Burners and gas cookers

Abstract

The invention discloses a burner and a gas cooker, the gas cooker comprises a burner, the burner comprises a main body seat, a first valve body, a fire cover assembly connected to the main body seat, and an adjusting pipe, the main body seat is provided with a central gas channel, an inner ring gas channel, an outer ring gas channel, a first air inlet channel, a second air inlet channel, and a third air inlet channel, the central gas channel is connected to the first air inlet channel, the inner ring gas channel is connected to the second air inlet channel, the outer ring gas channel is connected to the third air inlet channel, the central gas channel, the inner ring gas channel, and the outer ring gas channel can all output gas through the fire cover assembly, the adjusting pipe can connect the central gas channel and the outer ring gas channel, the first valve body is connected to the adjusting pipe and can control the opening and closing of the channel in the adjusting pipe. The invention can achieve a larger combustion firepower and combustion area, and can achieve a better combustion heating effect.

Description

Technical Field

[0001] The invention relates to the field of gas equipment, in particular to a burner and a gas cooker. Background Art

[0002] The existing stove burner generally adopts a combustion structure in which a central fire cover and an outer ring fire cover are matched. In order to increase the firepower and combustion area of ​​the burner, some burners will adopt a combustion structure with a multi-ring fire cover, that is, the burner is provided with a plurality of annular gas channels which are arranged layer by layer, and each annular gas channel is covered with a fire cover. Such a burner has a large combustion area, but because there are multiple annular gas channels which are arranged layer by layer, the difference in gas delivery distance between the innermost and outermost gas channels is large. The gas delivery distance of the outermost annular gas channel is longer, and the gas pressure decreases more when the gas is delivered in the outermost annular gas channel. The gas distribution is prone to unevenness, causing the outermost combustion flame to be larger near its air inlet and smaller away from its air inlet; secondly, the gas delivery distance of the central gas channel is shorter, and when the burner is in the high-fire gear, the gas output pressure is larger, and the gas output combustion of the central gas channel is prone to the phenomenon of fire separation. Therefore, the combustion and heating effect of the existing multi-ring burner is poor and inconvenient to use. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a burner, which can achieve a larger combustion power and combustion area by adopting a multi-ring fire combustion structure, and can better balance the gas pressure at the outer ring and the center of the burner by arranging a regulating pipe to connect the central gas channel and the outer ring gas channel, thereby achieving a better combustion heating effect.

[0004] The invention also provides a gas cooker with the burner.

[0005] According to the burner described in the embodiment of the first aspect of the present invention, it includes a main body seat, a fire cover assembly, an adjusting tube and a first valve body, and the main body seat is provided with a central gas channel, an inner ring gas channel, an outer ring gas channel, a first air intake channel, a second air intake channel and a third air intake channel, the central gas channel is located on the inner side of the ring surrounded by the inner ring gas channel, the inner ring gas channel is located on the inner side of the ring surrounded by the outer ring gas channel, the central gas channel is connected to the first air intake channel, the inner ring gas channel is connected to the second air intake channel, and the outer ring gas channel is connected to the third air intake channel; the fire cover assembly is connected to the main body seat, and the central gas channel, the inner ring gas channel and the outer ring gas channel can all output gas through the fire cover assembly; the adjusting tube is connected to the main body seat and can connect the central gas channel and the outer ring gas channel; the first valve body is connected to the adjusting tube and can control the opening and closing of the channel in the adjusting tube.

[0006] The burner according to the embodiment of the present invention has at least the following beneficial effects: when in use, the gas is taken in from the first air inlet channel, the second air inlet channel and the third air inlet channel respectively, and is respectively delivered to the central gas channel, the inner ring gas channel and the outer ring gas channel, and the gas is output from the corresponding gas channels through the fire cover assembly for combustion. When controlling and adjusting the combustion power and combustion area of ​​the burner, the air intake conditions of each air intake channel can be controlled so that the central gas channel outputs gas, or the central gas channel and the inner ring gas channel both output gas, or the central gas channel, the inner ring gas channel and the outer ring gas channel all output gas, thereby correspondingly realizing the adjustment of the burner to a low fire, a medium fire or a high fire gear; when it is necessary to adjust to a low fire or a medium fire gear, the channel connection in the regulating tube can be closed by the first valve body, so that the central gas channel and the outer ring gas channel are disconnected, so that the central gas channel outputs gas or the central gas channel and the inner ring gas channel both output gas; when it is necessary to adjust to a high fire gear, the channel connection in the regulating tube can be opened by the first valve body, so that the central gas channel and the outer ring gas channel are connected, and the higher pressure gas in the central gas channel is partially supplemented to the lower pressure in the outer ring gas channel, so that the gas in the outer ring gas channel can be more evenly distributed, while reducing the gas output pressure of the central gas channel, thereby reducing the possibility of fire separation during combustion. The present invention can achieve a larger combustion power and combustion area by adopting a multi-ring fire combustion structure, and can better balance the gas pressure at the outer ring and the center of the burner by setting an adjusting pipe to connect the central gas channel and the outer ring gas channel, thereby achieving a better combustion heating effect.

