A surface cleaning apparatus having a movable heating element

Abstract

The utility model discloses a surface cleaning device with movable heating part belongs to cleaning equipment technical field, including ground brush, ground brush is equipped with cleaning part, water distribution part, heating assembly with heating part, swing part and trigger part, heating part is at least partially arranged in the top of cleaning part and extends along the axial direction parallel to cleaning part, trigger part extends along the axial direction of water distribution part and at least partially and water distribution part slide fit, swing part is pivotably arranged on ground brush, one end of swing part is mounting portion, and the other end is transmission part, trigger part is separated from transmission part to make heating part be in the first position with cleaning part contact, trigger part cooperates with transmission part to make heating part be in the second position with cleaning part separation. Heating part is set apart from waterway, and the path length of cleaning part from heating position motion to the ground contact position is greatly shortened, improves the actual temperature of the cleaning part of liquid absorption wetting when with ground contact, thereby improves the cleaning effect of cleaning part to ground.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a surface cleaning device with a movable heating element. Background Technology

[0002] Existing surface cleaning machines typically feature a hot water mode to enhance their cleaning ability. Some machines incorporate heating elements in the water path to heat the liquid flowing towards the cleaning nozzle, thus increasing its cleaning power against stubborn or oily stains. However, because the heating element is located in the water path, the liquid travels a considerable distance from the heating element to the spray point, and the cleaning nozzle also travels a considerable distance from the spray point to contact with the ground. The heated liquid experiences a significant temperature drop during its flow and the movement of the cleaning nozzle. Consequently, the actual temperature of the nozzle upon contact with the ground is not high, significantly reducing its cleaning effectiveness against stubborn and oily stains. This compromises the cleaning effect and ultimately negatively impacts the user experience. The existing technology CN202220029053.6 reduces heat loss during the liquid supply process by having the heating element directly heat the cleaning element. However, the fact that the heating element is always in contact with the cleaning element hinders the rotation of the cleaning element during the floor cleaning process and the cleaning of the cleaning element and the brush chamber in the self-cleaning mode. Utility Model Content

[0003] To address the shortcomings and deficiencies of the existing technology, this utility model provides a surface cleaning device with a heating element. Under the action of a trigger, the heating element of the surface cleaning device selectively contacts or separates from the cleaning element, thus solving the technical problems of the heating element always being in contact with the cleaning element, hindering the rotation of the cleaning element in non-hot water washing mode, and the heating element always pressing against the cleaning element during self-cleaning, resulting in cleaning dead corners and some dirt remaining between the cleaning element and the heating element.

[0004] To achieve the above-mentioned technical objectives, this utility model provides a surface cleaning device with a movable heating element, including a floor brush. The floor brush is provided with a cleaning element and a water distribution element for supplying liquid to the cleaning element. The floor brush also includes a heating assembly with a heating element, a swinging element, and a triggering element. The heating element is at least partially disposed above the cleaning element and extends along an axial direction parallel to the cleaning element. The triggering element extends along the axial direction of the water distribution element and at least partially slides with the water distribution element. The swinging element is pivotally disposed on the floor brush. One end of the swinging element is a mounting part for mounting the heating element, and the other end is a transmission part that selectively cooperates with the triggering element. The triggering element is separated from the transmission part so that the heating element is in a first position in contact with the cleaning element. The triggering element cooperates with the transmission part so that the heating element is in a second position separated from the cleaning element.

[0005] Preferably, the floor brush is further provided with a rotatable scraping component and a driving component for driving the trigger component to rotate. The trigger component extends to cooperate with the scraping component, and the driving component drives the trigger component to rotate while simultaneously driving the scraping component to rotate.

[0006] Preferably, the driving member drives the trigger member to rotate in a first direction so that both the scraping member and the heating member come into contact with the cleaning member; the driving member drives the trigger member to rotate in a second direction so that both the scraping member and the heating member separate from the cleaning member.

[0007] Preferably, the floor brush is further provided with a driving component for rotating the trigger component. The driving component includes a switching motor, a worm gear sleeved on the motor shaft of the switching motor, and a worm wheel provided on the trigger component. The worm wheel meshes with the worm gear. The trigger component cooperates with or separates from the transmission part of the swing component under the driving action of the driving component.

[0008] Preferably, the floor brush has a first cavity for mounting a swinging component, the swinging component has a rotating shaft and is pivotally mounted in the first cavity, the heating component is mounted on the mounting part of the swinging component by a bracket, and the heating surface of the heating component is exposed downward in the first cavity and is at least partially located above the cleaning component.

[0009] Preferably, the heating element is fixedly connected to the mounting part of the swinging element via a bracket, and the heating element moves closer to or further away from the cleaning element as the swinging element pivots.

[0010] Preferably, the bracket and the mounting part of the swinging member are connected by a connecting and fitting structure. The connecting and fitting structure has a fitting gap that allows the heating element driven by the swinging member to move only longitudinally. The heating element moves up and down as the swinging member pivots to move closer to or away from the cleaning element.

[0011] Preferably, the floor brush is provided with an elastic element that biases the heating element toward the cleaning element. One end of the elastic element is positioned and the other end abuts against the heating component and / or the swinging element. The elastic element deforms under force when the heating element moves away from the cleaning element.

[0012] Preferably, the heating assembly further includes a fixed portion and a flexible portion that circumferentially surrounds the heating element, the flexible portion allowing the heating element to move relative to the fixed portion.

[0013] Preferably, the cleaning component is a tracked cleaning component, which includes a first support component near the water distribution component and a second support component away from the water distribution component. When the heating component is in the first position, it is concentrically arranged with the first support component.

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

[0015] 1. The surface cleaning device provided by this utility model includes a floor brush equipped with a heating component, a oscillating component, and a triggering component. The oscillating component is pivotally mounted on the floor brush. The heating element of the heating component is located at the mounting part of the oscillating component. The transmission part of the oscillating component selectively engages with the triggering component. When the triggering component and the transmission part of the oscillating component are separated, the heating element is in a first position in contact with the cleaning component. At this time, the heating element can heat the cleaning component that has absorbed liquid and become wetted. When the triggering component and the transmission part of the oscillating component are engaged, the heating element is in a second position separated from the cleaning component. At this time, the heating element releases the cleaning component, facilitating the removal of dirt stuck between the heating element and the cleaning component.

[0016] In this application, the heating component with a heating element is separated from the water circuit and the heating element can directly contact the cleaning component. This can greatly shorten the path length of the liquid-absorbing and wetting cleaning component from the heating position to the position of contact with the ground, thereby increasing the actual temperature of the liquid-absorbing and wetting cleaning component when in contact with the ground. This, in turn, improves the cleaning component's ability to clean stubborn dirt and oily dirt on the ground, helps to improve the cleaning effect of the cleaning component on the ground, and is beneficial to improving the user experience.

[0017] In addition, since the heating component is separated from the water circuit, the liquid is at room temperature both upstream and downstream of the water circuit. The liquid does not precipitate scale when flowing through the water circuit, which can avoid the situation where scale clogs the water circuit or the water distribution component. This ensures the stability of the liquid supply from the water distribution component to the cleaning component, thereby ensuring the uniformity of liquid absorption and wetting of the water distribution component. This, in turn, improves the temperature uniformity of the cleaning component after being heated by the heating component when it comes into contact with the ground, which is conducive to further improving the cleaning effect of the cleaning component on the ground.

[0018] Furthermore, since the heating element can switch between the first and second positions, heating of the cleaning element can be set to default activation or manually activated by the user based on the cleaning progress. During floor cleaning, when heating of the cleaning element is required, the heating element switches from the second position to the first position. When heating of the cleaning element is not required, the heating element remains in the second position, thus reducing the rotational resistance of the cleaning element. During floor cleaning or self-cleaning processes, if dirt becomes stuck between the heating element and the cleaning element, the heating element can switch to the second position and release the stuck dirt, allowing it to be sucked away. This prevents the dirt from accumulating and reducing the heating effect on the cleaning element, further ensuring the cleaning capability of the cleaning element.

[0019] Finally, to ensure uniform heating of the cleaning components, the heating element is typically positioned above the cleaning components and extends axially parallel to them. This ensures that the cleaning components are uniformly heated axially when the heating element is in the first position. To improve the stability of the trigger's operation, and to ensure a large contact area between the heating element and the cleaning components in the first position, the trigger extends axially along the water distribution component and slides into it. The water distribution component, located on the floor brush, supplies liquid to the cleaning components. Therefore, its position determines the distribution of cleaning liquid on the cleaning components. Extending the trigger along the water distribution component ensures uniform axial force on the trigger, better driving the heating element that extends axially along the cleaning components. This results in roughly the same axial contact between the cleaning components and the heating element. On one hand, this ensures more uniform axial heating of the cleaning components when the heating element is in the first position; on the other hand, the fixedly installed water distribution component provides support for the rotation of the trigger, stabilizing the fit between the trigger and the heating element.

[0020] 2. The floor brush is equipped with a rotatable scraper. A trigger extends to cooperate with the scraper. When the drive causes the trigger to rotate and the position of the heating element is switched by the swinging component, the rotating trigger causes the scraper to rotate synchronously. Furthermore, when the drive causes the trigger to rotate in the first direction, the trigger, on the one hand, drives the heating element to move to the first position where it contacts the cleaning element via the swinging component, and on the other hand, the trigger simultaneously causes the scraper to rotate to the scraping position where it contacts the cleaning element. When the cleaning element is working, it rotates forward. The scraper first scrapes the cleaning element, then the water distributor supplies liquid to the cleaning element to wet it, and finally the heating element heats the wetted cleaning element. The scraper, water distributor, and heating element are distributed sequentially along the working rotation direction of the cleaning element, thus ensuring the cleaning ability of the cleaning element. When the driving component drives the trigger component to rotate in the second direction, the trigger component, through the swinging component, drives the heating component to move to the second position separated from the cleaning component. Simultaneously, the trigger component drives the scraper component to rotate to the released position separated from the cleaning component. At this point, there are gaps of a certain width between the heating component and the cleaning component, and between the scraper component and the cleaning component. Dirt stuck between the heating component and the cleaning component, and between the scraper component and the cleaning component, can be sucked away. A well-designed mating structure between the scraper component and the trigger component allows the driving component to synchronously drive the heating component and the scraper component, thus maintaining their coordinated positions. This enables the heating component and the scraper component to synchronously contact and separate from the cleaning component, improving cleaning capability during hot water cleaning and ensuring thorough cleaning of the cleaning component's receiving cavity, the cleaning component, and the heating component during self-cleaning.

[0021] 3. A drive unit is installed on the floor brush, comprising a switching motor, a worm gear, and a worm wheel. The worm gear is sleeved on the motor shaft of the switching motor, and the worm wheel is mounted on the trigger element. The switching motor drives the trigger element to reciprocate through the meshing worm gear and worm wheel. The rotating trigger element can disengage from or engage with the transmission part of the oscillating element. Since the travel distance of the heating element switching between two positions does not need to be large, the pivot amplitude of the oscillating element also does not need to be large, and therefore the reciprocating rotation amplitude of the trigger element also does not need to be large. A reasonable design of the drive structure for driving the oscillating element is sufficient to meet the requirements of the oscillating element's reciprocating rotation within a small angle range. This avoids interference with other components within the floor brush without increasing its volume, keeping the overall structure of the floor brush compact. Furthermore, since the reduction ratio between the worm gear and worm wheel can be set relatively large, there is no need for an additional reduction structure. The specific structure of the drive unit is more suitable for installation space-constrained scenarios and also helps reduce production costs. Furthermore, since the meshing of the worm and worm wheel can have a certain self-locking performance, the self-locking force between the worm and worm wheel can keep the triggering element in a stable state, thereby keeping the oscillating element in a stable corresponding state, and thus keeping the heating element in a stable position. This also prevents the heating element from transmitting the load force in the reverse direction to the motor shaft of the switching motor, which is beneficial to improving the stability of the structure.

[0022] 4. The floor brush has a first cavity. The oscillating component is pivotally mounted in the first cavity via a pivot. The heating component is mounted on the mounting part of the oscillating component via a bracket. The heating surface of the heating component is exposed downwards in the first cavity and is at least partially located above the cleaning component. The reasonable design of the mounting structure of the oscillating component and the arrangement of the heating component ensures that the oscillating component is housed inside the floor brush. On the one hand, this avoids interference between the oscillating component and the movement of the cleaning component, while allowing the oscillating component to smoothly move the heating component toward or away from the cleaning component, so that the heating surface of the heating component can contact or detach from the cleaning component, ensuring the heating effect of the heating component on the cleaning component. On the other hand, by rotating the oscillating component to the first cavity, the two ends of the oscillating component can respectively engage with the heating component and the triggering component.

[0023] 5. The heating element can be fixedly connected to the mounting part of the swinging element via a bracket. In this case, the reciprocating pivoting swinging element drives the heating element to swing upward away from the cleaning element or downward towards the cleaning element via the bracket. A reasonable arrangement of the cooperation between the heating element and the swinging element ensures that the swinging element, in cooperation with the trigger element, can smoothly move the cleaning element from the first position to the second position, and from the second position to the first position.

[0024] 6. The mounting part of the bracket and the swinging component can also be connected by a connecting and fitting structure. In this case, the connecting and fitting structure has a fitting clearance that allows the heating element driven by the swinging component to move only longitudinally. That is, the mounting part undergoes both longitudinal and lateral displacements during the rotation of the swinging component. Due to the fitting clearance in the lateral direction, the lateral displacement of the heating element caused by the mounting part is within the allowable range of the fitting clearance, and the heating element does not undergo lateral displacement. When the reciprocating pivoting swinging component moves the heating element through the bracket, the heating element only moves in the vertical direction. The heating element moving upward moves away from the cleaning component, and the heating element moving downward moves closer to the cleaning component. By reasonably setting the fitting method between the bracket and the mounting part, the heating element only undergoes linear vertical movement when the swinging component pivots. This minimizes the influence of external factors on the heating element during its movement from the second position to the first position. In other words, it ensures that the heating element always remains concentric with the cleaning component. After moving from the second position to the first position, the heating element in the first position can fit well with the cleaning component, which helps reduce the difficulty of fitting when the heating element contacts the cleaning component and improves the contact effect between the heating element and the cleaning component.

[0025] 7. The floor brush is equipped with an elastic element. One end of the elastic element is positioned, and the other end abuts against the heating element and / or the oscillating element. The elastic element can press the heating element against the cleaning element, that is, it can apply a pre-tightening force to the cleaning element. On the one hand, this pre-tightening force increases the contact force between the heating element and the cleaning element when the heating element is in the first position; on the other hand, as the cleaning element is used, some of the fibers on the cleaning element may flatten or fall off, causing the outer diameter of the cleaning element to decrease slightly. The presence of the elastic element allows for fine adjustment of the position of the heating element based on the heating element being in the first position, so that the heating element maintains contact with the cleaning element when it is in the first position. This ensures and improves the heating effect of the heating element on the cleaning element, avoiding the situation where the heating element's contact force against the cleaning element is insufficient, resulting in an unsatisfactory heating effect. At the same time, when the cleaning element malfunctions, the heating element can overcome the pressure of the elastic element and float upward relative to the cleaning element, preventing the heating element from getting stuck due to excessive tight contact with the cleaning element.

[0026] 8. The heating assembly includes a fixed part and a flexible part. The flexible part circumferentially surrounds the heating element and can seal the gap between the fixed part and the heating element, preventing dirt from entering between them. Because the flexible part is deformable, it allows the heating element to move up and down relative to the fixed part, as well as back and forth, ensuring unobstructed switching between the first and second positions. When the heating element approaches the cleaning element, it can move back and forth to align with it. Furthermore, when larger dirt adhering to the cleaning element moves to a position corresponding to the heating element, the heating element can move to avoid the dirt, preventing them from jamming together. Alternatively, if a positional deviation occurs during the movement of the heating element driven by the swinging part, the heating element can be allowed to shift within a certain range, maximizing the contact area between them.

