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921results about How to "Easy to install and remove" patented technology

Measuring system and measuring method of mass, center of mass and moment of inertia of rigid body

The invention provides a measuring system and a measuring method of mass, center of mass and moment of inertia of a rigid body, and the measuring system comprises a measurement control and analysis unit, a six degree-of-freedom motion platform, a six-component force sensor and a mounting platform, wherein the measurement control and analysis unit is used for controlling the attitude or the motion way of the rigid body by sending a motion signal to the six degree-of-freedom motion platform, and analyzing and calculating the mass, the center of mass and the moment of inertia of the measured rigid body according to the motion signal and force and torque sent by the six-component force sensor; the six degree-of-freedom motion platform is used for carrying out motion in the corresponding attitude or the motion way according to the received motion signal; the six-component force sensor is mounted on the six degree-of-freedom motion platform and used for obtaining the force and the torque received by the measured rigid body by acquiring measurement parameters; the mounting platform is fixed on the six-component force sensor and used for mounting the measured rigid body; and the six degree-of-freedom motion platform drives the measured rigid body to carry out the motion through the six-component force sensor and the mounting platform.The measuring system and the measuring method can realize the measurement of the mass, the center of mass and the moment of inertia, and have the advantages of simple steps and small errors.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Simulation experimental pipeline device and simulation experimental method of multi-phase fluid erosion and flow states

ActiveCN103926191AAvoid edge effectsEasy to install and removeWeather/light/corrosion resistanceIndustrial siteBall valve
The invention provides a simulation experimental pipeline device of multi-phase fluid erosion and flow states. The simulation experimental pipeline device comprises a pipeline, a bracket, an erosion resistant storage tank, an erosion resistant pump, a ball valve, an electromagnetic flow meter, a resistance probe, a temperature meter, a pH meter and an oxygen dissolving analyzer, wherein the pipeline comprises an waved pipeline erosion test area and a horizontal pipeline erosion test area. The waved pipeline is simulated through the simulation experimental pipeline device with various inclined angles; the change of erosion rates is recorded in real time by virtue of the resistance probe; an annular sample of which the diameter is the same with the inner diameter of the pipeline is adopted in the horizontal pipeline area. A weight loss method and an electrochemical method are used for monitoring the internal erosion of the pipeline, and the flow states and the multi-phase fluid erosion at an industrial site can be truly simulated, so that the technical problem that the flow characteristic and erosion behavior in a flowing pipeline at an industrial site cannot be truly reflected through indoor dynamic erosion simulation is solved.
Owner:CHINA PETROLEUM & CHEM CORP +1

System and method for aligning silk-screen printing

The invention relates to the technical field of silk-screen printing equipment, particularly to a system and method for aligning silk-screen printing. A silk screen plate and a lifting table are arranged on a silk-screen printing machine, a fixture is arranged on the silk screen plate, an XYR micro-motion platform is arranged on the lifting table, a vacuum chuck is arranged on the XYR micro-motion platform, the vacuum chuck is used for adsorbing a printing stock, and the printing stock corresponds to a position under the silk screen plate; a first positioning mark is arranged on the silk screen plate, and a second corresponding positioning mark is arranged on the print stock; the fixture is used for regulating the height and the two-dimension plane coordinates, which are relative to those of the silk screen plate, of an imaging and amplifying camera, the XYR micro-motion platform is used for regulating the two-dimension plane coordinates of the print stock and rotating the print stock, the lifting table is used for regulating the height of the printing stock, the first positioning mark on the silk screen plate and the second corresponding positioning mark on the print stock are collected by the imaging and amplifying camera, and the position and the direction of the printing stock are regulated through the XYR micro-motion platform and the lifting table, so that the first positioning mark and the second positioning mark are accurately aligned, and the effect that a blanking region of the printing stock and a pattern on the silk screen plate are accurately aligned is achieved.
Owner:XIAMEN UNIV

Conformal phased array radar structure

The invention discloses a conformal phased array radar structure. The conformal phased array radar structure comprises a conformal support, a power supply module connected with one end of the conformal support and provided with a groove in one end which faces the conformal support, a wave controller fixed in the groove of the power supply module, which faces the conformal support, antenna modules installed on a housing of the conformal support in distribution mode, transmitting and receiving modules installed on the inner side wall of the housing of the conformal support in distribution mode and connected with the antenna modules through electric circuits, a power division network arranged in the conformal support and connected with the transmitting and receiving modules through electric circuits, a sum and difference network fixedly connected in the conformal support and a high frequency module fixedly connected in the conformal support. According to the conformal phased array radar structure, a conformal circumferential antenna array surface is formed by installing multiple groups of the antenna modules on the outer circle of the conformal support, and the function of searching a target in a body circumference area is provided to a device which needs guidance through continuous transmitting and receiving of antenna array surface wave beams.
Owner:SHANGHAI RADIO EQUIP RES INST

