Hoisting device

Abstract

The utility model provides a hoisting device and relates to the technical field of wind driven generators. The hoisting device is used for hoisting multiple hoisted pieces, the hoisting device comprises a fixing part, a vertical rod and a rotating part, the fixing part can be detachably connected with one of the hoisted pieces, the lower end of the vertical rod is connected with the fixing part, the rotating part is connected to the upper end of the vertical rod, and the rotating part can rotate with the axis of the vertical rod as the center; a hoisting hole is formed in the rotating part, and the position of the hoisting hole in the rotating part is set as follows: the hoisting hole can be located above the other adjacent hoisted piece through rotation of the rotating part, and the hoisting hole is used for mounting hoisting equipment, so that the other hoisted piece below can be hoisted through the hoisting equipment; and an operator rotates the rotating part to rotate the other hoisted part out of the narrow space, so that the hoisted part in the narrow space is disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine generators, in particular to a hoisting device. Background Art

[0002] Some devices inside the wind turbine in the prior art are set in a relatively small space. For example, the yaw drive device in the wind turbine is usually set under the main shaft and the bearing seat. The space under the shaft and the bearing seat is small. These hoisted parts are heavy and difficult to maintain and replace by manpower. In order to move and replace these hoisted parts, auxiliary hoisting devices are usually used. The existing hoisting devices are usually large in size and inconvenient to install. The operators are at great risk when using them. It is not convenient to hoist the hoisted parts. In addition, the size of the hoisting device is fixed and it is difficult to adapt to hoisted parts of different specifications. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a hoisting device in order to overcome the defect in the prior art that the hoisted parts of the wind turbine generator are arranged in a narrow space and are inconvenient to hoist.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] The utility model provides a hoisting device, which is used for hoisting a hoisted object, wherein the number of the hoisted objects is multiple, and the hoisting device comprises:

[0006] A fixing portion, the fixing portion being detachably connected to one of the hoisted parts;

[0007] A vertical pole, the lower end of which is connected to the fixing portion;

[0008] A rotating part, the rotating part is connected to the upper end of the vertical pole, the rotating part can rotate around the axis of the vertical pole, and has a lifting hole. The position of the lifting hole on the rotating part is set to: the lifting hole can be located above another adjacent lifted part through the rotation of the rotating part, and the lifting hole is used to install lifting equipment.

[0009] In this solution, by providing a vertical rod connected to the fixing part, the fixing part is detachably connected to one of the suspended parts, so that the vertical rod can be fixed on another suspended part different from the suspended part to be suspended. The upper end of the vertical rod is connected with a rotating part for setting a suspension hole, and the suspension hole can be formed above the suspended part to be suspended, and the suspension hole is used to install a lifting device, so that the suspended part to be suspended can be lifted by the lifting device, and then the operator can rotate the lifted suspended part out of the narrow space by rotating the rotating part, so as to realize the removal of the suspended part in the narrow space below the main shaft and the bearing seat. Similarly, the suspended part outside the narrow space can also be rotated into the narrow space by the lifting device to realize the installation of the suspended part, making the removal and installation of the suspended part in the narrow space below the main shaft and the bearing seat more convenient.

[0010] The hoisting device uses another hoisted part different from the hoisted part to be hoisted as a connection object to form a hoisting hole in a narrow space for the hoisting equipment to be connected, so as to lift or lower the hoisted part to be hoisted.

[0011] Furthermore, the hoisting hole is specifically formed on the rotating part, and the displacement of the hoisted part is achieved by the rotation of the rotating part relative to the vertical rod, thereby meeting the demand for disassembling and assembling the hoisted part in a narrow space.

[0012] Preferably, the rotating part includes a rotating arm and an extending part, the rotating arm is sleeved on the outside of the vertical pole, the rotating arm can rotate along the circumference of the vertical pole, one end of the extending part is fixed to the rotating arm, and the other end of the extending part is provided with a lifting hole for connecting the lifting equipment.

[0013] In the present scheme, a swivel arm is provided which is sleeved on the outside of the vertical pole so that the rotating part can rotate circumferentially relative to the vertical pole, and an extension part connected to the swivel arm is provided, and a lifting hole for connecting the lifting equipment is provided at the other end of the extension part, so that the lifting hole can be located above another adjacent hoisted part through rotation, so as to facilitate the hoisting of another adjacent hoisted part.

