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CN-122014057-A - Antitheft lock cylinder

CN122014057ACN 122014057 ACN122014057 ACN 122014057ACN-122014057-A

Abstract

The invention discloses an anti-theft lock cylinder, which comprises a lock shell, wherein a lock liner is rotatably arranged in the lock shell, a ball assembly sequentially comprises a sealing ball, a first spring, a flat ball and balls, a plurality of third ball holes are formed in the lock liner, a brake bolt is arranged on the side edge of the lock liner, a spring column is arranged in the third spring holes, a first protruding part extends inwards from the spring column, the first protruding part extends into a key hole, a first gap corresponding to the brake bolt is formed in the outer side position of the spring column, a second spring is arranged at the top position of the spring column, a third spring is arranged on the front side and the rear side of the brake bolt, a second gap embedded by the brake bolt is formed in the inner side wall of the lock shell, and when the lock liner and the lock shell are in a locking state, the brake bolt is embedded into the second gap to prevent the lock liner and the lock shell from rotating mutually, so that the difficulty of abnormal unlocking of the lock cylinder is greatly improved, and the lock cylinder cannot be rotated.

Inventors

  • WANG DAOJING
  • WANG DAOAN

Assignees

  • 中山大汉安防科技有限公司

Dates

Publication Date
20260512
Application Date
20260323
Priority Date
20260121

Claims (10)

  1. 1. An anti-theft lock cylinder comprises a lock shell (1), a lock liner (2) is rotationally arranged on the lock shell (1), a key hole (201) for a key to be inserted is formed in the lock liner (2), a plurality of first marble holes (101) are formed in the lock shell (1), a plurality of second marble holes (202) are formed in the lock liner (2), a plurality of groups of marble assemblies (21) are arranged in the first marble holes (101) and the second marble holes (202), the marble assemblies (21) sequentially comprise sealing balls (211), first springs (212), flat balls (213) and marble (214), and the anti-theft lock cylinder is characterized in that a plurality of third marble holes (203) are formed in the lock liner (2), the third marble holes (203) are located at one side positions of the second marble holes (202), a plurality of second marble holes (202) are formed in the side edges of the lock liner (2), a plurality of marble assemblies (21) are arranged in the third spring holes (203), a marble column (23) is arranged in the third spring hole (203), a plurality of marble columns (23) are arranged in the side positions corresponding to the first marble holes (23) and the first marble holes (23) extend to the first marble columns (23) to the first marble holes (23) in the positions, the first marble columns (23) extend to the positions of the first marble columns (23) to the second positions (23), third springs (25) are arranged on the front side and the rear side of the brake bolt (22), the third springs (25) push the brake bolt (22) to move towards the spring column (23), and second gaps (102) in which the brake bolt (22) is embedded are formed in the inner side wall of the lock shell (1).
  2. 2. The anti-theft lock core according to claim 1, wherein a first slot (204) is longitudinally formed in the front and rear sides of the lock cylinder (2), a crescent positioning piece (26) is installed in the first slot (204), a positioning protrusion (261) is arranged in the middle of the crescent positioning piece (26), and the third spring (25) is fixed on the positioning protrusion (261).
  3. 3. The anti-theft lock core according to claim 2, wherein a plurality of third marble holes (203) are transversely arranged in two groups and are respectively arranged at two sides of the second marble holes (202), and the brake bolts (22), the spring posts (23), the third springs (25) and the crescent positioning pieces (26) are symmetrically arranged.
  4. 4. An anti-theft lock cylinder according to claim 3, characterized in that the second spring (24) and the cylinder (23) are mounted from the bottom of the cylinder (2) into the third marble hole (203).
  5. 5. The anti-theft lock core according to claim 1, characterized in that two first through holes (205) are arranged at the position, close to a key hole (201), of the lock cylinder (2), and anti-drilling pins (27) are arranged in the first through holes (205).
  6. 6. An anti-theft lock cylinder according to claim 1, characterized in that the first protrusion (231) is cylindrical or oval.
  7. 7. The anti-theft lock core according to claim 1, wherein positioning strips (28) are arranged on two sides in the key hole (201).
  8. 8. An anti-theft lock cylinder according to claim 1, characterized in that the end of the tumbler (22) embedded in the first notch (232) corresponds to the first notch (232) in a V-shape or trapezoid shape.
  9. 9. The anti-theft lock core according to claim 1, wherein a containing groove (104) is formed in the middle of the lock shell (1), a poking peach (3) is arranged in the containing groove (104), and the poking peach (3) is sleeved on the lock liner (2).
  10. 10. The anti-theft lock core according to claim 9, wherein a driving block (31) is arranged at the end part of the lock core (2), a driving protrusion (311) is arranged on the driving block (31), a groove (312) is arranged in the dial peach (3), and the driving protrusion (311) enters the groove (312) of the dial peach (3) to drive the dial peach (3) to rotate.

