CN112656289A

CN112656289A - Dirt and dust separating device and dust collector

Info

Publication number: CN112656289A
Application number: CN202011645439.1A
Authority: CN
Inventors: 陈传冰; 李朝伟
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-04-16

Abstract

The invention provides a dust and dirt separating device and a dust collector, which comprise: the main part, inside is provided with the vacuum motor. The wind wheel is arranged on the vacuum motor; the dust collecting cavity is arranged on the main body, and an air inlet is formed in the dust collecting cavity; the filter screen is arranged in the dust collection cavity, an output shaft is arranged on the filter screen, a cleaning part is connected onto the output shaft, the cleaning part acts on the surface of the filter screen, and the output shaft is suitable for driving the cleaning part to rotate under the driving of external force. Set up like this, realized the cleanness of filter screen, avoided the filter screen to reduce filtering quality because of the adhesion of dust or impurity, reduce the filter screen and change and take out clear number of times, improve user's use and experience.

Description

Dirt and dust separating device and dust collector

Technical Field

The invention relates to the technical field of dust collectors, in particular to a dust and dirt separating device and a dust collector.

Background

Nowadays, economy continues to develop fast, and consumer income continues to increase, especially the rapid growth of big and middle-sized city resident income level, and resident's living condition constantly improves, and the large tracts of land housing is more and more, and the resident also is more and more strong to the demand of dust catcher.

Vacuum cleaner is as common electrical equipment, makes negative pressure environment through built-in motor, inhales the dust catcher with the air that the external world mixes dust and filth inside, through filtering and separation, dust and filth persist in the dust catcher, and clean air is discharged to the external world. Typical dirt separators for vacuum cleaners include porous bag separators or cyclonic separators.

However, after the porous bag type separator is used for a period of time, the small holes on the dust collecting bag are rapidly blocked by dirt, so that the suction force of the dust collector is reduced, after the dust collecting bag is filled, the old bag needs to be thrown away and replaced by a new bag, so that resource waste and environmental pollution are caused, the use cost of a user is increased, and the dirt separation efficiency is low. For the cyclone separator, the airflow carrying dust can form cyclone in the dust collector, and the dust particles have relatively large mass and can be in friction collision with the wall of the container and fall into the dust collecting box under the action of centrifugal force, so that the aim of separating the dust and air is fulfilled.

The prior art provides a dust and dirt separator comprising a foraminous disc at the air flow outlet of the collecting chamber and a motor for rotating the disc. The disk is arranged to rotate about an axis of rotation and includes apertures through which a cleaned airflow passes. The dirt-laden air stream enters the chamber and contacts the rotating turntable, which applies a tangential force to the air stream so that dirt entrained in the air stream moves radially along the surface of the turntable towards the edge of the turntable. During this process, the air flow will exit through the small holes in the turntable, and the dirt therein will continue to move towards the outer radial edge and collect at the bottom of the chamber due to its greater inertia. Compared with a cyclone separator, the separator consumes less vacuum pressure and can be matched with a vacuum motor with less power and noise.

However, in the working process of the separator, when dirt on the turntable or other filtering devices is adhered firmly, the dirt cannot be effectively removed only through the airflow or the inertia effect, and the cleaning effect is poor.

Disclosure of Invention

Therefore, the technical problem to be solved by the present invention is to overcome the defect of poor cleaning effect of the dirt separator on the filtering device in the prior art, so as to provide a dirt-and-dirt separating device and a dust collector.

The present embodiment also provides a dust and dirt separating device, including: the main part, inside is provided with the vacuum motor.

The wind wheel is detachably arranged on the vacuum motor;

the dust collecting cavity is detachably arranged on the main body, an opening is formed in the dust collecting cavity, the main body is connected with the dust collecting cavity through the opening, and an air inlet is formed in the dust collecting cavity;

the filter screen is arranged in the main body, an output shaft is arranged in the middle of the filter screen and movably connected with the filter screen, a cleaning part and a power part are respectively arranged on the output shaft, the cleaning part is abutted against the filter screen, and the power part is suitable for driving the output shaft to rotate;

the edge of the filter screen is abutted against the inner edge of the opening.

