CN219629525U - Surface cleaning device with large cleaning force - Google Patents

Abstract

The utility model discloses a surface cleaning device with high cleaning force, which belongs to the technical field of cleaning equipment and comprises a floor brush, a machine body, a cleaning assembly, a driving assembly, a scraping strip, a water supply assembly and a dirt collecting assembly, wherein the cleaning assembly comprises a rotating roller, a support structure and a cleaning belt, the support structure comprises a side support vertically arranged at one end of the rotating roller, the side support is provided with a positioning part, the side wall of the floor brush facing the side support is provided with a matching part matched with the positioning part, and the central axis of the rotating roller is lower than the geometric center point of the positioning part. The user has decurrent component to the clean subassembly when exerting force to the scrubbing brush through the fuselage, under this component effect, the contact force between clean subassembly and the face of treating the clean increases, can increase the clean dynamics of treating the clean face of clean area, makes clean area can effectively wipe the stubborn spot, is favorable to improving the clean dynamics of device to be favorable to improving user's use experience.

Description

Surface cleaning device with large cleaning force

Technical Field

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

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 can supply water to the cleaning piece, the cleaning piece can wet and wipe a surface to be cleaned after absorbing water and soaking, and the dirt collection assembly can suck dirt at the bottom of the floor brush and dirt scraped by a scraping strip into a dirt collection barrel. When the floor brush is used, a user drives the floor brush to move back and forth through the push-pull machine body, so that the floor brush can move back and forth on a surface to be cleaned. The existing hand-held surface cleaner generally adopts a single rotating roller, the outer diameter of the rotating roller is larger, the central axis of the rotating roller is generally higher, and the contact force of the rotating roller to a cleaning surface cannot be effectively increased when a user applies force to a floor brush through a machine body, so that the wiping force of the rotating roller to the cleaning surface cannot be effectively increased, the wiping effect of the rotating roller to stubborn stains is poor, and the use experience of the user is not facilitated to be improved.

Disclosure of Invention

In order to solve the defects and shortcomings in the prior art, the utility model provides the surface cleaning device with large cleaning force, the central axis of the rotating roller is lower than the geometric center point of the positioning part, and a user can effectively increase the contact force of the cleaning component on the surface to be cleaned when applying force to the ground brush through the machine body, so that the wiping force of the cleaning component on the surface to be cleaned is effectively increased, the cleaning effect of the device can be improved, and the use experience of the user is improved.

In order to achieve the above technical object, the present utility model provides a surface cleaning device with cleaning force, comprising:

the floor brush is provided with a roller brush cavity and a dirt inlet;

the machine body is hinged with the ground brush;

the cleaning component is detachably arranged at the roller brush cavity;

the driving assembly is arranged in the ground brush and used for driving the cleaning assembly;

the scraping strip is arranged above the sewage inlet and is used for scraping the cleaning component;

a water supply assembly for supplying water to the cleaning assembly;

the dirt collecting assembly sucks dirt at the dirt inlet into the dirt collecting barrel;

the cleaning component comprises a rotating roller, a cleaning belt sleeved outside the rotating roller and a support structure for supporting the rotating roller, wherein the support structure comprises a side support vertically arranged at one end of the rotating roller, a positioning part is arranged on the side support, a matching part matched with the positioning part is arranged on the side wall of the side support, and the central axis of the rotating roller is lower than the geometric center point of the positioning part.

Preferably, the rear part of the ground brush is provided with a roller, and the geometric center point of the positioning part is arranged at the same height as the central axis of the roller.

Preferably, the rotating rollers are arranged, the cleaning belt is sleeved outside the two rotating rollers, the support structure further comprises a support frame which is perpendicular to the side support, the two rotating rollers are respectively arranged on the front side and the rear side of the support frame, and the central axes of the two rotating rollers are lower than the geometric center point of the positioning part.

Preferably, the outer diameters of the two rotating rollers are identical and are arranged at equal heights.

Preferably, the rear part of the ground brush is provided with a roller, the distance between the geometric center point of the positioning part and the central axis of the roller is L1, and the distance between the geometric center point of the positioning part and the midpoint of the connecting line of the centers of the two rotating rollers is L2, wherein L1=L2; and/or the height difference between the geometric center point of the positioning part and the central axes of the two rotating rollers is deltah, wherein deltah is more than or equal to 10mm and less than or equal to 25mm.

Preferably, the two rotating rollers comprise a driving roller directly driven by the driving assembly and a driven roller driven by the driving roller, one end of the driving roller is rotatably connected with the side bracket through a bearing, the side bracket is provided with a protruding part protruding towards the driving roller, and the inner periphery of the protruding part is provided with an anti-winding cavity positioned at the outer periphery of the bearing.

Preferably, the side bracket is provided with a convex edge which protrudes towards the driving roller and forms a bearing installation cavity, the convex part is positioned at the periphery of the convex edge, and the anti-winding cavity is positioned between the convex edge and the convex part; and/or the convex part is annular and the outer diameter is consistent with the outer diameter of the driving roller.

Preferably, the support frame comprises a main frame body and an auxiliary frame body which can be folded and unfolded and combined together, the driving roller is rotatably arranged on the main frame body, the driven roller is rotatably arranged on the auxiliary frame body, the side frame is provided with a convex block protruding towards the main frame body, the end part of the main frame body is provided with a groove for inserting the convex block, the convex block is inserted into the groove, and the main frame body and the side frame are fixed through a fastener.

Preferably, the outer wall of the protruding part is provided with a plurality of convex ribs which are distributed at intervals and protrude towards the convex block, and the convex ribs are propped against the outer wall of the end part of the main frame body, which faces the protruding part.

Preferably, the end of the auxiliary frame body facing the side support is connected to the side support through a sliding piece, the sliding piece is in a column shape with thin inside and thick outside, the auxiliary frame body is provided with a convex column matched with the sliding piece, the side support is provided with a sliding groove which extends along the front and back direction and is narrow inside and wide outside, the sliding piece penetrates through the sliding groove and is fixed with the convex column, and the outer surface of the sliding piece is flush with or lower than the outer surface of the side support.

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 cleaning component is detachably arranged at the roller brush cavity through the matching of the positioning part and the matching part, so that the cleaning component is convenient for a user to detach and mount. The central axis of the rotating roller is lower than the geometric center point of the positioning part, a user has downward component force to the cleaning assembly when applying force to the floor brush through the machine body, under the action of the component force, the contact force between the cleaning assembly and the surface to be cleaned is increased, the wiping force of the cleaning belt on the surface to be cleaned can be increased, the cleaning belt can effectively wipe stubborn stains, the cleaning force of the device is improved, and the use experience of the user is improved.

2. When a user applies force to the floor brush through the machine body, the geometrical center point of the positioning part is arranged at the same height as the central axis of the roller, and the acting force applied to the floor brush mainly acts on the front part of the floor brush, so that the contact force between the cleaning assembly and the surface to be cleaned can be further increased, and the cleaning force of the cleaning assembly on the surface to be cleaned can be further improved.

3. The rotating rollers are preferably arranged, the cleaning belts are sleeved outside the two rotating rollers, the cleaning assembly adopts a crawler-type structure, the contact area between the cleaning assembly and the surface to be cleaned can be effectively increased, and the cleaning efficiency and the cleaning effect of the cleaning assembly are improved.

4. The preferable outer diameters of the two rotating rollers are consistent and equal in height, so that the acting force of the floor brush on the cleaning assembly is not required to be subdivided, and the cleaning force of the cleaning belt on the surface to be cleaned can be further improved. In addition, the two rotating rollers synchronously rotate when the device works, so that the cleaning belt can be driven to move better, the effective wiping area of the cleaning belt to the cleaning surface is improved, and the wiping effect of the cleaning belt is improved. Because the two rotating rollers are equal in height and equal in thickness, the upper part and the lower part of the cleaning belt are parallel to each other, the condition that the cleaning belt collapses can be avoided, the supporting requirement on the middle of the upper part of the cleaning belt is reduced, and the derailment probability of the cleaning belt is reduced.

5. L1 and L2 equal the setting, the mid point of the geometric centre point of location portion, the central axis of gyro wheel, two live-rollers central line constitutes an isosceles triangle structure promptly, rationally sets up the distributed structure of gyro wheel, location portion and two live-rollers, and the effort that makes clean subassembly receive is located clean subassembly's intermediate position, can improve clean area bottom surface's atress homogeneity, is favorable to improving clean subassembly's cleaning performance, also can avoid influencing driving motor's driving stability because of clean area bottom surface local atress is too big leads to drive subassembly's load increase.

And the height difference delta h between the geometric center point of the positioning part and the central axes of the two rotating rollers is reasonably set, so that the cleaning force of the cleaning assembly is reasonably increased, and the height of the floor brush is reasonably controlled. If Δh is smaller than 10mm, the height difference between the positioning portion and the rotating roller is small, which is not beneficial to increasing the component force of the acting force applied to the floor brush by the user through the machine body in the vertical direction, and is not beneficial to increasing the cleaning force of the cleaning assembly on the surface to be cleaned. If delta h is greater than 25mm, the height difference between the positioning part and the rotating roller is large, the overall height of the floor brush is correspondingly increased, and the floor brush cannot enter low spaces such as the bed bottom and the sofa bottom for cleaning, so that the use requirements of users are not met.

6. One end of the driving roller is rotatably connected with the side bracket through a bearing, and the positioning support can be provided for the driving roller through the side bracket, so that the structural strength of the driving roller is improved. The side support is provided with a protruding part protruding towards the driving roller, the inner periphery of the protruding part is provided with an anti-winding cavity, filaments such as hair which are wound between the cleaning belt and the driving roller can be thrown into the anti-winding cavity under the centrifugal action of the driving roller, the situation that the bearing is blocked due to the fact that the filaments such as hair enter the bearing at the end part of the driving roller is avoided, the driving roller can normally rotate when the device works, and therefore the cleaning assembly can effectively wipe the surface to be cleaned.

7. The bulge is located the periphery of protruding edge, and the antiwind chamber is located between protruding edge and the bulge, sets up the setting position of bulge rationally to set up the setting position of antiwind chamber for the bearing installation cavity rationally, make to be rolled into filaments such as hair between clean area and the drive roll and can effectually be got rid of in the antiwind chamber. The bulge is annular, the outer diameter of the bulge is consistent with that of the driving roller, the bulge can be contacted with a surface to be cleaned to provide support for the cleaning assembly, and the situation that the two rotating rollers are blocked due to radial deflection caused by stress of the two rotating rollers is avoided, so that the two rotating rollers can smoothly rotate when the device works.

8. The lug on the side bracket is inserted into the groove at the end part of the main frame body, the assembly between the main frame body and the side bracket can be guided through the cooperation of the lug and the groove, the assembly efficiency of the bracket structure can be improved, and the connection strength between the main frame body and the side bracket can be improved through the cooperation of the lug and the groove, so that the overall strength of the bracket structure can be improved.

9. The protruding rib on the outer wall of the protruding part is propped against the outer wall of the end part of the main frame body, and the main frame body is supported through the interference fit between the protruding rib and the end part of the main frame body, so that the structural stability of the main frame body is improved, and the movement stability of the two rotating rollers and the cleaning belt is improved.

10. The auxiliary frame body is connected to the side support through the sliding piece, the sliding piece is matched with the sliding groove on the side support, the end part of the auxiliary frame body is supported in a positioning mode through the matching of the sliding piece and the auxiliary frame body, the structural strength of the auxiliary frame body can be improved, the auxiliary frame body and the driven roller can be positioned in the height direction through the matching of the sliding piece and the sliding groove, the cleaning belt is effectively attached to a surface to be cleaned, the cleaning efficiency of the device is improved, and the movement stability of the auxiliary frame body when the auxiliary frame body is unfolded or folded relative to the main frame body can be improved. The connecting point of the support frame at the end part is increased through the fixed fit of the sliding piece and the convex column, so that the force arm of the force bearing end is increased, the force bearing strength of the positioning part can be reduced, and the integral strength of the support structure is improved. The outer surface of the sliding part is flush with or lower than the outer surface of the side support, so that the sliding part can be prevented from scraping the wall surface or wallpaper when the device is cleaned along the edge.

Drawings

FIG. 1 is an overall view of a surface cleaning apparatus according to an embodiment;

FIG. 2 is a view showing an internal structure of a floor brush in a front-rear direction in a surface cleaning apparatus according to an embodiment;

FIG. 3 is an exploded view of a floor brush in a surface cleaning apparatus according to an embodiment;

FIG. 4 is a top view showing the internal structure of a floor brush in a surface cleaning apparatus according to an embodiment;

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

FIG. 6 is a block diagram of a side bracket in a surface cleaning apparatus according to an embodiment;

FIG. 7 is a schematic view showing the positions of two rotating rollers and a side frame in a surface cleaning apparatus according to an embodiment;

FIG. 8 is a right side view of a floor brush in a surface cleaning apparatus according to an embodiment;

FIG. 9 is a block diagram of a main frame of a surface cleaning apparatus according to an embodiment;

FIG. 10 is a partial block diagram of a cleaning assembly in a surface cleaning apparatus according to one embodiment;

FIG. 11 is a mating block diagram of the right end of the cleaning assembly of the surface cleaning apparatus of one embodiment;

FIG. 12 is a block diagram of a water supply assembly and a wiper strip in a surface cleaning apparatus according to one embodiment;

fig. 13 is a partial construction view of a main body in a surface cleaning apparatus according to an embodiment.

