The invention relates to a switch valve used in a transmission pipeline. Including a valve body, a valve seat and a valve core, one end of the valve body are arranged at both sides of the import, the other end is arranged at the bottom of the valve body outlet, a valve seat is provided; the body is hollow, the top opening and opening closing opening valve set cover, valve installed in the valve body; the valve core and valve seat adjacent end is provided with a sealing teeth, the valve core and the valve body the adjacent side is provided with a vertical meshing tooth seal. The valve core is connected with a valve rod, the valve rod is arranged on the valve cover, and the top of the valve rod extends out of the valve cover from the mounting hole, and the tail of the valve rod can be pulled to drive the valve core to move. Labyrinth valve, the spool and the valve seat between the friction, to avoid the loss of the valve core, extend the service life of the valve, while the use of labyrinth type closure effect, can play a good role in the closure of the leak.
【技术实现步骤摘要】
本专利技术涉及一种用于传输管道中的开关阀门,具体为迷宫式阀门。
技术介绍
阀门是通过阀芯开关达到截止、调节流体传输的作用。现有的普通开关阀门,采用接触式硬密封,即阀芯与阀座紧密接触时关闭,分离时打开。接触式阀门由于阀芯和阀体长期紧密接触,开启关闭均会产生摩擦,部件容易损耗,造成使用寿命短,密封不严,容易泄露等问题。
技术实现思路
为了解决接触式阀门使用寿命短、密封不严的问题,设计了一种迷宫式阀门,采用非接触式结构,避免摩擦,降低损耗。迷宫式阀门,包括阀体、阀座和阀芯,所述阀体两侧一端设置进口,另一端设置出口,阀体底部设置阀座。阀体内部为空腔,顶端开口,开口处设置阀盖封闭开口,阀芯安装在阀体内;所述阀芯和阀座相邻端设置有密封齿,所述阀芯和阀体相邻侧面设置有相啮合的竖向密封齿。所述阀芯连接有阀杆,阀杆安装连接阀盖上,阀杆顶端从安装孔伸出阀盖外部,可以拉动阀杆尾部,带动阀芯运动。进一步的,所述密封齿的齿条之间具有间隙,形成膨胀空腔。所述竖向密封齿的齿条之间具有间隙,形成膨胀空腔。齿与齿之间并未接触,即阀芯和阀座间具有间隙,不会产生摩擦损耗。多个齿条之间形成连续的多个空腔,构成迷宫效应,齿条之间对流体起到截流的作用,流体在通过曲折的迷宫式齿条间隙时产生节流效应,达到阻漏的目的。同时在高速流体流入时,在膨胀空腔内回旋,将流体的动能转化为热能,通过阀门传导散热。齿与齿之间也可以采用接触式,紧密相邻,由于阀芯是上下运动,阀门开启或关闭时,阀芯与阀座之间也不会产生摩擦。进一步的所述阀芯与阀杆连接部设置有向内的凹槽,凹槽内放置密封填料,密封阀体,防止泄露。所述的密封填料为流质 ...
【技术保护点】
迷宫式阀门,其特征在于,包括阀体(1)、阀座(2)和阀芯(3),所述阀体(1)两侧一端设置进口(11),另一端设置出口(12),阀体(1)底部设置阀座(2);阀体(1)内部为空腔,顶端开口,开口处设置阀盖(5)封闭开口,阀芯(3)安装在阀体(1)内;所述阀芯(3)和阀座(2)相邻端设置有密封齿(6),所述阀芯(3)和阀体(1)相邻侧面设置有竖向密封齿(7);所述阀芯(3)连接有阀杆(4),阀杆(4)安装连接阀盖(5)上,阀杆(4)顶端从安装孔伸出阀盖(5)外部。
【技术特征摘要】
1.迷宫式阀门,其特征在于,包括阀体(1)、阀座(2)和阀芯(3),所述阀体(1)两侧一端设置进口(11),另一端设置出口(12),阀体(1)底部设置阀座(2);阀体(1)内部为空腔,顶端开口,开口处设置阀盖(5)封闭开口,阀芯(3)安装在阀体(1)内;所述阀芯(3)和阀座(2)相邻端设置有密封齿(6),所述阀芯(3)和阀体(1)相邻侧面设置有竖向密封齿(7);所述阀芯(3)连接有阀杆(4),阀杆(4)安装连接阀盖(5)上,阀杆(4)顶端从安装孔伸出阀盖(5)外部。2.根据权利要求1所述的迷宫式阀门,其特征在于,所述密封齿(6)的齿条之间具有间隙,形成...
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