Gas valve with adjustable power level

Abstract

The utility model discloses a gas valve of fire grade adjustable, including valve body, the valve body is provided with air inlet channel, air outlet channel, lead -through hole and lead -through cavity, air inlet channel is linked with lead -through cavity, and lead -through hole sets up in the lateral wall of lead -through cavity, and is linked with air outlet channel, valve core, valve core rotatable installation is in lead -through cavity, valve core is provided with a plurality of adjusting holes, and one adjusting hole is used to correspond with lead -through hole after the rotation of valve core and is linked, valve rod, valve rod is connected in valve core, and can move up and down along the axial direction of valve core, adjusting assembly, including adjusting sleeve and locating rod, adjusting sleeve is sleeved in the outside of valve core, and is fixedly connected with valve core, and the outer peripheral wall of adjusting sleeve is provided with a plurality of locating parts, and locating rod is connected with valve body through first elastic component, the utility model discloses setting adjusting sleeve on valve core, and the locating cooperation of locating part on adjusting sleeve and locating rod on valve body, and locating rod is positioned with corresponding locating part positioning cooperation when valve core rotates a gear position, and the adjustment is controllable.

Description

Technical Field

[0001] This utility model relates to the field of gas valve technology, and in particular to a gas valve with adjustable firepower levels. Background Technology

[0002] The gas valve is the core control component of a gas stove. It is usually equipped with an inlet channel and an outlet channel. The inlet channel introduces gas, and the outlet channel is connected to the gas stove. The valve core and valve stem of the gas valve control the flow of gas.

[0003] To accommodate varying heat levels required by the gas stove, the gas flow rate needs to be adjusted via the gas valve. However, current gas valve adjustments are typically made by rotating a valve stem, which in turn moves the valve core to switch between different gas flow rates. During this adjustment process, the user must visually observe the setting, which can easily lead to either excessive or insufficient gas flow. This necessitates repeated adjustments to obtain the appropriate gas volume, resulting in low gas regulation efficiency. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art, the present invention provides a gas valve with adjustable firepower levels. It can be adjusted by setting an adjusting sleeve on the valve core, so that the positioning part on the adjusting sleeve is positioned and engaged with the positioning rod on the valve body. Each time the valve core rotates to a different level, the positioning rod is positioned and engaged with the corresponding positioning part, and the adjustment is controllable.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A gas valve with adjustable firepower levels, comprising:

[0007] The valve body is provided with an air inlet channel, an air outlet channel, a through hole, and a through cavity; the air inlet channel communicates with the through cavity, and the through hole is disposed on the side wall of the through cavity and communicates with the air outlet channel;

[0008] A valve core is rotatably mounted in the conduction cavity; the valve core is provided with a plurality of adjustment holes, which are spaced apart in the circumferential direction of the valve core, and one of the adjustment holes is used to communicate with the conduction hole after the valve core is rotated;

[0009] A valve stem, which passes through the valve core and can move up and down along the axial direction of the valve core;

[0010] An adjusting assembly includes an adjusting sleeve and a positioning rod. The adjusting sleeve is fitted onto the outside of the valve core and is fixedly connected to the valve core. The outer peripheral wall of the adjusting sleeve is provided with a plurality of positioning portions, which are distributed in the circumferential direction of the adjusting sleeve. The positioning rod is connected to the valve body through a first elastic member, which provides an elastic stress that drives the positioning rod to move toward the adjusting sleeve so that the positioning rod engages with the positioning portion.

[0011] As an optional implementation, the positioning part includes positioning grooves, and a plurality of positioning grooves are continuously distributed in the circumferential direction of the adjusting sleeve and are connected to each other.

[0012] As an optional implementation, the positioning groove is an arc-shaped groove.

[0013] As an optional implementation method,

[0014] The valve core is provided with a first connecting part;

[0015] The adjusting assembly further includes an adjusting rod connected to the valve stem. The adjusting rod is provided with a second connecting portion, which is connected to the first connecting portion so that the adjusting rod drives the valve core to rotate when subjected to force. The second connecting portion and the first connecting portion slide in cooperation along the axial direction of the valve core.

