DescriptionĪt present, the lifting gear that springboard is risen or descend mostly adopts following structure, promptly on the abutting end of springboard and bridge plate, fix the shape cuboid casing identical respectively with the springboard cross section, the adjacent surface of two cuboid casings is the inclined-plane, the upper edge of this adjacent surface is hinged, forms up-small and down-big space thereby make between two cuboid casings after hinged.Each is provided with a pair of stripe board accordingly the both sides, adjacent surface lower edge of two cuboid casings, has some pin-and-holes on the stripe board equably, and an end of every pair of stripe board is on the side plate that moving type is installed in the cuboid casing with bearing pin respectively.When adjusting the height of springboard, bearing pin is inserted on a pair of stripe board in the respective through hole, can realize the height location of springboard.Though adopt this lifting gear can realize the lifting of springboard, because this lifting gear rectangular box that to have two one sides be the inclined-plane, not only increased the weight of springboard and bridge plate, also increased manufacturing cost.Because the height of springboard is to realize by latch being inserted in the respective through hole on a pair of stripe board, sets up or remove the time receiving needs and plug and unplug latch by hand again, can increase the personnel's of setting up labour intensity, make operating efficiency not high. The lifting device of the spring board achieves low manufacturing cost and high working efficiency. The outer ends of each pair of screw rods are respectively hinge combined on the corresponding supporting board lower ends and the supporting seats through plug pins. The outer ends of the screw rod, the lower ends of the supporting boards and the supporting seats are all provided with pin holes. A set of expansion rods consisting of a hollow screw rod and a pair of screw rods is respectively arranged between the corresponding supporting seats and the corresponding supporting boards, wherein one end of each pair of screw rods is respectively rotatably inserted into two ends of one hollow screw rod. The lower surface of the spring board contiguous end is correspondingly fixed with supporting seats on two sides. The upper ends of the two supporting boards are respectively fixed on two web boards which are arranged on the contiguous end of the bridge board and the lower ends of the two supporting boards are extended outside the lower surface of the bridge board. The utility model discloses a lifting device of spring board used for connecting the river bank boat and the river bank of a floating bridge, which comprises a bridge board and a spring board, wherein the rear end of the spring board is hinge combined with the upper edge of one end of the bridge board and the lower edge is provided therein with a lifting device which comprises two supporting boards.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |