CN2849053Y

CN2849053Y - Antitheft lock core

Info

Publication number: CN2849053Y
Application number: CN 200620002544
Authority: CN
Inventors: 谭耀新
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-02
Filing date: 2006-01-02
Publication date: 2006-12-20
Anticipated expiration: 2016-01-02

Abstract

The utility model relates to an antitheft lock core with antitheft performance, which comprises an outer sheath, an inner core, a lock key and a spring, wherein the outer sheath is sheathed on the inner core. The utility model is characterized in that the inner core is provided with more than one radial spring hole, the spring and a spring column are arranged in the spring hole, and the column surface of the spring column is provided with an annular groove; a groove which is arranged on the surface of the inner core along an axial direction is communicated with the middle part of the spring hole, and the inner end of the groove is extended to the front end surface of the inner core. A slide block which is arranged in the groove and is matched with the groove can slide along the axial direction of the inner core, and the inner side of the slide block is provided with a tooth opening which is matched with the outer diameter of the spring column. An axial drive spring is arranged between the slide block and the inner core. A drive block is arranged between the bottom of the outer sheath and the inner end of the inner core, the head part of the drive block is extended from the bottom of the outer sheath and one side of the drive block facing the inner core is provided with a clamping opening. The outer sheath is provided with a return guide sloping bench which is matched with the drive block.

Description

Anti-theft lock

Technical field

The utility model 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 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.

Technical scheme:

The purpose of this utility model is realized by following two technical schemes:

First technical scheme, a kind of anti-theft lock, comprise overcoat, inner core, key and spring, overcoat entangles inner core, it is characterized in that inner core is provided with more than one shell hole radially, place spring in the shell 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 of above-mentioned shell 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 has the tooth mouth that matches with above-mentioned bullet post external diameter, is provided with axial driving spring between slide block and the inner core, place drive block between jacket bottom and inner core the inner, the head of drive block stretches out through jacket bottom, and drive block is provided with bayonet socket towards inner core one side, puts outward to be provided with return guiding sloping platform and above-mentioned drive 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, and the tooth on the slide block is positioned at the cannelure that plays post, key can not be extracted, and slide block moves to the drive block direction under the driving spring effect, and the dop of slip front stretches in the bayonet socket of drive block, key by inner core, be stuck in slide block between inner core and the drive block and drive drive block and rotate, drive block drives the dead bolt of lockset and unblanks; Make the key backward rotation when locking, when slider head turns to the return guiding sloping platform of jacket bottom, the bayonet socket that slider head is pushed out drive block makes the tooth mouth on the slide block can extract key out over against the shell hole on the inner core, playing post tooth ability to speak of its cylinder and slide block under spring action closes and slide block is blocked, slide block can not be slided, this moment, inner core can rotate with respect to drive block and overcoat, even but when turning to slider head over against the drive block bayonet socket, can not slip in the bayonet socket, can prevent that the lawless person from rotating inner core by force lock core destruction is reached the purpose of unblanking.The sign indicating number tooth that differing heights is set on the key respectively with the bullet post of corresponding each yard tooth on cannelure match, can realize having the corresponding one by one of key and lock core.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 putting outside described and is provided with locating hole, placement force spring and hoodle in the locating hole, the arc blind hole formation detent mechanism on this hoodle and spring and the described drive block.The degree of depth of arc blind hole generally should be less than the radius of hoodle.When drive block when external force is rotated by force, the hoodle that is positioned at the arc blind hole of drive block separates with the arc blind hole and retracts to the locating hole of overcoat, when unblanking afterwards inner core to be turned back to original state and to extract key out with key, arc blind hole on the drive block is again over against the hoodle outside, drive block is positioned, this moment as do not have external force to act on the drive block, then drive block can not rotate with respect to overcoat, and the effect of this location is to be convenient to the user to extract key in position accurately.

Described anti-theft lock, it is characterized in that described anti-theft lock, it is characterized in that being provided with arc location blind hole in the inside bottom of described overcoat, described drive block is provided with and the corresponding through hole of jacket bottom arc blind hole, placing front end in the through hole is the reference column of arc, the front end face of inner core have with drive block on the corresponding hoodle of through hole hole, the hoodle hole is placement force spring and ball from inside to outside.When unblanking, when inner core turns to slide block can slip into the bayonet socket of drive block the time, the through hole tail end of drive block is over against the hoodle hole of inner core, when inner core is moving by slide block drive drive block, reference column front end arc head is pushed up to drive block by the arc of overcoat location blind hole when drive block rotates, the reference column outer end is stretched into and is made inner core and drive block (this moment, slide block made inner core and drive block rotate synchronously) synchronously in the hoodle hole of inner core, do not influence the process of unblanking, and when locking again, inner core is turned back to slide block when just having separated with the bayonet socket of drive block, the arc location blind hole of overcoat, the through hole of drive block, the hoodle hole of inner core is relative, under the effect of the compression spring in the hoodle hole, ball will be located the arc location blind hole that capital outwards overlaps the bottom, reference column tail end and drive block are maintaining an equal level towards the end of inner core, after extracting key out, inner core can dally, and reference column is with drive block and overcoat locking, and when the hoodle hole on the inner core can not be on drive block through hole the time, reference column the inner is stretched in the blind hole of arc location, inner core is withstood in the outer face, so, even can not by force rotate drive block by other method this moment, increased the theftproof performance of anti-theft lock.

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 is characterized in that sliding stroke in the groove of described slide block at inner core is greater than the radius of described bullet post or play the degree of depth of the cannelure of post.Its benefit is to make slide block have sufficiently long length to stretch in the bayonet socket of drive block, gives the power that passes piece through the slide block transmission to guarantee inner core.

Second technical scheme, a kind of anti-theft lock, comprise overcoat, inner core, key and spring, it is characterized in that inner core is provided with more than one shell hole radially, place spring in the shell 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 of above-mentioned shell hole vertically in core surface, place in the groove and match with this groove and can be along inner core slide block in axial sliding, the slide block inboard has the tooth mouth that matches with above-mentioned bullet post external diameter, be provided with axial driving spring between slide block and the inner core, be provided with drive sleeve between overcoat and the inner core, the head of drive sleeve stretches out through jacket bottom, the port of drive sleeve be provided with slide block on the bayonet socket that matches of dop, a this bayonet socket wherein side is the inclined-plane, the slide block outside is provided with the pearl groove, has on the drive sleeve sidewall and blocks the hole clipping that pearl matches, and this card pearl can radially slide along drive sleeve in hole clipping, outer casing inner wall is provided with the lock slots that matches with the sphere that blocks pearl, is provided with position-limit mechanism between overcoat and the drive sleeve.

Described anti-theft lock, it is characterized in that being made of core body and core retainer plate at described inner core, core retainer plate entangles core body, and shell hole and groove on the described inner core are located at core body, have on the wall of core retainer plate with core body on the sizable groove of groove, the groove that the dop of described slide block passes on the core retainer plate stretches out.

Described anti-theft lock is characterized in that sliding stroke in the groove of described slide block at inner core is greater than the radius of described bullet post or play the degree of depth of the cannelure of post.

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 core body, playing the post cylinder separates with tooth mouth on the slide block, (degree of depth of cannelure can be greater than the height of tooth and the tooth on the slide block is positioned at the cannelure that plays post, one tooth position can be slipped in the cannelure of bullet post of back), key can not be extracted, slide block moves to the drive sleeve direction under the driving spring effect, dop on the slide block stretches in the bayonet socket of drive sleeve, pearl groove on the slide block is over against the card base of fixture block simultaneously, be rotated further key, fixture block be pressed against drive sleeve hole clipping and with overcoat in exact separation, make the key can be by core body and core retainer plate, slide block between being stuck in core body and the drive sleeve bayonet socket drives drive sleeve and rotates, and drive sleeve drives the dead bolt of lockset and unblanks; Make the key backward rotation when locking, when drive sleeve turns to position-limit mechanism, under the spring and the effect of ball of fixture block in the pearl groove of slide block, the draw-in groove of outer casing inner wall is stretched in the fixture block outside, the card base of fixture block separates with pearl groove on the slide block, be rotated further key, then under the back slope effect on the drive sleeve bayonet socket, the dop of slide block skids off the drive sleeve bayonet socket, at this moment, tooth mouth on the slide block can be extracted key out over against the shell hole in the core body, plays post tooth ability to speak of its cylinder and slide block under spring action and closes and slide block is blocked, and slide block can not be slided, this moment, core body and core retainer plate can rotate with respect to drive sleeve, even but the dop that turns to slide block can not slip in the bayonet socket during over against the drive sleeve bayonet socket, can prevent that the lawless person from rotating core body by force and lock core is destroyed and reaching the purpose of unblanking.

