CN2169616Y - Alarm and communication device for lift - Google Patents

Abstract

The utility model relates to an alarm and communication device for a lift. The utility model is chiefly characterized in that the utility model is composed of a communication system composed of a system power supply, a communication power supply, an alarm device, a branch alarm device, a branch communication device and a machinery room communication device, and an alarm and communication selecting switch; the system power supply is respectively connected with the communication power supply and the alarm device; the communication power supply is connected with the communication system through the communication contact point of the selecting switch; the alarm device is connected with the branch alarm device through the alarm contact point of the selecting switch. The duty machinery room can receive the branch alarm or the branch mutual conversation through the selecting switch at any time. The device can replace a telephone to realize the elevator car alarm and the communication of the elevator car with the machinery room.

Description

Alarm and communication device for lift

The utility model relates to a kind of elevator alarm communication system device.

At present, lift car and machine room on duty to get in touch and report to the police mostly be to adopt telephone set.Lift car uses telephone set to report to the police and communication, and its defective is that the car telephone set is stolen easily, destroyed, on duty machine room can't be monitored the elevator cage operation state at any time easily, and telephonic communication is because the line is busy, and produces delayed alarm, time-delay communication.

The purpose of this utility model is the alarm communication system device that provides a kind of elevator to use to use this device, and machine room on duty can be monitored the running state of lift car at any time, guarantees lift car and machine room on duty maintenance failure-free communication contact.

Below in conjunction with description of drawings technical solution of the present utility model and embodiment.

Fig. 1 is a block diagram of the present utility model;

Fig. 2 is a circuit structure diagram of the present utility model;

Fig. 3 is the extension set communication device block diagram in the utility model;

Fig. 4 is the extension set communication device circuit structure diagram in the utility model;

Fig. 5 is the machine room communication device circuit structure diagram in the utility model.

Referring to accompanying drawing 1, technical solution of the present utility model is: adopt one and comprise system power supply (I), this power supply is as the power supply of whole device; A communication power supply (II), it is made up of booster ［ 5 ］ and galvanostat ［ 6 ］, uses during as machine room and elevator cab communication; A warning device (III), it is used for detecting the alerting signal that lift car sends and indicates lift car and reports to the police; A communication system (IV), it is by extension set communication device ［ 14 ］, machine room communication device ［ 15 ］ and send the extension set annunciator ［ 7 ］ that alerting signal uses and form; Source switch K ₁Alarm communication system selects to use K switch _2-1And K _2-2, pass through K switch _2-1And K _2-2, machine room on duty can receive extension set and report to the police or converse with extension set.System power supply (I) is by source switch K ₁Connect warning device (III), pass through K switch ₁And K switch _2-1The communication contact connect communication with power supply (II); Communication power supply (II) passes through K switch _2-2The communication contact connect communication system (IV); Warning device (III) passes through K switch _2-2Alarm actuating contact connect the extension set annunciator ［ 7 ］ be arranged in the lift car.

