthermore, in order to facilitate the installation and fixation of the closing cap 13, an installation cylinder 132 is provided in the chamber of the secondary separation cylinder 14 and extends from the closing cap 13 into the chamber, and the installation cylinder 132 can be attached to the inner wall of the secondary separation cylinder 14. After the installation cylinder 132 extends into the secondary separation cylinder 14, the installation and the positioning of the closing cover 13 can be synchronously realized, and the sealing effect is better.

In the embodiment, a plurality of secondary separation drums 14 are arranged on the upper cylinder body 11 of the primary cyclone drum 1 in a surrounding manner around the air outlet direction of the primary separation outlet 111, the airflow carrying dust circles around and enters the secondary separation area 15 along the cylinder wall of the secondary separation drum 14, and is limited by the outer wall of the upper cylinder body 11 to decelerate, so that the dust falls down along the outer wall of the upper cylinder body 11 to the dust discharge port 17 arranged at the bottom of the secondary separation area 15 under the self-weight, enters the dust cup below the upper cylinder body 11, the secondary dust removal effect is good, and the dust is not easy to accumulate to cause blockage.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts ripe bolt, rivet among the prior art. The conventional means such as welding, machines, parts and equipment are of the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the details are not described.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or through an intermediary, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.

Claims

1. A dust removal air channel structure of a dust collector is characterized by comprising a primary cyclone, wherein the primary cyclone comprises an upper cylinder and a lower cylinder, the lower cylinder is provided with a primary separation inlet, the upper cylinder is provided with a primary separation outlet, the primary separation inlet is communicated with the primary separation outlet, and the upper end of the upper cylinder is provided with a sealing cover; a plurality of second grade separator drums, it is a plurality of the second grade separator drum arrange along circumference on the bottom plate of last barrel, every outer wall between the second grade separator drum and last barrel outer wall are formed with the second grade separation region, and two adjacent second grade separator drums extend and are formed with the second grade separation entry between the outermost end, the dust exhaust mouth has been seted up to the second grade separation region position in last barrel bottom plate department.

2. The structure of claim 1, wherein the cover is provided with a mounting frame extending downward, and the upper cylinder is disposed in the mounting frame.

3. The structure of claim 1, wherein the peripheral wall of the lower cylinder has a plurality of grooves spaced along the circumference of the lower cylinder.

4. The dust removing air duct structure of the vacuum cleaner as claimed in claim 3, wherein the grooves are arranged along an axial direction of the lower cylinder, and the positions of the grooves correspond to the dust discharging ports of the secondary separation region one by one.

5. The structure of claim 4, wherein the bottom plate of the upper cylinder extends downward to form a separation cylinder, and the dust outlet is disposed between an inner wall of the separation cylinder and an outer wall of the upper cylinder.

6. The structure of claim 1, wherein the secondary separation cylinder is arranged around the axis of the upper cylinder in a petal-shaped manner along the air outlet direction of the primary separation outlet, and the opening direction of the secondary separation inlet is consistent with the air outlet direction of the primary separation outlet.

7. The structure of claim 6, wherein the secondary separating cylinder has an irregular flat elliptic cross section.

8. The dust removing air duct structure of the dust collector as claimed in claim 7, wherein a guiding baffle is further disposed at an outer wall of an outermost end of the secondary separating cylinder extending outwards along the axis of the upper cylinder, the guiding baffle is disposed obliquely to an air outlet direction of the primary separating outlet, and the guiding baffle and an outer peripheral wall of an adjacent secondary separating cylinder limit an air inlet direction of the secondary separating inlet together.

9. The structure of claim 8, wherein no guide baffle is provided in the secondary separation cylinder furthest in the direction of the air outlet from the primary separation outlet.

10. The dust removing air duct structure of the dust collector as claimed in claim 1, wherein the sealing cover is provided with a mounting cylinder extending into the cavity of the secondary separating cylinder, and the mounting cylinder can be attached to the inner wall of the secondary separating cylinder.