Plug valve

Abstract

The invention provides a plug valve and belongs to the technical field of kitchen appliances, the plug valve comprises a valve body, a valve core, a valve rod and a delay mechanism, the valve body comprises a valve body, an outer ring air outlet assembly and an inner ring air outlet assembly, and the valve core comprises a valve core cavity, an outer ring air outlet hole, an air inlet hole and an inner ring air outlet hole, the outer ring air outlet assembly is provided with an outer ring channel and a stir-frying channel connected to the outer ring channel, and the inner ring air outlet assembly is provided with an inner ring channel; the air inlet hole is communicated with the outer ring air outlet hole to form a first air outlet channel communicated with the outer ring channel, and the air inlet hole is communicated with the inner ring air outlet hole to form a second air outlet channel communicated with the inner ring channel; the delay mechanism is inserted into the valve element cavity and can abut against the valve rod which is configured to be in a downward pressing state, and the delay mechanism can ascend and descend along with the valve rod so as to connect or disconnect the first air outlet channel and the outer ring channel. The gas outlet of the outer ring can be delayed, ignition deflagration is prevented, and the product safety performance and the user experience are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of gas stoves, and in particular to a plug valve. Background Art

[0002] The plug valve can control the opening and closing of the stove, the on and off of the gas, the adjustment of the fire power, etc. It is an essential component of the gas stove. However, in the prior art, when the valve stem is pressed down to ignite, the gas enters the gas distribution cavity of the valve core, and the inner ring and the outer ring of the stove both discharge gas, resulting in a large amount of gas, which not only causes a waste of gas, but also may cause explosion. Summary of the invention

[0003] The first technical problem to be solved by the present invention is to provide a plug valve that can delay the gas outlet of the outer ring and prevent ignition and deflagration, thereby effectively improving the product safety performance and user experience, in response to the problems of the prior art.

[0004] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a plug valve, the plug valve comprising:

[0005] The valve body comprises a valve body, an outer ring gas outlet component and an inner ring gas outlet component connected to the outer wall of the valve body, the outer ring gas outlet component is provided with an outer ring channel and a stir-frying channel connected to the outer ring channel, and the inner ring gas outlet component is provided with an inner ring channel;

[0006] A valve core connected to the valve body, comprising a valve core cavity and an outer ring air outlet hole, an air inlet hole and an inner ring air outlet hole opened from top to bottom along the side wall of the valve core, the air inlet hole and the outer ring air outlet hole are connected to form a first air outlet channel, the air inlet hole and the inner ring air outlet hole are connected to form a second air outlet channel, the air outlet end of the first air outlet channel is connected to the air inlet end of the outer ring channel, and the air outlet end of the second air outlet channel is connected to the air inlet end of the inner ring channel;

[0007] A valve stem, connected to the valve core, and used to drive the valve core to rotate;

[0008] The delay mechanism is inserted into the interior of the valve core cavity and can abut against the valve stem configured in a downwardly pressed state, wherein the delay mechanism can move up and down along with the ignition process of the valve stem to connect or disconnect the first air outlet channel and the outer ring channel.

[0009] According to one embodiment of the present invention, the inner wall of the valve core cavity is connected with a limit ring for cooperating with the delay mechanism, and the delay mechanism includes:

[0010] A push rod, the bottom of which is inserted into the valve core cavity and the top of which is matched with the valve stem;

[0011] A sealing gasket connected to the bottom of the push rod, and can be inserted into and abutted against the inner circumference of the limiting ring by the movement of the valve stem and the push rod to disconnect the first air outlet channel;

[0012] An elastic member is connected between the push rod and the limiting ring to push the push rod to reset.

[0013] According to one embodiment of the present invention, the outer ring air outlet component comprises:

[0014] A first straight pipe connected to the outer ring air outlet of the valve body;

[0015] A first inclined pipe, the air inlet end of which is connected to a side of the first straight pipe close to the air outlet end, and the air outlet end is inclined in a direction away from the valve body and the inner ring air outlet assembly;

[0016] An air outlet pipe is connected to the air outlet end of the first inclined pipe.

[0017] According to one embodiment of the present invention, the air outlet pipe comprises:

[0018] A first air outlet branch pipe, the air inlet end of which is connected to the air outlet end of the first inclined pipe, so as to form an outer ring channel;

[0019] A second air outlet branch pipe is located between the first air outlet branch pipe and the inner ring air outlet assembly, with its air inlet end connected to the side of the first air outlet branch pipe close to the first inclined pipe, and its air outlet end connected to the side of the first air outlet branch pipe close to the air outlet end, for forming a stir-frying channel;

[0020] The central axis of the first outlet branch pipe is parallel to the central axis of the outlet end of the inner ring channel, and the central axis of the first outlet branch pipe and the central axis of the first straight pipe are perpendicular to each other and form a plane A.

