Floor washing machine with power assisting structure

Abstract

The utility model discloses a scrubber with a power-assisted structure. The scrubber comprises a control handle, a connecting handle, a case, a chassis, a rear main wheel and a brush disc, the upper end of the connecting handle is connected with the control handle, and the lower end is hinged with the case through a hinge; the bottom of the case is installed on a chassis, a brush disc is arranged on the front side of the bottom of the chassis, and rear main wheels are arranged on the rear side of the bottom of the chassis. The chassis is connected with the brush disc through a power-assisted structure; the power assisting structure comprises a U-shaped mounting seat and a limiting adjusting nut; positioning open holes are formed in the two sides of the U-shaped installation base and hinged to hole positions in the side edges of the base plate through pin shafts, a strip-shaped through hole is formed in the U-shaped installation base, a limiting adjusting nut is arranged on the base plate, a screw of the limiting adjusting nut is located in the through hole, and the brush plate is installed at the bottom of the U-shaped installation base. The chassis is provided with the power-assisted structure, the brush disc is in contact with the ground, and partial friction force between the brush disc and the ground is converted into forward traction force in the horizontal direction, so that cleaning is propelled in a power-assisted manner, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to cleaning equipment, in particular to a floor scrubber with a power-assisting structure. Background Art

[0002] Floor scrubbers are mainly used for cleaning hard surfaces, such as shopping malls, hospitals, workshops, badminton halls, basketball halls, schools, restaurants, hotels and other places. Floor scrubbers can scrub and clean the floor and collect the wastewater generated by scrubbing. They have high cleaning efficiency and cleanliness.

[0003] However, the power that drives the floor scrubbers currently comes entirely from manpower. Over time, hands and people get tired easily, which affects the cleaning efficiency and makes it difficult to meet the market's usage needs. Summary of the Invention

[0004] In view of the above existing technical problems, the present invention provides a floor scrubber with a power-assisting structure. The floor scrubber has a traction-assisting structure to drive the machine to clean, thereby reducing the workload of manpower.

[0005] The sprocket wheel that is located at the top of the U-shaped frame is provided with a U-shaped handle, and the sprocket wheel that is located at the bottom of the U-shaped frame is provided with a brush disc.

[0006] The utility model further has a pair of mounting holes for the brush discs at the bottom of the U-shaped mounting seat, and a pair of brush discs are provided at the bottom of the U-shaped mounting seat, and the brush discs are mounted on the U-shaped mounting seat through flanges.

[0007] The utility model further provides an elastic locking mechanism on the connecting handle; the elastic locking mechanism includes a handlebar, a carrying handle, a wing-shaped buckle, a spring, an axle pin and a connecting piece; a groove is formed on the handlebar, the axle pin is inserted into the center of the wing-shaped buckle, a spring is sleeved on the bottom of the axle pin, the axle pin is arranged in the groove, and is fixed by a screw after being pressed by a pressing sheet, the other end of the spring abuts against the internal baffle of the groove, and the pressing parts on both sides of the wing-shaped buckle are exposed outside the handlebar; the carrying handle is fixed on the handlebar; the connecting piece is arranged on the chassis, and a buckle groove is formed on the connecting piece, and a curved hook is formed at the bottom of the wing-shaped buckle, and the curved hook is hooked on the buckle groove and the handlebar is locked by the action of the spring.

[0008] The utility model further provides a squeegee mechanism at the bottom of the chassis; the squeegee mechanism includes a squeegee, a swing arm, an auxiliary wheel, a plum nut and a screw; the swing arm is connected to the rotating shaft of the rear main wheel, and the lower part of the swing arm is connected to the squeegee through the plum nut and the screw; an auxiliary wheel is installed on both sides of the rear of the squeegee.

[0009] The utility model further provides a clean water tank and a sewage tank on the chassis; the water suction port of the sewage tank is connected to the water collecting chamber of the squeegee through a water suction hose.

[0010] The utility model further provides an exhaust system on the chassis; the exhaust system includes a vacuum motor seat, a vacuum motor, a vacuum motor cover and a plastic tube; the vacuum motor is installed on the chassis through the vacuum motor seat, the upper part of the vacuum motor is connected to the sewage tank through a silicone tube and a plastic tube, and the vacuum motor is sealed by a sealing ring and a vacuum motor cover.

[0011] The utility model further provides a float system in the sewage tank; the float system includes a float cover, a T-tube, a float and an air suction pipe; the lower end of the air suction pipe is connected to the plastic pipe, one end of the float is connected to the air suction pipe, and the other end is connected to the T-tube, and a float cover is provided on the T-tube.

[0012] Furthermore, the utility model provides that the brush disc is provided with three layers of brush rings, and the brush rings are concentrically arranged from the inside to the outside and have gaps between them.

[0013] The utility model further comprises a battery and a controller provided in the chassis, an electromagnetic valve and a drive motor provided on the chassis, and the drive motor is connected to the drive brush plate; the battery is electrically connected to the vacuum motor, the electromagnetic valve, the drive motor and the controller.

[0014] Furthermore, the utility model provides a front universal auxiliary wheel in the middle of the front side of the chassis.

[0015] The beneficial effects of adopting the above technical solution are as follows: the chassis of the utility model is provided with a power-assisting structure, and the U-shaped mounting seat can be swung within the range of the strip-shaped through-hole to adjust the inclination angle formed by the brush disc and the ground. The position of the U-shaped mounting seat can be fixed by twisting the limit adjustment nut. In this way, part of the friction between the brush disc and the ground is converted into a force pulling forward in the horizontal direction, thereby achieving the effect of power-assisting cleaning and reducing labor intensity. At the same time, the inclination angle of the brush disc and the ground can be adjusted by swinging the U-shaped mounting seat. After adjusting to the appropriate angle, the limit adjustment nut is twisted to fix the U-shaped mounting seat, thereby achieving the purpose of adjusting the power-assisting amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the split structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the utility model after assembly;

[0018] Figure 3 This is a schematic diagram of the structure of the power assist system of the utility model;

[0019] Figure 4 This is a schematic diagram of the installation of the utility model power assist system;

[0020] Figure 5 This is a schematic diagram of the working state of the utility model power assist system;

[0021] Figure 6 This is a disassembled schematic diagram of the elastic locking mechanism of the utility model;

[0022] Figure 7 This is a schematic diagram of the assembly of the elastic locking mechanism of the utility model;

[0023] Figure 8 This is a working diagram of the elastic locking mechanism of the utility model;

[0024] Figure 9 This is a structural diagram of the head-pulling mechanism of the utility model;

[0025] Figure 10 This is a schematic diagram of the structure of the ventilation system of the utility model;

[0026] Figure 11 This is a structural diagram of the float system of the utility model. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below with reference to the accompanying drawings.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] An embodiment of the present invention: Figure 1 and Figure 2 As shown, a floor scrubber with a power-assisted structure includes a control handle 1, a connecting handle 2, a chassis 4, a chassis 7, a rear main wheel 10, and a brush plate 21; the upper end of the connecting handle 2 is connected to the control handle 1, and the lower end is hinged to the chassis 4 through a hinge 3; the bottom of the chassis 4 is mounted on the chassis 7, and the front side of the bottom of the chassis 7 is provided with a brush plate 21, and the rear side is provided with a rear main wheel 10; the chassis 7 is connected to the brush plate 21 through the power-assisted structure. Figures 3 to 5 As shown, the power-assisting structure includes a U-shaped mounting seat 18 and a limit adjustment nut 1802; there are positioning openings on both sides of the U-shaped mounting seat 18, and the positioning openings are hinged to the side holes of the chassis 7 through a pin shaft 1803. There is a strip through hole 1801 on the U-shaped mounting seat 18, and a limit adjustment nut 1802 is provided on the chassis 7. One end of the screw of the limit adjustment nut 1802 is fixed on the chassis 7, and the rod body is in the strip through hole 1801. The U-shaped mounting seat 18 can swing within the range of the strip through hole to adjust the inclination angle formed by the brush plate 21 and the ground. Twisting the limit adjustment nut 1802 can fix the U-shaped mounting seat 18.

