Handrail cleaning device
By incorporating a cleaning brush assembly and a spray component into the handrail belt cleaning device, and utilizing a telescopic mechanism, efficient cleaning of the handrail belt is achieved. This solves the problems of poor cleaning effect and low efficiency in existing technologies, improves the cleaning effect, and reduces the risk of static electricity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HITACHI ELEVATOR GUANGZHOU ESCALATOR
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-26
Smart Images

Figure CN224279471U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of elevator technology, and in particular to a handrail cleaning device. Background Technology
[0002] Escalators typically include handrails, which provide passengers with a grip to prevent them from falling due to instability or loss of balance. To ensure the cleanliness of the handrails and provide a comfortable riding experience for passengers, they need to be wiped and cleaned regularly.
[0003] However, the handrail cleaning devices in related technologies have poor cleaning effect and low operating efficiency. Utility Model Content
[0004] Therefore, it is necessary to provide a handrail cleaning device that effectively cleans handrails and has high work efficiency to address the above problems.
[0005] A handrail cleaning device is provided, comprising:
[0006] A frame, used for mounting on the truss of an escalator;
[0007] A cleaning mechanism includes a cleaning brush assembly, a spray component, and a cleaning seat. The cleaning brush assembly and the spray component are both mounted on the cleaning seat and are distributed sequentially along a first direction. The cleaning brush assembly is used to wipe the handrail of the escalator, and the spray component is used to spray cleaning liquid onto the handrail. The cleaning seat is mounted on the frame and is movable relative to the frame along a second direction, which forms an angle with the first direction.
[0008] A telescopic mechanism is provided on the frame and connected to the cleaning seat. The telescopic mechanism is used to drive the cleaning seat to reciprocate along the second direction.
[0009] In one embodiment, the cleaning brush assembly has two sets, which are spaced apart along the first direction, and the spray component is disposed between the two sets of cleaning brush assemblies.
[0010] In one embodiment, the cleaning brush assembly includes a brush mount and at least one brush body, the brush mount and the spraying component being sequentially distributed along the first direction, and the brush body being detachably disposed in the brush mount.
[0011] In one embodiment, the cleaning seat includes a base plate, a first limiting plate, a second limiting plate, and a locking plate. The brush mounting seat is connected to the base plate. The first limiting plate and the second limiting plate are both connected to the base plate and are spaced apart and opposite to each other along a third direction. The third direction forms an angle with the first direction and the second direction, respectively. The brush mounting seat is disposed on the base plate at the position between the first limiting plate and the second limiting plate. The brush mounting seat has at least one mounting recess. The brush body corresponds to each mounting recess and is installed in the corresponding mounting recess. The first limiting plate has a mounting opening that communicates with the mounting recess. The locking plate is detachably disposed on the side of the first limiting plate facing away from the second limiting plate, and the locking plate blocks at least a portion of the mounting opening to lock the brush body in the mounting recess.
[0012] In one embodiment, the cleaning seat further includes a locking protrusion connected to the substrate. The locking protrusion protrudes from the side of the first limiting plate facing away from the second limiting plate. The locking plate includes a plate body and a snap-fit portion disposed at one end of the plate body. The snap-fit portion engages with the locking protrusion.
[0013] In one embodiment, the cleaning seat further includes a limiting part protruding from the side of the first limiting plate facing away from the second limiting plate, the plate body is provided with a limiting opening, and the limiting part can pass through the limiting opening.
[0014] In one embodiment, a control component disposed on the frame is also included, the control component being capable of controlling the extension and retraction of the telescopic mechanism and selectively spraying cleaning liquid from the spraying component.
[0015] In one embodiment, a detection component communicatively connected to the control component is also included. The detection component is disposed on the cleaning mechanism and is used to detect the handrail strap.
[0016] In one embodiment, a liquid storage tank is also included, which is disposed in the frame and communicates with the spraying component.
[0017] In one embodiment, the system further includes a level detector and an alarm communicatively connected to the level detector, the level detector being disposed inside the storage tank for detecting the level inside the storage tank.