[0007] According to some embodiments of the present invention, a second valve body is connected to the regulating tube, and the second valve body can be opened and closed according to the gas pressure of the central gas channel.

[0008] According to some embodiments of the present invention, the second valve body includes a valve body, an elastic member and a blocking member, and the valve body is provided with a fourth air inlet channel, an air vent and an air outlet channel, the fourth air inlet channel is connected to the central gas channel, the air outlet channel is connected to the outer ring gas channel, the fourth air inlet channel is connected to the air outlet channel through the air vent, the blocking member is movably connected to the valve body and connected to the elastic member, the blocking member can block the air vent under the action of the elastic member, and the blocking member can release the blockage of the air vent under the action of the gas pressure of the fourth air inlet channel.

[0009] According to some embodiments of the present invention, the second valve body also includes an adjusting member, and both ends of the elastic member act on the adjusting member and the sealing member respectively. The adjusting member is screwed together with the valve body through a threaded structure and can move relative to the valve body so as to adjust the elastic force of the elastic member acting on the sealing member.

[0010] According to some embodiments of the present invention, an outer ring air inlet and an outer ring regulating port are provided on the outer ring gas channel, the outer ring gas channel is connected with the third air inlet channel through the outer ring air inlet, the outer ring gas channel is connected with the channel in the regulating pipe through the outer ring regulating port, and the outer ring regulating port is located on a side of the outer ring gas channel away from the outer ring air inlet.

[0011] According to some embodiments of the present invention, a buffer channel is provided on the main body seat, and the central gas channel and the first air inlet channel are connected through the buffer channel.

[0012] According to some embodiments of the present invention, an outer ring air inlet is provided on the outer ring gas channel, the outer ring gas channel is connected with the third air inlet channel through the outer ring air inlet, and an outer ring diverter is provided above the outer ring air inlet; an inner ring air inlet is provided on the inner ring gas channel, the inner ring gas channel is connected with the second air inlet channel through the inner ring air inlet, and an inner ring diverter is provided above the inner ring air inlet.

[0013] According to some embodiments of the present invention, a first air channel for air to enter is provided between the central gas channel and the inner ring gas channel, and a second air channel for air to enter is provided between the inner ring gas channel and the outer ring gas channel.

[0014] According to some embodiments of the present invention, the fire cover assembly includes a central fire cover, an inner ring fire cover and an outer ring fire cover, the central fire cover is arranged on the central gas channel and is provided with a central air outlet connected to the central gas channel, the inner ring fire cover is arranged on the inner ring gas channel and is provided with an inner ring air outlet connected to the inner ring gas channel, and the outer ring fire cover is arranged on the outer ring gas channel and is provided with an outer ring air outlet connected to the outer ring gas channel; the inner ring fire cover is in a circular ring shape, the inner side surface of the inner ring fire cover is inclined to be in an inverted frustum shape, the inner ring air outlet is in a long strip shape and is arranged on the inner ring The inner side surface of the fire cover has a plurality of inner ring air outlet holes, which are evenly spaced and spirally arranged along the circumference of the inner ring fire cover, so that the gas outputted by the plurality of inner ring air outlet holes can form a vortex airflow; the outer ring fire cover is in a circular ring shape, and the inner side surface of the outer ring fire cover is inclined to form an inverted frustum, and the outer ring air outlet holes are in a long strip shape and are arranged on the inner side surface of the outer ring fire cover, and the outer ring air outlet holes are provided with a plurality of outer ring air outlet holes, which are evenly spaced and spirally arranged along the circumference of the outer ring fire cover, so that the gas outputted by the plurality of outer ring air outlet holes can form a vortex airflow.

