CN212966400U

CN212966400U - Automatic switching control circuit of clinical laboratory room door of hospital

Info

Publication number: CN212966400U
Application number: CN202021859746.5U
Authority: CN
Inventors: 朱晓燕; 曹帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-04-13
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to the field of medical equipment, especially, relate to an automatic switching control circuit of clinical laboratory room door of hospital. The utility model provides an automatic switching control circuit of hospital's inspection administrative or technical offices door that whether ability real-time supervision door was closed. In order to solve the technical problem, the automatic opening and closing control circuit for the hospital clinical laboratory door comprises a power supply circuit unit, a fuse, a power switch, a first reed switch sensor, a detection circuit, a second reed switch sensor and the like; the output end of the power supply circuit unit is connected with the input end of the fuse, the output end of the fuse is connected with the input end of the power switch, and the output end of the power switch is connected with the input end of the first reed switch sensor. The utility model discloses a power supply circuit unit, fuse, switch, first tongue tube sensor, detection circuitry and second tongue tube sensor's effect can detect whether the door is closed.

Description

Automatic switching control circuit of clinical laboratory room door of hospital

Technical Field

The utility model relates to the field of medical equipment, especially, relate to an automatic switching control circuit of clinical laboratory room door of hospital.

Background

When a hospital detects a patient, the patient needs to be closed to ensure privacy safety of the patient, but because a doctor forgets to close the door sometimes or the door is not closed well, the patient waits for detection outdoors and directly pushes the door to enter, and the privacy of the patient who is detecting can be threatened.

How to design an automatic opening and closing control circuit of a hospital inspection department door capable of monitoring whether the door is closed in real time becomes a problem to be solved at present.

SUMMERY OF THE UTILITY MODEL

In order to overcome because the doctor can forget sometimes and close the door, perhaps the door is not closed, lead to waiting to detect in the open air and directly pushing the door and go into, can be carrying out the shortcoming that the patient privacy that detects constitutes the threat well, the technical problem of the utility model is that: the automatic opening and closing control circuit for the hospital inspection department door can monitor whether the door is closed or not in real time.

The utility model provides an automatic switching control circuit of clinical laboratory room door of hospital, including power supply circuit unit, fuse, switch, first tongue tube sensor, detection circuitry and second tongue tube sensor, the output of power supply circuit unit is connected with the input of fuse, the output of fuse is connected with switch's input, switch's output is connected with first tongue tube sensor's input, first tongue tube sensor's output is connected with detection circuitry's input, second tongue tube sensor's output is connected with detection circuitry's input.

More preferably, the door closing device further comprises an indicator light circuit, the output end of the detection circuit is connected with the input end of the indicator light circuit, and whether the reed switch is in contact with the magnet on the door or not can be judged through the on-off of the indicator light circuit, so that whether the door is closed or not is judged.

More preferably, the door alarm device further comprises an and gate circuit, an alarm frequency generating circuit, a triode driving circuit and a buzzer, wherein the output end of the detection circuit is connected with the input end of the and gate circuit, the output end of the and gate circuit is connected with the input end of the alarm frequency generating circuit, the output end of the alarm frequency generating circuit is connected with the input end of the triode driving circuit, the output end of the triode driving circuit is connected with the input end of the buzzer, and when the reed pipe is not in contact with the magnet on the door, the and gate circuit controls the alarm frequency generating circuit, so that the triode driving circuit drives the buzzer, and a user is prompted that the door is not closed.

More preferably, the power supply circuit unit, the FUSE, the power switch, the first reed switch sensor, the detection circuit and the second reed switch sensor include a voltage comparator LM393A-U2, a switch S1, a FUSE1, a seventh resistor R7, an eighth resistor R8, a potentiometer VR1, a potentiometer VR2, a reed switch G1, a reed switch G2, a second capacitor C2 and a third capacitor C3, one end of the switch S1 is connected to +5V, the other end of the switch S1 is connected to one end of the FUSE f 42, the other end of the FUSE fus 1 is connected to one end of the seventh resistor R9, one end of the eighth resistor R8, a fixed end of the potentiometer VR1, a fixed end of the potentiometer VR2 and an 8 pin of the voltage comparator LM A-U2, the first VCC 1 of the potentiometer VR1 is connected to one end of the first resistor VR 36393R 1, and the other end of the first resistor VR 365958 is connected to a fixed end of the FUSE 36393, The pin 2 of the voltage comparator LM393A-U2 is connected with one end of a second capacitor C2, the other end of the reed switch G1 is connected with the other end of a second capacitor C2, the other end of the second capacitor C2 is grounded, the other end of the eighth resistor R8 is respectively connected with one end of the reed switch G2, the pin 6 of the voltage comparator LM 37393 84-U2 and one end of a third capacitor C3, the other end of the reed switch G2 is connected with the other end of a third capacitor C3, the other end of the third capacitor C3 is grounded, the adjustable end of the potentiometer VR1 is connected with the pin 3 of the voltage comparator LM393A-U2, the other end of the potentiometer VR1 is grounded, the adjustable end of the potentiometer VR2 is connected with the pin 5 of the voltage comparator LM393A-U2, the other fixed end of the potentiometer VR2 is grounded, and the pin LM 53-U393 864 is grounded.

More preferably, the indicator light circuit comprises a light emitting diode VD1, a light emitting diode VD2, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4, wherein an anode of the light emitting diode VD1 is connected to a fixed end of a potentiometer VR2, one end of a second resistor R2, an anode of a light emitting diode VD2 and one end of a fourth resistor R4, a cathode of the light emitting diode VD1 is connected to one end of a first resistor R1, another end of the first resistor R1 is connected to another end of a second resistor R2 and a pin 1 of a voltage comparator LM393A-U2, a cathode of the light emitting diode VD2 is connected to one end of a third resistor R3, and another end of the third resistor R3 is connected to another end of a fourth resistor R4 and a pin LM 393A-U2.

More preferably, the and gate circuit, the alarm frequency generating circuit, the triode driving circuit and the buzzer comprise a time base integrated circuit NE555-U1, a four 2 input nand gate CD4011-U3, a diode D1, a diode D2, a fifth resistor R5, a sixth resistor R6, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, an electrolytic capacitor EC1, a first capacitor C1, a fourth capacitor C1, an NPN type triode Q1, a PNP type triode Q1 and an alarm BZ1, wherein an anode of the diode D1 is connected with a pin 1 of the voltage comparator LM393 1-U1, a cathode 393 of the diode D1 is connected with a pin 7 of the voltage comparator LM 1-U1, and a cathode of the diode D1 is connected with a pin ten ends of the ninth resistor R1, the ninth resistor R1 and the ninth resistor R1, the other end of the tenth resistor R10 is connected with the base of an NPN triode Q1, the emitter of the NPN triode Q1 is grounded, the collector of the NPN triode Q1 is respectively connected with one end of a fifth resistor R5 and 2 pins of a time-base integrated circuit NE555-U1, the other end of the fifth resistor R5 is respectively connected with one end of a fourth resistor R4, one end of a sixth resistor R6, 4 pins and 8 pins of a time-base integrated circuit NE555-U1 and 14 pins of a four 2-input NAND gate CD4011-U3, 4 pins of the time-base integrated circuit NE555-U1 are connected with a power source VCC, the other end of the sixth resistor R6 is respectively connected with the positive electrode of an electrolytic capacitor EC1, 6 pins and 7 pins of a time-base integrated circuit NE555-U1, the negative electrode of the electrolytic capacitor EC1 is grounded, 1 pin of the time-base integrated circuit NE555-U1 is grounded, pin NE555-U1 is connected with the input NAND gate U4011 pin of the four 2U 4011 pin of the time-U3, the 5 feet of the time base integrated circuit NE555-U1 are connected with one end of a first capacitor C1, the other end of the first capacitor C1 is grounded, the 2 feet of the four 2-input NAND gates CD4011-U3 are connected with one end of a twelfth resistor R12, the other end of the twelfth resistor R12 is respectively connected with one end of a thirteenth resistor R13 and one end of a fourth capacitor C4, the other end of the thirteenth resistor R13 is respectively connected with the 3 feet, the 5 feet and the 6 feet of the four 2-input NAND gates CD4011-U3, the other end of the fourth capacitor C4 is respectively connected with the 4 feet of the four 2-input NAND gates CD4011-U3 and one end of an eleventh resistor R11, the 7 feet of the four 2-input NAND gates CD4011-U3 are grounded, the other end of the eleventh resistor R11 is connected with the base of a PNP triode Q2, the emitter 2 of the PNP triode Q A-U2 is connected with the pin 393 of the voltage comparator U8, the collector of the PNP triode Q2 is connected with one end of a fourteenth resistor R14, the other end of the fourteenth resistor R14 is connected with one end of an alarm BZ1, and the other end of the alarm BZ1 is grounded.

