Suspension system of cleaning module of cleaning robot

Abstract

The present invention discloses a suspension system of a cleaning module of a cleaning robot, comprising a cleaning module, a fixed suspension, a double swing arm, a lower connecting rod and a gas spring; the fixed suspension is located at the front side of the cleaning module and is suspended and fixed at the bottom of the cleaning robot; the front end of the double swing arm is hinged to the upper end of the fixed suspension, and the two rear ends of the double swing arm are respectively hinged to the top two sides of the cleaning module; the front end of the lower connecting rod is hinged to the lower end of the fixed suspension, and the rear end of the lower connecting rod is hinged to the bottom middle position of the cleaning module. By forming a parallelogram structure composed of the lower connecting rod, the cleaning module, the fixed suspension and the double swing arm, the cleaning module is kept horizontal and parallel to the ground, and the gas spring is used to increase the downward pressure of the cleaning module, which effectively improves the cleaning effect of the cleaning module on the ground, bringing convenience to users.

Description

Technical Field

[0001] This invention relates to the field of cleaning robots, and in particular to a suspension system for the cleaning module of a cleaning robot. Background Technology

[0002] In recent years, with the development of the social economy and the improvement of family living standards, the cleaning of homes and other places has gradually entered the era of intelligence and mechanization. The cleaning robots that have emerged can liberate people from the cleaning work of homes and other places, effectively reduce people's workload in cleaning homes and other places, and alleviate the fatigue of people in the process of cleaning homes and other places.

[0003] Cleaning robots typically have a cleaning module suspended from their bottom. This module, consisting mainly of a roller brush and a suction device, is used to clean the ground. However, current cleaning modules suffer from improper design and installation, resulting in them not remaining perfectly horizontal and parallel to the ground. This affects their cleaning effectiveness and their ability to quickly navigate obstacles. Therefore, it is necessary to research a solution to address these issues. Summary of the Invention

[0004] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a suspension system for the cleaning module of a cleaning robot, which can effectively solve the problem of unreasonable design and installation of existing cleaning modules.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A suspension system for a cleaning module of a cleaning robot includes a cleaning module, a fixed suspension, a double swing arm, a lower link, and a gas spring. The fixed suspension is located at the front of the cleaning module and is suspended and fixed to the bottom of the cleaning robot. The front end of the double swing arm is hinged to the upper end of the fixed suspension, and the two rear ends of the double swing arm are respectively hinged to the top sides of the cleaning module. The front end of the lower link is hinged to the lower end of the fixed suspension, and the rear end of the lower link is hinged to the middle of the bottom of the cleaning module. The lower link, the cleaning module, the fixed suspension, and the double swing arm form a parallelogram structure. The gas spring is located between the double swing arm and the lower link, and its front and rear ends are respectively hinged to the fixed suspension and the cleaning module.

[0007] As a preferred embodiment, the cleaning module includes a roller brush mounting bracket and a roller brush disposed at the bottom of the roller brush mounting bracket.

[0008] As a preferred embodiment, the cleaning module includes a suction device. A swinging member that can swing left and right is provided at the middle position of the roller brush mounting frame. A swing arm is installed on both the left and right sides of the rear end of the swinging member. The rear end of the swing arm is connected to the suction device, and a tension spring is connected between the rear end of each swing arm and the roller brush mounting frame to reset the suction device to the middle.

[0009] As a preferred embodiment, the swing arm includes a main rod, an upper rod, a lower rod, and a connecting column; the front end of the main rod is fixedly connected to the swinging component, the upper rod and the lower rod are arranged parallel to each other vertically, the front ends of the upper rod and the lower rod are both pivotally connected to the rear end of the main rod, the rear ends of the upper rod and the lower rod are both pivotally connected to the front end of the connecting column, the rear end of the connecting column is connected to the suction device, and the rear end of the tension spring is connected to the lower rod.

[0010] As a preferred embodiment, the suction device has a connecting sleeve that is fitted over the connecting post, and an R-shaped pin is installed at the rear end of the connecting post to prevent the connecting sleeve from coming out.

