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 cleaning component is a mop assembly, installed on the second swing arm, and can move relative to the body between an inward retracted position and an outward swing position under the drive of the swing arm assembly; in the outward swing position, the minimum distance from the edge of the cleaning component to the edge of the body is greater than or equal to zero; the first drive assembly includes a first drive member, a worm gear, and a worm, the first drive member is installed on the body and drives the worm gear to rotate, the worm gear drives the worm gear to rotate, and the worm gear drives the first swing arm to rotate relative to the body. This utility model can improve the technical problem that the cleaning component is prone to displacement or shifting in the inward retracted and outward swing positions, causing the cleaning component to deviate from the preset working position.

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 advancements in living standards and technology, cleaning equipment such as robotic vacuum cleaners, floor scrubbers, and combined vacuum and mop machines are widely used in home environments. To expand cleaning coverage, these cleaning devices typically feature an outward-swinging arm assembly, on which cleaning components (such as side brushes and mops) are mounted. Driven by a drive unit, the cleaning components can move between an inward-sleeping position retracted beneath the main body and an outward-swinging position extending beyond the body's contours.

[0003] However, existing swing arm drive systems struggle to ensure the stability of the cleaning component in both the retracted and outward swing positions. Especially when the cleaning component (such as a wet mop) encounters resistance from the ground or wall, the swing arm assembly is prone to displacement or shifting relative to the machine body. This causes the cleaning component to deviate from its preset working position, thus affecting the reliable coverage and stability of the cleaning effect in both the retracted and outward swing positions. Summary of the Invention

[0004] This utility model provides a cleaning device to improve the technical problem that the cleaning component is prone to displacement or movement in the inward and outward positions, causing the cleaning component to deviate from the preset working position.

[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 cleaning component is a mop assembly, installed on the second swing arm, and can move relative to the body between an inward position and an outward swing position under the drive of the swing arm assembly; in the outward swing position, the minimum distance from the edge of the cleaning component to the edge of the body is greater than or equal to zero; the first drive assembly includes a first drive member, a worm gear, and a worm, the first drive member is installed on the body and drives the worm gear to rotate, the worm gear drives the worm gear to rotate, and the worm gear drives the first swing arm to rotate relative to the body.

[0006] The beneficial effects of this design are as follows: By using a first drive assembly consisting of a first drive member, a worm gear, and a worm wheel to drive the swing arm assembly, the reverse self-locking characteristic of the worm gear transmission is utilized to enhance the stability of the swing arm assembly in both the retracted and outward swing positions. This reduces the possibility of unexpected reverse rotation or lateral movement of the swing arm assembly due to cleaning resistance or other external forces. This allows the cleaning component to maintain its preset working posture more stably in both the retracted and outward swing positions, which helps to improve the problem of cleaning range fluctuations caused by swing arm assembly displacement, and enhances the reliability of edge cleaning coverage and the stability of the cleaning effect.

[0007] Specifically, since the minimum distance from the edge of the cleaning component to the edge of the machine body is greater than or equal to zero when in the outward swing position, this design requires the swing arm assembly to have a large extension arm length to accommodate the large outward swing distance of the cleaning component. A longer arm length structure is more prone to operational vibration or center of gravity shift in the outward swing position, leading to displacement or lateral movement of the swing arm assembly. Simultaneously, in the retracted position, the larger volume of the retracted swing arm assembly also makes it prone to displacement or lateral movement due to operational vibration during the movement of the cleaning equipment. These factors can all lead to changes in the posture of the cleaning component in the working position, thus making it more likely to experience reduced accuracy of the cleaning range and stability of the cleaning effect. Therefore, in this embodiment, the use of a worm gear transmission structure is particularly necessary to meet the specific structural requirement of a large outward swing range for the cleaning component. This structure, by utilizing the reverse self-locking characteristic of the worm gear, can effectively suppress unexpected displacements caused by vibration or center of gravity shift due to the large arm length, thereby enabling the swing arm assembly to maintain a stable positioning state in both the retracted and outward swing positions. This helps ensure that the cleaning components maintain the preset cleaning posture during operation, improving the consistency of the cleaning range and the stability of the cleaning effect.

[0008] In one embodiment of the present invention, the first drive assembly further includes a gear assembly, the power input end of which is connected to a worm gear, and the power output end of which is connected to the first swing arm; the rotation of the worm gear drives the gear assembly to run, thereby driving the first swing arm to rotate relative to the machine body.

[0009] The beneficial effects of this design are as follows: By introducing a gear assembly into the worm gear drive, the rigidity and positioning accuracy of the first drive assembly are further enhanced. Gear drives, characterized by tight meshing and accurate transmission ratios, effectively reduce backlash and return errors in the transmission chain, thereby improving the position control accuracy of the first swing arm during rotation. When the swing arm assembly moves to the retracted or outward swing position, this transmission system can better resist external interference caused by cleaning resistance or equipment vibration, significantly reducing the risk of unexpected movement or displacement of the swing arm. Furthermore, the gear assembly allows for more flexible layout of the first drive assembly, enabling optimization of the transmission path according to structural space requirements while maintaining the reverse self-locking function provided by the worm gear mechanism. This transmission scheme can achieve precise positioning of the swing arm assembly while further enhancing its stability in the retracted or outward swing positions, ensuring the stability of the cleaning component in its preset working posture, thereby further improving the consistency of the cleaning range and the reliability of the cleaning effect.

[0010] In one embodiment of the present invention, the cleaning device further includes a pressing component disposed on the body and / or the first swing arm, so as to apply a force toward the surface to be cleaned to the cleaning component at least when it is extended to the outward swing position.

[0011] The beneficial effects of this design are as follows: By incorporating a pressure-down component on the body and / or the first swing arm, when the cleaning component moves to the outward swing position, this component actively applies a force towards the surface to be cleaned. This design effectively enhances the swing arm assembly's ability to resist lateral resistance, such as the working resistance of the cleaning component, in the outward swing position by increasing the downward pressure between the cleaning component and the cleaning surface. It also reduces displacement or swaying of the swing arm assembly caused by force imbalance, thereby improving its stability in the outward swing position and ensuring a stable cleaning coverage area. Simultaneously, the applied downward pressure compensates for the ground pressure loss caused by the increased extension distance of the swing arm assembly, ensuring that the cleaning component maintains the preset cleaning pressure in the outward swing position for a stable and reliable cleaning effect.

