A robotic vacuum cleaner

Abstract

The invention relates to the technical field of sweeping robots, and discloses a sweeping robot which comprises a robot body. The cleaning part is arranged at the bottom of the robot body; the scraping plate mechanism comprises a driving part connected with the robot body and a scraping plate part driven by the driving part; the driving part is configured to drive the scraper part to move between a storage position and an extension position; at the storage position, the scraping plate part is in contact with the cleaning piece; and at the extending position, the scraper part performs cleaning operation on the ground. According to the sweeping robot, the scraping plate mechanism is configured to be in contact with the cleaning piece of the body under the condition that the scraping plate mechanism is located at the storage position, so that mutual cleaning of the scraping plate mechanism and the cleaning piece is achieved. Compared with a floor sweeping robot in the prior art, the floor sweeping robot provided by the invention realizes a self-cleaning effect due to the contact between the scraper mechanism and the cleaning piece of the body, and has more durable durability and a more automatic working process.

Description

(19) State Intellectual Property Office (12) Invention Patent Application (10) Application Publication Number (43) Application Publication Date (21) Application Number 202610186780.6 (22) Application Date 2026.02.09 (71) Applicant: Chase Innovation Technology (Suzhou) Co., Ltd. Address: Units 1, 2, and 3, Building 8, No. 1688, Songwei Road, Guoxiang Street, Wuzhong Economic Development Zone, Suzhou City, Jiangsu Province, 215000 (72) Inventors: Jiang Zhiwei, Li Shengban, Yong Wei, Xiaoxiang (74) Patent Agency: Beijing Runping Intellectual Property Agency Co., Ltd. 11283 Patent Attorney: Yong Ding (51) Int.Cl. A47L 11 / 24 (2006.01) A47L 11 / 282 (2006.01) A47L 11 / 284 (2006.01) A47L 11 / 40 (2006.01) A46B 17 / 06 (2006.01) (54) Invention Title: A Sweeping Robot (57) Abstract: This invention relates to the field of sweeping robot technology and discloses a sweeping robot, comprising: a robot body; a cleaning component disposed at the bottom of the robot body; a scraper mechanism including a drive unit connected to the robot body and a scraper portion driven by the drive unit; the drive unit is configured to drive the scraper portion to move between a retracted position and an extended position; wherein, in the retracted position, the scraper portion contacts the cleaning component; in the extended position, the scraper portion performs cleaning operations on the floor. This sweeping robot configures the scraper mechanism to contact the cleaning component of the body when in the retracted position, thereby achieving mutual cleaning of both. Compared with existing sweeping robots, the sweeping robot provided by this invention achieves a self-cleaning effect by contacting the scraper mechanism and the cleaning component of the body, resulting in greater durability and a more automated working process. Claims (2 pages), Description (7 pages), Drawings (3 pages), CN 121694613 A, 2026.03.20, CN 1 21 69 46 13 A 1. A sweeping robot, characterized in that it comprises: a robot body; a cleaning component disposed at the bottom of the robot body; a scraper mechanism including a drive unit connected to the robot body and a scraper portion driven by the drive unit; the drive unit is configured to drive the scraper portion to move between a retracted position and an extended position; wherein, in the retracted position, the scraper portion contacts the cleaning component; in the extended position, the scraper portion performs a cleaning operation on the floor. 2. The sweeping robot according to claim 1, characterized in that the scraper portion is provided with a scraping component for performing the cleaning operation. 3. The sweeping robot according to claim 2, characterized in that, in the retracted position, the scraping component is equipped with...4. The sweeping robot according to claim 3, wherein the scraper portion includes a scraper support rod, and the scraper is hinged to the scraper support rod. 5. The sweeping robot according to claim 4, wherein the scraper includes a rigid section connected to the scraper support rod and a flexible section for contacting the ground. 6. The sweeping robot according to claim 4, wherein the scraper mechanism further includes a reset member, the reset member being configured to apply a force to the scraper to cause it to move towards the extended position to perform a floor cleaning operation. 7. The sweeping robot according to claim 6, wherein the reset member is an elastic member, and the elastic member is configured to release a spring force when the scraper portion moves from the retracted position to the extended position, driving the scraper to rotate towards the ground. 8. The sweeping robot according to claim 6, wherein the scraper part includes a scraper support shaft, and the scraping member is rotatably connected to the scraper support rod through the scraper support shaft; the reset member drives the scraping member to rotate around the scraper support shaft toward the ground, so as to cause the scraping member to move toward the extension position and perform the floor cleaning operation. 9. The sweeping robot according to claim 2 or 3, wherein the contact pressure between the outer peripheral surface of the cleaning member and the scraping member at the storage position is 0.5N-2N. 10. The sweeping robot according to claim 2, further comprising a linkage structure, the linkage structure including a trigger part disposed on the drive part and a driven part disposed on the scraper part and linked with the scraping member; when the drive part drives the scraper part to move toward the extension position to a preset position, the trigger part and the driven part contact and cooperate to assist the scraping member in pressing against the cleaning member. 11. The sweeping robot according to claim 10, wherein the mating surfaces of the trigger part and the driven part are mutually adapted inclined surfaces. 12. The sweeping robot according to claim 11, wherein the angle between the inclined plane and the ground is 30°–60°. 13. The sweeping robot according to claim 1, wherein the cleaning component is a roller or track for wet cleaning, and the scraper portion can clean dirt adhering to the surface of the roller or track when in the retracted position. 14. The sweeping robot according to claim 1, wherein the driving unit includes a drive motor. 15. A sweeping robot, comprising: a robot body; a cleaning component disposed at the bottom of the robot body; a scraper mechanism, including a scraper portion, a telescopic drive unit for driving the scraper portion to extend and retract, and a scraping component disposed on the scraper portion and rotatable relative to it;The scraper mechanism further includes a linkage structure configured to: in response to the scraper portion moving from an extended position to a retracted position via the telescopic drive unit, drive the scraping component to automatically switch from a first posture facing the ground to a second posture contacting the cleaning component. 16. The sweeping robot according to claim 15, wherein the linkage structure includes a trigger portion disposed on the telescopic drive unit and a driven portion disposed on the scraper portion and linked with the scraping component, the trigger portion and the driven portion engaging in contact at the retracted position. 17. The sweeping robot according to claim 16, wherein the mating surfaces of the trigger portion and the driven portion are mutually adapted inclined surfaces. 18. The sweeping robot according to claim 17, wherein the angle between the inclined surface and the ground is 30°–60°. 19. The sweeping robot according to claim 15, wherein the scraper mechanism further includes a reset member, the reset member applying an elastic force to the scraping component to cause it to tend toward the first posture. 20. The sweeping robot according to claim 19, wherein the linkage structure is configured to overcome the elastic force to drive the scraper to switch to the second posture. 21. The sweeping robot according to claim 19 or 20, wherein the scraper portion includes a scraper support rod and a scraper support shaft, the scraper is rotatably connected to the scraper support rod via the scraper support shaft, and the reset member drives the scraper to rotate around the scraper support shaft to maintain the first posture. 22. The sweeping robot according to claim 15, wherein the contact pressure between the outer peripheral surface of the cleaning component and the scraper in the second posture is 0.5N-2N. 23. The sweeping robot according to claim 15, wherein the cleaning component is a roller or track for wet cleaning, and the scraper can clean dirt adhering to the surface of the roller or track in the second posture. 24. The sweeping robot according to claim 15, wherein the telescopic drive unit includes a drive motor. Claims 2 / 2 Page 3 CN 121694613 A A Sweeping Robot Technical Field

