Hoisting device and hoisting mechanism with same

Abstract

The hoisting device comprises a base body, at least one pulley assembly and a bearing rope, the pulley assembly comprises a fixed pulley and at least one movable pulley which are arranged at intervals in the first direction, the fixed pulley is connected with the base body through a first connecting assembly, and the bearing rope is connected with the base body through a second connecting assembly. The bearing ropes comprise the first bearing rope and the second bearing rope, the first bearing rope is wound around the fixed pulley, the two ends of the first bearing rope are used for connecting to-be-hoisted objects, the movable pulley is connected to one end of the first bearing rope, and the second bearing rope is wound around the movable pulley, and the two ends of the second bearing rope are used for connecting to-be-hoisted objects. The hoisting device improves the hoisting stability of the underground diaphragm wall reinforcement cage, so that the construction safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a hoisting device and a hoisting mechanism having the same. Background Art

[0002] During bridge construction, ground-connected wall steel cages are often used as support for deep foundation pits. Their advantages are mainly deep support depth and high support safety. However, due to the long length and heavy weight of ground-connected wall steel cages, they need to be lifted first and then turned vertically during hoisting. The stability of the vertical turning determines the safety of the hoisting. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a hoisting device, which improves the stability of the ground-connected wall steel cage during hoisting, thereby improving the safety of construction.

[0004] According to the lifting device of the first aspect embodiment of the utility model, it includes a base, at least one pulley assembly and a load-bearing rope, the pulley assembly includes a fixed pulley and at least one movable pulley arranged at intervals along a first direction, the fixed pulley is connected to the base through a first connecting assembly, the load-bearing rope includes a first load-bearing rope and a second load-bearing rope, the first load-bearing rope is wound around the fixed pulley, and both ends are used to connect to the objects to be lifted, the movable pulley is connected to one end of the first load-bearing rope, the second load-bearing rope is wound around the movable pulley, and both ends are used to connect to the objects to be lifted.

[0005] According to the hoisting device of the utility model, the pulley assembly composed of the fixed pulley and the movable pulley is connected between the base and the object to be hoisted through the first load-bearing rope and the second load-bearing rope. The length and direction of the first load-bearing rope located at both ends of the fixed pulley and the movable pulley can be adjusted, so that the object to be hoisted can self-adjust and maintain balance when it is vertically turned and turned over, thereby improving the stability of the object to be hoisted when it is vertically turned and turned over, thereby improving the safety of construction.

[0006] According to some embodiments of the present application, there are more than two pulley assemblies, and the more than two pulley assemblies are arranged at intervals along a second direction that forms a certain angle with the first direction.

[0007] According to some embodiments of the present application, the first connecting assembly includes a sling, the sling is provided with two or more sling holes spaced apart along the second direction, and the pulley assembly is connected to the sling holes in a one-to-one correspondence.

[0008] According to some embodiments of the present application, the sling is a fish-belly structure, and a reinforcing beam is provided on the sling along the second direction.

[0009] According to some embodiments of the present application, the first connecting component also includes a first connecting member, which is a flexible member. The sling is connected to the base through the first connecting member. The sling has at least two sling holes, and the first connecting member is connected to the at least two sling holes.

[0010] According to some embodiments of the present application, the lifting device further includes an anchor, which is used to connect the object to be lifted, and the load-bearing rope is connected to the anchor.

[0011] According to some embodiments of the present application, the anchoring piece is provided with an anchoring hole, and the load-bearing rope is connected to the anchoring hole.

[0012] According to some embodiments of the present application, the anchoring piece is used to form an anchoring hole with the object to be hoisted, and the carrying rope is connected to the anchoring hole.

[0013] According to some embodiments of the present application, the anchor includes a first anchor body, which is a U-shaped structure. The open end of the first anchor body is used to connect with the object to be hoisted to close the open end, and an anchor hole is formed between the closed end and the open end of the first anchor body.

[0014] According to the lifting mechanism of the embodiment of the second aspect of the utility model, it includes at least two lifting devices in the above-mentioned embodiments arranged at intervals along the first direction, one lifting device located at one end is the main lifting, and the remaining lifting devices are auxiliary liftings. The lifting devices include anchors for connecting to the object to be lifted; the anchors of the main lifting are provided with anchor holes connected to the load-bearing rope; the auxiliary lifting is on the end away from the main lifting, and at least one anchor is used to form an anchor hole with the object to be lifted so as to be connected to the load-bearing rope.

