Fire cover and burner

Abstract

The present invention discloses a fire cover and a burner, which include a fire cover body and a cover body covering the fire cover body. The periphery of the cover body extends outward to form a water retaining eaves. The lower end of the water retaining eaves is provided with a surrounding overflow protection net. The overflow protection net is provided with heat dissipation holes. The periphery of the cover body extends outward to form a water retaining eaves. By providing a surrounding overflow protection net at the lower end of the water retaining eaves, the protection net can prevent liquid from overflowing and flowing into the fire hole. The overflow protection net is provided with heat dissipation holes. The provision of the heat dissipation holes prevents the temperature inside the overflow protection net from being too high when combustion occurs in the combustion zone, which would cause the fire cover to be overheated and cause the fire cover porcelain film to discolor and burst. The provision of the overflow protection net prevents overflow while improving the heat dissipation capacity of the fire cover.

Description

Technical Field

[0001] The present invention relates to the field of stove burners, in particular to a fire cover and a burner. Background Art

[0002] As a household appliance, gas stoves are commonly used in daily life, and the fire cover is one of the important components of gas stoves. The fire cover is pressed on the upper part of the burner and fits closely with the burner to form a whole to complete the combustion process.

[0003] Existing burners generally use a traditional fire cover structure. The traditional fire cover structure has an annular side wall with fire holes arranged along the circumference of the side wall. When the stove burner is in use, overflow is very common. If the amount of overflow is slightly large, the liquid will flow onto the fire cover, flow along the top of the stove fire cover to the annular side wall, and then flow into the fire hole, causing the fire hole to be blocked, affecting the normal use of the fire cover. Therefore, the design of the fire cover is particularly important. The existing technology uses a downward-extending baffle around the fire cover to prevent overflow from clogging the fire hole. However, the use of the baffle causes the temperature inside the baffle to be too high, affecting the heat dissipation of the burner, causing the fire cover to overheat and cause the fire cover porcelain film to discolor and burst. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art such as liquid overflow blocking the fire hole and poor heat dissipation of the fire cover, and to provide a fire cover and a burner.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides a fire cover, which includes a fire cover body and a cover body covering the fire cover body. The periphery of the cover body extends outward to form a water retaining eaves. The lower end of the water retaining eaves is provided with a surrounding overflow protection net, and the overflow protection net is provided with heat dissipation holes.

[0007] In this technical solution, the periphery of the cover extends outward to form a water retaining canopy. A surrounding overflow protection net is installed at the lower end of the water retaining canopy to prevent liquid from overflowing and flowing into the fire hole. Heat dissipation holes are provided in the overflow protection net. These heat dissipation holes prevent the temperature inside the overflow protection net from overheating during combustion in the combustion zone, which could cause the fire cover's ceramic film to discolor or crack. The overflow protection net prevents overflow while improving the fire cover's heat dissipation capacity.

[0008] Preferably, the top of the water retaining eaves extends upward to form a convex ring, and the convex ring and the top surface of the cover body form a liquid storage tank.

[0009] In this technical solution, the convex ring extending upward from the top of the water retaining eaves and the top surface of the cover form a liquid storage tank. The setting of the liquid storage tank can hold the overflowed liquid when the overflow amount is small, thereby reducing the possibility of liquid overflow.

[0010] Preferably, the end surface of the convex ring is smoothly connected to the top surface of the cover body.

[0011] In this technical solution, the end surface of the convex ring is smoothly connected to the top surface of the cover body. When the liquid overflows from the top surface of the cover body, it can prevent the liquid from overflowing suddenly and facilitate the liquid to be discharged.

[0012] Preferably, one side of the convex ring is recessed downward to form a guide groove, and the guide groove is inclined downward from the center of the cover body to the outer edge of the cover body.

[0013] In this technical solution, one side of the convex ring is recessed downward to form a guide groove. When the liquid overflows, it can flow out through the guide groove, so that the liquid in the liquid storage tank can flow out on one side. The guide groove is recessed from the center of the cover body to the outer edge of the cover body, making the liquid overflow more directional and easier to flow out.

[0014] Preferably, a tension breaking groove is provided in the guide groove, and the diameter of the tension breaking groove gradually decreases from top to bottom along the height direction of the cover body.

[0015] In this technical solution, a tension-breaking groove is provided in the diversion groove. This prevents overflow liquid from forming a high liquid level in the diversion groove, but allows it to flow smoothly and steadily, thus reducing the diversion pressure at the diversion groove. This prevents the overflow liquid from flowing out in large quantities after reaching a certain height due to surface tension. The diameter of the tension-breaking groove gradually decreases from top to bottom along the height of the cover body. A sufficient amount of overflow liquid, under the combined effects of gravity and wall adhesion, breaks the influence of the overflow liquid's surface tension and flows down the tension-breaking groove.

