CN219451802U

CN219451802U - Anti-picking lock

Info

Publication number: CN219451802U
Application number: CN202320790481.5U
Authority: CN
Inventors: 王金泉
Original assignee: Zhejiang Pujiang Chaohang Lock Industry Co ltd
Current assignee: Zhejiang Pujiang Chaohang Lock Industry Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-08-01
Anticipated expiration: 2033-04-11

Abstract

The utility model discloses an anti-prying lock, and belongs to the field of locks. The lock comprises a lock core, a lock core cover and a lock body, wherein the lock core is embedded in a lock core cavity of the lock body, the lock core cover and the lock core are coaxially arranged, and the lock core cover is embedded at an opening of the lock core cavity and is abutted with the lock core to limit the axial movement of the lock core; the lock cylinder cover is rotationally connected with the lock body to have independent idling capability; the surface of the lock cylinder cover is provided with a through anti-drilling groove which is used for being matched with a keyhole of the lock cylinder to unlock; the width of the anti-drilling groove passing through the shaft center is smaller than the length of the buttonhole, so that the matching angle of the anti-drilling groove and the buttonhole is restricted. The lock core cover can realize the capability of independent idle running, the surface is provided with the anti-drilling groove, and the matching angle between the anti-drilling groove and the lock hole is restricted, so that the lock core is prevented from being damaged by violence of large and small caliber electric drills, and theft is prevented.

Description

Anti-picking lock

Technical Field

The utility model belongs to the field of locks, and particularly relates to an anti-prying lock.

Background

The traditional common mechanical lock has extremely high mutual unlocking rate of the upper and lower marbles due to the adoption of the lock core structure, and can be used for violently unlocking by a thief. The unlocking market in society aims at the fact that the unlocking tools developed by the traditional lockset are quite large, and unlocking by the unlocking tools is just like unlocking by an original key. The lock cylinder cover and the lock cylinder are fixedly arranged for the traditional padlock, the lock cylinder cover is aligned by using the hand-held electric drill, the rotary electric drill can be broken together with the lock cylinder cover and the lock cylinder, the lock cylinder cover part is improved for some traditional padlocks, the traditional padlocks are round and can idle, the large-drill electric drill is prevented from damaging the lock cylinder, but the small-caliber electric drill in the society can not effectively prevent the lock cylinder from being damaged by violence.

Most of the traditional lock cylinders do not have the anti-drilling function currently, so that lawbreakers can break off the lock cylinder cover by using a tool, the whole lock cylinder is scattered, and the lawbreakers can open the door to enter the house for theft, so that the traditional lock cylinders are low in anti-theft performance currently.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an anti-prying lock, which can realize that a lock core cover has independent idling capability, and the surface is provided with an anti-drilling groove, so that the matching angle of the anti-drilling groove and a lock hole is restricted, and the lock core is prevented from being damaged by violence of a large-caliber electric drill and theft is prevented.

The utility model relates to an anti-picking lock, which comprises a lock cylinder, a lock cylinder cover and a lock body, wherein the lock cylinder is embedded in a lock core cavity of the lock body, the lock cylinder cover and the lock cylinder are coaxially arranged, and the lock cylinder cover is embedded at an opening of the lock cylinder cavity and is abutted with the lock cylinder to limit the axial movement of the lock cylinder; the lock cylinder cover is rotationally connected with the lock body to have independent idling capability; the surface of the lock cylinder cover is provided with a through anti-drilling groove which is used for being matched with a keyhole of the lock cylinder to unlock; the width of the anti-drilling groove passing through the shaft center is smaller than the length of the buttonhole, so that the matching angle of the anti-drilling groove and the buttonhole is restricted.

As a further improvement of the utility model, the middle of the lock core cover is provided with the jump ring groove, and the thickness of the jump ring groove is larger than that of the jump ring, so that the jump ring can rotate in the jump ring groove.

