Floor brush of surface cleaning device

Abstract

The utility model discloses a floor brush of a surface cleaning device, and belongs to the technical field of cleaning appliances, the floor brush comprises a shell and a roller brush assembly detachably arranged on the shell, the roller brush assembly comprises a cleaning roller, a side plate and an end cover rotationally connected with one end of the cleaning roller, one end of the side plate is pivotally connected with the end cover, and the other end of the side plate is pivotally connected with the end cover. One end of the side plate is connected with the shell, the other end of the side plate is locked with a locking piece so that the cleaning roller can be detachably installed on the shell, an ejection piece is arranged in the shell, and at least part of the ejection piece stretches out to abut against the side plate so that the side plate can be pivoted to a deviation state relative to the end cover. One end of the side plate of the roller brush assembly can be separated from the side face of the shell under the action of the ejection piece and deflect towards the side away from the shell, so that an obvious separation gap is formed between the side plate and the shell, the side plate is conveniently held by a hand to disassemble the roller brush assembly, and the user experience is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of cleaning tools, and in particular relates to a floor brush for a surface cleaning device. Background Art

[0002] Common surface cleaning devices such as vacuum cleaners and floor scrubbers generally use floor brushes to clean the surface to be cleaned. The floor brush of the surface cleaning device includes a shell and a roller brush assembly disposed on the shell. The roller brush assembly rolls up dust, debris, hair, etc. on the surface to be cleaned, and then the negative pressure suction unit sucks such dirt into the cleaning device for temporary storage. During use, in order to form a better negative pressure effect around the roller brush, side plates and other structures are provided around the roller brush to wrap the roller brush. After long-term use, more impurities will be entangled on the roller brush, so the roller brush needs to be disassembled regularly to clean it in all directions.

[0003] The related art discloses a floor brush mechanism, including a main housing and a roller brush assembly, the roller brush assembly including a roller brush and a side cover connected to one end of the roller brush, the other end of the roller brush being detachably arranged on the main housing, one of the side cover and the main housing being provided with a lock, and the other of the two being provided with a lock seat, the side cover being locked or unlocked with the main housing by the snap-fitting of the lock and the lock seat, the arrangement of the lock and the lock seat in the technical solution results in no obvious separation gap between the side cover and the main housing after the side cover is separated from the main housing, making it inconvenient for the user to hold the side cover to remove the roller brush assembly. When the side cover switches from the locked state to the unlocked state, the technical solution disclosed in the patent document is to move the side cover in a direction away from the main housing, so that the user can hold one end of the side cover to remove the roller brush assembly from the main housing, a torsion spring is added between the main housing and the side cover, and the two ends of the torsion spring are respectively in contact with the main housing and the side cover, so as to apply a biasing force in a direction away from the main housing to the side cover, and push the side cover to rotate to a position that is obviously separated from the main housing. When the roller brush assembly is assembled to the main shell, the torsion spring exerts a force on the side cover, which indirectly acts on the lock or lock seat provided on the side cover, and generates a pulling force on the lock or lock seat provided on the side cover. The existence of this pulling force will hinder the unlocking operation of pressing the unlocking assembly to disengage the lock from the lock seat, resulting in the unlocking being blocked and a noticeable sense of stagnation during the disassembly process, which reduces the user's disassembly experience. In addition, during the disassembly of the roller brush assembly, although the torsion spring can push the side cover to a position that is clearly separated from the main shell, during the installation of the roller brush assembly, the existence of the torsion spring will also provide a relatively large resistance when the side cover is locked to the main shell, resulting in a strong sense of stagnation when the roller brush assembly is reassembled to the main shell, and a poor operating feel, which affects the user experience. In addition, there are many parts integrated in the floor brush mechanism itself, and each part has its specific installation position and space requirements. Therefore, the setting of the torsion spring not only increases the cost, but also the redundant space reserved for the torsion spring in the main shell itself is relatively small, resulting in the selection of the torsion spring in terms of its volume, model, etc., which affects the torque that the torsion spring can provide. When the torsion spring provides a small torque, the biasing force it can provide to the side cover is limited. If the biasing force is not enough to overcome the interaction force between the roller brush and the main shell, even if a torsion spring is added, the side cover cannot deflect to the expected angle, thereby affecting the user's grip. Utility Model Content

[0004] The present application provides a floor brush for a surface cleaning device to solve the technical problem that during the disassembly process of the roller brush assembly of the existing floor brush, the side plate of the roller brush assembly has a small deviation angle, which is not convenient for human hands to hold, resulting in inconvenient disassembly.

[0005] The technical solution adopted in this application is:

[0006] A floor brush for a surface cleaning device comprises a shell and a roller brush assembly detachably arranged on the shell, the roller brush assembly comprising a cleaning roller, a side plate and an end cap rotatably connected to one end of the cleaning roller, one end of the side plate is pivotally connected to the end cap so that the side plate has a pivot axis perpendicular to the rotation axis of the cleaning roller, the other end of the side plate is locked with a locking piece in the shell so that the cleaning roller can be detachably mounted on the shell, and an ejector is provided in the shell; at least part of the ejector extends out to abut against the side plate to unlock with the locking piece, and the side plate pivots to a deviated state relative to the end cap; or, when the locking piece is in an unlocked state, the ejector at least partly extends out to abut against the side plate, and the side plate pivots to a deviated state relative to the end cap.

[0007] The floor brush of the surface cleaning device in the present application also includes the following additional technical features:

[0008] The floor brush further comprises an operating member drivingly connected to the ejecting member and the locking member, wherein the operating member is at least partially exposed to the surface of the housing.

[0009] The operating member is movably arranged on the housing, and the operating member has a first action and a second action that are completed successively during the movement process, wherein the first action unlocks the side plate and the locking member, and the second action causes the ejecting member to abut against the side plate.

