CN219629545U - Surface cleaning device - Google Patents

Abstract

The utility model discloses a surface cleaning device, which belongs to the technical field of cleaning equipment and comprises a floor brush provided with a light-emitting component and a front cover component which is detachably matched with the floor brush, wherein the light-emitting component comprises a plurality of light sources, the front cover component comprises an upper cover plate, a lower cover plate, a locking structure and a light guide plate, the light guide plate comprises a light inlet part, the light inlet part is continuously arranged along the width direction of the light-emitting component, the locking structure is arranged between the upper cover plate and the light guide plate, and the region of the locking structure, which corresponds to the light guide plate and slides relatively, is the light inlet part of the light guide plate. Light rays emitted by the light sources can be emitted forward along the light guide plate after entering the light guide plate along the light inlet part, reflection and escape of the light rays when being emitted forward along the light guide plate can be greatly reduced, illumination brightness is improved, illumination requirements can be better met, and accordingly use experience of a user is improved. The light inlet part of the light guide plate is utilized to provide a sliding area for the locking structure, so that the locking structure can be effectively vertically supported.

Description

Surface cleaning device

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to a surface cleaning device.

Background

In recent years, some cleaning devices are widely applied to daily life of people, and various cleaning devices bring great convenience to the life of people, so that living experience of people is improved. The existing hand-held surface cleaning machine generally comprises a machine body, a floor brush, a water supply assembly and a dirt collection assembly, wherein a cleaning piece driven by a motor is arranged in the floor brush, the water supply assembly is used for supplying water to the cleaning piece, the cleaning piece can wet and wipe a surface to be cleaned after being soaked by water, and the dirt collection assembly is used for sucking dirt at the bottom of the floor brush and dirt scraped off by the cleaning piece into a dirt collection barrel. In order to facilitate the user to know the specific condition of the surface to be cleaned, especially the condition of the surface to be cleaned in dim spaces such as bed bottoms, cabinet bottoms, sofa bottoms and the like, some surface cleaners are provided with a light-emitting component in a machine shell of the floor brush and a light guide plate in a front cover component, and the light of the light-emitting component can be emitted out of the floor brush forward under the light guide effect of the light guide plate. Because the front cover component is generally fixed together through the detachable of buckle structure with the casing, in order to make buckle structure slide the unblock smoothly, the light guide plate is equipped with the portion of dodging that is used for dodging buckle structure, so cause the light guide plate not to set up in succession on the width direction, the light guide plate of this kind of structure still can increase the reflection of light and escape, only a few light can be along the light guide plate forward ejection, result in illumination brightness lower or illumination region less, can not fine satisfy the illumination requirement, thereby be unfavorable for improving user's use experience.

Disclosure of Invention

In order to solve the defects and shortcomings in the prior art, the utility model provides a surface cleaning device, which improves the structure of a light guide plate, improves the illumination brightness and meets the sliding requirement of a locking structure.

In order to achieve the technical purpose, the surface cleaning device provided by the utility model comprises a floor brush provided with a light emitting component and a front cover component detachably matched with the floor brush, wherein the light emitting component comprises a plurality of light sources which are distributed at intervals along the width direction of the floor brush, the front cover component comprises an upper cover plate, a lower cover plate, a locking structure and a light guide plate, the light guide plate comprises a light inlet part which is arranged adjacent to the light emitting component, the light inlet part is continuously arranged along the width direction of the light emitting component, the locking structure is arranged between the upper cover plate and the light guide plate, and the area of the locking structure, which corresponds to the light guide plate and slides relatively, is the light inlet part of the light guide plate.

Preferably, the top surface of the light inlet part is provided with a plurality of convex ribs which are distributed at intervals, and the locking structure is abutted against the convex ribs.

Preferably, the ribs extend in the front-rear direction; and/or the convex ribs are distributed at intervals along the width direction of the light guide plate.

Preferably, the light guide plate further comprises a light emitting part arranged at the front side of the light entering part and used for guiding light to the surface to be cleaned, and the width of the light entering part is consistent with that of the light emitting part and is not smaller than that of the light emitting component.

Preferably, the front end of the light emitting part is provided with a light emitting surface exposed out of the front cover assembly, and the light emitting surface is obliquely arranged and forms an included angle of 20-60 degrees with the surface to be cleaned.

