The utility model discloses a three-bridge relay valve, which comprises an upper valve body and a lower valve body. The upper valve body is provided with a control port connected with the control gas source, and the lower valve body is provided with an intake port connected with the supply gas source, an air supply port connected with the gas storage cylinder, an air outlet connected with the brake system and an exhaust port connected with the outside world. The middle position of the valve body is provided with a drainage outlet, and the drainage outlet is provided with a filter; a pressure regulating valve connected with the control outlet is also included. A regulating bolt is arranged on the pressure regulating valve, and a pressure regulating spring is arranged in the pressure regulating valve. One end of the pressure regulating spring is fixed on the adjustment bolt, the other end is fixed on the diaphragm assembly, and a valve core is arranged below the diaphragm assembly. The utility model is equipped with a drain port on the closed relay valve to realize the automatic drainage function, and a pressure regulating valve is added to speed up the brake braking process, without pulling tires, and in rainy and snowy days, it is more skid-proof and rollover-proof.
【技术实现步骤摘要】
一种三桥继动阀
本技术属于汽车制动
,具体涉及一种应用于挂车或半挂车车辆制动系统中的三桥继动阀。
技术介绍
继动阀属于汽车气刹制动系统的一部分,在载重汽车的制动系统里,继动阀起缩短反应时间和压力建立时间的作用。继动阀用于长管路的末端,使储气筒的压缩空气快速充满制动气室。目前三桥继动阀广泛使用在汽车制动系统中,尤其是在挂车或半挂车制动系统中使用更加普遍。申请人曾申请过名为《一种三桥继动阀》的专利,申请号为2012201789478,本技术是对该申请的进一步改进。该项申请中,申请人公开了一种三桥继动阀,包括上阀体和下阀体,所述上阀体上设有与控制气源相连通的控制口,所述下阀体上设有与供气气源相连通的进气口、与储气筒相连接的供气口、与刹车系统相连的出气口及与外界相通的排气口,所述下阀体内还装有活塞,活塞外套有隔盘,其中下部置于紧急活塞内,所述紧急活塞下端口内装有阀门与阀门座,并通过衬套安装于下阀体内,所述下阀体上还设有快放阀,该快放阀具有入口和出口,其入口与下阀体的内腔相通,出口与外界相通;快放阀的内壁上还开有与所述出气口相通的通孔;快放阀内设有一导流孔,该导流孔为 ...
【技术保护点】
1.一种三桥继动阀,包括上阀体和下阀体,所述上阀体上设有与控制气源相连通的控制口,所述下阀体上设有与供气气源相连通的进气口、与储气筒相连接的供气口、与刹车系统相连的出气口及与外界相通的排气口,所述下阀体内还装有活塞,活塞外套有隔盘,其中下部置于紧急活塞内,所述紧急活塞下端口内装有阀门与阀门座,并通过衬套安装于下阀体内,所述下阀体上还设有快放阀,该快放阀具有入口和出口,其入口与下阀体的内腔相通,出口与外界相通;快放阀的内壁上还开有与所述出气口相通的通孔;快放阀内设有一导流孔,该导流孔为锥形,内部贯通;导流孔的外端与快放阀的出口相配合,中间设有一密封圈,导流孔的内端与快放阀的入 ...
【技术特征摘要】
1.一种三桥继动阀,包括上阀体和下阀体,所述上阀体上设有与控制气源相连通的控制口,所述下阀体上设有与供气气源相连通的进气口、与储气筒相连接的供气口、与刹车系统相连的出气口及与外界相通的排气口,所述下阀体内还装有活塞,活塞外套有隔盘,其中下部置于紧急活塞内,所述紧急活塞下端口内装有阀门与阀门座,并通过衬套安装于下阀体内,所述下阀体上还设有快放阀,该快放阀具有入口和出口,其入口与下阀体的内腔相通,出口与外界相通;快放阀的内壁上还开有与所述出气口相通的通孔;快放阀内设有一导流孔,该导流孔为锥形,内部贯通;导流孔的外端与快放阀的出口相配合,中间设有一密封圈,导流孔的内端与快放阀...
【专利技术属性】
技术研发人员:屠乐贤,
申请(专利权)人:诸暨市枫桥江淮汽车配套厂,
类型:新型
国别省市:浙江,33
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