CN114135903A - Central fire cover and gas stove - Google Patents

Abstract

The invention provides a central fire cover and a gas stove, and relates to the technical field of gas stoves, wherein the central fire cover comprises a fire cover body and a temperature probe, and the temperature probe is arranged on the inner side of the fire cover body; the central fire cover comprises a fire cover ignition body and a check ring arranged on the upper end surface of the fire cover ignition body, and the upper end of the temperature probe is higher than the check ring; the fire cover ignition body is provided with an ignition hole and a flame hole, and a boss extends outwards along the radial direction and is positioned above the ignition hole; the retainer ring is provided with fluid convection grooves which are oppositely arranged. The gas stove comprises a central fire cover. The technical problem that the gas stove in the prior art is flameout when the big fire is changed into the small fire is solved, and the technical effect that the gas stove cannot be flameout when the big fire is changed into the small fire is achieved.

Description

Central fire cover and gas stove

Technical Field

The invention relates to the technical field of gas cookers, in particular to a central fire cover and a gas stove.

Background

Along with the improvement of living standard of people, people have more and more demand on intelligent cooking utensils, so various types of intelligent cooking utensils appear on the market. For example: prevent dry combustion method intelligence cooking utensils. The dry-burning prevention intelligent cooker has the function of preventing potential safety hazards such as dry burning.

However, the existing dry-burning-resistant intelligent cooker at least has the following problems:

interior fire lid (or central fire lid) can block too much heat conduction to preventing dry combustion method probe department when burning to a certain extent, has avoided preventing dry combustion method probe temperature too high, has guaranteed the accuracy of preventing dry combustion method probe to bottom of a boiler temperature judgement, but, when big fire of cooking utensils changes little fire, the external pressure is too big appears easily, and central flame overlength appears easy flameout phenomenon, influences user experience.

When the existing dry-burning-prevention intelligent cooker burns, the generated heat excessively permeates to the dry-burning-prevention probe, the dry-burning-prevention probe is easily interfered, and the dry-burning-prevention probe can misjudge the temperature of the pot bottom, so that the normal use of the gas stove is influenced.

Disclosure of Invention

The invention aims to provide a central fire cover and a gas stove, so as to solve the technical problem that the gas stove in the prior art is flameout when big fire is changed into small fire.

In a first aspect, the present invention provides a fire centre cover comprising: the fire cover comprises a fire cover body and a temperature probe, wherein the temperature probe is arranged on the inner side of the fire cover body; the central fire cover comprises a fire cover ignition body and a check ring arranged on the upper end surface of the fire cover ignition body, and the upper end of the temperature probe is higher than the check ring;

the fire cover ignition body is provided with an ignition hole and a flame hole, and a boss extends outwards along the radial direction and is positioned above the ignition hole;

and the retainer ring is provided with fluid convection grooves which are oppositely arranged.

Further, the fluid convection groove penetrates through the side wall surface of the retainer ring in the axial direction of the retainer ring.

Further, the flame holes comprise a first flame hole and a second flame hole which are arranged in a plurality of numbers;

the first flame holes and the second flame holes are arranged at intervals along the circumferential direction of the ignition body of the fire cover;

the first flame hole is positioned above the second flame hole, and the aperture of the first flame hole is larger than that of the second flame hole; the ignition hole is positioned between the adjacent first flame holes or the adjacent second flame holes.

Further, the central fire cover also comprises a heat insulation cylinder;

the heat insulation barrel is sleeved between the temperature probe and the fire cover body and used for blocking high-temperature hot air from flowing to the temperature probe.

Further, the edge of the upper end of the heat insulation cylinder is flanged outwards along the radial direction;

and a heat insulation space is enclosed by the flanging, the outer wall surface of the heat insulation cylinder, the upper end surface of the fire cover ignition body and the inner wall surface of the retainer ring.

Further, the height of the flanging is positioned between the retainer ring and the temperature probe.

Further, the fire cover ignition body is provided with a fire cover central hole for inserting the heat insulation cylinder;

the heat insulation cylinder is provided with a heat insulation central hole for inserting the temperature probe;

the temperature probe is provided with a limiting part, the temperature probe is inserted into the heat insulation center hole from top to bottom, and the limiting part is clamped at the bottom end of the heat insulation cylinder.

Furthermore, the fire cover central hole comprises a conical central hole and a circular central hole which are communicated from top to bottom, and a limiting table top is formed at the joint of the conical central hole and the circular central hole;

the bottom surface of the heat insulation cylinder is abutted to the limiting table board, and the outer wall surface of the heat insulation cylinder is a conical outer wall surface matched with the conical central hole.

Furthermore, the conical outer wall surface of the heat insulation cylinder and the conical central hole of the heat insulation cylinder form interference fit.

