Gas distribution disc structure and gas stove

Abstract

The application discloses a gas distribution disc structure and a gas stove. The gas distribution disc comprises an upper cover assembly and a lower cover assembly. The upper cover assembly comprises a gas distribution cup and a center pipe. A gas distribution chamber is formed in the gas distribution cup. A through hole is arranged at the center of the bottom wall of the gas distribution chamber. The bottom of the center pipe is connected with the through hole. Upper connecting holes are arranged on the bottom wall of the gas distribution chamber in a circumferential interval. The lower cover assembly comprises a gas collecting disc and a plurality of flow guide pipes. Lower connecting holes are arranged on the gas collecting disc in a circumferential interval. The upper ends of the flow guide pipes are connected with the corresponding upper connecting holes, and the lower ends of the flow guide pipes are connected with the corresponding lower connecting holes. The structure is simple, and the cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a gas distribution plate structure and a gas cooker. Background Art

[0002] The gas distribution plate structure of the existing gas stove burner is mostly complex, costly, and difficult to guarantee performance. The gas distribution plate mostly adopts the following two structures:

[0003] First, the gas distributor is made of cast iron or cast steel. Due to the limitations of the casting process, it is difficult to make a thin-walled gas distributor. Therefore, the gas distributor produced by casting is large in size and heavy in weight, which is not conducive to lightweighting. In addition, cast iron parts are easily oxidized, especially in high temperature environments, and are prone to corrosion and peeling, which affects their use. In addition, the casting process is prone to pollution and has an impact on the surrounding environment.

[0004] 2. The gas distribution plate is made of die-cast aluminum inlaid with copper alloy. The production process is complicated. Since the melting point of aluminum alloy is relatively low, about 660℃, but the temperature at the fire hole reaches 600-800℃ when the gas is burned, the aluminum alloy will melt and deform when used under high temperature conditions for a long time, affecting its performance. In addition, due to the use of non-ferrous precious metal copper, the cost is often high. Summary of the Invention

[0005] The present invention aims to solve one of the problems existing in the existing related technologies to at least a certain extent. To this end, one object of the present invention is to provide a gas distribution plate structure with a simple structure and low cost.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A gas distributor plate structure, the gas distributor plate comprising an upper cover assembly and a lower cover assembly, wherein the upper cover assembly comprises a gas distributor cup and a central tube, a gas distributor chamber is formed within the gas distributor cup, a through hole is provided at the center of the bottom wall of the gas distributor chamber, the bottom of the central tube is connected to the through hole, and upper connecting holes are provided on the periphery of the through hole and on the bottom wall of the gas distributor chamber at intervals along the circumferential direction;

[0008] The lower cover assembly includes an air collecting plate and several guide pipes. The air collecting plate is provided with lower connecting holes spaced apart along the circumference. The upper ends of the guide pipes are connected to the corresponding upper connecting holes, and the lower ends are connected to the corresponding lower connecting holes.

[0009] In some embodiments, a first rib is provided on the outer wall of the central tube near its lower end, and the lower end of the central tube passes through the through hole and is riveted to the bottom surface of the gas separator cup, and the first rib rests on the bottom wall of the gas separator chamber.

[0010] In some embodiments, a second rib is provided on the outer wall of the central tube above the first rib, the outer wall of the gas separator cup is recessed inward and forms a raised portion on the side wall of the gas separator chamber, and the top of the second rib is flush with the top of the raised portion.

[0011] In some embodiments, a fire cover is provided in the gas distribution chamber, and the fire cover is supported on the second rib and the protrusion.

[0012] In some embodiments, the fire cover is a honeycomb body formed by winding metal strips;

[0013] Alternatively, the fire cover is a honeycomb body formed by sintering ceramics;

[0014] Alternatively, the fire cover includes a combustion mesh and a pad, and the combustion mesh is arranged on the pad.

[0015] In some embodiments, an inner decorative ring is provided on the top of the central tube, and the inner decorative ring fixes the fire cover in the gas distribution chamber;

[0016] An outer decorative ring is provided on the top of the gas separation cup, and the outer decorative ring fixes the fire cover in the gas separation chamber.

