CN215272515U

CN215272515U - Cleaning base for a surface cleaning apparatus

Info

Publication number: CN215272515U
Application number: CN202121474205.5U
Authority: CN
Inventors: 不公告发明人
Original assignee: Suzhou Ruijiu Intelligent Technology Co ltd
Current assignee: Suzhou Ruijiu Intelligent Technology Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-12-24
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a clean base for surface cleaning device, it includes: a base body; the top cover is detachably arranged at the upper part of the seat body; a brush roller chamber having a lower opening at a lower portion and a front opening at a front portion; and a brush roller, the peripheral surface of which is covered with a bristle layer that can be wetted by a liquid, the brush roller being rotatably disposed in the chamber, the lower portion and the front portion of the brush roller being exposed from the lower opening and the front opening, respectively; wherein the front portion of the top cover includes a pair of engagement arms and a notch located between the pair of engagement arms, the notch having a pair of side edges and a rear edge extending in a side-to-side direction, the front opening of the chamber being at least partially defined by the pair of side edges and the rear edge of the notch, the lateral distance between the pair of side edges being greater than 1/2 of the axial length of the brushroll, the rear edge being located near the highest point of the brushroll. According to the cleaning base, the brush hair layer of the brush roller and the outside air can form good circulation, and peculiar smell is not easy to generate.

Description

Cleaning base for a surface cleaning apparatus

Technical Field

The utility model relates to a cleaning device, especially a clean base for surface cleaning device.

Background

With the improvement of living standard, the surface cleaning device is increasingly becoming a common household cleaning appliance. The surface cleaning device in the prior art mainly comprises a brush roll, a liquid supply system and a dirty liquid recovery system. When cleaning operation is carried out, the liquid supply system provides cleaning liquid for the brush roller, the brush roller utilizes the cleaning liquid to clean the surface to be cleaned, and the dirty liquid recovery system recovers dirty liquid on the surface to be cleaned. In practical use, the brush roller of the surface cleaning device is found to be easily removed in time after being used, and the surface of the brush roller is easily subjected to peculiar smell or mildew due to poor ventilation, so that the next use is influenced.

Disclosure of Invention

In order to solve the above-mentioned brush roll problem, the object of the present invention is to provide an improved cleaning base for a surface cleaning apparatus.

In order to accomplish the above object, the present invention provides the following technical solutions: a cleaning base for a surface cleaning apparatus, the cleaning base being adapted to be moved over a surface to be cleaned, the cleaning base comprising: the base body is internally provided with a suction channel; the top cover is detachably arranged on the seat body; a brush roll chamber defined at least in part by the front of the housing and the top cover, the brush roll chamber having a lower opening at a lower portion and a front opening at a front portion; and a brush roller having an outer peripheral surface covered with a brush layer capable of being wetted with a liquid, the brush roller being rotatably disposed in the brush roller chamber with a brush roller axis, a lower portion and a front portion of the brush roller being exposed from the lower opening and the front opening, respectively; wherein the front portion of the top cover includes a pair of engagement arms and a gap between the pair of engagement arms, the gap having a pair of side edges and a rear edge extending in a side-to-side direction, the front opening of the brush roll chamber being at least partially defined by the pair of side edges and the rear edge of the gap, the lateral distance between the pair of side edges being greater than 1/2 of the axial length of the brush roll, the rear edge being located near the highest point of the brush roll.

In the above technical solution, preferably, the rear edge is located directly above or behind the highest point of the brush roller.

In the above technical solution, preferably, the cleaning base further includes: the second scraping strip is installed at the front part of the seat body and extends along the left-right direction, and the second scraping strip extends into the brush roller cavity and is abutted against the bristle layer of the brush roller; said second wiper strip being located downstream of said lower opening and said front opening being located downstream of said second wiper strip with respect to the direction of rotation of said brush roll; the part of the brush roller cavity between the second scraping strip and the lower opening is in fluid flow with the suction channel.

Preferably, the inner wall surface of the top cover is provided with a flow blocking strip extending along the left-right direction, and one end part of the flow blocking strip is in contact with the bristle layer of the brush roll; the flow-resisting strips are positioned at the downstream of the second scraping strips in terms of the rotating direction of the brush roller; the resistive strips are configured to block excess cleaning fluid not absorbed by the bristle layer of the brush roll from exiting the front opening.

In the above technical solution, preferably, the cleaning base further includes: and at least one first liquid supply nozzle for supplying and distributing cleaning liquid to the bristle layer of the brush roller, wherein the at least one first liquid supply nozzle is arranged at the front part of the seat body and is positioned above the second scraping strip and below the flow resisting strip.

