Sweeping robot connected scraping strip

By using integrated molding technology to manufacture the integrated scraper blades of the sweeping robot, the problems of complicated and costly scraper blade assembly are solved, achieving efficient assembly and cost reduction while improving cleaning performance.

CN224085253UActive Publication Date: 2026-04-07DONGGUAN CITY ZHUO YI PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The assembly process for the scraper blades of existing robotic vacuum cleaners is cumbersome and costly, making efficient assembly difficult.

Method used

The integrated scraper blade of the sweeping robot is manufactured using one-piece molding technology, including the mounting part, the first floating part, the second floating part, and the cleaning part. It uses TPV and rigid TPU materials and is manufactured through one-piece injection molding, which simplifies the assembly process and reduces costs.

Benefits of technology

It achieves efficient assembly of the robot vacuum cleaner's scraper blades, reduces manufacturing costs, and improves cleaning performance by reducing friction and noise through the design of floating components.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224085253U_ABST
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Abstract

The utility model provides a floor mopping robot conjoined scraping strip which comprises an installation portion, a first floating portion, a second floating portion and a sweeping portion which are integrally formed, the upper end of the first floating portion is connected to the left side of the installation portion, the lower end of the first floating portion inclines along the left side, and the second floating portion is in a U shape with a leftward opening. The upper end of an opening of the second floating part is connected to the lower end of the first floating part, the upper end of the sweeping part is connected to the lower end of the opening of the second floating part, the lower end of the sweeping part inclines leftwards, and a ground contact protruding strip protruding downwards is arranged at the bottom of the sweeping part. The mounting part, the first floating part, the second floating part and the cleaning part are subjected to injection molding at the same time, the assembling procedure of the floating structure and the mounting part can be omitted, the assembling efficiency is improved, and the manufacturing cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of sweeping machine structure, and in particular to a sweeping robot with an integrated scraper. Background Technology

[0002] With the improvement of living standards and the development of technology, more and more families are starting to use robotic vacuum cleaners. The cleaning modules of existing robotic vacuum cleaners generally include side brushes and roller brushes. The side brush is located on one side of the bottom of the robot, while the roller brush is located in the center of the bottom. During cleaning, the side brush sweeps debris from the surrounding area to the bottom of the robot, and then the roller brush mainly sweeps the debris from the floor into the dustbin. The roller brush is installed in an opening on the bottom of the robot and needs to be further secured by a roller brush cover. The roller brush cover has openings to expose the roller brush and scrapers that work in conjunction with the roller brush for cleaning. During cleaning, the scrapers contact the floor to remove dust, water stains, and other debris, and the roller brush sweeps the debris into the robot's dustbin.

[0003] In traditional scraper structures, the scraper is assembled onto the robot's shell via a floating component. This floating component allows the scraper to swing at a certain angle as it scrapes the floor, following the undulations of the surface. However, the floating component is usually manufactured separately and then assembled with the scraper and shell, making the assembly process cumbersome and costly. Therefore, it is necessary to develop a scraper that is integrated into the robot to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a robotic vacuum cleaner with an integrated scraper blade to solve the problems mentioned in the background art.

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

[0006] A robotic vacuum cleaner with an integrated scraper blade includes an integrally formed mounting part, a first floating part, a second floating part, and a cleaning part. The upper end of the first floating part is connected to the left side of the mounting part, and the lower end of the first floating part is inclined to the left. The second floating part is U-shaped with an opening to the left. The upper end of the opening of the second floating part is connected to the lower end of the first floating part. The upper end of the cleaning part is connected to the lower end of the opening of the second floating part, and the lower end of the cleaning part is inclined to the left. The bottom of the cleaning part is provided with a downward-protruding contact strip.

[0007] Further description of this utility model: The first floating part is made of TPV material, and the mounting part, the second floating part and the cleaning part are all made of rigid TPU material.

[0008] Further description of the present invention: The mounting part includes a mounting strip and a plug strip. The upper end of the first floating part is connected to the left side of the mounting strip. Multiple sets of mounting through holes are evenly arranged along the length direction on the mounting strip. The plug strip is connected to the lower end of the mounting strip and corresponds to one side of the mounting through holes.

[0009] Further description of the present invention: The mounting part is provided with mounting bosses, and two sets of mounting bosses are provided in each set of mounting through holes and are arranged facing each other on the front and rear sides of the mounting through holes.

[0010] Further description of the present invention: A first clearance groove is provided at the connection between the lower end face of the first floating part and the mounting part, and a second clearance groove is provided at the connection between the lower end face of the first floating part and the second floating part.

[0011] Further description of the present invention: The second floating part includes an upper connecting part, a lower connecting part and an arc-shaped connecting part. The left end of the upper connecting part is connected to the lower end of the first floating part, the left end of the lower connecting part is connected to the upper end of the cleaning part, and the upper and lower ends of the arc-shaped connecting part are respectively connected to the right end of the upper connecting part and the right end of the lower connecting part. A limiting groove is vertically provided on the arc-shaped connecting part.

