Safety lifting hook convenient to operate

Abstract

The utility model discloses a safety hook convenient to operate, which comprises a U-shaped fixing frame serving as a mounting carrier, a fixing column is jointly mounted in the middle of the bottoms of the two ends in the U-shaped fixing frame, first bearings are symmetrically mounted at the two ends of the outer side of the fixing column, and mounting rings are mounted on the outer rings of the first bearings. Bearing lifting hooks are welded to the bottom ends of the two sets of mounting rings, and the directions of hook heads of the two sets of bearing lifting hooks are opposite. The two groups of load-bearing lifting hooks can be overlapped to form a ring-shaped hook body to bear the weight of an object, so that the stress capacity of the lifting hook is improved, a lifting rope at the top of the object can be prevented from being accidentally separated from the lifting hook, and meanwhile, after the two groups of load-bearing lifting hooks are completely staggered, the lifting hook can be used as two groups of single hook bodies; the lifting hook is used for lifting different objects at the same time, the outer threaded pipe can be directly screwed, the mounting ring and the bearing lifting hooks are limited to be difficult to rotate, the angles of the two bearing lifting hooks can be freely adjusted, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a safe lifting hook which is easy to operate. Background Art

[0002] The hook is the most common type of lifting equipment in lifting machinery. The hook is often suspended on the wire rope of the lifting mechanism with the help of components such as pulleys. A single hook is simple to manufacture and easy to use, but it has poor stress resistance and is mostly used in work environments with a smaller lifting capacity. When the lifting capacity is large, a double hook with symmetrical stress is often used. The stacked hook is made of several pieces of cut and formed steel plates riveted together. When cracks appear on individual plates, the entire hook will not be damaged. It has better safety, but it has a larger dead weight and is mostly used on cranes with large lifting capacity or for lifting molten steel barrels.

[0003] The hook body on the existing lifting equipment is usually arranged as a group of hooks or two groups of hooks. When lifting objects of different weights, it is necessary to disassemble and replace the single hook or double hook according to different usage environments, and the position of the double hook cannot be freely adjusted as needed, which greatly affects the application scope of the hook; at the same time, when the hook is not in use, the hook body is often directly exposed to the outside world, which makes it difficult to protect the hook body and is not conducive to the storage or transportation of the entire hook. Utility Model Content

[0004] The purpose of the utility model is to provide a safe hook that is easy to operate, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a safety hook that is easy to operate, comprising a U-shaped fixing frame as a mounting carrier, a fixing column is commonly installed in the middle of the bottom of both ends of the U-shaped fixing frame, a first bearing is symmetrically installed at both ends of the outer side of the fixing column, a mounting ring is installed on the outer ring of the first bearing, load-bearing hooks are welded to the bottom ends of the two groups of mounting rings, and the hook heads of the two groups of load-bearing hooks are oriented in opposite directions, two groups of limit blocks are symmetrically installed on the tops of the two groups of mounting rings, a limit assembly that cooperates with the two groups of load-bearing hooks is commonly arranged on the tops of the two ends of the U-shaped fixing frame, and positioning assemblies that cooperate with the mounting rings are symmetrically arranged at both ends of the U-shaped fixing frame.

[0006] Preferably, the limiting assembly includes a second bearing, and the second bearing is provided in two groups, and the two groups of second bearings are symmetrically installed on the same side of the top of both ends of the U-shaped fixing frame, the inner rings of the two groups of the second bearings are commonly installed with a rotating rod, and the two ends of the outer side of the rotating rod are symmetrically threaded with movable plates, and strip-shaped through holes are symmetrically opened at the middle positions of the two ends of the U-shaped fixing frame, and limiting clamps are inserted into the inside of the strip through holes, and the two groups of limiting clamps are fixedly connected to the inner side of an adjacent group of movable plates at one side away from each other.

[0007] Preferably, the positioning assembly includes an externally threaded tube, which is provided with two groups, and the threads of the two groups of externally threaded tubes are arranged on the same side of the bottom of both ends of the U-shaped fixing frame, a connecting spring is installed on the side of the externally threaded tube away from the mounting ring, and a movable column adapted to the externally threaded tube is installed on the side of the connecting spring close to the mounting ring, and the ends of the two groups of mounting rings away from each other are symmetrically and evenly provided with hemispherical grooves that cooperate with the movable column.

[0008] Preferably, a connector is installed at one end of the rotating rod, and a shaking handle matched with the connector is provided at one end of the U-shaped fixing frame.

