Background
For products such as a gas stove, a gas water heater and the like, natural gas or liquefied gas leakage must be prevented during use, the existing leakage prevention method is generally to additionally install a gas monitor, professional personnel are required to get on the door in the mode, and an indoor circuit is often required to be modified so that the gas monitor is connected with a power supply, so that the installation process is complicated and the installation cost is high.
Utility model
The utility model aims at overcoming the shortcomings in the prior art, providing a power cord which has simple structure and convenient use, can effectively detect natural gas or liquefied gas and send out alarm and automatic power off.
In order to achieve the above purpose, the utility model adopts the following scheme: the utility model provides a power cord with gaseous detection, warning, electric leakage, function of opening circuit which characterized in that: comprises that
A shell body, a plurality of first connecting rods and a plurality of second connecting rods,
the circuit board is arranged in the shell and is connected with power lines at the upper end and the lower end of the shell;
the gas sensor is arranged on the circuit board and used for detecting liquefied gas or natural gas or carbon monoxide;
the power-off module is arranged on the circuit board and used for controlling the on-off of an output power line on the circuit board;
the leakage protection module is arranged on the circuit board and used for cutting off a power supply when the circuit leaks electricity;
the buzzer is arranged on the circuit board and used for sending out a buzzing alarm;
the micro control chip is arranged on the circuit board, is respectively connected with the gas sensor, the buzzer and the power-off module, and is used for receiving the detection signal of the gas sensor and controlling the buzzer and the power-off module to work according to the detection signal;
and the air inlet is arranged on the shell and used for communicating the inside and the outside of the shell.
As another kind of improvement of power cord with gaseous detection, warning, electric leakage, function of opening circuit be equipped with the mounting groove in the casing, the circuit board sets up in the mounting groove be equipped with the line hole on the upper and lower both ends of casing respectively down, the power cord sets up in the line hole be equipped with the joint groove on the inboard shells inner wall in line hole be equipped with the connector on the power cord tip, the connector sets up in the line hole and the joint is in the joint inslot.
As another kind of improvement of power cord with gaseous detection, warning, electric leakage, function of opening circuit be equipped with the LED pilot lamp on the circuit board.
As another kind of improvement of power cord with gaseous detection, warning, electric leakage, function of opening circuit shells inner wall is equipped with the leaded light post with the corresponding position of LED pilot lamp shells outer wall is equipped with the light trap with the corresponding position of leaded light post.
As another kind of improvement of power cord with gaseous detection, warning, electric leakage, function of opening circuit be equipped with test switch on the circuit board, test switch is connected with little control chip be equipped with test button on casing and the corresponding position of test switch.
As another kind of improvement of power cord with gaseous detection, warning, electric leakage, function of opening circuit be equipped with reset switch on the circuit board, reset switch is connected with little the control chip be equipped with reset button on casing and the corresponding position of reset switch.
As another kind of improvement of power cord with gaseous detection, warning, electric leakage, function of opening circuit shells inner wall is equipped with the stand pipe with test switch relevant position the shells outer wall is equipped with the through-hole with the corresponding position of stand pipe test button middle part outer wall is equipped with spacing bulge loop, test button one end is passed the stand pipe and is stretched out the through-hole, test button other end top is pressed on the test switch.
As another kind of improvement of power cord with gaseous detection, warning, electric leakage, function of opening circuit, the casing is including last casing and lower casing, the mounting groove sets up in the casing down be equipped with the joint annular under going up the casing on the lower extreme be equipped with the joint bulge loop with the corresponding position of joint annular in casing upper end down, the joint bulge loop is pegged graft in the joint annular.
As another kind of improvement of power cord with gaseous detection, warning, electric leakage, function of opening circuit the internal a plurality of lower screw spliced poles that are equipped with of inferior valve be equipped with the screw hole in the screw spliced pole down, the screw hole runs through lower shell outer wall go up shells inner wall and the corresponding position of screw spliced pole down and be equipped with the screw spliced pole be equipped with connecting screw down in screw spliced pole and the screw spliced pole.
As another improvement of the power line with the functions of gas detection, alarm, electric leakage and circuit breaking, a sucker is arranged on the bottom surface of the shell.
As another kind of improvement of power cord with gaseous detection, warning, electric leakage, function of opening circuit be equipped with a plurality of support columns in the mounting groove be equipped with a plurality of strengthening ribs between support column outer wall and the shells inner wall, the circuit board passes through connecting screw fixed connection and is in on the support column.
To sum up, the utility model discloses for its beneficial effect of prior art is: the utility model discloses simple structure, convenient to use can effectively detect natural gas or liquefied gas to send out police dispatch newspaper and auto-power-off, in addition, whether there is the electric leakage in the circuit that earth leakage protection module can the automated inspection plug cord, and auto-power-off under the condition of electric leakage, improved the security performance greatly.
Detailed description of the preferred embodiments
The above and further features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in figures 1-6, a power cord with gas detection, alarm, leakage and cut-off functions comprises
The number of the housings 1 is such that,
the circuit board 2 is arranged in the shell 1 and is connected with power lines 3 at the upper end and the lower end of the shell 1;
a gas sensor 4 disposed on the circuit board 2 for detecting liquefied gas or natural gas or carbon monoxide;
the power-off module is arranged on the circuit board 2 and used for controlling the on-off of an output power line on the circuit board;
the earth leakage protection module is arranged on the circuit board 2 and used for cutting off the power supply when the circuit leaks electricity;
a buzzer 5 arranged on the circuit board 2 for giving a buzzer alarm;
the micro control chip 6 is arranged on the circuit board 2, is respectively connected with the gas sensor 4, the buzzer 5 and the power-off module, and is used for receiving the detection signal of the gas sensor 4 and controlling the buzzer 5 and the power-off module to work according to the detection signal;
and the air inlet 7 is arranged on the shell 1 and is used for communicating the inside and the outside of the shell 1.
