Multi-gear electric control oven valve

Abstract

A multi-gear electric control oven valve comprises a valve cover, a valve body, a cavity cover, a valve rod, a pressing plate, a driving rod, a spring, a microswitch, a manual valve element, an electric valve element, a motor, an ejector rod assembly and an electromagnetic valve assembly. The driving rod is fixed with the valve rod; the valve rod extends out of a valve rod channel; one end of the spring is matched with the gear valve core; the other end of the spring is matched with the driving rod; the driving rod is in in-out fit with the radial driving groove of the driving sleeve; and the cavity cover and the air guide cavity are buckled and sealed. By adopting the layout, the valve body is high in die-casting yield and convenient to machine; the pilot flame gas guide groove of the manual control valve element is directly communicated with the gas guide cavity, the pilot flame gas guide groove and the electric control valve part do not influence each other, and power conversion can be achieved.

Description

Technical Field

[0001] The utility model relates to a gas gear valve, in particular to an oven valve combining manual and electric control. Background Art

[0002] In the current prior art, Chinese Patent No. 201821346018.7, a multi-gear gas regulating valve for a gas oven, includes a valve body, a valve cover, a valve core, a valve rod, a pressing plate and a pressure spring; the air guide holes on the valve core cavity are divided into a first air outlet interface, a second air outlet interface and a third air outlet interface, the second air outlet interface is located above the first air outlet interface, and the third air outlet interface is located below the first air outlet interface; the air guide holes on the valve core are divided into a first air guide hole group, a second air guide hole group and a third air guide hole group; the first air guide hole group, the second air guide hole group and the third air guide hole group respectively correspond to the first air outlet interface, the second air outlet interface and the third air outlet interface. The problems are: there is no pilot flame to ignite, and the power conversion cannot be automatically realized. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a multi-gear electric control oven valve, which has the characteristics of separate control of the pilot flame, not affected by the electric control valve, and realizing power conversion.

[0004] The utility model is realized as follows: a multi-gear electric control oven valve, which is characterized in that: it includes a valve cover, a valve body, a cavity cover, a valve rod, a pressing plate, a driving rod, a spring, a micro switch, a manual valve core, an electric valve core, a motor, a push rod assembly and a solenoid valve assembly.

[0005] The valve cover includes a valve rod channel, a side guide hole and a side guide limiting cavity.

[0006] The valve body includes a gear valve core cavity, an electric valve core cavity, a solenoid valve seat, a push rod cavity, an air guide cavity with an upper opening, a pilot flame outlet pipe, a first outlet pipe, a second outlet pipe and a third outlet pipe. The gear valve core cavity and the electric valve core cavity are in a straight line and communicate with each other. The solenoid valve seat is arranged on one side of the gear valve core cavity and the electric valve core cavity; the valve core seat of the solenoid valve seat communicates with the push rod cavity; the pilot flame outlet pipe, the second outlet pipe, the first outlet pipe and the third outlet pipe are sequentially arranged on the gear valve core cavity from back to front. The pilot flame outlet pipe and the third outlet pipe are located on one side, and the second outlet pipe and the first outlet pipe are arranged up and down; the pilot flame air guide hole communicates the gear valve core cavity and the air guide cavity; the air guide cavity communicates with the valve core seat and the electric valve core cavity, and an air inlet interface is arranged on the solenoid valve seat.

[0007] The manual valve core includes a driving sleeve and an air inlet cavity with an open end. The air inlet cavity is provided with a pilot flame air guide groove, a first air outlet hole group, a second air outlet hole group and a third air outlet hole group.