[0010] The side plate can deviate from the shell at an angle not greater than 75° under the action of the ejector.

[0011] The shell is provided with a driving part that cooperates with the cleaning roller transmission. The roller brush assembly also includes a disassembly aid, which abuts against the shell during the deflection of the side plate to allow at least part of the cleaning roller to reversely disengage from the driving part.

[0012] The disassembly aid is located within the axial projection range of the cleaning roller.

[0013] One end of the side plate pivotally connected to the end cover is provided with a trigger portion protruding toward the inside of the cleaning roller. During the deflection of the side plate, the trigger portion drives the disassembly aid to move along the axial direction of the cleaning roller to abut against the driving portion, so that at least a portion of the cleaning roller is reversely disengaged from the driving portion.

[0014] The deviation angle of the side plate includes a first deviation angle and a second deviation angle greater than the first deviation angle. The ejector drives the side plate to deflect to the first deviation angle. During the process of the side plate deflecting from the first deviation angle to the second deviation angle, the disassembly aid is driven to move to resist the driving part.

[0015] The disassembly-assisting part and the rotation axis of the cleaning roller have an included angle, and the disassembly-assisting part and the rotation axis of the cleaning roller are separated or intersected.

[0016] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0017] 1. The housing of the present application is provided with a locking member for locking or unlocking the side panel. The locking member can stably maintain the side panel in a position matched with the housing, thereby reducing the probability of the side panel being separated from the housing due to misoperation, vibration or accident during use, so as to provide a guarantee for forming a good negative pressure environment around the cleaning roller during operation, thereby ensuring cleaning efficiency and cleaning performance. Moreover, by providing a locking member, the hard connection or tightness of the fit between the side panel and the housing can be reduced, thereby reducing the mutual wear between the side panel and the housing during the process of the ejector pushing the side panel, and extending the service life of the side panel and the housing. In addition, the matching method of the locking member and the side panel can ensure that the roller brush assembly can be correctly installed when the roller brush assembly is reassembled to the housing, thereby avoiding performance degradation or damage caused by improper installation.

[0018] The shell of the present application is provided with an ejector, and at least a portion of the ejector can extend out to press against the top side plate, so that the free end of the side plate is separated from the side of the shell and deflected toward the side away from the shell, thereby generating an obvious separation gap between the free end of the side plate and the side of the shell, making it easier for users to identify the position of holding the side plate during disassembly, and convenient for people to hold and pull the roller brush assembly out of the shell. The disassembly process is convenient and quick, which is convenient for users to clean, replace or repair the cleaning roller, thereby improving the user experience.

[0019] Compared with the technical solution of setting a pulling structure on the outer surface of the side panel in the prior art, the ejector of the present application is built into the shell, realizing the implicit arrangement of the ejector, which not only helps to improve the appearance quality of the floor brush, but also optimizes the structural design of the side panel, reduces the complexity of the side panel design, and reduces the probability of dust accumulation on the outer surface of the side panel, making it easier for users to clean the outer surface of the side panel. Moreover, the present application makes full use of the redundant space inside the shell, hides the ejector, realizes the compact layout of the internal and external structures of the floor brush, optimizes the space utilization, and contributes to the miniaturization design of the floor brush.

[0020] Furthermore, when the free end of the side panel in the present application is separated from the shell, an obvious separation gap will be generated between the two, and the separation gap can be easily discovered by the user, so that when the ejection piece is accidentally touched, the user can promptly discover that the roller brush assembly has a tendency to separate from the shell, thereby facilitating the user to promptly check the status of the roller brush assembly, thereby avoiding idling of the cleaning roller during use, and the roller brush assembly falling off at special use angles and damaging surrounding objects.

[0021] In addition, by rationally arranging the position of the ejector, the ejector can be made to act on the free end of the side plate. Compared with the technical solution in the prior art of adding a torsion spring or other structures on the pivoting side of the side plate and the end cover to assist the deflection of the side plate, the ejector is made to act on the free end of the side plate, which can not only make good use of the redundant space in the shell, but also facilitate the ejector to apply force to the free end. Therefore, a relatively small force can be used to push the ejector to move, so as to drive the side plate to deflect, which can greatly save power consumption or manpower.

[0022] 2. As a preferred embodiment of the present application, the operating member that is transmission-connected to the ejector is at least partially exposed to the surface of the shell, so that the user can quickly identify the setting position of the operating member, provide explicit guidance to the user, and make it easier for the user to identify and trigger the operating member, thereby further improving the user experience.

[0023] Furthermore, the operating member is movably arranged on the shell, and the operating member has a first action and a second action that are completed successively during the movement process. The first action unlocks the side plate and the locking member, and the second action causes the ejection member to push against the side plate, that is, the unlocking action of the locking member on the side plate occurs before the ejection action of the ejection member on the side plate, so that the ejection of the side plate by the ejection member is not constrained by the locking of the side plate by the locking member, thereby avoiding the occurrence of jamming.

[0024] 3. As a preferred embodiment of the present application, the side plate can deviate from the shell at an angle of no more than 75° under the action of the ejector. With such an arrangement, on the one hand, by limiting the deviation angle of the side plate, it can help maintain the stability of the side plate structure and prevent the side plate from being deformed or damaged due to excessive deflection; on the other hand, it can optimize the space utilization in the shell, ensure that the ejector does not occupy too much space in the shell, facilitate the arrangement of other parts in the shell, and facilitate the extension and retraction of the ejector, and it is not easy to interfere with other parts in the shell during the extension and retraction process, ensuring the smooth action of the ejector on the side plate; furthermore, one end of the side plate is pivotally connected to the end cover, and by limiting the deviation angle of the side plate, the compatibility between the side plate and the end cover can be ensured, so as to ensure the stable cooperation between the two and extend the service life of the two; in addition, in this embodiment, the setting of the deviation angle of the side plate can make the side plate more quickly detached from one side of the shell, further improving the disassembly efficiency.

[0025] 4. As a preferred embodiment of the present application, the roller brush assembly is also provided with a disassembly aid component, which abuts against the shell during the deflection of the side plate. The shell applies a reaction force to the disassembly aid component to assist the removal of the cleaning roller, so that at least part of the cleaning roller is reversely removed from the driving part that cooperates with the cleaning roller transmission, thereby further simplifying the disassembly process and improving the disassembly efficiency.

[0026] Preferably, the disassembly aid is located within the axial projection range of the cleaning roller, so that the space inside the cleaning roller is utilized to realize the assembly of the disassembly aid, thereby realizing the rational use of space, eliminating the occupation of space inside the shell, and contributing to the compactness and miniaturization of the overall structure of the floor brush.

[0027] Furthermore, the side plate is provided with a trigger portion protruding toward the inside of the cleaning roller. During the deflection of the side plate, the trigger portion drives the disassembly aid to move along the axial direction of the cleaning roller to resist the driving portion. That is, during the process of the free end of the side plate detaching from the side of the shell and deflecting toward the side away from the shell, the trigger portion provided on one side of the side plate can drive the disassembly aid to move, so that the disassembly aid can resist the driving portion to assist the cleaning roller to disengage from the driving portion in the opposite direction. There is no need to additionally provide a trigger structure for driving the movement of the disassembly aid, and there is no need to add additional trigger operations. Therefore, this embodiment simplifies the structural composition of the roller brush assembly and reduces the production cost. Moreover, the deflection of the side plate is an inevitable action in the disassembly process of the roller brush assembly. During the deflection of the side plate, the disassembly aid is simultaneously driven to move, making the entire disassembly and assembly process smoother and more natural, and enhancing the user experience.

[0028] 5. As a preferred embodiment of the present application, the length of the ejector is shorter than the length of the cleaning roller, so that by rationally utilizing the space in the housing to arrange the ejector, the side plate can be deflected by the extension of the ejector in a limited space, and the shorter ejector only needs to move a shorter distance to drive the side plate, thereby improving the convenience of operation. In addition, the shorter ejector can reduce the probability of interference with other parts in the housing during the movement of the ejector, thereby ensuring the reliable operation of the roller brush assembly disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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:

[0030] Figure 1 This is a schematic structural diagram of a floor brush when a lower roller brush assembly is assembled on a housing in one embodiment of the present application;

[0031] Figure 2 A cross-sectional view of a floor brush when the lower roller brush assembly is assembled on a housing in one embodiment of the present application;

[0032] Figure 3 for Figure 2 A magnified view of part A;

[0033] Figure 4 This is a schematic diagram of the state of the floor brush when the lower side plate is deflected to a certain angle in one embodiment of the present application;

[0034] Figure 5This is a cross-sectional view of a floor brush when the lower side plate is deflected to a certain angle in one embodiment of the present application;

[0035] Figure 6 for Figure 5 A magnified view of part B;

[0036] Figure 7 This is an exploded schematic diagram of an operating member, a locking member, an ejection member, a side panel and a disassembly aid member in one embodiment of the present application;

[0037] Figure 8 This is a schematic diagram of the matching state of an operating member, a locking member, and an ejection member in one implementation mode of the present application.

[0038] in,

[0039] 1. Shell; 11. Side;

[0040] 2. Side plate; 21. Pivoting end; 22. Free end; 23. Locking block; 231. Locking hole; 232. Second driving inclined surface; 24. Triggering part;

[0041] 3. ejector; 31. first matching portion; 32. ejector rod; 33. first elastic member;

[0042] 4. Locking member; 41. Locking rod; 411. Second matching surface; 42. Second matching portion; 43. Third elastic member;

[0043] 5. operating member; 51. pressing portion; 52. first actuating portion; 521. first driving inclined surface; 53. second actuating portion; 54. second elastic member;

[0044] 6. Cleaning roller;

[0045] 7. Assist in disassembling parts;

[0046] 8. End cap;

[0047] 9. Driving unit;

[0048] 10. Drive motor. DETAILED DESCRIPTION

[0049] 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.

[0050] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope 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 in each embodiment may be combined with each other without conflict.

[0051] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as a limitation on the present application.

[0052] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] In the present application, unless otherwise clearly 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.

[0054] like Figures 1 to 6 As shown, a floor brush of a surface cleaning device comprises a shell 1 and a roller brush assembly detachably arranged on the shell 1, the roller brush assembly comprises a cleaning roller 6, a side plate 2 and an end cover 8 rotatably connected to one end of the cleaning roller 6, one end of the side plate 2 is pivotally connected to the end cover 8 so that the side plate 2 has a pivot axis perpendicular to the rotation axis of the cleaning roller 6, the other end of the side plate 2 is locked with a locking member 4 in the shell 1 so that the cleaning roller 6 can be detachably installed in the shell, and an ejector 3 is provided in the shell 1; at least a portion of the ejector 3 extends out to press against the side plate 2 to unlock the locking member 4, and the side plate 2 pivots to a deviated state relative to the end cover 8; or, when the locking member 4 is in an unlocked state, the ejector 3 at least partially extends out to press against the side plate 2, and the side plate 2 pivots to a deviated state relative to the end cover 8.

[0055] Specifically, at least a portion of the ejector 3 can extend from the side 11 of the housing 1 to abut against the side plate 2, so that the side plate 2 is pivoted to a deviated state relative to the end cover 8. That is, at least a portion of the ejector 3 can extend from the side 11 of the housing 1 to abut against the side plate 2, so that the free end 22 of the side plate 2 is separated from the side 11 of the housing 1 and deflected to a side away from the housing 1, so as to achieve the deviated state.

[0056] The housing 1 of the present application is provided with a locking member 4 for locking or unlocking the side panel 2. The locking member 4 can stably maintain the side panel 2 in a position matched with the housing 1, thereby reducing the probability of the side panel 2 being separated from the housing 1 due to misoperation, vibration or accident during use, so as to provide a guarantee for forming a good negative pressure environment around the cleaning roller 6 during its operation, thereby ensuring the cleaning efficiency and cleaning performance. Moreover, by providing the locking member 4, the hard connection or tightness of the fit between the side panel 2 and the housing 1 can be reduced, thereby reducing the mutual wear between the side panel 2 and the housing 1 during the process of the ejector 3 pushing the side panel 2, and extending the service life of the side panel 2 and the housing 1. In addition, the matching mode of the locking member 4 and the side panel 2 can ensure that the roller brush assembly can be correctly installed when the roller brush assembly is reassembled to the housing 1, avoiding performance degradation or damage caused by improper installation.

[0057] The surface cleaning device in the present application may be a vacuum cleaner, a floor scrubber, a mite remover or a sweeping robot, etc.

[0058] The shell 1 of the present application is provided with an ejector 3, and at least a portion of the ejector 3 can extend from the side surface 11 of the shell 1 to press against the side plate 2, so that the free end 22 of the side plate 2 is separated from the side surface 11 of the shell 1 and deflected to the side away from the shell 1, thereby generating an obvious separation gap between the free end 22 of the side plate 2 and the side surface 11 of the shell 1, making it easier for the user to identify the position of holding the side plate 2 during disassembly, and convenient for the human hand to hold and pull the roller brush assembly out of the shell 1. The disassembly process is convenient and quick, which is convenient for the user to clean, replace or repair the cleaning roller 6, thereby improving the user experience.

[0059] Compared with the technical solution of setting a pulling structure on the outer surface of the side panel 2 in the prior art, the ejector 3 of the present application is built into the shell 1, realizing the implicit arrangement of the ejector 3, which not only helps to improve the appearance quality of the floor brush, but also optimizes the structural design of the side panel 2, reduces the complexity of the design of the side panel 2, and reduces the probability of dust accumulation on the outer surface of the side panel 2, making it easier for users to clean the outer surface of the side panel 2. Moreover, the present application makes full use of the redundant space inside the shell 1, hides the ejector 3, realizes the compact layout of the internal and external structures of the floor brush, optimizes the space utilization, and contributes to the miniaturization design of the floor brush.

[0060] Furthermore, when the free end 22 of the side panel 2 in the present application is separated from the shell 1, an obvious separation gap will be generated between the two, and the separation gap can be easily discovered by the user, so that when the ejection member 3 is accidentally touched, the user can promptly discover that the roller brush assembly has a tendency to separate from the shell 1, thereby facilitating the user to promptly check the status of the roller brush assembly, thereby avoiding idling of the cleaning roller 6 during use, and the roller brush assembly falling off at special use angles and damaging surrounding objects.

[0061] In addition, by rationally arranging the position of the ejector 3, the ejector 3 can act on the free end 22 of the side plate 2. Compared with the technical solution in the prior art of adding a torsion spring or other structures on the pivoting side of the side plate 2 and the end cover 8 to assist the deflection of the side plate 2, the ejector 3 acts on the free end 22 of the side plate 2, which can not only make good use of the redundant space in the shell 1, but also facilitate the ejector 3 to apply force to the free end 22. Therefore, a relatively small force can be used to push the ejector 3 to move, so as to drive the side plate 2 to deflect, which can greatly save power consumption or manpower.

[0062] The present application does not limit the specific abutment position of the ejector 3 against the side plate 2. For the convenience of description, the end of the side plate 2 pivotally connected to the end cover 8 is called the pivot end 21, and the end of the side plate 2 away from the pivot end 21 is called the free end 22. As a preferred embodiment of the present application, Figure 2 and Figure 5 As shown, the position where the ejector 3 abuts against the side plate 2 is close to the free end 22, so that the side plate 2 can be pushed and deflected more easily, thereby improving the disassembly efficiency.

[0063] As a preferred embodiment of the present application, the side plate 2 can deviate from the shell 1 at an angle of no more than 75° under the action of the ejector 3. With such an arrangement, on the one hand, by limiting the deviation angle of the side plate 2, it can help maintain the stability of the structure of the side plate 2 and prevent the structural deformation or damage of the side plate 2 caused by excessive deflection; on the other hand, it can optimize the space utilization in the shell 1, ensure that the ejector 3 does not occupy too much space in the shell 1, facilitate the arrangement of other parts in the shell 1, and facilitate the extension and retraction of the ejector 3, and it is not easy to interfere with other parts in the shell 1 during the extension and retraction process, ensuring the smooth action of the ejector 3 on the side plate 2; furthermore, one end of the side plate 2 is pivotally connected to the end cover 8, and by limiting the deviation angle of the side plate 2, the compatibility between the side plate 2 and the end cover 8 can be ensured, so as to ensure the stable cooperation between the two and extend the service life of the two; in addition, in this embodiment, the setting of the deviation angle of the side plate 2 can make the side plate 2 more quickly detach from one side of the shell 1, further improving the disassembly efficiency.

[0064] As a preferred embodiment of the present embodiment, the side panel 2 can deviate from the shell 1 at an angle α under the action of the ejector 3, and α satisfies 25°≤α≤60°, so that the separation gap between the side panel 2 and the side surface 11 of the shell 1 is more suitable for human hand insertion at the beginning of disassembly, and the moving distance of the ejector 3 can be further optimized, thereby rationalizing the space utilization rate in the shell 1.

[0065] The present application may adopt any one of the following embodiments, so that the side plate 2 can be stably maintained in a position matched with the housing 1 when the roller brush assembly is not disassembled from the housing 1.

[0066] Embodiment 1: One of the side plate 2 and the housing 1 is provided with a magnetic member, and the other is provided with a matching member adapted to the magnetic member. The side plate 2 is kept in a position of being attracted to the housing 1 by the magnetic attraction of the magnetic member and the matching member.

[0067] The first embodiment does not limit the mating part: in one embodiment, the mating part is a metal structure such as ferromagnetism that can generate magnetic force with the magnetic part; in another embodiment, the mating part is also a magnetic structure that has magnetism itself, but the arrangement of the magnetic poles of the mating part is exactly opposite to the matching method of the magnetic poles of the magnetic part, so that the side panel 2 is attracted to the shell 1 through the force of attraction between opposite poles.

[0068] Embodiment 2: The housing 1 is provided with a mounting groove adapted to the side plate 2 . When the side plate 2 is assembled to the housing 1 , there is an interference fit between the side plate 2 and the mounting groove.

[0069] Implementation method three: Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the locking member 4 is movably disposed inside the housing 1 to have a locked state with the side plate 2 and an unlocked state with the side plate 2 detached therefrom.

[0070] The triggering mode and operation mode of the ejector 3 are not limited in the first to third embodiments, and any one of the following embodiments may be adopted:

[0071] Embodiment 1: The surface cleaning device includes an operating member 5 that is communicatively connected to the ejection member 3, and at least a portion of the operating member 5 is exposed to the surface of the surface cleaning device. Depending on the surface cleaning device, the location of the operating member 5 can be rationalized. For example, when the surface cleaning device is a handheld vacuum cleaner, the operating member 5 can be located near the gripping portion of the handheld vacuum cleaner. When the surface cleaning device is a sweeping robot, the operating member 5 can be located on the housing 1 of the floor brush.

[0072] The ejector 3 of the present embodiment 1 is a hydraulic cylinder, a pneumatic cylinder or an electric push rod. The communication connection in the present embodiment 1 can be a wired connection or a wireless connection. That is, the ejector 3 can be electrically connected to the operating member 5 by wire or wireless, and the operating member 5 is triggered to trigger the ejector 3 to move, thereby driving the side plate 2 to deflect.

[0073] Example 2: Figure 1 and Figure 4 As shown, the floor brush further includes an operating member 5 drivingly connected to the ejecting member 3 , and the operating member 5 is at least partially exposed to the surface of the housing 1 .

[0074] Compared with the electric triggering method in Example 1, this Example 2 is manually triggered, thereby improving the user's operating feel.

[0075] It should be noted that, whether it is Example 1 or Example 2, the technical term "exposed" should be interpreted broadly, that is, the operating part 5 exposed to the surface cleaning device or the shell 1 means that the position of the operating part 5 can be intuitively observed from the outside of the surface cleaning device or the shell 1, so as to facilitate the user to quickly identify the operating part 5, and the outer surface of a partial area of ​​the operating part 5 can be flush with the part on the surface cleaning device or the shell 1 where the operating part 5 is installed, or it can be lower or higher than the part on the surface cleaning device or the shell 1 where the operating part 5 is installed.

[0076] When the locking member 4 adopts the embodiments in the above-mentioned embodiment 1 and embodiment 2, the operating member 5 only needs to drive the ejection member 3 to move to realize the pivoting of the side plate 2 relative to the end cover.

[0077] When the locking member 4 adopts the embodiment in the third embodiment, both the locking member 4 and the ejecting member 3 need to be moved to complete the pivoting of the side plate 2 .

[0078] The actions of the locking member 4 and the ejecting member 3 in the second embodiment may be any one of the following examples:

[0079] Example 1: The locking member 4 and the ejection member 3 are both in transmission connection with the operating member 5. Moreover, the operating member 5 is movably arranged on the housing 1. The operating member 5 has a first action and a second action that are completed successively during the movement. The first action unlocks the side plate 2 and the locking member 4, and the second action causes the ejection member 3 to push against the side plate 2. That is, the unlocking action of the locking member 4 on the side plate 2 occurs before the ejection action of the ejection member 3 on the side plate 2, so that the ejection of the side plate 2 by the ejection member 3 is not constrained by the locking of the side plate 2 by the locking member 4, thereby avoiding the occurrence of the jamming phenomenon.

[0080] The transmission connection mode of the ejector 3, the locking member 4 and the operating member 5 in Example 1 includes but is not limited to the following specific examples:

[0081] Example 1: The operating member 5 is rotatably connected to the housing 1 , and the operating member 5 is rotated to drive the locking member 4 to swing and the ejecting member 3 to move, thereby driving the side plate 2 to deflect.

[0082] In a specific example, the operating member 5 includes a knob portion at least partially exposed to the surface of the housing 1, and a touch portion connected to the knob portion and extending into the interior of the housing 1, one of the touch portion and the locking member 4 is provided with a hook, and the other of the two is provided with a hanging hole adapted to the hook, and the touch portion is linked with one end of the locking member 4 through the hook and the hanging hole, so that when the knob portion is rotated, the locking member is driven to swing through the touch portion, so that the other end of the locking member 4 is separated from the side plate 2, and the touch portion is a cam-like structure, and the knob portion is rotated to drive the touch portion to rotate, and the outer peripheral edge of the touch portion contacts the ejection member 3 and pushes against the ejection member 3 to move, thereby driving the free end 22 of the side plate 2 to separate from the surface of the housing 1 and deflect to the side away from the housing 1. In addition, by converting the rotational motion of the touch portion into the linear motion of the ejection member 3, the driving effect of the side plate 2 can be achieved in a limited space, and the structural design is more compact, which improves the space utilization. Preferably, the rotation angle of the trigger portion has a first rotation angle and a second rotation angle greater than the first rotation angle. When the trigger portion rotates from the initial position to the first rotation angle, it can drive the locking member 4 to swing so that the locking member 4 switches from the locked state of the locked side plate 2 to the unlocked state disengaged from the side plate 2. When the knob portion is continued to be rotated to drive the trigger portion to rotate from the first rotation angle to the second rotation angle, the trigger portion drives the ejection member 3 to move so that the ejection member 3 pushes the side plate 2, and the side plate 2 pivots relative to the end cover to a deviated state.