[0012] In one embodiment of the present invention, the pressing component includes a lifting surface and a supporting part that cooperate with each other. The first swing arm is disposed on the side of the machine body facing the surface to be cleaned. Along the height direction of the machine body, one of the lifting surface and the supporting part is disposed on the side of the machine body facing the first swing arm, and the other is disposed on the side of the first swing arm facing the machine body. During the process of the cleaning component moving to the outward swing position, the supporting part moves along the lifting surface to apply a force to the first swing arm toward the surface to be cleaned.

[0013] The beneficial effects of this design are as follows: By incorporating a pressing assembly consisting of a lifting surface and a supporting part between the body and the first swing arm, the frictional resistance between the first swing arm and the body is effectively increased during the outward swing of the cleaning component, through the movement of the supporting part along the lifting surface. This design increases the driving torque required for the first swing arm to move in the opposite direction relative to the body, thereby enhancing the structural stability of the first swing arm in its outward swing state and suppressing unintended displacement caused by external forces. Simultaneously, this structure can convert the rotation of the swing arm assembly into a continuously increasing downward force, which strengthens with the extension distance, effectively compensating for the ground pressure loss caused by the extended outward swing distance of the cleaning component. Furthermore, this pressing assembly does not require an additional independent drive mechanism, resulting in a compact structure and small footprint, which is conducive to achieving a slimmer overall design for the body, ensuring functionality while optimizing the product's structure.

[0014] In one embodiment of the present invention, one of the body and the first swing arm is provided with a boss, the lifting surface is located on the top of the boss, and the supporting part is provided on the other of the body and the first swing arm corresponding to the boss.

[0015] The advantages of this design are as follows: In this embodiment, by placing the boss and the supporting portion on different parts of the body and the swing arm assembly, the flexibility of the structural layout between the lifting surface and the supporting portion can be improved. This design not only facilitates a compact arrangement of the overall pressing assembly but also enables a stable and reliable sliding fit between the lifting surface and the supporting portion, thereby ensuring smooth movement and precise positioning of the swing arm assembly during outward swing. Furthermore, by setting the boss and placing the lifting surface on top of it, the machining and forming process of the lifting surface is simplified.

[0016] In one embodiment of the present invention, the lifting surface is disposed on the side of the machine body facing the first swing arm. The lifting surface includes an inclined section, which gradually tilts towards the side closer to the surface to be cleaned along the rotation direction of the cleaning component as it moves from the inward position to the outward swing position.

[0017] The beneficial effects of this design are as follows: By incorporating the inclined section, when the swing arm assembly rotates the cleaning component from the retracted position to the outward swing position, the supporting portion on the first swing arm slides along the inclined section on the body. Since the inclined section is designed to gradually tilt towards the surface to be cleaned along the direction of rotation of the cleaning component from the retracted position to the outward swing position, the supporting portion is continuously guided downwards during the sliding process. On one hand, the interaction between the supporting portion and the inclined section gradually increases the frictional resistance between the first swing arm and the body, ensuring not only the stability of the swing arm assembly during the outward swing but also generating significant frictional resistance upon reaching the outward swing position. This effectively suppresses unintended displacement of the swing arm assembly in the outward swing working state, thereby improving its position-holding capability. On the other hand, the downward movement of the supporting portion forces the swing arm assembly to produce a downward deflection motion, applying a force towards the surface to be cleaned to the cleaning component mounted on the second swing arm, increasing the ground pressure of the cleaning component in the outward swing position, thereby further improving the cleaning effect.

[0018] In one embodiment of the present invention, the lifting surface further includes a planar segment, which is connected to one end of the inclined segment near the surface to be cleaned; when the cleaning component is in the outward swing position, the supporting part abuts against the planar segment.

[0019] The beneficial effects of this design are as follows: By incorporating a flat segment connecting the lifting surface to the inclined section, a stable and reliable support plane is provided for the supporting part when the cleaning component is in the outward swing position. Compared to the positioning of the supporting part on the inclined section, the structure of this flat segment effectively prevents accidental movement of the supporting part on the lifting surface due to vibration of the cleaning equipment or external collisions. This ensures the positional stability between the swing arm assembly and the machine body, thereby improving the stability of the cleaning coverage area of ​​the cleaning component in the outward swing position and ensuring the cleaning effect.

[0020] In one embodiment of the present invention, the body further includes a first receiving cavity, in which the swing arm assembly is housed in the first receiving cavity in the retracted position; and in the outward swing position, the swing arm assembly extends at least partially out of the first receiving cavity.

[0021] The beneficial effects of this design are as follows: By incorporating a first receiving cavity within the machine body, the swing arm assembly can be completely housed within this cavity when in the retracted position. This structural design ensures that, in the retracted position, the swing arm assembly remains flush with or embedded within the outer contour of the machine body, effectively avoiding the risk of accidental collisions with other objects caused by the swing arm assembly protruding from the machine body's contour. When the cleaning equipment moves in confined spaces or traverses obstacles, the swing arm assembly housed within the first receiving cavity is effectively protected by the machine body, preventing structural damage or positional displacement due to external collisions. This ensures that the swing arm assembly maintains a stable position in the retracted state, guaranteeing consistent cleaning coverage and stable cleaning results.

[0022] In one embodiment of the present invention, the body is provided with a guide member, and the second swing arm is provided with a guide surface; during the process of the second swing arm entering and exiting the first receiving cavity, the guide member and the guide surface slide together to limit the movement trajectory of the second swing arm.

[0023] The beneficial effects of this design are as follows: In this embodiment, by setting a guide member on the body and a corresponding guide surface on the second swing arm, the two form a sliding fit during the movement of the swing arm assembly into and out of the first receiving cavity. This guide structure can effectively limit the lateral offset and angular swing of the second swing arm during its telescopic movement, ensuring that it always runs smoothly along a preset trajectory. This design can improve the stability of the swing arm assembly's movement between the retracted and outward swing positions, avoiding problems such as jamming, collision, or abnormal wear caused by trajectory deviation. By precisely guiding the movement path of the second swing arm, it can be ensured that the swing arm assembly can accurately reach the retracted and outward swing positions, thereby providing a guarantee for the cleaning component to always maintain a stable working posture.

