CN114882677A - Intelligent alarm device based on Internet of things - Google Patents

Abstract

The invention provides an intelligent alarm device based on the Internet of things, which comprises an alarm, an exhaust fan, a pressure gauge and a gas sensor, wherein the exhaust fan, the pressure gauge and the gas sensor are connected with the alarm through the Internet of things; the alarm comprises a bottom plate installed on a wall surface, a shell connected with the surface of one side, far away from the wall surface, of the bottom plate, a voltage transformation circuit board and a detection circuit board, wherein the voltage transformation circuit board and the detection circuit board are arranged inside the shell and are sequentially arranged from top to bottom, a first anti-creeping assembly is connected to the outside of the voltage transformation circuit board, a second anti-creeping assembly is connected to the outside of the circuit board, and the first anti-creeping assembly and the second anti-creeping assembly are identical in structure. The invention reduces the current leakage from the connection of the transformer circuit board and the detection circuit board and the wires to the atmosphere environment, thereby preventing the explosion phenomenon caused by the spark generated by the wires on the wires.

Description

An intelligent alarm device based on the Internet of Things

technical field

The invention relates to the technical field of Internet of Things alarm devices, in particular to an intelligent alarm device based on the Internet of Things.

Background technique

The Internet of Things refers to a technology that connects any object with the network through information sensing devices and according to an agreed protocol.

According to a high-safety gas alarm device provided by the patent document with the application number of CN202120361202.4, the alarm device includes a gas alarm body, a first U-shaped frame, a filter screen, a second U-shaped frame and a positioning bolt, The front and rear ends on both sides of the top of the gas alarm body are respectively provided with air inlet holes, the upper and lower ends of the air inlet holes above the front and rear ends of the gas alarm body are respectively provided with positioning holes, the first U-shaped frame and the second U-shaped frame are respectively provided with positioning holes. The opposite side of the frame is fixed with the upper and lower ends of the filter screen respectively, a first U-shaped frame, a filter screen and a second U-shaped frame are grouped together, and two sets of the first U-shaped frame, the filter screen and the second U-shaped frame are formed. The frames are respectively clamped on both sides above the gas alarm body, the through holes opened at the front and rear ends of the first U-shaped frame and the second U-shaped frame correspond to the positioning holes, and the positioning bolts are inserted into the positioning holes through the through holes. The utility model has the advantage that a filter screen is arranged at the air inlet hole to prevent putty from entering the inside of the gas alarm body. The above-mentioned alarm device has the advantage of setting a filter screen at the air inlet to prevent putty from entering the inside of the gas alarm body.

However, the traditional alarm device is often faced with the need to use electrical appliances when the gas is circulated indoors, which causes the gas to easily come into contact with sparks, resulting in a potential safety hazard of explosion.

SUMMARY OF THE INVENTION

Based on this, the purpose of the present invention is to provide an intelligent alarm device based on the Internet of Things to solve the technical problems raised in the above background art.

The present invention provides an intelligent alarm device based on the Internet of Things, including an alarm device, an exhaust fan, a pressure gauge and a gas sensor connected to the alarm device through the Internet of Things. The exhaust fan is installed on the wall, and the pressure gauge is installed on the gas sensor. the outer surface of the pipe, the gas sensor is mounted on the ceiling;

The alarm includes a bottom plate mounted on the wall, a casing connected with the side surface of the bottom plate away from the wall, and a transformer circuit board and a detection circuit board arranged inside the casing and sequentially arranged from top to bottom. a circuit board, a first anti-leakage component is connected to the outside of the transformer circuit board, a second anti-leakage component is connected to the outside of the circuit board, and the first anti-leakage component and the second anti-leakage component have the same structure;

The first anti-leakage component includes guide posts arranged on both sides of the transformer circuit board and mounted on the bottom plate shell, and a sealing cover passing through the two guide posts. The air outlet end of the cover is connected with the air inlet end of the exhaust fan.

Further, the first anti-leakage component also includes a termination piece installed on the outer surface of one end of the guide column, and a spring sleeved on the outer surface of the guide column, the spring is located between the termination piece and the sealing cover. Between one side surface, in the present invention, the end piece is used to provide support for the spring, and the energy storage of the spring is used to push the sealing cover to be pressed against the bottom plate.

Further, the first anti-leakage component further includes a threaded sleeve installed inside the sealing cover and through which the guide column is inserted, and a rubber gasket is installed on one side surface of the threaded sleeve and the sealing cover, In the present invention, the threaded sleeve is driven by the sealing cover to be pressed against the bottom plate, thereby reducing the current in the sealing cover from flowing into the outside along the gap between the guide column and the bottom plate.

Further, a negative pressure component is installed on the side surface of the exhaust fan away from the wall, the exhaust fan is connected with the sealing cover through the negative pressure component, and the negative pressure component includes a block installed on the side surface of the exhaust fan away from the wall. a plate, and a negative pressure suction pipe installed on the baffle shell, the end of the negative pressure suction pipe away from the baffle extends to the interior of the alarm and is connected to the sealing cover. In the present invention, the negative pressure suction pipe is The pressure suction tube generates negative pressure in the inner sealing cover of the alarm, so that the sealing cover is adsorbed on the bottom plate, and the leakage of the current from the connection between the transformer circuit board and the detection circuit board and the electric wire is reduced to dissipate into the atmospheric environment.

Further, a buzzer piece is inserted into the shell of the outer shell, and the buzzer piece is connected with the detection circuit board through a wire. Alarm to remind nearby people to take quick countermeasures.

Further, the inside of the casing is provided with a third anti-leakage component connected to the buzzer, and the third anti-leakage component has the same structure as the first and second anti-leakage components, in this case, In the invention, the current leakage between the buzzer sheet and the electric wire is prevented by the third anti-leakage component.

Further, a first negative pressure pipe is installed on one side surface of the sealing cover in the third leakage prevention component, and a second negative pressure pipe is sleeved outside one end of the first negative pressure pipe. The pressure tube is installed on the outer surface of the sealing cover in the second leakage prevention component.

Further, the first negative pressure tube is tapered, and the first negative pressure tube fits the inner cavity of the second negative pressure tube. In the present invention, the first negative pressure tube is tapered. shape, so that the more the first negative pressure tube is inserted into the inner cavity of the second negative pressure tube, the tighter the connection between the first negative pressure tube and the second negative pressure tube is.

Further, the materials of the first negative pressure pipe and the second negative pressure pipe are rubber. In the present invention, the first negative pressure pipe and the second negative pressure pipe pass through their elasticity, so that the first negative pressure pipe and the The connection between the second negative pressure pipes is tighter.

Further, a warning light, a single-chip microcomputer and a catalytic combustion sensor are installed on one surface of the detection circuit board.

Compared with the prior art, the beneficial effects of the present invention are:

First, the present invention can be combined with the Internet of Things, so as to fully monitor the indoor environment and make timely responses, specifically: the gas sensor or the catalytic combustion sensor inside the alarm monitors that the natural gas content in the environment exceeds a threshold value, and the pressure gauge detects that the gas When the pressure in the pipeline does not meet the set interval, the electrical signal with the information is transmitted to the detection circuit board inside the gas sensor through the Internet of Things, so as to control the exhaust fan in the Internet of Things through the single chip microcomputer on the detection circuit board. Work to discharge the natural gas in the room, and at the same time the buzzer in the alarm starts to alarm.

Second, the present invention generates a negative pressure in the inner sealing cover of the alarm through a negative pressure suction pipe, so that the sealing cover is adsorbed on the bottom plate, and the leakage current from the connection between the transformer circuit board and the detection circuit board and the electric wire is reduced to dissipate to the atmospheric environment. middle.

Additional features and advantages of the present invention will be set forth in the description which follows, or some may be inferred or unambiguously determined from the description, or may be learned by practicing the above-described techniques of the present invention.

