A lifting fixture

Abstract

The present invention belongs to the technical field of hoisting equipment, and discloses a hoisting fixture, which includes a hoisting beam, a clamping assembly, and a lifting rope. The hoisting beam is configured to be connected to the hoisting equipment, and a first hook portion is provided at the bottom of the hoisting beam; two clamping assemblies are respectively connected to the two ends of the hoisting beam, and the clamping assembly includes a first clamping member and a second clamping member, one end of the first clamping member and the second clamping member are respectively connected to the hoisting beam, and the other ends of the first clamping member and the second clamping member can be connected to each other; the two ends of the lifting rope are respectively connected to the first clamping member and the second clamping member, and the lifting rope can be hooked to the first hook portion. The lifting rope is also configured to be connected to the hoisting equipment to pull the butt ends of the first clamping member and the second clamping member away from each other. The hoisting fixture can use the hoisting equipment to achieve unhooking and hooking, without the need for manual operation by the operator, thereby improving production safety, reducing the use of wire ropes, and reducing the cost of use.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting equipment, in particular to a hoisting clamp. Background Art

[0002] Rebar, also known as ribbed steel bars, is a type of steel bar with ribbed surfaces. It typically has two longitudinal ribs and transverse ribs evenly distributed along its length. Ribbed steel bars primarily withstand tensile stresses in concrete. The ribs provide a strong bond with concrete, allowing them to better withstand external forces. Ribbed steel bars are widely used in various building structures, particularly large, heavy, lightweight, thin-walled, and high-rise structures.

[0003] During the handling of rebar, it is necessary to use a lifting device to move the rebar. In some existing workshops that lack the equipment for retrofitting magnetic lifting equipment, bundled rebar is typically transported using wire ropes or chains. Before lifting, operators must first attach one end of the wire rope to the overhead crane boom, then pass the other end through the bottom of the rebar and attach it to the overhead crane boom. The crane is then activated to lift the rebar up for transport. Once the rebar has been hoisted to the designated location, operators must untie the wire rope from one end of the boom, leaving one end still attached. The crane then activates the crane to extract the rope, allowing the rebar to be placed on the ground or at a designated location. However, manual untying and attaching of the rope is highly dangerous and can easily injure the operator. Furthermore, due to the rough surface of the rebar, friction between the rebar and the rope during lifting and extraction causes significant wear and tear on the rope, significantly increasing operating costs. Summary of the Invention

[0004] The object of the present invention is to provide a lifting clamp which can realize automatic unhooking and hooking to improve production safety, reduce the use of steel wire ropes and reduce the use cost.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A lifting fixture, comprising:

[0007] A hoisting beam is configured to be connected to a hoisting device, and a first hook portion is provided at the bottom of the hoisting beam;

[0008] A clamping assembly, wherein the two clamping assemblies are respectively connected to the two ends of the hoisting beam, and the clamping assembly includes a first clamping member and a second clamping member, one end of the first clamping member and the second clamping member are respectively connected to the hoisting beam, and the other ends of the first clamping member and the second clamping member can be butted against each other;

[0009] A lifting rope, wherein both ends of the lifting rope are respectively connected to the first clamping member and the second clamping member, the lifting rope can be hooked on the first hooking portion, and the lifting rope is also configured to be connected to the lifting equipment to pull the docking ends of the first clamping member and the second clamping member away from each other.

[0010] Optionally, a connecting rod assembly is further included, and each of the clamping assemblies is connected to the lifting beam through a connecting rod assembly. The connecting rod assembly includes a first connecting rod and a second connecting rod, and one end of the first connecting rod and the second connecting rod are respectively hinged to the lifting beam, and the other end of the first connecting rod is hinged to the first clamping member, and the other end of the second connecting rod is hinged to the second clamping member. The first clamping member and the second clamping member are cross-arranged and hingedly connected at their intersection.

