Quick replacement device for crane hook

Abstract

The utility model provides a quick replacement device for a crane hook, and relates to the technical field of quick replacement structures. Comprising a hook body and a steel wire rope, a quick replacement structure is arranged between the hook body and the steel wire rope, the quick replacement structure comprises a round clamping block, a round clamping frame is clamped to the outer surface of the round clamping block, a first round plate is fixedly connected to the bottom of the round clamping block, and the bottom of the first round plate is fixedly connected with the top of the hook body; by arranging a quick replacement structure, under the action of a first circular plate and an annular plate, a circular clamping rod can be inserted into a circular clamping hole when a circular clamping block is connected with a circular clamping frame in a clamping mode, and then alignment of the first screw hole and the second screw hole can be completed only by observing the relative position of the first screw hole and the second screw hole and then selecting the insertion position of the circular clamping rod; and therefore, disassembly and assembly are facilitated, time waste caused by manual alignment of the first screw hole and the second screw hole is avoided, and the overall disassembly and assembly and replacement efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of quick-change device technology, and in particular to a quick-change device for crane hooks. Background Technology

[0002] During actual use, hooks need to be replaced according to their wear and tear and usage condition to ensure safe and effective operation. This requires a replacement device. While existing hook replacement devices have relatively complete structures and functions and can meet daily usage needs, the following issues still exist:

[0003] In actual use, replacing the hook requires the joint assembly and disassembly of multiple bolts, and the mounting holes of the bolts need to be manually aligned, which consumes a lot of installation time, thereby reducing the overall installation efficiency and causing great inconvenience.

[0004] Therefore, this utility model provides a quick-change device for crane hooks. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a quick-change device for crane hooks.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a crane hook quick-change device, comprising a hook body and a wire rope, wherein a quick-change structure is provided between the hook body and the wire rope, the quick-change structure comprising a circular locking block, a circular locking frame being engaged with the outer surface of the circular locking block, a first circular plate being fixedly connected to the bottom of the circular locking block, the bottom of the first circular plate being fixedly connected to the top of the hook body; an adjustment limiting structure is provided at the top of the circular locking frame, the adjustment limiting structure comprising a second circular plate, the bottom of the second circular plate being fixedly connected to the top of the circular locking frame, and the top of the second circular plate being fixedly connected to the wire rope.

[0007] In a preferred embodiment, an annular plate is fixedly connected to the bottom of the outer surface of the circular card frame, and four circular card rods are fixedly connected to the bottom of the annular plate, which are equidistantly arranged along the circumference of the annular plate. The inner wall of the first circular plate has four circular card holes, which are equidistantly arranged along the circumference of the first circular plate. The inner wall of the circular card block has a first screw hole, and the inner wall of the circular card frame has a second screw hole. Threaded card rods are threadedly connected to the inner walls of the first screw hole and the second screw hole.

[0008] The technical effect of adopting the above-mentioned further solution is that, under the action of the round clamp frame and the round clamp block, the hook body and the wire rope can be assisted in clamping. At the same time, during the clamping process, after the round clamp rod is clamped with the round clamp hole, the first screw hole can be aligned with the second screw hole. Then, the threaded clamp rod can be directly fixed with the first screw hole and the second screw hole, making the overall fixing more convenient and faster. There is no need for manual alignment, and only one threaded clamp rod needs to be fixed, which is convenient and quick.

[0009] In a preferred embodiment, one end of the threaded clamp is threaded with a fixing nut.

[0010] The technical effect of adopting the above-mentioned further solution is that, under the action of the fixing nut, the threaded clamp can be auxiliaryly limited, so that the threaded clamp will not easily loosen or separate due to vibration or external force.

[0011] In a preferred embodiment, a fixing rod is symmetrically fixedly connected to the top of the outer surface of the second circular plate. A sliding cylinder is slidably connected to one end of the fixing rod. A threaded locking hole is opened on one side of the fixing rod. A threaded locking rod is threadedly connected to the inner wall of one side of the sliding cylinder. An annular block is fixedly connected to the top of the outer surface of the sliding cylinder. A threaded extrusion rod is threadedly connected to the inner wall of the annular block. A rubber round block is fixedly connected to one end of the outer surface of the threaded extrusion rod.

