CN201614787U - an anti-theft lock - Google Patents

Abstract

The utility model discloses an anti-theft lock, which comprises a lock core, a lock core shell, a vertical pin and a locking actuator. The lock core shell is cylindrical, and the lock core is rotatably arranged inside the lock core shell. A lock hole is arranged inside, and a lock groove is arranged along the circumference of the lock hole, and several vertical pinholes are arranged side by side correspondingly at the bottom of the lock groove, and the vertical pinholes are connected to the lock cylinder and the lock cylinder shell. Two vertical pins are arranged in a matching manner, and a vertical pin spring is provided at one end of the lock core shell in the vertical pin hole; wherein, there are three lock grooves, which are evenly distributed along the circumference of the lock hole. The key of the utility model adopts a triangular structure, so it is difficult to insert the unlocking tool of an ordinary four-edged key or a four-edged lockset, which improves the anti-theft performance of the lockset. Less, simpler structure and lower cost.

Description

an anti-theft lock

technical field

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

Background technique

The existing common anti-theft lock generally consists of the following structure, including a lock core, a lock core shell, a vertical pin and a locking actuator, the lock core shell is cylindrical, and the lock core is rotatably arranged inside the lock core shell , the inside of the lock core is provided with a lock hole in the direction of the midline, and four lock slots are evenly distributed along the circumference of the lock hole, and several vertical pinholes are arranged side by side correspondingly at the bottom of the lock slot, and the vertical pinholes are connected to the lock core and In the lock core shell, two vertical pins are matchedly arranged in each vertical pin hole, and a vertical pin spring is arranged at one end of the lock core shell in the vertical pin hole; the locking actuator is directly connected with the lock core, and the locking The actuator can be a deadbolt or the like. When it works, the matching four-edged key is inserted into the lock hole, the shape of the key teeth on the key edge matches the shape of the opening of the vertical pin hole and the vertical pins can be completely pushed into the pin hole, so that each vertical The position separated between the two vertical pins in the pin hole is just the position where the lock core is separated from the lock core shell. At this time and by rotating the lock core with a key, the lock core drives the locking actuator to move, thereby performing locking or unlocking.

This existing common anti-theft lock is easily cracked by a thief and has the disadvantage of poor anti-theft performance.

Utility model content

The technical problem to be solved by the utility model is to provide an anti-theft lock with better anti-theft performance and higher security in order to overcome the above disadvantages.

In order to solve the problems of the technologies described above, the utility model adopts the following technical solutions:

An anti-theft lock, comprising a lock core, a lock core shell, a vertical pin and a locking actuator, the lock core shell is cylindrical, the lock core is rotatably arranged inside the lock core shell, and the inside of the lock core is set along the center line There is a lock hole, and a lock groove is arranged along the circumference of the lock hole, and several vertical pin holes are arranged side by side correspondingly at the bottom of the lock groove. The vertical pin holes connect the lock cylinder and the lock cylinder shell, and each vertical pin hole is matched Two vertical pins are arranged on the ground, and a vertical pin spring is arranged at one end of the lock core shell in the vertical pin hole; the feature is that there are three lock grooves, which are evenly distributed along the circumference of the lock hole, and the corresponding vertical There are three groups of pinholes, vertical pins, and vertical pin springs. When the utility model is used, a matching triangular key is required, and the undulating shape of the edge of the key matches the opening position of the vertical pin hole. When the key is inserted, the edge of the triangular key completely pushes each group of vertical pins into the vertical pin hole. The position separated between the two vertical pins in each vertical pin hole is just the position where the lock core and the lock core shell are separated, so the lock core can be rotated to unlock or close the lock. The key of the utility model adopts three Ridge structure, which is different from ordinary four-edge locks, so it is difficult to insert an ordinary four-edge key or an unlocking tool of a four-edge lock, which increases the difficulty for thieves to crack and improves the anti-theft performance of the lock. At the same time, the three-edge structure Compared with the four-sided structure, its component composition is relatively less, the structure is simpler, and the cost is lower.

As an optimization, the locking actuator is composed of a locking rod, one end of which is fixed at the front end of the lock core, and the other end extends radially out of the front end of the lock core. When used in this way, the anti-theft lock is especially suitable for use in filing cabinets. During use, the anti-theft lock is installed on the door of the filing cabinet, and a fixing rod corresponding to the locking rod can be installed on the door frame. After the key is inserted into the lock hole, the lock cylinder and The rotating body can drive the locking rod to be inserted between the fixed rod and the door frame or drawn out therein to realize closing or opening the door. It has the advantage of simple structure. Of course, other existing locking actuators can also be used during specific implementation, such as adopting a deadbolt connected to the lock cylinder, a deadbolt basket is correspondingly set on the door frame, and the key is turned to insert the deadbolt into the deadbolt basket to lock the door.

