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CN-224228395-U - Anti-drilling lock cylinder

CN224228395UCN 224228395 UCN224228395 UCN 224228395UCN-224228395-U

Abstract

The utility model relates to a prevent boring lock core, including the lock shell, install the lock courage in the lock shell, it prevents boring the piece to insert to be equipped with the U type on the lock courage, the lock courage is including being used for being connected sealed closing cap with the lock shell and the courage body of being connected with the closing cap, the slot has been seted up between closing cap and the courage body, the U type is prevented boring the piece and is inserted and locate in the slot, the shape looks adaptation of the shape of boring the piece and slot is prevented to the U type, the key hole has been seted up on the closing cap, the key groove has been run through in the courage body, the U type is prevented boring the piece and is included connecting portion and tooth's socket portion, the side cross-section of tooth's socket portion is the same with the shape of the side cross-section of key groove, the cross-section of U type is prevented boring the piece and is personally submitted the U type. The U-shaped anti-drilling sheet increases the anti-drilling area, has better anti-theft performance and is less prone to being damaged by drilling. Secondly, compare in the direct setting among the prior art and prevent boring the lid that exposes, the U type of this case prevents boring the piece and hides and set up between the courage body and the closing cap of lock courage, after the lock shell is installed, can't observe its mounted position from outside, burglary-resisting property is good and easy dismounting.

Inventors

  • WANG LIANGLIANG
  • ZENG XIONGFEI
  • Xu nanhai

Assignees

  • 中山市基信锁芯有限公司

Dates

Publication Date
20260512
Application Date
20250528

Claims (10)

  1. 1. The anti-drilling lock cylinder comprises a lock shell (1), wherein a lock liner (2) is arranged in the lock shell (1), and is characterized in that a U-shaped anti-drilling sheet (3) is inserted on the lock liner (2), the lock liner (2) comprises a sealing cover (21) connected with the lock shell (1) and a liner body (22) connected with the sealing cover (21), a slot (23) is formed between the sealing cover (21) and the liner body (22), the U-shaped anti-drilling sheet (3) is inserted in the slot (23), the shape of the U-shaped anti-drilling sheet (3) is matched with the shape of the slot (23), a key hole (211) is formed in the sealing cover (21), a key groove (221) is formed in the liner body (22) in a penetrating mode, the U-shaped anti-drilling sheet (3) comprises a connecting part (31) and a tooth groove part (32), and the shape of the side section of the tooth groove part (32) is identical to the shape of the side section of the key groove (221), and the cross section of the U-shaped anti-drilling sheet (3) is identical to the shape of the sealing cover (23).
  2. 2. The anti-drilling lock cylinder according to claim 1, wherein the cross section of the slot (23) is T-shaped, and the shape of the U-shaped anti-drilling sheet (3) is matched with the slot (23).
  3. 3. The anti-drilling lock cylinder according to claim 1, wherein the cross section of the slot (23) is elliptical, and the shape of the U-shaped anti-drilling sheet (3) is matched with the slot (23).
  4. 4. The anti-drilling lock cylinder according to claim 1, wherein the cross section of the slot (23) is square, and the shape of the U-shaped anti-drilling sheet (3) is matched with the slot (23).
  5. 5. The anti-drilling lock cylinder according to claim 1, wherein the cross section of the slot (23) is in a special-shaped rectangle with an inward concave arc-shaped slot (231), and the shape of the U-shaped anti-drilling piece (3) is matched with the slot (23).
  6. 6. The anti-drilling lock cylinder according to claim 1, wherein the lock cylinder (2) is integrally formed.
  7. 7. The anti-drilling lock cylinder according to claim 1, wherein the side surface of the U-shaped anti-drilling sheet (3) facing the sealing cover (21) is a smooth surface.
  8. 8. The anti-drilling lock cylinder according to claim 1, wherein the U-shaped anti-drilling sheet (3) is made of high-speed steel materials.
  9. 9. The anti-drilling lock cylinder according to claim 1, wherein the thickness of the U-shaped anti-drilling sheet (3) is 2mm-5mm.
  10. 10. The anti-drilling lock cylinder according to any one of claims 1 to 9, wherein the anti-drilling lock cylinder further comprises a poking peach (4), and the lock shell (1) and the lock liner (2) are symmetrically arranged in a left-right mode by taking the poking peach (4) as an axis.