[0015] According to the hoisting mechanism of the utility model, by using at least two hoisting devices of the above embodiment arranged along the first direction, it is possible to hoist objects to be hoisted that are longer in the first direction, thereby improving the applicability of hoisting. The main hoisting device uses an anchoring piece with an anchoring hole, which has a high structural strength and high connection stability, and the auxiliary hoisting device uses an anchoring piece that forms an anchoring hole with the object to be hoisted, which saves materials, reduces costs, and meets the bearing capacity requirements.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a lifting device according to an embodiment of the utility model at one angle;

[0018] Figure 2 It is a structural schematic diagram of another angle of the lifting device according to an embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of an embodiment of an anchor according to an embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of another embodiment of an anchor according to an embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of an exploded view of another embodiment of the anchor according to the embodiment of the utility model.

[0022] Figure 6 It is a structural schematic diagram of a state in which a hoisting mechanism according to an embodiment of the utility model hoists an object to be hoisted;

[0023] Figure 7 It is a structural schematic diagram of another state of the hoisting mechanism hoisting the object to be hoisted according to the embodiment of the utility model.

[0024] Reference numerals:

[0025] Lifting device 100,

[0026] Base 10,

[0027] Pulley assembly 20, fixed pulley 21, movable pulley 22,

[0028] The load rope 30, the first load rope 31, the second load rope 32,

[0029] The first connecting component 40, the hanger 41, the hanging hole 41a, the hanger hole 41b, the reinforcing beam 411, the reinforcing plate 412, the first connecting member 42,

[0030] Anchor 50, anchor hole 50a, first anchor 51, second anchor 52, shackle 60,

[0031] Hoisting mechanism 1000 , main hoist 101 , auxiliary hoist 102 , and object to be hoisted 2000 . DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0034] The following describes a hoisting device 100 and a hoisting mechanism 1000 having the same according to an embodiment of the present invention with reference to the accompanying drawings.

[0035] like Figure 1 As shown, the lifting device 100 according to the embodiment of the first aspect of the utility model includes a base 10, at least one pulley assembly 20 and a load-bearing rope 30. The pulley assembly 20 includes a fixed pulley 21 and at least one movable pulley 22 spaced apart along a first direction. The fixed pulley 21 is connected to the base 10 via a first connecting assembly 40. The load-bearing rope 30 includes a first load-bearing rope 31 and a second load-bearing rope 32. The first load-bearing rope 31 is wound around the fixed pulley 21, and both ends are used to connect to the object 2000 to be lifted. The movable pulley 22 is connected to one end of the first load-bearing rope 31, and the second load-bearing rope 32 is wound around the movable pulley 22, and both ends are used to connect to the object 2000 to be lifted.

[0036] Specifically, Figure 1 As shown, the hoisting device 100 in the embodiment of the utility model comprises a base 10, and the base 10 is used to provide support for hoisting. The base 10 can be a hook or the like.

[0037] like Figure 1 and Figure 2 As shown, the hoisting device 100 includes at least one pulley assembly 20, for example, the pulley assembly 20 can be one, two, three, five, etc. The pulley assembly 20 includes a fixed pulley 21 and at least one movable pulley 22 arranged at intervals along a first direction, and the movable pulley 22 can be one or more than two.

[0038] The fixed pulley 21 is connected to the base 10 via a first connecting component 40. The first connecting component 40 may include a rigid connecting member or a flexible connecting member. In the present application, the first connecting component 40 includes a rigid connecting member and a flexible connecting member.

[0039] like Figure 1As shown, the load-bearing rope 30 includes a first load-bearing rope 31 and a second load-bearing rope 32, and the first load-bearing rope 31 and the second load-bearing rope 32 can be steel wire ropes, nylon ropes, etc. The first load-bearing rope 31 is wound around the fixed pulley 21, and both ends are used to connect the object to be hoisted 2000. In this way, when the first load-bearing rope 31 is hoisted, the rope length and direction on both sides of the fixed pulley 21 can be adjusted, so that the object to be hoisted 2000 can self-adjust and maintain balance when turning vertically, thereby improving the stability of the object to be hoisted 2000 when turning vertically. The two ends of the first load-bearing rope 31 can be directly connected to the object to be hoisted 2000, or indirectly connected to the object to be hoisted 2000. The movable pulley 22 is connected to one end of the first load-bearing rope 31, so that one end of the first load-bearing rope 31 is indirectly connected to the object to be hoisted 2000 through the movable pulley 22. The second load-bearing rope 32 is wound around the movable pulley 22, and both ends are used to connect to the object to be hoisted 2000. In this way, the hoisting point between one end of the first load-bearing rope 31 and the object to be hoisted 2000 is increased from one to two, the hoisting points are increased, and the rope length and direction on both sides of the fixed pulley 21 can be adjusted. Therefore, the stability of the object to be hoisted 2000 when it is vertically turned and turned over is further improved, thereby improving the safety of construction.

