Lifting appliance and lifting equipment

Abstract

The embodiment of the utility model provides a lifting appliance and lifting equipment, and relates to the field of lifting appliances. The lifting appliance comprises a sliding shaft, a lifting bearing piece and a carrying support, the lifting bearing piece is arranged on the sliding shaft in a sliding mode, the carrying support is connected with the lifting bearing piece, the carrying support synchronously moves along with the lifting bearing piece, and the carrying support is used for loading and lifting objects. When the battery modules of different sizes need to be loaded, only the carrying support needs to be moved to a proper position to load the battery modules, the carrying support capable of being moved and adjusted is suitable for loading the battery modules of different sizes, and the problem that at present, lifting tools need to be replaced frequently when the battery modules of different sizes are lifted is solved; and the hoisting moving speed of the battery module is increased, and the production efficiency of the whole production line is improved.

Description

Technical Field

[0001] The utility model relates to the field of lifting tools, and more specifically, to a lifting tool and a hoisting device. Background Art

[0002] For power battery modules with large volume and high weight, the lifting and moving are usually completed by means of a lifting tool. However, the sizes and structures of power battery modules are not exactly the same. When lifting and moving battery modules with different sizes and structures, the lifting tool needs to be frequently replaced. The process of replacing the lifting tool seriously affects the lifting and moving speed of the battery module, thus reducing the production efficiency. Summary of the Utility Model

[0003] The utility model provides a lifting tool and a hoisting device, which solve the problem that the lifting tool needs to be frequently replaced when lifting battery modules of different sizes.

[0004] The embodiments of the utility model can be implemented as follows:

[0005] An embodiment of the utility model provides a lifting tool, which includes:

[0006] A sliding shaft, and

[0007] A load-bearing member, which is slidably arranged on the sliding shaft;

[0008] A load-carrying bracket, which is connected to the load-bearing member, and the load-carrying bracket moves synchronously with the load-bearing member. The load-carrying bracket is used for loading the hoisted object.

[0009] Optionally, a positioning ring is arranged on the sliding shaft to position the load-bearing member.

[0010] Optionally, a first sliding hole is arranged on the load-bearing member, and the sliding shaft passes through the first sliding hole.

[0011] Optionally, the number of the sliding shafts is two, and the two sliding shafts are arranged in parallel;

[0012] The load-bearing member is an arc-shaped beam, which includes a beam middle part and beam end parts. A hoisting hole is arranged in the beam middle part, and a first sliding hole is arranged in the beam end parts;

[0013] The arc-shaped beam is slidably matched with the two sliding shafts through the first sliding holes at both ends thereof.

[0014] Optionally, the lifting tool further includes an extension bracket, which is detachably connected to the load-carrying bracket.

[0015] Optionally, the load-carrying bracket includes a sliding part and a load-carrying part, the sliding part is connected to the load-carrying part, the sliding part is slidably matched with the sliding shaft, and the load-carrying part is used for loading the hoisted object.

[0016] Optionally, the lifting tool further includes a fixed beam, and the sliding shaft is connected to the fixed beam.

[0017] Optionally, the sling further includes a sliding cylinder for reducing friction, and both the load-carrying bracket and the lifting member are sleeved on the sliding cylinder.

[0018] Optionally, the load-carrying bracket is connected to the lifting member.

[0019] An embodiment of the present utility model also provides a hoisting device, which includes a hook, a power source and the above-mentioned sling. The hook is connected to the sling, and the power source drives the hook to move.

[0020] The beneficial effects of the sling and the hoisting device according to the embodiments of the present utility model include, for example:

[0021] The sling includes a sliding shaft, a lifting member and a load-carrying bracket. The lifting member is slidably arranged on the sliding shaft. The load-carrying bracket is connected to the lifting member, and the load-carrying bracket moves synchronously with the lifting member. The load-carrying bracket is used for loading hoisted items. When it is necessary to load battery modules of different sizes, only need to move the load-carrying bracket to a suitable position to load the battery module. The load-carrying bracket that can be moved and adjusted is suitable for loading battery modules of different sizes, solves the problem that the sling needs to be frequently replaced when hoisting battery modules of different sizes at present, improves the hoisting and moving speed of the battery module, and improves the production efficiency of the entire production line.

