CN110946505A

CN110946505A - Vacuum cyclone separation dust collecting device and dust collector

Info

Publication number: CN110946505A
Application number: CN201911103810.9A
Authority: CN
Inventors: 林有余; 刘楷; 汪洋
Original assignee: Jiangsu Sumec Hardware and Tools Co Ltd
Current assignee: Jiangsu Sumec Hardware and Tools Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-04-03

Abstract

The invention discloses a vacuum cyclone separation dust collecting device and a dust collector.A revolving body I is arranged in a dust collecting cup, a cyclone channel I is formed between the revolving body I and the dust collecting cup, an area in the dust collecting cup, which is close to the cup bottom, is used for forming a dust collecting area I, a plurality of movable blocking pieces are arranged on a channel between the cyclone channel I and the dust collecting area I, and the pivoting ends of the movable blocking pieces are pivoted on the outer wall of the revolving body I; when the dust collecting cup is in an initial state, the free end of the movable blocking piece naturally droops towards the direction of the dust collecting area I under the action of gravity, and when the dust collecting cup changes from the initial state to one side in an inclined mode, the free end of the movable blocking piece freely rotates around the pivot axis of the pivot end under the action of gravity until the free end is lapped on the inner wall of the dust collecting cup, so that large-particle dust in the dust collecting area I is prevented from entering the cyclone passage I. The movable blocking piece can be automatically adjusted along with the change of the posture of the dust collecting device, so that dust in the dust collecting area I is blocked, the dust is prevented from approaching a separation area, the separation effect is guaranteed, and blockage is avoided.

Description

Vacuum cyclone separation dust collecting device and dust collector

Technical Field

The invention belongs to the technical field of dust removing equipment, and particularly relates to a vacuum cyclone separation dust collecting device and a dust collector.

Background

Along with the increasing requirements of people on living environment and household sanitation, dust removal becomes an important cleaning task for daily cleaning, and the dust collector has the advantages of simplicity in operation, high working efficiency, low labor intensity and the like, has gone into thousands of households as a household cleaning appliance and is popular with people.

A vacuum cleaner generally has a cyclone dust collecting apparatus, which is a cleaning appliance that separates dust in a dust cup by generating vacuum negative pressure in a sealed housing by rotating a motor with a rotor at a high speed, and discharges air filtered through the dust cup at an extremely high speed. At present, vacuum cyclone dust catcher gradually becomes the market mainstream, the better separation of impurity such as dust and air has been realized, the air that contains impurity gets into cyclone dust cup along tangential direction, the air current is the screw motion from top to bottom, in the screw motion in-process, vacuum degree is higher and higher, the large granule, heavier impurity begins to sink under gravity and centrifugal force effect, thereby the large granule, heavier impurity is separated and collected in the dust cup bottom, thinner impurity gets into inside second grade separation channel along with upper portion air current after filtering, tiny dust is separated the bottom that descends to interior dust cup down once more along with the air current flow process, and clean air discharges in the atmosphere after filtering once more.

From the principle of the cyclone dust collecting apparatus, it is known that when the cyclone dust collecting apparatus is in a vertical position and the dust cup is at the bottom, the dust separating effect is most obvious, and in practical use, we find that the cyclone dust collecting apparatus in the vacuum cleaner can change with the position of the vacuum cleaner due to the need of cleaning dust at different positions, for example, the cyclone dust collecting apparatus is often inclined, or is in a horizontal position, or even is in an upside-down position with the dust cup facing upwards. When the bottom of the dust cup is turned from bottom to top, the collected dust in the dust cup can slide to the separation channel again under the action of gravity, so that secondary pollution is caused, a large amount of dust is accumulated on the periphery of the filter screen, the filter screen can be blocked, and the motor is easy to burn and the like.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a vacuum cyclone separation dust collecting device and a dust collector, which can prevent collected dust from returning to a separation area again to influence the separation effect.

In order to solve the problems of the prior art, the invention discloses a vacuum cyclone separation dust collecting device, which comprises a dust collecting cup with a dirty air inlet and a clean air outlet; a revolving body I is arranged in an air flow path from the dirty air inlet to the clean air outlet in the dust collection cup, an interlayer between the revolving body I and the dust collection cup is used for forming a cyclone channel I, an area close to the cup bottom in the dust collection cup is used for forming a dust collection area I, a plurality of movable blocking pieces are arranged on a channel between the cyclone channel I and the dust collection area I, and each movable blocking piece is provided with a pivoting end and a free end opposite to the pivoting end; the pivoting end of the movable baffle is pivoted to the outer wall of the revolving body I; when the dust collection cup is in an initial state, the free end of the movable blocking piece naturally droops towards the dust collection area I under the action of gravity, and when the dust collection cup changes from the initial state to one side in an inclined manner, the free end of the movable blocking piece freely rotates around the pivot axis of the pivot end under the action of gravity until being lapped on the inner wall of the dust collection cup, so that large dust particles in the dust collection area I are prevented from entering the cyclone channel I; the initial state of the dust collecting cup is a state that the cup mouth is vertically upward and the cup bottom is vertically downward.

