CN219316664U - Mechanical lock cylinder with good safety - Google Patents

Abstract

The utility model belongs to the technical field of mechanical lock cylinders, in particular to a mechanical lock cylinder with good safety, which comprises a lock body, wherein a lock cylinder is arranged in the lock body, a lock hole is formed in the lock cylinder, a key is inserted into the lock hole in a sliding manner, round grooves are formed in the lock body at equal intervals, a first spring is fixedly connected in the round grooves, and a bullet is fixedly connected to the lower end of the first spring. According to the lock cylinder, one end of the clamping block is matched with the supporting rod to rotate so as to withdraw from the inner side of the clamping groove, then a person rotates the lock cylinder, the lock cylinder can rotate on the inner side of the lock body under the drive of the key, the lock cylinder can be opened, and the structures of the supporting block, the supporting rod, the clamping block, the second spring, the placing groove, the third spring, the disc, the clamping ring, the clamping rod, the clamping groove, the auxiliary groove and the pulling piece are added on the basis of the bullet lock cylinder, so that the opening difficulty of the lock cylinder is increased, and the difficulty of illegal persons in opening the lock cylinder is greatly improved.

Description

Mechanical lock cylinder with good safety

Technical Field

The utility model relates to the technical field of mechanical lock cylinders, in particular to a mechanical lock cylinder with good safety.

Background

The prior various mechanical lock cylinders have changeable shapes, but the common spring lock cylinder has simple structure and high market use ratio, mainly comprises a lock shell, a lock cylinder body, a key and other parts, and is assisted by springs with different lengths and spring springs to jointly form the locking and unlocking functions of the lock cylinder. When the lock is in a locking state, the lower marble in the marble hole is lower than the surface of the lock cylinder body under the action of the elasticity of the marble spring, one half of the upper marble enters the lock shell, and the other half of the upper marble is left in the lock cylinder body, so that the lock cylinder body cannot rotate. After the key is inserted, the key teeth with different heights on the key overcome the elasticity of the spring and then squeeze the lower spring, so that the lower spring moves upwards at different heights, the tail parts of all the lower springs are leveled with the surface of the lock cylinder body, all the upper springs are discharged out of the lock cylinder body, the lock cylinder body can be freely rotated on the inner side of the lock body under the drive of the key, and the lock cylinder can be opened. When the lock core is just pushed out of the market, as the marbles are distributed along the circumference and are more distributed, no special theft-opening tool exists at one time by lawless persons, and the anti-theft performance is good; however, after years of use, special theft-opening tools for such lock cylinders appear on the market, and the theft-proof performance is also continuously reduced with the passage of time.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the mechanical lock cylinder with good safety, and solves the problem that the antitheft performance of the spring lock cylinder proposed in the background art is also continuously reduced along with the time.

(II) technical scheme

The utility model adopts the following technical scheme for realizing the purposes:

the utility model provides a mechanical lock core that security is good, includes the lock body, the inside of the lock body is provided with the lock core, the button hole has been seted up to the inside of lock core, the inside slip grafting of button hole has the key, the circular slot has been seted up to the inside equidistance of the lock body, the inside fixedly connected with spring of circular slot, the lower extreme fixedly connected with of spring is gone up the marble, the round hole has been seted up to the inside equidistance of lock core, the inside sliding contact of round hole has the marble down, the mating groove has been seted up to the upper surface of key, square groove has been seted up on the surface of lock core, the inner wall fixedly connected with supporting shoe of square groove, the inside fixedly connected with bracing piece of square groove, rotate on the bracing piece and be connected with the fixture block, one side fixedly connected with spring of supporting shoe, the standing groove has been seted up to the terminal surface of key, the inside fixedly connected with spring of standing groove, the one end fixedly connected with disc of spring of No. three, the center department fixedly connected with card lever of disc, the inside of the lock body has seted up the draw-in groove, one end of the setting up the lock core.

Further, an auxiliary groove is formed in the lock cylinder, and one end of the clamping block is abutted against the inner wall of the clamping groove.

Further, the lower surface of the lower marble is abutted against the inner side of the matching groove.