[0014] Preferably, a rolling bearing is provided at the upper end of the rotating arm, and a pressure bearing is provided at the lower end of the rotating arm.

[0015] In this solution, rolling bearings and pressure bearings are respectively arranged at the upper and lower ends of the rotating arm to reduce the friction of the rotating arm during the rotation process, making it easier for operators to rotate the rotating part.

[0016] Preferably, the hoisting holes include a first hoisting hole and a second hoisting hole, the first hoisting hole is used to connect to the lower area of ​​the hoisted component, and the second hoisting hole is used to connect to the upper area of ​​the hoisted component.

[0017] In this solution, the first lifting hole and the second lifting hole are used to lift the lower area and the upper area of ​​the lifted component respectively. By setting multiple lifting points on different parts of the lifted component, the lifting of the lifted component is made more stable.

[0018] Preferably, the number of the fixing parts is at least two, which are distributed along the length direction of the vertical pole and are arranged at the lower end of the vertical pole, and at least two of the fixing parts are detachably connected to the suspended member respectively.

[0019] In the present solution, by providing a plurality of fixing parts connected to the lower end of the vertical pole along the length direction of the vertical pole, the lifting device can fix a plurality of positions of the lifted part, so that the fixation of the fixing parts and the vertical pole is more stable, and the torsional resistance of the lifting device is improved. The lifting device is more stable and safer during lifting.

[0020] Preferably, at least one of the fixing parts is detachably connected to the upper end of the suspended member, and at least one of the fixing parts is detachably connected to the lower end of the suspended member.

[0021] In this solution, the fixing part is respectively connected to the upper end and the lower end of the hoisted part, and the hoisting device is respectively fixed from both ends of the hoisted part, so that the fixation of the hoisted part can be more stable, and the torsional resistance of the hoisting device is improved. The hoisting device is more stable and safer during hoisting.

[0022] Preferably, the fixing portion comprises:

[0023] A first connecting portion, the first connecting portion is connected to the vertical pole, and the first connecting portion has a groove, and the groove is used to accommodate and abut against the outer peripheral side of the suspended component;

[0024] A second connecting part, the second connecting part is detachably connected to the first connecting part, and is used to close the groove to form a space that can be used to accommodate the suspended part; the spacing between the second connecting part and the first connecting part is adjustable to adjust the size of the space; the fixing part is configured to: clamp the suspended part between the second connecting part and the first connecting part.

[0025] In the present scheme, a groove is provided on the first connecting part, and the first connecting part and the second connecting part are detachably connected. The first connecting part and the second connecting part cooperate to close the groove to form a space that can be used to accommodate the suspended part, and the size of the space for accommodating the suspended part is adjusted by adjusting the distance between the first connecting part and the second connecting part, so that the outer peripheral side of the suspended part can abut against the suspended part, so that the suspended part is clamped between the first connecting part and the second connecting part, thereby achieving the effect of fixing the suspended part to the fixing part.

[0026] Preferably, a flexible adjustment pad is provided on the inner side wall of the groove;

[0027] And / or, a flexible adjustment pad is provided on a surface of the second connecting portion facing the groove.

[0028] In the present solution, a flexible adjustment pad is provided on the inner wall of the groove and the surface of the second connecting part facing the groove, so that the size of the portion where the first connecting part and the second connecting part clamp the suspended part can be adjusted to accommodate suspended parts of different specifications. The use of flexible materials can also adjust slight errors in the clamping size, so that the first connecting part and the second connecting part clamp the suspended part more firmly.

[0029] Preferably, the first connecting part and the second connecting part are connected by a bolt-thread method, and an adjustable gap is provided between the connecting positions of the first connecting part and the second connecting part, and the size of the gap is adjusted by rotating the bolt.

[0030] In this solution, there is an adjustable gap between the connection positions of the first connection part and the second connection part. By rotating the bolt to adjust the size of the gap, the inner wall surface of the groove can be more closely matched with the outer surface of the hoisted part, and the first connection part and the second connection part can clamp the hoisted part more firmly. When hoisting hoisted parts of different sizes, the groove can be adapted to the hoisted parts of different sizes by adjusting the size of the gap, so that the hoisting device has a wider range of applications.

[0031] Preferably, the first connecting portion is a multi-layer structure arranged at intervals along the length direction of the vertical pole.

[0032] In this solution, by setting the first connecting part as a multi-layer structure, the structure of the first connecting part can be made more stable, the overall structural strength of the lifting device can be made greater, the lifting device can lift heavier lift parts, and the application range is wider.

[0033] The positive and progressive effects of the utility model are:

[0034] The utility model provides a hoisting device, which is provided with a vertical pole connected to a fixing part, and the fixing part is detachably connected to one of the hoisted parts, so that the vertical pole can be fixed to one of the hoisted parts. The upper end of the vertical pole is connected to a rotating part, and a hoisting hole is provided on the rotating part. The hoisting hole can be located above another adjacent hoisted part through the rotation of the rotating part. The hoisting hole is used to install a hoisting device, so that the other hoisted part below can be hoisted by the hoisting device, and then the operator can rotate the rotating part to rotate the other hoisted part out of the narrow space, so as to realize the disassembly of the hoisted part in the narrow space below the main shaft and the bearing seat. Similarly, the hoisted part outside the narrow space can also be rotated into the narrow space by the hoisting device to realize the installation of the hoisted part, so that the disassembly and installation of the hoisted part in the narrow space below the main shaft and the bearing seat is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the hoisting device according to Example 1 of the utility model applied to the hoisted object.

[0036] Figure 2 It is a side view of the lifting device according to Example 1 of the utility model.

[0037] Figure 3 It is a top view of the lifting device according to Example 1 of the utility model.

[0038] Figure 4 It is a schematic diagram of the three-dimensional structure of the lifting device according to Example 2 of the utility model.

[0039] Figure 5 It is a partial cross-sectional structural schematic diagram of the lifting device according to Example 2 of the utility model.

[0040] Description of reference numerals:

[0041] Lifting device 100

[0042] Fixing part 200

[0043] First connection portion 210

[0044] Groove 211

[0045] The second connection portion 220

[0046] Adjustment pad 230

[0047] Gap 240

[0048] Pole 300

[0049] Rotating unit 400

[0050] Lifting hole 410

[0051] The first lifting hole 411

[0052] Second lifting hole 412

[0053] Rotating arm 420

[0054] Extension 430

[0055] Rolling bearing 440

[0056] Pressure bearing 450

[0057] Hoisted parts 500

[0058] Upper area 510

[0059] Lower area 520 DETAILED DESCRIPTION

[0060] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the following embodiments.

[0061] Example 1

[0062] like Figure 1-Figure 3 As shown, this embodiment provides a hoisting device 100, which is used to hoist a hoisted part 500, the number of which is multiple, and the hoisting device 100 includes a fixing part 200, a vertical pole 300 and a rotating part 400. The fixing part 200 is detachably connected to one of the hoisted parts 500, the vertical pole 300 extends in the vertical direction, the lower end of the vertical pole 300 is connected to the fixing part 200, the rotating part 400 is connected to the upper end of the vertical pole 300, the rotating part 400 can rotate around the axis of the vertical pole 300, and a hoisting hole 410 is provided on the rotating part 400. The position of the hoisting hole 410 on the rotating part 400 is set to: the hoisting hole 410 can be located above another adjacent hoisted part 500 by rotating the rotating part 400, and the hoisting hole 410 is used to install a hoisting device (not shown in the figure).

[0063] By providing a vertical rod 300 extending in the vertical direction and connected to the fixing part 200, the fixing part 200 is detachably connected to one of the suspended parts 500, so that the vertical rod 300 can be fixed to one of the suspended parts 500. The upper end of the vertical rod 300 is connected to the rotating part 400, and the rotating part 400 is provided with a hanging hole 410. The hanging hole 410 can be located above another adjacent suspended part 500 through the rotation of the rotating part 400. The hanging hole 410 is used to install a lifting device, so that it can be connected to another suspended part 500 below through the lifting device, and the suspended part 500 is lifted with the hanging hole 410 as a fulcrum. Then, the operator rotates the rotating part 400 to rotate the other suspended part 500 out of the narrow space, thereby realizing the removal of the suspended part 500 in the narrow space below the main shaft and the bearing seat. Similarly, the hoisting device 100 can be used to rotate the hoisted component 500 outside the narrow space into the narrow space to achieve installation of the hoisted component 500, making it more convenient to disassemble and install the hoisted component 500 in the narrow space below the main shaft and the bearing seat.

[0064] That is to say, the hoisting device 100 provided in this embodiment lifts one of the hoisted parts 500 ( Figure 1 The hoisted member 500 on the left side of the middle is used as the connection object, so as to form a hoisting hole 410 in a narrow space as a fulcrum for the hoisting equipment to connect, so as to realize the connection of another hoisted member 500 ( Figure 1 The hoisted member 500 on the middle right side is lifted or lowered.

[0065] Furthermore, the hoisting hole 410 is specifically formed on the rotating part 400, and the hoisted component 500 is translated by the rotation of the rotating part 400 relative to the vertical rod 300, thereby meeting the need of disassembling and assembling the hoisted component 500 in a narrow space.

[0066] like Figure 1 As shown, before the lifting equipment is lifted, the vertical pole 300 is fixed to one of the lifted parts 500 through the fixing part 200. At this time, the rotating part 400 rotates to above the other lifted part 500 to ensure that the lifting hole 410 is located above the other lifted part 500. There is a certain angle between the fixing part 200 and the rotating part 400 in the horizontal plane so that the rotating part 400 can rotate relative to the fixing part 200. The size of the angle is determined according to the position of the specific lifted part 500.

[0067] In addition, the lifting equipment used can be any equipment in the prior art that can achieve the lifting purpose. For example, in the present embodiment, the lifting equipment is a manual hoist. By hanging the upper end of the manual hoist on the lifting hole 410 and connecting the lower end to the hoisted part 500, the purpose of lifting or lowering the hoisted part 500 can be achieved.

[0068] In this embodiment, the suspended component 500 is a yaw drive device of a wind turbine. In other embodiments, the suspended component 500 may also be other devices disposed in a narrow space.

[0069] The rotating part 400 includes a rotating arm 420 and an extending part 430. The rotating arm 420 is sleeved on the outside of the vertical pole 300. The rotating arm 420 can rotate along the circumference of the vertical pole 300. One end of the extending part 430 is fixed to the rotating arm 420, and the other end of the extending part 430 is provided with a hoisting hole 410 for connecting a hoisting device. By providing the rotating arm 420 sleeved on the outside of the vertical pole 300, the rotating part 400 can rotate circumferentially relative to the vertical pole 300, and providing the extending part 430 connected to the rotating arm 420, and providing the hoisting hole 410 for connecting a hoisting device at the other end of the extending part 430, the hoisting hole 410 can be located above another adjacent hoisted part 500 through rotation, so as to facilitate hoisting of another adjacent hoisted part 500.

[0070] like Figure 3 As shown, the hoisting hole 410 includes a first hoisting hole 411 and a second hoisting hole 412, wherein the first hoisting hole 411 is used to connect the lower region 520 of the hoisted part 500, and the second hoisting hole 412 is used to connect the upper region 510 of the hoisted part 500. The first hoisting hole 411 and the second hoisting hole 412 hoist the lower region 520 and the upper region 510 of the hoisted part 500, respectively, and by setting multiple hoisting points at different parts of the hoisted part 500, the hoisting of the hoisted part 500 is made more stable.

[0071] In this embodiment, the hoisted component 500 is a yaw drive device, which includes a motor 510 located in the upper area and a motor located in the lower area 520. The first hoisting hole 411 is used to connect the gear box, and the second hoisting hole 412 is used to connect the motor. In other embodiments, those skilled in the art can select the hoisting positions of the first hoisting hole 411 and the second hoisting hole 412 according to the specific hoisted component 500.

[0072] The number of the fixing parts 200 is at least two, which are distributed along the length direction of the vertical pole 300 and are arranged at the lower end of the vertical pole 300. At least two of the fixing parts 200 are detachably connected to the suspended member 500. By providing a plurality of fixing parts 200 connected to the lower end of the vertical pole 300 along the length direction of the vertical pole 300, the hoisting device 100 can fix the suspended member 500 at multiple positions, making the fixing of the fixing parts 200 and the vertical pole 300 more stable, improving the torsion resistance of the hoisting device 100, and making the hoisting device 100 more stable and safer during hoisting. In this embodiment, the number of the fixing parts 200 is two. In other embodiments, the number of the fixing parts 200 may also be three or more.

