6results about How to "Invisibility effect is good" patented technology

The invention relates to an invisible pickup noise reduction earplug and method, and relates to the technical field of noise reduction, the invisible pickup noise reduction earplug comprises a shell, a noise reduction structure, a power supply structure and an invisible pull-out structure; the shell is matched with an ear canal in appearance and is provided with a mounting hole; the noise reduction structure is arranged in the shell and comprises a sound receiving unit, an ARM processing unit and a sound production unit which are electrically connected in sequence; the power supply structure is electrically connected with the ARM processing unit and is used for supplying power to the noise reduction structure; the invisible pull-out structure is mounted at the mounting hole, the invisible pull-out structure comprises a protruding part, and at least part of the protruding part is arranged outside the shell. The device has the effect of being convenient to take out.

The application discloses a kind of invisible optical cable and preparation method thereof, belong to optical cable technical field, including multiple optical fibers, and sleeve is arranged at the periphery of multiple optical fibers, and sleeve is prepared using transparent material.The woven yarn is further provided in the sleeve in the application, and the woven yarn is in mesh structure, and multiple optical fibers are sequentially and side by side arranged in the mesh structure of woven yarn.In the application, the arrangement order of each optical fiber is naturally limited by the mesh structure of woven yarn, and each optical fiber can be accurately distinguished by observing the position of optical fiber in the mesh during construction, without any color marking or special identification equipment, especially suitable for multi-core invisible optical cable.The yarn of woven yarn is extremely thin, and the mesh structure is invisible under normal visibility, the overall transparency of optical cable is high, and it is perfectly integrated with indoor environment, maintaining excellent invisible effect.

The utility model discloses a wig curtain capable of being worn on two sides, and relates to the technical field of wigs. According to the technical scheme, the wig comprises a narrow-edge wig curtain and a PU wig curtain, the narrow-edge wig curtain comprises wig silks, a plurality of lines are sewn on the tops of the wig silks, and the positions, corresponding to the lines, of the two faces of the wig silks are coated with first adhesive layers respectively, so that the wig silks are fixed; the PU wig curtain comprises a wig, the two faces of the top of the wig are coated with second adhesive layers respectively so that the wig can be fixed, gauze adheres to the second adhesive layer on one face of the wig through a third adhesive layer, and the top ends and the bottom ends of the second adhesive layers, the third adhesive layer and the gauze are aligned. The gauze is coated with a fourth adhesive layer, and the first adhesive layer of the narrow-edge wig curtain and the fourth adhesive layer of the PU wig curtain are fixedly bonded together. The wig weft provided by the utility model is convenient for a stylogist to choose to wear different wig weft products according to customer requirements and self technologies, so that the double-sided replacement wearing of one wig weft product is realized.

The utility model relates to the technical field of clothes, in particular to invisible automatic waistline adjusting type suit trousers which comprise a trouser waist, an elastic band is fixedly installed on the inner wall of the trouser waist, a plurality of installation openings are formed in the surface of the elastic band, U-shaped piece frames are fixedly embedded in the installation openings, and moving blocks are installed on the inner walls of the U-shaped piece frames through a plurality of sets of telescopic components. A U-shaped mounting block is fixedly mounted on the surface of the moving block; a mounting belt is fixedly mounted on the inner wall of the trouser waist, an L-shaped clamping block is fixedly mounted on the surface of the end, away from the inner wall of the trouser waist, of the mounting belt, and the clamping block is used for being clamped into the clamping opening of the mounting block. After the suit pants are worn on the body, the elastic belts can be pulled to control the clamping blocks to be clamped into the clamping openings of the mounting blocks at different positions according to the waistline of the suit pants, so that the suit pants are worn, the waistline size of the waist of the pants can be adjusted, the invisible performance is good, and the suit pants cannot be seen from the outside.

This utility model discloses a flush-fitting, concealed fire door, including a door frame. Both sides of the door frame are hinged to door panels via concealed hinges, and the surface of each door panel has a mounting groove. This utility model employs a flush-fitting frame and door panel design, using concealed hinges to connect the door frame and door panel, ensuring that the front of the door frame and the front of the door panel are on the same plane, parallel to the wall. This allows it to seamlessly integrate into the overall decoration style of modern buildings, avoiding the visual abruptness caused by uneven frame and door panel openings in traditional fire doors. This significantly enhances the aesthetics of the building's interior space and achieves an excellent concealed effect. By setting mounting grooves on the door panel surface and fixing fire-resistant sealing strips within the grooves, the sealing performance of the device is effectively improved. Multiple insulation layers work together to greatly enhance the heat insulation performance of the device. This device possesses the advantages of being aesthetically pleasing, having a good concealed effect, excellent sealing performance, and good heat insulation performance.