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural representation of the alarm device of the present invention;

FIG. 3 is a schematic structural diagram of the first anti-leakage component of the present invention;

Fig. 4 is the structural schematic diagram of the sealing cover of the present invention;

5 is a schematic structural diagram of an exhaust fan of the present invention;

Fig. 6 is the structural representation of the shell of the present invention;

FIG. 7 is a schematic structural diagram of a third anti-leakage component of the present invention;

Figure 8 is a schematic diagram of the present invention.

In the figure: 10, alarm; 11, bottom plate; 12, shell; 13, transformer circuit board; 14, detection circuit board; 141, warning light; 142, single chip; 143, catalytic combustion sensor; 15, first anti-leakage Component; 151, guide post; 152, sealing cover; 153, termination piece; 154, spring; 155, rubber gasket; 156, threaded sleeve; 16, the second anti-leakage component; 17, the third anti-leakage component; 171, 172, second negative pressure pipe; 20, exhaust fan; 21, negative pressure assembly; 211, baffle plate; 212, negative pressure suction pipe; 30, pressure gauge; 40, gas sensor.

Detailed ways

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the related drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to FIGS. 1 to 8 , the present invention provides an intelligent alarm device based on the Internet of Things, including an alarm 10, an exhaust fan 20, a pressure gauge 30 and a gas sensor 40 connected to the alarm 10 through the Internet of Things. The exhaust fan 20 is used to be installed on the wall, the pressure gauge 30 is used to be installed on the outer surface of the gas pipeline, and the gas sensor 40 is used to be installed on the ceiling;

The alarm 10 includes a bottom plate 11 mounted on the wall, a casing 12 connected to the side surface of the bottom plate 11 away from the wall, and a variable frequency device arranged inside the casing 12 and arranged in sequence from top to bottom. pressure circuit board 13 and detection circuit board 14;

The outside of the transformer circuit board 13 is connected with a first anti-leakage component 15 , and the outside of the circuit board 14 is connected with a second anti-leakage component 16 . same structure;

The first anti-leakage component 15 includes guide posts 151 disposed on both sides of the transformer circuit board 13 and mounted on the housing of the bottom plate 11 , and a seal pierced through the two guide posts 151 . Cover 152 , the air outlet end of the sealing cover 152 is connected with the air inlet end of the exhaust fan 20 .

Specifically, please refer to FIG. 3 and FIG. 4 , the first anti-leakage component 15 further includes a termination piece 153 mounted on the outer surface of one end of the guide column 151 , and a spring 154 sleeved on the outer surface of the guide column 151 . , the spring 154 is located between the termination piece 153 and one side surface of the sealing cover 152;

The first anti-leakage component 15 further includes a threaded sleeve 156 installed inside the sealing cover 152 and through which the guide column 151 is inserted. rubber pad 155;

A negative pressure component 21 is installed on the side surface of the exhaust fan 20 away from the wall. The exhaust fan 20 is connected to the sealing cover 152 through the negative pressure component 21. The baffle 211 on the side surface, and the negative pressure suction pipe 212 installed on the casing of the baffle 211, the end of the negative pressure suction pipe 212 away from the baffle 211 extends to the interior of the alarm 10 and the sealing cover 152 are connected;

A buzzer piece 121 is inserted through the shell of the casing 12, and the buzzer piece 121 is connected to the detection circuit board 14 through a wire;

It should be noted that, in this embodiment, the end piece 153 provides support for the spring 154, and the energy storage of the spring 154 pushes the sealing cover 152 to be pressed on the bottom plate 11;

Further, when the sealing cover 152 is pressed against the bottom plate 11 , the threaded sleeve 156 is driven by the sealing cover 152 to be pressed against the bottom plate 11 , thereby reducing the current in the sealing cover 152 along the gap between the guide post 151 and the bottom plate 11 . into the outside world;

Further, a negative pressure is generated in the sealing cover 152 inside the alarm 10 through the negative pressure suction pipe 212, so that the sealing cover 152 is adsorbed on the bottom plate 11, and the leakage of the transformer circuit board 13 and the detection circuit board 14 and the connection between the wires is reduced. The current is dissipated into the atmospheric environment, and the airflow introduced by the exhaust fan 20 from the atmospheric environment is restricted by the baffle 211, thereby improving the ability of the exhaust fan 20 to guide the negative pressure suction pipe 212 to generate negative pressure;

The negative pressure suction pipe 212 is directly connected with the vacuum pump, thereby further improving the stability of the negative pressure generated inside the negative pressure suction pipe 212;

Further, through the buzzer 121 connected to the detection circuit board 14, an alarm is performed to remind nearby personnel to quickly take countermeasures.

