Surface cleaning device

Abstract

The utility model discloses a surface cleaning device, which belongs to the technical field of cleaning equipment and comprises a floor brush, the floor brush is provided with a dirt suction port and a cleaning part driven by a first motor, one end of the cleaning part is provided with a side plate and supported by the side plate, and one side of the floor brush corresponding to the side plate is provided with a movable part. The side plate is provided with a butt joint part matched with the movable part, the butt joint part is detachably connected with the movable part, and the movable part drives the cleaning part to move front and back through the side plate so as to adjust the front-back position of the cleaning part relative to the dirt suction opening. The movable part can drive the cleaning part to move front and back through the side plate so as to adjust the front-back position of the cleaning part relative to the dirt suction opening, and therefore clamped dirt can be sucked away through the dirt suction opening along with dirt suction airflow.

Description

Technical Field

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

[0002] With the development of science and technology, the variety of surface cleaning equipment has increased. Surface cleaning equipment has gradually entered people's homes and become a common appliance for cleaning floors. Existing handheld surface cleaners 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 cleaning element driven by a motor, 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 and form a dirt suction airflow that flows from the dirt suction port into the sewage bucket. Dirt scraped off the cleaning element by the scraping element can follow the dirt suction airflow into the sewage bucket. The scraping element is used to scrape 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] In existing handheld surface cleaners, the front-to-back position of the cleaning element after it is mounted on the floor brush is generally not adjustable, that is, the cleaning element remains fixed relative to the floor brush. Because the cleaning element is positioned almost directly against the front wall of the floor brush body, larger particles, hair, and other dirt can easily become stuck between the cleaning element and the front wall of the floor brush body and accumulate. This trapped dirt is difficult to be sucked away through the suction port by the suction airflow. Furthermore, the increasing accumulation of dirt can easily cause the cleaning element to stall, increasing the load on the motor driving the cleaning element and hindering the motor's performance stability. Furthermore, as dirt accumulates between the cleaning element and the front wall of the floor brush body, the dirt can push the cleaning element away from the scraping element, hindering the scraping effect of the scraping element on the cleaning element. Hair stuck between the cleaning element and the front wall of the floor brush body can also easily become entangled in the cleaning element, reducing the cleaning ability of the cleaning element and hindering its dirt removal efficiency and cleaning effect. 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, in which the movable part can drive the cleaning part to move forward and backward through the side panel so as to adjust the front and rear position of the cleaning part relative to the sewage suction port, so that the stuck dirt can be sucked away through the sewage suction port along with the sewage suction airflow.

[0005] In order to achieve the above-mentioned technical objectives, the utility model provides a surface cleaning device, including a floor brush, wherein the floor brush is provided with a sewage suction port and a cleaning member driven by a first motor, the sewage suction port is located behind the cleaning member, one end of the cleaning member is provided with a side panel and one end of the cleaning member is supported by the side panel, the floor brush is provided with a movable member on a side corresponding to the side panel, the side panel is provided with a docking portion cooperating with the movable member, the docking portion is detachably connected to the movable member, and the movable member drives the cleaning member to move forward and backward through the side panel to adjust the front and rear position of the cleaning member relative to the sewage suction port.

[0006] Preferably, the floor brush is provided with a frame plate arranged opposite to the side plate, the other end of the cleaning member is supported by the frame plate, the frame plate can be arranged to move forward and backward, and the frame plate moves synchronously with the side plate to drive the cleaning member to move forward and backward.

[0007] Preferably, the floor brush is provided with another movable part connected to the frame plate on one side corresponding to the frame plate, and the two movable parts are driven independently.

[0008] Preferably, the floor brush is provided with a scraping member located above the sewage suction port, and the cleaning member driven by the movable member moves backward to conflict with the scraping member or moves forward to separate from the scraping member.

[0009] Preferably, the cleaning member has a first position close to the sewage suction port and a second position away from the sewage suction port. A power member and a transmission structure are provided in the floor brush. The power member drives the movable member to move back and forth through the transmission structure, so that the movable member drives the cleaning member to move to the first position or the second position.

[0010] Preferably, the power part is a second motor provided with a rotating shaft, and the transmission structure includes a cam sleeved on the rotating shaft and a transmission hole provided on the movable part, the cam is inserted into the transmission hole, and the cam driven to rotate by the second motor drives the movable part to move forward and backward through cooperation with the transmission hole.

[0011] Preferably, the cam has a cylindrical main body and a protrusion protruding outward relative to the main body, locking surfaces are provided on opposite sides of the protrusion, and a stop portion corresponding to the locking surface is provided in the floor brush. When the cam rotates until one of the locking surfaces contacts the stop portion, the cleaning element is driven to the first position, and when the cam rotates until the other locking surface contacts the stop portion, the cleaning element is driven to the second position.

[0012] Preferably, the movable part is provided with a horizontal platform portion, the transmission hole is provided on the platform portion, the second motor is axially and vertically provided above the platform portion, the cam is axially and vertically inserted into the transmission hole, and a matching structure is provided between the cam and the floor brush to limit the cam.

[0013] Preferably, the docking portion is provided with a lock buckle, and the movable part corresponding to the side panel has a lock groove that cooperates with the lock buckle, and the docking portion is connected to the corresponding movable part through the cooperation between the lock buckle and the lock groove.

[0014] Preferably, the docking portion is further provided with an elastic member, which biases the lock buckle in the direction of cooperating with the lock groove; and / or, the docking portion is further provided with an operating member connected to the lock buckle, and the operating member has a recess or protrusion for operation.

