Winding structure of unwinding box of grass mower

Abstract

The invention discloses a winding structure of an unwinding box of a grass mower. The structure comprises the unwinding box and a wire coil arranged in the unwinding box; a supporting part for rotating and supporting is arranged in the unwinding box, the wire coil is matched with the supporting part through a shaft hole of the wire coil, and a ratchet assembly is arranged between the wire coil and the unwinding box and comprises an automatic unwinding assembly and a manual unwinding assembly; an inner gear ring and an outer gear ring are coaxially arranged on the wire coil. The automatic unwinding assembly includes a first spring pressing a first pawl towards the outer gear ring; the manual unwinding assembly includes a second spring pressing a second pawl towards the inner gear ring. The structure is reasonable in arrangement, and the axial relative rotation is based on a damping force, so that reduction of friction is facilitated, the unwinding moment is shortened, and the service life of an automatic unwinding device is prolonged. Meanwhile, due to the arrangement of two unwinding structures, more unwinding modes can be provided, the problem of improper matching caused by automatic unwinding is avoided, and the practicability and working stability of the winding structure are improved.

Description

technical field [0001] The invention relates to the field of lawnmower structures, in particular to a wire take-up structure of a lawnmower pay-off box. Background technique [0002] Lawn mowers, also known as weeders, lawnmowers, lawn trimmers, etc., are mainly used for repairing lawns and other operations. The working head of the lawn mower mainly includes two parts: the motor and the mowing device. The mowing device is divided into two types: the rigid cutter head and the flexible cutting line. Use the cutting force generated by the secant when it rotates at high speed to mow the grass. The blade and the secant will be worn after a period of use. The blade can be replaced after it is worn, and the secant will be shortened after it is worn. It is necessary to remove the secant from the pay-off reel It can only be used effectively when it is pulled out to a suitable working length, and the cutting line may wear faster than the blade, so when using a flexible cutting line w...

AI Technical Summary

Problems solved by technology

However, in actual use, the degree of wear of the secant line is different. Therefore, the automatic unwinding can only be implemented smoothly under relatively ideal wear conditions.

Moreover, the durability of the structure has a greater impact on the automatic pay-off, so the simple automatic pay-off structure cannot ensure the normal pay-off of the lawn mower.

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