Steel wire rope anti-falling hoisting device and hoisting equipment

Abstract

The utility model discloses a steel wire rope anti-falling hoisting device and hoisting equipment. The steel wire rope anti-falling hoisting device comprises a hoisting mechanism wound with a first steel wire rope and a second steel wire rope; the first steel wire rope comprises a first connecting section, a second connecting section, a third connecting section and a fourth connecting section, the first connecting section is connected with the hoisting mechanism and the first movable pulley, the second connecting section is connected with the first movable pulley and the first fixed pulley, the third connecting section is connected with the first fixed pulley and the second movable pulley, and the fourth connecting section is connected with the second movable pulley and the hoisting mechanism; the second steel wire rope comprises a fifth connecting section, a sixth connecting section, a seventh connecting section and an eighth connecting section, the fifth connecting section is connected with the hoisting mechanism and the third movable pulley, the sixth connecting section is connected with the third movable pulley and the second fixed pulley, the seventh connecting section is connected with the second fixed pulley and the fourth movable pulley, and the eighth connecting section is connected with the fourth movable pulley and the hoisting mechanism; and the two ends of the anti-falling steel wire rope are connected with the third connecting section and the seventh connecting section correspondingly. The anti-falling device can reduce the risk of goods falling.

Description

Technical Field

[0001] This application relates to the field of lifting equipment technology, and in particular to a wire rope anti-fall lifting device and lifting equipment. Background Technology

[0002] A crane is a mechanical device used for lifting, moving, and placing heavy objects or goods. Existing cranes suspend objects using a hook in their lifting mechanism. The lifting mechanism is one of the most common tools in the field of lifting machinery, mainly composed of a winch mechanism and a hook mechanism. To avoid accidents caused by cargo falling due to wire rope breakage during lifting operations, existing lifting equipment generally uses double wire ropes. However, if one wire rope breaks, the cargo will sway horizontally, resulting in low stability and increasing the risk of falling, thus reducing the safety of the working environment. Utility Model Content

[0003] This application provides a wire rope anti-fall lifting device and lifting equipment, which can reduce the risk of goods falling and ensure personnel safety.

[0004] In a first aspect, embodiments of this application provide a wire rope anti-fall lifting device, including a mounting base, a winch mechanism, a hook assembly, a first pulley assembly, a second pulley assembly, and an anti-fall wire rope; the winch mechanism is wound with a first wire rope and a second wire rope; the hook assembly includes a fixed plate and a hook, the hook being connected to the bottom of the fixed plate; the first pulley assembly includes a first fixed pulley, a first movable pulley, and a second movable pulley, the first fixed pulley being connected to the bottom of the mounting base, and the first movable pulley and the second movable pulley being connected to the fixed plate; the second pulley assembly includes a second fixed pulley, a third movable pulley, and a fourth movable pulley, the second fixed pulley being connected to the bottom of the mounting base, and the third movable pulley and the fourth movable pulley being connected to the fixed plate; the first wire rope includes a first connecting section, a second connecting section, and a second connecting section. The second wire rope comprises a first connecting section, a third connecting section, and a fourth connecting section. The first connecting section connects the hoisting mechanism and the first movable pulley. The second connecting section connects the first movable pulley and the first fixed pulley. The third connecting section connects the first fixed pulley and the second movable pulley. The fourth connecting section connects the second movable pulley and the mounting base. The second wire rope includes a fifth connecting section, a sixth connecting section, a seventh connecting section, and an eighth connecting section. The fifth connecting section connects the hoisting mechanism and the third movable pulley. The sixth connecting section connects the third movable pulley and the second fixed pulley. The seventh connecting section connects the second fixed pulley and the fourth movable pulley. The eighth connecting section connects the fourth movable pulley and the mounting base. One end of the anti-fall wire rope is connected to the third connecting section, and the other end is connected to the seventh connecting section.