Specifically, please refer to FIG. 3 and FIG. 6 , the casing 12 is provided with a third anti-leakage component 17 connected to the buzzer 121 , the third anti-leakage component 17 is connected to the first anti-leakage component 15 and the second anti-leakage component 16 have the same structure;

A first negative pressure pipe 171 is installed on one side surface of the sealing cover 152 in the third leakage prevention component 17, and a second negative pressure pipe 172 is sleeved outside one end of the first negative pressure pipe 171. Two negative pressure pipes 172 are installed on the outer surface of the sealing cover 152 in the second leakage prevention component 16;

The first negative pressure pipe 171 is tapered, the first negative pressure pipe 171 fits with the inner cavity of the second negative pressure pipe 172 , the first negative pressure pipe 171 and the second negative pressure pipe 172 The material is rubber;

A warning light 141 , a microcontroller 142 and a catalytic combustion sensor 143 are installed on one surface of the detection circuit board 14 . It should be noted that, in this embodiment, the current leakage between the buzzer sheet 121 and the wires is prevented by the third anti-leakage component 17;

Further, the first negative pressure pipe 171 is inserted into the second negative pressure pipe 172. Since the first negative pressure pipe 171 is installed on the sealing cover 152 in the third leakage prevention component 17, the second negative pressure pipe 172 is installed in the second negative pressure pipe 172. Two sealing covers 152 in the anti-leakage components 16, so that the two sealing covers 152 are connected, so that after negative pressure is generated inside one of the sealing covers 152, the other sealing cover 152 will also generate negative pressure inside;

Further, through the tapered shape of the first negative pressure tube 171, the more the first negative pressure tube 171 is inserted into the inner cavity of the second negative pressure tube 172, the more the first negative pressure tube 171 and the second negative pressure tube 171 are inserted. The connection between 172 is tighter;

Further, the elasticity of the first negative pressure pipe 171 and the second negative pressure pipe 172 makes the connection between the first negative pressure pipe 171 and the second negative pressure pipe 172 tighter.

The specific operation mode of the present invention is as follows:

When the gas sensor 40 or the catalytic combustion sensor 143 inside the alarm 10 detects that the natural gas content in the environment exceeds the threshold, and the pressure gauge 30 detects that the pressure in the gas pipeline does not meet the set interval, the electricity with the information will be sent to the electricity through the Internet of Things. The signal is transmitted to the detection circuit board 14 inside the gas sensor 40 to control the exhaust fan 20 in the Internet of Things through the single chip 142 on the detection circuit board 14 to work to discharge the natural gas in the room, and at the same time the alarm 10 buzzes Piece 121 starts to alarm;

When the exhaust fan 20 discharges the indoor natural gas, a negative pressure is generated in the inner sealing cover 152 of the alarm 10 through the negative pressure suction pipe 212, so that the sealing cover 152 is adsorbed on the bottom plate 11, and the transformer circuit board 13 and the detection circuit board 14 and wires are reduced. The leakage current at the connection is dissipated to the atmosphere.

