CN201771271U - Anti-theft lock cylinder device - Google Patents

Abstract

The utility model discloses an anti-theft lock core device, it mainly includes lock shell and lock core, and the lock core setting is in the lock shell, and its inside insertion groove of having seted up wears to be equipped with on lock shell and the lock core and wears to be equipped with the hole of putting, and wears to put downthehole elastic component, go up the lock pearl and lock the pearl down. The utility model discloses mainly borrow and set longer long lock pearl to by nearest inserting groove open-ended lower lock pearl in the lock core, make the clearance of inserting the groove become very narrow, and let to steal the utensil and can't insert, and even insert by force, also can push long lock pearl to the lock shell in, still make the lock core can't rotate for the lock shell, simultaneously, the operator also can't continue to try other length of locking pearl down towards the lock core more depths to reach the effect of indeed preventing burglary.

Description

Anti-theft lock cylinder device

technical field

The utility model relates to a lock cylinder device; in particular, it refers to an anti-theft lock cylinder device which can prevent objects other than keys from being inserted into the lock cylinder to try out the length of the lock bead to complete unlocking.

Background technique

For a long time, the social problem of theft has always existed in every country, and modern people's concept of personal privacy and security has increased, so the product "lock" has been derived, and it has been widely used in various doors and windows in life. , vehicles, and lockers, etc., in order to achieve the effect of anti-theft, property protection and self-safety.

A general lock mainly includes a lockset composed of a lock housing and a lock cylinder, and a corresponding key. By setting more than two perforations in the lock case and lock cylinder and putting lower lock beads of different lengths, inserting a key with a specific scale into the lock cylinder, propping each lower lock bead so that its end edge is located in the lock The edge where the shell and the lock cylinder meet allows the user to use the key to drive the lock cylinder to rotate to unlock the lock; after the key is pulled out, each lower lock bead will reset and snap into the perforation connecting the lock shell and the lock cylinder, so that the lock shell and the lock cylinder are connected. Lock cylinder can't produce relative rotation and lock. That is to say, if a non-matching key is used, the end edges of all the lower lock beads cannot be moved to the tangent position with the inner edge of the lock housing, and the lower lock beads stuck between the lock housing and the lock cylinder will make the Relative rotation cannot be produced between the lock casing and the lock cylinder so that the unlocking action cannot be completed.

However, although the known lower lock beads are designed with different lengths, the difference in size is very small, and the insertion slot in the lock cylinder has a very spacious gap, so those who are interested only need to pass the tool (such as a master key) through all the lock beads. By penetrating into the lock cylinder through the above-mentioned gap, the distance that each lower lock bead needs to be pushed up can be easily tried out, thereby pushing the lower lock bead to complete unlocking, so the anti-theft performance is not good.

Utility model content

The technical problem to be solved by the utility model is to provide an anti-theft lock cylinder device, which can prevent objects other than keys from being inserted into the lock cylinder to try out the length of the lock bead to complete unlocking.

In order to solve the above technical problems, the first technical solution adopted by the utility model is an anti-theft lock cylinder device, which mainly includes a lock casing and a lock cylinder, the lock cylinder is coaxially arranged in the lock casing, and the lock cylinder There is an insertion slot inside, and more than two piercing holes are pierced on the lock shell and the lock cylinder, and each piercing hole is provided with an elastic component, an upper lock bead and a lower lock of different lengths. beads; the length of the lower locking beads closest to the opening of the insertion groove is greater than that of the other lower locking beads.

The cross-section of the inserting groove is straight, cross or circular. The end of the locking bead is in the shape of a cone angle.

The second technical solution adopted by the utility model is an anti-theft lock cylinder device, which mainly includes a lock casing, a lock cylinder, and more than two hollow lock strips, and the lock cylinder is coaxially arranged on the lock casing. Among them, an insertion slot is opened inside the lock core, and more than two insertion slots are provided through the surface of the lock core, grooves corresponding to the insertion slots are opened on the lock shell, and the lock strips are arranged on the In the insertion groove, each locking strip is provided with elastic components and protrusions of different heights; the height of the protrusion of the locking strip closest to the opening of the insertion slot is greater than the height of the protrusions of other locking strips.

