Gas valve with three-channel structure

Abstract

The utility model relates to the technical field of gas valve, propose a kind of gas valve with three pass structure, comprising: valve body, the valve body is equipped with air inlet passageway, air passage, first gas channel, second gas channel and ignition passageway;Ball valve core subassembly, the ball valve core subassembly is arranged in air passage, ball valve core subassembly is used to adjust the opening and closing of air inlet passageway outlet and is used to cooperate the air passage of first gas channel, second gas channel and ignition passageway;Main shaft, the main shaft is connected with ball valve core subassembly and is used to drive ball valve core subassembly rotation.The first gas channel is inclined or vertically arranged on valve body.By setting first gas channel, second gas channel and ignition passageway, the diversity of gas valve firepower regulation function is significantly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of gas valves, specifically to a gas valve with a three-channel structure. Background Technology

[0002] Chinese Patent No. ZL202222607503.8 discloses a flameout protection gas valve, including a valve body, a solenoid valve on one side of the valve body, an air inlet corresponding to the solenoid valve, a valve cavity within the valve body, a valve sleeve assembly rotatably connected within the valve cavity, an air outlet on one side of the valve cavity, an upper fixing bolt extending into the valve cavity on the top surface of the valve body, and a lower fixing bolt extending into the valve cavity on the bottom surface of the valve body. The upper and lower fixing bolts are on the same axis and abut against the end of the valve sleeve assembly. An ignition assembly is provided on one side of the valve body. The flameout protection gas valve provided by this utility model facilitates valve sleeve installation, facilitates adjustment of valve sleeve concentricity, and effectively improves ignition efficiency.

[0003] This flameout protection gas valve has only two channels: one is the ignition channel, and the other is the gas channel that outputs gas to the gas stove burner, making the flame adjustment relatively simple. Utility Model Content

[0004] This invention proposes a gas valve with a three-channel structure. By setting up a first gas channel, a second gas channel, and an ignition channel, the versatility of the gas valve's flame control function is significantly improved. The first gas channel serves as the low-flame channel for the gas stove, allowing users to stably obtain a suitable low flame source when cooking dishes that require slow simmering or precise heat control, such as soups or fried eggs. The second gas channel works in conjunction with the first gas channel to form the high-flame channel, providing strong heat for cooking scenarios requiring high heat, such as stir-frying, to quickly cook food. The ignition channel is used to introduce gas to the ignition needle assembly during the gas valve's ignition process.

[0005] A gas valve with a three-channel structure designed for this purpose includes:

[0006] The valve body is provided with an air intake channel, an air passage, a first gas passage, a second gas passage and an ignition channel.

[0007] A ball valve core assembly is disposed in the ventilation chamber. The ball valve core assembly is used to adjust the opening and closing of the air outlet end of the air inlet channel and to coordinate the ventilation of the first gas passage, the second gas passage and the ignition channel.

[0008] The main shaft is connected to the ball valve core assembly and is used to drive the ball valve core assembly to rotate.

[0009] The first gas passage is installed on the valve body at an angle or vertically.

[0010] The valve body is equipped with a switch valve for opening and closing the air intake end of the air intake channel.

[0011] The valve body is equipped with a trigger assembly for cooperating with the spindle to trigger the switching valve to open the intake end of the intake channel.

[0012] The trigger assembly includes a swing block rotatably disposed within the valve body, a rod axially disposed within the valve body, and a connecting block located at the lower part of the rod.

[0013] When the main shaft moves axially toward the rod body in the valve body, it triggers the rod body through the connecting block to drive the swing block to rotate, thereby causing the switching valve to open the air intake end of the air intake channel.

[0014] The switching valve is a solenoid valve;

[0015] The rod is inclinedly disposed within the valve body;

[0016] The trigger assembly is equipped with a first spring that acts on the connecting block, and the main shaft moves up and down elastically axially through the first spring.

[0017] The ball valve core assembly is provided with an air inlet gap and a movable rod assembly for opening and closing the air inlet of the air inlet gap. The movable rod assembly is arranged to move up and down within the air inlet gap.

[0018] The main shaft moves axially within the valve body towards the movable rod assembly to drive the movable rod assembly to move towards the air inlet to open the air inlet gap.

[0019] The movable rod assembly includes a movable rod that moves up and down along the air intake gap, and a sealing ring disposed below the head of the movable rod; the sealing ring closes the air intake port of the air intake gap when the movable rod assembly is in its initial position.

[0020] The ball valve core assembly includes a valve sleeve, and the upper part of the valve sleeve is provided with a first inner cavity for inserting a movable rod. The first inner cavity of the valve sleeve and the outer side of the movable rod form an air intake gap.

[0021] The lower part of the valve sleeve is provided with a second inner cavity for inserting the main shaft, and the outer side of the lower part of the valve sleeve is provided with a first spring;

[0022] The lower part of the movable rod is provided with a sealing sleeve for sealing the installation gap between the valve sleeve and the movable rod;

[0023] The valve sleeve is provided with an opening for connecting to the ignition channel; the opening is located above the sealing sleeve;

[0024] When the air outlet of the air intake channel and the air inlet of the air intake gap are in the open state, the gas passes through the ball valve core assembly along the air intake channel, enters the air intake gap, and is finally output to the ignition channel through the opening.

[0025] The valve body has an assembly cavity that communicates with the venting chamber, and the valve sleeve is installed in the assembly cavity.

[0026] The valve sleeve is provided with a sealing element on the outside for sealing the installation gap between the valve sleeve and the assembly cavity. The valve sleeve is provided with two sealing elements that are spaced apart vertically, and the opening is located between the two sealing elements.

[0027] The lower part of the movable rod is also provided with a second spring that allows the movable rod to move up and down elastically. The movable rod is elastically reset by the second spring to close the air intake port of the air intake gap.

[0028] The ball valve core assembly includes a ball core connected to the valve sleeve, and the valve sleeve and the ball core rotate when the main shaft rotates.

[0029] The sphere is provided with an air intake gradient channel, an internal channel, and a small flame gas outlet, a large flame gas outlet, and an ignition gas outlet that connect to the internal channel.

