Main machine of scrubber
By using magnetic brush connection and modular squeegee design, the problems of instability and insufficient wastewater recovery during the cleaning process of the floor scrubber are solved, improving the equipment's operational stability and wastewater recovery efficiency, and extending the cleaning time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING ALTON TECH CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-05-08
AI Technical Summary
Existing floor scrubbers suffer from poor stability and insufficient wastewater recovery during the cleaning process. In particular, the resistance of the brush on one side increases sharply when turning, causing deviation. The cleaning speed is unstable, and uneven wastewater recovery results in more residue.
The magnetic brush connection simplifies brush installation and reduces mechanical transmission losses; the modular design of the scraper assembly and the detachable scraper strips improve sewage suction efficiency; the combination of the wheels and the scraper assembly ensures equipment stability and sewage collection effectiveness.
This has improved the operational stability and wastewater recycling capabilities of the floor scrubber, reduced mechanical friction resistance, and increased cleaning efficiency and battery life.
Smart Images

Figure CN224206750U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a floor scrubbing machine device, and more particularly to a floor scrubbing machine main unit. Background Technology
[0002] As a high-efficiency cleaning equipment, floor scrubbers have been widely used in commercial and household settings, and the demand for automated cleaning continues to grow. Existing floor scrubber products adopt a dual-motor driven brush structure, with two independent motors controlling the rotating brushes respectively; most lack an autonomous walking mechanism and rely on manual pushing to achieve equipment displacement; they adopt a flat suction port layout, with suction port structures set along the brush axis. Existing floor scrubbers mainly have the following problems during operation: (1) Mechanical imbalance problem: the torque of the dual brushes may be asymmetrical, especially when turning, the resistance of one side of the brush increases sharply, causing deviation and poor stability; (2) Human-machine coordination problem: the deviation of the user's force angle causes the equipment to have a serpentine trajectory, and manual pushing may also cause large fluctuations in cleaning speed; (3) Poor wastewater recovery capacity, uneven negative pressure distribution leads to more residual wastewater, resulting in poor cleaning effect. Utility Model Content
[0003] Technical problem solved: In view of the problems of insufficient stability and sewage discharge capacity of existing floor scrubbers during the cleaning process, this utility model provides a floor scrubber main unit with advantages such as good travel stability and strong sewage recovery capacity.
[0004] Technical solution: The present invention provides a floor scrubbing machine main unit, which includes a scrubbing base and a main unit shell correspondingly fastened to the scrubbing base;
[0005] The scrubbing base includes a mounting plate, with two floor brush motors correspondingly arranged at the front end of the mounting plate. The drive end of the floor brush motor is located at the bottom of the mounting plate and is connected to the floor brush. The mounting plate is located at the rear end of the two floor brush assemblies and corresponds to the squeegee assembly. The mounting plate is provided with wheels on both sides of the rear end of the mounting plate.
[0006] Preferably, the front end of the mounting plate is provided with two motor mounting holes for mounting the floor brush motor. The drive end of the floor brush motor is correspondingly located at the motor mounting hole. The drive end is located at the bottom of the mounting plate and a drive block is correspondingly provided. A magnetic suction plate is provided around the drive block at the bottom of the mounting plate.
[0007] The floor brush includes a floor brush mounting block and a bristle disc fixedly disposed at the lower end of the floor brush mounting block; the floor brush mounting block has a connecting slot in the center that matches the shape of the drive block, and the floor brush is correspondingly engaged with the drive block through the connecting slot;
[0008] The floor brush mounting block has magnetic rings embedded around the outer periphery of the connecting slot. The magnetic rings are attracted to the magnetic plate, allowing the floor brush to be disassembled or installed from the drive end of the floor brush motor.
[0009] Preferably, the drive block and the connecting slot adopt a matching hexagonal structure.