[0018] The aforementioned handrail cleaning device mounts both the cleaning brush assembly and the spray component on a cleaning base. A telescopic mechanism is connected to the cleaning base. The extension and retraction of the telescopic mechanism allows the cleaning brush assembly and spray component to move vertically. When cleaning the handrail is required, the telescopic mechanism extends vertically, bringing the cleaning brush assembly and spray component closer to the handrail. As the handrail moves, it moves relative to the cleaning brush assembly, allowing the brush assembly to wipe the handrail and remove foreign matter (such as dust or stains) from its surface. While the brush assembly wipes the handrail, the spray component sprays cleaning fluid onto the surface. This cleaning fluid moistens the handrail surface, facilitating cleaning and improving cleaning efficiency. Furthermore, the spray increases the humidity of the air near the handrail, reducing the risk of static electricity buildup during brush wiping. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of an angle of the handrail cleaning device in some embodiments of this application.
[0020] Figure 2 This is a structural diagram of the handrail cleaning device and handrail in some embodiments of this application (when the telescopic mechanism is in the extended state).
[0021] Figure 3 This is a structural diagram of the handrail cleaning device and handrail in some embodiments of this application (when the telescopic mechanism is in the retracted state).
[0022] Figure 4 for Figure 1 The diagram shown is an exploded view of the escalator with a cleaning device.
[0023] Figure 5 for Figure 1 The diagram shown illustrates the process of replacing the brush in the escalator belt cleaning device.
[0024] Figure 6 This is a schematic diagram of an angle of the cleaning brush assembly described in some embodiments of this application.
[0025] Figure 7 This is a schematic diagram of the cleaning brush assembly described in some embodiments of this application from another angle.
[0026] Figure 8 This is a schematic diagram of the frame, telescopic mechanism, liquid storage tank, guiding mechanism and cleaning mechanism in some embodiments of this application.
[0027] In the picture:
[0028] 1. Frame; 2. Cleaning mechanism; 21. Cleaning brush assembly; 211. Brush mounting base; 2111. Mounting recess; 212. Brush body; 22. Spraying component; 23. Cleaning seat; 231. Base plate; 232. First limiting plate; 2321. Mounting port; 233. Second limiting plate; 234. Locking plate; 2341. Limiting port; 235. Locking protrusion; 236. Limiting part; 3. Telescopic mechanism; 4. Control component; 5. Detection component; 6. Liquid storage tank; 7. Guide mechanism; 71. Guide rod; 72. Sliding block; 73. Connector; 100. Handrail belt. Detailed Implementation
[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0030] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0031] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0033] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0035] See Figure 1 , Figure 2 and Figure 3 , Figure 1 A schematic diagram of an angle of the handrail cleaning device in some embodiments of this application is shown; Figure 2 The diagram shows the structural features of the handrail cleaning device and handrail in some embodiments of this application (when the telescopic mechanism is in the extended state). Figure 3The diagram shows the structure of the handrail cleaning device and handrail in some embodiments of this application (when the telescopic mechanism is in the retracted state). One embodiment of the handrail cleaning device provided in this application includes a frame 1, a cleaning mechanism 2, and a telescopic mechanism 3. This handrail cleaning device is applied to an escalator, with the frame 1 mounted on the escalator's truss. The cleaning mechanism 2 includes a cleaning brush assembly 21, a spray component 22, and a cleaning seat 23. Both the cleaning brush assembly 21 and the spray component 22 are disposed on the cleaning seat 23, and are sequentially distributed along a first direction. The cleaning brush assembly 21 is used to wipe the handrail 100 of the escalator, and the spray component 22 is used to spray cleaning liquid onto the handrail 100; in this example, the cleaning liquid is water. The cleaning seat 23 is disposed on the frame 1 and is movable relative to the frame 1 along a second direction, which forms an angle with the first direction. In this embodiment, the second direction is perpendicular to the first direction, the first direction is parallel to the horizontal plane, and the second direction is a vertical direction. The telescopic mechanism 3 includes a fixed part and a telescopic part movably connected to the fixed part. The telescopic part can extend and retract relative to the fixed part, thereby driving the cleaning seat 23 to extend and retract vertically relative to the frame 1. In this application, the direction indicated by the X arrow in the figure is the first direction, and the direction indicated by the Z arrow in the figure is the second direction.