[0017] In some embodiments, an upper rib is provided on the outer wall of the guide tube near its upper end, and the upper end of the guide tube is fixed to the bottom wall of the gas separation chamber by reverse rivet after passing through the upper connecting hole, and the upper rib rests on the bottom surface of the gas separation cup.

[0018] In some embodiments, a hollow boss extending upward is provided on the edge of the lower connecting hole, and a mounting hole is provided on the top of the hollow boss. The lower end of the guide tube passes through the mounting hole and is riveted to the inner wall of the hollow boss, and the lower rib rests on the top of the hollow boss.

[0019] In some embodiments, the gas separator cup and the gas collecting plate are made by stretching and stamping a metal plate.

[0020] Another object of the present invention is to provide a gas cooker with a simple structure and low cost.

[0021] The above purpose is achieved through the following technical solutions:

[0022] A gas cooker has the gas distribution plate structure as described above.

[0023] Compared with the prior art, the present invention has at least the following beneficial effects:

[0024] 1. The gas distribution plate structure and gas cooker of the present invention have a simple structure and are conducive to mass production to achieve the purpose of reducing costs.

[0025] 2. In addition, the performance of the gas distribution plate structure is more reliable and has a longer service life, which is conducive to improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional schematic diagram of a gas distribution plate in an embodiment of the present invention;

[0027] Figure 2 1 is an exploded schematic diagram of a gas distribution plate according to an embodiment of the present invention;

[0028] Figure 3 It is a partial exploded view of the gas distribution plate in an embodiment of the present invention;

[0029] Figure 4 is a cross-sectional schematic diagram of a gas distribution plate in an embodiment of the present invention;

[0030] Figure 5 2 is a diagram showing the use status of the gas distribution plate in an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacements of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed in the present invention.

[0032] Example 1: Figures 1 to 5 As shown, this embodiment provides a gas distribution plate structure, the gas distribution plate includes an upper cover assembly and a lower cover assembly, wherein the upper cover assembly includes a gas distribution cup 1 and a center tube 2, a gas distribution chamber 100 is formed in the gas distribution cup 1, a through hole 101 is provided in the center of the bottom wall of the gas distribution chamber 100, the bottom of the center tube 2 is connected to the through hole 101, and upper connecting holes 102 are provided on the periphery of the through hole 101 and on the bottom wall of the gas distribution chamber 100 at intervals along the circumferential direction. Preferably, the gas distribution cup 1 is a cylindrical cup structure, and is made of stainless steel sheet by deep drawing and stamping;

[0033] The lower cover assembly includes an air collecting plate 3 and several guide tubes 4. The air collecting plate 3 is provided with lower connecting holes 301 distributed at intervals along the circumference. The upper ends of the guide tubes 4 are connected to the corresponding upper connecting holes 102, and the lower ends are connected to the corresponding lower connecting holes 301.

[0034] The gas distribution plate structure of this embodiment is simple in structure and is conducive to mass production, thereby achieving the purpose of reducing costs.

[0035] Preferably, a first rib 201 is provided on the outer wall of the center tube 2 near its lower end. The lower end of the center tube 2 passes through the through hole 101 and is riveted to the bottom surface of the gas separator cup 1, and the first rib 201 rests on the bottom wall of the gas separator chamber 100. It has a simple structure and is easy to manufacture, which is conducive to connecting the center tube 2 and the gas separator cup 1 into one.

[0036] More preferably, a second rib 202 is provided on the outer wall of the central tube 2 above the first rib 201. The outer wall of the gas-distributing cup 1 is recessed inward to form a raised portion 103 on the side wall of the gas-distributing chamber 100. The raised portions 103 include a plurality of raised portions 103, which are staggered with the upper connecting holes 102. The top of the second rib 202 is flush with the top of the raised portion 103. Furthermore, a fire cover 5 is provided within the gas-distributing chamber 100 and supported on the second rib 202 and the raised portion 103. This simple structure and rational and ingenious design facilitate installation and fixation of the fire cover 5.

