A machine for epidemic prevention, inspection, killing and sterilization with adjustable spraying width
By using a dual-axis electric hydraulic rod and rack and pinion linkage to adjust the spray width, and by using an adjusting screw to drive a sealing plug to block idle nozzles, the problem of the spray width of the disinfection robot being unable to be dynamically adjusted is solved, thus achieving flexible adaptation of the spray width and effective utilization of the disinfectant.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU MEDICAL UNIV
- Filing Date
- 2026-05-26
- Publication Date
- 2026-07-14
AI Technical Summary
Existing disinfection robots cannot dynamically adjust the spray width according to changes in the site space during the robot's movement, resulting in missed spraying in edge areas or excessive concentration of disinfectant.
The spray width is adjusted by using a dual-axis electric hydraulic rod and a rack and pinion linkage, and the spray width is adjusted in real time by using an adjusting screw to drive a sealing plug to block idle nozzles.
It enables flexible adaptation of spray width, avoids waste of pesticide and missed areas, and ensures effective disinfection coverage.
Smart Images

Figure CN224484562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of disinfection equipment technology, and in particular to a disinfection and inspection robot with adjustable spray width. Background Technology
[0002] Disinfection robots are used in public places mainly to replace manual labor in completing large-scale, high-frequency disinfection and sterilization tasks. These robots are usually equipped with modules such as atomizing nozzles, ultraviolet lamps or ozone generators, and can navigate autonomously, avoid obstacles intelligently, and carry out full-coverage spray disinfection or ultraviolet irradiation of the ground, air and object surfaces according to preset routes.
[0003] For example, the existing Chinese utility model patent with publication number CN213526604U: a disinfection robot, which includes a housing, a first ultrasonic sensor, an infrared sensor, a second ultrasonic sensor, a front spray assembly, tracks, track wheels, a second rear spray assembly, a first rear spray assembly, a communication antenna, a geared motor, a coupling, a drive shaft, a first battery, a disinfectant pump, a support, a control device, a second battery, a disinfectant tank, and a communication module. With the cooperation of the communication antenna, communication module, and control device, the disinfectant pump draws disinfectant from the disinfectant tank and delivers it to the front and rear spray assemblies. The robot uses two spray units to disinfect and sterilize the site. Although the front spray unit can change the angle of the front spray bar by rotating the connector, and the rear spray units can also adjust the direction of the spray bar by rotating the connector, these adjustments all need to be preset manually or manually adjusted when the machine is stopped. It cannot dynamically and continuously automatically correct the spray width according to changes in the on-site space such as corridor width, room size, or obstacle distribution during the robot's movement. Therefore, when the spatial dimensions of the working environment change, the robot still disinfects with a fixed or preset spray width, which can easily lead to missed spraying in edge areas or excessive concentration of disinfectant. Utility Model Content
[0004] The purpose of this invention is to provide a disinfection and sterilization robot with adjustable spray width. The spray width is adjusted by a dual-axis electric hydraulic rod and a rack and pinion linkage, while the adjusting screw drives a sealing plug to block idle nozzles, preventing excessive local spraying of medicine. This can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A disinfection and sterilization robot with adjustable spray width includes a patrol robot. The patrol robot has a liquid tank, an air pump, and a mounting column fixedly connected inside. A spraying module is mounted on the mounting column. The spraying module includes a dual-axis electro-hydraulic rod fixedly connected to the upper end of the mounting column. Mounting seats are fixedly connected to both sides of the dual-axis electro-hydraulic rod. A rotating shaft is rotatably connected to each mounting seat. A carrier plate is movably connected to one side of the rotating shaft. A mounting beam is fixedly connected to one side of the carrier plate. A motor is fixedly connected to the rear side of the mounting beam, and a liquid pump is fixedly connected to the rear side of the mounting beam near the motor. The liquid pipe is fixedly connected to an air pipe at its rear. A liquid pipe connector is fixedly connected to the lower surface of the liquid pipe near the motor. An air pipe connector is fixedly connected to the lower surface of the air pipe near the motor. The liquid pipe connector is connected to the output end of the integrated delivery pump of the medicine tank through an infusion pipe. The air pipe connector is connected to the gas output end of the air pump through a high-pressure air pipe. Multiple gas-liquid mixing atomizing nozzles are also fixedly connected to the lower surfaces of the liquid pipe and the air pipe. An adjusting screw is coaxially rotatably connected inside the liquid pipe. A sealing plug is threaded to the outside of the adjusting screw, and the sealing plug slides inside the liquid pipe through the adjusting screw.
