A surface cleaning apparatus having a belt

Abstract

The utility model discloses a kind of tracked surface cleaning devices, belong to cleaning equipment technical field, including floor brush and track assembly, track assembly includes track bracket and detachably installed annular cleaning cloth, track bracket includes frame body, first support and second support for supporting annular cleaning cloth, movable piece between first support and frame body, movable piece has installation end and support end, movable piece is installed on frame body or first support by installation end, the support end of movable piece is in abutment with the inner surface of annular cleaning cloth when track assembly is installed in floor brush. The abutment of support end makes annular cleaning cloth in the suspended area between two supports be supported, support end plays the role of auxiliary tension annular cleaning cloth, thereby improve the degree of fit between annular cleaning cloth and ground, can increase the wiping degree of annular cleaning cloth to ground, it is favorable to improve cleaning effect.

Description

Technical Field

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

[0002] To improve cleaning efficiency, some surface cleaning machines use a tracked mop structure for their cleaning components. The ring-shaped cleaning cloth of the tracked mop structure is generally supported by a support frame, which usually includes two spaced support members. This creates a wiping area with a certain area on the bottom side of the ring-shaped cleaning cloth, thereby increasing the contact area between the cleaning component and the ground.

[0003] To enable the detachable mounting of the ring-shaped cleaning cloth to the support frame, a movable elastic structure is typically provided between the two support members, allowing them to move closer or further apart. For example, invention application CN118787287A discloses a rotating structure on the support plate of the roller brush holder. One end of the rotating structure is telescopically mounted between the support plate and the roller via a mounting bracket, allowing the support plate and roller to move closer or further apart for easy assembly and disassembly of the ring-shaped cleaning cloth. Another example is invention application CN114886347A, which discloses a support assembly between two rotating shafts. Both ends of the support assembly are connected to the two rotating shafts, and the middle of the support assembly has an elastic structure, allowing the two rotating shafts to move closer or further apart for easy disassembly of the ring-shaped cleaning cloth. To reduce resistance during the disassembly of the ring-shaped cleaning cloth, the elastic structure between the two support members is typically present in the gap area of ​​the ring-shaped cleaning cloth, and the ring-shaped cleaning cloth is tensioned by the two support members. However, the presence of the gaps prevents the soft, circular cleaning cloth from being effectively supported, causing it to not adhere tightly to the ground when the machine is working. This results in insufficient wiping force in the wiping area, which is detrimental to the cleaning effect. In addition, it also increases the chance of the circular cleaning cloth slipping. Utility Model Content

[0004] To address the shortcomings and deficiencies in the existing technology, this utility model provides a tracked surface cleaning device. The device utilizes the abutment of the support end to support the annular cleaning cloth in the suspended area between two support members. The support end also assists in tensioning the annular cleaning cloth, thereby increasing the adhesion between the annular cleaning cloth and the ground. This increases the wiping force of the annular cleaning cloth on the ground and improves the cleaning effect.

[0005] To achieve the above-mentioned technical objectives, this utility model provides a tracked surface cleaning device, including a floor brush and a track assembly. The track assembly includes a track bracket and a detachably installable annular cleaning cloth. The track bracket includes a frame, a first support member and a second support member for supporting the annular cleaning cloth, and a movable member disposed between the first support member and the frame. The movable member has an installation end and a support end. The movable member is installed on the frame or the first support member through the installation end. When the track assembly is installed on the floor brush, the support end of the movable member abuts against the inner surface of the annular cleaning cloth.

[0006] Preferably, the movable component has at least one rolling element on each of the upper and lower sides of the support end, and the rolling elements abut against the upper and lower sides of the annular cleaning cloth respectively when the track assembly is installed on the floor brush.

[0007] Preferably, the support end of the movable component is separated from the annular cleaning cloth when the track assembly is not installed on the floor brush.

[0008] Preferably, the mounting end of the movable component is movably mounted on the frame, and the supporting end of the movable component abuts against the first supporting component when the track assembly is not mounted on the ground brush; or, the mounting end of the movable component is movably mounted on the first supporting component, and the supporting end of the movable component abuts against the frame when the track assembly is not mounted on the ground brush.

[0009] Preferably, the first support member is a driving roller, and the second support member includes driven rollers that are longitudinally spaced on the frame, wherein the maximum longitudinal spacing between the driven rollers is less than the diameter of the driving roller.

[0010] Preferably, the first support member, the frame, and the second support member are arranged sequentially from back to front, and each of the driven rollers is installed on the front side of the frame, with a longitudinal gap between any two driven rollers.

[0011] Preferably, the driven roller located above the second support member is positioned rearward relative to the driven roller located below.

[0012] Preferably, the track assembly further includes a side plate, and the first support member, the second support member, and the frame are all stable at one end relative to the side plate and suspended at the other end. The suspended ends of the first support member and the suspended ends of the second support member can be far apart or close to each other.

[0013] Preferably, the suspended end of the track support is provided with a latch, which locks with the first support member or the second support member so that the suspended ends of the first support member and the second support member are kept close to each other.

[0014] Preferably, the mounting end of the movable component is movably mounted on the frame, the frame is provided with a limiting part, the mounting end is provided with a mounting structure that cooperates with the limiting part, and the mounting structure and the limiting part are movably mounted through an elastic element.

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

[0016] 1. The surface cleaning device provided by this utility model includes a track bracket for mounting a ring-shaped cleaning cloth, comprising a frame, a first support member, a second support member, and a movable member. The movable member is located between the first support member and the frame, with its mounting end installed on either the frame or the first support member. The supporting end of the movable member can abut against the inner surface of the ring-shaped cleaning cloth. When the track assembly is mounted on the floor brush, the supporting end of the movable member abuts against the inner surface of the ring-shaped cleaning cloth. The supporting end of the movable member supports the suspended area of ​​the ring-shaped cleaning cloth between the two supports, thus assisting in tensioning the ring-shaped cleaning cloth. This increases the adhesion between the ring-shaped cleaning cloth and the ground, thereby increasing the wiping force of the ring-shaped cleaning cloth and improving the cleaning effect. Furthermore, the further tension of the ring-shaped cleaning cloth by the supported end increases the friction between itself and the support member, ensuring that the ring-shaped cleaning cloth can be smoothly driven to rotate by the support member (which acts as the drive roller), preventing slippage of the ring-shaped cleaning cloth.