[0016] Preferably, the lower end surface of the overflow protection net located at the lower end of the guide groove protrudes downward.

[0017] In this technical solution, the lower end surface of the overflow protection net located at the lower end of the guide groove protrudes downward, so that the overflow protection net at the lower end of the guide groove can block and protect the liquid from dripping to the inside and below of the overflow protection net to the greatest extent.

[0018] Preferably, the water retaining eaves further include an ignition needle brim protruding outwardly along the peripheral wall of the water retaining eaves, and the ignition needle brim is used to cover the ignition needle.

[0019] In this technical solution, the water retaining eaves also include an ignition needle brim protruding outward along the peripheral wall of the water retaining eaves. The ignition needle brim can protect the ignition needle hidden under the ignition needle brim and prevent liquid from flowing onto the ignition needle.

[0020] Preferably, the lower end surface of the overflow protection net located at the lower end of the ignition needle brim is recessed upward.

[0021] In this technical solution, the lower end surface of the overflow protection net located at the lower end of the ignition needle brim is recessed upward, so that the overflow moves along the lower end surface of the overflow protection net in a direction away from the ignition needle brim under the action of gravity, so that the overflow can stay away from the ignition needle and ensure the success rate of ignition.

[0022] Preferably, fire holes are distributed circumferentially on the side wall of the fire cover body, and the fire holes are located inside the overflow protection net, with a gap between the fire holes and the overflow protection net.

[0023] In this technical solution, fire holes are distributed circumferentially on the side wall of the fire cover body. The fire holes are arranged on the fire cover body and are located on the inner side of the overflow protection net. There is a gap between the fire holes and the overflow protection net, so that overflow is not easy to flow into the fire holes.

[0024] Preferably, the side wall of the fire cover body further includes flame stabilizing holes distributed along the circumferential direction, the flame stabilizing holes are arranged above the fire hole, and the extension lines of the flame stabilizing holes extend to the overflow protection net.

[0025] In this technical solution, the side wall of the fire cover body includes flame stabilizing holes distributed along the circumferential direction, and the extension lines of the flame stabilizing holes extend to the overflow protection net, so that the flame stabilizing holes are opposite to the overflow protection net. On the one hand, the shielding effect of the overflowing liquid is better. On the other hand, the flame of the flame stabilizing hole is directly sprayed onto the overflow protection net, forming a blunt body flame stabilizing structure, which makes the flame stabilizing effect better and the flame more stable.

[0026] Preferably, there are a plurality of heat dissipation holes, and the plurality of heat dissipation holes are distributed along the circumference of the overflow protection net.

[0027] In this technical solution, a plurality of heat dissipation holes are distributed along the circumference of the overflow protection net, so that heat can be dissipated along the circumference of the fire cover body.

[0028] Preferably, the spill protection net is made of metal.

[0029] In this technical solution, the overflow protection net is made of metal. When liquid overflows and flows onto the overflow protection net, the metal overflow protection net will be quickly heated to a high temperature by the flame, the overflow will be quickly evaporated and gasified, and the solid stains will be carbonized. The fire cover has a certain self-cleaning ability and will not affect the normal use of the fire cover.

[0030] The present invention also provides a burner, comprising the fire cover as described above.

[0031] In this technical solution, the burner includes the aforementioned fire cover, which can be directly applied in the burner.

[0032] The positive and progressive effects of the present invention are as follows: the periphery of the cover extends outward to form a water retaining canopy. A surrounding overflow protection net is provided at the lower end of the water retaining canopy to prevent liquid from overflowing and flowing into the fire hole. The overflow protection net is provided with heat dissipation holes. These heat dissipation holes prevent the temperature inside the overflow protection net from overheating during combustion in the combustion zone, which could cause the fire cover's ceramic film to discolor and crack. The overflow protection net prevents overflow while improving the heat dissipation capacity of the fire cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of a fire cover according to a preferred embodiment of the present invention.

[0034] Figure 2 It is a front view of a fire cover according to a preferred embodiment of the present invention.

[0035] Figure 3 This is a schematic structural diagram of a fire cover according to a preferred embodiment of the present invention.

[0036] Figure 4 Rear view of the fire cover according to the preferred embodiment of the present invention.

