CN201011197Y

CN201011197Y - Anti-theft underplate of externally mounted door lock

Info

Publication number: CN201011197Y
Application number: CNU2007200501157U
Authority: CN
Inventors: 练细全
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-09
Filing date: 2007-04-09
Publication date: 2008-01-23
Anticipated expiration: 2017-04-09

Abstract

The utility model provides an antitheft base board of an external door lock, which is mounted between a door lock body and a door. The utility model comprises a base board. The door lock body and a lock core are respectively arranged at the two sides of the base board opened with a transmission hole, and the lock core transmission piece connencted with the lock core is inserted into the transmission hole; moreover, the base board surface is provided with an antitheft blocking piece and an elastomer which forces the antitheft blocking piece to move toward the transmission hole. When the lock core and the lock core transmission piece are taken forcedly from the door, the antitheft blocking piece moves downwards to the transmission hole in the effect of the elastomer and covers the transmission hole. The utility model can be disrectly installed on door with the aim to replace the prior three-eye pressing board in the same lock; even the lock core and the lock core transmission piece are pulled out forcedly. The transmission hole is automatically closed, promising a perfect antitheft function; moreover, an adjustable fixing board is further arranged between the base board and the lock body, being greatly convenient for the mounting and changing of the door lock. Besides, the two faces of the utility model have the same layout and are both useful, being applicable to the mounting of the door lock with left opening or right opening.

Description

A kind of antitheft base plate of rim lock

Technical field

The utility model relates to a kind of door latch structure, specifically a kind of antitheft base plate of rim lock.

Background technology

Existing rim lock only needs one the driving hole on the small articles of slight screwdriver and so on the insertion lock body after lock core and lock core driver blade are pulled out, can open.This defective has become rim lock manufacturer and each user difficult problem anxious to be solved.

The utility model content

The technical problems to be solved in the utility model provides that a kind of security performance is good, the antitheft base plate of the rim lock of pick-proof and anti-theft.

For solving the problems of the technologies described above, the utility model by the following technical solutions:

A kind of antitheft base plate of rim lock, be installed between Door lock and the door, comprise bottom-plate body, Door lock and lock core are installed on the bottom-plate body both sides respectively, on bottom-plate body, have a driving hole, be interspersed in the driving hole elastic body that an antitheft catch also is installed on the bottom-plate body surface and forces antitheft catch trend driving hole to move with the lock core driver blade of lock core interlock.When lock core and lock core driver blade were taken away from door by force, antitheft catch was displaced downwardly on the driving hole in elastomeric effect, and driving hole is covered in.

In order to make anti-theft effect better, antitheft catch area should be slightly larger than the driving hole area.

As the improvement to such scheme, above-mentioned elastic body is a torsion spring or elastic sheet metal, and elastic body one end is fixed on the bottom-plate body, and the other end presses closer on antitheft catch.On antitheft catch, have sliding tray, be provided with to cooperate at the bottom-plate body correspondence position and be beneficial to that antitheft catch is directed to slide and prevent stop screw and the dog screw that antitheft catch comes off with sliding tray.Be used for fixing the screw hole that lock core is installed on the screw rod on the bottom-plate body also having on the bottom-plate body.

As further improvement to such scheme, two fixedly fixed heads of lock body also are installed on bottom-plate body, on fixed head, have the rectangle adjustment hole of being convenient to regulate the fixed head position.Have the breach that makes fixed head be easy to fracture in the middle of the fixed head.Lock body directly is installed on the fixed head.When lock body that need more renew or different model, on the screwed hole that can the fixed head folding be made on the lock body self for two-section and by adjustment hole by breach and the fixed head accordingly fixing hole align.

The utility model can directly be installed on the door, replaces three intraocular pressure plates of existing similar lock, when lock core and lock core driver blade are pulled out by force, closes driving hole automatically, has good anti-theft feature.Simultaneously, between bottom-plate body and lock body, set up an adjustable fixed head, be very easy to the installation and the replacing of door lock.And the utility model tow sides layout unanimity all can be used, be suitable for that a left side is opened or right evolution to door lock install.

Description of drawings

Accompanying drawing 1 is installed structural representation behind the lock core for the utility model embodiment; Accompanying drawing 2 is removed structural representation behind the lock core for present embodiment; Accompanying drawing 3 is a present embodiment bottom-plate body structural scheme of mechanism; Accompanying drawing 4 is the antitheft baffle structure schematic diagram of present embodiment; Accompanying drawing 5 present embodiment fixed head structural representations; Accompanying drawing 6 is present embodiment and lock body, lock core decomposing state structural representation.

The specific embodiment

For the ease of those skilled in the art's understanding, the utility model structural principle is described in further detail below in conjunction with specific embodiment and accompanying drawing:

Shown in accompanying drawing 1～6, the scheme that present embodiment disclosed comprises a bottom-plate body 1, be installed on bottom-plate body 1 surface flexibly the antitheft catch 2 and of translation be used for fixing the fixed head 4 of lock body 6, on bottom-plate body 1, also have a driving hole 13.

