Automatic cleaning and disinfecting device for hand strap

Abstract

The utility model relates to an automatic cleaning and disinfecting device for a hand strap, which comprises a machine base body, and an upper opening of the machine base body and the hand strap form a hollow cavity; the dust removal module and the disinfection module are sequentially arranged in the machine base body in the moving direction of the hand strap; in the dust removal module, a first roller can be attached to the surface of the hand strap, and the moving hand strap can drive the first roller to rotate; in the disinfection module, under the action of a linear moving unit, a second roller unit can move back and forth between a set initial position and a set target position, so that the second roller unit is separated from and attached to the surface of the hand strap; and the liquid spraying range of the liquid spraying nozzle covers the initial position and the target position of the second roller unit. The cleaning device is compact in structure, the disinfection effect can be improved through the working process of first dust removal and then disinfection, dust and most pathogens are removed and killed in advance through the first rolling wheel, it is ensured that the second rolling wheel directly acts disinfectant on the cleaned surface, and the sterilization efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of handrail technology, and in particular to an automatic cleaning and disinfection device for handrails. Background Technology

[0002] With economic and social development and the improvement of people's living standards, people have higher requirements for the convenience of travel. Escalators have become one of the main means of transportation in densely populated areas. For safety reasons, passengers should hold the handrail when using escalators to prevent accidents. However, in densely populated places such as subways, stations, airports, shopping malls, and hospitals, while escalators bring convenience to people's travel, the surface of the handrail is difficult to keep clean due to repeated contact with people's hands. This makes it easy for bacteria to grow and cause cross-infection, posing a certain public health hazard. Studies have shown that the surface of escalator handrails in large supermarkets is rich in microbial species, including bacteria such as drug-resistant Staphylococcus aureus. The degree of contamination on the handrail surface is affected by the flow of people, suggesting that there is a potential risk of pathogen transmission in the handrails of large supermarket escalators.

[0003] To reduce the risk of cross-infection from pathogens and viruses when using escalators, large public places often employ manual, timed cleaning and disinfection. This involves regularly wiping the escalator handrails with a cloth soaked in disinfectant. However, this method is labor-intensive, time-consuming, and requires stopping the escalator or walking on it, reducing efficiency and posing safety hazards. Furthermore, it cannot adjust the disinfection interval and frequency based on the flow of users.

[0004] Existing escalator handrail disinfection devices mostly use ultraviolet (UV) lamps to directly irradiate the handrails. However, UV disinfection requires continuous exposure to UV light to disinfect pathogens. For example, common bacteria like Escherichia coli and Staphylococcus aureus typically require continuous UV irradiation for at least 2 minutes to inhibit their growth. For an escalator with a rated speed of 0.5 m / s, the length of the handrail directly exposed to UV light would need to be at least 60 m. Clearly, the effectiveness of direct UV irradiation for handrail disinfection is limited in practical applications. Therefore, there is an urgent need for an automatic, efficient, and multifunctional handrail cleaning and disinfection device. Utility Model Content

[0005] Based on this, the purpose of this utility model is to overcome the defects or deficiencies of the prior art and provide an automatic cleaning and disinfection device for handrail belts.

[0006] An automatic cleaning and disinfection device for handrail belts includes a base body with an opening at its top forming a hollow cavity with the handrail belt; and a dust removal module and a disinfection module sequentially arranged within the base body along the moving direction of the handrail belt; the dust removal module includes a first fixed shaft with both ends fixedly mounted on the base body, and a first roller sleeved on the first fixed shaft, the first roller being able to fit against the surface of the handrail belt, and the moving handrail belt being able to drive the first roller to rotate; the disinfection module includes a linear movement unit disposed on the base body, a second roller unit connected to the linear movement unit, and a spray nozzle fixedly disposed on the base body; under the action of the linear movement unit, the second roller unit can move back and forth between a set initial position and a target position to achieve separation and fit with the surface of the handrail belt; the spray range of the spray nozzle covers the initial position and the target position of the second roller unit.