The utility model has the advantages of as follows: the utility model can detect whether the door is closed or not through the action of the power supply circuit unit, the fuse, the power switch, the first reed switch sensor, the detection circuit and the second reed switch sensor; through the action of the indicating lamp circuit, whether the reed switch is in contact with the magnet on the door or not can be judged, so that whether the door is closed or not is judged; through the effect of AND gate circuit, alarm frequency generating circuit, triode drive circuit and bee calling organ, can be when the door is not closed, through bee calling organ suggestion user.

Drawings

Fig. 1 is a circuit block diagram of the present invention.

Fig. 2 is a schematic circuit diagram of the present invention.

The meaning of the reference symbols in the figures: 1. the device comprises a power supply circuit unit, 2, a fuse, 3, a power switch, 4, a first reed switch sensor, 5, a detection circuit, 6, a second reed switch sensor, 7, an AND gate circuit, 8, an alarm frequency generation circuit, 9, an indicator light circuit, 10, a triode driving circuit, 11 and a buzzer.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

Example 1

The utility model provides an automatic switching control circuit of clinical laboratory room door of hospital, as shown in figure 1, including power supply circuit unit 1, fuse 2, switch 3, first tongue tube sensor 4, detection circuitry 5 and second tongue tube sensor 6, power supply circuit unit 1's output is connected with fuse 2's input, fuse 2's output is connected with switch 3's input, switch 3's output is connected with first tongue tube sensor 4's input, first tongue tube sensor 4's output is connected with detection circuitry 5's input, second tongue tube sensor 6's output is connected with detection circuitry 5's input.

After the automatic opening and closing control circuit of the door of the hospital clinical laboratory is connected with the power supply circuit unit 1, a user presses the power switch 3, the automatic opening and closing control circuit of the door of the hospital clinical laboratory is electrified, whether the door is closed or not is detected through the first reed switch sensor 4 and the second reed switch sensor 6 at the moment, meanwhile, the user can adjust the sensitivity of the first reed switch sensor 4 and the second reed switch sensor 6 through the potentiometer VR1 and the potentiometer VR2, when the reed switch G1 and the reed switch G2 are in contact with a magnet on the door, the detection circuit 5 outputs a low level, and when one of the reed switch G1 and the reed switch G2 is not in contact with the magnet, the detection circuit 5 outputs a high level.

Example 2

On the basis of embodiment 1, as shown in fig. 1, the door opening and closing detection device further includes an indicator light circuit 9, an output end of the detection circuit 5 is connected to an input end of the indicator light circuit 9, and whether the reed switch is in contact with the magnet on the door or not can be judged through on and off of the indicator light circuit 9, so as to judge whether the door is closed or not.

Through the on-off of indicator light circuit 9, can judge whether tongue tube contacts with the magnet on the door to judge whether the door is closed.

Example 3

On the basis of the embodiment 2, as shown in fig. 2, the door alarm device further includes an and circuit 7, an alarm frequency generation circuit 8, a triode drive circuit 10 and a buzzer 11, wherein an output end of the detection circuit 5 is connected with an input end of the and circuit 7, an output end of the and circuit 7 is connected with an input end of the alarm frequency generation circuit 8, an output end of the alarm frequency generation circuit 8 is connected with an input end of the triode drive circuit 10, an output end of the triode drive circuit 10 is connected with an input end of the buzzer 11, and when the reed switch is not in contact with the magnet on the door, the and circuit 7 controls the alarm frequency generation circuit 8, so that the triode drive circuit 10 drives the buzzer 11, thereby prompting a user that the door is not closed.

When the reed switch is not in contact with the magnet on the door, the alarm frequency generating circuit 8 is controlled by the AND circuit 7, so that the triode driving circuit 10 drives the buzzer 11, thereby prompting a user that the door is not closed.

The power supply circuit unit 1, the FUSE 2, the power switch 3, the first reed switch sensor 4, the detection circuit 5 and the second reed switch sensor 6 comprise voltage comparators LM393A-U2, a switch S1, a FUSE1, a seventh resistor R7, an eighth resistor R8, a potentiometer VR1, a potentiometer VR2, a reed switch G1, a reed switch G2, a second capacitor C2 and a third capacitor C3, one end of the switch S1 is connected to a power supply terminal +5V, the other end of the switch S1 is connected to one end of the FUSE 42, the other end of the FUSE fus 1 is connected to one end of the seventh resistor R9, one end of the eighth resistor R8, a fixed end of the potentiometer VR1, a fixed end of the potentiometer VR2 and a fixed end of the voltage comparator LM393A-U2, the first VCC 1 of the potentiometer VR 7 is connected to one end of the reed switch LM 36393R 1, and the other end of the seventh resistor VR 365958 is connected to a power supply terminal 36393, The pin 2 of the voltage comparator LM393A-U2 is connected with one end of a second capacitor C2, the other end of the reed switch G1 is connected with the other end of a second capacitor C2, the other end of the second capacitor C2 is grounded, the other end of the eighth resistor R8 is respectively connected with one end of the reed switch G2, the pin 6 of the voltage comparator LM 37393 84-U2 and one end of a third capacitor C3, the other end of the reed switch G2 is connected with the other end of a third capacitor C3, the other end of the third capacitor C3 is grounded, the adjustable end of the potentiometer VR1 is connected with the pin 3 of the voltage comparator LM393A-U2, the other end of the potentiometer VR1 is grounded, the adjustable end of the potentiometer VR2 is connected with the pin 5 of the voltage comparator LM393A-U2, the other fixed end of the potentiometer VR2 is grounded, and the pin LM 53-U393 864 is grounded.

The indicator lamp circuit 9 comprises a light emitting diode VD1, a light emitting diode VD2, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4, wherein the anode of the light emitting diode VD1 is respectively connected with a fixed end of a potentiometer VR2, one end of a second resistor R2, the anode of the light emitting diode VD2 and one end of a fourth resistor R4, the cathode of the light emitting diode VD1 is connected with one end of a first resistor R1, the other end of the first resistor R1 is respectively connected with the other end of the second resistor R2 and a pin 1 of a voltage comparator LM393A-U2, the cathode of the light emitting diode VD2 is connected with one end of a third resistor R3, and the other end of the third resistor R3 is respectively connected with the other end of a fourth resistor R4 and a pin 1 of the voltage comparator LM 393A-U2.

The AND gate circuit 7, the alarm frequency generating circuit 8, the triode drive circuit 10 and the buzzer 11 comprise a time base integrated circuit NE555-U1, a four 2 input NAND gate CD4011-U3, a diode D1, a diode D2, a fifth resistor R5, a sixth resistor R6, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, an electrolytic capacitor EC1, a first capacitor C1, a fourth capacitor C1, an NPN type triode Q1, a PNP type triode Q1 and an alarm BZ1, wherein the anode of the diode D1 is connected with the 1 pin of the voltage comparator LM 1-U1, the anode of the diode D1 is connected with the 7 pin of the voltage comparator LM393 1-U1, the cathode of the diode D1 is respectively connected with the cathode of the diode D1, the tenth resistor R1 and the other end of the ninth resistor R1, the resistor R1 are respectively connected with the ground, the other end of the tenth resistor R10 is connected with the base of an NPN triode Q1, the emitter of the NPN triode Q1 is grounded, the collector of the NPN triode Q1 is respectively connected with one end of a fifth resistor R5 and 2 pins of a time-base integrated circuit NE555-U1, the other end of the fifth resistor R5 is respectively connected with one end of a fourth resistor R4, one end of a sixth resistor R6, 4 pins and 8 pins of a time-base integrated circuit NE555-U1 and 14 pins of a four 2-input NAND gate CD4011-U3, 4 pins of the time-base integrated circuit NE555-U1 are connected with a power source VCC, the other end of the sixth resistor R6 is respectively connected with the positive electrode of an electrolytic capacitor EC1, 6 pins and 7 pins of a time-base integrated circuit NE555-U1, the negative electrode of the electrolytic capacitor EC1 is grounded, 1 pin of the time-base integrated circuit NE555-U1 is grounded, pin NE555-U1 is connected with the input NAND gate U4011 pin of the four 2U 4011 pin of the time-U3, the 5 feet of the time base integrated circuit NE555-U1 are connected with one end of a first capacitor C1, the other end of the first capacitor C1 is grounded, the 2 feet of the four 2-input NAND gates CD4011-U3 are connected with one end of a twelfth resistor R12, the other end of the twelfth resistor R12 is respectively connected with one end of a thirteenth resistor R13 and one end of a fourth capacitor C4, the other end of the thirteenth resistor R13 is respectively connected with the 3 feet, the 5 feet and the 6 feet of the four 2-input NAND gates CD4011-U3, the other end of the fourth capacitor C4 is respectively connected with the 4 feet of the four 2-input NAND gates CD4011-U3 and one end of an eleventh resistor R11, the 7 feet of the four 2-input NAND gates CD4011-U3 are grounded, the other end of the eleventh resistor R11 is connected with the base of a PNP triode Q2, the emitter 2 of the PNP triode Q A-U2 is connected with the pin 393 of the voltage comparator U8, the collector of the PNP triode Q2 is connected with one end of a fourteenth resistor R14, the other end of the fourteenth resistor R14 is connected with one end of an alarm BZ1, and the other end of the alarm BZ1 is grounded.

After the automatic opening and closing control circuit of the hospital clinical laboratory door is electrified, whether the door is closed or not is detected through the first reed switch sensor 4 and the second reed switch sensor 6, meanwhile, a user can adjust the sensitivity of the first reed switch sensor 4 and the second reed switch sensor 6 through the potentiometer VR1 and the potentiometer VR2, when the reed switch G1 and the reed switch G2 are in contact with a magnet on the door, the detection circuit 5 outputs low level, at the moment, the indicator light circuit 9 is completely lightened, at the same time, the detection circuit 5 outputs low level to the base of the NPN type triode Q1, so that the collector of the NPN type triode NE 1 outputs high level, the time base integrated circuit 555-U1 and the four 2 input CD4011-U3 do not work, when one of the reed switch G1 and the reed switch G2 is not in contact with the magnet, the detection circuit 5 outputs high level, at the moment, the indicator light corresponding to the reed switch based on the magnet is lightened, whether the reed switch is in contact with a magnet on the door can be judged by turning on and off the indicator light circuit 9, whether the door is closed is judged, meanwhile, the detection circuit 5 outputs a high level to the base electrode of the NPN type triode Q1, so that the collector electrode of the NPN type triode Q1 outputs a low level to a pin 2 of the time base integrated circuit NE555-U1, the time base integrated circuit NE555-U1 starts to work, then a time delay circuit is formed by the sixth resistor R6 and the electrolytic capacitor EC1, pulses are formed to a four 2-input NAND gate CD4011-U3, and the triode driving circuit 10 drives the buzzer 11, so that a user is prompted that the door is not closed.