[0011] Optionally, it also includes a limit hook, a first cross beam and a second cross beam, the hinge points of the two first clamping members and the second clamping members are connected through the first cross beam, the second cross beam is connected between the two opposite connecting rods of the connecting rod assembly, the limit hook is rotatably connected to the second cross beam, and the limit hook is provided with a second hook portion, and the second hook portion can cooperate with the first cross beam to limit the opening angle of the first clamping member and the second clamping member.

[0012] Optionally, it also includes a limiting hook and a first crossbeam, the hinge points of the two first clamping members and the second clamping members are connected through the first crossbeam, the limiting hook is rotatably connected to the lifting beam, and the limiting hook is provided with a second hook portion, and the second hook portion can cooperate with the first crossbeam to limit the opening angle of the first clamping member and the second clamping member.

[0013] Optionally, a dehooking member is further included, which is connected to the first beam and is located below the limiting hook. The dehooking member can move toward the limiting hook to separate the second hooking portion from the first beam.

[0014] Optionally, it also includes a positioning member, a connecting member and a positioning frame, the positioning frame is connected to the first crossbeam, a through hole is opened on the positioning frame, the connecting member movably passes through the through hole, one end of the connecting member is threadedly connected to a first nut, the first nut can rest on the positioning frame, the other end of the connecting member is connected to the positioning member, and the unhooking member is connected to the connecting member.

[0015] Optionally, the first clamping member includes a first clamping body, a first supporting block and a first supporting member, one end of the first clamping body is rotatably connected to the hoisting beam, the first supporting member is rotatably connected to the other end of the first clamping body, the first supporting block is rotatably connected to the first clamping body, and the first supporting block is capable of abutting against the first supporting member;

[0016] The second clamping member includes a second clamping body, a second supporting block and a second supporting member. One end of the second clamping body is rotatably connected to the lifting beam, the second supporting member is rotatably connected to the other end of the second clamping body, the second supporting block is rotatably connected to the second clamping body, the second supporting block can abut against the second supporting member, and the second supporting member can dock with the first supporting member.

[0017] Optionally, the lifting rope includes a first lifting rope and a second lifting rope, one end of the first lifting rope is connected to the first clamping body, and the other end is connected to the second clamping body, one end of the second lifting rope is connected to the first supporting block, and the other end is connected to the second supporting block.

[0018] Optionally, the length of the first lifting rope is greater than the length of the second lifting rope.

[0019] Optionally, the first clamping member further includes a first limiting member, the first limiting member being connected to the first clamping body, and when the first supporting block rotates to abut against the first limiting member, the contact surface of the first supporting block and the first supporting member is perpendicular;

[0020] The second clamping member further includes a second limiting member connected to the second clamping body. When the second supporting block rotates to abut against the second limiting member, the contact surface of the second supporting block and the second supporting member is perpendicular.

[0021] Beneficial effects of the present invention:

[0022] The lifting fixture provided by the present invention has a lifting beam that can be connected to a lifting device so that the lifting fixture can be lifted by the lifting beam to transport materials. Two clamping assemblies are respectively connected to the two ends of the lifting beam, and the clamping assemblies include a first clamping member and a second clamping member. One end of the first clamping member and the second clamping member are respectively rotatably connected to the lifting beam, and the other ends of the first clamping member and the second clamping member can be docked with each other. In other words, by rotating the first clamping member and the second clamping member, the lifting fixture can be opened and closed, thereby clamping or releasing the material. A first hook portion is provided at the bottom of the lifting beam; the two ends of the lifting rope are respectively connected to the first clamping member and the second clamping member, and the lifting rope can be hooked on the first hook portion. The lifting rope can also be connected to the lifting device to pull the docking ends of the first clamping member and the second clamping member away from each other. It is understandable that after the lifting equipment transfers the lifting fixture and the material to the designated location, the lifting equipment is separated from the lifting beam, and then the lifting rope is hooked. In the process of pulling the lifting rope upward, the two ends of the lifting rope respectively pull the docking ends of the first clamping member and the second clamping member away from each other, thereby realizing the unloading operation of the material. After the unloading is completed, the lifting rope is hung on the first hook part by the lifting equipment, and finally the lifting equipment is connected to the lifting beam to transfer the lifting fixture. The lifting fixture in the present invention can use the lifting equipment to achieve unhooking and hooking, without the need for manual operation by the operator, thereby improving production safety, reducing the use of wire ropes, and reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without any creative work.

