Gas regulating valve, valve body assembly and gas stove

Abstract

The present invention discloses a gas regulating valve, comprising: a valve seat and a valve, wherein the valve seat is formed with an air inlet, an air outlet, and a fluid channel connecting the air inlet and the air outlet, a valve cover is arranged at the air inlet, and the valve is provided with a protrusion located in the fluid channel, wherein the distance between the protrusion and the side wall of the fluid channel gradually decreases as the valve faces the air inlet; a drive assembly, comprising a linkage rod, a first end of which is connected to the valve; a first limiter, arranged at the middle position or the second end of the linkage rod; a drive unit, for driving the linkage rod to move axially along the air inlet to open or close the valve; a second limiter, for limiting the movement of the first limiter when the valve is opened; and an adjustment assembly, for driving the first limiter to move relative to the linkage rod to move closer to or away from the second limiter, or for driving the second limiter to move closer to or away from the first limiter. The present invention has a simple structure, low cost, and can accurately achieve the purpose of regulating the amount of gas.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas stoves, and more specifically, relates to a gas regulating valve, a valve body assembly and a gas stove. Background Art

[0002] Most current gas cookers use mechanical valves for power regulation, which lacks intelligent control. However, some high-end gas cookers use standard electronic proportional valves for power regulation, which do achieve intelligent control to a certain extent. Since gas cookers have a wide power control range, from 300W to 5000W, the control accuracy of standard electronic proportional valves is insufficient to meet the high-precision control requirements within this wide power range. This limits the flexibility of gas cookers in power control, and the high cost of standard electronic proportional valves undermines the overall competitive advantage of the appliance. A Chinese patent application, publication number CN204459369U, discloses a gas flow regulating valve comprising a bracket and a regulating valve body mounted on the bracket, wherein the regulating valve body is provided with a hollow inner cavity, an air inlet nozzle and an air outlet nozzle connected to the hollow inner cavity are provided axially and radially at one end of the regulating valve body, respectively, and a stepper motor is provided at the other end, wherein a rotating valve core connected to the power output end of the stepper motor is provided in the hollow inner cavity, a copper plug is provided at the top of the rotating valve core, and a conical end is provided at the top of the copper plug that matches the air inlet nozzle, wherein the regulating valve body is also provided with a positioning block that matches the rotating valve core. This disclosed technical solution has high control accuracy, but the technical solution is driven by a stepper motor, resulting in a high cost problem. Summary of the Invention

[0003] The present invention provides a gas regulating valve to overcome the problem of high cost of the gas regulating valve in the prior art.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a gas regulating valve, comprising:

[0005] A valve seat and a valve, wherein the valve seat is formed with an air inlet, an air outlet, and a fluid channel connecting the air inlet and the air outlet, the valve cover is arranged on the air inlet, and the valve is provided with a protrusion located in the fluid channel, and the distance between the protrusion and the side wall of the fluid channel gradually decreases along the direction in which the valve faces the air inlet;

[0006] A drive assembly includes a linkage rod, a first end of which is connected to the valve; a first limiter, disposed at a middle position or a second end of the linkage rod; and a drive unit, disposed on the valve seat, for driving the linkage rod to move axially along the air inlet to open or close the air inlet.

[0007] a second limiting member, disposed between the air inlet and the first limiting member, for limiting the movement of the first limiting member when the valve is opened;

[0008] The regulating assembly is arranged on the valve seat, and is used to drive the first limiting member to move relative to the linkage rod to approach or move away from the second limiting member, or to drive the second limiting member to approach or move away from the first limiting member.

[0009] In one embodiment, the driving unit is a clutch coil and is arranged around the outside of the first limit member. The first limit member is a valve core member. The clutch coil is used to magnetically drive the first limit member to drive the linkage rod to move axially along the air inlet, so that the valve opens or closes the air inlet.

[0010] In one embodiment, the first limiting member is threadedly connected to the linkage rod, and the adjustment assembly is used to drive the first limiting member to rotate and move the first limiting member along the linkage rod.

