CN2721802Y

CN2721802Y - Safety bullet tapered end

Info

Publication number: CN2721802Y
Application number: CN 200420079552
Authority: CN
Inventors: 朱建海
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-14
Filing date: 2004-09-14
Publication date: 2005-08-31
Anticipated expiration: 2014-09-14

Abstract

The utility model relates to a lockset, in particular to an anti-theft billiard lock, comprising a lock body, a lock core which can be rotating arranged in the lock body, a stop pin slot which is arranged on the lock core and is roughly vertical to a pin tumbler bore, a lock position slot which is arranged on the circular hole inner wall of the lock body and the corresponding position of the stop pin slot, pin tumblers which are arranged in the pin tumbler bores and are provided with annular lock slots, a return spring of the pin tumbler and a lock pin which can slide in the path which is formed in the stop pin slot and the lock position slot, wherein, the adjacent adhere end of the lock pin and the lock position slot is a circular arc surface, the cross section of the lock position slot is a semicircular arc or an arc bottom slot which is a little smaller than the semicircular arc. The shape of the adjacent adhere end of the lock pin and the lock position slot is matched with the lock position slot, and the shape of the lock pin is matched with the shape of the adjacent adhere end of the lock slot on the pin tumbler. Thieves can feel nothing when switching the pin tumblers, so the antitheft character is increased. The lock pin and the lock position slot are matched by arc surfaces, so the reliability of locking is increased.

Description

A kind of anti-theft billiards tapered end

Technical field

The utility model relates to a kind of lockset, is meant a kind of anti-theft billiards tapered end especially.

Background technology

At present, theftproof performance and locking performance for ball lock head, increase the difficulty of pirate of the open, people have designed various anti-theft billiards tapered ends, as notice of authorization Augusts 13 in 2003, notification number is: CN 1117911C, application number is: 99115581.5, name is called the patent of invention of " a kind of anti-theft billiards tapered end and key ", the ball lock head of this patent comprises lock body, lock core, pellet shot from a slingshot, the pellet shot from a slingshot back-moving spring, lock body circular hole inboard has the square groove, have the side column groove on the lock core, the pellet shot from a slingshot hole, the side column groove is inboard to communicate with the side in pellet shot from a slingshot hole, and with pellet shot from a slingshot hole approximate vertical, the side column groove outside can be corresponding with the square groove of lock body circular hole inboard, the V-type groove is all arranged on each pellet shot from a slingshot, be provided with locking side column in the side column groove, the inboard of locking side column is a V-type, can match with the V-type groove on the pellet shot from a slingshot, and the outside of locking side column is a square, can match with the square groove of lock body foramen primum inboard, locking side column is provided with step, and is fixed with pressing plate on the corresponding side column groove of the step outside, is provided with the return spring of locking side column between the step of pressing plate and locking side column, the edge that lockhole on the lock core is positioned at lock core is semiclosed shape, and the hole flank of tooth is vertical with the pellet shot from a slingshot group.The pellet shot from a slingshot of band V-type groove and the locking device that locking side column matches have been adopted in this invention, unlocking tool with non-matching key can't make each pellet shot from a slingshot lock simultaneously, and the V-type groove on it is all overlapped, locking side column can not be withdrawn in lock body, so can not open, thereby it is better than the theftproof performance of common spring lock, but the return spring of its locking side column make locking side column all the time with the pellet shot from a slingshot Elastic Contact, find sensation when stealer is unblanked with detection means, reduced the theftproof performance of this lockset.

Summary of the invention

The utility model provides a kind of anti-theft billiards tapered end in order to solve the weak point that above-mentioned prior art exists, and this tapered end relies on sound or feel when stirring pellet shot from a slingshot and the mode that pirate of the open is carried out in the pellet shot from a slingshot location has been increased very big difficulty, or even can't pirate of the open.

