Device and method for erecting submarine pipelines in marine engineering

A device for erecting submarine pipelines in marine engineering, comprising:

• a first bottom plate;
• a first clamping piece, comprising a moving support and a first clamping jaw, wherein the moving support is arranged on the first bottom plate and driven to move by a moving mechanism, and the first clamping jaw is arranged on the moving support, and the first clamping jaw is used for positioning and preliminarily clamping the pipeline;
• a second clamping piece, comprising a fixed support and a second clamping jaw, wherein the fixed support is fixed on the first bottom plate, the second clamping jaw is arranged on the fixed support, and the second clamping jaw is used for clamping the pipeline for the second time;
• wherein the second clamping piece and the first clamping piece are arranged along a first direction, and the first direction is the longitudinal direction of the pipeline;
• wherein the device further comprises a second bottom plate, the second bottom plate is fixed on the seabed and arranged below the first bottom plate, and a buffer mechanism for buffering the first bottom plate is arranged on the second bottom plate;
• wherein the buffer mechanism comprises one or more first buffer pieces, and the first buffer pieces comprise elastic bodies, the elastic bodies are arranged on the second bottom plate along the first direction in a sliding way, and both ends of the elastic bodies are provided with first rotating rods, both ends of the first rotating rods are rotatably connected with the elastic bodies and the first bottom plate respectively;
• and
• wherein the first buffer piece further comprises limit plates, and the two limit plates are fixed on the second bottom plate at a certain distance and connected through a cross bar;
• the elastic body comprises a spring and sliders, and the two sliders are slidably arranged on the cross bar;
• the spring is sleeved on the cross bar with both ends fixed with the two sliders respectively, and each slider is rotatably connected with the first bottom plate through the first rotating rod.