Beneficial effect:

Owing to adopted technical scheme described in the utility model, unblank as not using correct key, then inner core can rotate with respect to overcoat, having prevented that the lawless person from stretching into instruments such as screwdrivers rotates inner core by force in the keyhole and destroys lockset, and have only all bullet posts are pushed up the tram simultaneously, slide block just can slide, 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 described in the utility model.

Fig. 2 is that overcoat cuts stereo amplification figure after half among Fig. 1.

Fig. 3 is the stereo amplification figure of another angle of drive block among Fig. 1.

Fig. 4 is the be hit by a bullet front enlarged drawing of post of Fig. 1.

Fig. 5 is the principle of relativity figure when slide block cooperates with the bullet post among Fig. 1 embodiment.

Fig. 6 is the location structure enlarged drawing between overcoat and the drive block among Fig. 1 embodiment.

Fig. 7 is the three-dimensional exploded view of another embodiment of anti-theft lock described in the utility model.

Fig. 8 is the stereo amplification figure of drive sleeve among Fig. 7 embodiment.

Fig. 9 is the sectional view of overcoat among Fig. 7.

Figure 10 is the stereogram of core retainer plate among Fig. 7.

Figure 11 is the stereo amplification figure of slide block among Fig. 7.

Figure 12 is an orthographic projection view of slide block shown in Figure 11.

Reference numeral is as follows: 402, side opening, 301, head, 303, bayonet socket, 304, the empty avoiding mouth, 103, shell hole, 203, dop, 204, lateral surface, 2, slide block, 201, opening, 101, groove, 202, tooth mouth, 205, tooth, 1, inner core, 102, keyhole, 100, the anti-muscle of choosing, 501, cannelure, 5, play post, 3, drive block, 302, positioning through hole, 401, stopper slot, 4, overcoat, 404, return guiding sloping platform, 405, arc location blind hole, 61, reference column, 62, ball, 63, compression spring; 934, head, 96, the card pearl, 931, hole clipping, 92, slide block, 901, groove, 921, the pearl groove, 923, dop, 920, opening, 911, groove, 941, pin-and-hole, 942, front aperture, 94, overcoat, 91, core body, 913, keyhole, 912, shell hole, 95, play post, 90, core retainer plate, 933, bayonet socket, 93, drive sleeve, 932, spacing hole, 924, tooth mouth, 9230, the inclined-plane, 940, lock slots.

The specific embodiment:

Embodiment one, see shown in Figure 1, belong to first technical scheme, described anti-theft lock, comprise overcoat 4, inner core 1, unillustrated key and spring, overcoat 4 entangles inner core 1, inner core 1 is provided with five shell holes 103 radially, shell hole 103 bottoms (Fig. 1 direction) are placed spring top and are placed bullet post 5, the cylinder that plays post 5 is provided with cannelure 501, the inner core upper edge is axially arranged with the groove 101 that communicates with the middle part of five shell holes 103, the slide block 2 that has tooth mouth 202 is put into groove 101, and the opening of slide block 201 and groove 101 the right are provided with and make slide block slide to the driving spring (not drawing among the figure) of drive block 3, and the dead bolt that the head 301 of drive block 3 stretches out through overcoat 4 bottoms with lockset links, drive block 3 is provided with bayonet socket 303 and the empty avoiding mouth 304 that communicates with groove 101 on the inner core 1, and empty avoiding mouth 304 matches with return guiding sloping platform 404 (see figure 2)s of jacket bottom; Fig. 2 and Fig. 6, the arc location blind hole 405 that jacket bottom is provided with, put into reference column 61 in the through hole of drive block 3, reference column 61 heads and arc location blind hole 405 match, in the hoodle hole of inner core 1, be placed with ball 62 and compression spring 63, make the arc location blind hole 405 formation drive blocks of reference column 61 and overcoat and the detent mechanism of overcoat, during installation drive block 3 put into overcoat 4 bottoms, to play post 5 and slide block 2 and the corresponding spring inner core 1 of packing into again, wherein the lateral surface 204 of slide block maintains an equal level with the outer cylinder of inner core 1, then inner core 1 is put into overcoat 4, through outside the side opening that puts insert latch and be fixed on inner core 1 surface, seal the external surface of side opening 402 then, make stopper slot 401 that the outer end of above-mentioned latch is positioned at overcoat with prevent inner core 1 from outside put and come off.

Use: after keyhole 102 inserts key left, clockwise rotate, play the tooth mouth 202 of cannelure 501 on the slide block on the post, when the bayonet socket 303 of the dop 203 that turns to slide block on drive block, because the tooth 205 between the tooth mouth 202 can be by playing the cannelure 501 of post at this moment, so slide block slides to the drive block direction under the spring action that is contained between slide block and the inner core 1, dop 203 slips in the bayonet socket 303 inner core and drive block 3 is linked, at this moment, hoodle hole on the inner core, the relative position of the through hole on the drive block as shown in Figure 6, thereby be rotated further in the hoodle hole that key reference column 61 afterbodys are headed into inner core head 301 that inner core simultaneously drives drive block 3 by slide block rotate drive locksets the dead bolt action to unblank, because some stretches into the tooth on the slide block between the tooth mouth 202 in the cannelure 501 that plays post, key can not move because of playing post when outwards taking out key, so can not be extracted out; Make the key backward rotation when locking, the return guiding sloping platform 404 that turns to jacket bottom when slider head 203 outsides that are positioned at bayonet socket 303 (is seen Fig. 2, its return guiding sloping platform is positioned at empty avoiding mouth 304 places of drive block) time, slider head is released the bayonet socket 303 of drive block by force, simultaneously, compression spring 63 heads into the head of reference column 61 405 interior (as shown in Figure 6) of arc location blind hole of overcoat again by ball 62, each tooth salty first month of the lunar year on the slide block is to each shell hole on the inner core, when outwards taking out key, playing post can move up and down and can not block the tooth between the tooth mouth 202 on the slide block, key is drawn out of, playing post tooth ability to speak of its cylinder and slide block under spring action closes and slide block is blocked, slide block can not be slided, this moment, inner core 1 can rotate with respect to drive block 3 and overcoat 4, as shown in Figure 6, rotate inner core 1 this moment makes ball 62 after the right side of drive block 3 rolls across an angle, after reference column 61 on the drive block and the hoodle hole dislocation on the inner core 1, even external force can not make drive block rotate with respect to overcoat, also be that drive block is locked in overcoat.

See Fig. 5, dotted line is represented the degree of depth of cannelure on the slide block among the figure, and as shown in the figure, the peak of tooth 205 can not contact with the bottom of cannelure, when having guaranteed that the bullet post is in lockset position of coupler, the coasting distance of slide block can surmount more than one tooth position has enough length to stretch in the drive block to guarantee slide block.

Embodiment two, see Fig. 7, belong to second technical scheme, described anti-theft lock, comprise overcoat 94, unillustrated key and spring among inner core that constitutes by core body 91 and core retainer plate 90 and the figure, core retainer plate entangles core body, and both fix with pin, core body 91 is provided with five built-in springs and plays the shell hole 912 of post 95, its cylinder that plays post is provided with cannelure equally, slide block 92 is arranged in the groove 911 of core body and the groove 901 of core retainer plate, the outer cylinder of slide block 92 outsides and core retainer plate 90 the inners maintains an equal level and stretches into the inner chamber of drive sleeve 93, the inner cylinder of the inner chamber of the outer cylinder of core retainer plate front end and drive sleeve 93 matches, the bayonet socket 933 that the dop 923 of slide block stretches out on groove 901 and the drive sleeve 93 matches, the slide block inboard has tooth mouth 924 (seeing Figure 12) equally, be provided with axial driving spring (not drawing among the figure) between the opening 920 of slide block and the core retainer plate 90, the head 934 of drive sleeve links with the dead bolt of lockset, and spherical card pearl 96 is positioned at the hole clipping 931 of drive sleeve 93; During installation, after being with the core body that plays parts such as post to be inserted in core retainer plate, reinstall slide block 92, put into drive sleeve then together, put the card pearl again, after overcoat 94 afterbodys are put into overcoat, the pin-and-hole 941 that outwards puts then inserts a pin and blocks the spacing hole 932 of drive sleeve as the position-limit mechanism between overcoat and the drive sleeve.