[0017] 2. Preferably, the movable component has at least one rolling element on each of the upper and lower sides of the support end. When the track assembly is installed on the floor brush, the rolling elements on the upper and lower sides respectively abut against the upper and lower sides of the annular cleaning cloth. The rolling elements significantly reduce the friction between the support end and the annular cleaning cloth when they come into contact, preventing the rotation of the annular cleaning cloth from being obstructed by the contact of the support end, and also reducing wear on the annular cleaning cloth caused by the contact of the support end. Furthermore, the rolling elements on the upper and lower sides of the support end can further increase the tension strength of the annular cleaning cloth, thereby further improving the adhesion between the annular cleaning cloth and the ground. Moreover, the contact between the rolling elements on the upper and lower sides and the upper and lower sides of the annular cleaning cloth ensures that both the upper and lower sides of the support end are subjected to force, improving the force balance on both sides of the support end and thus ensuring the structural stability of the movable component.

[0018] 3. When the track assembly is not installed on the ground brush, the support end of the moving part is separated from the ring-shaped cleaning cloth. When the ring-shaped cleaning cloth is installed on the track bracket or removed from the track bracket, the support end of the moving part will not come into contact with the ring-shaped cleaning cloth, reducing interference to the installation and removal of the ring-shaped cleaning cloth, thereby reasonably reducing the difficulty of installing and removing the ring-shaped cleaning cloth.

[0019] 4. The mounting end of the movable component is movably mounted on the frame or the first support member. When the track assembly is not installed on the ground brush, the supporting end of the movable component abuts against the other. The movable component provides positioning support to the frame and the first support member, improving their structural stability. Furthermore, when assembling or disassembling the annular cleaning cloth, the supporting end of the movable component abuts against the first support member or the frame, separating the supporting end from the annular cleaning cloth. This effectively reduces the difficulty of assembling or disassembling the annular cleaning cloth.

[0020] 5. The first support component is a drive roller, and the second support component includes driven rollers longitudinally spaced on the frame. The maximum longitudinal spacing between the driven rollers is less than the diameter of the drive roller. By rationally arranging the structure of the two support components, the central angle of the circumferential contact area between the annular cleaning cloth and the drive roller is greater than 180°. This maximizes the contact area between the annular cleaning cloth and the drive roller, thereby increasing the driving force of the rotating drive roller on the annular cleaning cloth. This allows the drive roller to smoothly drive the annular cleaning cloth to rotate, further preventing slippage. Additionally, the longitudinal spacing of the driven rollers reduces their diameter, thus reducing the corner radius of the annular cleaning cloth at the bottom front end, enabling the annular cleaning cloth to effectively clean corners of the floor.

[0021] 6. The first support member, the frame, and the second support member are arranged sequentially from back to front. The driven roller, which serves as the second support member, is installed on the front side of the frame. There is a longitudinal gap between any two driven rollers. The longitudinal gap provides appropriate flexible deformation space for the annular cleaning cloth. When the brush moves and the front side of the annular cleaning cloth collides with the edge of the cabinet or other objects, the annular cleaning cloth under force can be concave into the longitudinal gap to avoid being torn due to the impact, thus ensuring the service life of the annular cleaning cloth.

[0022] 7. In the second support member, the driven roller located above is positioned further back than the driven roller located below. By reasonably setting the relative positional relationship between the upper and lower driven rollers in the front-to-back direction, the front side of the annular cleaning cloth is tilted backward from bottom to top, thereby providing a certain clearance space for the front side of the annular cleaning cloth. This allows the bottom edge of the front side of the annular cleaning cloth to move as close to the wall as possible when cleaning the floor, which is beneficial to improving the cleaning effect.

[0023] 8. The first support member, the second support member, and the frame all have one end stabilized relative to the side plate and the other end suspended in the air. The suspended ends of the two support members can move away from or towards each other. When the suspended ends of the two support members are close together, the two support members loosen the annular cleaning cloth, making it easy to fit the annular cleaning cloth onto the track bracket and also easy to remove the annular cleaning cloth from the track bracket. When the suspended ends of the two support members are far apart, the two support members can tighten the annular cleaning cloth. The specific structure of the track bracket is reasonably designed so that the two support members can loosen or tighten the annular cleaning cloth as needed.

[0024] 9. The suspended end of the track support is equipped with a latch. The latch can be locked with the first support or the second support. The latch allows the two supports to be stably kept close to each other when the user removes the ring-shaped cleaning cloth. When removing the ring-shaped cleaning cloth, the user does not need to keep the two supports close together with one hand and apply force to the ring-shaped cleaning cloth with the other hand. The latch can greatly reduce the difficulty of the user's operation when removing the ring-shaped cleaning cloth, which is conducive to improving the user experience.

