CN210204615U

CN210204615U - Cleaning tool

Info

Publication number: CN210204615U
Application number: CN201920517137.2U
Authority: CN
Inventors: Haiping Liu; 刘海平; Lu Guo; 郭露
Original assignee: Suzhou Cleva Electric Appliance Co Ltd
Current assignee: Suzhou Cleva Electric Appliance Co Ltd
Priority date: 2019-04-17
Filing date: 2019-04-17
Publication date: 2020-03-31
Anticipated expiration: 2029-04-17

Abstract

The utility model discloses a cleaning tool, include the instrument main part, locate the fan subassembly of instrument main part and with the dust collecting device of fan subassembly gaseous intercommunication, cleaning tool is still including locating the round brush subassembly of instrument main part, the round brush subassembly includes the round brush, cleaning tool is still including locating the lower cover of instrument main part, fixed locating the strip of scraping of lower cover and movably locating the swing arm of lower cover, scrape the strip with the round brush definition with the passageway of dust collecting device gaseous intercommunication, the surface that cleaning tool marchs is the working face, works as the swing arm contact when being supported and pressed the come-up behind the working face, thereby the swing arm butt scrape the strip and drive scrape the strip come-up. The cleaning tool has small advancing resistance and good sealing and dust guiding effects on any working surface, and greatly improves the dust collection performance.

Description

Cleaning tool

Technical Field

The present invention relates to a cleaning tool.

Background

The suction opening assembly of robot sweeps floor is in the machine bottom, in order to guarantee that the robot of sweeping floor normally walks, the lower extreme of suction opening needs to have certain distance from ground, and the performance of suction opening end will reduce like this for the dust can be omitted.

As shown in fig. 1 and 2, in order to make the suction port end of the sweeping robot play an effective role in sealing and blocking dust, a technician adds a scraping strip 10 at the rear end of the suction port, the scraping strip 10 is fixedly arranged on a lower cover 12, and the scraping strip 10 also plays a role in guiding dust. In addition, in order to ensure sealing and avoid dust leakage, the wiper strip 10 is in interference fit with the ground, so that friction is increased. Also, when the sweeping robot travels from the hard floor to the carpet, the traveling resistance is greater because the wiper strip 10 is stationary.

Disclosure of Invention

The invention aims to provide a cleaning tool which has small running resistance on any working surface, good sealing and dust guiding effects and greatly improved dust collection performance.

In order to achieve one of the above objects, according to one embodiment of the present invention, there is provided a cleaning tool including a tool main body, a fan assembly provided in the tool main body, and a dust collecting device in gas communication with the fan assembly, the cleaning tool further including a roller brush assembly provided in the tool main body, the roller brush assembly including a roller brush,

wherein: cleaning means is still including locating lower cover (44), the fixed strip (46) of scraping of lower cover (44) and movably locating of instrument main part (20) swing arm (48) of lower cover (44), scrape strip (46) with round brush (26) definition with dust collector (24) looks gaseous passageway (50) that communicate, the surface that cleaning means marchs is the working face, if the come-up behind the swing arm contact working face, thereby swing arm (48) butt scrape the strip and drive scrape strip (46) and upwards float.

As a further improvement of the embodiment of the invention, one end of the scraping strip (46) is fixed on the lower cover (44), the other end of the scraping strip (46) is a free end (54), the traveling direction of the cleaning tool is defined as the front, and the lowest endpoint (52) of the swing arm (48) which is closest to the working surface is positioned in front of the tail end (56) of the free end (54).

As a further improvement of an embodiment of the present invention, the swing arm is rotatably disposed on the lower cover, and when the swing arm is pushed by the working surface, the swing arm rotates at a certain angle relative to the lower cover and urges the lower cover to move upward relative to the tool main body, so as to drive the wiper strip to move upward.

As a further improvement of an embodiment of the present invention, a reset member is provided between the swing arm and the lower cover.