In the figure, 100-floor brushes, 110-roller brush cavities, 120-dirt inlets, 130-scraping strips, 140-matching parts, 150-machine shells, 151-upper shells, 152-lower shells, 153-containing cavities, 160-front cover assemblies, 170-adapter, 181-rollers, 182-supporting wheels, 190-floor scrapers,

200-the machine body is provided with a main body,

300-cleaning component, 310-driving roller, 311-driving hole, 320-driven roller, 330-cleaning belt, 340-supporting frame, 341-main frame body, 3411-groove, 3412-fixed column, 3413-rear supporting part, 342-auxiliary frame body, 3421-main body part, 3422-front supporting part, 3423-convex column, 350-side bracket, 351-positioning part, 352-convex part, 353-anti-winding cavity, 354-bearing installation cavity, 355-convex edge, 356-convex block, 357-convex rib, 358-chute, 360-sliding part,

400-drive assembly, 410-drive motor, 420-drive structure, 430-drive head,

500-water supply assembly, 510-water purifying tank, 520-water supply pipeline, 530-water pump, 540-water dividing plate, 541-water outlet, 542-water inlet, 543-water passage,

600-dirt collecting assembly, 610-dirt collecting barrel, 611-barrel body, 612-barrel cover, 620-dirt collecting fan and 630-dirt collecting channel.

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 13, a surface cleaning apparatus with high cleaning force according to a first embodiment of the present utility model includes:

a floor brush 100 provided with a roller brush cavity 110 and a dirt inlet 120;

a body 200 hinged with the floor brush 100;

the cleaning component 300 is detachably arranged at the roller brush cavity 110;

a driving assembly 400 disposed in the floor brush 100 for driving the cleaning assembly 300;

a scraping bar 130 disposed above the dirt inlet 120 and adapted to scrape the cleaning assembly 300;

a water supply assembly 500 for supplying water to the cleaning assembly 300;

the dirt collecting assembly 600 sucks the dirt at the dirt inlet 120 into the dirt collecting barrel 610;

the cleaning assembly 300 comprises a rotating roller, a cleaning belt 330 sleeved outside the rotating roller, and a support structure for supporting the rotating roller, wherein the support structure comprises a side support 350 vertically arranged at one end of the rotating roller, the side support 350 is provided with a positioning part 351, the side wall of the floor brush 100 facing the side support 350 is provided with a matching part 140 matched with the positioning part 351, and the central axis of the rotating roller is lower than the geometric center point of the positioning part 351.

Because the central axis of the rotating roller is lower than the geometric center point of the positioning part 351, the user can apply force to the floor brush 100 through the machine body 200 to have downward component force to the cleaning assembly 300, under the action of the component force, the contact force between the cleaning assembly 300 and the surface to be cleaned is increased, the wiping force of the cleaning belt 330 on the surface to be cleaned can be increased, the cleaning belt 330 can effectively wipe stubborn stains, the cleaning force of the device is improved, and the use experience of the user is improved.

Referring to fig. 2 and 3, in the present embodiment, the floor brush 100 includes a housing 150 and a front cover assembly 160, the housing 150 includes an upper case 151 and a lower case 152 fixed together and formed with a receiving cavity 153, and the receiving cavity 153 is located at the rear of the roller brush cavity 110. The front cover assembly 160 is detachably fixed to the front side of the housing 150 through a locking structure, the front cover assembly 160 and the housing 150 cooperate to form the roller brush cavity 110 with an open bottom, and the front cover assembly 160 can cover the cleaning assembly 300 when being fixed to the front side of the housing 150. The middle part of the rear side of the casing 150 is provided with an adapter 170, the adapter 170 is approximately in an inverted T shape, the through hole shaft hole matching structure can swing up and down and is connected to the casing 150, the lower end of the machine body 200 is connected with the adapter 170, and the machine body 200 is hinged with the floor brush 100 through the adapter 170. The left and right outer sides of the rear of the housing 150 are respectively provided with a roller 181, and the bottom of the housing 150 is provided with a supporting wheel 182. The bottom of the floor brush 100 is provided with a floor scraper 190 which is arranged below the dirt inlet 120 and has elasticity, the floor scraper 190 is long and is arranged along the left-right direction, and the floor scraper 190 scrapes the surface to be cleaned when the floor brush 100 moves.

Referring to fig. 3, in this embodiment, the left end of the roller brush cavity 110 is closed, the right end is open, and correspondingly, the side bracket 350 is disposed at the right end of the rotating roller, the positioning portion 351 is a positioning table disposed on the left surface of the side bracket 350, the mating portion 140 is a positioning groove disposed on the right side wall of the floor brush 100, and the mating portion 140 is formed by mating an upper housing 151 and a lower housing 152. Referring to fig. 4, the driving assembly 400 is disposed in the accommodating cavity 153 of the floor brush 100, two rotating rollers are disposed, the support structure further includes a support frame 340 perpendicular to the side support 350, and the two rotating rollers are disposed on front and rear sides of the support frame 340 respectively. In order to reasonably reduce the length of the transmission force arm between the driving assembly 400 and the rotating roller, the rotating roller positioned at the rear side of the supporting frame 340 and closer to the driving assembly 400 is a driving roller 310, and the rotating roller positioned at the front side of the supporting frame 340 and farther from the driving assembly 400 is a driven roller 320. In operation of the device, the drive assembly 400 drives the drive roller 310 to rotate, and the drive roller 310 drives the driven roller 320 to synchronously rotate through the cleaning belt 330.

