Gas valve with timed closing function

Abstract

A fuel gas valve with a timed closing function comprises a valve body, a valve element is installed in the valve body, the valve element extends out of the valve body through a valve rod, the valve rod is rotated to drive the valve element to rotate, fire is adjusted, a driving motor is further fixedly installed on the valve body, and the driving motor is connected with the valve rod and drives the valve rod to rotate. The driving motor is connected with a main control circuit, and a timer is arranged in the main control circuit and used for controlling the driving motor to close the gas valve after time is set. The gas valve has the advantages that the timing closing function of the gas valve is achieved through the main control circuit and the driving motor which are integrated. According to the gas stove, a user can preset the working time of the gas stove, after the set time is reached, the gas valve can be automatically closed, the situation that the user forgets to close gas due to negligence is avoided, the use safety is greatly improved, and the risk of fire disasters or gas leakage is reduced.

Description

Technical Field

[0001] The utility model relates to a gas stove accessory, in particular to a gas valve with a timing shutdown function. Background Art

[0002] As an important component of a gas stove, the main function of the gas valve is to control the gas flow rate, thereby regulating the firepower of the stove. However, existing gas stoves usually adopt manually operated gas valves, and users open, close or adjust the gas flow rate by rotating the valve stem. Although this manual gas valve can meet the basic usage requirements, it exposes some obvious deficiencies in modern life, especially the lack of a timing shutdown function.

[0003] Existing gas stoves generally do not have a timing shutdown function, which leads to the following main problems:

[0004] 1. Safety hazards: When using a gas stove, users must always pay attention to the cooking process and manually close the gas valve after completion. If users are negligent or forget to close the gas valve, it may cause continuous gas leakage or combustion, increasing the risks of fire and poisoning.

[0005] 2. Inconvenient operation: In modern life with a fast pace, users often hope to preset the working time of the gas stove, especially in scenarios where long-term cooking or heating is required. Due to the lack of a timing function in existing gas stoves, users must monitor the cooking process at any time and manually close the gas, which undoubtedly increases the complexity and inconvenience of operation.

[0006] 3. Resource waste: Due to the lack of a timing shutdown function, the gas stove may burn unnecessarily for a long time when unattended, resulting in waste of gas resources. This not only increases the usage cost but also is not conducive to environmental protection.

[0007] 4. Insufficient intelligence: With the popularization of smart home technology, more and more household devices have automation and remote control functions. However, existing gas stoves are significantly backward in terms of intelligence and automation due to the lack of a timing shutdown function, and cannot meet the needs of users for modern smart life.

[0008] In summary, due to the lack of a timing shutdown function, existing gas stoves have significant deficiencies in terms of safety, operation convenience, resource utilization efficiency, and intelligence level. This defect not only increases the user's burden of use but also poses potential safety risks, so it is necessary to make further improvements to it. Content of the Utility Model

[0009] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a gas valve with a timing shutdown function that has a simple structure, is easy to use, and can effectively improve the safety, convenience, and intelligence level of the gas stove.

[0010] The object of the present utility model is achieved in the following way: A gas valve with a timed closing function, which includes a valve body. A valve core is installed inside the valve body, and the valve core extends out of the valve body through a valve rod. By rotating the valve rod to drive the valve core to rotate, the adjustment of the firepower is realized. A driving motor is fixedly installed on the valve body, and the driving motor is connected to the valve rod and drives it to rotate; the driving motor is connected to a main control circuit, and the main control circuit is built-in with a timer for controlling the driving motor to close the gas valve after a set time.

[0011] Furthermore: The output shaft of the driving motor is a hollow shaft, and the hollow shaft is sleeved on the valve rod to drive it to rotate.

[0012] Furthermore: The hollow shaft is a hexagonal hole. Correspondingly, a hexagonal column is provided on the valve rod, and the hexagonal hole is sleeved outside the hexagonal column and is coaxially connected with it.

[0013] Furthermore: Connecting ears extend outward on both sides of the driving motor, and fixing bolts pass through the connecting ears and are connected to the valve body.

[0014] Furthermore: A driving gear is installed on the output shaft of the driving motor, and a driven gear is installed on the valve rod. The driven gear meshes with the driving gear to transmit power.

[0015] Furthermore: The driving motor is a stepping motor.

[0016] Furthermore: The main control circuit is a single-chip microcomputer.

[0017] Furthermore: A microswitch is also installed on the valve body. The trigger head of the microswitch contacts the step groove on the column surface of the valve rod. When the valve rod rotates to a set angle, the step groove triggers the microswitch to generate a control signal.

[0018] The beneficial effects of the present utility model are: 1. The structure is simple, the production cost is low, and the market competitiveness is improved.

[0019] 2. Through the integrated main control circuit and driving motor, the gas valve realizes the timed closing function. Users can preset the working time of the gas stove. After reaching the set time, the gas valve will automatically close, avoiding the situation that users forget to close the gas due to negligence, greatly improving the use safety, and reducing the risk of fire or gas leakage.

[0020] 3. Through the electrified control method, users can realize the opening, closing and firepower adjustment of the gas valve without manually adjusting the valve rod. This automated operation method greatly simplifies the operation process of users. Especially in the case of timed cooking or heating, users can freely arrange their time without having to watch constantly, greatly improving the convenience of use.

[0021] 4. The gas valve is driven by a stepper motor, which can accurately control the rotation angle of the valve stem, thereby achieving high-precision adjustment of the gas flow. This precise control method not only ensures the stability of the cooking process, but also effectively avoids gas waste, improves the utilization efficiency of gas, and reduces the usage cost.

[0022] 5. The main control circuit of the gas valve can integrate intelligent control components such as a single-chip microcomputer, supporting more complex control logic and remote control functions. This feature enables the gas valve to be linked with other smart home devices, meeting users' needs for intelligent and automated living, and enhancing the market competitiveness of the product. Description of the Drawings

[0023] Figure 1 、 2 is the usage effect diagram of the present utility model assembled with the burner head.

[0024] Figure 3 is the schematic diagram of the valve body structure in the present utility model.

[0025] Figure 4 is the structural assembly diagram of the present utility model.

[0026] Figure 5 is the structural assembly diagram of the valve body and the micro switch in the present utility model.

[0027] Figure 6 is the schematic diagram of the driving motor structure in the present utility model.

[0028] Figure 7 is the cross-sectional view of the driving motor structure in the present utility model. Detailed Embodiment

[0029] The following further describes the present utility model in detail with reference to the drawings. A gas valve with a timed shutdown function includes a valve body 1, a valve core is installed inside the valve body 1, and the valve core extends out of the valve body 1 through a valve stem 2. By rotating the valve stem 2, the valve core is driven to rotate to achieve the adjustment of the firepower. A driving motor 3 is fixedly installed on the valve body 1, and the driving motor 3 is connected to the valve stem 2 and drives it to rotate; the driving motor 3 is connected to a main control circuit 4, and the main control circuit 4 is built-in with a timer for controlling the driving motor 3 to close the gas valve after a set time.

[0030] In one embodiment: the output shaft of the driving motor 3 is a hollow shaft 31, and the hollow shaft 31 is sleeved on the valve stem 2 to drive it to rotate.

[0031] In one embodiment: the hollow shaft 31 is a hexagonal hole, and correspondingly, a hexagonal column 21 is provided on the valve stem 2, and the hexagonal hole is sleeved outside the hexagonal column 21 and is coaxially connected with it.

[0032] In one embodiment: Connecting ears 32 extend outward from both sides of the drive motor 3, and fixing bolts 33 pass through the connecting ears 32 to connect with the valve body 1.

[0033] In one embodiment: A driving gear is installed on the output shaft of the drive motor 3, and a driven gear is installed on the valve stem 2. The driven gear meshes with the driving gear to transmit power.

[0034] In one embodiment: The drive motor 3 is a stepper motor.

[0035] In one embodiment: The main control circuit 4 is a single-chip microcomputer.

[0036] In one embodiment: A microswitch 5 is further installed on the valve body 1. The trigger head 51 of the microswitch 5 contacts the step groove 22 on the cylindrical surface of the valve stem 2. When the valve stem 2 rotates to a set angle, the step groove 22 triggers the microswitch 5 to generate a control signal.

[0037] Working principle: The gas valve includes a valve body 1, and a valve core for controlling the gas flow is installed inside the valve body. The valve core extends to the outside of the valve body through the connected valve stem 2. The traditional manual adjustment method is to adjust the gas flow by rotating the valve stem. However, in the present utility model, a drive motor 3 is fixedly installed on the valve body, and the drive motor drives the valve stem 2 to rotate, thereby realizing the automatic adjustment of the gas flow to control the firepower size or directly close the valve.