[0025] 10. Preferably, the mounting end of the movable component is movably mounted on the frame. Correspondingly, the supporting end of the movable component corresponds to the first supporting component. The first supporting component does not require a mounting structure to cooperate with the mounting end. The first supporting component can act as an active roller to drive the annular cleaning cloth to rotate or as a driven roller to be driven by the annular cleaning cloth to rotate. This facilitates a reasonable simplification of the structure of the first supporting component and also facilitates a reasonable reduction in the related assembly structure that cooperates with the mounting end. The mounting end of the movable component is provided with a mounting structure, and a limiting part is provided on the frame. The mounting structure and the limiting part are movably mounted through an elastic element. The elastic element allows the movable component to float relative to the frame, so that the supporting end of the movable component can elastically abut against the inner surface of the annular cleaning cloth. This allows the supporting end of the movable component to tighten the annular cleaning cloth without jamming it. Attached Figure Description

[0026] Figure 1 This is an overall diagram of the surface cleaning device in Embodiment 1;

[0027] Figure 2 This is an exploded view of the ground brush in Example 1;

[0028] Figure 3 This is a structural diagram of the track assembly in Embodiment 1;

[0029] Figure 4 This is a cross-sectional view of the brush along the front-to-back direction in Embodiment 1;

[0030] Figure 5 This is a structural diagram of the track support in Embodiment 1;

[0031] Figure 6 This is an exploded view of the track support in Example 1;

[0032] Figure 7 This is a cross-sectional view perpendicular to the axial direction when the track assembly is not installed on the ground brush in Embodiment 1;

[0033] Figure 8 This is a cross-sectional view of the track assembly along the axial direction in Embodiment 1;

[0034] Figure 9 for Figure 8 Enlarged view at point E in the middle;

[0035] Figure 10 This is a structural diagram of the moving part in Example 1;

[0036] Figure 11 This is a cross-sectional view perpendicular to the axial direction when the track assembly is not installed on the ground brush in Embodiment 1;

[0037] Figure 12 This is a cross-sectional view perpendicular to the axial direction when the track assembly is not installed on the ground brush and three driven rollers are provided on the second support member in Embodiment 1.

[0038] Figure 13 A cross-sectional view of the track support along the axial direction when a driven roller is provided on the second support member in Embodiment 1;

[0039] Figure 14 This is a structural diagram of the track support in Embodiment 3 when the latch disengages from the first support member;

[0040] Figure 15 This is a structural diagram of the latch in Example 3;

[0041] Figure 16 This is a structural diagram of the latch and the first support member when they are engaged in the third embodiment.

[0042] In the diagram, 10 - surface cleaning device.

[0043] 100-Floor brush, 110-Floor brush body, 111-Frame plate, 111A-Positioning part, 1111-Support ring, 1112-Protruding post, 1113-Positioning hole, 1114-Hinged structure, 1115-Limiting recess, 112-Suction port, 113-Suction channel, 114-Water connector, 120-Cover, 121-Snap-on structure, 130-Motor, 131-Power output head, 140-Scraper part, 150-Floor scraper

[0044] 200- Track assembly, 210- Annular cleaning cloth, 220- Track bracket, 201- Driven roller, 202- Driven roller, 202A- Roller unit, 2021- Central shaft, 2022- Roller body, 221- First support member, 2211- Support hole, 2212- Soft rubber sleeve, 2213- Transmission hole, 222- Second support member, 2221- Longitudinal clearance area, 223- Frame, 2231- Boss, 2232- Support platform, 2233- Limiting part, 2233A- Limiting groove, 2233B- Limiting plate, 2233C- Limiting buckle, 2234- Limiting post, 2235- Fixed Position post, 2236- Rib, 224- Moving part, 224A- Mounting end, 224B- Support end, 224C- Rolling part, 2241- Mounting structure, 2241A- Frame, 2241B- Corner groove, 2241C- Slot, 2242- Support block, 2243- Roller, 225- Side plate, 2251- Support head, 2252- Support shaft, 2253- Groove, 2254- Limiting platform, 226- Elastic part, 2261- Spring, 227- Locking buckle, 2271- Locking groove, 2272- Hinge part, 2273- Hinge post, 2274- Locking tongue, 2275- Soft rubber sheet

[0045] 300 - Body, 310 - Handle

[0046] 400-hinged joint,

[0047] 500-Control Module

[0048] 600 - Sewage suction assembly, 610 - Blower, 620 - Sewage tank. Detailed Implementation

[0049] 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.

[0050] This utility model provides a tracked surface cleaning device, including a floor brush and a track assembly. The track assembly includes a track bracket and a detachably installable annular cleaning cloth. The track bracket includes a frame, a first support member and a second support member for supporting the annular cleaning cloth, and a movable member disposed between the first support member and the frame. The movable member has an installation end and a support end. The movable member is movably installed on the frame or the first support member through the installation end. The support end of the movable member abuts against the inner surface of the annular cleaning cloth when the track assembly is installed on the floor brush.

[0051] When the track assembly is installed on the floor brush, the support end of the movable part abuts against the inner surface of the annular cleaning cloth. This support end supports the annular cleaning cloth in the suspended area between the two supports, and also helps to tension the cloth, thereby increasing its adhesion to the ground and thus enhancing the wiping force and cleaning effect. Furthermore, the increased tension on the cloth by the supported end increases the friction between it and the supports, ensuring smooth rotation by the support (which acts as the drive roller) and preventing slippage.

[0052] 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, handheld vacuum cleaner, etc.; 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 track assembly to clean the ground.

[0053] Example 1

[0054] Combination Figures 1 to 11 Embodiment 1 provides a handheld tracked surface cleaning device 10, including a body 300, a floor brush 100, and a track assembly 200. The floor brush 100 includes a brush body 110 and a cover 120 detachably mounted on the front of the brush body 110. The lower end of the body 300 is pivotally connected to the rear of the brush body 110 via a hinge joint 400. The upper end of the body 300 has a handle 310 for the user to hold. The body 300 can swing back and forth within a certain angle range relative to the brush 100, and can also rotate to the left or right relative to the brush 100 by a certain angle. The track assembly 200 is detachably mounted on the front of the brush body 110, and the cover 120 mounted on the brush body 110 covers the track assembly 200.

[0055] Combination Figures 3 to 11In this embodiment, the track assembly 200 includes a track bracket 220 and an annular cleaning cloth 210. The track bracket 220 includes a frame 223, a first support member 221 and a second support member 222 for supporting the annular cleaning cloth 210, and a movable member 224 disposed between the first support member 221 and the frame 223. One end of the movable member 224 is an installation end 224A and the other end is a support end 224B. The installation end 224A is movably installed on the frame 223 or the first support member 221. The support end 224B of the movable member 224 abuts against the inner surface of the annular cleaning cloth 210 when the track assembly 200 is installed on the floor brush 100. The support end 224B of the movable component 224 supports the annular cleaning cloth 210 in the suspended area between the two supports. The support end 224B assists in tensioning the annular cleaning cloth 210, thereby increasing the adhesion between the annular cleaning cloth 210 and the ground, thus increasing the wiping force of the annular cleaning cloth 210 and improving the cleaning effect. In addition, the annular cleaning cloth 210, further tensioned by the support end 224B, increases the friction between itself and the supports, thereby ensuring that the annular cleaning cloth 210 can be smoothly driven to rotate by the supports, which act as the drive roller, and preventing the annular cleaning cloth 210 from slipping.

