A sling device and hoisting apparatus

Abstract

The utility model discloses a kind of lifting appliance and hoisting equipment, it is related to engineering machinery technical field.Lifting main body and at least two jaw assemblies;Jaw assembly is distributed along the circumference of lifting main body, and one end of jaw assembly is movably arranged between first position and second position along the height direction of lifting main body, and the other end is rotatably arranged in lifting main body.The lifting appliance provided in the application can effectively increase the clamping force, compared with the simple magnetic attraction mode, the situation that circular support is dropped due to the reduction of magnetic attraction area can be effectively avoided.In addition, the lifting appliance in the application can also be applicable to other shapes of materials.In addition, during the process of lifting lifting main body, jaw assembly can be moved to first position along lifting main body under the action of gravity, to realize automatic clamping during lifting.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and more specifically, to a lifting device. Furthermore, this utility model also relates to a lifting equipment including the aforementioned lifting device. Background Technology

[0002] In the assembly of circular supports, hoisting methods are required to carry out riveting and welding operations. Existing hoisting tools generally use magnetic hoisting tools to perform hoisting operations on circular supports.

[0003] Because of the through hole at the center of the circular support, the contact area between the magnetic lifting device and the circular support is significantly reduced, resulting in a substantial decrease in the holding force of the magnetic lifting device. Alternatively, if the circular support is heavy, the holding force of the magnetic lifting device may not be sufficient. Especially during lifting operations, if the side of the circular support is subjected to impact or other external forces, it can easily lead to serious safety accidents, posing a direct threat to the safety of production personnel and presenting a significant safety hazard.

[0004] In summary, how to provide a lifting device that can lift circular supports and improve the safety of the lifting process is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a lifting device that can be used for lifting circular supports.

[0006] Another objective of this invention is to provide a lifting device that includes the aforementioned lifting apparatus.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A lifting device, comprising:

[0009] The main lifting body is equipped with lifting rings for connecting to lifting tools;

[0010] At least two gripper assemblies are provided, the gripper assemblies are distributed circumferentially along the hoisting body, and one end of the gripper assembly is movable between a first position and a second position along the height direction of the hoisting body, and the other end is rotatably disposed on the hoisting body.

[0011] When the gripper assembly moves along the hoisting body to the first position, at least two of the gripper assemblies are in a clamping state;

[0012] When the gripper assembly moves along the hoisting body to the second position, at least two of the gripper assemblies are in the open state;

[0013] The first position is positioned at a lower height than the second position on the hoisting body.

[0014] Optionally, it also includes a sliding seat and a base. The hoisting body is a rod-shaped structure. The sliding seat is sleeved on the outer periphery of the hoisting body, and the sliding seat is slidably disposed between the first position and the second position along the axial direction of the hoisting body. The base is fixed to the hoisting body, and the base is located below the sliding seat.

[0015] One end of the gripper assembly is rotatably connected to the sliding seat, and the other end of the gripper assembly is rotatably connected to the base.

[0016] Optionally, the gripper assembly includes:

[0017] A first connecting rod, one end of which is rotatably connected to the outer periphery of the sliding seat, and the other end of which is provided with a gripper;

[0018] The second link has one end rotatably connected to the outer periphery of the base, and the other end rotatably connected to the end of the first link near the gripper in a non-end position.

[0019] Optionally, the surface of the hoisting body that contacts the sliding seat is a smooth surface. When the hoisting body is in a hoisting state, the sliding seat slides downward relative to the hoisting body under the action of gravity.

[0020] Optionally, a handle protrudes from the outer side of the first connecting rod.

[0021] Optionally, the gripper has a bend toward the inside of the first connecting rod, the bend being provided with a support surface for contacting the material to be lifted.

[0022] Optionally, the supporting surface is provided with a first magnetic attraction structure, which is used to attract the material to be lifted.

[0023] Optionally, it also includes a limiting hole, a limiting pin for engaging with the limiting hole, a connecting rope for fixing the limiting pin on the sliding seat, and a receiving groove for placing the limiting pin on the gripper assembly or the sliding seat.

[0024] When the limiting pin is inserted into the limiting hole and the lower surface of the sliding seat contacts the limiting pin, the gripper assembly is in the second position.

[0025] Optionally, the bottom of the hoisting body is provided with a retractable telescopic component and a second magnetic attraction structure located at the bottom of the telescopic component. The second magnetic attraction structure is used to attract the top of the material to be hoisted.

[0026] A lifting device, characterized in that it includes a hook and a lifting device as described in any one of the above claims, wherein the hook is used to engage with a lifting ring in the lifting device.

[0027] In practical use, the lifting device provided by this utility model first connects the lifting ring to the lifting tool. Then, the gripper assembly is moved along the lifting body to a second position, so that at least two gripper assemblies are in an open state. The lifting tool is then moved so that the open gripper assemblies align with the material to be lifted, until the gripper assemblies move to the clamping position. Next, the gripper assembly is moved along the lifting body to a first position, so that at least two gripper assemblies are in a clamping state, thereby clamping the material to be lifted.

[0028] The lifting device provided in this application clamps the material to be lifted using a gripper assembly, which effectively increases the clamping force. For circular supports with a central hole, the lifting device clamps the circular support using grippers, which, compared to simple magnetic attraction, effectively prevents the circular support from falling due to a reduction in the magnetic attraction area. Furthermore, the lifting device in this application can also be applied to materials of other shapes, as long as the material can be clamped during the lifting process. In addition, since the first position is positioned at a lower height than the second position on the lifting body, during actual use, the gripper assembly can move along the lifting body to the first position under gravity, achieving automatic clamping during the lifting process.

[0029] In addition, this application also provides a lifting device including the above-mentioned lifting device. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 This is a structural schematic diagram of a specific embodiment of the lifting device provided by this utility model.

[0032] Figure 2 This is a front view schematic diagram of the circular support applicable to the lifting device provided by this utility model.

[0033] Figure 3 for Figure 2 Axial view of the medium circular support.

[0034] Figure 4 This is a schematic diagram of the structure of one of the grippers in the lifting device provided by this utility model.

[0035] Figure 5 for Figure 4 Diagram showing the connection between the middle gripper and the base.

[0036] Figure 6 This is a structural diagram of the hoisting body with its base installed.

[0037] Figure 7 for Figure 4 A schematic diagram of the structure in which the middle clamp is installed on the hoisting body via a sliding seat.

[0038] Figure 8 This is a structural diagram of the hoisting body equipped with lifting rings.

[0039] Figure 9 This is a schematic diagram showing the structure of the limiting pin located inside the limiting hole.

[0040] Figure 10 This is a schematic diagram of the lifting device with the heavy gripper assembly in the open state provided by this utility model.

[0041] Figure 11 This is a schematic diagram of the lifting device's heavy-duty gripper assembly in a clamped state, provided by this utility model.

[0042] Figure 12 This is a schematic diagram of the lifting device provided by this utility model for clamping materials.

[0043] Figures 1-12 middle:

[0044] 01-Material, 02-Gripper assembly, 1-First connecting rod, 11-Handle, 12-Bend, 121-Supporting surface, 2-Second connecting rod, 3-Base, 4-Sliding seat, 5-Lifting body, 51-Limiting hole, 6-Lifting ring, 7-Limiting pin. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] The core of this utility model is to provide a lifting device that can be used for lifting circular supports.

[0047] Another core aspect of this utility model is to provide a lifting device that includes the aforementioned lifting device.

[0048] This specific embodiment discloses a lifting device, including a lifting body 5 and at least two gripper assemblies 02; the lifting body 5 is provided with a lifting ring 6 for connecting with a lifting tool; the gripper assemblies 02 are distributed circumferentially along the lifting body 5, and one end of the gripper assembly 02 is movably disposed between a first position and a second position along the height direction of the lifting body 5, while the other end is rotatably disposed on the lifting body 5; when the gripper assembly 02 moves along the lifting body 5 to the first position, at least two gripper assemblies 02 are in a clamped state; when the gripper assembly 02 moves along the lifting body 5 to the second position, at least two gripper assemblies 02 are in an open state; the setting height of the first position on the lifting body 5 is lower than the setting height of the second position on the lifting body 5.

[0049] It should be noted that at least two gripper assemblies 02 can be evenly distributed along the circumference of the lifting body 5, which facilitates the clamping of the material 01 to be lifted.