[0012] The technical effect of adopting the above-mentioned further solution is that, under the action of the threaded locking hole and the threaded locking rod, the fixing rod and the sliding cylinder can be fixed, thereby allowing the sliding cylinder to extend the working length of the annular block, so that the rubber block and the like can be auxiliaryly fixed with the wire rope, thereby avoiding relatively large swings at the connection between the hook body and the wire rope.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] By setting up a quick-change structure, under the action of the first circular plate and the annular plate, the circular locking rod can be inserted into the inside of the circular locking hole when the circular locking block is engaged with the circular locking frame. Previously, it was only necessary to observe the relative positions of the first screw hole and the second screw hole, and then select the insertion position of the circular locking rod to complete the alignment of the first screw hole and the second screw hole, thus facilitating disassembly and assembly, avoiding the time wasted by manually aligning the first screw hole and the second screw hole, and improving the overall disassembly and replacement efficiency. By setting up an adjustable limit structure, under the cooperation of the fixed rod and the sliding cylinder, the height of the annular block can be adjusted, thus fixing the rubber circular block to the wire rope according to the actual use requirements. This prevents large swings at the connection between the wire rope and the hook body during hoisting, thereby reducing the possibility of breakage. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a crane hook quick-change device provided by this utility model;

[0016] Figure 2 A schematic diagram of the hook body structure of a crane hook quick-change device provided by this utility model;

[0017] Figure 3 A schematic diagram of the circular clip frame of a crane hook quick-change device provided by this utility model;

[0018] Figure 4 A schematic diagram of the annular block structure of a crane hook quick-change device provided by this utility model.

[0019] Legend:

[0020] 1. Hook body; 2. Steel wire rope;

[0021] 3. Quick-change structure; 31. First circular plate; 32. Circular locking block; 33. Circular locking frame; 34. Annular plate; 35. Circular locking hole; 36. Circular locking rod; 37. First screw hole; 38. Second screw hole; 39. Threaded locking rod; 310. Fixing nut;

[0022] 4. Adjustable limiting structure; 41. Second circular plate; 42. Fixing rod; 43. Sliding cylinder; 44. Threaded locking hole; 45. Threaded locking rod; 46. Ring block; 47. Threaded extrusion rod; 48. Rubber round block. Detailed Implementation

[0023] 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.

[0024] like Figures 1-4As shown, this embodiment provides a technical solution: a crane hook quick-change device, including a hook body 1 and a wire rope 2. A quick-change structure 3 is provided between the hook body 1 and the wire rope 2. The quick-change structure 3 includes a circular locking block 32, a circular locking frame 33 is engaged on the outer surface of the circular locking block 32, a first circular plate 31 is fixedly connected to the bottom of the circular locking block 32, and the bottom of the first circular plate 31 is fixedly connected to the top of the hook body 1. An adjustment limiting structure 4 is provided at the top of the circular locking frame 33. The adjustment limiting structure 4 includes a second circular plate 41, the bottom of the second circular plate 41 is fixedly connected to the top of the circular locking frame 33, and the top of the second circular plate 41 is fixedly connected to the wire rope 2. By setting the quick-change structure 3, under the action of the first circular plate 31 and the annular plate 34, the circular locking rod 36 can be moved in a circular... When the locking block 32 engages with the circular locking frame 33, it is inserted into the interior of the circular locking hole 35. Beforehand, it is only necessary to observe the relative positions of the first screw hole 37 and the second screw hole 38, and then select the insertion position of the circular locking rod 36 to complete the alignment of the first screw hole 37 and the second screw hole 38, which facilitates disassembly and assembly, avoids the time wasted by manually aligning the first screw hole 37 and the second screw hole 38, and improves the overall disassembly and replacement efficiency. By setting the adjustment limit structure 4, the height of the annular block 46 can be adjusted under the cooperation of the fixed rod 42 and the sliding cylinder 43. According to the actual use requirements, the rubber circular block 48 is fixed to the steel wire rope 2, thereby preventing large swings at the connection between the steel wire rope 2 and the hook body 1 during hoisting, thus reducing the possibility of breakage.

[0025] Going further, such as Figures 2-3 As shown: A ring plate 34 is fixedly connected to the bottom of the outer surface of the circular frame 33. Four circular locking rods 36 are fixedly connected to the bottom of the ring plate 34, which are equidistantly arranged along the circumference of the ring plate 34. Four circular locking holes 35 are opened on the inner wall of the first circular plate 31, which are equidistantly arranged along the circumference of the first circular plate 31. A first screw hole 37 is opened on the inner wall of the circular locking block 32, and a second screw hole 38 is opened on the inner wall of the circular frame 33. The inner walls of the first screw hole 37 and the second screw hole 38 are threaded together. With the threaded locking rod 39 attached, the hook body 1 and the wire rope 2 can be assisted in locking together under the action of the round locking frame 33 and the round locking block 32. At the same time, after the round locking rod 36 locks into the round locking hole 35, the first screw hole 37 can be aligned with the second screw hole 38. Then, the threaded locking rod 39 can be directly fixed to the first screw hole 37 and the second screw hole 38, making the overall fixing more convenient and faster. There is no need for manual alignment, and only one threaded locking rod 39 needs to be fixed, which is convenient and quick.