[0056] In this embodiment, optionally, the track support 220 further includes a side plate 225 at one end. The first support member 221, the second support member 222, and the frame 223 each have one end stable relative to the side plate 225 and the other end suspended. The suspended ends of the first support member 221 and the second support member 222 can be far apart or close together. Specifically, the first support member 221, the frame 223, and the second support member 222 are arranged sequentially from back to front. The first support member 221, located at the rear, serves as the driving roller 201, and the second support member 222, located at the front, serves as the driven roller 202. Figure 6 , Figure 8The side plate 225 is basically perpendicular to the frame 223. The side plate 225 has a support head 2251 on the side facing the first support member 221. The support head 2251 has a support shaft 2252 that can rotate around its own central axis through a bearing at its center. The first support member 221 is hollow and has a support hole 2211 that cooperates with the support shaft 2252 at the end facing the side plate 225. The support head 2251 is inserted into the end of the first support member 221 and the support shaft 2252 is inserted into the support hole 2211. One end of the first support member 221 is rotatably connected to the side plate 225 through the support head 2251 and the support shaft 2252, so that one end of the first support member 221 is radially and axially limited relative to the side plate 225, thereby making one end of the first support member 221 stable relative to the side plate 225. The side plate 225 has a groove 2253 on the same side as the support head 2251. The end of the frame 223 has a boss 2231 that protrudes towards the side plate 225 and mates with the groove 2253. The boss 2231 is inserted into the groove 2253 and locked to the side plate 225 with screws, so that one end of the frame 223 is fixedly connected to the side plate 225, thereby keeping one end of the frame 223 stable relative to the side plate 225. The other end of the first support member 221 is not connected to the other end of the frame 223, so that the other end of the first support member 221 and the other end of the frame 223 are both suspended. The second support member 222 is rotatably mounted on the front side of the frame 223. Preferably, the second support member 222 includes several driven rollers 202 that are spaced apart in the longitudinal direction. Each driven roller 202 includes several roller units 202A that are spaced apart in the axial direction. Each roller unit 202A includes a central shaft 2021 and a roller body 2022 sleeved outside the central shaft 2021. The front side of the frame 223 is provided with several support platforms 2232 that are spaced apart in the length direction and protrude forward. Two adjacent support platforms 2232 are provided with grooves on their opposing side walls that mate with the ends of the central shaft 2021. The two axial ends of the central shaft 2021 are mounted on the front side of the frame 223 through the mate with the grooves. The roller body 2022 can rotate relative to the central shaft 2021. Both ends of the driven roller 202 are connected to the frame 223, so that one end of the second support member 222 remains stable relative to the side plate 225 with the frame 223, while the other end is suspended with the frame 223. When an opposing force is applied to the suspended ends of the first support member 221 and the frame 223, the suspended ends of the first support member 221 and the second support member 222 can approach each other. At this time, the track bracket 220 can loosen the annular cleaning cloth 210, making it convenient to remove the annular cleaning cloth 210 from the track bracket 220 or to put the annular cleaning cloth 210 on the track bracket 220. When an opposing force is applied to the suspended ends of the first support member 221 and the frame 223, the suspended ends of the first support member 221 and the second support member 222 can move away from each other. At this time, the track bracket 220 can tighten the annular cleaning cloth 210.In an alternative embodiment, the driven roller 202 can also be a single rotating shaft. In this case, the driven roller 202 can be rotatably mounted on the front side of the frame 223 via bearings. Optionally, the driven roller 202 can be multiple rotating shafts arranged longitudinally. For example, the driven roller 202 can be two rotating shafts arranged longitudinally, with the two rotating shafts spaced apart and the center distance between the two rotating shafts being less than or equal to the diameter of the driving roller 201. Of course, the driven roller 202 can also be configured with other reasonable structures to meet the requirements of supporting the annular cleaning cloth 210. The specific structure of the driven roller 202 is not limited here.

[0057] Combination Figure 2 In this embodiment, in order to ensure that the track support 220 can maintain structural stability and tighten the annular cleaning cloth 210 when the track assembly 200 is installed on the floor brush 100, the floor brush body 110 is provided with a frame plate 111 opposite to the side plate 225. The frame plate 111 is provided with a positioning part 111A corresponding to the track support 220 on the side facing the center of the floor brush 100. When the track assembly 200 is installed on the floor brush 100, the suspended end of the track support 220 cooperates with the positioning part 111A to support the suspended end of the track support 220, and through cooperation with the positioning part 111A, the first support member 221 and the second support member 222 are in a state of being far away from each other and tightening the annular cleaning cloth 210. Specifically, the side plate 225 has a support ring 1111 rotatably mounted via a bearing and a protruding post 1112 protruding towards the center of the floor brush 100 on the side facing the center of the floor brush 100. The support ring 1111 cooperates with the first support member 221, and the protruding post 1112 has a positioning hole 1113. The support ring 1111 and the protruding post 112 constitute a positioning part 111A. The frame 223 has a positioning post 2235 protruding towards the frame plate 111 at the suspended end, and the positioning post 2235 cooperates with the positioning hole 1113 on the protruding post 112. When the track assembly 200 is installed on the floor brush 100, the support ring 111 is inserted into the suspended end of the first support member 221, positioning the suspended end of the first support member 221. The positioning pin 2235 is inserted into the positioning hole 1113, positioning the suspended end of the frame 223, thereby positioning the suspended end of the second support member 222 as well. Both ends of the two supports are in a positioned state, thus maintaining a relatively fixed position for the two supports, allowing the track bracket 220 to stably support the annular cleaning cloth 210. As an alternative to this embodiment, the positioning pin 2235 that cooperates with the protrusion 1112 can also be provided at the end of the second support member 222.

