Anti-loosening device for pipeline of rotary speed reducer and lorry-mounted crane

The utility model discloses a rotation speed reducer pipeline anti-loosening device and a lorry-mounted crane, and belongs to the technical field of machinery, the rotation speed reducer pipeline anti-loosening device comprises a rotation speed reducer and an anti-loosening device, the rotation speed reducer is composed of a transmission mechanism, a ventilation pipeline, an oil can and a motor, the anti-loosening device is installed on the ventilation pipeline, and the anti-loosening device comprises a fixing part, the limiting part is located at one end of the fixing part and connected with the ventilation pipeline, and the lorry-mounted crane comprises the pipeline anti-loosening device of the rotary speed reducer. The anti-loosening device is simple in structure, practical and reliable, the anti-loosening device is arranged on the ventilation pipeline, the problem that the ventilation pipeline is loosened due to the fact that the ventilation pipeline is not limited in the long-time transportation and oper