Hospital stair cleaning device

Abstract

The application provides a hospital stair cleaning device, which comprises a shell, a stair surface cleaning part, a stair wall cleaning part and a handrail cleaning part; the stair surface cleaning part comprises an elastic extension part, a lifting rod connected with the elastic extension part, a horizontal cleaning roller connected with one end of the lifting rod, a horizontal cleaning roller motor installed in the lifting rod to drive the horizontal cleaning roller to rotate, a dust suction box arranged above the horizontal cleaning roller and a suction motor connected with the dust suction box; the stair wall cleaning part comprises a vertical cleaning roller arranged on the side surface of the shell facing the stair wall and a vertical cleaning roller motor arranged in the shell to drive the vertical cleaning roller to rotate; the handrail cleaning part comprises a rotary adjusting assembly connected with the top of the shell and a handrail cleaning assembly connected with the rotary adjusting assembly; the handrail cleaning assembly comprises a main body part, a handrail clamping part connected with the main body part, a moving shaft rod part and a shaft rod power part; the hospital stair cleaning device has the advantages of sufficient cleaning and low damage.

Description

Technical Field

[0001] This invention relates to the field of medical cleaning devices, specifically to a hospital staircase cleaning device. Background Technology

[0002] When cleaning hospital staircases, it is usually necessary to manually spray disinfectant on the stairwells beforehand, and then use a wiping device to clean the stair surfaces, railings, and handrails. Currently, most hospital staircase cleaning work relies on cleaning workers using handheld cleaning tools to clean each floor, which is labor-intensive and inefficient. Patent CN113080766A discloses a hospital staircase railing and floor cleaning device, including a main body. A buffer plate is provided at the lower end of the main body. A transmission roller is provided at the side end of the main body. A first transmission belt is provided on the outer surface of the transmission roller. A motor is provided at the upper end of the first transmission belt. A second cleaning roller is provided at the side end of the transmission roller. A first cleaning roller is provided on the outer surface of the second cleaning roller. A screw is embedded in the inner side of the first cleaning roller. An air cylinder is provided at the front end of the main body. The air pump has a material cylinder on its side. Although the cleaning device has the function of automatically spraying disinfectant cleaning solution on the corridor and cleaning the handrails and railings of the stairs at the same time, the cleaning roller structure for cleaning the stair surface is rigidly connected to the main body of the device. During the movement, the cleaning roller structure is dragged and squeezed up and down every time it moves to the next step. Over time, this can easily cause deformation and damage. In addition, the cleaning roller can easily raise dust when cleaning the stair surface. The dust mixed with the disinfectant cleaning solution in the air can cause certain adverse irritation to people's respiratory tract. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hospital stair cleaning device that can thoroughly clean staircases and is applicable to staircases with different step heights and handrail sizes.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] This invention provides a hospital staircase cleaning device, comprising a housing, a stair surface cleaning component, a stair wall cleaning component, and a handrail cleaning component;

[0006] The ladder surface cleaning component includes an elastic telescopic part, a lifting rod connected to the elastic telescopic part for elastic telescopic extension and retraction in the vertical direction, a horizontal cleaning roller connected to one end of the lifting rod for cleaning the ladder surface, a horizontal cleaning roller motor installed in the lifting rod for driving the horizontal cleaning roller to rotate, a dust collection box located above the horizontal cleaning roller, and an exhaust motor connected to the dust collection box. The elastic telescopic part and the exhaust motor are located inside the housing.

[0007] The ladder wall cleaning component includes a vertical cleaning roller disposed on the side surface of the housing facing the ladder wall and a vertical cleaning roller motor disposed inside the housing to drive the vertical cleaning roller to rotate.

[0008] The handrail cleaning component includes a rotation adjustment assembly connected to the top of the housing and a handrail cleaning component connected to the rotation adjustment assembly. The handrail cleaning component includes a main body and a handrail clamping part, a moving shaft part, and a shaft power part connected to the main body. A start switch is detachably installed on the main body. The handrail clamping part includes two clamping plates connected to both ends of the main body along the width direction of the handrail for clamping and cleaning the sides of the handrail. The moving shaft part includes a plurality of moving shafts arranged and rolling along the length direction of the handrail. A cleaning component is sleeved on the surface of any of the moving shafts. The shaft power part includes a power motor installed on the main body and a power shaft driven by the power motor to rotate the moving shaft.

