CN2180737Y - Double-head three-bolt door lock with alarm bell - Google Patents

Abstract

The utility model relates to a double-head three-bolt door lock with an alarm bell, which is used for theft prevention, alarm, and a guest answering door bell. The utility model comprises a lock housing, a lock head inserted in a door plate, a locking head on the lock housing, a cylindrical double lock bolt and an oblique bolt, wherein, an electronic device which is connected with a power supply and is composed of a CMOS integrated package for a music door bell and a CMOS integrated package for alarm, the CMOS integrated package for a music door bell is controlled by a door bell button installed on the door plate, and the CMOS integrated package for alarm is synergistically controlled by the cylindrical double lock bolt and the oblique bolt; the two integrated packages are connected with a common loudspeaker. The door lock not only has the safety function but also has the function of the door bell and the alarming function.

Description

Double-head three-bolt door lock with alarm bell

The utility model relates to a kind of safety door latch, particularly a kind of twin-lock head three tongue Warning door bells lock that has burglar alarm and answer objective doorbell effect.

In the prior art, a kind of commercially available twin-lock head three tongue safety door latchs are arranged, it has a tapered end that is on the tapered end that is inserted in the door-plate and the lock housing in the door, settles cylindrical double lock tongue and an oblique tongue in the lock housing.When locking a door, changeed for two weeks clockwise outdoors key being inserted tapered end, cylindrical double lock tongue stretches out and puts in place and lock a door, and the people in door does not have key can not open door; When opening the door, rotated counterclockwise for two weeks outdoors key being inserted tapered end, then cylindrical double lock tongue withdrawal original position, key circles again, and then tiltedly tongue is also withdrawn, and door is promptly opened.In door, key is inserted tapered end, its action and act on similar, direction of rotation only.Will open the door in door, key has changeed makes cylindrical double lock tongue withdrawal original position two weeks, does not revolve for the 3rd week, as long as the oblique tongue handle of pulling also can open the door.This commercially available twin-lock head three tongue safety door latchs are safe and reliable, also the robber can be locked in door.But this safety door latch can not play burglar alarm and answer objective doorbell effect.

The purpose of this utility model is to provide a kind of improved safety door latch, and it not only has the function of twin-lock head three tongue safety door latchs, and can play burglar alarm and answer objective doorbell.

For achieving the above object, the utility model adopts following technical proposals: the utility model is the same with prior art to include lock housing, be inserted in tapered end and the tapered end on the lock housing in the door-plate, be placed in cylindrical double lock tongue and oblique tongue in the lock housing.Be characterized in: in lock housing, be equipped with and connect electronic installation power supply, that form by music door-bell CMOS integrated package and warning CMOS integrated package, wherein music door-bell CMOS integrated package is by the bell button control that is installed on the door-plate, warning CMOS integrated package is by cylindrical double lock tongue and oblique tongue Collaborative Control, and two CMOS integrated packages connect a shared loudspeaker.Its operating principle is: it is constant that the utility model keeps former twin-lock head three tongue safety door lockworks, therefore has original insurance security function; Added power supply, bell button, music door-bell CMOS integrated package and loudspeaker constitute door, and the guest presses bell button, and then loudspeaker sends music door-bell sound; The warning CMOS integrated package and the loudspeaker of added power supply, cylindrical double lock tongue and oblique tongue Collaborative Control constitute guard against theft and alarm system, when the robber forces open the door, touch oblique tongue, this moment, cylindrical double lock tongue was not shifted, cause warning CMOS integrated package to connect power supply, then loudspeaker sends chimes of doom; And owner is when turning the key in the lock, cylindrical double lock tongue earlier inwardly withdrawal oblique tongue is moved, just can not trigger warning.

The utility model compared with prior art, have following conspicuous advantage: the utility model not only has the insurance security function of twin-lock head three tongue safety door latchs, and have burglar alarm and a function that should objective doorbell, make insurance safety door latch, burglar alarm and answer three of objective doorbells to combine together, compact conformation, function is complete.

The drawing of accompanying drawing is described as follows:

Fig. 1 is an internal construction schematic diagram of the present utility model.

Fig. 2 is a profile elevation of the present utility model.

Fig. 3 is the right view of Fig. 2.

Fig. 4 is that the utility model is installed on the door time outside view.

Fig. 5 is a circuit diagram of the present utility model.