[0015] After adopting the above technical solution, the utility model has the following advantages:

[0016] 1. The present invention provides a surface cleaning device, wherein one end of a cleaning member is supported by a side panel, the side panel being provided with a docking portion, and a movable member corresponding to the side panel is provided within a floor brush, the docking portion being detachably connected to the movable member. When the docking portion is connected to the movable member, the cleaning member is connected to the movable member via the side panel, and the movable member can drive the cleaning member forward and backward via the side panel to adjust the front-back position of the cleaning member relative to the sewage suction port. When dirt is stuck between the cleaning member and the floor brush, the movable member can drive the cleaning member forward and away from the sewage suction port via the side panel, thereby releasing the stuck dirt from the cleaning member and allowing the dirt to be sucked away through the sewage suction port by the suction airflow. This prevents the accumulated stuck dirt from increasing the driving load of the first motor, thereby ensuring the performance stability of the first motor and preventing the dirt from becoming entangled in the cleaning member due to the dirt not being sucked away in time, thereby reducing the cleaning ability of the cleaning member. In particular, this prevents stuck hair from becoming entangled in the cleaning member, thereby ensuring the cleaning ability of the cleaning member and, therefore, ensuring the dirt removal efficiency and cleaning effect of the cleaning member. After the dirt stuck between the cleaning member and the floor brush is sucked away or cleaned, the movable member can drive the cleaning member to move backward through the side plate to reset. The cleaning member moving backward is close to the sewage suction port, thereby ensuring the strength of the sewage suction airflow.

[0017] 2. The floor brush is provided with a frame that can move back and forth. The frame is arranged parallel to the side panels and opposite to each other. The other end of the cleaning element is supported by the frame, so that the cleaning element can rotate smoothly under the drive of the first motor. The side panels and frame are respectively driven by two movable parts and can move synchronously, so that the two ends of the cleaning element can move back and forth synchronously, improving the overall movement consistency of the cleaning element and preventing the cleaning element from getting stuck due to inconsistent movement of the two ends under the drive of the first motor.

[0018] 3. A separate movable member is provided within the floor brush, corresponding to the frame. The side panels and frame are driven by two separate movable members. This ensures that the two movable members exert their respective driving forces on the side panels and frame, respectively. This allows the side panels and frame, driven by the two movable members, to smoothly and synchronously drive the cleaning element forward and backward. Furthermore, since the two movable members are driven independently, there is no need for a transmission structure between them. This simplifies the structure for driving the movable members and avoids interference with other structures within the floor brush.

[0019] 4. A scraping member is provided above the sewage suction port. The movable member drives the cleaning member to move backward through the side panels and the frame plate, so that when the cleaning member collides with the scraping member, the scraping member can scrape and squeeze the cleaning member. The dirt squeezed out can be sucked away through the sewage suction port, thereby ensuring the cleaning ability of the cleaning member. When the movable member drives the cleaning member to move forward through the side panels and the frame plate, so that the cleaning member and the scraping member are separated, a certain gap is left between the cleaning member and the scraping member. The dirt stuck between the cleaning member and the scraping member can be sucked away through the sewage suction port. In addition, dirt such as hair, particulate matter, etc. that is trapped on the scraping member can also be sucked away through the sewage suction port.

[0020] 5. The floor brush is equipped with a power member and a transmission structure. The power member drives the movable member to move back and forth through the transmission structure. The movable member drives the cleaning member to move back and forth through the side panels and frame. The movement of the movable member is properly configured to simplify the connection structure between the movable member and the side panels and frame.

[0021] 6. The second motor, serving as the power element, has a rotating shaft with a cam mounted on it. The movable element is provided with a transmission hole, into which the cam is inserted. When the second motor is operating, the rotating shaft drives the cam to rotate. The rotating cam, through engagement with the transmission hole, drives the movable element forward or backward. The specific structure of the transmission structure is rationally designed to maintain a compact structure while meeting the driving requirements of the power element on the movable element and avoiding installation interference with other components within the floor brush.

[0022] 7. The cam is provided with a main body and a protruding portion. The main body is cylindrical, and the protruding portion protrudes outward relative to the main body. The opposite sides of the protruding portion form locking surfaces, and a stop portion is provided inside the floor brush. When the cam rotates until one of the locking surfaces contacts the stop portion, the cam cooperates with the transmission hole to cause the movable part to drive the cleaning part to move to the first position. When the cam rotates until the other locking surface contacts the stop portion, the cam cooperates with the transmission hole to cause the movable part to drive the cleaning part to move to the second position. The contact between the locking surface and the stop portion allows the cam and the movable part to be stably in a certain state, thereby allowing the cleaning part to be stably in the first position or the second position.

[0023] 8. The movable part is provided with a platform portion, the transmission hole is provided on the platform portion, the second motor is provided with an axially vertical position above the platform portion, the cam is provided with an axially vertical position on the rotating shaft, and the cam is inserted into the transmission hole. The specific structure of the movable part is reasonably arranged, and the space above the platform portion is used to provide the required installation space for the second motor and cam. The second motor, cam, and movable part are kept compact to avoid installation interference with other components in the floor brush.

[0024] A matching structure is provided between the cam and the floor brush to limit the cam. The matching structure limits the cam radially and axially, thereby improving the matching stability between the cam and the transmission hole, thereby improving the stability of the movable part driving the cleaning part to move forward and backward.

[0025] 9. A lock buckle is provided on the docking portion of the side panel, and a lock slot is provided on the movable member corresponding to the side panel. The lock buckle and the lock slot cooperate to enable the docking portion to achieve a detachable connection with the corresponding movable member. When the docking portion is connected to the corresponding movable member through the lock buckle and the lock slot, the lock buckle and the lock slot cooperate to keep the side panel fixed relative to the corresponding movable member, so that the movable member can smoothly drive the cleaning member to move back and forth. When the lock buckle disengages from the lock slot, the connection between the docking portion and the corresponding movable member is released, allowing the side panel to be smoothly separated from the movable member, thereby detaching the cleaning member from the floor brush.

[0026] 10. An elastic member is provided at the docking portion, which biases the lock buckle in the direction of cooperation with the lock groove, so that the lock buckle and the lock groove maintain a stable cooperation state when the docking portion is connected to the movable part, thereby maintaining a stable connection relationship between the side panel and the movable part, ensuring that the movable part can smoothly drive the cleaning part to move back and forth.

[0027] An operating piece connected to the lock is provided at the docking portion, and a recess or protrusion is provided on the operating piece. The user can apply force to the operating piece through the recess or protrusion. The operating piece subjected to force can drive the lock to move to release the lock between the lock and the lock groove, thereby releasing the connection between the side panel and the movable piece, so that the user can detach the cleaning piece from the floor brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a diagram of the entire surface cleaning device of Example 1;

[0029] Figure 2 A front-to-back cross-sectional view of the floor brush in the surface cleaning device of Example 1 when the cleaning member is in the first position;

[0030] Figure 3 A front-to-back cross-sectional view of the floor brush in the surface cleaning device of Example 1 when the cleaning member is in the second position;

[0031] Figure 4 This is a partial structural diagram of a floor brush in a surface cleaning device according to Example 1;

[0032] Figure 5 This is an exploded view of a portion of the structure of the floor brush in the surface cleaning device of Example 1;

[0033] Figure 6 It is a vertical cross-sectional view of a partial structure of a floor brush in a surface cleaning device according to Example 1;

[0034] Figure 7 It is a horizontal cross-sectional view of a partial structure of a floor brush in a surface cleaning device according to Example 1;

[0035] Figure 8 An exploded view of the lower housing and cam of the floor brush in the surface cleaning device of Example 1;

[0036] Figure 9 An exploded view of the side panels and docking portion of the surface cleaning device in Example 1;

[0037] Figure 10 This is a schematic structural diagram of a liquid supply assembly in a surface cleaning device according to Example 1;

[0038] Figure 11 This is an exploded view of the surface cleaning device of Example 1, in which the rotating cam cooperates with the transmission hole to drive the movable part to move from back to front;

[0039] Figure 12 This is a schematic structural diagram of a surface cleaning device in accordance with the first embodiment when it is a cleaning robot;

[0040] Figure 13 Schematic diagram of the structure of the surface cleaning device in Example 1 when it is a handheld vacuum cleaner.

[0041] In the figure, 100-floor brush, 110-sewage suction port, 120-scraping member, 130-connector, 140-main housing, 141-upper shell, 142-lower shell, 143-stop portion, 144-stop surface, 145-limiting concave hole, 146-limiting groove, 147-cover plate, 150-front cover, 160-accommodating chamber, 170-rack plate, 180-floor scraper,

[0042] 210-first motor, 220-cleaning member, 230-side plate, 240-docking portion, 241-locking buckle, 242-elastic member, 243-operating member, 244-recess, 250-hinge seat, 260-transmission head,

[0043] 300-body, 310-handle,

[0044] 400-liquid supply assembly, 410-clean water tank, 420-water pump, 430-water distribution component, 431-water outlet, 440-heating component,

[0045] 500-sewage suction assembly, 510-sewage bucket, 520-fan, 530-sewage suction channel,

[0046] 610-movable part, 611-platform part, 612-slider, 613-guide groove, 614-locking groove,

[0047] 620-power member, 621-second motor, 6211-rotating shaft, 630-transmission structure, 631-cam, 6311-body, 6312-protruding portion, 6313-first locking surface, 6314-second locking surface,

[0048] 632- transmission hole, 6321- idle stroke section, 6322- push-pull section, 6323- transition section,

[0049] 640-bracket, 650-guide rod,

[0050] 700-Control Module,

[0051] 810-dust cup, 820-power source assembly, 830-dust inlet pipe. DETAILED DESCRIPTION

[0052] 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.

[0053] Example 1

[0054] Combine Figures 1 to 11 A surface cleaning device provided in a first embodiment of the present invention includes a floor brush 100, which is provided with a sewage suction port 110 and a cleaning member 220 driven by a first motor 210. The sewage suction port 110 is located behind the cleaning member 220. A side plate 230 is provided at one end of the cleaning member 220, and one end of the cleaning member 220 is supported by the side plate 230. A movable member 610 is provided on a side of the floor brush 100 corresponding to the side plate 230. The side plate 230 is provided with a docking portion 240 that cooperates with the movable member 610. The docking portion 240 is detachably connected to the movable member 610. The movable member 610 drives the cleaning member 220 to move forward and backward through the side plate 230 to adjust the front-back position of the cleaning member 220 relative to the sewage suction port 110.

[0055] When the docking portion 240 is connected to the movable part 610, the cleaning part 220 is connected to the movable part 610 through the side plate 230. The movable part 610 can drive the cleaning part 220 to move forward and backward through the side plate 230 to adjust the front and rear position of the cleaning part 220 relative to the sewage suction port 110. When dirt is stuck between the cleaning member 220 and the floor brush 100, the movable member 610 can drive the cleaning member 220 to move forward away from the sewage suction port 110 through the side plate 230, so that the cleaning member 220 releases the stuck dirt so that the dirt can be sucked away through the sewage suction port 110 along with the sewage suction airflow, thereby avoiding the situation where the stuck dirt accumulates more and more, resulting in an increasing driving load of the first motor 210, thereby ensuring the performance stability of the first motor 210, and also avoiding the situation where the dirt cannot be sucked away in time and is entangled on the cleaning member 220, resulting in a reduction in the cleaning ability of the cleaning member 220, especially avoiding the situation where the stuck hair is entangled on the cleaning member 220, thereby ensuring the cleaning ability of the cleaning member 200, and then ensuring the dirt removal efficiency and cleaning effect of the cleaning member 220. After the dirt stuck between the cleaning member 220 and the floor brush 100 is sucked away or cleaned, the movable member 610 can drive the cleaning member 220 to move backward through the side panel 230 for reset. The cleaning member 220 moving backward approaches the sewage suction port 110, thereby ensuring the strength of the sewage suction airflow.

