Surface cleaning device with good cleaning effect

Abstract

The utility model discloses a surface cleaning device with a good cleaning effect, which belongs to the technical field of cleaning equipment and comprises a floor brush with a cleaning part and a driving motor for driving the cleaning part to rotate, a dirt suction port is arranged at the front end of the floor brush, and the cleaning part is positioned in front of the dirt suction port. Two power pieces and two movable pieces driven by the two power pieces respectively are further arranged in the floor brush, the two movable pieces are arranged close to the left end and the right end of the floor brush respectively and connected with the left end and the right end of the cleaning piece respectively, the two power pieces are located on the inner sides of the two movable pieces, and the two power pieces operate in different directions. The two movable parts drive the two ends of the cleaning part to move synchronously, so that the distance between the cleaning part and the dirt suction opening is adjusted, the cleaning part drives dirt to move in the moving process, the clamped dirt is loosened or separated from the cleaning part, and the dirt can be sucked away along with dirt suction airflow through the dirt suction opening. Therefore, cleaning power is improved, and cleaning burden of customers is relieved.

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 the cleaning element 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 flow into the sewage bucket along with the dirt suction airflow. However, in existing surface cleaning machines, the front-to-back position of the cleaning element after it is installed on the floor brush cannot be adjusted, that is, the front-to-back position of the cleaning element relative to the floor brush remains fixed. Since the cleaning element is arranged almost closely to the front wall of the floor brush body, larger particles or hair and other dirt can easily get stuck between the cleaning element and the front wall of the floor brush body and accumulate. In particular, some hairs can become increasingly entangled on the roller brush under the scraping action of the scraping element, preventing them from being sucked away through the suction port along with the suction airflow. The increasing accumulation of dirt can easily cause the cleaning element to stall, increasing the driving load of the motor driving the cleaning element and hindering the performance stability of the motor. Hairs stuck between the cleaning element and the front wall of the floor brush body can also easily become entangled on the cleaning element, reducing the cleaning ability of the cleaning element, hindering the dirt removal efficiency and cleaning effect of the cleaning element. Manual cleaning is also required, placing a cleaning burden on the customer.

[0003] In the industry, a comb structure is generally provided on the floor brush in the hope of stripping the dirt and entangled hair in the cleaning tufts from the roller brush, or the entangled hair is cut off by a shearing structure and then sucked away. For example, the patent application number 201710386424.X entitled "Roller Brush Cleaning Mechanism and Vacuum Cleaner" discloses a roller brush cleaning mechanism and a vacuum cleaner, which relates to the technical field of cleaning equipment, including a scraper assembly, a roller brush assembly and a pushing device; the roller brush assembly includes a roller brush shaft and a roller brush cylinder, and the roller brush shaft is connected to the roller brush cylinder; a preset distance is set between the scraper assembly and the roller brush cylinder, and the pushing device is connected to the roller brush shaft; the roller brush cylinder is driven by the pushing device to move the roller brush cylinder to the position of the scraper assembly, so that the scraper assembly abuts against the roller brush cylinder, and the hair entangled on the outside of the roller brush cylinder is cut off to achieve cleaning of the roller brush; although the technical solution of this patent solves the technical problems of hair entangled in the floor brush, which is difficult to clean and causes internal malfunctions of the vacuum cleaner in the prior art. However, the pushing device has a complex structure and occupies a large space of the floor brush, which makes the front end of the floor brush higher, making it difficult for the floor brush to enter the low space for cleaning. Moreover, the pushing device is directly connected to the roller brush shaft, and the roller brush is longer. If the pushing device pushes the roller brush barrel in a poorly synchronized manner, it will be skewed, which not only affects the use of the roller brush in normal cleaning work, but also causes the abutment effect between the roller brush barrel and the scraper assembly, thereby affecting the inability to cut off some of the hair wrapped around the outside of the roller brush, which still gives customers a bad experience. 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, which drives the movable part to move by setting two power parts with different directions, thereby driving the two ends of the cleaning part to move synchronously, so as to adjust the front and rear positions 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 technical objectives, the utility model provides a surface cleaning device with good cleaning effect, including a floor brush with a cleaning member and a driving motor for driving the cleaning member to rotate, the front end of the floor brush is provided with a sewage suction port, the cleaning member is located in front of the sewage suction port, and the floor brush is also provided with two power members and two movable members driven by the two power members respectively. The two movable members are respectively arranged near the left and right ends of the floor brush and are respectively connected to the left and right ends of the cleaning member. The two power members are located on the inner sides of the two movable members, and the two power members have different operating directions, so that the two ends of the cleaning member are driven to move synchronously by the two movable members, thereby adjusting the distance between the cleaning member and the sewage suction port.

[0006] Preferably, the two power members are two independently arranged motors, the two motors have opposite directions of rotation, one end of the cleaning member is provided with a side plate, the side plate is provided with a docking portion cooperating with one of the movable members, the docking portion is detachably connected to the movable member, and the other movable member is provided with a connecting member, the other end of the cleaning member is sleeved on the connecting member and rotates relatively on the connecting member, and the two motors rotate to drive the two movable members to move synchronously, so that the cleaning member driven by the two movable members moves back and forth relative to the floor brush; or, the two power members are two independently arranged motors, the two motors have opposite directions of rotation, one end of the cleaning member is provided with a side plate, the side plate is provided with a docking portion cooperating with one of the movable members, the docking portion is detachably connected to the movable member, 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 moves back and forth under the drive of the other movable member, and the frame plate and the side plate move synchronously under the drive of the two motors to drive the cleaning member to move back and forth relative to the floor brush.

[0007] Preferably, a scraping assembly is further provided above the sewage suction port, and the cleaning member has a first position close to the sewage suction port and a second position away from the sewage suction port. When the cleaning member is in the first position, there is a gap between the cleaning member and the scraping assembly. When the cleaning member is in the second position, the cleaning member conflicts with the scraping assembly. 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.

[0008] Preferably, the cleaning device further comprises two locking mechanisms for locking the cleaning member at the first position or the second position, so that the cleaning member can rotate when driven by the driving motor.

[0009] Preferably, 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 motor drives the movable part to move forward and backward by cooperating with the transmission hole.

[0010] 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 locked in the first position and the power element stops working; when the cam rotates until the other locking surface contacts the stop portion, the cleaning element is locked in the second position and the power element stops working.

[0011] Preferably, the movable part is provided with a horizontal platform portion, the transmission hole is provided on the platform portion, the rotating shaft of the motor is vertically provided above the platform portion, the cam is axially and vertically inserted into the transmission hole, and the projection of the stop portion on the plane where the transmission hole is located is at least partially located in the transmission hole, so that the cam rotates to the stop portion in the transmission hole and the power part stops working.

[0012] 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.

[0013] 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.

[0014] After adopting the above technical solution, the utility model has the following advantages:

[0015] 1. The utility model provides two power members and two movable members driven by the two power members in the floor brush, the two movable members are respectively arranged near the left and right ends of the floor brush and are respectively connected to the left and right ends of the cleaning member, the two power members are located on the inner sides of the two movable members, and the two power members rotate in different directions, so that the two ends of the cleaning member are driven by the two movable members to move synchronously, thereby adjusting the distance between the cleaning member and the sewage suction port. The two power members and the movable members are placed in this way, so that the two ends of the cleaning member can be better connected to the two movable members vertically, and the different directions of the power members can better ensure that the two ends of the cleaning member can move synchronously under the drive of the two power members, thereby ensuring that the distance between the cleaning member and the driving motor and the sewage suction port is consistent, thereby preventing the driving motor from jamming when the cleaning member rotates, thereby ensuring the normal operation of the cleaning member. The two movable parts are independently driven by two motors, and there is no need to set a transmission structure between the two movable parts. The structure for driving the movable parts to move can be reasonably simplified to avoid interference with other structures in the floor brush. At the same time, the space occupied by the power parts and the movable parts in the floor brush is smaller, ensuring that the volume of the floor brush, especially the height, will not be too high, thereby ensuring the cleaning of low spaces. Such a technical solution adjusts the distance between the cleaning part and the sewage suction port through the power parts and the movable parts, changes the space between the cleaning part and the sewage suction port, so that the dirt is loosened or detached when the distance between the cleaning part and the sewage suction port is adjusted. At the same time, after the dirt is loosened or detached, the cleaning part is rotated at two different positions, which solves the problem of dirt being stuck in the roller brush cavity between the cleaning part and the sewage suction port, so that the loosened or detached dirt can be better sucked into the sewage suction port and collected.

[0016] 2. In the present invention, one end of the cleaning member is supported by a side panel, which is provided with a docking portion. A movable member corresponding to the side panel is provided inside the floor brush. The docking portion is detachably connected to the movable member, and the other end of the cleaning member is connected to the movable member via a connector or a frame. This not only facilitates the removal, replacement, or cleaning of the cleaning member, but also facilitates the movement of the two movable members by two motors with different rotational directions. Since the two movable members can drive the two ends of the cleaning member to move forward and backward synchronously via the side panel and the connector or the frame, the synchronous movement of the two ends of the cleaning member is more effective, thereby better adjusting the front and rear position of the cleaning member relative to the suction port. When dirt is stuck between the cleaning member and the floor brush, the movable member can drive the two ends of the cleaning member to move forward away from the suction port through the side panels and the connecting member or the frame, so that the cleaning member releases the stuck dirt and allows the dirt to be sucked away through the suction port along with the suction airflow, thereby preventing the stuck dirt from accumulating and causing the driving load of the driving motor to drive the cleaning member to increase. At the same time, the two ends of the cleaning member can move back and forth synchronously, thereby improving the overall movement consistency of the cleaning member and preventing the driving motor from being blocked or stuck due to inconsistent movement of the two ends of the cleaning member, thereby ensuring the performance stability of the driving motor. It can also prevent the situation where dirt cannot be sucked away in time and becomes entangled in the cleaning member, thereby reducing the cleaning ability of the cleaning member, and in particular, it can prevent the stuck hair from being entangled in the cleaning member, thereby ensuring the cleaning ability of the cleaning member, and further 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 two ends of the cleaning member to move backward synchronously through the side panels and connecting members or the frame panels to reset. The cleaning member moving backward is close to the sewage suction port, thereby ensuring the strength of the sewage suction airflow.

[0017] 3. Since a scraping member is provided above the sewage suction port, the cleaning member has a first position close to the sewage suction port and a second position away from the sewage suction port. When the cleaning member is in the first position, there is a gap between the cleaning member and the scraping assembly, and when the cleaning member is in the second position, the cleaning member conflicts with the scraping assembly. 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; the two motors drive the two movable members to move, so that the two movable members drive the cleaning member to move through the side plates and the connecting members or the frame plates. When the cleaning member is in the first position conflicting with the scraping member, the scraping member can scrape and squeeze the cleaning member, and the dirt scraped and squeezed out can be sucked away through the sewage suction port, thereby ensuring the cleaning ability of the cleaning member. When two motors drive two movable parts to move, and the movable parts drive the cleaning parts to move through the side panels and the connecting parts or the frame panels so that the cleaning parts are in the second position with a gap between them and the scraping parts, there is a certain gap between the cleaning parts and the scraping parts, and the dirt stuck between the cleaning parts and the scraping parts can be sucked away through the suction port. In addition, dirt such as hair and particulate matter trapped on the scraping parts can also be sucked away through the suction port. At the same time, when the cleaning parts switch between the first position and the second position, the dirt between the cleaning parts and the suction port will also be driven to move with the movement of the cleaning parts, causing them to loosen or detach, facilitating the next step of suction. Two motors and two transmission structures are provided in the floor brush. The two motors drive the movable parts to move back and forth respectively through the two transmission structures. The movable parts that move back and forth drive the cleaning parts to move back and forth through the side panels and the frame panels. Reasonable setting of the movement mode of the movable parts facilitates the reasonable simplification of the connection structure between the movable parts and the side panels, connecting parts or the frame panels.

