CN2813798Y

CN2813798Y - Antitheft lock

Info

Publication number: CN2813798Y
Application number: CN200620006829.3U
Authority: CN
Inventors: 谭耀新
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-09
Filing date: 2006-02-28
Publication date: 2006-09-06
Anticipated expiration: 2016-02-28

Abstract

The utility model relates to an antitheft lock with high antitheft performance, which comprises an outer sleeve, an inner core, a lock key and a spring. The utility model is characterized in that the inner core is provided with more than one radial column hole, and the spring and a spring column are arranged in the column hole; a column surface along the spring column is provided with a ring groove with an inclined surface, and a groove which is arranged on the surface of the inner core along an axial direction is communicated with the middle part of the column hole. The inner end of the groove is extended to the front end surface of the inner core, and a slide block which is arranged in the groove is matched with the groove and slides along the axial direction of the inner core. The inner side of the slide block is extended with a spacing column which is matched with the spring column, and both sides of the head part are in an inclined surface shape. The bottom part of the outer sleeve is provided with a clamping hole which is matched with the head part of the inclined surface shape of the slide block.

Description

Anti-theft lock end

Technical field

The utility model relates to a kind of anti-theft lock end.

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 purpose of this utility model is the low problem of theftproof performance that exists in the existing lock core in order to solve, and provides a kind of theftproof performance high anti-theft lock end.

Technical scheme:

Realize that the utility model purpose technical scheme is: a kind of anti-theft lock end, 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 the cannelure on band inclined-plane along 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 limited post with above-mentioned bullet column kit is stretched out in the slide block inboard, the head both sides of slide block become inclined plane shape, 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 is with the position of bullet capital to its cannelure over against the limited post of slide block of inner core, playing the post cylinder separates with limited post on the slide block, firmly rotate key along the direction of unblanking, slip away under the jacket bottom ramp effect hole clipping of jacket bottom of the inclined-plane of slider head is slided to the inner core direction, and inner core can rotate an angle and unblanks with respect to overcoat, at this moment, limited post on the slide block has at least a part to be 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, extract key out, slide block slips into again under playing post and spring action in the hole clipping of jacket bottom inner core is locked in overcoat, makes lockset be in closed condition.

Described anti-theft lock end is characterized in that being provided with axial driving spring between described slide block and inner core.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.

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

Described anti-theft lock end is characterized in that the degree of depth of the sliding stroke of described slide block in the groove of inner core less than the cannelure that plays post.

State anti-theft lock end, it is characterized in that the inclined-plane on described bullet post is " V " shape inclined-plane or curve slope.

Beneficial effect:

Owing to adopted technical scheme described in the utility model, 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 utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the three-dimensional exploded view of an embodiment of anti-theft lock end described in the utility model.

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 relative position figure of limited post on the slide block and corresponding bullet post among Fig. 1 embodiment.

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

Fig. 8 is the view of the another kind of structure of slide block.

Fig. 9 is the stereo amplification figure of the another kind of structure of slide block.

Reference numeral is as follows: 201, bottom outlet, 2, overcoat, 104, groove, 404, head, 4, slide block, 401, reinforcing rib, 402, limited post, 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, 400, the front side of tooth.

The specific embodiment:

See shown in Figure 1, described anti-theft lock end, 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 three 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 is by keyhole 101 (this keyhole is to be surrounded simultaneously by keyhole groove on the inner core 1 and overcoat 2 inwalls), be provided with " V " cannelure 301 that both sides are the inclined-plane 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, the slide block inboard is provided with respectively the limited post 402 supporting with three bullet posts 3, each limited post lays respectively at corresponding bullet post front side, 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; In the keyhole 101 of inner core, also be provided with 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.Be provided with driving spring (in figure do not draw) between the rear side of slide block 4 afterbodys and the groove 104 that puts outward.

Fig. 6 is the relative position figure of limited post on the slide block and corresponding bullet post among Fig. 1 embodiment.State among Fig. 6 is the state when unblanking, limited post is positioned at the cannelure that plays post, after extracting key out, play post and sliding in the post hole under the spring force effect, the bullet post upwards pushes away limited post (being benchmark with Fig. 6) by the inclined-plane of the cannelure on it, and the slide block front portion is stretched in the hole clipping of jacket bottom again, at this moment, play that cannelure on the post separates with limited post and the external surface that plays post is pushed down the limited post rear side, slide block can not be retreated, thereby inner core and overcoat are locked mutually.At this moment, between the groove of slide block and overcoat, can not use driving spring.As can be seen from Fig. 6, in the limited post front side reinforcing rib 401 can be set.

During use, in keyhole 101, insert key and rotation, sign indicating number tooth on the key is with limited post 402 places of bullet capital to its cannelure over against slide block of inner core, the cylinder of bullet post 3 separates with the limited post 402 on the slide block, firmly rotate key along the direction of unblanking, slip away under the ramp effect of the hole clipping 202 of the jacket bottom hole clipping of jacket bottom of the inclined-plane 404 of slider head is slided to the inner core direction, inner core can rotate an angle and unblanks with respect to overcoat, at this moment, be positioned at the cannelure 301 that limited post 402 is positioned at corresponding bullet post on the slide block, 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, limited post 402 on the slide block separates with the cannelure that plays post, playing post can slide in the post hole, can extract key this moment out, the limited post rear side with slide block is blocked in bullet post its cylinder inboard under spring action, slide block can not be slided backward, slide block interfixes overcoat and inner core, makes lockset be in closed condition.

Fig. 8 is the view of the another kind of structure of slide block among Fig. 1 embodiment.As can be seen from Fig. 8, the limited post on the slide block also can replace with tooth, and the front side 400 of tooth is equivalent to the effect of the limited post among Fig. 1.Certainly, slide block also can be as shown in Figure 9, and it adopts five bullet posts to match with five teeth on it, and those skilled in the art all can realize on the utility model basis, be not going to repeat.

Claims

1, a kind of anti-theft lock end, 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 the cannelure on band inclined-plane along 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 limited post with above-mentioned bullet column kit is stretched out in the slide block inboard, the head both sides of slide block become inclined plane shape, and jacket bottom is provided with the hole clipping that the inclined plane shape head with slide block matches.

2,, it is characterized in that between described slide block and inner core, being provided with axial driving spring according to the described anti-theft lock end of claim 1.

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

4,, it is characterized in that the inclined-plane on described bullet post is " V " shape inclined-plane or curve slope according to the described anti-theft lock end of claim 1.