A multifunctional gas alarm and automatic shutoff device

Abstract

This invention proposes a multifunctional gas alarm and automatic shut-off device. The gas alarm device is installed on the upper part of the gas platform, the smoke (temperature) alarm device is installed on the upper part of the gas pipeline, and the gas automatic shut-off device is connected to the gas pipeline. Under normal circumstances, the rubber rod inside the automatic shut-off device is kept in an upward state by spring tension, keeping the valve in the open state. In the event of a fire, gas leak, or other dangerous situation, the gas alarm device detects changes in ambient gas conditions, or the smoke (temperature) alarm device detects changes in ambient smoke (temperature) conditions and issues an alarm signal through an alarm light and a buzzer. At the same time, it provides a danger signal and current to the gas automatic shut-off device. The electromagnet of the gas automatic shut-off device generates magnetism to attract a specially made iron plate set on the top of the rubber rod, overcoming the spring resistance and causing the sealing rubber ball connected to the lower part of the rubber rod to move down quickly and close the valve. This realizes the functions of detecting abnormal gas, smoke, and temperature and cutting off the gas supply, making people's living environment safer.

Description

Technical Field

[0001] The invention relates to the field of gas alarm, in particular to a multifunctional gas alarm and automatic cut-off device. Background Art

[0002] With the improvement of people's living standards, the penetration rate of flammable gases such as natural gas is getting higher and higher. At the same time, there are more and more safety accidents caused by gas. In order to deal with explosion accidents caused by flammable gas leakage, people install flammable gas alarms in places where flammable gases are used. However, the existing gas alarm devices have a single function and only have detection and alarm functions. They are unable to detect different hazardous sources at the same time. If the gas problem is not solved for a long time, accidents such as fire and explosion are very likely to occur, and the problem cannot be solved from the root. The automatic cut-off device installed separately still needs manual operation, and cannot automatically cut off the gas transmission. In addition, the original parts are relatively complicated. When a part fails, the root cause of the problem cannot be found in time, and it is not easy to repair and clean. When individual parts are aging and other problems occur, they cannot be replaced in time. Summary of the invention

[0003] The present invention solves the problems existing in the prior art and provides a multifunctional gas alarm and automatic cut-off device.

[0004] The technical solution of the present invention is achieved in this way:

[0005] A multifunctional gas alarm and automatic shutoff device, comprising a gas alarm device, a smoke (temperature) alarm device, and a gas automatic shutoff device; wherein the gas alarm device is installed on the upper side of a gas table; the smoke (temperature) alarm device is installed on the upper part of a gas pipeline; the gas automatic shutoff device is connected to the gas pipeline; the gas alarm device and the smoke (temperature) alarm device are both electrically connected to the gas automatic shutoff device, the gas alarm device detects changes in ambient gas and provides a danger signal and current to the gas automatic shutoff device; the smoke (temperature) alarm device detects changes in ambient smoke (temperature) and provides a danger signal and current to the gas automatic shutoff device;

[0006] The gas automatic shut-off device comprises a valve body, a sealing interlayer, a transparent cavity, a valve body cover, a rubber straight rod, a reset spring, a spring inner rod, a spring sleeve, and an electromagnet. The valve body cover is located at the upper end of the valve body, and the spring sleeve and the reset spring are arranged below the valve body cover, and the valve body cover is connected to the upper part of the reset spring; the reset spring is sleeved on the spring sleeve; the spring inner rod is arranged in the spring sleeve; the lower ends of the spring sleeve and the spring inner rod are provided with a special iron sheet, and the upper end of the rubber straight rod is connected to the special iron sheet; the electromagnet accommodating chamber is arranged directly below the special iron sheet 25, and the electromagnet is located in the electromagnet accommodating chamber; the sealing interlayer, the transparent cavity are arranged in sequence from top to bottom below the electromagnet , the sealing interlayer, the sealing rubber ball, the up and down moving channel, the air outlet, the buffer slope, the air inlet, and a sealing gasket is also provided between the sealing interlayer and the transparent cavity; the electromagnet accommodating chamber is arranged at the upper end of the sealing interlayer; the rubber straight rod passes through the sealing interlayer, the transparent cavity, the sealing interlayer and is connected to the sealing rubber ball, and the sealing rubber ball is located in the up and down moving channel; at the lower part of the valve body, the air outlet is located on one side of the up and down moving channel and is connected to the up and down moving channel, the air inlet is located below the up and down moving channel, and an S-shaped gas channel is formed between the air inlet and the air outlet by providing a buffer slope; the electromagnet is connected to the gas alarm device and the smoke (temperature) alarm device via a wire.

