The working principle of the stone fixture is a new practical stone auxiliary tool, which includes the lifting ring, tie rod, lifting arm, splint, etc. Its characteristics and working principle are: between the lifting ring or rod and the lifting arm is provided with a group or several groups of action arm greater than the lever transmission mechanism of the transmission arm. Due to the addition of a pull rod or connecting piece on the stone fixture, the lever's lever arm increases, so that it has a greater clamping force, and the volume of the fixture is small, saving materials and easy to carry.

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