[0058] Furthermore, in this embodiment, the motor 130 for driving the active roller 201 is hinged to the side of the frame plate 111 facing the center of the floor brush 100 via a hinge structure 1114, and the support ring 111 is sleeved on the outer periphery of the hinge structure 1114 via a bearing. The motor 130 has a power output head 131 at its output end facing away from the frame plate 111, and the active roller 201 has a transmission hole 2213 that cooperates with the power output head 131. When the track assembly 200 is installed on the floor brush 100, the motor 130 is housed inside the first support member 221. The working motor 130 drives the first support member 221, which is the active roller 201, to rotate around its own central axis 2021 through the cooperation of the power output head 131 and the transmission hole 2213. The rotating active roller 201 drives the annular cleaning cloth 210 to rotate so that the annular cleaning cloth 210 can wipe the ground. The second support member 222, which is the driven roller 202, can be driven to rotate by the rotating annular cleaning cloth 210.

[0059] Combination Figure 11 In this embodiment, the second support member 222 is provided with two longitudinally spaced driven rollers 202 located on the front side of the frame 223. The outer diameter of the driven rollers 202 is smaller than that of the driving rollers 201. By using the driven rollers 202 with smaller outer diameters, the corner radius R of the bottom front end of the annular cleaning cloth 210 is greatly reduced, allowing the annular cleaning cloth 210 to effectively clean the floor at the corner. Optionally, the two longitudinally arranged driven rollers 202 can be located on the same straight line in the vertical direction, or the projections of the two longitudinally arranged driven rollers 202 in the vertical direction can not completely overlap. For example, the driven roller 202 located above the driven roller 202 is positioned further back than the driven roller 202 located below, that is, the distribution of the two driven rollers 202 at the bottom front and top rear causes the front side of the annular cleaning cloth 210 to be tilted backward from bottom to top, thereby forming a certain clearance space on the front side of the annular cleaning cloth 210. This allows the bottom edge of the front side of the annular cleaning cloth 210 to move as close to the wall as possible when cleaning the floor, which is beneficial to improving the cleaning effect. Furthermore, since the upper and lower driven rollers 202 are longitudinally spaced at the front of the frame 223, a longitudinal clearance area 2221 with a certain height H1 is formed between the upper and lower driven rollers 202. This longitudinal clearance area 2221 can provide appropriate flexible deformation space for the annular cleaning cloth 210. When the movement of the floor brush 100 causes the front side of the annular cleaning cloth 210 to collide with other objects such as the edge of a cabinet, the annular cleaning cloth 210 subjected to force on the front side can be concave inward toward the longitudinal clearance area 2221 to avoid being torn due to the impact, thus ensuring the service life of the annular cleaning cloth 210. On the other hand, since the front side of the track assembly 200 presents an inclined surface with gradually increasing thickness, when the floor brush 100 cleans the ground, the front end of the track assembly 200 can enter low areas and corner areas for cleaning.

[0060] In this embodiment, to improve the driving effect of the drive roller 201 on the annular cleaning cloth 210, the maximum longitudinal distance H2 between the upper and lower driven rollers 202 is preferably smaller than the diameter D of the drive roller 201. This increases the central angle α of the circumferential contact portion between the annular cleaning cloth 210 and the drive roller 201, thereby increasing the contact area between the annular cleaning cloth 210 and the drive roller 201. This, in turn, increases the force exerted by the rotating drive roller 201 on the annular cleaning cloth 210, preventing the annular cleaning cloth 210 from slipping. Additionally, the drive roller 201 is fitted with several axially spaced soft rubber sleeves 2212 on its outer periphery. These soft rubber sleeves 2212 increase the friction between the drive roller 201 and the annular cleaning cloth 210, which also improves the driving effect of the drive roller 201 on the annular cleaning cloth 210.

[0061] Combination Figure 6 , Figure 9 , Figure 10In this embodiment, the mounting end 224A of the movable component 224 is preferably movably mounted on the rear side of the frame 223, and the supporting end 224B of the movable component 224 faces the first supporting component 221. Preferably, the movable component 224 has a mounting structure 2241 at the mounting end 224A, and the frame 223 has a limiting part 2233. The mounting structure 2241 and the limiting part 2233 are movably mounted through an elastic member 226. Specifically, the frame 223 has a limiting groove 2233A with a rearward opening, and limiting plates 2233B are provided on the left and right sides of the limiting groove 2233A. The rear end of the limiting plate 2233B has a limiting buckle 2233C protruding towards the center of the limiting groove 2233A. The limiting groove 2233A, the limiting plate 2233B, and the limiting buckle 2233C constitute the limiting part 2233. Correspondingly, the mounting structure 2241 of the mounting end 224A includes a frame 2241A that is wider at the front and narrower at the back, and corner grooves 2241B formed on the left and right sides of the frame 2241A. The frame 2241A is inserted into the limiting groove 2233A, and the limiting buckle 2233C at the rear end of the limiting plate 2233B is located at the corner groove 2241B. The cooperation between the limiting buckle 2233C and the corner groove 2241B limits the movable part 224, preventing the movable part 224 from detaching from the frame 223. The elastic element 226 is preferably a spring 2261. The spring 2261 is in a compressed state with one end abutting against the movable part 224 and the other end positioned. The compressed spring 2261 pushes the movable part 224 backward, so that the movable part 224 can elastically abut against the annular cleaning cloth 210. To ensure stable installation of the spring 2261, the frame 2241A is provided with a slot 2241C for inserting the spring 2261. The bracket 223 has a rearwardly protruding limiting post 2234 within the limiting groove 2233A. The rear end of the spring 2261 is inserted into the slot 2241C and abuts against the frame 2241A, while the front end of the spring 2261 is sleeved on the outside of the limiting post 2234 and abuts against the bracket 223. Only one spring 2261 may be provided, or two, three, or other reasonable quantities may be provided at intervals along the length direction. In other embodiments of this invention, the elastic element 226 may also be other components with elastic deformation properties.

[0062] In this embodiment, to reduce the friction between the support end 224B of the movable member 224 and the annular cleaning cloth 210 when they come into contact, the movable member 224 is provided with at least one rolling element 224C on each of the upper and lower sides of the support end 224B. When the track assembly 200 is installed on the floor brush 100, the rolling elements 224C on the upper and lower sides respectively abut against the upper and lower sides of the annular cleaning cloth 210. The rolling elements 224C greatly reduce the friction between the support end 224B and the annular cleaning cloth 210 when they come into contact, avoiding the situation where the rotation of the annular cleaning cloth 210 is hindered by the contact of the support end 224B with the annular cleaning cloth 210, and also reducing the wear of the annular cleaning cloth 210 caused by the contact of the support end 224B. In addition, the rolling elements 224C on the upper and lower sides of the support end 224B can further improve the tension of the annular cleaning cloth 210, thereby further improving the adhesion between the annular cleaning cloth 210 and the ground. Furthermore, the contact between the rolling elements 224C on the upper and lower sides and the upper and lower sides of the annular cleaning cloth 210 ensures that both the upper and lower sides of the support end 224B are subjected to force, improving the force balance on both sides of the support end 224B and thus ensuring the structural stability of the movable element 224. Specifically, in this embodiment, the movable element 224 has a support block 2242 arranged approximately vertically on the support end 224B. The support block 2242 is fixed to the rear side of the frame 2241A. The rolling elements 224C are rollers 2243, which are rotatably mounted on the upper and lower ends of the support block 2242 via pins. In an alternative embodiment, the rolling elements 224C can also be small bearings or other components that meet the rolling contact requirements.

[0063] In this embodiment, a movable member 224 is provided, and a rolling element 224C is provided on each of the upper and lower sides of the movable member 224B. In order to allow the first support member 221 and the second support member 222, which are subjected to opposing forces, to come close enough to release the annular cleaning cloth 210, the movable member 224 is located approximately in the middle of the track bracket 220, so that the movable member 224 has a certain distance from the side plate 225, thereby reducing the obstruction caused by the movable member 224 to the two close-to-close support members. In an alternative embodiment, the movable component 224 can also be arranged in other reasonable quantities such as two or three along the length direction of the track support 220. The number of movable components 224 is not restricted too much, but a certain distance must be maintained between the movable component 224 and the side plate 225. In addition, the rolling component 224C of the support end 224B can also be arranged in other reasonable quantities such as two or three along the length direction on both the upper and lower sides. The number of rolling components 224C on the upper side of the support end 224B and the number of rolling components 224C on the lower side of the support end 224B can be the same or different. The number of rolling components 224C on the upper and lower sides of the support end 224B is not restricted too much.

[0064] Combination Figure 11 When the first support member 221 and the frame 223 of the track bracket 220 are not engaged with the positioning part 111A, the suspended ends of the two support members are generally close to each other. At this time, the support end 224B of the movable member 224 abuts against the first support member 221. Specifically, the rolling member 224C of the support end 224B abuts against the first support member 221. The abutment of the support end 224B provides a certain positioning support for the first support member 221, which can improve the structural stability of the frame 223 and the first support member 221 and prevent the first support member 221 from undergoing large deformation.

[0065] When the track assembly 200 with the annular cleaning cloth 210 is not installed on the ground brush 100, the annular cleaning cloth 210 is in a relaxed state because the suspended ends of the two support members are relatively close. At this time, the support end 224B of the movable member 224 is separated from the annular cleaning cloth 210, that is, the rolling part 224C of the support end 224B does not abut against the annular cleaning cloth 210, thus avoiding interference with the installation and removal of the annular cleaning cloth 210 caused by the abutment of the support end 224B, and reasonably reducing the difficulty of installing and removing the annular cleaning cloth 210. In addition, the abutment of the support end 224B can also prevent the annular cleaning cloth 210 from easily falling off the track bracket 220 because the suspended ends of the two support members are close to each other under the action of the annular cleaning cloth 210.

[0066] To further improve the support effect of the annular cleaning cloth 210, in this embodiment, the top and bottom sides of the frame 223 are provided with a plurality of ribs 2236 spaced apart along the length direction. The ribs 2236 can abut against and support the annular cleaning cloth 210 on the upper and lower sides. In an alternative embodiment, the ribs 2236 can be provided only on the top or bottom side of the frame 223, or the ribs 2236 can be omitted.

[0067] To ensure the stability of the track assembly 200 when installed on the floor brush 100, the side plate 225 is provided with a limiting platform 2254 protruding towards the floor brush body 110. The floor brush body 110 has a limiting recess 1115 on its side wall facing the side plate 225, corresponding to the limiting platform 2254. When the track assembly 200 is installed on the floor brush 100, the limiting platform 2254 is inserted into the limiting recess 1115, thus limiting the track assembly 200. Alternatively, a magnetic attraction structure can be provided between the side plate 225 and the side wall of the floor brush body 110, with a magnet on one side and an iron part on the other. When the track assembly 200 is installed on the floor brush 100, the magnet and the iron part attract each other, also limiting the track assembly 200. In an alternative embodiment, other mating structures that limit the track assembly 200 can be provided between the side plate 225 and the ground brush body 110 to meet the requirement of preventing the track assembly 200 from detaching from the ground brush 100.

[0068] In this embodiment, the cover 120 is provided with a snap-fit ​​structure 121. The cover 120 is detachably installed on the floor brush body 110 via the snap-fit ​​structure 121. The specific structure of the snap-fit ​​structure 121 can be referred to the prior art, and will not be described in detail here. The cover 120 can adopt a double-layer structure with upper and lower cover bodies snapping together, or it can adopt a single-layer structure.

