Gas stove

Abstract

The utility model discloses a gas stove, which relates to the technical field of stoves, and comprises a stove body, a flat stamping burner, a gas combination valve and an ignition component, and the stove body is provided with a mounting groove; the flat stamping burner comprises a body and an injection pipe, the body comprises a cambered surface ring cover and a bottom ring plate, the cambered surface ring cover and the bottom ring plate are connected to define a mixing cavity, an inner cambered surface section and an outer cambered surface section are formed on the side, opposite to the bottom ring plate, of the cambered surface ring cover, and the inner cambered surface section is obliquely arranged in an outward expanding mode from bottom to top; a plurality of flame holes are formed in the inner cambered surface section in the circumferential direction of the cambered surface ring cover; the injection pipe penetrates through the bottom ring plate and communicates with the mixing cavity, and an air inlet is formed in one end of the injection pipe; the gas combination valve is connected with the injection pipe and used for supplying gas to the flat stamping combustor. The ignition assembly comprises an electrode bar, a thermocouple and a gas collecting hood, the electrode bar and the thermocouple penetrate through the bottom wall of the mounting groove and are arranged close to the flame hole, and the gas collecting hood covers the electrode bar and the thermocouple; according to the scheme, the stability and the concentration ratio of flames of the gas stove are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stoves, and particularly relates to a gas stove. Background Art

[0002] A gas stove refers to a device used to burn fuel to generate heat, which is usually used for heating, cooking or industrial production. The burner is a key component in a gas stove, responsible for mixing fuel and air and igniting them to produce a combustion reaction to provide heat energy. In the related art, the flame holes of the burner of a gas stove are usually uniformly arranged upward on the burner cap, and the flame holes are arranged in an upwardly dispersed layout, resulting in an unsatisfactory fuel injection angle or direction, so that the fuel cannot effectively form a compact flame, and thus the stability and concentration of the flame of the gas stove are relatively poor. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a gas stove, aiming to improve the stability and concentration of the flame of the gas stove.

[0004] To achieve the above object, the gas stove proposed by the utility model includes:

[0005] A stove body, the stove body is provided with an installation groove;

[0006] A flat stamping burner, the flat stamping burner includes a body and an ejector tube, the body is arranged in the installation groove, the ejector tube penetrates through the bottom wall of the installation groove, the body includes an arc-shaped ring cover and a bottom ring plate, the arc-shaped ring cover and the bottom ring plate are connected and enclosed to form a mixing chamber, an inner arc surface section and an outer arc surface section are formed on the side of the arc-shaped ring cover facing away from the bottom ring plate, the inner arc surface section is arranged to be inclined and expand outward from bottom to top, and a plurality of flame holes are arranged along the circumferential direction of the arc-shaped ring cover on the inner arc surface section; the ejector tube penetrates through the bottom ring plate and communicates with the mixing chamber, and an air inlet is arranged at one end of the ejector tube away from the bottom ring plate;

[0007] A gas combination valve, the gas combination valve is arranged on the stove body, the gas combination valve is connected with the ejector tube and is used for supplying gas to the flat stamping burner; and

[0008] An ignition assembly, the ignition assembly includes an electrode rod, a thermocouple and a gas collecting hood, the electrode rod and the thermocouple are spaced apart and penetrate through the bottom wall of the installation groove and are arranged close to the flame holes, and the gas collecting hood covers the electrode rod and the thermocouple and is arranged on the bottom wall of the installation groove.

[0009] In an embodiment of the utility model, connecting ring edges are formed on both the inner ring wall and the outer ring wall of the arc-shaped ring cover, and connecting folded edges are formed on both the inner ring wall and the outer ring wall of the bottom ring plate. The connecting folded edges and the bottom ring plate enclose a limiting groove, and the connecting ring edges are accommodated in the limiting groove; the connecting folded edges and the connecting ring edges are connected by a riveting process; and / or,

[0010] An arc-shaped convex cover is formed in the middle of the arc-shaped ring cover, and a first connecting plate is formed in the middle of the bottom ring plate. The first connecting plate is arranged corresponding to the arc-shaped convex cover and is connected with the arc-shaped convex cover to enclose a cavity, and the cavity is communicated with the mixing cavity.

[0011] In an embodiment of the utility model, a sealing protrusion is formed at one end of the ejector tube close to the bottom ring plate. The bottom ring plate is provided with a mounting hole, and a part of the ejector tube extends into the mounting hole, and the sealing protrusion abuts against the edge of the mounting hole; and / or,

[0012] The flat stamping burner includes a fixing plate, the fixing plate is connected to the side of the bottom ring plate facing away from the arc-shaped ring cover, the fixing plate is arranged on the bottom wall of the mounting groove, and a thermocouple fixing hole and an electrode rod fixing hole are formed in the fixing plate near the flame hole. The electrode rod passes through the electrode rod fixing hole of the fixing plate, and the thermocouple passes through the thermocouple fixing hole of the fixing plate.

[0013] In an embodiment of the utility model, the gas combination valve includes;

[0014] A regulator;

[0015] A safety valve, the safety valve is connected to the regulator;

[0016] A three-way pipe fitting, the three-way pipe fitting has two inlet pipes and one outlet pipe, and the outlet pipe is connected to the regulator;

[0017] Two one-way valve parts, each one-way valve part is connected to one of the inlet pipes, each one-way valve part is connected to a gas cylinder and cooperates with the gas cylinder to supply gas to the inlet pipe; and

[0018] A check assembly, the check assembly includes two movable seals and two plugs. Each plug is connected to the inner peripheral wall of one of the inlet pipes, each plug is provided with an inlet hole, the inlet hole is communicated with the inlet pipe, the movable seal is movably arranged at one end of the plug away from the one-way valve part along the extending direction of the inlet pipe, and one end of the movable seal away from the plug is elastically connected to the wall surface of the inlet pipe and can move close to or away from the plug so as to close or communicate the inlet pipe and the outlet pipe.

