Anti-unhooking device for travelling crane, travelling crane lifting hook and travelling crane

Abstract

The utility model provides an anti-unhooking device for a travelling crane, a travelling crane lifting hook and the travelling crane, the travelling crane lifting hook comprises a fixing mechanism, a connecting mechanism connected to the lower end of the fixing mechanism and a hook body connected to the lower end of the connecting mechanism, and the anti-unhooking device for the travelling crane comprises an anti-unhooking ring and an anti-disengaging rod; one end of the hook main body is a hook head part, and the other end is a hook tail part which is fixed with the connecting mechanism; the same sides of the hook head part and the hook tail part are respectively provided with an anti-unhooking hook ring, the anti-falling rod simultaneously penetrates through the anti-unhooking hook rings of the hook head part and the hook tail part on the same sides, and the anti-falling rod is in axial limiting connection with any one of the anti-unhooking hook rings. The anti-falling hook is reasonable in structural design, the anti-falling installation is rapid and convenient by utilizing the design of the anti-falling hook ring and the matched long rod, the working efficiency is high, and the slipping risk of the hook hooking rope can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of crane hooks, in particular to an anti-unhooking device for cranes, a crane hook and a crane. Background Art

[0002] With the continuous development of mechanization in the metallurgical industry, mechanical heavy industry and other hoisting industries involving cranes, tower cranes, etc., hoisting tools are used more and more frequently. However, in daily work, when using hoisting tools, if there is no anti-slip device or the anti-slip device is unstable, it is easy for the hanging rope and hook to be unhooked when the hook is hanging heavy objects, resulting in falling objects from high altitude, causing personal injury and property damage, which poses a major hidden danger to production safety. Therefore, a stable, safe and reliable anti-slip device for cranes is needed.

[0003] At present, in order to solve the problem that the existing crane hook is easy to unhook, CN116812740A discloses a simulated unhook crane hook, in which two pairs of fixing nuts are fixedly connected to the side of the hook body, and the fixing nuts are internally meshed and connected with a limit screw. The limit screw and the body form a restricted area, and the rope hung on the hook body is restricted, thereby preventing the rope from falling off the hook.

[0004] However, for this threaded connection structure, both the loading and unloading operations require the use of limit nuts for loosening or tightening, and this operation process is relatively cumbersome, affecting work efficiency. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in order to overcome the deficiencies of the prior art, the utility model provides a crane anti-unhooking device, a crane hook and a crane, which can effectively reduce the unhooking problem while being simpler and faster to operate, thereby effectively improving work efficiency.

[0006] The technical solution adopted by the utility model to solve its technical problems is: an anti-unhooking device for cranes, which is arranged on a crane hook, the crane hook comprises a fixing mechanism, a connecting mechanism connected to the lower end of the fixing mechanism and a hook body connected to the lower end of the connecting mechanism, the anti-unhooking device for cranes comprises an anti-unhooking hook ring and an anti-unhooking rod; one end of the hook body is a hook head, and the other end is a hook tail, and the hook tail is fixed to the connecting mechanism; anti-unhooking hook rings are respectively arranged on the same side of the hook head and the hook tail, the anti-unhooking rod is simultaneously inserted through the anti-unhooking hook rings of the hook head and the hook tail on the same side, and the anti-unhooking rod is axially limitedly connected to any one of the anti-unhooking hook rings.

[0007] In the above scheme, the anti-dropping hook ring and the anti-dropping rod axially limitedly connected to the anti-dropping hook ring are arranged on the same side, so that the suspended object hung in the crane hook can be effectively limited. Before use, the anti-dropping rod is removed first, and the suspended object (hook or hanging rope) is put into the hook. After confirming that it is hung at the bottom of the hook, the anti-dropping rod is passed through the anti-dropping ring and limited with the anti-dropping ring, so that the channel for the hook and hanging rope to fall out can be isolated, thereby effectively preventing the hook from falling off.

[0008] Preferably, the anti-slip rod is a long-handled metal rod, and after the long-handled metal rod is respectively inserted through the anti-slip hook rings of the hook head and the hook tail, each metal long-handled rod can also be detachably provided with two limit buckles, which are spaced apart along the axial length direction of the long-handled metal rod and are respectively located on the outside of the anti-slip hook rings of the hook head and the hook tail.

[0009] Preferably, the anti-drop rod comprises a bent head and a straight rod connected in sequence, and after the straight rod passes through the anti-drop hook ring of the hook tail and the anti-drop hook ring of the hook head in sequence, the bent head and the anti-drop hook ring of the hook tail are limited and crimped. Under the action of gravity, the bent head of the anti-drop rod will automatically fall into the anti-drop ring of the hook head and will not fall off, thereby axially limiting the anti-drop rod and the anti-drop hook ring, simplifying the positioning operation while ensuring reliable limit.

