Direct insertion valve and gas stove comprising same

Abstract

The utility model provides a straight inserting valve and a gas stove including the same, the straight inserting valve comprises a valve body and a valve core, the valve body comprises an outer ring gas channel and an inner ring gas channel, the valve core is rotatably arranged in the valve body, the outer circumferential wall of the valve core is provided with an outer ring vent hole group and an inner ring vent hole group, and the outer ring vent hole group and the inner ring vent hole group are communicated with each other. The outer ring vent hole set comprises an annular gradually-shrinking groove formed in the circumferential direction of the valve element, the groove extending direction of the annular gradually-shrinking groove is consistent with the circumferential direction of the valve element, and the groove width of the annular gradually-shrinking groove is gradually reduced in the groove extending direction of the annular gradually-shrinking groove. The outer ring strip-shaped groove is formed in the circumferential direction of the valve element, a round hole penetrating into the valve element inwards is formed in the groove bottom of the outer ring strip-shaped groove, and the outer ring strip-shaped groove and the annular reducing groove are formed in parallel in the axis direction of the valve element. According to the structural arrangement scheme, the probability of accidental flameout or detonation caused by insufficient airflow in the fire adjusting process of a user can be smaller.

Description

Technical Field

[0001] The utility model relates to the field of gas stoves, in particular to a direct-insert valve and a gas stove comprising the direct-insert valve. Background Art

[0002] The plug-in valve is widely used by manufacturers on gas cookers due to its low cost and easy installation. The current plug-in valve body generally includes a valve body and a valve core. The valve core of the valve core is rotatably arranged in the valve body. The axial direction of the valve core is hollow and provided with a ventilation cavity. The ventilation cavity is connected to the air inlet channel of the valve body. A series of ventilation holes of different sizes for connecting the outer ring gas channel and the inner ring gas channel are opened on the outer peripheral wall of the valve core. However, due to the size limitation of the valve core itself, the number and size of the ventilation holes opened on the outer peripheral wall of the valve core are also limited. The adjustable range is small. A series of ventilation holes with different apertures also make the flame of the burner connected to the plug-in valve change quickly, which cannot provide users with convenient wide range, multi-gear and fine firepower adjustment. It is difficult to provide users with scientific and suitable firepower in different cooking scenarios. In complex Chinese cooking, user needs are difficult to be met. In addition, there is lubricating oil on the valve core, and setting a series of ventilation holes with different apertures also increases the probability of clogging of the ventilation holes. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of the direct-insert valve in the prior art that the fire power adjustment is unstable, imprecise and easily clogged by lubricating oil, and to provide a direct-insert valve and a gas stove including the same.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] The utility model provides a straight-insert valve, comprising a valve body and a valve core, the valve body comprising an outer ring gas passage and an inner ring gas passage, the valve core is rotatably arranged in the valve body, and the outer peripheral wall of the valve core is provided with an outer ring vent hole group and an inner ring vent hole group, the outer ring vent hole group comprises: an annular tapered groove arranged along the circumferential direction of the valve core, the groove extension direction of the annular tapered groove is consistent with the circumferential direction of the valve core, and the groove width of the annular tapered groove gradually decreases along the groove extension direction of the annular tapered groove; an outer ring strip groove arranged along the circumferential direction of the valve core, the groove bottom of the outer ring strip groove is provided with a circular hole penetrating inwardly to the inside of the valve core, and the outer ring strip groove and the annular tapered groove are arranged side by side along the axial direction of the valve core.

[0006] In this solution, the above-mentioned structural form is adopted, the outer ring vent group of the valve core includes an outer ring strip groove, the bottom of the outer ring strip groove is provided with a circular hole penetrating into the interior of the valve core, when the valve core rotates in the valve body to the range where the outer ring strip groove and the outer ring gas channel are connected, the outer ring strip groove can keep the outer ring gas channel always at a constant flow rate. At the same time, the valve core is also provided with an annular tapered groove arranged in parallel with the outer ring strip groove, when the valve core rotates to the range of the outer ring strip groove, it also rotates to the range of the annular tapered groove, the gas flow rate of the annular tapered groove flowing into the outer ring gas channel is L1, the diameter of the notch of the annular tapered groove gradually decreases along the groove extension direction of the annular tapered groove, so that the gas flow rate L1 also decreases linearly, the gas flow rate of the gas flow rate flowing into the outer ring gas channel through the outer ring strip groove is L2, and the sum of the gas flow rates flowing into the outer ring gas channel is L1+L2. The combination of the outer ring strip groove and the annular tapered groove makes the gas flow rate of the outer ring gas channel stable and evenly decrease when the valve core rotates to a certain range, and the probability of accidental flameout or explosion due to insufficient airflow during the flame adjustment process is lower. In addition, the combination of the outer ring strip groove and the annular tapered groove also avoids the need to open more vents on the valve core for more precise flame adjustment, reducing the probability of the valve core's lubricating oil clogging the valve core's vents.

[0007] Preferably, the plug-in valve also includes a valve stem, which is inserted into the valve core along the axial direction of the valve core, and can drive the valve core to rotate in the valve body, and one end of the outer ring strip groove extends upward along the axial direction of the valve core to form an L-shaped groove.

[0008] In the present scheme, the above-mentioned structural form is adopted, the valve stem can drive the valve core to rotate in the valve body, and one end of the outer ring strip groove extends upward along the axial direction of the valve core to form an L-shaped groove. In the process of the valve stem pressing down and driving the valve core to rotate in the valve body, there may be a situation where the valve stem fails to press down the valve core into place, resulting in the outer ring strip groove of the valve core and the outer ring gas channel not fitting into place and causing insufficient gas flow. The outer ring strip groove is set as an L-shaped groove to ensure that the outer ring strip groove of the valve core has sufficient area to face the outer ring gas channel when the valve stem fails to press down the valve core into place.

[0009] Preferably, the annular tapered groove is arranged above the outer ring strip groove, and the end of the L-shaped groove extends upward to be flush with the annular tapered groove.

[0010] In this solution, the above-mentioned structural form is adopted, and the annular tapered groove is arranged above the outer annular strip groove to facilitate manufacturing and processing, and convenient hole opening.

[0011] Preferably, the outer ring vent group further includes a first outer ring through hole, the first outer ring through hole and the annular tapered groove are sequentially arranged along the circumferential direction of the valve core, and the annular tapered groove and the first outer ring through hole are connected on the surface of the valve core.

[0012] In this solution, the above-mentioned structural form is adopted, and a first outer ring through hole connected to the annular tapered groove is provided, so that it is convenient to directly punch a hole on the side of the annular tapered groove to connect with the inside of the plug-in valve during manufacturing, thereby improving manufacturing efficiency.

[0013] Preferably, the outer ring vent hole group further includes a second outer ring through hole, the second outer ring through hole and the first outer ring through hole are arranged at intervals along the circumferential direction of the valve core, and the aperture of the second outer ring through hole is larger than that of the first outer ring through hole.

[0014] In this solution, the above-mentioned structural form is adopted, and a second outer ring through hole with a larger aperture than the first outer ring through hole is provided to provide more and stronger fire power levels to meet the diverse needs of users in different cooking scenarios.

[0015] Preferably, the inner ring vent group is arranged below the outer ring vent group, and the inner ring vent group includes a first inner ring strip groove, the groove extension direction of the first inner ring strip groove is consistent with the circumferential direction of the valve core, and a circular hole is arranged at the bottom of the first inner ring strip groove.

[0016] In the present solution, the above-mentioned structural form is adopted, and the inner ring vent hole group includes a first inner ring strip groove and a circular hole is arranged at the bottom of the inner ring strip groove, so that when the valve core rotates to a certain range in the valve body, the inner ring gas channel can always obtain a constant gas flow rate, and it is avoided to open more vent holes on the valve core, thereby reducing the probability of the lubricating oil of the valve core clogging the vent holes of the valve core.

[0017] Preferably, one end of the first inner annular strip groove extends upward along the axial direction of the valve core to form an L-shaped groove, and the upwardly extending end of the first inner annular strip groove is connected to one end of the outer annular strip groove on the surface of the valve core.

[0018] And / or, the inner ring ventilation hole group also includes a first inner ring through hole, the length direction of the first inner ring through hole is consistent with the axial direction of the valve core, a circular hole is arranged at the bottom of the first inner ring through hole, and the first inner ring through hole and the first inner ring strip groove are arranged at intervals along the circumferential direction of the valve core.

[0019] In this solution, the above-mentioned structural form is adopted, one end of the outer ring strip groove extends upward along the axial direction of the valve core to form an L-shaped groove. In the process of the valve stem pressing down and driving the valve core to rotate in the valve body, there may be a situation where the valve stem does not press the valve core in place, resulting in the outer ring strip groove of the valve core not being able to match with the outer ring gas channel and causing insufficient gas flow. The outer ring strip groove is set as an L-shaped groove to ensure that the outer ring strip groove of the valve core has enough area to face the outer ring gas channel when the valve stem does not press the valve core in place. And / or, the inner ring vent group is provided with a first inner ring through hole, which can provide users with gas flow adjustment of different gears. The inner ring vent group also includes a first inner ring through hole and the length direction of the first inner ring through hole is consistent with the axial direction of the valve core. By setting a first inner ring through hole with a certain length, it is ensured that when there is a deviation in the upper and lower positions of the valve core, the gas flow of the inner ring gas channel can always be guaranteed to be stable.

[0020] Preferably, the plug-in valve also includes a valve stem and a gear adjustment plate, the valve stem is arranged above the valve core along the axial direction of the valve core and the valve stem can drive the valve core to rotate in the valve body, and the rotation angle range of the valve core is within 0°-300°.

[0021] In this solution, the above-mentioned structural form is adopted, a valve stem and a gear adjustment plate are provided, the valve stem drives the valve core to rotate in the valve body, the gear adjustment plate and the valve stem cooperate to provide gear adjustment for the plug-in valve, the structure is simple, and the manufacturing is convenient. The rotation angle range of the valve core is within 0°-300°, so as to provide users with a larger adjustment range;

[0022] Preferably, when the rotation angle of the valve core is within the range of 0°-89°, there is stepless adjustment between the valve stem and the gear adjustment plate;

[0023] and / or, when the rotation angle of the valve core is within a range of 50°-70°, the inner ring vent hole group and the inner ring gas channel are in communication;

[0024] And / or, when the rotation angle of the valve core is within the range of 90°-239°, the inner ring vent hole group is connected to the inner ring gas channel, and the outer ring vent hole group is connected to the outer ring gas channel;

[0025] And / or, when the rotation angle of the valve core is within the range of 240°-300°, the inner ring vent hole group and the inner ring gas channel are connected;

[0026] And / or, the plug-in valve further includes an inner ring nozzle and an outer ring nozzle, the inner ring gas channel and the outer ring gas channel are directly connected to the inner ring nozzle and the outer ring nozzle respectively, and the plug-in valve further includes a damper, and the damper is rotatably arranged at one end of the nozzle.

[0027] In this solution, the above-mentioned structural form is adopted. When the rotation angle of the valve core is 60°, the inner ring vent group and the inner ring gas channel are connected, so that the user can quickly obtain a certain fire-keeping flow; when the rotation angle range of the valve core is within 90°-239°, the inner ring vent group and the outer ring vent group are connected to the inner ring gas channel and the outer ring gas channel respectively, and the user can adjust the gas flow of the inner ring gas channel and the outer ring gas channel at the same time within this range; when the rotation angle range of the valve core is within 240°-300°, the inner ring vent group and the inner ring gas channel are connected, which is convenient for the user to adjust the fire in the scene where only the inner ring fire is needed and only cooking is needed. And / or, the inner ring gas channel and the outer ring gas channel are directly connected to the inner ring nozzle and the outer ring nozzle respectively, canceling the setting of the traditional copper gas pipe, and the cost is low; the direct plug valve also includes a damper arranged at one end of the nozzle, which is convenient for the user to rotate the damper to adjust the air inflow speed, improve the gas source adaptability of the valve body and the overall injection performance of the direct plug valve.

[0028] The utility model also provides a gas stove, comprising any one of the above-mentioned direct-insert valves.

[0029] The positive and progressive effect of the utility model is that: in this scheme, the above-mentioned structural form is adopted, the outer ring vent group of the valve core includes an outer ring strip groove, and a circular hole is arranged at the bottom of the outer ring strip groove. When the valve core rotates in the valve body to the range where the outer ring strip groove and the outer ring gas channel are connected, the outer ring strip groove can keep the outer ring gas channel always at a constant flow rate. At the same time, the valve core is also provided with an annular tapered groove arranged in parallel with the outer ring strip groove and connected to the first outer ring through hole. When the valve core rotates to the range of the outer ring strip groove, it is also rotated to the range of the annular tapered groove. The gas flow rate of the annular tapered groove flowing into the outer ring gas channel is L1, and the diameter of the notch of the annular tapered groove gradually decreases in the direction away from the first outer ring through hole, so that the gas flow rate L1 also decreases linearly, and the gas flow rate of the gas flow rate flowing into the outer ring gas channel through the outer ring strip groove is L2, and the sum of the gas flow rates flowing into the outer ring gas channel is L1+L2. The combination of the outer ring strip groove and the annular tapered groove makes the gas flow rate of the outer ring gas channel stable and evenly decrease when the valve core rotates to a certain range, and the probability of accidental flameout or explosion due to insufficient airflow during the flame adjustment process is lower. In addition, the combination of the outer ring strip groove and the annular tapered groove also avoids the need to open more vents on the valve core for more precise flame adjustment, reducing the probability of the valve core's lubricating oil clogging the valve core's vents. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of the valve core of Example 1 of the utility model.

