CN114680728A

CN114680728A - Vacuum cleaner with a vacuum cleaner head

Info

Publication number: CN114680728A
Application number: CN202011624899.6A
Authority: CN
Inventors: 卞庄
Original assignee: Suzhou Chenghe Cleaning Equipment Co Ltd
Current assignee: Suzhou Chenghe Cleaning Equipment Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-07-01
Anticipated expiration: 2040-12-30
Also published as: CN114680728B

Abstract

The invention discloses a vacuum cleaner, which comprises a dust cup assembly and a vacuum motor, wherein the vacuum motor is used for generating suction force and introducing a dust-containing airflow into the dust cup assembly; a float disposed within the exhaust passage and movable toward the first end when the vacuum motor is activated to provide a suction force; the cleaning piece and the floating piece are arranged in a transmission mode, so that the floating piece can drive the cleaning piece to move towards the upper end portion when moving towards the first end portion. According to the vacuum cleaner, the dust cup finishes automatic dust scraping operation through the linkage mechanism between the floating piece and the cleaning piece, the wall surface of the mesh filter can be cleaned in time, the probability that the filter holes are blocked by dust is reduced, and the dust removal efficiency is improved.

Description

Vacuum cleaner with a vacuum cleaner head

Technical Field

The present invention relates to a vacuum cleaner.

Background

Currently, vacuum cleaners are preferred as widely used cleaning devices, particularly cyclonic separation cleaners which do not require replacement of the filter bag. Cyclonic separation cleaners generally comprise a dirt cup with a mesh filter therein, into which a dirty airflow is passed for cyclonic separation, the separated airflow being filtered through the mesh filter and directed towards a vacuum. The mesh filter arranged in the dust cup mainly realizes the filtering effect through the filtering holes distributed on the mesh filter, and dust carried by airflow and with the particle size larger than the filtering holes can not pass through the mesh filter, thereby realizing the gas-solid separation. In the use process of the existing dust cup, air flow often carries soft garbage such as hair, fine fibers and the like to enter the dust cup, the soft garbage is easy to be intercepted by the filter holes and stays in the dust cup due to light weight and large size, and the soft garbage is easy to adhere to the filter hole accessories to block the filter holes under the action of vacuum suction force.

Disclosure of Invention

In order to solve the above technical problems, it is an object of the present invention to provide a vacuum cleaner capable of reducing clogging of filter holes of a mesh filter by dust.

In order to achieve the purpose of the invention, the invention adopts the following technical scheme: a vacuum cleaner comprising a dirt cup assembly and a vacuum motor, said vacuum motor configured to be operable to generate a suction force and to turn said suction force off, said dirt cup assembly comprising:

the cup body is internally limited with a cavity, and the cup body is provided with an air inlet and an air outlet which are communicated with the cavity;

a mesh filter disposed within said chamber, said mesh filter comprising a first cylindrical wall having a plurality of filter holes formed therein to provide air escape from said chamber, said first cylindrical wall having an upper end and a lower end in an axial direction;

an exhaust passage capable of directing the flow of air exiting the filter aperture to the air outlet, the exhaust passage having a first end and a second end, the first end being closer to the air outlet than the second end;

a float disposed within said exhaust passage and configured to be movable by said suction force in a direction toward said first end when said vacuum motor is activated to generate said suction force; and

cleaning members surrounding and movable along the outer peripheral wall surface of the first cylindrical wall in the upper and lower end directions to clean the first cylindrical wall; the cleaning piece and the floating piece are arranged in a transmission mode, so that the floating piece can drive the cleaning piece to move towards the upper end part when moving towards the first end part direction.

In the above technical solution, it is further preferred that the dirt cup assembly further includes a weight member attached to the cleaning member and configured to carry the cleaning member toward the lower end portion and the floating member toward the second end portion when the vacuum motor is turned off and loses suction force.