[0038] Among them, the output shaft of the drive motor 3 is connected to the valve stem 2. When the main control circuit 4 issues an instruction, the drive motor starts to rotate, drives the valve stem to rotate through its output shaft, thereby adjusting the position of the valve core and controlling the gas flow. The drive motor can be a stepper motor, so that the rotation angle of the valve stem can be accurately controlled, and the gas flow adjustment is more accurate.

[0039] The core of the present utility model lies in the timing shutdown function. The main control circuit 4 integrates a timer and control logic. The user can set the timing time to make the gas valve automatically close after a predetermined time. When the timing time arrives, the main control circuit will control the drive motor to rotate in the reverse direction, rotate the valve stem to the closed position, thereby closing the gas flow. This function effectively prevents potential safety hazards caused by human negligence in forgetting to close the gas valve.

[0040] Among them, the output shaft of the drive motor is designed as a hollow shaft 31 and is connected to the valve stem 2 through gear meshing or a hexagonal column to achieve stable power transmission. In addition, a microswitch 5 is installed on the valve body. When the valve stem rotates to the set closed position, the microswitch will be triggered and send a feedback signal to the main control circuit to ensure that the gas valve has been successfully closed. This design increases the safety and reliability of the system.

[0041] Furthermore, through the combination of a stepper motor and a main control circuit, the gas valve achieves intelligent control. It can not only precisely adjust the firepower but also automatically close the gas valve through the timing function. This intelligent control method greatly improves the energy utilization efficiency, avoids the waste of gas resources, and reduces the usage cost. In addition, this intelligent design can also be compatible with the smart home system to achieve remote control and monitoring, further enhancing the user experience and safety.

[0042] From the above working principle, it can be seen that the gas valve with a timing shutdown function of the present utility model has significant improvements in terms of operation safety, convenience, control precision, and intelligence. The timing shutdown function effectively prevents the safety hazard of users forgetting to close the gas valve; the precise cooperation between the stepper motor and the main control circuit ensures high precision in gas flow regulation; the intelligent control method not only improves the convenience of user operation but also enhances the utilization efficiency of gas, meeting the development trend of modern smart homes. Therefore, it can be widely promoted and used.

[0043] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A gas valve with a timed closing function, comprising a valve body (1), a valve core installed inside the valve body (1), the valve core extending out of the valve body (1) through a valve stem (2), and the valve core is driven to rotate by rotating the valve stem (2) to achieve adjustment of firepower, characterized in that: A drive motor (3) is also fixedly mounted on the valve body (1), and the drive motor (3) is connected to the valve stem (2) and drives the valve stem to rotate; the drive motor (3) is connected to a main control circuit (4), and the main control circuit (4) has a built-in timer for controlling the drive motor (3) to close the gas valve after a set time.

2. A gas valve with a timed closing function according to claim 1, characterized in that: The output shaft of the driving motor (3) is a hollow shaft (31), and the hollow shaft (31) is sleeved on the valve stem (2) to drive the valve stem to rotate.

3. A gas valve with a timed closing function according to claim 2, characterized in that: The hollow shaft (31) is a hexagonal hole. Correspondingly, a hexagonal column (21) is provided on the valve stem (2). The hexagonal hole is sleeved outside the hexagonal column (21) and is coaxially connected thereto.

4. A gas valve with a timed closing function according to claim 1, characterized in that: The drive motor (3) has connecting ears (32) extending outwardly on both sides, and fixing bolts (33) pass through the connecting ears (32) to be connected to the valve body (1).

5. A gas valve with a timed closing function according to any one of claims 1 to 4, characterized in that: A driving gear is mounted on the output shaft of the driving motor (3), and a driven gear is mounted on the valve stem (2), and the driven gear meshes with the driving gear to transmit power.

6. A gas valve with a timed closing function according to any one of claims 1 to 4, characterized in that: The driving motor (3) is a stepping motor.

7. A gas valve with a timed closing function according to claim 1, characterized in that: The main control circuit (4) is a single chip microcomputer.

8. The gas valve with timed closing function according to claim 1, characterized in that: A micro switch (5) is also mounted on the valve body (1). A trigger head (51) of the micro switch (5) contacts a step groove (22) on the cylindrical surface of the valve stem (2). When the valve stem (2) rotates to a set angle, the step groove (22) triggers the micro switch (5) to generate a control signal.

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