[0031] Figure 2 This is a schematic structural diagram of the valve core of Example 1 of the utility model (II).

[0032] Figure 3 This is a schematic structural diagram of the in-line valve of Example 1 of the utility model.

[0033] Figure 4 This is a structural schematic diagram (II) of the in-line valve of Example 1 of the utility model.

[0034] Figure 5 for Figure 4 Cross-sectional view along AA direction.

[0035] Figure 6 This is a structural schematic diagram (three) of the plug-in valve of Example 1 of the utility model, in which the valve body is hidden.

[0036] Figure 7 This is a schematic structural diagram of the gear adjustment plate of Example 1 of the utility model.

[0037] Figure 8 This is a schematic diagram of the structure of the valve core of Example 2 of the utility model.

[0038] Description of reference numerals:

[0039] Valve body 1

[0040] Outer ring gas channel 11

[0041] Inner ring gas channel 12

[0042] Inner ring nozzle 13

[0043] Outer ring nozzle 14

[0044] Air flap 15

[0045] Spool 2

[0046] Outer ring vent group 21

[0047] Annular tapered groove 211

[0048] Outer ring groove 212

[0049] First outer ring through hole 213

[0050] Second outer ring through hole 214

[0051] Inner ring vent group 22

[0052] First inner ring strip groove 221

[0053] First inner ring through hole 222

[0054] Stem 3

[0055] Gear adjustment plate 4

[0056] Solenoid valve 5

[0057] Micro switch 6 DETAILED DESCRIPTION

[0058] Two preferred embodiments are given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0059] Example 1

[0060] This embodiment provides a gas stove, which includes a plug-in valve for delivering gas to the ejector pipe to supply gas to the burner in the gas stove. Figure 1-Figure 7 As shown, the plug-in valve includes a valve body 1 and a valve core 2, wherein the valve body 1 includes an outer ring gas channel 11 and an inner ring gas channel 12, the valve core 2 is arranged in the valve body 1 and can rotate relative to the valve body 1, and the outer peripheral wall of the valve core 2 is provided with an outer ring vent group 21 for adjusting the gas flow of the outer ring gas channel 11 and an inner ring vent group 22 for adjusting the gas flow of the inner ring gas channel 12, and the interior of the valve core 2 is hollow, which is used to communicate with the air inlet channel of the plug-in valve to achieve the purpose of gas delivery. It should be particularly noted that the specific chamber layout structure in the plug-in valve for realizing the delivery of gas to the ejector pipe is a prior art and will not be described in detail here.

[0061] In this embodiment, the outer ring vent group 21 further includes: an annular tapered groove 211 arranged along the circumferential direction of the valve core 2, the groove extension direction of the annular tapered groove 211 is consistent with the circumferential direction of the valve core 2, and the groove width of the annular tapered groove 211 gradually decreases along the groove extension direction of the annular tapered groove 211; an outer ring strip groove 212 arranged along the circumferential direction of the valve core 2, the groove bottom of the outer ring strip groove 212 is provided with a circular hole penetrating inwardly to the interior of the valve core 2, and the outer ring strip groove 212 and the annular tapered groove 211 are arranged side by side along the axial direction of the valve core 2.

[0062] The outer ring vent group 21 of the valve core 2 includes an outer ring strip groove 212, and a circular hole penetrating into the interior of the valve core 2 is provided at the bottom of the outer ring strip groove 212. When the valve core 2 rotates in the valve body 1 to the range where the outer ring strip groove 212 and the outer ring gas channel 11 are connected, the outer ring strip groove 212 can allow the outer ring gas channel 11 to always maintain a constant flow rate. At the same time, the valve core 2 is also provided with an annular tapered groove 211 arranged in parallel with the outer ring strip groove 212. When the valve core 2 rotates to the range of the outer ring strip groove 212, it also rotates to the range of the annular tapered groove 211. The gas flow rate of the annular tapered groove 211 flowing into the outer ring gas channel 11 is L1. The diameter of the groove opening of the annular tapered groove 211 gradually decreases along the groove extension direction of the annular tapered groove 211, so that the gas flow rate L1 also decreases linearly. Specifically, when the valve core 2 rotates in the valve body 1, the flow rate L1 changes with the rotation angle of the valve core 2 according to the law of L1=a-kx, wherein a and k are constants, x is the rotation angle of the valve core 2, and in the present embodiment, the range of x is 120°-180°. The gas flow rate of the gas flow flowing into the outer ring gas channel 11 through the outer ring strip groove 212 is L2. When the rotation angle of the valve core 2 is in the range of 120°-180°, the sum of the gas flow rates flowing into the outer ring gas channel 11 is L1+L2. The combination of the outer ring strip groove 212 and the annular tapered groove 211 makes the gas flow rate of the outer ring gas channel 11 stable and uniformly decrease when the valve core 2 rotates to a certain range. The probability of accidental flameout or explosion caused by insufficient airflow during the flame adjustment process is lower. Within a certain range, flow regulation with a small power span can be achieved, for example, in the 200-300w gear. In addition, the combination of the outer ring strip groove 212 and the annular tapered groove 211 also avoids opening more vents on the valve core 2 for more precise flame adjustment, reducing the probability of the lubricating oil of the valve core 2 clogging the vents of the valve core 2.

[0063] Specifically in this embodiment, the plug-in valve further includes a valve stem 3, which is inserted into the valve core 2 along the axial direction of the valve core 2, and the valve stem 3 can drive the valve core 2 to rotate in the valve body 1, and one end of the outer ring strip groove 212 extends upward along the axial direction of the valve core 2 to form an L-shaped groove. The valve stem 3 can drive the valve core 2 to rotate in the valve body 1, and one end of the outer ring strip groove 212 extends upward along the axial direction of the valve core 2 to form an L-shaped groove. In the process of the valve stem 3 pressing down and driving the valve core 2 to rotate in the valve body 1, there may be a situation where the valve stem 3 does not press the valve core 2 in place, resulting in the outer ring strip groove 212 of the valve core 2 not fitting in place with the outer ring gas channel 11 and causing insufficient gas flow. The outer ring strip groove 212 is set as an L-shaped groove to ensure that the outer ring strip groove 212 of the valve core 2 has enough area to face the outer ring gas channel 11 when the valve stem 3 does not press the valve core 2 in place.

[0064] The annular tapered groove 211 is arranged above the outer annular strip groove 212 , and the end of the L-shaped groove extends upward to be flush with the annular tapered groove 211 , which is convenient for manufacturing and drilling, and improves manufacturing efficiency.

[0065] The outer ring vent group 21 also includes a first outer ring through hole 213. The first outer ring through hole 213 and the annular tapered groove 211 are sequentially arranged along the circumferential direction of the valve core 2, and the annular tapered groove 211 and the first outer ring through hole 213 are connected on the surface of the valve core 2. By providing the first outer ring through hole 213 connected to the annular tapered groove 211, it is convenient to directly punch a hole on the side of the annular tapered groove 211 to connect with the inside of the plug-in valve during manufacturing and processing, thereby improving manufacturing efficiency. Of course, in other embodiments, it is also possible to choose to open a circular hole at the bottom of the annular tapered groove 211 to connect with the inside of the valve core 2.

[0066] The outer ring vent group 21 also includes a second outer ring through hole 214, which is spaced apart from the first outer ring through hole 213 along the circumferential direction of the valve core 2, and the aperture of the second outer ring through hole 214 is larger than that of the first outer ring through hole 213. By setting the second outer ring through hole 214 with an aperture larger than that of the first outer ring through hole 213, more and stronger firepower gears are provided to meet the diverse needs of users in different cooking scenarios. In this embodiment, the number of the second outer ring through hole 214 is one and is arranged on the side of the first outer ring through hole 213. Of course, in other embodiments, a larger number of second outer ring through holes 214 can be set to provide users with more gears of gas flow regulation. Provide multi-stage stable firepower for Chinese cooking, which is more convenient and worry-free to use.

[0067] The inner ring vent group 22 is arranged below the outer ring vent group 21, and the inner ring vent group 22 includes a first inner ring strip groove 221, the groove extension direction of the first inner ring strip groove 221 is consistent with the circumferential direction of the valve core 2, and a circular hole is arranged at the bottom of the groove of the first inner ring strip groove 221.

[0068] The inner ring vent hole group 22 includes a first inner ring strip groove 221 and a round hole is provided at the bottom of the inner ring strip groove, so that when the valve core 2 rotates to a certain range in the valve body 1, the inner ring gas channel 12 can always obtain a constant gas flow rate, which is convenient for manufacturing and processing and avoids opening more vent holes on the valve core 2, thereby reducing the probability of the lubricating oil of the valve core 2 clogging the vent holes of the valve core 2. Specifically, in this embodiment, when the angle range of the valve core 2 rotation is within 120°-210°, the inner ring gas channel 12 can always obtain a constant gas flow rate L3.

[0069] One end of the first inner ring strip groove 221 extends upward along the axial direction of the valve core 2 to form an L-shaped groove, and the upwardly extending end of the first inner ring strip groove 221 is connected to one end of the outer ring strip groove 212 on the surface of the valve core 2. One end of the outer ring strip groove 212 extends upward along the axial direction of the valve core 2 to form an L-shaped groove. In the process of the valve stem 3 pressing down and driving the valve core 2 to rotate in the valve body 1, there may be a situation where the valve stem 3 does not press down the valve core 2 in place, resulting in the outer ring strip groove 212 of the valve core 2 not fitting in place with the outer ring gas channel 11 and insufficient gas flow. The outer ring strip groove 212 is set as an L-shaped groove to ensure that the outer ring strip groove 212 of the valve core 2 has enough area to face the outer ring gas channel 11 when the valve stem 3 does not press down the valve core 2 in place.

[0070] In this embodiment, the inner ring vent group 22 further includes a first inner ring through hole 222, the length direction of the first inner ring through hole 222 is consistent with the axial direction of the valve core 2, a round hole is provided at the bottom of the first inner ring through hole 222, and the first inner ring through hole 222 and the first inner ring strip groove 221 are arranged at intervals along the circumferential direction of the valve core 2. The inner ring vent group 22 is provided with the first inner ring through hole 222, which can provide users with gas flow adjustment of different gears. The inner ring vent group 22 further includes the first inner ring through hole 222, and the length direction of the first inner ring through hole 222 is consistent with the axial direction of the valve core 2. By providing the first inner ring through hole 222 with a certain length, it is ensured that when there is a deviation in the upper and lower positions of the valve core 2, the gas flow of the inner ring gas channel 12 can always be kept stable.

[0071] Specifically, three first inner ring through holes 222 are arranged in sequence and spaced apart in a direction away from the first inner ring strip groove 221, and the apertures of the circular holes of the three first inner ring through holes 222 gradually decrease in a direction away from the first inner ring strip groove 221. By setting more first inner ring through holes 222, and the apertures of the circular holes of the first inner ring through holes 222 gradually decrease in a direction away from the first inner ring strip groove 221, more gears are provided to the user, and the gas flow rate of the inner ring gas channel 12 is more finely regulated; the first inner ring through hole 222 can be a through hole structure, or a strip arc-shaped notch with a circular hole structure at the bottom of the groove. In this embodiment, three first inner ring through holes 222 are arranged in sequence in a direction away from the first inner ring strip groove 221 as strip arc-shaped notches with a circular hole structure at the bottom of the groove. Of course, in other embodiments, the first inner ring through hole 222 can be set as a through hole structure according to specific gas flow requirements.

[0072] like Figure 3-Figure 7As shown, the plug-in valve also includes a valve stem 3 and a gear adjustment plate 4. The valve stem 3 is arranged above the valve core 2 along the axial direction of the valve core 2 and the valve stem 3 can drive the valve core 2 to rotate in the valve body 1. The rotation angle of the valve stem 3 is consistent with the rotation angle of the valve core 2, and the rotation angle range of the valve core 2 is within 0°-300°. The valve stem 3 and the gear adjustment plate 4 are provided, and the valve stem 3 drives the valve core 2 to rotate in the valve body 1. The gear adjustment plate 4 and the valve stem 3 cooperate to provide gear adjustment for the plug-in valve, which has a simple structure and is easy to manufacture. The rotation angle range of the valve core 2 is within 0°-300°, so as to provide users with a larger adjustment range; specifically, in this embodiment, the plug-in valve also includes a spring, a micro switch 6, a shift fork and a solenoid valve 5, and the valve stem 3 also includes a ejector pin. When the valve stem 3 is pressed down, the spring sheet linked to the valve stem 3 is also pressed down, so that the micro switch 6 on the side is closed, and the ignition circuit is opened; at the same time, the ejector pin on the valve stem 3 also presses against the fork as the valve stem 3 is pressed down, and the fork rotates forward and pushes open the sealing gasket of the electromagnetic valve 5, so that the gas enters the inside of the valve core 2 from the outside of the sealing gasket. This is a prior art and will not be described in detail here.

[0073] Specifically, in this embodiment, if Figure 7 As shown, the structure of the gear adjustment plate 4 is set as follows: (1) When the rotation angle range of the valve core 2 is within 0°-90°, the valve stem 3 and the gear adjustment plate 4 are infinitely adjustable, and no gear is set. Among them, when the rotation angle range of the valve core 2 is within 60°, the inner ring vent group 22 is connected to the inner ring gas channel 12, and the inner ring vent group 22 first discharges gas and delivers gas to the inner ring gas channel 12, providing a flame-keeping flow and a stable gas environment for the inner ring ignition. (2) When the rotation angle of the valve core 2 is within the range of 90°-239°, five gears c are correspondingly set on the gear adjustment plate 4, specifically, a gear c is set every 30° from 90°, the inner ring vent group 22 is connected to the inner ring gas channel 12, and the outer ring vent group 21 is connected to the outer ring gas channel 11. At the same time, the maximum firepower is also set at the gear position of 90°, and the gas flow gradually decreases after 90°. (3) When the rotation angle range of the valve core 2 is within 240°-300°, three gears d are correspondingly set on the gear adjustment plate 4, and only the inner ring vent hole group 22 is connected to the inner ring gas channel 12, and the outer ring vent hole group 21 is not connected to the outer ring gas channel 11. Of course, in other embodiments, different gears can be set according to the needs of specific cooking scenes to adjust and control the rotatable range and the stop position of the valve core 2.

[0074] When the rotation angle of the valve core 2 is 60°, the inner ring air hole group 22 is connected to the inner ring gas channel 12, so that the user can quickly obtain a certain fire-keeping flow rate; when the rotation angle range of the valve core 2 is within 90°-239°, the inner ring air hole group 22 and the outer ring air hole group 21 are respectively connected to the inner ring gas channel 12 and the outer ring gas channel 11, and the user can simultaneously adjust the gas flow of the inner ring gas channel 12 and the outer ring gas channel 11 within this range; when the rotation angle range of the valve core 2 is within 240°-300°, the inner ring air hole group 22 is connected to the inner ring gas channel 12, so that the user can perform fire adjustment operations in a scenario where only the inner ring fire is needed for cooking.

[0075] In addition, in this embodiment, the plug-in valve also includes an inner ring nozzle 13 and an outer ring nozzle 14. The inner ring gas channel 12 and the outer ring gas channel 11 are directly connected to the inner ring nozzle 13 and the outer ring nozzle 14 respectively. The plug-in valve also includes a damper 15, which is rotatably arranged at one end of the nozzle.

[0076] When the valve stem 3 drives the valve core 2 to rotate to a certain gear, the outer ring vent hole group 21 and the inner ring vent hole group 22 on the valve core 2 correspond to the outer ring gas channel 11 and the inner ring gas channel 12 on the valve body, and the gas flows from the outer ring vent hole group 21 and the inner ring vent hole group 22 on the valve core 2 into the outer ring gas channel 11 and the inner ring gas channel 12 on the valve body, and then flows into the outer ring nozzle 14 and the inner ring nozzle 13, thereby realizing the gas flow distribution of the inner ring and the outer ring. This is the prior art and will not be repeated here.

[0077] In this embodiment, the inner ring gas channel 12 and the outer ring gas channel 11 are directly connected to the inner ring nozzle 13 and the outer ring nozzle 14 respectively, eliminating the setting of the traditional copper gas pipe, and the cost is low; the straight-insert valve also includes a damper 15 arranged at one end of the nozzle, which is convenient for the user to rotate the damper 15 to adjust the air inflow speed, thereby improving the gas source adaptability of the valve body 1 and the overall injection performance of the straight-insert valve.

[0078] Example 2

[0079] This embodiment also provides a gas stove, whose structure is substantially the same as that of the gas stove provided in Embodiment 1, except that: Figure 8 As shown, in this embodiment, three first inner ring through holes 222 are sequentially arranged in a direction away from the first inner ring strip groove 221, wherein the first two first inner ring through holes 222 are arc-shaped grooves and a circular hole structure with a smaller diameter is arranged at the bottom of the groove. By setting the third first inner ring through hole 222 as an inwardly penetrating through hole structure, a larger gas flow rate can be obtained.

[0080] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A plug-in valve, comprising a valve body and a valve core, wherein the valve body comprises an outer ring gas channel and an inner ring gas channel, the valve core is rotatably arranged in the valve body, and the outer peripheral wall of the valve core is provided with an outer ring vent hole group and an inner ring vent hole group, characterized in that: The outer ring vent group comprises: An annular tapered groove is arranged along the circumferential direction of the valve core, the groove extension direction of the annular tapered groove is consistent with the circumferential direction of the valve core, and the groove width of the annular tapered groove gradually decreases along the groove extension direction of the annular tapered groove; An outer ring strip groove is arranged along the circumferential direction of the valve core, and a circular hole is arranged at the bottom of the outer ring strip groove and penetrates inwardly to the interior of the valve core, and the outer ring strip groove and the annular tapered groove are arranged side by side along the axial direction of the valve core.

2. The in-line valve according to claim 1, characterized in that: The plug-in valve also includes a valve stem, which is inserted into the valve core along the axial direction of the valve core, and can drive the valve core to rotate within the valve body. One end of the outer ring strip groove extends upward along the axial direction of the valve core to form an L-shaped groove.

3. The in-line valve according to claim 2, characterized in that: The annular tapered groove is arranged above the outer ring strip groove, and the end of the L-shaped groove extends upward to be flush with the annular tapered groove.

4. The in-line valve according to claim 1, characterized in that: The outer ring vent group further includes a first outer ring through hole, the first outer ring through hole and the annular tapered groove are sequentially arranged along the circumferential direction of the valve core, and the annular tapered groove and the first outer ring through hole are connected on the surface of the valve core.

5. The in-line valve according to claim 4, characterized in that: The outer ring vent hole group further includes a second outer ring through hole, the second outer ring through hole and the first outer ring through hole are arranged at intervals along the circumferential direction of the valve core, and the aperture of the second outer ring through hole is larger than that of the first outer ring through hole.

6. The in-line valve according to claim 1, characterized in that: The inner ring vent hole group is arranged below the outer ring vent hole group, and the inner ring vent hole group includes a first inner ring strip groove, the groove extension direction of the first inner ring strip groove is consistent with the circumferential direction of the valve core, and a circular hole is arranged at the bottom of the first inner ring strip groove.

7. The in-line valve according to claim 6, characterized in that: One end of the first inner ring strip groove extends upward along the axial direction of the valve core to form an L-shaped groove, and the upwardly extending end of the first inner ring strip groove is connected to one end of the outer ring strip groove on the surface of the valve core; And / or, the inner ring ventilation hole group also includes a first inner ring through hole, the length direction of the first inner ring through hole is consistent with the axial direction of the valve core, a circular hole is arranged at the bottom of the first inner ring through hole, and the first inner ring through hole and the first inner ring strip groove are arranged at intervals along the circumferential direction of the valve core.

8. The in-line valve according to claim 1, characterized in that: The plug-in valve also includes a valve stem and a gear adjustment plate. The valve stem is arranged above the valve core along the axial direction of the valve core and can drive the valve core to rotate in the valve body. The rotation angle range of the valve core is within 0°-300°.

9. The in-line valve according to claim 8, characterized in that: When the rotation angle of the valve core is within the range of 0°-89°, there is stepless adjustment between the valve stem and the gear adjustment plate; and / or, when the rotation angle of the valve core is within a range of 50°-70°, the inner ring vent hole group and the inner ring gas channel are in communication; And / or, when the rotation angle of the valve core is within the range of 90°-239°, the inner ring vent hole group is connected to the inner ring gas channel, and the outer ring vent hole group is connected to the outer ring gas channel; And / or, when the rotation angle of the valve core is within the range of 240°-300°, the inner ring vent hole group and the inner ring gas channel are connected; And / or, the plug-in valve further includes an inner ring nozzle and an outer ring nozzle, the inner ring gas channel and the outer ring gas channel are directly connected to the inner ring nozzle and the outer ring nozzle respectively, and the plug-in valve further includes a damper, and the damper is rotatably arranged at one end of the nozzle.

10. A gas stove, characterized in that: The gas stove comprises the plug-in valve as described in any one of claims 1-9.

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