Surface cleaning device with movable cleaning part

Abstract

The surface cleaning device with the movable cleaning part belongs to the technical field of cleaning equipment and comprises a floor brush, a scraping part and the cleaning part, the floor brush comprises a floor brush body and a roller brush cover which are matched to form a roller brush cavity, the floor brush body is provided with a dirt suction opening, the rear end of the roller brush cover is attached to the floor brush body, and the front end of the roller brush cover is suspended. The cleaning part installed at the roller brush cavity is covered by the roller brush cover and can be scraped and squeezed by the scraping part, an anti-interference gap is formed between the cleaning part and the suspended end of the roller brush cover, and the floor brush is further provided with a driving assembly used for driving the cleaning part to move front and back in the roller brush cavity. The distance of the cleaning piece driven by the driving assembly to move back and forth in the roller brush cavity is smaller than the minimum width of the anti-interference gap. No matter whether the cleaning piece is located at the front position or the rear position in the roller brush cavity, a gap with a certain width always exists between the cleaning piece and the suspended end of the roller brush cover, and mutual interference between the cleaning piece and the roller brush cover is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a surface cleaning device with a movable cleaning member. Background Art

[0002] With the development of science and technology, the variety of surface cleaning equipment is increasing. These devices have gradually entered people's homes and become common appliances. Existing handheld floor scrubbers generally include a body, a floor brush, a liquid supply assembly, and a dirt suction assembly. The floor brush is equipped with a dirt suction port, a motor-driven cleaning element, and a scraping element for scraping the cleaning element. The liquid supply assembly supplies liquid to the cleaning element so that it can absorb the liquid and then wipe the surface to be cleaned. The fan provides suction to create negative pressure in the sewage bucket, forming a dirt suction airflow that flows from the dirt suction port into the sewage bucket. Dirt scraped from the cleaning element by the scraping element can follow the dirt suction airflow into the sewage bucket. The scraping element scrapes out the dirt and dirt adsorbed by the cleaning element, thereby ensuring the cleaning ability of the cleaning element on the surface to be cleaned.

[0003] A floor brush generally includes a floor brush body and a roller brush cover. The roller brush cover is generally detachably mounted on the top side of the floor brush body. The roller brush cover cooperates with the floor brush body to form a roller brush cavity for mounting a cleaning member. In traditional handheld floor scrubbers, the cleaning member mounted in the roller brush cavity remains fixed in its front-to-back position relative to the roller brush cavity, meaning the cleaning member cannot move forward or backward within the roller brush cavity. There is a certain gap between the cleaning member and the roller brush cover to prevent the two from interfering with each other. Since the cleaning member is positioned almost closely against the front wall of the floor brush body, larger particles or hair and other dirt can easily get stuck between the cleaning member and the front wall of the floor brush body and accumulate. The stuck dirt is not easily sucked away through the suction port by the suction airflow, and the increasing accumulation of dirt can easily cause the cleaning member to become blocked, increasing the drive load of the motor that drives the cleaning member, which is not conducive to ensuring the performance stability of the motor. In addition, when more and more dirt accumulates between the cleaning member and the front wall of the floor brush body, the dirt will push the cleaning member away from the scraping member, which is not conducive to ensuring the scraping effect of the scraping member on the cleaning member. The hair stuck between the cleaning member and the front wall of the floor brush body is also easy to be entangled on the cleaning member, which will reduce the cleaning ability of the cleaning member and is not conducive to ensuring the dirt removal efficiency and cleaning effect of the cleaning member. Utility Model Content

[0004] In order to solve the shortcomings and deficiencies in the above-mentioned prior art, the utility model provides a surface cleaning device with a movable cleaning member. The distance that the cleaning member driven by the driving assembly moves back and forth in the roller brush chamber is less than the minimum width of the anti-interference gap, and the cleaning member and the roller brush cover are prevented from interfering with each other while the cleaning member can move back and forth.

[0005] In order to achieve the above technical objectives, the present invention provides a surface cleaning device with a movable cleaning member, comprising:

[0006] A floor brush comprises a floor brush body and a roller brush cover which cooperate to form a roller brush cavity, wherein the floor brush body is provided with a sewage suction port communicating with the roller brush cavity, and the rear end of the roller brush cover is attached to the floor brush body and the front end is suspended in the air;

[0007] A scraping member is provided above the sewage suction port, wherein the rear side of the scraping member is fixedly provided and the front side extends into the roller brush cavity;

[0008] A cleaning member detachably mounted on the roller brush chamber, the cleaning member mounted on the roller brush chamber being covered by the roller brush cover and being scraped and squeezed by the scraping member;

[0009] An anti-interference gap is provided between the cleaning member and the suspended end of the roller brush cover;

[0010] The floor brush is further provided with a driving assembly for driving the cleaning member to move back and forth in the roller brush chamber;

[0011] The distance that the cleaning member driven by the driving assembly moves back and forth in the roller brush chamber is less than the minimum width of the anti-interference gap.

[0012] Preferably, the cleaning member driven by the driving assembly has a first position in which it contacts the scraping member from the rear and a second position in which it disengages from the scraping member from the front, and the distance the cleaning member moves between the first position and the second position is less than the minimum width of the anti-interference gap.

[0013] Preferably, the driving component drives the cleaning member to move back and forth in the roller brush chamber, and the one-way stroke is 3 mm to 10 mm.

[0014] Preferably, one end of the cleaning member is provided with a side plate for support, and the floor brush is provided with a frame plate opposite to the side plate and used to support the other end of the cleaning member, and the driving assembly drives the cleaning member to move back and forth in the roller brush chamber through the side plate and / or the frame plate.

[0015] Preferably, the driving assembly is arranged in the floor brush body, and the side plate and the frame plate are driven by two sets of driving assemblies respectively and the two move forward and backward synchronously.

[0016] Preferably, the driving assembly includes a motor, an active part, and a driven part that cooperates with the active part, the active part is connected to the rotating shaft of the motor, the driven part is indirectly connected to the end of the cleaning part, and the motor drives the cleaning part through the active part and the driven part.

[0017] Preferably, the roller brush cover includes a suspended arc-shaped portion and an attachment portion detachably attached to the floor brush body, the arc-shaped portion bends and extends downward from back to front, and the anti-interference gap is located between the arc-shaped portion and the cleaning member.

[0018] Preferably, the cleaning member in the first position is arranged substantially concentrically with the arc-shaped portion.

[0019] Preferably, the width of the anti-interference gap gradually decreases from back to front when the cleaning member is in the second position.