[0008] The manual valve core and the electric valve core are respectively arranged in the gear valve core cavity and the electric valve core cavity and are connected. The pilot flame gas guiding groove is matched with the pilot flame gas guiding hole and the pilot flame gas outlet pipe. The solenoid valve assembly is arranged in the solenoid valve seat, the ejector rod assembly is arranged in the ejector rod cavity and is matched with the solenoid valve core of the solenoid valve assembly; The motor is fixed to the electric valve core cavity and drives the electric valve core. The valve cover is fixed to the gear valve core cavity. The pressing plate is rotationally matched with the valve rod, the driving rod is fixed to the valve rod, and the valve rod extends out from the valve rod channel. One end of the spring is matched with the gear valve core, and the other end is matched with the driving rod. One end of the pressing plate extends out from the side guiding hole and is matched with the micro switch, and the other end is located in the side guiding limit cavity and is matched with the ejector rod assembly. The driving rod is matched with the radial driving groove of the driving sleeve for entry and exit; The cavity cover is buckled and sealed with the air guiding cavity.

[0009] The multi-gear electric control oven valve described above is characterized in that: a circular air inlet hole is provided at the top of the electric valve core cavity; The air guiding cavity extends to the top of the electric valve core cavity and is communicated with the circular air inlet hole;

[0010] The electric valve core includes an electric control air cavity with one end open and an electric control driving part. The electric control air cavity includes a circular air guiding hole, a medium-fire circular arc air guiding groove and a medium-fire hole, and a small-fire circular arc air guiding groove and a small-fire hole. The medium-fire circular arc air guiding groove and the small-fire circular arc air guiding groove are parallel and staggered at both ends.

[0011] The multi-gear electric control oven valve described above is characterized in that: a circular counterbore is provided at the end of the small-fire circular arc air guiding groove, and the small-fire hole is provided on the bottom plate of the circular counterbore; The circular counterbore and the circular air guiding hole are on the same circumference.

[0012] The multi-gear electric control oven valve described above is characterized in that: two snap ring grooves are provided on the valve rod, a circular seat is provided on the pressing plate, and a circular hole is provided on the circular seat;

[0013] It also includes a snap ring,

[0014] The circular seat is arranged on the valve rod between the two snap ring grooves and is rotationally matched. The snap ring is fitted with the snap ring groove and is attached to the circular seat.

[0015] The multi-gear electric control oven valve described above is characterized in that: the ejector rod assembly includes an ejector rod, a return spring, a washer and a sealing ring,

[0016] The ejector rod includes a head and a rod body part,

[0017] A counterbore is provided at the connection of the ejector rod cavity and the solenoid valve seat;

[0018] The sealing ring is arranged in the counterbore, and the washer covers the counterbore; The rod body part passes through the return spring washer and the sealing ring and extends into the solenoid valve seat to be matched with the solenoid valve core of the solenoid valve assembly; The head is matched with the pressing plate.

[0019] The described multi - gear electric control oven valve is characterized in that: the central angle of the pilot - flame air - guiding groove is greater than 260 degrees; in the static state, the manual valve core between the two ends of the pilot - flame air - guiding groove closes the pilot - flame air - guiding hole, one end of the pilot - flame air - guiding groove is located in the first quadrant and the other end is located in the fourth quadrant;

[0020] The first air - guiding hole group includes a first circular air - guiding hole and a second circular air - guiding hole, which are respectively located in the first quadrant and the second quadrant;

[0021] The second air - guiding hole group includes a small circular air - hole and a large circular air - hole, and is respectively located in the second quadrant and the fourth quadrant;

[0022] The third air - guiding hole group includes an arc - shaped air - guiding hole, one end is located in the first quadrant and the other end is located in the second quadrant.

[0023] The described multi - gear electric control oven valve is characterized in that: when the manual valve core rotates 60 degrees, the pilot - flame gas outlet pipe discharges gas;

[0024] When it rotates another 60 degrees, the second circular air - guiding hole is communicated with the first gas outlet pipe, the large circular air - hole is communicated with the second gas outlet pipe, and the arc - shaped air - guiding hole is communicated with the third gas outlet pipe; this is the first gear;

[0025] When it rotates another 60 degrees, the large circular air - hole is communicated with the second gas outlet pipe, and the arc - shaped air - guiding hole is communicated with the third gas outlet pipe; this is the second gear;

[0026] When it rotates another 60 degrees, the first circular air - guiding hole is communicated with the first gas outlet pipe, and the arc - shaped air - guiding hole is communicated with the third gas outlet pipe; this is the third gear;

[0027] When it rotates another 60 degrees, the large circular air - hole is communicated with the second gas outlet pipe; this is the fourth gear.

