Gas stove gas regulating valve

Abstract

A gas regulating valve for gas stove, comprising a valve body and a valve core, the valve body has an air inlet channel, an outer ring air outlet channel and an inner ring air outlet channel which are communicated with the valve cavity; the valve core is hollow to form an air cavity, and the bottom of the valve core is formed with an air inlet valve port which is communicated with the air inlet channel, characterized in that the side wall of the valve core is sequentially provided with an outer ring air outlet port matched with the outer ring air outlet channel, a first outer ring air outlet hole and a second outer ring air outlet hole in the lower circle, and sequentially provided with an inner ring air outlet port matched with the inner ring air outlet channel, a first inner ring air outlet hole and a second inner ring air outlet hole in the lower circle, and the outer ring air outlet channel, the first outer ring air outlet hole and the second outer ring air outlet hole. Through the optimized design of the outer ring air outlet port, the first outer ring air outlet hole, the second outer ring air outlet hole, the inner ring air outlet port, the first inner ring air outlet hole and the second inner ring air outlet hole, the desired firepower of the user can be quickly adjusted at the first time, and the overall firepower matching is better.

Description

Technical Field

[0001] This invention relates to a gas flow regulating valve, and more particularly to a regulating valve applied to a gas stove for adjusting the flame intensity. Background Technology

[0002] The gas valve in various gas stoves is a manually operated valve that controls the gas supply. Household gas stoves generally have an inner ring flame and an outer ring flame. A typical dual-channel gas valve usually includes a valve body with an internal air inlet channel, an inner ring outlet channel, and an outer ring outlet channel. The valve body contains a rotatable valve core, with a vent chamber at the bottom. A valve stem passes through the valve body and drives the valve core to rotate. The valve stem rotates the valve core together. The vent chamber sidewall of the valve core has a series of adjusting flame holes of varying sizes connecting the air inlet channel and the outer ring outlet channel, as well as an arc-shaped inner ring flame hole connecting the air inlet channel and the inner ring outlet channel.

[0003] In use, the inner and outer ring gas outlet channels of the valve body are connected to the nozzle. The inner ring gas outlet channel is ultimately connected to the inner ring of the stove, and the outer ring gas outlet channel is ultimately connected to the outer ring of the stove. The user can operate the valve stem by the knob on the control panel. Generally, press the knob and turn it counterclockwise to drive the valve core to rotate counterclockwise, so that the large flame hole and the arc groove on the valve core are connected to the air inlet channel in the valve body. After the gas source enters from the air inlet channel, it is divided into two independent paths. One path is connected to the outer ring gas outlet channel through the ventilation chamber and the adjusting flame hole, and the other path is connected to the inner ring gas outlet channel through the ventilation chamber and the inner ring flame hole.

[0004] When adjusting the flame, simply turn the knob, which rotates the valve core. This allows for adjustment of the outer ring flame through a series of adjustable flame holes of different diameters connected to the outer ring gas outlet channel. Even when the outer ring flame is adjusted to zero, the inner ring flame continues to emit heat. During valve core rotation, the diameter of the inner ring flame holes remains constant, meaning the flame intensity within the inner ring cannot be adjusted. With this type of gas stove, when frying eggs or making pancakes on low heat, only the outer ring flame decreases, while the inner ring flame remains relatively strong. This can cause the center of the egg or pancake to burn easily, affecting the food quality.

[0005] Relevant literature can be found in Chinese invention patent No. ZL201310388568.0, entitled "A Linear Flow Rotary Gas Valve" (Authorization Announcement No. CN103423480 B); and Chinese invention patent No. ZL201310328453.2, entitled "A Regulating Valve with Linearly Adjustable Flame Power" (Authorization Announcement No. CN 103438245 B). Similar references can also be found in CN105715818A and CN105650306A.

[0006] Existing gas valves suffer from problems such as rapid changes in heat output, making it difficult to adjust to the user's desired heat level. Furthermore, the existing valve body has poor heat output matching between different stages, failing to provide users with scientifically designed heat output based on the cooking scenario. It cannot quickly adjust to the desired heat level, and the adjustment process cannot achieve precise heat output in a fast and efficient manner. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a gas regulating valve for a gas stove with precise firepower adjustment, in view of the above-mentioned technical status.