[0009] The surface of the housing is provided with an exhaust grid that is directly opposite the air outlet of the exhaust motor. The inner cavity of the housing is provided with a control unit, a battery panel and an electrical box. The battery panel, electrical box, horizontal cleaning roller motor, exhaust motor, vertical cleaning roller motor, start switch and power motor are all electrically connected to the control unit.

[0010] In one embodiment, the bottom of the housing has an opening relative to the lifting rod, the top of the lifting rod is connected to a limiting frame and the limiting frame is limited within the opening, and the elastic telescopic part includes a plurality of connecting springs, one end of any of the connecting springs is connected to the inner wall of the housing and the other end is connected to the limiting frame.

[0011] In one embodiment, the rotation adjustment assembly includes a first rotating block fixedly connected to the top of the housing and a second rotating block fixedly connected to the top of the main body. The first rotating block and the second rotating block are rotatably connected by a transverse locking screw. One end of the locking screw is connected to the second rotating block, and the other end passes through the first rotating block. The end of the locking screw that passes through the first rotating block is threadedly connected to a locking ring.

[0012] In one embodiment, the bottom of the main body has two connecting plates extending from the two ends of the movable shaft, and any one of the movable shafts is rotatably connected to the two connecting plates via a bearing. The output shaft of the power motor is connected to the power shaft, and the power shaft and the adjacent movable shaft are driven by a synchronous gear.

[0013] In one embodiment, the lifting rod is hollow, and the exhaust motor is connected to the dust collection box through the inside of the lifting rod. One end of the dust collection box is fixedly connected to the lifting rod, and the other end is fixedly connected to a vertical plate. Meanwhile, the other end of the lifting rod is rotatably connected to the vertical plate through a bearing. The bottom of the lifting rod and the bottom of the vertical plate respectively form a groove on the trapezoidal surface. The bottom of the groove is connected to a pressing plate through a spring. An auxiliary wheel with the same axial direction as the horizontal cleaning roller is installed at the bottom of the pressing plate.

[0014] In one embodiment, the electrical box is electrically connected to the horizontal cleaning roller motor and the exhaust motor respectively via spring wires, and the spring wire connected to the horizontal cleaning roller motor passes through the inner cavity of the lifting rod.

[0015] In one embodiment, the two ends of the main body are respectively provided with sliding grooves relative to the two clamping plates, one end of the clamping plate is slidably installed in the sliding groove, and the two clamping plates are connected by an elastic connector.

[0016] In one embodiment, the housing has a wiring port through which wires connecting the control unit and the start switch pass. The main body has a recessed groove opposite to the start switch. The two side walls opposite to the groove are provided with clamping members for locking the start switch. The bottom of the start switch has a protruding first contact portion for electrical connection. The bottom of the groove has a second contact portion opposite to the first contact portion. The power motor is electrically connected to the start switch through the first contact portion and the second contact portion.

[0017] In one embodiment, a plurality of V-shaped storage slots are arranged at intervals along the length of the dust collection box. A dust collection port facing the horizontal cleaning roller is opened at the bottom of the dust collection box between any adjacent V-shaped storage slots. An air guide pipe is provided above the plurality of V-shaped storage slots, which is directly opposite any of the dust collection ports. The air guide pipe is connected to the air outlet of the dust collection box.

[0018] In one embodiment, a filter layer is provided between the exhaust outlet of the exhaust motor and the exhaust mesh, and the filter layer is filled with cotton or activated carbon.

