CN202544536U

CN202544536U - Lock core mechanism with idling function

Info

Publication number: CN202544536U
Application number: CN201220027968XU
Authority: CN
Inventors: 徐钜祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-21
Filing date: 2012-01-21
Publication date: 2012-11-21
Anticipated expiration: 2022-01-21

Abstract

The utility model relates to a lock core mechanism with an idling function. A marble blind hole is formed in a lock core shaft on the side part of an internal key jack axial line of the lock core shaft, one side of the marble blind hole is communicated with a key jack, a spring and a marble are assembled in the marble blind hole, a lug is formed on one side of the marble and protrudes into the key jack, the other side of the marble is provided with a sliding push slot, an elongated slot is formed on the lock core shaft which is opposite to the sliding push slot, a lockout pin which is matched with the sliding push slot is arranged in the elongated slot, the front end of the lockout pin is provided with an extension part which is matched with a groove formed on a transmission block, a reset spring is arranged on the side part of the lockout pin, and a lockout pin fixing ring is arranged between the reset spring and an inner wall of a lock core shaft outer sleeve. According to the design of the lock core mechanism with the idling function, when key teeth are not matched or a lock core is subjected to a violent impact and rotated, the lock core is only in an idling state, so that the anti-theft property of the lock core is greatly improved, and the lock core mechanism with the idling function has the advantages of strong anti-theft property, low failure rate and strong reliability.

Description

A kind of lock core mechanism with lost motion functionality

Technical field

The utility model relates to a kind of lock core mechanism with lost motion functionality.

Background technology

Traditional lock core mechanism; Generally all adopt upper and lower pellet shot from a slingshot or blade as Cipher mechanism, the structure design of simple upper and lower pellet shot from a slingshot is simpler and cruder, theftproof performance a little less than; And the employing blade is as the lock core of Cipher mechanism; All be to lock through the blade of difference arrangement and the groove fit of lock core shaft's overcoat, its structure design is also more common, and the performance that anti-violence is opened is not strong yet; And in use, the key of insertion swings easily, and the feel of operation is not good, and comparatively speaking, fault rate is also higher.

Summary of the invention

In order to overcome the simplicity of design of the Cipher mechanism of common lock core mechanism in the prior art; The performance that anti-violence is opened is weak, the not good problem of feel of operation; The utility model provides a kind of lock core mechanism with lost motion functionality, and convenient, the anti-group performance that anti-violence is opened of the unlock operation of this lock core mechanism is strong, fault rate is low, good reliability.

The utility model solves the technical scheme that its technical problem adopted: comprise lock core shaft's overcoat, lock core shaft and drive block, lock core shaft is socketed in lock core shaft's outer casing internal diameter and is rotatably assorted to fixing and formation, in lock core shaft, in the lock core shaft of key hole axis sidepiece the pellet shot from a slingshot blind hole is set; One side of pellet shot from a slingshot blind hole is communicated with key hole; Assembling spring and pellet shot from a slingshot in the pellet shot from a slingshot blind hole, a side of pellet shot from a slingshot forms projection and gives prominence in key hole, and the opposite side of pellet shot from a slingshot is provided with the sliding groove that pushes away; Offer elongated slot with sliding pushing away in the relative lock core shaft of groove; Installing pushes away the lockweight that groove matches with cunning in the elongated slot, and the front end of lockweight has extension, and the groove of offering on extension and the drive block matches; The lockweight sidepiece is provided with back-moving spring, between the inwall of back-moving spring and lock core shaft's overcoat the lockweight retainer ring is set.

Sliding and pushing away groove is skewed slot or arc groove, and lockweight links to each other through sliding push jack with its extension, and sliding push jack is inclined-plane or the arc surface that is complementary with the sliding opposite face that pushes away groove.

The annulus of lockweight retainer ring for not sealing, its end form gib head and are fixed in the lock core shaft through gib head.

Between lock core shaft and drive block, set gradually locking seat, preceding clamping block, back clamping block; The front end face of locking seat is provided with and connects piece; Connect piece and link to each other with the access slot that the lock core shaft end is offered, the circumferential edges of locking base rear end face is provided with that triangle is protruding, the middle part is provided with central axis, and preceding clamping block is arranged in a crossed manner and be hinged on the central axis with the back clamping block; Before stage clip is set between the protruding opposite face of an end and the triangle of clamping block and back clamping block, preceding clamping block is provided with confined planes with the back other end of clamping block.

Offer the linked slot that is complementary with extension on the locking seat body.

