CN215565091U - Anti-theft lock core - Google Patents

Abstract

The utility model discloses an anti-theft lock cylinder which comprises a first lock shell, wherein the top of the first lock shell is fixedly connected with a second lock shell, cavities are formed in the first lock shell and the second lock shell, a lock shaft is movably connected in the first lock shell, a through groove is formed in the lock shaft close to the middle, five springs are fixedly connected in sequence from front to back at the top in the second lock shell, an upper elastic column is fixedly connected to the bottom of each spring, and a lower elastic column is arranged at the bottom of each upper elastic column. This theftproof lock core through the design of latch, tooth's socket, cotter way, theftproof piece and theftproof groove, has changed the design of traditional theftproof lock core for this device has good theftproof performance, and the probability that the reduction that can be very big was opened by universal key not only makes the security performance of this device obtain very big enhancement, more can reduce the loss for the user, has improved the practicality of this device, has satisfied user's user demand.

Description

Anti-theft lock core

Technical Field

The utility model relates to the technical field of door locks, in particular to an anti-theft lock cylinder.

Background

Door locks are devices used, as the name implies, to lock a door to prevent others from opening the door. The door locks are classified into a plurality of categories, the requirements on the door locks are different in each occasion, and the anti-theft door lock is generally used in ordinary families, and is high in safety and low in price. The door lock is widely applied and can be seen by everyone every day.

People often use the anti-theft lock in life. However, the anti-theft capability of the lock cylinder of the existing anti-theft lock is poor, and a common thief can easily open the door lock after using a master key, so that property loss is brought to a user, and the use requirement of the user cannot be met. Therefore, the anti-theft lock cylinder is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-theft lock core, which aims to solve the problems that the anti-theft capacity of the lock core of the existing anti-theft lock is poor, a common thief can easily open a door lock after using a master key, property loss is brought to a user, and the use requirement of the user cannot be met.

In order to achieve the purpose, the utility model provides the following technical scheme: the anti-theft lock core comprises a first lock shell, wherein a second lock shell is fixedly connected to the top of the first lock shell, cavities are formed in the first lock shell and the second lock shell, a lock shaft is movably connected to the inside of the first lock shell, a through groove is formed in the lock shaft at the position close to the middle, five springs are fixedly connected to the top of the second lock shell from front to back in sequence, an upper spring post is fixedly connected to the bottom of each spring, a lower spring post is arranged at the bottom of each upper spring post, the top of each lower spring post is in contact with the corresponding upper spring post, the inner wall of the through groove is in contact with the corresponding lower spring post, a pin groove is formed in the first lock shell at the position close to the bottom, a movable groove is formed in the lock shaft at the position close to one side, a door lock key is arranged on the front surface of the first lock shell, the rear end of the door lock key extends into the through groove and is in contact with the inner wall of the through groove, and the bottom of the lower spring post penetrates through groove and extends into the through groove, the front and rear surfaces of the movable groove are provided with sliding grooves, the inside of the movable groove is provided with clamping teeth, the position of the bottom of the door lock key close to the front end is provided with a tooth groove, the inner wall of the movable groove is in contact with the clamping teeth, sliding blocks are fixedly connected to the front surface and the rear surface of the clamping teeth, an anti-theft block is fixedly connected to the bottom in the tooth groove, the top of the clamping teeth is provided with an anti-theft groove, and the bottom of the clamping teeth extends to the outside of the movable groove.

Preferably, the movable groove and the pin groove are designed in an up-and-down intercommunication mode, and the movable groove and the pin groove, the lock shaft and the first lock shell are designed in an integrated mode.

Preferably, the bottom of the upper spring column penetrates through the first lock shell and extends into the first lock shell, and the inner wall of the through groove is in contact with the upper spring column.

Preferably, one side of each of the two sliding blocks, which is opposite to the other side, extends into the two sliding grooves respectively and contacts with the inner walls of the sliding grooves, and the sliding blocks are connected with the sliding grooves in a sliding manner.

Preferably, the bottom of the sliding block is fixedly connected with a micro-force spring, and the bottom of the micro-force spring is fixedly connected with the inner wall of the sliding groove.

Preferably, the bottom of the anti-theft block extends to the inside of the anti-theft groove, and the bottom of the lower elastic column is in contact with a door lock key.

Compared with the prior art, the utility model has the beneficial effects that: this theftproof lock core through the design of latch, tooth's socket, cotter way, theftproof piece and theftproof groove, has changed the design of traditional theftproof lock core for this device has good theftproof performance, and the probability that the reduction that can be very big was opened by universal key not only makes the security performance of this device obtain very big enhancement, more can reduce the loss for the user, has improved the practicality of this device, has satisfied user's user demand.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side sectional view of the structure of the present invention;

FIG. 3 is an enlarged view of part A of FIG. 2;

FIG. 4 is a schematic view of the anti-theft block of the present invention;

fig. 5 is a schematic view of the anti-theft slot of the present invention.

