Spray head capable of automatically resetting, automatic resetting method and mine watering cart

The invention discloses a spray head capable of automatically resetting, an automatic resetting method and a mine watering cart. The spray head comprises a hollow shell and a resetting mechanism. The hollow shell is provided with at least one water inlet and at least one water outlet; the reset mechanism is installed in the shell, when water is not supplied to the spray head, the spray head is kept in a closed state under the action of the reset mechanism, after water is supplied to the spray head, the reset mechanism is opened under the action of water supply pressure, and the spray head is switched to be in an open state to start spraying water. The situation that after water supply is stopped, the spray head continues to discharge water is avoided, the water spraying response speed of the spray head is increased, and waste of water sources is avoided. 本发明公开了一种可自动复位的喷头、自动复位方法及矿用洒水车，包括中空的壳体和复位机构；中空的壳体具有至少一个进水口和至少一个出水口；复位机构安装在所述壳体中，当不给喷头供水时喷头在复位机构的作用下保持关闭状态，当给喷头供水后，复位机构在供水的压力作用下打开，喷头切换至开启状态开始喷水。本发明避免了停止供水后喷头还