[0019] In an embodiment of the utility model, the check assembly includes two first elastic members. A first limiting step is provided on the peripheral wall surface of each intake pipeline. A second limiting step is provided at one end of each movable seal member away from the plug. Each first elastic member is located between one first limiting step and one second limiting step. A sealing column is formed at one end of each movable seal member close to the plug. Each sealing column can open or close one intake hole;

[0020] A sealing section is formed at one end of each sealing column away from the movable seal member. The cross-sectional area of the sealing section gradually decreases from the end close to the movable seal member to the end away from the movable seal member;

[0021] The check assembly includes two air stopping blocks. Each air stopping block is sleeved on one sealing column. The sealing section is exposed from the air stopping block. An annular sealing protrusion is formed on one side of each air stopping block facing away from the movable seal member. Each annular sealing protrusion can abut against the side wall of one plug and is arranged around the orifice edge of the intake hole.

[0022] In an embodiment of the utility model, the gas combination valve includes a joint assembly. The joint assembly includes two die-cast joints. The two die-cast joints are respectively connected to the two intake pipelines of the tee pipe fitting. The die-cast joint is provided with an installation channel. The installation channel is communicated with the intake pipeline. Each one-way valve member is connected to the installation channel of one die-cast joint;

[0023] The joint assembly includes a plurality of first sealing rings and two pins. The plurality of first sealing rings are sleeved on one end of the die-cast joint close to the intake pipeline and abut against the inner peripheral wall of the intake pipeline; A limiting ring groove is provided at one end of each die-cast joint close to the intake pipeline. The two pins are spaced and penetrate through the intake pipeline to abut against the groove wall of the limiting ring groove to limit the movement of the die-cast joint along the axial direction of the intake pipeline.

[0024] In an embodiment of the utility model, the one-way valve member includes a thimble, a floating rod and a second sealing ring. The thimble is threadedly connected to the installation channel. The thimble is provided with an intake channel. The intake channel is communicated with the installation channel. The floating rod is in clearance fit with the intake channel and is elastically connected to the wall surface of the installation channel. A limiting ring block and a gas blocking block are provided on the floating rod. The second sealing ring is sleeved on the floating rod and is located between the limiting ring block and the gas blocking block. The floating rod can move close to or away from the die-cast joint to close or open the intake channel and the installation channel;

[0025] The one-way valve member includes a gasket and a second elastic member. A limiting block is provided on the thimble. An air inlet interface is formed at one end of the die-cast joint away from the air inlet pipe. The gasket is arranged between the limiting block and the bottom wall of the air inlet interface.

[0026] A third limiting step is provided on the peripheral wall surface of the installation channel. The second elastic member is sleeved on the floating rod and is located between the third limiting step and the limiting ring block.

[0027] The cross-sectional area of the air-blocking block gradually decreases from one end close to the second sealing ring to the end far from the second sealing ring.

[0028] In an embodiment of the utility model, the safety valve includes a valve body, a control valve rod and a valve nozzle. The valve body is respectively connected to the regulator, the control valve rod and the valve nozzle. The control valve rod is used to control the gas to spray out from the valve nozzle. The valve nozzle is connected to the ejector pipe.

[0029] The gas stove includes a valve body mounting plate, a control knob and a valve rod mounting plate. The valve body mounting plate is arranged on the stove body. The tee pipe fitting is connected to the valve body mounting plate. The valve rod mounting plate is connected to the valve body mounting plate. The control valve rod passes through the valve rod mounting plate. The control knob is connected to the control valve rod.

[0030] In an embodiment of the utility model, the gas stove includes a plurality of enclosing plates and a plurality of arc-shaped support columns. The plurality of arc-shaped support columns are arranged on the stove body at intervals. Each enclosing plate is connected to one arc-shaped support column. The plurality of enclosing plates enclose to form a receiving cavity for receiving the gas combination valve. One of the enclosing plates is rotatably connected to another enclosing plate to open or close the receiving cavity.

[0031] In an embodiment of the utility model, the gas stove includes a tabletop assembly and a plurality of second connecting plates. The plurality of second connecting plates are arranged on the stove body at intervals. Each arc-shaped support column is connected to one side of the second connecting plate facing the enclosing plate. The tabletop assembly includes a table board and a table cover. The table board is connected to the sides of the plurality of second connecting plates facing away from the enclosing plate. The table board is provided with a through hole, and the through hole is communicated with the installation groove. The table cover covers the table board to open or close the through hole.

[0032] In the technical solution of the present utility model, a gas cylinder is connected to the gas combination valve to supply fuel to the flat stamping burner. The fuel enters the mixing chamber through the ejector tube, and air enters the mixing chamber through the air inlet of the ejector tube. The air and fuel are fully mixed in the mixing chamber. The electrode rod generates an arc or an electric spark to ignite the fuel. The thermocouple is used to monitor whether the flame of the gas stove is ignited or continuously burning. If no flame is detected or the flame goes out, the gas combination valve will stop the fuel supply to ensure safety. The air hood is used to guide and concentrate the mixture of fuel and air, protect the flame from the influence of external wind, and ensure the flame stability and combustion efficiency. Since a plurality of the flame holes are all arranged towards the center direction of the arc-shaped ring cover, the fuel is centrally injected, so that the fuel burns centrally, and the flame gathers towards the center through a plurality of the flame holes to form a compact flame, thereby improving the stability and concentration of the flame of the gas stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0034] Figure 1 It is a schematic structural diagram of an embodiment of a gas stove provided by the present utility model;

[0035] Figure 2 It is an exploded structural diagram of an embodiment of a gas stove provided by the present utility model;

[0036] Figure 3 It is a three-dimensional structural diagram of an embodiment of a flat stamping burner provided by the present utility model;

[0037] Figure 4 It is a cross-sectional view of an embodiment of a flat stamping burner provided by the present utility model;

[0038] Figure 5 For Figure 4 the partial enlarged view at A in

[0039] Figure 6 It is an exploded structural diagram of an embodiment of a flat stamping burner provided by the present utility model;

[0040] Figure 7 It is a schematic structural diagram of an embodiment of a gas combination valve provided by the present utility model;

[0041] Figure 8 It is the first cross-sectional view of an embodiment of a gas combination valve provided by the present utility model;

[0042] Figure 9 For Figure 8 Partial enlarged view at position B in the figure;

[0043] Figure 10 This is the second cross-sectional view of an embodiment of the gas combination valve provided by the present utility model.

[0044] Explanation of the reference numerals in the drawings:

[0045] 1000, gas furnace;

[0046] 1-100, flat stamping burner; 1-1, body; 1-11, arc-shaped ring cover; 1-111, inner arc surface section; 1-111a, flame holes; 1-112, outer arc surface section; 1-113, connecting ring edge; 1-114, arc-shaped convex cover; 1-12, bottom ring plate; 1-121, connecting folded edge; 1-122, limiting groove; 1-123, first connecting plate; 1-124, cavity; 1-125, mounting hole; 1-13, mixing chamber; 1-2, ejector tube; 1-21, air inlet; 1-22, sealing protrusion; 1-3, fixing plate; 1-31, thermocouple fixing hole; 1-32, electrode rod fixing hole;

[0047] 2-100, gas combination valve; 2-1, tee pipe fitting; 2-11, intake pipe; 2-111, first limiting step; 2-12, outlet pipe; 2-121, outlet joint; 2-2, check valve member; 2-21, thimble; 2-211, intake passage; 2-212, limiting block; 2-22, floating rod; 2-221, limiting ring block; 2-222, air blocking block; 2-23, second sealing ring; 2-24, gasket; 2-25, second elastic member; 2-3, check valve assembly; 2-31, movable seal; 2-311, second limiting step; 2-312, sealing column; 2-312a, sealing section; 2-32, plug; 2-321, intake hole; 2-33, first elastic member; 2-34, air stopping block; 2-341, annular sealing protrusion; 2-4, joint assembly; 2-41, die-cast joint; 2-411, mounting passage; 2-411a, third limiting step; 2-412, limiting ring groove; 2-413, intake interface; 2-42, first sealing ring; 2-43, pin; 2-200, adjuster; 2-210, intake joint; 2-220, anti-loosening indentation; 2-300, safety valve; 2-310, valve body; 2-320, control valve rod; 2-330, valve nozzle;

[0048] 3-1. Furnace body; 3-11. Installation groove; 3-2. Ignition assembly; 3-21. Electrode rod; 3-22. Thermocouple; 3-23. Gas collecting hood; 3-3. Valve body mounting plate; 3-4. Control knob; 3-5. Valve rod mounting plate; 3-6. Enclosure; 3-61. Accommodation cavity; 3-7. Arc support column; 3-8. Tabletop assembly; 3-81. Table board; 3-811. Through hole; 3-82. Table cover; 3-9. Second connecting plate.

[0049] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0050] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

[0051] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0052] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0053] The present utility model proposes a gas furnace 1000.

[0054] Please refer to Figures 1 to 10, in an embodiment of the present utility model, the gas furnace 1000 includes a furnace body 3-1, a flat stamping burner 1-100, a gas combination valve 2-100, and an ignition assembly 3-2. The furnace body 3-1 is provided with an installation groove 3-11. The flat stamping burner 1-100 includes a body 1-1 and an ejector tube 1-2. The body 1-1 is disposed in the installation groove 3-11, and the ejector tube 1-2 passes through the bottom wall of the installation groove 3-11. The body 1-1 includes an arc-shaped ring cover 1-11 and a bottom ring plate 1-12. The arc-shaped ring cover 1-11 and the bottom ring plate 1-12 are connected and enclosed to form a mixing chamber 1-13. On the side of the arc-shaped ring cover 1-11 facing away from the bottom ring plate 1-12, an inner arc surface section 1-111 and an outer arc surface section 1-112 are formed. The inner arc surface section 1-111 is arranged to be inclined and expand outward from bottom to top. A plurality of flame holes 1-111a are formed along the circumferential direction of the arc-shaped ring cover 1-11 on the inner arc surface section 1-111. The ejector tube 1-2 passes through the bottom ring plate 1-12 and communicates with the mixing chamber 1-13. An air inlet 1-21 is formed at one end of the ejector tube 1-2 away from the bottom ring plate 1-12. The gas combination valve 2-100 is disposed on the furnace body 3-1. The gas combination valve 2-100 is connected to the ejector tube 1-2 and is used to supply gas to the flat stamping burner 1-100. The ignition assembly 3-2 includes an electrode rod 3-21, a thermocouple 3-22, and a gas collecting hood 3-23. The electrode rod 3-21 and the thermocouple 3-22 are spaced apart and pass through the bottom wall of the installation groove 3-11 and are arranged close to the flame holes 1-111a. The gas collecting hood 3-23 covers the electrode rod 3-21 and the thermocouple 3-22 and is disposed on the bottom wall of the installation groove 3-11.

[0055] In the technical solution of the present utility model, a gas cylinder is connected to the gas combination valve 2-100 to supply fuel to the flat stamping burner 1-100. The fuel enters the mixing chamber 1-13 through the ejector tube 1-2, and air enters the mixing chamber 1-13 through the air inlet 1-21 of the ejector tube 1-2. The air and fuel are fully mixed in the mixing chamber 1-13. The electrode rod 3-21 generates an arc or an electric spark to ignite the fuel. The thermocouple 3-22 is used to monitor whether the flame of the gas furnace 1000 is ignited or continuously burning. If no flame is detected or the flame goes out, the gas combination valve 2-100 will stop the supply of fuel to ensure safety. The gas collecting hood 3-23 is used to guide and concentrate the mixture of fuel and air, protect the flame from the influence of external wind, and ensure the stability of the flame and the combustion efficiency. Since a plurality of the flame holes 1-111a are all arranged in the central direction of the arc-shaped ring cover 1-11, the fuel is sprayed centrally, so that the fuel burns centrally, and the flame gathers towards the center through the plurality of flame holes 1-111a to form a compact flame, thereby improving the stability and concentration of the flame of the gas furnace 1000.

[0056] To enhance the sealing and stability of the overall structure of the burner, please refer to Figure 4 and Figure 5 In an embodiment of the present utility model, connecting ring edges 1-113 are formed on both the inner and outer ring walls of the arc-shaped ring cover 1-11, and connecting folding edges 1-121 are formed on both the inner and outer ring walls of the bottom ring plate 1-12. The connecting folding edge 1-121 and the bottom ring plate 1-12 enclose a limiting groove 1-122, and the connecting ring edge 1-113 is accommodated in the limiting groove 1-122; the connecting folding edge 1-121 and the connecting ring edge 1-113 are connected by a press riveting process; an arc-shaped convex cover 1-114 is formed in the middle of the arc-shaped ring cover 1-11, and a first connecting plate 1-123 is formed in the middle of the bottom ring plate 1-12. The first connecting plate 1-123 is arranged corresponding to the arc-shaped convex cover 1-114 and is connected with the arc-shaped convex cover 1-114 to enclose a cavity 1-124, and the cavity 1-124 communicates with the mixing chamber 1-13. Press riveting can ensure the sealing between the arc-shaped ring cover 1-11 and the bottom ring plate 1-12 through pressing and deformation. This tight connection can effectively prevent fuel leakage. Press riveting can form a firm mechanical connection between the arc-shaped ring cover 1-11 and the bottom ring plate 1-12, increasing the tensile strength and torsional strength of the connection. Compared with traditional welding or bolt connection, press riveting can simplify the assembly process, reduce the required tools and time, and does not require special treatment of the surface of the connecting components. Press riveting connection is usually more compact than traditional bolt connection, which can save space and reduce the weight of the overall structure; the arc-shaped convex cover 1-114 and the first connecting plate 1-123 provide necessary support for the arc-shaped ring cover 1-11 and the bottom ring plate 1-12, increasing the strength of the overall structure of the burner and enabling the arc-shaped ring cover 1-11 and the bottom ring plate 1-12 to maintain a stable position and correct alignment with each other when connected, which is very important for ensuring the stability of the internal air flow and flame shape of the burner; and the cavity 1-124 and the mixing chamber 1-13 communicate with each other, enabling fuel and air to quickly and evenly enter the mixing chamber 1-13 for combustion and continuous feeding, thereby improving the stability of the flame.

[0057] Please refer to Figure 6, in an embodiment of the present utility model, a sealing protrusion 1-22 is formed at one end of the ejector tube 1-2 close to the bottom ring plate 1-12. The bottom ring plate 1-12 is provided with a mounting hole 1-125. A part of the structure of the ejector tube 1-2 extends into the mounting hole 1-125, and the sealing protrusion 1-22 abuts against the edge of the mounting hole 1-125; the flat stamping burner 1-100 includes a fixing plate 1-3. The fixing plate 1-3 is connected to the side of the bottom ring plate 1-12 facing away from the arc-shaped ring cover 1-11. The fixing plate 1-3 is arranged on the bottom wall of the mounting groove 3-11. A thermocouple fixing hole 1-31 and an electrode rod fixing hole 1-32 are formed in the fixing plate 1-3 near the flame hole 1-111a. The electrode rod 3-21 passes through the electrode rod fixing hole 1-32 of the fixing plate 1-3, and the thermocouple 3-22 passes through the thermocouple fixing hole 1-31 of the fixing plate 1-3. The sealing protrusion 1-22 can increase the contact area between the mounting hole 1-125 and the ejector tube 1-2, and the sealing protrusion 1-22 is in close contact with the edge of the mounting hole 1-125, thereby effectively preventing the gas leakage inside the mixing chamber 1-13; the sealing protrusion 1-22 can provide additional friction and locking effect to prevent the ejector tube 1-2 from loosening or shifting due to vibration or temperature change between the burner body 1-1; the sealing protrusion 1-22 can also enhance the structural strength between the ejector tube 1-2 and the bottom ring plate 1-12 to a certain extent. Especially for burners with large forces or long-term operation, it can effectively reduce the risk of damage caused by fatigue or material deformation; the burner body 1-1 can be fixed to the bottom wall of the mounting groove 3-11 by screwing through the fixing plate 1-3, thereby improving the convenience of burner installation; the thermocouple fixing hole 1-31 is used to install the thermocouple 3-22 to monitor the temperature inside the burner in real time. By accurately measuring the working temperature of the burner, the combustion process can be effectively controlled, and the combustion efficiency and stability can be improved; the electrode rod fixing hole 1-32 is used to install the ignition electrode rod 3-21, which is crucial for the ignition and combustion process of the burner. The electrode rod 3-21 generates sparks or arcs during ignition to ignite the fuel, ensuring the reliable start and continuous operation of the burner; installing the thermocouple 3-22 and the electrode rod 3-21 on the fixing plate 1-3 near the flame hole 1-111a makes them easy to access and maintain, and can reduce the cost and time for maintaining and replacing the electrode rod 3-21.

[0058] To improve the safety performance of the gas combination valve 2-100, please refer to Figures 7 to 9, in an embodiment of the present utility model, the gas combination valve 2-100 includes a regulator 2-200, a safety valve 2-300, a tee fitting 2-1, two check valve members 2-2, and a check assembly 2-3. The safety valve 2-300 is connected to the regulator 2-200; the tee fitting 2-1 has two intake pipes 2-11 and an outlet pipe 2-12, and the outlet pipe 2-12 is connected to the regulator 2-200; each check valve member 2-2 is connected to one of the intake pipes 2-11, and each check valve member 2-2 is connected to a gas cylinder and cooperates with the gas cylinder to supply gas to the intake pipe 2-11; the check assembly 2-3 includes two movable seals 2-31 and two plugs 2-32. Each plug 2-32 is connected to the inner peripheral wall of one of the intake pipes 2-11. Each plug 2-32 is provided with an intake hole 2-321, and the intake hole 2-321 communicates with the intake pipe 2-11. The movable seal 2-31 is movably disposed at one end of the plug 2-32 away from the check valve member 2-2 along the extending direction of the intake pipe 2-11. One end of the movable seal 2-31 away from the plug 2-32 is elastically connected to the wall surface of the intake pipe 2-11 and can move closer to or away from the plug 2-32 to close or communicate the intake pipe 2-11 with the outlet pipe 2-12. When the gas cylinders are connected to the two check valve members 2-2, the gas in the gas cylinders flows into the intake pipes 2-11. The gas flows through the intake holes 2-321. Under the airflow pressure, the movable seal 2-31 moves away from the plug 2-32, so that the intake pipe 2-11 communicates with the outlet pipe 2-12. Then, the gas in the gas cylinders can enter the outlet pipe 2-12 through the intake pipes 2-11 and flow out from the outlet pipe 2-12; when the gas in one of the gas cylinders is used up, the movable seal 2-31 is not pushed by the airflow pressure. Under the action of the elastic restoring force, the movable seal 2-31 moves closer to the plug 2-32, so that the intake pipe 2-11 is closed with the outlet pipe 2-12; this structural setting can realize the independent control of the gas supply of the two gas cylinders, can more effectively prevent the gas leakage in the intake pipe 2-11, and cooperate with the check valve member 2-2 to achieve double protection, improving the safety performance of the gas combination valve 2-100.

[0059] To further improve the sealing performance of the check assembly 2-3, please refer to Figure 8 and Figure 9, in an embodiment of the present utility model, the check assembly 2-3 includes two first elastic members 2-33. A first limiting step 2-111 is provided on the peripheral wall surface of each intake duct 2-11. A second limiting step 2-311 is provided at one end of each movable seal 2-31 away from the plug 2-32. Each first elastic member 2-33 is located between a first limiting step 2-111 and a second limiting step 2-311. A sealing column 2-312 is formed at one end of each movable seal 2-31 close to the plug 2-32. Each sealing column 2-312 can open or close an intake hole 2-321. A sealing section 2-312a is formed at one end of each sealing column 2-312 away from the movable seal 2-31. The cross-sectional area of the sealing section 2-312a gradually decreases from the end close to the movable seal 2-31 to the end away from the movable seal 2-31. The check assembly 2-3 includes two air-blocking blocks 2-34. Each air-blocking block 2-34 is sleeved on a sealing column 2-312. The sealing section 2-312a is exposed outside the air-blocking block 2-34. An annular sealing protrusion 2-341 is formed on one side of each air-blocking block 2-34 facing away from the movable seal 2-31. Each annular sealing protrusion 2-341 can abut against the side wall of a plug 2-32 and is arranged around the edge of the intake hole 2-321.When the gas cylinder is connected to the two one-way valve members 2-2, the gas in the gas cylinder flows into the intake pipe 2-11. The gas flows and passes through the intake hole 2-321. Under the air flow pressure, the movable seal member 2-31 moves away from the plug 2-32, the first elastic member 2-33 is compressed, and the sealing column 2-312 is disengaged from the intake hole 2-321, so that the intake pipe 2-11 is communicated with the outlet pipe 2-12. Then, the gas in the gas cylinder can enter the outlet pipe 2-12 through the intake pipe 2-11 and flow out from the outlet pipe 2-12. When the gas in one of the gas cylinders is used up, the movable seal member 2-31 has no air flow pressure to push it. Under the action of the elastic restoring force of the first elastic member 2-33, the movable seal member 2-31 moves close to the plug 2-32, and the sealing column 2-312 is inserted into the intake hole 2-321, so that the intake pipe 2-11 and the outlet pipe 2-12 are closed, effectively preventing the gas in the intake pipe 2-11 from leaking or flowing back into the low-pressure gas cylinder, and improving the safe use performance of the combined valve. The gradually decreasing cross-section can ensure that the sealing section 2-312a contacts the intake hole 2-321 more closely, thereby improving the sealing performance to reduce or eliminate leakage points and ensure the reliability of the seal. The gradually decreasing cross-section of the sealing section 2-312a can make the sealing end more smoothly inserted into the intake hole 2-321, which is easy to guide and position, and can more accurately align the position of the intake hole 2-321 during the mating movement. When the movable seal member 2-31 moves close to the plug 2-32 under the action of the elastic restoring force to close the intake pipe 2-11 and the outlet pipe 2-12, the annular sealing protrusion 2-341 of the gas stop block 2-34 can surround the outer periphery of the intake hole 2-321, avoiding the gas in the intake pipe 2-11 from leaking to the external environment through the intake hole 2-321, and further improving the sealing effect of the check assembly 2-3.

[0060] For easy connection and disconnection of the gas cylinder, please refer to Figure 8 and Figure 9, in an embodiment of the present utility model, the gas combination valve 2-100 includes a joint assembly 2-4. The joint assembly 2-4 includes two die-cast joints 2-41. The two die-cast joints 2-41 are respectively connected to two intake pipes 2-11 of the tee pipe fitting 2-1. The die-cast joint 2-41 is provided with an installation channel 2-411, and the installation channel 2-411 is communicated with the intake pipe 2-11. Each one-way valve member 2-2 is connected to the installation channel 2-411 of a die-cast joint 2-41; the joint assembly 2-4 includes a plurality of first sealing rings 2-42 and two pins 2-43. The plurality of first sealing rings 2-42 are sleeved on one end of the die-cast joint 2-41 close to the intake pipe 2-11 and are in contact with the inner peripheral wall of the intake pipe 2-11; a limiting ring groove 2-412 is provided at one end of each die-cast joint 2-41 close to the intake pipe 2-11. The two pins 2-43 are inserted through the intake pipe 2-11 at intervals and are in contact with the groove wall of the limiting ring groove 2-412 to limit the movement of the die-cast joint 2-41 along the axial direction of the intake pipe 2-11. By using the die-cast joint 2-41 and the installation channel 2-411, it is easier to install and connect the one-way valve member 2-2, ensuring that the valve member is safely and reliably installed on the intake pipe 2-11; the one-way valve member 2-2 prevents the backflow of gas, ensuring the normal operation of the combination valve and avoiding dangerous situations; by using the die-cast joint 2-41 and the reasonably designed installation channel 2-411, the performance of the overall structure can be optimized, improving safety and reliability; the plurality of first sealing rings 2-42 are used to improve the connection sealing performance between the die-cast joint 2-41 and the intake pipe 2-11, ensuring that gas will not leak when entering the combination valve, effectively preventing gas from leaking out through the gap between the die-cast joint 2-41 and the intake pipe 2-11, and improving the safety performance of the combination valve; when connecting or disconnecting the gas cylinder, the die-cast joint 2-41 can rotate, so as to facilitate the user to operate at a suitable position, and the setting of the limiting ring groove 2-412 and the pin 2-43 can limit the movement of the die-cast joint 2-41 along the axial direction of the intake pipe 2-11, avoiding the separation of the die-cast joint 2-41 from the intake pipe 2-11 when rotating the die-cast joint 2-41. The simultaneous setting of the first sealing ring 2-42, the limiting ring groove 2-412 and the pin 2-43 enables the die-cast joint 2-41 to rotate relative to the intake pipe 2-11 while improving the sealing performance of their connection.

[0061] Please refer to Figure 8 and Figure 9, in an embodiment of the present utility model, the one-way valve member 2-2 includes a thimble 2-21, a floating rod 2-22 and a second sealing ring 2-23. The thimble 2-21 is threadedly connected to the installation channel 2-411. An air inlet channel 2-211 is formed in the thimble 2-21, and the air inlet channel 2-211 communicates with the installation channel 2-411. The floating rod 2-22 is in clearance fit with the air inlet channel 2-211 and is elastically connected to the wall surface of the installation channel 2-411. A limit ring block 2-221 and an air blocking block 2-222 are provided on the floating rod 2-22. The second sealing ring 2-23 is sleeved on the floating rod 2-22 and is located between the limit ring block 2-221 and the air blocking block 2-222. The floating rod 2-22 can move closer to or away from the die-casting joint 2-41 to close or open the air inlet channel 2-211 and the installation channel 2-411; the one-way valve member 2-2 includes a gasket 2-24 and a second elastic member 2-25. A limit block 2-212 is provided on the thimble 2-21. An air inlet interface 2-413 is formed at one end of the die-casting joint 2-41 away from the air inlet pipe 2-11. The gasket 2-24 is arranged between the limit block 2-212 and the bottom wall of the air inlet interface 2-413; a third limit step 2-411a is formed on the peripheral wall surface of the installation channel 2-411. The second elastic member 2-25 is sleeved on the floating rod 2-22 and is located between the third limit step 2-411a and the limit ring block 2-221; the cross-sectional area of the air blocking block 2-222 gradually decreases from the end close to the second sealing ring 2-23 to the end away from the second sealing ring 2-23. The gasket 2-24 is provided to enhance the sealing performance between the thimble 2-21 and the installation channel 2-411; when the one-way valve member 2-2 is connected to the gas cylinder, the gas in the gas cylinder flows into the air inlet channel 2-211 and pushes the floating rod 2-22 to drive the second sealing ring 2-23 to move upward, so that the gas can enter the air inlet channel 2-211 and flow to the air inlet pipe 2-11 and the air outlet pipe 2-12. When the one-way valve member 2-2 is not connected to the gas cylinder, the floating rod 2-22 moves downward under the action of the elastic restoring force of the second elastic member 2-25 and drives the second sealing ring 2-23 to seal the air inlet channel 2-211, avoiding the leakage of the gas in the air inlet pipe 2-11; the gradually decreasing cross-sectional area of the air blocking block 2-222 can ensure that the air blocking block 2-222 contacts the air inlet channel 2-211 more closely, thereby improving the sealing performance to reduce or eliminate the leakage points and ensure the reliability of the seal.

[0062] Please refer to Figure 7, in an embodiment of the present utility model, an air outlet joint 2-121 is provided on the air outlet pipe 2-12. An air inlet joint 2-210 is provided on the regulator 2-200. The air inlet joint 2-210 is sleeved on the air outlet joint 2-121 and is threadedly connected to the air outlet joint 2-121. Two anti-loosening concave points 2-220 are provided at intervals on the outer peripheral wall of the air inlet joint 2-210. In threaded connection, the existence of the anti-loosening concave points 2-220 can effectively prevent the joint from loosening by itself due to vibration or external force; the anti-loosening concave points 2-220 are designed to form an additional resistance between the two joints, making the thread not easy to loosen during normal operation; the existence of the anti-loosening concave points 2-220 also helps to ensure that the threaded connection always remains in a tightened state, reducing the risk of gas leakage; by reducing the wear caused by the loosening of the thread, the anti-loosening concave points 2-220 can extend the service life of the joint and the pipe.