Description

Antitheft lock cylinder Technical Field The invention relates to the field of lock cylinders, in particular to an anti-theft lock cylinder. Background Most of anti-theft lock cylinders in the market at present cannot be prevented from being opened technically, and cannot play an anti-theft role. Particularly, in recent years, a plurality of electric guns for unlocking appear on the market, and a general lock cylinder is opened for a few seconds, and even a plurality of lock cylinders passing the B-level certification lock cylinder of the public security department are very easy to be opened. Therefore, the inventor specially develops and designs the structure, meets the market demand and protects the life and property safety of customers. Disclosure of Invention Aiming at the defects of the prior art, the invention aims to provide an anti-theft lock cylinder, which can solve the problems that the lock cylinder in the prior art cannot be prevented from being opened technically, cannot play an anti-theft role, and even a plurality of lock cylinders passing the B-level authentication lock cylinder of the public security department are very easy to be opened. The aim of the invention is achieved by the following technical scheme. The invention aims to provide an anti-theft lock cylinder, which comprises a lock shell, wherein a lock liner is rotatably arranged in the lock shell, a key hole for a key to be inserted is formed in the lock liner, a plurality of first marble holes are formed in the lock shell, a plurality of second marble holes are formed in the lock liner, a plurality of groups of marble components are arranged in the first marble holes and the second marble holes, the marble components sequentially comprise sealing balls, first springs, flat balls and marble, a plurality of third marble holes are formed in the lock liner, the third marble holes are positioned at one side position of the second marble holes, a tumbler is arranged on the side edge of the lock liner, a first protruding portion extends inwards, the first protruding portion extends into the key hole, a first notch corresponding to the tumbler is formed in the outer side position of the tumbler, a second spring is arranged at the top position of the tumbler, three third springs are arranged at the front side and the rear of the tumbler, and the third tumbler is embedded into the inner side wall of the lock shell in a moving mode. The first slot is longitudinally formed in the front and back of the side edge of the lock liner, a crescent positioning sheet is arranged in the first slot, a positioning protrusion is arranged in the middle of the crescent positioning sheet, and the third spring is fixed on the positioning protrusion. The plurality of third marble holes are transversely provided with two groups, the two groups are respectively arranged at the two sides of the second marble holes, and the brake bolts, the elastic columns, the third springs and the crescent positioning pieces are symmetrically arranged. The second spring and the spring column are installed into the third marble hole from the bottom of the lock liner. The lock liner is provided with two first through holes close to the key hole, and anti-drilling pins are arranged in the first through holes. The first protruding portion is cylindrical or elliptical. Positioning strips are arranged on two sides in the key hole. The end part of the brake bolt embedded in the first notch corresponds to the V-shaped or trapezoid of the first notch. The middle part position of lock shell is provided with the accommodation groove, be provided with in the accommodation groove and dial the peach, dial the peach cover on the lock courage. The end part of the lock liner is provided with a driving block, the driving block is provided with a driving protrusion, a groove is formed in the peach pulling block, and the driving protrusion enters the groove of the peach pulling block to drive the peach pulling block to rotate. Compared with the prior art, the invention has the following effects: 1) The invention describes an anti-theft lock cylinder, which comprises a lock shell, wherein a lock liner is rotatably arranged in the lock shell, a key hole for a key to be inserted is formed in the lock liner, a plurality of first marble holes are formed in the lock shell, a plurality of second marble holes are formed in the lock liner, a plurality of groups of marble components are arranged in the first marble holes and the second marble holes, the marble components sequentially comprise sealing balls, first springs, flat balls and marble, a plurality of third marble holes are formed in the lock liner, the third marble holes are located at one side positions of the second marble holes, a tumbler is arranged at the side edge of the lock liner, a first protruding portion is arranged in the third marble holes, the tumbler extends to the inside of the key hole, a first notch corresponding to the tumbler is