CN2214996Y

CN2214996Y - Theft-proof alarm door lock

Info

Publication number: CN2214996Y
Application number: CN 94222060
Authority: CN
Inventors: 叶允敏
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-09-17
Filing date: 1994-09-17
Publication date: 1995-12-13
Anticipated expiration: 2004-09-17

Abstract

The utility model relates to a theft-proof alarm door lock, comprising a lock head, a lock casing (7), a combination set bar, a combination oblique set bar, a battery box (21), an alarm circuit board (8), a loudspeaker, etc. The combination set bar has a pair of metal plates (5) and (16) which form an alarming trigger switch. The contact (26) on the combination oblique set bar and the other contact plates An and B form the contact of an alarming trigger switch. A metal plate (6) covers the loudspeaker mouth. The metal plate (6) and the lock casing (7) form an alarming trigger switch. The casing (7) has a combination fixing screw, and the metal plate (9) and a base plate (30) form an alarming trigger switch. The advantages are that it is able to alarm if the loudspeaker is broken or the door is opened in the room, and it is also able to alarm when contacting with or moving the set bar (2) and the oblique set bar (13) and opening the lock casing (7).

Description

Theft-proof alarm door lock

The utility model relates to burglar-proof alarm door lock.

Existing multiple burglar-proof alarm door lock, Chinese patent ZL93212749.5 system is wherein a kind of, by tapered end, housing, dead bolt composite member, tiltedly tongue composite member, battery case, warning circuit plate, loudspeaker etc. constitute, dead bolt, tiltedly positions such as tongue, housing have the alarm switch contact, even but its weak point is the displacement of 1. keepers can not report to the police yet 2. dead bolts, when tiltedly tongue has big slightly displacement as could be reported to the police when being struck by sled 3. loudspeakers this can alarm 4. robbers enter the room in being damaged not that alarm free reacts when unblanking to escape after committing a crime from other modes.

The purpose of this utility model is to avoid above-mentioned shortcoming and provides a kind of to touch or can report to the police keeper, the burglar-proof alarm door lock that also can report to the police in positions such as loudspeaker when the oblique tongue of fine motion, dead bolt.

The purpose of this utility model can reach by following technical solution: by tapered end, lock body, keeper is formed the utility model, lock body is by lock housing, the combination dead bolt, make up oblique tongue, battery case, the warning circuit plate, formations such as loudspeaker, tapered end connects dead bolt by water caltrop, the combination dead bolt is by dead bolt, metal column, sheet metal, insulating frame, compositions such as spring, metal column places the slotted hole of insulating frame, double lock tongue places the both sides of insulating frame, metal column one end is with spring, spring withstands sheet metal, the metal column other end withstands the collets in the keeper, the slotted hole Qian of insulating frame also has a sheet metal, two sheet metals constitute the alarm actuating contact switch, make up oblique tongue by oblique tongue, contact-making switch, compositions such as metal contact, tiltedly there is the groove that is complementary with metal contact the back of tongue position, metal contact one end is in contact-making switch, scalable, can constitute the alarm actuating contact switch with another metal contact in the contact-making switch, speaker port covers sheet metal, sheet metal has several holes, the position in hole misplaces mutually with lock housing orifice, place the insulation interlayer between sheet metal and the lock housing body, sheet metal and lock housing body constitute the warning trigger switch, the combination fixed screw is by screw, nut, spring, insulated column, compositions such as sheet metal, insulated column has a deep hole, spring is placed in one, screw passes spring, insulated column, nut, base plate, fixed head, insulated column is embedded in the dovetail groove of lock housing body, base plate and sheet metal constitute the warning trigger switch, a trigger board (32) is mounted on lock housing (7) one sides, conduction region (19) is arranged, the same dead bolt of conduction region (19) (2), tiltedly tongue (13) constitutes the warning trigger switch.

