A gas safety valve control system

Abstract

The utility model discloses a kind of gas safety valve control systems, including gas safety valve, ventilation signal collector, multiple human body inductors and control circuit board;Gas safety valve is set on gas pipeline, ventilation signal collector is set on gas safety valve, and is connected with the ventilation equipment outside, human body inductor is set in the use space of gas equipment, control circuit board is set on gas safety valve, and control circuit board is electrically connected with ventilation signal collector and human body inductor;Through the linkage of ventilation signal collector and control circuit board, forcibly realize that "ventilation equipment can only be opened to open safety valve", the risk of hypoxia, carbon monoxide poisoning caused by still being able to use gas in background technology in forget to open ventilation is solved from source;Meanwhile superimposed human body inductor, form "ventilation opening+in the double safety logic of sensing person", avoid the problem such as leakage, abnormal combustion caused by gas accidental supply under no one state.

Description

Technical Field

[0001] This utility model relates to the field of gas equipment technology, specifically to a gas safety valve control system. Background Technology

[0002] Gas appliances such as gas stoves, gas water heaters, and gas boilers are widely used in home kitchens, commercial catering, and industrial production. Their operation depends on the full mixing and combustion of gas and air, and they have strict requirements for environmental ventilation conditions.

[0003] However, in actual use, due to users' weak safety awareness, negligent operating habits (such as focusing on cooking, forgetting to operate when temporarily leaving), or insufficient understanding of the operating principles of the equipment, it is common to forget to turn on ventilation equipment (such as range hoods, exhaust fans, and fresh air systems), which can easily lead to safety accidents. For example, the invention patent with publication number CN115682045A discloses a human body induction protection device for a gas stove, including a controller body, a human body sensor, and an electric valve, which determines the opening and closing of the electric valve through the human body sensor. However, the above patent only senses human activity through the human body sensor and does not judge the usage environment. When gas leaks, although the valve can be closed to prevent leakage, the leaked gas is not discharged in time, and there is still a safety hazard.

[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a gas safety valve control system, which aims to solve the problem that the ventilation equipment of the existing gas stove often fails to be turned on or started in time due to human error, thus causing safety accidents.

[0006] The technical solution adopted by this utility model to solve the technical problem is as follows: A gas safety valve control system includes: Gas safety valve; A ventilation signal acquisition device is installed on the gas safety valve and connected to external ventilation equipment to acquire the start and stop signals of the ventilation equipment; Human body sensors are installed within the operating space of the gas equipment; A control circuit board is mounted on the gas safety valve; the control circuit board is electrically connected to the ventilation signal collector and the human body sensor to receive signals from the ventilation signal collector and the human body sensor, and to send start / stop signals to the gas safety valve.

[0007] Furthermore, it also includes: A wind sensor is installed at the air inlet of the ventilation equipment to detect changes in wind force; the wind sensor is electrically connected to the control circuit board.

[0008] Furthermore, it also includes: A control panel is mounted on the gas safety valve; a control circuit board is located inside the control panel; a timer is installed inside the control panel, and the timer is electrically connected to the control panel and the control circuit board.

[0009] Furthermore, the control panel is equipped with indicator lights.

[0010] Furthermore, the control circuit board is equipped with a wireless connection module.

[0011] Furthermore, pressure sensors are installed at both ends of the gas safety valve, and a temperature sensor is installed inside the gas safety valve.

[0012] Furthermore, an alarm is installed inside the control panel, and the alarm is connected to the control circuit board.

[0013] Furthermore, it also includes: An appliance ignition signal acquisition device is installed on the gas safety valve and connected to the control circuit board.

[0014] Furthermore, the gas safety valve is an electrically operated valve.

[0015] Furthermore, the human body sensor can be any one of an infrared sensor, a radar sensor, a capacitive sensor, and a pyroelectric point sensor.