[0016] As an optional implementation, the adjusting rod is provided with a snap-fit ​​block, and the side wall of the valve core is provided with a snap-fit ​​interface. The snap-fit ​​block snaps into the snap-fit ​​interface and slides in cooperation with the snap-fit ​​interface.

[0017] As an optional implementation, the valve core is provided with a partition plate, a first cavity section, and a second cavity section, with the partition plate disposed between the first cavity section and the second cavity section; the valve stem passes through the partition plate via the first cavity section and extends out from the second cavity section; the first cavity section is provided with a second elastic member, which is used to provide an elastic stress that drives the valve stem to move upward; the adjusting rod is fitted onto the top end of the valve stem.

[0018] As an optional implementation, the top end of the adjusting rod extends through the top end of the valve body and forms an adjusting section; the adjusting section is provided with an adjusting recess.

[0019] As an optional implementation, the gas valve further includes a valve cover, which is connected to the valve body and seals the top of the conduction cavity; the valve cover has a cavity inside.

[0020] The top end of the valve core extends through the conduction cavity into the cavity and forms a positioning end; the adjusting sleeve is fitted outside the positioning end; the positioning rod is connected to the valve cover through the first elastic component.

[0021] As an optional implementation, the side wall of the valve cover is provided with a through-channel, the first elastic member is connected to the through-channel, one end of the positioning rod is movably connected to the through-channel and connected to the first elastic member, and the other end of the positioning rod extends out from the through-channel and cooperates with the positioning part.

[0022] As an optional implementation, the valve body is provided with a first diversion channel, a second diversion channel, and a guide channel. A plug is provided in the second diversion channel, and the bottom end of the plug is spaced apart from the bottom end of the second diversion channel to form a gas guiding interval. One end of the first diversion channel is connected to the guiding cavity, and the other end of the first diversion channel is connected to the gas guiding interval. One end of the gas guiding interval is connected to one end of the guide channel, and the other end of the guide channel is connected to the air outlet channel.

[0023] In summary, this utility model has the following technical effects:

[0024] During adjustment, the positioning rod is elastically engaged with the positioning part on the adjusting sleeve by the elastic stress provided by the elastic component. When the adjusting sleeve is rotated to a position under force, the elastic component can be compressed under the rotational force. When the adjusting sleeve rotates to the next position, the positioning rod resets under the elastic stress and abuts against the next positioning part. In this way, the positioning rod can rotate to the next positioning part for engagement and abutment each time the adjusting sleeve rotates to a position. Each rotation of the firepower adjustment involves the positioning rod and the positioning part positioning and cooperating. That is to say, every time the valve core rotates to a position, the positioning rod is positioned and cooperating with the corresponding positioning part, and the amount of gas adjustment is controllable. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a cross-sectional view of the gas valve of this utility model;

[0027] Figure 2 This is a schematic diagram of the overall structure of the gas valve of this utility model;

[0028] Figure 3This is a schematic diagram of the overall structure of the gas valve of this utility model from another perspective;

[0029] Figure 4 This is a cross-sectional view of the gas valve of this utility model from another perspective;

[0030] Figure 5 This is a schematic diagram of the valve core, valve stem, and regulating assembly of this utility model;

[0031] Figure 6 This is a schematic diagram of the valve core, valve stem, and regulating assembly from another perspective.

[0032] Figure 7 This is a schematic diagram of the valve core and regulating assembly of this utility model;

[0033] Figure 8 This is an exploded structural diagram of the valve core and regulating assembly of this utility model;

[0034] Figure 9 This is a schematic diagram of the valve body of this utility model;

[0035] Figure 10 This is a schematic diagram of the valve body of this utility model from another perspective.

[0036] The meanings of the reference numerals in the attached drawings are as follows: 10, valve body; 11, valve cover; 111, cavity; 12, air intake channel; 13, primary air intake channel; 14, first diversion channel; 15, second diversion channel; 16, plug head; 17, guide cavity; 171, guide hole; 18, guide channel; 20, valve stem; 30, valve core; 31, adjusting hole; 32, first cavity section; 33, second cavity section; 34, partition plate; 35, snap-fit ​​interface; 36, second elastic component; 41, adjusting sleeve; 411, positioning groove; 42, positioning rod; 43, first elastic component; 44, adjusting rod; 441, snap-fit ​​block; 442, adjusting recess. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0039] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0040] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0041] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0042] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0043] See Figures 1-10This utility model discloses a gas valve with adjustable firepower, including a valve body 10, a valve core 30, a valve stem 20, and an adjustment assembly. The valve body 10 is provided with an air inlet channel 12, an air outlet channel, a through hole 171, and a through cavity 17. The air inlet channel 12 is connected to the through cavity 17. The through hole 171 is provided on the side wall of the through cavity 17 and is connected to the air outlet channel. The valve core 30 is rotatably mounted in the conduction cavity 17. The valve core 30 is provided with multiple adjustment holes 31, which are spaced apart in the circumferential direction of the valve core 30. The diameter of each adjustment hole 31 is different. Specifically, the diameter of the multiple adjustment holes 31 can gradually increase or gradually decrease in the rotation direction of the valve core 30. When the valve core 30 rotates, one of the adjustment holes 31 is used to connect with the conduction hole 171 after the valve core 30 rotates. During the gradual rotation, the connection between the adjustment holes 31 with different diameters and the conduction hole 171 can make the air volume in the air outlet channel different.

[0044] The valve stem 20 is inserted into the valve core 30, and the valve stem 20 can move up and down along the axial direction of the valve core 30. When the valve stem 20 moves downward, it can touch the switch to control the opening of the solenoid valve on the valve body 10 and start the air intake action.

[0045] The adjusting assembly includes an adjusting sleeve 41 and a positioning rod 42. The adjusting sleeve 41 is fitted onto the outside of the valve core 30 and fixedly connected to the valve core 30. Multiple positioning portions are provided on the outer peripheral wall of the adjusting sleeve 41, and these positioning portions are distributed circumferentially on the adjusting sleeve 41. The positioning rod 42 is connected to the valve body 10 via a first elastic member 43. The first elastic member 43 provides elastic stress, which drives the positioning rod 42 to move towards the adjusting sleeve 41, thereby engaging the positioning portion with the positioning stress.

[0046] Based on the above structure, when using the gas valve with adjustable firepower of this utility model, the gas inlet pipe can be connected to the gas circuit. When the gas valve is opened, by pressing the valve stem 20 of the valve body 10, the valve stem 20 can move downward relative to the valve core 30 after being pressed, thus opening the gas valve. Then, the gas circuit introduces gas into the gas inlet channel 12, and guides it to the connecting cavity 17 through the gas inlet channel 12. The gas in the connecting cavity 17 can enter the gas outlet channel through the connecting hole 171, and then be discharged to the gas stove for use through the gas outlet channel.

[0047] When adjusting the gas level, rotating the adjusting sleeve 41 causes the valve core 30 to rotate. As the valve core 30 rotates, different adjusting holes 31 on it correspond to the through holes 171. When the diameter of the adjusting hole 31 is smaller, the gas exiting the through cavity 17 via the valve core 30 enters the through hole 171 through the smaller diameter adjusting hole 31 and is then exited through the through hole 171 to the gas outlet channel. In this case, the amount of gas exited is smaller, and the gas stove's flame is weaker. Conversely, when the diameter of the adjusting hole 31 is larger, the gas exiting the through cavity 17 via the valve core 30 enters the through hole 171 through the larger diameter adjusting hole 31 and is then exited through the through hole 171 to the gas outlet channel. In this case, the amount of gas exited is larger, and the gas stove's flame is stronger.