[0022] The hoisting device includes a sling, which has all the functions of the sling. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic structural diagram of the sling provided in the embodiment of the present utility model;

[0025] Figure 2 It is a schematic diagram of the sling provided in the embodiment of the present utility model hoisting the first type of battery module;

[0026] Figure 3 It is a schematic structural diagram of the lifting member provided in the embodiment of the present utility model;

[0027] Figure 4 It is a schematic structural diagram of the positioning ring provided in the embodiment of the present utility model;

[0028] Figure 5 It is a schematic structural diagram of the fixed beam provided in the embodiment of the present utility model;

[0029] Figure 6 The structural schematic diagram of the sliding cylinder provided in the embodiment of the present utility model;

[0030] Figure 7 The first perspective schematic diagram of the structure of the load-carrying bracket provided in the embodiment of the present utility model;

[0031] Figure 8 The second perspective schematic diagram of the structure of the load-carrying bracket provided in the embodiment of the present utility model;

[0032] Figure 9 The structural schematic diagram of the extension bracket provided in the embodiment of the present utility model;

[0033] Figure 10 The connection schematic diagram of the extension bracket and the load-carrying bracket provided in the embodiment of the present utility model;

[0034] Figure 11 The position schematic diagram of the extension bracket and the sliding shaft provided in the embodiment of the present utility model;

[0035] Figure 12 The schematic diagram of the sling hoisting the second type of battery module provided in the embodiment of the present utility model.

[0036] Icon: 1 - sliding shaft; 10 - positioning ring; 101 - through hole; 102 - expansion joint; 103 - adjusting screw hole; 2 - lifting member; 20 - hoisting hole; 21 - first sliding hole; 22 - middle of the beam; 23 - end of the beam; 231 - first locking screw hole; 24 - adjusting slot; 25 - first pressure relief groove; 3 - load-carrying bracket; 30 - sliding part; 301 - second sliding hole; 31 - load-carrying part; 311 - second positioning pin; 32 - handle; 33 - rotary lock; 4 - extension bracket; 40 - connection hole; 41 - first positioning pin; 5 - fixed beam; 50 - beam body; 51 - movable ring block; 52 - fixing hole; 53 - gap; 54 - second locking screw hole; 55 - second pressure relief groove; 6 - sliding cylinder; 60 - cylinder; 61 - abutting ring; 7 - battery module. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.

[0038] Accordingly, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0039] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0040] In the description of the present utility model, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0041] In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0042] The term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0043] Unless otherwise clearly defined and limited, terms such as "arranged", "connected", etc. shall be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] It should be noted that, without conflict, the features in the embodiments of the present utility model can be combined with each other.

[0045] Due to different sizes of the battery modules, during the hoisting and moving process of the battery modules, the lifting tools need to be frequently replaced, resulting in a slow hoisting and moving speed of the battery modules and a reduction in production efficiency.

[0046] In view of this, the lifting tool and hoisting equipment provided in the embodiments of the present utility model can solve the above problems, and will be described in detail below.

[0047] The hoisting equipment in this embodiment can be used for hoisting and moving battery modules 7 of different sizes. The hoisting equipment includes a lifting tool, a hook and a power source. The hook is connected to both the power source and the lifting tool at the same time. The power source drives the hook to move, and the hook drives the lifting tool to move, thereby hoisting and moving the battery module 7. Of course, in addition to hoisting and moving the battery module 7, the hoisting equipment provided in this embodiment can also hoist and move other items such as battery packs, components, and structural parts.

[0048] The following will take the hoisting and moving of the battery module as an example to describe the lifting tool in detail.