The cleaning portion includes: the support structure is arranged adjacent to the filter screen and comprises a rotating center and a plurality of rotating support rods connected with the rotating center, and the rotating center is fixedly connected with the output shaft;

and the cleaning brush is arranged on the rotating support rod and faces the filter screen and is abutted against the filter screen.

The power part is a pneumatic fan blade and is arranged between the filter screen and the wind wheel.

The dust and dirt separating device further comprises a rotating shaft support, the rotating shaft support is arranged on the inner wall of the main body, and the output shaft penetrates into the central position of the rotating shaft support and is movably connected with the rotating shaft support.

The axis of the air inlet and the axis of the filter screen are overlapped.

The inner wall of the main body is provided with an inner barrel, the rotating shaft support is arranged on the inner wall of the inner barrel, and the diameter of the filter screen is larger than that of the inner barrel.

The main body includes: a first body in which the vacuum motor is disposed;

the second main part is detachably connected to the first main part, and the rotating shaft support is arranged inside the second main part.

The side wall of the first main body is provided with an exhaust hole.

The first body is provided with a vacuum motor mounting part.

The vacuum motor mounting part is a groove arranged on the inner wall of the first main body.

And a connecting sleeve is arranged on one side of the rotating center, which is close to the filter screen, and is suitable for being connected with the output shaft.

The filter screen comprises an opening area and a non-opening area, wherein the opening area is arranged inside the non-opening area.

The filter screen is characterized in that a plurality of through holes are arranged in the opening area, and the included angle between the longitudinal axis of each through hole and the longitudinal axis of the filter screen is gradually increased along the direction far away from the center of the filter screen.

The dust and dirt separating device also comprises a motor filter screen which is arranged at one end of the wind wheel close to the filter screen.

The invention also provides a dust collector which comprises the dust-dirt separating device;

one end of the dust collection pipe is connected to the air inlet of the dust and dirt separation device;

and the dust collector head is connected to the other end of the dust collection pipe.

The technical scheme of the invention has the following advantages:

1. the invention provides a dust and dirt separating device, which comprises: the main part, inside is provided with the vacuum motor. The wind wheel is arranged on the vacuum motor; the dust collecting cavity is arranged on the main body, and an air inlet is formed in the dust collecting cavity; the filter screen is arranged in the dust collection cavity, an output shaft is arranged on the filter screen, a cleaning part is connected onto the output shaft, the cleaning part acts on the surface of the filter screen, and the output shaft is suitable for driving the cleaning part to rotate under the driving of external force.

Through setting up cleaning portion at filter screen adjacent position, and cleaning portion is connected with the output shaft, the output shaft takes place the rotation under the drive of external force, because cleaning portion and filter screen butt, rotate the in-process at cleaning portion, wash away and clean the filter screen surface, throw away dust and impurity of adhesion on the filter screen, set up like this, the cleanness of filter screen has been realized, avoid the filter screen to reduce filtration performance because of the adhesion of dust or impurity, reduce the filter screen and change and take out clear number of times, improve user's use and experience, furthermore, no matter be tiny dust of adhesion on the filter screen or the great spot of volume etc., all can wash through the mode of contact scrubbing, the wide and clean dynamics of cleaning range is great, effectively improved the clean effect to the filter screen.

2. According to the dust and dirt separating device provided by the invention, the power part is a pneumatic fan blade and is connected with the output shaft.

Through setting up power portion into pneumatic fan blade, open when the vacuum motor, the wind wheel takes place to rotate, air inlet through dust collecting cavity is to the main part air inlet, the air current is when the pneumatic fan blade, the pneumatic fan blade of drive takes place to rotate, and drive the output shaft and take place to rotate, the synchronous rotation takes place for the cleaning portion that sets up on the output shaft, wash away and clean the filter screen surface, set up like this, through air current drive, make the rotation of cleaning portion need not additionally to set up the power supply drive, the consumption of whole dust catcher has been reduced, and is favorable to energy-concerving and environment-protective.

3. According to the dust and dirt separating device provided by the invention, the pneumatic fan blade is arranged between the filter screen and the wind wheel.

