Seals for sliding watertight doors

Abstract

The invention discloses a sealing device for a sliding watertight door. The sealing device comprises a sealing assembly and pressing mechanisms arranged on the door frame, wherein the sealing assembly comprises O-shaped sealing rings arranged on the surface of a door plank or the door frame and lip-shaped sealing rings arranged on the inner sides of the O-shaped sealing rings, the lip-shaped sealing rings are in a single opening lip shape, and lip openings face the center of the door plank. The pressing mechanisms comprise wedge-shaped blocks and pressing drive units. After the door plank is driven by a sliding drive unit in place in the sliding direction, the pressing drive units drive the wedge-shaped blocks to move so as to press the door plank to the door frame in the door plank pressing direction, and thus good double-face sealing of the watertight door is achieved through the independent separation operation of sliding and pressing, relative to the door frame, of the door plank, the requirement for evenly sealing the double faces of the watertight door can be met, meanwhile the problem that sealing performance is lowered due to wear to and the shape and mounting state change of the sealing piece caused by opening and closing of a watertight door is solved, and the requirements for the power of a power device and rigidity and strength of a drive device are lowered.

Description

Technical field [0001] The invention belongs to the technical field of sliding watertight doors, and in particular relates to a sealing device for sliding watertight doors. Background technique [0002] The sliding watertight door is a device used for opening or closing the channel between the cabins below the waterline of the waterline of floating buildings such as various surface ships or marine development work platforms. It is installed in the bulkhead between the cabins under the waterline of the building Above, it is required to have two-way anti-permeability capability. [0003] In order to achieve the above effect, a sealing device must be provided between the door panel and the door frame of the watertight door to prevent water from one compartment from being spread to other compartments when the building is damaged. Therefore, the door is not only an important passage connecting the cabins of the building, but also an important link to ensure the vitality of the building...

AI Technical Summary

Problems solved by technology

[0009] Aiming at the above defects or improvement needs of the prior art, the present invention provides a sealing device for a sliding watertight door, which solves the problems in the current sealing device by designing a new sealing component and adopting an optimized sealing and pressing mechanism. The sealing performance of the sealing assembly cannot meet the requirements of bilateral equal sealing, and the sealing performance decline caused by the wear, shape and installation state of the seal during door opening and closing, and at the same time reduce the power of the power unit and the stiffness and strength of the drive unit Require

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