[0008] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a gas regulating valve for a gas stove, comprising a valve body and a valve core rotatably disposed in the valve cavity of the valve body, wherein the valve body has an air inlet channel, an outer ring air outlet channel and an inner ring air outlet channel communicating with the valve cavity; the valve core is hollow to form a gas-containing cavity, and an air inlet valve port communicating with the air inlet channel is formed at the bottom of the valve core, characterized in that the upper ring of the valve core sidewall is provided with an outer ring air outlet, a first outer ring air outlet hole and a second outer ring air outlet hole cooperating with the outer ring air outlet channel, and the lower ring is provided with an inner ring air outlet, a first inner ring air outlet hole and a second inner ring air outlet hole cooperating with the inner ring air outlet channel, wherein the outer ring air outlet is in the shape of a strip arc and the diameter gradually increases, and the inner ring air outlet is also in the shape of a strip arc.

[0009] Furthermore, the diameter of the inner ring air outlet is of equal length.

[0010] Furthermore, the maximum diameter of the outer ring air outlet is larger than that of the first outer ring air outlet, and the diameter of the first outer ring air outlet is larger than that of the second outer ring air outlet; the diameter of the inner ring air outlet is larger than that of the first inner ring air outlet, and the diameter of the first inner ring air outlet is larger than that of the second inner ring air outlet.

[0011] Furthermore, when the valve core is rotated 30 to 90 degrees, the outer ring air outlet cooperates with the outer ring air outlet channel, and the outer ring air outlet gradually expands from nothing to the maximum flow area. The inner ring air outlet cooperates with the inner ring air outlet channel, and the inner ring air outlet maintains the maximum flow area.

[0012] When the valve core is rotated 120°, the first outer ring air outlet is connected to the outer ring air outlet channel, and the inner ring air outlet is connected to the inner ring air outlet channel.

[0013] When the valve core is rotated 150°, the second outer ring air outlet is connected to the outer ring air outlet channel, and the inner ring air outlet is connected to the inner ring air outlet channel.

[0014] When the valve core is rotated 180°, the outer ring air outlet, the first outer ring air outlet and the second outer ring air outlet are all offset from the outer ring air outlet channel, and the inner ring air outlet is connected to the inner ring air outlet channel.

[0015] With the valve core rotated 210°, the outer ring air outlet, the first outer ring air outlet and the second outer ring air outlet are all offset from the outer ring air outlet channel, and the first inner ring air outlet is connected to the inner ring air outlet channel.

[0016] When the valve core is rotated 240°, the outer ring air outlet, the first outer ring air outlet and the second outer ring air outlet are all offset from the outer ring air outlet channel, and the second inner ring air outlet is connected to the inner ring air outlet channel.

[0017] Compared with the prior art, the advantages of the present invention are as follows: the outer ring outlet, the first outer ring outlet and the second outer ring outlet constitute the outer ring channel, and the inner ring outlet, the first inner outer outlet and the second inner ring outlet constitute the inner ring channel. When the valve core rotates to a certain angle, the inner ring channel and the outer ring channel are combined in a pre-set order and respectively cooperate with the passage in the valve body to make the air passage connected, thereby achieving precise control of firepower. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment.

[0019] Figure 2 for Figure 1 The exploded diagram.

[0020] Figure 3 This is a schematic diagram from another perspective of the embodiment.

[0021] Figure 4 for Figure 2 A magnified view of the valve core from another perspective.

[0022] Figure 5 This is another magnified view of the valve core.

[0023] Figure 6 This is a schematic diagram of a gas stove knob. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, the gas regulating valve of the gas stove in this embodiment includes a valve body 1, a valve stem 17, a valve needle 18, a solenoid valve 14, a bottom cover 16, a shift fork 15, and a valve core 2 rotatably disposed in the valve cavity 11 of the valve body 1. The valve body 1 has an air inlet channel 19, an outer ring air outlet channel 12, and an inner ring air outlet channel 13 that communicate with the valve cavity 11.