Preferably, the light emitting part extends obliquely downwards and forwards from the front end of the light entering part; and/or the floor brush is provided with a cleaning piece positioned at the bottom of the front cover assembly, and at least part of the light emitting part is positioned in front of the rotation center line of the cleaning piece.

Preferably, the light incident portion includes a flat light guide area and a light incident area disposed at the rear side of the light guide area, the thickness of the light incident area is reduced from back to front, the rear end of the light incident area is provided with a light incident surface corresponding to the light emitting component, and the area where the locking structure slides relatively to the light guide plate corresponds to the light guide area.

Preferably, the height of the light incident surface is greater than the light emergent height of the light emitting component.

Preferably, the locking structure comprises two sliding blocks distributed left and right and an elastic piece arranged between the two sliding blocks, the two sliding blocks are provided with buckles at the end parts far away from each other, the ground brush is provided with clamping grooves matched with the buckles, the elastic piece is arranged to elastically deform when the two sliding blocks are stressed to slide in opposite directions so that the buckles are separated from the clamping grooves, and the two sliding blocks are driven to slide back to enable the buckles to be inserted into the clamping grooves when the two sliding blocks are loosened.

Preferably, the sliding block is provided with a sunk buckle hand concave part, and the upper cover plate is provided with an avoidance opening for avoiding the buckle hand concave part; and/or, the left side and the right side of the upper cover plate or the lower cover plate are provided with convex positioning parts, the light guide plate and the sliding block are arranged between the left positioning part and the right positioning part, and the positioning parts are provided with through grooves for the buckles to extend out of the front cover assembly.

After the technical scheme is adopted, the utility model has the following advantages:

1. according to the surface cleaning device provided by the utility model, the light inlet part of the light guide plate is continuously arranged along the width direction of the light emitting component, and the light rays emitted by the light sources can enter the light guide plate from the light inlet part and then are emitted forward along the light guide plate, so that the reflection and escape of the light rays when emitted forward along the light guide plate can be greatly reduced, the illumination brightness can be improved, the illumination requirement can be better met, and the use experience of a user can be improved. In addition, because the light inlet part is continuously arranged along the width direction of the light emitting component, the requirement on the matching precision between the light guide plate and the light emitting component can be properly reduced, and even if the light guide plate and the light emitting component are misplaced, the light rays emitted by the light source can still be emitted from the light inlet part and emitted forwards along the light guide plate. Furthermore, the light inlet part of the light guide plate is utilized to provide a sliding area for the locking structure, so that the locking structure can be effectively vertically supported, and the sliding smoothness of the locking structure is improved.

2. The locking structure is abutted against the convex rib on the top surface of the light inlet part, the surface contact between the locking structure and the top surface of the light inlet part is converted into the surface contact between the locking structure and the convex rib through the convex rib, the contact area between the locking structure and the light guide plate is greatly reduced, the friction resistance of the locking structure during sliding can be reduced, the sliding smoothness of the locking structure is improved, the operation handfeel of a user is improved, and the abrasion of the sliding of the locking structure to the light guide plate can be properly reduced.

3. The convex ribs extend along the front-back direction, the extending direction of the convex ribs is consistent with the emitting direction of the light, the proportion of the light which is emitted from the convex ribs in the forward emitting process of the light guide plate and escapes can be reduced, and the illumination brightness can be improved. The convex ribs are distributed at intervals along the width direction of the light guide plate, so that the locking structure can always prop against the convex ribs when sliding.

4. The width of the light inlet part is consistent with that of the light outlet part, and the width of the light inlet part and the width of the light outlet part are not smaller than that of the light emitting assembly, so that light rays emitted by the light source can be injected from the light inlet part as much as possible, the light rays injected from the light inlet part can be fully mixed in the light guide plate with the same width and then are emitted, and the light rays emitted from the light outlet part can be intensively irradiated on a surface to be cleaned in front of the floor brush, thereby being beneficial to improving the lighting effect.

5. The light emergent surface of the front end of the light emergent part is obliquely arranged and forms an included angle of 20-60 degrees with the surface to be cleaned, the included angle between the light emergent surface and the surface to be cleaned is reasonably arranged, and more surface areas to be cleaned are irradiated as much as possible under the condition of certain light source energy. If the included angle is smaller than 20 degrees, the area of the irradiated surface to be cleaned is smaller. If the included angle is larger than 60 degrees, the light rays irradiated on the surface to be cleaned are scattered, the illumination brightness is low, and the illumination effect is not guaranteed.

