41results about How to "Strong dustproof ability" patented technology

The invention provides a windproof and dust suppression device. The windproof and dust suppression device comprises a frame body and a windproof device, and further comprises a water spraying device, a fixing device and fixing supports. The windproof device comprises a plurality of first windproof screens, a plurality of second windproof screens and a plurality of stand columns, every two first windproof screens are fixedly connected through the stand columns, and every two second windproof screens are fixedly connected through the stand columns. The water spraying device is arranged on the frame body, and comprises water pipelines and a plurality of spraying heads; and the spraying heads are communicated with the water pipelines through thin pipes. The water pipelines are connected with an external water pump, and the frame body is provided with the fixing device and the fixing supports; the fixing device and one end of each fixing support are connected with the frame body; and the fixing device and the other end of each fixing support are buried in the ground. The windproof and dust suppression device has the beneficial effects that the structure is simple, and operation is convenient; the double-layer windproof screens are obtained, so that the dustproof action is higher; and an area needing water spraying can be determined according to actual needs.

The invention provides a hollow server case structure of a computer. The hollow computer server case structure with a pulling function comprises a suction fan, a wire harness clamping plate, telescopic rods, hollow protective plates, a glass cover and a supply fan; a base is ring-shaped; the ring-shaped suction fan is mounted on the ring-shaped inner side of the base; the arc-shaped hollow protective plates are mounted between two adjacent stand columns on the front side and between two adjacent stand columns on the back side; cellular cooling holes are densely distributed in the upper parts of the hollow protective plates; and the four telescopic rods in a rectangular array are mounted on the round edge of the base. By improving the hollow server case structure of the computer, the hollowserver case structure of the computer has the advantages that the structure is reasonable and compact; hollow glass matches with transparent glass, so that fashion and beauty are achieved and impression is strong; the cooling performance and the dustproof performance are good; and the pulling function is realized, so that the problems and deficiencies raised in a background technology are effectively solved and overcome.

The utility model relates to a vertical modular joint of a space manipulator, which relates to a joint of a space manipulator. The purpose of the present invention is to solve the problems of large mass, large volume, large power consumption and small output torque per unit mass of the current space manipulator. The driving device of the present invention is connected with the crown gear train device, and the crown gear train device and the wave generator (2-3-3) are all connected with the hollow transmission shaft (2-2-1), and the rigid wheel (2-3- 2) Connect with the support seat (2-6-1) of the second inner ring of the thin-walled bearing, and connect the support seat (2-6-1) of the second inner ring of the thin-walled bearing with the output flange (2-10). The invention has high degree of integration, high reliability, light weight, small volume, low power consumption, compact structure, large output torque per unit mass, high position output precision, high bending rigidity, and can adapt to strong space radiation, high vacuum, Environment with large temperature difference. It has the advantages of good maintainability and reliable operation.

The invention relates to the radio-positioning technical field, particularly a millimeter-wave time-division passive frequency modulation multi-channel automotive anti-collision radar, which is realized through the following steps: adopting the full-phase parameters to receive / transmit reference signals; asynchronously controlling the time division and the time sequence; watching the targets which are prone to collision on the w surface in an omni-directional manner through DSP cyclic scanning wave beams by a quasi-optical dielectric lens antenna circular array; controlling the time division SAW multi-channel passive frequency modulation through road condition cameras, an own vehicle speed, a GPS signal MCU; sending to antenna array to transmit through an up-converter, an amplitude limiter, T / R3, a frequency multiplier and a power amplifier, T / R2, an isolator and a wave beam switch; filtering the returning wave in a conjugating and matching manner with the transmitting SAW through the antenna array, the wave beam switch, the isolator, R / T1, the low-noise high amplifier, a down-converter, a medium amplifier, the time-division circuit and the SAW multi-channel signals; processing and controlling DSP and MCU; controlling the false-alarm when encountering a plurality of road barrier targets DSP and confirming the position, the distance and the relative speed; displaying the three-dimensional image on a CRT, wherein the closer the vehicle gets to the target, the higher the resolution power is; identifying the nearest distance to the vehicle; giving an alarm when the distance is smaller than the safety distance; and intelligently avoiding the barriers or reducing or braking if the distance is close to a risk distance, wherein the control is determined based on the actual condition of the road surface environment combined with the own vehicle speed and the GPS data, thereby improving the travelling safety.

The invention discloses a method for increasing the water absorption height of paper, which belongs to the technical field of papermaking. Firstly, the ratio of raw materials is stabilized. The raw materials of paper are coniferous and broad-leaved materials. The ratio is: 75-80:20-25, and then In the pulping process, the kappa value of the pulp is controlled to be 35-43, and finally the paper with improved water absorption height is obtained through beating, pulping, screening, sizing, mesh dehydration forming, pressing, drying, and rolling. This method enables the production of The water absorption height of fireproof board core paper, wet curtain paper and other paper types meets the requirements, and not only improves the water absorption height, but also improves the physical strength, and the produced paper has good dustproof performance, which can fully meet the needs of paper production.

The present invention relates to an ultraweatherability self-cleaning paint for outer wall, and its composition contains pigment filling material, moistening dispersing agent, defoaming agent, thickening agent A, B and C, polymer emulsion, anti-mildew bactericide, film-forming adjuvant and water, etc. Said emulsion paint has the water-proofing property, good dirt resistance and anti-ageing property. In particular, the anatase titanium dioxide powder body is added, it make said paint has self-cleaning function. The invention also provides preparation method.

The invention discloses a full-automatic greasing and capping machine, relating to a device for adding grease and a dust cap to a bearing. A workbench is fixed on a machine frame; a mounting base is fixed on the workbench; the front part of the mounting base is provided with a material support plate; the upper part of the mounting base is provided with a control device; the left side of the workbench is provided with a material conveyor, and the right side of the workbench is provided with an unacceptable product removing device; according to the processing sequence, two greasing devices, a grease quantity detection device, two capping devices, a dust cap height detection device and a grease equalizer are sequentially arranged on the mounting base from left to right; turning devices are respectively arranged between the two greasing devices and between the two capping devices; and a front reciprocating device and a rear reciprocating device are respectively arranged below the workbench. The full-automatic greasing and capping machine disclosed by the invention integrates the stations and the mounting base into a whole, is high in positioning accuracy and facilitates debugging and installation of a fixture mold; and the total seal shell is convenient for cleaning and maintenance, thus, the invention has the advantages of strong dustproof capacity, low danger coefficient, low failure rate and high product qualification rate.