Further, when the dust collecting cup is changed from the inclined state to the initial state, the free end of the movable baffle rotates freely around the pivot axis of the pivot end under the action of gravity to be far away from the inner wall of the dust collecting cup, so that large particles of dust in the cyclone passage I can enter the dust collecting area I.

Furthermore, a revolving body II with an inner revolving part and an outer revolving part is arranged in the revolving body I, an interlayer between the inner revolving part and the outer revolving part is used for forming a cyclone passage II, and a dust collecting area II is arranged below the cyclone passage II; the bottom of the inner revolving part is provided with a secondary separation outlet for air to flow from the cyclone channel II to the inside of the inner revolving part, a secondary separation inlet is arranged on the outer revolving part of the revolving body II and close to the top of the revolving body II, and the inside of the inner revolving part is connected with the clean air outlet.

Further, the bottom of the revolving body I is closed, and the dust collecting area II is formed inside the revolving body I; and a circle of enclosure is further arranged between the cyclone channel II and the dust collecting area II, the enclosure is connected with the revolving body I to form an isolation area, and when the dust collecting cup is inclined to one side from an initial state, fine dust in the dust collecting area II can slide to the isolation area to be prevented from entering the cyclone channel II.

Further, the secondary separation inlet is arranged along the tangential direction of the cyclone passage II.

Furthermore, the part of the revolving body I corresponding to the cyclone passage I is a conical structure, and the diameter of the conical structure is reduced from top to bottom in sequence.

Furthermore, a filter screen for filtering air flowing from the cyclone channel I to the inside of the revolving body I is arranged on the wall of the revolving body I.

Furthermore, the dust collecting cup comprises a cup body, a top cover and a bottom cover, wherein two ends of the cup body are opened, the top cover is arranged at the opening at the top of the cup body in a sealing manner, and the bottom cover is arranged at the opening at the bottom of the cup body in a sealing manner; the dirty air inlet is arranged on the cup body, and the clean air outlet is arranged on the top cover.

Furthermore, a filter body is arranged at a clean air outlet of the top cover, and the bottom cover is connected with the bottom of the revolving body I in a sealing manner.

The invention provides a dust collector which comprises a machine body and a dust collecting device arranged in the machine body, wherein the dust collecting device is the vacuum cyclone separation dust collecting device.

The invention has the following beneficial effects: the movable separation blade in the dust collecting device can be automatically adjusted along with the change of the posture of the dust collecting device, so that dust in the dust collecting area I is blocked, the dust is prevented from being close to a separation area, the separation effect is ensured, the filter screen is prevented from being blocked, and similarly, the enclosure below the cyclone channel II effectively prevents the dust in the dust collecting area II from entering the cyclone channel II to form secondary pollution, thereby ensuring the effective exertion of the cyclone separation effect and improving the reliability of equipment.

Drawings

FIG. 1 is a perspective view showing the construction of a vacuum cyclone dust collecting apparatus according to the present invention;

fig. 2 is a perspective sectional view of the vacuum cyclone dust collecting apparatus shown in fig. 1;

FIG. 3 is an exploded perspective view of the vacuum cyclone dust collecting apparatus shown in FIG. 1;

fig. 4 is a perspective sectional view of the vacuum cyclone dust collecting apparatus shown in fig. 1 in an initial state;

FIG. 5 is a cross-sectional view of the structure taken along line A-A of FIG. 4;

FIG. 6 is a schematic view of the vacuum cyclone dust collecting apparatus shown in FIG. 5 rotated to a horizontal position;

fig. 7 is a schematic view illustrating the vacuum cyclone dust collecting apparatus shown in fig. 5 rotated to an upside down position.

