CN210505251U

CN210505251U - Hook anti-drop lock catch

Info

Publication number: CN210505251U
Application number: CN201920959409.4U
Authority: CN
Inventors: 徐吉祥; 刘贵周; 蒋政学; 张成澍; 李志强; 马彬; 陈北川; 万元
Original assignee: China Construction East China Investment Co Ltd
Current assignee: China Construction East China Investment Co Ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-05-12
Anticipated expiration: 2029-06-24

Abstract

The hook anti-falling lock catch is characterized in that a lock catch pin shaft is arranged in the upper middle of a circular hook main body, a lock catch extending to the end part of the hook main body is connected through the lock catch pin shaft, the lock catch is an integral body formed by two semi-bent elastic sheets, and the middle parts of the lock catches are welded together; the left and right parts of the hook head of the lifting hook are provided with two small hook head bosses, the upper part of each small hook head boss is provided with an elastic sleeve which returns upwards, and the elastic sleeve is arranged on the upper part of each small hook head boss in a sliding fit manner; the device is simple, convenient, safe, reliable, low in cost and convenient to disassemble, assemble and replace.

Description

Hook anti-drop lock catch

Technical Field

The utility model relates to an anticreep device of lifting hook, especially lifting hook anticreep hasp.

Background

At present, an existing hook anti-falling device for a crane or a crane is easy to wear and lose efficacy, and when a heavy object is hoisted by a crane, the hoisted heavy object is easy to separate from a hook due to the swinging of the heavy object, so that unnecessary personal injury or object hitting injury is caused.

Disclosure of Invention

In order to solve the problem that the swinging of the heavy object can easily separate the hung heavy object from the hook, which causes unnecessary personal injury or object striking injury, the utility model provides a hook anti-drop lock catch; the lock catch is simple, convenient, safe, reliable, low in manufacturing cost and convenient to disassemble, assemble and replace.

The utility model provides a technical scheme that its technical problem adopted is: lifting hook anticreep hasp includes: the lifting hook comprises a lifting hook body, a locking pin shaft, an elastic sleeve, a lifting hook head, a small hook head boss, a locking through hole and a locking buckle; the upper middle part of the circular lifting hook main body is provided with a lock pin shaft, the lock pin shaft is connected with a lock extending to the end part of the lifting hook main body, the lock is an integral body formed by two semi-bent elastic sheets, and the middle parts of the lock is welded together; the lifting hook is characterized in that two small hook head bosses are arranged on the left and right of the hook head of the lifting hook, an elastic sleeve which returns upwards is arranged on the upper portion of each small hook head boss, and the elastic sleeve is arranged on the upper portion of each small hook head boss in a sliding fit mode.

A spring device is arranged in the elastic sleeve, one end of a spring of the spring device is connected to the hook main body, and the other end of the spring device is connected to the elastic sleeve; the diameter of the elastic sleeve is slightly larger than that of the hook head of the lifting hook.

The size of the small hook boss is matched with the lock catch through hole.

When in use, the hook is clamped on the small lug boss of the hook on the hook main body through the upper lock buckle through hole of the lock buckle; the lock catch can be attached to the lower part of the hook main body, and the hook operation is not influenced by the leveling of the lock catch; the lock catch can be opened by sliding the elastic sleeve downwards, so that the function of unlocking the lock catch is achieved.

The utility model has the advantages that: the anti-drop lock catch of the lifting hook is simple, convenient, safe and reliable, low in manufacturing cost and convenient to disassemble, assemble and replace.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the structure principle of the present invention.

Fig. 2 is a schematic view of the structural principle of the present invention.

In the figure: 1. the lifting hook comprises a lifting hook body, 2 parts of a locking pin shaft, 3 parts of an elastic sleeve, 4 parts of a lifting hook head, 5 parts of a small lug boss of the lifting hook head, 6 parts of a locking through hole and 7 parts of a locking buckle.

Detailed Description

The utility model provides a technical scheme that its technical problem adopted is: lifting hook anticreep hasp includes: the lifting hook comprises a lifting hook body 1, a locking pin shaft 2, an elastic sleeve 3, a lifting hook head 4, a small hook head boss 5, a locking through hole 6 and a lock catch 7; the upper middle part of the circular lifting hook main body 1 is provided with a lock pin shaft 2, the lock pin shaft 2 is connected with a lock catch 7 extending to the end part of the lifting hook main body, the lock catch 7 is an integral body formed by two semi-bent elastic sheets, and the middle parts of the lock catch 7 are welded together; two small hook head bosses 5 are arranged on the left and right parts of a hook head 4 of the lifting hook, an elastic sleeve 3 which returns upwards is arranged on the upper part of the small hook head boss 5, and the elastic sleeve 3 is arranged on the upper part of the small hook head boss 5 in a sliding fit mode.

A spring device is arranged in the elastic sleeve 3, one end of a spring of the spring device is connected to the hook main body 1, and the other end of the spring device is connected to the elastic sleeve; the diameter of the elastic sleeve 3 is slightly larger than that of the hook head 4 of the hook.

The size of the small hook boss 5 is matched with the lock catch through hole 6.

When in use, the lock catch 7 is clamped on the small lifting hook boss 5 on the lifting hook main body 1 through the lock catch through hole 6; the lock catch 7 can be attached to the lower part of the hook body 1, and the hook operation is not influenced by the leveling; by sliding the elastic sleeve 3 downwards, the lock catch 7 can be opened, and the function of unlocking the lock catch 7 is achieved.

Claims

1. Lifting hook anticreep hasp includes: the lifting hook comprises a lifting hook body (1), a locking pin shaft (2), an elastic sleeve (3), a lifting hook head (4), a small hook head boss (5), a locking through hole (6) and a lock catch (7); the method is characterized in that: the upper middle part of the circular lifting hook main body (1) is provided with a lock catch pin shaft (2), a lock catch (7) extending to the end part of the lifting hook main body is connected through the lock catch pin shaft (2), the lock catch (7) is a whole formed by two semi-bent elastic sheets, and the middle parts of the lock catches (7) are welded together; the lifting hook is characterized in that two small hook head bosses (5) are arranged on the left and right of a hook head (4) of the lifting hook, an elastic sleeve (3) returning upwards is arranged on the upper portion of each small hook head boss (5), and the elastic sleeve (3) is arranged on the upper portion of each small hook head boss (5) in a sliding fit mode.

2. The drop-proof shackle of a lifting hook as claimed in claim 1, wherein: a spring device is arranged in the elastic sleeve (3), one end of a spring of the spring device is connected to the hook main body (1), and the other end of the spring device is connected to the elastic sleeve; the diameter of the elastic sleeve (3) is slightly larger than that of the hook head (4) of the lifting hook.

3. The drop-proof shackle of a lifting hook as claimed in claim 1, wherein: the size of the small hook head boss (5) is matched with the lock catch through hole (6).