The pneumatic fan blade is arranged between the filter screen and the wind wheel, so that the pneumatic fan blade is arranged adjacent to the wind wheel, the wind receiving efficiency of the pneumatic fan blade is improved, the rotating speed of the output shaft and the filter screen is increased, and the self-cleaning capability of the filter screen on dust is improved.

4. The dust and dirt separating device provided by the invention further comprises a rotating shaft support, the rotating shaft support is arranged on the inner wall of the main body, and the output shaft penetrates through the center of the rotating shaft support and is movably connected with the rotating shaft support.

Set up the pivot support on the main part inner wall, and the output shaft penetrates the central point of pivot support and puts, sets up like this and to have increased the radial spacing of output shaft, sets up with filtering a piece cooperation, has improved the stability of output shaft motion.

5. According to the dust and dirt separating device provided by the invention, the axis of the air inlet and the axis of the filter screen are overlapped.

The arrangement shortens the path of the airflow flowing into the filter screen and improves the filtering efficiency.

6. According to the dust and dirt separating device provided by the invention, the inner wall of the main body is provided with the inner cylinder, the motor support is arranged on the inner wall of the inner cylinder, and the diameter of the filter screen is larger than that of the inner cylinder.

Through foretell setting mode for cover the region of inner tube, also can avoid dirt to enter into the main part inside, cause the pollution to the main part inside.

7. According to the dust and dirt separating device provided by the invention, the vacuum motor mounting part is a groove arranged on the side wall of the first main body.

Through setting up the recess, can realize the stability of vacuum motor self, avoid vacuum motor to take place to rock.

8. According to the dust and dirt separating device provided by the invention, the plurality of through holes are arranged in the opening area, and the included angle between the longitudinal axis of each through hole and the longitudinal axis of the filter screen is gradually increased along the direction far away from the center of the filter screen.

Through the mode of setting up to the through-hole axis for through-hole self can be relative the dirty direction of motion of dirt and deviate certain angle, avoid dirt direct entry to the through-hole in, cause the jam to the through-hole.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a vacuum cleaner according to the present invention;

FIG. 2 is a schematic perspective view of a dust and dirt separating device according to the present invention;

FIG. 3 is a schematic view showing an internal structure of the dirt-separating apparatus shown in FIG. 2;

FIG. 4 is a perspective view of the cleaning part shown in FIG. 3;

FIG. 5 is an exploded view of the dirt-separating device shown in FIG. 2;

description of reference numerals:

1-a body; 11-a first body; 111-vent; 12-a second body; 13-inner cylinder; 14-vacuum motor mounting; 2-a vacuum motor; 3-wind wheel; 31-motor filter screen; 4-dust collecting chamber; 41-air inlet; 5-a cleaning part; 51-a scaffold structure; 52-cleaning brush; 53-connecting sleeves; 6-pneumatic fan blades; 7-a filter screen; 8-a rotating shaft bracket; 81-output shaft; 9-a dust suction pipe; 10-head of vacuum cleaner.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 to 5, a dirt-and-dust separating apparatus includes: comprises a main body 1, a wind wheel 3, a dust collecting cavity 4 and a filter screen 7.

The main body 1 is arranged in a cylindrical shape, and a vacuum motor 2 connected with an external power supply is arranged in the main body; the central cover of wind wheel 3 is established on vacuum motor 2's axis of rotation to can dismantle the connection rather than, be threaded connection in this embodiment, also can be interference connection etc. along 3 work direction of rotation of wind wheel, the inside negative pressure environment that attracts the external dust impurity air current that has of dust separator that produces.

Dust collection chamber 4 is the cylindric that the diameter is greater than main part 1, detachably registrates on main part 1, be convenient for to the clearance of the inside collection dirt of dust collection chamber 4 and the maintenance of filter screen 7, can also pass through buckle or screw thread, different connected modes such as welding integrated into one piece, be the buckle connection in this embodiment, be provided with uncovered on the dust collection chamber 4, main part 1 is connected with dust collection chamber 4 through uncovered, be provided with cylindric air inlet 41 on the dust collection chamber 4, set up along 4 axial middle parts in cylindric dust collection chamber, in this embodiment, dust collection chamber 4 comprises the dirt bowl cover that sets up air inlet 41 and the 4 bodies in the open dust collection chamber of setting.

