Surface cleaning device

Abstract

The utility model discloses a surface cleaning device which comprises a machine body and an edge cleaning unit, and the edge cleaning unit is movably arranged on the machine body so as to have an extending position where at least part of the edge cleaning unit extends out of the machine body and a reset position where at least part of the edge cleaning unit retracts into the machine body. The edge cleaning unit comprises an edge cleaning part, a motor driving the edge cleaning part to rotate and a wire electrically connected with the motor, the edge cleaning unit further comprises a winder, and the wire is wound around the winder so that when the edge cleaning unit is switched between the extending position and the reset position, the wire can be wound around the winder. The wire can be wound or released by the winder. The utility model provides a surface cleaning device so as to prevent a wire of an edge cleaning unit from being continuously bent at a specific part, reduce fatigue and breakage of the wire, achieve automatic winding of the wire, optimize the storage space of the wire and prevent the wire from being separated from an electric connection point of a control system due to the fact that the wire is hooked to an internal structure.

Description

Technical Field

[0001] The present application belongs to the field of surface cleaning devices, and in particular relates to a surface cleaning device. Background Art

[0002] Existing cleaning robots generally include a main cleaning part and an edge cleaning part located on the side of the cleaning robot. When the main cleaning part sweeps and mops the area to be cleaned, the edge cleaning part can sweep and mop the edge and corner areas adjacent to the area to be cleaned, so as to clean blind spots such as edges and corners that the main cleaning part cannot reach.

[0003] The edge cleaning member is movably mounted on the side of the cleaning robot so that it can approach blind spots such as corners, edges, or tables and chairs. When the cleaning robot reaches such locations for cleaning, the edge cleaning member is squeezed and moves toward the interior of the cleaning robot, causing the internal elastic tissue to deform. The edge cleaning member is partially stored inside the cleaning robot, while the exposed portion of the edge cleaning member is squeezed to fully contact the corners and other locations. The movability of the edge cleaning member on the cleaning robot can prevent the edge cleaning member from being over-extruded and damaged, and can also improve the environmental adaptability of the edge cleaning member, increase the cleaning range of the cleaning robot, and ensure cleaning power. To achieve intelligent cleaning robot, a motor is required to drive the cleaning roller inside the edge cleaning member to rotate. The motor is controlled by a control system to adjust the speed of the edge cleaning member to achieve cleaning operations. To power and control the motor, wires are required to connect the control system of the cleaning robot and the motor that drives the edge cleaning member. During routine cleaning operations, the edge cleaning parts need to frequently move relative to the cleaning robot to adapt to the edges of different objects for thorough cleaning. This also causes the internal wires to frequently move with the edge cleaning parts, and the wires are frequently bent at fixed positions, resulting in wire fatigue and damage.

[0004] In the prior art, wires are usually fixed using clips or screws, and redundant wires are arranged at the connection points or other locations. The redundant wires are stored in the cavity of the edge cleaning part so that the wires can follow the movement of the edge cleaning part. However, the above-mentioned arrangement of wires may lead to problems such as obstruction of wire connection and excessive damage. After the wires are fixed, they cannot change the direction of wire extension as the edge cleaning part moves, and can only be bent repeatedly at the fixed position. Specifically, the redundant wires need to be stored in the cavity, resulting in too much space inside the edge cleaning part being occupied by the wires. When the wires follow the movement of the edge cleaning part, the wires are easily hooked on the internal structural parts of the edge cleaning part during the process of being stretched from a relaxed state, resulting in obstruction of wire movement and disconnection of the wires from the electrical connection contacts of the motor and / or the cleaning robot, thereby causing the cleaning robot to malfunction. When the wire follows the movement of the edge cleaning part, the wire is frequently bent at the clips or screw fixings when the edge cleaning part moves on the cleaning robot, and hard contact between the wire and the clips or screw fixings will also occur. Frequent bending of the wire will cause internal damage, which will cause the wire to break over time, or damage the wire insulation layer to cause a short circuit, or the wire surface may be deformed and the wire cannot be smoothly pulled out during maintenance. In addition, the frequent hard contact between the wire and the clips and screw fixings will further deteriorate the use condition of the wire and reduce the service life of the wire. Utility Model Content

[0005] The present application provides a surface cleaning device to prevent the wires of the edge cleaning unit from being continuously bent at specific locations, reduce wire fatigue and damage, achieve automatic winding of the wires, optimize the storage space of the wires, and prevent the wires from hooking the internal structure and causing separation from the electrical connection points of the control system.