As a further improvement of an embodiment of the present invention, the wiper strip includes a fixed portion fixedly connected to the lower cover, and an inclined portion connected to the fixed portion and forming an obtuse angle, the inclined portion being gradually thinner from the fixed portion toward a direction away from the fixed portion, and the free end being located at the inclined portion.

As a further improvement of an embodiment of the present invention, a side of the inclined portion facing away from the traveling direction of the cleaning tool is provided with a first groove, and the first groove is provided closer to the free end.

As a further improvement of an embodiment of the present invention, a second groove is further provided on a side of the inclined portion facing away from the traveling direction of the cleaning tool, and the second groove is disposed closer to the fixing portion.

As a further improvement of an embodiment of the present invention, the swing arm includes a body portion, a connecting portion provided in the body portion and rotatably connected to the lower cover, and a contact portion provided in the body portion, the contact portion being in contact with the working surface, and the body portion being in contact with the wiper strip.

As a further improvement of an embodiment of the present invention, the swing arm has a rotation axis, and at least two of the contact portions are provided at an interval in an extending direction of the rotation axis.

As a further improvement of an embodiment of the present invention, the contact portion is provided with a guide portion for facilitating the pushing.

As a further improvement of the embodiment of the present invention, the cleaning tool is a sweeping robot, and the sweeping robot includes a first driving wheel, a second driving wheel, a universal wheel rotatably disposed on the tool main body, and a rechargeable battery disposed on the tool main body for providing power to the sweeping robot

Compared with the prior art, the invention has the beneficial effects that: because the scraping strip is fixedly arranged on the lower cover, the swing arm is movably arranged on the lower cover, and the swing arm can drive the scraping strip to float up and down, so that the advancing resistance is smaller, and the sealing effect is better. In addition, the lowest end point of the swing arm, which is closest to the working surface, is positioned in front of the tail end of the free end. When the cleaning tool advances from a harder working surface to a softer carpet working surface, the swing arm firstly contacts the carpet and is pushed by the carpet to move relative to the lower cover so as to drive the scraping strip to move upwards, so that the depth of the scraping strip entering the carpet is smaller, the sealing dust guiding effect of the scraping strip is ensured, and the advancing resistance of the cleaning tool is reduced. When the cleaning tool works on a harder working surface, the scraping strip is in close contact with the working surface, and the sealing and dust guiding effects are also ensured. Therefore, the cleaning tool has small running resistance on any working surface, good sealing and dust guiding effects and greatly improved dust collection performance.

Drawings

FIG. 1 is a front view of a prior art lower cover and wiper strip;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a bottom view of a cleaning implement provided by an embodiment of the present invention;

FIG. 4 is a top view of the cleaning tool of FIG. 3;

FIG. 5 is a cross-sectional view at B-B of FIG. 4, with the cleaning tool traveling against a harder work surface;

FIG. 6 is an enlarged partial schematic view at E in FIG. 5;

FIG. 7 is a cross-sectional view at C-C of FIG. 4, with the cleaning implement traveling from a harder working surface to a softer carpet;

FIG. 8 is an enlarged partial schematic view at F of FIG. 7;

FIG. 9 is a cross-sectional view taken at D-D of FIG. 4, with the cleaning tool traveling over a relatively soft carpet;

FIG. 10 is an enlarged partial schematic view at G of FIG. 9;

FIG. 11 is a schematic perspective view of a wiper strip of a cleaning tool according to an embodiment of the present invention;

fig. 12 is a perspective view of a swing arm of a cleaning tool according to an embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

In the various illustrations of the present application, certain dimensions of structures or portions may be exaggerated relative to other structures or portions for ease of illustration and, thus, are provided to illustrate only the basic structure of the subject matter of the present application.

Also, terms used herein such as "upper," "above," "lower," "below," and the like, denote relative spatial positions of one element or feature with respect to another element or feature as illustrated in the figures for ease of description. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 3 to 6, the preferred embodiment of the present invention discloses a cleaning tool, which comprises a tool body 20, a fan assembly 22 disposed on the tool body 20, and a dust collecting device 24 in air communication with the fan assembly 22, and a rolling brush assembly disposed on the tool body 20, wherein the rolling brush assembly comprises a rolling brush 26.