[0012] Further description of this utility model: The lower connecting part is provided with a dust collection hole that communicates with the limiting groove.

[0013] Further description of the present invention: The second floating part also includes a floating limiting protrusion. The lower end of the floating limiting protrusion is connected to the upper end face of the lower connecting part and corresponds to the left side of the dust collection hole. A dust guiding slope is provided on the left side of the floating limiting protrusion, and the dust guiding slope is inclined to the upper right.

[0014] The beneficial effects of this utility model are as follows: The mounting part is used to fix the robot vacuum cleaner to its shell. The bottom contact strip of the cleaning part scrapes the dust on the ground. The bottom contact strip is vertically set, which can reduce the contact area with the ground, thereby reducing friction and noise. When the cleaning part scrapes the ground with high friction or uneven ground, the opening of the second floating part is retracted, which allows the cleaning part to swing within a certain range. The second floating part also drives the left end of the first floating part upward. When the lower end of the opening of the second floating part moves upward, it is equivalent to the cleaning part swinging clockwise. When the upper end of the opening of the second floating part drives the first floating part to rise, it is equivalent to the cleaning part swinging counterclockwise. Therefore, under the combined action of the first floating part and the second floating part, the cleaning part can rise and maintain a similar tilt angle to the original, so that the bottom contact strip can effectively scrape the ground. By using one-piece molding technology, the mounting part, the first floating part, the second floating part and the cleaning part are simultaneously injection molded, which can eliminate the assembly process between the floating structure and the mounting part, improve the assembly efficiency and reduce the manufacturing cost. Attached Figure Description

[0015] Figure 1 This is a top view of the overall structure of this utility model;

[0016] Figure 2 This is an overall structural diagram of the present invention (view from below);

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Mounting section; 11. Mounting strip; 111. Mounting through hole; 112. Assembly boss; 12. Insertion strip; 2. First floating section; 21. First clearance groove; 22. Second clearance groove; 3. Second floating section; 31. Upper connecting section; 32. Lower connecting section; 33. Arc-shaped connecting section; 331. Limiting groove; 332. Dust collection hole; 34. Floating limiting protrusion; 341. Dust guiding slope; 4. Cleaning section; 41. Ground contact protrusion. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] like Figures 1 to 3 As shown, a robotic vacuum cleaner with an integrated scraper includes an integrally formed mounting part 1, a first floating part 2, a second floating part 3, and a cleaning part 4. The upper end of the first floating part 2 is connected to the left side of the mounting part 1, and the lower end of the first floating part 2 is inclined to the left. The second floating part 3 is U-shaped with an opening to the left. The upper end of the opening of the second floating part 3 is connected to the lower end of the first floating part 2. The upper end of the cleaning part 4 is connected to the lower end of the opening of the second floating part 3, and the lower end of the cleaning part 4 is inclined to the left. The bottom of the cleaning part 4 is provided with a downwardly protruding ground contact strip 41.

[0022] Mounting part 1 is used to fix it to the shell of the sweeping robot. The bottom contact protrusion 41 of the sweeping part 4 scrapes the dust on the ground. The bottom contact protrusion is set vertically, which can reduce the contact area with the ground, thereby reducing friction and noise. When the sweeping part 4 scrapes the ground with greater friction or uneven ground, the sweeping part 4 drives the opening of the second floating part 3 to retract, thereby allowing the sweeping part 4 to swing within a certain range. The second floating part 3 also drives the left end of the first floating part 2 to move upward. When the lower end of the opening of the second floating part 3 moves upward, it is equivalent to the sweeping part 4 swinging clockwise. When the upper end of the opening of the second floating part 3 drives the first floating part 2 to rise, it is equivalent to the sweeping part 4 swinging counterclockwise. Therefore, under the combined action of the first floating part 2 and the second floating part 3, the sweeping part 4 can rise and maintain a similar tilt angle to the original, so that the bottom contact protrusion can effectively scrape the ground. By using one-piece molding technology, the mounting part 1, the first floating part 2, the second floating part 3 and the cleaning part 4 are simultaneously injection molded, which eliminates the need for assembly between the floating structure and the mounting part 1, improves assembly efficiency and reduces manufacturing costs.

[0023] The first floating part 2 is made of TPV material, while the mounting part 1, the second floating part 3, and the cleaning part 4 are all made of rigid TPU material. TPV material has good elasticity and can deform within a large range, which helps to enhance the floating range of the cleaning part 4.

[0024] The mounting part 1 includes a mounting strip 11 and a connector strip 12. The upper end of the first floating part 2 is connected to the left side of the mounting strip 11. The mounting strip 11 has multiple sets of mounting through holes 111 evenly arranged along its length. The connector strip 12 is connected to the lower end of the mounting strip 11 and corresponds to one side of the mounting through holes 111. The connector strip 12 cooperates with the positioning groove on the housing to position the mounting strip 11. A cover plate is provided on the mounting part 1. The connecting post on the cover plate passes downward through the mounting through holes 111 and connects to the housing, thereby fixing the mounting part 1 to the housing.