[0056] Combine Figure 1 This embodiment is described by taking a handheld surface cleaning machine 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 end of the body 300 is pivotally connected to the floor brush 100 via a joint 130. The body 300 can swing back and forth relative to the floor brush 100. Figure 2 、 Figure 3 、 Figure 4 The floor brush 100 includes a main housing 140 and a front cover 150. The front cover 150 is detachably mounted on the front side of the main housing 140. When the front cover 150 is mounted on the front side of the main housing 140, the front cover 150 and the main housing 140 cooperate to form a receiving cavity 160. The cleaning member 220 is detachably mounted in the receiving cavity 160. The cleaning member 220 can adopt an existing single roller brush structure, a double roller brush structure, or a crawler mop structure, and no further restrictions are imposed herein.

[0057] In this embodiment, the planar direction of the side plate 230 is perpendicular to the axial direction of the cleaning member 220. One end of the cleaning member 220 is rotatably mounted on the side plate 230 via a bearing, thereby supporting one end of the cleaning member 220 on the side plate 230. When the cleaning member 220 is installed on the floor brush 100, the side plate 230 is located on the left or right side of the main housing 140. The main housing 140 is provided with a frame plate 170 on the side opposite the side plate 230. When the cleaning member 220 is installed on the floor brush 100, the frame plate 170 is arranged opposite the side plate 230 in a horizontally parallel relationship. That is, the planar direction of the frame plate 170 is also perpendicular to the axial direction of the cleaning member 220. The frame 170 is provided with an articulated seat 250 on one side facing the center of the floor brush 100. One end of the first motor 210 is hingedly connected to the frame 170 via a hinge shaft that mates with the articulated seat 250. A transmission head 260 is provided at the other end of the first motor 210. The cleaning member 220 is hollow and has a hole within it that mates with the transmission head 260. When the cleaning member 220 is installed on the floor brush 100, the first motor 210 and the transmission head 260 are housed within the cleaning member 220. The end of the cleaning member 220 facing the frame 170 is sleeved outside the articulated seat 250, so that the ends of the cleaning member 220 are supported by the frame 170. Specifically, the ends of the cleaning member 220 are supported by the side panels 230 and the frame 170, respectively. When the first motor 210 is in operation, the transmission head 260 drives the cleaning member 220 to rotate about its central axis, and the rotating cleaning member 220 wipes the surface to be cleaned. As an alternative to this embodiment, the first motor 210 may also be fixedly connected to the frame 170. As an alternative to this embodiment, when the cleaning member 220 adopts a single roller brush structure, the first motor 210 for driving the cleaning member 220 may also be directly disposed inside the cleaning member 220; when the cleaning member 220 adopts a dual roller brush structure, the first motor 210 for driving the cleaning member 220 may be disposed inside one of the roller brushes, and a transmission assembly may be disposed between the two roller brushes; when the cleaning member 220 adopts a crawler mop structure, the first motor 210 for driving the cleaning member 220 may be disposed inside one of the roller brushes.

[0058] The surface cleaning device of this embodiment further includes a liquid supply component 400, Figure 10The liquid supply assembly 400 includes a clean water tank 410, a water pump 420, and a water distribution member 430, which are arranged in sequence from upstream to downstream through pipelines. The clean water tank 410 can be detachably mounted on the body 300 or the main housing 140 of the floor brush 100, or fixed to the bottom of the front cover 150. The water pump 420 is located within the main housing 140 of the floor brush 100. The water distribution member 430 is located on the front side of the main housing 140 or at the bottom of the front cover 150. The water distribution member 430 is located above the sewage suction port 110 and has a plurality of water outlet holes 431 spaced apart in the left-right direction. The water outlet holes 431 are arranged toward the cleaning element 220. The cleaning liquid in the clean water tank 410 flows into the water distribution member 430 under the pumping action of the water pump 420. The cleaning liquid flowing into the water distribution member 430 is sprayed from the water outlet holes 431 onto the cleaning element 220, thereby allowing the cleaning element 220 to absorb the liquid and moisten it. As a preferred solution of this embodiment, the water distribution member 430 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 430. As an improvement to this embodiment, the liquid supply component 400 can be provided with a heating component 440 upstream of the water diversion component 430. The heating component 440 is used to heat the liquid flowing through, and the heated liquid is sprayed out from the water diversion component 430. As an alternative to this embodiment, the liquid supply component 400 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 430. 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 400 can spray the cleaning liquid onto the surface to be cleaned through the spray component.

[0059] In this embodiment, the sewage suction port 110 is located in the center of the main housing 140 of the floor brush 100, and the sewage suction port 110 is connected to the accommodating chamber 160. The surface cleaning device of this embodiment also includes a sewage suction assembly 500, which includes a sewage bucket 510 and a fan 520. The sewage bucket 510 is detachably mounted on the body 300. A sewage suction channel 530 is provided between the body 300 and the main housing 140 for connecting the sewage suction port 110 and the sewage bucket 510. The specific structure of the sewage bucket 510 can refer to the prior art and will not be described here. The fan 520 can be located at 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 520 is working, it provides suction to form a negative pressure in the sewage bucket 510 and form a sewage suction airflow flowing from the sewage suction port 110 into the sewage bucket 510. The dirt at the sewage suction port 110 can flow into the sewage bucket 510 along the sewage suction airflow, thereby collecting the dirt.