[0020] Preferably, the front edge of the arc-shaped portion is located between the central axis of the cleaning member and the front edge of the cleaning member in the front-to-back direction; and / or the front edge of the arc-shaped portion is lower than the upper edge of the cleaning member in the height direction.

[0021] After adopting the above technical solution, the utility model has the following advantages:

[0022] 1. The surface cleaning device provided by the utility model has a floor brush provided with a driving assembly. When the driving assembly drives the cleaning member to move from back to front in the roller brush chamber, the cleaning member moves away from the floor brush body and the scraping member, so that the dirt stuck between the cleaning member and the floor brush body (or scraping member) can be sucked away through the dirt suction port, thereby preventing the stuck dirt from accumulating more and more, resulting in an increasing driving load on the motor driving the cleaning member. It can also prevent the dirt from being entangled in the cleaning member due to the inability to be sucked away in time, thereby reducing the cleaning ability of the cleaning member. In particular, it can prevent the stuck hair from being entangled in the cleaning member, thereby ensuring the cleaning ability of the cleaning member. When the driving assembly drives the cleaning member to move from front to back in the roller brush chamber, the cleaning member returns to a state of contact with the scraping member, so that the cleaning member can be smoothly scraped and squeezed by the scraping member.

[0023] Since the suspended end of the roller brush cover is far away from the main body of the floor brush, if the suspended end of the roller brush cover is subjected to an action force, the roller brush cover will be subjected to a large torque, and the roller brush cover is prone to shaking. There is an anti-interference gap between the cleaning member and the suspended end of the roller brush cover. The distance that the cleaning member driven by the driving assembly moves back and forth in the roller brush cavity is less than the minimum width of the anti-interference gap. In this way, no matter whether the cleaning member is in the front position or the back position in the roller brush cavity, there is always a gap of a certain width between the cleaning member and the suspended end of the roller brush cover. This gap prevents the roller brush cover from interfering with the rotation of the cleaning member, and on the other hand, prevents the rotating cleaning member from contacting the suspended end of the roller brush cover, causing the suspended end to be subjected to an action force. This prevents the roller brush cover from shaking due to the action of the torque and then loosening, so that the roller brush cover can be stably attached to the main body of the floor brush, thereby keeping the overall structure of the floor brush stable.

[0024] 2. Driven by the drive assembly, the cleaning member has a first position and a second position. When the cleaning member is in the first position, the cleaning member is in a rear position and contacts the scraping member, so that the scraping member can smoothly scrape the cleaning member, and the dirt scraped out can be sucked away through the dirt suction port, thereby ensuring the cleaning ability of the cleaning member. When the cleaning member is in the second position, the cleaning member is in a front position and disengaged from the scraping member. At this time, the cleaning member and the floor brush body, and the cleaning member and the scraping member are loosened, so that the dirt stuck between the cleaning member and the floor brush body (or scraping member) can be sucked away through the dirt suction port. In addition, dirt such as hair and particulate matter retained on the scraping member can also be sucked away through the dirt suction port. The distance that the cleaning member moves back and forth between the first position and the second position is less than the minimum width of the anti-interference gap, so that there is still an anti-interference gap between the cleaning member in the second position and the suspended end of the roller brush cover, thereby avoiding mutual interference between the cleaning member and the roller brush cover.

[0025] 3. The one-way stroke of the driving component driving the cleaning member to move back and forth in the roller brush chamber is preferably set to 3mm to 10mm. The range of the cleaning member's forward and backward movement is reasonably set so that the cleaning member moved to the second position can be fully loosened by the scraping member, and there is still an anti-interference gap of a certain width between the cleaning member moved to the second position and the suspended end of the roller brush cover. If the one-way movement stroke of the cleaning member is less than 3mm, the moving distance of the cleaning member from the first position to the second position is small, and the cleaning member in the second position may still conflict with the scraping member, which is not conducive to the dirt stuck between the cleaning member and the scraping member being sucked away smoothly. If the one-way movement stroke of the cleaning member is greater than 10mm, the moving distance of the cleaning member from the first position to the second position is large. In order to avoid mutual interference between the cleaning member and the suspended end of the roller brush cover, the width of the anti-interference gap needs to be designed to be larger. In this way, the external dimensions of the suspended end are correspondingly increased, which is not conducive to keeping the overall structure of the floor brush compact.

[0026] 4. A side panel is provided at one end of the cleaning element, and a frame panel is provided at one side of the floor brush. When the cleaning element is installed in the roller brush chamber, the two ends of the cleaning element are supported by the side panel and the frame panel, respectively. The drive assembly drives the cleaning element to move back and forth within the roller brush chamber via the side panel and / or the frame panel. The power output end of the drive assembly only needs to be connected to the side panel and / or the frame panel. The specific driving method of the drive assembly for the cleaning element is reasonably set to ensure that the drive assembly can smoothly drive the cleaning element back and forth while reducing the difficulty of the drive assembly in driving the cleaning element.

[0027] 5. The drive assembly is preferably arranged inside the floor brush body, so as to facilitate the use of the internal space of the floor brush body to provide the installation space required by the drive assembly. The side panels and the frame panels are preferably driven separately by two sets of drive assemblies, so that the drive assemblies can be arranged as close to the side panels and the frame panels as possible, so that the power output end of the drive assembly can be directly connected to the side panels and the frame panels, thereby ensuring the driving force of the drive assembly on the side panels and the frame panels, and further ensuring that the drive assembly can drive the cleaning parts to move smoothly in the roller brush chamber through the side panels and the frame panels. The side panels and the frame panels move back and forth synchronously under the drive of the two sets of drive assemblies, so that the axial ends of the cleaning parts can move synchronously in the roller brush chamber, thereby improving the overall movement consistency of the cleaning parts and avoiding the situation where the cleaning parts are stuck in rotation due to inconsistent movement at both ends.

[0028] 6. The drive assembly includes a motor, active components, and driven components. The active components are connected to the motor's rotating shaft, and the driven components are connected to the side panels (or frame panels). When the motor is operating, the active components and driven components drive the side panels and frame panels to move back and forth synchronously. The side panels and frame panels then drive the cleaning components to move back and forth within the roller brush chamber. The specific structure of the drive assembly should be appropriately designed to meet the structural requirements for driving the cleaning components to move back and forth within the roller brush chamber.

