Ultraviolet elevator button panel sterilization and disinfection device

Abstract

This utility model relates to the technical field of elevator auxiliary equipment, and discloses an ultraviolet (UV) sterilization and disinfection device for elevator button panels, including a UV sterilization component, a support component, a sensor component, and a controller. The support component includes a base, a first rotating element, and a second rotating element. The second rotating element is connected to and drives the UV sterilization component to rotate, and the first rotating element is connected to and drives the second rotating element to rotate. The first rotating element includes a first stepper motor, and the second rotating element includes a second stepper motor. The first stepper motor, the second stepper motor, the UV sterilization component, and the sensor component are all electrically connected to the controller. This sterilization and disinfection device, by driving the UV sterilization component to rotate through the support component, can achieve comprehensive sterilization and disinfection of the elevator button panel from different angles. By configuring multiple sensors, it can effectively avoid the impact of the UV emitted by the UV sterilization component on people entering and exiting the elevator, ensuring that the disinfection work is automatically carried out at the appropriate time.

Description

Technical Field

[0001] This utility model relates to the technical field of elevator supporting equipment, specifically an ultraviolet elevator button panel sterilization and disinfection device. Background Technology

[0002] In modern life, elevators are a widely used form of vertical transportation, making the hygiene of their interior environment crucial. Elevator button panels, in particular, are frequently touched by passengers and can easily become a medium for the spread of bacteria, viruses, and other pathogens.

[0003] Traditional methods of disinfecting elevator button panels mainly rely on regular manual cleaning and disinfection. This method not only consumes a lot of manpower and time, but also uses chemical disinfectants sprayed or wiped, which may corrode the button panels, shortening their lifespan. Furthermore, residual chemicals may irritate passengers' skin, posing certain safety hazards. In addition, while some ultraviolet (UV) disinfection equipment has emerged and is used in elevators, its functionality is relatively limited and cannot flexibly adapt to the complex usage scenarios of elevators.

[0004] Therefore, it is particularly necessary to design an elevator button panel sterilization device that can effectively kill pathogens in elevators, has intelligent safety control, and will not affect people entering and exiting the elevator. Utility Model Content

[0005] To overcome the problems existing in related technologies, this utility model provides an ultraviolet elevator button panel sterilization and disinfection device, which is equipped with multiple detection mechanisms and can automatically turn on the ultraviolet sterilization component when the elevator is unoccupied, so as to achieve multi-angle and all-round sterilization and disinfection of the elevator button panel.

[0006] The technical solution adopted by this utility model is: an ultraviolet elevator button panel sterilization and disinfection device, including an ultraviolet sterilization component, a bearing component that supports and drives the ultraviolet sterilization component to rotate, a sensor component, and a controller;

[0007] The supporting component includes a base, a first rotating element and a second rotating element. The second rotating element is connected to the ultraviolet sterilization component, supports the ultraviolet sterilization component and drives the ultraviolet sterilization component to rotate. The first rotating element is connected to the second rotating element, supports the second rotating element and drives the second rotating element to rotate. The first rotating element is disposed on the base.

[0008] The first rotating element includes a first stepper motor, and the second rotating element includes a second stepper motor. The first stepper motor, the second stepper motor, the ultraviolet sterilization component, and the sensor component are electrically connected to the controller.

[0009] Furthermore, the ultraviolet sterilization component includes a box body, a reflector cup, and an ultraviolet LED lamp assembly. One side of the box body has an opening, the reflector cup is located inside the box body, and the opening of the reflector cup coincides with the opening of the box body. The ultraviolet LED lamp assembly is located inside the reflector cup, and a supporting component connection part is provided on the side of the box body opposite to the opening.

[0010] Furthermore, the base is provided with a first rotating connection part, which is a hollow columnar structure. The first stepper motor is located inside the first rotating connection part, and the output shaft of the first stepper motor protrudes from the first rotating connection part.

[0011] Furthermore, the second rotating element also includes a second rotating connection portion, one end of which is rotatably connected to the output shaft of the first stepper motor, and the other end face is provided with the second stepper motor, the output shaft of the second stepper motor being rotatably connected to the bearing assembly connection portion.

[0012] Furthermore, the output shaft of the first stepper motor and the extended line of the output shaft of the second stepper motor form an angle. The first stepper motor is used to control the ultraviolet sterilization component to rotate horizontally relative to the base, and the second stepper motor is used to control the ultraviolet sterilization component to rotate vertically relative to the base.

[0013] Furthermore, the rotation angle of the first stepper motor is 0-360 degrees, and / or the rotation angle of the second stepper motor is -60 degrees to 60 degrees.

[0014] Furthermore, the controller is a PLC controller, and the sensor assembly includes a human infrared sensor, a weighing sensor, and a door magnetic sensor. The human infrared sensor is located on the ultraviolet sterilization assembly, the weighing sensor is located at the bottom of the elevator car, and the door magnetic sensor is located at the elevator door. The human infrared sensor, the weighing sensor, and the door magnetic sensor are all electrically connected to the input port of the PLC controller.

[0015] Furthermore, the first stepper motor is electrically connected to the output port of the PLC controller via a first stepper motor driver, the second stepper motor is electrically connected to the output port of the PLC controller via a second stepper motor driver, and the ultraviolet LED lamp group is electrically connected to the output port of the PLC controller via a first solid-state relay.

[0016] Furthermore, the housing is equipped with a negative ion air purifier, which is electrically connected to the output port of the PLC controller via a second solid-state relay.

[0017] Furthermore, it also includes a host computer system, which is connected to the PLC controller via a communication module. The host computer system includes at least one of a computer, a server, and a mobile terminal.

[0018] The ultraviolet elevator button panel sterilization and disinfection device of this utility model has the following technical effects: (1) It is equipped with a sensor assembly, which includes a human infrared sensor, a weighing sensor and a door magnetic sensor. The sensor assembly works in coordination with the controller. When it detects that there is no one in the elevator (such as the human infrared sensor does not detect a human signal and the car load is within the empty range) and the elevator door is closed (the door magnetic sensor provides feedback signal), the controller automatically starts the disinfection process. The controller of the ultraviolet elevator button panel sterilization and disinfection device of this utility model can effectively avoid the influence of ultraviolet light emitted by the ultraviolet sterilization assembly on people entering and exiting the elevator by alternately verifying different signals from different sensors, and ensure that the disinfection work is carried out automatically at the appropriate time.

[0019] (2) The ultraviolet elevator button panel sterilization and disinfection device of this utility model achieves flexible rotation of the ultraviolet sterilization component in the horizontal and vertical directions through the coordinated cooperation of the first step motor and the second step motor in the bearing component. It breaks through the limitations of traditional fixed position disinfection, sterilizes and disinfects the elevator button panel from multiple angles and all directions, effectively eliminates disinfection dead corners, ensures that every part of the button panel can be fully irradiated by ultraviolet light, and greatly improves the disinfection effect.

[0020] Other features and advantages disclosed in this utility model will be described in detail in the following detailed description section. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of an ultraviolet elevator button panel sterilization and disinfection device according to an exemplary embodiment.

[0023] Figure 2 This is a cross-sectional view of an ultraviolet elevator button panel sterilization and disinfection device according to an exemplary embodiment.

[0024] Figure 3 This is a schematic diagram illustrating the disassembly of an ultraviolet elevator button panel sterilization and disinfection device according to an exemplary embodiment.

[0025] Figure 4 This is a schematic diagram of the circuit connection of an ultraviolet elevator button panel sterilization and disinfection device according to an exemplary embodiment.