[0027] 9. The cleaning component is preferably a tracked cleaning component, which includes a first support and a second support. The first support is positioned closer to the water distribution component, and the second support is positioned further away from it. When the heating component is in the first position, it is preferably concentrically positioned with the first support, i.e., the heating component and the first support are centered. This improves the balance of forces between the first support and the heating component, preventing misalignment due to the centers of the heating component or the first support. This enhances the structural stability of the cleaning component and the heating component. Furthermore, since the heating component corresponds to the first support, the heating component in the first position can apply a downward force to the first support. This force increases the wiping force on the ground at the bottom of the first support, thereby improving the cleaning effect of the cleaning component. Attached Figure Description

[0028] Figure 1 This is an overall diagram of the surface cleaning device in Embodiment 1;

[0029] Figure 2 This is a structural diagram of the floor brush in Example 1;

[0030] Figure 3 This is a cross-sectional view of the middle part of the brush in the left-right direction in Example 1, in the front-back direction.

[0031] Figure 4 This is an exploded view of the ground brush section structure in Example 1;

[0032] Figure 5 This is a structural diagram of the upper shell in Embodiment 1;

[0033] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0034] Figure 7 This is a front-to-back sectional view of a partial structure of the ground brush in Example 1;

[0035] Figure 8 This is a structural diagram showing the assembly of the heating component, the oscillating component, the triggering component, and the driving component in Embodiment 1.

[0036] Figure 9 This is a partial structural diagram of the heating component, the oscillating component, and the triggering component in Embodiment 1;

[0037] Figure 10 This is an exploded view of the heating component in Example 1;

[0038] Figure 11 This is a front-to-back cross-sectional view of the floor brush body and cleaning component near the swinging component in Embodiment 1;

[0039] Figure 12 This is a partial sectional view of the front and rear directions at the junction of the heating component and the upper cover shell in Embodiment 1;

[0040] Figure 13 This is a front-to-back sectional view of the mounting part of the swinging component and the mating part of the heating component in Embodiment 1;

[0041] Figure 14 This is a cross-sectional view of the heating assembly in Embodiment 1 when the heating element is in the first position, along the direction perpendicular to the length.

[0042] Figure 15 This is a cross-sectional view of the heating assembly in Embodiment 1 when the heating element is in the second position, along the direction perpendicular to the length.

[0043] Figure 16 This is a partial structural diagram of the cleaning component when both the heating element and the scraping element are in contact with the cleaning element in Example 1;

[0044] Figure 17 This is a partial structural diagram of the heating element and the scraping element when they are both detached from the cleaning element in Example 1;

[0045] Figure 18 This is a structural diagram of the soft rubber part in Example 1 when both the heating element and the scraping element are in contact with the cleaning element;

[0046] Figure 19 This is a structural diagram of the soft rubber part in Example 1 when both the heating element and the scraping element are detached from the cleaning element.

[0047] In the diagram, 10 - surface cleaning device.

[0048] 100-Floor brush, 110-Floor brush body, 111-Upper housing, 1111-Protrusion, 1112-Tongue, 1113-Shaft hole, 1114-Limiting groove, 112-Lower housing, 1121-Passway, 113-Accommodation cavity, 114-Extension, 115-First cavity, 116-Second cavity, 1171-Motor cavity, 1172-Bearing bracket, 1173-Bearing chamber, 118-Suction port, 119-Floor scraper, 120-Cover, 130-Positioning plate, 140-Suction channel

[0049] 210 - Cleaning component, 211 - First support component, 212 - Second support component, 213 - Mop, 214 - Support frame, 215 - Elastic tensioning structure, 220 - Cleaning motor.

[0050] 300 - Water distribution component, 311 - Arc groove, 312 - Sealing strip.

[0051] 410-Heating assembly, 411-Heating element, 4111-Heating surface, 412-Fixing part, 413-Flexible part, 414-Frame, 4141-Inner frame, 4142-Outer frame, 4143-Flexible coated part, 4144-Crossbeam, 4145-Hanging screw, 4146-Limiting part, 415-Heat insulation part, 416-Bracket, 4161-Pin hole, 417-Pin rod, 420-Swinging part, 421-Mounting part, 4211-Mounting hole, 4212-Elongated hole, 422-Transmission part 423-Shaft, 430-Trigger element, 431-Lug, 440-Drive element, 441-Switching motor, 4411-Motor shaft, 442-Worm gear, 443-Limit bearing, 444-Worm wheel, 450-Scraper element, 451-Comb teeth, 452-Scraper strip, 460-Elastic element, 461-Spring, 470-Pressure plate, 471-Arc-shaped part, 480-Soft rubber part, 481-First part, 482-Second part, 483-Third part, 484-Upper connection, 485-Lower connection

[0052] 500 - Body, 510 - Handle, 520 - Hinge joint

[0053] 600 - Sewage suction assembly, 610 - Sewage tank, 620 - Blower

[0054] 700-Control Module. Detailed Implementation

[0055] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," and "bottom," etc., which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0056] This utility model provides a surface cleaning device with a movable heating element, including a floor brush. The floor brush is provided with a cleaning element and a water distribution element for supplying liquid to the cleaning element. The floor brush also includes a heating assembly with a heating element, a swinging element, and a triggering element. The heating element is at least partially disposed above the cleaning element and extends along an axial direction parallel to the cleaning element. The triggering element extends along the axial direction of the water distribution element and is at least partially slidably engaged with the water distribution element. The swinging element is pivotally disposed on the floor brush. One end of the swinging element is a mounting part for mounting the heating element, and the other end is a transmission part that selectively engages with the triggering element. The triggering element is separated from the transmission part so that the heating element is in a first position in contact with the cleaning element. The triggering element engages with the transmission part so that the heating element is in a second position separated from the cleaning element.

[0057] In this application, the heating component with a heating element is separated from the water circuit and the heating element can directly contact the cleaning component. This can greatly shorten the path length of the liquid-absorbing and wetting cleaning component from the heating position to the position of contact with the ground, thereby increasing the actual temperature of the liquid-absorbing and wetting cleaning component when in contact with the ground. This, in turn, improves the cleaning component's ability to clean stubborn dirt and oily dirt on the ground, helps to improve the cleaning effect of the cleaning component on the ground, and is beneficial to improving the user experience.

[0058] In addition, since the heating component is separated from the water circuit, the liquid is at room temperature both upstream and downstream of the water circuit. The liquid does not precipitate scale when flowing through the water circuit, which can avoid the situation where scale clogs the water circuit or the water distribution component. This ensures the stability of the liquid supply from the water distribution component to the cleaning component, thereby ensuring the uniformity of liquid absorption and wetting of the water distribution component. This, in turn, improves the temperature uniformity of the cleaning component after being heated by the heating component when it comes into contact with the ground, which is conducive to further improving the cleaning effect of the cleaning component on the ground.

[0059] Furthermore, since the heating element can switch between the first and second positions, heating of the cleaning element can be set to default activation or manually activated by the user based on the cleaning progress. During floor cleaning, when heating of the cleaning element is required, the heating element switches from the second position to the first position. When heating of the cleaning element is not required, the heating element remains in the second position, thus reducing the rotational resistance of the cleaning element. During floor cleaning or self-cleaning processes, if dirt becomes stuck between the heating element and the cleaning element, the heating element can switch to the second position and release the stuck dirt, allowing it to be sucked away. This prevents the dirt from accumulating and reducing the heating effect on the cleaning element, further ensuring the cleaning capability of the cleaning element.

