Center fire cover and gas stove

Abstract

The present invention provides a central fire cover and a gas stove, which relate to the technical field of gas stoves. The central fire cover comprises a fire cover body and a temperature probe, wherein the temperature probe is mounted on the inner side of the fire cover body; the central fire cover comprises a fire cover ignition body and a retaining ring arranged on the upper end surface of the fire cover ignition body, wherein the upper end of the temperature probe is higher than the retaining ring; an ignition hole and a flame hole are arranged on the fire cover ignition body, and a boss is radially extended outwardly from the fire cover ignition body, wherein the boss is located above the ignition hole; and oppositely arranged fluid convection grooves are arranged on the retaining ring. The gas stove comprises a central fire cover. The technical problem of flameout when a gas stove is switched from a high flame to a low flame existing in the prior art is alleviated, and the technical effect of flameout when a high flame is switched from a low flame is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of gas stoves, in particular to a central fire cover and a gas stove. Background Art

[0002] As people's living standards improve, the demand for smart stoves is increasing, so various types of smart stoves have appeared on the market. For example: anti-dry burning smart stoves. The function of anti-dry burning smart stoves is to prevent safety hazards such as dry burning.

[0003] However, the existing anti-dry burning smart stoves have at least the following problems:

[0004] The inner fire cover (or center fire cover) can, to a certain extent, block excessive heat from being conducted to the anti-dry-burn probe during combustion, thus preventing the anti-dry-burn probe from overheating and ensuring the accuracy of the anti-dry-burn probe's judgment of the temperature at the bottom of the pot. However, when the stove switches from high heat to low heat, excessive external pressure may occur, the center flame may be too long, and the flame may easily go out, affecting the user experience.

[0005] When the existing anti-dry-burn smart stove is burning, the heat generated penetrates too much into the anti-dry-burn probe, which easily interferes with the anti-dry-burn probe and causes the anti-dry-burn probe to misjudge the temperature of the bottom of the pot, thereby affecting the normal use of the gas stove. Summary of the invention

[0006] The object of the present invention is to provide a central fire cover and a gas stove, so as to alleviate the technical problem in the prior art that the gas stove goes out when switching from a high fire to a low fire.

[0007] In a first aspect, the present invention provides a central fire cover, comprising: a fire cover body and a temperature probe, wherein the temperature probe is installed on the inner side of the fire cover body; the central fire cover comprises a fire cover ignition body and a retaining ring arranged on the upper end surface of the fire cover ignition body, wherein the upper end of the temperature probe is higher than the retaining ring;

[0008] The fire cover ignition body is provided with an ignition hole and a flame hole, and the fire cover ignition body is provided with a boss extending radially outward, and the boss is located above the ignition hole;

[0009] The retaining ring is provided with fluid convection grooves arranged opposite to each other.

[0010] Furthermore, the fluid convection groove penetrates the side wall surface of the retaining ring along the axial direction of the retaining ring.

[0011] Further, the flame holes include a plurality of first flame holes and a plurality of second flame holes;

[0012] The plurality of first flame holes and the plurality of second flame holes are arranged at intervals along the circumference of the ignition body of the fire cover;

[0013] The first flame hole is located above the second flame hole, and the aperture of the first flame hole is larger than the aperture of the second flame hole; the ignition hole is located between adjacent first flame holes or second flame holes.

[0014] Furthermore, the central fire cover also includes a heat insulation cylinder;

[0015] The heat-insulating tube is disposed between the temperature probe and the fire cover body to block the high-temperature hot air flow from flowing toward the temperature probe.

[0016] Furthermore, the upper edge of the heat-insulating cylinder is flanged radially outward;

[0017] The flange, the outer wall surface of the heat-insulating cylinder, the upper end surface of the fire cover ignition body and the inner wall surface of the retaining ring form a heat-insulating space.

[0018] Furthermore, the height of the flange is located between the retaining ring and the temperature probe.

[0019] Furthermore, the fire cover ignition body has a fire cover center hole for inserting the heat insulation cylinder;

[0020] The heat-insulating cylinder has a heat-insulating central hole for inserting the temperature probe;

[0021] The temperature probe has a limiting portion, the temperature probe is inserted into the heat insulation center hole from top to bottom, and the limiting portion is clamped at the bottom end of the heat insulation cylinder.

[0022] Furthermore, the center hole of the fire cover includes a conical center hole and a circular center hole which are connected from top to bottom, and a limit table is formed at the connection between the conical center hole and the circular center hole;

[0023] The bottom surface of the heat-insulating cylinder is in contact with the limiting table surface, and the outer wall surface of the heat-insulating cylinder adopts a conical outer wall surface that is matched with the conical central hole.

[0024] Furthermore, the conical outer wall surface of the thermal insulation tube forms an interference fit with the conical center hole of the thermal insulation tube.

[0025] Beneficial effects:

[0026] The central fire cover provided by the present invention comprises a fire cover ignition body and a retaining ring arranged on the upper end surface of the fire cover ignition body, the upper end of the temperature probe is higher than the retaining ring, the temperature probe can detect the temperature of the bottom of the cookware, and at the same time, the retaining ring can prevent part of the high-temperature hot air flow from flowing to the temperature probe, thereby improving the accuracy of the temperature measurement of the temperature probe; the fire cover ignition body is provided with an ignition hole and a flame hole, the fire cover ignition body is radially extended outward with a boss, the boss is located above the ignition hole, the ignition hole can play a role in stabilizing the flame, and the boss can play a role in suppressing the flame, and the two can cooperate to achieve rapid ignition; at the same time, the retaining ring is provided with oppositely arranged fluid convection grooves, which can maintain air convection during combustion, so that when a high fire is turned into a low fire, the internal and external pressure difference will not be too large, thereby ensuring that the flameout caused by the flame being too high will not occur.

[0027] In a second aspect, the present invention provides a gas stove, comprising: a gas stove body and a center fire cover as described in any one of the aforementioned embodiments;

[0028] The central fire cover is installed on the burner inside the gas stove body.

[0029] Beneficial effects:

[0030] The gas stove provided by the present invention includes the aforementioned center fire cover. Therefore, the technical advantages and effects that can be achieved by the gas stove also include the technical advantages and effects that can be achieved by the center fire cover, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of a center fire cover provided by an embodiment of the present invention;

[0033] Figure 2 It is a schematic diagram of the structure of the fire cover body at a first angle;

[0034] Figure 3 It is a schematic diagram of the structure of the fire cover body at a second angle;

[0035] Figure 4 A cross-sectional view of a center fire cover provided by an embodiment of the present invention;

[0036] Figure 5 It is a schematic diagram of the disassembly of the fire cover body and the insulation tube.

[0037] icon:

[0038] 100-fire cover body; 110-fire cover ignition body; 120-retaining ring; 130-fire cover center hole; 111-boss; 112-ignition hole; 113-first flame hole; 114-second flame hole; 121-fluid convection groove; 131-conical center hole;

[0039] 200-temperature probe; 210-limiting part;

[0040] 300-insulation tube; 310-flange; 320-insulation center hole. DETAILED DESCRIPTION

[0041] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0045] In addition, the terms "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0048] This embodiment provides a central fire cover, referring to Figures 1 to 3 The central 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 comprises a fire cover ignition body 110 and a retaining ring 120 arranged on the upper end surface of the fire cover ignition body 110, wherein the upper end of the temperature probe 200 is higher than the retaining ring 120; an ignition hole 112 and a flame hole are arranged on the fire cover ignition body 110, and a boss 111 is extended radially outward from the fire cover ignition body 110, wherein the boss 111 is located above the ignition hole 112; and oppositely arranged fluid convection grooves 121 are provided on the retaining ring 120.

[0049] The central fire cover provided in this embodiment has an upper end of the temperature probe 200 higher than the retaining ring 120. The temperature probe 200 can detect the temperature of the bottom of the cookware. At the same time, the retaining ring 120 can prevent part of the high-temperature hot air flow from flowing to the temperature probe 200, thereby improving the temperature measurement accuracy of the temperature probe 200. An ignition hole 112 and a flame hole are provided on the fire cover ignition body 110. The fire cover ignition body 110 has a boss 111 extending radially outward. The boss 111 is located above the ignition hole 112. The ignition hole 112 can stabilize the flame, and the boss 111 can suppress the flame. The two can cooperate to achieve rapid ignition. At the same time, the retaining ring 120 is provided with oppositely arranged fluid convection grooves 121, which can maintain air convection during combustion, so that the internal and external pressure difference will not be too large when the high fire is turned into a low fire, thereby ensuring that the flameout caused by the flame being too high will not occur.

