Intelligent property platform on-duty robot
By designing height adjustment devices, screen cleaning devices and floor cleaning devices for property duty robots, the problem of robots being unable to perform floor cleaning and touch screen dust fingerprints at the same time in the prior art is solved, and higher functionality and applicability are achieved.
Patent Information
- Application Number
- CN202411788883.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-02-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing property duty robots cannot clean the ground at the same time during patrol, and the dust fingerprint problem of the touch screen affects the stability of use, resulting in poor functionality.
A smart property platform duty robot was designed, equipped with a height adjustment device, a screen cleaning device and a floor cleaning device. The height adjustment device can adjust the height of the machine head, the screen cleaning device can clean the touch screen, and the floor cleaning device includes a cleaning mechanism and a vacuum cleaner mechanism, which can clean up dust and debris on the ground.
It realizes that the robot can clean the ground at the same time during patrol, maintains the cleanliness and stability of the touch screen, and enhances the functionality and applicability of the robot.
Smart Images

Figure CN119388456A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of property duty robots, and in particular to a smart property platform duty robot. Background Art
[0002] With the development of urban construction, various residences, commercial buildings, office buildings, standard industrial plants and residential communities are increasing day by day. The corresponding supporting property management has also entered the public's field of vision and become an indispensable service in people's lives. A safe, comfortable and secure living environment is people's pursuit of high-quality life; management is to do a good job in the management of household registration, property rights, industry, leasing, rent, equipment and other aspects; property management is basically divided into two aspects: management and service. The service aspect is mainly to fully ensure that user requirements are met and provide daily services in a timely manner. Property safety management is an important part of property management in places such as communities or office buildings; there are many problems in property safety management today, such as loopholes in safety management, etc. The existence of these problems will have a great impact on community safety.
[0003] A robot is a machine device that performs work automatically. It can accept human commands and run pre-programmed programs. Robots are used in all walks of life. Many property management sites now use on-duty robots for patrolling. However, existing property on-duty robots cannot clean the ground at the same time during patrolling, and the touch screens on existing on-duty robots will leave dust and fingerprints on the touch screens after use, which affects the cleanliness and stability of the touch screens, making the overall functionality of the robot poor and unable to meet different usage requirements. Summary of the invention
[0004] The purpose of the present invention is to solve the shortcomings of the prior art and propose a smart property platform duty robot.
[0005] In order to achieve the above object, the present invention adopts the following technical solutions:
[0006] The smart property platform duty robot comprises a body, two walking components are arranged at the bottom of the body, a head is arranged above the body, a camera component is arranged at the top of the head, a touch screen is arranged on the side wall of the head, and further comprises:
[0007] A height adjustment device is arranged at the upper end of the fuselage and connected to the head of the machine to adjust the height of the head of the machine;
[0008] A screen cleaning device, arranged on the side wall of the machine head, for cleaning the touch screen;
[0009] The floor cleaning device is arranged on the inner side of the bottom of the fuselage and is used for cleaning the floor.
[0010] As a further improvement of the present invention, the height adjustment device includes a second electric telescopic rod fixedly embedded in the middle of the upper end of the fuselage, and the telescopic end of the second electric telescopic rod faces upward and is fixedly connected to the lower end of the head.
[0011] As a further improvement of the present invention, the screen cleaning device includes a mounting frame fixedly connected to the side wall of the machine head, the mounting frame is arranged around the outside of the touch screen, a mounting groove is provided inside the mounting frame, a moving rod is provided inside the mounting groove, an insertion groove is provided on a side wall of the moving rod close to the touch screen, a cleaning mechanism is provided inside the insertion groove, two first electric telescopic rods are fixedly installed on the inner top wall of the mounting groove, the two first electric telescopic rods are symmetrically arranged on both sides of the touch screen, and the telescopic end of the first electric telescopic rod faces downward and is fixedly connected to the upper side wall of the moving rod.