[0011] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0012] The parallelogram structure, consisting of a lower linkage, cleaning module, fixed suspension, and double swing arms, ensures that the cleaning module remains horizontal and parallel to the ground, improving its ability to quickly pass through ground obstacles. Furthermore, the use of gas springs to increase the downforce of the cleaning module effectively enhances its cleaning effect on the ground, bringing convenience to users.

[0013] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0014] Figure 1 This is a three-dimensional assembly schematic diagram of a preferred embodiment of the present invention;

[0015] Figure 2 This is a three-dimensional schematic diagram of the assembly from another angle of a preferred embodiment of the present invention;

[0016] Figure 3 This is a three-dimensional schematic diagram of the assembly from another angle of a preferred embodiment of the present invention;

[0017] Figure 4 This is a front view of a preferred embodiment of the present invention;

[0018] Figure 5 This is a cross-sectional view of a preferred embodiment of the present invention.

[0019] Explanation of reference numerals in the attached diagram:

[0020] 10. Cleaning module 11. Roller brush mounting bracket

[0021] 12. Roller brush 13. Suction device

[0022] 131. Connecting sleeve; 14. Swinging component

[0023] 15. Swing arm 151. Main rod

[0024] 152. Upper rod body 153. Lower rod body

[0025] 154. Connecting post 16. Tension spring

[0026] 17. R-shaped pins; 20. Fixed suspension.

[0027] 30. Double swing arm assembly; 40. Lower connecting rod

[0028] 50. Gas spring 61. Screw. Detailed Implementation

[0029] Please refer to Figures 1 to 5 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a cleaning module 10, a fixed suspension 20, a double swing arm 30, a lower link 40, and a gas spring 50.

[0030] The cleaning module 10 includes a roller brush mounting bracket 11 and a roller brush 12 disposed at the bottom of the roller brush mounting bracket 11; furthermore, the cleaning module 10 includes a suction device 13, and a swing member 14 that can swing left and right is disposed at the middle position of the roller brush mounting bracket 11. A swing arm 15 is mounted on both the left and right sides of the rear end of the swing member 14. The rear end of the swing arm 15 is connected to the suction device 13, and a tension spring 16 is connected between the rear end of each swing arm 15 and the roller brush mounting bracket 11 to return the suction device 13 to its center position; the swing arm 15 includes a main rod 151, an upper rod body 152, a lower rod body 153, and a connecting post 154; the main rod 151 The front end is fixedly connected to the swing member 14. The upper rod 152 and the lower rod 153 are arranged parallel to each other vertically. The front ends of the upper rod 152 and the lower rod 153 are both pivotally connected to the rear end of the main rod 151. The rear ends of the upper rod 152 and the lower rod 153 are both pivotally connected to the front end of the connecting post 154. The rear end of the connecting post 154 is connected to the suction device 13. The rear end of the tension spring 16 is connected to the lower rod 153. The suction device 13 has a connecting sleeve 131, which is sleeved on the outside of the connecting post 154. The rear end of the connecting post 154 is equipped with an R-shaped pin 17 to prevent the connecting sleeve 131 from falling out.

[0031] The fixed suspension 20 is located on the front side of the cleaning module 10 and is suspended and fixed to the bottom of the cleaning robot (not shown in the figure). In this embodiment, the top of the fixed suspension 20 is fixedly installed to the bottom steel plate of the cleaning robot by a plurality of screws 61.

[0032] The front end of the double swing arm 30 is hinged to the upper end of the fixed suspension 20, and the two rear ends of the double swing arm 30 are respectively hinged to the top sides of the cleaning module 10.

[0033] The front end of the lower link 40 is hinged to the lower end of the fixed suspension 20, and the rear end of the lower link 40 is hinged to the bottom middle position of the cleaning module 10. The lower link 40, the cleaning module 10, the fixed suspension 20 and the double swing arm 30 form a parallelogram structure. In this embodiment, the lower link 40 is an adjustable length link.

