Lifting appliance

Abstract

The utility model relates to the technical field of lifting devices, and discloses a lifting appliance which comprises a frame body, a supporting structure and a limiting assembly, the supporting structure can rotate to a first position relative to the frame body, the supporting structure and the frame body form a containing space used for containing a component to be lifted, and the supporting structure rotates to a second position to limit the component to be lifted. The supporting structure and the frame body form an opening for the component to enter and exit the accommodating space; the limiting assembly is arranged between the supporting structure and the frame body and used for fixing the relative position of the supporting structure and the frame body at least at the first position. When the lifting appliance is used, the whole lifting appliance can be lifted to the position above a component, the supporting structure can be located at the second position, when the lifting appliance descends to the position where the component enters the frame body through the opening and reaches the needed position, descending of the lifting appliance is stopped, and at the moment, the supporting structure can be rotated to the first position, so that the supporting structure is supported at the bottom of the component; therefore, the component is fixed in the accommodating space. In the process, an operator does not need to climb a component for installation, operation is convenient, and safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to a sling. Background Art

[0002] For some building prefabricated components, it is usually necessary to transport them to the construction site after prefabrication in the prefabrication factory. During the production, loading and unloading of the prefabricated components, lifting is required. Usually, lifting points are installed on the prefabricated components, and lifting equipment is used for lifting. During operation, the operator needs to climb to the top of the prefabricated component to install the lifting point sling. The operation is rather troublesome. For the demoulding and transportation of the prefabricated component, climbing is required multiple times. There are certain safety hazards for the operator to climb up and down for operation. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a sling that is convenient to operate.

[0004] The sling according to the embodiment of the utility model includes a frame body, a support structure and a limiting component. The support structure is rotatably connected to the lower end of the frame body. The support structure can rotate relative to the frame body to a first position or a second position. In the first position, the support structure and the frame body form a receiving space for receiving the component to be lifted. The support structure is used for supporting the bottom of the component. In the second position, the support structure and the frame body form an opening for the component to enter and exit the receiving space. The limiting component is arranged between the support structure and the frame body and is used for fixing the relative position of the support structure and the frame body at least in the first position.

[0005] The sling according to the embodiment of the utility model has at least the following beneficial effects: During use, the sling as a whole can be lifted above the component to be lifted by a lifting device (such as a gantry crane, etc.). The support structure can be located at the second position, so that an opening through which the component can pass can be formed at the lower end of the frame body. Therefore, when the sling is lowered until the component enters the frame body through the opening and reaches the required position, the lowering of the sling can be stopped. At this time, the support structure can be rotated to the first position, so that the support structure supports the bottom of the component, thereby fixing the component in the receiving space. The support structure is limited and fixed to the bracket through the limiting component, so as to ensure the stability of the support. During this process, the operator does not need to climb the component for installation, the operation is convenient and the safety is high.

[0006] The spreader according to an embodiment of the present utility model, the frame body includes two sets of support assemblies extending downward, each set of the support assemblies includes two supports arranged at intervals; the support structure includes two sets of bracket assemblies, each set of the bracket assemblies includes two brackets; each of the supports is rotatably connected to a bracket, the bracket can rotate relative to the support about a vertical axis to the first position or the second position, and a limiting assembly is provided between each of the brackets and each of the supports for fixing the relative position of the bracket and the support at least in the first position.

[0007] The spreader according to an embodiment of the present utility model, an installation groove is provided at the lower end of the support, the bracket extends horizontally, one end of the bracket is located in the installation groove and is rotatably connected to the lower end of the support through a rotating shaft extending in the vertical direction, the bracket rotates horizontally around the rotating shaft, and one side wall of the installation groove is located below the bracket for supporting the bracket.

[0008] The spreader according to an embodiment of the present utility model, the limiting assembly includes a fixing member, a first movable member and a first limiting member, one of the fixing member and the first limiting member is connected to the bracket, and the other is connected to the support; in a state where the bracket is in the first position, the positions of the fixing member and the first limiting member correspond to each other, and the first movable member can rotate relative to the first limiting member to cooperate with the fixing member to limit the rotation of the bracket.

[0009] The spreader according to an embodiment of the present utility model, the limiting assembly further includes a second movable member and a second limiting member, the second limiting member is connected to the support or the bracket connected to the first limiting member, and the second limiting member and the first limiting member are arranged at intervals in the horizontal direction; one end of the first movable member is rotatably connected to the first limiting member; in a state where the bracket is in the second position, the positions of the fixing member and the second limiting member correspond to each other, and the second movable member can rotate relative to the second limiting member to cooperate with the fixing member to limit the rotation of the bracket.

[0010] The spreader according to an embodiment of the present utility model, a leveling device is connected to at least one of the brackets in each set of the bracket assemblies, the leveling device can be driven to adjust its position in the up and down direction relative to the bracket for abutting against the bottom of the member above the bracket.

[0011] The spreader according to an embodiment of the present utility model, on the bracket connected with the leveling device: the bracket is provided with a waist-shaped hole, the length direction of the waist-shaped hole is consistent with the extending direction of the bracket; the leveling device passes through the waist-shaped hole and can move in the waist-shaped hole to adjust its position in the horizontal direction.

[0012] The spreader according to an embodiment of the present utility model, the frame body further includes an upper frame, and the bracket is fixedly connected to the upper frame; when the bracket is in the first position, the upper frame, the frame body and the bracket enclose two opposite accommodating spaces; when the bracket is in the second position, the lower part of the bracket forms the opening.

[0013] The spreader according to an embodiment of the present utility model, a protective pad is connected to the top of the support structure.

[0014] The spreader according to an embodiment of the present utility model, lifting lugs are respectively connected to the four corners of the top of the frame body along the horizontal direction, lifting holes are respectively provided on each lifting lug, and the directions of the lifting holes of adjacent lifting lugs intersect.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the spreader according to an embodiment of the present utility model;

[0017] Figure 2 is Figure 1 a top view of the shown spreader;

[0018] Figure 3 is Figure 1 a side view of the shown spreader along the width direction;

[0019] Figure 4 is Figure 1 a side view of the shown spreader along the length direction;

[0020] Figure 5 is a sectional view of the spreader according to an embodiment of the present utility model;

[0021] Figure 6 is a schematic diagram of the bracket of the spreader according to an embodiment of the present utility model in the second position;

[0022] Figure 7 is Figure 6 a partial enlarged schematic diagram at A in ;

[0023] Figure 8 is a schematic diagram of the bracket of the spreader according to an embodiment of the present utility model in the first position;

[0024] Figure 9 is Figure 8 a partial enlarged schematic diagram at B in.

[0025] Reference Signs:

[0026] Frame body 100; Bracket 110; Installation groove 111; Groove wall 112; Upper frame 120; Lifting lug 130; Accommodation space 140; Opening 150;

[0027] Support structure 200; Corbel 210; Rotating shaft 220; Leveling device 230; Protection pad 240; Waist-shaped hole 250;

[0028] Limit component 300; Fixing part 310; First movable part 320; First limiting part 330; Second limiting part 340; Limit groove 350; Lock pin 360; Second movable part 370. Specific implementation manner

[0029] The following will clearly and completely describe the concept and the technical effects generated by the present utility model in combination with the embodiments, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative labor shall fall within the protection scope of the present utility model.

[0030] In the description of the embodiments of the present utility model, if it involves orientation description, such as "upper", "lower", "front", "rear", "left", "right", etc., the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0031] In the description of the embodiments of the present utility model, if a certain feature is referred to as "set", "fixed", "connected", "installed" on another feature, it can be directly set, fixed, connected, installed on another feature, or indirectly set, fixed, connected, installed on another feature. In the description of the embodiments of the present utility model, if it involves "several", its meaning is more than one, if it involves "multiple", its meaning is more than two, if it involves "greater than", "less than", "exceeding", it should be understood as not including the present number, if it involves "above", "below", "within", it should be understood as including the present number. If it involves "first", "second", it should be understood as used to distinguish technical features, rather than indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0032] When prefabricated components such as bay window components, bay window components, and staircase components are produced, lifting tools for hoisting and loading / unloading are used. The existing method is to utilize the lifting points for prefabricated component installation, which requires personnel to climb to the top of the component to tighten with a universal lifting ring, making it rather troublesome to use. Moreover, from the time the component is demolded until the shipping production process, it is necessary to climb up and down multiple times, and there are also certain safety issues regarding working at heights.

[0033] An embodiment of the present utility model provides a convenient operating lifting tool for hoisting prefabricated components, which is beneficial for the loading, unloading, and transfer during the production process and the shipping and conveying process. The lifting tool is convenient to use and operate, has high safety, strong practicability, and is beneficial for improving the hoisting and transfer efficiency.

[0034] The lifting tool of the embodiment of the present utility model can be used for hoisting various prefabricated components such as bay window components, bay window components, and staircase components, which can be hereinafter simply referred to as components.

[0035] The following combines the description with the attached Figures 1 - 9 to introduce the embodiment of the present utility model. Among them, Figure 1 is the structural schematic diagram of the lifting tool of the embodiment of the present utility model; Figure 2 is Figure 1 the top view of the shown lifting tool; Figure 3 is Figure 1 the side view of the shown lifting tool along the width direction; Figure 4 is Figure 1 the side view of the shown lifting tool along the length direction; Figure 5 is a cross-sectional view of the lifting tool of the embodiment of the present utility model; Figure 6 is the schematic diagram of the bracket of the lifting tool of the embodiment of the present utility model in the second position; Figure 7 is Figure 6 the partial enlarged schematic diagram at A in Figure 8 is the schematic diagram of the bracket of the lifting tool of the embodiment of the present utility model in the first position; Figure 9 is Figure 8 the partial enlarged schematic diagram at B in

[0036] Referring to Figures 1 to 4 , the lifting tool of the embodiment of the present utility model includes a frame body 100, a support structure 200, and a limiting component 300. The support structure 200 is rotatably connected to the lower end of the frame body 100, and the support structure 200 can rotate relative to the frame body 100 to a first position or a second position.

[0037] In the first position, the support structure 200 and the frame body 100 form a receiving space 140 for receiving the prefabricated component to be hoisted. The support structure 200 is used to support the bottom of the component to realize the lifting of the component.

[0038] In the second position, the support structure 200 and the frame body 100 form an opening 150 for components to enter and exit the accommodation space 140, enabling the loading and unloading of components.

[0039] The limiting component 300 is arranged between the support structure 200 and the frame body 100 and is used to fix the relative positions of the support structure 200 and the frame body 100 at least in the first position. Therefore, after the support structure 200 supports the bottom of the component in the first position, the position of the supported component can be ensured to be stable, avoiding the fall caused by the rotation of the supported component and guaranteeing safety.

[0040] During use, the sling can be hoisted as a whole to the upper part of the component to be hoisted by a hoisting device (such as a gantry crane, etc.). At this time, the support structure 200 can be located in the second position, so that an opening 150 through which the component can pass can be formed at the lower end of the frame body 100. Therefore, when the sling is lowered from the upper part of the component to the position where the component enters the frame body 100 through the opening 150 and reaches the required position, the lowering of the sling is stopped. At this time, the support structure 200 can be rotated to the first position, so that the support structure 200 supports the bottom of the component, thereby fixing the component in the accommodation space 140. The support structure 200 is limited and fixed to the support 110 through the limiting component 300, thus ensuring the stability of the support. The component can be transported to the target position by hoisting the sling with a hoisting device. When removing the sling, only by releasing the fixation of the limiting component 300 on the support structure 200, the support structure 200 can be rotated to the second position, making way for the opening 150 for the component to exit the accommodation space 140. Then, by hoisting the sling with a hoisting device until the component completely disengages from the opening 150, the sling can be transferred to other positions for placement, or hoisted to the next component to continue hoisting. During this process, the operator does not need to climb the component for installation, the operation is convenient and the safety is high, which can effectively improve the hoisting efficiency of the component and is beneficial to improving the production efficiency.

[0041] Lifting lugs 130 can be arranged at the top of the frame body 100 for fixing lifting ropes and cooperating with hoisting equipment for hoisting. Alternatively, a hook groove can be arranged at the top of the frame body 100, which can be used to cooperate with a hook for hoisting. Alternatively, the top of the frame body 100 can include a frame structure composed of multiple rods, which can be fixed by steel cable slings for hoisting.

[0042] In some embodiments, lifting lugs 130 may be respectively connected to the four corners of the top of the frame body 100 along the horizontal direction. Each lifting lug 130 is provided with a lifting hole, and the directions of the lifting holes of adjacent lifting lugs 130 intersect, thereby forming an inclined structure of the lifting lugs 130. For example, a structure of the lifting lugs 130 inclined toward the diagonal direction is formed. The inclination angle of the lifting lugs 130 may be 30° to 60°, such as 30°, 35°, 40°, 45°, 50°, 55°, 60° or any other value within the range of 30° to 60°. The inclination angles of the respective lifting lugs 130 may be the same or different. The inclined lifting lugs 130 can effectively reduce the torsion of the lifting lugs 130 and improve the strength.

[0043] In some embodiments, a protective pad 240 may be connected to the top of the support structure 200, so that when supported on the bottom of the component, separation can be carried out through the protective pad 240, effectively reducing the extrusion and damage between the component and the support structure 200. As an example, the protective pad 240 may be made of a soft material such as rubber, or made of a non-metallic material such as plastic, PU board, etc., which can avoid the slippage between the component and the support structure 200.

[0044] In some embodiments, the protective pad 240 and the support structure 200 may be fastened with flat head screws, or the protective pad 240 may be wrapped around the outer peripheral surface of the support structure 200 and fixed by a tie strap.

[0045] In some embodiments, the frame body 100 includes two sets of downwardly extending bracket assemblies, and each bracket assembly includes two brackets 110 arranged at intervals. The support structure 200 includes two sets of bracket assemblies, and each bracket assembly includes two brackets 210. Wherein, each bracket 110 is respectively rotatably connected to a bracket 210, and the bracket 210 can rotate relative to the bracket 110 about the vertical axis to a first position or a second position. A limiting assembly 300 is provided between each bracket 210 and each bracket 110 for fixing at least the relative position of the bracket 210 and the bracket 110 in the first position. Therefore, the bracket 210 can reach the first position or the second position by rotating horizontally relative to the bracket 110, and the structure is simple and the operation is convenient.

[0046] Wherein, when the bracket 210 reaches the first position, the two brackets 110 on the same bracket assembly, and the two brackets 210 on the two brackets 110 enclose a receiving space 140. The two bracket assemblies are arranged at intervals relative to each other, and the interval therebetween forms a space for receiving the main body of the component. The receiving space 140 formed by the two bracket assemblies and the brackets 210 and the space formed by the interval between the two bracket assemblies can be used to receive the component. The brackets 110 can be used to limit the side part of the component in the horizontal direction, and the brackets 210 support the bottom of the component. Thus, the component can be effectively restricted on the lifting tool to prevent the component from rolling down.

[0047] In some embodiments, the top surfaces of each corbel 210 are in the same plane, which is conducive to abutting against components with flat bottoms, ensuring that the components are placed horizontally and remain level during lifting, thereby improving the stability of the components.

[0048] In some embodiments, the frame 100 further includes an upper frame 120, and the bracket 110 is fixedly connected to the upper frame 120. The upper frame 120 and the bracket 110 are fixed to form a stable frame structure, thereby improving the overall structural stability. When the corbel 210 is in the first position, the upper frame 120, the frame 100 and the corbel 210 together form two opposite accommodating spaces 140; when the corbel 210 is in the second position, an opening 150 is formed at the lower portion of the bracket 110. The upper frame 120, the bracket 110 and the corbel 210 can be made of square-tube-shaped materials, which have strong rigidity, welding and processing performance, and ensure the overall strength of the sling.

[0049] In some embodiments, a mounting groove 111 is provided at the lower end of the bracket 110, and the corbel 210 is extended in the horizontal direction. One end of the corbel 210 is located in the mounting groove 111 and is rotatably connected to the lower end of the bracket 110 through a rotating shaft 220 extending in the vertical direction. The corbel 210 rotates in the horizontal direction around the rotating shaft 220. A side groove wall 112 of the mounting groove 111 is located below the corbel 210 and is used to support the corbel 210, so that the corbel 210 can effectively support the bottom of the component.

[0050] refer to Figures 5 to 9 In some embodiments, the limiting component 300 includes a fixing member 310, a first movable member 320 and a first limiting member 330, one of the fixing member 310 and the first limiting member 330 is connected to the corbel 210, and the other is connected to the bracket 110, and one end of the first movable member 320 is rotatably connected to the first limiting member 330; when the corbel 210 is in the first position, the positions of the fixing member 310 and the first limiting member 330 correspond, and the first movable member 320 can rotate relative to the first limiting member 330 to cooperate with the fixing member 310 to limit the rotation of the corbel 210, thereby ensuring stable support for the hoisting components. The limiting component 300 has a simple structure and is easy to operate.

[0051] The fixing member 310 may include two spaced limiting plates, with a limiting groove 350 formed between the two limiting plates. One end of the first movable member 320 may be hingedly connected to the first limiting member 330, and the other end may be inserted into the limiting groove 350 to achieve mechanical limiting and anti-rotation, with reliable limiting and convenient operation. Through holes may be correspondingly provided on the limiting plates and the first movable member 320, and a locking pin 360 may be inserted into the through hole to prevent the first movable member 320 from being separated from the limiting groove 350, further ensuring the stability and reliability of the limiting cooperation between the fixing member 310 and the first movable member 320.

[0052] In some embodiments, the limiting component 300 may further include a second movable member 370 and a second limiting member 340. The second limiting member 340 is connected to the bracket 110 or the corbel 210 connected to the first limiting member 330. The second limiting member 340 and the first limiting member 330 are arranged at intervals in the horizontal direction. When the corbel 210 is in the second position, the positions of the fixing member 310 and the second limiting member 340 correspond to each other. The second movable member 370 can rotate relative to the second limiting member 340 and cooperate with the fixing member 310 to limit the rotation of the corbel 210. Thus, when the corbel 210 is in the second position, the position of the corbel 210 can be fixed, avoiding the corbel 210 from shaking during the transfer of the spreader, and further improving the stability of the overall structure of the spreader.

[0053] The structure of the second limiting member 340 can be the same as that of the first limiting member 330. The two can be arranged at an interval of 90° in the horizontal direction. That is to say, the rotation direction angles of the movable members of the two are 90°. Therefore, the corbel 210 can reach the second position by rotating 90° in the horizontal direction from the first position, making the second limiting member 340 correspond to the fixing member 310, and then rotating 90° in the reverse direction to reach the first position, making the first limiting member 330 correspond to the fixing member 310.

[0054] Reference Figure 5 , in some embodiments, a leveling device 230 is connected to at least one corbel 210 in each corbel assembly. The leveling device 230 can be driven to adjust its position relative to the corbel 210 in the up and down direction, and is used to abut against the bottom of the member above the corbel 210. The up and down movement of the leveling device 230 can adjust the height and abut against the bottom of the member, which is suitable for leveling the member with an uneven bottom, reducing shaking, and thus can be applicable to the member with an uneven bottom structure, improving the applicability of the spreader.

[0055] Among them, the leveling device 230 can be a screw structure. The leveling device 230 passes through an installation hole provided on the corbel 210 and penetrating in the up and down direction, and is connected to the corbel 210 by means of threaded connection, and the height adjustment of the leveling device 230 is realized by rotation. As an example, the leveling device 230 can adopt a TR25 coarse-thread bolt, which can be quickly screwed up and down.

[0056] In some embodiments, on the bracket 210 connected with the leveling device 230: the bracket 210 is provided with a waist-shaped hole 250, the length direction of the waist-shaped hole 250 is consistent with the extending direction of the bracket 210, the waist-shaped hole 250 penetrates through both sides of the bracket 210 in the up-and-down direction, the leveling device 230 is inserted into the waist-shaped hole 250 and can move in the waist-shaped hole 250 to adjust the position in the horizontal direction. Thus, the leveling device 230 can also adjust the position in the horizontal direction, improving the adjustment range, and can adjust the horizontal position and height of the leveling device 230 according to the structure at the bottom of the component, further improving the applicability of the sling in the embodiments of the present utility model.

[0057] In some embodiments, a leveling device 230 can be arranged on each bracket 210. Thus, the uneven positions at the bottom of the component can be supported by the leveling device 230 on each bracket 210.

[0058] As an example, when the sling in the embodiments of the present application is in use, the following operations can be performed for hoisting the bay window component:

[0059] For the bay window component with a flat bottom:

[0060] Step 1: Place the sling flat on the ground as a whole, use the gantry crane to connect the four lifting lugs 130 on the top surface of the frame body 100 through the chain hook, and lock the buckle safety bolt.

[0061] Step 2: Slowly lift the sling by the gantry crane, move to directly below the bay window component, and check that the four brackets 210 of the sling are in the second position, symmetrically parallel in the relative length direction, and the movable plate of the limit component 300 is located in the limit groove 350 of the second limiting member 340;

[0062] Step 3: Control the gantry crane to slowly lower so that the bay window component enters between the brackets 110. Lower to the height where a person stands and touches the bracket 210. Rotate the first movable member 320 upwards by 135° to disengage from the limit groove 350 of the second limiting member 340, making the bracket 210 in a loose state. Manually rotate the bracket 210 by 90°. The bracket 210 reaches the first position, symmetrically parallel in the width direction. Rotate the first movable member 320 into the limit groove 350 of the first limiting member 330 for fixation. Control the gantry crane to slowly rise, and at the same time observe whether the sling swings along the central axis of the bay window component.

[0063] Step 3: Hoist the bay window component to the designated position.

[0064] Step 4: Rotate the first movable part 320 upwards by 135° to disengage from the limiting groove 350 of the first limiting part 330, so that the bracket 210 is in a loose state. Manually rotate the bracket 210 by 90°, and the bracket 210 reaches the second position, symmetrically parallel in the relative length direction, and the rotating movable plate is fixed in the limiting groove 350 of the second limiting part 340; control the gantry crane to slowly move upwards and disengage from the top of the bay window component.

[0065] If it is necessary to continue lifting the next bay window component, repeat the above steps 2-4.

[0066] For bay window components with a non-planar bottom

[0067] Step 1: Place the sling flat on the ground as a whole, and use the gantry crane to connect the four lifting lugs 130 on the top surface of the frame 100 through the chain hook, and lock the buckle safety bolt.

[0068] Step 2: Use the gantry crane to slowly lift the sling, move to directly below the bay window component, and check that the four brackets 210 of the sling are in the second position, symmetrically parallel in the relative length direction, and the movable plate of the limiting assembly 300 is located in the limiting groove 350 of the second limiting part 340;

[0069] Step 3: According to the concave and convex height of the bottom surface of the bay window component, use the leveling device 230 to level the height and adjust it in advance by actual measurement.

[0070] Step 4: Control the gantry crane to slowly lower so that the bay window component enters between the brackets 110, and lower it to the height where a person stands and touches the bracket 210. Rotate the first movable part 320 upwards by 135° to disengage from the limiting groove 350 of the second limiting part 340, so that the bracket 210 is in a loose state. Manually rotate the bracket 210 by 90°, and the bracket 210 reaches the first position, symmetrically parallel in the width direction. Rotate the first movable part 320 into the limiting groove 350 of the first limiting part 330 and fix it. Control the gantry crane to slowly move upwards, and at the same time observe whether the sling swings on the central axis of the bay window component.

[0071] Step 5: Lift the bay window component to the designated position.

[0072] If it is necessary to continue lifting the next bay window component, repeat the above steps 2-5.

[0073] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention. In addition, without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

Claims

1. A lifting device, characterized in that, Comprising: Frame body; Support structure, rotatably connected to the lower end of the frame body, the support structure can rotate relative to the frame body to a first position or a second position. In the first position, the support structure and the frame body form a receiving space for receiving the component to be lifted, the support structure is used to support the bottom of the component. In the second position, the support structure and the frame body form an opening for the component to enter and exit the receiving space; Limit component, arranged between the support structure and the frame body, used to fix the relative position of the support structure and the frame body at least in the first position.

2. The spreader according to claim 1, characterized in that, The frame body includes two sets of downwardly extending support assemblies, each set of support assemblies includes two supports arranged at intervals; the support structure includes two sets of bracket assemblies, each set of bracket assemblies includes two brackets; each support is rotatably connected with a bracket, the bracket can rotate relative to the support about the vertical axis to the first position or the second position, and a limit component is arranged between each bracket and each support, used to fix the relative position of the bracket and the support at least in the first position.

3. The spreader according to claim 2, characterized in that, An installation groove is provided at the lower end of the support, the bracket extends horizontally, one end of the bracket is located in the installation groove and is rotatably connected to the lower end of the support through a vertically extending rotating shaft, the bracket rotates about the rotating shaft in the horizontal direction, and one side wall of the installation groove is located below the bracket for supporting the bracket.

4. The spreader according to claim 2, characterized in that, The limit component includes a fixing member, a first movable member and a first limiting member, one of the fixing member and the first limiting member is connected to the bracket, and the other is connected to the support; one end of the first movable member is rotatably connected to the first limiting member; in the state where the bracket is in the first position, the positions of the fixing member and the first limiting member correspond to each other, and the first movable member rotates relative to the first limiting member and can cooperate with the fixing member to limit the rotation of the bracket.

5. The spreader according to claim 4, characterized in that The limit component further includes a second movable member and a second limiting member, the second limiting member is connected to the support or the bracket connected to the first limiting member, and the second limiting member and the first limiting member are arranged at intervals in the horizontal direction; one end of the first movable member is rotatably connected to the first limiting member; in the state where the bracket is in the second position, the positions of the fixing member and the second limiting member correspond to each other, and the second movable member rotates relative to the second limiting member and can cooperate with the fixing member to limit the rotation of the bracket.

6. The spreader according to claim 2, characterized in that, At least one bracket in each bracket assembly is connected with a leveling device, the leveling device can be driven to adjust its position in the up and down direction relative to the bracket, and is used to abut against the bottom of the component above the bracket.

7. The spreader according to claim 6, wherein, On the bracket connected with the leveling device: the bracket is provided with a waist-shaped hole, the length direction of the waist-shaped hole is consistent with the extending direction of the bracket; the leveling device passes through the waist-shaped hole and can move in the waist-shaped hole to adjust its position in the horizontal direction.

8. The spreader according to claim 2, wherein, The frame body further includes an upper frame, and the bracket is fixedly connected to the upper frame; when the bracket is in the first position, the upper frame, the frame body and the bracket enclose two opposite accommodating spaces; When the bracket is in the second position, an opening is formed at the lower part of the bracket.

9. The spreader according to claim 1, characterized in that, A protective pad is connected to the top of the support structure.

10. The spreader according to claim 1, characterized in that, Lifting lugs are respectively connected to the four corners of the top of the frame body along the horizontal direction, lifting holes are respectively provided on each lifting lug, and the directions of the lifting holes of adjacent lifting lugs intersect.

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