[0050] Furthermore, the ignition hole 112 is located on one side of the fire cover ignition body 110, and the ignition hole 112 can stabilize the flame, and the boss 111 can suppress the flame. Together with the asymmetric design of the ignition hole 112 (i.e., the ignition hole 112 is only provided on one side of the fire cover ignition body 110), when the burner is burning, there is no flame above these two places, thereby ensuring that the air is not blocked by the flame. In this embodiment, referring to Figure 2 or Figure 3 The fluid convection groove 121 penetrates the side wall of the retaining ring 120 along the axial direction of the retaining ring 120, that is, the upper end of the fluid convection groove 121 is open. Such a configuration can relatively increase the opening size of the fluid convection groove 121, further increase the flow rate of the convection fluid, so that the internal and external pressure difference will not be too large when the high fire turns to the low fire, further ensuring that the flameout caused by the flame being too high will not occur.

[0051] In other embodiments, the fluid convection groove 121 may be configured as a hole, that is, the upper end of the fluid convection groove 121 is not open.

[0052] Specifically, refer to Figures 1 to 3 The flame holes include a first flame hole 113 and a second flame hole 114, each of which is arranged in plurality; the plurality of first flame holes 113 and the plurality of second flame holes 114 are arranged at intervals along the circumference of the fire cover ignition body 110; the first flame hole 113 is located above the second flame hole 114, and the aperture of the first flame hole 113 is larger than the aperture of the second flame hole 114; the ignition hole 112 is located between adjacent first flame holes 113 or second flame holes 114.

[0053] Exemplarily, the ignition holes 112 can be set to six, wherein three ignition holes 112 are located in the upper row and arranged side by side, and three ignition holes 112 are located in the lower row and arranged side by side, the three ignition holes 112 in the upper row are located between adjacent first flame holes 113; and the three ignition holes 112 in the lower row are located between adjacent second flame holes 114.

[0054] It should be noted that the number of the ignition holes 112 is not limited to six, and can be set according to specific needs; at the same time, the aperture of the ignition hole 112 is not limited, and it can be adaptively adjusted for center fire covers of different sizes.

[0055] Based on the above embodiments, Figure 1 and Figure 4 The central fire cover also includes an insulation tube 300 ; the insulation tube 300 is sleeved between the temperature probe 200 and the fire cover body 100 to block the high-temperature hot air flow from flowing toward the temperature probe 200 .

[0056] During specific use, when the high-temperature hot air flow near the center fire cover hits the insulation tube 300, the flange of the insulation tube 300 will have a certain blocking effect on the high-temperature hot air flow, ensuring that the high-temperature hot air flow will not directly hit the temperature probe 200 to cause interference and misjudgment, thereby ensuring the accuracy of the judgment of the bottom temperature of the pot.

[0057] Further, see Figure 4 and Figure 5The upper end edge of the insulation tube 300 forms a flange 310 radially outward; the flange 310, the outer wall surface of the insulation tube 300, the upper end surface of the fire cover ignition body 110 and the inner wall surface of the retaining ring 120 form an insulation space.

[0058] Specifically, the high-temperature hot air flow near the central fire cover can impact the surrounding of the insulation tube 300. The flange of the insulation tube 300 will have a certain blocking effect on the high-temperature hot air flow, so that the high-temperature hot air flow enters the insulation space surrounded by the flange 310, the outer wall of the insulation tube 300, the upper end surface of the fire cover ignition body 110 and the inner wall of the retaining ring 120, so that the high-temperature hot air flow will not contact the temperature probe 200, thereby ensuring the accuracy of the temperature measurement of the temperature probe 200. Please continue to refer to Figure 4 The height of the flange 310 is located between the retaining ring 120 and the temperature probe 200. This arrangement can better block the high-temperature hot air flow while forming a heat-insulating space.

[0059] Please refer again Figure 4 In one embodiment of the present application, the fire cover ignition body 110 has a fire cover center hole 130 for inserting the insulation tube 300; the insulation tube 300 has an 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 insulation center hole 320 from top to bottom, and the limiting portion 210 is clamped at the bottom end of the insulation tube 300.

[0060] Specifically, the aperture of the center hole 130 of the fire cover is larger than the aperture of the insulation center hole 320; the temperature probe 200 includes a probe part and a main body part connected to the probe part, and the size of the probe part is larger than the size of the main body part, so that the two form a limiting part 210 at the connection, wherein the size of the insulation center hole 320 at the bottom end of the insulation tube 300 is adapted to the main body part to ensure that the limiting part 210 of the temperature probe 200 can be stuck at the bottom end of the insulation tube 300.

[0061] Furthermore, the fire cover center hole 130 includes a conical center hole 131 and a circular center hole connected from top to bottom, and a limiting table is formed at the connection between the conical center hole 131 and the circular center hole; the bottom surface of the insulation tube 300 abuts against the limiting table, and the outer wall surface of the insulation tube 300 adopts a conical outer wall surface that is compatible with the conical center hole 131.