[0016] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the linkage between the ventilation signal collector and the control circuit board forces the "safety valve to be opened only when the ventilation equipment is turned on," thus solving the risk of oxygen deficiency and carbon monoxide poisoning caused by using gas without turning on the ventilation equipment, as in the prior art. At the same time, the addition of a human body sensor forms a dual safety logic of "ventilation on + human detection," avoiding problems such as leakage and abnormal combustion caused by accidental gas supply when no one is present. This transforms gas supply safety from relying on subjective user operation to automatic forced control by the equipment, significantly reducing the probability of accidents caused by human negligence and providing more reliable safety guarantees for the use of gas equipment in various scenarios. Attached Figure Description

[0017] Figure 1 This is a system block diagram of the gas safety valve control system of this utility model.

[0018] Figure 2This is a schematic diagram of the structure of the gas safety valve and control panel of this utility model.

[0019] The numbers in the diagram represent: 1. Gas safety valve; 2. Ventilation signal collector; 3. Human body sensor; 4. Control circuit board; 5. Wind force sensor; 6. Control panel; 7. Gas appliance ignition signal collector; 8. Pressure sensor; 9. Temperature sensor; 10. Timer. Detailed Implementation

[0020] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In view of the shortcomings of the prior art, this embodiment provides a gas safety valve control system, which can be referred to as follows: As attached Figure 1 and attached Figure 2As shown, a gas safety valve 1 control system includes a gas safety valve 1, a ventilation signal collector 2, multiple human body sensors 3, and a control circuit board 4. The gas safety valve 1 is installed on the gas pipeline and controls the connection and disconnection of the gas pipeline. The gas safety valve 1 is an electrically operated valve. The ventilation signal collector 2 is installed on the gas safety valve 1 and connected to external ventilation equipment to collect the opening signal of the ventilation equipment. The human body sensors 3 are installed in the space where the gas equipment is used, such as in the kitchen or bathroom. The gas safety valve 1 is only allowed to open when someone is detected in the kitchen or bathroom. The human body sensor 3 can be used as a necessary or non-necessary condition. The control circuit board 4 is installed on the gas safety valve 1 and is electrically connected to the ventilation signal collector 2 and the human body sensors 3. It is used to receive signals from the ventilation signal collector 2 and the human body sensors 3 and send start / stop signals to the gas safety valve 1. After receiving the signals, the gas safety valve 1 realizes the function of opening and closing the gas pipeline.

[0024] Among them, the gas safety valve 1 refers to a valve structure using an electric drive method, specifically a solenoid valve or an electric ball valve. It integrates a signal receiving module and an actuator, capable of responding to signals from the control circuit board 4 within milliseconds, ensuring rapid on / off of the gas pipeline. Furthermore, the valve maintains good sealing performance when closed, effectively preventing gas leakage. The ventilation signal collector 2 is a detection component used to collect the operating status of ventilation equipment. It can be a current sensor, voltage sensor, or communication module. If connected to the ventilation equipment via wires, it can determine whether the equipment is open by detecting its operating current or voltage. If using a wireless connection, it can detect the equipment by receiving Bluetooth or Wi-Fi status signals. Its core function is to provide the system with real-time status data of the ventilation equipment. The human body sensor 3 is a sensing device used to detect the presence of people in the space. It can be an infrared human body sensor 3, a microwave human body sensor 3, or an ultrasonic human body sensor 3. The infrared human body sensor 3 identifies people by detecting infrared rays emitted by the human body and is suitable for static personnel detection. The microwave human body sensor 3 determines personnel movement by emitting microwaves and receiving reflected signals and is suitable for dynamic personnel detection. The appropriate sensor type can be selected based on the environmental characteristics of the space. The control circuit board 4 refers to a circuit module that integrates signal reception, signal processing, and control signal output functions. Specifically, it includes a microcontroller, signal amplification circuit, filtering circuit, and output drive circuit. It has a pre-set control logic program, which is existing technology. It can be set to "open the safety valve only when the ventilation equipment is turned on" or "open the safety valve only when the ventilation equipment is turned on and the presence of personnel is detected" according to actual needs, and has strong flexibility and adaptability.

