CN112438648B

CN112438648B - Vacuum cleaner

Info

Publication number: CN112438648B
Application number: CN201910805637.0A
Authority: CN
Inventors: 卞庄
Original assignee: Suzhou EUP Electric Co Ltd
Current assignee: Suzhou EUP Electric Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2024-05-31
Anticipated expiration: 2039-08-29
Also published as: CN112438648A

Abstract

The invention discloses a vacuum cleaner, comprising: a body; a rear handle portion defined by and located at the body; a dust inlet duct section having a dirty air inlet; a vacuum motor; the dust collecting cup is arranged on the body, a dust chamber for receiving and storing dust is arranged in the dust collecting cup, and the dust inlet pipe, the dust collecting cup and the vacuum motor are sequentially communicated with air flow; the filter screen is positioned in the dust cup, and air can flow out of the dust cup after passing through the filter screen; the dust cleaning device comprises a dust cleaning piece which is positioned in the dust collecting cup and at least partially clings to the outer surface of the filter screen, and an operating piece which can be operated from the outside to drive the dust cleaning piece to move along the outer surface of the filter screen; the operating member is at least partially located on the outer surface of the dirt cup and is movable relative to the outer surface of the dirt cup. According to the dust collector disclosed by the invention, a user can clean meshes on the surface of the filter screen at any time, and the cleaning wires do not need to open the dust collection cup, so that the operation of the user is facilitated, and the user experience is greatly improved.

Description

Vacuum cleaner

Technical Field

The present invention is in the field of vacuum cleaners.

Background

The dust cup in the vacuum cleaner can realize gas-solid separation of dust-containing airflow introduced into the dust cup, and after the gas-solid separation, large-particle dust can remain in the dust cup, and small-particle dust can flow through the filter screen along with air and escape to the outside of the dust cup. However, since the filter screen inside the dust cup can accumulate medium particles or suspended garbage at the mesh after long-term use, the negative pressure of the dust cup is reduced, thereby affecting the gas-ash separation efficiency.

In the prior art, in order to clean the blocking surface of the filter screen, the dust cup is usually detached, so that the filter screen is exposed, and then cleaning work is performed.

In the cyclone separation device disclosed in chinese patent publication No. CN102283613B, a cleaning member capable of moving along a sidewall is provided inside the dust cup, and the cleaning member is capable of cleaning the sidewall and a plurality of through holes of the filter cup during the movement process, and is configured to be driven by means of a knob provided at the top of the dust cup; in the cyclone separating apparatus, the cleaning is driven by rotating the rotary handle knob at the top to clean the surface of the filter cover. The cyclonic separating apparatus has a problem in that, in the case of a compact hand-held cleaner, the top of the cyclonic separating apparatus is less exposed, i.e. there is no means for the user to operate the apparatus to remove dust. Also, it becomes difficult to provide a compact hand-held cleaner with a component having a dust removing function.

Chinese patent publication No. CN109602326 a discloses a dust cup comprising a stirring member in the form of a plurality of bristles. When the dirt cup is rotated about an axis to transition from the closed orientation to the open orientation, the stirring member comes into contact with the catch net (i.e., the filter mesh) of the filter section, which contact "scrapes" the catch net, which can advantageously remove or otherwise displace debris adhering to the catch net. The compact handheld dust collector can utilize the acting force when the dust collecting cup is opened, and meanwhile, the dust on the dust retaining net can be cleaned, so that the arrangement of a part with a dust removing function on the compact handheld dust collector can be facilitated, and the scheme has the defects that the dust collecting cup must be stopped and opened every time the dust retaining net surface is cleaned, and if the dust collecting cup cannot be opened once, the dust collecting cup needs to be repeatedly opened and closed for a plurality of times, so that the time is wasted, and the service life of the dust collecting cup is extremely unfavorable.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a vacuum cleaner capable of cleaning dust of a filter screen in a dust cup without opening the dust cup.