[0063] Please refer to Figure 2 and Figure 7 , in an embodiment of the present utility model, the safety valve 2-300 includes a valve body 2-310, a control valve rod 2-320, and a valve nozzle 2-330. The valve body 2-310 is respectively connected to the regulator 2-200, the control valve rod 2-320, and the valve nozzle 2-330. The control valve rod 2-320 is used to control the gas to spray out from the valve nozzle 2-330. The valve nozzle 2-330 is connected to the ejector pipe 1-2; the gas stove 1000 includes a valve body mounting plate 3-3, a control knob 3-4, and a valve rod mounting plate 3-5. The valve body mounting plate 3-3 is provided on the stove body 3-1. The tee pipe fitting 2-1 is connected to the valve body mounting plate 3-3. The valve rod mounting plate 3-5 is connected to the valve body mounting plate 3-3. The control valve rod 2-320 passes through the valve rod mounting plate 3-5. The control knob 3-4 is connected to the control valve rod 2-320. The valve body mounting plate 3-3 and the valve rod mounting plate 3-5 are provided to facilitate the installation of the valve body 2-310 and the control valve rod 2-320. The control knob 3-4 is provided for the user to operate the control valve rod 2-320; the user can operate the control valve rod 2-320 to control the gas to spray out from the valve nozzle 2-330 for use. By adjusting the position of the control valve rod 2-320, the opening and closing of the valve nozzle 2-330 can be precisely adjusted, thereby controlling the released gas flow rate and ensuring that the pressure can be effectively released when needed.

[0064] To improve the operation convenience of the gas stove 1000, please refer to Figure 1 and Figure 2, in an embodiment of the present utility model, the gas stove 1000 includes a plurality of enclosing plates 3-6 and a plurality of arc-shaped support columns 3-7. The plurality of arc-shaped support columns 3-7 are spaced apart and provided on the furnace body 3-1. Each enclosing plate 3-6 is connected to one arc-shaped support column 3-7. The plurality of enclosing plates 3-6 enclose to form an accommodation cavity 3-61 for accommodating the gas combination valve 2-100. One of the enclosing plates 3-6 is rotatably connected to another enclosing plate 3-6 to open or close the accommodation cavity 3-61. The arc-shaped support columns 3-7 can increase the support stability of the gas stove 1000. The enclosing plates 3-6 can effectively isolate the gas combination valve 2-100 from the surrounding environment, prevent external objects from accidentally touching or interfering with the normal operation of the gas combination valve 2-100, and improve the safety performance of the gas stove. Moreover, when replacing or disassembling the gas cylinder, one of the enclosing plates 3-6 can be rotated to open the accommodation cavity 3-61, which is convenient for users to use and improves the operation convenience.

[0065] Please refer to Figure 1 and Figure 2 , in an embodiment of the present utility model, the gas stove 1000 includes a tabletop assembly 3-8 and a plurality of second connecting plates 3-9. The plurality of second connecting plates 3-9 are spaced apart and provided on the furnace body 3-1. Each arc-shaped support column 3-7 is connected to one side of a second connecting plate 3-9 facing the enclosing plate 3-6. The tabletop assembly 3-8 includes a table board 3-81 and a table cover 3-82. The table board 3-81 is connected to the sides of the plurality of second connecting plates 3-9 facing away from the enclosing plate 3-6. The table board 3-81 is provided with a through hole 3-811, and the through hole 3-811 is communicated with the installation groove 3-11. The table cover 3-82 is covered on the table board 3-81 to open or close the through hole 3-811. When using the gas stove 1000, the table cover 3-82 can be opened to open the through hole 3-811, and the device to be heated can be placed on the table board 3-81 or directly used for heating. When the gas stove 1000 is not needed, the table cover 3-82 is covered on the table board 3-81 to close the through hole 3-811 for storage.

[0066] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A gas stove, characterized in that, Comprising: A furnace body, which is provided with a mounting groove; A flat stamping burner, which includes a main body and an ejector tube. The main body is disposed in the mounting groove, and the ejector tube penetrates through the bottom wall of the mounting groove. The main body includes an arc-shaped ring cover and a bottom ring plate. The arc-shaped ring cover and the bottom ring plate are connected and enclosed to form a mixing chamber. An inner arc surface section and an outer arc surface section are formed on the side of the arc-shaped ring cover facing away from the bottom ring plate. The inner arc surface section is inclined to expand outward from bottom to top, and a plurality of flame holes are provided along the circumferential direction of the arc-shaped ring cover on the inner arc surface section; the ejector tube penetrates through the bottom ring plate and communicates with the mixing chamber, and an air inlet is provided at one end of the ejector tube away from the bottom ring plate; A gas combination valve, which is disposed on the furnace body, is connected to the ejector tube, and is used to supply gas to the flat stamping burner; and An ignition assembly, which includes an electrode rod, a thermocouple, and a gas collecting hood. The electrode rod and the thermocouple are spaced apart and penetrate through the bottom wall of the mounting groove and are arranged close to the flame holes. The gas collecting hood covers the electrode rod and the thermocouple and is disposed on the bottom wall of the mounting groove.

2. The gas stove according to claim 1, characterized in that, Connecting ring edges are formed on both the inner ring wall and the outer ring wall of the arc-shaped ring cover, and connecting folding edges are formed on both the inner ring wall and the outer ring wall of the bottom ring plate. The connecting folding edges and the bottom ring plate enclose a limiting groove, and the connecting ring edges are accommodated in the limiting groove; the connecting folding edges and the connecting ring edges are connected by a riveting process; and / or, An arc-shaped convex cover is formed in the middle of the arc-shaped ring cover, and a first connecting plate is formed in the middle of the bottom ring plate. The first connecting plate is arranged corresponding to the arc-shaped convex cover and is connected with the arc-shaped convex cover to enclose a cavity, and the cavity communicates with the mixing chamber.