The utility model discloses during the use, be connected power cord 3 of 1 upper end of casing with the plug, be connected power cord 3 of 1 lower extreme of casing with the power cord and outside electrical apparatus device, wherein outside electrical apparatus device can be gas-cooker or gas heater, then insert the socket with the plug, at this moment, the commercial power gets into circuit board 2 through the plug, through circuit board 2 rectification, the step-down, produce 5V DC voltage, give little control chip 6, the power supply of gas sensor 4, little control chip 6 discerns the signal that gas sensor 4 detected, handle, judge the back and show through buzzer 5's different sound production modes. The sounding mode of the buzzer is as follows: slow sounding = mild alarm, fast sounding = moderate alarm, long sounding = severe alarm.
Meanwhile, the micro control chip 6 controls the power-off module to power off the gas stove or the gas water heater.
The user can detect gas kitchen or gas heater through the alarm, avoids unexpected the emergence.
The utility model discloses in still be equipped with the network module on the circuit board 2. The gas leakage information of the gas stove or the gas water heater can be automatically sent to a mobile phone or a computer of a user through the network module; the utility model discloses can long-range early warning, can in time early warning to the accident that produces coal gas or natural gas leakage at home.
In addition, the leakage protection module can automatically detect whether the circuit in the plug cord has leakage or not, and automatically cuts off the power supply under the condition of leakage, so that the safety performance is greatly improved.
The utility model discloses in be equipped with mounting groove 8 in casing 1, circuit board 2 sets up in mounting groove 8 be equipped with line hole 9 on the upper and lower both ends of casing 102 down respectively, power cord 3 sets up in the line hole 9 be equipped with joint groove 10 on the inboard casing 1 inner wall in line hole 9 be equipped with connector 11 in the power cord tip, the connector sets up the line is downthehole and the joint is in joint groove 10. A plurality of supporting columns 24 are arranged in the mounting groove 8, a plurality of reinforcing ribs 25 are arranged between the outer walls of the supporting columns 24 and the inner wall of the shell 1, and the circuit board is fixedly connected to the supporting columns 24 through connecting screws.
The utility model discloses in the shape of circuit board 2 and the shape phase-match of mounting groove 8, circuit board 2 is arranged in on the support column 24 to fix through the connecting screw that sets up on support column 24, receive the restriction of mounting groove 8 and screw in the use, make circuit board 2 can not rock, thereby avoid circuit board 2 impaired.
The utility model discloses be equipped with LED pilot lamp 12 on the circuit board 2. The utility model discloses in 1 inner wall of casing and the corresponding position of LED pilot lamp 12 are equipped with leaded light post 14 1 outer wall of casing and the corresponding position of leaded light post 14 are equipped with light trap 13. When the power cord is energized, the LED indicator lights. After the LED indicator is turned on, light emitted from the LED indicator passes through the light guide post 14 and is emitted from the light-transmitting hole 13.
The utility model discloses in be equipped with test switch 15 on the circuit board 2, test switch 15 is connected with little control chip 6 be equipped with test button 16 on casing 1 and the corresponding position of test switch 15.
The utility model discloses in 1 inner wall of casing and test switch 15 relevant position are equipped with stand pipe 17 1 outer wall of casing and the corresponding position of stand pipe 17 are equipped with through-hole 18 the outer wall of 16 middle parts of test button is equipped with spacing bulge loop 19, 16 one ends of test button are passed stand pipe 17 and are stretched out through-hole 18, 16 other ends of test button are pushed up and are pressed on test switch 15.
The utility model discloses in be equipped with reset switch 80 on the circuit board 2, reset switch 80 is connected with little control chip 6 be equipped with reset button 90 on casing 1 and the corresponding position of reset switch 80.
The utility model discloses in casing 1 is including last casing 101 and lower casing 102, mounting groove 8 sets up under in casing 102 go up casing 101 and be equipped with joint annular 20 under the end be equipped with joint annular 21 casing 102 upper end and the corresponding position of joint annular 20 are equipped with the joint bulge loop down, the joint bulge loop 21 is pegged graft in the joint annular 20.
The utility model discloses when well upper housing 101 assembles with lower housing 102, through being in joint lug 21 joint in the joint annular 20, then through the fix with screw. The connection is convenient and firm.
The utility model discloses in be equipped with a plurality of lower screw spliced poles 22 in the casing 102 down be equipped with the screw hole in the screw spliced pole 22 down, the screw hole runs through casing 102 outer wall down go up casing 101 inner wall and the corresponding position of lower screw spliced pole 22 and be equipped with screw spliced pole 23 be equipped with connecting screw in lower screw spliced pole 22 and the screw spliced pole 23.
The utility model discloses in be equipped with the sucking disc on the 1 bottom surface of casing. The shell 1 can be conveniently fixed on a smooth wall surface or a ceramic tile through the sucking disc.
The circuit layout of the circuit board 2 is shown in fig. 6. The gas sensor is a product sold in the market, can be purchased from Shenzhen Shenzhou electronic technology Limited company, and has the model number of: SGA-100. The micro control chip is a commercially available product, and can be a micro control chip with a model of WT2003H produced by Shenzhen Zhi Chuanyin electronics Limited company, or a micro control chip with a model of NV040D produced by Guangzhou nine-core electronics technology Limited company. The leakage protection module is a commercially available product and can be purchased from Xinmacroki vacuum appliances, inc. in Zhejiang.
The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.