The utility model discloses a four-way reversing ball valve, which comprises a valve body and an upper valve rod, the upper end of the valve body is fixedly connected with a valve cover, the upper end of the valve cover is fixedly connected with a supporting cylinder, the upper end of the supporting cylinder is rotationally connected with a hand wheel, the hand wheel is driven and connected with the upper valve rod, the lower end of the upper valve rod is successively penetrated through the supporting cylinder and the valve cover and is fixedly connected with a valve ball, and the lower end of the valve ball The lower stem is fixedly connected with the valve body through rotation, the lower end of the lower stem is rotationally connected with a back cover, the back cover is fixedly connected with the valve body, and the upper stem is rotationally connected with the valve cover through a self-lubricating sleeve. The utility model prevents the rotary joint of the upper valve rod and the valve cover from rusting by setting the oil storage tank, provides the lubrication effect by setting the packing and the self-lubricating sleeve, can easily screw the upper valve rod, saves time and labor, prevents the valve internal leakage caused by the abrasion of the contact between the valve ball and the valve seat by setting the wear-resistant ring, and improves the service life of the four-way reversing valve.
【技术实现步骤摘要】
一种四通换向球阀
本技术涉及阀门
,尤其涉及一种四通换向球阀。
技术介绍
阀门被广泛应用于生活和工业生产中,是人们生活或生产中必不可少的器具。在四个管道连接处,大多采用四通球阀来控制管道内介质的流动,既方便又迅速,实现一阀多用的效果。四通换向球阀相较于其他阀门具有流体阻力小、密封性好和使用寿命长的优点。现有的四通换向球阀存在以下不足之处:1、阀杆和阀盖紧密贴合,转动时较为费力,且在环境较差的工厂内,阀杆和阀盖的转动缝隙间易被污渍和锈蚀物填充,导致转动调节四通换向阀时费时费力;2、在调节四通换向阀时,阀球会与阀体产生摩擦,阀球与阀体密封接触处磨损较严重时,则无法保证四通换向阀的密封性,降低了其使用寿命。
技术实现思路
本技术的目的是为了解决现有技术中阀杆转动较难的问题,而提出的一种便于调节的四通换向球阀。为了实现上述目的,本技术采用了如下技术方案:一种四通换向球阀,包括阀体和上阀杆,所述阀体上端固定连接有阀盖,所述阀盖上端固定连接有支撑筒,所述支撑筒上端转动连接有手轮,所述手轮与上阀杆传动连接,所述上阀杆的下端依次贯穿支撑筒和阀盖并固定连接有阀球,所述阀球下端固定连接有下阀杆,所述下阀杆与阀体转动连接,所述下阀杆下端转动连接有后盖,所述后盖与阀体固定连接;所述上阀杆通过自润滑套与阀盖转动连接,所述自润滑套固定套接在上阀杆外,所述自润滑套上方设有填料,所述填料填充在上阀杆和阀盖间,所述填料上方设有填料压盖,所述填料压盖固定套接在上阀杆外并与支撑筒转动连接,所述支撑筒内设有储油腔,所述储油腔的侧壁上设有连通外界的进油孔,所述上阀杆侧壁上设有连通储油腔的条形油槽;所 ...
【技术保护点】
1.一种四通换向球阀,包括阀体(1)和上阀杆(2),所述阀体(1)上端固定连接有阀盖(3),所述阀盖(3)上端固定连接有支撑筒(4),所述支撑筒(4)上端转动连接有手轮(5),所述手轮(5)与上阀杆(2)传动连接,所述上阀杆(2)的下端依次贯穿支撑筒(4)和阀盖(3)并固定连接有阀球(6),所述阀球(6)下端固定连接有下阀杆(7),所述下阀杆(7)与阀体(1)转动连接,所述下阀杆(7)下端转动连接有后盖(8),所述后盖(8)与阀体(1)固定连接,其特征在于:所述阀体(1)内侧壁上固定连接有限位环(11)和阀座(12),所述限位环(11)与阀座(12)固定连接,所述阀座(12)在与限位环(11)连接处嵌设有环形圈(13),所述阀座(12)内嵌设有耐磨环(14),所述耐磨环(14)与阀球(6)转动连接;所述上阀杆(2)通过自润滑套(21)与阀盖(3)转动连接,所述自润滑套(21)固定套接在上阀杆(2)外,所述自润滑套(21)上方设有填料(22),所述填料(22)填充在上阀杆(2)和阀盖(3)间,所述填料(22)上方设有填料压盖(23),所述填料压盖(23)固定套接在上阀杆(2)外并与支撑筒 ...
【技术特征摘要】
1.一种四通换向球阀,包括阀体(1)和上阀杆(2),所述阀体(1)上端固定连接有阀盖(3),所述阀盖(3)上端固定连接有支撑筒(4),所述支撑筒(4)上端转动连接有手轮(5),所述手轮(5)与上阀杆(2)传动连接,所述上阀杆(2)的下端依次贯穿支撑筒(4)和阀盖(3)并固定连接有阀球(6),所述阀球(6)下端固定连接有下阀杆(7),所述下阀杆(7)与阀体(1)转动连接,所述下阀杆(7)下端转动连接有后盖(8),所述后盖(8)与阀体(1)固定连接,其特征在于:所述阀体(1)内侧壁上固定连接有限位环(11)和阀座(12),所述限位环(11)与阀座(12)固定连接,所述阀座(12)在与限位环(11)连接处嵌设有环形圈(13),所述阀座(12)内嵌设有耐磨环(14),所述耐磨环(14)与阀球(6)转动连接;所述上阀杆(2)通过自润滑套(21)与阀盖(3)转动连接,所述自润滑套(21)固定套接在上阀杆(2)外...
【专利技术属性】
技术研发人员:王志祥,
申请(专利权)人:浙江东日阀门有限公司,
类型:新型
国别省市:浙江,33
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