CN1978850B

CN1978850B - Anti-theft lock insertion

Info

Publication number: CN1978850B
Application number: CN2006100056182A
Authority: CN
Inventors: 谭耀新
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-05
Filing date: 2006-01-02
Publication date: 2010-10-13
Anticipated expiration: 2026-01-02
Also published as: CN1978850A

Abstract

The invention relates to theft protection lock core. It includes coating, inner core, key, and spring. The inner core is hitched by the coating. Its features are that the inner core is set more than one radial pillar holes in which spring and spring pillar are set; its surface is set flute linked with the pillar hole in which slide block is set; the axial driving spring is set between the slide block and inner core; the bottom of coating is set blocking hole.

Description

A kind of anti-theft lock

Technical field

The present invention relates to a kind of anti-theft lock.

Background technology

Existing lock core is mainly by overcoat, inner core, key, hoodle group and spring, overcoat entangles inner core, the hoodle group is arranged between overcoat and the inner core, after inserting key, the tooth on the key maintains an equal level every group of decorative pearl on top of an official cap outer face and inner core outer cylinder in the hoodle group, and inner core can and be unblanked with respect to the overcoat rotation, after extracting key out, flat pearl is stuck in the front portion that the decorative pearl on top of an official cap heads into inner core and flat pearl between overcoat and the inner core, and inner core can not be relative to rotating with overcoat, thereby can not unblank; The shortcoming of this lock core is that theftproof performance is low, lock is opened with the mode of choosing pearl by the lawless person easily.

Summary of the invention

The objective of the invention is to have the low problem of theftproof performance that exists in the lock core now, and provide a kind of theftproof performance high anti-theft lock in order to solve.

Technical scheme:

Realize that the object of the invention technical scheme is: a kind of anti-theft lock, comprise overcoat, inner core, key and spring, overcoat entangles inner core, the driving head of inner core stretches out through jacket bottom, it is characterized in that inner core is provided with more than one post hole radially, place spring in the post hole and play post, be provided with cannelure at the cylinder that plays post, be provided with the groove that communicates with the middle part in above-mentioned post hole vertically in core surface, the inner of groove extends to the front end face of inner core, place in the groove and match with this groove and can be along inner core slide block in axial sliding, the slide block inboard have with above-mentioned bullet post cylinder on the corresponding external diameter of part matches beyond the cannelure tooth mouth, head one end of slide block and contacted two surfaces of groove are inclined plane shape, be provided with axial driving spring between slide block and the inner core, one end of driving spring withstands the step in the groove, and the other end withstands the inboard of slider head, and jacket bottom is provided with the hole clipping that the inclined plane shape head with slide block matches.Insert key and rotation, sign indicating number tooth on the key arrives its cannelure over against the slide block place with the bullet capital of inner core, playing the post cylinder separates with tooth mouth on the slide block, firmly rotate key along the direction of unblanking, the inclined-plane of slider head overcomes the active force of spring under the jacket bottom ramp effect, and the hole clipping of the jacket bottom that slips away is slided to the inner core direction, inner core can rotate an angle and unblanks with respect to overcoat, at this moment, the tooth on the slide block is positioned at the cannelure that plays post, and key can not be extracted; Make the key backward rotation when locking, when slider head turns to over against the hole clipping of jacket bottom, slide block its head under the spring force effect falls in the hole clipping of jacket bottom again, tooth mouth on the slide block turns back to over against the position in post hole, can extract key this moment out, plays post tooth ability to speak of its cylinder and slide block under spring action and close and slide block is blocked, and slide block can not be slided, slide block interfixes overcoat and inner core, makes lockset be in closed condition.In the process of open and close lock, when slide block fell into the hole clipping of jacket bottom, a framing signal when also can be used as the subscriber switch lock was felt the user and can be extracted key out when key turns to this position.The lock core of this structure, its slide block can not swung in the groove of inner core, the theftproof performance height.

Described anti-theft lock is characterized in that being provided with the anti-muscle of choosing in the keyhole of described inner core.

Described anti-theft lock, it is characterized in that the sliding stroke in the groove of described slide block at inner core greater than described bullet post cylinder on part radius corresponding or play the degree of depth of the cannelure of post beyond the cannelure.Its benefit is to make the hole clipping of jacket bottom enough dark, and it is sealed firm between back inner core and the overcoat to lock.

Beneficial effect:

Owing to adopted technical solutions according to the invention, when unblanking, must shift each bullet post onto lockset position of coupler simultaneously could open lock core, so, when if the lawless person chooses lock with draw point or the like instrument, can not reach the purpose of unblanking with provoking the method that plays post one by one, and have only all bullet posts are pushed up the tram simultaneously, slide block just can slide and unblank, and has improved the theftproof performance of lock core.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples.

Fig. 1 is the three-dimensional exploded view of an embodiment of anti-theft lock of the present invention.

Fig. 2 is the three-dimensional view of another angle of Fig. 1.

