Abstract: Disclosed are differential temperature push bending method and device for tube with small bending radius, the device comprising: a push bending die, core, fillers and pushers, wherein the core and the fillers are both arranged in a bending chamber of the push bending die, an inlet and an outlet end of the push bending die are respectively provided with a front guiding sleeve and a rear guiding sleeve, the pusher in the front guiding sleeve abuts against a plurality of fillers, and the pusher in the rear guide sleeve abuts against the core. A heat rod is provided at an outer end of the bending chamber. The present disclosure adopts differential temperature type push bending, flow performance of the tube blank at the outer corner of the die can be improved, and the material can be timely fed to prevent excessive stretching and thinning of the outer material.

Abstract: An oceaneering test platform device for simulating oceaneering working conditions is disclosed. The oceaneering test platform device comprises a main body, a lifting unit, a plurality of spud legs connected to the main body by the lifting unit, a plurality of base units located correspondingly to the plurality of spud legs and one or more vertical driving unit to enable vertical movement of at least one of the plurality of spud legs. The test platform device facilitates simulation of possible effects caused by unstable and complex ocean environments to an offshore work platform.

Abstract: Disclosed are differential temperature push bending method and device for tube with small bending radius, the device comprising: a push bending die, core, fillers and pushers, wherein the core and the fillers are both arranged in a bending chamber of the push bending die, an inlet and an outlet end of the push bending die are respectively provided with a front guiding sleeve and a rear guiding sleeve, the pusher in the front guiding sleeve abuts against a plurality of fillers, and the pusher in the rear guide sleeve abuts against the core. A heat rod is provided at an outer end of the bending chamber. The present disclosure adopts differential temperature type push bending, flow performance of the tube blank at the outer corner of the die can be improved, and the material can be timely fed to prevent excessive stretching and thinning of the outer material.

Abstract: An oceaneering test platform device for simulating oceaneering working conditions is disclosed. The oceaneering test platform device comprises a main body, a lifting unit, a plurality of spud legs connected to the main body by the lifting unit, a plurality of base units located correspondingly to the plurality of spud legs and one or more vertical driving unit to enable vertical movement of at least one of the plurality of spud legs. The test platform device facilitates simulation of possible effects caused by unstable and complex ocean environments to an offshore work platform.

Abstract: The present invention relates to a system and method for domestic multimedia playing. The method comprises a transmitter receives audio and video data outputted by a plurality of multimedia devices; the transmitter analog-to-digital converts the audio and video data respectively; the transmitter encodes and compresses the converted audio and video data; the transmitter transmits the encoded and compressed audio and video data to a receiver by a means of 2.4G radio frequency; the receiver receives the audio and video data from the transmitter by a means of 2.4G radio frequency; the receiver decompresses and decodes the received audio and video data; the receiver digital-to-analog converts the decompressed and decoded audio and video data and drives a display screen and a power amplification module to play the converted audio and video data. When implementing present invention, the user can carry the receiver and watch multimedia program at any time and anywhere.