[0015] The gas cooker according to the second embodiment of the present invention comprises the burner according to the first embodiment of the present invention.

[0016] The gas cooker according to the embodiment of the present invention has at least the following beneficial effects: by adopting the above-mentioned burner, it can achieve a larger combustion firepower and combustion area, and by providing an adjusting pipe to connect the central gas channel and the outer ring gas channel, it can better balance the gas pressure at the outer ring and the center of the burner, achieve a better combustion and heating effect, and facilitate cooking.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the structure of a burner according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic structural diagram of the burner from another perspective;

[0021] Figure 3 for Figure 1 One of the cross-sectional structural diagrams of the burner;

[0022] Figure 4 for Figure 1 The second schematic diagram of the cross-sectional structure of the middle burner;

[0023] Figure 5 for Figure 1 A schematic diagram of the structure of the burner from above;

[0024] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of the second valve body.

[0025] Reference numerals:

[0026] Main body 100, central gas channel 110, inner ring gas channel 120, inner ring air inlet 121, inner ring flow divider 122, outer ring gas channel 130, outer ring air inlet 131, outer ring regulating port 132, outer ring flow divider 133, first air inlet channel 140, second air inlet channel 150, third air inlet channel 160, buffer channel 170, first air channel 180, second air channel 190;

[0027] Fire cover assembly 200, central fire cover 210, central air outlet 211, inner ring fire cover 220, inner ring air outlet 221, outer ring fire cover 230, outer ring air outlet 231;

[0028] Regulating tube 300;

[0029] A first valve body 400;

[0030] The second valve body 500 , the valve main body 510 , the fourth air inlet passage 511 , the air vent 512 , the air outlet passage 513 , the elastic member 520 , the blocking member 530 , and the adjusting member 540 . DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it is necessary to understand that if it involves orientation description, the orientation or position relationship indicated, such as up, down, etc., is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present invention, if the words such as several, greater than, less than, exceed, above, below, within, etc. appear, among which, several means one or more, more means more than two, greater than, less than, exceed, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself.

[0034] If the first and second are described, they are only used to distinguish the technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Reference Figure 1 , Figure 2 and Figure 5 A burner includes a main body 100, a fire cover assembly 200, a regulating pipe 300 and a first valve body 400. The main body 100 is provided with a central gas channel 110, an inner ring gas channel 120, an outer ring gas channel 130, a first air inlet channel 140, a second air inlet channel 150 and a third air inlet channel 160. The central gas channel 110 is located inside the ring formed by the inner ring gas channel 120, the inner ring gas channel 120 is located inside the ring formed by the outer ring gas channel 130, and the central gas channel 110 is connected to the first air inlet channel 140. The inner ring gas channel 120 is connected to the second air inlet channel 150, and the outer ring gas channel 130 is connected to the third air inlet channel 160; the fire cover assembly 200 is connected to the main body seat 100, and the central gas channel 110, the inner ring gas channel 120 and the outer ring gas channel 130 can output gas through the fire cover assembly 200; the regulating pipe 300 is connected to the main body seat 100 and can connect the central gas channel 110 and the outer ring gas channel 130; the first valve body 400 is connected to the regulating pipe 300 and can control the opening and closing of the channel in the regulating pipe 300.

[0037] It is understandable that if Figure 1 , Figure 2 and Figure 5As shown, the main body 100 is provided with a central gas channel 110, an inner ring gas channel 120 and an outer ring gas channel 130 from the inside to the outside, and the lower side of the main body 100 is provided with a first gas inlet channel 140, a second gas inlet channel 150 and a third gas inlet channel 160 corresponding to the three gas inlet channels. The main body 100 is respectively connected with ejector pipes (not shown in the figure) corresponding to the three gas inlet channels, and the gas input of the ejector pipes is respectively controlled by a valve control system (not shown in the figure) to control the gas inlet conditions of each gas inlet channel; the main body 100 is connected with an ignition needle (not shown in the figure) to correspond to ignite the gas output by the fire cover assembly 200. When in use, the gas is respectively inlet from the first gas inlet channel 140, the second gas inlet channel 150 and the third gas inlet channel 160, and is respectively transported to the central gas channel 110, the inner ring gas channel 120 and the outer ring gas channel 130, and the gas is output from the corresponding gas channel through the fire cover assembly 200 for combustion.

