CN215457718U - Vertical floor washing machine - Google Patents
Vertical floor washing machine Download PDFInfo
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- CN215457718U CN215457718U CN202121326777.9U CN202121326777U CN215457718U CN 215457718 U CN215457718 U CN 215457718U CN 202121326777 U CN202121326777 U CN 202121326777U CN 215457718 U CN215457718 U CN 215457718U
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Abstract
The utility model discloses a vertical floor washing machine, which comprises: the push rod and the cleaning chassis; the upper end of the aluminum rod is provided with a controller; the lower end of the aluminum rod is provided with a water tank seat; a clear water tank and a sewage tank are arranged above the water tank seat; a water suction pump and a vacuum pump are arranged in the water tank seat; the water suction pump and the vacuum pump are electrically connected to the controller; two brush discs fixed with a plurality of nylon brush hairs are rotatably arranged at the bottom side of the cleaning chassis; two driving motors are arranged on the upper side of the cleaning chassis; the two driving motors are electrically connected to the controller; one end of the water suction pump is connected with the clean water tank through a hose, and the other end of the water suction pump is connected with a water guide port arranged above the brush disc through a hose; the bottom side of the cleaning chassis is also provided with a water absorbing scraping strip; a water level alarm is arranged in the sewage tank; the housing of the waste water tank is formed with a visual window for a user to view the condition of the waste water inside. The vertical floor washing machine provided by the utility model is light and convenient to use, has a good cleaning effect, and can effectively prevent sewage from flowing backwards into the vacuum pump.
Description
Technical Field
The utility model relates to a floor washing machine for cleaning the ground, in particular to a vertical floor washing machine.
Background
Currently, the structures on portable floor washers on the market are such that: the cleaning device comprises a cleaning host and a handle rod, wherein the cleaning host is connected with the handle rod through a universal joint, and a water purifying tank, a sewage tank, a water absorption motor and the like are arranged on the handle rod. The sewage tank is used for collecting sewage generated by the cleaning main machine in the cleaning process, and the sewage tank pumps air in the tank through the vacuum pump in the using process so as to form negative pressure in the sewage tank and suck the sewage generated by the cleaning main machine in the cleaning process.
Such floor cleaning machine adopts horizontal structure mostly, has bulky, weight is big, moves inflexible scheduling problem, not only consumes artifical physical power, inconvenient some narrow regions of clearance moreover. Meanwhile, the structural limitation in the prior art also causes the problems that water stains on the ground are remained, the cleaning effect does not reach the standard and the like. In the in-process of in-service use, because cleaner rocks the handle bar or puts the handle bar and makes handle bar and washing the host computer carry out the buckle, install the sewage of the sewage incasement on the handle bar and flow into the vacuum pump very easily, can lead to the vacuum pump to burn out like this, damage floor cleaning machine.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vertical floor washing machine, which adopts the following technical scheme:
an upright floor scrubber comprising: the push rod and the cleaning chassis; the bottom end of the push rod is rotatably connected to the cleaning chassis through a universal hinge; the push rod is an aluminum rod with a hollow structure; the upper end of the aluminum rod is provided with a controller; the lower end of the aluminum rod is provided with a water tank seat; a clear water tank for placing clear water and a sewage tank for placing sewage are arranged above the water tank seat; a water suction pump for conveying clean water in the clean water tank to the cleaning chassis and a vacuum pump for forming negative pressure in the sewage tank to absorb sewage are arranged in the water tank seat; the water suction pump and the vacuum pump are electrically connected to the controller; two brush discs fixed with a plurality of nylon brush hairs are rotatably arranged at the bottom side of the cleaning chassis; two driving motors which are respectively used for driving the two brush discs are arranged on the upper side of the cleaning chassis; the two driving motors are electrically connected to the controller; one end of the water suction pump is connected with the clean water tank through a hose, and the other end of the water suction pump is connected with a water guide port arranged above the brush disc through a hose; the bottom side of the cleaning chassis is also provided with a water-absorbing scraping strip for scraping sewage on the ground; a water inlet pipe of the sewage tank penetrates through the aluminum rod and is communicated with the water absorption scraping strip; an exhaust pipe of the sewage tank is communicated with an exhaust port of the vacuum pump; a water level alarm is arranged in the sewage tank; the housing of the waste water tank is formed with a visual window for a user to view the condition of the waste water inside.