[0037] Description of reference numerals:

[0038] Fire cover body 1

[0039] Cover 2

[0040] Water retaining eaves 3

[0041] Spill protection net 4

[0042] Heat dissipation holes 41

[0043] Raised ring 5

[0044] Liquid storage tank 6

[0045] Diversion trough 7

[0046] Tension breaking groove 8

[0047] Ignition needle brim 9

[0048] Fire hole 10

[0049] Flame stabilizing hole 11 DETAILED DESCRIPTION

[0050] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0051] like Figure 1As shown, the present invention provides a fire cover, which includes a fire cover body 1 and a cover body 2 covering the fire cover body 1. The periphery of the cover body 2 extends outward to form a water retaining eave 3. The lower end of the water retaining eave 3 is provided with a surrounding overflow protection net 4. The overflow protection net 4 is provided with heat dissipation holes 41. In this embodiment, there are multiple heat dissipation holes 41, and the multiple heat dissipation holes 41 are distributed along the circumference of the overflow protection net 4.

[0052] The periphery of the cover body 2 extends outward to form a water retaining eaves 3. A surrounding overflow protection net 4 is provided at the lower end of the water retaining eaves 3, so that the protection net can prevent liquid from overflowing and flowing into the fire hole 10. Heat dissipation holes 41 are provided on the overflow protection net 4. The setting of the heat dissipation holes 41 prevents the temperature inside the overflow protection net 4 from being too high when the combustion area is burning, causing the temperature of the fire cover to be too high and the porcelain film of the fire cover to discolor and burst. The setting of the overflow protection net 4 prevents overflow while improving the heat dissipation capacity of the fire cover. Multiple heat dissipation holes 41 are distributed along the circumference of the overflow protection net 4, so that the circumference of the fire cover body 1 can dissipate heat. In this embodiment, the heat dissipation holes 41 are evenly distributed circumferentially on the overflow protection net 4.

[0053] like Figure 1 As shown, the top of the water retaining eaves 3 extends upward to form a convex ring 5, and the convex ring 5 and the top surface of the cover body 2 form a liquid storage tank 6. The end surface of the convex ring 5 is smoothly connected to the top surface of the cover body 2.

[0054] The raised ring 5 extending upward from the top of the water retaining eave 3 forms a liquid storage groove 6 with the top surface of the cover 2. The provision of the liquid storage groove 6 can contain the overflowed liquid when the amount of overflow is small, thereby reducing the possibility of liquid overflow. The end surface of the raised ring 5 is smoothly connected to the top surface of the cover 2. When liquid overflows from the top surface of the cover 2, it can prevent the liquid from suddenly overflowing and facilitate the drainage of the liquid.

[0055] like Figures 1 to 3 As shown, one side of the convex ring 5 is concave downward to form a guide groove 7, which is inclined downward from the center of the cover 2 to the outer edge of the cover 2, that is, the guide groove 7 forms a downward slope from the inside to the edge, which is easy to guide the liquid. Figure 1 and Figure 2 As shown, a tension breaking groove 8 is provided in the guide groove 7, and the diameter of the tension breaking groove 8 gradually decreases from top to bottom along the height direction of the cover body 2. In this embodiment, there are two tension breaking grooves. The guide groove 7 is provided on the outside of the overflow protection net 4 and at the edge of the cover body 2, as far away from the overflow protection net 4 as possible. Figure 2 As shown, the lower end surface of the overflow protection net 4 located at the lower end of the guide groove 7 is convex downward, and the overflow protection net 4 located at the lower end of the guide groove 7 forms a shape that is long in the middle and short on both sides.

[0056] Among them, one side of the convex ring 5 is recessed downward to form a guide groove 7. When the liquid overflows, it can flow out through the guide groove 7, so that the liquid in the liquid storage tank 6 can flow out on one side. The guide groove 7 is recessed from the center of the cover body 2 to the outer edge of the cover body 2, making the liquid overflow more directional and easier to flow out. A tension breaking groove 8 is provided in the guide groove 7. The setting of the tension breaking groove 8 prevents the overflow from forming a very high liquid level in the guide groove 7, but instead allows the overflow to remain smoothly, reducing the diversion pressure at the guide groove 7. This prevents the overflow from flowing out in large quantities after reaching a certain height due to the surface tension of the overflow; the diameter of the tension breaking groove 8 gradually decreases from top to bottom along the height direction of the cover body 2, and a sufficient amount of overflow breaks the influence of the overflow surface tension under the combined action of gravity and the wall effect, thereby flowing down along the tension breaking groove 8. The lower end surface of the overflow protection net 4 located at the lower end of the guide groove 7 protrudes downward, so that the overflow protection net 4 at the lower end of the guide groove 7 can block and protect the liquid from dripping onto the inner side and below the inner side of the overflow protection net 4 to the greatest extent.

