Patent ID: 11910743
Assignee: NANJING CHERVON INDUSTRY CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC A | IPC A

Claim 0:
1. A grass trimmer, comprising:
a grass trimming head;
a motor configured to drive the grass trimming head to rotate;
a handle comprising a handle housing for being gripped by a user; and
a connecting pipe connected to the grass trimming head and the handle;
wherein the connecting pipe has a hollow tubular structure, the connecting pipe comprises an inner layer member made of a carbon fiber material and an outer layer member made of a carbon fiber material, and a fiber arrangement direction of the inner layer member is different from a fiber arrangement direction of the outer layer member, and
wherein the inner layer member is rolled from multi-layered fiber material sheets arranged in layers,
wherein the grass trimmer further comprises a motor housing configured to accommodate or mount the motor and a first housing used for connecting a battery pack, the first housing and the motor housing are respectively fixed to two ends of the connecting pipe, the grass trimmer further comprises a guide wire electrically connected to the battery pack and the motor, and the guide wire is located inside the connecting pipe,
wherein the connecting pipe further comprises an embedded member and the inner layer member is sleeved on a circumference of the embedded member, and
wherein the embedded member is made of metal or plastic material.