A food delivery robot that combines indoor cleaning and air purification

By integrating a motor-driven gear-driven brush, exhaust fan, and filter into the delivery robot, the problem of the robot's inability to clean and purify the air has been solved, enabling multi-functional processing and improving ease of use and efficiency.

CN224940045UActive Publication Date: 2026-11-06GUANGZHOU ZHIJIA BAOBAO NETWORK TECH SERVICE CO LTD +3
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Patent Information

Application Number
CN202522490618.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-24
Publication Date
2026-11-06
Estimated Expiration
2035-11-24

AI Technical Summary

Technical Problem

Existing food delivery robots cannot perform indoor cleaning and air purification, which increases the workload of cleaning staff and has limited functionality when there are no food delivery orders.

Method used

Design a delivery robot that combines indoor cleaning and air purification functions, integrating a motor-driven gear-driven brush, exhaust fan, filter components, and ultraviolet lamp to achieve floor cleaning, air purification, and sterilization.

Benefits of technology

This technology enables delivery robots to automatically perform indoor cleaning and air purification while delivering food, improving ease of use and flexibility, and reducing the workload of cleaning staff.

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Abstract

This utility model relates to the field of food delivery robot technology, and discloses a food delivery robot that combines indoor cleaning and air purification. It includes a base, a first motor fixedly connected to the bottom of one side of the inner wall of the base, a drive gear fixedly connected to the output end of the first motor, a fixed ring slidably connected through the bottom of the base, a toothed ring fixedly connected to the outer ring of the fixed ring, evenly distributed brushes fixedly connected to the bottom of the fixed ring, evenly distributed suction ports opened at the bottom of the fixed ring, and limit rings provided at the top of each fixed ring. A suction pipe is rotatably connected through the top of the middle limit ring. In this utility model, during cleaning, the motor and gear transmission drive the brushes to rotate and wipe the floor, while simultaneously using a fan and suction structure to quickly and thoroughly clean impurities from the floor. The snap-on design of the storage box facilitates easy removal and cleaning of internal impurities, making operation simple.
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Description

Technical Field

[0001] This utility model relates to the field of food delivery robot technology, specifically a food delivery robot that combines indoor cleaning and air purification. Background Technology

[0002] A food delivery robot is an intelligent service device that integrates technologies such as artificial intelligence, the Internet of Things, and autonomous driving. It is mainly used to solve the efficiency and cost problems of the "last mile" or "last hundred meters" in the food delivery process. It typically has core functions such as autonomous path planning, obstacle recognition and avoidance, accurate order information matching, real-time positioning and navigation, and delivers food safely from the pick-up point to the user's designated location according to a preset route or dynamically optimized route.

[0003] In existing technologies, indoor food delivery robots often employ an integrated approach of "cloud scheduling + multimodal perception + scene interaction," widely used in enclosed environments such as office buildings and hotels. Before delivery, the cloud scheduling system receives the order, and the rider or merchant places the food into the robot's insulated compartment and scans the code to record information. During delivery, the robot uses a dual AI perception system composed of multi-line LiDAR and a 3D depth camera to identify pedestrians and obstacles in real time, flexibly avoiding them while communicating with the elevator system via an IoT module to autonomously complete operations such as calling the elevator, judging the space inside the elevator car, and accurately stopping at the floor. Upon arriving at the user's designated location, the robot notifies the user to pick up the food via voice prompts, light signals, or a service number push notification. The user can unlock the corresponding compartment by entering a verification code or scanning a code. After picking up the food, the robot automatically returns to standby, achieving a closed loop of "food pickup - navigation - interaction - return" without human intervention.

[0004] In this method, the robot can only deliver food and cannot clean or purify the air in the room. In hotels, customers need to call cleaning staff for cleaning and air purification, which increases the workload of the cleaning staff. In addition, the food delivery robot can only standby when it is not delivering food and cannot perform multi-functional processing. To address the above problems, a food delivery robot that can perform both indoor cleaning and air purification is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a food delivery robot that combines indoor cleaning and air purification, solving the problem that the prior art could not achieve multiple functions.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a takeaway robot that combines indoor cleaning and air purification, comprising a base, a first motor fixedly connected to the bottom of one side of the inner wall of the base, a drive gear fixedly connected to the output end of the first motor, a fixed ring slidably connected through the bottom of the base, a toothed ring fixedly connected to the outer ring of the fixed ring, a uniformly distributed brush fixedly connected to the bottom of the fixed ring, a uniformly distributed suction port opened at the bottom of the fixed ring, a limit ring provided at the top of each fixed ring, a suction pipe rotatably connected through the top of the middle limit ring, a first electric push rod fixedly connected to both sides of the top of the base, and the output end of the first electric push rod fixedly connected to the two side rotating rings, a storage box slidably connected through the other side of the base, springs fixedly connected to both ends of the inner wall of the base, a buckle fixedly connected to one end of each spring, and the outer ring of the buckle slidably connected through the storage box, and an exhaust fan fixedly connected to the top of one side of the inner wall of the base, and the input end of the exhaust fan slidably connected through the storage box.

[0007] By adopting the above technical solution, a filter screen is installed at the input end of the exhaust fan to prevent dust from entering the exhaust fan and causing damage. The drive of the first electric push rod can cause the fixed ring to move downward. When the fixed ring moves downward, the gear ring and the drive gear mesh with each other.

[0008] As a further description of the above technical solution: a first filter plate is connected through and fixedly connected to one side of the base, a shell is provided on the top of the base, a placement rack is fixedly connected to the top of the shell, and a second motor is fixedly connected to the middle of the bottom of the inner wall of the placement rack.

[0009] By adopting the above technical solution, the first filter plate can prevent dust from entering the inside of the exhaust fan.

[0010] As a further description of the above technical solution: a bevel gear set is fixedly connected to the output end of the second motor, and a lead screw is fixedly connected to both ends of the bevel gear set, with a sealing end cap threaded onto the outer ring of the lead screw.

[0011] By adopting the above technical solution, the sealing end cap and the placement rack are sealed, and the bevel gear set contains three bevel gears, which are meshed with each other.

[0012] As a further description of the above technical solution: the front end of the placement rack is slidably connected to a frame, and a filter component is provided on the inner wall of the frame.

[0013] By adopting the above technical solution, the filter assembly contains multiple filter screens, such as primary filter screen, activated carbon filter screen, catalytic filter screen, antibacterial filter screen, etc., to purify the air.

[0014] As a further description of the above technical solution: both ends of the placement rack are fixedly connected to fixing blocks, the other side of the fixing blocks is provided with bolts, and the other side of the placement rack is connected to a negative pressure fan through and fixedly connected.

[0015] By adopting the above technical solution, the negative pressure fan can guide the airflow, which facilitates air purification.

[0016] As a further description of the above technical solution: a second filter plate is connected through and fixedly connected to the top of the other side of the placement rack; a control panel is connected through and fixedly connected to the top of one side of the placement rack; a buzzer is provided on one side of the placement rack; and an infrared monitor is fixedly connected to one side of the inner wall of the placement rack.

[0017] By adopting the above technical solution, the control panel, which is based on existing technology, can control the operation of the food delivery robot, and the infrared detector can detect the presence of objects placed on the tray.

[0018] As a further description of the above technical solution: auxiliary wheels are provided on both sides of the bottom of the outer shell, and a second electric push rod is fixedly connected to the top of the inner wall of the outer shell, and a pressure block is fixedly connected to the output end of the second electric push rod.

[0019] By adopting the above technical solution, the auxiliary wheel can give the outer shell a certain height, making it easier for the base to enter the interior of the outer shell. The drive of the second electric push rod can move the pressure block downward, thereby fixing the base.

[0020] As a further description of the above technical solution: both ends of the bottom of the inner wall of the base are provided with movable components, and ultraviolet lamps are connected through and fixedly connected to both the top and bottom ends of the base.

