CN2739303Y - Position-variable secondary-inserting anti-prizing ball lock head - Google Patents

Abstract

The utility model relates to a position-variable secondary-inserting anti-prizing cylinder lock head, relating to an anti-prizing cylinder lock head in the field of a small hardware. The position-variable secondary-inserting anti-prizing cylinder lock head comprises a lock head with a keyhole, a lock core which is homocentrically installed in the lock head and is provided with a key groove, cylinder holes which are correspondingly arranged on the lock head and the lock core, and cylinders arranged in the cylinder holes. The shape of the keyhole of the lock head is a rectangle. The shape of the key groove of the lock core is an s shape, and the keyhole and the key groove are mutually vertical. The keyhole and the key groove have a definite distance in a length direction of the lock head. Trap holes which are parallel to the cylinder holes are arranged on the lock core. Due to the fact that the positions and the directions of the keyhole and the key groove are not inconsistent, thus, the use of the position-variable secondary-inserting anti-prizing cylinder lock head makes the general method of illegal unlocking not be implemented, and thereby, the security of a house door is increased.

Description

Displacement secondary plug-in type anti-prying cylinder lock head

Technical field

The utility model relates to the hardware neighborhood.What be particularly related to is a kind of ball lock head of pick-proof.

Background technology

The structure of ball lock head commonly used is formed position and shape that the position of its keyhole 4 and shape are exactly key by tapered end 1, pellet shot from a slingshot 2, lock core 3 etc. as shown in Figure 1.When key 5 insertion key, when the key tooth top moves pellet shot from a slingshot to the enable possition, key drives dead bolt and removes dead bolt hole, promptly realizes opening door.Such ball lock head is because the key notch directly is emerging in the ball lock head front, so the key section configuration is examined promptly and can be delineated out by directly observing.Therefore, be easy to open door with improper method.Such as using MASTERKRY, " pellet shot from a slingshot hook ", add people's eye, ear, the cooperation of hand etc., the safety of door is reduced greatly, bring influence to people's normal life.

Summary of the invention

The purpose of this utility model is in order to overcome existing ball lock head easily by the deficiency of opening with improper method, a kind of displacement secondary plug-in type anti-prying cylinder lock head is provided, and this displacement secondary plug-in type anti-prying cylinder lock head can stop the unlatching of the improper method that adopts MASTERKRY and so on effectively.

Realize the displacement secondary plug-in type anti-prying cylinder lock head of the utility model purpose, comprise tapered end, be installed in the lock core with a key, correspondence in the tapered end with one heart and be arranged on the pellet shot from a slingshot hole on tapered end and the lock core and be arranged on pellet shot from a slingshot in the pellet shot from a slingshot hole with a keyhole, of the present utility modelly be characterised in that the shape of the keyhole of described tapered end is a rectangle, the shape of the key of lock core is a serpentine, and keyhole is vertical each other with key, keyhole and key have certain distance at the tapered end length direction, are provided with the trap hole parallel with the pellet shot from a slingshot hole on lock core.

The utility model changes the position of the position of keyhole and shape and key and shape into different fully, and when the position of keyhole is when erectting, the position of key is a level; The shape of keyhole is a rectangle, and the shape of key is a serpentine; Keyhole and key also have certain distance at the tapered end length direction.In addition, on lock core with pellet shot from a slingshot hole parallel direction, have additional the trap hole.When key inserts keyhole, after need turn an angle (being displacement), could insert key (being that secondary inserts), only in this way key bit could push up and move pellet shot from a slingshot, reaches the purpose of opening the door.

Comparison ball lock head commonly used, this displacement secondary plug-in type anti-prying cylinder lock head has tangible characteristics: 1. because keyhole is inconsistent with position, the direction of key, thereby cut off the cooperation of eye hand, make with sensation operate unblank impossible from becoming; 2. the serpentine shape of key is unknowable by becoming as can be known, make MASTERKRY and " pellet shot from a slingshot hook " lose original effect, because want to insert key as MASTERKRY and " pellet shot from a slingshot hook ", its section serpentine shape should equally with the serpentine shape of key could insert (" S " section configuration of the key of every lock is all inequality), moreover, even when their inadequate insertions, also can be because of the restriction that is subjected to the serpentine shape, and can't adjust effect to pellet shot from a slingshot, make all pellets shot from a slingshot be in the enable possition simultaneously; 3. because the setting in trap hole makes " pellet shot from a slingshot hook " even enter key, also can can't continue to move and go to the top to move pellet shot from a slingshot because of the hook end of the pellet shot from a slingshot hook hole of falling into a trap.The use of displacement secondary plug-in type anti-prying cylinder lock head can not be implemented improper conventional method of unblanking, thereby increases the safety of door.

Description of drawings

Fig. 1 is the structural representation of the present utility model of ball lock head commonly used

Fig. 2 is that the A of Fig. 1 is to view

Fig. 3 is a structural representation of the present utility model

Fig. 4 is that the C of Fig. 3 is to view

Fig. 5 is the B-B view of Fig. 3

The specific embodiment

Shown in Fig. 3～5, the formation of this displacement secondary plug-in type anti-prying cylinder lock head comprises tapered end 7 with a keyhole 6, be installed in the lock core with a key 89, correspondence in the tapered end 7 with one heart is arranged on the pellet shot from a slingshot hole 10 on tapered end 7 and the lock core 9 and is arranged on pellet shot from a slingshot 11 in the pellet shot from a slingshot hole 10, the shape of the keyhole 6 of described tapered end is a rectangle, the shape of the key 8 of lock core is a serpentine, and keyhole 6 is vertical each other with key 8, keyhole 6 and key 8 have certain for M at the tapered end length direction, be provided with the trap hole 13 parallel with pellet shot from a slingshot hole 10 on lock core 9.Compare with ball lock head existing commonly used shown in Figure 1, the shape of both keyholes, key, position, direction are all inconsistent; Particularly the serpentine key 8 that is provided with at a distance of certain distance with keyhole 6 becomes unknowablely by original as can be known, and has additional trap hole 13.During use key 12 is inserted from keyhole 6, arrive at and clockwise rotate certain angle behind the lock core 9 and insert key 8, then key can drive dead bolt and leave dead bolt hole, opens door.

Claims (1)

1, displacement secondary plug-in type anti-prying cylinder lock head, comprise tapered end, be installed in the lock core with a key, correspondence in the tapered end with one heart and be arranged on the pellet shot from a slingshot hole on tapered end and the lock core and be arranged on pellet shot from a slingshot in the pellet shot from a slingshot hole with a keyhole, the shape that it is characterized in that the keyhole of described tapered end is a rectangle, the shape of the key of lock core is a serpentine, and keyhole is vertical each other with key, keyhole and key have certain distance at the tapered end length direction, are provided with the trap hole parallel with the pellet shot from a slingshot hole on lock core.

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