[0011] In one embodiment, the adjustment component includes:

[0012] a regulating valve core, disposed between the second limiting member and the valve, wherein the second limiting member is disposed on the regulating valve core, and the regulating valve core is formed with a first limiting hole opened along the axial direction of the air inlet;

[0013] The linkage rod is passed through the first limiting hole, and at least a portion of the first limiting member that is threadedly connected to the linkage rod is disposed in the first limiting hole, and the at least portion is slidable in the first limiting hole only along the axial direction of the first limiting hole;

[0014] The regulating assembly further includes a regulating coil, which is arranged around the outside of the regulating valve core and is used for driving the regulating valve core to rotate by magnetic induction.

[0015] In one embodiment, the valve seat is formed with a second limiting hole located between the regulating valve core and the valve and opened along the axial direction of the air inlet, and the linkage rod is also penetrated by the second limiting hole.

[0016] In one embodiment, a shaft sleeve is further included, which includes a mounting portion and a sleeve portion, the mounting portion is installed on the valve seat, the regulating valve core and the second limiting member are both sleeved on the outside of the sleeve portion, the sleeve portion is sleeved on at least part of the outside of the second limiting member, and the sleeve portion forms the first limiting hole.

[0017] In one embodiment, a limiting step is protruded from the inner wall of the first limiting hole, and the limiting step is arranged opposite to the second limiting member. A spring is provided in the first limiting hole and is sleeved on the linkage rod. One end of the spring abuts against the limiting step, and the other end abuts against a part of the first limiting member located in the first limiting hole.

[0018] In one embodiment, a sealing member is further provided in the valve seat, wherein the sealing member has an open structure at one end close to the air inlet and a closed structure at the other end, and the second limit member and the first limit member are installed in the sealing member; the regulating coil and the clutch coil are installed on the outer peripheral surface of the sealing member.

[0019] On the other hand, the present invention provides a valve body assembly, including a valve body, a gas inlet, a central air outlet, a first outer ring air outlet and a stop valve arranged on the valve body, a gas flow channel is provided in the valve body, the gas flow channel connects the gas inlet with the central air outlet and the first outer ring air outlet, the stop valve is provided on the side of the gas flow channel close to the gas inlet, and also includes the gas regulating valve as described above, the air inlet valve port is connected to the gas flow channel, and the air outlet valve port is connected to the first outer ring air outlet.

[0020] On the other hand, the present invention also provides a gas stove, including a stove body and the valve body assembly as described above, wherein the valve body assembly is installed on the stove body, the central air outlet is connected to the central fire hole provided on the stove body, and the first outer ring air outlet is connected to the outer ring main fire hole provided on the stove body.

[0021] Compared with the prior art, the present invention has the following beneficial effects: when in use, the adjustment assembly is used to drive the first limit member toward or away from the second limit member, or to drive the second limit member toward or away from the first limit member, thereby adjusting the distance between the first limit member and the second limit member. Under the action of the drive unit, the drive unit drives the linkage rod to move along its axial direction so that the valve opens the air inlet. Since the spacing between the protrusion of the valve and the side wall of the fluid channel gradually decreases along the axial direction of the linkage rod opening the valve, when the first limit member abuts the second limit member, the distance between the protrusion of the valve and the side wall of the fluid channel is opened to achieve the purpose of regulating the amount of gas. The present invention has a simple structure, low cost, and can accurately achieve the purpose of regulating the amount of gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the gas regulating valve of the present invention;

[0023] Figure 2 1 is a schematic structural diagram of a valve body assembly embodiment 2 of the present invention;

[0024] Figure 3It is a structural schematic diagram of embodiment 3 of the valve body assembly of the present invention.

[0025] Figures: 1. Valve seat; 2. Air inlet; 3. Air outlet; 4. Valve; 5. Adjustment assembly; 6. Drive unit; 7. Cavity; 8. Second limiter; 9. First limiter; 10. First limit hole; 11. Mounting end; 12. Linkage rod; 13. Second limit hole; 14. Bushing; 15. Limit step; 16. Spring; 17. Sleeve; 18. Sealing ring; 19. Valve body; 20. Gas inlet; 21. Center air outlet; 22. First outer ring air outlet; 23. Stop valve; 24. Gas flow channel; 25. Second outer ring air outlet; 26. Control valve; 27. First pipeline; 28. Second pipeline; 29. ​​Third pipeline; 30. Fluid channel; 41. Protrusion; 51. Adjustment valve core; 52. Adjustment coil; 141. Mounting part; 142. Socket part.

[0026] in, Figure 2 、 Figure 3 The arrows in the diagram indicate the direction of gas flow. DETAILED DESCRIPTION

[0027] The accompanying drawings are for illustrative purposes only and are not to be construed as limiting the present invention. To better illustrate the present embodiment, some components in the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will appreciate that some well-known structures and their descriptions may be omitted from the accompanying drawings. The positional relationships depicted in the accompanying drawings are for illustrative purposes only and are not to be construed as limiting the present invention.

[0028] Example 1:

[0029] like Figure 1 As shown, a gas regulating valve 26 includes:

[0030] The valve seat 1 and the valve 4 are formed with an air inlet 2, an air outlet 3, and a fluid channel 30 connecting the air inlet 2 and the air outlet 3. The valve 4 covers the air inlet 2 and is provided with a protrusion 41 located in the fluid channel 30. As the valve 4 faces the air inlet 2, the distance between the protrusion 41 and the side wall of the fluid channel 30 gradually decreases.

[0031] The drive assembly includes a linkage rod 12, a first end of which is connected to the valve 4; a first stopper 9, which is provided at the middle position or the second end of the linkage rod 12; and a drive unit 6, which is provided on the valve seat 1 and is used to drive the linkage rod 12 to move axially along the air inlet 2 to open or close the air inlet 2.

[0032] The second limiting member 8 is provided between the air inlet 2 and the first limiting member 9 and is used to limit the movement of the first limiting member 9 when the valve 4 is opened;

[0033] The adjusting assembly 5 is provided on the valve seat 1 and is used to drive the first limiting member 9 to move relative to the linkage rod 12 to approach or move away from the second limiting member 8 , or to drive the second limiting member 8 to approach or move away from the first limiting member 9 .

[0034] In this embodiment, during use, the adjustment assembly 5 is used to drive the first stopper 9 toward or away from the second stopper 8, or to drive the second stopper 8 toward or away from the first stopper 9, thereby adjusting the distance D between the first stopper 9 and the second stopper 8. Under the action of the drive unit 6, the drive unit 6 drives the linkage rod 12 to move along its axial direction to open the valve 4 to the air inlet 2. Because the distance between the protrusion 41 of the valve 4 and the side wall of the fluid channel 30 gradually decreases along the axial direction of the linkage rod 12 to open the valve 4, when the first stopper 9 abuts the second stopper 8, the distance between the protrusion 41 of the valve 4 and the side wall of the fluid channel 30 is adjusted to achieve the purpose of regulating the gas flow. When the adjustment component 5 makes the distance D between the first limit member 9 and the second limit member 8 larger, in the process of the drive unit 6 driving the linkage rod 12 to open the valve 4, when the first limit member 9 and the second limit member 8 abut against each other, at this time, the opening distance between the protrusion 41 of the valve 4 and the side wall of the fluid channel 30 is larger, and the gas intake amount is also larger.