[0005] In one possible implementation, the hoisting mechanism includes a hoisting motor and a drum, the hoisting motor being mounted on the mounting base and driving the drum to rotate, and the first wire rope and the second wire rope being wound around the drum.

[0006] In one possible implementation, a universal joint is provided between the drive shaft of the hoist motor and the drum.

[0007] In one possible implementation, the device further includes a slide rail, a mounting plate, and a drive device disposed on the mounting base. The mounting plate is slidably connected to the slide rail, the hoisting mechanism is disposed on the mounting plate, and the drive device drives the mounting plate to move on the slide rail, thereby driving the hoisting mechanism to move in the horizontal direction.

[0008] In one possible implementation, the hook includes a hook body, a locking member, and a resetting member. The hook body includes a hook body and a hook tip connected together, forming a hook opening between the hook body and the hook tip. One end of the locking member is provided with a lifting ring, and the middle part of the locking member is connected to the hook body. The resetting member is disposed between the hook body and the locking member and is used to drive the locking member to move closer to the hook tip, so that the end of the locking member away from the lifting ring abuts against the hook tip.

[0009] Specifically, the lifting ring is driven so that the end of the locking member away from the lifting ring moves away from the hook tip, thereby opening the hook opening.

[0010] In one possible implementation, the hook further includes a connecting shaft, and the middle part of the locking member is rotatably connected to the middle part of the hook body via the connecting shaft.

[0011] In one possible implementation, the hook further includes a groove located on the outside of the hook body and having an opening extending toward the hook tip, within which the locking member slides.

[0012] The wire rope anti-fall lifting device according to the embodiments of this application uses a winch motor to drive the drum to rotate, allowing the first and second wire ropes to wind around the drum, thereby driving the hook assembly to move vertically and thus realizing the lifting and lowering operation of the hook. Because this application adds an anti-fall wire rope between the first and second wire ropes, with one end of the anti-fall wire rope connected to the third connecting segment of the first wire rope and the other end connected to the seventh connecting segment of the second wire rope, in the event of a breakage in the first or second connecting segment, the anti-fall wire rope can provide tension to the third connecting segment. Under the combined action of the third and fourth connecting segments, it can provide tension to the second movable pulley. Similarly, in the event of a breakage in the fourth connecting segment, the anti-fall wire rope can provide tension to the third connecting segment. Under the combined action of the third, second, and first connecting segments and the first fixed pulley, it can provide tension to the first movable pulley. Similarly, even if different sections of the second wire rope break, the anti-fall wire rope can still provide tension to the third and fourth movable pulleys, thereby avoiding the risk of only one wire rope bearing the load if one of the wire ropes breaks. Thus, this application can reduce the risk of goods falling and ensure the safety of personnel.

[0013] Secondly, embodiments of this application provide a lifting device, including the aforementioned wire rope anti-fall lifting device. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the steel wire rope anti-fall lifting device provided in the embodiments of this application;

[0016] Figure 2 This is a schematic diagram of the structure of a first embodiment of the hook provided in this application;

[0017] Figure 3 This is a front view of a first embodiment of the hook provided in this application.

[0018] Figure 4 This is a schematic diagram of the structure of the second embodiment of the hook provided in this application.

[0019] Explanation of icon numbers:

[0020] 10. Wire rope anti-fall lifting device; 100. Mounting base; 200. Winching mechanism; 210. Winching motor; 220. Drum; 230. First wire rope; 231. First connecting section; 232. Second connecting section; 233. Third connecting section; 234. Fourth connecting section; 240. Second wire rope; 241. Fifth connecting section; 242. Sixth connecting section; 243. Seventh connecting section; 244. Eighth connecting section; 300. Anti-fall wire rope;

[0021] 400. Hook assembly; 410. Fixing plate; 500. Hook; 510. Hook body; 511. Hook body; 512. Hook tip; 513. Hook opening; 520. Locking element; 521. Connecting part; 522. Abutting part; 523. Lifting ring; 530. Reset element; 540. Connecting shaft; 550. Slide groove; 600. First pulley assembly; 610. First fixed pulley; 620. First movable pulley; 630. Second movable pulley; 700. Second pulley assembly; 710. Second fixed pulley; 720. Third movable pulley; 730. Fourth movable pulley.