[0048] It should be noted that, since the adjustment holes 31 of different diameters on the valve core 30 gradually change in the direction of rotation of the valve core 30, when the adjustment sleeve 41 is rotated, the different diameters of the valve core 30 can correspond to the through holes 171, thereby adjusting the amount of gas. During the adjustment process, since the positioning rod 42 is elastically engaged with the positioning part on the adjustment sleeve 41 by the elastic stress provided by the elastic component, when the adjustment sleeve 41 is rotated to a position under force, the elastic component can be compressed under the action of rotational force. When the adjustment sleeve 41 is rotated to the next position, the positioning rod 42 is reset under the action of elastic stress and abuts against the next positioning part. In this way, every time the adjustment sleeve 41 is rotated to a position, the positioning rod 42 can be rotated to the next positioning part for engagement. Each rotation adjustment of the firepower involves the positioning rod 42 and the positioning part in a positioning engagement. That is to say, every time the valve core 30 is rotated to a position, the positioning rod 42 is engaged with the corresponding positioning part, and the amount of gas adjustment is controllable.

[0049] As an optional implementation, the positioning part includes a positioning groove 411. Multiple positioning grooves 411 are continuously distributed in the circumferential direction of the adjusting sleeve 41 and are connected to each other. When the adjusting sleeve 41 is rotated to one position, the positioning rod 42 can slide from one of the positioning grooves 411 to another adjacent positioning groove 411 to achieve positioning engagement. Since the positioning groove 411 has a certain positioning depth on the adjusting sleeve 41, only when the adjusting sleeve 41 is rotated under the action of external force can the external force overcome the elastic stress of the first elastic component 43, drive the positioning rod 42 to rotate out of the corresponding positioning groove 411, and then engage with another positioning groove 411 to achieve accurate positioning.

[0050] Furthermore, without external force adjustment, the positioning rod 42 is less likely to detach from the positioning groove 411, making the positioning structure more stable.

[0051] As an optional implementation, the positioning groove 411 is an arc-shaped groove. When the adjusting sleeve 41 rotates, the positioning rod 42 slides against the arc surface of the positioning groove 411, making the rotation of the adjusting sleeve 41 smoother. The rotation adjustment of the valve core 30 is also smoother and less prone to jamming.

[0052] As an optional implementation, the valve core 30 is provided with a first connecting part, and the above-mentioned adjusting assembly further includes an adjusting rod 44, which is connected to the valve stem 20. The adjusting rod 44 is provided with a second connecting part, which is connected to the first connecting part so that the adjusting rod 44 drives the valve core 30 to rotate when subjected to force; the second connecting part and the first connecting part slide in cooperation along the axial direction of the valve core 30.

[0053] Based on this structure, when adjusting the valve core 30, since the adjusting rod 44 is slidably engaged with the first connecting part of the valve core 30 through the second connecting part, when starting the gas valve, the adjusting rod 44 can be pressed, and the adjusting rod 44 can drive the valve stem 20 to move downward after being pressed. At this time, the downward movement of the valve stem 20 is guided by the sliding engagement between the second connecting part and the first connecting part, that is, the downward sliding state of the valve stem 20 is stable, reducing the offset state of the valve stem 20 when starting the gas valve.

[0054] When adjusting the gas volume, the adjusting rod 44 is rotated. The second connecting part of the adjusting rod 44 and the first connecting part of the valve core 30 only have a sliding tendency to slide up and down. Therefore, when the adjusting rod 44 rotates, the relative rotation between the adjusting rod 44 and the valve core 30 is restricted by the second connecting part and the first connecting part. The adjusting rod 44 can then drive the valve core 30 to rotate together, so that the different adjusting holes 31 of the valve core 30 correspond to the positions of the guiding holes 171 of the guiding cavity 17.

[0055] It should be noted that during assembly, the adjusting rod 44 can extend out of the valve body 10, allowing the user to make adjustments from outside the valve body 10, which is convenient for the user to operate.

[0056] Furthermore, a snap-fit ​​block 441 can be provided on the adjusting rod 44, and a snap-fit ​​interface 35 can be provided on the side wall of the valve core 30. The snap-fit ​​block 441 snaps into the snap-fit ​​interface 35 and slides with the snap-fit ​​interface 35. In this way, the sliding assembly of the adjusting rod 44 and the valve core 30 can be achieved through the assembly of the snap-fit ​​block 441 and the snap-fit ​​interface 35. The snap-fit ​​block 441 and the snap-fit ​​interface 35 only have the tendency to slide up and down, and the rotational movement is restricted. Therefore, when the adjusting rod 44 is pressed, it can drive the valve stem 20 up and down, and when the adjusting rod 44 is rotated by an external force, it can also drive the valve core 30 to rotate.

[0057] Based on this structure, the first connecting part includes a card interface 35, while the second connecting part includes a card block 441.

[0058] In other implementations, the first connecting part may also include a slotted hole, and the corresponding second connecting part may include a sliding rod, so as to guide the up and down movement of the adjusting rod 44 and the valve rod 20 by sliding the sliding rod and the slotted hole.

[0059] As an optional implementation, the valve core 30 is provided with a partition plate 34, a first cavity section 32, and a second cavity section 33. The partition plate 34 is located between the first cavity section 32 and the second cavity section 33, so that the valve stem 20 passes through the partition plate via the first cavity section 32 and extends out of the second cavity section 33. The first cavity section 32 is provided with two elastic components, and the second elastic component 36 is used to provide an elastic stress that drives the valve stem 20 to move upward. Based on this structure, the aforementioned plurality of adjusting holes 31 are provided on the side wall of the second cavity section 33. The adjusting rod 44 is fitted onto the top end of the valve stem 20 and extends out of the valve body 10.

[0060] To facilitate timely reset of the valve stem 20 after it triggers the gas valve by moving downwards, a second elastic component 36 can be provided inside the valve core 30. The second elastic component 36 is located inside the first cavity section 32 and is clamped between the bottom end of the adjusting rod 44 and the partition plate 34. In this way, after the adjusting rod 44 is pressed and drives the valve stem 20 to move downwards, the second elastic component 36 can be compressed. After the valve stem 20 completes its triggering action, the second elastic component 36 can be reset.

[0061] It should be noted that, since the first chamber 32 and the second chamber 33 are separated by the partition plate 34, the gas can enter the second chamber 33 of the valve core 30 after being introduced into the conduction chamber 17. When the valve core 30 rotates, the different adjustment holes 31 on the side wall of the second chamber 33 can be connected to the conduction holes 171 to adjust the gas flow. Furthermore, the partition plate 34 separates the first chamber 32 (used for assembling the second elastic component 36) from the second chamber 33 (used for gas conduction), ensuring that the gas flow is not interfered with by the second elastic component 36, thus reducing flow instability caused by the assembly of internal parts of the valve core 30.

[0062] To reduce the risk of gas overflow from the second chamber at the joint between the valve stem and the partition plate, a sealing ring structure can be installed above the partition plate. That is, the sealing ring is placed inside the first chamber and fitted onto the outer wall of the valve stem to prevent gas from overflowing from the second chamber through the assembly gap.

[0063] As an optional implementation, the top end of the aforementioned adjusting rod 44 extends through the top end of the valve body 10 to form an adjusting section, and an adjusting recess 442 can be provided on the adjusting section. Thus, since the top end of the adjusting rod 44 extends through the top end of the valve body 10, the user can operate it directly above the gas valve, making operation convenient. Furthermore, since the adjusting section is provided with the adjusting recess 442, which can be formed by a flat surface or an arc-shaped recess, the user can rotate the adjusting section by holding the adjusting recess 442, thus reducing the likelihood of slippage.

[0064] As an optional implementation, the gas valve also includes a valve cover 11, which is connected to the valve body 10 and covers the top of the conduction cavity 17. Specifically, the connection between the valve cover 11 and the valve body 10 can be assembled by screws, bolts or other structures.

