CN214943231U

CN214943231U - Pick-proof lock core

Info

Publication number: CN214943231U
Application number: CN202120016645.XU
Authority: CN
Inventors: 冯宝仪
Original assignee: Jiangmen Digao Hardware Co ltd
Current assignee: Jiangmen Digao Hardware Co ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-11-30
Anticipated expiration: 2031-01-06

Abstract

The utility model discloses a pick-proof type lock core, including the lock sleeve, the inner wall fixedly connected with fixed block of lock sleeve, the interior diapire sliding connection of fixed block has spacing slider, spacing slider's bottom fixedly connected with locking piece, the spring is moved to one side fixedly connected with pressure of locking piece, and presses spring and lock sleeve fixed connection, the bottom fixedly connected with ejector pin of locking piece, one side of locking piece is provided with the recess, one side fixedly connected with spacing frame of fixed block, spacing outer fixed surface is connected with reset spring, reset spring's top fixedly connected with rack, and rack and spacing frame sliding connection. The utility model discloses in, be provided with: when the lock block, the groove, the ejector rod, the return spring, the gear, the locking spring and the clamping block are used, the return spring and the clamping block are hidden in the lock sleeve and the fixing block, and a lock picking tool is difficult to enter and damage the lock picking tool, so that lock picking can not be basically realized.

Description

Pick-proof lock core

Technical Field

The utility model relates to a life at home field especially relates to a pick-proof type lock core.

Background

A key corresponds to a lock, and the lock becomes an important tool for people to store personal articles and prevent burglary in the current society. When the key is inserted, a series of notches on the key can push the pin pairs upwards to different degrees, if the key is not aligned, most upper pins in the lock still transversely penetrate through the inner lock cylinder and the outer lock cylinder, so that the inner lock cylinder cannot rotate; the correct key will push each pin pair up to a position where the upper and lower pin connection points just coincide with the connection of the inner and outer cylinders (this position is referred to as the shear line). In other words, the key top pins allow all the top pins to be completely in the outer cylinder while all the bottom pins stay completely in the inner cylinder, and at this time, no pins hold the inner and outer cylinders together, and the inner cylinder can rotate freely.

Some lawbreakers have mastered the structure principle of the lock and found out a set of lock picking methods. Although the lock picking tools are various, the common feature is that the tools are inserted into the lock hole and operated by using tools such as a crowbar and a torque wrench to unlock the lock. Mechanical locks are of a wide variety but the basic principle is similar.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a pick-proof lock core.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a pick-proof lock core comprises a lock sleeve, wherein a fixed block is fixedly connected to the inner wall of the lock sleeve, a limiting slide block is slidably connected to the inner bottom wall of the fixed block, a lock block is fixedly connected to the bottom end of the limiting slide block, a pressing spring is fixedly connected to one side of the lock block, the pressing spring is fixedly connected with the lock sleeve, a push rod is fixedly connected to the bottom end of the lock block, a groove is formed in one side of the lock block, a limiting frame is fixedly connected to one side of the fixed block, a reset spring is fixedly connected to the outer surface of the limiting frame, a rack is fixedly connected to the top end of the reset spring, the rack is slidably connected with the limiting frame, a swing wheel is rotatably connected to the inner wall of the lock sleeve, a sliding block is slidably connected to the inner wall of the fixed block, a clamping block is fixedly connected to one side of the sliding block, and a locking spring is fixedly connected to the inner wall of the lock sleeve, close to the bottom end, one end of the locking spring is fixedly connected with a clamping block, the clamping block is connected with the lock sleeve in a sliding mode, and the inner wall of the lock sleeve is connected with a gear in a rotating mode.

As a further description of the above technical solution:

the inner wall of the lock sleeve is fixedly connected with an elastic telescopic rod.

As a further description of the above technical solution:

the lock sleeve is provided with a matched key, and the convex part of the key is matched with the groove.

As a further description of the above technical solution:

and one side of the oscillating wheel is provided with teeth meshed with the rack, and the other side of the oscillating wheel is provided with teeth meshed with the clamping block.