[0073] At least one fixing part 200 is detachably connected to the upper end of the suspended part 500, and at least one fixing part 200 is detachably connected to the lower end of the suspended part 500. The fixing parts 200 are respectively connected to the upper end and the lower end of the suspended part 500, and the lifting device 100 is respectively fixed from both ends of the suspended part 500, so that the fixation of the suspended part 500 can be more stable, and the torsion resistance of the lifting device 100 is improved. The lifting device 100 is more stable and safer during lifting. In this embodiment, a fixing part 200 is respectively provided at the upper end and the lower end of the suspended part 500. In other embodiments, those skilled in the art can select the appropriate number and setting position of the fixing parts 200 according to actual needs.

[0074] The fixing part 200 includes a first connecting part 210 and a second connecting part 220. The first connecting part 210 is connected to the vertical pole 300. The first connecting part 210 has a groove 211. The groove 211 is used to accommodate and abut the outer peripheral side of the suspended part 500. The second connecting part 220 is detachably connected to the first connecting part 210 and is used to close the groove 211 to form a space that can be used to accommodate the suspended part 500. The spacing between the second connecting part 220 and the first connecting part 210 is adjustable to adjust the size of the space; the fixing part 200 is configured to: the suspended part 500 is sandwiched between the second connecting part 220 and the first connecting part 210.

[0075] A groove 211 is provided on the first connecting part 210, and the first connecting part 210 and the second connecting part 220 are detachably connected. The first connecting part 210 and the second connecting part 220 cooperate to close the groove 211 to form a space for accommodating the suspended part 500, and the size of the space for accommodating the suspended part 500 is adjusted by adjusting the distance between the first connecting part 210 and the second connecting part 220, so that the outer peripheral side of the suspended part 500 can abut against the suspended part 500, so that the suspended part is clamped between the first connecting part 210 and the second connecting part 220, thereby achieving the effect of fixing the suspended part 500 to the fixing part 200.

[0076] The fixing portion 200 in this embodiment is a clamp structure, and the first connection portion 210 and the second connection portion 220 are both semicircular clamp bodies, and a space for accommodating the suspended component 500 is formed between the two clamp bodies. The outer peripheral side of the suspended component 500 abuts against the inner side surfaces of the two clamp bodies, and one end of the first connection portion 210 and the second connection portion 220 are connected to the vertical pole 300, and the other ends of the first connection portion 210 and the second connection portion 220 are detachably connected by bolts and nuts, and the distance between the first connection portion 210 and the second connection portion 220 can be adjusted by bolts and nuts.

[0077] In this embodiment, the first connection part 210 and the second connection part 220 are connected by a bolt-thread method, and an adjustable gap 240 is provided between the connection positions of the first connection part 210 and the second connection part 220. The size of the gap 240 is adjusted by rotating the bolt.

[0078] In this solution, there is an adjustable gap 240 between the connection positions of the first connection part 210 and the second connection part 220. By rotating the bolt to adjust the size of the gap 240, the inner wall surface of the groove 211 can be more closely fitted with the outer surface of the suspended part 500, and the first connection part 210 and the second connection part 220 can clamp the suspended part 500 more firmly. When suspending suspended parts 500 of different sizes, the size of the gap 240 can be adjusted to make the groove 211 adapt to the suspended parts 500 of different sizes, so that the application range of the suspending device 100 is wider.

[0079] In other embodiments, other connection modes of the first connection portion 210 and the second connection portion 220 that are deemed appropriate by those skilled in the art may also be selected.

[0080] Example 2

[0081] The structure of this embodiment is basically the same as that of Embodiment 1, and the same structure will not be described in detail. The difference is that:

[0082] like Figure 3-Figure 5 As shown, the fixing structure of this embodiment is different from that of Embodiment 1. In this embodiment, the first connecting portion 210 is a horizontally arranged plate-like structure, and a groove 211 is provided at the end of the first connecting portion 210 away from the vertical pole 300. The second connecting portion 220 is a vertical baffle provided on the side of the groove 211 and a protrusion provided on the side of the vertical baffle facing the groove 211, and the protrusion is used to cooperate with the groove 211 to fix the suspended component.

[0083] The inner wall of the groove 211 and the surface of the second connecting part 220 facing the groove 211 are provided with a flexible adjustment pad 230, so that the size of the part where the first connecting part 210 and the second connecting part 220 clamp the suspended part can be adjusted to accommodate suspended parts of different specifications. The use of flexible materials can also adjust slight errors in the clamping size, so that the first connecting part 210 and the second connecting part 220 clamp the suspended part more firmly.