Further, a clamping ring is fixedly connected inside the placing groove, and the disc is in contact with the inner side of the clamping ring.

Further, one end of the clamping rod is abutted against the surface of the clamping block.

(III) beneficial effects

Compared with the prior art, the utility model provides the mechanical lock cylinder with good safety, which has the following beneficial effects:

according to the lock cylinder, one end of the clamping block is matched with the supporting rod to rotate so as to withdraw from the inner side of the clamping groove, then a person rotates the lock cylinder, the lock cylinder can rotate on the inner side of the lock body under the drive of the key, the lock cylinder can be opened, and the structures of the supporting block, the supporting rod, the clamping block, the second spring, the placing groove, the third spring, the disc, the clamping ring, the clamping rod, the clamping groove, the auxiliary groove and the pulling piece are added on the basis of the bullet lock cylinder, so that the opening difficulty of the lock cylinder is increased, and the difficulty of illegal persons in opening the lock cylinder is greatly improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of a part of the structure of the present utility model;

FIG. 3 is a schematic diagram of a lock cylinder structure of the present utility model;

FIG. 4 is a schematic view of a mating groove structure of the present utility model;

FIG. 5 is an enlarged schematic view of the structure of the present utility model at A;

FIG. 6 is an enlarged schematic view of the structure of the present utility model at B;

FIG. 7 is an enlarged schematic view of the structure of the present utility model at C.

In the figure: 1. a lock body; 2. a lock core; 3. a keyhole; 4. a key; 5. a circular groove; 6. a first spring; 7. loading a marble; 8. a round hole; 9. a lower marble; 10. a mating groove; 11. a square groove; 12. a support block; 13. a support rod; 14. a clamping block; 15. a second spring; 16. a placement groove; 17. a third spring; 18. a disc; 19. a clasp; 20. a clamping rod; 21. a clamping groove; 22. an auxiliary groove; 23. a pulling piece.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1-7, the mechanical lock core with good safety provided by one embodiment of the utility model comprises a lock body 1, wherein a lock core 2 is arranged in the lock body 1, a buttonhole 3 is arranged in the lock core 2, a key 4 is slidingly inserted in the buttonhole 3, round grooves 5 are formed in the lock body 1 at equal intervals, a first spring 6 is fixedly connected in the round grooves 5, an upper marble 7 is fixedly connected to the lower end of the first spring 6, round holes 8 are formed in the lock core 2 at equal intervals, a lower marble 9 is slidingly contacted in the round holes 8, a matching groove 10 is formed in the upper surface of the key 4, a square groove 11 is formed in the surface of the lock core 2, a supporting block 12 is fixedly connected to the inner wall of the square groove 11, a supporting rod 13 is fixedly connected to the inner side of the supporting block 14 in a rotating manner, a second spring 15 is fixedly connected to one side of the supporting block 12, a placing groove 16 is formed in the end face of the key 4, the inside of the holding groove 16 is fixedly connected with a third spring 17, one end of the third spring 17 is fixedly connected with a disc 18, the center of the disc 18 is fixedly connected with a clamping rod 20, the inside of the lock body 1 is provided with a clamping groove 21, one end of the lock cylinder 2 is provided with a poking piece 23, when unlocking, a person inserts the key 4 into the inside of the lock hole 3, enables the lower marble 9 to be matched with the matching groove 10 to move upwards at different heights, enables the tail parts of all the lower marble 9 to be level with the surface of the lock cylinder 2, and discharges all the upper marble 7 into the inside of the round hole 8, simultaneously, in the process of inserting the key 4 into the inside of the lock hole 3, the clamping rod 20 can collide with the edge opening of the lock hole 3 to retract into the inside of the holding groove 16 together with the disc 18, and after the key 4 is completely inserted into the inside of the lock hole 3, the clamping rod 20 can reach the position of the auxiliary groove 22, after the front end of the clamping rod 20 loses collision, the clamping rod 20 can cooperate the restoring force that No. three spring 17 produced, promote clamping rod 20 and contradict the surface of fixture block 14, make fixture block 14 one end cooperation bracing piece 13 produce and rotate and then withdraw from the inboard of draw-in groove 21, again by personnel rotate lock core 2, lock core 2 is rotatable in the inboard of lock body 1 under the drive of key 4, the lock core alright be opened, through increasing supporting shoe 12 on the basis of bullet lock core, bracing piece 13, fixture block 14, no. two spring 15, standing groove 16, no. three spring 17, disc 18, snap ring 19, clamping rod 20, draw-in groove 21, auxiliary groove 22 and these structures of plectrum 23, the degree of difficulty of opening of this lock core has been increased, the degree of difficulty of illegal personnel's stealing and opening this lock core has been improved greatly.