[0022] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0024] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0025] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] This application provides a wire rope fall arrestor lifting device 10 and lifting equipment. The lifting equipment includes a crane and the wire rope fall arrestor lifting device 10 connected to the crane. The crane can be a tower crane, gantry crane, bridge crane, winch, etc., and this application does not limit its application to this type. Please refer to... Figure 1 The wire rope anti-fall lifting device 10 includes a mounting base 100, a winch mechanism 200, a hook assembly 400, a first pulley assembly 600, a second pulley assembly 700, and an anti-fall wire rope 300. The winch mechanism 200 is mounted on the mounting base 100, and the crane is connected to the mounting base 100.

[0028] The winch mechanism 200 includes a winch motor 210 and a drum 220. The winch motor 210 is mounted on a mounting base 100, and the drum 220 is mounted on the mounting base 100 via a pedestal bearing. The drive shaft of the winch motor 210 is rotatably connected to the connecting shaft 540 of the drum 220, thereby driving the drum 220 to rotate. In some connection methods, a universal joint (not shown in the figure) is provided between the drive shaft of the winch motor 210 and the drum 220. The universal joint can, to a certain extent, compensate for the misalignment and angular deviation caused by the misalignment between the axis of the drive shaft of the winch motor 210 and the axis of the connecting shaft 540 of the drum 220, allowing the connected drive shaft and connecting shaft 540 to rotate relatively freely without affecting the overall transmission efficiency. A first wire rope 230 and a second wire rope 240 are wound on the drum 220.

[0029] It should be noted that in some structural forms, the universal joint consists of two intersecting universal shafts and a connecting sleeve. The universal joint mainly consists of an inner ball cover and an outer ball cover. The inner ball cover comprises an inner ring, a ball core, and a cage, while the outer ball cover comprises an outer ring, ball teeth, a housing, and end caps. The inner ring is connected to the drive shaft, while the outer ring is connected to the other side of the drive shaft. The inner and outer rings mesh with each other through the ball core and ball teeth, thus enabling the rotation of the drive shaft. In other embodiments, the universal joint can also have other structures, which are not limited to this application.

[0030] The hook assembly 400 includes a fixing plate 410 and a hook 500. The hook 500 is connected to the bottom of the fixing plate 410. It can be fixedly connected to the fixing plate 410 by threaded fasteners such as bolts or screws, or by welding or snap-fit. Here, this application does not impose specific restrictions on the connection method of the fixing plate 410 and the hook 500.

[0031] It should be noted that the fixing plate 410 and the hook 500 can be made of high-strength alloy steel (steel containing a certain amount of chromium, nickel, molybdenum, etc.) or special alloys (for example, the alloy may contain metals such as titanium and tantalum). These metal materials have high tensile strength and load-bearing capacity, while also exhibiting good corrosion resistance in harsh working environments. This application does not impose specific limitations on the material of the fixing plate 410.

[0032] Please see Figure 1 The first pulley assembly 600 includes a first fixed pulley 610, a first movable pulley 620, and a second movable pulley 630. The first fixed pulley 610 is connected to the bottom of the mounting base 100, and the first movable pulley 620 and the second movable pulley 630 are connected to the fixing plate 410. The second pulley assembly 700 includes a second fixed pulley 710, a third movable pulley 720, and a fourth movable pulley 730. The second fixed pulley 710 is connected to the bottom of the mounting base 100, and the third movable pulley 720 and the fourth movable pulley 730 are connected to the fixing plate 410. Each of the pulleys generally includes a pulley seat and a pulley wheel that rotates on the pulley seat. The pulley seats can be fixed to the mounting base 100 or the fixing plate 410 by welding, bolts, or threaded fasteners such as screws. This application does not limit the specific fixing method of the first pulley assembly 600 and the second pulley assembly 700.