[0024] In one embodiment of the present invention, a stop portion is provided on the inner wall of the first receiving cavity. In the retracted position, the stop portion and the guide member are respectively provided on both sides of the rotation direction of the first swing arm. The stop portion abuts against the first swing arm and forms a rotation stop on the first swing arm along the rotation direction of the cleaning member from the outward swing position to the retracted position. The guide member abuts against the guide surface and can apply a force toward the stop portion to the first swing arm.

[0025] The beneficial effects of this design are as follows: With the above structure, when the swing arm assembly is in the retracted position, one side of the first swing arm directly abuts against the stop, forming a limit in the first rotation direction; simultaneously, the second swing arm, through a guide surface and a guide member, tightly engages with the guide member, generating a preload force on the first swing arm toward the stop, forming a constraint in the second rotation direction opposite to the first rotation direction. This bidirectional limiting structure allows the first swing arm to be effectively constrained on both sides of the rotation direction, thereby facilitating the stable fixing of the swing arm assembly within the first receiving cavity and reducing the swaying and shifting of the swing arm assembly caused by the movement or vibration of the cleaning equipment. Attached Figure Description

[0026] 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.

[0027] In the attached diagram:

[0028] Figure 1 A schematic diagram showing the state of the cleaning component in the retracted position in a cleaning device provided according to an embodiment of the present invention;

[0029] Figure 2 A schematic diagram showing the state of the cleaning component in the outward-swinging position in a cleaning device provided according to an embodiment of the present invention;

[0030] Figure 3 A partial structural diagram of the cleaning component in the cleaning device provided in an embodiment of the present utility model when it is in the outward swing position;

[0031] Figure 4 This is a partial structural diagram of the cleaning component in the cleaning device provided in an embodiment of the present invention, taken from another angle when the cleaning component is in the outward swing position.

[0032] Figure 5 for Figure 4 A magnified view of a portion of region A in the middle;

[0033] Figure 6 for Figure 3 An exploded view of the parts between the swing arm assembly and the machine body in the embodiment shown;

[0034] Figure 7 This is a schematic diagram showing the position between the swing arm assembly and the machine body when the cleaning component is in the outward swing position in one embodiment of the present invention;

[0035] Figure 8 for Figure 7 A partial structural diagram of the machine body after removing the swing arm assembly in the embodiment shown;

[0036] Figure 9 for Figure 8 A magnified view of a portion of region B in the middle;

[0037] Figure 10 This is a schematic diagram of a structure in one embodiment of the present invention, showing that a lifting surface is provided on the wall of the first receiving cavity of the machine body;

[0038] Figure 11 for Figure 10 A magnified view of a portion of region C in the middle;

[0039] Figure 12 This is a partial structural diagram of the swing arm assembly housed in the first receiving cavity in a cleaning device provided in one embodiment of the present utility model.

[0040] Figure 13 This is a schematic diagram of a structure in one embodiment of the present invention, showing that the wall of the first receiving cavity is provided with a stop portion;

[0041] Figure 14 This is a schematic diagram showing the state of the swing arm assembly and the body at another angle when the swing arm assembly is in the outward swing position according to one embodiment of the present invention;

[0042] Figure 15 This is a schematic diagram of the structure of the first receiving cavity without the swing arm assembly in one embodiment of the present invention;

[0043] Figure 16 for Figure 15 The illustrated embodiment shows a schematic diagram of a structure with a swing arm assembly installed.

[0044] The attached figures are labeled as follows:

[0045] 100. Body; 101. First receiving cavity; 1011. Stop; 10121. Stepped surface; 1013. Lateral opening; 1014. Bottom opening; 1015. First cavity; 1016. Second cavity; 1017. First wall; 102. Guide component; 120. Swing arm assembly; 121. First swing arm; 1211. Second wall; 122. Second swing arm; 1221. Guide surface; 130. First drive assembly; 131. First drive component; 1321. Worm gear; 1322. Worm wheel; 1323. Gear assembly; 140. Cleaning component; 170. Pressing assembly; 171. Lifting surface; 1711. Inclined section; 1712. Flat section; 172. Supporting part; 173. Boss. Detailed Implementation

[0046] 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.

[0047] 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.

[0048] 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.

[0049] Please see Figures 1 to 16 This invention provides a cleaning device. The cleaning device uses a first drive assembly 130, consisting of a first drive member 131, a worm gear 1321, and a worm wheel 1322, to drive the movement of the swing arm assembly 120. By utilizing the reverse self-locking characteristic of the worm gear 1322-worm wheel transmission, this structure helps enhance the stability of the swing arm assembly 120 in both the retracted and outward swing positions, thereby reducing the possibility of unexpected reversal or lateral movement of the swing arm assembly 120 due to cleaning resistance or other external forces. This allows the cleaning member 140 to maintain its preset working posture more stably in both the retracted and outward swing positions, which helps to improve the problem of cleaning range fluctuations caused by the displacement of the swing arm assembly 120, and enhances the reliability of edge cleaning coverage and the stability of the cleaning effect.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] Please see Figure 3 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 body 100, and the other end of the first swing arm 121 is rotatably connected to the second swing arm 122. The rotatable 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 by various structural methods, including but not limited to shaft connection or slewing bearing connection.

[0054] The cleaning component 140 is mounted on the second swing arm 122 and can be in a retracted position relative to the body 100 under the drive of the swing arm assembly 120 (e.g., ...). Figure 1 (as shown) and the outer swing position (as shown) Figure 2 The cleaning component 140 moves between the two sides (as shown). The cleaning component 140 is a mop assembly. The mop assembly can be a disc mop, a tracked mop, a roller mop, etc. Exemplarily, in this embodiment, the cleaning component 140 is a disc mop. The disc mop is rotatably mounted on the second swing arm 122. The cleaning component 140 can be configured for wet cleaning or dry cleaning, and this embodiment does not limit this.

[0055] When the cleaning unit 140 is in a regular cleaning or standby state, it is in a retracted position to reduce space occupation and avoid external interference. However, when the cleaning unit 140 needs to reach into the low spaces under furniture such as sofas and cabinets to perform cleaning operations, the cleaning unit 140 can be placed in an outward position.