[0021] According to an embodiment of the present invention, the gas outlet end of the first inclined pipe is connected with a first flange for connecting with the gas outlet pipe, and the thickness of the first flange is greater than or equal to 5 mm.

[0022] According to an embodiment of the present invention, the angle between the long side of the first flange and the plane A is a, wherein 20°≤a≤90°.

[0023] According to an embodiment of the present invention, the valve body further includes a first solenoid valve for controlling the on-off of the stir-frying channel, and the first solenoid valve includes:

[0024] A valve seat connected to a side of the first gas outlet branch pipe away from the inner ring gas outlet assembly;

[0025] The sealing head is inserted into the first air outlet branch pipe and can open or close the air inlet end of the second air outlet branch pipe.

[0026] According to one embodiment of the present invention, the air outlet pipe is provided with a second flange for connecting the first inclined pipe and a third flange for installing the first solenoid valve, the second flange and the third flange are staggered, and the angle between the long side of the third flange and the plane A is b, wherein 20°≤b≤90°.

[0027] According to one embodiment of the present invention, an air intake assembly is connected to the upper portion of the side wall of the valve body, and the air intake assembly includes:

[0028] A cylinder connected to the valve body, with a blind hole formed on a side away from the valve body;

[0029] A trapezoidal body, located below the cylindrical body, connected between the valve body and the cylindrical body, with an inclined hole, the air inlet end of the inclined hole is connected to the blind hole, and the air outlet end of the inclined hole is inclined from top to bottom toward the valve body and connected to the air inlet hole;

[0030] Wherein, the blind hole and the inclined hole are connected to form an air intake channel connected to the air intake hole.

[0031] According to one embodiment of the present invention, the inner ring air outlet assembly includes a second inclined tube and a second straight tube, one end of the second inclined tube is connected to the inner ring air outlet hole, and the other end of the second inclined tube extends toward the top of the valve body and is connected to the second straight tube.

[0032] According to an embodiment of the present invention, the air inlet end of the second straight pipe is connected to the air outlet end of the second inclined pipe, and a connecting block is connected between the second straight pipe, the second inclined pipe and the valve body.

[0033] According to one embodiment of the present invention, the plug valve further includes a gear assembly, and the gear assembly includes:

[0034] A gear shifter connected to one end of the valve core close to the valve stem;

[0035] The positioning assembly is connected to the top of the valve body and is away from the outer ring air outlet assembly, and cooperates with the gear shifter to achieve gear switching.

[0036] According to one embodiment of the present invention, the plug valve further comprises:

[0037] A valve cover connected to the top of the valve body;

[0038] A first micro switch, connected to the valve cover, for generating an ignition signal;

[0039] The second micro switch is connected to the top periphery of the valve body near the side of the inner ring air outlet assembly, and is used to sense whether the valve core is in the stir-frying position, wherein the top periphery of the valve body is connected to a first mounting plate for mounting the first micro switch.

[0040] According to one embodiment of the present invention, the valve cover comprises:

[0041] roof;

[0042] An arc-shaped plate, the top of which is fixed to the top plate, and the bottom of which is connected to the area of ​​the valve body between the positioning assembly and the first mounting plate, wherein the central angle of the arc-shaped plate is greater than °;

[0043] a second mounting plate, one end of which is connected to a region of the top plate corresponding to the opening of the arc-shaped plate, and the other end of which extends to the outside of the valve cover, wherein the second micro switch is connected to the outside of the second mounting plate;

[0044] There is a gap between the second mounting plate and the arc-shaped plate for the positioning assembly to pass through, so that when the valve cover is connected to the valve body, the positioning assembly can be inserted into and pass through the gap.

[0045] Compared with the prior art, the present invention has the following advantages or beneficial effects:

[0046] The present invention introduces the delay mechanism (4) inside the valve core to regulate the on-off of the outer ring channel, thereby delaying the outer ring gas outlet and preventing ignition and deflagration, thereby effectively improving product safety performance and user experience.

[0047] By optimizing the structure and air path of the outer ring air outlet assembly, not only can the distance between the outer ring channel and the valve stem be shortened, but the plug-in solenoid valve can also realize the outer ring frying function, thereby solving the interference problem existing in the outer ring frying of the existing direct plug-in platform.

[0048] By optimizing the structure of the valve cover, the installation and function realization of the sensing components or other electronic components are guaranteed without affecting the original structural functions, creating feasibility for building multiple functions such as timing functions on the plug-in platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0050] Figure 1 is a first schematic diagram of a plug valve shown according to an exemplary embodiment.

[0051] Figure 2 is a second schematic diagram of a plug valve shown according to an exemplary embodiment.