[0030] The spherical core is provided with a sealing spherical surface for sealing the air outlet end of the air inlet channel;

[0031] The internal channel runs vertically through the inside of the sphere core. The first end of the internal channel opens to form a small flame gas outlet, and the second end of the internal channel opens to form an ignition gas outlet.

[0032] The intake gradient channel includes a slot and a vent located at the end of the slot to form the end output of the intake gradient channel.

[0033] The width of the slot gradually increases from the front to the back of the intake gradient channel.

[0034] The ball core is provided with a ventilation slot, and the ventilation hole and the ventilation slot are arranged opposite each other in an up-down staggered manner. One end of the ventilation slot is open to form an ignition gas outlet.

[0035] The ventilation cavity is equipped with a rotation limiting component for limiting the ball core;

[0036] The rotation limiting assembly includes a first limiting member and a second limiting member arranged at left and right intervals, with the ball core located between the first limiting member and the second limiting member;

[0037] Both the first limiting member and the second limiting member are provided with an arc-shaped groove that matches the spherical surface of the ball core;

[0038] The ventilation slot is a ventilation groove;

[0039] The first limiting member is provided with a first through hole coaxially connected to the air outlet end of the air intake channel; the sealing spherical surface seals the first through hole, the first through hole is used as the air outlet end of the air intake channel, and the first gas passage, the second gas passage and the ignition passage are in a closed state;

[0040] When the first perforation corresponds to the front section of the slot, the first gas passage is opened separately; when the first perforation corresponds to the vent at the end of the slot, the first gas passage and the second gas passage are opened simultaneously.

[0041] The second limiting member is provided with a second through hole for connecting the second gas passage. When the vent groove is misaligned with the second through hole, the second gas passage is in a closed state. When the vent groove is connected with the second through hole, the second gas passage 3 is in an open state.

[0042] The outer diameter of the first perforation is larger than the width of the slot.

[0043] The outer diameter of the second perforation is larger than the width of the ventilation groove, and one end of the ventilation groove extends upward toward the second perforation and is disposed on the inner side of the ball core.

[0044] The beneficial technical effects of this utility model are as follows:

[0045] By incorporating a first gas passage, a second gas passage, and an ignition channel, the versatility of the gas valve's flame control function is significantly enhanced. The first gas passage serves as the low-flame channel for the gas stove, ensuring a stable and suitable low flame for cooking dishes requiring slow simmering or precise heat control, such as soups or fried eggs. The second gas passage, in conjunction with the first, forms the high-flame channel, providing strong heat for stir-frying and other high-heat cooking scenarios, allowing for rapid cooking of ingredients. The ignition channel is used to introduce gas to the ignition needle assembly during the gas valve's ignition process. Attached Figure Description

[0046] Figure 1 This is a three-dimensional structural diagram of the first gas passage in a vertical state according to the first embodiment of this utility model.

[0047] Figure 2 This is a three-dimensional structural diagram of the first embodiment of the present invention, in which the first gas passage is vertical and the second gas passage is provided with a ventilation branch.

[0048] Figure 3 This is a schematic diagram of the structure of the intake channel input end in the open state according to the first embodiment of this utility model.

[0049] Figure 4 This is a schematic diagram of the ignition channel in the first embodiment of the present invention in the open state.

[0050] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0051] Figure 6 This is a three-dimensional structural diagram of the first limiting member in the first embodiment of this utility model.

[0052] Figure 7This is a three-dimensional structural diagram of the second limiting member in the first embodiment of this utility model.

[0053] Figure 8 This is a schematic diagram of the bottom three-dimensional structure of the ball core in the first embodiment of this utility model.

[0054] Figure 9 This is a three-dimensional structural diagram of the side of the core of the ball according to the first embodiment of the present invention.

[0055] Figure 10 This is a three-dimensional structural diagram of the other side of the ball core in the first embodiment of this utility model.

[0056] Figure 11 This is a three-dimensional structural diagram of the valve sleeve according to the first embodiment of this utility model.

[0057] Figure 12 This is a schematic diagram of the cross-sectional structure of the first gas passage that outputs gas independently in the first embodiment of this utility model.

[0058] Figure 13 This is a schematic diagram of the cross-sectional structure of the first gas passage and the second gas passage simultaneously outputting gas according to the first embodiment of this utility model.

[0059] Figure 14 This is a three-dimensional structural diagram of the first gas passage in the first embodiment of the present invention, which is in an inclined state.

[0060] Figure 15 This is a three-dimensional structural diagram of the first embodiment of the present invention, in which the first gas passage is inclined and the second gas passage is provided with a ventilation branch. Detailed Implementation

[0061] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0062] First embodiment:

[0063] See Figures 1-13 A gas valve with a three-channel structure includes:

[0064] Valve body 1, which is provided with an air intake channel 14, an air vent 19, a first gas passage 2, a second gas passage 3 and an ignition channel 4;

[0065] Ball valve core assembly 5, which is disposed in the ventilation chamber 19, is used to adjust the opening and closing of the air outlet end of the air intake channel 14 and to cooperate with the ventilation of the first gas passage 2, the second gas passage 3 and the ignition channel 4.

[0066] Main shaft 31 is connected to ball valve core assembly 5 and is used to drive ball valve core assembly 5 to rotate.

[0067] The first gas passage 2 is installed on the valve body 1 at an angle or vertically.

[0068] The valve body 1 is provided with a switch valve 16 for opening and closing the air intake end of the air intake channel 14;

[0069] The valve body 1 is provided with a trigger assembly 17 for cooperating with the spindle 31 to trigger the switching valve 16 to open the intake end of the intake channel 14.

[0070] The trigger assembly 17 includes a swing block 29 rotatably disposed within the valve body 1, a rod 30 axially movable within the valve body 1, and a connecting block 32 located at the lower part of the rod 30.

[0071] When the main shaft 31 moves axially toward the rod 30 inside the valve body 1, the connecting block 32 triggers the rod 30 to drive the swing block 29 to rotate and act on the switching valve 16, so that the switching valve 16 opens the air intake end of the air intake channel 14.