Referring to Fig. 1 and Fig. 2, system power supply (I) comprises by voltage transformer B ₁With diode D ₁～D ₄, capacitor C ₁Form bridge rectifier ［ 1 ］, by ic chip ₁, diode D ₅And D ₆And D ₉Form voltage stabilizer ［ 2 ］, 220 volts alternating-current voltage/AC voltage is exported the vdc of 7.2V after rectification, filtering and voltage stabilizing.For guaranteeing that when AC network has a power failure the utility model energy reliable operation also comprises by ic chip in the system power supply (I) ₂, diode D ₇And D ₈, D ₁₀The voltage stabilizer of forming ［ 3 ］ is by battery E and diode D ₁₁The storage battery of forming ［ 4 ］, storage battery ［ 4 ］ input end are by the mouth of voltage stabilizer ［ 3 ］ connection rectifier ［ 1 ］, and its mouth connects source switch K ₁When AC network had a power failure, the vdc of storage battery ［ 4 ］ output 7.2V was to guarantee this device reliable operation.K switch _2-1And K switch _2-2Be double pole double throw, it selects usefulness as warning and communication, when it is pulled communication position, and machine room and the communication mutually of elevator extension set, when it was pulled alert locations, machine room can detect extension set and report to the police.Referring to Fig. 1 and Fig. 2, communication is made up of booster ［ 5 ］, galvanostat ［ 6 ］ with power supply (II); The input end of booster ［ 5 ］ connects K switch _2-1Communication contact, the input end that its mouth connects galvanostat ［ 6 ］; The mouth of galvanostat ［ 6 ］ connects K switch _2-2The communication contact.Booster ［ 5 ］ is by the special use ic chip that boosts ₃And peripheral cell (inductance L ₁, resistance R ₁And R ₂, capacitor C ₂) form, through diode D ₁₂, capacitor C ₃, inductance L ₂And capacitor C ₄Export 28 volts vdc, this voltage is via current collecting piece IC ₄And peripheral cell (diode D ₁₃～D ₁₅, resistance R ₃) galvanostat ［ 6 ］ constant current formed, constant current is 80mA.Resistance R ₃The size of decision constant current, diode D ₁₃And D ₁₄Be IC ₄The protection diode.Constant current is through diode D ₁₅Output is as the communication constant current source.Referring to Fig. 1 and Fig. 2, warning device (III) is by alerting signal detector ［ 8 ］, delay timer ［ 9 ］, warning lock ［ 10 ］, restorer ［ 11 ］, alert acoustic generator ［ 12 ］, alert acoustic amplifier ［ 13 ］, loud speaker Y ₁Form.Alerting signal detector ［ 8 ］ is by resistance R ₅And R ₆, diode D ₁₇And D ₁₈, ic chip ₅Form.IC ₅In-phase input end pass through resistance R ₆, diode D ₁₇And D ₁₈Obtain 1.2 volts of reference voltages, its inverting input is through K switch _2-2Alarm actuating contact be connected with extension set annunciator ［ 7 ］ in being arranged on lift car.Extension set annunciator ［ 7 ］ is by resistance R ₄With reset button switch AN ₁Form.Delay timer ［ 9 ］ is by diode D ₁₉, aerotron BG ₁, resistance R ₇And R ₉, capacitor C ₅, ic chip ₆Form.Warning lock ［ 10 ］ is by diode D ₂₀, controllable silicon SCR, light-emitting diode D ₂₁And resistance R ₁₁Form.Restorer ［ 11 ］ is by reset button switch AN ₂And resistance R ₈Form.Alert acoustic generator ［ 12 ］ is by resistance R ₁₂～R ₁₄, zener diode D ₂₂, capacitor C ₇With the four tones of standard Chinese pronunciation special-purpose ic chip of reporting to the police ₇Form.Alert acoustic amplifier ［ 13 ］ is by resistance R ₁₅, capacitor C ₈And power discharging integrated block IC ₈Form.Warning device (III) principle of work is as follows: when extension set is not pressed AN ₁The time, IC ₅Inverting input voltage is greater than 1.2V, IC ₅Output low level, warning device (III) are not worked and the alarm free indication.When extension set is pressed AN ₁The time, IC ₅Inverting input voltage is less than 1.2V, IC ₅The output high level, diode D ₁₉And D ₂₀All conductings, BG ₁Conducting, capacitor C ₅Pass through BG ₁Discharge, IC ₆The output high level.Can dig silicon SCR conducting, cause light-emitting diode D owing to obtaining forward voltage and trigger level ₂₁Luminous, D ₂₁Luminous expression extension set is reported to the police.The warning time length is by resistance R ₉And capacitor C ₅Charging time constant decision.Report to the police if need to eliminate, press reset button AN ₂Get final product, at this moment IC ₆Output low level, alerting signal disappears.Work as IC ₆During the output high level, ic chip ₇Work and send alert acoustical signal, this signal is through ic chip ₈Amplify and promotion loud speaker Y ₁Sound the alarm.Referring to Fig. 1 and Fig. 2, communication system (IV) comprises extension set annunciator ［ 7 ］, extension set communication device ［ 14 ］ and machine room communication device ［ 15 ］.Extension set annunciator ［ 7 ］ is by reset button AN ₁And resistance R ₄Form, it passes through K switch _2-2Alarm actuating contact be connected with the alerting signal detector of warning device (III).Extension set communication