[0019] Compared with the prior art, the advantages of the hospital stair cleaning device provided by the present invention are as follows:

[0020] (1) It can clean the steps, handrails and side walls between the steps and handrails of the stairs at the same time. Based on the design of elastic telescopic parts, lifting rods and handrail cleaning components, it can be applied to stairs with different step heights and handrail sizes, and has a wider range of applicability. Multiple moving shafts are used to thoroughly clean and disinfect the step surfaces. During the cleaning process, the dust brushed by the horizontal cleaning roller is absorbed by the dust box and exhaust motor, so that the dust and disinfectant odors in the stairs are fully extracted, reducing the irritating odor emitted after cleaning and disinfection, cleaning up the dust splashed during the cleaning process, avoiding the pungent smell caused by the dust splashed during cleaning, and further purifying the hospital stair environment.

[0021] (2) The handrail cleaning component is fixed to the stair handrail by a clamping structure. By adjusting the rotating adjustment component, the structure such as the housing, lifting rod and horizontal cleaning roller can be ensured to be vertically downward to the stair steps. The angle of the rotating adjustment component is fixed by the locking ring. After the handrail cleaning component clamps the escalator handrail, it drives several moving shafts to move through the internal shaft power unit. At the same time, several moving shafts clean the surface of the stair handrail. The clamping plates on both sides of the handrail clamping part clean the two sides of the handrail, so that the exposed surface of the handrail is cleaned. The handrail clamping part uses a spring to connect the two clamping plates, so that the handrail clamping part can be used for escalator handrails of various specifications.

[0022] (3) The housing and the step surface cleaning components move along with the shaft power unit of the handrail cleaning component. The horizontal cleaning roller cleans the stair surface at the same time while moving. One end of the lifting rod is connected to the elastic telescopic part and the other end is connected to the horizontal cleaning roller. As the handrail cleaning component moves upward, the horizontal cleaning roller is always pressed against the escalator step under the action of the elastic telescopic part inside the housing, which avoids the lifting rod and the horizontal cleaning roller being squeezed and dragged by the step during the movement. The device is more durable as a whole. Furthermore, the step surface cleaning component is suitable for various steps of different heights and specifications based on the design of the elastic telescopic part.

[0023] Other advantages of the present invention will be described in detail in the following detailed description section with reference to the accompanying drawings. Attached Figure Description

[0024] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0025] In the attached diagram:

[0026] Figure 1 This is a perspective structural diagram of an embodiment of a hospital staircase cleaning device according to the present invention.

[0027] Figure 2 for Figure 1 The diagram shows the internal structure of the housing in the hospital stair cleaning device.

[0028] Figure 3 for Figure 1 The diagram shows the structural back of the housing in the hospital stair cleaning device shown.

[0029] Figure 4 for Figure 1 The diagram shows the internal structure of the lifting rod in the hospital stair cleaning device.

[0030] Figure 5 for Figure 4 A magnified view of part AA in the middle.

[0031] Figure 6 for Figure 1 The diagram shows the structural schematic of the stair surface cleaning component in the hospital stair cleaning device.

[0032] Figure 7 for Figure 1 The diagram shows a cross-sectional view of the central support plate of the hospital staircase cleaning system.

[0033] Figure 8 for Figure 1 The diagram shows the internal structure of the dust collection box in the hospital stairwell cleaning system.

[0034] Figure 9 (a) is Figure 1 The diagram shows the structure of the rotating adjustment component in the hospital stairwell cleaning system. Figure 9 (b) is a schematic diagram of the locking screw.

[0035] Figure 10 (a) is Figure 1 The diagram shows the structure of the handrail cleaning component in the hospital staircase cleaning system. Figure 10 (b) is a schematic diagram of the structure of the handrail cleaning assembly shown in (a) with the clamping plate open.

[0036] Figure 11 for Figure 1 The diagram shows the internal structure of the handrail cleaning component in the hospital staircase cleaning system.

[0037] Figure 12 for Figure 1 The diagram shows the structure of the movable shaft in the hospital stair cleaning device.