In the above technical solution, it is further preferable that the dirt cup assembly further includes an ash pressing member, and the ash pressing member is located below the cleaning member; the dust pressing part and the cleaning part are fixedly arranged, so that: when the cleaning piece moves towards the lower end part, the dust pressing piece is driven by the cleaning piece to move downwards so as to compact the garbage at the lower part of the chamber towards the inner bottom of the chamber. Further preferably, the dust pressing member and the cleaning member are formed as an integral member. Or further preferably, the dust pressing member includes a dust retaining rim protruding radially outward with respect to the outer peripheral wall surface of the first cylindrical wall, the dust retaining rim being configured to prevent dust falling into a lower portion of the chamber from returning to an upper portion of the chamber.

In the above technical solution, it is further preferable that the mesh filter includes a second cylindrical wall located inside the first cylindrical wall, an axis of the second cylindrical wall is parallel or collinear with an axis of the first cylindrical wall, and the exhaust passage is formed inside the second cylindrical wall.

In the above technical solution, it is further preferable that the dirt cup assembly further includes a pulling rope, one end of the pulling rope is connected to the cleaning member, and the other end of the pulling rope is connected to the floating member, and the pulling rope is used for transmitting the movement of the floating member to the cleaning member.

In the above technical solution, it is further preferable that the dust cup assembly is located above the vacuum motor, and the air outlet is disposed at a lower portion of the cup body.

In the above technical solution, it is further preferable that the floating member is formed of a lightweight material.

In the above technical solution, it is further preferable that the floating member is spherical.

In the above technical solution, it is further preferable that the vacuum cleaner further includes an electromagnet, the electromagnet is disposed adjacent to the first end portion of the exhaust passage, the electromagnet is configured to generate a magnetic field in response to the activation of the vacuum motor and to turn off the magnetic field in response to the turning off of the vacuum motor, and the floating member is provided with a magnetic attraction member that is acted on by the magnetic field.

In the above technical solution, it is further preferable that the cleaning member is annular and has a first wiper strip located at an inner end, and the first wiper strip is configured to contact the plurality of filter holes when the cleaning member moves along the outer circumferential wall surface of the first cylindrical wall. Further preferably, the cleaning member has a second wiper strip at an outer end portion thereof, the second wiper strip being configured to contact an inner wall surface of the cup body when the cleaning member moves along an outer peripheral wall surface of the first cylindrical wall.

According to the vacuum cleaner, the dust cup finishes automatic dust scraping operation through the linkage mechanism between the floating piece and the cleaning piece, the peripheral wall surface of the mesh filter is cleaned in time, the probability that the filter holes are blocked by dust is reduced, and the dust removal efficiency is improved.

Drawings

FIG. 1 is a schematic view of a dirt cup assembly and a vacuum motor of a vacuum cleaner in accordance with a preferred embodiment of the present invention;

FIG. 2 is a schematic view of a mesh filter according to a preferred embodiment of the present invention;

FIG. 3 is a schematic view showing the connection of the cleaning member, the weight member, the dust pressing member, the pulling string and the floating member according to a preferred embodiment of the present invention;

FIG. 4 is a schematic view of the vacuum cup assembly of the preferred embodiment of FIG. 1 showing the flow of air and the operation of the various components therein when the vacuum motor is turned on;

FIG. 5 is a schematic view of the vacuum cup assembly of the preferred embodiment of FIG. 1 after a period of time after the vacuum motor has been turned on;

FIG. 6 is a schematic view of the vacuum cup assembly of the preferred embodiment of FIG. 1 with the vacuum motor turned off and the airflow and components within the dirt cup assembly;

FIG. 7 is a schematic view of a dirt cup assembly and a vacuum motor of a vacuum cleaner in accordance with another preferred embodiment of the present invention;

FIG. 8 is a schematic view of the preferred embodiment shown in FIG. 7, showing the airflow and operation of the various components within the dirt cup assembly when the vacuum motor is turned on;

FIG. 9 is a schematic view of the vacuum cup assembly of the preferred embodiment of FIG. 7 after a period of time after the vacuum motor has been turned on;

figure 10 is a schematic view of the vacuum motor of the preferred embodiment of figure 7 with the airflow and components within the dirt cup assembly turned off.

Detailed Description

For the purpose of explaining the technical content, the structural features, the achieved objects and the effects of the invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings, wherein the "up" and "down" positional relationships in the present specification correspond to the up and down directional relationships in the drawings, respectively.

