Anti-falling hoisting device

Abstract

The utility model relates to an anti-falling hoisting device, which comprises a pulley yoke, a pulley, a pulley shaft, a steel pipe and an anti-falling steel wire rope, the upper end of the pulley yoke is hoisted on a beam or a wall, the pulley is movably arranged in the pulley yoke through the pulley shaft, the steel pipe is arranged at the lower end of the pulley yoke, and the anti-falling steel wire rope penetrates through the steel pipe. The two ends of the anti-falling steel wire rope are connected with a beam or a wall, and the anti-falling steel wire rope and the lifting rope wound on the pulley are crossed. The anti-falling steel wire rope penetrates through the lower portion of the pulley through the steel pipe, the steel pipe guarantees that the pulley cannot be wound with the anti-falling steel wire rope in the running process, normal rotation of the pulley is not affected, the anti-falling steel wire rope can play an anti-falling role, the hoisting device and hoisted heavy objects are prevented from falling, and production safety is guaranteed. And when the pulley shaft is broken, the steel pipe is matched with the limiting frame to prevent the pulley and the anti-falling steel wire rope from falling to the ground, and the steel pipe can also bear the maximum weight of the pulley and a hoisted object.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, in particular to an anti-falling hoisting device. Background Art

[0002] A pulley sling is a device used to lift and move heavy objects by combining a pulley (a simple machine that primarily reduces friction by rolling its wheel rim, thereby changing the direction of force or achieving a labor-saving effect) with a sling (a general term for tools used to connect the crane and the object being hoisted during lifting operations). Pulleys play a transmission and auxiliary role in slings, making lifting operations more efficient and safer. They are commonly used in oil well operations and the construction industry. During the lifting of heavy objects, safety failures such as pulley shaft breakage or pulley block detachment are inevitable. Current lifting devices do not have a safety redundancy setting to prevent pulley block falls. Once a pulley block falls, it cannot be saved, so improvements are needed. Utility Model Content

[0003] Based on this, it is necessary to provide an anti-falling hoisting device to address the above problems.

[0004] An anti-falling hoisting device comprises a pulley frame, a pulley, a pulley shaft, a steel pipe and an anti-slip steel wire rope, wherein the upper end of the pulley frame is hoisted on a beam or a wall, the pulley is movably installed in the pulley frame through the pulley shaft, the steel pipe is installed at the lower end of the pulley frame, the anti-slip steel wire rope passes through the steel pipe, both ends of the anti-slip steel wire rope are connected to the beam or the wall, and the anti-slip steel wire rope and the lifting rope wrapped around the pulley are cross-shaped.

[0005] Preferably, a limiting frame is further provided on the pulley frame, the limiting frame is cross-connected with the pulley frame, and both ends of the limiting frame are provided with limiting pins.

[0006] Preferably, both ends of the pulley shaft are extended outside the pulley frame, one end of the pulley shaft is locked by a pin, and both ends of the pulley shaft are provided with anti-fall hooks, and the anti-fall hooks are connected to the beam or wall or pulley frame through ropes.

[0007] Preferably, the outer peripheral surface of the pulley is provided with a groove for matching with the suspension rope.

[0008] The benefits of this utility model lie in that the anti-slip wire rope is passed through a steel pipe under the pulley. The steel pipe ensures that the pulley will not be entangled with the anti-slip wire rope during operation, thereby preventing the normal rotation of the pulley. The anti-slip wire rope can also prevent the lifting device and the hoisted load from falling, thereby ensuring production safety. In addition, if the pulley shaft breaks, the steel pipe and the limit frame can prevent the pulley and the anti-slip wire rope from falling to the ground. The steel pipe can also support the maximum weight of the pulley and the hoisted load. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a structural diagram of an anti-falling hoisting device according to one embodiment;

[0010] Figure 2 The figure is a side view schematic diagram of a fall prevention hoisting device. DETAILED DESCRIPTION

