Gas valve and gas cooking equipment

Abstract

The utility model discloses a gas valve and gas cooking equipment, the gas valve comprises a valve body, a cut-off mechanism and an adjusting mechanism, the valve body is provided with a cavity, an inlet and an outlet; the cut-off mechanism is connected with the valve body and is configured to control opening and closing of the inlet; the adjusting mechanism is connected with the valve body and is configured to control the flow of the outlet. According to the fuel gas valve, the stop mechanism and the adjusting mechanism are connected to the valve body, integration of the stop valve and the adjusting valve can be achieved, and the integration level of the fuel gas valve is improved.

Description

Technical Field

[0001] This utility model relates to the field of cooking equipment technology, and in particular to a gas valve and a gas cooking device. Background Technology

[0002] Gas cooking equipment using related technologies typically includes shut-off valves and regulating valves. These valves are installed separately and connected via pipelines, which increases the potential for gas leaks. Utility Model Content

[0003] One objective of this invention is to provide a gas valve and a gas cooking device.

[0004] A gas valve according to an embodiment of the present invention includes: a valve body having a cavity, an inlet, and an outlet; a shut-off mechanism connected to the valve body and configured to control the opening and closing of the inlet; and a regulating mechanism connected to the valve body and configured to control the flow rate of the outlet.

[0005] According to the gas valve of this utility model embodiment, the shut-off mechanism and the regulating mechanism are connected to the valve body, which can realize the integration of the shut-off valve and the regulating valve and improve the integration degree of the gas valve.

[0006] In addition, the gas valve according to the above embodiments of this utility model may also have the following additional technical features:

[0007] In some embodiments, the valve body is constructed as a single, integral structure.

[0008] In some embodiments, the inlet and the outlet are located on the same side of the valve body; and / or, the shut-off mechanism and the regulating mechanism are mounted on the same side of the valve body.

[0009] In some embodiments, the cavity includes a first cavity, a second cavity, and a connecting cavity, the inlet connecting to the first cavity, the second cavity connecting to the outlet, the shut-off mechanism controlling the opening and closing of the first cavity and the connecting cavity, and the regulating mechanism controlling the flow rate between the connecting cavity and the second cavity.

[0010] In some embodiments, the first end of the communicating cavity is provided with a first communicating portion, and the shut-off mechanism includes a first driving portion and a first valve core portion. The first valve core portion is disposed in the first cavity and is opposite to the first communicating portion. The first driving portion drives the first valve core portion to move to open and close the first communicating portion. When the first communicating portion is open, it communicates with the first cavity, and when the first communicating portion is closed, it is disconnected from the first cavity.

[0011] In some embodiments, the valve body further has a first mounting port, which is opposite to the first communicating portion. The first driving portion is mounted on the outside of the valve body and extends into the first mounting port to connect to the first valve core portion. A first sealing element is provided between the first driving portion and the periphery of the first mounting port.

[0012] In some embodiments, the second end of the communicating cavity is provided with a second communicating portion, and the adjusting mechanism includes a second driving portion and a second valve core portion. The second valve core portion is disposed in the second cavity and is opposite to the second communicating portion. The second driving portion drives the second valve core portion to move to adjust the opening degree of the second communicating portion. When the second communicating portion is open, it communicates with the second cavity.

[0013] In some embodiments, the valve body further has a second mounting port, the second mounting port and the second connecting portion are distributed along the axial direction of the second connecting portion, and the adjusting mechanism further includes a second sealing element, the second sealing element being connected to the periphery of the second valve core and the second mounting port respectively, to close the second mounting port.

[0014] In some embodiments, the second drive unit is mounted on the outside of the valve body and is electromagnetically driven with the second valve core unit.

[0015] In some embodiments, the inlet and the outlet are located on the same side of the valve body; and / or, the shut-off mechanism and the regulating mechanism are mounted on the same side of the valve body.

[0016] In some embodiments, the air intake section of the inlet is elliptical; and / or, the inner side of the peripheral wall of the air intake section of the inlet is provided with a recessed platform structure; and / or, the outlet is provided with a cylindrical structure; and / or, the periphery of the end of the outlet is provided with a chamfer or rounding.

