Blind-mating double-flange-surface outer plug wire grass trimming head

Abstract

The invention discloses a blind-mating double-flange-surface outer plug wire grass trimming head which comprises a fastening cover and a base assembly which are connected with each other, a wire outlet block is arranged on the base assembly, the grass trimming head further comprises a knocking winding assembly arranged in the fastening cover and the base assembly, and the knocking winding assemblyis formed by integrally combining the fastening cover and the base assembly; wherein the base assembly is provided with a fixed mounting part matched with an output shaft of a motor, the knocking winding assembly is arranged on the inner side of the fixed mounting part in a sleeving manner, and a spring is arranged between the fixed mounting part and the knocking winding assembly, so that the knocking winding assembly can move on the base assembly; the knocking winding assembly comprises a knocking head, a winding starting cover, a channel middle partition plate and a channel lower partitionplate, the channel middle partition plate is arranged between the winding starting cover and the channel lower partition plate, and a wire channel is formed after the winding starting cover and the channel middle partition plate are combined. A wire containing cavity communicated with the wire channel is formed between the channel lower partition plate and the channel middle partition plate.

Description

technical field [0001] The invention relates to the technical field of garden machinery, in particular to a blind-inserted double-flange outer-insertion grass-cutting head. Background technique [0002] The mowing machine is a common garden tool, and its main principle is to use a motor or an engine to drive its mowing head to rotate at a high speed. The flexible cutting wire is wound on the spool, and the spool is accommodated in the trimming head, and the end of the flexible cutting wire protrudes through the hole on the trimming head housing. When the trimming head rotates at a high speed, the flexible cutting wire also follows High-speed rotation, so as to achieve the role of cutting. [0003] At present, the trimmers on the market are generally composed of a winding wheel assembly, a trimmer fastening cover, a trimmer movable seat, an outlet block, and a sliding cover, which often have the following defects: [0004] 1. The reel assembly is fixedly connected to the ou...

AI Technical Summary

Problems solved by technology

[0004] 1. The reel assembly is fixedly connected to the output shaft of the motor, but the fastening cover of the mowing head and the movable seat of the mowing head are not fixed. Due to the large volume of the fastening cap of the mowing head and the movable seat of the mowing head, In the case of high-speed rotation, the natural inertia is large, resulting in large vibration and noise;

[0005] 2. The winding wheel assembly is a combination of two parts, and one of the parts has an insert, which makes it difficult to ensure that the center of the insert and the winding wheel are concentric during the production injection molding process; and this kind of winding As a fixed mowing head, the wire wheel has a complex internal structure design, small wire capacity, and unreasonable guiding design of the internal passage, which makes it impossible to install the mowing rope with a small diameter;

[0006] 3. The reel assembly and the beating head assembly are independent components with complex structures, insufficient connections and high production costs;

[0007] 4. The outlet hole on the outlet block is generally a rectangular hole or a round hole. Because the center of the mowing rope needs to deviate from the center of the outlet hole when the grass head is knocked, when moving up and down, the outlet block of this structure will cause It is easy to get stuck, unable to go out normally, affecting the use

[0008] 5. There is no positioning between the sliding cover and the gasket, and it is difficult for the gasket to be concentric with the sliding cover, resulting in a large moment of inertia and large vibration and noise

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