Plug valve plug and plug valve having the same, gas appliance

Abstract

The application discloses a valve core for a plug valve, and a plug valve and a gas appliance with the same. The valve core is rotatably installed in the plug valve, and an air inlet channel is formed in the valve core. A first air outlet channel is formed on the outer peripheral wall of the valve core, and the first air outlet channel comprises a first through hole and a first groove. The first through hole is used for connecting the air inlet channel and the first groove. The first groove extends along the circumference of the valve core, and has a first end portion and a second end portion in the circumferential direction. The first through hole is located between the first end portion and the second end portion. The groove depth of the first end portion and / or the second end portion gradually increases in the direction towards the first through hole. According to the valve core for the plug valve, the groove depth of the first end portion and the second end portion of the first groove gradually increases in the direction towards the first through hole, and the first through hole is located between the first end portion and the second end portion, so that the linear control of the gas passing amount of the plug valve can be facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of household appliances, in particular to a valve core for a plug valve and a plug valve and a gas appliance having the same. BACKGROUND

[0002] The gas valve is the core component of the household gas stove, mainly for sealing, adjusting the gas firepower and igniting, etc. The quality of the gas valve determines the quality of the stove. The existing valve core cannot effectively adjust the firepower size smoothly according to the actual demand, and cannot meet the user's cooking demand. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to provide a valve core for a plug valve, which can better linearly control the gas passing amount of the plug valve, thereby better meeting the user's cooking demand.

[0004] The present application further provides a plug valve having the valve core.

[0005] The present application further provides a gas appliance having the plug valve.

[0006] According to the valve core for a plug valve according to the first aspect of the present application, the valve core is rotatably installed in the plug valve, an air inlet channel is formed in the valve core, a first air outlet channel is formed on the outer peripheral wall of the valve core, the first air outlet channel includes a first through hole and a first groove, the first through hole is used to connect the air inlet channel and the first groove, the first groove extends along the circumference of the valve core and has a first end portion and a second end portion in the circumferential direction, the first through hole is located between the first end portion and the second end portion, and the groove depth of the first end portion and / or the second end portion gradually increases in the direction towards the first through hole.

[0007] According to the valve core for a plug valve according to the embodiment of the present application, by arranging the first groove around the valve core in the horizontal direction, the height of the valve core can be reduced, thereby facilitating the ultra-thin design of the plug valve. In addition, by gradually increasing the groove depth of the first end portion and the second end portion of the first groove in the direction towards the first through hole and arranging the first through hole between the first end portion and the second end portion, the gas passing amount of the plug valve can be linearly controlled.

[0008] In addition, the valve core for a plug valve according to the present application further has the following additional technical features:

[0009] In some embodiments of the present application, the distance between the first end portion and the first through hole is greater than the distance between the second end portion and the first through hole, and the first gas outlet channel further comprises a first cut groove, which is located between the first end portion and the first through hole, and the groove depth of the first cut groove gradually increases in the direction from the first end portion to the first through hole.

[0010] Optionally, the groove width of the first cut groove is less than the groove width of the first groove.

[0011] In some embodiments of the present application, a second gas outlet channel is further formed on the outer peripheral wall of the valve core, the second gas outlet channel comprises a second through hole and a second groove, the second through hole is used for connecting the air inlet channel and the second groove, the second groove extends along the circumference of the valve core, and is spaced from the first groove in the axial direction of the valve core.

[0012] Optionally, in the circumferential direction, the second groove has a third end portion and a fourth end portion, the second through hole is located between the third end portion and the fourth end portion, and the groove depth of the third end portion and / or the fourth end portion gradually increases in the direction towards the second through hole.

[0013] Optionally, the distance between the third end portion and the second through hole is greater than the distance between the fourth end portion and the second through hole, and the second gas outlet channel further comprises a second cut groove, which is located between the third end portion and the second through hole, and the groove depth of the second cut groove gradually increases in the direction from the third end portion to the second through hole.

[0014] Optionally, the groove width of the second cut groove is less than the groove width of the second groove.

[0015] Optionally, the second groove is connected with a small fire ejector tube, and the second gas outlet channel further comprises a micro fire hole, which is spaced from the second groove in the circumferential direction.

[0016] The present application further provides a plug valve with the valve core of the above-mentioned embodiments.

[0017] According to the second aspect of the embodiments of the present application, the plug valve comprises a valve body and a valve core, and the valve core is arranged in the valve body. Specifically, the valve body has a valve core accommodating cavity, and the valve core is rotatably arranged in the valve core accommodating cavity.

[0018] According to the plug valve of the embodiments of the present application, by arranging the valve core of the above-mentioned embodiments, the gas flow of the plug valve can be linearly controlled, which is flexible, accurate, and has a low height, which is beneficial to the ultra-thin design of the plug valve.

[0019] The present application further provides a gas appliance with the plug valve of the above-mentioned embodiments.

[0020] According to the gas appliance of the third aspect of the embodiment of the present application, the flow capacity of the gas can be linearly controlled by the plug valve, so that the linear control of the fire size is realized, and the assembly of the gas appliance is also optimized due to the ultra-thin design of the plug valve.