[0010] Furthermore, the axial cross-section of the anti-drop rod is in a "7"-shaped structure, wherein the transverse portion of the "7"-shaped structure is a bent head portion, and the longitudinal portion is a straight rod portion.

[0011] A crane hook comprises a fixing mechanism, a connecting mechanism connected to the lower end of the fixing mechanism and a hook body connected to the lower end of the connecting mechanism, wherein the hook body is provided with the above-mentioned anti-hooking device for crane use.

[0012] A crane comprises the above-mentioned crane hook.

[0013] The beneficial effect of the utility model is that the utility model provides an anti-unhooking device for cranes, a crane hook and a crane, which have a reasonable structural design, utilize the design of an anti-unhooking hook ring and a matching long rod, and the anti-unhooking installation is quick and convenient, with high work efficiency, and can effectively avoid the risk of the hook and rope slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the second embodiment of the present utility model.

[0017] In the figure, 1, fixing mechanism 2, connecting mechanism 3, anti-drop hook ring 4, anti-drop rod 5, hook 6, and limit buckle. DETAILED DESCRIPTION

[0018] The utility model is now described in further detail in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, so they only show the components related to the utility model, and the directions and references (for example, up, down, left, right, etc.) can only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not adopted in a restrictive sense, and the scope of the subject matter claimed is limited only by the attached claims and their equivalents.

[0019] like Figure 1 The anti-unhooking device for driving shown is the first embodiment of the utility model.

[0020] The anti-unhooking device for crane is arranged on the crane hook. The crane hook comprises a fixing mechanism 1, a connecting mechanism 2 connected to the lower end of the fixing mechanism 1 and a hook body 5 connected to the lower end of the connecting mechanism 2. The anti-unhooking device for crane comprises an anti-unhooking hook ring 3 and an anti-unhooking rod 4. One end of the hook body 5 is a hook head and the other end is a hook tail, and the hook tail is fixed to the connecting mechanism 2. Anti-unhooking hook rings 3 are respectively arranged on the same side of the hook head and the hook tail, and the anti-unhooking rod 4 is simultaneously inserted through the anti-unhooking hook rings 3 of the hook head and the hook tail on the same side, and the anti-unhooking rod 4 is axially limitedly connected to any one of the anti-unhooking hook rings 3.

[0021] In the first embodiment, the axial limit of the anti-drop rod 4 and the anti-drop hook ring 3 is achieved by the limit buckle 6. Specifically, the anti-drop rod 4 is a metal long handle rod. After the metal long handle rod is inserted into the anti-drop hook ring 3 of the hook head and the hook tail, two limit buckles 6 can be detachably provided on each metal long handle rod. The two limit buckles 6 are arranged at intervals along the axial length direction of the metal long handle rod and are respectively located on the outside of the anti-drop hook ring 3 of the hook head and the hook tail. In actual selection, the metal long handle rod can be a metal long handle screw, and the limit buckle 6 can be a nut matched with the metal long handle screw or a buckle matched with a threaded clamp.

[0022] When in use, the anti-slip hook ring 3 and the anti-slip rod 4 axially limitedly connected to the anti-slip hook ring 3 provided on the same side can effectively limit the suspended object hung in the crane hook. Before use, the anti-slip rod 4 should be removed first, and the suspended object (hook or hanging rope) should be put into the hook. After confirming that it is hung at the bottom of the hook, the anti-slip rod 4 should be inserted into the anti-slip ring 3 and limited with the anti-slip ring 3, so that the channel for the hook and hanging rope to slip out can be isolated, thereby effectively preventing the hook from falling off.

[0023] like Figure 2 The anti-unhooking device for driving shown is the second embodiment of the utility model.

[0024] The difference between the second embodiment and the first embodiment lies in that the axial limiting structures of the anti-detachment rod 4 and the anti-detachment hook ring 3 are different.

[0025] The second embodiment adopts the same hook body 5 and anti-drop hook ring 3 as the first embodiment, while the anti-drop rod 4 is further designed. Specifically, the anti-drop rod 4 includes a bent head and a straight rod portion connected in sequence. The axial cross-section of the anti-drop rod 4 is a "7"-shaped structure, and the transverse part of the "7"-shaped structure is the bent head, and the longitudinal part is the straight rod portion. In the second embodiment, it is necessary to clarify that in the second embodiment, when the hook or the hanging rope is hung in the crane hook and naturally balanced, it is necessary to ensure that the height of the anti-drop hook ring 3 at the tail of the hook in the horizontal direction is above the anti-drop hook ring 3 at the head of the hook, so as to ensure that the anti-drop rod 4 can be effectively positioned after the anti-drop rod 4 is installed.