As shown in fig. 1, there are shown a dust cup assembly 1 and a vacuum motor 2 in a vacuum cleaner of a preferred embodiment; wherein the vacuum motor 2 is installed below the dust cup assembly 1. The vacuum motor 2 operates as a power supply for the air flow and the dirt cup assembly 1 operates as an actuator for the air-dust separation. The vacuum motor 2 is operable to effect turning on to generate a suction force and turning off the suction force, the generated suction force being capable of drawing a working airflow with entrained dust into the dirt cup assembly 1 for air-dust separation and delivering the separated air.

The dirt cup assembly 1 includes a cup body 11, a mesh filter 15, a float member 3, a cleaning member 4, a weight member 5, and a dust pressing member 6. The cup body 11 is cylindrical and defines a chamber 12 inside, an air inlet 13 and an air outlet 14 which are communicated with the chamber 12 are arranged on the outer wall of the cup body 11, and the working air flow containing dust flows from the air inlet 13 to the air outlet 14 and flows out of the air outlet 13. In this example, the air inlet 13 is located at the upper portion of the cup 11, and the air outlet 14 is located at the lower portion of the cup 11.

A mesh filter 15 is provided in the inner upper portion of the chamber 12. The cleaning member 4 is disposed around the outside of the mesh filter 15, and the cleaning member 4 can reciprocate up and down along the outer peripheral wall surface of the mesh filter 15 to clean the outer peripheral wall surface of the mesh filter 15. The dust pressing member 6 is located below the cleaning member 4, and the dust pressing member 6 can reciprocate below the mesh filter 15 along with the cleaning member 4 to compact dust at the lower part of the chamber 12 toward the inner bottom of the chamber 12 during the movement.

As shown in fig. 2, the mesh filter 15 includes a first cylindrical wall 151, and a plurality of filter holes 152 are formed on the circumference of the first cylindrical wall 151; a plurality of filter holes 152 are formed in the first cylindrical wall 151 to provide air escape from the chamber 12. In other embodiments, the first cylindrical wall may also include a screen, and the plurality of air escape apertures are formed by the mesh of the screen. The first cylindrical wall 151 has an upper end 1511 and a lower end 1512. The inner side of the first cylindrical wall 151 is provided with a second cylindrical wall 17, the axis X of the second cylindrical wall 17 is coincident with the axis of the first cylindrical wall 151, the inner side of the second cylindrical wall 17 is provided with a vent channel 16, the vent channel 16 can guide the air flow escaping from the filter hole 152 to the air outlet 14 at the lower part of the cup body 11, and the vent channel 16 is provided with a first end part 161 and a second end part 162; in this example, the first end 161 is at the lower portion, the second end 162 is at the upper portion, and the first end 161 is closer to the outlet 14 than the second end 162. A transverse partition 18 is arranged between the inner wall surface of the first cylindrical wall 151 and the outer wall surface of the second cylindrical wall 17, the transverse partition 18 divides the space between the inner peripheral wall surface of the first cylindrical wall 151 and the outer peripheral wall surface of the second cylindrical wall 17 into a first inner cavity 153 at the upper part and a second inner cavity 154 at the lower part, the filter holes 152 are directly communicated with the first inner cavity 153, and the second inner cavity 154 is communicated with the air outlet 14. The exhaust passage 16 is located before the first and second

inner cavities

153 and 154 in terms of the direction of the air flow. Thus, the air flow from the plurality of filter holes 152 will first enter the first interior cavity 153, then enter the exhaust channel 16 from the second end 162, then enter the second interior cavity 153 from the first end 161 of the exhaust channel 16, and finally exit the air outlet 14.

The float 3 is a spherical member formed of a lightweight material, which is disposed in the exhaust passage 16. The floatation member 3 and the cleaning members 4 are connected together by a number of pull cords 7, which pull cords 7 extend from the upper part of the chamber 12 into the exhaust channel 16. The pull cord 7 is capable of transmitting the movement of the float 3 to the cleaning member 4. The float 3 is able to "flow" in the direction of the first end 161 along with the air flow entering the exhaust channel 16 when the vacuum motor 2 is activated to provide a suction force. The weight member 5 is fixed on the lower part of the cleaning member 4, and the weight member 5 can provide a guiding force for the cleaning member 4 and the dust pressing member 6, so that when the vacuum motor 2 is switched off, the cleaning member 4 and the dust pressing member 6 are guided to move downwards together, and the floating member 3 is pulled by the traction rope 7 to move upwards and reset. In other embodiments, the counterweight may optionally be omitted, and the cleaning member 4 and the dust pressing member 6 may optionally be weighted more heavily, so that both can move downward against their own weight after the vacuum motor 2 is turned off.

