Anti-theft self-locking lock cylinder

Abstract

The utility model relates to the technical field of locks, and discloses an anti-theft self-locking lock cylinder which comprises a lock cylinder body, a mounting groove is formed in one side of the lock cylinder body, a rotor is rotationally connected into the mounting groove, an auxiliary structure is fixedly mounted at one end of the rotor, and the auxiliary structure comprises a mounting block, a containing groove, a first spring, a protection block and an arc-shaped face. Two mounting blocks are fixedly mounted at one end of the rotor, a containing groove is formed in one side of each mounting block, six first springs are fixedly mounted in each containing groove, a protection block is fixedly mounted at one end of each first spring, and an arc-shaped surface is formed in one side of each protection block. Through the arrangement of the auxiliary structure, the situation that dust is brought into the lock cylinder by a key, and the flexibility of the lock cylinder is affected by the dust is avoided, and the practicability is relatively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to an anti-theft self-locking lock core. Background Art

[0002] The lock cylinder is the main part that controls the opening of the lock and is the heart of the lock. It refers to the core part that can rotate with the key and drive the movement of the lock bolt. The main function of the lock cylinder is to transmit torque from the head to drive other parts of the lock to achieve unlocking and locking. There are many types of lock cylinders, including European lock cylinders, American threaded lock cylinders, fireproof lock cylinders, etc.

[0003] The utility model patent application document with publication number "CN213573422U" discloses an anti-theft self-locking lock core, including a lock shell, a lock shell seat is fixedly connected to the bottom of the lock shell, the top of the lock shell seat penetrates the lock shell and extends to the interior of the lock shell, and spring slot holes are evenly spaced at the bottom of the lock shell seat, and a lock core is attached to the inner side of the lock shell, and through slot holes are evenly spaced at the bottom of the inner wall of the lock core, and the bottom of the through slot hole penetrates the lock core and extends to the bottom of the lock core, and a spring is fixedly connected to the bottom of the inner wall of the spring slot hole. The anti-theft self-locking lock core is simple to operate and has strong practicality. The lock shell, lock shell seat, spring slot hole, lock core, through slot hole, spring, sliding column, pin body, arc card strip body, smooth body and toggle block constitute the main body of the device, the use of a fixing ring prevents the lock core from falling off, and the use of a spring telescopic rod, a triangular rod body, an insert rod and a card rod realizes the rotation of the toggle block controlled by the length of the key, thereby realizing further anti-theft measures for the lock body.

[0004] The anti-theft self-locking lock core disclosed in the above document has the following defects: when the key is inserted into the lock core, the technical solution cannot scrape off the dust on the surface of the key, thereby bringing the dust into the interior of the lock core, so that the dust affects the flexibility of the lock core, and the practicality is relatively low.

[0005] It can be seen from this that the existing anti-theft self-locking lock core does not have a good protection structure, and it is necessary to improve the existing deficiencies and provide an anti-theft self-locking lock core. Utility Model Content

[0006] The purpose of the utility model is to provide an anti-theft self-locking lock cylinder to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses an anti-theft self-locking lock core, comprising a lock core, a mounting groove is provided on one side of the lock core, a rotor is rotatably connected inside the mounting groove, an auxiliary structure is fixedly installed on one end of the rotor, and the auxiliary structure comprises a mounting block, a receiving groove, a first spring, a protective block and an arc surface, a mounting block is fixedly installed on one end of the rotor, the number of the mounting blocks is fixed to two, a receiving groove is provided on one side of the mounting block, a first spring is fixedly installed inside the receiving groove, the number of the first springs is fixed to six, a protective block is fixedly installed on one end of the first spring, and an arc surface is provided on one side of the protective block. By aligning a key with the middle of the two arc surfaces and inserting it, the arc surface on the protective block is arranged, and when the key is inserted, the two protective blocks are pressed into the inside of the receiving groove, the protective block squeezes the first spring, and the first spring rebounds to make the protective block fit the key, so that the protective block scratches dust on the surface of the key, thereby preventing the key from bringing dust into the inside of the lock core, and dust affecting the flexibility of the lock core, thereby improving practicality.

[0009] Furthermore, the inner wall of the lock core is provided with grooves, and the number of the grooves is fixed at four.

[0010] Furthermore, a second spring is fixedly mounted on the inner top of the groove, and a lock pin is fixedly mounted on one end of the second spring.

[0011] Furthermore, a through slot is formed on the upper surface of the rotor, the number of the through slots is fixed at four, the through slot is communicated with the groove, and a lock pin is clamped inside the groove.

[0012] Furthermore, a key slot is provided on one side of the rotor.

