阅读说明：本技术 一种耳鼻喉综合治疗台微电路控制系统 (Ear-nose-throat comprehensive treatment table micro-circuit control system ) 是由 张礼军 于 2020-06-28 设计创作，主要内容包括：本发明公开了一种耳鼻喉综合治疗台微电路控制系统,包括供电电路、欧式管电路、正压电路、负压电路、除雾电路和照明电路,供电电路包括接线端子J1、整流模块、稳压模块和滤波模块,欧式管电路包括继电器K1、K2、K3、K4、Y13、Y14、接线端子S3、接线端子S1和接线端子J8,正压电路包括继电器Y3、Y4、Y5、Y6和接线端子J6,负压电路包括接线端子J5、继电器K5、Y7、Y8,除雾电路包括接线端子J3、接线端子J4、定时器、继电器K9、K10、Y9、Y10、有极性电容C5和电阻R2,照明电路包括接线端子J7、继电器K7、K8、Y1和Y2,本发明微电路控制系统实现了对耳鼻喉综合治疗台的集成控制、自动断电保护。(The invention discloses a microcircuit control system of an ear-nose-throat comprehensive treatment table, which comprises a power supply circuit, an European tube circuit, a positive voltage circuit, a negative voltage circuit, a defogging circuit and a lighting circuit, wherein the power supply circuit comprises a connecting terminal J1, a rectifying module, a voltage stabilizing module and a filtering module, the European tube circuit comprises relays K1, K2, K3, K4, Y13, Y14, a connecting terminal S3, a connecting terminal S1 and a connecting terminal J8, the positive voltage circuit comprises relays Y3, Y4, Y5, Y6 and a connecting terminal J6, the negative voltage circuit comprises a connecting terminal J5, a relay K5, Y7 and Y8, the defogging circuit comprises a connecting terminal J3, a connecting terminal J4, a timer, a relay K9, K10, Y9, Y10, a polar capacitor C5 and a resistor R2, the lighting circuit comprises a connecting terminal J7, a relay K7, a relay K8, a Y1 and a Y2, and the microcircuit realizes the control system of the ear-nose-throat comprehensive treatment, And automatic power-off protection.)

1. A microcircuit control system of an ear-nose-throat comprehensive treatment table is characterized by comprising a power supply circuit, an European tube circuit, a positive voltage circuit, a negative voltage circuit, a defogging circuit and an illumination circuit;

the power supply circuit comprises a connecting terminal J1, a rectifying module, a voltage stabilizing module and a filtering module, wherein the rectifying module comprises a rectifying bridge, a capacitor C1 and a polar capacitor C2, pins J12 and No. 1 of the connecting terminal are connected to pins 2 and No. 3 of the rectifying bridge, the capacitor C1 is connected with pins 1 and No. 4 of the rectifying bridge, and the polar capacitor C2 is connected with a capacitor C1 in parallel; the voltage stabilizing module adopts three terminal regulator, the anodal input with three terminal regulator of polarized capacitance C2 is connected, there is the nature of remembering electric capacity C2 negative pole to connect the stabiliser common terminal, fuse F1 is connected to the three terminal regulator output, the filtering module is including polarized capacitance C3 and electric capacity C4, fuse F1 is connected with polarized capacitance C3's positive pole, electric capacity C4 and polarized capacitance C3 parallel connection, supply circuit exports direct current voltage VCC after rectification, steady voltage, filtering.

2. The microcircuit control system of an otolaryngology complex treatment table according to claim 1, characterized in that the euro-type tube circuit comprises relays K1, K2, K3, K4, Y13, Y14, a connection terminal S3, a connection terminal S1 and a connection terminal J8, wherein pin 2 of the connection terminal S3 is connected with one end of relays K2 and K3, the other ends of relays K2 and K3 are connected with the negative electrode through the normally closed contacts of relays K1 and K4, one set of normally open contacts of the relay K2 is connected to provide direct current voltage for one ends of relays Y13 and Y14, the other ends of relays Y13 and Y14 are connected with pin 2 of the connection terminal S1, pin 3 of the connection terminal S1 is connected with the negative electrode, and the relays Y13 and Y14 are connected with pin 3 and pin 4 of J8 respectively.