In order to enable the float member 3 to be positioned at the first end 161 during start-up of the vacuum motor 2, the float member 3 is provided with a magnetically attractive member 31; an electromagnet 8 is provided at a support base (not shown in the figures) of the vacuum motor 2, the electromagnet 8 being arranged adjacent to a first end 161 of the exhaust channel 16, the electromagnet 8 being configured to generate a magnetic field in response to the activation of the vacuum motor 2 and to close the magnetic field in response to the deactivation of the vacuum motor 2, the magnetic attraction member 31 on the float member 3 being capable of being acted upon by the magnetic field. The combination effect of the electromagnet 8 and the magnetic attraction piece 31 can reduce the accidental movement of the floating piece 3 caused by the unstable suction force of the vacuum motor 2.

As shown in figure 3, the dust pressing part 6, the balance weight part 5 and the cleaning part 4 are formed into an integral part, the dust pressing part 6 is positioned below the cleaning part 4, and a connecting column 9 is arranged between the dust pressing part 6 and the cleaning part 4. The cleaning piece 4 is annular, a first scraping strip 41 is arranged at the inner end part of the cleaning piece, and a second scraping strip 42 is arranged at the outer end part of the cleaning piece; when the cleaning member 4 moves up and down along the outer peripheral wall surface of the first cylindrical wall 151, the first scraping strip 41 can contact and rub the plurality of filter holes 152, so as to remove the soft garbage near the plurality of filter holes 152 from the outer peripheral wall surface of the first cylindrical wall 151; the second wiper strip 42 simultaneously rubs against the inner wall surface of the cup body 11, thereby achieving removal of dust on the inner wall surface of the cup body 11. When the cleaning member 4 moves toward the lower end portion 1512, the dust pressing member 6 is moved downward by the cleaning member 4 to press the garbage at the lower portion of the chamber 12 toward the inner bottom of the chamber 12. The dust pressing member 6 includes a dust-retaining rim 61, the dust-retaining rim 61 being radially outwardly convex with respect to the outer peripheral wall surface of the first cylindrical wall 151; referring to fig. 5, the dust-retaining lip 61 is configured to prevent dust falling into the lower portion of the chamber 12 from returning to the upper portion of the chamber 12.

The dust pressing member 6, the weight member 5 and the cleaning member 4 of this embodiment are all sized to ensure the normal circulation of the dust-containing air flow and the exhaust air, and the connecting column 9 is as small as possible under the condition of satisfying the strength to reduce the shielding of the filter hole 152.

As shown in fig. 4-5, when the vacuum motor 2 is activated to perform the cleaning operation, air and garbage will flow into the chamber 12 from the air inlet 13, and enter the first inner cavity 153 from the chamber 12, then enter the exhaust channel 16 from the second end 162 of the exhaust channel 16, enter the second inner cavity 153 from the first end 161 of the exhaust channel 16, and finally flow out from the air outlet 14; a flowing air flow from the air inlet 13 to the air outlet 14 is formed in the dust cup 11; the floating member 3 will move with the air flow towards the second end 162 downwards, and when the floating member 3 moves downwards, it will pull the integrated member consisting of the cleaning member 4, the dust pressing member 6 and the weight member 5 to move upwards along the outer peripheral wall of the first cylindrical wall 151, and when the floating member 3 moves to a position close to the electromagnet 8, the floating member 3 will be attracted by the electromagnet 8 under the action of the magnetic attraction member 31 in the floating member 3, and when the cleaning member 4 moves right to the upper end 1511 of the first cylindrical wall 151; as long as the vacuum motor 2 is always activated, the cleaning member 4, the dust pressing member 6, the weight member 5 and the floating member 3 will always remain at the positions shown in fig. 5, as the vacuum motor 2 continues to suck dust, large-sized garbage will be left in the chamber 12, hard and heavy solid garbage will fall into the lower portion of the chamber 12, and soft garbage such as hair, fibers and the like will partially wrap around the outer circumferential surface of the first cylindrical wall 151 and may block part of the filter holes 152.