Wherein, the convex parts of the adjacent locking strips are arranged in a form of facing up, down, left, and right. A through hole is added near the opening of the insertion slot on the lock case and the lock core, and an elastic component, a locking bead, and a long lock bead are arranged in the through hole.

The third technical solution adopted by the utility model is an anti-theft lock cylinder device, which mainly includes a lock casing, a lock cylinder, and more than two hollow lock strips, and the lock cylinder is coaxially arranged on the lock casing. Among them, an insertion slot is opened inside the lock core, and more than two insertion slots are provided through the surface of the lock core, grooves corresponding to the insertion slots are opened on the lock shell, and the lock strips are arranged on the In the above-mentioned piercing groove, and a jack is opened in the lock bar, the side outer edge of the lock bar is further provided with a pressing part, and an elastic component is arranged below the press part; the jack of the adjacent lock bar They are respectively arranged to be offset on the opposite end sides, and the pressing parts are respectively arranged to be located at opposite ends of the same side.

Wherein, a through hole is added near the opening of the insertion slot on the lock case and the lock core, and an elastic component, an upper lock bead and a long lock bead are arranged in the through hole.

The fourth technical solution adopted by the utility model is an anti-theft lock cylinder device, which mainly includes a lock casing, a front lock cylinder, and a rear lock cylinder, and the front lock cylinder is coaxially arranged in the lock casing , the front lock core is adjacent to the front end with an insertion part, the rear lock core is coaxially sleeved in the front lock core and is located at the rear end of the insertion part; the lock shell is provided with More than one piercing hole, the piercing hole is provided with an elastic component, a locking bead and a long locking bead.

Wherein, the end of the locking bead is in the shape of a cone angle.

The beneficial effect that the utility model can reach is:

1. According to the structure of the first technical solution of the utility model, when the long lock ball is in the locked state, its front end protrudes beyond the center line of the insertion groove, so that the gap between the opening of the insertion groove becomes very large. Narrow, so that the thief cannot be inserted, so the locking effect is good and the security is high. And even if the stealing tool is improved so that it can be inserted into the insertion slot with a narrow gap to support the long lock bead towards the lock shell, the end of the long lock bead will pass through the lock shell and the lock core from the insertion hole of the lock cylinder. The junction is moved to the penetration hole of the lock shell, causing the lock cylinder to be unable to rotate relative to the lock shell. At the same time, the operator cannot continue to test the length of other lower lock beads at a deeper level; Those who try to use a tool to unlock it forcibly will easily mistake the said notch as the end edge of the lower bead, and it is difficult to try out the actual length of each lower bead. If the notch on the surface of the upper and lower bead is added, the It can make it more difficult for the edge where the upper and lower lock beads meet to be tested accurately, so the utility model can achieve the effect of definite anti-theft.

2. According to the structure of the second technical solution of the utility model, the height of the convex part of the lock strip closest to the opening of the insertion slot is greater than the height of the convex parts of other lock strips to form a high bump, so that the high bump It has the same effect as the aforementioned long lock beads to achieve the effect of strengthening anti-theft. It is also possible to set the protrusions of the adjacent lock strips in a vertical, left, and right relative shape, and increase their height to form a high bump, so that the gap between the insertion slots becomes very narrow, so that the thief cannot be inserted into the mobile , so as to improve the anti-theft effect of this type of lock cylinder. In addition, this type of lock cylinder can also be set so that the interior of the lock strip has no convex part; the sockets of the adjacent lock strips are respectively set at the opposite end edges, and the pressing parts are respectively It is arranged at opposite ends of the same side, so that one end of the socket and the edge of the locking strip maintain a larger width, and the gap between the insertion groove becomes very narrow, so that it has the same height as the aforementioned high bump The effect is to achieve the effect of strengthening the anti-theft.