3. The microcircuit control system of the otolaryngology complex treatment table according to claim 1, characterized in that the positive voltage circuit comprises relays Y3, Y4, Y5, Y6 and a connection terminal J6, after another group of normally open contacts of the relay K2 are connected, a direct current voltage is provided for one ends of relays K3 and K4, the other ends of the relays K3 and K4 are connected with a negative electrode, one ends of the relays K3 and K4 are respectively connected with a pin No. 1-2 and a pin No. 3-4 of the connection terminal J6, a connection terminal S2 is connected with one end of the relay K4, the other end of the relay K4 is connected with a negative electrode through a normally closed contact of the relay K3, the relay K4 is connected with one ends of relays Y5 and Y6, and the other ends of the relays Y5 and Y6 are connected with a negative electrode.

4. The microcircuit control system of the ear-nose-throat comprehensive treatment table according to claim 1, characterized in that the negative voltage circuit comprises a connection terminal J5, a relay K5, a relay Y7 and a relay Y8, one end of the relay K5 is connected with a direct current voltage VCC, the other end of the relay K5 is connected with a negative electrode, a group of normally open contacts of the relay K5 is connected with one ends of the relays Y7 and Y8, the other ends of the relays Y7 and Y8 are connected with a negative electrode, and the relays Y7 and Y8 are respectively connected with pins No. 1-2 and No. 3-4 of the connection terminal J5.

5. The microcircuit control system of the otolaryngology complex treatment table as claimed in claim 1, wherein the defogging circuit comprises a connection terminal J3, a connection terminal J4, a timer, relays K9, K10, Y9, Y10, a polar capacitor C5 and a resistor R2, one end of the relay K9 is connected with a pin No. 3 of a connection terminal J3, the other end of the relay K9 is connected with a negative electrode, one group of normally open contacts of the relay K9 are respectively connected with the relays Y9 and Y10, the other ends of the relays K9 and K10 are connected with a negative electrode, the relays Y9 and Y10 are respectively connected with a pin No. 1-2 and a pin No. 3-4 of a connection terminal J4, the pin No. 3 of a connection terminal J3 is respectively connected with a pin No. 4 and a pin No. 8 of the timer and one end of a relay K10, the pins No. 4 and 8 are simultaneously connected with a positive electrode of a polar capacitor C5, the No. 2 and No. 6 pins of the timer are connected with the negative electrode of a polarity capacitor C5, the negative electrode of a polarity capacitor C5 is simultaneously connected with a resistor R2, the timer is combined with a relay K10 to form a delay loop, and the defogging time is controlled through the resistance value of the resistor R2.

6. The microcircuit control system of the ear-nose-throat comprehensive treatment table is characterized in that the lighting circuit comprises a connecting terminal J7, relays K7, K8, Y1 and Y2, one end of the relay K8 is connected with a pin No. 1 of the connecting terminal J3, the other end of the relay K8 is connected with the negative electrode through a normally closed contact of the relay K7, one group of normally open contacts of the relay K8 are respectively connected with the relays Y1 and Y2, the other ends of the relays Y1 and Y2 are connected with the negative electrode, the relays Y1 and Y2 are respectively connected with a pin No. 1-2 and a pin No. 3-4 of the connecting terminal J7, one end of the relay K7 is connected with a pin No. 2 of the connecting terminal J3, and the other end of the relay K7 is connected with the negative electrode.

7. The microcircuit control system of the otolaryngological integrated treatment table according to claim 1, wherein the supply voltage of the connection terminal J1 is 12V ac, and the supply circuit outputs 12V dc voltage VCC after rectification, voltage stabilization and filtering.

8. The microcircuit control system of the otolaryngological integrated treatment table according to claim 5, wherein the timer is 555 timer.

9. The microcircuit control system of the otolaryngology complex treatment table as claimed in claim 2 or 6, characterized in that the other ends of the relays K2 and K3 are connected with the negative pole through the normally closed contact of the relay K4, and the other end of the relay K4 is connected with the negative pole through the normally closed contact of the relay K3 to form the interlock.

Technical Field

The invention relates to the technical field of circuit systems, in particular to a microcircuit control system of an ear-nose-throat comprehensive treatment table.

Background

The comprehensive treatment table for the ear, nose and throat mainly comprises a spray gun, an European-style pipe system, a suction gun, a treatment illuminating lamp and the like, all the devices are mutually matched for use and used for diagnosing and treating the diseases of the ear, nose and throat, all the devices are mutually coordinated to work, and a microcircuit of the comprehensive treatment table for the ear, nose and throat is used for composing a circuit in the original production stage, the transformation of control voltage cannot be realized, the voltage cannot be controlled within a required voltage range and safely used, the time power-off control and the automatic power-off control cannot be realized by the micro-voltage 12V, so that the micro-circuit system cannot realize the centralized control of power supply, European-style pipe devices, illumination, defogging, positive pressure and negative pressure in the comprehensive treatment table for the ear, nose and throat.

Disclosure of Invention

Aiming at the technical defects, the invention provides a microcircuit control system of an ear-nose-throat comprehensive treatment table.

In order to achieve the purpose, the invention adopts the following technical scheme:

a microcircuit control system of an ear-nose-throat comprehensive treatment table comprises a power supply circuit, an European tube circuit, a positive voltage circuit, a negative voltage circuit, a defogging circuit and an illumination circuit;

the power supply circuit comprises a connecting terminal J1, a rectifying module, a voltage stabilizing module and a filtering module, wherein the rectifying module comprises a rectifying bridge, a capacitor C1 and a polar capacitor C2, pins J12 and No. 1 of the connecting terminal are connected to pins 2 and No. 3 of the rectifying bridge, the capacitor C1 is connected with pins 1 and No. 4 of the rectifying bridge, and the polar capacitor C2 is connected with a capacitor C1 in parallel; the voltage stabilizing module adopts three terminal regulator, the anodal input with three terminal regulator of polarized capacitance C2 is connected, there is the nature of remembering electric capacity C2 negative pole to connect the stabiliser common terminal, fuse F1 is connected to the three terminal regulator output, the filtering module is including polarized capacitance C3 and electric capacity C4, fuse F1 is connected with polarized capacitance C3's positive pole, electric capacity C4 and polarized capacitance C3 parallel connection, supply circuit exports direct current voltage VCC after rectification, steady voltage, filtering.

The Europe type tube circuit comprises relays K1, K2, K3, K4, Y13, Y14, a wiring terminal S3, a wiring terminal S1 and a wiring terminal J8, wherein a pin No. 2 of the wiring terminal S3 is connected with one ends of the relays K2 and K3, the other ends of the relays K2 and K3 are connected with the negative electrode through normally closed contacts of the relays K1 and K4, a group of normally open contacts of the relay K2 are connected to provide direct current voltage for one ends of the relays Y13 and Y14, the other ends of the relays Y13 and Y14 are connected with a pin No. 2 of the wiring terminal S1, a pin No. 3 of the wiring terminal S1 is connected with the negative electrode, and the relays Y13 and Y14 are respectively connected with a pin No. 3 and a pin No. 4 of the wiring terminal J8.

The positive voltage circuit comprises relays Y3, Y4, Y5, Y6 and a wiring terminal J6, after another group of normally open contacts of the relay K2 are switched on, direct current voltage is provided for one ends of the relays K3 and K4, the other ends of the relays K3 and K4 are connected with the negative electrode, one ends of the relays K3 and K4 are respectively connected with a No. 1-2 pin and a No. 3-4 pin of the wiring terminal J6, the wiring terminal S2 is connected with one end of the relay K4, the other end of the relay K4 is connected with the negative electrode through the normally closed contact of the relay K3, the relay K4 is connected with one ends of the relays Y5 and Y6, and the other ends of the relays Y5 and Y6 are connected with the negative electrode.

Negative voltage circuit includes binding post J5, relay K5, Y7, Y8, direct current voltage VCC is connected to relay K5 one end, another termination negative pole of relay K5, a set of normally open contact and relay Y7, Y8 one end of relay K5 are connected, the negative pole is connected to relay Y7, the Y8 other end, relay Y7, Y8 are connected with binding post J5's 1-2 number pin and 3-4 number pin respectively again.