[0018] 4. By setting two locking mechanisms to lock the cleaning member in the first position or the second position, the cleaning member can be stabilized in the first position or the second position, so that the cleaning member can rotate more stably under the drive motor, and the sudden jump problem that causes the failure of the drive motor will not occur, thereby ensuring the stability of the operation of the drive motor and improving the service life of the drive motor.

[0019] 5. The motor, as the power component, has a rotating shaft. A cam is mounted on the rotating shaft, and a transmission hole is provided on the movable part. The cam is inserted into the transmission hole. When the motor is operating, the rotating shaft drives the cam to rotate. The rotating cam cooperates with the transmission hole to drive the movable part forward or backward. The specific structure of the transmission structure is reasonably designed to keep the transmission structure compact, meet the driving requirements of the power component on the movable part, and avoid installation interference with other components in the floor brush.

[0020] 6. 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 in 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 and lock at this position. The motor is in a stalled state, so that the cleaning part can rotate under the drive motor to perform cleaning work or self-cleaning work. 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 and lock at this position. The motor is in a stalled state, so that the cleaning part can rotate under the drive motor to perform cleaning work or self-cleaning work. Through the contact between the locking surface and the stop portion, the cam and the movable part can be stably in a certain state, so that the cleaning part can be stably in the first position or the second position and locked in these two positions, so that the cleaning part can rotate stably under the drive motor, ensuring the working stability of the drive motor and thus ensuring the cleaning effect. At this time, the two motors are stopped to avoid being in a blocked state for a long time and burning out.

[0021] 7. The movable part is provided with a platform part, the transmission hole is provided on the platform part, the motor is provided with an axially vertical position above the platform part, 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 part is used to provide the required installation space for the motor and the cam, so that the motor, cam and movable part maintain a compact structure and avoid installation interference with other components in the floor brush. 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 in driving the cleaning part to move back and forth.

[0022] 8. 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 maintain the side panel relative to the corresponding movable member, thereby allowing the movable member to smoothly drive the cleaning member to move back and forth. When the lock buckle is disengaged 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.

[0023] 9. The docking portion is provided with an elastic member that biases the lock buckle in the direction of engagement with the lock slot, so that the lock buckle and the lock slot maintain a stable engagement state when the docking portion is connected to the movable member, thereby maintaining a stable connection between the side panel and the movable member, ensuring that the movable member can smoothly drive the cleaning member to move back and forth. The docking portion is provided with an operating member connected to the lock buckle, and the operating member is provided with a recess or protrusion. The user can apply force to the operating member through the recess or protrusion. The operating member with force can drive the lock buckle to move to release the lock between the lock buckle and the lock slot, thereby releasing the connection between the side panel and the movable member, so that the user can detach the cleaning member from the floor brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of the surface cleaning device according to Example 1;

[0025] Figure 2 for Figure 1 Top view of the floor brush without the cover installed;

[0026] Figure 3 This is a diagram of the entire surface cleaning device described in Example 2;

[0027] Figure 4 A cross-sectional view of the floor brush in the surface cleaning device according to the second embodiment when the cleaning member is in the first position;

[0028] Figure 5 A cross-sectional view of the floor brush of the surface cleaning device according to the second embodiment when the cleaning member is in the second position;

[0029] Figure 6 This is a partial structural diagram of the floor brush in the surface cleaning device described in Example 2;

[0030] Figure 7 This is an exploded view of a portion of the structure of the floor brush in the surface cleaning device according to the second embodiment;

