CN2804293Y

CN2804293Y - Coaxial multi-barrel antitheft lock

Info

Publication number: CN2804293Y
Application number: CN 200520113235
Authority: CN
Inventors: 汤学年
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-14
Filing date: 2005-07-14
Publication date: 2006-08-09
Anticipated expiration: 2015-07-14

Abstract

The utility model relates to a coaxial multi-core antitheft lock which comprises a lock blank [1] and a lock core, wherein the lock core is fixed in the lock blank [1] in a rotating model; the lock core is divided into a plurality of separate segments, and self-locking mechanisms are arranged on one or more than one segments of the lock core. As the segments of the lock core are separate, when torque is applied on the lock core through technical unlocking actions, the torque can not be transferred inward; consequently, the lock effectively keeps away the technical unlocking actions. The lock is additionally provided with the self-locking mechanisms, when the lock core rotates, a bevel mechanism on the lock core pushes a self-locking pin [5] into a circumferential groove [4] to implement the self-locking function. The utility model has the advantages of simple structure and high security, and can effectively prevent various technical unlocking actions.

Description

Coaxial multicore theftproof lock

Technical field

The utility model relates to a kind of theftproof lock, especially a kind of multicore theftproof lock.

Technical background

The marble mechanical lock tool of traditional structure is used very extensive, and it cooperates with pellet shot from a slingshot in the lock core by key, and lock core is rotated, and is finished and is unblanked and lock by the trip of stirring that is connected with lock core again, so use the convenience of ten minutes.But there is very big shortcoming in this lockset: as long as apply moment of torsion to lock core, utilize special instrument that the pellet shot from a slingshot of lock core is compressed one by one again, the cooperation experience just can realize skilled unlocking, so safety is not high.For solving the not high shortcoming of common lockset safety, people have designed various types of pellet shot from a slingshot mechanical anti-theft locks, as publication number is the disclosed L shaped keyhole pellet shot from a slingshot machinery lock of Chinese patent literature of CN1080351A, it is to utilize lockhole inner space little cooperation tip pellet shot from a slingshot not stay move place for the lock core inner chamber, make master key or special instrument be difficult to enter lock core or enter lock core and can't work, thereby reach antitheft purpose.The shortcoming of this class lockset is that structure is comparatively complicated, still is difficult to the purpose that fundamentally reaches antitheft for the special instrument of precision simultaneously.

Summary of the invention

The purpose of this utility model is to provide a kind of coaxial multicore theftproof lock of simple in structure, safe and applicable, it effectively precautionary technology unblank, the safety of mechanical cylinder lock is improved greatly.

A kind of coaxial multicore theftproof lock that provides by the utility model, it comprises lock embryo and lock core, lock core is divided into disjunct plurality of sections and rotational fixation in the lock embryo, the lock embryo is provided with alignment pin to the lock core axial restraint, have some radial holes that communicate on lock core and the lock embryo, the pellet shot from a slingshot and the spring that cooperate unlatching with key are housed in the hole.Because when skilled unlocking, must apply certain moment of torsion to lock core and be convenient to pellet shot from a slingshot in the pin, because this lock core is divided into disjunct plurality of sections, therefore moment of torsion can not be to the lock core transmission of the inside, make lock pellet shot from a slingshot can't be fixed, thereby reach the purpose that prevents skilled unlocking effectively.

For making the utility model more effectively stop skilled unlocking, on one or more lock cores, be provided with self-locking mechanism.One or more lock cores are just arranged by locked when lock core rotates, when applying a moment of torsion to lock core, whole lock core can't rotate synchronously, also can't transmitting torque, and lock also just can't have been opened.

Above-mentioned self-locking mechanism can adopt following scheme: it comprises push rod, self-lock pin and back-moving spring, on the lock core end face adjacent, have axial hole with back one section lock core, push rod is fixed in the axial hole by back-moving spring, the end face of adjacent lock core is provided with the arc groove that cooperates with push rod, to the transition and form the inclined-plane with push rod and cooperate gradually of both sides end face, back-moving spring withstands on push rod in the arc groove arc groove by the centre; Have the radial hole that communicates with axial hole on the lock core, self-lock pin is located in the radial hole, connect by oblique mechanism between its lower end and the push rod, back-moving spring is pressed in self-lock pin on the push rod, is provided with for the circumferential recess of self-lock pin realization to the lock core self-locking with the self-lock pin corresponding section on the lock embryo.When skilled unlocking, apply a moment of torsion for the leading portion lock core, push rod rotates in the arc groove of back segment lock core end face, because the effect of arc groove inclined-plane transmission mechanism, arc groove is compressed its back-moving spring by push rod, push rod moves in the Kong Xiangkong vertically, push rod by and self-lock pin between oblique mechanism promote self-lock pin and radially move and enter in the circumferential recess on the lock embryo in the hole, make this section lock core link to each other with the lock embryo.Owing between lock core and the lock embryo self-lock pin is arranged, can't relatively rotate, thereby realize lock core and the self-locking of locking embryo.

