Cleaning rotating mechanism of indoor cleaning robot

Abstract

The utility model relates to a cleaning rotating mechanism of an indoor cleaning robot, a motor drives a shaft roller on a vertical rotating shaft through a belt, the rotating shaft is installed on a support through an axially staggered bearing, and the lower end of the rotating shaft is connected with the center of a cleaning disc. The cleaning liquid cylinder is fixed on the support, and a transverse output pipeline at the bottom of the cleaning liquid cylinder is connected to the upper end of the vertical rotating shaft through the rotating conduction assembly. The rotary conduction assembly is composed of an outer sleeve and a rotary connector, the outer sleeve communicates with the transverse output pipeline, the rotary connector is located in the outer sleeve and can rotate along with the vertical rotary shaft, the inlet end of the rotary connector alternately opens and closes the transverse output pipeline during rotation, and the outlet end is coaxially connected to the vertical rotary shaft. A lower outlet is formed in the center of the cleaning disc and used for conveying the cleaning liquid from the cleaning liquid cylinder to the cleaning disc. The mechanism realizes rotary cleaning and synchronous quantity-controlled conveying of cleaning liquid, has the advantages of high efficiency, compact structure, convenience in maintenance, high adaptability, low cost and the like, powerfully promotes technical progress of indoor cleaning robots, and has a wide market prospect.

Description

Technical Field

[0001] This utility model relates to a cleaning rotation mechanism, and more particularly to a cleaning rotation mechanism for an indoor cleaning robot. Background Technology

[0002] In recent years, indoor cleaning robots have become increasingly popular due to their convenience and efficiency, serving as cleaning assistants in many homes and commercial spaces. Currently, most indoor cleaning robots on the market suffer from insufficient synchronization in their cleaning fluid delivery systems during rotary cleaning. These robots typically employ two independent power systems: one to drive the rotary sweeping device, and the other to control the delivery of the cleaning fluid. For example, the rotation of the sweeping disc is directly driven by a motor or achieved through simple mechanical transmission; while the delivery of the cleaning fluid relies on individual control by devices such as solenoid valves and pumps, lacking an effective synchronization and coordination mechanism. Because the two power systems operate independently, it is difficult to accurately control the amount of cleaning fluid delivered based on the real-time rotation speed and state of the sweeping disc. This can lead to insufficient or excessive cleaning fluid supply during high-speed rotary cleaning, affecting the cleaning effect. In some robots, the delivery of cleaning fluid is completely unrelated to the rotary sweeping action; it can only spray a fixed amount according to a preset program, failing to achieve truly synchronized and controlled delivery of cleaning fluid. This significantly limits the cleaning performance and applicability of indoor cleaning robots in complex and changing indoor environments. Utility Model Content

[0003] To address the shortcomings of the aforementioned technologies, this utility model provides a cleaning rotation mechanism for an indoor cleaning robot.

[0004] To solve the above technical problems, the technical solution adopted by this utility model is: a cleaning rotation mechanism for an indoor cleaning robot, comprising:

[0005] Internal support structure of the robot;

[0006] The motor drives the rollers on the vertical rotating shaft via a belt.

[0007] The vertical rotating shaft is mounted on the internal support of the robot through an axially misaligned bearing, and the lower end of the vertical rotating shaft is installed at the center of the cleaning tray.

[0008] The cleaning fluid tank is mounted on the internal support of the robot, and a horizontal output pipe is provided at the bottom of the cleaning fluid tank;

[0009] A rotary conductive assembly, connected to the upper end of a vertical rotating shaft, is used to alternately open and close the connection to the cleaning fluid cylinder when the vertical rotating shaft rotates.

[0010] The rotating conduction component includes:

[0011] The outer casing connects to the horizontal output pipeline;

[0012] The rotary joint is fitted inside the outer sleeve and can rotate circumferentially. The inlet end of the rotary joint alternately opens / closes during rotation to connect the horizontal output pipeline, and the outlet end of the rotary joint is coaxially connected to the vertical rotating shaft.

[0013] The vertical rotating shaft is hollow inside, and a lower outlet is formed in the center of the cleaning tray to transport the cleaning fluid from the cleaning fluid cylinder to the cleaning tray.

[0014] Furthermore, the rotary joint has at least one opening at its inlet end, and the outer sleeve has a liquid inlet hole that communicates with the transverse output pipeline. During rotation, the opening and the liquid inlet hole are intermittently aligned to achieve the function of alternately opening and closing the connection to the transverse output pipeline.

[0015] Furthermore, the axially misaligned bearing includes two bearings, which are respectively located at the lower and middle parts of the vertical shaft, and the two bearings are misaligned in the axial direction of the vertical shaft to ensure the stable rotation of the vertical shaft and to support the radial and axial forces it bears.

[0016] Furthermore, the center of gravity of the cleaning fluid cylinder is higher than that of the rotating conductive assembly to utilize gravity to assist the flow of the cleaning fluid; and the cleaning fluid cylinder has an upper opening to facilitate the replenishment and replacement of the cleaning fluid.

[0017] This invention provides a cleaning rotation mechanism for an indoor cleaning robot. Compared to existing indoor cleaning robots that typically employ two independent power systems, making precise synchronization of rotational cleaning and cleaning fluid delivery difficult, this patent achieves synchronized and controlled delivery through a single, interconnected power system. The motor in its transmission component drives the vertical rotating shaft and cleaning disc to rotate, while simultaneously, this shaft drives the rotary joint of the rotating conduction component to rotate, alternately opening and closing the lateral output pipeline according to the rotation angle. This enables on-demand delivery of cleaning fluid, perfectly solving the synchronization problem and ensuring precise matching between cleaning fluid supply and cleaning actions, thus efficiently completing the cleaning task.

[0018] Our organization boasts significant advantages in improving cleaning efficiency and quality. Traditional technologies, due to synchronization challenges, are prone to over- or under-supply of cleaning fluid, affecting cleaning performance. This patented technology precisely delivers cleaning fluid according to cleaning needs. The coordinated design of motor speed adjustment and rotary joint parameters enables quantitative control of cleaning fluid delivery, avoiding resource waste and cleaning blind spots, ensuring stable and high-quality cleaning results, and adapting to different scenario requirements.

[0019] The integrated and compact structure is also a highlight of this patent. Existing technologies have independent power and conveying systems that occupy space and have complex structures. This mechanism integrates the transmission and conveying functions into a vertical rotating shaft. The axially misaligned bearing layout optimizes space utilization, and the compact design of the rotating conduction component is embedded in the upper end of the rotating shaft. The overall layout is ingenious and meets the internal space requirements of most indoor cleaning robots, which is conducive to product miniaturization and weight reduction, and expands the scope of market applications.

[0020] This patent also boasts excellent maintainability and adaptability. The design of each component facilitates disassembly and replacement, such as the detachable installation of the cleaning fluid cylinder and the connection method between the cleaning tray and the vertical rotating shaft, simplifying the maintenance process. Parameter adjustments are flexible; motor power, cleaning fluid cylinder capacity, and details of the rotating conductive components can all be optimized and configured according to requirements, adapting to different robot designs and cleaning tasks, and fully meeting diverse market demands.

[0021] Furthermore, this patent is cost-effective. One power system replaces two systems, reducing hardware costs and energy consumption. The compact structure reduces material usage, and production and maintenance costs are also reduced accordingly, enhancing the robot's market competitiveness and creating favorable conditions for the widespread adoption of efficient cleaning technologies.

[0022] In summary, the indoor cleaning robot's rotating mechanism of this utility model, with its advantages of precise synchronous delivery, efficient cleaning, compact integration, easy maintenance, strong adaptability, and cost-effectiveness, comprehensively solves the background technical problems, brings innovative progress to the field of indoor cleaning robots, and has significant market potential and application value. Attached Figure Description

[0023] Figure 1 This is a partial structural schematic diagram of the present invention.

[0024] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 3 for Figure 2 The main view.

[0026] Figure 4 This is a bottom view of the cleaning disc.

[0027] Figure 5 This is a 3D view of the rotating conduction component.

[0028] Figure 6 This is the main view of the rotating conduction component.

[0029] In the diagram: 1. Internal support frame of the robot; 2. Motor; 3. Belt; 4. Vertical rotating shaft; 5. Shaft roller; 6. Bearing; 7. Cleaning tray; 8. Cleaning liquid cylinder; 9. Horizontal output pipeline; 10. Rotary conduction assembly; 101. Outer casing; 102. Rotary joint; 11. Lower outlet. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1-3 As shown, the cleaning rotation mechanism of the indoor cleaning robot in this embodiment mainly consists of two parts:

[0032] The first part is the transmission assembly, including a motor 2, a belt 3, a vertical rotating shaft 4, rollers 5, and bearings 6. The motor 2 is fixedly mounted on the robot's internal support 1, serving as the power source for the entire mechanism. The motor's output shaft is connected to the belt 3, and the other end of the belt is connected to rollers 5 on the vertical rotating shaft 4. The vertical rotating shaft 4 is rotatably mounted on the robot's internal support 1 via axially offset bearings 6. Specifically, the axially offset bearings consist of two bearings, respectively installed at the lower and middle positions of the vertical rotating shaft 4, with a certain offset distance between the two bearings along the axial direction of the vertical rotating shaft. This design ensures that the vertical rotating shaft remains stable during rotation and can effectively withstand radial and axial forces, guaranteeing the reliability and stability of the mechanism during operation. The lower end of the vertical rotating shaft 4 is mounted at the center of the cleaning disc 7, thereby driving the cleaning disc to rotate and achieve the rotating cleaning function of the floor.