[0038] Explanation of reference numerals in the attached drawings: 1. Housing; 11. Control unit; 12. Battery panel; 13. Electrical box; 15. Exhaust mesh; 16. Inlet; 17. Top plate; 18. Guide rail; 2. Ladder surface cleaning components; 21. Elastic telescopic part; 22. Lifting rod; 221. Limiting frame; 23. Horizontal cleaning roller; 231. Cleaning sleeve; 24. Horizontal cleaning roller motor; 25. Dust collection box; 251. V-shaped storage groove structure; 252. Air duct; 253. Cover plate; 254. Connecting port; 26. Exhaust motor; 27. Vertical plate; 28. Auxiliary wheels; 3. Ladder wall cleaning components; 3. 1 Vertical cleaning roller, 32 Vertical cleaning roller motor, 4 Handrail cleaning component, 41 Rotation adjustment assembly, 411 First rotating block, 412 Second rotating block, 413 Locking screw, 414 Locking ring, 42 Handrail cleaning assembly, 43 Main body, 431 Start switch, 433 Connecting plate, 44 Handrail clamping part, 441 Clamping plate, 45 Moving shaft part, 451 Moving shaft, 452 Guide belt, 453 Scraper, 46 Shaft power part, 461 Power motor, 462 Power shaft, 47 Clamping component. Detailed Implementation

[0039] To further explain the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings, in which the same reference numerals denote the same parts.

[0040] See also Figure 1-12 This embodiment provides a hospital staircase cleaning device, including a housing 1, a stair surface cleaning component 2, a stair wall cleaning component 3, and a handrail cleaning component 4.

[0041] like Figure 2As shown, the stair surface cleaning component 2 includes an elastic telescopic part 21, a lifting rod 22 connected to the elastic telescopic part 21 for elastic telescopic movement in the vertical direction, a horizontal cleaning roller 23 connected to one end of the lifting rod 22 for cleaning the stair surface, a horizontal cleaning roller motor 24 installed inside the lifting rod 22 to drive the horizontal cleaning roller 23 to rotate, a dust collection box 25 located above the horizontal cleaning roller 23, and an exhaust motor 26 connected to the dust collection box 25. The elastic telescopic part 21 and the exhaust motor 26 are located inside the housing 1, and a cleaning sleeve 231 is fitted on the surface of the horizontal cleaning roller 23. The bottom of the housing 1 has an opening relative to the lifting rod 22, and a limiting frame 221 is connected to the top of the lifting rod 22, with the limiting frame 221 confined within the opening. The elastic telescopic part 21 consists of several connecting springs, with one end of any connecting spring connected to the inner wall of the housing 1 and the other end connected to the limiting frame 221. A guide rail 18 is provided on one inner wall of the housing 1. A protrusion is provided on the side of the limiting frame 221 facing the guide rail 18. The protrusion matches the guide rail 18, so that the limiting frame 221 drives the lifting rod 22 to move up and down along the guide rail 18. By limiting the lifting rod 22, it is possible to prevent the lifting rod 22 from being pushed out of the housing 1 by the elastic force of several connecting springs or from being locked into the housing 1 by the pushing force at the bottom end of the lifting rod 22. This ensures that the lower end of the lifting rod 22 contacts the surface of the stair treads as much as possible, avoiding cleaning gaps.

[0042] like Figure 4-7 As shown, the lifting rod 22 is hollow. The horizontal cleaning roller motor 24 is located at the bottom of the lifting rod 22, and its output shaft is connected to the horizontal cleaning roller 23. The exhaust motor 26 is connected to the dust collection box 25 through the inside of the lifting rod 22. One end of the dust collection box 25 is fixedly connected to the lifting rod 22, and the other end is fixedly connected to a vertical plate 27. At the same time, the other end of the lifting rod 22 is rotatably connected to the vertical plate 27 through a bearing. The bottom of the lifting rod 22 and the bottom of the vertical plate 27 respectively form a groove on the trapezoidal surface. The bottom of the groove is connected to a pressing plate through a spring. An auxiliary wheel 28 with the same axial direction as the horizontal cleaning roller 23 is installed at the bottom of the pressing plate. The auxiliary wheel 28 at the bottom of the lifting rod 22 is horizontally aligned with the auxiliary wheel 28 at the bottom of the vertical plate 27. The auxiliary wheel 28 increases the smoothness of the back-and-forth movement of the lifting rod 22 and the horizontal cleaning roller 23. Furthermore, the horizontal cleaning roller 23 is connected to the bottom of the groove through a spring, which can prevent the lifting rod 22 from being squeezed by several connecting springs and hindering the movement of the auxiliary wheel 28.

