CN101329807A - Electronic alarm - Google Patents
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- CN101329807A CN101329807A CNA2008100859804A CN200810085980A CN101329807A CN 101329807 A CN101329807 A CN 101329807A CN A2008100859804 A CNA2008100859804 A CN A2008100859804A CN 200810085980 A CN200810085980 A CN 200810085980A CN 101329807 A CN101329807 A CN 101329807A
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Abstract
The invention discloses an electronic alarm which is used for earthquake or burglar-proof alarm. The electronic alarm comprises a shell, a loudspeaker (2), an alarm lamp (3), a sensor (6), a bracket (9), batteries (10), a control circuit, a reset circuit and a sound circuit; the control circuit is a stimulation silicon controlled circuit which consists of triodes and resistors; the circuit reset adopts the modes of a base electrode and an emitter of a short-circuit transistor V2; the sound circuit consists of a sound integrated circuit and the loudspeaker (2); the ball-shaped shell consists of an upper spherical cap (1) and a lower spherical cap (7) and a printed circuit board (4) is fixed inside the upper spherical cap (1); the sensor (6) is vertically installed on the printed circuit board (4), and after the series connection with a resistor R3, is connected with the emitter of a transistor V1 and the base electrode of the transistor V2; the lower spherical cap (7) is provided with a concave pit (8), and the upper spherical cap (1) and the lower spherical cap (7) are integrated at a connection part (11) by screw; the trigger terminal of the sound integrated circuit is communicated with the anode of a power supply; an electronic switch or a button switch of touch contactors (5 and 12) is adopted in the reset circuit. The device can alarm in time and in a long term and is safe, convenient and water-proof.
Description
Technical field
The present invention relates to a kind of electronic alarm device, especially relate to a kind of electronic alarm that becomes by insulation crust, stand by lamp, sensor, battery, loudspeaker, control circuit and sound circuit bank.
Background technology
Earthquake takes place often very unexpected, and present earthquake prediction technology prematurity still.In a single day earthquake takes place when people sleep, and people at first need to wake up and judge whether to take place earthquake, and at this moment, it is just very necessary to possess an effective warning device.Well-known traditional earthquake alarming device generally is divided into organized broadcast type and reports to the police, and for example is similar to the warning of air defence warning device; And the objects such as vial that stand upside down of use among the people are sounded etc. because of being given a shock to drop to the ground.It is ageing not strong that broadcast type is reported to the police, and relatively lags behind, and the back some time takes place in big often shake, could report to the police, and alarm sound also is not enough to wake up heavy sleepers, the while poor reliability after passing to some place; And use vial among the people etc. can only send disposable sound, prompting dynamics and frequency are obviously not enough, there is not follow-up warning effect after the shake, because use not enough safe ready, earthquake seldom takes place in addition, and just after earthquake taking place, just the short time is used for monitoring aftershock in general family, time one is of a specified duration, just throws aside.
Phase in " electronics newspaper " 28 days the 35th August in 2005 14 editions has published and has been entitled as " multi-functional cut-off type wired alarming device " literary composition, has provided the circuit diagram of an electronic alarm in the literary composition.The control circuit of this alarm mainly constitutes the simulation controllable silicon by 2 conduction opposite polarity positive-negative-positives and NPN type triodes and 3 resistance, power electronic switch as the alarm sound circuit, the quiescent current of stand-by state is very little, can use dry cell to wait for for a long time; Trigger the back alarm and send the alarm sound music; It ends for control after simulation controllable silicon conducting, also and connect 1 cutoff switch, clicks this switch between the base stage of NPN triode and emitter, can close alarm sound.Send the music IC circuit of alarm sound, have positive-negative power input end, 2 output terminals and 1 trigger end.In addition, also have some other elements to form alarm circuit with said elements.This alarm integrated circuit design shows complicated slightly and has only provided circuit diagram; Also design has power switch, has reduced reliability; The control mode of cutoff switch also has improved necessity.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of electronic alarm.This device is reported to the police in time and is continued, and wake-up effect is good, can test its validity at any time, and reliable durable is also reusable, is convenient to permanent safely monitor earthquake or steals feelings.
