CN2438782Y

CN2438782Y - Lock cylinder key-hole closing device

Info

Publication number: CN2438782Y
Application number: CN 00249128
Authority: CN
Inventors: 叶高呈
Original assignee: DONGQUAN HARD-WARE PRODUCTS Co Ltd SHANGHAI
Current assignee: DONGQUAN HARD-WARE PRODUCTS Co Ltd SHANGHAI
Priority date: 2000-09-07
Filing date: 2000-09-07
Publication date: 2001-07-11
Anticipated expiration: 2010-09-07

Abstract

The utility model provides a lock core key-hole closing device. The end side of the lock core is provided with at least two inward concave planes and inward concave grooves with the same number of the inward concave planes, a slide pin core gate is respectively arranged on each inward concave plane, the inner part of each inward concave groove is respectively provided with an elastic element, and a lock core gate is provided with a guide hole with the hole diameter smaller than that of a lock hole. When the key is not inserted, lock core gates have a contact with each other via the push and the support of the elastic element to form the guide hole with the hole diameter smaller than that of the lock hole; when the key is inserted, a guide end of the key is shifted from the guide hole to the lock core gates to compress the elastic elements until the lock hole is exposed, so the key can be inserted into the lock for unlocking, and the lock core gates can return to the gate closed state when the key is taken out.

Description

Lock core keyhole closes brake gear

The utility model relates to a kind of miscellaneous part of lock, particularly a kind of escutcheon.

At present, lockhole on the lock core of lock commonly used mostly is to be designed to and the identical shaped lockhole of key cross section outline, because this lockhole aperture efficiency is bigger, except may causing unsafe factor, also enter foreign matter, thereby make troubles to the user than being easier to the self-locking hole opening.

The purpose of this utility model is to provide a kind of improved lock core keyhole to close brake gear, and it can strengthen the safety of lockset, and can prevent that big foreign matter from entering the lock core inner chamber, provides convenience to the user.

Utility model is achieved in that lock core keyhole closes brake gear, comprise lock core, being characterized in that lock core is distolateral establishes at least two interior concave planes, and the interior chase identical with indent plane quantity, in each, establish the lock core lock of slip on the concave plane respectively, establish flexible member in each in the chase respectively, flexible member one end is held in the lock core lock, establishes the guide hole of aperture less than lockhole on the lock core lock.

Interior concave plane can be symmetrically arranged two indent planes to be formed, and corresponding interior chase is established in the outside of concave plane in each; The lock core lock is en plaque, the opposite side of its relative guide hole establish can ccontaining flexible member one end groove.

The lock core brake structure that the utility model holds with flexible member, when not stretching into the state of key, the lock core lock is under the elastic force effect of flexible member, permanent each lock core lock that keeps is in the position that hides lockhole, thereby guarantee that lock core is with the hole of the minimum side that exposes outside outward, can increase lockset and be difficult for can being prevented also that by sled safety surreptitiously larger-size object or pollutant from falling in the lockhole, can avoid damaging the trouble that the lock core member maybe need be cleared up.

The concrete structure of utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is that the utility model lock core keyhole closes brake gear and is installed on axonometric drawing in end cap and the tapered end.

Fig. 2 is that the utility model lock core keyhole closes the brake gear axonometric exploded view.

Fig. 3 is the schematic diagram that Fig. 2 structure key takes off end cap when not inserting.

Fig. 4 takes off the schematic diagram of end cap when being the insertion of Fig. 2 structure key.

Fig. 5 is the key schematic diagram of the utility model configuration.

With reference to Fig. 1,2, lock core keyhole closes brake gear and includes lock core 1, lock core lock 2, flexible member 3, wherein:

On distolateral 10 the end face of lock core 1, can be provided with one group in concave plane 11, Figure 2 shows that two symmetrically arranged in concave planes 11, its quantity also can be three or more, its position then is uniformly distributed in the outside of lockhole 13; Chase 12 in one is established in outside of concave plane 11 relative lockholes 13 in each respectively;

Lock core lock 2 is en plaque, and its side and two transverse planes are with lock core 1 and end cap 4 respectively and are slidingly matched, and uses to keep lock core lock 2 in the space that the interior concave plane 11 and the end cap 4 of lock core 1 constitutes slippage freely; One side of lock core lock 2 is established guide hole 20, this guide hole 20 only is the part of whole guide hole 20, guide hole 20 on each lock core lock 2 then constitutes the guide hole 20 of complete a guided key 5 (as Fig. 5), and the aperture of complete guide hole 20 is less than the aperture of lockhole 13; The opposite side of lock core lock 2 relative guide holes 20 is established a groove 21, and the groove 21 that forms after 2 punching out of lock core lock also can leave down curved flange 210, and flange 210 can slide in interior chase 12.

Flexible member 3 can be cylindrical helical spring, oval section volute spring, sheet spring or similar other springs, flexible member 3 is separately positioned in each interior chase 12, flexible member 3 one ends are held in the top of chase 12 in the lock core 1, and its other end then is held in the bottom of the groove 21 of lock core lock 2.

During use, key does not as shown in Figure 3 insert state, and lock core lock 2 moves to lockhole 13 directions along the interior concave plane 11 of lock core 1 under the elastic force effect of flexible member 3 at this moment, after the end top for the treatment of each lock core lock 2 is in contact with one another, promptly form the complete guide hole 20 of an aperture less than lockhole 13 apertures.Key as shown in Figure 4 inserts state, at this moment, guide end 50 of key 5 (as Fig. 5) spherical in shape usually or taper, guide end 50 can be passed lock core lock 2 laterally along guide hole 20, lock core lock 2 compression elastic elements 3 are until exposing lockhole 13 fully, and key 5 can stretch into lockhole 13 and unblank.Finish unblank after, extract key 5 out, can return back to lock core lock 2 shown in Figure 3 and be the lock state that closes.

Claims

1, a kind of lock core keyhole closes brake gear, comprises that lock core is characterized in that:

A. distolateral (10) of lock core (1) are provided with at least two interior concave planes (11), and the interior chase (12) identical with indent plane quantity;

B. in each, establish the lock core lock (2) of slip on concave plane (11) respectively;

C. establish flexible member (3) in each in the chase (12) respectively, flexible member (3) one ends are held in lock core lock (2);

D. establish the guide hole (20) of aperture on the lock core lock (2) less than lockhole (13).

2, lock core keyhole according to claim 1 closes brake gear, it is characterized in that interior concave plane (11) can be concave plane (11) formation in symmetrically arranged two, and interior chase (12) is established in the outside of concave plane in each (11).

3, lock core keyhole according to claim 1 closes brake gear, it is characterized in that lock core lock (2) is en plaque, the opposite side of its relative guide hole (20) establish can ccontaining flexible member (3) groove (21).