[0007] Furthermore, the gas alarm device includes a gas front shell, a gas rear shell, an alarm light, a power indicator light, a buzzer, and a combustible gas sensor, the alarm light and the power indicator light are installed on the upper part of the gas front shell; the buzzer is installed inside the gas alarm device; the combustible gas sensor is installed inside the gas alarm device and connected to the alarm light and the buzzer through wires, and the combustible gas sensor detects combustible gas in the environment.

[0008] Furthermore, the smoke (temperature) alarm device includes a smoke front shell, a smoke rear shell, the alarm light, the power indicator light, the buzzer, a smoke (temperature) sensor, and a circuit board. The alarm light and the power indicator light are installed on the upper part of the smoke front shell; the buzzer is installed inside the smoke (temperature) alarm device; the smoke (temperature) sensor is installed inside the smoke (temperature) alarm device and is connected to the alarm light and the buzzer through wires. The smoke (temperature) sensor detects changes in environmental smoke (temperature).

[0009] The beneficial effects of the present invention are as follows: the present invention has a simple structure, diverse functions and is safer and more reliable. It can detect multiple dangerous sources such as gas, smoke, temperature, etc. at the same time. It is safe and reliable and can detect whether there is any abnormality in the surrounding environment in real time. Under non-dangerous conditions, the rubber straight rod in the self-breaking device is kept in an upward state by the spring tension, so that the valve is in an open state. When one or more dangerous sources such as gas, smoke, temperature, etc. are detected to be abnormal, an alarm signal is issued and the gas pipeline is cut off at the same time, making people's living environment safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a structural schematic diagram of a gas alarm device;

[0012] Figure 2 It is a structural schematic diagram of the gas automatic shut-off device;

[0013] Figure 3 This is a schematic diagram of the structure of a smoke (temperature) alarm device;

[0014] Figure 4 This is the explosion diagram of the gas alarm device;

[0015] Figure 5 This is an exploded view of the smoke (temperature) alarm device;

[0016] Figure 6 This is a cross-sectional view of the gas shut-off device. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figure 1 to Figure 6A multifunctional gas alarm and automatic shutoff device is shown, comprising a gas alarm device 1, a smoke (temperature) alarm device 3, and a gas automatic shutoff device 2; wherein the gas alarm device 1 is installed on the upper side of the gas table; the smoke (temperature) alarm device 3 is installed on the upper part of the gas pipeline; the gas automatic shutoff device 2 is connected to the gas pipeline; the gas alarm device 1 and the smoke (temperature) alarm device 3 are both electrically connected to the gas automatic shutoff device 2, the gas alarm device 1 detects changes in ambient gas and provides a danger signal and current to the gas automatic shutoff device 2; the smoke (temperature) alarm device 3 detects changes in ambient smoke (temperature) and provides a danger signal and current to the gas automatic shutoff device 2;