[0025] Specifically, when a user needs to use the gas appliance, the system first enters the signal detection phase. The control circuit board 4 receives signals from the ventilation signal collector 2 in real time. If the ventilation signal collector 2 detects that the ventilation appliance is turned on (such as a range hood being powered on), it sends a signal to the control circuit board 4. At the same time, each human body sensor 3 continuously monitors the personnel in the usage space. If someone is detected, it transmits a signal to the control circuit board 4. The control circuit board 4 only starts when it receives signals from both the ventilation signal collector 2 and the human body sensor 3. After receiving the signals from both, the control circuit board 4 immediately sends an "open" signal to the gas safety valve 1. Upon receiving the signal, the gas safety valve 1 drives the valve core to open, connecting the gas pipeline, and the user can use the gas appliance normally. If the control circuit board 4 only receives one type of signal (such as ventilation only being on but no one being present, or only someone being present but ventilation not being on), it will not send an "open" signal to the gas safety valve 1, and the valve will remain closed. When the control circuit board 4 receives a signal from the ventilation signal collector 2 or the human body sensor 3, it can start. After receiving the signal from the ventilation signal collector 2, the control circuit board 4 does not need to wait for the signal from the human body sensor 3 and directly sends an "open" signal to the gas safety valve 1 to realize gas supply.

[0026] Compared to existing technologies, traditional gas supply relies solely on manual valves or single leak detection valves in gas usage scenarios. This fails to correlate with the operational status of ventilation equipment or incorporate intelligent control based on personnel presence, leaving users at risk of gas usage even when ventilation is forgotten or unattended. This solution, through the coordinated operation of a gas safety valve 1, a ventilation signal collector 2, a human body sensor 3, and a control circuit board 4, deeply integrates gas supply control with ventilation status and personnel availability, breaking away from the limitations of traditional gas control methods. Specifically, the ventilation signal collector 2 prevents the use of gas despite lack of ventilation, while the flexible adaptation of the human body sensor 3 further covers the potential for accidental gas supply in unattended situations. Compared to traditional control methods, this solution offers more comprehensive safety protection. Meanwhile, the control circuit board 4 supports switching between two control modes, which can be flexibly adjusted according to the usage needs of different scenarios such as home, business, and industry, avoiding the limitations of traditional fixed control logic that is difficult to adapt to multiple scenarios; and the components are highly integrated, with the control circuit board 4 on the gas safety valve 1 and the ventilation signal collector 2 directly set on the safety valve, simplifying the system installation process and reducing the later maintenance cost.

[0027] Through the above technical solutions, this application realizes intelligent and safe control of gas supply. On the one hand, by linking the ventilation signal collector 2 with the gas safety valve 1, it ensures that gas is supplied only in a normally ventilated environment, fundamentally eliminating the risk of oxygen deficiency and carbon monoxide poisoning caused by lack of ventilation. On the other hand, the addition of the human body sensor 3 can realize dual verification of "personnel presence" according to the needs of the scenario, avoiding safety accidents caused by gas leakage in an unattended state. At the same time, the control circuit board 4 can adapt to the usage needs of different scenarios according to the preset control mode.

[0028] As attached Figure 1 As shown, in this embodiment, the gas safety valve 1 control system also includes a wind sensor 5. The wind sensor 5 is installed at the air inlet of the ventilation equipment to detect changes in wind force at the air inlet of the ventilation equipment, and the wind sensor 5 is electrically connected to the control circuit board 4.

[0029] Specifically, it can be installed inside or on the edge of the air inlet grille using clips or screws, ensuring that the sensor probe can directly contact the airflow drawn in during ventilation operation, while avoiding detection deviations caused by obstruction from the equipment casing or interference from external debris. Its core function is to detect real-time changes in wind force at the air inlet of the ventilation equipment, accurately capturing the actual ventilation intensity and airflow stability, rather than relying solely on the equipment's power signal to determine its operating status. Furthermore, the wind sensor 5 is electrically connected to the control circuit board 4 via shielded wires, converting the collected wind force signal into a stable electrical signal that is transmitted to the control circuit board 4, providing a more accurate basis for the system control logic regarding ventilation status.

[0030] During system operation, when the ventilation signal collector 2 detects that the ventilation equipment is powered on and sends a signal to the control circuit board 4, the wind sensor 5 simultaneously starts to detect the wind force at the air inlet and sends a signal to the control circuit board 4 (the control circuit board 4 also contains a comparator and a judge, which are existing technologies and will not be described in detail here). The control circuit board 4 judges whether the wind force data reaches the preset threshold. If the detected wind force value is lower than the threshold (such as insufficient air intake due to a clogged filter of the ventilation equipment, equipment failure with only power on but no fan rotating, or the air inlet being blocked by debris), no signal is sent to the gas safety valve 1.

[0031] While the system is running, the wind sensor 5 continuously monitors wind changes in real time. If the wind speed suddenly drops below the threshold due to factors such as clogged ventilation equipment filters or fan malfunctions, the control circuit board 4 will quickly send a "close" signal to the gas safety valve 1 to cut off the gas supply, regardless of whether personnel are detected present. This design overcomes the shortcomings of relying solely on the signal from the ventilation signal collector 2 to determine the ventilation status, avoiding safety hazards caused by system misjudgment when "ventilation equipment is powered on but not actually ventilating" (such as idling or obstructed airflow), thereby further improving the system's safety and reliability.

[0032] Compared to the solution without wind sensor 5, the addition of wind sensor 5 makes the system's judgment of ventilation status more accurate and more in line with actual usage scenarios: it avoids the design that relies solely on the power signal of ventilation equipment, which cannot identify the situation where the equipment is "powered on but malfunctioning". Wind sensor 5 can truly reflect the ventilation effect by directly detecting the airflow intensity, fundamentally eliminating the risk of "false ventilation".

[0033] As attached Figure 1 As shown, in this embodiment, the gas safety valve 1 control system also includes a control panel 6. The control panel 6 is mounted on the gas safety valve 1, and the control circuit board 4 can be mounted inside the control panel 6. The control panel 6 is used to display various parameters, and the control panel 6 is also equipped with buttons that are connected to the control circuit board 4. A timer 10 is mounted inside the control panel 6 and is electrically connected to the control circuit board 4. The timing function of the timer 10 can be displayed on the control panel 6.

[0034] The control panel 6 can be connected wirelessly or via wired connection. The wireless connection uses a range greater than 20 meters and can penetrate two solid walls, such as Wi-Fi, Bluetooth, StarFlash, or LoRa, effectively ensuring signal transmission stability and ease of control, allowing normal operation even in complex home environments. The gas safety valve 1 uses 24V DC (meeting explosion-proof installation power requirements). The control panel 6 uses an 86-type panel and is powered by built-in AAA batteries, facilitating user installation and use without additional wiring, reducing installation costs and complexity. The wireless switch panel has a non-locking design; one press triggers one operation, simple and convenient, conforming to users' daily operating habits. A high-definition screen is embedded in control panel 6 to display various key parameters during system operation, including equipment status parameters and system warning parameters. Equipment status parameters may include the "open / closed" status of gas safety valve 1; system warning parameters may include situations such as ineffective ventilation, sensor malfunction, and abnormal gas pressure. Control panel 6 includes a valve opening button, a reset button, and function keys.

[0035] As attached Figure 2As shown, a control panel 6 can be installed on the top of the gas safety valve 1. The control panel 6 is cuboid in shape and can integrate electronic control structures, such as motors and reducers, to control the automatic start and stop of the gas safety valve 1. The ventilation signal collector 2 and the control circuit board 4 can both be installed inside the control panel 6.