As shown in fig. 6, when the vacuum motor 2 is turned off in the operation of fig. 5, the electromagnet 8 loses the magnetic field generating capability, the floating member 3 loses the magnetic attraction of the electromagnet 8 and the suction force of the vacuum motor, the weight member 5 guides the cleaning member 4 and the dust pressing member 6 downward together, the cleaning member 4 scrapes off soft garbage adhered to the outer peripheral surface of the first cylindrical wall 151 and the filter holes 152 during the movement, and the garbage falls down and finally falls into the lower part of the chamber 12; meanwhile, the dust pressing piece 6 can press the garbage at the lower part of the chamber 12 towards the inner bottom, and the action can effectively prevent the dust from being lifted and flying around when the cup body 11 is used for cleaning the dust.

And when the vacuum motor 2 is switched on again, the floating part 3 moves under the action of suction force again according to the process in the attached drawings 4-5, the floating part 3 is sucked by the electromagnet 8, the cleaning part 4 and the ash pressing part 6 move upwards together with the floating part 3, and ash scraping and ash pressing work is executed after the next time the vacuum motor 2 is switched off.

Referring to fig. 7, there is shown a cup assembly 10 and a vacuum motor 20 in a vacuum cleaner in accordance with another preferred embodiment, the vacuum motor 20 being mounted on an upper portion of the cup assembly 10. The air outlet 140 is located at the top of the dirt cup body 110. The pull cord 70 is connected at one end to the cleaning member 40 and at the other end to the float member 30 in the exhaust passage 160. The mesh filter 150 still includes a first cylindrical wall 1510 and a second cylindrical wall 170, and the cleaning member 40 can move toward the upper end 15110 and the lower end 15120 of the first cylindrical wall 1510. The first end 1610 of the exhaust channel 160 is at an upper and second end 1620 is at a lower level. In this case, the cleaning elements 40 are able to move in the same direction as the float elements 30 due to the winding design of the pull cord 70.

As shown in fig. 8-9, when the vacuum motor 20 is activated, the dust-laden air flows from the air inlet 130 into the chamber 120 in the cup body 110 and then passes through the filter holes of the first cylindrical wall 1510, the floating member 30 is moved toward the upper first end 1610 by the suction force, and the cleaning member 40 is moved toward the upper end 15110 by the pulling string 70. When the float 30 moves up close to the outlet mouth 140, the cleaning element 40 it pulls moves right up to the upper end 15110 of the first cylindrical wall 1510.

As shown in fig. 10, when the vacuum motor 20 is turned off, the floating member 30 loses its suction force, and the cleaning member 40 and the dust pressing member 60 are moved downward by the weight member 50, which accomplishes the purpose of scraping and pressing dust. The principles of ash scraping and ash pressing are the same as those of the above embodiments, and the description thereof is omitted.

The cleaning piece and the dust pressing piece are used for cleaning the dust cup, particularly the filter hole, no additional operation is needed by a user, one-time cleaning action can be realized at the moment of shutdown of the machine, and the use is very convenient.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the foregoing description only for the purpose of illustrating the principles of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims, specification, and equivalents thereof.

Claims

1. A vacuum cleaner comprising a dirt cup assembly (1) and a vacuum motor (2), said vacuum motor (2) being configured and operable to generate a suction force and to turn off said suction force, said dirt cup assembly (1) comprising:

the cup body (11), a chamber (12) is limited in the cup body (11), and an air inlet (13) and an air outlet (14) which are communicated with the chamber (12) are arranged on the cup body (11);

a mesh filter (15), said mesh filter (15) being disposed within said chamber (12), said mesh filter (15) comprising a first cylindrical wall (151), a plurality of filter holes (152) being formed in said first cylindrical wall (151) to provide air escape from said chamber (12), said first cylindrical wall (151) having an upper end (1511) and a lower end (1512) in an axial direction;