[0072] The switching valve 16 is a solenoid valve;

[0073] The rod 30 is inclinedly disposed inside the valve body 1;

[0074] The trigger assembly 17 is provided with a first spring 37 acting on the connecting block 32, and the main shaft 31 makes up-down elastic axial movement through the first spring 37.

[0075] The ball valve core assembly 5 is provided with an air inlet gap 42 and a movable rod assembly for opening and closing the air inlet of the air inlet gap 42. The movable rod assembly is arranged to move up and down within the air inlet gap 42.

[0076] The main shaft 31 moves axially within the valve body 1 towards the movable rod assembly to drive the movable rod assembly to move toward the air inlet of the air intake gap 42.

[0077] The movable rod assembly includes a movable rod 41 that moves up and down along the air intake gap 42, and a sealing ring 46 disposed below the head of the movable rod 41; when the movable rod assembly is in its initial position, the sealing ring 46 closes the air intake port of the air intake gap 42.

[0078] The ball valve core assembly 5 includes a valve sleeve 33, and the upper part of the valve sleeve 33 is provided with a first inner cavity for inserting the movable rod 41. The first inner cavity of the valve sleeve 33 and the outer side of the movable rod 41 form an air intake gap 42.

[0079] The lower part of the valve sleeve 33 is provided with a second inner cavity for inserting into the main shaft 31, and the lower outer side of the valve sleeve 33 is provided with a first spring 37;

[0080] The lower part of the movable rod 41 is provided with a sealing sleeve 47 for sealing the installation gap between the valve sleeve 33 and the movable rod 41;

[0081] The valve sleeve 33 is provided with an opening 43 for connecting the ignition channel 4; the opening 43 is located above the sealing sleeve 47;

[0082] When the air outlet of the air intake channel 14 and the air inlet of the air intake gap 42 are in the open state, the gas passes through the ball valve core assembly 5 along the air intake channel 14, enters the air intake gap 42, and is finally output to the ignition channel 4 through the opening 43.

[0083] The valve body 1 has an assembly cavity 39 that communicates with the venting chamber 19, and the valve sleeve 33 is installed in the assembly cavity 39.

[0084] The valve sleeve 33 is provided with a sealing element 44 on the outside for sealing the installation gap between the valve sleeve 33 and the assembly cavity 39. Two sealing elements 44 are provided on the outside of the valve sleeve 33 at an upper and lower interval, and the opening 43 is located between the two sealing elements 44.

[0085] The lower part of the movable rod 41 is also provided with a second spring 49 that allows the movable rod 41 to move up and down elastically. The movable rod 41 is elastically reset by the second spring 49 to close the air intake port of the air intake gap 42.

[0086] The ball valve core assembly 5 includes a ball core 10 connected to the valve sleeve 33. When the main shaft 31 rotates, it drives the valve sleeve 33 and the ball core 10 to rotate.

[0087] The spherical core 10 is provided with an air intake gradient channel 6, an internal channel 11, and a small flame gas outlet 10.1, a large flame gas outlet 10.2, and an ignition gas outlet 10.3 that connect the internal channel 11.

[0088] The spherical core 10 is provided with a sealing spherical surface 8 for sealing the air outlet end of the air inlet channel 14;

[0089] The internal channel 11 runs vertically through the interior of the sphere core 10. The first end of the internal channel 11 opens to form a small flame gas outlet 10.1, and the second end of the internal channel 11 opens to form an ignition gas outlet 10.3.

[0090] The intake gradient channel 6 includes a slot 9 and a vent 12 located at the end of the slot 9 to form the end output end of the intake gradient channel 6.

[0091] The width of the slot 9 gradually increases from the front to the end of the air intake gradient channel 6.

[0092] The ball core 10 is provided with a ventilation slot 7, and the ventilation hole 12 and the ventilation slot 7 are arranged opposite each other in a staggered manner. One end of the ventilation slot 7 is open to form an ignition gas outlet 10.3.

[0093] The ventilation cavity 19 is provided with a rotation limiting component 18 for limiting the ball core 10;

[0094] The rotation limiting assembly 18 includes a first limiting member 20 and a second limiting member 21 arranged at left and right intervals, and the ball core 10 is located between the first limiting member 20 and the second limiting member 21;

[0095] Both the first limiting member 20 and the second limiting member 21 are provided with an arc-shaped groove 22 that is adapted to the spherical surface of the ball core 10;

[0096] The ventilation slot 7 is a ventilation groove 13;

[0097] The first limiting member 20 is provided with a first through hole 23 coaxially connected to the air outlet end of the air intake channel 14; the sealing spherical surface 8 seals the first through hole 23, the first through hole 23 is used as the air outlet end of the air intake channel 14, and the first gas passage 2, the second gas passage 3 and the ignition passage 4 are in a closed state.

[0098] When the first perforation 23 corresponds to the front section of the slot 9, the first gas passage 2 is opened separately; when the first perforation 23 corresponds to the vent 12 at the end of the slot 9, the first gas passage 2 and the second gas passage 3 are opened simultaneously.

[0099] The second limiting member 21 is provided with a second through hole 24 for connecting the second gas passage 3. When the venting groove 13 is misaligned with the second through hole 24, the second gas passage 3 is in a closed state. When the venting groove 13 is connected with the second through hole 24, the second gas passage 3 is in an open state.

[0100] The outer diameter of the first perforation 23 is greater than the width of the slot 9;

[0101] The outer diameter of the second perforation 24 is larger than the width of the venting groove 13, and one end of the venting groove 13 extends upward toward the second perforation 24 and is disposed on the inner side of the ball core 10.

[0102] By setting up a first gas passage 2, a second gas passage 3, and an ignition passage 4, the versatility of the gas valve's flame control function is significantly enhanced. The first gas passage 2 serves as the low-flame passage for the gas stove, allowing users to consistently obtain a suitable low flame when cooking dishes requiring slow simmering or precise heat control, such as soups or fried eggs. The second gas passage 3, in conjunction with the first gas passage 2, forms the high-flame passage, providing strong heat for cooking scenarios requiring high heat, such as stir-frying, to quickly cook ingredients. The ignition passage 4 is used to introduce gas to the ignition needle assembly 15 during the gas valve ignition process.