3. The utility model combines the characteristics of the lock bead type and the lock row type anti-theft lock cylinder device, and a piercing hole is added near the opening of the insertion groove on the lock shell and the lock cylinder, and the piercing hole is provided with The elastic component, the lock bead, and the long lock bead make the long lock bead at the opening of the insertion slot, narrowing the gap of the insertion slot, and cooperate with the special design of the rear lock strip to prevent theft from being inserted activities, further improving the anti-theft effect of the lock cylinder.

4. The utility model can also be applied to plum blossom locks. The utility model can add a long lock bead adjacent to the front end of the lock shell to fill the space for the key insertion, and make the long lock bead The top end is pushed into the lock case so that the front lock cylinder cannot rotate, so the anti-theft effect can be effectively improved.

Description of drawings

Fig. 1 is a three-dimensional exploded schematic diagram 1 of the first embodiment of the utility model;

Fig. 2 is the three-dimensional schematic view of the first embodiment of the utility model;

Fig. 3 is a schematic cross-sectional view of the A-A cross-section of Fig. 2 after the key is inserted;

Fig. 4 is a three-dimensional exploded schematic diagram II of the first embodiment of the utility model;

Fig. 5 is a three-dimensional exploded schematic diagram of the first embodiment of the utility model;

Fig. 6 is a three-dimensional exploded schematic diagram 1 of the second embodiment of the present invention;

Fig. 7 is a three-dimensional exploded schematic diagram II of the second embodiment of the present invention;

Fig. 8 is a three-dimensional exploded schematic diagram of the combined application of the first and second embodiments of the present utility model;

Fig. 9 is a schematic three-dimensional exploded view of the second embodiment of the utility model;

Fig. 10 is a three-dimensional exploded schematic view of the third embodiment of the utility model;

Fig. 11 is a schematic cross-sectional view cut along the axial direction of the lock housing after the key is inserted according to the third embodiment of the present invention.

Explanation of reference signs:

1 lock case 10 piercing hole 11 groove

2 Lock Cylinder 20 Insertion Slot 21 Insertion Hole

22 Penetrating groove 3 Key 30 Deep hole

31 Groove 4 Elastic component 5 Locking bead

50 Scores 6 Lower Lock Beads 6’ Long Lock Beads

60 Score 7 7 Lock Strip 70 Convex

70’ high bump 71 socket 72 pressing part

8 Torx lock 80 Lock case 800 Piercing hole

81 Front lock cylinder 810 Insertion part 811 Insertion hole

812 Positioning piece 82 Rear lock cylinder 820 Piercing hole

Detailed ways

In order to facilitate a more detailed and clear understanding of the purpose, functions and structural features of the present utility model, the following preferred embodiments are listed and described with reference to the accompanying drawings.

See Figures 1 through 4.

It can be seen from the figure that the anti-theft lock cylinder device according to the first embodiment of the present invention mainly includes a lock case 1 and a lock cylinder 2 . The lock core 2 is coaxially arranged in the lock case 1 , and an insertion slot 20 is opened inside it for inserting the key 3 .

As far as the in-line insertion groove 20 is concerned, two or more insertion holes 10, 21 that are orthogonal to the insertion groove 20 are respectively perforated on both sides of the lock case 1 and the lock cylinder 2, and the two sides The piercing holes 10, 21 are parallel to each other, and the elastic components 4, the upper locking beads 5, and the lower locking beads 6 of different lengths are placed in the piercing holes 10, 21; The length of the lower lock bead 6 is slightly greater than the distance from the center line of the insertion groove 20 to the junction of the lock case 1 and the lock cylinder 2, forming a long lock bead 6', so that the length of the long lock bead 6' is greater than that of other lower lock beads 6. In addition, in order to strengthen its structural strength, the diameter of the long lock bead 6' is also larger than that of the other lower lock bead 6. In addition, the upper lock ball 5 whose central axis does not intersect with the central axis of the lock cylinder 2 has a tapered end edge designed to avoid interference when the lock cylinder 2 rotates and affects the smoothness of the lock cylinder 2 rotation, while The end edge of the locking bead 5 where the central axis intersects with the central axis of the lock core 2 maintains a rounded shape.

