Brake structure for a turntable in-line insertion type airline dining car

Abstract

The invention discloses a brake structure for a turntable in-line insertion type airline dining car, includes symmetrically arranged roller assemblies, each set of the roller assemblies includes two pairs of symmetrically disposed rollers, An upper part of that roll assembly is provided with a brake assembly, A link assembly is arrange between that two brake assemblies, the brake assembly transmits power through the connecting rod assembly, so that one side of the brake assembly acts to brake or release all the rollers at the same time, A lev horizontal movement is converted into a lev horizontal movement, and that lever horizontal movement is inserted into a gap between a cylinder of a caster wheel and a mounting surface, the structure form is more stable and efficient, the force requirefor the movement of the mechanism is smaller, the brake and the loose state are more stable, a secondary releasing mechanism is installed, and the brake can be released through the secondary releasingmechanism when the main releasing mechanism is faulty; At that same time, the current engagement state of the structure can be clearly display, and the base and the pedal are provided with plastic material, and the connecting rod is provided with aluminum alloy profiles, thereby reducing the overall weight.

Description

technical field [0001] The invention relates to the field of aviation technology, in particular to a brake structure for a turntable in-line aviation dining car. Background technique [0002] In the prior art, the braking scheme of the dining car adopts sheet metal parts (to realize the linkage of the brakes at both ends of the trolley) and a rotating mechanism (to convert the up and down motion of the foot pedal system into the front and rear motion of the sheet metal parts), and the cylinder on the wheel Jack up to realize braking. Alternatively, a special-shaped steel round bar is jacked up by sheet metal parts, thereby jacking up the cylinder on the wheel to achieve braking. The mechanism reversely rotates to realize loosening. [0003] In this type of solution, sheet metal parts, round bars, etc. are made of steel and are thicker and heavier. [0004] The protrusions of the cylinder on the same side of the wheel are on both sides of the wheel, so that the secondary r...

AI Technical Summary

Problems solved by technology

[0006] In this type of solution, there are many meshing parts of plastic parts, the manufacturing process is more complicated, the assembly and debugging are difficult, and mechanism failures such as sticking are more likely to occur.

[0007] The protrusions of the cylinder on the same side of the wheel are on both sides of the wheel, and the secondary release mechanism cannot be installed, and the current engagement state of the brake cannot be clearly displayed, so it cannot be clearly displayed whether it is in the braking state or the loose state

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