Cleaning head and cleaning equipment

Abstract

The invention provides a cleaning head and cleaning equipment, and relates to the technical field of cleaning equipment. The cleaning head comprises a first shell, a second shell and a scraping strip assembly, the second shell wraps part of the first shell and defines a containing cavity, and a rolling brush groove protruding towards the containing cavity is formed in the side, away from the second shell, of the first shell to contain the cleaning unit; the scraping strip assembly comprises a transmission mechanism and a scraping strip body which are connected, the scraping strip body is partially located outside the containing cavity and used for scraping the operation surface, and the transmission mechanism is used for driving the scraping strip body to be switched between the extending state and the retracting state. At least the part, attached to the inner wall of the rolling brush groove, of the transmission mechanism is of an elastic sheet structure, and the elastic sheet structure enables the scraping strip body to be attached to the inner wall of the rolling brush groove in two states through elastic deformation of the elastic sheet structure, so that the space utilization rate of the containing cavity is increased, miniaturization of the cleaning head is facilitated, and the attaching precision and switching smoothness of the scraping strip are improved; meanwhile, part abrasion is reduced, and the service life and reliability of cleaning equipment are prolonged.

Description

TECHNICAL FIELD

[0001] The present specification relates to the technical field of cleaning equipment, and in particular to a cleaning head and a cleaning equipment. BACKGROUND

[0002] Surface cleaning equipment (such as a floor cleaning machine, a floor sweeping robot, etc.) is a commonly used device in modern household cleaning. The core working component of the surface cleaning equipment is a cleaning head. The cleaning head achieves the cleaning, scraping and collecting of dust, stains, water stains and other debris by directly contacting or being close to the working surface.

[0003] In actual application, the cleaning head often integrates a cleaning unit and a squeegee assembly. The main function of the squeegee assembly is to scrape the water stains or sticky stains remaining on the working surface. In order to adapt to different use scenarios, the squeegee assembly needs to be driven by a transmission mechanism to achieve the switching between contacting and separating from the working surface. In order to accommodate the transmission mechanism and other functional components, a receiving cavity is naturally formed inside the cleaning head. In addition, a receiving groove is specially provided on the side of the cleaning unit facing the working surface, which further compresses the available space in the receiving cavity.

[0004] However, due to the limitation of the overall size of the cleaning head, the layout space of the receiving cavity inside the cleaning head is relatively narrow. After the space is squeezed by the roller brush groove, the space problem of the receiving cavity is more prominent. In the related art, the transmission mechanism for driving the squeegee to switch states usually adopts a rigid structure or a thick component. Such rigid or thick components occupy a large space, which is difficult to adapt to the structure of the receiving cavity and further compresses the available space of the receiving cavity. Not only does this limit the functional expansion of the cleaning equipment, but also may cause the overall size of the cleaning head to be too large due to the limited space allocation, ultimately reducing the use convenience and aesthetics of the product. SUMMARY

[0005] To overcome the problems in the related art, the present specification provides a cleaning head and a cleaning equipment. By setting the part of the transmission mechanism abutting against the inner wall of the roller brush groove as an elastic sheet structure, the elastic deformation of the elastic sheet structure is utilized to adapt to the space layout of the receiving cavity and reduce the space occupied by the transmission mechanism, thereby reserving sufficient installation space for functional components.

[0006] According to a first aspect of an embodiment of the present specification, a cleaning head applied to a cleaning equipment is provided, comprising: a first shell; a second shell, the second shell covering at least part of the first shell, the second shell and the first shell enclosing a receiving cavity; a roller brush groove is arranged on the side of the first shell away from the second shell, the roller brush groove faces the receiving cavity, and the roller brush groove is used to accommodate a cleaning unit; A scraper assembly includes a connected transmission mechanism and a scraper body; the scraper body is at least partially located outside the receiving cavity and is used to scrape the working surface; the transmission mechanism is used to drive the scraper body to switch between an extended state and a retracted state. Wherein, at least a portion of the transmission mechanism is attached to the inner wall of the roller brush groove, and at least the portion of the transmission mechanism attached to the inner wall of the roller brush groove is configured as an elastic sheet structure, wherein the elastic sheet structure is elastically deformed so that it is attached to the inner wall of the roller brush groove when the scraper body is in the extended state and the retracted state.

[0007] Currently, in the cleaning heads of related technologies, the roller brush groove protrudes into the cavity, which compresses the cavity space. The transmission mechanism that drives the scraper to switch states is mostly a rigid structure or a heavy component, which not only occupies a lot of space but also makes it difficult to adapt to the compact cavity layout. This results in the cleaning head being too large and not reserving enough installation space for additional functional components, thus limiting the functional expansion of the cleaning equipment.

[0008] In this application, the first and second housings cooperate to form a receiving cavity, providing a mounting base for each component. The roller brush groove protruding into the receiving cavity on the first housing is used to stably accommodate the cleaning unit, while its inner wall provides a support surface for the transmission mechanism. The scraper assembly drives the scraper body to switch between extended and retracted states via the transmission mechanism, meeting the needs of different cleaning scenarios. Crucially, at least the portion of the transmission mechanism that abuts the inner wall of the roller brush groove is designed as an elastic sheet structure. This elastic sheet structure, through its own elastic deformation, remains abutted against the inner wall of the roller brush groove whenever the scraper body switches between the two states. It can adapt to the shape of the roller brush groove and the overall structure of the receiving cavity, completing the connection and layout between the scraper body and the cleaning head drive mechanism along the receiving cavity. Simultaneously, its own elastic deformation ensures constant contact with the inner wall of the roller brush groove, fully utilizing the space around the roller brush groove and allowing the transmission mechanism to occupy minimal space, integrating into the compact layout of the receiving cavity.

[0009] Through the above design, the elastic sheet structure achieves a tight fit with the inner wall of the roller brush groove by utilizing its own deformation characteristics, without occupying additional accommodating cavity, especially the internal space corresponding to the roller brush groove position. This effectively alleviates the spatial pressure caused by the roller brush groove compression, significantly reduces the space occupancy rate of the transmission mechanism, and avoids the cleaning head being too large due to space allocation limitations. At the same time, it reserves sufficient installation space for functional components such as pipeline structure and nozzle assembly, taking into account both the structural compactness and functional expandability of the cleaning head.

[0010] In some exemplary embodiments of this disclosure, in the direction of travel of the cleaning head, the front end of the transmission mechanism is connected to the scraper body, and the rear end of the transmission mechanism is used to connect to the drive mechanism of the cleaning head; There is a gap between the elastic sheet structure and the first housing.

[0011] In this type of embodiment, the front end of the transmission mechanism is connected to the scraper body and the rear end is connected to the drive mechanism along the direction of the cleaning head's travel. This conforms to the overall working structure and internal space layout logic of the cleaning head. Utilizing the length of the accommodating cavity, the power of the drive mechanism is transmitted along the path formed by the transmission mechanism. This allows the transmission mechanism to adapt to the structure of the accommodating cavity and the shape of the roller brush groove, while simultaneously using its own elasticity to drive the scraper body to switch states. The gap reserved between the elastic sheet structure and the first housing provides space for deformation and movement of the elastic sheet structure, preventing friction or even jamming between the elastic sheet structure and the first housing during movement and elastic deformation, thus ensuring the deformation freedom and movement flexibility of the elastic sheet structure.

[0012] This technical solution clarifies the connection relationship and layout between the transmission mechanism and related functional components within the accommodating cavity, ensuring that the power transmission path is adapted to the operating characteristics and internal structural layout of the cleaning head. This results in a more rational internal structural arrangement of the cleaning head, freeing up more longitudinal space within the accommodating cavity and maintaining the compactness of the transmission mechanism. The gap between the elastic sheet structure and the first housing effectively avoids motion jamming caused by contact friction, without affecting the contact relationship between the elastic sheet structure and the inner wall of the roller brush groove or increasing space occupation. This ensures smooth deformation of the elastic sheet structure and smooth movement of the transmission mechanism, making the state switching of the scraper body driven by the transmission mechanism more stable and reliable. It also reduces wear between structures, extending the service life of the cleaning head, thus balancing smooth power transmission with overall compactness.

[0013] In some exemplary embodiments of this disclosure, the thickness of the elastic sheet structure is less than the thickness of the groove wall of the roller brush groove; At least a portion of the elastic sheet structure that undergoes elastic deformation is located above the brush groove.

[0014] In this type of embodiment, the thickness of the elastic sheet structure is limited to less than the wall thickness of the brush groove, making the transmission mechanism more adaptable to the compact spatial layout around the brush groove, further reducing the space occupied by the transmission mechanism, and avoiding additional compression of the accommodating cavity space due to excessive structural thickness. Furthermore, specifying that at least part of the elastic sheet structure undergoes elastic deformation is located above the brush groove allows the deformation area of ​​the elastic sheet structure to form a corresponding fit with the brush groove. The spatial layout above the brush groove is directly related to the contour of the inner wall of the brush groove, guiding the elastic sheet structure to always use the inner wall of the brush groove as a contact reference during deformation, preventing deviation in the deformation direction from causing detachment from the inner wall, thereby ensuring that the transmission mechanism accurately adapts to the shape of the brush groove through deformation.

[0015] In this technical solution, the thinner profile of the elastic sheet structure improves the compactness of the accommodating cavity space, reserving ample installation space for other functional components and further alleviating the space compression problem caused by the roller brush groove. The positional limitation of the deformation part determines the deformation benchmark of the elastic sheet structure, ensuring that it remains in contact with the inner wall of the roller brush groove during deformation transmission, achieving adaptation to the shape of the roller brush groove and avoiding transmission jamming or adaptation failure due to deformation detachment. The combination of these two aspects further optimizes the space utilization and layout rationality within the cleaning head, while also ensuring the reliability of the transmission mechanism's adaptation to the shape of the roller brush groove. This solves the space problem while improving the stability and adaptation accuracy of the transmission function.

[0016] In some exemplary embodiments of this disclosure, the transmission mechanism is provided with a first guide structure disposed near its central portion; The first housing is provided with a second guide structure located within the accommodating cavity, the position of which corresponds to the first guide structure. Both the first guide structure and the second guide structure are located between the transmission mechanism and the first housing, and the first guide structure and the second guide structure are guided and cooperated along the movement direction of the transmission mechanism.

[0017] In this type of embodiment, the first guide structure is positioned close to the center of the transmission mechanism. Since the core force transmission area of ​​the transmission mechanism is mainly concentrated in the center, unlike guide structures positioned on both sides of the transmission mechanism, this allows the guiding constraint to directly act on the core force transmission position. This prevents the transmission mechanism from swaying during movement due to the guide deviating from the core area, thus avoiding jamming problems caused by swaying. A second guide structure, corresponding to the position of the first guide structure, is provided on the first housing within the accommodating cavity. Both the first and second guide structures are positioned between the transmission mechanism and the first housing. This fully utilizes the gap space between them to arrange the guide structures, preventing the additional space occupied by the first and second guide structures from being occupied by the accommodating cavity. Furthermore, the two guide structures are limited to guiding and cooperating along the movement direction of the transmission mechanism, ensuring that the direction of the guiding cooperation matches the movement trajectory of the transmission mechanism. This ensures that the transmission mechanism does not deviate from the preset trajectory during movement, maintaining a stable contact with the inner wall of the brush groove. This continuously achieves adaptation to the shape of the brush groove and the structure of the accommodating cavity, making the state switching of the scraper body more precise.

[0018] This technical solution solves the problem of wobbling and jamming that easily occurs in transmission mechanisms due to their elastic deformation capabilities. By directly guiding and constraining the core force transmission area, the transmission mechanism maintains a preset motion trajectory throughout the movement of the scraper body during state switching, effectively ensuring smooth transmission motion. Simultaneously, the guide structure is positioned in the gap between the transmission mechanism and the first housing, achieving efficient utilization of idle space without additionally compressing the usable space of the receiving cavity. This aligns with the design requirements for optimizing the overall spatial layout of the cleaning head, maintaining the compactness of the internal structure of the cleaning head. Furthermore, precise guidance along the direction of movement is achieved.

[0019] In some exemplary embodiments of this disclosure, the scraper assembly further includes a scraper seat, which is at least partially disposed within the receiving cavity. The opposite ends of the scraper seat are respectively connected to the scraper body and the transmission mechanism, so as to move with the transmission mechanism and drive the scraper body to switch between the extended state and the retracted state. The scraper seat extends along the width direction of the accommodating cavity, and a third guide structure is provided on both sides of the scraper seat in the width direction. The connection between the scraper seat and the transmission mechanism is located between the two third guide structures. The first housing is provided with a fourth guide structure located in the accommodating cavity, which is respectively positioned corresponding to the third guide structure. The fourth guide structure and the third guide structure are guided and cooperated along the movement direction of the scraper seat.

[0020] In this type of embodiment, by connecting the scraper body and the transmission mechanism at opposite ends of the scraper holder, the structural volume of the scraper body can be indirectly increased. This provides ample installation space for the third guide structure while allowing the scraper holder to extend into the cavity, forming a connection with the transmission mechanism that better fits the cavity layout, ensuring the continuity and reliability of power transmission. The scraper holder extends along the width of the cavity to fit the scraper body. Considering its large width, third guide structures are provided on both sides of its width, with the connection between the scraper holder and the transmission mechanism located between the two third guide structures. This symmetrical layout allows the guiding constraints to act evenly on both ends of the scraper holder, avoiding force offset or swaying at both ends due to its large length. Compared to the central guiding method, this is more suitable for the structural characteristics of the scraper holder. The first housing has a fourth guide structure corresponding to the position of the third guide structure within the cavity, and the two work together along the movement direction of the scraper holder, ensuring that the direction of the guiding action matches the movement trajectory of the scraper holder, thus regulating its movement posture.

[0021] This technical solution not only provides reasonable installation space for the third guide structure by utilizing the structural volume of the scraper holder, allowing the first housing to form a guiding relationship with the scraper body (the third guide structure of the scraper holder) through the fourth guide structure, but also improves the connection stability between the scraper body and the transmission mechanism by extending into the accommodating cavity. Furthermore, considering the scraper holder's width-extending structural feature, the symmetrically arranged third and fourth guide structures on both sides form a synergistic constraint. Compared to single or asymmetrical guide methods, this more comprehensively suppresses the swaying, tilting, or offset of the scraper holder during movement, solving the jamming problem easily caused by the large width of the scraper holder. This complements and adapts to the first and second guide structures' guidance of the central part of the transmission mechanism, respectively corresponding to the structural characteristics of different components.

[0022] Some exemplary embodiments of this disclosure also include: A drive mechanism, connected to the transmission mechanism, is used to drive the transmission mechanism to move the scraper body; The first housing and / or the second housing are further provided with a fifth guide structure within the accommodating cavity, and the fifth guide structure is located above the elastic sheet structure. The horizontal height of the fifth guide structure is less than the horizontal height of the connection between the transmission mechanism and the drive mechanism.

[0023] In this type of embodiment, the drive mechanism is connected to the transmission mechanism, and its function is to provide a power source for the transmission mechanism, ensuring that the transmission mechanism can effectively drive the scraper body to switch between extended and retracted states. The first housing and / or the second housing have a fifth guide structure within the accommodating cavity, positioned above the elastic sheet structure. This position corresponds to the main deformation area of ​​the elastic sheet structure, directly constraining the elastic sheet structure during deformation. Simultaneously, the horizontal height of the fifth guide structure is limited to be lower than the horizontal height of the connection between the transmission mechanism and the drive mechanism. The principle is that the connection between the transmission mechanism and the drive mechanism is the power input end; maintaining a slightly higher horizontal height at this connection allows the fifth guide structure to guide the elastic sheet structure downwards, neither obstructing the power transmission path nor hindering the upward arching tendency of the elastic sheet structure.

[0024] This technical solution prevents the elastic sheet structure from arching by limiting the position and height of the fifth guide structure. Addressing the issue that the elastic sheet structure, due to its deformation characteristics, tends to move forward and arch upwards because the scraper body located below the front end can only move in the direction of approaching or moving away from the work surface, the fifth guide structure directly acts on the area where elastic deformation mainly occurs. By guiding downwards, it effectively avoids transmission path deviation or transmission failure caused by arching, ensuring that the elastic sheet structure always maintains a close contact with the inner wall of the roller brush groove and continuously adapts to the shape of the roller brush groove. Simultaneously, the fifth guide structure utilizes the unused space above the elastic sheet structure, without additionally occupying the effective space of the accommodating cavity, thus maintaining the compactness of the internal structure of the cleaning head.

[0025] According to a second aspect of the embodiments of this specification, a cleaning head is provided, comprising: First shell; A second housing, which covers at least a portion of the first housing, and the second housing and the first housing together form an accommodating cavity; The first housing has a roller brush groove protruding into the receiving cavity on the side opposite to the second housing, and the roller brush groove is used to receive the cleaning unit; A scraper assembly includes a connected transmission mechanism and a scraper body; the scraper body is at least partially located outside the receiving cavity for scraping the working surface; the scraper body has a first position in contact with the working surface and a second position detached from the working surface; the transmission mechanism can drive the scraper body to switch between the first position and the second position. Wherein, at least a portion of the transmission mechanism is abutted against the inner wall of the roller brush groove, and at least the portion of the transmission mechanism abutting against the inner wall of the roller brush groove is configured as an elastic sheet structure; when the scraper body switches between the first position and the second position, the elastic sheet structure can undergo elastic deformation to remain abutted against the inner wall of the roller brush groove.

[0026] In this application, the first and second housings cooperate to form a receiving cavity, providing a mounting base for each component. A roller brush groove protruding from the first housing into the receiving cavity stably accommodates the cleaning unit, while its inner wall provides a support surface for the transmission mechanism. The scraper assembly drives the scraper body to switch between a first and second position via the transmission mechanism, meeting the needs of different cleaning scenarios. Crucially, at least a portion of the transmission mechanism is configured to rest against the inner wall of the roller brush groove, and this resting portion is an elastic sheet structure. Utilizing the elastic deformation characteristics of the elastic sheet structure, during the movement of the scraper body switching between the first and second positions, it adapts to the shape and contour of the inner wall of the roller brush groove through its own deformation, thereby always maintaining a state of contact with the inner wall and avoiding increased space occupation or transmission trajectory deviation due to detachment.

[0027] This technical solution utilizes an elastic sheet structure that adheres to the inner wall of the roller brush groove and maintains this contact through elastic deformation. This fully utilizes the space surrounding the roller brush groove, avoiding the additional space required for a rigid transmission structure. It effectively alleviates the space compression problem caused by the roller brush groove protruding into the receiving cavity, significantly reducing the space occupancy rate of the transmission mechanism. Simultaneously, the elastically deformable sheet structure maintains contact with the inner wall of the roller brush groove during the movement of the scraper body. This means that even when the cleaning head switches between cleaning modes, the transmission mechanism will not occupy additional space within the receiving cavity. This avoids the cleaning head becoming too large due to space constraints while reserving ample installation space for other functional components, thus balancing the compactness and functional expandability of the cleaning head.

[0028] In addition, the elastic sheet structure always stays in contact with the inner wall of the brush groove during elastic deformation, which ensures that the movement trajectory of the transmission mechanism is precisely matched with the shape of the brush groove, making the position switching of the scraper body smoother and more stable, and avoiding the jamming problem that is prone to occur in rigid structures.

[0029] In some exemplary embodiments of this disclosure, in the direction of travel of the cleaning head, the front end of the transmission mechanism is connected to the scraper body, and the rear end of the transmission mechanism is used to connect to the drive mechanism of the cleaning head; There is a gap between the elastic sheet structure and the first housing.

[0030] In this type of embodiment, the front end of the transmission mechanism is connected to the scraper body along the direction of the cleaning head's travel, and the rear end is connected to the drive mechanism. Utilizing the length of the accommodating cavity, the power of the drive mechanism is transmitted along the path formed by the transmission mechanism. This allows the transmission mechanism to adapt to the structure of the accommodating cavity and the shape of the roller brush groove, while simultaneously using its own elasticity to drive the scraper body to switch states. The gap reserved between the elastic sheet structure and the first housing provides space for deformation and movement of the elastic sheet structure, preventing friction or even jamming between the elastic sheet structure and the first housing during movement and elastic deformation, thus ensuring the deformation freedom and movement flexibility of the elastic sheet structure.

[0031] This technical solution clarifies the connection relationship and layout between the transmission mechanism and related functional components within the accommodating cavity, ensuring that the power transmission path is adapted to the operating characteristics and internal structural layout of the cleaning head. This results in a more rational internal structural arrangement of the cleaning head, freeing up more longitudinal space within the accommodating cavity and maintaining the compactness of the transmission mechanism. Furthermore, the gap between the elastic sheet structure and the first housing effectively avoids motion jamming caused by contact friction, without affecting the contact relationship between the elastic sheet structure and the inner wall of the roller brush groove or increasing space occupancy. This ensures smooth deformation of the elastic sheet structure and smooth movement of the transmission mechanism, making the position switching of the scraper body more stable and reliable. Simultaneously, it reduces wear between structures to extend the service life of the cleaning head, thus balancing smooth power transmission with overall compactness.

[0032] In some example embodiments of this disclosure, the transmission mechanism is provided with a first guide structure disposed near its central axis, the first guide structure extending along the direction of movement of the transmission mechanism; The first housing is provided with a second guide structure located within the accommodating cavity, the position of which corresponds to the first guide structure. Both the first guide structure and the second guide structure are located between the transmission mechanism and the first housing, and the first guide structure and the second guide structure are guided and cooperated along the movement direction of the transmission mechanism.

[0033] In this type of embodiment, a first guide structure is provided near the central axis of the transmission mechanism, and the first guide structure extends along the movement direction of the transmission mechanism. The principle is that the central axis region of the transmission mechanism is the main area where force transmission occurs. Placing the first guide structure here allows the guiding constraint to act directly on the key position of power transmission, preventing the first guide structure from deviating from the core and causing swaying during the movement of the transmission mechanism. At the same time, the design of extending along the movement direction allows the guiding stroke of the first guide structure to match the movement trajectory of the transmission mechanism, ensuring the continuity and effectiveness of the guiding effect. The first housing has a second guide structure corresponding to the position of the first guide structure in the accommodating cavity, and both are located between the transmission mechanism and the first housing. This can make full use of the gap space between the two to arrange the guide structure without occupying the effective space of the accommodating cavity. At the same time, it limits the guiding cooperation between the two along the movement direction of the transmission mechanism, so that the direction of the guiding constraint matches the movement trend of the transmission mechanism, ensuring that the movement of the transmission mechanism is along the preset direction.

[0034] This technical solution addresses the wobble problem that easily occurs during transmission mechanism movement by strategically positioning the first and second guide structures. Through direct guidance and constraint of the main force transmission area, the transmission mechanism maintains a preset trajectory while switching the position of the scraper body, effectively preventing jamming caused by wobble and ensuring smooth transmission. Simultaneously, the first and second guide structures utilize the gap between the transmission mechanism and the first housing, achieving efficient space utilization without additionally compressing the usable space of the accommodating cavity. This complements the optimized space design of the elastic sheet structure against the inner wall of the roller brush groove, maintaining the compactness of the internal structure of the cleaning head. This ensures a stable contact between the transmission mechanism and the inner wall of the roller brush groove, continuously adapting to the shape of the roller brush groove. This makes the position switching of the scraper body more accurate and reliable, balancing the space utilization rate inside the cleaning head, the smoothness of transmission movement, and the stability of structural adaptation.

[0035] Some exemplary embodiments of this disclosure also include: A drive mechanism is connected to the end of the transmission mechanism away from the scraper body, and the drive mechanism is used to drive the transmission mechanism to drive the scraper body. One end of the first guide structure is located near the connection between the transmission mechanism and the drive mechanism, and the other end of the first guide structure extends along the accommodating cavity to the inner wall of the brush groove.

[0036] In this type of embodiment, the drive mechanism is connected to the end of the transmission mechanism furthest from the scraper body. This allows for a reasonable spatial separation between the power input end and the working end of the scraper body, while also ensuring that the power from the drive mechanism forms a linear transmission path along the transmission mechanism. This guarantees efficient power transmission to the scraper body, providing stable power support for the position switching of the scraper body. One end of the first guide structure is positioned near the connection between the transmission mechanism and the drive mechanism. The principle is that the connection between the transmission mechanism and the drive mechanism is the starting point of power input. The first guide structure, positioned near this location, can constrain the transmission mechanism from the source of power transmission, preventing the transmission mechanism from swaying due to instantaneous forces during power input. This ensures that the guiding constraint takes effect synchronously with the power input. The other end of the first guide structure extends along the accommodating cavity to the inner wall of the brush groove. The principle is that the inner wall of the brush groove is the reference surface against which the transmission mechanism rests. Extending the first guide structure to this reference surface allows the guide stroke to completely cover the main movement area of ​​the transmission mechanism, especially the key parts near the reference surface, ensuring that the transmission mechanism is guided and constrained throughout its entire movement.