[0056] Furthermore, by controlling the rotation angle of the swing arm assembly 120, the cleaning component 140 can also remain at any position between the retracted position and the outward swing position. For example, the cleaning component 140 can also have an edge-mounted position. In the edge-mounted position, the cleaning component 140 extends at least partially beyond the outline of the body 100 to mop along the edges of corners, etc.

[0057] 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.

[0058] Please see Figure 2 When the cleaning component 140 is in the outward-swinging 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-swinging position, the cleaning component 140 can extend completely outside the outline of the body 100. It should be noted that in this embodiment, the direction in which the cleaning component 140 extends relative to the body 100 in the outward-swinging position is not limited. Specifically, the cleaning component 140 can extend outside the body 100 along the width direction of the body 100, meaning the minimum distance between the edge of the cleaning component 140 and the corresponding edge at the maximum width position of the body 100 is greater than or equal to zero. The cleaning component 140 can also extend along a direction that forms a certain angle with respect to the width direction of the body 100.

[0059] Please see Figure 4 and Figure 5 The first drive assembly 130 includes a first drive element 131, a worm gear 1322, and a worm 1321. The first drive element 131 is mounted on the machine body 100 and drives the worm 1321 to rotate. The first drive element 131 can be a motor, a combination of a motor and a reducer, or any drive source capable of driving the worm 1321 to rotate, such as a hydraulic motor. The worm 1321 drives the worm gear 1322 to rotate, and the worm gear 1322 drives the first swing arm 121 to rotate relative to the machine body 100. It should be noted that, in one embodiment, the worm gear 1322 can be directly fixedly connected to the first swing arm 121 so that it directly drives the first swing arm 121 to rotate when the worm gear 1322 rotates. In another embodiment, the worm gear 1322 can also indirectly drive the first swing arm 121 to rotate through other transmission components (such as gear assemblies, pulley assemblies, etc.).

[0060] In this embodiment, the swing arm assembly 120 is driven by a first drive assembly 130 consisting of a first drive member 131, a worm gear 1321, and a worm wheel 1322. This utilizes the reverse self-locking characteristic of the worm gear transmission to enhance the stability of the swing arm assembly 120 in both the retracted and outward swing positions, thereby reducing the possibility of unexpected reversal or lateral movement of the swing arm assembly 120 due to cleaning resistance or other external forces. This allows the cleaning member 140 to maintain its preset working posture more stably in both the retracted and outward swing positions, which helps to improve the problem of cleaning range fluctuations caused by the displacement of the swing arm assembly 120, and enhances the reliability of edge cleaning coverage and the stability of the cleaning effect.

[0061] Specifically, since the minimum distance from the edge of the cleaning component 140 to the edge of the machine body 100 is greater than or equal to zero when in the outward swing position, this design requires the swing arm assembly 120 to have a large extension arm length to accommodate the large outward swing distance of the cleaning component 140. A longer arm length structure is more prone to operational vibration or center of gravity shift in the outward swing position, causing the swing arm assembly 120 to shift or move around in this position. Simultaneously, in the retracted position, the retracted swing arm assembly 120 has a larger volume and is also prone to shift or move around due to operational vibration during the movement of the cleaning equipment. These factors can all lead to changes in the posture of the cleaning component 140 in the working position, thus making it more likely to experience reduced accuracy of the cleaning range and stability of the cleaning effect. Therefore, in this embodiment, the use of a worm gear transmission structure is particularly necessary to meet the specific structural requirement of the cleaning component 140 to achieve a large outward swing range. This structure utilizes the reverse self-locking characteristic of a worm gear to effectively suppress unexpected displacements caused by vibrations or center of gravity shifts due to the large arm length, thus ensuring that the swing arm assembly 120 maintains a stable positioning in both the inward and outward swing positions. This helps ensure that the cleaning component 140 maintains the preset cleaning posture during operation, improving the consistency of the cleaning range and the stability of the cleaning effect.

[0062] Please see Figures 3 to 5 In one embodiment of this utility model, the first drive assembly 130 further includes a gear assembly 1323. The power input end of the gear assembly 1323 is connected to a worm gear 1322, and the power output end of the gear assembly 1323 is connected to the first swing arm 121. The rotation of the worm gear 1322 drives the gear assembly 1323 to run, thereby driving the first swing arm 121 to rotate relative to the machine body 100. The gear assembly 1323 can be a single-stage gear transmission assembly or a two-stage gear transmission assembly, etc., which needs to be determined according to the transmission ratio between the rotational speed of the first swing arm 121 and the first drive member 131.

[0063] By introducing a gear assembly 1323 into the worm gear drive, the rigidity and positioning accuracy of the first drive assembly 130 are further enhanced. Gear drives feature tight meshing and accurate transmission ratios, effectively reducing backlash and return errors in the transmission chain, thereby improving the position control accuracy of the first swing arm 121 during rotation. When the swing arm assembly 120 moves to the retracted or outward swing position, this transmission system can better resist external interference caused by cleaning resistance or equipment vibration, significantly reducing the risk of unexpected movement or displacement of the swing arm. Furthermore, the gear assembly 1323 allows for more flexible layout of the first drive assembly 130, enabling optimization of the transmission path according to structural space requirements while maintaining the reverse self-locking function provided by the worm gear mechanism. This transmission scheme can achieve precise positioning of the swing arm assembly 120 while further enhancing its stability in the retracted or outward swing positions, ensuring the stability of the cleaning component 140 in its preset working posture, thereby further improving the consistency of the cleaning range and the reliability of the cleaning effect.

[0064] Please see Figure 3 and Figure 6 In one embodiment of the present invention, the cleaning device further includes a pressing component 170, which is disposed on the body 100 and the first swing arm 121 to apply a force toward the surface to be cleaned to the cleaning component 140 at least when it is extended to the outward swing position.

[0065] In this embodiment, the specific structure and location of the pressing component 170 can be implemented in various ways.

[0066] In one embodiment, a pressing assembly 170 is disposed on the body 100 and includes a pressing head and a cylinder for driving its movement. The pressing head is connected to the piston end of the cylinder, and the cylinder seat is mounted on the body 100. The extension movement of the cylinder piston end drives the pressing head to act on the first swing arm 121, thereby applying a force toward the surface to be cleaned to the cleaning component 140 when the cleaning component 140 moves to the outward swing position.

