High lift range thin type compressing block

Abstract

The invention discloses a high lift range thin type compressing block. The compressing block comprises a left wedge block, a right wedge block, an upper wedge block and a lower wedge block; the wedge surfaces of the wedge blocks match with each other to form a wedge bond body; the end faces of the wedge-shaped small ends of the left wedge block and the right wedge block are equipped with alternate groove structures; when the left wedge block and the right wedge block move towards each other, the end face bosses formed by the left wedge block and the right wedge block are enabled to stretch in the groove structures of the opposite sides, thus forming fit; the limit distances of the left wedge block and the right wedge block in opposite movement are increased; the vertical lifting distances of the upper wedge block and the lower wedge block are improved; the thickness of the compressing block can be correspondingly thinned on the premise of keeping the original lifting distance of the compressing block; and therefore, the compressing block is mounted successfully.

Description

technical field [0001] The invention relates to the field of cable penetration installation sealing, and more particularly relates to a large-lift thin compression block for a cable penetration device. Background technique [0002] In ships and offshore drilling platforms, openings are often required in structures such as cabins, walls or partitions to penetrate cables / wires. In order to seal and protect the cables from fire, smoke, gas and water, etc., at these openings, cable penetrations are used. [0003] see figure 1 , figure 1 It is a schematic diagram of the outline structure of an existing cable penetration device. Such as figure 1 As shown, the existing cable penetration device generally includes a rigid frame 100, the frame is pre-embedded on the partition or wall, and multiple groups of elastic seals 200 for clamping the cables 300 passing through the frame are installed in the frame, and , a compression block 400 for expanding between the inner wall of the f...

AI Technical Summary

Problems solved by technology

However, because the pressing block is an elastic element, it is easily deformed by force. When the length L1 of the left and right wedges is shortened, the effective contact area between the upper and lower wedges and the left and right wedges will decrease accordingly.

like Figure 5 As shown, in the actual working process of the compression block, because the upper and lower wedges are subject to a large vertical extrusion force F, and the gap between the four wedges is too large after the length L1 is shortened, the upper and lower wedges The loss of more effective support results in deformation (as indicated by the dotted line in the figure), and it is difficult to rise smoothly, resulting in poor movement of the left and right wedges and being embedded in the gap between the upper and lower wedges, so it is difficult to reach Expected sealing effect

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