[0001] This invention relates to the field of sweeping robot technology, specifically to a sweeping robot. Background Art

[0002] Sweeping robots are an important member of home intelligent cleaning equipment. They generally clean the floor by using a roller at the bottom. To solve the technical problem of cleaning areas that sweeping robots cannot reach, a retractable scraper mechanism has been added to sweeping robots to sweep dust and debris from areas inaccessible to the robot into the bottom of the robot. However, when sweeping robots work for extended periods...Afterwards, dust and lint easily accumulate on its rollers and extended scrapers, which affects the continuous operation of the rolling mechanism sweeper. Summary of the Invention

[0003] This invention provides a sweeping robot capable of cleaning rollers and scrapers.

[0004] To achieve the above objective, this invention provides a sweeping robot, comprising: a robot body; a cleaning component disposed at the bottom of the robot body; a scraper mechanism including a drive unit connected to the robot body and a scraper portion driven by the drive unit; the drive unit is configured to drive the scraper portion to move between a retracted position and an extended position; wherein, in the retracted position, the scraper portion contacts the cleaning component; in the extended position, the scraper portion performs cleaning operations on the ground.

[0005] Optionally, the scraper portion is provided with a scraping component for performing the cleaning operation.

[0006] Optionally, in the retracted position, the scraping component is configured to contact the cleaning component; in the extended position, the scraping component is configured to contact or be close to the ground.

[0007] Optionally, the scraper portion includes a scraper support rod, and the scraping member is hinged to the scraper support rod.

[0008] Optionally, the scraping member includes a rigid section connected to the scraper support rod and a flexible section for contacting the ground.

[0009] Optionally, the scraper mechanism further includes a reset member, which is configured to apply a force to the scraping member to cause it to move toward the extended position to perform a floor cleaning operation.

[0010] Optionally, the reset member is an elastic member, and the elastic member is configured to release a spring force when the scraper portion moves from the retracted position to the extended position, driving the scraping member to rotate toward the ground.