[0067] In another embodiment, the pressing component 170 is disposed on the body 100 and includes a cam and a motor that drives its movement. The motor is disposed on the body 100, and the cam is connected to the output shaft of the motor. During the rotation of the motor, the cam contacts and engages with the first swing arm 121, and the rotation of the cam pushes the first swing arm 121 downward, thereby giving the cleaning component 140 downward pressure toward the surface to be cleaned.

[0068] In another embodiment, the pressing component 170 is partially disposed on the body 100 and partially disposed on the first swing arm 121. Specifically, the pressing component 170 includes a cooperating lifting surface 171 and a supporting portion 172. The lifting surface 171 and the supporting portion 172 are respectively disposed on the body 100 and the first swing arm 121. During the movement of the cleaning component 140 to the outward swing position, the supporting portion 172 slides along the lifting surface 171, thereby applying a force to the cleaning component 140 toward the surface to be cleaned.

[0069] It should be noted that the pressing component 170 can apply a force toward the surface to be cleaned when the cleaning component 140 is in the outward swing position, or it can continuously apply this force throughout the entire outward swing process of the cleaning component 140, or it can apply this force only for a portion of the outward swing process of the cleaning component 140. The key is to ensure that the pressing component 170 can apply a force toward the surface to be cleaned when the cleaning component 140 moves to the outward swing position.

[0070] In this embodiment, by providing a pressing component 170 on the body 100 and / or the first swing arm 121, when the cleaning component 140 moves to the outward swing position, the pressing component 170 can actively apply a force towards the surface to be cleaned to the cleaning component 140. This design effectively enhances the ability of the swing arm assembly 120 to resist lateral resistance, such as the working resistance of the cleaning component 140, in the outward swing position by increasing the downward pressure between the cleaning component 140 and the cleaning surface. This also reduces the displacement or movement of the swing arm assembly 120 caused by force imbalance, thereby improving the stability of the swing arm assembly 120 in the outward swing position and ensuring that the cleaning component 140 has a stable cleaning coverage area. At the same time, the applied downward pressure can also compensate for the pressure loss to the ground caused by the increased extension distance of the swing arm assembly 120, ensuring that the cleaning component 140 can maintain a preset cleaning pressure in the outward swing position to achieve a stable and reliable cleaning effect.

[0071] Please see Figures 7 to 10 In one embodiment of this utility model, the pressing component 170 includes a lifting surface 171 and a supporting portion 172 that cooperate with each other, and a first swing arm 121 is disposed on the side of the machine body 100 facing the surface to be cleaned. Along the height direction of the machine body 100, one of the lifting surface 171 and the supporting portion 172 is disposed on the side of the machine body 100 facing the first swing arm 121, and the other is disposed on the side of the first swing arm 121 facing the machine body 100. During the process of the cleaning component 140 moving to the outward swing position, the supporting portion 172 moves along the lifting surface 171 to apply a force to the first swing arm 121 toward the surface to be cleaned.

[0072] It should be noted that the lifting surface 171 can adopt a spiral surface, inclined surface, or arc-shaped guide surface, etc., and the supporting part 172 can take the form of a protrusion, roller, bearing, or slider. As long as the supporting part 172 can slide or roll along the lifting surface 171 during the movement of the cleaning part 140, and the rotation of the second swing arm 122 relative to the first swing arm 121 is converted into downward pressure on the cleaning part 140 through the contour change of the lifting surface 171, it falls within the protection scope of this embodiment. Optionally, for ease of manufacturing, the lifting surface 171 in this embodiment preferably adopts an inclined surface structure.

[0073] Please see Figure 6 and Figure 10 Specifically, along the height direction of the body 100, the side of the body 100 facing the first swing arm 121 includes a first wall 1017, and a second wall 1211 is correspondingly provided on the side of the first swing arm 121 facing the first wall 1017. The second wall 1211 is located below the first wall 1017, that is, on the side of the first wall 1017 facing the surface to be cleaned. When the cleaning component 140 operates between the retracted position and the outward swing position, the second wall 1211 rotates relative to the first wall 1017. One of the lifting surface 171 and the supporting part 172 is provided on the first wall 1017, and the other is provided on the second wall 1211. During the rotation of the swing arm assembly 120 relative to the body 100, the supporting part 172 moves along the lifting surface 171 to apply a force to the cleaning component 140 toward the surface to be cleaned.

[0074] Please see Figures 9 to 11 In one embodiment, a lifting surface 171 is disposed on the first wall 1017 of the body 100, and a supporting portion 172 is disposed on the second wall 1211 of the first swing arm 121. The lifting surface 171 gradually tilts towards the side closer to the surface to be cleaned along the rotation direction of the cleaning member 140 as it moves from the retracted position to the outward swing position. During the process of the cleaning member 140 moving from the retracted position to the outward swing position, the first swing arm 121 rotates relative to the body 100, causing the supporting portion 172 to slide along the lifting surface 171, thereby applying a force toward the surface to be cleaned to the cleaning member 140.

[0075] In another embodiment, a lifting surface 171 is disposed on the second wall 1211 of the first swing arm 121, and a supporting portion 172 is disposed on the first wall 1017 of the body 100. The lifting surface 171 gradually tilts away from the surface to be cleaned along the rotation direction of the cleaning component 140 as it moves from the inward position to the outward position. During the movement of the cleaning component 140, the supporting portion 172 slides along the lifting surface 171 to achieve a downward pressing effect on the cleaning component 140.

[0076] It is understood that in other alternative embodiments, the positions of the lifting surface 171 and the supporting portion 172 may differ from those in the above embodiments. Specifically, the lifting surface 171 may be located on the body 100, while the supporting portion 172 may be located on the second swing arm 122. The body 100 has a first wall 1017 on the side facing the swing arm assembly 120, and the second swing arm 122 has a corresponding second wall 1211 on the side facing the first wall 1017, with the second wall 1211 located below the first wall 1017 (i.e., closer to the surface to be cleaned). The body 100 has an outwardly extending portion, and the lifting surface 171 is formed on the lower surface of the extension. When the cleaning component 140 moves to the outward swing position, the extension is located above the second swing arm 122, allowing the lifting surface 171 formed thereon to effectively abut against the supporting portion 172 on the second swing arm 122, thereby achieving a downward pressure on the cleaning component 140.