In order to solve the problems of the technologies described above, electronic alarm of the present invention comprises shell, loudspeaker, stand by lamp, sensor, carriage, battery, control circuit, reset circuit and the sound circuit of insulation; Control circuit is by triode V1, V2, and resistance R 1, R2, R4 and capacitor C 1 connect to form; Wherein the positive pole of the emitter of triode V1 and battery joins, its emitter and base stage parallel resistance R1, and its base stage is also joined with resistance R 2 one ends, and its collector is as the output terminal of power supply; The collector of the other end of resistance R 2 and triode V2 joins, and the emitter of triode V2 connects battery cathode, and an end of its base stage and resistance R 4, capacitor C 1 joins; The collector of the other end of resistance R 4 and triode V1 joins; The other end and the battery cathode of capacitor C 1 are joined; Circuit reset adopts the base stage of short circuit triode V2 and the mode of emitter; Sound circuit is made up of sound integrated circuit (IC) 1, loudspeaker 2 and capacitor C 2; Two output termination loudspeakers of sound integrated circuit (IC) 1, the positive and negative two ends of its power supply are in parallel with capacitor C 2; Stand by lamp 3 is with also in parallel with capacitor C 2 after resistance R 5 is connected; Capacitor C 2 two ends are connected to the collector of triode V1 and the negative pole of battery respectively.The shell of electronic alarm insulation is made spheroid; Spheroid is made up of last spherical crown and following spherical crown, becomes a spheroid after the two spherical crown bottom surface relative bondings; Last spherical crown is positioned at spheroid top, is semi-spherical shape, internal fixation fitting printed circuit board and loudspeaker; The fixing back of printed circuit board (PCB) is parallel with last spherical crown bottom surface; Sensor vertically is installed on the printed circuit board (PCB); Following spherical crown is positioned at the spheroid bottom, is semisphere, and the centre bit of labeling is equipped with an inside recessed pit; Sensor is connected with resistance R 3, forms trigger circuit; The trigger circuit two ends are connected to the base stage of emitter and the triode V2 of triode V1 respectively; The trigger end of sound integrated circuit (IC) 1 directly is communicated with its positive source incoming end.
Stand by lamp is installed on the printed circuit board (PCB), and is closed in the spherical crown; The corresponding employing transparent material of last spherical crown is made.
Be processed with corresponding negative and positive screw thread on interface one circle of each comfortable its joint portion of last spherical crown and following spherical crown, become a spheroid after spinning; Spread all over tiny conical papilla on the outside surface of last spherical crown and following spherical crown.
The battery flat of last spherical crown and battery near on spherical crown bottom surface place internal fixation together; The face that battery flat is connected with last spherical crown is for circular, and its diameter and last spherical crown interior diameter are clearance fit; Battery flat extends to down in the spherical crown.
There is the fluid sealant sealing frame joint of last spherical crown and loudspeaker; The position corresponding with loudspeaker has the sound conduction hole on the last spherical crown, and filtering layer is equipped with in the sound conduction hole; Loudspeaker adopts the water-resistant material vibrating diaphragm; Last spherical crown has O type ring shape waterproof sealing cushion rubber with the joint portion of following spherical crown.
Carriage is connected to form by a spherical crown and cone base.
Reset circuit is by triode V3, V4, and resistance R 6, R7 and two contact chips connect to form touching electronic switch; The base stage of the collector of triode V3 and triode V2 is joined, and the emitter of its emitter and triode V2 joins, and the collector of its base stage and triode V4 joins; The emitter of triode V4 is connected to the collector of triode V1, and an end of its base stage and resistance R 6 joins; The other end of resistance R 6 and a contact chip join; One end and another contact chip of resistance R 7 join, and the negative pole of the other end and battery joins; The outside surface of last spherical crown exposed two contact chips of fixing spaced apart; Contact chip is metal material.
Reset circuit can also adopt the push button reset switch, and its two ends are connected to base stage and the emitter of triode V2 respectively.Centre on the last spherical crown is fixed with spiral base, is rotary with screw rod in the hole of spiral base; Screw tip is processed with screw-driver slot, can spinning in and out; The screw rod other end is relative with the button of reset switch; Reset switch is installed on the one side of printed circuit board (PCB) in the face of screw rod,
Spiral base hole internal upper part and screw rod are near zero shape ring-type waterproof sealing cushion rubber is housed between the top.