[0043] In this embodiment, the handrail cleaning component 4 includes a rotation adjustment assembly 41 connected to the top of the housing 1 and a handrail cleaning component 42 connected to the rotation adjustment assembly 41, such as... Figure 9As shown, the rotation adjustment assembly 41 includes a first rotating block 411 fixedly connected to the top of the housing 1 and a second rotating block 412 fixedly connected to the top of the main body 43. The first rotating block 411 and the second rotating block 412 are rotatably connected by a transverse locking screw 413. One end of the nut of the locking screw 413 is polygonal and connected to the second rotating block 412 to prevent the locking screw 413 from rotating during the process of the locking ring 414 being threadedly connected to the locking screw 413, which would result in insufficient locking. The other end of the locking screw 413 passes through the first rotating block 411. The end of the locking screw 413 that passes through the first rotating block 411 is threadedly connected to the locking ring 414. The second rotating block 412 can rotate relative to the first rotating block 411 through the locking engagement of the locking screw 413 and the locking ring 414, thereby adjusting the rotation angle of the handrail cleaning assembly 42 relative to the housing 1 and ensuring that the housing 1, the lifting rod 22, and the horizontal cleaning roller 23 and other structures are vertically aligned with the stair steps.

[0044] like Figure 10-12 As shown, the handrail cleaning assembly 42 includes a main body 43 and a handrail clamping part 44, a movable shaft part 45, and a shaft power part 46 connected to the main body 43. A start switch 431 is detachably installed on the main body 43. The handrail clamping part 44 includes two clamping plates 441 connected to both ends of the main body 43 along the width direction of the handrail for clamping and cleaning the side of the handrail. Specifically, the two ends of the main body 43 are respectively provided with sliding grooves relative to the two clamping plates 441. One end of the clamping plate 441 is slidably installed in the sliding groove, and the two clamping plates 441 are connected by an elastic connector. One end of the clamping plate 441 is limited to the sliding groove, and the inner side of the clamping plate 441 is provided with a cleaning surface relative to the side of the handrail. The movable shaft part 45 includes a plurality of movable shafts 451 arranged and rolling along the length of the handrail. A cleaning component is fitted on the surface of any movable shaft 451. The shaft power part 46 includes a power motor 461 mounted on the main body part 43 and a power shaft 462 driven by the power motor 461 and driving the movable shafts 451 to rotate. Specifically, two connecting plates 433 extend from the bottom of the main body 43 relative to the two ends of the movable shaft 451. Any movable shaft 451 is rotatably connected to the two connecting plates 433 through a bearing. The output shaft of the power motor 461 is connected to the power shaft 462. The power shaft 462 and the adjacent movable shaft 451 are driven by synchronous gears. The surface of the movable shaft 451 is covered with filamentous polyester to clean the handrail surface. The two ends of several movable shafts 451 are respectively fitted with guide belts 452 connected end to end. The power shaft 462 drives the adjacent movable shafts 451 to rotate. Several movable shafts 451 are driven to rotate synchronously through the interconnected guide belts 452.

[0045] In this embodiment, a scraper 453 is also provided above the foremost movable shaft 451. The scraper 453 is in close contact with the cleaning brush on the surface of the movable shaft 451 to scrape off dirt and dust from the surface of the movable shaft 451 that comes into contact with dirt first, thus avoiding the accumulation of too much dust on the surface of the movable shaft 451 due to long-term rolling cleaning. The scraper 453 can be disassembled for cleaning.

[0046] like Figure 3 As shown, the ladder wall cleaning component 3 includes a vertical cleaning roller 31 disposed on the side surface of the housing 1 facing the ladder wall and a vertical cleaning roller motor 32 disposed inside the housing 1 to drive the vertical cleaning roller 31 to rotate.