During use, through outside the front aperture 942 that puts key is inserted in the keyhole 913, its direction of action that plays post and slide block and principle are identical with embodiment's one, clockwise rotate core body 91, when the dop on the slide block 92 923 during over against the bayonet socket 933 of drive sleeve, dop 923 on the axle spring power effect sliding block between opening 920 and core retainer plate 90 slips in the bayonet socket 933 of drive sleeve (slide block inwardly moves), pearl groove 921 on the slide block is over against the hole clipping 931 of drive sleeve simultaneously, firmly rotate key, then the card pearl 96 between the hole clipping 931 of the lock slots 940 of overcoat 94 and drive sleeve is pulled between the pearl groove 921 of hole clipping 931 and slide block, pearl separates with lock slots 940 (see figure 9)s of overcoat card, the outer cylinder of the card outermost point of pearl 96 and drive sleeve 93 remains basically stable or is positioned at hole clipping 931, and key can drive drive sleeve and clockwise rotate and unblank; During locking, oppositely (promptly counterclockwise) rotates key, when drive sleeve hole clipping 931 that the effect of bayonet socket 933 and the dop 923 of slide block forwards drive sleeve 93 next time to facing to outside put lock slots 940 time, if be rotated further core body 91, then slide block 92 is under the interaction on the inclined-plane 9230 of its dop and the inclined-plane of the bayonet socket 933 of drive sleeve, slide block 92 outwards slides, pearl groove 921 on the slide block will block Zhu96Ding to be got back between lock slots 940 (see figure 9)s of the hole clipping 931 of drive sleeve and overcoat, can extract key out, this moment, core retainer plate can rotate with respect to drive sleeve, and can not be rotated mutually by the locking of card pearl between drive sleeve and the overcoat.A plurality of card pearls (the lock slots quantity in hole clipping, the pearl groove on the slide block and the overcoat on the drive sleeve also should be identical with the quantity of card pearl simultaneously) can be set in the present embodiment, and the core retainer plate in the present embodiment is omissible, herein just for technologic requirement.

Claims

1, a kind of anti-theft lock, comprise overcoat, inner core, key and spring, overcoat entangles inner core, it is characterized in that inner core is provided with more than one shell hole radially, place spring in the shell 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 of above-mentioned shell 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 has the tooth mouth that matches with above-mentioned bullet post external diameter, be provided with axial driving spring between slide block and the inner core, place drive block between jacket bottom and inner core the inner, the head of drive block stretches out through jacket bottom, drive block is provided with bayonet socket towards inner core one side, puts outward to be provided with return guiding sloping platform and above-mentioned drive block matches.

2,, it is characterized in that outside described, putting and be provided with locating hole, placement force spring and hoodle in the locating hole, the arc blind hole formation detent mechanism on this hoodle and spring and the described drive block according to the described anti-theft lock of claim 1.

3, according to the described anti-theft lock of claim 1, it is characterized in that described anti-theft lock, it is characterized in that being provided with arc location blind hole in the inside bottom of described overcoat, described drive block is provided with and the corresponding through hole of jacket bottom arc blind hole, placing front end in the through hole is the reference column of arc, the front end face of inner core have with drive block on the corresponding hoodle of through hole hole, the hoodle hole is placement force spring and ball from inside to outside.

4,, 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 of claim 1.

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

6, a kind of anti-theft lock, comprise overcoat, inner core, key and spring, it is characterized in that inner core is provided with more than one shell hole radially, place spring in the shell 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 of above-mentioned shell hole vertically in core surface, place in the groove and match with this groove and can be along inner core slide block in axial sliding, the slide block inboard has the tooth mouth that matches with above-mentioned bullet post external diameter, be provided with axial driving spring between slide block and the inner core, be provided with drive sleeve between overcoat and the inner core, the head of drive sleeve stretches out through jacket bottom, the port of drive sleeve be provided with slide block on the bayonet socket that matches of dop, this a bayonet socket wherein side is the inclined-plane, the slide block outside is provided with the pearl groove, have on the drive sleeve sidewall and block the hole clipping that pearl matches, this card pearl can radially slide along drive sleeve in hole clipping, and outer casing inner wall is provided with the lock slots that matches with the sphere that blocks pearl, is provided with position-limit mechanism between overcoat and the drive sleeve.

7,, 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 of claim 6.

8, according to the described anti-theft lock of claim 6, it is characterized in that constituting by core body and core retainer plate at described inner core, core retainer plate entangles core body, shell hole and groove on the described inner core are located at core body, have on the wall of core retainer plate with core body on the sizable groove of groove, the groove that the dop of described slide block passes on the core retainer plate stretches out.

9,, it is characterized in that sliding stroke in the groove of described slide block at inner core is greater than the radius of described bullet post or play the degree of depth of the cannelure of post according to the described anti-theft lock of claim 6.