[0083] Example 2: The operating member 5 can move up and down along the housing 1. When the operating member 5 moves downward, it pushes the locking member 4 and the ejecting member 3 to move, thereby driving the side plate 2 to deflect.

[0084] In an example, Figures 1 to 8As shown, the operating member 5 includes a pressing portion 51 at least partially exposed to the surface of the shell 1, and a first touching portion 52 connected to the pressing portion 51 and extending into the interior of the shell 1. The ejection member 3 is provided with a first matching portion 31 adapted to the first touching portion 52 and a push rod 32 connected to the first matching portion 31. The side surface 11 of the shell 1 is provided with a through hole for the push rod 32 to extend out. Preferably, one of the first touching portion 52 and the first matching portion 31 is provided with a first driving inclined surface 521, and the other is provided with a first matching surface capable of contacting the first driving inclined surface 521. The pressing portion 51 of the operating member 5 is pressed to drive the first touching portion 52 to move downward. The first touching portion 52 pushes the first matching portion 31 to move through the cooperation of the first driving inclined surface 521 and the first matching surface to drive the push rod 32 to move outward and deflect against the side plate 2. Furthermore, when the operating member 5 is not pressed, a partial area of ​​the first touch portion 52 abuts against the first matching portion 31, so that when the pressing portion 51 is pressed, the first touch portion 52 can directly drive the first matching portion 31 to drive the push rod 32 to move, which greatly improves the timeliness of the response and thus improves the disassembly efficiency.

[0085] That is, the locking member 4 and the ejecting member 3 share the operating member 5, that is, by triggering the operating member 5, the two actions of unlocking the side panel 2 by the locking member 4 and ejecting the side panel 2 by the ejecting member 3 can be realized at the same time, which further improves the convenience of operation, improves the disassembly efficiency, and makes the function and structure more integrated.

[0086] As a specific example of this embodiment 4, Figure 3 , Figure 6 , Figure 7 and Figure 8 As shown, the operating member 5 includes a pressing portion 51, and a second triggering portion 53 connected to the pressing portion 51 and extending into the interior of the shell 1. The free end 22 of the side plate 2 is provided with a locking block 23 protruding toward one side of the shell 1. The side 11 of the shell 1 is provided with a mounting hole adapted to the locking block 23. The locking block 23 is provided with a locking hole 231. The locking member 4 includes a locking rod 41 adapted to the locking hole 231 and a second matching portion 42 connected to the locking rod 41. The pressing portion 51 of the operating member 5 is pressed to drive the second triggering portion 53 to move downward, and the second matching portion 42 is driven to move by the second triggering portion 53 to drive the locking rod 41 to move and disengage from the locking hole 231, thereby unlocking the side plate 2. After the free end 22 of the side plate 2 is unlocked, it is separated from the shell 1 under the action of the ejection member 3 and deflected to the side away from the shell 1.

[0087] like Figure 7 and Figure 8As shown, the operating member 5 also includes a second elastic member 54 that abuts against the pressing portion 51 to drive the operating member 5 to reset, and the locking member 4 also includes a third elastic member 43 that abuts against the second matching portion 42 to drive the second matching portion 42 to reset. For example, the second elastic member 54 and the third elastic member 43 are both springs. In order to prevent the locking block from obstructing the assembly of the side plate 2 when the roller brush assembly is reassembled to the housing 1, one of the locking block 23 and the locking rod 41 is provided with a second driving inclined surface 232, and the other is provided with a second matching surface 411 that can contact the second driving inclined surface 232. During the assembly of the side plate 2 to the housing 1, the locking rod 41 can be driven to shrink and move by the matching of the second driving inclined surface 232 and the second matching surface 411, so that after the side plate 2 is smoothly installed in the preset position, the locking rod 41 moves under the action of the third elastic member 43 to be stuck in the lock hole 231, thereby achieving the locking and fixing of the side plate 2.

[0088] This Example 2 does not limit the number of ejectors 3. In a preferred example, multiple ejectors 3 are provided in the housing 1, the multiple ejectors 3 are arranged at intervals along the length direction of the side plate 2, and the multiple ejectors 3 are synchronously driven by the operating member 5 to further improve the disassembly efficiency.

[0089] As a preferred example under this example 2, Figure 3 , Figure 6 and Figure 8 As shown, a first elastic member 33 for driving the ejector 3 to reset is further provided in the housing 1. For example, the first elastic member 33 is a spring. The operating member 5 drives the ejector 3 to move to drive the side plate 2 to deflect. When the side plate 2 deflects to a preset angle, the ejector 3 is reset under the action of the first elastic member 33 to avoid hindering the process of resetting the side plate 2 to the housing 1, thereby improving the assembly efficiency of the roller brush assembly to the housing 1.

[0090] Example 2: The locking member 4 and the ejector 3 are both connected to the operating member 5 in a transmission manner. Moreover, the operating member 5 is movably arranged on the housing 1. The operating member 5 has a first action and a second action that partially overlap in time sequence during the activity process. The first action unlocks the side plate 2 and the locking member 4. By rationalizing the action stroke of the operating member 5 on the locking member 4 and the ejector 3, it is possible to make the first action and the second action overlap in time. The second action moves the ejector 3 in a direction that can abut against the side plate 2. Within the time range where the first action is completed and there is no overlap in time between the first action and the second action, continuing the second action can drive the ejector 3 to continue to move so as to abut against the side plate 2 and pivot to a deviated state.

