The invention provides a cargo falling prevention device and a hoist, which can prevent cargo from falling even if a switching knob is mistakenly operated towards a rewinding direction side during winding, and can also prevent the cargo from falling even if a reduction gear is damaged. The cargo drop prevention device (100) is provided with: a housing recess (24) which is provided in an extension section (23) extending in the axial direction of the load pulley (20) and which is recessed from the outer peripheral surface; a stopper member (110) housed in the housing recess (24); a holding means for releasing the holding of the stopper member (110) when the centrifugal force is equal to or greater than a predetermined value; a locking plate (130) having an insertion hole (131) through which the extension part (23) is inserted; a locking recess (132) which is recessed from the inner wall of the insertion hole (131) of the locking plate (130) and into which the stopper member (110) protruding from the housing recess (24) enters; and a locking wall (133) that is provided on one end side of the locking recess (132) and stops the rotation of the load pulley (20) by colliding with the stopper member (110).
本发明提供一种即使在卷起时误将切换旋钮向回绕方向侧操作了的情况下,也能够防止货物掉落,并且,即使减速齿轮被损坏,也能够防止货物掉落的货物掉落防止装置以及葫芦;货物掉落防止装置(100)具备:收纳凹部(24),其设置于沿负载滑轮(20)的轴向延伸设置的伸长部(23)上,且从外周面凹陷;限动构件(110),其被收纳于收纳凹部(24)内;保持单元,其在离心力成为规定值以上时,解除对于限动构件(110)的保持;卡定用板(130),其具有供伸长部(23)插通的插通孔(131);卡定凹部(132),其从卡定用板(130)的插通孔(131)的内壁凹陷,且供从收纳凹部(24)突出的限动构件(110)进入;以及卡定壁(133),其设置于卡定凹部(132)的一端侧,通过与限动构件(110)碰撞,使负载滑轮(20)的旋转停止。
Cargo falling prevention device and hoist
货物掉落防止装置以及葫芦
2022-12-23
Patent
Electronic Resource
Chinese
IPC: | B66D Haspeln , CAPSTANS |
Accidental falling prevention speed reducer of mine hoist
European Patent Office | 2023
|