[0084] The number of the adjustment pads 230 can be one or more, and by stacking multiple adjustment pads 230, it can adapt to the hoisted parts of different sizes. The adjustment pads 230 can be connected by gluing, or other connection methods deemed appropriate by those skilled in the art. The operator can modify the thickness or number of the adjustment pads 230 to meet the required compression diameter of the installation position.

[0085] In this embodiment, the first connection part 210 is a multi-layer structure arranged at intervals along the length direction of the vertical pole 300, so that the structure of the first connection part 210 can be more stable, the overall structural strength of the lifting device 100 can be greater, and the lifting device 100 can lift heavier objects to be lifted, and the application range is wider. In this embodiment, the first connection part 210 is a double-layer structure, and in other embodiments, it can also be other multi-layer structures with three or more layers.

[0086] A rolling bearing 440 is disposed at the upper end of the rotating arm 420 , and a pressure bearing 450 is disposed at the lower end of the rotating arm 420 , so as to reduce the friction of the rotating arm 420 during the rotation process, making it easier for operators to rotate the rotating part 400 .

[0087] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship of the device or component in normal use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation at any time, and therefore cannot be understood as a limitation on the present invention in this regard.

[0088] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A hoisting device, used for hoisting a hoisted object, wherein the number of the hoisted objects is multiple, characterized in that: The lifting device comprises: A fixing part, which can be detachably connected to the hoisted component; A vertical pole, the lower end of which is connected to the fixing portion; A rotating part, the rotating part is connected to the upper end of the vertical pole, the rotating part can rotate around the axis of the vertical pole, and has a lifting hole. The position of the lifting hole on the rotating part is set to: the lifting hole can be located above another adjacent lifted part through the rotation of the rotating part, and the lifting hole is used to install lifting equipment.

2. The lifting device according to claim 1, characterized in that: The rotating part includes a rotating arm and an extending part. The rotating arm is sleeved on the outer side of the vertical pole. The rotating arm can rotate along the circumference of the vertical pole. One end of the extending part is fixed to the rotating arm, and the other end of the extending part is provided with a lifting hole for connecting the lifting equipment.

3. The lifting device according to claim 2, characterized in that: The upper end of the rotating arm is provided with a rolling bearing, and the lower end of the rotating arm is provided with a pressure bearing.

4. The lifting device according to claim 1, characterized in that: The hoisting holes include a first hoisting hole and a second hoisting hole, the first hoisting hole is used to connect to the lower area of ​​the hoisted component, and the second hoisting hole is used to connect to the upper area of ​​the hoisted component.

5. The lifting device according to claim 1, characterized in that: The number of the fixing parts is at least two, which are distributed along the length direction of the vertical pole and are arranged at the lower end of the vertical pole. At least two of the fixing parts are detachably connected to the suspended member.

6. The lifting device according to claim 5, characterized in that: At least one of the fixing parts is detachably connected to the upper end of the suspended member, and at least one of the fixing parts is detachably connected to the lower end of the suspended member.

7. The lifting device according to any one of claims 1 to 6, characterized in that: The fixing portion comprises: A first connecting portion, the first connecting portion is connected to the vertical pole, and the first connecting portion has a groove, and the groove is used to accommodate and abut against the outer peripheral side of the suspended component; A second connecting part, the second connecting part is detachably connected to the first connecting part, and is used to close the groove to form a space that can be used to accommodate the suspended part; the spacing between the second connecting part and the first connecting part is adjustable to adjust the size of the space; the fixing part is configured to: clamp the suspended part between the second connecting part and the first connecting part.

8. The lifting device according to claim 7, characterized in that: A flexible adjustment pad is provided on the inner side wall of the groove; And / or, a flexible adjustment pad is provided on a surface of the second connecting portion facing the groove.

9. The lifting device according to claim 7, characterized in that: The first connection part and the second connection part are connected by a bolt-thread method. An adjustable gap is provided between the connection positions of the first connection part and the second connection part. The size of the gap is adjusted by rotating the bolt.

10. The lifting device according to claim 7, characterized in that: The first connecting portion is a multi-layer structure arranged at intervals along the length direction of the vertical rod.

Images