A stepper motor automatic switch valve for gas cooker

Abstract

The present invention relates to the technical field of gas cookers, and in particular to a stepper motor automatic switch valve for gas cookers, which comprises a stepper motor automatic switch valve body, and the stepper motor automatic switch valve body comprises a stepper motor, a regulating valve body, a gas regulating combination, a gas distribution cover plate, a connector, a solenoid valve, an outer ring air outlet and an inner ring air outlet; a stepper motor is arranged on the upper right side of the regulating valve body; a gas regulating combination is arranged in the cavity of the regulating valve body; the left and right ends of the gas regulating combination are respectively connected to the stepper motor and the gas distribution cover plate; the left side of the gas distribution cover plate is connected to the connector; the left and right sides of the bottom surface of the regulating valve body are respectively provided with an inner ring air outlet and an outer ring air outlet; it adopts an original stepper motor gas valve, and adds a solenoid valve to each air outlet channel, and realizes different combustion states by opening and closing the solenoid valve; it is easy to use, simple to operate, and greatly improves the use efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of gas cookers, and in particular to a stepping motor automatic switch valve for a gas cooker. Background Art

[0002] Gas stoves refer to kitchen appliances that use gas fuels such as liquefied petroleum gas, artificial gas, and natural gas for direct heating. In terms of gas source, gas stoves are mainly divided into liquefied gas stoves, coal gas stoves, and natural gas stoves. In terms of stove burners, they are divided into single burners, double burners, and multi-burner stoves.

[0003] At present, stepper motors have been used in gas stove products on the market, but they have not yet gotten rid of the influence of the plug-type gas valve. The stepper motor is simply connected to the original gas valve, and the firepower is adjusted entirely by rotating the valve core of the original switch valve, and the adjustment range is narrow. Summary of the invention

[0004] The purpose of the present invention is to provide a stepper motor automatic switch valve for a gas cooker in view of the defects and shortcomings of the prior art. On the basis of the original stepper motor gas valve, a solenoid valve is added to each gas outlet channel, and different combustion states are realized by opening and closing the solenoid valve, thereby increasing the firepower adjustment range; the valve is easy to use and simple to operate, and greatly improves the use efficiency.

[0005] The stepper motor automatic switch valve for gas cookers of the present invention comprises a stepper motor automatic switch valve body, the stepper motor automatic switch valve body comprises a stepper motor, a regulating valve body, a gas regulating assembly, a gas distribution cover plate, a connector, a solenoid valve, an outer ring gas outlet and an inner ring gas outlet;

[0006] A stepper motor is arranged on the upper right side of the regulating valve body; an air regulating assembly is arranged in the cavity of the regulating valve body; the left and right ends of the air regulating assembly are respectively connected to the stepper motor and the air distribution cover plate; the left side of the air distribution cover plate is connected to the connector; the left and right sides of the bottom surface of the regulating valve body are respectively provided with an inner ring air outlet and an outer ring air outlet; the air distribution cover plate is provided with a third air outlet, the cross section of the third air outlet is circular, and the third air outlet, the inner ring air outlet and the outer ring air outlet form a three-air outlet structure; the upper left side and the lower right side of the regulating valve body are respectively provided with a solenoid valve A and a solenoid valve B;

[0007] A measuring gear is arranged on the shaft of the stepper motor, a resistance sensor is installed on the measuring gear, and the resistance sensor is connected to the measuring circuit; a fan-shaped regulating plate component is installed at the inner ring air outlet and the outer ring air outlet; a partition is arranged in the middle of the regulating valve body to divide the regulating valve into two air outlet channels.

[0008] Furthermore, the solenoid valve A is installed on the gas passage before the inner ring gas outlet in the regulating valve body;

[0009] Furthermore, the solenoid valve B is installed on the gas passage before the outer ring gas outlet in the valve body of the regulating valve.

