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A platform for research: civil engineering, architecture and urbanism
Floor spring with door opening and closing strength adjusting and multi-point positioning functions
The invention relates to a floor spring with door opening and closing strength adjusting and multi-point positioning functions. The floor spring comprises a valve body and a center shaft. Two ends of a valve chamber are provided with a piston, a rear cover and a spring. An upper pulling piece, a main cam, an auxiliary cam, a lower pulling piece, a large roller shaft and a small roller shaft are arranged in a moving chamber. The large roller shaft is connected with a drive roller. The small roller shaft is connected with a buffer roller. The main cam is provided with a continuous outer contour in the arc surface. A notch is formed in the main cam. The auxiliary cam is provided with an arc outer contour. An oil leak is formed in the head of the piston ad internally provided with a one-way valve. An upper cover is arranged on the upper portion of the moving chamber. The floor spring has the advantages that a double-cam structure is adopted to achieve 90-degree positioning and 90- to 180-degree optional positioning; connections such as a pulling rod of the traditional floor spring are omitted, and the spring at the tail is employed to adjust strength, thus the door opening and closing strength is adjusted.
Floor spring with door opening and closing strength adjusting and multi-point positioning functions
The invention relates to a floor spring with door opening and closing strength adjusting and multi-point positioning functions. The floor spring comprises a valve body and a center shaft. Two ends of a valve chamber are provided with a piston, a rear cover and a spring. An upper pulling piece, a main cam, an auxiliary cam, a lower pulling piece, a large roller shaft and a small roller shaft are arranged in a moving chamber. The large roller shaft is connected with a drive roller. The small roller shaft is connected with a buffer roller. The main cam is provided with a continuous outer contour in the arc surface. A notch is formed in the main cam. The auxiliary cam is provided with an arc outer contour. An oil leak is formed in the head of the piston ad internally provided with a one-way valve. An upper cover is arranged on the upper portion of the moving chamber. The floor spring has the advantages that a double-cam structure is adopted to achieve 90-degree positioning and 90- to 180-degree optional positioning; connections such as a pulling rod of the traditional floor spring are omitted, and the spring at the tail is employed to adjust strength, thus the door opening and closing strength is adjusted.
Floor spring with door opening and closing strength adjusting and multi-point positioning functions
YANG GUOYUAN (author) / HUANG KAIHUA (author)
2015-04-08
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
Internet-of-Things floor spring capable of automatically controlling opening and closing of door
| European Patent Office | 2020