Lifting valve and hydraulic lifting system

The utility model discloses a lifting valve (1), which is characterized by comprising a main valve body (10), a valve body (20) and a valve body (30), and a cylinder member (11) connected to the main valve body (10); the main valve body (10) comprises a valve cavity (100), a valve element (101), a first oil way (102) and a second oil way (103). Wherein one part of the valve core (101) is arranged in the valve cavity (100); the other part of the valve element (101) is contained in the air cylinder component (11). Wherein a part of the first oil path (102) is arranged below the second oil path (103) and is in fluid communication with the second oil path (103). The utility model further discloses a hydraulic lifting system comprising the lifting valve (1). 本申请公开了一种举升阀(1)，其特征在于，所述举升阀(1)包括：主阀体(10)；和气缸部件(11)，其连接到所述主阀体(10)；其中，所述主阀体(10)包括阀腔(100)、阀芯(101)、第一油路(102)和第二油路(103)；其中，所述阀芯(101)的一部分设置在所述阀腔(100)中；其中，所述气缸部件(11)容纳所述阀芯(101)的另一部分；其中，所述第一油路(102)的一部分设置在所述第二油路(103)下方并且与所述第二油路(103)流体连通。本申请还公开了一种包括所述举升阀(1)的液压举升系统。