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D-shaped antitheft lock

An anti-theft lock, D-type technology, used in padlocks, building locks, buildings, etc., can solve the problems of D-type anti-theft locks, such as poor anti-theft performance, and achieve the effect of increasing anti-theft performance.

Active Publication Date: 2012-10-24
XINXIANG VOCATIONAL & TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore the insurance anti-theft performance of the D type anti-theft lock that uses at present is relatively poor

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0011] Embodiments are described in detail with reference to the accompanying drawings. A D-shaped anti-theft lock, comprising a tubular straight handle 1 and a U-shaped lock ring 2, one end of the U-shaped lock ring 2 has a pin hole through which a pin shaft is riveted with a U-shaped part 3 at one end of the tubular straight handle 1 to form an external hinge; The tubular straight handle 1 is hollow, and a round tube 11 and a round tube 12 are respectively installed at both ends of the inner wall of the cavity, and a lock cylinder 4 of a tumbler lock is stuck between the round tube 11 and the round tube 12, and the front end of the lock cylinder 4 has an eccentric Shaft, the deadbolt 5 matched with the eccentric shaft blocks the lock bar 6 to complete the locked state, and a circular steel sheet 8 can be added to the end face of the key hole of the lock core 4, and the joint surface of the circular steel plate 8 and the lock core 4 can be Steel ball 9 is added to form a pres...

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PUM

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Abstract

The invention discloses a D-shaped antitheft lock. The technical scheme disclosed by the invention has the key points that the D-shaped antitheft lock comprises a tubular straight shank and a U-shaped lock ring; a pinhole is arranged at one end of the U-shaped lock ring and is riveted with a U-shaped part at one end of the tubular straight shank by a hinge pin to form an outer hinge; the tubular straight shank is hollow; both ends of the inner wall of a cavity of the tubular straight shank are respectively provided with one round tube; a lock cylinder of an elastic lock is clamped between the two round tubes; the front end of the lock cylinder is provided with an eccentric shaft; a bolt in the lock cylinder is clamped with a lock bar to complete a locking state; a round steel sheet is added on the end face of a keyhole of the lock cylinder; a steel ball can be added on the joint face of the round steel sheet and the lock cylinder to form a pressure bearing; and the lock cylinder is arranged at the middle part of the tubular straight shank. According to the invention, the condition that the end face of an opening is knocked by force to ensure the bolt to fall down so that the antitheft lock is unlocked can be effectively prevented; and moreover, the lock cylinder of the D-shaped antitheft lock is arranged at the middle part of the tubular straight shank, so that the D-shaped antitheft lock takes good effects of preventing the D-shaped antitheft lock from being technically unlocked and preventing the lock cylinder from being broken by an electric drill.

Description

technical field [0001] The invention relates to the field of anti-theft locks, in particular to a D-type anti-theft lock with excellent anti-theft performance. Background technique [0002] One end of the popular D-type anti-theft lockset on the market is a hinge, and the other end is open, and the groove on the lock ring at one end of the opening is blocked by the dead bolt to complete the locking process. However, using such a lockset, it is easy to knock the end face of the opening with violence so that the dead bolt will fall off and the anti-theft lock will be opened. And the key hole is arranged at one end of the opening, and it is also easy to open by technical means, and the lock can also be opened by using an electric drill to break the lock cylinder. Therefore the insurance anti-theft performance of the D type anti-theft lock that uses at present is relatively poor. Contents of the invention [0003] The object of the present invention is to provide a D-type an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05B67/00
Inventor 李一达张秋生张丹枫
Owner XINXIANG VOCATIONAL & TECHN COLLEGE