The defogging circuit comprises a wiring terminal J3, a wiring terminal J4, a timer, a relay K9, a relay K10, a relay Y9, a relay Y10, a polar capacitor C5 and a resistor R2, wherein one end of the relay K9 is connected with a pin No. 3 of the wiring terminal J3, the other end of the relay K9 is connected with a negative electrode, a group of normally open contacts of the relay K9 are respectively connected with the relays Y9 and Y10, the relays Y9 and Y10 are respectively connected with a pin No. 1-2 and a pin No. 3-4 of the wiring terminal J4, a pin No. 3 of the wiring terminal J3 is respectively connected with a pin No. 4 and 8 of the timer and one end of the relay K10, the pins 4 and 8 of the timer are connected with a positive electrode of the polar capacitor C5, the pins 2 and 6 of the timer are connected with a negative electrode of the polar capacitor C5, a negative electrode of the polar capacitor C5 is simultaneously connected with the resistor R2, and the timer is combined with the, the time for defogging is controlled by the resistance of resistor R2.

The lighting circuit comprises a wiring terminal J7, a relay K7, a relay K8, a relay Y1 and a relay Y2, one end of the relay K8 is connected with a pin No. 1 of a wiring terminal J3, the other end of the relay K8 is connected with the negative pole through a normally closed contact of the relay K7, a group of normally open contacts of the relay K8 are respectively connected with the relay Y1 and the relay Y2, the other ends of the relays Y1 and Y2 are connected with the negative pole, the relays Y1 and Y2 are respectively connected with a pin No. 1-2 and a pin No. 3-4 of the wiring terminal J7, one end of the relay K7 is connected with a pin No. 2 of the wiring terminal J3, and the other end of the relay K7 is.

Furthermore, the power supply voltage of the wiring terminal J1 is 12V alternating current, and the output direct current voltage VCC of the power supply circuit is 12V after rectification, voltage stabilization and filtering.

Further, the timer is a 555 timer.

Further, the other ends of the relays K2 and K3 are connected with the negative pole through a normally closed contact of the relay K4, and the other end of the relay K4 is connected with the negative pole through a normally closed contact of the relay K3 to form interlocking.

Compared with the prior art, the invention provides a microcircuit control system of an ear-nose-throat comprehensive treatment table, which has the following beneficial effects:

(1) the power supply circuit provides stable and safe 12V direct current micro-voltage for the micro-circuit through rectification, filtering and voltage stabilization of 220V voltage, and safe power utilization is achieved.

(2) The micro-circuit control system integrates the power supply circuit, the European tube circuit, the positive voltage circuit, the negative voltage circuit, the defogging circuit and the lighting circuit into a whole, realizes the centralized control of the ear-nose-throat comprehensive treatment table, and can realize the automatic power-off control after the use of each circuit is finished.

(3) The utility model discloses a spray gun function sharing positive pressure pump in european style pipe device and the positive pressure circuit of european style pipe circuit control provides pressure gas, and the two can not use simultaneously in use to avoid bringing the problem that atmospheric pressure is not enough, uses the interlocking function in european style pipe circuit and positive pressure circuit, promptly: the other ends of the relays K2 and K3 are connected with the negative electrode through the normally closed contact of the relay K4, and the other end of the relay K4 is connected with the negative electrode through the normally closed contact of the relay K3 to form interlocking, so that the safety use is achieved.

(4) Defogging circuit is used for realizing the defogging function on otolaryngology integrated treatment platform, adopt the 555 timer in the defogging circuit, timer 4, 8 pin connections simultaneously with the anodal of polarity electric capacity C5 be connected, timer 2, 6 pin connections are at the negative pole of polarity electric capacity C5, the negative pole of polarity electric capacity C5 is connecting resistance R2 simultaneously, the timer combines relay K10 to form delay circuit, the time of defogging is controlled to the resistance through resistance R2, the bigger defogging time of resistance R2 is longer, R2 resistance is less, defogging time is shorter, realize the timing auto-power-off control to defogging function.