As far as the cross-shaped insertion groove 20 is concerned, the lock case 1 and the lock cylinder 2 are respectively perforated with more than two insertion holes 10, 21 in the four orientations of the cross direction, and the elastic component 4, the locking bead 5, and lower lock beads 6 of different lengths are placed in the piercing holes 10, 21; wherein, each orientation of the piercing holes 21 is provided with a long lock bead 6' and more than two lower lock beads 6, and the length of the long lock bead 6' is slightly less than the distance from the center point of the cross-shaped insertion groove 20 to the junction of the lock case 1 and the lock core 2, so that the length of the long lock bead 6' is longer than the other lower lock bead 6, In addition, in order to strengthen its structural strength, the diameter of the long lock bead 6' is also larger than that of other lower lock bead 6. The structure of the circular inserting groove 20 is similar to that of the cross-shaped inserting groove 20, so it will not be described in detail.

According to the aforementioned structure, when the long lock bead 6' is in the locked state, its front end protrudes beyond the center line of the insertion groove 20, thereby blocking the original gap of the insertion groove 20 and making the gap of the insertion groove 20 smaller. It is very narrow, so that the thief (such as a master key) cannot be inserted and moved, and there is no so-called fulcrum that can move the long lock bead 6' by the principle of leverage, so the locking effect is good and the security is high.

And even if the stealing tool is improved enough to be inserted into the insertion groove 20 of the lock cylinder 2 to support the long lock bead 6' towards the lock case 1, the end of the long lock bead 6' will pass through the insertion hole of the lock cylinder 2. 21, through the junction of the lock case 1 and the lock cylinder 2, and move to the penetration hole 10 of the lock case 1, causing the lock core 2 to be unable to rotate relative to the lock case 1 and thus unable to complete the unlocking action. At the same time, the operator Also can't continue to try the length of other lower lock beads 6 toward deeper depths, so the utility model can still maintain its anti-theft effect.

The only unlocking method is to use the key 3 that matches the lock cylinder 2, and the key 3 needs to open a deep hole 30 at the position corresponding to the long lock bead 6', so that the long lock bead 6' can be locked in other locks. When the end of the bead 6 has been flipped to the junction of the lock case 1 and the lock cylinder 2, use the elastic component 4 to push it toward the insertion groove 20, so that the front end of the long lock bead 6' falls into the deep hole 30, the end of the long lock bead 6' can be moved to the junction of the lock shell 1 and the lock core 2, so that the lock core 2 can rotate relative to the lock shell 1 to complete the unlocking action. Among them, in order to avoid the defect of structural strength caused by digging four deep holes 30 on the same section, the cross-shaped key 3 needs to set its deep holes 30 on positions of different sections; therefore, the corresponding cross-shaped key 3 Inside the lock core 2 of the groove 20, in the four orientation holes 21 in the cross direction, each orientation is provided with a long lock bead 6' and more than two lower lock beads 6, and the long lock bead 6 'The location of the configuration can only be the same in pairs at most. The internal structures of the circular key 3 and the lock cylinder 2 are also the same.

In addition, by adding a circle of notches 50 to different parts of each upper lock bead 5, those who try to unlock by force with a tool will easily mistake the notch 50 for the end edge of the lower lock bead 6, and it is difficult to Try to find out the actual length of each lower lock bead 6, if adding notches 60 are set on the surface of the lower lock bead 6 and the long lock bead 6', the upper lock bead 5 and the lower lock bead 6 or the long lock bead 6' can be connected It is more difficult to accurately test out the end edge; therefore the utility model can achieve the effect of definite anti-theft.

See Figure 5.

It can be seen from the figure that the first embodiment of the present utility model can also be applied in the lock cylinder 2 where the key 3 needs to be inserted in one direction, and the lower lock bead 6 closest to the opening of the insertion groove 20 is also made into a longer one with a larger length. Lock bead 6' to increase its anti-theft effect; but because there is a gap below the insertion groove 20 of this type of lock core 2 and can be inserted by a thief, so in the lock core 2, add and lower lock bead 6 shafts Orthogonal and protruding to the long lock bead 6' of the space below the insertion groove 20, thereby filling the space below the insertion groove 20, making the gap of the insertion groove 20 very narrow, and allowing the thief Can't insert activity, thereby improve the anti-theft effect of this type of lock cylinder 2.