[0030] The chassis of the present invention is equipped with a power-assisting structure that can adjust the inclination angle formed by the brush disc 21 and the ground. Part of the friction between the brush disc 21 and the ground is converted into a horizontal forward pulling force, thereby achieving a power-assisting cleaning effect and reducing labor intensity. According to the laws of physics, the formula for calculating sliding friction is: f = μN. Here, μ is the dynamic friction factor, also known as the sliding friction coefficient, and N is the positive pressure. The parameter μ is constant on the same ground surface, so the magnitude of the friction force can be affected by changing the magnitude of the positive pressure N. According to the formula for pressure and force N = PS, we can know that methods for increasing pressure N include increasing pressure P while keeping the force area S constant, or increasing the force area S while keeping pressure P constant. Methods for reducing pressure N include reducing pressure P while keeping the force area S constant, or increasing the force area S while keeping pressure P constant. In the system with the auxiliary wheels and rear main wheels, pressure P is a constant parameter. Therefore, simply changing the size of the contact area S can change the magnitude of the positive pressure N, thereby achieving the purpose of adjusting the friction force f and thus the power-assisting effect.

[0031] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 3 As shown, the bottom of the U-shaped mounting base 18 has a pair of mounting holes for a brush disc 21. A pair of brush discs 21 are provided at the bottom of the U-shaped mounting base 18. The brush discs 21 are mounted on the U-shaped mounting base 18 through flanges 19. The two brush discs 21 rotate in opposite directions to offset the deflection force.

[0032] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 6 、 Figure 7 and Figure 8 As shown, the connecting handle 2 is provided with an elastic locking mechanism, which includes a handle bar 201, a handle 202, a wing-shaped buckle 203, a spring 204, an axle pin 205 and a connecting piece 13; a groove 208 is formed on the handle bar 201, the axle pin 205 is inserted into the center of the wing-shaped buckle 203, a spring 204 is sleeved on the bottom of the axle pin 205, the axle pin 205 is set in the groove 208, and is fixed by the screw 206 after the pressing piece 207 is pressed, and the other end of the spring 204 is in contact with the internal baffle of the groove 208, and the pressing parts on both sides of the wing-shaped buckle 203 are exposed outside the handle bar 201; the handle 202 is fixed to the handle bar 201; the connecting piece 13 is set on the chassis 7, and a buckle groove 1301 is formed on the connecting piece, and a curved hook is formed at the bottom of the wing-shaped buckle 203, which is hooked on the buckle groove 1301 and locked by the spring 204. When the connecting handle 2 is rotated downward to a horizontal position, the hook at the bottom of the wing-shaped buckle 203 is hooked on the buckle groove 1301, and the spring 204 acts to lock the handle 201. At this time, the scrubber can be lifted by the handle 202. To unlock, press the wing-shaped buckle 203 and push it backward, so that the shaft pin 205 overcomes the resistance of the spring 204, and the handle 201 is separated from the connecting member 13. The handle 201 can then be rotated upward to rotate the connecting handle 2 to a vertical working position.

[0033] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 9As shown, the bottom of the chassis 7 is provided with a squeegee mechanism 22; the squeegee mechanism comprises a squeegee 2201, a swing arm 2202, auxiliary wheels 2203, a plum nut 2204, and a screw 2205. The swing arm 2202 is connected to the rotating shaft of the rear main wheel 10, and the lower portion of the swing arm 2202 is connected to the squeegee 2201 via the plum nut 2204 and screw 2205. An auxiliary wheel 2203 is mounted on either side of the rear of the squeegee 2201. The auxiliary wheels 2203 help the squeegee 2201 remain upright, thereby achieving better water absorption. The swing arm 2202 is mounted on the axle of the rear main wheel 10, allowing the mechanism to swing up and down.

[0034] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 1 As shown, the chassis 7 is provided with a clean water tank 12 and a sewage tank 9. The clean water tank 12 has a clean water tank cover 11 for replacing clean water. The water intake of the sewage tank 9 is connected to the water collection chamber of the drain head mechanism 22 via a suction hose 16. The sewage tank 9 is provided with a sewage tank cover 8 on top and a sewage drain pipe on the rear.

[0035] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 1 and Figure 10 As shown, the chassis 7 is equipped with an exhaust system 15, which includes a vacuum motor base 1506, a vacuum motor 1505, a vacuum motor cover 1503, and a plastic tube 1501. The vacuum motor 1505 is mounted on the chassis 7 via the vacuum motor base 1506. The upper portion of the vacuum motor 1505 is connected to the sewage tank 9 via a silicone tube 1502 and a plastic tube 1501. The vacuum motor 1505 is sealed by a sealing ring 1504 and a vacuum motor cover 1503. When the vacuum motor 1505 is activated, air is drawn in from the top and exhausted from the motor's periphery. The various components fit together concentrically and tightly, greatly reducing the size of the machine, making it smaller and lighter. This system also ensures the exhaust system's tightness and improves water absorption efficiency.

[0036] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 11As shown, the sewage tank 9 is equipped with a float system 14; the float system includes a float cover 1401, a T-tube 1402, a float 1403, and a suction pipe 1404. The lower end of the suction pipe 1404 is connected to a plastic pipe 1501. The float 1403 is connected to the suction pipe 1404 at one end and to the T-tube 1402 at the other end. The float cover 1401 is mounted on the T-tube 1402. The float system 14 is built into the sewage tank and tightly covered by the sewage tank cover 8. When the water level is low, the float 1403 falls. When the vacuum motor 1505 is activated, air is drawn into the vacuum motor 1505 through six small holes around the T-tube 1402 and then discharged from the vacuum motor. This creates a negative pressure in the sewage tank 9, allowing the scooping mechanism 22 to suck up sewage from the ground. As the water level rises, the float 1403 is lifted. When it reaches a certain height, the top of the float 1403 touches the lower part of the T-tube 1402, thereby closing the air intake and preventing sewage from being sucked into the vacuum motor 1505, thereby providing good protection for the motor.

[0037] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 3 As shown, the brush disc 21 is provided with three layers of brush rings, which are concentrically arranged from the inside to the outside and have gaps between them. The brush rings are composed of multiple plastic fiber brushes, and the multiple brushes are evenly distributed circumferentially.

[0038] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 1 As shown, a battery 6 and a controller 5 are provided in the chassis 4, and a solenoid valve 23 and a drive motor 17 are provided on the chassis 7, and the drive motor 17 is connected to the drive brush plate 21; the battery 6 is electrically connected to the vacuum motor 1505, the solenoid valve 23, the drive motor 17, and the controller 5 to supply power to each component.

[0039] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 1 and Figure 3 As shown, a front universal auxiliary wheel 20 is provided in the middle of the front side of the chassis 7. During travel, the front universal auxiliary wheel 20 provides guidance, while the rear main wheels 10 enable the floor scrubber to move. The brush plate 21, rear main wheels 10, and front universal auxiliary wheels 20 jointly bear the machine's pressure.

[0040] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 2As shown, a recessed position for installing the hinge 3 is provided on the top of the chassis 4. The hinge 3 is installed in the recessed position of the chassis 4 to facilitate the installation and positioning of the connecting handle 2, and save space when the connecting handle 2 is rotated downward and folded.