Specifically, in this embodiment, the cleaning tool is a sweeping robot. Of course, the cleaning tool may also be a manual cleaning tool. The sweeping robot comprises a first driving wheel 28, a second driving wheel 30, a universal wheel 32 and a rechargeable battery, wherein the first driving wheel 28, the second driving wheel 30 and the universal wheel 32 are rotatably arranged on the tool body 20, and the rechargeable battery is arranged on the tool body 20 and is used for providing power for the sweeping robot. The rechargeable battery includes a first charging tab 34 and a second charging tab 36, the first charging tab 34 and the second charging tab 36 are symmetrically disposed on the tool body 20, and in particular, the first charging tab 34 and the second charging tab 36 are disposed on both sides of the universal wheel 32. The cleaning tool further includes a stationary cover assembly 38 provided to the tool body 20, and the roll brush 26 is provided to the stationary cover assembly 38. In addition, the cleaning tool further includes at least one side brush, and further, two side brushes, i.e., a left side brush 40 and a right side brush 42, are provided, and the left side brush 40 and the right side brush 42 are provided on the tool body 20 symmetrically to each other.

The cleaning tool further comprises a lower cover 44 arranged on the tool main body 20, a scraping strip 46 fixedly arranged on the lower cover 44 and a swing arm 48 movably arranged on the lower cover 44, wherein the swing arm 48 can drive the scraping strip 46 to float up and down, so that the advancing resistance is small, and the sealing effect is good. Here, with reference to the surface on which the cleaning tool travels, the movement in the direction away from the surface is upward floating, and the movement in the direction close to the surface is downward floating.

The wiper strip 46 and the roller brush 26 define a passage 50 in gaseous communication with the dust collecting device 24, one end of the wiper strip 46 is fixed to the lower cover 44, the other end of the wiper strip 46 is a free end 54 defining the direction of travel of the cleaning tool as the front, the surface on which the cleaning tool travels is the working surface, and the lowermost point 52 of the swing arm 48 closest to the working surface is located in front of the extreme end 56 of the free end 54.

In the preferred embodiment, since the wiper strip 46 is fixedly disposed on the lower cover 44, the swing arm 48 is movably disposed on the lower cover 44, and the lowest point 52 of the swing arm 48, which is closest to the working surface, is located in front of the extreme end 56 of the free end 54. When the cleaning tool advances from a harder working surface to a softer carpet working surface, the swing arm 48 contacts the carpet first and is pushed by the carpet to move relative to the lower cover 44 to drive the scraping strip 46 to move upwards, so that the depth of the scraping strip 46 entering the carpet is smaller, the sealing and dust guiding effects of the scraping strip 46 are ensured, and the advancing resistance of the cleaning tool is reduced. The upward direction is referred to as the working surface, and the movement in the direction away from the working surface is upward, and correspondingly, the movement in the direction close to the working surface is downward. When the cleaning tool works on a harder working surface, the scraping strip 46 is in close contact with the working surface, and the sealing and dust guiding effects are also ensured. Therefore, the cleaning tool has small running resistance on any working surface, good sealing and dust guiding effects and greatly improved dust collection performance.

To further ensure the sealing and dust guiding effect of the scraper bar 46, the minimum clearance between the roller brush 26 and the scraper bar 46 is not more than 0.5 mm.

The cleaning implement further includes a suction port member 47, the suction port member 47 defining a suction port 49 in gaseous communication with the dust collecting unit 24, and a sealing ring 51 disposed between the suction port member 47 and the dust collecting unit 24 for improved sealing. In addition, a suction port 47 covers a part of the outer periphery of the roll brush 26, and a suction port 49 is also in air communication with the passage 50.