[0060] To ensure the cleaning ability of the cleaning member 220, in this embodiment, the floor brush 100 is further provided with a scraping member 120 for scraping the cleaning member 220. The scraping member 120 is located above the sewage suction port 110 and extends in the left-right direction. The scraping member 120 can adopt a single scraping bar structure, a single comb tooth structure, or a structure combining a scraping bar and comb teeth. The specific structure of the scraping member 120 is not limited here. The floor brush 100 is further provided with a floor scraper 180 located below the sewage suction port 110. The floor scraper 180 extends in the left-right direction, and the front edge of the floor scraper 180 extends downward and can contact the surface to be cleaned. The water diverter 430, the scraper 120, the sewage suction port 110 and the floor scraper 180 are distributed in sequence from top to bottom. The scraper 120 and the water diverter 430 can be arranged together at the bottom of the front cover 150, and the scraper 120 and the water diverter 430 can also be arranged together on the front side of the main shell 140. The scraper 120 and the water diverter 430 can also be arranged on the front side of the main shell 140 and the bottom of the front cover 150 respectively. The floor scraper 180 is fixed at the lower edge of the front side of the main shell 140.

[0061] In this embodiment, to enable the cleaning member 220 to move synchronously back and forth as a whole, the frame 170 is movably arranged relative to the main housing 140. The floor brush 100 is provided with another movable member 610 connected to the frame 170 on the side corresponding to the frame 170. The side panels 230 and the frame 170 are respectively driven by the two movable members 610 and can move synchronously, thereby enabling both ends of the cleaning member 220 to move synchronously back and forth, improving the overall movement consistency of the cleaning member 220 and preventing the cleaning member 220 from being stuck in rotation under the drive of the first motor 210 due to inconsistent movement of both ends.

[0062] Combine Figure 5 、 Figure 6 In this embodiment, the two movable members 610 are preferably driven independently. This eliminates the need for a transmission device between the two movable members 610, simplifies the structure for driving the movable members 610, and avoids interference with other structures within the floor brush 100. Specifically, the two movable members 610 are disposed on the left and right sides of the main housing 140, respectively. The main housing 140 includes a power member 620 and a transmission structure 630 corresponding to each movable member 610. The power member 620 drives the corresponding movable member 610 to move back and forth via the transmission structure 630. The two movable members 610 that move back and forth synchronously drive the cleaning member 220 as a whole to move back and forth synchronously via the side panels 230 and the frame panel 170.

[0063] Combine Figure 2 、 Figure 3In this embodiment, the cleaning member 220 has a first position close to the sewage suction port 110 and a second position away from the sewage suction port 110. The power member 620 drives the movable member 610 to move forward and backward through the transmission structure 630. The movable member 610 that moves forward and backward drives the cleaning member 220 to move to the first position or the second position through the side plate 230 and the frame plate 170. Figure 2 When the cleaning member 220 is in the first position, the cleaning member 220 is relatively far back in the accommodating cavity 160, and the distance between the central axis L of the cleaning member 220 and the front edge of the scraping member 120 is D1. The cleaning member 220 contacts the scraping member 120, that is, the front end of the scraping member 120 extends into the bristles or fluff of the outer layer of the cleaning member 220 and does not contact the base layer of the cleaning member 220, so that the scraping member 120 effectively scrapes and squeezes the cleaning member 220 while preventing the cleaning member 220 from being damaged. Figure 3 When the cleaning member 220 is in the second position, the cleaning member 220 is relatively forward in the accommodating cavity 160, and the distance between the central axis L of the cleaning member 220 and the front edge of the scraping member 120 is D2, D2>D1, and the cleaning member 220 is basically separated from the scraping member 120, or there is a certain gap between the cleaning member 220 and the scraping member 120, so that the scraping member 120 cannot scrape the cleaning member 220.

[0064] In this embodiment, the main housing 140 of the floor brush 100 includes an upper housing 141 and a lower housing 142 that are connected and fixed together. The upper housing 141 and the lower housing 142 cooperate to form a hollow cavity. The movable part 610, the power part 620 and the transmission structure 630 are arranged in the hollow cavity of the main housing 140. Figure 7 Specifically, the power member 620 utilizes a second motor 621, which is provided with a rotating shaft 6211. The transmission structure 630 includes a cam 631 sleeved on the rotating shaft 6211 and a transmission hole 632 provided on the movable member 610, with the cam 631 inserted into the transmission hole 632. When the second motor 621 is in operation, the rotating shaft 6211 drives the cam 631 to rotate synchronously. The cam 631, in conjunction with the transmission hole 632, drives the movable member 610 to move back and forth. The two synchronously moving movable members 610 drive the cleaning member 220 to move back and forth via the side plate 230 and the frame plate 170, respectively.