As a further improvement of the utility model, the lock cylinder cover is cylindrical; a clamping spring groove is formed in the middle of the periphery of the lock cylinder cover, and a clamping spring is embedded in the clamping spring groove; a rotating groove is formed in the inner wall of the opening of the lock cylinder cavity; the part of the clamp spring protruding out of the lock core cover is embedded in the rotating groove so as to limit the axial movement of the lock core cover.

As a further improvement of the utility model, the thickness of the snap spring is smaller than the groove width of the snap spring groove, so that the lock cylinder cover has the capability of idling independently of the lock cylinder.

As a further improvement of the utility model, the thickness of the snap spring is 1mm; the groove width of the snap spring groove is 1.5mm.

As a further development of the utility model, the thickness of the snap spring is smaller than the groove width of the rotating groove.

As a further improvement of the utility model, the thickness of the snap spring is 1mm; the width of the rotary groove is 1.5mm.

As a further improvement of the utility model, the anti-drilling groove is rectangular; the length of the anti-drilling groove is larger than or equal to the length of the buttonhole, and the width of the anti-drilling groove is larger than or equal to the width of the buttonhole, so that the anti-drilling groove is matched only when the anti-drilling groove is parallel to the buttonhole.

Compared with the prior art, the utility model has the beneficial effects that: the design of this product is effectual has prevented the way that hand-held type electric drill violently unblanked, and the independent idle running of lock core lid is effectual prevents that the electric drill from destroying together with the lock core, and the angle constraint of preventing the boring slot lets the drilling of electric drill unable the inserting, and the rectangular slot design of preventing boring slot can effectively prevent the destruction of different bore size electric drills, makes traditional padlock factor of safety obtain very big promotion.

Drawings

FIG. 1 is a schematic diagram of the overall perspective structure of a lock cylinder of the present utility model;

FIG. 2 is a schematic perspective view of the anti-theft lock cylinder cover of the present utility model;

FIG. 3 is a schematic perspective view of a lock core cavity of the present utility model;

fig. 4 is a schematic perspective view of the cylinder cover of the present utility model.

The reference numerals in the figures illustrate:

the lock cylinder 1, the lock cylinder cover 11, the anti-drilling groove 12, the clamp spring 13, the lock cylinder body 14, the lock body 2, the lock cylinder cavity 21 and the rotating groove 22.

Detailed Description

First embodiment: referring to fig. 1-2, an anti-picking lock comprises a lock cylinder 1, a lock cylinder cover 11, an anti-drilling groove 12, a clamp spring 13, a lock cylinder body 14, a lock body 2 and a lock core cavity 21.

The lock core 1 is embedded in the lock body 2, the lock core 1 comprises a lock core cover 11, an anti-drilling groove 12, a clamp spring 13 and a lock core body 14, the lock core cover 11 and the lock core 1 are coaxially arranged, the lock core cover 11 is cylindrical, and the lock core cover 11 is embedded in the opening of the lock core cavity 21 and is abutted with the lock core 1 to limit the axial movement of the lock core 1.

A through anti-drilling groove 12 is formed in the surface of the lock cylinder cover 11, and the anti-drilling groove 12 is used for matching with a keyhole of the lock cylinder 1 to unlock. The width of the anti-drilling slot 12 at the axial direction is smaller than the length of the keyhole so that the mating angle of the anti-drilling slot 12 to the keyhole is constrained. The anti-drilling groove 11 is rectangular, the length of the anti-drilling groove 11 is larger than or equal to the length of the keyhole, and the width of the anti-drilling groove 11 is larger than or equal to the width of the keyhole, so that the anti-drilling groove 11 is matched only when being parallel to the keyhole.

The middle part of the periphery of the lock core cover 11 is provided with a clamp spring groove, and a clamp spring 13 is arranged in the clamp spring groove. The clamp spring 13 is crescent, and the thickness of the clamp spring 13 is 1mm; the groove width of the snap spring groove is 1.5mm. The thickness of the snap spring 13 is smaller than the width of the snap spring groove, so that the lock cylinder cover 11 has the capability of idling independently of the lock cylinder 1.

