A cleaning device

Abstract

This utility model provides a cleaning device, including: a body, a swing arm assembly, a cleaning component, and a first drive assembly; the swing arm assembly includes a first swing arm and a second swing arm, one end of the first swing arm is rotatably connected to the body, and the other end is rotatably connected to the second swing arm, the second swing arm is provided with a mounting part, the cleaning component is mounted on the mounting part, and can move relative to the body between an inward position and an outward swing position under the drive of the swing arm assembly; the first drive assembly is mounted on the body and is used to drive the first swing arm to rotate relative to the body; the second swing arm has a connecting end and a free end formed at both ends in the extending direction, the connecting end is rotatably connected to the first swing arm, and the mounting part is disposed between the free end and the connecting end; the second swing arm has a counterweight structure in the area located between the free end and the mounting part. This utility model can improve the technical problem that insufficient cleaning pressure is easily generated when the cleaning component is in the outward swing position, which affects the cleaning effect.

Description

Technical Field

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

[0002] Currently, with the advancement of living standards and technology, cleaning equipment such as robotic vacuum cleaners, floor scrubbers, and combined sweeper and mop machines are widely used in home environments. To expand the cleaning coverage, these cleaning devices are usually equipped with an outward swing function, allowing the cleaning components to extend beyond the edge of the machine body under the swing arm assembly, thereby effectively cleaning low areas such as sofas and under cabinets.

[0003] However, in actual use, when the cleaning component is in the outward-extending position, due to the large extension distance, it is prone to problems such as center of gravity shift and insufficient structural stability during cleaning operations. This results in uneven distribution of cleaning pressure on the floor, or even insufficient cleaning pressure, thus affecting the cleaning effect. This problem is particularly noticeable in work modes that require stable downward pressure, such as mopping. Summary of the Invention

[0004] This utility model provides a cleaning device to improve the technical problem that insufficient cleaning pressure is easily generated when the cleaning component is in the outward position, which affects the cleaning effect.

[0005] This utility model provides a cleaning device, which includes: a body, a swing arm assembly, a cleaning component, and a first drive assembly; the swing arm assembly includes a first swing arm and a second swing arm, one end of the first swing arm is rotatably connected to the body, and the other end is rotatably connected to the second swing arm, the second swing arm is provided with a mounting part, the cleaning component is mounted on the mounting part, and can move relative to the body between an inward position and an outward position under the drive of the swing arm assembly; the first drive assembly is mounted on the body and is used to drive the first swing arm to rotate relative to the body; wherein, the second swing arm has a connecting end and a free end formed at both ends in the extending direction, the connecting end is rotatably connected to the first swing arm, and the mounting part is disposed between the free end and the connecting end; the second swing arm is provided with a counterweight structure in the area located between the free end and the mounting part.

[0006] The advantages of this design are as follows: By placing the mounting part between the connecting end and the free end of the second swing arm, and setting a counterweight structure in the area between the connecting end and the mounting part, this layout has two advantages. First, when the cleaning component is in the outward swing position, the torque generated by the counterweight structure increases the cleaning pressure of the cleaning component on the ground, improving the cleaning effect. Simultaneously, the counterweight structure also suppresses vibrations generated by the second swing arm during movement. Therefore, it helps ensure stable and efficient cleaning operations even with a large outward swing distance. Second, since the mounting part connected to the cleaning component is located in the middle of the second swing arm (i.e., between the connecting end and the free end), compared to a design where the cleaning component is placed at the free end, this structure allows the cleaning component to be closer to the center of the machine's width when in the retracted position. This ensures that the cleaning components on both sides of the machine's width can form a symmetrical and complete cleaning coverage area at the bottom of the machine after retraction, guaranteeing the corresponding cleaning effect in the retracted position.

[0007] In one embodiment of the present invention, the cleaning device further includes a second drive assembly, the cleaning component is a disc-shaped cloth, the second drive assembly is mounted on a second swing arm and is used to drive the cleaning component to rotate; along the extension direction of the second swing arm, the center of gravity of the second drive assembly is located between the mounting part and the free end, and the second drive assembly forms at least part of the counterweight structure.

[0008] The beneficial effects of this design are that the second drive component can serve the dual functions of drive and counterweight. Specifically, while driving the cleaning component to rotate and perform the cleaning operation, the second drive component's own mass can also function as part of the counterweight structure. This integrated solution eliminates or reduces the need for additional counterweights, which not only simplifies the overall structure and reduces the weight of the equipment but also effectively lowers manufacturing costs.

[0009] In one embodiment of the present invention, the second driving assembly includes a second driving member and a second transmission assembly. The cleaning member is connected to the second transmission assembly, and the second driving member drives the cleaning member to rotate through the second transmission assembly. Along the extension direction of the second swing arm, the second driving member is disposed between the mounting portion and the free end.

[0010] The beneficial effects of this design are as follows: By placing the second drive component between the mounting section and the free end, the overall center of gravity of the second drive assembly is closer to the free end. This layout increases the lever arm length of the second drive assembly's center of gravity relative to the connecting end (i.e., the pivot point), thereby enhancing the counterweight effect. Specifically, the second drive component uses its own weight to generate a downward torque on the second swing arm with the connecting end as the pivot point. This downward torque can be converted into additional ground pressure acting on the cleaning component, thereby improving the stability of the ground cleaning pressure during the cleaning process and enhancing the uniformity and reliability of the cleaning effect.

[0011] In one embodiment of the present invention, the second swing arm includes a mounting cavity, and a counterweight structure is disposed within the mounting cavity.

[0012] The advantages of this design are as follows: By creating a mounting cavity on the second swing arm and placing the counterweight structure within it, two advantages are achieved. First, it avoids the formation of protrusions or additional structures on the outside of the second swing arm, effectively controlling its overall dimensions and resulting in a more compact and aesthetically pleasing design. Second, the mounting cavity provides a closed or semi-closed protective space for the counterweight structure, reducing the impact of dust and moisture on its stability and thus contributing to its overall stability.

[0013] In one embodiment of the present invention, along the extending direction of the second swing arm, the cross-sectional area of ​​the second swing arm near the free end is greater than the cross-sectional area near the connecting end.

[0014] The beneficial effects of this design are as follows: along the extension direction of the second swing arm, the cross-sectional area of ​​the side of the second swing arm near the free end is larger than the cross-sectional area of ​​the side near the connecting end. This design allows for a larger cross-sectional area between the free end and the mounting part, providing ample installation space for the counterweight structure and facilitating its rational arrangement and installation on the second swing arm. Simultaneously, this design also increases the structural weight of the second swing arm near the free end, thereby bringing the center of gravity of the second swing arm closer to the mounting part. This further increases the ground pressure of the cleaning component at the mounting part, improving the cleaning effect.

[0015] In one embodiment of the present invention, along the extension direction of the second swing arm, from the connecting end to the mounting part, the cross-sectional area of ​​the second swing arm gradually increases.

[0016] The beneficial effects of this design are as follows: This gradual structural design not only makes the transition of the second swing arm's shape from the connecting end to the mounting part smoother and more natural, but also effectively disperses the stress concentration caused by the change in cross-section, improving the reliability of the structure, while maintaining the smoothness of the outer contour of the second swing arm and the overall aesthetics.

[0017] In one embodiment of the present invention, the body includes a first receiving cavity. When the cleaning component is in the retracted position, both the first swing arm and the second swing arm are housed in the first receiving cavity. When the cleaning component is in the outward swing position, at least a portion of the first swing arm and the second swing arm extend out of the first receiving cavity.

[0018] The beneficial effects of this design are as follows: By providing a first receiving cavity, when the cleaning component is in the retracted position, this cavity effectively shields the first and second swing arms. This design not only prevents dust accumulation and external impacts, reducing the risk of operational malfunctions in the first and second swing arms, but also, during the retraction of the first and second swing arms, the first receiving cavity acts as a dust barrier, reducing the probability of dust carried by the cleaning component further spreading into the internal installation space of the machine body in the retracted position, thus helping to maintain the cleanliness of the internal installation environment. Furthermore, since the cleaning component is mounted on the mounting portion of the second swing arm, and the mounting portion is located between the free end and the connecting end, when the swing arm assembly retracts into the first receiving cavity, the cleaning component can be positioned closer to the center of the machine body in the width direction. This design allows the cleaning components on both sides of the machine body to be symmetrically distributed in the width direction after retraction, thus forming a symmetrical and complete cleaning coverage area in the retracted position, ensuring the corresponding cleaning effect in the retracted position.

[0019] In one embodiment of the present invention, the first receiving cavity has a lateral opening that allows the second swing arm to enter and exit the first receiving cavity. In the retracted position, the free end of the second swing arm fills the side of the lateral opening facing the first receiving cavity.

[0020] The beneficial effects of this design are as follows: When the second swing arm is retracted into the first receiving cavity, its free end can fill the redundant space near the lateral opening of the first receiving cavity. This layout, on the one hand, makes the machine's overall appearance more coherent and complete, effectively improving its aesthetics. On the other hand, the free end can effectively block flying debris during cleaning operations, reducing the probability of debris entering the first receiving cavity, thereby reducing contamination of the internal installation space and contributing to improved overall protection of the cleaning equipment.

[0021] In one embodiment of the present invention, the cleaning device further includes a lifting assembly, which is mounted on the second swing arm. The cleaning component is vertically connected to the second swing arm via the lifting assembly. Along the extension direction of the second swing arm, the center of gravity of the lifting assembly is located between the mounting portion and the free end, and the lifting assembly forms at least part of the counterweight structure.

[0022] The advantages of this design are as follows: Since the lifting component can perform both lifting and counterweight functions, this design eliminates or reduces the need for additional counterweights. This not only simplifies the overall structure and reduces the weight of the equipment but also effectively lowers manufacturing costs. Furthermore, placing the lifting component in the second swing arm reduces the space occupied by the lifting component inside the machine body, thus facilitating the optimization of the overall internal space layout.

[0023] In one embodiment of the present invention, the lifting assembly includes a third driving member and a third transmission assembly. The cleaning member is connected to the third transmission assembly, and the third driving member drives the cleaning member to lift and lower through the third transmission assembly. Along the extension direction of the second swing arm, the third driving member is disposed between the mounting part and the free end.

[0024] The beneficial effects of this design are as follows: By placing the third drive component between the mounting section and the free end, the overall center of gravity of the lifting assembly is moved closer to the free end. This layout increases the lever arm length of the lifting assembly's center of gravity relative to the connecting end (i.e., the pivot point), thereby enhancing the counterweight effect. Specifically, the third drive component uses its own weight to generate a downward torque on the second swing arm with the connecting end as the pivot point. This torque is directly converted into additional ground pressure acting on the cleaning component, thereby improving the stability of the ground cleaning pressure during the cleaning process and enhancing the uniformity and reliability of the cleaning effect. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram showing the arrangement position between the swing arm assembly and the machine body in a cleaning device provided according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram showing the state of the cleaning component in the cleaning device provided in one embodiment of the present invention when it is in the outward swing position;

[0029] Figure 3 This is a schematic diagram showing the state of the cleaning component in the retracted position in a cleaning device provided in one embodiment of the present invention.