[0103] The ignition needle assembly 15 is a prior art structure and will not be discussed in detail here.

[0104] The first gas passage 2 is vertically arranged on the valve body 1;

[0105] A ventilation branch 25 extends from one side of the second gas passage 3. A ventilation component 26 is provided at one end of the ventilation branch 25. The ventilation component 26 is connected at both ends to form a main ventilation structure 27. A side ventilation structure 28 is provided on the outside of the ventilation component 26, which connects to the inner cavity of the ventilation component 26 and the main ventilation structure 27. Several side ventilation structures 28 are provided, and the several side ventilation structures 28 are arranged in a circumferentially spaced array on the outer periphery of the ventilation component 26.

[0106] The valve body 1 is also provided with:

[0107] Ball valve core assembly 5, which is rotatably mounted on valve body 1 and used to switch the opening and closing of ignition channel 4, first gas passage 2 and second gas passage 3;

[0108] The ball valve core assembly 5 is provided with:

[0109] The slot 9 is used to connect the first gas passage 2 and to adjust the air intake of the first gas passage 2. The width of the slot 9 gradually increases along the ball valve core assembly 5 in the direction of opening the first gas passage 2.

[0110] The groove 9 is located on the ball valve core assembly 5 and is used to connect the first gas passage 2 and regulate the air intake of the first gas passage 2. The width of the groove 9 gradually increases along the ball valve core assembly 5 towards opening the first gas passage 2. This unique design allows users to achieve stepless adjustment when adjusting the low heat. The wider the groove 9, the greater the air intake. According to actual cooking needs, the air intake of the first gas passage 2 can be controlled to achieve low heat adjustment. Whether it is stewing with very low heat or simmering with slightly higher heat, the gas flow can be precisely controlled by rotating the ball valve core assembly 5 and utilizing the change of the groove 9 to achieve the ideal low heat state.

[0111] The ball valve core assembly 5 is provided with:

[0112] The intake transition channel 6 is used to connect the first gas passage 2, and the ball valve core assembly 5 switches the connection between the intake transition channel 6 and the first gas passage 2 by rotation.

[0113] Ventilation slot 7 is used to connect the intake gradual channel 6 and the second gas passage 3, and the ball valve core assembly 5 switches the connection and disconnection between the ventilation slot 7 and the second gas passage 3 by rotation.

[0114] The sealing spherical surface 8 is used to disconnect the connection between the first gas passage 2 and the intake transition channel 6, and to disconnect the connection between the second gas passage 3 and the ventilation slot 7.

[0115] The ball valve core assembly 5 can be rotated to open the first gas passage 2 alone or to open the first gas passage 2 and the second gas passage 3 simultaneously.

[0116] The ball valve core assembly 5 features an intake gradient channel 6, a vent slot 7, and a sealing spherical surface 8. These components work together to provide the gas valve with efficient and reliable channel on / off control. The intake gradient channel 6 connects to the first gas passage 2. Rotation of the ball valve core assembly 5 allows for easy switching between the intake gradient channel 6 and the first gas passage 2, enabling control over the opening and closing of the slack fire channel. The vent slot 7 connects to the second gas passage 3. Similarly, rotation of the ball valve core assembly 5 switches between the vent slot 7 and the second gas passage 3, allowing for flexible control of the high-heat channel. When high-heat stir-frying is needed, rotating the ball valve core assembly 5 connects the vent slot 7 to the second gas passage 3, quickly providing a powerful flame; when not needed, the flame can be cut off promptly, making operation convenient and efficient. The sealing spherical surface 8 is used to disconnect the connection between the first gas passage 2 and the intake gradient channel 6, as well as to disconnect the connection between the second gas passage 3 and the ventilation slot 7. Moreover, the ball valve core assembly 5 can open the first gas passage 2 alone or open the first gas passage 2 and the second gas passage 3 simultaneously by rotation, providing users with a variety of firepower options. Whether it is cooking with a single low flame or cooking with a combination of high and low flames, it can easily meet the needs, greatly enriching the cooking scenarios and improving the practicality and user experience of the gas valve.

[0117] The ball valve core assembly 5 includes a rotating ball core 10, the ball core 10 being provided with:

[0118] Internal channel 11, which runs vertically through the sphere core 10;

[0119] Vent 12, the vent 12 is disposed on the side of the ball core 10 and communicates with the internal channel 11;

[0120] Ventilation groove 13, the ventilation groove 13 and the ventilation hole 12 are arranged opposite to each other in the ball core 10, and the ventilation hole 12 and the ventilation groove 13 are arranged vertically at intervals;

[0121] The slot 9 is provided on the side of the ball core 10, and one end of the slot 9 extends to the vent 12.

[0122] The slot 9, the vent 12 and the internal channel 11 form an intake gradient channel 6 for connecting the first gas passage 2;

[0123] The vent 12, the internal channel 11, and the vent groove 13 form a vent slot 7 for connecting the second gas passage 3.

[0124] The spherical core 10 has an internal channel 11 that runs vertically through the core, providing a smooth flow of gas within it. A vent 12 is located on the side of the core 10 and connects to the internal channel 11. A vent groove 13, positioned opposite the vent 12 and spaced vertically, together forms the gas flow path within the core 10. A slot 9 is located on the side of the core 10, extending to the vent 12 at one end. The slot 9, along with the vent 12 and the internal channel 11, forms an intake gradient channel 6 connecting to the first gas passage 2, enabling gas flow in the small fire passage. Simultaneously, the vent 12, the internal channel 11, and the vent groove 13 form a venting slot 7 connecting to the second gas passage 3, ensuring gas transmission in the large fire passage. This unique structural design allows for orderly gas flow within the core 10, ensuring stable gas supply to the first gas passage 2 and the second gas passage 3 under different operating conditions. In practical use, when a low flame is needed, the gas enters the internal channel 11 through the slot 9 and vent 12, and then flows to the first gas passage 2 to achieve a low flame output. When a high flame is needed, the gas not only enters the first gas passage 2 through the intake gradient channel 6, but also enters the second gas passage 3 through the vent 12, internal channel 11, and vent groove 13 to form a high flame. This structural design of the spherical core 10 not only optimizes the gas flow path and improves gas transmission efficiency, but also ensures that the gas supply between different channels does not interfere with each other, providing users with stable, reliable, and diverse flame options, effectively improving the performance of the gas valve and the user's cooking experience.