Finally, it should be noted that the above-mentioned embodiments are only specific implementations of the present invention, and are used to illustrate the technical solutions of the present invention, but not to limit them. The protection scope of the present invention is not limited thereto, although referring to the foregoing The embodiment has been described in detail the present invention, those of ordinary skill in the art should understand: any person skilled in the art who is familiar with the technical field within the technical scope disclosed by the present invention can still modify the technical solutions described in the foregoing embodiments. Or can easily think of changes, or equivalently replace some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be covered in the present invention. within the scope of protection. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. An intelligent alarm device based on the Internet of Things, characterized in that it comprises an alarm device (10), an exhaust fan (20), a pressure gauge (30) and a gas sensor ( 40), the exhaust fan (20) is used to be installed on the wall, the pressure gauge (30) is used to be installed on the outer surface of the gas pipeline, and the gas sensor (40) is used to be installed on the ceiling; The alarm device (10) comprises a bottom plate (11) mounted on a wall, a casing (12) connected to a side surface of the bottom plate (11) away from the wall, and a casing (12) disposed inside the casing (12) , and a transformer circuit board (13) and a detection circuit board (14) arranged in sequence from top to bottom, the transformer circuit board (13) is externally connected with a first anti-leakage component (15), the circuit board The outside of (14) is connected with a second anti-leakage component (16), and the first anti-leakage component (15) and the second anti-leakage component (16) have the same structure; The first anti-leakage component (15) includes guide posts (151) disposed on both sides of the transformer circuit board (13) and mounted on the housing of the bottom plate (11), and guide posts (151) passing through the two A sealing cover (152) on the guide column (151), the air outlet end of the sealing cover (152) is connected with the air inlet end of the exhaust fan (20). 2 . The smart alarm device based on the Internet of Things according to claim 1 , wherein the first anti-leakage component ( 15 ) further comprises a termination piece installed on the outer surface of one end of the guide post ( 151 ). 3 . (153), and a spring (154) sleeved on the outer surface of the guide post (151), the spring (154) is located between the termination piece (153) and one side surface of the sealing cover (152). 3. The smart alarm device based on the Internet of Things according to claim 1, wherein the first anti-leakage component (15) further comprises a device installed inside the sealing cover (152) and provided for the A threaded sleeve (156) through which the guide post (151) is inserted, a rubber gasket (155) is installed on one side surface of the threaded sleeve (156) and the sealing cover (152). The smart alarm device based on the Internet of Things according to claim 1, characterized in that, a negative pressure component (21) is installed on the side surface of the exhaust fan (20) away from the wall, and the exhaust fan (20) The negative pressure component (21) is connected with the sealing cover (152), and the negative pressure component (21) includes a baffle plate (211) installed on the surface of the exhaust fan (20) away from the wall, and a baffle plate (211) installed on the side surface of the exhaust fan (20) away from the wall. The negative pressure suction pipe (212) on the casing of the baffle (211), the end of the negative pressure suction pipe (212) away from the baffle (211) extends to the inside of the alarm (10) and is connected with the sealing cover (152) are connected. The intelligent alarm device based on the Internet of Things according to claim 1, characterized in that, a buzzer piece (121) is interspersed on the shell of the casing (12), and the buzzer piece (121) It is connected with the detection circuit board (14) through wires. 6. The smart alarm device based on the Internet of Things according to claim 5, characterized in that a third anti-leakage component connected to the buzzer (121) is provided inside the casing (12). (17), the third anti-leakage component (17) has the same structure as the first anti-leakage component (15) and the second anti-leakage component (16). 7 . The smart alarm device based on the Internet of Things according to claim 6 , wherein the first negative pressure is installed on one side surface of the sealing cover ( 152 ) in the third leakage prevention component ( 17 ). 8 . A pipe (171), one end of the first negative pressure pipe (171) is sleeved with a second negative pressure pipe (172), and the second negative pressure pipe (172) is installed on the second leakage prevention component ( 16) on the outer surface of the sealing cover (152). The intelligent alarm device based on the Internet of Things according to claim 7, wherein the first negative pressure pipe (171) is tapered, and the first negative pressure pipe (171) is connected to the The inner cavity of the second negative pressure pipe (172) is matched. 9 . The intelligent alarm device based on the Internet of Things according to claim 8 , wherein the first negative pressure pipe ( 171 ) and the second negative pressure pipe ( 172 ) are made of rubber. 10 . 10. The intelligent alarm device based on the Internet of Things according to claim 1, characterized in that, a warning light (141), a single-chip microcomputer (142) and a catalytic combustion are installed on one side surface of the detection circuit board (14). sensor (143).

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