[0036] In this type of handrail cleaning device, the cleaning brush assembly 21 and the spray component 22 are both mounted on the cleaning seat 23. The telescopic mechanism 3 is connected to the cleaning seat 23. The extension and retraction of the telescopic part of the telescopic mechanism 3 can drive the cleaning brush assembly 21 and the spray component 22 to move vertically. When the handrail 100 needs to be cleaned, the telescopic part of the telescopic mechanism 3 extends vertically, driving the cleaning brush assembly 21 and the spray component 22 closer to the handrail 100. During the operation of the handrail 100, it moves relative to the cleaning brush assembly 21, allowing the cleaning brush assembly 21 to wipe the handrail 100, thereby removing foreign objects (such as dust or stains) from the surface of the handrail 100. While the cleaning brush assembly 21 wipes the handrail 100, the spray component 22 sprays cleaning liquid onto the surface of the handrail 100. The cleaning liquid can moisten the surface of the handrail 100, which is beneficial for the cleaning brush assembly 21 to clean the handrail 100, improving the cleaning effect of the handrail 100 and increasing work efficiency. In addition, spraying the surface of the handrail belt 100 with the spray component 22 can increase the humidity of the air near the handrail belt 100, and the cleaning brush assembly 21 can reduce the risk of static electricity being generated on the handrail belt 100 during the wiping process.
[0037] The cleaning brush assembly 21 has two sets, which are spaced apart along a first direction. A spray component 22 is positioned between the two sets of cleaning brush assemblies 21. By placing the spray component 22 between the two sets of cleaning brush assemblies 21, the escalator belt passes sequentially through one set of cleaning brush assemblies 21, the spray component 22, and the other set of cleaning brush assemblies 21 during operation, without being affected by the direction of the escalator belt's movement, thus making its use more flexible. Of course, in actual implementation, the number of cleaning brush assemblies 21 can be set to one, three, or four sets, etc., as needed.
[0038] In some implemented handrail cleaning devices, see [reference needed]. Figure 1 , Figure 2 and Figure 3 The cleaning brush assembly 21 also includes a brush mounting base 211 and at least one brush body 212. The brush mounting base 211 and the spray component 22 are distributed sequentially along a first direction. The brush body 212 is detachably disposed in the brush mounting base 211. It is understood that the brush body 212 will wear out after a period of use. By detachably disposing of the brush body 212 in the mounting base, it can be replaced when it wears to a certain extent, thus ensuring the effective wiping of the handrail belt 100 by the brush body 212.
[0039] The cleaning seat 23 includes a base plate 231, a first limiting plate 232, a second limiting plate 233, and a locking plate 234. A brush mounting seat 211 is connected to the base plate 231, providing support for the brush mounting seat 211. Both the first limiting plate 232 and the second limiting plate 233 are connected to the base plate 231 and are spaced apart along a third direction, which forms an angle with the first and second directions, respectively. In this example, the third direction is perpendicular to both the first and second directions. In this application, the Y-arrow refers to the third direction. The first limiting plate 232, the second limiting plate 233, and the base plate 231 are an integral structure. Figure 6 and Figure 7 The brush mounting base 211 has at least one mounting recess 2111, and the brush body 212 corresponds one-to-one with the mounting recess 2111. The brush body 212 is installed in the corresponding mounting recess 2111. Figure 4 and Figure 5The first limiting plate 232 is provided with an installation port 2321 that communicates with the installation recess 2111. The locking plate 234 is detachably provided on the side of the first limiting plate 232 facing away from the second limiting plate 233, and the locking plate 234 blocks at least a portion of the installation port 2321 to lock the brush body 212 in the installation recess 2111. In actual implementation, when it is necessary to replace the brush body 212, the locking plate 234 is removed from one side of the first limiting plate 232, so that the locking plate 234 is no longer blocking the mounting opening 2321. At this time, the brush body 212 in the mounting recess 2111 can be pulled out from the mounting opening 2321. After the old brush body 212 is pulled out from the substrate 231, the new brush body 212 is inserted into the mounting recess 2111 through the mounting opening 2321. Then, the locking plate 234 is installed on one side of the first limiting plate 232 to lock the brush body 212 and prevent the brush body 212 from detaching from the substrate 231 through the mounting opening 2321. The second limiting plate 233 is set at the end of the mounting recess 2111 facing away from the first limiting plate 232. During the installation of the brush body 212, when the end of the brush body 212 facing away from the first limiting plate 232 abuts against the second limiting plate 233, it indicates that the brush body 212 is installed in place.
[0040] Understandably, the head of the brush body 212 is located in the mounting recess 2111, and the tail of the brush body 212 is located outside the mounting recess 2111, so that when cleaning the handrail belt 100, the tail of the brush body 212 can wipe the handrail belt 100.
[0041] Each cleaning brush group 21 corresponds to a locking plate 234. In this example, each cleaning brush group 21 includes three brush bodies 212. Of course, in other examples, the number of brush bodies 212 in each cleaning brush group 21 can be flexibly set as needed.