[0011] Optionally, the scraper portion includes a scraper support shaft, and the scraping member is rotatably connected to the scraper support rod through the scraper support shaft; the reset member drives the scraping member to rotate toward the ground about the scraper support shaft, so as to cause the scraping member to move toward the extended position and perform a floor cleaning operation.

[0012] Optionally, the contact pressure between the outer peripheral surface of the cleaning component and the scraper component at the storage position is 0.5N-2N. (Page 1 / 7, CN 121694613 A)

[0013] Optionally, the linkage structure includes a trigger portion disposed on the driving unit and a driven portion disposed on the scraper portion and linked with the scraper component. When the driving unit drives the scraper portion to move to the storage position to a preset position, the trigger portion and the driven portion contact and cooperate to assist the scraper component in pressing against the cleaning component.

[0014] Optionally, the mating surfaces of the trigger portion and the driven portion are mutually adapted inclined surfaces.

[0015] Optionally, the angle between the inclined surface and the ground is 30°-60°.

[0016] Optionally, the cleaning component is a roller or conveyor belt for wet cleaning, and the scraper portion can clean the surface when in the storage position.

[0017] Optionally, the drive unit includes a drive motor.

[0018] On the other hand, the present invention also provides a sweeping robot, including: a robot body; a cleaning component disposed at the bottom of the robot body; a scraper mechanism including a scraper portion, a telescopic drive unit for driving the scraper portion to extend and retract, and a scraping component disposed on the scraper portion and rotatable relative to it; the scraper mechanism further includes a linkage structure, the linkage structure being configured to: in response to the scraper portion moving from an extended position to a retracted position through the telescopic drive unit, drive the scraping component to automatically switch from a first posture facing the ground to a second posture contacting the cleaning component.

[0019] Optionally, the linkage structure includes a trigger portion disposed on the telescopic drive unit, and a driven portion disposed on the scraper portion and linked with the scraping component, the trigger portion and the driven portion contacting and engaging in the retracted position.

[0020] Optionally, the mating surfaces of the trigger portion and the driven portion are mutually adapted inclined surfaces.

[0021] Optionally, the angle between the inclined plane and the ground is 30°–60°.

[0022] Optionally, the scraper mechanism further includes a reset member, which applies an elastic force to the scraper to cause it to move toward the first posture.

[0023] Optionally, the linkage structure is configured to overcome the elastic force to drive the scraper to switch to the second posture.

[0024] Optionally, the scraper part includes a scraper support rod and a scraper support shaft, the scraper is rotatably connected to the scraper support rod through the scraper support shaft, and the reset member drives the scraper to rotate around the scraper support shaft to maintain the first posture.

[0025] Optionally, the contact pressure between the outer peripheral surface of the cleaning member and the scraper in the second posture is 0.5N–2N.

[0026] Optionally, the cleaning member is a roller or track for wet cleaning, and the scraper can clean dirt attached to the surface of the roller or track in the second posture.

[0027] Optionally, the telescopic drive unit includes a drive motor.

[0028] Through the above technical solution, the present invention provides a sweeping robot, which configures the scraper mechanism to contact the cleaning component of the main body when in the retracted position, thereby achieving mutual cleaning of both. Compared with the sweeping robots of the prior art, the sweeping robot provided by the present invention achieves a self-cleaning effect by contacting the scraper mechanism and the cleaning component of the main body, and has more durable performance and a more automated working process. Brief Description of the Drawings

[0029] Figure 1 is a partial structural schematic diagram of a sweeping robot according to an embodiment of the present invention; Figure 2 is a structural schematic diagram of the scraper part in the extended position according to an embodiment of the present invention;Figure 3 is a structural schematic diagram of the scraper portion in the storage position according to an embodiment of the present invention; Figure 4 is a structural schematic diagram of the scraping member according to an embodiment of the present invention; and Figure 5 is an enlarged view of the reset member according to an embodiment of the present invention.

[0030] Explanation of reference numerals: 10, scraper portion; 11, scraping member; 11-1, rigid section; 11-2, flexible section; 12, scraper support rod; 13, reset member; 14, scraper support shaft; 20, driving part; 21, linkage structure; 21-1, triggering part; 21-2, driven part; 30, cleaning member. Detailed Description

[0031] It should be noted that the acquisition, transmission, storage, use, and processing of data in the technical solution of this application all comply with the relevant provisions of laws and regulations. In the embodiments of this application, certain software, components, models, and other existing solutions in the industry may be mentioned. These should be considered as exemplary, and their purpose is only to illustrate the feasibility of the implementation of the technical solution of this application, but it does not mean that the applicant has or necessarily used the solution.