[0125] The valve body 1 is provided with:

[0126] The air intake passage 14 is used to introduce gas when it is open, and to cut off the entry of gas when it is closed.

[0127] The outer side of the ball core 10 is provided with a sealing spherical surface 8. The sealing spherical surface 8 switches the connection and disconnection between the air intake gradual channel 6 and the first gas passage 2, and switches the connection and disconnection between the air passage slot 7 and the second gas passage 3 as the ball core 10 rotates.

[0128] The vent 12 passes through one side of the sealing spherical surface 8 and is connected to the internal channel 11, and the vent groove 13 opposite to the vent 12 passes through the other side of the sealing spherical surface 8 and is connected to the internal channel 11.

[0129] In the initial state, the sealing spherical surface 8 seals the air inlet channel 14 at the air outlet.

[0130] When the sealing spherical surface 8 is separated from the outlet end of the air intake channel 14 as the ball core 10 rotates, and the ball valve core assembly 5 rotates to the point where the air intake channel 14 corresponds to the front section of the slot 9, and the sealing spherical surface 8 is still in the state of disconnecting the vent slot 7 and the second gas passage 3, the first gas passage 2 is opened separately, and the gas enters the first gas passage 2 through the air intake channel 14, slot 9, vent hole 12 and internal channel 11;

[0131] When the ball valve core assembly 5 rotates to the point where the vent hole 12 at the end of the slot 9 corresponds to the air intake channel 14, the gas flows from the air intake transition channel 6 to the first gas passage 2, and the gas enters the second gas passage 3 from the vent hole 12, the internal channel 11 and the vent groove 13, so as to open the first gas passage 2 and the second gas passage 3 at the same time.

[0132] The air intake channel 14 on the valve body 1 cooperates with the sealing spherical surface 8 on the outer side of the ball core 10, providing a strong guarantee for the safety and precise control of the gas valve. The air intake channel 14 is used to introduce gas when open and to cut off gas intake when closed. The sealing spherical surface 8 on the outer side of the ball core 10 rotates with the ball core 10, enabling precise switching between the gradual air intake channel 6 and the first gas passage 2, as well as between the air passage 7 and the second gas passage 3.

[0133] In this technical solution, in the initial state, the sealing spherical surface 8 seals the outlet end of the air inlet channel 14, preventing gas from entering the gas valve and effectively preventing gas leakage, thus ensuring user safety. When the sealing spherical surface 8 rotates away from the outlet end of the air inlet channel 14 with the ball core 10, and the ball valve core assembly 5 rotates to correspond with the front section of the air inlet channel 14 and the slot 9, the first gas passage 2 is opened separately. Gas enters the first gas passage 2 through the air inlet channel 14, the slot 9, the vent hole 12, and the internal channel 11, achieving a small flame supply. As the ball valve core assembly 5 further rotates until the vent hole 12 at the end of the slot 9 corresponds with the air inlet channel 14, gas not only flows from the air inlet transition channel 6 to the first gas passage 2, but also enters the second gas passage 3 through the vent hole 12, the internal channel 11, and the vent groove 13, simultaneously opening the first gas passage 2 and the second gas passage 3, achieving a large flame supply. This control method allows users to control the on / off and flow of gas according to their cooking needs, enabling them to switch between different heat levels. This not only improves the convenience and precision of cooking but also ensures the safety of gas usage, providing users with a safe and efficient user experience.

[0134] The rotation limiting component 18 and the venting chamber 19 provided on the valve body 1 precisely limit and stably support the rotation of the ball core 10, improving the reliability and stability of the gas valve. The rotation limiting component 18 is used to limit the rotation of the ball core 10, ensuring that the ball core 10 can accurately stop at the corresponding angle position during rotation, realizing the opening and closing of different gas passages and the firepower adjustment of the first gas passage 2. The venting chamber 19 is used to install the rotation limiting component 18 and the limiting ball core 10, and the upper and lower ends of the venting chamber 19 are connected, with the upper end connected to the first gas passage 2 (it can be understood that the upper end of the venting chamber 19 is used to install gas valve accessories with the first gas passage 2). The rotation limiting component 18 includes a first limiting member 20 and a second limiting member 21, with the ball core 10 located between the two, respectively arranged at left and right intervals in the venting chamber 19, and both limiting members are provided with arc-shaped grooves 22 that are adapted to the spherical surface of the ball core 10. This design allows the ball core 10 to be stably constrained by the arc-shaped groove 22 during rotation, preventing wobbling or displacement.

[0135] The structural design of the first limiting member 20 and the second limiting member 21, and their cooperation with the ball core 10 and the gas passage, further optimize the control accuracy and stability of the gas valve. The first limiting member 20 is correspondingly set with the air intake passage 14, and has a first through hole 23 coaxially connected to the outlet end of the air intake passage 14. The sealing ball surface 8 seals the first through hole 23 and seals the outlet end of the air intake passage 14. At this time, the first gas passage 2, the second gas passage 3 and the ignition passage 4 are in a closed state, effectively preventing gas leakage and ensuring safe use. When the first through hole 23 corresponds to the front section of the slot 9, the first gas passage 2 is opened separately to achieve small flame supply. Since the outer diameter of the first through hole 23 is larger than the width of the slot 9, during the correspondence between the two, it can ensure that the gas flows accurately into the slot 9. When the ball core 10 rotates, the width of the slot 9 gradually changes, so the gas flow rate of the small flame passage can be controlled. When the first perforation 23 aligns with the vent 12 at the end of the groove 9, the first gas passage 2 and the second gas passage 3 are simultaneously opened, providing high-heat supply and precisely meeting the user's heat requirements at different cooking stages. The second limiting member 21 is provided with a second perforation 24 for connecting the second gas passage 3. When the vent groove 13 and the second perforation 24 are misaligned, the second gas passage 3 is in a closed state; when connected, the second gas passage 3 is in an open state. The outer diameter of the second perforation 24 is larger than the groove width of the vent groove 13, and one end of the vent groove 13 extends upward toward the second perforation 24 and is located on the inner side of the ball core 10. This design allows for precise control of the connection and disconnection between the vent groove 13 and the second perforation 24 during the rotation of the ball core 10, avoiding gas leakage or accidental opening of passages due to unreasonable structural design. The first perforation 23 and the second perforation 24 are coaxially arranged, further ensuring precise and orderly switching between the gas passages during the rotation of the ball core 10, effectively improving the control accuracy and stability of the gas valve, and providing users with a reliable cooking heat adjustment experience.

[0136] The valve body 1 is provided with:

[0137] A switching valve 16 is used to open and close the input end of the air intake channel 14. A trigger assembly 17 is provided between the switching valve 16 and the ball valve core assembly 5. The ball valve core assembly 5 drives the switching valve 16 to open the air intake channel 14 through the trigger assembly 17.

[0138] The ball valve core assembly 5 includes a main shaft 31 movably mounted on the valve body 1. The main shaft 31 has elastic axial movement and circumferential rotation.

[0139] The trigger assembly 17 includes a swing block 29 rotatably disposed in the valve body 1, a rod 30 axially movable in the valve body 1, and a connecting block 32 mounted on the main shaft 31;

[0140] When the main shaft 31 makes an elastic axial movement, the connecting block 32 acts on the rod 30 to drive the rod 30 to trigger the rotation of the swing block 29. The rotation of the swing block 29 acts on the switching valve 16, thereby opening the input end of the air intake channel 14.

[0141] The ball valve core assembly 5 also includes a valve sleeve 33, the lower part of which is connected to the main shaft 31, and the upper part of which is connected to the ball core 10.

[0142] The valve sleeve 33 is provided with a plug end 34, and the ball core 10 is provided with a retaining groove 35 for limiting insertion into the plug end 34;

[0143] The lower part of the valve sleeve 33 is provided with an inner cavity 36 for inserting the main shaft 31. The lower outer side of the valve sleeve 33 is provided with a first spring 37. The first end of the first spring 37 abuts against the outer side of the valve sleeve 33, and the second end of the first spring 37 abuts against the connecting block 32, so that the main shaft 31 can move elastically axially.

[0144] The valve sleeve 33 is provided with a positioning block 38 acting on the first spring 37 on its outer side;

[0145] A non-rotational structure is provided between the main shaft 31 and the lower inner cavity 36 of the valve sleeve 33 to prevent them from rotating relative to each other, so that the valve sleeve 33 and the ball core 10 rotate synchronously with the main shaft 31.

[0146] The coordinated operation of the switching valve 16, trigger assembly 17, and ball valve core assembly 5 mounted on the valve body 1 provides strong support for the ease of operation and safety of the gas valve. The switching valve 16 is a solenoid valve used to open and close the input end of the air intake channel 14. The trigger assembly 17 is located between the switching valve 16 and the ball valve core assembly 5. The ball valve core assembly 5 drives the switching valve 16 to open the air intake channel 14 via the trigger assembly 17. This design allows the user to control the opening of the switching valve 16 by simply pressing the ball valve core assembly 5 when operating the gas valve, via the trigger assembly 17. The ball valve core assembly 5 includes a main shaft 31 movably mounted on the valve body 1, which has elastic axial movement and circumferential rotation. The trigger assembly 17 includes a swing block 29 rotatably mounted within the valve body 1, a rod 30 axially movable within the valve body 1, and a connecting block 32 mounted on the main shaft 31. When the main shaft 31 moves elastically in the axial direction, the connecting block 32 acts on the rod 30, driving the rod 30 to trigger the swing block 29 to rotate. The rotation of the swing block 29 acts on the switching valve 16, thereby opening the input end of the air intake channel 14. The entire triggering process is rapid and reliable. The ball valve core assembly 5 also includes a valve sleeve 33. The lower part of the valve sleeve 33 is connected to the main shaft 31, and the upper part of the valve sleeve 33 is connected to the ball core 10. The valve sleeve 33 is provided with a plug-in end 34, and the ball core 10 is provided with a retaining groove 35 for limiting the insertion of the plug-in end 34. This connection method ensures stable transmission between the ball core 10 and the main shaft 31, enabling the ball core 10 to accurately respond to the rotation of the main shaft 31. The lower part of the valve sleeve 33 is inserted into the inner cavity 36 of the main shaft 31, and a first spring 37 is provided on the outer side. The first end of the first spring 37 abuts against the outer side of the valve sleeve 33, and the second end of the first spring 37 abuts against the connecting block 32, causing the main shaft 31 to move elastically in the axial direction. The first spring 37 can be used to reset the main shaft 31, causing the trigger assembly 17 to reset after ignition and re-close the ignition channel 4. The solenoid valve is electrically connected to the thermocouple. When the gas stove is in flame combustion mode, the solenoid valve remains energized, so the ignition channel 4 is closed after the gas valve is opened. A positioning block 38 is provided on the outside of the valve sleeve 33, which acts on the first spring 37 to limit the position of the first spring 37 and ensure the stability of the spring's operation. An anti-rotation structure is provided between the main shaft 31 and the lower inner cavity 36 of the valve sleeve 33 to prevent relative rotation between the two, so that the valve sleeve 33 and the ball core 10 rotate synchronously with the main shaft 31, ensuring the coordination and accuracy of the actions of the various components of the gas valve.

[0147] The valve body 1 is also provided with:

[0148] Assembly cavity 39, which is used to install valve sleeve 33, the lower end of vent cavity 19 is connected to assembly cavity 39, and the side of assembly cavity 39 is connected to vent hole 40 of ignition channel 4.

[0149] The valve sleeve 33 is provided with a movable rod 41 that can move axially with elasticity, and an air intake gap 42 is provided between the valve sleeve 33 and the movable rod 41 for connecting the internal channel 11 of the ball core 10.

[0150] In the initial state, the movable rod 41 closes the input end of the air intake gap 42. During the elastic axial movement of the main shaft 31 toward the movable rod 41, the movable rod 41 is triggered to move axially and open the input end of the air intake gap 42. When the ball core 10 rotates to correspond to the front section of the slot 9, the gas flows through the gas slot 9 of the ball core 10, the internal channel 11 and the air intake gap 42 of the valve sleeve 33 to the vent hole 40 and the ignition channel 4.

[0151] The valve sleeve 33 is provided with an opening 43 for connecting the air inlet gap 42 and the vent hole 40, and the outer side of the valve sleeve 33 is provided with a sealing element 44 for abutting against the inner wall of the assembly cavity 39.

[0152] The valve sleeve 33 is provided with a positioning step 45 corresponding to the input end of the air intake gap 42. The upper end of the movable rod 41 is provided with a sealing ring 46 that is positioned on the positioning step 45 in the initial state to seal the input end of the air intake gap 42.

[0153] The movable rod 41 is provided with a sealing sleeve 47 for sealing the mating gap between the valve sleeve 33 and the movable rod 41. The sealing sleeve 47 is located below the opening 43. The movable rod 41 is provided with a first positioning pad 48 located below the sealing sleeve 47, a second spring 49 located below the first positioning pad 48, and a second positioning pad 50 located below the second spring 49. The second spring 49 is located between the first positioning pad 48 and the second positioning pad 50. When the movable rod 41 is triggered to move axially by the main shaft 31, the second spring 49 is in a compressed state to open the ignition channel 4. After the second spring 49 is reset, the sealing ring 46 re-seals the input end of the air intake gap 42, and the ignition channel 4 is closed.

[0154] The assembly cavity 39 on the valve body 1, along with the structural design of the valve sleeve 33 and the movable rod 41, provides significant advantages for precise control of the ignition channel 4 and overall performance improvement of the gas valve. The assembly cavity 39 is used to install the valve sleeve 33. The lower end of the vent cavity 19 connects to the assembly cavity 39, facilitating the assembly of the ball core and the valve sleeve. The side of the assembly cavity 39 connects to the vent hole 40 of the ignition channel 4. The valve sleeve 33 contains a movable rod 41 with elastic axial movement. An air inlet gap 42 is provided between the valve sleeve 33 and the movable rod 41 to connect to the internal channel 11 of the ball core 10. In the initial state, the movable rod 41 closes the input end of the air inlet gap 42, at which point the ignition channel 4 is closed, effectively preventing gas leakage. When the main shaft 31 moves elastically towards the movable rod 41, it triggers the movable rod 41 to move axially and open the input end of the air intake gap 42. When the ball core 10 rotates to correspond to the front section of the slot 9, the gas flows through the slot 9 of the ball core 10, the internal channel 11, and the air intake gap 42 of the valve sleeve 33 to the vent hole 40 and the ignition channel 4, thus opening the ignition channel 4 and ensuring the stability and reliability of the gas supply during ignition. The valve sleeve 33 is provided with an opening 43 for connecting the air intake gap 42 and the vent hole 40. The outer side of the valve sleeve 33 is provided with a sealing element 44 for abutting against the inner wall of the assembly cavity 39, ensuring the sealing of the gas during the flow of gas in the valve sleeve 33 and preventing gas leakage. The valve sleeve 33 is provided with a positioning step 45 corresponding to the input end of the air intake gap 42. The upper end of the movable rod 41 is provided with a sealing ring 46 that is positioned on the positioning step 45 in the initial state to seal the input end of the air intake gap 42, further improving the sealing performance when the ignition channel 4 is closed. The movable rod 41 is equipped with a sealing sleeve 47, located below the opening 43, to seal the gap between the valve sleeve 33 and the movable rod 41, preventing gas leakage at the end of the movable rod 41 and the valve sleeve 33. The movable rod 41 also has a first positioning washer 48, a second spring 49, and a second positioning washer 50, with the second spring 49 located between the first positioning washer 48 and the second positioning washer 50. When the movable rod 41 is triggered to move axially by the main shaft 31, the second spring 49 is compressed, opening the ignition channel 4; after the second spring 49 returns to its original position, the sealing ring 46 re-seals the input end of the air intake gap 42, closing the ignition channel 4. This design allows for precise control of the opening and closing of the ignition channel 4, ensuring smooth ignition and improving the safety of the gas valve in non-ignition states, effectively enhancing the overall performance of the gas valve and the user experience.

[0155] The valve sleeve 33 has a limiting step corresponding to the sealing sleeve 47. The sealing sleeve 47 is axially limited between the limiting step and the first positioning washer 48. The second positioning washer 50 can be fixedly welded to the movable rod 41, or the movable rod 41 is provided with a retaining ring to prevent the second positioning washer 50 from axially disengaging from the movable rod 41. The movable rod 41 is provided with a groove for installing the retaining ring.

[0156] A positioning piece is provided on the outer side of the valve sleeve 33 to abut against the first spring 37.

[0157] The valve body 1 is provided with a small opening for connecting the air intake passage 14, corresponding to the switch valve 16.

[0158] Second embodiment:

[0159] See Figures 14-15 The first gas passage is inclined on the valve body 1, and may or may not have a gas passage 25.

[0160] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A gas valve with a three-channel structure, characterized in that, include: The valve body (1) is provided with an air intake channel (14), a ventilation chamber (19), a first gas passage (2), a second gas passage (3) and an ignition channel (4). Ball valve core assembly (5), the ball valve core assembly (5) is disposed in the ventilation chamber (19), the ball valve core assembly (5) is used to adjust the opening and closing of the air outlet end of the air intake channel (14) and to cooperate with the ventilation of the first gas passage (2), the second gas passage (3) and the ignition channel (4); The main shaft (31) is connected to the ball valve core assembly (5) and is used to drive the ball valve core assembly (5) to rotate.

2. The gas valve with a three-channel structure according to claim 1, characterized in that: The first gas passage (2) is installed on the valve body (1) at an angle or vertically.

3. The gas valve with a three-channel structure according to claim 1, characterized in that: The valve body (1) is provided with a switch valve (16) for opening and closing the air intake end of the air intake channel (14). The valve body (1) is provided with a trigger assembly (17) for cooperating with the spindle (31) to trigger the switching valve (16) to open the intake end of the intake passage (14).