Or in the lock cylinder 2, add a long lock bead 6' parallel to the axial direction of the lower lock bead 6 and protrude to the space below the insertion groove 20, which can also make the gap of the insertion groove 20 very narrow , and improve the anti-theft effect of this type of lock cylinder 2.

See Figures 6 through 8.

It can be seen from the figure that the anti-theft lock cylinder device described in the second embodiment of the present invention mainly includes a lock case 1 , a lock cylinder 2 , and more than two hollow lock strips 7 . The lock core 2 is coaxially arranged in the lock case 1, and an insertion groove 20 is opened inside it for the insertion of the key 3 (not shown in the figure), and more than two insertion grooves 22 are arranged on the surface, the lock case 1 is provided with a groove 11 corresponding to the penetration groove 22, and the lock strip 7 is arranged in the penetration groove 22, wherein the action principle of the lock strip type lock cylinder belongs to the known technology, so it will not be described in detail.

As far as the locking strips 7 with protrusions 70 are provided in the hollow inside, each locking strip 7 is provided with elastic components 4 and protrusions 70 of different heights, and in order to achieve the effect of strengthening anti-theft, the closest insertion The convex part 70 of the locking strip 7 opened by the groove 20 is heightened so that its height is greater than the height of the convex part 70 of the other locking strip 7 to form a high protrusion 70', so that the high protrusion 70' has the same height as that in the first embodiment. The same effect of the long lock bead 6' can only be achieved by opening the key 3 with a deep hole 30 (not shown) at the position corresponding to the high protrusion 70', after the key 3 is inserted into the insertion groove 20, all The end edges of the lock strips 7 are all tangent to the inner edge of the lock case 1, and then the key 3 is turned to drive the lock core 2 to rotate relative to the lock case 1 to complete the unlocking action.

In addition, the second embodiment of the present utility model can also set the protrusions 70 of the first and second locking strips 7 in the form of facing up, down, left, and right from the opening of the insertion groove 20, and increase their height to form a high Protrusion 70'; as shown in Figure 7, the high protrusion 70' of the first locking strip 7 is arranged on the right side of the side opposite to the elastic component 4, and the high protrusion 70 of the second locking strip 7 'is arranged on the left side of the side adjacent to the elastic component 4, so that the gap of the insertion groove 20 becomes very narrow, so that the thief cannot be inserted and moved, so as to improve the anti-theft effect of this type of lock cylinder 2.

Even as shown in Figure 8, in combination with the first and second embodiments of the present utility model, at the opening of the lock housing 1 and the lock cylinder 2 close to the insertion groove 20, the insertion groove 20 is inserted in an orthogonal form. Holes 10, 21 are used to place the elastic component 4, the locking bead 5, and the long locking bead 6', so that the long locking bead 6' narrows the gap at the opening of the insertion groove 20, and cooperates with the rear locking strip 7 The high projection 70' of the lock cylinder prevents the burglary from being inserted and further improves the anti-theft effect of the lock cylinder 2.

See Figure 9.

As far as the locking bar 7 is not provided with a convex portion 70 (please refer to FIG. 6 ) in the hollow inside, each locking bar 7 is provided with an insertion hole 71, and the side outer edge of the locking bar 7 is further provided with a pressing portion 72 , the elastic component 4 is disposed on one side of the pressing portion 72 . In order to achieve the enhanced anti-theft effect, the jacks 71 of the first and second locking strips 7 are respectively set to be offset at the opposite end edges from the opening of the insertion slot 20 (for example: the second from the opening of the insertion slot 20) The jack 71 of one lock bar 7 is biased to the top of the lock bar 7; the jack 71 of the second lock bar 7 is biased to the bottom of the lock bar 7), and its pressing parts 72 are respectively arranged at opposite ends of the same side , make one end of the insertion hole 71 and the edge of the corresponding locking strip 7 maintain a larger shape and the same as the long locking bead 6' (please refer to the first figure) in the first embodiment, so that the gap between the insertion groove 20 becomes It is very narrow so that the stolen tool cannot be inserted into the activity, so as to improve the anti-theft effect of this type of lock cylinder 2 .

