A floor cleaning machine

By improving the chassis structure of the floor scrubber and combining the design of the main wheels, auxiliary support components, and arc-shaped squeegee, the problem of water tank scratches has been solved, cleaning efficiency and user experience have been improved, and the stability and lightweight of the equipment have been achieved.

CN224540126UActive Publication Date: 2026-07-24ANHUI JIEYAO INTELLIGENT MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI JIEYAO INTELLIGENT MANUFACTURING CO LTD
Filing Date
2025-05-21
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing walk-behind floor scrubbers often have water tanks that scrape against the floor when the handle is pressed down, affecting cleaning performance and user experience.

Method used

Featuring a chassis design including main wheels, auxiliary support components, pressure adjustment components, and an arc-shaped squeegee, it dynamically adjusts the brush contact with the ground. Combined with pulley and roller design, it avoids the water tank rubbing against the ground, improving cleaning efficiency.

Benefits of technology

It effectively prevents the water tank from scratching the ground, improves cleaning efficiency and user experience, protects the water tank, adapts to different ground materials, and enhances equipment stability and lightweight design.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to cleaning equipment technical field especially, it relates to a floor washing machine, include: bottom, bottom is by main part and connecting frame is composed, the bottom part symmetry of bottom is equipped with main wheel, and the top of bottom is installed water tank, and the top of water tank is connected with handrail, cleaning mechanism, cleaning mechanism includes the connecting plate of connecting with connecting frame, installs motor in connecting plate, and the brush disc that is connected with point and the arc water sucking spud that sets up around brush disc outer edge, pressure regulating subassembly, pressure regulating subassembly includes the screw rod that penetrates connecting frame, the knob of fixed in screw rod end and the compression spring of sleeve and screw rod, and the front end of screw rod is hinged with connecting plate, and the both ends of compression spring abut against connecting frame and connecting plate respectively, auxiliary support subassembly, auxiliary support subassembly includes the support frame that is connected with main part, and the pulley that is installed in support frame and is parallel with main wheel axis, compared with prior art, according to the different dynamic adjustment of brush disc according to ground material quality, can effectively improve the cleaning efficiency of floor washing machine.
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Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a floor scrubber. Background Technology

[0002] In the modern home cleaning industry, floor scrubbers have become a popular household appliance due to their efficient functions of washing and mopping. They not only significantly reduce the cleaning workload for users, but also improve the quality of the home environment with their excellent cleaning effect, thus gaining widespread application and rapid promotion. According to the operation mode, floor scrubbers are mainly divided into two categories: walk-behind and ride-on. The former is flexible and convenient, suitable for daily cleaning of homes and small commercial spaces; the latter, with its powerful cleaning efficiency, has become the main force in cleaning large areas such as large shopping malls and factory workshops.

[0003] For walk-behind floor scrubbers, a single-axle structure is often used at the bottom to ensure that the scrubber's brush makes full contact with the ground. However, this structure can cause the water tank to scrape against the ground when the operator presses down on the handle. To prevent the water tank from scraping while ensuring that the brush makes full contact with the ground, further improvements are needed. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a floor scrubbing machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A floor scrubbing machine, characterized in that it comprises:

[0007] The chassis consists of a main body and a connecting frame. The chassis has symmetrical main wheels at the bottom and a water tank installed on the top of the chassis. The top of the water tank is connected to a handrail.

[0008] The cleaning mechanism includes a connecting plate hinged to a connecting frame, a motor mounted on the connecting plate, a brush plate connected to a point, and an arc-shaped squeegee surrounding the outer edge of the brush plate.

[0009] The pressure regulating assembly includes a screw rod passing through the connecting frame, a knob fixed to the end of the screw rod, and a compression spring sleeved on the screw rod. The front end of the screw rod is hinged to the connecting plate, and the two ends of the compression spring abut against the connecting frame and the connecting plate, respectively.

[0010] The auxiliary support assembly includes a support frame connected to the main body and a pulley mounted on the support frame and parallel to the axis of the main wheel.

[0011] Preferably, the auxiliary support assembly is located on the side of the chassis facing away from the brush plate, and when the brush plate contacts the ground, the lowest point of the pulley is higher than the lowest point of the main wheel.

[0012] Preferably, the end of the arc-shaped squeegee is provided with a roller, the roller axis is parallel to the main wheel axis, and the bottom of the roller is flush with the bottom surface of the squeegee.

[0013] Preferably, the curvature center of the arc-shaped squeegee coincides with the axis of the brush plate and the coverage angle is 180 degrees. The inner surface of the arc-shaped squeegee is provided with a flexible scraper extending along the arc direction, and the lower edge of the flexible scraper forms a continuous wave-shaped contact surface.

