CN216638648U

CN216638648U - Hook anti-falling device

Info

Publication number: CN216638648U
Application number: CN202122527060.7U
Authority: CN
Inventors: 祖衡; 丁志军; 容晨光; 武勇; 靳佳佳; 王双乾; 范师师; 李凯; 李慧; 王文辉
Original assignee: Shijiazhuang Iron and Steel Co Ltd
Current assignee: Shijiazhuang Iron and Steel Co Ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-05-31
Anticipated expiration: 2031-10-20

Abstract

The hook unhooking prevention device comprises a hook, a shifting piece, a mounting ring, a U-shaped chuck, a groove and a strong magnet; a plectrum is arranged at the opening of the lifting hook, and the plectrum is a pipe clamp structure consisting of a left steel plate and a right steel plate which are the same; the fixed end of the shifting sheet is hinged at the root of the lifting hook; the root part of the lifting hook is connected with a mounting ring which can be disassembled in half, and two steel plates of the shifting piece are respectively hinged with the half mounting ring; the two steel plates are respectively positioned at the left side and the right side of the lifting hook, and the free end of the shifting piece is provided with a U-shaped chuck; the ends of the steel plates are connected through a U-shaped chuck; two rectangular grooves which are parallel to each other are arranged at the free ends of the two shifting pieces; the free ends of the two shifting pieces arranged in the U-shaped chuck of the powerful magnet are provided with two rectangular grooves which are parallel to each other. The advantages are that: the operation is rapid and convenient, the installation is simple and convenient, the operation efficiency is improved, the labor amount of installation and maintenance personnel is reduced, and the safety factor of the hook device is greatly improved.

Description

Hook anti-disengaging device

Technical Field

The utility model relates to the technical field of auxiliary equipment of hoisting machinery, in particular to an anti-unhooking device for a crane hook.

Background

The existing hook unhooking prevention device is generally provided with a spring type blocking piece at an opening of a hook for blocking, and the existing hook unhooking prevention device has the following defects: the method comprises the following steps that 1, when a sling of a lifting appliance is hung and disassembled, an anti-unhooking hook needs to be manually opened, requirements on driver operation, ground operators and station positions and the like are high, and operability is poor; the trunnions of some lifting appliances are large in size, the spring type unhooking prevention device cannot reset and loses working capacity, and the universality is poor; 3, the thin steel plate and the spring adopted by the unhooking prevention device are low in strength, easy to damage and lose working capacity in the using process, high in failure occurrence frequency, inconvenient to maintain and cause great potential safety hazards to ground personnel and equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the conventional anti-unhooking device and provide the anti-unhooking device for the lifting hook, which has better universality, reliability and operability.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a hook anti-drop device comprises a hook; the method is characterized in that: the device also comprises a shifting piece, a mounting ring, a U-shaped chuck, a groove and a strong magnet; a plectrum is arranged at the opening of the lifting hook, and the plectrum is a pipe clamp structure which is formed by a left steel plate and a right steel plate which are the same and connected by a pin shaft; the fixed end of the shifting sheet is hinged to the root of the lifting hook; the root of the lifting hook is connected with a mounting ring which can be disassembled in half and half, and two steel plates of the shifting piece are respectively hinged with the half mounting ring; the two steel plates are respectively positioned at the left side and the right side of the lifting hook, and the free end of the shifting piece is provided with a U-shaped chuck; the ends of the steel plates are connected through a U-shaped chuck; two rectangular grooves which are parallel to each other are arranged at the free ends of the two shifting pieces; the free ends of the two shifting pieces arranged in the U-shaped chuck of the powerful magnet are provided with two rectangular grooves which are parallel to each other. It is also characterized in that: the thickness of the two steel plates forming the shifting piece is 6-10 mm. The height of the two steel plates is 4-6 cm.

The utility model has the advantages that the opening of the lifting hook is closed by the magnetism of the magnet, the opening of the lifting hook is opened by the self weight of the hanging object, and the hanging object can be detached by an operator pressing the shifting sheet downwards.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a top view of the paddle 2 of fig. 1.

Labeled as, 1. hook; 2. a shifting sheet; 3. a mounting ring; 4, a U-shaped chuck; 5. a groove; 6. a strong magnet.

Detailed Description

Example 1:

the embodiments of the present invention will be described in further detail with reference to the accompanying drawings: as shown in fig. 1 and 2: comprises a lifting hook 1, a plectrum 2, a mounting ring 3, a U-shaped chuck 4, a groove 5 and a strong magnet 6; a plectrum 2 is arranged at the opening of the lifting hook 1, and the plectrum 2 is a pipe clamp structure which is formed by a left steel plate and a right steel plate which are the same and connected by a pin shaft; the fixed end of the plectrum 2 is hinged with the root part of the lifting hook 1; the root part of the lifting hook 1 is connected with a mounting ring 3 which can be disassembled in half, and two steel plates of the plectrum 2 are respectively hinged with the half mounting ring 3; the two steel plates are respectively positioned at the left side and the right side of the lifting hook 1, and the free end of the plectrum 2 is provided with a U-shaped chuck 4; the ends of the steel plates are connected through a U-shaped chuck 4; two rectangular grooves 5 which are parallel to each other are arranged at the free ends of the two shifting pieces 2; the strong magnet 6 is arranged in two rectangular grooves 5 which are parallel to each other and are arranged at the free ends of the two shifting pieces 2 in the U-shaped chuck 4. The principle of the utility model is as follows: lifting hook 1 and the mousing-hook device who sets up at 1 opening part of lifting hook include one end and lifting hook root articulated plectrum 2, and the powerful magnet 6 of 2 free ends of plectrum adsorbs under magnetic force and seals the lifting hook opening at lifting hook pointed end inboard. The operation of the embodiment is simpler and more convenient, the reliability is better, and the poking piece 2 can close the opening of the lifting hook 1 under the action of magnetic force; when the anti-unhooking device is opened, the poking piece 2 is slightly pressed or the anti-unhooking device is automatically hung by the aid of the self weight of the hung object, and the operation is convenient and fast. Most connections of the whole device are hinged, the structure is stable and reliable, and the maintenance and the replacement are also convenient. In order to facilitate the pick 2 to be adsorbed to the inner side of the tip of the lifting hook 1, a strong magnet 6 is arranged at the front end of the pick 2. In order to facilitate the installation of the strong magnet 6, a group of parallel grooves 5 are formed in the middle upper ends of the two shifting piece shifting pieces 2, and the ends of the two shifting piece shifting pieces are connected in a sealing mode through U-shaped clamping heads 4. The plectrum 2 is the pipe clamp structure of controlling two the same steel sheet constitutions, and two steel sheets are located the left and right sides of lifting hook 1 respectively, and the steel sheet tip is through round pin hub connection. By adopting the pipe clamp structure, the strength and the organization structure of the lifting hook 1 can not be damaged, and the universality is improved. In order to better maintain and replace the whole unhooking-proof device, a mounting ring 3 which can be disassembled into two halves is arranged at the root part of the lifting hook 1, and two steel plates of the shifting piece 2 are respectively hinged with the half mounting ring 3. This collar 3 can be fixed to on most ordinary lifting hook, improves the commonality, maintains when needs to the mousing-hook device and makes accessible collar 3 pull down its whole, improves the convenience of maintenance. Utilize 2 tip strong magnet 6's of plectrum magnetic force to seal the lifting hook opening, can guarantee the mousing-hook performance of lifting hook, only need manual pressing downwards when opening mousing-hook device or utilize to hang the thing dead weight open plectrum 2 can, the operation is swift convenient, simple installation, has not only improved the efficiency of operation, has still alleviateed installation and maintainer's the amount of labour to very big improvement couple device's factor of safety. The thickness of the steel plate of the plectrum 2 is 6mm so as to improve the structural strength of the device and facilitate the fixation of the clamping head, and the height of the steel plate is 4cm so as to facilitate the installation of the strong magnet 6.

Example 2: the above is the same as example 1 except that: the thickness of the steel plate of the plectrum 2 is 10mm so as to improve the structural strength of the device and facilitate the fixation of the clamping head, and the height of the steel plate is 6cm so as to facilitate the installation of the strong magnet 6.

Example 3: the above is the same as example 1 except that: the thickness of the steel plate of the shifting piece 2 is 8mm so as to improve the structural strength of the device and facilitate the fixation of the clamping head, and the height of the steel plate is 5cm so as to facilitate the installation of the strong magnet 6.

Claims

1. A lifting hook anti-unhooking device comprises a lifting hook (1); the method is characterized in that: the device also comprises a shifting sheet (2), a mounting ring (3), a U-shaped chuck (4), a groove (5) and a strong magnet (6); a plectrum (2) is arranged at the opening of the lifting hook (1), and the plectrum (2) is a pipe clamp structure which is formed by a left steel plate and a right steel plate which are the same and connected by a pin shaft; the fixed end of the shifting sheet (2) is hinged to the root of the lifting hook (1); the root part of the lifting hook (1) is connected with a mounting ring (3) which can be disassembled in half, and two steel plates of the plectrum (2) are respectively hinged with the half mounting ring (3); the two steel plates are respectively positioned at the left side and the right side of the lifting hook (1), and the free end of the shifting piece (2) is provided with a U-shaped clamping head (4); the ends of the steel plates are connected through a U-shaped chuck (4); two rectangular grooves (5) which are parallel to each other are arranged at the free ends of the two shifting pieces (2); the free ends of the two shifting pieces (2) of the strong magnet (6) arranged in the U-shaped clamping head (4) are provided with two rectangular grooves (5) which are parallel to each other.

2. The drop prevention device for a lifting hook as claimed in claim 1, wherein: the thickness of the two steel plates forming the shifting piece (2) is 6-10 mm.

3. The drop prevention device for a lifting hook as claimed in claim 1, wherein: the height of the two steel plates is 4-6 cm.