Dumper lifting valve device

The utility model discloses a lifting valve device of a dumper, and belongs to the technical field of lifting valves. Comprising a lifting valve body, a plurality of connecting ports are connected to the two sides of the lifting valve body, first sliding grooves distributed in a mirror image mode are formed in the top of the lifting valve body, clamping grooves are formed in one sides of the bottoms in the first sliding grooves, a fixing hole is formed in one side of the top of the lifting valve body, and a protection plate is connected to the top of the lifting valve body; after the lifting valve body is installed on an oil tank through the bolt, the bolt can be protected, and the situation that the lifting valve body is inconvenient to disassemble by workers in the later period due to the fact that the bolt is rusted is avoided. 本实用新型公开了一种自卸车举升阀装置，属于举升阀技术领域。包括举升阀本体，所述举升阀本体两侧连接有若干个连接口，所述举升阀本体顶部开设有镜像分布的第一滑槽，所述第一滑槽内底部一侧均开设有卡槽，所述举升阀本体顶部一侧开设有固定孔，所述举升阀本体顶部连接有防护板；本实用新型当螺栓将举升阀本体安装在油箱上后，可以对螺栓进行保护，避免螺栓发生锈迹而导致工作人员后期对举