CN217812894U - Anti-drilling lock core - Google Patents

Abstract

The utility model discloses a prevent boring lock core, including lock shell, lock courage and dial cover and horizontal bars locking device, the lock shell has the mounting hole that the axial set up, the lock courage is installed in the mounting hole, lock courage axial direction is equipped with the key hole, state horizontal bars locking device including set up in horizontal bars groove on the lock courage, set up on the lock courage and with the lateral bead hole that the horizontal bars groove communicates mutually, can horizontal bars inslot radial motion's horizontal bars, can gliding lateral bead in the lateral bead hole, prevent boring lock core still includes a round pin post be equipped with the bayonet socket on the horizontal bars the lock courage corresponds the position of bayonet socket is equipped with the jack, after the assembly, the round pin post run through in the jack with in the bayonet socket. The anti-drilling lock core with the structure can prevent the transverse bar from being drawn out, and the anti-theft performance is improved.

Description

A kind of anti-drilling lock cylinder

technical field

The utility model relates to a lock core, in particular to an anti-drilling lock core.

Background technique

The Chinese utility model patent with the publication number CN 213330452U published on June 1, 2021 discloses an anti-theft lock cylinder. The lock cylinder of this structure adopts a combination of an outer elastic lateral locking device and an inner elastic lateral locking device. Improved anti-theft effect. The pin locks and blade locks in the prior art can all be equipped with horizontal grid locking mechanisms, but these locking mechanisms with horizontal grids have certain defects. After an illegal unlocker drills the corresponding part through an electric drill, the horizontal grid can be easily pulled out. , so that the effect of horizontal grid locking is lost, and the purpose of illegal unlocking is achieved. Therefore prior art needs to be improved.

Utility model content

In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides an anti-drilling lock cylinder which can prevent the horizontal grid from being pulled out.

The technical scheme that the utility model solves its technical problem adopts is:

An anti-drilling lock core, comprising a lock housing, a lock cylinder, a dial sleeve and a horizontal grid locking device, the lock housing has an axially arranged installation hole, the lock cylinder is installed in the installation hole, and the lock cylinder A key hole is provided in the axial direction, and the horizontal grid locking device includes a horizontal grid groove arranged on the lock cylinder, a side bead hole which is arranged on the lock cylinder and communicates with the horizontal grid groove, and can be used in the The horizontal grid that moves radially in the horizontal grid groove, the side bead that can slide in the side bead hole, the anti-drilling lock cylinder also includes a pin, and a bayonet is provided on the horizontal grid. The lock cylinder is provided with a jack at the position corresponding to the bayonet socket, and after assembly, the pin penetrates through the socket and the bayonet socket.

Further, the bayonet is arranged on the second half of the horizontal grid.

Furthermore, there are two horizontal grid locking devices, which are respectively arranged on both sides of the key hole.

Furthermore, the cross-sectional shape of the pin is circular or rectangular.

The beneficial effects of the utility model are: compared with the prior art, the horizontal grid is provided with a bayonet, and the bayonet is stuck by a pin and cannot be pulled out from the lock cylinder, thereby achieving the purpose of anti-drilling and improving the anti-theft effect.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is an exploded view of an embodiment of the utility model;

Fig. 2 is a cross-sectional view of the structure shown in Fig. 1 when assembled.

Detailed ways

Fig. 1 to Fig. 2 show a kind of embodiment of the present utility model, comprise lock case 1, lock barrel 2 and dial sleeve 3 and horizontal grid locking device 4, described lock case 1 has the installation hole 11 that axially arranges, so The lock cylinder 2 is installed in the installation hole 11, the lock cylinder 2 is provided with a keyhole 21 in the axial direction, and the horizontal grid locking device 4 includes a horizontal grid groove 41 arranged on the lock cylinder 2, a set The side bead hole 42 on the lock cylinder and communicated with the horizontal grid groove 41, the horizontal grid 43 that can move radially in the horizontal grid groove 41, and the side bead 44 that can slide in the side bead hole 42 . The inventive point of this utility model is that the lock cylinder also includes a pin 5 , a bayonet 431 is provided on the horizontal grid 43 , and an insertion hole 22 is provided at the position of the lock cylinder 2 corresponding to the bayonet 431 . When the lock cylinder is assembled, the pin 5 runs through the socket 22 and the bayonet 431 . The shape and size of the bayonet 431 should meet the requirements of being able to accommodate the pins without hindering the movement of the horizontal grid 43 in the horizontal grid groove 41 . For the lock core of this structure, in the locked state, the horizontal grid is stuck between the lock cylinder and the lock housing, and the pin 5 is in the bayonet of the horizontal grid 43. After the illegal unlocker drills the corresponding position through the electric drill, he wants to Pull out the horizontal grid 43, but due to the restriction of the pin 5, the horizontal grid 43 cannot be extracted. Even if the electric drill destroys the part of the horizontal grid 43 close to the key insertion surface, due to the blocking effect of the pin, the undamaged horizontal grid remains The lock cylinder cannot be drawn out. At this time, the horizontal grid remaining in the lock cylinder will still block the lock cylinder and the lock shell, and illegal unlockers cannot unlock the lock, which plays an anti-theft role. The pin structure of the utility model can be applied to all lock cylinders with The lockset of the horizontal grid locking device, and the horizontal grid locking device can be an external elastic type or an internal elastic type. The utility model adopts an external elastic type horizontal grid locking device.

In order to further improve the anti-theft function, the bayonet 431 is arranged at the rear half of the horizontal grid 43 . Here the rear refers to the part away from where the key is inserted. Since the bayonet is located deep in the lock cylinder, it is difficult for the electric drill to destroy the bayonet and the pin, which further increases the difficulty of destroying the electric drill.

In order to further improve the anti-theft performance, there are two horizontal grid locking devices 4 which are respectively arranged on both sides of the key hole 21 .

As a preferred solution, the cross-sectional shape of the pin 5 is circular or rectangular. Of course, the cross-sectional shape of the pin 5 can also be other shapes.

The above embodiments cannot limit the scope of protection of the invention of the utility model. Without departing from the overall concept of the invention of the utility model, the replacement or change of the usual means made by those skilled in the art shall be protected by the invention of the utility model. within range.

Claims (4)

1. The utility model provides an anti-drilling lock core, includes lock shell (1), lock courage (2) and dials cover (3) and horizontal bars locking device (4), lock shell (1) has mounting hole (11) of axial setting, install lock courage (2) in mounting hole (11), lock courage (2) axial direction is equipped with key hole (21), horizontal bars locking device (4) including set up in horizontal bars groove (41) on lock courage (2), set up on the lock courage and with side pearl hole (42) that horizontal bars groove (41) are linked together, can horizontal bars (43) of radial motion in horizontal bars groove (41), can gliding side pearl (44) in side pearl hole (42), its characterized in that: the anti-drilling lock core further comprises a pin column (5), a bayonet (431) is arranged on the transverse grid (43), a jack (22) is arranged at the position, corresponding to the bayonet (431), of the lock core (2), and after assembly, the pin column (5) penetrates through the jack (22) and the bayonet (431).

2. The anti-drill lock cylinder according to claim 1, the bayonet (431) being provided in the rear half of the crosspiece (43).

3. Anti-drill lock cylinder according to claim 1, the bar locking means (4) being two, one on each side of the key hole (21).

4. The anti-drill lock cylinder according to claim 1, the cross-sectional shape of the pin (5) being circular or rectangular.

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