Referring to fig. 8, in order to prevent the user from re-decomposing and reducing the force applied to the floor brush 100 through the body 200, the geometric center point of the positioning portion 351 is disposed at the same height as the center axis of the roller 181. In addition, in order to avoid a further reduction in the force applied by the floor brush 100 to the cleaning assembly 300, the outer diameters of the two rotating rollers are preferably set in unison, and the central axes of the two rotating rollers are set at equal heights. Referring to fig. 7 and 8, a point J represents a geometric center point of the positioning portion 351, a point K1 represents a central axis of the driving roller 310, a point K2 represents a central axis of the driven roller 320, an point M represents an outer contour of the driving roller 310, an point N represents an outer contour of the driven roller 320, a straight line P represents a plane in which central axes of the two rotating rollers are located, a point Q represents a central axis of the roller 181, a point J is consistent with a point Q in terms of a ground clearance height, and a point K1 is consistent with a point K2 in terms of a ground clearance height. The height difference deltah between the point J and the straight line P is the height difference between the geometric center point of the positioning part 351 and the central axes of the two rotating rollers, and deltah is more than or equal to 10mm and less than or equal to 25mm. In this example, Δh is 20mm.

Referring to fig. 8, a distance L1 between a point J and a point Q is a distance between a geometric center point of the positioning portion 351 and a central axis of the roller 181, a point S is a midpoint between a point K1 and a point K2, and a distance L2 between a point J and a point S is a distance between a geometric center point of the positioning portion 351 and a midpoint of a connecting line between two rotating roller centers, in this embodiment, l1=l2, that is, the point J, the point Q and the point S form an isosceles triangle structure, so that the acting force applied to the cleaning assembly 300 is located at a middle position of the cleaning assembly 300, which can improve the uniformity of the force applied to the bottom surface of the cleaning belt 330, and can also avoid the influence on the driving stability of the driving assembly due to the large load of the driving assembly 400 caused by the local excessive force applied to the bottom surface of the cleaning belt 330.

In order to enable the positioning portion 351 to meet the positioning matching requirement between the cleaning assembly 300 and the floor brush 100, the protruding height of the positioning portion 351 needs to be reasonably set, and the protruding height of the positioning portion 351 is H, wherein H is more than or equal to 5mm and less than or equal to 20mm. In the present embodiment, the protruding height H of the positioning portion 351 designates the protruding height of the positioning stage with respect to the left surface of the side bracket 350, and H is preferably set to 14mm.

Referring to fig. 4, the driving assembly 400 includes a driving motor 410 and a transmission structure 420, and the driving motor 410 drives the driving roller 310 to rotate through the transmission structure 420. In this embodiment, the transmission structure 420 adopts a transmission case, the motor shaft of the driving motor 410 extends into the transmission case as a power input shaft, the output shaft sleeve of the transmission case is provided with a driving head 430, and the driving head 430 is located at the left end of the roller brush cavity 110. The left end of the drive roller 310 is provided with a transmission hole 311 which is matched with the drive head 430. When the cleaning assembly 300 is installed in the roller brush cavity 110, the driving head 430 is inserted into the transmission hole 311, and the driving motor 410 drives the driving roller 310 to rotate through the cooperation of the transmission structure 420, the driving head 430 and the transmission hole 311.

Referring to fig. 6 and 11, the right end of the driving roller 310 is rotatably coupled to the side bracket 350 through a bearing, the side bracket 350 is provided with a protrusion 352 protruding rightward, and an anti-winding chamber 353 located at the outer circumference of the bearing is provided at the inner circumference of the protrusion 352. Filaments such as hair which are wound between the cleaning belt 330 and the driving roller 310 can be thrown into the anti-winding cavity 353 under the centrifugal action of the driving roller 310, so that the condition that the bearing is blocked due to the fact that the filaments such as hair enter the bearing is avoided, and the driving roller 310 can rotate normally when the device works is ensured. In this embodiment, the side bracket 350 is provided with a flange 355 protruding rightward and forming a bearing mounting chamber 354, the protruding portion 352 is located at the outer periphery of the flange 355, and the anti-winding chamber 353 is located between the flange 355 and the protruding portion 352, i.e., the space between the flange 355 and the protruding portion 352 forms the anti-winding chamber 353. To improve structural stability of the cleaning assembly 300, the projections 352 are arranged in a ring shape, and the outer diameter of the projections 352 is consistent with the outer diameter of the drive roll 310 so that the projections 352 may contact the surface to be cleaned to provide support for the cleaning assembly 300.