[0024] Figure 1 This is a structural schematic diagram of a lifting fixture provided by an embodiment of the present invention in a closed state from one perspective;

[0025] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;

[0026] Figure 3 1 is a structural diagram of a lifting fixture provided by an embodiment of the present invention in a closed state (with some structures hidden) from another perspective;

[0027] Figure 4 This is a structural diagram of the lifting fixture provided by an embodiment of the present invention in an open state;

[0028] Figure 5It is a side view of the lifting fixture provided by an embodiment of the present invention.

[0029] In the picture:

[0030] 1. Hoisting beam; 11. First hook hanging part;

[0031] 2. Clamping assembly; 21. First clamping member; 211. First clamping body; 212. First supporting block; 213. First supporting member; 214. First position-limiting member; 215. First rotating shaft; 22. Second clamping member; 221. Second clamping body; 222. Second supporting block; 223. Second supporting member; 224. Second position-limiting member; 225. Second rotating shaft;

[0032] 3. Lifting rope; 31. First lifting rope; 32. Second lifting rope;

[0033] 4. Connecting rod assembly; 41. First connecting rod; 42. Second connecting rod;

[0034] 51. Limiting hook; 511. Second hooking portion; 52. First crossbeam; 53. Second crossbeam;

[0035] 61. Positioning piece; 62. Decoupling piece; 63. Positioning frame; 64. Connecting piece;

[0036] 71. First horizontal bar; 72. Second horizontal bar. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0040] 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 defined or explained in subsequent drawings.

[0041] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0042] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0043] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0044] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0045] Example 1

[0046] In a hoisting workshop, hoisting equipment is usually required to transport materials. This embodiment provides a hoisting fixture that can automatically unhook and hook to improve production safety, reduce the use of wire ropes, and reduce usage costs. Specifically, Figure 1 As shown, the lifting fixture includes a lifting beam 1, a clamping assembly 2 and a lifting rope 3.

[0047] The hoisting beam 1 is configured to be connected to a lifting device so that an operator can lift the hoisting fixture through the hoisting beam 1 to transfer materials. Two clamping assemblies 2 are provided, and the two clamping assemblies 2 are respectively connected to the two ends of the hoisting beam 1. The clamping assemblies 2 include a first clamping member 21 and a second clamping member 22. One end of the first clamping member 21 and the second clamping member 22 are respectively connected to the hoisting beam 1, and the other ends of the first clamping member 21 and the second clamping member 22 can be connected to each other. In other words, by rotating the first clamping member 21 and the second clamping member 22, the hoisting fixture can be opened and closed, thereby clamping or releasing the material. A first hook portion 11 is provided at the bottom of the lifting beam 1; the two ends of the lifting rope 3 are respectively connected to the first clamping member 21 and the second clamping member 22. The lifting rope 3 can be hooked on the first hook portion 11. The lifting rope 3 can also be connected to the lifting equipment to pull the butt ends of the first clamping member 21 and the second clamping member 22 away from each other. It is understandable that after the lifting equipment transfers the lifting fixture and the material to the designated location, the lifting equipment is separated from the lifting beam 1, and then the lifting rope 3 is hooked. In the process of pulling the lifting rope 3 upward, the two ends of the lifting rope 3 respectively pull the butt ends of the first clamping member 21 and the second clamping member 22 away from each other, thereby realizing the material unloading operation. After the unloading is completed, the lifting rope 3 is hung on the first hook portion 11 by the lifting equipment, and finally the lifting equipment is connected to the lifting beam 1 to transfer the lifting fixture. The lifting fixture provided in this embodiment can achieve unhooking and hooking by using lifting equipment, eliminating the need for manual operation by operators, thereby improving production safety, reducing the use of wire ropes, and lowering usage costs.