[0030] Figure 4 This is a schematic diagram of the structure of the cleaning component in the outward swing position in one embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of a second swing arm with a counterweight structure in one embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of a structure in which a second drive assembly is provided in the mounting cavity of the second swing arm in one embodiment of the present invention;

[0033] Figure 7 for Figure 6A schematic diagram of the second swing arm after removing the lower cover of the swing arm in the embodiment shown;

[0034] Figure 8 This is an exploded view of a portion of the second swing arm in one embodiment of the present invention;

[0035] Figure 9 This is a schematic diagram of the structure of the swing arm base, the upper cover of the swing arm, and the lower cover of the swing arm after they are closed together in one embodiment of the present utility model;

[0036] Figure 10 This is a bottom schematic diagram of the swing arm assembly housed inside the first receiving cavity in one embodiment of the present invention;

[0037] Figure 11 This is a bottom view of the swing arm assembly extending outside the first receiving cavity in one embodiment of the present invention;

[0038] Figure 12 This is a schematic diagram of a structure in which a lifting assembly is provided in the mounting cavity of the second swing arm in one embodiment of the present invention;

[0039] Figure 13 for Figure 12 A schematic diagram of the structure of the second swing arm after removing the lower cover of the swing arm in the embodiment shown.

[0040] The attached figures are labeled as follows:

[0041] 100. Body; 101. First receiving cavity; 1013. Side opening; 1014. Bottom opening; 102. Guide component; 120. Swing arm assembly; 1201. Mounting part; 121. First swing arm; 122. Second swing arm; 1221. Guide surface; 1222. Connecting end; 1223. Free end; 1224. Mounting cavity; 1225. Swing arm base; 1226. Swing arm upper cover; 1227. Swing arm lower cover; 130. First drive assembly; 140. Cleaning component; 150. Second drive assembly; 151. Second drive component; 152. Second transmission assembly; 180. Lifting assembly; 181. Third drive component; 182. Third transmission assembly; 190. Counterweight structure. Detailed Implementation

[0042] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0043] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0044] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present invention.

[0045] Please see Figures 1 to 13 This utility model provides a cleaning device with a second swing arm 122, which includes a connecting end 1222 and a free end 1223. A mounting portion 1201 for mounting a cleaning component 140 is provided in the area between the connecting end 1222 and the free end 1223, and a counterweight structure 190 is disposed in the area between the connecting end 1222 and the mounting portion 1201. When the cleaning component 140 is in the outward swing position, the torque generated by the counterweight structure 190 not only increases the cleaning pressure of the cleaning component 140 on the ground, improving the cleaning effect, but also suppresses the vibration generated by the second swing arm 122 during movement. Therefore, it is beneficial to ensure that the cleaning component 140 achieves stable and efficient cleaning operations even with a large outward swing distance.

[0046] The cleaning equipment provided in the embodiments of this utility model can be a self-moving cleaning robot or a handheld floor scrubber. The self-moving cleaning robot can be a mopping robot or a sweeping and mopping robot, etc. In the following embodiments, a self-moving cleaning robot is used as an example to describe some of its components.

[0047] Please see Figures 1 to 3 The cleaning device provided in this embodiment includes: a body 100, a swing arm assembly 120, a cleaning component 140, and a first drive assembly 130.

[0048] The internal structure of the body 100 has a storage space to accommodate various components of the cleaning equipment. The body 100 can be of any shape, such as circular, elliptical, or D-shaped. The cleaning equipment also includes a drive system conventionally found in existing cleaning equipment. This drive system is located below the body 100 to enable the cleaning equipment to move independently. The specific structure of the drive system and its connection to the body 100 can be found in descriptions of relevant structures in existing cleaning equipment and will not be repeated here.

[0049] In addition, the cleaning equipment may also include a sensing system and a control system. The sensing system and control system are electrically connected. The sensing system includes an LDS (Laser Distance Sensor) located on top of the body 100, a buffer and vision sensor located at the front of the body 100, and an edge sensor located on the front side wall of the body 100. Among them, the LDS, buffer, and edge sensor can all measure or sense distance to obtain the distance between the edge of the body 100 and obstacles. The control system controls the cleaning equipment to perform corresponding actions based on this distance. For example, controlling the cleaning equipment to perform obstacle avoidance, edge cleaning, and return to the base station.

[0050] Please see Figures 2 to 4 The swing arm assembly 120 includes a first swing arm 121 and a second swing arm 122. One end of the first swing arm 121 is rotatably connected to the machine body 100, and the other end of the first swing arm 121 is rotatably connected to the second swing arm 122. The second swing arm 122 is provided with a mounting part 1201, on which the cleaning component 140 is mounted and can move relative to the machine body 100 between an inward position and an outward position under the drive of the swing arm assembly 120.

[0051] It should be noted that the rotational connection between the first swing arm 121 and the body 100, and between the first swing arm 121 and the second swing arm 122, can be achieved using various structural methods, including but not limited to shaft connection or slewing bearing connection. The connection between the cleaning component 140 and the mounting part 1201 can be a rotational connection, a fixed connection, etc. The connection structure between the cleaning component 140 and the mounting part 1201 is not limited; for example, it can be a snap-fit ​​structure for quick engagement, a magnetic connection using a magnetic attraction structure, or a detachable fastening connection using screws. In actual product design, the specific installation method of the cleaning component 140 on the mounting part 1201 needs to comprehensively consider factors such as its replacement frequency and the stress conditions during operation to select the optimal connection method.

[0052] The cleaning component 140 may be a mop assembly, such as a disc mop, a conveyor belt mop, or a roller mop; it may also be other cleaning components such as a cleaning brush. Exemplarily, in this embodiment, the cleaning component 140 is a disc mop, which is rotatably mounted on the mounting portion 1201. The cleaning component 140 may be configured for wet cleaning or dry cleaning, and this embodiment does not limit this. The cleaning component 140 has at least an inwardly recessed position relative to the body 100 (e.g., ...). Figure 3 (as shown) and the outer swing position (as shown) Figure 4 (As shown). In the retracted position, the cleaning component 140 retracts to below the body 100. In the outward position, the cleaning component 140 extends at least partially to the outside of the body 100.