Drawings

FIG. 1 is a diagram of a microcircuit control system of an ear-nose-throat comprehensive treatment table according to the present invention;

FIG. 2 is a schematic diagram of a power supply circuit;

FIG. 3 is a schematic diagram of a Europe circuit and a positive voltage circuit;

FIG. 4 is a schematic diagram of a negative voltage circuit;

FIG. 5 is a schematic diagram of a defogging circuit;

FIG. 6 is a schematic diagram of a lighting circuit;

fig. 7 is a schematic diagram of a connection terminal J1;

fig. 8 is a schematic diagram of a connection terminal J4;

fig. 9 is a schematic diagram of the connection terminal S1;

fig. 10 is a schematic diagram of the connection terminal S2;

fig. 11 is a schematic diagram of the connection terminal S3.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-11, a microcircuit control system of an ear-nose-throat comprehensive treatment table comprises a power supply circuit, a euro-tube circuit, a positive voltage circuit, a negative voltage circuit, a defogging circuit and an illumination circuit;

the power supply circuit comprises a connecting terminal J1, a rectifying module, a voltage stabilizing module and a filtering module, wherein the rectifying module comprises a rectifying bridge, a capacitor C1 and a polar capacitor C2, pins J12 and No. 1 of the connecting terminal are connected to pins 2 and No. 3 of the rectifying bridge, the capacitor C1 is connected with pins 1 and No. 4 of the rectifying bridge, and the polar capacitor C2 is connected with a capacitor C1 in parallel; the voltage stabilizing module adopts three terminal regulator, the anodal input with three terminal regulator of polarized capacitance C2 is connected, there is the nature of remembering electric capacity C2 negative pole to connect the stabiliser common terminal, fuse F1 is connected to the three terminal regulator output, the filtering module is including polarized capacitance C3 and electric capacity C4, fuse F1 is connected with polarized capacitance C3's positive pole, electric capacity C4 and polarized capacitance C3 parallel connection, supply circuit exports direct current voltage VCC after rectification, steady voltage, filtering.

The Europe type tube circuit comprises relays K1, K2, K3, K4, Y13, Y14, a wiring terminal S3, a wiring terminal S1 and a wiring terminal J8, wherein a pin No. 2 of the wiring terminal S3 is connected with one ends of the relays K2 and K3, the other ends of the relays K2 and K3 are connected with the negative electrode through normally closed contacts of the relays K1 and K4, a group of normally open contacts of the relay K2 are connected to provide direct current voltage for one ends of the relays Y13 and Y14, the other ends of the relays Y13 and Y14 are connected with a pin No. 2 of the wiring terminal S1, a pin No. 3 of the wiring terminal S1 is connected with the negative electrode, and the relays Y13 and Y14 are respectively connected with a pin No. 3 and a pin No. 4 of the wiring terminal J8.

The positive voltage circuit comprises relays Y3, Y4, Y5, Y6 and a wiring terminal J6, after another group of normally open contacts of the relay K2 are switched on, direct current voltage is provided for one ends of the relays K3 and K4, the other ends of the relays K3 and K4 are connected with the negative electrode, one ends of the relays K3 and K4 are respectively connected with a No. 1-2 pin and a No. 3-4 pin of the wiring terminal J6, the wiring terminal S2 is connected with one end of the relay K4, the other end of the relay K4 is connected with the negative electrode through the normally closed contact of the relay K3, the relay K4 is connected with one ends of the relays Y5 and Y6, and the other ends of the relays Y5 and Y6 are connected with the negative electrode.

Negative voltage circuit includes binding post J5, relay K5, Y7, Y8, direct current voltage VCC is connected to relay K5 one end, another termination negative pole of relay K5, a set of normally open contact and relay Y7, Y8 one end of relay K5 are connected, the negative pole is connected to relay Y7, the Y8 other end, relay Y7, Y8 are connected with binding post J5's 1-2 number pin and 3-4 number pin respectively again.

The defogging circuit comprises a wiring terminal J3, a wiring terminal J4, a timer, a relay K9, a relay K10, a relay Y9, a relay Y10, a polar capacitor C5 and a resistor R2, wherein one end of the relay K9 is connected with a pin No. 3 of the wiring terminal J3, the other end of the relay K9 is connected with a negative electrode, a group of normally open contacts of the relay K9 are respectively connected with the relays Y9 and Y10, the relays Y9 and Y10 are respectively connected with a pin No. 1-2 and a pin No. 3-4 of the wiring terminal J4, a pin No. 3 of the wiring terminal J3 is respectively connected with a pin No. 4 and 8 of the timer and one end of the relay K10, the pins 4 and 8 of the timer are connected with a positive electrode of the polar capacitor C5, the pins 2 and 6 of the timer are connected with a negative electrode of the polar capacitor C5, a negative electrode of the polar capacitor C5 is simultaneously connected with the resistor R2, and the timer is combined with the, the time for defogging is controlled by the resistance of resistor R2.