[0048] For more details, see Figure 1 In this embodiment, the first hook portion 11 is a hook, which is rotatably connected to the lifting beam 1 via a first bolt. The hook of the lifting equipment can hook the lifting rope 3 out of the first hook portion 11 and can also hook the lifting rope 3 back onto the first hook portion 11. Of course, in other embodiments, the first hook portion 11 can also be a curved hook groove provided on the lifting beam 1, which can also play the role of hooking the lifting rope 3.

[0049] Alternatively, as Figure 1 、 Figure 3-Figure 5 As shown, the lifting fixture also includes a connecting rod assembly 4, and the two ends of the lifting beam 1 are respectively connected to the connecting rod assembly 4. Each clamping assembly 2 is connected to the lifting beam 1 through a connecting rod assembly 4. The connecting rod assembly 4 includes a first connecting rod 41 and a second connecting rod 42. One end of the first connecting rod 41 and the second connecting rod 42 are respectively hinged to the lifting beam 1, the other end of the first connecting rod 41 is hinged to the first clamping member 21, and the other end of the second connecting rod 42 is hinged to the second clamping member 22. The first clamping member 21 and the second clamping member 22 are arranged crosswise and hinged at their intersection. For details, see Figure 5 The first clamping member 21 and the second clamping member 22 can rotate about their hinge point to open or close the lifting fixture. Simultaneously, if the hinge point of the first clamping member 21 and the second clamping member 22 is moved toward the lifting beam 1, the respective rotations of the first connecting rod 41, the second connecting rod 42, the first clamping member 21, and the second clamping member 22 can also move the butted ends of the first clamping member 21 and the second clamping member 22 away from each other, thereby opening the lifting fixture.

[0050] Alternatively, as Figure 1-Figure 3 As shown, in this embodiment, the lifting fixture further includes a limit hook 51, a first crossbeam 52, and a second crossbeam 53. The hinge points of the two first clamping members 21 and the second clamping members 22 are connected through the first crossbeam 52. That is, the first crossbeam 52 is parallel to the lifting crossbeam 1 and is spaced apart. The first crossbeam 52 connects the two clamping assemblies 2, thereby improving the overall stability and reliability of the lifting fixture. The second crossbeam 53 is connected between the two opposite connecting rods of the connecting rod assembly 4. The limit hook 51 is rotatably connected to the second crossbeam 53. The limit hook 51 is provided with a second hook portion 511. The second hook portion 511 can cooperate with the first crossbeam 52 to limit the opening angle of the first clamping member 21 and the second clamping member 22. It is understood that when the first clamping member 21 and the second clamping member 22 rotate relative to each other, the first connecting rod 41 and the second connecting rod 42 will also rotate accordingly. The second crossbeam 53 is connected between the two opposite connecting rods of the connecting rod assembly 4 (i.e., between the two connecting rods in the same direction, which can be between the two first connecting rods 41 and the two second connecting rods 42. If the first connecting rod 41 and the second connecting rod 42 are arranged crosswise, it can also be between the first connecting rod 41 at one end and the second connecting rod 42 at the other end). The distance between the first crossbeam 52 and the second crossbeam 53 will change. The limit hook 51 is rotatably connected to the second crossbeam 53, and the limit hook 51 is provided with a second hook portion 511. When the distance between the first crossbeam 52 and the second crossbeam 53 reaches a specified position, the second hook portion 511 hooks the first crossbeam 52 to fix the distance between the first crossbeam 52 and the second crossbeam 53, and the angle between the first clamping member 21 and the second clamping member 22 is also fixed.

