Hovering protective cover for a waste bin

By designing a hovering protective cover and adopting a limit spring and a four-bar linkage structure, the problems of difficult and unstable disassembly and assembly of the tailgate protective cover have been solved, realizing convenient and stable operation of the tailgate protective cover and simplifying the maintenance process of the cleaning robot.

CN224330898UActive Publication Date: 2026-06-09HEFEI HAGONG AOTING INTELLIGENT TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI HAGONG AOTING INTELLIGENT TECH CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The tailgate protective cover of existing commercial service cleaning robots is laborious and inconvenient to install and remove, and cannot be fixed after opening, affecting maintenance operations.

Method used

A hovering protective cover for a trash can was designed, employing a limiting spring and a four-bar linkage structure. It is fixed to the robot housing with bolts. After opening, the tailgate protective cover can hover above the tailgate and is fixed to the tailgate side plate by a reinforcing magnetic strip, ensuring stability and convenient operation.

Benefits of technology

It enables convenient opening and closing of the tailgate protective cover and stable hovering, simplifies inspection and maintenance operations, and ensures that the protective cover is secure after closing and does not affect the robot's daily operation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224330898U_ABST
    Figure CN224330898U_ABST
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Abstract

This utility model relates to the field of cleaning equipment technology, specifically to a hovering protective cover for a trash can, including a robot shell, a tailgate protective cover, and a trash can body. The tailgate protective cover is provided on the robot shell outside the trash can body. A protective cover connecting plate is fixed to the tailgate protective cover near the robot shell by bolts. Both sides of the protective cover connecting plate are rotatably connected to inner connecting rods by pins. The other ends of the two inner connecting rods are rotatably connected to a fixed bracket by pins. This utility model provides a tailgate protective cover that can be stably hovered above the tailgate after opening. The limiting spring, together with the four-bar linkage, is tightened and fixed by the limiting spring during opening and closing, thereby effectively avoiding interference with the operator's inspection and maintenance operations inside the robot through the tailgate. Moreover, the opening and closing operation of the tailgate protective cover is simple and convenient, simplifying the preparation work for the operator when inspecting and maintaining the cleaning robot.
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Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, specifically to a suspended protective cover for a trash can. Background Technology

[0002] To facilitate the inspection and maintenance of internal components, existing commercial service cleaning robots are equipped with a tail door, and the outer shell is usually fitted with a tail door protective cover to protect the internal components of the commercial service cleaning robot, such as the battery compartment, dustbin, main brush, and main control electronic unit. In commercial application scenarios, cleaning robots need to frequently replace dustbins, main brushes, batteries, and various electronic modules, so the tail door protective cover needs to be opened frequently to complete daily maintenance operations.

[0003] Existing tailgate protective covers are usually assembled onto the robot shell as a separate structure using traditional bolts or rotating clips. In actual operation, bolted tailgate protective covers require repeated tightening of bolts for disassembly and fixation, which is laborious and time-consuming. While the assembly method of rotating opening and closing combined with clip fixation is convenient to open, the tailgate protective cover cannot be fixed after opening, which can easily affect subsequent maintenance operations inside the robot. Therefore, a hovering protective cover for the waste box is proposed. Utility Model Content

[0004] In order to solve the technical problems existing in the prior art, the present invention provides a suspended protective cover for a trash can.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a suspended protective cover for a garbage bin, comprising a robot shell, a tailgate protective cover, and a garbage bin body. The tailgate protective cover is provided on the robot shell outside the garbage bin body. A protective cover connecting plate is fixed to the tailgate protective cover near the robot shell by bolts. Both sides of the protective cover connecting plate are rotatably connected to inner connecting rods by pins. The other ends of the two inner connecting rods are rotatably connected to a fixed bracket by pins. The fixed bracket is fixed inside the robot shell by bolts. Connecting rod pads are fixed to the outer ends of the protective cover connecting plate below the inner connecting rods by bolts. Outer connecting rods are rotatably connected to the two connecting rod pads by pins. The other ends of the outer connecting rods are rotatably connected to the outside of the fixed bracket by pins. Limiting springs are hung between both ends of the fixed bracket and the outside of the outer connecting rods.

[0006] Preferably, the tailgate protective cover has fixing pads on both sides, and each fixing pad has a reinforcing magnetic strip fixed to the side of the robot housing by bolts, and each reinforcing magnetic strip has an embedded bolt groove inside.

[0007] Preferably, an iron tailgate side plate is fixed to the edge of the tailgate of the robot housing, a protective cover handle is embedded in the middle of the tailgate protective cover, and a side plate that fits against the tailgate side plate is fixed to the side edge of the tailgate protective cover near the robot housing.

[0008] Preferably, each of the outer connecting rods is fixed with a spring connecting pin in the middle, and spring hanging grooves are provided at both ends of the fixed bracket and at the outer ends of the two spring connecting pins. Hooks are provided at both ends of the limiting spring, and the hooks are engaged inside the spring hanging grooves.

