Base and pressing device used for transmission belt forming die and special-shaped nut used for transmission belt forming die

An upper cover and a base of a transmission belt vulcanization forming die in the prior art are fixed through a screw and a nut. In order to fix the upper cover and the base more firmly. Therefore, other auxiliary tools are needed to fix the nut. Defects of inconvenient use, the utility model provid...

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Bibliographische Detailangaben
1. Verfasser:	ZHU GUOBIAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An upper cover and a base of a transmission belt vulcanization forming die in the prior art are fixed through a screw and a nut. In order to fix the upper cover and the base more firmly. Therefore, other auxiliary tools are needed to fix the nut. Defects of inconvenient use, the utility model provides a base and a pressing device for a transmission belt forming die and a special-shaped nut for thetransmission belt forming die. The special-shaped nut comprises a nut body. A columnar protrusion with an angle is arranged on the upper end face of the nut body. A threaded hole is formed in the center of the nut body; the threaded hole extends upwards to penetrate through the cylindrical bulge; the pressing device comprises a nut, a screw rod, a base and an upper cover; nut is a special-shapednut, the base adopts the base, the upper cover is arranged above the base, and the cylindrical bulge is arranged in the through hole. By adopting the special-shaped nut provided by the utility model,other auxiliary tools are n