[0029] 7. The roller brush cover includes an arcuate portion and an attachment portion. The roller brush cover is detachably connected to the floor brush body via the attachment portion. The arcuate portion curves downward from the front end of the attachment portion, and an anti-interference gap is located between the arcuate portion of the roller brush cover and the cleaning element. The specific structure of the roller brush cover is properly designed to ensure smooth attachment of the roller brush cover to the floor brush body and a smooth anti-interference gap between the suspended end of the roller brush cover and the cleaning element.

[0030] 8. When the cleaning member is in the first position, the cleaning member and the arc-shaped portion of the roller brush cover are roughly concentrically arranged. At this time, the width of the anti-interference gap is roughly consistent in the front and back direction of the cleaning member. The front and back dimensions of the roller brush cover are reasonably reduced while ensuring the width of the anti-interference gap, thereby effectively avoiding interference between the cleaning member and the roller brush cover.

[0031] 9. When the cleaning member is in the second position, the width of the anti-interference gap gradually decreases from the back to the front, ensuring that there is still an anti-interference gap between the cleaning member and the arc-shaped portion of the roller brush cover when the cleaning member moves forward.

[0032] 10. The surface cleaning device may further include a liquid supply assembly for supplying liquid to the cleaning member, so that the cleaning member can absorb liquid, moisten it, and then wet-mop the surface to be cleaned. As the cleaning member rotates, the liquid absorbed by the cleaning member may be flung away by centrifugal force. The flung away liquid will flow downward along the arcuate portion due to the blocking effect of the arcuate portion. Because the leading edge of the arcuate portion is located between the central axis of the cleaning member and the leading edge of the cleaning member in the front-to-back direction, the liquid that flows downward along the arcuate portion and drips downward may fall onto the cleaning member and be reabsorbed by the cleaning member, thereby preventing the dripping liquid from directly landing on the surface to be cleaned and ensuring the liquid absorption and wetting effect of the cleaning member.

[0033] The front edge of the arc portion is lower than the upper edge of the cleaning member in the height direction, ensuring that the arc portion has a blocking effect on the liquid thrown away from the upper edge of the cleaning member. Since the liquid thrown away from the upper edge of the cleaning member can splash forward farther, the liquid thrown away by the cleaning member can be prevented from splashing forward onto furniture or walls. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a diagram of the entire surface cleaning device of Example 1 when it is a handheld floor scrubber;

[0035] Figure 2 Schematic cross-sectional view of a portion of the floor brush in the surface cleaning device of Example 1 along the front-to-back direction;

[0036] Figure 3 This is a partial structural diagram of a floor brush in a surface cleaning device according to Example 1;

[0037] Figure 4 This is an exploded view of a portion of the structure of the floor brush in the surface cleaning device of Example 1;

[0038] Figure 5 Schematic diagram of a liquid supply assembly in a surface cleaning device according to Example 1;

[0039] Figure 6 It is a partial schematic diagram of the surface cleaning device in Example 1 when the cleaning member is in the first position;

[0040] Figure 7 It is a partial schematic diagram of the surface cleaning device in Example 1 when the cleaning member is in the second position;

[0041] Figure 8 A cross-sectional view of a portion of the floor brush in the surface cleaning device of Example 1 along the left-right direction;

[0042] Figure 9 is a horizontal cross-sectional view of a portion of the floor brush in the surface cleaning device of Example 1;

[0043] Figure 10 An exploded view of a floor brush portion and a cam in the surface cleaning device of Example 1;

[0044] Figure 11 An exploded view of the side panel, lock, spring, and operating member of the surface cleaning device in Example 1;

[0045] Figure 12 This is an exploded view of the cam and the slider in the surface cleaning device of Example 1, which cooperate to drive the slider to move forward and backward;

[0046] Figure 13 This is a diagram of the entire surface cleaning device of Example 1 when it is a handheld vacuum cleaner;

[0047] Figure 14 This is a partial structural diagram of the floor brush when the cleaning member of the surface cleaning device in Example 2 adopts a crawler-type mop structure.

[0048] In the figure, 100-floor brush, 110-floor brush body, 111-stop portion, 112-limiting recess, 120-roller brush cover, 121-attachment portion, 122-arc-shaped portion, 130-roller brush cavity, 140-sewage suction port, 150-scraping member, 160-anti-interference gap, 170-frame plate, 180-floor scraper,

[0049] 200-driving assembly, 210-motor, 211-rotating shaft, 220-cam, 221-body, 222-protruding portion, 230-slider, 231-transmission hole, 232-platform, 233-limiting portion, 234-locking slot, 240-bracket, 250-guide rod,

[0050] 300-body, 310-handle, 320-connector,

[0051] 400-cleaning assembly, 410-cleaning parts, 420-side plate, 430-lock, 440-spring, 450-operating parts,

[0052] 510-cleaning motor, 520-transmission head, 530-hinge head,

[0053] 600-liquid supply assembly, 610-clean water tank, 620-water pump, 630-water distribution component, 531-water outlet, 640-heating component,

[0054] 700-sewage suction assembly, 710-sewage bucket, 720-fan, 730-sewage suction channel,

[0055] 800-Control Module,

[0056] 910-dust cup, 920-power source assembly, 930-dust inlet pipe,

[0057] S1-first locking surface, S2-second locking surface, S3-stop surface,

[0058] Q1-idle travel section, Q2-push-pull section, Q3-transition section. DETAILED DESCRIPTION

[0059] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the following terms indicating orientations or positional relationships, such as "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," and "bottom," are based solely on the orientations or positional relationships shown in the accompanying drawings and are intended solely for the purpose of facilitating and simplifying the description of the present invention. They do not indicate or imply that the device or element referred to must have a specific orientation or be constructed or operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0060] Example 1

[0061] Combine Figures 1 to 12 The first embodiment of the present invention provides a surface cleaning device with a movable cleaning member, comprising:

[0062] The floor brush 100 includes a floor brush body 110 and a roller brush cover 120 that cooperate to form a roller brush chamber 130. The floor brush body 110 is provided with a sewage suction port 140 that communicates with the roller brush chamber 130. The rear end of the roller brush cover 120 is attached to the floor brush body 110 and the front end is suspended in the air.

[0063] A scraping member 150 is provided above the sewage suction port 140 , wherein the rear side of the scraping member 150 is fixedly provided and the front side thereof extends into the roller brush chamber 130 ;

[0064] The cleaning member 410 is detachably mounted on the roller brush chamber 130 . The cleaning member 410 mounted on the roller brush chamber 130 is covered by the roller brush cover 120 and can be scraped by the scraping member 150 .