[0009] Preferably, butterfly handles are symmetrically mounted on the ends of the two groups of externally threaded tubes that are away from each other, and the surfaces of the butterfly handles are provided with anti-slip raised patterns.

[0010] Preferably, a suspension rope connection seat is welded at the middle position of the top of the U-shaped fixing frame, and two groups of reinforcement ribs fixedly connected to the top of the U-shaped fixing frame are symmetrically installed at both ends of the suspension rope connection seat.

[0011] Preferably, angle scale lines are symmetrically arranged at the bottom of both ends of the U-shaped fixing frame, and pointer marks cooperating with the angle scale lines are symmetrically arranged on one side away from each other of the two groups of load-bearing hooks.

[0012] Beneficial Effects

[0013] Compared with the prior art, the utility model provides a safe hook that is easy to operate and has the following beneficial effects:

[0014] 1. The utility model rotates one or two groups of load-bearing hooks out from the inside of the U-shaped fixing frame as needed. The two groups of load-bearing hooks can overlap into a ring-shaped hook body to jointly bear the weight of the object, thereby improving the force-bearing capacity of the hook and preventing the rope on the top of the object from accidentally detaching from the hook. At the same time, after the two groups of load-bearing hooks are completely dislocated, they can be used as two groups of single hook bodies to lift different objects at the same time. After adjusting the angles of the two groups of load-bearing hooks, the external threaded pipe can be directly tightened so that the movable column can be tightly stuck in the inside of the hemispherical groove, limiting the difficulty of the mounting ring and the load-bearing hook to rotate again, thereby allowing the two groups of load-bearing hooks to freely adjust the angle, so that the safety hook can be suitable for different usage environments and the operation is simple and convenient.

[0015] When the two groups of load-bearing hooks leave the U-shaped fixing frame and need to lift an object, the two groups of movable plates can be moved deeper into the U-shaped fixing frame and stuck between the two pairs of limit blocks to limit the load-bearing hooks from rotating, thereby helping to ensure the stability of the two groups of load-bearing hooks during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 This is the front view of the utility model after the movable plate is disassembled;

[0018] Figure 3 This is a front cross-sectional view of the utility model;

[0019] Figure 4 It is a right side cross-sectional schematic diagram of the utility model;

[0020] Figure 5 It is a left side cross-sectional schematic diagram of the utility model;

[0021] Figure 6 This is a front cross-sectional view of the utility model after the hook is retracted into the U-shaped fixing frame;

[0022] Figure 7 For this utility model Figure 4 Enlarged view of point A.

[0023] In the figure:

[0024] 10. U-shaped fixing frame; 11. fixing column; 12. first bearing; 13. mounting ring; 14. load-bearing hook; 15. limit block; 16. lifting rope connecting seat;

[0025] 20. Limiting assembly; 21. Second bearing; 22. Rotating rod; 23. Moving plate; 24. Strip through hole; 25. Limiting card plate; 26. Shaking handle;

[0026] 30. Positioning assembly; 31. Externally threaded tube; 32. Connecting spring; 33. Movable column; 34. Hemispherical groove; 35. Butterfly handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-7 As shown, a safe hook that is easy to operate includes a U-shaped fixing frame 10 as an installation carrier, a fixing column 11 is commonly installed in the middle of the bottom of the two ends of the U-shaped fixing frame 10, a first bearing 12 is symmetrically installed at the two ends of the outer side of the fixing column 11, and a mounting ring 13 is installed on the outer ring of the first bearing 12, and the bottom ends of the two groups of mounting rings 13 are welded with load-bearing hooks 14, and the hook heads of the two groups of load-bearing hooks 14 are oriented in opposite directions, and two groups of limit blocks 15 are symmetrically installed on the tops of the two groups of mounting rings 13, and the tops of the two ends of the U-shaped fixing frame 10 are commonly provided with limit components 20 that cooperate with the two groups of load-bearing hooks 14, and the two ends of the U-shaped fixing frame 10 are symmetrically provided with positioning components 30 that cooperate with the mounting rings 13.

