Jet device and gas cooker comprising same

Abstract

The utility model provides an injection device and a gas cooker comprising the same, and relates to the technical field of gas cookers. The injection device comprises an outer ring injection pipe, an outer ring nozzle, a fixing piece and an adjusting piece, an outer ring injection opening of the outer ring nozzle faces an outer ring air inlet of the outer ring injection pipe, the fixing piece is fixedly arranged relative to the outer ring air inlet of the outer ring injection pipe, the outer ring nozzle is arranged on the fixing piece, and the adjusting piece is arranged on the outer ring injection pipe. A gas channel is formed in the fixing piece in the facing direction of the outer ring injection opening, the adjusting piece is connected to the fixing piece in a matched mode and located on the outer side of the outer ring gas inlet, the adjusting piece can move to be close to or away from the outer ring gas inlet in the facing direction of the outer ring injection opening, and the opening size of the outer ring gas inlet is adjusted in the moving process. When the distance between the adjusting piece and the outer ring air inlet is larger, the air inlet cylinder is lengthened, the opening of the outer ring air inlet is larger, the amount of surrounding air injected into the outer ring injection pipe is larger, and therefore the using requirement of outer ring fire is met.

Description

Technical Field

[0001] The utility model relates to the technical field of gas cookers, in particular to a spray device and a gas cooker comprising the same. Background Art

[0002] The ejector-type gas cooker generally includes a combustion part and an injection device. The combustion part generally has an inner ring channel and an outer ring channel so that the combustion part can form an inner ring fire and an outer ring fire at its burner position, and the injection device includes an ejector tube and a nozzle. The ejector tube includes an inner ring ejector tube and an outer ring ejector tube, and the nozzle includes an inner ring nozzle and an outer ring nozzle.

[0003] Among them, an air inlet is provided at one end of the ejector tube corresponding to the nozzle, and the ejector tube is connected to the outside atmosphere through the air inlet. The gas is sprayed into the ejector tube from the nozzle at a high speed, forming a strong ejection in the ejector tube, and the outside air is sucked into the ejector tube from the air inlet, and after mixing with the gas in the ejector tube, it is sent to the combustion part for combustion. At the same time, in order to adjust the amount of air entering, and then adjust the ratio of air and gas, a damper is generally provided at the air inlet position of the ejector tube. The damper is designed as a paddle structure, which rotates around the nozzle to adjust the size of the air inlet. However, since the outer ring fire has a large fire demand, it also requires a large amount of air and gas. When the damper is used to adjust the air intake, it may not meet the needs of the outer ring fire, affecting the user's use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defect in the prior art that the air intake volume may not meet the requirements of using an outer ring fire by adjusting the air flap, and to provide a spray device and a gas cooker including the same.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] An injection device comprises an outer ring ejector tube and an outer ring nozzle, wherein an outer ring ejection port of the outer ring nozzle is arranged toward an outer ring air inlet of the outer ring ejector tube; the injection device further comprises:

[0007] A fixing member, wherein the fixing member is fixedly arranged relative to the outer ring air inlet of the outer ring ejector pipe, the outer ring nozzle is arranged on the fixing member, and a gas passage is opened inside the fixing member along the direction of the outer ring ejection port;

[0008] An adjusting member is connected to the fixing member and is located on the outside of the outer ring air inlet. The adjusting member can move closer to or away from the outer ring air inlet in the direction of the outer ring injection port, and adjust the opening size of the outer ring air inlet during the movement.

[0009] In the present scheme, by fixing the fixing part relative to the outer ring air inlet of the outer ring ejector tube, the outer ring nozzle arranged on the fixing part can also remain fixed relative to the outer ring ejector tube. After passing through the gas channel inside the fixing part, the gas can be more stably sprayed into the interior of the outer ring ejector tube through the outer ring nozzle, and form a strong ejection to suck the outside air from the outer ring air inlet into the ejector tube. At this time, the movement of the adjusting part can be used to adjust the opening size of the outer ring air inlet. Compared with the traditional method of using air flaps for rotational adjustment, this linear approach or distance method allows the distance between the adjusting part and the outer ring air inlet to be adjusted according to actual needs. When the distance is larger, the air inlet cylinder becomes longer, the larger the opening of the outer ring air inlet, and the more surrounding air is ejected into the outer ring ejector tube. Therefore, when the fire demand of the outer ring fire is large, there is enough air to mix with the gas to meet the needs of the outer ring fire and satisfy the user's use.

[0010] Furthermore, the fixing member includes a fixing plate and a fixing column which are interconnected along the direction of the outer ring injection port, the fixing member is connected to the outer ring ejector tube via the fixing plate, the adjusting member is sleeved on the fixing column and can move relative to the fixing column along the direction of the outer ring injection port.

[0011] In the present solution, the fixing plate and the fixing column are connected to each other, so that the fixing plate can be connected to the outer ring ejector tube, which makes it easier to fix the entire fixing component relative to the outer ring ejector tube. It is also easier to set the outer ring nozzle on the fixing column and connect it to the gas channel inside the fixing component. The adjusting component is mounted on the fixing column and moved. When adjusting the opening size of the outer ring air inlet, it will not interfere with the gas nozzle, thereby ensuring the stability of the gas nozzle in injecting gas.

[0012] Furthermore, the regulating member extends outwardly in a radial direction at the end portion close to the outer ring air inlet to form a barrier portion, and in the direction of the outer ring injection port, the outer ring air inlet is located in an area enclosed by the periphery of the barrier portion.

[0013] In the present scheme, through this arrangement, the adjusting member specifically utilizes the barrier portion at its end to adjust the opening size of the outer ring air inlet, and in the direction of the outer ring injection port, the area formed by the outer periphery of the barrier portion can cover the outer ring air inlet. Compared with the case where the area formed by the outer periphery of the barrier portion is smaller than the outer ring air inlet, this arrangement can more effectively and obviously adjust the length of the air inlet cylinder when the barrier portion moves closer to or away from the outer ring air inlet, thereby more effectively and obviously adjusting the opening size of the outer ring air inlet.

[0014] Furthermore, the peripheral structure of the barrier portion is a structure in which protrusions and grooves are continuously and spaced apart;

[0015] And / or, the spraying device further comprises an elastic member, wherein the elastic member is sleeved on the fixing column, and two ends of the elastic member are respectively in contact with the blocking portion and the fixing plate.

[0016] In the present solution, a structure in which projections and grooves are connected and arranged at intervals is provided on the peripheral structure of the barrier part, so that it is easier and more convenient for users or maintenance personnel to apply external force thereto, thereby making it easier for the entire adjustment part to move relative to the fixing part; in addition, an elastic part is also sleeved on the periphery of the fixing column, and the two ends of the elastic part are respectively abutted against the barrier part and the fixing plate to provide a resistance force between the adjustment part and the fixing part to prevent the adjustment part from moving too fast during the process, causing the opening of the outer ring air inlet to suddenly become larger, causing the outer ring flame to suddenly increase, thereby causing a danger.

[0017] Furthermore, the outer surface of the fixing column and the inner surface of the adjusting member are respectively provided with mutually matching threads, and the adjusting member is rotatably connected to the fixing column and moves relative to the fixing column along the direction of the outer ring injection port during the rotation process;

[0018] And / or, the number of the outer ring nozzles is two, the two outer ring nozzles are arranged side by side on the fixing member, and the outer ring injection ports of the two outer ring nozzles are simultaneously arranged toward the outer ring air inlet of the outer ring ejector pipe.

[0019] In the present solution, through this arrangement, the fixed column and the adjusting member are rotationally connected through a thread, and perform relative linear movement during the rotation process, which is simpler in structure and more convenient in operation. At the same time, two outer ring nozzles are provided, and two outer ring nozzles are used to spray gas. Compared with the use of large-aperture nozzles, this method can inject more air into the outer ring injection pipe, thereby increasing the mixing amount of gas and air and meeting the large fire volume requirement of the outer ring flame.