In order to achieve the purpose of the invention, the invention adopts the following technical scheme: a vacuum cleaner, comprising:

A body;

A handle portion defined by the body and located at a rear of the body;

A dust inlet duct portion having a dirty air inlet, the dust inlet duct portion being defined by a front portion of the body and the dirty air inlet being located at a front end of the body;

A vacuum motor mounted on the body, the vacuum motor for generating a suction force and drawing a dust-laden air stream into the dirty air inlet;

the dust collecting cup is arranged on the body, a dust chamber for receiving and storing dust is arranged in the dust collecting cup, and the dust inlet pipe, the dust collecting cup and the vacuum motor are sequentially communicated with each other in an airflow mode;

the filter screen is positioned in the dust collection cup, and air can flow out of the dust collection cup after passing through the filter screen;

The dust wiping device comprises a dust wiping piece which is positioned in the dust collecting cup and at least partially clings to the outer surface of the filter screen, and an operating piece which can be operated from the outside to drive the dust wiping piece to move along the outer surface of the filter screen;

Said operating member being at least partially located on and movable relative to the outer surface of said dirt cup; when the user operates the operating member to move relative to the outer surface of the dust cup, the dust wiping member is driven to move along the outer surface of the filter screen to wipe dust attached to the outer surface of the filter screen.

In the above technical solution, preferably, the operating member is C-shaped and is clamped on the outer wall surface of the dust cup. Further preferably, a recess is provided in the outer wall surface of the dust cup, and the operating member is at least partially received in the recess.

In the above technical solution, preferably, at least a portion of the outer surface of the filter screen is a cylindrical surface or a conical surface, the filter screen has a center line, the dust cleaning member is hinged in the dust collecting cup through a pivot, and the center line of the filter screen coincides with the axis line of the pivot; when the dust wiping piece rotates around the axial lead, the dust wiping piece moves along the outer surface of the filter screen to wipe dust attached on the outer surface of the filter screen. Further preferably, the operating member is disposed on an outer wall surface of the dust collecting cup and capable of moving radially along the dust collecting cup, and a transmission mechanism is disposed between the operating member and the dust wiping member, and the transmission mechanism at least comprises a reversing unit capable of transmitting the acting force applied to the operating member by a user to the dust wiping member after changing the direction. Further preferably, the transmission mechanism comprises a rack fixedly arranged with the operation piece and a gear in transmission engagement with the rack; still more preferably, at least a portion of the outer surface of the dust cup is arcuate, and the gear is coaxially disposed with the dust wiping member. Or more preferably, the ash wiping piece is U-shaped, and two ends of the opening of the ash wiping piece are fixedly arranged on the pivot.

In the above technical solution, preferably, the middle part of the body has a cavity, the vacuum motor is installed in the cavity, the dust cup is installed below the dust inlet pipe part, and the rear end part of the dust cup is adjacent to the cavity.

In the above technical solution, preferably, the front end portion of the dust collecting cup has an opening, and the front side of the dust collecting cup is provided with a dust cover capable of closing and opening the opening, and the dust cover is hinged below the dust inlet pipe portion.

In the above-mentioned aspect, preferably, the body includes a first rear end portion and a second rear end portion located below the first rear end portion, a battery pack is mounted adjacent to the first rear end portion at the second rear end portion, and a space is provided between the first rear end portion and the second rear end portion, and the space is configured to be inserted with at least four fingers other than a thumb so that a user grips the handle portion with one hand.

According to the dust collecting device, the operating piece on the dust cleaning device is arranged on the outer wall surface of the dust collecting cup, so that the transmission distance between the operating piece and the dust cleaning piece can be shortened, the arrangement position of the operating piece is convenient for a user to operate, the user can clean meshes on the surface of the filter screen at any time, the dust collecting cup does not need to be opened by the cleaning wire, the operation of the user is convenient, and the user experience is greatly improved.

