5results about How to "Uniform injection" patented technology

This utility model discloses a turn signal assembly with uniform brightness and a high safety factor, including a turn signal cup and a front turn signal light guide plate. The turn signal cup has a turn signal hole for mounting the turn signal. The turn signal light guide plate has a main light guide plate facing the turn signal hole, an inner light guide plate and an outer light guide plate, located on the left and right sides of the main light guide plate and bent inwards respectively. The angle between the inner light guide plate and the main light guide plate is acute, and the angle between the outer light guide plate and the main light guide plate is obtuse. A light guide ridge is provided on the inner side of the turn signal light guide plate, and an inwardly recessed stepped portion is provided on the bottom of the outer side. This utility model's main light guide plate, in conjunction with the inner acute-angled and outer obtuse-angled light guide plate portions, expands the light diffusion range through refraction at different angles, avoiding the central bright spot or edge dark area of ​​traditional turn signals. The horizontal ridges of the main light guide plate work in conjunction with the gradually widening ridges of the inner / outer light guide plates, ensuring that the light is emitted uniformly after multiple refractions, resulting in a more balanced brightness distribution and improved signal recognition.

The utility model relates to a kind of surface light emitting optical systems, including LED light source component, support and at least one light guide plate, the LED light source component and any light guide plate are installed on the support;Any the end face of the light guide plate is light entrance, and the side surface is respectively light exit and back surface opposite to light exit;Multiple recesses in sheet shape are arranged on the back surface;The light emitted by the LED light source component can enter light guide plate from light entrance, and uniform emission is carried out to light exit after the concave reflection of the recess, then uniform emission is carried out from light exit;Compared with prior art, the utility model uniform emission is carried out to light exit, and avoids part of light loss, improves light efficiency, reduces energy consumption.

The utility model discloses a sand shooting cylinder for vertical sand shooting molding machine relates to vertical sand shooting molding machine technical field, including the outer tube, be provided with the inner net tube in the outer tube, the inner net tube outer wall is wound with the air -permeable net inner wall fixed with the air inlet component for blocking sand to pass, the air inlet component with the air -permeable hole on the inner net tube intercommunication, fixed and intercommunication have the pneumatic vibration subassembly of the inner net tube center area on the air inlet component. The utility model can improve the sand flowability of center area to improve sand shooting effect.

The utility model discloses a surgical nursing disinfection device, including the lamp stand, the lamp stand is equipped with the lamp stand and the connecting head, the both ends of lamp stand are all connected with connecting head, be equipped with the insertion cavity in connecting head, disinfection lamp subassembly, including two disinfection lamp groups and a plurality of guide board, two disinfection lamp group insertion respectively inserts into the insertion cavity of two connecting heads, the top of each disinfection lamp group all is equipped with a plurality of guide board, a plurality of guide board interval distribution in the length direction of disinfection lamp group, and guide board extends in the width direction of disinfection lamp group. The utility model discloses a surgical nursing disinfection device, it can install the lamp stand through the lamp stand, and the connecting head of lamp stand connects disinfection lamp group in the mode of insertion, with the guide board of disinfection lamp group top guiding guide light and exporting along the width direction, improve the irradiation surface of disinfection lamp group.

This invention discloses a crystalline polyimide / polyimide composite material, its preparation method, and its applications. The method involves first uniformly mixing phenylhexacarboxylic acid trihydride with a diamine monomer, followed by a solid-phase reaction under argon atmosphere protection. After the reaction, the product is immersed in a polar solvent to obtain crystalline polyimide. Then, the crystalline polyimide is added to an organic solution of polyamic acid, subjected to ultrasonic treatment in an ice-water bath, and subsequently thermosetting to obtain the crystalline polyimide / polyimide composite material. The crystalline polyimide in this composite material has a layered two-dimensional COF structure, giving it relatively high thermal conductivity, heat resistance, and high-temperature mechanical properties. Introducing the crystalline polyimide into the polyamic acid solution utilizes the special interfacial compatibility between the amino groups in the crystalline polyimide and the anhydrides in the polyamic acid to react, solving the problem of difficult processing and effectively expanding its application range.