CN211796250U - Centrifugal force and downforce offset structure of floor scrubber chassis - Google Patents

Abstract

The utility model discloses a centrifugal force and downward force counteracting structure of a floor washing machine underframe, which comprises a bottom plate and a cover, wherein the outer top of the cover is fixed with a middle rotary seat for connecting an operating rod of the floor washing machine through bolts, the cover is provided with a battery box with an open top, a rechargeable lithium battery is placed in the battery box, a vacuumizing motor component, a brush disc motor and a water pump which are electrically connected with the rechargeable lithium battery are arranged at the upper part of the bottom plate, an output shaft of the brush disc motor downwards penetrates through the bottom plate and then is connected with a disc brush fixing disc in a transmission way, a brush disc is fixed at the lower part of the disc brush fixing disc, an air exhaust pipeline of the vacuumizing motor component is connected to an air exhaust pipe connector of a floor washing machine sewage tank, the lower part of the bottom plate is provided with at least one pair of rotating casters through a wheel carrier, a connecting line between the two rotating casters penetrates through the center of the brush disc, and the rolling direction of the rotating casters is the same as the rotating direction of the brush disc; has the advantages that: the structure is improved, the rotating centrifugal force of the floor washing machine is offset, and the gravity of the downward pressing is offset due to the addition of the spring.

Description

Centrifugal force and downforce offset structure of a floor scrubber chassis

technical field

The utility model relates to an improvement on a floor washing machine, in particular to a centrifugal force and downforce offset structure of a floor washing machine chassis.

Background technique

The floor scrubber is a cleaning machine and equipment suitable for cleaning hard floors. It is a cleaning machine and equipment that sprays water, brushes the floor, absorbs sewage, and takes the sewage away from the site. It has the advantages of environmental protection, energy saving, and high efficiency. In real life, washing machines have been widely used in large airports, supermarkets, factories, especially some stations, office areas, hotels, docks, ships, workshops, warehouses, schools, hospitals, hotels, market stores, etc. In places with hard floors, this type of cleaning equipment replaces manpower and solves the work concept of manpower labor has been deeply rooted in the hearts of the people.

The existing floor scrubbers are mainly large-scale floor scrubbers, and are mainly used in scenes with relatively large areas. The floor scrubbers are equipped with clean water tanks, sewage tanks and power equipment as a whole. Generally, brushes are installed at the front of the machine. Because the integral washing machine is now relatively large, heavy, too large and heavy, it is not easy to move flexibly, it can only be used for cleaning and cleaning in the environment of commercial use area, and cannot clean small spaces or households and small The space environment of the shop area.

The technical shortcomings of the existing large-scale washing machine are: 1. The large-scale washing machine is too large, and the geographical environment of use is limited. 2. The movement is not very flexible, and the cleaning of the small space environment and corners is not in place, and the use environment is limited. 3. The weight of the existing small washing machine is also relatively heavy, and it cannot completely solve the functions of light weight, flexible control and convenient use. When rotating, it will generate centrifugal force, which is difficult to control. 4, the noise is large.

Utility model content

The technical problem to be solved by the utility model is to aim at the deficiencies of the prior art, and to provide a centrifugal force and downforce counteracting structure of the bottom frame of the washing machine.

In order to achieve the above purpose, the measures taken by the present utility model:

A structure for offsetting centrifugal force and downforce of a floor washing machine chassis, comprising a bottom plate and a machine cover, the bottom plate is fixed in the machine cover by screws, and the outer top of the machine cover is fixed with a middle rotating seat for connecting the operating rod of the washing machine by bolts, The cover is provided with a battery box with an opening at the top. The battery box is filled with a rechargeable lithium battery. The upper part of the bottom plate is equipped with a vacuum motor assembly, a brush motor and a water pump that are electrically connected to the rechargeable lithium battery. The output of the brush motor After the shaft passes downward through the bottom plate, a disc brush fixing disc is connected to the drive. The lower part of the disc brush fixing disc is fixed with a brush disc. The suction pipe of the vacuum motor assembly is connected to the suction pipe joint of the sewage tank of the washing machine. The lower part of the bottom plate is installed with at least one pair of swivel casters through the wheel frame, the connection line between the pair of swivel casters passes through the center of the brush plate, and the rolling direction of the swivel casters is the same as the rotation direction of the brush plate;