Furthermore, the clean water tank and the sewage tank are respectively provided with a water level detector; the water level detector is communicatively connected to the controller.
Furthermore, a control screen for displaying data and allowing a user to input and operate is arranged at the top end of the aluminum rod; the controller is electrically connected to the control screen.
Further, a lithium ion battery is arranged on the cleaning chassis through the mounting shell; the mounting shell is provided with an air duct and heat dissipation holes; the air duct is communicated with the heat dissipation holes; the driving motor, the water suction pump, the vacuum pump, the controller and the control screen are electrically connected to the lithium ion battery.
Furthermore, a lighting lamp is arranged on the front side of the cleaning chassis in the advancing direction; the lighting lamp is electrically connected to the controller and the lithium ion battery.
Furthermore, the cleaning chassis is provided with movable wheels for rolling and supporting the whole vertical floor washing machine after the cleaning chassis is folded; the movable wheel is rotationally connected to the cleaning chassis through the rotating frame; the rotating frame can be connected to the front end of the cleaning chassis in a turnover mode.
Furthermore, a water inlet pipe of the sewage tank extends into the push rod from the lower end of the push rod and is communicated with the water absorption scraping strip; the air suction pipe extends into the push rod from the upper end of the push rod and extends to the lower end of the push rod from top to bottom to be communicated with an air suction port of the vacuum pump. .
Further, the water level alarm is detachably arranged in the middle of the visual window in the vertical direction.
Furthermore, the visible window is provided with a transparent cover for sealing the visible window; the transparent cover is detachably arranged in the sewage tank.
Furthermore, the vertical floor washing machine is also provided with a supporting rod for supporting the push rod so as to keep the vertical floor washing machine standing when the vertical floor washing machine is not used; one end of the supporting rod is detachably inserted into a supporting hole formed in the cleaning chassis, and the other end of the supporting rod is clamped at the upper end of the push rod through a rotating buckle; the other end of the supporting rod can be adjustably clamped into a clamping groove formed by the rotary buckle.
The vertical floor washing machine has the advantages that the vertical floor washing machine is simple in structure and convenient to use, sewage for cleaning the ground can be cleaned, the cleaning effect is good, and the vacuum pump can be effectively prevented from being burnt down due to the fact that the sewage flows backwards into the vacuum pump.
Drawings
FIG. 1 is a schematic view of a cleaning chassis of the floor scrubber of the present invention in a folded position;
FIG. 2 is a schematic view of the scrubber chassis of the floor scrubber of FIG. 1 in a scrubbing position;
FIG. 3 is a schematic view of the floor scrubber of FIG. 2 from another angle;
FIG. 4 is a schematic view of the support bar support ram of the floor vertical scrubber of the present invention.
The vertical floor washing machine comprises a vertical floor washing machine 10, a push rod 11, a cleaning chassis 12, a support hole 121, a universal hinge 13, a controller 14, a water tank seat 15, a clean water tank 16, a sewage tank 17, a visible window 171, a transparent cover 172, a brush disc 18, a water guide port 181, nylon bristles 19, a driving motor 20, a water absorption scraping strip 21, a control screen 22, an installation shell 23, a lighting lamp 24, a movable wheel 25, a rotating frame 26, a bent handle 27, a hose 28, a support rod 29, a rotary buckle 30, a clamping groove 301, a water absorption pump, a vacuum pump and a water level detector which are all installed inside the structure and are not shown.
Detailed Description
The utility model is described in detail below with reference to the figures and the embodiments.
As shown in fig. 1 to 4, a vertical floor washing machine 10 according to the present invention includes: a push rod 11 and a cleaning chassis 12. The bottom end of the push rod 11 is rotatably connected to the cleaning chassis 12 through a universal hinge 13, so that the direction of pushing the cleaning chassis 12 can be adjusted as required.