In the figure: 1. a first lock case; 2. a second lock case; 3. a lock shaft; 4. a spring; 5. mounting a spring column; 6. a bullet column is arranged; 7. a through groove; 8. a pin slot; 9. a door lock key; 10. a chute; 11. clamping teeth; 12. a tooth socket; 13. a slider; 14. an anti-theft block; 15. an anti-theft slot; 16. a micro-force spring; 17. a movable groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution of an anti-theft lock cylinder: an anti-theft lock core comprises a first lock shell 1, wherein a second lock shell 2 is fixedly connected to the top of the first lock shell 1, cavities are formed in the first lock shell 1 and the second lock shell 2, a lock shaft 3 is movably connected to the inside of the first lock shell 1, a through groove 7 is formed in the lock shaft 3 close to the middle position, five springs 4 are fixedly connected to the top of the second lock shell 2 from front to back in sequence, an upper spring column 5 is fixedly connected to the bottom of each spring 4, a lower spring column 6 is arranged at the bottom of each upper spring column 5, the top of each lower spring column 6 is in contact with the corresponding upper spring column 5, the inner wall of the through groove 7 is in contact with the corresponding lower spring column 6, a pin groove 8 is formed in the position close to the front end of the bottom of the first lock shell 1, a movable groove 17 is formed in the position close to one side of the lock shaft 3, a door lock key 9 is arranged on the front surface of the first lock shell 1, the rear end of the door lock key 9 extends to the inside of the through groove 7 and is in contact with the inner wall of the through groove 7, the bottom of bullet post 6 runs through lock shaft 3 down and extends to the inside that leads to groove 7, spout 10 has all been seted up on the front and back surface in activity groove 17, the inside in activity groove 17 is provided with latch 11, the tooth's socket 12 has been seted up to the front position that leans on of lock key 9 bottom, the inner wall and the 11 contacts of latch in activity groove 17, the equal fixedly connected with slider 13 in surface around latch 11, bottom fixedly connected with theftproof piece 14 in the tooth's socket 12, theftproof groove 15 has been seted up at latch 11's top, latch 11's bottom extends to the outside in activity groove 17.

In the utility model: the movable groove 17 and the pin groove 8 are designed in an up-and-down mutual-communicating mode, and the movable groove 17 and the pin groove 8 as well as the lock shaft and the first lock shell 1 are designed in an integrated mode; through the setting of cotter way 8, can be used for carrying out the joint with latch 11 to play the theftproof effect.

In the utility model: the bottom of the upper elastic column 5 penetrates through the first lock shell 1 and extends into the first lock shell, and the inner wall of the through groove 7 is in contact with the upper elastic column 5; through the setting of logical groove 7, be convenient for lock key 9 business turn over.

In the utility model: one side of each of the two sliding blocks 13, which is opposite to the other side, extends into the two sliding grooves 10 respectively and is in contact with the inner walls of the sliding grooves 10, and the sliding blocks 13 are in sliding connection with the sliding grooves 10; through the arrangement of the sliding block 13 and the sliding groove 10, the latch 11 can move.

In the utility model: the bottom of the sliding block 13 is fixedly connected with a micro-force spring 16, and the bottom of the micro-force spring 16 is fixedly connected with the inner wall of the sliding chute 10; through the setting of micro-force spring 16, can drive slider 13 and slide downwards.

In the utility model: the bottom of the anti-theft block 14 extends to the inside of the anti-theft slot 15, and the bottom of the lower elastic column 6 is contacted with the door lock key 9; the anti-theft performance of the device can be enhanced by arranging the anti-theft block 14 and the anti-theft groove 15, and the front end position of the door lock key 9 is made of a magnetic material.