[0033] Please continue reading. Figure 1The first wire rope 230 includes a first connecting section 231, a second connecting section 232, a third connecting section 233, and a fourth connecting section 234. The first connecting section 231 connects the hoisting mechanism 200 and the first movable pulley 620. The second connecting section 232 connects the first movable pulley 620 and the first fixed pulley 610. The third connecting section 233 connects the first fixed pulley 610 and the second movable pulley 630. The fourth connecting section 234 connects the second movable pulley 630 and the mounting base 100. Specifically, the first wire rope 230 extends from the drum 220, first passes through the first movable pulley 620, then passes through the first fixed pulley 610 and the second movable pulley 630 in sequence, and finally is fixed to the mounting base 100. The second wire rope 240 includes a fifth connecting section 241, a sixth connecting section 242, a seventh connecting section 243, and an eighth connecting section 244. The fifth connecting section 241 connects the hoisting mechanism 200 and the third movable pulley 720. The sixth connecting section 242 connects the third movable pulley 720 and the second fixed pulley 710. The seventh connecting section 243 connects the second fixed pulley 710 and the fourth movable pulley 730. The eighth connecting section 244 connects the fourth movable pulley 730 and the mounting base 100. Specifically, the second wire rope 240 extends from the drum 220, first passes through the third movable pulley 720, then passes through the second fixed pulley 710 and the fourth movable pulley 730 in sequence, and finally is fixed to the mounting base 100.

[0034] One end of the anti-fall steel wire rope 300 is connected to the third connecting section 233, and the other end is connected to the seventh connecting section 243.

[0035] Specifically, in the event of a breakage in the first connecting section 231 or the second connecting section 232, the fall arresting wire rope 300 can provide tension to the third connecting section 233. Under the combined action of the third connecting section 233 and the fourth connecting section 234, it can provide tension to the second movable pulley 630, thereby providing tension to the hook assembly 400. In the event of a breakage in the fourth connecting section 234, the fall arresting wire rope 300 can provide tension to the third connecting section 233. Under the combined action of the third connecting section 233, the second connecting section 232, the first connecting section 231, and the first fixed pulley 610, it can provide tension to the first movable pulley 620, thereby providing tension to the hook assembly 400.

[0036] Similarly, in the event of a break in the fifth connecting segment 241 or the sixth connecting segment 242 of the second wire rope 240, the anti-fall wire rope 300 can provide tension to the seventh connecting segment 243. Under the combined action of the seventh connecting segment 243 and the eighth connecting segment 244, it can provide tension to the fourth movable pulley 730, thereby providing tension to the hook assembly 400. In the event of a break in the eighth connecting segment 244, the anti-fall wire rope 300 can provide tension to the seventh connecting segment 243. Under the combined action of the seventh connecting segment 243, the sixth connecting segment 242, the fifth connecting segment 241, and the second fixed pulley 710, it can provide tension to the third movable pulley 720, thereby providing tension to the hook assembly 400.

[0037] In summary, because this application adds a fall arrestor wire rope 300, with one end of the fall arrestor wire rope 300 connected to the third connecting segment 233 of the first wire rope 230 and the other end connected to the seventh connecting segment 243 of the second wire rope 240, this application can avoid the risk of only one wire rope bearing the load in the event that one of the wire ropes breaks. Therefore, this application can greatly reduce the risk of goods falling and ensure personnel safety.

[0038] In some embodiments, the wire rope anti-fall lifting device 10 further includes a slide rail (not shown in the figure), a mounting plate (not shown in the figure), and a drive device (not shown in the figure) disposed on the mounting base 100. The mounting plate is slidably connected to the slide rail, and the hoisting mechanism 200 is disposed on the mounting plate. The drive plate is driven to move on the slide rail, thereby driving the hoisting mechanism 200 to move in the horizontal direction, which in turn drives the hook 500 to move in the horizontal direction. The drive device can be a linear module or a rotary motor with components such as a rotating shaft and a synchronous belt. This application does not limit the specific form of the drive device. Specifically, the drive device of this application can drive the hook 500 to move in the horizontal direction, and the hoisting mechanism 200 can drive the hook 500 to rise and fall in the vertical direction, which is beneficial for lifting, transporting, and placing heavy items or goods.