[0017] A gas cooking device according to an embodiment of the present invention includes: the aforementioned gas valve; and a gas outlet pipe, wherein the gas outlet pipe is connected to the outlet.

[0018] In some embodiments, a sealing ring is provided between the outer peripheral surface of the vent pipe and the inner peripheral surface of the outlet, the outer peripheral diameter of the vent pipe is smaller than the inner peripheral diameter of the outlet, and the difference between the inner peripheral diameter of the outlet and the outer peripheral diameter of the vent pipe is less than twice the wire diameter of the sealing ring. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a gas valve according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of a cross-sectional view of a gas valve according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of a cross-sectional view of a gas valve according to an embodiment of the present invention from another direction.

[0022] Figure 4 This is a schematic diagram of the connection between the gas valve and the inlet pipe and outlet pipe according to one embodiment of the present invention.

[0023] Figure 5 yes Figure 4 An explosion diagram.

[0024] Figure 6 yes Figure 4 A schematic diagram showing the connection between the inlet of the gas valve and the intake pipe.

[0025] Figure 7 yes Figure 4 A schematic diagram showing the connection between the outlet of the gas valve and the gas outlet pipe.

[0026] Figure label:

[0027] Gas valve 100, valve body 10, cavity 101, inlet 1021, outlet 1022, first cavity 103, first opening 1031, first mounting port 1032, second cavity 104, second opening 1041, second mounting port 1042, connecting cavity 105, connecting groove 1051, first connecting part 1052, second connecting part 1053, shell body 11, first cover plate 121, second cover plate 122, third cover plate 123, shut-off mechanism 20, first drive part 21, first valve core part 22, first seal 23, adjusting mechanism 30, second drive part 31, second valve core part 32, second seal 33, inlet pipe 200, sealing gasket 201, outlet pipe 300, pipe body part 301, limiting part 302, sealing ring 303. Detailed Implementation

[0028] In related technologies, the outlet uses a threaded connection. Tightening the nut via the threaded connection drives the gas outlet pipe, which then presses against the gas outlet connector on the valve body for sealing. However, this method is inefficient at tightening the nut. Existing solutions place the inlet and outlet on opposite sides of the valve body. While this saves height space in planar assembly, in non-planar assembly, such as when the gas outlet pipe needs to connect from the valve body outlet to the burner inlet located above or below the valve body, more height space is required. Designing the inlet and outlet on the same side of the valve body saves space before and after the valve body. Therefore, this invention provides a gas valve with a quick-connect gas line interface arranged in the same direction, belonging to the field of gas appliance and gas control technology. This invention aims to improve the assembly efficiency of the gas outlet pipeline; designing the valve body inlet and outlet on the same side saves assembly space for the pipelines before and after the valve body.

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0030] like Figures 1 to 3 The gas valve 100 according to an embodiment of the present utility model includes: valve body 10, shut-off mechanism 20 and regulating mechanism 30.

[0031] The valve body 10 has a cavity 101, an inlet 1021, and an outlet 1022. The inlet 1021 allows gas to enter the gas valve 100. The cavity 101 guides the gas flow from the inlet 1021 to the outlet 1022. The outlet 1022 allows the gas to be discharged from the gas valve 100 to a downstream pipeline. A shut-off mechanism 20 is connected to the valve body 10 and is configured to control the opening and closing of the inlet 1021. A regulating mechanism 30 is connected to the valve body 10 and is configured to control the flow rate at the outlet 1022. The shut-off mechanism 20 can control the opening and closing of the gas valve 100. When the shut-off mechanism 20 is closed, gas cannot flow from the inlet 1021 to the cavity 101, and the gas valve 100 cuts off the gas passage. The regulating mechanism controls the gas flow rate to adjust the cooking power of the gas cooking equipment, and thus adjust the cooking temperature, cooking time, etc., as needed.