[0062] Specifically, the conical outer wall surface of the heat insulating tube 300 and the conical center hole 131 of the center hole 130 of the fire cover form a conical surface match. In actual use, since the cookware has a certain weight, when the cookware is heavy, the cookware can press down the heat insulating tube 300, so that the conical outer wall surface of the heat insulating tube 300 moves down along the conical center hole 131 of the center hole 130 of the fire cover, and the downward movement distance is large; on the contrary, when the cookware is light, the conical outer wall surface of the heat insulating tube 300 moves down along the conical center hole 131 of the center hole 130 of the fire cover. at the same time, since the limit portion 210 of the temperature probe 200 is clamped at the bottom end of the insulation tube 300, when the conical outer wall surface of the insulation tube 300 moves downward along the conical center hole 131 of the fire cover center hole 130, the temperature probe 200 also moves downward, so that the bottom end of the pot is better in contact with the temperature probe 200, so as to improve the adaptive function of the center fire cover, and by accurately obtaining the temperature of the bottom end of the pot, it can adapt to different pots to prevent dry burning. At the same time, the above-mentioned arrangement can also be convenient for disassembly and cleaning.

[0063] Furthermore, the conical outer wall surface of the heat insulating tube 300 forms an interference fit with the conical central hole 131 of the heat insulating tube 300 .

[0064] The present embodiment provides a gas stove, which includes a gas stove body and the aforementioned center fire cover; the center fire cover is installed on the burner inside the gas stove body. The gas stove provided in the present embodiment includes the aforementioned center fire cover, and thus, the technical advantages and effects that can be achieved by the gas stove also include the technical advantages and effects that can be achieved by the center fire cover, which will not be repeated here.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A center fire cover, comprising: 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 characteristic is that the central fire cover comprises a fire cover ignition body (110) and a retaining 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 retaining ring (120); The fire cover ignition body (110) is provided with an ignition hole (112) and a flame hole, and the fire cover ignition body (110) is provided with a boss (111) extending radially outward, and the boss (111) is located above the ignition hole (112); The retaining ring (120) is provided with fluid convection grooves (121) arranged opposite to each other; The central fire cover also includes a heat insulation cylinder (300); The heat-insulating cylinder (300) is sleeved between the temperature probe (200) and the fire cover body (100) and is used to block the high-temperature hot air flow from flowing toward the temperature probe (200); The upper edge of the heat-insulating cylinder (300) is radially outwardly formed with a flange (310); The flange (310), the outer wall surface of the heat-insulating cylinder (300), the upper end surface of the fire cover ignition body (110) and the inner wall surface of the retaining ring (120) form a heat-insulating space; The height of the flange (310) is located between the retaining ring (120) and the temperature probe (200); The fluid convection groove (121) penetrates the side wall surface of the retaining ring (120) along the axial direction of the retaining ring (120).

2. The center fire cover according to claim 1, characterized in that: The flame holes include a plurality of first flame holes (113) and second flame holes (114); The plurality of first flame holes (113) and the plurality of second flame holes (114) are arranged at intervals along the circumference of the fire cover ignition body (110); The first flame hole (113) is located above the second flame hole (114), and the aperture of the first flame hole (113) is larger than the aperture of the second flame hole (114); and the ignition hole (112) is located between adjacent first flame holes (113) or second flame holes (114).

3. The center fire cover according to claim 1, characterized in that: The fire cover ignition body (110) has a fire cover center hole (130) for inserting the heat insulation cylinder (300); The heat-insulating cylinder (300) has a heat-insulating central hole (320) for inserting the temperature probe (200); The temperature probe (200) has a limiting portion (210), the temperature probe (200) is inserted into the heat-insulating central hole (320) from top to bottom, and the limiting portion (210) is clamped at the bottom end of the heat-insulating cylinder (300).

4. The center fire cover according to claim 3, characterized in that: The fire cover center hole (130) comprises a conical center hole (131) and a circular center hole which are connected from top to bottom, and a limiting table is formed at the connection between the conical center hole (131) and the circular center hole; The bottom surface of the heat-insulating cylinder (300) is in contact with the limiting table surface, and the outer wall surface of the heat-insulating cylinder (300) is a conical outer wall surface that is compatible with the conical center hole (131).

5. The center fire cover according to claim 4, characterized in that: The conical outer wall surface of the heat-insulating cylinder (300) forms an interference fit with the conical center hole (131) of the heat-insulating cylinder (300).

6. A gas stove, characterized in that: include: A gas stove body and a center fire cover as claimed in any one of claims 1 to 5; The central fire cover is installed on the burner inside the gas stove body.

Images