The invention discloses a pulley device, which comprises a support rod, wherein three through holes are formed in the support rod, the first through hole is fixedly connected with two support arms, a slide support arm is glidingly arranged on the second through hole and the third through hole, the two support arms are welded on the first through hole, the end part of each support arm is connected with a pulley, the pulley of the slide support arm and the pulleys of the two support arms are positioned on one circular arc surface, more than two pulley blocks are arranged at the end part of the support rod, and one pulley block can freely rotate around the support rod according to the requirements. The pulley device has the characteristics that the structure is simple, and the convenience in use is realized.
Pulley device
2015-04-29
Patent
Electronic Resource
English
IPC: | B66D Haspeln , CAPSTANS |