[0037] Specifically, the center tube 2 is a hollow stainless steel tube, and two ribs are spun on one end thereof, namely the first rib 201 and the second rib 202. The distance between the first rib 201 and the second rib 202 is consistent with the height of the raised portion 103 on the cylindrical circumferential surface of the gas dividing cup 1; the straight tube part under the first rib 201 of the center tube 2 is inserted from the upper end of the gas dividing cup 1 into the bottom center circular through hole 101, and riveted flat, so that the gas dividing cup 1 and the center tube 2 are fixedly connected as one to form an upper cover assembly of the gas dividing plate. After assembly, the upper end face of the second rib 202 of the center tube 2 and the top end face of the raised portion 103 on the cylindrical circumferential surface of the gas dividing cup 1 are in the same plane. When the fire cover 5 is installed, the bottom surface of the fire cover 5 and its contact are in the same plane, and the second rib 202 and the raised portion 103 play a role of balanced support.

[0038] In this embodiment, the fire cover 5 is a honeycomb body formed by winding metal strips, the diameter of the fire holes is 0.7 to φ0.9 mm, the thickness is 8 to 12 mm, the combustion mode is flameless infrared combustion, and the flame length is short or even flameless;

[0039] Alternatively, the fire cover 5 is a honeycomb body made of sintered ceramics, with a fire hole diameter of about 1.2 mm and a thickness of about 10 mm. The combustion method is flameless infrared combustion, and the flame length is short or even flameless.

[0040] Alternatively, the fire cover 5 includes a combustion mesh and a pad. The combustion mesh is arranged on the pad. The diameter of the fire hole is about 1.5 mm and the thickness is about 3 mm. The combustion mode is atmospheric combustion and the flame has a certain length.

[0041] Preferably, an inner decorative ring 6 is provided on the top of the central tube 2, and the inner decorative ring 6 fixes the fire cover 5 in the gas distribution chamber 100;

[0042] An outer decorative ring 7 is provided on the top of the gas distribution cup 1, and the outer decorative ring 7 fixes the fire cover 5 in the gas distribution chamber 100. The inner decorative ring 6 and the outer decorative ring 7 can improve the overall appearance of the gas distribution plate, which is conducive to improving the product grade. In addition, the inner decorative ring 6 and the outer decorative ring 7 can fix the fire cover 5 and prevent it from loosening or falling off easily.

[0043] In this embodiment, the fire cover 5 is a block-shaped cylindrical body with a straight through hole in the middle. The aperture size matches or is slightly larger than the outer diameter of the central tube 2. The outer diameter of the fire cover 5 matches or is slightly smaller than the inner diameter of the gas separator cup 1. A large number of fire holes are distributed between the cylindrical surface of the fire cover 5 and the straight through hole in the middle.

[0044] Preferably, the outer decorative ring 7 is a thin-walled cover plate, cylindrical, with a short eave folded inward at one end, the inner diameter of the cylindrical shape is tightly matched with the outer diameter of the gas separator cup 1, and the short eaves cover the upper end surface of the gas separator cup 1; the inner decorative ring 6 is a cylindrical thin-walled part, with a short side folded outward at one end, the outer diameter of the cylindrical shape is tightly matched with the inner diameter of the central tube 2, and the folded short side covers the outer edge of the upper end surface of the central tube 2; when assembling, the central cylindrical hole of the fire cover 5 is slid into the gas separator cup 1 of the gas separator assembly along the outer cylindrical surface of the central tube 2, so that the lower end surface of the fire cover 5 is aligned with the second rib 2 02. The top surface of the raised portion 103 is flat, and the inner decorative ring 6 is pressed into the central tube 2, and the outer decorative ring 7 is pressed into the gas dividing cup 1. In this way, the fire cover 5 can be fixed in the gas dividing chamber 100. The mixed gas enters the gas dividing chamber 100 of the gas dividing cup 1 from the guide tube 4 around the bottom of the lower cover assembly, and is then ejected from the fire hole of the fire cover 5, ignited and burned, forming a straight flame. When burning, the flame is vertically upward, which reduces the distance between the flame and the bottom of the pot, which is conducive to more heat directly heating the bottom of the pot, thereby improving the utilization rate of heat.