In the above technical solution, preferably, the base includes a first side portion and a second side portion opposite to each other, and the brush roller is located between the first side portion and the second side portion. Further preferably, the first side portion includes a detachable front portion, and one end portion of the brush roller is rotatably supported on an inner wall surface of the front portion. More preferably, the pair of engaging arms of the top cover are engaged with an upper edge of the front portion and a partial upper edge of the second side portion, respectively.

Or more preferably, the cleaning base further comprises: the side brush is rotatably supported on the outer wall surface of the front part around a horizontal axis and at least partially protrudes outwards from the outer contour of the first side part in the lateral direction, the side brush is coupled with the brush roller, and the horizontal axis and the brush roller axis are on the same straight line.

Further preferably, the front portion, the side brushes and the brush roll form a module that is detachable from the cleaning base.

Compared with the prior art, the utility model provides a clean base has set up the area of contact of top cap in order to increase brush roll and air that has the breach. After finishing cleaning operation, the brush roll can evaporate the moisture that the brush hair layer contains fast, prevents that the brush hair layer from breeding mould, improves the life of brush roll.

Drawings

Fig. 1 is a first perspective view of a cleaning base according to the present invention;

FIG. 2 is a second perspective view of the cleaning base shown in FIG. 1; wherein the top cover is removed;

FIG. 3 is an exploded view of the cleaning base shown in FIG. 1;

FIG. 4 is a schematic exploded view of the assembly of FIG. 3 including the front portion, side brushes and brush rolls;

FIG. 5 is a schematic cross-sectional view taken along A-A of FIG. 1;

fig. 6 is a schematic view of a part of the interior of the base, in which a part of the housing of the base body is removed, showing the cleaning liquid pipeline inside the base body and the transmission relationship of the motor.

Detailed Description

To explain technical contents, structural features, achieved objects and effects of the invention in detail, the technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. Moreover, the various exemplary embodiments may be different, but are not necessarily exclusive. For example, the particular shapes, configurations and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the present application, the term "enclosing" means that an object (a) is located outside another object (B) and is arranged around the other object (B) or some part of the other object (B), which object (a) may enclose either a closed loop or an open loop with an opening.

In the present application, unless expressly stated or limited otherwise, the term "coupled" is to be construed broadly, e.g., "coupled" may be a fixed connection, a removable connection, or an integral part; may be directly connected or indirectly connected through an intermediate.

Fig. 1 shows a cleaning base 1 provided by the present invention, which can be attached to a cleaning host with a solution tank, a dirty solution tank, and a suction motor for use. The cleaning base 1 is adapted to be moved over a floor surface and enables cleaning of the floor surface as well as the bottom edge of a wall to be achieved simultaneously. The cleaning base 1 includes a base body 10, a top cover 11 detachably attached to the base body 10, a brush roller 12, and side brushes 13. The following references to "front", "rear", "upper", "lower", "left" and "right" are directions as viewed from the operator standing at the rear of the cleaning base 1 with the face facing forward.

As shown in fig. 2, the base 10 has a front 101, a rear 102, a first side 103 and a second side 104. A pair of moving wheels 109 is rotatably connected to the rear portion 102 of the housing 10, and the moving wheels 109 are used for moving the cleaning base 1 back and forth on the floor. The bottom of the base 10 is fixedly connected with a first scraping strip 17. The first side 103 comprises a front part 1031 and a rear part 1030 which are separable from each other. The top cover 11 is detachably mounted on the upper portion of the front side of the housing 10, the brush roller 12 is located on the front side of the front portion 101 between the front portion 1031 and the second side portion 104, and the side brush 13 is located outside the front portion 1031.

As shown in fig. 3, the front portion of the housing 10 is further installed with a second scraping bar 19, and the second scraping bar 19 is located above the suction channel 29. A plurality of first effluent nozzles 33 and second effluent nozzles 35 are also provided at front 101 of housing 10, first effluent nozzles 33 being configured to supply and dispense cleaning solution exclusively to brush roll 12, and second effluent nozzles 35 being configured to dispense cleaning solution exclusively to side brushes 13. The housing 10 has a suction channel 29 therein, and the suction channel 29 is configured to be in fluid communication with a suction motor (not shown) for providing suction power to recover the contaminated liquid in the suction channel 29. Of these, suction motors are well known to those skilled in the art.

The front portion of the top cover 11 includes a pair of engagement arms 111 and a gap 112 between the pair of engagement arms 111. The notch 112 has a pair of side edges 1121 and a rear edge 1122 extending in the left-right direction. The transverse distance L1 between the pair of side edges 1121 is greater than 1/2 of the axial length L2 of the brush roll 12. The inner wall surface of the top cover 11 is provided with choke strips 113 extending in the left-right direction.