[0060] Finally, to ensure uniform heating of the cleaning components, the heating element is typically positioned above the cleaning components and extends axially parallel to them. This ensures that the cleaning components are uniformly heated axially when the heating element is in the first position. To improve the stability of the trigger's operation, and to ensure a large contact area between the heating element and the cleaning components in the first position, the trigger extends axially along the water distribution component and slides into it. The water distribution component, located on the floor brush, supplies liquid to the cleaning components. Therefore, its position determines the distribution of cleaning liquid on the cleaning components. Extending the trigger along the water distribution component ensures uniform axial force on the trigger, better driving the heating element that extends axially along the cleaning components. This results in roughly the same axial contact between the cleaning components and the heating element. On one hand, this ensures more uniform axial heating of the cleaning components when the heating element is in the first position; on the other hand, the fixedly installed water distribution component provides support for the rotation of the trigger, stabilizing the fit between the trigger and the heating element.

[0061] The present invention will now be described in detail with reference to the embodiments and accompanying drawings. It should be noted that the surface cleaning device of the present invention can be a handheld cleaning machine with a handle and manually operated by the user, such as a handheld floor scrubber, handheld floor mop, or handheld vacuum cleaner; it can also be a cleaning robot with drive wheels, which can control the drive wheels to move according to a pre-written program and control the cleaning components to clean the floor. The following embodiments use a handheld surface cleaning device as an example to illustrate the implementation of this solution.

[0062] Example 1

[0063] Combination Figures 1 to 19This utility model provides a surface cleaning device 10, including a floor brush 100. The floor brush 100 is provided with a cleaning component 210 and a water distribution component 300 for supplying liquid to the cleaning component 210. The floor brush 100 also includes a heating assembly 410 with a heating component 411, a swing component 420, and a trigger component 430. The heating component 411 is at least partially disposed above the cleaning component 210 and extends along an axial direction parallel to the cleaning component 210. The trigger component 430 extends along the axial direction of the water distribution component 300 and is at least partially disposed above the cleaning component 210. The water distribution component 300 slides in conjunction with the water distribution component 300. The swing component 420 is pivotally mounted on the floor brush 100. One end of the swing component 420 is a mounting part 421 for mounting the heating component 411, and the other end is a transmission part 422 that selectively engages with the trigger component 430. The trigger component 430 separates from the transmission part 422 so that the heating component 411 is in a first position in contact with the cleaning component 210. The trigger component 430 engages with the transmission part 422 so that the heating component 411 is in a second position separated from the cleaning component 210.

[0064] Combination Figure 2 , Figure 3 In this embodiment, the floor brush 100 includes a floor brush body 110 and a cover 120. The cover 120 is detachably mounted on the top side of the front of the floor brush body 110, and the cleaning component 210 is detachably mounted on the front side of the floor brush body 110. When the cover 120 is mounted on the floor brush body 110 and the cleaning component 210 is mounted on the front side of the floor brush body 110, the cover 120 is located above the cleaning component 210 and at least partially covers the cleaning component 210. In a specific solution of this embodiment, the cover 120 can be detachably mounted on the floor brush body 110 through a detachable fitting structure such as a snap-fit ​​and slot-fit structure. The detachable fitting structure between the cover 120 and the floor brush body 110 can refer to the prior art, and will not be described in detail here.

[0065] The floor brush 100 is equipped with a cleaning motor 220 for driving the cleaning component 210. The cleaning motor 220 can be located inside the floor brush body 110 or on the front side of the floor brush body 110. When the cleaning motor 220 is located on the front side of the floor brush body 110, the cleaning component 210 mounted on the front side of the floor brush body 110 houses the cleaning motor 220. The detachable engagement structure between the cleaning component 210 and the floor brush body 110 can refer to the prior art, and the transmission structure between the cleaning component 210 and the cleaning motor 220 can also refer to the prior art, and will not be described in detail here.

[0066] Optionally, the cleaning component 210 can be a tracked cleaning component, which includes a first support 211, a second support 212, a mop 213, a support frame 214, and an elastic tensioning structure 215. The first support 211 is rotatably mounted on the rear side of the support frame 214 and close to the water distributor 300. The second support 212 is rotatably mounted on the front side of the support frame 214 and away from the water distributor 300. The mop 213 is detachably sleeved on the outside of the first support 211 and the second support 212. The elastic tensioning structure 215 is provided on the support frame 214 and is used to tighten the mop 213. The second support 212 can be a structure composed of several thin rollers. The height between the upper and lower surfaces of the mop 213 can be set uniformly from front to back, or it can gradually increase from front to back. When the tracked cleaning component is installed on the front side of the floor brush body 110, the cleaning motor 220 located on the front side of the floor brush body 110 can be housed within the first support member 211. The operating cleaning motor 220 drives the first support member 211 to rotate, and the first support member 211 can drive the mop 213 and the second support member 212 to rotate. The elastic tensioning structure 215 of the cleaning component 210 can adopt the structure used in the prior art to spread the two support members to tighten the mop 213, or it can adopt the structure used in the prior art to directly abut against the mop 213 to tighten the mop 213. The elastic tensioning structure 215 will not be described in detail here. In an alternative embodiment, the cleaning component 210 can adopt a single roller structure, or a double roller structure distributed front and rear, a conical roller structure, or any other cleaning component capable of achieving surface cleaning. The specific structure of the cleaning component 210 is not limited here.

[0067] Combination Figure 1 In this embodiment, the surface cleaning device 10 also includes a body 500. The upper end of the body 500 is provided with a handle 510 for the user to hold. Optionally, the handle 510 may be provided with several buttons and / or a screen for user operation, or the body 500 may be provided with a screen for user operation or display. The lower end of the body 500 is pivotally connected to the floor brush body 110 via a hinge joint 520. The body 500 can not only swing back and forth relative to the floor brush 100, but also rotate left and right relative to the floor brush 100.

[0068] Combination Figure 4 In this embodiment, the floor brush body 110 includes an upper shell 111 and a lower shell 112 that are fastened together. The upper shell 111 and the lower shell 112 cooperate to form a receiving cavity 113 located at the rear of the floor brush body 110. The receiving cavity 113 can be used to accommodate some components. Figure 2 , Figure 11The front end of the upper housing 111 extends forward relative to the lower housing 112 to form an extension 114. The extension 114 is located above the cleaning member 210 and is used to shield the cleaning member 210, so that some of the dirt carried up by the cleaning member 210 during the cleaning and / or self-cleaning process is not thrown outward under the shielding effect of the extension 114. A first cavity 115 for accommodating the swing member 420 is formed inside the extension 114. As a specific implementation of this embodiment, a portion of the upper housing 111 bulges upward to form a protrusion 1111. The inner cavity of the protrusion 1111 forms a first cavity 115 extending in the front-rear direction. The swing member 420 is vertically pivotally disposed in the first cavity 115. The heating assembly 410 is disposed at the bottom of the extension 114 and can shield the first cavity 115. The heating assembly 410 is located above the rear of the tracked cleaning member and simultaneously in front of the lower housing 112.

[0069] Combination Figure 11 , Figure 5 , Figure 6 In this embodiment, the swing member 420 is generally L-shaped and has a rotating shaft 423 arranged axially in the left-right direction at approximately the corner. The upper housing 111 has tongues 1112 extending downward from the top wall of the protrusion 1111. The tongues 1112 are arranged in pairs and have shaft holes 1113 that cooperate with the rotating shaft 423. Each pair of tongues 1112 is located on the left and right sides of the swing member 420, and the left and right ends of the rotating shaft 423 are respectively inserted into the shaft holes 1113 on the two tongues 1112. The swing member 420 is vertically pivotable in the first cavity 115 of the floor brush body 110 through the cooperation of the rotating shaft 423 and the shaft hole 1113. One end of the swing member 420 extends forward to form a mounting part 421, and the other end of the swing member 420 extends obliquely downward to form a transmission part 422. The swing member 420 can pivot vertically inward with the rotating shaft 423 as the fulcrum. The swing member 420 is similar to a lever. When the transmission part 422 of the swing member 420 swings downward, the mounting part 421 swings upward; when the transmission part 422 of the swing member 420 swings upward, the mounting part 421 swings downward. In a specific embodiment, the rotating shaft 423 and the swing member 420 can be integrally formed, or the rotating shaft 423 and the swing member 420 can be separately formed and then fixed together.

