2results about How to "No swing" patented technology

The application discloses a traffic cone pretreatment device automatic folding and unfolding system, a folding and unfolding vehicle and a folding and unfolding method. The automatic folding and unfolding system comprises a guide rail base, a guide rail frame, a pretreatment device, an electric push rod I and an electric push rod II. The guide rail base is connected with a vehicle frame and is installed on a sliding rail of the guide rail frame and slides up and down through the electric push rod I. A hinged base II of the guide rail frame is hinged with the pretreatment device, a hinged base I is hinged with the electric push rod II, the other end of the electric push rod II is hinged with the first guide rod end of the pretreatment device, the electric push rod II drives the pretreatment device to swing, the automatic folding and unfolding system of the pretreatment device is installed on the side of the vehicle and is wholly stored under the vehicle frame during driving, so that the system does not exceed the width of the vehicle. The multi-stage rotary support limiting structure can effectively reduce the horizontal folding and unfolding space of the device, realize a large telescopic stroke, ensure the stability of the included angle between the guide rod and the first guide rod and prevent swinging. The electromagnetic lock locking mechanism ensures sufficient ground clearance during driving.

The invention discloses an adjustable gearbox bearing puller which comprises a main rod, a sliding hammer, a pressing sleeve and a claw assembly. One end of the main rod is in threaded connection with the pressing sleeve and the claw assembly in sequence; the sliding weight is arranged on the main rod in a sliding and sleeving mode and detachably connected. The opening and closing of the hook claws are independently adjusted through the independent pressing sleeve, the hook claws do not deviate after being positioned and can be self-locked after being locked, the hook claws do not loosen or pop up in the pulling-out process, safety is remarkably improved, clamping is firm, and safety and reliability are achieved.