A V-shaped automatic lifting dusting fork

Abstract

The utility model relates to a kind of V-type automatic lifting dust suction, belong to cleaning equipment technical field, it is applicable to scrubber or scrubbing robot application.The dust suction structure includes V-type dust suction, dust-collecting rubber plate, lifting device and sliding positioning shaft group.Protrusion of V-type dust suction two sides is arranged towards front, and dust suction hose joint is equipped above middle part of dust suction, dust-collecting rubber plate is fixed by clamping strip in the rear of dust suction.It is composed of electric push rod, lifting plate and mounting plate by the lifting device, and the automatic lifting function of dust suction is realized in combination with sliding positioning shaft group.The utility model is through V-type structure front gathering and suction cleaning small scattered garbage, and through automatic lifting function realizes flexible obstacle crossing, solves the existing scrubber or scrubbing robot in cleaning easy to cause blockage, jam or because of brush disc rotation hits garbage and other problems by small scattered garbage, significantly improves cleaning efficiency and the reliability of equipment.

Description

Technical Field

[0001] This utility model belongs to the field of cleaning equipment technology, specifically relating to a V-shaped automatic lifting vacuum squeegee suitable for floor scrubbers or floor scrubbing robots. Background Technology

[0002] Currently, existing floor scrubbers or robotic scrubbers primarily clean the floor by first scrubbing it with a disc brush or roller brush, followed by vacuuming with a squeegee. However, small scattered debris such as pebbles, scraps of paper, and fabric fragments often remain on the surface, easily causing equipment blockages, jams, or being thrown into the air by the high-speed rotation of the disc brush. This can lead to equipment malfunctions, affecting cleaning efficiency and effectiveness, and even causing property damage. To solve these problems, additional sweeping machinery or manual pre-cleaning of these small scattered debris is usually required, increasing costs rather than reducing them. Therefore, to promote the application of floor scrubbers or robotic scrubbers, there is an urgent need for a vacuuming device that integrates pre-treatment functions and can adapt to complex floor environments. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a V-shaped automatic lifting vacuum squeegee, which is installed on a floor scrubber or floor cleaning robot. Through structural optimization, it achieves the collection and pre-cleaning of small, scattered debris, while ensuring its ability to traverse common obstacles such as speed bumps. This guarantees the normal and stable operation of the floor scrubber or floor cleaning robot, reducing maintenance costs while improving cleaning efficiency. The technical solution of this utility model is as follows (see attached). Figure 1 (as shown)

[0004] First, the vacuum cleaner (1) is designed in a V-shape with the protruding parts on both sides facing forward. At the rear edge of the vacuum cleaner (1), a dust-collecting rubber plate (2) is fixed using a clamping strip (3). The vacuum cleaner (1) has a vacuum hose connector (4) at the top center, which can be connected to a hose. With this V-shaped structure design, small scattered debris can be pre-gathered in the center and removed by negative pressure suction while the floor scrubber or floor cleaning robot is moving. At the same time, combined with the blocking effect of the dust-collecting rubber plate (2) at the rear edge, a small amount of small scattered debris that is not sucked away in time will also be gradually sucked up during the process of moving, without passing through the vacuum cleaner and affecting the brush plate and squeegee behind it.

[0005] Secondly, a U-shaped fixing bracket (5) is located above the vacuum cleaner (1), which is fixed to the vacuum cleaner (1) by hand-tightening screws, thus facilitating the assembly and disassembly of the vacuum cleaner (1). The U-shaped fixing bracket (5) is installed above the vertically arranged lifting plate (6). An electric push rod (7) is connected to the center of the lifting plate (6). There is a set of sliding positioning shaft assemblies on each side of the electric push rod (7), and each set of sliding positioning shaft assemblies consists of a linear bearing seat (8), a sliding shaft (9), and a shaft seat (10). The shaft seats (10) of both sets of sliding positioning shaft assemblies are fixed to the bottom of the mounting plate (11) above the electric push rod (7). The mounting plate (11) needs to be installed below the base plate in front of the brush of the floor scrubber or floor scrubbing robot.

[0006] The above parts constitute the lifting part of this utility model. When the electric push rod (7) extends, the vacuum cleaner (1) is tightly connected to the ground and can perform vacuuming work normally; when the electric push rod (7) retracts, the vacuum cleaner (1) is raised, allowing the robot to cross obstacles such as speed bumps or gentle slopes, avoiding damage to the mechanical structure by squeezing. The sliding positioning shaft group is symmetrically distributed on both sides of the electric push rod (7), which can enhance the robustness of the robot's forward direction, ensure the stability of the lifting process, and reduce the possibility of bending of the sliding shaft (9) due to accidental impacts in the forward direction.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. The V-shaped design forms a guiding channel. When the floor scrubber or floor scrubbing robot moves, the V-shaped suction squeegee can effectively collect small scattered debris and clean it up before the brush pads start scrubbing, thereby reducing the risk of the equipment being clogged by debris during operation.

[0009] 2. By adding a flexible dust-collecting rubber baffle to the rear edge of the vacuum cleaner brush, its bottom remains elastically attached to the ground, which can effectively block residual garbage and ensure that the brush plate behind it is clean without interference.

[0010] 3. The electric lifting system can adapt to obstacles such as speed bumps or gentle slopes, ensuring the basic obstacle-crossing ability of cleaning equipment such as floor scrubbers or floor scrubbing robots, and is especially suitable for ground environments such as garages and shopping malls;

[0011] 4. By adopting a sliding positioning shaft assembly, damage caused by ground bumps or impacts can be effectively dealt with, thereby enhancing the stability of the entire structure and extending its service life. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Appendix Figure 2 This is an example diagram of the installation of this utility model. Detailed Implementation

[0014] The following is in conjunction with the appendix Figure 2 The specific embodiments of this utility model will be described in detail so that those skilled in the art can clearly understand the implementation process of this technical solution.

[0015] Example: Application of V-shaped automatic lifting vacuum squeegee in floor cleaning robot

[0016] 1. Structural components and their connections

[0017] Vacuum cleaner (1): Made of high-strength aluminum alloy, the overall structure is V-shaped with an opening angle of 120°. The protruding parts on both sides are arranged forward to form a guide slope. The bottom edge of the vacuum cleaner (1) is arc-shaped, and the contact surface with the ground is covered with a wear-resistant rubber layer to reduce the resistance of movement. When the floor cleaning robot moves, the V-shaped structure gathers the scattered small debris (such as small stones, paper scraps, etc.) in front of it towards the center, thereby improving the vacuuming efficiency.

[0018] Dust-collecting rubber plate (2) and clamping strip (3): The dust-collecting rubber plate (2) is fixed to the rear edge of the vacuum cleaner (1) by the clamping strip (3). The clamping strip (3) is made of stainless steel, connected by bolts, and is detachable for easy replacement or cleaning. The dust-collecting rubber plate (2) is made of natural rubber, which can enhance the adhesion to the ground, prevent small debris from escaping from the edge and affecting the cleaning of the brush plate behind, and has a certain degree of elasticity and wear resistance, which can effectively block debris and reduce wear on the vacuum cleaner (1).

[0019] Vacuum hose connector (4): Located above the middle of the vacuum cleaner (1), it is connected to the hose (13) through the flange interface, and the other end of the hose is connected to the negative pressure vacuuming system of the floor cleaning robot (suction ≥15kPa).

[0020] The Z-shaped fixing frame (5) is formed by bending galvanized steel plate and is connected to the top of the vacuum cleaner (1) by two sets of hand-tightened screws, which facilitates quick disassembly and maintenance.

[0021] Lifting plate (6): It is longitudinally fixed above the Z-shaped fixing frame (5), and is made of galvanized steel plate. It has a threaded hole in the center and is fixed to the telescopic end of the electric push rod (7) by bolts.

[0022] Electric actuator (7): stroke 30mm, thrust 60N, response time ≤5 seconds. The tail of the actuator is fixed to the bottom of the mounting plate (11) via a flange.

[0023] Lifting device: It consists of an electric push rod (7), a lifting plate (6) and a mounting plate (11). The electric push rod (7) drives the lifting plate (6) to lift the dust suction hood (1).

[0024] Sliding positioning shaft assembly: There are two sets, located on the front and rear sides of the electric push rod (7). Each set includes a linear bearing seat (8), a sliding shaft (9), and a shaft seat (10). The sliding shaft (9) has a diameter of 10mm, is chrome-plated, and mates with the linear bearing seat (8) to ensure smooth longitudinal sliding. The shaft seat (10) is fixed to the bottom of the mounting plate (11) by bolts, and the mounting plate (11) is mounted on the base plate (12) of the floor cleaning robot.

[0025] 2. Workflow and Control Logic

[0026] (1) Vacuuming mode

[0027] When the floor cleaning robot starts, the central controller drives the electric push rod (7) to extend according to the preset program, and the lifting plate (6) drives the dust suction squeegee (1) to press down, so that the edge of the dust collection rubber plate (2) is in close contact with the ground. During the robot's movement, the front slope of the V-shaped dust suction squeegee (1) guides small scattered garbage on the ground to the middle area, and the suction hose connector (4) sucks the accumulated garbage into the dust collection box through negative pressure suction. The serrated structure of the dust collection rubber plate (2) effectively blocks garbage that is not sucked away in time, preventing it from entering the brush area behind.

[0028] (2) Obstacle crossing mode

[0029] When the sensor at the front of the robot detects an obstacle with a height ≥20mm (such as a speed bump, a gentle slope, etc.), the central controller immediately sends a command to retract the electric push rod (7), and the vacuum cleaner (1) is raised by 30mm to ensure sufficient safety clearance between the robot chassis and the obstacle. Through the coordinated action of the linear bearing seat (8) of the sliding positioning axis group and the sliding shaft (9), the lifting structure is restricted to move only longitudinally to avoid lateral displacement that could cause structural deformation. After overcoming the obstacle, the electric push rod (7) automatically resets to the vacuuming mode, and the vacuum cleaner (1) re-adheres to the ground.

[0030] (3) Technical effects

[0031] Vacuuming and anti-clogging effect: The V-shaped structure combined with high negative pressure suction can pre-process more than 90% of small scattered garbage, reducing the clogging rate of the floor cleaning robot brush by ≥80%.

[0032] Adaptive obstacle crossing capability: The electric push rod is linked with the sensor, and the lifting response time is ≤5 seconds, ensuring the robot's ability to pass through complex terrain.

[0033] Modular maintenance effect: The design of hand-tightening screws and detachable clips makes the replacement time of the vacuum cleaner (1) and dust collection rubber plate (2) ≤ 5 minutes.

Claims

1. A V-shaped automatic lifting vacuum cleaner brush, characterized in that, include: The vacuum cleaner (1) has protrusions on both sides facing forward, and a vacuum hose connector (4) is provided in the upper middle. The dust-collecting rubber sheet (2) is fixed to the rear edge of the vacuum cleaner (1) by a clamp (3); The lifting device consists of an electric push rod (7), a lifting plate (6) and a mounting plate (11). The electric push rod (7) drives the lifting plate (6) to lift the dust suction hood (1). Two sets of sliding positioning shaft assemblies are provided. Each set includes a linear bearing seat (8), a sliding shaft (9), and a shaft seat (10), which are symmetrically distributed on both sides of the electric push rod (7) to stabilize the lifting trajectory. The Z-shaped mounting bracket (5) is installed above the vacuum cleaner (1) and below the lifting plate (6).

2. The V-shaped automatic lifting vacuum cleaner hood according to claim 1, characterized in that, The V-shaped design of the vacuum squeegee (1) allows small, scattered debris in front of the floor scrubber or floor cleaning robot to be gradually gathered in the middle by the vacuum squeegees (1) extending forward on both sides during operation, and then sucked away by the negative pressure suction from directly above.

3. The V-shaped automatic lifting vacuum cleaner hood according to claim 1, characterized in that, The dust-collecting rubber sheet (2) is made of rubber, which has a certain elasticity and wear resistance, and can effectively block garbage and reduce the wear on the vacuum cleaner (1).

4. A V-shaped automatic lifting vacuum cleaner hood according to claim 1, characterized in that, The zigzag fixing bracket (5) is fixed to the vacuum cleaner (1) by at least two hand-tightened screws to ensure the stability and reliability of the fixing.

5. A V-shaped automatic lifting vacuum cleaner hood according to claim 1, characterized in that, The central controller sends commands to control the extension and retraction of the electric push rod (7) to fully realize the automatic lifting function of the vacuum cleaner (1).

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