[0038] When controlling and adjusting the combustion power and combustion area of ​​the burner, the air intake conditions of each air intake channel can be controlled so that the central gas channel 110 outputs gas, or the central gas channel 110 and the inner ring gas channel 120 all output gas, or the central gas channel 110, the inner ring gas channel 120 and the outer ring gas channel 130 all output gas, thereby correspondingly achieving the adjustment of the low fire, medium fire or high fire gear of the burner; when it is necessary to adjust to the low fire or medium fire gear for use, the channel connection in the adjustment tube 300 can be closed through the first valve body 400, so that the central gas channel 110 and the outer ring gas channel 130 are disconnected , to achieve the central gas channel 110 outputting gas or the central gas channel 110 and the inner ring gas channel 120 both outputting gas; when it is necessary to adjust to a high fire gear, the channel in the regulating pipe 300 can be opened through the first valve body 400 to communicate with each other, so that the central gas channel 110 and the outer ring gas channel 130 are connected, and the higher pressure gas in the central gas channel 110 is partially supplemented to the lower pressure in the outer ring gas channel 130, so that the gas in the outer ring gas channel 130 can be distributed more evenly, and at the same time, the gas output pressure of the central gas channel 110 is reduced, thereby reducing the possibility of fire separation during combustion.

[0039] The present invention can achieve a larger combustion power and combustion area by adopting a multi-ring fire combustion structure, and by providing an adjusting pipe 300 to connect the central gas channel 110 and the outer ring gas channel 130, it can better balance the gas pressure at the outer ring and the center of the burner, thereby achieving a better combustion heating effect.

[0040] In actual application, the first valve body 400 can be a switch valve, such as a plug valve, a ball valve, etc., which can be controlled by manual operation to open and close the channel in the regulating tube 300, or by providing a linkage structure on the first valve body 400, which is linked with the valve control system in the cooker. When switching the fire power gear, the first valve body 400 is controlled to open and close through the linkage part, or by providing a driver to drive and control, etc.; of course, the first valve body 400 can also be an electric control valve, such as a solenoid valve, etc., which can be controlled to open and close by providing a micro switch in the valve control system and a thermocouple on the burner. The specific structures of the main body 100, the fire cover assembly 200, the regulating tube 300, etc. can be set accordingly according to the actual use needs, and will not be described in detail here, but will be described in detail below.

[0041] In some embodiments, the regulating pipe 300 is connected to a second valve body 500 , and the second valve body 500 can be opened and closed according to the gas pressure of the central gas channel 110 .

[0042] It is understandable that if Figure 1 , Figure 2 and Figure 5 As shown, by arranging the second valve body 500 on the regulating pipe 300, when it is necessary to adjust to the high fire gear for use, the first valve body 400 is opened, and the second valve body 500 can be opened and closed according to the gas pressure in the regulating pipe 300. When the gas pressure of the central gas channel 110 is high, the second valve body 500 is opened, so that part of the gas in the central gas channel 110 can be supplemented to the lower pressure in the outer ring gas channel 130; when the gas pressure of the central gas channel 110 is low, the second valve body 500 is closed, so that the central gas channel 110 and the outer ring gas channel 130 cannot be connected, which helps to avoid the pressure reduction of the gas in the central gas channel 110 due to the supplement to the outer ring gas channel 130, and reduces the phenomenon of backfire during its output combustion, which can be beneficial to ensure the gas pressure level of the central gas channel 110 and facilitate use.

[0043] In actual application, the second valve body 500 can be arranged on the front side or rear side of the first valve body 400 along the gas delivery direction in the regulating pipe 300. The specific structure of the second valve body 500 can be set accordingly according to actual use needs, such as a check valve, a safety valve, etc., which will not be described in detail here and will be explained in detail below.