[0021] By adopting the above technical solution, the mobile component is not an innovative technology of this non-patent, but a technology already in use, which can drive the food delivery robot to move.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a delivery robot that combines indoor cleaning and air purification. Firstly, by integrating delivery, cleaning, and air purification functions into one unit, it avoids the hassle of using multiple separate devices and can more efficiently meet various indoor needs. During cleaning, a motor and gear transmission drive a rotating brush to wipe the floor, while a fan and vacuum system work together to quickly and thoroughly remove impurities. The snap-on design of the storage box makes it easy to remove and clean internal debris, simplifying operation. Through motor drive, bevel gear transmission, and a filter assembly and negative pressure fan, it can efficiently filter indoor air and improve indoor air quality. It can flexibly switch between cleaning and air purification modes when there are no delivery tasks, based on instructions from the controller in the room, enhancing convenience and flexibility. Finally, through the combined action of a UV lamp and a separately movable base, it can sterilize the entire room. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a sectional perspective view of the base of this utility model; Figure 3 This is a schematic diagram of the dust suction port of this utility model; Figure 4 This is a schematic diagram of the spring of this utility model; Figure 5 This is a sectional perspective view of the placement rack of this utility model; Figure 6 This is a schematic diagram of the mobile component of this utility model; Figure 7 This is a flowchart illustrating the workflow of the food delivery robot of this utility model. Figure 8 This is an exploded view of the outer shell of the food delivery robot of this utility model.

[0024] Legend: 1. Base; 2. First motor; 3. Drive gear; 4. Fixing ring; 5. Gear ring; 6. Brush; 7. Suction port; 8. Limiting ring; 9. First electric push rod; 10. Rotary ring; 11. Suction pipe; 12. Storage box; 13. Spring; 14. Buckle; 15. Exhaust fan; 16. First filter plate; 17. Placement rack; 18. Second motor; 19. Bevel gear set; 20. Lead screw; 21. Sealing end cap; 22. Frame; 23. Filter assembly; 24. Fixing block; 25. Bolt; 26. Negative pressure fan; 27. Second filter plate; 28. Infrared monitor; 29. ​​Buzzer; 30. Control panel; 31. Moving assembly; 32. Housing; 33. Auxiliary wheel; 34. Pressure block; 35. Ultraviolet lamp; 36. Second electric push rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.

[0027] Reference Figure 1 and Figure 6 and Figure 7 This utility model discloses a delivery robot that combines indoor cleaning and air purification. It includes a base 1, a second filter plate 27 that is fixedly connected to the top of one side of a placement rack 17, preventing impurities from entering the air purification guide cavity, a control panel 30 that is fixedly connected to the top of one side of the placement rack 17, facilitating the control of the robot's internal electrical components, and a buzzer 29 on one side of the placement rack 17. When someone maliciously takes the delivery, an infrared detector 28 detects this and transmits the information to the buzzer 29, triggering an alarm. Infrared detectors 28 are fixedly connected to one side of the inner wall of the placement rack 17. The outer shell... Auxiliary wheels 33 are provided on both sides of the bottom of the base 32. The auxiliary wheels 33 can provide auxiliary movement for the moving component 31 and limit the height of the outer shell 32, so that the base 1 can move independently at the outer shell 32. A second electric push rod 36 is fixedly connected to the top of the inner wall of the outer shell 32. A pressure block 34 is fixedly connected to the output end of the second electric push rod 36. The second electric push rod 36 can push the pressure block 34 downward to move it. The pressure block 34 can limit the base 1 and ensure that the movement of the base 1 drives the delivery robot to move synchronously. Moving components 31 are provided at both ends of the bottom of the inner wall of the base 1. Ultraviolet lamps 35 are connected through and fixedly connected to both the top and bottom ends of the base 1.