As shown in fig. 5, in some embodiments, the lock cylinder 2 is internally provided with an auxiliary groove 22, when the lock cylinder 4 is inserted into the lock cylinder 3, the front end of the clamping rod 20 is excessively pushed against the surface of the clamping block 14 through the auxiliary groove 22, so that the front end of the clamping rod 20 is pushed against the inner wall of the clamping groove 21, and the restoring force of the third spring 15 is used for conveniently driving the clamping block 14 to be pushed against the inner wall of the clamping groove 21, thereby increasing the difficulty of opening the lock cylinder.

As shown in fig. 4, in some embodiments, the lower surface of the lower pin 9 abuts against the inner side of the fitting groove 10, and after the key 4 is inserted into the key hole 3, the lower pin 9 is fitted with the lower pin 9 by the height of the inner side of the fitting groove 10 so that the lower pin 9 is leveled with the surface of the key cylinder 2.

As shown in fig. 5, in some embodiments, the retaining ring 19 is fixedly connected to the inside of the placement groove 16, the disc 18 abuts against the inner side of the retaining ring 19, and when the locking rod 20 is pushed outwards by the No. three spring 17, the disc 18 abuts against the inner side of the retaining ring 19 to prevent the locking rod 20 from being separated from the inside of the placement groove 16, so that the structural stability of the lock cylinder is increased.

In some embodiments, one end of the latch 20 abuts against the surface of the latch 14.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model _。

Claims (5)

1. The mechanical lock core that the security is good, including lock body (1), its characterized in that: the inside of lock body (1) is provided with lock core (2), keyhole (3) have been seted up to the inside of lock core (2), the inside slip grafting of keyhole (3) has key (4), circular slot (5) have been seted up to the inside equidistance of lock body (1), the inside fixedly connected with spring (6) of circular slot (5), the lower extreme fixedly connected with spring (7) of spring (6) has gone up, round hole (8) have been seted up to the inside equidistance of lock core (2), the inside sliding contact of round hole (8) has down marble (9), mating groove (10) have been seted up to the upper surface of key (4), square slot (11) have been seted up to the surface of lock core (2), the inner wall fixedly connected with supporting shoe (12) of square slot (11), the inside fixedly connected with bracing piece (13) of square slot (11), the last fixture block (14) that rotates of bracing piece (13), one side fixedly connected with spring (15) of supporting shoe (12), spring (16) have spring (17) have, the inside of setting up spring (16) of setting up groove (17) has, the disc (17) of setting up groove (16), the center of the disc (18) is fixedly connected with a clamping rod (20), a clamping groove (21) is formed in the lock body (1), and a poking piece (23) is arranged at one end of the lock cylinder (2).

2. The mechanically robust lock cylinder of claim 1, wherein: an auxiliary groove (22) is formed in the lock cylinder (2), and one end of the clamping block (14) is abutted against the inner wall of the clamping groove (21).

3. The mechanically robust lock cylinder of claim 1, wherein: the lower surface of the lower marble (9) is abutted against the inner side of the matching groove (10).

4. The mechanically robust lock cylinder of claim 1, wherein: the inside of standing groove (16) still fixedly connected with snap ring (19), disc (18) are inconsistent with the inboard of snap ring (19).

5. The mechanically robust lock cylinder of claim 1, wherein: one end of the clamping rod (20) is abutted against the surface of the clamping block (14).

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