In order to make designs simplification, be located at the self-locking mechanism on the latter end lock core adjacent with end cap, form by push rod and back-moving spring, the latter end lock core is provided with axially extending bore, the push rod and the bullet that resets are contained in the through hole, adjacent leading portion lock core end face is provided with the arc groove that cooperates with push rod, and to the transition and form the inclined-plane with push rod and cooperate gradually of both sides end face, back-moving spring withstands on push rod in the arc groove arc groove by the centre; End cap is provided with and cooperates the arc-shaped through-hole of realizing the lock core self-locking with push rod.When skilled unlocking also rotates one section lock core of latter end lock core or front, the arc groove of its end face will promote push rod and clamp-on in the end cap arc-shaped through-hole, and the latter end lock core is fixed, thereby reach the purpose of self-locking.

For further improving safety, this theftproof lock also comprises a warning device, the push rod interlock of the trigger switch of this warning device and latter end lock core self-locking mechanism.When the push rod of self-locking device on the latter end lock core moves into groove, when realizing self-locking, also started warning device, further improved the safety of this lockset.

In sum, because the utility model passes through the segmentation of mechanical billiard lock core, the moment of torsion that is applied on the leading portion lock core can not only make its safety improve greatly to the transmission of back segment lock core, and simple in structure; Owing on lock core, a plurality of self-locking mechanisms can also be set, so safety is higher.Simultaneously, the utility model can also be realized the warning function that common theftproof lock is such easily.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is that the C-C of Fig. 1 is to sectional view;

Fig. 3 is that the A-A of Fig. 1 is to sectional view;

Fig. 4 is that the B-B of Fig. 1 is to sectional view;

Fig. 5 is that the M-M of Fig. 1 is to sectional view;

Fig. 6 be Fig. 4 and Fig. 5 launch enlarged drawing along the D-D cambered surface;

Fig. 7 is that E of the present utility model is to view.

Among the figure, (1) lock embryo, (2) centring ring, (31) back-moving spring, (32) back-moving spring, (4) circumferential recess, (5) self-lock pin, (61) screw thread, (62) screw thread, (71) push rod, (72) push rod, (8) latter end lock core, (9) end cap, (10) arc-shaped through-hole, (11) pellet shot from a slingshot, (12) stage casing lock core, (13) leading portion lock core, (14) arc groove, (15) arc groove.

Elaborate below in conjunction with specific embodiment.

The specific embodiment

The utility model as shown in Figure 1, it comprises lock embryo 1 and lock core, this lock core be divided into disjunct three sections promptly: leading portion lock core 13, stage casing lock core 12 and latter end lock core 8, coaxial being fixed in the lock embryo 1 is provided with 2 pairs of lock core axial location of centring ring on lock embryo 1.Correspondence position at lock embryo 1 and lock core has some through holes, is fixed with key in the through hole and cooperates pellet shot from a slingshot 11 and the spring of opening.Be respectively equipped with self-locking mechanism on leading portion lock core 13 and the latter end lock core 8, below respectively to its description.

The self-locking mechanism of leading portion lock core 13 is: have radial hole and axial hole on leading portion lock core 13, two holes are connected.Push rod 71 is positioned at axial hole with back-moving spring 31, dark two ends are to the end face arc groove 15 of transition gradually in the middle of being provided with on the front end face of stage casing lock core 12, the front end of push rod 71 is the circular arc spherical surface that cooperates with arc groove 15, back-moving spring 31 withstands on push rod 71 in the arc groove 15, and push rod 71 constitutes the inclined-plane transmission mechanism with arc groove 15.Push rod 71 has the circular arc camber that inwardly concaves at the radial hole place, there is the sphere that cooperates with described circular arc camber the lower end of self-lock pin 5, the sphere top of self-lock pin 5 is provided with step, back-moving spring 32 is enclosed within on the self-lock pin 5, the sphere step of one end by self-lock pin 5 is squeezed in the sphere of self-lock pin 5 on the circular arc camber of push rod 71, make the sphere of self-lock pin 5 and the circular arc camber of push rod 71 constitute the inclined-plane transmission mechanism, the other end of back-moving spring 32 is fixed in the radial hole of lock core by screw thread 61.On lock embryo 1, offer circumferential recess 4 with self-lock pin 5 corresponding positions.The center arc length of the arc groove 15 on the center arc length of circumferential recess 4 and the middle lock core end face equates.