device ［ 14 ］ is by monitoring communication select switch K ₃The communication contact be connected with machine room communication device ［ 15 ］.Referring to Fig. 3, extension set communication device ［ 14 ］ is made up of with extension set transmitter ［ 20 ］ auto polarity conv ［ 16 ］, extension set working power ［ 17 ］, extension set receiver ［ 18 ］, anti-sidetone device ［ 19 ］; Auto polarity conv ［ 16 ］ connects the input end of extension set working power ［ 17 ］ and anti-sidetone device ［ 19 ］ respectively, extension set working power ［ 17 ］ connects the power input of extension set receiver ［ 18 ］, extension set transmitter ［ 20 ］ respectively, the mouth of anti-sidetone device ［ 19 ］ connects the input end of extension set receiver ［ 18 ］, and extension set transmitter ［ 20 ］ connects auto polarity conv ［ 16 ］ by anti-sidetone device ［ 19 ］.Referring to Fig. 4, the auto polarity conv ［ 16 ］ in the extension set communication device is by diode D ₂₅～D ₂₈The bridge circuit of forming, its output voltage polarity is constant when guaranteeing to connect the machine room communication device arbitrarily.Extension set working power ［ 17 ］ is by inductance L ₃, capacitor C ₁₃And zener diode D ₂₉Constitute, in order to extension set transmitter ［ 20 ］ and the stable operating voltage of extension set receiver ［ 18 ］ to be provided.Extension set receiver ［ 18 ］ is by 1/2IC ₁₀Power discharging integrated block, capacitor C ₁₄And C ₁₆With C ₁₇, resistance R ₂₁And R ₂₂, Yang Sheng device Y ₂The representative type low-frequency power amplifier of forming.Extension set transmitter ［ 20 ］ is by Electret condenser microphone MIC ₁, aerotron BG ₃, diode D ₃₀And D ₃₁, capacitor C ₁₉～D ₂₃, resistance R ₂₄～R ₂₆And 1/2IC ₁₀Power discharging integrated block is formed.Anti-sidetone device ［ 19 ］ is by voltage transformer B ₂, capacitor C ₁₅And capacitor C ₁₈, resistance R ₂₃Form.Voltage transformer B ₂secondaryly have a center tap, its center tap connects the input end of extension set receiver ［ 18 ］, the mouth of its elementary connection extension set transmitter ［ 20 ］.The sound signal of coming when extension set words devices ［ 20 ］ arrives voltage transformer B ₂The time, B ₂Center tap do not have that sound signal output, extension set receiver ［ 18 ］ are not worked, loud speaker Y ₂Noiseless.The sound signal of sending here when machine room arrives voltage transformer B ₂During the secondary centre tap, B ₂The secondary centre tap has audio voltage output, extension set receiver ［ 18 ］ work, loud speaker Y ₂Sound.Referring to Fig. 5, machine room communication device ［ 15 ］ is by the special-purpose ic chip of conversation ₁₁And the peripheral cell composition, it is representative type communication circuit, wherein a R _xBe earphone, MIC ₂Be Electret condenser microphone.Referring to Fig. 1 and Fig. 2, the utility model also is provided with in order to the audiomonitor (VI) of monitoring the lift car sound with in order to the acousto-optic indicating device (V) of indicating system power supply (I) utilization state.Audiomonitor (VI) is by potential device W, capacitor C ₁₀And C ₉, resistance R ₁₆Form, its input end is by monitoring communication select switch K ₃The monitoring contact be connected with the extension set communication device to detect the lift car sound, its mouth passes through capacitor C ₉Be connected to amplify the signal that extension set communication device ［ 14 ］ comes with the alert acoustic amplifier input end in the warning device (III).The mouth of described acousto-optic indicating device (V) end connected system power supply (I), the mouth of the rectifier ［ 1 ］ in its other end connected system power supply (I); It is by ic chip ₉, aerotron BG ₂, resistance R ₁₇～R ₂₀Capacitor C ₁₁And C ₁₂, diode D ₂₃, light-emitting diode D ₂₄Form with piezoelectric type ceramic horn HTD.Wherein by two 1/2IC ₉The low frequency oscillator that constitutes 0.5HZ is to drive light-emitting diode D ₂₄It is luminous to glimmer, by two 1/2IC ₉Constitute the 1.2KHZ audio frequency oscillator to drive piezoelectric type ceramic horn HTD sounding.When the 220V AC network was powered, the rectifier of system power supply (I) had vdc output to cause BG ₂Conducting is by two 1/4IC ₉The low frequency oscillator output high level, the light-emitting diode D that form ₂₄Chang Liang; By two 1/4IC ₉The audio frequency oscillator of forming is not worked, ceramic horn HTD is noiseless.When the 220V AC network stopping time, the no vdc output of the rectifier ［ 1 ］ of system power supply (I), and make BG ₂By, low frequency oscillator work, light-emitting diode D ₂₄Luminous, the audio frequency oscillator work of glimmering causes piezoelectric type ceramic horn HTD to send intermittently and pipes, and shows that the storage battery ［ 4 ］ in the system power supply (I) is being given whole alarm communication system device power supply this moment.