[0032] According to the gas valve 100 of this utility model embodiment, the shut-off mechanism 20 and the regulating mechanism 30 are connected to the valve body 10, which can realize the integration of the shut-off valve and the regulating valve, improve the integration degree of the gas valve 100. In addition, by utilizing integration, the connecting pipelines between valve bodies 10 can be reduced, effectively reducing leakage points, reducing the safety risks of the gas valve 100, and improving safety and stability.

[0033] like Figures 1 to 3 In some embodiments, the valve body 10 is constructed as a single integral structure. This can improve the integration of the gas valve 100, reduce the space occupied by the gas valve 100, and facilitate the installation, use, and maintenance of the gas valve 100.

[0034] Of course, the valve body 10 in this utility model can also be configured as a split structure. For example, the valve body 10 can be configured as a main body and a mounting structure that are split, with the inlet 1021, outlet 1022 and cavity 101 located in the main body, and the shut-off mechanism 20 and adjusting mechanism 30 located in the mounting structure. The above description is only some embodiments of this utility model and is not intended to limit the scope of protection of this utility model.

[0035] Combination Figures 1 to 7In some embodiments, the inlet 1021 and outlet 1022 are located on the same side of the valve body 10, which can save assembly space in the front-to-back direction of the valve body 10. Specifically, when the inlet 1021 and outlet 1022 are located on different sides of the valve body 10, the intake pipe 200 connecting the inlet 1021 and the outlet pipe 300 connecting the outlet 1022 are respectively connected to different sides of the gas valve 100, which will occupy space on different sides of the gas valve 100. However, the space occupied by the intake pipe 200 or the outlet pipe 300 is limited, and the space on the same side as them is wasted. In particular, when the inlet 1021 and outlet 1022 are located on opposite sides of the valve body 10, a large amount of space next to the intake pipe 200 or the outlet pipe 300 is wasted, affecting the space utilization rate. This utility model places the inlet 1021 and outlet 1022 on the same side of the valve body 10. The intake pipe 200 connected to the inlet 1021 and the outlet pipe 300 connected to the outlet 1022 can be connected to the same side of the gas valve 100. In this way, the intake pipe 200 and the outlet pipe 300 will occupy the space on the same side of the gas valve 100, which can make full use of the space next to the intake pipe 200 or the outlet pipe 300, thereby reducing the space occupied by the intake pipe and the outlet pipe and improving the space utilization rate.

[0036] Furthermore, by installing the shut-off mechanism 20 and the regulating mechanism 30 on the same side of the valve body 10, the assembly space of the valve body 10 can be further saved. Specifically, when the shut-off mechanism 20 and the regulating mechanism 30 are on different sides of the valve body 10, the shut-off mechanism 20 and the regulating mechanism 30 will occupy space on different sides of the gas valve 100. The space occupied by the shut-off mechanism 20 or the regulating mechanism 30 is limited, and the space next to the shut-off mechanism 20 and the regulating mechanism 30 is wasted. In particular, when the shut-off mechanism 20 and the regulating mechanism 30 are located on opposite sides of the valve body 10, a large amount of space next to the shut-off mechanism 20 and the regulating mechanism 30 is wasted, affecting the space utilization rate. This utility model, by placing the shut-off mechanism 20 and the regulating mechanism 30 on the same side of the valve body 10, will reduce the space occupation and improve the space utilization rate.

[0037] In addition, by placing the shut-off mechanism 20 and the regulating mechanism 30 on the same side of the valve body 10, when maintenance of the gas valve 100 is required, it is only necessary to observe or detect the working status of the gas valve 100 from the side of the gas cooking equipment on which the gas valve 100 is installed. This facilitates the assembly and maintenance of the gas valve 100 and improves the stability and service life of the gas valve 100.