The wheel frame includes a lower wheel frame and an upper wheel frame fixedly connected to the lower part of the bottom plate, the rotating casters are rotatably mounted on the lower wheel frame, and the lower wheel frame is slidably connected to the upper wheel frame through a guide column on the lower wheel frame, and the guide column is slidably connected to the upper wheel frame. The upper sleeve is connected with a shock-absorbing spring, the upper end of the shock-absorbing spring is pressed against the upper wheel frame, and the lower end is pressed against the lower wheel frame;

The lower part of the bottom plate is fixed with a brush disc shield, the brush disc shield is bent into an arc structure, a skirt brush is fixed on the outside of the brush disc shield of the arc structure, and the side wall of the machine cover close to the vacuum motor assembly is provided with several air outlets;

A charging port electrically connected to the rechargeable lithium battery is installed on one side of the cover, and a battery cover is clamped on the opening of the battery box;

A rear wheel is installed at the upper and rear of the cover through a rear wheel frame, and the rear wheel frame and the top surface of the cover are inclined at an angle;

The middle swivel base is bent upward to form an upper U-shaped frame and downward to form a lower U-shaped frame. The upper U-shaped frame is used to rotate and connect the operating rod of the washing machine, and the lower end of the lower U-shaped frame is bent outward. Fold out a fixing part, and fix the middle swivel base on the cover by bolts passing through the through holes on the fixing part;

A plane bearing is installed between the output shaft of the brush disk motor and the disk brush fixed disk;

The bottom plate is provided with a suction cup body assembly through bolts, the suction cup body assembly is connected to the sewage suction port of the sewage tank of the washing machine, and the suction cup body assembly is formed into an arc structure opposite to the brush plate shield;

The vacuuming motor assembly consists of a vacuuming motor which is put into a closed plastic box, and the gap between the inner wall of the plastic box and the vacuuming motor is filled with sound insulation material.

The beneficial effects of the utility model are: practical, low production cost, novel structure, good mute effect, light washing, easy operation, improved structure, offset the centrifugal force of the rotation of the washing machine, increase of spring, offset the gravity of the downward pressure .

Description of drawings

Figure 1 is a schematic diagram of the exploded structure of the utility model.

FIG. 2 is a schematic diagram of the external structure of the utility model.

FIG. 3 is a schematic diagram of the disassembled structure of the wheel frame installation of the present invention.

FIG. 4 is a schematic structural diagram of the washing machine applied by the utility model.

Detailed ways

A structure for offsetting centrifugal force and downforce of the chassis of a washing machine, comprising a bottom plate 1 and a cover 17, the bottom plate 1 is fixed in the cover 17 by screws, and the outer top of the cover 17 is fixed by bolts to connect the operating rod of the washing machine. The middle rotating seat 6, the cover 17 is provided with a battery box 17-1 with a top opening, the battery box 17-1 is filled with a rechargeable lithium battery 8, and the upper part of the bottom plate 1 is installed with a rechargeable lithium battery 8. The vacuum motor assembly 2, the brush motor 3 and the water pump 4, the output shaft of the brush motor 3 passes downward through the bottom plate 1 and is connected to a disc brush fixing disc 11, and the lower part of the disc brush fixing disc 11 is fixed with a brush disc 12, The suction pipe of the vacuum pumping motor assembly 2 is connected to the suction pipe joint of the sewage tank of the washing machine. The lower part of the bottom plate 1 is installed with at least one pair of swivel casters 16 through the wheel frame 15. The connection between the pair of swivel casters 16 Passing through the center of the brush plate 12 , the rolling direction of the swivel caster 16 is the same as the rotation direction of the brush plate 12 .

