Clamping device and hoisting equipment

Abstract

The utility model provides a clamping device and hoisting equipment, the clamping device is suitable for clamping an object to be moved, the clamping device comprises: a first connecting piece, the first connecting piece extends along the horizontal direction, the top of the first connecting piece is provided with a hoisting ring, and the hoisting ring is used for hooking on a hoisting hook; the two clamping parts are oppositely arranged on the two sides of the to-be-moved object in the horizontal direction, all the clamping parts are movably connected with the first connecting piece, and the two clamping parts can move face to face or back to back in the horizontal direction so as to be close to or away from the to-be-moved object; each clamping component comprises two clamping parts, the two clamping parts are oppositely arranged in the vertical direction to form a clamping space in a surrounding mode, the clamping space is used for clamping an object to be moved, and the size of the clamping space is adjustable so that the object to be moved can be clamped or loosened. The clamping device disclosed by the utility model solves the problem that an object to be moved is easily separated from a lifting hook when the object to be moved is carried by a crane in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering construction, and particularly relates to a clamping device and a hoisting device. Background Technique

[0002] The crane on the construction site hooks the object to be moved through a hook, then the hook drives the object to be moved to rise and then moves to the designated position, and then the hook drives the object to be moved to descend, so that the object to be moved is moved to the designated position.

[0003] However, during the movement of the hook, the object to be moved is likely to separate from the hook, causing the object to be moved to fall from the air, resulting in the object to be moved being unable to be transported to the designated position, easily causing damage to the object to be moved, and even the falling object to be lifted may injure the staff on the ground, posing a potential safety accident hazard. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a clamping device and a hoisting device to solve the problem that the object to be moved is likely to separate from the hook when the crane in the prior art transports the object to be moved.

[0005] To achieve the above purpose, according to one aspect of the utility model, a clamping device is provided, which is suitable for clamping an object to be moved. The clamping device includes: a first connecting member, the first connecting member extends in the horizontal direction, and a lifting ring is arranged at the top of the first connecting member, and the lifting ring is used for hooking on the hook; two clamping members, the two clamping members are arranged oppositely in the horizontal direction on both sides of the object to be moved, and each clamping member is movably connected to the first connecting member, and the two clamping members can move towards or away from each other in the horizontal direction to approach or move away from the object to be moved; each clamping member includes two clamping parts, the two clamping parts are arranged oppositely in the vertical direction to form a clamping space therearound, the clamping space is used for clamping the object to be moved, and the size of the clamping space is adjustably arranged to clamp or loosen the object to be moved.

[0006] Furthermore, one of the two clamping parts is a movable clamping plate, and the other clamping part is a fixed clamping plate. Each clamping member further includes a connecting plate, the movable clamping plate and the fixed clamping plate are arranged oppositely on both sides of the connecting plate in the vertical direction, and the movable clamping plate is movably arranged in the vertical direction towards or away from the fixed clamping plate, so that the clamping space is reduced or increased.

[0007] Furthermore, the clamping device further includes a first transmission member, the first transmission member includes a first transmission lead screw and a first transmission block, the first transmission lead screw extends in the vertical direction, the first transmission block is connected to the movable clamping plate, the first transmission block is movably sleeved on the first transmission lead screw, and the first transmission lead screw is rotatably arranged around the axis of the first transmission lead screw, so that the first transmission block reciprocates in the vertical direction.

[0008] Furthermore, the clamping device further includes a second transmission member disposed in the inner cavity of the first connecting member. The second transmission member includes a second transmission lead screw and a second transmission block. The second transmission lead screw extends in the horizontal direction and includes two threaded rod segments with opposite helix directions. There are two second transmission blocks, which are arranged in one-to-one correspondence with the two clamping members and the two threaded rod segments respectively. Each second transmission block is movably sleeved on the corresponding threaded rod segment, and each second transmission block is connected to the corresponding clamping member. The second transmission lead screw is rotatably disposed about its axis to move the two second transmission blocks towards or away from each other in the horizontal direction.

[0009] Furthermore, the clamping device further includes two second connecting members, which are arranged in one-to-one correspondence with the two second transmission blocks and the two clamping members respectively. Both ends of each second connecting member are respectively connected to the corresponding clamping member and the corresponding second transmission block.

[0010] Furthermore, each clamping member further includes a first guiding member. A first guiding groove is provided on the inner cavity wall of the first connecting member and extends in the horizontal direction. There are two first guiding members, which are arranged in one-to-one correspondence with the two second transmission blocks. Each first guiding member is connected to the corresponding second transmission block and is movably inserted into the first guiding groove.

[0011] Furthermore, each clamping member includes a first protection member and a first driving member. The first protection member of each clamping member is connected to the connecting plate and is also connected to the corresponding second connecting member. The first driving member is disposed in the first protection member and is drivingly connected to the first transmission lead screw to drive the first transmission lead screw to move.

[0012] Furthermore, the clamping device further includes a second protection member and a second driving member. The second protection member is disposed on one side of the first connecting member, and the second driving member is disposed in the second protection member. The second driving member is drivingly connected to the second transmission lead screw to drive the second transmission lead screw to move.

[0013] Furthermore, the clamping device further includes a third connecting member and a reinforcing rod. The third connecting member is disposed on the first connecting member, and a lifting ring is provided on the third connecting member. There are two reinforcing rods. The first end of each reinforcing rod is connected to the third connecting member, and the second end of each reinforcing rod is connected to the first connecting member to support the third connecting member.

[0014] According to another aspect of the present utility model, a hoisting device is provided. The hoisting device includes a crane and the above-mentioned clamping device. A hook is provided on the crane, and the lifting ring of the clamping device is used to be hooked on the hook.

[0015] Applying the technical solution of the present utility model, the clamping device includes a first connecting member and two clamping components. A lifting ring is provided at the top of the first connecting member. Each clamping component is movably connected to the first connecting member. Each clamping component includes two clamping parts, and the two clamping parts are arranged opposite to each other in the vertical direction to form a clamping space therearound. By hanging the hook on the lifting ring, the hook is connected to the first connecting member. By moving the two clamping components towards each other horizontally to approach the object to be moved until the object to be moved enters the clamping space, and then reducing the size of the clamping space, the two clamping parts clamp the object to be moved, so that the hook is connected to the object to be moved, facilitating the hook to move the object to be moved to a predetermined position. The clamping device of the present application ensures the connection reliability between the object to be moved and the hook, avoiding the separation of the hook and the object to be moved, thus solving the problem that the object to be moved is easily separated from the hook when the crane in the prior art transports the object to be moved. Description of the Drawings

[0016] The schematic diagrams in the specification forming a part of the present application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 A schematic structural diagram showing an embodiment of the assembly of the clamping device and the hook according to the present utility model;

[0018] Figure 2 A schematic structural diagram showing the clamping component of the clamping device according to the present utility model;

[0019] Figure 3 Showing Figure 1 A partial enlarged schematic diagram at A in

[0020] Figure 4 A schematic structural diagram showing the first connecting member, the second transmission component, the second protection member, the second driving member and the second connecting member of the clamping device according to the present utility model.

[0021] Among them, the above-mentioned drawings include the following reference numerals:

[0022] 10. First connecting piece; 11. Suspension ring; 12. Hook; 20. Clamping component; 21. Clamping part; 22. Clamping space; 23. Movable clamping plate; 231. Protective pad; 24. Fixed clamping plate; 25. Connecting plate; 251. Second guide groove; 252. Second guide piece; 31. First transmission lead screw; 32. First transmission block; 41. Second transmission lead screw; 411. Threaded rod section; 42. Second transmission block; 50. Second connecting piece; 51. First guide piece; 52. First guide groove; 61. First protective piece; 611. Sealing ring; 62. First driving piece; 63. Second protective piece; 64. Second driving piece; 70. Third connecting piece; 71. Reinforcing rod. Detailed implementation manners

[0023] It should be noted that the terms used herein are only for describing the specific implementation manners 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 forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0025] In the description of the present application, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are usually based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0026] Please refer toFigures 1 to 4 , the present utility model provides a clamping device applicable to clamping an object to be moved. The clamping device includes: a first connecting member 10 extending in the horizontal direction, with a lifting ring 11 provided at the top of the first connecting member 10 for hooking on a lifting hook 12; two clamping members 20 relatively arranged in the horizontal direction on both sides of the object to be moved, each clamping member 20 being movably connected to the first connecting member 10, and the two clamping members 20 being capable of moving towards or away from each other in the horizontal direction to approach or move away from the object to be moved; each clamping member 20 includes two clamping parts 21 relatively arranged in the vertical direction to enclose a clamping space 22 for clamping the object to be moved, and the size of the clamping space 22 is adjustably set to clamp or loosen the object to be moved.

[0027] The clamping device of the present utility model includes a first connecting member 10 and two clamping members 20. A lifting ring 11 is provided at the top of the first connecting member 10, and each clamping member 20 is movably connected to the first connecting member 10. Each clamping member 20 includes two clamping parts 21 relatively arranged in the vertical direction to enclose a clamping space 22. By hanging the lifting ring 11 on the lifting hook 12, the lifting hook 12 is connected to the first connecting member 10. By moving the two clamping members 20 towards each other in the horizontal direction to approach the object to be moved until the object to be moved enters the clamping space 22, and then reducing the size of the clamping space 22, the two clamping parts 21 clamp the object to be moved, so that the lifting hook 12 is connected to the object to be moved, facilitating the lifting hook 12 to move the object to be moved to a predetermined position. The clamping device of the present application ensures the connection reliability between the object to be moved and the lifting hook 12, avoiding the separation of the lifting hook 12 and the object to be moved, thus solving the problem that the object to be moved is prone to separation from the lifting hook 12 when the existing crane transports the object to be moved.

[0028] During specific implementation, when the object to be moved reaches the predetermined position, the size of the clamping space 22 is enlarged, so that the two clamping parts 21 loosen the object to be moved, and then the two clamping members 20 move away from each other in the horizontal direction until the object to be moved is separated from the clamping space 22, thereby separating the lifting hook 12 from the object to be moved.

[0029] In this embodiment, as Figure 1 and Figure 2 shown, one of the two clamping parts 21 is a movable clamping plate 23, and the other clamping part 21 of the two clamping parts 21 is a fixed clamping plate 24. Each clamping member 20 further includes a connecting plate 25. The movable clamping plate 23 and the fixed clamping plate 24 are relatively arranged on both sides of the connecting plate 25 in the vertical direction, and the movable clamping plate 23 is movably arranged in the vertical direction towards the direction of approaching or moving away from the fixed clamping plate 24 to reduce or increase the clamping space 22.

[0030] Specifically, by moving the movable clamping plate 23 in the vertical direction towards the fixed clamping plate 24, the clamping space 22 is reduced, so that the movable clamping plate 23 and the fixed clamping plate 24 jointly clamp the object to be moved, preventing the object to be moved from separating from the clamping space 22, ensuring the connection reliability between the clamping component and the object to be moved, and further ensuring the connection reliability between the object to be clamped and the hook 12.

[0031] Specifically, protective pads 231 are provided on both the movable clamping plate 23 and the fixed clamping plate 24. The protective pads 231 help to increase the friction between the movable clamping plate 23 or the fixed clamping plate 24 and the object to be moved, playing a role in anti-slip and preventing the object to be moved from slipping between the fixed clamping plate 24 and the movable clamping plate 23.

[0032] Specifically, as Figure 3 shown, on the connecting plate 25 of at least one of the two clamping components 20, a second guiding groove 251 is provided. The second guiding groove 251 extends in the vertical direction. A second guiding member 252 is provided on the movable clamping plate 23 of this clamping component 20. The second guiding member 252 is movably inserted into the second guiding groove 251, so that the second guiding member 252 can guide the movable clamping plate 23 and prevent the moving direction of the movable clamping plate 23 from deviating from the vertical direction.

[0033] During specific implementation, when the two clamping components 20 move towards each other in the horizontal direction close to the object to be moved until the object to be moved enters the clamping space 22, the connecting plate 25 of each clamping component 20 abuts against the object to be clamped, so that the connecting plate 25 limits the object to be clamped and prevents the object to be moved from continuing to move in the horizontal direction and leaving the clamping space 22.

[0034] In this embodiment, as Figure 1 and Figure 2 shown, the clamping device further includes a first transmission component. The first transmission component includes a first transmission lead screw 31 and a first transmission block 32. The first transmission lead screw 31 extends in the vertical direction. The first transmission block 32 is connected to the movable clamping plate 23. The first transmission block 32 is movably sleeved on the first transmission lead screw 31. The first transmission lead screw 31 is rotatably arranged around the axis of the first transmission lead screw 31, so that the first transmission block 32 reciprocates in the vertical direction.

[0035] Specifically, by rotating the first transmission lead screw 31, the first transmission block 32 thereon is driven to move, so that the first transmission block 32 drives the movable clamping plate 23 to move in the vertical direction towards the fixed clamping plate 24, ensuring the smooth reduction of the clamping space 22 and ensuring the connection reliability between the clamping component and the object to be moved.

[0036] In this embodiment, as Figure 4 shown, the clamping device further includes a second transmission member disposed in the inner cavity of the first connecting member 10. The second transmission member includes a second transmission lead screw 41 and a second transmission block 42. The second transmission lead screw 41 extends in the horizontal direction and includes two threaded rod segments 411 with opposite helix directions; there are two second transmission blocks 42, and the two second transmission blocks 42 and the two clamping members 20 are provided in one-to-one correspondence, and the two second transmission blocks 42 and the two threaded rod segments 411 are provided in one-to-one correspondence. Each second transmission block 42 is movably sleeved on the corresponding threaded rod segment 411, and each second transmission block 42 is connected to the corresponding clamping member 20. The second transmission lead screw 41 is rotatably disposed about the axis of the second transmission lead screw 41 to enable the two second transmission blocks 42 to move towards or away from each other in the horizontal direction.

[0037] Specifically, by rotating the second transmission lead screw 41, the two second transmission blocks 42 thereon are driven to move towards each other, so that the two clamping members 20 move towards each other to ensure that the object to be moved smoothly enters the clamping space 22.

[0038] In this embodiment, as Figure 4 shown, the clamping device further includes two second connecting members 50. The two second connecting members 50 and the two second transmission blocks 42 are provided in one-to-one correspondence, and the two second connecting members 50 and the two clamping members 20 are provided in one-to-one correspondence. Both ends of each second connecting member 50 are respectively connected to the corresponding clamping member 20 and the corresponding second transmission block 42.

[0039] Specifically, the second connecting member 50 is used to connect the second transmission block 42 and the clamping member 20, ensuring that the clamping member 20 can move synchronously with the second transmission block 42.

[0040] In this embodiment, as Figure 2 shown, each clamping member 20 further includes a first guiding member 51. A first guiding groove 52 is provided on the inner cavity wall of the first connecting member 10. The first guiding groove 52 extends in the horizontal direction. There are two first guiding members 51, and the two first guiding members 51 and the two second transmission blocks 42 are provided in one-to-one correspondence. Each first guiding member 51 is connected to the corresponding second transmission block 42, and each first guiding member 51 is movably inserted into the first guiding groove 52.

[0041] Specifically, by the movement of the first guiding member 51 in the first guiding groove 52, the first guiding member 51 can guide the second transmission block 42 to prevent the movement direction of the second transmission block 42 from deviating from the horizontal direction.

[0042] In this embodiment, as Figure 2As shown, each clamping member 20 includes a first protective member 61 and a first driving member 62. The first protective member 61 of each clamping member 20 is connected to the connecting plate 25, and the first protective member 61 of each clamping member 20 is connected to the corresponding second connecting member 50. The first driving member 62 is disposed within the first protective member 61 and is drivingly connected to the first transmission lead screw 31 to drive the first transmission lead screw 31 to move.

[0043] Specifically, by covering the first driving member 62 with the first protective member 61, the first protective member 61 can protect the first driving member 62 from being damaged; the first driving member 62 is used to drive the first transmission lead screw 31 to move, thereby ensuring the smooth movement of the first transmission block 32 and the movable clamping plate 23.

[0044] Specifically, the first driving member 62 is a motor.

[0045] Specifically, a through hole is provided on the end surface of the first protective member 61 close to the first transmission lead screw 31. The first transmission lead screw 31 passes through the through hole and is drivingly connected to the first driving member 62. Each clamping member 20 includes a sealing ring 611. The sealing ring 611 is sleeved on the first transmission lead screw 31, and the sealing ring 611 abuts against the end surface of the first protective member 61 close to the first transmission lead screw 31, so that the sealing ring 611 seals the through hole to prevent dust from entering the first protective member 61 through the through hole.

[0046] In this embodiment, as Figure 4 shown, the clamping device further includes a second protective member 63 and a second driving member 64. The second protective member 63 is disposed on one side of the first connecting member 10, and the second driving member 64 is disposed within the second protective member 63. The second driving member 64 is drivingly connected to the second transmission lead screw 41 to drive the second transmission lead screw 41 to move.

[0047] Specifically, by covering the second driving member 64 with the second protective member 63, the second protective member 63 can protect the second driving member 64 from being damaged; the second driving member 64 is used to drive the second transmission lead screw 41 to move, thereby ensuring the smooth movement of the second transmission block 42 and the clamping member 20.

[0048] Specifically, the second driving member 64 is a motor.

[0049] In this embodiment, as Figure 1As shown, the clamping device further includes a third connecting member 70 and a reinforcing rod 71. The third connecting member 70 is disposed on the first connecting member 10, and a lifting ring 11 is provided on the third connecting member 70. There are two reinforcing rods 71. The first end of each reinforcing rod 71 is connected to the third connecting member 70, and the second end of each reinforcing rod 71 is connected to the first connecting member 10, so that each reinforcing rod 71 supports the third connecting member 70.

[0050] Specifically, the third connecting member 70 is used to connect the lifting ring 11 and the first connecting member 10, so as to enable the smooth connection between the hook 12 and the clamping device. The reinforcing rod 71 is used to support the third connecting member 70, enhancing the connection reliability between the third connecting member 70 and the first connecting member 10 and preventing the separation of the third connecting member 70 and the first connecting member 10.

[0051] The present utility model also provides a hoisting device, which includes a crane and the clamping device in the above embodiment. A hook 12 is provided on the crane, and the lifting ring 11 of the clamping device is used to be hooked on the hook 12.

[0052] The hoisting device of the present utility model includes a crane and the clamping device in the above embodiment. The clamping device includes a first connecting member 10 and two clamping members 20. A lifting ring 11 is provided at the top of the first connecting member 10, and the lifting ring 11 is connected to the hook 12 of the crane. Each clamping member 20 is movably connected to the first connecting member 10. Each clamping member 20 includes two clamping parts 21, and the two clamping parts 21 are oppositely arranged in the vertical direction to form a clamping space 22 therearound. By hanging the hook 12 on the lifting ring 11, the hook 12 is connected to the first connecting member 10. The two clamping members 20 move towards each other in the horizontal direction to approach the object to be moved until the object to be moved enters the clamping space 22, and then the size of the clamping space 22 is reduced, so that the two clamping parts 21 clamp the object to be moved, making the hook 12 connected to the object to be moved, which is convenient for the hook 12 to move the object to be moved to a predetermined position. The clamping device of the present application ensures the connection reliability between the object to be moved and the hook 12, preventing the separation of the hook 12 and the object to be moved, thereby solving the problem that the object to be moved is prone to separation from the hook 12 when the crane in the prior art transports the object to be moved.

[0053] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

[0054] The clamping device of the present utility model includes a first connecting member 10 and two clamping members 20. A lifting ring 11 is provided at the top of the first connecting member 10. Each clamping member 20 is movably connected to the first connecting member 10. Each clamping member 20 includes two clamping portions 21, and the two clamping portions 21 are arranged oppositely in the vertical direction to form a clamping space 22 therearound. The lifting hook 12 is hooked on the lifting ring 11, so that the lifting hook 12 is connected to the first connecting member 10. The two clamping members 20 move towards each other horizontally to approach the object to be moved until the object to be moved enters the clamping space 22, and then the size of the clamping space 22 is reduced, so that the two clamping portions 21 clamp the object to be moved, and the lifting hook 12 is connected to the object to be moved, facilitating the lifting hook 12 to move the object to be moved to a predetermined position. The clamping device of the present application ensures the connection reliability between the object to be moved and the lifting hook 12, and avoids the separation between the lifting hook 12 and the object to be moved, thus solving the problem that the object to be moved is prone to separation from the lifting hook 12 when the crane in the prior art transports the object to be moved.

[0055] For the sake of convenience of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial position relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure of the device. For example, if the device in the figure is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "beneath" other devices or structures afterwards. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations will be made for the spatial relative descriptions used here.

[0056] In addition, it should be noted that the use of words such as "first", "second" etc. to limit the components is only for the convenience of distinguishing the corresponding components. Without additional declaration, the above words have no special meaning, so they cannot be understood as limiting the protection scope of the present application.

[0057] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A clamping device, suitable for clamping an object to be moved, characterized in that: The clamping device comprises: A first connecting member (10), the first connecting member (10) extending in a horizontal direction, a lifting ring (11) being provided at the top of the first connecting member (10), the lifting ring (11) being used for being hooked on a lifting hook (12); Two clamping components (20), the two clamping components (20) are arranged relatively on both sides of the object to be moved along the horizontal direction, each of the clamping components (20) is movably connected to the first connecting member (10), and the two clamping components (20) can move towards or away from each other along the horizontal direction to approach or move away from the object to be moved; Each of the clamping components (20) comprises two clamping portions (21), the two clamping portions (21) being arranged opposite to each other in a vertical direction to surround and form a clamping space (22), the clamping space (22) being used to clamp the object to be moved, and the size of the clamping space (22) being adjustable to clamp or release the object to be moved.

2. The clamping device according to claim 1, characterized in that: One of the two clamping parts (21) is a movable clamping plate (23), and the other of the two clamping parts (21) is a fixed clamping plate (24). Each of the clamping components (20) further comprises a connecting plate (25). The movable clamping plate (23) and the fixed clamping plate (24) are arranged on both sides of the connecting plate (25) in a relative manner along the vertical direction. The movable clamping plate (23) is movably arranged in a direction approaching or moving away from the fixed clamping plate (24) along the vertical direction so as to reduce or increase the clamping space (22).

3. The clamping device according to claim 2, characterized in that: The clamping device also includes a first transmission component, which includes a first transmission screw (31) and a first transmission block (32). The first transmission screw (31) extends along the vertical direction. The first transmission block (32) is connected to the movable clamping plate (23). The first transmission block (32) can be movably mounted on the first transmission screw (31). The first transmission screw (31) is rotatably arranged around the axis of the first transmission screw (31) so that the first transmission block (32) can reciprocate along the vertical direction.

4. The clamping device according to claim 3, characterized in that: The clamping device further comprises a second transmission component, the second transmission component being arranged in the inner cavity of the first connecting member (10), the second transmission component comprising a second transmission screw (41) and a second transmission block (42), the second transmission screw (41) extending along the horizontal direction, the second transmission screw (41) comprising two threaded rod sections (411), and the two threaded rod sections (411) have opposite rotation directions; There are two second transmission blocks (42), the two second transmission blocks (42) and the two clamping components (20) are arranged in a one-to-one correspondence, the two second transmission blocks (42) and the two threaded rod sections (411) are arranged in a one-to-one correspondence, each second transmission block (42) can be movably sleeved on the corresponding threaded rod section (411), each second transmission block (42) is connected to the corresponding clamping component (20), and the second transmission screw (41) is rotatably arranged around the axis of the second transmission screw (41) so that the two second transmission blocks (42) move toward or away from each other along the horizontal direction.

5. The clamping device according to claim 4, characterized in that: The clamping device further comprises a second connecting member (50), wherein the number of the second connecting members (50) is two, the two second connecting members (50) and the two second transmission blocks (42) are arranged in a one-to-one correspondence, the two second connecting members (50) and the two clamping components (20) are arranged in a one-to-one correspondence, and the two ends of each second connecting member (50) are respectively connected to the corresponding clamping component (20) and the corresponding second transmission block (42).

6. The clamping device according to claim 4, characterized in that: Each of the clamping components (20) further comprises a first guide member (51), a first guide groove (52) is provided on the inner cavity wall of the first connecting member (10), the first guide groove (52) extends along the horizontal direction, there are two first guide members (51), the two first guide members (51) are provided in one-to-one correspondence with the two second transmission blocks (42), each of the first guide members (51) is connected to the corresponding second transmission block (42), and each of the first guide members (51) can be movably inserted into the first guide groove (52).

7. The clamping device according to claim 5, characterized in that: Each of the clamping components (20) comprises a first protective member (61) and a first driving member (62); the first protective member (61) of each of the clamping components (20) is connected to the connecting plate (25), and the first protective member (61) of each of the clamping components (20) is connected to the corresponding second connecting member (50); the first driving member (62) is arranged in the first protective member (61); the first driving member (62) is connected to the first transmission screw (31) in a driving manner so as to drive the first transmission screw (31) to move.

8. The clamping device according to claim 4, characterized in that: The clamping device further comprises a second protective member (63) and a second driving member (64), wherein the second protective member (63) is arranged on one side of the first connecting member (10), and the second driving member (64) is arranged in the second protective member (63), and the second driving member (64) is drivingly connected to the second transmission screw (41) to drive the second transmission screw (41) to move.

9. The clamping device according to claim 1, characterized in that: The clamping device also includes a third connecting member (70) and a reinforcing rod (71), wherein the third connecting member (70) is arranged on the first connecting member (10), and the third connecting member (70) is provided with the lifting ring (11); there are two reinforcing rods (71), and the first end of each reinforcing rod (71) is connected to the third connecting member (70), and the second end of each reinforcing rod (71) is connected to the first connecting member (10), so that each reinforcing rod (71) supports the third connecting member (70).

10. A lifting equipment, characterized in that: The lifting equipment comprises a crane and a clamping device according to any one of claims 1 to 9, wherein the crane is provided with a hook (12), and a lifting ring (11) of the clamping device is used for hooking on the hook (12).

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