[0038] like Figure 2 and Figure 3In some embodiments, cavity 101 includes a first cavity 103, a second cavity 104, and a connecting cavity 105. Inlet 1021 connects to the first cavity 103, and the second cavity 104 connects to the outlet 1022. A shut-off mechanism 20 controls the opening and closing of the first cavity 103 and the connecting cavity 105, and a regulating mechanism 30 controls the flow rate between the connecting cavity 105 and the second cavity 104. Gas valve 100 can have a shut-off state, in which the first cavity 103 and the connecting cavity 105 are disconnected, and gas entering the first cavity 103 cannot continue to flow into the connecting cavity 105. Gas valve 100 can also have a connecting state, in which the first cavity 103 and the connecting cavity 105 are connected. Gas entering the first cavity 103 will pass through the shut-off mechanism 20 and then enter the connecting cavity 105, flowing towards the second cavity 104. When the regulating mechanism 30 controls the connection between the connecting cavity 105 and the second cavity 104, the gas in the connecting cavity 105 can... The gas flows into the second chamber 104 and then into the outlet 1022, from which it can be discharged. The regulating mechanism can control the flow area between the connecting chamber 105 and the second chamber 104, thereby regulating the gas flow rate of the gas valve 100 to adjust the gas supply per unit time. The gas flow rate can be adjusted according to actual cooking requirements (cooking temperature, cooking time, etc.). When the regulating mechanism 30 controls the connecting chamber 105 and the second chamber 104 to disconnect, the gas in the connecting chamber 105 will not be able to flow into the second chamber 104.

[0039] By setting the first chamber 103 and the second chamber 104, the shut-off mechanism 20 can be matched with the first chamber 103, and the regulating mechanism 30 can be matched with the second chamber 104. This allows the shut-off mechanism 20 to control the gas valve 100 to close, and the regulating mechanism 30 to adjust the flow rate of the gas valve 100. It also facilitates the sealing of the gas valve 100, thereby improving the stability and safety of the gas valve 100.

[0040] Combination Figure 2 and Figure 3 In some examples, the first end of the connecting cavity 105 is provided with a first connecting portion 1052. The shut-off mechanism 20 includes a first driving portion 21 and a first valve core portion 22. The first valve core portion 22 is disposed in the first cavity 103 and opposite to the first connecting portion 1052. The first driving portion 21 drives the first valve core portion 22 to move to open and close the first connecting portion 1052. When the first connecting portion 1052 is open, it communicates with the first cavity 103; when the first connecting portion 1052 is closed, it is disconnected from the first cavity 103. Through the cooperation of the first connecting portion 1052 and the first cavity 103, the first valve core portion 22 can be conveniently used to open and close the first connecting portion 1052, simplifying the structure of the gas valve 100 and facilitating control. Specifically, the first connecting portion 1052 can be provided with a first opening 1031, and the first valve core portion 22 is disposed in the first cavity 103 and opposite to the first opening 1031.

[0041] The valve body 10 also has a first mounting port 1032, which is opposite to the first connecting portion 1052. A first driving portion 21 is mounted on the outside of the valve body 10 and extends into the first mounting port 1032 to connect with the first valve core portion 22. The first mounting port 1032 facilitates the installation of the first driving portion 21, ensuring stable installation between the first driving portion 21 and the valve body 10, and allowing the first driving portion 21 to drive the first valve core portion 22 to move. Furthermore, a first sealing element 23 is provided between the first driving portion 21 and the periphery of the first mounting port 1032. The first sealing element 23 can be used to seal the gap between the first driving portion 21 and the periphery of the first mounting port 1032, improving the sealing performance of the gas valve 100.

[0042] Combination Figure 2 and Figure 3 The valve body 10 may include a housing body 11 and a first cover plate 121. A connecting cavity 105 is configured to extend in the left-right direction, a first connecting portion 1052 is configured to extend in the up-down direction, and an inlet 1021 is configured to extend in the front-back direction. The connecting cavity 105 includes a connecting groove 1051 and a first connecting portion 1052, wherein the connecting groove 1051 extends in the left-right direction, and the first connecting portion 1052 connects to the left end of the connecting groove 1051 and communicates with the connecting groove 1051. To facilitate the integral molding of the housing body 11, the first connecting portion 1052 and the first cavity 103 may extend in the up-down direction and penetrate the upper and / or lower ends of the housing body 11.