[0026] Reference numerals: 10. Ultraviolet sterilization component; 11. Box body; 12. Reflector cup; 13. Ultraviolet LED lamp group; 131. First solid-state relay; 14. Bearing component connection part; 20. Bearing component; 21. Base; 211. First rotating connection part; 22. First rotating element; 221. First stepper motor; 222. First stepper motor driver; 23. Second rotating element; 231. Second stepper motor; 232. Second rotating connection part; 233. Second stepper motor driver; 30. Sensor assembly; 31. 24V DC power supply; 32. Human infrared sensor; 33. Door magnetic sensor; 34. Weighing sensor; 341. Analog input module; 40. PLC controller; 41. Communication module; 42. Host computer system; 50. Negative ion air purifier; 51. Second solid-state relay. Detailed Implementation

[0027] The specific embodiments disclosed herein will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this disclosure.

[0028] like Figure 1 , Figure 2 The image shows a disclosed exemplary embodiment of the present invention. The ultraviolet (UV) elevator button panel sterilization and disinfection device of the present invention includes a UV sterilization component 10, a support component 20 supporting and driving the UV sterilization component 10 to rotate, a sensor component 30, and a controller. The support component 20 includes a base 21, a first rotating element 22, and a second rotating element 23. The second rotating element 23 is connected to the UV sterilization component 10, supports the UV sterilization component 10, and drives the UV sterilization component 10 to rotate. The first rotating element 22 is connected to the second rotating element 23, supports the second rotating element 23, and drives the second rotating element 23 to rotate. The first rotating element 22 is disposed on the base 21. The first rotating element 22 includes a first stepper motor 221, and the second rotating element 23 includes a second stepper motor 231. The first stepper motor 221, the second stepper motor 231, the UV sterilization component 10, and the sensor component 30 are electrically connected to the controller.

[0029] This utility model's ultraviolet (UV) elevator button panel sterilization and disinfection device achieves flexible rotation of the UV sterilization component 10 in both horizontal and vertical directions through the coordinated operation of the first stepper motor 221 and the second stepper motor 231 in the supporting component 20. This overcomes the limitations of traditional fixed-position disinfection, enabling multi-angle and all-round sterilization of the elevator button panel. During rotation, the UV sterilization component 10 can continuously irradiate the button panel for an extended period. Compared to traditional fixed-position sterilization methods, rotational irradiation avoids incomplete sterilization caused by insufficient irradiation time or uneven irradiation intensity.

[0030] The design of the support component 20 allows the device to flexibly adapt to various types and sizes of elevator button panels. The base 21 serves as the fundamental support for the entire device and can be flexibly installed according to the spatial layout and installation requirements of the elevator car. The combination of the first rotating element 22 and the second rotating element 23 allows the UV sterilization component 10 to adapt to button panels of different shapes and arrangements by adjusting the motor rotation parameters. Simultaneously, it allows the entire device to be installed on the top or side wall of the elevator car. Through the rotation control of the first stepper motor 221 and the second stepper motor 231, the device achieves comprehensive sterilization and disinfection, demonstrating excellent environmental adaptability.

[0031] This utility model relates to an ultraviolet (UV) sterilization and disinfection device for elevator button panels. The device is equipped with a sensor assembly 30, which includes various types of sensors. The sensor assembly 30 is electrically connected to the controller for coordinated operation. When the controller detects that no one is inside the elevator (e.g., the human infrared sensor 32 does not detect a human signal and the car's load is within the empty range) and the elevator door is closed (feedback signal from the door magnetic sensor 33), the controller automatically activates the UV sterilization assembly 10 to disinfect the elevator button panel. By alternately verifying different signals from different sensors, the controller effectively avoids the impact of the UV radiation emitted by the UV sterilization assembly 10 on people entering and exiting the elevator, ensuring that disinfection is carried out automatically at the appropriate time.

[0032] For example, such as Figure 2 , Figure 3 As shown, the ultraviolet sterilization component 10 includes a housing 11, a reflector 12, and an ultraviolet LED lamp assembly 13. One side of the housing 11 has an opening. The reflector 12 is located inside the housing 11, with its opening coinciding with the opening of the housing 11. The ultraviolet LED lamp assembly 13 is located inside the reflector 12. A supporting component connecting portion 14 is located on the side of the housing 11 opposite to the opening. The base 21 has a first rotating connecting portion 211, which is a hollow cylindrical structure. A first stepper motor 221 is located inside the first rotating connecting portion 211, and the output shaft of the first stepper motor 221 protrudes from the first rotating connecting portion 211. The second rotating element 23 also includes a second rotating connecting portion 232. One end of the second rotating connecting portion 232 is rotatably connected to the output shaft of the first stepper motor 221, and the other end face is provided with a second stepper motor 231. The output shaft of the second stepper motor 231 is rotatably connected to the supporting component connecting portion 14.

[0033] The UV sterilization component 10 has an opening on one side of its housing 11, allowing ultraviolet rays to escape smoothly and directly illuminate the elevator button panel. The housing 11 acts as a protective shield, protecting the critical internal components from external environmental factors, thus extending the lifespan of the entire UV sterilization component 10 and ensuring its stable operation. A reflector 12 is installed inside the housing 11, with its opening coinciding with the opening of the housing 11. The reflector 12 efficiently reflects and focuses the light emitted by the UV LED lamp assembly. When the UV LED lamp assembly emits light, the light scatters in all directions; the reflector 12 collects this scattered light and directs it towards the opening of the housing 11, making the emitted ultraviolet rays more concentrated and intense, greatly enhancing the sterilization and disinfection effect on the elevator button panel.

[0034] The ultraviolet LED lamp assembly 13 uses a quartz UV lamp that emits 254nm ultraviolet light. Installed within the reflector cup 12, the ultraviolet LED lamp assembly 13 is the core light source of the entire sterilization device. The 254nm ultraviolet light can kill various microorganisms, including bacteria, viruses, and fungi, in a short time. It does not produce harmful substances during the disinfection process, is harmless to humans and the environment, and ultraviolet sterilization is a purely physical disinfection method with no secondary pollution.

[0035] A support component connecting part 14 is provided on the side of the box body 11 opposite to the opening. This is the key part that allows the ultraviolet sterilization component 10 to rotate flexibly. It connects the ultraviolet sterilization component 10 and the support component 20, so that the support component 20 can drive the ultraviolet sterilization component 10 to rotate precisely. The second stepper motor 231 transmits power to the ultraviolet sterilization component 10 through the support component connecting part 14, so that the ultraviolet sterilization component 10 can rotate from different angles and directions, and can be thoroughly sterilized and disinfected regardless of the shape or position of the elevator button panel.

[0036] The first rotating connecting part 211 on the base 21 adopts a hollow columnar structure design, which cleverly accommodates the first stepper motor 221, saving space and enhancing the compactness and aesthetics of the entire device. The output shaft of the first stepper motor 221 protrudes from the first rotating connecting part 211, facilitating its connection with the second rotating connecting part 232 and laying the foundation for the overall rotation function; when the output shaft of the first stepper motor 221 rotates, it drives the second rotating connecting part 232 and the ultraviolet sterilization component 10 connected to the second rotating connecting part 232 to rotate.

[0037] The second rotating connecting part 232 of the second rotating element 23 has one end rotatably connected to the output shaft of the first stepper motor 221, and the other end face is equipped with the second stepper motor 231. This connection method realizes the coordinated operation of two-stage rotation. The first stepper motor 221 drives the second rotating connecting part 232 to rotate through its output shaft, which in turn drives the second stepper motor 231 installed at its other end to rotate. The output shaft of the second stepper motor 231 is then rotatably connected to the bearing component connecting part 14, ultimately realizing omnidirectional rotation control of the ultraviolet sterilization component 10. This two-stage rotation design greatly increases the rotational flexibility of the ultraviolet sterilization component 10, making it adaptable to elevator button panels and elevator cars of various complex shapes and layouts.

