66results about How to "Inlaid firmly" patented technology

The invention discloses a telescopic rotary mechanism of an automobile sound panel. Structurally, the telescopic rotary mechanism comprises a telescopic rotary base, a sound panel, a panel protectivecover, a panel protective groove, and a locking screw, wherein the panel protective cover is a cuboid, the panel protective groove integrally penetrates through from front to rear in the middle, the panel protective groove is a trapezoid groove, the upper bottom surface faces the rear side, the panel protective cover is locked with the sound panel, and four front corners of the sound panel are locked with the telescopic rotary base through locking screws. When the mechanism is used, the mechanism is rotated in a positioned place through springs, troughs and clamps of the mechanism, and the panel ejects when being used in a telescopic and rotary manner, so that the panel can be controlled stably when being expanded and rotated, and the sound panel is prevented from moving due to misopertionand is convenient to take out, and is convenient to use.

The invention discloses a tire mold, and belongs to the technical fields of molds. The tire mold comprises a mold body, wherein multiple steel sheets are arranged on the mold body, and are provided with multiple mounting holes penetrating through the steel sheets; pins are inserted in the mounting holes; the extension direction of the pins is perpendicular to the surfaces of the steel sheets; and the pins are embedded in the mold body. The invention further discloses a manufacturing method of the tire mold, which enables the steel sheets and the mold body are firmly combined together and are not easy to separate, prolongs the service life of the tire mold, and is widely applied to the manufacturing of the tire mold.

The invention discloses a high-performance oxygen reduction MnO2-Mn3O4 / carbon nanotube composite catalyst and a preparation and an application thereof. The composite catalyst is prepared by embedding MnO2 nanorods and Mn3O4 nanoparticles into meshes of a carbon nanotube network and / or depositing the MnO2 nanorods and the Mn3O4 nanoparticles on the surface of a carbon nanotube. The preparation method comprises the steps of: dissolving or dispersing potassium permanganate, ammonium chloride and oxidized carbon nanotube into water for hydrothermal reaction; and carrying out cooling, suction filtration, washing and drying on the hydrothermal reaction product to obtain the high-performance oxygen reduction MnO2-Mn3O4 / carbon nanotube composite catalyst. The preparation method is simple and beneficial to industrial production; and the prepared MnO2-Mn3O4 / carbon nanotube composite catalyst is applied to a fuel cell, has the characteristics of high activity and good stability, has approximate overall performance in comparison with a 20wt%Pt / C commercial catalyst and has a good application prospect.

The invention relates to a two-color cable sheath extruded mould with an improved structure, comprising a mould core unit (1) and a mould cover unit (2). The two-color cable sheath extruded mould with the improved structure is characterized by also comprising a mould sleeve unit (3), wherein a mould sleeve side wall (334) is provided with an injection molding hole (333) longitudinally passing through the mould sleeve side wall (334), and a mould sleeve hole (336) formed inside the mould sleeve side wall (334) is communicated with a mounting hole (331) on the front end surface (335) of the mould sleeve unit (3); the surface of the mould cover unit (2) is provided with a diffluent groove (33) and a color separation ring (23), and both of the diffluent groove (33) and the color separation ring (23) are provided with color separation holes (34) passing through the wall of a mould cover body (24) from top to bottom; the diffluent groove (33) and the color separation ring (23) are convergedinto the mould cover body (24), and the diffluent groove (33) and the color separation ring (23) both does not pass through the wall body of the mould cover body (24); the color separation ring (23) is spirally distributed along the surface of the mould cover body (24); and the inner surface of the mould sleeve side wall (334) is provided with a thread matched with screw teeth on the outer surface of the mould cover body (24). The invention has the advantages of simple structure, more even distribution of colored bands and more beautiful produced light, cables and pipelines and easy installing and debugging, and conforms to the principle of viscous body hydromechanics.