[0028] The described multi - gear electric control oven valve is characterized in that: it further includes a gear lever arranged on the valve stem;

[0029] On the end plate inside the valve cover, there are a stop block and five arc - shaped gear blocks evenly distributed. The gap between the stop block and the circular plate - shaped gear block forms a stop groove, and the gap between the arc - shaped gear blocks forms a gear groove; the thickness of the stop block in the axial direction is greater than the thickness of the arc - shaped gear block in the axial direction;

[0030] The gear lever cooperates with the stop groove, the gear lever cooperates with the gear groove, and the gear lever slides from one gear groove over the arc - shaped gear block into another gear groove.

[0031] The described multi - gear electric control oven valve is characterized in that: in the static state, the electric valve core closes the circular air - inlet hole of the electric valve core cavity, or the circular air - guiding hole is communicated with the circular air - inlet hole.

[0032] A multi - gear electric control oven valve described above is characterized in that: a plurality of radial air guide holes distributed on the same circumference are provided on the gear valve core cavity and communicated with the pilot - light gas outlet pipe.

[0033] For a multi - gear electric control oven valve of the present utility model, the valve body is arranged in such a way that the die - casting yield is high and the machining is convenient; the pilot - light gas guide groove of the manual control valve core is directly communicated with the gas guide cavity, which does not affect the electric control valve part, and power conversion can also be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is the exploded perspective view of the present utility model.

[0035] Figure 2 is the perspective view of the valve body of the present utility model.

[0036] Figure 3 is the perspective sectional view of the valve body of the present utility model.

[0037] Figure 4 is the perspective view of the present utility model.

[0038] Figure 5 is the gear rotation diagram of the present utility model in the working state.

[0039] Figure 6 is one of the perspective views of the electric valve core of the present utility model.

[0040] Figure 7 is the other perspective view of the electric valve core of the present utility model.

[0041] Figure 8 is the front view of the present utility model.

[0042] Figure 9 is Figure 8 the A - A view of

[0043] Figure 10 is Figure 9 the B - B view of

[0044] Figure 11 is Figure 10 the C - C view of

[0045] Figure 12 is Figure 9 the D - D view of

[0046] Figure 13 is Figure 9 the E - E view of

[0047] Figure 14 is Figure 10 the F - F view of

[0048] Figure 15 is Figure 9 the G - G view of

[0049] Figure 16 is Figure 10 the H - H view of

[0050] Figure 17 is the perspective view of the valve cover. Detailed implementation mode

[0051] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0052] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0053] As Figure 1 shown, a multi - gear electric control oven valve includes a valve cover 1, a valve body 2, a cavity cover 3, a valve rod 4, a pressing plate 5, a driving rod 6, a spring 7, a micro - switch 8, a manual valve core 9, an electric valve core 10, a motor 11, a push rod assembly 12, and a solenoid valve assembly 13.

[0054] The valve cover 1 includes a valve rod channel 1A, a side guide hole 1B, and a side guide limit cavity 1C.

[0055] As Figure 2 , Figure 3 shown, the valve body 2 includes a gear valve core cavity 21, an electric valve core cavity 22, a solenoid valve seat 23, a push rod cavity 24, an air - guiding cavity 25 with an upper opening, a long - live fire gas outlet pipe 26, a first gas outlet pipe 271, a second gas outlet pipe 272, and a third gas outlet pipe 273. The gear valve core cavity 21 and the electric valve core cavity 22 are in a straight line and communicate with each other. The solenoid valve seat 23 is arranged on one side of the gear valve core cavity 21 and the electric valve core cavity 22; the valve core seat 231 of the solenoid valve seat 23 communicates with the push rod cavity 24; as Figure 4As shown in the figure, the pilot gas outlet pipe 26, the second outlet pipe 272, the first outlet pipe 271, and the third outlet pipe 273 are arranged on the gear valve core cavity 21 in sequence from back to front, that is, arranged in sequence from the positive direction to the negative direction of the Y axis; the pilot gas outlet pipe 26 and the third outlet pipe 273 are located on one side, that is, on the negative side of the X axis; the second outlet pipe 272 and the first outlet pipe 271 are arranged up and down, that is, the second outlet pipe 272 is located in the positive direction of the Z axis and the first outlet pipe 271 is located in the negative direction of the Z axis; the pilot gas guide hole 28 connects the manual valve core cavity 21 and the gas guide cavity 25; the gas guide cavity 25 is connected to the valve core seat 231 of the solenoid valve seat 23 and the electric valve core cavity 22, and an air inlet interface is provided on the solenoid valve seat 23; with such a layout of the valve body, the mold structure is simple, the product qualification rate is high, and the machining is convenient;

[0056] The manual valve core 9 includes a driving sleeve 91 and an air inlet cavity 92 with an open end. The diameter of the air inlet cavity is larger than that of the driving sleeve 91. The air inlet cavity 92 is provided with a pilot gas guide groove 92A, a first air outlet hole group, a second air outlet hole group, and a third air outlet hole group.

[0057] The manual valve core 9 and the electric valve core 10 are respectively arranged in the gear valve core cavity 21 and the electric valve core cavity 22 and are connected. The pilot gas guide groove 92A cooperates with the pilot gas guide hole 28 and the pilot gas outlet pipe 26. The solenoid valve assembly 13 is arranged in the solenoid valve seat 23, the ejector rod assembly 12 is arranged in the ejector rod cavity 24 and cooperates with the solenoid valve core of the solenoid valve assembly 13; the motor 11 is fixed to the electric valve core cavity 22 and drives the electric valve core 10. The valve cover 1 is fixed to the manual valve core cavity 21. The pressing plate 5 is rotationally matched with the valve rod 4, the driving rod 6 is fixed to the valve rod 4, and the valve rod 4 extends out of the valve rod channel 1A. One end of the spring 7 cooperates with the manual valve core 9 and the other end cooperates with the driving rod 6, that is, the driving sleeve 91 is inserted into the spring 7, and the end of the air inlet cavity 92 cooperates with the spring 7; one end of the pressing plate 5 extends out of the side guide hole 1B and cooperates with the microswitch 8, and the other end is located in the side guide limiting cavity 1C and cooperates with the ejector rod assembly 12. The driving rod 6 is in and out of cooperation with the radial driving groove of the driving sleeve 91; the cavity cover 3 is buckled and sealed with the gas guide cavity 25;

[0058] With such a structure, in the electric valve part, statically, whether in the conducting state or the cut-off state, when the manual valve core 9 rotates, the pilot flame ignition can be realized, and the pilot flame and the electric control valve part do not interfere with each other. After selecting the appropriate gear, the electric valve can be set through the main control board to realize the conversion of the total gas volume control.

[0059] As Figure 3 、 Figure 11 As shown in the figure, a plurality of radial guide holes 261 distributed on the same circumference are provided on the gear valve core cavity 21 and are connected to the pilot gas outlet pipe 26; in this embodiment, radial guide holes 261 are provided. With such a structure, it is beneficial to improve the sealing performance.

[0060] As a further improvement of the present utility model: As Figure 2 , Figure 3 shown, a circular air inlet hole 221 is provided at the top of the electric valve core cavity 22; the air guide cavity 25 extends to the top of the electric valve core cavity 22 and communicates with the circular air inlet hole 221; the channel of the air guide cavity 25 structure is large enough and can effectively reduce the gas pressure drop, which can solve combustion problems such as backfire and difficult ignition; it ensures that two kinds of fuels, natural gas and liquefied gas, can be used.

[0061] As Figure 6 , Figure 7 shown, the electric valve core 10 includes an electric control air cavity 101 with one end open and an electric control driving part 102. The electric control air cavity 101 includes a circular air guide hole 103, a medium-fire circular arc air guide groove 104 and a medium-fire hole 1041, and a small-fire circular arc air guide groove 105 and a small-fire hole 1051. The medium-fire circular arc air guide groove 104 and the small-fire circular arc air guide groove 105 are parallel and staggered at both ends; the medium-fire hole 1041 is arranged at one end of the medium-fire circular arc air guide groove 104 adjacent to the circular air guide hole 103, and the small-fire hole 1051 is arranged at one end of the small-fire circular arc air guide groove 105 far from the circular air guide hole 103; the air outlet end of the electric control air cavity 101 is opposite to the air inlet end of the air inlet cavity 92;

[0062] It can be set to the initial state, the circular air guide hole 103 and the circular air inlet hole 221 are opposite, which is the high-fire state; when the electric valve core 10 rotates, the circular air inlet hole 221 communicates with the medium-fire circular arc air guide groove 104 and the small-fire circular arc air guide groove 105, which is the medium-fire state; when it continues to rotate, the circular air inlet hole 221 communicates with the small-fire circular arc air guide groove 105, which is the small-fire state. With such a structure, when the electric control valve core 10 rotates and the power is converted, the gas volume changes linearly and continuously; in the state where the gear is determined, the electric control valve can realize the conversion between high-fire, medium-fire or small-fire.

[0063] As a further improvement of the present utility model: a circular counterbore 1052 is provided at the end of the small-fire circular arc air guide groove 105, and the small-fire hole 1051 is arranged on the bottom plate of the circular counterbore 1052; the circular counterbore 1052 and the circular air guide hole 103 are on the same circumference. The diameters of the circular counterbore 1052, the circular air guide hole 103 and the circular air inlet hole 221 are the same.

[0064] As a further improvement of the present utility model: two snap spring grooves are provided on the valve stem 4, a circular seat 51 is provided on the pressing plate 5, and a circular hole is provided on the circular seat 51;

[0065] It also includes a snap spring 14,

[0066] The circular seat 51 is arranged on the valve stem 4 between the two snap spring grooves and is in rotational fit, and the snap spring 14 is engaged with the snap spring groove and is in contact with the circular seat 51. The valve stem and the circular seat are in rotational fit.

[0067] As shown in Figure 10 Figure, the ejector rod assembly 12 includes an ejector rod 121, a return spring 122, a washer 123 and a sealing ring 124.

[0068] The ejector rod 121 includes a head 1211 and a rod body portion 1212.

[0069] A counterbore is provided at the connection between the ejector rod cavity 24 and the valve core seat 231 of the solenoid valve seat 23.

[0070] The sealing ring 124 is arranged in the counterbore, and the washer 123 covers the counterbore; the rod body portion 1212 passes through the return spring 122, the washer 123 and the sealing ring 124 and extends into the valve core seat 231 of the solenoid valve seat 23 to cooperate with the solenoid valve core of the solenoid valve assembly 13; one end of the return spring 122 cooperates with the washer, and the other end cooperates with the head 1211, and the head 1211 extends out of the ejector rod cavity 24 to cooperate with the pressing plate 5; one end of the pressing plate 5 cooperates with the head 1211.

[0071] As a further improvement of the present utility model: As shown in Figure 11 Figure, the central angle of the pilot gas guide groove 92A is greater than 260 degrees; in the static state, the intake cavity 92 of the manual valve core 9 between the two ends of the pilot gas guide groove 92A closes the pilot gas hole 28, and one end of the pilot gas guide groove 92A is located in the first quadrant and the other end is located in the fourth quadrant.

[0072] As shown in Figure 13 Figure, the first gas guide hole group includes a first circular gas guide hole 9211 and a second circular gas guide hole 9212 and are respectively located in the first quadrant and the second quadrant.

[0073] As shown in Figure 12 Figure, the second gas guide hole group includes a small circular gas hole 9221 and a large circular gas hole 9222 and are respectively located in the second quadrant and the fourth quadrant.

[0074] As shown in Figure 14 Figure, the third gas guide hole group includes an arc-shaped gas guide hole 923, one end is located in the first quadrant and the other end is located in the second quadrant.

[0075] When the present utility model is in use, as shown in Figure 4 Figure: Press the valve rod, and the valve rod 4 and the pressing plate 5 move along the Y direction. In Figure 10 Figure, the valve rod 4 and the pressing plate 5 move to the right. One end of the pressing plate 5 moves in the side guide hole 1B and the other end moves in the side guide limiting cavity 1C. Then one end presses the elastic piece of the microswitch and the other end presses the head 1211 of the ejector rod 121. The ejector rod 121 is in Figure 10When moving to the right, the rod body 1212 drives the solenoid valve core 131 of the solenoid valve assembly 13, and the solenoid valve core 131 leaves the valve core seat 231. The gas enters the air guide cavity 25 through the air inlet interface, the solenoid valve seat 23, and the valve core seat 231, then enters the electric valve core cavity 22, and then enters the electric control air cavity 101;

[0076] In Figure 4 In this state, after pressing the valve rod 4 and then rotating the valve rod 4 counterclockwise, the manual valve core 9 rotates 60 degrees, and the long flame air guide groove 92A connects the long flame air guide hole 28 and the long flame air outlet pipe 26. The long flame air outlet pipe 26 emits gas and ignites the long flame;

[0077] Continuing to rotate 60 degrees, the second circular air guide hole 9212 is communicated with the first air outlet pipe 271, the large circular air hole 922 is communicated with the second air outlet pipe 272, and the arc-shaped air guide hole 923 is communicated with the third air outlet pipe 273; this is the first gear;

[0078] Continuing to rotate 60 degrees, the large circular air hole 922 is communicated with the second air outlet pipe 272, and the arc-shaped air guide hole 923 is communicated with the third air outlet pipe 273; this is the second gear;

[0079] Continuing to rotate 60 degrees, the first circular air guide hole 9211 is communicated with the first air outlet pipe 271, and the arc-shaped air guide hole 923 is communicated with the third air outlet pipe 273; this is the third gear;

[0080] Continuing to rotate 60 degrees, the large circular air hole 922 is communicated with the second air outlet pipe 272; this is the fourth gear;

[0081] In the above-mentioned gear states, for the electric control valve part, it can perform conversions between high fire, medium fire, and low fire; the temperature sensing system of the oven gives a signal to the motor, and the motor drives the electric valve core 10 to linearly adjust the gas flow, thereby realizing temperature control; that is, a baking oven valve with an intelligent temperature control system. Specifically, it is realized as follows: when the temperature sensing system senses a temperature decrease, it will give a positive rotation feedback signal to the motor, causing the motor valve core 10 to rotate to the position of appropriate high fire; when it senses a temperature increase, it will give a reverse rotation feedback signal to the motor, causing the motor valve core 10 to rotate to the position of appropriate low fire.

[0082] As a further improvement of the present utility model: it further includes a gear lever 15 provided on the valve rod 4;

[0083] As Figure 16 As shown, on the end plate inside the valve cover 1, there are provided a stop block 1D and five arc-shaped gear blocks 1E evenly distributed. The gap between the stop block 1D and the circular plate-shaped gear block 1E forms a stop groove 1F, and the gap between the arc-shaped gear blocks 1E and the arc-shaped gear blocks 1E forms a gear groove; the thickness of the stop block 1D in the axial direction is greater than the thickness of the arc-shaped gear block 1E in the axial direction;

[0084] The gear lever 15 cooperates with the stop groove 1F. The gear lever 15 cooperates with the gear groove and slides from one gear groove over the arc-shaped gear block 1E into another gear groove to achieve gear shifting. Figure 16 It is a view in a static state, i.e., the valve-closed state;

[0085] When the electric valve core 10 is in a static state, it closes the circular air inlet hole 221 of the electric valve core cavity 22, or the circular air guide hole 103 communicates with the circular air inlet hole 221.

[0086] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A multi-position electric-controlled oven valve, characterized in that: Including valve cover, valve body, cavity cover, valve stem, pressure plate, drive rod, spring, micro switch, manual valve core, electric valve core, motor, push rod assembly and solenoid valve assembly, The valve cover includes a valve stem channel, a side guide hole and a side guide limit cavity. The valve body comprises a gear valve core cavity, an electric valve core cavity, an electromagnetic valve seat, a push rod cavity, an upper opening air guide cavity, a long-fire air outlet pipe, a first air outlet pipe, a second air outlet pipe and a third air outlet pipe. The gear valve core cavity and the electric valve core cavity are in a straight line and connected. The electromagnetic valve seat is arranged on one side of the gear valve core cavity and the electric valve core cavity; the valve core seat of the electromagnetic valve seat is connected to the push rod cavity; the long-fire air outlet pipe, the second air outlet pipe, the first air outlet pipe and the third air outlet pipe are arranged in sequence from back to front on the gear valve core cavity, the long-fire air outlet pipe and the third air outlet pipe are located on one side, and the second air outlet pipe and the first air outlet pipe are arranged up and down; the long-fire air guide hole connects the gear valve core cavity and the air guide cavity; the air guide cavity is connected to the valve core seat and the electric valve core cavity, and an air inlet interface is provided on the electromagnetic valve seat; The manual valve core comprises a driving sleeve and an air inlet cavity with an opening at one end, wherein the air inlet cavity is provided with a long-fire air guide groove, a first air outlet hole group, a second air outlet hole group and a third air outlet hole group. The manual valve core and the electric valve core are respectively arranged in the gear valve core cavity and the electric valve core cavity and are connected, the long-fire air guide groove cooperates with the long-fire air guide hole and the long-fire air outlet pipe, the solenoid valve assembly is arranged in the solenoid valve seat, the push rod assembly is arranged in the push rod cavity, and the solenoid valve core of the solenoid valve assembly cooperates; the motor is fixed to the electric valve core cavity and drives the electric valve core, the valve cover is fixed to the gear valve core cavity, the pressure plate and the valve stem rotate in cooperation, the drive rod and the valve stem are fixed, the valve stem extends from the valve stem channel, one end of the spring cooperates with the gear valve core, and the other end cooperates with the drive rod, one end of the pressure plate extends out from the side guide hole and cooperates with the micro switch, the other end is located in the side guide limit cavity and cooperates with the push rod assembly, the drive rod and the radial drive groove of the drive sleeve cooperate in and out; the cavity cover is buckled and sealed with the air guide cavity.

2. The multi-position electric-controlled oven valve according to claim 1, characterized in that: A circular air inlet hole is provided at the top of the electric valve core cavity; the air guide cavity extends to the top of the electric valve core cavity and is connected to the circular air inlet hole; The electric valve core includes an electrically controlled air cavity with an opening at one end and an electrically controlled drive unit. The electrically controlled air cavity includes a circular air guide hole, a medium-fire arc-shaped air guide groove and a medium-fire hole and a small-fire arc-shaped air guide groove and a small-fire hole. The medium-fire arc-shaped air guide groove and the small-fire arc-shaped air guide groove are parallel and staggered at both ends.