[0052] Figure 3 is a top view of a plug valve shown according to an exemplary embodiment.

[0053] Figure 4 is a front view of a plug valve shown according to an exemplary embodiment.

[0054] Figure 5 yes Figure 4 Section view in the AA direction.

[0055] Figure 6 yes Figure 4 Cross-sectional view in the BB direction.

[0056] Figure 7 is a side view of a valve core body shown according to an exemplary embodiment.

[0057] Figure 8 is an isometric view of a valve core body according to an exemplary embodiment.

[0058] Fig. 9 is a schematic diagram of a valve core according to an exemplary embodiment.

[0059] Fig.10 FIG. 1 is a schematic diagram showing the connection between a valve core and a delay mechanism according to an exemplary embodiment.

[0060] Fig.11 is a perspective view of a valve cover shown according to an exemplary embodiment.

[0061] Fig.12 is a bottom view of a valve cover shown according to an exemplary embodiment. Description of the drawings:

[0063] 1. Valve body; 10. Valve body;

[0064] 11. Outer ring air outlet assembly; 111. First straight pipe; 112. First inclined pipe; 1121. First flange; 1122. Sealing groove; 113. Air outlet pipe; 1131. First air outlet branch pipe; 1132. Second air outlet branch pipe; 1133. Second flange; 1134. Third flange;

[0065] 12. Inner ring air outlet assembly; 120. Inner ring channel; 121. Second inclined pipe; 122. Second straight pipe; 123. Connecting block;

[0066] 13. air intake assembly; 131. cylinder; 1311. blind hole; 132. trapezoidal body; 1321. inclined hole;

[0067] 14. first solenoid valve; 141. valve seat;

[0068] 15. First mounting plate;

[0069] 2. Valve core; 20. Valve core cavity; 21. Air inlet; 22. Outer ring air outlet; 23. Inner ring air outlet; 24. Limit ring;

[0070] 3. Valve stem;

[0071] 4. Delay mechanism; 41. Push rod; 42. Sealing pad;

[0072] 5. gear assembly; 51. gear shifter; 511. gear slot; 52. positioning assembly; 521. positioning sleeve; 522. spring; 523. steel ball;

[0073] 6. Valve cover; 61. Top plate; 62. Arc plate; 63. Second mounting plate; 64. Gap; 65. First limit block; 66. Second limit block. DETAILED DESCRIPTION

[0074] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0075] The terms "a", "an", "the", "" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0076] The embodiment of the present invention provides a plug valve, such as Figure 1-12As shown, the plug valve includes a valve body 1, a valve core 2, a valve stem 3 and a delay mechanism 4. The valve body 1 includes a valve body 10 and an outer ring air outlet component 11 and an inner ring air outlet component 12 connected to the outer wall of the valve body 10. The valve core 2 is connected to the valve body 10, and the valve stem 3 is connected to the valve core 2 for driving the valve core 2 to rotate; the outer ring air outlet component 11 is provided with an outer ring channel and a stir-fry channel connected to the outer ring channel, and the inner ring air outlet component 12 is provided with an inner ring channel 120; the valve core 2 includes a valve core cavity 20 and an outer ring air outlet hole 22 and an air inlet hole 22 opened from top to bottom along the side wall of the valve core 2. 21 and the inner ring air outlet hole 23, the air inlet hole 21 and the outer ring air outlet hole 22 are connected to form a first air outlet channel, and the air outlet end of the first air outlet channel is connected to the air inlet end of the outer ring channel; the air inlet hole 21 and the inner ring air outlet hole 23 are connected to form a second air outlet channel, and the air outlet end of the second air outlet channel is connected to the air inlet end of the inner ring channel 120; the delay mechanism 4 is inserted into and elastically connected to the inside of the valve core cavity 20, and can abut against the valve stem 3 configured to be in a downward pressed state, wherein the delay mechanism 4 can move up and down with the ignition process of the valve stem 3 to connect or disconnect the first air outlet channel and the outer ring channel. In the present application, an open groove is provided on the top of the valve core 2 for cooperating with the valve stem 3, and the delay mechanism 4 is inserted into and elastically connected to the valve core cavity 20. The top of the delay mechanism 4 passes through the bottom of the open groove and is inserted into the open groove. When the valve stem 3 is pressed down by ignition, the bottom of the valve stem 3 moves downward and is inserted into the open groove. As the valve stem 3 and the open groove are connected in place, the valve stem 3 can push the delay mechanism 4 to move downward and disconnect the first air outlet channel. Since the first air outlet channel is connected to the outer ring channel, and the outer ring channel is connected to the stir-frying channel, at this time, the gas can only enter the second air outlet channel and the inner ring channel 120 in turn and be ignited. At this time, the inner ring is ignited, the outer ring is extinguished and there is no gas accumulation on it. As the knob is loosened, the valve stem 3 and the delay mechanism 4 move upward, the first air outlet channel is connected, and the outer ring channel is also connected, and the inner ring fire completes the ignition of the outer ring, which can avoid the problem of burner explosion and improve the safety performance of the product. The present application introduces a delay mechanism 4 inside the valve core 2, and utilizes the delay mechanism 4 to regulate the on-off state of the outer ring channel, thereby delaying the outer ring gas outlet and preventing ignition and deflagration, thereby effectively improving product safety performance and user experience.