[0040] Therefore, if Figure 1 and Figure 2 As shown, according to the lifting device 100 of the utility model, the pulley assembly 20 composed of a fixed pulley 21 and a movable pulley 22 is connected between the base 10 and the object 2000 to be lifted by a first load-bearing rope 31 and a second load-bearing rope 32. The length and direction of the first load-bearing rope 31 and the second load-bearing rope 32 located at both ends of the fixed pulley 21 and the movable pulley 22 can be adjusted, so that the object 2000 to be lifted can self-adjust and maintain balance when it is vertically turned and turned over, thereby improving the stability of the object 2000 to be lifted when it is vertically turned and turned over, thereby improving the safety of construction.

[0041] It should be noted that, in the present application, the object 2000 to be hoisted may be a ground-connected wall reinforcement cage. In this case, the first direction may be the length direction of the wall-connected wall reinforcement cage.

[0042] In some embodiments, there can be multiple movable pulleys 22. For example, there can be two movable pulleys 22. The two movable pulleys 22 can be connected to the two ends of the first load-bearing rope 31 respectively. One of the two movable pulleys 22 can also be connected to one end of the first load-bearing rope 31, and the other can be connected to one end of the second load-bearing rope 32, and so on.

[0043] In some embodiments of the present invention, Figure 2 As shown, there are more than two pulley assemblies 20, and the more than two pulley assemblies 20 are arranged at intervals along a second direction that forms a certain angle with the first direction.

[0044] More than two pulley assemblies 20 are arranged at intervals along the second direction, so that in the second direction, there are multiple lifting points between the lifting device 100 and the object 2000 to be lifted, which improves the stability of the object 2000 to be lifted in the second direction during lifting.

[0045] Specifically, the pulley assembly 20 can be two, three, five, etc. The first direction and the second direction can form an acute angle, a right angle, or an obtuse angle. In the present application, the first direction and the second direction form a right angle, that is, the second direction is the width direction of the ground-connected wall reinforcement cage.

[0046] In some embodiments of the present invention, Figure 2 As shown, the first connecting assembly 40 includes a hanger 41, and the hanger 41 is provided with more than two hanging holes 41a arranged at intervals along the second direction, and the pulley assembly 20 is connected to the hanging holes 41a in a one-to-one correspondence.

[0047] By providing a sling 41 and providing more than two sling holes 41 a on the sling 41 , it is convenient to connect with more than two pulley assemblies 20 .

[0048] In some embodiments, the sling 41 is plate-shaped, and the length direction of the sling 41 is the second direction. Two or more lifting holes 41a are evenly arranged on the sling 41 along the second direction. Each lifting hole 41a is provided with a reinforcing plate 412, and the reinforcing plate 412 is provided with a through hole that matches the lifting hole 41a. The fixed pulley 21 and the lifting hole 41a can be connected by a shackle 60, which is convenient for installation and disassembly.

[0049] In some embodiments of the present invention, Figure 2 As shown, the sling 41 is a fish-belly structure, and a reinforcing beam 411 is provided on the sling 41 along the second direction.

[0050] The fish-belly structure has the characteristics of reasonable design, simple structure, easy processing, convenient use, labor-saving and time-saving, and large bearing capacity. At the same time, the fish-belly structure has a large area, which is convenient for setting the hoisting hole 41a and the reinforcing beam 411. Setting the reinforcing beam 411 can improve the bearing capacity of the sling 41 and extend the service life of the sling 41.

[0051] Of course, it is understandable that the hanger 41 may also be other structures, for example, the hanger 41 may be rectangular, etc.

[0052] In some embodiments of the present invention, Figure 2 As shown, the first connecting component 40 also includes a first connecting member 42, which is a flexible member. The hanger 41 is connected to the base 10 through the first connecting member 42. The hanger 41 has at least two hanger holes 41b, and the first connecting member 42 is connected to the at least two hanger holes 41b.