Drawings

FIG. 1 is a schematic perspective view of a vacuum cleaner according to an embodiment of the present invention with a dust cover in a closed position;

Figure 2 is a schematic perspective view of a vacuum cleaner according to an embodiment of the invention, with the dust cap in an open position;

FIG. 3 is a schematic front cross-sectional view of a vacuum cleaner according to an embodiment of the present invention with a dust cover in a closed position;

FIG. 4 is a schematic front cross-sectional view of a vacuum cleaner according to an embodiment of the present invention, with the dust cover in an open position;

FIG. 5 is an enlarged schematic view of FIG. 3 at A;

figure 6 is a partially exploded schematic illustration of a vacuum cleaner with the dust cap in an open position and the dirt cup removed from the body in accordance with an embodiment of the invention;

FIG. 7 is an enlarged schematic view of the front half of FIG. 3;

figure 8 is a schematic view of the internal structure of a dust cup and the arrangement of the dust wiping device according to an embodiment of the invention;

FIG. 9 is a schematic view of an ash wiping element moving over an outer surface of a filter screen according to an embodiment of this invention;

FIG. 10 is a schematic diagram of the transmission relationship of an ash wiping device according to an embodiment of this invention;

Wherein: 100. a vacuum cleaner; 1. a body; 11. a front end portion; 12. a first rear end portion; 13. a second rear end portion; 14. a handle portion; 15. a void; 16. a dust inlet pipe part; 161. a dirty air inlet; 102. a cavity; 5. a battery pack; 3. a dust cup; 31. a dust collection chamber; 32. an opening; 4. a cup cover; 8. a locking device; 301. a slot; 82. a spring; 103. a locking pin; 81. releasing the switch; 33. a filter screen; 331. a mesh; 9. an ash wiping device; 91. an ash wiping piece; 92. an operating member; 93. a transmission mechanism; 332. an outer surface; 333. a center line; 94. a pivot; 941. an axial lead; 301. a concave portion; 931. a rack; 932. a gear.

Detailed Description

In order to describe the technical content, constructional features, achieved objects and effects of the invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.

The vacuum cleaner 100 shown in fig. 1-2 comprises a body 1, the body 1 having a front end 11, a first rear end 12 and a second rear end 13. The rear part of the body 1 forms a U-shaped structure with an opening towards the rear side, defined by a first rear end 12 and a second rear end 13. The portion of the body 1 extending in an arc from the front end 11 to the first rear end 12. The arc-shaped part body 1 forms a handle portion 14 at a position adjacent to the first rear end 12, the handle portion 14 being arranged in an elongated configuration for gripping by a user. A space 15 is provided between the first rear end portion 12 and the second rear end portion 13, the space 15 being configured to allow insertion of at least four fingers other than a thumb so that a user grips the handle portion 14 with one hand. The front part of the body 1 forms a dust inlet pipe portion 16, and a dirty air inlet 161 communicating with the dust inlet pipe portion 16 is provided in the front end 11 of the body 1. A battery pack 5 is also mounted at the second rear end 13 in this example. Referring to fig. 3, the body 1 is defined at a central portion thereof with a cavity 102 having an upper and lower height corresponding to the total height of the first rear end cavity 12, the gap 15 and the second rear end 13. The chamber 102 is used to house a vacuum motor (not shown) that generates suction and draws a dust laden airstream into a dirty air inlet 161. The battery pack 5 is capable of providing electrical power to the vacuum motor within the chamber 102 when the cleaner 100 is in operation.

As shown in fig. 3-4, the dust cup 3 has a dust chamber 31 inside, and the dust chamber 31 communicates with a dirty air inlet 161 through an internal passage of the dust inlet pipe section 16. The front end of the dust collecting cup 3 is combined with an opening 32 which is communicated with the dust collecting chamber 31, and the dust contained in the dust collecting chamber 31 can be discharged from the dust collecting cup 3 through the opening 32; the rear end of the dirt cup 3 is connected in the middle of the body 1 and interfaces with the cavity 102. The front lower part of the dust inlet pipe part 16 is provided with a cup cover 4 for closing and opening the opening 32 of the front end part of the dust collecting cup 3, and the cup cover 4 is hinged on the lower wall surface of the dust inlet pipe part 16 through a pivot 41 so as to be capable of pivotally moving between a closing position and an opening position; the cup cover 4 in this example is arranged to be capable of being turned upside down relative to the dirt cup 3. ; wherein when the cup lid 4 is in the closed position, the cup lid 4 seals the opening 32 of the dust cup 3; and when the cover 4 is in the open position, dust can be discharged from the opening 32 of the dirt cup 3.