[0009] Preferably, the fixing bracket is fixed inside the robot housing at the top of the tailgate, and the protective cover connecting plate is fixed to the lower part of the tailgate protective cover.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model is equipped with a tailgate protective cover that can be stably suspended above the tailgate after opening. The limit spring and the four-bar linkage are tightened and fixed by the limit spring when opening and closing, which can effectively avoid affecting the operator's inspection and maintenance operations inside the robot through the tailgate. Moreover, the opening and closing operation of the tailgate protective cover is simple and convenient, which simplifies the preparation work for the operator when inspecting and maintaining the cleaning robot.

[0012] 2. In this utility model, the reinforcing magnetic strips on both sides of the tailgate protective cover are attracted and fixed to the tailgate side plate. When the tailgate protective cover is pulled down to close the tailgate, the tailgate protective cover and the robot shell are reinforced. With the tension of the limit spring, the tailgate protective cover is firmly fixed after closing, and the loose tailgate protective cover is prevented from affecting the daily operation of the cleaning robot. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the suspended protective cover of this utility model when it is closed;

[0014] Figure 2 This is a schematic diagram of the structure of the suspended protective cover of this utility model when it is opened;

[0015] Figure 3 This is a partial structural connection diagram of the suspended protective cover of this utility model when it is closed;

[0016] Figure 4 This is a partial structural connection diagram of the suspended protective cover of this utility model when it is opened.

[0017] The numbers in the image represent:

[0018] 1. Robot shell; 2. Tailgate protective cover; 3. Trash container body; 4. Protective cover handle; 5. Tailgate side panel; 6. Protective cover connecting plate; 7. Fixing bracket; 8. Inner connecting rod; 9. Outer connecting rod; 10. Spring connecting pin; 11. Limiting spring; 12. Spring hanging groove; 13. Fixing pad; 14. Reinforcing magnetic strip; 15. Connecting rod pad. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, highlighting the above and other technical features and advantages of the present invention. However, the following embodiments are merely preferred embodiments of the present invention and are not exhaustive.

[0020] Example:

[0021] like Figure 1-4 As shown, this utility model provides a suspended protective cover for a trash can, including a robot housing 1, a tailgate protective cover 2, and a trash can body 3. The tailgate protective cover 2 is installed on the robot housing 1 outside the trash can body 3. A protective cover connecting plate 6 is bolted to the side of the tailgate protective cover 2 near the robot housing 1. Both sides of the protective cover connecting plate 6 are rotatably connected to inner connecting rods 8 via pins. The other ends of the two inner connecting rods 8 are rotatably connected to a fixed bracket 7 via pins. The fixed bracket 7 is bolted inside the robot housing 1 and fixed to the top of the tailgate inside the robot housing 1. The protective cover connecting plate 6 is fixed to the lower part of the tailgate protective cover 2, ensuring the safety of the tailgate protective cover 2. When the tailgate cover is in place, the limiting spring 11 is stretched and tilted downwards. When the tailgate cover 2 moves above the tailgate, the limiting spring 11 is stretched and tilted upwards, so that the limiting spring 11 always has a pulling force toward the robot housing 1, thereby pulling the tailgate cover 2 to fit against the robot housing 1 or the tailgate side plate 5. The outer ends of the protective cover connecting plate 6 below the inner connecting rod 8 are fixed with connecting rod pads 15 by bolts. The two connecting rod pads 15 are rotatably connected to the outer connecting rod 9 by pins. The other end of the outer connecting rod 9 is rotatably connected to the outside of the fixed bracket 7 by pins. Limiting springs 11 are hung between the two ends of the fixed bracket 7 and the outside of the outer connecting rod 9.

[0022] In this embodiment, fixing pads 13 are fixed on both sides of the tailgate protective cover 2. Each fixing pad 13 is fixed with a reinforcing magnetic strip 14 by bolts on the side of the robot housing 1. Each reinforcing magnetic strip 14 has an embedded bolt groove inside to avoid the bolts affecting the attraction and fixation of the reinforcing magnetic strip 14 with the tailgate side plate 5, and at the same time facilitates the disassembly and fixation of the reinforcing magnetic strip 14.

[0023] In this embodiment, an iron tailgate side plate 5 is fixed to the edge of the tailgate of the robot housing 1, so that after the tailgate protective cover 2 is closed, the reinforcing magnetic strip 14 adheres to and is fixed to the tailgate side plate 5, thereby reinforcing the tailgate protective cover 2. A protective cover handle 4 is embedded in the middle of the tailgate protective cover 2, which makes it convenient to pull the tailgate protective cover 2 during operation. A side plate that fits against the tailgate side plate 5 is fixed to the side edge of the tailgate protective cover 2 near the robot housing 1. When the tailgate is closed, the side plate of the tailgate protective cover 2 fits against the tailgate side plate 5 to ensure the sealing of the edge of the tailgate.