[0044] In certain embodiments, the second valve body 500 includes a valve body 510, an elastic member 520 and a blocking member 530. The valve body 510 is provided with a fourth air inlet channel 511, an air vent 512 and an air outlet channel 513. The fourth air inlet channel 511 is connected to the central gas channel 110, and the air outlet channel 513 is connected to the outer ring gas channel 130. The fourth air inlet channel 511 is connected to the air outlet channel 513 through the air vent 512. The blocking member 530 is movably connected to the valve body 510 and connected to the elastic member 520. The blocking member 530 can block the air vent 512 under the action of the elastic member 520. The blocking member 530 can release the blockage of the air vent 512 under the action of the gas pressure of the fourth air inlet channel 511.

[0045] It is understandable that if Figure 5 and Figure 6 As shown, the fourth air inlet channel 511 is connected to the central gas channel 110 through the regulating tube 300, and the air outlet channel 513 is connected to the outer ring gas channel 130 through the regulating tube 300. The fourth air inlet channel 511 is connected to the air outlet channel 513 through the air vent 512. Under normal circumstances, the sealing member 530 blocks the air vent 512 under the action of the elastic member 520, so that the fourth air inlet channel 511 is disconnected from the air outlet channel 513. When the gas pressure of the central gas channel 110 is high, part of the higher-pressure gas enters the fourth gas inlet channel 511 through the regulating pipe 300. Under the pressure difference between the fourth gas inlet channel 511 and the gas outlet channel 513, the higher-pressure gas in the fourth gas inlet channel 511 pushes open the blocking member 530 blocked at the gas vent 512, compresses the elastic member 520, and connects the fourth gas inlet channel 511 with the gas outlet channel 513, so that the gas in the central gas channel 110 can be supplemented to the lower pressure in the outer ring gas channel 130. When the gas pressure is low, the pressure difference between the fourth air inlet channel 511 and the air outlet channel 513 is not sufficient to overcome the elastic force of the elastic member 520 to move the blocking member 530, and the fourth air inlet channel 511 and the air outlet channel 513 remain disconnected, which helps to avoid the pressure of the gas in the central gas channel 110 being reduced due to the gas being supplemented to the outer ring gas channel 130, and is beneficial to ensuring the gas pressure level of the central gas channel 110. Its structure is simple and reasonable, and can play a certain role in limiting the flow direction of the gas, thereby improving the reliability of the gas supplement balance between the two gas channels and being easy to use.

[0046] In actual application, the blocking member 530 can be a spherical member or have a rubber structure to facilitate its blocking and unblocking of the vent 512. Its specific structure can be changed accordingly with reference to the specific structure of the check valve, which should be understandable to those skilled in the art.

[0047] In some embodiments, the second valve body 500 also includes an adjusting member 540, and the two ends of the elastic member 520 act on the adjusting member 540 and the blocking member 530 respectively. The adjusting member 540 is screwed together with the valve body 510 through a threaded structure and can move relative to the valve body 510 so as to adjust the elastic force of the elastic member 520 acting on the blocking member 530.

[0048] It is understandable that if Figure 6 As shown, when in use, the adjusting member 540 is screwed and moved relative to the valve body 510 through the threaded structure to change the compression degree of the elastic member 520, and adjust the elastic force of the elastic member 520 acting on the blocking member 530, so as to adjust the opening pressure value of the second valve body 500, which is conducive to adjusting the gas pressure level of the central gas channel 110 and improving adaptability. In actual application, the specific connection structure of the adjusting member 540 can be set accordingly according to actual use needs, and is not limited here.

[0049] In some embodiments, an outer ring gas channel 130 is provided with an outer ring air inlet 131 and an outer ring regulating port 132. The outer ring gas channel 130 is connected with the third air inlet channel 160 through the outer ring air inlet 131. The outer ring gas channel 130 is connected with the channel in the regulating pipe 300 through the outer ring regulating port 132. The outer ring regulating port 132 is located on the side of the outer ring gas channel 130 away from the outer ring air inlet 131.

[0050] It is understandable that if Figure 2 , Figure 3 and Figure 5 As shown, since the gas pressure decreases along the gas delivery direction of the outer ring gas channel 130, the gas pressure at the outer ring air inlet 131 is higher, and lower at a location far from the outer ring air inlet 131. By setting the outer ring regulating port 132 on the side far from the outer ring air inlet 131, the gas in the central gas channel 110 can be better supplemented to the lower gas pressure of the outer ring gas channel 130, so that the outer ring gas channel 130 can achieve a more uniform gas distribution and a better gas outlet combustion effect. In actual application, the setting position of the outer ring regulating port 132 can be changed accordingly according to actual use needs, and will not be repeated here.