The filter screen 7 is fixed in the dust collection cavity 4, the output shaft 81 penetrates through the middle of the filter screen 7 and can rotate relative to the filter screen 7, an output shaft is arranged on the filter screen and connected with a cleaning part, the cleaning part acts on the surface of the filter screen, and the output shaft is suitable for driving the cleaning part to rotate under the driving of external force.

Through setting up cleaning portion 5 at filter screen 7 adjacent position, and cleaning portion 5 is connected with output shaft 81, output shaft 81 takes place rotatoryly under the external force drive, because cleaning portion 5 and filter screen 7 butt, in cleaning portion 5 rotation in-process, wash away and clean the filter screen 7 surface, throw away the dust and the impurity of adhesion on filter screen 7, set up like this, filter screen 7's automatically cleaning has been realized, avoid filter screen 7 to reduce filtering quality because of the adhesion of dust or impurity, reduce filter screen 7 and change and take out clear number of times, improve user's use experience, furthermore, no matter be thin dust of adhesion on filter screen 7 or the great spot of volume etc., all can rinse the mode of the brush of contact, the wide and clean dynamics of cleaning scope is great, effectively improved the clean effect to filter screen 7.

In this embodiment, the filter screen 7 has a through hole in the middle for the output shaft 81 to pass through, and as an alternative embodiment, the through hole may have a sealing structure to prevent dust from passing through or accumulating in the gap between the output shaft 81 and the filter screen 7. As another alternative embodiment, the filter screen 7 may be provided with a sealing bearing in the middle.

In this embodiment, the output shaft 81 is provided with a cleaning portion and a power portion, respectively, and the edge of the filter screen 7 abuts against the inner edge of the opening and is fixedly connected to prevent dust from passing through the edge gap. As an alternative embodiment, the edge of the filter screen may also be spaced from the open inner edge.

In this embodiment, the structure of the filter screen 7 itself is not limited too much, and the cross-sectional shape of the filter screen 7 along the longitudinal cross-section thereof may be in a linear arrangement or a triangular arrangement, or may be in an arc arrangement. From the structural point of view, the filter screen 7 may have a simple sheet-like structure or a hollow closed structure. In the present embodiment, the filter 7 is preferably disposed in a plane. As an alternative embodiment, the filter screen 7 may also be arranged conically.

As shown in fig. 4, the cleaning portion 5 includes a holder structure 51 and a washing brush 52.

Support structure 51 is adjacent with filter screen 7, and the setting is at filter screen 7 along the front end of air inlet direction, including rotation center and many rotation branch and annular outer fringe, each rotation branch that is the arc setting is connected with rotation center and annular outer fringe respectively, in this embodiment, support structure 51 sets up along the coplanar, and it is parallel with filter screen 7, annular outer fringe and the setting of filter screen 7 isomorphism, can guarantee that cleaning portion 5 is to regard as convertible implementation, support structure 51's appearance also can be for toper etc. can make the adaptability according to filter screen 7's appearance and adjust. As an alternative embodiment, the annular outer edge may not be provided.

In addition, the rotating center is provided with a connecting sleeve 53 on one side close to the filter screen 7, and the connecting sleeve 53 can be fixedly connected with one end of the output shaft 81, specifically in interference connection, and can also be in welding or limiting clamping connection and the like.

Specifically, the connection sleeve 53 is provided at the axial position of the rotation center and extends toward the vacuum motor 2. The connection mode between the connection sleeve 53 and the output shaft 81 is not limited too much, and it may be interference connection, or may be screw connection, or may be connection by drilling holes in the connection sleeve 53 and the output shaft 81, respectively, and then placing pins in the holes.

The brush 52 in the cleaning unit 5 is provided on the side of the rotation lever facing the filter 7, and abuts against the filter 7. As an alternative embodiment, the washing brush 52 may be replaced with another cleaning tool such as sponge or elastic rubber.

