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81results about How to "Small device" patented technology

Complex double-curvature creep aging forming device

The invention relates to a complex double-curvature creep aging forming device, wherein a thinking design of adjustable longitudinally-symmetrical multipoint bending deformation is adopted so that the complex single/double-curvature creep aging forming of a ribbed wallboard can be conveniently and easily realized. The complex double-curvature creep aging forming device provided by the invention mainly comprises an upper bracket 5, a lower bracket 12, a pressing plate 6, a guide plate 7, a compression bar 8, support bar 10, a double-head stud 1, four hexagon nuts 3, a flat washer 4, a hexagon bolt 2 and a lower connecting plate 11, wherein wallboards with different shapes and thicknesses are placed at a sample wallboard 9; the symmetrically-arranged hexagon nuts 3 are rotated to passes through the pressing plate 6 and the guide plate 7; load is applied to the wallboard 9 through the compression bar 8 arranged on the guide plate; and four adjustable symmetrically-arranged support bars 10 are arranged below the wallboard to ensure that the wallboard is deformed and various different initial curvature shapes of the wallboard 9 can be obtained through adjusting the positions of the compression bar 8 and the support bar 10 and the different fastening degrees of the hexagon nuts. According to the complex double-curvature creep aging forming device disclosed by the invention, the design of adjustable loading and supporting positions is adopted and suitable for the single/double-curvature bending deformation of a complex ribbed wallboard. Compared with a conventional device, the device provided by the invention has the advantages of simple and reliable structure and convenience for operation and is suitable for various heating devices.
Owner:CENT SOUTH UNIV

Trackside simulation method and system

The invention provides a trackside simulation method and a system. The trackside simulation method and the system specifically include: collecting actual state signals of physical devices including an annunciator and a turnout point switch, and performing analog collection of virtual state signals of a virtual device; updating an analog line operating state according to the actual state signals and the virtual state signals, including updating an access state and a turnout state in the analog line according to the actual state signals of the annunciator and the turnout point switches; outputting the analog line operating sate to a user through a graphical interface; outputting a device control signal according to the line operating state in combination with a user instruction; performing corresponding analog control operation on a mathematical model of the virtual device according to the device control signal; performing corresponding actual control operation on the physical device according to the device control signal, including controlling a display state of the annunciator and a positive and reverse position state of the turnout according to the device control signal. The trackside simulation method and the system can realize semi-physical simulation of a trackside system, thereby facilitating testing of a device and training of operating personnel.
Owner:TRAFFIC CONTROL TECH CO LTD

Portable type optical noninvasive breast self-inspection instrument

The invention provides a portable type optical noninvasive breast self-inspection instrument. The portable type optical noninvasive breast self-inspection instrument comprises a probe part and a main engine part, wherein the probe part comprises a near-infrared light source and a light-sensitive detector; the near-infrared light source is an integrated multi-spectrum-length LED (Light Emitting Diode) light source capable of emitting near-infrared light with at least two wavelengths; the light-sensitive detector can be used for detecting attenuation changes of reflected light transmitted by light emitted into breast tissues; the main engine part comprises a control module; a display module, an alarming module, a data storage module, a wireless module, an A/D (Analogue/Digital) conversion module and a driving module are connected with the control module respectively; the control module is connected with the near-infrared light source by the driving module; the light-sensitive detector is connected with the A/D conversion module by an amplification filtering module. The portable type optical noninvasive breast self-inspection instrument can be used for noninvasively and portably detecting the lesion suspiciousness of the breast tissues in real time, providing reference evidences for doctor diagnosis and drug use, and early warning tumor occurrence or tumor deterioration. The portable type optical noninvasive breast self-inspection instrument has high detection reliability, simple structure and low cost, can be domestically used, is portable and is worthy of being popularized and applied in a large range.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

Automatic production line for heat-preservation decoration composite boards

The invention discloses an automatic production line for heat-preservation decoration composite boards and particularly relates to the field of building material processing. The automatic production line comprises a heat-preservation board production line, a veneer production line and a composite production line, a first conveying belt is arranged on the heat-preservation board production line, the veneer production line is provided with a second conveying belt, a third conveying belt is arranged on the composite production line, and a center conversion assembly is arranged at the junction of the first conveying belt and the second conveying belt. A camera and an ultrasonic sensor are matched with a single chip microcomputer for detection and analysis, the output end of a first air cylinder is controlled to extend out to remove veneer rejected products, glass fiber cotton fibers are sprayed on the surfaces of qualified boards, and thus the performance of the composite boards is improved; and the two kinds of boards are composited in a bonded mode, then conveyed to a shunting assembly and positioned on guiding boards, the positioning effect is good, then the boards are conveyed to the third conveying belt to be composited, the composite boards are clamped to be scraped by two clearing boards, the two layers of boards are aligned to remove excess binders, and the quality of the composite boards can be improved.
Owner:XUZHOU COLLEGE OF INDAL TECH

