There is provided herein a load-lifting device for personal or mechanical use, a method of operating the load-lifting device and a fishing pole having the load-lifting device.

There is provided herein a load-lifting device for personal or mechanical use, a method of operating the load-lifting device and a fishing pole having the load-lifting device.

The present invention discloses a super large tonnage detachable hook. The hook comprises: a hook rod, a hook shaft, a hook body, a spherical roller bearing, and a thrust spherical roller bearing. The hook also contains a connection component which connects the hook rod to the hook body. The split-type self-locking sleeve is integrally connected to the hook rod by means of the hook hoop holder. This connection form adopts the meshing of the sleeve and the toothed sleeve of the hook rod to transmit the load, and the bearing capacity is greatly improved compared with the traditional screw connection. The split-type self-locking sleeve can hold the toothed sleeve on the hook rod from both sides respectively. This new type of hook adopts a special structure force transmission system, so that the hook can withstand the downward and upward bi-directional load, which solves the problem that the traditional hook is prone to damage once it hits the ground. The main load-bearing components of the hook assembly are forged of high-strength alloy steel 30CrNiMo8 as a whole. The hook achieves a good overall load-enduring performance and longer fatigue life. The lifting hook provided by the present invention has a single hook with an extremely large lifting weight of 5,000 tons and above; and creatively adopts a new structure form, a force transmission system, a material, and a manufacturing form. The hook has many advantages, such as: light weight, large bearing capacity, reasonable force transmission path, good waterproof performance, long service life and other advantages. It can greatly improve the working capacity and efficiency of floating cranes.

Described herein is a hoist fleet system including a head block and a guide fleet assembly. The head block includes a plurality sheaves having more than one diameter. The guide fleet assembly can be arranged proximate the head block such that an array of lift lines can be routed through the plurality of sheaves of the head block into the guide fleet assembly. The guide fleet assembly further includes a plurality of guide sheaves and a plurality of plates. The plurality of plates is configured to house the plurality of guide sheaves. The plurality of guide sheaves is positioned substantially orthogonal to the head block. The plurality of plates is further arranged such that the plurality of guide sheaves is arranged on more than one plane. The plurality of guide sheaves is configured to reduce the spacing of the lift lines.

A vertical lifting device and method are provided. The vertical lifting device includes a fixed frame fixed to a foundation. A first cavity allowing passage of a lifting rope is provided in the middle of the fixed frame. A sliding frame moving horizontally on the fixed frame is arranged above the fixed frame. A second cavity allowing passage of the lifting rope is provided in the middle of the sliding frame. At least two stepping vehicles alternately lowering or lifting weights are arranged on the sliding frame and move on the sliding frame. The stepping vehicles are spaced in preset distances. The lifting rope penetrates through the stepping vehicles in sequence. Each stepping vehicle is provided with a clamping part clamping the lifting rope and a driving mechanism driving the stepping vehicle to move on the sliding frame.

A vertical lifting device and method are provided. The vertical lifting device includes a fixed frame fixed to a foundation. A first cavity allowing passage of a lifting rope is provided in the middle of the fixed frame. A sliding frame moving horizontally on the fixed frame is arranged above the fixed frame. A second cavity allowing passage of the lifting rope is provided in the middle of the sliding frame. At least two stepping vehicles alternately lowering or lifting weights are arranged on the sliding frame and move on the sliding frame. The stepping vehicles are spaced in preset distances. The lifting rope penetrates through the stepping vehicles in sequence. Each stepping vehicle is provided with a clamping part clamping the lifting rope and a driving mechanism driving the stepping vehicle to move on the sliding frame.

A wire pulling windier apparatus attachable to a tractor, loader or other mobile transport device capable of receiving attachments has a pass through frame attachable to the mobile device, a vertical support member on the frame for supporting a first winch with cable for attaching and pulling a fence wire to be tensioned, a second winch for raising and lowering a slide block assembly through which the first winch cable is guided to allow pulling the first winch cable at different vertical heights, and has winch tension limiting apparatus.

A wire pulling windier apparatus attachable to a tractor, loader or other mobile transport device capable of receiving attachments has a pass through frame attachable to the mobile device, a vertical support member on the frame for supporting a first winch with cable for attaching and pulling a fence wire to be tensioned, a second winch for raising and lowering a slide block assembly through which the first winch cable is guided to allow pulling the first winch cable at different vertical heights, and has winch tension limiting apparatus.

The invention relates to a device (10) for safe access to a confined space, comprising: a rectilinear support strut (12), two arms (14, 16) each fixed rigidly to an end (12a) of the strut, at right angles thereto and in opposite directions. A first arm (14) comprises at least one anchoring element (18), the second arm (16) being provided with at least two pulleys (20, 22) whose axis of rotation is at right angles to the plane defined by the strut and the arms. The anchoring element (18) and the two pulleys (20, 22) are arranged so as to allow the passage of a cordage of the anchoring element to the pulleys without interfering with the strut and the first and second arms. The strut (12) has at least one fixing member intended to cooperate with an opening (84) of the confined space in order to ensure the fixing thereof.

The invention relates to a device (10) for safe access to a confined space, comprising: a rectilinear support strut (12), two arms (14, 16) each fixed rigidly to an end (12a) of the strut, at right angles thereto and in opposite directions. A first arm (14) comprises at least one anchoring element (18), the second arm (16) being provided with at least two pulleys (20, 22) whose axis of rotation is at right angles to the plane defined by the strut and the arms. The anchoring element (18) and the two pulleys (20, 22) are arranged so as to allow the passage of a cordage of the anchoring element to the pulleys without interfering with the strut and the first and second arms. The strut (12) has at least one fixing member intended to cooperate with an opening (84) of the confined space in order to ensure the fixing thereof.