4results about How to "Eliminate Collisions" patented technology

This utility model discloses a chair assembly structure, including a chair frame, a seat, and a backrest. The seat is fixedly connected to the chair frame, and the chair frame has upwardly extending connecting rods on both sides. The backrest is located between two connecting rods. The connecting rods are hollow inside and have an insertion interface facing the backrest. The backrest has connecting parts on both sides, which pass through the insertion interface and are inserted into the connecting rods. A limiting component is fixedly connected to the connecting part, and the limiting component is placed inside the connecting rod and fits against the inner wall of the connecting rod. This structure achieves a stable connection between the backrest and the chair frame through the insertion and engagement of the connecting parts and the connecting rods, combined with the fitting and limiting effect of the limiting component against the inner wall of the connecting rod. Compared with the traditional exposed screw connection method, this structure ensures connection strength while avoiding the problems of exposed screws affecting aesthetics and susceptibility to impacts, improving product safety and aesthetics, and offering convenient assembly and strong practicality.

The invention discloses a PCB collecting machine with an automatic edge searching and positioning mechanism, and relates to the technical field of PCB conveying. The conveying roller set is arranged on the machine base and used for conveying a PCB; the baffle is arranged at the output end of the conveying roller set; the edge searching and positioning mechanism is arranged at the gap of the transmission roller group; the plate collecting assembly is provided with a plate collecting end, and the plate collecting end is provided with an adsorption assembly; wherein the edge searching positioning mechanism is used for positioning the position of the PCB, the adsorption assembly is used for finely adjusting the adsorption position according to the position of the PCB, and the PCB can be prevented from being damaged to the maximum extent in the mode.

The present application relates to a kind of ducted flight lifebuoy, belong to the technical field of aircraft, comprising: framework system, using lifebuoy structure design, with water surface floating capacity;Power and electric power system, including multiple circumferential uniform distribution along the framework system's ducted fan, ducted fan is all wrapped by duct structure, each ducted fan;Flight control system, independently adjust each described ducted fan to control flight attitude;Communication system, for receiving external control instruction and / or sending lifebuoy state information.The present application can solve the collision safety hidden trouble that exists when exposed high-speed rotor approaches the person falling into water, improve reliability, overcome the defects that four power points layout is low in redundancy, single failure is prone to cause out of control crash;And improve the problem of insufficient attitude control stability in complex environment such as wind and wave.

The invention belongs to the technical field of water treatment, and particularly relates to ultrapure water EDI (electrodeionization) equipment which comprises a support and a plurality of module bodies linearly arranged on the support, a front coaming can rotate between a vertical position and a horizontal position, a module maintenance operation space is switched to an external open platform from the inside of the support, and the module maintenance operation space is switched to an external open platform. According to the design, the risks of module collision and interface damage caused by narrow operation space are effectively eliminated, the dash panel is in a vertical state during equipment operation to form a compact enclosure structure, the dash panel is converted into a horizontal platform during maintenance, an extra maintenance channel does not need to be reserved in the layout in advance, and the maintenance cost is reduced. In addition, a set of composite bearing and guiding system is constructed through guiding matching of a first roller and a rolling groove, positioning stopping of a limiting groove and auxiliary supporting of a second roller, and a drawing plate and the module are fixed in an inserted connection mode, so that the module always keeps single-degree-of-freedom linear motion in the moving-out or moving-in process, and the service life of the module is prolonged. The heavy module is ensured to move stably and have a straight track.