4. The gas valve with a three-channel structure according to claim 3, characterized in that: The trigger assembly (17) includes a swing block (29) rotatably disposed in the valve body (1), a rod (30) axially movable in the valve body (1), and a connecting block (32) located at the lower part of the rod (30). When the main shaft (31) moves axially toward the rod (30) in the valve body (1), the rod (30) is triggered by the connecting block (32) to drive the swing block (29) to rotate and act on the switch valve (16), so that the switch valve (16) opens the air intake end of the air intake channel (14); The switching valve (16) is a solenoid valve; The rod (30) is inclinedly disposed inside the valve body (1); The trigger assembly (17) is provided with a first spring (37) acting on the connecting block (32), and the main shaft (31) moves up and down elastically through the first spring (37).

5. The gas valve with a three-channel structure according to claim 1, characterized in that: The ball valve core assembly (5) is provided with an air inlet gap (42) and a movable rod assembly for opening and closing the air inlet of the air inlet gap (42). The movable rod assembly is arranged to move up and down within the air inlet gap (42). The main shaft (31) moves axially within the valve body (1) towards the movable rod assembly to drive the movable rod assembly to move toward the air inlet of the opening air gap (42).

6. The gas valve with a three-channel structure according to claim 5, characterized in that: The movable rod assembly includes a movable rod (41) that moves up and down along the air intake gap (42) and a sealing ring (46) disposed below the head of the movable rod (41); the sealing ring (46) closes the air intake of the air intake gap (42) when the movable rod assembly is in its initial position.

7. The gas valve with a three-channel structure according to claim 6, characterized in that: The ball valve core assembly (5) includes a valve sleeve (33), the upper part of which is provided with a first inner cavity for inserting a movable rod (41), and the first inner cavity of the valve sleeve (33) and the outer side of the movable rod (41) form an air intake gap (42). The lower part of the valve sleeve (33) is provided with a second inner cavity for inserting the main shaft (31), and the lower outer part of the valve sleeve (33) is provided with a first spring (37). The lower part of the movable rod (41) is provided with a sealing sleeve (47) for sealing the installation gap between the valve sleeve (33) and the movable rod (41). The valve sleeve (33) is provided with an opening (43) for connecting the ignition channel (4); the opening (43) is located above the sealing sleeve (47); When the outlet of the intake channel (14) and the intake port of the intake gap (42) are in the open state, the gas passes through the ball valve core assembly (5) along the intake channel (14) and enters the intake gap (42) and is finally output to the ignition channel (4) through the opening (43). The valve body (1) has an assembly cavity (39) that communicates with the venting chamber (19), and the valve sleeve (33) is installed in the assembly cavity (39). The valve sleeve (33) is provided with a sealing element (44) on the outside for sealing the installation gap between the valve sleeve (33) and the assembly cavity (39). The valve sleeve (33) is provided with two sealing elements (44) spaced apart vertically on the outside. The opening (43) is located between the two sealing elements (44). The lower part of the movable rod (41) is also provided with a second spring (49) that makes the movable rod (41) move up and down elastically. The movable rod (41) is elastically reset by the second spring (49) to close the air inlet of the air inlet gap (42).

8. The gas valve with a three-channel structure according to claim 7, characterized in that: The ball valve core assembly (5) includes a ball core (10) connected to the valve sleeve (33). When the main shaft (31) rotates, it drives the valve sleeve (33) and the ball core (10) to rotate. The ball core (10) is provided with an air intake gradient channel (6), an internal channel (11), and a small flame gas outlet (10.1), a large flame gas outlet (10.2), and an ignition gas outlet (10.3) that connect the internal channel (11). The ball core (10) is provided with a sealing spherical surface (8) for sealing the air outlet end of the air inlet channel (14). The internal channel (11) runs through the inside of the ball core (10) from top to bottom. The first end of the internal channel (11) opens to form a small flame gas outlet (10.1), and the second end of the internal channel (11) opens to form an ignition gas outlet (10.3).

9. The gas valve with a three-channel structure according to claim 8, characterized in that: The intake gradient channel (6) includes a slot (9) and a vent (12) provided at the end of the slot (9) to form the end output end of the intake gradient channel (6). The width of the slot (9) gradually increases from the front to the end of the intake gradient channel (6); The ball core (10) is provided with a ventilation slot (7), and the ventilation hole (12) and the ventilation slot (7) are arranged opposite each other in an up-down staggered manner. One end of the ventilation slot (7) is open to form an ignition gas outlet (10.3).

10. The gas valve with a three-channel structure according to claim 9, characterized in that: The ventilation cavity (19) is provided with a rotation limiting component (18) for limiting the ball core (10). The rotation limiting assembly (18) includes a first limiting member (20) and a second limiting member (21) spaced apart on the left and right, with the ball core (10) located between the first limiting member (20) and the second limiting member (21); Both the first limiting member (20) and the second limiting member (21) are provided with an arc-shaped groove (22) that is adapted to the spherical surface of the ball core (10). The ventilation slot (7) is a ventilation groove (13); The first limiting member (20) is provided with a first through hole (23) at the outlet end of the coaxially connected air intake channel (14); the sealing spherical surface (8) seals the first through hole (23), the first through hole (23) is used as the outlet end of the air intake channel (14), and the first gas passage (2), the second gas passage (3) and the ignition passage (4) are in a closed state; When the first perforation (23) corresponds to the front section of the slot (9), the first gas passage (2) is opened separately; when the first perforation (23) corresponds to the vent (12) at the end of the slot (9), the first gas passage (2) and the second gas passage (3) are opened simultaneously. The second limiting member (21) is provided with a second through hole (24) for connecting the second gas passage (3). When the ventilation groove (13) is misaligned with the second through hole (24), the second gas passage (3) is in a closed state. When the ventilation groove (13) is connected with the second through hole (24), the second gas passage (3) is in an open state. The outer diameter of the first perforation (23) is greater than the width of the slot (9); The outer diameter of the second perforation (24) is greater than the width of the ventilation groove (13), and one end of the ventilation groove (13) extends upward toward the second perforation (24) and is disposed on the inner side of the ball core (10).

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