Novel combustion furnace

Abstract

The utility model belongs to the technical field of combustion furnaces, and particularly relates to a novel combustion furnace which comprises a furnace body, a furnace end arranged on the furnace body and a plurality of supporting arms arranged on the periphery of the furnace end, an ignition device is arranged on the furnace body and comprises a piezoelectric igniter, a metal cap and an ignition head are arranged on the piezoelectric igniter, and the metal cap is connected with the ignition head. The furnace end is made of metal materials, the metal cap abuts against the furnace end, an air outlet is formed in the upper end of the furnace end, and the ignition head extends to the position above the furnace end.

Description

Technical Field

[0001] The utility model belongs to the technical field of combustion furnaces, and particularly relates to a novel combustion furnace. Background Art

[0002] A combustion furnace, also known as a gas stove, liquefied petroleum gas stove, coal gas stove, or natural gas stove, refers to a kitchen appliance that directly heats with gaseous fuels such as liquefied petroleum gas (liquid), artificial coal gas, and natural gas.

[0003] Most traditional combustion furnaces generally include a furnace body, on which a burner head is fixedly installed. Gas is transported to the burner head through a pipeline, and the gas output from the burner head is ignited by an ignition device on the furnace body. For example, the burner and stove disclosed in Chinese Utility Model Patent CN202321068483.X include a main body, an outer ring fire cover, an inner ring fire cover, and an ignition device. The ignition device is connected to the main body, the inner ring fire cover and the outer ring fire cover are both arranged on the main body, and the outer ring fire cover surrounds the inner ring fire cover. A fire transfer groove with an opening facing the main body is formed on the outer ring fire cover. The fire transfer groove has a groove top wall opposite to the opening, and the groove top wall shields above the ignition device.

[0004] It can be seen from the specification drawings that an external power supply is connected to the ignition device in the above structure. The ignition device generates a tip discharge to ignite the gas. However, the generation of the arc during the ignition process is irregular, and other metal objects such as cookware are likely to cause the arc to move away from the burner head, affecting the ignition of the burner by the ignition device. Summary of the Invention

[0005] In order to overcome the defects in the prior art, the purpose of the utility model is to provide a novel combustion furnace that is convenient for ignition and convenient for assembly and production.

[0006] The purpose of the utility model is achieved as follows:

[0007] A novel combustion furnace includes a furnace body, on which a burner head and several support arms arranged on the outer periphery of the burner head are provided. A sparking device is arranged on the furnace body. The sparking device includes a piezoelectric igniter, on which a metal cap and an ignition head are provided. The burner head is made of a metal material, the metal cap is pressed tightly against the burner head, an air outlet is arranged at the upper end of the burner head, and the ignition head extends above the burner head.

[0008] The utility model is further arranged as follows: The piezoelectric igniter includes an igniter main body. The ignition head includes a high-voltage lead wire and a discharge needle that are detachably connected. The high-voltage lead wire is fixedly arranged on the igniter main body, the discharge needle is detachably arranged on the furnace body, and the end of the discharge needle extends above the burner head.

[0009] The utility model is further arranged as follows: An insulating seat is sleeved on the discharge needle. The insulating seat is fixedly arranged on the furnace body, and a guiding groove extending towards the burner head is arranged on the insulating seat.

[0010] The utility model is further arranged such that: a sleeve is provided on the high-voltage lead wire, one end of the discharge needle extends into the furnace body and penetrates into the sleeve, the high-voltage lead wire and / or the discharge needle are detachably connected to the sleeve, and the igniter is electrically connected to the discharge needle through the high-voltage lead wire.

[0011] The utility model is further arranged such that: the sleeve is a flexible insulating sleeve, and the sleeve is tightly fitted with the high-voltage lead wire and the discharge needle respectively. The high-voltage lead wire and the discharge needle are in contact with each other, or a discharge gap is provided between the high-voltage lead wire and the discharge needle.