[0047] like Figure 1 As shown, the surface of the housing 1 is provided with an exhaust grid 15 directly opposite the air outlet of the exhaust motor 26. The gas drawn by the exhaust motor 14 is led out to the exhaust grid 15. A filter layer is provided between the air outlet of the exhaust motor 26 and the exhaust grid 15, and the filter layer is filled with cotton or activated carbon. When cleaning the stairs after disinfection, the dust collection box 25 can prevent the disinfection odor from spreading in the stairs.

[0048] The hospital stair cleaning device of this embodiment can simultaneously clean the stair treads, handrails, and the side walls between the treads and handrails. Based on the design of the elastic telescopic part, lifting rod, and handrail cleaning components, it is applicable to staircases with different tread heights and handrail sizes, thus having wider applicability. Multiple moving shafts are used to thoroughly clean and disinfect the tread surfaces. During the cleaning process, a dust collection box and exhaust motor absorb the dust stirred up by the horizontal cleaning rollers, effectively removing dust and disinfectant odors from the staircase, reducing the irritating smell emitted after cleaning and disinfection, and clearing away dust splashed during the cleaning process, preventing the pungent smell of dust from spreading during sweeping, thus further purifying the hospital staircase environment.

[0049] In this embodiment, a clamping structure is used to fix the handrail cleaning component to the stair handrail. By adjusting the rotation adjustment component, it can be ensured that the housing, lifting rod, and horizontal cleaning roller are vertically aligned with the stair steps. The angle of the rotation adjustment component is fixed by a locking ring. After the handrail cleaning component clamps onto the escalator handrail, it drives several moving shafts through the internal shaft power unit. At the same time, the moving shafts clean the surface of the stair handrail. The clamping plates on both sides of the handrail clamping part clean the sides of the handrail, so that the exposed surface of the handrail is cleaned. Furthermore, the handrail clamping part uses a spring to connect the two clamping plates, allowing the handrail clamping part to be applicable to escalator handrails of various specifications. The housing and tread cleaning components move along with the shaft of the handrail cleaning component. The horizontal cleaning roller cleans the stair tread simultaneously while moving. One end of the lifting rod is connected to the elastic telescopic part, and the other end is connected to the horizontal cleaning roller. As the handrail cleaning component moves upward, the horizontal cleaning roller is always pressed against the tread step by the elastic telescopic part inside the housing. This prevents the lifting rod and horizontal cleaning roller from being damaged by the pressure and drag of the tread step during movement. The device is more durable overall, and the tread cleaning component is suitable for tread steps of various heights and specifications based on the design of the elastic telescopic part.

[0050] In this embodiment, the inner cavity of the housing 1 is equipped with a control unit 11, a battery panel 12, and an electrical box 13. The battery panel 12, electrical box 13, horizontal cleaning roller motor 24, exhaust motor 26, vertical cleaning roller motor 32, start switch 431, and power motor 461 are all electrically connected to the control unit 11. Specifically, the battery panel 12 and electrical box 13 are electrically connected to the control unit 11 via conduits. The electrical box 13 is electrically connected to the horizontal cleaning roller motor 24 and exhaust motor 26 via spring wires. The spring wire connected to the horizontal cleaning roller motor 24 passes through the inner cavity of the lifting rod 22. The electrical box 13 is used to transfer the power from the battery panel 12 to the horizontal cleaning roller motor 24 via the control unit 11, ensuring power supply to the horizontal cleaning roller motor 24 and driving the horizontal cleaning roller 23 to rotate. A socket 16 is provided on one side of the housing 1, which is connected to the control unit 11. Through the socket 16, the battery panel 13 can be electrically connected to an external power source. Meanwhile, the housing 1 has a wiring port through which wires are passed to connect the control unit 11 and the start switch 431 respectively. The main body 43 has a recessed groove opposite to the start switch 431. The two side walls opposite to the groove are provided with clamping members 47 for clamping the start switch 431. The bottom of the start switch 431 has a first contact part for electrical connection. The bottom of the groove has a second contact part opposite to the first contact part. The start switch 431 is electrically connected to the control unit 11 through the wires of the wiring port on the housing 1. The power motor 461 forms a power circuit with the start switch 431 through the first contact part and the second contact part. The start switch 431 controls the start and stop of the cleaning device.