As a specific structure: the push rod 11 is an aluminum rod with a hollow structure. The aluminum rod is light in weight, hard in texture and not easy to deform, and the hollow structure inside the aluminum rod is convenient for installing connecting pieces such as a hose 28. The upper end of the aluminum rod is provided with a controller 14, the lower end of the aluminum rod is provided with a water tank seat 15, and a clean water tank 16 and a sewage tank 17 are arranged above the water tank seat 15. The clean water tank 16 is used for placing clean water to clean the ground, and the sewage tank 17 is used for storing sewage after cleaning the ground. A water suction pump and a vacuum pump are arranged in the water tank seat 15. The water suction pump is used for conveying clean water in the clean water tank 16 to the cleaning chassis 12 to clean the ground, and the vacuum pump is used for forming negative pressure in the sewage tank 17 to absorb sewage after cleaning the ground. The suction pump and the vacuum pump are electrically connected to the controller 14 to be controlled by the controller, that is, the user can control the suction pump to deliver clean water to the cleaning chassis 12 through the controller 14 for cleaning the floor, and can control the vacuum pump to suck sewage after cleaning the floor into the sewage tank 17 through the controller 14. Two brush discs 18 are rotatably arranged at the bottom side of the cleaning chassis 12, and a plurality of nylon brush hairs 19 are fixed on the brush discs 18. Two drive motors 20 are mounted on the upper side of the cleaning chassis 12. The two driving motors 20 are respectively used for driving the two brush discs 18 to rotate, so as to drive the nylon brush to clean the ground. The nylon brush bristles 19 are gradually lengthened from the outer side to the inner side of the brush disk 18 to be at an angle with the ground, so that the cleaning effect is also good when an uneven ground surface is cleaned. The two driving motors 20 are electrically connected to the controller 14 to be controlled by the controller 14, that is, a user can control the driving motors 20 to rotate through the controller 14, so as to drive the brush disc 18 and the nylon bristles 19 to clean the floor.
Specifically, a water guide opening 181 is arranged above the brush disc 18, one end of the water suction pump is connected with the clean water tank 16 through a hose 28, and the other end of the water suction pump is connected with the water guide opening 181 through the hose 28, so that the clean water in the clean water tank 16 is conveyed to the ground through the water guide opening 181 to assist the nylon brush bristles 19 in cleaning the ground.
Specifically, the bottom side of the cleaning chassis 12 is further provided with a water absorption scraping strip 21. The water absorbing wiper strip 21 can wipe off the sewage on the ground to collect the sewage together, and then transfer the collected sewage to the sewage tank 17. The water absorbing wiper strip 21 is formed in an arc shape to surround the brush plate 18, thereby improving the efficiency of collecting sewage. And a water absorbing wiper strip 21 is provided at the rear side of the brush plate 18 in the forward direction to collect the sewage after cleaning the floor. The water inlet pipe of the sewage tank 17 penetrates through the aluminum rod to be communicated with the water sucking scraping strip 21, and the exhaust pipe of the sewage tank 17 is communicated with the exhaust port of the vacuum pump. Thus, negative pressure can be formed in the sewage tank 17 by the vacuum pump, and the sewage collected in the water suction wiper strip 21 can be sucked into the sewage tank 17 by the water inlet pipe of the sewage tank 17. A water level alarm is arranged in the sewage tank 17 to give an alarm when the water level of the sewage is higher, so that the situation that the vacuum pump is burnt down due to the backflow of the sewage in the sewage tank 17 into the vacuum pump is avoided. The casing of sewage case 17 is formed with visual window 171, and visual window 171 is used for the user to look over the inside sewage condition, and the user can pay attention to the sewage incasement sewage condition constantly like this to can further guarantee the safety in utilization of vacuum pump, thereby can avoid the sewage in the sewage case 17 to flow backwards to the vacuum pump in and lead to the condition emergence that the vacuum pump burns out.
As a specific embodiment, the clean water tank 16 and the dirty water tank 17 are provided with water level detectors, respectively. The water level detectors are capable of detecting the amount of water in the fresh water tank 16 and the foul water tank 17. The water level detector is communicatively connected to the controller 14 so that when the amount of water in the clean water tank 16 is too small or the amount of water in the waste water tank 17 is too large, the water level detector can timely feed back to the user to remind the user to perform treatment.