[0021] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0023] Figure 1 is a structural schematic view of a valve core for a plug valve according to an embodiment of the present application.

[0024] Figure 2 is a sectional view of a first gas outlet passage of the valve core for the plug valve according to an embodiment of the present application.

[0025] Figure 3 is a sectional view of a second gas outlet passage of the valve core for the plug valve according to an embodiment of the present application.

[0026] Figure 4 is an axial sectional view of the valve core for the plug valve according to an embodiment of the present application.

[0027] Figure 5 is a perspective view of the plug valve according to an embodiment of the present application.

[0028] Figure 6 is an exploded view of the plug valve according to an embodiment of the present application.

[0029] Figure 7 is a top view of the plug valve according to an embodiment of the present application.

[0030] Figure 8 is Figure 7 a sectional view along the line A-A in FIG.

[0031] Figure 9 is Figure 7 a sectional view along the line C-C in FIG.

[0032] Figure 10 is Figure 7 a sectional view along the line D-D in FIG.

[0033] Figure 11 is a front view of the plug valve according to an embodiment of the present application.

[0034] Figure 12 is a structural schematic view of a valve body of a stopcock valve according to an embodiment of the present application.

[0035] Figure 13 is a structural schematic view of an electromagnetic valve of a stopcock valve according to an embodiment of the present application.

[0036] Reference Signs:

[0037] stopcock valve 100,

[0038] valve body 1, valve core accommodating pipe 11, valve core accommodating cavity 111, air inlet pipe 12, air inlet 121, outer ring pipe 13, outer ring air outlet 131, second air inlet hole 132, inner ring pipe 14, inner ring passage 140, inner ring air outlet 141, first air inlet hole 142, inclined pipe 143, electromagnetic valve accommodating pipe 15, electromagnetic valve accommodating cavity 151, first communication pipe 16, second communication pipe 17,

[0039] first extension axis X1, second extension axis X2, third extension axis X3, fourth extension axis X4,

[0040] electromagnetic valve 2,

[0041] valve core 3, first air outlet passage 31, first recess 311, first cut groove 312, first through hole 313, first end 314, second end 315, second air outlet passage 32, second recess 321, second through hole 323, micro fire hole 324, third end 325, fourth end 326, air inlet passage 33,

[0042] valve rod 41, protruding block 411, damping block 42, open block ring 43, pressing plate 44, valve seat 45, valve needle 46, valve core spring 47, gasket 48, O-ring 49, plug screw 50, micro switch 51, bottom plate sealing ring 52, lever 53, first lever ear 531, second lever ear 532, bottom plate 54, transmission block 55,

[0043] first fastening screw 61, second fastening screw 62, third fastening screw 63, fourth fastening screw 64, fifth fastening screw 65. DETAILED DESCRIPTION

[0044] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which like reference numerals refer to like elements throughout. The embodiments described below are examples of the present application, and are not intended to limit the present application.

[0045] Reference is made to Figures 1-4 A valve core 3 for a stopcock valve 100 according to an embodiment of the present application is described below.

[0046] According to the valve core 3 for the plug valve 100 in the embodiments of the present application, the valve core 3 is rotatably installed in the plug valve 100, the plug valve 100 can adjust the flow of the gas by rotating the valve core 3, so as to adjust the fire size of the gas appliance such as the gas stove.

[0047] For the valve core 3, specifically, as shown in Figures 1-4 The gas outside or in the gas tank can enter the valve core 3 through the gas inlet channel 33, the outer peripheral wall of the valve core 3 is formed with a first gas outlet channel 31, the first gas outlet channel 31 includes a first through hole 313 and a first groove 311, the first through hole 313 is used to connect the gas inlet channel 33 and the first groove 311, the first groove 311 extends along the circumference of the valve core 3, and in Figure 1 In a specific example shown in Figure 4 The valve core 3 is a columnar structure, the first groove 311 surrounds the outer peripheral wall of the valve core 3 in the horizontal direction, that is, the circumference here can refer to the horizontal direction in

[0048] And the attachment Figure 1 In the example shown in The first groove 311 surrounds the outer peripheral wall of the valve core 3 in the horizontal direction, which can make the first groove 311 occupy a smaller space in the axial direction of the valve core 3, which can be beneficial to reduce the height of the valve core 3, thereby facilitating the ultra-thin design of the plug valve 100.