Brief description operating process of the present utility model.

Referring to Fig. 1, the power turn-on K switch ₁, the alarm communication system device is in running order, alarm communication system select switch K ₂Pull alert locations, warning device (III) is connected with the extension set annunciator ［ 7 ］ that is arranged in the lift car, and machine room is in stand-by state, can receive the alerting signal of extension set at any time.Alarm communication system select switch K ₂Pull communication position, monitor communication select switch K ₃Pull communication position, machine room communication device ［ 15 ］ is connected with the extension set communication device ［ 14 ］ that is arranged in the lift car, can communicate with each other between machine room on duty and the lift car.Monitor communication select switch K ₃Pull monitoring position, audiomonitor (VI) is connected with extension set communication device ［ 14 ］, and machine room on duty can be monitored the sound of lift car at any time.

Advantage of the present utility model has been to replace the telephone set that present lift car uses, thereby has overcome that lift car uses telephone set and machine room communication on duty and to the unreliable defective of machine room warning on duty.

Claims (4)

1, a kind of elevator alarm communication system device, it is characterized in that it by system power supply (I), communication power supply (II), warning device (III), the communication system (IV) that extension set annunciator [7], extension set communication device [14] and machine room communication device [15] are formed, source switch K ₁, alarm communication system selects to use K switch _2-1And K _2-2System power supply (I) is passed through K switch ₁With K switch _2-1The communication contact connect communication with power supply (II), communication power supply (II) passes through K switch _2-2The communication contact connect communication system (IV), warning device (III) passes through K switch _2-2Alarm actuating contact connect extension set annunciator [7] in the communication system (IV).

2, elevator according to claim 1 alarm communication system device is characterized in that described communication power supply (II) is made up of booster ［ 5 ］, galvanostat ［ 6 ］; The input end of booster ［ 5 ］ connects K switch _2-1Communication contact, the input end that its mouth connects galvanostat ［ 6 ］; The mouth of galvanostat ［ 6 ］ connects K switch _2-2The communication contact.

3,, it is characterized in that described extension set communication device ［ 14 ］ is made up of auto polarity conv ［ 16 ］, extension set working power ［ 17 ］, extension set receiver ［ 18 ］, anti-sidetone device ［ 19 ］ and extension set transmitter ［ 20 ］ according to claim 1 and 2 described elevator alarm communication system devices; Auto polarity conv ［ 16 ］ connects the input end of extension set working power ［ 17 ］ and anti-sidetone device ［ 19 ］ respectively, extension set working power ［ 17 ］ connects the power input of extension set receiver ［ 18 ］, extension set transmitter ［ 20 ］ respectively, the mouth of anti-sidetone device ［ 19 ］ connects the input end of extension set receiver ［ 18 ］, and extension set transmitter ［ 20 ］ connects auto polarity conv ［ 16 ］ by anti-sidetone device ［ 19 ］.

4, according to claim 1 and 2 described elevator warning devices, it is characterized in that system power supply (I) except that comprising rectifier ［ 1 ］, voltage stabilizer ［ 2 ］, also comprise voltage stabilizer ［ 3 ］, storage battery ［ 4 ］; Storage battery ［ 4 ］ input end is crossed the mouth that voltage stabilizer ［ 3 ］ connects rectifier ［ 1 ］, and its mouth connects source switch K ₁

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