3. The multi-position electric-controlled oven valve according to claim 2, characterized in that: A circular countersunk hole is arranged at the end of the small-fire arc-shaped air guide groove, and the small-fire hole is arranged on the bottom plate of the circular countersunk hole; the circular countersunk hole and the circular air guide hole are on a circumference.

4. The multi-position electric-controlled oven valve according to claim 1, characterized in that: The valve stem is provided with two retaining ring grooves, the pressure plate is provided with a circular seat, and the circular seat is provided with a circular hole; Also includes a retaining spring, The circular seat is arranged on the valve stem between the two retaining ring grooves and is rotationally matched, and the retaining ring is embedded in the retaining ring groove and fits the circular seat.

5. The multi-position electric-controlled oven valve according to claim 1, characterized in that: The ejector assembly comprises an ejector, a return spring, a washer and a sealing ring. The top rod includes a head and a rod body. A countersunk hole is provided at the connection point between the push rod cavity and the valve core seat of the solenoid valve seat; The sealing ring is arranged in the countersunk hole, and the gasket covers the countersunk hole; the rod body passes through the reset spring gasket and the sealing ring and extends into the valve core seat of the electromagnetic valve seat to cooperate with the electromagnetic valve core of the electromagnetic valve assembly; the head part cooperates with the pressure plate.

6. The multi-position electric-controlled oven valve according to claim 1, characterized in that: The central angle of the pilot light gas guide groove is greater than 260 degrees; in static state, the manual valve core between the two ends of the pilot light gas guide groove closes the pilot light gas guide hole, one end of the pilot light gas guide groove is located in the first quadrant, and the other end is located in the fourth quadrant; The first air outlet hole group includes a first circular air guide hole and a second circular air guide hole and are respectively located in the first quadrant and the second quadrant; The second air outlet group includes small circular air holes and large circular air holes, and are located in the second quadrant and the fourth quadrant respectively; The third air outlet hole group includes an arc-shaped air guide hole, one end of which is located in the first quadrant and the other end of which is located in the second quadrant.

7. The multi-position electric-controlled oven valve according to claim 6, characterized in that: The manual valve core rotates 60 degrees, and the open flame outlet pipe is used to discharge gas; Continue to rotate 60 degrees, the second circular air guide hole is connected to the first air outlet pipe, the large circular air hole is connected to the second air outlet pipe, and the arc-shaped air guide hole is connected to the third air outlet pipe; this is the first gear position; Continue to rotate 60 degrees, the large circular air hole is connected to the second air outlet pipe, and the arc-shaped air guide hole is connected to the third air outlet pipe; this is the second gear; Continue to rotate 60 degrees, the first circular air guide hole is connected to the first air outlet pipe, and the arc-shaped air guide hole is connected to the third air outlet pipe; this is the third gear; Continue to rotate 60 degrees, the large circular air hole is connected to the second air outlet pipe; this is the fourth gear.

8. The multi-position electric-controlled oven valve according to claim 6, characterized in that: Also included is a shift lever disposed on the valve stem; A stop block and five evenly distributed arc-shaped shift blocks are provided on the end plate in the valve cover; the gap between the stop block and the circular plate-shaped shift block constitutes a stop groove, and the gap between the arc-shaped shift blocks constitutes a shift groove; the thickness of the stop block in the axial direction is greater than the thickness of the arc-shaped shift block in the axial direction; The shift lever cooperates with the stop groove, the shift lever cooperates with the shift groove, and the shift lever slides from one shift groove through the arc-shaped shift block into another shift groove.

9. The multi-position electric-controlled oven valve according to claim 2, characterized in that: When the electric valve core is static, the circular air inlet hole of the electric valve core cavity is closed, or the circular air guide hole is connected to the circular air inlet hole.

10. The multi-position electric-controlled oven valve according to claim 6, characterized in that: The gear valve core cavity is provided with a plurality of radial air guide holes distributed on the same circumference and connected with the pilot flame air outlet pipe.

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