6. The light emergent portion extends downwards and forwards obliquely from the front end of the light incident portion, and an extending structure of the light emergent portion is reasonably arranged, so that light entering the light guide plate can irradiate onto a surface to be cleaned downwards obliquely and forwards along the light emergent portion. At least part of the light emitting part is positioned in front of the rotation center line of the cleaning piece, so that shielding influence of the cleaning piece on light emitted from the light emitting surface is avoided, and the light emitted from the light emitting surface is ensured to be irradiated to the surface to be cleaned as much as possible.

7. The thickness of the light entering area is reduced from the back to the front, so that the light emitted by the light source can be emitted into the light guide plate from the light entering area as much as possible, the thickness of the light guide area is reasonably reduced, the thickness of the front cover assembly is reasonably reduced, the height of the floor brush is reasonably reduced, the floor brush can enter the low space such as the bed bottom, the cabinet bottom, the sofa bottom and the like for cleaning, and the use experience of a user is improved.

8. The height of the light incident surface is larger than the light emergent height of the light emitting component, so that light rays emitted by the light emitting component can be emitted into the light incident part from the light incident surface as much as possible, illumination brightness can be improved as much as possible under the condition that the energy of the light source is certain, and the requirement on the matching precision between the light emitting component and the light guide plate can be reduced reasonably.

9. When the user applies force to the two sliding blocks to enable the two sliding blocks to slide in opposite directions to unlock the buckle and the clamping groove, the elastic piece is elastically deformed. When the user releases the sliding blocks, the elastic piece which restores the deformation drives the two sliding blocks to slide back to enable the buckles to be inserted into the clamping grooves. The concrete structure of the locking structure is reasonably arranged, the detachable matching requirement between the front cover assembly and the ground brush is met, and the operation of a user is also facilitated.

10. The slider is equipped with the buckle concave part of sinking, and the upper cover plate is equipped with the dodge mouth that is used for dodging the buckle concave part, and the user can stretch into the buckle concave part through dodging the mouth and apply force in the slider when the unblock, rationally sets up the cooperation structure between slider and the upper cover plate, can rationally reduce the thickness of slider to can rationally reduce the thickness of protecgulum subassembly, help rationally reduce the height of scrubbing brush, make scrubbing brush can get into bed end, cabinet end, sofa end etc. in low space clean, be favorable to improving user's use experience.

The light guide plate and the sliding block are arranged between the left positioning part and the right positioning part, the positioning parts are provided with through grooves for the clamping buckles to extend out of the front cover assembly, the light guide plate and the sliding block can be positioned left and right through the left positioning part and the right positioning part, and the structural stability of the light guide plate and the sliding block can be improved while the assembly difficulty is reduced.

Drawings

FIG. 1 is a schematic diagram of a surface cleaning apparatus according to an embodiment;

FIG. 2 is a front-rear sectional view of a floor brush, a front cover assembly and cleaning members of a surface cleaning apparatus according to an embodiment;

FIG. 3 is an exploded view of a floor brush, a front cover assembly and cleaning elements of a surface cleaning apparatus according to an embodiment;

FIG. 4 is a cross-sectional view of a front cover assembly and a light emitting assembly of a surface cleaning apparatus according to an embodiment;

FIG. 5 is an exploded view of a front cover assembly of a surface cleaning apparatus according to an embodiment;

FIG. 6 is a block diagram of a light emitting assembly of a surface cleaning apparatus according to an embodiment;

FIG. 7 is a block diagram of a light guide plate in a surface cleaning apparatus according to an embodiment;

FIG. 8 is a schematic diagram of a light emitting device and a light guide plate in a surface cleaning apparatus according to an embodiment;

fig. 9 is a partial cross-sectional view of a front cover assembly in a side-to-side direction of a surface cleaning apparatus according to an embodiment.

In the figure, 100-floor brushes, 110-roller brush cavities, 121-upper shells, 122-lower shells, 123-containing cavities, 130-clamping grooves, 140-scraping strips, 150-dirt inlet, 160-floor scrapers, 170-driving heads, 200-light emitting assemblies, 210-light sources, 220-lamp panels, 230-cover plates, 231-light transmitting parts, 300-front cover assemblies, 310-upper cover plates, 311-avoidance openings, 312-limiting parts, 320-lower cover plates, 330-light guide plates, 331-light inlet parts, 331 a-light inlet areas, 331 b-light guide areas, 331 c-light inlet surfaces, 332-light outlet parts, 332 a-light outlet surfaces, 333-convex ribs, 340-sliding blocks, 341-buckles, 342-buckling concave parts, 350-springs, 360-positioning parts, 361-through grooves, 400-fuselages, 500-handles, 600-cleaning pieces, 610-driving rollers, 620-driven rollers, 630-cleaning parts, 640-supporting frames.