[0014] Preferably, the main body has a built-in battery box, which contains a battery module for powering the motor. The battery box has a pair of grooves arranged symmetrically about the battery box.

[0015] Preferably, the pulley surface is covered with a polyurethane elastic layer, the thickness of which is 3-5 mm.

[0016] Preferably, the main wheel adopts a hollow hub structure, and the hub is provided with a counterweight cavity, which can be filled with a counterweight block weighing 0.5kg-2kg.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] Compared with existing technologies, dynamically adjusting the brush plate according to different ground materials can effectively improve the cleaning efficiency of the floor scrubber; by setting an auxiliary support component on the side of the chassis facing away from the brush plate, it can effectively prevent the bottom of the water tank from scraping against the ground when the operator presses down on the handle, thus effectively protecting the bottom of the water tank. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the floor scrubber proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the chassis structure of the floor scrubber proposed in this utility model;

[0021] Figure 3 This is a top view of the chassis of the floor scrubber proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the brush disc in the floor scrubber proposed in this utility model.

[0023] In the diagram: 1-chassis, 11-main body, 111-groove, 12-connecting frame, 2-auxiliary support assembly, 21-support frame, 22-pulley, 3-main wheel, 4-water tank, 41-handrail, 5-pressure adjustment assembly, 51-knob, 52-screw, 53-compression spring, 6-brush plate, 7-motor, 8-roller, 9-connecting plate, 10-squeegee. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-4 As shown, this embodiment provides a floor scrubbing machine, including:

[0026] The chassis 1 consists of a main body 11 and a connecting frame 12. The chassis 1 has main wheels 3 symmetrically arranged at the bottom. The chassis 1 has a water tank 4 installed on the top. The top of the water tank 4 is connected to a handrail 41.

[0027] The cleaning mechanism includes a connecting plate 9 hinged to the connecting frame 12, a motor 7 mounted on the connecting plate 9, a brush 6 connected to a point, and an arc-shaped squeegee 10 arranged around the outer edge of the brush 6.

[0028] The pressure regulating component 5 includes a screw 52 that passes through the connecting frame 12, a knob 51 fixed to the end of the screw 52, ​​and a compression spring 53 sleeved on the screw 52. The front end of the screw 52 is hinged to the connecting plate 9, and the two ends of the compression spring 53 abut against the connecting frame 12 and the connecting plate 9 respectively.

[0029] The auxiliary support assembly 2 includes a support frame 21 connected to the main body 11 and a pulley 22 installed on the support frame 21 and parallel to the axis of the main wheel 3.

[0030] Overall, the operator adjusts the preload of the compression spring 53 by turning the knob 51 to adapt the brush plate 6 to different floor materials to improve the cleaning effect. After adjusting the brush plate 6, the operator holds the handle 41 and makes the brush plate 6 contact the ground. At this time, the pulley 22 is suspended in the air. The floor scrubber moves forward with the cooperation of the main wheel 3. The motor 7 drives the brush plate 6 to rotate. With the help of the arc-shaped squeegee 10 around the outer edge of the brush plate 6, the wastewater generated during the cleaning process of the brush plate 6 is absorbed and the ground is scraped to achieve the cleaning of the ground. After the ground is cleaned, the operator presses down the handle 41. Due to the action of the auxiliary support component 2, the pulley 22 contacts the ground and is parallel to the axis of the main wheel 3. This not only avoids the water tank 4 from rubbing against the ground, but also assists the entire floor scrubber to move forward.

[0031] like Figures 1-2 As shown, in this embodiment, the auxiliary support component 2 is located on the side of the chassis 1 facing away from the brush plate 6. When the brush plate 6 is in contact with the ground, the lowest point of the pulley 22 is higher than the lowest point of the main wheel 3.

[0032] Specifically, when the brush 6 contacts the ground, the lowest point of the pulley 22 is higher than the lowest point of the main wheel 3 and is suspended in the air. The weight of the machine body is shared by the main wheel 3 and the brush 6, which can better protect the pulley 22 when the floor scrubber is working.

[0033] like Figure 4 As shown, in this embodiment, the end of the arc-shaped squeegee 10 is provided with a roller 8, the axis of the roller 8 is parallel to the axis of the main wheel 3, and the bottom of the roller 8 is flush with the bottom surface of the squeegee 10.

[0034] Specifically, the end of the arc-shaped squeegee 10 is equipped with rollers 8 parallel to the axis of the main wheel 3. When the operator pushes the floor scrubber, it can reduce the friction between the arc-shaped squeegee 10 and the ground, making the floor scrubber move more smoothly.

[0035] like Figure 4 As shown, in this embodiment, the curvature center of the arc-shaped squeegee 10 coincides with the axis of the brush disk 6 and the coverage angle is 180 degrees. The inner surface of the arc-shaped squeegee 10 is provided with a flexible scraper extending along the arc direction, and the lower edge of the flexible scraper forms a continuous wave-shaped contact surface.

[0036] By aligning the curvature center of the arc-shaped squeegee 10 with the axis of the brush plate 6, it is possible to ensure that the arc-shaped squeegee 10 absorbs water evenly and effectively protect the brush plate 6 and the squeegee 10, ensuring that the brush plate 6 will not rub or collide with the arc-shaped squeegee 10 when rotating.

[0037] like Figures 2-3 As shown, in this embodiment, the main body 11 has a built-in battery box, and a battery module for providing power to the motor 7 is installed inside the battery box. The battery box has a pair of grooves 111, which are symmetrically arranged about the battery box.

[0038] Specifically, the power of the motor 7 is provided by the battery module in the battery box. The symmetrically arranged grooves 111 in the battery box can effectively reduce the weight of the chassis 1 while ensuring the strength of the chassis 1, making the whole device lighter. At the same time, it can make the weight of the chassis 1 evenly distributed, avoiding operator fatigue caused by uneven weight distribution.

[0039] like Figures 1-2 As shown, in this embodiment, the surface of pulley 22 is covered with a polyurethane elastic layer, and the thickness of the polyurethane elastic layer is 3-5mm.

[0040] By coating the surface of the pulley 22 with a polyurethane elastic layer, some vibration can be absorbed when the pulley 22 contacts the ground, reducing the rigid collision between the pulley 22 and the ground, and also reducing the resistance of the floor scrubber when it is pushed.

[0041] like Figures 1-2As shown, in this embodiment, the main wheel 3 adopts a hollow hub structure, and a counterweight cavity is provided inside the hub. The counterweight cavity can be filled with a counterweight block with a weight of 0.5kg-2kg.

[0042] By filling the counterweight cavity with counterweight blocks, the overall center of gravity of the floor scrubber can be flexibly adjusted. The center of gravity of the machine can be adaptively adjusted according to the weight of the battery module or the weight of the brush 6, thereby making the center of the main wheel 3 lower and improving the overall stability of the equipment. The weight of the counterweight blocks can be selected according to the actual situation and is not limited here.

[0043] Of course, those skilled in the art will recognize that this invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0045] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A floor scrubbing machine, characterized in that, include: The chassis (1) consists of a main body (11) and a connecting frame (12). The chassis (1) has main wheels (3) symmetrically arranged at the bottom. A water tank (4) is installed on the top of the chassis (1). A handrail (41) is connected to the top of the water tank (4). The cleaning mechanism includes a connecting plate (9) hinged to the connecting frame (12), a motor (7) mounted on the connecting plate (9), a brush (6) connected to the point, and an arc-shaped squeegee (10) surrounding the outer edge of the brush (6). The pressure regulating assembly (5) includes a screw (52) that passes through the connecting frame (12), a knob (51) fixed to the end of the screw (52), and a compression spring (53) sleeved on the screw (52). The front end of the screw (52) is hinged to the connecting plate (9), and the two ends of the compression spring (53) abut against the connecting frame (12) and the connecting plate (9) respectively. The auxiliary support assembly (2) includes a support frame (21) connected to the main body (11) and a pulley (22) installed on the support frame (21) and parallel to the axis of the main wheel (3).

2. The floor scrubber according to claim 1, characterized in that, The auxiliary support component (2) is located on the side of the chassis (1) facing away from the brush plate (6). When the brush plate (6) is in contact with the ground, the lowest point of the pulley (22) is higher than the lowest point of the main wheel (3).

3. The floor scrubbing machine according to claim 1, characterized in that, The end of the arc-shaped squeegee (10) is provided with a roller (8), the axis of the roller (8) is parallel to the axis of the main wheel (3), and the bottom of the roller (8) is flush with the bottom surface of the squeegee (10).

4. The floor scrubbing machine according to claim 3, characterized in that, The curvature center of the arc-shaped squeegee (10) coincides with the axis of the brush plate (6) and the coverage angle is 180 degrees. The inner surface of the arc-shaped squeegee (10) is provided with a flexible scraper extending along the arc direction, and the lower edge of the flexible scraper forms a continuous wave-shaped contact surface.

5. The floor scrubber according to claim 1, characterized in that, The main body (11) has a built-in battery box, which contains a battery module for providing power to the motor (7). The battery box has a pair of grooves (111) which are symmetrically arranged about the battery box.

6. The floor scrubbing machine according to claim 2, characterized in that, The surface of the pulley (22) is covered with a polyurethane elastic layer with a thickness of 3-5 mm.

7. The floor scrubber according to claim 1, characterized in that, The main wheel (3) adopts a hollow hub structure. The hub is equipped with a counterweight cavity, which can be filled with counterweight blocks weighing 0.5kg-2kg.