[0091] Example 3: The triggering of the locking member 4 and the triggering of the ejecting member 3 come from different triggering structures.

[0092] In this example 3, an independent operating structure for driving the locking member 4 to move is provided on the housing 1. When the roller brush assembly is disassembled, the operating structure is first triggered to drive the locking member 4 to move to an unlocked state, thereby releasing the lock on the side plate 2, and then the operating member 5 is triggered to drive the side plate 2 to deflect through the ejector 3;

[0093] As a preferred embodiment of the present application, a driving part 9 that cooperates with the cleaning roller 6 in transmission is provided on the housing 1, and the roller brush assembly further includes a disassembly aid 7, which abuts against the housing 1 during the deflection of the side plate 2, so that at least part of the cleaning roller 6 is reversely disengaged from the driving part 9. The disassembly aid 7 abuts against the housing 1 during the deflection of the side plate 2, and the housing 1 applies a reaction force to the disassembly aid 7 to assist the disengagement of the cleaning roller 6, thereby further simplifying the disassembly process and improving the disassembly efficiency.

[0094] In this embodiment, the disassembly aid 7 can be arranged at any one of the following embodiments:

[0095] Embodiment 3: The disassembly aid 7 is located on the outside of the cleaning roller 6. Preferably, the disassembly aid 7 is arranged adjacent to the cleaning roller 6, and a stopper portion that can cooperate with the disassembly aid 7 is convexly provided in the housing 1. The disassembly aid 7 abuts against the stopper portion during the deflection of the side plate 2. Since the disassembly aid 7 and the cleaning roller 6 are both part of the roller brush assembly, the force of the stopper portion reacting on the disassembly aid 7 is indirectly transmitted to the cleaning roller 6, so that the cleaning roller 6 is reversely disengaged from the driving portion 9.

[0096] Example 4: Figure 2 and Figure 5 As shown, the disassembly aid 7 is located within the axial projection range of the cleaning roller 6, so that the space inside the cleaning roller 6 is utilized to realize the assembly of the disassembly aid 7, thereby realizing the rational use of space, saving the occupation of the space inside the shell 1, and contributing to the compactness and miniaturization of the structure of the floor brush.

[0097] This embodiment does not limit the triggering method of the disassembly aid 7, and it can adopt any one of the following embodiments:

[0098] Embodiment 5: The disassembly aid 7 moves along the axial direction of the cleaning roller 6 to abut against the driving part 9, and a trigger button for driving the disassembly aid 7 to move is provided on the housing 1 or the side plate 2. At least part of the trigger button is exposed on the surface of the housing 1 or the side plate 2. That is, by providing a separate trigger button for driving the disassembly aid 7 to move, the disassembly aid 7 moves along the axial direction of the cleaning roller 6 to abut against the driving part 9 during the deflection of the side plate 2, so that at least part of the cleaning roller 6 is reversely disengaged from the driving part 9.

[0099] Example 6: Figure 5 and Figure 6As shown, one end of the side plate 2 pivotally connected to the end cover 8 is provided with a trigger portion 24 protruding toward the inside of the cleaning roller 6. During the deflection of the side plate 2, the trigger portion 24 drives the disassembly aid 7 to move along the axial direction of the cleaning roller 6 to abut against the driving portion 9, so that at least a portion of the cleaning roller 6 is reversely disengaged from the driving portion 9. The trigger portion 24 provided on one side of the side plate 2 can drive the disassembly aid 7 to move, so that the disassembly aid 7 abuts against the driving portion 9 to assist the cleaning roller 6 to reversely disengage from the driving portion 9. There is no need to additionally provide a trigger structure for driving the disassembly aid 7 to move, and there is no need to add additional trigger operations. Therefore, this embodiment 6 simplifies the structural composition of the roller brush assembly and reduces the manufacturing cost. Moreover, the deflection of the side plate 2 is an inevitable action in the disassembly process of the roller brush assembly. During the deflection of the side plate 2, the disassembly aid 7 is synchronously driven to move, making the entire disassembly process smoother and more natural, and pleasing the user's experience.

[0100] In one example, the deviation angle of the side plate 2 has a first deviation angle and a second deviation angle greater than the first deviation angle, and the ejector 3 drives the side plate 2 to deflect to the first deviation angle, and the side plate 2 drives the disassembly aid 7 to move to abut the driving part 9 during the process of the side plate 2 deflecting from the first deviation angle to the second deviation angle. That is, during the process of the ejector 3 driving the side plate 2 to deflect to the first deviation angle, the trigger part 24 does not act on the disassembly aid 7, and the disassembly aid 7 does not move. When the side plate 2 is manually moved to continue to deflect from the first deviation angle to the second deviation angle, the trigger part 24 acts on the disassembly aid 7 to drive the disassembly aid 7 to move along the axial direction of the cleaning roller 6 and abut the driving part 9.

[0101] In another example, the deviation angle of the side panel 2 has a first deviation angle and a second deviation angle greater than the first deviation angle. During the process in which the ejector 3 drives the side panel 2 to deflect to the first deviation angle, the side on which the side panel 2 and the end cover pivot drives the disassembly aid 7 to move to resist the driving portion 9, and the side panel 2 can deviate from the first deviation angle to a larger second deviation angle.

[0102] In this embodiment, the disassembly aid 7 may be arranged in any one of the following embodiments:

[0103] Embodiment 7: The disassembly aid 7 is arranged parallel to the rotation axis of the cleaning roller 6. The parallel arrangement of the two can reasonably utilize the space in the housing 1, making the overall structure more compact and contributing to the miniaturization of the floor brush as a whole.

[0104] Embodiment 8: The disassembly-assisting member 7 and the rotation axis of the cleaning roller 6 have an included angle, and the disassembly-assisting member 7 and the rotation axis of the cleaning roller 6 are separated. That is, the disassembly-assisting member 7 and the rotation axis of the cleaning roller 6 are not in the same plane.

