16results about How to "Reduce design" patented technology

This utility model discloses a compact and easy-to-assemble fan light, including a hanging assembly, a drive motor, a mounting plate, several fan blades, a light source, and an outer cover fitted over the drive motor. The drive motor and the light source are both connected to the hanging assembly. The mounting plate is connected to the output end of the drive motor and rotates with it. A mounting base is provided at the end of each fan blade. A connecting structure is provided between the mounting base and the mounting plate to connect the two. The outer cover has a recessed portion, and an inwardly recessed clearance groove on the outer side of the recessed portion to expose the connecting structure. The light source is located below the mounting plate. The clearance groove on the outer cover directly exposes the connecting structure between the fan blade mounting base and the mounting plate, allowing operators to operate directly through the clearance groove. Hands and tools can easily reach in without disassembling the outer cover. This reduces the installation difficulty for consumers, significantly improves installation efficiency, and enhances the user experience.

A sand core mold includes an upper core box and a lower core box integrally formed. The upper core box includes a first side and a second side opposite to each other in a first direction. The first side has a sand injection hole, and the second side is recessed to form a first sand mold groove. The lower core box includes a third side and a fourth side opposite to each other in the first direction. The third side is recessed to form a second sand mold groove. The second sand mold groove and the first sand mold groove form a cavity, which communicates with the sand injection hole. Along the first direction, the size of the cavity in the second direction gradually increases from the end closer to the first side to the end closer to the fourth side. The first direction is perpendicular to the second direction. In this application, by integrally forming the upper and lower core boxes, the number of core boxes is reduced, the mold design and manufacturing cycle is shortened, thereby reducing material and processing costs. The cavity forms a draft angle with a reverse slope, so demolding can be completed simply by separating the upper and lower core boxes, reducing the breakage rate of the sand core.

The application relates to a high-isolation liquid-crystal-based power-division phase shifter, belonging to the technical field of communication, which comprises a power-division phase-shifting layer, a liquid crystal layer and a bias control layer, an upper ground is arranged above the power-division phase-shifting layer, the liquid crystal layer is arranged below the power-division phase-shifting layer, and a lower ground is arranged between the liquid crystal layer and the bias control layer; the two ends of the power-division phase-shifting layer are respectively connected with an input end and an output end, the bias control layer is connected with a PFGA control, the forward voltage of the bias control layer is fed to the liquid crystal in the liquid crystal layer by being applied to the lower ground, the voltage size of the bias control layer is controlled by the FPGA, then the effective dielectric constant of the bias control liquid crystal is controlled, the capacitance value is changed, then the phase shift constant of the electromagnetic wave is changed, and the phase shift purpose is achieved. The application applies the bias voltage below the microstrip transmission line, not only reduces the wave beam leakage problem caused by the coupling and the direct-current blocking capacitor, but also omits the choke and the direct-current blocking capacitor design, and realizes the miniaturization of the overall structure.

This invention discloses a time amplifier with self-cancelling quantization noise and a fractional-frequency division phase-locked loop (PLL), belonging to the field of frequency synthesis technology. The self-cancelling quantization noise time amplifier of this invention is based on a resistor-discharge type time amplifier. A control signal containing quantization error information is output through a slow-slope control signal generator to control the slow-discharge path of the time amplifier. This achieves K-fold time error amplification while simultaneously canceling fractional-frequency division quantization noise. The PLL architecture built based on this amplifier eliminates the need for a large-delay loop digital-to-time converter. The phase noise of the slow-slope control signal generator is suppressed by the time amplification gain, breaking the performance trade-off of traditional architectures. This invention achieves a low-noise, low-power, and high-linearity fractional-frequency division PLL design without degrading the performance of the time amplification phase detector.

This application relates to a roof-mounted bus air conditioner base and an air conditioner base including a replacement component. The connecting support is a replacement component. By providing connecting supports of various specifications and preset angles, one can be selected to connect the fixed frame to the first evaporator module or the second evaporator module. Because the second fixing surface, the first fixing surface, and the fixed frame form a preset angle, the relative angle between the first and second evaporator modules and the fixed frame after fixation conforms to the preset angle. Therefore, when the roof-mounted bus air conditioner base of this utility model needs to be installed on the roof of different types of buses, different connecting supports can be selected according to the specific bus size to change the angle formed between the first and second fixing parts and the fixed frame after fixation. This allows for a close fit with different types of bus roofs, ensuring necessary sealing performance, improving versatility, and reducing design and modification costs.