[0026] The valve stem 17 rotates the valve core by cooperating with the longitudinal groove 27 on the valve core 2 through the crossbar 171. The valve needle contacts the bottom of the valve stem and is located inside the valve core. The solenoid valve 14 is located on the valve body, and the bottom cover places the shift fork inside the valve body.

[0027] Gas enters valve body 1 through the intake pipe via the intake passage 19. When valve stem 17 is pressed down, it causes one end 151 of valve needle fork 15 to sink, which in turn pushes the other end 152 forward and downward to open the rubber plug of solenoid valve 14, allowing gas to enter solenoid valve 14 from the bottom of valve body. Gas then enters valve core 2 through the passage connecting solenoid valve 14 and valve core 2. Valve stem 17 can drive valve core 2 to rotate, thus controlling the inner and outer ring firepower.

[0028] Combination Figure 4 and Figure 5 As shown, the valve core 2 is hollow to form an air-containing cavity. The bottom of the valve core 2 has an air inlet valve port 28 that can communicate with the air inlet channel. The upper ring of the side wall of the valve core 2 is provided with an outer ring air outlet 21, a first outer ring air outlet 22 and a second outer ring air outlet 23 that cooperate with the outer ring air outlet channel 12. The lower ring is provided with an inner ring air outlet 24, a first inner ring air outlet 25 and a second inner ring air outlet 26 that cooperate with the inner ring air outlet channel 13.

[0029] The outer ring outlet 21 is a strip-shaped arc with a gradually increasing diameter, and the inner ring outlet 24 is also a strip-shaped arc. The diameter of the inner ring outlet 24 is of equal length.

[0030] The outer ring air outlet 21 has a maximum diameter larger than the first outer ring air outlet 22, and the diameter of the first outer ring air outlet 22 is larger than the diameter of the second outer ring air outlet 23; the inner ring air outlet 24 has a diameter larger than the first inner ring air outlet 25, and the diameter of the first inner ring air outlet is larger than the diameter of the second inner ring air outlet 26.

[0031] Combination Figure 6 The knob 20 is located at the top of the valve stem 17 and protrudes from the panel. The rotation angle of the knob 20 can be understood as the rotation angle of the valve core 2.

[0032] With valve core 2 rotated 30–90°, the outer ring air outlet 21 engages with the outer ring air outlet channel 12, gradually expanding the outer ring air outlet 21 from zero to maximum flow area, achieving stepless adjustment of the outer ring heat from 0–4.1kW. The inner ring air outlet 24 engages with the inner ring air outlet channel 13, maintaining the maximum flow area and a stable maximum inner ring heat of 0.9kW, providing a better cooking experience. The inner and outer rings work together to adjust the flow rate, thereby achieving stepless adjustment of medium and high heat from 0.9kW to 5.0kW.

[0033] When the valve core 2 is rotated 120°, the first outer ring air outlet 22 is connected to the outer ring air outlet channel 12, and the inner ring air outlet 24 is connected to the inner ring air outlet channel 13; thus achieving precise control of the commonly used high-power fire, approximately 4.5kW.

[0034] When the valve core 2 is rotated 150°, the second outer ring air outlet 23 is connected to the outer ring air outlet channel 12, and the inner ring air outlet 24 is connected to the inner ring air outlet channel 13; thus achieving precise control of basic high heat for cooking beginners, approximately 4.0kW.

[0035] When the valve core 2 is rotated 180°, the outer ring air outlet 21, the first outer ring air outlet 22 and the second outer ring air outlet 23 are all offset from the outer ring air outlet channel 12, and the inner ring air outlet 24 is connected to the inner ring air outlet channel 13; thus achieving precise control of the maximum small flame.

[0036] When the valve core 2 is rotated 210°, the outer ring air outlet 21, the first outer ring air outlet 22 and the second outer ring air outlet 23 are all offset from the outer ring air outlet channel 12, and the first inner ring air outlet 25 is connected to the inner ring air outlet channel 13; thus achieving precise control of medium and low flame.

[0037] With the valve core 2 rotated 240°, the outer ring air outlet 21, the first outer ring air outlet 22, and the second outer ring air outlet 23 are all offset from the outer ring air outlet channel 12, while the second inner ring air outlet 26 is connected to the inner ring air outlet channel 13. This achieves precise control of micro-flame.