[0031] Figure 8 A vertical cross-sectional view of a partial structure of a floor brush in the surface cleaning device according to the second embodiment;

[0032] Figure 9 A horizontal cross-sectional view of a partial structure of a floor brush in the surface cleaning device according to the second embodiment;

[0033] Figure 10 An exploded view of the lower housing and cam of the floor brush in the surface cleaning device according to the second embodiment;

[0034] Figure 11 An exploded view of the side panels and docking portion of the surface cleaning device according to the second embodiment;

[0035] Figure 12 This is a schematic structural diagram of the liquid supply assembly in the surface cleaning device according to the second embodiment;

[0036] Figure 13 An exploded view of the surface cleaning device according to the second embodiment showing the rotating cam and the transmission hole cooperating to drive the movable member to move from rear to front;

[0037] Figure 14 This is a structural diagram of the surface cleaning device described in Example 3 when it is a cleaning robot.

[0038] The components in the figure are numbered as follows: 100-floor brush, 101-lower shell, 110-sewage suction port, 120-scraping member, 130-connector, 140-main shell, 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, 180-floor scraper, 210-drive motor, 220-cleaning member, 230-side plate, 240-docking portion, 241-lock, 242-elastic member, 243-operating member, 244-concave position, 250-hinge seat, 260-transmission head, 270-connecting member, 300-body, 310-handle, 400-liquid supply component, 410-clean water tank, 420-water pump , 430-water distribution part, 431-water outlet, 440-heating part, 500-sewage suction component, 510-sewage bucket, 520-fan, 530-sewage suction channel, 610-movable part, 611-platform part, 612-slider, 613-guide groove, 614-lock groove, 620-power part, 621-motor, 6211-rotating shaft, 630-transmission structure, 631-cam, 6311-main body, 6312-protrusion, 6313-first locking surface, 6314-second locking surface, 632-transmission hole, 6321-idle stroke section, 6322-push-pull section, 6323-transition section, 640-bracket, 650-guide rod, 700-control module, 810-dust cup, 820-power source component, 830-connecting rod. DETAILED DESCRIPTION

[0039] 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.

[0040] As the surface cleaning device described in the utility model, Figures 1 to 14As shown, it includes a floor brush 100 with a cleaning member 220 and a driving motor 210 for driving the cleaning member 220 to rotate. The front end of the floor brush 100 is provided with a sewage suction port 110, and the cleaning member 220 is located in front of the sewage suction port 110. The floor brush 100 is also provided with two power members 620 and two movable members 610 driven by the two power members 620 respectively. The two movable members 610 are respectively arranged near the left and right ends of the floor brush and are respectively connected to the left and right ends of the cleaning member 220. The two power members 620 are located on the inner sides of the two movable members 610, and the two power members 620 have different operating directions, so that the two ends of the cleaning member 220 are driven to move synchronously by the two movable members 610, thereby adjusting the distance between the cleaning member 220 and the sewage suction port 110. By placing the two power members 620 and the movable member 610 in this way, the two ends of the cleaning member 220 can be better connected to the two movable members 610 vertically. By the different running directions of the two power members 620, the two ends of the cleaning member 220 can be driven by the two movable members 620 to move synchronously, thereby ensuring that the distance between the cleaning member 220 and the drive motor 210 and the sewage suction port 110 is consistent, thereby preventing the driving motor 210 from causing the cleaning member 220 to rotate when it is stuck, thereby ensuring the wiping effect of the cleaning member 220 during normal rotation; since the two movable members 610 are independently driven by the two power members 620, there is no need to set a transmission between the two movable members 610 The dynamic structure can reasonably simplify the structure for driving the movable part 610 to move, avoid interference with other structures in the floor brush 100, and at the same time make the space occupied by the power part and the movable part in the floor brush smaller, ensuring that the height of the floor brush will not be too high, thereby ensuring that the floor brush can enter the low space for cleaning; and the distance between the cleaning part and the sewage suction port is adjusted by the power part and the movable part, so that the dirt is loosened or detached when the distance between the cleaning part and the sewage suction port is adjusted, and after the dirt is loosened or detached, the cleaning part is rotated in two different positions, which solves the problem of dirt being stuck in the roller brush cavity between the cleaning part and the sewage suction port, so that the loosened or detached dirt can be better sucked into the sewage suction port and collected.

