2results about How to "Few accessories" patented technology

The present application belongs to the technical field of water pump, and relates to a pump capable of increasing flow and pressure, comprising a pump body, a water inlet and a water outlet arranged on the pump body, an impeller and a water outlet cover arranged in the pump body and used for guiding pressurized fluid to the pump cavity, the water inlet and the inlet of the impeller being communicated through a flow channel body, the flow channel body comprising a throat pipe and a nozzle, the water outlet and the nozzle being respectively communicated with the pump cavity, the outer side of the nozzle being provided with a conversion turbine driven by a power device in two directions, the water pump being in a flow-increasing mode and a pressure-increasing mode respectively when the conversion turbine rotates in different directions, the conversion turbine driving fluid to flow in the opposite direction of the nozzle in the flow-increasing mode, and the conversion turbine driving fluid to flow in the direction of the nozzle in the pressure-increasing mode. The pump capable of increasing flow and pressure can select a high-flow mode or a high-lift mode according to actual requirements.

The utility model relates to earphone technical field especially is earphone supporting arm mounting structure and head -wearing earphone, earphone supporting arm mounting structure, including ear shell, the inside of this ear shell is provided with first mounting base, first connecting seat can swing setting in first mounting base, first elastic part sets up in ear shell, the middle part of first elastic part is worn in first connecting seat, and first connecting seat is limited in first mounting base, and the arm is inserted into first connecting seat, and is locked together with first connecting seat. When arm assembly, first connecting seat swing setting in first mounting base, the middle part of first elastic part is limited in first mounting base with first connecting seat, and the arm is inserted into first connecting seat, and the mounting structure is simple, and the fittings are few, and the manufacturing cost is low, and the assembling efficiency is higher. The innovative design of this kind of arm, first connecting seat, first elastic part, ear shell structure makes the space required by arm structure greatly reduce, can satisfy more modelling, and can idle more space to stack design.