The invention relates to a screw driving type household elevator. The screw driving type household elevator comprises a hoistway, a lift car, a spiral lifting block, a screw, a motor driving part anda range extending mechanism. The range extending mechanism comprises a force bearing piece, a movable pulley block, a fixed pulley block and a traction piece. The force bearing piece is fixedly connected with the top wall of the hoistway. The motor driving part is used for driving the screw. The screw is arranged right in front of the force bearing piece. The spiral lifting block sleeves the screw, the spiral lifting block moves up and down along the screw, and through threaded holes matched with the screw are formed in the spiral lifting block. The movable pulley block is composed of a plurality of movable pulleys arranged linearly. The movable pulleys are fixed to the spiral lifting block and performs synchronous displacement motion along with the spiral lifting block. The fixed pulley block is arranged under the movable pulley block and is composed of a plurality of fixed pulleys fixed to the force bearing piece. The traction piece is sequentially wound on the fixed pulleys and themovable pulleys, the fixed end of the traction piece is fixed to the force bearing piece, and the traction end of the traction piece drags the lift car to move.
本发明涉及螺杆驱动式家用电梯,包括井道、轿厢、螺旋升降块、螺杆、电机驱动部以及增程机构。增程机构包括有承力件、动滑轮组、定滑轮组以及牵拉件。承力件与井道的顶壁固定连接。电机驱动部用来驱动螺杆。螺杆布置于承力件的正前方。螺旋升降块套设于螺杆上,其沿着螺杆进行上下位移运动,且在其上开设有与螺杆相适配的贯通状螺纹孔。动滑轮组由线性排列的多个动滑轮构成。动滑轮固定于螺旋升降块上,且跟随螺旋升降块进行同步位移运动。定滑轮组布置于动滑轮组的正下方,且其由多个固定于承力件上的定滑轮构成。牵拉件依序缠绕于定滑轮、动滑轮上,且其固定端与承力件相固定,而其牵拉端拖动轿厢进行位移运动。
Screw driving type household elevator
一种螺杆驱动式家用电梯
2020-12-29
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |