CN112466095A

CN112466095A - Household gas alarm

Info

Publication number: CN112466095A
Application number: CN201910843210.XA
Authority: CN
Inventors: 黄志强
Original assignee: Zhuzhou Enn Gas Co ltd
Current assignee: Zhuzhou Enn Gas Co ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2021-03-09

Abstract

The invention provides a household gas alarm, which comprises a shell and a gas detection device, wherein the shell is provided with a gas inlet and a gas outlet; an alarm lamp and a buzzer are arranged on the outer wall of the shell; the gas detection device comprises an infrared emitter arranged at one end in the shell, an infrared power meter arranged at the other end in the shell and a controller arranged in the shell; wherein, be provided with the battery in the casing, the controller respectively with infrared light power meter, alarm lamp and buzzer signal connection. The invention has the beneficial effects that: the gas concentration at the interface of the gas pipeline can be detected by the arranged gas detection device; the purpose of installing the gas detection device can be achieved through the arranged shell; through the alarm and the buzzer, the purpose of timely prompting personnel in a room when gas leaks can be achieved.

Description

Household gas alarm

Technical Field

The invention relates to the field of household gas alarm, in particular to a household gas alarm.

Background

The gas alarm is used for monitoring gas leakage, and the most common scene is a household gas leakage alarm for residents.

At present, the market price of household gas alarms is thousands of yuan and dozens of money, the price is different, the quality is difficult to distinguish, and the alarms all adopt electrochemical or semiconductor gas detection sensors.

The principle of the electrochemical gas detection sensor is that methane in gas and chemical liquid in the sensor are subjected to electrolytic reaction to obtain voltage, so that the methane concentration is converted, and therefore, the chemical liquid is not long in service time and is easy to pollute. The semiconductor sensor is a comprehensive sensor, has different reactions to various gas contents in gas, has inaccuracy although methane is detected with emphasis, and is easy to age and damage under the oil smoke environment.

Although the alarm is installed in a user home, the sensors have the characteristics of serious false alarm, failure and short service life based on principle, and the general acceptance of the users to the products is not high.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a household gas alarm.

The problems of instability, reliability, low precision and short service life of the existing gas alarm are solved.

The invention is realized by the following technical scheme:

the invention provides a household gas alarm, which comprises: a housing, and a gas detection device;

an alarm lamp and a buzzer are arranged on the outer wall of the shell;

the gas detection device comprises an infrared emitter arranged at one end in the shell, an infrared power meter arranged at the other end in the shell and a controller arranged in the shell; the controller is respectively in signal connection with the infrared optical power meter, the alarm lamp and the buzzer.

Preferably, a plurality of suckers are uniformly arranged on one side wall of the shell, and the shell is fixedly arranged at the position of the gas pipe joint through the suckers.

Preferably, a plurality of air inlets are formed in the side wall of the shell close to the joint of the gas pipe, and a negative pressure pump is arranged on the side wall of the shell opposite to the plurality of air inlets.

Preferably, the gas pipe also comprises an electromagnetic valve which is arranged in the gas pipe and is in signal connection with the controller.

Preferably, a storage battery is arranged in the shell, a power line connected with the storage battery is arranged on the side wall of the shell, and a power plug is arranged at the outer end of the power line.

The invention has the beneficial effects that: the gas concentration at the interface of the gas pipeline can be detected by the arranged gas detection device; the purpose of installing the gas detection device can be achieved through the arranged shell; through the alarm and the buzzer, the purpose of timely prompting personnel in a room when gas leaks can be achieved.

Drawings

Fig. 1 is a schematic structural diagram of a household gas alarm provided by an embodiment of the invention;

FIG. 2 is a schematic side view of a household gas alarm according to an embodiment of the present invention;

fig. 3 is a schematic view of an installation position of an electromagnetic valve of a household gas alarm provided by an embodiment of the invention.

Detailed Description

The following detailed description of specific embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

Firstly, in order to facilitate understanding of the household gas alarm provided by the embodiment of the application, an application scenario of the household gas alarm is explained, and the household gas alarm provided by the embodiment of the application is used for monitoring whether household gas leaks; the existing household gas alarm has the problems of serious false alarm, failure and short service life. The household gas alarm provided by the embodiment of the application is explained in the following with the accompanying drawings.

The invention provides a household gas alarm which comprises a gas detection device and a shell 1, wherein the gas detection device is used for monitoring whether household gas leaks or not, and the shell 1 is used for installing the gas detection device.

Referring first to fig. 1, fig. 1 is a schematic structural diagram of a household gas alarm provided by an embodiment of the present invention. As shown in fig. 1, the present application includes a housing 1, and a gas detecting device is installed in the housing 1. A negative pressure pump 6 is installed on one side wall of the shell 1, and a plurality of air inlet holes 5 are formed in the other side wall of the shell 1. In order to adapt the negative pressure pump 6 to the housing 1, the negative pressure pump 6 in the present application should be a micro negative pressure pump commonly used in the prior art. When the air conditioner is used, the negative pressure pump 6 is switched on, the negative pressure pump 6 can discharge the air in the shell 1 outwards, and the indoor air can automatically enter the shell 1 under the action of pressure difference; when gas leaks from the room, air with the gas enters the casing 1.

