CN2523158Y

CN2523158Y - Engineering voice-amplifying intercom

Info

Publication number: CN2523158Y
Application number: CN01279789U
Authority: CN
Inventors: 庄清标
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-29
Filing date: 2001-12-29
Publication date: 2002-11-27
Anticipated expiration: 2011-12-29

Abstract

An engineering sound amplifying intercom is mainly provided with a phone body, wherein, a controlling circuit comprising elements such as a power amplifier, an audio transformer, etc. is arranged in the phone body; a selector switch is arranged on the phone body; a key-press is arranged on a microphone; the selector switch and an amplifying horn are connected with the controlling circuit, and the sound signals of speakers are amplified through the controlling circuit and the horn of the other speaker is ensured to produce a public address by the connection of a plurality of phones with each other and the utilization of the switching of the switch. The utility model can be used for communicating normally in noisy and severe surroundings.

Description

The engineering amplifying intercom

(1) technical field

The utility model relates to a kind of communication equipment, particularly a kind of engineering amplifying intercom, it can keep the excellent communications effect under noisy, adverse circumstances, and install, operation is simple and easy.

(2) background technology

Under adverse circumstances, the contact of for example in the tunnel, conversing, it is very difficult particularly will reaching the excellent communications effect, generally in the tunnel, get in touch with, need to establish telephone exchange by construction section, but the extension set of telephone exchange only reaches 3-5km farthest, and distance is long because signal attenuation is big, can't be for words.

The mode for liaison is to adopt the hand-rail type telephone set in the tunnel the earliest, judge first service area or second service area in the tunnel according to the length of hand the tinkle of bells, this kind mode is not only inconvenient, and because of unfavorable factor such as moist in the tunnel, that dust is many, noisy of work implements is big, can't tell jingle bell sound during work at all, not know more whom who is crying.Work can't be carried out smoothly, incur loss through delay and handle timeliness.

In addition, generally be used at present the engineering intercom of wire communication, only be provided with microphone and phone usually, in phone, be provided with suitable amplifying circuit, during communication, utilize the microphone direct calling, and by the direct intercommunication of microphone, the effect of this kind intercom is similar to general telephone set, therefore, there is following shortcoming in it: when the noisy sound of construction occasion was excessive, the user can't learn incoming call at all, and sound is unclear when answering (1); (2) power is little, can't grow Distance Transmission; (3) can't under adverse circumstances such as moist, noisy, use; (4) wiring complexity.

(3) summary of the invention

Main purpose of the present utility model is to provide a kind of engineering amplifying intercom of definition requirement of conversing that can keep in adverse circumstances.

For achieving the above object, the utility model is taked following technical measures:

Engineering amplifying intercom of the present utility model, mainly be provided with a phone body, be provided with a control circuit of forming by unit such as power amplifier, audio frequency transformers in the phone body, control circuit connects diverter switch, the megaphone that is located on the phone body, and a button that is located on the microphone, make a plurality of phones in interconnecting, to utilize the switching of switch, calling party's voice signal is amplified through control circuit, the other side's loudspeaker generation is amplified.

Wherein, the power supply of described control circuit be by alternating current one of in the power supply of transformer conversion or built-in battery.

Wherein, described phone body be desktop or wall-hanging in one of.

Wherein, the appearance of described megaphone has protecting wire net.

Wherein, described phone body is provided with binding post, this binding post is provided with the sleeve of tool open-work, jacket casing is combined on the card post that is provided with fixing hole, a spring contact is between card post and sleeve, with when pushing card post and sleeve, the fixing hole of the open-work of sleeve and card post can align, and string is fixed between sleeve and card post through the lead of open-work and fixing hole.

Wherein, described phone body is provided with one and is convenient to portable handle.

Compared with prior art, the utlity model has following effect:

The megaphone of any one working face can clearly be recognized anyone and calling out when the utility model can be done calling, contact, the calling of single-point, multiple spot, no matter all can reach the purpose of contact under many rugged environments.

(4) description of drawings

Fig. 1: the utility model engineering schematic perspective view of amplifying intercom;

Fig. 2: the utility model engineering is made the internal structure schematic diagram that phone uses with amplifying intercom;

Fig. 3: the utility model engineering is with the connection status schematic diagram of amplifying intercom (Fig. 3 A, 3B are respectively and insert in binding post and the schematic diagram of fixing cord);

Fig. 4: a plurality of phone connection diagrams of the utility model;

Fig. 5: the utility model engineering circuit diagram of amplifying intercom embodiment;

Fig. 6: the schematic perspective view of wall-hanging phone of the present utility model.