Advantage of the present utility model: have can report to the police when multi-functional multi-section position warning function 1. loudspeakers self are damaged 2. from indoor open the door to report to the police 3. touch or the fine motion dead bolt, tiltedly tongue can be reported to the police and 4. can be reported to the police when opening lock housing.

Below in conjunction with accompanying drawing the utility model is described in detail:

Fig. 1 is that the utility model structure is always schemed

Fig. 2 is the lock housing lateral plan that is pasted with trigger board

Fig. 3 is a combination fixed screw longitudinal section

Fig. 4 is the speaker port longitudinal section

Fig. 5 is the warning circuit schematic diagram

As Fig. 1. shown in, the utility model comprises tapered end (22), lock body, keeper formations such as (1), lock body is by housing (7), the combination dead bolt, make up oblique tongue, battery case (21), warning circuit plate (8), formations such as loudspeaker, tapered end (22) connects dead bolt (2) by water caltrop (19), the combination dead bolt is by dead bolt (2), metal column (18), insulating frame (25), spring (15), sheet metal (3) (5) compositions such as (16), double lock tongue (2) is garden shape or rectangle etc., with garden shape is good, sheet metal (3) (5) (16) is with copper, iron material is made, with copper is good, metal column (18) places the slotted hole of insulating frame (25), double lock tongue (2) places the both sides of insulating frame (25), metal column (18) one ends are with spring (15), spring (15) withstands sheet metal (3), when tapered end (22) makes dead bolt (2) go up second gear by water caltrop (19) rotation, double lock tongue (2) enters in the keeper (1), the other end of metal column (18) withstands the collets (17) in the keeper (1), sheet metal (3) contacts with sheet metal (5) on the insulating trip (4), reason such as prized when collets (17) because of keeper (1) and caused displacement, metal column (18) is subjected to the elastic force effect of spring (15), the same sheet metal of one end (16) is connected, thereby two contact metal sheets (5), (16) connect, power supply is promptly logical, the loudspeaker sounding alarm.

Making up oblique tongue is made up of oblique tongue (13), contact-making switch (14), metal contact (26) etc., tiltedly there is the groove that mates with contact (26) at tongue (17) rear portion, metal contact (26) one end devices are in contact-making switch (14), but extended indentation, constitute the warning trigger switch with another sheet metal in the contact-making switch (14), when oblique tongue (13) when slightly displacement being arranged, contact (26) indentation contact-making switch (14), another sheet metal contact in the same contact-making switch of contact (26) (14), power connection.

Trigger board (32) is formed by the printed circuit board (PCB) etching, the centre has the sky frame, can allow dead bolt (2), oblique tongue (13) stretch out, this plate is mounted on lock housing one side, (33) (34) (35) are etched into insulation tank, and (19) are conduction region, and (20) are for being embedded in the sheet metal in the insulating frame (25), (21) be battery case, loudspeaker sounding alarm when metal object insertion crack between a door and its frame is communicated with the same conduction region of dead bolt (2) (19).

As shown in Figure 4, cover sheet metal (6) at the loudspeaker Qian, sheet metal (6) has several holes, the position in hole is with the dislocation of lock housing body (7) hole, and sheet metal (6) constitutes the alarm actuating contact switch with lock housing body (7), and placement insulation interlayer (31), interlayer (31) are made for insulation materials between sheet metal (6) and the lock housing (7), when metal object contacts lock housing (7), sheet metal (6) simultaneously, sheet metal (6) and lock housing are connected, power connection then, loudspeaker sounding.

As shown in Figure 3, the combination fixed screw, be used for fixing lock housing body (7) and fixed head (29), by screw (28), nut (27), spring (24), insulated column (10), sheet metal formations such as (9), insulated column (10) has deep hole, spring (24) is placed in one, screw thread (28) passes spring (24), and nut (27), base plate (30), fixed head (29), insulated column (10) move down, the same base plate of sheet metal (9) (30) contact, power connection, the loudspeaker sounding alarm.

