Patent ID: 9326490
Filing Date: 2016-05-03
CPC Classification: A01K,B65H

Claim Text:
1. A traction switching device, comprising a manual button ( 2 ), an upper casing ( 3 ), a pulley ( 5 ), a lower casing ( 6 ), a reset spring ( 8 ), wherein the manual button ( 2 ) is installed at the position corresponding to the lower casing ( 6 ) and the upper casing ( 3 ); the pulley ( 5 ) is installed at the central axis of the lower casing ( 6 ); the reset spring ( 8 ) is installed in the manual button ( 2 ); further comprising a push-pull button ( 1 ), wherein the manual button ( 2 ) is sleeved on a hole corresponding to the push-pull button ( 1 ); the lower casing ( 6 ) is provided with a first slot ( 9 ); the push-pull button ( 1 ) is imbedded in the first slot ( 9 ); wherein the manual button ( 2 ) is provided with a second slot ( 13 ); the push-pull button ( 1 ) is provided with a hook ( 12 ); the hook ( 12 ) of the push-pull button ( 1 ) is stuck in the second slot ( 13 ) of the manual button ( 2 ) when pressing the manual button ( 2 ) to lock the pulley ( 5 ) and simultaneously pull the push-pull button ( 1 ) backward; the hook ( 12 ) of the push-pull button ( 1 ) is released from the second slot ( 13 ) of the manual button ( 2 ) when sliding forward the push-pull button ( 1 ).