Combustion furnace

Abstract

The utility model belongs to the technical field of combustion furnaces, and particularly relates to a 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, a containing cavity is formed in the upper end of the furnace body, a plurality of mounting seats are arranged in the containing cavity, and the mounting seats are arranged on the periphery of the furnace end. A connecting seat is rotatably arranged on the mounting seat through a first hinge shaft, the supporting arm is rotatably arranged on the connecting seat through a second hinge shaft, a supporting convex edge is arranged on the periphery of the containing cavity, and the supporting arm is overturned towards the outer side of the furnace body and abuts against the supporting convex edge; the supporting arms can relatively turn over along the second hinge shafts and turn over towards the middle of the containing cavity, the connecting bases can relatively turn over along the first hinge shafts and enable the supporting arms to be folded and contained towards the bottom of the containing cavity, and the combustion furnace is simple in structure and convenient to store and transport.

Description

Technical Field

[0001] The utility model belongs to the technical field of combustion furnaces, and particularly relates to a 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, and an installation groove is provided above the furnace body. An integrated support frame is placed in the installation groove. To facilitate the movement and transportation of the combustion furnace and avoid relative movement between the support frame and the furnace body during use, the support frame on some combustion furnaces can be flipped and folded towards the furnace body. For example, a small foldable gas stove disclosed in Chinese Utility Model Patent CN201720543688.7 is composed of a stove top, a combustion pot, a protective cover, a mounting frame, a stop block, a bracket, a pin, a pin shaft, a switch ignition device, a switch ignition knob, a fuel pipe, a ventilation pipe, and a pressure gauge. It is characterized in that: the combustion pot is fixed on the stove top to block the flame, the protective cover is fixed in the center of the combustion pot, the mounting frame is connected to the stove top through a pin, and the mounting frame can rotate around the pin. The bracket is connected to the mounting frame through a pin shaft, and the bracket can rotate around the pin shaft. The stop block is fixed on the mounting frame to limit the position of the bracket. The fuel pipe is fixed in the center of the bottom of the stove top. The switch ignition device is fixedly connected to the fuel pipe, and a switch ignition knob is installed on the switch ignition device to control the on / off and ignition of the gas. The ventilation pipe is connected to the fuel pipe, and the two together serve as a gas passage. The pressure gauge is fixedly connected to the surface of the ventilation pipe to display the gas pressure.

[0004] In the above structure, although the mounting frame can be folded towards the combustion pot, the mounting frame still protrudes from the upper end of the combustion pot, and the mounting frame rotates relative to the stove top during the movement and transportation process, affecting the storage and transportation of the gas stove. 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 combustion furnace with a simple structure and convenient storage and transportation.

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

[0007] A combustion furnace, comprising a furnace body, a burner head arranged on the furnace body, and a plurality of support arms arranged on the outer periphery of the burner head. An accommodation cavity is arranged at the upper end of the furnace body. A plurality of mounting seats are arranged in the accommodation 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. The support arms are rotatably arranged on the connecting seat through a second hinge shaft. A support flange is arranged on the outer periphery of the accommodation cavity. The support arms are turned outwards towards the outside of the furnace body and abutted against the support flange. The support arms can be relatively turned along the second hinge shaft and turned towards the middle of the accommodation cavity, and the connecting seat can be relatively turned along the first hinge shaft to fold and store the support arms towards the bottom of the accommodation cavity.

[0008] The present utility model is further arranged as follows: A positioning groove is arranged at the upper end of the support flange. The support arms are turned into the positioning groove and supported by the positioning groove, and the positioning groove restricts the relative swing of the support arms towards both sides of the positioning groove.

[0009] The present utility model is further arranged as follows: A hook portion adapted to the positioning groove is arranged on the support arm. The hook portion enters the positioning groove as the support arm is turned, and the hook portion passes through the positioning groove and extends to the outside of the support flange.

[0010] The present utility model is further arranged as follows: A support portion extending horizontally is arranged on the support arm. The support portion extends towards both the inside and outside of the support flange respectively, and an anti-slip groove is arranged on the support portion.

[0011] The present utility model is further arranged as follows: The mounting seat and the furnace body are fixedly connected through fasteners. A positioning hole is arranged on the furnace body. The mounting seat is matched with the positioning hole to position and install the mounting seat and the furnace body.

[0012] The present utility model is further arranged as follows: A bottom plate is arranged at the bottom of the accommodation cavity. The positioning hole penetrates through the bottom plate. The mounting seat includes a fixing portion and a mounting portion. The connecting seat is rotatably arranged on the mounting portion. The fixing portion is arranged below the bottom plate. The mounting portion passes through the positioning hole and extends above the bottom plate.

[0013] The present utility model is further arranged as follows: Both the first hinge shaft and the second hinge shaft extend in the horizontal direction. One end of the first hinge shaft extends towards the center of the burner head. The second hinge shaft is perpendicular to the first hinge shaft.

[0014] The present utility model is further arranged as follows: A firing device is arranged on the furnace body. The firing device includes an igniter arranged in the furnace body and a firing head arranged at the bottom of the accommodation cavity. The igniter is detachably connected to the firing head. The firing head is arranged on the side of the burner head. The firing head extends upwards towards the burner head to form a discharge needle.

[0015] The present utility model is further configured such that: a conductive wire is provided on the igniter, a sleeve is provided on the conductive wire, one end of the discharge needle extends into the furnace body and penetrates into the sleeve, the conductive wire and / or the discharge needle are detachably connected to the sleeve, and the igniter is electrically connected to the discharge needle through the conductive wire.

[0016] The present utility model is further configured such that: the igniter is a piezoelectric igniter, and the metal cap of the piezoelectric igniter abuts against the furnace head.

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

[0018] 1. In the present utility model, through the sequentially rotatably connected mounting seat, connecting seat and support arm, the support arm can not only be flipped towards the middle of the furnace body, but also be retracted towards the bottom of the support arm. The structure is simple, convenient for assembly and production, conducive to reducing the volume of the combustion furnace after folding, and convenient for storage and transportation of the combustion furnace.

[0019] 2. In the present utility model, the setting of the positioning groove is convenient for preventing the relative swinging of the support arm on both sides of the positioning groove, conducive to the stable installation of the support arm, and avoiding the deviation of the support arm during use, which affects the stable installation of the cookware on the combustion furnace; the setting of the hook portion is conducive to the stable connection between the support arm and the support convex edge, avoiding the bending deformation of the support convex edge caused by excessive force on the support arm, and conducive to extending the service life of the combustion furnace; the support portions extending towards the inner and outer sides of the support convex edge are convenient for the combustion furnace to adapt to cookware with different diameters, facilitating the use of the user.

[0020] 3. In the present utility model, the setting of the positioning hole is convenient for the quick positioning and installation of the mounting seat, avoiding the deviation or misalignment of the mounting seat during installation, and conducive to the positioning connection between the support arm and the support convex edge; when the cookware is large, the cookware and the items stored therein are very heavy during use, and the cookware will abut against the outer side of the support arm. The fixing portion provided under the bottom plate prevents the support arm from being subjected to excessive force, resulting in the loosening of the connection structure between the mounting seat and the furnace body, and is conducive to extending the service life of the combustion furnace; the first hinge shaft extending towards the center of the furnace head is convenient for the support arm to be flipped towards the bottom of the installation groove, avoiding the swinging of the support arm towards the support convex edge or the furnace head during the unfolding or folding process of the support arm, facilitating the unfolding and retraction of the support arm, and the second hinge shaft perpendicular to the first hinge shaft is convenient for the support arm to be unfolded towards the outside of the furnace body.

[0021] 4. In the present utility model, the detachable connection between the igniter and the ignition head is convenient for the assembly of the combustion furnace. The discharge needle extending upwards from the furnace head is convenient for the ignition of the combustion furnace, reducing the escape of gas during the ignition process, reducing the waste of gas, and being beneficial to the health of the user; the conductive wire and / or the discharge needle detachably connected to the sleeve are convenient for the installation of the igniter and the ignition head, facilitating the assembly and production of the combustion furnace; the metal cap of the piezoelectric igniter is negatively charged. Since the metal cap abuts against the furnace head, the furnace head is negatively charged, thus facilitating the formation of an electric arc between the discharge needle and the furnace head, and facilitating the piezoelectric igniter to ignite the gas stove of the present utility model. Brief Description of the Drawings

[0022] Figure 1 is a schematic structural view of the present utility model;

[0023] Figure 2 is a schematic structural view when the support arm of the present utility model is received in the receiving cavity;

[0024] Figure 3 is an exploded view of the present utility model;

[0025] Figure 4 is a sectional view of the present utility model;

[0026] Figure 5 is a schematic partial structural view of the present utility model;

[0027] Figure 6 is a schematic structural view of the furnace body of the present utility model;

[0028] Figure 7 is a schematic connection structural view of the mounting seat, the connecting seat and the support arm of the present utility model;

[0029] Figure 8 is a schematic structural view of the support arm of the present utility model.

[0030] The meanings of the reference numerals in the figures: 1 - furnace body; 11 - receiving cavity; 12 - supporting flange; 13 - positioning groove; 14 - bottom plate; 141 - positioning hole; 2 - support arm; 21 - second hinge shaft; 22 - hook portion; 23 - supporting 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; 43 - fastener; 5 - igniter; 51 - control switch; 52 - metal cap; 53 - control rod; 54 - conducting wire; 55 - sleeve; 6 - ignition head; 61 - discharge needle; 7 - burner head. Detailed Description of the Preferred Embodiments

[0031] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0032] See Figures 1 to 8As shown in the figure, a combustion furnace includes a furnace body 1, a burner head 7 is provided on the furnace body 1, and a number of support arms 2 are arranged on the outer periphery of the burner head 7. An accommodation cavity 11 is provided at the upper end of the furnace body 1. A number of mounting seats 4 are arranged in the accommodation 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 accommodation cavity 11. The support arm 2 is turned outward to 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 to the middle of the accommodation cavity 11. And the connecting seat 3 can be relatively turned along the first hinge shaft 31 to fold and store the support arm 2 to the bottom of the accommodation cavity 11. In this structure, the support arm 2 can not only be turned to the middle of the furnace body 1 but also be stored at the bottom of the support arm 2 through the sequentially rotatably connected mounting seat 4, connecting seat 3 and support arm 2. The structure is simple, convenient for assembly and production, beneficial to reducing the volume of the combustion furnace after folding, and convenient for storage and transportation of the combustion furnace.

[0033] 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. And the positioning groove 13 restricts the relative swing of the support arm 2 to 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 to both sides of the positioning groove 13, beneficial to the stable installation of the support arm 2, and avoiding the deviation of the support arm 2 during use from affecting the stable installation of the cooking utensil on the combustion furnace.

[0034] Preferably, a hook portion 22 adapted to the positioning groove 13 is provided on the support arm 2. The hook portion 22 enters the positioning groove 13 as the support arm 2 is turned, and the hook portion 22 passes through the positioning groove 13 and extends to the outside of the support convex edge 12. The setting of the hook portion 22 is beneficial to the stable connection between the support arm 2 and the support convex edge 12, avoiding the bending deformation of the support convex edge 12 caused by the excessive force on the support arm 2, and beneficial to extending the service life of the combustion furnace.

[0035] A support portion 23 extending horizontally is provided on the support arm 2. The support portion 23 extends to both the inside and outside of the support convex edge 12, and an anti-slip groove 24 is provided on the support portion 23. This structure is convenient for the combustion furnace to adapt to cooking utensils with different diameters and convenient for users to use.