As a further description of the above technical solution:

the bottom end of the clamping block is fixedly connected with a bulge matched with a tooth groove of the gear.

As a further description of the above technical solution:

the top of chucking piece is close to the edge and is provided with the tooth with gear engagement.

The utility model discloses following beneficial effect has: an anti-prying lock cylinder is provided with: the locking piece is pushed to a proper position through the key, the clamping piece can be automatically recovered without twisting the key when the key is used for opening the door through the cooperation of the rack, the gear and the locking spring, and the door can be opened conveniently and simply without too large strength.

Simultaneously when picking the lock, a plurality of fixture blocks that set up withstand the tooth's socket, and the gear can not rotate, and the chucking piece just can not be accomplished and retrieve to, hiding fixture block rebound's reset spring inside lock sleeve and fixed block, picking the lock instrument and hardly getting into and destroying it, therefore picking the lock and can not realizing basically, set up a plurality of recesses and the lock piece of different shapes simultaneously and make the technique degree of difficulty of unblanking increase, increaseed the theftproof effect of lock core.

Drawings

Fig. 1 is a front cross-sectional view of a prying-resistant lock cylinder provided by the present invention;

fig. 2 is a top cross-sectional view of the anti-prying lock cylinder provided by the present invention;

fig. 3 is a use diagram of a locking structure of a pick-proof lock cylinder provided by the utility model;

fig. 4 is a key schematic diagram of the anti-picking lock cylinder provided by the utility model.

Illustration of the drawings:

1. a lock sleeve; 2. a fixed block; 3. a limiting slide block; 4. pressing the spring; 5. a locking block; 6. a groove; 7. a top rod; 8. a limiting frame; 9. a rack; 10. a return spring; 11. a swinging wheel; 12. a clamping block; 13. a slider; 14. a locking spring; 15. a clamping block; 16. a gear; 17. a key; 18. an elastic telescopic rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a pick-proof lock core comprises a lock sleeve 1, wherein the inner wall of the lock sleeve 1 is fixedly connected with a fixed block 2, the inner bottom wall of the fixed block 2 is connected with a limiting slide block 3 in a sliding manner, the bottom end of the limiting slide block 3 is fixedly connected with a lock block 5, the technical unlocking difficulty is increased through the different shapes of the lock block 5 and a groove 6, one side of the lock block 5 is fixedly connected with a pressing spring 4, the pressing spring 4 is fixedly connected with the lock sleeve 1, the bottom end of the lock block 5 is fixedly connected with a mandril 7, one side of the lock block 5 is provided with the groove 6, one side of the fixed block 2 is fixedly connected with a limiting frame 8, the outer surface of the limiting frame 8 is fixedly connected with a reset spring 10, after a key 17 is taken away, the reset spring 10 automatically moves a rack 9 upwards to further move a clamping block 12 downwards, the position of a gear 16 is locked, the top end of the reset spring 10 is fixedly connected with a rack 9, and the rack 9 is connected with the limiting frame 8 in a sliding manner, the inner wall of lock tube 1 rotates and is connected with swinging wheel 11, and the inner wall sliding connection of fixed block 2 has sliding block 13, and one side fixedly connected with fixture block 12 of sliding block 13, the inner wall of lock tube 1 is close to bottom department fixedly connected with locking spring 14, and the one end fixedly connected with chucking piece 15 of locking spring 14, and chucking piece 15 and lock tube 1 sliding connection, the inner wall of lock tube 1 rotates and is connected with gear 16.

The inner wall fixed connection of lock sleeve 1 has elasticity telescopic link 18, plays limiting displacement through elasticity telescopic link 18, and it is more laborsaving to make the key 17 cooperate with the recess 6 of locking piece 5 when inserting.

The lock sleeve 1 is provided with a matched key 17, the protruding part of the key 17 is matched with the groove 6, and the protruding part of the arranged key 17 is matched with the groove 6, so that the technical unlocking difficulty is increased.