[0007] Compared with existing technologies, the automatic cleaning and disinfection device of this utility model has a compact structure. The workflow of dust removal followed by disinfection can improve the disinfection effect. The sponge roller can remove dust and disinfect most pathogens in advance, ensuring that the rubber roller directly applies the disinfectant to the cleaned surface, thereby improving the sterilization efficiency.

[0008] In one embodiment, a dust guide baffle is also included. The dust guide baffle is disposed in the base body and divides the hollow cavity into a first cavity and a second cavity that are not interconnected. The dust removal module is disposed in the first cavity and the disinfection module 30 is disposed in the second cavity.

[0009] In one embodiment, a dust collection drawer is also included, disposed below the first roller, and the dust collection drawer is detachably connected to the base body.

[0010] In one embodiment, an ultraviolet lamp is also included, which is fixedly mounted on the base body. The irradiation range of the ultraviolet lamp covers the first roller and the dust collection drawer, but does not cover the handrail belt.

[0011] In one embodiment, the first roller is a cylindrical sponge roller.

[0012] In one embodiment, the linear motion unit includes a first solenoid valve and a return spring fixedly mounted on the base body, a support rod slidably connected to the output push rod of the first solenoid valve and connected to the return spring, and a third fixed shaft fixed at both ends on the base body; one end of the support rod is sleeved on the third fixed shaft, and the support rod can rotate around the third fixed shaft.

[0013] In one embodiment, the second roller unit includes a second fixed shaft, which is fixedly connected to the support rod; and a second roller sleeved on the second fixed shaft, which can fit against the surface of the handrail belt, and the moving handrail belt can drive the second roller to rotate.

[0014] In one embodiment, the second roller is provided with a U-shaped groove, and when the second roller is in contact with the handrail belt, the U-shaped groove contacts the top and side surfaces of the handrail belt.

[0015] In one embodiment, the system further includes a storage tank connected to the nozzle via a pipeline, a buoy sensor disposed within the storage tank, and a second solenoid valve disposed between the storage tank and the pipeline connecting the nozzle.

[0016] In one embodiment, a control module is also included, comprising a passenger flow data acquisition device and a controller. The passenger flow data acquisition device includes an infrared transmitter installed at the entrance and exit of the escalator and a receiver that cooperates with the infrared transmitter. The controller is electrically connected to the ultraviolet lamp, the receiver, the first solenoid valve, the second solenoid valve, and the buoy sensor.

[0017] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the function of the automatic cleaning and disinfection device and the handrail belt of this utility model;

[0019] Figure 2 This is a schematic diagram of the automatic cleaning and disinfection device of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the second roller in the automatic cleaning and disinfection device of this utility model. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings.

[0022] like Figure 1 As shown, the automatic cleaning and disinfection device 100 for handrail belts of this utility model is located below the return side of the handrail belt and is used to clean and disinfect the surface of the handrail belt. In addition, it also includes escalator wall panels (not shown), which are vertical guard plates set on both sides of the handrail belt to support the running track of the handrail belt and prevent passengers from falling or contacting internal mechanical parts. The automatic cleaning and disinfection device 100 for handrail belts is located in the area enclosed by the escalator wall panels and the handrail belt.

[0023] like Figure 2As shown, the automatic cleaning and disinfection device 100 includes a base body 10 with an opening at the top, which is slidably connected to the handrail belt and forms a hollow cavity Q (not shown in the figure) with the handrail belt; a dust removal module 20 and a disinfection module 30 are arranged sequentially in the base body along the moving direction of the handrail belt; and a control module 40, which is used to control the operation of the dust removal module 20 and the disinfection module 30.