The main point of the improvement of the technical solution of the present application is that at least one pair of swivel casters 16 is added to the lower part of the bottom plate 1 (a pair of swivel casters 16 includes two), or more pairs. A pair of swivel casters 16 is evenly centered on the center of the brush plate 12 distributed. As shown in Figure 1, Figure 2 and Figure 4, during the scrubbing process, if the casters 16 are not rotated, a centrifugal force will be generated when the brush plate 12 rotates and contacts the ground, and the entire scrubber will move to one side. People need to twist the washing machine with a force outside the working range to make the washing machine move according to the normal trajectory, and the operation is very laborious. Through the improvement of this solution (adding the rotating casters 16), during the washing process, the rotating casters 16 rotate along with it, which can offset the centrifugal force generated when the brush plate 12 rotates, and control the entire washing machine more lightly.

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, by adding a damping spring 21 (the damping spring 21 can be multiple) on the wheel frame 15 of the swivel caster 16, the washing machine can be operated to clean the ground. When the washing machine moves up and down, the shock-absorbing spring 21 expands and contracts up and down. With the difference in the weight of the washing machine and the elastic force of the spring itself, the downward pressure (ie gravity) of the brush plate 12 on the ground on the entire washing machine can be automatically adjusted, that is, through the shock-absorbing spring 21 Adjust or offset the downforce of the entire scrubber on the brush plate 12, making the scrubber more flexible and easy to operate.

The wheel frame 15 includes a lower wheel frame 15-1 and an upper wheel frame 15-2 fixedly connected to the lower part of the bottom plate 1. The rotating casters 16 are rotatably mounted on the lower wheel frame 15-1, and the lower wheel frame 15-1 passes through the lower wheel frame 15-1. The guide column 15-3 on the frame 15-1 is slidably connected to the upper wheel frame 15-2, and a shock-absorbing spring 21 is sleeved on the guide column 15-3, and the upper end of the shock-absorbing spring 21 is pressed against the upper wheel frame 15-2. , The lower end is pressed on the lower wheel frame 15-1. Usually, each lower wheel frame 15-1 is provided with two left and right damping springs 21.

The lower part of the bottom plate 1 is fixed with a brush disc shield 13, the brush disc shield 13 is bent into an arc structure, the outer side of the brush disc shield 13 with the arc structure is fixed with a skirt brush 14, and the cover 17 is close to the vacuum motor assembly A number of air outlets 17-2 are opened on the side wall of 2.

A charging port 5 electrically connected to the rechargeable lithium battery 8 is installed on one side of the cover 17, and a battery cover 7 is clamped on the opening of the battery box 17-1.

A rear wheel 18 is installed at the upper and rear of the machine cover 17 through a rear wheel frame 19 , and the rear wheel frame 19 and the top surface of the machine cover 17 are inclined at an angle.

The middle rotating seat 6 is bent upward to form an upper U-shaped frame 6-1, and is bent downward to form a lower U-shaped frame 6-2. The upper U-shaped frame 6-1 is used to rotate and connect the operating lever of the washing machine. , a fixing part 6-3 is bent outward from the lower end of the lower U-shaped frame 6-2, and the bolts pass through the through holes on the fixing part 6-3 to fix the middle rotating seat 6 on the cover 17.

A plane bearing 10 is installed between the output shaft of the brush disc motor 3 and the disc brush fixing disc 11 .

The bottom plate 1 is provided with a suction cup body assembly 9 through bolts, and the suction cup body assembly 9 is connected to the sewage suction port of the sewage tank of the washing machine. .

The described vacuuming motor assembly 2 consists of a vacuuming motor which is put into a hermetic plastic box, and the gap between the inner wall of the plastic box and the vacuuming motor is filled with sound insulation material.