[0036] The gas safety valve 1 has connectors at both ends, which can be used as shown in the attached figure. Figure 2 As shown, it can also be a threaded joint or other joints.

[0037] In this embodiment, the control panel 6 is equipped with an indicator light. The indicator light turns green when the button is pressed and turns off when no operation is performed, so that users can intuitively understand the switch status and avoid accidental operation.

[0038] In this embodiment, the control circuit board 4 is equipped with a wireless connection module to facilitate connection with an external mobile terminal, so that the status of the gas safety valve 1 can be viewed remotely.

[0039] In this embodiment, pressure sensors 8 are respectively installed at the front and rear ends of the gas safety valve 1, and a temperature sensor 9 is installed inside the gas safety valve 1 for detecting the pressure and temperature of the pipelines before and after the valve.

[0040] The pressure sensor 8 and temperature sensor 9 are both electrically connected to the control circuit board 4. The control circuit board 4 is used to receive signals, process the signals and send them to the control panel 6 for display.

[0041] As attached Figure 1 As shown, in this embodiment, the gas safety valve 1 control system also includes a gas appliance ignition signal collector 7. The gas appliance ignition signal collector 7 is installed on the gas safety valve 1 and connected to the control circuit board 4, and is used to collect the gas appliance ignition signal.

[0042] During use, the signals from the ventilation signal collector 2, the human body sensor 3, and the appliance ignition signal collector 7 can be used individually as necessary conditions to switch the gas safety valve 1 on and off. Alternatively, the combination of the ventilation signal collector 2 and the human body sensor 3 or the appliance ignition signal collector 7 can be used to switch the gas safety valve 1 on and off.

[0043] In this embodiment, the human body sensor 3 can be any one of an infrared sensor, a radar sensor, a capacitive sensor, and a pyroelectric point sensor.

[0044] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the solutions disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.

Claims

1. A gas safety valve control system, characterized in that, include: Gas safety valve; A ventilation signal acquisition device is installed on the gas safety valve and connected to external ventilation equipment to acquire the start and stop signals of the ventilation equipment; Human body sensors are installed within the operating space of the gas equipment; A control circuit board is mounted on the gas safety valve; the control circuit board is electrically connected to the ventilation signal collector and the human body sensor to receive signals from the ventilation signal collector and the human body sensor, and to send start / stop signals to the gas safety valve.

2. The gas safety valve control system according to claim 1, characterized in that, It also includes: A wind sensor is installed at the air inlet of the ventilation equipment to detect changes in wind force; the wind sensor is electrically connected to the control circuit board.

3. A gas safety valve control system according to claim 1, characterized in that, It also includes: A control panel is located on the gas safety valve; a control circuit board is located inside the control panel; a timer is installed inside the control panel, and the timer is electrically connected to the control circuit board.

4. A gas safety valve control system according to claim 3, characterized in that, The control panel is equipped with indicator lights.

5. A gas safety valve control system according to claim 1, characterized in that, The control circuit board is equipped with a wireless connection module.

6. A gas safety valve control system according to claim 3, characterized in that, An alarm is installed inside the control panel, and the alarm is connected to the control circuit board.

7. A gas safety valve control system according to claim 1, characterized in that, Pressure sensors are installed at both ends of the gas safety valve, and a temperature sensor is installed inside the gas safety valve.

8. A gas safety valve control system according to claim 1, characterized in that, It also includes: An appliance ignition signal acquisition device is installed on the gas safety valve and connected to the control circuit board.

9. A gas safety valve control system according to claim 1, characterized in that, The gas safety valve is an electrically operated valve.

10. A gas safety valve control system according to claim 1, characterized in that, The human body sensor can be any one of an infrared sensor, a radar sensor, a capacitive sensor, and a pyroelectric point sensor.

Images