CN2134007Y - Dispatching exchanger for mine - Google Patents

Abstract

The utility model relates to a dispatching exchanger for mines, which is suitable for the mine that an automatic telephone is arranged above the mine and a power supply type telephone is arranged under the mine. The utility model is provided with an automatic user circuit, a power supply user circuit and a ringing system. When the automatic telephone needs to call the people under the mine, the automatic telephone needs to call a dispatching desk first. An S relay in the user circuit of the dispatching desk is actuated. A ringing relay L is actuated after a ringing generator is communicated with the telephone under the mine by normally opened contacts. The L relay is released after the telephone under the mine is in an off-hook mode, and the talking can be realized by the communication of normally closed contacts L1, L2, obtaining the purpose that the automatic telephone above the mine directly calls the power supply telephone under the mine without manual switching.

Description

Dispatching exchanger for mine

The utility model is a kind of telephone exchange, and particularly being used on the coal mine to the automatic telephone down-hole is in the communication mode of operated type phone.

The down-hole phone is generally operated type, magneto telephone now.Manual exchange exchange, no matter aboveground is automatic telephone user or operated type telephone subscriber, must be through artificial exchange as long as call out the down-hole user.

The manual exchange exchanged form is generally when the automatic telephone user need call out underground power supply used formula phone, at first calling out in the manual exchange trunk line door is inserted cord in two users' jack or with the respective panels key by the dispatcher and pulls connecting subscribers participating down, manual ringing then, this manual exchange existing problems: no matter (1) is automatic telephone or other phone, just needs artificial conversion as long as call out the down-hole phone.(2) conversion speed is slow.(3) complicated operation.(4) be subjected to the few restriction of cord circuit.(5) aboveground conversation down is inconvenient.

From the data of present grasp, need artificial this problem of exchange when the various mining scheduling switch that uses has not also solved aboveground calling down-hole now.

The purpose of this utility model provides a kind of mining scheduling switch that does not need artificial exchange.It can make aboveground automatic telephone user call out out underground power supply used formula telephone subscriber automatically through this switch.

The utility model proposes of task is finished by following measure: be provided with the Self-sound-produced bell system in each subscriber line circuit of switch.Because each user of switch is the user of aboveground dial exchange, directly link to each other with the down-hole phone again simultaneously, when aboveground automatic telephone call down-hole user, can realize secondary call signal, be that unattended station is when the scheduling switch ring after pulling out automatic number for the first time, ringing-current makes S relay energized in the scheduling switch subscriber line circuit, has connected L relay in the switch, carry out secondary call signal, send ringing-current to underground power supply used formula phone.Thereby do not need artificial exchange can call out out the down-hole user.

The utility model has following advantage compared with the prior art:

Need artificial this problem of conversion when (1) having solved the underground power supply used formula phone of aboveground automatic telephone call.(2) cord circuit is many, and a user connects an automatically-controlled door and is equivalent to have a cord circuit.(3) simple in structure, easy to operate.

Routine accompanying drawing has been described an embodiment of the present utility model down:

Fig. 1 is subscriber line circuit figure of switch of the present utility model.

Fig. 2 is 2 seconds backlash circuit figure among Fig. 1.

Fig. 3 is each binding post effect of Fig. 1 and annexation figure.

In Fig. 1,1,2 terminals are to connect the automatic subscriber line terminals.D ₂Signal lamp when being aboveground customer call down-hole.D ₂It is down-hole customer call signal lamp when aboveground.S is the twin coil slow-releasing relay.Four terminal Sd are arranged ₁～Sd ₄And six pairs of normal opened contact S ₁～S ₆T is the relay that is used to send down-hole customer call signal and the power supply of conversing is provided.Four terminal Td are arranged ₁～Td ₄And six pairs of contacts, T ₁, T ₃, T ₄Be normal opened contact, T ₂Be normally closed contact, T ₅, T ₆Be close earlier back from changeover contact.Connect the ringing-current relay of ringing system when L is aboveground calling down-hole, two terminal Ld are arranged ₁, Ld ₂And the Second Mate changes connection L ₁, L ₂C ₁, C ₂, C ₃Be capacitor, C ₁Join with S and to be used for cutting off direct current, C by exchanging ₂, C ₃Be used for cutting off conversation route direct current.K ₁, K ₂Be two positions of one pair of switching push-key, K ₂There are six pairs of contacts, K in the position ₂₁, K ₂₄Be normally closed contact, K ₂₂, K ₂₃, K ₂₅, K ₂₆Be normal opened contact.K ₁Two pairs of changeover contact K are arranged ₁₁, K ₁₂And one pair of normal opened contact K ₁₃Circuit connecting relation is Sd ₁Connect 1 terminal, Sd ₃Through C ₁Connect 2 terminals, Sd ₂Through S ₂And T ₅Just connect power supply, Sd ₄Through S ₃And T ₆Connect power-.Td ₁And Td ₂Respectively through L ₁And L ₂Be connected with down-hole user's unit 3,4 terminals.Td ₃And Td ₄Connect the power supply negative, positive respectively.Ld ₂Through T ₃Just connect power supply, Ld ₂Through S ₆Or K ₁₃Connect power-with 2 seconds backlash circuits.P ₁With P ₂It is the splicing ear of Fig. 1 and Fig. 2.