[0038] For example, such as Figure 1 , Figure 2 As shown, in the exemplary embodiment disclosed in this utility model, the output shaft of the first stepper motor 221 and the extended lines of the output shaft of the second stepper motor 231 form an angle. The first stepper motor 221 is used to control the ultraviolet sterilization component 10 to rotate horizontally relative to the base 21, and the second stepper motor 231 is used to control the ultraviolet sterilization component 10 to rotate vertically relative to the base 21. The rotation angle of the first stepper motor 221 is 0-360 degrees, and / or the rotation angle of the second stepper motor 231 is -60 degrees to 60 degrees. Preferably, in the ultraviolet elevator button panel sterilization and disinfection device of this utility model, the rotation angle of the first stepper motor 221 is 0-360 degrees, and the rotation angle of the second stepper motor 231 is -60 degrees to 60 degrees.

[0039] The first stepper motor 221 is mainly responsible for controlling the horizontal rotation of the ultraviolet sterilization component 10 relative to the base 21, allowing the ultraviolet sterilization component 10 to rotate omnidirectionally in the horizontal direction relative to the base 21. The second stepper motor 231 is used to control the vertical rotation of the ultraviolet sterilization component 10 relative to the base 21, enabling the ultraviolet sterilization component 10 to be flexibly adjusted in the vertical direction. The output shafts of the first stepper motor 221 and the second stepper motor 231 are not on the same straight line, but form an angle. In this way, the two motors cooperate with each other through rotation control in different directions and angle ranges, enabling the irradiation angle of the ultraviolet sterilization component 10 to be adjusted in three dimensions, expanding the irradiation range of the ultraviolet sterilization component 10, and allowing the ultraviolet sterilization component 10 to adapt to various complex elevator button panel layouts. The first stepper motor 221 drives the ultraviolet sterilization component 10 to rotate continuously horizontally from 0 to 360° around the vertical axis, achieving horizontal circular scanning irradiation of the elevator button panel; the second stepper motor 231 drives the ultraviolet sterilization component 10 to tilt and swing from -60° to 60° around the horizontal axis, forming a three-dimensional irradiation trajectory with adjustable up and down tilt angles. The horizontal rotation adopts a full-circumference design to ensure no blind spots in repeated scanning, and the tilt angle is controlled by both mechanical limits and software to prevent mechanical interference caused by overtravel, such as collision with the elevator car wall.

[0040] For example, such as Figure 1 , Figure 2 As shown, in the exemplary embodiment disclosed in this utility model, the controller is a PLC controller 40, and the sensor assembly 30 includes a human infrared sensor 32, a weighing sensor 34, and a door magnetic sensor 33. The human infrared sensor 32 is located on the ultraviolet sterilization assembly 10, the weighing sensor 34 is located at the bottom of the elevator car, and the door magnetic sensor 33 is located at the elevator door. The human infrared sensor 32, the weighing sensor 34, and the door magnetic sensor 33 are electrically connected to the input port of the PLC controller 40.

[0041] Specifically, in the exemplary embodiment disclosed in this utility model, the PLC controller 40 is a Siemens S7-1200, specifically model 6ED1215-1FB00-0BA7, which has 4 digital inputs and 8 digital outputs. The selected human infrared sensor 32 outputs digital signals and has three terminals: VCC, GND, and OUT. The load cell 34 outputs analog signals, which need to be converted into digital signals by the analog input module 341 before being connected to the PLC controller. The load cell 34 has four terminals: EXC+, EXC-, SIG+, and SIG-. The door magnetic sensor 33 has three terminals: power, signal, and common. The selected power supply is a 24V DC power supply 31. Multiple lines are led from the positive terminal of the power supply and connected to the VCC terminal of the human infrared sensor 32, the power supply terminal of the door magnetic sensor 33, the EXC+ terminal of the load cell transmitter 34, and the 24V positive power input terminal of the PLC controller. Similarly, multiple lines are led from the negative terminal of the power supply and connected to the GND terminal of the human infrared sensor 32, the common terminal of the door magnetic sensor 33, the EXC- terminal of the load cell transmitter 34, and the 24V negative power input terminal of the PLC controller. The OUT terminal of the human infrared sensor 32 is connected to the input port X0 of the PLC controller, and the signal terminal of the door magnetic sensor 33 is connected to the input port X1 of the PLC controller. The SIG+ and SIG- terminals of the load cell 34 are connected to the positive and negative signal input terminals of the analog input module 341, respectively. The analog input module 341 is connected to the corresponding communication interface of the PLC controller via a communication line (such as RS485).