[0010] Preferably, the mounting plate has a drain pipe mounting hole in the center for mounting the wiper assembly; the wiper assembly includes a wiper base, a wiper blade, a drain pipe, and a wiper rubber strip;
[0011] The sewage discharge end pipe is installed at the upper end of the sewage discharge pipe position hole, and the wiper base is connected to the lower end of the sewage discharge pipe position hole; a limit groove is provided at the bottom of the wiper base, and the wiper is disassembled and snapped into the limit groove;
[0012] The wiper blade and wiper blade base adopt an arc-shaped structure. The bottom end of the wiper blade is provided with two rubber strip grooves along the arc direction, and multiple protrusions are provided on both sides of the inner wall of the rubber strip grooves. The wiper rubber strips are correspondingly engaged in the rubber strip grooves, so that a sewage collection cavity is formed between the two sets of wiper rubber strips.
[0013] Preferably, a sewage discharge channel is provided in the center of the two rubber strip grooves at the bottom of the wiper blade, and a plug pipe communicating with the sewage discharge channel is provided at the top of the wiper blade. The plug pipe is correspondingly and sealed into the sewage discharge end pipe, and the top end of the sewage discharge end pipe is connected to the sewage hose.
[0014] Preferably, the lower edge of the front wiper blade has multiple semi-circular through holes, and the lower edge of the rear wiper blade makes good contact with the ground, so that the sewage collection chamber formed between the two sets of wiper blades forms a negative pressure chamber under the suction of the air pump.
[0015] Preferably, guide wheel seats are provided on the back sides of both ends of the wiper blade, and the guide wheel seats are provided adjacent to the rear side of the wiper blade, and guide wheels are connected to the guide wheel seats.
[0016] Preferably, the mounting plate is provided with a sewage pipe fixing plate for fixing the sewage pipe at the upper end of the sewage pipe position hole.
[0017] Preferably, the floor scrubber main unit further includes an air pump and a water pump mounted on the mounting plate; the floor scrubber includes a floor scrubber main unit, a control lever and a control handle, the lower end of the control lever is hinged to the floor scrubber main unit, the control handle is correspondingly connected to the top of the control lever, and the control handle is electrically connected to each actuator of the floor scrubber main unit.
[0018] Preferably, the rear end of the main unit housing is provided with a plurality of battery pack slots, and a rechargeable battery pack is detachably installed in each battery pack slot.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] 1. The main unit of the floor scrubber of this utility model has the advantages of stable operation, efficient cleaning and long battery life;
[0021] 2. The scrubbing base adopts an integrated design, with the mounting plate integrating components such as the floor brush motor, water pump, and air pump, simplifying the assembly process and reducing manufacturing costs;
[0022] 3. The floor brush is quickly connected to the drive block via a magnetic ring, reducing mechanical transmission loss. The magnetic floor brush installation reduces frictional resistance, improves motor efficiency, reduces peak power consumption of dual-motor parallel drive, and facilitates replacement of the floor brush after wear.
[0023] 4. The wiper assembly adopts a modular design. The wiper blade can be detachably clipped to the lower end of the wiper plate, allowing for quick replacement of the wiper blade and reducing maintenance time. The guide wheel supports the blade to prevent deformation and ensures efficient sewage suction.
[0024] 5. The main unit of this floor scrubber is equipped with a detachable battery pack, which is located in the slot at the rear of the main unit housing and can be replaced individually. The modular battery pack can reduce the weight of a single battery and supports "hot replacement", improving the floor scrubber's endurance. Standardized interfaces such as the battery pack slot improve the versatility of parts. Attached Figure Description
[0025] Figure 1 This is a three-dimensional structural diagram of the floor scrubber of this utility model;
[0026] Figure 2 for Figure 1 Schematic diagram of the internal structure of the main unit of the floor scrubber;
[0027] Figure 3 for Figure 2 A schematic diagram of the connection structure between the control lever and the scrubbing base of a floor scrubber;
[0028] Figure 4 for Figure 3 A first-person perspective 3D structural diagram of the washing base;
[0029] Figure 5 for Figure 4 A second-view 3D structural diagram of the washing base;
[0030] Figure 6 for Figure 5 A third-person perspective 3D structural diagram of the central washing base;
[0031] Figure 7 yes Figure 6 Schematic diagram of the mounting plate structure;
[0032] Figure 8 yes Figure 5 Schematic diagram of the central brush structure;
[0033] Figure 9 for Figure 1 Schematic diagram of the three-dimensional structure of the main unit casing;
[0034] Figure 10 for Figure 2 Schematic diagram of the three-dimensional structure of the central wiper blade assembly;
[0035] Figure 11 for Figure 10 Schematic diagram of the exploded structure of the central wiper blade assembly;
[0036] Figure 12 for Figure 11 Schematic diagram of the bottom structure of the middle wiper blade assembly.
