A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Abstract A labor-saving tent frame includes an upper hub (1), a lower hub (2) and a drawstring structure, wherein the upper hub (1) is articulated with inner ends of a plurality of long ribs (4), the lower hub (2) is articulated with inner ends of a plurality of short ribs (5), and outer ends of the short ribs (5) are articulated with middle portions of the long ribs (4) in one-to-one correspondence; the tent frame further includes a long-short-rib articulated torsion spring (31) provided with a first force arm (99) of the torsion spring and a second force arm (98) of the torsion spring, and the long rib (4) and the short rib (5) are fixed to the first force arm (99) and the second force arm (98) of the torsion spring respectively; the drawstring structure includes a drawstring (3) with which the upper hub (1) and the lower hub (2) may be pulled closer, and two pulling ends of the drawstring (3) hang down below the lower hub (2). With the above-mentioned structure, a force required to push the short rib (5) to rotate may be reduced remarkably, thereby removing a force obstacle; a direction in which a user should apply force is changed to be downward from the lower hub (2), thereby removing a height obstacle.
Abstract A labor-saving tent frame includes an upper hub (1), a lower hub (2) and a drawstring structure, wherein the upper hub (1) is articulated with inner ends of a plurality of long ribs (4), the lower hub (2) is articulated with inner ends of a plurality of short ribs (5), and outer ends of the short ribs (5) are articulated with middle portions of the long ribs (4) in one-to-one correspondence; the tent frame further includes a long-short-rib articulated torsion spring (31) provided with a first force arm (99) of the torsion spring and a second force arm (98) of the torsion spring, and the long rib (4) and the short rib (5) are fixed to the first force arm (99) and the second force arm (98) of the torsion spring respectively; the drawstring structure includes a drawstring (3) with which the upper hub (1) and the lower hub (2) may be pulled closer, and two pulling ends of the drawstring (3) hang down below the lower hub (2). With the above-mentioned structure, a force required to push the short rib (5) to rotate may be reduced remarkably, thereby removing a force obstacle; a direction in which a user should apply force is changed to be downward from the lower hub (2), thereby removing a height obstacle.
Labor-Saving Tent Support
JIN ZUOXIAN (author)
2020-05-14
Patent
Electronic Resource
English
IPC:
E04H
Gebäude oder ähnliche Bauwerke für besondere Zwecke
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BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES