Furnace core structure of external mixing type gas stove

By optimizing the structure of the external mixing gas stove's burner core and adopting sealing components and a hybrid design, the sealing problem has been solved, thereby improving the safety and efficiency of the gas stove.

CN224108246UActive Publication Date: 2026-04-10GUANGZHOU HENGCAI ENERGY SAVING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The existing external mixing gas stove's burner core structure has insufficient sealing, leading to gas leakage, resource waste, and safety hazards.

Method used

The design incorporates components such as connecting pipes, springs, extrusion blocks, friction plates, and rubber rings within the furnace core shell to form a sealing layer. Combined with a conical shroud and air inlet, this ensures thorough mixing of fuel gas and air, thereby improving combustion efficiency.

Benefits of technology

It effectively prevents gas leaks, saves gas resources, improves safety and combustion efficiency, reduces exhaust emissions, and improves environmental quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of cooking equipment, and discloses an external mixing type gas stove core structure which comprises a stove core shell, a connecting pipe is fixedly connected to the bottom end of the stove core shell, a gas inlet groove is formed in the stove core shell, and a fixing ring is fixedly connected to the position, located at the top end of the gas inlet groove, in the stove core shell. A first air inlet pipe is fixedly connected to the position, located at the air inlet groove, of the interior of the furnace core shell, a plurality of springs are fixedly connected to the interior of the bottom end of the connecting pipe, extrusion blocks are fixedly connected to one ends of the springs, limiting blocks are fixedly connected to the two ends of each extrusion block, and the outer surfaces of the extrusion blocks and the outer surfaces of the limiting blocks are movably connected to the interior of the connecting pipe; one end of the extrusion block is fixedly connected with a friction plate, the sealing performance of the connecting pipe can be effectively improved, gas is prevented from leaking along a gap between an external gas pipeline and the connecting pipe, resource waste is prevented, and the use safety is effectively improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to cooking equipment technical field especially relates to a kind of outer mixed formula gas stove core structure. BACKGROUND

[0002] As an important household equipment, gas stove is more and more popular in modern family. In recent years, with the enhancement of environmental awareness and the rising energy costs, manufacturers begin to focus on improving the efficiency and environmental performance of gas stove, especially in the case of the gradual popularization of outer mixed formula design, how to optimize its structure becomes a hot spot, and the outer mixed formula structure is favored due to its convenient operation and installation.

[0003] However, the sealing of the existing outer mixed formula gas stove core structure has defects, and the sealing problem not only leads to gas leakage, causing resource waste, but also may endanger the safety and environmental quality. INVENTION CONTENTS

[0004] The utility model discloses to the sealing of the existing outer mixed formula gas stove core structure has defects, and the sealing problem not only leads to gas leakage, causing resource waste, but also may endanger the safety and environmental quality, and the following technical solutions are proposed:

[0005] An outer mixed formula gas stove core structure, comprising a core shell, the bottom end of the core shell is fixedly connected with a connecting pipe, the inside of the core shell is provided with an air inlet groove, the inside of the core shell is fixedly connected with a fixed ring at the top end position of the air inlet groove, the inside of the core shell is fixedly connected with a first air inlet pipe at the position of the air inlet groove, the inside of the bottom end of the connecting pipe is fixedly connected with a plurality of springs, one end of the spring is fixedly connected with a pressing block, the both ends of the pressing block are fixedly connected with a limiting block, the outer surfaces of the pressing block and the limiting block are movably connected in the inside of the connecting pipe, one end of the pressing block is fixedly connected with a friction plate, and a rubber ring is bonded above the friction plate in the inside of the connecting pipe.

[0006] As the preferred, the inside of the core shell is provided with a mixing groove at the inside position of the fixed ring, the top end of the inside of the core shell is fixedly connected with a second air inlet pipe at the inside position of the connecting pipe, a plurality of air inlet holes are formed in the inside of the core shell at the outside position of the mixing groove, a clamping groove is formed in the inside of the core shell at the outside position of the mixing groove, a clamping block is clamped in the inside of the clamping groove, one end of the clamping block is fixedly connected with a conical cover, and the outer surface of the conical cover is movably connected in the inside of the core shell.

[0007] As the preferred, the diameter of the top end of the conical cover is greater than the diameter of the bottom end.

[0008] As the preferred, the bottom end of one end of the pressing block is formed as an inclined surface.

[0009] As the above-mentioned preferred, one end of the air inlet hole is communicated with the air inlet groove, and the other end of the air inlet hole is communicated with the mixing groove.

[0010] As the above-mentioned preferred, the center of the second air inlet pipe and the center of the conical cover are on the same vertical line.

[0011] As the above-mentioned preferred, the furnace core shell is further provided with a jig, the jig comprises a fence and a cover, and a groove matched with the jig is formed in the top of the furnace core shell.

[0012] The utility model discloses the beneficial effect is:

[0013] (1) can effectively improve the sealing of connecting pipe, avoid the leakage of gas along the gap between external gas pipeline and connecting pipe, prevent causing resource waste, effectively improve use safety.

[0014] (2) can make gas and air mix fully, effectively improve gas combustion efficiency, not only save gas resource, but also reduce the emission of waste gas, effectively improve environmental quality. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The overall structure schematic diagram of the furnace core structure of the external mixing type gas stove is shown.

[0016] Figure 2 The partial structure schematic diagram of the furnace core structure of the external mixing type gas stove is shown.

[0017] Figure 3 The installation structure schematic diagram of the fixed ring is shown.

[0018] Figure 4 The installation structure schematic diagram of the conical cover is shown.

[0019] Figure 5 The installation structure schematic diagram of the extrusion block is shown.

[0020] In the drawing: 1, furnace core shell, 2, connecting pipe, 3, air inlet groove, 4, fixed ring, 5, first air inlet pipe, 6, spring, 7, extrusion block, 8, limit block, 9, rubber ring, 10, mixing groove, 11, air inlet hole, 12, second air inlet pipe, 13, clamping groove, 14, clamping block, 15, conical cover, 16, friction plate, 17, jig, 171, fence, 172, cover. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the utility model technical scheme will be described clearly and completely below in conjunction with the embodiment.

[0022] Embodiment 1

[0023] The utility model provides a kind of outer mixing type gas stove core structure, as shown in Figures 1 to 5 It includes stove core shell 1, and the bottom end of stove core shell 1 is fixedly connected with connecting pipe 2, and the inside of stove core shell 1 is provided with air inlet groove 3, and the inside of stove core shell 1 is fixedly connected with fixed ring 4 at the top end position of air inlet groove 3, and the inside of stove core shell 1 is fixedly connected with first air inlet pipe 5 at the position of air inlet groove 3, and the inside of the bottom end of connecting pipe 2 is fixedly connected with multiple springs 6, and one end of spring 6 is fixedly connected with extrusion block 7, and the both ends of extrusion block 7 are fixedly connected with limit block 8, and the outer surfaces of extrusion block 7 and limit block 8 are movably connected in the inside of connecting pipe 2, and one end of extrusion block 7 is fixedly connected with friction plate 16, and rubber ring 9 is bonded in the inside of connecting pipe 2 at the position above friction plate 16.

[0024] As shown in Figures 2-4 The inside of stove core shell 1 is provided with mixing groove 10 at the inside position of fixed ring 4, and the top end of stove core shell 1 is fixedly connected with second air inlet pipe 12 at the inside position of connecting pipe 2, and the inside of stove core shell 1 is provided with multiple air inlets 11 at the outside position of mixing groove 10, and the inside of stove core shell 1 is provided with clamping groove 13 at the outside position of mixing groove 10, and clamping block 14 is clamped in the inside of clamping groove 13, and one end of clamping block 14 is fixedly connected with conical cover 15, and the outer surface of conical cover 15 is movably connected in the inside of stove core shell 1, when gas stove needs to be used, align clamping block 14 with clamping groove 13 by conical cover 15, then control conical cover 15 to move downwards, so that clamping block 14 is clamped into the inside of clamping groove 13, when internal gas of external gas pipeline enters the inside of mixing groove 10 along second air inlet pipe 12, air enters the inside of air inlet groove 3 synchronously through first air inlet pipe 5, then enters the inside of mixing groove 10 through air inlet 11, due to the action of conical cover 15, gas and air can be fully mixed, effectively improve gas combustion efficiency, not only save gas resources, but also reduce waste gas emission, effectively improve environmental quality.

[0025] As shown in Figures 2-4 The diameter of the top end of conical cover 15 is greater than the diameter of the bottom end, to ensure that gas and air below conical cover 15 are fully mixed, effectively improve gas combustion efficiency.

[0026] As shown in Figures 2-5 The bottom end of one end of extrusion block 7 is provided with inclined surface, to facilitate external gas pipeline to move along inclined surface smoothly, reduce resistance when contacting, improve moving rate.

[0027] As shown in Figures 2-4 One end of air inlet 11 is communicated with air inlet groove 3, and the other end of air inlet 11 is communicated with mixing groove 10, to ensure that air enters the inside of mixing groove 10 along air inlet 11, realize fully mixed with gas.

[0028] As Figures 2-4 shown, the second air inlet pipe 12 and the conical cover 15 are on the same vertical line, which ensures that the gas mixed with air is discharged along the bottom end of the conical cover 15, and the conical cover 15 can be used normally.

[0029] As Figure 1 shown, the furnace core shell 1 is further provided with a jig 17, which comprises a fence 171 and a cover 172, and the top of the furnace core shell 1 is provided with a groove matched with the jig 17. By arranging the jig 17 on the upper end of the furnace core shell 1, the cover 172 on the jig 17 can shield the flameout induction needle and the upper end of the kindling gas pipe, so as to avoid the influence of water flow on the normal induction of the flameout induction needle or the extinguishing of the fire at the upper end of the kindling gas pipe.

[0030] Working principle: during actual use, first, the connecting pipe 2 is aligned with the external gas pipeline, and the connecting pipe 2 is controlled to move towards the external gas pipeline, so that the external gas pipeline moves along the inside of the connecting pipe 2. With the movement of the external gas pipeline, the inclined surface of the extrusion block 7 is contacted and extruded, so that the extrusion block 7 exerts force on the spring 6, and the spring 6 is deformed to drive the extrusion block 7 to move inward, so that the external gas pipeline continues to move along the outer surface of the friction plate 16. With the slow movement of the external gas pipeline, the rubber ring 9 is contacted and extruded. Under the elastic action of the rubber ring 9, the outer surface of the rubber ring 9 is attached to the outer surface of the external gas pipeline, thereby forming a sealing layer. Due to the elastic force of the spring 6, the extrusion block 7 is driven to move towards the external gas pipeline, and the movement of the extrusion block 7 drives the synchronous movement of the friction plate 16, so that the friction plate 16 extrudes and fixes the outer surface of the external gas pipeline, which can effectively improve the sealing performance of the connecting pipe 2, avoid gas leakage between the external gas pipeline and the connecting pipe 2, prevent resource waste, and effectively improve the use safety.

[0031] Then when the gas stove needs to be used, the clamping block 14 is aligned with the clamping groove 13 by controlling the conical cover 15, and then the conical cover 15 is controlled to move downward, so that the clamping block 14 is clamped into the inside of the clamping groove 13. When the internal gas of the external gas pipeline enters the mixing groove 10 through the second air inlet pipe 12, the air enters the air inlet groove 3 through the first air inlet pipe 5 at the same time, and then enters the mixing groove 10 through the air inlet hole 11. Due to the action of the conical cover 15, the gas and air can be fully mixed, which effectively improves the gas combustion efficiency, saves gas resources, reduces waste gas emission, and effectively improves the environmental quality.

[0032] The above examples are only used to illustrate the technical solutions of the present application, but not to limit them.

Claims

1. A gas stove core structure with external mixing, characterized in that, The furnace core includes a furnace core shell (1), a connecting pipe (2) is fixedly connected to the bottom of the furnace core shell (1), an air inlet groove (3) is opened inside the furnace core shell (1), a fixing ring (4) is fixedly connected to the top of the air inlet groove (3) inside the furnace core shell (1), a first air inlet pipe (5) is fixedly connected to the air inlet groove (3) inside the furnace core shell (1), a plurality of springs (6) are fixedly connected to the bottom of the connecting pipe (2), a pressing block (7) is fixedly connected to one end of the spring (6), a limit block (8) is fixedly connected to both ends of the pressing block (7), the outer surfaces of the pressing block (7) and the limit block (8) are movably connected to the inside of the connecting pipe (2), a friction plate (16) is fixedly connected to one end of the pressing block (7), and a rubber ring (9) is adhered to the inside of the connecting pipe (2) above the friction plate (16).

2. The external mixing gas stove core structure according to claim 1, characterized in that: The furnace core shell (1) has a mixing groove (10) located inside the fixing ring (4). The top of the furnace core shell (1) is fixedly connected to a second air inlet pipe (12) located inside the connecting pipe (2). The furnace core shell (1) has multiple air inlets (11) located outside the mixing groove (10). The furnace core shell (1) has a slot (13) located outside the mixing groove (10). The slot (13) has a locking block (14) inside. One end of the locking block (14) is fixedly connected to a conical cover (15). The outer surface of the conical cover (15) is movably connected to the inside of the furnace core shell (1).

3. The external mixing gas stove core structure according to claim 2, characterized in that: The diameter of the top of the conical cover (15) is greater than the diameter of the bottom.

4. The external mixing gas stove core structure according to claim 1, characterized in that: The bottom of one end of the extrusion block (7) is sloped.

5. The external mixing gas stove core structure according to claim 2, characterized in that: One end of the air inlet (11) is connected to the air inlet groove (3), and the other end of the air inlet (11) is connected to the mixing groove (10).

6. The structure of an externally mixed gas stove core according to claim 2, characterized in that: The center of the second air intake pipe (12) and the center of the conical cover (15) are on the same vertical line.

7. The external mixing gas stove core structure according to claim 1, characterized in that: The furnace core shell (1) is also provided with a fixture (17), which includes a barrier (171) and a cover (172). The top of the furnace core shell (1) is provided with a groove that matches the fixture (17).