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Antitheft lock head with stepped-shaped inner bolt holes

A marble hole and step-shaped technology is applied in the field of anti-theft lock heads, which can solve the problems of poor safety performance of anti-theft lock heads, and achieve the effects of increasing the difficulty of theft lock, excellent anti-theft performance, and improving anti-theft performance.

Active Publication Date: 2017-08-29
钟积桥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problem of poor safety performance of the existing anti-theft lock head

Method used

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  • Antitheft lock head with stepped-shaped inner bolt holes
  • Antitheft lock head with stepped-shaped inner bolt holes
  • Antitheft lock head with stepped-shaped inner bolt holes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1-7 As shown, the anti-theft lock head with a stepped inner pin hole includes a lock cylinder 1, a lock cylinder sleeve 2 and a pin mechanism.

[0036] The lock cylinder sleeve 2 is provided with a lock cylinder hole 21 and an outer pinhole 22, and the outer pinhole holes 22 are distributed along the axial direction of the lock cylinder sleeve 2, and the number is five, which penetrate from the outer surface of the lock cylinder sleeve 2 to the lock cylinder in hole 21.

[0037] Lock cylinder 1 is provided with key hole 11, left inner mounting hole 12, right inner mounting hole 13 and inner marble hole 14, and left inner mounting hole 12 and right inner mounting hole 13 are symmetrically arranged on both sides of key hole 11, both They all penetrate from the outer surface of the lock core 1 to the key hole 11, and the inner pinholes 14 are distributed along the axial direction of the lock core 1, and there are five in number, which penetrate from the ou...

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PUM

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Abstract

An antitheft lock head with stepped-shaped inner bolt holes comprises a lock core, a lock core sleeve and a bolt mechanism. The lock core is rotationally installed in a lock core hole of the lock core sleeve. The bolt mechanism comprises a left inner plug, a left inner spring, a left inner bolt, a right inner plug, a right inner spring, a right inner bolt, an inner locking bolt, outer locking bolts, an outer spring and an outer plug. The lock core is totally provided with N bolt holes, wherein X inner bolt holes are the stepped holes, Y inner bolt holes are straight holes, X plus Y is N, X is larger than or equal to 1, and N is larger than or equal to 3. The bilateral clearance between the large diameter section of each stepped hole and the corresponding outer locking bolt is A, the bilateral clearance between each straight hole and the corresponding outer locking bolt is B, and A is larger than B. The bilateral clearances of the inner bolt holes and the outer locking bolts are not consistent and different in size, during lock theft, the parts with smaller clearances need to be opened first, then the parts with larger clearances are opened, the lock theft difficulty is increased, and antitheft performance is promoted.

Description

technical field [0001] The invention relates to a lock head part of a pin lock, in particular to a lock head of an anti-theft lock with a stepped inner pin hole. Background technique [0002] The structure of the existing pin lock head parts is as follows: Figure 8-10 As shown, it includes a lock core 4, a lock core sleeve 5 and a pin mechanism; the lock core sleeve 5 is provided with an axially extending lock core hole and a radially extending outer pin hole, and the lock core hole passes through one end of the lock core sleeve 5 To the other end, there are a plurality of outer pinholes distributed along the axial direction of the lock core sleeve 5 , which penetrate from the outer surface of the lock core sleeve 5 to the lock core hole. The lock cylinder 4 is provided with an axially extending key hole 41 , a radially extending left inner mounting hole, a radially extending right inner mounting hole, and a radially extending inner pin hole. The key hole 41 runs through f...

Claims

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Application Information

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IPC IPC(8): E05B27/08E05B27/00E05B15/00
CPCE05B27/0017E05B27/0032E05B27/0078E05B27/08
Inventor 钟积桥
Owner 钟积桥
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