[0033] The second part is the cleaning fluid delivery assembly, which includes a hollow structure of a cleaning fluid cylinder 8, a horizontal output pipe 9, a rotary guide assembly 10, and a vertical rotating shaft 4. The cleaning fluid cylinder 8 is mounted on the robot's internal support 1, with its center of gravity higher than the rotary guide assembly 10, utilizing gravity to assist the flow of the cleaning fluid. The bottom of the cleaning fluid cylinder has a horizontal output pipe 9, which is connected to the upper end of the vertical rotating shaft 4 via the rotary guide assembly 10. The vertical rotating shaft 4 is hollow inside. Figure 4 As shown, a lower outlet 11 is formed in the center of the cleaning tray 7, which is used to transport the cleaning fluid from the cleaning fluid cylinder to the cleaning tray.

[0034] like Figure 5 and Figure 6As shown, the rotary guide assembly 10 is a key component for achieving synchronous and controlled delivery of the cleaning fluid, including an outer casing 101 and a rotary joint 102. The outer casing 101 connects to the horizontal output pipe 9, and the rotary joint 102 is fitted inside the outer casing and can rotate circumferentially with the vertical rotating shaft 4. The inlet end of the rotary joint 102 has an opening, and the outer casing 101 has a liquid inlet hole that connects to the horizontal output pipe 9. When the vertical rotating shaft 4 rotates, it drives the rotary joint 102 to rotate synchronously. The opening of the rotary joint and the liquid inlet hole of the outer casing periodically align and stagger during the rotation, thereby realizing the function of alternately opening and closing the connection to the horizontal output pipe 9. When the opening is aligned with the liquid inlet hole, the cleaning fluid flows into the rotary joint 102, enters the internal hollow channel of the vertical rotating shaft 4 through its outlet end, and finally flows out from the lower outlet 11 at the center of the cleaning disc 7, spraying onto the area that needs to be cleaned. In conjunction with the rotating cleaning disc, it achieves a more efficient cleaning effect.

[0035] During operation, after the motor 2 starts, it drives the shaft roller 5 to rotate via the belt 3, which in turn drives the vertical rotating shaft 4 and the cleaning disc 7 to rotate, cleaning the floor. Simultaneously, the cleaning fluid in the cleaning fluid cylinder 8 flows from the horizontal output pipe 9 at the bottom to the rotating guide assembly 10 under the influence of gravity or pressure. When the vertical rotating shaft 4 rotates, it drives the rotary joint 102 to rotate circumferentially. The inlet end of the rotary joint 102, depending on its internal structure and rotation angle, periodically connects or disconnects with the horizontal output pipe 9 during rotation, thus alternately opening and closing the connection to the cleaning fluid cylinder 8. By controlling the motor speed, the structural parameters of the rotary joint, and the pressure inside the cleaning fluid cylinder, precise control of the cleaning fluid delivery volume can be achieved, meeting the needs of different cleaning scenarios and improving cleaning efficiency and quality.

[0036] Furthermore, in practical applications, the size, material, and installation position of each component can be optimized and adjusted according to the overall design and cleaning requirements of the indoor cleaning robot. For example, appropriate motor power and speed can be selected to match cleaning trays of different sizes and materials; the capacity and shape of the cleaning liquid tank, as well as the structural details of the rotating guide assembly, such as the size, opening size, and relative position of the outer casing and rotary joint, can be determined according to the needs of the cleaning task to ensure reliable operation of the cleaning rotation mechanism and optimal cleaning effect.

[0037] It is important to note that in the rotary conductive assembly, there is relative rotation between the rotary joint 102 and the outer sleeve 101. If the sealing measures are inadequate, cleaning fluid leakage may occur. In practice, sealing rings or gaskets can be used at the mating points of the rotary joint 102 and the outer sleeve 101. For example, corrosion-resistant and wear-resistant rubber sealing rings can be used to ensure a tight fit during rotation and prevent liquid leakage. The connection between the rotary joint 102 and the vertical rotating shaft 4, as well as the connection between the horizontal output pipe 9 and the outer sleeve 101, should also be strictly sealed. Methods such as welding, threaded connections with sealant can be used to prevent cleaning fluid leakage from these points. Regular inspection and replacement of the sealing components are necessary to ensure the reliability of their sealing performance.