[0035] In one embodiment, the drive unit 6 is a clutch coil disposed outside the first stopper 9, which is a valve core. The clutch coil is used to magnetically drive the first stopper 9, driving the linkage rod 12 to move axially along the air inlet 2, thereby opening or closing the valve 4. In this embodiment, when the clutch coil is energized, it generates a magnetic field. Under the influence of this magnetic field, the first stopper 9 moves toward the air inlet 2. Because the first stopper 9 is connected to the linkage rod 12, when the first stopper 9 moves, it drives the linkage rod 12 and the valve 4 to open the air inlet 2. When the first stopper 9 abuts the second stopper 8, gas can flow through the air inlet 2 and the fluid channel 30 to the air outlet 3. At this time, the distance between the protrusion 41 of the valve 4 and the inner wall of the fluid channel 30 achieves the purpose of regulating the amount of gas. It should be noted that when the valve 4 moves toward the outside of the air inlet 2, the distance between the protrusion 41 of the valve 4 and the sidewall of the fluid channel 30 gradually increases, thereby gradually increasing the amount of gas entering, achieving the purpose of precise gas regulation. Furthermore, it should be noted that, under the action of the clutch coil, the first stopper 9 moves toward the air inlet 2, eventually contacting the second stopper 8, adjusting the distance D between the first stopper 9 and the second stopper 8, thereby accurately determining the distance between the protrusion 41 of the valve 4 and the sidewall of the fluid channel 30 (this distance is the opening), thereby achieving the purpose of gas flow regulation. It should also be noted that the shape of the protrusion 41 can be conical or trapezoidal, and the fluid channel 30 can be a tubular structure. The cross-sectional area of ​​the protrusion 41 gradually decreases along the air inlet 2 toward the first stopper 9, thereby causing the distance between the protrusion 41 and the sidewall of the fluid channel 30 to gradually increase along the direction from the air inlet 2 to the first stopper 9.

[0036] In one embodiment, the first stopper 9 is threadedly connected to the linkage rod 12, and the adjustment assembly 5 is used to drive the first stopper 9 to rotate and move the first stopper 9 along the linkage rod 12. In this embodiment, the adjustment assembly 5 drives the first stopper 9 to rotate. Since the first stopper 9 is threadedly connected to the linkage rod 12, during the rotation of the first stopper 9, the first stopper 9 moves along the linkage rod 12 to adjust the distance D between the first stopper 9 and the second stopper 8.

[0037] In one embodiment, the adjustment component 5 includes:

[0038] The regulating valve core 51 is provided between the second limiting member 8 and the valve 4, and the second limiting member 8 is provided on the regulating valve core 51. The regulating valve core 51 is formed with a first limiting hole 10 opened along the axial direction of the air inlet 2;

[0039] The linkage rod 12 passes through the first limiting hole 10, and at least a portion of the first limiting member 9 that is threadedly connected to the linkage rod 12 is disposed in the first limiting hole 10. The at least portion can only be slidably disposed in the first limiting hole 10 along the axial direction of the first limiting hole 10.

[0040] The regulating assembly 5 further includes a regulating coil 52 , which is disposed around the outside of the regulating valve core 51 and is used for driving the regulating valve core 51 to rotate by magnetic induction.

[0041] In this embodiment, after the regulating coil 52 is energized, a magnetic field is generated to drive the regulating valve core 51 to rotate. Since a first limiting hole 10 is provided on the regulating valve core 51, at least a portion of the first limiting member 9 and the linkage rod 12 that are threadedly connected are provided in the first limiting hole 10, and the at least portion can only be slidably provided in the first limiting hole 10 along the axial direction of the first limiting hole 10; during the rotation of the regulating valve core 51, the regulating valve core 51 drives the first limiting member 9 to rotate. Since the linkage rod 12 is threadedly connected to the first limiting member 9, when the first limiting member 9 rotates, the first limiting member 9 moves along the linkage rod 12, so that the distance D between the first limiting member 9 and the second limiting member 8 can be adjusted. It should be noted that the cross-section of the first limiting hole 10 can be any of a triangle, a rectangle, or a pentagon. The cross-section of the first limiting hole 10 can also be other cross-sections, provided that at least the portion of the first limiting member 9 threadedly connected to the linkage rod 12 is mounted within the first limiting hole 10. During rotation of the regulating valve core 51, the regulating valve core 51 can drive the first limiting member 9 to rotate and slide along the first limiting hole 10, thereby changing the distance D between the first limiting member 9 and the second limiting member 8. It should also be noted that the portion where the first limiting member 9 threadedly connects to the linkage rod 12 is the mounting end 11, which is mounted within the first limiting hole 10 and slidably connected thereto. Furthermore, it should be noted that the interiors of the regulating coil 52 and the clutch coil together form a cavity 7. The regulating valve core 51 is disposed within this cavity 7 and located inside the regulating coil 52. The first limiting member 9 is disposed within this cavity 7 and located inside the clutch coil.