[0077] In this embodiment, a pressing assembly 170, consisting of a lifting surface 171 and a supporting part 172, is provided between the body 100 and the first swing arm 121. During the outward swing of the cleaning component 140, the movement of the supporting part 172 along the lifting surface 171 effectively increases the frictional resistance between the first swing arm 121 and the body 100. This design increases the driving torque required for the first swing arm 121 to move in the opposite direction relative to the body 100, thereby enhancing the structural stability of the first swing arm 121 in the outward swing state and suppressing unintended displacement caused by external forces.

[0078] Simultaneously, this structure can convert the rotation of the swing arm assembly 120 into a continuously increasing downward pressure, which increases with the extension distance, effectively compensating for the ground pressure loss caused by the extended outward swing distance of the cleaning component 140. Furthermore, the downward pressure assembly 170 does not require an additional independent drive mechanism, resulting in a compact structure and small footprint, which facilitates a slimmer overall design for the body 100, ensuring functionality while optimizing the product's structure.

[0079] In one embodiment of the present invention, one of the body 100 and the first swing arm 121 is provided with a boss 173, the lifting surface 171 is located on the top of the boss 173, and the supporting part 172 is provided on the other of the body 100 and the first swing arm 121 corresponding to the boss 173.

[0080] Specifically, please refer to Figures 8 to 10In one embodiment, a boss 173 is provided on the body 100, and a lifting surface 171 is located on top of the boss 173. Specifically, the boss 173 is provided on the first wall 1017 of the body 100. The boss 173 can be integrally formed with the first wall 1017, or it can be connected to the first wall 1017 by means of bolts or snap-fit. Optionally, in one embodiment, the boss 173 and the first wall 1017 are connected by integral forming. By providing a boss 173 and arranging the lifting surface 171 on top of it, the machining and forming process of the lifting surface 171 on the body 100 is simplified.

[0081] Correspondingly, the first swing arm 121 is provided with a supporting part 172 that cooperates with the boss 173. Specifically, the supporting part 172 is provided on the second wall 1211 of the first swing arm 121. The supporting part 172 can be a protrusion structure additionally provided on the second wall 1211, or it can be a planar structure formed on the surface of the second wall 1211 itself. As long as it can slide and abut against the lifting surface 171 and increase the downward pressure on the cleaning component 140 during sliding operation, it is acceptable.

[0082] Optionally, please refer to Figure 6 In this embodiment, the supporting part 172 is directly set as the surface plane of the second wall 1211 itself. This setting eliminates the need for additional protrusions on the first swing arm 121, which simplifies the manufacturing process of the first swing arm 121 and reduces the mating height between the supporting part 172 and the lifting surface 171, thus reducing the installation space occupied in the height direction of the machine body 100.

[0083] In other embodiments, the body 100 may be provided with a supporting portion 172, specifically, the supporting portion 172 is provided on the first wall 1017 of the body 100. A boss 173 is provided on the first swing arm 121, specifically, the boss 173 is provided on the second wall 1211 of the first swing arm 121. The specific structures of the supporting portion 172 and the boss 173 can be referred to the relevant description in the previous embodiment, and will not be repeated here.

[0084] In this embodiment, by distributing the boss 173 and the supporting portion 172 on different parts of the body 100 and the swing arm assembly 120, the flexibility of the structural layout between the lifting surface 171 and the supporting portion 172 can be improved. This design not only facilitates a compact overall arrangement of the pressing assembly 170, but also enables a stable and reliable sliding fit between the lifting surface 171 and the supporting portion 172, thereby ensuring smooth movement and accurate positioning of the swing arm assembly 120 during outward swing. Furthermore, by providing the boss 173 and placing the lifting surface 171 on top of it, the processing and forming process of the lifting surface 171 is simplified.

[0085] Please see Figures 8 to 10In one embodiment of the present invention, the lifting surface 171 is disposed on the side of the body 100 facing the first swing arm 121. The lifting surface 171 includes an inclined section 1711, which gradually tilts towards the side closer to the surface to be cleaned along the rotation direction of the cleaning component 140 when it moves from the inward position to the outward position.

[0086] Please see Figures 6 to 11 In one embodiment of this utility model, the lifting surface 171 is disposed on the side of the machine body 100 facing the first swing arm 121. Specifically, the lifting surface 171 is disposed on the first wall 1017 of the machine body 100. Correspondingly, the abutment portion 172 is disposed on the first swing arm 121, specifically, the abutment portion 172 is disposed on the second wall 1211 of the first swing arm 121. The lifting surface 171 includes an inclined section 1711, which gradually slopes towards the side closer to the surface to be cleaned along the rotation direction of the cleaning member 140 as it moves from the inward position to the outward swing position. The inclined section 1711 can be an inclined planar structure or an inclined curved surface structure. To facilitate the processing and forming of the inclined section 1711, optionally, in this embodiment, the inclined section 1711 is an inclined planar structure. During the process of the cleaning component 140 moving from the inward position to the outward position, the first swing arm 121 rotates relative to the body 100, causing the supporting part 172 to slide along the inclined section 1711, so that the supporting part 172 gradually moves closer to the side of the surface to be cleaned, thereby applying a force toward the surface to be cleaned to the cleaning component 140.

[0087] It is understood that, in this embodiment, the contact relationship between the abutting part 172 and the inclined section 1711 can be configured according to actual movement requirements. The abutting part 172 and the inclined section 1711 can maintain continuous contact throughout the entire process of the cleaning member 140 moving from the retracted position to the outward swing position, or they can maintain contact only in the latter half of the stroke. As long as it is ensured that when the cleaning member 140 reaches and is in the outward swing position, the abutting part 172 can maintain effective contact with the lifting surface 171, and that a force can be applied to the cleaning member 140 toward the surface to be cleaned.

[0088] In this embodiment, by providing the inclined section 1711, when the swing arm assembly 120 drives the cleaning component 140 to rotate from the retracted position to the outward swing position, the abutment portion 172 on the first swing arm 121 will slide along the inclined section 1711 on the body 100. Since the inclined section 1711 is set to gradually tilt towards the side closer to the surface to be cleaned along the rotation direction of the cleaning component 140 as it moves from the retracted position to the outward swing position, the abutment portion 172 is continuously guided downwards during the sliding process. On the one hand, the interaction between the abutment portion 172 and the inclined section 1711 gradually increases the frictional resistance between the first swing arm 121 and the body 100, ensuring not only the motion stability of the swing arm assembly 120 during the outward swing process but also generating greater frictional resistance when reaching the outward swing position. This effectively suppresses the unexpected displacement of the swing arm assembly 120 in the outward swing working state, thereby improving its position holding capability. On the other hand, the downward movement of the supporting part 172 forces the swing arm assembly 120 to produce a downward deflection movement, which applies a force toward the surface to be cleaned to the cleaning component 140 mounted on the second swing arm 122, increasing the ground pressure of the cleaning component 140 when it is in the outward swing position, thereby further improving the cleaning effect.