While the disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Accordingly, the scope of the present disclosure should not be limited to the above-described embodiments, but should be defined not only by the appended claims, but also by equivalents thereof.

Claims

1. The utility model provides an automatic switching control circuit of clinical laboratory room door of hospital, including power supply circuit unit (1), fuse (2) and switch (3), the output of power supply circuit unit (1) is connected with the input of fuse (2), the output of fuse (2) is connected with the input of switch (3), characterized by: the power supply is characterized by further comprising a first reed switch sensor (4), a detection circuit (5) and a second reed switch sensor (6), wherein the output end of the power supply switch (3) is connected with the input end of the first reed switch sensor (4), the output end of the first reed switch sensor (4) is connected with the input end of the detection circuit (5), and the output end of the second reed switch sensor (6) is connected with the input end of the detection circuit (5).

2. The automatic opening and closing control circuit of the hospital clinical laboratory door according to claim 1, wherein: the automatic door closing device is characterized by further comprising an indicating lamp circuit (9), wherein the output end of the detection circuit (5) is connected with the input end of the indicating lamp circuit (9), and whether the reed switch is in contact with a magnet on the door or not can be judged through the on-off of the indicating lamp circuit (9), so that whether the door is closed or not is judged.

3. The automatic opening and closing control circuit of the hospital clinical laboratory door according to claim 2, wherein: the alarm device is characterized by further comprising an AND gate circuit (7), an alarm frequency generating circuit (8), a triode driving circuit (10) and a buzzer (11), wherein the output end of the detection circuit (5) is connected with the input end of the AND gate circuit (7), the output end of the AND gate circuit (7) is connected with the input end of the alarm frequency generating circuit (8), the output end of the alarm frequency generating circuit (8) is connected with the input end of the triode driving circuit (10), the output end of the triode driving circuit (10) is connected with the input end of the buzzer (11), and when a reed pipe is not in contact with a magnet on a door, the alarm frequency generating circuit (8) is controlled through the AND gate circuit (7), so that the buzzer (11) is driven by the triode driving circuit (10) to prompt a user that the door is not closed.

4. The automatic opening and closing control circuit of the hospital clinical laboratory door according to claim 3, wherein: the power supply circuit unit (1), the FUSE (2), the power switch (3), the first reed switch sensor (4), the detection circuit (5) and the second reed switch sensor (6) comprise a voltage comparator LM393A-U2, a switch S1, a FUSE FUSE1, a seventh resistor R7, an eighth resistor R8, a potentiometer VR1, a potentiometer VR2, a reed switch G1, a reed switch G2, a second capacitor C2 and a third capacitor C3, one end of the switch S1 is connected with a power supply terminal +5V, the other end of the switch S1 is connected with one end of the FUSE FUSE1, the other end of the FUSE FUSE1 is respectively connected with one end of the seventh resistor R7, one end of the eighth resistor R8, a fixed end of the potentiometer VR1, a fixed end of the potentiometer VR2 and one end of the voltage comparator A-U868, a pin VCC of the first reed switch VR1 is respectively connected with the power supply terminal LM 1 of the power supply terminal 7, and the other end of the first reed switch VR 7, The pin 2 of the voltage comparator LM393A-U2 is connected with one end of a second capacitor C2, the other end of the reed switch G1 is connected with the other end of a second capacitor C2, the other end of the second capacitor C2 is grounded, the other end of the eighth resistor R8 is respectively connected with one end of the reed switch G2, the pin 6 of the voltage comparator LM 37393 84-U2 and one end of a third capacitor C3, the other end of the reed switch G2 is connected with the other end of a third capacitor C3, the other end of the third capacitor C3 is grounded, the adjustable end of the potentiometer VR1 is connected with the pin 3 of the voltage comparator LM393A-U2, the other end of the potentiometer VR1 is grounded, the adjustable end of the potentiometer VR2 is connected with the pin 5 of the voltage comparator LM393A-U2, the other fixed end of the potentiometer VR2 is grounded, and the pin LM 53-U393 864 is grounded.