[0012] As a further improvement of the present invention, the floor cleaning device comprises a device box arranged inside the lower end of the fuselage, two third electric telescopic rods are fixedly installed on the top of the lower end of the fuselage, the telescopic ends of the two third electric telescopic rods are both downward and fixedly connected to the upper end of the device box, the interior of the device box is provided with a cleaning mechanism extending to the bottom of the device box, and the interior of the device box is provided with a dust collection mechanism connected to the cleaning mechanism;
[0013] The dust collection mechanism includes a dust collection box fixedly connected to the inside of the device box, the bottom of the device box is penetrated with an opening connected to the inside of the dust collection box, the inside of the dust collection box is provided with a filter screen cylinder, both ends of the filter screen cylinder are fixedly connected with hollow tubes, the two hollow tubes respectively penetrate the inner walls of the dust collection box on both sides opposite to each other, and the hollow tubes are rotatably connected to the dust collection box, and a suction fan and a motor are respectively installed on the inner walls of the device box on both sides opposite to each other, the suction end of the suction fan is connected to one of the hollow tubes through a rotating ventilation joint, and the output end of the motor is fixedly connected to the other hollow tube;
[0014] The cleaning mechanism comprises two first rotating shafts which are arranged on the bottom wall of the device box through the first rotating shafts, the lower ends of the two first rotating shafts are fixedly connected to cleaning brushes, the upper ends of the two first rotating shafts are fixedly connected to second bevel gears, a second rotating shaft is arranged horizontally inside the device box, both ends of the second rotating shaft are rotatably connected to the inner wall of the device box, two first bevel gears are fixedly sleeved on the side wall of the second rotating shaft, the two first bevel gears are respectively meshed with the two second bevel gears, a second sprocket is fixedly sleeved on the second rotating shaft, a first sprocket is fixedly sleeved on the side wall of the hollow tube connected to the motor, and the first sprocket is connected to the second sprocket through a transmission chain;
[0015] The side wall of the device box is penetrated by a pull-out groove connected to the interior of the dust collector box, the interior of the pull-out groove is provided with a collection box located below the filter screen cylinder, the interior of the collection box is fixedly connected to a cleaning scraper that fits under the filter screen cylinder, a handle is fixedly connected to the side wall of the collection box, and magnetic plates are fixedly embedded on the two opposite side walls of the pull-out groove, and the collection box is magnetically adsorbed to the magnetic plates.
[0016] As a further improvement of the present invention, a lifting slot is provided at the upper end of the fuselage, the lifting slot is close to the edge of the fuselage, a lifting baffle is slidably inserted inside the lifting slot, and the upper end of the lifting baffle is fixedly connected to the lower end of the machine head.
[0017] As a further improvement of the present invention, the cleaning mechanism includes a cleaning pad inserted into an insertion slot, the inner wall of the insertion slot is provided with a clamp for clamping the cleaning pad, a screw is penetrated through a side wall of the movable rod away from the insertion slot, the screw is threadedly connected to the movable rod, and one end of the screw located in the insertion slot is rotatably connected to the side wall of the clamp.
[0018] As a further improvement of the present invention, a protective plate is fixedly connected to the side wall of the moving rod, and the protective plate is located outside the installation frame.
[0019] As a further improvement of the present invention, a collecting guide plate corresponding to the opening position is fixedly connected to the bottom of the device box.
[0020] As a further improvement of the present invention, an openable and closable sealing door is provided at the lower back side of the fuselage.
[0021] Beneficial effects of the present invention:
[0022] By providing a height adjustment device and extending and retracting the second electric telescopic rod, the height of the machine head can be flexibly adjusted, that is, the height of the touch screen can be adjusted, thereby meeting the needs of people of different heights (adults or children), and having higher applicability.
[0023] By setting up a screen cleaning device, the first electric telescopic rod is extended to drive the moving rod to move downward, and the moving rod can drive the cleaning pad to move downward along the surface of the touch screen to wipe and clean the surface of the touch screen, thereby removing dust and fingerprints on the surface of the touch screen, maintaining the cleanliness of the surface of the touch screen, and maintaining the stability of the touch screen during use.
[0024] By setting up a floor cleaning device, the dust and debris on the floor can be swept to the collecting guide plate by a cleaning brush, and by starting the suction fan, negative pressure can be generated on the surface of the filter cylinder, so that the dust and debris introduced into the dust collection box through the collecting guide plate can be adsorbed on the surface of the filter cylinder, and then by driving the filter cylinder to rotate, the dust and debris adsorbed on the surface of the filter cylinder can be scraped off by a cleaning scraper, and the scraped dust and debris can be collected by a collection box.
[0025] The present invention can meet the needs of property duty and patrol, and at the same time can maintain the cleanliness of the touch screen surface, maintain the stability of the touch screen in use, and can clean the ground during the duty process. It has rich functions and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a schematic diagram of the structure of the smart property platform duty robot proposed in the present invention from a top-down perspective;
[0027] Figure 2 This is a structural schematic diagram of the upward-looking perspective of the smart property platform duty robot proposed by the present invention;
[0028] Figure 3 This is a structural schematic diagram of the first electric telescopic rod, moving rod, insertion slot, cleaning pad, and protective plate of the smart property platform duty robot proposed in the present invention;
[0029] Figure 4 This is a schematic diagram of the structure of the mobile rod, insertion slot, cleaning pad, clamping plate, and screw of the smart property platform duty robot proposed in the present invention;
[0030] Figure 5 This is a structural schematic diagram of the body, lifting baffle, second electric telescopic rod, and sealing door of the smart property platform duty robot proposed by the present invention;
[0031] Figure 6 This is a schematic diagram of the structure of the floor cleaning device of the smart property platform duty robot proposed by the present invention from a top view;
[0032] Figure 7 This is a structural schematic diagram of the floor cleaning device of the smart property platform duty robot proposed by the present invention from an upward perspective;
[0033] Figure 8 This is a schematic diagram of the structure of the dust collection mechanism and the cleaning mechanism of the smart property platform duty robot proposed by the present invention;
[0034] Fig. 9 This is a schematic diagram of the structure of the collection box, handle, cleaning scraper, filter cylinder and hollow tube of the smart property platform duty robot proposed in the present invention.
[0035] In the figure: 1 body, 2 head, 3 lifting baffle, 4 camera assembly, 5 installation frame, 6 protection plate, 7 installation slot, 8 touch screen, 9 walking assembly, 10 device box, 11 collection guide plate, 12 collection port, 13 cleaning brush, 14 first electric telescopic rod, 15 moving rod, 16 insertion slot, 17 cleaning pad, 18 clamping plate, 19 screw, 20 lifting slot, 21 second electric telescopic rod, 22 sealing door, 23 third electric telescopic rod, 24 handle, 25 pulling slot, 26 magnetic plate, 27 collection box, 28 first rotating shaft, 29 dust collection box, 30 suction fan, 31 motor, 32 first sprocket, 33 transmission chain, 34 second sprocket, 35 second rotating shaft, 36 first bevel gear, 37 second bevel gear, 38 hollow tube, 39 cleaning scraper, 40 filter cylinder. DETAILED DESCRIPTION
[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0037] Reference Figure 1-Figure 9 The smart property platform duty robot includes a body 1, two walking components 9 are arranged at the bottom of the body 1, a head 2 is arranged above the body 1, a camera component 4 is arranged on the top of the head 2, and a touch screen 8 is arranged on the side wall of the head 2, and also includes:
[0038] A height adjustment device is disposed at the upper end of the fuselage 1 and is connected to the head 2 to adjust the height of the head 2;
[0039] A screen cleaning device, arranged on the side wall of the machine head 2, for cleaning the touch screen 8;
[0040] The floor cleaning device is arranged on the inner side of the bottom of the body 1 and is used for cleaning the floor.
[0041] In the present invention, the height adjustment device includes a second electric telescopic rod 21 fixedly embedded in the middle of the upper end of the fuselage 1, the telescopic end of the second electric telescopic rod 21 faces upward and is fixedly connected to the lower end of the head 2, and a lifting groove 20 is provided at the upper end of the fuselage 1, and the lifting groove 20 is close to the edge of the fuselage 1. A lifting baffle 3 is slidably inserted inside the lifting groove 20, and the upper end of the lifting baffle 3 is fixedly connected to the lower end of the head 2. The lifting baffle 3 can play a role of enclosure, which can not only block the gap between the diameter of the head 2 and the fuselage 1 to improve safety, but also maintain the stability of the head 2.