[0089] Please see Figure 10 and Figure 11 In one embodiment of this utility model, the lifting surface 171 further includes a planar segment 1712, which is connected to one end of the inclined segment 1711 near the surface to be cleaned. When the cleaning component 140 is in the outward swing position, the abutting portion 172 abuts against the planar segment 1712. Specifically, when the cleaning component 140 moves from the inward position to the outward swing position, the abutting portion 172 first slides along the inclined segment 1711 and contacts the planar segment 1712 after passing the inclined segment 1711; when the cleaning component 140 is stable in the outward swing position, the abutting portion 172 finally stops and abuts against the planar segment 1712.

[0090] The contact form between the supporting part 172 and the planar segment 1712 is not limited, and needs to be determined according to the structural shape of the supporting part 172 itself. For example, the supporting part 172 and the planar segment 1712 can form a planar contact, an arc-shaped contact, etc., as long as stable support can be achieved between the supporting part 172 and the planar segment 1712. Optionally, in one embodiment, the supporting part 172 is a planar structure disposed on the first swing arm 121. Accordingly, when the cleaning component 140 is in the outward swing position, the supporting part 172 of this planar structure forms a stable planar contact with the planar segment 1712 of the lifting surface 171. This design can increase the contact area between the supporting part 172 and the lifting surface 171, effectively improving the structural stability of the two in the contact state, thereby ensuring the ability of the cleaning component 140 to maintain its posture in the outward swing position.

[0091] In this embodiment, by providing a flat segment 1712 connected to the inclined segment 1711 on the lifting surface 171, a stable and reliable support plane can be provided for the supporting part 172 when the cleaning component 140 is in the outward swing position. Compared to the positioning of the supporting part 172 on the inclined segment 1711, the structure of the flat segment 1712 can effectively prevent the supporting part 172 from accidentally moving on the lifting surface 171 due to vibration of the cleaning equipment or external collision interference, thereby ensuring the positional stability between the swing arm assembly 120 and the body 100, and thus improving the stability of the cleaning coverage range of the cleaning component 140 in the outward swing position, thereby ensuring the cleaning effect.

[0092] Please see Figure 12 and Figure 13 In one embodiment of the present invention, the body 100 further includes a first receiving cavity 101, in which the swing arm assembly 120 is housed within the first receiving cavity 101 in the retracted position. In the outward swing position, the swing arm assembly 120 extends at least partially out of the first receiving cavity 101.

[0093] In this embodiment, by providing a first receiving cavity 101 within the body 100, the swing arm assembly 120 can be completely housed within the first receiving cavity 101 when in the retracted position. This structural design ensures that, in the retracted position, the swing arm assembly 120 remains flush with or embedded within the outer contour of the body 100, effectively avoiding the risk of accidental collisions with other objects caused by the swing arm assembly 120 protruding from the outer contour of the body 100. When the cleaning equipment moves in narrow spaces or traverses obstacles, the swing arm assembly 120 housed within the first receiving cavity 101 is effectively protected by the body 100, preventing structural damage or positional displacement due to external collisions. This ensures that the swing arm assembly 120 maintains a stable position in the retracted state, guaranteeing that the cleaning component 140 maintains consistent cleaning coverage and stable cleaning effect.

[0094] Specifically, please refer to Figure 14 In one embodiment, 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 side of the second swing arm 122 facing the surface to be cleaned is exposed through the bottom opening 1014 for connecting the cleaning component 140.

[0095] The specific structural shape of the first receiving cavity 101 is not limited, as long as it meets the storage requirements of the swing arm assembly 120. Optionally, please refer to Figure 15 and Figure 16In this embodiment, along the height direction of the body 100, the installation height of the second swing arm 122 is higher than the installation height of the first swing arm 121. The sidewall of the first receiving cavity 101 has a stepped surface 10121. The plane containing the stepped surface 10121 divides the first receiving cavity 101 into a first cavity 1015 and a second cavity 1016 along the height direction of the body 100. The installation height of the second cavity 1016 is higher than that of the first cavity 1015. The specific shape of the stepped surface 10121 can be designed according to structural requirements, such as a fan shape, a rectangle, or other geometric shapes. The first cavity 1015 is used to accommodate the first swing arm 121 and the portion of the second swing arm 122 that does not extend beyond the first swing arm 121 in the height direction. The second cavity 1016 is used to accommodate the portion of the second swing arm 122 that extends beyond the first swing arm 121 in the height direction. A lifting surface 171 is provided on the step surface 10121 near the side opening 1013. A supporting part 172 is provided on the side of the first swing arm 121 facing the step surface 10121. During the process of the swing arm assembly 120 entering and exiting the first receiving cavity 101, the supporting part 172 can slide along the lifting surface 171 to achieve the downward pressing effect on the first swing arm 121.

[0096] Please see Figure 12 and Figure 13 In one embodiment of this utility model, the body 100 is provided with a guide member 102, and the second swing arm 122 is correspondingly 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 slide together to limit the movement trajectory of the second swing arm 122.

[0097] Specifically, 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 member 102 is rotatably connected to the wall of the first receiving cavity 101 via a pivot. The guide surface 1221 can be an arc surface, an inclined surface, or a plane, etc.

[0098] 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.

[0099] Please see Figure 4 and 12 During the process of the second swing arm 122 entering the first receiving cavity 101, the guide member 102 rolls along the guide surface 1221. Through the contact and cooperation between the two, the guide member 102 guides the second swing arm 122 to rotate relative to the first swing arm 121, so that the bending angle between the second swing arm 122 and the first swing arm 121 gradually decreases from β to α, until the second swing arm 122 and the first swing arm 121 are completely received in the first receiving cavity 101, thereby 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 guide member 102 rolls in the opposite direction along the guide surface 1221. Through the contact and cooperation between the two, the guide member 102 guides the second swing arm 122 to rotate in the opposite direction relative to the first swing arm 121, so that the bending angle between the second swing arm 122 and the first swing arm 121 gradually increases from α to β, until the second swing arm 122 is completely swung out of the first receiving cavity 101, thereby completing the unfolding action between the first swing arm 121 and the second swing arm 122.