(5) embodiment

Reaching embodiment in conjunction with the accompanying drawings is described in detail as follows architectural feature of the present utility model:

As Fig. 1, shown in 2, the utility model mainly is provided with a phone body 1 (as the desktop intercom), be provided with one in the phone body 1 by power amplifier, the control circuit 11 that unit such as audio frequency transformer are formed, control circuit 11 connects the diverter switch 12 and the megaphone 13 that are located on the phone body 1 respectively, a button 15 and a binding post 16 that is located on the microphone 14, several phone bodies 1 are interconnected with lead 17 via terminal 16, when communication, utilize the switching of diverter switch 12, speaker's sound is amplified via control circuit 11, produce the effect that amplifies at loudspeaker 13, and via the button 15 of pushing microphone 14, the signal of will giving orders or instructions is transmitted, and can in the noisy environments of construction occasion, can keep communication effect clearly.

The power supply that the control circuit 11 of phone body 1 is required is supplied by a transformer 18 grafting alternating currents, or is directly supplied by built-in battery 19, is convenient to be applicable to different operational environments.

Aforementioned megaphone 13 can take waterproof and dustproof, shockproof structure to make at actual needs (as using in building site, factory, tunnel), and its appearance has firm protecting wire net 131 and shield, to be suitable for rugged environment.

Can be provided with the handle 10 of a movable on the phone body 1 in addition, so that portable.

As shown in Figure 3, Figure 4, intercom of the present utility model is arranged in lead 17 in the terminal 16 in use; Wherein, terminal 16 is provided with the sleeve 162 of tool open-work 161, sleeve 162 is linked on the card post 164 that is provided with fixing hole 163, and between card post 164 and sleeve 162, be provided with a spring 165, in when assembling with sleeve 162 in pressure, make lead 17 pass open-work 161 and fixing hole 163 respectively, loosen sleeve 162 again, lead 17 is fastened between sleeve 162 and the card post 164 forms fixedly shape, only a plurality of phone bodies 1 are connected.

As Fig. 5 and cooperate shown in Figure 1ly, the utility model can be carried out following steps in use:

1, send words side first diverter switch 12, and give orders or instructions by microphone 14; Make the loudspeaker 13 of the side talked about on phone body 1 obtain the transmission ring tone of louder volume;

2, be subjected to hang on after 14 in words side, can push the button 15 of microphone 14, the signal of will giving orders or instructions is transmitted by microphone 14;

3, be subjected to words will send the sound of words side on loudspeaker 13, to produce the effect of amplifying via diverter switch 12.

The aforesaid communication information is handled, by set power amplification circuit 111 (being made up of integrated circuit (IC) 1 and peripheral element thereof) and audio frequency transforming circuit 112 (being made up of transformer T2 and peripheral element thereof) in the control circuit 11, its power supply is then supplied by the rectification circuit 113 that integrated circuit (IC) 3 and peripheral element thereof are formed.

As shown in Figure 6, phone body 1 of the present utility model, also can be made as wall-hanging, conveniently to hang on the wall of the construction occasion of no desk, equally, establish on phone body 1 with diverter switch 12 and loudspeaker 13, the top of phone body 1 then is provided with a hanger 20, for microphone 14 hang and integral body hangs on the wall.

In sum, the utility model is the phone that is provided with circuit such as power amplifier, audio frequency transformer, cooperate the switching of megaphone and switch, make engineering can keep the excellent communications effect with intercom in noisy, the adverse circumstances of the occasion of constructing, it is practical.

Foregoing is to utilize embodiment that technical characterictic of the present utility model is described, is not to be used to limit protection range of the present utility model, even there is the people to change slightly on the basis of the utility model design, must belong in the protection range of the present utility model.

Claims

1, a kind of engineering amplifying intercom mainly is provided with a phone body, is provided with a control circuit of being made up of unit such as power amplifier, audio frequency transformers in the phone body; It is characterized in that the phone body is provided with a diverter switch, microphone is provided with a button; Control circuit connects diverter switch and megaphone, and a plurality of phones are interconnected, and to utilize the switching of switch, calling party's voice signal is amplified through control circuit, and the other side's loudspeaker generation is amplified.

2, intercom according to claim 1 is characterized in that, the power supply of described control circuit be by alternating current one of in the power supply of transformer conversion or built-in battery.

3, intercom according to claim 1 is characterized in that, described phone body be desktop or wall-hanging in one of.

4, intercom according to claim 1 is characterized in that, the appearance of described megaphone has protecting wire net.

5, intercom according to claim 1, it is characterized in that, described phone body is provided with binding post, this binding post is provided with the sleeve of tool open-work, jacket casing is combined on the card post that is provided with fixing hole, and a spring contact is between card post and sleeve, with when pushing card post and sleeve, the fixing hole of the open-work of sleeve and card post can align, and string is fixed between sleeve and card post through the lead of open-work and fixing hole.

6, intercom according to claim 1 is characterized in that, described phone body is provided with one and is convenient to portable handle.