[0045] Preferably, an upper rib 401 is provided on the outer wall of the guide tube 4 near its upper end. The upper end of the guide tube 4 passes through the upper connecting hole 102 and is fixed to the bottom wall of the gas separation chamber 100 by reverse rivet, and the upper rib 401 rests on the bottom surface of the gas separation cup 1. It has a simple structure and is easy to manufacture, which is conducive to connecting the guide tube 4 and the gas separation cup 1 into one.

[0046] More preferably, a lower rib 402 is provided on the outer wall of the guide tube 4 near its lower end, a hollow boss 302 extending upward is provided on the edge of the lower connecting hole 301, and a mounting hole 303 with a diameter smaller than the diameter of the hollow boss 302 is provided at the top center of the hollow boss 302, and the diameter of the mounting hole 303 is consistent with the diameter of the upper connecting hole 102, and the position is also corresponding. After the lower end of the guide tube 4 passes through the mounting hole 303, it is riveted to the inner wall of the hollow boss 302, and the lower rib 402 rests on the top of the hollow boss 302. It has a simple structure and is easy to manufacture, which is conducive to connecting the guide tube 4 and the gas collecting plate 3 into one.

[0047] Preferably, the gas distributor cup 1 and the gas collecting plate 3 are made by stretching and stamping metal plates.

[0048] In this embodiment, the gas collecting plate 3 is a thin-walled disc-shaped member, manufactured by stretching and stamping stainless steel sheet. It has a hollow upper end and a closed lower end, with a hollow cylindrical body 304 formed in the center of the closed end. The flow guide tube 4 is a hollow, straight stainless steel tube with an outer diameter that matches the diameters of the mounting hole 303 in the gas collecting plate 3 and the upper connecting hole 102 at the bottom of the gas distributor cup 1. A convex rib is pressed onto each end of the flow guide tube 4, namely an upper convex rib 401 and a lower convex rib 402. The lower end of the flow guide tube 4 is inserted from the upper end of the gas collecting plate 3 into the mounting hole 303 of the hollow boss 302. The end face of the lower convex rib 402 of the flow guide tube is flush with the upper end face of the hollow boss 302 and riveted flat. The remaining flow guide tubes are similarly arranged. In this way, the several flow guide tubes 4 can be fixedly connected to the gas collecting plate 3 as a whole to form a gas distributor plate lower cover assembly. The upper end of each flow guide tube 4 of the gas distributor plate lower cover assembly is inserted into the upper connecting hole 102 at the bottom of the gas distributor cup 1 of the gas distributor plate upper cover assembly. The end face of the upper convex rib 401 of the flow guide tube 4 is flush with the bottom end face of the gas distributor cup 1 and riveted flat to form the gas distributor plate assembly of the present invention. Finally, nickel-based solder is applied to each riveted flat area, and the whole is placed in a vacuum high-temperature furnace for brazing to form a gas distributor plate with a solid structure.

[0049] like Figure 5 As shown, during assembly, the large and small cylindrical surfaces of the gas collecting plate 3 of the gas distribution plate assembly are sealed with the two cylindrical surfaces of the inner ring chamber of the burner to form a gas collecting cavity. The mixed gas from the burner ejector tube enters the gas collecting cavity of the gas distribution plate from the inner ring chamber of the burner, and then from the gas collecting cavity through the guide tube 4 to the gas distribution chamber 100 formed between the gas distribution cup 1 and the center tube 2. A certain static pressure is formed under the shielding effect of the fire cover 5. The mixed gas enters the various air channels of the fire cover evenly under the action of the static pressure and burns at the periphery of the fire cover 5.

[0050] The gas distribution plate structure provided by the present invention is integrated by stretching, stamping, riveting and brazing of sheet metal parts. The gas distribution plate manufactured by this method has a strong structure and can withstand high-temperature corrosion for a long time. The product is lightweight, cost-effective, and has strong applicability. It is suitable for all gas stoves, has high promotion value, and is highly versatile.