[0053] The first connecting member 42 is configured as a flexible member, for example, it can be a load-bearing rope 30, etc., which is convenient for connection with the sling 41 and has low cost. The first connecting member 42 is connected to the sling hole 41b on the sling 41 to achieve the connection between the first connecting member 42 and the sling 41. The first connecting member 42 and the sling hole 41b can be directly connected or connected through other components. For example, the sling 41 and the base 10 can be connected through a shackle 60, which is convenient for connection and disassembly.

[0054] Providing at least two hanger holes 41b can improve the stability of the hanger 41. The hanger holes 41b are specifically arranged at intervals along the second direction. Preferably, the number of the hanger holes 41b is even and they are symmetrically arranged around the center of the hanger 41.

[0055] In some embodiments of the present invention, Figure 2 As shown, the lifting device 100 further includes an anchor 50 , which is used to connect the object 2000 to be lifted, and the carrying rope 30 is connected to the anchor 50 .

[0056] By providing the anchoring piece 50 connected to the object 2000 to be hoisted, the connection and removal of the carrying rope 30 and the object 2000 to be hoisted are facilitated.

[0057] In some embodiments, the anchor 50 is fixedly connected to the object to be hoisted 2000 by welding or the like. Of course, it is understandable that the anchor 50 can also be movably connected to the object to be hoisted 2000 by other means.

[0058] It should be noted that the end of the carrying rope 30 forms a ring structure, which is convenient for connection via the shackle 60 .

[0059] In some embodiments of the present invention, Figure 3 As shown, the anchor 50 is provided with an anchor hole 50a, and the carrying rope 30 is connected to the anchor hole 50a.

[0060] By providing an anchor hole 50a on the anchor 50, it is convenient to connect with the carrying rope 30. The anchor hole 50a can be a through hole provided on the anchor 50, or a mounting portion provided on the anchor 50, and the mounting portion is provided with a through hole.

[0061] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the anchoring member 50 is used to form an anchoring hole 50a with the object to be hoisted 2000, and the carrying rope 30 is connected to the anchoring hole 50a.

[0062] The anchoring piece 50 formed by forming an anchoring hole 50a on the object to be hoisted 2000 facilitates connection with the carrying rope 30. The anchoring piece 50 and the object to be hoisted 2000 forming the anchoring hole 50a can also save materials, reduce costs, and lighten weight.

[0063] In some embodiments, the anchor 50 may have a notch, and the notch is connected to the object to be lifted 2000 to form an anchoring hole 50a.

[0064] In some embodiments of the present utility model, such as Figure 4 and Figure 5 shown, the anchor 50 includes a first anchor body 51. The first anchor body 51 is of a U-shaped structure. The open end of the first anchor body 51 is used to be connected to the object to be lifted 2000 to close the open end. An anchoring hole 50a is formed between the closed end and the open end of the first anchor body 51.

[0065] The open end of the U-shaped first anchor body 51 is connected to the object to be lifted 2000 to form a closed space. The closed space serves as the anchoring hole 50a and is connected to the load-bearing rope 30, which is convenient for connection and disassembly.

[0066] In some embodiments, the first anchor body 51 is of a "ji" shape. The anchor 50 further includes a second anchor body 52. The second anchor body 52 is of a C-shaped structure. The second anchor body 52 can be one or two. The second anchor body 52 is connected to one side of the first anchor body 51, increasing the connection area between the anchor 50 and the object to be lifted 2000 and improving the connection reliability. In the solution of this application, the second anchor body 52 is two, which are respectively connected to both sides of the first anchor body 51 to form an X-shaped structure with the first anchor body 51.

[0067] According to the hoisting mechanism 1000 of the second aspect embodiment of the present utility model, as Figure 6 and Figure 7 shown, it includes at least two hoisting devices 100 arranged at intervals in the first direction in the above embodiments. One hoisting device 100 at one end is the main hoisting 101, and the remaining hoisting devices 100 are auxiliary hoistings 102. The hoisting device 100 includes an anchor 50 for connecting to the object to be lifted 2000; the anchor 50 of the main hoisting 101 is provided with an anchoring hole 50a for connecting to the load-bearing rope 30; at least one anchor 50 at the end of the auxiliary hoisting 102 away from the main hoisting 101 is used to form an anchoring hole 50a with the object to be lifted 2000 for connecting to the load-bearing rope 30.