[0049] Further, the first groove 311 has a first end portion 314 and a second end portion 315 in the circumferential direction, the first through hole 313 is located between the first end portion 314 and the second end portion 315, and the groove depth of the first end portion 314 and / or the second end portion 315 gradually increases in the direction towards the first through hole 313. In a first example, only the groove depth of the first end portion 314 gradually increases in the direction towards the first through hole 313, in a second example, only the groove depth of the second end portion 315 gradually increases in the direction towards the first through hole 313, and in a third example, the groove depth of the first end portion 314 gradually increases in the direction towards the first through hole 313, and at the same time, the groove depth of the second end portion 315 gradually increases in the direction towards the first through hole 313. In addition, further, when the first gas outlet channel 31 is connected with the gas outlet pipeline of the plug valve 100, for example, the second end portion 315 is first communicated with the gas outlet pipeline of the plug valve 100, at this time, in the rotation process of the valve core 3, the flow of the gas is gradually increased through the gradually increasing groove depth, so that the flow of the gas can be linearly controlled better, thereby facilitating the linear control of the fire size of the gas appliance, further, the valve core 3 continues to rotate, so that the first through hole 313 is opposite to the gas outlet pipeline of the plug valve 100, at this time, the flow of the gas is the largest, and further, the valve core 3 continues to rotate, so that the flow of the gas gradually decreases, in addition, when the first end portion 314 of the valve core 3 is opposite to the gas outlet pipeline of the plug valve 100, in the rotation process of the valve core 3, the groove depth of the first end portion 314 gradually decreases, so that the flow of the gas linearly decreases, and finally the first gas outlet channel 31 is disconnected with the gas outlet pipeline of the plug valve 100. As can be seen from the above, the present application can better linearly control the flow of the gas, has good control effect, can better meet the actual needs of the user, in addition, taking the gas stove as an example, whether in the process of opening the gas stove or in the process of closing the gas stove, the flow of the gas of the gas stove or the fire size of the gas stove will not suddenly increase or decrease, which can also avoid the risk of flame separation of the gas stove to a certain extent.

[0050] Therefore, the valve core 3 for the plug valve 100 according to the embodiment of the present application can facilitate the reduction of the height of the valve core 3 by arranging the first groove 311 surrounding the valve core 3 in the horizontal direction, thereby facilitating the ultra-thin design of the plug valve 100, in addition, the groove depth of the first end portion 314 and the second end portion 315 of the first groove 311 gradually increases in the direction towards the first through hole 313, and the first through hole 313 is located between the first end portion 314 and the second end portion 315, thereby facilitating the linear control of the gas flow of the plug valve 100.

[0051] In some embodiments of the present application, the distance between the first end portion 314 and the first through hole 313 is greater than the distance between the second end portion 315 and the first through hole 313, and the first gas outlet channel 31 further comprises a first cut groove 312, which is located between the first end portion 314 and the first through hole 313, and the groove depth of the first cut groove 312 gradually increases in the direction from the first end portion 314 to the first through hole 313.

[0052] Specifically, reference can be made to the accompanying drawings Figure 1 and Figure 2 In the first end portion 314 of the first groove 311 to the first through hole 313, the groove depth of the first groove 311 is constant, that is, the part of the groove between the first end portion 314 of the first groove 311 and the first through hole 313 is a flat groove. In order to further realize the linear control of the gas flow, the first cut groove 312 is arranged in the flat groove, and the groove depth of the first cut groove 312 gradually increases in the direction from the first end portion 314 to the first through hole 313. Taking the rotation direction of the valve core 3 as an example, the rotation direction of the valve core 3 is from the first through hole 313 to the first end portion 314, in the process of rotating in this direction, the gas flow of the first through hole 313 is the largest, then in the process of rotating to the first cut groove 312, the groove depth of the first cut groove 312 gradually decreases in this direction, so that the gas flow gradually decreases, thereby realizing the linear control of the gas flow. Then, when the valve core 3 rotates to the position of the first end portion 314 of the first groove 311, the groove depth of the first end portion 314 also gradually decreases, thereby realizing the further linear control of the gas flow. In the above, the rotation to the first cut groove 312 is not described in detail.

[0053] In addition, in the rotation direction of the valve core 3, for the gradual decrease of the groove depth of the first cut groove 312 and the gradual decrease of the groove depth of the first end portion 314, taking the inclined surface as an example, the inclination angle of the bottom surface of the first cut groove 312 and the inclination angle of the first end portion 314 can be the same, at this time, the bottom surface of the first cut groove 312 and the bottom surface of the first end portion 314 are in the same curved surface; the inclination angle of the bottom surface of the first cut groove 312 and the inclination angle of the first end portion 314 can be different, at this time, the inclination angle of the first end portion 314 can be set according to the actual situation, for example, the inclination angle of the first end portion 314 can meet the switching of the gas appliance from the burning state to the closed state.

[0054] Optionally, as Figure 1As shown, the slot width of the first cut groove 312 is less than the slot width of the first recess groove 311. Thus, when the first cut groove 312 is opposite to the gas outlet pipeline of the plug valve 100, part of the first recess groove 311 is also opposite to the gas outlet pipeline of the plug valve 100, and this part of the first recess groove 311 is a flat groove, that is, the slot depth of this part of the first recess groove 311 is equal, and thus the width of the first cut groove 312 can be adjusted according to actual conditions to control the linear control state of the gas flow in this stage. For example, the width of the first cut groove 312 can be designed according to different needs, so as to design several plug valves 100 with different gas flows to be applied to gas appliances with different needs.

[0055] In another example, the slot width of the first cut groove 312 can also be equal to the slot width of the first recess groove 311.

[0056] In another example, the slot depth of the part of the first recess groove 311 between the first end 314 of the first recess groove 311 and the first through hole 313 can also gradually increase or gradually decrease, so that the gas flow of the valve core 3 can be more flexibly and accurately linearly controlled, that is, the gas flow of the valve core 3 is linearly controlled by the cooperation of the first recess groove 311 and the first cut groove 312.

[0057] In some embodiments of the present application, a second gas outlet passage 32 is further formed on the outer peripheral wall of the valve core 3, the second gas outlet passage 32 comprises a second through hole 323 and a second recess groove 321, the second through hole 323 is used for connecting the air inlet passage 33 and the second recess groove 321, and the second recess groove 321 extends along the circumference of the valve core 3 and is spaced apart from the first recess groove 311 in the axial direction of the valve core 3.

[0058] For example Figure 1 As shown, the first recess groove 311 is below the second recess groove 321, and the first recess groove 311 and the second recess groove 321 both surround the outer peripheral wall of the valve core 3 in the horizontal direction, wherein the first gas outlet passage 31 is used for connecting the large fire gas outlet pipeline of the plug valve 100, and the second gas outlet passage 32 is used for connecting the small fire gas outlet pipeline of the plug valve 100. In this way, by surrounding the outer peripheral wall of the valve core 3 in the horizontal direction by the first recess groove 311 and the second recess groove 321, the height of the valve core 3 can be reduced to a certain extent, thereby facilitating the ultra-thin design of the plug valve 100.

[0059] In another example, one of the first recess groove 311 and the second recess groove 321 can extend in the horizontal direction, and the other of the first recess groove 311 and the second recess groove 321 can extend in the spiral direction, which is not limited here.

[0060] Optionally, as Figure 3As shown, in the circumferential direction, the second groove 321 has a third end portion 325 and a fourth end portion 326, the second through hole 323 is located between the third end portion 325 and the fourth end portion 326, and the groove depth of the third end portion 325 and / or the fourth end portion 326 gradually increases in the direction towards the second through hole 323. In a first example, only the groove depth of the third end portion 325 gradually increases in the direction towards the second through hole 323; in a second example, only the groove depth of the fourth end portion 326 gradually increases in the direction towards the second through hole 323; in a third example, the groove depth of the third end portion 325 gradually increases in the direction towards the second through hole 323, and at the same time, the groove depth of the fourth end portion 326 gradually increases in the direction towards the second through hole 323. Thus, during the rotation of the valve core 3, the second groove 321 can also better linearly control the gas flow flux, can linearly control the gas flow flux, has a good control effect, can meet the actual needs of users, in addition, taking the gas stove as an example, whether in the process of opening the gas stove or in the process of closing the gas stove, the gas flow flux of the gas stove or the size of the gas stove fire will not suddenly increase or decrease, which can also avoid the risk of flame separation of the gas stove to a certain extent.

[0061] Optionally, as Figure 3 shown, the distance between the third end portion 325 and the second through hole 323 is greater than the distance between the fourth end portion 326 and the second through hole 323, and the second gas outlet passage 32 further comprises a second cut groove (not shown in the figure), the second cut groove is located between the third end portion 325 and the second through hole 323, and the groove depth of the second cut groove gradually increases in the direction from the third end portion 325 to the second through hole 323.

[0062] Specifically, between the third end 325 of the second groove 321 and the second through hole 323, the groove depth of the second groove 321 is constant, that is, the part of the second groove 321 between the third end 325 and the second through hole 323 is a flat groove. In order to further realize linear control of the gas flow flux, a second cut groove is arranged in the flat groove, and the groove depth of the second cut groove gradually increases in the direction from the third end 325 to the second through hole 323. Taking the rotation direction of the valve core 3 as an example, that is, the rotation direction from the second through hole 323 to the third end 325, when the valve core 3 rotates in this direction, the gas flow flux of the second through hole 323 is the largest, and then when the valve core 3 rotates to the second cut groove, the groove depth of the second cut groove gradually decreases in this direction, so that the gas flow flux gradually decreases, thereby realizing linear control of the gas flow flux. Then, when the valve core 3 rotates to the position of the third end 325 of the second groove 321, the groove depth of the third end 325 also gradually decreases, thereby further realizing linear control of the gas flow flux. In the above, the rotation to the second cut groove is taken as an example, and the rotation to the second cut groove means that the second cut groove is opposite to the gas outlet pipeline of the plug valve 100.

[0063] In addition, in the rotation direction of the valve core 3, the groove depth of the second cut groove gradually decreases, and the groove depth of the third end 325 gradually decreases. Taking the inclined surface as an example, the inclination angle of the bottom surface of the second cut groove and the inclination angle of the third end 325 can be the same, and at this time, the bottom surface of the second cut groove and the bottom surface of the third end 325 are in the same curved surface. The inclination angle of the bottom surface of the second cut groove and the inclination angle of the third end 325 can be different, and at this time, the inclination angle of the third end 325 can be set according to actual conditions, for example, the inclination angle of the third end 325 can meet the switching of the gas appliance from the burning state to the closed state.