[0100] In this embodiment, a guide member 102 is provided on the body 100, and a guide surface 1221 is correspondingly provided on the second swing arm 122, so that the two form a sliding fit during the process of the swing arm assembly 120 entering and exiting the first receiving cavity 101. This guide structure can effectively limit the lateral displacement and angular swing of the second swing arm 122 during the telescopic movement, ensuring that it always runs smoothly along the preset trajectory. This design can improve the stability of the movement of the swing arm assembly 120 between the inward and outward positions, avoiding problems such as jamming, collision, or abnormal wear caused by trajectory deviation. By precisely guiding the movement path of the second swing arm 122, it can be ensured that the swing arm assembly 120 can accurately reach the inward and outward positions, thereby providing a guarantee for the cleaning component 140 to always maintain a stable working posture.

[0101] Please see Figure 12 and Figure 13 In one embodiment of this utility model, a stop portion 1011 is provided on the inner wall of the first receiving cavity 101. In the retracted position, the stop portion 1011 and the guide member 102 are respectively disposed on both sides of the rotation direction of the first swing arm 121. The stop portion 1011 abuts against the first swing arm 121 and forms a rotation stop on the first swing arm 121 along the rotation direction of the cleaning member 140 from the outward swing position to the retracted position. The guide member 102 abuts against the guide surface 1221 and can apply a force to the first swing arm 121 toward the stop portion 1011. The specific structure of the stop portion 1011 is not limited, and it can be a long strip structure, a structure with multiple protrusions, or other shapes.

[0102] Specifically, in the retracted position, the first swing arm 121 and the second swing arm 122 can mutually stop each other to form a fixed bending angle α. The stopping method can be that the second swing arm 122 is provided with a mounting groove, and the first swing arm 121 is rotatably mounted in the mounting groove. In the retracted position, the second swing arm 122 abuts against the groove wall on one side of the mounting groove to form a stopping relationship.

[0103] With the above structure, when the swing arm assembly 120 is in the retracted position, one side of the first swing arm 121 directly abuts against the stop portion 1011, forming a limit in the first rotation direction; simultaneously, the second swing arm 122, through the guide surface 1221, tightly engages with the guide member 102, generating a preload force on the first swing arm 121 toward the stop portion 1011, forming a constraint in the second rotation direction opposite to the first rotation direction. This bidirectional limiting structure allows the first swing arm 121 to be effectively constrained on both sides of the rotation direction, thereby facilitating the stable fixing of the swing arm assembly 120 within the first receiving cavity 101 and reducing the swaying and shifting of the swing arm assembly 120 caused by the movement or vibration of the cleaning equipment.

[0104] 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, wherein 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 cleaning component, which is a mop assembly, is mounted on the second swing arm and can move relative to the machine body between an inward position and an outward position under the drive of the swing arm assembly; in the outward position, the minimum distance from the edge of the cleaning component to the edge of the machine body is greater than or equal to zero. The first drive assembly includes a first drive element, a worm gear, and a worm. The first drive element is mounted on the machine body and drives the worm to rotate. The worm drives the worm gear to rotate, and the worm gear drives the first swing arm to rotate relative to the machine body.

2. The cleaning equipment according to claim 1, characterized in that, The first drive assembly further includes a gear assembly, the power input end of which is connected to the worm gear, and the power output end of which is connected to the first swing arm; the rotation of the worm gear drives the gear assembly to run, thereby causing the first swing arm to rotate relative to the machine body.

3. The cleaning equipment according to claim 1, characterized in that, The cleaning device further includes a pressing component disposed on the body and / or the first swing arm to apply a force toward the surface to be cleaned, at least when the cleaning component is extended to the outward swing position.

4. The cleaning equipment according to claim 3, characterized in that, The pressing assembly includes a lifting surface and a supporting part that cooperate with each other. The first swing arm is disposed on the side of the machine body facing the surface to be cleaned. Along the height direction of the machine body, one of the lifting surface and the supporting part is disposed on the side of the machine body facing the first swing arm, and the other is disposed on the side of the first swing arm facing the machine body. During the process of the cleaning component moving to the outward swing position, the supporting part moves along the lifting surface to apply a force to the first swing arm toward the surface to be cleaned.

5. The cleaning equipment according to claim 4, characterized in that, One of the body and the first swing arm is provided with a boss, the lifting surface is located on the top of the boss, and the supporting part is provided on the other of the body and the first swing arm corresponding to the boss.

6. The cleaning equipment according to claim 4, characterized in that, The lifting surface is located on the side of the machine body facing the first swing arm. The lifting surface includes an inclined section, which gradually tilts towards the side closer to the surface to be cleaned along the rotation direction of the cleaning component as it moves from the inward position to the outward position.

7. The cleaning equipment according to claim 6, characterized in that, The lifting surface also includes a flat segment, which is connected to one end of the inclined segment near the surface to be cleaned; when the cleaning component is in the outward swing position, the supporting part abuts against the flat segment.

8. The cleaning equipment according to claim 1, characterized in that, The body also includes a first receiving cavity, in which the swing arm assembly is housed in the first receiving cavity in the retracted position; and in the outward swing position, the swing arm assembly extends at least partially out of the first receiving cavity.

9. The cleaning equipment according to claim 8, characterized in that, The body is provided with a guide member, and the second swing arm is provided with a guide surface; during the process of the second swing arm entering and exiting the first receiving cavity, the guide member and the guide surface slide together to limit the movement trajectory of the second swing arm.

10. The cleaning equipment according to claim 9, characterized in that, A stop portion is provided on the inner wall of the first receiving cavity. In the retracted position, the stop portion and the guide member are respectively provided on both sides of the rotation direction of the first swing arm. The stop portion abuts against the first swing arm and forms a rotation stop on the first swing arm along the rotation direction of the cleaning member from the outward swing position to the retracted position. The guide member abuts against the guide surface and can apply a force toward the stop portion to the first swing arm.

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