[0068] According to the hoisting device 100 of the present utility model, as Figure 6 and Figure 7 shown, by adopting at least two hoisting devices 100 arranged in the first direction in the above embodiments, the object to be lifted 2000 that is longer in the first direction can be hoisted, improving the applicability of hoisting. The anchor 50 with an anchoring hole 50a is adopted on the main hoisting 101, which has higher structural strength and higher connection stability. The anchor 50 that forms an anchoring hole 50a with the object to be lifted 2000 is adopted on the auxiliary hoisting 102, saving materials, reducing costs, and meeting the bearing capacity requirements.

[0069] In some embodiments, there are three lifting points between the main lifting device 101 and the auxiliary lifting device 102 and the object to be lifted 2000, wherein the anchors 50 of the three lifting points of the main lifting device 101 have anchor holes 50a, and among the three lifting points of the auxiliary lifting device 102, the anchor 50 close to the main lifting device 101 has an anchor hole 50a, and the other two anchors 50 form anchor holes 50a with the object to be lifted 2000. The other two anchors 50 can be U-shaped, U-shaped plus C-shaped, etc.

[0070] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0071] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0074] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lifting device, characterized in that: include: A substrate (10); at least one pulley assembly (20), the pulley assembly (20) comprising a fixed pulley (21) and at least one movable pulley (22) arranged at intervals along a first direction, the fixed pulley (21) being connected to the base (10) via a first connecting assembly (40); A load-bearing rope (30), the load-bearing rope (30) comprising a first load-bearing rope (31) and a second load-bearing rope (32), the first load-bearing rope (31) being wound around the fixed pulley (21), and having two ends used for connecting to the object to be hoisted (2000), the movable pulley (22) being connected to one end of the first load-bearing rope (31), the second load-bearing rope (32) being wound around the movable pulley (22), and having two ends used for connecting to the object to be hoisted (2000).

2. The lifting device according to claim 1, characterized in that: There are more than two pulley assemblies (20), and the more than two pulley assemblies (20) are arranged at intervals along a second direction that forms a certain angle with the first direction.

3. The lifting device according to claim 2, characterized in that: The first connection assembly (40) comprises a sling (41), the sling (41) being provided with two or more sling holes (41a) spaced apart along the second direction, and the pulley assembly (20) being connected to the sling holes (41a) in a one-to-one correspondence.

4. The lifting device according to claim 3, characterized in that: The sling (41) is a fish-belly structure, and a reinforcing beam (411) is provided on the sling (41) along the second direction.

5. The lifting device according to claim 3, characterized in that: The first connecting component (40) also includes a first connecting member (42), which is a flexible member. The hanger (41) is connected to the base (10) via the first connecting member (42), and the hanger (41) has at least two hanger holes (41b). The first connecting member (42) is connected to the at least two hanger holes (41b).

6. The lifting device according to any one of claims 1 to 5, characterized in that: It also includes an anchor (50), wherein the anchor (50) is used to connect the object to be hoisted (2000), and the carrying rope (30) is connected to the anchor (50).

7. The lifting device according to claim 6, characterized in that: The anchoring piece (50) is provided with an anchoring hole (50a), and the carrying rope (30) is connected to the anchoring hole (50a).

8. The lifting device according to claim 6, characterized in that: The anchoring piece (50) is used to form an anchoring hole (50a) with the object to be hoisted (2000), and the carrying rope (30) is connected to the anchoring hole (50a).

9. The lifting device according to claim 8, characterized in that: The anchor (50) includes a first anchor (51), which is a U-shaped structure. The open end of the first anchor (51) is used to connect with the object to be hoisted (2000) to close the open end, and the anchor hole (50a) is formed between the closed end and the open end of the first anchor (51).

10. A hoisting mechanism, characterized in that: The invention comprises at least two lifting devices (100) according to any one of claims 1 to 5 arranged at intervals along the first direction, wherein one of the lifting devices (100) located at one end is a main lifting device (101), and the remaining lifting devices (100) are auxiliary lifting devices (102), and the lifting device (100) comprises an anchor (50) for connecting with the object to be lifted (2000); The anchoring member (50) of the main hoisting device (101) is provided with an anchoring hole (50a) connected to the carrying rope (30); The auxiliary hoist (102) is at one end away from the main hoist (101), and at least one anchor (50) is used to form an anchor hole (50a) with the object to be hoisted (2000) so as to be connected to the carrying rope (30).

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