[0053] Optionally, in one embodiment, the cleaning device may further include a side brush and a roller brush, both located at the bottom of the body 100. Along the traveling direction of the body 100, both the side brush and the roller brush are positioned in front of the cleaning component 140. The side brush may be located at the edge of the body 100 and can rotate via a rotating mechanism, such as a motor, a combination of a motor and a reducer. When the side brush rotates, it can gather debris from the edge of the body 100 towards the inside of the body 100, thereby increasing the cleaning range of the cleaning device. The side brush can be a rubber strip or a bristle brush, as long as it can clean the ground; there is no limitation here. The roller brush is rotatably disposed within a roller brush cavity at the bottom of the body 100. During its rotation, the roller brush can sweep away debris on the ground. The number of roller brushes can be set according to specific requirements; this embodiment does not limit the number.

[0054] Please see Figure 1 and Figure 2 The first drive assembly 130 is mounted on the body 100 and is used to drive the first swing arm 121 to rotate relative to the body 100. The first drive assembly 130 can be any mechanism capable of driving the first swing arm 121 to rotate relative to the body 100, such as a motor and gear structure or a motor and worm gear structure. Specifically, the first drive assembly 130 drives the first swing arm 121 to rotate, the first swing arm 121 drives the second swing arm 122 to rotate, and in turn drives the cleaning component 140 mounted on the second swing arm 122 to move between an inward position and an outward swing position.

[0055] In the retracted position, both the cleaning component 140 and the swing arm assembly 120 are recessed below the bottom of the body 100. This makes the overall structure of the cleaning equipment compact, improving its maneuverability and making it suitable for routine cleaning of large, flat areas such as living rooms. In the outward-extending position, at least a portion of the cleaning component 140 and the swing arm assembly 120 extends outward to the outside of the body 100, allowing the cleaning component 140 to reach horizontally into low spaces under furniture such as sofas and cabinets for cleaning.

[0056] In this embodiment, when in the outward-swinging position, the edge of the cleaning component 140 can either extend completely beyond the edge of the body 100 or partially extend beyond the edge of the body 100. Optionally, please refer to... Figure 4In one embodiment, when the cleaning component 140 is in the outward-extending position, the minimum distance from the edge of the cleaning component 140 to the edge of the body 100 is greater than or equal to zero. That is, in the outward-extending position, the cleaning component 140 can extend completely outside the outline of the body 100. This configuration, since the entire cleaning component 140 can extend completely outside the body 100, expands the cleaning coverage area of ​​the cleaning component 140 outside the body 100. Therefore, it further enhances the ability of the cleaning component 140 to penetrate into low-ceilinged spaces, thereby improving the cleaning effect of the cleaning component 140 in low-ceilinged spaces.

[0057] In this embodiment, the number of swing arm assemblies 120 is not limited. For example, in one embodiment, the cleaning device may have two swing arm assemblies 120 and two sets of cleaning components 140, with the two sets of cleaning components 140 located on both sides of the width direction of the body 100. Each swing arm assembly 120 is connected to a corresponding set of cleaning components 140. Both sets of cleaning components 140 can achieve an outward swing function during the operation of the corresponding swing arm assembly 120.

[0058] In another embodiment, only one set of swing arm assembly 120 is provided, and two sets of cleaning components 140 are provided, with the two sets of cleaning components 140 located on both sides of the width direction of the body 100. The swing arm assembly 120 is connected to only one set of cleaning components 140. In this embodiment, only the set of cleaning components 140 connected to the swing arm assembly 120 can realize the outward swing function during the operation of the swing arm assembly 120, while the other set of cleaning components 140 does not have the swing arm assembly 120 at its installation position, and therefore does not have the outward swing function.

[0059] Please see Figure 4 and Figure 5 The second swing arm 122 has a connecting end 1222 and a free end 1223 at its two ends in its extending direction, wherein the connecting end 1222 is rotatably connected to the first swing arm 121. A mounting portion 1201 is disposed between the free end 1223 and the connecting end 1222, meaning the connection between the cleaning component 140 and the second swing arm 122 is located between the free end 1223 and the connecting end 1222. The extending direction of the second swing arm 122 is its length direction. A counterweight structure 190 is provided in the area between the free end 1223 and the mounting portion 1201 of the second swing arm 122.

[0060] It should be noted that the mounting part 1201 can be positioned on the second swing arm 122 according to specific requirements: it can be positioned in the center between the connecting end 1222 and the free end 1223, or it can be positioned biased towards either the connecting end 1222 or the free end 1223. For example, in this embodiment, the mounting part 1201 is approximately located in the middle between the connecting end 1222 and the free end 1223.

[0061] The counterweight structure 190 can be a separately installed counterweight block, or it can be implemented using functional components inherent in the cleaning equipment. For example, the functional components can be a drive component for driving the cleaning component 140 to operate, a lifting component for controlling the lifting and lowering of the cleaning component 140, etc. It should be noted that the counterweight structure 190 can adopt any of these forms, or a combination of two or more of these structures.