[0065] A cavity 111 is provided inside the valve cover 11. The top end of the valve core 30 extends through the guide cavity 17 into the cavity 111 and forms a positioning end. The adjusting sleeve 41 is fitted onto the outside of the positioning end. The positioning rod 42 is connected to the valve cover 11 through the first elastic member 43. Based on this, when the valve cover 11 is assembled to the valve body 10, the cavity 111 of the valve cover 11 can provide space for the top end of the valve core 30 to be assembled. In this way, the adjusting sleeve 41 can be assembled to the top end of the valve core 30 before the valve cover 11 is assembled to the valve body 10, which facilitates the assembly and disassembly of the gas valve core 30, valve stem 20 and adjusting components.

[0066] Of course, since the adjusting sleeve 41 is fitted onto the top of the valve core 30, the positioning rod 42 can be assembled using the valve cover 11 as the assembly base. When assembling the positioning rod 42, the positioning rod 42 can be connected to the valve cover 11 through the first elastic component 43. After the adjusting sleeve 41 and the valve core 30 are assembled, the valve cover 11 is sealed above the guide cavity 17 of the valve body 10, so that the positioning rod 42 and one of the positioning parts of the adjusting sleeve 41 are positioned and abutted.

[0067] Specifically, a through-channel is provided on the side wall of the valve cover 11. The first elastic component 43 is connected to the through-channel. One end of the positioning rod 42 is movably connected to the through-channel and connected to the first elastic component 43. The other end of the positioning rod 42 extends out from the through-channel and cooperates with the positioning part. In this way, the first elastic component 43 and the positioning rod 42 can be installed based on the through-channel on the valve cover 11. The elastic stress provided by the first elastic component 43 can enable the positioning rod 42 to move stably toward the positioning part. The through-channel guides the axial movement of the positioning rod 42 itself. The movement process is stable and the positioning position is accurate.

[0068] Of course, based on the structure with a valve cover and an adjusting rod, the top of the adjusting rod can pass through the cavity of the valve cover and extend out from the top of the valve cover, making it convenient for the user to operate.

[0069] As an optional implementation, the valve body 10 may also include a first diversion channel 14, a second diversion channel 15, and a guide channel 18. A plug 16 is provided within the second diversion channel 15, with the bottom end of the plug 16 spaced from the bottom end of the second diversion channel 15, forming a gas-guiding gap. Based on this structure, one end of the first diversion channel 14 is connected to the guiding cavity 17, and the other end of the first diversion channel 14 is connected to the gas-guiding gap. One end of the gas-guiding gap is connected to one end of the guide channel 18, and the other end of the guide channel 18 is connected to the outlet channel.

[0070] In actual use, the fuel can be either natural gas or liquefied petroleum gas (LPG). Natural gas and LPG have different pressures during operation; LPG operates at a higher pressure. Therefore, under the same thermal power, the corresponding air intake of each adjustment port 31 of the valve core 30 can maintain normal operating power under the pressure of LPG. However, when using natural gas, because its pressure is lower, adjusting the heat output requires increasing the number of channels to achieve the same thermal power.

[0071] Therefore, in this embodiment, when the gas pressure is low, even if the valve core 30 is rotated to the maximum diameter adjustment hole 31 corresponding to the guide hole 171 of the guide cavity 17, the gas pressure is insufficient, and the firepower generated after the gas is discharged into the gas stove is still insufficient. Therefore, the gas in the guide cavity 17 can enter the gas guide interval of the second guide channel 15 through the first diversion channel 14, and the gas in the gas guide interval can enter the gas outlet channel through the guide channel 18 to achieve gas replenishment, so that the multiple adjustment holes 31 of the valve core 30 can be adapted to different types of gas operation.

[0072] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A gas valve with adjustable firepower levels, characterized in that, include, The valve body is provided with an air inlet channel, an air outlet channel, a through hole, and a through cavity; The air intake channel is connected to the guiding cavity, and the guiding hole is disposed on the side wall of the guiding cavity and is connected to the air outlet channel; A valve core is rotatably mounted in the conduction cavity; the valve core is provided with a plurality of adjustment holes, which are spaced apart in the circumferential direction of the valve core, and one of the adjustment holes is used to communicate with the conduction hole after the valve core is rotated; A valve stem, which passes through the valve core and can move up and down along the axial direction of the valve core; An adjusting assembly includes an adjusting sleeve and a positioning rod. The adjusting sleeve is fitted onto the outside of the valve core and is fixedly connected to the valve core. The outer peripheral wall of the adjusting sleeve is provided with a plurality of positioning portions, which are distributed in the circumferential direction of the adjusting sleeve. The positioning rod is connected to the valve body through a first elastic member, which provides an elastic stress that drives the positioning rod to move toward the adjusting sleeve so that the positioning rod engages with the positioning portion.

2. The gas valve with adjustable firepower according to claim 1, characterized in that, The positioning part includes positioning grooves, and a plurality of positioning grooves are continuously distributed in the circumferential direction of the adjusting sleeve and are connected to each other.

3. The gas valve with adjustable firepower according to claim 2, characterized in that, The positioning groove is an arc-shaped groove.

4. The gas valve with adjustable firepower according to claim 1, characterized in that, The valve core is provided with a first connecting part; The adjusting assembly further includes an adjusting rod connected to the valve stem. The adjusting rod is provided with a second connecting portion, which is connected to the first connecting portion so that the adjusting rod drives the valve core to rotate when subjected to force. The second connecting portion and the first connecting portion slide in cooperation along the axial direction of the valve core.

5. The gas valve with adjustable firepower according to claim 4, characterized in that, The adjusting rod is provided with a snap-fit ​​block, and the side wall of the valve core is provided with a snap-fit ​​interface. The snap-fit ​​block snaps into the snap-fit ​​interface and slides in cooperation with the snap-fit ​​interface.

6. The gas valve with adjustable firepower according to claim 4, characterized in that, The valve core is provided with a partition plate, a first cavity section, and a second cavity section, with the partition plate located between the first and second cavity sections; the valve stem passes through the partition plate via the first cavity section and extends out from the second cavity section; the first cavity section is provided with a second elastic component, which provides an elastic stress to drive the valve stem upward; a plurality of adjustment holes are provided on the side wall of the second cavity section; the adjustment rod is fitted onto the top end of the valve stem.

7. The gas valve with adjustable firepower according to claim 4, characterized in that, The top end of the adjusting rod passes through the top end of the valve body and forms an adjusting section; the adjusting section is provided with an adjusting recess.

8. The gas valve with adjustable firepower according to any one of claims 1-7, characterized in that, The gas valve also includes a valve cover, which is connected to the valve body and seals the top of the conduction cavity; the valve cover has a cavity inside. The top end of the valve core extends through the conduction cavity into the cavity and forms a positioning end; the adjusting sleeve is fitted outside the positioning end; the positioning rod is connected to the valve cover through the first elastic component.

9. The gas valve with adjustable firepower according to claim 8, characterized in that, The valve cover has a through-channel on its side wall. The first elastic component is connected to the through-channel. One end of the positioning rod is movably connected to the through-channel and connected to the first elastic component. The other end of the positioning rod extends out from the through-channel and cooperates with the positioning part.

10. The gas valve with adjustable firepower according to any one of claims 1-7, characterized in that, The valve body is provided with a first diversion channel, a second diversion channel and a guide channel. A plug is provided in the second diversion channel. The bottom end of the plug is spaced apart from the bottom end of the second diversion channel to form an air guide gap. One end of the first diversion channel is connected to the conduction cavity, and the other end of the first diversion channel is connected to the air guide interval. One end of the air guide interval is connected to one end of the guide channel, and the other end of the guide channel is connected to the air outlet channel.

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