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Inner container pulling and riveting structure, manufacturing method thereof and steaming and baking machine

A manufacturing method and pull riveting technology, applied in the direction of connecting components, rivets, mechanical equipment, etc., can solve problems such as steam leakage, cracks, whitening, etc., and achieve the effect of convenient sealing

Pending Publication Date: 2022-03-22
GREE ELECTRIC APPLIANCES WUHAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, after the inner tank of the steam-baking machine is enamelled, the moment the rivets are tightened due to the strong impact force, the enamel layer on the surface of the inner tank will appear bursting, whitening, and cracks. Rivet nuts are difficult to implement in enamel liners
However, compared with the stainless steel liner, the enamel liner has a good appearance, does not change color after a long time of use, and is more hygienic, but the problems caused by the riveted nut prevent the large-scale promotion of the enamel liner
In addition, the steam generated during the operation of the inner container of household appliances is easy to leak from the gap between the riveting nut and the porcelain layer of the enamel inner container, resulting in easy leakage of rust water around the riveting screw

Method used

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  • Inner container pulling and riveting structure, manufacturing method thereof and steaming and baking machine
  • Inner container pulling and riveting structure, manufacturing method thereof and steaming and baking machine
  • Inner container pulling and riveting structure, manufacturing method thereof and steaming and baking machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The inner tank riveting structure disclosed in this embodiment, Figure 1-Figure 2 As shown, it includes a hole 1 and a riveting nut 2, the hole 1 runs through the substrate and the enamel layer 5 of the inner container 4 of the household appliance 3, the riveting nut 2 is embedded in the hole 1, that is, the riveting nut 2 is stable It is fixed inside the hole 1 so that the riveting nut 2 is arranged on the enamel layer 5 of the inner liner 4 . figure 2 As shown, the opening of the rivet nut 2 is turned outward to form a retaining edge 6, figure 2 As shown, the retaining edge 6 presses against the opening periphery of the hole 1 , and the opening periphery is the enamel layer 5 , that is, the retaining edge 6 presses against the enamel layer 5 at the opening periphery of the hole 1 . A washer 7 is sandwiched between the opening periphery of the hole 1 and the retaining edge 6, the washer 7 is set on the riveting nut 2, and the inner ring wall of the washer 7 seals t...

Embodiment 2

[0050] The difference between this embodiment and Embodiment 1 is that the surface of the enamel layer 5 protrudes outward by 1.1mm to form the boss 8, the thickness of the gasket 7 is 0.6mm, and the silicone gasket 7 is resistant to Temperature above 225°C, the Shore hardness of the silicone gasket 7 is 65°C, and the distance across the sides of the regular hexagon at the hole position 1 is preferably set to 7mm. Other components and principles of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

Embodiment 3

[0052] The difference between this embodiment and Embodiment 1 is that the surface of the enamel layer 5 protrudes outward by 1mm to form the boss 8, the thickness of the gasket 7 is 0.5mm, and the silicone gasket 7 is temperature-resistant. Above 225°C, the Shore hardness of the silicone gasket 7 is 60°C, and the distance across the sides of the regular hexagon at the hole position 1 is preferably set to 6.5mm. Other components and principles of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

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Abstract

The invention relates to the technical field of household appliances, in particular to an inner container pulling and riveting structure, a manufacturing method of the inner container pulling and riveting structure and a steaming and baking machine. The inner container pulling and riveting structure comprises a hole site and a riveting nut, the hole site penetrates through a base plate and an enamel layer of a household appliance inner container, and the riveting nut is embedded into the hole site; an opening of the riveting nut is turned outwards to form a blocking edge, the blocking edge abuts against the peripheral edge of the opening of the hole site, a gasket is clamped between the peripheral edge of the opening of the hole site and the blocking edge, the riveting nut is sleeved with the gasket, and the inner ring wall of the gasket wraps a gap between the riveting nut and the hole site in a sealed mode. The pulling and riveting structure of the inner container can prevent the enamel layer from cracking, whitening and cracking, and has the advantage of being good in sealing performance.

Description

technical field [0001] The invention relates to the technical field of home appliances, in particular to a riveting structure of an inner container, a manufacturing method thereof, and a steaming and roasting machine. Background technique [0002] At present, the inner tank of household appliances (such as ovens, steamers, or integrated steaming and baking machines) usually uses riveting to fix the riveting nuts, relying on the screw rod on the special riveting gun for riveting nuts to rotate and pull the riveting nuts, so that the riveting nuts undergo longitudinal compression. The thin-walled area at the end is convexly deformed, and the inner tank plate is clamped, thereby realizing the riveting process. Then, use screws to firmly connect other components on the outside of the liner (such as heating pipes, fans, lampshades, brackets, etc.) to the riveting nuts. At present, after the inner tank of the steam-baking machine is enamelled, the moment the rivets are tightened ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B19/10F16J15/10
CPCF16B19/1045F16J15/102
Inventor 王成根陈昌中秦海燕谭德强范召卿余国庆
Owner GREE ELECTRIC APPLIANCES WUHAN
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