Referring to fig. 11, the supporting frame 340 includes a main frame 341 and an auxiliary frame 342 that can be assembled together, the driving roller 310 is rotatably mounted on the main frame 341, and the driven roller 320 is rotatably mounted on the auxiliary frame 342. Referring to fig. 6 and 9, the side bracket 350 is provided with a protrusion 356 protruding toward the main bracket 341, the end of the main bracket 341 is provided with a groove 3411 into which the protrusion 356 is inserted, the protrusion 356 is inserted into the groove 3411, and the main bracket 341 and the side bracket 350 are fixed by a fastener. In this embodiment, the main frame 341 and the side frame 350 are locked by screws, the groove 3411 is disposed on the right side wall of the main frame 341, the hollow fixing column 3412 is disposed in the groove 3411, and the bump 356 is disposed on the left surface of the side frame 350. During assembly, the protruding blocks 356 are inserted into the grooves 3411 to realize installation guiding between the main frame 341 and the side brackets 350, and after the protruding blocks are inserted into the grooves, screws for fixing the main frame 341 and the side brackets 350 penetrate through the side brackets 350 from right to left and then are screwed with the fixing columns 3412.

The main frame 341 and the sub frame 342 of the supporting frame 340 have an opened state and a closed state, and when the supporting frame 340 is in the opened state, the center distance between the two rotating rollers is large, so that the two rotating rollers tighten the cleaning belt 330. When the supporting frame 340 is in a folded state, the center distance between the two rotating rollers is smaller, so that the two rotating rollers loosen the cleaning belt 330, and a user can assemble and disassemble the cleaning belt conveniently. The specific matching structure between the main frame 341 and the sub frame 342 may refer to the prior art, and will not be described herein.

In order to combine fig. 6, in order to improve the structural stability of the main frame 341, the protruding portion 352 is provided with a plurality of protruding ribs 357 protruding toward the protruding portion 356 and distributed at intervals along the circumferential direction at the outer wall near the protruding portion 356, and after the main frame 341 is fixed to the side bracket 350, the protruding ribs 357 are abutted against the rear wall of the right end of the main frame 341, and the main frame 341 is subjected to the positioning action in the front-rear direction through the interference fit between the protruding ribs 357 and the end of the main frame 341.

Referring to fig. 9, a rear supporting portion 3413 for supporting the driving roller 310 is provided at a rear side of the main frame 341, and the driving roller 310 is rotatably supported on the rear supporting portion 3413 by a bearing. Referring to fig. 11, the sub-frame 342 includes a main body 3421 and front support 3422 provided at both ends of the main body 3421, the main body 3421 is provided in the main frame 341, the front support 3422 extends forward from the main frame 341, and both ends of the driven roller 320 are rotatably mounted on the two front support 3422 via bearings, respectively.

Referring to fig. 10, the right end of the sub-frame 342 is connected to the side bracket 350 through a slider 360. Referring to fig. 3, the left side of each member facing the center of the floor brush 100 is defined as the inner side, the right side of each member facing away from the center of the floor brush 100 is defined as the outer side, the slider 360 is in a stepped columnar shape with thin inside and thick outside and is provided with a shaft hole, the side bracket 350 is provided with a slide groove 358 extending in the front-rear direction and having a narrow inside and a wide outside, the front support portion 3422 on the right side is provided with a boss 3423 protruding rightward and being engaged with the slider 360, the boss 3423 is provided with a screw hole, and the slider 360 and the sub-frame 342 are fixed by a screw. During assembly, the sliding piece 360 passes through the sliding groove 358 and the fixing column 3412 to be mutually inserted, and then screws for fixing the sliding piece 360 and the auxiliary frame 342 pass through the sliding piece 360 from right to left and are screwed into screw holes of the convex columns 3423, so that the step surface of the sliding piece 360 is abutted against the step surface on the inner wall of the sliding groove 358 to realize axial positioning.

In order to prevent the slider 360 from protruding outward from the right surface of the side bracket 350, the right surface of the slider 360 is preferably lower than the right surface of the side bracket 350, so that the outer surface of the slider 360 is lower than the outer surface of the side bracket 350, preventing the slider 360 from scraping the wall surface or wallpaper when the device is cleaned along the edge, and preventing the slider 360 from affecting the decorative paper adhered to the right surface of the side bracket 350. Of course, the right surface of the slider 360 may also be disposed flush with the right surface of the side bracket 350, without being excessively limited thereto.

