4results about How to "Aging resistant" patented technology

This utility model provides an LED display screen with a novel connection method for a power control box, including a bracket, a power control box, and four LED unit screens. The power control box is located on the back of the bracket, and four electrical plugs are distributed on both sides of the power control box. The four LED unit screens are assembled on the front of the bracket, and each of the four LED unit screens has an electrical socket on its back. The four electrical plugs on both sides of the power control box are respectively plugged into the electrical sockets on the back of the four LED unit screens. In this utility model, the power control box is connected to the electrical sockets on the back of the four LED unit screens through four electrical plugs. Compared with the prior art where the power control box is connected to each LED unit screen one by one using multiple ribbon cables, the electrical plugs and sockets will not crack due to exposure to sunlight, thus having the advantage of aging resistance, thereby enhancing the stability of the connection and ensuring the stability of the entire LED display screen.

The application discloses a sealing mechanism with automatic rotating opening and closing function and belongs to the technical field of cabin sealing structure. The sealing mechanism comprises a cylinder body and sealing assemblies arranged on both sides of the cylinder body. The sealing assembly comprises a baffle, a pressing plate, a rotating pin shaft and an elastic assembly. The elastic assembly is arranged on the baffle and fixedly connected with the cabin at the other end. The baffle is provided with a first connecting sleeve. One end of the pressing plate is sleeved on the first connecting sleeve. The rotating pin shaft is coaxially arranged in the pin shaft through hole of the baffle, the first connecting sleeve and the pressing plate. The locking piece arranged on the side of the pressing plate is fixedly connected with the part of the rotating pin shaft inserted into the pressing plate, so that the pressing plate is fixedly assembled on the baffle. The conductive strip is glued on the arc end surface of the baffle and the pressing plate in contact with the cylinder body. The application realizes the functions of quick sealing and automatic resetting of the sealing mechanism without manual and mechanical actions.

The application discloses a radial lead capacitor fixing seat, which comprises a cup-shaped body with an open upper end for mounting a capacitor, mounting holes arranged on both sides of the cup-shaped body, an auxiliary positioning column inserted into a corresponding through-hole pad on a PCB through the mounting hole and welded and fixed, and a silica gel gasket arranged at the inner bottom of the cup-shaped body, wherein the silica gel gasket and the cup-shaped body are provided with pin holes, and the capacitor pins are inserted into the corresponding through-hole pad on the PCB through the pin holes and welded and fixed. Through the design of the cup-shaped body and the silica gel gasket, part of the vibration of the PCB and the capacitor can be absorbed, the vibration amplitude of the capacitor is reduced, the mounting and welding stress of the capacitor is reduced, and the working stability and service life of the capacitor in the application environment with high vibration and high component density are improved.

The invention provides an inorganic quartzite plate. The inorganic quartzite plate is prepared from the following raw materials in parts by weight: 48-52 parts of quartz sand, 30-40 parts of quartz powder, 6-9 parts of a reinforcing agent, 24-28 parts of cement, 4-6 parts of active powder, 7-10 parts of a water reducing agent, 3-5 parts of a toughening agent, 1-2 parts of an auxiliary agent and 15-18 parts of water. The invention also provides a preparation method of the inorganic quartzite plate. The inorganic quartzite plate provided by the invention has relatively high hardness and relatively good toughness, fracture resistance and water resistance.