[0020] Furthermore, the outer ring ejector tube is provided with a plurality of first connecting parts on the side wall of the outer ring air inlet, and a plurality of extension arms are correspondingly provided on the fixed plate. The extension arms extend toward one side of the fixed column along the direction of the outer ring injection port, and are connected to the corresponding first connecting parts at the extended ends.

[0021] In this solution, through this arrangement, multiple extension arms on the fixed plate are connected to multiple first connecting parts on the side wall of the outer ring ejector tube, so that the fixing parts can be stably fixed on the outer ring ejector tube, thereby ensuring the stability of the outer ring nozzle in ejecting gas.

[0022] Furthermore, the number of the first connecting members is two, the two first connecting members are arranged opposite to each other on the side wall of the outer ring ejector tube, and the connecting line between the two first connecting members is arranged at an angle to the horizontal line;

[0023] And / or, the injection device also includes an inner ring ejector tube and an inner ring nozzle, the inner ring injection port of the inner ring nozzle is arranged toward the inner ring air inlet of the inner ring ejector tube, the inner ring ejector tube and the outer ring ejector tube are arranged side by side, the inner ring ejector tube is provided with a second connecting piece on the side wall of the inner ring air inlet, and the second connecting piece is connected to at least one of the first connecting pieces.

[0024] In the present scheme, through this arrangement, when the inner ring ejector tube is horizontally arranged next to the outer ring ejector tube, the first connecting member, after being connected to the extension arm of the fixing member, can avoid the fixing plate of the fixing member from blocking the surroundings of the inner ring ejector tube, thereby not affecting the injection of air by the inner ring ejector tube; in addition, when the inner ring ejector tube and the outer ring ejector tube are arranged side by side, the second connecting member on the side wall of the inner ring ejector tube is connected to at least one first connecting member, so that during the process of the inner ring nozzle and the outer ring nozzle injecting gas, the inner ring ejector tube and the outer ring ejector tube can remain stable, so as to further improve the stability and reliability of the injection device during use.

[0025] Furthermore, the injection device also includes an inner ring ejector tube and an inner ring nozzle, the inner ring injection port of the inner ring nozzle is arranged toward the inner ring air inlet of the inner ring ejector tube, the inner ring ejector tube and the outer ring ejector tube are arranged side by side, and the inner diameter of the inner ring nozzle is larger than the inner diameter of the outer ring nozzle.

[0026] In this solution, when the inner ring ejector tube and the outer ring ejector tube are arranged side by side, by setting the inner diameter of the inner ring nozzle larger than the inner diameter of the outer ring nozzle, the energy of the inner ring fire is larger and more concentrated, and the inner ring fire can be used to heat the pot extremely quickly, which saves time and retains the nutrition of the ingredients.

[0027] Furthermore, the end surface where the inner ring injection port is located is arranged to protrude relative to the end surface where the outer ring injection port is located.

[0028] In this scheme, when the inner diameter of the inner ring nozzle is larger than the inner diameter of the outer ring nozzle, the end face where the inner ring injection port is located is extended relative to the end face where the outer ring injection port is located, so that the length of the inner ring ejection tube is longer, which is beneficial to improve the inner ring ejection coefficient.

[0029] A gas cooker, comprising:

[0030] A spraying device as described above;

[0031] The combustion part comprises an inner ring channel and an outer ring channel, wherein the inner ring channel is connected to the inner ring ejector tube, and the outer ring channel is connected to the outer ring ejector tube.

[0032] In this scheme, through this setting, the inner ring ejector tube can be connected to the inner ring channel to form an inner ring fire, thereby rapidly heating the pot, and the outer ring ejector tube can be connected to the outer ring channel to form an outer ring fire, thereby satisfying the user's demand for large fire volume of the outer ring fire.

[0033] The positive and progressive effects of the utility model are:

[0034] By fixing the fixing part relative to the outer ring air inlet of the outer ring ejector tube, the outer ring nozzle arranged on the fixing part can also remain fixed relative to the outer ring ejector tube. After passing through the gas channel inside the fixing part, the gas can be more stably sprayed through the outer ring nozzle into the interior of the outer ring ejector tube, and form a strong ejection to suck the outside air from the outer ring air inlet into the ejector tube; at this time, the movement of the adjusting part can be used to adjust the opening size of the outer ring air inlet. Compared with the traditional method of using air flaps for rotational adjustment, this linear approach or distance method allows the distance between the adjusting part and the outer ring air inlet to be adjusted according to actual needs. When the distance is larger, the air inlet cylinder becomes longer, the opening of the outer ring air inlet becomes larger, and the amount of surrounding air injected into the outer ring ejector tube is more. Therefore, when the fire demand of the outer ring fire is large, there is enough air and gas to mix, so as to meet the needs of the outer ring fire and satisfy the use of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the assembly structure of the injection device, the combustion part and the liquid receiving tray in one embodiment of the utility model.

[0036] Figure 2 It is a schematic diagram of the assembly structure of the injection device and the combustion part in one embodiment of the utility model.

[0037] Figure 3 It is a schematic diagram of the overall structure of the injection device in one embodiment of the utility model.

[0038] Figure 4 The utility model is a schematic diagram of the assembly structure of the inner ring ejector tube and the outer ring ejector tube in the injection device in one embodiment.

[0039] Figure 5 It is a schematic diagram of the structure of the injection device at the outer ring nozzle in one embodiment of the utility model.

[0040] Figure 6 It is a structural schematic diagram of a fixing member in one embodiment of the utility model.

[0041] Description of reference numerals:

[0042] Injection device 1

[0043] Outer ring ejector tube 11

[0044] Outer ring air inlet 111

[0045] The first connecting member 112

[0046] Outer ring nozzle 12

[0047] Fixing 13

[0048] Fixed plate 131

[0049] Fixed column 132

[0050] Extension arm 133

[0051] Adjustment 14

[0052] Blocking part 141

[0053] Elastic member 15

[0054] Inner ring ejector tube 16

[0055] The second connecting member 161

[0056] Inner ring air inlet 162

[0057] Air flap 163

[0058] Inner ring nozzle 17

[0059] Combustion Department 2

[0060] Inner Ring Channel 21

[0061] Outer Ring Channel 22

[0062] Liquid tray 3

[0063] The direction of the outer ring injection port is L DETAILED DESCRIPTION

[0064] The embodiments of the utility model are described in detail below, and examples of the embodiments 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 intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0065] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0066] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0067] This embodiment provides a gas cooker, such as Figure 1 , Figure 2 and Figure 3 As shown, the gas stove includes an injection device 1, a combustion part 2 and a liquid collecting pan 3, wherein the liquid collecting pan 3 is sleeved and fixed on the combustion part 2, and then the liquid collecting pan 3 is installed on the stove top, the burner head of the combustion part 2 is located above the stove top, and the inner ring channel 21 and the outer ring channel 22 of the combustion part 2 are located inside the stove, that is, located below the stove top, and the injection device 1 injects gas into the inner ring channel 21 and the outer ring channel 22, so that the combustion part 2 can form an inner ring fire and an outer ring fire at the position of its burner head, thereby heating the pot above the combustion part 2.

[0068] Combination Figure 3 and Figure 4 As shown, the injection device 1 includes an outer ring ejector tube 11 and an inner ring ejector tube 16, the outer ring ejector tube 11 is connected to the outer ring channel 22 of the combustion section 2, and the inner ring ejector tube 16 is connected to the inner ring channel 21 of the combustion section 2. Corresponding to the outer ring ejector tube 11 and the inner ring ejector tube 16, the injection device 1 is also provided with an outer ring nozzle 12 and an inner ring nozzle 17, the outer ring injection port of the outer ring nozzle 12 is arranged toward the outer ring air inlet 111 of the outer ring ejector tube 11, and the inner ring injection port of the inner ring nozzle 17 is arranged toward the inner ring air inlet 162 of the inner ring ejector tube 16.

