6results about How to "Avoid layout" patented technology

This invention relates to the field of chemical reaction equipment technology, specifically to a formaldehyde oxidation reactor with an easy-to-clean airflow distribution plate. The reactor includes a reactor body, an inlet chamber, an airflow distribution plate, and a cleaning system. The cleaning system includes a gas collecting hood disposed within the inlet chamber, a gas delivery mechanism that drives the gas collecting hood to rotate around the axis of the reactor body while adhering to the bottom surface of the airflow distribution plate, and a high-pressure pulse source located outside the reactor body. By setting a sliding gas collecting hood within the inlet chamber and cooperating with the external high-pressure pulse source, online cleaning is achieved without shutting down the reactor or lowering the temperature. This transforms traditional top mechanical scraping into a bottom-directed jet, eliminating the interference and jamming risks caused by mechanical scrapers moving between high-temperature, dense air caps, and solving the problems of flow deviation and localized overheating caused by pore blockage.

The invention relates to a broadband low-phase-noise voltage-controlled oscillator based on a CMOS (Complementary Metal Oxide Semiconductor) process, aiming at solving the problems that the wide tuning and low-phase-noise of the traditional Class-F VCO are difficult to be compatible, the tuning range is narrow and the like. The core architecture comprises four parallel VCO (Voltage Controlled Oscillator) units, a matched buffer and a two-stage alternative selector, each VCO unit is integrated with an exclusive optimized transformer, a multi-bit digital controlled switched capacitor array and a parallel resistor array, and a unilateral tuning design is adopted. The switched capacitor array comprises a coarse tuning unit and a fine tuning unit, and is matched with the overlapping margin of each VCO sub-band to realize seamless connection; the transformer adopts a composite regular octagonal structure, so that the quality factor and the coupling coefficient are improved; the buffer suppresses signal crosstalk, and the selector ensures rapid low-loss switching. According to the scheme, ultra-wide continuous tuning is achieved, the full-band phase noise optimally reaches-131.666 dBc / Hz and 1 MHz, the frequency stepping precision and the signal stability are both considered, and the antenna is suitable for high-frequency and high-requirement scenes such as 5G millimeter wave communication and radar detection.

The application relates to a composite adjustable double-ring diamond cup-shaped grinding wheel and belongs to the technical field of glass edge grinding. The composite adjustable double-ring diamond cup-shaped grinding wheel comprises an inner wheel and an outer wheel sleeved on the inner wheel, a plurality of inner wheel cavity grooves are arranged on the inner wheel in a circumferential interval, a plurality of outer wheel cavity grooves are arranged on the outer wheel in a circumferential interval, inner wheel grinding pieces and outer wheel grinding pieces are respectively fixedly installed in the inner wheel cavity grooves and the outer wheel cavity grooves, the inner wheel grinding pieces and the outer wheel grinding pieces are arranged in a circumferential overlap and stagger mode, the inner wheel grinding pieces and the outer wheel grinding pieces are respectively elastic grinding pieces and rigid grinding pieces, and the outer peripheral surface profile of the part of the inner wheel grinding piece radially greater than or equal to the inner diameter of the outer wheel is an arc surface or an inclined surface. The application is favorable for avoiding the generation of steps in the grinding process, thereby avoiding the edge collapse of the workpiece.

The utility model discloses a kind of electric drive assembly and electric two-wheeled vehicle, comprising: first casing, first cooling flow passage is equipped in it;Speed reducer body, is installed in the first casing;Second casing, with the first casing detachably connected, second cooling flow passage is equipped in it;Controller, is installed in the second casing, and with the first cooling flow passage thermal coupling;Motor body, is installed in the second casing, and with the second cooling flow passage thermal coupling;Wherein, the first cooling flow passage and the second cooling flow passage are formed by casing joint surface for the continuous cooling circuit of cooling liquid circulation flow circulation.The utility model uses above structure, cooling performance is good, and motor body, controller and speed reducer body can be cooled simultaneously.

The utility model belongs to the technical field of protective articles, disclose inner lens rotating device and helmet including inner lens quick release seat and driving gear, inner lens quick release seat includes annular part and connecting portion, connecting portion is fixed in annular part one side, and connecting portion detachably installs inner lens, and the ring inside of annular part is equipped with driven gear;Driving gear is located between connecting portion and annular part, and with the driven gear engagement of annular part ring inside, forms inner and outer gear pair structure, wherein driving gear diameter is less than annular part diameter, and the number of teeth of driving gear is less than the number of teeth of driven gear, and the knob is installed on driving gear, and the knob can adjust driving gear rotation angle, to drive inner lens quick release seat rotation through gear engagement. The utility model's structure connection is compact, and the space is small, when operating, the starting process is more labor-saving and smooth, and the flexible, convenient adjustment of inner lens angle is convenient to realize, can be conveniently disassembled and replace inner lens, improves the convenience of use and user experience.

The utility model relates to a clearing machine equipment technical field provides a kind of quick positioning and clamping mechanism of clearing machine screen box welding, including workbench, its corner is equipped with guide slot;Lower fixed component, set in the lower part of workbench guide slot, can horizontally slide;Upper fixed component, set in the upper part of workbench and connect with lower fixed component;Upper fixed component includes wedge and the sliding angle matched with it, by the inner wall of wedge and sliding angle with sieve plate and support, realize the lifting and fixed of sieve plate. Through upper and lower fixed component cooperation, the inner wall of wedge and sliding angle with sieve plate and support, so as to realize the horizontal position quick adjustment of sieve plate, replace traditional guide rail, slider and connecting rod module, significantly reduce the number of moving parts, reduce assembly and debugging difficulty.