[0012] The utility model is further arranged such that: the burner head is arranged in the middle of the furnace body, a control switch is arranged at one end of the piezoelectric igniter away from the burner head, and a control rod is movably arranged on the furnace body; during the process that the control rod drives the control switch to move, the control rod abuts against the control switch and drives the metal cap to tightly press against the burner head.

[0013] The utility model is further arranged such that: at least two groups of fixed hooks are provided on the furnace body, the fixed hooks are respectively arranged on both sides of the piezoelectric igniter to fix the piezoelectric igniter on the furnace body, and guide surfaces are provided on the fixed hooks. The piezoelectric igniter abuts against the guide surfaces to deform the fixed hooks, so that the fixed hooks cooperate with the piezoelectric igniter.

[0014] The utility model is further arranged such that: the control rod is rotatably arranged on the furnace body, and a limiting swing groove is provided on the furnace body. The control rod penetrates through the limiting swing groove, and the limiting swing groove limits the movement range of the control rod and makes the control rod always abut tightly against the control switch.

[0015] The utility model is further arranged such that: a storage cavity is provided at the upper end of the furnace body, a plurality of mounting seats are provided in the storage cavity, the mounting seats are arranged on the outer periphery of the burner head, a connecting seat is rotatably arranged on the mounting seat through a first hinge shaft, a support arm is rotatably arranged on the connecting seat through a second hinge shaft, a support convex edge is provided on the outer periphery of the storage cavity, and the support arm is turned outwards of the furnace body and abuts against the support convex edge; the support arm can be turned relatively along the second hinge shaft and turned towards the middle of the storage cavity, and the connecting seat can be turned relatively along the first hinge shaft to fold and store the support arm towards the bottom of the storage cavity.

[0016] The utility model is further arranged such that: a positioning groove is provided at the upper end of the support convex edge, the support arm turns into the positioning groove and is supported by the positioning groove, and the positioning groove restricts the relative swing of the support arm to both sides of the positioning groove.

[0017] The advantages of the utility model compared with the prior art are:

[0018] 1. In the present utility model, the metal burner head contacts the metal cap on the piezoelectric igniter, making the burner head negatively charged, thereby reducing the potential of the burner head. During use, the electric arc generated by the piezoelectric igniter will always form between the ignition head and the burner head, facilitating the piezoelectric igniter to ignite the combustion furnace, which is convenient to set up and use. Moreover, in this structure, the piezoelectric igniter is directly used to ignite the combustion furnace without connecting an external power supply, which is convenient for the assembly and production of the combustion furnace.

[0019] 2. In the present utility model, the detachable high-voltage lead wire and discharge needle facilitate the separate installation of the high-voltage lead wire and the discharge needle, facilitating the fixed installation of the piezoelectric igniter and the assembly and production of the combustion furnace. The setting of the insulating seat facilitates the fixed installation of the discharge needle, and the setting of the guide groove avoids the accidental deflection of the discharge needle during use.

[0020] 3. In the present utility model, the sleeve structure is simple, convenient for production and processing, and facilitates the connection and disassembly of the high-voltage lead wire and the discharge needle, and avoids the high-voltage lead wire from discharging to other objects. The setting of the flexible insulating sleeve facilitates the connection and disassembly of the high-voltage lead wire and the discharge needle, and is convenient for the assembly and production of the combustion furnace.

[0021] 4. In the present utility model, the control rod can not only control the discharge of the piezoelectric igniter, but also drive the metal cap to tightly press against the burner head, avoiding the separation of the metal cap from the furnace body during the ignition process of the combustion furnace, which is convenient for the user to control the ignition of the combustion furnace. The setting of the fixed hook and the guiding surface facilitates the quick installation of the piezoelectric igniter and the assembly and production of the combustion furnace. The setting of the limiting swing groove can not only limit the movement range of the control rod, but also avoid the relative movement of the piezoelectric igniter on the burner head.

[0022] 5. In the present utility model, through the sequentially rotatably connected mounting seat, connecting seat and support arm, the support arm can not only flip towards the middle of the furnace body, but also be stored towards the bottom of the support arm. The structure is simple, convenient for assembly and production, which is beneficial to reducing the volume of the combustion furnace after folding and convenient for the storage and transportation of the combustion furnace. The setting of the positioning groove facilitates avoiding the relative swing of the support arm to both sides of the positioning groove, which is beneficial to the stable installation of the support arm and avoids the deviation of the support arm during use from affecting the stable installation of the cookware on the combustion furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the structural schematic diagram of the present utility model;

[0024] Figure 2 is the structural schematic diagram of the present utility model when the support arm is stored in the storage cavity;

[0025] Figure 3 is the explosion schematic diagram of the present utility model;

[0026] Figure 4 is the cross-sectional view of the present utility model;

[0027] Figure 5 is a schematic view of the installation structure of the burner head and the ignition head on the furnace body in the present utility model;

[0028] Figure 6 is a schematic view of the installation structure of the piezoelectric igniter on the base in the present utility model;

[0029] Figure 7 is a schematic view of the structure of the base in the present utility model;

[0030] Figure 8 is Figure 7 a partial enlarged view of the A position in;

[0031] Figure 9 is a schematic view of the connection structure of the mounting seat, the connecting seat and the support arm in the present utility model;

[0032] Figure 10 is a schematic view of the structure of the support arm in the present utility model;

[0033] Figure 11 is a schematic view of the structure of the piezoelectric igniter in the present utility model.

[0034] The meanings of the reference numerals in the figure: 1 - furnace body; 11 - storage cavity; 12 - support flange; 13 - positioning groove; 14 - upper seat; 15 - limiting swing groove; 16 - fixing hook; 17 - guiding surface; 18 - hinge rod; 19 - base; 141 - bottom plate; 2 - support arm; 21 - second hinge shaft; 22 - hook portion; 23 - support portion; 24 - anti-slip groove; 25 - reinforcing rib; 3 - connecting seat; 31 - first hinge shaft; 32 - first connecting portion; 33 - second connecting portion; 4 - mounting seat; 41 - fixing portion; 42 - mounting portion; 5 - piezoelectric igniter; 51 - control switch; 52 - metal cap;

[0035] 53 - igniter main body; 54 - high - voltage lead; 55 - sleeve; 56 - insulating seat; 57 - discharge needle; 6 - control rod; 7 - burner head. Detailed implementation manners

[0036] The present utility model will be further described below in conjunction with the drawings and specific embodiments:

[0037] Refer to Figures 1 to 11As shown in the figure, a new type of combustion furnace includes a furnace body 1, a burner head 7 is arranged on the furnace body 1, and a number of support arms 2 are arranged on the outer periphery of the burner head 7. A firing device is arranged on the furnace body 1. The firing device includes a piezoelectric igniter 5. A metal cap 52 and an ignition head are arranged on the piezoelectric igniter 5. The burner head 7 is made of a metal material. The metal cap 52 abuts against the burner head 7. An air outlet is arranged at the upper end of the burner head 7. The ignition head extends above the burner head 7. In this structure, the burner head 7 is negatively charged by contacting the metal cap 52 on the piezoelectric igniter 5, thereby reducing the potential of the burner head 7. During the use process, the arc generated by the piezoelectric igniter 5 will always be formed between the ignition head and the burner head 7, which is convenient for the piezoelectric igniter 5 to ignite the combustion furnace, convenient for setting and use. And in this structure, the piezoelectric igniter 5 is directly used to ignite the combustion furnace without connecting an external power supply, which is convenient for the assembly and production of the combustion furnace.

[0038] In the present utility model, the burner head 7 is arranged in the middle of the furnace body 1. A control switch 51 is arranged at one end of the piezoelectric igniter 5 away from the burner head 7. A control rod 6 is movably arranged on the furnace body 1. During the process that the control rod 6 drives the control switch 51 to move, the control rod 6 abuts against the control switch 51 and drives the metal cap 52 to tightly abut against the burner head 7. In this structure, the control rod 6 can not only control the discharge of the piezoelectric igniter 5, but also drive the metal cap 52 to tightly abut against the burner head 7, avoiding the separation of the metal cap 52 from the furnace body 1 during the ignition process of the combustion furnace, and facilitating the user to control the ignition of the combustion furnace.

[0039] In this embodiment, at least two groups of fixed hooks 16 are arranged on the furnace body 1. The fixed hooks 16 are respectively arranged on both sides of the piezoelectric igniter 5 to fix the piezoelectric igniter 5 on the furnace body 1. And guide surfaces 17 are arranged on the fixed hooks 16. The piezoelectric igniter 5 abuts against the guide surfaces 17 to deform the fixed hooks 16, so that the fixed hooks 16 cooperate with the piezoelectric igniter 5. The arrangement of the fixed hooks 16 and the guide surfaces 17 facilitates the rapid installation of the piezoelectric igniter 5 and is convenient for the assembly and production of the combustion furnace.

[0040] Preferably, the control rod 6 is rotatably arranged on the furnace body 1 through a hinge rod 18. And a limit swing groove 15 is arranged on the furnace body 1. The control rod 6 is arranged in the limit swing groove 15. The limit swing groove 15 limits the movement range of the control rod 6 and makes the control rod 6 always abut against the control switch 51. The arrangement of the limit swing groove 15 can not only limit the movement range of the control rod 6, but also prevent the piezoelectric igniter 5 from moving relative to the burner head 7, which is convenient for the user to use.

[0041] The piezoelectric igniter 5 includes an igniter main body 53. The igniting head includes a high-voltage lead 54 and a discharge needle 57 which are detachably connected. The high-voltage lead 54 is fixedly arranged on the igniter main body 53, and the discharge needle 57 is detachably arranged on the furnace body 1, and the end of the discharge needle 57 extends upward above the furnace head 7. The detachably connected high-voltage lead 54 and discharge needle 57 facilitate the separate installation of the high-voltage lead 54 and the discharge needle 57, facilitate the fixed installation of the piezoelectric igniter 5, and are convenient for the assembly and production of the combustion furnace.

[0042] In the present utility model, the furnace body 1 includes an upper seat 14 and a base 19 which are detachably connected. The furnace head 7 is detachably arranged on the base 19. A receiving cavity 11 is arranged on the upper seat 14, and the furnace head 7 is arranged in the receiving cavity 11, and a bottom plate 141 is arranged at the bottom of the receiving cavity 11. During the assembly process of the combustion furnace, the discharge needle 57 can be first installed on the bottom plate 141, and the igniter main body 53 can be installed on the base 19, then the connection between the high-voltage lead 54 and the discharge needle 57 is controlled, and finally the connection between the upper seat 14 and the base 19 is controlled.

[0043] Preferably, an insulating seat 56 is sleeved on the discharge needle 57. The insulating seat 56 is fixedly arranged on the furnace body 1, and a guiding groove extending towards the furnace head 7 is arranged on the insulating seat 56. The arrangement of the insulating seat 56 facilitates the fixed installation of the discharge needle 57, and the arrangement of the guiding groove avoids the accidental deflection of the discharge needle 57 during use.

[0044] A sleeve 55 is arranged on the high-voltage lead 54. One end of the discharge needle 57 extends into the furnace body 1 and penetrates into the sleeve 55. The high-voltage lead 54 and / or the discharge needle 57 are detachably connected to the sleeve 55. The igniter is electrically connected through the high-voltage lead 54 and the discharge needle 57. The structure of the sleeve 55 is simple, convenient for production and processing, and facilitates the connection and disconnection between the high-voltage lead 54 and the discharge needle 57, and avoids the high-voltage lead 54 from discharging to other objects.

[0045] In the present utility model, the sleeve 55 is a flexible insulating sleeve, and the sleeve 55 is in a tight fit with the high-voltage lead 54 and the discharge needle 57 respectively. The high-voltage lead 54 and the discharge needle 57 are in contact with each other, or a discharge gap is arranged between the high-voltage lead 54 and the discharge needle 57. The arrangement of the flexible insulating sleeve facilitates the connection and disconnection between the high-voltage lead 54 and the discharge needle 57, and is convenient for the assembly and production of the combustion furnace.

[0046] A storage cavity 11 is provided at the upper end of the furnace body 1. A number of mounting seats 4 are arranged in the storage cavity 11. The mounting seats 4 are arranged on the outer periphery of the burner head 7. A connecting seat 3 is rotatably arranged on the mounting seat 4 through a first hinge shaft 31. The support arm 2 is rotatably arranged on the connecting seat 3 through a second hinge shaft 21. A support convex edge 12 is arranged on the outer periphery of the storage cavity 11. The support arm 2 is turned outwards of the furnace body 1 and abuts against the support convex edge 12. The support arm 2 can be relatively turned along the second hinge shaft 21 and turned towards the middle of the storage cavity 11. Moreover, the connecting seat 3 can be relatively turned along the first hinge shaft 31 and the support arm 2 can be folded and stored towards the bottom of the storage cavity 11. In this structure, through the sequentially rotatably connected mounting seat 4, connecting seat 3 and support arm 2, the support arm 2 can not only be turned towards the middle of the furnace body 1, but also be stored towards the bottom of the support arm 2. The structure is simple, convenient for assembly and production, is beneficial to reducing the volume of the combustion furnace after folding, and is convenient for the storage and transportation of the combustion furnace.

[0047] In the present utility model, a positioning groove 13 is provided at the upper end of the support convex edge 12. The support arm 2 is turned into the positioning groove 13 and supported by the positioning groove 13. Moreover, the positioning groove 13 restricts the relative swing of the support arm 2 towards both sides of the positioning groove 13. The setting of the positioning groove 13 is convenient for avoiding the relative swing of the support arm 2 towards both sides of the positioning groove 13, is beneficial to the stable installation of the support arm 2, and avoids the deviation of the support arm 2 during use from affecting the stable installation of the cooking utensil on the combustion furnace.

[0048] In this embodiment, the mounting seat 4 includes a fixing part 41 and a mounting part 42 arranged in an L shape. The fixing part 41 is mounted on the bottom plate 141. The connecting seat 3 includes a first connecting part 32 and a second connecting part 33 arranged in an L shape. The first connecting part 32 is rotatably arranged on the mounting part 42 through a first hinge shaft 31. The support arm 2 is rotatably arranged on the second connecting part 33 through a second hinge shaft 21.

[0049] Preferably, a hook part 22 adapted to the positioning groove 13 is provided on the support arm 2. The hook part 22 enters the positioning groove 13 as the support arm 2 is turned. Moreover, the hook part 22 passes through the positioning groove 13 and extends to the outside of the support convex edge 12. The setting of the hook part 22 is beneficial to the stable connection between the support arm 2 and the support convex edge 12, avoids the bending deformation of the support convex edge 12 caused by the excessive force on the support arm 2, and is beneficial to extending the service life of the combustion furnace.

[0050] A support part 23 extending transversely is provided on the support arm 2. The support part 23 extends towards both the inside and outside of the support convex edge 12. Moreover, an anti-slip groove 24 is provided on the support part 23. This structure is convenient for the combustion furnace to adapt to cooking utensils with different diameters and is convenient for users to use.

[0051] In this embodiment, the support arm 2 is in a sheet shape, and a reinforcing rib 25 is provided on the side surface of the support arm 2. The reinforcing rib 25 is used to prevent the support arm 2 from being bent and damaged due to excessive force.

[0052] The above embodiments are only preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. A novel combustion furnace comprises a furnace body (1), a furnace head (7) and a plurality of support arms (2) arranged on the outer periphery of the furnace head (7), characterized in that: The furnace body (1) is provided with an ignition device, which comprises a piezoelectric igniter (5), the piezoelectric igniter (5) is provided with a metal cap (52) and an ignition head, the furnace head (7) is made of a metal material, the metal cap (52) is tightly pressed against the furnace head (7), an air outlet is provided at the upper end of the furnace head (7), and the ignition head extends to the top of the furnace head (7).