In order to enable cleaning of the dust cup, the dust cup 3 is mounted lying on the underside of the dust inlet pipe portion 16 as shown in fig. 5 and is detachably mounted in a direction of detachment in the up-down direction, and the detachment is an operation which is performed after the cup cover 4 is opened.

As shown in fig. 3, 4 and 6, a locking device 8 is provided between the dirt cup 3 and the body 1, the locking device 8 comprising a slot 301 provided in the dirt cup 3, a locking pin 103 supported on the body 1 by a spring 82 and a release switch 81 operatively mounted on the body 1. When the lock pin 103 is partially inserted into the slot 301, the dust cup 3 is fixed with the body 1; when the locking pin 103 is slid out of the slot 301, the dirt cup 3 can be detached from the body 1. In this example, the release switch 81 is slidably disposed at the bottom of the body 1, and the release switch 81 is fixedly connected to the lock pin 103, so that when the user operates the release switch 81 to slide, the lock pin 103 slides along with the release switch and slides out of the slot 301. When the user installs the detached dust cup 3 on the body 1, the user pushes the dust cup 3 upward, the dust cup 3 presses the locking pin 103 and causes the spring 82 to be compressed, and when the dust cup 3 is installed in place, the locking pin 103 and the slot 301 face each other, and the locking pin 103 automatically slides into the slot 301 under the restoring force of the spring 82, thereby locking the dust cup 3 and the body 1.

In this example, the dust inlet pipe portion 16, the handle portion 14, the vacuum motor and the body 1 are formed as a single integral piece which is inseparable. In other cases, portions such as the dust inlet pipe portion 16 and the handle portion 14 may be provided in a removable structure.

As shown in fig. 7 to 8, a filter screen 33 is provided in the dust cup 3, the filter screen 33 has a plurality of mesh holes 331, the dust-containing air flow entering the inside of the dust cup 3 through the dust inlet pipe portion 16 can rotate inside the dust cup 3, then large particle dust having a size larger than the mesh holes 331 will remain inside the dust cup 3, and the air entraining small particle dust can flow outside the dust cup 3 after passing through the mesh holes 331 of the filter screen 33. During this process, some dust particles or suspended dust may adhere to the outer surface of the filter screen 33 or clog in the mesh holes 331 due to various problems, which may cause the internal vacuum pressure of the dust cup 3 to be lowered, thereby affecting the air-ash separation efficiency. For this purpose, in the present case, an ash wiping device 9 is provided on the vacuum cleaner 1, which is capable of cleaning the outer surface of the soiled filter screen 33.

As shown in fig. 9-10, the dust wiping device 9 comprises a dust wiping member 91 located inside the dust cup 3, an operating member 92 located outside the dust cup 3, and a transmission mechanism 93 arranged between the dust wiping member 91 and the operating member 92. The outer surface 332 of the filter 33 is arcuate and has a centerline 333. The dust removing member 91 has a U-shaped structure, and both ends of its opening are fixedly mounted on a pivot shaft 94, and the center line 333 of the outer surface 332 coincides with the axis line 941 of the pivot shaft 94. The transmission mechanism 93 includes a rack 931 and a gear 932 in driving engagement with the rack 931. In this example, the rack 931 is integrally provided with the operating member 92, and the gear 932 is coaxially provided with the dust wiping member 91. The combination of the rack 931 and the gear 932 constitutes a reversing unit capable of redirecting the force applied by the user to the operating member 92 and transmitting it to the dust wiping member 91.

As shown in fig. 7, a recess 301 is provided in the outer wall surface of the dust cup 3, and the operating member 92 is C-shaped and is caught at the recess 301 in the outer wall surface of the dust cup 3.