[0051] The start switch 431 of the present invention is detachably installed on the handrail cleaning component 4. When the handrail cleaning component 42 is clamped on the stair handrail, the start switch 431 is detached, which can avoid contact with the start switch 431 during the clamping process, which could lead to incorrect operation and accidents. In addition, after the start switch 431 is inserted into the main body 43, the start switch 431 needs to be pressed again to start the cleaning device, which has a double safety function.

[0052] In this embodiment, as Figure 8 As shown, multiple V-shaped storage slots 251 are arranged at intervals along the length of the dust collection box 25. A suction port facing the horizontal cleaning roller 23 is opened at the bottom of the dust collection box 25 between any adjacent V-shaped storage slots 251. An air guide pipe 252 is provided above the multiple V-shaped storage slots 251, which is directly opposite any suction port.

[0053] The air duct 252 evenly distributes the suction power of the exhaust motor 26 to each dust inlet. Dust sucked in by the exhaust motor 26 moves along the inclined edge of each V-shaped collection groove structure 251 and is finally collected into the V-shaped collection groove structure 251 by suction. The dust in the V-shaped collection groove structure 251 can be cleaned by removing the top cover 253. The air duct 252 is connected to the air outlet 254 of the dust collection box 25. The air outlet 254 extends into the lifting rod 22 to connect with the exhaust motor 26.

[0054] The above description is merely a specific embodiment of the present invention. It should be noted that any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the protection scope of the present invention.

Claims

1. A hospital staircase cleaning device, characterized in that, It includes a housing (1), a ladder surface cleaning component (2), a ladder wall cleaning component (3), and a handrail cleaning component (4). The ladder surface cleaning component (2) includes an elastic telescopic part (21), a lifting rod (22) connected to the elastic telescopic part (21) for elastic telescopic extension and retraction in the vertical direction, a horizontal cleaning roller (23) connected to one end of the lifting rod (22) for cleaning the ladder surface, a horizontal cleaning roller motor (24) installed in the lifting rod (22) for driving the horizontal cleaning roller (23) to rotate, a dust collection box (25) located above the horizontal cleaning roller (23), and an exhaust motor (26) connected to the dust collection box (25). The elastic telescopic part (21) and the exhaust motor (26) are located inside the housing (1). The ladder wall cleaning component (3) includes a vertical cleaning roller (31) disposed on the side surface of the housing (1) facing the ladder wall and a vertical cleaning roller motor (32) disposed inside the housing (1) to drive the vertical cleaning roller (31) to rotate. The handrail cleaning component (4) includes a rotation adjustment assembly (41) connected to the top of the housing (1) and a handrail cleaning component (42) connected to the rotation adjustment assembly (41). The handrail cleaning component (42) includes a main body (43) and a handrail clamping part (44), a moving shaft part (45), and a shaft power part (46) connected to the main body (43). A start switch (431) is detachably installed on the main body (43). The handrail clamping part (44) includes components along the width direction of the handrail. Two clamping plates (441) connected to both ends of the main body (43) for clamping and cleaning the sides of the handrail; the movable shaft part (45) includes a plurality of movable shafts (451) arranged and rolling along the length of the handrail; a cleaning component is sleeved on the surface of any of the movable shafts (451); the shaft power part (46) includes a power motor (461) mounted on the main body (43) and a power shaft (462) driven by the power motor (461) and causing the movable shafts (451) to rotate. The surface of the housing (1) is provided with an exhaust grid (15) facing the air outlet of the exhaust motor (26). The inner cavity of the housing (1) is provided with a control unit (11), a battery panel (12) and an electrical box (13). The battery panel (12), electrical box (13), horizontal cleaning roller motor (24), exhaust motor (26), vertical cleaning roller motor (32), start switch (431), and power motor (461) are all electrically connected to the control unit (11). The bottom of the housing (1) is provided with an opening relative to the lifting rod (22). The top of the lifting rod (22) is connected to a limiting frame (221) and the limiting frame (221) is limited to the opening. The elastic telescopic part (21) includes several connecting parts. A spring, one end of which is connected to the inner wall of the housing (1) and the other end is connected to the limiting frame (221). The rotation adjustment assembly (41) includes a first rotating block (411) fixedly connected to the top of the housing (1) and a second rotating block (412) fixedly connected to the top of the main body (43). The first rotating block (411) and the second rotating block (412) are rotatably connected by a transverse locking screw (413). One end of the locking screw (413) is connected to the second rotating block (412), and the other end passes through the first rotating block (411). The end of the locking screw (413) that passes through the first rotating block (411) is threadedly connected to a locking ring (414).