One side of the swing wheel 11 is provided with teeth engaged with the rack 9, and the other side of the swing wheel 11 is provided with teeth engaged with the latch 12, and the position of the gear 16 is defined by moving the latch 12 through the swing wheel 11.

The bottom end of the clamping block 12 is fixedly connected with a bulge matched with a tooth groove of the gear 16, and the bulge of the clamping block 12 can limit the rotation of the gear 16 so as to prevent the clamping block 15 from moving.

The top of chucking block 15 is provided with the tooth that meshes with gear 16 near the edge, and the degree of difficulty of picking the lock is increaseed through the cooperation of chucking block 15 and gear 16.

The working principle is as follows: when the anti-prying lock cylinder is used, a key 17 is inserted into a lock sleeve 1, a protrusion of the key 17 is matched with a groove 6 to move a lock block 5 to a proper position, a mandril 7 of the lock block 5 moves a rack 9 downwards, the rack 9 rotates a swinging wheel 11 anticlockwise, then the swinging wheel 11 moves a clamping block 12 upwards, the clamping block 12 is separated from a gear 16, a locking spring 14 pulls the clamping block 16 towards the inside of the lock sleeve 1 to unlock the lock, when the lock is prized, the reset spring 10 moves the rack 9 upwards due to the fact that the key 17 is not matched with the groove 6, the rack 9 rotates the swinging wheel 11 clockwise, then the swinging wheel 11 moves the clamping block 12 downwards, the clamping block 12 is meshed with the gear 16, the gear 16 limits the clamping block 15, and the reset spring 10 and the clamping block 12 are both inside a fixing block 2, so that the lock cylinder is difficult to be damaged by a prying tool, and the safety of the lock cylinder is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a pick-proof type lock core, includes lock sleeve (1), its characterized in that: the inner wall of the lock sleeve (1) is fixedly connected with a fixed block (2), the inner bottom wall of the fixed block (2) is connected with a limiting slide block (3) in a sliding manner, the bottom end of the limiting slide block (3) is fixedly connected with a lock block (5), one side of the lock block (5) is fixedly connected with a pressure spring (4), the pressure spring (4) is fixedly connected with the lock sleeve (1), the bottom end of the lock block (5) is fixedly connected with a mandril (7), one side of the lock block (5) is provided with a groove (6), one side of the fixed block (2) is fixedly connected with a limiting frame (8), the outer surface of the limiting frame (8) is fixedly connected with a reset spring (10), the top end of the reset spring (10) is fixedly connected with a rack (9), the rack (9) is connected with the limiting frame (8) in a sliding manner, the inner wall of the lock sleeve (1) is rotatably connected with a swing wheel (11), the inner wall sliding connection of fixed block (2) has sliding block (13), one side fixedly connected with fixture block (12) of sliding block (13), the inner wall of lock sleeve (1) is close to bottom department fixedly connected with locking spring (14), the one end fixedly connected with chucking piece (15) of locking spring (14), and chucking piece (15) and lock sleeve (1) sliding connection, the inner wall of lock sleeve (1) rotates and is connected with gear (16).

2. An anti-picking lock core according to claim 1, characterized in that: the inner wall of the lock sleeve (1) is fixedly connected with an elastic telescopic rod (18).

3. An anti-picking lock core according to claim 1, characterized in that: the lock sleeve (1) is provided with a matched key (17), and the convex part of the key (17) is matched with the groove (6).

4. An anti-picking lock core according to claim 1, characterized in that: one side of the swinging wheel (11) is provided with teeth meshed with the rack (9), and the other side of the swinging wheel (11) is provided with teeth meshed with the clamping block (12).

5. An anti-picking lock core according to claim 4, characterized in that: the bottom end of the clamping block (12) is fixedly connected with a bulge matched with a tooth groove of the gear (16).

6. An anti-picking lock core according to claim 1, characterized in that: the top end of the clamping block (15) is provided with teeth which are meshed with the gear (16) near the edge.