[0036] In the present utility model, both the first hinge shaft 31 and the second hinge shaft 21 extend in the horizontal direction, and one end of the first hinge shaft 31 extends towards the center of the burner head 7. The second hinge shaft 21 is perpendicular to the first hinge shaft 31. The first hinge shaft 31 extending towards the center of the burner head 7 is convenient for the support arm 2 to be turned to the bottom of the installation groove, avoiding the swing of the support arm 2 towards the support convex edge 12 or the burner head 7 during the unfolding or folding of the support arm 2, and convenient for the unfolding and storage of the support arm 2. And the second hinge shaft 21 perpendicular to the first hinge shaft 31 is convenient for the support arm 2 to be unfolded to the outside of the furnace body 1.

[0037] In this embodiment, the connecting seat 3 includes a first connecting portion 32 and a second connecting portion 33 arranged in an L shape. When the second hinge shaft 21 is perpendicular to the first hinge shaft 31, the first connecting portion 32 and the second connecting portion 33 are perpendicular to each other, the first hinge shaft 31 is arranged on the first connecting portion 32, and the second hinge shaft 21 is arranged on the second connecting portion 33.

[0038] The mounting seat 4 and the furnace body 1 are fixedly connected by fasteners 43. The furnace body 1 is provided with positioning holes 141. The mounting seat 4 cooperates with the positioning holes 141 to position and install the mounting seat 4 on the furnace body 1. The arrangement of the positioning holes 141 facilitates the quick positioning and installation of the mounting seat 4, avoids the skew or misalignment of the installation of the mounting seat 4, is conducive to the positioning connection between the support arm 2 and the support flange 12, and is conducive to the cooperation between the hook portion 22 and the positioning groove 13.

[0039] When the cookware is large, the cookware and the items stored therein will be very heavy during use, and the cookware will abut against the position of the support arm 2 outside the support flange 12, which will cause an upward force on the mounting seat 4. Preferably, in the present utility model, a bottom plate 14 is provided at the bottom of the storage cavity 11, the positioning holes 141 penetrate through the bottom plate 14, and the mounting seat 4 includes a fixing portion 41 and a mounting portion 42. The connecting seat 3 is rotatably arranged on the mounting portion 42. The fixing portion 41 is arranged below the bottom plate 14 and is relatively fixed to the bottom plate 14 by fasteners 43. The mounting portion 42 passes through the positioning holes 141 and extends above the bottom plate 14. The fixing portion 41 arranged below the bottom plate 14 prevents the support arm 2 from being overstressed and causing the connection structure between the mounting seat 4 and the furnace body 1 to become loose, which is conducive to extending the service life of the combustion furnace.

[0040] In this embodiment, the support arm 2 is in a sheet shape, and reinforcing ribs 25 are provided on the side surface of the support arm 2 to prevent the support arm 2 from being bent and damaged due to excessive force.

[0041] In the present utility model, a lighting device is provided on the furnace body 1. The lighting device includes an igniter 5 arranged in the furnace body 1 and a lighting head 6 arranged at the bottom of the storage cavity 11. The igniter 5 and the lighting head 6 are detachably connected. The detachable connection between the igniter 5 and the lighting head 6 facilitates the separate installation of the igniter 5 and the lighting head 6 and is convenient for the assembly of the combustion furnace.

[0042] The lighting head 6 is arranged on the side of the burner head 7, and the lighting head 6 extends upward to form a discharge needle 61 above the burner head 7. Extending upward to form the discharge needle 61 above the burner head 7 facilitates the ignition of the combustion furnace, reduces the escape of gas during the ignition process, reduces the waste of gas, and is beneficial to the health of the user.

[0043] In this embodiment, a conducting wire 54 is provided on the igniter 5, and a sleeve 55 is provided on the conducting wire 54. One end of the discharge needle 61 extends into the furnace body 1 and penetrates into the sleeve 55. The conducting wire 54 and / or the discharge needle 61 are detachably connected to the sleeve 55. The igniter 5 is electrically connected to the discharge needle 61 through the conducting wire 54. The conducting wire 54 and / or the discharge needle 61 detachably connected to the sleeve 55 facilitate the installation of the igniter 5 and the ignition head 6, and facilitate the assembly and production of the combustion furnace.

[0044] Preferably, the igniter 5 is a piezoelectric igniter 5. The metal cap 52 of the piezoelectric igniter 5 abuts against the burner head 7. The metal cap 52 of the piezoelectric igniter 5 is negatively charged. Since the metal cap 52 abuts against the burner head 7, the burner head 7 is negatively charged, thereby facilitating the formation of an electric arc between the discharge needle 61 and the burner head 7, and facilitating the piezoelectric igniter 5 to ignite the gas stove of the present invention.

[0045] The two ends of the piezoelectric igniter 5 are respectively a metal cap 52 and a control switch 51. A control rod 53 is rotatably provided on the furnace body 1. The control rod 53 can abut against the control switch 51 and drive the piezoelectric igniter 5 to discharge. Preferably, the control rod 53 can drive the metal cap 52 to tightly abut against the burner head 7 through the control switch 51.

[0046] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A combustion furnace, comprising 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: 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).

2. A combustion furnace according to claim 1, 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).

3. A combustion furnace according to claim 2, characterized in that: The support arm (2) is provided with a hook portion (22) adapted to the positioning groove (13); the hook portion (22) enters the positioning groove (13) as the support arm (2) turns over, and the hook portion (22) passes through the positioning groove (13) and extends to the outside of the support protrusion (12).

4. A combustion furnace according to claim 1, characterized in that: The support arm (2) is provided with a laterally extending support portion (23), the support portion (23) extends to both inner and outer sides of the support convex edge (12), and an anti-slip groove (24) is provided on the support portion (23).

5. A combustion furnace according to claim 1, characterized in that: The mounting seat (4) is fixedly connected to the furnace body (1) via a fastener (43); a positioning hole (141) is provided on the furnace body (1); the mounting seat (4) cooperates with the positioning hole (141) to position and install the mounting seat (4) and the furnace body (1).

6. A combustion furnace according to claim 5, characterized in that: A bottom plate (14) is provided at the bottom of the storage cavity (11); a positioning hole (141) passes through the bottom plate (14); the mounting seat (4) comprises a fixing portion (41) and a mounting portion (42); the connecting seat (3) is rotatably arranged on the mounting portion (42); the fixing portion (41) is arranged below the bottom plate (14); and the mounting portion (42) passes through the positioning hole (141) and extends to above the bottom plate (14).

7. A combustion furnace according to claim 1, characterized in that: The first hinge axis (31) and the second hinge axis (21) both extend in the horizontal direction, and one end of the first hinge axis (31) extends toward the center of the furnace head (7), and the second hinge axis (21) is arranged perpendicular to the first hinge axis (31).

8. A combustion furnace according to claim 1, characterized in that: The furnace body (1) is provided with an ignition device, the ignition device comprising an igniter (5) arranged in the furnace body (1) and an ignition head (6) arranged at the bottom of the storage cavity (11); the ignition head (6) is arranged on the side of the furnace head (7), and the ignition head (6) extends upward from the furnace head (7) to form a discharge needle (61).

9. A combustion furnace according to claim 8, characterized in that: The igniter (5) is provided with a conductive wire (54), and a sleeve (55) is provided on the conductive wire (54); one end of the discharge needle (61) extends into the furnace body (1) and penetrates into the sleeve (55); the conductive wire (54) and / or the discharge needle (61) are detachably connected to the sleeve (55); and the igniter (5) is electrically connected to the discharge needle (61) via the conductive wire (54).

10. A combustion furnace according to claim 8, characterized in that: The igniter (5) is a piezoelectric igniter (5), and a metal cap (52) of the piezoelectric igniter (5) abuts against the burner head (7).

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