CN201078124Y - Lock capable of enhancing anti-theft function - Google Patents

Abstract

The utility model relates to a lock with improved anti-theft function.. A push rod is formed on the top of the lock barrel and protrudes from a guide slot, a plurality of track slots are formed on the lock barrel, the key guide plate is in a shape matching the track slots and is fitted in the track slots in a movable manner, a key pit is formed at the key hole on the key guide plate, chamfers are formed on the part between front end of the key guide plate and the key pit, the key can be inserted into the key pit, the front end of the key is chamfered and its shape matches the track slots; a through hole with a limit stage on the inner side is formed on the front end of the lock barrel at the position facing the track slots, and stubs are located in the through hole in a movable manner; a through hole is formed on the front end of the shell at the position facing the through hole on the lock barrel, and a spring and a lock pin are arranged in the through hole.. With the structure described above, in locked state, the key hole will be staggered from the key pit; the lock can't be opened with a steel wire unless the lock barrel is turned by 90 degree; therefore, the lock has effective anti-theft function..

Description

A kind of lock that improves anti-theft feature

Technical field:

The utility model relates to a kind of lockset, refers in particular to a kind of lock that improves anti-theft feature.

Background technology:

The different lock of existing various forms all is direct insertion unblanking generally, as long as a key directly inserts just can twist unblanks, the lock of this form is easy to simply be opened with iron wire by the thief, does not have effectively antitheft when unblanking.

Summary of the invention:

The purpose of this utility model is in order to solve the shortcoming of above-mentioned prior art, a kind of lock that improves anti-theft feature to be provided.

For achieving the above object, the technical scheme that the utility model provides is: a kind of lock that improves anti-theft feature, include shell, lock core, send spoon plate and key, have gathering sill in the top of shell and send keyhole, the lock core top forms push rod, the lock core activity is placed in the shell, push rod is corresponding to be stretched out from gathering sill, this lock core forms a plurality of rail grooves, send spoon plate shape and movable be placed in rail groove in corresponding with rail groove, the corresponding position of keyhole of sending forms the key hole on spoon plate sending, before and after the part between front end that send spoon plate and the key hole, all become chamfering, key is placed in the key hole, this key front end is processed into chamfering and shape is also corresponding with rail groove, forms the through hole of inboard band limited step in the position of the front end respective carter groove of lock core, and activity is placed with fore-set in the hole, on the front end of the shell position corresponding, also form through hole, place spring and lock pin in the hole with the through hole of lock core.

After adopting the lock of said structure, when sealed state, can stagger by occurrence positions in keyhole and key hole, if want to use iron wire to unblank, must change 90 degree bent angles, so just effectively played antitheft function.

Description of drawings:

Fig. 1 is the shape assumption diagram of the utility model lock;

Fig. 2 is the shell vertical view of the utility model lock;

Fig. 3 is the A-A sectional view that is locked under the locking state of the present utility model;

Fig. 4 is the A-A sectional view that is locked under the released state of the present utility model;

Fig. 5 is the B-B sectional view of Fig. 2;

Fig. 6 is a lock core outline drawing of the present utility model;

Fig. 7 is the C-C sectional view of Fig. 6;

Fig. 8 is the outline drawing that the utility model send spoon plate;

Fig. 9 is the vertical view that the utility model send spoon plate;

Figure 10 is the lateral view that the utility model send spoon plate;

Figure 11 is the lateral view of the utility model key;

Figure 12 is the upward view of the utility model key.

The specific embodiment:

Now elaborate the utility model in conjunction with the accompanying drawings:

As accompanying drawing 1～shown in Figure 2, lock of the present utility model includes shell 1, lock core 2, send spoon plate 3 and key 4, the top of shell 1 has gathering sill 5 and send keyhole 6, lock core 2 tops form push rod 7, lock core 2 activities are placed in the shell 1, push rod 7 is corresponding to be stretched out from gathering sill 5, this lock core 2 forms the rail groove 8 of herring-bone form, send spoon plate 3 shapes and rail groove 8 corresponding and movable being placed in the rail groove 8, send the position of keyhole 6 to form key hole 9 in the anterior correspondence of sending spoon plate 3, four angles all become chamfering 10 before and after the part between front end face that send spoon plate 3 and the key hole 9, key 4 is placed in the key hole 9, these key 4 front ends are processed into chamfering 18 and shape is also corresponding with rail groove 8, and each tooth 11 is different in size about it, all form the through hole 13 of inboard band limited step 12 in the position of the front end both sides of lock core 2 respective carter groove 8, activity is placed with fore-set different in size 14 in the hole, on the corresponding position of the through hole 13 of the front end of shell 1 and lock core 2, also form through hole 15, place spring 16 and lock pin 17 in the hole, this lock pin 17 also is different in size, above-mentioned chamfering 10,18 can play the effect of guiding lock pin 17 motions, after key 4 moves to through hole 13 on the lock core 2, fore-set 14 and lock pin 17 are pushed by key 4, make their contact point all be positioned at shell 1 and send on the boundary line of spoon plate 3 the realization release.

Claims (1)

1. lock that can improve anti-theft feature, include shell (1), lock core (2), send a spoon plate (3) and key (4), it is characterized in that: have gathering sill (5) in the top of shell (1) and send keyhole (6), lock core (2) top forms push rod (7), lock core (2) activity is placed in the shell (1), push rod (7) is corresponding to be stretched out from gathering sill (5), this lock core (2) forms a plurality of rail grooves (8), send a spoon plate (3) shape and movable be placed in rail groove (8) in corresponding with rail groove (8), send the position of keyhole (6) to form key hole (9) sending a spoon plate (3) to go up correspondence, before and after the part between front end that send a spoon plate (3) and the key hole (9), all become chamfering (10), key (4) is placed in the key hole (9), this key (4) front end is processed into chamfering (18) and shape is also corresponding with rail groove (8), form the through hole (13) of inboard band limited step (12) in the position of the front end respective carter groove (8) of lock core (2), activity is placed with fore-set (14) in the hole, on the front end of shell (1) position corresponding, also form through hole (15), place spring (16) and lock pin (17) in the hole with the through hole (13) of lock core (2).

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