[0032] In this application, unless otherwise expressly defined, directional terms are defined as follows: Based on the robot's normal forward posture, its forward direction is defined as "forward" or "positive," and the opposite direction is defined as "rear" or "reverse." A direction perpendicular to the forward / backward direction and parallel to the cleaning surface is defined as "lateral." Specifically, when facing forward, the left side is "left-side," and the right side is "right-side." The term "lateral extension" should be understood to include, but is not limited to: extension along a purely left-right direction, oblique extension at an acute angle to the forward / backward direction (i.e., simultaneously having a backward component and a lateral component), and any extension movement that causes the scraper to extend beyond the side profile of the robot body.

[0033] Robotic vacuum cleaners are an important member of home intelligent cleaning equipment. They generally clean the floor through rollers located at the bottom. To address the technical problem of cleaning areas inaccessible to robotic vacuum cleaners, a retractable scraper mechanism has been added to robotic vacuum cleaners. This mechanism sweeps dust and debris from areas inaccessible to the robot into the bottom of the vacuum cleaner. However, after prolonged use, the rollers and extended scraper of the robotic vacuum cleaner easily accumulate dust and lint, affecting the continuous operation of the rolling mechanism type vacuum cleaner.

[0034] Example 1: To solve the above technical problem, this invention provides a robotic vacuum cleaner, as shown in Figure 1. The robotic vacuum cleaner may include a robot body, a cleaning component 30, and a scraper mechanism. The cleaning component 30 may be located at the bottom of the robot body. The scraper mechanism may include a drive unit 20 connected to the robot body and a scraper part 10 driven by the drive unit 20. The drive unit 20 may be configured to drive the scraper part 10 to move between a retracted position and an extended position. Specifically, when retracted...In the retracted position, the scraper part 10 contacts the cleaning component 30; in the extended position, the scraper part 10 performs cleaning operations on the ground.

[0035] As shown in FIG1, the scraper part 10 contacts the ground in the extended position, thus starting to perform cleaning operations on the ground. In the retracted position, as shown in FIG3, the scraper part 10 contacts the cleaning component 30. Due to the mutual contact between the two, the cleaning component 30 can be self-cleaned by the scraping of the scraper part 10, and the scraper part 10 can be self-cleaned by the cleaning effect of the cleaning component 30, thereby realizing the self-cleaning of the overall cleaning mechanism of the sweeping robot. Compared with the prior art, this sweeping robot achieves the effect of self-cleaning, has more durable performance and a more automated working process.

[0036] As an embodiment of the present invention, the specific structure of the scraper part 10 can be in various forms known to those skilled in the art. In an example of the present invention, the scraper part 10 may be provided with a scraping component 11 for performing cleaning operations. Instruction manual, page 3 / 7, CN 121694613 A: Further, in the retracted position, the scraper 11 can be configured to contact the cleaning component 30; in the extended position, the scraper 11 can be configured to contact or approach the ground. When the scraper section 10 moves from the extended position to the retracted position, the scraper 11 can bring dust and debris from the ground back to the bottom of the robot body, where it is cleaned by the cleaning component 30. When the scraper section 10 moves to the retracted position, the scraper 11 can contact the cleaning component 30, thereby achieving bidirectional self-cleaning. Due to the simple structure of the scraper 11, it is not only durable but also provides efficient and high-quality cleaning when facing relatively flat surfaces commonly used by robotic vacuum cleaners. Further, the scraper section 10 may include a scraper support rod 12, to which the scraper 11 can be hinged. The hinge structure between the scraper support rod 12 and the scraper component 11 allows the scraper component 11 to contact or detach from the ground by rotation. Compared with conventional lifting structures, this rotation structure is achieved only through a rotating shaft, which obviously has a smaller design volume and higher durability. Furthermore, as shown in FIG4, the scraper component 11 may include a rigid section 11-1 connected to the scraper support rod 12 and a flexible section 11-2 for contacting the ground. The rigid section 11-1 can be used to maintain the overall posture of the scraper component 11, while the flexible section 11-2 contacts the ground. On the one hand, it can avoid generating large resistance with the ground while scraping dust, thereby affecting the operation of the scraper part 10; on the other hand, the flexible section 11-2 can also adapt to the partial undulation shape of the ground.

[0037] As an optional embodiment, the drive structure for the scraper component 11 to contact the ground can be various that are known to those skilled in the art. In an example of the present invention, as shown in FIG5, the scraper mechanism may also include a reset member 13.The reset member 13 can be configured to apply a force to the scraper member 11 to cause it to move toward the extended position to perform floor cleaning operations. Further, the reset member 13 can be an elastic member. This elastic member can be configured to release elastic force when the scraper portion 10 moves from the retracted position to the extended position, driving the scraper member 11 toward the ground. Since the elastic member drives the scraper member 11 to rotate using its natural elastic force, this avoids the structural complexity caused by adding an additional active drive mechanism (e.g., a motor, cylinder, hydraulic cylinder, etc.), and due to the simple structure of the elastic member, the scraper member 11 has higher durability and a lower failure rate.

