CN203296484U - A precision anti-theft safety lock cylinder - Google Patents

Abstract

The utility model relates to a lock core, in particular to accurate theftproof safety lock core. The lock comprises a lock shell, a lock core is arranged in the lock shell, a twin-body marble is arranged in a key hole in the lock core, a vertical locking mechanism is linked above the twin-body marble, a groove is formed in one side of the twin-body marble and is matched and clamped with a horizontal plug and rake locking mechanism inserted in the lock core, and the lower end of the twin-body marble is conical and can be matched with a boss part of a key for use. The utility model discloses an accurate theftproof safety lock core, it can realize two-way locking, avoids prior art lower simple tool just can open the not enough of tool to lock.

Description

A precision anti-theft safety lock cylinder

technical field

The utility model relates to a lock core, in particular to a precision anti-theft safety lock core.

Background technique

Most of the lock cylinders on the market cannot prevent technology from being opened, and do not have the effect of anti-theft. Especially in recent years, the lock-picking technology has been developing continuously. Generally, the lock cylinder can be opened within a few seconds, and even many lock cylinders that have passed the B-level certification of the Ministry of Public Security are extremely easy to be opened. Usually, as long as a tool touches the marble in the lock hole, it can be opened. When the lock is opened, the safety is very low. In order to solve this problem, the utility model designs this structure to meet the needs of the market and protect the life and property safety of customers.

Contents of the invention

In order to solve the problems of the prior art, the utility model provides a precision anti-theft safety lock cylinder, which can realize two-way locking, and avoid the shortage that a simple tool can open the lock in the prior art.

The technical scheme adopted in the utility model is as follows:

A precision anti-theft safety lock core, including a lock case, a lock cylinder is arranged in the lock casing, twin pins are arranged in the key hole in the lock cylinder, and a vertical locking mechanism is linked above the twin pins, and the There is a groove on one side of the twin pins, and the slot is engaged with the horizontal plug rake locking mechanism interspersed in the lock cylinder. The lower end of the twin pins is tapered and can be used in conjunction with the boss of the key.

Steel balls are arranged inside the twin pins, and the twin pins are linked above the steel balls.

The vertical locking mechanism includes a sealing bead fixed in the lock case, the bottom of the sealing bead is connected to the flat bead through a bead spring, the lower end of the flat bead is linked to the upper end of the twin pins, and the flat bead, bead spring and sealing bead The balls are all arranged in the sliding hole above the lock housing, and the twin pins are linked with the steel ball and the horizontal plug rake locking mechanism.

The horizontal plug rake locking mechanism includes a plug rake inserted into the lock cylinder, the outer side of the plug rake abuts against the plug rake groove on the inner wall of the lock case, and the inner side of the plug rake is separated from one side of the twin pins. The slots are matched with snap-fitting, and the two ends of the plug rake are provided with plug rake springs to automatically reset the plug rake.

There are at least two twin marbles, and each twin marble matches a steel ball.

A precise and safe anti-theft lock cylinder of the present utility model comprises a lock casing, and there is a plug rake groove in the hole of the lock casing, and a lock cylinder that can rotate 360 degrees after the correct key in the lock casing is inserted, and a lock cylinder is arranged on the lock casing. A set of twin-bodied marbles has a holding hole, and the twin-bodied pinballs can move up and down freely in the pinholes. One side of the cylinder lock is provided with a plug rake groove, and a plug rake and two plug rake springs are arranged in the plug rake groove.

The utility model adopts a group of twin pins, a set of steel balls and side plug rakes to jointly control the opening and closing of the lock core, or only a set of twin pins and side plug rakes can be used to control the opening and closing of the lock core.

The twin-bodied marbles can control the two-way locking and opening functions of the flat bead and the side plug rake.

A group of steel balls mainly play the role of controlling the twin marbles to control the opening and closing. In addition, the steel balls can also play a role in preventing the lock cylinder from being damaged by drilling.

The steel ball is only a form of controlling the twin marbles, and other methods can also be used to control the twin marbles. Or directly remove the structure similar to the steel ball, and the opening and closing are controlled by the twin pins and the single tooth of the key.

The beneficial effects brought by the technical solution provided by the utility model are:

1. Two-way locking can be realized. When an incorrect key or foreign object is used to open the lock, the flat bead or I-shaped bead locks the lock cylinder, and the other side is locked by the plug. This structure can effectively prevent the technology from opening. When provoking marbles or foreign objects are inserted into the lock cylinder and touch the steel balls, the steel balls push out the twin pins, so that the twin pins move up and lock the lock case or the height is not enough. Or the I-shaped bead locks the lock cylinder, and because the position of the square groove of the twin marbles is incorrect, the retraction of the plug rake is blocked, the plug rake locks the lock housing, and the lock cylinder is in a closed state.

2. The precision twin pins and steel balls are highly coordinated with the key teeth to realize the opening and closing function. The twin pins can also realize the opening and closing function alone, and the steel ball can also realize the anti-violence opening function.

3. A management bead can be added to one side of the twin pinball steel ball to realize the management function, and the high-precision anti-theft lock cylinder can be used as the key management function.

Compared with the prior art, the utility model has the following advantages:

1. Combining a set of twin marbles and a set of steel balls, the number of keys is large and the mutual opening rate is low.

2. The key processing technology is complicated, and the precision requires precision, so it is difficult to copy in the market, so as to ensure the safety of users.

3. One side of the twin marble steel ball is locked by a flat ball or an I-shaped ball, and the side is locked by a plug rake, so it is basically impossible to open it technically.