[0070] In this embodiment, two swing members 420 are preferably provided and symmetrically arranged corresponding to the two ends of the heating assembly 410. Correspondingly, the two ends of the heating element 411 are respectively installed on the mounting portions 421 of the two swing members 420. In other embodiments of this embodiment, the number of swing members 420 can also be set to other reasonable numbers, such as one, three, five, etc.

[0071] Combination Figure 10 , Figure 14In this embodiment, the heating assembly 410 further includes a fixing portion 412 and a flexible portion 413 that circumferentially surrounds the heating element 411. The flexible portion 413 allows the heating element 411 to move relative to the fixing portion 412. Specifically, the heating assembly 410 also has a frame 414, which includes an inner frame 4141, an outer frame 4142, and a flexible overmolded component 4143. The inner frame 4141 is located on the inner periphery of the outer frame 4142 and the two are separated from each other. The flexible overmolded component 4143 is located between the inner frame 4141 and the outer frame 4142. The inner side of the flexible overmolded component 4143 is fixed to the inner frame 4141 by overmolding, and the outer side of the flexible overmolded component 4143 is fixed to the outer frame 4142 by overmolding. The middle part of the flexible overmolded component 4143 is thinner and forms a flexible part 413 that is easily deformable. The flexible part 413 also covers the gap between the inner frame 4141 and the outer frame 4142 from the bottom side, preventing dirt from entering the gap between the frames 414. Figure 12 The outer frame 4142 is fixed to the bottom of the extension 114 by screws and forms the fixing part 412. The heating element 411 is wrapped with a heat insulation element 415. The inner frame 4141 is wrapped with the heat insulation element 415. The top of the frame 414 is provided with several crossbeams 4144 that are spaced apart in the left and right direction. The crossbeams 4144 are set perpendicular to the frame 414. The front and rear ends of the crossbeams 4144 are locked to the front and rear sides of the inner frame 4141 by screws. At the same time, the crossbeams 4144 are suspended below the extension 114 by lifting screws 4145. The lifting screws 4145 are locked with the crossbeams 4144 and are movably connected to the extension 114. The heating element 411, the heat insulation element 415, the inner frame 4141 and the crossbeams 4144 constitute a movable part. The flexible part 413 allows the movable part, including the heating element 411, to move relative to the fixing part 412. Because the flexible part 413 is deformable, it not only allows the heating element 411 to move up and down relative to the fixed part 412, but also allows it to move back and forth relative to the fixed part 412, thus ensuring that the heating element 411 is not obstructed when switching between the first and second positions. When the heating element 411 approaches the cleaning element 210, it can move back and forth to align with the cleaning element 210. Furthermore, when a large piece of dirt adhering to the cleaning element 210 moves to a position corresponding to the heating element 411, the heating element 411 can move to avoid the dirt, preventing the heating element 411 from becoming stuck against the cleaning element 210.

[0072] In this embodiment, optionally, when the cleaning component 210 is a tracked cleaning component, the heating component 410 is preferably disposed above the first support member 211 in the tracked cleaning component. The bottom surface of the heating component 411 forms a heating surface 4111 that can contact the mop 213. The heating surface 4111 is preferably configured as an arc-shaped surface adapted to the first support member 211. The heating surface 4111 protrudes downward from the first cavity 115 and is located above a portion of the cleaning component. When the heating component 411 is in the first position, the heating surface 4111 of the heating component 411 contacts the portion of the mop 213 located on top of the first support member 211, thereby allowing the heating component 411 to heat the mop 213. Preferably, the center of the heating surface 4111 and the center of the first support member 211 are located in the same vertical plane. When the heating member 411 is in the first position and the heating surface 4111 abuts against the mop 213, the heating member 411 and the first support member 211 are concentrically arranged, thereby improving the balance of force between the first support member 211 and the heating member 411 and avoiding the situation where the heating member 411 or the first support member 211 is offset due to their centers being misaligned. In addition, since the heating member 411 corresponds to the first support member 211, the heating member 411 in the first position can apply a downward force to the first support member 411. This force can increase the wiping force of the mop 213 located at the bottom of the first support member 211 on the ground, thereby improving the cleaning effect of the cleaning member 210. In an alternative embodiment, the heating member 211 can also be arranged corresponding to other parts of the tracked cleaning member, as long as the heating requirements are met without affecting the structural stability of the cleaning member 210.

[0073] Optionally, when the cleaning component 210 adopts a single-roller structure, the center of the heating component 411 is located in the same vertical direction as the center of the single-roller cleaning component, so that the heating component 411 in the first position can be concentrically set with the single-roller cleaning component; when the cleaning component 210 adopts a double-roller structure, the heating component 411 can heat only one of the rollers.

[0074] Combination Figure 12In this embodiment, the floor brush 100 is further provided with an elastic member 460 that presses the heating element 411 against the cleaning element 210. One end of the elastic member 460 is positioned and the other end abuts against the heating element 410. The elastic member 460 presses the heating element 411 against the cleaning element 210. Specifically, the elastic member 460 is preferably a spring 461. The spring 461 is sleeved on the outside of the lifting screw 4145. The upper end of the spring 461 abuts against the upper housing 111 for positioning, and the lower end of the spring 461 abuts against the crossbeam 4144. The spring 461 is in a compressed state and, through its abutment with the crossbeam 4144, presses the movable part of the heating element 410 downward, thereby pressing the heating element 411 downward so that the heating element 411 can be stably positioned in the first position. The spring 461 presses against the heating element 411. The applied pressure increases the contact force between the heating element 411 and the cleaning element 210 in the first position, thereby improving the heating effect of the heating element 411 on the cleaning element 210 and avoiding insufficient contact force between the heating element 411 and the cleaning element 210, which would result in an unsatisfactory heating effect. Simultaneously, when the cleaning element 210 malfunctions, the heating element 411 can overcome the pressure of the elastic element 360 and float upwards relative to the cleaning element 210, preventing the heating element 411 from jamming due to excessive contact with the cleaning element 210. When the heating element 411 overcomes the pressure of the spring 361 and moves from the first position to the second position, the spring 361 is further compressed. During the movement of the heating element 411 from the second position to the first position, the spring 361 can drive the heating element 411 to move from the second position to the first position. In an alternative embodiment, the lower end of the spring 461 may also abut against the mounting portion 421 of the swing member 420. The spring 461, in a compressed state, presses the movable part, including the heating member 411, against the cleaning member 210 through the mounting portion 421. Alternatively, two springs 461 may be provided, with the lower end of one spring abutting against the movable part of the heating assembly 410 to press the heating member 411 against the cleaning member 210, and the other spring abutting against the mounting portion 421 of the swing member 420 to press the heating member 411 against the cleaning member 210.

[0075] As an optional solution in this embodiment, in order to allow the heating element 411, which moves from the second position to the first position, to better contact the cleaning element 210, in this embodiment, the heating element 411 only moves up and down when the swing element 420 pivots. The heating element 411 that moves downward moves closer to the cleaning element, while the heating element 412 that moves upward moves away from the cleaning element. Based on this, combined with Figure 6 , Figure 12At least one end of the crossbeam 4144 at its front and rear ends is provided with an outwardly protruding limiting portion 4146. The extension portion 114 has a limiting groove 1114 corresponding to the limiting portion 4146 on its inner wall above the heating assembly 410. The limiting groove 1114 extends vertically, and a portion of the limiting portion 4146 is located within the limiting groove 1114. The cooperation between the limiting portion 4146 and the limiting groove 1114 limits the movement of the heating element 411 driven by the swing member 420, thus allowing the heating element 411 to move only up and down. In a specific embodiment, the limiting groove 1114 can be formed by a partial recess in the upper shell 111 or by a pair of limiting ribs provided on the upper shell 111.