Specifically, in the embodiment, the swing arm 48 is rotatably disposed on the lower cover 44, and when the swing arm 48 is pushed by the working surface, the swing arm 48 rotates a certain angle relative to the lower cover 44 to drive the scraper bar 46 to move upward. Of course, in other embodiments, the swing arm 48 can be moved upward by a direct upward floating motion, such as a sliding track.

With particular reference to fig. 5 and 6, as the cleaning implement travels over a relatively hard working surface, the extreme end 56 of the wiper strip 46 is in intimate contact with the working surface, and in particular, the wiper strip 46 has an interference with the working surface, and preferably, the interference between the wiper strip 46 and the working surface is approximately 0.1 mm. By the arrangement, the sealing and dust guiding effects of the scraping strip 46 can be ensured, and the travelling resistance of the cleaning tool is small.

As shown in fig. 7 and 8, when the cleaning tool is in transition from a harder working surface to a softer carpet working surface, the swing arm 48 contacts the carpet first, and the swing arm 48 is pushed by the carpet to rotate relative to the lower cover 44 and push the lower cover 44 to move upwards, and the lower cover 44 can drive the scraping strip 46 to move upwards as the scraping strip 46 is fixedly arranged on the lower cover 44, so that the depth of the scraping strip 46 entering the carpet is smaller due to the floating of the scraping strip 46, and the sealing and dust guiding effects of the scraping strip 46 are ensured, and the traveling resistance is smaller.

As shown in fig. 9 and 10, after the cleaning tool has fully traveled to the softer carpet work surface, the wiper strip 46 bends back as the resistance of the carpet is greater, further reducing the travel resistance of the cleaning tool and making the travel of the cleaning tool smoother. When the cleaning tool returns to the hard working surface again, because of no upward pushing of the carpet, the scraping strip 46 and the lower cover 44 depend on the self weight and the self elasticity of the scraping strip 46, the scraping strip 46 moves a certain distance downwards along with the lower cover 44, and the scraping strip 46 returns to the unbent state from the bending state, thereby ensuring that the scraping strip 46 is in close contact with the working surface.

Further, a reset member (not shown) is provided between the swing arm 48 and the lower cover 44. To ensure that the swing arm 48 automatically resets when the cleaning implement is returned from the carpet to a harder working surface. The reset piece can be arranged as an elastic piece such as a torsion spring or a pressure spring.

With further reference to fig. 11, the wiper strip 46 includes a fixed portion 58 fixedly connected to the lower cover 44, and an inclined portion 60 connected to the fixed portion 58 and forming an obtuse angle, wherein the inclined portion 60 is gradually thinner from the fixed portion 58 toward a direction away from the fixed portion 58, and the free end 54 is located at the inclined portion 60. The inclined portion 60 is provided in a tapered configuration to facilitate bending of the wiper strip 46.

Specifically, the side of the inclined portion 60 facing away from the direction of travel of the cleaning tool is provided with a first groove 62, the first groove 62 being disposed closer to the free end 54. Preferably, the first groove 62 is provided as an arc-shaped slot. So that the wiper strip 46 is more easily bent when the cleaning tool is advanced to the carpet. In addition, a second groove 64 is further formed on one side of the inclined portion 60 facing away from the traveling direction of the cleaning tool, and the second groove 64 is disposed closer to the fixing portion 58. The second groove 64 is also provided as an arc-shaped slot. Of course, the first and

second grooves

62, 64 may be provided in other configurations.

With further reference to fig. 12, the swing arm 48 includes a body portion 66, a connecting portion 68 provided to the body portion 66 and rotatably connected to the lower cover 44, and a contact portion 70 provided to the body portion 66, the contact portion 70 being in contact with the work surface. The connecting portion 68 includes two coaxial shafts 72 spaced apart from each other, and the two shafts 72 are rotatably connected to the lower cover 44. The two contact portions 70 are spaced apart from each other, the two contact portions 70 are located at two ends of the body portion 66, the wiper strip 46 is located between the two contact portions 70, and the wiper strip 46 abuts against the body portion 66, so that the swing arm 48 can drive the wiper strip 46 to float up and down.