[0062] In this embodiment, the cleaning device has a mounting portion 1201 positioned between the connecting end 1222 and the free end 1223 of the second swing arm 122, and a counterweight structure 190 configured in the area between the connecting end 1222 and the mounting portion 1201. This configuration has several advantages. First, when the cleaning component 140 is in the outward swing position, the torque generated by the counterweight structure 190 increases the cleaning pressure of the cleaning component 140 against the ground, improving the cleaning effect. Simultaneously, the counterweight structure 190 also suppresses vibrations generated by the second swing arm 122 during movement. Therefore, it helps ensure stable and efficient cleaning operations for the cleaning component 140 even with a large outward swing distance. Second, since the mounting portion 1201 connected to the cleaning component 140 is located in the middle of the second swing arm 122 (i.e., between the connecting end 1222 and the free end 1223), compared to a configuration where the cleaning component 140 is located at the free end 1223, this configuration allows the cleaning component 140 to be closer to the center of the width of the body 100 when in the inward position. This allows the cleaning components 140 on both sides of the width of the body 100 to form a symmetrical and complete cleaning coverage area at the bottom of the body 100 after retraction, ensuring the corresponding cleaning effect in the retracted position.

[0063] Please see Figure 5 In one embodiment of this utility model, the cleaning device further includes a second drive assembly 150. The cleaning component 140 is a disc-shaped cloth. The second drive assembly 150 is mounted on the second swing arm 122 and is used to drive the cleaning component 140 to rotate. The second drive assembly 150 can be any structure capable of driving the cleaning component 140 to perform rotational operations, such as a combination of a motor and a gear assembly or a combination of a motor and a worm gear assembly. Along the extending direction of the second swing arm 122, the center of gravity of the second drive assembly 150 is located between the mounting portion 1201 and the free end 1223, and the second drive assembly 150 forms at least a portion of the counterweight structure 190.

[0064] Specifically, in one embodiment, the counterweight structure 190 may be entirely composed of the second drive assembly 150. In other embodiments, the counterweight structure 190 may also be composed of the second drive assembly 150 combined with additional structural components (e.g., counterweight blocks) to meet different counterweight requirements.

[0065] In this embodiment, the second drive component 150 can serve as both a drive and a counterweight. Specifically, while driving the cleaning component 140 to rotate and perform cleaning operations, the second drive component 150's own mass can also serve as part of the counterweight structure 190. Therefore, this integrated solution can eliminate or reduce the use of additional counterweights, which not only helps simplify the overall structure and reduce the weight of the equipment, but also effectively reduces manufacturing costs.

[0066] Furthermore, by positioning the second drive assembly 150 between the mounting portion 1201 and the free end 1223 of the second swing arm 122, space on the side of the connection area between the second swing arm 122 and the first swing arm 121 can be freed up. This allows for a more compact structural design on the side of the second swing arm 122 closer to the first swing arm 121, which in turn facilitates a tighter folding and retraction of the second swing arm 122 relative to the first swing arm 121 when the cleaning component 140 retracts, thereby reducing the space occupied by the entire swing arm assembly 120 within the internal space of the body 100.

[0067] Please see Figures 5 to 7 In one embodiment of the present invention, the second drive assembly 150 includes a second drive member 151 and a second transmission assembly 152. The cleaning member 140 is connected to the second transmission assembly 152, and the second drive member 151 drives the cleaning member 140 to rotate through the second transmission assembly 152. Along the extending direction of the second swing arm 122, the second drive member 151 is disposed between the mounting portion 1201 and the free end 1223.

[0068] Specifically, in this embodiment, the second driving component 151 is a drive motor, the input end of the second transmission assembly 152 is connected to the output shaft of the drive motor, and the output end of the second transmission assembly 152 is connected to the cleaning component 140. The operation of the second driving component 151 drives the second transmission assembly 152, which in turn drives the cleaning component 140. The second driving component 151 can be a motor, a combination of a motor and a reducer, a hydraulic motor, etc., and the second transmission assembly 152 can be a gear assembly, a synchronous belt assembly, a worm gear structure, etc.

[0069] In this embodiment, by placing the second driving member 151 between the mounting portion 1201 and the free end 1223, the overall center of gravity of the second driving assembly 150 is closer to the free end 1223. This arrangement increases the lever arm length relative to the connecting end 1222 (i.e., the pivot point), thereby enhancing the counterweight effect. Specifically, the second driving member 151 uses its own weight to generate a downward torque on the second swing arm 122 with the connecting end 1222 as the pivot point. This torque is directly converted into additional ground pressure acting on the cleaning member 140, thereby improving the stability of the ground cleaning pressure during the cleaning process and improving the uniformity and reliability of the cleaning effect.

[0070] Please see Figure 8 and Figure 9 In one embodiment of this utility model, the second swing arm 122 includes a mounting cavity 1224, and a counterweight structure 190 is disposed within the mounting cavity 1224. Specifically, along the height direction of the second swing arm 122, the second swing arm 122 includes a swing arm base 1225, a swing arm upper cover 1226, and a swing arm lower cover 1227, which are respectively mounted on the upper and lower sides of the swing arm base 1225. The swing arm upper cover 1226, the swing arm base 1225, and the swing arm lower cover 1227 together enclose the mounting cavity 1224. When the counterweight structure 190 is the aforementioned second drive assembly 150, that is, the second drive assembly 150 is disposed within the mounting cavity 1224.

[0071] By providing a mounting cavity 1224 on the second swing arm 122 and placing the counterweight structure 190 within it, the following advantages are achieved: First, it avoids the formation of protrusions or additional structures on the outside of the second swing arm 122, effectively controlling the overall dimensions of the second swing arm 122 and resulting in a more compact design and a simpler, more aesthetically pleasing appearance. Second, the mounting cavity 1224 provides a closed or semi-closed protective space for the counterweight structure 190, reducing the impact of dust and moisture erosion on the counterweight structure 190 and ensuring its stability during use.

