Abstract: The present disclosure provides an ornament, including: a crystal ball; and a support seat, the support seat being provided with a bearing portion, and a bearing recess and a mounting opening being provided in the top of the bearing portion, wherein the bearing recess receives at least part of a lower portion of the crystal ball, and the mounting opening is located at the top of the bearing recess, is in communication with the bearing recess, and allows at least part of the lower portion of the crystal ball to enter and exit the bearing recess vertically; and the support seat having a mounting hole running through the support seat from front to rear, wherein the mounting hole is located above the bearing recess, is in communication with the bearing recess via the mounting opening, and receives a remaining portion of the crystal ball exposed from the bearing recess, a distance between a hole wall part of the mounting hole at the highest point and the mounting opening being smaller than a diameter of the crysta

Abstract: A cleaning method and a cleaning tool for a negative-pressure component for battery formation are provided. The cleaning tool includes a liquid storage tank for storing a cleaning liquid, a power member connected with the liquid storage tank, a storage cup, and a liquid guide member. The storage cup is communicated with the negative-pressure component through the guide member. The cleaning tool has a first pipeline defining a flow from the liquid storage tank to the storage cup. The power member provides power for the flow of the cleaning liquid in the first pipeline to inject the cleaning liquid in the liquid storage tank into the storage cup. The cleaning liquid is sucked into the negative-pressure component from the storage cup by an existing negative-pressure power source of the negative-pressure component. Air sucked by the negative-pressure power source is mixed with the cleaning liquid in the negative-pressure component.

Abstract: A cleaning method and a cleaning tool for a negative-pressure component for battery formation are provided. The cleaning tool includes a liquid storage tank for storing a cleaning liquid, a power member connected with the liquid storage tank, a storage cup, and a liquid guide member. The storage cup is communicated with the negative-pressure component through the guide member. The cleaning tool has a first pipeline defining a flow from the liquid storage tank to the storage cup. The power member provides power for the flow of the cleaning liquid in the first pipeline to inject the cleaning liquid in the liquid storage tank into the storage cup. The cleaning liquid is sucked into the negative-pressure component from the storage cup by an existing negative-pressure power source of the negative-pressure component. Air sucked by the negative-pressure power source is mixed with the cleaning liquid in the negative-pressure component.