Driver's cab boarding device of automobile crane

Abstract

The invention relates to a driver's cab boarding device of an automobile crane, comprising a staircase assembly arranged at the corresponding side of a carriage, a horizontal walking plate, a driver's cab and a horizontal bracket, the driver's cab and the bracket are respectively arranged at the upper and lower sides of the walking plate, the bracket is extended along the width direction of the walking plate and the inner end of the bracket is fixedly connected with the corresponding side of the carriage, the staircase assembly is arranged at the upper side of the walking plate, the staircase assembly is composed of a supporting frame and a stepping frame articulated with one side of the supporting frame, a sleeve pipe is inserted with the bracket vertically, a rotating shaft is arranged in the sleeve pipe and the upper end of the rotating shaft is provided with a carrying plate contacted with the upper opening end of the sleeve pipe, and the other side of the supporting frame is fixedly connected with the carrying plate and sheathed with the upper part of the sleeve pipe respectively, self-locking mechanisms are respectively arranged between the supporting frame and the sleeve pipe and between the supporting frame and the rotating shaft, a drawing type boarding assembly is arranged at the lower side of the walking plate and below the driver's cab, and a transmission mechanism is respectively connected with the lower end of the rotating shat and the drawing type boarding assembly. By adopting the boarding device, an operational staff can enter in the driver's cab conveniently and safely.

Description

technical field

[0001] The invention relates to a boarding device for a driver's cab of an automobile crane. Background technique

[0002] At present, the corresponding side of the frame of the domestic truck crane has a horizontal walking platform, a driver's cab, and a horizontal bracket. The driver's cab and the bracket are respectively located on the upper and lower sides of the walking platform. The corresponding side of the rack is fastened.

[0003] The driver's cab boarding device commonly used on the crane is a simple ladder structure, which is directly fixed on the lower side of the walking platform, and the specific position is randomly arranged by each crane manufacturer according to the space left by the chassis itself. Due to the limitation of the size of the vehicle frame itself, most of the boarding devices have the following defects: (1) the height of the first step from the ground is relatively high, and it is difficult for short workers to go up the first...

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