[0051] Alternatively, as Figure 3As shown, the lifting fixture also includes a decoupling member 62, which is connected to the first crossbeam 52 and is located below the limit hook 51. When the decoupling member 62 moves toward the limit hook 51, the decoupling member 62 can push the second hook portion 511 open, so that it is separated from the first crossbeam 52. In this embodiment, an inclined surface is provided below the second hook portion 511 of the limit hook 51, and the inclined surface abuts against the side wall of the first crossbeam 52. The decoupling member 62 is a decoupling rod and is parallel to the axis of the first crossbeam 52. When the decoupling member 62 moves upward, the decoupling member 62 abuts against the inclined surface. When the decoupling member 62 continues to lift upward, the inclined surface is continuously subjected to force to drive the limit hook 51 to rotate, thereby separating the second hook portion 511 from the first crossbeam 52. After the limiting hook 51 is separated from the first crossbeam 52 , the first clamping member 21 and the second clamping member 22 will rotate toward each other under the action of their own weight, thereby driving the lifting clamp to close and clamp the material to be transferred.

[0052] Specifically, see Figure 3 The lifting fixture further includes a positioning member 61, a connecting member 64 and a positioning frame 63. The positioning frame 63 is connected to the first crossbeam 52. A through hole is provided on the positioning frame 63. The connecting member 64 is movably provided through the through hole. One end of the connecting member 64 is threadedly connected to a first nut, which can rest on the positioning frame 63. The other end of the connecting member 64 is connected to the positioning member 61. The unhooking member 62 is connected to the connecting member 64. In this embodiment, a positioning frame 63 is connected to the position on the first crossbeam 52 corresponding to the limiting hook 51. The positioning frame 63 is provided with a through hole. The connecting member 64 is a connecting rod. The through hole is movably provided through the connecting member 64. The top of the connecting member 64 is threaded with a first nut. The bottom area of ​​the first nut is larger than the area of ​​the through hole. The first nut can rest on the positioning frame 63, thereby enabling the connecting member 64 to slide along the through hole and be hung on the positioning frame 63 when the first nut rests on the positioning frame 63. The unhooking member 62 is provided on the connecting member 64, and the bottom end of the connecting member 64 is fixedly connected to the positioning member 61. When the lifting fixture is in the open state, that is, when the second hook portion 511 on the limit hook 51 hooks the first crossbeam 52, when the lifting equipment moves the lifting fixture to the position of the material to be transferred, the lifting fixture is lowered. After the positioning member 61 contacts the material to be transferred, it will be lifted upward by the material to be transferred, thereby driving the unhooking member 62 to move upward together. During the upward movement of the unhooking member 62, the limit hook 51 is pushed open, thereby closing the lifting fixture and clamping the material to be transferred. Then, the lifting equipment is started to lift the lifting fixture. During the lifting and transfer, the gravity of the material and the lifting fixture itself will keep it in the closed state. Of course, in other embodiments, a push rod can also be fixedly connected to the positioning member 61 as a unhooking member 62. As long as its position and size are appropriate, it can push open the limit hook 51 when the lifting fixture descends to the specified position. The specific structure is not limited here.

[0053] Preferably, in this embodiment, the first nut can also be used to adjust the height of the positioning member 61 to facilitate the transfer of materials of varying thicknesses. If the material to be transferred is too thin, the first nut is tightened to move the positioning member 61 downward to prevent the material from entering the clamp's gripping range before the release member 62 has disengaged the limit hook 51, preventing the lifting clamp from closing. If the material to be transferred is too thick, the first nut is tightened to move the positioning member 61 upward to prevent the release member 62 from disengaging the limit hook 51 prematurely, causing the lifting clamp to close prematurely.

[0054] Alternatively, as Figure 1-Figure 5 As shown, the first clamping member 21 includes a first clamping body 211, a first supporting block 212 and a first supporting member 213. One end of the first clamping body 211 is rotatably connected to the hoisting beam 1, and the first supporting member 213 is rotatably connected to the other end of the first clamping body 211. The first supporting block 212 is rotatably connected to the first clamping body 211, and the first supporting block 212 can abut against the first supporting member 213. In this embodiment, one end of the first supporting block 212 is hinged to the middle part of the first clamping body 211, and the first supporting member 213 is rotatably connected to the bottom of the first clamping body 211 via a first rotating shaft 215. The other end of the first supporting block 212 can abut against the first supporting member 213. The first clamping body 211, the first supporting block 212 and the first supporting member 213 constitute the clamping claw on one side of the clamping assembly 2. The second clamping member 22 includes a second clamping body 221, a second supporting block 222, and a second supporting member 223. One end of the second clamping body 221 is rotatably connected to the hoisting beam 1, and the second supporting member 223 is rotatably connected to the other end of the second clamping body 221. The second supporting block 222 is rotatably connected to the second clamping body 221. The second supporting block 222 can abut against the second supporting member 223, and the second supporting member 223 can dock with the first supporting member 213. One end of the second supporting block 222 is hinged to the middle of the second clamping body 221, and the second supporting member 223 is rotatably connected to the bottom of the second clamping body 221 via a second rotating shaft 225. The other end of the second supporting block 222 can abut against the second supporting member 223. The second clamping body 221, the second supporting block 222, and the second supporting member 223 constitute the clamping claw on the other side of the clamping assembly 2.

[0055] Specifically, if Figure 4 and Figure 5As shown, the first clamping member 21 also includes a first limiting member 214, which is connected to the first clamping body 211. When the first support block 212 rotates to abut against the first limiting member 214, the contact surface between the first support block 212 and the first supporting member 213 is perpendicular. In this embodiment, the first limiting member 214 is a first limiting pin, which is fixed below the hinge point between the first clamping body 211 and the first supporting block 212. The first limiting member 214 can limit the rotation angle of the first supporting block 212 around the first clamping body 211, and can also prevent the first supporting block 212 from rotating too much during the hoisting and transportation process, causing the first supporting member 213 to lose its support balance and rotate around the first rotating shaft 215, causing the material to fall. Of course, in other embodiments, the first limiting member 214 can also be a first limiting protrusion arranged below the hinge point between the first clamping body 211 and the first supporting block 212, which can also play the role of relatively fixing the angle (or position) between the first supporting block 212 and the first clamping body 211.

[0056] For more details, see Figure 4 The second clamping member 22 also includes a second limiting member 224, which is connected to the second clamping body 221. When the second support block 222 rotates to abut against the second limiting member 224, the contact surface between the second support block 222 and the second supporting member 223 is perpendicular. In this embodiment, the second limiting member 224 is a second limiting pin, which is fixed below the hinge point between the second clamping body 221 and the second supporting block 222. The second limiting member 224 can limit the rotation angle of the second supporting block 222 around the second clamping body 221. During the lifting and transportation process, it can also prevent the second supporting block 222 from rotating too much, causing the second supporting member 223 to lose its support balance and rotate around the second rotation axis 225, causing the material to fall. Of course, in other embodiments, the second limiting member 224 can also be a second limiting protrusion arranged below the hinge point between the second clamping body 221 and the second supporting block 222, which can also play the role of relatively fixing the angle (or position) between the second supporting block 222 and the second clamping body 221.