[0038] As an optional embodiment, the scraper portion 10 may include a scraper support shaft 14, through which the scraper member 11 can be rotatably connected to the scraper support rod 12; the reset member 13 drives the scraper member 11 to rotate about the scraper support shaft 14 toward the ground, causing the scraper member 11 to move toward the extended position and perform floor cleaning operations. The rotating structure between the scraper support rod 12, the scraper support shaft 14, and the scraper component 11 allows the scraper component 11 to contact or detach from the ground by rotating. Compared with conventional lifting structures, this rotating structure is achieved only through a rotating shaft, which obviously has a smaller design volume and higher durability.

[0039] As an optional implementation, considering that when the scraper component 11 contacts the cleaning component 30, if the mutual force is too large, it will affect the operation of the cleaning component 30; while if the mutual force is too small, it will lead to incomplete contact between the two, thereby affecting the self-cleaning effect. Therefore, in one example of the present invention, the contact pressure between the outer peripheral surface of the cleaning component 30 and the scraper component 11 at the storage position can be 0.5N-2N. This lower pressure limit ensures that the stains attached to the roller surface can be effectively scraped off to achieve thorough self-cleaning; while the upper pressure prevents excessive pressure from increasing the roller rotation resistance, increasing energy consumption, abnormal wear, or generating noise.

[0040] As an optional embodiment, the sweeping robot may further include a linkage structure 21. This linkage structure 21 may include a trigger part 21-1 disposed on the drive unit 20, and a driven part 21-2 disposed on the scraper part 10 and linked with the scraping member 11. When the drive unit 20 drives the scraper part 10 to move to a preset position (near the storage position), the trigger part 21-1 and the driven part 21-2 contact and cooperate to assist the scraping member 11 in pressing against the cleaning member 30. Through the interaction between the trigger part 21-1 and the driven part 21-2, the movement of the scraping member 11 is directly related to the movement of the drive unit 20, avoiding the need for an additional drive structure for the scraping member 11 on the scraper part 10, thereby reducing structural complexity, decreasing the design volume of the device, and improving the durability of the sweeping robot. Furthermore, the mating surfaces of the trigger part 21-1 and the driven part 21-2 can be mutually compatible. (See page 4 / 7 of the specification, 7 CN)121694613 A Inclined Surface. When the scraper part 10 is in the extended position, the mating surfaces of the trigger part 21-1 and the driven part 21-2 disengage, causing the scraper 11 to approach the ground in its natural state, thus initiating cleaning. When the scraper part 10 moves from the extended position to the retracted position and reaches a preset position, the mating surfaces of the trigger part 21-1 and the driven part 21-2 come into contact with each other. Due to the interaction of the inclined surfaces, the scraper 11 is squeezed into contact with the cleaning part 30, thereby achieving the self-cleaning function of both. Furthermore, the angle of this inclined surface can be any of the values ​​known to those skilled in the art. Considering the magnitude of the force of contact between the two and the smooth posture switching of the scraper 11, in one example of the present invention, the angle between the inclined surface and the ground can range from 30° to 60°. When the included angle is above 30°, it can provide sufficient vertical force to ensure that the scraper is stably pressed against the surface of the cleaning component, achieving effective cleaning contact; while controlling the included angle within 60° avoids excessive horizontal force due to an overly steep slope, thereby preventing mechanism jamming, increased wear, or switching impact. This angle range allows the inclined mating structure to maintain reliable guiding and self-locking characteristics during long-term use, and even in the presence of manufacturing tolerances or slight wear, it can still ensure smooth and accurate switching of the scraper between the extended and retracted states.

[0041] As an optional embodiment, the cleaning component 30 can be a roller or track for wet cleaning, and the scraper part 10 can clean the dirt attached to the surface of the roller or track when in the retracted position. Since the cleaning component 30 and the scraper portion 10 are in contact with each other, and the cleaning component 30 is a roller or track, the cleaning component 30 can clean the roller or track through the scraping action of the scraper portion 10 when it rotates. Dust adhering to the scraper portion 10 is also carried away by the roller during the scraping process, thus achieving self-cleaning of both. For example, the cleaning component 30 can be a wet cleaning roller, the surface of which is covered with a microfiber mop or sponge material, and can be moistened by a water tank or base station. When the scraper mechanism is in the retracted position, the scraper portion 10 can press against or scrape the surface of the wet cleaning roller to remove excess water or attached stains. Since the scraping process moistens the scraper portion 10 in the reverse direction, the dust adhering to the scraper portion 10 is carried away with the rotation of the roller, thus achieving bidirectional self-cleaning. As another example, the cleaning component 30 can be a cleaning track, the surface of which may include a microfiber mop or sponge material, and can be moistened by a water tank or base station. When the scraper mechanism is in the retracted position, the scraper part 10 can press against or scrape the surface of the track to remove excess water or attached stains. Since the scraping process also wets the scraper part 10 in the reverse direction, the dust adhering to the scraper part 10 is carried away with the rotation of the track, thus achieving bidirectional self-cleaning.