[0038] Meanwhile, when the robot stops, based on this patent, subsequent designs need to ensure that the rotary joint 102 stops at the position where the horizontal output pipe 9 is closed to prevent accidental leakage of cleaning fluid. However, due to factors such as inertia, the rotary joint 102 may not be able to stop precisely at the required position. In the robot's control system, the target position of the rotary joint 102 when stopping is preset to the position where the horizontal output pipe 9 is closed. By controlling the motor's speed and rotation angle, the rotary joint 102 is gradually decelerated and its position is precisely adjusted before stopping, so that it can stop accurately in the closed position. For example, a limiting device or positioning pin is set near the rotary joint 102. When stopping, the limiting device or positioning pin is used to physically limit the rotary joint 102 to ensure that it stops in the closed position. For example, a positioning pin is set on the outer casing 101 corresponding to the groove or hole on the rotary joint 102. When stopping, the positioning pin is inserted into the groove or hole by a spring or other driving device to fix the rotary joint 102 in the closed position. Alternatively, a motor with a braking function can be used. When the machine stops, the motor's braking system can quickly stop the rotation of the vertical shaft 4 and the rotary joint 102, fixing them at the position at the moment of stopping. Combined with the precise control of the control system, this increases the probability of the rotary joint 102 stopping in the closed position.

[0039] It should be clarified that while the leakage issues of the rotary conductive component and the control of the rotary joint position during shutdown mentioned above need to be considered and resolved in practical applications, they are not the technical problems directly addressed by this patent. The core innovation of this utility model patent lies in proposing a cleaning rotation mechanism for an indoor cleaning robot that achieves synchronous and controlled delivery of cleaning fluid through a single power system. This aims to solve the problem in existing technologies where it is difficult to achieve precise delivery of cleaning fluid and cleaning fluid simultaneously through a single power system. The patent protects this innovative mechanism design and its functions, namely, using a motor to drive the vertical rotating shaft and cleaning disc to rotate while simultaneously achieving synchronous and controlled delivery of cleaning fluid through the special structure of the rotary conductive component. The aforementioned leakage and shutdown position control issues can be solved through conventional engineering techniques and are not the focus of this patent.

[0040] In summary, the indoor cleaning robot's rotating cleaning mechanism of this utility model, through ingenious design and reasonable structural layout, effectively combines rotating cleaning with synchronous controlled delivery of cleaning fluid, providing a more efficient, flexible, and practical cleaning solution for indoor cleaning robots, and has good application prospects and market potential.

Claims

1. A cleaning rotation mechanism for an indoor cleaning robot, characterized in that, include: Internal support structure of the robot; The motor drives the rollers on the vertical rotating shaft via a belt. The vertical rotating shaft is mounted on the internal support of the robot through an axially misaligned bearing, and the lower end of the vertical rotating shaft is installed at the center of the cleaning tray. The cleaning fluid tank is mounted on the internal support of the robot, and a horizontal output pipe is provided at the bottom of the cleaning fluid tank; A rotary conductive assembly, connected to the upper end of a vertical rotating shaft, is used to alternately open and close the connection to the cleaning fluid cylinder when the vertical rotating shaft rotates. The rotating conduction component includes: The outer casing connects to the horizontal output pipeline; The rotary joint is fitted inside the outer sleeve and can rotate circumferentially. The inlet end of the rotary joint alternately opens / closes during rotation to connect the horizontal output pipeline, and the outlet end of the rotary joint is coaxially connected to the vertical rotating shaft. The vertical rotating shaft is hollow inside, and a lower outlet is formed in the center of the cleaning tray to transport the cleaning fluid from the cleaning fluid cylinder to the cleaning tray.

2. The cleaning rotation mechanism of the indoor cleaning robot according to claim 1, characterized in that: The rotary joint has at least one opening at its inlet end, and an inlet hole on its outer sleeve that communicates with the transverse output pipeline. During rotation, the opening and the inlet hole are intermittently aligned to achieve the function of alternately opening and closing the connection to the transverse output pipeline.

3. The cleaning rotation mechanism of the indoor cleaning robot according to claim 1, characterized in that: The axially misaligned bearing includes two bearings, which are respectively located at the lower and middle parts of the vertical shaft. The two bearings are misaligned in the axial direction of the vertical shaft to ensure the stable rotation of the vertical shaft and to support the radial and axial forces it bears.

4. The cleaning rotation mechanism of the indoor cleaning robot according to claim 1, characterized in that: The center of gravity of the cleaning fluid cylinder is higher than that of the rotating conductive assembly so that gravity assists the flow of the cleaning fluid; and the cleaning fluid cylinder has an upper opening to facilitate the replenishment and replacement of the cleaning fluid.

Images