Snap spring, pressure limit valve and home appliance

Abstract

The invention provides a snap spring, a pressure limit valve and a home appliance. The snap spring comprises an outer ring portion and two fastening portions, the outer ring portion is provided with notches, and the two fastening portions are connected at two notch ends of the outer ring portion and extend closely to the outer ring portion. The fastening portions are of convex arc-shaped structures, and one side of each convex arc-shaped structure facing the notches is a convex side. By the snap spring, the fastening portions are of convex arc-shaped structures, the convex sides of the convex arc-shaped structures are fastened with an object to be fastened via a point-side stress way, so as to reduce stress area of the fastening portions and achieve the purpose for reducing or avoiding deformation and falling of the snap spring.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to a retaining spring, a pressure limiting valve and household appliances. Background technique [0002] At present, the circlip of the pressure limiting valve of the electric pressure cooker is prone to technical problems such as falling off and deformation. The circlip in the prior art will loosen and be seriously deformed after the disassembly test of the pressure limiting valve does not exceed 100 times. Some circlips are the most Almost 20 times it will be damaged. [0003] Such as figure 1 As shown, the clip spring in the prior art includes an outer ring part 11' and a clamping part 12'. The above-mentioned clamping part 12' is connected to both ends of the outer ring part 11' in a straight line structure, and the above-mentioned clamping part 12 'The non-connecting end abuts against the outer ring portion 11'. When working, the clamping portion 12' through the entire li...

AI Technical Summary

Problems solved by technology

[0004] Disadvantages of the prior art: the pressure limiting valve in the prior art will be disassembled and cleaned during use, and the clamping part 12' is engaged with the clamping surface as a whole, so that the clamping spring is prone to damage due to an excessively large stress area

However, the deformation and falling off of the circlip will easily cause the electric pressure cooker to leak air during normal operation, causing the pressure of the electric pressure cooker to fail to meet the set requirements.

Images