CN211158307U

CN211158307U - Wisdom classroom based on internet of things

Info

Publication number: CN211158307U
Application number: CN201921599337.3U
Authority: CN
Inventors: 马金海
Original assignee: Nanjing Hexian Electronic Technology Co ltd
Current assignee: Nanjing Hexian Electronic Technology Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-08-04
Anticipated expiration: 2029-09-24

Abstract

The utility model relates to a wisdom classroom based on internet of things, it includes the base member, be provided with outlet pipe and ventilation fan in the base member, the intercommunication has a plurality of shower nozzles on the outlet pipe, outlet pipe one end is connected with the delivery pipe, the outlet pipe is provided with first solenoid valve with delivery pipe intercommunication department, still be provided with temperature-sensing ware, smoke sensor and warning circuit in the base member, warning circuit includes first control circuit, is coupled in the temperature-sensing ware in order to rise in the short time according to the temperature in the base member and control the shower nozzle whether to spray water, and second control circuit is coupled in the smoke sensor in order to rise according to the interior smoke concentration of base member and control the ventilation fan whether to start, the utility model discloses have and can respond the effect that the water spray was put out a fire when the conflagration.

Description

Wisdom classroom based on internet of things

Technical Field

The utility model belongs to the technical field of the internet of things control technique and specifically relates to a wisdom classroom based on internet of things is related to.

Background

The Internet of things is an important component of a new generation of information technology and is also an important development stage of an 'informatization' era; as the name implies, the Internet of things is the Internet with connected objects. The two layers mean that the core and the foundation of the Internet of things are still the Internet which is an extended and expanded network on the basis of the Internet, and the user side of the Internet of things is extended and expanded to any article to perform information exchange and communication, namely the article information. The internet of things is widely applied to network fusion through communication perception technologies such as intelligent perception, identification technology and pervasive computing, and is also called as the third wave of development of the world information industry after computers and the internet. The internet of things is an application expansion of the internet, and is not a network, but a business and an application.

The thing networking can also be used in the condition of monitoring and responding to the conflagration condition in the middle of practical application, can adopt the thing networking to monitor the condition of the inside conflagration of classroom in a lot of school classrooms now.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a wisdom classroom based on internet of things, it has the effect that can respond the water spray and put out a fire when the conflagration appears.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a smart classroom based on the Internet of things technology comprises a base body, wherein a water outlet pipe is arranged in the base body, a plurality of spray heads are communicated with the water outlet pipe, one end of the water outlet pipe is connected with a water supply pipe, a first electromagnetic valve is arranged at the communication position of the water outlet pipe and the water supply pipe, a temperature sensor, a smoke sensor and an alarm circuit are further arranged in the base body, the alarm circuit comprises a first control circuit, and the first control circuit is coupled with the temperature sensor to control whether the spray heads spray water or not according to whether the temperature in the base body rises within a short time;

and the second control circuit is coupled with the smoke sensor to control whether the ventilation fan is started or not according to whether the smoke concentration in the substrate is increased or not.

Through adopting above-mentioned technical scheme, can make the temperature rise in the classroom when producing the conflagration in the classroom to can accompany production smog when the conflagration produces, make rise that temperature-sensing ware can sense the temperature, smog is sensed to the smog inductor, make the shower nozzle spray the conflagration through first control circuit control solenoid valve, and second control circuit control ventilating fan is with smog suction, make the smog after the burning be difficult for sheltering from smog inductor and temperature-sensing ware and lead to detecting the precision to reduce.

The utility model discloses further set up to: the first control circuit comprises a first comparison part and a first control part, the first comparison part is coupled with the temperature sensor, the first control part is coupled with the first comparison part, and the first control part is electrically connected with the first electromagnetic valve.

Through adopting above-mentioned technical scheme, first comparison portion is coupled with temperature-sensing ware, and the temperature in the base can rise sharply when the conflagration breaing out, and first comparison portion can be compared the temperature that temperature-sensing ware sensed with normal room temperature, when comparing the temperature and being higher than normal temperature, gets electricity through first control portion control first solenoid valve, makes the shower nozzle spray water to reach the effect of putting out a fire.

The utility model discloses further set up to: and a prompt circuit for giving an alarm according to whether water exists in the water outlet pipe is connected in series to the first electromagnetic valve.

Through adopting above-mentioned technical scheme, among the in-service use, the tap of delivery pipe may produce the problem, leads to the shower nozzle not to go out water, sends the suggestion through the suggestion circuit to in time send the warning, suggestion operating personnel puts out a fire, reduces the probability that the conflagration stretchs.

The utility model discloses further set up to: one end of the water outlet pipe, which is connected with the water supply pipe, is also connected with a standby water pipe, and a second electromagnetic valve which is electrically connected with the prompt circuit is arranged on the standby water pipe.