[0034] The gas spring 50 is located between the double swing arm 30 and the lower connecting rod 40, and the front and rear ends of the gas spring 50 are hinged to the fixed suspension 20 and the cleaning module 10, respectively.

[0035] The working principle of this embodiment is described in detail below:

[0036] In use, the top of the fixed suspension 20 is fixedly installed to the bottom of the cleaning robot using multiple screws 61. During operation, the parallelogram structure composed of the lower connecting rod 40, cleaning module 10, fixed suspension 20, and double swing arm 30 ensures that the cleaning module 10 remains horizontal and parallel to the ground. Furthermore, the gas spring 50 remains extended to increase the downward pressure of the cleaning module 10, improving its contact with the ground for effective cleaning. When not in operation, the entire product is raised, and the cleaning module 10 remains horizontal and parallel to the ground, allowing for quick passage over obstacles.

[0037] In addition, when the cleaning robot turns left or right, the suction device 13 can swing left and right, so that the suction device 13 can automatically enter the leakage coverage point to reduce the leakage of the cleaning robot. At the same time, the main rod 151, the upper rod 152, the lower rod 153 and the connecting column 154 form a parallelogram structure that can make the suction device 13 parallel to the ground.

[0038] The key design feature of this invention is that by using a parallelogram structure composed of a lower connecting rod, a cleaning module, a fixed suspension, and a double swing arm, the cleaning module remains horizontal and parallel to the ground, improving its ability to quickly pass through ground obstacles. Furthermore, by utilizing a gas spring to increase the downward pressure of the cleaning module, the cleaning effect on the ground is effectively improved, bringing convenience to the user.

[0039] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A suspension system for a cleaning module of a cleaning robot, Features: The cleaning robot comprises a cleaning module, a fixed suspension, a double swing arm, a lower connecting rod and a gas spring; the fixed suspension is located at the front side of the cleaning module and is suspended and fixed at the bottom of the cleaning robot; the front end of the double swing arm is hinged to the upper end of the fixed suspension, and the two rear ends of the double swing arm are respectively hinged to the two sides of the top of the cleaning module; the front end of the lower connecting rod is hinged to the lower end of the fixed suspension, and the rear end of the lower connecting rod is hinged to the middle position of the bottom of the cleaning module, and the lower connecting rod, the cleaning module, the fixed suspension and the double swing arm form a parallelogram structure; the gas spring The gas spring is located between the double swing arm and the lower connecting rod, and the front and rear ends of the gas spring are respectively hinged to the fixed suspension and the cleaning module; the cleaning module includes a roller brush mounting frame and a roller brush arranged at the bottom of the roller brush mounting frame; the cleaning module includes a suction scraper device, and a swinging member that can swing left and right is arranged in the middle position of the roller brush mounting frame, and a swing arm is installed on both sides of the left and right sides of the rear end of the swinging member, and the rear end of the swing arm is connected to the suction scraper device, and a tension spring is connected between the rear end of each swing arm and the roller brush mounting frame to reset the suction scraper device to the middle.

2. The suspension system of the cleaning module of the cleaning robot according to claim 1, Features: The swing arm includes a main rod, an upper rod body, a lower rod body and a connecting column; the front end of the main rod is fixedly connected to the swing member, the upper rod body and the lower rod body are arranged parallel to each other, the front end of the upper rod body and the front end of the lower rod body are both pivotally connected to the rear end of the main rod, the rear end of the upper rod body and the rear end of the lower rod body are both pivotally connected to the front end of the connecting column, the rear end of the connecting column is connected to the suction device, and the rear end of the tension spring is connected to the lower rod body.

3. The suspension system of the cleaning module of the cleaning robot according to claim 2, Features: The suction and scraping device is provided with a connecting sleeve, which is arranged outside the connecting column, and an R-shaped pin is installed at the rear end of the connecting column to prevent the connecting sleeve from coming out.

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