In Fig. 2, circuit is made up of a bistable circuit and a switching circuit, is connected on Fig. 1 ringing-current relay L and inhales in the moving route, and making the L relay send ringing-current when ring is 2 seconds interruptions.Regulating bistable circuit is conversion in 2 seconds.Switch triode just broke in 2 seconds logical 2 seconds in the circuit.

Each corresponding with Fig. 1 in Fig. 3 binding post annexation is: 1,2 terminals connect aboveground automatic telephone subscribers feeder, and 3,4 terminals connect down-hole user's unit operated type phone.5,6 terminals connect ringing current generator, are used to down-hole unit ring to produce ringing-current.7,8 terminals connect dispatcher's speaking circuit or connect an automatic telephone unit.

1, the underground power supply used phone of aboveground automatic telephone call.

After aboveground user pulled out user on the dispatching desk (down-hole user) number, aboveground telephone office ringing current process column circuits was down come in.

Circuit one: terminal 1, Sd ₁, coil, Sd ₃, C ₁, terminal 2.

Because of ringing current by the S relay coil, S relay energized and by column circuits self-insurance down.

Circuit two: positive source, T ₅Back contact, S ₂Contact, Sd ₂, coil, Sd ₄, S ₃Contact, T ₆Back contact, power-.

After the self-insurance of S relay, S ₁Connect D ₁Indicator light.S ₄, S ₅Connect the conversation route.S ₆Connect L relay energized route, the L relay energized.

Circuit three: positive source, T ₂, Ld ₁, coil, Ld ₂, S ₆, P ₁, 2 seconds circuit, P ₂, power-.

Behind the L relay energized, L ₁, L ₂Changeover contact becomes moving closing by quiet closing, and down-hole phone and ringing current generator are connected just ring.

Circuit four: terminal 5, L ₁Normally opened contact, terminal 3, subscriber phone, terminal 4, L ₂Normally opened contact, terminal 6.

Since the effect of 2 seconds backlash circuits in the L relay energized route, L ₁, L ₂Changeover contact 2 seconds is quiet to close 2 seconds moving closing.Down-hole user's ring was interrupted in 2 seconds.

After the down-hole user gets machine, L ₁, L ₂Quiet fashionable, the T relay energized.

Circuit five: power-, Td ₃, coil, Td ₁, L ₁Back contact, terminal 3, substation, terminal 4, L ₂Back contact, Td ₂, coil, Td ₄, power supply just.

Behind the T relay energized, T ₁Connect indicator light D ₂, T ₂The contact action disconnects L relay energized route, and the L relay discharges.

T ₃, T ₄Conversation route, T are connected in the contact action ₅, T ₆After changeover contact moves and closes, connect S relay self-insurance route, the self-insurance again of S relay.

Circuit six: terminal 1, K ₂₁, T ₅Normally opened contact, S ₂, Sd ₂, coil, Sd ₄, S ₃, T ₆Normally opened contact, K ₂₄, terminal 2.

The route of conversing this moment is connected, and both sides can converse.

Circuit seven: (1) terminal 1, S ₄, C ₂, T ₃, K ₁₁Back contact, L ₁Back contact, terminal 3.

(2) terminal 2, S ₅, C ₃, T ₄, K ₁₂Back contact, L ₂Back contact, terminal 4.

After end of conversation both sides on-hook, S, T relay all cut off the self-insurance route and discharge.

2, aboveground user is called out in the down-hole.

After the down-hole user gets machine, the T relay energized.Inhale moving route and see circuit five, each contact action situation of T relay as mentioned above.

Work as D ₂The bright back of indicator light dispatcher pulls K with push-key K ₁The position, down-hole user and dispatcher connect.

Circuit eight: (1) terminal 3, L ₁Back contact, K ₁₁Normally opened contact, terminal 7.

(2) terminal 4, L ₂Back contact, K ₁₂Normally opened contact, terminal 8.

After the dispatcher learnt the number of calling out aboveground user, K was positioned at K with push-key ₂The position, corresponding K ₂The contact action, its K ₂₁, K ₂₄Contact disconnects, K ₂₂, K ₂₃Contact is moving to be closed.The S relay energized.

Circuit nine: power supply just, K ₂₂, Sd ₂, coil, Sd ₄, K ₂₃, power-.

Each contact action situation as mentioned above behind the S relay energized.

K ₂₅, K ₂₆Contact is moving to be closed the dispatcher and hears dialing sound, dialing then.After hearing ring-back tone, push-key K is got back to original static position.At this moment, K ₂₁, K ₂₄Back contact is connected the just self-insurance of S relay self-insurance route, sees circuit six.

Just can converse when aboveground user gets the machine both sides, said process also can be realized customer call down-hole, down-hole user.

3, the dispatcher calls out the down-hole user:

When the dispatcher pulls K with push-key K ₁During the position, K ₁₃Connect L relay energized route, L relay energized, L ₁, L ₂Changeover contact broke in 2 seconds logical 2 seconds, sent ringing-current to see circuit four K to the down-hole user ₁₁, K ₁₂Down-hole user and dispatcher connect after moving the closing, and the down-hole user gets machine and can converse.

Claims (1)

1, mining scheduling switch, particularly be used in aboveground for the automatic telephone down-hole be the mine of operated type telephonic communication mode; This installs the S relay in each subscriber line circuit, and its normally opened contact S6 is arranged at ringing relay L and inhales in the moving route, it is characterized in that L relay changeover contact L1, L2 join with ringing current generator inhaling when moving, join with the route of conversing when discharging.

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