Adopt above technical scheme, this electronic alarm is made spheroid, accepts with carriage, owing to spheroid rolls easily, so to rocking the comparison sensitivity.Take place that earthquake causes balls tumble or when carriage tumbles, sensor-triggered control circuit in the spheroid, control circuit is about to power connection and keeps on-state, gives stand by lamp and sound circuit supply, and electronic alarm promptly is in light and sound while alarm condition.Alarm sound is sharp-pointed and lasting, can also adopt voice, adds light, thus wake up with warning effect good.Because it is impaired that spheroid itself is difficult for relatively, just considered reliability and water proofing property when designing in addition, so, even if spheroid drops on the ground or by water logging, also can continue to report to the police.This device can reminds people when earthquake; Can indicating positions after earthquake, be convenient to rescue.Also can be without carriage, the flexible expansion purposes is used for family, office or automobile anti-theft alarm etc. with this electronic alarm.In addition, this device is handsome in appearance, and is safe and convenient to use, and power consumption is little, can put for a long time, helps very prepared ground monitor earthquake or steals feelings.For after whether false triggering or detected electrons alarm be working properly, can recover monitoring state easily, also be provided with the reliable resetting means of reset operation mode separately, can close alarm condition by resetting.Because this apparatus structure is simple, consumptive material is few, so produce, purchase with maintenance cost low.
Description of drawings
Be described in further detail below in conjunction with accompanying drawing and embodiments of the present invention:
Fig. 1 is the primary structure synoptic diagram that the reset circuit of electronic alarm adopts the touching electronic switch scheme.
Fig. 2 is the primary structure synoptic diagram that the reset circuit of electronic alarm adopts the reset switch scheme.
Fig. 3 is the circuit diagram that the reset circuit of electronic alarm adopts the touching electronic switch scheme.
Fig. 4 is the circuit diagram that the reset circuit of electronic alarm adopts the reset switch scheme.
In Fig. 3, Fig. 4, V1～V4 is a triode, and R1～R7 is a resistance, and C1, C2 are electric capacity, and IC1 is the sound integrated circuit, and D1 is a diode, and 2 is loudspeaker, and 3 is stand by lamp, and 6 is sensor, and 10 is battery, and 13 is reset switch, and 17 is charging socket.
Embodiment
Fig. 1～electronic alarm shown in Figure 4 comprises shell, loudspeaker 2, stand by lamp 3, sensor 6, carriage 9, battery 10, control circuit, reset circuit and the sound circuit of insulation; Control circuit is by triode V1, V2, and resistance R 1, R2, R4 connect to form analog thyristor circuit, and capacitor C 1 is anti-interference; Wherein the positive pole of the emitter of triode V1 and battery 10 joins, its emitter and base stage parallel resistance R1, and its base stage is also joined with resistance R 2 one ends, and its collector is as the output terminal of power supply; The collector of the other end of resistance R 2 and triode V2 joins, and the emitter of triode V2 connects battery 10 negative poles, and an end of its base stage and resistance R 4, capacitor C 1 joins; The collector of the other end of resistance R 4 and triode V1 joins; The other end of capacitor C 1 and battery 10 negative poles join.Short circuit once base stage and the emitter realization of triode V2 are adopted in resetting of control circuit; When sensor 6 is in steady state (SS), when just contact is in off-state in it, base stage and the emitter of short circuit triode V2, V2 is ended, and then triode V1 ends, promptly analog thyristor circuit ends, realization is to the reset operation of analog thyristor circuit, and circuit reset stops to report to the police; After short circuit was removed, analog thyristor circuit still was in cut-off state, and circuit enters monitored state.Sound circuit is made up of sound integrated circuit (IC) 1, loudspeaker 2 and capacitor C 2; Two exit points of sound integrated circuit (IC) 1 connect loudspeaker 2, and the positive and negative two ends of its power supply are in parallel with capacitor C 2.Stand by lamp 3 is with also in parallel with capacitor C 2 after resistance R 5 is connected; Capacitor C 2 two ends are connected to the collector of triode V1 and the negative pole of battery 10 respectively.In order to improve sensitivity, reliability and compatible extensions purposes, the shell of insulation is made spheroid; Spheroid is made up of last spherical crown 1 and following spherical crown 7, and two spherical crown bottom surfaces connect and are integrated; Two spherical crowns all can adopt flexible and have the plastic injection-moulded of suitable intensity and process; Also can adopt the timber system of waiting for bus to form.Last spherical crown 1 is positioned at spheroid top, is semi-spherical shape, internal