青龍管業(002457.SZ):取得1項實用新型專利證書
格隆匯12月15日丨青龍管業(002457.SZ)公佈,2021年12月14日,公司收到中華人民共和國國家知識產權局頒發的實用新型專利證書。專利名稱:一種改進型預應力混凝土管的內模裝置。
本實用新型公開了一種改進型預應力混凝土管的內模裝置,一種改進型預應力混凝土管的內模裝置,內模裝置是圓筒型結構,內模裝置從裏向外依次包括了內模裝置的內側鋼筒層,內側鋼筒層外套有橡膠管層,橡膠管層外粘接有薄鋼板層;橡膠管層與薄鋼板層之間塗刷有膠粘劑,薄鋼板層上設置有伸縮縫,伸縮縫邊緣的薄鋼板設置有若干鎖邊扣,內模裝置插口端的結構層通過插口錨固盤錨固封閉,承口端的結構層通過承口錨固盤錨固封閉,承口錨固盤連接有承口座;內模橡膠管層充水加壓擠壓外側混凝土時管體內壁不會出現凹坑缺陷,提高了產品外觀質量的合格率;降低了管材在生產過程中的降級、損壞、報廢、內壁粗糙等質量缺陷,節約了人工和材料成本。
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