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A platform for research: civil engineering, architecture and urbanism
Adjustable upturning labor-saving mechanism of upturning device
The invention provides an adjustable upturning labor-saving mechanism of an upturning device, which comprises a fixed element, a connecting arm component and a fixed seat, wherein the fixed element is provided with a first spring and a second spring; the connecting arm component at least comprises a first connecting arm, a second connecting arm and a third connecting arm; the second connecting arm is articulated with the third connecting arm, 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 articulated part of the first connecting arm and the second connecting arm, and the other end of the first spring acts on the fixed element; the fixed seat can be overturned and opened relative to the fixed element and generates opening action force through the first spring at least when the included angle A is an inferior angle so that the fixed seat is automatically opened on the fixed element; the fixed seat can be overturned and closed relative to the fixed element and generates closing action force through the first spring at least when the included angle A is a reflex angle so that the fixed seat is automatically closed on the fixed element; the second spring is at least overturned and moved, relative to the fixed element, on the fixed seat and generates opposite action force to the first spring when the included angle A is a reflex angle; and the fixed element is provided with an adjusting element for adjusting the magnitude of the action force of the second spring, so that the practicability is strong.
Adjustable upturning labor-saving mechanism of upturning device
The invention provides an adjustable upturning labor-saving mechanism of an upturning device, which comprises a fixed element, a connecting arm component and a fixed seat, wherein the fixed element is provided with a first spring and a second spring; the connecting arm component at least comprises a first connecting arm, a second connecting arm and a third connecting arm; the second connecting arm is articulated with the third connecting arm, 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 articulated part of the first connecting arm and the second connecting arm, and the other end of the first spring acts on the fixed element; the fixed seat can be overturned and opened relative to the fixed element and generates opening action force through the first spring at least when the included angle A is an inferior angle so that the fixed seat is automatically opened on the fixed element; the fixed seat can be overturned and closed relative to the fixed element and generates closing action force through the first spring at least when the included angle A is a reflex angle so that the fixed seat is automatically closed on the fixed element; the second spring is at least overturned and moved, relative to the fixed element, on the fixed seat and generates opposite action force to the first spring when the included angle A is a reflex angle; and the fixed element is provided with an adjusting element for adjusting the magnitude of the action force of the second spring, so that the practicability is strong.
Adjustable upturning labor-saving mechanism of upturning device
WU ZHIYONG (author)
2015-12-30
Patent
Electronic Resource
English
IPC:
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
,
Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung
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