The utility model relates to a new double-sealed rubber gate for a soft-sealed gate valve, which comprises a gate body and a valve stem. The gate body comprises a valve disc and a connecting part. The top of the valve disc is provided with a connecting part. The connecting part is provided with a square reserved hole, and the top surface of the square reserved hole is provided with a threaded hole. The bottom of the valve disc is symmetrically provided with two independent bottom sealing surfaces, and the bottom is sealed. The surface contacts with the bottom of the valve body and is sealed by rubber compressing the bottom sealing surface. Two independent side sealing surfaces are symmetrically arranged on both sides of the valve disc. The top of the rubber valve disc of the utility model can also replace the sealing ring, which can be combined into one design. When the valve disc is hit to the top, it can replace the sealing ring without stopping water or steam; the lower half of the valve disc can be separately pressurized by two independent sealing surfaces, and the safety can be doubled; the problem of rubber sealing failure through extrusion deformation can be completely solved without friction. To extend the service life.
【技术实现步骤摘要】
一种软密封闸阀用新型双密封橡胶闸板
本技术涉及闸阀
,具体涉及一种软密封闸阀用新型双密封橡胶闸板。
技术介绍
软密封闸阀,软密封闸阀的启闭件是闸板,闸板的运动方向与流体方向相垂直,闸阀只能作全开和全关,不能作调节和节流,目前,当闸阀出现密封问题时,在低压时,容易泄露,且需要在停水、停汽的前提下更换密封圈,阀门寿命低,橡胶闸板通过挤压变形密封失效,容易金属阀杆与橡胶闸板容易脱离,降低使用寿命。
技术实现思路
为克服所述不足,本技术的目的在于提供一种软密封闸阀用新型双密封橡胶闸板。本技术解决其技术问题所采用的技术方案是:一种软密封闸阀用新型双密封橡胶闸板,包括闸板本体、阀杆,所述闸板本体包括阀瓣、连接部,所述阀瓣的顶部设有连接部,所述连接部内设有方形预留孔,方形预留孔的顶面设有螺纹孔,所述阀瓣的底部对称设有两个独立的底密封面,底部密封面与阀体的底部接触,靠压缩底密封面的橡胶进行密封,阀瓣的两侧对称设有两个独立的侧密封面,两个独立的侧密封面之间形成凹槽轨道,凹槽轨道内嵌入高分子材料做成的导轨。具体地,所述阀杆的下端穿过螺纹孔,阀杆的下端装配有方形金属螺母,方形金属螺母放置在方形预留孔内,阀杆通过外螺纹与螺纹孔相连接。具体地,所述阀瓣的连接部与方形金属螺母采取半松脱连接,非固定式。具体地,所述侧密封面采用共两个独立的金属模板,被橡胶完全硫化包裹。具体地,所述侧密封面与阀体的横截面相匹配。具体地,所述阀瓣下部采取溜槽设计。具体地,所述闸板本体装配在阀体,阀体上设有阀盖,连接部装配在阀盖内,阀盖的顶部设有阀杆通孔,所述阀杆通孔处设有阀杆定位卡环,阀杆通孔上设有压盖,压盖 ...
【技术保护点】
1.一种软密封闸阀用新型双密封橡胶闸板,其特征在于:包括闸板本体、阀杆,所述闸板本体包括阀瓣、连接部,所述阀瓣的顶部设有连接部,所述连接部内设有方形预留孔,方形预留孔的顶面设有螺纹孔,所述阀瓣的底部对称设有两个独立的底密封面,底部密封面与阀体的底部接触,靠压缩底密封面的橡胶进行密封,阀瓣的两侧对称设有两个独立的侧密封面,两个独立的侧密封面之间形成凹槽轨道,凹槽轨道内嵌入高分子材料做成的导轨。
【技术特征摘要】
1.一种软密封闸阀用新型双密封橡胶闸板,其特征在于:包括闸板本体、阀杆,所述闸板本体包括阀瓣、连接部,所述阀瓣的顶部设有连接部,所述连接部内设有方形预留孔,方形预留孔的顶面设有螺纹孔,所述阀瓣的底部对称设有两个独立的底密封面,底部密封面与阀体的底部接触,靠压缩底密封面的橡胶进行密封,阀瓣的两侧对称设有两个独立的侧密封面,两个独立的侧密封面之间形成凹槽轨道,凹槽轨道内嵌入高分子材料做成的导轨。2.根据权利要求1所述的一种软密封闸阀用新型双密封橡胶闸板,其特征在于:所述阀杆的下端穿过螺纹孔,阀杆的下端装配有方形金属螺母,...
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。