[0029] In this embodiment, the limiting assembly 20 includes a second bearing 21, and two groups of second bearings 21 are provided, and the two groups of second bearings 21 are symmetrically installed on the same side of the top of the two ends of the U-shaped fixing frame 10, and the inner rings of the two groups of second bearings 21 are commonly installed with a rotating rod 22, and the two ends of the outer side of the rotating rod 22 are symmetrically provided with threads, and the two ends of the outer side of the rotating rod 22 are symmetrically provided with movable plates 23 by threads, which helps to force the two groups of movable plates 23 to move closer to or away from each other on the rotating rod 22 through the action of the threads, and strip through holes 24 are symmetrically opened at the middle position of the two ends of the U-shaped fixing frame 10, and a limiting clamping plate 25 is inserted into the inside of the strip through hole 24, and the two groups of limiting clamping plates 25 are fixedly connected to the inner side of the adjacent group of movable plates 23 on the side away from each other.

[0030] In this embodiment, the positioning assembly 30 includes an external threaded tube 31, and two groups of external threaded tubes 31 are provided, and the two groups of external threaded tubes 31 are threadedly arranged on the same side of the bottom of both ends of the U-shaped fixing frame 10, and a connecting spring 32 is installed on the side of the external threaded tube 31 away from the mounting ring 13, and a movable column 33 adapted to the external threaded tube 31 is installed on the side of the connecting spring 32 close to the mounting ring 13, and the ends of the two groups of mounting rings 13 away from each other are symmetrically and evenly provided with hemispherical grooves 34 that cooperate with the movable column 33. , tighten the external threaded tube 31, the connecting spring 32 is shortened under force, giving the movable column 33 a greater thrust, so that the head end of the movable column 33 can be tightly stuck in the hemispherical groove 34, restricting the mounting ring 13 and the load-bearing hook 14 from rotating further. When the external threaded tube 31 is loosened, when the mounting ring 13 and the load-bearing hook 14 rotate with the fixed column 11 as the axis, the top end of the movable column 33 continuously moves in sequence inside the multiple groups of hemispherical grooves 34 on the mounting ring 13, and the connecting spring 32 continuously shortens and then lengthens.

[0031] In this embodiment, a connector is installed at one end of the rotating rod 22 , and a shaking handle 26 matched with the connector is provided at one end of the U-shaped fixing frame 10 , so that the rotating rod 22 can be rotated by the shaking handle 26 .

[0032] In this embodiment, butterfly handles 35 are symmetrically installed at one end of the two groups of external threaded tubes 31 away from each other, and the surface of the butterfly handles 35 is provided with anti-slip raised patterns to facilitate manual rotation of the external threaded tubes 31 through the butterfly handles 35.

[0033] In this embodiment, a suspension rope connection seat 16 is welded at the middle position of the top of the U-shaped fixing frame 10, and two groups of reinforcing ribs fixedly connected to the top of the U-shaped fixing frame 10 are symmetrically installed at both ends of the suspension rope connection seat 16, which helps to improve the firmness of the connection between the suspension rope connection seat 16 and the top of the U-shaped fixing frame 10.

[0034] In this embodiment, angle scale lines are symmetrically arranged at the bottom of both ends of the U-shaped fixing frame 10, and pointer marks cooperating with the angle scale lines are symmetrically arranged on one side away from each other of the two groups of load-bearing hooks 14, so as to facilitate free adjustment of the angles of the two groups of load-bearing hooks 14, and also allow the two groups of load-bearing hooks 14 to adjust the same angle.