Through adopting above-mentioned technical scheme, on delivery pipe and the different water sources of standby union coupling, when the water supply of delivery pipe is unusual, suggestion portion sends the suggestion of reporting to the police, and suggestion circuit control second solenoid valve opens this moment, uses the interior extinguishing fire that comes of standby pipe.

The utility model discloses further set up to: the prompting circuit comprises a water flow sensor arranged in the water outlet pipe, a judging part coupled to the water flow sensor, a third control part coupled to the judging part and an alarm unit connected with the judging part, and the third control part is electrically connected with the second electromagnetic valve.

By adopting the technical scheme, whether rivers exist in the water outlet pipe is sensed by the water flow sensor, whether rivers exist in the water outlet pipe is determined by the determination part, when no water flow passes through the determination part, a signal is transmitted to the third control part to control the second electromagnetic valve to be opened, and an alarm unit sends an alarm through the Internet of things to prompt that a standby pipeline water source is used at the moment.

The utility model discloses further set up to: a timing part is arranged between the water flow sensor and the judging part.

By adopting the technical scheme, when the first electromagnetic valve is just opened, water in the water outlet pipe may not flow to the water flow sensor, the timer can be timed, and the third control part can obtain a signal to control the second electromagnetic valve to be opened when no water flows through the timer within a certain time; water flows through the water supply device within a certain time, which indicates that the water supply is normal; the probability of false presentation is reduced by the timing section.

The utility model discloses further set up to: the second control circuit comprises a second comparison part and a second control part, the second comparison part is coupled with the smoke sensor, and the second control part is electrically connected with the ventilation fan.

Through adopting above-mentioned technical scheme, second comparison portion is coupled with the smoke sensor, senses smog concentration rising signal at the smoke sensor, gives second comparison portion with signal transmission, and second comparison portion compares smog concentration and smog concentration default, and when surpassing the default, the signal of second comparison portion transmits to second control portion through communication portion, and second control portion control ventilating fan induced drafts, with indoor smog suction.

The utility model discloses further set up to: offer the slide of establishing in the ventilating fan both sides separately on the base member, the slide sets up along the ventilating fan direction of height, it is connected with the shrouding to slide in the slide, be provided with the stopper on the base member, the stopper include with the fixed shell of base member, be located the electro-magnet of shell and with the buckle of electro-magnet actuation, the jack has been seted up to shrouding diagonal angle department, the buckle is inserted with the jack and is closed, the electro-magnet is connected with the second control part electricity.

By adopting the technical scheme, when a fire disaster does not occur, the sealing plate blocks the ventilation fan, so that dust accumulation is not easy to occur in the ventilation fan, and the ventilation fan keeps good use performance; when responding to the conflagration, because stopper and ventilating fan all are connected with smoke sensor electricity, sense conflagration smog at smoke sensor after, electro-magnet in the stopper has got electric actuation buckle for the buckle is relieved and is closed with inserting of jack, and the shrouding is not spacing by the buckle, receives self action of gravity to slide along the slide and opens the ventilating fan, makes the ventilating fan can be with indoor smog suction.

To sum up, the utility model discloses a beneficial technological effect does:

1. when a fire disaster occurs in a classroom, the temperature sensor senses the indoor temperature rise, the electromagnetic valve is controlled to be opened through the first control circuit, the spray head can spray water to extinguish a fire, the smoke sensor can sense the indoor smoke concentration, and when the smoke concentration rises, the ventilation fan is controlled to be started through the second control part to blow out indoor smoke, so that smoke is not easy to shield the temperature sensor and the smoke sensor;

2. after the first electromagnetic valve is powered on and when no water exists in the water outlet pipe, the second electromagnetic valve is controlled to be opened by a third control part in the prompt circuit, water for fire extinguishing is provided for the water outlet pipe through a standby water pipe, an alarm is given through an alarm unit, and a worker is reminded of using a standby water source at the moment, so that fire extinguishing is realized;

3. the probability of false prompts is reduced by the timing part.

Drawings

Fig. 1 is a schematic sectional view of the entire structure of the present embodiment.

Fig. 2 is a circuit diagram of an alarm circuit.

Fig. 3 is a partial schematic view showing the sealing plate sealing the ventilation fan.

Figure 4 is a partial schematic view of a ventilation fan embodying the opening of the closure plate.

Fig. 5 is a partially enlarged schematic view of a portion a in fig. 4.

In the figure, 1, a substrate; 11. a temperature sensor; 12. a smoke sensor; 13. a slideway; 2. a water outlet pipe; 21. a spray head; 3. a ventilating fan; 31. closing the plate; 32. a stopper; 33. a housing; 34. an electromagnet; 35. buckling the plate; 36. a torsion spring; 37. a jack; 38. connecting columns; 39. buckling; 4. a water supply pipe; 5. a first solenoid valve; 6. an alarm circuit; 61. a first control circuit; 62. a second control circuit; 63. a first comparing section; 64. a first control unit; 65. a second comparing section; 66. a second control unit; 7. a cue circuit; 71. a water flow sensor; 72. a judgment section; 73. a third control section; 74. an alarm unit; 75. a timing section; 8. a spare water pipe; 81. a second solenoid valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a smart classroom based on internet of things, which comprises a base body 1, a water outlet pipe 2 is arranged at the top of the base body 1, a plurality of nozzles 21 for spraying water and extinguishing fire are communicated on the water outlet pipe 2, one end of the water outlet pipe 2 is connected with a water supply pipe 4, a first electromagnetic valve 5 is arranged at the position where the water outlet pipe 2 is communicated with the water supply pipe 4, a temperature sensor 11 is arranged in the base body 1, an alarm circuit 6 is also arranged in the base body 1, the alarm circuit 6 comprises a first control circuit 61, the first control circuit 61 comprises a first comparison part 63 and a first control part 64, the temperature sensor 11 is coupled with the first comparison part 63, a temperature preset value is set in the first comparison part 63, the first control part 64 is coupled with the first electromagnetic valve 5, when a fire occurs, the temperature in the base body 1 can rise sharply, the temperature sensor 11 can, and sends the signal to the first comparing part 63, the first comparing part 63 compares that the temperature exceeds the preset temperature value, and sends the signal to the first control part 64, and the first control part 64 controls the first electromagnetic valve 5 to open, so that the fire is extinguished by spraying water from the spray head 21.

Referring to fig. 1 and 2, the first solenoid valve 5 is connected in series with a prompt circuit 7 according to whether water flows through or not, the prompt circuit 7 includes a water flow sensor 71 disposed in the water supply pipe 4, a determination part 72 coupled to the water flow sensor 71, a third control part 73 and an alarm unit 74 coupled to the determination part 72, and a timing part 75 disposed between the water flow sensor 71 and the determination part 72, a reserve pipe is connected to the water outlet pipe 2, the reserve pipe is different from the water supply of the water supply pipe 4, a second solenoid valve 81 is disposed on the reserve pipe, the second solenoid valve 81 is coupled to the third control part 73, a time parameter is set in the timing part 75, the first solenoid valve 5 is turned on when a fire occurs, the water flow sensor senses water flow, if water flow through the water supply pipe is not detected within a time set in the timing part 75, it is determined that water flows through the water supply pipe 4 abnormally by the determination part 72, the determination part 72 transmits a signal to the third control part, the third control part 73 controls the second solenoid valve 81 to open, supplies water through the standby pipe, thus spraying water from the spray head 21 to extinguish a fire, and reminds the standby water source used at this time through the alarm unit 74.

Referring to fig. 1 and 2, the alarm circuit 6 is further connected to a second control circuit 62, the second control circuit 62 includes a second comparison portion 65 and a second control portion 66, the base 1 is further provided with a smoke sensor 12, the smoke sensor 12 is coupled to the second comparison portion 65, a ventilation fan 3 (see fig. 4) is further provided in the base body 1, the ventilation fan 3 is electrically connected to the second control portion 66, when a fire breaks out indoors, smoke is formed, a preset smoke value is set in the second comparison part 65, the smoke sensor 12 detects the smoke concentration, transmits a signal to the second comparison part 65, when the smoke concentration exceeds the preset smoke value, a signal is transmitted to the second control part 66, the second control part 66 controls the ventilation fan 3 to rotate, indoor smoke is sucked out through the ventilating fan 3, so that the smoke inductor 12 and the temperature inductor 11 are not easily shielded by the smoke, and the detection accuracy of the smoke inductor 12 and the temperature inductor 11 is not easily obstructed.

Referring to fig. 3 and 4, a slide rail 13 is provided on the base 1, the slide rails 13 are respectively provided on two sides of the ventilating fan 3, the slide rails 13 are provided along the height direction, a sealing plate 31 is connected to the slide rails 13 in a sliding manner, a stopper 32 is provided on the base 1, the stopper 32 includes a housing 33 fixed to the base 1, an electromagnet 34 located in the housing 33, and a buckle plate 35 attracted to the electromagnet 34, the number of the stoppers 32 is four, the four stoppers 32 are respectively located at four corners of the sealing plate 31, a buckle 39 is provided on one side of the buckle plate 35 facing the sealing plate 31, and a jack 37 is provided at a position of the sealing plate 31 corresponding to the buckle 39.