Fig. 3 is the orthographic projection view of one of them direction of overcoat among Fig. 1.

Fig. 4 be Fig. 3 along A---the cross section view of A line.

Fig. 5 is the be hit by a bullet orthographic projection view of one of them direction of post of Fig. 1 embodiment.

Fig. 6 is the interaction principle figure that slide block and one of them play post among Fig. 1 embodiment.

Fig. 7 is the right view of slide block among Fig. 6.

Reference numeral is as follows: 201, bottom outlet, 2, overcoat, 104, groove, 105, step, 404, head, 403, breach, 4, slide block, 401, tooth mouth, 402, tooth, 103, the post hole, 101, keyhole, 102, the anti-muscle of choosing, 3, play post, 301, cannelure, 1, inner core, 100, driving head, 203, bar hole, 106, pin-and-hole, 202, hole clipping.

The specific embodiment:

See shown in Figure 1, described anti-theft lock, comprise overcoat 2, inner core 1, unillustrated key and spring among the figure, wherein overcoat 2 entangles inner core 1, the driving head 100 of inner core links through the dead bolt that the bottom outlet 201 of jacket bottom stretches out with lockset, on inner core, be provided with five post holes 103 radially, be furnished with spring in each post hole respectively and play post 3, the circular arc head that plays post 3 leans on keyhole 101, and (strictness is said, this keyhole is to be surrounded simultaneously by keyhole groove on the inner core 1 and overcoat 2 inwalls), be provided with cannelure 301 at the cylinder that plays post, be provided with the groove 104 that communicates with post hole 103 vertically in core surface, the inner of groove 104 extends to the front end face of inner core 1, and be provided with the end that step 105 is used to withstand driving spring in the groove, driving spring is positioned at the breach 403 of slide block 4 and the inboard that the other end withstands head 404, the slide block inboard has and plays the tooth mouth 401 that post 3 external diameters match, head 404 both sides of slide block become the inclined plane shape (see figure 7), and jacket bottom is provided with the hole clipping 202 (seeing Fig. 3 and Fig. 4) that the inclined plane shape head with slide block matches; Want also to be provided with in the keyhole 101 of inner core the anti-muscle 102 of choosing; Localization method between inner core and the overcoat is seen Fig. 2, after bullet post, spring and slide block etc. are fit into inner core, again inner core is inserted in the overcoat, and through outside the bar hole 203 that the puts pin-and-hole 106 on inner core insert spacer pins, make between inner core and the overcoat and can not move axially relatively, and another effect of bar hole 203 is to limit the rotational angle of inner core with respect to overcoat.

During use, in keyhole 101, insert key and rotation, sign indicating number tooth on the key is with tooth mouth 401 places of bullet capital to its cannelure over against slide block of inner core, the cylinder of bullet post 3 separates with the tooth mouth 401 on the slide block, firmly rotate key along the direction of unblanking, the inclined-plane 404 of slider head overcomes the active force of driving spring under the ramp effect of the hole clipping 202 of jacket bottom, and the hole clipping of the jacket bottom that slips away is slided to the inner core direction, inner core can rotate an angle and unblanks with respect to overcoat, at this moment, tooth 402 on the slide block between tooth mouth 401 is positioned at the cannelure 301 that plays post, and key can not be extracted; Make the key backward rotation when locking, when slider head 404 turns to over against the hole clipping 202 of jacket bottom, slide block its head under the effect of driving spring power falls in the hole clipping 202 of jacket bottom again, tooth mouth 401 on the slide block turns back to over against the position in post hole, can extract key this moment out, plays post tooth ability to speak of its cylinder and slide block under spring action and close and slide block is blocked, and slide block can not be slided, slide block interfixes overcoat and inner core, makes lockset be in closed condition.

Claims

1. anti-theft lock, comprise overcoat, inner core, key and spring, it is characterized in that inner core is provided with more than one post hole radially, place spring in the post hole and play post, be provided with cannelure at the cylinder that plays post, be provided with the groove that communicates with the middle part in above-mentioned post hole vertically in core surface, the inner of groove extends to the front end face of inner core, place in the groove and match with this groove and can be along inner core slide block in axial sliding, the slide block inboard have with above-mentioned bullet post cylinder on the corresponding external diameter of part matches beyond the cannelure tooth mouth, head one end of slide block and contacted two surfaces of groove are inclined plane shape, be provided with axial driving spring between slide block and the inner core, one end of driving spring withstands the step in the groove, and the other end withstands the inboard of slider head, and jacket bottom is provided with the hole clipping that the inclined plane shape head with slide block matches.

2. according to the described anti-theft lock of claim 1, it is characterized in that in the keyhole of described inner core, being provided with the anti-muscle of choosing.

3. according to the described anti-theft lock of claim 1, it is characterized in that the sliding stroke in the groove of described slide block at inner core greater than described bullet post cylinder on part radius corresponding or play the degree of depth of the cannelure of post beyond the cannelure.