CN202324854U

CN202324854U - Lock

Info

Publication number: CN202324854U
Application number: CN201120501170XU
Authority: CN
Inventors: 章林峰; 罗钊
Original assignee: Wenzhou Tongyong Locks Co Ltd
Current assignee: Wenzhou Tongyong Locks Co Ltd
Priority date: 2011-12-06
Filing date: 2011-12-06
Publication date: 2012-07-11
Anticipated expiration: 2021-12-06

Abstract

The utility model discloses a lock, which mainly solves the problems that the conventional blade lock can be technically unlocked by a hook and is low in anti-theft performance. The lock is characterized in that: a round through hole (11) which penetrates through a lock body (1) and a lock core (2) is radially formed on side walls at the inner ends of the lock core (2) and the lock body (1); an anti-shift marble (12) with a tapered top, a flat-head marble (13) and a spring (14) are sequentially arranged in the round through hole (11); the flat-head marble (13) is in clearance fit with the round through hole (11); and the spring (14) is plugged by a seal (15) which is embedded into the lock body (1). Relative rotation between the lock core and the lock body is eliminated by the lock, so that the lock is effectively prevented from being technically unlocked by tools such as the hook, the anti-theft performance of the lock is improved, and the lock has a simple structure, and is convenient to process and low in cost.

Description

A kind of tapered end

Technical field

The present invention relates to a kind of lockset, be specifically related to a kind of tapered end.

Background technology

The blade lock is common a kind of lockset; Be widely used in security door, arrangements for automotive doors, safety cabinet, lock for motorcycle etc., the blade lock mainly is made up of lock body and lock core, and blade and leaf spring are installed on the lock core; The inwall of lock body is provided with and two corresponding notches of external part of blade; Tooth-engraved key in adopting, the tartar of key is driveed the both sides of the groove in the side, and this tartar is in the field of business to be also referred to as snakelike tartar.This blade is latched in following defective: because the notch on blade and the lock body is gapped; After extracting key; Lock core and lock body pin, and have small relatively rotating between lock core and the lock body, stretch in the lock core with instruments such as hooks and can stir blade; Blade is dragged in the lock core one by one, realize technology unlocking; Therefore, cause existing blade lock theftproof performance poor.

Chinese patent CN201020128744.9 provides a kind of combined anti-theft lock core, and this patent also proposes identical technical problem, but the lock core structure of this patent is complicated, and difficulty of processing is big, and cost is high.Chinese patent CN200920167359.2 provides a kind of V-type composite lock core, though also solved the problem of technology unlocking, lock core structure is complicated, difficulty of processing reaches defect of high cost greatly but still exist.

Summary of the invention

Can utilize hook to carry out technology unlocking in order to overcome existing blade lock; The deficiency of theftproof performance difference; The present invention provides a kind of simple in structure, tapered end of being convenient to process, and this tapered end is provided with the anti-pellet shot from a slingshot of dialling on original blade lock pin, eliminated relatively rotating between lock core and the lock body; Prevented effectively to carry out technology unlocking, improved theftproof performance with instruments such as hooks.

Technical scheme of the present invention is: a kind of tapered end comprises lock body and lock core, and lock core is provided with key chamber, and blade and leaf spring are installed on the lock core; Blade pass key chamber and its two ends respectively with the lock body inwall on groove corresponding; Leaf spring has the trend of promotion blade to the motion of lock body direction, and blade is provided with the rectangular central aperture that is complementary with key, and centre bore one sidewall of blade is provided with and the corresponding boss of tartar on the key; The inner sidewall of lock core and lock body radially is provided with a manhole that runs through lock body and lock core; Manhole communicates with key chamber and parallels with the direction of motion of blade, and anti-pellet shot from a slingshot, tack pellet shot from a slingshot and the spring dialled is installed in the manhole successively, is provided with ladder in the manhole of lock core and limits the anti-pellet shot from a slingshot of dialling; Tack pellet shot from a slingshot and manhole matched in clearance; Spring is by the shutoff of sealing up a door that is embedded on the lock body, is provided with and the anti-suitable bellmouth of pellet shot from a slingshot of dialling with the front end side wall of the suitable key of lock core, and anti-end of dialling pellet shot from a slingshot was positioned at the bellmouth of key when key inserted lock core fully; Just make the anti-pellet shot from a slingshot of dialling be positioned at lock core fully, the tack pellet shot from a slingshot is positioned at lock body fully simultaneously.