[0049] Refer to Figure 1 And Figure 2 , the lifting tool includes a sliding shaft 1, a load-bearing member 2 and a load-carrying bracket 3. The load-bearing member 2 is slidably arranged on the sliding shaft 1. The load-carrying bracket 3 is connected to the load-bearing member 2 and moves synchronously with the load-bearing member 2. The load-carrying bracket 3 is used to load the hoisted items. The load-bearing member 2 drives the load-carrying bracket 3 to move on the sliding shaft 1 to ensure that the load-carrying bracket 3 can adapt to the size of the hoisted items and load stably. In this embodiment, the hoisted item is the battery module 7. The form in which the load-carrying bracket 3 loads the battery module 7 can be clamping the battery module 7 on the load-carrying bracket 3, or placing the battery module 7 on the load-carrying bracket 3. Correspondingly, the structure of the load-carrying bracket 3 is different for different loading forms.

[0050] The load-bearing member 2 is in sliding fit with the sliding shaft 1. The number of sliding shafts 1 can be one, two or more than two. The load-bearing member 2 is provided with first sliding holes 21 corresponding to the number of sliding shafts 1. The load-bearing member 2 is slidably arranged on the sliding shaft 1 through the first sliding holes 21. When the number of sliding shafts 1 is one, the number of first sliding holes 21 on the load-bearing member 2 is one; when the number of sliding shafts 1 is two, the number of first sliding holes 21 on the load-bearing member 2 is two. At this time, in order to ensure that the load-bearing member 2 can slide smoothly on the two sliding shafts 1, the two sliding shafts 1 need to be arranged in parallel at intervals. In addition, the sliding shaft 1 can be a round tube, a cylinder, or a square tube or other prisms or prism tubes. Correspondingly, the shape of the first sliding hole 21 matches the outer shape of the sliding shaft 1; when the number of sliding shafts 1 is one, in order to prevent the load-bearing member 2 from swinging or shaking on the sliding shaft 1, the sliding shaft 1 can be selected as a square tube or a prism.

[0051] In this embodiment, two sliding shafts 1 are taken as an example for description.

[0052] Refer toFigure 1 With Figure 3 , the sliding shaft 1 is composed of two parallel and spaced cylindrical shafts, and the lengths and diameters of the two cylindrical shafts are the same. The lifting member 2 is an arc-shaped beam, which includes a beam middle part 22 and beam end parts 23 at both ends. The beam middle part 22 and the beam end parts 23 are integrally formed or welded; among them, a lifting hole 20 is opened in the middle part of the beam middle part 22, and the lifting hole 20 is used to connect with an external lifting device. A first sliding hole 21 is opened in the beam end part 23. The arc-shaped beam is sleeved on the sliding shaft 1 through the first sliding holes 21 at both ends to form a sliding fit. The beam end parts 23 at both ends of the beam middle part 22 are symmetrically arranged with respect to the lifting hole 20; and setting the lifting hole 20 in the middle of the beam middle part 22 is to prevent the uneven weight of the battery module 7 on both sides of the two sliding shafts 1 and prevent the sling and the battery module 7 from tilting during lifting.

[0053] Optionally, in order to enable the above-mentioned arc-shaped beam to slide smoothly on the sliding shaft 1 and can be fixed at a certain position on the sliding shaft 1, an adjustment slit 24 is provided between the beam end part 23 and the beam middle part 22 of the arc-shaped beam. The adjustment slit 24 is arranged along the radial direction of the first sliding hole 21 and extends to the first sliding hole 21. At the same time, first locking screw holes 231 are provided on both sides of the adjustment slit 24. By assembling the corresponding adjustment locking bolts in the first locking screw holes 231, the arc-shaped beam can be locked on the sliding shaft 1, so as to realize the fixation with the sliding shaft 1; when the adjustment locking bolts are taken out from the first locking screw holes 231, the arc-shaped beam slides on the sliding shaft 1. Since the arc-shaped beam needs to bear a large weight, the strength of the arc-shaped beam needs to meet the requirements. Generally, the arc-shaped beam is made of metal materials, such as copper and iron. In order to more easily lock and fix the arc-shaped beam on the sliding shaft 1, a first pressure relief groove 25 is opened on the beam end part 23. The first pressure relief groove 25 is arranged on the side corresponding to the adjustment slit 24. The first pressure relief groove 25 is drilled along the radial direction of the first sliding hole 21 but does not penetrate the beam end part 23. By opening the first pressure relief groove 25, the arc-shaped beam can be fixed and locked on the sliding shaft 1 with less force.

