Upturning effort-saving mechanism for upturning device

Abstract

An upturning effort-saving mechanism for an upturning device comprises a fixed element, a connecting arm component and a fixed base, wherein a first spring and a second spring are arranged on the fixed element, the connecting arm component at least comprises a first connecting arm, a second connecting arm and a third connecting arm, the second connecting arm and the third connecting arm are hinged together, and an included angle A is formed between the second connecting arm and the third connecting arm; one end of the first spring acts on the position where the first connecting arm and the second connecting arm are hinged together, and the other end of the first spring acts on the fixed element; the fixed base can be overturned to be opened relative to the fixed element, and an opening acting force is generated through the first spring at least when the included angle A is an inferior angle to enable the fixed base to be opened automatically on the fixed element; the fixed base can be overturned to be closed relative to the fixed element, and a closing acting force is generated through the first spring at least when the included angle A is a superior angle to enable the fixed base to be closed automatically on the fixed element; the second spring generates an acting force opposite to that of the first spring at least when the fixed base is overturned relative to the fixed element and the included angle A is a superior angle so as to partially counteract the closing acting force generated by the first spring; practicality is high.

Description

technical field [0001] The invention relates to an upturning device, in particular to an upturning labor-saving mechanism for a furniture upturning device. Background technique [0002] The Chinese patent document number is CN202039710U, which discloses a hinge on November 16, 2011. The curved end of the first rotating arm of this structure is rotatably connected to the base plate, and the curved end of the second rotating arm is rotatably connected to the base plate. The two ends of the above-mentioned connecting arms that can overlap with the respective straight ends of the first rotating arm and the second rotating arm at the same time are rotatably connected with the respective straight ends of the first rotating arm and the second rotating arm respectively, and the connecting arms are located at the first Between the rotating arm and the second rotating arm, the bent end of the first rotating arm is hinged with the free end of the movable rod of the gas rod, and the fix...

AI Technical Summary

Problems solved by technology

It is said that this structure can reduce noise, and the closing or opening movement of the cabinet door is more flexible. During the movement of the cabinet door, the overall translational movement can avoid the situation that ordinary cabinet doors may hit the head; however, the upper The hinge of the flap door only realizes buffering and damping through the elastic device, and the force during the closing movement or opening movement cannot achieve a uniform effect, and the elastic device has a large friction force and high noise when the upper flap door is hinged to open and close, and the upper flap door opens at a certain angle Then it will automatically close due to its own weight, which cannot meet the needs of users

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