[0007] As a further preferred embodiment of this utility model, the dual-axis electro-hydraulic rod is electrically connected to the main controller inside the inspection robot via a wire. Both output ends of the dual-axis electro-hydraulic rod are fixedly connected with racks. Thus, during operation, the dual-axis electro-hydraulic rod drives the racks on both sides to perform synchronous extension and retraction movements, thereby causing the two carrier plates to rotate synchronously.
[0008] As a further preferred embodiment of this utility model, the carrier plate has an L-shaped structure, and a gear is fixedly connected to the side of the carrier plate facing the dual-axis electric hydraulic rod. The gear is rotatably connected to the rotating shaft, and the gear meshes with the rack. When the rack performs horizontal extension and retraction, it drives the rotating shaft to rotate through meshing with the gear, thereby realizing the angle adjustment of the carrier plate and the mounting beam to control the spray width of the liquid medicine.
[0009] As a further preferred embodiment of this utility model, the motor is electrically connected to the main controller inside the inspection robot via a wire, and the output end of the motor is fixedly connected to a first connecting flange. The motor is used to provide power for the rotation of the adjusting screw.
[0010] As a further preferred embodiment of this utility model, two guide rails are symmetrically fixedly connected inside the liquid tube. The guide rails are used to restrict the rotation of the sealing plug, so that the sealing plug can move axially along the liquid tube under the drive of the adjusting screw. A sealing sleeve is fixedly connected to the end of the liquid tube facing the motor.
[0011] As a further preferred embodiment of this utility model, one end of the adjusting screw is fixedly connected to a guide rod, and the guide rod is rotatably fitted inside the sealing sleeve. The end of the guide rod away from the adjusting screw extends to the outside of the sealing sleeve and is fixedly connected to a second connecting flange. The second connecting flange and the first connecting flange are fixedly connected to each other. The motor drives the guide rod and the adjusting screw to rotate synchronously, thereby driving the sealing plug to move axially along the liquid pipe. When the angle of the mounting beam is reduced to decrease the spraying working area, the sealing plug can block the liquid inlet channel of the corresponding gas-liquid mixing atomizing nozzle.
[0012] As a further preferred embodiment of this utility model, two sealing guide grooves are formed on the outer circumference of the sealing plug, and the sealing guide grooves are slidably fitted on the guide rails at corresponding positions.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] In this invention, the dual-axis electric hydraulic rod can drive the rack and gear to move synchronously, thereby adjusting the angle between the carrier plate and the mounting beam in real time and flexibly adapting to the spraying width in different locations. The adjusting screw, in conjunction with the guide rail, drives the sealing plug to move axially, which can block the liquid inlet channel of the idle gas-liquid mixing atomizing nozzle, avoiding waste of liquid and missed spraying in certain areas.
[0015] In this invention, the liquid pipe and air pipe are designed together with the gas-liquid mixing atomizing nozzle to reduce the particle size of the atomized medicine, allowing the medicine to remain suspended in the air for a long time. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the spraying module structure of this utility model;
[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0019] Figure 4 This is a schematic diagram of the carrier plate structure of this utility model;
[0020] Figure 5 for Figure 2 Enlarged view of point B in the middle;
[0021] Figure 6 This is a cross-sectional view of the liquid tube of this utility model;
[0022] Figure 7 This is a schematic diagram of the sealing plug structure of this utility model.