[0042] In one embodiment, the valve seat 1 is formed with a second limiting hole 13 located between the regulating valve core 51 and the valve 4 and opened axially along the air inlet 2, and the linkage rod 12 is also penetrated by the second limiting hole 13. In this embodiment, when the regulating valve core 51 drives the first limiting member 9 to rotate, since the first limiting member 9 is threadedly connected to the linkage rod 12, in order to prevent the linkage rod 12 from rotating during the rotation of the first limiting member 9, the second limiting hole 13 provided on the valve seat 1 can limit the circumferential rotation of the linkage rod 12, so that the first limiting member 9 moves axially along the linkage rod 12. It should be noted that the cross-section of the second limiting hole 13 is one of a triangle, a rectangle, and a pentagon, and the shape of the linkage rod 12 at the contact point with the second limiting hole 13 is adapted to the second limiting hole 13, so that the linkage rod 12 can be prevented from rotating together with the first limiting member 9.

[0043] In one embodiment, a sleeve 14 is further included. The sleeve 14 includes a mounting portion 141 and a sleeve connection portion 142. The mounting portion 141 is mounted on the valve seat 1. The regulating valve core 51 and the second position limiting member 8 are both sleeved on the outside of the sleeve connection portion 142. The sleeve connection portion 142 is sleeved on at least a portion of the outside of the second position limiting member 8. The sleeve connection portion 142 forms the first position limiting hole 10. In this embodiment, the sleeve connection portion 142 is provided to facilitate the sleeve connection of the regulating valve core 51 and the second position limiting member 8. When the regulating coil 52 drives the regulating valve core 51 to rotate, the regulating valve core 51 rotates with the mounting portion 141 and the sleeve connection portion 142. The sleeve connection portion 142 drives the first position limiting member 9 to rotate and slide along the first position limiting hole 10.

[0044] In one embodiment, a limiting step 15 is protruded from the inner wall of the first limiting hole 10. The limiting step 15 is arranged opposite to the second limiting member 8. A spring 16 is provided in the first limiting hole 10 and is sleeved on the linkage rod 12. One end of the spring 16 abuts against the limiting step 15, and the other end abuts against a portion of the first limiting member 9 located in the first limiting hole 10. In this embodiment, the driving unit 6 drives the first limiting member 9 to move toward the air inlet 2 and open the valve 4. During the movement of the first limiting member 9, the portion of the first limiting member 9 located in the first limiting hole 10 squeezes the spring 16, and the spring 16 is compressed. When the force of the driving unit 6 disappears, the spring 16 recovers its deformation and drives the first limiting member 9 to move away from the air inlet 2. During the movement of the first limiting member 9, it drives the linkage rod 12 and the valve 4 to close the air inlet 2.

[0045] In one embodiment, a sealing member is further provided within the valve seat 1. The sealing member is open at one end near the air inlet 2 and closed at the other end. The second stopper 8, the first stopper 9, and the regulating valve core 51 are mounted within the sealing member; the regulating coil 52 and the clutch coil are mounted on the outer circumference of the sealing member. In this embodiment, the provision of the sealing member facilitates the placement of the second stopper 8 and the first stopper 9 within the sealing member, preventing external interference that could affect the adjustment accuracy of the second stopper 8 and the first stopper 9.

[0046] In one embodiment, a sealing ring 18 is provided on the side of the valve 4 close to the air inlet 2. In this embodiment, when the valve 4 abuts against the air inlet 2, the sealing ring 18 abuts against the air inlet 22, thereby ensuring the sealing between the valve 4 and the air inlet 2 and preventing air leakage.

[0047] Example 2

[0048] like Figure 2 、 Figure 3 As shown, a valve body assembly includes a valve body 19, a gas inlet 20 provided on the valve body 19, a central gas outlet 21, a first outer ring gas outlet 22, and a stop valve 23. A gas flow channel 24 is provided in the valve body 19, connecting the gas inlet 20 with the central gas outlet 21 and the first outer ring gas outlet 22. The stop valve 23 is provided on the side of the gas flow channel 24 near the gas inlet 20. The valve body 19 also includes the gas regulating valve 26 of Example 1. The inlet valve port 2 is connected to the gas flow channel 24, and the outlet valve port 3 is connected to the first outer ring gas outlet 22. In this embodiment, gas enters from the gas inlet 20. When the stop valve 23 is opened, a portion of the gas flows into the central gas outlet 21 through the gas flow channel 24, and the other portion of the gas flows to the first outer ring gas outlet 22 through the gas flow channel 24 and the gas regulating valve 26. It should be noted that under the action of the regulating coil 5, the clutch coil 6, the regulating valve core 8 and the clutch valve core 9, the opening of the valve 4 can be adjusted, thereby adjusting the amount of gas flowing from the gas flow channel 24 to the first outer ring outlet 22.

[0049] In one embodiment, the valve body 19 is further provided with a second outer ring gas outlet 25, and the gas outlet valve port 3 is connected to the second outer ring gas outlet 25. In this embodiment, when gas enters from the gas inlet 20 and the shut-off valve 23 is opened, a portion of the gas flows through the gas flow channel 24 into the central gas outlet 21, while the remaining portion of the gas flows through the gas flow channel 24 and the gas regulating valve 26 to the first outer ring gas outlet 22 and the second outer ring gas outlet 25, respectively. It should be noted that the opening of the valve 4 can be adjusted by the control coil 5, the clutch coil 6, the regulating valve core 8, and the clutch valve core 9, thereby adjusting the amount of gas flowing from the gas flow channel 24 to the first outer ring gas outlet 22 and the second outer ring gas outlet 25. It should be noted that one end of the first pipe 27 is connected to the central gas outlet 21, and the other end is connected to the central flame hole of the gas stove. The central gas outlet 21 is connected to the central flame hole of the gas stove via the first pipe 27. One end of the second pipe 28 is connected to the first outer ring air outlet 22, and the other end is connected to the outer ring main flame hole of the gas stove. The first outer ring air outlet 22 is connected to the outer ring main flame hole of the gas stove through the second pipe 28. One end of the third pipe 29 is connected to the second outer ring air outlet 25, and the other end is connected to the outer ring auxiliary flame hole of the gas stove. The second outer ring air outlet 25 is connected to the outer ring auxiliary flame hole of the gas stove through the third pipe 29.

[0050] Example 3

[0051] like Figure 2 、 Figure 3 As shown, a gas stove includes a stove body (not shown) and the valve body assembly of Example 2. The valve body assembly is mounted on the stove body. The central air outlet 21 is connected to the central flame hole (not shown) provided on the stove body, and the first outer ring air outlet 22 is connected to the outer ring main flame hole (not shown) provided on the stove body. Specifically, the central air outlet 21 is connected to the central flame hole of the gas stove via a first pipe 27, and the first outer ring air outlet 22 is connected to the outer ring main flame hole of the gas stove via a second pipe 28.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0054] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0055] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0056] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0057] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

[0058] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A gas regulating valve, comprising: A valve seat (1) and a valve (4), wherein the valve seat (1) is formed with an air inlet (2), an air outlet (3) and a fluid channel (30) communicating with the air inlet (2) and the air outlet (3), the valve (4) is covered on the air inlet (2), and the valve (4) is provided with a protrusion (41) located in the fluid channel (30), and along the direction in which the valve (4) faces the air inlet (2), the distance between the protrusion (41) and the side wall of the fluid channel (30) gradually decreases; A drive assembly comprises a linkage rod (12), a first end of which is connected to the valve (4); a first position limiting member (9), which is arranged at a middle position or a second end of the linkage rod (12); and a drive unit (6), which is arranged on the valve seat (1) and is used to drive the linkage rod (12) to move along the axial direction of the air inlet (2) so as to open or close the air inlet (2). a second limiting member (8), disposed between the air inlet (2) and the first limiting member (9), and configured to limit the movement of the first limiting member (9) when the valve (4) is opened; An adjusting component (5) is provided on the valve seat (1), and the adjusting component (5) is used to drive the first limiting member (9) to move relative to the linkage rod (12) to move closer to or away from the second limiting member (8). The driving unit (6) is a clutch coil and is arranged around the outside of the first limiting member (9). The first limiting member (9) is a valve core member. The clutch coil is used to magnetically drive the first limiting member (9) to drive the linkage rod (12) to move along the axial direction of the air inlet (2), so that the valve (4) opens or closes the air inlet (2). The first limiting member (9) is threadedly connected to the linkage rod (12), and the adjusting assembly (5) is used to drive the first limiting member (9) to rotate and move the first limiting member (9) along the linkage rod (12); A regulating valve core (51) is provided between the second limiting member (8) and the valve (4), and the second limiting member (8) is provided on the regulating valve core (51), and the regulating valve core (51) is formed with a first limiting hole (10) opened along the axial direction of the air inlet (2); The linkage rod (12) is provided with the first limiting hole (10), and at least a portion of the first limiting member (9) threadedly connected to the linkage rod (12) is provided in the first limiting hole (10), and the at least portion can only be slidably provided in the first limiting hole (10) along the axial direction of the first limiting hole (10); The regulating assembly (5) further comprises a regulating coil (52) which is arranged around the outside of the regulating valve core (51) and is used for magnetic induction driving the regulating valve core (51) to rotate.

2. The gas regulating valve according to claim 1, characterized in that: The valve seat (1) is formed with a second limiting hole (13) located between the regulating valve core (51) and the valve (4) and opened along the axial direction of the air inlet (2), and the linkage rod (12) is also penetrated by the second limiting hole (13).

3. The gas regulating valve according to claim 1, characterized in that: The valve seat (1) further comprises a shaft sleeve (14), wherein the shaft sleeve (14) comprises a mounting portion (141) and a sleeve connection portion (142), wherein the mounting portion (141) is mounted on the valve seat (1), the regulating valve core (51) and the second limiting member (8) are both sleeved on the outside of the sleeve connection portion (142), and the sleeve connection portion (142) is sleeved on at least part of the outside of the first limiting member (9), and the sleeve connection portion (142) forms the first limiting hole (10).

4. The gas regulating valve according to claim 3, characterized in that: A limiting step (15) is convexly provided on the inner wall of the first limiting hole (10), and the limiting step (15) is arranged opposite to the first limiting member (9). A spring (16) sleeved on the linkage rod (12) is provided in the first limiting hole (10), and one end of the spring (16) abuts against the limiting step (15), and the other end abuts against a portion of the first limiting member (9) located in the first limiting hole (10).

5. The gas regulating valve according to claim 1, characterized in that: A sealing member (17) is further provided in the valve seat (1). One end of the sealing member (17) close to the air inlet (2) is in an open structure, and the other end is in a closed structure. The second limiting member (8) and the first limiting member (9) are installed in the sealing member (17); and the regulating coil (52) and the clutch coil are installed on the outer peripheral surface of the sealing member (17).

6. A valve body assembly, characterized in that: The invention comprises a valve body (19), a gas inlet (20) provided on the valve body (19), a central gas outlet (21), a first outer ring gas outlet (22) and a stop valve (23), wherein a gas flow channel (24) is provided in the valve body (19), the gas flow channel (24) connects the gas inlet (20) with the central gas outlet (21) and the first outer ring gas outlet (22), the stop valve (23) is provided on a side of the gas flow channel (24) close to the gas inlet (20), and further comprises a gas regulating valve (26) according to any one of claims 1 to 5, the gas inlet (2) is connected to the gas flow channel (24), and the gas outlet (3) is connected to the first outer ring gas outlet (22).

7. A gas stove, characterized in that: The invention comprises a stove body and a valve body assembly as claimed in claim 6, wherein the valve body assembly is mounted on the stove body, the central air outlet (21) is connected to the central fire hole provided on the stove body, and the first outer ring air outlet (22) is connected to the outer ring main fire hole provided on the stove body.

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