[0039] Please see Figure 2 and Figure 3The aforementioned hook 500 includes a hook body 510, a locking element 520, and a resetting element 530. The hook body 510 includes a hook body 511 and a hook tip 512 connected together, forming a hook opening 513 between the hook body 511 and the hook tip 512. The hook body 511 is mainly used to carry goods and can be made of steel or alloy steel, with a C-shaped or S-shaped curved shape. One end of the locking element 520 is provided with a lifting ring 523, and the middle part of the locking element 520 is connected to the hook body 511. The resetting element 530 is located between the hook body 511 and the locking element 520, and is used to drive the locking element 520 closer to the hook tip 512, so that the end of the locking element 520 away from the lifting ring 523 abuts against the hook tip 512. The resetting element 530 can be a tension spring, torsion spring, spring, etc., and this application does not limit the specific form of the resetting element 530.

[0040] Please see Figure 2 and Figure 3 The hook 500 also includes a connecting shaft 540. A first connecting hole is provided in the middle of the locking member 520, and a second connecting hole is provided on the hook body 511. The two ends of the connecting shaft 540 are respectively fixed to the first and second connecting holes, allowing the locking member 520 to rotate around the shaft. Of course, to enhance the strength of the hook 500, a fixing block can be welded onto the hook body 511, with the second connecting hole located on the fixing block. During operation, rotating the lifting ring 523 causes the end of the locking member 520 away from the lifting ring 523 to rotate and move away from the hook tip 512, thus opening the hook opening 513. Releasing the lifting ring 523 causes the resetting member 530 to drive the locking member 520 to rotate, causing the end of the locking member 520 away from the lifting ring 523 to abut against the hook tip 512, thus sealing the hook opening 513.

[0041] Please see Figure 4The hook body 511 is provided with a groove 550, which has an opening facing the hook opening 513. The locking member 520 slides within the groove 550. Understandably, to improve the structural strength of the hook 500, the groove 550 is a sheet metal part, fixed to the side wall of the hook body 511 by welding. Of course, in some other embodiments, the groove 550 can also be formed inside the main body of the hook 500. Pulling the lifting ring 523 drives the locking member 520 to slide within the groove 550. At this time, the end of the locking member 520 away from the lifting ring 523 moves away from the hook tip 512. Releasing the lifting ring 523 causes the resetting member 530 to drive the locking member 520 to slide within the groove 550, so that the end of the locking member 520 away from the lifting ring 523 abuts against the hook tip 512. In some connection methods, the reset element 530 is configured as a tension spring, with one end fixed to the hook body 511 and the other end fixed to the locking element 520. After the lifting ring 523 is released, the tension spring can drive the locking element 520 to slide within the groove 550 and move towards the hook tip 512, thereby allowing the end of the locking element 520 away from the lifting ring 523 to abut against the hook tip 512. Understandably, to improve the reset capability of the locking element 520, two tension springs are provided, located at opposite ends of the locking element 520.

[0042] The locking element 520 has a stop portion 522 at the end away from the lifting ring 523 that abuts against the hook tip 512. See also some structural configurations. Figure 2 The locking member 520 includes a connecting portion 521 and an abutting portion 522 connected together. The connecting portion 521 is connected to the lifting ring 523, and the abutting portion 522 abuts against the hook tip 512. During processing, the locking member 520 can be bent to form the connecting portion 521 and the abutting portion 522. This processing method is simple, easy to install and fix, and has low cost. In some other embodiments, the abutting portion 522 can be replaced with a baffle (not shown in the figure). The baffle is connected to the end of the locking member 520 away from the lifting ring 523 and abuts against the hook tip 512. The baffle can increase the contact area with the hook tip 512. Increasing the contact area can disperse the pressure, reduce the pressure per unit area, reduce the stress concentration of the material, and help improve the load-bearing capacity and service life of the present application embodiment. It can also improve the stability and reliability of the connection, thereby improving the stability of the locking state of the hook 500.