[0006] The technical solutions adopted in this application are:

[0007] The present application provides a surface cleaning device, comprising a body and an edge cleaning unit, wherein the edge cleaning unit is movably arranged on the body to have an extended position at least partially extending outside the body and a reset position at least partially retracted into the body, the edge cleaning unit comprises an edge cleaning member, a motor for driving the edge cleaning member to rotate, and a wire electrically connected to the motor, characterized in that the edge cleaning unit also includes a reel, the wire is wound around the reel, so that when the edge cleaning unit switches between the extended position and the reset position, the wire can be wound or released by the reel.

[0008] A surface cleaning device in the present application also includes the following additional technical features:

[0009] The reel includes a turntable and a reeling spring. The wire is wound around the turntable. The reeling spring is connected to the turntable to apply elastic force to the turntable to reel the wire.

[0010] The machine body is provided with a fixed bracket and a movable bracket movably provided on the fixed bracket, the edge cleaning unit is movably provided on the movable bracket, the movable bracket is provided with a first lead structure for limiting the wire, the wire has a first section located on one side of the first lead structure and a second section located on the other side of the first lead structure; when the wire is wound or released by the reel, the first section is subjected to the force of the second section, and the component of the force on the straight line where the first section is located is greater than the component of the force on the perpendicular line where the first section is located.

[0011] The first lead structure includes a plurality of guide portions, which are arranged at intervals along the direction of the wire to cooperate to form a lead groove for guiding and limiting the position of the wire;

[0012] Alternatively, the first lead structure includes a guide portion, and the guide portion is extended along the direction of the wire to form a lead groove.

[0013] The conductive wire has a connecting section connecting the first section and the second section. The connecting section passes through the lead groove. At least a portion of the lead groove extends in an arc shape.

[0014] The machine body is provided with a fixed bracket and a movable bracket movably provided on the fixed bracket. The edge cleaning unit also includes a positioning bracket for installing the motor. The positioning bracket can move laterally relative to the movable bracket. The positioning bracket is provided with a second lead structure for limiting the wire.

[0015] The positioning bracket includes a main bracket and a linkage bracket arranged above the main bracket and slidingly matched with the movable bracket. The motor is arranged on the main bracket, and the second lead structure is arranged on the linkage bracket.

[0016] The edge cleaning unit further includes a positioning bracket for mounting the motor, the positioning bracket being provided with a mounting cavity adapted for the motor and a cover plate for covering the mounting cavity, the cover plate being provided with a first wire hole for the wire to pass through;

[0017] The edge cleaning unit also includes a protective cover, which is arranged on the side of the cover plate facing away from the motor. The protective cover is provided with a second wire hole for the wire to pass through. The wire passes through the first wire hole and the second wire hole in sequence and is bent at the protective cover.

[0018] The reel is arranged on a side facing away from the output shaft of the motor.

[0019] The edge cleaning unit also includes a positioning bracket for installing the motor, the positioning bracket is provided with a mounting cavity adapted for the motor and a cover plate for covering the mounting cavity, the winder is located between the motor and the cover plate, and the motor, the winder and the cover plate are arranged in sequence along the axial direction of the motor.

[0020] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0021] 1. This application provides a retractor that allows the wire to be wound or released when the edge cleaning unit switches between its extended and reset positions. Because redundant wires are present when the edge cleaning unit is reset, the retractor winds up this redundant wire, enabling orderly wire storage. This prevents the wires from snagging on the internal structure of the edge cleaning unit or other adjacent components when the edge cleaning unit is extended, potentially causing the wires to become disconnected from the electrical connection points between the wires and the control system. Furthermore, the retractor prevents the wires from being continuously bent at specific locations, reducing fatigue damage. By retracting the wires, the retractor rewinds the wires when the edge cleaning unit is reset, preventing excessive space occupied by wire storage and improving space utilization within the edge cleaning unit. When the edge cleaning unit switches positions, the retractor maintains the wires in a taut state, improving the efficiency of power transmission. Furthermore, using the retractor to wind the wires allows for better alignment of the wire routing and optimizes product layout.

[0022] 2. As a preferred embodiment of the present application, a turntable and a winding spring are provided, the wire is wound around the turntable, and the winding spring is used to apply elastic force to the turntable to wind the wire. The winding spring can provide a stable winding force to ensure the stability of the winder during operation. The winding spring can be deformed when subjected to the rotation of the turntable and can return to its original shape, which helps to reduce structural fatigue and wear caused by long-term use. The use of a winding spring can simplify the installation process of the mechanical device and facilitate subsequent replacement and maintenance. The use of a winding spring helps to reduce energy consumption and maintain the integrity and functionality of the winder without the need for continuous power input.