[0072] Please see Figure 4 and Figure 5 In one embodiment of this utility model, along the extending direction of the second swing arm 122, the cross-sectional area of ​​the side of the second swing arm 122 near the free end 1223 is larger than the cross-sectional area of ​​the side near the connecting end 1222. This arrangement allows the area between the free end 1223 and the mounting portion 1201 to have a larger cross-sectional area, providing ample installation space for the counterweight structure 190 and facilitating a more rational arrangement and installation of the counterweight structure 190. Simultaneously, this arrangement also increases the structural weight of the second swing arm 122 near the free end 1223, allowing the center of gravity of the second swing arm 122 to be positioned closer to the mounting portion 1201. This further increases the working pressure of the cleaning component 140 on the ground at the mounting portion 1201, improving the cleaning effect.

[0073] Please see Figure 4 and Figure 5In one embodiment of this utility model, along the extension direction of the second swing arm 122, from the connecting end 1222 to the mounting part 1201, the cross-sectional area of ​​the second swing arm 122 gradually increases. This gradual structural design not only makes the transition of the shape of the second swing arm 122 from the connecting end 1222 to the mounting part 1201 smoother and more natural, but also effectively disperses the stress concentration caused by the change in cross-section, improves the reliability of the structure, and maintains the smoothness of the external contour and the overall aesthetics.

[0074] Please see Figure 3 and Figure 10 In one embodiment of this utility model, the body 100 includes a first receiving cavity 101. When the cleaning component 140 is in the retracted position, such as... Figure 3 As shown, both the first swing arm 121 and the second swing arm 122 are housed within the first receiving cavity 101. When the cleaning component 140 is in the outward swing position, as... Figure 5 and Figure 6 As shown, at least a portion of the first swing arm 121 and the second swing arm 122 both extend outside the first receiving cavity 101. Figure 2 As shown, the first receiving cavity 101 has a bottom opening 1014 and a side opening 1013. The side opening 1013 faces outward in the circumferential direction of the body 100 to allow the swing arm assembly 120 to enter and exit the first receiving cavity 101. The bottom opening 1014 faces the side of the surface to be cleaned, and the mounting part 1201 facing the side of the surface to be cleaned is exposed through the bottom opening 1014 for connecting the cleaning component 140.

[0075] It should be noted that, as Figure 4 As shown, along the height direction of the body 100, the projected outline of the first receiving cavity 101 does not exceed the projected outline of the body 100, that is, the entire first receiving cavity 101 is located below the body 100. This ensures that when the first swing arm 121 and the second swing arm 122 are housed in the first receiving cavity 101, the entire swing arm assembly 120 does not exceed the outer periphery of the body 100, thereby ensuring the structural compactness of the entire cleaning device when the cleaning component 140 is in the retracted position.

[0076] In this embodiment, by providing a first receiving cavity 101, when the cleaning component 140 is in the retracted position, the first receiving cavity 101 can provide effective shielding space for the first swing arm 121 and the second swing arm 122. This design not only prevents dust accumulation and external impacts, reducing the risk of operational failures in the first swing arm 121 and the second swing arm 122, but also, during the retraction process of the first swing arm 121 and the second swing arm 122, the first receiving cavity 101 can also block dust, that is, it can reduce the probability that the dust carried by the cleaning component 140 will further diffuse into the installation space inside the machine body 100 when in the retracted position, thereby helping to maintain the cleanliness of the installation environment inside the machine body 100.

[0077] Furthermore, since the cleaning component 140 is mounted on the mounting portion 1201 of the second swing arm 122, and the mounting portion 1201 is located between the free end 1223 and the connecting end 1222, the cleaning component 140 can be closer to the centerline of the width direction of the body 100 when the swing arm assembly 120 is retracted into the first receiving cavity 101. This arrangement allows the cleaning components 140 on both sides of the width direction of the body 100 to be symmetrically distributed on both sides of the width direction of the body 100 after retraction. This ensures that when the cleaning components 140 are in the retracted position, they are symmetrically distributed on both sides of the width direction, thereby forming a symmetrical and complete cleaning coverage area in the retracted position, ensuring the corresponding cleaning effect in the retracted position.

[0078] Please see Figure 3 and Figure 10 In one embodiment of the present invention, in the retracted position, the free end 1223 of the second swing arm 122 fills the side of the lateral opening 1013 facing the first receiving cavity 101. Specifically, the free end 1223 may be flush with the lateral opening 1013 or may not be flush with it. Optionally, in this embodiment, the free end 1223 is substantially flush with the lateral opening 1013.

[0079] With this configuration, when the second swing arm 122 is retracted into the first receiving cavity 101, the free end 1223 can fill the redundant space near the lateral opening 1013 of the first receiving cavity 101. This arrangement, on the one hand, makes the overall outline of the machine body 100 more coherent and complete, effectively improving the aesthetics of the entire machine. On the other hand, the free end 1223 can also effectively block the debris thrown up during the operation of the cleaning component 140, reducing the probability of debris entering the first receiving cavity 101, thereby reducing contamination of the internal installation space of the machine body 100 and helping to improve the overall protective performance of the cleaning equipment.

[0080] During the process of the cleaning component 140 moving from the outward swing position to the inward retraction position, the second swing arm 122 needs to fold inward relative to the first swing arm 121, so that the bending angle between them gradually decreases from β to α. To achieve this controllable folding action, the movement trajectory of the second swing arm 122 needs to be guided and constrained. Based on this, in one embodiment of this utility model, please refer to... Figure 10 and Figure 11 The body 100 is provided with a guide member 102, and the second swing arm 122 is provided with a guide surface 1221. During the process of the second swing arm 122 entering and exiting the first receiving cavity 101, the guide member 102 and the guide surface 1221 contact and cooperate to limit the movement trajectory of the second swing arm 122.