The lighting circuit comprises a wiring terminal J7, a relay K7, a relay K8, a relay Y1 and a relay Y2, one end of the relay K8 is connected with a pin No. 1 of a wiring terminal J3, the other end of the relay K8 is connected with the negative pole through a normally closed contact of the relay K7, a group of normally open contacts of the relay K8 are respectively connected with the relay Y1 and the relay Y2, the other ends of the relays Y1 and Y2 are connected with the negative pole, the relays Y1 and Y2 are respectively connected with a pin No. 1-2 and a pin No. 3-4 of the wiring terminal J7, one end of the relay K7 is connected with a pin No. 2 of the wiring terminal J3, and the other end of the relay K7 is.

Furthermore, the power supply voltage of the wiring terminal J1 is 12V alternating current, and the output direct current voltage VCC of the power supply circuit is 12V after rectification, voltage stabilization and filtering.

Further, the timer is a 555 timer.

Further, the other ends of the relays K2 and K3 are connected with the negative pole through a normally closed contact of the relay K4, and the other end of the relay K4 is connected with the negative pole through a normally closed contact of the relay K3 to form interlocking.

The working principle is as follows:

a microcircuit control system of an ear-nose-throat comprehensive treatment table comprises a power supply circuit, a European tube circuit, a positive voltage circuit, a negative voltage circuit, a defogging circuit and a lighting circuit.

The ear-nose-throat comprehensive treatment table is connected with 220V alternating current through a special power line, a leakage protector, a surge protector and a power main switch are arranged in the ear-nose-throat comprehensive treatment table, the 220V alternating current is connected to a wiring terminal J2 through the leakage protector, the surge protector and the power main switch, the 220V alternating current is connected to normally open pins of all relays through pins of a wiring terminal J2 through connecting wires on a microcircuit, meanwhile, the wiring terminal J2 is connected with the wiring terminal J1, and voltage led out of the wiring terminal J2 is alternating current voltage which is obtained by converting 220V into 12V through a transformer; the pins of the connecting terminal J12 and the pin 1 are connected to the pins 2 and 3 of the rectifier bridge, the capacitor C1 is connected with the pins 1 and 4 of the rectifier bridge, the polar capacitor C2 is connected with the capacitor C1 in parallel, the anode of the polar capacitor C2 is connected with the input end of a three-terminal regulator, the cathode of the polar capacitor C2 is connected with the common end of the regulator, and the output end of the three-terminal regulator is connected with a fuse F1; fuse F1 is connected with the anodal of having polarity electric capacity C3, electric capacity C4 and having polarity electric capacity C3 parallel connection, electric capacity C1, C4 are 0.1uF, there are polarity electric capacity C2, C3 to be 220uF, binding post J1's supply voltage is 12V alternating current, and 12V direct current voltage VCC is exported after power supply circuit commutates, steady voltage and filtering, and electric capacity C4 is connected with resistance R1 and LED, and R1 resistance is 1K, plays the effect of current-limiting, and the LED is the power indicator.

The European pipe circuit is used for controlling the European pipe device, the European pipe device comprises an European pipe switch, a foot switch, a suction gun, a positive pressure pump and an electromagnetic valve, and the European pipe device is connected with the European pipe circuit through a wiring terminal S3, a wiring terminal S1, a wiring terminal J8 and a wiring terminal J6.

The European tube switch on the ear-nose-throat comprehensive treatment table is connected to a connecting terminal S3, a pin No. 2 of the connecting terminal S3 is connected with one end of a relay K2 and one end of a relay K3, the European tube switch is opened when the European tube switch is used, the pin No. 2 of the connecting terminal S3 is 12V at the moment, namely one end of the relay K2 and one end of the relay K3 are 12V, the other end of the relays K2 and K3 is connected with a negative electrode through a normally closed contact of the relays K1 and K4, the relays K2 and K3 are attracted, a group of normally open contacts of the relay K2 are connected to provide 12V direct-current voltage for one end of the relays Y13 and Y14, the other ends of the relays Y13 and Y14 are connected with a pin No. 2 of the connecting terminal S1, a pin No. 3 of the connecting terminal S9 is connected with a negative electrode, the relays Y connecting terminal Y13 and Y14 are respectively connected with a pin No. 3 and a pin 4 of a, when the ear-nose-throat combination treatment table is used, after the foot switch is stepped on, the relays Y13 and Y14 are attracted, the No. 3 pin and the No. 4 pin of the wiring terminal J8 have 220V voltage, the electromagnetic valve on the ear-nose-throat combination treatment table is connected to the wiring terminal J8, and the electromagnetic valve is electrified at the moment.