[0042] For example, such as Figure 1 , Figure 2 As shown in the exemplary embodiment disclosed in this utility model, the first stepper motor 221 is electrically connected to the output port of the PLC controller 40 through the first stepper motor driver 222, the second stepper motor 231 is electrically connected to the output port of the PLC controller 40 through the second stepper motor driver 233, and the ultraviolet LED lamp group 13 is electrically connected to the output port of the PLC controller 40 through the first solid-state relay 131. The housing 11 is equipped with a negative ion air purifier 50, which is electrically connected to the output port of the PLC controller 40 through the second solid-state relay 51.

[0043] Specifically, in the exemplary embodiments disclosed in this utility model, both the first stepper motor driver 222 and the second stepper motor driver 233 include a PUL+ port, a DIR+ port, an EN+ port, and an A+ / A- interface. The PUL+ port of the first stepper motor driver 222 is connected to the Q0.0 output port of the PLC controller 40, the DIR+ port is connected to the Q0.1 output port of the PLC controller 40, and the EN+ port is connected to the Q1.0 output port of the PLC controller 40. The A+ / A- interface of the first stepper motor driver 222 is connected to the first stepper motor 221. The PUL+ port of the second stepper motor driver 233 is connected to the Q0.2 output port of the PLC controller 40, the DIR+ port is connected to the Q0.3 output port of the PLC controller 40, and the EN+ port is connected to the Q1.1 output port of the PLC controller 40. The A+ / A- interface of the second stepper motor driver 233 is connected to the second stepper motor 231. A 48V DC power supply is used to power the first stepper motor driver 222 and the second stepper motor driver 233.

[0044] Specifically, in the exemplary embodiment disclosed in this utility model, both the first solid-state relay 131 and the second fixed relay include a control terminal and an output terminal. The output terminal includes an L interface and a T interface. The control terminal of the first solid-state relay 131 is connected to the Q0.4 output port of the PLC controller 40. The L interface is connected to the 220V power supply live wire, and the T interface is connected to the positive terminal of the ultraviolet LED lamp group 13. The negative terminal of the ultraviolet LED lamp group 13 is connected to the 220V power supply neutral wire. The control terminal of the second solid-state relay 51 is connected to the Q0.5 output port of the PLC controller 40. The L interface of the second solid-state relay 51 is connected to the 220V power supply live wire, and the T interface of the second solid-state relay 51 is connected to the positive terminal of the negative ion air purifier 50. The negative terminal of the negative ion air purifier 50 is connected to the 220V power supply neutral wire.

[0045] For example, in an exemplary embodiment disclosed in this utility model, the ultraviolet elevator button panel sterilization and disinfection device of this utility model further includes a host computer system 42, which is connected to the PLC controller 40 via a communication module 41. The host computer system 42 includes at least one of a computer, a server, and a mobile terminal.

[0046] Specifically, the communication module 41 can be selected from Ethernet, Wi-Fi, or 4G / 5G modules depending on the actual situation. Through the signal connection between the host computer system 42 and the PLC controller, operators can monitor the real-time operating status of the elevator button panel sterilization and disinfection device from a remote location, such as an office computer or mobile terminal. The server in the host computer system 42 can collect a large amount of operating data transmitted by the PLC controller, including the device's start-up time, runtime, and fault alarm information. Analysis of this data can optimize sterilization and disinfection strategies, such as adjusting the disinfection cycle based on usage frequency. Users can flexibly set the parameters of the sterilization and disinfection device on the computer or mobile terminal of the host computer system 42. For example, the irradiation time and intensity of the ultraviolet lamps can be adjusted according to the bacterial growth conditions in different seasons to achieve a more precise and efficient sterilization and disinfection effect.

