The invention relates to the technical field of hoisting equipment, in particular to an outer cover structure of a lever block. The outer cover structure comprises a ratchet wheel cover arranged on a front side portion of a front wall board of the lever block, the ratchet wheel cover is forwards connected with an inner wrench cover and an outer wrench cover in sequence, and a hand wheel is arranged at the front end of the outer wrench cover; the ratchet wheel cover comprises an annular installation flat plate, an annular frontward extending cover plate and a front cover plate, wherein the annular installation flat plate is attached to the front wall board in a fixedly-connected manner, the annular frontward extending cover plate is integrally connected with the side of the periphery of an inner ring of the annular installation flat plate and extends forwards, the front cover plate parallel to the front wall board is integrally connected to the front end of the annular frontward extending cover plate, and an installation hole is formed in the center of the front cover plate. A part, located in the installation hole, of the front cover plate is integrally connected with a first arc-shaped turning edge turning to the outer side of the installation hole, and the inner wrench cover is provided with an inner arc-shaped turning edge, wherein the inner arc-shaped turning edge is located on one side, close to the installation hole, of the first arc-shaped turning edge and used for being connected with the first arc-shaped turning edge in an attached manner and wrapping the first arc-shaped turning edge. The outer cover structure is safe and stable in use, smooth in running and long in service life.
Outer cover structure of lever block
2015-11-25
Patent
Elektronische Ressource
Englisch
IPC: | B66D Haspeln , CAPSTANS |