[0081] Please see Figure 10Specifically, the guide member 102 is disposed at the lateral opening 1013 of the first receiving cavity 101, and the guide surface 1221 is disposed on the side of the second swing arm 122 facing the guide member 102. The guide surface 1221 can be an arc surface, an inclined surface, or a plane, etc.

[0082] The guide member 102 can be a roller, which is rotatably connected to the wall of the first receiving cavity 101 via a rotating shaft. During the movement of the second swing arm 122 into and out of the first receiving cavity 101, the roller rolls along the guide surface 1221, thereby forming a contact engagement between the two and restricting the movement trajectory of the second swing arm 122. Alternatively, the guide member 102 can be an arcuate surface disposed on the wall of the first receiving cavity 101. During the movement of the second swing arm 122 into and out of the first receiving cavity 101, the arcuate surface slides along the guide surface 1221, thereby forming a contact engagement between the two and restricting the movement trajectory of the second swing arm 122. Optionally, in this embodiment, the guide member 102 is a roller. The roller is rotatably connected to the wall of the first receiving cavity 101 via a rotating shaft.

[0083] During the process of the second swing arm 122 entering the first receiving cavity 101, the roller rolls along the guide surface 1221. Through the contact between the two, the roller guides the second swing arm 122 to rotate relative to the first swing arm 121, causing the bending angle between the second swing arm 122 and the first swing arm 121 to gradually decrease from β to α, until the second swing arm 122 and the first swing arm 121 are fully received within the first receiving cavity 101, thus completing the folding and retracting action between the first swing arm 121 and the second swing arm 122. During the process of the second swing arm 122 swinging out of the first receiving cavity 101, the roller rolls in the opposite direction along the guide surface 1221. Through the contact between the two, the roller guides the second swing arm 122 to rotate in the opposite direction relative to the first swing arm 121, causing the bending angle between the second swing arm 122 and the first swing arm 121 to increase from α to β, until the second swing arm 122 is completely swung out of the first receiving cavity 101, thus completing the unfolding action between the first swing arm 121 and the second swing arm 122.

[0084] In this embodiment, the guide member 102 on the body 100 and the guide surface 1221 on the second swing arm 122 cooperate with each other, contacting each other as the second swing arm 122 enters and exits the first receiving cavity 101, thereby guiding and constraining the movement trajectory of the second swing arm 122. Specifically, when the second swing arm 122 enters the first receiving cavity 101, the guide member 102 and the guide surface 1221 cooperate to gradually fold the second swing arm 122 relative to the first swing arm 121, so that the bending angle between them gradually decreases. When the second swing arm 122 swings out of the first receiving cavity 101, the guide member 102 and the guide surface 1221 cooperate to guide the second swing arm 122 to gradually unfold relative to the first swing arm 121, so that the bending angle between them gradually increases. Through the above method, the movement trajectory of the second swing arm 122 can be controlled, ensuring that it can more smoothly complete the folding and unfolding actions relative to the first swing arm 121 along a predetermined path.

[0085] In one embodiment, an elastic element may be provided between the first swing arm 121 and the second swing arm 122. The two ends of the elastic element are respectively connected to the first swing arm 121 and the second swing arm 122, and it can elastically deform during the rotation of the second swing arm 122 relative to the first swing arm 121. Specifically, during the process of the second swing arm 122 entering the first receiving cavity 101, the second swing arm 122 rotates relative to the first swing arm 121, and the elastic element undergoes elastic deformation and stores elastic potential energy. When the second swing arm 122 slides out of the first receiving cavity 101, the elastic potential energy stored in the elastic element is released, driving the second swing arm 122 to rotate in the opposite direction relative to the first swing arm 121, thereby achieving automatic deployment of the second swing arm 122 relative to the first swing arm 121.

[0086] Please see Figure 12 and Figure 13 In one embodiment of this utility model, the cleaning component 140 is a disc-shaped rag. The cleaning device also includes a lifting assembly 180, which is mounted on the second swing arm 122. The cleaning component 140 is vertically connected to the second swing arm 122 via the lifting assembly 180, and is specifically positioned at a raised position and a mopping position relative to the machine body 100. In the raised position, the cleaning component 140 is detached from the surface to be cleaned. In the mopping position, the cleaning component 140 contacts the surface to be cleaned to perform the cleaning operation. Along the extending direction of the second swing arm 122, the center of gravity of the lifting assembly 180 is located between the mounting portion 1201 and the free end 1223, and the lifting assembly 180 forms at least a portion of the counterweight structure 190.

[0087] Specifically, the lifting assembly 180 is connected to the mounting portion 1201 of the second swing arm 122. The cleaning component 140 is connected to the mounting portion 1201 via the lifting assembly 180, thereby achieving connection with the second swing arm 122. The specific structure of the lifting assembly 180 is not limited; for example, it can be a combination of a motor and a lead screw and nut, a combination of a motor and a gear and rack, a motor and a connecting rod, etc. It should be noted that the lifting assembly 180 that drives the cleaning component 140 to rise and fall is a conventional structural setting in existing cleaning equipment, and will not be described in detail in this embodiment.

[0088] In this embodiment, with the lifting assembly 180 provided, in one embodiment, the counterweight structure 190 may be entirely composed of the lifting assembly 180. In another embodiment, the counterweight structure 190 may also be composed of the lifting assembly 180, the second drive assembly 150, and / or additional structural components (e.g., counterweight blocks) to meet different counterweight requirements.

[0089] In this embodiment, the lifting assembly 180 can perform both lifting and counterweight functions. Therefore, this arrangement can eliminate or reduce the use of additional counterweights, which not only helps to simplify the overall structure and reduce the weight of the equipment, but also effectively reduces manufacturing costs. In addition, placing the lifting assembly 180 in the second swing arm 122 can reduce the space occupation problem caused by placing the lifting assembly 180 inside the machine body 100, thereby making it more conducive to optimizing the overall space layout inside the machine body 100.