[0041] Example 1

[0042] As a surface cleaning device described in the present invention, it can be a vacuum cleaner, which can be a handheld vacuum cleaner or a self-propelled vacuum cleaner. In this embodiment, it is a handheld vacuum cleaner, such as Figure 1 and Figure 2As shown, it includes a connecting rod 830 and a floor brush 100, a dust cup 810 and a power source assembly 820 hinged thereto. The power source assembly 820 is provided with a fan for providing negative pressure suction. The floor brush 100 includes a lower shell 101 and an upper shell (not shown in the figure). The upper shell is buckled on the lower shell 101 to form a accommodating cavity. The dust cup 810 is detachably connected to the power source assembly 820. The connecting rod is a hollow structure with a dust inlet pipe provided therein. The upper end of the connecting rod 830 is provided with a dust cup 810 connected to the dust inlet pipe. The power source assembly 820 is installed at the upper port of the dust cup 810, the floor brush 100 is connected to the dust cup 810 through the dust inlet pipe 830, and the sewage suction port on the floor brush 100 is connected to the dust cup 810 through the dust inlet pipe 830. The driving motor for driving the cleaning member 220 is arranged in the lower shell 101 of the floor brush 100, and the cleaning member 220 is detachably mounted on the front end of the floor brush 100. Two movable members 620 and two power members 610 for driving the two movable members 620 are arranged in the lower shell 101 of the floor brush 100. In this embodiment, the power member 610 0 is a motor, and two movable parts 620 are respectively located at one end of the two motor cleaning parts 220. A side plate 230 is set, and a docking portion 240 is provided on the side plate 230 to cooperate with one of the movable parts 620. The docking portion 240 is detachably connected to the movable part 620. A connecting part 270 is provided on the other movable part 620. The other end of the cleaning part 220 is sleeved on the connecting part 270 and can rotate relatively on the connecting part 270. The two motors 621 rotate in different directions to drive the two movable parts 6 The floor brush 100 is provided with a side plate 230 opposite to the side plates on the left and right sides. The other movable member 620 is fixed to the inner end of the other side plate 230. The connecting member 270 is provided at the outer end of the other side plate. The outer end of the other side plate extends from the front end of the floor brush to facilitate the installation of the cleaning member on the floor brush. The two movable members, driven by two motors, respectively, drive the cleaning member 220 to move back and forth through the two side plates. In this solution, the cleaning member is a roller with hard bristles attached to the outside. Comb teeth for combing the hard bristles on the cleaning member 220 can be provided above the suction port of the floor brush 100.

[0043] In addition, the present solution may also cancel the setting of the other side panel, or may set a frame plate on another movable part, set a connecting part on the frame plate, and the other end of the cleaning part is placed on the connecting part and can rotate on the connecting part, and the two movable parts driven by two motors respectively can drive the cleaning part 220 to move back and forth through the side panel and the frame plate; the connecting rod 830 in the present solution may adopt a one-stage structure or a two-stage hinged structure; when the connecting rod 830 adopts a two-stage hinged structure, the suction source assembly 820, the dust cup 830 and the upper section of the connecting rod 830 can be rotated downward relative to the lower section of the connecting rod 830, and a hanging buckle structure is set at the hinge of the upper section and the lower section, so that the vacuum cleaner as a whole can be hung on the wall through the hanging buckle structure to make it independently placed.