[0010] Furthermore, the servo motor is a 130 series optical axis DC refresh-free motor produced by Guangzhou Demark Motor Co., Ltd.

[0011] Furthermore, the fan-shaped adjustment plate component includes a servo motor arranged at the top and bottom of the inner ring air outlet or the outer ring air outlet, and a fan-shaped plate is installed on the shaft of the servo motor, and the radius of the fan-shaped plate is between the radius distance and the diameter distance of the inner ring air outlet or the outer ring air outlet.

[0012] After adopting the above structure, the beneficial effects of the present invention are as follows: the stepper motor automatic switch valve for a gas cooker described in the present invention is based on the original stepper motor gas valve, and an electromagnetic valve is added to each gas outlet channel. Different combustion states are achieved by opening and closing the electromagnetic valve, thereby increasing the firepower adjustment range; it is easy to use, simple to operate, and greatly improves the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application, but do not constitute an improper limitation of the present invention. In the drawings:

[0014] Figure 1 It is a front view structural schematic diagram of the present invention.

[0015] Figure 2 It is a schematic diagram of the structure of the present invention when viewed from above.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the present invention.

[0017] Figure 4 for Figure 2 A-A sectional view;

[0018] Figure 5 This is a schematic diagram of the structure in which the resistance sensor in the present invention is installed on the measuring gear;

[0019] Figure 6 It is a structural schematic diagram of the fan-shaped adjustment plate component in the present invention.

[0020] Description of reference numerals:

[0021] Stepper motor-1, regulating valve body-2, air regulating assembly-3, air distribution cover-4, connector-5, solenoid valve A-6, inner ring air outlet-7, outer ring air outlet-8, solenoid valve B-9, measuring circuit-10, resistance sensor-11, measuring gear-12. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, wherein the illustrative embodiments and descriptions are only used to explain the present invention but are not intended to limit the present invention.

[0023] like Figure 1-Figure 3 As shown, a stepper motor automatic switch valve for a gas cooker described in this specific embodiment includes a stepper motor automatic switch valve body, and the stepper motor automatic switch valve body includes a stepper motor 1, a regulating valve body 2, a gas regulating assembly 3, a gas distribution cover plate 4, a connector 5, a solenoid valve A6, an outer ring gas outlet 7 and an inner ring gas outlet 8;

[0024] A stepper motor 1 is arranged on the upper right side of the regulating valve body 2; an air regulating assembly 3 is arranged in the cavity of the regulating valve body 2; the left and right ends of the air regulating assembly 3 are respectively connected to the stepper motor 1 and the air distribution cover plate 4; the left side of the air distribution cover plate 4 is connected to the connector 5; the left and right sides of the bottom surface of the regulating valve body 2 are respectively provided with an inner ring air outlet 7 and an outer ring air outlet 8; the air distribution cover plate is provided with a third air outlet, the cross section of the third air outlet is circular, and the third air outlet, the inner ring air outlet 7 and the outer ring air outlet 8 form a three-air outlet structure; the upper left side and the lower right side of the regulating valve body 2 are respectively provided with a solenoid valve A6 and a solenoid valve B9;

[0025] A measuring gear 12 is provided on the shaft of the stepper motor 1, and a resistance sensor 11 is installed on the measuring gear 12, and the resistance sensor 11 is connected to the measuring circuit 10; the inner ring air outlet 7 and the outer ring air outlet 8 are installed with fan-shaped adjustment plate components; a partition is provided in the middle of the regulating valve body 2 to divide it into two air outlet channels.

[0026] As a preferred embodiment of the present invention, the solenoid valve A6 is installed on the gas passage before the inner ring gas outlet 7 in the regulating valve body 2.

[0027] As a preferred embodiment of the present invention, the solenoid valve B9 is installed on the gas passage before the outer ring gas outlet 8 in the regulating valve body 2.

[0028] As a preferred embodiment of the present invention, the servo motor 13 is a 130 series optical axis DC non-refreshing motor produced by Guangzhou Demark Motor Co., Ltd.

