CN2642951Y

CN2642951Y - Safety door lock

Info

Publication number: CN2642951Y
Application number: CN 03231681
Authority: CN
Inventors: 刘跃华
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-02
Filing date: 2003-06-02
Publication date: 2004-09-22
Anticipated expiration: 2013-06-02

Abstract

A security door lock is capable of monitoring the real and false key. A set of light guiding boards and springs are mounted on a common lock core spring, the photoelectric elements are mounted on both sides of a set of light guiding boards, the light guiding board is made into a cuboids shape, which is provided with a via hole in a central part, and the light guiding board can synchronously move along with the lock core spring under the action of the spring, but can not rotate. The design of the utility model is a door lock device capable of monitoring the real and false key, which provides the security door lock control system with the high precision electrical signals. The electrical signals can represent the position of the spring inside the lock, through the analysis treatment or the logic treatment of the electrical signals, the real key and the false key can be identified.

Description

Safety door lock

Affiliated technical field: the present utility model relates to a kind of Safety door lock of monitoring true and false key, uses the amount of movement that photovoltaic principals directly detects the lock core marble position.

Background technology: known Safety door lock does not relate to the Photoelectric Detection of the interior LGP of application lock as light path of light at present, does not have to adopt yet and directly detects the monitoring device that true and false key is monitored in the lock core marble position.

Summary of the invention: in order to overcome indirect position probing additional driving error that exists and the low deficiency of logical type Photoelectric Detection discrimination of having only logical light, shading two states, this novel invention provides the new construction of the true and false key of monitoring to be: employing and the close-connected LGP of lock core marble are as passage of light, the light intensity that light resistor receives is directly related with lock core marble position amount of movement, be that the resistance value size changes the discrimination height with the pellet shot from a slingshot displacement is related.

Apparatus structure is as follows: order is installed LGP, spring and LGP box on the pellet shot from a slingshot of common lock core, the through hole at LGP middle part is a passage of light, LGP is shaped as cuboid, four vertical limits are by the internal construction guiding of LGP box, can only move up and down with the action of pellet shot from a slingshot separately, can not rotational angle.Unthreaded hole position on the position of opening of each LGP, the luminous tube on both sides, light resistor position and the dividing plate is the reference position with true key unlocking to all being in straight line all.During no unlocking action, spring presses down LGP and pellet shot from a slingshot, the stuck lock core of pellet shot from a slingshot, and the unthreaded hole dislocation, and be in the shading state.

This novel invention provides the simulation that contains true and false key information electric weight for the electric-control system of Safety door lock, electric-control system carries out comprehensive analysis processing with the electrical analogue amount of this Photoelectric Detection from the lock core marble displacement with the electric switch amount that detects from unlocking action, discern true and false key, carry out and prevent opening and reporting to the police, perhaps remove warning, allow to unblank.

Description of drawings: accompanying drawing is the structural representation that monitoring system and common lock core cooperatively interact and install, and Fig. 1 is lock core radial section figure, and Fig. 2 is the lock core axial section, and the each several part title of accompanying drawing is as follows:

1) lock body 2) light resistor 3) LGP 4) dividing plate

5) spring 6) luminous tube 7) go up and organize pellet shot from a slingshot 8) pellet shot from a slingshot

9) lock core 10) LGP box 11) key

Specific embodiments: as can be known by Figure of description, LGP box (10) is installed on top at common lock body (1), its inside is then in lock core (9), last group of pellet shot from a slingshot (7) gone up order LGP (3) and spring (5) is installed, the through hole at each LGP (3) middle part is as passage of light, vertical and the parallel mechanism that LGP box (10) is inner, the space and the precision of LGP (3) straight-line displacement of cuboid have been guaranteed, dividing plate (4) in the LGP box (10) is spaced from each other each LGP, the light resistor (2) on unthreaded hole on the dividing plate (4) and both sides and luminous tube (6) light path in alignment, LGP (3) is in the LGP box, can only do synchronous displacement with moving axially of pellet shot from a slingshot separately, can't swing and rotate.Determining of unthreaded hole position is during with true key unlocking, it is theoretical foundation that the unthreaded hole of the unthreaded hole of luminous tube (6), dividing plate (4), LGP (3) and light resistor (2) become the straight line light path, so under no unlocking condition, spring (5) presses down LGP (3) and last group of pellet shot from a slingshot (7) and pellet shot from a slingshot (8), the stuck lock core of pellet shot from a slingshot (8) (9), the unthreaded hole dislocation is in the shading state.

Claims

1, a kind of safety lock that the true and false key function of monitoring is arranged, increasing by one group of middle part on common lock core marble has the LGP of through hole, at LGP top dress back-moving spring, it is characterized in that: LGP closely is connected with the pellet shot from a slingshot formation by spring pressure, and LGP is with the synchronization action seamlessly that moves up and down of pellet shot from a slingshot.

2, according to claim 1, it is characterized in that: use on the lock core marble passage of light of the LGP of through hole as Photoelectric Detection is installed, under no unlocking condition, each LGP through hole staggered positions, light path is blocked; During true key unlocking, the through hole of each LGP and the photoelectric cell on both sides are in the straight line position.

3, according to claim 1, it is characterized in that: the LGP of one group of monitoring usefulness, can not be less than 2, by the dividing plate on the LGP box it is separated between the LGP, the light path through hole on the dividing plate and the photoelectric cell on both sides are in line.

4, according to claim 1, it is characterized in that: common lock core go up the group pellet shot from a slingshot and LGP can be split, also can be disjunctor, the planform of LGP is not the single cylindrical body, can move axially and can not swing and rotate with pellet shot from a slingshot.