CN201883782U

CN201883782U - Closed type antitheft lock

Info

Publication number: CN201883782U
Application number: CN2010206667891U
Authority: CN
Inventors: 朱江; 吴皓; 魏嘉琦; 李梦琦; 张嵛杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-17
Filing date: 2010-12-17
Publication date: 2011-06-29
Anticipated expiration: 2020-12-17

Abstract

The utility model relates to a closed type antitheft lock, which can effectively solve such problems of the conventional antitheft lock as complex structure, high cost and poor antitheft effect. The closed type antitheft lock adopts the structure that a lock cylinder is placed in a lock sleeve, a key groove is formed in the front end of the lock cylinder, a rear spring leaf is arranged in a lock cylinder rear spring leaf hole on the lock cylinder, lower pin tumblers are arranged in lower pin tumble holes behind the lock cylinder rear spring leaf hole, eccentric blind holes are formed on the lock cylinder on the outer sides of the lower pin tumbler holes, lock cylinder front spring leaf holes are formed on the two side walls of the lock cylinder in front of the lock cylinder rear spring leaf hole, a front spring leaf is arranged in the lock cylinder front spring leaf holes and is meshed with the rear spring leaf in a mutually controlled manner, a lock sleeve rear spring leaf hole and lock sleeve front spring leaf holes are formed on the lock sleeve, a first spring is arranged on a rear pin tumbler in the lock sleeve rear spring leaf hole, second springs are mounted on front pin tumblers in the lock sleeve front spring leaf holes, upper pin tumbler holes are formed behind the lock sleeve rear spring leaf hole, third springs are fixed on upper pin tumblers in the upper pin tumbler holes, and a key matched with the lock cylinder is arranged in the key groove, so as to form a closed type antitheft structure. The utility model has the advantages of simple manufacturing process, unique structure, high durability and remarkable antitheft effect.

Description

A kind of closed type theftproof lock

One, technical field

The utility model relates to theftproof lock, particularly a kind of closed type theftproof lock.

Two, background technology

Lockset is to use more a kind of device in the daily life, and is of a great variety, is broadly divided into mechanical lock and electronic lock, mechanical lock is to be equipped with key to open the complex structure of this lockset, complex operation, and the manufacturing cost height, but because the problem that exists on its structure, anti-theft effect is poor, electronic lock is to join a contactless card, reads the numerical value of contactless card with wafer and opens, yet, electronic lock cost height, the circuit complexity is subject to disturb, anti-theft effect is undesirable, thus improve and innovate imperative.

Three, summary of the invention

At above-mentioned situation, for overcoming the prior art defective, the purpose of the utility model just provides a kind of closed type theftproof lock, effectively solves present anti-theft lock structure complexity, cost height, the problem of anti-theft effect difference.

The technical scheme that the utility model solves is, comprise lock tube, lock core, last pellet shot from a slingshot and following pellet shot from a slingshot, lock core places in the lock tube, in the lock core front end key is arranged, back shell fragment is arranged in the shell fragment hole behind the lock core on the lock core, on the lock core at rear, shell fragment hole lower marble hole is arranged behind the lock core, following pellet shot from a slingshot is arranged in the lower marble hole, on the lock core in the lower marble hole outside the eccentric blind hole that is communicated with lower marble hole is arranged, the preceding shell fragment hole of lock core is arranged on the lock core two side in the place ahead, shell fragment hole behind the lock core, the preceding shell fragment that is installed in the shell fragment groove of shell fragment both sides, back is arranged in the shell fragment hole before the lock core, preceding shell fragment, back shell fragment cross complaint is interlocked, have respectively on the lock tube with lock core after the shell fragment hole, shell fragment hole behind the corresponding lock tube in shell fragment hole before the lock core, shell fragment hole before the lock tube, on the back pellet shot from a slingshot behind the lock tube in the shell fragment hole first spring is arranged, on the preceding pellet shot from a slingshot before the lock tube in the shell fragment hole second spring is housed, the last pellet shot from a slingshot hole that is communicated with lower marble hole is arranged on the lock tube at rear, shell fragment hole behind the lock tube, be fixed with the 3rd spring on the last pellet shot from a slingshot in the last pellet shot from a slingshot hole, the key that matches with lock core is arranged in the key, constitute the closed type theft-prevention structure.

The utility model manufacturing process is simple, the structure uniqueness, when not using match key operated, priority is carried out twice locking, various skilled unlocking personnel are had no way of doing it, and sturdy and durable, anti-theft effect is very good, being that at present commercially available theftproof lock institute is incomparable, is that one on the lockset innovated greatly.

Four, description of drawings

Fig. 1 is a structural perspective of the present utility model (partly cuing open).

Fig. 2 is a lock tube structural front view of the present utility model.

Fig. 3 is a lock tube structure side view of the present utility model.

Fig. 4 is a lock tube structure vertical view of the present utility model.

Fig. 5 is a lock core structure lateral view of the present utility model.

Fig. 6 is a lock core structure vertical view of the present utility model.

Fig. 7 is that the A-A of the utility model Fig. 6 is to sectional view.

Fig. 8 is a back of the present utility model elastic piece structure front view.

Fig. 9 is a preceding elastic piece structure front view of the present utility model.

Figure 10 is a preceding elastic piece structure stereogram of the present utility model.

Figure 11 is a Key structure front view of the present utility model.

Five, the specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.

Provide by Fig. 1-Figure 11, the utility model comprises lock tube, lock core, last pellet shot from a slingshot and following pellet shot from a slingshot, lock core 1 places in the lock tube 2, key 3 is arranged in the lock core front end, back shell fragment 4 is arranged in the shell fragment hole 19 behind the lock core on the lock core, on the lock core at rear, shell fragment hole lower marble hole 18 is arranged behind the lock core, following pellet shot from a slingshot 5 is arranged in the lower marble hole, on the lock core in the lower marble hole outside the eccentric blind hole 6 that is communicated with lower marble hole is arranged, the preceding shell fragment hole 20 of lock core is arranged on the lock core two side in the place ahead, shell fragment hole behind the lock core, the preceding shell fragment 7 that is installed in shell fragment both sides, the back shell fragment groove 24 is arranged in the shell fragment hole before the lock core, preceding shell fragment, back shell fragment cross complaint is interlocked, have respectively on the lock tube with lock core after the shell fragment hole, shell fragment hole 21 behind the corresponding lock tube in shell fragment hole before the lock core, shell fragment hole 22 before the lock tube, first spring 9 is arranged on the back pellet shot from a slingshot 8 behind the lock tube in the shell fragment hole, on the preceding pellet shot from a slingshot 25 before the lock tube in the shell fragment hole second spring 10 is housed, the last pellet shot from a slingshot hole 23 that is communicated with lower marble hole is arranged on the lock tube at rear, shell fragment hole behind the lock tube, be fixed with the 3rd spring 12 on the last pellet shot from a slingshot 11 in the last pellet shot from a slingshot hole, the key that matches with lock core is arranged in the key, constitute the closed type theft-prevention structure.

In order to guarantee result of use, shell fragment 7 constitutes integrative-structure by perpendicular body and horizontal body before said, the front end of perpendicular body has horizontal body, the upper surface of horizontal body, medial surface respectively with the upper surface of perpendicular body, medial surface on same horizontal plane, the height of perpendicular body is greater than the height of horizontal body, the external surface of perpendicular body is and the corresponding to arc of external surface of lock core, puts down the taper under both sides are tilted in the middle of the inner surface of perpendicular body is; The shell fragment groove 24 that has the horizontal body size with preceding shell fragment to match on shell fragment 4 both sides, said back; Said upward pellet shot from a slingshot hole 23 and lower marble hole 18 all have two row; First groove 15 that key body 14 both sides at handle 13 rear portions of said key have the perpendicular body inboard with preceding shell fragment to match, have on the key body at the first groove rear portion and the key body at shell fragment lower end corresponding second groove 17, the second groove rear portions, back on have and corresponding through hole 16 of lower marble hole or the 3rd groove.

Anti-pirate of the open know-why of the present utility model: 1, under the normal opening: a, when not inserting key, preceding shell fragment and back shell fragment are in opening, the horizontal body (i.e. the brake platform of Tu Chuing) of preceding shell fragment cooperates with the shell fragment groove of back shell fragment, and last pellet shot from a slingshot enters lock core and is in the lock state.B, shell fragment and moving it before the end in contact before using when key operated at first key, the horizontal body of preceding shell fragment breaks away from the shell fragment groove of back shell fragment, the back shell fragment also moves up in the process that key continues to advance, preceding shell fragment and back shell fragment will be in the lock state, when all inserting desired location, goes up by key pellet shot from a slingshot, following pellet shot from a slingshot is in the place of cross surface mutually of lock core and lock tube, at this moment go up pellet shot from a slingshot, following pellet shot from a slingshot is in opening, and shell fragment and back shell fragment drop down onto position before not inserting key next time in the effect of second spring and first spring before the making with preceding shell fragment and back first groove that matches of shell fragment and second groove of key root setting, promptly be in opening, thereby finish whole opening process.

2, the antitheft open procedure and the know-why of unnormal unlocking: when foreign matter carries out unnormal unlocking, foreign matter at first will be by preceding shell fragment and back shell fragment, because braking mutually with the back shell fragment, preceding shell fragment cause the back shell fragment to move when stirring the back shell fragment in the ban, when at first stirring preceding shell fragment, stir the back shell fragment again, at this moment two shell fragments all will be in the lock state, shell fragment and back shell fragment before if foreign matter has at first been dialled, when stirring the following pellet shot from a slingshot of rear then, at this moment want to reach and unblank that lock core is rotated clockwise or counterclockwise is stressed for purpose, because lock core is provided with eccentric blind hole, even last pellet shot from a slingshot and following pellet shot from a slingshot are allocated to opening, and then shell fragment is returned to opening with the back shell fragment before making, at this moment owing to two list pellet shot from a slingshot and following pellet shot from a slingshot and must have wherein and one be listed under the effect of eccentric blind hole, enter in the eccentric blind hole and be in the lock state, finish the secondary locking, at this moment before shell fragment and back shell fragment will make key be in full closeding state.

Feature of the present utility model is:

1, the upper end of two row lower marble holes on the lock core is provided with eccentric blind hole, and the lock core front end is provided with the forward and backward shell fragment of lock core hole, and the forward and backward shell fragment in the forward and backward shell fragment of the lock core hole is in mutual interlock control;

2, the root of key is provided with forward and backward shell fragment and is in the first identical groove and second groove;

3, forward and backward shell fragment is respectively arranged with horizontal body (being convex body) and shell fragment groove (being concave volume), mutually interlock;

4, rotate when stressed if stir the wherein upper and lower pellet shot from a slingshot of row at lock core, another list pellet shot from a slingshot or down pellet shot from a slingshot will enter in the eccentric blind hole of lock core, finish the secondary locking.

The utility model novel structure uniqueness is made processing simply, and cost is low, good anti-theft effect, when using foreign matter to open, the utility model lockset successively carries out twice locking, various skilled unlocking personnel are had no way of doing it, and anti-theft effect is that existing product institute is incomparable.

Claims

1. closed type theftproof lock, comprise lock tube, lock core, last pellet shot from a slingshot and following pellet shot from a slingshot, it is characterized in that, lock core (1) places in the lock tube (2), key (3) is arranged in the lock core front end, back shell fragment (4) is arranged in shell fragment hole (19) behind the lock core on the lock core, lower marble hole (18) is arranged on the lock core at rear, shell fragment hole behind the lock core, following pellet shot from a slingshot (5) is arranged in the lower marble hole, on the lock core in the lower marble hole outside the eccentric blind hole (6) that is communicated with lower marble hole is arranged, the preceding shell fragment hole (20) of lock core is arranged on the lock core two side in the place ahead, shell fragment hole behind the lock core, the preceding shell fragment (7) that is installed in the back shell fragment both sides shell fragment grooves (24) is arranged in the shell fragment hole before the lock core, preceding shell fragment, back shell fragment cross complaint is interlocked, have respectively on the lock tube with lock core after the shell fragment hole, shell fragment hole (21) behind the corresponding lock tube in shell fragment hole before the lock core, shell fragment hole (22) before the lock tube, on the back pellet shot from a slingshot (8) behind the lock tube in the shell fragment hole first spring (9) is arranged, on the preceding pellet shot from a slingshot (25) before the lock tube in the shell fragment hole second spring (10) is housed, the last pellet shot from a slingshot hole (23) that is communicated with lower marble hole is arranged on the lock tube at rear, shell fragment hole behind the lock tube, be fixed with the 3rd spring (12) on the last pellet shot from a slingshot (11) in the last pellet shot from a slingshot hole, the key that matches with lock core is arranged in the key, constitute the closed type theft-prevention structure.

2. closed type theftproof lock according to claim 1, it is characterized in that, shell fragment (7) constitutes integrative-structure by perpendicular body and horizontal body before said, the front end of perpendicular body has horizontal body, the upper surface of horizontal body, medial surface respectively with the upper surface of perpendicular body, medial surface on same horizontal plane, the height of perpendicular body is greater than the height of horizontal body, the external surface of perpendicular body be the corresponding to arc of external surface with lock core, flat in the middle of the inner surface of perpendicular body is, the taper under both sides are tilted to.

3. closed type theftproof lock according to claim 1 is characterized in that, the shell fragment groove (24) that has the horizontal body size with preceding shell fragment to match on shell fragment (4) both sides, said back.

4. closed type theftproof lock according to claim 1 is characterized in that, said upward pellet shot from a slingshot hole (23) and lower marble hole (18) all have two row.

5. closed type theftproof lock according to claim 1, it is characterized in that, first groove (15) that key body (14) both sides at the handle of said key (13) rear portion have the perpendicular body inboard with preceding shell fragment to match, have on the key body at the first groove rear portion and back shell fragment corresponding second groove in lower end (17), have on the key body at the second groove rear portion and corresponding through hole of lower marble hole (16) or the 3rd groove.