A gas supply interruption system

Abstract

The application discloses a gas supply cut-off system, which comprises a host computer and a power cut-off component, wherein the host computer is in signal connection with the power cut-off component; the power cut-off component comprises a first shell, a controller and a battery arranged on the first shell; the first shell is provided with a positive electrode conductive part and a negative electrode conductive part matched with the battery; the positive electrode conductive part and the negative electrode conductive part are connected in series with the battery and the controller. The power of a household gas meter can be directly controlled to turn off a household gas main switch. Thus, the gas supply can be directly turned off from the position of the household gas meter, and even if the stove itself fails to turn off the fire, the stove can be ensured to be turned off.

Description

Technical Field

[0001] This invention relates to the field of household appliances, and more particularly to a gas supply interruption system. Background Technology

[0002] Currently available remote flameout controllers for stoves, such as CN111412493A, are household stove automatic flameout alarm devices. These include a working box and suction cups fixedly connected to the upper surface of the working box. The suction cups are symmetrically arranged on both sides, allowing the device to adhere to the stove. An infrared sensor is fixed to the front of the working box to detect whether anyone is present. When the infrared sensor detects that no one is in front of the stove for an extended period, the device will place a vibrating plate inside the working chamber. A striking device will continuously strike the vibrating plate, causing it to vibrate and produce sound, alerting anyone in the room that the stove is operating. A lever will then switch the stove to the off position, preventing the stove's cookware from burning dry and potentially exploding or causing a fire when the user is not in the room. This invention is portable, detachable, widely applicable, and cost-effective.

[0003] Currently, remote controllers for stoves are used to turn off the stove, and they mostly operate directly on the stove's knobs. Turning the knob to the off position turns off the stove and extinguishes the flame. However, when the stove's knob malfunctions mechanically, turning the knob will not turn off the stove. Therefore, a stove flameout device that can handle stove malfunctions is needed. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a stove flameout device that can cope with stove malfunctions.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A gas supply interruption system includes a main unit and a power interruption component, wherein the main unit is signal-connected to the power interruption component; the power interruption component includes a first housing and a controller disposed on the first housing; the first housing is capable of housing a battery and is provided with a positive conductive part and a negative conductive part matching the battery, wherein the positive conductive part and the negative conductive part are connected in series between the battery and the controller.

[0007] By adopting the above technical solution, the first housing of the power-off component is connected in series with other power sources of the appliance, such as AA batteries. The controller can switch the connection or disconnection between the positive and negative conductive parts and the battery, thereby disconnecting the power supply to the appliance and stopping its operation. Existing gas meters use AA batteries as DC power sources and automatically shut off the gas switch when power is lost. By connecting the first housing of the power-off component in series with the AA battery of the gas meter, the power to the gas meter can be directly controlled, thus shutting off the main gas switch. This allows the gas supply to be shut off directly from the gas meter, ensuring the stove is extinguished even if it malfunctions and cannot be turned off.

[0008] As an improvement, the controller is a control chip, and the positive terminal of the battery is electrically connected to the positive conductive part through the control chip, or the negative terminal of the battery is electrically connected to the negative conductive part through the control chip.

[0009] By adopting the above technical solution, the control chip, as a controller, can be set in parallel with the battery on the side of the first housing and connected in series with the battery, saving internal space of the power-off component.

[0010] As an improvement, the control chip is electrically connected to the battery, and the control chip operates using battery power.

[0011] As an improvement, the first housing has a partition between the battery and the positive / negative conductive part, and the control chip is disposed on the side of the partition; the battery is electrically connected to the control chip through a conductive component, and the control chip is electrically connected to the positive / negative conductive part.

[0012] By adopting the above technical solution, the first housing is provided with a positive conductive part and a negative conductive part at both ends, which are the same as those of the battery. Since the battery is in an open circuit state between the separator and the positive / negative conductive part, it needs to be connected in series through a control chip.

[0013] As an improvement, the first housing matches the battery slot of the gas meter, and the positive and negative conductive parts are respectively located at both ends of the first housing. Specifically, the length and width dimensions of the first housing, as well as the positions of the positive and negative conductive parts, are the same as those of a standard AA battery. The battery inside the first housing is smaller than a standard AA battery and can be a AAA battery or other small-sized batteries.

[0014] By adopting the above technical solution, the power-off component can be directly installed to replace the AA battery in the gas meter, thus achieving the simple and quick modification of the gas meter to cut off power and gas supply.

[0015] As an improvement, the control chip includes a signal receiving element, a power-off chip, and a power-off switch. The signal receiving element and the power-off chip are signal-connected, and the power-off chip and the power-off switch are signal-connected.

[0016] Specifically, the power-off component and the first power source located in the first housing form a control module; the gas meter, the control module, and the power-off switch of the control module are connected in series with the second power source.

[0017] When the power-off switch is connected, the first power supply is connected in parallel with the signal receiving element and the power-off chip in the power-off component.

[0018] When the power-off switch is open, the first power source is connected in series with the signal receiving element and the power-off chip in the power-off assembly.

[0019] More preferably, the control chip further includes a boost module, which is connected in series with the signal receiving element and the power-off chip.

[0020] By adopting the above technical solution, the control chip can control the battery to power off or connect by receiving external signals. It can be a wired signal connection or a wireless signal connection. For ease of installation, a wireless signal connection is adopted here.

[0021] As an improvement, a backup power supply box is also included, the backup power supply box including a second housing; the second housing is capable of housing a battery; the backup power supply box is electrically connected to the control chip.

[0022] By adopting the above technical solution, the battery inside the first housing is connected in parallel with the backup power box to serve as a backup power source for the control chip, thereby improving the battery life of the power-off component.

[0023] As an improvement, the second housing is provided with a positive active electrode and a negative active electrode that are electrically connected to the positive and negative terminals of the battery inside the second housing, respectively. The first housing is provided with a conductive patch that matches the positive and negative active electrodes. The conductive patch is also provided with a magnetic element that can attract the positive and negative active electrodes. The conductive patch is electrically connected to the control chip.

[0024] By adopting the above technical solution, the magnetic component attracts the positive and negative active electrodes to the conductive patch, ensuring good contact between the conductive patch and the positive and negative active electrodes. The positive and negative active electrodes can also be manually adjusted to move away from the conductive patch, facilitating disassembly and installation.

[0025] As an improvement, the second housing includes a main body and a cover plate. The main body has a mounting compartment that matches the battery and an opening at the top. The cover plate is located below the main body and forms a sliding channel with the main body.

[0026] The sliding channel has a positive conductive sheet that is electrically connected to the positive electrode of the battery and a negative conductive sheet that is electrically connected to the negative electrode arranged parallel to each other on both sides.

[0027] A sliding conductive element is provided in the sliding channel. The sliding conductive element includes a positive conductive plate electrically connected to the positive electrode conductive sheet, a positive limiting element electrically connected to the positive conductive plate, and a positive movable electrode disposed on the positive limiting element and capable of moving to both sides of the second housing.

[0028] The sliding conductive component also includes a negative conductive plate electrically connected to the negative conductive sheet, a negative limiting component electrically connected to the negative conductive plate, and a negative movable electrode disposed on the negative limiting component and capable of moving to both sides of the second housing.

[0029] Specifically, the positive conductive plate is made of a conductive material (such as copper) inside the circuit board, and is covered with an insulating layer on the outside. By partially removing the insulating layer, it achieves the effect of simultaneously connecting to the positive conductive plate and the positive limiting component. Similarly, the negative conductive plate is made of a conductive material (such as copper) inside the circuit board, and is covered with an insulating layer on the outside. By partially removing the insulating layer, it achieves the effect of simultaneously connecting to the negative conductive plate and the negative limiting component.

[0030] By adopting the above technical solution, the positive and negative active electrodes are disposed on the sliding conductive member and can change their positions on the side of the backup power box as the sliding conductive member moves, facilitating reliable electrical connection when the conductive patch of the first housing is in different positions. The positive and negative active electrodes are respectively connected to the positive and negative terminals of the battery through a limiting member, a conductive plate, and a conductive sheet, so that a reliable electrical connection can be maintained between the active electrodes and the battery no matter where the sliding conductive member slides to.

[0031] As an improvement, the host is equipped with a timing module, which can send a power-off signal to the power-off component according to a set time.

[0032] By adopting the above technical solution, users can set a certain time on the main unit to cut off the gas supply to the house, thereby turning off the stove. For example, when food is placed on the stove to stew, no management is required after setting the time, and the stove will automatically turn off when the time is up.

[0033] As an improvement, a remote control terminal is also included. The remote control terminal is connected to the host via a signal. The remote control terminal can control the host to send a power-off signal to the power-off component. The remote control terminal can also adjust the time set by the timing module.

[0034] By adopting the above technical solution

[0035] As an improvement, the host is equipped with a gas sensor and an alarm module. The alarm module is connected to the gas sensor via a signal. When the gas sensor detects gas, it can control the host to send a power-off signal to the power-off component.

[0036] Compared with the prior art, the beneficial effects of the present invention are:

[0037] The controller can switch the connection or disconnection between the positive and negative conductive parts and the battery, thereby disconnecting the power supply to the appliance and stopping its operation. Existing gas meters use AA batteries as DC power sources, automatically shutting off the gas switch when power is lost. By connecting the first housing of the power-off component in series with the AA battery in the gas meter, the power to the gas meter can be directly controlled, thus shutting off the main gas switch. This allows for direct shut-off of the gas supply from the gas meter, ensuring the stove flame is extinguished even if the stove itself malfunctions and cannot be turned off. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of a power-off component according to the present invention.

[0039] Figure 2 This is a cross-sectional view of a power-off component according to the present invention.

[0040] Figure 3 This is an overall structural diagram of the backup power supply box of a power-off component according to the present invention.

[0041] Figure 4 This is a schematic diagram of the backup power box of a power-off component of the present invention with the cover plate removed.

[0042] Figure 5 This is a simplified schematic diagram illustrating the connection method between a gas leak prevention device and a household gas meter according to the present invention.

[0043] Figure 6 This is a simplified circuit diagram of a power-off component according to the present invention.

[0044] Figure 7 This is a circuit connection diagram of a power-off component combined with a specific structure according to the present invention.

[0045] Figure 8 This is a cross-sectional view of the backup power supply box of a power-off component according to the present invention.

[0046] Figure 9 This is a schematic diagram of the conductive patch structure of the first housing in another embodiment of a power-off component of the present invention.

[0047] Wherein, 1: First housing; 2: Battery; 3: Positive conductive part; 4: Negative conductive part; 5: Control chip; 6: Separator; 7: Signal receiving element; 8: Second housing; 9: Conductive patch; 10: Positive active electrode; 11: Negative active electrode; 12: Magnetic component; 13: Main body; 14: Cover plate; 15: Positive conductive sheet; 16: Negative conductive sheet; 17: Positive conductive plate; 18: Negative conductive plate; 19: Positive limiting component; 20: Negative limiting component; 21: Power-off chip; 22: Boost module; 23: Power-off switch; 24: Conductive component. Detailed Implementation

[0048] The present invention will now be further described in conjunction with the accompanying drawings and embodiments:

[0049] The present invention will be further described below with reference to specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0050] It should be noted that when a component / part is referred to as being "set on" another component / part, it can be directly set on the other component / part or there may be an intervening component / part. When a component / part is referred to as being "connected / linked" to another component / part, it can be directly connected / linked to the other component / part or there may be an intervening component / part. The term "connected / linked" as used herein can include electrical and / or mechanical physical connections / links. The term "including / comprises" as used herein means the presence of a feature, step, or component / part, but does not exclude the presence or addition of one or more other features, steps, or components / parts. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0051] 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 application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. Furthermore, in the description of this application, the terms "first," "second," etc., are used for descriptive purposes and to distinguish similar objects only; there is no order between them, nor should they be construed as indicating or implying relative importance. Additionally, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0052] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0053] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0054] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0055] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0056] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0057] Implementation Case 1:

[0058] As attached Figure 1-6 As shown, a gas supply interruption system includes a main unit and a power interruption component. The main unit is signal-connected to the power interruption component. The power interruption component includes a first housing 1 and a controller and a battery 2 disposed on the first housing 1. The first housing 1 is provided with a positive conductive part 3 and a negative conductive part 4 that match the battery 2. The positive conductive part 3 and the negative conductive part 4 are connected in series between the battery 2 and the controller.

[0059] By adopting the above technical solution, the first housing 1 of the power-off component is connected in series with other power sources of the appliance (such as AA battery 2). The controller can switch the connection or disconnection between the positive conductive part 3, the negative conductive part 4, and the battery 2, thereby disconnecting the power supply to the appliance and stopping its operation. Existing gas meters use AA battery 2 as a DC power source, automatically shutting off the gas switch when power is lost. By connecting the first housing 1 of the power-off component in series with the AA battery 2 of the gas meter, the power to the gas meter can be directly controlled, thus shutting off the main gas switch. This allows for direct shut-off of the gas supply from the gas meter, ensuring the stove remains extinguished even if it malfunctions and cannot be turned off.

[0060] The controller is a control chip 5. The positive terminal of the battery 2 is electrically connected to the positive conductive part 3 through the control chip 5, or the negative terminal of the battery 2 is electrically connected to the negative conductive part 4 through the control chip 5.

[0061] The control chip 5, acting as a controller, can be arranged in parallel with the battery 2 on the side of the first housing 1 and connected in series with the battery 2, saving internal space of the power-off component.

[0062] The control chip 5 is electrically connected to the battery 2, and the control chip 5 is powered by the battery 2.

[0063] The first housing 1 has a partition 6 between the battery 2 and the positive conductive part 3 / negative conductive part 4; the battery 2 and the positive conductive part 3 / negative conductive part 4 are electrically connected by the control chip 5 bypassing the partition 6.

[0064] The first housing 1 has a positive conductive part 3 and a negative conductive part 4 at both ends, which are the same as those of the battery 2. Since the separator 6 of the battery 2 is in an open circuit state with the positive conductive part 3 / negative conductive part 4, it needs to be connected in series with the control chip 5 through a conductive component.

[0065] The first housing 1 matches the battery slot 2 of the gas meter, and the positive conductive part 3 and the negative conductive part 4 are respectively disposed at both ends of the first housing 1. Specifically, the length and width dimensions of the first housing 1, as well as the positions of the positive conductive part 3 and the negative conductive part 4, are the same as those of a typical AA battery 2. The battery 2 inside the first housing 1 is smaller than a typical AA battery 2, and can be a AAA battery 2 or other small-sized batteries 2.

[0066] The power-off component can be directly installed to replace the AA battery 2 inside the gas meter, thus easily and quickly realizing the power and gas cut-off modification of the gas meter.

[0067] The control chip 5 includes a signal receiving element 7 and a power-off element, which are connected by a signal.

[0068] The control chip 5 can control the battery 2 to power off or connect by receiving external signals. It can be a wired signal connection or a wireless signal connection. For ease of installation, a wireless signal connection is used here.

[0069] It also includes a backup power box, which includes a second housing 8 and a battery 2 disposed within the second housing 8; the backup power box is electrically connected to the control chip 5 and to the battery 2 within the first housing 1.

[0070] The battery 2 inside the first housing 1 is connected in parallel with the backup power box to serve as a backup power source for the control chip 5, thereby improving the battery life of the power-off components.

[0071] The second housing 8 is provided with a positive active electrode 10 and a negative active electrode 11 that are electrically connected to the positive and negative terminals of the battery 2 inside the second housing 8, respectively. The first housing 1 is provided with a conductive patch 9 that matches the positive active electrode 10 and the negative active electrode 11. The conductive patch 9 is also provided with a magnetic element that can attract the positive active electrode 10 and the negative active electrode 11. The conductive patch 9 is electrically connected to the control chip 5.

[0072] The magnetic component attracts the positive movable electrode 10 and the negative movable electrode 11 to the conductive patch 9, ensuring good contact between the conductive patch 9 and the positive and negative movable electrodes 10 and 11. The positive and negative movable electrodes 10 and 11 can also be manually adjusted away from the conductive patch 9 for easy disassembly and installation.

[0073] The second housing includes a main body and a cover plate. The main body has a mounting compartment that matches the battery and an opening at the top. The cover plate is located below the main body and forms a sliding channel around the main body.

[0074] The sliding channel has a positive conductive sheet that is electrically connected to the positive electrode of the battery and a negative conductive sheet that is electrically connected to the negative electrode arranged parallel to each other on both sides.

[0075] A sliding conductive element is provided in the sliding channel. The sliding conductive element includes a positive conductive plate electrically connected to the positive electrode conductive sheet, a positive limiting element electrically connected to the positive conductive plate, and a positive movable electrode disposed on the positive limiting element and capable of moving to both sides of the second housing.

[0076] The sliding conductive component also includes a negative conductive plate electrically connected to the negative conductive sheet, a negative limiting component electrically connected to the negative conductive plate, and a negative movable electrode disposed on the negative limiting component and capable of moving to both sides of the second housing.

[0077] The positive and negative movable electrodes are mounted on the sliding conductive member and can change their positions on the side of the backup power box as the sliding conductive member moves, facilitating reliable electrical connection when the conductive patch of the first housing is in different positions. The positive and negative movable electrodes are connected to the positive and negative terminals of the battery respectively through a limiting member, a conductive plate, and a conductive sheet, so that a reliable electrical connection can be maintained between the movable electrodes and the battery no matter where the sliding conductive member slides.

[0078] The host is equipped with a timing module, which can send a power-off signal to the power-off component according to a set time.

[0079] Users can set a time limit on the main unit to cut off the gas supply to the house, thereby turning off the stove. For example, when food is placed on the stove to stew, no management is required after setting the time, and the stove will automatically turn off when the time is up.

[0080] It also includes a remote control terminal, which is signal-connected to the host. The remote control terminal can control the host to send a power-off signal to the power-off component, and the remote control terminal can adjust the time set by the timing module.

[0081] The host is equipped with a gas sensor and an alarm module. The alarm module is connected to the gas sensor. When the gas sensor detects gas, it can control the host to send a power-off signal to the power-off component.

[0082] Implementation Case 2:

[0083] As attached Figure 9 As shown, the conductive patch is bent, with one end connected to the control chip and the other end bent and extended to the side of the first housing. The magnetic component is a rectangular strip-shaped pin disposed inside the first housing and supports the conductive patch to extend outward from the first housing.

[0084] The working principle of this invention is as follows:

[0085] The power-off component has the same dimensions as the battery 2 used in the gas meter (usually an AA battery). One or more AA batteries 2 used in the gas meter are replaced with the power-off component, meaning the power-off component, AA battery 2, and gas meter are connected in series. When the signal receiving element 7 of the power-off component receives a command from the signal transmitter, the control chip 5 is disconnected. Since the two ends of the control chip 5 are connected in series with the battery 2 and the positive conductive part 3 / negative conductive part 4 in the power-off component, the disconnection of the control chip 5 causes the power-off component to disconnect, thereby disconnecting the power supply line of the gas meter. In the power-off state, the gas meter will automatically close the gas valve, preventing gas from entering the household through the gas meter, and all gas leak points in the household will no longer leak gas.

[0086] The positive active electrode 10 and negative active electrode 11 of the backup power box can extend from the side and be attracted by the magnetic component 12 (a rod magnet in this figure) to contact the conductive patch 9 on the upper side of the first housing 1, so that the battery 2 in the second housing 8 is connected in parallel with the battery 2 in the first housing 1, and the battery 2 in the second housing 8 is connected in series with the control chip 5.

[0087] Set up a control terminal, which can be a remote control, mobile app, or other form. This allows the control terminal to send a signal to the power-off component, causing the control chip 5 to lose power. This is convenient for situations where the user is not indoors but needs to shut off the indoor gas supply, such as when cooking food and needing to turn off the stove on time, or when someone suddenly needs to be away from home for an extended period and cannot return to turn off the gas valve.

[0088] The specific connection relationships between the power-off component of this invention, the battery, and the gas meter are shown in the appendix. Figure 6 and 7As shown, the positive conductive part, negative conductive part, gas meter, and power-off switch are connected in series on the main circuit. Between the positive and negative conductive parts, there are two parallel circuits: one is a branch connecting the positive conductive part, power-off switch, power-off chip, signal receiving element, boost module (removable), and negative conductive part; the other is a branch connecting the positive conductive part, power-off switch, battery, and negative conductive part. With this connection, when the power-off switch is on, current flows from the positive conductive part through the two parallel circuits to the negative conductive part, powering the gas meter and power-off assembly. When the power-off switch is off, the gas meter loses power and stops working. A series circuit is formed between the positive and negative conductive parts: battery, power-off chip, signal receiving element, boost module (removable), and battery, powering the power-off assembly.

[0089] Basic working principle: Domestic natural gas pipelines are laid and installed by natural gas companies, and gas meters are also provided by natural gas companies. Natural gas companies conduct regular inspections to ensure a safe gas supply. Currently, gas shut-off devices include adding complex structures to close the gas valves on the original natural gas pipelines, or installing automatic shut-off valves on the gas pipelines. The first method has drawbacks of complex structure and high cost, while the second method violates the management regulations of natural gas companies and poses safety hazards.

[0090] Gas meters supplied by natural gas companies typically have multiple batteries connected in series to power them, usually AA batteries. When one battery runs out of power, the solenoid valve inside the gas meter closes, thus cutting off the gas supply. This patent utilizes this action of the gas meter to achieve a safe and simple gas shut-off.

[0091] To illustrate with a specific embodiment, the power-off component includes a first housing. The size of the first housing matches the size of the original gas meter's AA battery. A AAA battery is installed in the first housing, allowing the first housing to be inserted into the original gas meter's battery slot without requiring modification of the gas meter. Taking the example of a control chip electrically connected between the positive conductive part and the positive terminal of the AAA battery (of course, the control chip can also be electrically connected between the negative conductive part and the negative terminal of the battery), the AAA battery is installed between the negative conductive part and a conductive component. The negative conductive part and the conductive component can be the conductive plates at both ends of a traditional battery mounting slot. For example, the negative conductive part can also be equipped with a torsion spring for conducting electricity and pressing the battery. A partition (which can be an insulator or not in contact with either the conductive component or the positive conductive part) is placed between the conductive component and the positive conductive part, ensuring that the battery's positive terminal is not directly connected to the positive conductive part. The control chip is electrically connected between the conductive component and the positive conductive part (or, alternatively, the conductive component can be omitted, and the control chip can be directly connected to the battery's positive terminal). Thus, when powering the gas meter, the circuit flow is as follows: battery positive terminal - conductive component - control chip - positive conductive plate (i.e., when powering the gas meter, the control chip is connected in series between the AAA battery and the positive conductive part). In the case of an open circuit in the control chip, although the positive and negative conductive parts of the first housing are connected to the original gas meter battery compartment, they are not conductive. With the control chip connected, the AAA battery supplies power to the gas meter in the aforementioned current direction. When the main unit detects that the gas concentration exceeds the standard (gas leak), or when the timer set by the main unit reaches the preset time, it will send a signal to the control chip. The control chip will cut off the power supply (the control chip can be cut off by a traditional MOS switch. Since the signal receiving module and switch module of the control chip are conventional existing technologies, they will not be described in detail in this manual), thereby cutting off the power supply of the No. 7 battery. Without power supply to the gas meter, the gas supply will be cut off.

[0092] In addition, the No. 7 battery powers both the gas meter and the control chip via the circuitry. Since the No. 7 battery has less charge than the original No. 5 battery, it needs to be replaced more frequently. To extend the replacement cycle, this patent also includes a backup power box. The backup power box has the same casing as the No. 7 battery, but it does not contain the control chip. The No. 7 battery inside the backup power box can be called a backup battery (although it is a backup battery, it still needs to continuously power the gas meter and can also serve as a secondary power source for the control chip). The backup power box replaces the original No. 5 battery in the gas meter. The backup battery and the No. 7 battery in the power-off component are connected in series to power the gas meter. The backup power box has positive and negative active electrodes electrically connected to the positive and negative terminals of the backup battery, respectively. This way, the backup battery can power not only the gas meter but also the control chip. The No. 7 battery and the backup battery are connected in parallel to power the control chip, which can extend the frequency of battery replacement.

[0093] In summary, those skilled in the art, after reading this invention document, can make various other corresponding modifications to the technical solutions and concepts based on this invention without creative mental effort. Different application scenarios all fall within the scope of protection of this invention.

Claims

1. A gas supply interruption system, used in conjunction with a gas meter to cut off the gas supply, characterized in that, The device includes a main unit, a power-off component that can be installed in the battery slot of a gas meter, and a backup power supply box that can be installed in another battery slot of the gas meter. The main unit is signal-connected to the power-off component. The power-off component includes a first housing (1) on which a battery (2) can be installed and a controller that can cut off the power supply to the battery (2). The first housing (1) is provided with a positive conductive part (3) and a negative conductive part (4) that match the battery (2). The positive conductive part (3) and the negative conductive part (4) are connected in series between the battery (2) and the controller. The controller is a control chip (5). The backup power box supplies power to both the gas meter and the control chip (5). The backup power box includes a second housing (8). The second housing (8) may be fitted with a battery (2). The second housing (8) is provided with a positive active electrode (10) and a negative active electrode (11) that are electrically connected to the positive and negative poles of the battery (2) inside the second housing (8), respectively. The first housing (1) is provided with a conductive patch (9) that matches the positive active electrode (10) and the negative active electrode (11).

2. The gas supply interruption system as described in claim 1, characterized in that, The positive electrode of the battery (2) is electrically connected to the positive electrode conductive part (3) through the control chip (5), or the negative electrode of the battery (2) is electrically connected to the negative electrode conductive part (4) through the control chip (5).

3. The gas supply interruption system as described in claim 2, characterized in that, A separator (6) and a conductive element (24) are provided between the battery (2) and the positive electrode conductive part (3) or the negative electrode conductive part (4). The conductive element (24) is disposed between the battery (2) and the separator (6) for electrically connecting the control chip (5) and the battery (2). The control chip (5) bypasses the separator (6) and is electrically connected to the positive electrode conductive part (3) or the negative electrode conductive part (4).

4. The gas supply interruption system as described in claim 2, characterized in that, The first housing (1) is matched with the battery (2) slot of the gas meter, and the positive conductive part (3) and the negative conductive part (4) are respectively disposed at both ends of the first housing (1).

5. The gas supply interruption system as described in claim 2, characterized in that, The control chip (5) includes a signal receiving element (7) and a power-off element, which are connected by a signal.

6. The gas supply interruption system as described in claim 2, characterized in that, The conductive patch (9) is also provided with a magnetic component (12) that can attract the positive active electrode (10) and the negative active electrode (11); the conductive patch (9) is electrically connected to the control chip (5).

7. The gas supply interruption system as described in claim 6, characterized in that, The second housing (8) includes a main body (13) and a cover plate (14). The main body (13) is provided with a mounting compartment that matches the battery and has an opening at the top. The cover plate (14) is located below the main body (13) and surrounds the main body (13) to form a sliding channel. The sliding channel is provided with a positive electrode conductive sheet (15) that is electrically connected to the positive electrode of the battery and a negative electrode conductive sheet (16) that is electrically connected to the negative electrode on both sides. A sliding conductive element is provided in the sliding channel. The sliding conductive element includes a positive conductive plate (17) electrically connected to the positive conductive sheet (15), a positive limiting element (19) electrically connected to the positive conductive plate (17), and a positive active electrode (10) disposed on the positive limiting element (19) and capable of moving to both sides of the second housing. The sliding conductive component also includes a negative conductive plate (18) electrically connected to the negative conductive sheet (16), a negative limiting component (20) electrically connected to the negative conductive plate (18), and a negative active electrode (11) disposed on the negative limiting component (20) and capable of moving to both sides of the second housing.

8. The gas supply interruption system as described in claim 2, characterized in that, The host is equipped with a timing module, which can send a power-off signal to the power-off component according to a set time.

9. The gas supply interruption system as described in claim 2, characterized in that, The host is equipped with a gas sensor, which can control the host to send a power-off signal to the power-off component when it detects gas.

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