Further, a control screen 22 is arranged at the top end of the aluminum rod. The control screen 22 is used to display data and enables user input operations. The controller 14 is electrically connected to the control panel 22. Therefore, a user can visually observe the water quantity conditions of the clean water tank 16 and the sewage tank 17 through the control screen 22, and can input an operation instruction through the control screen 22 to control the vertical floor washing machine 10 to clean the ground, and the operation is intelligent and convenient.
In a specific embodiment, a lithium ion battery is mounted on the cleaning chassis 12 through a mounting case 23. The mounting case 23 is provided with an air duct and heat dissipation holes, which communicate the air duct with outside air, thereby achieving heat dissipation of the lithium ion battery. The driving motor 20, the water suction pump, the vacuum pump, the controller 14 and the control panel 22 are all electrically connected to the lithium ion battery to obtain power.
Further, an illumination lamp 24 is provided on the front side of the cleaning chassis 12 in the advancing direction. The illumination lamp 24 is electrically connected to the controller 14 and the lithium ion battery. The lithium ion battery supplies power to the illumination lamp 24. The user can control the illumination lamp 24 to be turned on or off through the controller 14.
In a particular embodiment, the cleaning chassis 12 is provided with movable wheels 25. The movable wheels 25 are used to roll support the entire vertical scrubber 10 after the chassis 12 is folded. That is, after the vertical floor washing machine 10 is removed from service, the cleaning chassis 12 can be folded to be upright, which saves storage space. This is convenient for the user to pull the floor washing machine 10 by the movable wheels 25 for storage and movement. The movable wheel 25 is rotatably connected to the cleaning chassis 12 via a rotating frame 26, and the rotating frame 26 is connected to the front end of the cleaning chassis 12 via a foldable connection. Thus, when the floor washing machine 10 is used for washing the ground, the rotating frame 26 can be turned over, and the movable wheels 25 rotate reversely to the upper part of the cleaning chassis 12, so that the collision between the movable wheels 25 and the obstacles is avoided.
As the concrete structure of this scheme, stretch into push rod 11 and the intercommunication strip 21 of scraping that absorbs water with the inlet tube of sewage case 17 from the lower extreme of push rod 11, set up the connection structure of sewage case 17 and strip 21 of scraping that absorbs water in the bottom of sewage case 17 like this, can practice thrift the manufacturing material of inlet tube, can also reduce the suction distance of sewage, reduce the energy consumption. The air exhaust pipe extends into the push rod 11 from the upper end of the push rod 11 and extends to the lower end of the push rod 11 from top to bottom to communicate with an air exhaust port of the vacuum pump, so that the connection structure of the sewage tank 17 and the vacuum pump is arranged at the top of the sewage tank 17, and sewage can be prevented from flowing back to the vacuum pump. Meanwhile, the water level alarm is detachably arranged in the middle of the visual window 171 in the vertical direction, so that the overhigh sewage surface can be avoided, and the water level alarm is convenient to detach. The visible window 171 is provided with a transparent cover 172 for closing the visible window 171, and the transparent cover 172 is detachably mounted on the sewage tank 17, so that the transparent cover 172 can be detached and cleaned conveniently, and the water level alarm can be detached and cleaned or replaced conveniently.
In one embodiment, the floor scrubber 10 is further provided with a support bar 29. The support bar 29 can support the push bar 11 to support the upright scrubber 10 to remain standing when the upright scrubber 10 is taken out of service. Thus, when the user stops using the vertical floor washing machine 10 temporarily and does not have a proper wall or object to lean against, the push rod 11 is supported, so that the situation that the push rod 11 is inclined and sewage leaks into the push rod or the vacuum pump is avoided. Specifically, a support hole 121 is formed on the upper side of the cleaning chassis 12, one end of the support rod 29 is detachably inserted into the support hole 121 formed on the cleaning chassis 12, the other end of the support rod 29 is clamped to the upper end of the push rod 11 through a rotary clamp 30, and the other end of the support rod 29 is adjustably clamped into a clamping groove 301 formed by the rotary clamp 30 so as to adjust the support angle of the support rod 29, so as to ensure the stability of the support structure.
