CN201158982Y

CN201158982Y - No-load rotated theftproof lock core

Info

Publication number: CN201158982Y
Application number: CNU2007200454813U
Authority: CN
Inventors: 卢东强
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-24
Filing date: 2007-08-24
Publication date: 2008-12-03
Anticipated expiration: 2017-08-24

Abstract

The utility model relates to an idling burglarproof lock cylinder, which comprises lock cylinders, an outer shell, marbles and offsetting springs of the marbles and an anti-removing piece, wherein a key hole, a marble slot and a removing piece slot are opened on the lock cylinders, the marbles, the offsetting springs of the marbles and the anti-removing piece are respectively arranged in the key hole, the marble slot and the removing piece slot, a linked sleeve is coaxially arranged between the lock cylinders and the outer shell, the deepness of the removing piece slot on the lock cylinders is corresponding with the diameter of the lock cylinders, the height of the anti-removing piece is larger than the radius of the lock cylinders and is smaller than or equal to the diameter of the lock cylinders, the marbles are arranged on the center of the anti-removing piece, the upper and the lower end surfaces of the anti-removing piece are respectively equal to the external round surfaces of the corresponding lock cylinders, two symmetrical limiting mechanisms are arranged on the positions of the anti-removing piece on the external wall of the linked sleeve, which is corresponding to the lock cylinders, the limiting mechanisms and the anti-removing piece are connected in a linking mode, and the limiting mechanisms limits the rotation of the outer shell and the linked sleeve. The utility model has the advantages that the structure is simple, and the idling burglarproof technique is adopted, thereby the burglarproof performance is good.

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 core, shell, pellet shot from a slingshot and back-moving spring thereof, anti-plectrum is formed, the executing agency of lock core rear end and lockset is connected, offer bullet groove on the lock core, spring eye and lock slots, pellet shot from a slingshot and back-moving spring thereof, anti-plectrum 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 anti-plectrum is placed in the interior lock fit that constitutes lock core and shell of locating slot of shell, and the lower end of anti-plectrum 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 anti-plectrum below, the lower end of anti-plectrum will fall in the following low water of pellet shot from a slingshot, can unblank by rotational lock core, the cylinder lock of this class can perhaps firmly be destroyed lock core 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 core, 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 core, shell, pellet shot from a slingshot and back-moving spring thereof, anti-plectrum, offer keyhole on the lock core, bullet groove, the plectrum groove, pellet shot from a slingshot and marble spring thereof, anti-plectrum is placed in one respectively, between lock core and shell, be coaxially arranged with the interlock cover, the degree of depth of the plectrum groove on the lock core is identical with the diameter of lock core, the height of anti-plectrum is greater than the radius of lock core, diameter smaller or equal to lock core, pellet shot from a slingshot is arranged in the central authorities of anti-plectrum, on the anti-plectrum, the lower surface maintains an equal level with the periphery of corresponding lock core respectively, anti-plectrum position on corresponding lock core on the outer wall of interlock cover is provided with the position-limit mechanism of two symmetries, and position-limit mechanism and anti-plectrum are connected, and position-limit mechanism constitutes spacing to the rotation of shell and interlock cover.

The anti-plectrum of this practicality can adopt two kinds of structures, and the structure in the corresponding lock also has two kinds.A kind of is that anti-plectrum is a global facility, its cross section is " Lu " font, the inboard slippage end of anti-plectrum matches with following low water on the pellet shot from a slingshot, the other end is vacant end, and be correspondingly provided with the plectrum spring, the plectrum spring other end is pressed on the lock core, interlock puts and offers and corresponding two stopper slots of plectrum groove, be provided with in the stopper slot of slippage end one side of corresponding anti-plectrum shell and interlock cover are constituted spacing limited block, the height of limited block is greater than the wall thickness of interlock cover, the outer face of limited block to the distance of center circle of lock core from equal to link the cover periphery to the distance of center circle of lock core from, the flexible restoring organ corresponding with limited block is set on shell wall, and vacant end one side of corresponding anti-plectrum then is a stopper slot; Another kind is that anti-plectrum prevents that by two dialling half sheet forms, prevent that dialling half sheet is that the center is symmetrical arranged with the pellet shot from a slingshot for two, match with following low water on the pellet shot from a slingshot respectively in the lower surface that two anti-dials half sheet, interlock puts and offers and corresponding two stopper slots of plectrum groove, be provided with in the stopper slot of corresponding anti-plectrum one side shell and interlock cover are constituted spacing limited block, the height of limited block is greater than the wall thickness of interlock cover, the outer face of limited block to the distance of center circle of lock core from equal to link the cover periphery to the distance of center circle of lock core from, the flexible restoring organ corresponding with limited block is set on shell wall, be provided with steel ball in the stopper slot of corresponding anti-plectrum one side, corresponding outer casing inner wall is provided with concave arc.

The flexible restoring organ that the utility model further is set on the shell is made of hollow briquetting and compression spring thereof.

It is two that the utility model further is set to the steel ball number.

The flexible restoring organ number that the utility model further is set on the shell again is two.

The utility model is by providing a kind of idle running anti-theft lock core, and when self-locking state, pellet shot from a slingshot is in free state, and the upper surface of the anti-plectrum in the lock core and the periphery of lock core maintain an equal level, and lock core can only dally, and the interlock cover is fixed with shell, does not rotate with lock core.When the key insertion is unblanked, the stressed inside compression marble spring of pellet shot from a slingshot, when the following low water on the pellet shot from a slingshot moved to anti-plectrum below, fell in the following low water on the pellet shot from a slingshot anti-plectrum lower end, and the limited block that is positioned at anti-plectrum upper end also and then moves down, its upper end breaks away from shell, its end portion falls into lock core, lock core and interlock cover is connected, then rotational lock core, just can drive the interlock cover, thereby open unlocking mechanism.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 core is to dally in free state always; Particularly run into the situation of thinking that violence is opened, because lock core is idle running in free state, can't active force, thus be protected from the destruction lock core, 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 embodiment 1 structural representation.

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

Fig. 4 is the utility model embodiment 1 lock-out state structural representation.

Fig. 5 is the utility model embodiment 2 structural representations.

The specific embodiment

As Fig. 2,3, shown in 4, specific embodiment of the utility model 1 is a kind of idle running anti-theft lock core, comprise lock core 1, shell 2, pellet shot from a slingshot 3 and back-moving spring 4 thereof, anti-plectrum, offer keyhole 12 on the lock core 1, bullet groove 11, plectrum groove 13, pellet shot from a slingshot 3 and marble spring 4 thereof, anti-plectrum is placed in one respectively, it is characterized in that: between lock core 1 and shell 2, be coaxially arranged with interlock cover 6, the degree of depth of the plectrum groove 13 on the lock core 1 is identical with the diameter of lock core 1, the height of anti-plectrum is greater than the radius of lock core 1, diameter smaller or equal to lock core 1, anti-plectrum is by two anti-half sheets (7 of dialling, 9) form, two anti-half sheets (7 of dialling, 9) be that the center is symmetrical arranged with pellet shot from a slingshot 3, two anti-half sheets (7 of dialling, 9) match with following low water 31 on the pellet shot from a slingshot 3 respectively in lower surface, offer and plectrum groove 13 corresponding two stopper slots 63 on the

interlock cover

6,64, be provided with in the stopper slot 63 of corresponding anti-plectrum 7 one sides shell 2 and interlock cover 6 are constituted spacing limited block 8, the height of limited block 8 is greater than the wall thickness of interlock cover 6, the outer face of limited block 8 to the distance of center circle of lock core 1 from equal to link cover 6 peripheries to the distance of center circle of lock core 1 from, the flexible restoring organ corresponding with limited block 8 is set on shell 2 walls, be provided with steel ball 10 in the stopper slot 64 of corresponding anti-plectrum 9 one sides, concave arc 21 on corresponding shell 2 inwalls.

As shown in Figure 5, the anti-plectrum 5 of specific embodiment of the utility model 2 is a global facility, its cross section is " Lu " font, anti-plectrum 5 inboard slippage ends 51 match with following low water 31 on the pellet shot from a slingshot 3, the other end is vacant end 52, and be correspondingly provided with plectrum spring 8, plectrum spring 8 other ends are pressed on the lock core 1, offer and plectrum groove 13 corresponding two stopper slots (61 on the interlock cover 6,62), be provided with in the stopper slot 61 of slippage end 51 1 sides of corresponding anti-plectrum 5 shell 2 and interlock cover 6 are constituted spacing limited block 8, the height of limited block 8 is greater than the wall thickness of interlock cover 6, the outer face of limited block 8 to the distance of center circle of lock core 1 from equal to link cover 6 peripheries to the distance of center circle of lock core 1 from, the flexible restoring organ corresponding with limited block 8 is set on shell 2 walls, correspondingly prevents that vacant end 52 1 sides of plectrum 5 then are stopper slots 62.