Detailed Description

The utility model will be further described with reference to the drawings and the specific examples. It is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, as used herein, are merely based on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the devices/elements referred to must have or be configured and operated in a particular orientation and therefore should not be construed as limiting the utility model.

Example 1

Referring to fig. 1 to 9, a surface cleaning apparatus according to an embodiment of the utility model includes a floor brush 100 provided with a light emitting assembly 200 and a front cover assembly 300 detachably engaged with the floor brush 100, the light emitting assembly 200 includes a plurality of light sources 210 distributed along a width direction of the floor brush 100, the front cover assembly 300 includes an upper cover plate 310, a lower cover plate 320, a locking structure and a light guide plate 330, the light guide plate 330 includes a light incident portion 331 disposed adjacent to the light emitting assembly 200, the light incident portion 331 is continuously disposed along the width direction of the light emitting assembly 200, the locking structure is disposed between the upper cover plate 310 and the light guide plate 330, and a region of the locking structure corresponding to the light guide plate 330 that slides relatively is the light incident portion 331 of the light guide plate 330.

Because the light inlet 331 of the light guide plate 330 is continuously arranged along the width direction of the light emitting component 200, the light rays emitted by the light sources 210 of the light emitting component 200 can enter the light guide plate 330 from the light inlet 331 and then be emitted forward along the light guide plate 330, the reflection and escape of the light rays when being emitted forward along the light guide plate 330 can be greatly reduced, the illumination brightness can be improved, the illumination requirement can be better met, and the use experience of a user can be improved. In addition, since the light incident portion 331 is continuously disposed along the width direction of the light emitting assembly 200, the requirement of the matching precision between the light guide plate 330 and the light emitting assembly 200 can be properly reduced, and even if the light guide plate 330 is dislocated from the light emitting assembly 200, the light emitted from the light source 210 can be incident from the light incident portion 331 and be emitted forward along the light guide plate 330. Furthermore, the light incident portion 331 of the light guide plate 330 provides a sliding area for the locking structure, so that the locking structure can be effectively vertically supported, and the sliding smoothness of the locking structure can be improved.

Referring to fig. 1, 2 and 3, in this embodiment, the surface cleaning apparatus further includes a main body 400, a handle 500 is provided at a top end of the main body 400, a bottom end of the main body 400 is hinged to a rear side of the floor brush 100, and a width direction of the floor brush 100 is set in a left-right direction. The floor brush 100 is provided with a cleaning member 600, a roller brush cavity 110 for accommodating the cleaning member 600 is formed when the front cover assembly 300 is matched with the floor brush 100, and the cleaning member 600 is detachably mounted at the roller brush cavity 110. The floor brush 100 includes an upper case 121 and a lower case 122 fixed together and formed with a receiving cavity 123, and the light emitting assembly 200 is disposed in the receiving cavity 123 and higher than the cleaning member 600.

Referring to fig. 4 and 6, the light emitting assembly 200 further includes a light panel 220 and a cover plate 230, the light panel 220 is disposed along a left-right direction along a length direction, the light source 210 is disposed at a front side of the light panel 220, the cover plate 230 is disposed in front of the light panel 220 and is disposed opposite to the light panel 220, the cover plate 230 is provided with a light transmitting portion 231 corresponding to the light source 210, a front surface of the light transmitting portion 231 is exposed to the ground brush 100, and light emitted from the light source 210 is emitted forward after passing through the light transmitting portion 231. It should be understood that the specific structure of the light emitting assembly 200 is not limited to the foregoing description and the drawings, and other reasonable structures may be adopted, which are not limited thereto.