[0043] For example, the first connecting portion 1052 extends vertically, with its upper end penetrating the upper end of the shell body 11 to form a first opening 1031. The first cavity 103 extends vertically, with its upper end penetrating the upper end of the shell body 11 to form a first mounting port 1032. The first opening 1031 is located inside the first cavity 103. A first cover plate 121 covers the upper end of the shell body 11 and seals the first mounting port 1032. The first cover plate 121 and the first opening 1031 are spaced apart. A first valve core 22 is located between the first opening 1031 and the first cover plate 121. The opening and closing of the first opening 1031 are achieved by the vertical movement of the first valve core 22. A first driving portion 21 can be connected to the first cover plate 121. The connecting groove 1051 extends in the left and right direction. The shell body 11 has a through hole on one side in the left and right direction. The through hole is connected to the connecting groove 1051. The connecting groove 1051 can be constructed by drilling. Then the through hole is sealed with a sealing component to make the connecting groove 1051, thereby facilitating the integral molding of the shell body 11.

[0044] Combination Figure 2 and Figure 3In some embodiments, the second end of the connecting cavity 105 is provided with a second connecting portion 1053. The adjusting mechanism 30 includes a second driving portion 31 and a second valve core portion 32. The second valve core portion 32 is disposed in the second cavity 104 and is opposite to the second connecting portion 1053. The second driving portion 31 drives the second valve core portion 32 to move to adjust the opening degree of the second connecting portion 1053. When the second connecting portion 1053 is open, it communicates with the second cavity 104. Through the cooperation of the second connecting portion 1053 and the second cavity 104, the opening degree of the first connecting portion 1052 can be easily adjusted using the second valve core portion 32, simplifying the structure of the gas valve 100 and facilitating control. Specifically, the second connecting portion 1053 may be provided with a second opening 1041. The second valve core portion 32 is disposed in the second cavity 104 and is opposite to the second opening 1041. The second valve core portion 32 can move along the axial direction of the second opening 1041 to adjust the opening of the second connecting portion 1053, thereby realizing the adjustment of the gas flow rate of the gas valve 100.

[0045] The valve body 10 also has a second mounting port 1042. The second mounting port 1042 and the second connecting portion 1053 are distributed axially along the second connecting portion 1053. By providing the second mounting port 1042, the second drive unit 31 can be easily installed, achieving stable installation of the second drive unit 31 and the valve body 10, and facilitating the second drive unit 31 to drive the second valve core 32 to move. The adjusting mechanism 30 also includes a second sealing element 33, which is connected to the periphery of the second valve core 32 and the second mounting port 1042 respectively, to seal the second mounting port 1042. The second sealing element 33 can be used to seal the second mounting port 1042, improving the sealing performance of the gas valve 100.

[0046] The second drive unit 31 is mounted on the outside of the valve body 10 and is electromagnetically driven with the second valve core 32. The electromagnetic force can be used to drive the second valve core 32 to move, thereby improving the sealing performance of the gas valve 100.

[0047] Combination Figure 2 and Figure 3 The valve body 10 may include a housing body 11, a second cover plate 122, and a third cover plate 123. The connecting cavity 105 is arranged in a left-right direction, the second connecting portion 1053 is arranged in a vertical direction, and the outlet 1022 is arranged in a front-back direction. The connecting cavity 105 includes a connecting groove 1051 and a second connecting portion 1053, wherein the connecting groove 1051 extends in a left-right direction, and the second connecting portion 1053 connects to the right end of the connecting groove 1051 and communicates with the connecting groove 1051. To facilitate the integral molding of the housing body 11, the second connecting portion 1053 and the second cavity 104 may be arranged to extend in a vertical direction and penetrate the upper and / or lower ends of the housing body 11.

[0048] For example, the second connecting portion 1053 extends vertically, with its upper end penetrating the upper end of the housing body 11 and forming a second mounting port 1042. The second valve core 32 is movably inserted into the second connecting portion 1053 in the vertical direction. A second sealing member 33 connects the upper part of the second valve core 32 and the periphery of the second mounting port 1042 to close the second mounting port 1042. Additionally, a second cover plate 122 covers the second mounting port 1042. The lower end of the second connecting portion 1053 penetrates the lower end of the housing body 11 and forms a second opening 1041. A third sealing member is provided at the lower end of the second valve core 32. The second valve core 32 can be moved vertically to close and open the second opening 1041, and the opening degree of the second connecting portion 1053 can be adjusted by adjusting the distance between the third sealing member and the periphery of the second opening 1041. The second cavity 104 extends vertically and penetrates the lower end of the shell body 11. The second opening 1041 is located inside the second cavity 104. The third cover plate 123 covers the lower end of the second cavity 104 and closes the lower end of the second cavity 104. The second cover plate 122 is spaced apart from the second opening 1041. The second valve core 32 is located between the second opening 1041 and the second cover plate 122. The opening degree of the second opening 1041 is adjusted by moving the second valve core 32 vertically. The second drive unit 31 is connected to the second cover plate 122.

[0049] Combination Figure 1 , Figure 4 , Figure 5 as well as Figure 6 In some embodiments, the intake section of inlet 1021 is elliptical, which can achieve circumferential limiting when connecting to the intake pipe 200, improving the stability of the connection. Optionally, a recessed platform structure is provided on the inner side of the peripheral wall of the intake section of inlet 1021. The recessed platform structure can limit the connection when connecting to the intake pipe 200, making assembly more convenient. When connecting the intake pipe 200 to inlet 1021, a sealing gasket 201 can be provided on the recessed platform structure. The end of the intake pipe 200 is provided with a flange, the shape and size of which are adapted to the shape and size of the recessed platform structure. The flange can be located inside the recessed platform structure and abut against the sealing gasket 201 along the axial direction, so as to achieve a seal between the joint of the intake pipe 200 and the inlet 1021 using the sealing gasket 201. The inner periphery of the recessed platform structure can be non-circular, which can facilitate the installation of the intake pipe 200, improve the stability of the intake pipe 200 installation, and prevent mistaken connection. In addition, the flange can be provided with a first mounting hole, and the gas valve 100 can be provided with a second mounting hole. Bolts and other fasteners can be used to pass through the first and second mounting holes to achieve a stable connection between the connector end of the air inlet pipe 200 and the gas valve 100.

[0050] In addition, the outlet 1022 can be configured as a cylindrical structure, wherein the inner wall of the cylindrical structure can be configured as a smooth wall surface to facilitate the connection between the air outlet pipe 300 and the outlet 1022, thereby improving assembly efficiency. Furthermore, the end periphery of the outlet 1022 is provided with a chamfer or rounding to facilitate the sealing ring 303 sliding into the cylinder when the air outlet is connected.

[0051] In addition, the cut-off mechanism 20 of this utility model is an electromagnetic drive mechanism, in which a coil is provided, and it can be configured to open the air passage when the coil is energized and close the air passage when the coil is de-energized.

[0052] The regulating mechanism 30 of this utility model can also be set as an electromagnetic drive mechanism, in which an regulating coil is provided, and the size of the gas passage cross section can be controlled by controlling the current of the regulating coil, thereby realizing the regulation of the gas flow rate.

[0053] Combination Figure 4 and Figure 5 According to an embodiment of the present utility model, the gas cooking device includes: the aforementioned gas valve 100; a gas outlet pipe 300, the gas outlet pipe 300 being connected to an outlet 1022.

[0054] The outlet 1022 of the gas valve 100 adopts a quick-connect structure, and the gas outlet pipe 300 can be plugged in, which can greatly improve the assembly efficiency. This connection method is suitable for the arrangement structure where the assembly space is small and it is not easy to tighten the nut. The inlet 1021 and outlet 1022 of the gas valve 100 are designed on the same side, and the inlet pipe 200 and the outlet pipe 300 are connected on the same side, reducing the space occupied in front of the valve body 10.

[0055] like Figure 7 In some embodiments, a sealing ring 303 is provided between the outer peripheral surface of the gas outlet pipe 300 and the inner peripheral surface of the outlet 1022. The outer peripheral diameter of the gas outlet pipe 300 is smaller than the inner peripheral diameter of the outlet 1022, and the difference between the inner peripheral diameter of the outlet 1022 and the outer peripheral diameter of the gas outlet pipe 300 is less than twice the diameter of the sealing ring 303. This allows for a quick-connect connection between the gas outlet pipe 300 and the gas valve 100, improving the connection stability and sealing performance between the gas outlet pipe 300 and the gas valve 100. Specifically, the outer diameter of the gas outlet pipe 300 is smaller than the inner diameter of the outlet 1022. The gas outlet pipe 300 is fitted with the sealing ring 303 and inserted into the outlet 1022. The gap between the inner peripheral surface of the outlet 1022 and the gas pipe is smaller than the diameter of the sealing ring 303. The sealing effect is achieved by compressing the sealing ring 303. The inner wall edge of the outlet 1022 has a chamfer to facilitate the sliding of the sealing ring 303 into the outlet 1022 when the gas outlet pipe 300 is connected.

[0056] The exhaust pipe 300 can be configured to include a pipe body 301 and a limiting part 302. The limiting part 302 is connected to the pipe body along the axial direction and protrudes from the outer peripheral surface of the pipe body 301. The outlet 1022 includes a first section located upstream and a second section located downstream along the exhaust direction. The radial dimension of the first section is smaller than that of the second section, and a step is constructed at the connection between the first section and the second section. The edge of the outlet 1022 is rounded or chamfered, or the periphery of the outlet end of the second section is rounded or chamfered.

[0057] When installing the vent pipe 300, the sealing ring 303 can be fitted onto the pipe body, and the end of the pipe body 301 can be inserted into the outlet 1022. The end of the pipe body 301 can be quickly inserted. The radial dimension of the limiting part 302 is smaller than the radial dimension of the first section and larger than the radial dimension of the second section. The radial dimension of the sealing ring 303 is smaller than the radial dimension of the second section, larger than the radial dimension of the first section, and smaller than the radial dimension of the second section after the edge is rounded or chamfered. In this way, when the vent pipe 300 is inserted into the outlet 1022, under the limiting action of the limiting part 302 and the cooperation of the rounded or chamfered structure, the sealing ring 303 can be pushed into the second section. The sealing ring 303 can also enter the outlet 1022 and seal with the inner circumferential surface of the outlet 1022. The limiting part 302 achieves the limiting of the vent pipe 300.

[0058] In addition, the aforementioned radial dimension refers to the dimension perpendicular to the axis. For example, the radial dimension of outlet 1022 refers to the maximum dimension of the inner circumferential surface of outlet 1022 in the direction perpendicular to the axis of outlet 1022. When the axis of outlet 1022 extends in the front-back direction, the radial dimension of outlet 1022 may include the maximum dimension of outlet 1022 in the up-down direction, the maximum dimension of outlet 1022 in the left-right direction, etc.

[0059] The radial dimension of the limiting part 302 is greater than the radial dimension of the first segment and less than the radial dimension of the second segment, including: the maximum dimension of the limiting part 302 in the vertical direction is greater than the maximum dimension of the first segment in the vertical direction and less than the maximum dimension of the second segment in the vertical direction; the maximum dimension of the limiting part 302 in the horizontal direction is greater than the maximum dimension of the first segment in the horizontal direction and less than the maximum dimension of the second segment in the horizontal direction, etc. Wherein, when the tube body 301 and the outlet 1022 are circular, the radial dimension of the tube body 301 is its outer diameter, and the radial dimension of the outlet 1022 is its inner diameter. When the tube body 301 and the outlet 1022 are not circular, the radial dimension refers to the dimension of the corresponding position of the tube body 301 and the outlet 1022 in the direction perpendicular to the axis of the outlet 1022.