Description

Anti-drilling lock cylinder Technical Field The utility model relates to the technical field of locks, in particular to an anti-drilling lock cylinder. Background In the field of safety protection of mechanical lock cylinders, preventing illegal drilling unlocking is one of key technologies for guaranteeing the safety of locks. The traditional mechanical lock cylinder mostly adopts a mode of drilling holes in a lock shell and a lock liner and inserting a drilling-preventing pin shaft, and drill bit invasion is blocked through the high hardness characteristic of the pin shaft. In this scheme, lock courage is connected with courage body by the closing cap and constitutes, and inside is equipped with key hole and key groove, prevents boring the round pin axle then through interference fit or welded fastening in lock courage drilling, forms scattered protection fulcrum around the key hole. However, the traditional scheme has the obvious defects that firstly, high-precision drilling is needed on the lock liner for installing the anti-drilling pin shaft, the processing procedure is complicated, the production cost is high, the pin shaft is rigidly connected with the lock liner, once the lock liner is required to be integrally replaced after being damaged, the maintenance cost is high, secondly, a protection blind area is formed at the interval between the pin shafts, lawless persons can break through from the gap by using a slender tool, the pin shafts are stressed unevenly when the pin shafts are prevented from drilling, the lawless persons can drill out by using a self-tapping screw through the attack, the anti-drilling effect of the traditional scheme is poor, the anti-drilling time is short, thirdly, the key hole structure of different types of lock liners such as a marble lock and a blade lock is large in difference, the anti-drilling pin shaft is required to be designed in a pertinence mode, the pin shaft is arranged at an idle position, the processing cost is high, the pin shaft cannot be used universally, and the application range of products is limited. There is another kind of lock core that prevents boring still on the market at present, and it prevents boring the lid through the lock courage that directly connects on the lock shell at the key hole position installation of lock courage, but this kind prevents boring the lid, because not with lock courage integrated design, with lock shell secondary connection, the illegal part is destroyed easily. The anti-drilling cover installed in the mode is directly exposed under the lock shell, an illegal person can easily identify the anti-drilling cover, and therefore the anti-drilling cover is bypassed to cut into the lock liner from the side edge, the lock is damaged, and the safety coefficient is low. Therefore, how to overcome the above-mentioned drawbacks has become an important issue to be solved by the person skilled in the art. Disclosure of utility model The utility model overcomes the defects of the technology and provides the anti-drilling lock cylinder. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a prevent boring lock core, includes the lock shell, install the lock courage in the lock shell, it prevents boring the piece to insert to be equipped with the U type on the lock courage, the lock courage is including being used for being connected sealed closing cap and the courage body of being connected with the closing cap with the lock shell, the slot has been seted up between closing cap and the courage body, the U type prevents boring the piece and inserts and locate in the slot, the shape looks adaptation of U type prevents boring the piece and slot, the key hole has been seted up on the closing cap, the key groove has been run through in the courage body, the U type prevents boring the piece and includes connecting portion and tooth's socket portion, the cross-section of tooth's socket portion is the same with the shape of key groove's cross-section, the cross-section of U type prevents boring the piece is the U type. Further, the cross section of the slot is T-shaped, and the shape of the U-shaped anti-drilling sheet is matched with the slot. Further, the cross section of the slot is elliptic, and the shape of the U-shaped anti-drilling sheet is matched with the slot. Further, the cross section of the slot is square, and the shape of the U-shaped anti-drilling sheet is matched with the slot. Further, the cross section of the slot is in a special-shaped rectangle with an inward concave arc groove, and the shape of the U-shaped anti-drilling sheet is matched with the slot. Further, the lock liner is integrally formed. Further, the side surface of the U-shaped anti-drilling sheet facing one side of the sealing cover is a smooth surface. Further, the U-shaped anti-drilling sheet is made of high-speed steel materials. Further, the thickness of the U-shaped anti-drill