An optimum implementation of the present utility model is: referring to Fig. 1 and Fig. 4, this twin-lock head three tongue Warning door bells lock adopts commercially available twin-lock head three tongues insurance safety door latch to improve, the frame for movement that keeps original door lock is constant, connects electronic installation 22 power supply 6, that be made up of music door-bell CMOS integrated package and warning CMOS integrated package and be equipped with in lock housing 1.Wherein music door-bell CMOS integrated package is by bell button 27 controls that are installed on the door-plate, and warning CMOS integrated package is by cylindrical double lock tongue 11 and oblique tongue 14 Collaborative Control, and two CMOS integrated packages connect a shared loudspeaker 4.Music door-bell CMOS integrated package adopts commercially available TM802C type CMOSKE integrated package, and warning CMOS integrated package adopts commercially available TM806A type CMOSKD integrated package.Referring to Fig. 5, above-mentioned electronic installation is by power supply 6, door interlock switch K2, cylindrical double lock tongue and tiltedly the collaborative K switch 1 of tongue, TM806A type warning CMOSKD integrated package, TM802C type music door-bell CMOSKE integrated package, two diode D1, D2, two resistance R 1, R2, two triode G1, G2, capacitor C and loudspeakers 4 constitute.Wherein doorbell switch K2 is mounted in the bell button 27 on the door-plate, and cylindrical double lock tongue is to be made of with the pin 15 that oblique tongue 14 is fixedlyed connected by oblique tongue rod two conductive reeds 13 that cylindrical double lock tongue 11 is fixedlyed connected with folder cloth offset plate 12 by bolt plate 9 with the collaborative K switch 1 of oblique tongue.Its operating principle is: when the guest presses bell button 27 on the door-plate, K switch 2 closures, then TM802C type music door-bell CMOSKE ic circuit and power supply 6 are connected, and the output signal of this integrated package starts loudspeaker 4 via the amplifying circuit of two triode G1, G2 compositions and sends the music door-bell sound.After owner goes out to lock a door, cylindrical double lock tongue 11 and oblique tongue 14 all stretch out and put in place, pin 15 on the oblique tongue rod of at this moment oblique tongue 14 is near conductive reeds 13, oblique tongue 14 is moved in shrinking back, then driving pin 15 immediately moves and makes two conductive reed 13 closures, it promptly is the K1 switch closure, TM806A type warning CMOSKD ic circuit and power supply 6 are connected, and the output signal of this integrated package starts loudspeaker 4 via the amplifying circuit of two triode G1, G2 compositions and sends alarm sound.Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, if owner turns the key in the lock, key is inserted tapered end 26 on the door-plate or the tapered end 24 on the lock housing, screw key, then drive knob 20 and on finger 19 rotation, the teeth groove plate 8 that finger 19 is stirred on the slide plate 18 moves, and teeth groove plate 8 is fixed into one with bolt plate 9 and cylinder shape lock tongue 11, thereby also drives cylinder shape lock tongue 11 and move.Teeth groove plate 8 can be resetted by spring 7.When owner's screw key two during week, cylinder shape lock tongue 11 is fully retracted in the lock housing 1, makes conductive reed 13 away from pin 15, and owner is one week of screw key again, and then finger 19 is stirred shift fork 17 and made in the oblique tongue 14 indentation lock housings 1, and then door is opened and do not touched warning circuit and report to the police.Owner is in the room inward, can only key be rotated for two weeks, makes in the cylinder shape lock tongue indentation lock housing 1, pulls the oblique tongue handle 16 on the lock housing 1 then and promotes the oblique tongue rod of oblique tongue 14, makes in the oblique tongue 14 indentation lock housings 1 and can open the door.Insure knob 2 on the lock housing in addition, when oblique tongue 14 is fully retracted in the lock housing 1, rotation insurance knob 2, then drive insurance slide block 24 and insurance locating piece 5, insurance locating piece 5 moves down, and its afterbody blocks the convex shoulder place, oblique tongue rod rear end of oblique tongue 14, and then tiltedly tongue no longer stretches out lock housing 1 outside.When insurance locating piece 5 resetted by spring 21, tiltedly tongue 14 stretched out lock housing 1 outside by the elastic force of the spring 23 of its oblique tongue rod rear end.The base plate 3 of lock housing 1 below it fixed with the door plate.Corresponding to the hole 25 that amplifies, loudspeaker 4 sound producing head places, be used to propagate the sound of loudspeaker on lock housing 1 rear end face.

Claims (4)

1, a kind of twin-lock head three tongue Warning door bells lock that is used for burglar alarm and answers objective doorbell effect, comprise lock housing (1), be inserted in tapered end (26) in the door-plate and the tapered end (24) on the lock housing, be placed in cylindrical double lock tongue (11) and oblique tongue (14) in the lock housing, it is characterized in that being equipped with in the lock housing (1) and connect power supply (6), the electronic installation of forming by music door-bell CMOS integrated package and warning CMOS integrated package (22), wherein music door-bell CMOS integrated package is by bell button (27) control that is installed on the door-plate, warning CMOS integrated package is by cylindrical double lock tongue (11) and oblique tongue (14) Collaborative Control, and two CMOS integrated packages connect shared loudspeakers (4).

2, twin-lock head three tongue Warning door bells lock according to claim 1 is characterized in that music door-bell CMOS integrated package is commercially available TM802C type CMOSKE integrated package, and warning CMOS integrated package is commercially available TM806A type CMOSKD integrated package.

3, twin-lock head three tongue Warning door bells lock according to claim 2 is characterized in that electronic installation (22) is made of power supply (6), doorbell switch (K2), cylindrical double lock tongue and the collaborative switch (K1) of oblique tongue, TM806A type warning CMOSKD integrated package, TM802C type music door-bell CMOSKE integrated package, two diodes (D1, D2), two resistance (R1, R2), two triodes (G1, G2), electric capacity (C) and loudspeaker (4).

4, twin-lock head three tongue Warning door bells lock according to claim 3, it is characterized in that doorbell switch (K2) for being installed in the bell button (27) on the door-plate, cylindrical double lock tongue is to be made of with the pin (15) that oblique tongue (14) is fixedlyed connected by oblique tongue rod two conductive reeds (13) that cylindrical double lock tongue (11) is fixedlyed connected with folder cloth offset plate (12) by bolt plate (9) with the collaborative switch (K1) of oblique tongue.

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