As shown in Figure 5, the control utmost point of controllable silicon CT connects the A point, and anode connects positive source, negative electrode connecting resistance R ₁, R ₁Another termination capacitor C ₁, C ₁The base stage of another termination transistor BG1, the emitter stage of BG1 connects the base stage of transistor BG2, the emitter stage of BG2 connects power cathode, resistance R ₂Connect the silicon controlled negative electrode, another termination BG1, the colelctor electrode of BG2, the emitter stage of BG3 connects power cathode, the power input of IC connects silicon controlled negative electrode and anode, the base stage of the output termination transistor BG3 of IC, the emitter stage of BG3 connects power cathode, colelctor electrode connects the base stage of transistor BG4, the collector plate of BG4 connects the silicon controlled negative electrode, emitter stage connects loudspeaker, another termination power cathode of loudspeaker, sheet metal (5), (6), (20), sheet metal in the trigger switch (14), conduction region (19) on lock housing body (7) the one side trigger board (32) etc. connects A point, sheet metal (16), lock housing body (7), base plate (3), oblique tongue (13), dead bolt (2) contact B.The A of warning circuit, B point is in off-state at ordinary times, and controllable silicon CT ends, when A, B connection, and controllable silicon CT conducting, transistor BG1, BG2 are by C ₁, R ₁Charging obtains the rapid conducting of bias current, R ₂, BG2 becomes the DC channel of controllable silicon CT, CT, BG2 remain IC and low-frequency amplifier circuit provides normal working voltage, promotes the loudspeaker sounding alarm by the signal of IC output through BG3, BG4 power amplification.Along with the RC charging interval increases, capacitor C ₁The voltage at two ends constantly increases, and works as C ₁DC channel end, alarm stops to report to the police automatically, the delayed alarm time determines about 10 minutes by RC.(12) be cell switch, (11) are the joint defence socket.

Claims

1, a kind of burglar-proof alarm door lock, by tapered end, lock body, keeper compositions such as (1), lock body is by lock housing body (7), the combination dead bolt, make up oblique tongue, battery case (21), warning circuit newspaper (8), formations such as loudspeaker, tapered end connects dead bolt by water caltrop (19), it is characterized in that: the combination dead bolt is by dead bolt (2), metal column (18), sheet metal (3), (5), (6), insulating frame (25), spring compositions such as (15), metal column (18) places the slotted hole of insulating frame (25), double lock tongue (2) places the both sides of insulating frame (25), metal column (18) one ends are with spring (15), spring (15) withstands sheet metal (3), metal column (18), the other end withstands the collets (17) in the keeper (1), the slotted hole mouth of insulating frame (25) also has a sheet metal (16), sheet metal (16), (5) constitute the warning trigger switch, make up oblique tongue by oblique tongue (13), contact-making switch (14), metal contact compositions such as (26), metal contact (26) one ends are in contact-making switch (14), scalable, constitute the alarm actuating contact switch with another metal contact in the contact-making switch (14), tiltedly there is the groove that is complementary with contact tongue (13) rear, speaker port covers sheet metal (6), sheet metal (6) has several holes, the position in hole misplaces mutually with locking shell hole, place insulation interlayer (31) between sheet metal (6) and the lock housing (7), sheet metal (6) constitutes the warning trigger switch with lock housing (7), the combination fixed screw is by screw (28), nut (27), spring (24), insulated column (10), sheet metal compositions such as (9), insulated column (10) has a deep hole, spring (24) is placed in one, screw (28) passes spring (24), insulated column (10), nut (27), base plate (30), fixed head (29), insulated column (10) is embedded in the dovetail groove of lock housing body (7), base plate (30) constitutes the warning trigger switch with sheet metal (9), trigger board (32) is mounted on lock housing (7) one sides, conduction region (19) is arranged, the same dead bolt of conduction region (19) (2), tiltedly tongue (13) constitutes the warning trigger switch.