Similarly, the lock cylinder of this kind of lock strip 7 can also be combined with the first embodiment of the present utility model, as shown in Figure 8, in the lock case 1 and the lock cylinder 2 close to the opening of the insertion groove 20, a through hole is added. The holes 10, 21 are used to place the elastic component 4, the lock bead 5, and the long lock bead 6', so that the thief cannot be inserted and move, and further improve the anti-theft effect of the lock cylinder 2.

Please refer to Figure 10 and Figure 11.

It can be seen from the figure that the third embodiment of the present invention is applied in a plum blossom lock 8 and mainly includes a lock case 80 , a front lock cylinder 81 and a rear lock cylinder 82 . The front lock cylinder 81 is provided with an insertion portion 810 adjacent to the front end. The insertion portion 810 is provided with more than two penetration holes 811. The front end of the insertion portion 810 is protruded with more than two holes arranged in a ring shape. The positioning piece 812, the outer edge of the positioning piece 812 is designed in an arc (as shown in the enlarged circle of Figure 10); the rear lock core 82 is coaxially sleeved in the front lock core 81 and is located at the rear end of the insertion part 810, Two or more corresponding insertion holes 820 are provided on the surface of the rear lock cylinder 82 that is in contact with the insertion portion 810 to cooperate with the insertion hole 811 of the insertion portion 810 . The insertion hole 820 is mainly provided with the elastic component 4 and the upper locking bead 5 , and the insertion hole 811 is mainly provided with the lower locking bead 6 . Wherein, the action principle of the plum blossom lock 8 belongs to the known technology, so it will not be described in detail.

Wherein, the lock housing 80 is adjacent to the front end and is provided with more than one piercing hole 800, the piercing hole 800 is provided with the elastic component 4, the locking bead 5 and the long locking bead 6', and the end of the locking bead 5 It is in the shape of a cone angle, and the 6' end of the long lock bead is in the shape of a rounded angle.

Therefore, the utility model can add a long lock bead 6' adjacent to the front end of the lock case 80, so that the long lock bead 6' can form the front lock cylinder 81 and the front end of the lock case 80 for the key 3 to insert Once a foreign object is inserted, the top of the long lock bead 6' will be pushed into the lock housing 80, so that the front lock cylinder 81 cannot be relatively rotated and unlocked, thus effectively improving its anti-theft effect.

The only unlocking method is to use the key 3 that matches the front lock cylinder 81, and the key 3 needs to open a groove 31 at the position corresponding to the long lock bead 6'. After the key 3 is fully inserted, the locked The long lock bead 6' pushed upwards into the lock housing 80 can be pushed back into the groove 31, allowing the top of the long lock bead 6' to return to the inner edge of the lock housing 80, so that the key 3 can drive the front lock cylinder 81 to rotate And complete the unlock. Wherein, when the front lock cylinder 81 rotates, the upper lock bead 5 can be designed with a cone angle shape at its end and cooperate with the arc-shaped design of the outer edge of the positioning piece 812, and contribute to the smoothness of the long lock bead 6' when rotating .

Accordingly, it can be seen that by the above preferred embodiment:

1. In this utility model, the lower lock bead closest to the opening of the insertion slot in the bead lock cylinder is set as a long lock bead with a length longer than other lower lock beads, so that the gap between the insertion slots becomes very narrow. And let the stealing tool cannot be inserted, and even if it is inserted forcibly, the long lock bead will be pushed into the lock case, and the lock cylinder cannot rotate relative to the lock case. The length of the bead;

2. Or set the convex part of the lock strip closest to the opening of the insertion slot in the lock strip type lock core to a shape whose height is greater than the height of the convex parts of other lock strips, which will be able to achieve the same anti-theft effect as the aforementioned long lock beads ;