[0028] Reference Figure 2 - Figure 8A first motor 2 is fixedly connected to the bottom of one side of the inner wall of the base 1. A drive gear 3 is fixedly connected to the output end of the first motor 2. The drive of the first motor 2 can make the drive gear 3 rotate forward or backward. A fixed ring 4 is slidably connected through the bottom of the base 1. A gear ring 5 is fixedly connected to the outer ring of the fixed ring 4. The rotation of the gear ring 5 drives the fixed ring 4 to rotate synchronously. A uniformly distributed brush 6 is fixedly connected to the bottom of the fixed ring 4. The brush 6 can wipe the ground. A uniformly distributed suction port 7 is opened at the bottom of the fixed ring 4. The suction port 7 can vacuum up the impurities on the ground. Limiting rings 8 are set at the top of the fixed ring 4. The middle limiting ring 8 is fixedly connected to the fixed ring 4, and the two side limiting rings 8 are slidably connected through the fixed ring 4. The base 1 is secured by two limiting rings 8 on both sides to prevent the fixed ring 4 from rotating and causing the first electric push rod 9 to move. A suction pipe 11 is rotatably connected to the top of the middle limiting ring 8, preventing the suction pipe 11 from rotating. The first electric push rod 9 is fixedly connected to both sides of the top center of the base 1, and its output end is fixedly connected to the two rotating rings 10 on both sides. Driving the first electric push rod 9 allows the rotating rings 10 to move up and down. A storage box 12 is slidably connected to the other side of the base 1, allowing dust to be collected. Springs 13 are fixedly connected to both ends of the inner wall of the base 1. A buckle 14 is fixedly connected to one end of each spring 13, and the outer ring of the buckle 14 is slidably connected to the storage box 12. Pressure release 13 causes the latch 14 to pop out, limiting the position of the storage box 12. A fan 15 is fixedly connected to the top of one side of the inner wall of the base 1, and the input end of the fan 15 is slidably connected to the storage box 12. The fan 15 draws air out of the storage box 12, making the inside of the storage box 12 a negative pressure state. A first filter plate 16 is fixedly connected to one side of the base 1, which can prevent impurities from entering the base 1. A shell 32 is provided on the top of the base 1, and a placement rack 17 is fixedly connected to the top of the shell 32. A second motor 18 is fixedly connected to the middle of the bottom of the inner wall of the placement rack 17. A bevel gear set 19 is fixedly connected to the output end of the second motor 18. The drive of the second motor 18 causes the drive gear 3 to rotate. Both ends of the bevel gear set 19 are fixedly connected to lead screws 20. The driven gear drives the lead screws 20 to rotate, and the relative bevel gears rotate in opposite directions. The outer ring of the lead screw 20 is threaded with a sealing end cap 21. By opening the sealing end cap 21, the air in the room can be purified. The front end of the placement rack 17 is slidably connected to a frame 22. The inner wall of the frame 22 is provided with a filter assembly 23, which can purify the air. Both ends of the placement rack 17 are fixedly connected to fixing blocks 24. The other side of the fixing blocks 24 is provided with bolts 25. By rotating the bolts 25, the frame 22 can be easily disassembled. The other side of the placement rack 17 is fixedly connected to a negative pressure fan 26, which can guide the air.