[0023] In the diagram: 1. Patrol robot; 2. Liquid tank; 3. Air pump; 4. Mounting column; 5. Spraying module; 6. Dual-axis electro-hydraulic rod; 7. Mounting base; 8. Rotating shaft; 9. Carrier plate; 10. Mounting beam; 11. Motor; 12. Liquid pipe; 13. Air pipe; 14. Liquid pipe connector; 15. Air pipe connector; 16. Gas-liquid mixing atomizing nozzle; 17. Adjusting screw; 18. Sealing plug; 19. Gear rack; 20. Gear; 21. Sealing guide groove; 22. First connecting flange; 23. Sealing sleeve; 24. Smooth rod; 25. Second connecting flange; 26. Guide rail. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] like Figures 1-7 As shown, this utility model provides an adjustable spray width epidemic prevention and disinfection robot, including a patrol robot 1. Inside the patrol robot 1, a liquid tank 2, an air pump 3, and a mounting column 4 are fixedly connected. A spraying module 5 is mounted on the mounting column 4. The spraying module 5 includes a dual-axis electric hydraulic rod 6 fixedly connected to the upper end of the mounting column 4. Mounting seats 7 are fixedly connected to both sides of the dual-axis electric hydraulic rod 6. A rotating shaft 8 is rotatably connected inside the mounting seat 7. A carrier plate 9 is movably connected to one side of the rotating shaft 8. A mounting beam 10 is fixedly connected to one side of the carrier plate 9. A motor 11 is fixedly connected to the rear side of the mounting beam 10. A liquid pipe 1 is fixedly connected to the rear side of the mounting beam 10 near the motor 11. 2. A gas pipe 13 is fixedly connected to the rear side of the liquid pipe 12. A liquid pipe connector 14 is fixedly connected to the lower surface of the liquid pipe 12 near the motor 11. A gas pipe connector 15 is fixedly connected to the lower surface of the gas pipe 13 near the motor 11. The liquid pipe connector 14 is connected to the output end of the integrated delivery pump of the medicine tank 2 through the infusion pipe. The gas pipe connector 15 is connected to the gas output end of the air pump 3 through the high-pressure air pipe. Multiple gas-liquid mixing atomizing nozzles 16 are also fixedly connected to the lower surfaces of the liquid pipe 12 and the gas pipe 13. An adjusting screw 17 is coaxially rotatably connected inside the liquid pipe 12. A sealing plug 18 is threadedly connected to the outside of the adjusting screw 17, and the sealing plug 18 is slidably fitted inside the liquid pipe 12 through the adjusting screw 17.
[0026] like Figures 2-4As shown, the dual-axis electro-hydraulic rod 6 is electrically connected to the main controller inside the patrol robot 1 via wires. Both output ends of the dual-axis electro-hydraulic rod 6 are fixedly connected to racks 19. Therefore, during operation, the dual-axis electro-hydraulic rod 6 drives the racks 19 on both sides to synchronously extend and retract, thereby causing the two carrier plates 9 to synchronously rotate. The carrier plates 9 have an L-shaped structure, and a gear 20 is fixedly connected to the side of the carrier plate 9 facing the dual-axis electro-hydraulic rod 6. The gear 20 is rotatably connected to the rotating shaft 8 and meshes with the racks 19. When the racks 19 perform horizontal extension and retraction, the meshing transmission with the gear 20 drives the rotating shaft 8 to rotate, thereby adjusting the angle of the carrier plates 9 and the mounting beam 10 to control the spray width of the liquid.