[0065] An anti-interference gap 160 is defined between the cleaning member 410 and the suspended end of the roller brush cover 120;

[0066] The floor brush 100 is further provided with a drive assembly 200 for driving the cleaning member 410 to move back and forth within the roller brush chamber 130;

[0067] The distance ΔD that the cleaning member 410 driven by the driving assembly 200 moves back and forth in the roller brush chamber 130 is smaller than the minimum width W1 of the anti-interference gap 160 .

[0068] When the driving assembly 200 drives the cleaning member 410 to move from back to front within the roller brush chamber 130, the cleaning member 410 moves away from the floor brush body 110 and the scraping member 150, so that dirt stuck between the cleaning member 410 and the floor brush body 110 (or the scraping member 150) can be sucked away through the dirt suction port 140. This prevents the stuck dirt from accumulating and causing the driving load of the motor driving the cleaning member 410 to increase. It also prevents the dirt from being entangled in the cleaning member 410 due to not being sucked away in time, thereby reducing the cleaning ability of the cleaning member 410. In particular, it prevents stuck hair from being entangled in the cleaning member 410, thereby ensuring the cleaning ability of the cleaning member 410. When the driving assembly 200 drives the cleaning member 410 to move from front to back within the roller brush chamber 130, the cleaning member 410 returns to a state of contact with the scraping member 150, so that the cleaning member 410 can be smoothly scraped and squeezed by the scraping member 150. There is an anti-interference gap 160 between the cleaning member 410 and the suspended end of the roller brush cover 120. The distance ΔD that the cleaning member 410 driven by the driving component 200 moves back and forth in the roller brush chamber 130 is less than the minimum width W1 of the anti-interference gap 160. In this way, no matter whether the cleaning member 410 is in the front position or the rear position in the roller brush chamber 130, there is always a gap of a certain width between the cleaning member 410 and the suspended end of the roller brush cover 120. This gap can prevent the roller brush cover 120 from interfering with the rotation of the cleaning member 410 on the one hand, and can prevent the rotating cleaning member 410 from contacting the suspended end of the roller brush cover 120, causing the suspended end to be subjected to a force, thereby preventing the roller brush cover 120 from shaking due to the torque and then loosening, so that the roller brush cover 120 can be stably attached to the floor brush body 110, so that the overall structure of the floor brush 100 remains stable.

[0069] Combine Figure 1 This embodiment is described by taking a handheld floor scrubber as an example. The surface cleaning device further comprises a body 300. A handle 310 is provided at the top of the body 300. The bottom of the body 300 is pivotally connected to the floor brush 100 via a joint 320. The body 300 can swing back and forth relative to the floor brush 100. Figure 2 、 Figure 3The roller brush cover 120 is detachably mounted on the top side of the floor brush body 110. When the roller brush cover 120 is mounted on the top side of the floor brush body 110, the front end of the roller brush cover 120 protrudes forward relative to the front wall of the floor brush body 110. The roller brush cover 120 and the floor brush body 110 cooperate to form a roller brush chamber 130. The cleaning member 410 is detachably mounted in the roller brush chamber 130. The front and bottom sides of the roller brush chamber 130 are open, and the roller brush chamber 130 is generally a semi-enclosed structure. When the cleaning member 410 is mounted in the roller brush chamber 130, the roller brush cover 120 covers the top of the cleaning member 410, and the front side of the cleaning member 410 is exposed to the floor brush 100. The bottom side of the cleaning member 410 protrudes slightly downward from the bottom surface of the floor brush 100 so that the cleaning member 410 can wipe the surface to be cleaned. The cleaning member 410 can adopt an existing single roller brush structure, a double roller brush structure, or a crawler mop structure, and there are no excessive restrictions here.

[0070] Combine Figure 4In this embodiment, a side plate 420 is provided at one end of the cleaning member 410. The side plate 420 is approximately perpendicular to the axial direction of the cleaning member 410. One end of the cleaning member 410 is rotatably mounted on the side plate 420 via a bearing, thereby supporting one end of the cleaning member 410 on the side plate 420. The cleaning member 410 and the side plate 420 together constitute the cleaning assembly 400. The floor brush body 110 is provided with a frame plate 170 opposite the side plate 420. When the cleaning member 410 is installed in the roller brush chamber 130, the side plate 420 and the frame plate 170 are arranged opposite each other and are respectively located on the left and right sides of the floor brush body 110. The frame plate 170 is also approximately perpendicular to the axial direction of the cleaning member 410, and the other end of the cleaning member 410 is supported by the frame plate 170. The floor brush 100 is also provided with a cleaning motor 510 for driving the cleaning member 410. The cleaning motor 510 drives the cleaning member 410 via a transmission structure. Specifically, in this embodiment, the frame 170 is provided with an articulated joint 530 on a side facing the center of the floor brush 100. One end of the cleaning motor 510 is hingedly connected to the frame 170 via a hinge shaft that engages the articulated joint 530. The other end of the cleaning motor 510 is provided with a transmission head 520. The cleaning member 410 is hollow and has a hole inside the cleaning member 410 that engages with the transmission head 520. When the cleaning member 410 is installed in the roller brush chamber 130, the cleaning motor 510 and the transmission head 520 are housed within the cleaning member 410. The end of the cleaning member 410 facing the frame 170 is sleeved outside the articulated joint 530, thereby supporting the end of the cleaning member 410. The operating cleaning motor 510 drives the cleaning member 410 to rotate about its central axis via the transmission head 520. As an alternative to this embodiment, the cleaning motor 510 can also be fixedly connected to the frame 170. As an alternative to this embodiment, when the cleaning member 410 adopts a single roller brush structure, the cleaning motor 510 for driving the cleaning member 410 can also be directly arranged inside the cleaning member 410. At this time, an electrical connection structure is set between the floor brush body 110 and the cleaning member 410. When the cleaning member 410 is installed in the roller brush chamber 130, the cleaning motor 510 is connected to the power through the electrical connection structure; when the cleaning member 410 adopts a double roller brush structure, the cleaning motor 510 for driving the cleaning member 410 can be arranged in one of the roller brushes, and a transmission assembly is provided between the two roller brushes; when the cleaning member 410 adopts a crawler mop structure, the cleaning motor 510 for driving the cleaning member 410 is arranged in one of the roller bodies, and the roller body drives the other roller body to rotate synchronously through the annular mop.

[0071] The surface cleaning device of this embodiment further includes a liquid supply component 600, Figure 5The liquid supply assembly 600 includes a clean water tank 610, a water pump 620, and a water diverter 630, which are arranged in sequence from upstream to downstream through pipelines. The clean water tank 610 can be detachably mounted on the brush body 300, the floor brush body 110, or fixed to the bottom of the roller brush cover 120. The water pump 620 is located within the floor brush body 110. The water diverter 630 is located on the front side of the floor brush body 110 or at the bottom of the roller brush cover 120. The water diverter 630 is located above the sewage suction port 140 and has multiple water outlet holes 631 spaced apart in the left-right direction. The water outlet holes 631 are positioned toward the cleaning element 410. The cleaning liquid in the clean water tank 610 flows into the water diverter 630 under the pumping action of the water pump 620. The cleaning liquid flowing into the water diverter 630 is sprayed from the water outlet holes 631 onto the cleaning element 410, allowing the cleaning element 410 to absorb the liquid and moisten it. As a preferred solution of this embodiment, the water distribution member 630 can adopt the existing technology of dividing a water inlet waterway into two N (N is a natural number) to divert the liquid into a structure with multiple water outlets. Of course, other components such as nozzles or nozzles that meet the liquid supply requirements can also be used instead of the water diversion component 630. As an improvement to this embodiment, the liquid supply component 600 can be provided with a heating component 640 upstream of the water diversion component 630 for heating the liquid flowing through, and the heated liquid is sprayed out from the water diversion component 630. As an alternative to this embodiment, the liquid supply component 600 can also be provided with a spray component for spraying the cleaning liquid onto the surface to be cleaned on the basis of the water diversion component 630. The spray component is connected to the end of the pipeline through an electronic control valve. At this time, a ground spray button for the user to selectively operate can be provided on the handle 310. If the user presses the ground spray button, the electronic control valve opens, and the liquid supply component 600 can spray the cleaning liquid onto the surface to be cleaned through the spray component.

[0072] In this embodiment, the sewage suction port 140 is located in the center of the floor brush body 110, and the sewage suction port 140 is connected to the roller brush chamber 130. The surface cleaning device of this embodiment also includes a sewage suction assembly 700, which includes a sewage bucket 710 and a fan 720. The sewage bucket 710 is detachably mounted on the body 300. A sewage suction channel 730 is provided between the body 300 and the floor brush body 110 for connecting the sewage suction port 140 and the sewage bucket 710. The specific structure of the sewage bucket 710 can refer to the existing technology and will not be described here. The fan 720 can be located in the upper end of the body 300, or it can be used as a component of the suction power source assembly. The suction power source assembly is detachably mounted on the body 300. The suction power source assembly detached from the body 300 can be connected to a dust collection accessory for dry dust collection. When the fan 720 is working, it provides suction to form a negative pressure in the sewage bucket 710 and form a sewage suction airflow flowing from the sewage suction port 140 into the sewage bucket 710. The dirt at the sewage suction port 140 can flow into the sewage bucket 710 along the sewage suction airflow, thereby collecting the dirt.

[0073] In this embodiment, the scraper 150 is located above the sewage suction port 140 and extends in a left-right direction. The scraper 150 can adopt a single scraper bar structure, a single comb tooth structure, or a structure combining a scraper bar and comb teeth. The specific structure of the scraper 150 is not particularly limited. A floor scraper 180 is also provided at the lower edge of the front side of the floor brush body 110, located below the sewage suction port 140. The floor scraper 180 extends in a left-right direction, with a leading edge extending downward and capable of contacting the surface to be cleaned. The water diverter 630, scraper 150, sewage suction port 140, and floor scraper 180 are arranged in order from top to bottom. The scraper 150 and water diverter 630 can be located together at the bottom of the roller brush cover 120, or together at the front side of the floor brush body 110. The scraper 150 and water diverter 630 can also be located separately at the front side of the floor brush body 110 and the bottom of the roller brush cover 120.

[0074] Combine Figure 6 、 Figure 7 The cleaning member 410 has a first position closer to the rear and a second position closer to the front in the roller brush chamber 130, and the driving assembly 200 drives the cleaning member 410 to move back and forth between the first position and the second position. Figure 6 When the cleaning member 410 is in the first position, the distance between the central axis L1 of the cleaning member 410 and the front edge of the scraping member 150 is D1, and the cleaning member 410 contacts the scraping member 150, that is, the front end of the scraping member 150 extends into the bristles or hairs of the outer layer of the cleaning member 410 and does not contact the base layer of the cleaning member 410, so that the scraping member 150 can effectively scrape the cleaning member 410 while avoiding damage to the cleaning member 410. Figure 7 When the cleaning member 410 is in the second position, the distance between the central axis L1 of the cleaning member 410 and the front edge of the scraping member 150 is D2, D2>D1 and ΔD=D2-D1, the cleaning member 410 is basically separated from the scraping member 150, or there is a certain gap between the cleaning member 410 and the scraping member 150, and the scraping member 150 cannot scrape the cleaning member 410.

[0075] To ensure that a certain width of anti-interference gap 160 is maintained between the cleaning member 410 moved to the second position and the suspended end of the roller brush cover 120, the one-way travel of the cleaning member 410 moving back and forth within the roller brush chamber 130 must be appropriately set. The size of this one-way travel is consistent with ΔD, and 3mm≤ΔD≤10mm. Specifically, the one-way travel of the cleaning member 410 (i.e., ΔD) can be set to a reasonable value such as 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, or 10mm.

[0076] Combine Figure 6The roller brush cover 120 includes an arc-shaped portion 122 and an attachment portion 121 distributed front to back. The straight line J represents the approximate dividing line between the arc-shaped portion 122 and the attachment portion 121. The arc-shaped portion 122 extends from the front edge of the attachment portion 121 and bends forward and downward. The anti-interference gap 160 is located between the arc-shaped portion 122 and the cleaning member 410. In this embodiment, the roller brush cover 120 can adopt a combined structure. A lock-fitting structure is provided between the attachment portion 121 and the floor brush body 110. The attachment portion 121 is detachably attached to the floor brush body 110 through the lock-fitting structure. The specific structure of the lock-fitting structure can refer to the prior art and will not be repeated here. Figure 6 Preferably, when the cleaning member 410 is in the first position, the cleaning member 410 and the arc portion 122 are arranged roughly concentrically, that is, the central axis L2 of the arc portion 122 roughly coincides with the central axis L1 of the cleaning member 410. At this time, the width of the anti-interference gap 160 is roughly consistent in the front and back direction of the cleaning member 410 in the circumferential direction, which reasonably reduces the front and back dimensions of the roller brush cover 120 while ensuring the width of the anti-interference gap 160, thereby effectively avoiding interference between the cleaning member 410 and the roller brush cover 120. Figure 7 When the cleaning member 410 is in the second position, the central axis L1 of the cleaning member 410 and the central axis L2 of the arc-shaped portion 122 are staggered front to back, and the central axis L1 of the cleaning member 410 is closer to the front of the central axis L2 of the arc-shaped portion 122. At this time, the width of the anti-interference gap 160 gradually decreases from back to front in the circumferential direction of the cleaning member 410, that is, W2>W1. In addition, ΔD<W1, which prevents the cleaning member 410 in the second position from contacting the arc-shaped portion 122 of the roller brush cover 120.

[0077] When the surface cleaning device is in operation, the cleaning motor 510 drives the cleaning member 410 to rotate after absorbing liquid. The liquid absorbed by the cleaning member 410 may be flung away due to centrifugal force. To prevent the flung away liquid from splashing far forward, the leading edge of the arcuate portion 122 indicated at point P1 is slightly lower in height than the upper edge of the cleaning member 410 indicated at point P2, so that the arcuate portion 122 blocks the liquid flung away by the cleaning member 410 to a certain extent. Some of the flung away liquid will flow downward along the arcuate portion 122 under the blocking effect of the arcuate portion 122. To prevent the liquid from dripping onto the surface to be cleaned, the leading edge of the arcuate portion 122 indicated at point P1 is located in the front-to-back direction between the central axis L1 of the cleaning member 410 and the leading edge of the cleaning member 410 indicated at point P3, so that the liquid flowing downward along the arcuate portion 122 and dripping downward can land on the cleaning member 410 and be reabsorbed by the cleaning member 410.

[0078] Combine Figure 4In this embodiment, the drive assembly 200 is disposed within the floor brush body 110. The drive assembly 200 drives the cleaning member 410 to move back and forth within the roller brush chamber 130 via the side plates 420 and the frame plate 170. Furthermore, the side plates 420 and the frame plate 170 are driven separately by two sets of drive assemblies 200, and the two move back and forth synchronously, so that the axial ends of the cleaning member 410 can move synchronously within the roller brush chamber 130, improving the overall movement consistency of the cleaning member 410 and avoiding the situation where the cleaning member 410 is locked due to inconsistent movement at both ends. Specifically, there are two sets of drive assemblies 200, and each set of drive assemblies 200 includes a motor 210, a driving member, and a driven member. The driven member of one set of drive assemblies 200 is detachably connected to the side plates 420, and the driven member of the other set of drive assemblies 200 is connected to the frame plate 170. The motors 210 of the two drive assemblies 200 operate synchronously, so that the two driven members drive the side plates 420 and the frame plate 170 to move back and forth synchronously.

[0079] Combine Figure 8 、 Figure 9 In this embodiment, the motor 210 has a rotating shaft 211, a cam 220 sleeved on the rotating shaft 211 as an active member, and a slider 230 that can slide back and forth as a driven member. The slider 230 has a transmission hole 231 that engages with the cam 220, and the cam 220 is inserted into the transmission hole 231. When the motor 210 is in operation, the rotating shaft 211 drives the cam 220 to rotate synchronously. The cam 220, through the engagement with the transmission hole 231, drives the slider 230 to slide back and forth. The two synchronously sliding sliders 230 drive the cleaning element 410 to move back and forth within the roller brush chamber 130 through the side plate 420 and the frame plate 170, respectively.

[0080] Combine Figure 12 Specifically in this embodiment, the slider 230 is provided with a substantially horizontal platform portion 232, a transmission hole 231 is provided on the platform portion 232 and penetrates the platform portion 232 in the up-down direction, the motor 210 is axially and vertically fixed above the platform portion 232 through the bracket 240 with the rotating shaft 211 facing downward, and accordingly, the cam 220 is axially and vertically inserted into the transmission hole 231. The cam 220 has a cylindrical main body portion 221 and a protrusion 222 protruding radially outward relative to the main body portion 221. The cross-sectional shape of the protrusion 222 along the direction perpendicular to the axial direction is roughly triangular, the axial height of the protrusion 222 is less than the axial height of the main body portion 221, and the protrusion 222 is located at the upper part of the cam 220. The two side surfaces of the protrusion 222 parallel to the axial direction of the cam 220 constitute a first locking surface S1 and a second locking surface S2 respectively, and the axial height of the two locking surfaces is also less than the axial height of the main body portion 221. Combined with Figure 10The bottom wall of the floor brush body 110 is provided with a stop portion 111 located below the platform portion 232. The side surface of the stop portion 111 facing the cam 220 forms a stop surface S3. The protrusion 222 is located in the transmission hole 231. At least a portion of the stop portion 111 is located within the axial projection of the transmission hole 231, so that the two locking surfaces can contact the stop surface S3 to limit the rotation range of the cam 220. When the cam 220 rotates in the direction indicated by +ω until the first locking surface S1 contacts the stop surface S3, the cam 220, through cooperation with the transmission hole 231, drives the slider 230 to slide backward to a rearward position. At this time, the backward sliding slider 230 drives the cleaning member 410 to move backward to the first position. When the cam 220 rotates in the direction indicated by -ω until the second locking surface S2 contacts the stop surface S3, the cam 220 drives the slider 230 to slide forward to the forward position by cooperating with the transmission hole 231. At this time, the forward sliding slider 230 drives the cleaning member 410 to move forward to the second position. As an alternative to this embodiment, the stop portion 111 can also be provided above the platform portion 232 and formed on the top wall of the floor brush body 110.

[0081] Combine Figure 12 The hole wall of the transmission hole 231 is provided with three sections in sequence along the circumferential direction, namely the idle stroke section Q1, the push-pull section Q2 and the transition section Q3. Figure 12 Points A and B are the two endpoints of the idle stroke segment Q1. The radius of the idle stroke segment Q1 is consistent and its center substantially coincides with the center of the main body 221 indicated by point E. Points B and C are the two endpoints of the push-pull segment Q2. The distance between the push-pull segment Q2 and point E gradually decreases from point B to point C. Points C and A are the two endpoints of the transition segment Q3. The distance between the transition segment Q3 and point E gradually increases from point C to point A. When the motor 210 drives the cam 220 to rotate in the direction indicated by -ω to move the cleaning member 410 from the first position to the second position, the protrusion 222 of the cam 220 first engages with the idle stroke segment Q1. At this time, the slider 230 does not move, so the cleaning member 410 remains in the first position in the initial stage of adjustment. When the cam 220 rotates until the protrusion 222 engages the push-pull section Q2, the rotating cam 220 drives the slider 230 to slide forward. The forward sliding slider 230 drives the cleaning member 410 forward through the side plate 420 and the frame plate 170. The idle travel section Q1 of the transmission hole 231 allows the cam 220 to rotate to the appropriate angle before engaging the push-pull section Q2 to drive the slider 230 forward. This reduces the driving load of the motor 210 in the initial operating state and facilitates smooth startup of the motor 210.