[0054] Of course, for some battery modules 7 with a large mass, it is not reliable to fix the arc-shaped beam on the sliding shaft 1 only by adjusting the locking bolts. There is still a risk that the arc-shaped beam slides along the sliding shaft 1. Therefore, a positioning ring 10 is provided on the sliding shaft 1. On the one hand, the positioning ring 10 can increase the fixing reliability of the arc-shaped beam on the sliding shaft 1, and on the other hand, it can provide a basis for the positioning of the sliding shaft 1, so as to facilitate the lifting of battery modules 7 of different sizes.

[0055] Reference Figure 4, the positioning ring 10 is in a circular ring shape. The middle part of the positioning ring 10 is a circular through hole 101. The positioning ring 10 is sleeved on the sliding shaft 1 through the through hole 101. A telescopic slit 102 is also formed in the positioning ring 10 along its radial direction. By means of this telescopic slit 102, the positioning ring 10 can be extruded to cause deformation of the positioning ring 10. An adjusting screw hole 103 is provided on the outer wall of the positioning ring 10. The adjusting screw hole 103 penetrates through the telescopic slit 102 and extends to both sides of the telescopic slit 102. By assembling a corresponding adjusting screw in the adjusting screw hole 103, the positioning ring 10 can be deformed, thereby changing the size of the through hole 101. Since the sliding shaft 1 passes through the through hole 101, when the through hole 101 becomes smaller, the positioning ring 10 will be firmly fixed on the sliding shaft 1. When the adjusting screw is taken out from the adjusting screw hole 103, the positioning ring 10 can slide along the sliding shaft 1.

[0056] In addition, fixing beams 5 are connected to both ends of the sliding shaft 1. The two sliding shafts 1 are connected together by the two fixing beams 5 and the sliding shafts 1 are positioned. Refer to Figure 5 , the fixing beam 5 includes a beam main body 50 and movable ring blocks 51 provided at both ends of the beam main body 50. The movable ring blocks 51 are located at the end faces of the beam main body 50. The movable ring blocks 51 and the beam main body 50 are integrally formed or welded. The movable ring blocks 51 include two symmetrically arranged parts. The two movable ring blocks 51 enclose to form a fixing hole 52. The sliding shaft 1 passes through the fixing hole 52. At the same time, a gap 53 is left between the two movable ring blocks 51. The size of the fixing hole 52 is adjusted through the gap 53. Second locking screw holes 54 are formed in the two movable ring blocks 51. The second locking screw holes 54 extend to both sides of the gap 53. When locking parts are assembled into the second locking screw holes 54, the gap 53 can be reduced and the two movable ring blocks 51 can be locked and fixed on the sliding shaft 1. Optionally, a second decompression groove 55 is formed on the inner wall of the fixing hole 52. The second decompression groove 55 is located on the opposite side of the gap 53 to facilitate fixing and locking the fixing beam 5 on the sliding shaft 1 with less acting force.

[0057] The function of the load-carrying bracket 3 is to load the battery module 7 and drive the battery module 7 to move. Therefore, the load-carrying bracket 3 only needs to be slidably arranged on the sliding shaft 1. The load-carrying bracket 3 can either be directly connected to the lifting member 2 and move together with the lifting member 2, or have no direct connection relationship with the lifting member 2. In this embodiment, the load-carrying bracket 3 is connected to the lifting member 2 and is arranged together through a sliding cylinder 6.

[0058] Refer to Figure 6, the sliding cylinder 6 is slidably sleeved on the sliding shaft 1. The sliding cylinder 6 includes a cylindrical barrel 60 and an abutting ring 61. The abutting ring 61 is connected to the end face of the cylindrical barrel 60. The outer contour diameter of the abutting ring 61 is larger than the outer contour diameter of the cylindrical barrel 60. Both the lifting member 2 and the load-carrying bracket 3 are sleeved on the outer wall of the cylindrical barrel 60 and are limited by the abutting ring 61. At the same time, a positioning ring 10 is arranged on the side away from the abutting ring 61. The positioning ring 10 and the abutting ring 61 cooperate together to limit the lifting member 2 and the load-carrying bracket 3. Another function of the sliding cylinder 6 is to reduce the friction between the lifting member 2 and the load-carrying bracket 3 and the sliding shaft 1, making it easier for the lifting member 2 and the load-carrying bracket 3 to move on the sliding shaft 1. Optionally, the sliding cylinder 6 is a linear bearing.

[0059] Reference Figure 7 With Figure 8 , the load-carrying bracket 3 is plate-shaped and includes a sliding part 30 and a load-carrying part 31. The sliding part 30 and the load-carrying part 31 are integrally formed or welded. Two second sliding holes 301 are formed in the sliding part 30. The second sliding holes 301 are sleeved on the cylindrical barrel 60 and move synchronously with the cylindrical barrel 60. A second positioning pin 311 is fixed on the load-carrying part 31. A pin hole corresponding to the second positioning pin 311 is arranged on the battery module 7. The load-carrying part 31 is inserted into the pin hole on the battery module 7 through the second positioning pin 311, thereby loading the battery module 7 on the load-carrying part 31 and making the battery module 7 move synchronously with the load-carrying bracket 3. To facilitate pushing the load-carrying bracket 3 to move on the sliding shaft 1, a handle 32 is further arranged on the load-carrying bracket 3. Through the handle 32, the operator can conveniently manually adjust the position of the load-carrying bracket 3 on the sliding shaft 1.

[0060] Of course, the above connection form through the second positioning pin 311 and the battery module 7 is only an example. The load-carrying bracket 3 can also be in other forms, and the connection method between the load-carrying bracket 3 and the battery module 7 is not limited to the above connection. Commonly, the battery module 7 has a double-row battery module and a single-row battery module. There are differences between the load-carrying brackets 3 used for hoisting the double-row battery module and the single-row battery module. When hoisting the double-row battery module, two second positioning pins 311 are arranged on the load-carrying part 31 of the load-carrying bracket 3, and the two second positioning pins 311 are symmetrically distributed on the load-carrying part 31. Since the structure of the single-row battery module is different from that of the double-row battery module, the above load-carrying bracket 3 cannot be used for loading. For this reason, an extension bracket 4 is provided to load the single-row battery module through the extension bracket 4.

[0061] Reference Figures 9 to 12, the extension bracket 4 is provided with a connection hole 40 and a first positioning pin 41, and is connected to the single-row battery module through the first positioning pin 41. A connection fitting is inserted into the connection hole 40 on the extension bracket 4, and the extension bracket 4 is connected to the above-mentioned load-carrying bracket 3 through the connection fitting, so as to save the procedure of replacing the lifting tackle. Specifically, the extension bracket 4 is a flat plate, the first positioning pin 41 is arranged at the lower part of the flat plate, and the thickness of the flat plate on the side away from the first positioning pin 41 becomes thinner to reduce the weight. At the same time, a rotary lock 33 is arranged on the load-carrying bracket 3, and the rotary lock 33 can rotate on the load-carrying bracket 3. When the extension bracket 4 is connected to the load-carrying bracket 3, the extension bracket 4 can be positioned on the load-carrying bracket 3 through the rotary lock 33 to prevent the extension bracket 4 from flipping when hoisting the single-row battery module.