[0042] Example 2:On the other hand, the present invention also provides a sweeping robot, which may include a robot body, a cleaning component 30, and a scraper mechanism. The cleaning component 30 may be disposed at the bottom of the robot body. The scraper mechanism may include a scraper portion 10, a telescopic drive unit (drive portion 20) for driving the scraper portion 10 to extend and retract, and a scraping component 11 disposed on the scraper portion 10 and rotatable relative to it. The scraper mechanism may also include a linkage structure 21, which may be configured to: in response to the scraper portion 10 moving from an extended position to a retracted position via the telescopic drive unit, drive the scraping component 11 to automatically switch from a first posture facing the ground to a second posture contacting the cleaning component 30.

[0043] With this sweeping robot, when the scraper portion 10 moves from an extended position to a retracted position via the telescopic drive unit, the linkage structure 21 drives the scraping component 11 to automatically switch from a first posture facing the ground to a second posture contacting the cleaning component 30. On the one hand, when the scraper 11 contacts the ground, it can clean the ground. When it is retracted to the storage position, it can contact the cleaning component 30, thereby realizing the bidirectional self-cleaning function with the cleaning component 30. On the other hand, since the action of the telescopic drive unit driving the scraper part 10 to move from an extended position to a storage position and the action of the linkage structure 21 driving the scraper 11 to automatically switch from a first posture facing the ground to a second posture contacting the cleaning component 30 are performed synchronously, the overall switching process is smoother and less time-consuming, thereby improving the working efficiency of the sweeping robot.

[0044] As an optional implementation, the specific form of the linkage structure 21 can be various that are known to those skilled in the art, including but not limited to motor drive, cylinder drive, hydraulic drive, etc. In one example of the present invention, the linkage structure 21 may include a trigger portion 21-1 disposed on the telescopic drive unit, and a driven portion 21-2 disposed on the scraper portion 10 and linked with the scraping member 11. The trigger portion 21-1 and the driven portion 21-2 are in contact and engaged in the storage position. Through the interaction between the trigger portion 21-1 and the driven portion 21-2, the movement of the scraping member 11 and the movement of the telescopic drive unit are directly correlated, avoiding the need to additionally provide a drive structure for the scraping member 11 on the scraper portion 10, thereby reducing the complexity of the structure, reducing the design volume of the device, and improving the durability of the sweeping robot. Furthermore, the mating surfaces of the trigger portion 21-1 and the driven portion 21-2 may be mutually adaptable inclined surfaces. When the scraper part 10 is in the extended position, the mating surfaces of the trigger part 21-1 and the driven part 21-2 disengage, causing the scraper 11 to move towards the ground in its natural state, thus initiating cleaning. When the scraper part 10 moves from the extended position to the retracted position and reaches a preset position, the mating surfaces of the trigger part 21-1 and the driven part 21-2 come into contact, and cleaning begins.Due to the interaction of the inclined surfaces, the scraper 11 is pressed into contact with the cleaning component 30, thereby achieving a self-cleaning function for both. Furthermore, the angle of this inclined surface can be any of the values ​​known to those skilled in the art. Considering the magnitude of the contact force between the two and the smooth switching of the scraper 11's posture, in one example of the present invention, the angle between the inclined surface and the ground can range from 30° to 60°. When the angle is above 30°, sufficient vertical force is provided to ensure that the scraper is stably pressed against the surface of the cleaning component, achieving effective cleaning contact; while controlling the angle within 60° avoids excessive horizontal force due to an overly steep inclined surface, thus preventing mechanism jamming, increased wear, or switching impact. This angle range allows the inclined surface mating structure to maintain reliable guiding and self-locking characteristics during long-term use, ensuring smooth and precise switching of the scraper between extended and retracted states even with manufacturing tolerances or slight wear.

[0045] As an optional implementation, the specific structure for driving the scraper 11 to switch to the first posture (facing the ground) can be various that are known to those skilled in the art. In one example of the invention, the scraper mechanism may further include a reset member 13, which can apply an elastic force to the scraper 11 to cause it to tend toward the first posture. Since the reset member 13 drives the scraper 11 to rotate to switch to the first posture by the elastic force in its natural state, this avoids the problem of structural complexity caused by adding an additional active drive mechanism (e.g., a motor, cylinder, hydraulic cylinder, etc.), and due to the simple structure of the reset member 13, this makes the scraper 11 more durable and has a lower failure rate. Further, the linkage structure 21 may be configured to overcome the elastic force to drive the scraper 11 to switch to the second posture. Since the reset member 13 drives the scraper member 11 to rotate through elasticity, thereby switching to the first posture, in order to further simplify the structure and improve the durability of the product, the linkage structure 21 can directly switch the scraper member 11 from the first posture to the second posture through the trigger structure corresponding to the reset member 13 on the robot vacuum cleaner. This configuration structure avoids the need to add an additional drive structure to drive the scraper member 11 to rotate in the opposite direction on the scraper part 10, thus reducing the design volume of the product.