[0090] Please see Figure 12 and Figure 13 In one embodiment of the present invention, the lifting assembly 180 includes a third driving member 181 and a third transmission assembly 182. The cleaning member 140 is connected to the third transmission assembly 182, and the third driving member 181 drives the cleaning member 140 to rise and fall through the third transmission assembly 182. Along the extending direction of the second swing arm 122, the third driving member 181 is disposed between the mounting portion 1201 and the free end 1223.

[0091] Specifically, in this embodiment, the third driving component 181 is a drive motor, the input end of the third transmission component 182 is connected to the output shaft of the drive motor, and the output end of the third transmission component 182 is connected to the cleaning component 140. The operation of the third driving component 181 drives the third transmission component 182, which in turn drives the cleaning component 140. The third driving component 181 can be a motor, a combination of a motor and a reducer, a hydraulic motor, etc., and the third transmission component 182 can be a combination of a gear assembly and a lead screw and nut assembly, a combination of a synchronous belt assembly and a lead screw and nut assembly, or any other transmission component capable of driving the cleaning component 140 to move up and down relative to the machine body 100 when the third driving component 181 is running.

[0092] It should be noted that, based on the second drive assembly 150 being provided on the second swing arm 122, in one embodiment, a lifting assembly 180 may also be integrated on the second swing arm 122, meaning that both the lifting assembly 180 and the second drive assembly 150 are arranged on the second swing arm 122. In another embodiment, only the second drive assembly 150 is provided on the second swing arm 122, while the lifting assembly 180 is arranged in a location outside the second swing arm 122, such as inside the body 100 or other structural parts.

[0093] In this embodiment, by placing the third driving member 181 between the mounting portion 1201 and the free end 1223, the overall center of gravity of the lifting assembly 180 is closer to the free end 1223. This arrangement increases the lever arm length of the center of gravity of the lifting assembly 180 relative to the connecting end 1222 (i.e., the pivot point), thereby enhancing the counterweight effect. Specifically, the third driving member 181 uses its own weight to generate a downward torque on the second swing arm 122 with the connecting end 1222 as the pivot point. This downward torque can be converted into additional ground pressure acting on the cleaning component 140, thereby improving the stability of the cleaning pressure of the cleaning component 140 on the ground during the cleaning process and improving the uniformity and reliability of the cleaning effect.

[0094] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A cleaning device, characterized in that, include: Organism; The swing arm assembly includes a first swing arm and a second swing arm. One end of the first swing arm is rotatably connected to the machine body, and the other end is rotatably connected to the second swing arm. The second swing arm is provided with a mounting part. The cleaning component is installed on the mounting part and can move relative to the body between an inward position and an outward position under the drive of the swing arm assembly; A first drive assembly is installed on the machine body and is used to drive the first swing arm to rotate relative to the machine body; The second swing arm has a connecting end and a free end at its two ends in the extending direction. The connecting end is rotatably connected to the first swing arm. The mounting part is disposed between the free end and the connecting end. The second swing arm has a counterweight structure in the area between the free end and the mounting part.

2. The cleaning equipment according to claim 1, characterized in that, The cleaning device further includes a second drive assembly. The cleaning component is a disc-shaped cloth. The second drive assembly is mounted on the second swing arm and is used to drive the cleaning component to rotate. Along the extension direction of the second swing arm, the center of gravity of the second drive assembly is located between the mounting part and the free end. The second drive assembly forms at least a portion of the counterweight structure.

3. The cleaning equipment according to claim 2, characterized in that, The second drive assembly includes a second drive member and a second transmission assembly. The cleaning member is connected to the second transmission assembly, and the second drive member drives the cleaning member to rotate through the second transmission assembly. Along the extension direction of the second swing arm, the second drive member is disposed between the mounting portion and the free end.

4. The cleaning equipment according to claim 1, characterized in that, The second swing arm includes a mounting cavity, and the counterweight structure is disposed within the mounting cavity.

5. The cleaning equipment according to claim 4, characterized in that, Along the extension direction of the second swing arm, the cross-sectional area of ​​the second swing arm near the free end is larger than the cross-sectional area near the connecting end.

6. The cleaning equipment according to claim 5, characterized in that, Along the extension direction of the second swing arm, from the connecting end to the mounting part, the cross-sectional area of ​​the second swing arm gradually increases.

7. The cleaning equipment according to claim 1, characterized in that, The body includes a first receiving cavity. When the cleaning component is in the retracted position, both the first swing arm and the second swing arm are housed within the first receiving cavity. When the cleaning component is in the outward swing position, at least a portion of the first swing arm and the second swing arm extend out of the first receiving cavity.

8. The cleaning equipment according to claim 7, characterized in that, The first receiving cavity has a lateral opening that allows the second swing arm to enter and exit the first receiving cavity, and in the retracted position, the free end of the second swing arm fills the side of the lateral opening facing the first receiving cavity.

9. The cleaning equipment according to claim 1, characterized in that, The cleaning equipment further includes a lifting assembly, which is mounted on the second swing arm. The cleaning component is vertically and vertically connected to the second swing arm via the lifting assembly. Along the extension direction of the second swing arm, the center of gravity of the lifting assembly is located between the mounting portion and the free end, and the lifting assembly forms at least a portion of the counterweight structure.

10. The cleaning apparatus of claim 9, wherein, The lifting assembly includes a third driving component and a third transmission component. The cleaning component is connected to the third transmission component, and the third driving component drives the cleaning component to lift and lower through the third transmission component. Along the extension direction of the second swing arm, the third driving component is disposed between the mounting portion and the free end.

Images