Reference numerals:

1 dust collecting cup; 2 a rotator I; 3 a revolving body II; 4 a dirty air inlet; 5 cleaning the air outlet; 6, a movable baffle plate; 7, a pin shaft; 8, filtering a screen; 9 a filter body; 10, a top cover; 11 a bottom cover; 12 vacuum cyclone separating dust collector; 13 large particle dust; 14 an elastomeric seal I; 15 fine dust; 16 elastic sealing element II; 17 a secondary separation inlet; 18 a secondary separation outlet; 100 cyclone channels I; 200 cyclone channel II; 300 a dust collecting area I; 400 dust collecting area II; 500 isolation regions; the direction indicated by the arrow in the drawing is the air flow direction.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The invention provides a dust collector which comprises a machine body, a dust collecting pipe, a suction impeller device and a separation dust collecting device. The air suction impeller device and the separation dust collecting device are arranged in the machine body, the brush head device is installed at one end of the dust suction pipe, the other end of the dust suction pipe is connected with a dirty air inlet of the separation dust collecting device, and a clean air outlet of the separation dust collecting device is connected with the air suction impeller device.

As shown in fig. 1 to 4, the dust separating and collecting apparatus 12 of the present invention comprises a dust cup 1 having a dirty air inlet 4 and a clean air outlet 5; a revolving body I2 is arranged in an air flow path from a dirty air inlet 4 to a clean air outlet 5 in the dust cup 1, an interlayer between the revolving body I2 and the dust cup 1 is used for forming a cyclone channel I100, the revolving body I2 is provided with a filter screen 8 for filtering air flowing from the cyclone channel I100 to the inside of the revolving body I2, and the area in the cyclone channel I100, which is close to the cup bottom of the dust cup 1, is used for forming a dust collection area I300. The suction impeller device generates negative pressure suction force to suck the dirty air into the dust collecting cup 1 from the dirty air inlet 4, and then forms a downward spiral motion along the circumferential direction of the revolving body I2, in the process, large-particle dust 13 in the dirty air falls down in the dust collecting area I300 below under the blockage of the filter screen 8, and the rest dust passes through the filter screen 8 together with the air to be separated for the second time. Therefore, when the dust cup 1 is tilted or turned upside down from the initial state, the large particles 13 in the dust collecting region I300 slide to the cyclone passage I100, thereby interfering with the separation process at the filter screen 8 and further blocking the meshes of the filter screen 8. Therefore, a plurality of movable blocking pieces 6 are arranged in the cyclone channel I100 along the periphery of the revolving body I2, each movable blocking piece 6 is provided with a pivoting end and a free end opposite to the pivoting end, the pivoting end of each movable blocking piece 6 is pivotally connected and fixed on the periphery of the revolving body I2 through a pin shaft 7, and the free end can freely rotate around the pivoting axis of the pin shaft 7. When the dust cup 1 is in the initial state, the free end of the movable baffle 6 naturally droops towards the dust collection area I300 under the action of gravity, and when the dust cup 1 changes from the initial state to one side in an inclined manner, the free end of the movable baffle 6 freely rotates around the pivot axis of the pivot end under the action of gravity until the free end is lapped on the inner wall of the dust cup 1, so as to prevent large-particle dust 13 in the dust collection area I300 from entering the cyclone passage I100. The initial state of the dust cup 1 is a state in which the cup mouth is directed vertically upward and the cup bottom is directed vertically downward.

As shown in fig. 6 and 7, when the vacuum cyclone dust collecting device 12 is tilted or inverted, the free end of a part of the movable blocking piece 6 which is lower in the gravity direction rotates around the pin 7 under the action of gravity and is overlapped on the inner circumferential surface of the dust collecting cup 1, so that the path between the dust collecting area I300 and the cyclone channel I100 is blocked, large-particle dust 13 cannot slide into the cyclone channel I100, the interference on the separation process of the filter screen 8 is avoided, and the reliability of the dust collector is improved. It should be noted that the free ends of the remaining movable blocking pieces 6 also rotate around the pin 7 under the action of gravity and overlap the outer peripheral surface of the rotator I2, so that the space between the cyclone passage I100 and the dust collection area I300 is not blocked, but the large dust particles 13 are also gathered towards the bottom under the action of gravity, and therefore do not enter the cyclone passage I100 through the area communicated with the upper part.

Similarly, when the vacuum cyclone dust collector 12 is restored, the free end of the movable blocking piece 6 hangs down relative to the pivot end under the action of gravity and is away from the inner circumferential surface of the dust cup 1, so that the large particles 13 in the cyclone passage I100 can slide to the dust collecting region I300.

