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老式方卡子在使用的过程中其结构单一、无扭矩释放装置、无有效防脱措施。且经常因其安装过程中的操作不便造成高空落物伤人、滑跌伤人等安全生产事故。同时投产过程中因方卡子易脱扣造成卡瓦牙块损坏光杆、碰泵抽吸等重大生产事故。本文阐述了老式方卡子在使用过程中存在的问题及隐患,并根据实际情况研制了新式方卡子,有效根除老式方卡子的弊端,保证施工安全,提高工作实效。
Old-fashioned square clamp in the use of its single structure, no torque release device, no effective anti-off measures. And often because of the inconvenience in the installation process caused by high altitude litter people, slip hurt and other safety accidents. At the same time due to the production process due to the side clips easily tripping kava block damage polish rod, touch the pump suction and other major production accidents. This article elaborates the problems and hidden dangers existing in the use of the old-style square clamps and develops new square clamps according to the actual situation, effectively eradicating the disadvantages of the old-style square clamps, ensuring the construction safety and improving the work efficiency.