[0042] The screen cleaning device includes a mounting frame 5 fixedly connected to the side wall of the machine head 2, the mounting frame 5 is arranged around the outside of the touch screen 8, a mounting groove 7 is arranged inside the mounting frame 5, a moving rod 15 is arranged inside the mounting groove 7, an insertion groove 16 is arranged on a side wall of the moving rod 15 close to the touch screen 8, a cleaning mechanism is arranged inside the insertion groove 16, two first electric telescopic rods 14 are fixedly installed on the inner top wall of the mounting groove 7, the two first electric telescopic rods 14 are symmetrically arranged on both sides of the touch screen 8, the telescopic ends of the first electric telescopic rods 14 face downward and are fixedly connected to the upper side wall of the moving rod 15, a protective plate 6 is fixedly connected to the side wall of the moving rod 15, and the protective plate 6 is located on the outside of the mounting frame 5. When the touch screen 8 is not in use, the downward movement of the moving rod 15 can drive the protective plate 6 to shield and protect the outside of the touch screen 8, thereby protecting the touch screen 8.
[0043] The floor cleaning device includes a device box 10 disposed inside the lower end of the fuselage 1, two third electric telescopic rods 23 are fixedly installed on the top of the lower end of the fuselage 1, the telescopic ends of the two third electric telescopic rods 23 are both downward and fixedly connected to the upper end of the device box 10, the inside of the device box 10 is provided with a cleaning mechanism extending to the bottom of the device box 10, and the inside of the device box 10 is provided with a dust collection mechanism connected to the cleaning mechanism;
[0044] The dust collection mechanism includes a dust collection box 29 fixedly connected to the inside of the device box 10, the bottom of the device box 10 is penetrated with an opening connected to the inside of the dust collection box 29, the inside of the dust collection box 29 is provided with a filter screen cylinder 40, both ends of the filter screen cylinder 40 are fixedly connected with hollow tubes 38, the two hollow tubes 38 respectively penetrate the inner walls of the dust collection box 29 on both sides opposite to each other, and the hollow tubes 38 are rotatably connected to the dust collection box 29, and the suction fan 30 and the motor 31 are respectively installed on the inner walls of the device box 10 on both sides opposite to each other, the suction end of the suction fan 30 is connected to one of the hollow tubes 38 through a rotating ventilation joint, and the output end of the motor 31 is fixedly connected to the other hollow tube 38;
[0045] The cleaning mechanism includes two first rotating shafts 28 that penetrate the inner bottom wall of the device box 10, the lower ends of the two first rotating shafts 28 are fixedly connected with cleaning brushes 13, the upper ends of the two first rotating shafts 28 are fixedly connected with second bevel gears 37, a second rotating shaft 35 is horizontally arranged inside the device box 10, both ends of the second rotating shaft 35 are rotatably connected to the inner wall of the device box 10, two first bevel gears 36 are fixedly sleeved on the side wall of the second rotating shaft 35, the two first bevel gears 36 are respectively meshed with the two second bevel gears 37, a second sprocket 34 is fixedly sleeved on the second rotating shaft 35, a first sprocket 32 is fixedly sleeved on the side wall of the hollow tube 38 connected to the motor 31, and the first sprocket 32 is connected to the second sprocket 34 through a transmission chain 33;
[0046] A pull-out slot 25 connected to the interior of the dust box 29 is provided on the side wall of the device box 10, and a collection box 27 located below the filter cylinder 40 is provided inside the pull-out slot 25. A cleaning scraper 39 that fits under the filter cylinder 40 is fixedly connected to the interior of the collection box 27, and a handle 24 is fixedly connected to the side wall of the collection box 27. Magnetic plates 26 are fixedly embedded on the two opposite side walls of the pull-out slot 25. The collection box 27 is magnetically attracted to the magnetic plates 26, so that the collection box 27 can be fixed inside the dust box 29. A collection guide plate 11 corresponding to the opening position is fixedly connected to the bottom of the device box 10, and an openable and closable sealing door 22 is provided on the lower back of the fuselage 1. The sealing door 22 can be easily pulled out of the collection box 27, so that the collection box 27 can be easily cleaned.
[0047] The cleaning mechanism includes a cleaning pad 17 inserted into an insertion slot 16, and an inner wall of the insertion slot 16 is provided with a clamping plate 18 for clamping the cleaning pad 17. A screw 19 is penetrated through a side wall of the moving rod 15 away from the insertion slot 16, and the screw 19 is threadedly connected to the moving rod 15. One end of the screw 19 located in the insertion slot 16 is rotatably connected to the side wall of the clamping plate 18.
[0048] When the present invention is used, the walking component 9 can drive the robot to move and walk, and the camera component 4 can monitor and patrol;
[0049] When it is necessary to clean the floor, the third electric telescopic rod 23 is started to extend, driving the device box 10 to move downward, and the motor 31 is started to drive the hollow tube 38 to rotate, and the filter cylinder 40 is driven to rotate through the hollow tube 38. The transmission effect of the first sprocket 32, the second sprocket 34, and the transmission chain 33 can drive the second rotating shaft 35 to rotate. Since the first bevel gear 36 is meshed with the second bevel gear 37, the first rotating shaft 28 can be driven to rotate, and the cleaning brush 13 is driven to rotate through the first rotating shaft 28. Through the rotation cooperation of the two cleaning brushes 13, the dust and debris on the floor can be cleaned to the collecting guide plate 11, and by starting the suction fan 30, negative pressure can be generated on the surface of the filter cylinder 40, so that the dust and debris introduced into the dust collection box 29 through the collecting guide plate 11 can be adsorbed on the surface of the filter cylinder 40, and then by driving the rotation of the filter cylinder 40, the cleaning scraper 39 can be used to scrape off the dust and debris adsorbed on the surface of the filter cylinder 40, and the scraped dust and debris is collected by the collecting box 27;
[0050] After the touch screen 8 is used once, the first electric telescopic rod 14 is extended to drive the moving rod 15 to move downward. The downward movement of the moving rod 15 can drive the cleaning pad 17 to move downward along the surface of the touch screen 8 to wipe and clean the surface of the touch screen 8, thereby removing dust and fingerprints on the surface of the touch screen 8, maintaining the cleanliness of the surface of the touch screen 8, and maintaining the stability of the touch screen 8 during use.
[0051] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A smart property platform duty robot, comprising a body (1), two walking components (9) being provided at the bottom of the body (1), a head (2) being provided above the body (1), a camera component (4) being provided at the top of the head (2), and a touch screen (8) being provided on the side wall of the head (2), characterized in that: Also includes: A height adjustment device, arranged at the upper end of the machine body (1), and connected to the machine head (2), for adjusting the height of the machine head (2); A screen cleaning device, arranged on a side wall of the machine head (2) and used for cleaning the touch screen (8); A floor cleaning device is arranged on the inner side of the bottom of the machine body (1) and is used for cleaning the floor.
2. The smart property platform duty robot according to claim 1 is characterized in that: The height adjustment device comprises a second electric telescopic rod (21) fixedly embedded in the middle of the upper end of the machine body (1), the telescopic end of the second electric telescopic rod (21) facing upward and fixedly connected to the lower end of the machine head (2).
3. The smart property platform duty robot according to claim 1 is characterized in that: The screen cleaning device comprises a mounting frame (5) fixedly connected to the side wall of the machine head (2), the mounting frame (5) being arranged around the outside of the touch screen (8), a mounting groove (7) being arranged inside the mounting frame (5), a moving rod (15) being arranged inside the mounting groove (7), an insertion groove (16) being arranged on a side wall of the moving rod (15) close to the touch screen (8), a cleaning mechanism being arranged inside the insertion groove (16), two first electric telescopic rods (14) being fixedly installed on the inner top wall of the mounting groove (7), the two first electric telescopic rods (14) being symmetrically arranged on both sides of the touch screen (8), the telescopic end of the first electric telescopic rod (14) facing downward and being fixedly connected to the upper side wall of the moving rod (15).
4. The smart property platform duty robot according to claim 1, characterized in that: The floor cleaning device comprises a device box (10) arranged inside the lower end of a machine body (1), two third electric telescopic rods (23) are fixedly installed on the top of the lower end of the machine body (1), the telescopic ends of the two third electric telescopic rods (23) are both downwardly facing and fixedly connected to the upper end of the device box (10), a cleaning mechanism extending to the bottom of the device box (10) is provided inside the device box (10), and a dust collection mechanism connected to the cleaning mechanism is provided inside the device box (10); The dust collection mechanism comprises a dust collection box (29) fixedly connected to the inside of the device box (10); an opening communicating with the inside of the dust collection box (29) is penetrated through the bottom of the device box (10); a filter screen cylinder (40) is provided inside the dust collection box (29); both ends of the filter screen cylinder (40) are fixedly connected with hollow tubes (38); the two hollow tubes (38) respectively penetrate the inner walls of the dust collection box (29) on both sides opposite to each other, and the hollow tubes (38) are rotatably connected to the dust collection box (29); a suction fan (30) and a motor (31) are respectively installed on the inner walls of the device box (10) on both sides opposite to each other; the suction end of the suction fan (30) is connected to one of the hollow tubes (38) via a rotating ventilation joint, and the output end of the motor (31) is fixedly connected to the other hollow tube (38); The cleaning mechanism comprises two first rotating shafts (28) penetrating the inner bottom wall of the device box (10), the lower ends of the two first rotating shafts (28) are fixedly connected to cleaning brushes (13), the upper ends of the two first rotating shafts (28) are fixedly connected to second bevel gears (37), a second rotating shaft (35) is horizontally arranged inside the device box (10), both ends of the second rotating shaft (35) are rotatably connected to the inner wall of the device box (10), two first bevel gears (36) are fixedly sleeved on the side wall of the second rotating shaft (35), the two first bevel gears (36) are respectively meshed with the two second bevel gears (37), a second sprocket (34) is fixedly sleeved on the second rotating shaft (35), a first sprocket (32) is fixedly sleeved on the side wall of the hollow tube (38) connected to the motor (31), and the first sprocket (32) and the second sprocket (34) are connected via a transmission chain (33); The side wall of the device box (10) is provided with a pull-out groove (25) connected to the inside of the dust box (29); the inside of the pull-out groove (25) is provided with a collection box (27) located below the filter screen cylinder (40); the inside of the collection box (27) is fixedly connected with a cleaning scraper (39) that fits under the filter screen cylinder (40); the side wall of the collection box (27) is fixedly connected with a handle (24); and magnetic plates (26) are fixedly embedded on the two opposite side walls of the pull-out groove (25); the collection box (27) is magnetically adsorbed to the magnetic plate (26).
5. The smart property platform duty robot according to claim 2 is characterized in that: A lifting slot (20) is provided at the upper end of the fuselage (1), the lifting slot (20) being close to the edge of the fuselage (1), a lifting baffle (3) being slidably inserted inside the lifting slot (20), and the upper end of the lifting baffle (3) being fixedly connected to the lower end of the machine head (2).
6. The smart property platform duty robot according to claim 3 is characterized in that: The cleaning mechanism comprises a cleaning pad (17) inserted into an insertion slot (16); an inner wall of the insertion slot (16) is provided with a clamping plate (18) for clamping the cleaning pad (17); a screw rod (19) is penetrated through a side wall of the moving rod (15) away from the insertion slot (16); the screw rod (19) is threadedly connected to the moving rod (15); and one end of the screw rod (19) located in the insertion slot (16) is rotatably connected to the side wall of the clamping plate (18).
7. The smart property platform duty robot according to claim 3 is characterized in that: A protective plate (6) is fixedly connected to the side wall of the moving rod (15), and the protective plate (6) is located outside the installation frame (5).
8. The smart property platform duty robot according to claim 4, characterized in that: The bottom of the device box (10) is fixedly connected with a collecting guide plate (11) corresponding to the opening position.
9. The smart property platform duty robot according to claim 1, characterized in that: The lower back side of the machine body (1) is provided with an openable and closable sealing door (22).
Citation Information
Patent Citations
Mopping and seeping integration cleaning robot
CN102940473A
Rolling brush cleaning device and cleaning robot
CN115281561A
Rolling brush structure and cleaning robot
CN212521665U
Student dormitory access control device
CN214306053U
Pavement crack detection device
CN220847020U