The outer face of described lock core is provided with anti-drilling sheet and capping, and anti-drilling sheet adopts hardness to be higher than the material of common drill bit, and anti-drilling sheet and capping are provided with and the corresponding through hole of lock core centre bore.

Described anti-drilling sheet is embedded on the lock core, and capping is coated on the edge of lock core through the fin at its edge.

Described lock body is provided with pin hole, is fixed with pin in the described pin hole, and described pin hole and manhole have same shaft centre line, and this shaft centre line is perpendicular to the lock body shaft centre line; The outer wall of the lock core at corresponding pin hole place is provided with the certain angle annular groove, and the inserting end of pin is positioned at annular groove.

Described blade be 10 and in the lock core both sides to inserting, lock core is provided with 5 jacks that penetrate, described jack be " protruding " shape, the width of blade difference of lock core both sides, the blade of a side and opposite side adjacent vanes are one group and insert in the same jack.

Boss on the described blade is located at the same side.

The described anti-pellet shot from a slingshot end of dialling is conical or spherical.

The present invention has following beneficial effect: owing to take such scheme, and when key is extracted, under the effect of spring; The anti-pellet shot from a slingshot of dialling is urged in the lock core; With lock body and lock core locking, tack pellet shot from a slingshot and manhole matched in clearance make can not relatively rotate between lock body and the lock core tack pellet shot from a slingshot between lock body and lock core; When utilizing tool technique such as hook to unblank; Need blade be pushed aside and just can touch anti-group pellet shot from a slingshot, as push blade aside and just need push the anti-pellet shot from a slingshot of dialling earlier aside, make between lock body and the lock core to produce relative rotation.Therefore, anti-dial pellet shot from a slingshot and the tack pellet shot from a slingshot can prevent effectively that lock core from rotating relative to lock body, avoid the use of instrument such as hook and carry out technology unlocking, improved theftproof performance.

Description of drawings

Accompanying drawing 1 is a structure sectional view of the present invention.

Accompanying drawing 2 is A-A structure sectional views among Fig. 1.

Accompanying drawing 3 is B-B structure sectional views among Fig. 1.

Accompanying drawing 4 is perspective view of the present invention.

Accompanying drawing 5 is exploded views of Fig. 4.

1-lock body among the figure, 2-lock core, 3-blade, 4-leaf spring, 5-key chamber, 6-groove; The 7-key, 8-centre bore, 9-tartar, 10-boss, 11-manhole, the anti-pellet shot from a slingshot of dialling of 12-; 13-tack pellet shot from a slingshot, the 14-spring, 15-seals up a door, 16-bellmouth, 17-anti-drilling sheet, 18-capping; The 19-fin, 20-pin hole, 21-pin, 22-annular groove, 23-jack.

The specific embodiment

Below in conjunction with accompanying drawing the present invention is described further:

Combine Fig. 2-shown in Figure 5 by Fig. 1; A kind of tapered end comprises lock body 1 and lock core 2, and lock core 2 is provided with key chamber 5, and blade 3 and leaf spring 4 are installed on the lock core 2; Blade 3 pass key chamber 5 and its two ends respectively with lock body 1 inwall on groove 6 corresponding; Leaf spring 4 has and promotes the trend of blade 3 to the motion of lock body 1 direction, and blade 3 is provided with the rectangular central aperture 8 that is complementary with key 7, centre bore 8 one sidewalls of blade 3 be provided with key 7 on tartar 9 corresponding boss 10; The inner sidewall of lock core 2 and lock body 1 radially is provided with a manhole 11 that runs through lock body 1 and lock core 2; Manhole 11 communicates with key chamber 5 and parallels with the direction of motion of blade 3, and anti-pellet shot from a slingshot 12, tack pellet shot from a slingshot 13 and the spring 14 dialled is installed in the manhole 11 successively, is provided with ladder in the manhole 11 of lock core 2 and limits the anti-pellet shot from a slingshot 12 of dialling; Tack pellet shot from a slingshot 13 and manhole 11 matched in clearance; Spring 14 is by 15 shutoff of sealing up a door that are embedded on the lock body 1, is provided with and the anti-suitable bellmouth 16 of pellet shot from a slingshot 12 of dialling with the front end side wall of the suitable key 7 of lock core 2, and anti-end of dialling pellet shot from a slingshot 12 was positioned at the bellmouth 16 of key 7 when key 7 inserted lock core 2 fully; Just make the anti-pellet shot from a slingshot 12 of dialling be positioned at lock core 2 fully, tack pellet shot from a slingshot 13 is positioned at lock body 1 fully simultaneously.Owing to take such scheme, when key 7 is extracted, under the effect of spring 14; The anti-pellet shot from a slingshot 12 of dialling is urged in the lock core 2; With lock body 1 and lock core 2 lockings, tack pellet shot from a slingshot 13 and manhole 11 matched in clearance make can not relatively rotate between lock body 1 and the lock core 2 tack pellet shot from a slingshot 13 between lock body 1 and lock core 2; When utilizing tool technique such as hook to unblank; Need blade 3 be pushed aside and just can touch anti-group pellet shot from a slingshot 12, as push blade 3 aside and just need push the anti-pellet shot from a slingshot 12 of dialling earlier aside, make between lock body 1 and the lock core 2 to produce relative rotation.Therefore, the anti-pellet shot from a slingshot 12 of dialling can prevent effectively that with tack pellet shot from a slingshot 13 lock core 2 from rotating relative to lock body 1, avoids the use of instrument such as hook and carries out technology unlocking, has improved theftproof performance.Two disclosed patents mentioning in the present invention and the background technology relatively, and are simple in structure, compact when improving theftproof performance effectively, are convenient to processing, and cost is low, and its effect is that two patents mentioning in the background technology are incomparable.

Combine Fig. 4, shown in Figure 5 by Fig. 1; The outer face of described lock core 2 is provided with anti-drilling sheet 17 and capping 18; Anti-drilling sheet 17 adopts high hardness material, adopts hardness to be higher than the material of common drill bit, and anti-drilling sheet 17 and capping 18 are provided with the centre bore 8 corresponding through holes with lock core 2.Anti-drilling sheet 17 blocks the centre bore of lock core 2, common drill bit can't be pierced destroy blade 3, has strengthened theftproof performance.

Combine Fig. 4, shown in Figure 5 by Fig. 1, described anti-drilling sheet 17 is embedded on the lock core 2, and capping 18 is coated on the edge of lock core 2 through the fin 19 at its edge.Simple in structure, the binding access node structure of capping 18 and lock core 2 has played the pick-proof effect.

Combine Fig. 2, shown in Figure 5 by Fig. 1, described lock body 1 is provided with pin hole 20, is fixed with pin 21 in the described pin hole 20, described pin hole 20 and manhole 11 total same shaft centre lines, and this shaft centre line is perpendicular to the lock body shaft centre line; The outer wall of the lock core 2 at corresponding pin hole 20 places is provided with the annular groove 22 of certain angle, and present embodiment is selected 90 ° for use, and the inserting end of pin 21 is positioned at annular groove 22.Manhole 11 is straight-through, easy to process with pin hole 20, and pin 21 cooperates with annular groove 22, defines the anglec of rotation of lock core 2, and the while also defines lock core 2 plaies in the axial direction or deviates from.

Combine Fig. 4, shown in Figure 5 by Fig. 1; Described blade 3 be 10 and in lock core 2 both sides to inserting; Lock core 2 is provided with 5 jacks that penetrate 23; Described jack 23 is " protruding " shape, and blade 3 width of lock core 2 both sides are different, and the blade 3 and the opposite side adjacent vanes 3 of a side are one group and insert in the same jack 23.Simple in structure, be convenient to processing, easy for installation.

Combined shown in Figure 5ly by Fig. 3, the boss 10 on the described blade 3 is located at the same side.The homonymy design of boss 10; Make and suitable key 7 variation more of this lock core 2 that can adopt two-sided design like the tartar on the key 79, the tartar 9 on key 7 two sides is symmetrical; The front end two sides of key 7 are symmetrical set bellmouth 16; Key 7 is regardless of anyway when unblanking like this, just can unblank as long as insert in the lock core 2, uses more convenient.

Combine Fig. 2, Fig. 4, shown in Figure 5 by Fig. 1, described anti-pellet shot from a slingshot 12 ends of dialling are conical or spherical.Key 7 can successfully promote anti-pellet shot from a slingshot 12 withdrawals of dialling when inserting, key 7 is prone to insert or extract.

Claims

1. tapered end; Comprise lock body (1) and lock core (2); Lock core (2) is provided with key chamber (5); Blade (3) and leaf spring (4) are installed on the lock core (2), blade (3) pass key chamber (5) and its two ends respectively with lock body (1) inwall on groove (6) corresponding, leaf spring (4) has the trend of promotion blade (3) to the motion of lock body (1) direction; Blade (3) is provided with the rectangular central aperture (8) that is complementary with key (7); Centre bore (8) one sidewalls of blade (3) be provided with key (7) on the corresponding boss of tartar (9) (10), it is characterized in that: the inner sidewall of lock core (2) and lock body (1) radially is provided with a manhole (11) that runs through lock body (1) and lock core (2), manhole (11) communicates with key chamber (5) and parallels with the direction of motion of blade (3); Anti-pellet shot from a slingshot (12), tack pellet shot from a slingshot (13) and the spring (14) dialled is installed in the manhole (11) successively; Be provided with ladder in the manhole (11) of lock core (2) and limit the anti-pellet shot from a slingshot (12) of dialling, tack pellet shot from a slingshot (13) and manhole (11) matched in clearance, spring (14) is by (15) shutoff of sealing up a door that is embedded on the lock body (1); Be provided with and the anti-suitable bellmouth (16) of pellet shot from a slingshot (12) of dialling with the front end side wall of the suitable key (7) of lock core (2); Anti-end of dialling pellet shot from a slingshot (12) was positioned at the bellmouth (16) of key (7) when key (7) inserted lock core (2) fully, just made the anti-pellet shot from a slingshot (12) of dialling be positioned at lock core (2) fully, and tack pellet shot from a slingshot (13) is positioned at lock body (1) fully simultaneously.

2. a kind of tapered end according to claim 1; It is characterized in that: the outer face of described lock core (2) is provided with anti-drilling sheet (17) and capping (18); Anti-drilling sheet (17) adopts the material of high rigidity, and anti-drilling sheet (17) and capping (18) are provided with the corresponding through hole of centre bore (8) with lock core (2).

3. a kind of tapered end according to claim 2 is characterized in that: described anti-drilling sheet (17) is embedded on the lock core (2), and capping (18) is coated on the edge of lock core (2) through the fin (19) at its edge.

4. according to claim 1,2 or 3 described a kind of tapered ends; It is characterized in that: described lock body (1) is provided with pin hole (20); Be fixed with pin (21) in the described pin hole (20); Described pin hole (20) and the total same shaft centre line of manhole (11), and this shaft centre line is perpendicular to lock body (1) shaft centre line; The outer wall of the lock core (2) that corresponding pin hole (20) is located is provided with the annular groove (22) of certain angle, and the inserting end of pin (21) is positioned at annular groove (22).

5. according to claim 1,2 or 3 described a kind of tapered ends; It is characterized in that: described blade (3) be 10 and in lock core (2) both sides to inserting; Lock core (2) is provided with 5 jacks that penetrate (23); Described jack (23) is " protruding " shape, and blade (3) width of lock core (2) both sides is different, and the blade of a side (3) is one group with opposite side adjacent vanes (3) and inserts in the same jack (23).

6. a kind of tapered end according to claim 5 is characterized in that: the boss (10) on the described blade (3) is located at the same side.

7. according to claim 1,2 or 3 described a kind of tapered ends, it is characterized in that: described anti-pellet shot from a slingshot (12) end of dialling is for conical or spherical.