[0013] Furthermore, a connecting plate is fixedly mounted on the lower surface of the lock core, a thread groove is provided on the front side of the connecting plate, and the number of the thread grooves is fixed at two.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model inserts the key into the middle of the two curved surfaces. The curved surfaces on the protective blocks are arranged so that when the key is inserted, the two protective blocks are pressed into the interior of the accommodating groove. The protective blocks squeeze the first spring, and the first spring rebounds to make the protective blocks fit the key, so that the protective blocks scratch the dust on the surface of the key, thereby preventing the key from bringing dust into the interior of the lock core, causing the dust to affect the flexibility of the lock core, thereby improving practicality.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional exploded structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the auxiliary structure of the utility model;

[0021] Figure 4 For this utility model Figure 2 A magnified schematic diagram of the structure A;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] In the figure: 1, lock core; 101, mounting groove; 102, groove; 2, rotor; 201, through groove; 202, key slot; 3, auxiliary structure; 301, mounting block; 302, accommodating groove; 303, first spring; 304, protective block; 305, arc surface; 4, second spring; 5, lock pin; 6, connecting plate; 7, threaded groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 - Figure 4As shown, the utility model is an anti-theft self-locking lock core, including a lock core 1, a mounting groove 101 is opened on one side of the lock core 1, a rotor 2 is rotatably connected inside the mounting groove 101, an auxiliary structure 3 is fixedly installed on one end of the rotor 2, the auxiliary structure 3 includes a mounting block 301, a receiving groove 302, a first spring 303, a protective block 304 and an arc surface 305, a mounting block 301 is fixedly installed on one end of the rotor 2, the number of the mounting blocks 301 is fixed to two, a receiving groove 302 is opened on one side of the mounting blocks 301, a first spring 303 is fixedly installed inside the receiving groove 302, and the number of the first springs 303 is fixed to six, A protective block 304 is fixedly installed at one end of the first spring 303, and a curved surface 305 is provided on one side of the protective block 304. The key is inserted into the middle of the two curved surfaces 305. Through the arrangement of the curved surface 305 on the protective block 304, the two protective blocks 304 are pressed into the interior of the accommodating groove 302 when the key is inserted. The protective block 304 squeezes the first spring 303, and the first spring 303 rebounds to make the protective block 304 fit the key, so that the protective block 304 scratches the dust on the surface of the key, thereby preventing the key from bringing dust into the interior of the lock cylinder 1, which would affect the flexibility of the lock cylinder 1, thereby improving practicality.

[0026] The inner wall of the lock core 1 is provided with grooves 102 , and the number of the grooves 102 is fixed at four.

[0027] A second spring 4 is fixedly mounted on the inner top of the groove 102 , and a lock pin 5 is fixedly mounted on one end of the second spring 4 .

[0028] The upper surface of the rotor 2 is provided with through slots 201 . The number of the through slots 201 is fixed at four. The through slots 201 are connected to the grooves 102 . The locking pins 5 are clamped inside the grooves 102 .

[0029] A key slot 202 is formed on one side of the rotor 2 .

[0030] A connecting plate 6 is fixedly mounted on the lower surface of the lock core 1 , and a thread groove 7 is formed on the front surface of the connecting plate 6 . The number of the thread grooves 7 is fixed at two.

[0031] When in use, first insert the key into the middle of the two curved surfaces 305. Through the setting of the curved surface 305 on the protective block 304, the two protective blocks 304 are pressed into the interior of the accommodating groove 302 when the key is inserted. The protective block 304 squeezes the first spring 303, and the first spring 303 rebounds to make the protective block 304 fit the key, so that the protective block 304 scratches the dust on the surface of the key, thereby preventing the key from bringing dust into the interior of the lock core 1, which would affect the flexibility of the lock core 1 and improve practicality. Then the key is inserted into the key slot 202 to complete the unlocking.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-theft self-locking lock core, comprising a lock core (1), characterized in that: A mounting groove (101) is provided on one side of the lock core (1), a rotor (2) is rotatably connected inside the mounting groove (101), an auxiliary structure (3) is fixedly mounted on one end of the rotor (2), the auxiliary structure (3) comprising a mounting block (301), a receiving groove (302), a first spring (303), a protective block (304) and an arcuate surface (305), a mounting block (301) is fixedly mounted on one end of the rotor (2), the number of the mounting blocks (301) is fixed at two, a receiving groove (302) is provided on one side of each mounting block (301), a first spring (303) is fixedly mounted inside each receiving groove (302), the number of the first springs (303) is fixed at six, a protective block (304) is fixedly mounted on one end of the first spring (303), and a curved surface (305) is provided on one side of each protective block (304).

2. The anti-theft self-locking lock cylinder according to claim 1, characterized in that: The inner wall of the lock core (1) is provided with grooves (102), and the number of the grooves (102) is fixed at four.

3. The anti-theft self-locking lock cylinder according to claim 2, characterized in that: A second spring (4) is fixedly mounted on the inner top of each of the grooves (102), and a locking pin (5) is fixedly mounted on one end of the second spring (4).

4. The anti-theft self-locking lock cylinder according to claim 1, characterized in that: The upper surface of the rotor (2) is provided with through slots (201), the number of the through slots (201) is fixed at four, the through slots (201) are connected to the grooves (102), and a locking pin (5) is clamped inside the grooves (102).

5. The anti-theft self-locking lock cylinder according to claim 1, characterized in that: A key slot (202) is provided on one side of the rotor (2).

6. The anti-theft self-locking lock cylinder according to claim 1, characterized in that: A connecting plate (6) is fixedly mounted on the lower surface of the lock core (1), a thread groove (7) is provided on the front surface of the connecting plate (6), and the number of the thread grooves (7) is fixed at two.

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