[0019] The gas shut-off device 2 comprises a valve body 220, a sealing barrier 29, a transparent cavity 211, a valve body cover 21, a rubber straight rod 26, a return spring 22, a spring inner rod 24, a spring sleeve 23, and an electromagnet 27. The valve body cover 21 is located at the upper end of the valve body 220. A spring sleeve 23 and a return spring 22 are arranged below the valve body cover 21. The valve body cover 21 is connected to the upper part of the return spring 22. The return spring 22 is sleeved on the spring sleeve 23. The spring inner rod 24 is provided inside the spring sleeve 23. The spring sleeve 23 and the spring inner rod 24 are provided with a special iron sheet 25 at the lower end, and the upper end of the rubber straight rod 26 is connected to the special iron sheet 25; the electromagnet accommodating chamber 28 is provided directly below the special iron sheet 25, and the electromagnet 27 is located in the electromagnet accommodating chamber 28; the sealing interlayer 29, the transparent cavity 211, the sealing interlayer 29, the sealing rubber ball 212, the up and down moving channel 214, the air outlet are provided in sequence below the electromagnet 27 from top to bottom. 215, buffer slope 216, air inlet 217, a sealing gasket 210 is also provided between the sealing interlayer 29 and the transparent cavity 211; the electromagnet accommodating chamber 28 is provided at the upper end of the sealing interlayer 29; the rubber straight rod 26 passes through the sealing interlayer 29, the transparent cavity 211, the sealing interlayer 29 and is connected to the sealing rubber ball 212, and the sealing rubber ball 212 is located in the up and down moving channel 214; at the lower part of the valve body 220, the air outlet 215 is located on one side of the up and down moving channel 214 and is connected to the up and down moving channel 214, the air inlet 217 is located below the up and down moving channel 214, an S-shaped gas channel is formed between the air inlet 217 and the air outlet 215 by providing a buffer slope 216, a valve 219 is provided at the connection between the air inlet 217 and the air outlet 215, and the valve 219 is located directly below the sealing rubber ball 212; the electromagnet 27 is connected to the gas alarm device 1 and the smoke (temperature) alarm device 3 via a wire.

[0020] The gas alarm device 1 includes a gas front shell 11, a gas rear shell 12, an alarm light 13, a power indicator light 14, a buzzer 16, and a combustible gas sensor 15. The alarm light 13 and the power indicator light 14 are installed on the upper part of the gas front shell 11; the buzzer 16 is installed inside the gas alarm device 1; the combustible gas sensor 15 is installed inside the gas alarm device 1 and is connected to the alarm light 13 and the buzzer 16 through wires. The combustible gas sensor 15 detects environmental combustible gas.

[0021] The smoke (temperature) alarm device 3 comprises a smoke front shell 31, a smoke rear shell 33, an alarm light 13, a power indicator light 14, a buzzer 16, a smoke sensor 32, and a temperature sensor 34. The alarm light 13 and the power indicator light 14 are mounted on the upper part of the smoke front shell 31; the buzzer 16 is mounted inside the smoke (temperature) alarm device 3; the smoke sensor and the temperature sensor are mounted inside the smoke (temperature) alarm device 3 and connected to the alarm light 13 and the buzzer 14 through wires. The smoke sensor and the temperature sensor detect environmental smoke and temperature changes.

[0022] In a non-dangerous situation, the rubber rod 26 in the gas cut-off device 2 is kept in an upward state by the pulling force of the reset spring 22, that is, the valve 219 is in an open state. When a dangerous situation such as fire or gas leakage occurs, the gas alarm device 1 detects changes in the ambient gas or the smoke (temperature) alarm device 3 detects changes in the ambient smoke (temperature) and sends out an alarm signal through an alarm light and a buzzer, and at the same time provides a danger signal and current to the gas cut-off device 2. The electromagnet 27 in the gas cut-off device 2 generates a magnetic attraction to the special iron sheet 25 set on the top of the rubber rod 26, overcomes the resistance of the reset spring 22, and causes the sealing rubber ball 212 connected to the lower part of the rubber rod 26 to move downward quickly and close the valve 219 between the air inlet 217 and the air outlet 215, thereby realizing the functions of detecting gas, smoke, temperature abnormalities and cutting off gas, making people's living environment safer.

[0023] In a non-dangerous situation, when the gas alarm device 1 and the smoke (temperature) alarm device 3 are connected to the power supply, only the power indicator light is displayed. The rubber straight rod 26 in the gas cut-off device 2 is connected to the sealing rubber ball 212 and is kept in an upward state by the pulling force of the return spring 22, so that the valve 219 is in an open state. At this time, the gas enters the pipeline from the air inlet 217 and flows steadily upward through the air outlet 215 through the buffer slope 216, ensuring the normal use of the gas.

