CN201738654U

CN201738654U - Folding key

Info

Publication number: CN201738654U
Application number: CN2010202653349U
Authority: CN
Inventors: 廖维羽
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-20
Filing date: 2010-07-20
Publication date: 2011-02-09
Anticipated expiration: 2020-07-20

Abstract

The utility model discloses a folding key comprising a key (1), wherein a folding strip (2) is hinged on a key handle (1a) of the key (1) and extends to the back of the key (1), a stop boss (1b) is arranged on the key handle (1a) at one side of the folding strip (2), and a tension spring (3) is connected between the key handle (1a) at the side and a middle section of the folding strip (2). The key handle of the key is shorter. In addition, because the folding strip is arranged, the rotary unlocking of a lock is realized by regulating the key through folding, so that the key can unlock the lock in the narrow space of an anti-theft protection block, and the operation is convenient.

Description

Folding key

Technical field

The utility model relates to a kind of key, relates in particular to the key of folding elongation.

Background technology

Be locked in people's daily life by people and be widely used in the middle of house, trip instrument, safety cabinet and the drawer.Prevent the harm of lawless person, protection people's safety of life and property to people.But because the keyhole of lockset that current people use all is to be exposed to the lock body outside, like this, the lawless person is easy to adopt the tool used in crime as master key and so on, insert in the keyhole of lock core, rotational lock core is opened lock by force, has caused opportunity to the lawless person.So the applicant has invented a kind of antitheft barrier block, conventional key, master key can not extend into lockhole, can not utilize some hard things to stretch into lockhole picking lock by force.This just need provide corresponding improved key.

The utility model content

But technical problem to be solved in the utility model is to provide a kind of key of length folding variation.

The technical solution of the utility model is as follows: a kind of folding key, comprise key, its key is: be hinged with the folding bar on the shank of the key of described key, described folding bar stretches to the key rear, the shank of the key of described folding bar one side is provided with positive stop lug boss, be connected with extension spring between the shank of the key of this side and the folding bar stage casing, this folding bar afterbody has the circular hole of parbuckle.Move the folding bar, make the unnecessary positive stop lug boss in gap between folding bar and the shank of the key, cross positive stop lug boss, since the effect of extension spring, the folding of folding bar.Pulling is enclosed within the stay cord of folding bar afterbody circular hole, and the folding of folding bar is withdrawed from whole key again.Move the folding bar, positive stop lug boss is crossed in the stretching extension spring, and the folding bar is against on the positive stop lug boss, and the folding bar increases the length of key towards the key rear.

Above-mentioned positive stop lug boss props up the thick other end of the end attenuation gradually of folding bar.The folding bar is become by the folding shape and stretches shape, and is very smooth and easy.

All have through hole as optimizing on above-mentioned the shank of the key and the folding bar, described extension spring two ends are hooked through hole on the shank of the key and the through hole on the folding bar respectively.

Beneficial effect: the shank of the key of the utility model key is shorter, and other is provided with the folding bar, adjusts key by folding and realizes rotarily opening lock, makes key can open lock in the narrow space of antitheft barrier block, and easy to operate.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the upward view of Fig. 1;

Fig. 3 is the schematic diagram of the utility model bending state;

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As Fig. 1, Fig. 2, shown in Figure 3, a kind of folding key of the utility model, mainly constitute by key 1, folding bar 2 and extension spring 3, be hinged with folding bar 2 on the shank of the key 1a of described key 1, described folding bar 2 stretches to key 1 rear, and the shank of the key 1a of described folding bar 2 one sides is provided with positive stop lug boss 1b, and has through hole, folding bar 2 stage casings also have through hole, are connected with extension spring 3 between the shank of the key 1a of this side and folding bar 2 stage casings.Folding bar 2 afterbodys have the circular hole 2a of parbuckle.Described extension spring 3 two ends are hooked through hole on the shank of the key 1a and the through hole on the folding bar 2 respectively.Described positive stop lug boss 1b props up the thick other end of the end attenuation gradually of folding bar 2, and the side is a wedge shape.

Although below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic rather than determinate; those of ordinary skill in the art is under enlightenment of the present utility model; under the prerequisite of the utility model aim and claim; can make multiple similar expression, such conversion all falls within the protection domain of the present utility model.

Claims

1. folding key, comprise key (1), it is characterized in that: be hinged with folding bar (2) on the shank of the key (1a) of described key (1), described folding bar (2) stretches to key (1) rear, the shank of the key (1a) of described folding bar (2) one sides is provided with positive stop lug boss (1b), be connected with extension spring (3) between the shank of the key of this side (1a) and folding bar (2) stage casing, this folding bar (2) afterbody has the circular hole (2a) of parbuckle.

2. according to the described folding key of claim 1, it is characterized in that: described positive stop lug boss (1b) props up the thick other end of the end attenuation gradually of folding bar (2).

3. according to the described folding key of claim 1, it is characterized in that: all have through hole on described the shank of the key (1a) and the folding bar (2), described extension spring (3) two ends are hooked through hole on the shank of the key (1a) and the through hole on the folding bar (2) respectively.