[0051] Example 2: See Figures 1 to 5 As shown, this embodiment provides a gas cooker having the gas distribution plate structure described in the first embodiment.

[0052] The gas cooker of this embodiment has the characteristics of simple structure and low cost by adopting the gas distribution plate structure described in the first embodiment.

[0053] Other structures and operations of the gas cooker according to this embodiment are well known to those skilled in the art and will not be described here in detail to save space.

[0054] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A gas distribution plate structure, characterized in that: The gas distribution plate comprises an upper cover assembly and a lower cover assembly, wherein the upper cover assembly comprises a gas distribution cup (1) and a central tube (2), a gas distribution chamber (100) is formed in the gas distribution cup (1), a through hole (101) is provided at the center of the bottom wall of the gas distribution chamber (100), the bottom of the central tube (2) is connected to the through hole (101), the central tube (2) is a hollow stainless steel tube, and upper connecting holes (102) are provided on the periphery of the through hole (101) and on the bottom wall of the gas distribution chamber (100) at intervals along the circumferential direction; The lower cover assembly comprises an air collecting plate (3) and a plurality of flow guide tubes (4); lower connection holes (301) are provided on the air collecting plate (3) and are spaced apart along the circumference; the upper ends of the flow guide tubes (4) are connected to the corresponding upper connection holes (102), and the lower ends are connected to the corresponding lower connection holes (301); An upper rib (401) is provided on the outer wall of the flow guide tube (4) near its upper end. The upper end of the flow guide tube (4) passes through the upper connecting hole (102) and is fixed to the bottom wall of the gas separation chamber (100) by reverse riveting, and the upper rib (401) abuts against the bottom surface of the gas separation cup (1). A lower rib (402) is provided on the outer wall of the guide tube (4) near its lower end, a hollow boss (302) extending upward is provided on the edge of the lower connecting hole (301), a mounting hole (303) is provided on the top of the hollow boss (302), the lower end of the guide tube (4) passes through the mounting hole (303) and is then fixed to the inner wall of the hollow boss (302) by reverse riveting, and the lower rib (402) abuts against the top of the hollow boss (302).

2. The gas distribution plate structure according to claim 1, characterized in that: A first convex rib (201) is provided on the outer wall of the central tube (2) near its lower end. The lower end of the central tube (2) passes through the through hole (101) and is then fixed to the bottom surface of the gas separation cup (1) by reverse riveting, and the first convex rib (201) abuts against the bottom wall of the gas separation chamber (100).

3. The gas distribution plate structure according to claim 2, characterized in that: A second convex rib (202) is provided on the outer wall of the central tube (2) above the first convex rib (201); the outer wall of the gas separation cup (1) is recessed inward and forms a raised portion (103) on the side wall of the gas separation chamber (100); the top of the second convex rib (202) is flush with the top of the raised portion (103).

4. The gas distribution plate structure according to claim 3, characterized in that: A fire cover (5) is provided in the gas distribution chamber (100), and the fire cover (5) is supported on the second rib (202) and the raised portion (103).

5. The gas distribution plate structure according to claim 4, characterized in that: The fire cover (5) is a honeycomb body formed by winding metal strips; Alternatively, the fire cover (5) is a honeycomb body formed by sintering ceramics; Alternatively, the fire cover (5) comprises a combustion mesh and a pad, and the combustion mesh is arranged on the pad.

6. The gas distribution plate structure according to claim 5, characterized in that: An inner decorative ring (6) is provided on the top of the central tube (2), and the inner decorative ring (6) fixes the fire cover (5) in the gas distribution chamber (100); An outer decorative ring (7) is provided on the top of the gas distribution cup (1), and the outer decorative ring (7) fixes the fire cover (5) in the gas distribution chamber (100).

7. A gas distribution plate structure according to any one of claims 1 to 6, characterized in that: The gas distribution cup (1) and the gas collecting plate (3) are made by stretching and stamping metal plates.

8. A gas cooker, characterized in that: It has a gas distribution plate structure as described in any one of claims 1 to 7.

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