The utility model discloses a turnover double shutter pneumatic valve in the pneumatic double gate valve technology field. The valve comprises a hollow valve body with symmetrically arranged circular openings on both sides of the valve body, and a reversible gate plate is arranged at each opening position. The upper end of the gate plate is hinged at the upper wall of the valve body at the opening, and the lower end of the gate is sealed with an opening; a cylinder is arranged at the top center of the valve body, and the piston rod of the cylinder is penetrated into the valve body, thus the cylinder is alive. The bottom end of the plug rod is provided with through holes, through holes are fitted with wire rope, and the two ends of the wire rope are respectively fixed at the lower ends of the two gates; the valve body is vertically provided with two mounting plates, both of which are symmetrically arranged on both sides of the cylinder piston rod, the upper end of the mounting plate is fixed with the top wall of the valve body, and the lower end of the mounting plate is provided with wire rope. A fixed pulley in contact is fixed between the mounting plate and the adjacent brake plates by a fastener with a compression spring to press the brake plate against the opening. The utility model opens and close the valve through the turnover of the gate to reduce wear.
【技术实现步骤摘要】
一种翻转式双闸板气动阀门
本技术涉及气动双闸板阀
,特别涉及一种翻转式双闸板气动阀门。
技术介绍
阀门是流体输送系统中的控制部件,具有截止、调节、导流、防止逆流、稳压、分流或溢流泄压等功能。现有技术中公开了一种技术,申请号为CN201520415970.8,授权公告号CN204692621U,授权公告日为20151007,名称为一种气动双闸板阀,包括两个带有通孔的侧壳体,两个侧壳体对夹固定一内部有空腔的中壳体,中壳体和两个侧壳体共同形成一阀门内腔,侧壳体上的通孔和阀门内腔联通;阀门内腔中设有阀芯,中壳体外固定一气缸,气缸的活塞杆穿过中壳体与阀芯固定连接,带动阀芯在阀门内腔中平动,使两个侧壳体上的通孔相互联通或隔离;活塞杆穿入中壳体处从外向里依次设有一个压盖、密封填料和两个密封圈,压盖与中壳体固定连接并将密封填料压紧;所述气缸的活塞杆外端与阀芯连接处设有一气缸接头,气缸接头内设有内孔,内孔内设有压簧,阀芯包括两个背向设置的阀板,两个阀板在压簧的作用下始终与侧壳体内侧壁压紧。现有技术中通过气缸活塞杆运动带动阀板向下运动,阀门关闭,其中,阀板通过压簧作用,始终与侧壳体内壁密封面保持紧密接触,同时,在接触面上设置有陶瓷阀座和陶瓷板,较之前使用的合金钢相比,提高耐磨性,但是,现有技术中依旧存在如下问题,通过替换合金钢提高耐磨性,并不能从根本上减少磨损,长期使用,阀板因为上下移动依旧会不断摩擦陶瓷板导致磨损,流体从磨损处外泄,使用寿命短。
技术实现思路
本技术的目的是提供一种减少磨损的翻转式双闸板气动阀门。为了实现上述技术目的,本技术翻转式双闸板气动阀门采用的如下技术方 ...
【技术保护点】
1.一种翻转式双闸板气动阀门,其特征在于:包括中空的阀体,所述阀体的两侧对称地设有圆形开口,每个开口位置设置有可翻转的闸板,闸板的上端铰接在阀体内壁位于开口的上方,闸板的下端密封开口;所述阀体的顶部中心设置气缸,气缸的活塞杆穿入阀体内,气缸活塞杆的底端设有通孔,所述通孔内穿装有钢丝绳,钢丝绳的两端分别固定在两个闸板下端;所述阀体内竖向设置有两个安装板,两个安装板均对称地设置在气缸活塞杆的两侧,安装板的上端与阀体顶壁固定,安装板的下端设有与钢丝绳相接触的定滑轮,所述安装板与相邻的闸板之间通过紧固件固定有将闸板抵压在开口上的压紧弹簧。
【技术特征摘要】
1.一种翻转式双闸板气动阀门,其特征在于:包括中空的阀体,所述阀体的两侧对称地设有圆形开口,每个开口位置设置有可翻转的闸板,闸板的上端铰接在阀体内壁位于开口的上方,闸板的下端密封开口;所述阀体的顶部中心设置气缸,气缸的活塞杆穿入阀体内,气缸活塞杆的底端设有通孔,所述通孔内穿装有钢丝绳,钢丝绳的两端分别固定在两个闸板下端;所述阀体内竖向设置有两个安装板,两个安装板均对称地设置在气缸活塞杆的两侧,安装板的上端与阀体顶壁固定,安装板的下端设有与钢丝绳相接触的定滑轮,所述安装板与相邻的闸板之间通过紧固件固定有将闸板抵压...
【专利技术属性】
技术研发人员:殷爱斌,
申请(专利权)人:江苏龙迈环保设备有限公司,
类型:新型
国别省市:江苏,32
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