Exhaust control device for energy-saving kettle

Abstract

The invention discloses an exhaust control device for an energy-saving kettle, comprising a ring-shaped suspending metal foil, a support sleeve and an exhaust hood. The top wall of the exhaust hood is provided with an upper flanging which is folded downwards and sleeved outside an inner kettle; the upper end of the support sleeve is sleeved on the upper flanging while the lower end thereof is a support rib; the ring-shaped suspending metal foil is sleeved outside the support sleeve and placed on the support rib; and the support sleeve is sleeved on an outer kettle. The invention improves the water-proof performance, the exhaust performance and the sensitivity of the exhaust control device and ensures a firmer structure. The exhaust hood has a plurality of functions of exhausting and preventing water and foreign matters as well as fixing the support sleeve, limiting, and the like, not only saves a limiting check ring, ensures that the structure of the exhaust control device is simple and compact, the processing is convenient and the cost is reduced, but also ensures that the working performance of the exhaust control device is more stable and reliable.

Description

technical field [0001] The invention relates to an exhaust control device for an energy-saving kettle. Background technique [0002] In the Chinese patent specification with the patent number ZL200610079629.5, an exhaust control device for an energy-saving kettle is disclosed (fifth embodiment). The exhaust control device is located on the heating layer (that is, on the annular exhaust port), and includes a limit stop ring, a support sleeve, and an annular suspendable metal foil, and realizes automatic control through the lifting of the annular suspendable metal foil. The metal foil is very light and thin, and it cannot be suspended when it is stained with water or foreign matter. For this reason, an exhaust hood is set above the exhaust control device to block water or foreign matter, especially to prevent water from overflowing from the spout of the pot and sticking to the metal foil when boiling, which will affect the next use without affecting the discharge of exhaust g...

AI Technical Summary

Problems solved by technology

However, the upper end of the exhaust cover is set outside the inner pot, and there is a gap between the two, and water can still flow down from the gap to the upper end of the limit retaining ring

The upper end of the limit retaining ring is a platform, which can block water. However, the direction of hot air flow is upward. If the diameter of the platform is large, the direction of hot air flow will be changed, which will affect the suspension of metal foil and the discharge of exhaust gas. If the diameter of the platform If it is small, it will not play the role of water blocking, and the water will flow down from the outer edge of the platform and stain the metal foil

The upper end of the exhaust cover is set outside the inner pot, and the lower end is not fixed, so it is easy to fall off from the inner pot

The support sleeve and the limit retaining ring are interlocked to form a whole and placed on the outer pot and set outside the inner pot. When the energy-saving kettle is tilted when pouring water, the whole formed by the support sleeve and the limit retaining ring will move, and the support sleeve And the limit retaining ring will be separated, which will not only cause the automatic control to fail, but also damage the exhaust control device, especially the suspendable metal foil, and cannot guarantee the reliability and stability of the exhaust control device.

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