[0082] In order to ensure that the cleaning member 410 can be stably maintained in the first position, when the cam 220 is in a state where the first locking surface S1 contacts the stop surface S3, the protrusion 222 is set backward, and the protrusion 222 cooperates with the transmission hole 231 to cause the slider 230 to be subjected to a backward force, thereby causing the cleaning member 410 to be subjected to a backward pre-tightening force.

[0083] Combine Figure 10 The bottom wall of the floor brush body 110 is provided with a limiting recessed hole 112 located below the platform portion 232. The lower end of the body portion 221 is inserted into the limiting recessed hole 112. The body portion 221 cooperates with the limiting recessed hole 112 to limit the cam 220 in both radial and axial directions. As an alternative to this embodiment, the limiting recessed hole 112 can also be provided at the lower end of the cam 220. In this case, the bottom wall of the floor brush body 110 is provided with an upwardly protruding limiting post, which is inserted into the limiting recessed hole 112 to limit the cam 220 to a certain extent.

[0084] In order to improve the stability of the slider 230 in the forward and backward movement, the slider 230 is provided with a limiting portion 233 on the side facing away from the platform portion 232, and the floor brush body 110 is provided with a guide rod 250 extending along the forward and backward directions on the top and bottom sides of the limiting portion 233. The limiting portion 233 is provided with a guide groove that cooperates with the guide rod 250. Through the cooperation between the guide rod 250 and the guide groove, the slider 230 is limited when sliding forward and backward, so that the slider 230 can only slide forward and backward.

[0085] The side plate 420 and the cleaning member 410 together constitute a cleaning assembly 400 that is detachably mounted on the floor brush 100. A locking structure is required between the side plate 420 and the corresponding slider 230 to keep the side plate 420 and the slider 230 connected. Figure 11 In this embodiment, a lock catch 430 is provided on the side panel 420. The slider 230 corresponding to the side panel 420 has a lock slot 234 on its limiting portion 233 that cooperates with the lock catch 430. The lock catch 430 is slidably disposed on the side of the frame 170 facing the slider 230. A spring 440 and an operating member 450 are also provided on the side panel 420. The spring 440 biases the lock catch 430 toward the direction in which it cooperates with the lock slot 234. The operating member 450 is disposed on the side of the side panel 420 facing away from the slider 230. The operating member 450 and the lock catch 430 can be secured together by fasteners or other means. The operating member 450 has a recess or protrusion for user operation. The user can apply force to the operating member 450 through the recess or protrusion, and the operating member 450 under force can drive the lock 430 to overcome the bias of the spring 440 and move out of the lock slot 234, thereby releasing the engagement between the lock 430 and the lock slot 234, and then releasing the connection between the side plate 420 and the corresponding slider 230, so that the cleaning assembly 400 can be detached from the floor brush 100.

[0086] The frame 170 is arranged on the side of the floor brush 100 so as to be movable forward and backward. The frame 170 can be directly connected to the corresponding slider 230 through a fastener or a buckle structure.

[0087] The surface cleaning device is also provided with a control module 800 and a battery pack. Electrical components such as the fan 720, the cleaning motor 510, the motor 210 of the drive assembly 200, the water pump 620, and the buttons on the body 300 are all electrically connected and / or signal-connected to the control module 800, and the battery pack is used to supply power to each electrical component.

[0088] When the surface cleaning device is working normally, the cleaning member 410 is in the first position, the cleaning motor 510 drives the cleaning member 410 to rotate, the liquid supply assembly 600 provides cleaning liquid to the cleaning member 410, and the fan 720 provides suction to form a negative pressure in the sewage bucket 710 and form a sewage suction airflow flowing from the sewage suction port 140 to the sewage bucket 710. After the cleaning member 410 absorbs the liquid and moistens it, it wipes the surface to be cleaned. The scraping member 150 scrapes and squeezes the cleaning member 410, and the scraped dirt follows the sewage suction airflow through the sewage suction port 140 and is sucked into the sewage bucket 710.

[0089] When the device finishes operation or cleaning, or detects that dirt is stuck between the floor brush body 110 (or scraper 150) and the cleaning member 410, the motor 210 drives the slider 230 to slide forward via the cam 220 and the transmission hole 231. The slider 230 sliding forward drives the cleaning member 410 as a whole to move forward from the first position to the second position via the frame 170 and the side plate 420. The stuck dirt and dirt remaining on the scraper 150 can be sucked into the sewage bucket 710 through the sewage suction port 140 along with the suction airflow. After the stuck dirt is cleaned, the motor 210 drives the slider 230 to slide backward via the cam 220 and the transmission hole 231. The slider 230 sliding backward drives the cleaning member 410 as a whole to move backward from the second position to the first position via the frame 170 and the side plate 420, so that the cleaning member 410 and the scraper 150 are again in contact with each other. No matter whether the cleaning member 410 is in the first position or the second position, there is always an anti-interference gap 160 of a certain width between the cleaning member 410 and the arc portion 122 to prevent the cleaning member 410 and the roller brush cover 120 from interfering with each other.

[0090] In this embodiment, the two sliders 230, the two transmission holes 231, and the two cams 220 are all arranged symmetrically. When the two motors 210 drive the cleaning member 410 to move forward or backward, the two motors 210 rotate in opposite directions. As an alternative to this embodiment, the two sliders 230, the two transmission holes 231, and the two cams 220 can also be arranged identically. In this case, when the two motors 210 drive the cleaning member 410 to move forward or backward, the two motors 210 rotate in the same direction.

[0091] As an alternative to this embodiment, the scraping member 150 may be eliminated, and the dirt carried by the cleaning member 410 may be cleaned by relying on the negative pressure suction of the dirt-sucking airflow or other methods.

[0092] As an alternative to this embodiment, only one set of drive assembly 200 is provided, and the drive assembly 200 drives the cleaning member 410 to move forward and backward only through the side plate 420; or, only one set of drive assembly 200 is provided, and the drive assembly 200 drives the cleaning member 410 to move forward and backward only through the frame plate 170.

