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A platform for research: civil engineering, architecture and urbanism
Multifunctional folding ladder
The invention relates to a multifunctional folding ladder which consists of connecting shafts (1), ratchet wheels (2), lock catches (3), springs (4) and connecting rods (5), wherein rotatable joints 5-1 are installed at the top ends of the connecting rods (5); each joint 5-1 is internally provided with positions for placing the ratchet wheel (2) and the lock catch (3); two adjacent connecting rods (5) are connected by virtue of the connecting shaft (1) which is connected with the ratchet wheel (2). The multifunctional folding ladder is characterized in that the lock catch (3) is locked in a slot 2-1 of the ratchet wheel (2) and the spring (4) is installed on the lock catch (3). When the ladder is used, the lock catch (3) is pressed down or released, so that the ratchet wheel (2) is locked or unlocked. When the ladder is not used, all the connecting rods are folded.
Multifunctional folding ladder
The invention relates to a multifunctional folding ladder which consists of connecting shafts (1), ratchet wheels (2), lock catches (3), springs (4) and connecting rods (5), wherein rotatable joints 5-1 are installed at the top ends of the connecting rods (5); each joint 5-1 is internally provided with positions for placing the ratchet wheel (2) and the lock catch (3); two adjacent connecting rods (5) are connected by virtue of the connecting shaft (1) which is connected with the ratchet wheel (2). The multifunctional folding ladder is characterized in that the lock catch (3) is locked in a slot 2-1 of the ratchet wheel (2) and the spring (4) is installed on the lock catch (3). When the ladder is used, the lock catch (3) is pressed down or released, so that the ratchet wheel (2) is locked or unlocked. When the ladder is not used, all the connecting rods are folded.
Multifunctional folding ladder
YANG YUNSHENG (author) / YANG XING (author) / GUO HAO (author) / JIANG WEILIANG (author)
2015-05-13
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern