A steering switch cover mechanism for a deep-sea heat preservation and pressure holding cabin

Abstract

The invention relates to deep sea ocean seabed sampling and transportation equipment, in particular to a change-over switch cover mechanism of a deep sea heat preservation and pressure maintaining cabin. A power source and a steering lever fixing rack are mounted on a heat preservation and pressure maintaining cabin body, a steering lever can relatively move and is inserted into the steering rod fixing rack, one end of the steering lever is connected with the output end of the power source, the other end of the steering lever is connected with a top end cover fixing rack, and the other end of the top end cover fixing rack is connected with a top end cover. A motion track groove is formed in the steering lever in the axial direction, a pin inserted into the motion rack groove is arranged on the steering lever fixing rack, the steering lever is driven by the power source to ascend and descend in a reciprocating mode in the axial direction, the pin is located in the motion track groove all the time in the ascending and descending process, and cover opening and closing between the top end cover and the heat preservation and pressure maintaining cabin body are achieved. The change-over switch cover mechanism can achieve the non-directional rotating function under the condition of single oil cylinder power source supply, the control number of multiple inputs and outputs of the power source is reduced, high-precision cooperative work is avoided, and the error probability is reduced.

Description

technical field [0001] The invention relates to deep-sea seabed sampling and transshipment equipment, in particular to a steering switch cover mechanism for a deep-sea heat preservation and pressure holding cabin. Background technique [0002] At present, the opening and closing lid movement modes of the few deep-sea thermal insulation and pressure holding sample transfer chambers currently in use generally have three movement modes. The first one is to open and close the lid through uniaxial reciprocating motion of the oil cylinder under the condition of sufficient height space; the characteristic of this reciprocating motion mechanism is that the movement space is large and the axial direction is single. The second type, under the condition of sufficient power source input and output units, can use double cylinders to perform coordinated movement to complete the lid opening and closing action; its characteristic is that the movement sequence of the two sets of cylinders mu...

AI Technical Summary

Problems solved by technology

The first one, under the condition of sufficient height space, the oil cylinder performs single-axis reciprocating movement to complete the opening and closing action; this reciprocating mechanism is characterized by a large movement space and a single axial direction

The second type, under the condition of sufficient input and output units of the power source, can use double cylinders to carry out coordinated movement to complete the action of opening and closing the lid; its characteristic is that the movement sequence of the two sets of cylinders must be preset, and the coordinated movement must be accurate

The third is to use the turntable mechanism to complete the movement in different axial directions. Often the turntable mechanism controls the turntable to rotate in the specified direction through the ratchet to complete the opening and closing action. At the same time, it needs to limit its forward rotation and reverse rotation. Angle; its characteristic is that it cannot guarantee uniform motion. In the transmission process, once the transmission ratio changes, the rotation angle will be offset, and the phenomenon of dead point needs to be considered.

The characteristics of the above three situations determine that the operation difficulty and stability cannot support the normal operation of the heat preservation and pressure holding cabin in the environment of complex changes in deep sea pressure. Therefore, it is necessary to develop a new steering switch cover mechanism to overcome the current shortage of space. case, the difficulty of opening and closing the top cover

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