Referring to fig. 7, the light incident portion 331 of the light guide plate 330 includes a flat light guide area 331b and a light incident area 331a disposed at a rear side of the light guide area 331b, the thickness of the light incident area 331a decreases from back to front, a light incident surface 331c corresponding to the light emitting component 200 is disposed at a rear end of the light incident area 331a, and a region where the locking structure slides relatively to the light guide plate 330 corresponds to the light guide area 331 b. In this embodiment, the bottom surface of the light incident area 331a is flush with the bottom surface of the light guide area 331b, the thickness of the front end of the light incident area 331a is consistent with the thickness of the rear end of the light guide area 331b, the thickness of the light guide area 331b is consistent front and back, the light guide area 331b is flat, and the flat light guide area 331b is utilized to provide a flat area for the locking structure to slide, so that the sliding smoothness of the locking structure can be improved. The thickness of the light guiding area 331b is smaller than that of the light entering area 331a, a certain installation space can be provided for the locking structure by utilizing the height difference between the light guiding area 331b and the light entering area 331a, and the thickness of the front cover assembly 300 can be reasonably reduced, so that the height of the floor brush 100 can be reasonably reduced, and the floor brush 100 can enter the low space such as the bed bottom, the cabinet bottom, the sofa bottom and the like for cleaning.

Referring to fig. 6 and 7, the height H1 of the light incident surface 331c is greater than the light emitting height H2 of the light emitting device 200, and in this embodiment, the light emitting height of the light emitting device 200 refers to the height of the front surface of the light transmitting portion 231. H1 is larger than H2, so that the light emitted from the front surface of the light-transmitting part 231 of the light-emitting component 200 can be emitted into the light-entering part 331 from the light-entering surface 331c as much as possible and then emitted forward along the light guide plate 310, so that the illumination brightness is improved as much as possible under the condition that the energy of the light source is certain, and the requirement on the matching precision between the light-emitting component 200 and the light guide plate 330 is also reduced reasonably. Further, in the present embodiment, the light incident surface 331c of the light guide plate 310 and the front surface of the light transmitting portion 231 are disposed vertically, so as to reduce light escaping caused by refraction of light. It can be understood that the height of the light incident surface 331c may be consistent with the light emergent height of the light emitting assembly 200, and the front surfaces of the light incident surface 331c and the light transmitting portion 231 of the light guide plate 310 may be inclined within a certain angle range with respect to the vertical. The light emitting height H2 of the light emitting assembly 200 is determined according to a specific structure of the light emitting assembly 200, for example, when the entire front surface of the cover plate 230 is exposed to the floor brush 100, the height of the cover plate 230 is the light emitting height of the light emitting assembly 200.

Referring to fig. 5, the locking structure includes two sliding blocks 340 distributed left and right and an elastic member disposed between the two sliding blocks 340, in order to reduce friction resistance between the sliding blocks 340 and the light incident portion 331 during sliding, a plurality of ribs 333 are disposed on a top surface of the light incident portion 331 and spaced apart from each other, and the sliding blocks 340 are abutted against the ribs 333. The surface contact between the slider 340 and the top surface of the light incident portion 331 is converted into the surface contact between the slider 340 and the ribs 333 by the ribs 333, so that the contact area between the slider 340 and the light guide plate 330 is greatly reduced, and the friction resistance of the slider 340 during sliding is reduced. In the present embodiment, the ribs 333 extend from the back to the front to form a strip shape, and the extending direction of the ribs 333 is consistent with the emitting direction of the light, so as to reduce the ratio of the light escaping from the ribs 333 when the light is emitted along the light guide plate 330. The protruding muscle 333 is equipped with many along controlling the direction interval, and the length of protruding muscle 333 is greater than the width of slider 340, and slider 340 is effectual to support simultaneously on two at least protruding muscle 333, makes slider 340 receive stable vertical support through the conflict with protruding muscle 333, avoids slider 340 to take place to warp the condition of changeing with protruding muscle 333 as the fulcrum when sliding. It is to be understood that the ribs 333 may be disposed obliquely within a certain angle range with respect to the front-rear direction, and of course, the ribs 333 may be disposed in other reasonable shapes such as S-shape, arc shape, and fold line shape.

Referring to fig. 7 and 8, the light guide plate 330 further includes a light emitting portion 332 disposed in front of the light entering portion 331 for guiding light to the surface to be cleaned, and the width of the light entering portion 331 is equal to or not smaller than the width of the light emitting assembly 200. In fig. 7, a line L1 represents a rear edge of the light guide plate 330, a line L2 represents a boundary between the light entrance area 331a and the light guide area 331b, a line L3 represents a boundary between the light entrance area 331 and the light exit area 332, a line L4 represents a front edge of the light guide plate 330, a region between the line L1 and the line L2 is the light entrance area 331a of the light entrance area 331, a region between the line L2 and the line L3 is the light guide area 331b of the light entrance area 331, and a region between the line L3 and the line L4 is the light exit area 332.

