2results about How to "Optimal Design Structure" patented technology

A tool integrated cabinet for rail transit vehicles includes a shell, a pullable support frame, a damping universal roller and a folding seat storage cabin. The support frame is linearly guided through the sliding cooperation of a T-shaped guide rail and a clamping block. The stability of the support frame in a vehicle vibration environment is improved by the antiskid rubber material and damping design of the roller. The inside of the support frame adopts a modular partition structure. A fire extinguisher is fixed through the placement grooves of first and second support plates. The bottom plate cooperates with a guide groove to realize the quick taking and placing of an escape ladder. A groove is internally provided with a slide rail type folding seat storage cabin. The folding seat storage cabin is linked with a storage guide plate through a handle passage to realize the vertical partition management of emergency equipment and auxiliary tools. In addition, the conical self-locking structure and spring elastic pre-tightening mechanism of the plug rod and plug plate can effectively prevent the accidental sliding of the support frame. The combination innovation of the T-shaped guide rail, damping roller and folding cabin integration significantly enhances the safety and convenience of rail transit emergency equipment management.

This invention discloses a sequential hydrogen supply valve control device, including a gas filling module and a valve control module. The first valve control component includes a first valve body and a first valve core. The first valve core divides the interior of the first valve body into a first high-pressure chamber, a first low-pressure chamber, and a first detection chamber. The first valve body is also provided with a first high-pressure inlet communicating with the first high-pressure chamber, a first low-pressure inlet communicating with the first low-pressure chamber, a first gas detection port communicating with the first detection chamber, and a first gas outlet. The first low-pressure inlet is used to connect with a first gas storage source, the first high-pressure inlet is used to connect with a second gas storage source, the first gas outlet supplies hydrogen to the gas-using equipment, and the first gas detection port is used to connect with the gas-using equipment so that the first detection gas pressure in the first detection chamber can reflect the gas pressure contained in the gas-using equipment. The pressure difference between the first detection gas pressure and the first supply gas pressure can drive the first valve core to move in the first valve body. This design has a simple structure and low layout and maintenance costs.