[0025] The mounting part 1 is provided with mounting bosses 112. Two sets of mounting bosses 112 are provided in each set of mounting through holes 111 and are arranged facing each other on the front and rear sides of the mounting through holes 111. There is a gap between the connecting post on the cover plate and the mounting through hole 111, and the mounting bosses 112 can abut against the connecting post, thereby preventing the mounting strip 11 from shifting.

[0026] A first clearance groove 21 is provided at the connection between the lower end face of the first floating part 2 and the mounting part 1, and a second clearance groove 22 is provided at the connection between the lower end face of the first floating part 2 and the second floating part 3. The provision of the first clearance groove 21 and the second clearance groove 22 facilitates the swinging of the first floating part 2 relative to the mounting part 1 and the second floating part 3.

[0027] The second floating part 3 includes an upper connecting part 31, a lower connecting part 32, and an arc-shaped connecting part 33. The left end of the upper connecting part 31 is connected to the lower end of the first floating part 2, the left end of the lower connecting part 32 is connected to the upper end of the cleaning part 4, and the upper and lower ends of the arc-shaped connecting part 33 are respectively connected to the right ends of the upper connecting part 31 and the right ends of the lower connecting part 32. A limiting groove 331 is vertically provided on the arc-shaped connecting part 33. A limiting block on the housing passes through the limiting groove 331, which can prevent the second floating part 3 from shifting in the forward and backward direction when the robot vacuum is in use.

[0028] The lower connecting part 32 is provided with a dust collection hole 332 that communicates with the limiting groove 331. Under the airflow of the vacuuming robot's suction device, the dust scraped by the cleaning part 4 enters the lower connecting part 32 through its left end face and falls into the collection cavity through the dust collection hole 332.

[0029] The second floating part 3 also includes a floating limiting protrusion 34. The lower end of the floating limiting protrusion 34 is connected to the upper end face of the lower connecting part 32 and corresponds to the left side of the dust collection hole 332. A dust guiding slope 341 is provided on the left side of the floating limiting protrusion 34, and the dust guiding slope 341 is inclined to the upper right.

[0030] The limiting protrusion is used to limit the retraction distance of the opening of the second floating part 3. The floating limiting protrusion 34 has a dust guiding slope 341 on the left side, so that dust can fall along the dust guiding slope 341 onto the lower connecting part 32 on the right side and enter the dust collection hole 332.

[0031] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A robotic vacuum cleaner with an integrated scraper blade, characterized in that: It includes an integrally formed mounting part, a first floating part, a second floating part, and a cleaning part. The upper end of the first floating part is connected to the left side of the mounting part, and the lower end of the first floating part is inclined to the left. The second floating part is a U-shaped part that opens to the left. The upper end of the opening of the second floating part is connected to the lower end of the first floating part. The upper end of the cleaning part is connected to the lower end of the opening of the second floating part, and the lower end of the cleaning part is inclined to the left. The bottom of the cleaning part is provided with a downward protruding ground contact strip.

2. The integrated scraper blade of a sweeping robot according to claim 1, characterized in that: The first floating part is made of TPV material, while the mounting part, the second floating part, and the cleaning part are all made of rigid TPU material.

3. The integrated scraper blade of a sweeping robot according to claim 1, characterized in that: The mounting part includes a mounting strip and a plug strip. The upper end of the first floating part is connected to the left side of the mounting strip. The mounting strip is provided with a plurality of mounting through holes evenly arranged along its length. The plug strip is connected to the lower end of the mounting strip and corresponds to one side of the mounting through holes.

4. The integrated scraper blade of a sweeping robot according to claim 3, characterized in that: The mounting part is provided with mounting bosses, and two sets of mounting bosses are provided in each set of mounting through holes and are arranged facing each other on the front and rear sides of the mounting through holes.

5. The integrated scraper blade of a sweeping robot according to claim 1, characterized in that: A first clearance groove is provided at the connection between the lower end face of the first floating part and the mounting part, and a second clearance groove is provided at the connection between the lower end face of the first floating part and the second floating part.

6. The integrated scraper blade of a sweeping robot according to claim 1, characterized in that: The second floating part includes an upper connecting part, a lower connecting part, and an arc-shaped connecting part. The left end of the upper connecting part is connected to the lower end of the first floating part, the left end of the lower connecting part is connected to the upper end of the cleaning part, and the upper and lower ends of the arc-shaped connecting part are respectively connected to the right end of the upper connecting part and the right end of the lower connecting part. A limiting groove is vertically provided on the arc-shaped connecting part.

7. The integrated scraper blade of a sweeping robot according to claim 6, characterized in that: The lower connecting part is provided with a dust collection hole that communicates with the limiting groove.

8. The integrated scraper blade of a sweeping robot according to claim 7, characterized in that: The second floating part also includes a floating limiting protrusion. The lower end of the floating limiting protrusion is connected to the upper end face of the lower connecting part and corresponds to the left side of the dust collection hole. A dust guiding slope is provided on the left side of the floating limiting protrusion, and the dust guiding slope is inclined to the upper right.