[0060] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0061] 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0062] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0063] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0065] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A gas valve (100), characterized in that, include: A valve body (10) having a cavity (101), an inlet (1021) and an outlet (1022), wherein the inlet (1021) and the outlet (1022) are located on the same side of the valve body (10); A shut-off mechanism (20) is connected to the valve body (10) and configured to control the opening and closing of the inlet (1021); A regulating mechanism (30) is connected to the valve body (10) and configured to control the flow rate of the outlet (1022).

2. The gas valve (100) according to claim 1, characterized in that, The shut-off mechanism (20) and the adjustment mechanism (30) are mounted on the same side of the valve body (10); and / or the valve body (10) is constructed as an integral structure.

3. The gas valve (100) according to claim 1 or 2, characterized in that, The cavity (101) includes a first cavity (103), a second cavity (104), and a connecting cavity (105). The inlet (1021) connects to the first cavity (103), the second cavity (104) connects to the outlet (1022), the shut-off mechanism (20) controls the opening and closing of the first cavity (103) and the connecting cavity (105), and the regulating mechanism (30) controls the flow rate between the connecting cavity (105) and the second cavity (104).

4. The gas valve (100) according to claim 3, characterized in that, The first end of the connecting cavity (105) is provided with a first connecting part (1052). The shut-off mechanism (20) includes a first driving part (21) and a first valve core part (22). The first valve core part (22) is located in the first cavity (103) and is opposite to the first connecting part (1052). The first driving part (21) drives the first valve core part (22) to move to open and close the first connecting part (1052). When the first connecting part (1052) is open, it is connected to the first cavity (103). When the first connecting part (1052) is closed, it is disconnected from the first cavity (103).

5. The gas valve (100) according to claim 4, characterized in that, The valve body (10) also has a first mounting port (1032), which is opposite to the first connecting part (1052). The first driving part (21) is mounted on the outside of the valve body (10) and extends into the first mounting port (1032) to connect to the first valve core part (22). A first sealing element (23) is provided between the first driving part (21) and the periphery of the first mounting port (1032).

6. The gas valve (100) according to claim 3, characterized in that, The second end of the connecting cavity (105) is provided with a second connecting part (1053). The adjusting mechanism (30) includes a second driving part (31) and a second valve core part (32). The second valve core part (32) is located in the second cavity (104) and is opposite to the second connecting part (1053). The second driving part (31) drives the second valve core part (32) to move to adjust the opening degree of the second connecting part (1053). When the second connecting part (1053) is open, it communicates with the second cavity (104).

7. The gas valve (100) according to claim 6, characterized in that, The valve body (10) also has a second mounting port (1042), the second mounting port (1042) and the second connecting portion (1053) are distributed along the axial direction of the second connecting portion (1053), and the adjusting mechanism (30) further includes a second sealing member (33), the second sealing member (33) is respectively connected to the periphery of the second valve core (32) and the second mounting port (1042) to close the second mounting port (1042); And / or, the second drive unit (31) is mounted on the outside of the valve body (10) and electromagnetically drives the second valve core unit (32).

8. The gas valve (100) according to claim 1, characterized in that, The air intake section of the inlet (1021) is elliptical; and / or, the inner side of the peripheral wall of the air intake section of the inlet (1021) is provided with a recessed platform structure; and / or, the outlet (1022) is provided with a cylindrical structure; and / or, the periphery of the end of the outlet (1022) is provided with a chamfer or rounding.

9. A gas-fired cooking appliance, characterized in that, include: The gas valve (100) according to any one of claims 1-8; An exhaust pipe (300) is inserted into the outlet (1022).

10. The gas-fired cooking appliance according to claim 9, characterized in that, A sealing ring (303) is provided between the outer peripheral surface of the vent pipe (300) and the inner peripheral surface of the outlet (1022). The outer peripheral diameter of the vent pipe (300) is smaller than the inner peripheral diameter of the outlet (1022), and the difference between the inner peripheral diameter of the outlet (1022) and the outer peripheral diameter of the vent pipe (300) is less than twice the wire diameter of the sealing ring (303).

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