[0105] Embodiment 9: The disassembly aid 7 and the rotation axis of the cleaning roller 6 have an included angle, and the disassembly aid 7 and the rotation axis of the cleaning roller 6 intersect each other, and the disassembly aid 7 and the rotation axis of the cleaning roller are coplanar and intersect each other.

[0106] During the deflection of the side panel 2, the movement trajectory of one end of the side panel 2 pivoting with the end cover is an arc. Whether it is Embodiment 8 or Embodiment 9, hard squeezing between the side panel 2 and the disassembly aid 7 during the deflection can be avoided. With the help of the arrangement of the disassembly aid 7, the contact between the side panel 2 and the disassembly aid 7 can be made smoother, which not only helps the smooth movement of the disassembly aid 7, but also prolongs the service life of the disassembly aid 7 and the side panel 2.

[0107] As a preferred implementation of the present application, Figure 2 and Figure 5 As shown, a driving motor 10 and a driving part 9 that cooperates with the cleaning roller 6 are provided in the housing 1. At least part of the driving motor 10 extends from the other end of the cleaning roller 6. The output end of the driving motor 10 drives the cleaning roller 6 to rotate through the driving part 9. The length of the ejector 3 is less than the length of the cleaning roller 6. At least part of the driving motor 10 extends into the interior of the cleaning roller 6, and the space in the cleaning roller 6 can be fully utilized to realize the arrangement of the driving motor 10, thereby optimizing the space utilization rate in the housing 1. The length of the ejector 3 is less than the length of the cleaning roller 6, so that by reasonably utilizing the space in the housing 1 to arrange the ejector 3, the side plate 2 can be deflected by the extension of the ejector 3 in a limited space, and the shorter ejector 3 only needs to move a shorter distance to realize the driving of the side plate 2, thereby improving the convenience of operation. In addition, the ejector 3 is shorter, which can reduce the probability of interference with other parts in the housing 1 during the movement of the ejector 3, thereby ensuring the reliable operation of the roller brush assembly disassembly.

[0108] Furthermore, the length of the ejector 3 is not greater than 1 / 2 of the length of the cleaning roller 6, so that in the process of the ejector 3 driving the side plate 2 to deflect to drive the roller brush assembly as a whole to be ejected from the shell 1, the pressure distribution between the ejector 3 and the side plate 2 is further optimized to achieve the purpose of using less force to push the side plate 2 out, and the energy efficiency ratio is better.

[0109] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0110] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0111] The above is only 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 modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A floor brush for a surface cleaning device, comprising a housing and a roller brush assembly detachably arranged on the housing, the roller brush assembly comprising a cleaning roller, a side plate and an end cap rotatably connected to one end of the cleaning roller, one end of the side plate being pivotally connected to the end cap so that the side plate has a pivot axis perpendicular to the rotation axis of the cleaning roller, the other end of the side plate being locked with a locking member in the housing so that the cleaning roller can be detachably mounted on the housing, characterized in that: An ejector is provided in the shell; at least a portion of the ejector extends out to abut against the side plate to unlock the locking member, and the side plate pivots relative to the end cover to a deviated state; or, when the locking member is in an unlocked state, the ejector at least a portion of the ejector extends out to abut against the side plate, and the side plate pivots relative to the end cover to a deviated state.

2. The floor brush of a surface cleaning device according to claim 1, characterized in that: The floor brush further comprises an operating member drivingly connected to the ejecting member and the locking member, wherein the operating member is at least partially exposed to the surface of the housing.

3. The floor brush of a surface cleaning device according to claim 2, characterized in that: The operating member is movably arranged on the housing, and the operating member has a first action and a second action that are completed successively during the movement process, wherein the first action unlocks the side plate and the locking member, and the second action causes the ejecting member to abut against the side plate.

4. The floor brush of a surface cleaning device according to claim 1, characterized in that: The side plate can deviate from the shell at an angle not greater than 75° under the action of the ejector.

5. The floor brush of a surface cleaning device according to claim 1, characterized in that: The shell is provided with a driving part that cooperates with the cleaning roller transmission. The roller brush assembly also includes a disassembly aid, which abuts against the shell during the deflection of the side plate to allow at least part of the cleaning roller to reversely disengage from the driving part.

6. The floor brush of a surface cleaning device according to claim 5, characterized in that: The disassembly aid is located within the axial projection range of the cleaning roller.

7. The floor brush of a surface cleaning device according to claim 5, characterized in that: One end of the side plate pivotally connected to the end cover is provided with a trigger portion protruding toward the inside of the cleaning roller. During the deflection of the side plate, the trigger portion drives the disassembly aid to move along the axial direction of the cleaning roller to abut against the driving portion, so that at least a portion of the cleaning roller is reversely disengaged from the driving portion.

8. The floor brush of a surface cleaning device according to claim 5, characterized in that: The deviation angle of the side plate includes a first deviation angle and a second deviation angle greater than the first deviation angle. The ejector drives the side plate to deflect to the first deviation angle. During the process of the side plate deflecting from the first deviation angle to the second deviation angle, the disassembly aid is driven to move to resist the driving part.

9. The floor brush of a surface cleaning device according to claim 5, characterized in that: The disassembly-assisting part and the rotation axis of the cleaning roller have an included angle, and the disassembly-assisting part and the rotation axis of the cleaning roller are separated or intersected.

10. A floor brush for a surface cleaning device according to any one of claims 1 to 9, characterized in that: A driving motor and a driving part that cooperates with the cleaning roller are provided in the shell, at least a part of the driving motor extends into the other end of the cleaning roller, the output end of the driving motor drives the cleaning roller to rotate through the driving part, and the length of the ejector is less than the length of the cleaning roller.

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