[0046] As an optional embodiment, the scraper part 10 may include a scraper support rod 12 and a scraper support shaft 14. The scraper member 11 can be rotatably connected to the scraper support rod 12 through the scraper support shaft 14. The reset member 13 drives the scraper member 11 to rotate around the scraper support shaft 14 to maintain the first posture. The rotating structure between the scraper support rod 12, the scraper support shaft 14, and the scraper component 11 enables the scraper component 11 to switch to or maintain the first posture by rotating. Compared with conventional lifting structures, this rotating structure is achieved only by rotating the shaft, which obviously has a smaller design volume and higher durability.

[0047] As an optional embodiment, considering that when the scraper 11 contacts the cleaning member 30, if the mutual force is too large, it will affect the operation of the cleaning member 30; while if the mutual force is too small, it will lead to incomplete contact between the two, thereby affecting the self-cleaning effect. Therefore, in one example of the present invention, the contact pressure between the outer peripheral surface of the cleaning member 30 and the scraper 11 at the storage position can be 0.5N-2N.

[0048] As an optional embodiment, considering that the cleaning member 30 is a roller or track for wet cleaning, the scraper 11 can clean the dirt attached to the surface of the roller or track in the second posture. Since the cleaning component 30 and the scraper portion 10 are in contact with each other in the second posture, and the cleaning component 30 is a roller or track, the cleaning component 30 can clean the roller or track through the scraping action of the scraper portion 10 when it rotates. Dust adhering to the scraper portion 10 is also carried away by the roller during the scraping process, thus achieving self-cleaning of both. For example, the cleaning component 30 can be a wet cleaning roller, the surface of which is covered with a fiber mop or sponge material and can be moistened by a water tank or base station. When the scraper component 11 is in the second posture, it can press against or scrape the surface of the wet cleaning roller to remove excess water or attached stains. Since the scraping process reverses and wets the scraper portion 10, the dust adhering to the scraper component 11 is carried away with the rotation of the roller, thus achieving bidirectional self-cleaning. As another example, the cleaning component 30 can be a cleaning track, the surface of which may include a fiber mop or sponge material and can be moistened by a water tank or base station. When the scraping component 11 is in the second posture, it can press against or scrape the surface of the track to remove excess water or attached stains. Since the scraping process reverses and wets the scraper part 10, the dust adhering to the scraper part 10 is carried away with the rotation of the track, thus achieving bidirectional self-cleaning.

[0049] As an optional implementation, the specific form of the telescopic drive unit can be various forms known to those skilled in the art, including but not limited to cylinders, motors, hydraulic cylinders, and other drive structures. Considering the size of the sweeping robot itself, the safety and size of structures such as cylinders and hydraulic cylinders are difficult to meet requirements. Therefore, in one example of the present invention, the telescopic drive unit may include a drive motor. Further, the drive motor can drive the scraper part 10 to move between the extended position and the retracted position through a multi-link structure.

[0050] Through the above technical solution, the embodiments of the present invention provide a sweeping robot, which configures the scraper mechanism to contact the cleaning component of the main body when in the retracted position, thereby achieving mutual cleaning of both. Compared to existing robotic vacuum cleaners, the robotic vacuum cleaner provided by this invention, through the integration of the scraper mechanism and the main body...The cleaning component contacts the surface, achieving a self-cleaning effect, resulting in greater durability and a more automated working process.

[0051] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention. This includes combining various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention. Instruction sheet 7 / 7 page 10 CN 121694613 A Figure 1 Figure 2 Instruction sheet with drawing 1 / 3 page 11 CN 121694613 A Figure 3 Figure 4 Instruction sheet with drawing 2 / 3 page 12 CN 121694613 A Figure 5 Instruction sheet with drawing 3 / 3 page 13 CN 121694613 AA ROBOTIC VACUUM CLEANER Abstract The present invention relates to the technical field of robotic vacuum cleaners, and discloses a robotic vacuum cleaner. The robotic vacuum cleaner includes a robot body, cleaning members disposed at the bottom of the robot body, and a scraper mechanism. The scraper mechanism consists of a driving portion connected to the robot body and a scraper portion driven by the driving portion.and at the extended position, the scraper portion performs ground cleaning operation. In the robotic vacuum cleaner of the present invention, the scraper mechanism is arranged to contact the cleaning members of the main body when located at the retracted position, so as to realize mutual cleaning therebetween. Compared with the robotic vacuum cleaners in the prior art, the robotic vacuum cleaner provided by the present invention achieves a self-cleaning effect by bringing the scraper mechanism into contact with the cleaning members of the main body, and has better durability and a more automated working process.

Claims

1. A robotic vacuum cleaner, characterized in that, include: The robot itself; A cleaning component is located at the bottom of the robot body; The scraper mechanism includes a drive unit connected to the robot body and a scraper unit driven by the drive unit; The drive unit is configured to drive the scraper unit to move between a retracted position and an extended position; In the storage position, the scraper part contacts the cleaning component; in the extended position, the scraper part performs cleaning operations on the ground.

2. The sweeping robot according to claim 1, characterized in that, The scraper section is provided with a scraping element for performing the cleaning operation.

3. The sweeping robot according to claim 2, characterized in that, In the stored position, the scraper is configured to contact the cleaning component; in the extended position, the scraper is configured to contact or be close to the ground.

4. The sweeping robot according to claim 3, characterized in that, The scraper section includes a scraper support rod, and the scraping element is hinged to the scraper support rod.

5. The sweeping robot according to claim 4, characterized in that, The scraping component includes a rigid section connected to the scraper support rod and a flexible section for contacting the ground.

6. The sweeping robot according to claim 4, characterized in that, The scraper mechanism further includes a reset member configured to apply a force to the scraper to move it toward the extended position to perform a floor cleaning operation.

7. The sweeping robot according to claim 6, characterized in that, The reset member is an elastic member, and the elastic member is configured to release elastic force when the scraper part moves from the retracted position to the extended position, driving the scraper to rotate toward the ground.

8. The sweeping robot according to claim 6, characterized in that, The scraper section includes a scraper support shaft, and the scraping member is rotatably connected to the scraper support rod through the scraper support shaft; the reset member drives the scraping member to rotate around the scraper support shaft toward the ground, so as to cause the scraping member to move toward the extended position and perform the ground cleaning operation.

9. The sweeping robot according to claim 2 or 3, characterized in that, The contact pressure between the outer peripheral surface of the cleaning component and the scraper at the storage location is 0.5N-2N.

10. The sweeping robot according to claim 2, characterized in that, It also includes a linkage structure, which includes a trigger part disposed on the drive part and a driven part disposed on the scraper part and linked with the scraper. When the drive part drives the scraper part to move to the extension position to the preset position, the trigger part and the driven part contact and cooperate to assist the scraper in pressing against the cleaning part.

11. The sweeping robot according to claim 10, characterized in that, The mating surfaces of the triggering part and the driven part are mutually adapted inclined surfaces.

12. The sweeping robot according to claim 11, characterized in that, The angle between the inclined plane and the ground is 30°-60°.

13. The sweeping robot according to claim 1, characterized in that, The cleaning component is a roller or track for wet cleaning, and the scraper can clean dirt adhering to the surface of the roller or track when it is in the retracted position.

14. The sweeping robot according to claim 1, characterized in that, The drive unit includes a drive motor.

15. A robotic vacuum cleaner, characterized in that, include: The robot itself; A cleaning component is located at the bottom of the robot body; The scraper mechanism includes a scraper section, a telescopic drive unit for driving the scraper section to extend and retract, and a scraping component disposed on the scraper section and rotatable relative to it. The scraper mechanism also includes a linkage structure, which is configured to: in response to the scraper part moving from an extended position to a retracted position via the telescopic drive unit, drive the scraping component to automatically switch from a first posture facing the ground to a second posture contacting the cleaning component.

16. The sweeping robot according to claim 15, characterized in that, The linkage structure includes a trigger part disposed on the telescopic drive unit and a driven part disposed on the scraper part and linked with the scraping member, wherein the trigger part and the driven part are in contact and engaged at the storage position.

17. The sweeping robot according to claim 16, characterized in that, The mating surfaces of the triggering part and the driven part are mutually adapted inclined surfaces.

18. The sweeping robot according to claim 17, characterized in that, The angle between the inclined plane and the ground is 30°-60°.

19. The sweeping robot according to claim 15, characterized in that, The scraper mechanism further includes a reset member that applies an elastic force to the scraper to cause it to move toward the first posture.

20. The sweeping robot according to claim 19, characterized in that, The linkage structure is configured to overcome the elastic force to drive the scraper to switch to the second posture.

21. The sweeping robot according to claim 19 or 20, characterized in that, The scraper section includes a scraper support rod and a scraper support shaft. The scraping member is rotatably connected to the scraper support rod via the scraper support shaft. The reset member drives the scraping member to rotate around the scraper support shaft to maintain a first posture.

22. The sweeping robot according to claim 15, characterized in that, The contact pressure between the outer peripheral surface of the cleaning component and the scraping component in the second posture is 0.5N-2N.

23. The sweeping robot according to claim 15, characterized in that, The cleaning component is a roller or track for wet cleaning, and the scraping component can clean dirt adhering to the surface of the roller or track in the second posture.

24. The sweeping robot according to claim 15, characterized in that, The telescopic drive unit includes a drive motor.

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