Supporting seat for ball bar ruler
A support seat and ball grid ruler technology, which is applied in the direction of using electric devices, electromagnetic means, measuring devices, etc., can solve the problem that the support seat cannot use ball grid rulers, etc.
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[0012] figure 1 , 2 As shown, the support seat for the ball scale of the present invention includes a base 6, on which a support arm 7 is hinged by a pin, and a support body with a positioning groove is installed on the end of the support arm 7 away from the base 6 by a pin 8. The supporting body 8 is a sheave, wherein the ruler body 1 is located in the positioning groove of the supporting body 8, and realizes positioning cooperation with the positioning groove. In addition, the end of the support arm 7 away from the base 6 is also provided with an electromagnet 9 for holding the ruler body 1. The electromagnet 9 is a U-shaped structure, and the support body 8 is located between two mutually parallel side walls of the U-shaped structure of the electromagnet 9. between. Two torsion springs 10 are arranged between the support arm 7 and the base 6; the two torsion springs 10 are respectively installed on the front and rear ends of the pin, and the torsion directions of the two ...
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