[0029] As a preferred embodiment of the present invention, the fan-shaped adjustment plate component includes a servo motor 13 arranged at the top and bottom of the inner ring air outlet 7 or the outer ring air outlet 8, and a fan-shaped plate is installed on the shaft of the servo motor 13, and the radius of the fan-shaped plate is between the radius distance and the diameter distance of the inner ring air outlet 7 or the outer ring air outlet 8.

[0030] The design works as follows:

[0031] In the present design, a stepper motor 1 is arranged on the regulating valve body 2, a gas regulating assembly 3 is arranged in the cavity of the regulating valve body 2, the gas regulating assembly 3 cooperates with the stepper motor 1 and the gas distribution cover plate 4 respectively, and a connector 5 is arranged at the cooperation place of the gas regulating assembly 3 and the gas distribution cover plate 4; an inner ring gas outlet 7 and an outer ring gas outlet 8 are arranged on the front of the regulating valve body 2, and solenoid valves A6 are respectively arranged on the gas channel before the inner ring gas outlet 7 and the outer ring gas outlet 8, and the gas supply of the corresponding gas channel can be opened or cut off by opening and closing the solenoid valve A6, so that three different combustion states of double ring fire, single inner ring fire and single outer ring fire can be obtained as required.

[0032] like Figure 4 As shown, the arrows in the figure indicate the direction of gas flow. When this design is in use, the stepper motor automatic switch valve body is connected to the stove pipe, and the gas enters the cavity through the air inlet of the regulating valve body 2. The mating surfaces of the gas regulating assembly 3 and the gas distribution cover plate 4 are respectively provided with an outer ring air outlet and an inner ring air outlet. The gas regulating assembly 3 is driven to rotate by the stepper motor 1 to adjust the air outlet area of ​​the outer ring air outlet and the inner ring air outlet to limit the air outlet volume. The size of the air outlet area is set according to the rotation angle of the stepper motor 1, so as to obtain a larger firepower adjustment range. The gas passes through the outer ring air outlet and the inner ring air outlet to the outer ring air outlet 8 and the inner ring air outlet 7 respectively, thereby forming an outer ring gas channel and an inner ring gas channel. Therefore, the solenoid valve A6 is installed on the inner ring gas channel before the inner ring air outlet 7 in the regulating valve body 2; the solenoid valve B9 is installed on the outer ring gas channel before the outer ring air outlet 8 in the regulating valve body 2.

[0033] The regulated gas enters the connector 5 through the gas distribution cover plate 4, and is transported to the inner ring gas outlet 7 and the outer ring gas outlet 8 through the inner ring gas channel and the outer ring gas channel of the connector 5. Solenoid valves A6 are respectively provided on the gas channels before the inner ring gas outlet 7 and the outer ring gas outlet 8. The gas supply of the corresponding gas channel can be opened and cut off by opening and closing the solenoid valve A6, so that three different combustion states of double ring fire, single inner ring fire and single outer ring fire can be obtained as needed. The gas flows out from the inner ring gas outlet 7 and the outer ring gas outlet 8, and is transported to the burner through the gas stove injection system, and ignites and burns on the burner.

[0034] In the present design, a partition is provided in the middle of the regulating valve body 2, dividing it into two air outlet channels; the air dividing cover plate is provided with a third air outlet, the cross-section of the third air outlet is circular, and the third air outlet, the inner ring air outlet 7 and the outer ring air outlet 8 form a three-air outlet structure; two air outlet channels are provided inside, which can meet the use of a two-ring fire burner, and the process cover plate can be removed and replaced with a component with an air outlet, so that it can be transformed into a valve body with three outlets, which can meet the use of a three-ring fire burner.

