Double-thread aluminum pipe clean-keeping plastic cap

The utility model discloses a double thread aluminum pipe clean-keeping plastic cap which comprises a cap body which is of an up-down structure, the cap body comprises an upper port, a lower port anda middle layer, the middle layer with uniform thickness is arranged in the position, close to the mid...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SHEN CHENHUA, BIAN JINGWEI, HUANG NIELIN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model discloses a double thread aluminum pipe clean-keeping plastic cap which comprises a cap body which is of an up-down structure, the cap body comprises an upper port, a lower port anda middle layer, the middle layer with uniform thickness is arranged in the position, close to the middle, in the cap body, the cap body is divided into two parts by the middle layer, and the upper port is reserved in the top of the cap body. Standard upper port threads matched with the aluminum pipe threads are arranged in the upper port, a lower port is reserved at the bottom of the cap body, lower port piercing and standard matched lower port threads are arranged in the lower port, standard lower port threads are arranged on the inner circle face of the lower port, the lower port piercing isarranged in the lower port in an inverted mode, and the lower port piercing is of an up-down structure. The bottom end of the lower opening puncture is a cylinder for ensuring the strength of the sealing film of the puncture