[0026] The above solutions also have the problem that the threaded clamp 39 is prone to loosening due to external vibrations, such as... Figure 3As shown: In this solution, one end of the threaded clamp 39 is threadedly connected to a fixing nut 310. Under the action of the fixing nut 310, the threaded clamp 39 can be auxiliaryly limited, so that the threaded clamp 39 will not easily loosen or separate due to vibration or external force.

[0027] The above solution also has the problem that the connection between the wire rope 2 and the hook body 1 is prone to significant shaking, which could lead to breakage. Figure 4 As shown, a fixing rod 42 is symmetrically fixedly connected to the top of the outer surface of the second circular plate 41. A sliding cylinder 43 is slidably connected to one end of the fixing rod 42. A threaded locking hole 44 is opened on one side of the fixing rod 42. A threaded locking rod 45 is threadedly connected to the inner wall of one side of the sliding cylinder 43. An annular block 46 is fixedly connected to the top of the outer surface of the sliding cylinder 43. A threaded extrusion rod 47 is threadedly connected to the inner wall of the annular block 46. A rubber round block 48 is fixedly connected to one end of the outer surface of the threaded extrusion rod 47. Under the action of the threaded locking hole 44 and the threaded locking rod 45, the fixing rod 42 and the sliding cylinder 43 can be fixed, thereby allowing the sliding cylinder 43 to extend the working length of the annular block 46. This allows the rubber round block 48 and the like to be auxiliaryly fixed with the wire rope 2, thereby preventing relatively large swings at the connection between the hook body 1 and the wire rope 2.

[0028] Working principle:

[0029] like Figure 1-4 As shown:

[0030] When in use: insert the round clip 32 into the inner wall of the round clip frame 33. At this time, the round clip rod 36 engages with the round clip hole 35. Then, fix the threaded clip rod 39 with the first screw hole 37 and the second screw hole 38, thereby fixing the round clip 32 and the round clip frame 33.

[0031] At this time, pull the ring block 46 to make the sliding cylinder 43 slide on the outer surface of the fixed rod 42, which can drive the ring block 46 to move. After moving to the appropriate position, rotate the threaded locking rod 45 so that the threaded locking rod 45 can be fixed with the threaded locking hole 44.

[0032] At this time, rotating the threaded extrusion rod 47 allows the rubber block 48 to be auxiliaryly fixed to the wire rope 2, thereby limiting the position of the wire rope 2.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A quick-change device for a crane hook, comprising a hook body (1) and a wire rope (2), characterized in that, A quick-change structure (3) is provided between the hook body (1) and the wire rope (2). The quick-change structure (3) includes a round locking block (32). A round locking frame (33) is snapped onto the outer surface of the round locking block (32). A first round plate (31) is fixedly connected to the bottom of the round locking block (32). The bottom of the first round plate (31) is fixedly connected to the top of the hook body (1). The top of the circular card frame (33) is provided with an adjustment limiting structure (4), which includes a second circular plate (41). The bottom of the second circular plate (41) is fixedly connected to the top of the circular card frame (33), and the top of the second circular plate (41) is fixedly connected to the wire rope (2).

2. A crane hook quick change device according to claim 1, characterised in that: The bottom of the outer surface of the circular card frame (33) is fixedly connected to an annular plate (34), and the bottom of the annular plate (34) is fixedly connected to four circular card rods (36) arranged equidistantly along the circumference of the annular plate (34).

3. A crane hook quick change device according to claim 1, characterised in that: The inner wall of the first circular plate (31) is provided with four circular holes (35), and the four circular holes (35) are arranged at equal intervals along the circumference of the first circular plate (31).

4. A crane hook quick change device according to claim 1, characterised in that: The inner wall of the circular card block (32) is provided with a first screw hole (37), and the inner wall of the circular card frame (33) is provided with a second screw hole (38).

5. A crane hook quick change device according to claim 4, characterised in that: The inner walls of the first screw hole (37) and the second screw hole (38) are threaded with threaded rods (39), and one end of the threaded rods (39) is threaded with a fixing nut (310).

6. A crane hook quick change device according to claim 1, characterized in that: A fixing rod (42) is symmetrically fixedly connected to the top of the outer surface of the second circular plate (41). A sliding cylinder (43) is slidably connected to one end of the fixing rod (42). A threaded locking hole (44) is opened on one side of the fixing rod (42). A threaded locking rod (45) is threadedly connected to the inner wall of one side of the sliding cylinder (43).

7. A crane hook quick change device according to claim 6, characterised in that: An annular block (46) is fixedly connected to the top of the outer surface of the sliding cylinder (43), and a threaded extrusion rod (47) is threadedly connected to the inner wall of the annular block (46). A rubber round block (48) is fixedly connected to one end of the outer surface of the threaded extrusion rod (47).

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