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# So lösen Sie das Problem der Lüfterhubfunktion durch Dint Spring

Quelle:Qianye-Präzision Zeit:2022-9-13
We all know that gravity of the earth’s center will drop rapidly to the bottom point when the object has no support, and it will be heavy when it rises. Similarly, when the fan moves up and down, it will also be affected by gravity. Therefore, we all hope that the fan will be more light when it is lifted and lowered; it can be easily moved up and down by hand to locate at will, and the fan will be more arbitrary when using it. Therefore, to achieve the purpose of light and arbitrary positioning, we must solve the problem of gravity
There are several main points for the fan to rise and fall:
1. Life problems:
Each kind of hair will have a certain life cycle. If you choose the general materials and immature production technology, the life of the products will be greatly reduced. The same with the elastic problem of hairpin, they are all related to materials and processing technology. In the process of using the fixed force, there will be problems of too short life,.
2. Elasticity:
In the limited space, under the same size conditions, in order to make the hair to meet the strength requirements, we must strengthen it from two aspects to better play the effect.
(1) Reasonable use of materials:
In the process of production and design, we need to use the corresponding materials for processing and production according to the design of the spring.
(2) Processing technology
There are different processes for the same surface size of the fixed force strand. When the hairbar is pulled to a certain length, some of them may have larger size and cracks in the dense winding body. When comparing the two kinds of hairlines at the same time, we will find that it is more obvious; we can see the differences between the two kinds of hairlines when we send the back curling, and so on. This requires improvement in processing technology.
Through practical results, we finally choose a kind of hair which can stretch and expand, automatically retract and act as a constant force – “fixed force strip” to solve the problem of gravity. When the weight and size match the design, the spring can pull down without falling at an extremely fast speed, and it will not be too difficult to pull up.

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