[0024] To prevent dust in the dust removal module 20 from moving randomly into the disinfection module 30, a dust guide baffle 50 is also included. The dust guide baffle 50 is disposed inside the base body 10, dividing the hollow cavity Q into a first cavity Q1 (not shown) and a second cavity Q2 (not shown) that are not interconnected. The dust removal module 20 is disposed in the first cavity Q1, and the disinfection module 30 is disposed in the second cavity Q2. Furthermore, the dust guide baffle 50 is inclined toward the dust removal module 20 to better guide dust to fall below the dust removal module 20.

[0025] The dust removal module 20 includes a first roller unit 21 disposed on the base body 10, which includes a first fixed shaft 211 with both ends fixedly disposed on the base body 10, and a first roller 212 sleeved on the first fixed shaft 211. The first roller 212 can fit against the surface of the handrail belt, and the moving handrail belt can drive the first roller 212 to rotate.

[0026] Specifically, the first roller 212 is a sponge roller, which has high adsorption properties and can effectively capture dust, bacteria and viruses on the surface of the handrail; in this embodiment, the first roller 212 is a cylindrical sponge roller.

[0027] In order to collect the dust swept off the surface of the handrail by the first roller 212, a dust collection tray 22 is also provided below the first roller 212. The dust collection tray 22 is detachably connected to the base body 10. When enough dust is collected in the dust collection tray 22, the dust collection tray 22 can be removed from the base body 10 to remove the dust in the dust collection tray 22.

[0028] In specific implementation, it also includes a base slide rail (not shown) and a dust collection drawer inlet / outlet 23 disposed on the base body 10. The dust collection drawer 22 is disposed on the base slide rail, and one end of it is disposed at the dust collection drawer inlet / outlet 23. The dust collection drawer 22 can move back and forth on the base slide rail, and can be removed from the base body 10 by pulling the dust collection drawer 22 out from the dust collection drawer inlet / outlet 23.

[0029] In order to disinfect pathogens in the dust, the dust removal module 20 also includes an ultraviolet lamp 24 fixedly installed on the base body 10. When the ultraviolet lamp 24 is working, it kills pathogens on the first roller 212 and in the dust collection tray 22 at the same time, without directly irradiating the handrail belt.

[0030] The disinfection module 30 includes a linear movement unit 31 disposed on the base body 10, a second roller unit 32 connected to the linear movement unit 31, and a spray nozzle 33 fixedly disposed on the base body 10. Under the action of the linear movement unit 31, the second roller unit 32 can move back and forth between a set initial position and a target position to achieve separation and contact with the surface of the handrail belt. The spray range of the spray nozzle 33 needs to cover the initial position and the target position of the second roller unit 32.

[0031] The linear motion unit 31 includes a first solenoid valve 311 and a return spring 312 fixedly mounted on the base plate 11, a support rod 313 slidably connected to the output push rod of the first solenoid valve 311 and connected to the return spring 312, and a third fixed shaft 314 fixed at both ends on the base body 10; one end of the support rod 313 is sleeved on the third fixed shaft 314, and the support rod 313 can rotate around the third fixed shaft 314.

[0032] When the first solenoid valve 311 is energized, it pushes the support rod 313 upward until the support rod 313 reaches the target position. At this time, the return spring 312 is in a stretched state. When the first solenoid valve 311 is de-energized, the return spring 312 drives the support rod 313 to return to the initial position. Under the action of the first solenoid valve 311 and the return spring 312, the support rod 313 can move back and forth between the initial position and the target position. During this process, the support rod 313 rotates around the third fixed axis 314.

[0033] The second roller unit 32 includes a second fixed shaft 321, which is fixedly connected to the support rod 313; and a second roller 322 sleeved on the second fixed shaft 321. The second roller 322 can fit against the surface of the handrail belt, and the moving handrail belt can drive the second roller 322 to rotate.