Referring to fig. 12, the water supply assembly 500 includes a fresh water tank 510, a water supply pipe 520, a water pump 530, and a water diversion plate 540, the fresh water tank 510 is detachably disposed at a rear side of the main body 200, the water diversion plate 540 is disposed at a front side of the main body 150 and above the scraping strip 130, the front side of the water diversion plate 540 is provided with a plurality of water outlets 541 distributed at intervals along a left-right direction and facing the cleaning assembly 300, a water inlet 542 is disposed at a rear side of the water diversion plate 540, and a water passage 543 for communicating the water inlet 542 with the water outlet 541 is disposed inside the water diversion plate 540. The water inlet end of the water supply pipe 520 is detachably engaged with the fresh water tank 510, the water outlet end of the water supply pipe 520 is connected to the water inlet 542, and the water pump 530 is provided to the water supply pipe 520 and is disposed in the receiving cavity 153 of the housing 150. In operation of the device, water in the fresh water tank 510 flows along the water supply pipe 520 to the water diversion plate 540 under the pumping action of the water pump 530, and then flows through the water inlet 542 and the water passing channel 543 to flow out of the water outlet 541. The scraping strip 130 is arranged at the bottom of the water diversion plate 540, the front end of the scraping strip 130 stretches into the roller brush cavity 110 to collide with the cleaning belt 330, and the scraping strip 130 scrapes the moving cleaning belt 330.

Referring to fig. 13, the dirt collecting assembly 600 includes a dirt collecting barrel 610 and a dirt collecting fan 620, the dirt collecting barrel 610 is detachably disposed on the front side of the main body 200, the dirt collecting barrel 610 includes a barrel body 611 and a barrel cover 612 for covering the barrel body 611, the dirt collecting fan 620 is disposed in the main body 200 and above the dirt collecting barrel 610, and a dirt collecting channel 630 for communicating the dirt inlet 120 and the dirt collecting barrel 610 is disposed between the lower end of the main body 200 and the floor brush 100. When the device works, the dirt collecting fan 620 provides suction force to form dirt collecting air flow, the dirt collecting air flow flows in from the dirt inlet 120 and then flows into the dirt collecting barrel 610 through the dirt collecting channel 630, and dirt such as particles, dirt liquid and the like at the dirt inlet 120 flows into the dirt collecting barrel 610 along with the dirt collecting air flow.

When the device works, the water supply assembly 500 supplies water to the cleaning belt 330 through the water outlet 541, the driving assembly 400 drives the driving roller 310 to rotate positively, the driving roller 310 which rotates positively drives the cleaning belt 330 to move and the driven roller 320 is driven to rotate synchronously through the cleaning belt 330, and the bristles of the cleaning belt 330 wet-wipe the surface to be cleaned after absorbing water and soaking. The scraping strip 130 scrapes the wiped contaminated cleaning belt 330, the floor scraper 190 scrapes the surface to be cleaned, and the dirt scraped by the cleaning belt 330 by the scraping strip 130 and the dirt on the front side of the floor scraper 190 are sucked into the dirt collecting bucket 610 under the action of the dirt collecting airflow.

In conjunction with fig. 8, when the device works, the acting force applied to the floor brush 100 by the user through the machine body 200 is F, the force F can be decomposed into a component force F1 in the horizontal direction and a component force F2 in the vertical direction, and under the action of the component force F2, the contact force between the cleaning belt 330 and the surface to be cleaned is increased, so that the wiping force of the cleaning belt 330 on the surface to be cleaned can be increased, and the cleaning belt 330 can effectively wipe stubborn stains, thereby improving the cleaning force of the device.

It will be appreciated that Δh may be set to other reasonable sizes of 10mm, 12mm, 14mm, 16mm, 18mm, 19mm, 21mm, 23mm, 25mm, etc.

It is understood that the protruding height H of the positioning portion 351 may be set to be 5mm, 7mm, 9mm, 10mm, 12mm, 13mm, 15mm, 17mm, 20mm, or other reasonable dimensions.

It is understood that the specific structures of the positioning portion 351 and the mating portion 140 may be interchanged, that is, the side bracket 350 is provided with a positioning slot, and the side wall of the floor brush 100 facing the side bracket 350 is provided with a positioning table mating with the positioning slot.

It will be appreciated that the outer diameter of the annular projection 352 may also be slightly smaller than the outer diameter of the drive roller 310.

It will be appreciated that the projections 352 may be provided in other reasonable shapes.

It will be appreciated that the provision of projection 352 and anti-wind-up chamber 353 may be eliminated.

It will be appreciated that the arrangement of the slider 360, runner 358 and post 3423 may be eliminated.

It will be appreciated that the two rotating rollers may be of a thin front and thick rear configuration, i.e., the outer diameter of the driving roller 310 is slightly larger than the outer diameter of the driven roller 320.