[0076] Combination Figure 9 , Figure 13The heating element 411 is mounted on the mounting portion 421 of the swing element 420 via a bracket 416. Furthermore, the bracket 416 and the mounting portion 421 of the swing element 420 are connected by a connecting and fitting structure. This structure has a clearance that allows the heating element 411, driven by the swing element 420, to move only longitudinally. By rationally designing the fit between the bracket 416 and the swing element 420, the heating element 411 only undergoes linear motion in the up-down direction when the swing element 420 pivots, thus avoiding interference with the pivoting of the swing element 420. Specifically, the bracket 416 is combined with the heating element 411, and the bracket 416 protrudes upward relative to the heating element 411. The mounting part 421 is provided with a mounting hole 4211 for the bracket 416 to be inserted. The diameter of the mounting hole 4211 is larger than the outer diameter of the bracket 416. The mounting part 421 and the bracket 416 are connected together by a pin 417. The bracket 416 is provided with an axially transverse pin hole 4161 that is adapted to the pin 417. The mounting part 421 is provided with an elongated hole 4212 that is concentric with the pin hole 4161 and adapted to the pin 417. The diameters of the pin hole 4161 and the elongated hole 4212 are both slightly larger than the outer diameter of the pin 417. The bracket 416 is inserted into the mounting hole 4211, and the pin 417 passes through the elongated hole 4212 and the pin hole 4161. The two ends of the pin 417 are bent relative to the elongated hole 4212 and locked in the groove of the mounting part 421, thereby axially limiting the pin 417. The mounting hole 4211, pin 417, pin hole 4161, and elongated hole 4212 constitute the connection and fit structure between the bracket 416 and the mounting part 421. The fit clearance between the mounting hole 4211 and the bracket 416 allows the bracket 416 to shift laterally relative to the mounting part 421, and the fit clearance between the pin 417 and the pin hole 4161 allows the bracket 416 to shift longitudinally relative to the mounting part 421. This allows the heating element 411 to move only up and down under the limiting action of the limiting part 4146 and the limiting groove 1114 when the swinging member 420 pivots, without moving back and forth. This minimizes the influence of external factors on the heating element 411 during its movement from the second position to the first position, or in other words, ensures that the heating element 411 remains concentric with the cleaning member 210. After moving from the second position to the first position, the heating element 411 in the first position can fit better with the cleaning member 210, which helps reduce the difficulty of fitting when the heating element 411 contacts the cleaning member 210 and improves the contact effect between the heating element and the cleaning member.

[0077] Combination Figure 7In this embodiment, the lower housing 112 has a second cavity 116 with its opening facing forward on its front side. The second cavity 116 extends in the left-right direction, and the water divider 300 is fixedly disposed in the second cavity 116. The length direction of the water divider 300 is arranged in the left-right direction. In order to enable the trigger 430 to slide with the water divider 300, the lower part of the water divider 300 is set in a semi-cylindrical shape, that is, the lower part of the water divider 300 has an arc-shaped outer contour along the cross section perpendicular to the length direction. Correspondingly, the trigger 430 is set in a long arc-shaped plate. The cross section of the trigger 430 is also arc-shaped along the cross section perpendicular to the length direction. The trigger 430 is rotatably disposed in the second cavity 116 and located on the outer periphery of the lower part of the water divider 300. The trigger 430 and the water divider 300 are axially parallel and approximately concentric. Through the arc-shaped engagement, the trigger 430 can reciprocate relative to the water divider 300 about its own central axis as the axis of rotation L.

[0078] Combination Figure 8 In this embodiment, the trigger 430 has lugs 431 with holes at both ends. The left and right sidewalls of the second cavity 116 have bearing posts, which are inserted into the holes on the lugs 431. This allows the trigger 430 to be rotatably disposed within the second cavity 116 and to slide relative to the water distributor 300. The water distributor 300 can be locked to the top wall of the second cavity 116 with screws, thus preventing the screws used to fix the water distributor 300 from obstructing the rotation of the trigger 430. An elastic pad can be provided between the top side of the water distributor 300 and the top wall of the second cavity 116 to eliminate gaps between them and prevent dirt from entering.

[0079] Combination Figure 7 , Figure 8 In this embodiment, the floor brush 100 is further provided with a driving component 440 for driving the trigger component 430 to reciprocate. Specifically, the driving component 440 includes a switching motor 441, a worm gear 442, and a worm wheel 444. The switching motor 441 is provided with a motor shaft 4411, the worm gear 442 is sleeved on the motor shaft 4411, and the worm wheel 444 is provided on the trigger component 430 and meshes with the worm gear 442. The operating switching motor 441 drives the trigger component 430 to rotate through the meshing worm gear 442 and worm wheel 444. The rotating trigger component 430 engages or disengages with the oscillating component 420. Specifically, combined with Figure 4The drive unit 440 is located in the receiving cavity 113 of the floor brush body 110. The switching motor 441 is preferably axially vertical and the motor shaft 4411 is preferably facing upward. The lower housing 112 of the floor brush body 110 forms a motor cavity 1171 for installing the switching motor 441. The switching motor 441 is inserted into the motor cavity 1171 and locked to the lower housing 112 by screws. A limiting bearing 443, which is higher than the worm gear 442, is fitted onto the upper end of the motor shaft 4411. A bearing bracket 1172 is fixed on the upper housing 111. The bearing bracket 1172 has a bearing chamber 1173 with its opening facing downward. The limiting bearing 443 fitted onto the upper end of the motor shaft 4411 is located inside the bearing chamber 1173. The upper end of the motor shaft 4411 is limited by the cooperation between the limiting bearing 443 and the bearing chamber 1173, which prevents the motor shaft 4411 from being easily deformed or displaced due to the cantilever structure formed at the upper end. This ensures the structural stability of the motor shaft 4411, thereby ensuring the meshing stability of the worm gear 442 and the worm wheel 444. The worm gear 444 is located on the outside of the trigger member 430. Since the movement stroke of the heating element 411 switching between the first position and the second position does not need to be large, the pivot amplitude of the swing member 420 also does not need to be large. Therefore, the reciprocating rotation amplitude of the trigger member 430 does not need to be large. Thus, the worm gear 444 does not need to be a full circle; only a few teeth are needed to meet the rotation amplitude requirements of the trigger member 430, greatly reducing the external size of the worm gear 444 and keeping the overall structure of the floor brush 100 compact. The lower housing 112 has a through-hole 1121 on the rear wall of the second cavity 116 that is adapted to the worm gear 444. The worm gear 444 extends into the receiving cavity 113 from the through-hole 1121 and meshes with the worm 442. In an alternative embodiment, the switching motor 441 can also be configured with the motor shaft 4411 facing downwards. In this case, the motor cavity for mounting the switching motor 441 is located on the upper housing 111 with its opening facing downwards, the limiting bearing is sleeved on the lower end of the motor shaft 4411, and the bearing bracket with a bearing chamber is fixed on the lower housing 112 with the bearing chamber opening facing upwards. Of course, the bearing bracket 1172 with the bearing chamber 1173 can be made of a higher strength material. In addition, the bearing chamber 1173 that cooperates with the limiting bearing 443 can also be directly located on the upper housing 111 or the lower housing 112.

[0080] In this embodiment, the lower housing 112 has a centrally located suction port 118 at the bottom of the second cavity 116. A floor scraper 119 is located below the suction port 118 at the front end of the bottom side of the lower housing 112. The floor scraper 119 extends horizontally and is elastic, with its lower edge able to contact the ground. To improve the stability of the switching motor 441 driving the trigger 430 to rotate, the worm gear 444 should be positioned as close as possible to the suction port 118, thereby placing the worm gear 444 as close as possible to the axial center of the trigger 430, thus improving the force stability of the trigger 430 when driven by the driven component 440.