[0035] Working principle: Before use, the bottom end of the lifting rope of the lifting equipment is fixedly connected to the rope connecting seat 16, and then one or two groups of load-bearing hooks 14 are rotated out from the inside of the U-shaped fixing frame 10 as needed. During the process, the top of the movable column 33 continuously moves in turn inside the multiple groups of hemispherical grooves 34 on the mounting ring 13, and the connecting spring 32 continuously shortens and then stretches, and the two groups of load-bearing hooks 14 can overlap to form a ring-shaped hook body (as shown in the attached manual). Figure 1 As shown), at the same time, after the two sets of load-bearing hooks 14 are completely dislocated (as shown in the attached manual Figure 2The two sets of load-bearing hooks 14 can be used as two sets of single hooks to lift different objects at the same time. After adjusting the angles of the two sets of load-bearing hooks 14, the external threaded tube 31 can be directly tightened to shorten the connecting spring 32, giving the movable column 33 a greater thrust, so that the head end of the movable column 33 can be tightly stuck in the hemispherical groove 34, limiting the difficulty of the mounting ring 13 and the load-bearing hook 14 to rotate. When the safety hook is not in use, the two sets of load-bearing hooks 14 can be retracted into the U-shaped fixing frame 10 by rotating the two sets of load-bearing hooks 14, and the positioning component 30 can limit The two groups of load-bearing hooks 14 can be stably located inside the U-shaped fixing frame 10, and then the rotating rod 22 is controlled to rotate, and the two groups of movable plates 23 are forced to drive the two groups of limiting clamps 25 to move toward the inside of the U-shaped fixing frame 10 through the action of the thread. At this time, the limiting clamps 25 are stuck on the inner side of the load-bearing hooks 14, so that the two groups of load-bearing hooks 14 cannot leave from the inside of the U-shaped fixing frame 10 at all. When the two groups of load-bearing hooks 14 overlap to form a circle, the two groups of limiting clamps 25 can also be stuck between the two pairs of limiting blocks 15, so that the two groups of load-bearing hooks 14 always maintain a circle structure.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveniently operated safety hook, comprising a U-shaped fixing frame (10) as a mounting carrier, characterized in that: A fixing column (11) is installed in the middle of the bottom of both ends of the U-shaped fixing frame (10), and first bearings (12) are symmetrically installed at both ends of the outer side of the fixing column (11). The outer ring of the first bearing (12) is installed with a mounting ring (13). The bottom ends of the two groups of mounting rings (13) are welded with load-bearing hooks (14), and the hook heads of the two groups of load-bearing hooks (14) are oriented in opposite directions. Two groups of limit blocks (15) are symmetrically installed on the tops of the two groups of mounting rings (13). The tops of the two ends of the U-shaped fixing frame (10) are jointly provided with limit assemblies (20) that cooperate with the two groups of load-bearing hooks (14), and the two ends of the U-shaped fixing frame (10) are symmetrically provided with positioning assemblies (30) that cooperate with the mounting rings (13).

2. A convenient-to-operate safety hook according to claim 1, characterized in that: The limiting assembly (20) comprises a second bearing (21), wherein the second bearing (21) is provided in two groups, and the two groups of second bearings (21) are symmetrically mounted on the same side of the top of both ends of the U-shaped fixing frame (10), the inner rings of the two groups of the second bearings (21) are commonly mounted with a rotating rod (22), and the two ends of the outer side of the rotating rod (22) are symmetrically threaded with movable plates (23), and strip-shaped through holes (24) are symmetrically opened at the middle positions of the two ends of the U-shaped fixing frame (10), and a limiting clamping plate (25) is inserted into the inside of the strip-shaped through hole (24), and the two groups of the limiting clamping plates (25) are fixedly connected to the inner side of an adjacent group of movable plates (23) at a side away from each other.

3. The convenient-to-operate safety hook according to claim 1, characterized in that: The positioning assembly (30) comprises an externally threaded tube (31), wherein two groups of the externally threaded tube (31) are provided, and the two groups of the externally threaded tube (31) are threadedly provided on the same side of the bottom of both ends of the U-shaped fixing frame (10), a connecting spring (32) is installed on the side of the internal part of the externally threaded tube (31) away from the mounting ring (13), and a movable column (33) adapted to the externally threaded tube (31) is installed on the side of the connecting spring (32) close to the mounting ring (13), and hemispherical grooves (34) cooperating with the movable column (33) are symmetrically and evenly provided at the ends of the two groups of the mounting rings (13) away from each other.

4. The convenient-to-operate safety hook according to claim 2, characterized in that: A connector is installed at one end of the rotating rod (22), and a shaking handle (26) matched with the connector is arranged at one end of the U-shaped fixing frame (10).

5. The convenient-to-operate safety hook according to claim 3, characterized in that: The two groups of externally threaded tubes (31) are symmetrically provided with butterfly handles (35) at the ends away from each other, and the surfaces of the butterfly handles (35) are provided with anti-slip raised patterns.

6. The convenient-to-operate safety hook according to claim 1, characterized in that: A suspension rope connection seat (16) is welded at the middle position of the top of the U-shaped fixing frame (10), and two groups of reinforcing ribs fixedly connected to the top of the U-shaped fixing frame (10) are symmetrically mounted at both ends of the suspension rope connection seat (16).

7. The convenient-to-operate safety hook according to claim 1, characterized in that: The bottoms of the two ends of the U-shaped fixing frame (10) are symmetrically provided with angle scale lines, and the two groups of load-bearing hooks (14) are symmetrically provided with pointer marks that cooperate with the angle scale lines on one side away from each other.

Images