[0023] 3. As a preferred embodiment of the present application, by providing a first lead structure, the position of the wire is limited, thereby reducing the obstruction to the smooth movement of the edge cleaning unit caused by the wire's own gravity when suspended over a long distance. When the edge cleaning unit resets or extends the wire, the wire will be relaxed and then tightened by the reel or continuously stretched. By providing the first lead structure, the wire can be smoothly wound or released by the reel, avoiding the wire from vibrating and hooking or affecting the internal structure when the wire is wound or released by the reel. By providing the first lead structure, the force component of the first section on the straight line where the first section is located is greater than the force component on the perpendicular line where the first section is located, so that the first section is more affected by the force component on the straight line where the first section is located, thereby maintaining the force on the first section along the direction in which the wire is arranged, avoiding the first section from sagging or being overly tightened due to the large difference between the force direction of the first section and the direction in which the wire is arranged when the wire is wound or released.

[0024] Furthermore, by providing guides on the first lead structure, which are spaced apart along the conductor path or extended along the conductor path to form guide grooves, the contact area between the first lead structure and the conductor is increased. This facilitates adjustment of the force applied to the first section along the conductor path, enhancing the guiding function of the first lead structure when the edge cleaning unit is extended or reset. The guide grooves also provide sufficient adjustment space for the conductor, allowing space for the conductor to release impact forces when the edge cleaning unit is extended or reset. The guidance of the guide grooves ensures that the force applied to the first section remains along the conductor path, preventing the conductor from bending in the first lead structure.

[0025] Furthermore, by providing a connecting section connecting the first and second sections, the connecting section is disposed within the wire guide slot, and at least a portion of the wire guide slot extends in an arc shape, a redundant section of the wire is provided within the first wire guide structure. On the one hand, when the edge cleaning unit is extended or reset, the wire can be smoothly stretched or tightened under the guidance of the wire guide slot, thereby expanding the space in which the wire can be adjusted under force. On the other hand, the redundant amount of wire at this location is increased, ensuring a sufficient supply of wire during the extension or reset of the edge cleaning unit.

[0026] 4. As a preferred embodiment of the present application, the arrangement path of the wire is optimized by setting a second lead structure on the positioning bracket. After the wire passes through the second lead structure, the retractor can reel in or release the wire more smoothly during the lateral movement of the positioning bracket.

[0027] Furthermore, by setting the motor on the main bracket and the second lead structure on the linkage bracket, the distance between the second lead structure and the motor is increased, so that the wire has enough space to adjust its direction, avoiding the situation where force concentration on some parts of the wire due to the small distance causes the wire to twist.

[0028] 5. As a preferred embodiment of the present application, by setting up a mounting cavity for the motor, the internal structural layout of the edge cleaning unit is optimized and the space utilization rate is improved. By setting up a cover plate covering the mounting cavity, the motor operation process can be protected from interference. A protective cover is set on the cover plate, and the wire is bent at the protective cover. When the direction of the wire is adjusted, the degree of bending of the wire can be reduced under the protection of the protective cover. At the same time, the hard contact between the wire and the cover plate can be avoided, thereby protecting the wire from wear and tear and improving the service life of the wire.

[0029] 6. As a preferred embodiment of the present application, by arranging the reel on the side facing away from the motor output shaft, the internal structural layout of the edge cleaning unit is further optimized, the space utilization is improved, and the compact design of the edge cleaning unit is further realized. At the same time, arranging the reel on the side facing away from the motor output shaft can avoid interference between the wire and the output shaft of the motor during the winding or releasing process, thereby ensuring that the motor outputs power stably and the wire is stably wound or released by the reel.

[0030] Furthermore, by arranging the reel between the motor and the cover plate, the reel is closer to the motor, and the wires can be reeled in time to avoid the wires being retained in the installation cavity and affecting the operation of the motor. At the same time, the wires extending from the motor can more conveniently switch the arrangement direction of the wires after passing through the reel. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0032] Figure 1 This is a front view of a surface cleaning device according to one embodiment of the present application;

[0033] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0034] Figure 3 An exploded view of an edge cleaning unit according to one embodiment of the present application;

[0035] Figure 4 This is an axial side view of a surface cleaning device according to one embodiment of the present application.