[0065] Specifically in this embodiment, the movable member 610 is provided with a platform portion 611 that is substantially horizontally arranged, a transmission hole 632 is provided on the platform portion 611 and passes through the platform portion 611 in the vertical direction, the second motor 621 is axially and vertically fixed above the platform portion 611 through the bracket 640, and the rotating shaft 6211 is arranged downward, and accordingly, the cam 631 is axially and vertically inserted into the transmission hole 632. Figure 11The cam 631 has a cylindrical main body 6311 and a protrusion 6312 protruding radially outward relative to the main body 6311. The cross-section of the protrusion 6312 perpendicular to the axial direction is roughly triangular. The axial height of the protrusion 6312 is less than the axial height of the main body 6311 and the protrusion 6312 is located at the upper part of the cam 631. The two side surfaces of the protrusion 6312 parallel to the axial direction of the cam 631 constitute a first locking surface 6313 and a second locking surface 6314. The axial height of the two locking surfaces is also less than the axial height of the main body 6311. Figure 8 The lower shell 142 is provided with a stop portion 143 located below the platform portion 611. The side surface of the stop portion 143 facing the cam 631 constitutes a stop surface 144. The protrusion 6312 is located in the transmission hole 632. At least a portion of the stop portion 143 is located within the axial projection range of the transmission hole 632, so that the two locking surfaces can contact the stop surface 144 to limit the rotation range of the cam 631. When the cam 631 rotates in the direction indicated by +ω until the first locking surface 6313 contacts the stop surface 144, the cam 631, through cooperation with the transmission hole 632, drives the movable member 610 to move backward to a rearward position. At this time, the backward moving movable member 610 drives the cleaning member 220 to move backward to the first position. When the cam 631 rotates in the direction indicated by -ω until the second locking surface 6314 contacts the stop surface 144, the cam 631 cooperates with the transmission hole 632 to drive the movable member 610 to move forward to the forward position. At this time, the forward-moving movable member 610 drives the cleaning member 220 to move forward to the second position. As an alternative to this embodiment, the stop portion 143 can also be provided above the platform portion 611 and formed on the bottom surface of the upper shell 141.

[0066] Combine Figure 11The wall of the transmission hole 632 is circumferentially defined in three sections: an idle travel section 6321, a push-pull section 6322, and a transition section 6323. Points A and B in the figure represent the endpoints of the idle travel section 6321. The idle travel section 6321 has the same radius, and its center substantially coincides with the center of the main body 6311, indicated by point E. Points B and C represent the endpoints of the push-pull section 6322. The distance between the push-pull section 6322 and point E gradually decreases from point B to point C. Points C and A represent the endpoints of the transition section 6323. The distance between the transition section 6323 and point E gradually increases from point C to point A. During the process in which the second motor 621 drives the cam 631 to rotate in the direction indicated by -ω, causing the cleaning element 220 to move from the first position to the second position, the protrusion 6312 of the cam 631 first engages with the idle travel section 6321. At this point, the movable member 610 does not move, so the cleaning element 220 remains in the first position during the initial adjustment phase. When the cam 631 rotates until the protrusion 6312 engages the push-pull section 6322, the rotating cam 631 drives the movable member 610 forward. The forward-moving movable member 610 drives the cleaning member 220 forward through the side plate 230 and the frame plate 170. The idle travel section 6321 of the transmission hole 632 allows the cam 631 to rotate to a suitable angle before engaging the push-pull section 6322 to drive the movable member 610 forward. This reduces the driving load of the second motor 621 in its initial operating state, facilitating smooth startup of the second motor 621.

[0067] In order to ensure that the cleaning member 220 can be stably maintained in the first position, when the cam 631 is in a state where the first locking surface 6313 contacts the stop surface 144, the protrusion 6312 is set to face backward, and the protrusion 6312 cooperates with the transmission hole 632 to cause the movable member 610 to be subjected to a backward force, thereby causing the cleaning member 220 to be subjected to a backward pre-tightening force.

[0068] To enhance the structural stability of the cam 631, a mating structure is provided between the cam 631 and the main housing 140 to limit the cam 631. Specifically, the lower housing 142 is provided with a limiting recess 145 located below the platform 611. The lower end of the main body 6311 is inserted into the limiting recess 145. The mating of the main body 6311 and the limiting recess 145 limits the cam 631 in both radial and axial directions. As an alternative to this embodiment, the limiting recess 145 can also be provided at the lower end of the cam 631. In this case, the lower housing 142 is provided with an upwardly protruding limiting post, which is inserted into the limiting recess to limit the cam 631.

[0069] In this embodiment, to improve the stability of the forward and backward movement of the movable member 610, a slider 612 is provided on the side of the movable member 610 facing away from the platform portion 611. A guide structure is provided between the slider 612 and the main housing 140. Specifically, a guide rod 650 extending in the forward and backward direction is provided between the main housing 140 and the slider 612. The slider 612 is provided with a guide groove 613 that cooperates with the guide rod 650. The cooperation between the guide rod 650 and the guide groove 613 limits the forward and backward movement of the movable member 610. Furthermore, guide grooves 613 are provided on the top and bottom walls of the slider 612, the lower shell 142 is provided with a limiting groove 146 corresponding to the guide groove 613 on the bottom wall of the slider 612, and a cover plate 147 is provided in the main shell 140 at the top of the slider 612, and the bottom surface of the cover plate 147 is provided with a limiting groove 146 corresponding to the guide groove 613 on the top wall of the slider 612, and a guide rod 650 is provided on the top and bottom of the slider 612, part of the guide rod 650 is embedded in the guide groove 613 of the slider 612, and the other part of the guide rod 650 is embedded in the limiting groove 146.