[0037] Reference numerals: 100, Floor scrubber; 1, Floor scrubber main unit; 2, Control lever; 3, Control handle; 4, Scrubber base; 5, Main unit housing; 51, Battery pack slot; 6, Wheels; 7, Rechargeable battery pack; 8, Mounting plate; 81, Motor mounting hole; 82, Drain pipe hole; 9, Floor brush motor; 10, Floor brush; 101, Floor brush mounting block; 102, Connecting slot; 103, Brush disc; 104, Magnetic ring; 11, Squeegee assembly Components; 111. Wiper blade base; 112. Wiper blade; 1121. Guide wheel seat; 1122. Rubber strip slot; 1123. Connecting pipe; 1124. Sewage discharge channel; 1125. Protrusion; 1126. Sewage collection chamber; 113. Sewage discharge end pipe; 114. Fixing connector; 115. Wiper rubber strip; 116. Guide wheel; 12. Water pump; 13. Air pump; 14. Sewage pipe fixing plate; 15. Drive block; 16. Magnetic suction plate. Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings. Figures 1-12 The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.
[0039] like Figures 1-3As shown, this utility model discloses a floor scrubbing machine main unit. The floor scrubbing machine 100 includes a main unit 1, a control lever 2, and a control handle 3. The control lever 2 adopts a profile structure with multiple through cavities to accommodate the installation of various pipelines. The control handle 3 integrates control buttons such as water spraying, scrubbing, and wastewater suction, achieving the corresponding functions using existing technology. The lower end of the control lever 2 is hinged to the main unit 1, and the control handle 3 is correspondingly connected to the top end of the control lever 2. The control handle 3 is electrically connected to each actuator of the main unit 1.
[0040] like Figures 1-2 and Figure 7 As shown, the floor scrubber main unit 1 includes a scrubbing base 4 and a main unit housing 5 that is correspondingly fastened to the scrubbing base 4. Figure 7 As shown, the scrubbing base 4 includes a mounting plate 8. The front end of the mounting plate 8 is provided with two motor mounting holes 81 for mounting the floor brush motor 9, and the center of the mounting plate 8 is provided with a drain pipe hole 82 for mounting the drain pipe 113.
[0041] like Figures 2-8 As shown, two floor brush motors 9 are correspondingly arranged at the front end of the mounting plate 8. The drive end of the floor brush motor 9 is correspondingly arranged at the motor mounting hole 81. The drive end is located at the bottom of the mounting plate 8 and a drive block 15 is correspondingly arranged there. A magnetic suction plate 16 is arranged around the drive block 15 at the bottom of the mounting plate 8. The floor brush 10 includes a floor brush mounting block 101 and a bristle disc 103 fixedly arranged at the lower end of the floor brush mounting block 101. A connecting slot 102 adapted to the shape of the drive block 15 is provided in the center of the floor brush mounting block 101. The floor brush 10 can be correspondingly snapped onto the drive block 15 through the connecting slot 102. A magnetic suction ring 104 is embedded on the outer periphery of the connecting slot 102 of the floor brush mounting block 101. The magnetic suction ring 104 can be correspondingly attracted to the magnetic suction plate 16, so that the floor brush 10 and the drive end of the floor brush motor 9 can be quickly disassembled and installed, which facilitates the convenient replacement of the floor brush 10.
[0042] In one specific embodiment, the drive block 15 and the connecting slot 102 adopt a matching hexagonal structure; it should be noted that the drive block 15 and the connecting slot 102 may also adopt triangular, quadrilateral or other shapes.