[0027] like Figure 2 , Figures 5-7 As shown, motor 11 is electrically connected to the main controller inside the patrol robot 1 via wires. A first connecting flange 22 is fixedly connected to the output end of motor 11. Motor 11 provides power for the rotation of adjusting screw 17. Two guide rails 26 are symmetrically fixedly connected inside the liquid pipe 12. The guide rails 26 restrict the rotation of the sealing plug 18, allowing the sealing plug 18 to move axially along the liquid pipe 12 under the drive of adjusting screw 17. A sealing sleeve 23 is fixedly connected to the end of the liquid pipe 12 facing motor 11. A smooth rod 24 is fixedly connected to one end of adjusting screw 17, and the smooth rod 24 rotatably engages within the sealing sleeve 23. 4. One end of the adjusting screw 17 extends to the outside of the sealing sleeve 23 and is fixedly connected to the second connecting flange 25. The second connecting flange 25 is fixedly connected to the first connecting flange 22. The motor 11 drives the light rod 24 and the adjusting screw 17 to rotate synchronously, thereby driving the sealing plug 18 to move axially along the liquid pipe 12. When the angle of the mounting beam 10 is reduced to decrease the spraying working surface, the sealing plug 18 can block the liquid inlet channel of the corresponding gas-liquid mixing atomizing nozzle 16. Two sealing guide grooves 21 are opened circumferentially on the outside of the sealing plug 18. The sealing guide grooves 21 are slidably fitted on the guide rails 26 at the corresponding positions.
[0028] It should be noted that this utility model is a disinfection and inspection robot with adjustable spray width. First, after the inspection robot 1 is started, its integrated control system begins to move autonomously according to the preset path or remote command. The disinfectant in the liquid tank 2 is drawn out by the integrated delivery pump and delivered to the liquid pipe connector 14 through the delivery pipe, and then enters the liquid pipe 12. At the same time, the air pump 3 starts to work, and the high-pressure compressed air generated is delivered to the air pipe connector 15 through the high-pressure air pipe, and then enters the air pipe 13. The disinfectant in the liquid pipe 12 and the compressed air in the air pipe 13 meet and mix fully at multiple gas-liquid mixing atomizing nozzles 16. The high-speed airflow is used to shear and break the liquid, thereby forming ultra-fine atomized particles with extremely small diameter. These atomized particles are then sprayed evenly from the gas-liquid mixing atomizing nozzles 16 and can remain suspended in the air for a long time to achieve efficient disinfection of the space environment.
[0029] To adapt to disinfection areas of varying widths and shapes, the main controller inside the patrol robot 1 works in conjunction with its onboard environmental sensors to acquire distance and contour data of surrounding obstacles. After receiving this data, the main controller uses algorithms to fit and calculate the positions of obstacles on both sides, determining the effective width of the current passageway or room. It then controls the dual-axis electro-hydraulic rod 6 to extend and retract. The dual-axis electro-hydraulic rod 6 drives the racks 19 on both sides to simultaneously extend or retract horizontally. The racks 19 drive the meshing gears 20 to rotate, causing the rotating shaft 8 and the mounting beam 10 fixedly connected to the carrier plate 9 to deflect around the rotating shaft 8. This results in a real-time change in the angle between the entire carrier plate 9 and the mounting beam 10, flexibly adjusting the spray direction and coverage width of the gas-liquid mixing atomizing nozzle 16 located below, ensuring that the disinfectant can cover the area. When the angle of the mounting beam 10 is reduced, resulting in a narrower spraying area, or when a wider spraying area is not required, the motor 11 located behind the mounting beam 10 will receive a command from the main controller and begin to rotate. The first connecting flange 22 at the output end of the motor 11 drives the second connecting flange 25, which is fixedly connected to it, to rotate, thereby causing the polished rod 24 and the adjusting screw 17 connected to it to rotate synchronously inside the liquid pipe 12. Since the sealing plug 18 restricts the rotation through the sealing guide groove 21 and the guide rail 26, the sealing plug 18 moves linearly along the axial direction of the liquid pipe 12 under the thread drive of the adjusting screw 17. After the sealing plug 18 moves to the corresponding position, it will block the liquid inlet channel of those gas-liquid mixing atomizing nozzles 16 that are no longer participating in the spraying operation from the inside, thereby preventing the disinfectant from continuing to flow out from the idle nozzles, which saves the liquid and prevents the problem of excessive spraying in local areas.