Referring to fig. 8, in the present embodiment, the width of the light incident portion 331 is consistent with the width of the light emergent portion 332, that is, the width of the light guide plate 330 is consistent, and the light incident from the light incident portion 331 can be fully mixed in the light guide plate 330 with the same width and then emitted, so that the light emitted from the light emergent portion 332 can be intensively irradiated on the surface to be cleaned in front of the floor brush, which is beneficial to improving the illumination effect. In order to make the light of the light emitting module 200 be incident into the light guide plate 330 from the light incident portion 331 as much as possible, the width of the light guide plate 300 is larger than that of the light emitting module 200, and the left and right ends of the light guide plate 300 are protruded beyond the left and right ends of the light emitting module 220. It is understood that the width of the light guide plate 330 may be equal to the width of the light emitting assembly 200, and the left and right ends of the light guide plate 330 are aligned with the left and right ends of the light emitting assembly 200.

Referring to fig. 7, the front end of the light emitting portion 332 is provided with a light emitting surface 332a exposed to the front cover assembly 300, and the light emitting surface 332a is obliquely arranged and forms an included angle γ with the surface to be cleaned, wherein γ is 20 ° or less and 60 ° or less. The included angle gamma between the light emitting surface 332a and the surface to be cleaned is reasonably set, and more surface areas to be cleaned are irradiated as much as possible under the condition that the energy of the light source 210 is fixed. In this embodiment, the light emitting portion 332 extends obliquely downward and forward from the front end of the light entering portion 331, so that the light entering the light guide plate 300 can be obliquely downward and forward along the light emitting portion 332 to irradiate onto the surface to be cleaned, and the included angle γ between the light emitting surface 332a and the surface to be cleaned is set to 48 °. It will be appreciated that the included angle γ may be set to other reasonable dimensions such as 20 °, 25 °,30 °,35 °,40 °, 45 °,50 °, 55 °,60 °, etc., without being limited thereto.

When the cleaning member 600 is installed at the roller brush cavity 110 and the front cover assembly 300 is engaged with the floor brush 100, the front cover assembly 300 covers the top of the cleaning member 600. In order to avoid the shielding effect of the cleaning member 600 on the light emitted from the light emitting surface 332a, at least a portion of the light emitting portion 332 is located in front of the rotation center line of the cleaning member 600. Referring to fig. 2, in this embodiment, the cleaning member 600 adopts a crawler-type mop structure, which includes a driving roller 610, a driven roller 620, a cleaning mop 630 and a supporting frame 640, wherein the driving roller 610 and the driven roller 620 are disposed in front and rear parallel through the supporting frame 640, and the cleaning mop 630 is sleeved outside the driving roller 610 and the driven roller 620. Referring to fig. 7, point E represents the rotation center line of driven roller 620, and in this embodiment, point E is located on line L3 such that the entire light emitting portion 332 is located forward of the rotation center line of driven roller 620. It will be appreciated that point E may be located rearward of line L3 such that a portion of light exiting portion 332 is located forward of the rotational centerline of driven roller 620 and another portion is located rearward of the rotational centerline of driven roller 620. Other specific structures of the crawler-type mop structure may refer to the prior art, and will not be described herein, however, the specific structure of the cleaning member 600 is not limited to the crawler-type mop structure described above and shown in the drawings, and a single-roller brush structure or a double-roller brush structure may be used. When the cleaning member 600 adopts a single roll brush structure, all or part of the light emitting portion 332 is located in front of the rotation center line of the roll brush. When the cleaning member 600 adopts the double-roll brush structure, all or part of the light emitting portion 332 is located in front of the rotation center line of the front roll brush.