For achieving the above object, the utility model adopts following scheme: a kind of anti-theft billiards tapered end, include the lock housing body, rotatable lock core and the locking mechanism that is arranged in the lock housing body, described locking mechanism comprises and being arranged on the lock core and pellet shot from a slingshot hole approximate vertical and the locking cotter way that is communicated with, the lock-bit groove of offering on lock housing body circular-hole internal-wall and the locking cotter way opposite position, be arranged on the pellet shot from a slingshot that has the annular lock groove in the pellet shot from a slingshot hole, the return spring of pellet shot from a slingshot and the locking pin that can in the passage of locking cotter way and the formation of lock-bit groove, slide, the shape that wherein locks the lock-bit groove close neighbour end on pin and the lock housing body matches with the lock-bit groove, described locking pin and lock-bit groove close neighbour end are arc surface, the shape of cross section of lock-bit groove is semi arch or the arcuate bottom groove that is slightly less than semi arch, and the shape that the lock slots close neighbour on locking pin and the pellet shot from a slingshot holds matches with lock slots.

The utility model further is set to: the lock slots cross sectional shape on the described pellet shot from a slingshot is a U-shaped, and the locking pin is inboard to match with lock slots, also is provided with a resetting-mechanism that makes the locking pin slide to the lock-bit groove in the locking mechanism.

Described resetting-mechanism is store the chamber by the back-moving spring that is arranged on locking cotter way two ends and is placed in one and is in the back-moving spring that locks the pin below and forms.

Also be provided with an antitheft groove of annular on the described pellet shot from a slingshot at least.

One end of described pellet shot from a slingshot close neighbour return spring is provided with the placement seat of return spring.

The beneficial effects of the utility model are: at first, the locking pin adopts cambered surface to cooperate with cambered surface with the lock-bit groove, locking pin inside edge can be slipped under the cambered surface effect in the lock slots on the pellet shot from a slingshot smoothly, reliability when cambered surface contacts this and just increased locking, locking pin in the locking mechanism is under action of reset spring, all the time slide to lock housing body inboard, during locking states, can leave certain clearance between locking pin and the pellet shot from a slingshot, make stealer when stirring pellet shot from a slingshot, can not find any sensation, increased the theftproof performance of this lock.Secondly, on pellet shot from a slingshot, be provided with antitheft groove, make the real lock slots on the more difficult discovery pellet shot from a slingshot of stealer, greatly increased the difficulty of pirate of the open.

Below in conjunction with drawings and Examples the utility model is further specified.

Description of drawings

Fig. 1 is the utility model embodiment vertical structure sectional view;

Fig. 2 is the utility model embodiment locking states transversary sectional view;

Fig. 3 is the utility model embodiment opening transversary sectional view;

Fig. 4 is the utility model billiards structure schematic diagram;

Fig. 5 is the utility model locking column latch structure schematic diagram.

Among the figure: 1, lock housing body 2, lock core 3, pellet shot from a slingshot hole 4, locking cotter way

5, lock-bit groove 6, lock slots 7, pellet shot from a slingshot 8, return spring

9, locking pin 10, storage chamber 11, back-moving spring 12, antitheft groove

13, placement seat 14, protruding rank 15, key

The specific embodiment

Shown in Fig. 1～5, the utility model embodiment adopts, a kind of anti-theft billiards tapered end, include lock housing body 1, rotatable lock core 2 and the locking mechanism that is arranged in the lock housing body 1, described locking mechanism comprises and being arranged on the lock core 2 and pellet shot from a slingshot hole 3 approximate vertical and the locking cotter way 4 that is communicated with, the lock-bit groove of offering on lock housing body 1 circular-hole internal-wall and locking cotter way 4 opposite positions 5, be arranged on the pellet shot from a slingshot 7 that has annular lock groove 6 in the pellet shot from a slingshot hole 3, the return spring 8 of pellet shot from a slingshot 7 and the locking pin 9 that can in the passage of locking cotter way 4 and 5 formation of lock-bit groove, slide, wherein lock pin 9 and be arc surface with lock-bit groove 5 close neighbours end, the shape of cross section of lock-bit groove 5 is semi arch or the arcuate bottom groove that is slightly less than semi arch, and the shape that lock-bit groove 5 close neighbours on locking pin 9 and the lock housing body 1 hold matches with lock-bit groove 5.

The utility model embodiment further is set to, lock slots 6 cross sectional shapes on the described pellet shot from a slingshot 7 are U-shaped, but it is also also not exclusive, the cross sectional shape of lock slots 6 also can be V-arrangement, arc surfaced etc., the shape of the lock slots 6 close neighbours end on locking pin 9 and the pellet shot from a slingshot 7 matches with lock slots 6, also is provided with one in the locking mechanism and makes and lock the resetting-mechanism that pin 9 slides to lock-bit groove 5.Described resetting-mechanism is store chamber 10 and is placed in one and is in the back-moving spring 11 that locks protruding rank, pin 9 two ends 14 downsides by the back-moving spring that is arranged on locking cotter way 4 two ends and forms.Also be provided with an antitheft groove 12 of annular on the pellet shot from a slingshot 7 at least, antitheft groove 12 can also can be on the right on the left side of lock slots 6, and an end of pellet shot from a slingshot 7 close neighbour's return springs 8 is provided with the placement seat 13 of return spring 8.

When the utility model is implemented, when slotting key 15, during rotational lock core 2, locking pin 9 can slide relatively with lock-bit groove 5 and card and pellet shot from a slingshot 7 on lock slots 6 in, anti-theft lock end is a unlocking condition at this moment; When lock-bit groove 5 close neighbours on locking pin 9 and the lock housing body 1 hold when aliging with lock-bit groove 5, locking pin 9 slips in the lock-bit groove 5 under the effect of back-moving spring 11, extracts key 15 this moment, pellet shot from a slingshot 7 resets under the effect of return spring 8, and anti-theft lock end is in blocking.

Claims

1, a kind of anti-theft billiards tapered end, include the lock housing body, rotatable lock core and the locking mechanism that is arranged in the lock housing body, described locking mechanism comprises and being arranged on the lock core and pellet shot from a slingshot hole approximate vertical and the locking cotter way that is communicated with, the lock-bit groove of offering on lock housing body circular-hole internal-wall and the locking cotter way opposite position, be arranged on the pellet shot from a slingshot that has the annular lock groove in the pellet shot from a slingshot hole, the return spring of pellet shot from a slingshot and the locking pin that can in the passage of locking cotter way and the formation of lock-bit groove, slide, the shape that wherein locks the lock-bit groove close neighbour end on pin and the lock housing body matches with the lock-bit groove, it is characterized in that: described locking pin (9) is arc surface with lock-bit groove (5) close neighbour end, the shape of cross section of lock-bit groove (5) is semi arch or the arcuate bottom groove that is slightly less than semi arch, and locking pin (9) matches with lock slots (6) with the shape that lock slots (6) close neighbour on the pellet shot from a slingshot (7) holds.

2, a kind of anti-theft billiards tapered end according to claim 1, it is characterized in that: lock slots (6) cross sectional shape on the described pellet shot from a slingshot (7) is a U-shaped, locking pin (9) is inboard to match with lock slots (6), also is provided with a resetting-mechanism that makes locking pin (9) slide to lock-bit groove (5) in the locking mechanism.

3, a kind of anti-theft billiards tapered end according to claim 2 is characterized in that: described resetting-mechanism is store chamber (10) by the back-moving spring that is arranged on locking cotter way (4) two ends and is placed in one and is in the back-moving spring (11) that locks pin (9) below and forms.

4, according to claim 1 or 2 or 3 described a kind of anti-theft billiards tapered ends, it is characterized in that: also be provided with an antitheft groove of annular (12) on the described pellet shot from a slingshot (7) at least.

5, according to claim 1 or 2 or 3 described a kind of anti-theft billiards tapered ends, it is characterized in that: an end of described pellet shot from a slingshot (7) close neighbour's return spring (8) is provided with the placement seat (13) of return spring (8).

6, a kind of anti-theft billiards tapered end according to claim 4 is characterized in that: an end of described pellet shot from a slingshot (7) close neighbour's return spring (8) is provided with the placement seat (13) of return spring (8).