In this embodiment, the power part is a pneumatic fan blade 6, is arranged between the filter screen 7 and the wind wheel 3, comprises a plurality of blades uniformly arranged around the output shaft 81, and can drive the output shaft 81 to rotate under the action of air flow, and the air flow flows into the dust and dirt separating device from the outside under the action of the vacuum motor 2 and the wind wheel 3. In an alternative embodiment, the power unit may also be another power source that outputs in an electric or pneumatic manner, such as a motor or a cylinder.

Through setting up power portion into pneumatic fan blade 6, open when vacuum motor 2, wind wheel 3 takes place to rotate, air inlet 41 through dust collection chamber 4 is to main part 1 air inlet, the air current is when pneumatic fan blade 6, drive pneumatic fan blade 6 takes place to rotate, and it takes place to rotate to drive output shaft 81, the synchronous rotation takes place for cleaning portion 5 that sets up on output shaft 81, wash away and clean 7 surfaces of filter screen, thus setting up, through the air current drive, make cleaning portion 5's rotation need not additionally to set up the power supply drive, the consumption of whole dust catcher has been reduced, and is favorable to energy saving and environmental protection. Meanwhile, the pneumatic fan blade 6 is arranged between the filter screen 7 and the wind wheel 3, so that the pneumatic fan blade 6 and the wind wheel 3 are arranged adjacently, the wind receiving efficiency of the pneumatic fan blade 6 is improved, the rotating speed of the output shaft 81 and the filter screen 7 is increased, and the self-cleaning capability of the filter screen 7 on dust is improved.

Dirt separator still includes pivot support 8, sets up on the inner wall of main part 1, and output shaft 81 penetrates pivot support 8's central point to with pivot support 8 swing joint. Set up pivot support 8 on main part 1 inner wall, and output shaft 81 penetrates pivot support 8's central point and puts, sets up like this and to have increased output shaft 81 radial spacing, and filter the piece cooperation setting, has improved the stability of output shaft 81 motion. In this embodiment, the rotating shaft support 8 is fixedly connected to the inner wall of the main body 1, and a groove for accommodating the output shaft 81 is disposed at the center of the rotating shaft support 8. as an alternative embodiment, the center of the rotating shaft support 8 may be a through hole for the output shaft 81 to pass through, or a sealing bearing member is disposed at the through hole.

As shown in fig. 3, the axis of the air inlet 41 and the axis of the filter screen 7 are arranged to coincide with each other. The arrangement shortens the path of the airflow flowing into the filter screen 7 and improves the filtering efficiency. In this embodiment, an air inlet 41, a cleaning part 5, a filter screen 7, a pneumatic fan blade 6, and a rotating shaft support 8 are respectively disposed along an air inlet direction, and the structures are coaxially disposed. As an alternative embodiment, the air inlet 41 may be arranged non-coaxially with the filter sieve 7, e.g. the air inlet 41 is arranged in a cylindrical side wall of the dust collecting chamber 4. As another alternative, the pneumatic blade 6 may be disposed between the shaft support 8 and the wind wheel 3.

In the embodiment, an inner cylinder 13 is arranged on the inner wall of the main body 1, the filter screen 7 is supported on the inner wall of the inner cylinder 13, and the diameter of the filter screen 7 is larger than that of the inner cylinder 13. Through the arrangement mode, the area of the inner barrel 13 is covered, and dust and dirt can be prevented from entering the main body 1 to pollute the inside of the main body 1.

In the present invention, the body 1 includes a first body 11 and a second body 12. The first body 11 and the second body 12 are cylinders with the same diameter, the connection mode between the first body 11 and the second body 12 is not limited too much, the connection mode can be realized through a buckle, a fixing strip can be arranged on the outer side of the connection seam between the first body 11 and the second body 12, and the first body 11 and the second body 12 are connected into a whole through the fixing strip.

In the present embodiment, the vacuum motor 2 is provided in the first body 11, the second body 12 is provided in connection with the dust collecting chamber 4 and detachably coupled to the first body 11, and the rotation shaft holder 8 is provided in the second body 12. As a further alternative embodiment, the first body 11 and the second body 12 may also be provided integrally.