[0044] Example 2

[0045] The surface cleaning device provided in the second embodiment of the present invention is a floor scrubber. Figures 3 to 13 The floor scrubber includes a floor brush 100, which is provided with a sewage suction port 110 and a cleaning member 220 driven by a drive motor 210. The sewage suction port 110 is located behind the cleaning member 220. A side panel 230 is provided at one end of the cleaning member 220 and supported by the side panel 230. A movable member 610 is provided on a side of the floor brush 100 corresponding to the side panel 230. The side panel 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 panel 230 to adjust the front-to-back position of the cleaning member 220 relative to the sewage suction port 110.

[0046] 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 drive motor 210, thereby ensuring the performance stability of the drive 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.

[0047] Combine Figure 3 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 4 、 Figure 5 、 Figure 6 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.

[0048] 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 drive 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 drive 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 drive 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. The driving motor 210, via 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 drive 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 drive 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 drive 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 drive motor 210 for driving the cleaning member 220 may be disposed inside one of the roller brushes.

[0049] The surface cleaning device of this embodiment further includes a liquid supply component 400, Figure 12The 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 onto the cleaning element 220 through the water outlet holes 431, 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.

[0050] 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.

[0051] 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.

[0052] 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 motor 210 due to inconsistent movement of the two ends.

[0053] Combine Figure 7 、 Figure 8 In this embodiment, the two movable members 610 are preferably driven independently. This eliminates the need for a transmission structure 630 between the two movable members 610. This simplifies the structure for driving the movable members 610 and prevents 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, which 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.

[0054] Combine Figure 4 、 Figure 5In 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 4 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 5 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.

[0055] 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 9 Specifically, the power member 620 is a motor 621 having 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 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 movable members 610, moving synchronously back and forth, drive the cleaning member 220 to move back and forth through the side plate 230 and the frame plate 170, respectively.

[0056] 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 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 13The 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 10 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.

[0057] Combine Figure 13 The hole wall of the transmission hole 632 is provided with three sections in sequence along the circumferential direction, namely the idle stroke section 6321, the push-pull section 6322 and the transition section 6323. Figure 13Points A and B in the figure are the two endpoints of the idle stroke segment 6321. The idle stroke segment 6321 has a uniform radius and its center substantially coincides with the center of the main body 6311 indicated by point E. Points B and C are the two endpoints of the push-pull segment 6322. The distance between the push-pull segment 6322 and point E gradually decreases from point B to point C. Points C and A are the two endpoints of the transition segment 6323. The distance between the transition segment 6323 and point E gradually increases from point C to point A. When the motor 621 drives the cam 631 to rotate in the direction indicated by -ω to move the cleaning member 220 from the first position to the second position, the protrusion 6312 of the cam 631 first engages with the idle stroke segment 6321. At this time, the movable member 610 does not move, so the cleaning member 220 remains in the first position during the initial stage of adjustment. 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 is used to rotate the cam 631 to a suitable angle before it can engage the push-pull section 6322 to drive the movable member 610 forward. This reduces the driving load of the motor 621 in the initial operating state and facilitates smooth startup of the motor 621.

[0058] 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.

[0059] 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 145 to limit the cam 631 to a certain extent.

[0060] 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.

[0061] 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 11In 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.

[0062] 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 structure.

[0063] The surface cleaning device is further provided with a control module 700 , to which electrical components such as the fan 520 , the drive motor 210 , the motor 621 , the water pump 420 , and buttons on the body 300 are all electrically and / or signal-connected.

[0064] When the surface cleaning device is working normally, the cleaning member 220 is in the first position, the driving motor 210 drives the cleaning member 220 to rotate, the liquid supply component 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.

[0065] 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 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 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.

[0066] In this embodiment, the two movable members 610, the two transmission holes 632, and the two cams 631 are all arranged symmetrically. The two 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 motors 621 drive the cleaning member 220 to rotate in the same direction when moving forward or backward.

[0067] 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.

[0068] As an alternative to this embodiment, the movable member 610, motor 621 and cam 631 corresponding to the frame plate 170 may be eliminated, and only the movable member 610, motor 621 and cam 631 corresponding to the side plate 230 may be used to drive the cleaning member 220 to move back and forth.