[0069] In this embodiment, the surface cleaning device 10 also includes a liquid supply component for supplying liquid to the annular cleaning cloth 210 of the track assembly 200. The specific structure of the liquid supply component can be referred to the prior art, and will not be described in detail here.

[0070] Combination Figure 4 In this embodiment, the cover 120 and the brush body 110 cooperate to form a roller brush cavity adapted to the track assembly 200. A suction port 112 is provided at the center of the left and right sides of the brush body 110, and the suction port 112 is located behind and communicates with the roller brush cavity. Figure 1 The surface cleaning device 10 of this embodiment also includes a suction assembly 600, which includes a blower 610 and a wastewater tank 620. The wastewater tank 620 is detachably mounted on the body 300. A suction channel 113 for connecting the suction port 112 and the wastewater tank 620 is provided between the lower end of the body 300 and the floor brush body 110. The specific structure of the wastewater tank 620 can refer to the prior art and will not be described in detail here. The blower 610 can be located at the upper end of the body 300, 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 assembly is detachably mounted on the body 300. The suction power source assembly detached from the body 300 can be connected to a vacuuming accessory for dry vacuuming. When the blower 610 is working, it provides suction to create a negative pressure inside the sewage tank 620, forming a suction airflow from the suction port 112 into the sewage tank 620. Dirt at the suction port 112 can flow into the sewage tank 620 along with the suction airflow, thus collecting the dirt. A control module 500 is installed inside the machine body 300, and electrical components such as the motor 130 and the blower 610 are controlled by the control module 500.

[0071] In this embodiment, the front side of the floor brush body 110 is provided with a scraping member 140 for scraping and squeezing the annular cleaning cloth 210. The scraping member 140 extends in the left-right direction and can adopt a single scraping strip structure, a single comb tooth structure, or a combination of scraping strip and comb tooth structure. The specific structure of the scraping member 140 is not limited here. In addition, a floor scraper 150 is also provided at the lower edge of the front side of the floor brush body 110. The floor scraper 150 extends axially in the left-right direction, and the leading edge of the floor scraper 150 extends downward and can contact the ground. The water distribution component 530, the scraper component 140, the suction port 112, and the floor scraper 150 are distributed sequentially from top to bottom. The water distribution component 530 and the scraper component 140 can be installed together at the bottom of the cover 120, or together at the front of the floor brush body 110, or they can be installed separately with the water distribution component 530 at the bottom of the cover 120 and the scraper component 140 at the front of the floor brush body 110. There are no major restrictions on the installation position of the water distribution component 530 and the scraper component 140.

[0072] When cleaning is required, an opposing force is applied to the first support member 221 and the frame 223 to bring the first support member 221 and the second support member 222 closer to each other. Then, the annular cleaning cloth 210 is fitted onto the track bracket 220, and the track assembly 200 is installed on the floor brush 100. The support ring 111 is inserted into the first support member 221 and the positioning post 2235 is inserted into the positioning hole 1113. The positioning part 111A on the frame plate 111 allows the first support member 221 and the second support member 222 to be stably held in the state of opening the annular cleaning cloth 210. The rolling parts 224C on the upper and lower sides of the support end 224B abut against the upper and lower sides of the annular cleaning cloth 210, respectively. When the device is working, the liquid supply component supplies liquid to the annular cleaning cloth 210, causing the annular cleaning cloth 210 to absorb and wet the liquid. The motor 130 drives the annular cleaning cloth 210 to rotate through the first support member 221, which serves as the active roller 201. The rotating annular cleaning cloth 210 wipes the ground. The blower 610 provides suction to form a suction airflow from the suction port 112 to the sewage tank 620. The scraping member 140 scrapes and squeezes the annular cleaning cloth 210, and the dirt that is scraped off flows into the sewage tank 620 along with the suction airflow.

[0073] When the annular cleaning cloth 210 needs to be replaced or manually cleaned, remove the track assembly 200 from the ground brush 100, then apply opposing forces to the first support member 221 and the frame 223 to bring the first support member 221 and the second support member 222 closer together to loosen the annular cleaning cloth 210, and then remove the annular cleaning cloth 210 from the track bracket 220.

[0074] Combination Figure 12In an alternative embodiment, the second support member 222 may also be provided with three driven rollers 202, which are longitudinally spaced on the front side of the frame 223. The longitudinal distance H3 between the uppermost and lowermost driven rollers 202 is smaller than the outer diameter D of the drive roller 201. Furthermore, the middle driven roller and the lowermost driven roller are longitudinally spaced apart, with a longitudinal gap area 2221 between them; the middle driven roller and the uppermost driven roller may be longitudinally spaced apart to form a longitudinal gap area, or they may slightly overlap in the longitudinal direction without forming a longitudinal gap area. The three driven rollers 202 gradually move backward from bottom to top, causing the front side of the annular cleaning cloth 210 to gradually tilt backward from bottom to top.

[0075] Combination Figure 13 In an alternative embodiment, the second support member 222 may also consist of only one roller. In this case, the diameter of the second support member 222 may be less than or equal to the diameter of the first support member 221. When the second support member 222 consists of only one roller, the first support member 221 is preferably used as the driving roller, and the second support member 222 is preferably used as the driven roller. Of course, the second support member 222 may also be used as the driving roller, and the first support member 221 may be used as the driven roller.

[0076] In an alternative embodiment, the motor for driving the drive roller 201 can also be located inside the brush body. In this case, a transmission structure is provided between the power output end of the motor and the drive roller 201, and the motor drives the drive roller 201 to rotate through the transmission structure.

[0077] Example 2

[0078] In this embodiment, the mounting end of the movable component is mounted on the first support member in a way that allows it to move back and forth via a support structure and an elastic member. The support end of the movable component faces the frame. When the track assembly is not installed on the floor brush, the rolling element at the support end abuts against the frame. When the track assembly is installed on the floor brush, the rolling element at the support end abuts against the annular cleaning cloth.

