Anti-winding grass trimmer

By adopting baffle and limit block structures in the grass-beating assembly of the lawn mower, limiting the weed wrapping motor shafts, the increase in motor load and deceleration caused by weed wrapping in existing lawn mowers is solved, and more efficient mowing and longer equipment service life is achieved.

CN222655779UActive Publication Date: 2025-03-25ZHEJIANG JUNBO INTELLIGENT MFG CO LTD
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Patent Information

Application Number
CN202421435947.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-22
Publication Date
2025-03-25
Estimated Expiration
2034-06-22

AI Technical Summary

Technical Problem

During the working process of existing lawn mowers, due to the gap between the gear transmission box and the blade, weeds are easily wrapped around the motor shaft, increasing the motor load, reducing the rotation speed, and even causing the motor shaft to stop rotating.

Method used

An anti-winding mower is designed, adopting a baffle and a limit block structure, with a limit block on the baffle. There is a gap between the limit block above the blade and the blade. The gap distance is 1-7mm, usually 3mm, to limit the weeds to wrap around the motor shaft.

Benefits of technology

It effectively avoids weeds wrapping around the motor shaft, prevents the load of the grass-piping component from increasing, the speed drops, and the motor shaft stops rotating, and improves the mowing efficiency and the service life of the equipment.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model belongs to the technical field of mowers, and particularly relates to an anti-winding grass trimmer which comprises a driving handle and a grass trimming assembly, the grass trimming assembly comprises a shell and a blade arranged below the shell, and a driving motor and a motor shaft arranged on the driving motor are arranged in the shell. One end of a motor shaft is located below the shell, connected with the blade and drives the blade to rotate, a baffle is arranged on the shell and located above the blade, the baffle extends downwards to form a limiting block, the limiting block is directly arranged on the baffle and can be stably arranged, the limiting block is located above the blade, and a gap exists between the limiting block and the upper surface of the blade. The limiting block limits weeds from winding the motor shaft above the blade, the limiting block is arranged at the upper end of the blade, although a gap exists between the limiting block and the blade, the gap is small, the weeds cannot pass through the gap easily, the situation that the motor shaft is stuck and stops rotating is prevented, the gap distance between the limiting block and the blade is generally 1-7 mm, and the gap distance is 3 mm most appropriately.
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