[0081] As an optional embodiment, the floor brush 100 is further provided with a scraper 450 for scraping the cleaning component 210. The scraper 450 extends in the left-right direction and is arranged parallel to the water distribution component 300. Specifically, in this embodiment, the scraper 450 is rotatably disposed in the second cavity 116 and located on the outer side of the lower part of the water distribution component 300. The rotation axis of the scraper 450 coincides with or is parallel to the rotation axis L of the trigger component 430. The lower end of the trigger component 430 extends forward to cooperate with the scraper 450. When the drive component 440 drives the trigger component 430 to rotate, it simultaneously drives the scraper 450 to rotate. Optionally, the scraping component 450 includes comb teeth 451 and scraper 452. The comb teeth 451 have multiple teeth spaced apart along the length direction. The scraper 452 is located on top of the comb teeth 451, and its leading edge protrudes outward relative to the comb teeth 451. The teeth of the comb teeth 451 can extend into the bristles of the cleaning component 210 to comb the bristles, thereby scraping away hair and other dirt entangled on the cleaning component 210. The leading edge of the scraper 452 can abut against the cleaning component 210 to scrape and squeeze the bristles, thereby squeezing out the dirt and liquid absorbed by the bristles. Furthermore, the comb teeth 451 can be integrally formed with the trigger component 430, and the scraper 452 can be made of a high-strength metal material and fixed to the leading edge of the trigger component 430. In other alternatives to this embodiment, the comb teeth 451 can also be formed independently and fixed together with the scraper 452 to the front end of the trigger member 430; or, the scraper member 450 can also only have the scraper 452, which is preferably made of high-strength metal material and fixed to the front end of the trigger member 430; or, the scraper member 450 can also have two rows of comb teeth, which can be integrally formed with the trigger member 430, or one row can be integrally formed with the trigger member 430 and the other row can be formed independently and fixed to the front end of the trigger member 430; here, the specific structure of the scraper member 450 is not limited too much, as long as it meets the requirements of the scraping and cleaning member 210.

[0082] In this embodiment, to improve the rotational stability of the trigger 430, the scraper 450 is fixed to the front end of the trigger 430 by a pressure plate 470. The pressure plate 470 has an arc-shaped portion 471 concentric with the trigger 430. The front side of the water distribution component 300 has an arc-shaped groove 311 concentric with the arc-shaped portion 471 and a sealing strip 312 located on the front side of the arc. The arc-shaped portion 471 extends into the arc-shaped groove 311 and the two slide in cooperation. The sealing strip 312 is located on the front side of the arc-shaped portion 471 and is elastic. The lower end of the sealing strip 312 is bent backward and abuts against the front surface of the arc-shaped portion 471. The arc-shaped portion 471 and the arc-shaped groove 311 cooperate to guide and limit the rotating swing component 420 and the scraper 450, thereby improving the motion stability of the swing component 420 and the scraper 450, and also indirectly improving the scraping stability of the scraper 450 on the cleaning component 210. The mating gap between the lower end of the sealing strip 312 and the front surface of the arc-shaped part 471 is sealed by the contact fit between the arc-shaped groove 311 and the arc-shaped part 471 on the side facing the cleaning part 210, so as to prevent dirt from entering the arc-shaped groove 311.

[0083] In this embodiment, to allow the trigger 430 to rotate smoothly within the second cavity 116, a certain gap is provided between the trigger 430 and the lower cavity wall of the second cavity 116 to prevent the lower cavity wall of the second cavity 116 from interfering with the rotation of the swing member 420. To prevent dirt from entering the second cavity 116, a soft rubber part 480 is provided between the bottom surface of the swing member 420 and the lower cavity wall of the second cavity 116 to cover the gap between them. When the swing member 420 rotates, it will cause the soft rubber part 480 to change shape, so that the shape of the soft rubber part 480 can dynamically match the size and shape of the gap, thereby allowing the soft rubber part 480 to better meet the requirements of blocking dirt. Figure 18 , Figure 19 In this embodiment, the soft rubber component 480 includes a first part 481, a second part 482, and a third part 483 connected sequentially. The first part 481 is fixed to the front end of the trigger 430 by overmolding, and the third part 483 is fixed to the front side of the positioning plate 130 by overmolding. The positioning plate 130 is positioned on the lower cavity wall of the second cavity 116. The upper end of the second part 482 is thinned at the connection with the first part 481 to form a deformable upper connection 484, and the lower end of the second part 482 is thinned at the connection with the third part 483 to form a deformable lower connection 485. The upper connection 484 and the lower connection 485 can form a structure similar to a folding shaft, allowing the first part 481 and the second part 482 to be folded or unfolded relative to each other, and also allowing the third part 483 and the second part 482 to be folded or unfolded relative to each other.

[0084] In this embodiment, the scraping component 450, the water outlet of the water distribution component 300, and the heating component 411 are sequentially distributed from upstream to downstream along the rotation direction of the cleaning component 210 during operation. The transmission part 422 of the swing component 420 is located inside the upper end of the trigger component 430. When the trigger component 430 rotates in one direction, it can engage with the transmission part 422 of the swing component 420, thereby allowing the swing component 420 to pivot driven by the trigger component 430. When the trigger component 430 rotates in another direction, it can disengage from the transmission part 422 of the swing component 420, thereby allowing the trigger component 430 to separate from the transmission part 422.

[0085] In this embodiment, the surface cleaning device 10 also includes a clean water tank for holding the cleaning liquid. The cleaning liquid in the clean water tank can flow to the water distribution component 300 through the supply pipeline under the pumping action of the pump. The liquid flowing into the water distribution component 300 can be sprayed onto the cleaning component 210 from the water outlet. The clean water tank can be detachably installed on the front or rear side of the body 500, or it can be detachably installed on the floor brush body 110, or it can be integrated with the cover 120 of the floor brush 100. There are no major restrictions on the specific structure and installation position of the clean water tank. Furthermore, an electrolysis module can be installed on the supply pipeline. The electrolysis module is used to electrolyze the cleaning liquid flowing to the water distribution component 300 and can generate hydroxyl radicals (·OH). Under the premise that the electrolysis module is working, the heating element 411 does not need to heat the cleaning component 210.

[0086] In this embodiment, the surface cleaning device 10 further includes a suction assembly 600, which includes a blower 620 and a wastewater tank 610. The wastewater tank 610 is detachably mounted on the body 500. A suction channel 140 for connecting the suction port 118 and the wastewater tank 610 is provided between the lower end of the body 500 and the floor brush body 110. The specific structure of the wastewater tank 610 can refer to the prior art and will not be described in detail here. The blower 620 can be located inside the upper end of the body 500, or it can be used together with the battery pack for power supply as a component of the suction power source assembly. The suction power source is detachably mounted on the body 500. The suction power source assembly detached from the body 500 can be connected to a separate vacuuming accessory for dry vacuuming. When the blower 620 is working, it provides suction to create a negative pressure inside the sewage tank 610 and forms a suction airflow from the suction port 118 into the sewage tank 610. The dirt at the suction port 118 can flow into the sewage tank 610 with the suction airflow, thus achieving the collection of dirt.

[0087] In this embodiment, a control module 700 is provided inside the body 500. Electrical components such as the cleaning motor 220, the switching motor 441, the fan 620, and the pump are controlled by the control module 700. The control module 700 can also autonomously issue commands based on information fed back from various sensors.

[0088] Combination Figures 14 to 17When the heating element 411 is stably positioned in the first position under the pressure of the spring 461, the heating element 411 and the first support member 211 are basically concentric. The heating surface 4111 of the heating element 411 contacts the mop 213 located on top of the first support member 211. The heating element 411 can heat the liquid-wetted mop 213 on one hand, and increase the wiping force of the mop located at the bottom of the first support member 211 on the ground through the first support member 211, effectively improving the cleaning ability of the mop 213 on the ground. At this time, the trigger member 430 and the transmission part 422 of the swing member 420 are basically separated, and the scraping member 450 is in contact with the mop 213, and the scraping member 450 can scrape and squeeze the mop 213.

[0089] When the driving member 440 drives the swing member 420 to rotate in the second direction indicated by -ω, the trigger member 430 drives the scraper member 450 to rotate synchronously, causing the scraper member 450 to swing downward. The downward-swinging scraper member 450 disengages from the cleaning member 210. At the same time, the trigger member 430 abuts against the transmission part 422 of the swing member 420 and drives the transmission part 422 to swing downward. The mounting part 421 of the swing member 420 swings upward under the action of the lever. The upward-swinging mounting part 421 drives the heating member 411 to overcome the pressure of the spring 361 and move upward relative to the fixed part 412 through the connecting and cooperating structure. The upward-moving heating member 411 disengages from the cleaning member 210. When the trigger 430 rotates to its position, the scraper 450 rotates to its position simultaneously and separates from the mop 213. A gap of a certain width is formed between the front end of the scraper 450 and the mop 213. At the same time, the heating element 411 moves upward to the second position and separates from the mop 213, and a gap of a certain width is also formed between the heating surface 4111 and the mop 213. Since the scraper 450 and the heating element 411 separate from the mop 213 of the cleaning element 210 at the same time, the dirt stuck between the scraper 450 and the cleaning element 210, the dirt accumulated on top of the scraper 450, and the dirt stuck between the heating element 411 and the cleaning element 210 can all be sucked away through the suction port 118.