Referring to fig. 4 and 5, a connection column 38 is arranged in the housing 33, the buckle plate 35 is rotatably connected with the connection column 38, a torsion spring 36 is arranged at the connection position of the buckle plate 35 and the connection column 38, so that after the electromagnet 34 loses power and the attraction on the buckle plate 35 is removed, the buckle plate 35 enables the buckle 39 to be kept buckled with the jack 37 under the elastic force action of the torsion spring 36, the electromagnet 34 is electrically connected with the second control part 66, the second control part 66 controls the ventilation fan 3 to suck air, and controls the electromagnet 34 to be powered, when the electromagnet 34 is powered, the buckle plate 35 rotates around the connection column 38, at the moment, the buckle 39 is separated from the jack 37, the closing plate 31 slides downwards along the slide way 13 under the action of gravity to open the ventilation fan 3, and the indoor smoke is sucked out through.

The implementation principle of the embodiment is as follows: when a fire breaks out in the substrate 1, the indoor temperature rises rapidly, and along with the formation of dense smoke, the temperature sensor 11 detects the temperature value and the smoke sensor 12 detects the smoke concentration, and under the control of the first control circuit 61 and the second control circuit 62, the purposes of spraying water to extinguish the fire and starting the ventilating fan 3 to suck out the smoke in the room are achieved, so that the fire is extinguished; when the water supply from the water supply pipe 4 is abnormal, the presentation circuit 7 controls the water flow to supply water from the backup pipe, thereby extinguishing fire.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a wisdom classroom based on internet of things, its characterized in that: the water spraying device comprises a base body (1), wherein a water outlet pipe (2) and a ventilation fan (3) are arranged in the base body (1), a plurality of spray heads (21) are communicated with the water outlet pipe (2), one end of the water outlet pipe (2) is connected with a water supply pipe (4), a first electromagnetic valve (5) is arranged at the communication position of the water outlet pipe (2) and the water supply pipe (4), a temperature sensor (11), a smoke sensor (12) and an alarm circuit (6) are further arranged in the base body (1), and the alarm circuit (6) comprises a first control circuit (61) which is coupled with the temperature sensor (11) to control whether the spray heads (21) spray water or not according to the fact that whether the temperature in the base body (1) rises;

and a second control circuit (62) coupled to the smoke sensor (12) for controlling whether the ventilation fan (3) is activated or not according to whether the smoke concentration in the substrate (1) is increased or not.

2. The intelligent classroom based on internet of things technology as claimed in claim 1, wherein: the first control circuit (61) comprises a first comparison part (63) and a first control part (64), the first comparison part (63) is coupled with the temperature sensor (11), the first control part (64) is coupled with the first comparison part (63), and the first control part (64) is electrically connected with the first electromagnetic valve (5).

3. The intelligent classroom based on internet of things technology as claimed in claim 2, wherein: and a prompt circuit (7) for giving an alarm according to whether water exists in the water outlet pipe (2) is connected in series to the first electromagnetic valve (5).

4. The intelligent classroom based on internet of things technology as claimed in claim 3, wherein: one end of the water outlet pipe (2) connected with the water supply pipe (4) is also connected with a standby water pipe (8), and a second electromagnetic valve (81) electrically connected with the prompt circuit (7) is arranged on the standby water pipe (8).

5. The intelligent classroom based on internet of things technology as claimed in claim 4, wherein: the prompting circuit (7) comprises a water flow sensor (71) arranged in the water outlet pipe (2), a judging part (72) coupled to the water flow sensor (71), a third control part (73) coupled to the judging part (72) and an alarm unit (74) coupled to the judging part (72), wherein the third control part (73) is electrically connected with the second electromagnetic valve (81).

6. The intelligent classroom based on internet of things technology as claimed in claim 5, wherein: a timing part (75) is arranged between the water flow sensor (71) and the judging part (72).

7. An internet of things technology based smart classroom according to any one of claims 1-6 wherein: the second control circuit (62) comprises a second comparison portion (65) and a second control portion (66), the second comparison portion (65) is coupled with the smoke sensor (12), and the second control portion (66) is electrically connected with the ventilation fan (3).

8. The intelligent classroom based on internet of things technology as claimed in claim 7, wherein: offer slide (13) of branch establishing in ventilating fan (3) both sides on base member (1), slide (13) are along ventilating fan (3) direction of height setting, slide (13) internal slipping is connected with shrouding (31), be provided with stopper (32) on base member (1), stopper (32) include with base member (1) fixed shell (33), be located electro-magnet (34) in shell (33) and with buckle (35) of electro-magnet (34) actuation, jack (37) have been seted up in shrouding (31) diagonal department, buckle (35) and jack (37) are inserted and shut, electro-magnet (34) are connected with second control portion (66) electricity.