The methods to prevent loosening and falling off are as follows:
The first one: the loss of desk lamp spindle has a great relationship with its internal structure design. If the anti-dropping design is added to the rotating shaft of the desk lamp, the loosening of the rotating shaft can be well avoided. If this happens, the user can replace it after sale or buy it again.
Secondly, if the position of the rotating shaft device and the fixing hole in the electronic product are not completely installed, the product is easy to loosen when rotating. Therefore, Suo Chengbian Xiao suggested that the rotating shaft should be carefully inspected after being assembled into electronic products.