Top cap 11 detachable installs in the front side upper portion of pedestal 10, specifically is: the rear part of the top cover 11 is engaged with the upper edge of the front part 101 of the seat body 10, and the pair of engaging arms 111 of the top cover 11 are respectively engaged with the upper edge of the front part 1031 and part of the upper edge of the second side part 104

The front 101, the front portion 1031 of the first side 103, the second side 104, and the top cover 11 collectively define a brushroll chamber 18. The brush roller chamber 18 has a lower opening 181 towards the ground and a front opening 182 towards the front side. The lower opening 181 is located substantially flush with the bottom of the housing 10. The first wiper strip 17 is located on the rear side of the lower opening 181 and defines the rear edge of the lower opening 181, and the first wiper strip 17 is configured to be inclined downward and forward such that the front end thereof contacts the ground. Referring to fig. 1, the front opening 182 is defined at an upper portion by a pair of side edges 1121 and a rear edge 1122 of the cutout 112 and at a lower portion by a front side edge portion of the front portion 1031 and a front side edge portion of the second side portion 104. The rear edge 1122 of the top cover 11 is located directly above the highest point 120 of the brush roll 12.

With continued reference to fig. 3, the brush roller 12 has a tubular core 121 and a bristle layer 122 covering the outer peripheral wall surface of the core 121. The brush roller 12 is arranged at the brush roller chamber 18 so as to be rotatable about a brush roller axis X1. One end portion of the brush roller 12 is rotatably supported on an inner wall surface of the front portion 1031, and the other end portion of the brush roller 12 is coupled to a rotary joint 141 inside the second side portion 104. The lower and front portions of the brush roll 12 will be exposed through the lower and

front openings

181 and 182, respectively. The front opening 182 is configured to increase the contact area between the bristle layer 122 and the air, thereby increasing the evaporation rate of the moisture in the bristle layer 122.

The side brush 13 is rotatably mounted on the outer wall surface of the front portion 1031. The lower portion of the brushroll 12 passes out of the lower opening 181 so that the bristle layer 122 contacts the surface to be cleaned. The side brush 13 includes a brush holder 131 and a cleaning member 132 disposed on the brush holder 131. The side brush 13 is rotatably supported about a horizontal axis X2 at the outer wall surface of the front portion 1031. The horizontal axis X2 is aligned with the brush roller axis X1. The cleaning members 132 have portions projecting laterally outwardly to make contact with the wall when the front portion 1031 of the first side portion 103 is moved to the wall. The cleaning members 132 include at least one of bristle tufts, a blade, a wiping pad, and a sponge strip.

As shown in fig. 3-4, in this example, a drive connection 1033 is provided at the front portion 1031, by means of which drive connection 1033 the side brushes 13 are coupled to the brush roller 12. Side brushes 13, front portion 1031, and brush roll 12 can form an assembly 200, and assembly 200 is configured to be removable from housing 10 as a unitary assembly after cover 11 is removed from housing 10.

As shown in fig. 5, the second wiper strip 19 projects into the brush roller chamber 18 and abuts the bristle layer 122 of the brush roller 12, the part of the brush roller chamber 18 between the second wiper strip 19 and the lower opening 181 being in fluid flow communication with the suction channel 29. One end of the flow blocking bar 113 is also in contact with the bristle layer 122 of the brush roll 12, and the flow blocking bar 113 is configured to block excess cleaning liquid not absorbed by the bristle layer 122 of the brush roll 12 from flowing out of the front opening 182. In terms of the rotational direction R of the brush roller 12, the second wiper strip 19 is located downstream of the lower opening 181, the choke strip 113 is located downstream of the second wiper strip 19, and the front opening 182 is located downstream of the choke strip 113.

As shown in fig. 6, the cleaning base 1 is provided with a motor 14 for driving the brush roller 12 and the side brushes 13 to rotate. The motor 14 is located inside the housing 10 and is drivingly connected to the rotary joint 141 to drive the brush roller 12 and the side brushes 13. Also disposed within the cleaning base 1 are a liquid pump 30, a branch valve 31, a main passage 32 communicating the liquid pump 34 with the plurality of first liquid supply nozzles 33, and a branch flow passage 34 communicating the main passage 32 with the second liquid supply nozzles 35, the branch valve 31 being disposed in the branch flow passage 34. The bypass valve 31 is configured to: when the first side 103 contacts the wall, the main channel 32 is communicated with the branch channel 34 to provide the cleaning liquid to the second liquid supply nozzle 35; when the first side 103 is separated from the wall, the primary channel 32 is blocked from fluid communication with the bypass channel 34. In this example, the bypass valve 31 is triggered to open or close by a movable member 1034 disposed on the outer wall of the first side 103.

The working principle of the first side 103 of the cleaning base 1 is described under the working condition that the first side is far away from the wall and contacts with the wall.