[0043] like Figure 2 , Figures 10-12As shown, the mounting plate 8 is located at the rear end of the two floor brush assemblies 10, corresponding to the wiper assembly 11. The wiper assembly 11 includes a wiper base 111, a wiper blade 112, a drain pipe 113, and a wiper strip 115. A drain pipe positioning hole 82 is provided on the mounting plate 8. The drain pipe 113 is installed at the upper end of the drain pipe positioning hole 82 through a drain pipe fixing plate 14. The wiper base 111 is connected to the lower end of the drain pipe positioning hole 82 through a fixing connector 114. A limiting groove is provided at the bottom of the wiper blade base 111, and the wiper blade 112 is disassembled and fitted into the limiting groove. The wiper blade 112 and the wiper blade base 111 adopt an arc-shaped structure. The bottom end of the wiper blade 112 is provided with two rubber strip grooves 1122 along the arc direction, and multiple protrusions 1125 are provided on both sides of the inner wall of the rubber strip grooves 1122. The wiper rubber strips 115 are correspondingly engaged in the rubber strip grooves 1122, so that a sewage collection chamber 1126 is formed between the two sets of wiper rubber strips 115. The lower edge of the wiper rubber strip 115 at the front end is provided with multiple semi-circular through holes, and the lower edge of the wiper rubber strip 115 at the rear end makes good contact with the ground, so that the sewage collection chamber 1126 formed between the two sets of wiper rubber strips 115 forms a negative pressure chamber under the suction action of the air pump 13. A drain channel 1124 is provided in the center of the two rubber strip grooves 1122 at the bottom of the wiper blade 112, and a connector 1123 communicating with the drain channel 1124 is provided at the top of the wiper blade 112. The connector 1123 can be correspondingly and sealed into the drain end pipe 113. The top end of the drain end pipe 113 is fixedly connected to one end of the sewage hose. Under the suction force of the air pump 13, the sewage hose can draw the sewage collection chamber 1126 to form a negative pressure zone, thereby improving the suction effect of the cleaning sewage. Guide wheel seats 1121 are correspondingly provided on the back side of both ends of the wiper blade 112. The guide wheel seats 1121 are respectively located adjacent to the rear side of the wiper rubber strip 115. Guide wheels 116 are connected to the guide wheel seats 1121. During the operation of the wiper blade 112, the guide wheels 116 can be correspondingly supported on the rear side of the wiper rubber strip 115, preventing the wiper rubber strip 115 from being excessively deformed and affecting the sewage suction effect.
[0044] like Figures 1-6 As shown, there are walking wheels 6 on both sides of the rear end of the mounting plate 8. These walking wheels 6 work together with the washing assembly to enable the washing host to move stably, effortlessly, and efficiently, thereby improving the user experience.
[0045] like Figure 2As shown, the mounting plate 8 is equipped with electrical components such as a water pump 12, an air pump 13, and a floor brush motor 9. The air pump 13 provides negative pressure suction power for the wastewater tank, and the water pump 12 is connected to the clean water tank to provide power for the water spraying of the floor scrubber main unit 1. All these functions can be achieved using existing technologies. The control handle 3 is connected to the top of the control lever 2 and is electrically connected to each actuator of the floor scrubber main unit 1. For example, the control handle 3 can control the operation of the water pump 12, the air pump 13, and the floor brush motor 9.
[0046] like Figure 1 and Figure 9 As shown, multiple battery pack slots 51 are provided at the rear end of the main unit housing 5, and a rechargeable battery pack 7 is detachably installed in each battery pack slot 51. In one specific embodiment, there are two battery pack slots 51, and each battery pack can drive the floor scrubber. This arrangement facilitates the charging and replacement of the battery packs and improves their applicability. The battery packs can supply power to various actuators of the floor scrubber main unit 1, such as the water pump 12, the air pump 13, and the floor brush motor 9.
[0047] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A floor scrubbing machine main unit, characterized in that, The floor scrubber main unit (1) includes a scrubbing base (4) and a main unit shell (5) that is correspondingly fastened to the scrubbing base (4); The washing base (4) includes a mounting plate (8). Two floor brush motors (9) are correspondingly arranged at the front end of the mounting plate (8). The driving end of the floor brush motor (9) is located at the bottom of the mounting plate (8) and is connected to the floor brush (10). The mounting plate (8) is located at the rear end of the two floor brush (10) assemblies and corresponds to the squeegee assembly (11). The mounting plate (8) is provided with walking wheels (6) on both sides of the rear end.