12V direct current voltage is provided for one ends of the relays K3 and K4 after the other group of normally open contacts of the relay K2 are switched on and then 12V direct current voltage is provided, the other ends of the relays K3 and K4 are connected with the negative electrodes, the relays Y3 and Y4 are attracted, one ends of the relays K3 and K4 are respectively connected with No. 1-2 pins and No. 3-4 pins of a wiring terminal J6, 220V voltage is obtained from No. 1-2 pins and No. 3-4 pins of the wiring terminal J6, a positive pressure pump on an ear-nose-throat comprehensive treatment table is connected to the wiring terminal J6, and the positive pressure pump is electrified at the moment; a group of normally open contacts of the relay K3 are connected with 12V in parallel with one end of the relay K3 to enable the relays K2 and K3 to form self locking, the European tube switch is divided into a point-moving switch and a toggle switch, when the point-moving switch is adopted, the self locking function is needed, after the European tube device is used, the European tube switch connected to the wiring terminal S3 is closed, the No. 3 pin of the wiring terminal S3 is 12V at the moment, the other end of the relay K1 is connected with a negative electrode, the relay K1 is attracted, the normally closed contact of the relay K1 is opened, the negative electrodes of the relays K2 and K3 are disconnected, and the opening action on the European tube circuit is closed immediately.

The positive voltage circuit is used for realizing the function of a spray gun on the ear-nose-throat comprehensive treatment table.

The positive pressure travel switch of the spray gun is connected to a terminal S2, and is turned on when in use, the connecting terminal S2 is connected with one end of the relay K4, the No. 3 pin of the connecting terminal S2 is 12V at the moment, namely, one end of the relay K4 is 12V, the other end of the relay K4 is connected with the negative pole through the normally closed contact of the relay K3, the relay K4 is attracted, the relay K4 is connected with one end of the relays Y5 and Y6, a group of normally open contacts of the relay K4 provides 12V for one end of the relays Y5 and Y6 after being switched on for 12V, the other ends of the relays Y5 and Y6 are connected with negative electrodes, the relays Y5 and Y6 are attracted, the pins 1-2 and 3-4 of the wiring terminal J6 have 220V power supplies, a positive pressure pump connected to the wiring terminal J6 is electrified, after the use is finished, and closing the positive pressure travel switch, putting down the spray gun, and immediately closing the action of opening the positive pressure circuit.

The spray gun function in the european pipe device and the positive pressure circuit controlled by the european pipe circuit is to share one positive pressure pump to provide pressure gas, and the two can not be used simultaneously in use to avoid the problem of insufficient gas pressure, so an interlocking function is used in the european pipe circuit and the positive pressure circuit, namely: the other ends of the relays K2 and K3 are connected with the negative pole through the normally closed contact of the relay K4, and the other end of the relay K4 is connected with the negative pole through the normally closed contact of the relay K3 to form an interlock.

The negative pressure circuit is used for controlling a suction gun and a negative pressure pump on the ear-nose-throat comprehensive treatment table, and the suction gun has a suction function.

The negative pressure travel switch of the suction gun is connected to a connecting terminal S2, when the suction gun is used, the negative pressure travel switch is turned on, a pin No. 2 of the connecting terminal S2 is 12V at this time, namely one end of a relay K5 is 12V, the other end of the relay K5 is connected with a negative electrode, a relay K5 is attracted, a group of normally open contacts of the relay K5 are connected with one ends of relays Y7 and Y8, a group of normally open contacts of a relay K5 are connected with 12V and then provide 12V for one ends of relays Y7 and Y8, the other ends of the relays Y7 and Y8 are connected with the negative electrode, relays Y5 and Y6 are attracted, the relays Y7 and Y8 are respectively connected with a pin No. 1-2 and a pin No. 3-4 of a connecting terminal J5, the pin No. 1-2 and the pin No. 3-4 of the connecting terminal J5 have 220V voltage, the pump is connected to the J5, the suction gun, the negative pressure travel switch is closed, and the action of opening in the negative pressure circuit is immediately closed.