[0038] To prevent grease from clogging the holes on the valve core, they are all designed as recessed holes. The holes on the valve core should be centered and aligned with the through-holes in the valve body to prevent flow obstruction.

[0039] The logic of flow distribution: the heat can be adjusted infinitely in a wide range from 30° to 90°; the high heat has 3 levels of precise control for easy adjustment, namely 5.0kW for high-power cooking, 4.5kW for normal use, and 4.0kW for low-power cooking; the low heat has 3 levels of precise control for easy adjustment, namely 0.3kW, 0.5kW, and 0.9kW.

[0040] The heat level is calibrated by professional chefs, providing customers with 3 levels of high heat control and 3 levels of low heat control, as well as a wide-range stepless adjustment of the heat from 30° to 90°, allowing customers to choose the scientific heat level immediately. At the same time, customers can also freely adjust the heat level according to their personal cooking skills in the stepless adjustment range.

Claims

1. A gas regulating valve for a gas stove, comprising a valve body (1) and a valve core (2) rotatably disposed within a valve cavity (11) of the valve body (1), wherein the valve body (1) has an air inlet channel, an outer ring air outlet channel (12) and an inner ring air outlet channel (13) communicating with the valve cavity (11); the valve core (2) is hollow to form a gas-containing cavity, and an air inlet valve port communicating with the air inlet channel is formed at the bottom of the valve core (2), characterized in that... The valve core (2) has an outer ring air outlet (21), a first outer ring air outlet (22) and a second outer ring air outlet (23) sequentially opened on the upper ring side wall, which cooperate with the outer ring air outlet channel (12). The lower ring has an inner ring air outlet (24), a first inner ring air outlet (25) and a second inner ring air outlet (26) sequentially opened, which cooperate with the inner ring air outlet channel (13). The aforementioned outer ring air outlet (21) is in the shape of a strip arc and its diameter gradually increases. The aforementioned inner ring air outlet (24) is also in the shape of a strip arc.

2. The gas stove gas regulating valve according to claim 1, characterized in that... The diameter of the inner ring air outlet (24) is equal to the length.

3. The gas stove gas regulating valve according to claim 2, characterized in that... The maximum diameter of the outer ring air outlet (21) is larger than that of the first outer ring air outlet (22), and the diameter of the first outer ring air outlet (22) is larger than that of the second outer ring air outlet (23). The diameter of the inner ring air outlet (24) is larger than that of the first inner ring air outlet (25), and the diameter of the first inner ring air outlet is larger than that of the second inner ring air outlet (26).

4. The gas stove gas regulating valve according to claim 3, characterized in that... When the valve core (2) is rotated 30 to 90 degrees, the outer ring air outlet (21) cooperates with the outer ring air outlet channel (12), and the outer ring air outlet (21) gradually expands from nothing to the maximum flow area. The inner ring air outlet (24) cooperates with the inner ring air outlet channel (13), and the inner ring air outlet (24) maintains the maximum flow area. When the valve core (2) is rotated 120°, the first outer ring air outlet (22) is connected to the outer ring air outlet channel (12), and the inner ring air outlet (24) is connected to the inner ring air outlet channel (13). When the valve core (2) is rotated 150°, the second outer ring air outlet (23) is connected to the outer ring air outlet channel (12), and the inner ring air outlet (24) is connected to the inner ring air outlet channel (13). When the valve core (2) is rotated 180°, the outer ring air outlet (21), the first outer ring air outlet (22) and the second outer ring air outlet (23) are all offset from the outer ring air outlet channel (12), and the inner ring air outlet (24) is connected to the inner ring air outlet channel (13). When the valve core (2) is rotated 210°, the outer ring air outlet (21), the first outer ring air outlet (22) and the second outer ring air outlet (23) are all offset from the outer ring air outlet channel (12), and the first inner ring air outlet (25) is connected to the inner ring air outlet channel (13). When the valve core (2) is rotated 240°, the outer ring air outlet (21), the first outer ring air outlet (22) and the second outer ring air outlet (23) are all offset from the outer ring air outlet channel (12), and the second inner ring air outlet (26) is connected to the inner ring air outlet channel (13).

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