As shown in fig. 3 to 5, in one embodiment, a revolving body II3 having an inner revolving part 21 and an outer revolving part 20 is provided in the revolving body I2, the tops of the inner and outer revolving

parts

21 and 20 are integrally connected, and a sandwich layer therebetween is used to form a cyclone passage II200, and a dust collecting region II400 is provided below the cyclone passage II 200. The bottom of the rotary body I2 is closed to form a dust collecting region II400 therein. It should be noted that, a sealing arrangement is required between corresponding parts between the revolving body I2 and the revolving body II3, so as to meet the purpose of cyclone separation, but the specific sealing form is a conventional means, and thus, is not described in detail. The bottom of the inner revolving part 21 is provided with a secondary separation outlet 18 for air to flow from the cyclone passage II200 to the inside of the inner revolving part 21, the outer revolving part 20 of the revolving body II3 is provided with a secondary separation inlet 17 at a position close to the top of the revolving body II3, and the inside of the inner revolving part 21 is connected with the clean air outlet 5. It should be noted that in the axial direction of the dust cup 1, the secondary separation inlet 17 is near the top of the cup and the secondary separation outlet 18 is near the bottom of the cup, so that the cyclone passage II200 has a longer axial dimension, which helps to separate dust completely.

After entering the cyclone passage II200 through the secondary separation inlet 17, the air filtered by the filter screen 8 will continue to move toward the secondary separation outlet 18 under the action of negative pressure suction force, then enter the inner revolving part 21 through the secondary separation outlet 18, and finally be discharged through the clean air outlet 5. During the air entering the inner rotary part 21 from the secondary separation outlet 18, the fine dust 15 in the air falls down into the dust collection area II400 by gravity to complete the secondary separation. As in the previous case, when the vacuum cyclone dust collecting apparatus 12 is toppled or inverted, the fine dust 15 in the dust collecting region II400 will slide down into the cyclone passage II200 and further enter the inner revolving portion 21 through the secondary separation outlet 18, thereby interfering with the secondary separation process, even blocking the filter 9 at the clean air outlet 5, increasing the load of the suction impeller apparatus, and causing equipment failure and damage. For this purpose, a ring of enclosure 19 is further provided between the cyclone passage II200 and the dust collecting region II400, and the enclosure 19 is connected with the rotator I2 and forms an isolation region 500 capable of preventing the fine dusts 15 in the dust collecting region II400 from sliding into the cyclone passage II200 when the posture of the vacuum cyclone dust collecting apparatus 12 changes. As shown in fig. 6 and 7, when the vacuum cyclone dust collecting device 12 is toppled or inverted, the fine dusts 15 in the dust collecting region II400 slide down to the isolation region 500 along the inner peripheral surface of the bottom of the rotator I2 under the action of gravity, and cannot pass through the baffle 19 to enter the cyclone passage II200, so that the secondary separation effect is ensured, and the reliability of the device is improved. The enclosure 19 may be a tapered structure with a large upper part and a small lower part, or may be a revolving structure with a horizontal ring surface at the upper part and a vertical cylindrical surface at the lower part.

As shown in fig. 5, in one embodiment, the secondary separation inlet 17 is disposed in a tangential direction of the cyclone passage II 200. Thus, the air inlet can generate spiral motion better, and the separation effect is guaranteed.

In one embodiment, the part of the revolution body I2 corresponding to the cyclone passage I100 is a conical structure, the diameter of the conical structure is reduced from top to bottom, and the filter screen 8 is arranged on the conical wall of the revolution body I2.

As shown in fig. 3 and 4, in order to facilitate cleaning of dust in the dust collecting region I300 and the dust collecting region II400, the dust cup 1 is designed to be of a split structure, and in one embodiment, the dust cup 1 includes a cup body 22, a top cover 10 and a bottom cover 11, two ends of the cup body 22 are open, the top cover 10 is directly mounted on the top opening of the cup body 22, and the top cover is hermetically mounted by means of a horizontal ring surface of the top cover and a horizontal ring surface of the top of the cup body 22. The edge of the bottom cover 11 is provided with a ring of annular grooves, the center of the annular groove is provided with a circular groove, an elastic sealing element I14 is arranged in the annular groove, an elastic sealing element II16 is arranged in the circular groove, after the bottom cover 11 is connected with the bottom of the cup body 22, the bottom edge of the cup body 22 is sealed by the elastic sealing element I14, and the edge of the bottom rotary part of the rotary body I2 is sealed by the elastic sealing element II 16. The dirty air inlet 4 is provided in the cup 22 and the clean air outlet 5 is provided in the lid 10.

