CN2307888Y

CN2307888Y - Anti-drill lock core

Info

Publication number: CN2307888Y
Application number: CN 97224174
Authority: CN
Inventors: 陈振荣
Original assignee: 蔡清田
Priority date: 1997-08-11
Filing date: 1997-08-11
Publication date: 1999-02-17
Anticipated expiration: 2007-08-11

Abstract

The utility model relates to an anti-drilling lock core which is mainly composed of a lock seat, a limit stop, a position fixing ring, etc. The lock core is arranged in the lock seat, the proper position of the end surface of the lock core is penetrated with a positioning hole used for the arrangement of a positioning pin and a spring. An inner hollow flange is shaped on one end of the lock seat outwards, and the limit stop is arranged in the flange to cover and abut on the lock core. One end surface of the limit stop is convexly extended with a convex surface, the end edge of the limit stop is provided with a slot hole in a cutting way towards the center of the limit stop, and the proper position of the other end surface of the limit stop is provided with a dent which is clamped and positioned by a positioning pin in a concave way. Besides, a position fixing ring sleeve provided with a through hole is sheathed, bunted and fixed oppositely to the lock seat. The utility model has the advantages of favorable anti-drilling effect, firmness and practicality.

Description

Anti-drilling core

The utility model relates to a kind of anti-drilling core, refers to that especially a kind of anti-drilling effect is remarkable, and the design of firm practicality.

Social security worsens at present, the deathwatch is kept pouring in, so lockset is extensive use of by people, yet, along with the tool for destroying utilization rate improves, relatively increase the destructive rate of lockset, base this, the someone develops relevant design, it is mainly constituted by key and in conjunction with lock, key extends a handle by body, and offers the symmetry neck that caves between handle and body, and in conjunction with lock by interior lock, outer lock and retainer ring are sold mutually and are closed, wherein, interior lock is offered fixed pin holes in the edge side, and outer lock be one can cover in the pedestal of lock, and in pedestal edge side establish the tool pin-and-hole and in the top relatively in the lockhole place establish exterior lockhole, and Fixing shrink ring is fixed in the periphery of outer lock, and set firmly with latch, its feature is to be: the neck of key just can make the body of key can be inserted in interior lock fully by the exterior lockhole of outer lock.

The detailed said structure of seeing, be not difficult to realize that it has remained following disappearance, mainly because of adding a cover an outer lock for strengthening anti-theft effect in conjunction with lock, key is opened symmetry and is caved between handle and body, in order to the key turn that stretches through, when pulling key, its recess reduces because of area, very easily cause key when bearing torsion, easily stress is concentrated and is twisted off or be out of shape, and causes and inserts the difficulty of pulling.

The purpose of this utility model promptly is to provide a kind of anti-drilling core, makes it anti-drilling effective, firm practicality.

For reaching above-mentioned purpose, the utility model is mainly established by lock, block and the maintenance ring set group of built-in core and is formed, a rotating block is installed in the end activity of the built-in core of lock, the lockhole of the relative core of block is provided with a slotted eye, and establish the maintenance ring set lock that is connected in the end of corresponding block, can't deviate from limit stop.Lock also protrudes out the protruding wall of a circular row in the suitable place of seat surface, and maintenance is located on the pit that an end is offered corresponding protruding wall profile.The protruding wall of this 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.And 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.Maintenance ring set and block are to improve the member of hardness once Overheating Treatment.The lockhole of core and the slotted eye of block form corresponding shape, as the shape of: yi word pattern, cross or other corresponding key.

After adopting said structure, the utility model is when meeting the thief with electric drill or other instrument destruction core, and block rotates with external force, cuts and make it lock, and anti-drilling effect is remarkable, firm practicality.

Below in conjunction with drawings and Examples the utility model is further described.

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

Fig. 2 is an assembled sectional view of the present utility model;

Fig. 3 is another embodiment outside drawing of the present utility model;

Fig. 4 is an another embodiment outside drawing of the present utility model.

At first, see also shown in Figure 1, the utility model is established for 6 groups by cooperation clasps such as lock 1, block 2, maintenance ring sets 3 and is formed, wherein: install core 11 in the lock 1 with lockhole 111, and wear locating hole 112 in the suitable place of core 11, supply to install alignment pin 4 and spring 5, and outwards protrude out the protruding wall 12 of a circular row and form a groove 121 in protruding wall 12 outer ring surfaces in seat rim; Block 2 is once heat treated rigid body, protrudes out convex surface 21 in an end face, and cuts open to establish a slotted eye 211 and establish one in other end face to the center in ora terminalis and have the recessed depression of arc 22; Maintenance ring set 3 wears the through hole 31 of corresponding block 2 convex surfaces 21 in the centre, one end moulding one pit 32, and be arranged with circular groove 321 in pit 32 interior ring edge sides; When Yu Zushe implements, please arranging in pairs or groups, it is shown in Figure 2 to consult, inserting spring 5 and alignment pin 4 in the locating hole 112 of lock 1, block 2 is arranged in the lock 1 protruding wall 12, and lid supports core 111, its depression 22 is fitted and fastened by alignment pin 4, make slotted eye 211 proper for aligning and coinciding with the lockhole 11 of core 11, the continuous groove 121 that is arranged in lock 1 with clasp 6, and establish with maintenance ring set 3 phase retaining caps, its pit 32 covers the protruding wall 12 to lock 1, and clasp 6 also can hold in the circular groove 321 of stretching in maintenance ring set 3 and fasten the location, is consolidated in lock 1.

When if the chance thief destroys core 11 with electric drill or other instrument, its block 2 is the lid that improves hardness once heat treatment, and cover and be butted on 11 of the cores, during drilling, block 2 rotates with external force, causes the alignment pin 4 that is arranged in block 2 depressions 22 to compress spring 5 with block 2 turns and moves down, and block 2 is rotated smoothly, and because the hardness of block 2 self, and make the thief set the axe to; If when normal unlatching, key partly to be extended through turns in block 2 slotted eyes 211, to be caused alignment pin 4 to be subjected to spring 5 ejections and is arranged in location in the depression 22, make slotted eye 211 and lockhole 111 overlap, multiple and the key turn core 11 that stretches through is opened or is locked and pull.

More than each figure be to be example with yi word pattern lockhole 111, on reality is used, shown in Fig. 3,4, lockhole 111 and block 2 slotted eyes 211 can be shaped to the shape of cross or other various corresponding keys, its rights protection all falls into category of the present utility model.

Claims

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.