The utility model relates to the technical field of ball valve, in particular to a gate valve with a wear reducing pad, including a valve shaft, a lock nut, a split ring and a valve cover; the middle part of the valve shaft is provided with a circle of limit groove, a part of the split ring is installed in the limit groove, the lower part of the lock nut is provided with a ladder groove, the upper part of the lock nut is fixed on the valve shaft, and the ladder groove is buckled on the outside of the split ring, The valve cover is fixed on the outside of the lock nut; the bottom of the valve cover is provided with a wear reducing pad which is sleeved on the valve shaft, and the upper part of the wear reducing pad is matched with the split ring. The device limits the split ring to the lower groove of the lock nut for radial positioning, while the lock nut also limits the axial movement of the split ring. The new design greatly reduces the operating torque of the valve.
【技术实现步骤摘要】
带有减磨垫的闸阀
本技术涉及球阀
,尤其涉及一种带有减磨垫的闸阀。
技术介绍
暗杆闸阀阀杆的轴向定位结构阀轴上安装对开环,对开环上有锁母限制其轴向窜动。现有设计中在阀轴旋转时对开环会向外松动,摩擦阀盖内壁来增加操作扭矩。
技术实现思路
本技术的目的在于克服上述技术的不足,而提供一种带有减磨垫的闸阀。本技术为实现上述目的,采用以下技术方案:一种带有减磨垫的闸阀,其特征在于:包括阀轴、锁母、对开环以及阀盖;所述阀轴的中部设有一圈限位凹槽,所述对开环的一部分安装在所述限位凹槽内,所述锁母下部设有阶梯槽,锁母上部固定在阀轴上,阶梯槽扣在对开环的外部,所述阀盖固定在所述锁母的外部;所述阀盖的底部设有减磨垫,所述减磨垫套在所述阀轴上,减磨垫的上部与所述对开环配合。优选地,所述发皱与锁母之间设有密封圈。本技术的有益效果是:相对于现有技术,本装置将对开环限制在锁母下部凹槽内进行径向定位,同时锁母又限制了对开环的轴向窜动。新设计大大降低了阀门的操作扭矩。将阀轴与对开环分开成为两体,并且在对开环下部 ...
【技术保护点】
1.一种带有减磨垫的闸阀,其特征在于:包括阀轴、锁母、对开环以及阀盖;所述阀轴的中部设有一圈限位凹槽,所述对开环的一部分安装在所述限位凹槽内,所述锁母下部设有阶梯槽,锁母上部固定在阀轴上,阶梯槽扣在对开环的外部,所述阀盖固定在所述锁母的外部;所述阀盖的底部设有减磨垫,所述减磨垫套在所述阀轴上,减磨垫的上部与所述对开环配合。/n
【技术特征摘要】
1.一种带有减磨垫的闸阀,其特征在于:包括阀轴、锁母、对开环以及阀盖;所述阀轴的中部设有一圈限位凹槽,所述对开环的一部分安装在所述限位凹槽内,所述锁母下部设有阶梯槽,锁母上部固定在阀轴上,阶梯槽扣在对开环的外部,所述...
【专利技术属性】
技术研发人员:范全军,范旭光,
申请(专利权)人:天津富赛克流体控制设备有限公司,
类型:新型
国别省市:天津;12
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