[0029] Working principle: Through the cooperation of the moving component 31 and the second electric push rod 36, the base 1 can be moved out independently. During the movement of the delivery robot driven by the base 1, the bottom of the delivery robot can be sterilized by the ultraviolet lamp 35. When the base 1 slides out from the delivery robot and moves independently, the sterilization lamp on the lower surface is turned on. Then, when it moves to the bottom of the bed, the sterilization lamp on the upper surface is also turned on, sterilizing the entire space under the bed. The moving component 31 is moved by the control panel 30. When it is necessary to deliver the food, the food is scanned by scanning the QR code on the control panel 30 and placed in the placement rack 17. After placement, infrared detection is used to detect the food. The device performs real-time detection of takeout orders. When someone maliciously takes takeout, buzzer 29 sounds an alarm. When the device moves to a designated location, the customer scans the code and takes the takeout. When a customer needs cleaning via the controller in the room, the device receives instructions via control panel 30. If there is no takeout in the shelf 17, the device moves to the current room and drives the fixing ring 4 downward via the first electric push rod 9, causing the gear ring 5 to mesh with the drive gear 3. The first motor 2 causes the drive gear 3 to rotate. Through the meshing between the gear ring 5 and the gear, the fixing ring 4 drives the brush 6 to rotate, wiping the floor. During the rotation of the fixing ring 4, the exhaust fan 15 draws out... Air is drawn out of the storage box 12 to create a negative pressure state. Then, through the cooperation of the suction pipe 11 and the suction port 7, impurities on the ground are drawn into the storage box 12. When the storage box 12 is removed, pulling it causes the latch 14 to be pulled out of the groove due to significant force, thus cleaning the impurities inside the storage box 12. When the storage box 12 is pushed back into the base 1, the spring 13 releases pressure, causing the latch 14 to limit the storage box 12. After cleaning, the first motor 2 is turned off, and the first electric push rod 9 drives the fixing ring 4 to move upward, thus cleaning the room. Customers can then use the controller in the room to... When purifying the air in the room, the control panel 30 receives instructions. When there are no takeout orders in the rack 17, the takeout robot moves to the designated position. The second motor 18 drives the bevel gear set 19 to transmit power, causing the sealing end cover 21 to move inward along the lead screw 20. The negative pressure fan 26 is driven to allow air to enter from both ends of the bottom of the rack 17, then be filtered by the filter assembly 23, and finally be discharged through the guide of the negative pressure fan 26, thereby purifying the air. When replacing the filter assembly 23, the frame 22 can be disassembled by rotating the bolt 25, so that the filter screen inside the filter assembly 23 can be replaced.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A food delivery robot that combines indoor cleaning and air purification, comprising a base (1), characterized in that: A first motor (2) is fixedly connected to the bottom of one side of the inner wall of the base (1). A drive gear (3) is fixedly connected to the output end of the first motor (2). A fixed ring (4) is slidably connected through the bottom of the base (1). A gear ring (5) is fixedly connected to the outer ring of the fixed ring (4). A uniformly distributed brush (6) is fixedly connected to the bottom of the fixed ring (4). A uniformly distributed suction port (7) is opened at the bottom of the fixed ring (4). A limit ring (8) is provided at the top of each fixed ring (4). A suction pipe (11) is rotatably connected through the top of the middle limit ring (8). The top center of the base (1) is fixedly connected to two sides of the first electric push rod (9), and the output end of the first electric push rod (9) is fixedly connected to the two side rotating rings (10). The other side of the base (1) is connected to a storage box (12) through and slidingly. The inner wall of the base (1) is fixedly connected to two ends of the spring (1), and one end of the spring (13) is fixedly connected to a buckle (14). The outer ring of the buckle (14) is connected to the storage box (12) through and slidingly. The top of one side of the inner wall of the base (1) is fixedly connected to an exhaust fan (15), and the input end of the exhaust fan (15) is connected to the storage box (12) through and slidingly.

2. The delivery robot that combines indoor cleaning and air purification according to claim 1, characterized in that: The base (1) has a first filter plate (16) that is fixedly connected through one side. The base (1) has a shell (32) on top. The shell (32) has a placement rack (17) fixedly connected to the top. The placement rack (17) has a second motor (18) fixedly connected to the bottom middle of the inner wall of the bottom.

3. A food delivery robot that combines indoor cleaning and air purification according to claim 2, characterized in that: The output end of the second motor (18) is fixedly connected to a bevel gear set (19), and both ends of the bevel gear set (19) are fixedly connected to a lead screw (20). The outer ring of the lead screw (20) is threaded with a sealing end cap (21).

4. A food delivery robot that combines indoor cleaning and air purification according to claim 2, characterized in that: The front end of the placement rack (17) is connected to a frame (22) that extends through and slides, and a filter assembly (23) is provided on the inner wall of the frame (22).

5. A food delivery robot that combines indoor cleaning and air purification according to claim 2, characterized in that: The placement rack (17) is fixedly connected to two ends of a fixing block (24), and a bolt (25) is provided on the other side of the fixing block (24). A negative pressure fan (26) is also fixedly connected through the other side of the placement rack (17).

6. A food delivery robot that combines indoor cleaning and air purification according to claim 2, characterized in that: A second filter plate (27) is connected through and fixedly connected to the top of the other side of the placement rack (17), a control panel (30) is connected through and fixedly connected to the top of one side of the placement rack (17), a buzzer (29) is provided on one side of the placement rack (17), and an infrared monitor (28) is fixedly connected to one side of the inner wall of the placement rack (17).

7. A food delivery robot that combines indoor cleaning and air purification according to claim 2, characterized in that: The bottom sides of the outer shell (32) are provided with auxiliary wheels (33), and the top of the inner wall of the outer shell (32) is fixedly connected with a second electric push rod (36), and the output end of the second electric push rod (36) is fixedly connected with a pressure block (34).

8. A food delivery robot that combines indoor cleaning and air purification according to claim 1, characterized in that: The base (1) has movable components (31) at both ends of the bottom of its inner wall, and ultraviolet lamps (35) are connected through and fixed to both the top and bottom ends of the base (1).