When the cleaning base 1 is used for cleaning on the ground far away from the wall, the cleaning base 1 is cleaned, the liquid pump 30 is started, and under the action of the liquid pump 30, the cleaning liquid reaches the plurality of first liquid supply nozzles 33. The cleaning liquid of the first nozzle 33 wets the bristle layer 122 of the brush roller 12. The motor 14 is activated to simultaneously rotate the brush roller 12 and the side brushes 13.

When the first side 103 of the cleaning head 1 is moved into contact with the wall, the bypass valve 31 is triggered to open, and the cleaning liquid reaches the plurality of first liquid supply nozzles 33 and the plurality of second liquid supply nozzles 35 simultaneously; the cleaning fluid from the first plurality of nozzles 33 wets the brush roller 12, and the brush roller 12 cleans the floor with the cleaning fluid. The cleaning liquid from the second nozzle 35 wets the cleaning members 132 of the side brushes 13, and the rotating side brushes 13 clean the floor and the wall at the same time.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A cleaning base for a surface cleaning apparatus, the cleaning base being adapted to be moved over a surface to be cleaned, characterized in that the cleaning base (1) comprises:

the base body (10) is internally provided with a suction channel (29);

the top cover (11) is detachably arranged on the seat body (10);

a brush roll chamber (18) defined at least in part by the front portion (101) of the housing (10) and the top cover (11), the brush roll chamber (18) having a lower opening (181) at a lower portion and a front opening (182) at a front portion; and

a brush roller (12) having a peripheral surface covered with a liquid-wettable bristle layer (122), said brush roller (12) being rotatably disposed in said brush roller chamber (18) about a brush roller axis (X1), a lower portion and a front portion of said brush roller (12) being exposed from said lower opening (181) and said front opening (182), respectively;

wherein the front portion of the top cover (11) comprises a pair of engaging arms (111) and a gap (112) between the pair of engaging arms (111), the gap (112) has a pair of side edges (1121) and a rear edge (1122) extending in the left-right direction, the front opening (182) of the brush roller chamber (18) is at least partially defined by a pair of side edges (1121) and a rear edge (1122) of the gap (112), the lateral distance between the pair of side edges (1121) is greater than 1/2 of the axial length of the brush roller (12), and the rear edge (1122) is located near the highest point of the brush roller (12).

2. The cleaning base of claim 1, wherein the rear edge (1122) is located directly above or behind the highest point of the brush roll (12).

3. The cleaning base of claim 1, further comprising: the second scraping strip (19) is installed at the front part (101) of the seat body (10) and extends along the left-right direction, and the second scraping strip (19) extends into the brush roller cavity (18) and is abutted with the bristle layer (122) of the brush roller (12); said second scraping bar (19) being located downstream of said lower opening (181) and said front opening (182) being located downstream of said second scraping bar (19) with respect to the direction of rotation of said brush roller (12); the part of the brush roller cavity (18) between the second scraping strip (19) and the lower opening (181) and the suction channel (29) are in fluid flow.

4. The cleaning base according to claim 3, characterized in that the inner wall surface of the top cover (11) is provided with a flow blocking bar (113) extending in the left-right direction, and one end of the flow blocking bar (113) is in contact with the bristle layer (122) of the brush roll (12); the spoiler bar (113) is located downstream of the second scraper bar (19) with respect to the direction of rotation of the brush roller (12); the obstruction bars (113) are configured to block excess cleaning fluid not absorbed by the bristle layer (122) of the brush roll (12) from exiting the front opening (182).

5. The cleaning base of claim 4, further comprising: at least one first liquid supply nozzle (33) for supplying and distributing cleaning liquid to the bristle layer (122) of the brush roller (12), wherein the at least one first liquid supply nozzle (33) is arranged on the front portion (101) of the base body (10) and above the second scraper bar (19).

6. The cleaning base of claim 1, wherein the body (10) includes first and second opposing sides (103, 104), and the brush roll (12) is positioned between the first and second sides (103, 104).

7. The cleaning base according to claim 6, characterized in that the first side (103) comprises a detachable front portion (1031), and an end portion of the brush roller (12) is rotatably supported at an inner wall surface of the front portion (1031).

8. The cleaning foot according to claim 7, characterized in that a pair of engagement arms (111) of the top cover (11) engage with an upper edge of the front portion (1031) and a part of an upper edge of the second side portion (104), respectively.

9. The cleaning base of claim 7, further comprising: side brushes (13), the side brushes (13) are rotatably supported at the outer wall surface of the front part (1031) around a horizontal axis (X2) and at least partially protrude outwards from the outer contour of the first side part (103), the side brushes (13) are coupled with the brush roller (12), and the horizontal axis (X2) and the brush roller axis (X1) are on the same straight line.

10. A cleaning base according to claim 9, characterized in that the front part (1031), the side brushes (13) and the brush roll (12) constitute an assembly (200) which is detachable from the cleaning base (1).