Diaphragm wall joint flexible water stop installing device and method

The invention relates to a diaphragm wall joint flexible water stop installing device and a method. The installing device is a connector pipe structure made of steel plates or profile steel with width-thickness ratio being close to 1, at least one mounting groove capable of installing a rubber water stop is arranged on one side of the installing device in contact with concrete, and the width at an opening of the mounting groove is slightly smaller than that of a groove cavity. Since the width-thickness ratio of the connector pipe is close to 1, one side of the connector pipe in contact with soil is closely stuck with a soil layer, no phenomenon of flow around exists during the concrete pouring process, the subsequent construction of the groove section is greatly facilitated, and the installing device and the installing method have the advantages of the round pipe connector and overcome the defects of the I-shaped steel connector; the installation and the disassembly are convenient; the connection of the connector pipes is reliable, and the installing device and the installing method have sufficient rigidity, further meet the requirements for deformation resistance and connection and provide convenience for lifting the connector pipe; and the installed rubber water stop has good effect, does not drop off, can be completely retained on a concrete interface, and can well be adapted for the deformation caused by long-term dynamic load in the soft soil strata and prevent the seam from leaking due to misplacement.
Owner:GUANGDONG FOUND ENG GRP CO LTD +1

Early warning type telegraph pole anti-collision barrel and alarm method thereof

The invention relates to an early warning type telegraph pole anti-collision barrel which mainly comprises an outer barrel, a base, an inner barrel and an upper cover and further comprises a grading shrinkage rod, a multi-element sensing device, a control device, sound and light alarm devices, a rechargeable battery, a solar charging device and a CT (current transformer) charging device. The outer barrel comprises two sub outer barrels. The base is fixedly connected to the position below the outer barrel and extends outwards. The inner barrel comprises two sub inner barrels. The upper cover comprises two sub upper covers. The grading shrinkage rod is arranged between the outer barrel and the inner barrel. The multi-element sensing device comprises a vibration sensor, an inclination sensor and an ultrasonic ranging sensor. The controller is arranged in a control box. The sound and light alarm devices are evenly distributed on the outer wall of the outer barrel in the circumferential direction. The rechargeable battery is arranged in the control box. The solar charging device and the CT charging device are electrically connected with the rechargeable battery through a charging power source switching unit. By the adoption of the early warning type telegraph pole anti-collision barrel, a telegraph pole is effectively protected and an early warning can be given.
Owner:JIAOZHOU POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO

Clamping and sealing clamp for end of pipe

The invention relates to a clamping and sealing clamp, in particular to a clamping and sealing clamp for the end of a pipe in order to solve the problems that due to the fact that clamping and sealing are mutually independent in an existing pipe tensioning-expanding test experiment and are mutually affected when in use, smooth conduction of the experiment is difficult to guarantee, clamping and sealing of the pipe can not be effectively combined, and the accuracy of the pipe performance experiment is affected. The clamping and sealing clamp comprises a mandrel, a sealing ring, a wedge-shaped block, a carrier plate, a screwing part, an elastic element, an outer clamping ring, N wedge-shaped inner claws, N wedge-shaped outer claws and N ejection rods. The screwing part is in threaded connection with the other end of the mandrel. The mandrel is sleeved with the outer clamping ring. The wedge-shaped block, the N wedge-shaped inner claws and the N wedge-shaped outer claws are arranged between the outer clamping ring and the mandrel. The N wedge-shaped inner claws and the N wedge-shaped outer claws are arranged in the peripheral direction of the mandrel. The part, between the screwing part and the outer clamping ring, of the mandrel is sleeved with the carrier plate and the elastic element. The elastic element abuts against the carrier plate and the outer clamping ring. The clamping and sealing clamp is used for clamping and sealing the end of the pipe during a pipe tensioning-expanding test experiment.
Owner:HARBIN INST OF TECH