[0062] The structures of the above-mentioned load-carrying bracket 3 and extension bracket 4 are only described by taking the hoisting of double-row battery modules and single-row battery modules as examples. In actual application, the load-carrying bracket 3 and the extension bracket 4 can be integrated or separated, and the loading connection method needs to set corresponding connection structures according to the actual structure of the battery module 7.

[0063] In summary, the lifting tackle includes a sliding shaft 1, a load-bearing member 2 and a load-carrying bracket 3. The load-bearing member 2 and the load-carrying bracket 3 are slidably arranged on the sliding shaft 1. By adjusting the positions of the two load-carrying brackets 3 on the sliding shaft 1, the loading spacing can be changed, which is used to hoist battery modules 7 of different sizes, solves the problem that the lifting tackle needs to be frequently replaced when hoisting battery modules 7 of different sizes at present, and improves the hoisting and moving speed of the battery module 7.

[0064] An embodiment of the present invention further provides a hoisting device. In addition to including the above-mentioned lifting tackle, it also includes a hook and a power source. The hook is hooked in the hoisting hole 20 of the load-bearing member 2, and at the same time the hook is connected to the power source. Here, the power source is selected as a crane, and the hook is connected to the end of the boom of the crane. The load-bearing member 2 is lifted and moved by the crane, and then the battery module 7 is driven to move.

[0065] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A lifting device, characterized in that, Comprising: A sliding shaft (1), and A lifting member (2), the lifting member (2) is slidably arranged on the sliding shaft (1); A load-carrying bracket (3), the load-carrying bracket (3) is connected to the lifting member (2), and the load-carrying bracket (3) moves synchronously with the lifting member (2), and the load-carrying bracket (3) is used for loading hoisted articles.

2. The sling according to claim 1, characterized in that, A positioning ring (10) is arranged on the sliding shaft (1), and the lifting member (2) is positioned by the positioning ring (10).

3. The spreader according to claim 1, characterized in that, A first sliding hole (21) is arranged on the lifting member (2), and the sliding shaft (1) passes through the first sliding hole (21).

4. The spreader according to claim 3, characterized in that, The number of the sliding shafts (1) is two, and the two sliding shafts (1) are arranged in parallel; The lifting member (2) is an arc-shaped beam, the arc-shaped beam includes a beam middle part (22) and beam end parts (23), a hoisting hole (20) is opened in the beam middle part (22), and the first sliding hole (21) is opened in the beam end parts (23); The arc-shaped beam is slidably matched with the two sliding shafts (1) simultaneously through the first sliding holes (21) at its two ends.

5. The spreader according to claim 1, characterized in that, The hoist further includes an extension bracket (4), and the extension bracket (4) is detachably connected to the load-carrying bracket (3).

6. The spreader according to claim 1, characterized in that, The load-carrying bracket (3) includes a sliding part (30) and a load-carrying part (31), the sliding part (30) is connected to the load-carrying part (31), the sliding part (30) is slidably matched with the sliding shaft (1), and the load-carrying part (31) is used for loading hoisted articles.

7. The spreader according to claim 1, wherein The hoist further includes a fixed beam (5), and the sliding shaft (1) is connected to the fixed beam (5).

8. The spreader according to claim 1, characterized in that, The hoist further includes a sliding cylinder (6) for reducing friction, and the load-carrying bracket (3) and the lifting member (2) are both sleeved on the sliding cylinder (6).

9. The spreader according to any one of claims 1 to 8, characterized in that, The load-carrying bracket (3) is connected to the lifting member (2).

10. A hoisting device, characterized in that, Comprising a hook, a power source and the hoist according to claim 9, the hook is connected to the hoist, and the power source drives the hook to move.

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