[0043] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0044] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A steel wire rope fall arrest hoisting device for hoisting equipment, characterized in that, The device comprises a mounting base, a hoisting mechanism, a hook assembly, a first pulley assembly, a second pulley assembly and a safety wire rope. The hoisting mechanism is mounted on the mounting base and wound with a first wire rope and a second wire rope. The hook assembly comprises a fixed plate and a hook, the hook being connected to the bottom of the fixed plate. The first pulley assembly comprises a first fixed pulley, a first movable pulley and a second movable pulley, the first fixed pulley being connected to the bottom of the mounting base, the first movable pulley and the second movable pulley being connected to the fixed plate. The second pulley assembly comprises a second fixed pulley, a third movable pulley and a fourth movable pulley, the second fixed pulley being connected to the bottom of the mounting base, the third movable pulley and the fourth movable pulley being connected to the fixed plate. The first wire rope comprises a first connecting section, a second connecting section, a third connecting section and a fourth connecting section, the first connecting section connecting the hoisting mechanism and the first movable pulley, the second connecting section connecting the first movable pulley and the first fixed pulley, the third connecting section connecting the first fixed pulley and the second movable pulley, the fourth connecting section connecting the second movable pulley and the mounting base. The second wire rope comprises a fifth connecting section, a sixth connecting section, a seventh connecting section and an eighth connecting section, the fifth connecting section connecting the hoisting mechanism and the third movable pulley, the sixth connecting section connecting the third movable pulley and the second fixed pulley, the seventh connecting section connecting the second fixed pulley and the fourth movable pulley, the eighth connecting section connecting the fourth movable pulley and the mounting base. The safety wire rope is connected to the third connecting section at one end and to the seventh connecting section at the other end.

2. The steel wire rope anti-falling hoisting device according to claim 1, characterized in that, The hoisting mechanism comprises a hoisting motor and a winding drum, the hoisting motor being mounted on the mounting base and driving the winding drum to rotate, the first wire rope and the second wire rope being wound on the winding drum.

3. The steel cable fall arrest hoisting device of claim 2, wherein, A universal joint is arranged between the driving shaft of the hoisting motor and the winding drum.

4. The steel cable fall arrest hoisting device of claim 1, wherein, A sliding rail, a mounting plate and a driving device are further arranged on the mounting base, the mounting plate being slidingly connected to the sliding rail, the hoisting mechanism being arranged on the mounting plate, the driving device driving the mounting plate to move on the sliding rail, thereby driving the hoisting mechanism to move in the horizontal direction.

5. The steel cable fall arrest hoisting device according to any one of claims 1 to 4, characterized in that The hook comprises a hook body, a locking member and a reset member, the hook body comprising a hook shank and a hook tip connected to each other, a hook opening being formed between the hook shank and the hook tip, one end of the locking member being provided with a lifting ring, the middle part of the locking member being connected to the hook shank, the reset member being arranged between the hook shank and the locking member and being used to drive the locking member to move towards the hook tip, so that the end of the locking member away from the lifting ring abuts against the hook tip. The lifting ring is driven to move away from the hook tip, so as to open the hook opening.

6. The steel cable fall arrest hoisting device of claim 5, wherein, The hook further comprises a connecting shaft, the middle part of the locking member being rotatably connected to the middle part of the hook shank through the connecting shaft.

7. The steel cable fall arrest hoisting device of claim 5, wherein, The hook further comprises a sliding groove, the sliding groove being arranged on the outer side of the hook shank and having an opening extending towards the hook tip, the locking member sliding in the sliding groove.

8. A hoisting apparatus characterized by, Includes the wire rope anti-fall lifting device as described in any one of claims 1 to 7.

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