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A disinfection and sterilization robot with adjustable spray width, characterized in that: The system includes a patrol robot (1), which is equipped with a liquid tank (2), an air pump (3) and a mounting column (4) that are fixedly connected inside the patrol robot (1). The mounting column (4) is equipped with a spraying module (5). The spraying module (5) includes a dual-axis electric hydraulic rod (6) fixedly connected to the upper end of the mounting column (4). Mounting seats (7) are fixedly connected to both sides of the dual-axis electric hydraulic rod (6). A rotating shaft (8) is rotatably connected inside the mounting seat (7). A carrier plate (9) is movably connected to one side of the rotating shaft (8). A mounting beam (10) is fixedly connected to one side of the carrier plate (9). A motor (11) is fixedly connected to the rear side of the mounting beam (10). A liquid pipe (12) is fixedly connected to the rear side of the mounting beam (10) near the motor (11). An air pipe (13) is fixedly connected to the rear side of the liquid pipe (12). Multiple gas-liquid mixing atomizing nozzles (16) are also fixedly connected to the lower surfaces of the liquid pipe (12) and the air pipe (13). The liquid tube (12) is coaxially rotatably connected to an adjusting screw (17), and a sealing plug (18) is threadedly connected to the outside of the adjusting screw (17), and the sealing plug (18) is slidably fitted inside the liquid tube (12) through the adjusting screw (17).
2. The epidemic prevention and disinfection robot with adjustable spray width according to claim 1, characterized in that: The liquid pipe (12) is fixedly connected to the lower surface of the motor (11) with a liquid pipe connector (14), and the air pipe (13) is fixedly connected to the lower surface of the motor (11) with an air pipe connector (15). The liquid pipe connector (14) is connected to the output end of the integrated delivery pump of the medicine tank (2) through the infusion pipe, and the air pipe connector (15) is connected to the gas output end of the air pump (3) through the high-pressure air pipe.
3. The epidemic prevention and disinfection robot with adjustable spray width according to claim 1, characterized in that: The dual-axis electric hydraulic rod (6) is electrically connected to the main controller inside the inspection robot (1) via a wire, and the output ends on both sides of the dual-axis electric hydraulic rod (6) are fixedly connected with racks (19).
4. The epidemic prevention and disinfection robot with adjustable spray width according to claim 3, characterized in that: The carrier plate (9) has an L-shaped structure. A gear (20) is fixedly connected to the side of the carrier plate (9) facing the dual-axis electric hydraulic rod (6). The gear (20) is rotatably connected to the rotating shaft (8). The gear (20) meshes with the rack (19).
5. The epidemic prevention and disinfection robot with adjustable spray width according to claim 1, characterized in that: The motor (11) is electrically connected to the main controller inside the inspection robot (1) via a wire, and the output end of the motor (11) is fixedly connected to the first connecting flange (22).
6. The epidemic prevention and disinfection robot with adjustable spray width according to claim 5, characterized in that: Two guide rails (26) are symmetrically fixed inside the liquid pipe (12), and a sealing sleeve (23) is fixedly connected to one end of the liquid pipe (12) facing the motor (11).
7. The epidemic prevention and disinfection robot with adjustable spray width according to claim 6, characterized in that: One end of the adjusting screw (17) is fixedly connected to a light rod (24), and the light rod (24) is rotatably fitted inside the sealing sleeve (23). The end of the light rod (24) away from the adjusting screw (17) extends to the outside of the sealing sleeve (23) and is fixedly connected to a second connecting flange (25). The second connecting flange (25) and the first connecting flange (22) are fixedly connected to each other.
8. The epidemic prevention and disinfection robot with adjustable spray width according to claim 6, characterized in that: The sealing plug (18) has two sealing guide grooves (21) circumferentially formed on its outer side, and the sealing guide grooves (21) slide on the guide rails (26) at the corresponding positions.