Automobile tail gas pipe temperature difference power generation device

The invention discloses an automobile tail gas pipe temperature difference power generation device, which comprises at least two temperature difference power generation modules, a first connecting piece and a hoop mechanism, wherein the at least two temperature difference power generation modules are arranged on the periphery of an automobile tail gas pipe along the peripheral direction of the automobile tail gas pipe; each temperature difference power generation module comprises a rigid substrate, a radiating substrate, a plurality of thermoelectric sheets arranged between the rigid substrate and the radiating substrate, two insulation boards which are arranged on two sides (along the peripheral direction of the automobile tail gas pipe) of the rigid substrate, and a flexible heat-conducting base for transferring heat to the rigid substrate from the automobile tail pipe; the first connecting piece is connected between the insulation boards of adjacent two temperature difference power generation modules along the peripheral direction of the automobile tail gas pipe; and the hoop mechanism comprises a second connecting piece and a third connecting piece which are respectively connected with the insulation boards of adjacent two temperature difference power generation modules and are on the periphery of the automobile tail gas pipe and along opposite directions, and screwing bolts connected with the second connecting piece and the third connecting piece. The temperature difference power generation device is portable and easy to mount and detach, and power generation power can be freely matched, so that the use of the automobile exhaust power generation device is facilitated.
Owner:HUANENG CLEAN ENERGY RES INST

Convenient-for-arrangement cable wire arranging apparatus for electric appliances

The invention discloses a convenient-for-arrangement cable wire arranging apparatus for electric appliances. The convenient-for-arrangement cable wire arranging apparatus for electric appliances includes a wire arrangement panel, wherein the wire arrangement panel is detachably connected with a computer case; a plurality of wire arrangement grooves are embedded into the surface of the wire arrangement panel; through coordinative setting of dovetail slide grooves and dovetail slide blocks, installation of the wire arrangement panel is convenient; the cable with the unnecessary length winds around the surface of cable reels, and under the elastic force of springs, clamp sleeves of the cable reels sleeve clamp blocks and cannot move, and then rotation bars are rotated to be clamped into the cable grooves; when the length of the cable is stretched as required, the cable reels are pushed toward one end of the springs, and then the clamp sleeves are detached from the clamp blocks while the cable reels can be rotated once the cable is pulled, so as to increase the length of the cable; and after the rotation shafts are pressed into the cable grooves, baffle plates are pressed to push slidebars to slide in fixed tubes, and then the baffle plates are rotated and are released, and then the slide bars slide upward under the elastic force of the springs, so as to enable bulged blocks to beclamped into the grooves, thus realizing fixing of the baffle plates.
Owner:南京市特霸光电科技有限公司

Integrated tooling clamp for welding and heat treatment of thin-wall case and assembling method of integrated tooling clamp

The invention discloses an integrated tooling clamp for welding and heat treatment of a thin-wall case and an assembling method of the integrated tooling clamp. The integrated tooling clamp comprisesa base, a positioning block and a gland; a plurality of lower end face pressing mechanisms used for pressing the lower end face of the thin-wall case are uniformly distributed in the circumferential direction of the base; a positioning spigot matched with the lower end face of the thin-wall case is further arranged on the base; the gland is arranged on the periphery of the upper end face of the thin-wall case and is located in an upper spigot of the positioning block, an upper end face pressing mechanism is arranged between the gland and the upper end face of the thin-wall case, and one end ofthe positioning block is arranged on the base through a fixing mechanism; and the other end of the positioning block is connected with the upper end face of the thin-wall case. The deformation of a part in the radial direction in the welding and heat treatment processes can be effectively controlled, and it is ensured that the roundness and flow channel surface runout after welding and heat treatment meet design requirements.
Owner:CHENGDU ENGINE GROUP

Method for monitoring growth and calcification rate of hermatypic coral in natural sea area

The invention discloses a method for monitoring the growth and calcification rate of hermatypic coral growth in a natural sea area. The method comprises the following steps: 1, setting a substrate in a coral reef distributed sea area, and mounting a coral reef fixing substrate on the substrate; 2, collecting corallum, weighing the relative weight M0 of the corallum in preset liquid by using a weighing device; adhering the corallum in a coral accommodating substrate to form a connecting body, airing the connecting body, and weighing the relative weight M1 of the connecting body by the weighing method; 3, connecting the coral accommodating substrate with the coral fixing substrate through a connecting piece, and domesticating the coral accommodating substrate and the coral fixing substrate in situ in the coral reef distributed sea area for a while; 4, separating the coral accommodating substrate from the coral reef distributed sea area, weighing the relative weight Mi+1 of the connecting body; 5, connecting the coral accommodating substrate with the coral fixing substrate through the connecting piece, culturing the coral accommodating substrate and the coral fixing substrate for culturing time ti in the coral reef distributed sea area, repeating the step 4, and recording the relative weight Mi+2 of the connecting body after the time ti; and 6, acquiring the growth and calcification rate of the corallum with unit weight in ti time slot through (Mi+2-Mi+1)/(Mi+1-M1+M0)/ti.
Owner:SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI

Movable type drain grating device arranged at water inlet of hydropower station

The invention discloses a movable type drain grating device arranged at the water inlet of a hydropower station and capable of intercepting water surface trash. The movable type drain grating device comprises a left stand column, a right stand column, trash rack supporting bars and trash racks. The trash racks are of a unit combined structure. Each trash rack is composed of a drain grating net, a drain grating support shaped like a Chinese character 'hui' and clamping hooks. Each drain grating net is fixedly connected into an inner frame formed by the corresponding drain grating support shaped like the Chinese character 'hui'. The corresponding clamping hooks are fixedly connected to each drain grating support shaped like the Chinese character 'hui'. The trash rack supporting bars are provided with clamping grooves matched with the clamping hooks. According to the movable type drain grating device, the height of each trash rack can be adjusted freely according to variation of the water level; the trash racks are of the unit combined structure, so that maintenance and replacement are facilitated; the amount of trash intercepted by the trash racks can be sensed and detected in real time, the trash can be cleaned up in time, the problem of manual field detection is solved, and time and labor are saved.
Owner:DATANG YANTAN HYDROPOWER CO LTD

Electric appliance cabinet convenient to disassemble and install

The present invention discloses an electric appliance cabinet convenient to disassemble and install. The electric appliance cabinet comprises a cabinet body, a first panel, a second panel and fixing members, a canopy is installed at the upper end of the cabinet body, and a pedestal is fixed at the lower end of the cabinet body. A fire extinguisher is installed at the upper right end of the pedestal, the upper end of the fire extinguisher is connected with a fire extinguisher pipeline, and a fan device is installed at the upper end inside the cabinet body. A smog alarm is installed at the leftend of the cabinet body, fixing member slots are both arranged in the left and right ends of the first and second panels, and the fixing members are connected with the first and second panels via fixing holes. According to the electric appliance cabinet convenient to disassemble and install, the canopy is installed at the upper end of the cabinet body, thereby facilitating keeping out wind and rain for the electric appliance cabinet when raining, and avoiding a phenomenon that the too heavy rainwater collapses the canopy. A dedusting cloth bag is connected at the lower end of a supporting frame in a telescopic manner, thereby facilitating that the dedusting cloth bag collects the dust in the electric appliance cabinet better and more comprehensively.
Owner:江阴多高自动化科技有限公司

Passive mattress encasement

A passive mattress encasement is disclosed which can be relatively easily installed or removed over a mattress supported by a foundation. The encasement is formed to encapsulate a mattress and includes a top panel, a bottom panel and multiple side panels. One or more of the side panels are zippered together. The unzippered side panels, i.e., the panels without zippers, fixedly connect the top panel to the bottom panel. The top and bottom panels as well as the side panels may be made from conventional materials. The underside of the top panel and optionally the inside of the side panels may be coated with a waterproof coating, such as thermoplastic polyurethane (TPU/PU), silicone, or urethane to form a waterproof membrane. In accordance with an important aspect of the invention, the bottom panel is formed with a slick interior surface and a non-slick exterior surface. The exterior non-slick surface allows a mattress to be rotated without affecting an optional underlying bed skirt while the slick interior surface facilitates rotation of the mattress. The present invention also facilitates easy installation and removal of the encasement over a mattress. Optional straps may be provided, fixedly attached to the encasement. The straps allow the encasement to be snugged against the mattress to enable the encasement to be used with a relatively wide range of mattress depths perimeter lengths and still provide a snug fit.
Owner:LEVITATION SCI

Monitoring direction finding system based on aircraft-mounted lift-off interferometer

The invention discloses a monitoring direction finding system based on an aircraft-mounted lift-off interferometer. The monitoring direction finding system comprises a rotor wing aircraft, a flight remote controller, monitoring direction finding equipment and a monitoring direction finding terminal, wherein the monitoring direction finding equipment is loaded on the rotor wing aircraft; the monitoring direction finding equipment is connected with the monitoring direction finding terminal through WIFI (Wireless Fidelity); the monitoring direction finding equipment comprises an electronic compass, a GPS (Global Position System) antenna, a GPS module, a direction finding antenna, a receiver, an X86 processing board, a WIFI module and a WIFI omnidirectional antenna; the output end of the GPS antenna is connected with the GPS module; the output end of the GPS module and the output end of the electronic compass are connected with the X86 processing board respectively; the output end of the direction finding antenna is connected with the receiver; the receiver is connected with the X86 processing board; the X86 processing board is connected with the WIFI module; and the WIFI module and the monitoring direction finding terminal are in wireless communication through the WIFI omnidirectional antenna. The monitoring direction finding system based on the aircraft-mounted lift-off interferometer, provided by the invention, can be used for effectively improving the direction finding accuracy.
Owner:CHENGDU JIUHUA YUANTONG TECH DEV
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