104results about How to "Simplify the external structure" patented technology

The invention relates to a one-step folding bicycle, comprising a bicycle frame, a handlebar arranged at the front upper part of the bicycle frame, and a saddle arranged at the rear lower part of the bicycle frame. The one-step folding bicycle is characterized in that a handlebar stem capable of rotating back and forth relative to the bicycle frame and a front fork which is capable of rotating back and forth relative to the bicycle frame and is arranged under the handlebar stem are arranged at the front end of the bicycle frame, a front and a rear saddle posts capable of rotating back and forth relative to the bicycle frame are arranged at the rear end of the bicycle frame, the front and rear ends of the saddle are respectively hinged with the upper ends of the front and rear saddle posts, the upper end of the handlebar stem is hinged with the front end of a first connecting rod, the rear end of a second connecting rod is connected with the lower end of the rear saddle post and rotates synchronously therewith, and the rear end of the first connecting rod is hinged with the front end of the second connecting rod. Compared with the prior art, the one-step folding bicycle has the advantages that the handlebar and the saddle can be folded synchronously, so that the folding is convenient; with the bicycle frame consisting of a first and a second bicycle frames, the integral structure of the bicycle is firm, and all parts are located between the first and second bicycle frames after the bicycle is folded, thereby causing the external structure of the bicycle to be simple.

The invention provides an electric fuel pump assembly, including a bottom barrel, an electric fuel pump, an oil level sensor, an oil outlet pipeline, and an oil return pipeline; the electric fuel pump is arranged in the bottom barrel; the bottom of the bottom barrel is provided with a one-way oil inlet valve; the oil outlet pipeline is connected to the oil outlet of the electric fuel pump; the top of the electric fuel pump assembly is provided with an upper cover that matches the fuel tank port, and the oil outlet of the oil outlet pipeline and the oil inlet of the oil return pipeline are set on the upper cover of the fuel tank port ;The oil return pipeline is connected with a pressure regulating valve; the oil level sensor is fixed on the inner shell of the bottom barrel; the upper cover of the fuel tank port is provided with a combined junction box, and the wiring of the oil level sensor and the electric fuel pump are connected to the combined junction box through connectors middle. The invention centrally arranges the pressure regulating valve and the oil level sensor, and also has the oil storage function, has a compact structure, is convenient for installation and maintenance, saves costs, and reduces the probability of fuel leakage.