Example two

In this embodiment, the cleaning assembly adopts a single-roller structure, that is, only one rotating roller is provided, and the cleaning belt can be directly and fixedly sleeved outside the rotating roller. The support frame is canceled by the support structure, and one end of the rotating roller, which faces the side support, is rotatably arranged on the side support through a bearing. When the cleaning component is arranged at the roller brush cavity, the central axis of the rotating roller is lower than the geometric center point of the positioning part.

The other structures of the second embodiment refer to the first embodiment, and are not described herein.

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. A surface cleaning apparatus with high cleaning strength comprising:

the floor brush is provided with a roller brush cavity and a dirt inlet;

the machine body is hinged with the ground brush;

the cleaning component is detachably arranged at the roller brush cavity;

the driving assembly is arranged in the ground brush and used for driving the cleaning assembly;

the scraping strip is arranged above the sewage inlet and is used for scraping the cleaning component;

a water supply assembly for supplying water to the cleaning assembly;

the dirt collecting assembly sucks dirt at the dirt inlet into the dirt collecting barrel;

it is characterized in that the method comprises the steps of,

the cleaning component comprises a rotating roller, a cleaning belt sleeved outside the rotating roller and a support structure for supporting the rotating roller, wherein the support structure comprises a side support vertically arranged at one end of the rotating roller, a positioning part is arranged on the side support, a matching part matched with the positioning part is arranged on the side wall of the side support, and the central axis of the rotating roller is lower than the geometric center point of the positioning part.

2. The surface cleaning apparatus of claim 1, wherein the rear portion of the floor brush is provided with a roller, and the geometric center point of the positioning portion is disposed at the same height as the central axis of the roller.

3. The surface cleaning device with high cleaning force as claimed in claim 1, wherein the two rotating rollers are arranged, the cleaning belt is sleeved outside the two rotating rollers, the support structure further comprises a support frame perpendicular to the side support, the two rotating rollers are respectively arranged on the front side and the rear side of the support frame, and the central axes of the two rotating rollers are lower than the geometric center point of the positioning part.

4. A surface cleaning apparatus as claimed in claim 3, wherein the two rotating rollers have uniform outer diameters and are arranged at equal heights.

5. The surface cleaning apparatus of claim 4, wherein the rear part of the floor brush is provided with a roller, the distance between the geometric center point of the positioning part and the central axis of the roller is L1, and the distance between the geometric center point of the positioning part and the midpoint of the connecting line between the geometric center point of the positioning part and the centers of the two rotating rollers is L2, wherein l1=l2; and/or the height difference between the geometric center point of the positioning part and the central axes of the two rotating rollers is deltah, wherein deltah is more than or equal to 10mm and less than or equal to 25mm.

6. A surface cleaning apparatus as claimed in claim 3, wherein the two rotating rollers comprise a driving roller directly driven by the driving assembly and a driven roller driven by the driving roller, one end of the driving roller is rotatably connected to the side bracket via a bearing, the side bracket is provided with a projection projecting toward the driving roller, and an anti-winding cavity is provided on the inner periphery of the projection.

7. The surface cleaning apparatus of claim 6, wherein the side bracket is provided with a protruding edge protruding toward the driving roller and forming a bearing mounting cavity, the protruding portion is located at the periphery of the protruding edge, and the anti-winding cavity is located between the protruding edge and the protruding portion; and/or the convex part is annular and the outer diameter is consistent with the outer diameter of the driving roller.

8. The surface cleaning apparatus of claim 6, wherein the support frame comprises a main frame body and an auxiliary frame body which are combined together in a retractable manner, the driving roller is rotatably arranged on the main frame body, the driven roller is rotatably arranged on the auxiliary frame body, the side frame is provided with a convex block protruding towards the main frame body, the end part of the main frame body is provided with a groove for inserting the convex block, the convex block is inserted into the groove, and the main frame body and the side frame are fixed through a fastener.

9. The surface cleaning apparatus of claim 8, wherein a plurality of ribs are arranged on the outer wall of the protruding portion at intervals and protruding toward the protruding block, and the ribs are abutted against the outer wall of the end portion of the main frame body, which faces the protruding portion.

10. The surface cleaning apparatus of claim 8, wherein the end of the sub-frame facing the side frame is connected to the side frame through a sliding member, the sliding member is in a shape of a column with a thin inside and a thick outside, the sub-frame is provided with a convex column matched with the sliding member, the side frame is provided with a sliding groove extending in the front-back direction and a wide inside and a narrow outside, the sliding member passes through the sliding groove and is fixed with the convex column, and the outer surface of the sliding member is flush with or lower than the outer surface of the side frame.