[0034] Specifically, the second roller 322 is a rubber roller, which is elastic, corrosion-resistant and wear-resistant, and suitable for long-term disinfection scenarios; furthermore, in order to achieve full coverage of the handrail surface and improve disinfection efficiency, the second roller is provided with a U-shaped groove 322A, which contacts the top and side surfaces of the handrail surface when the second roller is in contact with the handrail.

[0035] Specifically, the spray range of the nozzle 33 needs to cover the initial position and target position of the second roller 322.

[0036] To ensure safe and convenient replenishment of disinfectant and maintain the continuous and stable operation of the disinfection process, a storage tank (not shown) is also included, which is connected to the spray nozzle 33 via a pipeline. Furthermore, a float sensor (not shown) is installed inside the storage tank to detect the liquid level in the tank. Additionally, an injection port (not shown) is provided on the escalator wall panel, which is connected to the storage tank via a pipeline.

[0037] To control the operation of the spray nozzle 33, a second solenoid valve (not shown) is also included, which is disposed between the liquid storage tank and the connecting pipeline of the spray nozzle 33. When the second solenoid valve is energized, the spray nozzle 33 sprays out disinfectant by the pressure of the liquid storage tank; when the second solenoid valve is de-energized, the spray nozzle 33 does not spray out disinfectant. In specific implementation, the second solenoid valve is a normally closed solenoid valve.

[0038] The control module 40 includes a passenger flow data acquisition device (not shown) and a controller (not shown). The passenger flow data acquisition device includes an infrared transmitter installed at the entrance and exit of the escalator and a receiver that works in conjunction with the infrared transmitter. The controller is electrically connected to the ultraviolet lamp 24, the receiver, the first solenoid valve 311, the second solenoid valve, and the buoy sensor.

[0039] Furthermore, it also includes a keyboard (not shown) and a display screen (not shown) for parameter setting, status monitoring and fault management.

[0040] Specifically, the infrared transmitter and receiver are installed in a straight line. The infrared transmitter emits a beam of light to the receiver. When no passengers are passing by, the light emitted by the infrared transmitter can reach the receiver smoothly. After receiving the light signal, the receiver outputs a low level to the controller via its internal circuit. When a passenger passes through the area, the light is blocked, and the light emitted by the infrared transmitter cannot reach the receiver smoothly. At this time, the receiver does not receive a light signal, and the corresponding internal circuit outputs a high level to the controller. The controller can calculate the passenger capacity of the escalator by counting the number of high-level signals.

[0041] The working process of this utility model is as follows: When the handrail belt is in operation, it drives the first roller 212 to rotate around the first fixed axis 211. The first roller 212 can effectively capture dust, bacteria, and viruses on the surface of the handrail belt and transfer them to the dust collection tray 22. At the same time, the controller controls the ultraviolet lamp 24 to work, disinfecting the bacteria and viruses in the first roller 212 and the dust collection tray 22. When a passenger passes through the escalator entrance, the controller obtains the real-time passenger flow by calculating the high level output of the receiver. If the passenger flow reaches the set passenger flow threshold, it first controls the second solenoid valve to work, so that the disinfectant completely covers the surface of the second roller 322. Then, it controls the first solenoid valve 311 to work, so that the second roller 322 with disinfectant adheres to the surface of the handrail belt. After a certain period of time, it controls the first solenoid valve 311 and the second solenoid valve to stop working, and at the same time, the high level output of the receiver returns to zero. During this process, when the controller detects that the liquid level is lower than the set threshold through the float sensor, the controller controls the second solenoid valve to stop working, suspends the spraying function, and prompts the staff to add liquid through the terminal display screen / audio-visual alarm.

[0042] Compared with existing technologies, this utility model has a compact structure, and the workflow of dust removal followed by disinfection can improve the disinfection effect. The sponge roller can remove dust and disinfect most pathogens in advance, ensuring that the rubber roller directly applies the disinfectant to the cleaned surface, thereby improving the sterilization efficiency.