In one embodiment, the top cover 10 is provided with a filter body 9 at the clean air outlet 5, and the bottom cover 11 is hermetically connected with the bottom of the rotator I2.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A vacuum cyclonic separating and dust collecting apparatus (12) comprises a dirt cup (1) having a dirty air inlet (4) and a clean air outlet (5); a revolving body I (2) is arranged in an air flow path from the dirty air inlet (4) to the clean air outlet (5) in the dust collecting cup (1), an interlayer between the revolving body I (2) and the dust collecting cup (1) is used for forming a cyclone passage I (100), and an area close to a cup bottom in the dust collecting cup (1) is used for forming a dust collecting area I (300), and the dust collecting device is characterized in that: a plurality of movable blocking pieces (6) are arranged on a passage between the cyclone passage I (100) and the dust collection area I (300), and each movable blocking piece (6) is provided with a pivoting end and a free end opposite to the pivoting end; the pivoting end of the movable baffle (6) is pivoted to the outer wall of the revolving body I (2); when the dust collection cup (1) is in an initial state, the free end of the movable baffle (6) naturally droops towards the dust collection area I (300) under the action of gravity, and when the dust collection cup (1) is inclined to one side from the initial state, the free end of the movable baffle (6) freely rotates around the pivot axis of the pivot end under the action of gravity until the free end is lapped on the inner wall of the dust collection cup (1) and is used for preventing large-particle dust (13) in the dust collection area I (300) from entering the cyclone passage I (100); the initial state of the dust collecting cup (1) is a state that the cup mouth is vertically upward and the cup bottom is vertically downward.

2. A vacuum cyclone dust collecting apparatus (12) in accordance with claim 1, wherein: when the dust collection cup (1) is changed from an inclined state to an initial state, the free end of the movable baffle (6) freely rotates around the pivot axis of the pivot end under the action of gravity to be away from the inner wall of the dust collection cup (1) so as to enable large-particle dust (13) in the cyclone passage I (100) to enter the dust collection area I (300).

3. A vacuum cyclone dust collecting apparatus (12) in accordance with claim 1, wherein: a revolving body II (3) with inner and outer revolving parts (21, 20) is arranged in the revolving body I (2), an interlayer between the inner and outer revolving parts (21, 20) is used for forming a cyclone passage II (200), and a dust collecting area II (400) is arranged below the cyclone passage II (200); the bottom of the inner revolving part (21) is provided with a secondary separation outlet (18) for air to flow from the cyclone channel II (200) to the inside of the inner revolving part (21), a secondary separation inlet (17) is arranged on the outer revolving part (20) of the revolving body II (3) and close to the top of the revolving body II (3), and the inside of the inner revolving part (21) is connected with the clean air outlet (5).

4. A vacuum cyclone dust collecting apparatus (12) according to claim 3, wherein: the bottom of the revolving body I (2) is closed and is used for forming the dust collection area II (400) inside; still be equipped with round between whirlwind passageway II (200) and dust collecting zone II (400) and enclose fender (19), enclose fender (19) with gyrorotor I (2) link to each other and form isolation region (500), isolation region (500) can make when dust cup (1) changes to one side slope by initial condition fine dust bits (15) in the dust collecting zone II (400) slide to isolation region (500) and avoid it to get into in whirlwind passageway II (200).

5. A vacuum cyclone dust collecting apparatus (12) according to claim 3, wherein: the secondary separation inlet (17) is arranged along the tangential direction of the cyclone passage II (200).

6. A vacuum cyclone dust collecting apparatus (12) in accordance with claim 1, wherein: the part of the revolving body I (2) corresponding to the cyclone passage I (100) is a conical structure body, and the diameter of the conical structure body is reduced from top to bottom in sequence.

7. A vacuum cyclone dust collecting apparatus (12) according to claim 1 or 5, characterized in that: and a filter screen (8) for filtering air flowing from the cyclone channel I (100) to the inside of the revolving body I (2) is arranged on the wall of the revolving body I (2).

8. A vacuum cyclone dust collecting apparatus (12) in accordance with claim 1, wherein: the dust collecting cup (1) comprises a cup body (22), a top cover (10) and a bottom cover (11), two ends of the cup body (22) are open, the top cover (10) is arranged at the top opening of the cup body (22) in a sealing mode, and the bottom cover (11) is arranged at the bottom opening of the cup body (22) in a sealing mode; the dirty air inlet (4) is arranged on the cup body (22), and the clean air outlet (5) is arranged on the top cover (10).

9. A vacuum cyclone dust collecting apparatus (12) in accordance with claim 8, wherein: and a filter body (9) is arranged at the clean air outlet (5) of the top cover (10), and the bottom cover (11) is hermetically connected with the bottom of the revolving body I (2).

10. The utility model provides a dust catcher, includes the organism and locates the dust collecting device in the organism, its characterized in that: the dust collecting apparatus is a vacuum cyclone dust collecting apparatus (12) as claimed in any one of claims 1 to 9.