CN2307888Y - Anti-drill lock core - Google Patents

Abstract

A lock core against drilling is composed of a lock seat with a built-in lock core, locating holes at proper positions on the end surface of said lock core for installing locating pins and springs, a stop block in said boss for pressing against lock core, a central slot on one end surface of said stop block, and a locating ring with through hole for fixing said stop block to lock seat. The utility model discloses prevent boring effectually, it is firm practical.

Description

Anti-drill lock core

The utility model relates to an anti-drilling lock core, in particular to a solid and practical design with remarkable anti-drilling effect.

At present, social security is deteriorating and thefts are frequent, so locks have been widely used by people. However, with the increase in the use of destructive tools, the destructive rate of locks has increased relatively. Based on this, someone has developed a related design, which is mainly composed of a key and a combination lock seat. Constituted, the key extends a handle from the body, and a symmetrical indented neck is set between the handle and the body, and the combined lock seat is pinned to each other by the inner lock seat, the outer lock seat and the fixing ring, wherein the inner lock seat A fixed pin hole is set on the edge side, and the outer lock seat is a seat that can cover the inner lock seat, and a pin hole is provided on the edge side of the seat body and an outer lock hole is set at the top opposite to the inner lock hole, and the fixed ring sleeve It is fixed on the periphery of the outer lock base and fixed with a bolt. It is characterized in that the neck of the key can just pass through the outer lock hole of the outer lock base, so that the key body can be completely inserted into the inner lock base.

Looking at the above-mentioned structure in detail, it is not difficult to find that there are still the following deficiencies. The main reason is that an outer lock seat is added to strengthen the anti-theft effect in combination with the lock seat. The key is symmetrically recessed between the handle and the body to facilitate the key to penetrate When the key is turned, the area of the depression is reduced, which can easily cause the key to be twisted or deformed due to stress concentration when the key is subjected to torque, making it difficult to insert the key.

The purpose of the utility model is to provide an anti-drilling lock core, which has a good anti-drilling effect, is firm and practical.

In order to achieve the above purpose, the utility model is mainly composed of a lock seat with a built-in lock core, a block and a retaining ring sleeve. A rotatable stop is installed at the end of the lock seat with a built-in lock core. The lock hole of the lock core is provided with a slotted hole, and a retaining ring is set at the end of the corresponding block to fix the chain seat, so as to limit the block from coming out. The lock seat also protrudes a ring of convex walls at a suitable place on the seat surface, and the retaining ring sleeve is provided with a corresponding concave shape of the convex wall at one end. The convex wall of the lock seat is concavely provided with a groove at the connecting part of the seat surface, and a ring groove is concavely set in the pit of the retaining ring sleeve; Inside, and solidify the lock seat and retaining ring. And the lock core passes through a positioning hole at an appropriate place on the end face, and a positioning pin and a spring are built in the positioning hole. The retaining ring and the block are heat-treated components to increase hardness. The lock hole of the lock core and the slotted hole of the stopper form corresponding shapes, such as: a font, a cross or other corresponding key shapes.

After adopting the above structure, when a thief destroys the lock core with an electric drill or other tools, the stopper rotates with the external force so that it cannot be locked and cut. The anti-drilling effect is remarkable, and it is firm and practical.

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Fig. 1 is a three-dimensional exploded view of the utility model;

Fig. 2 is a combined sectional view of the utility model;

Fig. 3 is the exterior view of another embodiment of the utility model;

Fig. 4 is an appearance view of another embodiment of the utility model.

First of all, please refer to Fig. 1, the utility model is composed of a lock base 1, a stopper 2, a retaining ring sleeve 3, etc. and a clasp 6, wherein: a lock core with a lock hole 111 is built in the lock base 1 11, and the positioning hole 112 is drilled at the appropriate place of the lock core 11, for the positioning pin 4 and the spring 5, and a ring of convex walls 12 protrudes outward from the seat edge and forms a ring on the outer ring surface of the convex wall 12. Groove 121; Block 2 is a heat-treated rigid body, with a convex surface 21 on one end surface, and a slot hole 211 is cut to the center on the end edge and a concave arc 22 is provided on the other end surface; retaining ring A through hole 31 corresponding to the convex surface 21 of the stopper 2 is pierced in the center of the sleeve 3, and a concave hole 32 is formed on one end surface, and a ring groove 321 is recessed on the inner ring side of the concave hole 32; when assembling and implementing, please match Referring to Fig. 2, a spring 5 and a positioning pin 4 are placed in the positioning hole 112 of the lock base 1, and the stopper 2 is set in the convex wall 12 of the lock base 1, and the cover is against the lock core 111, and its depression 22 is suitable for The positioning pin 4 is stuck, so that the slot hole 211 and the lock hole 11 of the lock core 11 are aligned and coincident, and the buckle ring 6 is set in the groove 121 of the lock seat 1, and the retaining ring sleeve 3 is used to cover it. , the pit 32 covers the convex wall 12 of the lock base 1, and the buckle ring 6 can also be accommodated in the ring groove 321 of the retaining ring sleeve 3 to be fixed to the lock base 1.

If a thief destroys the lock core 11 with an electric drill or other tools, the stopper 2 is a heat-treated cover body that is hardened and covers the surface of the lock core 11. When drilling, the stopper 2 rotates with the external force. As a result, the positioning pin 4 stuck in the recess 22 of the stopper 2 moves down with the rotation of the stopper 2 against the spring 5, so that the stopper 2 rotates smoothly, and the thief cannot destroy it due to the hardness of the stopper 2 itself; If when opening normally, the key is partially pierced and rotated in the slot 211 of the block 2, so that the positioning pin 4 can be pushed by the spring 5 and be stuck in the depression 22 for positioning, so that the slot 211 and the lock hole 111 are superimposed on each other, and the key is rotated to turn the lock core 11 to open or lock.

The above figures take the inline lock hole 111 as an example. In actual use, as shown in FIGS. Shape, its right protection all falls in the category of the present utility model.

Claims (5)

1, a kind of anti-drilling core, main being established by lock, block and the maintenance ring set group of built-in core forms, it is characterized in that: a rotating block is installed in the end activity of the built-in core of lock, and the lockhole of the relative core of block is provided with slotted eye, and establishes the chain seat of a maintenance ring set in the end of corresponding block.

2, anti-drilling core as claimed in claim 1 is characterized in that: suitable place protrudes out the protruding wall of a circular row in seat surface, and maintenance is located on an end and offers corresponding protruding wall profile pit.

3, anti-drilling core as claimed in claim 1 is characterized in that: core wears locating hole in the suitable place of end face, and in built-in alignment pin of locating hole and spring, block one end face forms a depression relatively, and supports the fastening position by alignment pin.

4, anti-drilling core as claimed in claim 2 is characterized in that: the protruding wall of lock is arranged with groove in the seat surface connecting place, is arranged with circular groove in maintenance ring set pit; Clasp is arranged in the groove, and supports with maintenance ring set lid, and button is butted in the circular groove, and fixed lock and maintenance ring set.

5, anti-drilling core as claimed in claim 1 is characterized in that: the lockhole of core and the slotted eye of block form respective shapes.

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