The inner cylinder 13 and the outer wall of the first body 11 are respectively provided with a plurality of exhaust holes 111 at corresponding positions on the side wall. A plurality of exhaust holes 111 are concentrated regional align to grid in the rectangle and are set up, and the clean gas of the external air current of exhaust after being filtered and detached dust or impurity can be discharged from exhaust hole 111, because exhaust hole 111 sets up on the lateral wall of first main part 11, has adjusted the air-out angle, avoids airing exhaust towards the user, improves user experience. As an alternative embodiment, the venting hole 111 may also be provided at other locations of the body 1, such as on the bottom wall of the second body 12 or the first body 11.

Further, the first body 11 is provided with a vacuum motor mounting portion 14. In the present embodiment, the vacuum motor mounting part 14 is a groove provided on the inner wall of the first body 11. The recess sets up on the extension line of output shaft 81, and the mode that vacuum motor 2 one end was connected through the interference is fixed on the recess, through setting up the recess, can realize the stability of vacuum motor 2 self, avoids vacuum motor 2 to take place to rock. As an alternative embodiment, the vacuum motor mounting portion 14 may also be a bracket structure 51 of the vacuum motor 2 disposed within the first body 11.

The filter 7 includes an opening area and a non-opening area, and the opening area is provided inside the non-opening area.

A plurality of through holes are arranged in the opening area, and the included angle between the longitudinal axis of each through hole and the longitudinal axis of the filter screen 7 is gradually increased along the direction far away from the center of the filter screen 7.

In this embodiment, the specific structure of the filter screen 7 is not limited too much, and a through hole may be formed in the entire diameter range. In a preferred embodiment, the filter screen 7 includes an open area and a non-open area, and the open area is disposed inside the non-open area. Specifically, the non-perforated region itself has a ring-shaped structure.

The shape of the through hole is not limited, and the through hole can be a circular hole or a non-circular hole structure. As long as the blocking of the dirt itself can be achieved. Meanwhile, the axes of the through holes on the filter screen 7 are not limited, and the axes of the through holes may be all arranged parallel to the longitudinal axis of the filter screen 7. In a preferred embodiment, the angle between the longitudinal axis of the through hole and the longitudinal axis of the filter screen 7 increases gradually in a direction away from the center of the filter screen 7. Through the mode of setting up to the through-hole axis for through-hole self can be relative the dirty direction of motion of dirt and deviate certain angle, avoid dirt direct entry to the through-hole in, cause the jam to the through-hole.

The dust and dirt separating device also comprises a motor filter screen 731 which is arranged at one end of the wind wheel 3 close to the support of the filter screen 7. Specifically, the motor filter screen 731 is fixedly connected to one end of the wind wheel 3, and when the wind wheel 3 rotates, the motor filter screen 731 moves synchronously with the wind wheel 3. In this embodiment, the motor filter screen 731 is a HEPA high efficiency filter screen 7.

The present embodiment also provides a vacuum cleaner, including: the dust and dirt separating device, the dust suction pipe 9 and the dust collector head 10. One end of the dust suction pipe 9 is provided with an air inlet 41 connected with the dust and dirt separating device, and the dust collector head 10 is connected with the other end of the dust suction pipe 9.

After the dirt separator starts, the vacuum motor 2 works to generate negative pressure, and the negative pressure sucks dirt into the dirt separator through the dust suction pipe 9 by the dust collector head 10, so that the dirt is stored.

In this embodiment, as shown in fig. 1, a handle may be directly disposed on the dirt-dust separating apparatus, so as to form a handheld vacuum cleaner, and when a vacuum operation is required, a user may directly hold the handle by hand to perform the vacuum operation. As a modification, the dust and dirt separating apparatus may be provided in the dust suction bucket, in which case the user holds the dust suction pipe 9 by hand, and the dust and dirt generated during the cleaning process will enter the dust suction bucket to be collected, and the dust suction bucket is provided therein with rollers to move along with the user.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.

Claims

1. A dirt-and-dust separating apparatus, comprising:

the vacuum motor (2) is arranged in the main body (1).

