CN201169981Y - Lock - Google Patents

Abstract

The utility model discloses a lock. A lock core of the lock consists of a lock core front section and a lock core rear section, the lock core front section is provided with a plurality of radial circular elastic sheet slots in turn along the axial direction, the circular elastic sheet slots are provided with two sets of combined elastic sheets which are formed by reset elastic sheets and key tooth elastic sheets, and can rotate relatively, the inner side of the key tooth elastic sheet is provided with tooth lug boss matched with key teeth, the outside of the key tooth elastic sheet is provided with a beveled groove corresponding to the tooth lug boss in a misplacement mode, the outside of the lock core front section is provided with a guide groove passing through each circular elastic sheet, the inner side of the lock body is provided with a locking groove corresponding to the guide groove, the lock core rear section is provided with a linkage groove arranged radially, the space consisting of the guide groove, the locking groove and the linkage groove is provided with an L-shaped deflected rod which can move radialy, the bottom of the locking groove is provided with a reset device thrusting the L-shaped deflected rod in radially moving, and the reset device has excellent performances of preventing toggling and prying.

Description

A kind of tapered end

Technical field

The utility model relates to a kind of lock uint, particularly a kind of tapered end.

Background technology

The tradition mechanical lock head mainly adopts the whole lock core structure of pellet shot from a slingshot or shell fragment, and its structure generally comprises lock body, whole lock core, pellet shot from a slingshot or shell fragment, thus only when pellet shot from a slingshot or shell fragment are in ad-hoc location simultaneously lock core could in lock body, rotate the unlatching tapered end.When pellet shot from a slingshot or shell fragment were not in specific enable possition, pellet shot from a slingshot or shell fragment one end blocked lock body, and the other end blocks lock core, make lock core not rotate in lock body and tapered end can not be opened.Yet this class tapered end cannot not exist anti-ly the shortcoming of dialling, in case the burglar utilizes instrument to stir pellet shot from a slingshot or shell fragment makes its appearance dislocation that tapered end is opened easily; On the other hand, the also pick-proof not of this class tapered end, because being used to insert the lock core hole of key on the tapered end all is polygon, when the burglar uses to insert in the lock core hole with the similar instrument of key shape it is reversed, dislocation will take place and lock core is rotated in the pellet shot from a slingshot of tapered end or shell fragment, and perhaps the screw of tapered end is twisted off, and perhaps the integral body of tapered end is twisted together, above-mentioned any phenomenon no matter occurs, tapered end all has the danger of being opened by the burglar.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of tapered end, and it is anti-stirs function admirable with tamper evident.

In order to solve the problems of the technologies described above, a kind of tapered end of the present utility model, comprise lock body, the lock core that can rotate relative to lock body is installed in the lock body, lock core is provided with the keyhole that inserts for key, described lock core is made up of lock core leading portion and lock core back segment, described keyhole is arranged on the lock core leading portion, it axially is disposed with a plurality of radially circular shell fragment grooves lock core leading portion upper edge, this circle shell fragment groove communicates with keyhole, in the circular shell fragment groove two groups of relatively turnable combination shell fragments that are made of reseting shrapnel and tartar shell fragment are housed, axially be provided with the alignment pin that is used for two combination shell fragment stop in the lock core leading portion, the inboard of described reseting shrapnel is provided with boss, between the boss of two reseting shrapnels, be connected with back-moving spring, the inboard of described tartar shell fragment is provided with the tartar boss that matches with key tooth flower, the outside dislocation of tartar shell fragment is provided with the hypotenuse groove, the arranged outside of described lock core leading portion has the guide groove that connects each circular shell fragment groove, the inboard of described lock body is provided with the locked groove corresponding with this guide groove, described lock core back segment has the linked slot that radially is provided with, described guide groove, be placed with the L shaped driving lever that can move radially in the space that locked groove and linked slot are formed, the thickness of this L shaped driving lever and guide groove, the degree of depth unanimity of locked groove, the bottom of described locked groove are provided with and promote the resetting means that L shaped driving lever moves radially.

As improvement of the technical scheme, described resetting means is to be provided with counterbore in the bottom of locked groove, is placed with spring and the pellet shot from a slingshot that contacts with L shaped driving lever in the counterbore successively.

The beneficial effects of the utility model are: owing to adopted said structure, after inserting key the hypotenuse groove of tartar shell fragment is alignd with L shaped driving lever, L shaped driving lever could fall in hypotenuse groove, guide groove and the linked slot simultaneously, makes the lock core leading portion drive the rotation of lock core back segment by key and unblanks; When the tartar and the tartar boss on the tartar shell fragment of key can not be all at once, the lock core back segment can not rotate with lock body is fixing by L shaped driving lever, the lock core leading portion is in idling conditions, the rotational lock core leading portion all can not make the lock core back segment rotate in any case, and can prevent effectively changes the powerful sled of tapered end; In addition, because the hypotenuse groove shifts to install on the tartar shell fragment, be difficult to utilize insert that unlocking tool is stirred the combination shell fragment and the hypotenuse groove of all tartar shell fragments is focused on consistent, prevent from that the burglar from adopting to stir the mode of unblanking and carry out criminal activity with the direction of the guide groove of lock core leading portion.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is a locked state structural representation of the present utility model;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the B-B sectional view of Fig. 1;

Fig. 4 is an opening structural representation of the present utility model;

Fig. 5 is the C-C sectional view of Fig. 4;

Fig. 6 is the D-D sectional view of Fig. 4.