[0057] Alternatively, as Figure 1As shown, the lifting rope 3 includes a first lifting rope 31 and a second lifting rope 32. One end of the first lifting rope 31 is connected to the first clamping body 211, and the other end is connected to the second clamping body 221. One end of the second lifting rope 32 is connected to the first support block 212, and the other end is connected to the second support block 222. In this embodiment, the two first clamping bodies 211 on one side of the lifting beam 1 are connected by a first crossbar 71. The two ends of the first crossbar 71 are respectively connected to the hinge points of the two first clamping bodies 211 and the first support block 212. In other words, the first crossbar 71 is equivalent to the hinge axis around which the first support block 212 rotates around the first clamping body 211. One end of the first lifting rope 31 is connected to the first crossbar 71. Through the first crossbar 71, the first lifting rope 31 can pull the two first clamping bodies 211 to move synchronously. Correspondingly, the two second clamping bodies 221 on the other side of the hoisting beam 1 are connected by a third crossbar, and the two ends of the third crossbar are respectively connected to the hinge points of the two second clamping bodies 221 and the second support block 222. In other words, the third crossbar is equivalent to the hinge axis around which the second support block 222 rotates around the second clamping body 221. The other end of the second lifting rope 32 is connected to the third crossbar, and through the third crossbar, the second lifting rope 32 can pull the two second clamping bodies 221 to move synchronously. More specifically, the two first support blocks 212 on one side of the hoisting beam 1 are connected by a second crossbar 72, and the two second support blocks 222 on the other side of the hoisting beam 1 are connected by a fourth crossbar. The two ends of the second lifting rope 32 are respectively connected to the second crossbar 72 and the fourth crossbar, so as to pull the second crossbar 72 and the fourth crossbar at the same time during lifting.

[0058] Preferably, in this embodiment, the length of the first lifting rope 31 is greater than the length of the second lifting rope 32. That is, after the lifting equipment transfers the material to the designated location, the lifting fixture is lowered, and then the lifting hook of the lifting equipment is detached from the lifting beam 1, and the first lifting rope 31 and the second lifting rope 32 hung on the first hook portion 11 are unhooked. When the lifting equipment lifts the first lifting rope 31 and the second lifting rope 32, the second lifting rope 32 first pulls up the second crossbar 72 and the fourth crossbar, separating the first support block 212 from the first supporting member 213, and the second support block 222 and the second supporting member 223, thereby releasing the freedom of the first supporting member 213 around the first rotation axis 215 and the second supporting member 223 around the second rotation axis 225, allowing the first supporting member 213 and the second supporting member 223 to be easily withdrawn from under the material to be transferred. Next, as the lifting device gradually rises, the first lifting rope 31 is subjected to force, pulling up the first crossbar 71 and the third crossbar, thereby lifting the lifting fixture.

[0059] Example 2

[0060] This embodiment provides a lifting fixture. The difference between this embodiment and the first embodiment is that, in this embodiment, the lifting fixture includes a limiting hook 51 and a first crossbeam 52. The hinge points of the first clamping members 21 and the second clamping members 22 are connected by the first crossbeam 52. The limiting hook 51 is rotatably connected to the lifting crossbeam 1. The limiting hook 51 is provided with a second hook portion 511. The second hook portion 511 can cooperate with the first crossbeam 52 to limit the opening angle of the first clamping member 21 and the second clamping member 22. In other words, when the first clamping member 21 and the second clamping member 22 rotate relative to each other, the distance between the first crossbeam 52 and the lifting crossbeam 1 will change. The limiting hook 51 is rotatably connected to the lifting beam 1, and a second hooking portion 511 is provided on the limiting hook 51. When the distance between the first beam 52 and the lifting beam 1 reaches a specified position, the second hooking portion 511 hooks the first beam 52 to fix the distance between the first beam 52 and the lifting beam 1, and the opening angle between the first clamping member 21 and the second clamping member 22 is also fixed.