[0077] In a preferred embodiment of the present invention, Figure 5 , 6The inner wall of the valve core cavity 20 shown in FIG. 10 is connected with a stop ring 24 for cooperating with the delay mechanism 4. The delay mechanism 4 includes a push rod 41, a sealing gasket 42 and an elastic member. The top of the push rod 41 cooperates with the valve stem 3, and the bottom of the push rod 41 is inserted into the valve core cavity 20. The sealing gasket 42 is connected to the bottom of the push rod 41 and can be inserted into and abut against the inner periphery of the stop ring 24 by the movement of the valve stem 3 and the push rod 41 to disconnect the first air outlet channel. The elastic member is connected between the push rod 41 and the stop ring 24 to push the push rod 41 to reset. In the present application, the limiting ring 24 is connected to the area of ​​the valve core cavity 20 between the outer ring air outlet 22 and the air inlet 21, and the outer periphery of the sealing gasket 42 is provided with a sealing surface with the limiting ring 24. When the valve stem 3 is pressed down and inserted into the valve core 2 for ignition, the valve stem 3 drives the push rod 41 and the sealing gasket 42 to move downward, and the sealing gasket 42 is inserted and abutted against the limiting ring 24, so that the gas entering the air inlet 21 cannot enter the outer ring air outlet 22 and can only enter the inner ring air outlet 23, thereby disconnecting the first air outlet channel. When the knob is subjected to the external force and disappears, the valve stem 3 is reset under the action of the reset spring, and the elastic member pushes the rod 41 and the sealing gasket 42 to move upward, so that the first air outlet channel is connected, and then the outer ring channel begins to ventilate, and then the outer ring is ignited by the inner ring fire, thereby delaying the outer ring gas outlet and ignition, preventing the problem of ignition and deflagration, and improving product safety.

[0078] In a preferred embodiment of the present invention, Figure 1-8 The outer ring outlet assembly 11 shown includes a first straight pipe 111, a first inclined pipe 112 and an outlet pipe 113. The first straight pipe 111 is connected to the outer ring outlet of the valve body 10; the air inlet end of the first inclined pipe 112 is connected to the side of the first straight pipe 111 close to the outlet end, and the outlet end of the first inclined pipe 112 is inclined in a direction away from the valve body 10 and the inner ring outlet assembly 12; the outlet pipe 113 is connected to the outlet end of the first inclined pipe 112. In the present application, the plug valve can be a plug-in solenoid valve, and the outer ring channel and the stir-fry channel are arranged on the outlet pipe 113 thereon to realize the function of the plug-in solenoid valve in the outer ring stir-frying; the first straight pipe 111 and the first inclined pipe 112 are arranged to shorten the distance between the outer ring channel and the valve stem 3, and the first solenoid valve 14 avoids interference with the main solenoid valve. That is, the present application optimizes the structure and air path of the outer ring air outlet assembly 11 so that the outer ring of the direct-plug solenoid valve can be provided with a stir-frying function, thereby solving the interference problem existing in the outer ring stir-frying of the existing direct-plug platform, and realizing the diversified design of the direct-plug functional platform, thereby achieving the purpose of reducing costs and increasing efficiency.

[0079] In a preferred embodiment of the present invention, Figure 1-4The air outlet pipe 113 shown in 6-8 includes a first air outlet branch pipe 1131 and a second air outlet branch pipe 1132, the second air outlet branch pipe 1132 is located between the first air outlet branch pipe 1131 and the inner ring air outlet assembly 12, the air inlet end of the first air outlet branch pipe 1131 is connected to the air outlet end of the first inclined pipe 112, for forming an outer ring channel; the air inlet end of the second air outlet branch pipe 1132 is connected to a side of the first air outlet branch pipe 1131 close to the first inclined pipe 112, and the air outlet end of the second air outlet branch pipe 1132 is connected to a side of the first air outlet branch pipe 1131 close to its air outlet end, for forming a stir-frying channel; wherein, the central axis of the first air outlet branch pipe 1131 is parallel to the central axis of the air outlet end of the inner ring channel 120, and the central axis of the first air outlet branch pipe 1131 is perpendicular to the central axis of the first straight pipe 111 and forms a plane A. It is not difficult to see from the figure that the outer ring channel and the inner ring channel 120 are parallel and located at the same height. Since the central axis of the first air outlet branch pipe 1131 is perpendicular to the central axis of the first straight pipe 111, and the stir-frying channel, that is, the second air outlet branch pipe 1132, is inclined downward from the first air outlet branch pipe 1131, the air inlet and outlet directions of the stir-frying channel are inclined to the central axis of the first air outlet branch pipe 1131, and the second air outlet branch pipe 1132 will not occupy too much horizontal position, so that the distance between the first air outlet branch pipe 1131 and the second air outlet branch pipe 1132 is reduced, making the structure of the plug valve more compact, thereby enhancing the utilization of the stove shell and even the kitchen space.

[0080] In a preferred embodiment of the present invention, Figure 1-4 The outlet end of the first inclined tube 112 shown in FIG6-8 is connected to a first flange 1121 for connecting to the outlet tube 113, and the thickness of the first flange 1121 is greater than or equal to 5 mm. The thickness of the first flange 1121 in the present application is the distance between the flange surface of the first flange 1121 and the outlet end of the first inclined tube 112. By increasing the thickness of the first flange 1121, the thickness of the first flange 1121 is greater than or equal to 5 mm. When the first solenoid valve 14 is not required to be set on the outer ring, the first flange 1121 can be tapped and then connected to a straight-insert aluminum tube to achieve a universal valve body structure setting without frying, thereby increasing its scope of application.

[0081] Preferably, the flange surface of the first flange 1121 is recessed inward to form a sealing groove 1122, and a sealing ring is arranged in the sealing groove 1122 to increase the sealing performance of the first flange 1121 and the valve body 1 and improve the safety of the product.

[0082] In a preferred embodiment of the present invention, Figure 2-9The angle between the long side of the first flange 1121 shown and the plane A is a, where 20°≤a≤90°. The first flange 1121 in the present application is a rhombus, and its long side is inclined to the plane A, with 20°≤a≤90°, preferably 25°~65°, so that the stir-frying channel and the first solenoid valve 14 are misaligned with the main solenoid valve, which is convenient for the line outlet and assembly during the manufacturing process.

[0083] In a preferred embodiment of the present invention, Figure 1-4 The valve body 1 shown in Figure 6 also includes a first solenoid valve 14 for controlling the on and off of the stir-frying channel. The first solenoid valve 14 includes a valve seat 141 and a sealing head. The valve seat 141 is connected to the side of the first outlet branch pipe 1131 away from the inner ring outlet assembly 12; the sealing head is inserted into the first outlet branch pipe 1131 and can open or close the air inlet end of the second outlet branch pipe 1132. The present application installs the first solenoid valve 14 on the outside of the outer ring outlet assembly 11, and the movement direction of the sealing head 142 and the central axis of the first outlet branch pipe 1131 are inclined, which can not only prevent the interference between the first solenoid valve 14 and the main solenoid valve, but also make the valve body 10 thinnest in the vertical direction even if the first solenoid valve 14 is installed, and the height of the overall valve body 1 will not increase, nor will it interfere with the panel, so as to make full use of the internal space of the bottom shell of the stove.

[0084] In a preferred embodiment of the present invention, Figure 1-4 The outlet pipe 113 shown in Figures 6-8 is provided with a second flange 1133 for connecting the first inclined pipe 112 and a third flange 1134 for installing the first electromagnetic valve 14. The second flange 1133 and the third flange 1134 are staggered, and the angle between the long side of the third flange 1134 and the plane A is b, where 20°≤b≤90°. The second flange 1133 and the third flange 1134 are both rhombus-shaped and staggered, which facilitates the installation of the first electromagnetic valve 14. The long side of the third flange 1134 is tilted with the central axis of the first outlet branch pipe 1131, especially when 20°≤b≤90°, not only can the first electromagnetic valve 14 and the main electromagnetic valve be prevented from interfering, but also the valve body 10 can be made thinnest in the vertical direction even if the first electromagnetic valve 14 is installed, and the height of the overall valve body 1 will not be increased, nor will it interfere with the panel, so that the internal space of the bottom shell of the cooker is fully utilized.

[0085] In a preferred embodiment of the present invention, Figure 1-8The upper part of the side wall of the valve body 10 shown is connected to an air intake assembly 13, and the air intake assembly 13 includes a cylinder 131 and a trapezoidal body 132. The cylinder 131 is connected to the valve body 10, and the trapezoidal body 132 is located below the cylinder 131 and connected between the valve body 10 and the cylinder 131. A blind hole 1311 is provided on the side of the cylinder 131 away from the valve body 10; the trapezoidal body 132 is provided with an inclined hole 1321, and the air intake end of the inclined hole 1321 is connected to the blind hole 1311, and the air outlet end of the inclined hole 1321 is inclined from top to bottom toward the direction of the valve body 10 and is connected to the air intake hole 21. The blind hole 1311 and the inclined hole 1321 are connected to form an air intake channel connected to the air intake hole 21. In the present application, the cylindrical body 131 and the trapezoidal body 132 are integrally formed, which can also be understood as a thickened design of the lower wall of the cylindrical body 131. The trapezoidal body 132 opens a downwardly inclined inclined hole 1321, which can adapt to the position of the air inlet 21 without increasing the height of the entire valve body 1. Because the valve core 2 adds a delay mechanism 4 so that the outer ring air outlet 22, the air inlet 21 and the inner ring air outlet 23 are arranged from top to bottom, but the existing straight plug valve is the upper end of the valve body 1. In order to make the air inlet on the valve body 10 correspond to and connect with the air inlet 21, it is necessary to move the position of the air inlet on the valve body 10 downward, which will increase the height of the entire valve body 1, and the stove shell also needs to increase the corresponding space, which will increase the production cost. The air intake component 13 of the present application not only solves the problem of its connection with the air inlet 21, but also avoids the problem of increasing the overall height of the valve body 1, achieving the technical effect of reducing costs and increasing efficiency.

[0086] In a preferred embodiment of the present invention, Figure 1-8 The inner ring air outlet assembly 12 shown includes a second inclined tube 121 and a second straight tube 122. One end of the second inclined tube 121 is connected to the inner ring air outlet hole 23, and the other end of the second inclined tube 121 extends toward the top of the valve body 10 and is connected to the second straight tube 122. The second straight tube 122, the cylinder 131 and the first air outlet branch pipe 1131 of the present application are all located at the same height position of the valve body 10 and are distributed along the outer circumference of the valve body 10 at a designed angle. This design can effectively reduce the overall height of the valve body 1 and reduce the processing cost of the stove.

[0087] In a preferred embodiment of the present invention, Figure 1-8 The air inlet end of the second straight pipe 122 is connected to the air outlet end of the second inclined pipe 121, and a connecting block 123 is connected between the second straight pipe 122, the second inclined pipe 121 and the valve body 1. The connecting block 123 connects the valve body 10, the second inclined pipe 121 and the second straight pipe 122 as a whole, which facilitates the injection molding of the valve body 1 and improves the production efficiency and product stability.

[0088] In a preferred embodiment of the present invention, Figure 1-8 The plug valve shown also includes a gear assembly 5, which includes a gear 51 and a positioning assembly 52. ​​The gear 51 is connected to one end of the valve core 2 close to the valve stem 3; the positioning assembly 52 is connected to the top of the valve body 10 away from the outer ring air outlet assembly 11, and is used to cooperate with the gear 51 to achieve gear switching. Through the cooperation of the gear 51 and the positioning assembly 52, accurate control of different gears of the valve body 1 is achieved.

[0089] Specifically, the outer periphery of the gear shifter 51 is provided with a plurality of gear slots 511, and the positioning assembly 52 includes a positioning sleeve 521, a spring 522 and a steel ball 523. The positioning sleeve 521 is connected to the top of the valve body 1 on the side away from the outer ring outlet assembly 11; one end of the spring 522 is inserted and connected to the inside of the positioning sleeve 521, and the other end extends to the side of the positioning sleeve 521 close to the gear shifter 51; the steel ball 523 is connected to the other end of the spring 522, and the steel ball 523 can be inserted into or out of the gear slot 511 to achieve the switching of different gears. Among them, the spring 522 drives and the steel ball 523 to switch between different gear slots 511. The positioning sleeve 521 can guide the movement of the spring 522 to ensure the smooth switching of the gear. In this embodiment, the first straight tube 111 can correspond to the 0 degree position of the valve core 2, and the positioning sleeve 521 can correspond to the 180 degree position of the valve core 2, so that the interference of the positioning sleeve 521 with the outer ring outlet assembly 11 can be avoided, and the diversity of functions can be realized to the maximum extent.

[0090] In a preferred embodiment of the present invention, Figure 1-5 , 11 and 12 include a valve cover 6, a first micro switch and a second micro switch, the valve cover 6 is connected to the top of the valve body 10; the first micro switch is connected to the valve cover 6 for generating an ignition signal; the second micro switch is connected to the top periphery of the valve body 1 near the side of the inner ring gas outlet assembly 12 for sensing whether the valve core 2 is in the stir-frying position, wherein the top periphery of the valve body 1 is connected with a first mounting plate 15 for mounting the first micro switch. That is, the present application sets mounting positions for the first micro switch and the second micro switch on the valve body 10 and the valve cover 6, respectively, providing a basis for realizing diversity of functional platforms in the future.

[0091] In a preferred embodiment of the present invention, Figure 1-5, 11 and 12 include a top plate 61, an arc plate 62 and a second mounting plate 63, the top of the arc plate 62 is fixed to the top plate 61, the bottom of the arc plate 62 is connected to the area of ​​the valve body 1 located between the positioning assembly 52 and the first mounting plate 14, one end of the second mounting plate 63 is connected to the area of ​​the top plate 61 corresponding to the opening of the arc plate 62, the other end of the second mounting plate 63 extends to the outside of the valve cover 6, and the second micro switch is connected to the outside of the second mounting plate 63; wherein, the central angle of the arc plate 62 is greater than 90°, and there is a gap 64 between the second mounting plate 63 and the arc plate 62 for the positioning assembly 52 to pass through, and when the valve cover 6 is connected to the valve body 1, the positioning assembly 52 can be inserted into and pass through the gap 64. An installation space is formed between the top plate 61 and the arc plate 62, which ensures the installation and function realization of other structures of the valve body 1. The outward extension of the second installation plate 63 does not affect the original structural function, and also makes full use of the space between the valve body 10 and the valve cover 6, creating feasibility for the future direct insertion platform to build multiple functions such as timing function.

[0092] Preferably, the valve cover 6 further includes a first limit block 65 and a second limit block 66. The first limit block 65 is used to limit the 0-degree position of the valve stem 3. The second limit block 66 is located above the positioning assembly 32 and connected between the top plate 41, the arc plate 42 and the second mounting plate 43, and is used to limit the 180-degree position of the valve stem 3. The first limit block 65 and the second limit block 66 are used to limit the rotation range of the valve stem 4, accurately control the gear position, and improve the user experience.

[0093] In the embodiments of the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0094] In the description of the embodiments of the present invention, it needs to be understood that the directions or positional relationships indicated by the terms "upper" and "lower" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0095] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representation 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.

[0096] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A plug valve, characterized in that: include: The valve body (1) comprises a valve body (10), an outer ring gas outlet component (11) and an inner ring gas outlet component (12) connected to the outer wall of the valve body (10), wherein the outer ring gas outlet component (11) is provided with an outer ring channel and a stir-frying channel connected to the outer ring channel, and the inner ring gas outlet component (12) is provided with an inner ring channel (120); A valve core (2) connected to the valve body (10), comprising a valve core cavity (20) and an outer ring air outlet hole (22), an air inlet hole (21) and an inner ring air outlet hole (23) opened from top to bottom along the side wall of the valve core (2), the air inlet hole (21) and the outer ring air outlet hole (22) being connected to form a first air outlet channel, the air inlet hole (21) and the inner ring air outlet hole (23) being connected to form a second air outlet channel, the air outlet end of the first air outlet channel being connected to the air inlet end of the outer ring channel, and the air outlet end of the second air outlet channel being connected to the air inlet end of the inner ring channel (120); A valve stem (3) connected to the valve core (2) and used to drive the valve core (2) to rotate; The delay mechanism (4) is inserted into the interior of the valve core cavity (20) and can abut against the valve stem (3) configured to be in a downwardly pressed state, wherein the delay mechanism (4) can move up and down along with the ignition process of the valve stem (3) to connect or disconnect the first air outlet channel and the outer ring channel.

2. The plug valve according to claim 1, characterized in that: The inner wall of the valve core cavity (20) is connected to a limit ring (24) for cooperating with the delay mechanism (4), and the delay mechanism (4) comprises: A push rod (41), the bottom of which is inserted into the valve core cavity (20) and the top of which is matched with the valve stem (3); A sealing gasket (42) is connected to the bottom of the push rod (41) and can be inserted into and abut against the inner circumference of the limiting ring (24) by the movement of the valve stem (3) and the push rod (41) to disconnect the first air outlet channel; An elastic member is connected between the push rod (41) and the limiting ring (24) to push the push rod (41) to reset.

3. The plug valve according to claim 1, characterized in that: The outer ring air outlet component (11) comprises: A first straight pipe (111) connected to the outer ring air outlet of the valve body (10); A first inclined tube (112), the air inlet end of which is connected to a side of the first straight tube (111) close to the air outlet end, and the air outlet end is inclined in a direction away from the valve body (10) and the inner ring air outlet assembly (12); An air outlet pipe (113) is connected to the air outlet end of the first inclined pipe (112).

4. The plug valve according to claim 3, characterized in that: The air outlet pipe (113) comprises: A first air outlet branch pipe (1131), the air inlet end of which is connected to the air outlet end of the first inclined pipe (112) to form an outer ring channel; A second air outlet branch pipe (1132) is located between the first air outlet branch pipe (1131) and the inner ring air outlet assembly (12), with its air inlet end connected to a side of the first air outlet branch pipe (1131) close to the first inclined pipe (112), and its air outlet end connected to a side of the first air outlet branch pipe (1131) close to its air outlet end, for forming a stir-frying channel; The central axis of the first air outlet branch pipe (1131) is parallel to the central axis of the air outlet end of the inner ring channel (120), and the central axis of the first air outlet branch pipe (1131) and the central axis of the first straight pipe (111) are perpendicular to each other and form a plane A.

5. The plug valve according to claim 4, characterized in that: The gas outlet end of the first inclined tube (112) is connected to a first flange (1121) for connecting to the gas outlet pipe (113), and the thickness of the first flange (1121) is greater than or equal to 5 mm.

6. The plug valve according to claim 5, characterized in that: The angle between the long side of the first flange (1121) and the plane A is a, wherein 20°≤a≤90°.

7. The plug valve according to claim 4, characterized in that: The valve body (1) further comprises a first electromagnetic valve (14) for controlling the on and off of the stir-frying channel, wherein the first electromagnetic valve (14) comprises: A valve seat (141) connected to a side of the first gas outlet branch pipe (1131) away from the inner ring gas outlet assembly (12); The sealing head is inserted into the first air outlet branch pipe (1131) and can open or close the air inlet end of the second air outlet branch pipe.

8. The plug valve according to claim 7, characterized in that: The air outlet pipe (113) is provided with a second flange (1133) for connecting the first inclined pipe (112) and a third flange (1134) for installing the first solenoid valve (14), the second flange (1133) and the third flange (1134) are staggered, and the angle between the long side of the third flange (1134) and the plane A is b, wherein 20°≤b≤90°.

9. The plug valve according to claim 1, characterized in that: An air intake assembly (13) is connected to the upper portion of the side wall of the valve body (10), and the air intake assembly (13) comprises: A cylindrical body (131) connected to the valve body (10), and having a blind hole (1311) formed on a side of the cylindrical body away from the valve body (10); The trapezoidal body (132) is located below the cylindrical body (131), connected between the valve body (10) and the cylindrical body (131), and is provided with an inclined hole (1321). The air inlet end of the inclined hole (1321) is connected to the blind hole (1311), and the air outlet end of the inclined hole (1321) is inclined from top to bottom toward the direction of the valve body (10) and is connected to the air inlet hole (21); Wherein, the blind hole (1311) and the inclined hole (1321) are connected to form an air intake passage connected to the air intake hole (21).

10. The plug valve according to claim 1, characterized in that: The inner ring air outlet assembly (12) comprises a second inclined tube (121) and a second straight tube (122), one end of the second inclined tube (121) being connected to the inner ring air outlet hole (23), and the other end of the second inclined tube (121) extending toward the top of the valve body (10) and connected to the second straight tube (122).

11. The plug valve according to claim 10, characterized in that The air inlet end of the second straight pipe (122) is connected to the air outlet end of the second inclined pipe (121), and a connecting block (123) is connected between the second straight pipe (122), the second inclined pipe (121) and the valve body (1).

12. The plug valve according to claim 1, characterized in that It also includes a gear assembly (5), wherein the gear assembly (5) includes: A gear shifter (51) connected to one end of the valve core (2) close to the valve stem (3); A positioning assembly (52) is connected to a side of the top of the valve body (10) away from the outer ring air outlet assembly (11), and cooperates with the gear shifter (51) to achieve gear switching.

13. The plug valve according to claim 12, characterized in that Also includes: A valve cover (6) connected to the top of the valve body (10); A first micro switch, connected to the valve cover (6), for generating an ignition signal; A second micro switch is connected to the top periphery of the valve body (1) near one side of the inner ring air outlet assembly (12) and is used to sense whether the valve core (2) is in a stir-frying position, wherein the top periphery of the valve body (1) is connected to a first mounting plate (14) for mounting the first micro switch.

14. The plug valve according to claim 13, characterized in that The valve cover (6) comprises: Top plate (61); an arc-shaped plate (62), the top of which is fixed to the top plate (61), and the bottom of which is connected to the area of ​​the valve body (1) located between the positioning assembly (52) and the first mounting plate (14), wherein the central angle of the arc-shaped plate (62) is greater than 90°; A second mounting plate (63), one end of which is connected to a region of the top plate (61) corresponding to the opening of the arc-shaped plate (62), and the other end of which extends toward the outside of the valve cover (6), and the second micro switch is connected to the outside of the second mounting plate (63); A gap (64) is provided between the second mounting plate (63) and the arc-shaped plate (62) for the positioning assembly (52) to pass through, so that when the valve cover (6) is connected to the valve body (1), the positioning assembly (52) can be inserted into and pass through the gap (64).

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