As shown in fig. 1, 2 and 9, the operating member 92 is provided on the outer wall surface of the dust cup 3 so as to be movable in the radial direction of the dust cup 3 (i.e., in the inward and outward directions of the dust cup 3). When the user drives the operation member 92 from outside the dust cup 3 to move inside and outside (i.e., move inward toward the direction of being close to the outer wall surface of the dust cup and move outward toward the direction of being far away from the outer wall surface of the dust cup), the operation member 92 transmits power to the dust removing member 91 through the transmission mechanism 93, and the dust removing member 91 rotates about the axis 941 of the pivot 94, and at this time the dust removing member 91 moves along the outer surface 332 of the filter screen 33 to remove dust adhering to the outer surface of the filter screen 33.

In this case, by providing the dust wiping device 9 on the dust collecting cup 3, the user can clean the filter screen 33 in the dust collecting cup 3 at any time, and the dust adhered or stuck on the outer surface of the filter screen 33 can be cleaned by the operation, so that the mesh opening is kept smooth at all times, and the suction power is always kept at the maximum value.

The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims

1. A vacuum cleaner, comprising:

The middle part of the body is provided with a cavity;

A handle portion defined by the body and located at a rear of the body;

a vacuum motor mounted on said body and positioned within said chamber, said vacuum motor for generating a suction force and drawing a dusty air stream into said dirty air inlet;

A dust collecting cup mounted on the body, the dust collecting cup being positioned below the dust inlet pipe portion and the rear end portion of the dust collecting cup being adjacent to the cavity, the dust collecting cup having a dust chamber therein for receiving and storing dust, the dust inlet pipe, the dust collecting cup and the vacuum motor being in airflow communication in sequence;

The filter screen is positioned in the dust collecting cup, air can flow out of the dust collecting cup after passing through the filter screen, at least part of the outer surface of the filter screen is a cylindrical surface or a conical surface, and the filter screen is provided with a central line; and

The dust cleaning device comprises a dust cleaning piece which is positioned in the dust collecting cup and at least partially clings to the outer surface of the filter screen, and an operating piece which can be operated from the outside to drive the dust cleaning piece to move along the outer surface of the filter screen, wherein the dust cleaning piece is hinged in the dust collecting cup through a pivot, and the central line of the filter screen is overlapped with the axial line of the pivot; when the ash wiping piece rotates around the axial lead, the ash wiping piece moves along the outer surface of the filter screen to wipe off dust attached to the outer surface of the filter screen; the method is characterized in that:

The operating piece is C-shaped and is clamped on the outer wall surface of the dust cup, and at least part of the operating piece is positioned on the outer surface of the dust cup and can move relative to the outer surface of the dust cup; when the user operates the operating member to move relative to the outer surface of the dust cup, the dust wiping member is driven to move along the outer surface of the filter screen to wipe dust attached to the outer surface of the filter screen.

2. A vacuum cleaner as claimed in claim 1, wherein: the outer wall surface of the dust cup is provided with a concave part, and the operating piece is at least partially accommodated in the concave part.

3. A vacuum cleaner as claimed in claim 1, wherein: the dust collecting device is characterized in that the operating piece can be arranged on the outer wall surface of the dust collecting cup in a radial moving way along the dust collecting cup, and a transmission mechanism is arranged between the operating piece and the dust wiping piece.

4. A vacuum cleaner according to claim 3, wherein: the transmission mechanism comprises a rack fixedly arranged with the operating piece and a gear in transmission engagement with the rack.

5. The vacuum cleaner of claim 4, wherein: at least part of the outer surface of the dust collecting cup is an arc-shaped surface, and the gear and the dust wiping piece are coaxially arranged.

6. A vacuum cleaner as claimed in claim 1, wherein: the dust wiping piece is U-shaped, and two ends of the opening of the dust wiping piece are fixedly arranged on the pivot.

7. A vacuum cleaner as claimed in claim 1, wherein: the front end of the dust collecting cup is provided with an opening, the front side of the dust collecting cup is provided with a dust cover which can close and open the opening, and the dust cover is hinged at the front end of the body.

8. A vacuum cleaner as claimed in claim 1, wherein: the body includes a first rear end portion and a second rear end portion located below the first rear end portion, a battery pack is mounted at the second rear end portion adjacent to the first rear end portion, a space is provided between the first rear end portion and the second rear end portion, and the space is configured to be inserted with at least four fingers other than a thumb so that a user can grasp the handle portion with a single hand.