The swing arm 48 has a rotation axis 74, and the rotation axis 74 is the axis of the rotation shaft 72, and at least two contact portions 70 are provided at intervals in the extending direction of the rotation axis 74. Preferably, the two contact portions 70 are disposed at two opposite ends of the body portion 66, respectively, and are symmetrically disposed with respect to each other.

The contact portion 70 is provided with a guide portion for facilitating the pushing. The guide portion is provided in an arc shape to reduce the traveling resistance and facilitate the climbing of the cleaning tool, such as the traveling from a hard working surface to a carpet.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. A cleaning tool comprising a tool body (20), a fan assembly (22) provided to the tool body (20), and a dust collecting device (24) in gaseous communication with the fan assembly (22), the cleaning tool further comprising a roller brush assembly provided to the tool body (20), the roller brush assembly comprising a roller brush (26),

the method is characterized in that: the cleaning tool is characterized by further comprising a lower cover (44) arranged on the tool main body (20), a scraping strip (46) fixedly arranged on the lower cover (44) and a swing arm (48) movably arranged on the lower cover (44), wherein the scraping strip (46) and the rolling brush (26) define a channel (50) communicated with the dust collecting device (24) through gas, the surface where the cleaning tool travels is a working surface, and when the swing arm contacts with the working surface and is pressed to float upwards, the swing arm (48) abuts against the scraping strip to drive the scraping strip (46) to float upwards.

2. The cleaning implement of claim 1, wherein: one end of the scraping strip (46) is fixed on the lower cover (44), the other end of the scraping strip (46) is a free end (54), the traveling direction of the cleaning tool is defined as the front direction, and the lowest endpoint (52) of the swing arm (48) which is closest to the working surface is positioned in front of the tail end (56) of the free end (54).

3. The cleaning implement of claim 1, wherein: the swing arm (48) is rotatably arranged on the lower cover (44), and when the swing arm (48) is pushed by the working surface, the swing arm (48) rotates for a certain angle relative to the lower cover (44) to drive the scraping strip (46) to move upwards.

4. The cleaning implement of claim 3, wherein: a reset piece is arranged between the swing arm (48) and the lower cover (44).

5. The cleaning implement of claim 2, wherein: the scraping strip (46) comprises a fixing portion (58) fixedly connected with the lower cover (44) and an inclined portion (60) which is connected with the fixing portion (58) and forms an obtuse angle, the inclined portion (60) becomes thinner gradually from the fixing portion (58) to the direction far away from the fixing portion (58), and the free end (54) is located on the inclined portion (60).

6. The cleaning implement of claim 5, wherein: the side of the inclined part (60) opposite to the advancing direction of the cleaning tool is provided with a first groove (62), and the first groove (62) is arranged closer to the free end (54).

7. The cleaning implement of claim 5, wherein: one side of the inclined part (60) back to the advancing direction of the cleaning tool is also provided with a second groove (64), and the second groove (64) is arranged close to the fixing part (58).

8. The cleaning implement of claim 1, wherein: the swing arm (48) comprises a body part (66), a connecting part (68) which is arranged on the body part (66) and is rotationally connected with the lower cover (44), and a contact part (70) which is arranged on the body part (66), wherein the contact part (70) is contacted with the working surface, and the body part is abutted against the scraping strip.

9. The cleaning implement of claim 8, wherein: the swing arm (48) has a rotation axis (74), and at least two contact portions (70) are provided at an interval in the extending direction of the rotation axis (74).

10. The cleaning implement of claim 8, wherein: the contact part (70) is provided with a guide part which is convenient for pushing.

11. The cleaning implement of claim 1, wherein: the cleaning tool is a sweeping robot, the sweeping robot comprises a first driving wheel (28), a second driving wheel (30), a universal wheel (32) and a rechargeable battery, wherein the first driving wheel, the second driving wheel, the universal wheel and the universal wheel are rotatably arranged on a tool main body (20), and the rechargeable battery is arranged on the tool main body (20) and provides power for the sweeping robot.