| 摘要 |
A concrete tube mould(A) consists of a cylindrical body(1), a flange(2), an edge piece(3), a few shaft bars(4), a disassembly piece(5), and a spring(6). The flange is fixed on the edge of the body(1) and the edge piece is assembled with it. The bar(4) is arranged with some distance from a hook ring(3a) of the piece(3). The disassembly piece is fixed on the outside edge of the shaft bar. The spring presses the piece(5) inward. A reciprocating slider(5) is established along the longitudinal direction of the mould. Rotating bolts and nuts are assembled along the radius of the mould. A projected piece(16a) is attached on a rod(16) to rotate the disassembly piece.
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