Bottom-plate body 1 is a plane structure, and lock core 5 is installed on bottom-plate body 1 both sides respectively with lock body 6, and 1 of bottom-plate body is directly fixed on the door.Driving hole 13 is positioned at bottom-plate body 1 middle part, is connected with lock body 6 by driving hole with the lock core driver blade 51 of lock core 5 interlocks.

Antitheft catch 2 is positioned at driving hole 13 next doors, simultaneously, also is fixed with two stop screws 18 and two dog screws 16 of the antitheft catch of restriction 2 positions on the bottom-plate body 1 on driving hole 13 next doors.Two stop screws 18 lay respectively at antitheft catch, and about in the of 2 both sides, and 16 of two dog screws are arranged in antitheft catch 2, have two on the correspondingly antitheft catch 2 and are used for the parallel sliding groove 21 that two dog screws 16 pass.Four screws are four jiaos of location, cause the antitheft catch 2 can only be along sliding tray 21 direction translations.Certainly, can move flexibly in order to make antitheft catch 2, dog screw 16 diameters are slightly less than sliding tray 21.Both sides also have two screw rods hole 17 at driving hole about in the of 13, be fixed with two screw rods 52 by screw hole 17.The effect of screw rod 52 is that lock core 5 is fixedly secured on bottom-plate body 1.

For antitheft catch 2 being moved automatically and driving hole 13 being covered, between antitheft catch 2 and bottom-plate body 1, also be provided with a torsion spring 3 when lock core driver blade 51 is taken down.Torsion spring 3 middle parts are fixed on the bottom-plate body 1, and the other end colludes on the corresponding hangers 22 in antitheft catch 2 sides.In the nature of things, owing to be in all the time and lock core driver blade 51 contact conditions under antitheft catch 2 normal conditions, the elastic force of torsion spring 3 should be limited to the degree that does not influence lock core driver blade 51 normal rotation.

When lock core 5 and lock core driver blade 51 were in the normal position, antitheft catch 2 withstood on the lock core driver blade 51 under torsion spring 3 elastic force effects.When lock core 5 and lock core driver blade 51 taken down, antitheft catch 2 moved under the effect of torsion spring 3 elastic force, and driving hole 13 is covered, and made the robber play antitheft effect with instrument from driving hole 13 control lock bodies 6.Certainly, antitheft catch 2 areas herein should enough make it greatly fully driving hole 13 to be covered.

The fixed head 4 of present embodiment is two blocks of parallel sheet materials that are installed on 1 liang of edge of bottom-plate body, is used for directly fixedly lock body 6.For the lock body that makes different size all can be installed on the bottom-plate body 1 by fixed head 4, in the middle of fixed head 4, have a breach 41.Breach 41 places are thinner, and fixed head 4 is divided into two parts, all have the rectangle adjustment hole 42 that is used to regulate fixed head 4 positions on every part.When changing the lock body 6 of different size, can exert all one's strength gently is fractured into symmetrical two with fixed head 4 from breach 41, regulates fixed heads 4 by adjustment hole 42 again, makes fixing hole 43 positions on the fixed head 4 corresponding with fixing hole 61 positions on the lock body 6.

Claims

1. the antitheft base plate of a rim lock, be installed between Door lock (6) and the door, it is characterized in that: comprise bottom-plate body (1), Door lock and lock core (5) are installed on the bottom-plate body both sides respectively, on bottom-plate body, have a driving hole (13), be interspersed in the driving hole elastic body (3) that an antitheft catch (2) also is installed on the bottom-plate body surface and forces antitheft catch trend driving hole to move with the lock core driver blade (51) of lock core interlock.

2. the antitheft base plate of rim lock according to claim 1, it is characterized in that: described antitheft catch area is slightly larger than the driving hole area.

3. the antitheft base plate of rim lock according to claim 2, it is characterized in that: described elastic body is a torsion spring or elastic sheet metal, and elastic body one end is fixed on the bottom-plate body, and the other end presses closer on antitheft catch.

4. the antitheft base plate of rim lock according to claim 3, it is characterized in that: on antitheft catch, have sliding tray (21), be provided with to cooperate at the bottom-plate body correspondence position and be beneficial to that antitheft catch is directed to slide and prevent stop screw (18) and the dog screw (16) that antitheft catch comes off with sliding tray.

5. the antitheft base plate of rim lock according to claim 4 is characterized in that: be used for fixing the screw hole (17) that lock core is installed on the screw rod on the bottom-plate body also having on the bottom-plate body.

6. according to the antitheft base plate of each described rim lock in the claim 1 to 5, it is characterized in that: two fixedly fixed heads of lock body (4) also are installed on bottom-plate body, on fixed head, have the rectangle adjustment hole (42) of being convenient to regulate the fixed head position.

7. the antitheft base plate of rim lock according to claim 6 is characterized in that: have the breach (41) that makes fixed head be easy to fracture in the middle of the described fixed head.