The lock cylinder body 14 is abutted against the lock cylinder cover 11, and the lock cylinder body 14 is a conventional technology in the field, and will not be described here.

The lock body 2 comprises a lock core cavity 21 and a rotating groove 22, wherein the lock core cavity 21 is arranged in the middle of the lower end of the lock body 2, the shape of the lock core cavity 21 and the shape of the lock core body 14 are unified, the lock core body 14 is completely embedded in the lock core cavity 21, and the rotating groove 22 is arranged on the inner wall of the opening of the lock core cavity 21. The part of the clamp spring 13 protruding out of the lock cylinder cover 11 is embedded in the rotating groove 22 so as to limit the axial movement of the lock cylinder cover 11. The thickness of the snap spring 13 is smaller than the groove width of the rotating groove 22. The thickness of the snap spring is 1mm, and the groove width of the rotating groove 22 is 1.5mm.

Working principle: the idling of the lock core cover 11 makes an electric drill unable to damage the lock core 1, the rectangular design of the anti-drilling groove 12 makes a fine-hole electric drill unable to be inserted, and after combination, the electric drill is unable to damage the traditional padlock lock core 1, and the electric drill rancour only can make the electric drill and the lock core cover 11 idle together on the anti-drilling groove 12, but cannot drill into the lock core 1 and damage the lock core.

Claims

1. The utility model provides an anti-picking lock, includes lock core (1), lock core lid (11) and lock body (2), and lock core (1) inlays in lock core chamber (21) of locating lock body (2), its characterized in that:

the lock cylinder cover (11) is coaxially arranged with the lock cylinder (1), and the lock cylinder cover (11) is embedded in the opening of the lock cylinder cavity (21) and is abutted with the lock cylinder (1) to limit the axial movement of the lock cylinder (1); the lock core cover (11) is rotationally connected with the lock body (2) so as to have independent idle rotation capacity; the surface of the lock core cover (11) is provided with a through anti-drilling groove (12), and the anti-drilling groove (12) is used for matching with a keyhole of the lock core (1) to unlock; the width of the anti-drilling groove (12) passing through the shaft center is smaller than the length of the buttonhole, so that the matching angle of the anti-drilling groove (12) and the buttonhole is restricted.

2. A pick-resistant lock as claimed in claim 1, wherein: the lock core cover (11) is cylindrical; a clamp spring groove is formed in the middle of the periphery of the lock core cover (11), and a clamp spring (13) is embedded in the clamp spring groove; a rotating groove (22) is formed in the inner wall of the opening of the lock core cavity (21); the part of the snap spring (13) protruding out of the lock cylinder cover (11) is embedded in the rotating groove (22) so as to limit the axial movement of the lock cylinder cover (11).

3. A pick-resistant lock as claimed in claim 2, wherein: the thickness of the clamp spring (13) is smaller than the groove width of the clamp spring groove, so that the lock cylinder cover (11) has the independent idle rotation capacity with the lock cylinder (1).

4. A pick-resistant lock as claimed in claim 3, wherein: the thickness of the clamp spring (13) is 1mm; the groove width of the snap spring groove is 1.5mm.

5. A pick-resistant lock as claimed in claim 3, wherein: the thickness of the snap spring (13) is smaller than the groove width of the rotating groove (22).

6. An anti-pick lock as defined in claim 5, wherein: the thickness of the clamp spring is 1mm; the width of the rotary groove (22) is 1.5mm.

7. A pick-resistant lock as claimed in claim 1, wherein: the anti-drilling groove (12) is rectangular; the length of the anti-drilling groove (12) is greater than or equal to the length of the keyhole, and the width of the anti-drilling groove (12) is greater than or equal to the width of the keyhole, so that the anti-drilling groove (12) is matched only when the anti-drilling groove is parallel to the keyhole.