[0035] like Figure 6As shown, in this design, the inner ring air outlet 7 and the outer ring air outlet 8 are installed with fan-shaped adjustment plate components; the fan-shaped adjustment plate components include servo motors 13 arranged at the top and bottom of the inner ring air outlet 7 or the outer ring air outlet 8, and a fan-shaped plate is installed on the shaft of the servo motor 13, and the radius of the fan-shaped plate is between the radius distance and the diameter distance of the inner ring air outlet 7 or the outer ring air outlet 8. In terms of gas control, two fan-shaped structures are used to control the size of the gas flow, which is different from the circular hole structure of the ordinary plug valve. When adjusting the firepower, the inner and outer ring firepower of the burner can be adjusted simultaneously, and the adjustment is more linear.

[0036] like Figure 5 As shown, in this design, a measuring gear 12 is provided on the shaft of the stepper motor 1, and a resistance sensor 11 is installed on the measuring gear 12, and the resistance sensor 11 is connected to the measuring circuit 10. A resistance sensor is added to the stepper motor, and the stepper motor drives the resistance sensor gear to rotate when working. The resistance sensor feeds back the position of the motor rotation in the form of a resistance signal, which can more accurately control the output angle of the stepper motor and avoid common problems such as step skipping and step loss when the stepper motor is working.

[0037] What this design wants to illustrate is that the measurement circuit that matches the resistance sensor can be easily implemented by technicians in this industry and belongs to the existing technology. Therefore, the structure of the measurement circuit is not elaborated in detail in this design.

[0038] After adopting the above structure, the beneficial effects of the present invention are as follows: the stepper motor automatic switch valve for a gas cooker described in the present invention is based on the original stepper motor gas valve, and an electromagnetic valve is added to each gas outlet channel. Different combustion states are achieved by opening and closing the electromagnetic valve, thereby increasing the firepower adjustment range; it is easy to use, simple to operate, and greatly improves the use efficiency.

[0039] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A stepper motor automatic switch valve for a gas cooker, characterized in that: It includes a stepper motor automatic switch valve body, which includes a stepper motor, a regulating valve body, an air regulating assembly, an air distribution cover plate, a connector, a solenoid valve, an outer ring air outlet and an inner ring air outlet; a stepper motor is arranged on the upper right side of the regulating valve body; an air regulating assembly is arranged in the cavity of the regulating valve body; the left and right ends of the air regulating assembly are respectively connected to the stepper motor and the air distribution cover plate; the left side of the air distribution cover plate is connected to the connector; the left and right sides of the bottom surface of the regulating valve body are respectively provided with an inner ring air outlet and an outer ring air outlet; The gas distribution cover plate is provided with a third air outlet, the cross section of which is circular, and the third air outlet forms a three-air outlet structure with the inner ring air outlet and the outer ring air outlet; the upper left side surface and the lower right side of the regulating valve body are respectively provided with a solenoid valve A and a solenoid valve B; the shaft of the stepping motor is provided with a measuring gear, and a resistance sensor is installed on the measuring gear, and the resistance sensor is connected to the measuring circuit; the inner ring air outlet and the outer ring air outlet are installed with fan-shaped regulating plate components; the middle part of the regulating valve body is provided with a partition plate, which is divided into two air outlet channels; The fan-shaped adjustment plate component includes a servo motor arranged at the top and bottom of the inner ring air outlet or the outer ring air outlet, and a fan-shaped plate is installed on the shaft of the servo motor, and the radius of the fan-shaped plate is between the radius distance and the diameter distance of the inner ring air outlet or the outer ring air outlet; The solenoid valve A is installed on the gas passage before the inner ring gas outlet in the regulating valve body.

2. The stepper motor automatic switch valve for a gas cooker according to claim 1, characterized in that: The solenoid valve B is installed on the gas passage before the outer ring gas outlet in the regulating valve body.

3. The stepper motor automatic switch valve for a gas cooker according to claim 1, characterized in that: The servo motor is a 130 series optical axis DC non-refreshing motor produced by Guangzhou Demark Motor Co., Ltd.

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