[0090] When the drive member 440 drives the trigger member 430 to rotate in the first direction indicated by +ω, the trigger member 430 releases the transmission part 422 of the swing member 420, that is, the trigger member 430 separates from the transmission part 422. The spring 361, which restores its deformation, applies force to the movable part of the heating component 410, thereby causing the heating component 411 to move downward from the second position to the first position that abuts against the cleaning component 210. The downwardly moving movable part causes the mounting part 421 of the swing member 420 to swing downward. The transmission part 422 of the swing member 420 swings upward under the action of the lever. At the same time, the trigger member 430 causes the scraper 450 to swing upward to the scraping position that abuts against the cleaning component 210, so that the front end of the scraper 450 and the heating surface 4111 of the heating component 411 simultaneously abut against the mop 213 of the cleaning component 210.

[0091] During the operation of the surface cleaning device 10, the heating element 411 can heat the cleaning element 210 that has been wetted by the liquid by default. Whether the heating element 411 heats the cleaning element 210 can also be manually started and stopped by the user according to the usage situation. At this time, a button for the user to start and stop the heating element 411 can be set on the body 500 or the handle 510.

[0092] During the self-cleaning process after the surface cleaning device 10 has finished working, the drive member 440 can simultaneously drive the scraper member 450 and the heating member 411 to disengage from the cleaning member 210 via the swing member 420, so as to remove the stuck dirt. After the self-cleaning is completed, the drive member 440 can simultaneously drive the scraper member 450 and the heating member 411 to return to the position of contacting the cleaning member 210 via the swing member 420. The scraper member 450 can scrape the liquid absorbed by the cleaning member 210 during the drying process, and the heating member 411 can also assist or independently dry the cleaning member 210, which helps to improve the drying efficiency of the cleaning member 210.

[0093] In this embodiment, the rotation amplitude of the trigger 430 can be set to any reasonable size such as 23°, 25°, 27°, 30°, 32°, 35°, 37°, 40°, etc.

[0094] Example 2

[0095] In this embodiment, the heating element is fixedly connected to the mounting part of the swinging element via a bracket. Specifically, the bracket and the mounting part of the swinging element can be directly locked and fixed with fasteners such as screws. When the swinging element pivots, the heating element rotates up and down with the mounting part, that is, the heating element performs an arc motion when the swinging element pivots. The upward swinging heating element detaches from the cleaning element, and the downward swinging heating element contacts the cleaning element.

[0096] The other contents of Example 2 are the same as those of Example 1, and will not be repeated here.

[0097] Example 3

[0098] In this embodiment, the scraper is independently configured relative to the trigger. The independently configured scraper can be fixedly installed; for example, it can be fixed to the bottom side of the water-distributing component. The trigger, driven to rotate by the drive component, only moves the heating element closer to or away from the cleaning component without touching the scraper. In this case, the heating element can be in the second position when heating the liquid-wetted cleaning component is not required, reducing the rotational resistance caused by the heating element. The heating element only switches to the first position when heating the liquid-wetted cleaning component is required.

[0099] Of course, the independently configured scraper can also be designed to move back and forth. In this case, a separate drive structure can be provided within the floor brush to propel the scraper forward and backward. When the drive unit, through the trigger and the oscillating element, switches the heating element from the first position to the second position, the drive structure propels the scraper from front to back, causing it to detach from the cleaning element. When the drive unit, through the trigger and the oscillating element, switches the heating element from the second position to the first position, the drive structure propels the scraper from back to front, causing its tip to contact the cleaning element. The drive structure for propelling the scraper forward and backward can refer to existing technologies and will not be elaborated here.

[0100] The other contents of Example 3 are the same as those of Example 1, and will not be repeated here.

[0101] In addition to the preferred embodiments described above, there are other embodiments of this utility model. Those skilled in the art can make various changes and modifications based on this utility model. As long as they do not depart from the spirit of this utility model, they should all fall within the scope defined in the claims of this utility model.

Claims

1. A surface cleaning device with a movable heating element, comprising a floor brush, the floor brush having a cleaning element and a water distribution element for supplying liquid to the cleaning element, characterized in that, The floor brush further includes a heating assembly with a heating element, a oscillating element, and a triggering element. The heating element is at least partially disposed above the cleaning element and extends along an axis parallel to the cleaning element. The triggering element extends along the axis of the water distribution element and is at least partially slidably engaged with the water distribution element. The oscillating element is pivotally disposed on the floor brush. One end of the oscillating element is a mounting part for mounting the heating element, and the other end is a transmission part that selectively engages with the triggering element. The triggering element is separated from the transmission part to place the heating element in a first position that contacts the cleaning element, and the triggering element engages with the transmission part to place the heating element in a second position that separates it from the cleaning element.

2. The surface cleaning device with a movable heating element according to claim 1, characterized in that, The floor brush is also provided with a rotatable scraping component and a driving component for driving the trigger component to rotate. The trigger component extends to cooperate with the scraping component, and the driving component drives the trigger component to rotate while simultaneously driving the scraping component to rotate.

3. A surface cleaning device with a movable heating element according to claim 2, characterized in that, The driving member drives the trigger member to rotate in a first direction so that both the scraping member and the heating member come into contact with the cleaning member; the driving member drives the trigger member to rotate in a second direction so that both the scraping member and the heating member separate from the cleaning member.

4. A surface cleaning device with a movable heating element according to claim 1, characterized in that, The floor brush is also provided with a driving component to drive the trigger to rotate. The driving component includes a switching motor, a worm gear sleeved on the motor shaft of the switching motor, and a worm wheel provided on the trigger. The worm wheel meshes with the worm gear. The trigger engages or disengages with the transmission part of the swinging component under the driving action of the driving component.

5. A surface cleaning device with a movable heating element according to claim 1, characterized in that, The floor brush has a first cavity for mounting a swinging component. The swinging component has a rotating shaft and is pivotally mounted in the first cavity. The heating component is mounted on the mounting part of the swinging component via a bracket. The heating surface of the heating component is exposed downward in the first cavity and is at least partially located above the cleaning component.

6. A surface cleaning device with a movable heating element according to claim 5, characterized in that, The heating element is fixedly connected to the mounting part of the swinging element via a bracket, and the heating element moves closer to or further away from the cleaning element as the swinging element pivots.

7. A surface cleaning device with a movable heating element according to claim 5, characterized in that, The bracket and the mounting part of the swinging component are connected by a connecting and fitting structure. The connecting and fitting structure has a fitting gap that allows the heating component driven by the swinging component to move only longitudinally. The heating component moves up and down as the swinging component pivots to move closer to or away from the cleaning component.

8. A surface cleaning device with a movable heating element according to claim 1, characterized in that, The floor brush is provided with an elastic element that biases the heating element toward the cleaning element. One end of the elastic element is positioned and the other end abuts against the heating component and / or the swinging element. The elastic element is deformed by force when the heating element moves away from the cleaning element.

9. A surface cleaning device with a movable heating element according to claim 1, characterized in that, The heating assembly further includes a fixed portion and a flexible portion that circumferentially surrounds the heating element, the flexible portion allowing the heating element to move relative to the fixed portion.

10. A surface cleaning device with a movable heating element according to any one of claims 1 to 9, characterized in that, The cleaning component is a tracked cleaning component, which includes a first support component near the water distribution component and a second support component away from the water distribution component. When the heating component is in the first position, it is concentrically arranged with the first support component.

Images