Referring to fig. 9, two sliding blocks 340 are provided with outwardly protruding buckles 341 at the ends far away from each other, the floor brush 100 is provided with clamping grooves 130 at two ends of the roller brush cavity 110, the elastic member is configured to elastically deform when the two sliding blocks 340 are forced to slide in opposite directions to enable the buckles 341 to be separated from the clamping grooves 130, and when the two sliding blocks 340 are loosened, the two sliding blocks 340 are driven to slide in opposite directions to enable the buckles 341 to be inserted into the clamping grooves 130. In this embodiment, the elastic member adopts a spring 350, and the spring 350 is in a compressed state and two ends respectively abut against the two sliding blocks 340. Normally, the spring 350 applies force to the two sliding blocks 340 and pushes the buckle 341 against the clamping groove 130, so that the buckle 341 and the clamping groove 130 are in a stable matching state. When the user applies force to the two sliding blocks 340 to enable the two sliding blocks 340 to slide towards each other, the buckle 341 is separated from the clamping groove 130 to unlock, and meanwhile, the spring 350 is stressed to compress. After the user releases the two sliding blocks 340, the spring 350 for restoring the deformation drives the two sliding blocks 340 to slide back, so that the buckle 341 is restored to the position state of being matched with the clamping groove 130. It can be understood that two springs 350 may be provided and correspond to the two sliding blocks 340, one end of the spring 350 abuts against the rib structure of the upper cover plate 310 to achieve positioning, and the other end abuts against the corresponding sliding block 340, and of course, other elastic members capable of driving the sliding block 340 to return may be adopted as the elastic members.

Referring to fig. 9, in order to facilitate the application of force to the slider 340 by the user, the slider 340 is provided with a sunk catch recess 342, the upper cover plate 310 is provided with a relief opening 311 for relieving the catch recess 342, and the upper cover plate 310 is provided with a limiting portion 312 extending into the catch recess 342 at the relief opening 311 for limiting the sliding travel of the slider 340. The reasonable cooperation structure that sets up between slider 340 and the upper cover plate 310 can rationally reduce the thickness of slider 340 to can rationally reduce the thickness of protecgulum subassembly 300, help rationally reduce the height of scrubbing brush 100, make scrubbing brush 100 can get into in the low space such as bed bottom, cabinet bottom, sofa bottom clean.

In this embodiment, the left and right sides of the lower cover 320 are provided with positioning portions 360 protruding upwards, the light guide plate 330 and the slider 340 are disposed between the left and right positioning portions 360, and the positioning portions 360 are provided with through grooves 361 for the buckles 341 to extend out of the front cover assembly 300 from the sides. The light guide plate 330 and the slider 340 can be positioned left and right by the left and right positioning portions 360, and structural stability of the light guide plate 330 and the slider 340 can be improved while the assembling difficulty is reduced. It is understood that the positioning portion 360 may be formed by downwardly protruding left and right ends of the upper cover plate 310.

Referring to fig. 3, the front side of the floor brush 100 is provided with a scraping bar 140 for scraping the cleaning member 600, and the front end of the scraping bar 140 protrudes into the roller brush cavity 110 and interferes with the cleaning member 600. The floor brush 100 is further provided with a soil inlet 150 below the scraping strip 140 and a floor scraper 160 below the soil inlet 150. The floor brush 100 is internally provided with a driving assembly for driving the cleaning member 600, the driving assembly comprises a motor, a reduction gearbox and a driving head 170, the motor is in transmission connection with an input shaft of the reduction gearbox, the driving head 170 is in transmission connection with an output shaft of the reduction gearbox, the driving roller 610 is provided with a transmission hole for the driving head 170 to be inserted, and the motor drives the cleaning member 600 to rotate through the reduction gearbox, the driving head 170 and the transmission hole. The surface cleaning device further comprises a water supply assembly and a dirt collecting assembly, the water supply assembly supplies water to the cleaning piece 600 to enable the cleaning piece 600 to wet and wipe a surface to be cleaned after water absorption and infiltration, the dirt collecting assembly is used for sucking dirt at the bottom of the floor brush 100 and dirt scraped off by the cleaning piece 600 into a dirt collecting barrel, the concrete structure of the water supply assembly and the dirt collecting assembly can refer to the prior art, and details are omitted here.

When the surface cleaning apparatus needs to illuminate during operation, the light generated by the power on of the light source 210 is emitted forward from the front surface of the light transmitting portion 231, then is emitted into the light guide plate 330 from the light incident surface 331c, and the light emitted into the light guide plate 330 is emitted forward from the light emergent surface 332a and irradiates on the surface to be cleaned located in front of the floor brush 100, so that a user can observe the specific condition of the surface to be cleaned. It will be appreciated that the illumination may be activated by a user manually pressing an illumination button, or may be activated by the control module of the surface cleaning apparatus based on a brightness sensing signal fed back by the brightness sensor.

