CN201027421Y

CN201027421Y - No-load rotated theftproof lock core

Info

Publication number: CN201027421Y
Application number: CNU2007200371948U
Authority: CN
Inventors: 朱建海
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-27
Filing date: 2007-04-27
Publication date: 2008-02-27
Anticipated expiration: 2017-04-27

Abstract

The utility model relates to a race rotation anti-theft lock core, wherein, the upper end face of a locking pin on a lock cylinder of a lock core and the outer circle face of the lock cylinder are flushed, an intermediate sleeve is coaxially arranged between the lock cylinder and an outer shell, the intermediate sleeve which has a back end in link joint with an execution mechanism is provided with a slot corresponding to a locking slot on the lock cylinder in which a locking block is arranged, the upper end of the locking block is inserted in a positioning slot arranged on an inner wall of the outer shell, forming a locking match between the intermediate sleeve and the outer shell, the lower end surface of the locking block and an inner circle surface of the intermediate sleeve are flush with each other, the lower end surface of the locking block is closely contacted with the upper end surface of the locking pin. Because the lock cylinder is raced in free state and can not be positioned, the utility model is hard to be unlocked by technical unlocking tools such as unmatched keys, master keys and iron wires, etc.; moreover, because the lock cylinder is raced in free state and can not be exerted force, the lock cylinder can be prevented from being damaged, thereby the utility model has relatively good anti-theft performance.

Description

A kind of idle running anti-theft lock core

Technical field

The utility model relates to a kind of lockset, relates in particular to a kind of idle running anti-theft lock core.

Background technology

As shown in Figure 1, existing lock cylinder is by lock gall, shell, pellet shot from a slingshot and back-moving spring thereof, stop pin is formed, the executing agency of lock gall rear end and lockset is connected, offer bullet groove on the lock gall, spring eye and lock slots, pellet shot from a slingshot and back-moving spring thereof, stop pin is placed in one respectively, lock slots and bullet groove intersect vertically, pellet shot from a slingshot is cylindricality, the circumferential wall of pellet shot from a slingshot is provided with down low water, back-moving spring is arranged in the spring eye of pellet shot from a slingshot rear end, the upper end of stop pin is placed in the interior lock fit that constitutes lock gall and shell of locating slot of shell, and the lower end of stop pin is corresponding with the following low water on the pellet shot from a slingshot.When inserting key, pellet shot from a slingshot inwardly compresses spring, following low water on the pellet shot from a slingshot moves to the stop pin below, the lower end of stop pin will fall in the following low water of pellet shot from a slingshot, be that the rotatable lock courage is unblanked, the cylinder lock of this class can perhaps firmly be destroyed lock gall and shell lock fit by force by the unlocking tool technical unlocking of non-matching key such as master key, iron wire from the outside, thereby the unlatching lockset, theftproof performance is relatively poor.

Summary of the invention

The purpose of this utility model is at not enough defective of the prior art, provides a kind of and prevents that effectively violence from turning round bad lock gall, idle running anti-theft lock core that theftproof performance is good.

For achieving the above object, the utility model adopts a kind of idle running anti-theft lock core, comprise lock gall, shell, pellet shot from a slingshot and back-moving spring thereof, stop pin, offer bullet groove on the lock gall, spring eye and lock slots, pellet shot from a slingshot and back-moving spring thereof, stop pin is placed in one respectively, the upper surface of the stop pin on the lock gall and the periphery of lock gall maintain an equal level, the coaxial intermediate sleeve that is provided with between lock gall and shell, intermediate sleeve rear end and executing agency are connected, offer on the intermediate sleeve with lock gall on the corresponding groove of lock slots, one clamping block places in the groove, in the locating slot on the upper end insertion outer casing inner wall of clamping block, constitute the lock fit of intermediate sleeve and shell, the lower surface of clamping block and the inner headed face of intermediate sleeve maintain an equal level, the upper surface close neighbour of the lower surface of clamping block and stop pin.

This practicality further is set to clamping block and stop pin all is correspondingly provided with stage clip, constitutes the centripetal force of pointing to lock gall.

This practicality further is set to the clamping block shape again and is the U type, and corresponding groove place on the cylindrical of intermediate sleeve is provided with the spring base that pressing plate forms the stage clip of clamping block, the stage clip relative set; The stop pin shape is the U type, the stage clip relative set of stop pin.

The utility model is by providing a kind of idle running anti-theft lock core, the upper surface of the stop pin on the lock gall of this lock core and the periphery of lock gall maintain an equal level, the coaxial intermediate sleeve that is provided with between lock gall and shell, intermediate sleeve rear end and executing agency are connected, offer on the intermediate sleeve with lock gall on the corresponding groove of lock slots, one clamping block places in the groove, in the locating slot on the upper end insertion outer casing inner wall of clamping block, constitute the lock fit of intermediate sleeve and shell, the lower surface of clamping block and the inner headed face of intermediate sleeve maintain an equal level, the upper surface close neighbour of the lower surface of clamping block and stop pin.The utility model is when self-locking state, and pellet shot from a slingshot is in free state, and the upper surface of the stop pin of its top and the periphery of lock gall maintain an equal level, and lock gall can only dally.When the key insertion is unblanked, the stressed inside compression reseting spring of pellet shot from a slingshot, when the following low water on the pellet shot from a slingshot moved to the stop pin below, stop pin was subjected to the effect of stage clip, fall in the following low water on the pellet shot from a slingshot its lower end, the clamping block that is positioned at the stop pin upper end also and then moves down, and its upper end breaks away from shell, and its end portion falls into lock gall, lock gall and intermediate sleeve are connected, rotate lock gall then, just can drive intermediate sleeve, thereby open executing agency.Run into unpaired key or want with the unlocking tool technical unlocking of non-matching key such as master key, iron wire,, can't locate, be difficult to technical application and open because lock gall is to dally in free state always; Particularly run into the situation of thinking that violence is opened, because lock gall is idle running in free state, can't active force, thus be protected from the destruction lock gall, so the utility model theftproof performance is relatively good.

Description of drawings

Fig. 1 is the utility model background technology structural representation.

Fig. 2 is the utility model example structure schematic diagram.

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

Fig. 4 is the utility model embodiment stereogram.

Fig. 5 is the utility model example structure exploded view.

The specific embodiment

As Fig. 2,3,4, shown in 5, this practical specific embodiment is a kind of idle running anti-theft lock core, comprise lock gall 1, shell 2, pellet shot from a slingshot 3 and back-moving spring 4 thereof, stop pin 5, offer bullet groove 11 on the lock gall 1, spring eye 12 and lock slots 13, pellet shot from a slingshot 3 and back-moving spring 4 thereof, stop pin 5 is placed in one respectively, lock slots 13 intersects vertically with bullet groove 11, pellet shot from a slingshot 3 is cylindricality, the circumferential wall of pellet shot from a slingshot 3 is provided with down low water 31, back-moving spring 4 is arranged in the spring eye 12 of pellet shot from a slingshot 3 rear ends, the upper surface of the stop pin 5 on the lock gall 1 and the periphery of lock gall 1 maintain an equal level, the lower surface close neighbour of stop pin 5 is on the external surface of pellet shot from a slingshot 3, the coaxial intermediate sleeve 6 that is provided with between lock gall 1 and shell 2, the executing agency of intermediate sleeve 6 rear ends and lockset is connected, offer on the intermediate sleeve 6 with lock gall 1 on lock slots 13 corresponding grooves 61, clamping block 7 places in the groove 61, in the locating slot 21 on upper end insertion shell 2 inwalls of clamping block 7, constitute the lock fit of intermediate sleeve 6 and shell 2, the inner headed face of the lower surface of clamping block 7 and intermediate sleeve 6 maintains an equal level, the upper surface close neighbour of the lower surface of clamping block 7 and stop pin 5.Clamping block 7 shapes are the U type, openend outwardly, outer round surface and groove 61 position square crossings place in intermediate sleeve 6 have been horizontally disposed with pressing plate 10, are provided with stage clip 8 between the inner surface of pressing plate 10 and clamping block 7; Stop pin 5 shapes also are the U type, the stage clip 9 of stop pin 5 is between the inner surface of clamping block 7 and stop pin 5, two stage clips (8,9) constitute the centripetal force of pointing to lock gall 1, no matter make clamping block 7 and stop pin 5 be in upper and lower which position, can normal descend, guarantee the operate as normal of this lock core.

The utility model is when self-locking state, and pellet shot from a slingshot 3 is in free state, and the upper surface of the stop pin 5 of its top and the periphery of lock gall 1 maintain an equal level, and lock gall 1 can only dally.When the key insertion is unblanked, pellet shot from a slingshot 3 stressed inside compression reseting springs 4, when the following low water 31 on the pellet shot from a slingshot 3 moved to stop pin 5 belows, stop pin 5 was subjected to the effect of stage clip 9, fall in the following low water 31 on the pellet shot from a slingshot 3 its lower end, the clamping block 7 that is positioned at stop pin 5 upper ends also and then moves down, and its upper end breaks away from shell 2, and its end portion falls into lock gall 1, lock gall 1 and intermediate sleeve 6 are connected, rotate lock gall 1 then, just can drive intermediate sleeve 6, thereby open executing agency.Run into unpaired key or want with the unlocking tool technical unlocking of non-matching key such as master key, iron wire,, can't locate, be difficult to technical application and open because lock gall 1 is to dally in free state always; Particularly run into the situation of thinking that violence is opened, because lock gall 1 is idle running in free state, can't active force, destroy lock gall 1 thereby be protected from.

Claims

1. idle running anti-theft lock core, comprise lock gall (1), shell (2), pellet shot from a slingshot (3) and back-moving spring (4) thereof, stop pin (5), offer bullet groove (11) on the lock gall (1), spring eye (12) and lock slots (13), pellet shot from a slingshot (3) and back-moving spring (4) thereof, stop pin (5) is placed in one respectively, it is characterized in that: the upper surface of the stop pin (5) on the lock gall (1) and the periphery of lock gall (1) maintain an equal level, the coaxial intermediate sleeve (6) that is provided with between lock gall (1) and shell (2), intermediate sleeve (6) rear end and executing agency are connected, offer on the intermediate sleeve (6) with lock gall (1) on the corresponding groove of lock slots (13) (61), one clamping block (7) places in the groove (61), in the locating slot (21) on upper end insertion shell (2) inwall of clamping block (7), constitute the lock fit of intermediate sleeve (6) and shell (2), the inner headed face of the lower surface of clamping block (7) and intermediate sleeve (6) maintains an equal level, the upper surface close neighbour of the lower surface of clamping block (7) and stop pin (5).

2. idle running anti-theft lock core according to claim 1 is characterized in that: described clamping block (7) all is correspondingly provided with stage clip (8,9) with stop pin (5), constitutes the centripetal force of pointing to lock gall (1).

3. idle running anti-theft lock core according to claim 1 and 2, it is characterized in that: described clamping block (7) shape is the U type, corresponding groove (61) is located on the cylindrical of intermediate sleeve (6), is provided with the spring base that pressing plate (10) forms the stage clip (8) of clamping block (7), stage clip (8) relative set; Described stop pin (5) shape is the U type, stage clip (9) relative set of stop pin (5).