2. A novel combustion furnace according to claim 1, characterized in that: The piezoelectric igniter (5) comprises an igniter body (53), and an ignition head comprises a detachably connected high-voltage lead (54) and a discharge needle (57), wherein the high-voltage lead (54) is fixedly arranged on the igniter body (53), and the discharge needle (57) is detachably arranged on the furnace body (1), and the end of the discharge needle (57) extends above the furnace head (7).

3. A novel combustion furnace according to claim 2, characterized in that: The discharge needle (57) is sleeved with an insulating seat (56), which is fixedly arranged on the furnace body (1), and a guide groove extending toward the furnace head (7) is arranged on the insulating seat (56).

4. A novel combustion furnace according to claim 2, characterized in that: The high-voltage lead (54) is provided with a sleeve (55); one end of the discharge needle (57) extends into the furnace body (1) and penetrates into the sleeve (55); the high-voltage lead (54) and / or the discharge needle (57) are detachably connected to the sleeve (55); and the igniter is electrically connected to the discharge needle (57) via the high-voltage lead (54).

5. A novel combustion furnace according to claim 4, characterized in that: The sleeve (55) is a flexible insulating sleeve, and the sleeve (55) is tightly matched with the high-voltage lead (54) and the discharge needle (57) respectively, the high-voltage lead (54) and the discharge needle (57) are in contact with each other, or a discharge gap is provided between the high-voltage lead (54) and the discharge needle (57).

6. A novel combustion furnace according to claim 1, characterized in that: The burner head (7) is arranged in the middle of the furnace body (1); a control switch (51) is arranged at one end of the piezoelectric igniter (5) away from the burner head (7); and a control rod (6) is movably arranged on the furnace body (1); when the control rod (6) drives the control switch (51) to move, the control rod (6) abuts against the control switch (51) and drives the metal cap (52) to abut against the burner head (7).

7. A novel combustion furnace according to claim 6, characterized in that: At least two groups of fixed hooks (16) are provided on the furnace body (1), and the fixed hooks (16) are respectively provided on both sides of the piezoelectric igniter (5) to fix the piezoelectric igniter (5) on the furnace body (1), and the fixed hooks (16) are provided with guide surfaces (17), and the piezoelectric igniter (5) abuts against the guide surfaces (17) to deform the fixed hooks (16), thereby making the fixed hooks (16) cooperate with the piezoelectric igniter (5).

8. A novel combustion furnace according to claim 6, characterized in that: The control rod (6) is rotatably arranged on the furnace body (1), and a limit swing groove (15) is arranged on the furnace body (1), the control rod (6) is inserted into the limit swing groove (15), and the limit swing groove (15) limits the movement range of the control rod (6) and enables the control rod (6) to always press against the control switch (51).

9. A novel combustion furnace according to claim 1, characterized in that: A storage chamber (11) is provided at the upper end of the furnace body (1), a plurality of mounting seats (4) are provided in the storage chamber (11), the mounting seats (4) are arranged on the periphery of the furnace head (7), a connecting seat (3) is rotatably provided on the mounting seat (4) via a first hinge shaft (31), a support arm (2) is rotatably provided on the connecting seat (3) via a second hinge shaft (21), a supporting convex edge (12) is provided on the periphery of the storage chamber (11), the support arm (2) is turned toward the outside of the furnace body (1) and abuts against the supporting convex edge (12); the support arm (2) can be relatively turned along the second hinge shaft (21) and turned toward the middle of the storage chamber (11), and the connecting seat (3) can be relatively turned along the first hinge shaft (31) so that the support arm (2) is folded and stored toward the bottom of the storage chamber (11).

10. A novel combustion furnace according to claim 9, characterized in that: A positioning groove (13) is provided at the upper end of the supporting protrusion (12), the supporting arm (2) flips into the positioning groove (13) and is supported by the positioning groove (13), and the positioning groove (13) limits the relative swing of the supporting arm (2) to the two sides of the positioning groove (13).

Images