[0069] 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 .

[0070] 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 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.

[0071] 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 motor 621, and the movable part 610 is connected to the screw. The 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.

[0072] Example 3

[0073] The surface cleaning device described in the present invention can also be a self-propelled cleaning robot. Figure 14 The cleaning robot includes 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 to move back and forth to adjust the front-to-back position of the cleaning member 220 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 the frame. Of course, the cleaning robot can also omit the frame, 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, the cleaning robot is also provided with a scraping member for scraping the cleaning member 220. The scraping member can be a single scraper bar structure, a single comb tooth structure, or a combination of a scraper 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.

[0074] 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 good cleaning effect, comprising a floor brush with a cleaning member and a drive motor for driving the cleaning member to rotate, wherein the front end of the floor brush is provided with a sewage suction port, and the cleaning member is located in front of the sewage suction port, characterized in that: The floor brush is further provided with two power parts and two movable parts driven by the two power parts respectively. The two movable parts are respectively arranged close to the left and right ends of the floor brush and are respectively connected to the left and right ends of the cleaning part. The two power parts are located on the inner sides of the two movable parts, and the two power parts have different operating directions, so that the two ends of the cleaning part are driven to move synchronously by the two movable parts, thereby adjusting the distance between the cleaning part and the sewage suction port.

2. A surface cleaning device according to claim 1, characterized in that: The two power parts are two independently arranged motors, and the directions of the two motors are opposite. A side plate is provided at one end of the cleaning part, and a docking part is provided on the side plate to cooperate with one of the movable parts. The docking part is detachably connected to the movable part, and a connecting part is provided on the other movable part. The other end of the cleaning part is sleeved on the connecting part and rotates relatively on the connecting part. The two motors rotate to drive the two movable parts to move synchronously, so that the cleaning part driven by the two movable parts moves back and forth relative to the floor brush.

3. A surface cleaning device according to claim 1, characterized in that: The two power parts are two independently arranged motors, and the two motors rotate in opposite directions. A side plate is provided at one end of the cleaning part, and a docking part is provided on the side plate to cooperate with one of the movable parts. The docking part is detachably connected to the movable part. The floor brush is provided with a frame plate arranged opposite to the side plate. The other end of the cleaning part is supported by the frame plate, and the frame plate moves back and forth under the drive of another movable part. The frame plate and the side plate move synchronously under the drive of the two motors to drive the cleaning part to move back and forth relative to the floor brush.

4. A surface cleaning device according to claim 2 or 3, characterized in that: A scraping assembly is also provided above the sewage suction port, and the cleaning member has a first position close to the sewage suction port and a second position away from the sewage suction port. When the cleaning member is in the first position, there is a gap between the cleaning member and the scraping assembly. When the cleaning member is in the second position, the cleaning member conflicts with the scraping assembly. 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.

5. A surface cleaning device according to claim 4, characterized in that: The device also includes two locking mechanisms for locking the cleaning member at a first position or a second position, so that the cleaning member can rotate when driven by the driving motor.

6. A surface cleaning device according to claim 5, characterized in that: 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 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 protruding portion protruding outward relative to the main body, locking surfaces are provided on opposite sides of the protruding portion, 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 locked in the first position and the power element stops working; when the cam rotates until the other locking surface contacts the stop portion, the cleaning element is locked in the second position and the power element stops working.

8. A surface cleaning device according to claim 7, characterized in that: The movable part is provided with a horizontal platform portion, the transmission hole is provided on the platform portion, the rotating shaft of the motor is vertically provided above the platform portion, the cam is axially and vertically inserted into the transmission hole, and the projection of the stop portion on the plane where the transmission hole is located is at least partially located in the transmission hole, so that the cam rotates to the stop portion in the transmission hole and the power part stops working.

9. A surface cleaning device according to claim 2 or 3, 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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