Convenience calibration and autonomous control method for digital frequency conversion controller special for industrial metering pump

The invention relates to a site convenience calibration technology and autonomous control technology for a digital frequency conversion controller special for a metering pump. The problem of site calibration is solved, complex calibration becomes easier, convenient and easy to implement by means of control of the digital frequency conversion controller, only the metering pump needs to be started, the output quantity Q of the metering pump is measured when the pump stops working, then characteristic parameters of the pump can be obtained and stored in a nonvolatile storage unit of the digital frequency conversion controller, the digital frequency conversion controller can automatically calculate the flow, cumulant and other metering parameters according to the characteristic parameters, and a calibration result correction method is given. According to the site convenience calibration technology and autonomous control technology, the aim of autonomous control is achieved, no external controllers are needed, autonomous control can be achieved only through a controlled volume measured value and a technological set value, the control structure can be simplified, the cost is reduced, the technological set value can be converted into a standard signal value particularly, and the good universality is achieved.
Owner:ZHEJIANG UNIV OF TECH

Floor drain equipped with wireless alarm device

The invention discloses a floor drain equipped with a wireless alarm device. The floor drain comprises a floor drain body, a base, a filter cover and an alarm device, wherein the floor drain body is sleeved with the base; a water outlet connected with a water drainage pipeline and the filter cover matched with the base are arranged on the floor drain body; a drain hole is formed in the filter cover; the base adopts an L-shaped cavity structure; a sensor used for monitoring water level and a wireless transmitter used for emitting a sensor monitoring signal are arranged in a cavity in the side part of the base; the alarm device is used for alarming according to a signal sent out by the wireless transmitter, and comprises a wireless receiver used for receiving the signal sent out by the wireless transmitter and an alarming module. The floor drain equipped with the wireless alarm device, provided by the invention, is small and exquisite, has a simple structure, and is very convenient to use and maintain; the base, the filter cover, the drain hole and a drainage slot are all designed by adopting an L-shaped structure, the water level monitoring function and the wireless alarming function are integrated, the sensor has high monitoring sensitivity and the response time of the sensor is short, smooth drainage can be realized, and remote monitoring and real-time alarming can be achieved.
Owner:舟山市普陀飞兴电子科技有限公司

Differential gear transmission opening indicator for extension rod butterfly valve

The invention relates to a differential gear transmission opening indicator for an extension rod butterfly valve. The differential gear transmission opening indicator comprises a box body, a gear disc located on the upper surface of the box body, an input shaft, a first gear, a second gear, a first gear ring and a second gear ring, wherein the input shaft, the first gear and the second gear are arranged in the box body, the first gear ring and the second gear ring are connected with the first gear and the second gear in a matched mode respectively, the first gear and the second gear are arranged coaxially, the first gear ring and the second gear ring are coaxial with the input shaft respectively, the first gear is arranged on the input shaft in a sleeving mode, the second gear is connected with the first gear in a spot welding mode, the modulus of the gears is equal to that of the gear rings, the number of teeth of the gears is less than that of the teeth of the gear rings, and the first gear ring is connected with a gear disc and drives the gear disc to rotate. Compared with the prior art, by means of the differential gear transmission opening indicator, the problem that it is difficult to know the opening and closing degree of a valve of an existing underground pipe network extension rod butterfly valve.
Owner:上海冠龙阀门自控有限公司 +1

Method for removing volatile halocarbons in environment through chemical conversion

The invention relates to a method for removing volatile halocarbons in environment through chemical conversion, and belongs to the technical field of environmental engineering. Gas or liquid containing the volatile halocarbons reacts with a dehalogenation agent under the heating condition, and the volatile halocarbons in the environment are removed. The method is specially characterized in that the gas or the liquid containing the volatile halocarbons is led into a dehalogenation agent bed layer after drying pretreatment, the halocarbons and the dehalogenation agent react at the temperature of 150 DEG C to 700 DEG C to generate CO2, H2O, gaseous metal halides and the like, generated gaseous substances are blown through carrier gas to flow out of the bed layer, the gaseous substances pass through an absorption cell to be absorbed and treated, exhausted tail gas does not contain toxic substances, and the halocarbons do not exist in residue in the bed layer. At the low reaction temperature, the method can completely remove the halocarbons used for reaction. Compared with traditional methods of physical absorption, high-temperature burning, metal reduction and the like, the method has the advantages of being short in repairing period, thorough in conversion, free of generating secondary pollution and the like.
Owner:SHANGHAI RES INST OF CHEM IND
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