[0069] Further, combined with Figure 5 and Figure 6As shown, the injection device 1 is further provided with a fixing part 13 and an adjusting part 14 at the outer ring air inlet 111 of the outer ring ejector tube 11. The fixing part 13 is fixedly arranged relative to the outer ring air inlet 111 of the outer ring ejector tube 11, and the outer ring nozzle 12 is arranged on the fixing part 13, and a gas passage is provided inside the fixing part 13 along the direction L of the outer ring ejector port. The adjusting part 14 is connected to the fixing part 13 and is located outside the outer ring air inlet 111. The adjusting part 14 can move closer to or away from the outer ring air inlet 111 in the direction L of the outer ring ejector port, and adjust the opening size of the outer ring air inlet 111 during the movement. It should be noted that the moving direction of the adjusting part 14 is the direction L of the outer ring ejector port.

[0070] By fixing the fixing member 13 relative to the outer ring air inlet 111 of the outer ring ejector tube 11, the outer ring nozzle 12 arranged on the fixing member 13 can also be kept fixed relative to the outer ring ejector tube 11. After the gas passes through the gas channel inside the fixing member 13, it can be more stably ejected through the outer ring nozzle 12 into the inner part of the outer ring ejector tube 11, and a strong ejection is formed to suck the outside air from the outer ring air inlet 111 into the ejector tube; at this time, the opening size of the outer ring air inlet 111 can be adjusted by moving the adjusting member 14 Compared with the traditional method of using the air flap 163 for rotational adjustment, this linear approach or distance method allows the distance between the adjustment member 14 and the outer ring air inlet 111 to be adjusted according to actual needs. When the distance is larger, the air inlet cylinder becomes longer, the opening of the outer ring air inlet 111 becomes larger, and the amount of surrounding air introduced into the outer ring introduction pipe 11 is more. Therefore, when the fire demand of the outer ring fire is large, there is enough air to mix with the gas to meet the needs of the outer ring fire and satisfy the user's use.

[0071] like Figure 5 and Figure 6As shown, the fixing member 13 specifically includes a fixing plate 131 and a fixing column 132 connected to each other along the direction L of the outer ring injection port, wherein in the direction L of the outer ring injection port, the fixing column 132 is arranged at the central part of one side of the fixing plate 131, and a gas channel is formed at the central axis position of the fixing plate 131 and the fixing column 132, and the outer ring nozzle 12 is fixed on an end face of the fixing column 132 away from the fixing plate 131. The fixing member 13 is specifically connected to the outer ring ejector tube 11 through the fixing plate 131, and the adjusting member 14 is sleeved on the fixing column 132, and can move relative to the fixing column 132 along the direction L of the outer ring injection port, so as to approach or move away from the outer ring air inlet 111 during the movement. By adopting the method of interconnecting the fixing plate 131 and the fixing column 132, the fixing plate 131 can be used to connect to the outer ring ejector tube 11, which makes it easier to fix the entire fixing part 13 relative to the outer ring ejector tube 11. It is also easier to set the outer ring nozzle 12 on the fixing column 132 and connect it to the gas channel inside the fixing part 13. The adjusting part 14 is mounted on the fixing column 132 and moved. When adjusting the opening size of the outer ring air inlet 111, it will not interfere with the gas nozzle, thereby ensuring the stability of the gas nozzle in injecting gas.

[0072] like Figure 5 As shown, when the adjusting member 14 is sleeved on the periphery of the fixing column 132, the two ends of the adjusting member 14 along the direction L of the outer ring injection port are respectively close to the fixing plate 131 and the outer ring air inlet 111, wherein the end close to the outer ring air inlet 111 extends outward along its radial direction to form a baffle 141, and in the direction L of the outer ring injection port, the outer ring air inlet 111 is located in the area surrounded by the periphery of the baffle 141. In other words, the outer size of the baffle 141 is larger than the outer size of the outer ring air inlet 111, so that when the adjusting member 14 abuts against the outer ring air inlet 111, the outer ring air inlet 111 can be completely sealed.

[0073] Through this arrangement, the adjusting member 14 specifically uses the baffle 141 at its end to adjust the opening size of the outer ring air inlet 111, and in the direction L of the outer ring injection port, the area formed by the outer periphery of the baffle 141 can cover the outer ring air inlet 111. Compared with the case where the area formed by the outer periphery of the baffle 141 is smaller than the outer ring air inlet 111, this arrangement can more effectively and obviously adjust the length of the air inlet cylinder when the baffle 141 moves closer to or away from the outer ring air inlet 111, thereby more effectively and obviously adjusting the opening size of the outer ring air inlet 111. However, it should be noted that in other embodiments, it is not necessary to use the baffle 141 to adjust the opening size of the outer ring air inlet 111. For example, the corresponding end of the adjusting member 14 can be designed into any structure that can achieve baffles. At the same time, the outer size of the baffle 141 can also be adjusted according to specific needs without fixed restrictions.

[0074] When the baffle 141 is used to adjust the opening size of the outer ring air inlet 111, the peripheral structure of the baffle 141 is designed as a structure in which protrusions and grooves are continuously arranged at intervals, so that it is easier and more convenient for users or maintenance personnel to apply external force to it, so that the entire adjustment part is easier to move relative to the fixing member 13; at the same time, an elastic member 15 is also arranged between the baffle 141 and the fixing plate 131, and the elastic member 15 is sleeved on the fixing column 132, and the two ends of the elastic member 15 are respectively abutted against the baffle 141 and the fixing plate 131 to provide a resistance between the adjustment member 14 and the fixing member 13 to prevent the adjustment member 14 from moving too fast, causing the opening of the outer ring air inlet 111 to suddenly become larger, causing the outer ring flame to suddenly increase and thus cause danger. Specifically, the elastic member 15 can be a compression spring, or other elastic elements existing in the prior art.

[0075] like Figure 5 and Figure 6 As shown, the adjusting member 14 is sleeved on the outer surface of the fixed column 132 and can move relative to the fixed column 132. Specifically, the outer surface of the fixed column 132 and the inner surface of the adjusting member 14 are respectively provided with mutually matching threads, and the adjusting member 14 is rotatably connected to the outer surface of the fixed column 132, and in the process of rotating relative to the fixed column 132, the adjusting member 14 is moved relative to the fixed column 132 along the direction L of the outer ring injection port. Through this arrangement, the fixed column 132 and the adjusting member 14 are rotatably connected through threads, and move relatively linearly during the rotation process, which is simpler in structure and more convenient in operation; of course, in other embodiments, other methods in the prior art can also be used to realize the movement of the adjusting member 14 relative to the fixed column 132, such as screw rotation, gear meshing, etc.

[0076] In addition, in this embodiment, the number of outer ring nozzles 12 is set to two, and the two outer ring nozzles 12 are arranged side by side on one end face of the fixing member 13, and the outer ring injection ports of the two outer ring nozzles 12 are simultaneously arranged toward the outer ring air inlet 111 of the outer ring ejector tube 11. By setting the outer ring nozzles 12 to two, and using the two outer ring nozzles 12 to eject the gas, this method can inject more air into the outer ring ejector tube 11 compared to using a large-aperture nozzle, thereby increasing the amount of gas and air mixed, and meeting the large fire volume requirements of the outer ring flame. Of course, in other embodiments, a large-aperture nozzle can be used, and even more outer ring nozzles 12 can be set, without fixed restrictions.