2. The hospital staircase cleaning device as described in claim 1, characterized in that, Two connecting plates (433) extend from the bottom of the main body (43) relative to the two ends of the movable shaft (451). Any one of the movable shafts (451) is rotatably connected to the two connecting plates (433) through a bearing. The output shaft of the power motor (461) is connected to the power shaft (462). The power shaft (462) and the adjacent movable shaft (451) are driven by synchronous gears.

3. The hospital staircase cleaning device as described in claim 1, characterized in that, The lifting rod (22) is hollow. The exhaust motor (26) is connected to the dust collection box (25) through the inside of the lifting rod (22). One end of the dust collection box (25) is fixedly connected to the lifting rod (22), and the other end is fixedly connected to a vertical plate (27). At the same time, the other end of the lifting rod (22) is rotatably connected to the vertical plate (27) through a bearing. The bottom of the lifting rod (22) and the bottom of the vertical plate (27) respectively form a groove on the trapezoidal surface. The bottom of the groove is connected to a pressing plate through a spring. An auxiliary wheel (28) with the same axial direction as the horizontal cleaning roller (23) is installed at the bottom of the pressing plate.

4. The hospital staircase cleaning device as described in any one of claims 1-3, characterized in that, The electrical box (13) is electrically connected to the horizontal cleaning roller motor (24) and the exhaust motor (26) respectively via spring wires. The spring wire connected to the horizontal cleaning roller motor (24) passes through the inner cavity of the lifting rod (22).

5. The hospital staircase cleaning device as described in claim 1, characterized in that, The main body (43) has grooves at both ends relative to the two clamping plates (441). One end of the clamping plate (441) is slidably installed in the groove, and the two clamping plates (441) are connected by an elastic connector.

6. The hospital staircase cleaning device according to any one of claims 1-3, characterized in that, The housing (1) has a wiring port, through which wires are respectively connected to the control unit (11) and the start switch (431). The main body (43) has a recessed placement groove opposite to the start switch (431). The two side walls opposite to the placement groove are provided with clamping members (47) for clamping the start switch (431). The bottom of the start switch (431) has a first contact part for electrical connection. The bottom of the placement groove has a second contact part opposite to the first contact part. The power motor (461) is electrically connected to the start switch (431) through the first contact part and the second contact part.

7. The hospital staircase cleaning device as described in any one of claims 1-3, characterized in that, The dust collection box (25) has multiple V-shaped storage slot structures (251) arranged at intervals along its length. Between any two adjacent V-shaped storage slot structures (251), a dust suction port is opened at the bottom of the dust collection box (25) facing the horizontal cleaning roller (23). Above the multiple V-shaped storage slot structures (251), an air guide pipe (252) is provided, which is directly opposite any of the dust suction ports. The air guide pipe (252) is connected to the air outlet of the dust collection box (25).

8. The hospital staircase cleaning device as described in any one of claims 1-3, characterized in that, A filter layer is provided between the air outlet of the exhaust motor (26) and the exhaust grid (15), and the filter layer is filled with cotton or activated carbon.

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