[0047] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0048] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0049] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A UV sterilization and disinfection device for elevator button panels, characterized in that, It includes an ultraviolet sterilization component, a support component that supports and drives the ultraviolet sterilization component to rotate, a sensor component, and a controller; The supporting component includes a base, a first rotating element and a second rotating element. The second rotating element is connected to the ultraviolet sterilization component, supports the ultraviolet sterilization component and drives the ultraviolet sterilization component to rotate. The first rotating element is connected to the second rotating element, supports the second rotating element and drives the second rotating element to rotate. The first rotating element is disposed on the base. The first rotating element includes a first stepper motor, and the second rotating element includes a second stepper motor. The first stepper motor, the second stepper motor, the ultraviolet sterilization component, and the sensor component are electrically connected to the controller.

2. The ultraviolet elevator button panel sterilization and disinfection device according to claim 1, characterized in that, The ultraviolet sterilization component includes a box, a reflector, and an ultraviolet LED lamp assembly. One side of the box has an opening, the reflector is located inside the box, and the opening of the reflector coincides with the opening of the box. The ultraviolet LED lamp assembly is located inside the reflector, and a supporting component connection part is provided on the side of the box opposite to the opening.

3. The ultraviolet elevator button panel sterilization and disinfection device according to claim 2, characterized in that, The base is provided with a first rotating connection part, which is a hollow columnar structure. The first stepper motor is located inside the first rotating connection part, and the output shaft of the first stepper motor protrudes from the first rotating connection part.

4. The ultraviolet elevator button panel sterilization and disinfection device according to claim 3, characterized in that, The second rotating element further includes a second rotating connection part, one end of which is rotatably connected to the output shaft of the first stepper motor, and the other end face is provided with the second stepper motor, the output shaft of the second stepper motor being rotatably connected to the bearing component connection part.

5. The ultraviolet elevator button panel sterilization and disinfection device according to claim 1, characterized in that, The output shaft of the first stepper motor forms an angle with the extended line of the output shaft of the second stepper motor. The first stepper motor is used to control the ultraviolet sterilization component to rotate horizontally relative to the base, and the second stepper motor is used to control the ultraviolet sterilization component to rotate vertically relative to the base.

6. The ultraviolet elevator button panel sterilization and disinfection device according to claim 1, characterized in that, The first stepper motor has a rotation angle of 0-360 degrees, and / or the second stepper motor has a rotation angle of -60 degrees to 60 degrees.

7. The ultraviolet elevator button panel sterilization and disinfection device according to claim 2, characterized in that, The controller is a PLC controller, and the sensor assembly includes a human infrared sensor, a weighing sensor, and a door magnetic sensor. The human infrared sensor is located on the ultraviolet sterilization assembly, the weighing sensor is located at the bottom of the elevator car, and the door magnetic sensor is located at the elevator door. The human infrared sensor, the weighing sensor, and the door magnetic sensor are all electrically connected to the input port of the PLC controller.

8. The ultraviolet elevator button panel sterilization and disinfection device according to claim 7, characterized in that, The first stepper motor is electrically connected to the output port of the PLC controller via a first stepper motor driver, the second stepper motor is electrically connected to the output port of the PLC controller via a second stepper motor driver, and the ultraviolet LED lamp group is electrically connected to the output port of the PLC controller via a first solid-state relay.

9. The ultraviolet elevator button panel sterilization and disinfection device according to claim 7, characterized in that, The box is equipped with a negative ion air purifier, which is electrically connected to the output port of the PLC controller via a second solid-state relay.

10. The ultraviolet elevator button panel sterilization and disinfection device according to claim 7, characterized in that, It also includes a host computer system, which is connected to the PLC controller via a communication module. The host computer system includes at least one of a computer, a server, and a mobile terminal.

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