The working principle is as follows: when the device is used, as shown in fig. 1 and 3, a door lock key 9 is directly inserted into a through groove 7, the groove at the top of the door lock key 9 corresponds to lower elastic columns 6 one by one (this is the prior art), when a tooth groove 12 at the bottom of the door lock key 9 moves to a position opposite to a movable groove 17, because the tooth groove 12 on the door lock key 9 is opened at a magnetic position of the door lock key 9, a strong magnetic attraction force is provided at the position (here, a suction force of one pascal can be set to attract a tooth 11), under the action of the magnetic attraction force, the tooth 11 in the movable groove 17 is attracted upwards to the tooth groove 12, after the tooth 11 moves upwards, the bottom of the tooth 11 is removed from a pin groove 8, when the tooth 11 moves upwards to an anti-theft groove 15 on the tooth groove 12, the anti-theft groove 15 is attached to the bottom of an anti-theft block 14 (here, the thickness of the anti-theft block 14 is set to be 0.01MM, the anti-theft groove 15 is arranged corresponding to the anti-theft block 14), therefore, the latch 11 can be completely moved out of the pin groove 8, the limit between the lock cylinder 3 and the first lock shell 1 is removed, the user can open the door lock by rotating the door lock key 9 at the moment, if the sizes of the anti-theft block 14 and the anti-theft groove 15 are not matched, the anti-theft block 14 and the anti-theft groove 15 cannot be completely attached, and thus, even if the latch 11 is upwards sucked by magnetic attraction, a distance is reserved between the latch 11 and the pin groove 8, so that the anti-theft effect is achieved, and meanwhile, when the manufacturer produces, the suction size and the precision of the confidential door lock key 9, the anti-theft block 14 and the anti-theft groove 15 cannot be revealed.

In summary, the following steps: this theftproof lock core, through latch 11, tooth's socket 12, cotter way 8, the design of theftproof piece 14 and theftproof groove 15, the design of traditional theftproof lock core has been changed, make this device have good theftproof performance, the probability that the reduction that can be very big was opened by universal key, not only make the security performance of this device obtain very big enhancement, more can reduce the loss for the user, the practicality of this device has been improved, user's user demand has been satisfied, thereby the lock core theftproof ability of having solved current pickproof lock is relatively poor, general thief can open the lock very easily after using universal key, bring loss on the property for the user, can not satisfy the problem of user demand.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Theftproof lock core, including first lock shell (1), its characterized in that: the lock is characterized in that a second lock shell (2) is fixedly connected to the top of the first lock shell (1), cavities are formed in the first lock shell (1) and the second lock shell (2), a lock shaft (3) is movably connected to the inside of the first lock shell (1), a through groove (7) is formed in the lock shaft (3) in the middle position, five springs (4) are fixedly connected to the top of the second lock shell (2) from the front to the back in sequence, an upper elastic column (5) is fixedly connected to the bottom of each spring (4), a lower elastic column (6) is arranged at the bottom of each upper elastic column (5), the top of each lower elastic column (6) is in contact with the upper elastic column (5), the inner wall of each through groove (7) is in contact with the lower elastic column (6), a pin groove (8) is formed in the position of the front end of the first lock shell (1) in the front position, a movable groove (17) is formed in the lock shaft (3) in the position of one side in the side, a door lock key (9) is arranged on the front surface of the first lock shell (1), the rear end of the door lock key (9) extends into the through groove (7) and is contacted with the inner wall of the through groove (7), the bottom of the lower spring column (6) penetrates through the lock shaft (3) and extends into the through groove (7), sliding grooves (10) are formed in the front surface and the rear surface of the movable groove (17), clamping teeth (11) are arranged inside the movable groove (17), a tooth socket (12) is arranged at the position close to the front end of the bottom of the door lock key (9), the inner wall of the movable groove (17) is contacted with the latch (11), the front surface and the rear surface of the latch (11) are fixedly connected with sliding blocks (13), the bottom fixedly connected with theftproof piece (14) in tooth's socket (12), theftproof groove (15) have been seted up at the top of latch (11), the bottom of latch (11) extends to the outside in activity groove (17).

2. The anti-theft lock cylinder according to claim 1, characterized in that: the movable groove (17) and the pin groove (8) are designed in an up-and-down communicating mode, and the movable groove (17) and the pin groove (8) as well as the lock shaft and the first lock shell (1) are designed in an integrated mode.

3. The anti-theft lock cylinder according to claim 1, characterized in that: the bottom of the upper elastic column (5) penetrates through the first lock shell (1) and extends to the interior of the first lock shell, and the inner wall of the through groove (7) is in contact with the upper elastic column (5).

4. The anti-theft lock cylinder according to claim 1, characterized in that: one side that two sliders (13) carried on the back extends to the inside of two spout (10) respectively and with the inner wall contact of spout (10), sliding connection between slider (13) and spout (10).

5. The anti-theft lock cylinder according to claim 1, characterized in that: the bottom of the sliding block (13) is fixedly connected with a micro-force spring (16), and the bottom of the micro-force spring (16) is fixedly connected with the inner wall of the sliding groove (10).

6. The anti-theft lock cylinder according to claim 1, characterized in that: the bottom of the anti-theft block (14) extends to the inside of the anti-theft groove (15), and the bottom of the lower elastic column (6) is in contact with the door lock key (9).

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