3. Even combining the features of the aforementioned two anti-theft lock cylinder devices, a through hole is added near the opening of the insertion groove on the lock case and the lock cylinder, so that the long lock bead can be inserted into the opening of the insertion groove. The gap between the slots becomes narrow, and combined with the high protrusions of the rear lock plate, the thief cannot be inserted and moved, further improving the anti-theft effect of the lock cylinder;

4. The utility model adds a notch on the surface of the upper lock bead, so that those who try to unlock it with a tool can easily mistake the said notch as the end edge of the lower bead, and it is difficult to try out the actual position of each lower bead. In addition, it can also set notches on the surface of the lower lock bead and the long lock bead, so that it is more difficult to accurately test the edge of the upper lock bead and the lower lock bead or the long lock bead, so as to achieve the effect of strengthening the anti-theft effect ;

5. In this utility model, the end edge of the locking bead whose central axis does not intersect with the central axis of the lock cylinder is changed from a rounded shape to a cone angle shape, so as to avoid the problem of interference when the lock cylinder rotates, and maintain the lock. The effect of core rotation smoothness;

6. The utility model can be applied to various U-shaped locks, padlocks, door locks and other locks, so it has wide applicability and high practicability.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model.

Claims (10)

1. anti-theft lock device, it consists predominantly of lock housing and lock core, described lock pin coaxial is arranged in the lock housing, lock core inside offers insertion slot, be equipped with the plural hole that places on described lock housing and the described lock core, and each place all be provided with elastic parts in the hole, the following lock pearl of lock pearl and different length; It is characterized in that the length of the following lock pearl of the most close insertion slot opening is locked pearl down greater than other.

2. anti-theft lock device as claimed in claim 1 is characterized in that, the cross section of described insertion slot is in-line, cross or circle.

3. anti-theft lock device as claimed in claim 1 is characterized in that, the described pearl end of locking is the cone angle form.

4. anti-theft lock device, it consists predominantly of lock housing, lock core and the screening of plural hollow form lock, described lock pin coaxial is arranged in the lock housing, lock core inside offers insertion slot, plug face then runs through and is provided with the plural groove that places, offer the corresponding described groove that places groove on the described lock housing, described lock screening is arranged on described placing in the groove, and all is provided with the protuberance of elastic parts and differing heights in each lock screening; It is characterized in that the protuberance height of the lock screening of the most close described insertion slot opening is greater than the protuberance height of other lock screening.

5. anti-theft lock device as claimed in claim 4 is characterized in that, the protuberance of adjacent lock screening is arranged to relative up and down form.

6. anti-theft lock device as claimed in claim 4 is characterized in that, adds near the insertion slot opening part at described lock housing and described lock core and places the hole, described place be provided with elastic parts in the hole, lock pearl and long lock pearl.

7. anti-theft lock device, it consists predominantly of lock housing, lock core and the screening of plural hollow form lock, described lock pin coaxial is arranged in the lock housing, lock core inside offers insertion slot, plug face then runs through and is provided with the plural groove that places, offer the corresponding described groove that places groove on the described lock housing, described lock screening is arranged on described placing in the groove, and offer jack in the described lock screening, the side outer rim of described lock screening more is provided with the press section, and below, described press section is provided with elastic parts; It is characterized in that the jack of adjacent lock screening is arranged to be located at partially the backward end limit respectively, and its press section is arranged to be positioned at opposite end with the limit respectively.

8. anti-theft lock device as claimed in claim 7 is characterized in that, adds near the insertion slot opening part at described lock housing and described lock core and places the hole, described place be provided with elastic parts in the hole, lock pearl and long lock pearl.

9. anti-theft lock device, it consists predominantly of lock housing, preceding lock core and rear lock core, lock pin coaxial is arranged in the described lock housing before described, described before lock core be provided with inserting part adjacent to the front end place, described rear lock core is coaxial be set in described before in the lock core and be positioned at described inserting part rear end; It is characterized in that, offer the more than one hole that places on the described lock housing, described place be provided with elastic parts in the hole, lock pearl and long lock pearl.

10. anti-theft lock device as claimed in claim 9 is characterized in that, the described pearl end of locking is the cone angle form.

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