[0042] To facilitate the installation and removal of the locking plate 234, the cleaning seat 23 includes a locking protrusion 235 connected to the base plate 231. The locking protrusion 235 protrudes from the side of the first limiting plate 232 facing away from the second limiting plate 233. The locking plate 234 includes a plate body and a snap-fit portion disposed at one end of the plate body. The snap-fit portion engages with the locking protrusion 235. In this example, the locking protrusion 235 is provided with a snap-fit hole, and the snap-fit portion engages in the snap-fit hole.
[0043] Of course, in other examples, the locking plate 234 may also be detachably disposed on the side of the first limiting plate 232 facing away from the second limiting plate 233 by means of screws or adhesives (such as Velcro). Here, specific restrictions are placed on the structure of the locking plate 234 being detachably disposed on the side of the first limiting plate 232 facing away from the second limiting plate 233.
[0044] Since the locking plate 234 engages with the locking protrusion 235, when replacing the brush body 212, the locking plate 234 can be pried up from the locking protrusion 235 using an external device, causing it to fall off one side of the first limiting plate 232. To address this, the cleaning seat 23 also includes a limiting part 236 protruding from the side of the first limiting plate 232 facing away from the second limiting plate 233. The main body of the plate has a limiting opening 2341, through which the limiting part 236 can pass. The locking plate 234 can move relative to the limiting part 236. Thus, after prying the locking plate 234 up from the locking protrusion 235, the limiting part 236 prevents the locking plate 234 from falling, and the pried-up locking plate 234 can be removed from one side of the first limiting plate 232, preventing accidental loss.
[0045] In some embodiments, see Figure 1 The handrail cleaning device includes a control component 4 mounted on a frame 1. The control component 4 can control the extension and retraction of the telescopic mechanism 3 and the spraying of cleaning liquid by the selective spray component 22. The control component 4, mounted on the frame 1, can be manually operated to control the handrail cleaning device to perform cleaning operations on the handrail 100.
[0046] Furthermore, the handrail cleaning device also includes a detection component 5 that is communicatively connected to the control component 4. The detection component 5 is mounted on the cleaning mechanism 2 and is used to detect the handrail 100. In this example, the detection component 5 is a photoelectric sensor, and it is located on the side of the second limiting plate 233 facing the first limiting plate 232. In actual implementation, when the handrail 100 needs to be cleaned, the telescopic mechanism 3 is used to drive the cleaning seat 23 to approach the handrail 100 along the second direction. When the detection component 5 detects the handrail 100, it transmits a signal to the control component 4. After receiving the signal, the control component 4 automatically controls the telescopic part of the telescopic mechanism 3 to stop telescopically extending or retracting, and the cleaning seat 23 stops moving along the second direction, allowing the brush body 212 to wipe the handrail 100. This design improves the automation of the handrail cleaning device.
[0047] In actual implementation, after the brush body 212 has been wiping the handrail belt for a set time, the control component 4 can automatically control the spray component 22 to stop spraying cleaning liquid, and at the same time automatically control the telescopic mechanism 3 to retract in the second direction, so that the brush body 212 and the spray component 22 move away from the handrail belt 100 at the same time, thus completing the cleaning work of the handrail belt 100.
[0048] In addition, the control component 4 can be set to communicate with a mobile device (such as a mobile phone) APP or mini-program. This allows staff to control the handrail cleaning device through the APP on their mobile devices. Staff can set the start and stop times of the handrail cleaning device on the APP to achieve automatic control.
[0049] See Figure 8 The handrail cleaning device also includes a liquid storage tank 6, which is installed in the frame 1. The liquid storage tank 6 stores cleaning liquid and is connected to the spray component 22 to supply liquid to the spray component 22 for convenient use.
[0050] In this example, the reservoir 6 is connected to the cleaning seat 23. Of course, in other examples, the reservoir 6 can also be connected to the rack 1.
[0051] To ensure timely replenishment of cleaning fluid to the storage tank 6, the handrail cleaning device also includes a level detector (not shown in the figure) and an alarm (not shown in the figure) connected in communication with the level detector. The level detector is mounted on the storage tank 6 and is used to detect the liquid level inside the tank. The level detector is located inside the storage tank 6. When the level detector detects that the liquid level inside the storage tank 6 is below a set height, it indicates that the cleaning fluid in the storage tank 6 is insufficient, and the alarm sounds to notify personnel to replenish the cleaning fluid promptly.
[0052] In practice, the alarm can communicate with mobile devices via Bluetooth or other means, facilitating connection between the alarm and the mobile device's APP or mini-program, so that staff can be reminded to replenish the cleaning fluid in a timely manner on the mobile device.