[0036] Reference numerals:

[0037] 1. Body; 11. Fixed bracket; 12. Movable bracket; 121. Protruding structure; 1211. Elastic component; 122. Slide rail; 123. First lead structure; 1231. Guide portion;

[0038] 2. Edge cleaning unit; 21. Edge cleaning member; 22. Motor; 23. Wire; 231. First section; 232. Second section; 233. Connecting section; 24. Winder; 241. Turntable; 242. Winding spring; 243. Winder cover; 25. Guide groove; 26. Positioning bracket; 261. Second lead structure; 262. Main bracket; 263. Linkage bracket; 264. Cover; 2641. First wire hole; 27. Protective cover; 271. Second wire hole. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0040] The following description sets forth many specific details to facilitate a thorough understanding of the present application. However, the present application may also be implemented in other ways than those described herein, and therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features of each embodiment may be combined with each other unless there is a conflict.

[0041] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application.

[0042] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0044] like Figure 1 As shown, a surface cleaning device comprises a body 1 and an edge cleaning unit 2, wherein the edge cleaning unit 2 is movably arranged on the body 1 to have an extended position at least partially extending outside the body 1 and a reset position at least partially retracted into the body 1. Figure 3 As shown, the edge cleaning unit 2 includes an edge cleaning member 21, a motor 22 that drives the edge cleaning member 21 to rotate, and a wire 23 electrically connected to the motor 22. The edge cleaning unit 2 also includes a winder 24, and the wire 23 is wound on the winder 24 so that when the edge cleaning unit 2 switches between the extended position and the reset position, the wire 23 can be wound or released by the winder 24.

[0045] By providing a reel 24, the wire 23 can be wound or released by the reel 24 when the edge cleaning unit 2 switches between the extended position and the reset position. Because there will be redundant wire 23 when the edge cleaning unit 2 is reset, the reel 24 can wind up this redundant wire 23 to achieve orderly storage of the wire 23. This can prevent the wire 23 from hooking on the internal structure of the edge cleaning member 21 or other adjacent components when the edge cleaning unit 2 is extended, causing the electrical connection point between the wire 23 and the control system to be disconnected. At the same time, the reel 24 is used to wind up the wire 23, so that the wire 23 is prevented from being continuously bent at specific locations, reducing fatigue damage to the wire 23. The reel 24 is used to wind up the wire 23, and when the edge cleaning unit 2 is reset, the wire 23 is wound by the reel 24, avoiding excessive space occupied by the storage of the wire 23, thereby improving the space utilization of the edge cleaning unit 2. When the edge cleaning unit 2 switches positions, the wire 23 is kept tightened by the reel 24, improving the efficiency of power transmission of the wire 23. At the same time, winding the wire 23 by the reel 24 can better adjust the layout path of the wire 23 and optimize the product layout.

[0046] In this application, the structure of the reel can be any of the following embodiments:

[0047] Embodiment 1: This embodiment 1 is not shown in the accompanying drawings. The reel in this embodiment 1 includes a cylindrical disk and a rotating shaft. The wire is wound around the cylindrical disk. The cylindrical disk rotates around the rotating shaft. The cylindrical disk is provided with a protrusion, which is connected to the rotating shaft through a torsion spring. The torsion spring provides elastic force to reel in the wire.

[0048] Implementation method 2: Figure 3 As shown, the reel 24 includes a turntable 241 and a reel spring 242 . The turntable 241 can rotate in the reel 24 . The wire 23 is wound on the turntable 241 . The reel spring 242 is connected to the turntable 241 . The reel spring 241 applies elastic force to the turntable 242 to reel the wire 23 .

[0049] In the second embodiment, the turntable 241 is rotatably connected to the portion of the surface cleaning device for installing the turntable 241 through a rotating shaft. The winding spring 242 is a clockwork spring arranged in the accommodating cavity formed by the turntable 241. One end of the clockwork spring is fixed to the edge of the accommodating cavity, and the other end is connected to the rotating shaft.

[0050] As a preference, Figure 3 As shown, the winder 24 is also provided with a winder cover 243, the winder cover 243 is provided with a receiving groove or a protruding shaft that matches the outer contour of the turntable 241, the turntable 241 is provided with a receiving cavity, and the winding spring 242 is a clockwork spring placed in the receiving cavity, one end of the clockwork spring is connected to the edge of the receiving cavity, and the other end is fixedly connected to the winder cover 243.