4. The twin marbles are processed by precision casting or other precision machine tools, which is difficult for peers to imitate, and has good anti-theft performance.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is a schematic diagram of the internal structure (locked state) of a precision anti-theft safety lock cylinder of the present utility model;

Figure 2 is a schematic diagram of the internal structure of a precision anti-theft safety lock cylinder of the present invention (inserted key state);

Figure 3 is a schematic diagram of the internal structure of a precision anti-theft safety lock cylinder of the present invention (the key is inserted and rotated);

Fig. 4 is a schematic diagram of the decomposed structure of a lock cylinder of a precision anti-theft safety lock cylinder of the present invention;

Fig. 5 is a schematic diagram of a key structure of a precision anti-theft safety lock cylinder of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

Embodiment one:

As shown in the accompanying drawings 1-5, a precision anti-theft safety lock cylinder includes a lock case 1, a lock cylinder 2 is arranged in the lock casing 1, and a twin marble 3 is arranged in the key hole in the lock cylinder 2, so that There is a vertical locking mechanism linked above the twin pins 3, and a groove 4 is opened on one side of the twin pins 3, and the groove 4 is engaged with the horizontal plug rake locking mechanism interspersed in the lock cylinder 2. The lower end of the twin pin pins 3 is tapered, and it can be used in conjunction with the boss portion 6 of the key 5 .

In this embodiment, a steel ball 7 is arranged inside the twin pins 3 , and the twin pins 3 are linked above the steel balls 7 .

The vertical locking mechanism includes a sealing bead 8 fixed in the lock case 1, the lower part of the sealing bead 8 is connected to the flat bead 10 through the bead spring 9, the lower end of the flat bead 10 is linked to the upper end of the twin pins 3, and the The flat bead 10, the bead spring 9 and the sealing bead 8 are all arranged in the sliding hole above the lock housing 1, and the twin pins 3 are linked with the steel ball 7 and the horizontal plug rake locking mechanism.

The horizontal plug rake locking mechanism includes a plug rake 11 inserted into the lock cylinder 2, the outer side of the plug rake 11 abuts against the plug rake groove 12 of the inner wall of the lock housing 1, and the inner side of the plug rake 11 is in contact with the twin body The groove 4 opened on one side of the marble 3 fits and engages, and the two ends of the plug rake 11 are provided with a plug rake spring 13 for automatically resetting the plug rake 11 .

As shown in FIG. 4 , in this embodiment, there are five twin pins 3 , and each twin pin 3 matches a steel ball 7 .

As shown in Figure 1, the sealing bead 8 and the flat bead hole of the lock shell 1 are an interference fit, the flat bead 10 and the twin pins 3 move downward under the action of the bead spring 9, and the flat bead 10 is stuck between the lock cylinder 2 and the lock. Between the shells 1, the lock cylinder 2 cannot rotate, so as to achieve the purpose of locking; the twin pins 3 move down under the thrust of the bead spring 9, and the positions of the plug rake groove 12 and the plug rake 11 are staggered, and the plug rake 11 cannot be retracted into the lock biliary 2, so as to achieve the purpose of two-way locking.

As shown in Figures 2 and 3, when the correct key is inserted, the twin pins 3 and the flat bead 10 move upwards, the bottom of the flat bead 10 is tangent to the inner hole of the lock housing 1, and the top of the twin pins 3 is in contact with the lock cylinder. 2 The outer diameter is tangent, and the plug rake groove 12 on the twin pins 3 is aligned with the plug rake 11, and the plug rake 11 retracts into the lock plug rake groove 12 under the joint action of the lock cylinder 2 rotation force and the lock shell 1 plug rake groove 12 At this time, the plug rake 11 is fully retracted within the outer circle of the lock cylinder 2, and the lock cylinder 2 can be rotated arbitrarily, so as to achieve the purpose of opening the lock cylinder.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. accurate anti-theft security lock core, comprise lock housing, in described lock housing, be provided with lock gall, it is characterized in that, in the keyhole in described lock gall, be provided with twin body pellet, described twin body pellet top interlock has vertically mechanism, described twin body pellet one side has groove, described groove coordinates inlay card with the level plug rake locking mechanism in being interspersed in lock gall, and described twin body pellet lower end is tapered, and it can be used in conjunction with the boss portion of key.

2. a kind of accurate anti-theft security lock core according to claim 1, is characterized in that, described twin body pellet inboard is provided with steel ball, the described twin body pellet of described steel ball top interlock.

3. a kind of accurate anti-theft security lock core according to claim 2, it is characterized in that, vertically mechanism wherein comprises the envelope pearl of being fixed in lock housing, described envelope pearl below connects flat pearl by the pearl spring, the upper end of the described twin body pellet of lower end interlock of described flat pearl, described flat pearl, pearl spring and Feng Zhujun are arranged in the sliding eye of lock housing top, the described twin body pellet described steel ball of interlock and level plug rake locking mechanism.

4. according to claim 2 or 3 described a kind of accurate anti-theft security lock cores, it is characterized in that, level plug rake locking mechanism wherein comprises the plug rake that is interspersed in lock gall, the described plug rake outside is resisted against the plug of the inwall of lock housing and harrows in groove, the inboard of described plug rake coordinates inlay card with the groove that described twin body pellet one side is opened, and described plug rake two ends are provided with and make the automatically reset plug rake of plug rake spring.

5. according to claim 2 or 3 described a kind of accurate anti-theft security lock cores, is characterized in that, described twin body pellet is at least 2, steel ball of each twin body pellet coupling.

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