The application discloses an engineering tire pattern structure with equal groove width, variable pitch, low noise and full wear period, and the like, and relates to the technical field of tires. The application breaks through the technical bottleneck of single performance, inconsistent performance of each pitch, uneven wear, poor structural reliability and low universality in the design of a traditional engineering tire variable pitch, and through integrated innovative design of equal groove width basic design+density differentiation matrix solid convex point+three-order universal pitch proportion, the application realizes the coordinated consideration of low noise, performance consistency, uniform wear and structural reliability, and is suitable for the use requirements of engineering tires in heavy load and multiple working conditions in all directions.

This utility model relates to a gas-fired trolley-type heater with internal denitrification, comprising a furnace body with several main burners mounted on it. The main burners are arranged in pairs facing each other, forming a group. The reversing valves of the two facing main burners are in different operating states, allowing them to operate in different states. Several environmentally friendly small burners are distributed on the furnace body wall, spaced apart from the main burners. The main burners and the environmentally friendly small burners are connected to a fuel pipe via a control valve assembly. This utility model, by incorporating environmentally friendly small burners to form small burner groups, works in conjunction with burner groups consisting of two or four burners to efficiently treat nitrogen oxides within the furnace body, significantly reducing the content of nitrogen oxides and other harmful substances in the flue gas and improving the heater's performance.

This application discloses a diaphragm pump, comprising: an integrated plunger rod, a motor, a worm gear, a diaphragm, a cylinder liner, a connecting rod, an eccentric block, and a slide rod, all installed within a housing. The motor, coupling, worm gear, connecting rod, eccentric block, and worm wheel are housed within the drive cavity of the housing; the diaphragm, integrated plunger rod, and cylinder liner are housed within the solution extrusion cavity of the housing. Using this pump body can effectively improve the shear stress concentration resistance of the plunger rod during operation without affecting transmission performance, thus reducing the possibility of plunger body breakage during operation. In actual use, no breakage has been observed during routine inspections for over four years.

The utility model relates to the field of precision casting, and specifically discloses a multifunctional shell making tool for large gas turbine blades, which comprises a force-bearing flat plate, the force-bearing flat plate is provided with a sliding groove, a sliding member is slidably connected in the sliding groove, a wax mold fixing member is detachably connected to the sliding member, a mechanical hand connecting member is fixedly connected to the force-bearing flat plate, and overturning connecting members are fixedly connected to the two sides of the force-bearing flat plate; the utility model can simultaneously make shells for blades with different numbers of pieces on one shell making tool, improves production efficiency, reduces the shell making tool design and manufacturing links for different types of blades, reduces the research and production costs of the tool, simultaneously reduces the storage and management costs of the tool, realizes shell making for different types of blades, expands the application range of the tool, effectively guarantees the stability of the shell during the shell making process, significantly reduces the size deformation of the castings, ensures that the product size precision meets high standard requirements, and improves product quality.

This invention relates to an integrated mandrel and a rotary transmission device with an integrated mandrel, belonging to the field of conductive slip ring technology. It solves the technical problem that the quality of electric slip rings is heavily dependent on the precision of machining and assembly processes, and that the transmission lines on the conductive ring are easily damaged, leading to reduced transmission quality. The integrated mandrel of this invention includes a mandrel base, pads, conductive pins, and transmission lines. Multiple sets of axial outlet holes, pin holes, and pads are evenly distributed circumferentially on one end face of the mandrel base. Multiple V-grooves are evenly distributed axially on the mandrel base, and each V-groove has a radial outlet hole at its bottom. The transmission line is disposed within the mandrel base, with both ends connected to the axial and radial outlet holes. The rotary transmission device with an integrated mandrel of this invention includes an integrated mandrel, a quick-connect body, a brush unit, a fixing frame unit, a mandrel connecting ring, and an external wire-connected connector. The integrated mandrel of this invention has a simple structure and can be flexibly customized; the rotary transmission device has good transmission performance.