The utility model is through above-mentioned concrete design, the close tooth of key do not match or lock core when impacted by violence to rotate lock core only be in idling conditions, improved the theftproof performance of lock core greatly, have and anti-ly dial that performance is strong, fault rate is low, the advantage of good reliability.

Description of drawings

The detailed content of the utility model is described below in conjunction with accompanying drawing and embodiment.

Fig. 1 is the decomposition texture sketch map of the utility model.

Fig. 2 is the assembly structure sketch map after the utility model inserts key.

Fig. 3 is the A-A sectional view of Fig. 2.

Fig. 4 is the B-B sectional view of Fig. 2.

Fig. 5 is the C-C sectional view of Fig. 2.

Fig. 6 is the structural representation of lock-out state lower extension and preceding clamping block, back clamping block.

Fig. 7 is the structural representation of unlocking condition lower extension and preceding clamping block, back clamping block.

The specific embodiment

As shown in the figure, the utility model comprises lock core shaft's overcoat 1, lock core shaft 2 and drive block 9, and lock core shaft 2 is socketed in radially to fix and form in lock core shaft's overcoat 1 and is rotatably assorted, and lock core shaft 2 is radially fixing through jump ring 28 with lock core shaft's overcoat 1 in the utility model.In lock core shaft 2, in the lock core shaft 2 of key hole 3 axis sidepieces pellet shot from a slingshot blind hole 4 is set; One side of pellet shot from a slingshot blind hole 4 is communicated with key hole 3; Assembling spring 5 and pellet shot from a slingshot 6 in the pellet shot from a slingshot blind hole 4; One side of pellet shot from a slingshot 6 forms projection 7 and gives prominence in key hole 3, and the opposite side of pellet shot from a slingshot 6 is provided with the sliding groove 8 that pushes away, and the sliding groove 8 that pushes away is skewed slot or arc groove.Offer elongated slot 10 with sliding pushing away in the relative lock core shaft 2 of groove 8; Installing pushes away the lockweight 11 that groove 8 matches with cunning in the elongated slot 10; The front end of lockweight 11 has extension 12; The groove of offering on extension 12 and the drive block 9 13 matches, and lockweight 11 links to each other through sliding push jack 17 with its extension 12, and sliding push jack 17 is inclined-plane or the arc surface that is complementary with the sliding opposite face that pushes away groove 8.Lockweight 11, extension 12 and sliding push jack 17 are done as a whole, can be one-body moldedly also can split to connect.Lockweight 11 sidepieces are provided with back-moving spring 14, between the inwall of back-moving spring 14 and lock core shaft's overcoat 1 lockweight retainer ring 15 are set, the annulus of lockweight retainer ring 15 for not sealing, and its end forms gib head 16 and is fixed in the lock core shaft 2 through gib head 16.Between lock core shaft 2 and drive block 9, set gradually locking seat 18, preceding clamping block 19, back clamping block 20; The front end face of locking seat 18 is provided with and connects piece 21; Connecing piece 21 links to each other with the access slot 22 that lock core shaft 2 ends are offered; Offer the linked slot 23 that is complementary with extension 12 on locking seat 18 bodies, the circumferential edges of locking seat 18 rear end faces is provided with that triangle is protruding 24, the middle part is provided with central axis 25, and preceding clamping block 19 and back clamping block 20 are arranged in a crossed manner and be hinged on the central axis 25; Between one end of preceding clamping block 19 and back clamping block 20 and the opposite face of triangle protruding 24 stage clip 26 is set, preceding clamping block 19 is provided with confined planes 27 with the other end of back clamping block 20.In the utility model, the elastic force of spring 5, back-moving spring 14 and stage clip 26 is designed to spring 5＞back-moving spring 14＞stage clip 26.Insert key when unblanking; The resistance that groove 29 on the key two side blocks the projection 7 on the both sides pellet shot from a slingshot 6 simultaneously and overcomes spring 5 slides each pellet shot from a slingshot 6; Cunning on each pellet shot from a slingshot 6 pushes away groove 8 slippages alignment and draws a straight line; Make as a whole lockweight 11, extension 12 and sliding push jack 17 overcome stage clip 26 under the effect of back-moving spring 14 resistance; The preceding clamping block 19 of intersection is opened around central axis 25 with back clamping block 20; And get into sliding cross part, the linked slot 23 on locking seat 18 bodies and the groove 13 on the drive block 9 that pushes away groove 8, preceding clamping block 19 and back clamping block 20, and key can drive lock core shaft 2, lockweight 11, lockweight retainer ring 15, locking seat 18, preceding clamping block 19, back clamping block 20 and drive block 9 and rotate together, and the rotation of drive block 9 is opened lock.When the lock core that uses violent means rotates; Cunning on each pellet shot from a slingshot 6 pushes away groove 8 and still is in the dislocation state, and lockweight 11 can not get into to slide and push away groove 8, and extension 12 can not get into the groove 13 on the drive block 9; Lock core is in idling conditions can not interlock drive block 9, and lock can not be opened; Even it is correct that the groove on the two side 29 has one side; One side cunning push away groove 8 and can the slippages alignment draw a straight line; But corresponding lockweight 11 that has only a side and extension 12 thereof can move and promote corresponding clamping block such as preceding clamping block 19 hinges under the effect of back-moving spring 14 change and open; Because back clamping block 20 keeps motionless, in the moving process of above-mentioned extension 12, will certainly bump the confined planes 27 to back clamping block 20 so, above-mentioned extension 12 can not continue to move into the groove 13 on the drive block 9; Lock core still is in idling conditions can not interlock drive block 9, and lock still can not be opened.After extracting key; The resistance that spring 5 overcomes back-moving spring 14 slides each pellet shot from a slingshot 6; Push away groove 8 through the cunning on the pellet shot from a slingshot 6 and promote to do as a whole lockweight 11, extension 12 and slide push jack 17 to move, the groove 13 that extension 12 breaks away from the drive blocks 9, lock core returns to idling conditions.Above-described embodiment describes a kind of preferred implementation with lock core mechanism of lost motion functionality of the utility model; Be not that design and scope to utility model limits; Under the prerequisite that does not break away from the utility model scheme; Various external form modification and improvement that those skilled in the art make the technical scheme of the utility model all should fall into a kind of protection domain with lock core mechanism of lost motion functionality of the utility model.