an exhaust channel (16), said exhaust channel (16) being capable of directing the flow of air exiting said filter aperture (152) to said outlet vent (14), said exhaust channel (16) having a first end (161) and a second end (162), said first end (161) being closer to said outlet vent (14) than said second end (162);

a float member (3), said float member (3) being arranged within said exhaust channel (16) and being configured to be movable towards said first end portion (161) by a suction force when said vacuum motor (2) is activated to generate said suction force; and

cleaning members (4), wherein the cleaning members (4) surround the peripheral wall surface of the first cylindrical wall (151) and can move along the peripheral wall surface of the first cylindrical wall (151) towards the direction of the upper end part (1511) and the direction of the lower end part (1512) to clean the first cylindrical wall (151);

the cleaning piece (4) and the floating piece (3) are arranged in a transmission mode, so that the floating piece (3) can drive the cleaning piece (4) to move towards the direction of the upper end portion (1511) when moving towards the direction of the first end portion (161).

2. The vacuum cleaner of claim 1, wherein the dirt cup assembly (1) further comprises a weight (5), the weight (5) being attached to the cleaning member (4) and configured to carry the cleaning member (4) towards the lower end (1512) and the float member (3) towards the second end (162) when the vacuum motor (2) is turned off and loses suction.

3. The vacuum cleaner of claim 1, wherein said dirt cup assembly (1) further includes a dust pressing member (6), said dust pressing member (6) being located below said cleaning member (4); the dust pressing part (6) and the cleaning part (4) are fixedly arranged, so that: when the cleaning piece (4) moves towards the lower end part (1512), the dust pressing piece (6) is driven by the cleaning piece (4) to move downwards to compact the garbage at the lower part of the chamber (12) towards the inner bottom of the chamber (12).

4. A vacuum cleaner as claimed in claim 3, characterized in that the dust pressing member (6) is formed as an integral part of the cleaning member (4).

5. A vacuum cleaner as claimed in claim 1, characterized in that said dust pressing member (6) comprises a dust lip (61) projecting radially outwards with respect to the peripheral wall surface of said first cylindrical wall (151), said dust lip (61) being configured to prevent dust falling into the lower part of said chamber (12) from returning to the upper part of said chamber (12).

6. The vacuum cleaner according to claim 1, wherein said mesh filter (15) comprises a second cylindrical wall (17) located inside said first cylindrical wall (151), an axis of said second cylindrical wall (17) being parallel or collinear with an axis of said first cylindrical wall (151), said exhaust passage (16) being formed inside said second cylindrical wall (17).

7. A vacuum cleaner as claimed in claim 1, characterized in that the dirt cup assembly (1) further comprises a pull cord (7), said pull cord (7) being connected at one end to said cleaning member (4) and at the other end to said float member (3), said pull cord (7) being adapted to transmit movement of said float member (3) to said cleaning member (4).

8. The vacuum cleaner according to claim 1, wherein the dirt cup assembly (1) is located above the vacuum motor (2), and the air outlet (14) is provided at a lower portion of the cup body (11).

9. Vacuum cleaner according to claim 1, characterized in that the float (3) is formed of a light material.

10. Vacuum cleaner according to claim 1, characterized in that the float (3) is spherical.

11. A vacuum cleaner according to claim 1, characterized in that the vacuum cleaner further comprises an electromagnet (8), the electromagnet (8) being arranged adjacent to the first end (161) of the exhaust channel (16), the electromagnet (8) being configured to generate a magnetic field in response to activation of the vacuum motor (2) and to switch off the magnetic field in response to switching off of the vacuum motor (2), the float member (3) being provided with a magnetically attractive member (31) which is acted on by the magnetic field.

12. A vacuum cleaner as claimed in claim 1, characterized in that said cleaning member (4) is annular and has a first scraper bar (41) at an inner end, said first scraper bar (41) being arranged to contact said plurality of filter holes (152) when said cleaning member (4) is moved along the outer circumferential wall surface of said first cylindrical wall (151).

13. The vacuum cleaner according to claim 12, wherein said cleaning member has a second wiper strip (42) at an outer end portion, said second wiper strip (42) being configured to contact an inner wall surface of said cup body (11) when said cleaning member (4) moves along an outer peripheral wall surface of said first cylindrical wall (151).