The defogging circuit is used for realizing a defogging function on the ear-nose-throat comprehensive treatment table, and the defogging function is realized through the air heater.

The defogging button on the ear-nose-throat comprehensive treatment table is connected to a connection terminal J3, when the defogging button is pressed down in use, a pin No. 3 of a connection terminal J3 is 12V at the moment, one end of a relay K9 is connected with a pin No. 3 of a connection terminal J3, namely one end of a relay K9 is 12V, the other end of the relay K9 is connected with a negative electrode, a relay K9 is attracted, a group of normally open contacts of the relay K9 are respectively connected with relays Y9 and Y10, a group of normally open contacts of a relay K9 are connected with 12V and then provide 12V for one ends of relays Y9 and Y10, the other ends of the relays Y9 and Y10 are connected with the negative electrodes, the relays Y9 and Y10 are attracted, the relays Y9 and Y10 are respectively connected with a pin No. 1-2 and a pin No. 3-4 of a connection terminal J4, a pin No. 1-2 and a pin 3-4 of the connection terminal J4 and a 220V voltage is provided, at the moment, the air heater is electrified; the pin No. 3 of the connecting terminal J3 is respectively connected with the pin No. 4 and 8 of a timer and one end of a relay K10, the instant when the connecting terminal J3 is switched on at 12V is provided with a trigger signal for the timer, the timer adopts a 555 timer, the pin No. 4 and 8 of the timer are connected and are simultaneously connected with the positive electrode of a polar capacitor C5, the pin No. 2 and 6 of the timer are connected with the negative electrode of a polar capacitor C5, the negative electrode of the polar capacitor C5 is simultaneously connected with a resistor R2, the timer forms a delay loop in combination with the relay K10, the demisting time is controlled by the resistance value of the resistor R2, the larger the resistance value of the resistor R2 is, the smaller the resistance value of the R2 is, the shorter the demisting time is, the resistance value of the resistor R2 is 56K, the resistance value of the polar capacitor C5 is 220uF, the demisting time is 15 seconds in practical use, and the voltage of the pin No. 3, after 15 seconds, the electric appliance K10 is disconnected, the connection terminal J3 loses 12V voltage, the relay K9 is immediately disconnected, and the defogging function is closed.

The lighting circuit is used for realizing the lighting function on the ear-nose-throat comprehensive treatment table.

The lighting switch button on the ear-nose-throat comprehensive treatment table is connected with a connecting terminal J3, when the lighting switch button is used, one end of the relay K8 is connected with a pin No. 1 of a connecting terminal J3, the pin No. 1 of the connecting terminal J3 is 12V at the moment, namely one end of the relay K8 is 12V, the other end of the relay K8 is connected with a negative electrode through a normally closed contact of a relay K7, the relay K8 is attracted, one group of normally open contacts of the relay K8 are respectively connected with relays Y1 and Y2, a group of normally open contacts of the relay K8 are connected with 12V and then provide 12V voltage for one ends of relays Y1 and Y2, the other ends of the relays Y1 and Y2 are connected with a negative electrode, the relays Y1 and Y2 are attracted, the relays Y1 and Y2 are respectively connected with a pin No. 1-2 and a pin No. 3-4 of a connecting terminal J7, and a pin No. 1-2 and a pin 3-4 of a connecting terminal, switch power on otolaryngology comprehensive treatment platform connects on binding post J7, and switch power provides 12V voltage for the light this moment, and another group of normally open contact of relay K8 connects 12V and the parallelly connected messenger relay K8 of relay K8 other end and forms the auto-lock, after the use, presses the lighting switch button, relay K7 one end is connected with binding post J3's No. 2 pin, and binding post J3's No. 2 pin is 12V this moment, and then relay K7's one end is 12V, relay K7's another termination negative pole, relay K7 actuation, relay K7's normally closed contact is opened, and relay K8 negative pole disconnection, the action of opening in the above lighting circuit is closed immediately.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.