[0011] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0012] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0013] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0014] like Figures 1-2As shown, an anti-falling hoisting device includes a pulley frame 1, a pulley 2, a pulley shaft 3, a steel pipe 4 and an anti-slip steel wire rope 5, the upper end of the pulley frame 1 is hoisted on a beam or a wall, the pulley 2 is movably mounted in the pulley frame 1 through the pulley shaft 3, the steel pipe 4 is mounted on the lower end of the pulley frame 1, the anti-slip steel wire rope 5 passes through the steel pipe 4, the two ends of the anti-slip steel wire rope 5 are connected to the beam or the wall, and the anti-slip steel wire rope 5 and the suspension rope wound on the pulley 2 are cross-intersecting. Specifically, in this embodiment, the upper end of the pulley frame 1 is connected to the beam or the wall by a bolt or a pin and fixed, the pulley 2 is movably sleeved on the pulley shaft 3, specifically by a bearing connection, so that the pulley 2 can rotate in the pulley frame 1, and the suspension rope (not shown) is sleeved on the pulley 2, and the heavy object can be lifted by the suspension rope. In order to prevent the pulley frame 1 from detaching from the beam or wall during lifting of heavy objects, and the lifting device and the heavy objects from falling synchronously, we have set a steel pipe 4 at the lower end of the pulley frame 1. The steel pipe 4 is located directly below the pulley 2 and is used to insert the anti-slip wire rope 4. The anti-slip wire rope 4 is made of steel rope with strong load-bearing capacity, and the steel pipe 4 limits the anti-slip wire rope 5 to prevent the pulley 2 from "biting" the anti-slip wire rope 5 during rotation, causing the pulley 2 to be unable to rotate freely. The anti-slip wire rope 5 is limited by the steel pipe 4 and crosses the lifting rope of the heavy object. When the lifting device falls as a whole, the anti-slip wire rope 5 can cooperate with the pulley 2 and the lifting rope wrapped around the pulley 2 to hoist the lifting device to prevent it from falling and avoid safety accidents.

[0015] like Figure 2 As shown, the pulley frame 1 is also provided with a limit frame 6, which is cross-connected to the pulley frame 1 and has limit pins 61 at each end. Specifically, the limit frame 6 is arranged horizontally and cooperates with the steel pipe 4 to restrain the pulley 2 from the front and back directions and the bottom direction. The limit pins 61 are provided at both ends to prevent the pulley 2 from detaching from the pulley frame 1. The steel pipe 4 located at the lower end of the pulley 2 can withstand the maximum weight of the pulley 2 and the suspended object.

[0016] like Figures 1-2 As shown, both ends of the pulley shaft 3 extend outside the pulley frame 1. One end of the pulley shaft 3 is locked with a latch, and both ends of the pulley shaft 3 are equipped with anti-fall hooks 31. The anti-fall hooks 31 are connected to the beam, wall, or pulley frame 1 via ropes. Specifically, the pulley shaft 3 is locked with a latch, and the latch abuts the outer side of the pulley frame 1, which can prevent the pulley shaft 3 from vibrating and deflecting during the rotation of the pulley 2. The anti-fall hooks 31 at both ends are connected to the beam, wall, or pulley frame 1 via ropes to prevent the pulley shaft 3 from breaking and falling directly.

[0017] like Figure 1As shown, the outer peripheral surface of the pulley 2 is provided with a groove 21 for matching with the suspension rope, and the suspension rope is embedded in the groove 21 to prevent the suspension rope from being separated from the wheel surface of the pulley 2 and being stuck during the rotation of the pulley 2.

[0018] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. An anti-fall hoisting device, characterized in that: The utility model comprises a pulley frame, a pulley, a pulley shaft, a steel pipe and an anti-slip steel wire rope. The upper end of the pulley frame is hoisted on a beam or a wall. The pulley is movably installed in the pulley frame through the pulley shaft. The steel pipe is installed at the lower end of the pulley frame. The anti-slip steel wire rope passes through the steel pipe. Both ends of the anti-slip steel wire rope are connected to the beam or the wall. The anti-slip steel wire rope and the suspension rope wrapped around the pulley are cross-crossed.

2. The anti-falling hoisting device according to claim 1, characterized in that: A limiting frame is also provided on the pulley frame. The limiting frame is cross-connected with the pulley frame, and both ends of the limiting frame are provided with limiting pins.

3. The anti-falling hoisting device according to claim 1, characterized in that: Both ends of the pulley shaft are extended and arranged outside the pulley frame, one end of the pulley shaft is locked by a pin, and both ends of the pulley shaft are provided with anti-fall hooks, and the anti-fall hooks are connected to the beam or wall or the pulley frame through ropes.

4. The anti-falling hoisting device according to claim 1, characterized in that: The outer peripheral surface of the pulley is provided with a groove for matching with the suspension rope.

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