[0057] like Figure 3 and Figure 4 As shown, the water retaining eaves 3 also includes an ignition needle cap eaves 9 protruding outward along the peripheral wall of the water retaining eaves 3, and the ignition needle cap eaves 9 is used to cover the ignition needle. Figure 4 As shown, the lower end surface of the overflow protection net 4 located at the lower end of the ignition needle brim 9 is recessed upward. The overflow protection net 4 located at the lower end of the ignition needle brim 9 forms a shape that is short in the middle and long on both sides.

[0058] The water retaining eaves 3 also includes an ignition needle cap brim 9 that protrudes outward along the peripheral wall of the water retaining eaves 3. The ignition needle cap brim 9 can protect the ignition needle hidden under the ignition needle cap brim 9 and prevent liquid from flowing onto the ignition needle. The lower end surface of the overflow protection net 4 located at the lower end of the ignition needle cap brim 9 is recessed upward, so that the overflow liquid moves along the lower end surface of the overflow protection net 4 in a direction away from the ignition needle cap brim 9 under the action of gravity, so that the overflow liquid can be kept away from the ignition needle, ensuring the success rate of ignition.

[0059] like Figure 2 and Figure 3 As shown, the sidewall of the fire cover body 1 is circumferentially distributed with flame holes 10. These are located inside the overflow protection net 4, with a gap between them. The sidewall of the fire cover body 1 also includes circumferentially distributed flame stabilization holes 11, positioned above the flame holes 10. The extension lines of the flame stabilization holes 11 extend to the overflow protection net 4. Specifically, the overflow protection net 4 is made of metal.

[0060] Among them, fire holes 10 are distributed circumferentially on the side wall of the fire cover body 1. The fire holes 10 are arranged on the fire cover body 1 and are located on the inner side of the overflow protection net 4. There is a gap between the fire holes 10 and the overflow protection net 4, so that the overflow is not easy to flow into the fire holes 10. The side wall of the fire cover body 1 includes flame stabilizing holes 11 distributed along the circumference. The extension line of the flame stabilizing hole 11 extends to the overflow protection net 4, so that the flame stabilizing hole 11 offsets the overflow protection net 4. On the one hand, the shielding effect of the overflowing liquid is better. On the other hand, the flame of the flame stabilizing hole 11 is directly sprayed onto the overflow protection net 4, forming a blunt body flame stabilizing structure, which makes the flame stabilizing effect better and the flame more stable. The overflow protection net 4 is made of metal. When liquid overflows and flows onto the overflow protection net 4, the metal overflow protection net 4 will be quickly heated to a high temperature by the flame, the overflow will be quickly evaporated and gasified, and the solid stains will be carbonized. The fire cover has a certain self-cleaning ability and will not affect the normal use of the fire cover.

[0061] In this embodiment, the present invention further provides a burner, which includes the aforementioned fire cover. The fire cover can be directly applied in the burner.

[0062] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A fire cover, comprising a fire cover body and a cover body covering the fire cover body, characterized in that: The periphery of the cover body extends outward to form a water retaining eaves, the lower end of the water retaining eaves is provided with a surrounding overflow protection net, and the overflow protection net is provided with heat dissipation holes; The top of the water retaining eaves extends upward to form a convex ring, and the convex ring and the top surface of the cover body form a liquid storage groove. One side of the convex ring is recessed downward to form a guide groove, and the guide groove is inclined downward from the center of the cover body to the outer edge of the cover body. A tension breaking groove is provided in the guide groove, and the diameter of the tension breaking groove gradually decreases from top to bottom along the height direction of the cover body. The lower end surface of the overflow protection net located at the lower end of the guide groove is convex downward; The water retaining eaves also include an ignition needle brim protruding outward along the peripheral wall of the water retaining eaves, the ignition needle brim is used to cover the ignition needle, and the lower end surface of the overflow protection net located at the lower end of the ignition needle brim is recessed upward.

2. The fire cover according to claim 1, wherein: The end surface of the convex ring is smoothly connected to the top surface of the cover body.

3. The fire cover according to claim 1, wherein: Fire holes are distributed circumferentially on the side wall of the fire cover body. The fire holes are located inside the overflow protection net, and there is a gap between the fire holes and the overflow protection net.

4. The fire cover according to claim 3, characterized in that The side wall of the fire cover body further includes flame stabilizing holes distributed along the circumferential direction. The flame stabilizing holes are arranged above the fire hole, and the extension lines of the flame stabilizing holes extend to the overflow protection net.

5. The fire cover according to claim 1, wherein: There are multiple heat dissipation holes, and the multiple heat dissipation holes are distributed along the circumference of the overflow protection net.

6. The fire cover according to claim 1, wherein: The overflow protection net is made of metal.

7. A burner, characterized in that: The burner comprises the fire cover of claim 1 .

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