Has the advantages that:

the central fire cover comprises a fire cover ignition body and a check ring arranged on the upper end surface of the fire cover ignition body, the upper end of the temperature probe is higher than the check ring, the temperature probe can detect the temperature of the bottom of a cooker, meanwhile, the check ring can prevent part of high-temperature hot air flow from flowing to the temperature probe, and the temperature measurement accuracy of the temperature probe is improved; the fire cover ignition body is provided with an ignition hole and a flame hole, the fire cover ignition body extends outwards along the radial direction to form a boss, the boss is positioned above the ignition hole, the flame stabilizing effect can be achieved through the ignition hole, the flame pressing effect can be achieved through the boss, and the quick ignition can be achieved through the cooperation of the ignition hole and the boss; meanwhile, the fluid convection groove which is oppositely arranged is formed in the check ring, so that air convection can be kept during combustion, the internal and external pressure difference cannot be too large when big fire is changed into small fire, and the flameout phenomenon caused by too high flame can be avoided.

In a second aspect, the present invention provides a gas range comprising: a gas burner body and a central fire cover according to any one of the preceding embodiments;

the central fire cover is arranged on the furnace end inside the gas stove body.

Has the advantages that:

the gas stove provided by the invention comprises the central fire cover, so that the technical advantages and effects of the gas stove also comprise the technical advantages and effects of the central fire cover, and are not repeated herein.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a central fire cover according to an embodiment of the present invention;

FIG. 2 is a schematic view of the fire lid body at a first angle;

FIG. 3 is a schematic structural view of the fire lid body at a second angle;

FIG. 4 is a cross-sectional view of a center fire cover provided in accordance with an embodiment of the present invention;

fig. 5 is a schematic diagram of the fire cover body and the heat insulation cylinder.

Icon:

100-fire lid body; 110-fire lid ignition body; 120-a retainer ring; 130-fire lid center hole; 111-boss; 112-ignition hole; 113-a first flame hole; 114-a second flame hole; 121-fluid convection cell; 131-a tapered central bore;

200-temperature probe; 210-a limiting part;

300-a heat insulation cylinder; 310-flanging; 320-thermally insulating central hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The present embodiment provides a central fire cover, referring to fig. 1 to 3, which includes a fire cover body 100 and a temperature probe 200, the temperature probe 200 being installed inside the fire cover body 100; the central fire cover comprises a fire cover ignition body 110 and a retainer ring 120 arranged on the upper end surface of the fire cover ignition body 110, and the upper end of the temperature probe 200 is higher than the retainer ring 120; the fire cover ignition body 110 is provided with an ignition hole 112 and a flame hole, the fire cover ignition body 110 extends outwards along the radial direction to form a boss 111, and the boss 111 is positioned above the ignition hole 112; the retainer ring 120 is provided with fluid convection grooves 121 disposed oppositely.

In the central fire cover provided by the embodiment, the upper end of the temperature probe 200 is higher than the retainer ring 120, the temperature probe 200 can detect the temperature at the bottom of the cookware, meanwhile, the retainer ring 120 can prevent part of high-temperature hot air flow from flowing to the temperature probe 200, and the accuracy of temperature measurement of the temperature probe 200 is improved; the ignition body 110 of the fire cover is provided with an ignition hole 112 and a flame hole, the ignition body 110 of the fire cover extends outwards along the radial direction to form a boss 111, the boss 111 is positioned above the ignition hole 112, the flame stabilizing effect can be achieved through the ignition hole 112, the flame pressing effect can be achieved through the boss 111, and the quick ignition can be achieved through the cooperation of the ignition hole 112 and the boss 111; meanwhile, the fluid convection groove 121 oppositely arranged is formed in the retainer ring 120, so that air convection can be kept during combustion, the internal and external pressure difference cannot be too large when a big fire is changed into a small fire, and the flameout phenomenon caused by too high flame can be avoided.

Further, ignition hole 112 is located one side of fire lid ignition body 110, can play the steady flame effect through ignition hole 112, can play the flame effect of pressing through boss 111, adopts asymmetric design (only set up ignition hole 112 in one side of fire lid ignition body 110 promptly) together with ignition hole 112, can be when the combustor burning, and the top of these two places all does not have flame to guarantee that the air can not by the flame separation. In this embodiment, referring to fig. 2 or fig. 3, the fluid convection groove 121 axially penetrates through the side wall surface of the retainer ring 120 along the retainer ring 120, that is, the upper end of the fluid convection groove 121 is open, so that the size of the opening of the fluid convection groove 121 can be relatively increased, and the flow of convection fluid is further increased, so that the difference between the internal pressure and the external pressure when a big fire changes into a small fire is not too large, and the occurrence of flameout phenomenon caused by too high flame is further ensured.

In other embodiments, the fluid convection groove 121 may be provided in the form of a hole, i.e., the upper end of the fluid convection groove 121 is not open.

Specifically, referring to fig. 1 to 3, the flame holes include a first flame hole 113 and a second flame hole 114, which are each provided in plurality; the plurality of first flame holes 113 and the plurality of second flame holes 114 are arranged at intervals along the circumferential direction of the ignition body 110; the first flame holes 113 are positioned above the second flame holes 114, and the aperture of the first flame holes 113 is larger than that of the second flame holes 114; the ignition hole 112 is located between adjacent first flame holes 113 or second flame holes 114.

Illustratively, the ignition holes 112 may be provided in six, wherein three ignition holes 112 are located in an upper row and arranged side by side, three ignition holes 112 are located in a lower row and arranged side by side, and three ignition holes 112 in the upper row are located between adjacent first flame holes 113; the three ignition holes 112 of the lower row are located between the adjacent second flame holes 114.

It should be noted that the number of the ignition holes 112 is not limited to six, and may be specifically set as required; meanwhile, the diameter of the ignition hole 112 may not be limited, and it may be adapted to different sizes of central fire covers.

On the basis of the above embodiment, referring to fig. 1 and 4, the central fire cover further includes an insulation cartridge 300; the heat insulation cylinder 300 is sleeved between the temperature probe 200 and the fire cover body 100, and is used for blocking the high-temperature hot air flow from flowing to the temperature probe 200.

When the high-temperature hot air impact heat insulation barrel 300 is used specifically, when the high-temperature hot air near the central fire cover impacts the heat insulation barrel 300, the flanging of the heat insulation barrel 300 can have a certain blocking effect on the high-temperature hot air, so that the high-temperature hot air can not directly impact the temperature probe 200 to cause the interference and the misjudgment, and the accuracy of the judgment on the temperature of the pot bottom is ensured.

Further, referring to fig. 4 and 5, the upper end edge of insulating cartridge 300 is formed radially outward as a flange 310; the flange 310, the outer wall surface of the heat insulation cylinder 300, the upper end surface of the fire lid ignition body 110, and the inner wall surface of the retainer ring 120 enclose a heat insulation space.

Specifically, the high-temperature hot air flow near the central fire cover can impact the periphery of the heat insulation cylinder 300, and the flange of the heat insulation cylinder 300 can generate a certain blocking effect on the high-temperature hot air flow, so that the high-temperature hot air flow enters the heat insulation space defined by the flange 310, the outer wall surface of the heat insulation cylinder 300, the upper end surface of the fire cover ignition body 110 and the inner wall surface of the retainer ring 120, the high-temperature hot air flow cannot contact the temperature probe 200, and the accuracy of temperature measurement of the temperature probe 200 is further ensured. With continued reference to fig. 4, the height of the flange 310 is located between the retainer ring 120 and the temperature probe 200, so that the flange can better block high-temperature hot air flow while forming a heat insulation space.

Referring again to fig. 4, in one embodiment of the present application, the fire lid ignition body 110 has a fire lid central hole 130 for inserting the heat insulating cartridge 300; the heat insulation cylinder 300 has a heat insulation center hole 320 for inserting the temperature probe 200; the temperature probe 200 has a limiting portion 210, wherein the temperature probe 200 is inserted into the heat insulation central hole 320 from top to bottom, and the limiting portion 210 is clamped at the bottom end of the heat insulation cylinder 300.

Specifically, the aperture of the fire cover central hole 130 is larger than the aperture of the heat insulation central hole 320; the temperature probe 200 comprises a probe part and a main body part connected with the probe part, wherein the size of the probe part is larger than that of the main body part, so that the probe part and the main body part form a limiting part 210 at the joint, and the size of the heat insulation central hole 320 at the bottom end of the heat insulation cylinder 300 is matched with that of the main body part, so that the limiting part 210 of the temperature probe 200 can be clamped at the bottom end of the heat insulation cylinder 300.

Further, the fire cover central hole 130 comprises a conical central hole 131 and a circular central hole which are communicated from top to bottom, and a limiting table top is formed at the joint of the conical central hole 131 and the circular central hole; the bottom surface of the heat insulation cylinder 300 abuts against the limit table surface, and the outer wall surface of the heat insulation cylinder 300 is a tapered outer wall surface adapted to the tapered central hole 131.