The application discloses a CTLE (Continuous Time Linear Equalizer) based on a single amplifier and having a DC offset and common-mode voltage modulation function, and mainly solves the technical problem that the DC working point of the existing CTLE is easily affected by process deviation, input signal common-mode voltage and current mismatch, and an additional DC offset elimination loop is needed, thereby increasing the design and area complexity. The CTLE comprises a first-stage equalization unit EQ1, a second-stage equalization unit EQ2, a low-pass filter LPF, a frequency compensation unit and an offset and common-mode multiplexing amplifier OCMA. The CTLE adopts a single offset and common-mode multiplexing amplifier OCMA, simultaneously completes DC offset elimination and DC output control, and can reduce the design and area complexity.

This utility model discloses an ultra-thin embedded hard cover, including an edge adhesive strip, a guide rail system, a clip system, a fixing latch, multiple cover plates, and multiple flexible hinges, with gaps between adjacent cover plates. Each cover plate includes a front plate, a first middle plate, a second middle plate, and a small plate. The front plate and the first middle plate, the first middle plate and the second middle plate, and the second middle plate and the small plate are all connected by flexible hinges. The flexible hinges are made of flexible material or a combination of flexible and rigid materials.

The utility model relates to the technical field of compressed carbon dioxide energy storage, especially to a kind of compressed carbon dioxide energy storage system for recycling abandoned mine resources, including compressed energy storage subsystem, heat storage and heat exchange subsystem, liquefied gasification subsystem, medium-pressure liquid storage subsystem, expansion energy release subsystem, low-pressure gas storage subsystem.This kind of compressed carbon dioxide energy storage system using abandoned mine resources, for the effective development and utilization of mine resources, adopt capsule type flexible single membrane air warehouse structure, without outer membrane, cable net and air supplement system, can effectively reduce the construction cost and period of system, the device is aimed at widely distributed abandoned mine resources, according to the different regional geological conditions inside mine, using mine has certain pressure capacity and shelter effect, stable temperature environment and other favorable factors, effectively combined with compressed carbon dioxide energy storage system application, that is, realized the secondary development and utilization of abandoned mine resources, and promoted the development of compressed carbon dioxide energy storage technology application.

The application discloses a kind of based on step space placeholder shaping composite gradient material preparation process, the whole process space placeholder constraint of ceramic material is as core, first through digital modeling completes the space placeholder partition of gradient component and boundary locking, then through finite element simulation analysis the thermal isostatic pressing deformation law under placeholder constraint, subsequently adopt two-step coaxial powder feeding additive manufacturing process, first through ceramic powder completes full-area space placeholder and high-melting-point metal skeleton preforming, then remove the ceramic powder filling low-melting-point metal of target area, finally complete thermal isostatic pressing densification under the whole process constraint of ceramic space placeholder;The application solves the industry pain points of different powder cross mixing, gradient interface blur and high-temperature rheological deformation in traditional process from the root through step space placeholder technology, without customization package, greatly improve the forming precision and batch consistency of gradient structure.

This utility model discloses a continuous stamping structure for automotive hardware parts, belonging to the field of automotive hardware. It includes a worktable and a stamping plate. A pressure-applying and fixing device is provided on the top of the worktable, comprising two first limiting grooves. This utility model, by setting up hydraulic cylinders, a first pressure plate, a second pressure plate, a first return spring, a second return spring, a first limiting groove, a second limiting groove, and a buffer spring, allows the two hydraulic cylinders to synchronously drive the symmetrical first and second pressure plates. After the parts are pressed, the return springs, first limiting grooves, and second limiting grooves provide uniform and stable pressure from four directions, achieving stable clamping of the automotive hardware parts during stamping and ensuring the parts are fixed in position during stamping. This improves production quality and efficiency and reduces the design and installation costs of the fixing device.

This invention relates to the field of medical device manufacturing technology, and in particular to a method for preparing a composite material stent and the stent made therefrom. The method includes the following steps: Step S1, preparation of magnesium alloy tubing and initial processing of the skeleton; Step S2, surface pretreatment of the skeleton; Step S3, construction of an intermediate bonding layer; Step S4, coating with a PLLA outer layer; Step S5, molding and post-processing; Step S6, final inspection and sterilization. This invention achieves synergistically enhanced mechanical properties. The magnesium alloy core provides strong initial support, while the PLLA outer layer provides supplementary support. It also exhibits controllable degradation performance; the PLLA outer layer effectively delays the corrosion of the magnesium alloy by chloride ions and other substances in body fluids, extending the support time. The PLLA outer layer isolates the magnesium alloy from direct contact with blood, further reducing the risk of thrombosis. The specially designed intermediate bonding layer structure ensures the structural integrity of the stent during its service life.