[0070] Since the side plate 230 and the cleaning member 220 together constitute a component that can be detachably mounted on the floor brush 100, a locking structure for maintaining the connection between the docking portion 240 and the corresponding movable member 610 needs to be provided between the side plate 230 and the corresponding movable member 610. Figure 9In this embodiment, the docking portion 240 of the side panel 230 is provided with a latch 241. The movable member 610 corresponding to the side panel 230 has a latch groove 614 that engages with the latch 241. The docking portion 240 is connected to the corresponding movable member 610 through the engagement of the latch 241 with the latch groove 614. Furthermore, the latch groove 614 is provided on a slider 612. The latch 241 is slidably disposed on the side of the frame 170 facing the movable member 610. The docking portion 240 is also provided with an elastic member 242 that biases the latch 241 toward engagement with the latch groove 614. The elastic member 242 can be a spring or other component. One end of the elastic member 242 abuts against a protrusion on the side panel 230 to achieve positioning, while the other end of the elastic member 242 abuts against the latch 241 to contact the latch 241. The elastic member 242 is in a compressed state and biases the latch 241 toward engagement with the latch groove 614. To facilitate the user unlocking the lock buckle 241 and the lock slot 614, the docking portion 240 is further provided with an operating member 243 connected to the lock buckle 241. The operating member 243 is located on the side of the side panel 230 facing away from the movable member 610. The operating member 243 and the lock buckle 241 can be fixed together by means of fasteners or other means. The operating member 243 has a recess 244 or a protrusion for user operation. The user can apply force to the operating member 243 through the recess 244 or the protrusion. The operating member 243 under force can drive the lock buckle 241 to overcome the bias of the elastic member 242 and move out of the lock slot 614, thereby releasing the engagement between the lock buckle 241 and the lock slot 614, thereby releasing the connection between the docking portion 240 and the corresponding movable member 610, and allowing the cleaning member 220 to be detached from the floor brush 100.

[0071] 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 movable part 610 through a fastener or a buckle or other structure.

[0072] The surface cleaning device is further provided with a control module 700 , to which electrical components such as the fan 520 , the first motor 210 , the second motor 621 , the water pump 420 , and buttons on the body 300 are all electrically and / or signal-connected.

[0073] When the surface cleaning device is working normally, the cleaning member 220 is in the first position, the first motor 210 drives the cleaning member 220 to rotate, the liquid supply assembly 400 provides cleaning liquid to the cleaning member 220, and the fan 520 provides suction to form a negative pressure in the sewage bucket 510 and form a sewage suction airflow flowing from the sewage suction port 110 to the sewage bucket 510. After the cleaning member 220 absorbs the liquid and moistens it, it wipes the surface to be cleaned. The scraping member 120 scrapes and squeezes the cleaning member 220, and the scraped dirt is sucked into the sewage bucket 510 through the sewage suction port 110 under the action of the sewage suction airflow.

[0074] When the device is finished operating or cleaning, or when dirt is detected to be stuck between the scraper 120 and the main housing 140, the second motor 621 drives the movable member 610 forward via the cam 631 and the transmission hole 632. The movable member 610, which is moving forward, drives the cleaning member 220 as a whole forward from the first position to the second position through the frame 170 and the side plate 230, thereby disengaging the cleaning member 220 from the scraper 120. This allows the dirt stuck between the cleaning member 220 and the main housing 140, and the dirt retained on the scraper 120, to be sucked into the sewage bucket 510 through the suction port 110 under the action of the suction airflow. After the stuck dirt is cleaned, the second motor 621 drives the movable member 610 backward via the cam 631 and the transmission hole 632. The movable member 610, which is moving backward, drives the cleaning member 220 as a whole backward from the second position to the first position through the frame 170 and the side plate 230, thereby re-engaging the cleaning member 220 with the scraper 120.

[0075] In this embodiment, the two movable members 610, the two transmission holes 632, and the two cams 631 are all arranged symmetrically. The two second motors 621 drive the cleaning member 220 to rotate in opposite directions when moving forward or backward. As an alternative to this embodiment, the two movable members 610, the two transmission holes 632, and the two cams 631 can also be arranged identically. In this case, the two second motors 621 drive the cleaning member 220 to rotate in the same direction when moving forward or backward.

[0076] As an alternative to this embodiment, the scraping member 120 may be eliminated, and the dirt carried by the cleaning member 220 may be cleaned by relying on the negative pressure suction of the dirt-sucking airflow or other methods.

[0077] As an alternative to this embodiment, the movable member 610, the second motor 621 and the cam 631 corresponding to the frame 170 may be eliminated, and only the movable member 610, the second motor 621 and the cam 631 corresponding to the side plate 230 may be used to drive the cleaning member 220 to move back and forth.

[0078] As an alternative to this embodiment, the power member 620 may also be a small telescopic motor, a small cylinder or other components that meet the driving requirements. In this case, the movable member 610 is directly connected to the moving part of the power member 620 .

[0079] As an alternative to this embodiment, the movable part 610 can also use a rack. In this case, a gear is mounted on the rotating shaft 6211 of the second motor 621. The rotating gear drives the movable part 610 to move back and forth by engaging with the rack, so that the movable part 610 can drive the cleaning part 220 to move back and forth.

[0080] As an alternative to this embodiment, the transmission structure 630 can also adopt a small screw-nut structure. In this case, the nut can serve as a component of the rotor part of the second motor 621. The movable part 610 is connected to the screw, and the second motor 621 drives the movable part 610 to move back and forth through the screw-nut structure, so that the movable part 610 can drive the cleaning part 220 to move back and forth.