[0093] As an alternative to this embodiment, the driven member may also be a rack. In this case, the active member is a gear meshing with the rack. The gear is sleeved on the rotating shaft 211 of the motor 210. The rotating gear drives the side plate 420 and / or the frame plate 170 to move back and forth by meshing with the rack, thereby driving the cleaning member 410 to move back and forth.

[0094] As an alternative to this embodiment, the driving assembly 200 may also use a small telescopic motor, a small cylinder or other components that meet the driving requirements as the power component. In this case, the slider 230 may be directly connected to the power output end of the power component.

[0095] Combine Figure 13 The surface cleaning device can also be a handheld vacuum cleaner. In addition to the floor brush 100, the surface cleaning device also includes a dust cup 910 and a power source assembly 920. The power source assembly 920 is provided with a fan for providing negative pressure suction. The dust cup 910 and the power source assembly 920 are detachably connected. The floor brush 100 is connected to the dust cup 910 through a dust inlet pipe 930. The sewage suction port on the floor brush 100 is connected to the dust cup 910 through the dust inlet pipe 930. The floor brush 100 is provided with a cleaning member, a cleaning motor for driving the cleaning member to rotate, and a driving assembly for driving the cleaning member 410 to move back and forth in the roller brush chamber. For other structures of the floor brush 100, please refer to the above records and will not be repeated here. In addition, the dust inlet pipe 930 in this solution can adopt a one-stage structure or a two-stage hinged structure; when the dust inlet pipe adopts a two-stage hinged structure, the power source assembly 920, the dust cup 910 and the upper section of the dust inlet pipe 930 can be rotated downward relative to the lower section of the dust inlet pipe 930 so that the vacuum cleaner as a whole can be placed upright.

[0096] Example 2

[0097] Combine Figure 14When the cleaning element 410 adopts a crawler-type mop structure, the front portion of the roller brush cover 120 is suspended relative to the floor brush body 110, with a relatively large suspended length. Line K represents the front side wall of the floor brush body, and the portion of the roller brush cover 120 that extends forward relative to line K forms the suspended end. The anti-interference gap 160 is primarily located between the suspended end of the roller brush cover 120 and the top side of the circular mop. The roller brush cover 120 can adopt a multi-layer modular structure, with a locking fit structure provided between the rear end of the roller brush cover 120 and the floor brush body 110 to allow the roller brush cover 120 to be removably attached to the floor brush body. The leading edge of the suspended end of the roller brush cover 120 extends slightly downward, and the minimum width W1 of the anti-interference gap 160 is located between the leading edge of the suspended end and the cleaning element 410. A drive assembly is provided within the floor brush body, which drives the cleaning element 410 to move back and forth within the roller brush chamber over a distance less than W1.

[0098] In this embodiment, other structures of the surface cleaning device can refer to the first embodiment and will not be described in detail here.

[0099] In addition to the above preferred embodiments, the present invention has other implementation methods. Those skilled in the art can make various changes and modifications based on the present invention. As long as they do not depart from the spirit of the present invention, they should all fall within the scope defined in the claims of the present invention.

Claims

1. A surface cleaning device with a movable cleaning member, comprising: A floor brush comprises a floor brush body and a roller brush cover which cooperate to form a roller brush cavity, wherein the floor brush body is provided with a sewage suction port communicating with the roller brush cavity, and the rear end of the roller brush cover is attached to the floor brush body and the front end is suspended in the air; A scraping member is provided above the sewage suction port, wherein the rear side of the scraping member is fixedly provided and the front side extends into the roller brush cavity; A cleaning member detachably mounted on the roller brush chamber, the cleaning member mounted on the roller brush chamber being covered by the roller brush cover and being scraped and squeezed by the scraping member; It is characterized in that there is an anti-interference gap between the cleaning member and the suspended end of the roller brush cover; The floor brush is further provided with a driving assembly for driving the cleaning member to move back and forth in the roller brush chamber; The distance that the cleaning member driven by the driving assembly moves back and forth in the roller brush chamber is less than the minimum width of the anti-interference gap.

2. A surface cleaning device with a movable cleaning member according to claim 1, characterized in that: The cleaning member driven by the driving assembly has a first position in which it contacts the scraping member at the rear and a second position in which it is separated from the scraping member at the front. The distance moved by the cleaning member between the first position and the second position is less than the minimum width of the anti-interference gap.

3. A surface cleaning device with a movable cleaning member according to claim 1, characterized in that: The driving component drives the cleaning member to move back and forth in the roller brush chamber, and the one-way stroke is 3mm to 10mm.

4. A surface cleaning device with a movable cleaning member according to claim 1, characterized in that: One end of the cleaning member is provided with a side plate for support, and the floor brush is provided with a frame plate opposite to the side plate and used to support the other end of the cleaning member. The driving assembly drives the cleaning member to move back and forth in the roller brush chamber through the side plate and / or the frame plate.

5. A surface cleaning device with a movable cleaning member according to claim 4, characterized in that: The driving assembly is arranged in the floor brush body, and the side plate and the frame plate are driven respectively by two sets of driving assemblies and move forward and backward synchronously.

6. A surface cleaning device with a movable cleaning member according to claim 4, characterized in that: The driving assembly includes a motor, an active member, and a driven member that cooperates with the active member. The active member is connected to the rotating shaft of the motor, and the driven member is indirectly connected to the end of the cleaning member. The motor drives the cleaning member through the active member and the driven member.

7. A surface cleaning device with a movable cleaning member according to claim 2, characterized in that: The roller brush cover includes a suspended arc-shaped portion and an attachment portion detachably attached to the floor brush body, the arc-shaped portion bends and extends downward from rear to front, and the anti-interference gap is located between the arc-shaped portion and the cleaning member.

8. A surface cleaning device with a movable cleaning member according to claim 7, characterized in that: The cleaning member in the first position is substantially concentrically arranged with the arc-shaped portion.

9. The surface cleaning device with a movable cleaning member according to claim 7, characterized in that: The width of the interference prevention gap gradually decreases from rear to front when the cleaning member is in the second position.

10. The surface cleaning device with a movable cleaning member according to claim 7, characterized in that: The front edge of the arc portion is located between the central axis of the cleaning member and the front edge of the cleaning member in the front-to-back direction; and / or the front edge of the arc portion is lower than the upper edge of the cleaning member in the height direction.

Images