[0077] like Figure 3 , Figure 5 and Figure 6 As shown, the outer ring ejector tube 11 is provided with two first connecting members 112 on the side wall of the outer ring air inlet 111, and each first connecting member 112 is provided with a connecting hole at the end extending outward relative to the outer ring ejector tube 11. Two extension arms 133 are provided on the fixing plate 131 corresponding to the two first connecting members 112, and the extension wall extends toward one side of the fixing column 132 along the direction L of the outer ring ejection port, and a connecting hole is also provided at the extended end. The connecting hole of the extension wall is provided corresponding to the connecting hole of the first connecting member 112, and then fixed by fastening screws or bolts, so that the fixing member 13 is relatively fixed relative to the outer ring ejector tube 11.

[0078] Through this arrangement, the two extension arms 133 on the fixing plate 131 are connected to the two first connectors 112 on the side wall of the outer ring ejector tube 11, so that the fixing member 13 can be stably fixed on the outer ring ejector tube 11, thereby ensuring the stability of the outer ring nozzle 12 spraying the gas. It should be noted that in this embodiment, two first connectors 112 are respectively connected to the two extension arms 133, which can better achieve the fixing effect, and at the same time will not cause excessive interference to the inner ring ejector tube 16 and the inner ring nozzle 17 next to it. However, in other embodiments, the number of the first connectors 112 and the extension wall can be adjusted as needed, and there is no fixed restriction.

[0079] like Figure 4As shown, when there are two first connecting members 112, the two first connecting members 112 are arranged opposite to each other on the side wall of the outer ring ejector tube 11, and the line connecting the two first connecting members 112 is arranged at an angle to the horizontal line. In other words, the line connecting the two first connecting members 112 is arranged obliquely relative to the horizontal line. With this arrangement, when the inner ring ejector tube 16 is arranged horizontally and side by side next to the outer ring ejector tube 11, after the first connecting member 112 is connected to the extension arm 133 of the fixing member 13, the fixing plate 131 of the fixing member 13 can avoid blocking the surrounding of the inner ring ejector tube 16, thereby not affecting the ejection of air by the inner ring ejector tube 16.

[0080] In addition, if Figure 3 and Figure 4 As shown, the inner ring ejector tube 16 and the outer ring ejector tube 11 of the injection device 1 are arranged side by side, and the inner ring ejector tube 16 is provided with a second connecting member 161 on the side wall of the inner ring air inlet 162, and the second connecting member 161 is connected to one of the first connecting members 112, so that during the process of the inner ring nozzle 17 and the outer ring nozzle 12 injecting fuel gas, the inner ring ejector tube 16 and the outer ring ejector tube 11 can remain stable, so as to further improve the stability and reliability of the injection device 1 during use.

[0081] When the inner ring ejector tube 16 and the outer ring ejector tube 11 are arranged side by side, the direction of the inner ring ejection port is the same as the direction L of the outer ring ejection port. At this time, the inner diameter of the inner ring nozzle 17 is set to be larger than the inner diameter of the outer ring nozzle 12, so that the energy of the inner ring fire is larger and more concentrated, and the inner ring fire can be used to heat the pot very quickly, which saves more time and can retain the nutrition of the food. In addition, in the direction L of the outer ring ejection port, the end face where the inner ring ejection port is located is extended relative to the end face where the outer ring ejection port is located, so that the length of the inner ring ejector tube 16 is longer, which is conducive to improving the inner ring ejection coefficient.

[0082] By arranging the injection device 1 on the gas cooker, the inner ring channel 21 of the combustion part 2 is connected to the inner ring ejector tube 16 of the injection device 1, and finally an inner ring fire is formed to heat the cookware extremely quickly; and the outer ring channel 22 of the combustion part 2 is connected to the outer ring ejector tube 11 of the injection device 1, and finally an outer ring fire is formed to meet the user's demand for a large amount of outer ring fire.

