Three-legged Iron Platform

Instructions

1. The holding clamp and the iron clamp need to be used together. The two ends of the clamp are rotating handles, one end of which is fixed on the column, and the other end is used to fix the iron clamp. The concave surface of one end of the fixed iron clip should face upward to facilitate support and fixation of the iron clip. When fixing test tubes and flasks with iron clamps, you should first loosen the screws of the iron clamps. After putting on the instrument, press the iron clamps with your left hand and turn the screws with your right hand until the instrument cannot rotate.

2. Do not use excessive force when turning the screw to prevent the instrument from being pinched.

3. When using an iron clamp to fix a container with a small outer diameter, you can put rubber hoses or wrap cloth strips on both sides of the iron clamp to reduce the diameter of the iron clamp.

4. Pay attention to the center of gravity. The heavy weight of the iron stand itself is an important factor in ensuring the stability of the instrument during the experiment. However, when clamping the instrument, the instrument should be clamped above the table of the iron stand as much as possible so that the center of gravity falls in the middle of the table and does not collapse or tilt. You should pay special attention when fixing heavy instruments (containing many reactants) at high positions. When fixing the instrument on the iron stand, the parts must be on the same side as the base of the iron stand to prevent the center of gravity of the entire device from exceeding the base and causing the iron stand to tip over.

5. Anti-rust. All parts of the iron frame are made of iron material. To prevent rust, they should be coated with an anti-rust layer, usually with silver powder or dark corrosion-resistant paint. When using, be careful to protect the anti-rust layer from damage. In particular, do not let acid or alkali liquid drip on the iron stand. After use, wipe it dry and place it in a dry place. 6. The gap is upward. Many iron clips and rings are fixed to the posts with double-notch screws. The two gaps are perpendicular to each other, one is placed on the upright column, and the other is inserted into the iron clamp rod or iron ring rod. The gap for inserting the iron clamp rod or iron ring rod must be upward (as shown in Figure 2) to avoid loosening of the screws during loading, unloading or use. And fell.