6results about How to "Low unit price" patented technology

This utility model discloses a structure for a secondary lining in a mined tunnel that also serves as a shield tunneling starting reaction device. It includes a first primary support, a first secondary lining inside the first primary support, a second secondary lining on the sides of the first primary support and the first secondary lining, mortar anchor bolts on the outer side of the second secondary lining, a second primary support outside the second secondary lining, a shield machine front face on the right side of the first primary support, fiberglass anchor bolts inside the shield machine front face, and a concrete island platform at the bottom of the inner wall of the first secondary lining. The unit price of concrete is much lower than that of steel, and by utilizing the stress characteristics of concrete, costs are saved. Using a reinforced concrete structure reduces the structural dimensions and working space of the steel support, avoiding large-scale excavation. Furthermore, the reinforced concrete ring beam can later serve as a permanent secondary lining structure, reducing subsequent demolition, cutting, and other procedures and labor costs, further saving costs.

The utility model provides a tail light and electric motor car relates to car lamp technical field. The utility model provides a tail light includes bottom shell, light source subassembly and lamp shade, bottom shell is connected with lamp shade, and the end surface of lamp shade has the even light area, and the side wall has the light leakage prevention area, light source subassembly includes the substrate and a plurality of light source spare, the substrate is located between bottom shell and lamp shade, and is installed in bottom shell, a plurality of light source spare interval distribution, and all install in the end surface of substrate towards lamp shade, the light emitting angle of light source spare is arranged as alpha, 90 DEG >= alpha >= 30 DEG, with the distance of the light emitting angle coincidence of two light source spare adjacent is P, with the distance between the end surface of substrate and lamp shade is H, H >= P. The utility model provides a tail light solves the technical problem of low brightness or high development design cost in prior art.

The utility model relates to the field of motors, in particular to a rotor casing, an external rotor motor and an electronic fan, the rotor casing comprises a cylindrical outer casing and a shaft sleeve assembly coaxially arranged in the outer casing, and an accommodating cavity is formed in the shaft sleeve assembly and used for mounting a rotating shaft of a rotor; the shaft sleeve assembly comprises a shaft sleeve body and a connecting part, the connecting part is arranged on the surface of the shaft sleeve body and extends outwards in the radial direction of the shaft sleeve body, the connecting part is welded and fixed to one end of the outer shell, and the connecting part is arranged at the end, adjacent to the outer shell, of the shaft sleeve body; the connecting part is in an annular plate shape, and an inner ring of the connecting part is welded and fixed with the surface of the shaft sleeve body. The integral stretching forming mode of the rotor casing in the prior art is changed into welding and fixing through the outer casing, the shaft sleeve body and the connecting part, high die cost and working hours are saved, unit price is reduced, and the rotor casing is high in product size consistency, uniform in wall thickness and small in unbalance amount.

The utility model discloses a mold which comprises a fixed mold and a movable mold, the fixed mold comprises a fixed mold set plate, a fixed mold core and at least one first pull row, and the first pull row and the fixed mold core are both installed on the fixed mold set plate; the movable mold comprises a movable mold set plate, a push plate, a movable mold core, an ejection mechanism, at least one second pull row and at least one third pull row, the ejection mechanism comprises an ejector pin set plate, a plurality of ejector pins and a plurality of inclined ejectors, the push plate is slidably installed on the side, facing the fixed mold, of the movable mold set plate, the movable mold set plate and the push plate are both connected with the movable mold core, and the movable mold set plate is provided with a penetrating cavity; the ejector pin set plate is located in the penetrating cavity, one end of the ejector pin and one end of the pitched roof are connected with the ejector pin set plate, the other end of the ejector pin and the other end of the pitched roof sequentially penetrate through the movable die set plate, the push plate and the movable die core, one end of the second pull row is slidably connected with the movable die set plate, and the other end of the second pull row is rotationally connected with the push plate. One end of the third pull row is rotationally connected with the ejector pin group plate, the other end of the third pull row is slidably connected with the movable module plate, and the second pull row and the third pull row are both connected with the first pull row through clamping hooks.

The utility model belongs to the technical field of automobile sunroof, especially relate to a lifting mechanism of automobile sunroof system. The utility model mainly by elastic slide, glass support, drive sliding block, front connecting rod, rotating pin, stopper, fixed guide and rear connecting rod constitute, utilize drive sliding block, elastic slide common constitute subassembly Q, utilize glass support, rotating pin riveting, front connecting rod, rear connecting rod common constitute subassembly P, subassembly Q and subassembly P common constitute assembly E, realize functional area integrated design through this mode, reduce the number of parts, reduce the cooperation chain, reduce the control difficulty, under the condition of reaching the same function demand, save the die cost and the part unit price, reduce the control cost.

This application relates to the field of synthesis, disclosing a method and equipment for preparing nitrate ions. The method includes: subjecting a first mixture containing a solid catalyst and a liquid substance to ultrasonic vibration or ball milling under contact with a nitrogen-containing gas to obtain a second mixture containing nitrate ions; filtering the second mixture to remove the solid catalyst to obtain a solution containing nitrate ions. This preparation method can be carried out at room temperature and pressure, greatly reducing energy consumption and achieving zero carbon emissions.