Pump at edge with installation O shape ring sealing member

The utility model relates to a pump at edge with installation O shape ring sealing member, the fluid pump have the pump case body and with the adjacent entry wall portion of the pump case body. Entrywall portion has and roughly is on a parallel with the extension of the internal surface of the pump case body. The motor holds in the pump case body. This openly includes the impeller to the motor response. The impeller keeper is neighbouring the impeller sets up to including arc corner portion. O shape loop mapping is in arc corner portion. The circulating application of O shape add the out of plumb in the power of the internal surface of the pump case body is with right the internal surface of the pump case body forms sealedly with the extension of the wall portion that enters the mouth. 本公开涉及种具有安装O形环密封件的边缘的泵，所述流体泵具有泵壳体和与泵壳体相邻的入口壁部。所述入口壁部具有大致平行于所述泵壳体的内表面的延伸部。马达容纳在所述泵壳体中。本公开包括对马达响应的叶轮。叶轮保持件邻近所述叶轮进行设置，并且包括弧形拐角部。O形环定位在所述弧形拐角部。所述O形环施加不垂直于所述泵壳体的内表面的力，以对所述泵壳体的内表面和入口壁部的延伸部形成密封。