The special splint valve for non-stop pipeline with pressure opening and plugging consists of upper valve plate, lower valve plate, valve core, screw mother seat, screw, screw cap and thrust ball bearing. The upper valve plate and the lower valve plate are respectively provided with two sealing grooves. The sealing groove is dovetail-shaped. The valve core is placed in the groove of the lower valve plate. The thickness of the valve core is between the groove depth between the upper valve plate and the lower valve plate. Clearance matching, the screw mother seat is welded on the valve core, the screw mother is placed in the screw mother seat, the screw is connected with the screw mother, and the screw cap is fixed to the screw. The lower valve plate of the utility model integrates the lower valve plate and the middle valve plate of the traditional valve, reduces a sealing ring between the lower valve plate and the middle valve plate, and reduces the probability of leakage. At the same time, the sealing ring groove on the traditional valve core is changed to the upper valve plate and the lower valve plate to avoid the damage of O-ring caused by long friction during the opening or closing process of the valve core. In addition, the swallow-tail sealing groove can make the O-ring damaged during the opening or closing process of the The O-ring can be prevented from falling off during the opening or closing of the valve.
【技术实现步骤摘要】
管道不停输带压开孔封堵专用夹板阀
本技术涉及管道带压封堵
,具体涉及一种管道不停输带压开孔封堵专用夹板阀。
技术介绍
管道不停输带压开孔封堵专用夹板阀作用是管线在维修时,在带压的状态下作业时所需的夹板阀,传统工艺中夹板阀由上阀板、下阀板、中阀板、阀芯、丝杠、压盖组成,中阀板与上阀板和下阀板之间都使用O型圈密封,阀板之间的配合面加工精度要求高,使用过程中存在泄漏隐患。传统工艺的燕尾型密封槽在阀芯上,通过丝杠传动使阀芯进行开启或关闭过程中O型圈一直处于磨损状态,容易造成泄漏隐患。
技术实现思路
本技术针对现有技术存在的不足,提供了一种管道不停输带压开孔封堵专用夹板阀。本技术解决其技术问题所采用的技术方案是:一种管道不停输带压开孔封堵专用夹板阀,由上阀板、下阀板、阀芯、丝母座、丝母、丝杠、丝杠压盖和推力球轴承组成,上阀板和下阀板分别设置两道密封圈槽,密封圈槽采用燕尾型密封槽,阀芯放于下阀板的凹槽内,阀芯的厚度与上阀板和下阀板之间的凹槽深度间隙配合,丝母座焊接在阀芯上,丝母放置于丝母座内,丝杠与丝母连接,丝杠压盖固定住丝杠,丝杠压盖内部设置两道密封圈。本技术的下阀板将传统阀 ...
【技术保护点】
1.一种管道不停输带压开孔封堵专用夹板阀,其特征是由上阀板、下阀板、阀芯、丝母座、丝母、丝杠、丝杠压盖和推力球轴承组成,上阀板和下阀板分别设置两道密封圈槽,密封圈槽采用燕尾型密封槽,阀芯放于下阀板的凹槽内,阀芯的厚度与上阀板和下阀板之间的凹槽深度间隙配合,丝母座焊接在阀芯上,丝母放置于丝母座内,丝杠与丝母连接,丝杠压盖固定住丝杠,丝杠压盖内部设置两道密封圈。
【技术特征摘要】
1.一种管道不停输带压开孔封堵专用夹板阀,其特征是由上阀板、下阀板、阀芯、丝母座、丝母、丝杠、丝杠压盖和推力球轴承组成,上阀板和下阀板分别设置两道密封圈槽,密封圈槽采用燕尾型密封槽...
【专利技术属性】
技术研发人员:李春江,李传达,马少飞,张青先,郭晨豪,
申请(专利权)人:北京金石湾管道技术有限公司,
类型:新型
国别省市:北京,11
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