The wind wheel (3) is arranged on the vacuum motor (2);

the dust collection chamber (4) is arranged on the main body (1), and an air inlet (41) is arranged on the dust collection chamber (4);

the dust collection device comprises a filter screen (7) arranged in a dust collection cavity (4), an output shaft (81) is arranged on the filter screen (7), a cleaning part (5) is connected onto the output shaft (81), the cleaning part (5) acts on the surface of the filter screen (7), and the output shaft (81) is suitable for driving the cleaning part (5) to rotate under the driving of external force.

2. The dirt-and-dust separating apparatus according to claim 1, characterized in that the cleaning portion (5) includes:

the support structure (51) is arranged adjacent to the filter screen (7) and comprises a rotating center and a plurality of rotating support rods connected with the rotating center, and the rotating center is fixedly connected with the output shaft (81);

and a cleaning brush (52) which is arranged on the rotating support rod, faces the filter screen (7), and is abutted against the filter screen (7).

3. Dust and dirt separating device according to claim 2, characterized in that a connecting sleeve (53) is arranged on the side of the rotation centre close to the filter screen (7), said connecting sleeve (53) being adapted to connect to the output shaft (81).

4. A dirt-and-dust separating apparatus according to any one of claims 1-3, further comprising a power section connected to the output shaft (81).

5. The dust-dirt separating device of claim 4, wherein the power part is a pneumatic fan blade (6) connected with the output shaft (81).

6. The dust-dirt separating device of claim 5, characterized in that the pneumatic fan blade (6) is arranged between the filter screen (7) and the wind wheel (3).

7. The dust-dirt separating apparatus according to claim 6, further comprising a rotating shaft bracket (8) provided on an inner wall of the main body (1), wherein the output shaft (81) penetrates a central position of the rotating shaft bracket (8) and is movably connected with the rotating shaft bracket (8).

8. Dust and dirt separating device according to any one of claims 1 or 2, characterized in that the axis of the air inlet (41) and the axis of the filter screen (7) are arranged coincident with each other.

9. The dust-dirt separating device according to claim 6, characterized in that an inner cylinder (13) is arranged on the inner wall of the main body (1), the rotating shaft bracket (8) is arranged on the inner wall of the inner cylinder (13), and the diameter of the filter screen (7) is larger than that of the inner cylinder (13).

10. Dust-dirt separation device according to claim 7, characterized in that the main body (1) comprises:

a first body (11), the vacuum motor (2) being disposed in the first body (11);

and the second main body (12) is detachably connected to the first main body (11), and the rotating shaft support (8) is arranged in the second main body.

11. Dust and dirt separating device according to claim 10, characterized in that the side wall of the first body (11) is provided with a vent hole (111).

12. A dirt-and-dust separating apparatus according to claim 10, characterised in that the first body (11) is provided with a vacuum motor mounting portion (14).

13. The dirt-and-dust separating apparatus according to claim 12, wherein the vacuum motor mounting portion (14) is a groove provided on an inner wall of the first body (11).

14. A dust and dirt separating apparatus according to any one of claims 1-3, characterized in that the filter screen (7) comprises an open area and a non-open area, the open area being arranged inside the non-open area.

15. Dust and dirt separating device according to claim 14, characterized in that a number of through holes are provided in the area of the opening, the angle between the longitudinal axis of the through holes and the longitudinal axis of the filter screen (7) increasing in the direction away from the centre of the filter screen (7).

16. The dust-dirt separating apparatus according to claim 1, further comprising a motor filter screen (31) disposed at an end of the wind wheel (3) adjacent to the filter screen (7).

17. The dust and dirt separating device according to claim 1, wherein an opening is provided on the dust collecting chamber (4), the main body (1) is connected with the dust collecting chamber (4) through the opening, and the edge of the filter screen (7) is abutted against the inner edge of the opening.

18. A dust collector is characterized by comprising

The dirt-and-dust separating apparatus of any one of claims 1 to 17;

one end of the dust collection pipe (9) is connected to the position of an air inlet (41) of the dust and dirt separation device;

and the dust collector head (10) is connected to the other end of the dust collection pipe (9).