[0064] Optionally, the groove width of the second cut groove is smaller than the groove width of the second groove 321. Therefore, when the second cut groove is opposite to the gas outlet pipeline of the plug valve 100, part of the second groove 321 is also opposite to the gas outlet pipeline of the plug valve 100, and this part of the second groove 321 is a flat groove, that is, the groove depths of this part of the second groove 321 are equal. Therefore, the width of the second cut groove can be adjusted according to actual conditions to control the linear control state of the gas flow flux in this stage, for example, the width of the second cut groove can be designed according to different requirements, so that several plug valves 100 with different gas flow fluxes are designed to be applied to gas appliances with different requirements.

[0065] In another example, the groove width of the second cut groove can also be equal to the groove width of the second groove 321.

[0066] In some examples, the depth of the second groove 321 can gradually increase or gradually decrease between the first end 314 of the second groove 321 and the second through hole 323, so that the gas flow of the valve core 3 can be linearly controlled more flexibly and accurately, i.e., the gas flow of the valve core 3 is linearly controlled by the cooperation of the second groove 321, the second cut groove, and the second through hole 323.

[0067] In some examples of the present application, the second groove 321 is in communication with the small fire ejection pipe, and the second gas outlet channel 32 further comprises a micro fire hole 324 which is spaced apart from the second groove 321 in the circumferential direction. Thus, the second gas outlet channel 32 can first realize linear control of the gas flow by the cooperation of the second groove 321, the second cut groove, and the second through hole 323, and then realize interval control of the gas flow by the micro fire hole 324 which is spaced apart from the second groove 321, so that the gear control of the gas appliance can be realized to some extent.

[0068] The present application further provides a plug valve 100 having the valve core 3 of the above-mentioned examples, the plug valve 100 comprising a valve body and the valve core 3, and the valve core 3 is arranged in the valve body. Specifically, the valve body has a valve core accommodating cavity, and the valve core 3 is rotatably arranged in the valve core accommodating cavity.

[0069] Thus, according to the plug valve 100 of the examples of the present application, the gas flow of the plug valve 100 can be linearly controlled by the valve core 3 of the above-mentioned examples, which is good in flexibility and accurate in control, and in addition, the valve core 3 of the present application is low in height, which can be beneficial to the ultra-thin design of the plug valve 100.

[0070] The present application further provides a gas appliance having the plug valve 100 of the above-mentioned examples.

[0071] According to the gas appliance of the present application, the gas flow can be linearly controlled by the plug valve 100 of the above-mentioned examples, so that the linear control of the fire size can be better realized, and in addition, the ultra-thin design of the plug valve 100 is also beneficial to the optimization of the assembly of the gas appliance.

[0072] The following refers to Figures 1-13 The structure of the plug valve 100 of the gas stove of one specific example is described.

[0073] As shown in Figure 6 , Figure 8 , Figure 10 , Figure 12 , the plug valve 100 comprises a valve body 1, and the valve body 1 has a valve core accommodating cavity 111, an air inlet channel, an outer ring channel, an inner ring channel 140, and an electromagnetic valve accommodating cavity 151.

[0074] Further referring toFigure 5 As shown, the inlet passage is configured by the inlet pipe 12 and the first communication pipe 16, the inlet pipe 12 extends in the front-rear direction, the inlet pipe 12 has a first extension axis X1, the first communication pipe 16 extends in the left-right direction, the electromagnetic valve accommodating cavity 151 extends in the front-rear direction, the rear end of the inlet pipe 12 penetrates the pipe wall of the first communication pipe 16, so that the inlet pipe 12 communicates with the first communication pipe 16, the right end of the first communication pipe 16 penetrates the pipe wall of the electromagnetic valve accommodating pipe 15, so as to communicate with the electromagnetic valve accommodating cavity of the electromagnetic valve accommodating pipe 15. Further, the inner ring passage 140 includes the inner ring pipe 14, the rear end of the inner ring pipe 14 extends to the lower end of the valve core accommodating cavity 111, so that the inner ring passage 140 of the inner ring pipe 14 communicates with the valve core accommodating cavity 111, the inner ring pipe 14 has a third extension axis X3, the outer ring passage is configured by the outer ring pipe 13 and the second communication pipe 17, the outer ring pipe 13 extends in the front-rear direction, the second communication pipe 17 extends in the left-right direction, the outer ring pipe 13 has a second extension axis X2, wherein the rear end of the outer ring pipe 13 penetrates the pipe wall of the second communication pipe 17, so that the outer ring pipe 13 communicates with the second communication pipe 17, the left end of the second communication pipe 17 communicates with the valve core accommodating cavity 111. The left end of the first communication pipe 16 can be plugged by the plug screw 50, and the right end of the second communication pipe 17 can also be plugged by the plug screw 50.

[0075] The valve core accommodating cavity 111 is located in the vertically extending valve core accommodating pipe 11, a valve seat 45 is installed above the valve core accommodating pipe 11 to close the valve core accommodating cavity 111, a through hole is formed in the valve seat 45 to allow the valve rod 41 to pass through, a damping block 42 is installed on the valve seat 45, the damping block 42 is sleeved on the valve rod 41, when the valve rod 41 rotates, the damping block 42 affects the rotation of the valve rod 41, so that the user has a certain touch when driving the knob to rotate, when rotating to the corresponding gear, the damping block 42 can limit the rotation of the valve rod 41, so that the user needs to increase the force applied to the knob when driving the knob to rotate to the next gear, which can give the user a clear gear prompt, so that the user does not need to look down to check whether it has been rotated to the corresponding gear, the operation is simple, and the user's experience can be improved. In addition, the damping block 42 can include a block piece, when the valve rod 41 triggers the block piece, a sound can be emitted to better remind the user that the corresponding gear has been rotated, so that the user does not need to look down to check, which can improve the user's experience.