5. The automatic opening and closing control circuit of the hospital clinical laboratory door according to claim 4, wherein: the indicator lamp circuit (9) comprises a light emitting diode VD1, a light emitting diode VD2, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4, wherein the anode of the light emitting diode VD1 is respectively connected with one fixed end of a potentiometer VR2, one end of the second resistor R2, the anode of a light emitting diode VD2 and one end of the fourth resistor R4, the cathode of the light emitting diode VD1 is connected with one end of the first resistor R1, the other end of the first resistor R1 is respectively connected with the other end of the second resistor R2 and 1 pin of voltage comparators LM393A-U2, the cathode of the light emitting diode 2 is connected with one end of the third resistor R3, and the other end of the third resistor R3 is respectively connected with the other end of the fourth resistor R4 and the other end of the voltage comparators LM 393A-U2.

6. The automatic opening and closing control circuit of the hospital clinical laboratory door according to claim 5, wherein: the AND gate circuit (7), the alarm frequency generating circuit (8), the triode driving circuit (10) and the buzzer (11) comprise a time base integrated circuit NE555-U1, four 2 input NAND gates CD4011-U3, a diode D1, a diode D2, a fifth resistor R5, a sixth resistor R6, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, an electrolytic capacitor EC1, a first capacitor C1, a fourth capacitor C4, an NPN type triode Q1, a PNP type triode Q1 and an alarm BZ1, wherein the anode of the diode D1 is connected with the 1 pin of the voltage comparator LM 1-U1, the cathode of the diode D1 is connected with the pin 367 of the voltage comparator LM 72-U1, the cathode of the diode D1 is respectively connected with the tenth resistor LM393 and the cathode of the ninth resistor R1, the other end of the ninth resistor R9 is grounded, the other end of the tenth resistor R10 is connected to the base of an NPN-type triode Q1, the emitter of the NPN-type triode Q1 is grounded, the collector of the NPN-type triode Q1 is connected to one end of a fifth resistor R5 and the pin 2 of the time-base integrated circuit NE555-U1, the other end of the fifth resistor R5 is connected to one end of a fourth resistor R4, one end of a sixth resistor R6, the pin 4 and the pin 8 of the time-base integrated circuit 555-U1 and the pin 14 of the four 2-input nand gate CD4011-U3, the pin 4 of the time-base integrated circuit 555-U1 is connected to the power source terminal VCC, the other end of the sixth resistor R38 is connected to the anode of the electrolytic capacitor EC1, the pin 6 and the pin 7 of the time-base integrated circuit NE555-U1, the cathode of the electrolytic capacitor EC1 is grounded, the pin 1 of the time-base integrated circuit NE555-U1 is grounded, the 3 feet of the time base integrated circuit NE555-U1 are connected with the 1 foot of a four 2-input NAND gate CD4011-U3, the 5 feet of the time base integrated circuit NE555-U1 are connected with one end of a first capacitor C1, the other end of the first capacitor C1 is grounded, the 2 feet of the four 2-input NAND gate CD4011-U3 are connected with one end of a twelfth resistor R12, the other end of the twelfth resistor R12 is respectively connected with one end of a thirteenth resistor R13 and one end of a fourth capacitor C4, the other end of the thirteenth resistor R13 is respectively connected with the 3 feet, the 5 feet and the 6 feet of a four 2-input NAND gate CD4011-U3, the other end of the fourth capacitor C4 is respectively connected with the 4 feet of a four 2-input NAND gate CD4011-U3 and one end of an eleventh resistor R11, the 7 feet of the four 2-input NAND gate CD4011-U3 are grounded, and the other end of the eleventh resistor R11 is connected with a PNP 2 base of a PNP 36Q, the emitter of the PNP triode Q2 is connected with the 8 pins of the voltage comparator LM393A-U2, the collector of the PNP triode Q2 is connected with one end of a fourteenth resistor R14, the other end of the fourteenth resistor R14 is connected with one end of an alarm BZ1, and the other end of the alarm BZ1 is grounded.