In a specific embodiment, the aluminum rod is connected with bent handles 27 at both sides of the top end thereof. The bent handle 27 is intended to be held by a user for pushing the upright floor washing machine 10.
As a specific embodiment, the clean water tank 16 and the sewage tank 17 are detachably clamped on the water tank seat 15, and the bottom of the aluminum rod is detachably connected to the cleaning chassis 12 through a universal hinge 13. The clean water tank 16, the sewage tank 17 and the cleaning chassis 12 are convenient to disassemble, and the three parts are convenient to package, transport, clean and maintain.
In one particular embodiment, the cleaning chassis 12 is provided with a plurality of auxiliary wheels 29. The auxiliary wheels 29 are used to rollingly support the sweeper chassis 12 to facilitate the user's towing of the vertical scrubber 10.
As a specific embodiment, the water absorbing scraping strip 21 and the brush disc 18 are connected to the bottom side of the cleaning chassis 12 in a lifting manner through a lifting structure. The height of the water absorption scraping strip 21 and the height of the brush disc 18 can be adjusted through the lifting structure, so that the water absorption scraping strip 21 and the brush disc 18 are separated from the ground when the ground is not required to be cleaned, the use is cleaner and more convenient, and the service life of the water absorption scraping strip 21 and the brush disc 18 can be prolonged.
The vertical floor washing machine 10 provided by the scheme has the advantages that the weight is only one tenth of that of the traditional floor washing machine, the operation is extremely convenient, and the working efficiency is high. The lithium ion battery can be charged and can also be plugged to work, so that the applicability of the vertical floor washing machine 10 is improved. The aluminum rod is hinged with the cleaning chassis 12, so that the operation can be freely turned, the flexibility is greatly improved, the cleaning can be conveniently stretched into the lower part of furniture, and the cleaning degree is improved. The brush plate 18 and the water-absorbing wiper strip 21 are in a retracted state when not in operation, and the service life thereof is prolonged.
The vertical floor washing machine 10 is provided with a main safety switch, and the whole machine is divided into three gears: high, medium and low grades to adapt to different application environments. The speed may also be adjusted manually. The whole installation structure adopts mechanical buckles for connection, is economical, safe and durable, facilitates machine transportation and prevents safety accidents of clamping hands. The controller 14 adopts a waterproof measure partially to prevent water from seeping into the machine and influencing the service life of a motor and a circuit of the machine. Two cleaning ports are arranged in the sewage tank 17, so that the daily cleaning and flushing of operators are facilitated. The sewage tank 17 is internally provided with a waterproof backflow mechanism and a water level high-low level alarm device.
This vertical floor washing machine 10 still has the self-cleaning function, and after using, put in the washing tank, start machine self-cleaning brush dish 18 and sewage hose 28, convenient operation need not tear washing brush dish 18 and sewage hose 28 open one by one.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (10)
1. An upright floor scrubber comprising: the push rod and the cleaning chassis; the bottom end of the push rod is rotatably connected to the cleaning chassis through a universal hinge; the push rod is an aluminum rod with a hollow structure; the upper end of the aluminum rod is provided with a controller; the lower end of the aluminum rod is provided with a water tank seat; a clear water tank for placing clear water and a sewage tank for placing sewage are arranged above the water tank seat; a water suction pump for conveying clean water in the clean water tank to a cleaning chassis and a vacuum pump for enabling negative pressure to be formed in the sewage tank to absorb sewage are arranged in the water tank seat; the water suction pump and the vacuum pump are electrically connected to the controller; two brush discs fixed with a plurality of nylon brush hairs are rotatably arranged at the bottom side of the cleaning chassis; two driving motors which are respectively used for driving the two brushing disks are arranged on the upper side of the brushing chassis; the two driving motors are electrically connected to the controller; one end of the water suction pump is connected with the clean water tank through a hose, and the other end of the water suction pump is connected with a water guide port arranged above the brush disc through a hose; the bottom side of the cleaning chassis is also provided with a water absorption scraping strip for scraping sewage on the ground; a water inlet pipe of the sewage tank penetrates through the aluminum rod and is communicated with the water absorbing scraping strip; the exhaust pipe of the sewage tank is communicated with an exhaust port of the vacuum pump; a water level alarm is arranged in the sewage tank; the shell of the sewage tank is provided with a visual window for a user to check the condition of the sewage inside.