3. The gas stove according to claim 1, characterized in that, A sealing protrusion is formed at one end of the ejector tube close to the bottom ring plate. The bottom ring plate is provided with a mounting hole, and a part of the structure of the ejector tube extends into the mounting hole, and the sealing protrusion abuts against the edge of the mounting hole; and / or, The flat stamping burner includes a fixing plate, which is connected to the side of the bottom ring plate facing away from the arc-shaped ring cover. The fixing plate is disposed on the bottom wall of the mounting groove. Thermocouple fixing holes and electrode rod fixing holes are provided at the fixing plate close to the flame holes. The electrode rod penetrates through the electrode rod fixing hole of the fixing plate, and the thermocouple penetrates through the thermocouple fixing hole of the fixing plate.

4. The gas stove according to claim 1, wherein, The gas combination valve includes; A regulator; A safety valve, which is connected to the regulator; A tee pipe fitting, which has two inlet pipes and one outlet pipe. The outlet pipe is connected to the regulator; Two one-way valve members, each of the one-way valve members is connected to one of the inlet pipes, each of the one-way valve members is connected to a gas cylinder, and cooperates with the gas cylinder to supply gas to the inlet pipe; and Check valve assembly, the check valve assembly includes two movable seals and two plugs. Each plug is connected to the inner peripheral wall of an intake pipe. Each plug is provided with an intake hole, and the intake hole communicates with the intake pipe. The movable seal is movably arranged at one end of the plug away from the one-way valve member along the extending direction of the intake pipe. One end of the movable seal away from the plug is elastically connected to the wall surface of the intake pipe and can move closer to or away from the plug, so as to close or communicate the intake pipe with the outlet pipe.

5. The gas stove according to claim 4, wherein, The check valve assembly includes two first elastic members. Each peripheral wall surface of the intake pipe is provided with a first limiting step. One end of each movable seal away from the plug is provided with a second limiting step. Each first elastic member is located between a first limiting step and a second limiting step. One end of each movable seal close to the plug forms a sealing column, and each sealing column can open or close an intake hole; One end of each sealing column away from the movable seal forms a sealing section, and the cross-sectional area of the sealing section gradually decreases from the end close to the movable seal to the end away from the movable seal; The check valve assembly includes two air stop blocks. Each air stop block is sleeved on a sealing column, and the sealing section is exposed outside the air stop block. One side of each air stop block facing away from the movable seal forms an annular sealing protrusion, and each annular sealing protrusion can abut against the side wall of a plug and is arranged around the orifice edge of the intake hole.

6. The gas stove according to claim 4, characterized in that, The safety valve includes a valve body, a control valve rod and a valve nozzle. The valve body is respectively connected to the regulator, the control valve rod and the valve nozzle. The control valve rod is used to control the gas to spray out from the valve nozzle, and the valve nozzle is connected to the ejector pipe; The gas stove includes a valve body mounting plate, a control knob and a valve rod mounting plate. The valve body mounting plate is arranged on the stove body. The tee pipe fitting is connected to the valve body mounting plate. The valve rod mounting plate is connected to the valve body mounting plate. The control valve rod passes through the valve rod mounting plate, and the control knob is connected to the control valve rod.

7. The gas stove according to claim 4, characterized in that, The gas combination valve includes a joint assembly. The joint assembly includes two die-cast joints. The two die-cast joints are respectively connected to the two intake pipes of the tee pipe fitting. The die-cast joint is provided with an installation channel, and the installation channel communicates with the intake pipe. Each one-way valve member is connected to the installation channel of a die-cast joint; The joint assembly includes a plurality of first sealing rings and two pins. The plurality of first sealing rings are sleeved on one end of the die-cast joint close to the intake pipe and abut against the inner peripheral wall of the intake pipe; One end of each die-cast joint close to the intake pipe is provided with a limiting ring groove, and the two pins are spaced apart and pass through the intake pipe and abut against the groove wall of the limiting ring groove to limit the die-cast joint from moving along the axial direction of the intake pipe.

8. The gas stove according to claim 7, characterized in that, The one-way valve member includes a thimble, a floating rod, and a second sealing ring. The thimble is threadedly connected to the installation channel. An air inlet channel is formed in the thimble, and the air inlet channel communicates with the installation channel. The floating rod is in clearance fit with the air inlet channel and is elastically connected to the wall surface of the installation channel. A limiting ring block and an air blocking block are provided on the floating rod. The second sealing ring is sleeved on the floating rod and is located between the limiting ring block and the air blocking block. The floating rod can move closer to or away from the die-casting joint to close or open the air inlet channel and the installation channel; The one-way valve member includes a gasket and a second elastic member. A limiting block is provided on the thimble. An air inlet interface is formed at one end of the die-casting joint away from the air inlet pipe. The gasket is provided between the limiting block and the bottom wall of the air inlet interface; A third limiting step is formed on the peripheral wall surface of the installation channel. The second elastic member is sleeved on the floating rod and is located between the third limiting step and the limiting ring block; The cross-sectional area of the air blocking block gradually decreases from the end close to the second sealing ring to the end far from the second sealing ring.

9. The gas stove according to any one of claims 1 to 8, characterized in that, The gas stove includes a plurality of enclosing plates and a plurality of arc-shaped support columns. The plurality of arc-shaped support columns are spaced apart on the furnace body. Each enclosing plate is connected to one of the arc-shaped support columns. The plurality of enclosing plates enclose to form a receiving cavity for receiving the gas combination valve; One of the enclosing plates is rotatably connected to another enclosing plate to open or close the receiving cavity.

10. The gas stove according to claim 9, characterized in that, The gas stove includes a tabletop assembly and a plurality of second connecting plates. The plurality of second connecting plates are spaced apart on the furnace body. Each arc-shaped support column is connected to one side of the second connecting plate facing the enclosing plate; The tabletop assembly includes a table board and a table cover. The table board is connected to the sides of the plurality of second connecting plates facing away from the enclosing plate. A through hole is formed in the table board, and the through hole communicates with the installation groove. The table cover covers the table board to open or close the through hole.

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