To sum up, compared with the prior art, the anti-theft lock of the present invention has the advantages of higher safety performance, good anti-theft performance, simple structure and low manufacturing cost. Especially suitable for use in filing cabinets.

Description of drawings

Fig. 1 is the structural representation of the present utility model, has inserted supporting triangular key among the figure, triangular key label 1.

Fig. 2 is a cross-sectional view along line A-A of Fig. 1 .

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

During specific implementation, as shown in Figure 1 to Figure 2, wherein label 1 is a matching triangular key, and the rest are anti-theft lock components. This anti-theft lock includes lock cylinder 2, lock cylinder shell 3, vertical bullet 4 and locking The actuator, the lock core shell 3 is cylindrical, the lock core 2 is rotatably arranged inside the lock core shell 3, the inside of the lock core 2 is provided with a lock hole along the midline direction, and the lock hole is circumferentially provided with a lock groove , the bottom of the lock groove is correspondingly provided with several vertical pinholes side by side, the vertical pinholes are connected to the lock cylinder 2 and the lock cylinder shell 3, and each vertical pinhole is matched with two vertical pinholes 4, vertically One end of the lock core shell 3 in the pin hole is provided with a vertical pin spring 7; wherein the lock groove has three, which are evenly distributed along the circumference of the lock hole, and the corresponding vertical pin hole, vertical pin 4, and vertical pin The spring 7 also has three groups. The locking actuator is composed of a locking rod 13, one end of which is fixed at the front end of the lock core 2, and the other end extends radially out of the front end of the lock core 2. The front end refers to the direction along which the key is inserted when unlocking. During specific implementation, a cylindrical housing 14 can also be set, and the lock core 2 and the lock core housing 3 are all arranged inside the housing to form a single product as a whole, and the lock core housing 3 and the housing 14 are relatively fixed. The lock core 2 can rotate around the lock core shell 3 .

This anti-theft lock needs to be used together with the matching triangular key 1. When in use, the triangular key 1 is inserted into the lock cylinder 2 from the lock hole, and the edge of the key completely pushes the vertical pin 4 of the lock groove into the vertical pin hole. , so that the separated position between the two vertical pins 4 in each vertical pin hole is just the position where the lock core 2 is separated from the lock core shell 3, and the key can be rotated to make the lock core 2 and the locking rod 13 rotate together. In addition, when in use, the anti-theft lock is installed on the door, and a fixed rod corresponding to the locking rod 13 can be installed on the door frame. After the key is inserted into the lock hole, rotating the lock cylinder and the rotating body can drive the locking rod 13 to be inserted into the fixed rod and the door frame. It can be pulled out between or from inside to close or open the door. It has the characteristics of simple structure and is especially suitable for use in filing cabinets. Of course, other existing locking actuators can also be used during specific implementation, such as adopting a deadbolt connected to the rotating body, correspondingly setting a deadbolt basket on the door frame, turning the key so that the deadbolt is inserted into the deadbolt basket to lock the door.

Claims (2)

1. theftproof lock, comprise lock core, lock core shell, vertical pellet shot from a slingshot and locking executing agency, described lock core shell is a cylindrical shape, lock core is arranged on lock core shell inside rotationally, lock core is inner to be provided with lockhole along the center line direction, lockhole week upwards forward is provided with locked groove, the locked groove bottom is set side by side with several vertical pellet shot from a slingshot holes accordingly, vertical pellet shot from a slingshot hole is communicated with lock core and lock core shell, all be provided with to coupling two vertical pellets shot from a slingshot in each vertical pellet shot from a slingshot hole, an end that is positioned at lock core shell in the vertical pellet shot from a slingshot hole is provided with vertical marble spring; It is characterized in that described locked groove has three, circumferentially evenly distributing along lockhole is provided with, and corresponding vertical pellet shot from a slingshot hole, vertical pellet shot from a slingshot, vertical marble spring have three groups equally.

2. theftproof lock as claimed in claim 1 is characterized in that, described locking executing agency is made of securing rod, and this securing rod one end is fixed on lock core foremost, and the other end radially extends the lock core front end face.

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