Hoisting tackle

Abstract

The invention provides a hoisting tackle which comprises a protective plate set, a lifting hook and a pulley, the pulley is rotatably arranged in the protective plate set, one end of the lifting hook extends into the protective plate set and is rotatably connected with the protective plate set, and a rope hanging area is formed in the area between the connecting position of the lifting hook and the protective plate set and the pulley. And one side of the protection plate group and the solid structure corresponding to the rope hanging area are detachably arranged. According to the scheme, the structure that the opening of the rope hanging area is opened and closed in a rotating mode in the prior art is replaced with the structure that the opening of the rope hanging area is opened and closed in a detachable mode, and the situations that the structure of the opening of the rope hanging area is opened and closed in a rotating mode, the rotating opening and closing difficulty is correspondingly increased along with increasing of the specification of the hoisting tackle, rope hanging efficiency is affected, and potential safety hazards exist are avoided; and meanwhile, a rotating opening and closing distance and a distance required by safe rope hanging of an operator do not need to be reserved on the opening side of the rope hanging area, rope hanging can be carried out in a working environment with a small space, and the applicability of the hoisting tackle is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting pulleys, and in particular to a lifting pulley. Background Art

[0002] At present, open-type lifting pulleys are often used underground in coal mines. One side of the open-type lifting pulley is divided into two sections and the two sections are hinged at the section. There is a rope hanging area between the hook and the pulley of the lifting pulley. One section corresponds to the rope hanging area of ​​the open-type lifting pulley and can be rotated to open and close the opening of the rope hanging area (the rotation angle is usually 90°). When this section rotates to open the opening of the rope hanging area, the operator hangs the rope in the rope hanging area.

[0003] However, as the specifications of the lifting pulley increase, its own weight also increases significantly, resulting in a corresponding increase in the difficulty of rotating opening and closing, which affects the efficiency of hanging ropes and poses a safety hazard. On the other hand, this rotating opening and closing method of hanging ropes requires a sufficient distance to be avoided in the opening and closing direction of the lifting pulley so that the operator can rotate to open the opening of the hanging rope area and hang the rope, which makes it difficult to hang ropes in a working environment with a small space. Summary of the invention

[0004] The invention provides a lifting tackle to improve the rope hanging efficiency and applicability of the lifting tackle.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a lifting pulley, which includes a guard plate group, a hook and a pulley. The pulley is rotatably arranged in the guard plate group, one end of the hook extends into the guard plate group and is rotatably connected to the guard plate group, and the area between the connection position of the hook and the guard plate group and the pulley forms a hanging rope area, and a physical structure corresponding to the hanging rope area on one side of the guard plate group is detachably arranged.

[0006] Furthermore, the guard plate group includes two oppositely arranged guard plates, one of which includes a first plate segment, a second plate segment and a movable plate segment, one end of the first plate segment facing away from the second plate segment is connected to one end of the other guard plate through a hanging shaft, one end of the second plate segment facing away from the first plate segment is connected to the other end of the other guard plate through a connecting shaft, one end of the hook is rotatably connected to the hanging shaft, and the movable plate segment is at least partially opposite to the hanging rope area and is detachably connected to the first plate segment and the second plate segment respectively.

[0007] Furthermore, a first transfer structure is provided on the outer side of one end of the first plate segment and the second plate segment that are close to each other, and a second transfer structure is provided at both ends of the movable plate segment respectively, the first transfer structure on the second plate segment and the corresponding second transfer structure on the movable plate segment are detachably connected via fasteners, and the first transfer structure on the first plate segment and the corresponding second transfer structure on the movable plate segment are detachably connected via fasteners.

[0008] Furthermore, the first adapter structure includes two adapter seats arranged at intervals, and a clamping area is formed between the two adapter seats. The second adapter structure includes an adapter protrusion, and the fastener is an adapter shaft. The adapter protrusion and the adapter seat respectively have a first through hole and a second through hole for passing the adapter shaft. The adapter protrusion is at least partially arranged in the clamping area. When the first through hole and the second through hole are facing each other, the adapter protrusion and the two adapter seats are pluggably connected through the adapter shaft.

[0009] Furthermore, the clamping areas on the first plate segment and the second plate segment penetrate the first plate segment and the second plate segment along the thickness direction of the guard plate, and the movable plate segment is at least partially located between the first plate segment and the second plate segment.

[0010] Further, the shape of the movable plate segment is adapted to the shape of the gap between the first plate segment and the second plate segment.

[0011] Furthermore, the guard plate group includes two relatively arranged guard plates, one of which includes a first plate segment and a second plate segment, one end of the first plate segment facing away from the second plate segment is connected to one end of the other guard plate through a suspension shaft, one end of the second plate segment facing away from the first plate segment is connected to the other end of the other guard plate through a connecting shaft, one end of the hook is rotatably connected to the suspension shaft, one side of the first plate segment facing the second plate segment is at least partially opposite to the hanging rope area, the first plate segment is detachably rotatably connected to one end of the suspension shaft, the first plate segment is detachably connected to the second plate segment, and when the second plate segment is separated from the first plate segment and the first plate segment is not separated from the suspension shaft, the first plate segment can vertically swing around the connection position of its suspension shaft.

[0012] Furthermore, a first transition structure is arranged on the outer side of one end of the second plate segment close to the first plate segment, and a second transition structure is correspondingly arranged on one end of the first plate segment close to the second plate segment, and the first transition structure is detachably connected to the second transition structure via fasteners.

[0013] Furthermore, the first plate segment is provided with a corresponding mating hole, the radial dimension of the mating hole is larger than the hanging shaft, the end of the hanging shaft has an anti-slip section, the first plate segment is detachably mounted on the hanging shaft through the mating hole, and the anti-slip section cooperates with the stopper on the outer surface of the first plate segment.

[0014] Furthermore, the outer circumference of the pulley has a rope groove for hanging the rope.

[0015] By applying the technical solution of the present invention, a lifting pulley is provided, which includes a guard plate group, a hook and a pulley. The pulley is rotatably arranged in the guard plate group, one end of the hook extends into the guard plate group and is rotatably connected to the guard plate group, and the area between the connection position of the hook and the guard plate group and the pulley forms a hanging rope area, and a physical structure corresponding to the hanging rope area is detachably arranged on one side of the guard plate group.

[0016] By adopting this solution, the structure of the opening of the hanging rope area is disassembled to replace the structure of the rotating opening and closing of the hanging rope area in the prior art, thereby avoiding the situation that as the specifications of the lifting pulley increase, the difficulty of rotating opening and closing of the hanging rope area opening will increase accordingly, affecting the hanging rope efficiency and posing a safety hazard. This is beneficial to improving the hanging rope efficiency and reducing safety hazards. At the same time, there is no need to reserve a rotating opening and closing distance and a distance required for the operator to safely hang the rope on the opening side of the hanging rope area. Rope hanging can be performed in a small working environment, which is beneficial to improving the applicability of the lifting pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of a lifting tackle provided by Embodiment 1 of the present invention is shown;

[0019] Figure 2 Shows Figure 1 A structural diagram of the lifting tackle in the rope hanging state;

[0020] Figure 3 Shows Figure 1 A half-section view of

[0021] Figure 4 Shows Figure 3 Half-section view when in the lanyard state;

[0022] Figure 5 A schematic structural diagram of a lifting tackle provided by a second embodiment of the present invention is shown;

[0023] Figure 6 Shows Figure 5 A structural diagram of the lifting tackle in the rope hanging state;

[0024] Figure 7 Shows Figure 5 A half-section view of

[0025] Figure 8 Shows Figure 7 A half-section view showing the first plate segment and the second plate segment being disassembled and the first plate segment being swung;

[0026] Fig. 9 Shows Figure 7 Half-section view when in lanyard state.

[0027] The above drawings include the following reference numerals:

[0028] 101, hanging rope area; 11, guard plate; 111, first plate section; 1111, matching hole; 112, second plate section; 113, movable plate section;

[0029] 20. Hook;

[0030] 30. Pulley; 301. Rope slot;

[0031] 41. Suspension shaft; 411. Anti-slip section; 42. Connecting shaft; 43. Rotating shaft;

[0032] 501, mounting area; 51, adapter seat; 511, first through hole; 52, adapter protrusion; 521, second through hole; 53, adapter shaft. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figures 1 to 9 As shown, an embodiment of the present invention provides a lifting pulley, which includes a guard plate group, a hook 20 and a pulley 30. The pulley 30 is rotatably arranged in the guard plate group. One end of the hook 20 extends into the guard plate group and is rotatably connected to the guard plate group. The area between the connection position of the hook 20 and the guard plate group and the pulley 30 forms a hanging rope area 101. The physical structure corresponding to the hanging rope area 101 on one side of the guard plate group is detachably arranged.

[0035] In the present embodiment, the structure of the opening of the hanging rope area 101 is replaced by the structure of the rotating opening and closing opening of the hanging rope area 101 in the prior art through disassembling the structure of the opening of the hanging rope area 101, thereby avoiding the situation that as the specifications of the lifting pulley increase, the difficulty of rotational opening and closing will also increase accordingly, affecting the hanging rope efficiency and posing a safety hazard. This is beneficial to improving the hanging rope efficiency and reducing the safety hazard. At the same time, there is no need to reserve the rotation opening and closing distance and the distance required for the operator to safely hang the rope on the opening side of the hanging rope area 101. Rope hanging can be performed in a small working environment, which is beneficial to improving the applicability of the lifting pulley.

[0036] It is understandable that the lifting block further includes a rotating shaft 43, and the pulley 30 is rotatably arranged on the guard plate assembly via the rotating shaft 43. Furthermore, when the difficulty of rotating and opening the rotary opening and closing type lifting block increases due to the increase in the deadweight of the lifting block, the rotating opening and closing requires the cooperation of multiple people and has a high labor intensity. By replacing the structure of rotating and closing the opening of the hanging rope area 101 in the prior art with the structure of disassembling the opening of the hanging rope area 101, it is also beneficial to reduce the number of operators, reduce labor costs and labor intensity.

[0037] Specifically, the outer periphery of the pulley 30 has a rope groove 301 for hanging ropes, which is convenient for limiting the hanging of the ropes and preventing the hanging ropes on the outer periphery from moving or even separating from the pulley 30 during the rotation of the pulley 30, thereby ensuring the reliability and stability of the lifting pulley.

[0038] In such Figures 1 to 4 In the illustrated embodiment 1, the guard plate group includes two oppositely arranged guard plates 11, wherein one of the guard plates 11 includes a first plate segment 111, a second plate segment 112 and a movable plate segment 113, one end of the first plate segment 111 facing away from the second plate segment 112 is connected to one end of the other guard plate 11 via a suspension shaft 41, one end of the second plate segment 112 facing away from the first plate segment 111 is connected to the other end of the other guard plate 11 via a connecting shaft 42, one end of the hook 20 is rotatably connected to the suspension shaft 41, and the movable plate segment 113 is at least partially opposite to the hanging rope area 101 and is detachably connected to the first plate segment 111 and the second plate segment 112, respectively.

[0039] In this way, the two-stage guard plate of the rotating opening and closing lifting pulley is changed into a three-stage guard plate. When the operator needs to hang the rope, he only needs to remove the movable plate section 113 in the middle, which is convenient for operation.

[0040] Specifically, a first transfer structure is provided on the outer side of one end of the first plate segment 111 and the second plate segment 112 which are close to each other, and a second transfer structure is provided at both ends of the movable plate segment 113 respectively, the first transfer structure on the second plate segment 112 and the corresponding second transfer structure on the movable plate segment 113 are detachably connected via fasteners, and the first transfer structure on the first plate segment 111 and the corresponding second transfer structure on the movable plate segment 113 are detachably connected via fasteners.

[0041] With this arrangement, the transfer between the movable panel segment 113 and the first panel segment 111 or the second panel segment 112 is achieved through the first transfer structure and the second transfer structure, thereby avoiding the situation where when the movable panel segment 113 is directly connected to the first panel segment 111 or the second panel segment 112, the force on the connection point may easily cause damage to the movable panel segment 113, the first panel segment 111 and the second panel segment 112, which is beneficial to ensuring the service life of the movable panel segment 113, the first panel segment 111 and the second panel segment 112. In addition, with this arrangement, a suitable transfer structure, transfer area, transfer length, etc. can be adaptively selected according to actual conditions, thereby improving the reliability and stability of the transfer between the movable panel segment 113 and the first panel segment 111 or the second panel segment 112.

[0042] like Figures 1 to 4 As shown, the first adapter structure includes two adapter seats 51 arranged at intervals, and a clamping area 501 is formed between the two adapter seats 51. The second adapter structure includes a adapter protrusion 52. The fastener is an adapter shaft 53. The adapter protrusion 52 and the adapter seat 51 respectively have a first penetration hole 511 and a second penetration hole 521 for penetrating the adapter shaft 53. The adapter protrusion 52 is at least partially arranged in the clamping area 501. When the first penetration hole 511 and the second penetration hole 521 are opposite to each other, the adapter protrusion 52 and the two adapter seats 51 are pluggably connected through the adapter shaft 53.

[0043] Such an arrangement realizes the plugging and unplugging of the movable plate segment 113, improves the convenience of disassembly and assembly, and the limiting cooperation and plug-in connection of two adapter seats 51 corresponding to one adapter protrusion 52 are beneficial to increase the transfer length and transfer area of ​​the movable plate segment 113, thereby helping to improve the stability of the transfer of the movable plate segment 113.

[0044] The assembly and disassembly of the movable plate segment 113 and the first plate segment 111 and the assembly and disassembly of the movable plate segment 113 and the second plate segment 112 can be performed simultaneously or separately. Figure 4 The figure shows a half-section view of the lifting tackle of the first embodiment in the rope hanging state, at which time the movable plate segment 113 is completely removed from the first plate segment 111 and the second plate segment 112 .

[0045] Preferably, the clamping area 501 on the first plate segment 111 and the second plate segment 112 penetrates the first plate segment 111 and the second plate segment 112 along the thickness direction of the guard plate 11 , and the movable plate segment 113 is at least partially located between the first plate segment 111 and the second plate segment 112 .

[0046] Such an arrangement enables the movable plate segment 113 to be installed in the gap area between the first plate segment 111 and the second plate segment 112 , which is beneficial to improving the structural strength and reliability of the three-section guard plate 11 .

[0047] Furthermore, the shape of the movable plate segment 113 is adapted to the shape of the gap between the first plate segment 111 and the second plate segment 112. This arrangement avoids the situation where the area not blocked by the movable plate segment 113 is easily caught by a rope or other objects due to the small size of the movable plate segment 113, thereby further improving the structural strength and reliability of the guard plate 11 and improving safety.

[0048] In such Figures 5 to 9 In the shown embodiment 2, the difference from embodiment 1 is that the guard plate group includes two oppositely arranged guard plates 11, one of the guard plates 11 includes a first plate segment 111 and a second plate segment 112, one end of the first plate segment 111 facing away from the second plate segment 112 is connected to one end of the other guard plate 11 through a suspension shaft 41, and one end of the second plate segment 112 facing away from the first plate segment 111 is connected to the other end of the other guard plate 11 through a connecting shaft 42, one end of the hook 20 is rotatably connected to the suspension shaft 41, and one side of the first plate segment 111 facing the second plate segment 112 is at least partially opposite to the hanging rope area 101, the first plate segment 111 is detachably rotatably connected to one end of the suspension shaft 41, and the first plate segment 111 is detachably connected to the second plate segment 112, and when the second plate segment 112 is separated from the first plate segment 111 and the first plate segment 111 is not separated from the suspension shaft 41, the first plate segment 111 can swing vertically around its connection position with the suspension shaft 41.

[0049] In this embodiment, when the first plate segment 111 needs to be disassembled, the first plate segment 111 and the second plate segment 112 are first disassembled, and then the first plate segment 111 is swung to separate the connection between the first plate segment 111 and the second plate segment 112. At this time, the operator can hang the rope from the gap generated by the separation of the connection between the first plate segment 111 and the second plate segment 112, or can hang the rope after the first plate segment 111 is separated from the suspension shaft 41. Compared with the rotating opening and closing lifting pulley in the prior art, the area of ​​the opening of the rotating opening rope hanging area 101 of this embodiment is formed at a position where the first plate segment 111 and the second plate segment 112 are close to each other. The opening of the rope hanging area 101 can be rotated and opened with a small rotation angle, which is convenient for the operator to hang the rope from bottom to top and does not require a large rotation space to be reserved. Furthermore, when the gap generated by the separation at the connection between the first plate segment 111 and the second plate segment 112 is too small to be used for hanging the rope, the first plate segment 111 can be directly removed from the hanging shaft 41 and the opening of the rope hanging area 101 can be opened wide, which is convenient to operate and has good applicability.

[0050] Specifically, a first transition structure is disposed on the outer side of one end of the second plate segment 112 close to the first plate segment 111, and a second transition structure is correspondingly disposed on one end of the first plate segment 111 close to the second plate segment 112. The first transition structure is detachably connected to the second transition structure via fasteners.

[0051] It can be understood that the transition structure (first transition structure and second transition structure) between the second plate segment 112 and the first plate segment 111 is the same as the transition structure (first transition structure and second transition structure) between the movable plate segment 113 and the first plate segment 111 or the second plate segment 112 in the first embodiment. This arrangement avoids the situation where the force on the connection point when the first plate segment 111 and the second plate segment 112 are directly connected to each other, which is conducive to ensuring the service life of the first plate segment 111 and the second plate segment 112. In addition, this arrangement can also adaptively select a suitable transition structure, transition area, transition length, etc. according to actual conditions, thereby improving the reliability and stability of the transition between the first plate segment 111 and the second plate segment 112.

[0052] like Figures 5 to 9 As shown, the first plate segment 111 is correspondingly provided with a matching hole 1111, the radial dimension of the matching hole 1111 is larger than the hanging shaft 41, the end of the hanging shaft 41 is provided with an anti-slip section 411, the first plate segment 111 is detachably mounted on the hanging shaft 41 through the matching hole 1111, and the anti-slip section 411 is matched with the stopper on the outer surface of the first plate segment 111.

[0053] In this way, the first plate segment 111 can swing by limiting the radial dimension of the matching hole 1111, and the reliability of the connection between the first plate segment 111 and the suspension shaft 41 is achieved by setting the anti-slip segment 411, thereby preventing the first plate segment 111 from sliding off the suspension shaft 41. Specifically, Figures 6 to 9 As shown, the bottom of the anti-slip segment 411 and the bottom of the shaft body of the suspension shaft 41 are designed to be arc-shaped, the top of the anti-slip segment 411 is higher than the top of the shaft body of the suspension shaft 41, and the matching hole 1111 is also used to limit the swing angle of the first plate segment 111. It can be understood that when the first plate segment 111 has not swung to the maximum swingable angle position, the first plate segment 111 is stopped by the top of the anti-slip segment 411, and when the first plate segment 111 swings to the maximum swingable angle position, the top of the anti-slip segment 411 is opposite to the matching hole 1111, and the first plate segment 111 can slip off the anti-slip segment 411.

[0054] Specifically, in this embodiment, Figure 8 As shown in the half-section view, even when the first plate segment 111 is swung to the maximum swingable angle, the gap between the first plate segment 111 and the second plate segment 112 is still not suitable for hanging a rope, and the first plate segment 111 needs to be removed from the hanging shaft 41 (as shown in FIG. Fig. 9 shown).

[0055] Preferably, the anti-slip section 411 is rotatably arranged.

[0056] The assembly and disassembly of the suspension shaft 41 and the first plate segment 111 and the assembly and disassembly of the first plate segment 111 and the second plate segment 112 can be performed simultaneously or separately. Fig. 9 The figure shows a half-section view of the lifting tackle of the second embodiment in the rope hanging state, at which the first plate section 111 is completely removed from the hanging shaft 41 and the second plate section 112 .

[0057] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0058] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0059] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0060] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0061] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lifting tackle, characterized in that: The lifting pulley comprises a guard plate group, a hook (20) and a pulley (30), wherein the pulley (30) is rotatably arranged in the guard plate group, one end of the hook (20) extends into the guard plate group and is rotatably connected to the guard plate group, and the area between the connection position of the hook (20), the guard plate group and the pulley (30) forms a hanging rope area (101), and a physical structure corresponding to the hanging rope area (101) on one side of the guard plate group is detachably arranged.

2. The lifting tackle according to claim 1, characterized in that: The guard plate group comprises two guard plates (11) arranged opposite to each other, wherein one of the guard plates (11) comprises a first plate segment (111), a second plate segment (112) and a movable plate segment (113); one end of the first plate segment (111) facing away from the second plate segment (112) is connected to one end of the other guard plate (11) via a suspension shaft (41); one end of the second plate segment (112) facing away from the first plate segment (111) is connected to the other end of the other guard plate (11) via a connecting shaft (42); one end of the hook (20) is rotatably connected to the suspension shaft (41); and the movable plate segment (113) is at least partially opposite to the hanging rope area (101) and is detachably connected to the first plate segment (111) and the second plate segment (112), respectively.

3. The lifting tackle according to claim 2, characterized in that: A first transfer structure is provided on the outer sides of the ends of the first plate segment (111) and the second plate segment (112) that are close to each other, and second transfer structures are provided at both ends of the movable plate segment (113) respectively, and the first transfer structure on the second plate segment (112) and the corresponding second transfer structure on the movable plate segment (113) are detachably connected via fasteners, and the first transfer structure on the first plate segment (111) and the corresponding second transfer structure on the movable plate segment (113) are detachably connected via the fasteners.

4. The lifting tackle according to claim 3, characterized in that: The first adapter structure comprises two adapter seats (51) arranged at intervals, and a clamping area (501) is formed between the two adapter seats (51); the second adapter structure comprises an adapter protrusion (52); the fastener is an adapter shaft (53); the adapter protrusion (52) and the adapter seat (51) respectively have a first penetration hole (511) and a second penetration hole (521) for penetrating the adapter shaft (53); the adapter protrusion (52) is at least partially arranged in the clamping area (501); when the first penetration hole (511) and the second penetration hole (521) are facing each other, the adapter protrusion (52) and the two adapter seats (51) are pluggably connected through the adapter shaft (53).

5. The lifting tackle according to claim 4, characterized in that: The clamping area (501) on the first plate segment (111) and the second plate segment (112) penetrates the first plate segment (111) and the second plate segment (112) along the thickness direction of the guard plate (11), and the movable plate segment (113) is at least partially located between the first plate segment (111) and the second plate segment (112).

6. The lifting tackle according to claim 2, characterized in that: The shape of the movable plate segment (113) is adapted to the shape of the gap between the first plate segment (111) and the second plate segment (112).

7. The lifting tackle according to claim 1, characterized in that: The guard plate group comprises two guard plates (11) arranged opposite to each other, wherein one of the guard plates (11) comprises a first plate segment (111) and a second plate segment (112), one end of the first plate segment (111) facing away from the second plate segment (112) is connected to one end of the other guard plate (11) via a suspension shaft (41), and one end of the second plate segment (112) facing away from the first plate segment (111) is connected to the other end of the other guard plate (11) via a connecting shaft (42), one end of the hook (20) is rotatably connected to the suspension shaft (41), and the first One side of a plate segment (111) facing the second plate segment (112) is at least partially opposite to the hanging rope area (101); the first plate segment (111) is detachably rotatably connected to one end of the suspension shaft (41); the first plate segment (111) is detachably connected to the second plate segment (112); when the second plate segment (112) is separated from the first plate segment (111) and the first plate segment (111) is not separated from the suspension shaft (41), the first plate segment (111) can vertically swing around its connection position with the suspension shaft (41).

8. The lifting tackle according to claim 7, characterized in that: A first transition structure is arranged on the outer side of one end of the second plate segment (112) close to the first plate segment (111), and a second transition structure is correspondingly arranged on one end of the first plate segment (111) close to the second plate segment (112), and the first transition structure is detachably connected to the second transition structure via a fastener.

9. The lifting tackle according to claim 7, characterized in that: The first plate segment (111) is correspondingly provided with a matching hole (1111), the radial dimension of the matching hole (1111) is larger than the suspension shaft (41), the end of the suspension shaft (41) is provided with an anti-slip section (411), the first plate segment (111) is detachably mounted on the suspension shaft (41) through the matching hole (1111), and the anti-slip section (411) is matched with a stopper on the outer surface of the first plate segment (111).

10. The lifting tackle according to claim 1, characterized in that: The outer periphery of the pulley (30) is provided with a rope hanging groove (301) for hanging a rope.

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