[0051] In some embodiments, the main body 100 is provided with a buffer channel 170, and the central gas channel 110 and the first air inlet channel 140 are connected through the buffer channel 170. It is understandable that Figure 2 , Figure 4 and Figure 5As shown, the central gas channel 110 and the first air inlet channel 140 are connected through the buffer channel 170. The gas enters from the first air inlet channel 140 and can reduce the gas pressure to a certain extent through the buffer channel 170, thereby reducing the possibility of flame separation during combustion. In actual application, the specific structure of the buffer channel 170 can be set accordingly according to actual use needs and is not limited here.

[0052] In some embodiments, an outer ring air inlet 131 is provided on the outer ring gas channel 130, and the outer ring gas channel 130 is connected with the third air inlet channel 160 through the outer ring air inlet 131, and an outer ring diverter 133 is provided above the outer ring air inlet 131; an inner ring air inlet 121 is provided on the inner ring gas channel 120, and the inner ring gas channel 120 is connected with the second air inlet channel 150 through the inner ring air inlet 121, and an inner ring diverter 122 is provided above the inner ring air inlet 121.

[0053] It is understandable that if Figure 3 and Figure 5 As shown, by setting an outer ring flow divider 133 above the outer ring air inlet 131 to divert the gas output from the third air inlet channel 160, the gas output from each third air inlet channel 160 can be more evenly distributed in the outer ring gas channel 130; by setting an inner ring flow divider 122 above the inner ring air inlet 121 to divert the gas output from the second air inlet channel 150, the gas output from each second air inlet channel 150 can be more evenly distributed in the inner ring gas channel 120. The setting of the outer ring flow divider 133 and the inner ring flow divider 122 can achieve a better uniform gas outlet effect for the outer ring gas channel 130 and the inner ring gas channel 120, so that the present invention can achieve a better combustion and heating effect. In actual application, the specific structures of the outer ring flow divider 133 and the inner ring flow divider 122 can be set accordingly according to actual use needs, and are not limited here.

[0054] In some embodiments, a first air passage 180 for air to enter is provided between the central gas passage 110 and the inner ring gas passage 120 , and a second air passage 190 for air to enter is provided between the inner ring gas passage 120 and the outer ring gas passage 130 .

[0055] It is understandable that if Figure 1 , Figure 2 and Figure 5As shown, when the central gas channel 110, the inner ring gas channel 120 and the outer ring gas channel 130 output gas for combustion through the fire cover assembly 200, air can be supplemented into the space between the central gas channel 110 and the inner ring gas channel 120 and between the inner ring gas channel 120 and the outer ring gas channel 130 through the first air channel 180 and the second air channel 190, respectively, so as to facilitate the supplementary mixing of the output gas and the air, so as to achieve a better and full combustion effect and improve the utilization rate of the gas. In actual application, the specific shapes of the first air channel 180 and the second air channel 190 can be set accordingly according to actual use needs, and are not limited here.

[0056] In some embodiments, the fire cover assembly 200 includes a central fire cover 210, an inner ring fire cover 220 and an outer ring fire cover 230. The central fire cover 210 is arranged on the central gas channel 110 and is provided with a central air outlet 211 connected to the central gas channel 110. The inner ring fire cover 220 is arranged on the inner ring gas channel 120 and is provided with an inner ring air outlet 221 connected to the inner ring gas channel 120. The outer ring fire cover 230 is arranged on the outer ring gas channel 130 and is provided with an outer ring air outlet 231 connected to the outer ring gas channel 130. The inner ring fire cover 220 is in a circular ring shape, and the inner side surface of the inner ring fire cover 220 is inclined to be in an inverted frustum shape. The inner ring air outlet 221 is in a long strip shape and It is arranged on the inner side surface of the inner ring fire cover 220, and a plurality of inner ring air outlet holes 221 are provided, and the plurality of inner ring air outlet holes 221 are evenly spaced and spirally arranged along the circumference of the inner ring fire cover 220, so that the gas output by the plurality of inner ring air outlet holes 221 can form a vortex airflow; the outer ring fire cover 230 is in a circular ring shape, and the inner side surface of the outer ring fire cover 230 is inclined to form an inverted frustum, and the outer ring air outlet holes 231 are in a long strip shape and are arranged on the inner side surface of the outer ring fire cover 230, and a plurality of outer ring air outlet holes 231 are evenly spaced and spirally arranged along the circumference of the outer ring fire cover 230, so that the gas output by the plurality of outer ring air outlet holes 231 can form a vortex airflow.

[0057] It is understandable that if Figure 1 , Figure 2 and Figure 5As shown, the fire cover assembly 200 includes a central fire cover 210, an inner ring fire cover 220 and an outer ring fire cover 230, each fire cover is respectively and one by one covered on each gas channel and is provided with an air outlet hole connected thereto, the inner ring fire cover 220 and the outer ring fire cover 230 are both annular, and the inner side surfaces thereof are both inclined to be in the shape of an inverted truncated cone, a plurality of long strips of inner ring air outlet holes 221 are evenly spaced and spirally arranged along the circumference of the inner ring fire cover 220, and a plurality of long strips of outer ring air outlet holes 231 are evenly spaced and spirally arranged along the circumference of the outer ring fire cover 230, when the gas is output from the inner ring air outlet holes 221 and the outer ring air outlet holes 231, due to the inner ring fire cover 220 and the outer ring air outlet holes 231, the gas is discharged from the inner ring air outlet holes 221 and the outer ring air outlet holes 231. The inner side surfaces of the cover 220 and the outer ring fire cover 230 are both inclined in an inverted cone shape, and the multiple inner ring air outlet holes 221 and the multiple outer ring air outlet holes 231 are all spirally arranged. Vortex airflow can be formed between the gases output by the multiple inner ring air outlet holes 221 and the gases output by the multiple outer ring air outlet holes 231, thereby driving the air in the first air channel 180, the air in the second air channel 190 and the air around the outside to flow, increase the amount of air supplemented at the combustion point of the inner ring fire cover 220 and the outer ring fire cover 230, increase the primary air supplement mixing opportunities of the gas, further improve the combustion efficiency of the gas, and improve the utilization rate of the gas.

[0058] In actual application, the fire cover assembly 200 can also be an integrated structure, and the specific structure of each fire cover and each air outlet can be changed according to actual use needs, such as the inclination degree of the inner side surface of the inner ring fire cover 220 and the outer ring fire cover 230, the number and distribution of each air outlet, etc., which are not limited here.

[0059] A gas cooker according to an embodiment of a second aspect of the present invention comprises a burner according to an embodiment of the first aspect of the present invention.

[0060] The gas cooker according to the embodiment of the present invention can achieve a larger combustion power and combustion area by adopting the above-mentioned burner, and by providing the regulating tube 300 to connect the central gas channel 110 and the outer ring gas channel 130, it can better balance the gas pressure at the outer ring and the center of the burner, achieve a better combustion and heating effect, and facilitate cooking.

[0061] Since other structures of the gas cooker according to the embodiment of the present invention are known to those skilled in the art, they will not be described in detail here.

[0062] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A burner, characterized in that: include: A main body seat (100), wherein the main body seat (100) is provided with a central gas channel (110), an inner ring gas channel (120), an outer ring gas channel (130), a first air intake channel (140), a second air intake channel (150), and a third air intake channel (160); the central gas channel (110) is located on the inner side of a ring formed by the inner ring gas channel (120); the inner ring gas channel (120) is located on the inner side of a ring formed by the outer ring gas channel (130); the central gas channel (110) is in communication with the first air intake channel (140); the inner ring gas channel (120) is in communication with the second air intake channel (150); and the outer ring gas channel (130) is in communication with the third air intake channel (160); A fire cover assembly (200) connected to the main body seat (100), the central gas channel (110), the inner ring gas channel (120) and the outer ring gas channel (130) all being capable of outputting gas through the fire cover assembly (200); a regulating pipe (300) connected to the main body seat (100) and capable of communicating with the central gas channel (110) and the outer ring gas channel (130); the outer ring gas channel (130) is provided with an outer ring air inlet (131) and an outer ring regulating port (132); the outer ring gas channel (130) is communicated with the third air inlet channel (160) via the outer ring air inlet (131); the outer ring gas channel (130) is communicated with a channel in the regulating pipe (300) via the outer ring regulating port (132); the outer ring regulating port (132) is located on a side of the outer ring gas channel (130) away from the outer ring air inlet (131); The first valve body (400) is connected to the regulating pipe (300) and is capable of controlling the opening and closing of the channel in the regulating pipe (300). The regulating pipe (300) is connected to a second valve body (500), and the second valve body (500) is capable of opening and closing according to the gas pressure of the central gas channel (110).

2. The burner according to claim 1, characterized in that The second valve body (500) comprises a valve body (510), an elastic member (520) and a blocking member (530); a fourth air inlet channel (511), an air vent (512) and an air outlet channel (513) are provided in the valve body (510); the fourth air inlet channel (511) is communicated with the central gas channel (110); the air outlet channel (513) is communicated with the outer ring gas channel (130); the fourth air inlet channel (511) is communicated with the central gas channel (110); the fourth air outlet channel (513) is communicated with the outer ring gas channel (130); The valve body (510) is connected to the air outlet passage (513) through the air vent (512); the blocking member (530) is movably connected to the valve body (510) and connected to the elastic member (520); the blocking member (530) can block the air vent (512) under the action of the elastic member (520); and the blocking member (530) can release the blockage of the air vent (512) under the action of the gas pressure of the fourth air inlet passage (511).

3. The burner according to claim 2, characterized in that The second valve body (500) further comprises an adjusting member (540), and two ends of the elastic member (520) act on the adjusting member (540) and the blocking member (530) respectively. The adjusting member (540) is screwed together with the valve body (510) via a threaded structure and is movable relative to the valve body (510) so as to adjust the elastic force of the elastic member (520) acting on the blocking member (530).

4. The burner according to claim 1, characterized in that A buffer channel (170) is provided on the main body seat (100), and the central gas channel (110) and the first air intake channel (140) are connected via the buffer channel (170).

5. The burner according to claim 1, characterized in that An outer ring flow divider (133) is arranged above the outer ring air inlet (131); An inner ring gas channel (120) is provided with an inner ring air inlet (121), the inner ring gas channel (120) is connected to the second air inlet channel (150) via the inner ring air inlet (121), and an inner ring flow divider (122) is provided above the inner ring air inlet (121).

6. The burner according to claim 1, characterized in that A first air passage (180) for air to enter is provided between the central gas passage (110) and the inner ring gas passage (120), and a second air passage (190) for air to enter is provided between the inner ring gas passage (120) and the outer ring gas passage (130).

7. The burner according to claim 6, characterized in that The fire cover assembly (200) comprises a central fire cover (210), an inner ring fire cover (220) and an outer ring fire cover (230); the central fire cover (210) is arranged on the central gas channel (110) and is provided with a central gas outlet (211) communicating with the central gas channel (110); the inner ring fire cover (220) is arranged on the inner ring gas channel (120) and is provided with an inner ring gas outlet (221) communicating with the inner ring gas channel (120); and the outer ring fire cover (230) is arranged on the outer ring gas channel (130) and is provided with an outer ring gas outlet (231) communicating with the outer ring gas channel (130); The inner ring fire cover (220) is in the shape of a ring, the inner side surface of the inner ring fire cover (220) is inclined to form an inverted truncated cone, the inner ring gas outlet hole (221) is in the shape of a long strip and is arranged on the inner side surface of the inner ring fire cover (220), a plurality of the inner ring gas outlet holes (221) are provided, and the plurality of the inner ring gas outlet holes (221) are evenly spaced and spirally arranged along the circumference of the inner ring fire cover (220), so that the gas outputted from the plurality of the inner ring gas outlet holes (221) can form a vortex airflow; The outer ring fire cover (230) is in the shape of a circular ring, the inner side surface of the outer ring fire cover (230) is inclined to form an inverted truncated cone, the outer ring air outlet hole (231) is in the shape of a long strip and is arranged on the inner side surface of the outer ring fire cover (230), a plurality of the outer ring air outlet holes (231) are provided, and the plurality of the outer ring air outlet holes (231) are evenly spaced and spirally arranged along the circumference of the outer ring fire cover (230), so that the gas output by the plurality of the outer ring air outlet holes (231) can form a vortex airflow.

8. A gas cooker, characterized in that: Comprising a burner according to any one of claims 1 to 7.

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