[0037] This technical solution, by placing the drive mechanism at the end of the transmission mechanism away from the scraper, ensures both the stability of power transmission and adapts to the overall spatial layout of the cleaning head. The placement of the first guide structure near the power input end suppresses the tendency of the transmission mechanism to wobble at the source, improving the accuracy of the guiding constraint. Extending the first guide structure to the inner wall of the roller brush groove allows the guiding effect to continue throughout the entire movement of the transmission mechanism, ensuring that the transmission mechanism maintains a regular movement trajectory in key areas near the drive end and against the roller brush groove. This technical solution not only meets the requirement of the elastic sheet structure adhering to the inner wall of the roller brush groove, ensuring that the elastic sheet structure always adheres to the inner wall of the roller brush groove through full-process guidance, avoiding jamming or detachment caused by movement deviation, but also fully utilizes the spatial layout characteristics of the accommodating cavity, without adding extra structural space, thus maintaining the compactness of the internal structure of the cleaning head.

[0038] Some exemplary embodiments of this disclosure also include: A drive mechanism, connected to the transmission mechanism, is used to drive the transmission mechanism to move the scraper body; The first housing and / or the second housing are provided with a fifth guide structure within the accommodating cavity. In the direction of travel of the cleaning head, the fifth guide structure at least partially overlaps with the horizontal projection of the elastic sheet structure. The horizontal height of the fifth guide structure is less than the horizontal height of the connection between the transmission mechanism and the drive mechanism.

[0039] In this type of embodiment, the first housing and / or the second housing are provided with a fifth guide structure within the accommodating cavity. In the direction of travel of the cleaning head, the projection of the fifth guide structure onto the elastic sheet structure in the horizontal direction is at least partially overlapping, ensuring that the placement of the fifth guide structure corresponds to the main deformation area of ​​the elastic sheet structure. The elastic sheet structure undergoes elastic deformation when it abuts against the inner wall of the roller brush groove and moves with the transmission mechanism. The arrangement of the fifth guide structure overlapping the horizontal projection of the elastic sheet structure in the direction of travel of the cleaning head allows the fifth guide structure to directly form a targeted limiting constraint on this main area of ​​elastic deformation, preventing limiting failure due to deviation in the constraint position. Simultaneously, the horizontal height of the fifth guide structure is limited to be less than the horizontal height of the connection between the transmission mechanism and the drive mechanism. Since the connection between the transmission mechanism and the drive mechanism is the power input end, maintaining a relatively high horizontal height at this position allows the fifth guide structure to play a downward guiding role above the elastic sheet structure. This does not obstruct the path of power transmission from the drive mechanism to the transmission mechanism, and it also forms an effective downward pressure on the elastic sheet structure, suppressing the upward arching tendency that easily occurs during its elastic deformation.

[0040] In this technical solution, the overlapping design of the fifth guide structure and the elastic sheet structure, along with the height limitation, creates a synergistic limiting effect. This solves the problem of the elastic sheet structure easily arching upwards when moving with the transmission mechanism due to its own elasticity. It effectively avoids transmission trajectory deviation and transmission failure caused by arching, ensuring that the elastic sheet structure always remains in contact with the inner wall of the roller brush groove, guaranteeing its ability to adapt to the shape of the roller brush groove through its own deformation. Simultaneously, the fifth guide structure is positioned using the unused space above the elastic sheet structure, directly placed within the receiving cavity without additionally occupying the effective space of the receiving cavity. This maintains the compactness of the internal structure of the cleaning head and prevents an increase in the overall size of the cleaning head due to the addition of the guide structure.

[0041] Furthermore, this fifth guide structure forms a complementary constraint system with the preceding first and second guide structures. The first and second guide structures provide full-process guidance for the overall sway of the transmission mechanism, while the fifth guide structure provides targeted limitation for the arching problem of the elastic sheet structure. The combination of the two constructs a more comprehensive motion constraint system, further improving the smoothness and stability of the transmission mechanism's movement, making the position switching of the scraper body more precise and reliable, while reducing mutual interference and wear during structural movement, and improving the overall durability of the cleaning head.

[0042] In some example embodiments of this disclosure, the fifth guide structure is located at the front of the roller brush groove and is correspondingly disposed above the roller brush groove; The fifth guiding structure is configured as either the first pressure roller or the first guide block.

[0043] In this type of embodiment, the fifth guide structure is set at the front of the roller brush groove and correspondingly located above the roller brush groove. The principle is that the front of the roller brush groove is the area where the elastic sheet structure mainly undergoes elastic deformation when the transmission mechanism drives the scraper body to move. This position allows the fifth guide structure to form a more precise limiting constraint on the elastic deformation part of the elastic sheet structure, maximizing the anti-arching effect. At the same time, the spatial layout above the roller brush groove will not interfere with the movement of the cleaning unit in the roller brush groove, and can be completed by relying on the idle space of the accommodating cavity, without affecting the normal operation of other components inside the cleaning head. The fifth guide structure is set as either the first pressure roller or the first guide block because both structures can achieve the downward limiting function of the elastic sheet structure, adapting to different usage scenarios and structural requirements. The first pressure roller interacts with the elastic sheet structure through rolling contact, which can convert the sliding friction between the structures into rolling friction, reducing the wear on the elastic sheet structure. The first guide block forms a stable limiting support through surface contact, which has a stronger restraining effect on the arching trend of the elastic sheet structure, further reducing the probability of jamming, transmission failure and other problems, making the overall movement of the scraper assembly smoother and more precise.

[0044] This technical solution, by limiting the position of the fifth guide structure, makes its anti-arching constraint on the elastic sheet structure more targeted. The layout at the front of the roller brush groove matches the main deformation area of ​​the elastic sheet structure, effectively preventing the elastic sheet structure from arching upwards during critical movement stages. This further ensures that it always maintains a close contact with the inner wall of the roller brush groove, guaranteeing the accurate movement trajectory of the transmission mechanism and making the position switching of the scraper body more stable. The layout above the roller brush groove, while achieving the limiting function, avoids interference with the movement of the cleaning unit, ensuring that the cleaning head's cleaning operation and transmission movement do not affect each other. Moreover, it still utilizes the unused space of the accommodating cavity, without occupying additional effective space, thus maintaining the compactness of the structure.

[0045] In some exemplary embodiments of this disclosure, the fifth guide structure is configured as a first pressure roller, which is disposed at the front of the first guide structure; The rotation axis of the first pressure roller is perpendicular to the direction of movement of the transmission mechanism, so that the first pressure roller can roll the upper surface of the elastic sheet structure.

[0046] In this type of embodiment, the first pressure roller, which serves as the fifth guide structure, is positioned at the front of the first guide structure. The principle is that the first guide structure provides motion guidance for the transmission mechanism throughout its entire movement. The front of the first guide structure corresponds to the critical stage in which the transmission mechanism drives the scraper body to move, and it is also the area where the elastic sheet structure mainly undergoes elastic deformation. By placing the first pressure roller here, the main deformation parts of the elastic sheet structure can be superimposed with roller pressure limiting on the basis of the basic guiding function of the first guide structure, forming a dual constraint of guidance and roller pressure, making the anti-arching limiting function more targeted. The rotation axis of the first pressure roller is set to be perpendicular to the direction of movement of the transmission mechanism. The principle is that the vertical layout of its rotation axis allows the roller pressing surface of the first pressure roller to match the movement trajectory of the elastic sheet structure. This allows the first pressure roller to roll freely along the direction of movement of the transmission mechanism, achieving uniform roller pressing on the upper surface of the elastic sheet structure. This provides stable downward pressure to suppress the upward arching tendency of the elastic sheet structure, and avoids uneven roller pressing force or obstruction of the normal movement of the transmission mechanism due to the skew of the rotation axis. At the same time, the rolling contact form can effectively replace the sliding contact, reduce wear on the elastic sheet structure, effectively protect the structural integrity of the elastic sheet structure, improve its durability, and thus extend the overall service life of the cleaning head.

[0047] This technical solution, by placing the first pressure roller at the front of the first guide structure, allows the basic guidance of the first guide structure and the rolling pressure of the first pressure roller to work together, achieving dual constraints on the main deformation area of ​​the elastic sheet structure. This completely suppresses the possibility of the elastic sheet structure arching upwards in this area, further ensuring that the elastic sheet structure always remains in close contact with the inner wall of the brush groove. This effectively avoids transmission trajectory deviation or transmission failure caused by arching, making the position switching of the scraper body driven by the transmission mechanism more precise and stable.

[0048] Some exemplary embodiments of this disclosure also include: A drive mechanism is connected to the end of the transmission mechanism away from the scraper body, and the drive mechanism is used to drive the transmission mechanism to drive the scraper body. The first housing is located within the accommodating cavity and is further provided with a sixth guide structure. The sixth guide structure is located near the connection between the transmission mechanism and the driving mechanism, and is located below the elastic sheet structure and near the lower surface of the elastic sheet structure. The sixth guide structure is configured as a second pressure roller or a second guide block.

[0049] In this type of embodiment, the drive mechanism is connected to the end of the transmission mechanism away from the scraper body. By separating the power input end from the working end of the scraper body, the power transmission path is reasonably arranged along the length of the accommodating cavity, ensuring that the transmission mechanism reliably drives the scraper body to switch between different positions. The first housing is provided with a sixth guide structure in the accommodating cavity, which is arranged close to the connection between the transmission mechanism and the drive mechanism. The sixth guide structure is located below the elastic sheet structure and close to the lower surface of the elastic sheet structure. The principle is that the connection between the transmission mechanism and the drive mechanism is the starting point of the power input. The motion posture at this position directly determines the subsequent overall transmission trajectory. The sixth guide structure is set near the lower surface of the elastic sheet structure to form upward support and limit from below, preventing the elastic sheet structure from drooping or deviating due to the force of the power input. It regulates the motion posture from the initial stage of transmission and prevents the transmission mechanism from interfering with other structures or functional components in the accommodating cavity at this stage. Meanwhile, the sixth guide structure is set as the second pressure roller or the second guide block. Both structural forms can achieve the lower support and limit of the elastic sheet structure. It can be flexibly selected according to actual use needs and processing technology to adapt to different application scenarios.

[0050] This technical solution primarily addresses the issue of the elastic sheet structure's tendency to sag and deviate downwards at the power input end by limiting the position of the sixth guide structure. It provides effective downward support from the initial stage of transmission, forming a two-way constraint with the upper limiting structure targeting the deformation zone of the elastic sheet structure. This regulates the posture of the elastic sheet structure throughout the entire process from power input to deformation, ensuring that its contact with the inner wall of the roller brush groove is not disrupted due to sag or deviation. This effectively avoids problems such as overall transmission sway and jamming caused by abnormal input end posture, ensuring the transmission mechanism's movement trajectory remains precise. Furthermore, by supporting the transmission mechanism at this stage, the structural layout avoids interference with other components within the accommodating cavity, ensuring smooth operation of all functional components within the cavity, preventing malfunctions caused by component interference, and improving the overall reliability of the cleaning head.

[0051] According to a third aspect of the embodiments of this specification, a cleaning device is provided, comprising: fuselage; and The cleaning head as described in the first or second aspect is pivotally connected to the body.

[0052] In this application, the cleaning equipment consists of a body and a cleaning head. The body provides a stable foundation for the installation and arrangement of the cleaning head and various components such as the power and control systems of the cleaning equipment, and serves as the carrier for the overall cleaning operation. The cleaning head and the body are connected by a pivotable connection. Utilizing the rotational characteristics of the pivot connection structure, the cleaning head can rotate flexibly relative to the body around a pivot axis, allowing the cleaning head to adaptively adjust its contact angle according to the shape of the actual working surface. At the same time, this connection method does not interfere with the structural movement and functional realization of the cleaning head itself.

[0053] This technical solution combines the main body with a pivotable cleaning head, leveraging the miniaturization advantage of the cleaning head's own elastic sheet structure. The cleaning head's elastic sheet structure makes it smaller in size, and its pivotable connection with the main body allows it to easily reach narrow cleaning areas that traditional cleaning equipment struggles to access, such as under furniture, in wall corners and crevices, and at the edges of steps. This significantly improves the cleaning coverage of the equipment, effectively avoiding cleaning dead spots. The pivotable structure also allows the miniaturized cleaning head to flexibly adjust its fitting angle within narrow areas, ensuring that the squeegee body, roller brush, and other cleaning units always maintain close contact with the working surface, further optimizing the overall cleaning effect.

[0054] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0055] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0056] Figure 1 This is a schematic diagram of the overall structure of the cleaning head shown in the embodiments of this specification; Figure 2 This is a side view of the cleaning head shown in the embodiments of this specification; Figure 3 This is one of the cross-sectional views of the cleaning head shown in the embodiments of this specification (the scraper body is in the retracted state / second position). Figure 4 This is one of the cross-sectional views of the cleaning head shown in the embodiments of this specification (the scraper body is in the extended state / first position); Figure 5 This is a schematic diagram of the internal structure of the cleaning head shown in the embodiments of this specification (the second housing is omitted). Figure 6 This is an exploded view of the cleaning head shown in the embodiments of this specification (second housing omitted).

[0057] Explanation of reference numerals in the attached figures 10. First housing; 11. Brush groove; 12. Second guide structure; 13. Fourth guide structure; 14. Sixth guide structure; 20. Second housing; 30. Accommodating cavity; 40. Scraper assembly; 41. Transmission mechanism; 411. First guide structure; 42. Scraper body; 43. Scraper seat; 431. Third guide structure; 50. Fifth guide structure; 60. Drive mechanism. Detailed Implementation

[0058] The exemplary implementation will now be described more fully with reference to the accompanying drawings.

[0059] As can be seen from the background technology, the internal cavity of the cleaning head is already narrow due to the overall size limitation. The setting of the roller brush groove exacerbates the space shortage problem. In related technologies, the transmission mechanism that drives the squeegee switching often adopts a rigid structure or a component with a large thickness. Such components occupy a lot of space, which is not only difficult to adapt to the compact cavity structure, but also further squeezes the available space. This not only limits the functional expansion of the cleaning equipment, but may also lead to the overall size of the cleaning head being too large, reducing the convenience and aesthetics of the product.

[0060] In view of this, this embodiment provides a cleaning head that optimizes the structure of the transmission mechanism 41 to specifically solve problems in related technologies such as low space utilization of the cleaning head accommodating cavity 30, large space occupation of the transmission mechanism 41, large overall size, and limited functional expansion. This ensures that the cleaning head maintains a compact structure while taking into account transmission stability and usability.

[0061] Please refer to the instruction manual attached.Figures 1-4 The cleaning head provided in this embodiment mainly includes a first housing 10, a second housing 20, a roller brush groove 11 for accommodating the cleaning unit, and a scraper assembly 40 composed of a transmission mechanism 41 and a scraper body 42. The second housing 20 and the first housing 10 enclose a cavity 30, providing a mounting base for internal functional components. The first housing 10 has a roller brush groove 11 protruding into the cavity 30. The roller brush groove 11 serves both to fix the cleaning unit (such as a roller brush or bristle brush) and to provide a support surface for the transmission mechanism 41. The transmission mechanism 41 adapts to the inner wall shape of the roller brush groove 11 through its elastic sheet structure, while simultaneously driving the scraper body 42 to flexibly switch between an extended and retracted state, thus solving the problem of limited space in the cavity 30 and ensuring reliable and efficient cleaning operations.

[0062] Specifically, the first housing 10 and the second housing 20 constitute the overall structural frame of the cleaning head. They are enclosed by the second housing 20 covering at least a portion of the first housing 10 to form a receiving cavity 30. This covering method can be adapted to actual design requirements. For example, the second housing 20 can only cover the upper part and sides of the first housing 10, or it can cover the entire circumference with a pre-reserved functional opening. In this embodiment, the second housing 20 covers the upper part of the first housing 10, and in the direction of travel of the cleaning head, a portion of the second housing 20 covers the front side of the first housing 10. The connection method between the first housing 10 and the second housing 20 can be, but is not limited to, snap-fit ​​splicing, screw fixing, or integral molding; this embodiment does not have strict limitations or requirements in this regard. The receiving cavity 30 serves as the main installation space for the cleaning head's related functional components. It not only accommodates the transmission mechanism 41 but also accommodates auxiliary components such as the drive mechanism 60, wiring, and piping that may be added later. Its spatial layout, through the contour design of the first housing 10 and the second housing 20, ensures that all components are compactly arranged and do not interfere with each other.

[0063] The first housing 10 has a roller brush groove 11 protruding into the receiving cavity 30 on the side away from the second housing 20 (i.e. the side facing the working surface, as shown below). The roller brush groove 11 is used to take into account both the stable installation of the cleaning unit and the support requirements of the transmission mechanism 41. Its shape needs to be adapted to the shape of the cleaning unit. For example, when the cleaning unit is a cylindrical roller brush, the roller brush groove 11 is set as an arc-shaped groove; when the cleaning unit is a strip-shaped cleaning block, the roller brush groove 11 can also be set as a rectangular groove.

[0064] Understandably, although the structure of the roller brush groove 11 protruding into the receiving cavity 30 will compress the lateral space of the receiving cavity 30 to some extent, through reasonable planning and layout, the transmission mechanism 41 can be compactly installed with the help of the inner wall of the roller brush groove 11, avoiding the disadvantage of the transmission mechanism 41 occupying the central space of the receiving cavity 30 alone.

[0065] The scraper assembly 40, as the main component of the cleaning head for scraping the surface, has its transmission mechanism 41 connected to the scraper body 42 via a fixed or detachable connection. The detachable connection is not limited to slotted joints or bolt fixing, facilitating replacement and maintenance of the scraper body 42 after wear. The scraper body 42 extends at least partially outside the receiving cavity 30, and its material must balance flexibility and wear resistance, such as silicone, rubber, or polyurethane composite materials. The length of the scraper body 42 can be adapted to the overall width of the cleaning head, either matching the width of the cleaning head for comprehensive scraping or featuring a narrow structure for localized cleaning needs, adapting to different cleaning scenarios.

[0066] The transmission mechanism 41, as a key component driving the scraper body 42 to switch working states, is at least partially attached to the inner wall of the roller brush groove 11. At least the portion of the transmission mechanism attached to the inner wall of the roller brush groove 11 is configured as an elastic sheet structure. This thin transmission structure, formed by the elastic sheet structure, occupies less space compared to transmission methods in related technologies. Combined with its arrangement attached to the inner wall of the roller brush groove 11, it eliminates the need to reserve additional space for movement and installation within the receiving cavity 30, further freeing up usable space in the receiving cavity 30. This dual advantage addresses the technical pain point of limited space in the receiving cavity 30. The material selection for the elastic sheet structure must simultaneously meet the requirements of elastic deformation capacity and power transmission. Materials such as spring steel sheets, high-strength engineering plastic sheets, and carbon fiber sheets are suitable. A thinner thickness can improve its elastic deformation flexibility while ensuring sufficient structural strength to stably transmit driving force.

[0067] It should be understood that the contact relationship between the transmission mechanism 41 and the inner wall of the roller brush groove 11 is not an absolutely tight fit. A small gap can be reserved between the two to reduce frictional resistance during the movement, but it is necessary to ensure that they always maintain a close fit throughout the entire movement.

[0068] When the scraper body 42 switches from the retracted state to the extended state, the transmission mechanism 41 pushes it closer to the scraper body 42. At this time, the elastic sheet structure bends and deforms along the inner wall of the brush groove 11, adapting to the contour change of the brush groove 11 to change the direction of movement of the part connected to the scraper body 42, thereby driving the scraper body 42 to move closer to the working surface. When the scraper body 42 switches from the extended state to the retracted state, the elastic sheet structure pulls it away from the scraper body 42, driving the scraper body 42 to move away from the working surface. In both positions of the scraper body 42, the elastic sheet structure can adapt to the inner wall structure of the brush groove 11 through its own elastic deformation characteristics, keeping it in contact with the inner wall of the brush groove 11 and preventing it from detaching from the inner wall of the brush groove 11 due to deformation.

[0069] In this embodiment, the thin transmission design formed by the elastic sheet structure optimizes space utilization from both the structural aspects and the layout. It overcomes the drawback of rigid transmission structures occupying large spaces in related technologies, and by conforming to the inner wall of the roller brush groove 11 and adapting to its contour through deformation, it completely avoids the problem of occupying the central space of the receiving cavity 30 alone, significantly improving the space utilization rate of the receiving cavity 30. This effectively prevents the cleaning head from being too large due to limited space allocation. Simultaneously, the elastic deformation characteristics ensure the stability of the movement trajectory of the transmission mechanism 41, preventing swaying, jamming, or other issues, thus ensuring the smooth switching of the scraper body 42's state. The scraper body 42 achieves extension and retraction state switching through the drive of the transmission mechanism 41, meeting the usage needs of different cleaning scenarios. When extended, it closely contacts the working surface for efficient scraping; when retracted, it detaches from the working surface for easy equipment movement, turning, or storage, significantly improving the product's ease of use.

[0070] In addition, the compact spatial layout provides ample space for the functional expansion of the cleaning head. Steam spraying devices, wastewater recycling channels, and induction sensors can be added to the housing 30 to further improve the overall performance of the cleaning equipment. The wear-resistant and corrosion-resistant properties of the elastic sheet structure itself also help to extend the overall service life of the cleaning head.

[0071] It should be further explained that the elastic sheet structure of the transmission mechanism 41 can be flexibly selected according to actual design requirements. The elastic sheet structure can be set only in the area where the transmission path changes most in the inner wall of the roller brush groove 11 (such as the curved section and turning section of the roller brush groove 11), while other parts of the transmission mechanism 41 can be made of rigid structure (such as plastic or metal rigid parts). Alternatively, the entire transmission mechanism 41 can be set as an elastic sheet structure, so that it forms a thin transmission structure throughout the entire process. The whole structure can flexibly deform with the movement trajectory without the need for additional rigid connecting sections. This integrated solution has the lowest space occupancy rate and is more suitable for the design requirements of the cleaning head size being extremely compact. Both settings can achieve the core technical effects of adapting to the inner wall of the roller brush groove 11, reducing space occupation, and ensuring smooth transmission.

[0072] Please continue to refer to the instruction manual appendix. Figures 3-5 In one embodiment, in the direction of travel of the cleaning head, the front end of the transmission mechanism 41 is connected to the scraper body 42, and the rear end of the transmission mechanism 41 is used to connect to the drive mechanism 60 of the cleaning head. That is, when the cleaning head also includes a drive mechanism 60, the transmission mechanism 41 is connected to the output end of the drive mechanism 60, while the fixed end of the drive mechanism 60 can be disposed on the first housing 10 and / or the second housing 20. This partitioned connection method along the working direction of the cleaning head ensures that the power transmission path of the transmission mechanism 41 is consistent with the normal working direction of the cleaning head, forming a forward power transmission structure.

[0073] In this embodiment, at least the portion of the transmission mechanism 41 that is attached to the inner wall of the roller brush groove 11 is configured as an elastic sheet structure. The front end of the transmission mechanism 41 can extend to the front end of the receiving cavity 30 and is located at the front of the roller brush groove 11. The rear end of the transmission mechanism 41 can change its extension direction through the elastic deformation of the elastic sheet structure itself and extend to the rear end of the receiving cavity 30. Its layout freedom is higher than that of the rigid transmission method.

[0074] Furthermore, this power transmission path also ensures that the scraper body 42 is positioned in front of the cleaning head, allowing the scraper body 42 to scrape the work surface before the cleaning unit when it is in the extended state, thus meeting the actual usage requirements of the scraper assembly 40 and the cleaning unit cleaning in sequence.

[0075] It should be noted that the direction of travel of the cleaning head is based on the direction of its forward movement during normal cleaning operations. The front end of the transmission mechanism 41 is the side closest to the working end of the cleaning head, which is also the side that directly drives the scraper body 42 to move. The rear end is the side closest to the connection end between the cleaning head and the machine body, which is the side that receives the power from the drive mechanism 60.

[0076] In the above embodiments, the connection method between the transmission mechanism 41 and the scraper body 42 has been exemplarily described, so this embodiment will not repeat it. The connection between the rear end of the transmission mechanism 41 and the cleaning head drive mechanism 60 can be adapted to different types of drive mechanisms 60. For example, if the drive mechanism 60 is a gear transmission assembly driven by a motor, the rear end of the transmission mechanism 41 can be provided with meshing tooth grooves to cooperate with the gears, realizing the conversion of rotational power into linear power; if the drive mechanism 60 is an electric push rod telescopic assembly, the rear end of the transmission mechanism 41 can be provided with a connecting sleeve to be sleeved and fixed to the end of the push rod, directly receiving the telescopic power. This front and rear end partition connection along the direction of travel makes the movement of the transmission mechanism 41 more evenly stressed, avoiding the problem of local stress concentration in the transmission mechanism 41. At the same time, the forward power transmission path greatly reduces power loss, making the state switching of the scraper body 42 more sensitive.

[0077] In a further definition of this embodiment, a gap exists between the elastic sheet structure and the first housing 10. This gap is an adaptive clearance reserved based on the deformation stroke and movement trajectory of the elastic sheet structure. It is also a further optimization and supplement to the aforementioned relationship between the transmission mechanism 41 and the inner wall of the brush groove 11, and is not an irregular empty space. Since the brush groove 11 is an important component of the first housing 10, and the elastic sheet structure mainly abuts against the inner wall of the brush groove 11, this gap is mainly formed between the side of the elastic sheet structure closest to the inner wall of the brush groove 11 and the inner wall of the brush groove 11. The design principle of this gap is that if the elastic sheet structure and the first housing 10 are in direct contact without any gap, the elastic sheet will generate excessive frictional resistance with the first housing 10 when it undergoes elastic deformation such as bending and stretching, and may even cause deformation jamming, which will seriously affect its deformation flexibility and overall smoothness of movement. By reserving a reasonable gap, sufficient space can be provided for the various deformation actions of the elastic sheet structure, ensuring that it can freely and unhinderedly adapt to the contour changes of the roller brush groove 11 during transmission, while effectively reducing frictional contact with the first housing 10 and reducing the wear rate of the component.

[0078] Understandably, the size of the aforementioned gap can be adjusted according to the material, thickness, and maximum deformation stroke of the elastic sheet structure during operation. For example, when using spring steel sheets with higher material hardness and relatively smaller deformation amplitude, a smaller gap can be reserved; when using high-strength engineering plastic sheets or carbon fiber sheets with greater flexibility and larger deformation amplitude, a slightly larger gap can be reserved accordingly. The principle is to meet the deformation requirements of the elastic sheet structure throughout its entire stroke without causing unnecessary swaying of the transmission mechanism 41 due to excessive gap, thus ensuring the stability of its movement. At the same time, the form of gap reservation can also be flexibly designed. A uniformly wide gap can be reserved between the elastic sheet structure and the first housing 10 throughout its entire stroke to adapt to the scenario of uniform deformation of the transmission mechanism 41 throughout its entire stroke; a larger gap can also be reserved in the bending and turning sections of the transmission mechanism 41's movement trajectory, and a smaller gap can be reserved in the straight movement section, specifically adapting to the deformation requirements of different movement stages, so that the gap design is more in line with the actual movement state of the transmission mechanism 41.

[0079] Furthermore, the reserved gap can also be combined with the structural design of the first housing 10. For example, a rib can be set on the inner wall of the first housing 10 opposite to the elastic sheet structure. The width of the gap can be precisely defined by the height of the rib, so as to achieve the standardized design of the gap and improve the convenience of production and processing.

[0080] It should be noted that the front and rear end partition connection of the aforementioned transmission mechanism 41 and the gap design between the elastic sheet structure and the first housing 10 are not independent of each other. The front and rear end partition connection along the direction of the cleaning head's travel makes the power transmission path of the transmission mechanism 41 clearer and the movement trajectory more stable, providing a prerequisite for the gap reservation and avoiding the problem of gap reservation failure caused by the irregular movement trajectory of the transmission mechanism 41. Meanwhile, the gap between the elastic sheet structure and the first housing 10 ensures the deformation flexibility of the elastic sheet structure, allowing the transmission mechanism 41 to adapt to the contour changes of the inner wall of the roller brush groove 11 through free and unobstructed elastic deformation during forward power transmission, further improving the smoothness of the overall movement and avoiding problems such as power transmission jamming due to deformation obstruction and untimely state switching of the scraper body 42.

[0081] Meanwhile, this embodiment continues the advantages of the thin transmission structure formed by the aforementioned elastic sheet structure. Compared with the transmission method in related technologies, the thin structure itself occupies less space. Combined with the arrangement of the structure against the inner wall of the roller brush groove 11, there is no need to reserve additional movement and installation space for it in the accommodating cavity 30. The gap between the elastic sheet structure and the first housing 10 is also a reasonable plan made in the idle area between the elastic sheet structure and the first housing 10, without occupying additional effective space in the accommodating cavity 30. The overall size of the cleaning head will not be too large due to the addition of gap design, and the high space utilization rate of the accommodating cavity 30 will continue to be maintained.

[0082] In one embodiment, the thickness of the gap between the elastic sheet structure and the inner wall of the roller brush groove 11 is set to be less than the thickness of the groove wall of the roller brush groove 11, so as to ensure that the space occupied by the transmission mechanism 41 in the accommodating cavity 30 is kept within a small and reasonable range.

[0083] In one embodiment, the drive mechanism 60 is a servo motor. In this embodiment, the output shaft of the servo motor can be movably connected to the rear end of the transmission mechanism 41. The elastic sheet structure is driven to deform along the inner wall of the roller brush groove 11 by the tension or thrust generated by the reciprocating rotation along a preset angle, thereby driving the scraper body 42 to complete the state switching of extension and retraction.

[0084] Please refer to the instruction manual attached. Figures 3-4In one embodiment, the thickness of the elastic sheet structure is less than the wall thickness of the roller brush groove 11. It is understood that the wall of the roller brush groove 11, as part of the first housing 10 and the mounting support structure of the cleaning unit, needs to withstand the rotational force, frictional resistance, and external impacts during the operation of the cleaning unit. Therefore, it must possess sufficient structural strength and rigidity, and its thickness must prioritize ensuring support stability. For example, the wall of the roller brush groove 11 can be made of high-strength materials such as hard plastic, aluminum alloy, or engineering resin. A reasonable thickness design ensures that it will not deform or break due to the operation of the cleaning unit. The function of the elastic sheet structure is to adapt to the contour of the inner wall of the roller brush groove 11 through its own elastic deformation, while simultaneously transmitting driving force to move the scraper body 42. It does not need to bear a high-strength support role. Therefore, while meeting the structural strength and elastic deformation capacity required for power transmission, a thinner thickness can be used, which can reduce its own space occupancy and improve deformation flexibility.

[0085] This embodiment employs a differentiated design where the support structure (first housing 10, or the groove wall of the brush groove 11) is thick and the transmission structure (transmission mechanism 41, or the elastic sheet structure therein) is thin. This allows the groove wall of the brush groove 11 to bear the main support load, while the elastic sheet structure is only used for transmission and deformation functions. The two complement each other. The thin design of the elastic sheet structure does not affect the support stability of the brush groove 11. On the contrary, it can form a reliable support base with the help of the thick wall of the brush groove 11, further reducing the space occupied by the transmission mechanism 41 and allowing the available space of the accommodating cavity 30 to be released more fully.

[0086] Meanwhile, in this embodiment, at least some of the elastic sheet structures that undergo elastic deformation are arranged above the roller brush groove 11. The purpose is to allow the transmission mechanism 41 to accurately adapt to the contour of the roller brush groove 11 and the structure of the receiving cavity 30, ensuring that it can achieve stable adaptation through elastic deformation regardless of whether it moves forward or backward. From the perspective of the sequence of cleaning operations, the function of the scraper body 42 is to first scrape away water stains and sticky stains on the working surface, and then the cleaning unit (such as roller brush or bristle brush) in the roller brush groove 11 completes the subsequent cleaning and collection. Therefore, the scraper body 42 needs to be placed in front of the cleaning unit, usually set on the front side of the roller brush groove 11 (i.e., the front end of the cleaning head's travel direction), and it needs to be able to flexibly switch between the extended state and the retracted state when close to or away from the working surface, ensuring that it fits tightly against the working surface when needed and detaches when not needed to avoid wear or hinder the movement of the equipment. The transmission mechanism 41, as an intermediate component connecting the drive mechanism 60 and the scraper body 42, needs to be connected at one end to the scraper body 42 on the front side of the roller brush groove 11, and at the other end to the drive mechanism 60 of the cleaning head. It also needs to be close to the inner wall of the roller brush groove 11 to save space. This requires the transmission mechanism 41 to extend from the roller brush groove 11 to the front scraper body 42, and its movement trajectory needs to follow the contour of the roller brush groove 11. Since the contour of the roller brush groove 11 is mostly an arc, U-shape, or other non-linear shape adapted to the cleaning unit, the transmission mechanism 41 must be equipped with main elastic deformation parts on the roller brush groove 11 to drive the scraper body 42 to move towards or away from the working surface. By adapting the deformation to the contour change of the roller brush groove 11, the power of the drive mechanism 60 is converted into the movement direction required by the scraper body 42.

[0087] For example, when the roller brush groove 11 is arc-shaped (adapted to a cylindrical roller brush), the area of ​​the elastic sheet structure corresponding to the arc-shaped section of the roller brush groove 11 can be set as the main deformation part of the transmission mechanism 41. When the transmission mechanism 41 moves forward and drives the scraper body 42 close to the working surface, the elastic sheet structure bends downward along the arc-shaped contour of the roller brush groove 11, and changes the direction of power transmission through deformation, ensuring that the scraper body 42 can extend basically perpendicular to the working surface. When the transmission mechanism 41 moves backward and drives the scraper body 42 to retract, the elastic sheet structure extends upward along the arc-shaped contour of the roller brush groove 11, driving the scraper body 42 to smoothly detach from the working surface.

[0088] In this embodiment, the thickness of the elastic sheet structure is less than the wall thickness of the roller brush groove 11, providing a structural prerequisite for its flexible deformation on the roller brush groove 11. If the thickness of the elastic sheet structure is too thick, even if the deformation part is set on the roller brush groove 11, it will be difficult to adapt to the arc or U-shaped contour through bending, rebound, and other deformations. On the contrary, it may cause transmission jamming due to excessive rigidity. Moreover, the design purpose of saving internal space of the accommodating cavity 30 through the thin design of the elastic sheet structure will be meaningless. However, by arranging the main elastic deformation part of the elastic sheet structure on the roller brush groove 11, the thin elastic sheet structure can meet the two requirements of adapting to the contour of the roller brush groove 11 and transmitting power. The setting of the deformation part on the roller brush groove 11 allows the transmission mechanism 41 to complete the deformation and transmission by utilizing only the support surface of the roller brush groove 11 itself, which further enhances the space utilization of the accommodating cavity 30 and avoids the cleaning head being too large due to the dispersed layout of components.

[0089] In summary, by arranging the main elastic deformation parts of the elastic sheet structure on the roller brush groove 11, the transmission mechanism 41 can smoothly adjust its movement direction through elastic deformation, regardless of whether it moves forward or backward. This allows the scraper body 42 to stably switch states, solving the problem of the transmission mechanism 41 being difficult to adapt to irregular contours and prone to jamming. Furthermore, the thin design of the elastic sheet structure and the layout of the deformation parts on the roller brush groove 11 keep the space occupied by the transmission mechanism 41 at a low level. The space freed up in the accommodating cavity 30 can be used to add other functional components, improving the overall performance of the cleaning head.

[0090] Based on any of the above embodiments, in one embodiment, please refer to the appendix to the instruction manual. Figures 5-6 Given that the transmission mechanism 41 at least partially adopts an elastic sheet structure and the elastic sheet structure has certain elastic deformation performance, this embodiment adds a first guide structure 411 in the middle of the transmission mechanism 41 and sets a corresponding second guide structure 12 in the accommodating cavity 30 of the first housing 10 to form a guide fit along the transmission direction, thereby improving the force transmission stability of the transmission mechanism 41.

[0091] Understandably, although the elastic sheet structure can adapt to the contour of the roller brush groove 11, its rigidity is relatively weak. During power transmission and deformation, it is prone to problems such as lateral sway and offset due to uneven force. Therefore, the setting of the guide structure is particularly important. It can constrain the movement trajectory of the transmission mechanism 41 and avoid irregular deformation and offset, while not destroying the spatial advantage of the thin transmission structure. This ensures that the state switching of the scraper body 42 is more accurate and smooth, taking into account both structural compactness and transmission stability.

[0092] Specifically, the transmission mechanism 41 is provided with a first guide structure 411 near its middle part. The transmission mechanism 41 is at least partly a thin elastic sheet structure. The middle region is the core area where the deformation is most concentrated and the stress is most complex. The front end is connected to the scraper body 42 to bear the reaction force of the working surface, and the rear end is connected to the drive mechanism 60 to receive power. Whether it is the middle part defined by the central axis or the middle part between the two ends in the length direction, it is a key position where swaying and deviation are likely to occur. Covering the middle region of the transmission mechanism 41 with the layout range of the first guide structure 411 can form a comprehensive trajectory constraint on its main stress deformation area, and more effectively suppress the irregular swaying of the elastic sheet structure during the movement and deformation process. At the same time, taking into account the thin design features of the transmission mechanism 41, the form of the first guide structure 411 does not need to be restricted to a protruding setting, but can be flexibly selected according to the actual structural requirements. All design forms are based on the premise of adapting to the thin structure, without increasing the thickness and space occupation of the transmission mechanism 41, and without destroying the deformation capability of the elastic sheet structure. For example, the first guide structure 411 can also be an opening structure that extends along the transmission direction of the transmission mechanism 41.

[0093] In conjunction with the first guide structure 411, a second guide structure 12 is positioned within the accommodating cavity 30 of the first housing 10. Both the first guide structure 411 and the second guide structure 12 are located between the transmission mechanism 41 and the first housing 10, utilizing the space between them for arrangement. This eliminates the need for an additional independent guide area, maintaining the compactness of the overall cleaning head structure. The design of the second guide structure 12 is not fixed but complements the specific form of the first guide structure 411, ensuring effective guidance along the direction of movement of the transmission mechanism 41. Simultaneously, it reserves a small gap for the normal deformation of the elastic sheet structure, preventing excessive constraint that could hinder deformation. For example, if the first guide structure 411 is a guide hole on the transmission mechanism 41, the second guide structure 12 is correspondingly designed as a guide post, guide rib, or other structure protruding from the inner side of the first housing 10. The width of the second guide structure 12 is slightly smaller than the width of the guide hole, allowing it to smoothly pass through the first guide structure 411 to form a guiding fit. The transmission mechanism 41 is only allowed to move in the direction that drives the scraper body 42 to extend / retract, which effectively avoids lateral sway and prevents the transmission mechanism 41 from separating from the inner wall of the roller brush groove 11 and from interfering with other components in the accommodating cavity 30.

[0094] Please refer to the instruction manual attached. Figures 3-6In one embodiment, the scraper assembly 40 further includes a scraper seat 43. In this embodiment, the scraper seat 43 serves as an intermediate carrier connecting the transmission mechanism 41 and the scraper body 42, receiving the power from the transmission mechanism 41 and transmitting it stably to the scraper body 42. It also provides mounting support for the scraper body 42, enhancing the overall structural rigidity of the scraper assembly 40. The scraper seat 43 is at least partially disposed within the receiving cavity 30. Depending on the different working states of the scraper body 42, the scraper seat 43 moves synchronously between two positions: partially extending out of the receiving cavity 30 and fully contained within the receiving cavity 30. When the scraper body 42 is in the extended state, the scraper seat 43 moves downward and extends out of the receiving cavity 30 as the transmission mechanism 41 pushes it forward to support the scraper body 42 against the working surface. When the scraper body 42 switches to the retracted state, the scraper seat 43 resets with the transmission mechanism 41 and is completely housed within the receiving cavity 30.

[0095] The scraper holder 43 extends along the width of the receiving cavity 30. The extension length can be flexibly designed according to the size of the scraper body 42. If the scraper body 42 is the same width as the cleaning head to achieve full scraping, the scraper holder 43 is designed to be a long strip that matches the width of the receiving cavity 30. If the scraper body 42 has a narrow structure, the scraper holder 43 is shortened to ensure installation compatibility with the scraper body 42.

[0096] The scraper seat 43 and the transmission mechanism 41 may be connected by a hinge or a fixed connection, but this embodiment does not impose strict requirements on them.

[0097] To further constrain the movement trajectory of the scraper holder 43, a third guide structure 431 is provided on both sides of the scraper holder 43 in the width direction, and the connection between the scraper holder 43 and the transmission mechanism 41 is located between the two third guide structures 431. It can be understood that the power application point of the transmission mechanism 41 is located in the middle region of the scraper holder 43, and the third guide structures 431 on both sides form a symmetrical constraint, which can effectively counteract the lateral reaction force received by the scraper body 42 during operation, preventing the scraper holder 43 from swaying or tilting due to uneven force distribution, and ensuring the stability of its movement posture. The third guide structure 431 can be implemented in various ways, and is not limited to being a protrusion, slider, or guide rib, etc. This embodiment does not impose strict limitations or requirements on it.

[0098] Adapted to the third guide structure 431, the first housing 10 is provided with a corresponding fourth guide structure 13 in the accommodating cavity 30. The two form a guiding fit along the movement direction of the scraper seat 43, and the fourth guide structure 13 needs to form a complementary fit with the third guide structure 431. For example, if the third guide structure 431 is a protrusion, slider or guide rib, the fourth guide structure 13 can be designed as a slide, slide rail or guide groove. A certain space gap is reserved between the two in the movement direction of the scraper seat 43, so that the cooperation between the third guide structure 431 and the fourth guide structure 13 forms a two-way lateral constraint, and avoids jamming due to excessive constraint.

[0099] Based on the aforementioned implementation where the transmission mechanism 41 and the first housing 10 are guided and engaged by the first guide structure 411 and the second guide structure 12, this implementation provides a comprehensive guiding system in the middle and both sides of the force transmission path formed by the third guide structure 431, the fourth guide structure 13, and the aforementioned first guide structure 411 and second guide structure 12. This solves the problem of easy swaying and jamming in the transmission of the elastic thin sheet structure. Specifically, the first and second guide structures 12 are located near the middle region of the transmission mechanism 41, constraining the core deformation and stress area of ​​the transmission mechanism 41, suppressing the lateral swaying and irregular deformation of the transmission mechanism 41 itself, and ensuring the stability of the power transmission path. The third and fourth guide structures 13 are located on both sides of the width direction of the scraper seat 43, forming lateral constraints on the movement of the scraper seat 43 and the scraper body 42, preventing the scraper assembly 40 from tilting or shifting to the left or right. The central constraint of the transmission mechanism 41 ensures the stability of the power transmission direction, and the constraints on both sides of the scraper seat 43 ensure the correct motion posture of the actuator. Even if the transmission mechanism 41 has a slight deviation during elastic deformation, or the scraper body 42 is subjected to uneven working reaction force, it can be corrected in time through bidirectional constraints, and the components will not be stuck due to the accumulation of local sway.

[0100] It should be noted that the third guide structure 431 and the fourth guide structure 13 located on both sides of the scraper seat 43 and the first housing 10 are not limited to being a set of corresponding guide components. They can also be configured as multiple guide components that guide and cooperate with each other on both sides of the scraper seat 43 and the first housing 10. It is only necessary to ensure that the transmission mechanism 41 is connected to the middle of the scraper seat 43 and located between the third guide structure 431 and the fourth guide structure 13 arranged on both sides of the scraper seat 43 and the first housing 10.

[0101] like Figures 3-6 As shown, in one embodiment, when the cleaning head also includes a drive mechanism 60 (which is connected to the transmission mechanism 41 and is used to drive the transmission mechanism 41 to drive the scraper body 42 to switch states), the first housing 10 and / or the second housing 20 are provided with a fifth guide structure 50 in the accommodating cavity 30.

[0102] Specifically, the fifth guide structure 50 is located above the elastic sheet structure, which is mainly based on the optimization of the deformation trend of the elastic sheet structure. The elastic sheet structure moves against the inner wall of the brush groove 11. During the power transmission process (mainly the forward movement to drive the scraper body 42 to switch to the extended state), it is prone to upward warping and excessive arching deformation due to its own elastic characteristics and force inertia. Without constraint, this may cause it to detach from the inner wall of the brush groove 11 or interfere with other components in the accommodating cavity 30, ultimately leading to transmission failure of the scraper body 42. By placing the fifth guide structure 50 above the elastic sheet structure, a direct constraint can be formed from the key direction of its elastic deformation, limiting the maximum upward deformation amplitude of the elastic sheet structure and ensuring that it always moves in accordance with the contour of the brush groove 11, avoiding transmission problems caused by irregular deformation.

[0103] The fifth guide structure 50 can be implemented in multiple ways. Based on the foregoing, at least the following three methods are provided: 1. The fifth guide structure 50 is only provided in the first housing 10; II. The fifth guide structure 50 is only provided in the second housing 20; Third, the fifth guide structure 50 is disposed between the first housing 10 and the second housing 20, and is constrained by the first housing 10 and the second housing 20.

[0104] In other words, in specific application scenarios, the fifth guide structure 50 can be set in any of the above-mentioned ways according to the design requirements of the cleaning head. This embodiment does not have strict limitations or requirements in this regard. It is only necessary to ensure that the fifth guide structure 50 is located above the elastic sheet structure so as to play a role in guiding and constraining the elastic sheet structure downward.

[0105] Furthermore, the fifth guide structure 50 and the elastic sheet structure are not limited to using sliding constraints, rolling guidance, or other methods; this embodiment does not impose specific limitations here.

[0106] Based on the above structural foundation, the horizontal height of the fifth guide structure 50 is set to be lower than the horizontal height of the connection between the transmission mechanism 41 and the drive mechanism 60. This height relationship is crucial to ensuring power transmission efficiency and deformation adaptability. The connection between the transmission mechanism 41 and the drive mechanism 60 is the power input end, and its horizontal height is determined by the installation position of the drive mechanism 60 and the transmission path, usually located in a relatively high area. The horizontal height of the fifth guide structure 50 is even lower. This height difference can guide the elastic sheet structure to form a downward deformation tendency to fit the roller brush groove 11, ensuring that the elastic sheet structure is always subject to a downward guiding constraint during power transmission, further strengthening its contact with the inner wall of the roller brush groove 11, and avoiding deviation in the power transmission direction caused by upward deformation. For example, when the drive mechanism 60 drives the transmission mechanism 41 to move forward, the elastic sheet structure bends along the arc contour of the brush groove 11. Because the fifth guide structure 50 is lower in height, it will apply a slight downward constraint force from above to ensure that the deformation trajectory fits the brush groove 11 and does not arch upward. When the transmission mechanism 41 rebounds, the height difference can also guide it to return to its original position smoothly and avoid excessive rebound.

[0107] The fifth guide structure 50, together with the aforementioned first and second guide structures 12 (central constraint) and third and fourth guide structures 13 (lateral constraint), constrains the movement and deformation of the elastic sheet structure. The central guide ensures a stable power transmission path, the lateral guides prevent lateral swaying, and the upper guide suppresses excessive upward deformation, thus improving the overall reliability of the cleaning head.

[0108] This embodiment also provides a cleaning head; please refer to the attached instruction manual. Figures 1-4 In this embodiment, the basic structure of the cleaning head is roughly the same as that of the cleaning head mentioned in the above embodiment. The difference is that this embodiment achieves stable transmission of the scraper body 42 throughout the switching process between the first position and the second position by clarifying the dynamic contact relationship between the transmission mechanism 41 and the inner wall of the roller brush groove 11, combined with the deformation adaptability of the elastic sheet structure. At the same time, it optimizes the space utilization of the accommodating cavity 30. Unlike the above embodiment, which only clarifies the static contact of the scraper body 42 in the extended and retracted states, this embodiment emphasizes the continuous adaptability and structural coordination during the movement process.

[0109] Specifically, the cooperation between the first housing 10 and the second housing 20 continues the aforementioned basic structural logic. The second housing 20 covers at least part of the first housing 10 and encloses it to form a receiving cavity 30. The side of the first housing 10 opposite to the second housing 20 is provided with a roller brush groove 11 protruding towards the receiving cavity 30. This roller brush groove 11 serves as the installation area for the cleaning unit, and its contour design needs to be adapted to the type of cleaning unit (such as a cylindrical roller brush, a strip cleaning block, etc.). Common shapes include arc, U, and trapezoidal. At the same time, it provides a stable support surface for the transmission mechanism 41.

[0110] The scraper assembly 40 includes a connected transmission mechanism 41 and a scraper body 42, wherein the scraper body 42 is at least partially located outside the receiving cavity 30, clearly defining two working positions. The first position is a scraping position in contact with the working surface, where the scraper body 42 adheres to the working surface to remove water stains, sticky stains, etc.; the second position is an idle position detached from the working surface, where the scraper body 42 maintains a distance from the working surface to avoid unnecessary wear or obstruction of the cleaning head movement. The transmission mechanism 41 is used to drive the scraper body 42 to smoothly switch between the two positions. The key to this embodiment is that at least a portion of the transmission mechanism 41 abuts against the inner wall of the roller brush groove 11, and at least this abutting portion is set as an elastic sheet structure. Furthermore, when the scraper body 42 switches between the first and second positions, the elastic sheet structure can continuously maintain abutment against the inner wall of the roller brush groove 11 through elastic deformation, realizing that the elastic sheet structure and the inner wall of the roller brush groove 11 are fully adapted during the movement of the transmission mechanism 41, rather than a positional relationship in a single state.

[0111] For example, the transmission mechanism 41 can be designed to be in contact with the inner wall of the brush groove 11 throughout its entire length, and the entire structure can be configured as an elastic sheet structure. The elastic sheet structure adapts to the contour of the brush groove 11 through deformation throughout its entire length. Alternatively, the transmission mechanism 41 can be configured such that only the key section in contact with the inner wall of the brush groove 11 is configured as an elastic sheet structure, while the remaining sections are rigid structures. This embodiment does not have strict limitations or requirements in this regard, as long as the part in contact with the inner wall of the brush groove 11 must have elastic deformation capability, and this part maintains a contact relationship with the inner wall of the brush groove 11 through deformation throughout the entire process of the scraper body 42 switching positions.

[0112] like Figures 2-4 As shown, the inner wall contour of the brush groove 11 is a non-linear structure (such as an arc or U-shape). When the transmission mechanism 41 drives the scraper body 42 to switch from the second position to the first position (extension process), the transmission mechanism 41 needs to push forward along the inner wall of the brush groove 11. At this time, the elastic sheet structure will bend and stretch with the contour change of the brush groove 11 to ensure that the contact surface does not detach. When the scraper body 42 switches from the first position to the second position (retraction process), the elastic sheet structure recovers its deformation through elastic rebound and resets itself along the inner wall of the brush groove 11, maintaining contact throughout the process. This dynamic deformation is not an irregular deformation, but an adaptive deformation based on the contour of the brush groove 11. Its deformation range is determined by the stroke of the scraper body 42, the contour curvature of the brush groove 11, and the material properties of the elastic sheet structure.

[0113] Understandably, in this embodiment, the roller brush groove 11 of the first housing 10 is not only the installation area of ​​the cleaning unit, but also serves as the dynamic contact reference surface of the transmission mechanism 41. Its contour design directly determines the deformation trajectory of the elastic sheet structure. The contact part of the elastic sheet structure forms a support and fit relationship with the inner wall of the roller brush groove 11. The roller brush groove 11 provides stable support, and the elastic sheet achieves dynamic fit through deformation, avoiding the need to set up a separate transmission track to occupy space. The position switching of the scraper body 42 drives the elastic sheet structure to undergo adaptive deformation, and the deformation, in turn, ensures the smoothness of the switching process. This cooperative relationship allows the elastic sheet structure and the roller brush groove 11 to maintain a close relationship during the movement of the transmission mechanism 41. The power transmission will not be interrupted or the position of the scraper body 42 will be deviated due to the offset of the transmission mechanism 41. At the same time, there is no need to reserve an additional movement gap for the transmission mechanism 41 in the accommodating cavity 30, maximizing the use of the idle space around the roller brush groove 11 and continuing the compact design of the cleaning head.

[0114] In one embodiment, in the direction of travel of the cleaning head, the front end of the transmission mechanism 41 is connected to the scraper body 42, and the rear end is connected to the drive mechanism 60 of the cleaning head. This end-partition connection method along the working direction of the cleaning head ensures that the power transmission path and the dynamic contact movement trajectory of the transmission mechanism 41 are highly consistent. The power of the drive mechanism 60 is input from the rear end of the transmission mechanism 41 and transmitted forward along the length of the accommodating cavity 30 to the front scraper body 42, causing the scraper body 42 to switch between a first position in contact with the working surface and a second position away from the working surface. Throughout the power transmission process, the elastic sheet structure of the transmission mechanism 41 that is in contact with the inner wall of the roller brush groove 11 always undergoes adaptive elastic deformation with the movement trend of the power transmission, thereby maintaining dynamic contact with the inner wall of the roller brush groove 11. The forward connection layout makes the deformation of the elastic sheet structure more regular, avoiding the problem of contact and disengagement caused by irregular deformation due to deviation between the power transmission direction and the movement trajectory.

[0115] Based on the above layout, there is a gap between the elastic sheet structure and the first housing 10. This gap provides sufficient space for the elastic sheet structure to deform during the dynamic contact process. During the switching of the scraper body 42, the elastic sheet structure needs to deform accordingly with the change of the contour of the roller brush groove 11. If there is no gap between the elastic sheet structure and the first housing 10 and they are in direct contact, it will cause rigid friction or compression with the first housing 10 during deformation, which will hinder the deformation process, cause the dynamic contact movement to be stuck, and may even cause the deformation trajectory of the elastic sheet structure to deviate due to compression, thereby destroying the dynamic contact relationship with the inner wall of the roller brush groove 11.

[0116] The design and reservation of this gap can be flexibly adjusted according to the actual deformation requirements of the elastic sheet structure. For details, please refer to the technical solutions provided in the above embodiments. This embodiment will not be repeated here.

[0117] Please refer to the instruction manual attached. Figures 5-6 In one embodiment, consistent with the cleaning head structure provided in the above embodiment, this embodiment adds a first guide structure 411 to the transmission mechanism 41 and a second guide structure 12 to the first housing 10 to form a guide fit along the movement direction of the transmission mechanism 41. This constrains the movement trajectory of the transmission mechanism 41 from the core position, preventing it from lateral swaying during dynamic contact and ensuring that the elastic sheet structure always moves along the inner wall of the roller brush groove 11 and maintains a dynamic contact relationship with the inner wall of the roller brush groove 11 throughout the process.

[0118] Specifically, a first guide structure 411 is provided near the central axis of the transmission mechanism 41, and the first guide structure 411 extends along the movement direction of the transmission mechanism 41. The position of the transmission mechanism 41 near its central axis is the main force-bearing area of ​​the transmission mechanism 41. By placing the first guide structure 411 here, the movement posture of the transmission mechanism 41 can be effectively constrained, and it can be prevented from shifting left or right due to elastic deformation or uneven force, thereby preventing the elastic sheet structure from detaching from the inner wall of the roller brush groove 11 and destroying the dynamic contact relationship.

[0119] Adapted to the first guide structure 411, the first housing 10 is provided with a corresponding second guide structure 12 in the accommodating cavity 30, and both the first and second guide structures 12 are located between the transmission mechanism 41 and the first housing 10, and the two form a guiding fit along the movement direction of the transmission mechanism 41.

[0120] It is understood that this embodiment does not have strict limitations or requirements on the form of the first guide structure 411 and the second guide structure 12, as long as the two are structurally complementary and compatible, and the space occupied by the two in the accommodating cavity 30 is small. For example, the first guide structure 411 can be a guide groove extending along the central axis of the transmission structure, and the second guide structure 12 can be a rib protruding from the inner wall of the first housing 10.

[0121] In this embodiment, the trajectory constraint formed by the first guide structure 411 and the second guide structure 12 from the central axis of the transmission mechanism 41 ensures that the transmission mechanism 41 always moves along the preset path of the inner wall of the roller brush groove 11 when driving the scraper body 42 to switch between the first position and the second position. This prevents the elastic sheet structure from gapping or separating from the inner wall of the roller brush groove 11 due to swaying. The way the guide extends along the direction of movement matches the dynamic contact movement trend of the elastic sheet structure, without generating additional movement resistance. This ensures that the elastic sheet structure can freely deform elastically with the contour of the roller brush groove 11 and always maintain a contact state with the inner wall of the roller brush groove 11.

[0122] Please continue to refer to the instruction manual appendix. Figures 3-6 In one embodiment, the cleaning head also includes a drive mechanism 60. The drive mechanism 60 is connected to the end of the transmission mechanism 41 away from the scraper body 42, providing power input to the transmission mechanism 41 and driving it to switch the scraper body 42 between a first position and a second position.

[0123] One end of the first guide structure 411 is close to the connection between the transmission mechanism 41 and the drive mechanism 60, forming an initial trajectory constraint from the power input end. The other end of the first guide structure 411 extends along the accommodating cavity 30 to the inner wall of the brush groove 11, covering the main section of the transmission mechanism 41 that is in contact with the brush groove 11, forming a guide coverage from the power end to the contact area.

[0124] In this embodiment, by limiting the specific layout of the first guide structure 411 on the transmission mechanism 41, and based on the first guide structure 411 being set along the central axis of the transmission mechanism 41, the transmission mechanism 41, from receiving power to driving the scraper body 42 to switch positions, its body structure is basically under the guidance and constraint of the first guide structure 411 and the second guide structure 12, avoiding swaying due to power transmission impact or uneven deformation, and ensuring that the elastic sheet structure always adheres to the inner wall of the roller brush groove 11, thereby adapting to the compact layout requirements of the accommodating cavity 30.

[0125] The cleaning head structure is basically the same as that provided in the above embodiments, such as Figures 3-6 As shown, in one embodiment, based on the case where the cleaning head also includes a drive mechanism 60, the first housing 10 and / or the second housing 20 are provided with a fifth guide structure 50 located in the receiving cavity 30.

[0126] In the direction of the cleaning head's travel, the fifth guide structure 50 at least partially overlaps with the horizontal projection of the elastic sheet structure. This arrangement allows the fifth guide structure 50 to act on the area where the elastic sheet structure mainly undergoes elastic deformation, suppressing the risk of the elastic sheet structure warping and detaching upwards from above. This ensures that the constraint effect directly acts on the section of the elastic sheet structure that abuts against the inner wall of the roller brush groove 11, avoiding dynamic abutment failure caused by constraint misalignment.

[0127] Regarding the structural form of the fifth guide structure 50, please refer to the relevant description of the fifth guide structure 50 in the cleaning head provided in the above embodiment. This embodiment will not be specifically limited here.

[0128] Furthermore, the fifth guide structure 50 continues the layout of the aforementioned embodiment, in which its horizontal height is less than the horizontal height of the connection between the transmission mechanism 41 and the drive mechanism 60. This ensures that the fifth guide structure 50 guides the elastic sheet structure to always adhere to the inner wall of the roller brush groove 11 with a downward deformation extension trend, forming a synergy with the central constraint of the first and second guide structures 12, which prevents the transmission mechanism 41 from lateral swaying and also prevents it from detaching upwards.

[0129] Based on the above implementation methods, please refer to the appendix of the instruction manual. Figures 3-5 The fifth guide structure 50 is located at the front of the roller brush groove 11 and correspondingly above it. The principle behind this layout is that the front of the roller brush groove 11 is the main section connecting the transmission mechanism 41 to the scraper body 42. The scraper body 42 is positioned in front of the cleaning unit. When switching between the first position (adhering to the working surface) and the second position (detached from the working surface), the elastic sheet structure in this area must withstand the greatest deformation and power transmission load, making it the most vulnerable point for upward warping and detachment from the inner wall of the roller brush groove 11. Placing the fifth guide structure 50 at this location allows it to directly act on the core section where the elastic sheet structure dynamically adheres, forming a downward guiding constraint from above. This ensures that the elastic sheet structure remains adhered to the inner wall of the roller brush groove 11 during elastic deformation, preventing overall dynamic adhesion failure due to excessive deformation.

[0130] In this embodiment, the fifth guide structure 50 can take the form of either a first pressure roller or a first guide block to adapt to different scenario requirements. For example, if the fifth guide structure 50 is a first pressure roller, it can be configured as a cylindrical roller extending along the width direction of the accommodating cavity 30, and can be rotatably mounted on the first housing 10 and / or the second housing 20 through bearings or bushings. The outer peripheral surface of the first pressure roller forms a rolling contact with the upper surface of the elastic sheet structure, thereby reducing the frictional resistance between the fifth guide structure 50 and the transmission mechanism 41. When the elastic sheet structure deforms as the scraper body 42 changes position, the pressure roller can roll synchronously, both suppressing the elastic sheet structure from warping upwards away from the inner wall of the roller brush groove 11 by its own position, and not hindering the dynamic deformation and contact movement of the elastic sheet structure. If the fifth guide structure 50 is a first guide block, it can be configured as a long strip, an arc-shaped block, or a segmented protrusion, etc., and can be integrally or separately mounted on the first housing 10 and / or the second housing 20 by injection molding, screw fixing, etc. The lower surface of the first guide block can be smoothed to form a sliding contact with the upper surface of the elastic sheet structure. A stable constraint is formed through surface contact or line contact, which can also effectively limit the elastic sheet structure from detaching from the inner wall of the roller brush groove 11.

[0131] It should be understood that, regardless of the structural form of the fifth guide structure 50, it must meet the requirement that, in the direction of the cleaning head's travel, its horizontal projection at least partially overlaps with that of the elastic sheet structure, and that its horizontal height (specifically, the horizontal height of the position acting on the elastic sheet structure) is less than the horizontal height at the connection between the transmission mechanism 41 and the drive mechanism 60.

[0132] like Figures 3-5 As shown, taking the implementation of the fifth guide structure 50 using the first pressure roller as an example, the first pressure roller is set at the front of the brush groove 11. The first guide structure 411 and the second guide structure 12 serve as guide components for constraining the middle area and direction of movement of the transmission mechanism 41, covering the deformation area of ​​the middle section of the transmission mechanism 41. The first pressure roller is located at its front, which is precisely aligned with the key area at the front of the brush groove 11 where the elastic thin sheet structure has the largest deformation amplitude and is most prone to upward tilting. This allows the constraint to cover the key path of the transmission mechanism 41 from power transmission to the execution end, ensuring dynamic contact in all aspects.

[0133] Meanwhile, the rotation axis of the first pressure roller is perpendicular to the movement direction of the transmission mechanism 41. The movement direction of the transmission mechanism 41 is the forward and backward direction that drives the scraper body 42 to extend / retract, while the rotation axis of the first pressure roller extends along the width of the accommodating cavity 30. This perpendicular relationship ensures that the outer circumferential surface of the first pressure roller can form a comprehensive and uniform rolling contact with the upper surface of the elastic sheet structure. When the elastic sheet structure moves back and forth with the position switching of the scraper body 42, the pressure roller will rotate freely along the rotation axis perpendicular to the transmission direction, converting sliding friction into rolling friction. This suppresses the upward warping of the elastic sheet through roller pressing, without hindering its dynamic deformation and contact movement, thus avoiding jamming or wear caused by rigid constraints.

[0134] Please continue to refer to the instruction manual appendix. Figures 3-6 Continuing with the example of an embodiment where the cleaning head also includes a drive mechanism 60, and the drive mechanism 60 is connected to the end of the transmission mechanism 41 away from the scraper body 42, the first housing 10 is further provided with a sixth guide structure 14 within the accommodating cavity 30. The sixth guide structure 14 is located near the connection between the transmission mechanism 41 and the drive mechanism 60, and is positioned below the elastic sheet structure and near its lower surface. By adding a sixth guide structure 14 to the power input end of the transmission mechanism 41 to constrain its lower portion, in conjunction with the middle and upper guide structures, the risk of the elastic sheet structure sagging downwards is suppressed from the power source, ensuring that the elastic sheet structure dynamically and stably adheres to the inner wall of the roller brush groove 11.

[0135] Specifically, the sixth guide structure 14 is disposed within the accommodating cavity 30 of the first housing 10 and near the connection between the transmission mechanism 41 and the drive mechanism 60, corresponding to the power input end of the transmission mechanism 41. It constrains the initial motion posture of the transmission mechanism 41 from the source, avoiding trajectory deviation caused by impact during power transmission. The sixth guide structure 14 is located below the elastic sheet structure and close to its lower surface, thus forming a downward-supporting constraint on the power input area of ​​the transmission mechanism 41. This prevents the elastic sheet structure from arching downwards during dynamic deformation (mainly in the early stage of forward movement of the transmission mechanism 41), which would prevent power from being transmitted to the scraper body 42.

[0136] Similar to the aforementioned fifth guide structure 50, the sixth guide structure 14 can adopt either a second pressure roller or a second guide block to adapt to different scenario requirements.

[0137] This embodiment also provides a cleaning device, which includes a body and a cleaning head provided in any of the foregoing embodiments. As can be seen from the foregoing, the transmission mechanism 41 of the cleaning head is at least partially provided with an elastic sheet structure, which greatly saves the space of the accommodating cavity 30 and provides a compact layout basis for the pivotal connection between the cleaning head and the body, so that the whole machine has both flexibility and compact size.

[0138] Specifically, the main body, as the carrier, can integrate related functional components such as power, control, and energy storage. Its structure can be flexibly designed according to the type of equipment (such as the long grip body of a handheld floor scrubber). The cleaning head achieves space optimization due to the elastic thin sheet structure of the transmission mechanism 41. The thin design of the elastic thin sheet structure and its close contact with the inner wall of the roller brush groove 11 eliminates the need to reserve extra space for the transmission track, making the overall size of the cleaning head smaller and thinner.

[0139] The cleaning head and the body are pivotally connected through simple means such as hinges and pivots. The compact structure of the cleaning head does not require the pivoting mechanism to avoid extra space, resulting in a simpler layout. This ensures smooth rotation without making the whole machine look bulky, making the cleaning equipment both lightweight and easy to operate, while also fully covering cleaning dead corners.

Claims

1. A cleaning head, used in cleaning equipment, characterized in that, include: First shell; A second housing, which covers at least a portion of the first housing, and the second housing and the first housing together form an accommodating cavity; The first housing has a roller brush groove protruding into the receiving cavity on the side opposite to the second housing, and the roller brush groove is used to receive the cleaning unit; A scraper assembly includes a connected transmission mechanism and a scraper body; the scraper body is at least partially located outside the receiving cavity and is used to scrape the working surface; the transmission mechanism is used to drive the scraper body to switch between an extended state and a retracted state. Wherein, at least a portion of the transmission mechanism is attached to the inner wall of the roller brush groove, and at least the portion of the transmission mechanism attached to the inner wall of the roller brush groove is configured as an elastic sheet structure, wherein the elastic sheet structure is elastically deformed so that it is attached to the inner wall of the roller brush groove when the scraper body is in the extended state and the retracted state.

2. The cleaning head according to claim 1, characterized in that, In the direction of travel of the cleaning head, the front end of the transmission mechanism is connected to the scraper body, and the rear end of the transmission mechanism is used to connect to the drive mechanism of the cleaning head; There is a gap between the elastic sheet structure and the first housing.

3. The cleaning head according to claim 1, characterized in that, The thickness of the elastic sheet structure is less than the thickness of the groove wall of the roller brush groove; At least a portion of the elastic sheet structure that undergoes elastic deformation is located above the brush groove.

4. The cleaning head according to any one of claims 1-3, characterized in that, The transmission mechanism is provided with a first guide structure located near its center; The first housing is provided with a second guide structure located within the accommodating cavity, the position of which corresponds to the first guide structure. Both the first guide structure and the second guide structure are located between the transmission mechanism and the first housing, and the first guide structure and the second guide structure are guided and cooperated along the movement direction of the transmission mechanism.

5. The cleaning head according to any one of claims 1-3, characterized in that, The scraper assembly further includes a scraper seat, which is at least partially disposed within the accommodating cavity. The opposite ends of the scraper seat are respectively connected to the scraper body and the transmission mechanism, so as to move with the transmission mechanism and drive the scraper body to switch between the extended state and the retracted state. The scraper seat extends along the width direction of the accommodating cavity, and a third guide structure is provided on both sides of the scraper seat in the width direction. The connection between the scraper seat and the transmission mechanism is located between the two third guide structures. The first housing is provided with a fourth guide structure located in the accommodating cavity, which is respectively positioned corresponding to the third guide structure. The fourth guide structure and the third guide structure are guided and cooperated along the movement direction of the scraper seat.

6. The cleaning head according to any one of claims 1-3, characterized in that, Also includes: A drive mechanism, connected to the transmission mechanism, is used to drive the transmission mechanism to move the scraper body; The first housing and / or the second housing are further provided with a fifth guide structure within the accommodating cavity, and the fifth guide structure is located above the elastic sheet structure. The horizontal height of the fifth guide structure is less than the horizontal height of the connection between the transmission mechanism and the drive mechanism.

7. A cleaning head, characterized in that, include: First shell; A second housing, which covers at least a portion of the first housing, and the second housing and the first housing together form an accommodating cavity; The first housing has a roller brush groove protruding into the receiving cavity on the side opposite to the second housing, and the roller brush groove is used to receive the cleaning unit; A scraper assembly includes a connected transmission mechanism and a scraper body; the scraper body is at least partially located outside the receiving cavity for scraping a working surface; the scraper body has a first position in contact with the working surface and a second position detached from the working surface; the transmission mechanism can drive the scraper body to switch between the first position and the second position. Wherein, at least a portion of the transmission mechanism is abutted against the inner wall of the roller brush groove, and at least the portion of the transmission mechanism abutting against the inner wall of the roller brush groove is configured as an elastic sheet structure; when the scraper body switches between the first position and the second position, the elastic sheet structure can undergo elastic deformation to remain abutted against the inner wall of the roller brush groove.

8. The cleaning head according to claim 7, characterized in that, In the direction of travel of the cleaning head, the front end of the transmission mechanism is connected to the scraper body, and the rear end of the transmission mechanism is used to connect to the drive mechanism of the cleaning head; There is a gap between the elastic sheet structure and the first shell.

9. The cleaning head according to claim 7 or 8, characterized in that, The transmission mechanism is provided with a first guide structure located near its central axis, and the first guide structure extends along the movement direction of the transmission mechanism. The first housing is provided with a second guide structure located within the accommodating cavity, the position of which corresponds to the first guide structure. Both the first guide structure and the second guide structure are located between the transmission mechanism and the first housing, and the first guide structure and the second guide structure are guided and cooperated along the movement direction of the transmission mechanism.

10. The cleaning head according to claim 9, characterized in that, Also includes: A drive mechanism is connected to the end of the transmission mechanism away from the scraper body, and the drive mechanism is used to drive the transmission mechanism to drive the scraper body. One end of the first guide structure is located near the connection between the transmission mechanism and the drive mechanism, and the other end of the first guide structure extends along the accommodating cavity to the inner wall of the brush groove.

11. The cleaning head according to claim 9, characterized in that, Also includes: A drive mechanism, connected to the transmission mechanism, is used to drive the transmission mechanism to move the scraper body; The first housing and / or the second housing are provided with a fifth guide structure within the accommodating cavity. In the direction of travel of the cleaning head, the fifth guide structure at least partially overlaps with the horizontal projection of the elastic sheet structure. The horizontal height of the fifth guide structure is less than the horizontal height of the connection between the transmission mechanism and the drive mechanism.

12. The cleaning head according to claim 11, characterized in that, The fifth guide structure is located at the front of the roller brush groove and is correspondingly disposed above the roller brush groove; The fifth guiding structure is configured as either the first pressure roller or the first guide block.

13. The cleaning head according to claim 12, characterized in that, The fifth guide structure is configured as a first pressure roller, and the first pressure roller is disposed at the front of the first guide structure; The rotation axis of the first pressure roller is perpendicular to the direction of movement of the transmission mechanism, so that the first pressure roller can roll the upper surface of the elastic sheet structure.

14. The cleaning head according to claim 7 or 8, characterized in that, Also includes: A drive mechanism is connected to the end of the transmission mechanism away from the scraper body, and the drive mechanism is used to drive the transmission mechanism to drive the scraper body. The first housing is located within the accommodating cavity and is further provided with a sixth guide structure. The sixth guide structure is located near the connection between the transmission mechanism and the driving mechanism, and is located below the elastic sheet structure and near the lower surface of the elastic sheet structure. The sixth guide structure is configured as a second pressure roller or a second guide block.

15. A cleaning device, characterized in that, include: body; as well as The cleaning head as described in any one of claims 1-14, wherein the cleaning head is pivotally connected to the body.

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