[0043] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments and claims of this application are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that, unless otherwise stated, “a plurality” means two or more; the terms “first,” “second,” “third,” etc., are used only to distinguish and not to describe a particular order or sequence, nor should they be construed as indicating or implying relative importance. The term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items. When the above description relates to drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. In the description of this application, those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An automatic cleaning and disinfection device for handrail belts, characterized in that, include: The base body has an opening at the top that, together with the armrest strap, forms a hollow cavity; And a dust removal module and a disinfection module are sequentially arranged in the base body along the moving direction of the handrail belt; The dust removal module includes a first fixed shaft with both ends fixed on the base body, and a first roller sleeved on the first fixed shaft. The first roller can fit against the surface of the handrail belt, and the moving handrail belt can drive the first roller to rotate. The disinfection module includes a linear motion unit disposed on the base body, a second roller unit connected to the linear motion unit, and a spray nozzle fixedly disposed on the base body; under the action of the linear motion unit, the second roller unit can move back and forth between a set initial position and a target position to achieve separation and contact with the surface of the handrail belt; the spray range of the spray nozzle covers the initial position and the target position of the second roller unit.

2. The automatic cleaning and disinfection device according to claim 1, characterized in that: It also includes a dust guide baffle, which is disposed in the base body and divides the hollow cavity into a first cavity and a second cavity that are not interconnected. The dust removal module is disposed in the first cavity and the disinfection module is disposed in the second cavity.

3. The automatic cleaning and disinfection device according to claim 1, characterized in that: It also includes a dust collection drawer located below the first roller, and the dust collection drawer is detachably connected to the base body.

4. The automatic cleaning and disinfection device according to claim 1, characterized in that: It also includes an ultraviolet lamp fixedly mounted on the base body, the ultraviolet lamp's irradiation range covering the first roller and dust collection drawer, but not the handrail belt.

5. The automatic cleaning and disinfection device according to claim 1, characterized in that: The first roller is a cylindrical sponge roller.

6. The automatic cleaning and disinfection device according to claim 1, characterized in that: The linear motion unit includes a first solenoid valve and a return spring fixedly mounted on the base body, a support rod slidably connected to the output push rod of the first solenoid valve and connected to the return spring, and a third fixed shaft fixed at both ends on the base body; one end of the support rod is sleeved on the third fixed shaft, and the support rod can rotate around the third fixed shaft.

7. The automatic cleaning and disinfection device according to claim 6, characterized in that: The second roller unit includes a second fixed shaft, which is fixedly connected to the support rod; and a second roller sleeved on the second fixed shaft, which can fit against the surface of the handrail belt, and the moving handrail belt can drive the second roller to rotate.

8. The automatic cleaning and disinfection device according to claim 7, characterized in that: The second roller is provided with a U-shaped groove, and when the second roller is in contact with the handrail belt, the U-shaped groove contacts the top and side surfaces of the handrail belt.

9. The automatic cleaning and disinfection device according to claim 1, characterized in that: It also includes a storage tank connected to the nozzle via a pipeline, a buoy sensor installed in the storage tank, and a second solenoid valve installed between the storage tank and the pipeline connecting the nozzle.

10. The automatic cleaning and disinfection device according to claim 6, characterized in that: It also includes an ultraviolet lamp fixedly mounted on the base body, the irradiation range of which covers the first roller and the dust collection drawer, but does not cover the handrail belt; It also includes a storage tank connected to the spray nozzle via a pipeline, a buoy sensor installed in the storage tank, and a second solenoid valve installed between the storage tank and the spray nozzle connecting pipeline; It also includes a control module, which includes a passenger flow data acquisition device and a controller. The passenger flow data acquisition device includes an infrared transmitter installed at the entrance and exit of the escalator and a receiver that works in conjunction with the infrared transmitter. The controller is electrically connected to the ultraviolet lamp, the receiver, the first solenoid valve, the second solenoid valve, and the buoy sensor.

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