[0053] To make the cleaning seat 23 move more smoothly along the second direction, refer to... Figure 8 The handrail cleaning device also includes a guide mechanism 7, which comprises a guide rod 71, a connector 73, and a sliding block 72. The guide rod 71 is connected to the frame 1, and its length direction is parallel to the second direction. The connector 73 connects the cleaning seat 23 and the sliding block 72. The sliding block 72 is disposed in the frame 1 and can reciprocate along the second direction. The sliding block 72 is slidably engaged with the guide rod 71. As the cleaning seat 23 moves along the second direction, it drives the sliding block 72 to slide along the guide rod 71 along the second direction, which helps to improve the stability of the cleaning mechanism 2 moving along the second direction.
[0054] In one example, the telescopic mechanism 3 is an electric push rod. Of course, in other examples, the telescopic mechanism 3 can also be a telescopic cylinder, a telescopic hydraulic cylinder, or a lead screw mechanism, etc., and there are no specific restrictions on the structure of the telescopic mechanism 3.
[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0056] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A handrail belt cleaning device, characterized by include: A frame, used for mounting on the truss of an escalator; A cleaning mechanism includes a cleaning brush assembly, a spray component, and a cleaning seat. The cleaning brush assembly and the spray component are both mounted on the cleaning seat and are distributed sequentially along a first direction. The cleaning brush assembly is used to wipe the handrail of the escalator, and the spray component is used to spray cleaning liquid onto the handrail. The cleaning seat is mounted on the frame and is movable relative to the frame along a second direction, which forms an angle with the first direction. A telescopic mechanism is provided on the frame and connected to the cleaning seat. The telescopic mechanism is used to drive the cleaning seat to reciprocate along the second direction.
2. The handrail belt cleaning device according to claim 1, characterized in that The cleaning brush assembly has two sets, which are spaced apart along the first direction, and the spray component is disposed between the two sets of cleaning brush assemblies.
3. The handrail belt cleaning device of claim 1, wherein, The cleaning brush assembly includes a brush mounting base and at least one brush body. The brush mounting base and the spraying component are distributed sequentially along the first direction, and the brush body is detachably disposed in the brush mounting base.
4. The handrail strip cleaning device according to claim 3, characterized in that The cleaning seat includes a base plate, a first limiting plate, a second limiting plate, and a locking plate. The brush mounting seat is connected to the base plate. The first limiting plate and the second limiting plate are both connected to the base plate and are spaced apart and opposite to each other along a third direction. The third direction forms an angle with the first direction and the second direction, respectively. The brush mounting seat is disposed on the base plate between the first limiting plate and the second limiting plate. The brush mounting seat has at least one mounting recess. The brush body corresponds to each mounting recess and is installed in the corresponding mounting recess. The first limiting plate has a mounting opening that communicates with the mounting recess. The locking plate is detachably disposed on the side of the first limiting plate facing away from the second limiting plate, and the locking plate blocks at least a portion of the mounting opening to lock the brush body in the mounting recess.
5. The handrail cleaning device according to claim 4, characterized in that, The cleaning seat also includes a locking protrusion connected to the substrate. The locking protrusion protrudes from the side of the first limiting plate facing away from the second limiting plate. The locking plate includes a plate body and a snap-fit portion disposed at one end of the plate body. The snap-fit portion engages with the locking protrusion.
6. The handrail cleaning device according to claim 5, characterized in that, The cleaning seat also includes a limiting part protruding from the side of the first limiting plate facing away from the second limiting plate, and the plate body is provided with a limiting opening, through which the limiting part can pass.
7. The handrail cleaning device according to any one of claims 1 to 6, characterized in that, It also includes a control component mounted on the frame, which is capable of controlling the extension and retraction of the telescopic mechanism and selectively spraying cleaning fluid from the spraying component.
8. The handrail cleaning device according to claim 7, characterized in that, It also includes a detection component that is communicatively connected to the control component, the detection component being disposed on the cleaning mechanism, the detection component being used to detect the handrail strap.
9. The handrail cleaning device according to any one of claims 1 to 6, characterized in that, It also includes a liquid storage tank, which is disposed in the frame and is connected to the spraying component.
10. The handrail cleaning device according to claim 9, characterized in that, It also includes a liquid level detector and an alarm that is communicatively connected to the liquid level detector. The liquid level detector is installed inside the liquid storage tank and is used to detect the liquid level inside the liquid storage tank.