The specific embodiment

Referring to figs. 1 through Fig. 3, a kind of tapered end of the present utility model, comprise lock body 1, the lock core that can rotate relative to lock body 1 is installed in the lock body 1, lock core is provided with the keyhole 2 that inserts for key, lock core is made up of lock core leading portion 3 and lock core back segment 4, keyhole 2 is arranged on the lock core leading portion 3, it axially is disposed with a plurality of radially circular shell fragment grooves 31 lock core leading portion 3 upper edges, this circle shell fragment groove 31 communicates with keyhole 2, in the circular shell fragment groove 31 two groups of relatively turnable combination shell fragments that are made of reseting shrapnel 5 and tartar shell fragment 6 are housed, axially be provided with the alignment pin 9 that is used for two combination shell fragment stop in the lock core leading portion 3, the inboard of reseting shrapnel 5 is provided with boss 51, between the boss 51 of two reseting shrapnels, be connected with back-moving spring 7, the inboard of tartar shell fragment 6 is provided with the tartar boss 61 that matches with key tooth flower, the outside dislocation of tartar shell fragment 6 is provided with hypotenuse groove 62, the arranged outside of lock core leading portion 3 has the guide groove 32 that connects each circular shell fragment groove 31, the inboard of lock body 1 is provided with the locked groove 11 corresponding with this guide groove 32, lock core back segment 4 has the linked slot 41 that radially is provided with, described guide groove 32, be placed with the L shaped driving lever 8 that can move radially in the space that locked groove 11 and linked slot 41 are formed, the thickness of this L shaped driving lever 8 and guide groove 32, the degree of depth unanimity of locked groove 11, the bottom of described locked groove 11 are provided with and promote the resetting means that L shaped driving lever 8 moves radially.With reference to Fig. 4 to Fig. 6, in use, after inserting suitable key toward keyhole 2, key tooth flower matches with tartar boss 61 on the tartar shell fragment 6, promote respectively to make up the corresponding rotation of shell fragment, the hypotenuse groove 62 of tartar shell fragment 6 is alignd with L shaped driving lever 8, and L shaped driving lever 8 could fall in hypotenuse groove 62, guide groove 32 and the linked slot 41 simultaneously, and key makes lock core leading portion 3 drive 4 rotations of lock core back segment by L shaped driving lever 8 and unblanks.When the tartar and the tartar boss 61 on the tartar shell fragment 6 of key can not be all at once, L shaped driving lever 8 is in the locked groove 11, lock core back segment 4 is fixed and can not be rotated with lock body 1 by L shaped driving lever 8, lock core leading portion 3 is in idling conditions, rotational lock core leading portion 3 all can not make lock core back segment 4 rotate in any case, and can prevent effectively changes the powerful sled of tapered end; In addition, because hypotenuse groove 62 shifts to install on the tartar shell fragment, be difficult to utilize insert that unlocking tool is stirred the combination shell fragment and the hypotenuse groove 62 of all tartar shell fragments is focused on consistent, prevent from that the burglar from adopting to stir the mode of unblanking and carry out criminal activity with the direction of the guide groove 32 of lock core leading portion.

In the present embodiment, above-mentioned resetting means is to be provided with counterbore 111 in the bottom of locked groove 11, is placed with spring 112 and the pellet shot from a slingshot 113 that contacts with L shaped driving lever 8 in the counterbore 111 successively, and is simple in structure.Certainly the resetting means of the utility model use is not limited to above-mentioned form of structure, as long as it reaches technique effect of the present utility model with essentially identical means, all should belong to protection domain of the present utility model.

Claims (2)

1. tapered end, comprise lock body (1), the lock core that can rotate relative to lock body (1) is installed in the lock body (1), lock core is provided with the keyhole (2) that inserts for key, it is characterized in that described lock core is made up of lock core leading portion (3) and lock core back segment (4), described keyhole (2) is arranged on the lock core leading portion (3), it axially is disposed with a plurality of radially circular shell fragment grooves (31) lock core leading portion (3) upper edge, this circle shell fragment groove (31) communicates with keyhole (2), two groups of relatively turnable combination shell fragments that are made of reseting shrapnel (5) and tartar shell fragment (6) are housed in the circular shell fragment groove (31), axially be provided with the alignment pin (9) that is used for two combination shell fragment stop in the lock core leading portion (3), the inboard of described reseting shrapnel (5) is provided with boss (51), between the boss (51) of two reseting shrapnels, be connected with back-moving spring (7), the inboard of described tartar shell fragment (6) is provided with the tartar boss (61) that matches with key tooth flower, the outside dislocation of tartar shell fragment (6) is provided with hypotenuse groove (62), the arranged outside of described lock core leading portion (3) has the guide groove (32) that connects each circular shell fragment groove (31), the inboard of described lock body (1) is provided with the locked groove (11) corresponding with this guide groove (32), described lock core back segment (4) has the linked slot (41) that radially is provided with, described guide groove (32), be placed with the L shaped driving lever (8) that can move radially in the space that locked groove (11) and linked slot (41) are formed, the thickness of this L shaped driving lever (8) and guide groove (32), the degree of depth unanimity of locked groove (11), the bottom of described locked groove (11) are provided with and promote the resetting means that L shaped driving lever (8) moves radially.

2. tapered end according to claim 1 is characterized in that described resetting means is to be provided with counterbore (111) in the bottom of locked groove (11), is placed with spring (112) and the pellet shot from a slingshot (113) that contacts with L shaped driving lever (8) in the counterbore (111) successively.

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