Joint sealing protection device

The utility model provides a joint sealing protection device which comprises a hollow main seat, an oil discharge pressure relief device arranged on one side of the main seat, and a joint butt joint port arranged on the top of the main seat, used for being in butt joint with a joint and enabling the joint to be in a closed state when a lifting valve is in an open state. According to the utility model, the joints at the two ends of the pipeline can be sealed, the sealing valves of the joints are protected, and the sealing valves are prevented from being damaged during a pressure test to increase the maintenance cost and workload. 本实用新型提供一种接头密封保护装置，包括中空的主座、设于所述主座的一侧的排油泄压装置、设于所述主座顶部的用于与接头对接的使提升阀处于打开状态下仍使接头处于封闭状态接头对接口。本实用新型可以对管道两端的接头进行密封，并且保护接头自身的密封阀，防止在压力测试的时候密封阀损坏，增加维修成本及工作量。