7results about How to "Low cost performance" patented technology

The invention belongs to the technical field of biology, and discloses a controllable multi-channel three-dimensional dynamic culture system for simulating a cell mechanical microenvironment, the controllable multi-channel three-dimensional dynamic culture system comprises a driving platform, a flexible driver and a cell culture box, the flexible driver is provided with a planar substrate and an outer wall provided with a periodic protrusion structure, and is provided with a hollow structure serving as an air chamber; one end is connected with the air path module through an air hole channel, and the other end is sealed; a groove is also formed in the outer surface of the planar substrate and is used for accommodating cells to be cultured; the flexible driver air chamber can be pressurized or depressurized, so that the bending degree is enhanced or reduced according to the preset frequency, and a mechanical microenvironment is generated. The three-dimensional dynamic culture system constructed by the invention can simulate a cell mechanical microenvironment, realizes dynamic culture of cells, and promotes cell proliferation and expression of specific proteins. In addition, the system can be conveniently designed into multi-channel culture, and has a very good practical application prospect.

The utility model discloses an explosion-proof electric reactor, which comprises an electric reactor main body, an electric reactor coil lining plate, an iron core inner bakelite pad, a section bar, an epoxy resin plate and a corresponding fastener, and the iron core inner bakelite pad and the electric reactor coil lining plate are tightly attached to an upper iron core and a lower iron core of the electric reactor main body. The middle part of the reactor body penetrates through a coil of the reactor body and then is pressed by the section bar in the left-right direction, the section bar is limited up and down and left and right through the fasteners, the whole reactor body is fixed and limited, and the reactor body does not make contact with the ground or any conductive substance around. And downward displacement of the whole reactor due to vibration in long-term use is avoided, and explosion is prevented.

The present invention discloses a fully automatic 3D printing demoulding system, including a main frame, a material storage device, a conveying device, a glue cleaning device and a demoulding and disassembling device; the material storage device is arranged on the right side of the main frame; the conveying device is arranged on the main frame; the glue cleaning device is arranged on the right side of the conveying device; the demoulding and disassembling device is arranged in front of the conveying device, wherein: the conveying device conveys the printing mold on the material storage device to the glue cleaning device for glue cleaning, and the processed printing mold is conveyed to the demoulding and disassembling device by the conveying device for demoulding, and the material is output. The demoulding system of the present invention has good continuity of the overall demoulding process, improves the demoulding efficiency of the 3D printing mold, reduces management costs, and reduces labor costs. It has the characteristics of high degree of full automation, high demoulding efficiency, and high cost performance.

The present invention proposes a control method and system for protecting a vacuum pump, the method comprising: using a temperature sensor to sense the temperature of a pump casing in real time; step 1, according to the temperature of the pump casing, the PLC mainboard of the vacuum pump determines whether it is necessary to turn on the fan of the unit and change the speed; step 2, according to the temperature of the pump casing, the PLC mainboard of the vacuum pump determines whether the motor needs to run to the first speed. The present invention solves the problem of heat dissipation of the unit and the problem of temperature difference between the inside and outside of the unit.

The utility model relates to the field of brakes, and discloses a fixed brake caliper without low-frequency noise, which comprises a caliper body, the caliper body consists of an inner caliper body and an outer caliper body, a jaw is formed on one side, close to a brake disc, of the caliper body, a caliper back is arranged on one side, far away from the brake disc, of the caliper body, and a caliper back opening is formed on the caliper back; a guide rod is installed in the caliper back opening and arranged in the axial direction, and the inner brake block and the outer brake block are arranged on the guide rod in a sleeving mode and located at the two ends of the guide rod. An arc-shaped noise reduction blocking piece is formed on the outer edge of the caliper back opening of the outer brake block, and the outer brake block is located on the inner side of the noise reduction blocking piece. The brake caliper has the advantages of being stable and reliable in structure, neater in appearance, few in parts, free of low-frequency noise and the like.

The invention discloses a vertical shaft impeller with a horizontal inhaul cable and a wind turbine generator. The device comprises an impeller and an inhaul cable assembly. The impeller comprises straight blades, an impeller support and an impeller rotating shaft. The straight blades are tail-swinging type variable wing type blades. The inhaul cable assembly comprises an inhaul cable ring, an inhaul cable supporting piece, an inhaul cable fixing piece and a speed limiting tension spring. Each group of inhaul cable rings is of a closed polygonal structure formed by connecting an inhaul cable and at least one speed limiting tension spring. And each group of inhaul cable rings is arranged on the wing surface, close to the impeller rotating shaft, of the movable wing-shaped part through an inhaul cable fixing piece and an inhaul cable supporting piece. The inhaul cable fixing piece is connected with the inhaul cable supporting piece. Each group of inhaul cable rings is supported by a plurality of inhaul cable supporting pieces and can move relative to the inhaul cable supporting pieces. The inhaul cable rings balance the centrifugal force of the blades mutually, and a proper attack angle is guaranteed. The inhaul cable ring moves relative to the blades and adapts to the change of the distance between the blades, and the speed limiting tension spring can enable the blades to continuously swing outwards under the driving of centrifugal force, so that the aerodynamic force of the blades is greatly reduced, and overspeed braking is completed.

The utility model belongs to the field of environmental protection, and provides a horseshoe flame glass kiln tail flue gas treatment system which comprises a main flue, a baking soda desulfurization reaction flue, a baking soda injection pipeline, an NH3 pipeline, a high-temperature electrostatic dust collector and a low-temperature catalytic denitration reactor, one end of the main flue receives flue gas at the tail of the horseshoe flame glass kiln, and the other end of the main flue is sequentially connected with the baking soda desulfurization reaction flue, the high-temperature electrostatic dust collector and the low-temperature catalytic denitration reactor in series; the baking soda desulfurization reaction flue is also connected with a baking soda spraying device through a baking soda spraying pipeline; and the main flue between the high-temperature electrostatic dust collector and the low-temperature catalytic denitration reactor is also connected with an ammonia water area through an NH3 pipeline.