Oil and casing tube screw thread protectors capable of quickly loading and unloading

• Main Authors: CHI JUN, LU SHUANLU, ZHOU JIE, GONG JIANWEN, QIN HONGDE, LE FAGUO
• Format: Patent
• Language: Chinese; English
• Published: 24.12.2008
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

The utility model relates to a fast assembling-disassembling oil pipe and cannula thread protector which is applied to the protection of the thread joint of the oil pipe and the cannula during the descent process of the oil pipe and the cannula. The thread protector is characterized in that an inner sleeve is arranged in an outer sleeve; a compression spring is fixed at the bottom of the inner sleeve, and the outer sleeve and the inner sleeve are provided with through holes; the oil pipe or the cannula can pass through the through hole of the inner sleeve. A cam supporting shaft is fixedly connected with the outer sleeve, and a cam clamping mechanism is matched with the inner sleeve, thereby realizing the function for fastening and loosening the thread protector and the thread joint of the oil pipe and the cannula. The thread protector has the effect that only the thread protector is sleeved on the thread joint, and four corners at one end of the supporting shaft is rotated by a handle spanner in the positive