The self-locking mechanism structure of latter end lock core is: have axially extending bore on the latter end lock core 8, push rod 72 is located in this radial direction through hole, have arc groove 14 on stage casing lock core 12 rear end faces, dark two ends were to end face transition gradually in the middle of arc groove 14 was, push rod 72 1 ends have the sphere that cooperates with arc groove 14, and the spheric end of push rod 72 cooperates formation inclined-plane transmission mechanism with arc groove 14.Be provided with step on push rod 72, back-moving spring one end withstands on push rod 72 in the arc groove 14 by the step of push rod 72, and the other end is fixed in the axially extending bore of latter end lock core 8 by screw thread 62.On end cap 9, offer arc-shaped through-hole 10 with push rod 72 correspondence positions.The center arc length of arc-shaped through-hole 10 equates with the center arc length of the arc groove 14 of the rear end face of stage casing lock core 12.Self-locking mechanism on the latter end lock core 8 has utilized end cap 9, and structure is simplified more.Be provided with autoalarm on lock core, the trigger switch of warning device (not drawing among the figure) links with the push rod 72 of the self-locking mechanism of latter end lock core 8.

The utility model is like this work: when skilled unlocking, apply moment of torsion for front end lock core 13, because leading portion lock core 13 do not link to each other with stage casing lock core 12, moment of torsion can't be to the lock core transmission of the inside, so the two sections lock cores in back do not have moment of torsion.When skilled unlocking, can't compress simultaneously like this, also just can't realize unblanking pellet shot from a slingshot, when leading portion lock core 13 is made fine rotation simultaneously, two oblique mechanisms promote self-lock pin 5 and enter in the circumferential recess 4 of locking embryo 1, leading portion lock core 13 is linked to each other with lock embryo 1, thereby also can't rotate.When the skilled unlocking person utilizes instrument in lockhole stage casing lock core 12 to be executed moment of torsion, leading portion lock core 13 is still realized self-locking under the effect of self-locking mechanism, latter end lock core 8 is owing to the arc-shaped through-hole 10 that has oblique mechanism promotion push rod 72 to enter on the end cap 9 is realized self-locking.When the skilled unlocking person utilized instrument directly the pellet shot from a slingshot on the latter end lock core 8 11 to be compressed in lockhole and rotates, oblique mechanism promoted push rod 72 and moves, and push rod 72 self also rotates with latter end lock core 8, and arc-shaped through-hole 10 can provide and make a concession space and self-locking like this.Touch the switch of warning device when the push rod 72 of latter end lock core 8 moves simultaneously and realize warning, can further improve its safety.

Claims

1, a kind of coaxial multicore theftproof lock, it comprises lock embryo [1] and lock core, the lock core rotational fixation is in lock embryo [1], the lock embryo is provided with centring ring [2] to the lock core axial restraint, have some radial holes that communicate on lock core and the lock embryo [1], the pellet shot from a slingshot [11] and the spring that cooperate unlatching with key are housed in the hole, it is characterized in that described lock core is divided into disjunct plurality of sections.

2, theftproof lock according to claim 1 is characterized in that being provided with self-locking mechanism on one or more snippets lock core.

3, theftproof lock according to claim 2, it is characterized in that described self-locking mechanism comprises push rod [71], self-lock pin [5] and back-moving spring [31,32], on the lock core end face adjacent, have axial hole with back one section lock core, push rod [71] is fixed in the axial hole by back-moving spring [31], the end face of adjacent lock core is provided with the arc groove [15] that cooperates with push rod [71], to the transition and form the inclined-plane with push rod [71] and cooperate gradually of both sides end face, back-moving spring [31] withstands on push rod [71] in the arc groove [15] arc groove [15] by the centre; Have the radial hole that communicates with axial hole on the lock core, self-lock pin [5] is located in the radial hole, its lower end and push rod connect by oblique mechanism between [71], back-moving spring [32] is pressed in self-lock pin [5] on the push rod [71], goes up with self-lock pin [5] corresponding section at lock embryo [1] to be provided with for the circumferential recess [4] of self-lock pin [5] realization to the lock core self-locking.

4, according to claim 2 or 3 described theftproof locks, it is characterized in that the latter end lock core adjacent with end cap [9] is provided with self-locking mechanism, form by push rod [72] and back-moving spring [33], this section lock core is provided with axially extending bore, push rod [72] and the bullet that resets dress [33] are in through hole, adjacent leading portion lock core end face is provided with the arc groove [14] that cooperates with push rod [72], to the transition and form the inclined-plane with push rod [72] and cooperate gradually of both sides end face, back-moving spring [33] withstands on push rod [72] in the arc groove [14] arc groove [14] by the centre; End cap [9] is provided with and cooperates the arc-shaped through-hole of realizing the lock core self-locking [10] with push rod [72].

5, theftproof lock according to claim 4 is characterized in that also comprising a warning device, push rod [72] interlock of the trigger switch of this warning device and latter end lock core self-locking mechanism.