2. The floor scrubber of claim 1,
the clean water tank and the sewage tank are respectively provided with a water level detector; the water level detector is communicatively connected to the controller.
3. The floor scrubber of claim 2,
the top end of the aluminum rod is provided with a control screen which is used for displaying data and can be used for user input operation; the controller is electrically connected to the control screen.
4. The floor scrubber of claim 3,
a lithium ion battery is arranged on the cleaning chassis through an installation shell; the mounting shell is provided with an air duct and heat dissipation holes; the air duct is communicated with the heat dissipation holes; the driving motor, the water suction pump, the vacuum pump, the controller and the control screen are all electrically connected to the lithium ion battery.
5. The floor scrubber of claim 4,
the front side of the cleaning chassis in the advancing direction is provided with an illuminating lamp; the lighting lamp is electrically connected to the controller and the lithium ion battery.
6. The floor scrubber of claim 1,
the cleaning chassis is provided with movable wheels for rolling and supporting the whole vertical floor washing machine after the cleaning chassis is folded; the movable wheel is rotationally connected to the cleaning chassis through a rotating frame; the rotating frame can be connected to the front end of the cleaning chassis in a turnover mode.
7. The floor scrubber of claim 1,
the water inlet pipe of the sewage tank extends into the push rod from the lower end of the push rod and is communicated with the water absorption scraping strip; the air suction pipe extends into the push rod from the upper end of the push rod and extends to the lower end of the push rod from top to bottom to be communicated with an air suction port of the vacuum pump.
8. The floor scrubber of claim 1,
the water level alarm is detachably arranged in the middle of the visual window in the vertical direction.
9. The floor scrubber of claim 8,
the visible window is provided with a transparent cover for closing the visible window; the transparent cover is detachably mounted on the sewage tank.
10. The floor scrubber of claim 1,
the vertical floor washing machine is also provided with a supporting rod for supporting the push rod so as to keep the vertical floor washing machine standing when the vertical floor washing machine is not used; one end of the supporting rod is detachably inserted into a supporting hole formed in the cleaning chassis, and the other end of the supporting rod is clamped at the upper end of the push rod through a rotating buckle; the other end of the supporting rod can be adjustably clamped into a clamping groove formed by the rotary buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121326777.9U CN215457718U (en) | 2021-06-15 | 2021-06-15 | Vertical floor washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121326777.9U CN215457718U (en) | 2021-06-15 | 2021-06-15 | Vertical floor washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215457718U true CN215457718U (en) | 2022-01-11 |
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ID=79718676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121326777.9U Active CN215457718U (en) | 2021-06-15 | 2021-06-15 | Vertical floor washing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN215457718U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115089064A (en) * | 2022-06-28 | 2022-09-23 | 珠海格力电器股份有限公司 | Floor washing machine and control method thereof |
| WO2023174171A1 (en) * | 2022-03-18 | 2023-09-21 | 深圳市普渡科技有限公司 | Floor scrubber |
| WO2024060412A1 (en) * | 2022-09-23 | 2024-03-28 | 玛照里(广东)科技有限公司 | Novel double-brush floor scrubber |
-
2021
- 2021-06-15 CN CN202121326777.9U patent/CN215457718U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023174171A1 (en) * | 2022-03-18 | 2023-09-21 | 深圳市普渡科技有限公司 | Floor scrubber |
| CN115089064A (en) * | 2022-06-28 | 2022-09-23 | 珠海格力电器股份有限公司 | Floor washing machine and control method thereof |
| CN115089064B (en) * | 2022-06-28 | 2023-08-29 | 珠海格力电器股份有限公司 | Floor washing machine and control method thereof |
| WO2024060412A1 (en) * | 2022-09-23 | 2024-03-28 | 玛照里(广东)科技有限公司 | Novel double-brush floor scrubber |
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