Claims

1. lock core mechanism with lost motion functionality; Comprise lock core shaft's overcoat, lock core shaft and drive block; Lock core shaft is socketed in lock core shaft's outer casing internal diameter and is rotatably assorted to fixing and formation; It is characterized in that in the lock core shaft (2) of key hole (3) axis sidepiece in lock core shaft (2) pellet shot from a slingshot blind hole (4) being set, a side of pellet shot from a slingshot blind hole (4) is communicated with key hole (3), assembling spring (5) and pellet shot from a slingshot (6) in the pellet shot from a slingshot blind hole (4); One side of pellet shot from a slingshot (6) forms projection (7) and gives prominence in key hole (3); The opposite side of pellet shot from a slingshot (6) is provided with the sliding groove (8) that pushes away, and offers elongated slot (10) with sliding pushing away in the relative lock core shaft (2) of groove (8), and installing pushes away the lockweight (11) that groove (8) matches with sliding in the elongated slot (10); The front end of lockweight (11) has extension (12); The groove of offering on extension (12) and the drive block (9) (13) matches, and lockweight (11) sidepiece is provided with back-moving spring (14), between the inwall of back-moving spring (14) and lock core shaft's overcoat (1) lockweight retainer ring (15) is set.

2. a kind of lock core mechanism according to claim 1 with lost motion functionality; It is characterized in that it is skewed slot or arc groove that cunning pushes away groove (8); Lockweight (11) links to each other through sliding push jack (17) with its extension (12), and sliding push jack (17) is inclined-plane or the arc surface that is complementary with the sliding opposite face that pushes away groove (8).

3. a kind of lock core mechanism with lost motion functionality according to claim 2 is characterized in that the annulus of lockweight retainer ring (15) for not sealing, and its end forms gib head (16) and is fixed in the lock core shaft (2) through gib head (16).

4. according to claim 1 or 2 or 3 described a kind of lock core mechanisms with lost motion functionality; It is characterized in that between lock core shaft (2) and drive block (9), setting gradually locking seat (18), preceding clamping block (19), back clamping block (20); The front end face of locking seat (18) is provided with and connects piece (21); Connecing piece (21) links to each other with the access slot (22) that lock core shaft (2) end is offered; The circumferential edges of locking seat (18) rear end face is provided with triangle protruding (24), the middle part is provided with central axis (25); Before clamping block (19) arranged in a crossed manner and be hinged on the central axis (25) with back clamping block (20), preceding clamping block (19) with after stage clip (26) is set between the opposite face of an end and triangle protruding (24) of clamping block (20), preceding clamping block (19) and afterwards the other end of clamping block (20) confined planes (27) is set.

5. a kind of lock core mechanism with lost motion functionality according to claim 4 is characterized in that on locking seat (18) body, offering the linked slot (23) that is complementary with extension (12).