[0024] When the combustible gas sensor detects an abnormal change in the ambient gas or the smoke sensor 32 or the temperature sensor 34 detects an abnormal change in the ambient smoke or temperature, the alarm light flashes and the buzzer sends an alarm signal, and at the same time provides current to the gas self-cutting device 2. The electromagnet 27 in the gas self-cutting device 2 generates magnetism through the action of the current, adsorbs the special iron sheet 25 set on the top of the rubber straight rod 26, overcomes the resistance of the reset spring 22, and causes the sealing rubber ball 212 connected to the lower part of the rubber straight rod 26 to quickly move down and close the valve 219, so that the gas cannot flow upward through the buffer slope 216, thereby achieving the purpose of gas alarm and self-cutting. During the daily device inspection process, the transparent cavity 211 can be used to observe whether the rubber straight rod 26 is working properly.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional gas alarm and automatic shutoff device, characterized in that: It comprises a gas alarm device, a smoke (temperature) alarm device and a gas automatic shut-off device; wherein the gas alarm device is installed on the upper side of the gas table; the smoke (temperature) alarm device is installed on the upper part of the gas pipeline; the gas automatic shut-off device is connected to the gas pipeline; the gas alarm device and the smoke (temperature) alarm device are both electrically connected to the gas automatic shut-off device, the gas alarm device detects changes in ambient gas and provides danger signals and current to the gas automatic shut-off device; the smoke (temperature) alarm device detects changes in ambient smoke (temperature) and provides danger signals and current to the gas automatic shut-off device; The gas automatic shut-off device comprises a valve body, a sealing barrier, a transparent cavity, a valve body cover, a rubber straight rod, a reset spring, a spring inner rod, a spring sleeve, and an electromagnet. The valve body cover is located at the upper end of the valve body, and the spring sleeve and the reset spring are arranged below the valve body cover, and the valve body cover is connected to the upper part of the reset spring; the reset spring is sleeved on the spring sleeve; the spring inner rod is arranged in the spring sleeve; the lower ends of the spring sleeve and the spring inner rod are provided with a special iron sheet, and the upper end of the rubber straight rod is connected to the special iron sheet; the electromagnet accommodating chamber is arranged directly below the special iron sheet 25, and the electromagnet is located in the electromagnet accommodating chamber; below the electromagnet, from top to bottom, the The sealing interlayer, the transparent cavity, the sealing interlayer, the sealing rubber ball, the up-and-down moving channel, the air outlet, the buffer slope, and the air inlet are provided, and a sealing gasket is also provided between the sealing interlayer and the transparent cavity; the electromagnet accommodating chamber is provided at the upper end of the sealing interlayer; the rubber straight rod passes through the sealing interlayer, the transparent cavity, the sealing interlayer and is connected to the sealing rubber ball, and the sealing rubber ball is located in the up-and-down moving channel; at the lower part of the valve body, the air outlet is located at one side of the up-and-down moving channel and is connected to the up-and-down moving channel, the air inlet is located below the up-and-down moving channel, and an S-shaped gas channel is formed between the air inlet and the air outlet by providing a buffer slope; The electromagnet is connected with the gas alarm device and the smoke (temperature) alarm device via a wire.

2. The multifunctional gas alarm and automatic shutoff device according to claim 1 is characterized in that: The gas alarm device includes a gas front shell, a gas rear shell, an alarm light, a power indicator light, a buzzer, and a combustible gas sensor. The alarm light and the power indicator light are installed on the upper part of the gas front shell; the buzzer is installed inside the gas alarm device; the combustible gas sensor is installed inside the gas alarm device and connected to the alarm light and the buzzer through wires, and the combustible gas sensor detects combustible gas in the environment.

3. The multifunctional gas alarm and automatic shutoff device according to claim 2 is characterized in that: The smoke (temperature) alarm device comprises a smoke front shell, a smoke rear shell, the alarm light, the power indicator light, the buzzer, a smoke (temperature) sensor, and a circuit board. The alarm light and the power indicator light are installed on the upper part of the smoke front shell; the buzzer is installed inside the smoke (temperature) alarm device; The smoke (temperature) sensor is installed inside the smoke (temperature) alarm device and connected to the alarm light and the buzzer through wires. The smoke (temperature) sensor detects changes in ambient smoke (temperature).

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