Claims (9)

1. A centrifugal force and downward pressure counteracting structure of a floor washing machine chassis comprises a bottom plate (1) and a cover (17), wherein the bottom plate (1) is fixed in the cover (17) through screws, a middle rotary seat (6) connected with a floor washing machine operating rod is fixed at the outer top of the cover (17) through bolts, a battery box (17-1) with an opening at the top is arranged on the cover (17), a rechargeable lithium battery (8) is placed in the battery box (17-1), a vacuum pumping motor component (2) electrically connected with the rechargeable lithium battery (8), a brush disc motor (3) and a water pump (4) are installed at the upper part of the bottom plate (1), an output shaft of the brush disc motor (3) downwards penetrates through the bottom plate (1) and then is connected with a disc brush fixing disc (11) in a transmission manner, a brush disc (12) is fixed at the lower part of the disc brush fixing disc (11), and an air suction pipeline of the vacuum pumping motor component (2), the method is characterized in that: at least one pair of rotating casters (16) is arranged on the lower part of the bottom plate (1) through a wheel carrier (15), a connecting line between the pair of rotating casters (16) passes through the center of the brush disc (12), and the rolling direction of the rotating casters (16) is the same as the rotating direction of the brush disc (12).

2. The structure of claim 1, wherein the structure is adapted to counteract the centrifugal force and downward pressure of the chassis of a floor washing machine, and comprises: the wheel frame (15) comprises a lower wheel frame (15-1) and an upper wheel frame (15-2) fixedly connected with the lower part of the bottom plate (1), the rotating caster (16) is rotatably installed on the lower wheel frame (15-1), the lower wheel frame (15-1) is slidably connected to the upper wheel frame (15-2) through a guide column (15-3) on the lower wheel frame (15-1), a damping spring (21) is sleeved on the guide column (15-3), the upper end of the damping spring (21) is pressed on the upper wheel frame (15-2), and the lower end of the damping spring (21) is pressed on the lower wheel frame (15-1).

3. The structure of claim 2, wherein the structure for counteracting the centrifugal force and the downward pressure of the chassis of the washing machine comprises: a brush disc shield (13) is fixed on the lower portion of the bottom plate (1), the brush disc shield (13) is bent into an arc-shaped structure, a skirt brush (14) is fixed on the outer side of the brush disc shield (13) of the arc-shaped structure, and a plurality of air outlets (17-2) are formed in the side wall, close to the vacuumizing motor assembly (2), of the cover (17).

4. The structure of claim 3, wherein the structure for counteracting the centrifugal force and the downward pressure of the chassis of the washing machine comprises: a charging port (5) electrically connected with a rechargeable lithium battery (8) is installed on one side of the cover (17), and a battery cover (7) is clamped on an opening of the battery box (17-1).

5. The structure of claim 4, wherein the structure is adapted to counteract the centrifugal force and downward pressure of the chassis of the washing machine, and comprises: the upper rear part of the cover (17) is provided with a rear wheel (18) through a rear wheel frame (19), and the rear wheel frame (19) and the top surface of the cover (17) are inclined at an angle.

6. The structure of claim 5, wherein the structure is adapted to counteract the centrifugal force and downward pressure of the chassis of a floor washing machine, and comprises: the middle rotary seat (6) is bent upwards to form an upper U-shaped frame (6-1) and bent downwards to form a lower U-shaped frame (6-2), the upper U-shaped frame (6-1) is used for being rotatably connected with an operating rod of the floor washing machine, the lower end of the lower U-shaped frame (6-2) is bent outwards to form a fixing part (6-3), and a bolt penetrates through a through hole in the fixing part (6-3) to fix the middle rotary seat (6) on the cover (17).

7. The structure of claim 6, wherein the structure for counteracting the centrifugal force and the downward pressure of the chassis of the washing machine comprises: a plane bearing (10) is arranged between an output shaft of the brush disc motor (3) and the disc brush fixing disc (11).

8. The structure of claim 7, wherein the structure for counteracting the centrifugal force and the downward pressure of the chassis of the washing machine comprises: the suction cup assembly is characterized in that the suction cup body assembly (9) is mounted on the bottom plate (1) through bolts, the suction cup body assembly (9) is connected to a sewage suction port of a sewage tank of the floor washing machine, and the suction cup body assembly (9) is of an arc structure which is opposite to the brush disc protective cover (13).

9. The structure of claim 8, wherein the structure for counteracting the centrifugal force and the downward pressure of the chassis of the washing machine comprises: the vacuum pumping motor assembly (2) is formed by arranging a vacuum pumping motor in a closed plastic box, and a sound insulation material is filled in a gap between the inner wall of the plastic box and the vacuum pumping motor.

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