2. The floor scrubbing machine main unit according to claim 1, characterized in that, The front end of the mounting plate (8) is provided with two motor mounting holes (81) for mounting the floor brush motor (9). The driving end of the floor brush motor (9) is correspondingly located at the motor mounting hole (81). The driving end is located at the bottom of the mounting plate (8) and a driving block (15) is correspondingly provided. A magnetic suction plate (16) is provided around the driving block (15) at the bottom of the mounting plate (8). The floor brush (10) includes a floor brush mounting block (101) and a bristle disc (103) fixedly disposed at the lower end of the floor brush mounting block (101); the floor brush mounting block (101) has a connecting slot (102) in the center that is adapted to the shape of the drive block (15), and the floor brush (10) is correspondingly engaged with the drive block (15) through the connecting slot (102); The floor brush mounting block (101) has a magnetic ring (104) embedded on the outer periphery of the connecting slot (102). The magnetic ring (104) is attached to the magnetic plate (16) to enable the floor brush (10) to be disassembled or installed from the drive end of the floor brush motor (9).
3. The floor scrubbing machine main unit according to claim 2, characterized in that, The drive block (15) and the connecting slot (102) adopt a matching hexagonal structure.
4. The floor scrubbing machine main unit according to claim 1, characterized in that, The mounting plate (8) has a drain pipe hole (82) in the center for installing the wiper assembly (11); the wiper assembly (11) includes a wiper base (111), a wiper (112), a drain pipe (113), and a wiper rubber strip (115); The drain pipe (113) is installed on the upper end of the drain pipe position hole (82), and the wiper base (111) is connected to the lower end of the drain pipe position hole (82); the bottom of the wiper base (111) is provided with a limit slot, and the wiper (112) is disassembled and installed in the limit slot; The wiper blade (112) and wiper blade base (111) adopt an arc-shaped structure. The bottom end of the wiper blade (112) is provided with two rubber strip grooves (1122) along the arc direction, and multiple protrusions (1125) are provided on both sides of the inner wall of the rubber strip grooves (1122). The wiper rubber strips (115) are correspondingly engaged in the rubber strip grooves (1122), and a sewage collection cavity (1126) is formed between the two sets of wiper rubber strips (115).
5. The floor scrubbing machine main unit according to claim 4, characterized in that, A sewage discharge channel (1124) is provided in the center of the two rubber strip grooves (1122) at the bottom of the wiper blade (112), and a plug pipe (1123) communicating with the sewage discharge channel (1124) is provided at the top of the wiper blade (112). The plug pipe (1123) is correspondingly and sealed into the sewage discharge end pipe (113), and the top end of the sewage discharge end pipe (113) is connected to the sewage hose.
6. The floor scrubbing machine main unit according to claim 5, characterized in that, The lower edge of the front wiper blade (115) is provided with multiple semi-circular through holes, and the lower edge of the rear wiper blade (115) makes good contact with the ground, so that the sewage collection chamber (1126) formed between the two sets of wiper blades (115) forms a negative pressure chamber under the suction action of the air pump (13).
7. The floor scrubbing machine main unit according to claim 4, characterized in that, The wiper blade (112) has guide wheel seats (1121) on its back side at both ends. The guide wheel seats (1121) are respectively arranged adjacent to the rear side of the wiper strip (115), and guide wheels (116) are connected to the guide wheel seats (1121).
8. The floor scrubbing machine main unit according to claim 4, characterized in that, The mounting plate (8) is provided with a sewage pipe fixing plate (14) for fixing the sewage end pipe (113) at the upper end of the sewage pipe position hole (82).
9. The floor scrubbing machine main unit according to claim 1, characterized in that, The floor scrubber main unit (1) also includes an air pump (13) and a water pump (12) installed on the mounting plate (8); the floor scrubber (100) includes the floor scrubber main unit (1), a control lever (2) and a control handle (3), the lower end of the control lever (2) is hinged to the floor scrubber main unit (1), the control handle (3) is correspondingly connected to the top of the control lever (2), and the control handle (3) is electrically connected to each actuator of the floor scrubber main unit (1).
10. The floor scrubbing machine main unit according to claim 1, characterized in that, The rear end of the main housing (5) is provided with several battery pack slots (51), and a rechargeable battery pack (7) is installed in each battery pack slot (51).