[0076] The lower end of the valve rod 41 extends into the valve seat 45, and the lower end of the valve rod 41 is provided with a boss, the valve seat 45 and the valve core 3 are both formed with a clamping groove, and the boss can be matched with the clamping groove. The lower end of the valve rod 41 is provided with a valve needle 46, that is, one end of the valve needle 46 abuts against the valve rod 41, and the other end extends into the valve core 3. The valve needle 46 extending into the valve core 3 is sleeved with a gasket 48, an O-ring 49 and a valve core spring 47. Thus, under the action of the valve core spring 47, the valve needle 46 is in the first position. At this time, the boss of the valve rod 41 is matched with the clamping groove of the valve seat 45. Thus, the valve rod 41 cannot rotate under the action of the clamping groove of the valve seat 45. When the valve rod 41 is driven to move downward, the force can overcome the elastic force of the valve core spring 47. Thus, the boss of the valve rod 41 can be disengaged from the clamping groove of the valve seat 45. At this time, the boss of the valve rod 41 can only be matched with the clamping groove of the valve core 3. Thus, the valve rod 41 can be rotated, and the valve rod 41 can drive the valve core 3 to rotate when the valve rod 41 rotates, so that the first gas outlet channel 31 on the valve core 3 is matched with the first gas inlet hole 142 of the inner ring channel 140, and the second gas outlet channel 32 is matched with the second gas inlet hole 132 of the outer ring channel, thereby adjusting the fire size.

[0077] Further, the lower end of the valve needle 46 is provided with a lever 53, and the lever 53 is formed with a first lever ear 531 and a second lever ear 532. When the valve rod 41 is driven to move downward, the force can overcome the elastic force of the valve core spring 47, so that the valve needle 46 can abut against the first lever ear 531. When the valve rod 41 drives the valve needle 46 to continue to move downward, the valve needle 46 can drive the lever 53 to rotate around the lever 53 axis X. The rotation of the lever 53 can drive the second lever ear 532 to rotate around the lever 53 axis X, so that the second lever ear 532 can drive the electromagnetic valve 2, so that the electromagnetic valve 2 unlocks the blockage of the electromagnetic valve containing cavity 151. Thus, the electromagnetic valve containing cavity 151 can be communicated with the gas inlet channel and the valve core containing cavity 111, and the external gas can enter the electromagnetic valve containing cavity through the gas inlet channel, and then enter the valve core containing cavity 111. The electromagnetic valve 2 can be installed on the electromagnetic valve containing pipe 15 through a captive screw. The end of the electromagnetic valve 2 facing the lever 53 also has a transmission block 55. The second lever ear 532 can transmit the force to the electromagnetic valve 2 through the transmission block 55, so that the electromagnetic valve 2 can unlock the blockage of the electromagnetic valve containing cavity 151.

[0078] A pressing plate 44 is arranged between the valve stem 41 and the valve body 1, one end of the pressing plate 44 is sleeved on the assembling groove of the valve stem 41 and can be limited and fixed through the open check ring 43, the other end of the pressing plate 44 can be positioned in the positioning groove of the valve body 1, so that when the valve stem 41 moves downward, the pressing plate 44 can be deformed, when the protrusion 411 of the valve stem 41 rotates to the position corresponding to the clamping groove of the valve seat 45 and stops applying downward force, the valve core spring 47 can recover deformation, so that the valve stem 41 and the valve needle 46 can move upward under the action of the valve core spring 47, and the valve stem 41 and the valve needle 46 can be prevented from being punched out under the action of the pressing plate 44.

[0079] In addition, the valve body 1 also has an opening at the bottom, which can be closed by a bottom plate 54, the bottom plate 54 can be assembled by a fastening screw, and the bottom plate 54 and the valve body 1 are provided with a bottom plate sealing ring 52 therebetween, so as to better seal the gap between the bottom plate 54 and the valve body 1.

[0080] A micro switch 51 can also be assembled on the valve body 1, and the micro switch 51 can be assembled on the valve body 1 by a fastening screw.

[0081] The valve core 3 is cylindrical, the valve core 3 is formed with an air inlet channel 33, the outer peripheral wall of the valve core 3 is formed with a first air outlet channel 31 and a second air outlet channel 32, the first air outlet channel 31 communicates with the inner ring pipe 14, the first air outlet channel 31 includes a first through hole 313, a first groove 311 and a first cut groove 312, the first groove 311 extends along the circumference of the valve core 3 and has a first end portion 314 and a second end portion 315 in the circumferential direction, the first through hole 313 is located between the first end portion 314 and the second end portion 315, and the groove depth of the first end portion 314 and the second end portion 315 gradually increases in the direction toward the first through hole 313. The distance between the first end portion 314 and the first through hole 313 is greater than the distance between the second end portion 315 and the first through hole 313, and the first air outlet channel 31 further includes the first cut groove 312, the first cut groove 312 is located between the first end portion 314 and the first through hole 313, and the groove depth of the first cut groove 312 gradually increases in the direction from the first end portion 314 to the first through hole 313. The groove width of the first cut groove 312 is smaller than the groove width of the first groove 311.

[0082] The second gas outlet passage 32 is located above the first gas outlet passage 31, and the second gas outlet passage 32 is in communication with the outer ring pipe 13. The second gas outlet passage 32 comprises a second through hole 323 and a second groove 321. The second through hole 323 is used for communication between the gas inlet passage 33 and the second groove 321. The second groove 321 extends along the circumference of the valve core 3 and is spaced from the first groove 311 in the axial direction of the valve core 3. In the circumferential direction, the second groove 321 has a third end portion 325 and a fourth end portion 326. The second through hole 323 is located between the third end portion 325 and the fourth end portion 326. The groove depth of the third end portion 325 and / or the fourth end portion 326 gradually increases in the direction towards the second through hole 323. The distance between the third end portion 325 and the second through hole 323 is greater than the distance between the fourth end portion 326 and the second through hole 323. The second gas outlet passage 32 further comprises a second cut groove. The second cut groove is located between the third end portion 325 and the second through hole 323. In the direction from the third end portion 325 to the second through hole 323, the groove depth of the second cut groove gradually increases. The groove width of the second cut groove is smaller than the groove width of the second groove 321.

[0083] The second groove 321 is in communication with the small fire ejector pipe, that is, the second groove 321 is in communication with the small fire ejector pipe through the outer ring pipe. The second gas outlet passage 32 further comprises a micro fire hole 324. The micro fire hole 324 is spaced from the second groove 321 in the circumferential direction.

[0084] The working process of the plug valve 100 of the specific embodiment will be described below with reference to the accompanying drawings.

[0085] First, press the valve stem 41 downward. The valve stem 41 drives the valve needle 46 to move downward, so that the valve needle 46 can drive the first lug 531. After receiving the force, the first lug 531 can drive the lug rod 53 to rotate as a whole around the axis of the lug rod 53. At this time, the second lug 532 of the lug rod 53 can drive the transmission block 55 to transmit the force to the electromagnetic valve 2. The electromagnetic valve 2 can unlock the blockage of the electromagnetic valve cavity 151, so as to communicate the gas inlet passage and the valve core cavity 111. The gas can enter the valve core cavity 111 from the gas inlet passage.

[0086] The gas entering the valve core accommodating cavity 111 can enter the inner ring gas channel and the outer ring gas channel of the valve core 3 respectively. At this time, since the protrusion 411 of the valve rod 41 and the clamping groove of the valve seat 45 are disengaged, the valve rod 41 can be rotated. When the valve rod 41 rotates, the protrusion 411 of the valve rod 41 engages with the clamping groove of the valve core 3. At this time, the valve rod 41 can drive the valve core 3 to rotate. In this way, the first gas outlet passage 31 of the valve core 3 can be opposite to the first gas inlet hole 142 of the valve seat 45, and the second gas outlet passage 32 of the valve core 3 can be opposite to the second gas inlet hole 132 of the valve seat 45. Therefore, the gas entering the inner ring gas channel can enter the inner ring channel through the first gas outlet passage 31, and the gas entering the outer ring gas channel can enter the outer ring channel through the second gas outlet passage 32. Since the first gas outlet passage 31 and the second gas outlet passage 32 both have a plurality of passages, the valve rod 41 can be rotated to make different first gas outlet passages 31 and different second gas outlet passages 32 of the valve core 3 opposite to the first gas inlet hole 142 and the second gas inlet hole 132 of the valve body 1 respectively, so as to adjust the size of different fire.

[0087] Further, when adjusting the size of the fire, the valve body 1 has the valve seat 45, the valve seat 45 is provided with the damping block 42, the damping block 42 is sleeved on the valve rod 41, and the damping block 42 can be triggered when the valve rod 41 rotates. When rotated to the corresponding gear position, the user can not only feel that the corresponding gear position is rotated in the sense of touch, but also the damping block 42 can be triggered to emit a sound effect, so as to remind the user that the gear position has been rotated. Therefore, the user does not need to look down to check, and the user experience can be improved.

[0088] In addition, in the process of rotating the valve core by the valve rod 41, due to the first gas outlet passage 31 and the second gas outlet passage 32 provided on the valve core 3, specifically, the first gas outlet passage 31 includes the first recess 311, the first cut groove 312 and the first through hole 313, and the second gas outlet passage 32 includes the second recess 321, the second cut groove and the second through hole 323, the linear control of the air volume of the plug valve 100 can be better achieved.

[0089] Specifically, taking the first gas outlet passage 31 as an example, in the rotating process, the second end portion 315 with an inclined surface is first opposite to the first gas inlet hole 142, so that the flow of the gas gradually increases when the flow passage is connected. When the user adjusts the fire in the clockwise closing direction, the change of the gas flow can be more finely controlled, so that the inner ring flame and the outer ring flame of the gas stove are synchronously adjusted from the maximum flame to the minimum flame, and the control effect is good. In the related art, when the valve core 3 is rotated to be conductive, the first through hole 313 is directly connected with the first gas inlet hole 142, and there is no gradual change process. Thus, the flow provided when the gas passage is connected is suddenly changed, which is easy to cause explosion, thereby affecting the ignition and the burning effect.

[0090] In addition, in the process of counterclockwise opening by the user in the present application, when the first air inlet hole 142 is opposite to the first through hole 313, the flow of the gas is the largest, at this time, continue to rotate the valve core 3, so that the combination of the first recess 311 and the first cutting groove 312 of the first gas outlet passage 31 is opposite to the first air inlet hole 142, at this time, only the bottom surface of the first cutting groove 312 has a slope, and it is a linear change, which not only can realize the linear control of the gas flow, but also can more finely adjust the gas flow, or in other words, it can not only meet the supply of gas, but also make the linear adjustment of the gas flow more smooth, wherein it should be noted that although the related patents also have a groove structure for linear adjustment, in order to make the linear adjustment smooth, the bottom surface of the groove structure is mostly made into a bottom surface with a certain curved surface, which requires a multi-axis machine tool, and at the same time of rotating the valve core, the machining depth of the cutter is raised, which has high requirements for equipment processing and low production efficiency. The combination of the first recess 311 and the first cutting groove 312 can make the slope of the bottom surface of the first cutting groove 312 change linearly, which has low requirements for equipment processing and only needs milling cutter to directly linearly process, so the production efficiency is low.

[0091] When the gas stove is not used, the valve rod 41 can be reversely rotated, or can continue to rotate according to the rotation direction of the valve rod 41, so that the protrusion 411 of the valve rod 41 corresponds to the clamping groove of the valve seat 45, at this time, the user removes the force applied to the valve rod 41, and under the action of the valve core spring 47, the valve rod 41 and the valve needle 46 can move upward, at this time, the electromagnetic valve 2 can reseal the electromagnetic valve accommodating cavity 151 to disconnect the communication state between the air inlet passage and the valve core accommodating cavity 111, and under the action of the electromagnetic valve 2, the second stirring lug 532 of the stirring rod 53 can be driven to rotate to the original position, and when the valve rod 41 moves upward, it will not be knocked out and fall under the action of the pressing plate 44.

[0092] The other configurations and operations of the plug valve and the gas appliance according to the embodiments of the present application are known to those skilled in the art, and will not be described in detail here.

[0093] In the description of the present specification, the description referring to the terms “some embodiments”, “optionally”, “further”, or “some examples” and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does 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.

[0094] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and application of the present application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. A valve core for a plug valve, characterized in that, The valve core is rotatably mounted inside the plug valve, an air inlet channel is formed inside the valve core, and a first air outlet channel is formed on the outer peripheral wall of the valve core. The first air outlet channel includes a first through hole and a first groove. The first through hole is used to connect the air inlet channel and the first groove. The first groove extends circumferentially along the valve core and has a first end and a second end in the circumferential direction. The first through hole is located between the first end and the second end. The groove depth of the first end and / or the second end gradually increases in the direction toward the first through hole. The distance between the first end and the first through hole is greater than the distance between the second end and the first through hole. The first air outlet channel also includes a first groove, which is located between the first end and the first through hole. In the direction from the first end to the first through hole, the groove depth of the first groove gradually increases.

2. The valve core for a plug valve according to claim 1, characterized in that, The width of the first cut is smaller than the width of the first groove.

3. The valve core for a plug valve according to claim 1, characterized in that, A second air outlet channel is also formed on the outer peripheral wall of the valve core. The second air outlet channel includes a second through hole and a second groove. The second through hole is used to connect the air inlet channel and the second groove. The second groove extends circumferentially along the valve core and is spaced apart from the first groove in the axial direction of the valve core.

4. The valve core for a plug valve according to claim 3, characterized in that, In the circumferential direction, the second groove has a third end and a fourth end, and the second through hole is located between the third end and the fourth end. The groove depth of the third end and / or the fourth end gradually increases in the direction toward the second through hole.

5. The valve core for a plug valve according to claim 4, characterized in that, The distance between the third end and the second through hole is greater than the distance between the fourth end and the second through hole. The second air outlet channel also includes a second groove, which is located between the third end and the second through hole. In the direction from the third end to the second through hole, the groove depth of the second groove gradually increases.

6. The valve core for a plug valve according to claim 5, characterized in that, The width of the second cut is smaller than the width of the second groove.

7. The valve core for a plug valve according to claim 3, characterized in that, The second groove is connected to the small flame ejector tube, and the second gas outlet channel also includes a micro-flame hole, which is circumferentially spaced from the second groove.

8. A plug valve, characterized in that, include: Valve body; and The valve core according to any one of claims 1-7, wherein the valve core is disposed in the valve body.

9. A gas appliance, characterized in that, include: Burner; and The plug valve of claim 8, wherein the plug valve is connected to the burner.

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