[0061] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A lifting fixture, characterized in that: include: A hoisting beam (1) is configured to be connected to a hoisting device, and a first hook portion (11) is provided at the bottom of the hoisting beam (1); A clamping assembly (2), wherein the two clamping assemblies (2) are respectively connected to the two ends of the hoisting beam (1), and the clamping assembly (2) comprises a first clamping member (21) and a second clamping member (22), one end of the first clamping member (21) and the second clamping member (22) are respectively connected to the hoisting beam (1), and the other ends of the first clamping member (21) and the second clamping member (22) can be butted against each other; a lifting rope (3), wherein both ends of the lifting rope (3) are respectively connected to the first clamping member (21) and the second clamping member (22), the lifting rope (3) can be hooked on the first hooking portion (11), and the lifting rope (3) is further configured to be connected to the lifting device to pull the butt ends of the first clamping member (21) and the second clamping member (22) away from each other; It also includes a connecting rod assembly (4), each of the clamping assemblies (2) is connected to the hoisting beam (1) via a connecting rod assembly (4), and the connecting rod assembly (4) includes a first connecting rod (41) and a second connecting rod (42); It also includes a limiting hook (51) and a first crossbeam (52); The limiting hook (51) is rotatably connected to the lifting beam (1). or, It also includes a second crossbeam (53), the second crossbeam (53) is connected between two opposite connecting rods of the connecting rod assembly (4), and the limiting hook (51) is rotatably connected to the second crossbeam (53); The hinge points of the two first clamping members (21) and the second clamping member (22) are connected via the first crossbeam (52); the limiting hook (51) is provided with a second hook portion (511); the second hook portion (511) can cooperate with the first crossbeam (52) to limit the opening angle of the first clamping member (21) and the second clamping member (22); It also includes a decoupling member (62), which is connected to the first crossbeam (52) and is located below the limiting hook (51). The decoupling member (62) can move toward the limiting hook (51) to separate the second hooking portion (511) from the first crossbeam (52).

2. The lifting fixture according to claim 1, characterized in that: One end of the first connecting rod (41) and the second connecting rod (42) are respectively hinged to the hoisting beam (1), the other end of the first connecting rod (41) is hinged to the first clamping member (21), and the other end of the second connecting rod (42) is hinged to the second clamping member (22), and the first clamping member (21) and the second clamping member (22) are arranged crosswise and hingedly connected at the intersection.

3. The lifting fixture according to claim 1, characterized in that: The invention also includes a positioning member (61), a connecting member (64) and a positioning frame (63), wherein the positioning frame (63) is connected to the first crossbeam (52), a through hole is provided on the positioning frame (63), and the connecting member (64) is movably passed through the through hole, one end of the connecting member (64) is threadedly connected to a first nut, and the first nut can be abutted against the positioning frame (63), the other end of the connecting member (64) is connected to the positioning member (61), and the unhooking member (62) is connected to the connecting member (64).

4. The lifting fixture according to claim 1, characterized in that: The first clamping member (21) includes a first clamping body (211), a first supporting block (212) and a first supporting member (213), one end of the first clamping body (211) is rotatably connected to the hoisting beam (1), the first supporting member (213) is rotatably connected to the other end of the first clamping body (211), the first supporting block (212) is rotatably connected to the first clamping body (211), and the first supporting block (212) can abut against the first supporting member (213); The second clamping member (22) includes a second clamping body (221), a second supporting block (222) and a second supporting member (223), one end of the second clamping body (221) is rotatably connected to the hoisting beam (1), the second supporting member (223) is rotatably connected to the other end of the second clamping body (221), the second supporting block (222) is rotatably connected to the second clamping body (221), the second supporting block (222) can abut against the second supporting member (223), and the second supporting member (223) can dock with the first supporting member (213).

5. The lifting fixture according to claim 4, characterized in that: The lifting rope (3) includes a first lifting rope (31) and a second lifting rope (32), wherein one end of the first lifting rope (31) is connected to the first clamping body (211), and the other end is connected to the second clamping body (221); one end of the second lifting rope (32) is connected to the first supporting block (212), and the other end is connected to the second supporting block (222).

6. The lifting fixture according to claim 5, characterized in that: The length of the first lifting rope (31) is greater than the length of the second lifting rope (32).

7. The lifting fixture according to claim 4, characterized in that: The first clamping member (21) further includes a first limiting member (214), the first limiting member (214) being connected to the first clamping body (211), and when the first supporting block (212) rotates to abut against the first limiting member (214), the contact surface between the first supporting block (212) and the first supporting member (213) is perpendicular; The second clamping member (22) further includes a second limiting member (224), the second limiting member (224) being connected to the second clamping body (221), and when the second supporting block (222) rotates to abut against the second limiting member (224), the contact surface of the second supporting block (222) and the second supporting member (223) is perpendicular.

Images