[0081] Combine Figure 12 The surface cleaning device may also be a self-propelled cleaning robot, comprising a cavity for mounting a cleaning member 220. The cleaning member 220 is disposed within the cavity, and the sewage suction port 110 is disposed at the rear side of the cavity and in communication with the cavity. A movable member within the cleaning robot can drive the cleaning member 220 back and forth to adjust its position relative to the sewage suction port 110. In this embodiment, the cleaning member 220 can be removably mounted within the cavity. In this embodiment, a side panel is disposed at one end of the cleaning member 220, and a frame that can move back and forth is disposed within the cleaning robot. The movable member drives the cleaning member 220 back and forth via the side panel and frame. Of course, the frame may be omitted from the cleaning robot, with the movable member only driving the cleaning member back and forth via the side panel. Furthermore, in this embodiment, when the cleaning robot is provided with a liquid supply assembly for supplying cleaning liquid to the cleaning member 220, a scraping member is provided for scraping the cleaning member 220. The scraping member may be a single scraping bar, a single comb tooth structure, or a combination of a scraping bar and comb teeth. Of course, the cleaning robot may also cancel the setting of the liquid supply component. In this case, the setting of the scraping member may be canceled, or only the comb teeth for combing the cleaning member 220 may be provided.

[0082] Combine Figure 13The surface cleaning device may also be a vacuum cleaner, which may be a handheld vacuum cleaner or a self-propelled vacuum cleaner. When the surface cleaning device is a handheld vacuum cleaner, in addition to the floor brush 100, the surface cleaning device also includes a dust cup 810 and a power source assembly 820. The power source assembly 820 is provided with a fan for providing negative pressure suction. The dust cup 810 and the power source assembly 820 are detachably connected. The floor brush 100 is connected to the dust cup 810 via a dust inlet pipe 830. The suction port on the floor brush 100 is connected to the dust cup 810 via the dust inlet pipe 830. The floor brush 100 is provided with a cleaning member 220 and a first motor for driving the cleaning member 220. The cleaning member 220 is detachably mounted on the floor brush 100. A side panel is provided at one end of the cleaning member 220. The floor brush 100 is provided with a frame panel opposite to the side panel. The floor brush 100 is provided with a movable member and a second motor for driving the movable member. The movable member driven by the second motor drives the cleaning member 220 to move back and forth through the side panel and the frame panel. In this embodiment, the floor brush 100 can be provided with comb teeth for combing the cleaning member 220. Alternatively, the frame plate can be omitted from this solution, with the movable member driven by the second motor merely driving the cleaning member 220 forward and backward via the side plate. Furthermore, the dust inlet pipe 830 in this solution can be a one-piece structure or a two-piece hinged structure. When the dust inlet pipe 830 is a two-piece hinged structure, the suction source assembly 820, the dust cup 830, and the upper portion of the dust inlet pipe 830 can be rotated downward relative to the lower portion of the dust inlet pipe 830, allowing the entire vacuum cleaner to be placed upright.

[0083] 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 comprising a floor brush, wherein the floor brush is provided with a dirt suction port and a cleaning member driven by a first motor, wherein the dirt suction port is located behind the cleaning member, wherein: One end of the cleaning member is provided with a side panel and one end of the cleaning member is supported by the side panel, the floor brush is provided with a movable member on a side corresponding to the side panel, the side panel is provided with a docking portion cooperating with the movable member, the docking portion is detachably connected to the movable member, and the movable member drives the cleaning member to move forward and backward through the side panel to adjust the front and rear position of the cleaning member relative to the sewage suction port.

2. A surface cleaning device according to claim 1, characterized in that: The floor brush is provided with a frame plate arranged opposite to the side plate, the other end of the cleaning member is supported by the frame plate, the frame plate can be arranged to move forward and backward, and the frame plate and the side plate move synchronously to drive the cleaning member to move forward and backward.

3. A surface cleaning device according to claim 2, characterized in that: The floor brush is provided with another movable part connected with the frame plate on one side corresponding to the frame plate, and the two movable parts are driven independently.

4. A surface cleaning device according to claim 1 or 2, characterized in that: The floor brush is provided with a scraping member located above the dirt suction port, and the cleaning member driven by the movable member moves backward to conflict with the scraping member or moves forward to separate from the scraping member.

5. A surface cleaning device according to claim 1, characterized in that: The cleaning member has a first position close to the sewage suction port and a second position away from the sewage suction port. A power member and a transmission structure are provided in the floor brush. The power member drives the movable member to move back and forth through the transmission structure, so that the movable member drives the cleaning member to move to the first position or the second position.

6. A surface cleaning device according to claim 5, characterized in that: The power part is a second motor provided with a rotating shaft. The transmission structure includes a cam sleeved on the rotating shaft and a transmission hole provided on the movable part. The cam is inserted into the transmission hole. The cam driven to rotate by the second motor drives the movable part to move forward and backward through cooperation with the transmission hole.

7. A surface cleaning device according to claim 6, characterized in that: The cam has a cylindrical main body and a protrusion protruding outward relative to the main body, locking surfaces are provided on opposite sides of the protrusion, and a stop portion corresponding to the locking surface is provided in the floor brush. When the cam rotates until one of the locking surfaces contacts the stop portion, the cleaning element is driven to the first position, and when the cam rotates until the other locking surface contacts the stop portion, the cleaning element is driven to the second position.

8. A surface cleaning device according to claim 6, characterized in that: The movable part is provided with a horizontal platform portion, the transmission hole is provided on the platform portion, the second motor is axially and vertically provided above the platform portion, the cam is axially and vertically inserted into the transmission hole, and a matching structure is provided between the cam and the floor brush to limit the cam.

9. A surface cleaning device according to claim 1, characterized in that: The docking portion is provided with a lock buckle, and the movable part corresponding to the side plate has a lock groove matched with the lock buckle. The docking portion is connected to the corresponding movable part through the cooperation of the lock buckle and the lock groove.

10. A surface cleaning device according to claim 9, characterized in that: The docking portion is further provided with an elastic member, which biases the lock buckle in a direction of cooperating with the lock slot; and / or the docking portion is further provided with an operating member connected to the lock buckle, and the operating member has a recess or protrusion for operation.

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