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PROTECTIVE APPARATUS AND AERIAL WORK DEVICE
A protective apparatus and an aerial work device, the protective apparatus comprising a bracket (1) and a cover (2); the upper side of the cover (2) is hinged to the upper side of the bracket (1); the protective apparatus further comprises a pull-down apparatus (4); the pull-down apparatus (4) comprises a fixed pulley (403), a movable pulley (404), a push rod (407) and a pull rope (401); the fixed pulley (403) is fixedly connected to the cover (2); the movable pulley (404) is located above the fixed pulley (403); the movable pulley (404) is slidingly connected to the cover (2); a fixed end of the pull rope (401) bypasses the movable pulley (404) and is connected to the fixed pulley (403); and an upper end of the push rod (407) is connected to the movable pulley (404). Once the cover (2) is opened from the bracket (1), the push rod (407) and the movable pulley (404) move downward under the action of gravity, so that a handle end (402) of the pull rope (401) hangs down, and it is then convenient for an operator to pull the handle end (402); when the cover (2) needs to be closed, the handle end (402) is pulled downward, and once a lower end of the push rod (407) is in contact with the bracket (1), the movable pulley (404) moves up; and at said time, the handle end (402) of the pull rope (401) is driven to move up to receive and store the pull rope.
PROTECTIVE APPARATUS AND AERIAL WORK DEVICE
A protective apparatus and an aerial work device, the protective apparatus comprising a bracket (1) and a cover (2); the upper side of the cover (2) is hinged to the upper side of the bracket (1); the protective apparatus further comprises a pull-down apparatus (4); the pull-down apparatus (4) comprises a fixed pulley (403), a movable pulley (404), a push rod (407) and a pull rope (401); the fixed pulley (403) is fixedly connected to the cover (2); the movable pulley (404) is located above the fixed pulley (403); the movable pulley (404) is slidingly connected to the cover (2); a fixed end of the pull rope (401) bypasses the movable pulley (404) and is connected to the fixed pulley (403); and an upper end of the push rod (407) is connected to the movable pulley (404). Once the cover (2) is opened from the bracket (1), the push rod (407) and the movable pulley (404) move downward under the action of gravity, so that a handle end (402) of the pull rope (401) hangs down, and it is then convenient for an operator to pull the handle end (402); when the cover (2) needs to be closed, the handle end (402) is pulled downward, and once a lower end of the push rod (407) is in contact with the bracket (1), the movable pulley (404) moves up; and at said time, the handle end (402) of the pull rope (401) is driven to move up to receive and store the pull rope.
PROTECTIVE APPARATUS AND AERIAL WORK DEVICE
SCHUTZVORRICHTUNG UND LUFTARBEITSVORRICHTUNG
DISPOSITIF DE PROTECTION ET DISPOSITIF DE TRAVAIL AÉRIEN
LI XIPING (author) / LIU GUOLIANG (author) / ZHENG JIPING (author)
2024-10-09
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
/
B66F
HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
,
Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last
AERIAL WORK APPARATUS WITH LATERALLY OFFSET WORK PLATFORM
| European Patent Office | 2017