[0051] By setting up a turntable 241 and a winding spring 242, the wire 23 is wound around the turntable 241, and the winding spring 242 is used to apply an elastic force to the turntable 241 to rewind the wire 23. The winding spring 242 can provide a stable winding force to ensure the stability of the reel 24 during operation. The winding spring 242 can be deformed when the turntable 241 rotates, and can return to its original shape, which helps to reduce structural fatigue and wear caused by long-term use. The use of the winding spring 242 can simplify the installation process of the mechanical device and facilitate subsequent replacement and maintenance. The use of the winding spring 242 helps to reduce energy consumption and maintain the integrity and function of the reel 24 without the need for continuous power input.

[0052] Those skilled in the art will know that the wire 23 can be wound around the turntable 241, or it can partially pass through the turntable 241 and then be wound around the turntable 241, further increasing the contact area between the wire 23 and the turntable 241, making it easier for the reel 24 to reel in or release the wire 23.

[0053] In the present application, the edge cleaning unit is movably arranged on the machine body in any of the following embodiments:

[0054] Embodiment 3: This embodiment 3 is not shown in the accompanying drawings. The edge cleaning unit in this embodiment 3 includes a positioning bracket for mounting a motor. The machine body is provided with a mounting bracket for mounting the positioning bracket. The positioning bracket is slidably assembled to the mounting bracket. A transverse elastic telescopic member and / or a vertical elastic telescopic member are provided between the positioning bracket and the mounting bracket. When the edge cleaning unit encounters an obstacle while traveling along the surface cleaning device, the edge cleaning unit can be laterally telescopic and / or vertically floating in response to the obstacle, thereby achieving adaptive adjustment of the edge cleaning unit. The transverse elastic telescopic member and the vertical elastic telescopic member may be, for example, a spring.

[0055] Implementation method 4: Figure 4 As shown, the body 1 is provided with a fixed bracket 11 and a movable bracket 12 movably arranged on the fixed bracket 11. The movable bracket 12 and the fixed bracket 11 can be matched with each other through a gear (not shown in the drawings) and a rack (not shown in the drawings), a guide part (not shown in the drawings) and a guide groove (not shown in the drawings), a hole shaft (not shown in the drawings), etc. to realize that the movable bracket 12 is movably arranged on the fixed bracket 11. The movable bracket 12 has a protruding structure 121, and the protruding structure 121 is provided with an elastic component 1211. The edge cleaning unit 2 has a receiving portion for accommodating the protruding structure 121, so that the edge cleaning unit 2 and the movable bracket 12 can be movably connected. In a preferred embodiment under this embodiment, one of the movable bracket 12 and the edge cleaning unit 2 is provided with a slide rail 122, and the other is provided with a guide groove 25 that cooperates with the slide rail 122, further ensuring the stability of the movement of the edge cleaning unit 2.

[0056] Embodiment 5: This embodiment 5 is not shown in the accompanying drawings. The body in this embodiment 5 is provided with a fixed bracket and a movable bracket movably arranged on the fixed bracket. The movable bracket and the fixed bracket can be matched with each other through gears and racks, guide parts and guide grooves, hole shafts, etc. to realize that the movable bracket is movably arranged on the fixed bracket. The edge cleaning unit has a protruding structure, the protruding structure is provided with an elastic component, and the movable bracket has a receiving portion for accommodating the protruding structure, so that the edge cleaning unit and the movable bracket can be movably connected.

[0057] Embodiment 6: This embodiment 6 is not shown in the accompanying drawings. In this embodiment 6, the machine body comprises a fixed bracket and a movable bracket movably mounted on the fixed bracket. The movable bracket and the fixed bracket can cooperate with each other through gears and racks, guide portions and guide grooves, and hole shafts, so that the movable bracket can be movably mounted on the fixed bracket. The movable bracket has a guide groove, in which an elastic member (spring, rubber, etc.) is disposed. The edge cleaning unit has a guide post that cooperates with the guide groove. The guide post is connected to the elastic member within the guide groove, thereby achieving a movable connection between the edge cleaning unit and the movable bracket.

[0058] When the edge cleaning unit 2 passes through obstacles, thresholds, etc. during the movement of the surface cleaning device, it may exceed the adaptive adjustment range of the edge cleaning unit 2 in the body 1. A driving mechanism (not shown in the drawings) can be set in the body 1. After exceeding the adjustment range of the edge cleaning unit 2, the corresponding switch is triggered. The control system actively drives and adjusts the edge cleaning unit 2 by controlling the driving mechanism, thereby expanding the adjustment range of the cleaning unit 2 and improving the adaptability of the cleaning device to the cleaning operation scene.

[0059] The above-mentioned fourth, fifth and sixth embodiments can further provide a first lead structure 123 on the movable bracket 12, such as Figure 2 As shown, the wire 23 has a first section 231 located on one side of the first lead structure 123 and a second section 232 located on the other side of the first lead structure 123. By providing the first lead structure 123, the wire 23 is limited in position, reducing the obstruction to the smooth movement of the edge cleaning unit 2 caused by the wire 23 hanging over a long distance and sagging due to its own gravity.

[0060] like Figure 2 As shown, the arrangement of the first segment 231 and the second segment 232 in the first lead structure 123 can be any one of the following embodiments:

[0061] Example 1: Figure 3 As shown, when the wire 23 is wound or released by the reel 24, as shown in FIG. Figure 2 As shown, the force exerted by the second segment 232 on the first segment 231 has a greater force component on the line on which the first segment 231 lies than a force component on the line perpendicular to the line on which the first segment 231 lies. As a preferred example of this embodiment, the angle α between the first segment 231 and the second segment 232 is set to 135° < α < 180°. This allows the force exerted by the second segment 232 on the first segment 231 to have a greater force component on the line on which the first segment 231 lies than a force component on the line perpendicular to the line on which the first segment 231 lies, thereby enabling the first segment 231 to be more effectively stressed along the arrangement direction of the conductors 23.

[0062] Specifically, the first section 231 is subjected to its own gravity and the force of the second section 232. The first lead structure 123 offsets part of the gravity of the first section 231. The force of the second section 232 generates a component force in the vertical direction and a component force in the linear direction. The component force in the linear direction is greater than the component force in the vertical direction, which can help the first section 231 overcome the other part of the gravity and the vertical component force, thereby keeping the first section 231 stressed along the arrangement direction of the wire 23, avoiding sagging or excessive tension of the first section 231 due to the large difference between the force direction and the arrangement direction of the wire 23.

[0063] Example 2: This example 2 is not shown in the accompanying drawings. In this example 2, the first and second sections are arranged at an obtuse angle α. Preferably, the angle α is in the range of 140° ≤ α ≤ 175°, and more preferably, in the range of 140° ≤ α ≤ 155°. This allows the first and second sections to better follow the movement of the edge cleaning unit under the guidance of the first lead structure. As the edge cleaning unit moves, the wire can be stably reeled or released by the reel.

[0064] In Embodiment 1 and Embodiment 2, the arrangement of the first lead structure may be any one of the following specific examples:

[0065] Specific example 1: This specific example 1 is not shown in the accompanying drawings. The first lead structure in this specific example 1 includes a plurality of guide parts, which are arranged at intervals along the direction of the wire to cooperate to form a lead groove for guiding and limiting the wire.

[0066] Specific example 2: such as Figure 2 As shown, the first lead structure 123 includes a guide portion 1231 , and the guide portion 1231 is extended along the direction of the wire 23 to form a lead groove.

[0067] By providing guide portions 1231 on the first lead structure 123, the guide portions 1231 are spaced apart along the direction of the conductor 23 or extend along the direction of the conductor 23 to form a guide groove, thereby increasing the contact area between the first lead structure 123 and the conductor 23. This makes it easier to adjust the force applied to the first section 231 along the direction of the conductor 23, enhancing the guiding function of the first lead structure 123 when the edge cleaning unit 2 is extended or reset. The guide groove also provides adjustment space for the conductor 23, allowing space to release the impact force applied to the conductor when the edge cleaning unit 2 is extended or reset. The guidance of the guide groove ensures that the force applied to the first section 231 remains along the direction of the conductor, and prevents the conductor 23 from bending in the first lead structure 123.

[0068] In the preferred examples under Specific Example 1 and Specific Example 2, as Figure 2 As shown, the wire 23 has a connecting section 233 connecting the first section 231 and the second section 232. The connecting section 233 passes through the lead groove. The lead groove at least partially extends in an arc shape. The arc-shaped extension of the lead groove can better fit the wire 23 and can also make part of the wire 23 redundant. Figure 1 As shown, the arc-shaped extension ensures that there is sufficient supply of wire 23 during the extension or reset process of the edge cleaning unit 2.

[0069] It is known to those skilled in the art that the guide slot may not have an arc-shaped extension, in which case the entire wire 23 is wound or released more quickly by the retractor 24. The specific shape of the guide portion 1231 is not limited in this application, and the guide portion 1231 may be circular, arc-shaped, square, or other shapes.

[0070] In one embodiment of the present application, Figure 4 As shown, the machine body 1 is provided with a fixed bracket 11 and a movable bracket 12 movably arranged on the fixed bracket 11. The movable bracket 12 and the fixed bracket 11 can be matched with each other through gears and racks, guide parts and guide grooves, hole shafts, etc. to realize the movable bracket 12 being movably arranged on the fixed bracket 11. Figure 4 As shown, the edge cleaning unit 2 also includes a positioning bracket 26 for installing the motor 22. One of the movable bracket 12 and the edge cleaning unit 2 is provided with a slide rail 122, and the other is provided with a guide groove 25 that cooperates with the slide rail 122 to realize the lateral movement of the positioning bracket 26 relative to the movable bracket 12. The positioning bracket 26 is provided with a second lead structure 261 for limiting the wire 23.

[0071] In this embodiment, if Figure 3 As shown, the arrangement of the second lead structure 261 and the motor 22 can be any one of the following embodiments:

[0072] Example 3: Figure 4 As shown, the positioning bracket 26 includes a main bracket 262 and a linkage bracket 263 provided above the main bracket 262 and slidingly matched with the movable bracket 12, as shown in FIG. Figure 3 As shown, the motor 22 is disposed on the main bracket 262 , and the second lead structure 261 is disposed on the linkage bracket 263 .

[0073] By setting the motor 22 on the main bracket 262 and the second lead structure 261 on the linkage bracket 263, the distance between the second lead structure 261 and the motor 22 is increased, so that the wire 23 has enough space to adjust its direction, avoiding the situation where the force on some parts of the wire 23 is concentrated due to the small distance, causing the wire 23 to twist.

[0074] Example 4: This example 4 is not shown in the accompanying drawings. The positioning bracket in this example 4 includes a main bracket and a linkage bracket arranged above the main bracket and slidingly cooperating with the movable bracket. The motor and the second lead structure are arranged on the main bracket.

[0075] In this embodiment, the setting method of the lateral movement of the positioning bracket 26 relative to the movable bracket 12 is not limited. It can be achieved by setting a slide rail 122 and a guide groove 25 on the edge cleaning unit 2 or the movable bracket 12, or by setting a guide groove to cooperate with a protruding part or through hole-axis cooperation.

[0076] In one embodiment of the present application, Figure 3 As shown, the edge cleaning unit 2 further includes a positioning bracket 26 for mounting the motor 22, the positioning bracket 26 is provided with a mounting cavity adapted to the motor 22 and a cover plate 264 for covering the mounting cavity, the cover plate 264 is provided with a first wire hole 2641 for the wire 23 to pass through; Figure 4 As shown, the edge cleaning unit 2 further includes a protective cover 27, which is arranged on the cover plate 264. Figure 3 As shown on the side facing away from the motor 22, Figure 4 As shown, the protective cover 27 is provided with a second wire hole 271 for the wire 23 to pass through. Figure 3 As shown, after the wire 23 passes through the first wire hole 2641, as shown in FIG. Figure 4 As shown, the wire 23 passes through the second wire hole 271 and is bent at the protective cover 27. The wire 23 is bent at the protective cover 27. When the direction of the wire 23 is adjusted, the bending degree of the wire 23 can be reduced under the protection of the protective cover 27. At the same time, the wire 23 can be prevented from hard contact with the cover plate 264, thereby protecting the wire 23 from wear and tear and improving the service life of the wire 23.

[0077] In the present application, the arrangement of the motor 22 and the reel 24 can be any one of the following embodiments:

[0078] Embodiment 7: This embodiment 7 is not shown in the drawings. In this embodiment 7, the retractor is arranged on the side facing the output shaft of the motor. This embodiment requires additional space to avoid the output shaft.

[0079] Implementation method eight: Figure 3 As shown, the reel 24 is arranged on the side facing away from the output shaft of the motor 22. This arrangement can effectively prevent the reel 24 from affecting the output power of the motor 22, optimize the internal structure layout of the edge cleaning unit 2, improve space utilization, and achieve a compact design of the edge cleaning unit 2.

[0080] In the eighth embodiment, the specific arrangement of the reel 24 can be any one of the following embodiments:

[0081] Example 5: Figure 3As shown, the edge cleaning unit 2 further includes a positioning bracket 26 for mounting the motor 22. The positioning bracket 26 is provided with a mounting cavity adapted for the motor 22 and a cover plate 264 for covering the mounting cavity. The reel 24 is located between the motor 22 and the cover plate 264. The motor 22, the reel 24, and the cover plate 264 are sequentially arranged along the axial direction of the motor 22. By arranging the reel 24 between the motor 22 and the cover plate 264, the reel 24 is closer to the motor 22, and the wire 23 can be reeled in time to prevent the wire 23 from being retained in the mounting cavity and affecting the operation of the motor 22. At the same time, the wire 23 extending from the motor 22 can be more conveniently switched in its arrangement direction after passing through the reel 24.

[0082] Example 6: This Example 6 is not shown in the accompanying drawings. The edge cleaning unit in this Example 6 also includes a positioning bracket for installing a motor. The positioning bracket is provided with an installation cavity adapted for the motor and a cover plate for covering the installation cavity. The winder is located outside the cover plate, and the motor, cover plate and winder are arranged in sequence along the axial direction of the motor.

[0083] In this application, there is no limitation on the design of the edge cleaning member 21 of the edge cleaning unit 2. Figure 1 As shown, the edge cleaning member 21 can be formed by two cleaning rollers and a mop to form a straight-line crawler brush or a cylindrical roller brush formed by a cleaning roller and a mop (not shown in the drawings), or it can be set as a disc-type cleaning member driven by a rotating shaft (not shown in the drawings), or it can be formed by three cleaning rollers and a mop to form a triangular crawler brush (not shown in the drawings).

[0084] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0085] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0086] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A surface cleaning device, comprising a body and an edge cleaning unit, wherein the edge cleaning unit is movably mounted on the body to have an extended position at least partially extending outside the body and a reset position at least partially retracted inside the body, the edge cleaning unit comprising an edge cleaning member, a motor for rotating the edge cleaning member, and a wire electrically connected to the motor, wherein: The edge cleaning unit further includes a reel, and the conductive wire is wound around the reel, so that when the edge cleaning unit switches between the extended position and the reset position, the conductive wire can be wound or released by the reel.

2. A surface cleaning device according to claim 1, characterized in that: The reel includes a turntable and a reeling spring. The wire is wound around the turntable. The reeling spring is connected to the turntable to apply elastic force to the turntable to reel the wire.

3. A surface cleaning device according to claim 1, characterized in that: The machine body is provided with a fixed bracket and a movable bracket movably provided on the fixed bracket, the edge cleaning unit is movably provided on the movable bracket, the movable bracket is provided with a first lead structure for limiting the wire, the wire has a first section located on one side of the first lead structure and a second section located on the other side of the first lead structure; when the wire is wound or released by the reel, the first section is subjected to the force of the second section, and the component of the force on the straight line where the first section is located is greater than the component of the force on the perpendicular line where the first section is located.

4. A surface cleaning device according to claim 3, characterized in that: The first lead structure includes a plurality of guide portions, which are arranged at intervals along the direction of the wire to cooperate to form a lead groove for guiding and limiting the position of the wire; Alternatively, the first lead structure includes a guide portion, and the guide portion is extended along the direction of the wire to form a lead groove.

5. A surface cleaning device according to claim 4, characterized in that: The conductive wire has a connecting section connecting the first section and the second section. The connecting section passes through the lead groove. At least a portion of the lead groove extends in an arc shape.

6. A surface cleaning device according to claim 1, characterized in that: The machine body is provided with a fixed bracket and a movable bracket movably provided on the fixed bracket. The edge cleaning unit also includes a positioning bracket for installing the motor. The positioning bracket can move laterally relative to the movable bracket. The positioning bracket is provided with a second lead structure for limiting the wire.

7. A surface cleaning device according to claim 6, characterized in that: The positioning bracket includes a main bracket and a linkage bracket arranged above the main bracket and slidingly matched with the movable bracket. The motor is arranged on the main bracket, and the second lead structure is arranged on the linkage bracket.

8. A surface cleaning device according to claim 1, characterized in that: The edge cleaning unit further includes a positioning bracket for mounting the motor, the positioning bracket being provided with a mounting cavity adapted for the motor and a cover plate for covering the mounting cavity, the cover plate being provided with a first wire hole for the wire to pass through; The edge cleaning unit also includes a protective cover, which is arranged on the side of the cover plate facing away from the motor. The protective cover is provided with a second wire hole for the wire to pass through. The wire passes through the first wire hole and the second wire hole in sequence and is bent at the protective cover.

9. A surface cleaning device according to claim 1, characterized in that: The reel is arranged on a side facing away from the output shaft of the motor.

10. A surface cleaning device according to claim 9, characterized in that: The edge cleaning unit also includes a positioning bracket for installing the motor, the positioning bracket is provided with a mounting cavity adapted for the motor and a cover plate for covering the mounting cavity, the winder is located between the motor and the cover plate, and the motor, the winder and the cover plate are arranged in sequence along the axial direction of the motor.

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