[0024] In this embodiment, spring connecting pins 10 are fixed in the middle of the outer connecting rod 9. With the support of the spring connecting pins 10, the limiting springs 11 can be arranged on the outside of the outer connecting rod 9 to avoid affecting the normal movement of the inner connecting rod 8 and the outer connecting rod 9. Spring hanging grooves 12 are opened at both ends of the fixed bracket 7 and the outer ends of the two spring connecting pins 10. Hooks are provided at both ends of the limiting springs 11. The hooks are hooked inside the spring hanging grooves 12. After the elastic restoring force of the limiting springs 11 weakens, the limiting springs 11 can be pulled to remove both ends of the limiting springs 11 from inside the spring hanging grooves 12 and replace the limiting springs 11, thereby ensuring the tension of the limiting springs 11 when the tailgate protective cover 2 is opened and closed.

[0025] Working principle: When the tailgate needs to be opened, hold the protective cover handle 4 and pull the tailgate protective cover 2 through the protective cover handle 4. This causes the tailgate protective cover 2 to rotate upward through the protective cover connecting plate 6, pulling the inner connecting rod 8 and the outer connecting rod 9. This releases the magnetic strip 14 from the tailgate side plate 5. During the upward rotation, the outer connecting rod 9 drives the spring connecting pin 10 to move. During the movement of the spring connecting pin 10, the spring limiting spring 11 is always stretched. When the tailgate protective cover 2 rotates to the side wall of the robot housing 1 above the tailgate, the limiting spring 11 tilts downward from the end of the fixed bracket 7 and moves to the end of the fixed bracket 7. With the end of the tailgate tilted upwards, the limiting spring 11 is always stretched, thus providing a pulling force to the tailgate cover 2 towards the robot housing 1. This causes the tailgate cover 2 to open and adhere tightly to the side wall of the robot housing 1, thereby opening the tailgate. After the maintenance operation inside the robot housing 1 is completed, the tailgate cover 2 is pulled downwards away from the robot housing 1, causing the tailgate cover 2 to rotate and close under the support of the inner connecting rod 8 and the outer connecting rod 9. Under the pull of the limiting spring 11, the tailgate cover 2 closes tightly against the tailgate side plate 5, and the reinforcing magnetic strip 14 is attracted and fixed to the inner wall of the tailgate side plate 5.

[0026] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A hovering protective cover for a trash can, comprising a robot shell (1), a tailgate protective cover (2), and a trash can body (3), characterized in that, A tailgate protective cover (2) is provided on the robot shell (1) outside the garbage box (3). The tailgate protective cover (2) is fixed with a protective cover connecting plate (6) by bolts on the side close to the robot shell (1). Both sides of the protective cover connecting plate (6) are rotatably connected with inner connecting rods (8) by pins. The other ends of the two inner connecting rods (8) are rotatably connected to the fixed bracket (7) by pins. The fixed bracket (7) is fixed inside the robot shell (1) by bolts. The outer ends of the protective cover connecting plate (6) below the inner connecting rods (8) are fixed with connecting rod pads (15) by bolts. The two connecting rod pads (15) are rotatably connected with outer connecting rods (9) by pins. The other end of the outer connecting rods (9) is rotatably connected to the outside of the fixed bracket (7) by pins. Limiting springs (11) are hung between the two ends of the fixed bracket (7) and the outside of the outer connecting rods (9).

2. The suspended protective cover for a trash can as described in claim 1, characterized in that, The tailgate protective cover (2) has fixed pads (13) on both sides. Each fixed pad (13) has a reinforcing magnetic strip (14) fixed to the side of the robot housing (1) by bolts. Each reinforcing magnetic strip (14) has an embedded bolt groove inside.

3. The suspended protective cover for a trash can as described in claim 1, characterized in that, The robot housing (1) has an iron tailgate side plate (5) fixed to the edge of the tailgate. The tailgate protective cover (2) has a protective cover handle (4) embedded in the middle. The tailgate protective cover (2) has a side plate that fits against the tailgate side plate (5) fixed to the side edge of the robot housing (1).

4. The suspended protective cover for a trash can as described in claim 1, characterized in that, The outer connecting rod (9) is fixed with a spring connecting pin (10) in the middle. The fixed bracket (7) and the outer ends of the two spring connecting pins (10) are provided with spring hanging grooves (12). The limiting spring (11) is provided with hooks at both ends, and the hooks are attached to the inside of the spring hanging grooves (12).

5. The suspended protective cover for a trash can as described in claim 1, characterized in that, The fixed bracket (7) is fixed inside the robot housing (1) at the top of the tailgate, and the protective cover connecting plate (6) is fixed to the lower part of the tailgate protective cover (2).