fixation fitting printed circuit board 4 and loudspeaker 2; The hat bottom surface keeping parallelism of printed circuit board (PCB) 4 fixing its plate faces of back and last spherical crown 1; Last spherical crown 1 inside processes the bayonet socket and the platform of fixed printed circuit board 4 in the precalculated position.Following spherical crown 7 is positioned at the spheroid bottom, is semisphere, and outside surface can adopt several different methods landscaping treatments such as coating; In order to use electronic alarm spheroid, the centre bit of labeling to be equipped with an inside recessed pit 8 separately without carriage 9.Sensor 6 vertically is installed on the printed circuit board (PCB) 4; Sensor 6 can adopt mercury formula shock sensor, but mercury formula shock sensor by shell, 2 contacts that are positioned at shell and sealing in the enclosure free rolling mercury form; Sensor 6 also can adopt the pendulum shock sensor, pendulum can use one section flexible circuit conductor to connect one section copper post and make, flexible circuit conductor one end is welded on the printed circuit board (PCB) 4, an end points as sensor 6, the copper post keeps vertical free suspended state, the copper post is outward around a blister copper wire ring, blister copper wire ring and copper post are concentric circles, keep suitable distance therebetween, the supporting pins of blister copper wire ring is fixedly welded on the printed circuit board (PCB) 4, as another end points of sensor 6, is furnished with transparent protective shield outside the sensor 6; Sensor 6 is connected with resistance R 3, forms trigger circuit; The trigger circuit two ends are connected to the base stage of emitter and the triode V2 of triode V1 respectively.When the spheroid of electronic alarm is subjected to rocking, the mercury bead of sensor 6 inside or copper post move thereupon, connect two contacts of sensor 6, also just the positive pole of battery 10 is connected by the series circuit of sensor 6 and resistance R 3 and the base stage of triode V2, for triode V2 provides a bias current, make the V2 conducting; The V2 conducting makes triode V1 conducting, also is the analog thyristor circuit conducting, is stand by lamp 3 and sound circuit supply, begins to report to the police.After the triode V1 conducting, because the existence of backfeed loop R4 has kept its conducting state.The trigger end of sound integrated circuit (IC) 1 directly is communicated with its positive source incoming end, as long as supply with the IC1 power supply, just sounds; The sound integrated circuit could write different sound codes as required, for example: " earthquake! " wait voice or other sharp-pointed alarm song.
Stand by lamp 3 welded and installed and are closed in the spherical crown 1 on printed circuit board (PCB) 4, help waterproof.Stand by lamp 3 can cooperate resistance to form by several light emitting diodes; Stand by lamp 3 can use common red light emitting diodes, but the flash light emission diode of band flasher circuit in preferably using perhaps is common led designs flasher circuit.Last spherical crown 1 corresponding employing transparent material is made.If last spherical crown 1 adopts opaque material to make, perhaps outside surface adopts coating or parcel other materials to carry out landscaping treatment, then needs to install or reserve transparent fenestella, so that light can penetrate outside the spherical crown.
Be processed with corresponding negative and positive screw thread on interface one circle of last spherical crown 1 and following spherical crown 7 each comfortable its joint portion 11, become a complete spheroid after spinning; For the ease of when spinning and outward winding, gripping, spread all over tiny conical papilla on the outside surface of last spherical crown 1 and following spherical crown 7.The combination of spherical crown also can be adopted the interface that processes separately taking on interface one circle up and down, uses the mutual fastening combination of screw.
The battery flat of last spherical crown 1 and battery 10 near on place, spherical crown 1 bottom surface internal fixation together, the battery flat internal fixation is installed the anodal contact chip and the pagoda spring of negative pole, the lead-in wire of contact chip and pagoda spring is received corresponding contact on the printed circuit board (PCB) 4; The bilge face that battery flat is connected with last spherical crown 1 is for circular, and its diameter and last spherical crown 1 interior diameter are clearance fit, and purpose is when changing batteries for spherical crown under outwarding winding 7, to have bilge face to block parts, avoids breaking internal components and circuit; Battery flat extends to down in the spherical crown 7, and the opening surface of battery flat fetching battery is to following spherical crown 7.Such structure, following spherical crown 7 are without any line, and it is convenient to change battery; Simultaneously, the center of gravity of spheroid helps rolling than higher.
For anti-sealing enters in the ball, last spherical crown 1 has the fluid sealant sealing with the frame joint of loudspeaker 2, and last spherical crown 1 is equipped with O type ring shape waterproof sealing cushion rubber with the joint portion 11 of following spherical crown 7; In addition, position corresponding with loudspeaker 2 on the last spherical crown 1 has the sound conduction hole, and filtering layer is equipped with in the sound conduction hole, can stop silt; Loudspeaker (2) adopts the water-resistant material vibrating diaphragm.
Reset circuit shown in Figure 3 is by triode V3, V4, and resistance R 6, R7 and contact chip 5,12 connect to form touching electronic switch; The base stage of the collector of triode V3 and triode V2 is joined, and the emitter of its emitter and triode V2 joins, and the collector of its base stage and triode V4 joins; The emitter of triode V4 is connected to the collector of triode V1, and an end of its base stage and resistance R 6 joins; The other end of resistance R 6 and contact chip 5 join; One end and the contact chip 12 of resistance R 7 join, and the negative pole of the other end and battery 10 joins; The outside surface of last spherical crown 1 exposed fixed contact piece 5,12 spaced apart; Contact chip 5,12 is a metal material.When needs reset, put positive spheroid and keep steady state (SS), contact contact chip 5 and 12 simultaneously with hand, human body resistance is connected with resistance R 6, R7, and V4 provides bias current for triode, triode V4 conducting, and then make triode V3 conducting, and after the triode V3 conducting, base stage and the emitter of short circuit triode V2, circuit reset stops to report to the police; After hand was removed, circuit still ended, and entered monitored state.
Reset circuit can also adopt push button reset switch 13, and as shown in Figure 4, reset switch 13 two ends are connected to base stage and the emitter of triode V2 respectively.In order to improve reliability, screw-rod structure is adopted in the operation of reset switch 13; Centre on the last spherical crown 1 is fixed with spiral base 16, is rotary with screw rod 14 in the hole of spiral base 16; Screw rod 14 tops are processed with screw-driver slot 15, can use screwdriver or coin spinning in and out; Screw rod 14 other ends are relative with the button of reset switch 13; Reset switch 13 is installed on the one side of printed circuit board (PCB) 4 in the face of screw rod 14.In the time of need resetting, put positive spheroid and keep steady state (SS), precession screw rod 14 presses down the button of reset switch 13, closed reduction switch 13, i.e. and the base stage of short circuit triode V2 and emitter, circuit reset stops to report to the police; When outwards screwing out screw rod 14, discharge the button of reset switch 13, the contact of reset switch 13 disconnects, and circuit still ends, and enters monitored state.Around spacing collar that matches with the reset switch height of reset switch 13 covers, the maximum precession amount of restriction screw rod 14.
When adopting reset switch structure shown in Figure 2, for waterproof, spiral base 16 hole internal upper parts and screw rod 14 are near zero shape ring-type waterproof sealing cushion rubber is housed between the top.Near the position on top, processing one circle groove is adorned zero shape waterproof sealing cushion rubber in the groove on its face of cylinder in spiral base 16 holes; Screw rod 14 processes one section smooth face of cylinder that diameter equals the diameter of screw rod 14 lower part Bottom of Thread near top end, cooperates with zero shape waterproof sealing cushion rubber.
Reset circuit scheme according to adopting according to Fig. 3 or circuit design printed circuit board (PCB) 4 shown in Figure 4, is welded on element on the printed circuit board (PCB) 4; With lead the contact of the relevant solder joints of printed circuit board (PCB) 4 and loudspeaker 2, battery flat etc. is coupled together; Charging socket 17 is welded on the printed circuit board (PCB) 4, for waterproof, is stamped the fluid sealant lid on the hole of charging socket 17.Battery 10 can use rechargeable battery or dry cell.
After installing circuit component on the printed circuit board (PCB) 4 and connecting everywhere circuit, carry out electrical inspection earlier; After qualified, successively each parts is fixed on top spherical crown 1 inside, carries out water-proofing treatment, screw spherical crown 1 and following spherical crown 7, install and promptly finish.
This alarm ball can also be combined into electronic watch, little torch etc. as required.In the scheme for example shown in Figure 1, the appropriate location electronic watch of just can packing in last spherical crown 1, operations such as the time of the proof list spherical crown 7 of can outwarding winding down carries out; Scheme as shown in Figure 2 again, a switch and a white light emitting diode are installed in the appropriate location on last spherical crown 1, add a resistance, and said elements series connection circuit two ends, back are also received battery 10 two ends and are got final product; When needing illumination, precession screw rod 14, after reset switch 13 closures, this device just can use by the little torch of double as; Spheroid of this device or carriage 9 also can be transformed into other shape; Can also be without carriage 9, directly be placed in the spheroid of this electronic alarm on planar object, the liqueur glass or use such as in the drawer, in the toy and in the automobile.The different modes of accepting can have influence on the sensitivity that the electronic alarm spheroid is shaken or touches and rolls, and perhaps changes its purposes.Such variation is all in protection scope of the present invention.
During use, the spherical crown 7 of outwarding winding down, at the battery flat battery of packing into, electronic alarm is sound and light alarm simultaneously; Screw down spherical crown 7, the last spherical crown 1 of electronic alarm is placed the top, align and be placed on the carriage 9; What is called aligns, and by overlooking, Fig. 1 is exactly the center that loudspeaker 2 is remained on the electronic alarm spheroid, and Fig. 2 is exactly the center that screw rod 14 is remained on the electronic alarm spheroid; Carry out reset operation, electronic alarm promptly stops to report to the police, and enters monitored state.In case electronic alarm is rocked or fall down carriage 9, just can send alarm sound and light.If replacing battery, generation false touch are moved or regularly tested, then repeat above-mentioned steps.When using rechargeable battery, Charger (portable round) can be inserted charging socket 17 chargings.
Claims (9)
1. electronic alarm comprises shell, loudspeaker (2), stand by lamp (3), sensor (6), carriage (9), battery (10), control circuit, reset circuit and the sound circuit of insulation; Control circuit is by triode V1, V2, and resistance R 1, R2, R4 and capacitor C 1 connect to form; Wherein the positive pole of the emitter of triode V1 and battery (10) joins, its emitter and base stage parallel resistance R1, and its base stage is also joined with resistance R 2 one ends, and its collector is as the output terminal of power supply; The collector of the other end of resistance R 2 and triode V2 joins, and the emitter of triode V2 connects battery (10) negative pole, and an end of its base stage and resistance R 4, capacitor C 1 joins; The collector of the other end of resistance R 4 and triode V1 joins; The other end of capacitor C 1 and battery (10) negative pole joins; Control circuit the reset base stage that adopts short circuit triode V2 and the mode of emitter; Sound circuit is made up of sound integrated circuit (IC) 1, loudspeaker (2) and capacitor C 2; Two output termination loudspeakers (2) of sound integrated circuit (IC) 1, the positive and negative two ends of its power supply are in parallel with capacitor C 2; Stand by lamp (3) is with also in parallel with capacitor C 2 after resistance R 5 is connected; Capacitor C 2 two ends are connected to the collector of triode V1 and the negative pole of battery (10) respectively, and it is characterized in that: the shell of described insulation is a spheroid; Spheroid is made up of last spherical crown (1) and following spherical crown (7), becomes spheroid after the two spherical crown bottom surface relative bondings; The described spherical crown (1) of going up is positioned at spheroid top, is semi-spherical shape, internal fixation fitting printed circuit board (4) and loudspeaker (2); The fixing back of printed circuit board (PCB) (4) is parallel with last spherical crown (1) hat bottom surface; Described sensor (6) vertically is installed on the printed circuit board (PCB) (4); Described spherical crown (7) down is positioned at the spheroid bottom, is semisphere, and the centre bit of labeling is equipped with an inside recessed pit (8); Described sensor (6) is connected with resistance R 3, forms trigger circuit; The trigger circuit two ends are connected to the base stage of emitter and the triode V2 of triode V1 respectively; The trigger end of described sound integrated circuit (IC) 1 directly is communicated with its positive source incoming end.
2. according to the described electronic alarm of claim 1, it is characterized in that: described stand by lamp (3) is installed on the printed circuit board (PCB) (4), and is closed in the spherical crown (1); The corresponding employing transparent material of last spherical crown (1) is made.
3. according to the described electronic alarm of claim 1, it is characterized in that: the described interface one of going up spherical crown (1) and each comfortable its joint portion (11) of following spherical crown (7) encloses and is processed with corresponding negative and positive screw thread, becomes one after spinning; Spread all over tiny conical papilla on the outside surface of last spherical crown (1) and following spherical crown (7).
4. according to the described electronic alarm of claim 1, it is characterized in that: the described battery flat of going up spherical crown (1) and battery (10) near on place, spherical crown (1) bottom surface internal fixation together; The face that battery flat is connected with last spherical crown (1) is for circular, and its diameter and last spherical crown (1) interior diameter are clearance fit; Battery flat extends to down in the spherical crown (7).
5. according to the described electronic alarm of claim 1, it is characterized in that: there is the fluid sealant sealing described frame joint of going up spherical crown (1) and loudspeaker (2); Last spherical crown (1) is gone up the position corresponding with loudspeaker (2) and is had the sound conduction hole, and filtering layer is equipped with in the sound conduction hole; Loudspeaker (2) adopts the water-resistant material vibrating diaphragm; Last spherical crown (1) has O type ring-type waterproof sealing cushion rubber with the joint portion (11) of following spherical crown (7).
6. according to the described electronic alarm of claim 1, it is characterized in that: described carriage (9) is connected to form by a spherical crown and cone base.
7. according to the described electronic alarm of claim 1, it is characterized in that: described reset circuit is by triode V3, V4, and resistance R 6, R7 and contact chip (5,12) connect to form; The base stage of the collector of triode V3 and triode V2 is joined, and the emitter of its emitter and triode V2 joins, and the collector of its base stage and triode V4 joins; The emitter of triode V4 is connected to the collector of triode V1, and an end of its base stage and resistance R 6 joins; The other end of resistance R 6 and contact chip (5) join; One end of resistance R 7 and contact chip (12) join, and the negative pole of the other end and battery (10) joins; The described outside surface exposed fixed contact piece spaced apart (5,12) of going up spherical crown (1); Contact chip (5,12) is a metal material.
8. according to the described electronic alarm of claim 1, described reset circuit adopts push button reset switch (13), its two ends are connected to base stage and the emitter of triode V2 respectively, it is characterized in that: described centre of going up on the spherical crown (1) is fixed with spiral base (16), is rotary with screw rod (14) in the hole of spiral base (16); Screw rod (14) top is processed with screw-driver slot (15), can spinning in and out; Screw rod (14) other end is relative with the button of reset switch (13); Reset switch (13) is installed on the one side of printed circuit board (PCB) (4) in the face of screw rod (14).
9. according to the described electronic alarm of claim 8, it is characterized in that: described spiral base (16) hole internal upper part and screw rod (14) are near zero shape ring-type waterproof sealing cushion rubber is arranged between the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100859804A CN101329807A (en) | 2008-07-05 | 2008-07-05 | Electronic alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100859804A CN101329807A (en) | 2008-07-05 | 2008-07-05 | Electronic alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101329807A true CN101329807A (en) | 2008-12-24 |
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ID=40205597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100859804A Pending CN101329807A (en) | 2008-07-05 | 2008-07-05 | Electronic alarm |
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| Country | Link |
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| CN (1) | CN101329807A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044120B (en) * | 2009-10-15 | 2012-06-27 | 海洋王照明科技股份有限公司 | Acousto-optic alarm lamp |
| CN108564768A (en) * | 2018-05-16 | 2018-09-21 | 南昌首诺科技有限公司 | A kind of anti-landfill landslide warning device of roller |
| CN116778681A (en) * | 2023-08-21 | 2023-09-19 | 乐山师范学院 | Mountain tourist attraction disaster early warning method and equipment |
-
2008
- 2008-07-05 CN CNA2008100859804A patent/CN101329807A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044120B (en) * | 2009-10-15 | 2012-06-27 | 海洋王照明科技股份有限公司 | Acousto-optic alarm lamp |
| CN108564768A (en) * | 2018-05-16 | 2018-09-21 | 南昌首诺科技有限公司 | A kind of anti-landfill landslide warning device of roller |
| CN116778681A (en) * | 2023-08-21 | 2023-09-19 | 乐山师范学院 | Mountain tourist attraction disaster early warning method and equipment |
| CN116778681B (en) * | 2023-08-21 | 2023-11-07 | 乐山师范学院 | Mountain region tourist attraction calamity early warning equipment |
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Open date: 20081224 |