[0026] Different from the first embodiment, which needs to be positioned by snap-fit, the second embodiment uses the shape design of the anti-slip rod 4, and designs a bent head at one end of the straight rod. When in use, after the straight rod passes through the anti-slip hook ring 3 of the hook tail and the anti-slip hook ring 3 of the hook head in sequence, the bent head is limited and crimped with the anti-slip hook ring 3 of the hook tail. Under the action of gravity, the bent head of the anti-slip rod 4 will automatically fall into the anti-slip ring 3 of the hook head and will not fall off, thereby axially limiting the anti-slip rod 4 and the anti-slip hook ring 3, simplifying the positioning operation under the premise of ensuring reliable limiting. Compared with the original threaded fixing and the snap-fit ​​positioning of the first embodiment, the second embodiment directly uses gravity for hanging and limiting, which is not only stable in positioning, but also simple in operation and low in cost, and it is also convenient for other related types of hooks to be re-reinforced according to this design to enhance the anti-slip effect. The anti-slip rod 4 can be supported by a variety of metal rod-shaped objects, which are easy to load and unload, the materials are easy to obtain, and the replaceability and substitution are strong, which is convenient for on-site use.

[0027] The utility model provides a crane hook, comprising a fixing mechanism 1, a connecting mechanism 2 connected to the lower end of the fixing mechanism 1, and a hook body 5 connected to the lower end of the connecting mechanism 2, wherein the hook body 5 is provided with any one of the above-mentioned anti-hooking devices for cranes. In the actual processing process, the anti-hooking device can be designed on one side or both sides of the hook body 5 as required, so that the hanging rope or hanging ring can be securely fixed on the hook to prevent it from being unhooked. Compared with the design on one side, the design of the anti-hooking device on both sides can further improve the reliability.

[0028] The utility model discloses a crane, which comprises the above-mentioned crane hook.

[0029] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A crane anti-unhooking device, arranged on a crane hook, the crane hook comprising a fixing mechanism (1), a connecting mechanism (2) connected to the lower end of the fixing mechanism (1), and a hook body (5) connected to the lower end of the connecting mechanism (2), characterized in that: It comprises an anti-slip hook ring (3) and an anti-slip rod (4); One end of the hook body (5) is a hook head, and the other end is a hook tail, and the hook tail is fixed to the connecting mechanism (2); An anti-slip hook ring (3) is provided on the same side of the hook head and the hook tail, respectively; the anti-slip rod (4) is inserted through the anti-slip hook rings (3) of the hook head and the hook tail on the same side; the anti-slip rod (4) is axially limitedly connected to any one of the anti-slip hook rings (3).

2. The anti-unhooking device for driving as claimed in claim 1, characterized in that: The anti-slip rod (4) is a metal long-handled rod. After the metal long-handled rod is inserted into the anti-slip hook ring (3) at the hook head and the hook tail, each metal long-handled rod is detachably provided with two limit buckles (6). The two limit buckles (6) are arranged at intervals along the axial length direction of the metal long-handled rod and are respectively located on the outer sides of the anti-slip hook ring (3) at the hook head and the hook tail.

3. The anti-unhooking device for driving as claimed in claim 1, characterized in that: The anti-slip rod (4) comprises a bent head and a straight rod portion which are connected in sequence. After the straight rod portion passes through the anti-slip hook ring (3) at the hook tail and the anti-slip hook ring (3) at the hook head in sequence, the bent head and the anti-slip hook ring (3) at the hook tail are limitedly crimped.

4. The anti-unhooking device for driving as claimed in claim 3, characterized in that: The anti-drop rod (4) has an axial cross section in a "7"-shaped structure, wherein the transverse portion of the "7"-shaped structure is a bent head portion, and the longitudinal portion is a straight rod portion.

5. A crane hook, characterized in that: The invention comprises a fixing mechanism (1), a connecting mechanism (2) connected to the lower end of the fixing mechanism (1), and a hook body (5) connected to the lower end of the connecting mechanism (2), wherein the hook body (5) has an anti-unhooking device for driving as claimed in any one of claims 1 to 3.

6. A driving vehicle, characterized in that: It comprises a crane hook as claimed in claim 4.

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