[0041] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the main technical solution of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A floor scrubber with a power-assisted structure, comprising a control handle, a connecting handle, a chassis, a chassis, rear main wheels, and a brush plate; the upper end of the connecting handle is connected to the control handle, and the lower end is hinged to the chassis via a hinge; the bottom of the chassis is mounted on the chassis, the brush plate is provided on the front side of the bottom of the chassis, and the rear main wheels are provided on the rear side; It is characterized by: The chassis is connected to the brush plate through a power-assisting structure; the power-assisting structure includes a U-shaped mounting seat and a limit adjustment nut; there are positioning openings on both sides of the U-shaped mounting seat, and the positioning openings are hinged to the side holes of the chassis through pins. There is a strip through hole on the U-shaped mounting seat, and a limit adjustment nut is provided on the chassis. One end of the screw of the limit adjustment nut is fixed to the chassis, and the rod body is in the strip through hole. The U-shaped mounting seat can swing within the range of the strip through hole to adjust the inclination angle formed by the brush plate and the ground. Twisting the limit adjustment nut can fix the U-shaped mounting seat.

2. The floor scrubber with a power-assisting structure according to claim 1, characterized in that: A pair of brush plate mounting holes are provided at the bottom of the U-shaped mounting seat. A pair of brush plates are provided at the bottom of the U-shaped mounting seat. The brush plates are mounted on the U-shaped mounting seat through flange plates.

3. A floor scrubber with a power-assisting structure according to claim 1 or 2, characterized in that: An elastic locking mechanism is provided on the connecting handle; the elastic locking mechanism includes a handlebar, a carrying handle, a wing-shaped buckle, a spring, an axle pin and a connecting piece; a groove is formed on the handlebar, the axle pin is inserted into the center of the wing-shaped buckle, a spring is sleeved on the bottom of the axle pin, the axle pin is set in the groove, and is fixed with a screw after being pressed by a pressing sheet, and the other end of the spring is in contact with the internal baffle of the groove, and the pressing parts on both sides of the wing-shaped buckle are exposed outside the handlebar; the carrying handle is fixed on the handlebar; the connecting piece is provided on the chassis, and a buckle groove is formed on the connecting piece, and a curved hook is formed at the bottom of the wing-shaped buckle, and the curved hook is hooked on the buckle groove and the handlebar is locked by the action of the spring.

4. A floor scrubber with a power-assisting structure according to claim 1 or 2, characterized in that: A squeegee mechanism is provided at the bottom of the chassis; the squeegee mechanism includes a squeegee, a swing arm, an auxiliary wheel, a plum nut and a screw; the swing arm is connected to the rotating shaft of the rear main wheel, and the lower part of the swing arm is connected to the squeegee through the plum nut and the screw; an auxiliary wheel is installed on both sides of the rear of the squeegee.

5. A floor scrubber with a power-assisting structure according to claim 1 or 2, characterized in that: A clean water tank and a sewage tank are provided on the chassis, and a water suction port of the sewage tank is communicated with the water collecting cavity of the squeegee through a water suction hose.

6. The floor scrubber with a power-assisting structure according to claim 5, characterized in that: An exhaust system is provided on the chassis; the exhaust system includes a vacuum motor seat, a vacuum motor, a vacuum motor cover and a plastic tube; the vacuum motor is installed on the chassis through the vacuum motor seat, the upper part of the vacuum motor is connected to the sewage tank through a silicone tube and a plastic tube, and the vacuum motor is sealed by a sealing ring and a vacuum motor cover.

7. The floor scrubber with a power-assisting structure according to claim 6, characterized in that: A float system is provided in the sewage tank; the float system includes a float cover, a T-tube, a float and an air suction pipe; the lower end of the air suction pipe is connected to the plastic pipe, one end of the float is connected to the air suction pipe, and the other end is connected to the T-tube, and a float cover is provided on the T-tube.

8. A floor scrubber with a power-assisting structure according to claim 1 or 2, characterized in that: The brush plate is provided with three layers of brush rings, which are concentrically arranged from the inside to the outside and have gaps between them.

9. The floor scrubber with a power-assisting structure according to claim 6, characterized in that: A battery and a controller are provided in the chassis, a solenoid valve and a drive motor are provided on the chassis, and the drive motor is connected to the drive brush plate; the battery is electrically connected to the vacuum motor, the solenoid valve, the drive motor and the controller.

10. A floor scrubber with a power-assisting structure according to claim 1 or 2, characterized in that: A front universal auxiliary wheel is arranged in the middle of the front side of the chassis.

Images