The utility model relates to a butterfly valve, comprising a driving device, a valve plate, valve seat, valve body, cover, shaft and shaft under the seat, the guide is provided with a coaxial rotation of the valve plate, the valve plate is arranged in the middle part of the lower end of the rotating shaft under the coaxial shaft mounting hole made in the lower end of the valve body in the lower end of the valve body under the coaxial rotation shaft is fixedly provided with the end cover, the end cover and the lower shaft between the coaxial installation with a spring washer, a valve plate is installed on the middle part of the upper end of a coaxial shaft, the upper end of the rotating shaft on the upper end and extends out of the valve body is coaxially provided with a transmission device, the lower end of the shaft system milling cylindrical stem, the valve plate is coaxially provided with square columns with blind hole milling milling cylindrical stem shape, milling cylindrical stem and the valve plate is coaxially embedded and drive the valve plate to rotate. The utility model has the advantages of simple structure, scientific design, corrosion prevention and good leak proof effect, and can be directly contacted with an acid alkaline medium, so as to greatly improve the application range of the butterfly valve.
【技术实现步骤摘要】
本技术属于阀门领域,尤其是一种无销蝶阀。
技术介绍
目前,蝶阀的阀杆与阀板连接通常采用在阀板上打孔安装销钉进行固定,有销蝶阀的圆锥销材料选用范围比较少例如:45#热处理;SS410、SS420等材料,无法满足像高腐蚀介质的材料需求,而且,阀板上安装销钉的安装孔位置容易受到腐蚀、损坏,成为泄露点,阀板喷涂保护层也较为困难。
技术实现思路
本技术的目的在于克服现有技术的不足之处,提供一种结构简单、设计科学、防腐蚀、防漏效果好的无销蝶阀。本技术解决其技术问题是采取以下技术方案实现的:一种无销蝶阀,包括传动装置、阀板、阀座、阀体、端盖、上转轴以及下转轴,阀体内同轴固装有硫化橡胶制成的阀座,该阀座内同轴导向转动安装有一阀板,该阀板下端中部安装有一下转轴,该下转轴同轴安装在阀体下端所制的轴孔内,下转轴下端的阀体下端同轴固装有一端盖,该端盖与下转轴之间同轴安装有一弹簧垫圈,阀板上端中部同轴安装有一上转轴,该上转轴的上端伸出阀体上端并同轴安装有一传动装置,其特征在于:所述上转轴的下端制有铣方柱形阀杆,阀板上端同轴制有与铣方柱形阀杆形状配合的铣方柱形盲孔,铣方柱形阀杆与阀板同轴嵌装并驱动阀板转动。而且,所述阀体外侧间隔固装有地脚架。而且,所述上转轴外的阀体内同轴安装有填料,并在阀体上端的阀杆外同轴安装有密封压盖。本技术的优点和积极效果是:1、本蝶阀的阀轴和阀板之间配合为铣方柱形,无需圆锥销连接,结构简单安装 ...
【技术保护点】
一种无销蝶阀,包括传动装置、阀板、阀座、阀体、端盖、上转轴以及下转轴,阀体内同轴固装有硫化橡胶制成的阀座,该阀座内同轴导向转动安装有一阀板,该阀板下端中部安装有一下转轴,该下转轴同轴安装在阀体下端所制的轴孔内,下转轴下端的阀体下端同轴固装有一端盖,该端盖与下转轴之间同轴安装有一弹簧垫圈,阀板上端中部同轴安装有一上转轴,该上转轴的上端伸出阀体上端并同轴安装有一传动装置,其特征在于:所述上转轴的下端制有铣方柱形阀杆,阀板上端同轴制有与铣方柱形阀杆形状配合的铣方柱形盲孔,铣方柱形阀杆与阀板同轴嵌装并驱动阀板转动。
【技术特征摘要】
1.一种无销蝶阀,包括传动装置、阀板、阀座、阀体、端盖、上转轴以及下转轴,阀体
内同轴固装有硫化橡胶制成的阀座,该阀座内同轴导向转动安装有一阀板,该阀板下端中部
安装有一下转轴,该下转轴同轴安装在阀体下端所制的轴孔内,下转轴下端的阀体下端同轴
固装有一端盖,该端盖与下转轴之间同轴安装有一弹簧垫圈,阀板上端中部同轴安装有一上
转轴,该上转轴的上端伸出阀体上端并同轴安装有一...
【专利技术属性】
技术研发人员:张国营,乔金全,李长远,由玉红,张宇,高来军,
申请(专利权)人:天津澳特斯阀门制造有限公司,
类型:新型
国别省市:天津;12
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