CN2879876Y

CN2879876Y - Automatic locking type hook

Info

Publication number: CN2879876Y
Application number: CN 200420067704
Authority: CN
Inventors: 王璟星
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-22
Filing date: 2004-06-22
Publication date: 2007-03-21
Anticipated expiration: 2014-06-22

Abstract

A main hook and a secondary hook share one rotating fulcrum to combine and assemble an automatic locking type hook. The technologic points of the product shape and structure are in that: the arc part of the main hook is composed by the connection between a semicircle with the radius of R and an arc with the radius of 2R and with the circle centre of the rotating fulcrum (3); the arc part of the secondary hook is composed by the connection between a semicircle with the radius of R and an arc with the radius of 2R and with the circle centre of the sliding centre point (6). The hook can open before hang and lock after hang automatically. An upward strength is only need to make the hook open automatically when taking down the hook. The utility model is an automatic locking type hook.

Description

The auto lock hook

Affiliated technical field

The place of different other hooks of the utility model auto lock hook is to utilize lever principle that auxiliary hook is rotated, and the energy auto lock utilizes the auxiliary hook deadweight to make its rotation, can automatic open hook.

Background technology

At present, the locking hook that the crowd knows is to be combined by main hook and pair, needs by as external force such as springs, and is to reach the purpose of locking, very inconvenient when hanging and taking off.

Summary of the invention

More numerous in order to overcome existing hook structure, hang up, take off inconvenient deficiency, the utility model provides a kind of auto lock hook, and this hook is not only simple in structure, and can conveniently hang and take off.

The technical scheme that its technical problem that solves the utility model adopts is: establish a rotating fulcrum at the front hook end of main hook, load onto an auxiliary hook, when main hook was motionless, auxiliary hook can rotate up and down.The auto lock hook is in before suspension and opens shape automatically.When it being suspended on cross bar or the fixing point,, auxiliary hook is rotated, just auto lock because deadweight has a downward gravity.When taking off auto lock when hook, if up or the below with an active force upwards, at this moment conducting oneself with dignity because of auxiliary hook has a downward gravity to rotate, and then opens automatically.

Be security insurance, can on main hook, adorn a locking safety fastener (5), on auxiliary hook, adorn a guiding safety fastener (4).

The beneficial effects of the utility model are: can hang the difficult place that reaches of eminence or lower staff, and easy to use.Its structure is also simple.

Description of drawings

Fig. 1 is the major and minor hook combination automatic open configuration figure in back of the utility model auto lock hook.

Fig. 2 is the auto lock state diagram.

Fig. 1 main hook, 2 auxiliary hooks, 3 rotating fulcrums, 4 guiding safety fasteners, 5 locking safety fasteners, 6 slip central points.

The specific embodiment

In Fig. 1, the rotating fulcrum of the front hook end of main hook (3) overlaps assembling with auxiliary hook rotating fulcrum (3).The arch section of main hook is by being the semicircle of radius with R and be that center of circle 2R is that the circular arc of radius is formed by connecting with rotating fulcrum (3); The arch section of auxiliary hook is by being the semicircle of radius with R and be that center of circle 2R is that the circular arc of radius is formed by connecting with slip mid point (6).Then, locking safety fastener (5) is installed on main hook, guiding safety fastener (4) is installed on the auxiliary hook.

In embodiment illustrated in fig. 2, when auto lock is suspended on cross bar or the fixing point, promptly be in the auto lock state.

Claims

1, a kind of auto lock hook, it is characterized in that: main hook and auxiliary hook have a rotating fulcrum; Front hook end rotating fulcrum (3) at main hook overlaps assembling with auxiliary hook rotating fulcrum (3); The arch section of main hook is by being the semicircle of radius with R and be that center of circle 2R is that the circular arc of radius is formed by connecting with rotating fulcrum (3); The arch section of auxiliary hook by be the semicircle of radius and slip central point (6) with R for center of circle 2R be that the circular arc of radius is formed by connecting; When main hook was motionless, auxiliary hook can rotate up and down.