[0083] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. An injection device, comprising an outer ring ejector tube and an outer ring nozzle, wherein the outer ring ejection port of the outer ring nozzle is arranged toward the outer ring air inlet of the outer ring ejector tube; characterized in that: The injection device also includes: A fixing member, wherein the fixing member is fixedly arranged relative to the outer ring air inlet of the outer ring ejector pipe, the outer ring nozzle is arranged on the fixing member, and a gas passage is opened inside the fixing member along the direction of the outer ring ejection port; An adjusting member is connected to the fixing member and is located on the outside of the outer ring air inlet. The adjusting member can move closer to or away from the outer ring air inlet in the direction of the outer ring injection port, and adjust the opening size of the outer ring air inlet during the movement.

2. The spraying device according to claim 1, characterized in that The fixing member includes a fixing plate and a fixing column which are connected to each other along the direction of the outer ring injection port. The fixing member is connected to the outer ring ejector tube via the fixing plate. The adjusting member is sleeved on the fixing column and can move relative to the fixing column along the direction of the outer ring injection port.

3. The spraying device according to claim 2, characterized in that The regulating member extends outwardly along its radial direction at the end portion close to the outer ring air inlet to form a baffle portion. In the direction of the outer ring injection port, the outer ring air inlet is located in the area surrounded by the periphery of the baffle portion.

4. The spraying device according to claim 3, characterized in that The peripheral structure of the baffle portion is a structure in which protrusions and grooves are continuously and spaced apart; And / or, the spraying device further comprises an elastic member, wherein the elastic member is sleeved on the fixing column, and two ends of the elastic member are respectively in contact with the blocking portion and the fixing plate.

5. The spraying device according to claim 2, characterized in that The outer surface of the fixing column and the inner surface of the adjusting member are respectively provided with mutually matching threads, and the adjusting member is rotatably connected to the fixing column and moves relative to the fixing column along the direction of the outer ring injection port during the rotation process; And / or, the number of the outer ring nozzles is two, the two outer ring nozzles are arranged side by side on the fixing member, and the outer ring injection ports of the two outer ring nozzles are simultaneously arranged toward the outer ring air inlet of the outer ring ejector pipe.

6. The spraying device according to claim 2, characterized in that The outer ring ejector pipe is provided with a plurality of first connecting parts on the side wall of the outer ring air inlet, and a plurality of extension arms are correspondingly provided on the fixed plate. The extension arms extend toward one side of the fixed column along the direction of the outer ring injection port and are connected to the corresponding first connecting parts at the extended ends.

7. The spraying device according to claim 6, characterized in that The number of the first connecting members is two, the two first connecting members are arranged opposite to each other on the side wall of the outer ring ejector tube, and the connecting line between the two first connecting members is arranged at an angle to the horizontal line; And / or, the injection device also includes an inner ring ejector tube and an inner ring nozzle, the inner ring injection port of the inner ring nozzle is arranged toward the inner ring air inlet of the inner ring ejector tube, the inner ring ejector tube and the outer ring ejector tube are arranged side by side, the inner ring ejector tube is provided with a second connecting piece on the side wall of the inner ring air inlet, and the second connecting piece is connected to at least one of the first connecting pieces.

8. The spraying device according to any one of claims 1 to 6, characterized in that The injection device also includes an inner ring ejector tube and an inner ring nozzle. The inner ring ejection port of the inner ring nozzle is arranged toward the inner ring air inlet of the inner ring ejector tube. The inner ring ejector tube and the outer ring ejector tube are arranged side by side. The inner diameter of the inner ring nozzle is larger than the inner diameter of the outer ring nozzle.

9. The spraying device according to claim 8, characterized in that The end surface where the inner ring injection port is located is arranged to protrude relative to the end surface where the outer ring injection port is located.

10. A gas cooker, characterized in that: The gas cooker comprises: The spraying device according to any one of claims 8 or 9; The combustion part comprises an inner ring channel and an outer ring channel, wherein the inner ring channel is connected to the inner ring ejector tube, and the outer ring channel is connected to the outer ring ejector tube.

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