[0050] Specifically, the gripper assembly 02 can be configured as a linkage structure, and the rotation angle of the linkage can be used to switch the gripper assembly 02 between the clamping state and the opening state. Of course, the gripper assembly 02 can also be configured as a movable gripper structure, and the switching between the clamping state and the opening state can be achieved by adjusting the moving position of the gripper. Alternatively, the gripper assembly 02 can also be configured as other structures that meet the requirements, depending on the actual situation, which will not be elaborated here.

[0051] The lifting device in this specific embodiment can be applied to Figure 2 , Figure 3 The clamping device with a stepped circular support in the middle, in actual use, clamps the lower part of the step by clamping the material, thus achieving clamping. At the same time, the step also prevents the circular support from accidentally falling off during the clamping process. Of course, the lifting device in this specific embodiment can also be applied to clamping square, prismatic, or other irregularly shaped materials 01. Specifically, the outer periphery of the material 01 to be clamped can be provided with a step or a clamping recess for cooperating with the gripper assembly 02, as long as it can achieve the clamping of the material 01.

[0052] In this specific embodiment, the first position is not a single fixed position. It changes according to the size of the material 01. Therefore, the first position refers to the position where the gripper assembly 02 clamps the material 01, and can be multiple different positions. The second position is the position of the gripper assembly 02 on the lifting body 5 when it is in its fully open state.

[0053] In actual use, the lifting device provided in this specific embodiment first connects the lifting ring 6 to the lifting tool. Then, the gripper assembly 02 is moved along the lifting body 5 to the second position, so that at least two gripper assemblies 02 are in an open state. The lifting tool is then moved so that the open gripper assemblies 02 correspond to the material 01 to be lifted, until the gripper assemblies 02 move to the clamping position. Next, the gripper assemblies 02 are moved along the lifting body 5 to the first position, so that at least two gripper assemblies 02 are in a clamping state, thereby clamping the material 01 to be lifted.

[0054] The lifting device provided in this application clamps the material 01 to be lifted using the gripper assembly 02, which effectively increases the clamping force. For circular supports with a central hole, the lifting device clamps the circular support using the grippers, which effectively prevents the circular support from falling due to the reduced magnetic area compared to a simple magnetic attraction method. Furthermore, the lifting device in this application can also be applied to materials 01 of other shapes, as long as the material 01 can be clamped during the lifting process. In addition, since the first position is positioned at a lower height than the second position on the lifting body 5, the gripper assembly 02 can move along the lifting body 5 to the first position under gravity during the lifting process, achieving automatic clamping during the lifting process.

[0055] In one specific embodiment, such as Figure 1 As shown, the lifting device also includes a sliding seat 4 and a base 3. The lifting body 5 is a rod-shaped structure. The sliding seat 4 is sleeved on the outer periphery of the lifting body 5, and the sliding seat 4 can slide between a first position and a second position along the axial direction of the lifting body 5. The base 3 is fixed to the lifting body 5 and is located on the lower side of the sliding seat 4. One end of the gripper assembly 02 is rotatably connected to the sliding seat 4, and the other end of the gripper assembly 02 is rotatably connected to the base 3.

[0056] In actual use, when the sliding seat 4 moves along the hoisting body 5 to the first position, the gripper assembly 02 rotates downward around the axis at the position where it is rotatably connected to the sliding seat 4, and the gripper assembly 02 rotates downward around the axis at the position where it is rotatably connected to the base 3, until the gripper assembly 02 is in a clamping state; when it is necessary to clamp the material 01, the sliding seat 4 moves along the hoisting body 5 to the second position, and the gripper assembly 02 is in an open state, so that the material 01 can enter the clamping area of ​​the gripper assembly 02.

[0057] In this specific embodiment, by providing a sliding seat 4, the gripper assembly 02 can be easily moved along the axial direction of the hoisting body 5, and as... Figure 7As described above, the outer periphery of the sliding seat 4 is provided with a first hinge seat for easy hinge connection with the gripper assembly 02, facilitating a rotatable connection with the gripper assembly 02. Furthermore, in this specific embodiment, the base 3 can fix the other end of the gripper assembly 02 at the rotatable connection position with the lifting body 5, and as... Figure 5 As shown, the outer periphery of the base 3 is provided with a second hinge seat for easy hinge connection with the gripper assembly 02, which facilitates the rotational connection with the gripper assembly 02.

[0058] Based on the above embodiments, the gripper assembly 02 can include a first link 1 and a second link 2. One end of the first link 1 is rotatably connected to the outer periphery of the sliding seat 4, and the other end of the first link 1 is provided with a gripper. One end of the second link 2 is rotatably connected to the outer periphery of the base 3, and the other end of the second link 2 is rotatably connected to the end of the first link 1 near the gripper in the non-end position.

[0059] like Figure 4 As shown, a third hinge seat is provided at the non-end position on the inner side of the first connecting rod 1, and one end of the second connecting rod 2 is rotatably connected to the third hinge seat. The axial directions of the pin connecting the third hinge seat and the second connecting rod 2, the axial direction of the pin connecting the second hinge seat and the second connecting rod 2, and the axial direction of the pin connecting the first hinge seat and the first connecting rod 1 are parallel to each other.

[0060] In actual use, such as Figure 10 As shown, when the sliding seat 4 slides relative to the lifting body 5 to the second position, the gripper assembly 02 is in the open state; when it is necessary to clamp the material 01, the sliding seat 4 is controlled to move from the second position to the first position. During the movement, the end of the first connecting rod 1 that is rotatably connected to the sliding seat 4 rotates downward, and the end of the second connecting rod 2 that is connected to the base 3 rotates downward until it rotates to the first position. Figure 11 At the position shown, the gripper assembly 02 is in a clamping state, which can clamp the material 01.

[0061] In this specific embodiment, by setting the gripper assembly 02 as a linkage structure, the structure of the gripper assembly 02 is simple and easy to assemble. During the lifting process, the sliding seat 4 can slide along the lifting body 5 to the first position by relying on gravity, thereby realizing automatic clamping during the lifting process.

[0062] Based on the above embodiments, the surface of the hoisting body 5 that contacts the sliding seat 4 can be made smooth. When the hoisting body 5 is in the hoisting state, the sliding seat 4 slides down relative to the hoisting body 5 under the action of gravity, thereby achieving automatic clamping during the hoisting process.

[0063] like Figure 11As shown, a handle 11 protrudes from the outer side of the first connecting rod 1. In actual use, the position of the first connecting rod 1 relative to the hoisting body 5 and the rotation angle of the first connecting rod 1 can be adjusted by operating the handle 11.

[0064] like Figure 10 As shown, the gripper has a bend 12 facing the inside of the first link 1, and the bend 12 is provided with a support surface 121 for contacting the material 01 to be lifted.

[0065] In actual use, such as Figure 12 As shown, when the gripper assembly 02 is in the clamping state, the supporting surface 121 contacts the step on the outer periphery of the material 01, which can be used to support the material 01 and at the same time prevent the material 01 from falling accidentally.

[0066] Furthermore, a first magnetic attraction structure can be embedded in the support surface 121. The first magnetic attraction structure is used to attract the material 01 to be lifted, further increasing the clamping force between the gripper assembly 02 and the material 01 in the clamping state.

[0067] In one specific embodiment, the lifting device further includes a limiting hole 51, a limiting pin 7 for engaging with the limiting hole 51, a connecting rope for fixing the limiting pin 7 on the sliding seat 4, and a receiving groove for placing the limiting pin 7 on the gripper assembly 02 or the sliding seat 4. When the limiting pin 7 is inserted into the limiting hole 51 and the lower surface of the sliding seat 4 contacts the limiting pin 7, the gripper assembly 02 is in the second position.

[0068] like Figure 1 As shown, when the gripper assembly 02 is in the open state, the limiting pin 7 can be inserted into the limiting hole 51 to keep the gripper assembly 02 in the open state and prevent the gripper assembly 02 from sliding to the first position relative to the hoisting body 5 due to gravity during the movement.

[0069] In one specific embodiment, the bottom of the hoisting body 5 is provided with a retractable telescopic member and a second magnetic attraction structure located at the bottom of the telescopic member. The second magnetic attraction structure is used to attract the top of the material 01 to be hoisted.

[0070] In actual use, after the gripper assembly 02 clamps the material 01, the telescopic component can be controlled to extend downwards until the second magnetic attraction structure attracts the top of the material 01 to be lifted. By clamping and attracting the material 01 through the dual action of the gripper assembly 02 and the second magnetic attraction structure, the stability of the material 01 during the lifting process can be effectively improved.

[0071] In addition to the aforementioned lifting device, this utility model also provides a lifting equipment including the lifting device disclosed in the above embodiments. The lifting equipment includes a hook for engaging with the lifting ring 6 in the lifting device. The structure of other parts of this lifting equipment is described in the prior art and will not be repeated here.

[0072] The terms "first" and "second" in the first and second positions, the first magnetic structure and the second magnetic structure, the first hinge seat, the second hinge seat and the third hinge seat, the first link 1 and the second link 2 mentioned in this application are only for distinguishing different positions and do not indicate any order.

[0073] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Any combination of all embodiments provided by this utility model is within the protection scope of this utility model and will not be elaborated upon here.

[0074] The lifting device and hoisting equipment provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A lifting device, characterized in that, include: The hoisting body (5) is equipped with lifting rings (6) for connecting with hoisting tools. At least two gripper assemblies (02) are distributed around the circumference of the hoisting body (5), and one end of the gripper assembly (02) is movable between a first position and a second position along the height direction of the hoisting body (5), and the other end is rotatably disposed on the hoisting body (5). When the gripper assembly (02) moves along the hoisting body (5) to the first position, at least two of the gripper assemblies (02) are in a clamping state; When the gripper assembly (02) moves along the hoisting body (5) to the second position, at least two of the gripper assemblies (02) are in an open state; The first position is positioned at a lower height than the second position on the hoisting body (5).

2. The lifting device according to claim 1, characterized in that, It also includes a sliding seat (4) and a base (3). The hoisting body (5) is a rod-shaped structure. The sliding seat (4) is sleeved on the outer periphery of the hoisting body (5), and the sliding seat (4) can slide between the first position and the second position along the axial direction of the hoisting body (5). The base (3) is fixed to the hoisting body (5), and the base (3) is located on the lower side of the sliding seat (4). One end of the gripper assembly (02) is rotatably connected to the sliding seat (4), and the other end of the gripper assembly (02) is rotatably connected to the base (3).

3. The lifting device according to claim 2, characterized in that, The gripper assembly (02) includes: The first connecting rod (1) has one end rotatably connected to the outer periphery of the sliding seat (4), and the other end of the first connecting rod (1) is provided with a gripper. The second link (2) has one end rotatably connected to the outer periphery of the base (3) and the other end rotatably connected to the end of the first link (1) near the gripper in a non-end position.

4. The lifting device according to claim 3, characterized in that, The surface of the hoisting body (5) that is in contact with the sliding seat (4) is a smooth surface. When the hoisting body (5) is in the hoisting state, the sliding seat (4) slides downward relative to the hoisting body (5) under the action of gravity.

5. The lifting device according to claim 3, characterized in that, A handle (11) is provided on the outer side of the first connecting rod (1).

6. The lifting device according to claim 3, characterized in that, The gripper has a bend (12) toward the inside of the first link (1), and the bend (12) is provided with a support surface (121) for contacting the material (01) to be lifted.

7. The lifting device according to claim 6, characterized in that, The supporting surface (121) is provided with a first magnetic attraction structure, which is used to attract the material (01) to be lifted.

8. The lifting device according to any one of claims 2-7, characterized in that, It also includes a limiting hole (51) and a limiting pin (7) for cooperating with the limiting hole (51). The sliding seat (4) is provided with a connecting rope for fixing the limiting pin (7). The gripper assembly (02) or the sliding seat (4) is provided with a receiving groove for placing the limiting pin (7). When the limiting pin (7) is inserted into the limiting hole (51) and the lower surface of the sliding seat (4) contacts the limiting pin (7), the gripper assembly (02) is in the second position.

9. The lifting device according to any one of claims 1-7, characterized in that, The bottom of the hoisting body (5) is provided with a retractable telescopic component and a second magnetic attraction structure located at the bottom of the telescopic component. The second magnetic attraction structure is used to attract the top of the material (01) to be hoisted.

10. A hoisting device, characterized in that, Includes a hook and a lifting device according to any one of claims 1-9, wherein the hook is used to engage with a lifting ring (6) in the lifting device.

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