[0079] Furthermore, in this embodiment, the second support member located on the front side of the frame is preferably an active roller, and the second support member located on the rear side of the frame is preferably a driven roller. The first support member has a fixed part and a rotating part. The mounting end of the movable part is mounted on the fixed part in a way that allows it to move back and forth through an elastic member. The rotating part avoids the movable part and is rotatably sleeved on the outer periphery of the fixed part so that the rotating part can be driven to rotate by the annular cleaning cloth.

[0080] The other structures of Embodiment 2 are the same as those of Embodiment 1, and will not be described in detail here.

[0081] Example 3

[0082] Combination Figure 14 , Figure 15 , Figure 16 In this embodiment, the suspended end of the track support 220 is hinged with a latch 227, and the latch 227 is provided with a locking groove 2271 that cooperates with the first support member 221 or the second support member 222.

[0083] In one possible implementation of this embodiment, the latch 227 is hinged to the suspended end of the frame 223. When the user needs to assemble or disassemble the ring-shaped cleaning cloth, after applying a force towards the frame 223 and the first support member 221 to bring them closer, the latch 227 can be rotated to engage the edge of the first support member 221 with the locking groove 2271. The latch 227 keeps the first support member 221 and the frame 223 close together, thus reducing the difficulty for the user in assembling or disassembling the ring-shaped cleaning cloth. After disassembling the ring-shaped cleaning cloth, the latch 227 is unlocked from the first support member 221, allowing the first support member 221 to be separated from the frame 223 again. The latch 227 can also pivot in another direction, such as... Figure 14 As shown, the limiting post 2235 located at the suspended end of the frame 223 is exposed, allowing the limiting post 2235 to smoothly engage with the positioning hole on the floor brush during installation. Preferably, in order to provide a pivotable latch 227 on the frame 223 and to ensure that the latch 227 does not obstruct the installation of the track assembly on the floor brush, the length of the frame 223 and / or the second support member 222 is less than the length of the first support member 221 in the longitudinal direction of the track assembly. In this embodiment, the latch 227 generally includes a hinge portion 2272 and a locking tongue portion 2274. A hinge post 2273 is provided on the outer side of the hinge portion 2272, and a locking groove 2271 is formed between the locking tongue portion 2274 and the hinge portion 2272. To improve the friction between the latch 227 and the first support member 221, a soft rubber sheet 2275 is fixed on the side of the locking tongue portion 2274 facing the hinge portion 2272. In addition, the latch 227 should be positioned away from the positioning post 2235 to avoid interference from the positioning post 2235 on the rotation of the latch 227.

[0084] As an alternative to this embodiment, the latch 227 can also be hinged to the end of the second support member 222.

[0085] As another implementation of this embodiment, the latch 227 can also be pivotally mounted on the first support member 221. In this case, the latch 227 can be locked with the frame 223 or the second support member 222.

[0086] As another implementation of this embodiment, the latch 227 can also be pivotally disposed in the middle of the suspended end of the first support member 221, the second support member 222, or the frame 223.

[0087] The other structures in Embodiment 3 are the same as those in Embodiment 1, and will not be described in detail here.

[0088] Embodiment 3 can also be combined with Embodiment 2, that is, the mounting end 224A of the movable part 224 is movably mounted on the first support member 221 through the support structure and the elastic member 226, and the support end 224B of the movable part 224 is set towards the frame 223.

[0089] 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 tracked surface cleaning device, comprising a floor brush and a track assembly, the track assembly comprising a track support and a detachably mounted annular cleaning cloth, the track support comprising a frame, a first support member and a second support member for supporting the annular cleaning cloth, and a movable member disposed between the first support member and the frame, characterized in that, The movable component has an installation end and a support end. The movable component is installed on the frame or the first support component through the installation end. The support end of the movable component abuts against the inner surface of the annular cleaning cloth when the track assembly is installed on the ground brush.

2. The tracked surface cleaning device according to claim 1, characterized in that, The movable component has at least one rolling element on each of the upper and lower sides of the support end, and the rolling elements abut against the upper and lower sides of the annular cleaning cloth when the track assembly is installed on the floor brush.

3. The tracked surface cleaning device according to claim 1, characterized in that, The supporting end of the movable component is separated from the annular cleaning cloth when the track assembly is not installed on the floor brush.

4. The tracked surface cleaning device according to claim 3, characterized in that, The mounting end of the movable component is movably mounted on the frame, and the supporting end of the movable component abuts against the first supporting component when the track assembly is not mounted on the ground brush; or, the mounting end of the movable component is movably mounted on the first supporting component, and the supporting end of the movable component abuts against the frame when the track assembly is not mounted on the ground brush.

5. The tracked surface cleaning device according to claim 1, characterized in that, The first support member is a driving roller, and the second support member includes driven rollers that are longitudinally spaced on the frame, wherein the maximum longitudinal spacing between the driven rollers is less than the diameter of the driving roller.

6. The tracked surface cleaning device according to claim 5, characterized in that, The first support member, the frame, and the second support member are arranged sequentially from back to front. Each of the driven rollers is installed on the front side of the frame, and there is a longitudinal gap between any two driven rollers.

7. The tracked surface cleaning device according to claim 5, characterized in that, In the second support member, the driven roller located above is positioned rearward relative to the driven roller located below.

8. The tracked surface cleaning device according to claim 1, characterized in that, The track assembly also includes a side plate. The first support member, the second support member, and the frame are all stable at one end relative to the side plate and suspended at the other end. The suspended ends of the first support member and the suspended ends of the second support member can be far apart or close to each other.

9. The tracked surface cleaning device according to claim 8, characterized in that, The track support has a latch at its suspended end, which locks with the first support or the second support to keep the suspended ends of the first support and the second support close to each other.

10. The tracked surface cleaning device according to claim 1, characterized in that, The mounting end of the movable component is movably mounted on the frame. The frame is provided with a limiting part, and the mounting end is provided with a mounting structure that cooperates with the limiting part. The mounting structure and the limiting part are movably mounted together by an elastic element.

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