Enforcement 1 of the present utility model with implement 2 and be provided with different position-limit mechanisms at different anti-plectrums, can realize the antitheft effect that dallies.

Claims

1, a kind of idle running anti-theft lock core, comprise lock core (1), shell (2), pellet shot from a slingshot (3) and back-moving spring (4) thereof, anti-plectrum, offer keyhole (12) on the lock core (1), bullet groove (11), plectrum groove (13), pellet shot from a slingshot (3) and marble spring (4) thereof, anti-plectrum is placed in one respectively, it is characterized in that: between lock core (1) and shell (2), be coaxially arranged with interlock cover (6), the degree of depth of the plectrum groove (13) on the lock core (1) is identical with the diameter of lock core (1), the height of anti-plectrum is greater than the radius of lock core (1), diameter smaller or equal to lock core (1), pellet shot from a slingshot (3) is arranged in the central authorities of anti-plectrum, on the anti-plectrum, the lower surface maintains an equal level with the periphery of corresponding lock core (1) respectively, anti-plectrum position on corresponding lock core (1) on the outer wall of interlock cover (6) is provided with the position-limit mechanism of two symmetries, position-limit mechanism and anti-plectrum are connected, and position-limit mechanism constitutes spacing to the rotation of shell (2) and interlock cover (6).

2, idle running anti-theft lock core according to claim 1, it is characterized in that: described anti-plectrum (5) is a global facility, its cross section is " Lu " font, the anti-inboard slippage end of plectrum (5) (51) matches with following low water (31) on the pellet shot from a slingshot (3), the other end is vacant end (52), and be correspondingly provided with plectrum spring (8), plectrum spring (8) other end is pressed on the lock core (1), offer and corresponding two stopper slots (61 of plectrum groove (13) on the interlock cover (6), 62), be provided with in the stopper slot (61) of slippage end (51) one sides of corresponding anti-plectrum (5) shell (2) and interlock cover (6) are constituted spacing limited block (8), the height of limited block (8) is greater than the wall thickness of interlock cover (6), the outer face of limited block (8) to the distance of center circle of lock core (1) from equal interlock cover (6) periphery to the distance of center circle of lock core (1) from, on shell (2) wall, be provided with and the corresponding flexible restoring organ of limited block (8), vacant end (52) one sides of corresponding anti-plectrum (5) then are stopper slot (62), constitute above-mentioned position-limit mechanism.

3, idle running anti-theft lock core according to claim 1, it is characterized in that: described anti-plectrum is by two anti-half sheets (7 of dialling, 9) form, two anti-half sheets (7 of dialling, 9) be that the center is symmetrical arranged with pellet shot from a slingshot (3), two anti-half sheets (7 of dialling, 9) match with following low water (31) on the pellet shot from a slingshot (3) respectively in lower surface, offer and corresponding two stopper slots (63 of plectrum groove (13) on the interlock cover (6), 64), be provided with in the stopper slot (63) of corresponding anti-plectrum (7) one sides shell (2) and interlock cover (6) are constituted spacing limited block (8), the height of limited block (8) is greater than the wall thickness of interlock cover (6), the outer face of limited block (8) to the distance of center circle of lock core (1) from equal interlock cover (6) periphery to the distance of center circle of lock core (1) from, on shell (2) wall, be provided with and the corresponding flexible restoring organ of limited block (8), be provided with steel ball (10) in the stopper slot (64) of corresponding anti-plectrum (9) one sides, corresponding shell (2) inwall is provided with concave arc (21), constitutes above-mentioned position-limit mechanism.

4, according to claim 2 or 3 described idle running anti-theft lock cores, it is characterized in that: the flexible restoring organ on the described shell (2) is made of hollow briquetting (22) and compression spring (23) thereof.

5, idle running anti-theft lock core according to claim 3 is characterized in that: described steel ball (10) number is two.

6, idle running anti-theft lock core according to claim 3 is characterized in that: the flexible restoring organ number on the described shell (2) is two.