When the front cover assembly 300 needs to be detached, the fingers of the user extend into the hand-buckling concave portions 342 of the two sliding blocks 340 from the avoiding opening 311 of the upper cover plate 310 and apply force to the two sliding blocks 340 at the same time, the two sliding blocks 340 are forced to slide oppositely so that the buckle 341 is separated from the clamping groove 130, and then the front cover assembly 300 is detached from the floor brush 100 upwards.

When the front cover assembly 300 is required to be mounted on the floor brush 100, the user applies force to the two sliding blocks 340 to slide the two sliding blocks 340 in opposite directions and compress the springs 350, then the front cover assembly 300 is placed on the front side of the floor brush 100 and then the sliding blocks 340 are released, the springs 350 restoring deformation drive the two sliding blocks 340 to slide back to enable the buckle 341 to be inserted into the clamping groove 130, and the front cover assembly 300 and the floor brush 100 keep a relatively fixed position state through the cooperation of the buckle 341 and the clamping groove 130.

In addition to the above preferred embodiments, the present utility model has other embodiments, and various changes and modifications may be made by those skilled in the art without departing from the spirit of the utility model, which shall fall within the scope of the utility model as defined in the appended claims.

Claims (10)

1. The utility model provides a surface cleaning device, includes the brush that is equipped with luminous subassembly and can dismantle complex protecgulum subassembly with the brush, and luminous subassembly includes a plurality of light sources along brush width direction interval distribution, and the protecgulum subassembly includes upper cover plate, lower apron, locking structure and light guide plate, and the light guide plate is including the income light part that the adjacent luminous subassembly set up, its characterized in that, go into the continuous setting of width direction along luminous subassembly of light guide plate, locking structure locates between upper cover plate and the light guide plate, and locking structure corresponds the light guide plate and takes place the light inlet part of relative slip region for the light guide plate.

2. The surface cleaning apparatus of claim 1, wherein the top surface of the light entrance portion is provided with a plurality of ribs distributed at intervals, and the locking structure is abutted against the ribs.

3. A surface cleaning apparatus as claimed in claim 2, wherein the ribs extend in a front-to-rear direction; and/or the convex ribs are distributed at intervals along the width direction of the light guide plate.

4. The surface cleaning apparatus of claim 1, wherein the light guide plate further comprises a light emitting portion disposed on a front side of the light entering portion for guiding light to the surface to be cleaned, and a width of the light entering portion is equal to or not smaller than a width of the light emitting element.

5. The surface cleaning apparatus of claim 4, wherein the front end of the light-emitting portion is provided with a light-emitting surface exposed out of the front cover assembly, and the light-emitting surface is obliquely arranged and forms an angle of 20 ° to 60 ° with the surface to be cleaned.

6. The surface cleaning apparatus of claim 4, wherein the light-emitting portion extends obliquely downward and forward from a front end of the light-entering portion; and/or the floor brush is provided with a cleaning piece positioned at the bottom of the front cover assembly, and at least part of the light emitting part is positioned in front of the rotation center line of the cleaning piece.

7. The surface cleaning apparatus of claim 1, wherein the light incident portion comprises a flat light guide area and a light incident area disposed at a rear side of the light guide area, the thickness of the light incident area decreases from back to front, a light incident surface corresponding to the light emitting component is disposed at a rear end of the light incident area, and a region of the locking structure sliding relatively to the light guide plate corresponds to the light guide area.

8. The surface cleaning apparatus of claim 7, wherein the light entrance surface has a height greater than a light exit height of the light emitting assembly.

9. A surface cleaning apparatus as claimed in claim 1, wherein the locking structure comprises two left and right sliding blocks and an elastic member arranged between the two sliding blocks, the two sliding blocks are provided with buckles at the ends far away from each other, the floor brush is provided with clamping grooves matched with the buckles, the elastic member is arranged to elastically deform when the two sliding blocks are forced to slide towards each other to enable the buckles to be separated from the clamping grooves, and when the two sliding blocks are released, the two sliding blocks are driven to slide back to enable the buckles to be inserted into the clamping grooves.

10. The surface cleaning apparatus of claim 9, wherein the slider is provided with a submerged clasp catcher and the upper cover plate is provided with a relief opening for relieving the clasp catcher; and/or, the left side and the right side of the upper cover plate or the lower cover plate are provided with convex positioning parts, the light guide plate and the sliding block are arranged between the left positioning part and the right positioning part, and the positioning parts are provided with through grooves for the buckles to extend out of the front cover assembly.