| Structure type |
Instructions |
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The end of the spring is made into a closed cone shape. Insert the screw with a ring and rotate the nut to adjust the tension of the spring |
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The spring is installed on the nut with shoulder. The diameter of the two coils at the end of the spring is smaller than the normal diameter for fixation. The tension of the spring can be adjusted by rotating the nut |
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The spiral groove is processed on the spiral pull rod, the pull rod is rotated into the end of the spring, and the tension of the spring can be adjusted by rotating the pull rod |
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Make the spring end straight, and process the thread to form a screw. Rotate the nut at the screw end to adjust the tension of the spring |
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There is a hole drilled on the steel plate. The spring end rotates 3~4 times in the manhole. The tension of the spring is adjusted by the number of inner coils |
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The end of the spring is hung in the hole of the slider 1. The slider can move along the guide rod and be fixed with the fastening screw 2. The tension of the spring can be adjusted by adjusting the position of the slider |
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The screw 2 adjusts the position of the support 1 to adjust the tension of the spring. Adjust the number of working coils of the spring as required. It is a good adjustment structure, but it is complex |