With continued reference to fig. 1, the gas detection device includes an infrared emitter 8 disposed in the housing 1 and fixedly connected to the top plate of the housing 1, and an infrared power meter 9 matched with the infrared emitter 8 is fixedly connected to a position of the upper surface of the bottom plate of the housing 1 opposite to the infrared emitter 8. The infrared power meter 9 receives the infrared light generated by the infrared emitter 8 and calculates the power of the received infrared light. Since the fuel gas contains methane gas, and the methane gas can absorb infrared light with a specific wavelength in the infrared light, when the air containing fuel gas enters the casing 1, the air containing fuel gas can absorb part of the infrared light generated by the infrared emitter 8.

With continued reference to fig. 1, a controller 10 in signal connection with the infrared power meter 9 is further disposed in the housing 1; and a warning lamp 2 and a buzzer 3 which are in signal connection with the controller 10 are arranged on the side wall of the shell 1. The controller 10 is a common single chip microcomputer in the prior art, and in order to make the controller 10 and the housing 1 fit with each other, a micro single chip microcomputer of a proper type is actually selected. Can give controller 10 with calculating the structure transmission after the power of received infrared light is calculated to infrared power meter 9, controller 10 handles the information that obtains, when infrared power that controller 10 obtained infrared power meter 9 and obtained is less than the judgement of a definite value, controller 10 just can draw the structure that the air that gets into in casing 1 contains the gas, thereby controller 10 just can judge that indoor gas has taken place to leak, thereby controller 10 controls 2 scintillations of alarm lamp, and control bee calling organ 3 makes a sound, thereby remind the personnel gas that is located indoor to have taken place to leak. The controller 10 is in signal connection with the infrared power meter 9, the alarm lamp 2 and the buzzer 3 respectively, and specific wiring modes among the controllers can be wiring according to actual conditions.

In order to provide electric energy for the electric components in the casing 1, with reference to fig. 1, a storage battery 11 may be disposed in the casing 1, the storage battery 11 is electrically connected to the negative pressure pump 6, the controller 10, the infrared emitter 8, the infrared power meter 9, the alarm lamp 2, and the buzzer 3, and the specific wiring manner among the storage battery 11 and the negative pressure pump may be wired according to actual conditions. And the storage battery 11 is also connected with a power line 12 penetrating through the side wall of the shell 1, and one end of the power line 12 far away from the storage battery 11 is fixedly connected with a power plug 13. When the electric energy needs to be supplemented to the storage battery 11, the power plug 13 can be connected with the indoor socket, so that the purpose of supplementing the electric energy to the storage battery 11 is achieved.

In order to arrange the present invention at a proper position in a room, reference is made to fig. 2, and fig. 2 is a schematic side view of a household gas alarm provided by an embodiment of the present invention. As can be seen from fig. 2, a plurality of suction cups 4 are fixedly connected to one side of the housing 1. When the device is required to be installed, the shell 1 can be stuck to the position close to the interface of the gas pipeline indoors through the sucking disc 4.

In order to further improve indoor safety, an electromagnetic valve 7 may be further disposed in the gas pipeline, and specifically, when the electromagnetic valve 7 is disposed, reference may be made to fig. 3, where fig. 3 is a schematic view of an installation position of an electromagnetic valve of a household gas alarm provided in an embodiment of the present invention. As can be seen from fig. 3, the solenoid valve 7 is installed in the gas pipeline at a position close to the interface in the direction of gas flow, and the solenoid valve 7 is further in signal connection with the controller 10. When the controller 10 obtains that the indoor gas leaks, the controller 10 controls the electromagnetic valve 7 to close, thereby blocking the gas from continuing to leak from the gas pipeline interface, and further protecting the safety of indoor articles and personnel.

In the embodiment, the household gas alarm provided by the embodiment of the application can obviously improve the stability and the precision of the household gas alarm and obviously prolong the service life of the household gas alarm.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.

Claims

1. A household gas alarm, comprising: a housing, and a gas detection device;

an alarm lamp and a buzzer are arranged on the outer wall of the shell;

2. The household gas alarm device as claimed in claim 1, wherein a plurality of suckers are uniformly arranged on one side wall of the housing, and the housing is fixedly arranged at the position of the gas pipe joint through the suckers.

3. The household gas alarm of claim 2, wherein a plurality of gas inlet holes are formed in a side wall of the housing close to the gas pipe joint, and a negative pressure pump is arranged on a side wall of the housing opposite to the plurality of gas inlet holes.

4. A domestic gas alarm according to claim 1 further comprising a solenoid valve disposed within the gas pipe in signal communication with the controller.

5. A domestic gas alarm according to claim 1 wherein a battery is provided within the housing, a power cord connected to the battery is provided on a side wall of the housing, and a power plug is provided at an outer end of the power cord.