Variable-amplitude four-bar device for motor vehicle

Abstract

The invention relates to a variable-amplitude four-bar device for a motor vehicle, which comprises an upper swing frame (1), a front swing device, a lower swing frame (5), a rear swing arm (6) and a lifting oil cylinder (7), wherein the front swing device is a telescopic or folding type, the upper swing frame (1) is articulated with the top end of the front swing device and the top end of the rearswing arm (6), the bottom end of the front swing device is articulated with the lower swing frame (5), the lower swing frame (5) is articulated with the bottom end of the rear swing arm (6) and alsoarticulated with one end of the lifting oil cylinder (7), and the other end of the lifting oil cylinder (7) is articulated with the rear swing arm (6) in the middle part; and the state of high in thefront part and low in the rear part is realized when the variable-amplitude four-bar device is amplified, and the parallel horizontal state is realized when the variable-amplitude four-bar device is contracted.

Description

1. Technical field [0001] The invention belongs to the technical field of motor vehicle spare parts, and relates to a motor vehicle luffing four-bar linkage device, in particular to a motor vehicle luffing four-bar linkage device with a telescopic or folding front swing device. 2. Background technology [0002] As the exclusive part of the motor vehicle, the upper part of the motor vehicle can meet the different functional requirements of the motor vehicle. The upper part of the motor vehicle is an indispensable device as the whole vehicle. At the same time, the height of the center of mass should be as low as possible to meet the requirements of stability and the requirement that the driver's field of vision should not be affected when driving. In special cases, it is required that the motor vehicle During driving conditions, the top is in a state of high front and low rear, which does not affect the driver's field of vision, and is in a horizontal state during working cond...

AI Technical Summary

Problems solved by technology

[0002] As the exclusive part of the motor vehicle, the upper part of the motor vehicle can meet the different functional requirements of the motor vehicle. The upper part of the motor vehicle is an indispensable device as the whole vehicle. At the same time, the height of the center of mass should be as low as possible to meet the requirements of stability and the requirement that the driver's field of vision should not be affected when driving. In special cases, it is required that the motor vehicle When driving, the top is in a state of high front and low rear, which does not affect the driver's field of vision, and is in a horizontal state during working conditions. There is no such device yet

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