Specifically, the conical outer wall surface of the heat insulation cylinder 300 is in conical surface fit with the conical center hole 131 of the fire cover center hole 130, and when the cooker is used actually, and the cooker has a certain weight, the cooker can press down the heat insulation cylinder 300 when the weight of the cooker is larger, so that the conical outer wall surface of the heat insulation cylinder 300 moves downwards along the conical center hole 131 of the fire cover center hole 130, and the distance of the downward movement is larger; on the contrary, when the weight of the cooker is smaller, the distance that the conical outer wall surface of the heat insulation cylinder 300 moves downwards along the conical center hole 131 of the fire cover center hole 130 is smaller; meanwhile, because the limiting part 210 of the temperature probe 200 is clamped at the bottom end of the heat insulation cylinder 300, when the conical outer wall surface of the heat insulation cylinder 300 moves downwards along the conical center hole 131 of the fire cover center hole 130, the temperature probe 200 also moves downwards, so that the bottom end of a cookware is better contacted with the temperature probe 200, the self-adaptive function of the central fire cover is improved, the temperature of the bottom end of the cookware is accurately acquired, the cookware can adapt to dry burning prevention of different cookware, and meanwhile, the arrangement can be convenient to disassemble and clean.

Further, the tapered outer wall surface of the heat insulating cylinder 300 is interference-fitted with the tapered center hole 131 of the heat insulating cylinder 300.

The embodiment provides a gas stove, which comprises a gas stove body and the central fire cover; the central fire cover is arranged on the furnace end in the gas stove body. The gas stove provided by the embodiment comprises the central fire cover, so that the technical advantages and effects of the gas stove also comprise the technical advantages and effects of the central fire cover, and are not repeated herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A fire center cover comprising: the fire cover comprises a fire cover body (100) and a temperature probe (200), wherein the temperature probe (200) is installed on the inner side of the fire cover body (100); the central fire cover is characterized by comprising a fire cover ignition body (110) and a check ring (120) arranged on the upper end surface of the fire cover ignition body (110), and the upper end of the temperature probe (200) is higher than the check ring (120);

the ignition cover comprises a fire cover ignition body (110), wherein an ignition hole (112) and a flame hole are formed in the fire cover ignition body (110), a boss (111) extends outwards in the radial direction of the fire cover ignition body (110), and the boss (111) is located above the ignition hole (112);

the retainer ring (120) is provided with fluid convection grooves (121) which are oppositely arranged.

2. The center fire cover according to claim 1, wherein the fluid convection groove (121) penetrates through a side wall surface of the retainer ring (120) in an axial direction of the retainer ring (120).

3. The center flame cover according to claim 1, wherein the flame holes include a first flame hole (113) and a second flame hole (114) each provided in plurality;

the first flame holes (113) and the second flame holes (114) are arranged at intervals along the circumferential direction of the fire cover ignition body (110);

the first flame holes (113) are positioned above the second flame holes (114), and the aperture of the first flame holes (113) is larger than that of the second flame holes (114); the ignition hole (112) is located between the adjacent first flame holes (113) or second flame holes (114).

4. The fire center cover of claim 1 further comprising a heat insulating cartridge (300);

the heat insulation cylinder (300) is sleeved between the temperature probe (200) and the fire cover body (100) and used for blocking high-temperature hot air from flowing to the temperature probe (200).

5. The fire center cover according to claim 4, wherein the upper end edge of the heat insulating cylinder (300) is flanged (310) radially outward;

and a heat insulation space is defined by the flanging (310), the outer wall surface of the heat insulation cylinder (300), the upper end surface of the fire cover ignition body (110) and the inner wall surface of the retainer ring (120).

6. The center fire cover according to claim 5, wherein the height of the flange (310) is located between the retainer ring (120) and the temperature probe (200).

7. The central fire cover according to claim 4, wherein said fire cover ignition body (110) has a fire cover central hole (130) for inserting said heat insulating cartridge (300);

the heat insulation cylinder (300) is provided with a heat insulation central hole (320) for inserting the temperature probe (200);

temperature probe (200) have spacing portion (210), temperature probe (200) from top to bottom insert locate thermal-insulated centre bore (320), just spacing portion (210) card is located the bottom of a thermal-insulated section of thick bamboo (300).

8. The central fire cover according to claim 7, wherein the fire cover central hole (130) comprises a conical central hole (131) and a circular central hole which are communicated from top to bottom, and the joint of the conical central hole (131) and the circular central hole forms a limiting table;

the bottom surface of the heat insulation cylinder (300) is abutted to the limiting table board, and the outer wall surface of the heat insulation cylinder (300) is a conical outer wall surface matched with the conical central hole (131).

9. The fire center cover of claim 8, wherein the tapered outer wall surface of the heat insulating cylinder (300) forms an interference fit with the tapered center hole (131) of the heat insulating cylinder (300).

10. A gas range, comprising: a gas burner body and a central fire cover as claimed in any one of claims 1 to 9;

the central fire cover is arranged on the furnace end inside the gas stove body.

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